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Sexual behavior in humans

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https://www.readbyqxmd.com/read/28325880/balancing-selection-maintains-polymorphisms-at-neurogenetic-loci-in-field-experiments
#1
Eija Lonn, Esa Koskela, Tapio Mappes, Mikael Mokkonen, Angela M Sims, Phillip C Watts
Most variation in behavior has a genetic basis, but the processes determining the level of diversity at behavioral loci are largely unknown for natural populations. Expression of arginine vasopressin receptor 1a (Avpr1a) and oxytocin receptor (Oxtr) in specific regions of the brain regulates diverse social and reproductive behaviors in mammals, including humans. That these genes have important fitness consequences and that natural populations contain extensive diversity at these loci implies the action of balancing selection...
March 21, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28300337/parents-knowledge-attitudes-behaviors-and-barriers-to-promoting-condom-use-among-their-adolescent-sons
#2
Worawan Tipwareerom, Linda Weglicki
Human immunodeficiency virus (HIV) is increasing in Thai youth. Consequently, a school-based National Condom Strategy program was launched in 2015 to reduce the rate of HIV and sexually transmitted infections. We conducted in-depth interviews of 31 parents/adoptive guardians of high-school age Thai boys to explore parents' knowledge, attitudes, behaviors, and barriers to promoting condom use and its role in preventing HIV/sexually transmitted infections. A descriptive phenomenological approach and thematic analysis was used...
March 16, 2017: Nursing & Health Sciences
https://www.readbyqxmd.com/read/28295469/assessing-new-peptides-that-may-be-involved-in-the-physiological-regulation-of-the-gonadal-axis-in-humans-gonadotropin-inhibitory-hormone
#3
Peter Y Liu
The hypothalamo-pituitary-testicular (HPT) and hypothalamo-pituitary-ovarian (HPO) axes are integrated networks that regulate androgenization or estrogenization (including embryonic, infantile, pubertal and adult sexual maturation), male or female sexual behavior, and spermatogenesis or ovulation, respectively. Dysregulation of the HPT axis, for example, results in pubertal delay, eunuchism, impaired spermatogenesis, and reduced systemic androgen exposure; and may also contribute to some of the features of male aging, impair recovery from protracted critical illness, and induce visceral adiposity, sarcopenia, osteopenia, and insulin resistance...
March 13, 2017: Clinical Endocrinology
https://www.readbyqxmd.com/read/28292458/treating-youths-in-the-juvenile-justice-system
#4
REVIEW
Ann L Sattler
Adolescents involved with the juvenile justice system have higher rates of risky sexual behaviors, resulting in high rates of sexually transmitted infections and increased risk of human immunodeficiency virus, early or complicated pregnancy, and parenting issues. Comorbid substance abuse, gang association, mental health issues, and history of having been abused as children result in further elevated rates. Girls and lesbian, gay, bisexual, and transgender youths represent growing subpopulations with special risks...
April 2017: Pediatric Clinics of North America
https://www.readbyqxmd.com/read/28292201/performing-piety-in-sexual-health-research-gender-health-and-evangelical-christianities-in-a-mexican-human-papillomavirus-hpv-study
#5
Emily Wentzell
Recent research suggests that health surveillance experiences like clinical trial participation might have unanticipated social consequences. I investigate how evangelical Christians participating in longitudinal, observational sexual health research incorporate that long-term medical surveillance into their religious practice. This exploratory research focuses on Mexican Cristianos' participation in the Cuernavaca arm of the multinational 'Human Papillomavirus in Men' ('HIM') study, which tested men for the common and usually asymptomatic sexually transmitted infection human papillomavirus (HPV) over time...
March 15, 2017: Anthropology & Medicine
https://www.readbyqxmd.com/read/28291563/factors-associated-with-aggressive-behavior-between-residents-and-staff-in-nursing-homes
#6
Karin Stutte, Sabine Hahn, Katharina Fierz, Franziska Zúñiga
The aim of this secondary data analysis of the cross-sectional Swiss Nursing Homes Human Resources Project (SHURP) study was to describe the prevalence of residents' verbal, physical and sexual aggression toward care workers in Swiss nursing homes and to explore their association with context and care worker factors. The study's sample incorporated data from 155 randomly selected nursing homes, including 402 units. Among care workers (n = 3919), 66% reported experiencing verbal, 42% physical and 15% sexual aggression...
March 10, 2017: Geriatric Nursing
https://www.readbyqxmd.com/read/28282651/faster-and-riskier-online-context-of-sex-seeking-among-men-who-have-sex-with-men-in-china
#7
Bolin Cao, Chuncheng Liu, Gabriella Stein, Weiming Tang, John Best, Ye Zhang, Bin Yang, Shujie Huang, Chongyi Wei, Joseph D Tucker
BACKGROUND: Many men who have sex with men (MSM) seek sex partners online, creating barriers and opportunities for human immunodeficiency virus prevention. The purpose of this study was to examine the characteristics of MSM and the risks associated with seeking sex through websites, gay apps, and both platforms in China. METHODS: Data were collected through a cross-sectional online survey from September through October 2014 from 3 large gay Web portals. Sociodemographic information, sexual behaviors, and online sex seeking behaviors were measured...
April 2017: Sexually Transmitted Diseases
https://www.readbyqxmd.com/read/28277975/weaponized-sex-defensive-pseudo-erotic-aggression-in-the-service-of-safety
#8
Richard P Kluft
Problematic sexual behaviors are frequently encountered in the treatment of patients suffering Dissociative Identity Disorder and related forms of dissociative disorders. These may include unfortunate patterns of ready acquiescence or submission to overtly or potentially aggressive or sexual approaches/encounters, subtle and/or overt seductive signaling and behaviors, and even overt sexually provocative patterns of verbalizations and actions. This paper discusses the possibility that in some instances, sexual behavior has become weaponized; that is, deployed in circumstances under which assertiveness and/or aggression or other self-protective measures might be expected, probably because such behaviors were not within the range of the possible or were not understood as potentially successful for some victims of trauma...
March 1, 2017: Journal of Trauma & Dissociation
https://www.readbyqxmd.com/read/28277236/-we-ve-been-together-we-don-t-have-it-we-re-fine-how-relationship-status-impacts-human-papillomavirus-vaccine-behavior-among-young-adult-women
#9
Erika L Thompson, Cheryl A Vamos, Diane M Straub, William M Sappenfield, Ellen M Daley
BACKGROUND: Vaccination against the human papillomavirus (HPV) has the potential to significantly reduce morbidity and mortality associated with genital warts and HPV-related cancers. However, HPV vaccination rates continue to be suboptimal among the "catch-up" population of 18- to 26-year-old women. One consistent risk factor for nonvaccination is being in a relationship. This study aimed to understand how relationship status and vaccination status impact risk perceptions and perceived need for the HPV vaccine among young adult women...
October 27, 2016: Women's Health Issues: Official Publication of the Jacobs Institute of Women's Health
https://www.readbyqxmd.com/read/28271667/consequences-of-early-adverse-rearing-experience-eare-on-development-insights-from-non-human-primate-studies
#10
REVIEW
Bo Zhang
Early rearing experiences are important in one's whole life, whereas early adverse rearing experience(EARE) is usually related to various physical and mental disorders in later life. Although there were many studies on human and animals, regarding the effect of EARE on brain development, neuroendocrine systems, as well as the consequential mental disorders and behavioral abnormalities, the underlying mechanisms remain unclear. Due to the close genetic relationship and similarity in social organizations with humans, non-human primate(NHP) studies were performed for over 60 years...
January 18, 2017: Zool Res
https://www.readbyqxmd.com/read/28271500/outcomes-of-hpv-related-nasal-squamous-cell-carcinoma
#11
Naweed Chowdhury, Sameer Alvi, Kyle Kimura, Ossama Tawfik, Pradip Manna, David Beahm, Ann Robinson, Spencer Kerley, Larry Hoover
BACKGROUND: Human papilloma virus (HPV) infection has been shown to play an integral role in the development and prognosis of various head and neck cancers. Generational changes in sexual behavior may have led to an increased incidence of positivity in recent years. HPV positivity in both benign and malignant lesions of the sinonasal cavities has been shown in previous studies (estimates range from 20%-30% for malignancy). We intend to investigate if HPV positivity affected survival outcomes in our patient cohort...
March 8, 2017: Laryngoscope
https://www.readbyqxmd.com/read/28264795/detailed-knowledge-about-hiv-epidemiology-and-transmission-dynamics-and-their-associations-with-preventive-and-risk-behaviors-among-gay-bisexual-and-other-men-who-have-sex-with-men-in-the-united-states
#12
Akshay Sharma, Stephen P Sullivan, Rob B Stephenson
BACKGROUND: Gay, bisexual, and other men who have sex with men (GBMSM) in the United States remain disproportionately affected by human immunodeficiency virus (HIV). Yet their testing frequency is suboptimal and condomless anal sex (CAS) is increasing. Behavioral theories posit that information about HIV is a pivotal construct in individual risk reduction. However, measurements of knowledge have traditionally focused on ever hearing about HIV and being aware of the most common routes of spread...
March 6, 2017: JMIR Public Health and Surveillance
https://www.readbyqxmd.com/read/28257663/molecular-pathways-related-to-the-longevity-promotion-and-cognitive-improvement-of-cistanche-tubulosa-in-drosophila
#13
Wei-Yong Lin, Chun Yao, Jack Cheng, Shung-Te Kao, Fuu-Jen Tsai, Hsin-Ping Liu
BACKGROUND: The aging process, including physical dysfunction and age-related memory impairment (AMI), are considered to be correlated with cumulative oxidative damages and insulin/IGF-1 signaling pathway. PURPOSE: The present study was to elucidate the in vivo effects on delaying aging and ameliorating AMI and underlying molecular mechanisms of Cistanche tubulosa (CT), a herb used in traditional Chinese medicine to improve sexual function and treat kidney dysfunction...
March 15, 2017: Phytomedicine: International Journal of Phytotherapy and Phytopharmacology
https://www.readbyqxmd.com/read/28257539/sexually-transmitted-infection-risk-among-women-is-not-fully-explained-by-partner-numbers
#14
Christina A Muzny, Hanne S Harbison, Erika L Austin, Jane R Schwebke, Barbara Van Der Pol, Edward W Hook
OBJECTIVES: Increased sexual partner numbers may contribute to sexually transmitted infection (STI) risk for some but not all women. This study compared women reporting having four or more partners during the preceding year (multiple partnership group) with those reporting having one partner (single partnership group) with regard to sexually risky behaviors and other modifiable predictors of STI risk. We also compared the prevalence of bacterial vaginosis, trichomoniasis, chlamydia, gonorrhea, syphilis, herpes simplex virus type 2, and human immunodeficiency virus among groups...
March 2017: Southern Medical Journal
https://www.readbyqxmd.com/read/28255426/anal-intraepithelial-neoplasia-a-review-of-diagnosis-and-management
#15
REVIEW
Joseph R Roberts, Lacey L Siekas, Andrew M Kaz
Anal intraepithelial neoplasia (AIN) is a premalignant lesion of the anal mucosa that is a precursor to anal cancer. Although anal cancer is relatively uncommon, rates of this malignancy are steadily rising in the United States, and among certain high risk populations the incidence of anal cancer may exceed that of colon cancer. Risk factors for AIN and anal cancer consist of clinical factors and behaviors that are associated with the acquisition and persistence of human papilloma virus (HPV) infection. The strongest HPV-associated risk factors are HIV infection, receptive anal intercourse, and high risk sexual behavior...
February 15, 2017: World Journal of Gastrointestinal Oncology
https://www.readbyqxmd.com/read/28250176/rats-concatenate-22-khz-and-50-khz-calls-into-a-single-utterance
#16
Christine Hernandez, Mark Sabin, Tobias Riede
Traditionally, the ultrasonic vocal repertoire of rats is differentiated into 22 kHz and 50 kHz calls, two categories that contain multiple different call types. Although both categories have different functions, they are sometimes produced in the same behavioral context. Here, we investigated the peripheral mechanisms that generate sequences of calls from both categories. Male rats, either sexually experienced or naïve, were exposed to an estrous female. The majority of sexually naïve male rats produced 22 kHz and 50 kHz calls on their first encounter with a female...
March 1, 2017: Journal of Experimental Biology
https://www.readbyqxmd.com/read/28248528/women-s-health-care-the-experiences-and-behaviors-of-rural-and-urban-lesbians-in-the-usa
#17
K Nikki Barefoot, Jacob C Warren, K Bryant Smalley
INTRODUCTION: Previous research has consistently demonstrated that, in comparison to their cisgender heterosexual counterparts, lesbians face a multitude of women's healthcare-related disparities. However, very little research has been conducted that takes an intersectionality approach to examining the potential influences of rural-urban location on the health-related needs and experiences of lesbians. The purpose of this study was to quantitatively compare rural and urban lesbians' access to women's health care, experiences with women's healthcare providers (WHCPs), and preventive behavior using a large, diverse sample of lesbians from across the USA...
January 2017: Rural and Remote Health
https://www.readbyqxmd.com/read/28245234/hpv-vaccine-knowledge-and-acceptability-among-peruvian-men-who-have-sex-with-men-and-transgender-women-a-pilot-qualitative-study
#18
Jerome T Galea, Emmi Monsour, César R Nureña, Magaly M Blas, Brandon Brown
PURPOSE: Human papillomavirus (HPV) is the most common sexually transmitted infection globally and is responsible for a variety of cancers in men and women. An effective HPV vaccine licensed for use in girls and boys has been indicated for-but is not widely implemented in-men who have sex with men (MSM). Limited data are available for transgender women (TW). We explored the social and behavioral aspects related to HPV vaccine uptake and participation in HPV vaccine studies among Peruvian MSM and TW...
2017: PloS One
https://www.readbyqxmd.com/read/28244954/increased-hiv-1-superinfection-risk-in-carriers-of-specific-human-leukocyte-antigen-alleles
#19
Jouni Vesa, Antoine Chaillon, Gabriel A Wagner, Christy M Anderson, Douglas D Richman, Davey M Smith, Susan J Little
OBJECTIVE: To characterize the demographic, behavioral, clinical, and immunogenetic determinants of HIV-1 superinfection (SI) in a high-risk cohort of men who have sex with men (MSM). DESIGN: Retrospective cohort study of prospectively followed MSM. METHODS: Ninety-eight MSM with acute or early HIV-1 monoinfection (MI) were followed for a median of 15.6 months. Demographic and human leukocyte antigen (HLA) genotype data were collected at enrollment...
February 27, 2017: AIDS
https://www.readbyqxmd.com/read/28243936/the-effects-of-housing-status-stability-and-the-social-contexts-of-housing-on-drug-and-sexual-risk-behaviors
#20
Julia Dickson-Gomez, Timothy McAuliffe, Katherine Quinn
Research on the relationship between housing instability and HIV risk has often focused on two different conceptions of stability. In one conceptualization, housing stability is defined according to physical location with homeless or unstably housed individuals defined as those who reside in places not meant for human habitation or in emergency shelters. The other conceptualization has defined housing stability as individuals' degree of transience, often operationalized as the number of moves or evictions a person has had within a specified amount of time...
February 27, 2017: AIDS and Behavior
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