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https://www.readbyqxmd.com/read/29352679/inter-sexual-habitat-and-isotopic-niche-segregation-of-the-endangered-monteiro-s-storm-petrel-during-breeding
#1
V H Paiva, J A Ramos, C Nava, V Neves, J Bried, M Magalhães
At-sea distribution and trophic ecology of small seabird species (i.e.<100 g) is far less known when compared to their larger relatives. We studied the habitat use (spatial ecology) and isotopic niches (trophic ecology) of the endangered Monteiro's storm-petrel Hydrobates monteiroi during the incubation and chick-rearing periods of 2013. There was a sexual foraging segregation of Monteiro's storm-petrels during the breeding period (tracking data) but also during the non-breeding stage (stable isotope analysis)...
December 30, 2017: Zoology: Analysis of Complex Systems, ZACS
https://www.readbyqxmd.com/read/29352400/project-date-smart-a-dating-violence-dv-and-sexual-risk-prevention-program-for-adolescent-girls-with-prior-dv-exposure
#2
Christie J Rizzo, Meredith Joppa, David Barker, Charlene Collibee, Caron Zlotnick, Larry K Brown
This study assessed the initial feasibility, acceptability, and efficacy of an intervention aimed at reducing dating violence and sexual risk behavior in a sample of adolescent girls (ages 14-17) with prior exposure to physical dating violence (DV). One hundred and nine girls were randomly assigned to Date SMART (Skills to Manage Aggression in Relationships for Teens) or a Knowledge-only (KO) comparison group. Both intervention arms consisted of six, weekly 2-h sessions and one "booster" session 6 weeks later...
January 20, 2018: Prevention Science: the Official Journal of the Society for Prevention Research
https://www.readbyqxmd.com/read/29352271/sex-disparity-in-cancer-roles-of-micrornas-and-related-functional-players
#3
REVIEW
Alessandra Carè, Maria Bellenghi, Paola Matarrese, Lucia Gabriele, Stefano Salvioli, Walter Malorni
A sexual dimorphism at the cellular level has been suggested to play a role in cancer onset and progression. In particular, very recent studies have unraveled striking differences between cells carrying XX or XY chromosomes in terms of response to stressful stimuli, indicating the presence of genetic and epigenetic differences determining sex-specific metabolic or phenotypic traits. Although this field of investigation is still in its infancy, available data suggest a key role of sexual chromosomes in determining cell life or death...
January 19, 2018: Cell Death and Differentiation
https://www.readbyqxmd.com/read/29352256/time-management-in-a-co-housed-social-rodent-species-arvicanthis-niloticus
#4
Alexandra Castillo-Ruiz, Premananda Indic, William J Schwartz
Sociality has beneficial effects on fitness, and timing the activities of animals may be critical. Social cues could influence daily rhythmic activities via direct effects on the circadian clock or on processes that bypass it (masking), but these possibilities remain incompletely addressed. We investigated the effects of social cues on the circadian body temperature (Tb) rhythms in pairs of co-housed and isolated grass rats, Arvicanthis niloticus (a social species), in constant darkness (DD). Cohabitation did not induce synchronization of circadian Tb rhythms...
January 19, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29351809/axonal-transport-in-a-peripheral-diabetic-neuropathy-model-sex-dimorphic-features
#5
Marzia Pesaresi, Silvia Giatti, Roberto Spezzano, Simone Romano, Silvia Diviccaro, Tiziana Borsello, Nico Mitro, Donatella Caruso, Luis Miguel Garcia-Segura, Roberto Cosimo Melcangi
BACKGROUND: Disruption of axonal transport plays a pivotal role in diabetic neuropathy. A sex-dimorphism exists in the incidence and symptomatology of diabetic neuropathy; however, no studies so far have addressed sex differences in axonal motor proteins expression in early diabetes as well as the possible involvement of neuroactive steroids. Interestingly, recent data point to a role for mitochondria in the sexual dimorphism of neurodegenerative diseases. Mitochondria have a fundamental role in axonal transport by producing the motors' energy source, ATP...
January 19, 2018: Biology of Sex Differences
https://www.readbyqxmd.com/read/29350712/vaccination-for-human-papillomavirus-immunization-practices-in-the-u-s-military%C3%A2
#6
Jennifer J Buechel
Human papillomavirus (HPV) is the most common sexually transmitted infection and is a leading etiology for cancer. The Advisory Committee on Immunization Practices (ACIP) recommends routine vaccination of males and females aged 11-26 years. Studies suggest that U.S. military service members have higher HPV incidence rates and lower vaccination rates compared to the national average. Although the U.S. military enforces many recommended vaccines, the HPV vaccine fails to make the list. 
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February 1, 2018: Clinical Journal of Oncology Nursing
https://www.readbyqxmd.com/read/29350346/chemical-characterization-of-young-virgin-queens-and-mated-egg-laying-queens-in-the-ant-cataglyphis-cursor-random-forest-classification-analysis-for-multivariate-datasets
#7
Thibaud Monnin, Florence Helft, Chloé Leroy, Patrizia d'Ettorre, Claudie Doums
Social insects are well known for their extremely rich chemical communication, yet their sex pheromones remain poorly studied. In the thermophilic and thelytokous ant, Cataglyphis cursor, we analyzed the cuticular hydrocarbon profiles and Dufour's gland contents of queens of different age and reproductive status (sexually immature gynes, sexually mature gynes, mated and egg-laying queens) and of workers. Random forest classification analyses showed that the four groups of individuals were well separated for both chemical sources, except mature gynes that clustered with queens for cuticular hydrocarbons and with immature gynes for Dufour's gland secretions...
January 19, 2018: Journal of Chemical Ecology
https://www.readbyqxmd.com/read/29349764/sexual-function-post-breast-cancer
#8
Lauren Streicher, James A Simon
The consequences of estrogen deprivation and therapeutic interventions such as radiation, chemotherapy and surgery have a significant negative impact on libido, sexual arousal, orgasmic function and the ability to have pleasurable intercourse. Evaluation and treatment of female sexual dysfunction is a significant unmet need in the breast cancer survivor in spite of the availability of safe and effective treatments.
2018: Cancer Treatment and Research
https://www.readbyqxmd.com/read/29349207/gender-career-divide-and-women-s-disadvantage-in-depressive-symptoms-and-physical-limitations-in-france
#9
Emmanuelle Cambois, Clémentine Garrouste, Ariane Pailhé
This study investigated the relationship between women's disadvantage in mental health and physical functioning and gender differences in career backgrounds. Sexual division of labor persists and key career characteristics are overrepresented in women: low-skilled first job, downward occupational trajectory, interruptions. These interrelated characteristics are usually linked to poor health. Their overrepresentation in women may be related to the female-male health gap; however, it may not if overrepresentation transposed into substantially weaker associations with poor health outcomes...
December 2017: SSM—Population Health
https://www.readbyqxmd.com/read/29348568/medial-preoptic-area-in-mice-is-capable-of-mediating-sexually-dimorphic-behaviors-regardless-of-gender
#10
Yi-Chao Wei, Shao-Ran Wang, Zhuo-Lei Jiao, Wen Zhang, Jun-Kai Lin, Xing-Yu Li, Shuai-Shuai Li, Xin Zhang, Xiao-Hong Xu
The medial preoptic area (mPOA) differs between males and females in nearly all species examined to date, including humans. Here, using fiber photometry recordings of Ca2+ transients in freely behaving mice, we show ramping activities in the mPOA that precede and correlate with sexually dimorphic display of male-typical mounting and female-typical pup retrieval. Strikingly, optogenetic stimulation of the mPOA elicits similar display of mounting and pup retrieval in both males and females. Furthermore, by means of recording, ablation, optogenetic activation, and inhibition, we show mPOA neurons expressing estrogen receptor alpha (Esr1) are essential for the sexually biased display of these behaviors...
January 18, 2018: Nature Communications
https://www.readbyqxmd.com/read/29346618/evidence-of-adaptive-evolution-and-relaxed-constraints-in-sex-biased-genes-of-south-american-and-west-indies-fruit-flies-diptera-tephritidae
#11
Carlos Congrains, Emeline B Campanini, Felipe R Torres, Víctor B Rezende, Aline M Nakamura, Janaína L de Oliveira, André L A Lima, Samira Chahad-Ehlers, Iderval S Sobrinho, Reinaldo A de Brito
Several studies have demonstrated that genes differentially expressed between sexes (sex-biased genes) tend to evolve faster than unbiased genes, particularly in males. The reason for this accelerated evolution is not clear, but several explanations have involved adaptive and non-adaptive mechanisms. Furthermore, the differences of sex-biased expression patterns of closely related species are also little explored out of Drosophila. To address the evolutionary processes involved with sex-biased expression in species with incipient differentiation, we analyzed male and female transcriptomes of Anastrepha fraterculus and A...
January 15, 2018: Genome Biology and Evolution
https://www.readbyqxmd.com/read/29346516/deletion-of-nrip1-extends-female-mice-longevity-increases-autophagy-and-delays-cell-senescence
#12
Jinyu Wang, Xundi Chen, Jared Osland, D Skyler Gerber, Chao Luan, Kristin Delfino, Leslie Goodwin, Rong Yuan
Using age of female sexual maturation as a biomarker, we previously identified nuclear receptor interacting protein 1 (Nrip1) as a candidate gene that may regulate aging and longevity. In the current report, we found that the deletion of Nrip1 can significantly extend longevity of female mice (log rank test, P=0.0004). We also found that Nrip1 expression is altered differently in various tissues during aging and under diet restriction. Remarkably, Nrip1 expression is elevated with aging in visceral white adipose tissue (WAT), but significantly reduced after four months of diet restriction...
January 13, 2018: Journals of Gerontology. Series A, Biological Sciences and Medical Sciences
https://www.readbyqxmd.com/read/29346424/higher-sequence-diversity-in-the-vaginal-tract-than-in-blood-at-early-hiv-1-infection
#13
Katja Klein, Gabrielle Nickel, Immaculate Nankya, Fred Kyeyune, Korey Demers, Emmanuel Ndashimye, Cynthia Kwok, Pai-Lien Chen, Sandra Rwambuya, Art Poon, Marshall Munjoma, Tsungai Chipato, Josaphat Byamugisha, Peter Mugyenyi, Robert A Salata, Charles S Morrison, Eric J Arts
In the majority of cases, human immunodeficiency virus type 1 (HIV-1) infection is transmitted through sexual intercourse. A single founder virus in the blood of the newly infected donor emerges from a genetic bottleneck, while in rarer instances multiple viruses are responsible for systemic infection. We sought to characterize the sequence diversity at early infection, between two distinct anatomical sites; the female reproductive tract vs. systemic compartment. We recruited 72 women from Uganda and Zimbabwe within seven months of HIV-1 infection...
January 2018: PLoS Pathogens
https://www.readbyqxmd.com/read/29346375/how-do-we-reach-the-girls-and-women-who-are-the-hardest-to-reach-inequitable-opportunities-in-reproductive-and-maternal-health-care-services-in-armed-conflict-and-forced-displacement-settings-in-colombia
#14
Juan Carlos Rivillas, Raul Devia Rodriguez, Gloria Song, Andréanne Martel
OBJECTIVES: This paper assesses inequalities in access to reproductive and maternal health services among females affected by forced displacement and sexual and gender-based violence in conflict settings in Colombia. This was accomplished through the following approaches: first, we assessed the gaps and gradients in three selected reproductive and maternal health care services. Second, we analyzed the patterns of inequalities in reproductive and maternal health care services and changes over time...
2018: PloS One
https://www.readbyqxmd.com/read/29346307/knowledge-and-attitudes-of-general-practitioners-and-sexual-health-care-professionals-regarding-human-papillomavirus-vaccination-for-young-men-who-have-sex-with-men
#15
Samuel W D Merriel, Carrie Flannagan, Joanna M Kesten, Gilla K Shapiro, Tom Nadarzynski, Gillian Prue
Men who have sex with men (MSM) may be at higher risk for human papillomavirus (HPV)-associated cancers. Healthcare professionals' recommendations can affect HPV vaccination uptake. Since 2016, MSM up to 45 years have been offered HPV vaccination at genitourinary medicine (GUM) clinics in a pilot programme, and primary care was recommended as a setting for opportunistic vaccination. Vaccination prior to potential exposure to the virus (i.e., sexual debut) is likely to be most efficacious, therefore a focus on young MSM (YMSM) is important...
January 18, 2018: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/29345506/effects-of-physical-and-depressive-symptoms-on-the-sexual-life-of-turkish-women-in-the-climacteric-period
#16
E Yanikkerem, A Göker, Ö Çakır, N Esmeray
OBJECTIVE: To assess the effects of physical and depressive symptoms on the sexual life of women in the climacteric period. METHODS: This study was conducted with 572 women at a university hospital. The Beck Depression Inventory (BDI), Menopause Rating Scale (MRS) and Female Sexual Function Index (FSFI) were used to evaluate depressive symptoms, intensity of menopausal symptoms and sexual function. RESULTS: Sexual dysfunction and depressive symptoms were determined in 86...
January 18, 2018: Climacteric: the Journal of the International Menopause Society
https://www.readbyqxmd.com/read/29345162/genetic-defect-of-a-combined-17-%C3%AE-hydroxylase-17-20-lyase-deficiency-patient-with-adrenal-crisis
#17
Yunqiang Zhang, Xuyin Zhang, Yiqun Wang, Keqin Hua, Jingxin Ding
Combined 17 α-hydroxylase/17,20-lyase deficiency (17OHD) is a rare autosomal recessive disease that is a type of congenital adrenal hyperplasia, which results in hypertension, hypokalemia, sexual infantilism, primary amenorrhea in females (46,XX), or pseudohermaphroditism in males (46,XY). It is mainly caused by mutation in the CYP17A1 gene, which encodes a key enzyme in the steroidogenic pathway. However, these patients rarely experience adrenal crisis, due to abnormally high corticosterone levels. Here, we report a 17OHD patient who experienced clinical adrenal crisis on day 1 after gonadectomy...
January 18, 2018: Gynecological Endocrinology
https://www.readbyqxmd.com/read/29343601/the-evolution-of-sexual-signal-modes-and-associated-sensor-morphology-in-fireflies-lampyridae-coleoptera
#18
Kathrin F Stanger-Hall, Sarah E Sander Lower, Lauri Lindberg, Andrew Hopkins, Jenna Pallansch, David W Hall
Animals employ different sexual signal modes (e.g. visual, acoustic, chemical) in different environments and behavioural contexts. If sensory structures are costly, then evolutionary shifts in primary signal mode should be associated with changes in sensor morphology. Further, sex differences are expected if male and female signalling behaviours differ. Fireflies are known for their light displays, but many species communicate exclusively with pheromones, including species that recently lost their light signals...
January 31, 2018: Proceedings. Biological Sciences
https://www.readbyqxmd.com/read/29343596/daphnia-invest-in-sexual-reproduction-when-its-relative-costs-are-reduced
#19
Nina Gerber, Hanna Kokko, Dieter Ebert, Isobel Booksmythe
The timing of sex in facultatively sexual organisms is critical to fitness, due to the differing demographic consequences of sexual versus asexual reproduction. In addition to the costs of sex itself, an association of sex with the production of dormant life stages also influences the optimal use of sex, especially in environments where resting eggs are essential to survive unfavourable conditions. Here we document population dynamics and the occurrence of sexual reproduction in natural populations of Daphnia magna across their growing season...
January 31, 2018: Proceedings. Biological Sciences
https://www.readbyqxmd.com/read/29343577/cellular-and-humoral-immunity-protect-against-vaginal-zika-virus-infection-in-mice
#20
Jason M Scott, Tania J Lebratti, Justin M Richner, Xiaoping Jiang, Estefania Fernandez, Haiyan Zhao, Daved H Fremont, Michael S Diamond, Haina Shin
Zika virus (ZIKV), which can cause devastating disease in fetuses of infected pregnant women, can be transmitted by mosquito inoculation and sexual routes. Little is known about immune protection against sexually transmitted ZIKV. In this study, we show that previous infection through intravaginal or subcutaneous routes with a contemporary Brazilian strain of ZIKV can protect against subsequent intravaginal challenge with a homologous strain. Both routes of inoculation induced high titers of ZIKV-specific and neutralizing antibody in serum and the vaginal lumen...
January 17, 2018: Journal of Virology
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