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https://www.readbyqxmd.com/read/29779160/an-event-level-analysis-of-condomless-anal-intercourse-with-a-hiv-discordant-or-hiv-status-unknown-partner-among-black-men-who-have-sex-with-men-from-a-multi-site-study
#1
Cui Yang, Carl Latkin, Karin Tobin, David Seal, Beryl Koblin, Geetanjali Chander, Daniel Siconolfi, Stephen Flores, Pilgrim Spikes
Despite the high HIV incidence and prevalence among black men who have sex with men (BMSM), little research has examined partner characteristics, partner seeking venue, sexual position, substance use, and sexual risk behavior at the sex event-level among BMSM. Using the baseline data from a multi-site study of 807 BMSM stratified by their HIV status, the goal of this study was to conduct a detailed event-level analysis of 1577 male anal sex events to assess the factors associated with condomless anal intercourse (CLAI) with a HIV-discordant or HIV status-unknown partner...
May 19, 2018: AIDS and Behavior
https://www.readbyqxmd.com/read/29777524/mercury-involvement-in-neuronal-damage-and-in-neurodegenerative-diseases
#2
REVIEW
Veronica Lanza Cariccio, Annalisa Samà, Placido Bramanti, Emanuela Mazzon
Neurodegenerative diseases such as Alzheimer's disease, Parkinson's disease, amyotrophic lateral sclerosis, and multiple sclerosis are characterized by a chronic and selective process of neuronal cell death. Although the causes of neurodegenerative diseases remain still unknown, it is now a well-established idea that more factors, such as genetic, endogenous, and environmental, are involved. Among environmental causes, the accumulation of mercury, a heavy metal considered a toxic agent, was largely studied as a probable factor involved in neurodegenerative disease course...
May 18, 2018: Biological Trace Element Research
https://www.readbyqxmd.com/read/29775566/the-challenge-of-discordant-serology-in-chagas-disease-the-role-of-two-confirmatory-techniques-in-inconclusive-cases
#3
Zaira Moure, Elena Sulleiro, Laura Iniesta, Carmen Guillen, Israel Molina, M Magdalena Alcover, Cristina Riera, Tomás Pumarola, Roser Fisa
Serodiscordance in Chagas disease (CD) remains a challenge since individuals with inconclusive results are clinically complicated to manage. This work, conducted outside the endemic area, aims to compare two different confirmatory techniques for the diagnosis of CD in individuals without a definitive diagnosis, to analyze the performance of the screening techniques in this group of patients, and to describe the serological follow-up of these subjects over time. Sera from 48 individuals with repeatedly discordant results by one recombinant enzyme immunoassay (r-ELISA) and one native ELISA (n-ELISA), were included in the study...
May 15, 2018: Acta Tropica
https://www.readbyqxmd.com/read/29774288/molecular-analysis-of-giardia-duodenalis-isolates-from-symptomatic-and-asymptomatic-children-from-la-habana-cuba
#4
Luis Enrique Jerez Puebla, Fidel A Núñez, Lissette Pérez Santos, Lázara Rojas Rivero, Isabel Martínez Silva, Lucía Ayllón Valdés, Iraís Atencio Millán, Norbert Müller
Giardiasis is considered the most common intestinal parasitic disease in humans worldwide. In Cuba, this infection has particularly a strong clinical impact on the child population. Giardia duodenalis is a highly diverse protozoan, which comprises a complex of eight morphologically identical genetic assemblages, further divided into sub-assemblages. The present study used triose phosphate isomerase ( tpi ) and small-subunit ribosomal RNA (SSU rRNA) genes as genetic markers for the identification of G. duodenalis assemblages and sub-assemblages in correlation with clinical and epidemiological data in children attended at the Paediatric Hospital "William Soler" and at Pedro Kouri Institute, between 2015 and 2016...
August 2017: Parasite Epidemiology and Control
https://www.readbyqxmd.com/read/29773649/ptap-motif-duplication-in-the-p6-gag-protein-confers-a-replication-advantage-on-hiv-1-subtype-c
#5
Shilpee Sharma, Prabhu S Arunachalam, Malini Menon, Viswanath Ragupathy, Ravi Vijaya Satya, Joshua Jebaraj, Shambhu Ganeshappa Aralaguppe, Chaitra Rao, Sreshtha Pal, Shanmugam Saravanan, Kailapuri G Murugavel, Pachamuthu Balakrishnan, Suniti Solomon, Indira Hewlett, Udaykumar Ranga
HIV-1 subtype C (HIV-1C) may duplicate longer amino acid stretches in the p6 Gag protein, leading to the creation of an additional Pro-Thr/Ser-Ala-Pro (PTAP) motif necessary for viral packaging. However, the biological significance of a duplication of the PTAP motif for HIV-1 replication and pathogenesis has not been experimentally validated. In a longitudinal study of two different clinical cohorts of select HIV-1 seropositive, drug-naive individuals from India, we found that 8 of 50 of these individuals harbored a mixed infection of viral strains discordant for the PTAP duplication...
May 17, 2018: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/29772607/mechanisms-and-drivers-of-social-inequality-in-phase-ii-cardiac-rehabilitation-attendance-a-convergent-mixed-methods-study
#6
Maria Pedersen, Dorthe Overgaard, Ingelise Andersen, Marie Baastrup, Ingrid Egerod
AIM: To explore the extent to which the qualitative and quantitative data converge and explain mechanisms and drivers of social inequality in cardiac rehabilitation attendance. BACKGROUND: Social inequality in cardiac rehabilitation attendance has been a recognized problem for many years. However, to date the mechanisms driving these inequalities are still not fully understood. DESIGN: The study was designed as a convergent mixed methods study...
May 17, 2018: Journal of Advanced Nursing
https://www.readbyqxmd.com/read/29771597/concordance-between-survey-reported-childhood-asthma-and-linked-medicaid-administrative-records
#7
Benjamin Zablotsky, Lindsey I Black
OBJECTIVE: Agreement between administrative and survey data has been shown to vary by the condition of interest and there is limited research dedicated to parental report of asthma among children. The current study assesses the concordance between parent-reported asthma from the National Health Interview Survey (NHIS) with Medicaid administrative claims data among linkage eligible children from the NHIS. METHODS: Medicaid Analytic eXtract (MAX) files from the Centers for Medicare & Medicaid Services (CMS) (years 2000-2005) were linked to participants of the NHIS (years 2001-2005)...
May 17, 2018: Journal of Asthma: Official Journal of the Association for the Care of Asthma
https://www.readbyqxmd.com/read/29770779/effect-of-neoadjuvant-chemotherapy-on-the-expression-of-hormone-receptors-and-ki-67-in-chinese-breast-cancer-patients-a-retrospective-study-of-525-patients
#8
Yu-Tuan Wu, Xin Li, Lin-Jie Lu, Lu Gan, Wei Dai, Yan-Ling Shi, Vishnu Prasad Adhikari, Kai-Nan Wu, Ling-Quan Kong
This study was designed to investigate the effect of neoadjuvant chemotherapy on the expression of hormone receptors and ki67 in Chinese female breast cancer patients. The expression of estrogen receptor (ER), progesterone receptor (PR) and Ki67 among 525 neoadjuvant chemotherapy cases was studied by immunohistochemistry (IHC). Differences between specimens made through preoperative core needle biopsy (CB) and excised tissue biopsy (EB) were observed. The positive rates of ER, PR and Ki67 in CB and EB were 65...
November 1, 2017: Journal of Biomedical Research
https://www.readbyqxmd.com/read/29769168/pressure-wire-compared-to-microcatheter-sensing-for-coronary-fractional-flow-reserve-the-perform-study
#9
Ziad A Ali, Yasir Parviz, Matthew Brinkman, Mitsuaki Matsumura, Björn Redfors, David A Brogno, Maria D Corral, Khady N Fall, Gary S Mintz, Gregg W Stone, Akiko Maehara, Allen Jeremias, Ajay J Kirtane
AIMS: Among technologies used to assess FFR, a monorail, sensor-tipped micro pressure catheter (PC) may be advantageous for delivery and re-assessment. We sought to determine whether the larger cross-sectional area of the PC influences FFR measurements compared to the pressure wire. METHODS AND RESULTS: PERFORM was a single-center, prospective study designed to determine the precision and accuracy of the PC compared with the pressure wire (PW) for measurement of FFR...
May 15, 2018: EuroIntervention
https://www.readbyqxmd.com/read/29769151/real-time-automated-detection-of-ventilator-associated-events-avoiding-missed-detections-misclassifications-and-false-detections-due-to-human-error
#10
Erica S Shenoy, Eric S Rosenthal, Yu-Ping Shao, Siddharth Biswal, Manohar Ghanta, Erin E Ryan, Dolores Suslak, Nancy Swanson, Valdery Moura Junior, David C Hooper, M Brandon Westover
OBJECTIVETo validate a system to detect ventilator associated events (VAEs) autonomously and in real time.DESIGNRetrospective review of ventilated patients using a secure informatics platform to identify VAEs (ie, automated surveillance) compared to surveillance by infection control (IC) staff (ie, manual surveillance), including development and validation cohorts.SETTINGThe Massachusetts General Hospital, a tertiary-care academic health center, during January-March 2015 (development cohort) and January-March 2016 (validation cohort)...
May 17, 2018: Infection Control and Hospital Epidemiology
https://www.readbyqxmd.com/read/29767223/evaluation-of-renal-function-estimation-formulas-specific-to-dynamic-renal-function-for-drug-dosing-in-critically-ill-patients
#11
Lianjie Xiong, Z Kevin Lu, April Miller Quidley, Bebbyn S Alford, P Brandon Bookstaver
OBJECTIVES: The study compared estimated creatinine clearance (eCrCl) between the Cockcroft-Gault (CG) equation and the Jelliffe, Chiou, and Brater equations designed for estimation in dynamic renal function and resulting antimicrobial dosing concordance of five antimicrobials (cefepime, meropenem, piperacillin/tazobactam, vancomycin, and fluconazole) commonly used in the intensive care unit (ICU). METHODS: Electronic medical records were used to identify the target patient population...
May 2018: Southern Medical Journal
https://www.readbyqxmd.com/read/29766813/coreceptor-tropism-and-maraviroc-sensitivity-of-clonally-derived-ethiopian-hiv-1c-strains-using-an-in-house-phenotypic-assay-and-commonly-used-genotypic-methods
#12
Amare Worku Kalu, Nigus Fikrie Telele, Shambhu Aralaguppe, Solomon Gebre-Selassie, Daniel Fekade, Gaetano Marrone, Anders Sonnerborg
OBJECTIVES: Genotypic tropism testing (GTT) tools are generally developed based on HIV-1 subtype B (HIV-1B) and used for HIV-1C as well but with a large discordance of prediction between different methods. We used an established phenotypic assay for comparison with GTT methods and for determination of in vitro maraviroc sensitivity of pure R5-tropic and dual-tropic HIV-1C. METHODS: Plasma was obtained from 58 HIV-1C infected Ethiopians. Envgp120 was cloned into a luciferase tagged NL4-3 plasmid...
May 15, 2018: Current HIV Research
https://www.readbyqxmd.com/read/29765155/genetic-transcriptional-and-post-translational-regulation-of-the-programmed-death-protein-ligand-1-in-cancer-biology-and-clinical-correlations
#13
REVIEW
Ioannis Zerdes, Alexios Matikas, Jonas Bergh, George Z Rassidakis, Theodoros Foukakis
The programmed death protein 1 (PD-1) and its ligand (PD-L1) represent a well-characterized immune checkpoint in cancer, effectively targeted by monoclonal antibodies that are approved for routine clinical use. The regulation of PD-L1 expression is complex, varies between different tumor types and occurs at the genetic, transcriptional and post-transcriptional levels. Copy number alterations of PD-L1 locus have been reported with varying frequency in several tumor types. At the transcriptional level, a number of transcriptional factors seem to regulate PD-L1 expression including HIF-1, STAT3, NF-κΒ, and AP-1...
May 16, 2018: Oncogene
https://www.readbyqxmd.com/read/29764292/evaluation-of-performance-testing-of-different-rapid-diagnostic-kits-in-comparison-with-eias-to-validate-detection-of-hepatitis-b-virus-among-high-risk-group-in-nigeria
#14
Abosede Yetunde Afolabi, Adeleye Solomon Bakarey, Moses Olubusuyi Adewumi
BACKGROUND: Hepatitis B virus (HBV) causes chronic liver-associated diseases and its early detection is of high public health importance. Its diagnosis is mainly based on immunological assays among which Enzyme-Linked Immunosorbent Assay (ELISA) and rapid tests are the most common and widespread methods. However, a major challenge is the discordance of results of any two laboratory assays which cannot be easily resolved. Therefore, this study was designed to evaluate the validity and reliability of commercially available five rapid test kits in comparison with two Enzyme Immunoassays (EIAs) in Nigeria using hepatitis B surface antigen as a reference marker...
May 15, 2018: Journal of Immunoassay & Immunochemistry
https://www.readbyqxmd.com/read/29763896/evaluation-of-the-her2-and-hormone-receptor-status-in-metastatic-breast-cancer-using-cell-blocks-a-multi-institutional-study
#15
Rieko Nishimura, Yuya Murata, Kiyoshi Mori, Katsushige Yamashiro, Kazuya Kuraoka, Shu Ichihara, Kenichi Taguchi, Hiroyoshi Suzuki, Masahiro Ito, Natsumi Yamashita
OBJECTIVE: We explore the problems associated with the cell block (CB) method for receptor analysis in breast cancer metastases and propose a method for reporting the results. STUDY DESIGN: Nine institutions used the CB method for the analysis of hormone receptors (HRs) and HER2 (human epidermal growth factor receptor 2) protein in cytological specimens of breast cancer metastases in routine practice. The stained slides were independently evaluated by 8 pathologists...
May 15, 2018: Acta Cytologica
https://www.readbyqxmd.com/read/29763668/evaluation-of-automated-loop-mediated-amplification-lamp-for-routine-malaria-detection-in-blood-samples-of-german-travelers-a-cross-sectional-study
#16
Hagen Frickmann, Rebecca Hinz, Sandra Rojak, Insa Bonow, Stefanie Ruben, Christine Wegner, Iris Zielke, Ralf Matthias Hagen, Egbert Tannich
BACKGROUND: We assessed a commercial loop-mediated amplification (LAMP) platform for its reliability as a screening tool for malaria parasite detection. METHODS: A total of 1000 blood samples from patients with suspected or confirmed malaria submitted to the German National Reference Center for Tropical Pathogens were subjected to LAMP using the Meridian illumigene Malaria platform. Results were compared with microscopy from thick and thin blood films in all cases...
May 12, 2018: Travel Medicine and Infectious Disease
https://www.readbyqxmd.com/read/29763608/early-prognostic-factors-of-outcomes-in-monochorionic-twin-pregnancy-systematic-review-and-meta-analysis
#17
REVIEW
Fiona L Mackie, Matthew J Hall, R Katie Morris, Mark D Kilby
OBJECTIVE: Assess ability of first trimester pregnancy related factors (ultrasound measurements, maternal characteristics, biomarkers) to predict complications in monochorionic twin pregnancies DATA SOURCES: MEDLINE, EMBASE, ISI Web of Science, CINAHL, the Cochrane Central Registration of Controlled Trials and Research Registers, and Google Scholar, from inception to 12 May 2017. Grey literature and bibliographies of articles were checked. STUDY ELIGIBILITY CRITERIA: Studies that reported ultrasound measurements, maternal characteristics, or potential biomarkers, measured in the first trimester in monochorionic diamniotic twin pregnancies, where the potential prognostic ability between the variable and twin-twin transfusion syndrome, growth restriction, or intrauterine fetal death could be assessed...
May 12, 2018: American Journal of Obstetrics and Gynecology
https://www.readbyqxmd.com/read/29762385/hiv-sero-discordance-and-dual-contraceptive-method-use-among-hiv-infected-men-and-women-in-lilongwe-malawi
#18
Blessings Gausi, Maganizo B Chagomerana, Jennifer H Tang, Lisa B Haddad, Mina C Hosseinipour, Hannock Tweya, Sam Phiri
BACKGROUND: Some HIV sero-discordant couples are faced with the dual challenge of preventing HIV transmission to the uninfected partner and avoiding unintended pregnancy. Therefore, we hypothesized that sero-discordance is associated with dual method use at last sex. METHODS: We analyzed data from a cross-sectional survey of HIV-infected men and women attending 2 ART clinics in Lilongwe, Malawi. We used Fisher's exact test and Wilcoxon rank sum to assess for associations between sero-discordance, covariates, and dual method use...
May 14, 2018: Sexually Transmitted Diseases
https://www.readbyqxmd.com/read/29762171/hiv-transmission-in-discordant-couples-in-africa-in-the-context-of-art-availability
#19
Evonne Woodson, Alec Goldberg, Clive Michelo, Debby Basu, Sijia Tao, Raymond Schinazi, Yong Jiang, William Kilembe, Etienne Karita, Susan Allen, Eric Hunter
OBJECTIVE: This study aims to understand the basis of continued HIV-1 transmission in Zambian and Rwandan HIV-1 discordant couples in the context of ART. DESIGN: We identified 9 Zambian and 7 Rwandan acutely-infected, epidemiologically-linked couples from government CVCT clinics where transmitting partners reported being on ART near the time of transmission. METHODS: We quantified viral load (VL) and plasma antiretroviral (ARV) drug concentrations near the time of transmission and used these as surrogate measures for adherence...
May 11, 2018: AIDS
https://www.readbyqxmd.com/read/29761423/advanced-parental-age-as-risk-factor-for-childhood-acute-lymphoblastic-leukemia-results-from-studies-of-the-childhood-leukemia-international-consortium
#20
Eleni Th Petridou, Marios K Georgakis, Friederike Erdmann, Xiaomei Ma, Julia E Heck, Anssi Auvinen, Beth A Mueller, Logan G Spector, Eve Roman, Catherine Metayer, Corrado Magnani, Maria S Pombo-de-Oliveira, Sameera Ezzat, Michael E Scheurer, Ana Maria Mora, John D Dockerty, Johnni Hansen, Alice Y Kang, Rong Wang, David R Doody, Eleanor Kane, Waffa M Rashed, Nick Dessypris, Joachim Schüz, Claire Infante-Rivard, Alkistis Skalkidou
Advanced parental age has been associated with adverse health effects in the offspring including childhood (0-14 years) acute lymphoblastic leukemia (ALL), as reported in our meta-analysis of published studies. We aimed to further explore the association using primary data from 16 studies participating in the Childhood Leukemia International Consortium. Data were contributed by 11 case-control (CC) studies (7919 cases and 12,942 controls recruited via interviews) and five nested case-control (NCC) studies (8801 cases and 29,690 controls identified through record linkage of population-based health registries) with variable enrollment periods (1968-2015)...
May 14, 2018: European Journal of Epidemiology
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