30,533 results match your criteria Sexuality Reproduction & Menopause[Journal]


The Rise of Apomixis in Natural Plant Populations.

Front Plant Sci 2019 2;10:358. Epub 2019 Apr 2.

Department of Systematics, Biodiversity and Evolution of Plants (with Herbarium), Albrecht-von-Haller Institute for Plant Sciences, University of Göttingen, Göttingen, Germany.

Apomixis, the asexual reproduction via seed, has many potential applications for plant breeding by maintaining desirable genotypes over generations. Since most major crops do not express natural apomixis, it is useful to understand the origin and maintenance of apomixis in natural plant systems. Here, we review the state of knowledge on origin, establishment and maintenance of natural apomixis. Read More

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https://www.frontiersin.org/article/10.3389/fpls.2019.00358/
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http://dx.doi.org/10.3389/fpls.2019.00358DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6454013PMC
April 2019
1 Read

Transcriptomic analysis reveals differences in the regulation of amino acid metabolism in asexual and sexual planarians.

Sci Rep 2019 Apr 16;9(1):6132. Epub 2019 Apr 16.

Department of Biology, Faculty of Agriculture and Life Science, Hirosaki University, 3 Bunkyo-cho, Hirosaki, Aomori, 036-8561, Japan.

Many flatworms can alternate between asexual and sexual reproduction. This is a powerful reproductive strategy enabling them to benefit from the features of the two reproductive modes, namely, rapid multiplication and genetic shuffling. The two reproductive modes are enabled by the presence of pluripotent adult stem cells (neoblasts), by generating any type of tissue in the asexual mode, and producing and maintaining germ cells in the sexual mode. Read More

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http://dx.doi.org/10.1038/s41598-019-42025-zDOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6467871PMC

How to become a successful invasive tapeworm: a case study of abandoned sexuality and exceptional chromosome diversification in the triploid carp parasite Atractolytocestus huronensis Anthony, 1958 (Caryophyllidea: Lytocestidae).

Parasit Vectors 2019 Apr 11;12(1):161. Epub 2019 Apr 11.

Department of Zoology and Fisheries, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, Kamýcká 129, 16500, Praha Suchdol, Czech Republic.

Background: A cytogenetic analysis of the new local triploid population of the caryophyllidean tapeworm Atractolytocestus huronensis, a unique parthenogenetic species with the ability to colonise new regions, was performed to understand the inner structure of its chromosome complement.

Methods: A karyotype analysis was carried out using classical Giemsa staining and C-banding combined with fluorescent DAPI staining. A hypothesis that triplets are composed from three homologue chromosomes of approximately the same length and same centromere position was tested statistically for multiple dependent variables using a non-parametric Friedman's ANOVA. Read More

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http://dx.doi.org/10.1186/s13071-019-3420-0DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6458723PMC

Genomics of Flower Identity in Grapevine ( L.).

Front Plant Sci 2019 21;10:316. Epub 2019 Mar 21.

Department of Agronomy, Food, Natural Resources, Animals, and Environment, University of Padua, Legnaro, Italy.

The identity of the four characteristic whorls of typical eudicots, namely, sepals, petals, stamens, and carpels, is specified by the overlapping action of homeotic genes, whose single and combined contributions have been described in detail in the so-called ABCDE model. Continuous species-specific refinements and translations resulted in this model providing the basis for understanding the genetic and molecular mechanisms of flower development in model organisms, such as and other main plant species. Although grapevine ( L. Read More

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https://www.frontiersin.org/article/10.3389/fpls.2019.00316/
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http://dx.doi.org/10.3389/fpls.2019.00316DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6437108PMC
March 2019
4 Reads

[Sexual behaviour of the school-going youth in the city of Likasi, Democratic Republic of Congo].

Pan Afr Med J 2018 14;31:34. Epub 2018 Sep 14.

Université de Malemba Nkulu, République Démocratique du Congo.

Introduction: Numerous studies on sexuality conducted in sub-Saharan Africa report an increase in sexual activity among single young people. Adolescent population begins sexual activity earlier, has unstable relationships and multiple partners according to the proximity to the members of their households. This study aims to determine the prevalence of sexually active youth and to evaluate the factors influencing sexual behavior. Read More

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http://dx.doi.org/10.11604/pamj.2018.31.34.16088DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6431422PMC

The gonadotropin-inhibitory hormone system of fish: The case of sea bass (Dicentrarchus labrax).

Gen Comp Endocrinol 2019 Mar 25. Epub 2019 Mar 25.

Department of Biology, Faculty of Marine and Environmental Sciences and INMAR, University of Cádiz, CEIMAR, Puerto Real (Cádiz), Spain. Electronic address:

Gonadotropin-inhibitory hormone (GnIH) is a hypothalamic neuropeptide belonging to the RFamide peptide family that was first discovered in quail by Tsutsui and co-workers in the year 2000. Since then, different GnIH orthologues have been identified in all vertebrate groups, from agnathans to mammals. These GnIH genes synthesize peptide precursors that encompass two to four C-terminal LPXRFamide peptides. Read More

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http://dx.doi.org/10.1016/j.ygcen.2019.03.015DOI Listing

Sex differences in pollinator behavior: Patterns across species and consequences for the mutualism.

J Anim Ecol 2019 Mar 28. Epub 2019 Mar 28.

Department of Ecology and Evolutionary Biology, University of Arizona, Tucson, Arizona.

Intraspecific variation in floral visitor behaviour and pollination efficiency has been much less studied than interspecific variation. Nevertheless, it is clear that large differences in these traits exist within species, and in particular between sexes within species. With the exception of a few well-studied interactions, however, the consequences of these differences in the pollinators and visited plants remain to be investigated. Read More

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http://dx.doi.org/10.1111/1365-2656.12988DOI Listing
March 2019
1 Read

Fertility, sexuality and cancer in young adult women.

Curr Opin Oncol 2019 Mar 15. Epub 2019 Mar 15.

Fertility Clinic, CUB-Hôpital Erasme and Research Laboratory on Human Reproduction, Université Libre de Bruxelles (U.L.B.), Brussels, Belgium.

Purpose Of Review: To provide an up-to-date overview on indications, efficacy and safety of the existing fertility preservation strategies as well as on the features and management of sexual dysfunction in young adult women with newly diagnosed cancer.

Recent Findings: Because of the improved life expectancy of cancer survivors, a growing attention should be given to the side effects of anticancer treatments. Among young cancer patients, risk of infertility and sexual dysfunction are of great concern. Read More

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http://dx.doi.org/10.1097/CCO.0000000000000540DOI Listing
March 2019
1 Read

Genetic variation in , a coral reef symbiont, in response to temperature and nutrients.

Ecol Evol 2019 Mar 7;9(5):2803-2813. Epub 2019 Feb 7.

Biology Department California State University Northridge California.

Symbionts within the family are important on coral reefs because they provide significant amounts of carbon to many different reef species. The breakdown of this mutualism that occurs as a result of increasingly warmer ocean temperatures is a major threat to coral reef ecosystems globally. Recombination during sexual reproduction and high rates of somatic mutation can lead to increased genetic variation within symbiont species, which may provide the fuel for natural selection and adaptation. Read More

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http://dx.doi.org/10.1002/ece3.4959DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6406013PMC

Impact of heat stress on the reproductive performance and physiology of ewes: a systematic review and meta-analyses.

Int J Biometeorol 2019 Mar 19. Epub 2019 Mar 19.

Laboratorio de Reproducción Animal, Facultad de Medicina Veterinaria y Zootecnia, Universidad Autónoma de Sinaloa, Boulevard San Ángel 3886, Predio Las Coloradas, 80246, Culiacán Rosales, Sinaloa, Mexico.

High values of ambient temperature and relative humidity negatively affect livestock because they induce heat stress. In heat-stressed ewes, the reproduction is affected, although there apparently is a different effect depending on their physiological status. Therefore, we conducted a systematic review and meta-analyses to estimate the effect of heat stress on the reproductive performance and physiology of cycling or pregnant ewes. Read More

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http://dx.doi.org/10.1007/s00484-019-01707-zDOI Listing

Correction to: the revised international technical guidance on sexuality education - a powerful tool at an important crossroads for sexuality education.

Reprod Health 2019 Mar 11;16(1):30. Epub 2019 Mar 11.

WHO Department of Reproductive Health and Research/Human Reproduction Programme, Geneva, Switzerland.

In the version of this article that was. Read More

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http://dx.doi.org/10.1186/s12978-019-0675-zDOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6410497PMC
March 2019
1.616 Impact Factor

The Gonadotropin-Inhibitory Hormone: What We Know and What We Still Have to Learn From Fish.

Front Endocrinol (Lausanne) 2019 19;10:78. Epub 2019 Feb 19.

Departamento de Biodiversidad y Biología Experimental, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Buenos Aires, Argentina.

Gonadotropin-inhibitory hormone, GnIH, is named because of its function in birds and mammals; however, in other vertebrates this function is not yet clearly established. More than half of the vertebrate species are teleosts. This group is characterized by the 3R whole genome duplication, a fact that could have been responsible for the great phenotypic complexity and great variability in reproductive strategies and sexual behavior. Read More

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http://dx.doi.org/10.3389/fendo.2019.00078DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6389629PMC
February 2019

Emergency Contraception Use in School-Based Health Centers: A Qualitative Study.

J Pediatr Adolesc Gynecol 2019 Apr 27;32(2):175-181. Epub 2018 Oct 27.

Department of Obstetrics, Gynecology and Reproductive Sciences, Icahn School of Medicine at Mount Sinai, New York, New York.

Study Objective: To understand contraceptive behaviors and decision-making in school-based health center (SBHC) female patients who have used emergency contraception (EC).

Design: Qualitative interviews and questionnaires.

Setting: SBHCs. Read More

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http://dx.doi.org/10.1016/j.jpag.2018.10.005DOI Listing
April 2019
5 Reads

Interventions using social networking sites to promote contraception in women of reproductive age.

Cochrane Database Syst Rev 2019 03 1;3:CD012521. Epub 2019 Mar 1.

Public Health Training Programme, Health Education England, Stewart House, 32 Russell Square, London, WC1B 5DN, London, UK.

Background: Social networking sites (SNSs) have great potential as a platform for public health interventions to address the unmet need for contraception.

Objectives: To evaluate the effectiveness of interventions using SNSs to promote the uptake of and adherence to contraception in reproductive-age women.

Search Methods: We searched CENTRAL, MEDLINE, Embase, and six other databases on January 2018. Read More

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http://dx.doi.org/10.1002/14651858.CD012521.pub2DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6395225PMC
March 2019
2 Reads

Repetitive sex change in the stony coral Herpolitha limax across a wide geographic range.

Sci Rep 2019 Feb 27;9(1):2936. Epub 2019 Feb 27.

Tel Aviv University, School of Zoology, Tel Aviv, 6997801, Israel.

Sex change has been widely studied in animals and plants. However, the conditions favoring sex change, its mode and timing remain poorly known. Here, for the first time in stony corals, we report on a protandrous (youngest individuals are males) repetitive sex change exhibited by the fungiid coral Herpolitha limax across large spatial scales (the coral reefs of Japan, Jordan and Israel) and temporal scales (2004-2017). Read More

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http://dx.doi.org/10.1038/s41598-018-37619-yDOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6393666PMC
February 2019

Central role of G protein Gαi2 and Gαi2 vomeronasal neurons in balancing territorial and infant-directed aggression of male mice.

Proc Natl Acad Sci U S A 2019 03 25;116(11):5135-5143. Epub 2019 Feb 25.

Laboratoire de Physiologie de la Reproduction et des Comportements, UMR Institut National de la Recherche Agronomique (INRA)-CNRS-Institut Français du Cheval et de l'Equitation (IFCE)-University of Tours, 37380 Nouzilly, France;

Aggression is controlled by the olfactory system in many animal species. In male mice, territorial and infant-directed aggression are tightly regulated by the vomeronasal organ (VNO), but how diverse subsets of sensory neurons convey pheromonal information to limbic centers is not yet known. Here, we employ genetic strategies to show that mouse vomeronasal sensory neurons expressing the G protein subunit Gαi2 regulate male-male and infant-directed aggression through distinct circuit mechanisms. Read More

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http://dx.doi.org/10.1073/pnas.1821492116DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6421405PMC
March 2019
1 Read
9.809 Impact Factor

Sexual intraspecific recombination but not origin governs the genesis of new apomictic genotypes in (Rosaceae).

Taxon 2018 Dec;67(6):1108-1131

University of Salzburg, Department of Biosciences, Hellbrunnerstraße 34, 5020 Salzburg, Austria.

Apomixis - asexual reproduction via seeds - might arise following polyploidisation events, or via reproductive transfer of apomixis. Both processes can be obtained within species or via hybridisation. We aimed to determine the origin of apomictic genotypes in , a rosaceous species showing reproductive differentiation with ploidy: sexual tetraploids and apomictic penta- to octoploids, which regularly co-occur in sympatry. Read More

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6382066PMC
December 2018

Male sexual dysfunction: A review of literature on its pathological mechanisms, potential risk factors, and herbal drug intervention.

Biomed Pharmacother 2019 Apr 21;112:108585. Epub 2019 Feb 21.

Department of Pharmacology, China Pharmaceutical University, Nanjing, 211198, China. Electronic address:

Sexual dysfunction (SD) is a disorder of sexual behavior and sexual sensation that appears as an abnormality or absence of sexual psychology and physiological reaction. It is a general term for many different symptoms includes several aspects, erectile dysfunction (ED), failure of sexual intercourse and loss of libido/desire. According to statistics, 52% of 40˜70 year old men suffer from varying degrees of SD. Read More

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http://dx.doi.org/10.1016/j.biopha.2019.01.046DOI Listing
April 2019
1 Read
2.023 Impact Factor

The global school-based student health survey as a tool to guide adolescent health interventions in rural Guatemala.

BMC Public Health 2019 Feb 22;19(1):226. Epub 2019 Feb 22.

Department of Epidemiology, Colorado School of Public Health, Aurora, CO, USA.

Background: Adolescents from rural areas in low-middle income countries face increasing physical and mental health challenges that are not well characterized or addressed due to resource limitations. We used the Global School-based Student Health Survey (GSHS) to describe adolescent health behaviors, and to inform prioritization of health promotion efforts in a resource-limited, rural, agricultural region in Guatemala.

Methods: In July 2015, a group of volunteers administered the GSHS to students from seven schools in four communities in the southwest Trifinio region of Guatemala. Read More

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http://dx.doi.org/10.1186/s12889-019-6539-1DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6387528PMC
February 2019

Should I store, or should I sync? The breeding strategy of two small Neotropical primates under predictable resource availability.

Primates 2019 Mar 20;60(2):113-118. Epub 2019 Feb 20.

Programa de Pós-graduação em Ecologia, Instituto de Biologia, Universidade Estadual de Campinas, São Paulo, Brazil.

Primates employ many strategies to deal with the costs of reproduction. While income breeders exploit the food available in their environment during lactation, the most costly phase of reproduction, capital breeders tend to store energy for use in the period. We analyzed the relationship between resource availability and lactation in Callicebus coimbrai (n = 2 groups) and Callicebus nigrifrons (n = 2 groups) in four Brazilian Atlantic forest remnants, to assess their breeding strategy. Read More

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http://dx.doi.org/10.1007/s10329-019-00716-1DOI Listing

Temperature-induced changes in reproductive variables in the teleost fish Lophiosilurus alexandri.

J Therm Biol 2019 Feb 8;80:133-140. Epub 2019 Jan 8.

Laboratório de Aquacultura, Departamento de Zootecnia, Escola de Veterinária, Universidade Federal de Minas Gerais - UFMG, Av. Antônio Carlos, 6627, CEP 31270-901 Belo Horizonte, MG, Brazil. Electronic address:

The present study evaluates whether increased water temperature induces reproduction by Lophiosilurus alexandri under controlled conditions, and investigates the effects of this procedure on sexual steroids, hematological profile and behavior. A 44-week experiment was performed with four wild males and 12 wild females that had been acclimatized to captive conditions. Water temperature was maintained at 24. Read More

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https://linkinghub.elsevier.com/retrieve/pii/S03064565183007
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http://dx.doi.org/10.1016/j.jtherbio.2019.01.008DOI Listing
February 2019
8 Reads

The prevalence of modern contraceptive use and its associated socio-economic factors in Ghana: evidence from a demographic and health survey of Ghanaian men.

Authors:
S A Butame

Public Health 2019 Mar 12;168:128-136. Epub 2019 Feb 12.

Florida State University, College of Medicine, Center for Translational and Behavioral Sciences, 115 W Call Street, Tallahassee, FL 32306, USA. Electronic address:

Objective: This study estimated the prevalence of modern contraceptive use (MCU) and the sociodemographic factors associated with MCU among sexually active men in Ghana. The study is informed by the Health Belief Model, which is used as a conceptual framework for understanding MCU.

Study Design: This was a cross-sectional study of 2014 Ghana Demographic and Health Survey data. Read More

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http://dx.doi.org/10.1016/j.puhe.2018.12.020DOI Listing
March 2019
1 Read

Environmentally relevant concentrations of bifenthrin affect the expression of estrogen and glucocorticoid receptors in brains of female western mosquitofish.

Aquat Toxicol 2019 Apr 17;209:121-131. Epub 2018 Dec 17.

Department of Neurobiology, Physiology, and Behavior, University of California, Davis, United States.

In recent decades, pyrethroid pesticides have been deemed a safer alternative to previously used pesticides. While some evidence supports this assumption in mammals and birds, exposure to certain pyrethroids can affect concentrations of hormones vital to reproduction in fish. Thus, we hypothesized that pyrethroid exposure impacts fish reproductive behavior and the expression of genes associated with reproduction. Read More

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http://dx.doi.org/10.1016/j.aquatox.2018.12.001DOI Listing
April 2019
2 Reads

Age of both parents influences reproduction and egg dumping behavior in Drosophila melanogaster.

J Hered 2019 Feb 7. Epub 2019 Feb 7.

Department of Ecology and Evolutionary Biology, Brown University, Providence, Rhode Island, USA.

Trans-generational maternal effects have been shown to influence a broad range of offspring phenotypes. However, very little is known about paternal trans-generational effects. Here, we tested the trans-generational effects of maternal and paternal age, and their interaction, on daughter and son reproductive fitness in Drosophila melanogaster. Read More

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http://dx.doi.org/10.1093/jhered/esz009DOI Listing
February 2019

Contraceptive Needs of Adolescents with Chronic Illness.

Pediatr Ann 2019 Feb;48(2):e78-e85

Contraception and sexual health form a key part of comprehensive health care for all adolescents, including those who suffer from chronic illness. Multiple studies have shown that adolescents with chronic illness have rates of sexual activity equal to or greater than their healthy counterparts. Primary care pediatricians have the most comprehensive view of the health of their medically complex patients and the benefit of a longstanding relationship. Read More

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http://dx.doi.org/10.3928/19382359-20190121-01DOI Listing
February 2019
2 Reads

The Reproductive Health Care of Transgender Young People: A Guide for Primary Care Providers.

Pediatr Ann 2019 Feb;48(2):e64-e70

Primary care providers should have a general understanding of the medical care available to transgender youth throughout childhood and adolescence. Providers and parents should create an affirming environment for young people at every developmental stage, while ensuring thorough and thoughtful evaluations prior to any medical intervention. Transgender teens have unique reproductive health care needs. Read More

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http://dx.doi.org/10.3928/19382359-20190116-04DOI Listing
February 2019

Context-specific behavioural changes induced by exposure to an androgenic endocrine disruptor.

Sci Total Environ 2019 May 30;664:177-187. Epub 2019 Jan 30.

School of Biological Sciences, Monash University, Victoria, Australia.

Pharmaceutical contaminants are being detected with increased frequency in organisms and ecosystems worldwide. This represents a major environmental concern given that various pharmaceuticals act on drug targets that are evolutionarily conserved across diverse taxa, are often persistent in the environment, and can bioconcentrate in organisms and bioaccumulate in food chains. Despite this, relatively little is known about the potential for pharmaceutical contaminants to affect animal behaviour, especially across multiple fitness-related contexts. Read More

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http://dx.doi.org/10.1016/j.scitotenv.2019.01.382DOI Listing
May 2019
3 Reads
4.099 Impact Factor

Multiple Evolutionary Routes to Monogamy: Modeling the Coevolution of Mating Decisions and Parental Investment.

Am Nat 2019 Feb 19;193(2):E29-E40. Epub 2018 Nov 19.

The relationships between mating decisions and parental investment are central to evolution, but to date few theoretical treatments of their coevolution have been developed. Here we adopt a demographically explicit, adaptive dynamics approach to analyze the coevolution of female mating decisions and parental investment of both sexes in a self-consistent way. Our models predict that where females cannot interfere with one another's mating decisions and where they do not differ in their survival and fecundity prospects, monogamy should be rare, favored only under harsh environmental conditions, in sparse populations. Read More

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http://dx.doi.org/10.1086/700698DOI Listing
February 2019

Synthetic progestin etonogestrel negatively affects mating behavior and reproduction in Endler's guppies (Poecilia wingei).

Sci Total Environ 2019 May 24;663:206-215. Epub 2019 Jan 24.

Faculty of Fisheries and Protection of Waters, South Bohemian Research Centre of Aquaculture and Biodiversity of Hydrocenoses, University of South Bohemia in České Budějovice, Zátiší 728/II, 389 25, Vodňany, Czech Republic.

High rates of progestins consumption in the form of active ingredients in women's oral contraceptives and other hormonal preparations may lead to their increased concentrations in aquatic environments and subsequent harmful effect on fish reproduction. The objective of the present study was to assess the effect of etonogestrel, a third-generation synthetic progestin, on the reproductive behavior, fertility, gonads histology, and secondary sexual characteristics of male and female Endler's guppies (Poecilia wingei). Fish were subjected for 34 days to two concentrations of etonogestrel, including one possibly environmentally relevant (3. Read More

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http://dx.doi.org/10.1016/j.scitotenv.2019.01.276DOI Listing
May 2019
2 Reads
4.099 Impact Factor

Attitudes and practices related to intrauterine devices for nulliparous women among Chinese health care providers.

Reprod Health 2019 Jan 31;16(1):10. Epub 2019 Jan 31.

NHC Key Lab. of Reproduction Regulation (Shanghai Institute of Planned Parenthood Research), Fudan University, Shanghai, 200237, China.

Background: Unintended pregnancy and induced abortion among young (unmarried or nulliparous) women have become serious social and health issues in China, which are thought to partly result from low use of long-acting reversible contraception, such as intrauterine devices (IUDs). Considering that providers may play an especially important role in increasing use of this particular method, we investigated Chinese health care providers' attitudes and practices regarding IUDs use for nulliparous women, and further examine the potential factors and reasons contributing to their attitudes and practices.

Methods: We recruited health care providers at two Chinese national academic conferences and surveyed them about knowledge of IUDs, willingness to recommend IUDs to nulliparous women, and their related practices. Read More

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http://dx.doi.org/10.1186/s12978-019-0678-9DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6357508PMC
January 2019
2 Reads

Sexually Dimorphic Vasopressin Cells Modulate Social Investigation and Communication in Sex-Specific Ways.

eNeuro 2019 Jan-Feb;6(1). Epub 2019 Jan 28.

Georgia State University, Atlanta, GA 30303.

The neuropeptide arginine vasopressin (AVP) has long been implicated in the regulation of social behavior and communication, but precisely which AVP cell groups are involved is largely unknown. To address whether the sexually dimorphic AVP cell group in the bed nucleus of the stria terminalis (BNST) is important for social communication, we deleted BNST AVP cells by viral delivery of a Cre-dependent caspase-3 cell-death construct in AVP-iCre-positive mice using AVP-iCre negative littermate as controls, and assessed social, sexual, aggressive and anxiety-related behaviors. In males, lesioning BNST AVP cells reduced social investigation of other males and increased urine marking (UM) in the presence of a live female, without altering ultrasonic vocalizations (USVs), resident-intruder aggression, copulatory behavior, anxiety, or investigation of females or their odor cues. Read More

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http://dx.doi.org/10.1523/ENEURO.0415-18.2019DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6348451PMC
April 2019
1 Read

"Our girls need to see a path to the future" --perspectives on sexual and reproductive health information among adolescent girls, guardians, and initiation counselors in Mulanje district, Malawi.

Reprod Health 2019 Jan 25;16(1). Epub 2019 Jan 25.

Department of Health Services, School of Public Health, University of Washington, Seattle, WA, USA.

Background: Malawi has one of the highest adolescent pregnancy rates worldwide; at 141 births/1000 girls it is 3-fold higher than the global average. Adolescent pregnancy contributes to poor maternal and neonatal outcomes, school dropout, and poverty. In preparation for an information, education, and communication (IEC) intervention to reduce unintended pregnancy among adolescent girls, formative research was conducted to understand how and what sexual and reproductive health (SRH) information is shared with girls in southern, rural Malawi, and perceptions of such information among key informants. Read More

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https://reproductive-health-journal.biomedcentral.com/articl
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http://dx.doi.org/10.1186/s12978-018-0661-xDOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6347744PMC
January 2019
5 Reads

Effects of radiofrequency electromagnetic radiation (RF-EMF) on honey bee queen development and mating success.

Sci Total Environ 2019 Apr 15;661:553-562. Epub 2019 Jan 15.

University of Hohenheim, Apicultural State Institute, 70593 Stuttgart, Germany.

Mobile phones can be found almost everywhere across the globe, upholding a direct point-to-point connection between the device and the broadcast tower. The emission of radiofrequency electromagnetic fields (RF-EMF) puts the surrounding environment inevitably into contact with this radiation. We have therefore exposed honey bee queen larvae to the radiation of a common mobile phone device (GSM band at 900 MHz) during all stages of their pre-adult development including pupation. Read More

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https://linkinghub.elsevier.com/retrieve/pii/S00489697193017
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http://dx.doi.org/10.1016/j.scitotenv.2019.01.154DOI Listing
April 2019
1 Read

Life History in a Postconflict Society : Violent Intergroup Conflict Facilitates Fast Life-History Strategy.

Hum Nat 2019 Mar;30(1):59-70

Institute of Criminological and Sociological Research, Gračanička 18, Belgrade, 11000, Serbia.

Previous theoretical accounts have predicted that warfare and intergroup conflict are environmental factors that contribute to the emergence of a fast life-history strategy. However, this assumption has never been directly empirically tested. We examined youth who grew up in a territory that experienced violent intergroup conflict and compared them with a control group (N = 215) on various life-history measures: age of first sexual intercourse, mating behavior, desired timing of marriage and first reproduction and desired number of children. Read More

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http://dx.doi.org/10.1007/s12110-018-09336-yDOI Listing
March 2019
2 Reads

Unbalanced biparental care during colony foundation in two subterranean termites.

Ecol Evol 2019 Jan 30;9(1):192-200. Epub 2018 Dec 30.

Institut de Recherche sur la Biologie de l'Insecte (UMR7261) CNRS - University of Tours Tours France.

Parental care is a major component of reproduction in social organisms, particularly during the foundation steps. Because investment into parental care is often costly, each parent is predicted to maximize its fitness by providing less care than its partner. However, this sexual conflict is expected to be low in species with lifelong monogamy, because the fitness of each parent is typically tied to the other's input. Read More

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http://dx.doi.org/10.1002/ece3.4710DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6342128PMC
January 2019
2 Reads

Sexuality, fertility and family planning characteristics of married women aged 15 to 19 years in Ethiopia, Nigeria and Tanzania: a comparative analysis of cross-sectional data.

Reprod Health 2019 Jan 21;16(1). Epub 2019 Jan 21.

London School of Hygiene and Tropical Medicine, MRC Tropical Epidemiology Group, London, UK.

Background: Adolescents 360 (A360) is an initiative being rolled out across Ethiopia, Nigeria and Tanzania with the aim of increasing uptake of voluntary modern contraception among sexually active women aged 15 to 19 years. Using evaluation baseline survey data, we described key sexuality, fertility and contraceptive use characteristics of married women aged 15 to 19 years living in three sub-national settings.

Methods: Cross-sectional baseline surveys of married women aged 15 to 19 years were conducted in Oromia (Ethiopia), Nasarawa (Northern Nigeria), and Mwanza (Tanzania) between August 2017 and February 2018. Read More

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https://reproductive-health-journal.biomedcentral.com/articl
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http://dx.doi.org/10.1186/s12978-019-0666-0DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6341518PMC
January 2019
12 Reads

[LONGITUDINAL CHANGES OF FREE TESTOSTERONE LEVELS AND SEXUAL FUNCTION IN JAPANESE MEN EVALUATING TWO CROSS-SECTIONAL COMMUNITY-BASED STUDIES].

Nihon Hinyokika Gakkai Zasshi 2018 ;109(1):20-24

Department of Urology, Sapporo Medical University School of Medicine.

(Purpose) We conducted cross-sectional studies two times, in 1992 and 2007 and investigated the longitudinal changes of fT levels and sexual function by comparing the results. (Methods) In 1992 and 2007, we conducted cross-sectional surveys about lower urinary tract symptoms and sexual function in male inhabitants aged 40 to 79 years in Shimakaki village, Hokkaido. Comparing the results of these surveys, we analyzed longitudinal changes in fT levels and sexual function. Read More

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http://dx.doi.org/10.5980/jpnjurol.109.20DOI Listing
February 2019

Interventions for emergency contraception.

Cochrane Database Syst Rev 2019 01 20;1:CD001324. Epub 2019 Jan 20.

Centre for Clinical Research and Training, Key Laboratory of Reproduction Regulation of NPFPC, SIPPR, IRD, Fudan University, 2140 Xie Tu Road, Shanghai, China.

Background: Emergency contraception (EC) is using a drug or copper intrauterine device (Cu-IUD) to prevent pregnancy shortly after unprotected intercourse. Several interventions are available for EC. Information on the comparative effectiveness, safety and convenience of these methods is crucial for reproductive healthcare providers and the women they serve. Read More

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http://dx.doi.org/10.1002/14651858.CD001324.pub6DOI Listing
January 2019
6 Reads

Effects of combined exposure of adult male mice to di-(2-ethylexyl)phthalate and nonylphenol on behavioral and neuroendocrine responses.

Chemosphere 2019 Apr 14;221:573-582. Epub 2019 Jan 14.

Sorbonne Université, CNRS, INSERM, Neuroscience Paris Seine, Institut de Biologie Paris-Seine, 75005 Paris, France. Electronic address:

The present study evaluates the effects of adult exposure to low doses of a mixture of di-(2-ethylexyl)phthalate (DEHP) and nonylphenol (NP) on reproductive neuroendocrine function and behavior. The neural circuitry that processes male sexual behavior is tightly regulated by testosterone and its neural metabolite estradiol. In previous studies, we showed that adult exposure of mice to low doses of each of these widespread environmental contaminants resulted in altered sexual behavior, without any effect on the regulation of the gonadotropic axis. Read More

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http://dx.doi.org/10.1016/j.chemosphere.2019.01.071DOI Listing
April 2019
2 Reads

Effect of dietary inclusion of small quantities of Mucuna pruriens seed meal on sexual behavior, semen characteristics, and biochemical parameters in rabbit bucks (Oryctolagus cuniculus).

Trop Anim Health Prod 2019 Jan 19. Epub 2019 Jan 19.

Department of Veterinary Anatomy and Physiology, University of Nairobi, Nairobi, Kenya.

The aim of this work was to investigate the effects of Mucuna pruriens seed meal (MSM) on sexual behavior, semen, and biochemical parameters in rabbit bucks. Twenty-four 12-week-old rabbit bucks weighing 1002 to 1156 g were randomly allocated to three experimental diets containing 0, 1.5, and 3% of MSM in a 3-month trial. Read More

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http://dx.doi.org/10.1007/s11250-019-01808-2DOI Listing
January 2019
6 Reads

Sex peptide receptor-regulated polyandry modulates the balance of pre- and post-copulatory sexual selection in Drosophila.

Nat Commun 2019 01 17;10(1):283. Epub 2019 Jan 17.

Department of Zoology, Edward Grey Institute, University of Oxford, South Parks Road, Oxford, OX1 3PS, UK.

Polyandry prolongs sexual selection on males by forcing ejaculates to compete for fertilisation. Recent theory predicts that increasing polyandry may weaken pre-copulatory sexual selection on males and increase the relative importance of post-copulatory sexual selection, but experimental tests of this prediction are lacking. Here, we manipulate the polyandry levels in groups of Drosophila melanogaster by deletion of the female sex peptide receptor. Read More

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http://dx.doi.org/10.1038/s41467-018-08113-wDOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6336784PMC
January 2019

HIV pre-exposure prophylaxis (PrEP).

BMJ 2019 Jan 17;364:k4681. Epub 2019 Jan 17.

Department of Medicine, University of Toronto, Toronto, Ontario, Canada

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http://dx.doi.org/10.1136/bmj.k4681DOI Listing
January 2019
7 Reads

Surgical treatment for primary premature ejaculation with an inner condom technique.

Medicine (Baltimore) 2019 Jan;98(3):e14109

Department of Plastic and Reconstructive Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, People's Republic of China.

To explore a novel surgical treatment for primary premature ejaculation using an inner condom technique.A total of 20 males with premature ejaculation, who admitted our andrology clinic from June 2016 to July 2017, were enrolled. By surgery, an inner condom made of acellular dermal matrix (ADM) was transferred to the subcutaneous pocket of the penis. Read More

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http://dx.doi.org/10.1097/MD.0000000000014109DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6370163PMC
January 2019
12 Reads

The Genetics of Mating Song Evolution Underlying Rapid Speciation: Linking Quantitative Variation to Candidate Genes for Behavioral Isolation.

Genetics 2019 03 15;211(3):1089-1104. Epub 2019 Jan 15.

Department of Neurobiology and Behavior, Cornell University, Ithaca, New York 14853.

Differences in mating behaviors evolve early during speciation, eventually contributing to reproductive barriers between species. Knowledge of the genetic and genomic basis of these behaviors is therefore integral to a causal understanding of speciation. Acoustic behaviors are often part of the mating ritual in animal species. Read More

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http://dx.doi.org/10.1534/genetics.118.301706DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6404256PMC
March 2019
3 Reads

"They say that I have lost my integrity by breaking my virginity": experiences of teen school going mothers in two schools in Lusaka Zambia.

BMC Public Health 2019 Jan 14;19(1):62. Epub 2019 Jan 14.

Department of Health Promotion and Education, School of Public Health, University of Zambia, Lusaka, Zambia.

Background: Adolescent school-going mothers return to school in the rekindled hope of obtaining an education. However, their re-introduction into the school environment requires adequate support from teachers, fellow pupils, and the community. The purpose of this study was to explore the experiences of school-going mothers in Lusaka to understand their coping mechanism in the process of re-integration. Read More

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http://dx.doi.org/10.1186/s12889-019-6394-0DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6332585PMC
January 2019
1 Read

Exploring the Mechanism of Viral Peptide-Induced Membrane Fusion.

Adv Exp Med Biol 2018;1112:69-78

School of Chemistry, Sambalpur University, Burla, Odisha, India.

Membrane fusion is essential in several cellular processes in the existence of eukaryotic cells such as cellular trafficking, compartmentalization, intercellular communication, sexual reproduction, cell division, and endo- and exocytosis. Membrane fusion proceeds in model membranes as well as biological membranes through the rearrangement of lipids. The stalk hypothesis provides a picture of the general nature of lipid rearrangement based on mechanical properties and phase behavior of water-lipid mesomorphic systems. Read More

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http://dx.doi.org/10.1007/978-981-13-3065-0_6DOI Listing
January 2018
4 Reads

Conserved transcriptomic profiles underpin monogamy across vertebrates.

Proc Natl Acad Sci U S A 2019 01 7;116(4):1331-1336. Epub 2019 Jan 7.

Department of Integrative Biology, The University of Texas at Austin, Austin, TX 78712;

Social monogamy, typically characterized by the formation of a pair bond, increased territorial defense, and often biparental care, has independently evolved multiple times in animals. Despite the independent evolutionary origins of monogamous mating systems, several homologous brain regions and neuropeptides and their receptors have been shown to play a conserved role in regulating social affiliation and parental care, but little is known about the neuromolecular mechanisms underlying monogamy on a genomic scale. Here, we compare neural transcriptomes of reproductive males in monogamous and nonmonogamous species pairs of mice, voles, parid songbirds, dendrobatid frogs, and species of cichlid fishes. Read More

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http://dx.doi.org/10.1073/pnas.1813775116DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6347671PMC
January 2019
1 Read

Mating type (MAT) locus and possible sexuality of the opportunistic pathogen Exophiala dermatitidis.

Fungal Genet Biol 2019 Mar 3;124:29-38. Epub 2019 Jan 3.

Division of Mycology, Department of Microbiology, Faculty of Medicine, Çukurova University, Adana, Turkey. Electronic address:

Sexual reproduction among the black yeasts is generally limited to environmental saprobic species and is rarely observed among opportunists in humans. To date, a complete sexual cycle has not been observed in Exophiala dermatitidis. In this study, we aimed to gain insight into the reproductive mode of E. Read More

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http://dx.doi.org/10.1016/j.fgb.2018.12.011DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6417501PMC
March 2019
16 Reads