Therapeutic and diagnostic pars plana vitrectomy (PPV) was subsequently performed; microbiology and cytology analyses revealed evidence of fungal elements. Therefore, systemic anti-fungal treatment was initiated; the patient demonstrated significant clinical improvement with good visual outcome. Conclusion and importance Posterior hypopyon in endophthalmitis is a rarely observed entity and is typically obscured due to dense vitritis. Such clinical manifestation may suggest a possible infectious etiology as described in this case. © 2020 The Authors.Tea polyphenols (TP) are the major ingredients in tea beverages that display health-benefits including anti-oxidation, anti-inflammation, anti-aging, attenuating blood pressure and deflating. In this study, we investigated the neuroprotective effects of TP to attenuate staurosporine (STS)-induced cytotoxicity. Rat hippocampal neurons were isolated, cultured and incubated with STS to induce neurite collapse and apoptosis, however, the medication of TP eliminated these adverse effects and maintained the morphology of neurons. STS decreased the expression of pro-BDNF, downregulated the TrkB/Akt/Bcl-2 signaling axis and promoted the activation of Erk1/2 and caspase-3. In contrast, TP rescued the expression of pro-BDNF and antagonistically restored the biochemistry of aforementioned signaling effectors. Consistently, the activity of TP can be attenuated by the inhibition of TrkB or Akt by small chemicals K252a and LY294002. Therefore, BDNF-TrkB and Akt signaling axis is essential for TP-mediated neuroprotective effects. In summary, TP showed beneficial effects to protect neurons from exogenous insults such as STS-induced neural cytotoxicity and cell death. © 2020 The Author(s).Measurement of the absolute concentration of the biomarker psychosine in dried blood spots (DBS) is useful for diagnosis and prognosis of Krabbe disease and to support newborn screening of this leukodystrophy. As for assays for more common diseases, it is important to achieve congruence when multiple clinical laboratories provide testing. Four clinical laboratories, one research laboratory, and a commercial vendor collaborated with the goal to achieve congruence in quantitative psychosine measurement in DBS. A set of DBS calibrators was prepared by a single vendor and used in each reference laboratory to make a standard curve of measured psychosine in DBS versus the stated calibrator psychosine level. Congruence between the participating five laboratories was achieved using the psychosine DBS calibrators. This allowed application of disease-specific reference ranges obtained by the reference laboratory with the most extensive data by the other reference laboratories. Congruence between multiple reference laboratories in the measurement of the absolute concentration of biomarkers in DBS (and by extension other samples) is possible by the use of a common set of DBS calibrators.Suicide is one of the leading causes of death. Suicide stigma and literacy may affect the rate of suicide and help-seeking behaviors. https://www.selleckchem.com/products/chloroquine.html This study examined the psychometric properties of the Arabic version of the Stigma of Suicide Scale-short form (SOSS-SF) and Literacy of Suicide Scale (LOSS). The sample included 160 Jordanian university students. Reliability analysis showed acceptable Cronbach's alpha levels of the three SOSS-SF subscales (stigmatization, isolation, and glorification subscales). Factor analysis supported the construct validity of the SOSS-SF by showing three factor structure similar to the three original subscales. LOSS scores showed low literacy level about suicide with a passing rate of 55% and a mean score of 5.63 out 12. Students had more difficulty in answering questions related to signs/symptoms and risk factors of suicide. This study will enable Arabic clinicians to use these tools which assess important aspects about suicide. © 2020 The Author(s).Obstructive sleep apnea (OSA) is a common disease that often causes debilitating symptoms. In its most severe form, OSA increases the risk of cardiovascular disease and mortality. OSA is characterized by repeated episodes of pharyngeal collapse leading to airway obstruction. The treatment options available in severe cases are limited to continuous positive airway pressure ventilation and maxillomandibular advancement (MMA). OSA is particularly difficult to treat successfully in edentulous patients. Two cases are presented here to illustrate use of MMA in edentulous patients with OSA. Our learning points based on these cases are shared, and a treatment and follow-up protocol is proposed for this specific patient group. © 2020 The Authors. Published by Elsevier Ltd.Objectives This study evaluated the influence of thermo-mechanical cycling (TMC) on the bond strength (BS) of a universal adhesive system (UAS - Adper Single Bond Universal, 3M ESPE) to dentin treated or not with 0.2% chlorhexidine (CHX). Methods Eighty human molars were flattened until reach the dentin and separated into 4 groups according to the bonding protocol ENR Group 37% phosphoric acid + 3-step etch-and-rinse adhesive system (ENR); UAS Group UAS in self-etch mode; ENR + CHX Group 37% phosphoric acid + CHX + ENR; UAS + CHX Group CHX + UAS in self-etch mode. After treatments, teeth were restored (Filtek Z350, 3M ESPE). Samples (n = 10) were submitted to aging process stored in distilled water at 37°C/30 days or TMC (ERIOS - 98N/1.6Hz + thermal cycling 5/37/55 °C - 1,200,000 cycles). Specimens were sectioned into sticks (1.0 mm2) and submitted to the microtensile test (Mechanical Test Machine - 0.5 mm/min). Fracture patterns and hybrid layer integrity were analyzed under Stereomicroscope and Scanning Electron Microscopy (SEM). Results The BS results (3-way ANOVA, Bonferroni's test, α = 5%) showed that groups treated with CHX presented higher BS values than control groups; significant in all cases (p .05). When CHX was applied and samples were cycled, UAS revealed higher BS (p less then .05) than ENR. After TMC, cohesive fractures increased for UAS, regardless of CHX application. SEM analysis demonstrated different hybridization patterns for the adhesive systems tested. Conclusion The performance of the universal adhesive system used in self-etch mode was better than that of the 3-step etch-and-rinse adhesive system. Clinical significance Universal adhesive systems have been developed in order to simplify the dentin hybridization protocol. It is important to determine the longevity of the adhesive interface using these bonding materials after chewing. © 2020 Published by Elsevier Ltd.