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https://www.readbyqxmd.com/read/28630127/deciphering-function-of-new-gonococcal-vaccine-antigens-using-phenotypic-microarrays
#1
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
#2
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
#3
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
#4
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...
June 12, 2017: Current Biology: CB
https://www.readbyqxmd.com/read/28625191/attraction-and-consumption-of-methyl-eugenol-by-male-bactrocera-umbrosa-fabricius-diptera-tephritidae-promotes-conspecific-sexual-communication-and-mating-performance
#5
S L Wee, M Z Abdul Munir, A K W Hee
The Artocarpus fruit fly, Bactrocera umbrosa (Fabricius) (Diptera: Tephritidae), is an oligophagous fruit pest infesting Moraceae fruits, including jackfruit (Artocarpus heterophyllus Lamarck), a fruit commodity of high value in Malaysia. The scarcity of fundamental biological, physiological and ecological information on this pest, particularly in relation to behavioural response to phytochemical lures, which are instrumental to the success of many area-wide fruit fly control and management programmes, underpins the need for studies on this much-underrated pest...
June 19, 2017: Bulletin of Entomological Research
https://www.readbyqxmd.com/read/28625113/men-with-a-terminal-illness-relax-their-criteria-for-facial-attractiveness
#6
Dariusz P Danel, Agnieszka E Siennicka, Pawel Fedurek, Tomasz Frackowiak, Piotr Sorokowski, Ewa A Jankowska, Boguslaw Pawlowski
According to the life history paradigm, in life-threatening conditions, sexual selection criteria are relaxed in order to increase the probability of a last resort reproduction, ultimately contributing to reproductive success. This should be reflected in loosened mating preferences - a process observed in nonhuman animals. Studies investigating this aspect in humans, however, are scarce. This study explored the aesthetic preferences towards facial and nonfacial stimuli in terminally ill patients with heart failure (HF) and their healthy, same-sex peers...
July 2017: American Journal of Men's Health
https://www.readbyqxmd.com/read/28621451/knockdown-of-a-metathoracic-scent-gland-desaturase-enhances-the-production-of-e-4-oxo-2-hexenal-and-suppresses-female-sexual-attractiveness-in-the-plant-bug-adelphocoris-suturalis
#7
J Luo, Z Li, C Ma, Z Zhang, J J Hull, C Lei, S Jin, L Chen
Insect sex pheromones (SPs) are central to mate-finding behaviour, and play an essential role in the survival and reproduction of organisms. Understanding the roles, biosynthetic pathways and evolution of insect chemical communication systems has been an exciting challenge for biologists. Compared with Lepidoptera, little is known about the mechanisms underlying pheromone biosynthesis in Hemiptera. In this study, we isolated and characterized two new desaturase-like genes, termed Asutdes1 and Asutdes2, from Adelphocoris suturalis, an important agricultural pest in China...
June 16, 2017: Insect Molecular Biology
https://www.readbyqxmd.com/read/28620738/variation-in-sex-pheromone-emission-does-not-reflect-immunocompetence-but-affects-attractiveness-of-male-burying-beetles-a-combination-of-laboratory-and-field-experiments
#8
Johanna Chemnitz, Nadiia Bagrii, Manfred Ayasse, Sandra Steiger
Life history theory predicts a trade-off between male sexual trait expression and immunocompetence. Using burying beetles, Nicrophorus vespilloides, as a model, we investigated the relationship between male immune function, sex pheromone emission, and attractiveness under field conditions. In the first experiment, we tested whether there is a positive correlation between immune capacity, sex pheromone characteristics (quantity, relative composition, and time invested in pheromone emission), and male attractiveness...
August 2017: Die Naturwissenschaften
https://www.readbyqxmd.com/read/28604441/increasing-human-papillomavirus-vaccine-coverage-among-men-who-have-sex-with-men-national-hiv-behavioral-surveillance-united-states-2014
#9
Sara E Oliver, Brooke E Hoots, Gabriela Paz-Bailey, Lauri E Markowitz, Elissa Meites
BACKGROUND: Human papillomavirus (HPV) can cause oropharyngeal and anogenital cancers among men who have sex with men (MSM). In 2011, the Advisory Committee on Immunization Practices (ACIP) extended HPV vaccine recommendations to males through age 21 and MSM through age 26. Because of this distinction, vaccination for some MSM might rely on sexual behavior disclosure to health care providers. Receipt of ≥1 HPV vaccination among MSM aged 18-26 in National HIV Behavioral Surveillance (NHBS) was 4...
July 1, 2017: Journal of Acquired Immune Deficiency Syndromes: JAIDS
https://www.readbyqxmd.com/read/28604017/religion-repulsion-and-reaction-formation-transforming-repellent-attractions-and-repulsions
#10
Dov Cohen, Emily Kim, Nathan W Hudson
Protestants were more likely than non-Protestants to demonstrate phenomena consistent with the use of reaction formation. Lab experiments showed that when manipulations were designed to produce taboo attractions (to unconventional sexual practices), Protestants instead showed greater repulsion. When implicitly conditioned to produce taboo repulsions (to African Americans), Protestants instead showed greater attraction. Supportive evidence from other studies came from clinicians' judgments, defense mechanism inventories, and a survey of respondent attitudes...
June 12, 2017: Journal of Personality and Social Psychology
https://www.readbyqxmd.com/read/28601940/the-male-produced-aggregation-pheromone-of-a-strawberry-sap-beetle-lobiopa-insularis-coleoptera-nitidulidae
#11
Antonioni A C Moliterno, Camila B C Martins, Daiane Szczerbowski, Maria Aparecida C Zawadneak, Paulo H G Zarbin
The nitidulid beetle Lobiopa insularis is an important pest of strawberry crops in the United States and Brazil. Both larvae and adults feed on ripe strawberries, causing 20-70% loss in production during serious infestations. Aiming at the development of efficient, clean, and highly specific pest management systems, semiochemicals, especially pheromones, are particularly useful. Analyses of the extracts of both males and females obtained from aeration of live beetles showed the presence of three male specific compounds, 2-nonanone, 2-undecanone, and 2-undecanol (in an enantiomeric ratio of S:R = 3...
June 10, 2017: Journal of Chemical Ecology
https://www.readbyqxmd.com/read/28601939/n-pentacosane-acts-as-both-contact-and-volatile-pheromone-in-the-tea-weevil-myllocerinus-aurolineatus
#12
Xiaoling Sun, Xinzhong Zhang, Guangyuan Wu, Xiwang Li, Fenngjing Liu, Zhaojun Xin, Jin Zhang
Insect cuticular hydrocarbons (CHCs) play important roles in chemical communication, as well as having ecological and physiological roles. The use of CHCs for mate recognition has been shown in many insect genera, but little is known about their use in the tea weevil Myllocerinus aurolineatus. Here, we provide evidence that CHCs on the surface of sexually mature M. aurolineatus females act as contact sex pheromones, facilitating mate recognition and eliciting copulatory behavior in male weevils. Using gas chromatography-mass spectrometry, we identify n-pentacosane and n-heptacosane as two potential contact pheromone components...
June 10, 2017: Journal of Chemical Ecology
https://www.readbyqxmd.com/read/28597143/sexual-orientation-gender-identity-and-romantic-relationships-in-adolescents-and-adults-with-autism-spectrum-disorder
#13
J Dewinter, H De Graaf, S Begeer
This study compared sexual orientation and romantic relationship experience in a large sample of adolescents and adults with autism spectrum disorder (ASD) (n = 675) and general population peers (n = 8064). Gender identity was explored in the ASD group in relation to assigned gender at birth. Compared to general population peers, more people with ASD, especially women, reported sexual attraction to both same- and opposite-sex partners. About half of the participants with ASD was in a relationship (heterosexual in most cases) and most of them lived with their partner...
June 9, 2017: Journal of Autism and Developmental Disorders
https://www.readbyqxmd.com/read/28594843/microbes-and-masculinity-does-exposure-to-pathogenic-cues-alter-women-s-preferences-for-male-facial-masculinity-and-beardedness
#14
Toneya L McIntosh, Anthony J Lee, Morgan J Sidari, Rebecca E Stower, James M Sherlock, Barnaby J W Dixson
Women's preferences for men's androgen dependent secondary sexual traits are proposed to be phenotypically plastic in response to exposure to pathogens and pathogen disgust. While previous studies report that masculinity in facial shape is more attractive to women who have recently been exposed to pathogenic cues and who are high in self-reported pathogen disgust, facial hair may reduce male attractiveness under conditions of high pathogens as beards are a possible breeding ground for disease carrying ectoparasites...
2017: PloS One
https://www.readbyqxmd.com/read/28587589/sexual-selection-and-the-evolution-of-male-pheromone-glands-in-philanthine-wasps-hymenoptera-crabronidae
#15
Katharina Weiss, Gudrun Herzner, Erhard Strohm
BACKGROUND: Sexual selection is thought to promote evolutionary changes and diversification. However, the impact of sexual selection in relation to other selective forces is difficult to evaluate. Male digger wasps of the tribe Philanthini (Hymenoptera, Philanthinae) scent mark territories to attract receptive females. Consequently, the organs for production and storage of the marking secretion, the mandibular gland (MG) and the postpharyngeal gland (PPG), are subject to sexual selection...
June 6, 2017: BMC Evolutionary Biology
https://www.readbyqxmd.com/read/28585596/sexual-self-esteem-in-mothers-of-normal-and-mentally-retarded-children
#16
Jahanshir Tavakolizadeh, Mostafa Amiri, Fahimeh Rastgoo Nejad
Sexual self-esteem is negatively influenced by the stressful experiences in lifetime. This study compared the sexual self-esteem and its components in mothers with normal and mentally-retarded children in Qaen city, in 2014. A total of 120 mothers were selected and assigned into two groups of 60 samples based on convenient sampling method and randomized multiple stage sampling. Both groups completed sexual self-esteem questionnaire. The data were analyzed employing t-test through SPSS software version15. The results showed that the rate of sexual self-esteem in mothers of mentally-retarded children decreased significantly compared with that of mothers with normal children (p<0...
June 2017: JPMA. the Journal of the Pakistan Medical Association
https://www.readbyqxmd.com/read/28580886/normal-developmental-and-estrous-cycle-dependent-histological-features-of-the-female-reproductive-organs-in-microminipigs
#17
Akihisa Kangawa, Masayoshi Otake, Satoko Enya, Toshinori Yoshida, Masatoshi Shibata
The microminipig has become an increasingly attractive animal model for various experimental practices because of its manageable size; however, studies of the histological features of the female reproductive organs in microminipigs are limited. The present study investigates the sexual development of the reproductive organs and the cyclical changes during the estrous cycle in female microminipigs. The ovaries, oviducts, uteri, and vaginal tissues from 33 animals aged 0 to 26 months were utilized in this study...
January 1, 2017: Toxicologic Pathology
https://www.readbyqxmd.com/read/28579698/size-of-nest-cavity-entrance-influences-male-attractiveness-and-paternal-provisioning-in-house-wrens
#18
Darren S Will, Erin E Dorset, Charles F Thompson, Scott K Sakaluk, E Keith Bowers
In altricial birds, parental provisioning is plastic and can respond to a variety of environmental stimuli. In this study, we manipulated the size of entrances into artificial nest cavities (i.e., nestboxes) in a population of house wrens (Troglodytes aedon) as a means of manipulating a male's sexual attractiveness, and examined changes in parental provisioning. Nest cavities with large entrances are less desirable as nesting sites, and the males at these sites are less attractive to females. Therefore, we predicted that males at boxes that had large entrances would invest more in parental care (i...
May 2017: Journal of Zoology: Proceedings of the Zoological Society of London
https://www.readbyqxmd.com/read/28553008/song-duration-mediates-responses-of-territory-owner-in-a-songbird-species-with-a-small-song-repertoire
#19
Tomasz S Osiejuk, Aleksandra Jakubowska
Song is a sexually selected trait that is involved in mate attraction and territory defence in birds. Songs may convey information about different male quality components. They are flexible in terms of frequency, amplitude, and duration. Although changes in song duration are common, the function of this behaviour has been studied less strongly. It is known that song duration changes within a singing bout and may provide information about aggressive motivation. We tested whether the elongation and shortening of songs affects the responses of territorial ortolan bunting males to neighbour song playback...
2017: Acta Ethologica
https://www.readbyqxmd.com/read/28536987/sexual-deception-in-the-eucera-pollinated-ophrys-leochroma-a-chemical-intermediate-between-wasp-and-andrena-pollinated-species
#20
Monica Cuervo, Demetra Rakosy, Carlos Martel, Stefan Schulz, Manfred Ayasse
Ophrys flowers mimic sex pheromones of attractive females of their pollinators and attract males, which attempt to copulate with the flower and thereby pollinate it. Virgin females and orchid flowers are known to use the same chemical compounds in order to attract males. The composition of the sex pheromone and its floral analogue, however, vary between pollinator genera. Wasp-pollinated Ophrys species attract their pollinators by using polar hydroxy acids, whereas Andrena-pollinated species use a mixture of non-polar hydrocarbons...
May 23, 2017: Journal of Chemical Ecology
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