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https://www.readbyqxmd.com/read/28453406/crop-fertilisation-impacts-epidemics-and-optimal-latent-period-of-biotrophic-fungal-pathogens
#1
Pierre-Antoine Précigout, David Claessen, Corinne Robert
Crop pathogens are known to rapidly adapt to agricultural practices. Although cultivar resistance breakdown and resistance to pesticides have been broadly studied, little is known about the adaptation of crop pathogens to fertilization regimes and no epidemiological model has addressed that question. However this is a critical issue for developing sustainable low-input agriculture. In this paper, we use a model of life history evolution of biotrophic wheat fungal pathogens aiming to understand how they could adapt to changes in fertilization practices...
April 28, 2017: Phytopathology
https://www.readbyqxmd.com/read/28448277/long-term-consequences-of-obesity-on-female-fertility-and-the-health-of-the-offspring
#2
Suchitra Chandrasekaran, Genevieve Neal-Perry
PURPOSE OF REVIEW: Obesity has reached near epidemic levels among reproductive age women with a myriad of consequences. Obesity adversely affects the maternal milieu by creating conditions that decrease fertility and increase the risk of gestational diabetes, hypertensive disease in pregnancy, fetal growth abnormalities and congenital anomalies. The effects of obesity are not limited to pregnancy. Indeed, beyond the immediate postpartum period, obese women maintain a higher prevalence of insulin resistance and cardiovascular disease...
April 26, 2017: Current Opinion in Obstetrics & Gynecology
https://www.readbyqxmd.com/read/28447445/myomectomy-technique-and-current-indications
#3
Hajanirina Rakotomahenina, José Rajaonarison, Lufee Wong, Jean-Luc Brun
BACKGROUND: Uterine fibroids are the commonest benign tumor of the female genital tract. They affect a significant proportion of reproductive aged women and may cause excessive menstrual bleeding, pelvic pain or pressure, and adversely affect reproductive outcomes. However, many women remain asymptomatic. Fibroids are the first indication for hysterectomy, but myomectomy is the most suitable surgical option for women who desire preservation of their fertility potential. Only a selected group of women of childbearing age will benefit from a myomectomy, as the consequences of myomectomy on reproductive function have remained controversial...
April 26, 2017: Minerva Ginecologica
https://www.readbyqxmd.com/read/28447444/maternal-thyroid-function-in-women-undergoing-controlled-ovarian-hyperstimulation-during-in-vitro-fertilization-and-its-relation-to-reproductive-outcome
#4
Abdul K Abdul Karim, Muhammad Azrai Abu, Buvanes Chelliah, Zainul R Mohd Razi, Mohd H Omar, Hanita Othman, Zuraidah C Man
BACKGROUND: We conducted a study to evaluate the changes in thyroid function during Controlled Ovarian Hyperstimulation (COH) and its association with the outcome of assisted reproductive technique (ART). METHODS: This is a prospective cohort study done in University Hospital Fertility clinic for one year duration. A total of eighty eight euthyroid women who underwent COH as part of planned in vitro fertilization were invited to participate in this study. Serum thyroid function of each women will be monitored before stimulation (T1), day 10 -13 of cycle (T2), during oocyte retrieval (T3), one week following embryo transfer (T4) and at four weeks post embryo transfer(T5)...
April 26, 2017: Minerva Ginecologica
https://www.readbyqxmd.com/read/28445960/effect-of-folate-deficiency-on-promoter-methylation-and-gene-expression-of-esr1-cav1-and-elavl1-and-its-influence-on-spermatogenesis
#5
Hong-Fang Yuan, Kai Zhao, Yu Zang, Chun-Yan Liu, Zhi-Yong Hu, Jia-Jing Wei, Ting Zhou, Ying Li, Hui-Ping Zhang
This study aims to investigate the effect of folate deficiency on the male reproductive function and the underlying mechanism. A total of 269 screened participants from 421 recruitments were enrolled in this study. An animal model of folate deficiency was constructed. Folate concentration was measured in the ejaculate, and its association with semen parameters was then determined. The expression and promoter methylation status of ESR1, CAV1, and ELAVL1 were also evaluated. Results showed that seminal plasma folate level was significantly lower among subjects with azoospermia than those with normozoospermia...
April 11, 2017: Oncotarget
https://www.readbyqxmd.com/read/28444970/quality-of-life-of-immigrant-and-non-immigrant-infertile-patients-in-a-publicly-funded-in-vitro-fertilization-program-a-cross-sectional-study
#6
J Hasson, T Tulandi, T Shavit, T Shaulov, E Seccareccia, J Takefman
OBJECTIVE: To investigate whether there are differences in fertility quality of life (FertiQoL) and socio-demographic characteristics between immigrants and non-immigrant patients attending a government funded fertility program DESIGN: Cross-sectional study SETTING: McGill University reproductive center in Montreal, Canada, in a time when governmental funding for In-Vitro Fertilization (IVF) was provided to all residents POPULATION: All infertile patients, males and females, attending the center between March to July 2015...
April 26, 2017: BJOG: An International Journal of Obstetrics and Gynaecology
https://www.readbyqxmd.com/read/28444736/selective-progesterone-receptor-modulators-sprms-for-uterine-fibroids
#7
REVIEW
Ally Murji, Lucy Whitaker, Tiffany L Chow, Mara L Sobel
BACKGROUND: Uterine fibroids are smooth muscle tumours arising from the uterus. These tumours, although benign, are commonly associated with abnormal uterine bleeding, bulk symptoms and reproductive dysfunction. The importance of progesterone in fibroid pathogenesis supports selective progesterone receptor modulators (SPRMs) as effective treatment. Both biochemical and clinical evidence suggests that SPRMs may reduce fibroid growth and ameliorate symptoms. SPRMs can cause unique histological changes to the endometrium that are not related to cancer, are not precancerous and have been found to be benign and reversible...
April 26, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28444613/no-difference-in-congenital-anomalies-prevalence-irrespective-of-insemination-methods-and-freezing-procedure-cohort-study-over-fourteen-years-of-an-art-population-in-the-south-of-france
#8
Any Beltran Anzola, Vanessa Pauly, Debbie Montjean, Line Meddeb, Cendrine Geoffroy-Siraudin, Roland Sambuc, Pierre Boyer, Marie-José Gervoise-Boyer
PURPOSE: A retrospective cohort study was conducted to evaluate and compare the prevalence of congenital anomalies in babies and fetuses conceived after four procedures of assisted reproduction technologies (ART). METHODS: The prevalence of congenital anomalies was compared retrospectively between 2750 babies and fetuses conceived between 2001 and 2014 in vitro fertilization with standard insemination (IVF), IVF with intracytoplasmic sperm injection (ICSI), IVF with frozen embryo transfer (FET-IVF), and ICSI with frozen embryo transfer (FET-ICSI)...
March 23, 2017: Journal of Assisted Reproduction and Genetics
https://www.readbyqxmd.com/read/28444612/wbp2nl-pawp-mrna-and-protein-expression-in-sperm-cells-are-not-related-to-semen-parameters-fertilization-rate-or-reproductive-outcome
#9
T Freour, M Barragan, A Ferrer-Vaquer, A Rodríguez, Rita Vassena
PURPOSE: WBP2NL/PAWP, a protein found in the post-acrosomal region of mammalian spermatozoa, has been proposed as a sperm-borne oocyte-activating factor (SOAF) contributing to Ca(2+) release within the oocyte and subsequent fertilization and embryo development. However, its relevance as either a diagnostic or a prognostic marker of fertilization failure has been questioned in the recent literature. We analyzed WBP2NL/PAWP gene and protein expression level and localization in patients without previous intracytoplasmic sperm injection (ICSI) cycles in order to assess its association with both sperm characteristics and ability to fertilize...
March 21, 2017: Journal of Assisted Reproduction and Genetics
https://www.readbyqxmd.com/read/28442785/hunter-gatherer-social-networks-and-reproductive-success
#10
Abigail E Page, Nikhil Chaudhary, Sylvain Viguier, Mark Dyble, James Thompson, Daniel Smith, Gul D Salali, Ruth Mace, Andrea Bamberg Migliano
Individuals' centrality in their social network (who they and their social ties are connected to) has been associated with fertility, longevity, disease and information transmission in a range of taxa. Here, we present the first exploration in humans of the relationship between reproductive success and different measures of network centrality of 39 Agta and 38 BaYaka mothers. We collected three-meter contact ('proximity') networks and reproductive histories to test the prediction that individual centrality is positively associated with reproductive fitness (number of living offspring)...
April 25, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28442596/tissue-specific-transcriptomics-reveals-an-important-role-of-the-unfolded-protein-response-in-maintaining-fertility-upon-heat-stress-in-arabidopsis
#11
Shuang-Shuang Zhang, Hongxing Yang, Lan Ding, Ze-Ting Song, Hong Ma, Fang Chang, Jian-Xiang Liu
Elevated temperatures have a great impact on plant reproductive development and subsequent fruit and seed set, but the underlying molecular mechanisms are not well understood. We used transcriptome profiling to investigate the effect of heat stress on reproductive development of Arabidopsis (Arabidopsis thaliana) seedlings and observed distinct response patterns in vegetative vs. reproductive tissues. Exposure to heat stress affected reproductive developmental programs including early phases of anther/ovule development and meiosis, Also, genes participating in the unfolded protein response (UPR) were enriched in the reproductive tissue-specific genes that were up-regulated by heat...
April 24, 2017: Plant Cell
https://www.readbyqxmd.com/read/28442552/the-role-of-anticipated-decision-regret-and-the-patient-s-best-interest-in-sterilisation-and-medically-assisted-reproduction
#12
Heidi Mertes
There is a clear discrepancy in the way those who request medical assistance in pursuit of their reproductive choices are treated. On the one hand, women who request a sterilisation are urged to consider possible future regrets and are sometimes refused treatment in anticipation of such regrets. This is despite the fact that for all age ranges, the majority of women undergoing a sterilisation do not regret the decision. Moreover, women who are voluntarily childless are likely to have a happier and more gratifying life than parents...
May 2017: Journal of Medical Ethics
https://www.readbyqxmd.com/read/28441891/investigational-and-experimental-gnrh-analogs-and-associated-neurotransmitters
#13
Zeev Blumenfeld
The GnRH agonistic analogs enable for desensitizing the hypothalamo-pituitary-gonadal axis in malignant and benign conditions where minimizing the production of sex hormones, or blocking ovulation is necessary. The possible indications are prostate cancer, benign prostate hyperplasia, breast cancer, endometriosis, precocious puberty, uterine leiomyomata, assisted reproduction (ART)/in vitro fertilization (IVF), PCOS, minimizing the gonadotoxic effect of chemotherapy in young women, and possibly ovarian cancer...
April 25, 2017: Expert Opinion on Investigational Drugs
https://www.readbyqxmd.com/read/28441342/of-oestrogens-and-sperm-a-review-of-the-roles-of-oestrogens-and-oestrogen-receptors-in-male-reproduction
#14
REVIEW
Pavla Dostalova, Eva Zatecka, Katerina Dvorakova-Hortova
The crucial role that oestrogens play in male reproduction has been generally accepted; however, the exact mechanism of their action is not entirely clear and there is still much more to be clarified. The oestrogen response is mediated through oestrogen receptors, as well as classical oestrogen receptors' variants, and their specific co-expression plays a critical role. The importance of oestrogen signalling in male fertility is indicated by the adverse effects of selected oestrogen-like compounds, and their interaction with oestrogen receptors was proven to cause pathologies...
April 25, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28440588/endometrial-immune-markers-are-potential-predictors-of-normal-fertility-and-pregnancy-after-in-vitro-fertilization
#15
Louise Kofod, Anette Lindhard, Michael Bzorek, Jens Ole Eriksen, Lise Grupe Larsen, Thomas Vauvert F Hviid
PROBLEM: Elucidating immune mechanisms in the endometrium, which lead to the success of implantation and pregnancy, is important in reproductive medicine. Studies of immune cell abundance have shown conflicting results, and the expression and importance of HLA class Ib proteins in pre-implantation endometrium have not yet been investigated. METHOD OF STUDY: The study population consisted of four subgroups: a hydrosalpinx, a salpingectomy, an unexplained infertility, and a fertile control group...
April 25, 2017: American Journal of Reproductive Immunology: AJRI
https://www.readbyqxmd.com/read/28440264/use-of-testicular-sperm-for-intracytoplasmic-sperm-injection-in-men-with-high-sperm-dna-fragmentation-a-swot-analysis
#16
Sandro C Esteves, Matheus Roque, Nicolás Garrido
Spermatozoa retrieved from the testis of men with high levels of sperm DNA fragmentation (SDF) in the neat semen tend to have better DNA quality. Given the negative impact of SDF on the outcomes of Assisted Reproductive Technology (ART), an increased interest has emerged about the use of testicular sperm for intracytoplasmic sperm injection (Testi-ICSI). In this article, we used a SWOT (strengths, weaknesses, opportunities, and threats) analysis to summarize the advantages and drawbacks of this intervention...
April 18, 2017: Asian Journal of Andrology
https://www.readbyqxmd.com/read/28440109/the-demography-of-words-the-global-decline-in-non-numeric-fertility-preferences-1993-2011
#17
Margaret Frye, Lauren Bachan
This paper examines the decline in non-numeric responses to questions about fertility preferences among women in the developing world. These types of response-such as 'don't know' or 'it's up to God'-have often been interpreted through the lens of fertility transition theory as an indication that reproduction has not yet entered women's 'calculus of conscious choice'. However, this has yet to be investigated cross-nationally and over time. Using 19 years of data from 32 countries, we find that non-numeric fertility preferences decline most substantially in the early stages of a country's fertility transition...
April 25, 2017: Population Studies
https://www.readbyqxmd.com/read/28438852/the-use-of-proteomics-in-assisted-reproduction
#18
REVIEW
Ioanna Kosteria, Athanasios K Anagnostopoulos, Christina Kanaka-Gantenbein, George P Chrousos, George T Tsangaris
Despite the explosive increase in the use of Assisted Reproductive Technologies (ART) over the last 30 years, their success rates remain suboptimal. Proteomics is a rapidly-evolving technology-driven science that has already been widely applied in the exploration of human reproduction and fertility, providing useful insights into its physiology and leading to the identification of numerous proteins that may be potential biomarkers and/or treatment targets of a successful ART pregnancy. Here we present a brief overview of the techniques used in proteomic analyses and attempt a comprehensive presentation of recent data from mass spectrometry-based proteomic studies in humans, regarding all components of ARTs, including the male and female gamete, the derived zygote and embryo, the endometrium and, finally, the ART offspring both pre- and postnatally...
May 2017: In Vivo
https://www.readbyqxmd.com/read/28438120/transcriptomic-analysis-links-gene-expression-to-unilateral-pollen-pistil-reproductive-barriers
#19
Amanda K Broz, Rafael F Guerrero, April M Randle, You Soon Baek, Matthew W Hahn, Patricia A Bedinger
BACKGROUND: Unilateral incompatibility (UI) is an asymmetric reproductive barrier that unidirectionally prevents gene flow between species and/or populations. UI is characterized by a compatible interaction between partners in one direction, but in the reciprocal cross fertilization fails, generally due to pollen tube rejection by the pistil. Although UI has long been observed in crosses between different species, the underlying molecular mechanisms are only beginning to be characterized...
April 24, 2017: BMC Plant Biology
https://www.readbyqxmd.com/read/28437590/plant-dual-specificity-tyrosine-phosphorylation-regulated-kinase-optimizes-light-regulated-growth-and-development-in-arabidopsis
#20
Wen-Yu Huang, Yi-Chen Wu, Hsin-Yi Pu, Ying Wang, Geng-Jen Jang, Shu-Hsing Wu
Light controls vegetative and reproductive development of plants. For a plant, sensing the light input properly ensures coordination with the ever-changing environment. Previously, we found that LIGHT-REGULATED WD1 (LWD1) and LWD2 regulate the circadian clock and photoperiodic flowering. Here we identified Arabidopsis YET ANOTHER KINASE1 (AtYAK1), an evolutionarily conserved protein and a member of dual-specificity tyrosine phosphorylation-regulated kinases (DYRKs), as an interacting protein of LWDs. Our study revealed that AtYAK1 is an important regulator for various light responses, including the circadian clock, photomorphogenesis and reproductive development...
April 24, 2017: Plant, Cell & Environment
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