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https://www.readbyqxmd.com/read/29334547/quality-of-life-improvement-in-resource-limited-settings-after-one-year-of-second-line-antiretroviral-therapy-use-among-adult-men-and-women
#1
Thiago S Torres, Linda J Harrison, Alberto M La Rosa, Sandra W Cardoso, Lu Zheng, McNeil Ngongondo, Fatma Some, Umesh G Lalloo, Thando Mwelase, Ann C Collier, Michael D Hughes
OBJECTIVE: We evaluated improvement of quality of life (QoL) after one year of second-line antiretroviral therapy (ART) use in resource-limited settings (RLS) among adult men and women, comparing two randomized treatment arms. DESIGN: ACTG A5273 was a randomized clinical trial of second-line ART comparing lopinavir/ritonavir (LPV/r) + raltegravir (RAL) with LPV/r + nucleos(t)ide reverse transcriptase inhibitors (NRTIs) in participants failing a non-nucleoside reverse transcriptase inhibitor (NNRTI)-containing regimen at 15 sites in 9 RLS...
January 13, 2018: AIDS
https://www.readbyqxmd.com/read/29217966/lpv-modeling-of-a-flexible-wing-aircraft-using-modal-alignment-and-adaptive-gridding-methods
#2
Ali Khudhair Al-Jiboory, Guoming Zhu, Sean Shan-Min Swei, Weihua Su, Nhan T Nguyen
One of the earliest approaches in gain-scheduling control is the gridding based approach, in which a set of local linear time-invariant models are obtained at various gridded points corresponding to the varying parameters within the flight envelop. In order to ensure smooth and effective Linear Parameter-Varying control, aligning all the flexible modes within each local model and maintaining small number of representative local models over the gridded parameter space are crucial. In addition, since the flexible structural models tend to have large dimensions, a tractable model reduction process is necessary...
July 2017: Aerospace Science and Technology
https://www.readbyqxmd.com/read/29210790/management-of-1-lung-ventilation-variation-and-trends-in-clinical-practice-a-report-from-the-multicenter-perioperative-outcomes-group
#3
Douglas A Colquhoun, Bhiken I Naik, Marcel E Durieux, Amy M Shanks, Sachin Kheterpal, S Patrick Bender, Randal S Blank
BACKGROUND: Lung-protective ventilation (LPV) has been demonstrated to improve clinical outcomes in surgical patients. There are very limited data on the current use of LPV for patients undergoing 1-lung ventilation (1LV) despite evidence that 1LV may be a particularly important setting for its use. In this multicenter study, we report trends in ventilation practice for patients undergoing 1LV. METHODS: The Multicenter Perioperative Outcomes Group database was used to identify patients undergoing 1LV...
November 22, 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/29200060/changing-default-ventilator-settings-on-anesthesia-machines-improves-adherence-to-lung-protective-ventilation-measures
#4
Sunny S Chiao, Douglas A Colquhoun, Bhiken I Naik, Jennie Z Ma, Edward C Nemergut, Marcel E Durieux, Randal S Blank, Katherine T Forkin
Perioperative lung-protective ventilation (LPV) can reduce perioperative pulmonary morbidity. We hypothesized that modifying default anesthesia machine ventilator settings would increase the use of intraoperative LPV. Default tidal volume settings on our anesthesia machines were decreased from 600 to 400 mL, and default positive end-expiratory pressure was increased from 0 to 5 cm H2O. This modification increased mean positive end-expiratory pressure from 3.1 to 5.0 cm H2O and decreased mean tidal volume from 8...
November 30, 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/29189677/defining-study-outcomes-that-better-reflect-individual-response-to-treatment
#5
Konstantia Nadia Angelidou, Paul Palumbo, Jane Lindsey, Avy Violary, Moherndran Archary, Linda Barlow, Brian Claggett, Michael Hughes, Lee-Jen Wei
BACKGROUND: Most clinical trials comparing treatments evaluate the separate effects on each of several efficacy and toxicity outcomes. However, population-averaged summary measures of treatment differences may not accurately reflect individual responses to treatment, and drawing conclusions about which treatment is "best" is straightforward if one treatment is superior across all outcomes, but challenging when this is not the case. METHODS: We created a study outcome based on expert opinion, which captures the risk/benefit profile of response to a treatment...
November 17, 2017: Pediatric Infectious Disease Journal
https://www.readbyqxmd.com/read/29165225/prevalence-of-asymptomatic-parasitemia-and-gametocytemia-in-hiv-infected-children-on-differing-antiretroviral-therapy
#6
Charlotte V Hobbs, Erin E Gabriel, Portia Kamthunzi, Gerald Tegha, Jean Tauzie, Yonghua Li, Tiina Ilmet, Elena Artimovich, Jillian Neal, Ted Hall, Sunil Parikh, Brian Kirmse, Patrick Jean-Philippe, Jingyang Chen, William R Prescott, Paul Palumbo, Patrick E Duffy, William Borkowsky, For The P S Study Team
Laboratory data and prior pediatric reports indicate that HIV protease inhibitor (PI)-based antiretroviral therapy (ARV) kills gametocytes and reduces rates of gametocytemia, but not asymptomatic parasitemia, in a high malaria-transmission area. To determine whether ARV regimen impacts these rates in areas with less-intense malaria transmission, we compared asymptomatic parasitemia and gametocytemia rates in HIV-infected children by ARV regimen in Lilongwe, Malawi, an area of low-to-moderate transmission intensity...
November 20, 2017: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/29136115/estradiol-levels-are-altered-in-human-immunodeficiency-virus-infected-pregnant-women-randomized-to-efavirenz-versus-lopinavir-ritonavir-based-antiretroviral-therapy
#7
Chloe R McDonald, Andrea L Conroy, Joel L Gamble, Eszter Papp, Michael Hawkes, Peter Olwoch, Paul Natureeba, Moses Kamya, Michael Silverman, Deborah Cohan, Catherine A Koss, Grant Dorsey, Kevin C Kain, Lena Serghides
Background: Combination antiretroviral therapy (cART) use in pregnancy has been associated with hormonal dysregulation. We performed a secondary retrospective analysis of longitudinal progesterone and estradiol levels in pregnancy using specimens from the Protease Inhibitors to Reduce Malaria Morbidity in HIV-infected Pregnant Women study, which randomized Ugandan human immunodeficiency virus (HIV)-infected ART-naive women to initiate either lopinavir/ritonavir (LPV/r)-based or efavirenz (EFV)-based cART...
November 10, 2017: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
https://www.readbyqxmd.com/read/29098988/evaluating-nanoscale-ultra-thin-metal-films-by-means-of-lateral-photovoltaic-effect-in-metal-semiconductor-structure
#8
Diyuan Zheng, Chongqi Yu, Qian Zhang, Hui Wang
Nanoscale metal-semiconductor (MS) structure materials occupy an important position in semiconductor and microelectronic field due to its abundant physical phenomena and effects. The thickness of metal films is a critical factor in determining characteristics of MS devices. How to detect or evaluate the metal thickness is always a key issue for realizing high performance MS devices. In this work, we propose a direct surface detection by use of the lateral photovoltaic effect (LPE) in MS structure, which can not only measure nanoscale thickness, but also detect the fluctuation of metal films...
November 3, 2017: Nanotechnology
https://www.readbyqxmd.com/read/29082657/segmental-branching-pattern-of-the-left-portal-vein-anatomical-characteristics-and-clinical-implications
#9
Haythem Najah, Houssem Ammar, Rahul Gupta, Moncef Hamdoun, Abdelwaheb Morjane, Mohamed Mongi Mighri, Sadok Sassi
The existing knowledge on anatomy of segmental branches of left portal vein (LPV) is limited. This study aims to describe the surgical anatomy and variations of LPV and its segmental branching pattern. Forty fresh cadaveric liver dissections were performed. The dissection of LPV was carried out from its emergence at the level of the portal vein bifurcation to its segmental branches penetrating the left hemiliver. LPV characteristics, the number, and situation of its segmental branches were recorded. LPV comprises two portions: a 28 ± 6...
October 30, 2017: Clinical Anatomy
https://www.readbyqxmd.com/read/29074102/adherence-to-hiv-post-exposure-prophylaxis-a-multivariate-regression-analysis-of-a-5-years-prospective-cohort
#10
Stefano Malinverni, Anne-Françoise Gennotte, Monica Schuster, Stéphane De Wit, Pierre Mols, Agnès Libois
BACKGROUND: Non-occupational post-exposure prophylaxis (nPEP) is a recommended public health intervention after a sexual or percutaneous exposure to human immunodeficiency virus (HIV). METHODS: We conducted a prospective observational study recording consultations for nPEP at a reference HIV center in Brussels, Belgium from January 2011 to December 2015. We recorded attendance to follow-up, reported completion of nPEP and pharmacy records to measure adherence. Multivariate logistic regressions were performed to identify independent risk factors for adherence to nPEP and attendance to first follow-up visit at the STI clinic...
October 23, 2017: Journal of Infection
https://www.readbyqxmd.com/read/29064386/the-role-of-pxr-genotype-and-transporter-expression-in-the-placental-transport-of-lopinavir-in-mice
#11
Sarabjit S Gahir, Micheline Piquette-Miller
Lopinavir (LPV), an antiretroviral protease inhibitor frequently prescribed in HIV-positive pregnancies, is a substrate of Abcb1 and Abcc2. As differences in placental expression of these transporters were seen in Pregnane X Receptor (PXR) -/- mice, we examined the impact of placental transporter expression and fetal PXR genotype on the fetal accumulation of LPV. PXR +/- dams bearing PXR +/+, PXR +/-, and PXR -/- fetuses were generated by mating PXR +/- female mice with PXR +/- males. On gestational day 17, dams were administered 10 mg/kg LPV (i...
October 24, 2017: Pharmaceutics
https://www.readbyqxmd.com/read/29059882/imaging-of-regional-air-distributions-in-porcine-lungs-using-high-performance-electrical-impedance-tomography-system
#12
G Y Jang, Y B Kim, H Wi, T I Oh, C R Chung, G Y Suh, E J Woo
Electrical impedance tomography (EIT) allows functional imaging of regional lung ventilation for real-time bedside monitoring of mechanically ventilated patients. Images showing time-changes of regional air distributions in the lungs can provide valuable diagnostic information for lung protective mechanical ventilation. This paper reports in vivo porcine imaging experiments of regional lung ventilation using a 16-channel parallel EIT system. Real-time time-difference chest images of 10 animals were reconstructed during mechanical ventilations with a temporal resolution of 50 frame/s...
July 2017: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/29052340/absence-of-neurocognitive-disadvantage-associated-with-paediatric-hiv-subtype-a-infection-in-children-on-antiretroviral-therapy
#13
Paul Bangirana, Theodore D Ruel, Michael J Boivin, Satish K Pillai, Leila B Giron, Alla Sikorskii, Asish Banik, Jane Achan
INTRODUCTION: Infection with HIV subtype A has been associated with poorer neurocognitive outcomes compared to HIV subtype D in Ugandan children not eligible for antiretroviral therapy (ART). In this study, we sought to determine whether subtype-specific differences are also observed among children receiving ART. MATERIALS AND METHODS: Children were recruited from a clinical trial in which they were randomized to receive either lopinavir (LPV)- or non-nucleoside reverse transcriptase inhibitor (NNRTI)- based ART (NCT00978068)...
October 2017: Journal of the International AIDS Society
https://www.readbyqxmd.com/read/29032020/long-term-impact-of-suboptimal-rotavirus-vaccines-on-acute-gastroenteritis-in-hospitalized-children-in-northern-taiwan
#14
Wan-Ju Yu, Shih-Yen Chen, Chi-Neu Tsai, Hsun-Ching Chao, Man-Shan Kong, Yi-Jung Chang, Cheng-Hsun Chiu
BACKGROUND/PURPOSE: Rotavirus vaccines were launched in Taiwan since early 2006. Our study was aimed to figure out long-term extended molecular epidemiology in acute gastroenteritis (AGE) in hospitalized young children after rotavirus vaccination in Taiwan. METHODS: During the 10-year period from January 2007 to December 2016, fecal samples from children under 5 years old with AGE hospitalized in Chang Gung Children's Hospital (CGCH) were examined for enteric pathogens and they were divided into two time intervals: early post-vaccine (Jan...
October 11, 2017: Journal of the Formosan Medical Association, Taiwan Yi Zhi
https://www.readbyqxmd.com/read/28899102/community-based-antiretroviral-treatment-in-rural-zimbabwe
#15
Benjamin Chimukangara, Justen Manasa, Rebecca Mitchell, Georgina Nyabadza, David Katzenstein, Collen Masimirembwa
Treatment of HIV has reduced HIV/AIDS-related mortality. Sustaining >90% virologic suppression in sub-Saharan Africa requires decentralized care and prevention services to rural communities. In Zimbabwe, the number of people receiving antiretroviral treatment (ART) has increased rapidly. However, access to treatment monitoring tools such as viral load and drug resistance testing is limited. We assessed virologic treatment outcomes among ART recipients in Nyamutora, a rural community receiving bimonthly ART and prevention services...
October 26, 2017: AIDS Research and Human Retroviruses
https://www.readbyqxmd.com/read/28842163/validated-spectrophotometric-and-chromatographic-methods-for-analysis-of-the-recently-approved-hepatitis-c-antiviral-combination-ledipasvir-and-sofosbuvir
#16
M M Baker, D S El-Kafrawy, M S Mahrous, T S Belal
This work describes five simple and reliable spectrophotometric and chromatographic methods for analysis of hepatitis C antiviral binary mixture of ledipasvir (LPV) and sofosbuvir (SBV). Method I is based on the use of Amax and derivative spectrophotometry with the zero-crossing technique where LPV was determined using its Amax and (1)D amplitudes at 324 and 338nm respectively, while SBV was determined by measuring the (1)D amplitudes at 276nm. Method II involves the application of the ratio spectra derivative spectrophotometry...
August 22, 2017: Annales Pharmaceutiques Françaises
https://www.readbyqxmd.com/read/28805656/magnetically-tuned-photoelectric-response-observed-in-nanoscale-co-sio2-si-structures
#17
Qian Zhang, Jieqiong Hu, Diyuan Zheng, Anhua Dong, Hui Wang
We report a large magnetically tuned lateral photovoltaic effect (LPE) observed in nanoscale Co-SiO2-Si structures. This tunable effect strongly depends on the location of two electrodes. The change ratio of lateral photovoltage (LPV) can reach up to a considerable value of 94.15% under external magnetic field of 1.77 Teslas. This phenomenon is mainly ascribed to the asymmetric Lorentz force acting on the photo-current in the region of edge area of the nanostructure. It adds a new functionality to the traditional LPE-based devices, and provides a potential prospect for the development of multifunctional high-sensitive photoelectric devices or sensors...
August 14, 2017: Nanotechnology
https://www.readbyqxmd.com/read/28805110/lack-of-interaction-of-lopinavir-solid-drug-nanoparticles-with-cells-of-the-immune-system
#18
Neill J Liptrott, Marco Giardiello, Tom O McDonald, Steven P Rannard, Andrew Owen
AIM: We previously demonstrated that solid drug nanoparticles (SDNs) lopinavir (LPV) dispersed into aqueous media display favorable pharmacokinetics. METHODS: The impact of LPV SDNs on the function and phenotype of primary human T cells and macrophages (primary sites of HIV replication) was investigated. RESULTS: LPV significantly increased IL-1β (ninefold higher than untreated cells; p = 0.045) and TNF-α (sixfold higher than untreated cells; p = 0...
August 14, 2017: Nanomedicine
https://www.readbyqxmd.com/read/28783807/comparative-safety-of-antiretroviral-treatment-regimens-in-pregnancy
#19
COMPARATIVE STUDY
Rebecca Zash, Denise L Jacobson, Modiegi Diseko, Gloria Mayondi, Mompati Mmalane, Max Essex, Chipo Petlo, Shahin Lockman, Joseph Makhema, Roger L Shapiro
Importance: Maternal antiretroviral treatment (ART) started before conception may increase the risk for adverse birth outcomes among women with human immunodeficiency virus (HIV) infection, but whether the risk differs by ART regimen is unknown. Objective: To compare the risk for selected birth outcomes by maternal ART regimen. Design, Setting, and Participants: This observational birth outcomes surveillance study compared all live births and stillbirths with a gestational age of at least 24 weeks in 8 geographically dispersed government hospitals throughout Botswana (approximately 45% of births nationwide)...
October 2, 2017: JAMA Pediatrics
https://www.readbyqxmd.com/read/28770596/high-rates-of-viral-suppression-in-adults-and-children-with-high-cd4-counts-using-a-streamlined-art-delivery-model-in-the-search-trial-in-rural-uganda-and-kenya
#20
Dalsone Kwarisiima, Moses R Kamya, Asiphas Owaraganise, Florence Mwangwa, Dathan M Byonanebye, James Ayieko, Albert Plenty, Doug Black, Tamara D Clark, Bridget Nzarubara, Katherine Snyman, Lillian Brown, Elizabeth Bukusi, Craig R Cohen, Elvin H Geng, Edwin D Charlebois, Theodore D Ruel, Maya L Petersen, Diane Havlir, Vivek Jain
INTRODUCTION: The 2015 WHO recommendation of antiretroviral therapy (ART) for all HIV-positive persons calls for treatment initiation in millions of persons newly eligible with high CD4+ counts. Efficient and effective care models are urgently needed for this population. We evaluated clinical outcomes of asymptomatic HIV-positive adults and children starting ART with high CD4+ counts using a novel streamlined care model in rural Uganda and Kenya. METHODS: In the 16 intervention communities of the HIV test-and-treat Sustainable East Africa Research for Community Health Study (NCT01864603), all HIV-positive individuals irrespective of CD4 were offered ART (efavirenz [EFV]/tenofovir disoproxil fumarate + emtricitabine (FTC) or lamivudine (3TC)...
July 21, 2017: Journal of the International AIDS Society
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