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https://www.readbyqxmd.com/read/29684583/a-novel-rpe65-inhibitor-cu239-suppresses-visual-cycle-and-prevents-retinal-degeneration
#1
Younghwa Shin, Gennadiy Moiseyev, Konstantin Petrukhin, Christopher L Cioffi, Parthasarathy Muthuraman, Yusuke Takahashi, Jian-Xing Ma
The retinoid visual cycle is an ocular retinoid metabolism specifically dedicated to support vertebrate vision. The visual cycle serves not only to generate light-sensitive visual chromophore 11-cis-retinal, but also to clear toxic byproducts of normal visual cycle (i.e. all-trans-retinal and its condensation products) from the retina, ensuring both the visual function and the retinal health. Unfortunately, various conditions including genetic predisposition, environment and aging may attribute to a functional decline of the all-trans-retinal clearance...
April 20, 2018: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/29684573/bevacizumab-reduces-s100a9-mdsc-linked-to-intracranial-control-in-patients-with-egfr-mutant-lung-adenocarcinoma
#2
Po-Hao Feng, Kuan-Yuan Chen, Yu-Chen Huang, Ching-Shan Luo, Shen Ming Wu, Tzu-Tao Chen, Chun-Nin Lee, Chi-Tai Yeh, Hsiao-Chi Chuang, Chia-Li Han, Chiou-Feng Lin, Wei-Hwa Lee, Chih-Hsi Kuo, Kang-Yun Lee
BACKGROUND: In vitro models have demonstrated immune-modulating effects of bevacizumab. Combinations of EGFR tyrosine kinase inhibitor (TKI) with bevacizumab improve progression free survival (PFS) in patients with EGFR mutated lung adenocarcinoma. How bevacizumab confers this clinical effect and underlying mechanisms are not clear. PATIENT AND METHODS: Fifty-five patients with stage 4 EGFR mutated lung adenocarcinoma were enrolled. Myeloid derived suppressor cells (MDSCs), T helper cells (Th1/Th2) and cytotoxic T lymphocytes (CTLs) were analyzed by flow cytometry...
April 20, 2018: Journal of Thoracic Oncology
https://www.readbyqxmd.com/read/29684379/effect-of-a-long-term-treatment-with-metformin-in-dystrophic-mdx-mice-a-reconsideration-of-its-potential-clinical-interest-in-duchenne-muscular-dystrophy
#3
Paola Mantuano, Francesca Sanarica, Elena Conte, Maria Grazia Morgese, Roberta Francesca Capogrosso, Anna Cozzoli, Adriano Fonzino, Angelo Quaranta, Jean-Francois Rolland, Michela De Bellis, Giulia Maria Camerino, Luigia Trabace, Annamaria De Luca
The pharmacological stimulation of AMP-activated protein kinase (AMPK) via metabolic enhancers has been proposed as potential therapeutic strategy for Duchenne muscular dystrophy (DMD). Metformin, a widely-prescribed anti-hyperglycemic drug which activates AMPK via mitochondrial respiratory chain, has been recently tested in DMD patients in synergy with nitric oxide (NO)-precursors, with encouraging results. However, preclinical data supporting the use of metformin in DMD are still poor, and its actions on skeletal muscle appear controversial...
April 20, 2018: Biochemical Pharmacology
https://www.readbyqxmd.com/read/29684255/molecular-profiling-of-post-reperfusion-milieu-determines-acute-kidney-injury-after-liver-transplantation-a-prospective-study
#4
Carlo Pulitano, Phong Ho, Deborah Verran, Charbel Sandroussi, David Joseph, David G Bowen, Geoffrey W McCaughan, Michael Crawford, Nicholas Shackel
Acute kidney injury (AKI) after liver transplantation (LT) is a common event, but its pathogenesis remains unclear. The aim of this prospective study is to investigate the potential relationship between post-reperfusion gene expression, serum mediators, and the onset of AKI after LT. Sixty-five consecutive patients undergoing LT were included in the study. Reverse transcription polymerase chain reaction (RT- PCR), was performed on liver biopsies. Gene expression of 23 genes involved in ischemia reperfusion injury (IRI) was evaluated...
April 23, 2018: Liver Transplantation
https://www.readbyqxmd.com/read/29684247/tr1-cell-immunotherapy-promotes-transplant-tolerance-via-de-novo-tr1-cell-induction-in-mice-and-is-safe-and-effective-during-acute-viral-infection
#5
Tatiana Jofra, Roberta Di Fonte, Giuseppe Galvani, Mirela Kuka, Matteo Iannacone, Manuela Battaglia, Georgia Fousteri
Tr1 cell therapy is considered an emerging approach to improve transplant tolerance and enhance allogeneic graft survival. However, it remains unclear how Tr1 cells promote transplant tolerance and whether they will be safe and stable in the face of an acute viral infection. By employing a mouse model of pancreatic islet transplantation, we report that Tr1 cell therapy promoted transplant tolerance via de novo induction of Tr1 cells in the recipients. Acute viral infection with lymphocytic choriomeningitis virus (LCMV) had no impact on Tr1 cell number and function, neither on the Tr1 cells infused nor on the ones induced, and that was reflected in the robust maintenance of the graft...
April 23, 2018: European Journal of Immunology
https://www.readbyqxmd.com/read/29683765/modeling-cumulative-overall-prevention-efficacy-for-the-vrc01-phase-2b-efficacy-trials
#6
Yunda Huang, Shelly Karuna, Lindsay N Carpp, Daniel Reeves, Amarendra Pegu, Kelly Seaton, Kenneth Mayer, Joshua Schiffer, John Mascola, Peter B Gilbert
The Antibody Mediated Prevention trials are assessing whether intravenously-administered VRC01 (10 mg/kg or 30 mg/kg vs placebo) can prevent HIV infection. In a modeling exercise, we used two models to predict the overall prevention efficacy (PE) of each VRC01 dose in preventing HIV infection. For the first per-exposure PE model, parameters were estimated from studies where nonhuman primates (NHPs) were administered high-dose intra-rectal simian-human immunodeficiency virus challenge two days post-VRC01 infusion at various dosages ("NHP model")...
April 23, 2018: Human Vaccines & Immunotherapeutics
https://www.readbyqxmd.com/read/29683542/usefulness-of-the-architect-chagas-%C3%A2-assay-as-a-single-test-for-the-diagnosis-of-chronic-chagas-disease
#7
Ana Pérez-Ayala, Isabel Fradejas, Lourdes Rebollo, David Lora-Pablos, Manuel Lizasoain, J M Herrero-Martínez
OBJECTIVES: Imported Chagas disease (CD) is an emerging health problem in Europe due to immigration from endemic countries. Although WHO currently recommends two different serological methods to establish diagnosis, new tools like the Architect Chagas assay have potential for use as a single diagnostic test. Our objective was to determine an optimal signal-to-cutoff (S/CO) value for the Architect Chagas assay to diagnose CD with a single test. METHODS: A retrospective study conducted at the 12 de Octubre University Hospital (Madrid, Spain)...
April 23, 2018: Tropical Medicine & International Health: TM & IH
https://www.readbyqxmd.com/read/29683538/effectiveness-of-viable-cryopreserved-placental-membranes-for-management-of-diabetic-foot-ulcers-in-a-real-world-setting
#8
Katherine M Raspovic, Dane K Wukich, Daniel Q Naiman, Lawrence A Lavery, Robert S Kirsner, Paul J Kim, John S Steinberg, Christopher E Attinger, Alla Danilkovitch
In a multicenter randomized controlled trial (RCT), the use of viable cryopreserved placental membrane (vCPM) for chronic diabetic foot ulcers (DFUs) resulted in a higher proportion of wound closure in comparison to good wound care: 62% vs. 21% (p < 0.01). However, patients in RCTs are not representative of daily physician practice. Healthcare databases serve as a valuable tool to evaluate therapy effectiveness and to supplement evidence from RCTs. The objective of this study was to evaluate the effectiveness of vCPM for DFU management using Net Health's WoundExpert® electronic health records (EHR)...
April 23, 2018: Wound Repair and Regeneration
https://www.readbyqxmd.com/read/29683527/modulation-of-allergic-responses-by-mitochondrial-stat3-inhibitors
#9
Tal Erlich, Israa Sharkia, Nadine Landolina, Miri Assayag, Omer Goldberger, Neville Berkman, Francesca Levi-Schafer, Ehud Razin
Recently we have shown that mast cell mitochondrial STAT3 could serve as a new target for the regulation of the allergic response as it plays an essential role in immunologically-mediated degranulation of mast cells. In the present work, we explored how two recently developed mitochondrial STAT3 inhibitors (Mitocur-1 and Mitocur-3) modulate the allergic response. Here we show that treatment of rodent and human cultured mast cells with low concentrations of mitochondrial STAT3 inhibitors had no effect on STAT3 target gene expression...
April 23, 2018: Allergy
https://www.readbyqxmd.com/read/29683526/homozygote-c-c-at-rs12543318-was-risk-factor-for-non-syndromic-cleft-lip-only-from-western-han-chinese-population
#10
Bi-He Zhang, Ning Huang, Jia-Yu Shi, Bing Shi, Zhong-Lin Jia
Non-syndromic cleft lip with or without cleft palate (NSCL/P) is a complex disorder, it results from both of the genetic modifiers and environmental factors, with genetic modifiers contributed to it more than environmental factors. GWASs studies made great progress in identifying the candidate genes for NSCL/P, but the findings needs to be replicated in other populations. In this study, we selected eleven SNPs from recent GWASs and GWAS meta-analysis to investigate their associations among 308 NSCL/P trios (134 non-syndromic cleft lip only (NSCLO) trios and 174 non-syndromic cleft lip with cleft palate (NSCLP) trios) from Han Chinese population...
April 23, 2018: Journal of Oral Pathology & Medicine
https://www.readbyqxmd.com/read/29683236/odontogenic-myxoma-an-updated-analysis-of-1692-cases-reported-in-the-literature
#11
REVIEW
Bruno Ramos Chrcanovic, Ricardo Santiago Gomez
OBJECTIVE: To integrate the available data published on odontogenic myxoma (OM) into a comprehensive analysis of its clinical/radiologic features. METHODS: Electronic search undertaken in January/2018, looking for publications reporting cases of OM. RESULTS: 377 publications included. We identified 1692 lesions and 695 were used for analysis of recurrence. There is predominance of OMs in females and in mandibles. OMs usually present with bone expansion, asymptomatic cortical perforation, multilocular...
April 23, 2018: Oral Diseases
https://www.readbyqxmd.com/read/29683226/low-incidence-of-heparin-induced-skin-lesions-in-orthopedic-surgery-patients-with-low-molecular-weight-heparins
#12
M Schindewolf, M Paulik, H Kroll, R Kaufmann, M Wolter, W-H Boehncke, E Lindhoff-Last, A Recke, R J Ludwig
BACKGROUND: Heparins are widely prescribed for prevention and therapy of arterial and venous thromboembolic diseases. Heparin-induced skin lesions are the most frequent adverse effects of subcutaneous heparin treatment in non-surgical patients (7.5-39.8%); no data exist on surgical patients. Commonly, they are due to a delayed-type hypersensitivity reaction (DTH), but may also be a manifestation of life-threatening heparin-induced thrombocytopenia (HIT). Lesions of both entities resemble initially...
April 23, 2018: Clinical and Experimental Allergy: Journal of the British Society for Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/29683219/response-of-consumer-and-research-grade-indoor-air-quality-monitors-to-residential-sources-of-fine-particles
#13
Brett C Singer, William W Delp
The ability to inexpensively monitor PM2.5 to identify sources and enable controls would advance residential indoor air quality (IAQ) management. Consumer IAQ monitors incorporating low-cost optical particle sensors and connections with smart home platforms could provide this service if they reliably detect PM2.5 in homes. In this study, particles from typical residential sources were generated in a 120 m3 laboratory and time-concentration profiles were measured with seven consumer monitors (2-3 units each), two research monitors (Thermo pDR-1500, MetOne BT-645), a Grimm Mini Wide-Range Aerosol Spectrometer (GRM), and a Tapered Element Oscillating Microbalance with Filter Dynamic Measurement System (FDMS), a federal equivalent method (FEM) for PM2...
April 23, 2018: Indoor Air
https://www.readbyqxmd.com/read/29683214/piezo1-functions-as-a-potential-oncogene-by-promoting-cell-proliferation-and-migration-in-gastric-carcinogenesis
#14
Jinglin Zhang, Yuhang Zhou, Tingting Huang, Feng Wu, Liping Liu, Johnny S H Kwan, Alfred S L Cheng, Jun Yu, Ka Fai To, Wei Kang
Gastric cancer (GC) is one of the most common malignancies in Asian areas. PIEZO1 has been implied to regulate epithelial homeostasis to play an important role in physiological processes. It is also related to tumor initiation and progression. However, the role of PIEZO1 has not yet been explored in GC. The expression of PIEZO1 in GC cell lines and primary samples was determined by qRT-PCR and Western blot. The clinical correlation of PIEZO1 in GC was evaluated by immunohistochemistry on tissue microarray. The oncogenic role of PIEZO1 was demonstrated in gastric tumorigenesis through a series of functional assays, including cell proliferation, cell invasion and flow cytometry analysis...
April 23, 2018: Molecular Carcinogenesis
https://www.readbyqxmd.com/read/29683023/is-there-a-need-for-better-sexual-education-of-young-men-sexual-behaviour-and-reproductive-health-in-swiss-university-students-a-questionnaire-based-pilot-study
#15
Gabriele Susanne Merki-Feld, Stephanie Felder, Conrad Roelli, Bruno Imthurn, Mary Stewart, Deborah Bateson
OBJECTIVES: There is evidence that men's perception of contraceptive methods and of their effectiveness and health risks have a major impact on couples contraceptive choices. Engaging men in decision making improves reproductive health outcomes. If they are better informed, men can potentially contribute to more effective use of contraception, thus reducing the rate of sexually transmitted infections and abortion. In Central European countries, few data are available on male contraceptive knowledge and behaviour...
April 23, 2018: European Journal of Contraception & Reproductive Health Care
https://www.readbyqxmd.com/read/29682918/a-population-based-analysis-of-the-influence-of-religious-affiliation-on-alcohol-consumption-among-jamaicans
#16
Steve Weaver, Daniel C Oshi, Wendel D Abel, Tania Rae, Sarah N Oshi, Patrice Whitehorne Smith, Tana Ricketts Roomes, Chinwendu F Agu
Background: Religion sometimes shapes behaviours and experiences of its members including alcohol consumption. The aim of this study was to examine the possible influence of religious affiliation on alcohol consumption in Jamaica since they are predominantly Christians. Methods: Using a cross-sectional study design, we analysed data from National Household Survey 2,016 of 4,623 participants. Descriptive and inferential statistics were performed using SPSS. Results: Out of the 4,623 participants, majority 3,244 (70...
April 23, 2018: Asian Pacific Journal of Cancer Prevention: APJCP
https://www.readbyqxmd.com/read/29682917/are-adolescents-likely-to-start-smoking-early-if-their-parents-are-smokers-a-study-of-jamaican-high-school-students
#17
Chinwendu F Agu, Steve Weaver, Wendel D Abel, Tania Rae, Sarah N Oshi, Patrice Whitehorne Smith, Kingsley N Ukwaja, Tana Ricketts Roomes, Ijeoma Meka, Daniel C Oshi
Background: The prevalence of cigarette smoking is high among adolescents in the Caribbean, including Jamaica. Age of initiation of cigarette smoking varies among adolescents. A number of factors has been reported to influence early age of initiation of cigarette smoking. The aim of this study was to determine if parental smoking status was associated with early age of onset of cigarette smoking among Jamaican adolescents. Methods: Data from the Jamaican National School Survey (NSS) conducted in 2013 were analysed...
April 23, 2018: Asian Pacific Journal of Cancer Prevention: APJCP
https://www.readbyqxmd.com/read/29682907/effects-of-increasing-hydrophobicity-by-n-terminal-myristoylation-on-the-antibacterial-and-hemolytic-activities-of-the-c-terminal-cationic-segments-of-human-%C3%AE-defensins-1-3
#18
Krishnakumari Viswanatha, Ankeeta Guru, Harikrishna Adicherla, Nagaraj Ramakrishnan
Analogs of the cationic C-terminal segments of human-β-defensins HBD1-3, Phd1-3 with a single disulfide bond, exhibited comparable antimicrobial activity that were salt sensitive. They did not show hemolytic activity. In the present study, N-terminal myristoylation was carried out on Phd1-3 to examine whether increasing hydrophobicity would result in improved antibacterial activity. The antibacterial activity of the oxidized myristoylated peptides MPhd1-3 and their reduced forms MPhd1r-3r was determined. These peptides showed enhanced antibacterial activity as compared to Phd1-3, on mid-log phase and stationary phase of Staphylococcus aureus and Escherichia coli, except MPhd1r-3r that were inactive on stationary phase E...
April 23, 2018: Chemical Biology & Drug Design
https://www.readbyqxmd.com/read/29682887/biological-effects-of-ni-ii-on-monocytes-and-macrophages-in-normal-and-hyperglycemic-environments
#19
Monica Chana, Jill B Lewis, Ryan Davis, Yolanda Elam, David Hobbs, Petra E Lockwood, John C Wataha, Regina L Messer
Corrosion and release of nickel ions from biomedical alloys are well documented, but little is still known about the effects of released nickel ions on cellular function with recurrent inflammatory challenges. Evidence suggests Ni(II) ions amplify LPS-induced secretion of several pro-inflammatory cytokines from monocytes. Exacerbating the inflammatory response, hyperglycemic conditions also affect monocytic function. This study investigated how Ni(II) and hyperglycemic conditions, both singly and in combination, alter monocyte proliferation, mitochondrial activity, inflammatory responses, and differentiation...
April 16, 2018: Journal of Biomedical Materials Research. Part A
https://www.readbyqxmd.com/read/29682866/metapopulation-dynamics-in-a-changing-climate-increasing-spatial-synchrony-in-weather-conditions-drives-metapopulation-synchrony-of-a-butterfly-inhabiting-a-fragmented-landscape
#20
Aapo Kahilainen, Saskya van Nouhuys, Torsti Schulz, Marjo Saastamoinen
Habitat fragmentation and climate change are both prominent manifestations of global change, but there is little knowledge on the specific mechanisms of how climate change may modify the effects of habitat fragmentation, e.g. by altering dynamics of spatially structured populations. The long-term viability of metapopulations is dependent on independent dynamics of local populations, because it mitigates fluctuations in the size of the metapopulation as a whole. Metapopulation viability will be compromised if climate change increases spatial synchrony in weather conditions associated with population growth rates...
April 23, 2018: Global Change Biology
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