keyword
MENU ▼
Read by QxMD icon Read
search

female reproduction

keyword
https://www.readbyqxmd.com/read/29244804/conditional-knockout-mice-for-the-distal-appendage-protein-cep164-reveal-its-essential-roles-in-airway-multiciliated-cell-differentiation
#1
Saul S Siller, Himanshu Sharma, Shuai Li, June Yang, Yong Zhang, Michael J Holtzman, Wipawee Winuthayanon, Holly Colognato, Bernadette C Holdener, Feng-Qian Li, Ken-Ichi Takemaru
Multiciliated cells of the airways, brain ventricles, and female reproductive tract provide the motive force for mucociliary clearance, cerebrospinal fluid circulation, and ovum transport. Despite their clear importance to human biology and health, the molecular mechanisms underlying multiciliated cell differentiation are poorly understood. Prior studies implicate the distal appendage/transition fiber protein CEP164 as a central regulator of primary ciliogenesis; however, its role in multiciliogenesis remains unknown...
December 15, 2017: PLoS Genetics
https://www.readbyqxmd.com/read/29244563/offspring-size-and-reproductive-allocation-in-harvester-ants
#2
Diane C Wiernasz, Blaine J Cole
A fundamental decision that an organism must make is how to allocate resources to offspring, with respect to both size and number. The two major theoretical approaches to this problem, optimal offspring size and optimistic brood size models, make different predictions that may be reconciled by including how offspring fitness is related to size. We extended the reasoning of Trivers and Willard (1973) to derive a general model of how parents should allocate additional resources with respect to the number of males and females produced, and among individuals of each sex, based on the fitness payoffs of each...
January 2018: American Naturalist
https://www.readbyqxmd.com/read/29244560/sex-specific-heterogeneity-in-fixed-morphological-traits-influences-individual-fitness-in-a-monogamous-bird-population
#3
Floriane Plard, Susanne Schindler, Raphaël Arlettaz, Michael Schaub
Theoretical work has emphasized the important role of individual traits on population dynamics, but empirical models are often based on average or stage-dependent demographic rates. In this study on a monogamous bird, the Eurasian hoopoe (Upupa epops), we show how the interactions between male and female fixed and dynamic heterogeneity influence demographic rates and population dynamics. We built an integral projection model including individual sex, age, condition (reflecting dynamic heterogeneity), and fixed morphology (reflecting fixed heterogeneity)...
January 2018: American Naturalist
https://www.readbyqxmd.com/read/29244163/regulation-of-chromosome-segregation-in-oocytes-and-the-cellular-basis-for-female-meiotic-errors
#4
Jessica Greaney, Zhe Wei, Hayden Homer
BACKGROUND: Meiotic chromosome segregation in human oocytes is notoriously error-prone, especially with ageing. Such errors markedly reduce the reproductive chances of increasing numbers of women embarking on pregnancy later in life. However, understanding the basis for these errors is hampered by limited access to human oocytes. OBJECTIVE AND RATIONALE: Important new discoveries have arisen from molecular analyses of human female recombination and aneuploidy along with high-resolution analyses of human oocyte maturation and mouse models...
December 13, 2017: Human Reproduction Update
https://www.readbyqxmd.com/read/29244016/oleic-acid-in-the-modulation-of-oocyte-and-preimplantation-embryo-development
#5
Shabnam Fayezi, Jo L M R Leroy, Marefat Ghaffari Novin, Masoud Darabi
Potential reproductive effects are considered as the major aspect of biomolecules functionality in an organism. The recent identification of differential patterns of fatty acids across ovarian follicles and their association with levels of sexual maturity highlights the importance of these biomolecules. It is well known that fatty acids are highly diverse in terms of their functional properties. Oleic acid is chemically classified as an unsaturated omega-9 fatty acid. Besides serving as an important energy source, oleic acid is involved in metabolic and structural roles...
December 15, 2017: Zygote: the Biology of Gametes and Early Embryos
https://www.readbyqxmd.com/read/29243395/species-comparison-of-postnatal-development-of-the-female-reproductive-system
#6
REVIEW
Susan B Laffan, Lorraine M Posobiec, Jenny E Uhl, Justin D Vidal
The postnatal development of the female reproductive system in laboratory animals and humans is reviewed. To enable a meaningful species comparison of the developing female reproductive system, common definitions of developmental processes were established with a focus made on aspects that are similar across species. A species comparison of the key endocrine, morphologic, and functional (onset of ovarian cycles and ability to reproduce) features of postnatal development of the female reproductive system is provided for human, nonhuman primate, dog, rat, and also mouse, minipig, and rabbit where possible...
December 15, 2017: Birth Defects Research
https://www.readbyqxmd.com/read/29243148/impaired-reproduction-and-individual-growth-of-the-water-flea-daphnia-magna-as-consequence-of-exposure-to-the-non-ester-pyrethroid-etofenprox
#7
Encarna Sancho, Sandra Banegas, María José Villarroel, Dolores Ferrando
The effect of the pesticide etofenprox (0.76, 0.95, 1.18, 1.48, and 1.85 μg L-1) on survival, reproduction, and growth of Daphnia magna organisms was monitored using 21-day exposure tests. In order to test pesticide effects on D. magna, survival, length, mean total neonates per female, mean brood size, time to first reproduction, mean number broods per female, cumulative molting, and the population parameter intrinsic rate of natural increase (r) were used. Reproduction was seriously affected by etofenprox...
December 14, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/29243140/mutational-analysis-of-izumo1r-in-women-with-fertilization-failure-and-polyspermy-after-in-vitro-fertilization
#8
Mengru Yu, Han Zhao, Tailai Chen, Ye Tian, Mei Li, Keliang Wu, Yuehong Bian, Shizhen Su, Yongzhi Cao, Yunna Ning, Hongbin Liu, Zi-Jiang Chen
PURPOSE: The etiology of fertilization failure and polyspermy during assisted reproductive technology (ART) remains elusive. The aim of this study was to determine whether mutations in the IZUMO1 receptor (IZUMO1R) gene, which is essential for mammalian fertilization, contribute to the pathogenesis of fertilization failure or polyspermy in humans. METHODS: We recruited 215 female subjects with fertilization failure/poor fertilization, 330 females with polyspermy, and 300 matched controls...
December 15, 2017: Journal of Assisted Reproduction and Genetics
https://www.readbyqxmd.com/read/29242633/sexual-function-in-women-with-polycystic-ovary-syndrome-and-their-hormonal-and-clinical-correlations
#9
Fatemeh Nasiri Amiri, Fahimeh Ramezani Tehrani, Sedighe Esmailzadeh, Maryam Tohidi, Fereidoun Azizi, Zahra Basirat
Polycystic ovary syndrome (PCOS) appears to be related to sexual dysfunction, especially if associated with obvious clinical and hormonal signs of hyperandrogenism. The objective of this study was to determine the correlation of PCOS and its hormonal and clinical parameters with sexual function. This prospective, cross-sectional study conducted on 18-45-year-old PCOS women (according to the Rotterdam criteria), who were referred to the Reproductive Endocrinology Research Center, Iran, was invited to participate from January 2012 to December 2015...
December 15, 2017: International Journal of Impotence Research
https://www.readbyqxmd.com/read/29242567/a-coxiella-mutualist-symbiont-is-essential-to-the-development-of-rhipicephalus-microplus
#10
Melina Garcia Guizzo, Luís Fernando Parizi, Rodrigo Dutra Nunes, Renata Schama, Rodolpho M Albano, Lucas Tirloni, Daiane Patrícia Oldiges, Ricardo Pilz Vieira, Wanderson Henrique Cruz Oliveira, Milane de Souza Leite, Sergio A Gonzales, Marisa Farber, Orlando Martins, Itabajara da Silva Vaz, Pedro L Oliveira
The cattle tick Rhipicephalus microplus is a hematophagous ectoparasite that causes important economic losses in livestock. Different species of ticks harbor a symbiont bacterium of the genus Coxiella. It was showed that a Coxiella endosymbiont from R. microplus (CERM) is a vertically transmitted mutualist symbiont, comprising 98% of the 16S rRNA sequences in both eggs and larvae. Sequencing of the bacterial genome revealed genes for biosynthetic pathways for several vitamins and key metabolic cofactors that may provide a nutritional complement to the tick host...
December 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29242234/arabidopsis-pollen-tube-integrity-and-sperm-release-are-regulated-by-ralf-mediated-signaling
#11
Zengxiang Ge, Tabata Bergonci, Yuling Zhao, Yanjiao Zou, Shuo Du, Ming-Che Liu, Xingju Luo, Hao Ruan, Liliana E García-Valencia, Sheng Zhong, Saiying Hou, Qingpei Huang, Luhua Lai, Daniel S Moura, Hongya Gu, Juan Dong, Hen-Ming Wu, Thomas Dresselhaus, Junyu Xiao, Alice Y Cheung, Li-Jia Qu
In flowering plants, fertilization requires complex cell-to-cell communication events between the pollen tube and the female reproductive tissues, which are controlled by extracellular signaling molecules interacting with receptors at the pollen tube surface. We found that two such receptors in Arabidopsis, BUPS1 and BUPS2, and their peptide ligands, RALF4 and RALF19, are pollen tube-expressed and are required to maintain pollen tube integrity. BUPS1 and BUPS2 interact with receptors ANXUR1 and ANXUR2 via their ectodomains, and both sets of receptors bind RALF4 and RALF19...
December 14, 2017: Science
https://www.readbyqxmd.com/read/29242197/jak-signaling-regulates-germline-cyst-breakdown-and-primordial-follicle-formation-in-mice
#12
Kun Huang, Ye Wang, Tuo Zhang, Meina He, Guanghong Sun, Jia Wen, Hao Yan, Han Cai, Changfu Yong, Guoliang Xia, Chao Wang
In female mammals, primordial follicles consist of two types of cells, namely, oocytes and pregranulosa cells that surround the oocytes. The size of the primordial follicle pool determines the reproductive ability of female mammals. However, the underlying mechanisms controlling primordial follicle assembly remain unclear. In this study, we show that oocyte-derived Janus kinase (JAK) signaling is vital for germline cyst breakdown and primordial follicle formation in vitro JAK2 and JAK3 activity is increased while germline cysts are breaking down...
December 14, 2017: Biology Open
https://www.readbyqxmd.com/read/29241537/nucleus-accumbens-dopamine-signaling-regulates-sexual-preference-for-females-in-male-mice
#13
Yamit Beny-Shefer, Noga Zilkha, Yael Lavi-Avnon, Nadav Bezalel, Ilana Rogachev, Alexander Brandis, Molly Dayan, Tali Kimchi
Sexual preference for the opposite sex is a fundamental behavior underlying reproductive success, but the neural mechanisms remain unclear. Here, we examined the role of dopamine signaling in the nucleus accumbens core (NAcc) in governing chemosensory-mediated preference for females in TrpC2-/- and wild-type male mice. TrpC2-/- males, deficient in VNO-mediated signaling, do not display mating or olfactory preference toward females. We found that, during social interaction with females, TrpC2-/- males do not show increased NAcc dopamine levels, observed in wild-type males...
December 12, 2017: Cell Reports
https://www.readbyqxmd.com/read/29241080/paternal-urinary-concentrations-of-organophosphate-flame-retardant-metabolites-fertility-measures-and-pregnancy-outcomes-among-couples-undergoing-in-vitro-fertilization
#14
Courtney C Carignan, Lidia Mínguez-Alarcón, Paige L Williams, John D Meeker, Heather M Stapleton, Craig M Butt, Thomas L Toth, Jennifer B Ford, Russ Hauser
BACKGROUND: Use of organophosphate flame retardants (PFRs) has increased over the past decade following the phase out of some brominated flame retardants, leading to increased human exposure. We recently reported that increasing maternal PFR exposure is associated with poorer pregnancy outcomes among women from a fertility clinic. Because a small epidemiologic study previously reported an inverse association between male PFR exposures and sperm motility, we sought to examine associations of paternal urinary concentrations of PFR metabolites and their partner's pregnancy outcomes...
December 11, 2017: Environment International
https://www.readbyqxmd.com/read/29240975/macroecological-patterns-of-sexual-size-dimorphism-in-turtles-of-the-world
#15
Mickey Agha, Joshua R Ennen, A Justin Nowakowski, Jeffrey E Lovich, Sarah C Sweat, Brian D Todd
Sexual size dimorphism (SSD) is a well-documented phenomenon in both plants and animals; however, the ecological and evolutionary mechanisms that drive and maintain SSD patterns across geographic space at regional and global scales are understudied, especially for reptiles. Our goal was to examine geographic variation of turtle SSD and to explore ecological and environmental correlates using phylogenetic comparative methods. We use published body size data on 135 species from nine turtle families to examine how geographic patterns and the evolution of SSD are influenced by habitat specialization, climate (annual mean temperature and annual precipitation) and climate variability, latitude, or a combination of these predictor variables...
December 14, 2017: Journal of Evolutionary Biology
https://www.readbyqxmd.com/read/29240891/primary-ovarian-insufficiency-and-azospermia-in-carriers-of-a-homozygous-psmc3ip-stop-gain-mutation
#16
Abdulmoein Eid Al-Agha, Ihab Abdulhamed Ahmed, Esther Nuebel, Mika Moriwaki, Barry Moore, Katherine A Peacock, Tim Mosbruger, Deborah W Neklason, Lynn B Jorde, Mark Yandell, Corrine K Welt
Context: The etiology of primary ovarian insufficiency (POI) remains unknown in a majority of cases. Objective: We sought to identify genes causing POI. Design: The study was a familial genetic study. Setting: The study was performed in two academic institutions. Patients: We identified a consanguineous Yemeni family in which 4 daughters had POI. A brother had azoospermia. Intervention: DNA was subjected to whole genome sequencing...
December 12, 2017: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/29238970/the-consequences-of-sexual-selection-in-well-adapted-and-maladapted-populations-of-bean-beetles
#17
Ivain Martinossi-Allibert, Uroš Savković, Mirko Đorđević, Göran Arnqvist, Biljana Stojković, David Berger
Whether sexual selection generally promotes or impedes population persistence remains an open question. Intralocus sexual conflict (IaSC) can render sexual selection in males detrimental to the population by increasing the frequency of alleles with positive effects on male reproductive success but negative effects on female fecundity. Recent modelling based on fitness landscape theory, however, indicates that the relative impact of IaSC may be reduced in maladapted populations and that sexual selection therefore might promote adaptation when it is most needed...
December 14, 2017: Evolution; International Journal of Organic Evolution
https://www.readbyqxmd.com/read/29238579/acute-abdomen-with-a-misleading-clinical-entity
#18
Jitendra Singh Nigam, Pushpanjali Ojha, Chitrawati Bal Gargade, Archana Hemant Deshpande
Massive ovarian edema is a rare, non-neoplastic solid tumor-like lesion. It results from compromised venous and lymphatic drainage due to partial or intermittent torsion of ovarian pedicle. Pain, distension or abdominal mass, menstrual irregularities, infertility and hormone-related symptoms can be the clinical presentation. We report a case of massive ovarian edema in a 28-year-old female who presented with acute pain abdomen. She was diagnosed clinico-radiologically with solid ovarian tumor and massive ovarian edema on histology...
2017: SAGE Open Medical Case Reports
https://www.readbyqxmd.com/read/29238561/precopulatory-but-not-postcopulatory-male-reproductive-traits-diverge-in-response-to-mating-system-manipulation-in-drosophila-melanogaster
#19
Kristina U Wensing, Mareike Koppik, Claudia Fricke
Competition between males creates potential for pre- and postcopulatory sexual selection and conflict. Theory predicts that males facing risk of sperm competition should evolve traits to secure their reproductive success. If those traits are costly to females, the evolution of such traits may also increase conflict between the sexes. Conversely, under the absence of sperm competition, one expectation is for selection on male competitive traits to relax thereby also relaxing sexual conflict. Experimental evolution studies are a powerful tool to test this expectation...
December 2017: Ecology and Evolution
https://www.readbyqxmd.com/read/29238553/understanding-predation-risk-and-individual-variation-in-risk-avoidance-for-threatened-boreal-caribou
#20
Matthew A Mumma, Michael P Gillingham, Chris J Johnson, Katherine L Parker
Predation risk is a driver of species' distributions. Animals can increase risk avoidance in response to fluctuations in predation risk, but questions remain regarding individual variability and the capacity to respond to changes in spatial risk across human-altered landscapes. In northeast British Columbia, Canada, boreal caribou populations declined as roads and seismic lines have increased, which are theorized to increase gray wolf predation. Our goal was to model risk and to evaluate individual variability and the development of risk perception by examining individual risk avoidance in response to reproductive status and age...
December 2017: Ecology and Evolution
keyword
keyword
57490
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"