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https://www.readbyqxmd.com/read/28435696/highlights-from-the-24-th-conference-on-retroviruses-and-opportunistic-infections-13-16-february-2017-seattle-washington-usa
#1
EDITORIAL
Trevor A Crowell, Hermione Lyall, Eva Malatinkova, Sanjay Bhagani, Denise Hsu, Donn J Colby, Christina Polyak, Christina Psomas, Andrew Hill, Esther N Gathogo, Wim Trypsteen, Linos Vandekerckhove, Sabine Kinloch
From the 13th to 16th February 2017, researchers from around the world convened for the 24th annual Conference on Retroviruses and Opportunistic Infections (CROI) at the Washington State Convention Center in Seattle, Washington. The conference was organised by the International Antiviral Society-USA (IAS-USA) in partnership with the CROI Foundation. The conference included over 1000 oral and poster presentations of peer-reviewed original research as well as lectures and symposia featuring insights from leading basic, translational and clinical researchers...
April 1, 2017: Journal of Virus Eradication
https://www.readbyqxmd.com/read/28433864/arsenic-metabolism-and-cancer-risk-a-meta-analysis
#2
REVIEW
Brenda Gamboa-Loira, Mariano E Cebrián, Francisco Franco-Marina, Lizbeth López-Carrillo
OBJECTIVE: To describe the studies that have reported association measures between risk of cancer and the percentage distribution of urinary inorganic arsenic (iAs) metabolites by anatomical site, in non-ecological epidemiological studies. METHODS: Studies were identified in the PubMed database in the period from 1990 to 2015. Inclusion criteria were: non-ecological epidemiological study, with histologically confirmed cancer cases, reporting the percentage distribution of inorganic arsenic (iAs), monomethylated (MMA) and dimethylated (DMA) metabolites, as well as association measures with confidence intervals (CI) between cancer and %iAs and/or %MMA and/or %DMA...
April 20, 2017: Environmental Research
https://www.readbyqxmd.com/read/28433805/chronic-early-childhood-exposure-to-arsenic-is-associated-with-a-tnf-mediated-proteomic-signaling-response
#3
Lisa Smeester, Paige A Bommarito, Elizabeth M Martin, Rogelio Recio-Vega, Tania Gonzalez-Cortes, Edgar Olivas-Calderon, R Clark Lantz, Rebecca C Fry
Exposure to inorganic arsenic (iAs) in drinking water is a global public health concern and is associated with a range of health outcomes, including immune dysfunction. Children are a particularly sensitive population to the effects of inorganic arsenic, yet the biological mechanisms underlying adverse health outcomes are understudied. Here we used a proteomic approach to examine the effects of iAs exposure on circulating serum protein levels in a cross-sectional children's cohort in Mexico. To identify iAs-associated proteins, levels of total urinary arsenic (U-tAs) and its metabolites were determined and serum proteins assessed for differences in expression...
April 8, 2017: Environmental Toxicology and Pharmacology
https://www.readbyqxmd.com/read/28409823/an-s1p1-agonist-asp4058-suppresses-intracranial-aneurysm-through-promoting-endothelial-integrity-and-blocking-macrophage-transmigration
#4
Rie Yamamoto, Tomohiro Aoki, Hirokazu Koseki, Miyuki Fukuda, Jun Hirose, Keiichi Tsuji, Katsumi Takizawa, Shinichiro Nakamura, Haruka Miyata, Nozomu Hamakawa, Hidetoshi Kasuya, Kazuhiko Nozaki, Yoshitaka Hirayama, Ichiro Aramori, Shuh Narumiya
BACKGROUND AND PURPOSE: Intracranial aneurysm (IA), common in general public, causes lethal subarachnoid hemorrhage on rupture. Prevention of rupture of IA is therefore socially important. However, there is currently no medical treatment. Recent studies suggest that IA is a disease of chronic inflammation in the arterial wall caused by endothelial dysfunction and infiltrated macrophages. Sphingosine-1-phosphate receptor type 1 (S1P1 ) is present on the endothelium and promotes its barrier function...
April 13, 2017: British Journal of Pharmacology
https://www.readbyqxmd.com/read/28406269/evaluating-the-feasibility-and-uptake-of-a-community-led-hiv-testing-and-multi-disease-health-campaign-in-rural-uganda
#5
REVIEW
(no author information available yet)
INTRODUCTION: Multi-disease community health campaigns can be effective for population-wide HIV testing in a research setting (SEARCH: NCT01864603). We sought to evaluate feasibility and uptake of a community-led health campaign (CLHC) planned and implemented by village leaders and local clinic workers in Uganda. METHODS: Over five months in 2014, locally elected village leaders and Ministry of Health (MoH) clinic staff in a rural parish in Uganda planned a census followed by a CLHC, after training by two SEARCH trial consultants and by leaders from a neighbouring parish that had previously participated in a SEARCH health campaign...
March 29, 2017: Journal of the International AIDS Society
https://www.readbyqxmd.com/read/28402930/hiv-treatment-and-prevention-an-overview-of-recommendations-from-the-ias-usa-antiretroviral-guidelines-panel
#6
REVIEW
Paul A Volberding
Updated recommendations from the IAS-USA Antiretroviral Guidelines Panel on antiretroviral therapy for the treatment and prevention of HIV infection in adults were published in the Journal of the American Medical Association in 2016. The updated, evidence-based recommendations address when to initiate antiretroviral therapy, recommended initial antiretroviral regimens, including integrase strand transfer inhibitor (InSTI)-based regimens, recommended regimens for persons in whom an InSTI is not an option, and special treatment considerations...
February 2017: Topics in Antiviral Medicine
https://www.readbyqxmd.com/read/28402928/management-of-advanced-fibrosis-in-the-context-of-hepatitis-c-virus-infection
#7
REVIEW
Elizabeth C Verna
Advanced fibrosis may be present in a substantial proportion of individuals with asymptomatic, chronic hepatitis C virus (HCV) infection, including those who have been newly diagnosed. HCV treatment improves all-cause and liver-related mortality in individuals with advanced fibrosis, and there is some evidence that reversal of decompensated liver disease may occur in those with a sustained virologic response. HCV treatment is also crucial for individuals undergoing liver transplantation, as recurrent HCV infection posttransplantation is associated with accelerated fibrosis progression and increased risk of poor outcomes...
February 2017: Topics in Antiviral Medicine
https://www.readbyqxmd.com/read/28402927/hepatitis-c-virus-inflammation-and-cellular-aging-turning-back-time
#8
REVIEW
Susanna Naggie
There is evidence that hepatitis C virus (HCV) infection, like HIV infection, may be associated with chronic inflammation, immune activation, and immune senescence, which contribute to increased risks for cardiometabolic or other diseases outside the liver, as well as to ongoing damage in the liver. These effects may persist after a sustained virologic response (SVR) is achieved with HCV therapy. Such findings support initiation of treatment for HCV-infected individuals before damage to the liver is apparent and monitoring of individuals for complications even after an SVR is achieved...
February 2017: Topics in Antiviral Medicine
https://www.readbyqxmd.com/read/28401260/stent-assisted-coiling-of-wide-neck-bifurcation-aneurysms-with-a-branch-incorporated-in-the-aneurysm-base-long-term-follow-up-in-49-patients-with-53-aneurysms
#9
Boris Lubicz, Ricardo Morais, Pierre-Julien Bruyère, Noémie Ligot, Benjamin Mine
PURPOSE: Wide-neck bifurcation intracranial aneurysms (WNBA) with a branch incorporated in the aneurysm base remain difficult to treat by embolization. We aim to report our long-term follow-up of stent-assisted coiling (SAC) in this subgroup of patients. METHODS: This study was approved by our local ethical committee. A retrospective review of our prospectively maintained database identified all patients treated in our institution by SAC for a WNBA with a branch incorporated in the aneurysm base...
April 11, 2017: Neuroradiology
https://www.readbyqxmd.com/read/28397019/intra-arterial-high-signals-on-arterial-spin-labeling-perfusion-images-predict-the-occluded-internal-carotid-artery-segment
#10
Shu Sogabe, Junichiro Satomi, Yoshiteru Tada, Yasuhisa Kanematsu, Kazuyuki Kuwayama, Kenji Yagi, Shotaro Yoshioka, Yoshifumi Mizobuchi, Hideo Mure, Izumi Yamaguchi, Takashi Abe, Nobuaki Yamamoto, Keiko T Kitazato, Ryuji Kaji, Masafumi Harada, Shinji Nagahiro
PURPOSE: Arterial spin labeling (ASL) involves perfusion imaging using the inverted magnetization of arterial water. If the arterial arrival times are longer than the post-labeling delay, labeled spins are visible on ASL images as bright, high intra-arterial signals (IASs); such signals were found within occluded vessels of patients with acute ischemic stroke. The identification of the occluded segment in the internal carotid artery (ICA) is crucial for endovascular treatment. We tested our hypothesis that high IASs on ASL images can predict the occluded segment...
April 10, 2017: Neuroradiology
https://www.readbyqxmd.com/read/28387895/effects-of-losartan-on-left-ventricular-mass-a-three-year-follow-up-in-elderly-hypertensives-with-myocardial-hypertrophy-despite-successful-conventional-antihypertensive-treatment
#11
C Moroni, S Tolone, F Lopreiato, A R Scrofani, A Bossini, C Affricano, R Cassone, C Gaudio
OBJECTIVE: Reversal of left ventricular hypertrophy (LVH) in hypertensive patients appears to be a desirable goal to the reduction cardiac risk. The Renin-Angiotensin System (RAS) seems to play a major role in the establishment and maintenance of LVH through the activated systemic RAS and the Intracardiac Angiotensin System (IAS). We focused on the effects of a three-year treatment with losartan supplement in hypertensive patients with LVH not responding to eight years of an effective previous antihypertensive pharmacological treatment...
March 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/28387881/review-article-intermediate-alleles-of-huntington-s-disease-htt-gene-in-different-populations-worldwide-a-systematic-review
#12
T A Apolinário, C L A Paiva, L A Agostinho
Huntington's disease (HD) is an autosomal dominant progressive neurodegenerative disorder caused by a dynamic mutation due to the expansion of CAG repeats in the HTT gene (4p16.3). The considered normal alleles have less than 27 CAG repeats. Intermediate alleles (IAs) show 27 to 35 CAG repeats and expanded alleles have more than 35 repeats. The IAs apparently have shown a normal phenotype. However, there are some reported associations between individuals that bear an IA and clinical HD signs, such as behavioral disturbs...
April 5, 2017: Genetics and Molecular Research: GMR
https://www.readbyqxmd.com/read/28379449/an-association-between-k65r-and-hiv-1-subtype-c-viruses-in-patients-treated-with-multiple-nrtis
#13
Erasmus Smit, Ellen White, Duncan Clark, Duncan Churchill, Hongyi Zhang, Simon Collins, Deenan Pillay, Caroline Sabin, Mark Nelson, Alan Winston, Sophie Jose, Anna Tostevin, David T Dunn
Objectives: HIV-1 subtype C might have a greater propensity to develop K65R mutations in patients with virological failure compared with other subtypes. However, the strong association between viral subtype and confounding factors such as exposure groups and ethnicity affects the calculation of this propensity. We exploited the diversity of viral subtypes within the UK to undertake a direct comparative analysis. Patients and methods: We analysed only sequences with major IAS-defined mutations from patients with virological failure...
April 3, 2017: Journal of Antimicrobial Chemotherapy
https://www.readbyqxmd.com/read/28371539/internet-use-patterns-and-internet-addiction-in-children-and-adolescents-with-obesity
#14
H Bozkurt, S Özer, S Şahin, E Sönmezgöz
BACKGROUND: There are no data regarding the Internet addiction (IA) rates and patterns in youth with obesity. OBJECTIVE: This study aimed to explore the prevalence and patterns of IA in children and adolescents with obesity. The relationship between IA and body mass index (BMI) was also investigated. METHODS: Study includes 437 children and adolescents with age ranging from 8 to 17 years: 268 with obesity and 169 with healthy controls. The Internet addiction scale (IAS) form was administered to all participants...
March 28, 2017: Pediatric Obesity
https://www.readbyqxmd.com/read/28370959/therapeutic-plasma-exchange-normalizes-insulin-mediated-response-in-a-child-with-type-1-diabetes-and-insulin-autoimmune-syndrome
#15
Erin F Sharwood, Ian P Hughes, Carel J Pretorius, Peter Trnka, Jane Peake, Tony Huynh
BACKGROUND: Insulin autoimmune syndrome (IAS), characterized by glycemic dysregulation and life-threatening hypoglycemia, can occur in patients with type 1 diabetes (T1D). Diagnostic confirmation is complex but important in order to ensure timely initiation of definitive therapy. AIMS: We aimed to quantitate the degree of immunoglobulin-insulin complex (IIC) formation and its effects on glycemic control in a patient with T1D and IAS compared with T1D and non-T1D controls and before and after therapeutic plasma exchange (TPE)...
March 29, 2017: Pediatric Diabetes
https://www.readbyqxmd.com/read/28370166/mechanism-of-arsenite-toxicity-in-embryonic-stem-cells
#16
Naimisha Beeravolu, Christina McKee, G Rasul Chaudhry
Environmental arsenite exposure has been linked to cancer as well as other diseases, presenting an important and serious public health problem. Toxicity of inorganic arsenite (iAs) has been investigated using animal models and cell culture, yet its developmental effects are poorly understood. This study investigated the molecular mechanism of iAs toxicity to ascertain insight into development and differentiation processes using mouse embryonic stem cells (ESCs). The results showed that iAs exposure affected morphology and integrity of ESC colonies as well as inhibited cell growth in a concentration-dependent manner, excluding concentrations <1 μM iAs which stimulated ESC growth...
April 3, 2017: Journal of Applied Toxicology: JAT
https://www.readbyqxmd.com/read/28362818/vivaxgen-an-open-access-platform-for-comparative-analysis-of-short-tandem-repeat-genotyping-data-in-plasmodium-vivax-populations
#17
Hidayat Trimarsanto, Ernest D Benavente, Rintis Noviyanti, Retno Ayu Setya Utami, Leily Trianty, Zuleima Pava, Sisay Getachew, Jung-Yeon Kim, Youn-Kyoung Goo, Sonam Wangchuck, Yaobao Liu, Qi Gao, Simone Dowd, Qin Cheng, Taane G Clark, Ric N Price, Sarah Auburn
BACKGROUND: The control and elimination of Plasmodium vivax will require a better understanding of its transmission dynamics, through the application of genotyping and population genetics analyses. This paper describes VivaxGEN (http://vivaxgen.menzies.edu.au), a web-based platform that has been developed to support P. vivax short tandem repeat data sharing and comparative analyses. RESULTS: The VivaxGEN platform provides a repository for raw data generated by capillary electrophoresis (FSA files), with fragment analysis and standardized allele calling tools...
March 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28347461/application-of-icp-ms-and-hplc-icp-ms-for-diagnosis-and-therapy-of-a-severe-intoxication-with-hexavalent-chromium-and-inorganic-arsenic
#18
Peter Heitland, Martin Blohm, Christian Breuer, Florian Brinkert, Eike Gert Achilles, Ieva Pukite, Helmut Dietrich Köster
ICP-MS and HPLC-ICP-MS were applied for diagnosis and therapeutic monitoring in a severe intoxication with a liquid containing hexavalent chromium (Cr(VI)) and inorganic arsenic (iAs). In this rare case a liver transplantation of was considered as the only chance of survival. We developed and applied methods for the determination of Cr(VI) in erythrocytes and total chromium (Cr) and arsenic (As) in blood, plasma, urine and liver tissue by ICP-MS. Exposure to iAs was diagnosed by determination of iAs species and their metabolites in urine by anion exchange HPLC-ICP-MS...
May 2017: Journal of Trace Elements in Medicine and Biology
https://www.readbyqxmd.com/read/28346846/dna-methylation-of-the-pdgfd-gene-promoter-increases-the-risk-for-intracranial-aneurysms-and-brain-arteriovenous-malformations
#19
Shengjun Zhou, Xiang Gao, Jie Sun, Zhiqing Lin, Yi Huang
The aim of this study was to determine the role of DNA methylation of the platelet-derived growth factor-D (PDGFD) gene promoter in the development of intracranial aneurysms (IAs) and brain arteriovenous malformations (BAVMs). A total of 70 patients with IAs or BAVMs and 26 control individuals were enrolled for this study. The PDGFD level in the plasma was determined using enzyme-linked immunosorbent assay. DNA methylation levels of seven cytosine-phosphate-guanine (CpG) dinucleotides present in the PDGFD gene promoter were measured using bisulfite pyrosequencing technology...
March 27, 2017: DNA and Cell Biology
https://www.readbyqxmd.com/read/28338434/coexistence-of-obstructive-sleep-apnea-worsens-the-overall-outcome-of-intracranial-aneurysm-a-pioneer-study
#20
Shyamal C Bir, Anil Nanda, Hugo Cuellar, Hai Sun, Bharat Guthikonda, Cesar Liendo, Alireza Minagar, Oleg Y Chernyshev
OBJECTIVE Obstructive sleep apnea (OSA) is associated with the progression of abdominal and thoracic aortic aneurysms. However, the role of OSA in the overall outcome of intracranial aneurysms (IAs) has not yet been established. Authors of this report investigated the role of OSA in the overall outcome of IAs. METHODS Radiological and clinical data on patients (from 2010 through 2015) with confirmed IA were retrospectively reviewed. Significant differences between the OSA and non-OSA groups were determined using a chi-square test...
March 21, 2017: Journal of Neurosurgery
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