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https://www.readbyqxmd.com/read/29783113/automated-uhplc-separation-of-10-pharmaceutical-compounds-using-software-modeling
#1
A Zöldhegyi, H-J Rieger, I Molnár, L Fekhretdinova
Human mistakes are still one of the main reasons of underlying regulatory affairs that in a compliance with FDA's Data Integrity and Analytical Quality by Design (AQbD) must be eliminated. To develop smooth, fast and robust methods that are free of human failures, a state-of-the-art automation was presented. For the scope of this study, a commercial software (DryLab) and a model mixture of 10 drugs were subjected to testing. Following AQbD-principles, the best available working point was selected and conformational experimental runs, i...
March 20, 2018: Journal of Pharmaceutical and Biomedical Analysis
https://www.readbyqxmd.com/read/29782993/generalized-recurrent-neural-network-accommodating-dynamic-causal-modeling-for-functional-mri-analysis
#2
Yuan Wang, Yao Wang, Yvonne W Lui
Dynamic Causal Modeling (DCM) is an advanced biophysical model which explicitly describes the entire process from experimental stimuli to functional magnetic resonance imaging (fMRI) signals via neural activity and cerebral hemodynamics. To conduct a DCM study, one needs to represent the experimental stimuli as a compact vector-valued function of time, which is hard in complex tasks such as book reading and natural movie watching. Deep learning provides the state-of-the-art signal representation solution, encoding complex signals into compact dense vectors while preserving the essence of the original signals...
May 18, 2018: NeuroImage
https://www.readbyqxmd.com/read/29782548/dyslipidemia-among-rural-and-urban-hiv-patients-in-south-east-malawi
#3
Alemayehu Amberbir, Victor Singano, Alfred Matengeni, Zahra Ismail, Gift Kawalazira, Adrienne K Chan, Sumeet D Sodhi, Joep J van Oosterhout
BACKGROUND: While dyslipidemia importantly contributes to increased cardiovascular disease risk among patients on antiretroviral therapy (ART), data on lipid patterns among African adults on ART are limited. We describe the prevalence of lipid abnormalities and associated factors in two HIV clinics in Malawi. METHODS: We conducted a cross-sectional study in 2014 and enrolled adult patients at a rural and an urban HIV clinic in Zomba district, Malawi. We recorded patient characteristics, CVD risk factors and anthropometric measurements, using the WHO STEPS validated instrument...
2018: PloS One
https://www.readbyqxmd.com/read/29782305/tatami-mats-a-source-of-pitted-keratolysis-in-a-martial-arts-athlete
#4
Anamaria Balić, Zrinka Bukvić Mokos, Branka Marinović, Daniela Ledić Drvar
Dear Editor, Pitted keratolysis (PK), also known as keratosis plantaris sulcatum, is a non-inflammatory, bacterial, superficial cutaneous infection, characterized by many discrete superficial crateriform ''pits'' and erosions in the thickly keratinized skin of the weight-bearing regions of the soles of the feet (1). The disease often goes unnoticed by the patient, but when it is noticed it is because of the unbearable malodor and hyperhidrosis of the feet, which are socially unacceptable and cause great anxiety to many of the patients...
April 2018: Acta Dermatovenerologica Croatica: ADC
https://www.readbyqxmd.com/read/29782282/-cell-therapy-of-chronic-heart-failure-state-of-the-art
#5
S A Beliy, V V Komok
The treatment of patients with CHF using autologous bone marrow-derived mononuclear cell fraction (or its derivatives) is a promising therapy for this serious and numerous group of patients. The article analyzed international and Russian experience of using the cell therapy in patients with CHF and possibilities for extensive use of the autologous bone marrow-derived mononuclear cell fraction in clinical practice.
2018: Kardiologiia
https://www.readbyqxmd.com/read/29782139/obstetric-outcomes-after-fresh-versus-frozen-thawed-embryo-transfers-a-systematic-review-and-meta-analysis
#6
Matheus Roque, Marcello Valle, Marcos Sampaio, Selmo Geber
OBJECTIVE: To evaluate if there are differences in the risks of obstetric outcomes in IVF/ICSI singleton pregnancies when compared fresh to frozen-thawed embryo transfers (FET). METHODS: This was a systematic review and meta-analysis evaluating the obstetric outcomes in singleton pregnancies after FET and fresh embryo transfer. The outcomes included in this study were pregnancy-induced hypertension (PIH), pre-eclampsia, placenta previa, and placenta accreta. RESULTS: The search yielded 654 papers, 6 of which met the inclusion criteria and reported on obstetric outcomes...
May 21, 2018: JBRA Assisted Reproduction
https://www.readbyqxmd.com/read/29781885/improved-cognitive-performance-and-reduced-monocyte-activation-in-virally-suppressed-chronic-hiv-following-dual-ccr2-and-ccr5-antagonism
#7
Michelle L D'Antoni, Robert H Paul, Brooks I Mitchell, Lindsay Kohorn, Laurent Fischer, Eric Lefebvre, Star Seyedkazemi, Beau K Nakamoto, Maegen Walker, Kalpana J Kallianpur, Debra Ogata-Arakaki, Lishomwa C Ndhlovu, Cecilia Shikuma
OBJECTIVE: To evaluate changes in neuropsychological (NP) performance and in plasma and cell surface markers of peripheral monocyte activation/migration following treatment with cenicriviroc (CVC), a dual C-C chemokine receptor type 2 (CCR2) and type 5 (CCR5) antagonist, in treatment-experienced, HIV-infected individuals. SETTING: Single-arm, 24-week, open-label clinical trial. METHODS: HIV-infected individuals on antiretroviral therapy (ART) >1 year with plasma HIV RNA <50 copies/ml and below-normal cognitive performance [defined as age, gender and education-adjusted NP performance (NPZ) <-0...
May 16, 2018: Journal of Acquired Immune Deficiency Syndromes: JAIDS
https://www.readbyqxmd.com/read/29781882/no-hiv-transmission-from-virally-suppressed-mothers-during-breastfeeding-in-rural-tanzania
#8
Ezekiel Luoga, Fiona Vanobberghen, Rahel Bircher, Amina Nyuri, Alex J Ntamatungiro, Dorcas Mnzava, Getrud J Mollel, Emilio Letang, Manuel Battegay, Maja Weisser, Anna Gamell
BACKGROUND: To what extent antiretroviral therapy (ART) reduces mother-to-child HIV transmission (MTCT) during breastfeeding remains unclear. We assessed the MTCT risk from mothers on ART to their infants during breastfeeding. SETTING: Ifakara, rural Tanzania. METHODS: We included infants born between 01/2013 and 05/2016 to mothers who initiated ART before delivery, had a negative HIV DNA-PCR at 4-12 weeks, and exclusively breastfed for ≥6 months...
May 16, 2018: Journal of Acquired Immune Deficiency Syndromes: JAIDS
https://www.readbyqxmd.com/read/29781881/individual-and-network-factors-associated-with-hiv-care-continuum-outcomes-among-nigerian-msm-accessing-healthcare-services
#9
Habib O Ramadhani, Nicaise Ndembi, Rebecca G Nowak, Uchenna Ononaku, Jerry Gwamna, Ifeanyi Orazulike, Sylvia Adebajo, Trevor A Crowell, Hongjie Liu, Stefan D Baral, Julie Ake, Man E Charurat
BACKGROUND: and setting: As data on the determinants of the HIV care continuum from key populations such as men who have sex with men (MSM) in resource-limited, settings (RLS) are limited, the study aimed to characterize HIV care continuum outcomes and assess individual and network barriers to progression through the HIV care continuum among MSM in Abuja and Lagos, Nigeria. METHODS: TRUST/RV368 study used respondent-driven-sampling to accrue MSM into community-based clinics in Nigeria...
May 16, 2018: Journal of Acquired Immune Deficiency Syndromes: JAIDS
https://www.readbyqxmd.com/read/29781680/provision-of-antiretroviral-therapy-for-children-in-nelson-mandela-bay-health-care-professionals-challenges
#10
Margaret Williams, Dalena R M Van Rooyen, Esmeralda J Ricks
BACKGROUND:  The human immunodeficiency virus and/or acquired immune deficiency syndrome (HIV/AIDS) pandemic continues to increase in prevalence worldwide, particularly in South Africa, and includes the often overlooked paediatric population. The provision of paediatric antiretroviral treatment (ART) is as essential for children as for adults, and has numerous obstacles, not least of which is lack of decentralisation of facilities to provide essential treatment. Optimising ART, care and support for HIV-positive children, and their caregivers, at public sector primary health care (PHC) clinics is crucial to improve morbidity and mortality rates in children...
March 12, 2018: African Journal of Primary Health Care & Family Medicine
https://www.readbyqxmd.com/read/29781477/methyl-rotation-dynamics-in-metal-organic-frameworks-probed-with-terahertz-spectroscopy
#11
Qi Li, Adam J Zaczek, Timothy M Korter, J Axel Zeitler, Michael T Ruggiero
In ZIF-8 and its cobalt analogue ZIF-67, the imidazolate methyl-groups, which point directly into the void space, have been shown to freely rotate - even down to cryogenic temperatures. Using a combination of experimental terahertz time-domain spectroscopy, low-frequency Raman spectroscopy, and state-of-the-art ab initio simulations, the methyl-rotor dynamics in ZIF-8 and ZIF-67 are fully characterized within the context of a quantum-mechanical hindered-rotor model. The results lend insight into the fundamental origins of the experimentally observed methyl-rotor dynamics, and provide valuable insight into the nature of the weak interactions present within this important class of materials...
May 21, 2018: Chemical Communications: Chem Comm
https://www.readbyqxmd.com/read/29781408/gilles-de-la-tourette-syndrome-as-a-paradigmatic-neuropsychiatric-disorder
#12
Andrea E Cavanna
Gilles de la Tourette syndrome is a chronic and complex tic disorder accompanied by specific behavioral problems in the majority of patients. With its multifaceted interplay between motion and emotion, this condition is a paradigmatic example of the science and art of clinical neuropsychiatry. This review article encompasses the clinical phenomenology of motor and vocal tics and associated sensory experiences (premonitory urges), as well as the behavioral spectrum of the most common comorbidities, including obsessive-compulsive disorder, attention-deficit and hyperactivity disorder, affective symptoms, and impulsivity...
May 21, 2018: CNS Spectrums
https://www.readbyqxmd.com/read/29781407/electron-source-brightness-and-illumination-semi-angle-distribution-measurement-in-a-transmission-electron-microscope
#13
Felix Börrnert, Julian Renner, Ute Kaiser
The electron source brightness is an important parameter in an electron microscope. Reliable and easy brightness measurement routes are not easily found. A determination method for the illumination semi-angle distribution in transmission electron microscopy is even less well documented. Herein, we report a simple measurement route for both entities and demonstrate it on a state-of-the-art instrument. The reduced axial brightness of the FEI X-FEG with a monochromator was determined to be larger than 108 A/(m2 sr V)...
May 21, 2018: Microscopy and Microanalysis
https://www.readbyqxmd.com/read/29781378/art-attrition-across-health-facilities-implementing-option-b-in-haiti
#14
Martine Pamphile Myrtil, Nancy Puttkammer, Stephen Gloyd, Julia Robinson, Krista Yuhas, Jean Wysler Domercant, Jean Guy Honoré, Kesner Francois
BACKGROUND: Describing factors related to high attrition is important in order to improve the implementation of the Option B+ strategy in Haiti. METHODS: We conducted a retrospective cohort study to describe the variability of antiretroviral therapy (ART) retention across health facilities among pregnant and lactating women and assess for differences in ART retention between Option B+ clients and other ART patients. RESULTS: There were 1989 Option B+ clients who initiated ART in 45 health facilities...
January 2018: Journal of the International Association of Providers of AIDS Care
https://www.readbyqxmd.com/read/29781044/sleeve-gastrectomy-in-morbidly-obese-hiv-patients-focus-on-anti-retroviral-treatment-absorption-after-surgery
#15
Chloé Amouyal, Marion Buyse, Lea Lucas-Martini, Déborah Hirt, Laurent Genser, Adriana Torcivia, Jean-Luc Bouillot, Jean-Michel Oppert, Judith Aron-Wisnewsky
CONTEXT: Anti-retroviral therapy (ART) dramatically reduced AIDS development, thus enabling patients to live as long as the general population. New challenges have emerged particularly cardiometabolic diseases and weight gain, with some HIV patients seeking bariatric surgery (BS). However, BS outcomes during HIV remain poorly described, with scarce data on ART pharmacokinetic post-BS. OBJECTIVE: Describing sleeve gastrectomy (SG) results in HIV patients in terms of ART pharmacokinetic, HIV control, weight loss, and metabolic outcomes...
May 20, 2018: Obesity Surgery
https://www.readbyqxmd.com/read/29780899/perspectives-on-the-evolving-state-of-the-art-management-of-gastrointestinal-stromal-tumours
#16
REVIEW
Zoltan Szucs, Robin L Jones
Gastrointestinal stromal tumours (GISTs) represent a very exciting tumour entity for the medical oncologist. There has been extensive clinical and preclinical research dissecting the natural behaviour, molecular landscape and therapeutic responsiveness of this rare mesenchymal tumour. Various molecular subtypes of GIST have a differing prognostic and predictive relevance in the state of the art management of the disease. Emerging mature clinical trial data gathered over the last one and half decade provided substantial molecular profiling information in understanding the success and eventual failure of treatment...
2018: Translational Gastroenterology and Hepatology
https://www.readbyqxmd.com/read/29780889/how-to-conceptualize-and-implement-a-phd-program-in-health-sciences-the-basel-approach
#17
Franziska Keller, Suzanne Dhaini, Matthias Briel, Sina Henrichs, Christoph Höchsmann, Daniel Kalbermatten, Nino Künzli, Annette Mollet, Christian Puelacher, Arno Schmidt-Trucksäss, Belinda von Niederhäusern, Sabina De Geest
Objectives: Over the past decade, several excellent guidelines have been published on how to enhance the quality of PhD education in Europe. Aimed primarily at preparing students for innovative roles in their fields, they include variously structured approaches to curricular offerings, as well as other program components applicable across specialties (eg: supervisor support, scientific conduct, transferable skills). Since 2012, the interdisciplinary PhD Program in Health Sciences (PPHS) at the Faculty of Medicine of the University of Basel in Switzerland has focused on translating these guidelines into a 21st-century health sciences PhD program...
January 2018: Journal of Medical Education and Curricular Development
https://www.readbyqxmd.com/read/29780878/microfluidics-in-malignant-glioma-research-and-precision-medicine
#18
Meghan Logun, Wujun Zhao, Leidong Mao, Lohitash Karumbaiah
Glioblastoma multiforme (GBM) is an aggressive form of brain cancer that has no effective treatments and a prognosis of only 12-15 months. Microfluidic technologies deliver microscale control of fluids and cells, and have aided cancer therapy as point-of-care devices for the diagnosis of breast and prostate cancers. However, a few microfluidic devices are developed to study malignant glioma. The ability of these platforms to accurately replicate the complex microenvironmental and extracellular conditions prevailing in the brain and facilitate the measurement of biological phenomena with high resolution and in a high-throughput manner could prove useful for studying glioma progression...
May 2018: Advanced Biosystems
https://www.readbyqxmd.com/read/29780633/deep-learning-aided-decision-support-for-pulmonary-nodules-diagnosing-a-review
#19
REVIEW
Yixin Yang, Xiaoyi Feng, Wenhao Chi, Zhengyang Li, Wenzhe Duan, Haiping Liu, Wenhua Liang, Wei Wang, Ping Chen, Jianxing He, Bo Liu
Deep learning techniques have recently emerged as promising decision supporting approaches to automatically analyze medical images for different clinical diagnosing purposes. Diagnosing of pulmonary nodules by using computer-assisted diagnosing has received considerable theoretical, computational, and empirical research work, and considerable methods have been developed for detection and classification of pulmonary nodules on different formats of images including chest radiographs, computed tomography (CT), and positron emission tomography in the past five decades...
April 2018: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/29780535/-de-novo-design-of-d-%C3%AF-a-molecules-as-universal-hosts-for-monochrome-and-white-phosphorescent-organic-light-emitting-diodes
#20
Wen-Cheng Chen, Yi Yuan, Ze-Lin Zhu, Zuo-Quan Jiang, Shi-Jian Su, Liang-Sheng Liao, Chun-Sing Lee
Two novel D-σ-A host materials 11,11-bis(9-phenyl-9 H -carbazol-3-yl)-11 H -benzo[4,5]imidazo[1,2- a ]indole (BII-BCz) and 4,4'-(11 H -benzo[4,5]imidazo[1,2- a ]indole-11,11-diyl)bis( N , N -diphenylaniline) (BII-TPA) are synthesized by using the sp3 carbon attached to a newly designed 11 H -benzo[4,5]imidazo[1,2- a ]indole building block to link two electron-donating groups. The resulting materials feature high triplet energy levels, good thermal properties and suitable photophysical properties as universal hosts for full-color phosphorescent organic light-emitting diodes (OLEDs)...
May 7, 2018: Chemical Science
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