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https://www.readbyqxmd.com/read/28427933/high-molecular-weight-genomic-dna-mini-prep-for-filamentous-fungi
#1
Mi-Kyung Lee, Hee-Soo Park, Kap-Hoon Han, Seung-Beom Hong, Jae-Hyuk Yu
Purification of high quality genomic DNA (gDNA) from filamentous fungi suitable for whole genome sequencing has previously involved many steps. Here, we report a simple and easy-to-follow mini-preparation protocol for high molecular weight (∼20 kb) gDNA from filamentous fungi including Aspergillus and Eurotium. This comprehensive protocol includes graphic step-by-step instructions for inoculation, homogenization, and purification of gDNA. The most critical step is a thorough 3 ∼ 5 min homogenization of the freeze-dried mycelium using a motorized hand-held homogenizer with a mini spatula inserted...
April 18, 2017: Fungal Genetics and Biology: FG & B
https://www.readbyqxmd.com/read/28426834/acceptability-of-an-open-label-wait-listed-trial-design-experiences-from-the-proud-prep-study
#2
Mitzy Gafos, Elizabeth Brodnicki, Monica Desai, Sheena McCormack, Will Nutland, Sonali Wayal, Ellen White, Gemma Wood, Tristan Barber, Gill Bell, Amanda Clarke, David Dolling, David Dunn, Julie Fox, Lewis Haddow, Charles Lacey, Anthony Nardone, Killian Quinn, Caroline Rae, Iain Reeves, Michael Rayment, David White, Vanessa Apea, Wilbert Ayap, Claire Dewsnap, Yolanda Collaco-Moraes, Gabriel Schembri, Yinka Sowunmi, Rob Horne
BACKGROUND: PROUD participants were randomly assigned to receive pre-exposure prophylaxis (PrEP) immediately or after a deferred period of one-year. We report on the acceptability of this open-label wait-listed trial design. METHODS: Participants completed an acceptability questionnaire, which included categorical study acceptability data and free-text data on most and least liked aspects of the study. We also conducted in-depth interviews (IDI) with a purposely selected sub-sample of participants...
2017: PloS One
https://www.readbyqxmd.com/read/28423992/secrecy-empowerment-and-protection-positioning-prep-in-kwazulu-natal-south-africa
#3
Eliza Govender, Leila Mansoor, Kate MacQueen, Quarraisha Abdool Karim
The release of World Health Organisation guidelines recommending the prophylactic use of daily Truvada(®) for all populations at high risk of acquiring HIV opens the way for implementation of oral pre-exposure prophylaxis (PrEP). The impact of new prevention technologies is, however, dependent on demand creation strategies such as user awareness, acceptability and access, which in turn are influenced by sociocultural and gender norms. This study was conducted in three locations in KwaZulu-Natal, urban, rural and peri-urban, with six participatory workshops...
April 20, 2017: Culture, Health & Sexuality
https://www.readbyqxmd.com/read/28421713/identification-isolation-and-synthesis-of-seven-novel-impurities-of-anti-diabetic-drug-repaglinide
#4
Prasad Kancherla, Srinivas Keesari, Pallavi Alegete, Mukkanti Khagga, Parthasarathi Das
Seven unknown impurities in Repaglinide bulk drug batches at below 0.1% (ranging from 0.05-0.10%) were detected by an ultra-performance liquid chromatographic (UPLC) method. These impurities were isolated from the crude sample of Repaglinide using preparative high performance liquid chromatography (prep-HPLC). Based on LC-ESI/MS study, the chemical structures of seven new impurities (8, 9, 10, 11, 13, 14 and 16) were presumed and characterized as 4-(cyanomethyl)-2-ethoxybenzoic acid (8), 4-(cyanomethyl)-2-ethoxy-N-(3-methyl-1-(2-(piperidin-1-yl)phenyl)butyl)benzamide (9), 4-(2-amino-2-oxoethyl)-2-ethoxy-N-(3-methyl-1-(2-(piperidin-1-yl)phenyl)butyl) benzamide (10) and 2-(3-ethoxy-4-((3-methyl-1-(2-(piperidin-1-yl)phenyl)butyl) carbamoyl) phenyl) acetic acid (11) and 4-(cyanomethyl)-N-cyclohexyl-2-ethoxybenzamide (13), 2-(4-(cyclohexylcarbamoyl)-3-ethoxyphenyl) acetic acid (14) and N-cyclohexyl-4-(2-(cyclohexylamino)-2-oxoethyl)-2-ethoxybenzamide (16)...
April 19, 2017: Drug Testing and Analysis
https://www.readbyqxmd.com/read/28418987/the-roles-of-behavioral-and-social-science-research-in-the-fight-against-hiv-aids-a-functional-framework
#5
Paul Gaist, Michael J Stirratt
Landmark advances have been made in HIV/AIDS prevention and treatment. These include proof-of-concept and public health implementation of pre-exposure prophylaxis (PrEP) and "treatment as prevention" (TasP) to reduce HIV transmission as well as definitive evidence of the clinical gain from early antiretroviral treatment (ART) initiation. Significant progress has been made in understanding and addressing the social contexts and behavioral factors that impact HIV prevention, care, and treatment interventions...
April 7, 2017: Journal of Acquired Immune Deficiency Syndromes: JAIDS
https://www.readbyqxmd.com/read/28418232/high-pre-exposure-prophylaxis-uptake-and-early-adherence-among-men-who-have-sex-with-men-and-transgender-women-at-risk-for-hiv-infection-the-prep-brasil-demonstration-project
#6
Brenda Hoagland, Ronaldo I Moreira, Raquel B De Boni, Esper G Kallas, José Valdez Madruga, Ricardo Vasconcelos, Silvia Goulart, Thiago S Torres, Luana M S Marins, Peter L Anderson, Paula M Luz, Iuri da Costa Leite, Albert Y Liu, Valdilea G Veloso, Beatriz Grinsztejn
INTRODUCTION: The efficacy of pre-exposure prophylaxis (PrEP) in preventing sexual acquisition of human immunodeficiency virus (HIV) is well established. Little is known about the feasibility of PrEP implementation in middle-income settings with concentrated epidemics among men who have sex with men (MSM) and transgender women (TGW). METHODS: PrEP Brasil is a prospective, multicentre, open-label demonstration project assessing PrEP delivery in the context of the Brazilian Public Health System...
April 6, 2017: Journal of the International AIDS Society
https://www.readbyqxmd.com/read/28415911/risk-safety-and-sex-among-male-prep-users-time-for-a-new-understanding
#7
Kimberly Koester, Rivet K Amico, Hailey Gilmore, Albert Liu, Vanessa McMahan, Kenneth Mayer, Sybil Hosek, Robert Grant
Recent advances in biomedical HIV prevention have led to optimistic projections of a dramatic worldwide reduction of new infections by 2030. This optimism is counterbalanced by concerns that the protective benefits of one such technology, HIV pre-exposure prophylaxis (PrEP), may be negated by increases in other behaviours that offset these benefits (risk compensation). To contribute to a deeper understanding of concepts of safety and risk in the context of HIV PrEP, we draw on the narrative accounts of 61 male PrEP users who participated in the inaugural PrEP demonstration project: the iPrEx open-label extension study...
April 18, 2017: Culture, Health & Sexuality
https://www.readbyqxmd.com/read/28414261/-support-your-client-at-the-space-that-they-re-in-hiv-pre-exposure-prophylaxis-prep-prescribers-perspectives-on-prep-related-risk-compensation
#8
Sarah K Calabrese, Manya Magnus, Kenneth H Mayer, Douglas S Krakower, Adam I Eldahan, Lauren A Gaston Hawkins, Kristen Underhill, Nathan B Hansen, Trace S Kershaw, Joseph R Betancourt, John F Dovidio
Despite the demonstrated effectiveness of HIV pre-exposure prophylaxis (PrEP) and evidence that most PrEP users do not engage in risk compensation (i.e., increased risk behavior due to a perceived decrease in HIV susceptibility), some healthcare providers report patient risk compensation to be a deterrent to prescribing PrEP. Overcoming this barrier is essential to supporting PrEP access and uptake among people at risk for HIV. To inform such efforts, this qualitative study explored PrEP-related risk compensation attitudes among providers with firsthand experience prescribing PrEP...
April 2017: AIDS Patient Care and STDs
https://www.readbyqxmd.com/read/28412995/development-and-validation-of-prediction-models-for-risks-of-complications-in-early-onset-pre-eclampsia-prep-a-prospective-cohort-study
#9
Shakila Thangaratinam, John Allotey, Nadine Marlin, Ben W Mol, Peter Von Dadelszen, Wessel Ganzevoort, Joost Akkermans, Asif Ahmed, Jane Daniels, Jon Deeks, Khaled Ismail, Ann Marie Barnard, Julie Dodds, Sally Kerry, Carl Moons, Richard D Riley, Khalid S Khan
BACKGROUND: The prognosis of early-onset pre-eclampsia (before 34 weeks' gestation) is variable. Accurate prediction of complications is required to plan appropriate management in high-risk women. OBJECTIVE: To develop and validate prediction models for outcomes in early-onset pre-eclampsia. DESIGN: Prospective cohort for model development, with validation in two external data sets. SETTING: Model development: 53 obstetric units in the UK...
April 2017: Health Technology Assessment: HTA
https://www.readbyqxmd.com/read/28409266/intimate-partner-violence-and-prep-acceptability-among-low-income-young-black-women-exploring-the-mediating-role-of-reproductive-coercion
#10
Tiara Willie, Trace Kershaw, Jacquelyn C Campbell, Kamila A Alexander
A few studies suggest that women who experience intimate partner violence (IPV) are willing to use pre-exposure prophylaxis (PrEP), but no research has examined mediators of this relationship. The current study used path analysis to examine a phenomenon closely associated with IPV: reproductive coercion, or explicit male behaviors to promote pregnancy of a female partner without her knowledge or against her will. Birth control sabotage and pregnancy coercion-two subtypes of reproductive coercion behaviors-were examined as mediators of the relationship between IPV and PrEP acceptability among a cohort of 147 Black women 18-25 years of age recruited from community-based organizations in an urban city...
April 13, 2017: AIDS and Behavior
https://www.readbyqxmd.com/read/28406718/pleural-touch-preparations-and-direct-visualization-of-the-pleura-during-medical-thoracoscopy-for-the-diagnosis-of-malignancy
#11
Horiana B Grosu, Macarena R Vial, Erik Vakil, Roberto F Casal, George A Eapen, Rodolfo Morice, John Stewart, Mona G Sarkiss, David E Ost
RATIONALE: During diagnostic thoracoscopy, talc pleurodesis following biopsy is appropriate if the probability of malignancy is sufficiently high. Findings on direct visual assessment of the pleura during thoracoscopy, rapid onsite evaluation (ROSE) of touch preparations (touch preps) of thoracoscopic biopsy specimens and preoperative imaging, may help predict the likelihood of malignancy; however, data on the performance of these methods are limited. OBJECTIVE: To assess the performance of ROSE of touch preps, direct visual assessment of the pleura during thoracoscopy and preoperative imaging in diagnosing malignancy...
April 13, 2017: Annals of the American Thoracic Society
https://www.readbyqxmd.com/read/28403211/the-potential-impact-and-cost-of-focusing-hiv-prevention-on-young-women-and-men-a-modeling-analysis-in-western-kenya
#12
Ramzi A Alsallaq, Jasmine Buttolph, Charles M Cleland, Timothy Hallett, Irene Inwani, Kawango Agot, Ann E Kurth
OBJECTIVE: We compared the impact and costs of HIV prevention strategies focusing on youth (15-24 year-old persons) versus on adults (15+ year-old persons), in a high-HIV burden context of a large generalized epidemic. DESIGN: Compartmental age-structured mathematical model of HIV transmission in Nyanza, Kenya. INTERVENTIONS: The interventions focused on youth were high coverage HIV testing (80% of youth), treatment at diagnosis (TasP, i.e...
2017: PloS One
https://www.readbyqxmd.com/read/28400382/scotland-s-approval-of-prep-creates-postcode-lottery-in-uk-say-campaigners
#13
Bryan Christie
No abstract text is available yet for this article.
April 11, 2017: BMJ: British Medical Journal
https://www.readbyqxmd.com/read/28399558/brief-report-hormonal-contraception-is-not-associated-with-reduced-art-effectiveness-among-women-initiating-art-evidence-from-longitudinal-data
#14
Rena C Patel, Jared M Baeten, Renee Heffron, Ting Hong, Nicole L Davis, Kavita Nanda, Robert W Coombs, Jairam R Lingappa, Elizabeth A Bukusi, Stacey Hurst, Katherine K Thomas, Athena P Kourtis, Nelly Mugo
BACKGROUND: To explore the association between concomitant hormonal contraceptive and antiretroviral therapy (ART) use and (1) plasma viral suppression and (2) genital HIV shedding among HIV-positive women initiating ART. METHODS: We analyzed plasma viral load and genital viral RNA shedding from 1079 HIV-positive women initiating ART who were followed prospectively in 3 sub-Saharan African HIV prevention studies. Plasma and endocervical swab samples were collected every 6 months...
May 1, 2017: Journal of Acquired Immune Deficiency Syndromes: JAIDS
https://www.readbyqxmd.com/read/28392673/-life-steps-for-prep-adherence-demonstration-of-a-cbt-based-intervention-to-increase-adherence-to-preexposure-prophylaxis-prep-medication-among-sexual-minority-men-at-high-risk-for-hiv-acquisition
#15
S Wade Taylor, Christina Psaros, David W Pantalone, Jake Tinsley, Steven A Elsesser, Kenneth H Mayer, Steven A Safren
One dramatic advance in human immunodeficiency virus (HIV) prevention efforts has been the prescription of medications typically used for HIV treatment as prophylaxis against acquiring HIV. As a preventative agent, this practice is referred to as "preexposure prophylaxis" (PrEP). The U.S. Federal Drug Administration approved daily PrEP for adults at risk for HIV who do not consistently use condoms during sex with HIV-infected or unknown-status partners. In this paper, we describe a cognitive-behavioral therapy (CBT) PrEP adherence intervention developed for use in high-risk sexual-minority men in the United States, adapted from "Life-Steps," an evidence-based CBT intervention to promote adherence to HIV treatment...
February 2017: Cognitive and Behavioral Practice
https://www.readbyqxmd.com/read/28384841/constrained-binary-classification-using-ensemble-learning-an-application-to-cost-efficient-targeted-prep-strategies
#16
Wenjing Zheng, Laura Balzer, Mark van der Laan, Maya Petersen
Binary classification problems are ubiquitous in health and social sciences. In many cases, one wishes to balance two competing optimality considerations for a binary classifier. For instance, in resource-limited settings, an human immunodeficiency virus prevention program based on offering pre-exposure prophylaxis (PrEP) to select high-risk individuals must balance the sensitivity of the binary classifier in detecting future seroconverters (and hence offering them PrEP regimens) with the total number of PrEP regimens that is financially and logistically feasible for the program...
April 6, 2017: Statistics in Medicine
https://www.readbyqxmd.com/read/28382726/improved-dark-blood-late-gadolinium-enhancement-db-lge-imaging-using-an-optimized-joint-inversion-preparation-and-t2-magnetization-preparation
#17
Tamer A Basha, Maxine C Tang, Connie Tsao, Cory M Tschabrunn, Elad Anter, Warren J Manning, Reza Nezafat
PURPOSE: To develop a dark blood-late gadolinium enhancement (DB-LGE) sequence that improves scar-blood contrast and delineation of scar region. METHODS: The DB-LGE sequence uses an inversion pulse followed by T2 magnetization preparation to suppress blood and normal myocardium. Time delays inserted after preparation pulses and T2 -magnetization-prep duration are used to adjust tissue contrast. Selection of these parameters was optimized using numerical simulations and phantom experiments...
April 5, 2017: Magnetic Resonance in Medicine: Official Journal of the Society of Magnetic Resonance in Medicine
https://www.readbyqxmd.com/read/28377421/a-cross-sectional-analysis-of-trichomonas-vaginalis-infection-among-heterosexual-hiv-1-serodiscordant-african-couples
#18
Aaron F Bochner, Jared M Baeten, Alison S Rustagi, Edith Nakku-Joloba, Jairam R Lingappa, Nelly R Mugo, Elizabeth A Bukusi, Saidi Kapiga, Sinead Delany-Moretlwe, Connie Celum, Ruanne V Barnabas
OBJECTIVES: Trichomonas vaginalis is the most prevalent curable STI worldwide and has been associated with adverse health outcomes and increased HIV-1 transmission risk. We conducted a cross-sectional analysis among couples to assess how characteristics of both individuals in sexual partnerships are associated with the prevalence of male and female T. vaginalis infection. METHODS: African HIV-1 serodiscordant heterosexual couples were concurrently tested for trichomoniasis at enrolment into two clinical trials...
April 4, 2017: Sexually Transmitted Infections
https://www.readbyqxmd.com/read/28370177/blood-safety-implications-of-donors-using-hiv-pre-exposure-prophylaxis
#19
C R Seed, H Yang, J F Lee
HIV pre-exposure prophylaxis (PrEP) is the use of one or more antiretroviral medications (in combination) to prevent HIV infection. The most commonly used PrEP medication (Truvada(®) , Gilead Sciences, Inc.) acts by inhibiting HIV-1 reverse transcriptase. If someone who is using PrEP unknowingly becomes HIV infected (termed 'PrEP breakthrough infection'), there may be suppressed viral replication resulting in a virus level undetectable by the most sensitive HIV NAT. Failure to seroconvert and seroreversion (loss of previously detectable HIV antibodies) have also both been observed with 2nd, 3rd and 4th generation screening immunoassays, as well as Western blot assays...
March 31, 2017: Vox Sanguinis
https://www.readbyqxmd.com/read/28363410/factors-related-to-pre-exposure-prophylaxis-prescription-by-u-s-primary-care-physicians
#20
Jennifer L Walsh, Andrew E Petroll
INTRODUCTION: Although pre-exposure prophylaxis (PrEP) greatly reduces risk of HIV infection in HIV-negative individuals, use is not widespread enough to impact HIV incidence. Involvement of primary care physicians (PCPs) in PrEP prescription is essential, but previous research has shown low rates of prescription among PCPs. To identify targets for interventions, the information-motivation-behavioral skills model for PrEP discussion and prescription was tested in a ten-city sample of PCPs...
March 28, 2017: American Journal of Preventive Medicine
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