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https://www.readbyqxmd.com/read/28820622/latent-growth-curve-modeling-of-non-injection-drug-use-and-condomless-sexual-behavior-from-ages-18-to-21-in-gay-bisexual-and-other-ymsm-the-p18-cohort-study
#1
Perry N Halkitis, Kristen Bub, Christopher B Stults, Francesca C Bates, Farzana Kapadia
BACKGROUND: HIV/AIDS continues to be a health disparity faced by sexual minority men, and is exacerbated by non-injection drug use. OBJECTIVES: We sought to delineate growth in non-injection drug use and condomless sex in a sample of racially and economically diverse of gay, bisexual, and other young men who have sex with men (YMSM) as they emerged into adulthood between the ages of 18 and 21 and who came of age in the post-HAART era. METHODS: Behavioral data on drug use and condomless sex, collected via a calendar based technique over 7 waves of a cohort study of 600 YMSM, were analyzed using latent growth curve modeling to document patterns of growth in these behaviors, their associations, and the extent to which patterns and associations are moderated by race/ethnicity and socioeconomic status...
August 18, 2017: Substance Use & Misuse
https://www.readbyqxmd.com/read/28819988/behavior-change-following-hiv-diagnosis-findings-from-a-cohort-of-los-angeles-msm
#2
Pamina M Gorbach, Marjan Javanbakht, Robert K Bolan
The effect of an HIV diagnosis on subsequent behavior of men who have sex with men (MSM) remains unclear. From 2009 to 2012 the NIDA funded Metromates Study enrolled and followed for one year MSM seeking testing for HIV in Los Angeles, assessing those with new HIV diagnoses for acute/recent HIV infection. Behavioral data were collected via Computer-Assisted Self-Interview from 321 men of whom 125 were classified as recently HIV infected, 91 as not recently HIV infected, and 105 as HIV-negative. Differences over time between those with recent HIV infection, not recent HIV infection, and no HIV were evaluated using bivariate and multivariable analyses for repeat measures to assess associations between HIV group, behaviors and condomless receptive (CRAI), intersertive (CIAI), or any condomless anal intercourse (CAI)...
August 18, 2017: AIDS Care
https://www.readbyqxmd.com/read/28811240/changes-in-mucosal-and-serum-immunoglobulin-levels-of-california-sea-lions-during-early-development
#3
W Espinosa-de Aquino, M Bailey, K Acevedo-Whitehouse
To date, most studies on pinniped immunoglobulins have focused on circulating antibodies. However, systemic and local immune activities differ in terms of maturation, intensity, and types of effectors that participate. Here, we examined levels of three immunoglobulin isotypes, IgG, IgM and IgA, in the blood and mucosal membranes of free-living California sea lion pups. We investigated whether age, body condition and sex influenced their concentration. Isotype levels varied among tissues, with age-related patterns that could be indicative of differential regulation along development...
August 12, 2017: Developmental and Comparative Immunology
https://www.readbyqxmd.com/read/28810356/relationship-cognitions-and-longitudinal-trajectories-of-sexual-risk-behavior-among-young-gay-and-bisexual-men-the-p18-cohort-study
#4
Stephanie H Cook, Perry N Halkitis, Farzana Kapadia
This study examines how romantic relationship cognitions are associated with changes of condomless anal sex among emerging adult gay and bisexual men. The sample was drawn from four waves of a prospective cohort study ( N = 598; Mage = 18.2). Results suggest that condomless anal sex increased over the emerging adulthood period. Romantic relationship fear was associated with increased receptive condomless anal sex. Perceptions of greater romantic relationship control increased the likelihood of having insertive and receptive condomless anal sex...
October 1, 2016: Journal of Health Psychology
https://www.readbyqxmd.com/read/28809774/high-prevalence-of-concurrent-male-male-partnerships-in-the-context-of-low-human-immunodeficiency-virus-testing-among-men-who-have-sex-with-men-in-bamako-mali
#5
Avi Hakim, Padmaja Patnaik, Nouhoum Telly, Tako Ballo, Bouyagui Traore, Seydou Doumbia, Maria Lahuerta
BACKGROUND: Concurrent male-male sexual partnerships have been understudied in sub-Saharan Africa and are especially important because human immunodeficiency virus (HIV) prevalence and acquisition probability are higher among men who have sex with men (MSM) than among heterosexual men and women. METHODS: We conducted a respondent-driven sampling survey of 552 men who have sex with men in Bamako, Mali from October 2014 to February 2015. Eligibility criteria included 18 years or older, history of oral or anal sex with another man in the last 6 months, residence in or around Bamako in the last 6 months, ability to communicate in French...
September 2017: Sexually Transmitted Diseases
https://www.readbyqxmd.com/read/28809772/low-prevalence-of-urethral-lymphogranuloma-venereum-infections-among-men-who-have-sex-with-men-a-prospective-observational-study-sexually-transmitted-infection-clinic-in-amsterdam-the-netherlands
#6
Nynke H N de Vrieze, Bart Versteeg, Sylvia M Bruisten, Martijn S van Rooijen, Jannie J van der Helm, Henry J C de Vries
In contrast to anorectal lymphogranuloma venereum (LGV), few urogenital LGV cases are reported in men who have sex with men. Lymphogranuloma venereum was diagnosed in 0.06% (7/12,174) urine samples, and 0.9% (109/12,174) anorectal samples. Genital-anal transmission seems unlikely the only mode of transmission. Other modes like oral-anal transmission should be considered.
September 2017: Sexually Transmitted Diseases
https://www.readbyqxmd.com/read/28807605/adjuvant-hpv-vaccination-for-anal-cancer-prevention-in-hiv-positive-men-who-have-sex-with-men-the-time-is-now
#7
Ashish A Deshmukh, Scott B Cantor, Elisabeth Fenwick, Elizabeth Y Chiao, Alan G Nyitray, Elizabeth A Stier, Stephen E Goldstone, Timothy Wilkin, Jagpreet Chhatwal
IMPORTANCE: Outcomes of treating high-grade squamous intraepithelial lesions (HSIL), a precursor to anal cancer, remain uncertain. Emerging evidence shows that post HSIL treatment adjuvant quadrivalent human papillomavirus (qHPV) vaccination improves the effectiveness of treatment. However, no recommendations exist regarding the use of qHPV vaccine as an adjuvant form of therapy. Our objective was to determine whether post-treatment adjuvant vaccination should be adopted in HIV-infected MSM (individuals at highest risk for anal cancer) on the basis of cost-effectiveness determined using existing evidence or whether future research is needed...
August 11, 2017: Vaccine
https://www.readbyqxmd.com/read/28796537/heterosexual-women-s-anal-sex-attitudes-and-motivations-a-focus-group-study
#8
Kimberly R McBride
Focus group methods were used to explore heterosexual women's receptive anal sex attitudes and motivations. Behaviors under investigation included penile-anal intercourse (PAI), manual-anal stimulation, oral-anal contact, and the use of sex toys. A total of 33 self-identified heterosexual women ages 18 to 30 recruited from two metropolitan areas in the Midwestern United States participated in one of six focus groups. The findings suggest that women viewed heterosexual anal sex as an emerging norm. Attitudes and motivations were complex and varied by behavior...
August 10, 2017: Journal of Sex Research
https://www.readbyqxmd.com/read/28789853/targeted-human-papillomavirus-vaccination-for-young-men-who-have-sex-with-men-in-australia-yields-significant-population-benefits-and-is-cost-effective
#9
Lei Zhang, David G Regan, Jason J Ong, Manoj Gambhir, Eric P F Chow, Huachun Zou, Matthew Law, Jane Hocking, Christopher K Fairley
BACKGROUND: We investigated the effectiveness and cost-effectiveness of a targeted human papillomavirus (HPV) vaccination program for young (15-26) men who have sex with men (MSM). METHODS: We developed a compartmental model to project HPV epidemic trajectories in MSM for three vaccination scenarios: a boys program, a targeted program for young MSM only and the combination of the two over 2017-2036. We assessed the gain in quality-adjusted-life-years (QALY) in 190,000 Australian MSM...
August 5, 2017: Vaccine
https://www.readbyqxmd.com/read/28776706/exploring-jordan-s-rule-in-pacific-three-spined-stickleback-gasterosteus-aculeatus
#10
M R J Morris, E Petrovitch, E Bowles, H A Jamniczky, S M Rogers
Coastal marine Gasterosteus aculeatus were captured from seven locations along the Pacific coast of North America, ranging across 21·8° latitude to test Jordan's rule, i.e. that vertebral number should increase with increasing latitude for related populations of fish. Vertebral number significantly increased with increasing latitude for both total and caudal vertebral number. Increasing length with latitude (sensu Bergmann's rule) was also supported, but the predictions for Jordan's rule held when controlling for standard length...
August 2017: Journal of Fish Biology
https://www.readbyqxmd.com/read/28771112/cherry-picking-virginity-loss-definitions-among-gay-and-straight-cisgender-men
#11
Howard Huang
Virginity loss is a vital milestone in the development of one's sexual identity. Unfortunately, there is very little literature available studying virginity loss definitions among the wider straight population, and even less examining virginity loss among LGBTQ+ populations. The present study recruited 251 (45.4%) cisgender straight men and 114 (54.6%) cisgender gay men. An online, anonymous survey was administered to explore whether they considered various Male-on-Male (M-M) and Male-on-Female (M-F) sexual behaviors as constitutive of virginity loss...
August 3, 2017: Journal of Homosexuality
https://www.readbyqxmd.com/read/28766026/rectal-douching-among-men-who-have-sex-with-men-in-paris-implications-for-hiv-sti-risk-behaviors-and-rectal-microbicide-development
#12
H Rhodes Hambrick, Su Hyun Park, William C Goedel, Jace G Morganstein, Noah T Kreski, Ofole Mgbako, Dustin T Duncan
Rectal douching is a common but potentially risky practice among MSM; MSM who douche may be ideal candidates for rectal microbicides as HIV prevention. Herein we explored rectal douching and its association with condomless receptive anal intercourse (CRAI), group sex, rates of HIV and other STIs, and likelihood to use rectal microbicide gels. We recruited a sample of 580 MSM from a geosocial-networking smartphone application in Paris, France in 2016. Regression models estimated adjusted risk ratios (aRRs) for associations between rectal douche use and (1) engagement in CRAI, (2) group sex, (3) self-reported HIV and STI diagnoses, and (4) likelihood to use rectal microbicide gels for HIV prevention...
August 1, 2017: AIDS and Behavior
https://www.readbyqxmd.com/read/28763921/-a-survey-on-high-risk-behaviors-and-hiv-infection-among-men-having-sex-with-men-who-use-drugs-in-tianjin-in-2016
#13
D Shan, D Wu, L Liu, H Liu, W Y Yin, M H Yu, J Yang, J P Sun, D P Zhang
Objective: To analyze the characteristics of high risk sexual behaviors and HIV infectious status among men who have sex with men (MSM) who use drugs in Tianjin in 2016. Methods: From April to December in 2016, MSM who use drugs in Tianjin were targetedly and extensively mobilized to receive testing by snowball sampling method. The inclusion criteria were as follows: men aged 18 years old and above; have had oral or anal sex with men in the last 6 months; have had drug abuse history in the last 6 months, including the use of rush poppers, 5-Methoxy-diisopropyltryptamine (5-MeO-DiPT), and Methamphetamine Synthesis substances; and with no mental disorder or mental deficiency...
August 6, 2017: Zhonghua Yu Fang Yi Xue za Zhi [Chinese Journal of Preventive Medicine]
https://www.readbyqxmd.com/read/28763709/similar-mechanisms-of-traumatic-rectal-injuries-in-patients-who-had-anal-sex-with-animals-to-those-who-were-butt-fisted-by-human-sexual-partner
#14
Damian Jacob Sendler
Sexual pleasure comes in various forms of physical play, for many it involves stimulation of the vagina, while the anus for others; some enjoy both. A recent report by Cappelletti et al.(1) shows a meta-analysis of cases describing anal trauma due to sexual fisting in human partners. This clinical article reports four cases of males diagnosed with zoophilia, and who received anal sex from animals, resulting in injuries. Surgical and psychiatric evaluations are summarized. Unusual etiology of sexual activity with animals caused peri-anal trauma in men who engaged in anal sex with dogs and farm animals...
July 25, 2017: Journal of Forensic and Legal Medicine
https://www.readbyqxmd.com/read/28755518/hymen-protection-and-the-sexual-practices-perceptions-and-attitudes-of-female-university-students-from-lebanon
#15
Faysal El Kak, Noura El Salibi, Rola Yasmine, Lilian Ghandour
OBJECTIVE: To investigate associations between hymen protection and women's alternative sexual practices, perceptions, and attitudes. METHODS: A cross-sectional online survey was administered among university students (aged 18-30 years) in Lebanon between April 30 and August 31, 2012. The present analysis focused on female students who had engaged in oral/anal sex. RESULTS: Among 416 included women, 163 (39.3%) reported anal/oral sex to protect their hymen...
July 29, 2017: International Journal of Gynaecology and Obstetrics
https://www.readbyqxmd.com/read/28750059/high-levels-of-adherence-to-a-rectal-microbicide-gel-and-to-oral-pre-exposure-prophylaxis-prep-achieved-in-mtn-017-among-men-who-have-sex-with-men-msm-and-transgender-women
#16
Alex Carballo-Diéguez, Ivan C Balán, William Brown, Rebecca Giguere, Curtis Dolezal, Cheng-Shiun Leu, Mark A Marzinke, Craig W Hendrix, Jeanna M Piper, Barbra A Richardson, Cynthia Grossman, Sherri Johnson, Kailazarid Gomez, Stephanie Horn, Ratiya Pamela Kunjara Na Ayudhya, Karen Patterson, Cindy Jacobson, Linda-Gail Bekker, Suwat Chariyalertsak, Anupong Chitwarakorn, Pedro Gonzales, Timothy H Holtz, Albert Liu, Kenneth H Mayer, Carmen Zorrilla, Javier Lama, Ian McGowan, Ross D Cranston
Trials to assess microbicide safety require strict adherence to prescribed regimens. If adherence is suboptimal, safety cannot be adequately assessed. MTN-017 was a phase 2, randomized sequence, open-label, expanded safety and acceptability crossover study comparing 1) daily oral emtricitabine/tenofovir disoproxil fumarate (FTC/TDF), 2) daily use of reduced-glycerin 1% tenofovir (RG-TFV) gel applied rectally, and 3) RG-TFV gel applied before and after receptive anal intercourse (RAI)-if participants had no RAI in a week, they were asked to use two doses of gel within 24 hours...
2017: PloS One
https://www.readbyqxmd.com/read/28747274/efficacy-safety-and-effect-on-sexual-behaviour-of-on-demand-pre-exposure-prophylaxis-for-hiv-in-men-who-have-sex-with-men-an-observational-cohort-study
#17
Jean-Michel Molina, Isabelle Charreau, Bruno Spire, Laurent Cotte, Julie Chas, Catherine Capitant, Cecile Tremblay, Daniela Rojas-Castro, Eric Cua, Armelle Pasquet, Camille Bernaud, Claire Pintado, Constance Delaugerre, Luis Sagaon-Teyssier, Soizic Le Mestre, Christian Chidiac, Gilles Pialoux, Diane Ponscarme, Julien Fonsart, David Thompson, Mark A Wainberg, Veronique Doré, Laurence Meyer
BACKGROUND: Data for on-demand pre-exposure prophylaxis (PrEP) are scarce. We implemented a cohort study to assess its efficacy, safety, and effect on sexual behaviour. METHODS: We invited men and transgender women who have sex with men, previously enrolled in the randomised placebo-controlled ANRS IPERGAY trial at seven sites (six in France and one in Canada), to participate in an open-label extension with on-demand tenofovir disoproxil fumarate (300 mg) and emtricitabine (200 mg) to be taken before and after sexual intercourse...
July 21, 2017: Lancet HIV
https://www.readbyqxmd.com/read/28746167/factors-associated-with-prevalent-hiv-infection-among-kenyan-msm-the-anza-mapema-study
#18
Colin P Kunzweiler, Robert C Bailey, Duncan O Okall, Susan M Graham, Supriya D Mehta, Fredrick O Otieno
BACKGROUND: In order to inform future HIV treatment and care programs for men who have sex with men (MSM), we assessed the prevalence of and factors associated with previously diagnosed out-of-care (PDOC) or newly diagnosed out-of-care (NDOC) HIV infection among MSM enrolled in the prospective Anza Mapema cohort study. METHODS: Participants were aged >18, reported oral or anal sex with a man in the past 6 months, and were not already in HIV care or taking antiretroviral therapy in the past 3 months...
July 24, 2017: Journal of Acquired Immune Deficiency Syndromes: JAIDS
https://www.readbyqxmd.com/read/28733826/validation-of-the-hiv-risk-assessment-of-sexual-partnerships-h-rasp-comparison-to-a-2-month-prospective-diary-study
#19
Gregory Swann, Michael E Newcomb, Brian Mustanski
The HIV Risk Assessment of Sexual Partnerships (H-RASP) was developed in order to create a retrospective measure of sexual risk-taking that can account for the differing contexts of sexual partnership(s) within a specified period of time. In order to validate the H-RASP relative to other methods of measuring sexual risk-taking, measurements from the H-RASP were compared to data from a prospective diary study of 95 young men who have sex with men over the same two-month period. We found that the H-RASP was not significantly different at measuring participants' total number of sexual partners and total number of anal sex partners in comparison with the diaries...
July 21, 2017: Archives of Sexual Behavior
https://www.readbyqxmd.com/read/28729879/safety-and-immunogenicity-of-the-quadrivalent-human-papillomavirus-qhpv-vaccine-in-hiv-positive-spanish-men-who-have-sex-with-men-msm
#20
Carmen Hidalgo-Tenorio, Jessica Ramírez-Taboada, Concepción Gil-Anguita, Javier Esquivias, Mohamed Omar-Mohamed-Balgahata, Antonio SamPedro, Miguel Lopez-Ruz, Juan Pasquau
BACKGROUND: Safety and immunogenicity of the quadrivalent human papillomavirus (qHPV) vaccine were evaluated in HIV-positive Spanish MSM. The prevalence of High Squamous Intraepithelial Lesions (HSIL) and genotypes of high-risk human papillomavirus (HR-HPV) were also determined, as well as risk factors associated with the presence of HR-HPV in anal mucosa. METHODS: This is a randomised, double blind, placebo-controlled trial of the quadrivalent HPV (qHPV) vaccine...
2017: AIDS Research and Therapy
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