Sperm impairing microbial factor: potential candidate for male contraception.

abstract：PURPOSE:To investigate the associations between blastocyst development and the sex ratio (male:female) among singleton live births resulting from single-blastocyst frozen embryo transfer (FET) cycles. METHODS:Patients with singleton live births following the first autologous single FET of non- preimplantation genetic ...

journal_title：Reproductive biology and endocrinology : RB&E

authors： Lou H,Li N,Zhang X,Sun L,Wang X,Hao D,Cui S

更新日期：2020-07-15 00:00:00

abstract：BACKGROUND:Mares have an annual reproductive rhythm, with a phase of inactivity in midwinter. The aim of this study was to determine the impact of food restriction on physiological and metabolic hallmarks of this rhythm. METHODS:Over three successive years, 3 groups of 10 mares were kept under natural photoperiod. A '...

journal_title：Reproductive biology and endocrinology : RB&E

authors： Salazar-Ortiz J,Camous S,Briant C,Lardic L,Chesneau D,Guillaume D

更新日期：2011-09-29 00:00:00

abstract：BACKGROUND:We demonstrated that E2 conjugated to BSA (E2BSA) induces a rapid membrane-initiated inhibition of LH secretion followed hours later by a slight increase in LH secretion. Whether these actions of E2BSA are restricted to the pituitary gland and whether the membrane-initiated pathway of E2BSA contributes to th...

journal_title：Reproductive biology and endocrinology : RB&E

authors： Arreguin-Arevalo JA,Ashley RL,Wagenmaker ER,Oakley AE,Karsch FJ,Nett TM

更新日期：2010-05-10 00:00:00

abstract：BACKGROUND:Turkey reproduction is by artificial insemination using pooled semen so there is interest in storing semen. Fertilizing capacity declines after six hours storage, possibly due to poor sperm mobility. Prostaglandins (PG) affect mammalian sperm motility, but avian sperm has not been widely studied. For this st...

journal_title：Reproductive biology and endocrinology : RB&E

authors： Kennedy JH,Korn N,Thurston RJ

更新日期：2003-10-09 00:00:00

abstract：BACKGROUND:Macrophage migration inhibitory factor (MIF) has special pro-inflammatory roles, affecting the functions of macrophages and lymphocytes and counter-regulating the effects of glucocorticoids on the immune response. The conspicuous expression of MIF during human implantation and early embryonic development als...

journal_title：Reproductive biology and endocrinology : RB&E

authors： Faria MR,Hoshida MS,Ferro EA,Ietta F,Paulesu L,Bevilacqua E

更新日期：2010-08-04 00:00:00

abstract：BACKGROUND:Progesterone plays an important role in the proliferation and differentiation of human endometrial cells (hECs). Large-dose treatment with progesterone has been used for treatment of endometrial proliferative disorders. However, the mechanisms behind remain unknown. METHODS:To investigate the role of cyclin...

journal_title：Reproductive biology and endocrinology : RB&E

authors： Tang L,Zhang Y,Pan H,Luo Q,Zhu XM,Dong MY,Leung PC,Sheng JZ,Huang HF

更新日期：2009-12-07 00:00:00

abstract：BACKGROUND:We characterized the spectrum and etiology of hypogonadism in a cohort of Prader-Willi syndrome (PWS) adolescents and adults. METHODS:Reproductive hormonal profiles and physical examination were performed on 19 males and 16 females ages 16-34 years with PWS. Gonadotropins, sex-steroids, inhibin B (INB) and ...

journal_title：Reproductive biology and endocrinology : RB&E

authors： Gross-Tsur V,Hirsch HJ,Benarroch F,Eldar-Geva T

更新日期：2012-05-06 00:00:00

abstract：BACKGROUND:With infertility populations rapidly aging, treatments improving pregnancy chances assume increasing clinical importance. Dehydroepiandrosterone (DHEA) has been reported to improve pregnancy rates and lower miscarriage rates in women with diminished ovarian function. This study was planned to evaluate whethe...

journal_title：Reproductive biology and endocrinology : RB&E

authors： Tartagni M,Cicinelli MV,Baldini D,Tartagni MV,Alrasheed H,DeSalvia MA,Loverro G,Montagnani M

更新日期：2015-03-09 00:00:00

abstract：:Sexual health is strictly related with general health in both genders. In presence of a sexual dysfunction, the expert in sexual medicine aims to discover the specific weight of the physical and psychological factors can cause or con-cause the sexual problem. At the same time, a sexual dysfunction can represent a mark...

journal_title：Reproductive biology and endocrinology : RB&E

authors： Mollaioli D,Ciocca G,Limoncin E,Di Sante S,Gravina GL,Carosa E,Lenzi A,Jannini EAF

更新日期：2020-02-17 00:00:00

abstract：OBJECTIVES:To report the occurrence of a rare case of a huge benign ovarian tumour (mucinous cystadenoma) in Jazan city, Saudi Arabia. PATIENTS:Our reported case was a middle-aged Saudi woman presented with marked abdominal distension and discomfort at the gynaecology clinic of Jazan General Hospital, Jazan city, Saud...

journal_title：Reproductive biology and endocrinology : RB&E

authors： Kamel RM

更新日期：2010-03-11 00:00:00

abstract：BACKGROUND:Serum leptin levels are augmented in obese infertile men and in men with azoospermia. They also correlate inversely with sperm concentration, motility and normal forms. The mechanisms underlying the adverse effects of excess leptin on male reproductive function remain unclear. The present study aimed to eval...

journal_title：Reproductive biology and endocrinology : RB&E

authors： Wang X,Zhang X,Hu L,Li H

更新日期：2018-05-31 00:00:00

abstract：BACKGROUND:In natural cycles, women conceive when intercourse takes place during a six-day period ending on the day of ovulation. The current practice in intrauterine insemination (IUI) cycles is to perform the IUI 24-36 hours after the hCG administration, when the ovulation is already imminent. In this study hCG was a...

journal_title：Reproductive biology and endocrinology : RB&E

authors： Järvelä IY,Tapanainen JS,Martikainen H

更新日期：2010-02-23 00:00:00

abstract：:Chemokines are small molecular weight peptides responsible for adhesion, activation, and recruitment of leukocytes into tissues. Leukocytes are thought to influence follicular atresia, ovulation, and luteal function. Many studies in recent years have focused attention on the characterization of leukocyte populations w...

journal_title：Reproductive biology and endocrinology : RB&E

authors： Townson DH,Liptak AR

更新日期：2003-11-10 00:00:00

abstract：BACKGROUND:Morphometric and morphokinetic evaluation of in vitro cultured human embryos allows evaluation without time restriction and reduces intra- and inter-observer variability. Even though these technologies have been reported to improve the quality of cleavage stage embryo evaluation during fresh culture, possibl...

journal_title：Reproductive biology and endocrinology : RB&E

authors： Fernandez Gallardo E,Spiessens C,D'Hooghe T,Debrock S

更新日期：2017-10-03 00:00:00

abstract：BACKGROUND:Ovarian follicle growth and maturation requires extensive communication between follicular somatic cells and oocytes. Recently, intercellular cell communication was described involving cell-secreted vesicles called exosomes (50-150 nm), which contain miRNAs and protein, and have been identified in ovarian fo...

journal_title：Reproductive biology and endocrinology : RB&E

authors： da Silveira JC,Carnevale EM,Winger QA,Bouma GJ

更新日期：2014-05-26 00:00:00

abstract：BACKGROUND:To evaluate the association between leukocytes (polymorphonuclear granulocytes -PMNL) and semen parameters at different leukocyte concentrations. METHODS:This was a retrospective clinical study at a university hospital andrology clinic. Semen samples from infertile men were analyzed for sperm morphology and...

journal_title：Reproductive biology and endocrinology : RB&E

authors： Lackner JE,Agarwal A,Mahfouz R,du Plessis SS,Schatzl G

更新日期：2010-02-05 00:00:00

abstract：BACKGROUND:The study was designed to test the hypothesis that granulosa cell (GC) gene expression response differs between recombinant FSH and human menopausal gonadotropin (hMG) stimulation regimens. METHODS:Females < 35 years-old undergoing IVF for tubal or male factor infertility were prospectively randomized to on...

journal_title：Reproductive biology and endocrinology : RB&E

authors： Brannian J,Eyster K,Mueller BA,Bietz MG,Hansen K

更新日期：2010-03-12 00:00:00

abstract：BACKGROUND:The placenta is an essential organ that provides nutrients and oxygen to the developing fetus and removes toxic waste products from the fetal circulation. Maintaining placental blood osmotic pressure and blood flow is crucial for viable offspring. The renin-angiotensin system (RAS) in the placenta is a key p...

journal_title：Reproductive biology and endocrinology : RB&E

authors： Vaswani K,Chan HW,Verma P,Dekker Nitert M,Peiris HN,Wood-Bradley RJ,Armitage JA,Rice GE,Mitchell MD

更新日期：2015-08-12 00:00:00

abstract：BACKGROUND:The alterations of the glutathione peroxidase enzyme complex system occur in physiological conditions such as aging and oxidative stress consequent to strenuous exercise. METHODS:Authors optimize the spectrophotometric method to measure glutathione peroxidase activity in rat red blood cell membranes. RESUL...

journal_title：Reproductive biology and endocrinology : RB&E

authors： Gallo G,Martino G

更新日期：2009-01-26 00:00:00

abstract：BACKGROUND:To examine the effects of IVF, ICSI and FET, as well as in vitro culture, on the safety of offspring, this study was conducted from the perspective of genetic imprinting to investigate whether assisted reproductive technology would influence the parental and maternal imprinting genes. METHODS:Eighteen foetu...

journal_title：Reproductive biology and endocrinology : RB&E

authors： Ji M,Wang X,Wu W,Guan Y,Liu J,Wang J,Liu W,Shen C

更新日期：2018-07-05 00:00:00

abstract：BACKGROUND:The objective was to determine the effect of prepartum diets supplemented with rolled canola seed (high in oleic acid) or sunflower seed (high in linoleic acid) on luteinizing hormone (LH) pulsatility and gonadotropin releasing hormone (GnRH)-induced LH release during early postpartum. METHODS:Thirty-one pr...

journal_title：Reproductive biology and endocrinology : RB&E

authors： Salehi R,Colazo MG,Oba M,Ambrose DJ

更新日期：2015-07-03 00:00:00

abstract：BACKGROUND:The overall prevalence of infertility was estimated to be 3.5-16.7% in developing countries and 6.9-9.3% in developed countries. Furthermore, according to reports from some regions of sub-Saharan Africa, the prevalence rate is 30-40%. The consequences of infertility and how it affects the lives of women in p...

journal_title：Reproductive biology and endocrinology : RB&E

authors： Bahamondes L,Makuch MY

更新日期：2014-09-08 00:00:00

abstract：BACKGROUND:Density gradient is the preferred technique for sperm processing for ART. However, no study has examined sperm quality using different processing media simultaneously and under identical conditions. Therefore, we evaluated semen quality following sperm preparation by three commonly used commercially availabl...

journal_title：Reproductive biology and endocrinology : RB&E

authors： Malvezzi H,Sharma R,Agarwal A,Abuzenadah AM,Abu-Elmagd M

更新日期：2014-12-02 00:00:00

abstract：BACKGROUND:Age at menarche is the reflection of cumulative pre-adolescent exposure of girls to either adverse environment such as food insecurity or affluent living conditions. Food insecurity could result in inadequate nutrient intake and stress, both of which are hypothesized to have opposing effects on the timing of...

journal_title：Reproductive biology and endocrinology : RB&E

authors： Belachew T,Hadley C,Lindstrom D,Getachew Y,Duchateau L,Kolsteren P

更新日期：2011-09-13 00:00:00

abstract：:Gonadotropins extracted from the urine of post-menopausal women have traditionally been used to stimulate folliculogenesis in the treatment of infertility and in assisted reproductive technology (ART). Products, such as human menopausal gonadotropin (hMG), consist not only of a mixture of the hormones, follicle-stimul...

journal_title：Reproductive biology and endocrinology : RB&E

authors： Ezcurra D,Humaidan P

更新日期：2014-10-03 00:00:00

abstract：BACKGROUND:Matrix metalloproteinase 2 (MMP-2) has been reported to be an important regulator of cell migration and invasion through degradation of the extracellular matrix (ECM) in many diseases, such as cancer and endometriosis. Here, we found calcium-activated neutral protease 7 (CAPN 7) expression was markedly upreg...

journal_title：Reproductive biology and endocrinology : RB&E

authors： Liu H,Jiang Y,Jin X,Zhu L,Shen X,Zhang Q,Wang B,Wang J,Hu Y,Yan G,Sun H

更新日期：2013-07-15 00:00:00

abstract：BACKGROUND:The aim of this study was to evaluate the effects of vitrification on morpho-functional parameters (blastomere/chromatin integrity and bioenergy/oxidative potential) of mouse preimplantation embryos. METHODS:In vivo produced mouse (4/16-cell, morulae and blastocyst-stage) embryos were randomly divided into ...

journal_title：Reproductive biology and endocrinology : RB&E

authors： Martino NA,Dell'aquila ME,Cardone RA,Somoskoi B,Lacalandra GM,Cseh S

更新日期：2013-04-03 00:00:00

abstract：:The endometrium undergoes cyclic remodelling throughout the menstrual cycle in preparation for embryo implantation which occurs in a short window during the mid-secretory phase. It is during this short 'receptive window' that the endometrial luminal epithelium acquires adhesive capacity permitting blastocysts firm adh...

journal_title：Reproductive biology and endocrinology : RB&E

authors： Santos LL,Ling CK,Dimitriadis E

更新日期：2020-12-14 00:00:00

abstract：BACKGROUND:Pregnant women have high serum concentrations of sex steroid hormones, which are major regulators of paracrine and autocrine responses for many maternal and placental functions. The main purpose of this study was to compare patients with preeclampsia and patients with uncomplicated pregnancies in terms of se...

journal_title：Reproductive biology and endocrinology : RB&E

authors： Lan KC,Lai YJ,Cheng HH,Tsai NC,Su YT,Tsai CC,Hsu TY

更新日期：2020-02-18 00:00:00

abstract：:Polycystic ovary syndrome (PCOS) is a common endocrine disorder, affecting 9-18% of women in reproductive age that causes hyperandrogenism and infertility due to dysfunctional follicular maturation and anovulation. The etiology of PCOS is still poorly known, and information from experimental animal models may help imp...

journal_title：Reproductive biology and endocrinology : RB&E

authors： Paixão L,Ramos RB,Lavarda A,Morsh DM,Spritzer PM

更新日期：2017-02-10 00:00:00