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https://www.readbyqxmd.com/read/27906995/assessment-of-the-world-health-organization-s-hiv-drug-resistance-early-warning-indicators-in-main-and-decentralized-outreach-antiretroviral-therapy-sites-in-namibia
#1
Nicholus Mutenda, Alexandra Bukowski, Anne-Marie Nitschke, Tuli Nakanyala, Ndapewa Hamunime, Tadesse Mekonen, Francina Tjituka, Greatjoy Mazibuko, Samson Mwinga, David Mabirizi, Evans Sagwa, Rosalia Indongo, Natalie Dean, Michael R Jordan, Steven Y Hong
BACKGROUND: The World Health Organization (WHO) early warning indicators (EWIs) of HIV drug resistance (HIVDR) assess factors at individual ART sites that are known to create situations favourable to the emergence of HIVDR. METHODS: In 2014, the Namibia HIV care and treatment program abstracted the following adult and pediatric EWIs from all public ART sites (50 main sites and 143 outreach sites): On-time pill pick-up, Retention in care, Pharmacy stock-outs, Dispensing practices, and Viral load suppression...
2016: PloS One
https://www.readbyqxmd.com/read/27902444/oncolytic-reovirus-as-a-combined-antiviral-and-anti-tumour-agent-for-the-treatment-of-liver-cancer
#2
Adel Samson, Matthew J Bentham, Karen Scott, Gerard Nuovo, Abigail Bloy, Elizabeth Appleton, Robert A Adair, Rajiv Dave, Adam Peckham-Cooper, Giles Toogood, Seishi Nagamori, Matthew Coffey, Richard Vile, Kevin Harrington, Peter Selby, Fiona Errington-Mais, Alan Melcher, Stephen Griffin
OBJECTIVE: Oncolytic viruses (OVs) represent promising, proinflammatory cancer treatments. Here, we explored whether OV-induced innate immune responses could simultaneously inhibit HCV while suppressing hepatocellular carcinoma (HCC). Furthermore, we extended this exemplar to other models of virus-associated cancer. DESIGN AND RESULTS: Clinical grade oncolytic orthoreovirus (Reo) elicited innate immune activation within primary human liver tissue in the absence of cytotoxicity and independently of viral genome replication...
November 15, 2016: Gut
https://www.readbyqxmd.com/read/27902362/identification-and-interspecies-transmission-of-a-novel-bocaparvovirus-among-different-bat-species-in-china
#3
Susanna Kp Lau, Syed Shakeel Ahmed, Hazel C Yeung, Kenneth S M Li, Rachel Y Y Fan, Toni Y C Cheng, Jian-Piao Cai, Ming Wang, Bo-Jian Zheng, Samson S Y Wong, Patrick C Y Woo, Kwok-Yung Yuen
We report the discovery of a novel bocaparvovirus, bat bocaparvovirus (BtBoV), in one spleen, four respiratory and 61 alimentary samples from bats of six different species belonging to three families, Hipposideridae, Rhinolophidae and Vespertilionidae. BtBoV showed higher detection rate in alimentary samples of Rhinolophus sinicus (5.7%) than those of other bat species (0.43-1.59%), supporting R. sinicus as the primary reservoir and virus spill-over to accidental bat species. BtBoV peaked during lactating season of R...
October 25, 2016: Journal of General Virology
https://www.readbyqxmd.com/read/27891232/prevalence-of-transfusion-transmissible-infections-in-blood-donors-of-pakistan
#4
Aisha Arshad, Munira Borhany, Nida Anwar, Imran Naseer, Rehan Ansari, Samson Boota, Naveena Fatima, Mustansir Zaidi, Tahir Shamsi
BACKGROUND: Transfusion-transmitted infections threaten the safety of patients requiring blood transfusion, which in turn imposes serious challenges for the availability of safe blood products that are still affordable in health care systems with limited resources. The aim of the study was to determine the prevalence of transfusion-transmitted infections in blood donors and to evaluate the demographic characteristics of reactive and non-reactive blood donors. METHODS: A prospective cohort study was conducted at our institute in Karachi, Pakistan...
2016: BMC Hematology
https://www.readbyqxmd.com/read/27890212/-complete-intra-articular-distal-radius-fractures-in-young-active-patients
#5
A-M Gay, P Samson, R Legré
Management of complex intra-articular fractures of the distal radius in young active patients must aim to restore normal anatomy. For optimal planning of the surgical procedure, a thorough analysis of the fracture with appropriate radiological exams and diagnosis of frequently associated lesions are necessary. Surgical management involves use of various types of internal or external fixation. Routine use of standardized analysis tools for these fractures along with prospective follow-up should allow us to define guidelines for each situation in the near future...
December 2016: Hand Surgery and Rehabilitation
https://www.readbyqxmd.com/read/27889618/cell-death-mechanistic-study-of-photodynamic-therapy-against-breast-cancer-cells-utilizing-liposomal-delivery-of-5-10-15-20-tetrakis-benzo-b-thiophene-porphyrin
#6
Geewoo Nam, Sabarinathan Rangasamy, Hee Ju, Annie Agnes Suganya Samson, Joon Myong Song
5,10,15,20-Tetrakis(benzo[b]thiophene) porphyrin (BTP) is a newly synthesized hydrophobic photosensitizer with fluorescence quantum yield in toluene: ΦF=0.062. Previously, its limitations in solubility had hindered scientific experimentation regarding its photodynamic effects on cancer cells. By utilizing various compositions of liposomes in order to alter the solubility of BTP, the photocytotoxicity, reactive oxygen species generation, and subcellular localization of the liposomal BTP were identified in this work...
November 12, 2016: Journal of Photochemistry and Photobiology. B, Biology
https://www.readbyqxmd.com/read/27889326/-inventory-of-training-of-internal-medicine-in-france-results-of-a-national-survey
#7
M Samson, B Terrier, O Mangin, L Mouthon
OBJECTIVE: To make an inventory of training of Internal Medicine in France. METHOD: This study was conducted between May and September 2015 with coordinators (interviews of 45minutes) of local Internal Medicine training and fellows (online questionnaire). RESULTS: All coordinators (n=28) responded to the interviews. Local training of Internal Medicine exists in 86% of regions (3.1±3.1hours/month) and an interregional training in all interregions (34...
November 23, 2016: La Revue de Médecine Interne
https://www.readbyqxmd.com/read/27889052/types-of-oral-contraceptives-and-breast-cancer-survival-among-women-enrolled-in-medicaid-a-competing-risk-model
#8
Marsha E Samson, Swann Arp Adams, Caroline M Mulatya, Jiajia Zhang, Charles L Bennett, James Hebert, Susan E Steck
INTRODUCTION: Oral contraceptive pills have been implicated in the pathophysiology of breast cancer. Although many studies have examined the relationship between combined oral contraceptives (COCs) and breast cancer, there is a paucity of literature that discusses progestin-only oral contraceptives (POCs) and breast cancer. The purpose of this investigation is to examine potential associations between different types of oral contraceptives and breast cancer mortality in the South Carolina Medicaid population among different racial/ethnic groups...
January 2017: Maturitas
https://www.readbyqxmd.com/read/27886659/physicochemical-and-mechanical-properties-of-bambara-groundnut-starch-films-modified-with-stearic-acid
#9
Samson A Oyeyinka, Suren Singh, Eric O Amonsou
The physicochemical and mechanical properties of biofilm prepared from bambara starch modified with varying concentrations of stearic acid (0%, 2.5%, 3.5%, 5%, 7%, and 10%) were studied. By scanning electron microscopy, bambara starch films modified with stearic acid (≥3.5%) showed a progressively rough surface compared to those with 2.5% stearic acid and the control. Fourier transform infrared spectroscopy spectra revealed a peak shift of approximately 31 cm(-1) , suggesting the promotion of hydrogen bond formation between hydroxyl groups of starch and stearic acid...
November 25, 2016: Journal of Food Science
https://www.readbyqxmd.com/read/27881726/systems-genetics-identifies-a-novel-regulatory-domain-of-amylose-synthesis
#10
Vito M Butardo, Roslen Anacleto, Sabiha Parween, Irene Samson, Krishna de Guzman, Crisline Mae Alhambra, Gopal Misra, Nese Sreenivasulu
A deeper understanding of the regulation of starch biosynthesis in rice endosperm is crucial in tailoring digestibility without sacrificing grain quality. In this study, significant association peaks on chromosomes 6 and 7 were identified through genome-wide association study (GWAS) of debranched starch structure from grains of a 320 indica rice diversity panel using genotyping data from the high-density rice array. A systems genetics approach that interrelates starch structure data from GWAS to functional pathways from a gene regulatory network identified known and novel genes with high correlation to the proportion of amylose and amylopectin...
November 23, 2016: Plant Physiology
https://www.readbyqxmd.com/read/27876115/the-first-digit-law-a-hypothesis-on-its-possible-impact-on-medicine-and-development-aid
#11
Gregor Pollach, Frank Brunkhorst, Mwapatsa Mipando, Felix Namboya, Samson Mndolo, Thomas Luiz
The "first digit law" or "Benford's law" is a mathematical distribution discovered by Simon Newcomb and Frank Benford. It states, that the probability of the leading number d (d∈{1,…,9}) in many natural datasets follows: P (d)=log10 (d+1)-log10 (d)=log10 (1+1/d). It was successfully used through tax authorities and "forensic accounting" in order to detect fraud and other irregularities. Benfords law was almost neglected for its use outside financial accounting. The planning for health care systems in developing countries is extremely dependant on good, valid data...
December 2016: Medical Hypotheses
https://www.readbyqxmd.com/read/27873761/hereditary-angioedema-hae-a-cause-for-recurrent-abdominal-pain
#12
Parita Soni, Vivek Kumar, Samson Alliu, Vijay Shetty
A 44-year-old Hispanic woman presented to the emergency room with a 2-day history of sudden onset of severe cramping left lower quadrant abdominal pain associated with ∼20 episodes diarrhoea. Abdominal CT scan exhibited bowel wall oedema and acute extensive colitis. On the basis of the preliminary diagnosis of acute abdomen, the patient was admitted under the surgical team and treated for acute colitis. Since her family history was significant for hereditary angioedema (HAE), complement studies were performed which revealed low complement C4 levels and abnormally low values of C1q esterase inhibitor...
November 14, 2016: BMJ Case Reports
https://www.readbyqxmd.com/read/27863820/b-cell-depleting-therapy-regulates-splenic-and-circulating-t-follicular-helper-cells-in-immune-thrombocytopenia
#13
Sylvain Audia, Marzia Rossato, Malika Trad, Maxime Samson, Kim Santegoets, Alexandrine Gautheron, Cornelis Bekker, Olivier Facy, Nicolas Cheynel, Pablo Ortega-Deballon, Mathieu Boulin, Sabine Berthier, Vanessa Leguy-Seguin, Laurent Martin, Marion Ciudad, Nona Janikashvili, Philippe Saas, Timothy Radstake, Bernard Bonnotte
B cells are involved in immune thrombocytopenia (ITP) pathophysiology by producing antiplatelet auto-antibodies. However more than a half of ITP patients do not respond to B cell depletion induced by rituximab (RTX). The persistence of splenic T follicular helper cells (TFH) that we demonstrated to be expanded during ITP and to support B cell differentiation and antiplatelet antibody-production may participate to RTX inefficiency. Whereas it is well established that the survival of TFH depends on B cells in animal models, nothing is known in humans yet...
November 15, 2016: Journal of Autoimmunity
https://www.readbyqxmd.com/read/27846070/implementation-and-operational-research-an-integrated-and-comprehensive-service-delivery-model-to-improve-pediatric-and-maternal-hiv-care-in-rural-africa
#14
Anna Gamell, Tracy R Glass, Lameck B Luwanda, Herry Mapesi, Leila Samson, Tom Mtoi, Angelo Nyamtema, Lukas Muri, Alex Ntamatungiro, Marcel Tanner, Christoph Hatz, Manuel Battegay, Emilio Letang
BACKGROUND: Strategies to improve HIV diagnosis and linkage into care, antiretroviral treatment coverage, and treatment outcomes of mothers and children are urgently needed in sub-Saharan Africa. METHODS: From December 2012, we implemented an intervention package to improve prevention of mother-to-child transmission (PMTCT) and pediatric HIV care in our rural Tanzanian clinic, consisting of: (1) creation of a PMTCT and pediatric unit integrated within the reproductive and child health clinic; (2) implementation of electronic medical records; (3) provider-initiated HIV testing and counseling in the hospital wards; and (4) early infant diagnosis test performed locally...
December 15, 2016: Journal of Acquired Immune Deficiency Syndromes: JAIDS
https://www.readbyqxmd.com/read/27844308/impact-of-concurrent-chemotherapy-with-radiation-therapy-for-elderly-patients-with-newly-diagnosed-glioblastoma-a-review-of-the-national-cancer-data-base
#15
Jiayi Huang, Pamela Samson, Stephanie M Perkins, George Ansstas, Milan G Chheda, Todd A DeWees, Christina I Tsien, Clifford G Robinson, Jian L Campian
To investigate the utilization and overall survival (OS) impact of concurrent chemotherapy in combination with radiation therapy (RT) for elderly glioblastoma (GBM) patients. Elderly patients (age >70) with supratentorial and nonmetastatic GBM who received RT of 20-75 Gy with concurrent single-agent chemotherapy (ChemoRT) or without (RT alone) during 2004-2012 were identified from the National Cancer Data Base (NCDB). The Cochran-Armitage test was used for trend analysis. Hazard ratios (HR) and 95% confidence intervals (CIs) were determined using Cox proportional hazards...
November 14, 2016: Journal of Neuro-oncology
https://www.readbyqxmd.com/read/27842542/asymptomatic-only-at-first-sight-malaria-infection-among-schoolchildren-in-highland-rwanda
#16
Kevin C Sifft, Dominik Geus, Caritas Mukampunga, Jean Claude Mugisha, Felix Habarugira, Kira Fraundorfer, Claude Bayingana, Jules Ndoli, Irenee Umulisa, Corine Karema, George von Samson-Himmelstjerna, Toni Aebischer, Peter Martus, Augustin Sendegeya, Jean Bosco Gahutu, Frank P Mockenhaupt
BACKGROUND: Plasmodium infection and malaria in school children are increasingly recognized as a relevant public health problem, but data on actual prevalence and health consequences are insufficient. The present study from highland southern Rwanda aimed at estimating infection prevalence among children attending school, at identifying associated factors and at assessing the clinical consequences of these infections. METHODS: In a survey including 12 schools in the Huye district of Rwanda, 1089 children aged 6-10 years were clinically and anthropometrically examined, malaria parasites were diagnosed by microscopy and PCR, haemoglobin concentrations were measured, and socio-economic and behavioural parameters as well as medical histories were obtained...
November 14, 2016: Malaria Journal
https://www.readbyqxmd.com/read/27835001/wigner-functions-for-arbitrary-quantum-systems
#17
Todd Tilma, Mark J Everitt, John H Samson, William J Munro, Kae Nemoto
The possibility of constructing a complete, continuous Wigner function for any quantum system has been a subject of investigation for over 50 years. A key system that has served to illustrate the difficulties of this problem has been an ensemble of spins. Here we present a general and consistent framework for constructing Wigner functions exploiting the underlying symmetries in the physical system at hand. The Wigner function can be used to fully describe any quantum system of arbitrary dimension or ensemble size...
October 28, 2016: Physical Review Letters
https://www.readbyqxmd.com/read/27834368/more-frequent-intense-and-long-lived-storms-dominate-the-springtime-trend-in-central-us-rainfall
#18
Zhe Feng, L Ruby Leung, Samson Hagos, Robert A Houze, Casey D Burleyson, Karthik Balaguru
The changes in extreme rainfall associated with a warming climate have drawn significant attention in recent years. Mounting evidence shows that sub-daily convective rainfall extremes are increasing faster than the rate of change in the atmospheric precipitable water capacity with a warming climate. However, the response of extreme precipitation depends on the type of storm supported by the meteorological environment. Here using long-term satellite, surface radar and rain-gauge network data and atmospheric reanalyses, we show that the observed increases in springtime total and extreme rainfall in the central United States are dominated by mesoscale convective systems (MCSs), the largest type of convective storm, with increased frequency and intensity of long-lasting MCSs...
November 11, 2016: Nature Communications
https://www.readbyqxmd.com/read/27831558/ripk1-protects-from-tnf-%C3%AE-mediated-liver-damage-during-hepatitis
#19
Aveline Filliol, Claire Piquet-Pellorce, Jacques Le Seyec, Muhammad Farooq, Valentine Genet, Catherine Lucas-Clerc, John Bertin, Peter J Gough, Marie-Thérèse Dimanche-Boitrel, Peter Vandenabeele, Mathieu Jm Bertrand, Michel Samson
Cell death of hepatocytes is a prominent characteristic in the pathogenesis of liver disease, while hepatolysis is a starting point of inflammation in hepatitis and loss of hepatic function. However, the precise molecular mechanisms of hepatocyte cell death, the role of the cytokines of hepatic microenvironment and the involvement of intracellular kinases, remain unclear. Tumor necrosis factor alpha (TNF-α) is a key cytokine involved in cell death or survival pathways and the role of RIPK1 has been associated to the TNF-α-dependent signaling pathway...
November 10, 2016: Cell Death & Disease
https://www.readbyqxmd.com/read/27829141/modelling-the-influence-of-temperature-and-rainfall-on-malaria-incidence-in-four-endemic-provinces-of-zambia-using-semiparametric-poisson-regression
#20
Nzooma M Shimaponda-Mataa, Enala Tembo-Mwase, Michael Gebreslasie, Thomas N O Achia, Samson Mukaratirwa
Although malaria morbidity and mortality are greatly reduced globally owing to great control efforts, the disease remains the main contributor. In Zambia, all provinces are malaria endemic. However, the transmission intensities vary mainly depending on environmental factors as they interact with the vectors. Generally in Africa, possibly due to the varying perspectives and methods used, there is variation on the relative importance of malaria risk determinants. In Zambia, the role climatic factors play on malaria case rates has not been determined in combination of space and time using robust methods in modelling...
November 6, 2016: Acta Tropica
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