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https://www.readbyqxmd.com/read/28449385/linkage-to-hiv-care-after-home-based-hiv-counselling-and-testing-in-sub-saharan-africa-a-systematic-review
#1
REVIEW
Eugene Ruzagira, Kathy Baisley, Anatoli Kamali, Samuel Biraro, Heiner Grosskurth
BACKGROUND: Home-based HIV counselling and testing (HBHCT) has the potential to increase HIV testing uptake in sub-Saharan Africa (SSA) but data on linkage to HIV care after HBHCT are scarce. We conducted a systematic review of linkage to care after HBHCT in SSA. METHODS: Five databases were searched for studies published between 1(st) January 2000 and 19(th) August 2016 that reported on linkage to care among adults newly identified with HIV infection through HBHCT...
April 27, 2017: Tropical Medicine & International Health: TM & IH
https://www.readbyqxmd.com/read/28449332/behavioural-disinhibition-in-the-general-population-during-the-antiretroviral-therapy-roll-out-in-sub-saharan-africa-systematic-review-and-meta-analysis
#2
REVIEW
Eva M Legemate, Jan A C Hontelez, Caspar W N Looman, Sake J De Vlas
OBJECTIVES: Improved life expectancy and reduced transmission probabilities due to ART may result in behavioural disinhibition - i.e. an increase in sexual risk behaviour in response to a perceived lower risk of HIV. We examined trends in sexual risk behaviour in the general population of sub-Saharan African countries 1999 - 2015. METHODS: We systematically reviewed scientific literature of sexual behaviour, and reviewed trends in Demographic and Health Surveys...
April 27, 2017: Tropical Medicine & International Health: TM & IH
https://www.readbyqxmd.com/read/28448581/the-performance-of-bd-facspresto%C3%A2-for-cd4-t-cell-count-cd4-and-hemoglobin-concentration-test-in-ethiopia
#3
Gebremedhin Gebremicael, Yohanes Belay, Fitsum Girma, Yemane Abreha, Atsbeha Gebreegziabxier, Simret Tesfaye, Zelalem Messele, Yibeltal Assefa, Bahrie Bellete, Desta Kassa, Lara Vojnov
INTRODUCTION: In Ethiopia, CD4+ T-cell counting is still required for all patients at baseline before antiretroviral therapy (ART) and to determine eligibility and follow-up of opportunistic infection prophylaxis. However, access to CD4+ T cell count in rural health facilities remains a major challenge in Ethiopia like other resource-limited settings. METHODOLOGY: Both capillary and venous blood was drawn from each of 325 study participant recruited in Addis Ababa and surroundings...
2017: PloS One
https://www.readbyqxmd.com/read/28448083/are-dietary-supplements-and-nutraceuticals-effective-for-musculoskeletal-health-and-cognitive-function-a-scoping-review
#4
G Iolascon, R Gimigliano, M Bianco, A De Sire, A Moretti, A Giusti, N Malavolta, S Migliaccio, A Migliore, N Napoli, P Piscitelli, G Resmini, U Tarantino, F Gimigliano
OBJECTIVE: The aim of our scoping review was to summarize the state of the art regarding micronutrients in order to identify which of them might effectively improve health status in the areas typically impaired in older people: bone, skeletal muscle, and cognitive function. DESIGN: Scoping review. METHODS: The Italian Study Group on Healthy Aging by Nutraceuticals and Dietary Supplements (HANDS) performed this scoping review, based on the following steps: doing a list of micronutrients related with musculoskeletal or cognitive functions, included in dietary supplements and nutraceuticals commercialized in Italy; planning a research on PubMed, according to an evidence-based approach, in order to the most relevant positive study for each micronutrient into each of the three areas involved (bone, skeletal muscle and cognitive function); identifying the micronutrients effective in maintaining or achieving an adequate health status in older people, specifying the effective and safe daily doses, according to the selected studies...
2017: Journal of Nutrition, Health & Aging
https://www.readbyqxmd.com/read/28447457/co3o4-%C3%AE-quantum-dots-as-a-highly-efficient-oxygen-evolution-reaction-catalyst-for-water-splitting
#5
Guangxing Zhang, Jie Yang, Han Wang, Haibiao Chen, Jinlong Yang, Feng Pan
Co3O4-δ quantum dots (Co3O4-δ-QDs) with a crystallite size of approximately 2 nm and oxygen vacancies were fabricated through multicycle lithiation/delithiation of mesoporous Co3O4 nanosheets. Used as an oxygen evolution reaction (OER) electrocatalyst for water splitting, the catalytic performance (an overpotential of 270 mV@10 mA cm-2 and no decay within 30 h) of Co3O4-δ-QDs is superior to that of previously reported Co-based catalysts and the state-of-the-art IrO2. Compared with the Co3O4 nanosheets, the enhanced OER activity of Co3O4-δ-QDs is attributed to two factors: one is the increased quantity of the Faradaic active sites, including the total active sites (q*Total), the most accessible active sites (q*Outer) and their ratio (q*Outer/q*Total); the other is the enhanced intrinsic electroactivity per active site evaluated by the turnover frequency (TOF) and the current density normalized by the most accessible active sites (j/q*Outer) related to OER...
April 27, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28447399/genome-wide-association-study-of-hiv-associated-neurocognitive-disorder-hand-a-charter-group-study
#6
Peilin Jia, Zhongming Zhao, Todd Hulgan, William S Bush, David C Samuels, Cinnamon S Bloss, Robert K Heaton, Ronald J Ellis, Nicholas Schork, Christina M Marra, Ann C Collier, David B Clifford, Benjamin B Gelman, Ned Sacktor, Susan Morgello, David M Simpson, J Allen McCutchan, Jill S Barnholtz-Sloan, Donald R Franklin, Debralee Rosario, Scott L Letendre, Igor Grant, Asha R Kallianpur
HIV-associated neurocognitive disorder (HAND) often complicates HIV infection despite combination antiretroviral therapy (ART) and may be influenced by host genomics. We performed a genome-wide association study (GWAS) of HAND in 1,050 CNS HIV Anti-Retroviral Therapy Effects Research (CHARTER) Study participants. All participants underwent standardized, comprehensive neurocognitive, and neuromedical assessments to determine if they had cognitive impairment as assessed by the Global Deficit Score (GDS), and individuals with comorbidities that could confound diagnosis of HAND were excluded...
April 26, 2017: American Journal of Medical Genetics. Part B, Neuropsychiatric Genetics
https://www.readbyqxmd.com/read/28446781/inkjet-printing-of-high-performance-transistors-with-micron-order-chemically-set-gaps
#7
Peter Mack Grubb, Harish Subbaraman, Saungeun Park, Deji Akinwande, Ray T Chen
This paper reports a 100% inkjet printed transistor with a short channel of approximately 1 µm with an operating speed up to 18.21 GHz. Printed electronics are a burgeoning area in electronics development, but are often stymied by the large minimum feature size. To combat this, techniques were developed to allow for the printings of much shorter transistor channels. The small gap size is achieved through the use of silver inks with different chemical properties to prevent mixing. The combination of the short channel and semiconducting carbon nanotubes (CNT) allows for an exceptional experimentally measured on/off ratio of 10(6)...
April 26, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28445774/voxresnet-deep-voxelwise-residual-networks-for-brain-segmentation-from-3d-mr-images
#8
REVIEW
Hao Chen, Qi Dou, Lequan Yu, Jing Qin, Pheng-Ann Heng
Segmentation of key brain tissues from 3D medical images is of great significance for brain disease diagnosis, progression assessment and monitoring of neurologic conditions. While manual segmentation is time-consuming, laborious, and subjective, automated segmentation is quite challenging due to the complicated anatomical environment of brain and the large variations of brain tissues. We propose a novel voxelwise residual network (VoxResNet) with a set of effective training schemes to cope with this challenging problem...
April 23, 2017: NeuroImage
https://www.readbyqxmd.com/read/28445640/a-highly-active-and-stable-fe-n-c-catalyst-for-oxygen-depolarized-cathode-applications
#9
Jingkun Li, Qingying Jia, Shraboni Ghoshal, Wentao Liang, Sanjeev Mukerjee
Anion immunity towards oxygen reduction reaction (ORR) has tremendous implications in electrocatalysis with applications for fuel cells, metal-air batteries, and oxygen depolarized cathodes (ODCs) in anodic evolution of chlorine. The necessity for exploring ORR catalysts with immunity to anion adsorption is particularly significant considering that platinum group metal (PGM) catalysts are costly and highly vulnerable to impurities such as halides. Herein, we report a metal organic framework (MOF) derived Fe-N-C catalyst that exhibits a dramatically improved half-wave potential of 240 mV compared to the state-of-the-art RhxSy/C catalyst in a rotating disk electrode in the presence of Cl-...
April 26, 2017: Langmuir: the ACS Journal of Surfaces and Colloids
https://www.readbyqxmd.com/read/28445489/video-quality-assessment-using-motion-compensated-temporal-filtering-and-manifold-feature-similarity
#10
Yang Song, Mei Yu, Gangyi Jiang, Feng Shao, Zongju Peng
Well-performed Video quality assessment (VQA) method should be consistent with human visual systems for better prediction accuracy. In this paper, we propose a VQA method using motion-compensated temporal filtering (MCTF) and manifold feature similarity. To be more specific, a group of frames (GoF) is first decomposed into a temporal high-pass component (HPC) and a temporal low-pass component (LPC) by MCTF. Following this, manifold feature learning (MFL) and phase congruency (PC) are used to predict the quality of temporal LPC and temporal HPC respectively...
2017: PloS One
https://www.readbyqxmd.com/read/28444206/the-cost-of-not-re-testing-hiv-misdiagnosis-in-the-art-test-and-offer-era
#11
Jeffrey W Eaton, Cheryl C Johnson, Simon Gregson
We compared estimated costs of re-testing HIV-positive persons before ART initiation to the costs of ART provision to misdiagnosed HIV-negative persons. Savings from averted unnecessary ART costs were greater than re-testing costs within one year using assumptions representative of HIV testing performance in programmatic settings. Countries should implement re-testing before ART initiation.
April 24, 2017: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
https://www.readbyqxmd.com/read/28443678/outcomes-along-the-hiv-care-continuum-among-undocumented-immigrants-in-clinical-care
#12
Jonathan Ross, Uriel R Felsen, Chinazo O Cunningham, Viraj V Patel, David B Hanna
HIV-infected undocumented immigrants face unique barriers to care yet little is known about their clinical outcomes. We performed a retrospective cohort study of HIV-infected adults in clinical care from 2006-2014 at a large academic medical center in a setting where medical insurance is available to HIV-infected undocumented immigrants. Undocumented status was assessed based on Social Security number and insurance status and verified through medical chart review. Using Poisson regression models, we compared undocumented and documented patients with respect to retention in care (≥ 2 HIV-related lab tests ≥ 90 days apart), antiretroviral therapy (ART) prescription (≥ 3 active antiretroviral agents prescribed in a year) and viral suppression (HIV RNA <200 copies/ml for the last measured viral load) for each year in care...
April 26, 2017: AIDS Research and Human Retroviruses
https://www.readbyqxmd.com/read/28442772/discriminative-and-distinct-phenotyping-by-constrained-tensor-factorization
#13
Yejin Kim, Robert El-Kareh, Jimeng Sun, Hwanjo Yu, Xiaoqian Jiang
Adoption of Electronic Health Record (EHR) systems has led to collection of massive healthcare data, which creates oppor- tunities and challenges to study them. Computational phenotyping offers a promising way to convert the sparse and complex data into meaningful concepts that are interpretable to healthcare givers to make use of them. We propose a novel su- pervised nonnegative tensor factorization methodology that derives discriminative and distinct phenotypes. We represented co-occurrence of diagnoses and prescriptions in EHRs as a third-order tensor, and decomposed it using the CP algorithm...
April 25, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28440912/performance-of-in-silico-tools-for-the-evaluation-of-p16ink4a-cdkn2a-variants-in-cagi
#14
Marco Carraro, Giovanni Minervini, Manuel Giollo, Yana Bromberg, Emidio Capriotti, Rita Casadio, Roland Dunbrack, Lisa Elefanti, Pietro Fariselli, Carlo Ferrari, Julian Gough, Panagiotis Katsonis, Emanuela Leonardi, Olivier Lichtarge, Chiara Menin, Pier Luigi Martelli, Abhishek Niroula, Lipika R Pal, Susanna Repo, Maria Chiara Scaini, Mauno Vihinen, Qiong Wei, Qifang Xu, Yuedong Yang, Yizhou Yin, Jan Zaucha, Huiying Zhao, Yaoqi Zhou, Steven E Brenner, John Moult, Silvio C E Tosatto
Correct phenotypic interpretation of variants of unknown significance for cancer-associated genes is a diagnostic challenge as genetic screenings gain in popularity in the next-generation sequencing era. The Critical Assessment of Genome Interpretation (CAGI) experiment aims to test and define the state of the art of genotype-phenotype interpretation. Here, we present the assessment of the CAGI p16INK4a challenge. Participants were asked to predict the effect on cellular proliferation of ten variants for the p16INK4a tumor suppressor, a cyclin-dependent kinase inhibitor encoded by the CDKN2A gene...
April 25, 2017: Human Mutation
https://www.readbyqxmd.com/read/28440264/use-of-testicular-sperm-for-intracytoplasmic-sperm-injection-in-men-with-high-sperm-dna-fragmentation-a-swot-analysis
#15
Sandro C Esteves, Matheus Roque, Nicolás Garrido
Spermatozoa retrieved from the testis of men with high levels of sperm DNA fragmentation (SDF) in the neat semen tend to have better DNA quality. Given the negative impact of SDF on the outcomes of Assisted Reproductive Technology (ART), an increased interest has emerged about the use of testicular sperm for intracytoplasmic sperm injection (Testi-ICSI). In this article, we used a SWOT (strengths, weaknesses, opportunities, and threats) analysis to summarize the advantages and drawbacks of this intervention...
April 18, 2017: Asian Journal of Andrology
https://www.readbyqxmd.com/read/28440014/biomass-derived-n-doped-porous-carbon-supported-single-fe-atoms-as-superior-electrocatalysts-for-oxygen-reduction
#16
Zhengping Zhang, Xinjin Gao, Meiling Dou, Jing Ji, Feng Wang
Exploring sustainable and high-performance electrocatalysts for the oxygen reduction reaction (ORR) is the crucial issue for the large-scale application of fuel cell technology. A new strategy is demonstrated to utilize the biomass resource for the synthesis of N-doped hierarchically porous carbon supported single-atomic Fe (SA-Fe/NHPC) electrocatalyst toward the ORR. Based on the confinement effect of porous carbon and high-coordination natural iron source, SA-Fe/NHPC, derived from the hemin-adsorbed bio-porphyra-carbon by rapid heat-treatment up to 800 °C, presents the atomic dispersion of Fe atoms in the N-doped porous carbon...
April 25, 2017: Small
https://www.readbyqxmd.com/read/28439869/studying-protein-protein-interactions-in-planta-using-advanced-fluorescence-microscopy
#17
Marc Somssich, Rüdiger Simon
The formation of protein complexes through direct protein-protein interaction is essential for virtually every biological process, and accordingly the ability to determine the interaction properties of specific proteins is important to understand these processes. Förster resonance energy transfer (FRET) measurements are state-of-the-art confocal fluorescence microscopy- and imaging-based techniques that allow the analysis of protein interactions in vivo and in planta, in specific compartments of single cells or tissues...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28439754/association-between-depression-and-antiretroviral-therapy-use-among-people-living-with-hiv-a-meta-analysis
#18
REVIEW
Jun Tao, Sten H Vermund, Han-Zhu Qian
Depression is common among people living with HIV (PLHIV). Studies on the relationship between depression and use of antiretroviral therapy (ART) are inconclusive. A meta-analysis was conducted to summarize the relationship between depression and ART use among PLHIV. Ten electronic databases, conference abstracts, and dissertations were searched. A random effects meta-analysis was performed to pool the odds ratio estimates from eligible studies. Subgroup analyses and meta-regression were conducted for moderator analysis...
April 24, 2017: AIDS and Behavior
https://www.readbyqxmd.com/read/28439524/brainsegnet-a-convolutional-neural-network-architecture-for-automated-segmentation-of-human-brain-structures
#19
Raghav Mehta, Aabhas Majumdar, Jayanthi Sivaswamy
Automated segmentation of cortical and noncortical human brain structures has been hitherto approached using nonrigid registration followed by label fusion. We propose an alternative approach for this using a convolutional neural network (CNN) which classifies a voxel into one of many structures. Four different kinds of two-dimensional and three-dimensional intensity patches are extracted for each voxel, providing local and global (context) information to the CNN. The proposed approach is evaluated on five different publicly available datasets which differ in the number of labels per volume...
April 2017: Journal of Medical Imaging
https://www.readbyqxmd.com/read/28439085/a-high-power-and-fast-charging-li-ion-battery-with-outstanding-cycle-life
#20
M Agostini, S Brutti, M A Navarra, S Panero, P Reale, A Matic, B Scrosati
Electrochemical energy storage devices based on Li-ion cells currently power almost all electronic devices and power tools. The development of new Li-ion cell configurations by incorporating innovative functional components (electrode materials and electrolyte formulations) will allow to bring this technology beyond mobile electronics and to boost performance largely beyond the state-of-the-art. Here we demonstrate a new full Li-ion cell constituted by a high-potential cathode material, i.e. LiNi0.5Mn1.5O4, a safe nanostructured anode material, i...
April 24, 2017: Scientific Reports
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