keyword
MENU ▼
Read by QxMD icon Read
search

Fertilization

keyword
https://www.readbyqxmd.com/read/29150724/presence-of-chlamydia-trachomatis-and-mycoplasma-spp-but-not-neisseria-gonorrhoeae-and-treponema-pallidum-in-women-undergoing-an-infertility-evaluation-high-prevalence-of-tetracycline-resistance-gene-tet-m
#1
Min Li, Xiaomei Zhang, Ke Huang, Haixiang Qiu, Jilei Zhang, Yuan Kang, Chengming Wang
Chlamydia trachomatis, Mycoplasma spp., Neisseria gonorrhoeae and Treponema pallidum are sexually transmitted pathogens that threaten reproductive health worldwide. In this study, vaginal swabs obtained from women (n = 133) that attended an infertility clinic in China were tested with qPCRs for C. trachomatis, Mycoplasma spp., N. gonorrhoeae, T. pallidum and tetracycline resistance genes. While none of vaginal swabs were positive for N. gonorrhoeae and T. pallidum, 18.8% (25/133) of the swabs were positive for Chlamydia spp...
November 17, 2017: AMB Express
https://www.readbyqxmd.com/read/29150594/mating-design-and-genetic-structure-of-a-multi-parent-advanced-generation-inter-cross-magic-population-of-sorghum-sorghum-bicolor-l-moench
#2
Patrick O Ongom, Gebisa Ejeta
MAGIC populations are powerful next generation mapping resources. We describe here the mating design and structure of the first MAGIC population in sorghum and test its utility for mapping. The population was developed by intercrossing 19 diverse founder lines, through a series of paired crosses with a genetic male sterile source, followed by 10 generations of random mating. At the final stage of random mating, one thousand random fertile plants in the population were identified and subjected to six generations of selfing to produce 1000 immortal MAGIC inbred lines...
November 17, 2017: G3: Genes—Genomes—Genetics
https://www.readbyqxmd.com/read/29150546/differential-regulation-of-two-tiered-plant-immunity-and-sexual-reproduction-by-anxur-receptor-like-kinases
#3
Hyunggon Mang, Baomin Feng, Zhangjian Hu, Aurelien Boisson-Dernier, Christina Franck, Xiangzong Meng, Yanyan Huang, Jinggeng Zhou, Guangyuan Xu, Taotao Wang, Libo Shan, Ping He
Plants have evolved two tiers of immune receptors to detect infections: cell surface-resident pattern recognition receptors (PRRs) that sense microbial signatures and intracellular nucleotide-binding domain leucine-rich repeat (NLR) proteins that recognize pathogen effectors. How PRRs and NLRs interconnect and activate the specific and overlapping plant immune responses remains elusive. A genetic screen for components controlling plant immunity identified ANXUR1 (ANX1), a malectin-like domain-containing receptor-like kinase, together with its homolog ANX2, as important negative regulators of both PRR- and NLR-mediated immunity in Arabidopsis thaliana...
November 17, 2017: Plant Cell
https://www.readbyqxmd.com/read/29150522/addressing-decisional-conflict-about-fertility-preservation-helping-young-female-cancer-survivors-family-planning-decisions
#4
Madleina Müller, Corinne Urech, Jacky Boivin, Verena Ehrbar, Rebecca Moffat, Rosanna Zanetti Daellenbach, Christoph Rochlitz, Sibil Tschudin
BACKGROUND: Health professionals are challenged by a growing number of young long-term cancer survivors with their specific needs with regard to family planning. This study aimed at assessing decisional conflict (DC) in young female cancer patients regarding fertility preservation, identifying demographic, fertility and fertility preservation related factors, which may affect DC, and assessing the helpfulness of various decision-supports. METHODS: A retrospective, cross-sectional, web-based survey via an online questionnaire available in three languages with specific items concerning cancer, fertility, fertility preservation and the validated Decisional Conflict Scale targeted at current or former female cancer patients aged 18-45 years, with cancer types or treatment potentially affecting reproductive function...
November 17, 2017: Journal of Family Planning and Reproductive Health Care
https://www.readbyqxmd.com/read/29150502/hyperthermophilic-carbamate-kinase-stability-and-anabolic-in-vitro-activity-at-alkaline-ph
#5
James E Hennessy, Melissa J Latter, Somayeh Fazelinejad, Amy Philbrook, Daniel M Bartkus, Hye-Kyung Kim, Hideki Onagi, John G Oakeshott, Colin Scott, Apostolos Alissandratos, Christopher J Easton
Carbamate kinases catalyze the conversion of carbamate to carbamoyl phosphate, which is readily transformed into other compounds. Carbamate forms spontaneously from ammonia and carbon dioxide in aqueous solutions, so the kinases have potential for sequestrative utilization of the latter compounds. Here, we compare seven carbamate kinases from mesophilic, thermophilic and hyperthermophilic sources. In addition to the known enzymes from Enterococcus faecalis and Pyrococcus furiosus, the previously unreported enzymes from the hyperthermophiles Thermococcus sibiricus and Thermococcus barophilus, the thermophiles Fervidobacterium nodosum and Thermosipho melanesiensis, and the mesophile Clostridium tetani, were all expressed recombinantly, each in high yield...
November 17, 2017: Applied and Environmental Microbiology
https://www.readbyqxmd.com/read/29150295/paternal-transmission-of-early-life-traumatization-through-epigenetics-do-fathers-play-a-role
#6
Enrique d'Harcourt Rowold, Lara Schulze, Sandra Van der Auwera, Hans Jörgen Grabe
Traumatizing events are known to have consequences for the victim which may lead to the development of several well-known mental disorders. Recent research has shown that traumatic events may affect not only the victims' lives, but also that of their progeny. It is generally accepted that this transmission of trauma occurs through parental behavior; however as has been recently discovered, the effects of trauma may also be inherited due to induced alterations in gene expression. These changes, so called epigenetic modifications, illuminate the interaction between genes and the environment...
November 2017: Medical Hypotheses
https://www.readbyqxmd.com/read/29150256/reproductive-effects-linked-to-dna-methylation-in-male-zebrafish-chronically-exposed-to-environmentally-relevant-concentrations-of-di-2-ethylhexyl-phthalate
#7
Yan-Bo Ma, Pan-Pan Jia, Muhammad Junaid, Li Yang, Chun-Jiao Lu, De-Sheng Pei
Di-(2-ethylhexyl) phthalate (DEHP) possesses the potential to interfere with the male reproductive endocrine system in mammals; however, its reproductive toxicity in male zebrafish and associated epigenetic studies have not been explored. In this study, three-month-old male zebrafish were exposed to environmentally relevant concentrations of DEHP (0, 10, 33 and 100 μg/L) for 3 months, and then the impact on the reproduction of males and the underlying mechanism were investigated. Histological testing showed that an exposure concentration of 100 μg/L DEHP significantly inhibited spermatogenesis, with an associated decline in capability to fertilize untreated oocytes...
November 14, 2017: Environmental Pollution
https://www.readbyqxmd.com/read/29150167/reproductive-factors-in-relation-to-heart-failure-in-women-a-systematic-review
#8
REVIEW
Renee Bolijn, N Charlotte Onland-Moret, Folkert W Asselbergs, Yvonne T van der Schouw
BACKGROUND: The biological mechanisms underlying the sex-related differences in risk of heart failure are still not well understood. The aim of this review was to provide an overview of the current evidence on the association between reproductive factors and risk of heart failure in women. METHODS: A systematic review of the literature was conducted. PubMed and Embase databases were searched for publications on the following reproductive factors as potential risk factors for heart failure in women: age at menarche, duration and frequency of the menstrual cycle, reproductive lifespan, use of contraception, polycystic ovarian syndrome (PCOS), pregnancy characteristics (e...
December 2017: Maturitas
https://www.readbyqxmd.com/read/29149713/adult-exposure-to-bisphenol-a-in-rare-minnow-gobiocypris-rarus-reduces-sperm-quality-with-disruption-of-testicular-aquaporins
#9
Yingying Zhang, Yongjing Guan, Ting Zhang, Cong Yuan, Yan Liu, Zaizhao Wang
Bisphenol A (BPA) is an endocrine disrupter which has adverse effects on male reproduction. Aquaporins (AQPs), well known water-selective channels, play important roles in spermatogenesis and sperm functions. However, whether AQPs participate in the process that BPA induces abnormal sperms has not been investigated to date. In the present study, adult male rare minnows Gobiocypris rarus were exposed to environmentally relevant concentrations BPA (15 and 225 μg/L) for 1, 2 and 3 weeks. Results showed that BPA exposure disrupted sperm motility, increased the percentage of abnormal sperm cells, and decreased sperm tolerance to hypotonic solution and sperm fertilization capacity...
November 8, 2017: Chemosphere
https://www.readbyqxmd.com/read/29149676/high-salt-diet-decreases-reproductive-performance-in-rams-and-down-regulates-gene-expression-of-some-components-of-the-renin-angiotensin-system-in-the-testis
#10
Yi Fang, Rongzhen Zhong, Xuezhao Sun, Daowei Zhou
Although salt-tolerant plants can be used to combat dryland salinity, these plants contain high concentrations of salt (NaCl), which may have deleterious effects if fed to livestock. Twenty-four Merino rams (9 mo of age) with similar body weight were equally allocated to two groups and fed a normal- or high-salt diet (0.5 and 12% NaCl, respectively) for 3 mo. Rams fed the high-salt diet had lower live weight gains, higher water intake, smaller testes (466 ± 48.4 vs 604 ± 51.1 g) and reductions (P <0...
November 10, 2017: Theriogenology
https://www.readbyqxmd.com/read/29149554/boron-dissolved-and-dust-atmospheric-inputs-to-a-forest-ecosystem-northeastern-france
#11
Philippe Roux, Marie Pierre Turpault, Gil Kirchen, Paul-Olivier Redon, Damien Lemarchand
Boron concentrations and isotopic compositions of atmospheric dust and dissolved depositions were monitored over a two-years period (2012-2013) in the forest ecosystem of Montiers (Northeastern France). This time series allows the determination of the boron atmospheric inputs to this forest ecosystem and contributes to refine our understanding of the sources and processes that control the boron atmospheric cycle. Mean annual dust and dissolved boron atmospheric depositions are comparable in size (13 g.ha-1...
November 17, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/29149484/comparative-analysis-of-proteomes-between-diabetic-and-normal-human-sperm-insights-into-the-effects-of-diabetes-on-male-reproduction-based-on-the-regulation-of-mitochondria-related-proteins
#12
Tian An, Yue-Fen Wang, Jia-Xian Liu, Yan-Yun Pan, Yu-Fei Liu, Zhong-Chen He, Fang-Fang Mo, Jun Li, Li-Hua Kang, Yu-Jie Gu, Bo-Han Lv, Si-Huan Gao, Guang-Jian Jiang
This study sought to identify sources of the reduced fertility of men with type 2 diabetes mellitus. Significant reductions in semen volume, sperm concentration, and total sperm count were observed in diabetic individuals, while transmission electron microscopy revealed that the structure of mitochondria in the tail of sperm from diabetic patients was damaged. Proteins potentially associated with these sperm defects were identified using proteomics. Isobaric tagging for relative and absolute quantitation labeling and high-performance liquid chromatography-tandem mass spectrometry allowed us to identify 357 proteins significantly differentially expressed in diabetic versus control semen (>1...
November 17, 2017: Molecular Reproduction and Development
https://www.readbyqxmd.com/read/29149327/focused-time-lapse-analysis-reveals-novel-aspects-of-human-fertilization-and-suggests-new-parameters-of-embryo-viability
#13
G Coticchio, M Mignini Renzini, P V Novara, M Lain, E De Ponti, D Turchi, R Fadini, M Dal Canto
STUDY QUESTION: Can focused application of time-lapse microscopy (TLM) lead to a more detailed map of the morphokinetics of human fertilization, revealing novel or neglected aspects of this process? SUMMARY ANSWER: Intensive harnessing of TLM reveals novel or previously poorly characterised phenomena of fertilization, such as a cytoplasmic wave (CW) preceding pronuclear formation and kinetics of pronuclear chromatin polarization, thereby suggesting novel non-invasive biomarkers of embryo quality...
November 15, 2017: Human Reproduction
https://www.readbyqxmd.com/read/29149296/comparative-transcriptomics-of-five-high-altitude-vertebrates-and-their-low-altitude-relatives
#14
Qianzi Tang, Yiren Gu, Xuming Zhou, Long Jin, Jiuqiang Guan, Rui Liu, Jing Li, Kereng Long, Shilin Tian, Tiandong Che, Silu Hu, Yan Liang, Xuemei Yang, Xuan Tao, Zhijun Zhong, Guosong Wang, Xiaohui Chen, Diyan Li, Jideng Ma, Xun Wang, Miaomiao Mai, An'an Jiang, Xiaolin Luo, Xuebin Lv, Vadim N Gladyshev, Xuewei Li, Mingzhou Li
Background: Species living at high altitude are subject to strong selective pressures due to inhospitable environments (e.g., hypoxia, low temperature, high solar radiation, and lack of biological production), making these species valuable models for comparative analyses of local adaptation. Studies that examined high-altitude adaptation identified a vast array of rapidly evolving genes that characterize the dramatic phenotypic changes in high-altitude animals. However, how high-altitude environment shapes gene expression programs remains largely unknown...
November 15, 2017: GigaScience
https://www.readbyqxmd.com/read/29149263/vitamin-d-and-assisted-reproductive-treatment-outcome-a-systematic-review-and-meta-analysis
#15
Justin Chu, Ioannis Gallos, Aurelio Tobias, Bee Tan, Abey Eapen, Arri Coomarasamy
STUDY QUESTION: Is serum vitamin D associated with live birth rates in women undergoing ART? SUMMARY ANSWER: Women undergoing ART who are replete in vitamin D have a higher live birth rate than women who are vitamin D deficient or insufficient. WHAT IS KNOWN ALREADY: Vitamin D deficiency has been associated with an increased risk of abnormal pregnancy implantation as well as obstetric complications such as pre-eclampsia and fetal growth restriction...
November 15, 2017: Human Reproduction
https://www.readbyqxmd.com/read/29149096/-fertility-preservation-in-the-oncology-patient
#16
REVIEW
Anibal Scarella Chamy, César Díaz-García, Sonia Herraiz, Jhenifer Kliemchen Rodrigues
In recent years, medical advances have substantially improved survival of cancer patients, generating growing concern about the quality of life of the survivors. Increased attention has been paid to reproductive problems after oncological treatments. International guidelines on fertility preservation in cancer patients require that healthcare teams discuss, as early as possible, the impact of cancer treatments on fertility and encourage access to fertility preservation techniques. The development of these techniques in women is a recent effort and many patients and health care providers are not familiar with their rapid expansion...
November 16, 2017: Medwave
https://www.readbyqxmd.com/read/29148981/walnut-leaf-extract-acts-as-a-fertility-agent-in-male-wistar-albino-rats-a-search-for-herbal-male-fertility-enhancer
#17
Seun F Akomolafe, Ganiyu Oboh
Background Walnut leaf is one of the many medicinal plants used in folklore as male fertility enhancers. The present work was therefore undertaken with an aim to scientifically validate this claim. As such, we evaluated the effect of the aqueous extract from walnut leaves on biomolecules related to fertility in adult male rats and its mode of action as fertility-enhancing agent. Methods Twenty-five rats were randomly divided into five groups of five animals each; Group 1 served as control and received normal (0...
November 17, 2017: Journal of Complementary & Integrative Medicine
https://www.readbyqxmd.com/read/29148879/a-multicenter-investigation-of-factors-influencing-women-s-participation-in-clinical-trials
#18
Samantha Myles, Cheryl Tocci, Michele Falk, Stephanie Lynch, Caroline Torres, Barbara Brown, Brandy Leopanto Firman, Marian Lake, Cynthia A Maser, Ameneh Onativia, Erin M Obermeier, Jennifer Macfarlan, Ronald Wapner, John C Smulian, Anita Kurt
OBJECTIVE: To identify factors that influence women's participation in clinical research. METHODS: We administered a survey in outpatient and inpatient populations of Obstetrics and Gynecology facilities of six institutions located in four states. The survey included questions regarding any of the participant's past experiences in clinical research and the factors that would influence their participation in clinical research. Analyses included descriptive statistics and a Principal Component Analysis...
November 17, 2017: Journal of Women's Health
https://www.readbyqxmd.com/read/29148792/proteomic-markers-of-the-functional-sperm-population-in-bovines-1-comparison-of-low-and-high-density-spermatozoa-following-cryopreservation
#19
Olivier D'Amours, Gilles Frenette, Sylvie Bourassa, Ezequiel Calvo, Patrick Blondin, Robert Sullivan
Mammalian semen contains a heterogeneous population of sperm cells. This heterogeneity results from variability in the complex processes of cell differentiation in the testis, biochemical modifications undergone by spermatozoa during transit along the male reproductive tract, interactions with secretions from accessory sex glands at ejaculation, and, in the context of reproductive technologies, in the ability of ejaculated spermatozoa to resist damage associated with freeze-thaw procedures. When submitted to density gradient centrifugation, ejaculated spermatozoa distribute themselves into two distinct populations: a low-density population characterized by low motility parameters, and a high-density population with high motility characteristics...
November 17, 2017: Journal of Proteome Research
https://www.readbyqxmd.com/read/29147953/impact-of-perfluorochemicals-on-human-health-and-reproduction-a-male-s-perspective
#20
REVIEW
C Foresta, S Tescari, A Di Nisio
Perfluoroalkyl compounds (PFCs) are a class of organic molecules used in industry and consumer products. PFCs are non-biodegradable and bioaccumulate in the environment and for these reasons they have been a major subject of research regarding their toxicity, environmental fate, and sources of human exposure, since they have been shown to induce severe health consequences, such as neonatal mortality, neurotoxicity and immunotoxicity. The aim of this review is to explore the existing knowledge of the interplay between PFCs exposure and human health, with a focus on male reproductive health, given the emerging gender differences in PFCs clearance and their interaction with sex hormones receptors...
November 17, 2017: Journal of Endocrinological Investigation
keyword
keyword
25818
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"