In two patients with intact AV conduction, AAI(R) pacing resolved further documentation of CAP. Conclusions CAP predominantly occurs during sensor-driven atrial pacing that competes with intrinsic atrial events falling in PVARP. Inactivation of the activity sensor or change to atrial-based pacing modes (AAI/R) appears to effectively prevent induction of device-induced atrial proarrhythmia. Ultimately, a corrective algorithm is needed to avoid CAP-induced proarrhythmia.Background As a result of the COVID-19 outbreak, hygiene regulations have been revised and hand sanitation has been intensified. Objective To investigate the onset of hand eczema during the COVID-19 pandemic in healthcare workers (HCWs) directly involved in intensive care of COVID-19 patients and HCWs without direct contact with COVID-19 patients. Hereby, we aim at increasing awareness about occupational hand eczema and preventive measures that can be adopted. Method A survey was distributed amongst 114 HCWs at a single surgical centre and at a COVID-19 intensive care unit of the university hospital Ludwig Maximilian University Munich, Germany. Participants were questioned about the daily frequency of hand hygiene prior to and during the pandemic. Participants self-reported the onset of hand eczema and associated symptoms. https://www.selleckchem.com/products/ykl5-124.html Results Our study revealed a significant increase in hand washing, disinfection, and use of hand cream across all participants (P-value less then .001), regardless of having direct contact with COVID-19 patients. A high prevalence of symptoms associated with acute hand dermatitis of 90.4% was found across all HCWs, whereas hand eczema itself was underreported (14.9%). Conclusion The increase in hand sanitation during the COVID-19 pandemic impairs the skin of the hands across all HCWs, independent of direct intensive care of affected patients.Background Retrograde peri-implantitis (RPI) is a rapidly progressing periapical infection that forms around the implant apex. It is usually associated with sites adjacent to teeth with apical lesions; previous endodontic failures, retained root fragments, etc. This study aimed to study the incidence of RPI in sites with a history of apical surgeries. Methods Patients with sites treated for both apicoectomy and implant placement presenting to the University of Michigan School of Dentistry from 2001 to 2016 were screened. A total of 502 apicoectomies were performed, only 25 of these fit the predetermined eligibility criteria and were thus included in this retrospective analysis. Results Implants that were placed in sites with a previous apical surgery had a cumulative survival rate of 92%. The incidence of peri-implantitis was 8%, while the incidence of RPI was 20%. There was an increased trend for RPI in cases where the cause of extraction was persistent apical periodontitis (35.7%), but this increase didn't reach the level of statistical significance (P = 0.061). Conclusion Implants placed in sites with previous apical surgery are not at an increased risk of implant failure or RPI.Purpose Clinical studies in radiation therapy with conventional fractionation show a reduction in the tumor control probability (TCP) with an increase in the total and hypoxic tumor volumes. The main objective of this article is to derive an analytical relationship between the TCP and the hypoxic and total tumor volumes. This relationship is applied to clinical data on the TCP reduction with increasing total tumor volume and, also, dose escalation to target tumor hypoxia. Methods The TCP equation derived from the Poisson probability distribution predicts that both (a) an increase in the number of tumor clonogens and (b) an increase in the average cell surviving fraction are the factors contributing to the loss of local control. Using asymptotic mathematical properties of the TCP formula and the linear quadratic (LQ) cell survival model with two levels of hypoxic and oxygenated cells, we separated the TCP dependence on the total and hypoxic tumor volumes. The predicted trends in the local control as a functioniple, be escalated by a factor equal to the oxygen enhancement ratio (OER). The theoretically required hypoxia-targeted dose escalation could be as large as 100% because it has been estimated that hypoxic tumor regions may have an OER = 2 for conventional fractionation. However, our results indicate that clinically acceptable values of the TCP would require much lower hypoxia-targeted dose escalation ( less then 50%) when the effects of total and hypoxic tumor volumes are taken into account. Conclusions The reported studies and models suggest that the effect of total tumor volume on the TCP is negligible for oxygenated head and neck and non-small cell lung tumors treated with conventional fractionation. According to our simulations, the volume effects in the TCP observed in clinical studies are defined primarily by the hypoxic volume. This information can be useful for the analysis of treatment outcomes and the dose escalation to target tumor hypoxia.Amazonian droughts are increasing in frequency and severity. However, little is known about how this may influence species-specific vulnerability to drought across different ecosystem types. We measured 16 functional traits for 16 congeneric species from six families and eight genera restricted to floodplain, swamp, white-sand or plateau forests of Central Amazonia. We investigated whether habitat distributions can be explained by species hydraulic strategies, and if habitat specialists differ in their vulnerability to embolism that would make water transport difficult during drought periods. We found strong functional differences among species. Nonflooded species had higher wood specific gravity and lower stomatal density, whereas flooded species had wider vessels, and higher leaf and xylem hydraulic conductivity. The P50 values (water potential at 50% loss of hydraulic conductivity) of nonflooded species were significantly more negative than flooded species. However, we found no differences in hydraulic safety margin among species, suggesting that all trees may be equally likely to experience hydraulic failure during severe droughts. Water availability imposes a strong selection leading to differentiation of plant hydraulic strategies among species and may underlie patterns of adaptive radiation in many tropical tree genera. Our results have important implications for modeling species distribution and resilience under future climate scenarios.

There is currently no established injury criterion for the spine in compression with lateral load components despite this load combination commonly contributing to spinal injuries in rollover vehicle crashes, falls and sports. This study aimed to determine an injury criterion and accompanying tolerance values for cervical spine segments in axial compression applied with varying coronal plane eccentricity. Thirty-three human cadaveric functional spinal units were subjected to axial compression at three magnitudes of lateral eccentricity of the applied force. Injury was identified by high-speed video and graded by spine surgeons. Linear regression was used to define neck injury tolerance values based on a criterion incorporating coronal plane loads accounting for specimen sex, age, size and bone density. Larger coronal plane eccentricity at injury was associated with smaller resultant coronal plane force. https://www.selleckchem.com/products/rk-24466.html The level of coronal plane eccentricity at failure appears to distinguish between the types of injuries sustained, with hard tissue structure injuries more common at low levels of eccentricity and soft tissue structure injuries more common at high levels of eccentricity. There was no relationship between axial force and lateral bending moment at injury which has been previously proposed as an injury criterion. These results provide the foundation for designing and evaluating strategies and devices for preventing severe spinal injuries.Adipose-derived mesenchymal stem cells (hADMSC) retaining proliferation and multi-differentiation potential may support the central nervous system (CNS) regeneration. Multipotency of MSC may result in both desirable and undesirable cells, post-transplantation. A better strategy to attain desired cells may be in vitro commitment of hADMSCs to uni-/bi- potent neural progenitor cells (NPCs), prior to transplantation. Derivation of stable NPCs may require a suitable niche eliciting proliferation and differentiation signals. The present study designed a biomimetic niche comprising insoluble fibrin supported adhesion matrix and exogenously added growth factors (GFs) for deriving different neural cells and established the role of Notch and Wnt signals for proliferation and differentiation of hADMSCs, respectively. The stable transformation of hADMSCs into neurospheres (NS) comprising Nestin+ve NPCs was achieved consistently. Slight modifications of niche enable differentiation of NS to NPCs; NPCs to neurons; NPCs to oligodendrocyte progenitor cells (OPCs); and OPCs to oligodendrocytes (OLG). Fibrin plays a crucial role in the conversion of hADMSC to NS and NPCs to OPCs; but, not essential for OPC to OLG maturation. Co-survival and cell-cell interaction of NPC derived neurons and OPCs promoting OLG maturation is illustrated. The designed biomimetic niche shows the potential for directing autologous ADMSCs to neural cells for applications in regenerative medicine.The role of rotational molecular motors of the ATP synthase class is integral to the metabolism of cells. Yet the function of FliI6-FliJ complex, a homolog of the F1 ATPase motor, within the flagellar export apparatus remains unclear. We use a simple two-state model adapted from studies of linear molecular motors to identify key features of this motor. The two states are the 'locked' ground state where the FliJ coiled coil filament experiences angular fluctuations in an asymmetric torsional potential, and a 'free' excited state in which FliJ undergoes rotational diffusion. Michaelis-Menten kinetics was used to treat transitions between these two states, and obtain the average angular velocity of the unloaded FliJ filament within the FliI6 stator ωmax ≈ 9.0 rps. The motor was then studied under external counter torque conditions in order to ascertain its maximal power output Pmax ≈ 42 kBT/s (or 102 kW/mol), and the stall torque Gstall ≈ 3 kBT/rad (or 0.01 nN·nm/rad). Two modes of action within the flagellar export apparatus are proposed, in which the motor performs useful work either by continuously 'grinding' through the resistive environment of the export gate, or by exerting equal and opposite stall force on it. In both cases, the resistance is provided by flagellin subunits entering the flagellar export channel prior to their unfolding. We therefore propose that the function of the FliI6-FliJ complex is to lower the energy barrier, and therefore assist in unfolding of the flagellar proteins before feeding them into the transport channel.Most of the existing recognition algorithms are proposed for closed set scenarios, where all categories are known beforehand. However, in practice, recognition is essentially an open set problem. There are categories we know called "knowns", and there are more we do not know called "unknowns". Enumerating all categories beforehand is never possible, consequently, it is infeasible to prepare sufficient training samples for those unknowns. Applying closed set recognition methods will naturally lead to unseen-category errors. To address this problem, we propose the prototype-based Open Deep Network (P-ODN) for open set recognition tasks. Specifically, we introduce prototype learning into open set recognition. Prototypes and prototype radiuses are trained jointly to guide a CNN network to derive more discriminative features. Then P-ODN detects the unknowns by applying a multi-class triplet thresholding method based on the distance metric between features and prototypes. Manual labeling the unknowns which are detected in the previous process as new categories. Predictors for new categories are added to the classification layer to "open" the deep neural networks to incorporate new categories dynamically. The weights of new predictors are initialized exquisitely by applying a distances based algorithm to transfer the learned knowledge. Consequently, this initialization method speeds up the fine-tuning process and reduce the samples needed to train new predictors. Extensive experiments show that P-ODN can effectively detect unknowns and needs only few samples with human intervention to recognize a new category. In the real world scenarios, our method achieves state-of-the-art performance on the UCF11, UCF50, UCF101 and HMDB51 datasets.

In the last few weeks Italy first, and then several other countries across the world, have been swept up by the deadly wave of the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), which causes the illness named COVID-19, from the acronym CO (corona) VI (virus) D (disease) and 19 (year of the virus identification). The medical community is working day and night to assist affected people and experts in communicable diseases are striving in multiple ways to understand the progression of events leading to the lethal respiratory syndrome. This article is protected by copyright. All rights reserved.Coronavirus Disease 2019 (COVID-19), triggered by the betacoronavirus SARS-CoV-2, has become one of the worst pandemics of our time that has already caused more than 183,470 deaths [JHU data-23/04/2020, https//www.arcgis.com/apps/opsdashboard/index.html#/bda7594740fd40299423467b48e9ecf6]. Effective therapeutic approaches are urgently needed to reduce the spread of the virus and its death toll. Here, we assess the possibility of using interferon lambda (IFNλ), a third type of interferon sharing low homology with type I IFNs and IL-10, for treating COVID-19 patients. We discuss the unique role of IFNλ in fine-tuning antiviral immunity in the respiratory tract to achieve optimal protection and minimal host damage and review early evidence that SARS-CoV-2 may impair IFNλ induction, leading to a delayed type I IFN-dominated response that triggers hyperinflammation and severe disease. We also consider the potential windows of opportunity for therapeutic intervention with IFNλ and potential safety considerations. We conclude that IFNλ constitutes a promising therapeutic agent for reducing viral presence and hyperinflammation in a single shot to prevent the devastating consequences of COVID-19 such as pneumonia and acute respiratory distress syndrome (ARDS). This article is protected by copyright. All rights reserved.Fras1 is an extracellular protein of the basement membranes that surround embryonic epithelia, choroid plexuses and meninges in fetal mouse brain. Depletion of Fras1 in knockout mice results in sub-epidermal blistering and, fusion of eye lids and digits as well as malformation of lungs and kidneys. https://www.selleckchem.com/products/pacritinib-sb1518.html Mutations in the human counterpart FRAS1 are responsible for the Fraser Syndrome with clinical manifestations similar to the murine phenotype. In addition, brain deformities or mental impairments have occasionally been reported in patients with Fraser Syndrome. In the present study, we explored the possible involvement of Fras1 in brain function, analyzing its expression pattern in mouse brain and investigating aspects of Fras1-/- mice behavior, related to the function of brain regions expressing Fras1. Transcripts were detected in choroid plexuses and in certain brain regions including cortical, hippocampal and amygdalar areas in juvenile mice. Behavioral tests revealed that Fras1-/- mice exhibit impaired egocentric spatial memory, aberrant olfactory learning and memory, markedly reduced fear memory in an auditory fear conditioning task, as well as reduced anxiety expression in open field and elevated plus maze tests. Moreover, the extracellular matrix organization has been severely affected in cortical and subcortical areas as demonstrated by Wisteria floribunda agglutinin immunolabelling. The widespread detection of Fras1 transcripts in the brain of both pre- and postnatal mice, as well as the behavioral and cellular disturbances exhibited by Fras1-/- adult mice provide evidence for the involvement of Fras1 in brain organization and function. This article is protected by copyright. All rights reserved.PURPOSE Fetal adrenal gland changes have previously been investigated as novel markers of preterm labor and small for gestational age (SGA) fetuses. We aimed to compare the fetal adrenal gland parameters in SGA and appropriate for gestational age (AGA) fetuses. METHODS A prospective cohort study was conducted on SGA fetuses with estimated fetal weight (EFW) ≤10th centile and AGA (EFW >10th centile) at 17 to 34 weeks gestation. Fetal adrenal total gland volume (TGV), TGV corrected for EFW (cTGV), fetal zone volume (FZV), FZV corrected for EFW (cFZV), and FZVTGV ratio were compared and correlated with gestational age and EFW. Receiver operator curves assessed FZVTGV ratio, cTGV, and cFZV in detecting SGA. RESULTS Ultrasound examinations from 103 AGA and 50 SGA fetuses showed that (a) SGA fetuses had higher TGV (P = .002), FZV (P = .001), and FZVTGV (P = .036) compared to AGA fetuses; (b) fetal adrenal TGV, FZV, cFZV, and FZVTGV increase with advancing gestational age and EFW while cTGV does not; (c) Fetal adrenal changes in cTGV, cFZV, and FZVTGV have ability to differentiate SGA; (d) FZVTGV ratio 10 and 25 may be used to identify or exclude SGA in antenatally suspected SGA. CONCLUSIONS We investigated the concept that SGA fetuses have measurable changes to the adrenal gland. We have shown that fetal TGV, TGV, and FZVTGV ratio show differences between AGA and SGA with TGV remaining significant after accounting for GA at scan. These findings may be useful as potential biomarkers for diagnosing or excluding SGA. © 2020 Wiley Periodicals, Inc.Interferon-α (IFN-α), composed of numerous subtypes, plays a crucial role in immune defense. As the most-studied subtype, IFN-α2 has been used for treating chronic hepatitis B virus (HBV) infection with advantages of finite treatment duration and sustained virological response, but its efficacy remains relatively low. Here, we aimed to screen for IFN-α subtype with the highest anti-HBV potency and to characterize new mechanism of IFN-α-mediated HBV restriction. Using cell culture-based HBV infection systems and a human liver chimeric mouse model, IFN-α subtypes-mediated antiviral response and signaling activation were comprehensively analyzed. IFN-α14 was identified as the most effective subtype in suppression of HBV cccDNA transcription and HBeAg/HBsAg production, with IC50 values approximately 100-fold lower than the conventional IFN-α2. IFN-α14 alone elicited IFN-α and -γ signaling crosstalk similarly to the combined use of IFN-α2 and IFN-γ, inducing multiple potent antiviral effectors, which synergistically restricted HBV replication.

43 times higher in stimulated hydrogels. These findings make ES a promising tool for enhancing articular cartilage tissue engineering outcomes by combining hydrogels and MSCs. OBJECTIVE To evaluate whether gestational age was associated with the severe maternal morbidity (SMM) of preterm cesarean delivery between 22 and 34 weeks of gestation (weeks). MATERIAL AND METHODS We performed an observational retrospective cohort study in two tertiary university hospitals in 2018. We included all mothers of preterm infants born by caesarean delivery between 22 and 34 weeks, excluding mothers with multiple births greater than two, with pregnancy terminations or stillbirths, and who died unrelated to obstetrical causes. The principal endpoint, SMM, was a composite outcome (classical uterine incision, postpartum hemorrhage defined by blood loss ≥ 500 mL, blood transfusion, any injury to adjacent organs, unplanned procedure/need for reintervention, Intensive Care Unit (ICU) stay longer than 24 hours, postpartum fever, and/or death). RESULTS Among the 252 women, SMM occurred in 89 (35.3%) cases. After multivariate analysis, gestational age was independently associated with SMM (adjusted Odds Ratio [aOR] 0.87; 95% Confidence Interval [CI] 0.78-0.97). The other variables statistically associated with SMM were type of pregnancy with a negative association with twin pregnancy (aOR, 0.44; 95% CI, 0.20-0.93) and a positive association with general anesthesia (aOR, 2.52; 95% CI, 1.25-5.13). A sensitivity analysis was performed and found an association, at the limit of significance, between gestational age less then 28 weeks and SMM (aOR, 1.80; 95% CI, 0.99-3.27, p = 0.05). CONCLUSION Lower gestational age was associated with the risk of SMM for preterm cesarean delivery between 22 and 34 weeks. Obstetricians should integrate this knowledge into their shared decision-making processes with parents. INTRODUCTION About 6% of women with breast cancer present with synchronous metastases. Treatment remains palliative in international recommendations but the impact of loco-regional surgery remains controversial. OBJECTIVE We conducted a multicentre, cohort study to evaluate the impact of axillary lymph node (ALN) surgery on overall survival in stage IV breast cancer at diagnosis. METHODS Patients presenting with breast cancer and synchronous metastases between 2005 and 2014 were included. Follow up was conducted up to 1st June 2018. The only exclusion criterion was a history of previous malignancies. Breast surgery was defined as lumpectomy or mastectomy. Axillary surgery included full ALN dissection, and sentinel lymph node biopsy (SLNB). If the SLN was invaded on the frozen section, full axillary dissection was performed. RESULTS 152 patients were included. 71 women had no surgery, 81 had primary site surgery of which 64 (79%) had breast and axillary surgery and 17 (21%) breast surgery only. 5-year overall survival was 59.8% (95% CI=[49.5; 69.5]) for women with breast and axillary surgery, 23.5% (95% CI=[15.6; 33]) for women with breast surgery only and 9.8% (95% CI=[4.7; 17.5]) for women without any surgery, p  less then  0.001. Combined with breast surgery, axillary surgery significantly added a mean of 33 months to patient overall survival. CONCLUSION ALN surgery combined with breast surgery in metastatic breast cancer significantly increased overall survival. Thus surgical indications should not differ from those in women with breast cancer without metastases. We report hereby two cases of fluorescence-guided surgical resection with Indocyanine green in vulvo-vaginal neoplasia. The first case was a 86-year old patient who had a high-grade squamous intraepithelial lesion of the left small lip and on the vulvar fork. After a first incomplete surgery, a second fluorescence-guided vulvectomy was performed with ICG injected intravenously to determine intraoperatively surgical margins. At final pathologic examination, surgical margins were free of disease and postoperative course was uneventful. The second case was a 44-year old patient who had a clear cell carcinoma of the upper vagina. She underwent a fluorescence-guided colpo-hysterectomy with pelvic lymphadenectomy. ICG was injected one centimeter around the tumor and highlighted intraoperatively the limits of the vaginal resection. On the specimens, surgical margins were also negative. Peritumoral or intravenous injection of ICG are promising techniques for the intraoperative identification of surgical margins in gynecologic malignancies. The anaerobic biodegradability of lignocellulosic crop waste could be improved by proper pretreatments, but little information is available on enhancing straw digestibility through the reactor configuration. In a lab-based batch experiment, a novel reactor was established to testify the possibility to enhance anaerobic biodegradability of corn stover (CS) by coupling a self-sustaining air flotation screening (SAFS) unit with conventional continuous stirred tank reactor (CSTR). The SAFS-CSTR improved the maximum methane production by 14.27% with the duration of 16 d compared with the conventional CSTR for 20 d. The temporal and spatial distribution of basic indexes significantly differed from conventional CSTR. Elevated bacterial diversity and marked shifts in bacterial community composition were observed in different locations of reactor, with Bacteroidetes and Proteobacteria being the dominant phyla. SAFS unit would serve to separate inhibitors effectively and meanwhile enhance the mass-transfer efficiency, thus providing reference to upgrade or retrofit the conventional CSTR. A novel natural deep eutectic solvent (NDES) with water content ranging from 65 to 93 wt%, in which betaine (Bet) acts as the cation and amino acids (AAs) as the anions, was prepared by a simple and green chemical route. [Bet][AA] NDES showed excellent xylan and lignin solubility, however, scare cellulose solubility. https://www.selleckchem.com/products/sgc707.html A mild and facile pretreatment process with [Bet][AA] NDES was carried out at 60 °C for 5 h. The enzymatic hydrolysis efficiency of cellulose and corncob was significantly improved. Detailed characterization showed that the enhancement of cellulose digestibility derived mainly from xylan and lignin removal. Xylan and lignin removal for [Bet][Lys]-W87 was 47.68 and 49.06%, while it was 42.20% and 57.01% for [Bet][Arg]-W82, respectively. FT-IR, SEM, XRD, and HSQC NMR studies confirmed the effectiveness and mechanism of [Bet][Lys]-W87 and [Bet][Arg]-W82 on biomass pretreatment.

Purpose The purpose of this study was to investigate the overlaps between gross target volume (GTV) and the celiac artery (CA) and superior mesenteric artery (SMA) lymph node regions and to examine the dose incidentally irradiated to the CA and SMA lymph node regions by involved-field radiation therapy (IFRT) for locally advanced pancreatic cancer (LAPC). Methods and materials Fifty-nine patients who had LAPC without distant metastasis were included. They received IFRT at 50.4 Gy in 28 fractions with 3-dimensional conformal radiation therapy. We calculated the percentages of overlap of GTV in the CA and SMA lymph node regions and examined what cases tend to have an overlap. We also investigated the dose metrics of CA and SMA lymph node regions by IFRT and the frequency of CA or SMA lymph node metastasis after IFRT. Results The median GTV volume was 52.2 mL. Median overlap percentages in the CA and SMA lymph node regions were 39.2% and 28.6%, respectively. There was a significant correlation between GTV volume and SMA overlap percentage (P less then .001). Although the SMA overlap percentage was higher in the pancreas head (P = .028), the CA overlap percentage was higher in the pancreas body or tail (P = .002). Median mean dose, D95, and minimum dose in the CA lymph node region were 50.1 Gy, 48.7 Gy, and 45.9 Gy, respectively, and those in the SMA lymph node region 49.9 Gy, 47.3 Gy, and 39.2 Gy, respectively. CA lymph node metastases after IFRT were detected in 4 patients (6.8%). Conclusions An overlap between GTV and CA-SMA lymph node regions was detected in many patients, and the CA and SMA lymph node regions were irradiated incidentally even by IFRT. Prophylactic lymph node regions might not be necessary in radiation therapy planning of LAPC.Purpose Preoperative chemoradiation is being currently evaluated in 2 randomized international trials. However, chemoradiation for gastric cancer can be associated with relatively high rates of acute toxicity. We compared rates of toxicity, toxicity-related events, and oncologic outcomes in patients treated with intensity modulated radiation therapy (IMRT) and those treated with 3-dimensional conformal radiation therapy (3DCRT). Methods and materials We retrospectively reviewed records of 202 patients with consecutive gastric cancer treated with preoperative intent radiation therapy at our institution from 1998 to 2018. Patients with gastroesophageal junction involvement and those with metastatic disease were excluded. Eighty-two patients received 3DCRT, and 120 patients received IMRT. The median radiation dose was 45 Gy, and 99% received concurrent chemotherapy. Results There were no significant differences between the 3DCRT and IMRT groups regarding sex, race, histology, tumor location, histology, or nodal significant difference in oncologic outcomes. IMRT is an appropriate and possibly preferable radiation modality in patients treated with preoperative chemoradiation for gastric cancer.Purpose The role of stereotactic radiosurgery (SRS) alone for patients with ≥5 brain metastases is not fully understood. The objective of the study was to compare SRS-alone treatment results for 2 to 4 versus 5 to 15 tumors. Methods and materials This was an institutional review board-approved, retrospective cohort study using our prospectively accumulated database including 1150 patients with 2 to 4 tumors and 939 with 5 to 15 tumors who underwent Gamma Knife SRS during a 20-year period (1998-2018). The Kaplan-Meier method was used to determine post-SRS survival times, and competing risk analyses were applied to estimate cumulative incidences of the secondary endpoints. https://www.selleckchem.com/products/pf-2545920.html Results The post-SRS median survival time was slightly longer in the group with 2 to 4 tumors (8.1 months) than in that with 5 to 15 tumors (7.2 months, P = .0010). Median survival time differences were statistically significant for non-small cell lung cancer, gastrointestinal tract cancer, and others but not for small cell lung cancer, breast cancer, and kidney cancer. Multivariable analysis demonstrated female sex, better Karnofsky Performance Status score, non-small cell lung cancer (vs gastrointestinal tract cancer), younger age, controlled primary cancer, and no extracerebral metastases to be significant predictors of a longer survival period in both tumor number groups. Crude and cumulative incidences of salvage whole brain radiation therapy were significantly higher in the group with 5 to 15 tumors than in that with 2 to 4 tumors, although those of other secondary endpoints were similar to or lower in the 5 to 15 tumor number group than those in the group with 2 to 4 tumors. Conclusions We conclude that carefully selected patients with ≥5 to 15 tumors are not unfavorable candidates for SRS alone.Purpose Brain metastases (BrM) are common in patients with epidermal growth factor receptor (EGFRm) mutant non-small cell lung cancer (NSCLC). We sought to determine the rate of neurologic death (ND) in this population. Methods and materials We analyzed data from 198 patients who received a diagnosis of BrM from EGFRm NSCLC between 2004 and 2016, comparing patients whose initial treatment for BrM was stereotactic radiosurgery with or without tyrosine kinase inhibitors (TKI), whole brain radiation therapy (WBRT) with or without TKI, or TKI alone. The incidence of ND was determined using a competing risks analysis. Univariate and multivariate analyses were used to identify clinical variables associated with this outcome. Results The percentage of patients who initially received stereotactic radiosurgery, whole brain radiation therapy, or TKI alone was 22%, 61%, and 17%, respectively. Median overall survival in these subgroups was 31.1, 14.6, and 24.6 months, respectively (P = .0016). The 5-year incidence of ND among all patients was 40% and did not significantly vary according to treatment group. In a multivariable model, only leptomeningeal disease at any point in a patient's disease course significantly correlated with ND (hazard ratio 4.75, P less then .001). Conclusions Among our cohort of patients with BrM from EGFRm NSCLC, the incidence of ND was significantly higher than suggested by previous reports. BrM should be considered a driver of mortality in many patients with EGFRm NSCLC, and treatments providing better control of BrM, lower neurocognitive side effects, and maintenance of quality of life are needed.

At the 12-month follow-up, the two groups showed a similar reduction of symptoms. However, preliminary evidence indicates that MBCT has a superior effect on some aspects of OCD. This should be replicated in future studies.Background Traditionally, seeds of Herpetospermum pedunculosum were used to treat liver disease or cholepathy. Up to date, their protecting effect against cholestasis was remain unclarified. Purpose To investigate the efficacy, possible mechanisms, and active constituents of the ethyl acetate extract from the seeds of Herpetospermum pedunculosum (HPEAE), studies were carried out using cholestasis rat model induced by α-naphthylisothiocyanate (ANIT). Methods Male rats were intragastrically treated with HPEAE (100, 200 or 400 mg/kg) once a day for 7 days and were modeled with ANIT (60 mg/kg). The levels of serum indicators, bile flow, and histopathology were evaluated. Indices of oxidative stress and inflammatory mediators were detected using the enzyme-linked immunosorbent assay. Western blotting method was employed for analyzing the protein levels in the signal pathways of farnesoid X receptor (FXR), kelch ech associating protein 1/nuclear factor erythroid 2-related factor 2 (Keap1/Nrf2) and nuclear factor κBase and malondialdehyde were markedly restored by treatment with HPEAE. Western blotting further confirmed that HPEAE up regulated the expression of quinone oxidoreductase 1, heme oxygenase 1 and Keap1, lowered the expression of Nrf2 and reduced oxidative stress. HPEAE also up regulated P-glycoprotein 65, phosphorylated P-glycoprotein 65 and inhibitor of NF-κB kinase α expression, down regulated inhibitor of NF-κB (IκB), restored inflammatory mediator tumor necrosis factor-α, interleukin-1β (IL-1β), IL-6 and IL-10, and reduced inflammatory response. Fifteen compounds were identified (12 lignans and 3 coumarins). Among them, five lignans exhibited the significant FXR agonistic activity in vitro. Conclusion HPEAE may alleviate the cholestasis and liver injury caused by ANIT in rats by activating FXR, as well as suppressing the Keap1/Nrf2 and NF-κB signaling pathways and lignans may be its main active components.Background Although Bushenhuoxue formula (BSHXF) is successfully used as a non-traumatic therapy in treating bone fracture in China, the molecular mechanism underlying its effects remains poorly understood. Purpose The present study aims to explore the therapeutic effects of BSHXF on fracture healing in mice and the underlying mechanism. Methods We performed unilateral open transverse tibial fracture procedure in C57BL/6 mice which were treated with or without BSHXF. Fracture callus tissues were collected and analyzed by X-ray, micro-CT, biomechanical testing, histopathology and quantitative gene expression analysis. Tibial fracture procedure was also performed in Cre-negative and Gli1-CreER; Tgfbr2flox/flox conditional knockout (KO) mice (Tgfbr2Gli1ER) to determine if BSHXF enhances fracture healing in a TGF-β-dependent manner. In addition, scratch-wound assay and cell counting kit-8 (CCK-8) assay were used to evaluate the effect of BSHXF on cell migration and cell proliferation in C3H10T1/2 mesenchymal stem cells, respectively. Results BSHXF promoted endochondral ossification and enhanced bone strength in wild-type (WT) or Cre- control mice. In contrast, BSHXF failed to promote bone fracture healing in Tgfbr2Gli1ER conditional KO mice. In the mice receiving BSHXF treatment, TGF-β/Smad2 signaling was significantly activated. Moreover, BSHXF enhanced cell migration and cell proliferation in C3H10T1/2 cells, which was strongly attenuated by the small molecule inhibitor SB525334 against TGF-β type I receptor. Conclusion These data demonstrated that BSHXF promotes fracture healing by activating TGF-β/Smad2 signaling. BSHXF may be used as a type of alternative medicine for the treatment of bone fracture healing.Background Compound Kushen Injection (CKI), a well-known Chinese Medicine preparation, has been used to treat non-small cell lung cancer (NSCLC) for more than 15 years, and its clinical curative effect is considered to be beneficial. Hypothesis/purpose This study was designed to evaluate the effects and underlying mechanisms of CKI against NSCLC using an ultra-high-performance liquid chromatography quadrupole time-of-flight mass spectrometry (UPLC-Q-TOF/MS)-based plasma metabolomics approach. https://www.selleckchem.com/products/sd49-7.html Methods 4',6-diamidino-2-phenylindole (DAPI) staining and 3-(4,5-dimethyl-thiazol-2-yl)-2,5-diphenyl-tetrazolium bromide (MTT) dye reduction assay were employed to assess apoptosis and the viability of A549 cells with and without CKI treatment. The weight/volume of Lewis lung carcinoma (LLC) sarcomas and histopathological examinations were used to evaluate the anti-tumor effects of CKI against NSCLC. A UPLC-Q-TOF/MS method combined with multivariate data analysis was developed to characterize metabolomic fingerprinting aolipid metabolism is a crucial feature of cancer-specific metabolism, the enzymes that are involved in 1-acyl-sn-glycero-3-phosphoinositol biosynthesis were further evaluated. Western blotting results indicated that CKI modulated the abnormal biosynthesis pathway of 1-acyl-sn-glycero-3-phosphoinositol by activation of cytidine diphosphate-diacylglycerol-inositol 3-phosphatidyltransferase (CDIPT) and cytosolic phospholipase A2 (cPLA2), and by inhibition of lysophosphatidic acid acyltransferase gamma (AGPAT3). Conclusion This study demonstrated that CKI has a favorable anti-tumor effect and that a UPLC-Q-TOF/MS-based metabolomics method in conjunction with further verifications at the biochemical level is a promising approach for investigating its underlying mechanisms.Background and purpose Gastric cancer is one of the major malignancies worldwide. Epiberberine (EPI) is a major alkaloid from Coptis chinensis Franch and the antitumor property of EPI remains poorly understood. Method The inhibition on gastric cancer cells was observed by MTT assays and colony formation experiments. The apoptosis, cell cycle, and reactive oxygen species (ROS) and mitochondrial membrane potential (ΔΨm) in gastric cancer cells were analyzed by Flow cytometry. The anti-tumor effect of EPI was evaluated with the MKN-45-beraring nude mice, and the potential mechanisms were explored by RNA-seq, qPCR, siRNA silencing and western blotting. Results EPI inhibited the proliferation of human gastric cancer cell lines MKN-45 (harboring wild-type p53) and HGC-27 (harboring mutant p53) in a dose dependent manner. EPI induced the apoptosis and cell cycle arrest in these two cell lines, of which MKN-45 cells are more sensitive to EPI than HGC-27 cells. Further experiments indicated that EPI induced the accumulation of ROS and decreased of ΔΨm in MKN-45 cells.

mponent necessitating a cone or sleeve. Femoral component revision for isolated tibial loosening can frequently be avoided provided adequate ligamentous stability can be obtained. Cite this article Bone Joint J 2020;102-B(6 Supple A)123-128.Aims Arthrodesis is rarely used as a salvage procedure for patients with a chronically infected total knee arthroplasty (TKA), and little information is available about the outcome. The aim of this study was to assess the reliability, durability, and safety of this procedure as the definitive treatment for complex, chronically infected TKA, in a current series of patients. Methods We retrospectively identified 41 patients (41 TKAs) with a complex infected TKA, who were treated between 2002 and 2016 using a deliberate, two-stage knee arthrodesis. https://www.selleckchem.com/products/pacritinib-sb1518.html Their mean age was 64 years (34 to 88) and their mean body mass index (BMI) was 39 kg/m2 (25 to 79). The mean follow-up was four years (2 to 9). The extensor mechanism (EM) was deficient in 27 patients (66%) and flap cover was required in 14 (34%). Most patients were host grade B (56%) or C (29%), and limb grade 3 (71%), according to the classification of McPherson et al. A total of 12 patients (29%) had polymicrobial infections and 20 (49%) had multi-drug resistant on (32%). This is not surprising as this series included worst-case infected TKAs in which two-thirds of the patients had a disrupted EM, one-third required flap cover, and most had polymicrobial or multi-drug resistant organisms. Cite this article Bone Joint J 2020;102-B(6 Supple A)170-175.Aims This study aimed to evaluate the association between the sagittal alignment of the femoral component in total knee arthroplasty (TKA) and new Knee Society Score (2011KSS), under the hypothesis that outliers such as the excessive extended or flexed femoral component were related to worse clinical outcomes. Methods A group of 156 knees (134 F22 M) in 133 patients with a mean age 75.8 years (SD 6.4) who underwent TKA with the cruciate-substituting Bi-Surface Knee prosthesis were retrospectively enrolled. On lateral radiographs, γ angle (the angle between the distal femoral axis and the line perpendicular to the distal rear surface of the femoral component) was measured, and the patients were divided into four groups according to the γ angle. The 2011KSSs among groups were compared using the Kruskal-Wallis test. A secondary regression analysis was used to investigate the association between the 2011KSS and γ angle. Results According to the mean and SD of γ angle (γ, 4.0 SD 3.0°), four groups (Extended or minor flexed group, -0.5° ≤ γ 8.5° showed inferior clinical outcomes in 2011KSSs. Secondary regression analyses showed that mild flexion of the femoral component was associated with the highest score. When implanting the Bi-Surface Knee prosthesis surgeons should pay careful attention to avoiding flexing the femoral component extensively during TKA. Our findings may be applicable to other implant designs. Cite this article Bone Joint J 2020;102-B(6 Supple A)36-42.As the final and critical step in in vitro fertilization (IVF), embryo transfer has always received much attention and deserves continuous optimization. In the present study, to explore the role of autocrine factors in embryo self-spent culture media, we prospectively compared embryo transfer with self-spent culture medium and fresh medium on clinical pregnancy outcomes. A total of 318 fresh IVF/intracytoplasmic sperm injection (ICSI) cycles were randomly allocated into two subgroups based on their transfer media (using a self-spent culture medium or new pre-equilibrated culture media), and the clinical outcomes were compared between groups. The implantation rates, clinical pregnancy rates and live birth rates for transfer using self-spent medium instead of new pre-equilibrated culture medium were slightly improved without statistical significance. Interestingly, however, biochemical pregnancy rate was found to be significantly decreased after transfer using self-spent medium for Day 3 embryos compared with new pre-equilibrated culture media. In short, embryo transfer with self-spent culture medium has shown some advantages, and large sample size studies are still needed to confirm these observations. Abbreviations ART assisted reproductive technologies; ICSI intracytoplasmic sperm injection; IVF in vitro fertilization; ET embryo transfer.Objective The aim of this study is to determine the effectiveness of an extended cognitive rehabilitation program in group's sessions in multiple sclerosis. Design Double-blind multicenter randomized trial. Participants People with multiple sclerosis of 18 to 60 years, Expanded Disability Status Scale ⩽6.0, mild to moderate cognitive impairment. Interventions They were randomized into cognitive rehabilitation program (ProCog-SEP) or in a placebo program. ProCog-SEP comprises 13 group's sessions over 6 months and includes psychoeducational advices and cognitive exercises. Placebo program included non-cognitive exercises. No strategy and no cognitive advice were provided. Main measures The primary endpoint was the percentage of verbal memory learning measured by the Selective Reminding Test. A comprehensive neuropsychological assessment is carried out before and after interventions by a neuropsychologist blinded to intervention. Effectiveness of the ProCog-SEP versus Placebo has been verified using linear regression models. Results In total, 128 participants were randomized and 110 were included in the study after planning session in groups; 101 completed this trial (77.2% females); mean age 46.1 years (±9.6); disease duration 11.8 years (±7.5). ProCog-SEP was more effective in increasing in learning index (9.21 (95% confidence interval (CI) 1.43, 16.99); p = 0.02) and in working memory on manipulation (0.63 (95% CI 0.17, 1.09); p = 0.01), and updating capacities (-1.1 (95% CI -2.13, -0.06); p = 0.04). No difference was observed for other neuropsychological outcomes. Regarding quality of life outcomes, no change was observed between the two groups. Conclusion These findings suggest that ProCog-SEP could improve verbal learning abilities and working memory in people with multiple sclerosis. These improvements were observed with 13 group sessions over 6 months.

Our aim was to evaluate the performance of matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF MS), routinely used in the microbiology laboratory for bacterial identification, for bacterial typing in the setting of extended spectrum beta-lactamase producing Klebsiella pneumoniae (ESBL-KP) outbreak in the neonatal intensive care unit (NICU). Isolates from a 2011 outbreak in the NICU were retrieved from frozen stocks and analyzed by MALDI-TOF. The MALDI typing was compared with core genome multilocus sequence typing (cg-MLST). MALDI typing divided the 33 outbreak isolates into 2 clones sequence type (ST)-290 and 405. These results were in complete agreement with cg-MLST results. The differentiation of the outbreak isolates into two clones correlated with the patients' location in the NICU, but also with their place of residence.Conclusion Here, we show that MALDI-TOF MS, which has been integrated into the microbiology laboratory workflow for microbial species identification, can be secondarily used for epidemiological typing at no added cost.What is Known• Matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF MS) is now routinely used in the microbiology laboratory for bacterial identificationWhat is New• MALDI typing was used for outbreak investigation in the NICU and divided the outbreak isolates into two clones• MALDI-TOF MS may be secondarily used for epidemiological typing at no added cost.Purpose of review The aim of this review paper is to evaluate the current data regarding clinical use of ultrasound (US) for diagnosis of systemic vasculitis. Recent findings In recent years, US has emerged as an image modality taking a central role in the diagnosis and monitoring of vasculitides by measuring vessel wall inflammation and changes in vessel wall thickness. US has been recognized as an important tool predominantly in the diagnosis of large vessel vasculitis (LVV). Signs like the "halo sign" in temporal arteries of patients with giant cell arteritis (GCA) have demonstrated to be a robust marker. In other types of vasculitides the role of US is not well defined yet but could be of help by diagnosing secondary findings when there is organ involvement, like interstitial lung disease in small vessel vasculitis (SVV). Different modes of ultrasound (US) are being studied for this purpose, especially since it is a non-invasive technique that can limit exposure to ionizing radiation. In conclusion there is clear evidence for the use of US particularly color duplex US (CDS) in the diagnosis of LVV like GCA and Takayasu's arteritis (TAK). https://www.selleckchem.com/products/ri-1.html Nevertheless, there is urgent need for more data in regard to the use of US in small/medium vessel vasculitis, as well as the role of US in monitoring of patients with LVV.Background We introduced a video consultation (VC) during the coronavirus (COVID-19) pandemic in an ophthalmology practice with eight doctors to ensure continuous ophthalmological care, infection prophylaxis and to compensate a decreased number of patient presentations. Objective Evaluation of the most common reasons for patient presentations in the VC, the proportion of re-presentations in the practice despite VC, practical challenges associated with the introduction of VC and patient satisfaction. Material and methods Patients with a recent acute visual deterioration and severe eye pain were excluded from the VC. The VC were carried out by a trained specialist in ophthalmology. A questionnaire with eight questions was completed after the VC appointment in order to evaluate the proportion of completed VC and patient satisfaction. Results We included 29 (13 male, Ø 52.6 years, 16 female, Ø 64.7 years) patients in this analysis. The VC could be performed with 68.97% of the participants who rated their overall experience with an average grade of 1.6 (1 very good to 6 insufficient) and all of them indicated that they would recommend the VC. Of presentations in VC 70% were related to the symptoms of the anterior eye segment. In 70% of the cases no re-presentations took place in the unit. Conclusion Our study represents a significant practical application of VC for the management of non-urgent ocular conditions with maximum infection prophylaxis. The introduction of VC was severely limited by technological or user-related issues by the establishment of video connections. Patient satisfaction with VC was high to very high.This article reports a case of severe, treatment refractory infectious keratitis. Multiple samples of the cornea and the anterior chamber were taken without detection of any pathogens. Ultimately a multidrug-resistant Pseudomonas aeruginosa was isolated and successfully treated with tobramycin and amikacin, according to its antibiotic sensitivity. If there is a clinical suspicion multiple samples should be taken and multidrug-resistant pathogens considered as a differential diagnosis.The SureID® PathFinder Plus is a new 6-dye, 41-plex Y-STR system that includes the 17 loci from the Yfiler® kit (DYS19, DYS385a/b, DYS389I/II, DYS390, DYS391, DYS392, DYS393, DYS437, DYS438, DYS439, DYS448, DYS456, DYS458, DYS635, and Y-GATA-H4) plus 14 rapidly mutating Y-STR loci (DYS449, DYS481, DYS518, DYS527a/b, DYS533, DYS549, DYS570, DYS576, DYS627, DYF387S1a/b, and DYF404S1), and 10 low-medium mutation loci (DYS388, DYS444, DYS447, DYS460, DYS522, DYS557, DYS593, DYS596, DYS643, and DYS645). The inclusion of the 14 rapidly mutating Y-STR loci improves the discrimination of related individuals. Conversely, the 10 low-medium mutation loci are suitable not only for familial searching but also for providing a higher refinement in the construction of Y chromosome phylogenetic relationships among lineages. The 41-plex Y-STR system is designed for direct amplification of reference samples, such as blood samples on an FTA® Card, gauze, tissue, or cotton substrates as well as hair root or buccal samples on swabs. We performed developmental validation work including accuracy, stability, stutter precision, species specificity, sensitivity, PCR inhibitors, reproducibility, parallel testing of the system, and suitability for use on DNA mixtures. In addition, mutations of the loci were analyzed by 754 DNA-confirmed father-son pairs. The results demonstrate that this kit, developed in-house, is time-efficient, accurate, reliable, and highly informative for forensic database, familial searching, and distinguishing related males.

Black carbon (BC) is a substance that significantly affects the migration and transformation of hydrophobic organic compounds (HOCs) in soil/sediment. https://www.selleckchem.com/products/TW-37.html High-temperature BC is an important form of BC in the environment, and, currently, there is relatively little research on the influence of high-temperature BC on the sorption and the desorption behavior of HOCs and its mechanism. In this study, the sorption isotherms and TENAX-aided desorption kinetics of PCB1 by three typical high-temperature BCs (fly ash (FC), soot (SC), and high-temperature biochar (BC 900)) and a low-temperature biochar (BC 400) were compared. In addition, the sorption-desorption mechanism was clarified through its correlation with the physicochemical properties of BC. The results indicated that the Freundlich sorption parameters of FC, SC, BC 900, and BC 400 were 9947.90, 5417.57, 77690.16, and 2804.54 (mg kg-1)/(mg L-1), respectively, indicating that these high-temperature BCs had stronger sorption capacity. The desorption rate of PCB1 on BC 900 was slow, and the ratio of the difficult desorption fraction (Fr) was as high as 96.2%, while those of FC, SC, and BC 400 were only 35.3%, 19.1%, and 54.7%, respectively. The sorption and desorption mechanisms of the three high-temperature BCs were similar to those of BC 400. They exhibited nonlinear adsorption at low PCB1 concentrations and linear partition at high PCB1 concentrations. Moreover, the results demonstrated that different types of high-temperature BCs in the environment have different sequestration effects on HOCs. Frap, the part that can be quickly desorbed, was predominantly PCB1 sorbed onto BC through a linear partition mechanism, but the surface acidic functional groups and larger pores would also increase the Frap. Meanwhile, the slow desorption ratio (Fslow) was mainly affected by the degree of surface aromatization; the difficult-to-desorb PCB1 (Fr) was combined with BC through a nonlinear adsorption mechanism and was mainly related to the micropore volume. Graphical abstract.In the context of the continued increased global uptake of fingerprinting procedures to explore fluvial sediment sources, far less attention has been paid to dust source tracing and especially using different particle size fractions and low-cost tracers such as colour and magnetic susceptibility. The objective of this study, therefore, was to apportion local dust storm source contributions for the less then 63-μm and 63-125-μm fractions of dust samples in a case study in central Iran. Colour and magnetic susceptibility properties were measured on 62 source samples and six dust storm samples. Statistical methods were used to select four different composite fingerprints for discriminating the dust sediment sources. These statistical approaches comprised (1) the Kruskal-Wallis H test (KW-H), (2) a combination of KW-H and discriminant function analysis (DFA), (3) a combination of KW-H and principal components and classification analysis (PCCA), and (4) a combination of KW-H and a general classification and regrwith a corresponding mean value of 9.4%). The equivalent estimates for the 63-125-μm fraction were 1.2-20.1% (8.3%). The findings clearly demonstrate that colour and magnetic susceptibility tracers offer low-cost options for apportioning dust sources.In this study, we evaluated the possible effects of sequenced pulsed magnetic fields (PMF) of 1-mT treatments with designed different frequencies (PMF-1-1, 3, 5, 7 Hz or PMF-2-7, 9, 12, 14 Hz) on the inflammatory signs such as abnormal pain behaviors, hyperalgesia and allodynia, edema, and fever in carrageenan (CG)-induced hind paw inflammation model in rats. Paw tissues were also histologically examined. PMF exposure was applied 3 times in 24 h. CG injection gradually decreased the thermal latencies and mechanical threshold and caused significant increases in temperature and mass of paw. PMF treatments significantly reduced the temperature and mass in the paw of rats with inflammation. PMF-1 treatments caused significant increases in the latencies and thresholds. However, administration of PMF-2 treatment was significantly decreased the latency and threshold. Furthermore, the histological pieces of evidence also suggested the anti-inflammatory effects of PMF-1 treatments or inflammatory actions of PMF-2 treatments. Findings presented in this paper suggest that 1-mT PMF treatments may have anti-edematous and antipyretics activities in inflamed rats. However, the effects of PMF treatments on abnormal pain hypersensitivities may be different. PMF treatments may make inflammatory pain relief or worse in inflamed rats depending on the PMF frequencies in sequence.Heavy metal contamination of river water has become a major issue affecting environmental and human health worldwide. This study makes an effort to observe the heavy metal incidence of River Brahmaputra, India, and its river restoration assessment for 2 years, 2017-2018 and 2018-2019. River Brahmaputra is the second longest and a major transboundary river of the South Asian region, which transcends the political boundaries of China, India and Bangladesh. The Pearson correlation analysis was used to analyse the interrelationships between physico-chemical parameters (which was also analysed during our study) and heavy metals. Heavy metal pollution index and multivariate analyses such as hierarchical cluster analysis and principal component analysis were used to establish our scientific observations. An assessment involving people's willingness to pay for river restoration was also done. Arsenic (As), lead (Pb), antimony (Sb), nickel (Ni), chromium (Cr), mercury (Hg) and cadmium (Cd) were monitored in three state Brahmaputra river and citizens willingness to contribute towards restoring its water quality, the need for an appropriate river restoration strategy and water policy is strongly felt as an outcome of this study.In practical conditions, the remediation efficiency is always very limited due to the rapid aggregation and deactivation of nanoscale zero-valent iron (nZVI). Porous SiO2-coated technology can effectively suppress the agglomeration and oxidation of nZVI particle, resulting in the excellent dispersion and stability in water. A series of characterization results show that the porous SiO2-coated Fe0 (Fe0@p-SiO2) was a core-shell structure composite, with Fe0 as the core and the porous SiO2 as the shell. Moreover, the prepared composite material has a large specific surface area (244.04 m2/g). The experiments of nitrobenzene (NB) reduction and one-dimensional simulation column indicated that the different amounts of NaOH in the preparation process lead to the different structures, shapes, and particle sizes of prepared composite materials, which have significant effects on its activity and transportability. Under the conditions investigated, the optimum ratio of Fe0@p-SiO2 synthesis was nFe3+n(Tetraethoxy silane, TEOS)nNaOH = 11.