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Sexual behavior in humans

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https://www.readbyqxmd.com/read/28734107/extended-release-naltrexone-for-methamphetamine-dependence-among-men-who-have-sex-with-men-a-randomized-placebo-controlled-trial
#1
Phillip O Coffin, Glenn-Milo Santos, Jaclyn Hern, Eric Vittinghoff, Deirdre Santos, Tim Matheson, Grant Colfax, Steven L Batki
BACKGROUND AND AIMS: Methamphetamine use is increasingly prevalent and associated with HIV transmission. Early phase human studies suggested naltrexone reduced amphetamine use among dependent individuals. We tested if extended-release naltrexone (XRNTX) reduces methamphetamine use and associated sexual risk behaviors among high-risk methamphetamine-dependent men who have sex with men (MSM). DESIGN: Double-blind, placebo-controlled, randomized trial of XRTNX versus placebo over 12 weeks from 2012-2015...
July 22, 2017: Addiction
https://www.readbyqxmd.com/read/28729918/white-matter-sexual-dimorphism-of-the-adult-human-brain
#2
Ali K Bourisly, Grace Gejo, Abrar A Hayat, Lamya Alsarraf, Fatima M Dashti, Margherita Di Paola
Sex-biased psychophysiology, behavior, brain function, and conditions are extensive, yet underlying structural brain mechanisms remain unclear. There is contradicting evidence regarding sexual dimorphism when it comes to brain structure, and there is still no consensus on whether or not there exists such a dimorphism for brain white matter. Therefore, we conducted a voxel-based morphometry (VBM) analysis along with global volume analysis for white matter across sex. We analyzed 384 T1-weighted MRI brain images (192 male, 192 female) to investigate any differences in white matter (WM) between males and females...
2017: Translational Neuroscience
https://www.readbyqxmd.com/read/28724513/development-of-a-tailored-hiv-prevention-intervention-for-single-young-men-who-have-sex-with-men-who-meet-partners-online-protocol-for-the-mydex-project
#3
Jose Arturo Bauermeister, Ryan C Tingler, Michele Demers, Gary W Harper
BACKGROUND: New cases of human immunodeficiency virus (HIV) among young men who have sex with men (YMSM), aged 18 to 24, underscore the importance of developmentally-informed HIV programs for YMSM. We developed an online intervention focused on risk reduction strategies across different sexual partner types. Intervention activities focus on assisting YMSM reflect on their partner-seeking behaviors, develop sexual decision-making rules to reduce their HIV risks, and consider the adoption of HIV prevention behaviors...
July 19, 2017: JMIR Research Protocols
https://www.readbyqxmd.com/read/28720446/acceptability-of-multipurpose-human-papillomavirus-vaccines-among-providers-and-mothers-of-adolescent-girls-a-mixed-methods-study-in-five-countries
#4
Nadja A Vielot, Shoshana K Goldberg, Gregory Zimet, Sara B Smith, Mary Anne McDonald, Silvina Ramos, Karen Morgan, Chan Joo Kim, Karin L Richter, Merce Peris, Kevin J Whaley, Jennifer S Smith
INTRODUCTION: Multipurpose vaccines (MPVs) could be formulated to prevent multiple sexually transmitted infections simultaneously. Little is known about acceptability of MPVs among vaccine health care providers (HCPs) or mothers of adolescent girls. METHODS: 151 adolescent vaccine providers and 118 mothers of adolescent girls aged 9-14 were recruited from five geographically-diverse countries: Argentina, Malaysia, South Africa, South Korea, and Spain. We assessed providers' preferences for single-purpose human papillomavirus (HPV) vaccine versus MPVs (including HPV+herpes simplex virus (HSV)-2, HPV+HIV, or HPV+HSV-2+HIV) via quantitative surveys...
June 2017: Papillomavirus Research
https://www.readbyqxmd.com/read/28716771/an-intervention-using-gamification-to-increase-human-immunodeficiency-virus-and-sexually-transmitted-infection-screening-among-young-men-who-have-sex-with-men-in-california-rationale-and-design-of-stick-to-it
#5
Christopher M Mejia, Daniel Acland, Raluca Buzdugan, Reva Grimball, Lauren Natoli, Mark R McGrath, Jeffrey D Klausner, Sandra I McCoy
BACKGROUND: In the United States, young men who have sex with men (YMSM) remain disproportionately affected by human immunodeficiency virus (HIV) and other sexually transmitted infections (STIs). Although routine HIV/STI screening is pivotal to the timely diagnosis of HIV and STIs, initiation of appropriate treatment, and reduced onward disease transmission, repeat screening is underused. Novel interventions that incorporate elements of games, an approach known as gamification, have the potential to increase routinization of HIV/STI screening among YMSM...
July 17, 2017: JMIR Research Protocols
https://www.readbyqxmd.com/read/28713804/facilitating-and-inhibiting-factors-of-sexual-behavior-among-migrants-in-transition-from-mexico-to-the-united-states
#6
Jesús Alejandro Guerra-Ordoñez, Raquel A Benavides-Torres, Rogelio Zapata-Garibay, Dora Julia Onofre-Rodríguez, María Aracely Márquez-Vega, Gabriela Zamora-Carmona
INTRODUCTION: Human immunodeficiency virus/acquired immune deficiency syndrome (HIV/AIDS) is one of the most prevalent infectious diseases in the border region of Mexico due to the flow of migrants under desperate conditions, encouraging casual and unprotected sex. Since this has become a binational public health problem, it is important to understand the factors that predict these sexual behaviors. The aim of the current study was to investigate the facilitators and inhibitors of transition in the sexual behavior of migrants from two border regions on the Mexico-United States (US) border...
2017: Frontiers in Public Health
https://www.readbyqxmd.com/read/28700747/the-association-between-ethnicity-and-vaginal-microbiota-composition-in-amsterdam-the-netherlands
#7
Hanneke Borgdorff, Charlotte van der Veer, Robin van Houdt, Catharina J Alberts, Henry J de Vries, Sylvia M Bruisten, Marieke B Snijder, Maria Prins, Suzanne E Geerlings, Maarten F Schim van der Loeff, Janneke H H M van de Wijgert
OBJECTIVE: To evaluate whether ethnicity is independently associated with vaginal microbiota (VMB) composition in women living in Amsterdam, the Netherlands, as has been shown for American women. METHODS: Women (18-34 years, non-pregnant, N = 610) representing the six largest ethnic groups (Dutch, African Surinamese, South-Asian Surinamese, Turkish, Moroccan, and Ghanaian) were sampled from the population-based HELIUS study. Sampling was performed irrespective of health status or healthcare seeking behavior...
2017: PloS One
https://www.readbyqxmd.com/read/28698969/situating-human-sexual-conditioning
#8
Heather Hoffmann
Conditioning is often thought of as a basic, automatic learning process that has limited applicability to higher-level human behavior. In addition, conditioning is seen as separable from, and even secondary to, "innate" processes. These ideas involve some misconceptions. The aim of this article is to provide a clearer, more refined sense of human sexual conditioning. After providing some background information and reviewing what is known from laboratory conditioning studies, human sexual conditioning is compared to sexual conditioning in nonhumans, to "innate" sexual responding, and to other types of human learning processes...
July 11, 2017: Archives of Sexual Behavior
https://www.readbyqxmd.com/read/28688605/human-papillomavirus-prevalence-in-the-anus-and-urine-among-hiv-infected-japanese-men-who-have-sex-with-men
#9
Hiroshi Yaegashi, Kazuyoshi Shigehara, Ichiro Itoda, Mitsuaki Ohkodo, Kazufumi Nakashima, Shohei Kawaguchi, Mikio Ueda, Koji Izumi, Yoshifumi Kadono, Hiroko Ikeda, Mikio Namiki, Atsushi Mizokami
BACKGROUND: The present study investigated human papillomavirus (HPV) prevalence in anal and urine samples, and evaluated cytological findings among human immunodeficiency virus (HIV)-infected Japanese men who have sex with men (MSM). METHODS: A total of 148 patients were enrolled. Anal and urine samples were collected from each participant, and a HPV-DNA test and genotyping were performed using flow-through hybridization. In addition, anal cytology was evaluated based on Papanicolaou staining...
July 6, 2017: Journal of Infection and Chemotherapy: Official Journal of the Japan Society of Chemotherapy
https://www.readbyqxmd.com/read/28687531/informing-the-development-of-a-mobile-phone-hiv-testing-intervention-intentions-to-use-specific-hiv-testing-approaches-among-young-black-transgender-women-and-men-who-have-sex-with-men
#10
Beryl A Koblin, Vijay Nandi, Sabina Hirshfield, Mary Ann Chiasson, Donald R Hoover, Leo Wilton, DaShawn Usher, Victoria Frye
BACKGROUND: Regular human immunodeficiency virus (HIV) testing of persons at risk is critical to HIV prevention. Infrequent HIV testing and late diagnosis of HIV infection have been observed among young black men who have sex with men (MSM) and transwomen (transgender women)-two groups overrepresented in the HIV epidemic. OBJECTIVE: The objective of this study was to inform the development of a brief mobile phone intervention to increase HIV testing among young black MSM and transwomen by providing a tailored recommendation of an optimal HIV testing approach...
July 7, 2017: JMIR Public Health and Surveillance
https://www.readbyqxmd.com/read/28681975/exposure-effects-of-levonorgestrel-on-oogenesis-in-the-fathead-minnow-pimephales-promelas
#11
Tyler Frankel, Lance Yonkos, Jack Frankel
The synthetic progestin levonorgestrel (LNG) is commonly utilized as a component of human oral contraceptives. LNG enters the environment as a component of wastewater treatment plant effluent, and has been measured at low ng/L concentrations in surface waters. LNG has been shown to activate fish androgen receptors, causing the physical masculinization of females, changes in reproductive behavior, and decreases in fecundity. In this present study, the effects of LNG exposure on early stage oogenesis in the fathead minnow (Pimephales promelas) was examined...
July 6, 2017: Environmental Toxicology and Chemistry
https://www.readbyqxmd.com/read/28671313/context-and-social-perceptions-of-blood-donation-in-donors-found-positive-for-human-immunodeficiency-virus-in-france
#12
Alice Duquesnoy, Bruno Danic, Aurélie Santos, Christophe Martinaud, Geneviève Woimant, Syria Laperche, Pierre Tiberghien, Marie Jauffret-Roustide, Josiane Pillonel
BACKGROUND: In France, information collected during postdonation interviews showed that a majority of human immunodeficiency virus (HIV)-infected donors were not eligible to donate as per donor selection criteria. In the interest of blood safety, this study aimed to explore the mechanisms of noncompliance with blood donor selection criteria, notably the permanent deferral of men who have sex with men (MSM). STUDY DESIGN AND METHODS: Semistructured individual interviews were conducted with 32 blood donors found positive for HIV between mid-2011 and 2014...
July 3, 2017: Transfusion
https://www.readbyqxmd.com/read/28669217/risky-sexual-behaviors-among-malay-adolescents-a-comparison-with-chinese-adolescents-in-singapore
#13
Junice Y S Ng, Mee-Lian Wong
OBJECTIVE: Malays, with majority of the individuals being Muslim, form the largest ethnic group in Southeast Asia. This region is experiencing a rising incidence of HIV infections. Due to circumcision and prohibition of sex outside marriage, being Muslim was argued to be a protective factor against sexually transmitted infections (STI) and Human Immunodeficiency Virus (HIV). However, Malay adolescents were found to be more likely to contract chlamydia and gonorrhea than non-Malay adolescents in Singapore...
July 1, 2017: Ethnicity & Health
https://www.readbyqxmd.com/read/28667755/incidence-and-risk-factors-for-human-papillomavirus-infections-in-young-female-online-daters
#14
Sharon Ma, Joshua E Stern, Qinghua Feng, James P Hughes, Stephen E Hawes, Rachel L Winer
Risk factors for incident HPV infections are undefined in young women who use internet dating Web sites. From 2010-2012 we followed 18-24-year-old female internet daters (N = 164) triannually for a mean of one year. Women collected and returned self-collected vaginal samples for HPV genotyping and health and behavior questionnaires. We used Kaplan-Meier methods to estimate incidence of clinically-relevant HPV infection (high-risk HPV, HPV-6, or HPV-11) and generalized estimating equations and Firth logistic regression to identify associated risk factors...
July 1, 2017: Journal of Medical Virology
https://www.readbyqxmd.com/read/28648991/longitudinal-pathways-from-unconventional-personal-attributes-in-the-late-20s-to-cannabis-use-prior-to-sexual-intercourse-in-the-late-30s
#15
Jung Yeon Lee, Judith S Brook, Kerstin Pahl, David W Brook
A quarter of people living with human immunodeficiency virus (HIV) infection in the United States are women. Furthermore, African American and Hispanic/Latina women continue to be disproportionately affected by HIV, compared with women of other races/ethnicities. Cannabis use prior to intercourse may be associated with increased risky sexual behaviors which are highly related to HIV. The ultimate goal of this research is to better understand the relationships between unconventional personal attributes (e.g...
May 24, 2017: Addictive Behaviors
https://www.readbyqxmd.com/read/28645226/the-fragile-spell-of-desire-a-functional-perspective-on-changes-in-sexual-desire-across-relationship-development
#16
Gurit E Birnbaum
The sexual behavioral system evolved to motivate reproductive acts by arousing sexual desire. Building on the idea that this system has also been "exploited" by evolutionary processes to promote enduring bonds between romantic partners, the present article introduces an integrative model that delineates the functional significance of sexual desire in relationship formation and maintenance. This model explains why individuals' sexual reaction to their partner is context-dependent, clarifying how changes in the nature of interdependence over the course of relationships alter the ways in which specific predictors of sexual desire tend to promote (or inhibit) desire and thereby affect relationship depth and stability...
June 1, 2017: Personality and Social Psychology Review
https://www.readbyqxmd.com/read/28644338/committee-opinion-no-706-sexual-health
#17
(no author information available yet)
Sexuality involves a broad range of expressions of intimacy and is fundamental to self-dentification, with strong cultural, biologic, and psychologic components. Obstetrician-gynecologists often are consulted by patients about sexual health and are in a unique position to open a dialogue on sexual health issues. Several obstacles to frank conversations with patients about sexual health exist, including a lack of adequate training and confidence in the topic, a perception that there are few treatment options, a lack of adequate clinical time to obtain a sexual history, patients' reluctance to initiate the conversation, and the underestimation of the prevalence of sexual dysfunction...
July 2017: Obstetrics and Gynecology
https://www.readbyqxmd.com/read/28644331/committee-opinion-no-706-summary-sexual-health
#18
(no author information available yet)
Sexuality involves a broad range of expressions of intimacy and is fundamental to self-dentification, with strong cultural, biologic, and psychologic components. Obstetrician-gynecologists often are consulted by patients about sexual health and are in a unique position to open a dialogue on sexual health issues. Several obstacles to frank conversations with patients about sexual health exist, including a lack of adequate training and confidence in the topic, a perception that there are few treatment options, a lack of adequate clinical time to obtain a sexual history, patients' reluctance to initiate the conversation, and the underestimation of the prevalence of sexual dysfunction...
July 2017: Obstetrics and Gynecology
https://www.readbyqxmd.com/read/28642689/integrating-neural-circuits-controlling-female-sexual-behavior
#19
REVIEW
Paul E Micevych, Robert L Meisel
The hypothalamus is most often associated with innate behaviors such as is hunger, thirst and sex. While the expression of these behaviors important for survival of the individual or the species is nested within the hypothalamus, the desire (i.e., motivation) for them is centered within the mesolimbic reward circuitry. In this review, we will use female sexual behavior as a model to examine the interaction of these circuits. We will examine the evidence for a hypothalamic circuit that regulates consummatory aspects of reproductive behavior, i...
2017: Frontiers in Systems Neuroscience
https://www.readbyqxmd.com/read/28634152/ensuring-inclusion-of-adolescent-key-populations-at-higher-risk-of-hiv-exposure-recommendations-for-conducting-biological-behavioral-surveillance-surveys
#20
Lisa Grazina Johnston, Justine Sass, Jeffry Acaba, Wing-Sie Cheng, Shirley Mark Prabhu
Ending acquired immune deficiency syndrome (AIDS) depends on greater efforts to reduce new human immunodeficiency virus (HIV) infections and prevent AIDS-related deaths among key populations at highest HIV risk, including males who have sex with males, sex workers, and people who inject drugs. Although adolescent key populations (AKP) are disproportionately affected by HIV, they have been largely ignored in HIV biological behavioral surveillance survey (BBSS) activities to date. This paper reviews current ethical and sampling challenges and provides suggestions to ensure AKP are included in surveillance activities, with the aim being to enhance evidence-informed, strategic, and targeted funding allocations and programs toward ending AIDS among AKP...
June 20, 2017: JMIR Public Health and Surveillance
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