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https://www.readbyqxmd.com/read/29148839/sexual-risk-behaviors-and-perceptions-of-men-who-go-to-gay-sex-parties-in-new-york-city-comparisons-between-three-hiv-groups
#1
Étienne Meunier, Karolynn Siegel
Men who have sex with men (MSM) who attend group-sex events often engage in risky sexual behaviors that contribute to the high human immunodeficiency virus (HIV) incidence among this population. We conducted an online survey with 211 New York City MSM who attended sex parties in the prior year and asked them to describe their behaviors and perceptions of risk. We compared responses from HIV-positive-undetectable men (n = 36), HIV-negative men on pre-exposure prophylaxis (PrEP; n = 62), and HIV-negative men never on PrEP (n = 113)...
November 17, 2017: Journal of Sex Research
https://www.readbyqxmd.com/read/29145597/laboratory-testing-of-a-cohort-of-commercially-insured-users-of-hiv-preexposure-prophylaxis-in-the-united-states-2011-2015
#2
Ya-Lin A Huang, Guoyu Tao, Taraz Samandari, Karen W Hoover
To ensure the health and safety of persons taking antiretroviral medication for HIV preexposure prophylaxis (PrEP), CDC guidelines recommend initial and follow-up laboratory testing. We assessed the rates of recommended testing using a commercial insurance claims database. Before taking PrEP, 45% of users were tested for HIV, 31% for creatinine, 55% for syphilis, 43% for chlamydia/gonorrhea, and 38% for hepatitis B. By 6 months after PrEP initiation, 38% were tested for HIV, 37% for creatinine, 49% for syphilis, and 39% for chlamydia/gonorrhea...
November 14, 2017: Journal of Infectious Diseases
https://www.readbyqxmd.com/read/29143163/sex-prep-and-stigma-experiences-with-hiv-pre-exposure-prophylaxis-among-new-york-city-msm-participating-in-the-hptn-067-adapt-study
#3
Julie Franks, Yael Hirsch-Moverman, Avelino S Loquere, K Rivet Amico, Robert M Grant, Bonnie J Dye, Yan Rivera, Robert Gamboa, Sharon B Mannheimer
The HPTN 067/Alternative Dosing to Augment Pre-Exposure Prophylaxis Pill Taking (ADAPT) study evaluated daily and non-daily dosing schedules for oral pre-exposure prophylaxis (PrEP) to prevent HIV. A qualitative sub-study including focus groups and in-depth interviews was conducted among men who have sex with men participating in New York City to understand their experience with PrEP and study dosing schedules. The 37 sub-study participants were 68% black, 11% white, and 8% Asian; 27% were of Hispanic/Latino ethnicity...
November 15, 2017: AIDS and Behavior
https://www.readbyqxmd.com/read/29140872/an-experimental-investigation-of-implicit-hiv-and-prep-stigma-evidence-for-ancillary-benefits-of-prep-use
#4
Sarit A Golub, Corina Lelutiu-Weinberger, Anthony Surace
BACKGROUND: PrEP stigma (i.e., negative attitudes toward PrEP users) has been widely documented and is considered a significant barrier to implementation. However, few studies have examined PrEP stigma using implicit measures designed to reduce demand characteristics in responding. This study examined implicit PrEP- and HIV-related stigma among gay and bisexual men using geospatial social networking applications (i.e., "hookup apps"). METHODS: Participants were presented with four simulated online profiles (pre-tested for comparability) paired with each of the following characteristics: HIV-negative, HIV-positive, on PrEP, or Substance User...
November 13, 2017: Journal of Acquired Immune Deficiency Syndromes: JAIDS
https://www.readbyqxmd.com/read/29139209/protocol-for-a-new-concept-of-no-prep-ultrathin-ceramic-veneers
#5
Camillo D'Arcangelo, Mirco Vadini, Maurizio D'Amario, Zaccheo Chiavaroli, Francesco De Angelis
OBJECTIVES: No-prep veneers, although ideally considered the best option because of tooth structure maximum preservation, have been frequently criticized for some potential limitations including esthetic outcomes and periodontal complications. CLINICAL CONSIDERATIONS: A new protocol to optimize no-prep veneers restorations is presented. A key point of the proposed technique is to identify optimal margins' positions: margin is positioned in the point of maximum convexity of teeth, avoiding the over contouring of traditional no-prep veneers...
November 15, 2017: Journal of Esthetic and Restorative Dentistry
https://www.readbyqxmd.com/read/29138982/characterizing-the-hiv-prevention-and-care-continua-in-a-sample-of-transgender-youth-in-the-u-s
#6
Sari L Reisner, Laura Jadwin-Cakmak, Jaclyn M White Hughto, Miguel Martinez, Liz Salomon, Gary W Harper
In the U.S., transgender and other gender minority (TG) youth are an at-risk group understudied in HIV prevention and treatment. This study sought to characterize the HIV prevention and care continua in a diverse sample of 181 sexually-active TG ages 16-24 years (mean age = 20.7 years; 76.8% trans feminine; 69.1% youth of color) recruited July-December 2015 in 14 U.S. cities. Overall, 30.9% reported living with HIV, of which 71.4% were on antiretroviral therapy (ART) and 55.0% were medication adherent; 65...
November 14, 2017: AIDS and Behavior
https://www.readbyqxmd.com/read/29137378/trastuzumab-distribution-in-an-in-vivo-and-in-vitro-model-of-brain-metastases-of-breast-cancer
#7
Tori B Terrell-Hall, Mohamed Ismail Nounou, Fatema El-Amrawy, Jessica I G Griffith, Paul R Lockman
Background: Drug and antibody delivery to brain metastases has been highly debated in the literature. The blood-tumor barrier (BTB) is more permeable than the blood-brain barrier (BBB), and has shown to have highly functioning efflux transporters and barrier properties, which limits delivery of targeted therapies. Methods: We characterized the permeability of (125)I-trastuzumab in an in-vivo, and fluorescent trastuzumab-Rhodamine123 (t-Rho123) in a novel microfluidic in-vitro, BBB and BTB brain metastases of breast cancer model...
October 13, 2017: Oncotarget
https://www.readbyqxmd.com/read/29136745/-willingness-and-influencing-factors-of-using-pre-exposure-prophylaxis-among-301-men-have-sex-with-men-in-wuhan-city-2015
#8
P Y Xie, X Wang, P L Liu, X D Tan, W Zhou
Objective: To understand willingness and influencing factors of using pre-exposure prophylaxis (Pr-EP) among men who have sex with men (MSM). Methods: Snow ball sampling was employed to recruit MSM in the social spaces (like bars and bathrooms) with focused activities by MSM and internet (QQ and Wechat) in Wuhan between August and November, 2015. 304 MSM were considered eligible when they were self-identified MSM and has had sex with men in the previous 12 months, over the age of 18 and have full civil liability...
November 6, 2017: Zhonghua Yu Fang Yi Xue za Zhi [Chinese Journal of Preventive Medicine]
https://www.readbyqxmd.com/read/29136554/separation-and-purification-of-four-phenolic-compounds-from-persimmon-by-high-speed-counter-current-chromatography
#9
Jinming Peng, Kaikai Li, Wei Zhu, Xiangyi Deng, Chunmei Li
An efficient method was established by high-speed counter-current chromatography (HSCCC) for preparation of four phenolic compounds from the depolymerization products of persimmon tannin. Using the two solvent systems of n-hexane/ethyl acetate/water (3:17:20, v/v/v) and ethyl acetate/methanol/water (50:1:50, v/v/v), the preparative isolation was successfully performed by a two-step separation. The yields of one run (150mg crude sample) for gallic acid, methyl gallate, and epigallocatechin-3-gallate-(4β→8, 2β→O→7)-epigallocatechin-3-gallate dimer (A-type EGCG dimer) were 4...
November 7, 2017: Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences
https://www.readbyqxmd.com/read/29135656/frequency-of-monitoring-kidney-function-in-hiv-uninfected-persons-using-daily-oral-tenofovir-disoproxil-fumarate-pre-exposure-prophylaxis
#10
Kenneth K Mugwanya, Jared M Baeten, Christina Wyatt, Nelly R Mugo, Connie L Celum, Allan Ronald, John Kiarie, Elly Katabira, Renee Heffron
BACKGROUND: Wide-scale implementation of oral tenofovir-based pre-exposure prophylaxis (PrEP) for HIV prevention is now policy in many settings. However, the optimal frequency for monitoring kidney function remains uncertain. We investigated the impact of 6-monthly compared to 3-monthly creatinine clearance (CrCl) monitoring on the identification of moderate kidney dysfunction, defined as CrCl <60 mL/min. METHODS: Data were from two prospective daily oral PrEP studies in Kenya and Uganda: the Partners PrEP Study, a randomized safety and efficacy trial of PrEP that conducted 3-monthly CrCl monitoring (n=4404) and the Partners Demonstration Project (n=954), an open-label delivery study of PrEP that used 6-monthly monitoring...
November 6, 2017: Journal of Acquired Immune Deficiency Syndromes: JAIDS
https://www.readbyqxmd.com/read/29135652/are-hiv-seroconversions-among-young-men-who-have-sex-with-men-associated-with-social-network-proximity-to-recently-or-long-term-hiv-infected-individuals
#11
Ethan Morgan, Britt Skaathun, Rebeccah Duvoisin, Stuart Michaels, John A Schneider
Debate remains as to the relative HIV transmission contributions from individuals who are recently HIV infected and individuals who have long-term infections. In this study, we examine the relationship between new HIV seroconversions occurring among young Black men who have sex with men (YBMSM) and network proximity to recently or long-term HIV infected individuals. A cohort of YBMSM (N = 618) was generated through respondent driven sampling across three waves. A recent HIV infection was defined as either: 1) a confirmed seroconversion ≤9 months prior to interview date or 2) a laboratory confirmed acute infection; long-term HIV infected individuals were defined as a diagnosis date ≥9 months prior to interview date...
November 8, 2017: Journal of Acquired Immune Deficiency Syndromes: JAIDS
https://www.readbyqxmd.com/read/29132291/hiv-prevention-needs-for-men-who-have-sex-with-men-in-swaziland
#12
Bhekie Sithole
Men who have sex with men (MSM) have a high HIV burden and also often face multiple other challenges accessing HIV services, including legal and social issues. Although Swaziland recently started responding with interventions for MSM, significant gaps still exist both in information and programming. This study aimed to explore the HIV prevention needs of MSM in Swaziland, including factors elevating their risks and vulnerabilities to HIV infection; to find out what HIV prevention strategies exist; and to determine how best to meet the prevention needs of MSM...
December 2017: African Journal of AIDS Research: AJAR
https://www.readbyqxmd.com/read/29127535/predictors-of-hiv-testing-and-their-influence-on-prep-acceptance-in-men-who-have-sex-with-men-a-cross-sectional-study
#13
Tsz Ho Kwan, Shui Shan Lee
HIV testing is the gateway to biomedical means of prevention and treatment. Identifying predictors of HIV testing is important to inform future preventive interventions. Of 444 men who have sex with men without known HIV infection enrolled in a study in Hong Kong, 64% had ever been HIV-tested. Testers were generally older, better educated, had a higher monthly income, and more likely self-identified as gay. Testers often used Internet and frequented saunas for sex networking, compared with non-testers attending bars, massage centres and public toilets...
November 10, 2017: AIDS and Behavior
https://www.readbyqxmd.com/read/29127058/trace-anti-inflammatory-%C3%AE-carboline-alkaloid-identified-in-arenaria-kansuensis-by-two-dimensional-chromatography-coupled-with-unielut-c18aex-based-solid-phase-extraction-re-enrichment-technology
#14
Yulei Cui, Na Shen, Shuo Wang, Lijuan Mei, Zenggen Liu, Jun Dang, Yanduo Tao
Traditional Chinese medicine is important for discovery of drug precursors. However, information about trace chemical composition of them is very limited due to the lack of appropriate enrichment and chromatographic purification methods In our work, A. kansuensis was taken as an example, a novel two-dimensional reversed-phase/hydrophilic interaction liquid chromatography coupled with UniElut C18AEX solid-phase extraction re-enrichment method based on anti-inflammatory bioactivity-guided assay was developed for gathering and purifying trace β-carboline alkaloids with high purity from the ethyl acetate extract of A...
October 31, 2017: Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences
https://www.readbyqxmd.com/read/29124421/if-you-film-it-will-they-watch-factors-associated-with-willingness-to-view-safer-sex-messaging-in-internet-based-sexually-explicit-media
#15
Martin J Downing, Nadav Antebi-Gruszka, Eric W Schrimshaw, Sabina Hirshfield
Research on the association between viewing condomless sex in sexually explicit media (SEM) and engaging in risk behavior suggests the need for SEM-based safer sex messaging (e.g., PrEP, condom use), though few studies have considered viewer willingness to watch SEM containing HIV/STI prevention messages. Online survey data from a racially diverse sample of 859 men and women were used to investigate factors associated with willingness to watch SEM with safer sex messaging. Analyses were conducted separately for three groups: heterosexual men and other men who only report sex with women, heterosexual women and other women who only report sex with men, and gay, bisexual, and other men who have sex with men...
November 9, 2017: AIDS and Behavior
https://www.readbyqxmd.com/read/29122621/simple-operating-room-bundle-reduces-superficial-surgical-site-infections-after-major-urologic-surgery
#16
Sarah C Vij, Ganesh Kartha, Venkatesh Krishnamurthi, Michelle Ponziano, Howard B Goldman
OBJECTIVE: To reduce our superficial surgical site infection rate (sSSI) following major urologic surgery by implementing a simple operating room bundle. METHODS: A simple operating room bundle was applied to all major urologic cases (cystectomy, nephrectomy and prostatectomy) at a single tertiary referral center. The bundle included allowing skin prep to dry appropriately, changing gloves prior to skin closure, irrigating the wound prior to skin closure and using a new separate sterile closing instrument set for skin closure...
November 6, 2017: Urology
https://www.readbyqxmd.com/read/29119675/tricalycoside-a-new-cerebroside-from-tricalysia-coriacea-rubiaceae
#17
Maurice D Awouafack, Pierre Tane, Hiroyuki Morita
A new cerebroside, named as tricalycoside (1), was isolated from the CH2 Cl2 / MeOH (1:1) extract of twigs and leaves of Tricalysia coriacea using repeated silica gel open column chromatography followed by Prep. TLC and Sephadex LH-20, together with six known compounds (2 - 7). The structure of the new compound was determined by analysis of 1D and 2D NMR, MS data, chemical conversion, and by comparison of these data with those from the literature. Tricalycoside (1) possessed a weak antibacterial activity against Klebsiella pneumoniae (MIC = 75 μg/mL)...
November 8, 2017: Chemistry & Biodiversity
https://www.readbyqxmd.com/read/29119473/preference-of-oral-tenofovir-disoproxil-fumarate-emtricitabine-versus-rectal-tenofovir-reduced-glycerin-1-gel-regimens-for-hiv-prevention-among-cisgender-men-and-transgender-women-who-engage-in-receptive-anal-intercourse-with-men
#18
Alex Carballo-Diéguez, Rebecca Giguere, Curtis Dolezal, Cheng-Shiun Leu, Iván C Balán, William Brown, Christine Rael, Barbra A Richardson, Jeanna M Piper, Linda-Gail Bekker, Suwat Chariyalertsak, Anupong Chitwarakorn, Pedro Gonzales, Timothy H Holtz, Albert Liu, Kenneth H Mayer, Carmen D Zorrilla, Javier R Lama, Ian McGowan, Ross D Cranston
Oral pre-exposure prophylaxis (PrEP) can prevent HIV transmission. Yet, some may prefer not to take systemic daily medication. MTN-017 was a 3-period, phase 2 safety and acceptability study of microbicide gel applied rectally either daily or before and after receptive anal intercourse (RAI), compared to daily oral tablet. At baseline, cisgender men and transgender women who reported RAI (N = 187) rated the daily oral regimen higher in overall liking, ease of use, and likelihood of future use than the gel regimens...
November 8, 2017: AIDS and Behavior
https://www.readbyqxmd.com/read/29119472/msm-at-highest-risk-for-hiv-acquisition-express-greatest-interest-and-preference-for-injectable-antiretroviral-prep-compared-to-daily-oral-medication
#19
Katie B Biello, Matthew J Mimiaga, Christopher M Santostefano, David S Novak, Kenneth H Mayer
Men who have sex with men (MSM) account for nearly 70% of new HIV diagnoses, with young black MSM at the highest risk for infection in the United States. Pre-exposure prophylaxis (PrEP) can decrease HIV acquisition in at-risk individuals by over 90%. However, therapeutic efficacy requires a daily pill, posing adherence challenges. Experimental modalities, including injectable PrEP given once every 2 months, may improve adherence among those most in need. To assess interest in and preference for injectable PrEP, an online survey was mounted on two popular MSM sexual networking apps...
November 8, 2017: AIDS and Behavior
https://www.readbyqxmd.com/read/29113139/anti-hiv-activity-of-ocimum-labiatum-extract-and-isolated-pheophytin-a
#20
Petrina Kapewangolo, Martha Kandawa-Schulz, Debra Meyer
Ocimum plants are traditionally used to manage HIV/AIDS in various African countries. The effects of Ocimum labiatum extract on HIV-1 protease (PR) and reverse transcriptase (RT) is presented here along with characterization of an identified bioactive compound, achieved through ¹H- and (13)C-NMR. The extract's effect on HIV-1 replication was assessed by HIV-1 p24 antigen capture. Cytotoxicity of samples was evaluated using tetrazolium dyes and real-time cell electronic sensing (RT-CES). Ocimum labiatum inhibited HIV-1 PR with an IC50 value of 49...
November 6, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
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