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https://www.readbyqxmd.com/read/28727818/prep-in-italy-the-time-may-be-ripe-but-who-s-paying-the-bill-a-nationwide-survey-on-physicians-attitudes-towards-using-antiretrovirals-to-prevent-hiv-infection
#1
Antonio Di Biagio, Niccolò Riccardi, Alessio Signori, Renato Maserati, Silvia Nozza, Andrea Gori, Stefano Bonora, Marco Borderi, Diego Ripamonti, Maria Cristina Rossi, Giancarlo Orofino, Tiziana Quirino, Giuseppe Nunnari, Benedetto Maurizio Celesia, Salvatore Martini, Caterina Sagnelli, Giovanni Mazzola, Pietro Colletti, Dario Bartolozzi, Teresa Bini, Nicoletta Ladisa, Filippo Castelnuovo, Annalisa Saracino, Sergio Lo Caputo
Several studies have demonstrated the efficacy of the oral pre-exposure prophylaxis (PrEP) with tenofovir (with or without emtricitabine) on preventing HIV-negative partners of HIV infected patients to become infected through sexual contacts. PrEP is already available in the United States and now is approved by European Medicine Agency. In this setting we would like to gauge physicians' knowledge, acquaintance with and attitude to include PrEP in their clinical practice. A cross sectional survey was conducted among Italian physicians expert on antiretroviral therapy...
2017: PloS One
https://www.readbyqxmd.com/read/28726309/religion-sexual-orientation-and-suicide-attempts-among-a-sample-of-suicidal-adolescents
#2
Annie Shearer, Jody Russon, Joanna Herres, Amanda Wong, Carrie Jacobs, Gary M Diamond, Guy S Diamond
Despite condemnation of same-sex attraction by certain religious groups, few studies have explored the relationship between religion, same-sex attraction, and suicidality. This study examined the moderating effect of same-sex attraction on the relationship between parent/adolescent religiosity and suicide ideation/attempts in a suicidal adolescent sample (N = 129). Linear and negative binomial regressions tested the effects of a two-way dichotomous (same-sex attraction, yes/no) by continuous (religiosity) interaction on ideation and attempts, respectively...
July 20, 2017: Suicide & Life-threatening Behavior
https://www.readbyqxmd.com/read/28725411/choosing-a-mate-in-a-high-predation-environment-female-preference-in-the-fiddler-crab-uca-terpsichores
#3
Daniela M Perez, John H Christy, Patricia R Y Backwell
The interplay between a receiver's sensory system and a sender's courtship signals is fundamental to the operation of sexual selection. Male courtship signals that match a female receiver's preexisting perceptual biases can be favored yet the message they communicate is not always clear. Do they simply beacon the male's location or also indicate his quality? We explored this question in a species of fiddler crab Uca terpsichores that courts under elevated predation risk and that mates and breeds underground in the safety of males' burrows...
October 2016: Ecology and Evolution
https://www.readbyqxmd.com/read/28724892/sexual-and-non-sexual-social-preferences-in-male-and-female-white-eyed-bulbuls
#4
Bekir Kabasakal, Miroslav Poláček, Aziz Aslan, Herbert Hoi, Ali Erdoğan, Matteo Griggio
While the function of ornaments shaped by sexual selection is to attract mates or drive off rivals, these signals may also evolve through social selection, in which the social context affects the fitness of signallers and receivers. Classical 'mate choice' experiments often reveal preferences for ornaments, but few studies have considered whether these are strictly sexual or reflect general social preferences. Indeed, an alternative possibility is that ornaments evolve through 'non-sexual social selection' (hereafter 'social selection')...
July 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28723467/human-papillomavirus-infection-and-vaccination-in-males
#5
REVIEW
Eugenio Ventimiglia, Simon Horenblas, Asif Muneer, Andrea Salonia
CONTEXT: Human papillomavirus (HPV) is the commonest sexually transmitted pathogen in humans and is linked to the aetiopathogenesis for both benign and malignant disease in men. OBJECTIVE: To evaluate and summarise the evidence for HPV infection and vaccination in men. EVIDENCE ACQUISITION: A search of Medline, PubMed, and Scopus was performed to identify articles published in English within the last 10 yr addressing HPV epidemiology, the natural history of HPV infection and its long-term consequences, and vaccination in men...
October 2016: European Urology Focus
https://www.readbyqxmd.com/read/28721287/mediterranean-diet-and-erectile-dysfunction-a-current-perspective
#6
Simona Di Francesco, Raffaele Lanfranco Tenaglia
INTRODUCTION: In this current perspective we analyzed the role of Mediterranean diet (MedDiet) in sexual function and particularly in erectile dysfunction (ED), according to the latest scientific evidence. MATERIAL AND METHODS: We conducted a systematic search of relevant full-length papers identified during the time period from 1 January 2010 to the present. RESULTS: Published studies showed that adherence to a MedDiet contributes to preventing ED through an improved lipid and glucose metabolism, increased antioxidant defenses, and increased arginine levels which could raise nitric oxide activity...
June 30, 2017: Central European Journal of Urology
https://www.readbyqxmd.com/read/28715233/betrayals-in-emerging-adulthood-a-developmental-perspective-of-infidelity
#7
Jerika C Norona, Spencer B Olmstead, Deborah P Welsh
Infidelity is associated with considerable distress and discord in dating relationships. The current mixed methods study examined both the written narratives and survey responses of 104 (59.6% women) emerging adults to investigate reasons for engaging in infidelity (i.e., sexual and emotional infidelity). Emerging adults' reasons for engaging in infidelity were attributed primarily to their primary relationships and/or their romantic partners not fulfilling their needs for interdependence and thus feeling motivated to fulfill these needs elsewhere...
July 17, 2017: Journal of Sex Research
https://www.readbyqxmd.com/read/28714712/spatial-cues-influence-the-visual-perception-of-gender
#8
Sarah Ariel Lamer, Max Weisbuch, Timothy D Sweeny
Spatial localization is a basic process in vision, occurring reliably when people encounter an object or person. Yet the role of spatial-location in the visual perception of people is poorly understood. We explored the extent to which spatial-location distorts the perception of gender. Consistent with evidence that the perception of objects is constrained by their location in visual scenes, enhancing perception for objects in their typical location (e.g., Biederman et al., 1982), we hypothesized that people would see relatively greater femininity in faces that appeared lower in space...
July 17, 2017: Journal of Experimental Psychology. General
https://www.readbyqxmd.com/read/28714217/evolutionary-relationships-among-pollinators-and-repeated-pollinator-sharing-in-sexually-deceptive-orchids
#9
R D Phillips, G R Brown, K W Dixon, C Hayes, C C Linde, R Peakall
The mechanism of pollinator attraction is predicted to strongly influence both plant diversification and the extent of pollinator sharing between species. Sexually deceptive orchids rely on mimicry of species-specific sex pheromones to attract their insect pollinators. Given that sex pheromones tend to be conserved among related species, we predicted that in sexually deceptive orchids, (i) pollinator sharing is rare, (ii) closely related orchids use closely related pollinators and (iii) there is strong bias in the wasp lineages exploited by orchids...
July 17, 2017: Journal of Evolutionary Biology
https://www.readbyqxmd.com/read/28701997/early-intranasal-vasopressin-administration-impairs-partner-preference-in-adult-male-prairie-voles-microtus-ochrogaster
#10
Trenton C Simmons, Jessica F Balland, Janeet Dhauna, Sang Yun Yang, Jason L Traina, Jessica Vazquez, Karen L Bales
Research supports a modulatory role for arginine vasopressin (AVP) in the expression of socially motivated behaviors in mammals. The acute effects of AVP administration are demonstrably pro-social across species, providing the justification for an ever-increasing measure of clinical interest over the last decade. Combining these results with non-invasive intranasal delivery results in an attractive system for offering intranasal AVP (IN-AVP) as a therapeutic for the social impairments of children with autism spectrum disorder...
2017: Frontiers in Endocrinology
https://www.readbyqxmd.com/read/28694497/role-of-visual-and-olfactory-cues-in-sex-recognition-in-butterfly-cethosia-cyane-cyane
#11
Chengzhe Li, Hua Wang, Xiaoming Chen, Jun Yao, Lei Shi, Chengli Zhou
Butterflies use multiple signals, including visual, olfactory and tactile cues, to identify same- and opposite-sex individuals during courtship. In this study of the sexually dimorphic butterfly Cethosia cyane cyane, we explored the roles of visual and olfactory cues in conspecific mate recognition during courtship. Our results showed that males took the initiative in actively chasing females during courtship using only visual cues. Males could distinguish the gender of conspecifics using visual cues alone...
July 10, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28691340/intra-and-intersexual-swim-bladder-dimorphisms-in-the-plainfin-midshipman-fish-porichthys-notatus-implications-of-swim-bladder-proximity-to-the-inner-ear-for-sound-pressure-detection
#12
Robert A Mohr, Elizabeth A Whitchurch, Ryan D Anderson, Paul M Forlano, Richard R Fay, Darlene R Ketten, Timothy C Cox, Joseph A Sisneros
The plainfin midshipman fish, Porichthys notatus, is a nocturnal marine teleost that uses social acoustic signals for communication during the breeding season. Nesting type I males produce multiharmonic advertisement calls by contracting their swim bladder sonic muscles to attract females for courtship and spawning while subsequently attracting cuckholding type II males. Here, we report intra- and intersexual dimorphisms of the swim bladder in a vocal teleost fish and detail the swim bladder dimorphisms in the three sexual phenotypes (females, type I and II males) of plainfin midshipman fish...
July 10, 2017: Journal of Morphology
https://www.readbyqxmd.com/read/28664190/social-interactions-in-different-environments-impacts-and-motivates-reproductive-displays-in-college-students
#13
J Wortham, A Miller
Social environments can have an impact on the interactions between the sexes, specifically pre-courtship behaviors. Sexual selection theory may explain social interactions of the sexes, where males display and attract mates more than females. These behaviors may intensify in a sexual environment. It was hypothesized that individuals would display more in a sexualized environment compared to a non-sexualized location. This research sampled N = 880 participants at a university in a southern state in North America and asked which unisex sunglasses they preferred...
June 2017: Heliyon
https://www.readbyqxmd.com/read/28651990/a-novel-function-of-vitellogenin-subdomain-vwf-type-d-as-a-toxin-binding-protein-in-the-pufferfish-takifugu-pardalis-ovary
#14
Xianzhe Yin, Aya Kiriake, Akira Ohta, Yoichiro Kitani, Shoichiro Ishizaki, Yuji Nagashima
Marine pufferfish of the Tetraodontidae family contain high levels of tetrodotoxin (TTX) in the liver and ovary. TTX is suggested to transfer from the liver to the ovary in female pufferfish during maturation. TTX in pufferfish eggs may act as a repellent against predators and as a sexual pheromone to attract male pufferfish. The toxification mechanism of the pufferfish ovary is poorly understood. Here we evaluated the chemical form of TTX and its related substances in the ovary of the panther pufferfish Takifugu pardalis by LC-ESI/MS...
June 23, 2017: Toxicon: Official Journal of the International Society on Toxinology
https://www.readbyqxmd.com/read/28650227/facilitators-and-barriers-to-participation-in-prep-hiv-prevention-trials-involving-transgender-male-and-female-adolescents-and-emerging-adults
#15
Celia B Fisher, Adam L Fried, Margaret Desmond, Kathryn Macapagal, Brian Mustanski
Despite the disproportionate burden of HIV facing transgender youth, they continue to be under-represented in studies to provide an empirical basis for pre-exposure prophylaxis (PrEP) programs that can meet the unique needs of this population. This study examined facilitators and barriers to participation in a PrEP adherence study, determined through an online survey administered to 90 transgender male and 60 transgender female 14-21-year-olds attracted to cisgender male sexual partners. Approximately 50% reported likely to participate in the PrEP study...
June 2017: AIDS Education and Prevention: Official Publication of the International Society for AIDS Education
https://www.readbyqxmd.com/read/28637324/the-effects-of-phytosterols-on-the-sexual-behavior-and-reproductive-function-in-the-japanese-quail-coturnix-coturnix-japonica
#16
Mohammad Ibrahim Qasimi, Kentaro Nagaoka, Gen Watanabe
Phytosterols (PS) are plant origin sterols naturally found in many foods and added as food additives. Since 1950, PS have attracted considerable attention due to their ability to lower serum cholesterol and inhibit cardiovascular disease (CVD). However, recent studies have found that PS act as endocrine-disrupting chemicals in laboratory animals. Therefore, this study was aimed at finding the mechanism(s) for PS effects on the sexual behaviors and reproductive functions in male Japanese quails (Coturnix coturnix japonica)...
June 16, 2017: Poultry Science
https://www.readbyqxmd.com/read/28630127/deciphering-function-of-new-gonococcal-vaccine-antigens-using-phenotypic-microarrays
#17
Benjamin I Baarda, Sarah Emerson, Philip J Proteau, Aleksandra E Sikora
The function and extracellular location of cell envelope proteins make them attractive candidates for developing vaccines against bacterial diseases, including challenging, drug-resistant pathogens such as Neisseria gonorrhoeae Proteomics-driven reverse vaccinology delivered multiple gonorrhea vaccine candidates; however, the biological functions of many of them remain to be elucidated. Herein, the functions of six gonorrhea vaccine candidates - NGO2121, NGO1985, NGO2054, NGO2111, NGO1205, and NGO1344 - in cell envelope homeostasis were probed using phenotype microarrays with 1,056 conditions and a ΔbamE mutant (Δngo1780) as a reference of perturbed outer membrane integrity...
June 19, 2017: Journal of Bacteriology
https://www.readbyqxmd.com/read/28628620/prevalence-and-determinants-of-online-sex-use-in-the-german-population
#18
Manfred E Beutel, Sebastian Giralt, Klaus Wölfling, Yve Stöbel-Richter, Claudia Subic-Wrana, Iris Reiner, Ana Nanette Tibubos, Elmar Brähler
INTRODUCTION: The unlimited access to sexual features in the World Wide Web has raised concerns about excessive and problematic online-sex use. However, little is known about antecedents of internet-sex use of different intensity. Based on a representative German sample of 2,522 participants between the ages of 14 and 97 years, the aims of the present study were (1) to determine the prevalence rates of online-sex users with the short version (ISSTGSV) of the Internet Sex Screening Test and (2) to associate online-sex use with anxious vs...
2017: PloS One
https://www.readbyqxmd.com/read/28628371/sexual-desire-among-an-online-sample-of-men-sexually-attracted-to-children
#19
Renae C Mitchell, Alex P Bravo, M Paz Galupo
Sexual attraction to children occurs in roughly 3 to 9 percent of the population. However, most knowledge about such desires comes from forensic samples, and most studies fail to assess preferred sexual activity and sexual partner. A new multimodal assessment of sexual desire was used to investigate interest in consensual and nonconsensual sex with adults and children in an online sample of men sexually attracted to children (n = 101). Desires were compared across history of sex offending behavior and preferred gender of child victim...
June 19, 2017: Journal of Child Sexual Abuse
https://www.readbyqxmd.com/read/28625782/complex-sexual-deception-in-an-orchid-is-achieved-by-co-opting-two-independent-biosynthetic-pathways-for-pollinator-attraction
#20
Haiyang Xu, Björn Bohman, Darren C J Wong, Claudia Rodriguez-Delgado, Adrian Scaffidi, Gavin R Flematti, Ryan D Phillips, Eran Pichersky, Rod Peakall
Sexually deceptive orchids lure their specific male pollinators using volatile semiochemicals that mimic female sex pheromones. To date, the semiochemicals known to be involved consist of blends of chemically and biosynthetically related compounds. In contrast, we report that (S)-β-citronellol and 2-hydroxy-6-methylacetophenone, two biosynthetically distinct compounds, are the active semiochemicals in Caladenia plicata, which is pollinated by male Zeleboria sp. thynnine wasps. They are also sex pheromone components of the female Zeleboria...
July 10, 2017: Current Biology: CB
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