Praziquantel (PZQ) is the preferred drug for schistomiasis treatment because of its safety. As PZQ is used for mass drug administration (MDA) in schistosomiasis endemic areas, the effectiveness of the drug, used solely for decades, should be continuously monitored to detect drug resistance. We aimed to assess the effectiveness of PZQ to cure Schistosoma mansoni infection and to reduce the intensity of infection in an endemic area by estimating the cure rate (CR), egg reduction rate (ERR), and comparing these estimates to the levelsrecommended by the World Health Organization (WHO). A total of 342 children aged 5-15years living in Kafr-El-Sheikh were screened for S. mansoni infection. https://www.selleckchem.com/products/orelabrutinib.html Stool samples were examined microscopically using Kato-Katz (KK) technique. Among the screened children,106 children had S. mansoni ova in stool, 100 of them received the first dose of PZQ (40mg/kg). Four weeks later, 96 of 100 children received the second dose of PZQ. Stool samples, collected 4 weeks after each dose of PZQ, were examined using KK. The effectiveness of PZQ was assessed based on ERR and CR. CR after the first dose of PZQ was 66.7%, increased to 79.12% after second dose (X  = 3.05, P = 0.08). Median egg count before treatment was 30.00 (6.00-744), that significantly decreased after two doses of PZQ to 0.00 (0.00-221.33) (Z = 8.29, P = 0.001). Children aged 10-15years showed higher CR (91.3%) than those aged 5-9years (OR = 5.25, CI 1.58-17.40). PZQ is still an effective agent against S. mansoni in endemic areas, achieving a high CR and ERR with predominantly low intensity of infection. Age is a main predictor of response to PZQ. PZQ is still an effective agent against S. mansoni in endemic areas, achieving a high CR and ERR with predominantly low intensity of infection. Age is a main predictor of response to PZQ.Bone marrow mesenchymal stem cells (BM-MSCs) are multipotent cells with self-renewal properties, making them an ideal candidate for regenerative medicine. Recently, numerous studies show that about more than 99% of transplanted cells are destroyed because of the stressful microenvironment. Meanwhile, in the target organs, iron overload can produce oxidative stress introducing it as the most important stress factor. The present study was aimed at increasing BM-MSCs' viability against oxidative stress microenvironment using iron depletion by deferoxamine (DFO). Mesenchymal stem cells are isolated and characterized from rat bone marrow. Then, the sensitivity of BM-MSCs against H2O2-induced oxidative stress was evaluated through half of the inhibitory concentration (IC50) estimation by using MTT assay. The maximum non-inhibitory concentration of DFO on BM-MSCs was determined. The next step was the comparison between DFO pre-treated BM-MSCs and untreated cells against H2O2-induced apoptosis. BM-MSCs were identified with morphologic and flow cytometry analysis. IC50 of H2O2 was determined as 0.55 mM at 4 h. Also, the maximum non-inhibitory concentration of DFO was ascertained as 5 μM at 48 h. Our results demonstrated that pretreatment with DFO significantly potentiates BM-MSCs against H2O2-induced oxidative stress which was confirmed by MTT assay, AO/EB double staining, DAPI staining, and activated caspase 3 quantification as well as western blot test. Expression of cleaved caspase 3 and pAKT/AKT ratio obviously demonstrated DFO can resist the cells against cytotoxicity. These findings may help to develop better stem cell culture medium for MSC-based cell therapy. Moreover, regulation of cell stress can be used in practical subjects.Severe acute respiratory syndrome-related coronavirus 2 infection has been associated with Guillain-Barré syndrome. We investigated here the potential mechanism underlying the virus-induced damage of the peripheral nervous systems by searching the viral amino acid sequence for peptides common to human autoantigens associated with immune-mediated polyneuropathies. Our results show molecular mimicry between the virus and human heat shock proteins 90 and 60, which are associated with Guillain-Barré syndrome and other autoimmune diseases. Crucially, the shared peptides are embedded in immunoreactive epitopes that have been experimentally validated in the human host. Reliable information about the spatial distribution of aboveground biomass (AGB) in tropical forests is fundamental for climate change mitigation and for maintaining carbon stocks. Recent AGB maps at continental and national scales have shown large uncertainties, particularly in tropical areas with high AGB values. Errors in AGB maps are linked to the quality of plot data used to calibrate remote sensing products, and the ability of radar data to map high AGB forest. Here we suggest an approach to improve the accuracy of AGB maps and test this approach with a case study of the tropical forests of the Yucatan peninsula, where the accuracy of AGB mapping is lower than other forest types in Mexico. To reduce the errors in field data, National Forest Inventory (NFI) plots were corrected to consider small trees. Temporal differences between NFI plots and imagery acquisition were addressed by considering biomass changes over time. To overcome issues related to saturation of radar backscatter, we incorporate radar of tropical dry forests and shows predictors of AGB that should be considered in future studies. Our results highlight the importance of using ecological knowledge to correct errors associated with both the plot-level biomass estimates and the mismatch between field and remotely sensed data. This study reveals that the suggested approach has the potential to improve AGB maps of tropical dry forests and shows predictors of AGB that should be considered in future studies. Our results highlight the importance of using ecological knowledge to correct errors associated with both the plot-level biomass estimates and the mismatch between field and remotely sensed data. Newer classification systems for upper cervical spine trauma now include ligamentous injury in addition to fracture and dislocation patterns. Assessment of associated ligamentous injury, spinal cord injury (SCI), and blunt cerebrovascular injuries (BCVI) in patients with atlanto-occipital distraction injuries (AODI) are critical for management. We aim to determine the incidence of ligamentous injury, SCI, and BCVI in patients with AODI and assess how craniometrics perform in diagnosis of AODI. We performed an IRB-approved retrospective analysis of 35 cases of diagnosed AODI over a period of 8 years. Imaging was analyzed by two experienced neuroradiologists for craniometric measurements, ligamentous injury, SCI, and BCVI. Craniometric measurements were compared to 35 age-matched controls with normal atlanto-occipital joint. Out of 35 patients diagnosed with AODI, 27 were adults and 8 belonged to pediatric age group. The mean age of presentation was 29.4 years with a male/female ratio of 2213. The basion-dental interval (70.

BACKGROUND A substantial increase in rates of suicide worldwide, especially among late adolescents and young adults, has been observed. It is important to identify specific risk and protective factors for suicide-related behaviors among late adolescents and young adults. Identifying specific factors across the masses, not only in the Western, but also in the Asian context, helps researchers develop empirically informed intervention methods for the management of protective and risk factors of suicide. METHODS In the current study, 2074 students (706 males), filled out the Meaning in Life Questionnaire, with subscales of Search for Meaning (MLQ-S) and Presence of Meaning (MLQ-P); the Future Disposition Inventory-24 (FDI-24), with subscales of Positive Focus (PF), Suicide Orientation (SO), and Negative Focus (NF); and the Beck Hopelessness Scale (BHS). These scales measure protective and risk factors that are linked to suicidal behaviors; while suicidal behaviors were measured by the Suicidal Behaviors Questionnaire-Revised (SBQ-R). Mediation analyses were performed to test the models with both the MLQ-S and MLQ-P as the mediators between a) hopelessness, as measured by BHS and suicidal behaviors; and b) PF, SO, and NF, as measured by FDI-24, and suicidal behaviors. RESULTS We found that only MLQ-P mediated the relation between hopelessness and suicidal behaviors; while both MLQ-P and MLQ-S mediated PF, SO, and NF (as measured by FDI-24), and suicidal behaviors, respectively. CONCLUSION Meaning in life, including both the presence of meaning in life and search for meaning, can be good protective factors against suicidal behaviors.BACKGROUND HIV testing plays a central role in the combat against HIV. We aimed to determine if the availability of HIV self-testing (HIVST) would increase the frequency of testing among men who have sex with men (MSM) attending university in China. METHODS A stepped wedge randomized controlled trial will be conducted in 4 provinces in China Chongqing, Guangdong, Shandong, and Tianjin. Eligibility assessment will include (1) male, aged 16 years or older, (2) university student (technical diploma and undergraduate students), (3) MSM (sexual behaviors including mutual masturbation, oral sex, and anal sex), (4) HIV negative, and (5) willing to provide informed consent. Participants will be randomly allocated to HIV self-testing intervention with free HIVST kits in every 30 days according to the intervention waiting lists with a computer-generated randomized sequence. All participants will complete a self-administrated online questionnaire onsite at baseline and 12-month follow-up and complete an online questionnaire at 4- and 8-month. The primary outcome is the effect of HIVST on HIV testing frequency. Secondary outcomes include the change in sexual behaviors and HIV incidence. DISCUSSION No previous study had measured the effect of social media based HIVST intervention on the change in HIV testing behaviors, sexual behaviors and incident HIV infection among MSM attending university in China. Findings from this study will provide evidence for further interventional practice promotions and prevention strategies scale-up, including HIV testing, pre-exposure prophylaxis (PrEP) or post-exposure prophylaxis (PEP), and sexual partner serosorting. TRIAL REGISTRATION Chinese Clinical Trial Registry ChiCTR1900020645. Registered 11 January 2019.BACKGROUND Early diagnosis of neonatal sepsis is essential to prevent severe complications and avoid unnecessary use of antibiotics. The mortality of neonatal sepsis is over 18%in many countries. https://www.selleckchem.com/products/6-aminonicotinamide.html This study aimed to develop a predictive model for the diagnosis of bacterial late-onset neonatal sepsis. METHODS A case-control study was conducted at Queen Sirikit National Institute of Child Health, Bangkok, Thailand. Data were derived from the medical records of 52 sepsis cases and 156 non-sepsis controls. Only proven bacterial neonatal sepsis cases were included in the sepsis group. The non-sepsis group consisted of neonates without any infection. Potential predictors consisted of risk factors, clinical conditions, laboratory data, and treatment modalities. The model was developed based on multiple logistic regression analysis. RESULTS The incidence of late proven neonatal sepsis was 1.46%. The model had 6 significant variables poor feeding, abnormal heart rate (outside the range 100-180 x/min), abnormal temperature (outside the range 36o-37.9 °C), abnormal oxygen saturation, abnormal leucocytes (according to Manroe's criteria by age), and abnormal pH (outside the range 7.27-7.45). The area below the Receiver Operating Characteristics (ROC) curve was 95.5%. The score had a sensitivity of 88.5% and specificity of 90.4%. CONCLUSION A predictive model and a scoring system were developed for proven bacterial late-onset neonatal sepsis. This simpler tool is expected to somewhat replace microbiological culture, especially in resource-limited settings.BACKGROUND Hyperuricemia is a major risk for non-alcoholic fatty liver disease. However, the mechanisms for this phenomenon are not fully understood. This study aimed to investigate whether microRNAs mediated the pathogenic effects of uric acid on non-alcoholic fatty liver disease. METHODS Microarray was used to determine the hepatic miRNA expression profiles of male C57BL/6 mice fed on standard chow diet, high fat diet (HFD), and HFD combined with uric acid-lowering therapy by allopurinol. We validated the expression of the most significant differentially expressed microRNAs and explored its role and downstream target in uric acid-induced hepatocytes lipid accumulation. RESULTS Microarray analysis and subsequent validation showed that miR-149-5p was significantly up-regulated in the livers of HFD-fed mice, while the expression was down-regulated by allopurinol therapy. MiR-149-5p expression was also significantly up-regulated in uric acid-stimulated hepatocytes. Over-expression of miR-149-5p significantly aggregated uric acid-induced triglyceride accumulation in hepatocytes, while inhibiting miR-149-5p ameliorated the triglyceride accumulation. Luciferase report assay confirmed that FGF21 is a target gene of miR-149-5p. Silencing FGF21 abolished the ameliorative effects of miR-149-5p inhibitor on uric acid-induced hepatocytes lipid accumulation, while overexpression of FGF21 prevented the lipid accumulation induced by miR-149-5p mimics. CONCLUSIONS Uric acid significantly up-regulated the expression of miR-149-5p in hepatocytes and induced hepatocytes lipid accumulation via regulation of miR-149-5p/FGF21 axis.

Long-term prognosis depends on the extent of renal involvement. Six months of follow-up is prudent to assess for disease relapse or remission. To evaluate the early outcomes and risk factors of reverse shoulder arthroplasty (RSA) in patients with rheumatoid arthritis (RA). A retrospective study was performed on RA patients who had undergone RSA between January 2016 and January 2018. Preoperative glenohumeral joint damage was evaluated according to two radiographic classification systems. The severity of joint damage was estimated using Larsen's method, while the Levigne-Franceschi method was used to assess the type of destruction. Further, we recorded intra- and postoperative complications. Visual Analogue Scale (VAS) was used to assess the degree of shoulder pain while shoulder function was evaluated with the American Shoulder and Elbow Surgeons (ASES) Shoulder Score. In addition, patients' subjective outcome and range of shoulder motion were recorded. Radiographs were taken and examined during the follow-up period. Paired t-test was used to determine the difference in measurement data between preoperative and the last follow-up. VAS was analyznd affect postoperative satisfaction.CD30 transmembrane receptor, a member of the tumor necrosis factor receptor family, is expressed in different lymphomas. Brentuximab vedotin (BV), a CD30 monoclonal antibody (Ab)-drug conjugate, is effective in CD30-positive lymphomas. However, the response to BV is not always correlated to CD30 expression detected by immunohistochemistry (IHC). The objectives of this study were to standardize and evaluate CD30 intensity by flow cytometry (FCM) in non-Hodgkin's lymphomas. Twelve centers analyzed 161 cases on standardized cytometers using normalized median fluorescence intensity (nMFI30) of three different Abs, of which one clone can recognize the same epitope as BV. FCM distinguished four groups of cases negative group (n = 110) which showed no expression with the three clones; high positive group (n = 13) which gave nMFI30 > 5% with all tested clones; dim positive group (n = 17) which showed nMFI30 > 1% with all tested clones and less then 5% for at least one; discordant group (n = 21) with positive and negative expression of the different clones. In consistency with the literature, CD30 was positive in all anaplastic large cell lymphomas, in some diffuse large B-cell lymphomas (DLBCL), and in other rare lymphomas. FCM results were concordant with those of IHC in 77% of cases. Discrepancies could be explained by clones-related differences, microenvironment, or intracytoplasmic staining. Interestingly, FCM was more sensitive than IHC in 11% of cases, especially in DLBCL. Multicenter standardized FCM of specific CD30 could improve case detection and extend the treatment of BV to various CD30-positive lymphomas. A body of literature reported associations between late-life general adiposity measures (eg, body mass index) and dementia. Little is known about the association of late-life body composition with dementia risk. We determined this association among cognitively normal participants from the Cardiovascular Health Study- Cognition Study. Body composition was assessed by dual-energy x-ray absorptiometry in 1994-1995. Dementia was ascertained at annual follow-up from 1998-1999 to 2013. Associations of body composition with incident dementia were assessed by the Fine-Gray model. Among 344 participants (mean age 78, 62.2% women), body composition was significantly different between men and women, despite similar body mass indexes (BMIs). Increased dementia risk was significantly associated with lower lean mass in men and marginally with low appendicular lean mass in women. Decreased lean mass was an indicator of increased dementia risk in older adults. Studies should test whether preventing lean mass loss in older adults reduces dementia risk. Decreased lean mass was an indicator of increased dementia risk in older adults. Studies should test whether preventing lean mass loss in older adults reduces dementia risk. Basing on the Demands-Resources and Individual-Effects (DRIVE) Model developed by Mark and Smith in 2008, the study aims to propose and test a multi-dimensional model that combines work characteristics, individual characteristics, and work-family interface dimensions as predictors of nurses' psychophysical health. Self-report questionnaires assessing work characteristics (effort; rewards; job demands; job control; social support), individual characteristics (socio-demographic characteristics; coping strategies; Type A behavioral pattern; Type D personality), work-family interface dimensions (work-family interrole conflict; job and life satisfaction), and health outcomes (psychological disease; physical disease) were completed by 450 Italian nurses. https://www.selleckchem.com/products/plerixafor-8hcl-db06809.html Logistic regression analyses and Hayes' PROCESS tool were used to test the proposed model by exploring main, moderating and mediating hypotheses. Findings confirmed the proposed theoretical framework including work characteristics, individual characteristics, and work-family interface dimensions as significant predictors of nurses' psychophysical disease. Specific main, moderating and mediating effects were found, providing a wide set of multiple risks and protective factors. The study allowed a broader understanding of nurses' work-related stress process, providing a comprehensive tool for the assessment of occupational health and for the definition of tailored policies and interventions in public healthcare organizations to promote nurses' wellbeing. The study allowed a broader understanding of nurses' work-related stress process, providing a comprehensive tool for the assessment of occupational health and for the definition of tailored policies and interventions in public healthcare organizations to promote nurses' wellbeing. After bone prosthesis replacement, M1-type macrophage polarization can be induced by titanium (Ti) particles and produce inflammatory, leading to osteolysis. Adipocyte-derived exosomes (ADEs) exert immune-modulatory impact on the macrophage, while whether it can inhibit the macrophage polarization induced by Ti is unclear. This study focuses on the M1-type macrophage and aims to determine the effect of ADEs on Ti-induced M1-type macrophage polarization in osteolytic mice and the involved mechanism. Ti particle-induced osteolysis mouse model was established and macrophages were isolated from the osteolysis site. The levels of NLRP3 and specific markers for M1-type macrophage were determined. ADEs isolated from adipocyte cell line 3T3-L1, or conditioned ADEs with low-expressed miR-34a isolated from 3T3-L1 transfected with miR-34a inhibitor were co-cultured with RAW 264.7 to determine their impact on the polarization of macrophage. ADEs reduced the M1-type macrophage polarization and caused the upregulation of miR-34a in macrophage of the osteolysis site of the osteolysis mouse model.

Objective To investigate the features of the full-field electroretinogram (FERG) in patients with ocular surface alkaline injury, and to clarify the clinical significance of FERG examination in alkaline ocular trauma. Methods Retrospective series of case study. A total of 22 patients with chemical ocular surface injury who were treated in the Department of Ophthalmology of Peking University Third Hospital from May 2018 to January 2020 were selected, including 20 males (25 eyes) and 2 females (2 eyes). The age ranged from 19 to 60 years old (average, 41). There were 17 eyes with alkaline ocular trauma, 7 eyes with thermal burn, and 3 eyes with acid ocular trauma. Seventeen contralateral healthy eyes in patients with unilateral mechanical trauma were used as controls. Fourteen alkaline trauma eyes with visual acuity records were further observed according to the degree of visual impairment. All patients were subjected to different flash intensity stimuli in accordance with a standard of the International Society for Clinical Electrophysiology of Vision for dark-adapted and light-adapted full-field FERG. One-way ANOVA and SNK-q was used for the comparison between groups. The unpaired t test was used for the comparison of patients with different vision. Results Compared with healthy eyes the injured eyes' amplitude of dark adaption FERG b-wave under the dark stimulation of 0.01 cd·s·m-2 in alkaline ocular trauma, thermal burn, acid ocular trauma was (135±85), (169±55), and (112±43) versus (341±53) μV, respectively; compared with healthy eyes, the differences were statistically significant (F=31.38; q=8.94, 5.70， 5.45；all P0.05) after alkaline ocular trauma. Conclusions By detecting the amplitude change of FERG wave form of chemical ocular trauma, in this study, the amplitude of FERG wave form in alkaline ocular trauma was generally decreased. It's suggested that alkaline ocular trauma can cause damage to the rod and cone systems of retinal. (Chin J Ophthalmol, 2020, 56 514-518).Objective To observe the effects of intravenous methylprednisolone pulse (IVMP) therapy on the recovery of visual acuity and its influencing factors in patients with the relapse of aquaporin (AQP) 4 antibody positive neuromyelitis optica related optic neuritis (NMO-ON). Methods Retrospective case series. Forty-eight eyes of 35 patients diagnosed as NMO-ON in the Neuro-ophthalmology Clinic of Beijing Tongren Hospital from September 2012 to April 2018 were included in this research. All patients were AQP4 antibody seropositive, and had clinical manifestations of acute optic neuritis, with a history of optic neuritis treated with glucocorticoids effectively. They received the treatment of IVMP 500 mg/d or 1 000 mg/d for 3 to 5 days. The post-treatment and pre-treatment visual acuities were compared. Improving four lines or more was considered as markedly effective, improving two or three lines as effective, and improving one line or no change or a decline as no effect. The impacts of age, visual acuity at onset,body seropositive. The effect of IVMP treatment at doses of 500 mg/d and 1 000 mg/d is similar. Furthermore, visual acuity less than 0.05 and more relapses reduce the efficacy in relapsed NMO-ON patients. (Chin J Ophthalmol, 2020, 56 509-513).Clinical visual electrophysiological examination is a method that can objectively reflect visual function. It has become one of the important methods of ophthalmological examination, and the operation process has strict specifications. This article introduces the history, formulation and content of international clinical visual electrophysiological examination standards, which will help ophthalmologists understand the importance of the standardization of the operation process, so as to better promote and standardize the clinical visual electrophysiological examination in China. ( Chin J Ophthalmol, 2020, 56 489-491).Vision is the receptive and cognitive process of converting light and pattern signals into nerve impulse signals. The main role of visual physiology is to elucidate the neural mechanism of vision. As an important part of visual physiology, visual electrophysiological examination, like electrocardiogram and electroencephalogram, is used to diagnose diseases through the bioelectrical phenomena generated during the activities of body organs and tissues. Since the founding of the People's Republic of China, remarkable achievements have been made in basic research, translational research and clinical research of visual physiology with more than 70 years of heritage and efforts. But there are still many unknown areas that need further exploration. Looking back at the development history will encourage us to forge ahead and make more contributions to visual physiology in China. Congratulations on the 70th anniversary of the founding of Chinese Journal of Ophthalmology. （Chin J Ophthalmol， 2020， 56 481-488）.Objective To observe the clinical effect of corneal staining in patients with corneal leucoma. Methods Restrospective case series study.Thirty eyes of 30 patients (17 males, 13 females) with corneal leucoma who underwent corneal interlamellar staining at Beijing Aier-Intech Eye Hospital from October 2014 to July 2018 were included. The mean age was 31.50±15.66 years. Postoperative follow-up was more than 1 year. https://www.selleckchem.com/screening/fda-approved-drug-library.html All the patients underwent appearance examination, anterior segment examination with a slit lamp, B-scan examination and anterior segment OCT examination preoperatively and postoperatively. The effect of corneal staining, patient satisfaction and the incidence of complications were investigated. Results The corneal epithelium of all the patients healed completely within 1-3 days after operation. The mean follow-up period was 30.68±18.02 months (range, 12.37-58.10 months). During the postoperative follow-up period, no staining permeation or inflammatory reaction in the anterior chamber occurred. The corneal color and appearance were well maintained in 18 patients (72.0%). Seven patients (28.0%) showed mild corneal color-fading. One patient was treated with enucleation and orbital hydroxyapatite implantation because of eye atrophy and corneal banding degeneration caused by the primary disease at 4 years after operation. The surgeon was satisfied with the improvement of the appearance of all cases; 22 patients (88.0%) were satisfied with the postoperative appearance. No significant complications were observed in all the cases. Conclusions Corneal interlamellar staining is one of best choices for the treatment of corneal leucoma. It has advantages of quick postoperative recovery, long-standing color staining and good cosmetic effect. The operation is simple and easy to carry out and there is no obvious damage to eye tissues. (Chin J Ophthalmol, 2020, 56465-472).

© 2020 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.WHAT IS KNOWN ON THE SUBJECT? Understanding experiences of acute care by persons with mental health problems is vital for improving these experiences through the development of different parts of the care delivery and its facilities. Literature has extensively addressed experiences of persons with mental health problems in acute care settings. Yet, there is a paucity of studies that aggregate and organize these findings in presenting development-oriented solutions for the improvements of these experiences. WHAT THE PAPER ADDS TO EXISTING KNOWLEDGE? Acute care can be understood through patients' experiences of structure (such as setting, staff and resources); process (such as communication and interpersonal relations); and outcome (such as satisfaction and post-discharge well-being and health) and suggests improvements in these domains. The paper illuminates that previous literature has mainly captured negative experiences of acute care by persons with mental health problems, and suggests diverting the focus tuthors. Journal of Psychiatric and Mental Health Nursing published by John Wiley & Sons Ltd.Independent or parallel evolution of similar traits is key to understanding the genetics and limitations of adaptation. Adaptation from the same genetic changes in different populations defines parallel evolution. Such genetic changes can derive from standing ancestral variation or de novo mutations and excludes instances of adaptive introgression. In this issue of Molecular Ecology, Walden et al.(2020) investigate the scale of parallel climate adaptation from standing genetic variation between two North American Arabidopsis lyrata lineages, each formed by a distinct evolutionary history during the last glacial cycle. By identifying adaptive variants correlated with three ecologically significant climatic gradients, they show that instead of the same genetic variants or even genes, parallel evolution is only observed at the level of biological processes. The evolution of independent adaptive variants to climate in two genetically close lineages is explained by their different post-glacial demographic histories. Separate glacial refugia and strong population bottlenecks were probably sufficient to change the landscape of shared allele frequencies, hindering the possibility of parallel evolution. © 2020 John Wiley & Sons Ltd.Salinomycin ( 1 ) exhibits a large spectrum of biological activities including the capacity to selectively eradicate cancer stem cells (CSC), making it and its derivatives promising candidates for the development of drug leads against CSC. We have previously shown that salinomycin and its C20-propargylamine derivative (Ironomycin, 2 ) accumulate in lysosomes and sequester iron in this organelle. We hereby report a library of salinomycin derivatives, including products of C20-amination, C1-esterification, C9-oxidation and C28-dehydration. We have evaluated the biological activity of these compounds against transformed human mammary epithelial HMLER CD24 low /CD44 high cells, a well-established model of breast CSC, and HMLER CD24 high /CD44 low cells deprived of CSC properties. Unlike other structural alterations, derivative 4 , which displays a cyclopropylamine at position C20, showed a strikingly low IC 50 value of 23 nM against HMLER CD24 low /CD44 high cells. This study provides highly selective molecules to target the CSC niche, a potential interesting advance for drug development to prevent cancer resistance. © 2020 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.In this paper, chloro (-Cl) group was substituted for methyl (-CH 3 ) moiety at the kink position and witnessed a drastic modification in the phase structure of a bent-shaped molecule ( 1-4 to 1-18 ).  An unusual stabilization of cubic blue phase (BP) over a wide range of 16.4 °C has been observed. https://www.selleckchem.com/products/lificiguat-yc-1.html The two homologues in this series ( 1-12 and 1-14 ) exhibits an interesting phase sequence consisting of BPI/II, N*, TGBA, SmA and SmX. The higher homologues ( 1-16 and 1-18 ) stabilize the SmX phase enantiotropically in the entire temperature range. Crystal structure analysis approved the bent molecular architecture with a bent angle of 148° and revealed the presence of two different molecular conformations in an asymmetric unit of compound 1-4 . DFT study corroborated that the -Cl moiety at the central core of the molecule leads to an increase in the dipole moment along the transverse direction which in turn facilitates the unusual stabilization of frustrated structures. Crystal polymorphism has been evidenced in three homologues ( 1-10 , 1-12 and 1-14 ) of the series. On the application of mechanical pressure via grinding, the compound 1-10 transforms from bright yellow crystalline solid to dark orange-green amorphous solid which reversed upon dropwise addition of dichloromethane indicating reversible mechanochromism  of compounds. Excellent thermochromic behaviour has been observed for compound 1-10 with a controlled temperature-color combination. © 2020 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.Cancer stem cells (CSC) constitute a subpopulation of cells in solid tumors that is responsible for resistance to conventional chemotherapy, metastasis and cancer relapse. The natural product Salinomycin can selectively target this cell niche by directly interacting with lysosomal iron, taking advantage of upregulated iron homeostasis in CSC. Here, we identify inhibitors of the divalent metal transporter 1 (DMT1) that selectively target CSC by blocking lysosomal iron translocation. This leads to lysosomal iron accumulation, production of reactive oxygen species and cell death with features of ferroptosis. DMT1 inhibitors selectively target CSC in primary cancer cells and circulating tumor cells, demonstrating the physiological relevance of this strategy. Taken together, this opens up opportunities to tackle unmet needs in anti-cancer therapy. © 2020 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.Isotretinoin is a safe and useful medication for acne management. Adverse effects are mostly related to cutaneous and mucous membranes. We present a case of a 24-year-old female patient who was on treatment with isotretinoin for acne vulgaris Grade 4. After 6 months of treatment, the patient presented with localized patch of hair loss. Beginning of alopecia areata in patients with acne vulgaris could be regarded as a side effect of retinoids due to anti-acne therapy. The exact mechanism by which retinoids cause hair loss is not known. © 2020 Wiley Periodicals, Inc.

This paper identifies the main sediment sources to the Beaudet Reservoir in Quebec (Canada) using sediment fingerprinting. The reservoir, which is built on the Bulstrode River and provides drinking water to Victoriaville, has decreased in capacity by 35% in the past 35 years. This study provides new data on fingerprinting in large and complex watersheds, a first in the province of Quebec. Nine sampling sites on the Bulstrode River and its three main tributaries were selected and five sampling campaigns were conducted. Samples from river bank profiles and adjacent fields, along with suspended sediments, were collected. All samples were sieved to 2 mm and analyzed for 137Caesium, 15 geochemical elements and sieved to 63 μm for color analysis. Source classification, based on an ANOVA test to verify the independence hypothesis and iterative linear discriminant analysis to optimize the ratio of inter-group/within-group variability, resulted in four sample classes agricultural soils, forested soils, stream bank bottom and stream bank top. A Kruskal-Wallis H test then identified 21 out of the 32 tracers with p value less then 0.05. The linear discriminant analysis led to a set of 14 tracers, namely 137Cs and 13 color coefficients with a discriminating result of 94%. That combination of 137Cs and color coefficients proved to be a cost-effective fingerprint. Based on MixSIAR modeling results, this sediment fingerprinting study has demonstrated that the main sediment sources varied within the watershed but, generally, forested soil particles dominated (33 to 49%), then agricultural soils (43 to 50%) reflecting the land use changes, followed by stream bank bottoms (82%) at the Beaudet Reservoir.Hydrogen isotope (δ2H) analysis has been routinely used as an ecological tracer for animal movement and migration, yet a biochemical understanding of how animals incorporate this element in the synthesis of tissues is poorly resolved. Here, we apply a new analytical tool, amino acid (AA) δ2H analysis, in a controlled setting to trace the influence of drinking water and dietary macromolecules on the hydrogen in muscle tissue. We varied the δ2H of drinking water and the proportions of dietary protein and carbohydrates with distinct hydrogen and carbon isotope compositions fed to house mice among nine treatments. Our results show that hydrogen in the non-essential (AANESS) and essential (AAESS) AAs of mouse muscle is not readily exchanged with body water, but rather patterns among these compounds can be described through consideration of the major biochemical pathway(s) used by organisms to synthesize or route them from available sources. Dietary carbohydrates contributed more hydrogen than drinking water to the synthesis of AANESS in muscle. While neither drinking water nor dietary carbohydrates directly contributed to muscle AAESS, we did find that a minor but measurable proportion (10-30%) of the AAESS in muscle was synthesized by the gut microbiome using hydrogen and carbon from dietary carbohydrates. https://www.selleckchem.com/products/lificiguat-yc-1.html δ2H patterns among individual AAs in mice muscle are similar to those we previously reported for bacteria, which provides additional support that this approach may allow for the simultaneous analysis of different AAs that are more influenced by drinking water (AANESS) versus dietary (AAESS) sources of hydrogen. To evaluate the 72-month clinical results of trabectome surgery (TOM) in patients with primary open-angle glaucoma (POAG), secondary OAG and childhood glaucoma. A total of 305 eyes from 249 glaucoma patients were analyzed in the current retrospective single-center study. Kaplan-Meier analysis was performed using three criteria criterion A (postoperative intraocular pressure [IOP] ≤ 21mmHg and ≥ 20% reduction from baseline IOP); criterion B (postoperative IOP ≤ 18mmHg and ≥ 20% reduction from baseline IOP); and criterion C (postoperative IOP ≤ 16mmHg and ≥ 20% reduction from baseline IOP). The changes in IOP, medication score, success probability, results of the multivariate analysis for success and failure risk factors, and complications were analyzed. The baseline IOP in all glaucoma patients decreased from 29.2 ± 9.8mmHg with a 5.3 ± 1.7 medication score to 16.4 ± 5.8mmHg (- 43.8%) with a 4.2 ± 1.5 medication score at 72months (p < 0.01). The success probabilities in all cases for 72months based on criterion A, B, and C were 44%, 35%, and 17%, respectively. For criterion A, no significant differences were found in the success probability according to the glaucoma subtype for 72months. The combined surgical procedure significantly decreased the failure risk (hazard ratio [HR] 0.59). On the other hand, the presence of POAG (HR 1.6) and a history of past selective laser trabeculoplasty (HR 2.2) significantly increased failure risk. One patient (0.3%) demonstrated endophthalmitis after TOM but recovered through appropriate treatment. At the 72-month time point, approximately half of the glaucoma patients maintained an IOP ≤ 21mmHg with ≥ 20% IOP reduction. TOM is a safe surgery but may not yield sufficient IOP reduction in patients who have received SLT or have POAG. At the 72-month time point, approximately half of the glaucoma patients maintained an IOP ≤ 21 mmHg with ≥ 20% IOP reduction. TOM is a safe surgery but may not yield sufficient IOP reduction in patients who have received SLT or have POAG.Calcified lesion is a risk factor for adverse events, even in the drug-eluting stent (DES) era. Recently, drug-coated balloon (DCB) has been shown to have favourable results for in-stent restenosis and small vessels, but its results for calcified lesions are unknown. This study aimed to clarify the rotational atherectomy (RA) and DCB results for calcified lesions of nonsmall vessels. A total of 194 consecutive de novo lesions from 165 cases underwent RA for calcified lesions of nonsmall vessels between January 2016 and August 2018 in a single centre. Overall, 8 cases/10 lesions were excluded because of RA followed plain old balloon angioplasty (POBA). Remaining lesions were grouped into the DES (88 cases/104 lesions) and DCB (69 cases/80 lesions) groups and then compared retrospectively. The primary endpoint was post-discharge major adverse cardiovascular events (MACE) at 1 year, and it was defined as cardiac death, noncardiac death, target-vessel-related myocardial infarction, target lesion revascularization (TLR), and major bleeding (BARC ≥ type 3).

Additionally, GJ treatment showed the dose-dependent inhibition of RANKL-induced osteoclast formation. Furthermore, GJ treatment downregulated the RANKL-induced cytokine production in RAW 264.7 cells. In summary, GJ ameliorated periodontitis-induced alveolar bone loss via inhibiting transcription factors including nuclear factor-κB, c-fos and extracellular signal-regulated kinase signalling. Therefore, GJ might be a therapeutic option for treating periodontitis. In summary, GJ ameliorated periodontitis-induced alveolar bone loss via inhibiting transcription factors including nuclear factor-κB, c-fos and extracellular signal-regulated kinase signalling. Therefore, GJ might be a therapeutic option for treating periodontitis. To determine the prevalence of developmental defects of the enamel (DDE) in premolars whose infected predecessors were submitted to pulp therapy with antibiotic paste or extractions due to pulp necrosis. A cross-sectional study with a consecutive sample consisting of children and adolescents who presented with fully erupted premolars, was evaluated. Data were collected by dental examinations, in which the modified DDE index was applied. Dental records were evaluated and three groups of premolars were determined according to the clinical history of predecessors GCTZ with pulp necrosis and treated with CTZ (chloramphenicol, tetracycline, zinc oxide and eugenol) paste; GE with pulp necrosis and treated by extraction; GH healthy and physiologically exfoliated. Descriptive analysis and a logistic regression (p <0.05) were performed. The study included 1017 premolars, DDE was present in 22.5%. Premolars belonging to the GE group presented higher odds of DDE (odds ratio (OR) = 3.52, 95% CI2.29-5.40) than those of GCTZ group (OR = 2.43, 95% CI1.51-3.91) and GH group (p <0.01). Enamel defects were more frequent in maxillary premolars (OR = 3.22, 95% CI1.65-6.27, OR = 3.39, 95% CI1.67-6.90, OR = 2.90, 95% CI1.48-5.66 and OR = 3.10, 95% CI1.54-6.23). The prevalence of enamel defects was higher in premolars whose predecessors were removed because of necrosis, followed by those treated with CTZ paste and those that were healthy by the time exfoliation occurred. The prevalence of enamel defects was higher in premolars whose predecessors were removed because of necrosis, followed by those treated with CTZ paste and those that were healthy by the time exfoliation occurred. This study evaluated repair protocols of a non-aged and aged bulk-fill composite in terms of bond strength and leakage. Ninety-six bulk-fill resin specimens were constructed; half were submitted to thermocycling. Specimens were divided into six groups (n = 16) according to the repair treatments CG no repair (control group); Ad adhesive; DbAd abrasion with diamond bur + adhesive; SbAd sandblasting + adhesive; DbSiAd abrasion with diamond bur + silane + adhesive; and SbSiAd sandblasting + silane + adhesive. Resin blocks were bonded to the treated surfaces to simulate repair, and the specimens were submitted to microtensile bond strength testing. The failure area was evaluated under a stereomicroscope (40X magnification), and leakage after specimen immersion in silver nitrate solution for 24 h was evaluated under a microscope (200X magnification). Three-way ANOVA (surface treatment, chemical agent, aging) and Tukey's test were performed. Ad and DbAd groups showed the lowest bond strengths, while Ad was the only group negatively influenced by aging. The other groups were statistically similar to the CG in both conditions. All groups exhibited leakage, but groups without silane presented a greater percentage of leakage, mainly when diamond burs were used. Thermocycling did not influence leakage, nor did surface treatment in groups with silane. For composite repair, the use of silane is recommended, mainly when diamond burs are used as a mechanical surface treatment. For composite repair, the use of silane is recommended, mainly when diamond burs are used as a mechanical surface treatment. To assess the mandibular cortical width (MCW) and morphology of the mandibular inferior cortex (MIC) on panoramic views from a large sample of males and females in various age groups by using an automated morphometric grading system for assisting osteoporosis screening. Furthermore, possible predictors and concrete cut-off values to identify the risk for osteoporosis were evaluated. MCW, MIC, tooth loss (TL), and alveolar bone loss (ABL) were retrospectively evaluated in 700 panoramic images from dental patients in Hong Kong using commercially available software. To estimate possible predictors for identifying the risk of osteoporosis, age, TL, and ABL were evaluated with the receiver operating characteristic (ROC) curves for each gender separately. The age groups 60s (sixties), 70s and 80s showed statistically significant gender differences. For example, a smaller MCW and more MIC Class 3 were found in females. Furthermore, females exhibited a statistically significant increase in TL in the age groups 50 years and above. In males, age, TL or ABL did not correlate with MCW, whereas in females it statistically significantly did. Meanwhile, the correlation between ABL and MCW and MIC was weak for both genders. Concrete cut-off values to identify patients at risk of osteoporosis were 60.15 years and 3.5 missing teeth in females, and 72.55 years in males. Age and tooth loss were related to MCW and MIC in the population investigated. An age of ≥60 as well as more than 3.5 teeth lost seem to be indicators for a risk of osteoporosis in Chinese females based on panoramic views using artificial-intelligence-based software. Age and tooth loss were related to MCW and MIC in the population investigated. An age of ≥60 as well as more than 3.5 teeth lost seem to be indicators for a risk of osteoporosis in Chinese females based on panoramic views using artificial-intelligence-based software. Oral mucositis (OM) is the most frequent side effect of radiation. Selenium deficiency leads to increased levels of free oxygen radicals and the selenium level tends to fall during radiotherapy. https://www.selleckchem.com/products/Aloxistatin.html Hence, in this double-blind randomised controlled clinical trial, the effect of selenium was assessed in patients receiving radiation. Patients with head and neck cancer who were candidates to receive radiation were instructed to use selenium 200 mcg tablets twice daily. The grade of OM was evaluated by the World Health Organization (WHO) grading system on a weekly basis. The selenium level was measured at baseline and at the end of the radiation. Seventy-one patients with head and neck cancer (37 in the selenium group, 34 in the placebo group) were enrolled in the study. The cumulative incidence of OM (grade 1-4) was 97.3% in the selenium and 100% in placebo group (p value 0.79), and difference in the mean serum selenium level at the end of radiation was not statistically significant between the two groups (p value 0.

Self-assessment was an effective way to assess student writing development. Items not meeting the performance benchmark may illuminate the need for further writing development. Faculty recommendations for using self-assessment and facilitating writing development are offered. Self-assessment was an effective way to assess student writing development. Items not meeting the performance benchmark may illuminate the need for further writing development. Faculty recommendations for using self-assessment and facilitating writing development are offered. Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) can spread rapidly in nursing homes and long-term care (LTC) facilities. Symptoms-based screening and manual contact tracing have limitations that render them ineffective for containing the viral spread in LTC facilities. Symptoms-based screening alone cannot identify asymptomatic people who are infected, and the viral spread is too fast in confined living quarters to be contained by slow manual contact tracing processes. We describe the development of a digital contact tracing system that LTC facilities can use to rapidly identify and contain asymptomatic and symptomatic SARS-CoV-2 infected contacts. A compartmental model was also developed to simulate disease transmission dynamics and to assess system performance versus conventional methods. We developed a compartmental model parameterized specifically to assess the coronavirus disease (COVID-19) transmission in LTC facilities. The model was used to quantify the impact of asymptomatic transmive tool to control COVID-19 outbreaks in LTC facilities. As facilities prepare to relax restrictions and reopen to outside visitors, such tools will allow them to do so in a surgical, cost-effective manner that controls outbreaks while safely giving residents back the life they once had before this pandemic hit.In the context of motor imagery, electroencephalography (EEG) data vary from subject to subject such that the performance of a classifier trained on data of multiple subjects from a specific domain typically degrades when applied to a different subject. While collecting enough samples from each subject would address this issue, it is often too time-consuming and impractical. To tackle this problem, we propose a novel end-to-end deep domain adaptation method to improve the classification performance on a single subject (target domain) by taking the useful information from multiple subjects (source domain) into consideration. Especially, the proposed method jointly optimizes three modules, including a feature extractor, a classifier, and a domain discriminator. The feature extractor learns the discriminative latent features by mapping the raw EEG signals into a deep representation space. A center loss is further employed to constrain an invariant feature space and reduce the intrasubject nonstationarity. Furthermore, the domain discriminator matches the feature distribution shift between source and target domains by an adversarial learning strategy. Finally, based on the consistent deep features from both domains, the classifier is able to leverage the information from the source domain and accurately predict the label in the target domain at the test time. To evaluate our method, we have conducted extensive experiments on two real public EEG data sets, data set IIa, and data set IIb of brain-computer interface (BCI) Competition IV. The experimental results validate the efficacy of our method. Therefore, our method is promising to reduce the calibration time for the use of BCI and promote the development of BCI.An algorithm is proposed to determine output feedback policies that solve finite-horizon linear-quadratic (LQ) optimal control problems without requiring knowledge of the system dynamical matrices. To reach this goal, the Q-factors arising from finite-horizon LQ problems are first characterized in the state feedback case. It is then shown how they can be parameterized as functions of the input-output vectors. A procedure is then proposed for estimating these functions from input/output data and using these estimates for computing the optimal control via the measured inputs and outputs.Constrained spectral clustering (SC) based on pairwise constraint propagation has attracted much attention due to the good performance. All the existing methods could be generally cast as the following two steps, i.e., a small number of pairwise constraints are first propagated to the whole data under the guidance of a predefined affinity matrix, and the affinity matrix is then refined in accordance with the resulting propagation and finally adopted for SC. Such a stepwise manner, however, overlooks the fact that the two steps indeed depend on each other, i.e., the two steps form a ``chicken-egg'' problem, leading to suboptimal performance. To this end, we propose a joint PCP model for constrained SC by simultaneously learning a propagation matrix and an affinity matrix. Especially, it is formulated as a bounded symmetric graph regularized low-rank matrix completion problem. https://www.selleckchem.com/products/pd123319.html We also show that the optimized affinity matrix by our model exhibits an ideal appearance under some conditions. Extensive experimental results in terms of constrained SC, semisupervised classification, and propagation behavior validate the superior performance of our model compared with state-of-the-art methods.This article focuses on the observer-based quasi-synchronization problem of delayed dynamical networks with parameter mismatch under impulsive effect. First, since the state of each node is unknown in the real situation, the state estimation strategy is proposed to estimate the state of each node, so as to design an appropriate synchronization controller. Then, the corresponding controller is constructed to synchronize the slave nodes with their leader node. In this article, we take the impulsive effect into consideration, which means that an impulsive signal will be applied to the system every so often. Due to the existence of parameter mismatch and time-varying delay, by constructing an appropriate Lyapunouv function, we will eventually obtain a differential equation with constant and time-varying delay terms. Then, we analyze its trajectory by introducing the Cauchy matrix and prove its boundedness by contradiction. Finally, a numerical simulation is presented to illustrate the validness of obtained results.

Hypertension and heart failure are common conditions in older people. Comorbidity, together with aging, is commonly associated with frailty, which is a cause of a worse prognosis, more hospitalizations, increased dependency, and mortality. Despite being increasingly common conditions, data on the prevalence and influence of frailty in hypertensive older patients with HF are lacking. This may be due to the multidimensional aspects of frailty and the differing tools used to evaluate it. Nevertheless, in clinical practice, it is common to see frail hypertensive patients with HF but the specific characteristics of this group of patients, including multimorbidity and frailty, and the lack of data from registries or randomized clinical trials make the diagnosis and management of these patients more difficult than in those of other ages. This review focuses on what is known and on where future investigations should focus in this common but unclear situation.In Pakistan, there is limited evidence for the levels and relationship of 25 (OH) Vitamin D (25(OH)D) status in pregnant women and their newborns, while the association between maternal 25(OH)D and newborn anthropometric measurements remains unexplored. https://www.selleckchem.com/ Sociodemographic data were collected from 213 pregnant mothers during their visit to a tertiary care hospital at the time of childbirth. Anthropometric measurements were performed on all mothers and their newborns and blood samples collected from both for 25(OH)D levels. Participants were classified into two groups according to their 25(OH)D status sufficient (25(OH)D ≥50 nmol L-1 ) and deficient (25(OH)D 0.05). Our study shows a high prevalence of 25(OH)D deficiency in pregnant women and their newborns and a strong positive association between maternal and newborn 25(OH)D levels. Findings of this study indicate the importance of maintaining sufficient 25(OH)D levels during pregnancy. Our aim was to use epidemiological data to determine the incidence of soccer-related head injuries in children aged 5-14 years who presented at emergency departments (EDs) or were admitted in hospitals in Victoria, Australia. ED presentation and hospital admission de-identified aggregate data were from the Victorian Injury Surveillance Unit. Soccer participation data were compared with the soccer-related head injury data to determine the incidence of this injury among these children. The incidence of ED presentations was 0.17% of children participating in soccer during the study period (financial years 2011-2012 to 2015-2016). The 10-14-years age group presented with more head injuries than the 5-9-years age group. For the admissions data, soccer had a significantly lower (P = 0.0379) incidence of head injury when compared with 'sport as a whole'. The low incidence of soccer-related head injuries presenting to an ED or admission to hospital is consistent with international findings. The low incidence of soccer-related head injuries presenting to an ED or admission to hospital is consistent with international findings. Enteropathic spondyloarthritis (ESpA) and inflammatory bowel diseases (IBD) have high impact on physical and psychological health but health-related quality of life (HRQoL) has never been evaluated in ESpA patients. Cross-sectional multidisciplinary study was performed to evaluate HRQoL, state of health, and well-being in IBD and ESpA patients. Consecutive IBD and ESpA outpatients were enrolled. Disease activity, inflammatory parameters, function, and quality of life (EuroQol questionnaire) were assessed at visit time and compared with 12 months ago. Two hundred fifty-three IBD patients were evaluated. Ninety-five patients met inclusion criteria. ESpA was established in 65.3% IBD patients. Most ESpA patients had discreet or good health perception (65.3% and 22.5%, respectively), similar to IBD group (64.6% and 20.7%, respectively). In both groups, no patients had exceptional state of general well-being. Compared with previous 12 months, ESpA group showed improved state of health in 12% of patients, worsening in 28% and stable state of health in 60%. Similar results were obtained in IBD group. Emotional and psychological problems (anxiety, depression, and feeling of loneliness and isolation) were reported In ESpA patients, these feelings were observed in 58.1%, 40.57%, and 29% of cases, respectively; IBD patients showed slightly lower percentage. More than half of ESpA and IBD patients reported an embarrassment about their condition and worry about disease's future progression and physical pain. Well-being, quality of life, and psychological problems were described in ESpA and IBD patients. Disease management should include also social, mental, and psychological impacts, in terms of QoL. Well-being, quality of life, and psychological problems were described in ESpA and IBD patients. Disease management should include also social, mental, and psychological impacts, in terms of QoL. The emergence and transmission of tigecycline- and carbapenem-resistant Klebsiella pneumoniae (TCRKP) have become a major concern to public health globally. Here, we investigated the molecular epidemiology and mechanisms of tigecycline resistance in carbapenem-resistant Kpneumoniae (CRKP) isolates. Forty-five non-duplicate CRKP isolates were collected from January 2017 to June 2019. We performed antimicrobial susceptibility tests, multilocus sequence typing (MLST), and pulsed-field gel electrophoresis (PFGE). PCR and DNA sequencing were performed for the detection and mutation analysis of acrR, oqxR, ramR, rpsJ, tet(A), and tet(X) genes, which are related to tigecycline resistance. The expression levels of efflux pump genes acrB and oqxB and their regulator genes rarA, ramA, soxS, and marA were assessed by quantitative real-time PCR. The resistance rate to tigecycline in CRKP isolates was 37.8% (17/45). K pneumoniae ST307 was a predominant clone type (70.6%, 12/17) among the TCRKP isolates. The expression levels of acrB (P<.001) and marA (P=.009) were significantly higher in the tigecycline-resistant group than in the tigecycline-intermediate and tigecycline-susceptible groups. Increased expression of acrB was associated with marA expression (r=0.59, P=.013). We found that the activated MarA-induced overexpression of AcrAB efflux pump plays an important role in the emergence of tigecycline resistance in CRKP isolates. We found that the activated MarA-induced overexpression of AcrAB efflux pump plays an important role in the emergence of tigecycline resistance in CRKP isolates.