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https://www.readbyqxmd.com/read/28725640/risk-factors-for-impaired-fasting-glucose-or-diabetes-among-hiv-infected-patients-on-art-in-the-copperbelt-province-of-zambia
#1
Perfect Shankalala, Choolwe Jacobs, Samuel Bosomprah, Michael Vinikoor, Patrick Katayamoyo, Charles Michelo
BACKGROUND: Africa has a high prevalence of both Human Immunodeficiency Virus and Non Communicable Diseases (NCDs) but in Zambia there are few data on co-morbid NCDs like Diabetes Mellitus (DM) among HIV-infected individuals. We aimed to identify risk factors for impaired fasting glucose or diabetes among HIV-infected Zambians on long-term Combined Antiretroviral Treatment (cART). METHODS: This was a cross sectional study of adult HIV patients in five health facilities of Copperbelt Province in Zambia...
2017: Journal of Diabetes and Metabolic Disorders
https://www.readbyqxmd.com/read/28725482/systems-biology-driving-drug-development-from-design-to-the-clinical-testing-of-the-anti-erbb3-antibody-seribantumab-mm-121
#2
REVIEW
Birgit Schoeberl, Art Kudla, Kristina Masson, Ashish Kalra, Michael Curley, Gregory Finn, Emily Pace, Brian Harms, Jaeyeon Kim, Jeff Kearns, Aaron Fulgham, Olga Burenkova, Viara Grantcharova, Defne Yarar, Violette Paragas, Jonathan Fitzgerald, Marisa Wainszelbaum, Kip West, Sara Mathews, Rachel Nering, Bambang Adiwijaya, Gabriela Garcia, Bill Kubasek, Victor Moyo, Akos Czibere, Ulrik B Nielsen, Gavin MacBeath
The ErbB family of receptor tyrosine kinases comprises four members: epidermal growth factor receptor (EGFR/ErbB1), human EGFR 2 (HER2/ErbB2), ErbB3/HER3, and ErbB4/HER4. The first two members of this family, EGFR and HER2, have been implicated in tumorigenesis and cancer progression for several decades, and numerous drugs have now been approved that target these two proteins. Less attention, however, has been paid to the role of this family in mediating cancer cell survival and drug tolerance. To better understand the complex signal transduction network triggered by the ErbB receptor family, we built a computational model that quantitatively captures the dynamics of ErbB signaling...
2017: NPJ Systems Biology and Applications
https://www.readbyqxmd.com/read/28725225/antiviral-functions-of-human-immunodeficiency-virus-type-1-hiv-1-specific-igg-antibodies-effects-of-antiretroviral-therapy-and-implications-for-therapeutic-hiv-1-vaccine-design
#3
REVIEW
Martyn A French, M Christian Tjiam, Laila N Abudulai, Sonia Fernandez
Contemporary antiretroviral therapy (ART) is effective and tolerable for long periods of time but cannot eradicate human immunodeficiency virus type 1 (HIV-1) infection by either elimination of viral reservoirs or enhancement of HIV-1-specific immune responses. Boosting "protective" HIV-1-specific immune responses by active or passive immunization will therefore be necessary to control or eradicate HIV-1 infection and is currently the topic of intense investigation. Recently reported studies conducted in HIV patients and non-human primate (NHP) models of HIV-1 infection suggest that HIV-1-specific IgG antibody responses may contribute to the control of HIV-1 infection...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28725208/aldo-van-eyck-s-playgrounds-aesthetics-affordances-and-creativity
#4
Rob Withagen, Simone R Caljouw
After World War II, the Dutch architect Aldo van Eyck developed hundreds of playgrounds in the city of Amsterdam. These public playgrounds were located in parks, squares, and derelict sites, and consisted of minimalistic aesthetic play equipment that was supposed to stimulate the creativity of children. Over the last decades, these playgrounds have been studied by sociologists, theorists of art and architecture, and psychologists. Adopting an ecological approach to the human environment, it is argued that the abstract forms of van Eyck's play sculptures indeed stimulate the creativity of the child...
2017: Frontiers in Psychology
https://www.readbyqxmd.com/read/28724900/enhanced-differential-expression-statistics-for-data-independent-acquisition-proteomics
#5
Tomi Suomi, Laura L Elo
We describe a new reproducibility-optimization method ROPECA for statistical analysis of proteomics data with a specific focus on the emerging data-independent acquisition (DIA) mass spectrometry technology. ROPECA optimizes the reproducibility of statistical testing on peptide-level and aggregates the peptide-level changes to determine differential protein-level expression. Using a 'gold standard' spike-in data and a hybrid proteome benchmark data we show the competitive performance of ROPECA over conventional protein-based analysis as well as state-of-the-art peptide-based tools especially in DIA data with consistent peptide measurements...
July 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28723871/optimal-anti-retroviral-prophylaxis-in-infants-at-high-risk-of-acquiring-human-immunodeficiency-virus-a-systematic-review
#6
Sara Beste, Shaffiq Essajee, George Siberry, Alisse Hannaford, Jasmeen Dara, Nandita Sugandhi, Martina Penazzato
INTRODUCTION: The risk of perinatal HIV infection can be dramatically reduced through maternal antiretroviral therapy (ART) and infant antiretroviral (ARV) postnatal prophylaxis. The 2013 WHO guidelines recommended four to six weeks of nevirapine or zidovudine as post-natal prophylaxis, with possible extension to 12 weeks for high-risk breastfed infants. A systematic review was undertaken to determine if there is evidence for the WHO to recommend enhanced or extended prophylaxis for high-risk infants...
July 18, 2017: Pediatric Infectious Disease Journal
https://www.readbyqxmd.com/read/28723708/subclinical-herpesvirus-shedding-among-hiv-1-infected-men-on-antiretroviral-therapy
#7
Arcadio Agudelo-Hernandez, Yue Chen, Arlene Bullotta, William G Buchanan, Cynthia R Klamar-Blain, Luann Borowski, Sharon A Riddler, Charles R Rinaldo, Bernard Jc Macatangay
DESIGN: We evaluated the subclinical shedding of 6 different herpesviruses in antiretroviral drug-treated HIV(+) men who have sex with men (MSM), and determined how this is associated with markers of inflammation and immune activation. METHODS: We obtained blood, semen, throat washing, urine, and stool from 15 antiretroviral-treated HIV-1-infected MSM with CD4 T cell reconstitution, and 12 age-matched HIV(-) MSM from the Multicenter AIDS Cohort Study at 4 timepoints over 24 weeks to measure DNA levels of cytomegalovirus (CMV), Epstein-Barr virus (EBV), herpes simplex virus 1 and 2, human herpesvirus 6 (HHV6), and HHV8...
July 18, 2017: AIDS
https://www.readbyqxmd.com/read/28723578/convolutional-neural-network-based-encoding-and-decoding-of-visual-object-recognition-in-space-and-time
#8
REVIEW
K Seeliger, M Fritsche, U Güçlü, S Schoenmakers, J-M Schoffelen, S E Bosch, M A J van Gerven
Representations learned by deep convolutional neural networks (CNNs) for object recognition are a widely investigated model of the processing hierarchy in the human visual system. Using functional magnetic resonance imaging, CNN representations of visual stimuli have previously been shown to correspond to processing stages in the ventral and dorsal streams of the visual system. Whether this correspondence between models and brain signals also holds for activity acquired at high temporal resolution has been explored less exhaustively...
July 16, 2017: NeuroImage
https://www.readbyqxmd.com/read/28723333/enhanced-prophylaxis-plus-antiretroviral-therapy-for-advanced-hiv-infection-in-africa
#9
James Hakim, Victor Musiime, Alex J Szubert, Jane Mallewa, Abraham Siika, Clara Agutu, Simon Walker, Sarah L Pett, Mutsa Bwakura-Dangarembizi, Abbas Lugemwa, Symon Kaunda, Mercy Karoney, Godfrey Musoro, Sheila Kabahenda, Kusum Nathoo, Kathryn Maitland, Anna Griffiths, Margaret J Thomason, Cissy Kityo, Peter Mugyenyi, Andrew J Prendergast, A Sarah Walker, Diana M Gibb
BACKGROUND: In sub-Saharan Africa, among patients with advanced human immunodeficiency virus (HIV) infection, the rate of death from infection (including tuberculosis and cryptococcus) shortly after the initiation of antiretroviral therapy (ART) is approximately 10%. METHODS: In this factorial open-label trial conducted in Uganda, Zimbabwe, Malawi, and Kenya, we enrolled HIV-infected adults and children 5 years of age or older who had not received previous ART and were starting ART with a CD4+ count of fewer than 100 cells per cubic millimeter...
July 20, 2017: New England Journal of Medicine
https://www.readbyqxmd.com/read/28722574/intestinal-parasitic-infections-in-human-immunodeficiency-virus-infected-and-noninfected-persons-in-a-high-human-immunodeficiency-virus-prevalence-region-of-cameroon
#10
Céline Nguefeu Nkenfou, Sandrine Mboula Tchameni, Carine Nguefeu Nkenfou, Patrice Djataou, Ulrich Florian Simo, Alexandre Benjamin Nkoum, William Estrin
The problem of intestinal parasitic infection in human immunodeficiency virus (HIV)-infected people requires careful consideration in the developing world where poor nutrition is associated with poor hygiene and several coinfecting diseases. Studies have addressed this issue in Cameroon, especially in the low HIV prevalence area. The current study was conducted to determine the prevalence of intestinal parasitosis in people living with HIV (PLHIV) in Adamaoua and to identify associated risk factors. Stool and blood specimens from study participants were screened for intestinal parasites and anti-HIV antibodies, respectively...
June 26, 2017: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/28722244/risk-of-liver-decompensation-with-cumulative-use-of-mitochondrial-toxic-nucleoside-analogues-in-hiv-hepatitis-c-virus-coinfection
#11
Vincent Lo Re Rd, Bret Zeldow, Michael J Kallan, Janet P Tate, Dena M Carbonari, Sean Hennessy, Jay R Kostman, Joseph K Lim, Matthew Bidwell Goetz, Robert Gross, Amy C Justice, Jason A Roy
PURPOSE: Among patients dually infected with human immunodeficiency virus (HIV) and chronic hepatitis C virus (HCV), use of antiretroviral therapy (ART) containing mitochondrial toxic nucleoside reverse transcriptase inhibitors (mtNRTIs) might induce chronic hepatic injury, which could accelerate HCV-associated liver fibrosis and increase the risk of hepatic decompensation and death. METHODS: We conducted a cohort study among 1747 HIV/HCV patients initiating NRTI-containing ART within the Veterans Aging Cohort Study (2002-2009) to determine if cumulative mtNRTI use increased the risk of hepatic decompensation and death among HIV-/HCV-coinfected patients...
July 19, 2017: Pharmacoepidemiology and Drug Safety
https://www.readbyqxmd.com/read/28720481/knee-extension-and-flexion-strength-asymmetry-in-human-immunodeficiency-virus-positive-subjects-a-cross-sectional-study
#12
Vitor H F Oliveira, Susana L Wiechmann, Argéria M S Narciso, Rafael Deminice
BACKGROUND: Human Immunodeficiency Virus positive subjects present impairment in muscle function, neural activation, balance, and gait. In other populations, all of these factors have been associated with muscle strength asymmetry. OBJECTIVE: To investigate the existence of muscle strength asymmetry between dominant and non-dominant lower limbs and to determine the hamstrings-to-quadriceps strength ratio in Human Immunodeficiency Virus positive subjects. METHODS: In this cross-sectional study, 48 subjects were included (22 men and 26 women; mean age 44...
July 3, 2017: Brazilian Journal of Physical Therapy
https://www.readbyqxmd.com/read/28719295/regional-differences-in-the-prevalence-of-major-opportunistic-infections-among-antiretroviral-na%C3%A3-ve-human-immunodeficiency-virus-patients-in-japan-northern-thailand-northern-vietnam-and-the-philippines
#13
Louie Mar A Gangcuangco, Ikumi Sawada, Naho Tsuchiya, Cuong D Do, Thanh Thuy T Pham, Archawin Rojanawiwat, Marissa Alejandria, Katerina Leyritana, Yoshiyuki Yokomaku, Panita Pathipvanich, Koya Ariyoshi
To identify regional differences in the distribution of opportunistic infections (OIs) among human immunodeficiency virus (HIV)-infected patients in Asia, the medical records of antiretroviral therapy (ART)-naïve patients who attended the following tertiary hospitals from 2003 to 2011 were reviewed: Nagoya Medical Center (NMC, Nagoya, Japan), Lampang Hospital (LPH, Lampang, northern Thailand), Bach Mai Hospital (BMH, Hanoi, northern Vietnam), and Philippine General Hospital (PGH, Manila, Philippines). Logistic regression analyses were performed to identify associations between country of origin and risk of major OIs...
July 2017: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/28719255/patient-reported-adverse-effects-associated-with-combination-antiretroviral-therapy-and-coadministered-enzyme-inducing-antiepileptic-drugs
#14
Melissa A Elafros, Gretchen L Birbeck, Joseph C Gardiner, Omar K Siddiqi, Izukanji Sikazwe, Nigel Paneth, Christopher M Bositis, Jason F Okulicz
AbstractConcurrent treatment with combination antiretroviral therapy (cART) and an enzyme-inducing antiepileptic drug (EI-AED) is common in resource-limited settings; however, the incidence and impact of adverse effects in cotreated patients is largely unknown. Symptoms of adverse effects were assessed by both spontaneous report and checklist for 145 human immunodeficiency virus (HIV)-infected Zambian adults initiating various treatment combinations, such as cART with an EI-AED (N = 20), cART only (N = 43), or neither drug (untreated; N = 82)...
June 2017: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/28718921/homology-homoplasy-and-cusp-variability-at-the-enamel-dentine-junction-of-hominoid-molars
#15
Alejandra Ortiz, Shara E Bailey, Jean-Jacques Hublin, Matthew M Skinner
Evolutionary studies of mammalian teeth have generally concentrated on the adaptive and functional significance of dental features, whereas the role of development on phenotypic generation and as a source of variation has received comparatively little attention. The present study combines an evolutionary biological framework with state-of-the-art imaging techniques to examine the developmental basis of variation of accessory cusps. Scholars have long used the position and relatedness of cusps to other crown structures as a criterion for differentiating between developmentally homologous and homoplastic features, which can be evaluated with greater accuracy at the enamel-dentine junction (EDJ)...
July 18, 2017: Journal of Anatomy
https://www.readbyqxmd.com/read/28718515/impact-of-single-nucleotide-polymorphisms-on-plasma-concentrations-of-efavirenz-and-lopinavir-ritonavir-in-chinese-children-infected-with-the-human-immunodeficiency-virus
#16
Xia Liu, Qing Ma, Yan Zhao, Weiwei Mu, Xin Sun, Yuewu Cheng, Huiping Zhang, Ye Ma, Fujie Zhang
Single-nucleotide polymorphisms (SNPs) in the genes that encode the cytochrome P450 (CYP) drug metabolizing enzymes and drug transporters have been reported to influence antiretroviral drug pharmacokinetics. While primarily metabolized by CYP2B6 and -3A, efavirenz (EFV) and lopinavir/ritonavir (LPV/r) are substrates of P-glycoprotein and solute carrier organic (SLCO) anion transporter, respectively OBJECTIVE: To investigate the association between SNPs and efavirenz (EFV) or lopinavir/ritonavir (LPV/r) concentrations in Chinese children infected with the human immunodeficiency virus (HIV) METHODS: Genotyping was performed on CYP2B6 516G→T, -1459C→T, and -983T→C, ABCB1 3435C→T, and SLCO1B1 521T→C in 229 HIV-infected Chinese pediatric patients with an age range from 4...
July 17, 2017: Pharmacotherapy
https://www.readbyqxmd.com/read/28716714/functional-density-and-edge-maps-characterizing-functional-architecture-in-individuals-and-improving-cross-subject-registration
#17
Tong Tong, Iman Aganj, Tian Ge, Jonathan R Polimeni, Bruce Fischl
Population-level inferences and individual-level analyses are two important aspects in functional magnetic resonance imaging (fMRI) studies. Extracting reliable and informative features from fMRI data that capture biologically meaningful inter-subject variation is critical for aligning and comparing functional networks across subjects, and connecting the properties of functional brain organization with variations in behavior, cognition and genetics. In this study, we derive two new measures, which we term functional density map and edge map, and demonstrate their usefulness in characterizing the function of individual brains...
July 14, 2017: NeuroImage
https://www.readbyqxmd.com/read/28716426/hormone-dependent-uterine-epithelial-stromal-communication-for-pregnancy-support
#18
Xiaoqiu Wang, San-Pin Wu, Francesco J DeMayo
Human fertility is a relatively inefficient process. Despite the presence of visibly healthy embryos, 30% of pregnancies generated by assisted reproductive technology (ART) fail before the second trimester. The uterine microenvironment plays a critical role in establishing and maintaining a successful pregnancy that requires coordinated communication between the epithelial and stromal cells of the endometrium. The epithelial cells must cease proliferation and become permissive for the conceptus (embryo and associated extraembryonic membranes), while the stromal cells undergoes mesenchymal-to-epithelioid transformation to form the decidua in support of subsequent embryo development...
July 6, 2017: Placenta
https://www.readbyqxmd.com/read/28715973/the-molecular-basis-for-human-immunodeficiency-virus-latency
#19
Uri Mbonye, Jonathan Karn
Although potent combination antiretroviral therapy can effectively block viral replication in the host, human immunodeficiency virus (HIV) persists due to the existence of latent but replication-competent proviruses residing primarily in a very small population of resting memory CD4(+) T cells. Viral latency is established when the expression of the autoregulatory viral trans-activating factor Tat is reduced to subthreshold levels. The absence of Tat reduces HIV transcription and protein production to levels that make the host cell invisible to the immune system and refractory to antiretroviral treatment...
July 17, 2017: Annual Review of Virology
https://www.readbyqxmd.com/read/28715367/microfluidic-imaging-flow-cytometry-by-asymmetric-detection-time-stretch-optical-microscopy-atom
#20
Anson H L Tang, Queenie T K Lai, Bob M F Chung, Kelvin C M Lee, Aaron T Y Mok, G K Yip, Anderson H C Shum, Kenneth K Y Wong, Kevin K Tsia
Scaling the number of measurable parameters, which allows for multidimensional data analysis and thus higher-confidence statistical results, has been the main trend in the advanced development of flow cytometry. Notably, adding high-resolution imaging capabilities allows for the complex morphological analysis of cellular/sub-cellular structures. This is not possible with standard flow cytometers. However, it is valuable for advancing our knowledge of cellular functions and can benefit life science research, clinical diagnostics, and environmental monitoring...
June 28, 2017: Journal of Visualized Experiments: JoVE
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