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Female sexuality

Ruby Charak, Brianna M Byllesby, Michelle E Roley, Meredith A Claycomb, Tory A Durham, Jana Ross, Cherie Armour, Jon D Elhai
The aims of the present study were first to identify discrete patterns of childhood victimization experiences including crime, child maltreatment, peer/sibling victimization, sexual violence, and witnessing violence among adult trauma victims using latent class analysis; second, to examine the association between class-membership and suicidal behavior, and third to investigate the differential role of dispositional anger on the association between class-membership and suicidal behavior. We hypothesized that those classes with accumulating exposure to different types of childhood victimization (e...
October 22, 2016: Child Abuse & Neglect
Darryl T Gwynne
In a role-reversed beetle, in which sexual selection acts primarily on females, females evolved to more rapidly court and copulate after many generations of experimentally increased female sexual competition.
October 24, 2016: Current Biology: CB
Oliver R Oakley, Kee Jun Kim, Po-Ching Lin, Radwa Barakat, Joseph A Cacioppo, Zhong Li, Alex Whitaker, Kwang Chul Chung, Wenyan Mei, CheMyong Ko
17β-estradiol is a potent sex hormone synthesized primarily by gonads in females and males that regulates development and function of the reproductive system. Recent studies show that 17β-estradiol is locally synthesized in non-reproductive tissues and regulates a myriad of events, including local inflammatory responses. In this study, we report that mesenteric lymph nodes and Peyer's patches are novel sites of de novo synthesis of 17β-estradiol. These secondary lymphoid organs are located within or close to the gastrointestinal tract, contain leukocytes, and function at the forefront of immune surveillance...
October 25, 2016: Endocrinology
H Bayram, A Sayadi, J Goenaga, E Immonen, G Arnqvist
The seed beetle Callosobruchus maculatus is a significant agricultural pest and increasingly studied model of sexual conflict. Males possess genital spines that increase the transfer of seminal fluid proteins (SFPs) into the female body. As SFPs alter female behaviour and physiology, they are likely to modulate reproduction and sexual conflict in this species. Here, we identified SFPs using proteomics combined with a de novo transcriptome. A prior 2D-sodium dodecyl sulphate polyacrylamide gel electrophoresis analysis identified male accessory gland protein spots that were probably transferred to the female at mating...
October 24, 2016: Insect Molecular Biology
W K Chiu, W C Lam, N H Chu, C Km Mok, W K Tung, F Yl Leung, S M Ting
INTRODUCTION: Rainlily, the first one-stop crisis centre in Hong Kong, was set up in 2000 to protect female victims of sexual violence. This study aimed to analyse the characteristics of sexual assault cases and victims who presented to two hospitals in Hong Kong. The data are invaluable for health care professionals and policymakers to improve service provision to these victims. METHODS: This retrospective analysis of hospital records was conducted in two acute hospitals under the Hospital Authority in Hong Kong...
October 24, 2016: Hong Kong Medical Journal, Xianggang Yi Xue za Zhi
Eungu Kang, Ja Hyang Cho, Jin-Ho Choi, Han-Wook Yoo
PURPOSE: This study was performed to investigate the etiology, clinical features, and outcomes of patients with gonadotropin-independent precocious puberty (GIPP). METHODS: The study included 16 patients (14 female and 2 male patients) who manifested secondary sexual characteristics, elevated sex hormones, or adrenal androgens with prepubertal luteinizing hormone levels after gonadotropin releasing hormone stimulation diagnosed between May 1994 and December 2015...
September 2016: Annals of Pediatric Endocrinology & Metabolism
Richard M Hinds, Michael B Gottschalk, Eitan Melamed, John T Capo, S Steven Yang
Background An accessory slip arising from the extensor carpi ulnaris (ECU) tendon that inserts on the fifth metacarpal bone has been identified. We describe the frequency of this accessory slip arising from the ECU tendon and provide both qualitative and quantitative description of the slip via cadaveric examination. Methods Fifty (28 males and 22 females) cadaveric upper extremity specimens were examined after loupe-aided dissection of the dorsoulnar wrist and hand with identification of the ECU tendon...
November 2016: Journal of Wrist Surgery
Michael J Wade, Devin M Drown
We use population genetic models to investigate the cooperative and conflicting synergistic fitness effects between genes from the nucleus and the mitochondrion. By varying fitness parameters, we examine the scope for conflict relative to cooperation among genomes and the utility of the "gene's eye view" analytical approach, which is based on the marginal average fitness of specific alleles. Because sexual conflict can maintain polymorphism of mitochondrial haplotypes, we can explore two types of evolutionary conflict (genomic and sexual) with one epistatic model...
September 2016: Ecology and Evolution
Jani Nöthling, Sharain Suliman, Lindi Martin, Candice Simmons, Soraya Seedat
South African adolescents are exposed to high levels of violence and trauma, including community violence, abuse, and neglect. Violence and trauma are associated with negative mental health outcomes, including posttraumatic stress disorder (PTSD) and depression. Demographic characteristics, additional exposure to trauma, community violence, and types of childhood abuse and neglect may place adolescents at greater risk of developing PTSD. This study aimed to first assess the weighted contribution of demographic factors, trauma load, community violence, and types of abuse and neglect in predicting PTSD symptom severity...
October 24, 2016: Journal of Interpersonal Violence
Don C Des Jarlais, Kamyar Arasteh, Jonathan Feelemyer, Courtney McKnight, David M Barnes, Susan Tross, David C Perlman, Aimee N C Campbell, Hannah L F Cooper, Holly Hagan
OBJECTIVES: Transitioning from injecting to non-injecting routes of drug administration can provide important individual and community health benefits. We assessed characteristics of persons who had ceased injecting while continuing to use heroin and/or cocaine in New York City. METHODS: We recruited subjects entering Mount Sinai Beth Israel detoxification and methadone maintenance programs between 2011 and 2015. Demographic information, drug use histories, sexual behaviors, and "reverse transitions" from injecting to non-injecting drug use were assessed in structured face-to-face interviews...
December 2016: Journal of Substance Abuse Treatment
Michael M Kasumovic, Zhiliang Chen, Marc R Wilkins
BACKGROUND: Ecological and evolutionary model organisms have provided extensive insight into the ecological triggers, adaptive benefits, and evolution of life-history driven developmental plasticity. Despite this, we still have a poor understanding of the underlying genetic changes that occur during shifts towards different developmental trajectories. The goal of this study is to determine whether we can identify underlying gene expression patterns that can describe the different life-history trajectories individuals follow in response to social cues of competition...
October 24, 2016: BMC Genomics
Rafael Monge-Rojas, Tamara Fuster-Baraona, Carlos Garita-Arce, Marta Sánchez-López, Uriyoán Colon-Ramos, Vanessa Smith-Castro
BACKGROUND: In Latin America, more than 80% of adolescent girls are physically inactive. Inactivity may be reinforced by female stereotypes and objectification in the Latin American sociocultural context. METHODS: We examined the influence of objectification on the adoption of an active lifestyle among 192 adolescents (14 -17 y/old) from urban and rural areas in Costa Rica. Analyses of 48 focus-groups sessions were grounded in Objectification Theory. RESULTS: Vigorous exercises were gender-typed as masculine while girls had to maintain an aesthetic appearance at all times...
October 24, 2016: Journal of Physical Activity & Health
Elizabeth J Geller, Emma Babb, Andrea G Nackley, Denniz Zolnoun
STUDY OBJECTIVE: Our aim was to assess incidence and risk factors for pelvic pain after pelvic mesh implantation. DESIGN: This is a retrospective study of women with no baseline pelvic pain who underwent surgery with mesh implant for the treatment of prolapse and/or incontinence at least one year prior to study period. DESIGN: Classification: Canadian Task Force Level II-2 SETTING: Single university hospital PATIENTS: Women who have undergone surgery with pelvic mesh implant for treatment of pelvic floor disorders including prolapse and incontinence INTERVENTIONS: Telephone interviews to assess pain, sexual function and general health...
October 20, 2016: Journal of Minimally Invasive Gynecology
Quentin C Karpilow, Adam T Thomas
BACKGROUND: Several recent studies have highlighted the need for greater use of long-acting contraception. The most influential of these studies is the Contraceptive CHOICE Project, which was credited with substantially reducing participants' pregnancy risk by increasing their use of long-acting methods such as intrauterine devices and subdermal implants. However, because participants' rates of nonuse and condom use fell to zero at the outset of the intervention, it is possible that sizeable pregnancy reductions could still have been achieved if enrollees had chosen shorter-acting female-controlled methods such as oral contraception...
October 20, 2016: American Journal of Obstetrics and Gynecology
Meredith McGinley, Kathleen M Rospenda, Li Liu, Judith A Richman
Collegiate extracurricular activities, despite their benefits, may place students at an increased risk for experiencing harassment. This study utilizes multiple waves of data from an online longitudinal survey to examine how participation in college activities (intramural sports, fraternities/sororities, school clubs) relates to experiences of sexual and generalized harassment and outcomes (psychological distress, heavy alcohol use) among undergraduates (N = 1852, 58.6% female, 57.4% White) in the Midwestern United States...
October 20, 2016: Journal of Adolescence
Monique Jenkins, Carol F Roye, Keville Frederickson
PURPOSE: The aim of this study was to gain a deeper understanding of the lived experiences of underserved minority sexually active teenaged girls' successful avoidance of unwanted pregnancy. DESIGN AND METHOD: Merleau-Ponty's methodology and van Manen's method of doing phenomenological research guided and facilitated the process of the study. 7 participants were eligible and all of them were interviewed for this study. RESULTS: Six main themes were identified: sense of emotional safety; sense of being free from a potential pregnancy; feeling supported by family and friends; connections built on trust and communication; regard for self through self-esteem and self-confidence; and sense of having life goals...
October 19, 2016: Journal of Pediatric Nursing
Barbara Krahé, Anja Berger
This study aimed to examine the pathways from child sexual abuse to sexual assault victimization and perpetration in adolescence and early adulthood, considering risky sexual behavior and lowered sexual self-esteem as mediator variables. In a two-wave longitudinal study with 2251 college students in Germany, male and female participants provided reports of sexual aggression victimization and perpetration since age 14 (T1) and again a year later (T2), covering the last 12 months. In addition, child sexual abuse (CSA; before the age of 14), risky sexual behavior, and sexual self-esteem were assessed at T1, and risky sexual behavior and sexual-self-esteem were assessed again at T2...
October 19, 2016: Child Abuse & Neglect
M P Machado, I Matos, A R Grosso, M Schartl, M M Coelho
Sex determination is a highly variable process that utilizes many different mechanisms to initiate the cascade of differentiation processes. The molecular pathways controlling sexual development are less conserved than previously assumed, and appear to require active maintenance in some species; indeed, the developmental decision of gonad phenotype in gonochoristic species is not fixed at an early developmental stage. Much of the knowledge about sex determination mechanisms was derived from research on gonochoristic, non-seasonal breeders...
October 22, 2016: Molecular Reproduction and Development
Daniel Shane Wright, Nicolle Demandt, Jeroen T Alkema, Ole Seehausen, Ton G G Groothuis, Martine E Maan
Local adaptation can be a potent force in speciation, with environmental heterogeneity leading to niche specialization and population divergence. However, local adaption often requires non-random mating in order to generate reproductive isolation. Population divergence in sensory properties can be particularly consequential in speciation, affecting both ecological adaptation and sexual communication. Pundamilia pundamila and Pundamilia nyererei are two closely related African cichlid species that differ in male coloration, blue vs...
October 22, 2016: Journal of Evolutionary Biology
Sofoklis Panteleimonitis, Jamil Ahmed, Meghana Ramachandra, Muhammad Farooq, Mick Harper, Amjad Parvaiz
PURPOSE: Urological and sexual dysfunction are recognised risks of rectal cancer surgery; however, there is limited evidence regarding urogenital function comparing robotic to laparoscopic techniques. The aim of this study was to assess the urogenital functional outcomes of patients undergoing laparoscopic and robotic rectal cancer surgery. METHODS: Urological and sexual functions were assessed using gender-specific validated standardised questionnaires. Questionnaires were sent a minimum of 6 months after surgery, and patients were asked to report their urogenital function pre- and post-operatively, allowing changes in urogenital function to be identified...
October 21, 2016: International Journal of Colorectal Disease
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