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https://www.readbyqxmd.com/read/29138654/syphilis-and-hiv-infections-among-pregnant-women-attending-antenatal-clinics-in-republic-of-congo
#1
Roch Fabien Niama, Nadia Claricelle Loukabou Bongolo, Edith Sophie Bayonne Kombo, Ruth Yengo, Pembe Issamou Mayengue, Etoka-Beka Mandingha Kosso, Igor Louzolo, Lucette Macosso, Ghislain Dzeret, Angélie Serge Patrick Dzabatou Babeaux, Marie-Francke Puruehnce, Henri Joseph Parra
Introduction: HIV and syphilis during pregnancy remain a public health concern especially in developing countries. Pregnant women attending antenatal clinics sites for the first time between September and December 2011 and who accepted to participate in the study were enrolled. The objective was to estimate the syphilis and HIV infection rate in this population. Methods: A study was conducted in 44 selected ANCs from 12 departments (5 urban and 7 rural). Pregnant women who accepted to participate in the study, attending selected sentinel ANCs sites for the first time between September and December 2011 were enrolled...
2017: Pan African Medical Journal
https://www.readbyqxmd.com/read/29068834/serum-suppression-of-tumorigenicity-2-level-is-an-independent-predictor-of-all-cause-mortality-in-hiv-infected-patients
#2
Rodolphe Thiébaut, Sophie Hue, Fabien Le Marec, Jean-Daniel Lelièvre, Michel Dupon, Emile Foucat, Estibaliz Lazaro, François Dabis, Pierre Duffau, Linda Wittkop, Mathieu Surenaud, Isabelle Pellegrin, Christine Lacabaratz, Fabrice Bonnet, Yves Lévy
OBJECTIVE: To evaluate the predictive value of soluble suppression of tumorigenicity 2 (sST2), a decoy receptor of IL-33 involved in several inflammatory and immune diseases, for death in HIV infection. DESIGN: Patients enrolled in the ANRS CO3 Aquitaine Cohort, a prospective hospital-based cohort of HIV-1-infected patients, who had a plasma sample available in the biobank were systematically eligible. METHODS: sST2, soluble CD14 (sCD14) and IL-6 were measured using Luminex multiplex bead-based technology (R&D Systems) and a Bio-Plex 200 instrument (BioRad)...
November 13, 2017: AIDS
https://www.readbyqxmd.com/read/28967640/endometrial-stromal-cells-isolation-expansion-morphological-and-functional-properties
#3
A V Zlatska, A E Rodnichenko, O S Gubar, D O Zubov, S N Novikova, R G Vasyliev
AIM: We aimed to study biological properties of human endometrial stromal cells in vitro. MATERIALS AND METHODS: The endometrium samples (n = 5) were obtained by biopsy at the first phase of the menstrual cycle from women with endometrial hypoplasia. In all cases, a voluntary written informed consent was obtained from the patients. Endometrial fragments were dissociated by enzymatic treatment. The cells were cultured in DMEM/F12 supplemented with 10% FBS, 2 mМ L-glutamine and 1 ng/ml FGF-2 in a multi-gas incubator at 5% CO2 and 5% O2...
September 2017: Experimental Oncology
https://www.readbyqxmd.com/read/28962610/assessment-of-the-hbv-vaccine-response-in-a-group-of-hiv-infected-children-in-morocco
#4
Houda Haban, Soumia Benchekroun, Mina Sadeq, Abdelaziz Benjouad, Said Amzazi, Hicham Oumzil, Elmir Elharti
BACKGROUND: Since its development in the early 1980s, Hepatitis B virus (HBV) vaccine has been proven to be highly protective. However, its immunogenicity may be ineffective among HIV-infected children. In Morocco, HBV vaccine was introduced in 1999, and since then all infants, including vertically HIV-infected infants, have been following the vaccination schedule, implemented by the Moroccan ministry of health. An assessment of the immunization of these children is important to optimize efforts aimed at tackling Hepatitis B coinfection, within the country...
September 29, 2017: BMC Public Health
https://www.readbyqxmd.com/read/28954897/evaluation-of-a-new-ict-test-ldbio-diagnostics-to-detect-toxoplasma-igg-and-igm-comparison-with-the-routine-architect-technique
#5
Caroline Mahinc, Pierre Flori, Edouard Delaunay, Cécile Guillerme, Sana Charaoui, Hélène Raberin, Jamal Hafid, Coralie L'Ollivier
A study comparing the ICT (immunochromatography technology) Toxoplasma® IgG and IgM rapid diagnostic test (LDBIO Diagnostics, France) with the fully automated system, Architect, was performed on samples from university hospitals of Marseille and Saint-Etienne. A total of 767 prospective sera and 235 selected sera were collected. The panels were selected to test various IgG and IgM parameters. The reference technique Toxoplasma IgGII Western Blot (LDBIO Diagnostics) was used to confirm the IgG results and commercial kits Platelia Toxo IgM (Biorad) and Toxo-ISAgA (bioMérieux) were used in Saint-Etienne and Marseille respectively, as the IgM reference technique...
September 27, 2017: Journal of Clinical Microbiology
https://www.readbyqxmd.com/read/28857821/serum-st2-level-is-an-independent-predictor-of-all-cause-mortality-in-hiv-infected-patients-aquitaine-cohort-france
#6
Rodolphe Thiébaut, Sophie Hue, Fabien Le Marec, Jean Daniel Lelièvre, Michel Dupon, Emile Foucat, Estibaliz Lazaro, François Dabis, Pierre Duffau, Linda Wittkop, Mathieu Surenaud, Isabelle Pellegrin, Christine Lacabaratz, Fabrice Bonnet, Yves Lévy
OBJECTIVE: To evaluate the predictive value of Soluble Suppression of Tumorigenicity 2 (sST2), a decoy receptor of IL-33 involved in several inflammatory and immune diseases, for death in HIV infection. DESIGN: Patients enrolled in the ANRS CO3 Aquitaine Cohort, a prospective hospital-based cohort of HIV-1-infected patients, who had a plasma sample available in the bio-bank were systematically eligible. METHODS: sST2, sCD14 and IL6 were measured using Luminex® multiplex bead-based technology (R&D Systems) and a Bio-Plex 200 instrument (BioRad)...
August 28, 2017: AIDS
https://www.readbyqxmd.com/read/28856223/comparison-of-a-point-of-care-analyser-for-the-determination-of-hba1c-with-hplc-method
#7
D A Grant, G J Dunseath, R Churm, S D Luzio
AIMS: As the use of Point of Care Testing (POCT) devices for measurement of glycated haemoglobin (HbA1c) increases, it is imperative to determine how their performance compares to laboratory methods. This study compared the performance of the automated Quo-Test POCT device (EKF Diagnostics), which uses boronate fluorescence quenching technology, with a laboratory based High Performance Liquid Chromatography (HPLC) method (Biorad D10) for measurement of HbA1c. METHODS: Whole blood EDTA samples from subjects (n=100) with and without diabetes were assayed using a BioRad D10 and a Quo-Test analyser...
August 2017: Pract Lab Med
https://www.readbyqxmd.com/read/28601386/detection-of-alk-and-kras-mutations-in-circulating-tumor-dna-of-patients-with-advanced-alk-positive-nsclc-with-disease-progression-during-crizotinib-treatment
#8
Paola Bordi, Marcello Tiseo, Eleonora Rofi, Iacopo Petrini, Giuliana Restante, Romano Danesi, Marzia Del Re
BACKGROUND: In patients with anaplastic lymphoma kinase (ALK)-positive non-small-cell lung cancer (NSCLC), disease progression occurs after a median of 9 to 10 months of crizotinib treatment. Several mechanisms of resistance have been identified and include ALK mutations and amplification or the activation of bypassing signaling pathways. Rebiopsy in NSCLC patients represents a critical issue and the analysis of circulating cell-free DNA (cfDNA) has a promising role for the identification of resistance mechanisms...
November 2017: Clinical Lung Cancer
https://www.readbyqxmd.com/read/28593164/chemiluminescence-systems-do-all-lead-to-same-results-in-prolactin-analysis
#9
Marjan Rahnamaye Farzami, Mehri Aliasgharpour
BACKGROUND: Human prolactin (PRL) is a hormone that is mainly secreted by lactotroph cells of the anterior pituitary gland and is involved in many biological processes including lactation and reproduction. Prolactin level may be determined quantitatively in serum by many different systems including chemiluminescence systems. However, comparison of the measured values between systems is difficult. METHODS: The prolactin values obtained and compared in two chemiluminescence systems; AUTOBIO DIAGNOSTICS MICROPLATE LUMOMETER and LIAISON XL Analyzer using BioRad tri level serum quality control materials and serum samples from n = 44 female patients; (Age mean & range) = (33: 21-65) years...
2017: Journal of Diabetes and Metabolic Disorders
https://www.readbyqxmd.com/read/28428703/comparative-study-of-two-elisa-kits-for-estimation-of-antibodies-to-hepatitis-b-virus-in-human-normal-immunoglobulin-and-specific-immunoglobulin-intended-for-intravenous-or-intramuscular-use
#10
J P Prasad, Y Madhu, Arushi Mandhan, Payal Garg, Anu Prakash, Varsha Singh, Daud Ali, Prdeep Kumar, Surinder Singh, G R Soni, Varun Singh
Current study is conducted to evaluate method verification of two locally available kits manufactured by DSI & BIORAD for quantitative estimation of Hepatitis B virus antibodies in human normal immunoglobulin by using International standard of National Institute of Biological Standards and Control. Four analyst perform five sets of test in duplicate analysing accuracy, precision, and limit of detection, sensitivity and specificity. Our results suggest that both DSI and BIORAD kits fulfil the validation criteria and are sensitive to detect up to 10 mIU concentration precisely and accurately...
June 2017: Indian Journal of Clinical Biochemistry: IJCB
https://www.readbyqxmd.com/read/28340117/an-evaluation-of-the-performance-of-the-dynamiker%C3%A2-fungus-1-3-%C3%AE-d-glucan-assay-to-assist-in-the-diagnosis-of-invasive-aspergillosis-invasive-candidiasis-and-pneumocystis-pneumonia
#11
P Lewis White, Jessica S Price, Raquel B Posso, Rosemary A Barnes
Invasive fungal disease (IFD) can be caused by a range of pathogens. Conventional diagnosis has the capacity to detect most causes of IFD, but poor performance limits impact. The introduction of non-culture diagnostics, including the detection of (1-3)-β-D-Glucan (BDG), has shown promising performance for the detection of IFD in variety of clinical settings. Recently, the Dynamiker® Fungus (1-3)-β-D-Glucan assay (D-BDG) was released as an IFD diagnostic test. This article describes an evaluation of the D-BDG assay for the diagnosis of invasive aspergillosis (IA), invasive candidiasis (IC) and Pneumocystis pneumonia (PCP) across several high-risk patient cohorts and provides comparative data with the Associates of Cape Cod Fungitell® and BioRad Platelia™ Aspergillus Ag (GM) assays...
November 1, 2017: Medical Mycology: Official Publication of the International Society for Human and Animal Mycology
https://www.readbyqxmd.com/read/28231277/comparison-of-cross-sectional-hiv-incidence-assay-results-from-dried-blood-spots-and-plasma
#12
COMPARATIVE STUDY
Katherine E Schlusser, Christopher Pilcher, Esper G Kallas, Breno R Santos, Steven G Deeks, Shelley Facente, Sheila M Keating, Michael P Busch, Gary Murphy, Alex Welte, Thomas Quinn, Susan H Eshleman, Oliver Laeyendecker
BACKGROUND: Assays have been developed for cross-sectional HIV incidence estimation using plasma samples. Large scale surveillance programs are planned using dried blood spot (DBS) specimens for incidence assessment. However, limited information exists on the performance of HIV cross-sectional incidence assays using DBS. METHODS: The assays evaluated were: Maxim HIV-1 Limiting Antigen Avidity EIA (LAg-Avidity), Sedia HIV-1 BED-Capture EIA (BED-CEIA), and CDC modified BioRad HIV-1/2 Plus O Avidity-based Assay (CDC-BioRad Avidity) using pre-determined cutoff values...
2017: PloS One
https://www.readbyqxmd.com/read/28178281/surveillance-of-hiv-1-pol-transmitted-drug-resistance-in-acutely-and-recently-infected-antiretroviral-drug-na%C3%A3-ve-persons-in-rural-western-kenya
#13
Harris Onywera, David Maman, Seth Inzaule, Erick Auma, Kennedy Were, Harrison Fredrick, Prestone Owiti, Valarie Opollo, Jean-François Etard, Irene Mukui, Andrea A Kim, Clement Zeh
HIV-1 transmitted drug resistance (TDR) is of increasing public health concern in sub-Saharan Africa with the rollout of antiretroviral (ARV) therapy. Such data are, however, limited in Kenya, where HIV-1 drug resistance testing is not routinely performed. From a population-based household survey conducted between September and November 2012 in rural western Kenya, we retrospectively assessed HIV-1 TDR baseline rates, its determinants, and genetic diversity among drug-naïve persons aged 15-59 years with acute HIV-1 infections (AHI) and recent HIV-1 infections (RHI) as determined by nucleic acid amplification test and both Limiting Antigen and BioRad avidity immunoassays, respectively...
2017: PloS One
https://www.readbyqxmd.com/read/28127161/blood-group-determination-using-dna-extracted-from-exfoliated-primary-teeth-at-various-time-durations-and-temperatures-a-pcr-study
#14
Reshma K Pai, Sham S Bhat, Afreen Salman, Sundeep Hegde
AIM: To determine polymerase chain reaction (PCR)-based blood group on tooth pulp obtained from teeth stored for 1 month, 6 months, and 1 year following extraction and to evaluate the stability of deoxyribonucleic acid (DNA) in primary tooth subjected to a temperature of 200°C ± 5°C for 15 minutes. MATERIALS AND METHODS: Dental pulp tissue was collected from 40 exfoliated primary teeth stored for various time durations and temperature and preserved at 4°C till DNA extraction was carried out...
October 2016: International Journal of Clinical Pediatric Dentistry
https://www.readbyqxmd.com/read/27897226/viral-and-host-characteristics-of-recent-and-established-hiv-1-infections-in-kisumu-based-on-a-multiassay-approach
#15
Newton Otecko, Seth Inzaule, Collins Odhiambo, George Otieno, Valarie Opollo, Alex Morwabe, Kennedy Were, Kenneth Ndiege, Fredrick Otieno, Andrea A Kim, Clement Zeh
Integrated approaches provide better understanding of HIV/AIDS epidemics. We optimised a multiassay algorithm (MAA) and assessed HIV incidence, correlates of recent infections, viral diversity, plus transmission clusters among participants screened for Kisumu Incidence Cohort Study (KICoS1) (2007-2009). We performed BED-CEIA, Limiting antigen (LAg) avidity, Biorad avidity, and viral load (VL) tests on HIV-positive samples. Genotypic analyses focused on HIV-1 pol gene. Correlates of testing recent by MAA were assessed using logistic regression model...
November 29, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27790419/quantification-of-dna-extracted-from-formalin-fixed-paraffin-embeded-tissue-comparison-of-three-techniques-effect-on-pcr-efficiency
#16
Dushyant Kumar, Manoj Kumar Panigrahi, Moushumi Suryavanshi, Anurag Mehta, Kandarpa Kumar Saikia
INTRODUCTION: Mutation detection from Formalin Fixed Paraffin-Embedding (FFPE) tissue in molecular lab became a necessary tool for defining potential targeted drug. Accurate quantification of DNA extracted from FFPE tissue is necessary for downstream applications like Polymerase Chain Reaction (PCR), sequencing etc. AIM: To check and define which method for FFPE DNA quantification is suitable for downstream processes. MATERIALS AND METHODS: In this experimental experience study Biorad Smartspec Plus spectrophotomery, Qubit Fluorometer, and Qiagen Rotorgene qPCR was used to compare 20 FFPE DNA quantification in Rajiv Gandhi Cancer Institute and Research Centre, in 2015 and quantified amount of DNA used for PCR reaction...
September 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/27784934/high-throughput-sequencing-an-overview-of-sequencing-chemistry
#17
REVIEW
Sheetal Ambardar, Rikita Gupta, Deepika Trakroo, Rup Lal, Jyoti Vakhlu
In the present century sequencing is to the DNA science, what gel electrophoresis was to it in the last century. From 1977 to 2016 three generation of the sequencing technologies of various types have been developed. Second and third generation sequencing technologies referred commonly to as next generation sequencing technology, has evolved significantly with increase in sequencing speed, decrease in sequencing cost, since its inception in 2004. GS FLX by 454 Life Sciences/Roche diagnostics, Genome Analyzer, HiSeq, MiSeq and NextSeq by Illumina, Inc...
December 2016: Indian Journal of Microbiology
https://www.readbyqxmd.com/read/27716411/genetic-histochemical-and-biochemical-studies-on-goat-tse-cases-from-cyprus
#18
Susanne Niedermeyer, Martin Eiden, Pavlos Toumazos, Penelope Papasavva-Stylianou, Ioannis Ioannou, Theodoros Sklaviadis, Cynthia Panagiotidis, Jan Langeveld, Alex Bossers, Thorsten Kuczius, Martin Kaatz, Martin H Groschup, Christine Fast
Scrapie and bovine spongiform encephalopathy (BSE) are transmissible spongiform encephalopathies (TSE's) affecting sheep and goats. Susceptibility of goats to scrapie is influenced by polymorphisms of the prion protein gene (PRNP) of the host. Five polymorphisms are associated with reduced susceptibility to TSE's. In the study presented here caprine samples from a scrapie eradication program on Cyprus were genotyped and further characterized using BioRad TeSeE rapid test, histological, immunohistochemical and biochemical methods...
October 6, 2016: Veterinary Research
https://www.readbyqxmd.com/read/27561203/selection-and-validation-of-reliable-reference-genes-for-rt-qpcr-analysis-in-a-large-cohort-of-pituitary-adenomas
#19
Kjersti Ringvoll Normann, Kristin Astrid Berland Øystese, Jens Petter Berg, Tove Lekva, Jon Berg-Johnsen, Jens Bollerslev, Nicoleta Cristina Olarescu
BACKGROUND: Real-time reverse transcription quantitative PCR (RT-qPCR) has become the method of choice for quantification of gene expression changes. The most important limitations of RT-qPCR are inappropriate data normalization and inconsistent data analyses. Pituitary adenomas are common tumours, and the appropriate interpretation of increasingly published data within this field is prevented by the lack of a proper selection and validation of stably expressed reference genes. AIM: To find and validate the optimal reference gene or gene combination for reliable RT-qPCR gene expression in both non-functioning (NFPA) and hormone secreting (GH and ACTH) pituitary adenomas...
December 5, 2016: Molecular and Cellular Endocrinology
https://www.readbyqxmd.com/read/27454561/viral-load-criteria-and-threshold-optimization-to-improve-hiv-incidence-assay-characteristics
#20
Reshma Kassanjee, Christopher D Pilcher, Michael P Busch, Gary Murphy, Shelley N Facente, Sheila M Keating, Elaine Mckinney, Kara Marson, Matthew A Price, Jeffrey N Martin, Susan J Little, Frederick M Hecht, Esper G Kallas, Alex Welte
OBJECTIVE: Assays for classifying HIV infections as 'recent' or 'nonrecent' for incidence surveillance fail to simultaneously achieve large mean durations of 'recent' infection (MDRIs) and low 'false-recent' rates (FRRs), particularly in virally suppressed persons. The potential for optimizing recent infection testing algorithms (RITAs), by introducing viral load criteria and tuning thresholds used to dichotomize quantitative measures, is explored. DESIGN: The Consortium for the Evaluation and Performance of HIV Incidence Assays characterized over 2000 possible RITAs constructed from seven assays (Limiting Antigen, BED, Less-sensitive Vitros, Vitros Avidity, BioRad Avidity, Architect Avidity, and Geenius) applied to 2500 diverse specimens...
September 24, 2016: AIDS
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