The role of the endocannabinoid system in gametogenesis, implantation and early pregnancy.

abstract：BACKGROUND:Because of the substantial energy demands of reproduction, the brain must temper the fertility of individuals to match nutritional availability. Under-nutrition is associated with infertility in humans and animals. The brain uses adipose- and gut-derived hormones, such as leptin, insulin and ghrelin, to modu...

journal_title：Human reproduction update

authors： Evans JJ,Anderson GM

更新日期：2012-05-01 00:00:00

abstract：:Syncytin is a membrane protein derived from the envelope gene of an endogenous retrovirus of the HERV-W family. The gene appears to be almost exclusively expressed in placenta; the protein was found in particular in syncytiotrophoblast. After transfection into various cell types it has proven to be a very fusogenic pr...

journal_title：Human reproduction update

authors： Pötgens AJ,Drewlo S,Kokozidou M,Kaufmann P

更新日期：2004-11-01 00:00:00

abstract：:Mammalian oocytes begin meiosis in the fetal ovary, but only complete it when fertilized in the adult reproductive tract. This review examines the cell biology of this protracted process: from entry of primordial germ cells into meiosis to conception. The defining feature of meiosis is two consecutive cell divisions (...

journal_title：Human reproduction update

authors： Jones KT

更新日期：2008-03-01 00:00:00

abstract：:The effects on reproductive tract development in male rats, of neonatal exposure to potent (reference) oestrogens, diethylstilboestrol (DES) and ethinyl oestradiol (EE), with those of two environmental oestrogens, octylphenol and hisphenol A were systematically compared. Other treatments, such as administration of a g...

journal_title：Human reproduction update

authors： Williams K,McKinnell C,Saunders PT,Walker M,Fisher JS,Turner KJ,Atanassova N,Sharpe M

更新日期：2001-05-01 00:00:00

abstract：:This paper investigates the relationship of features of in-vitro fertilization (IVF) embryos and the associated oocyte and follicle to the outcome of transfer. It differs from previous studies in including a range of features (n = 53) and in using class probability tree analysis. This is a non-parametric multivariate ...

journal_title：Human reproduction update

authors： Saith RR,Srinivasan A,Michie D,Sargent IL

更新日期：1998-03-01 00:00:00

abstract：:In those clinical situations in which an immediate and profound suppression of gonadotrophins is desired, LHRH agonists have the disadvantage of producing an initial stimulatory effect on hormone secretion. Therefore, the use of GnRH antagonists which cause an immediate and dose-related inhibition of LH and FSH by com...

journal_title：Human reproduction update

authors： Reissmann T,Schally AV,Bouchard P,Riethmiiller H,Engel J

更新日期：2000-07-01 00:00:00

abstract：:Nitric oxide (NO) is an important mediator of paracrine interactions, especially within the vascular system. It is a powerful inhibitor of platelet aggregation and a potent vasodilator. NO is also a neurotransmitter and it plays a role in cell-mediated cytotoxicity. NO-generating enzymes (nitric oxide synthases, NOS) ...

journal_title：Human reproduction update

authors： Cameron IT,Campbell S

更新日期：1998-09-01 00:00:00

abstract：:The number of cell divisions during embryonic and fetal life makes the embryo/fetus particularly vulnerable to effects resulting from exposure to an adverse intrauterine environment. Exposure to drugs and irradiation at this stage of development are able to cause congenital malformations and various cancers in later l...

journal_title：Human reproduction update

authors： Petry CJ,Hales CN

更新日期：2000-11-01 00:00:00

abstract：:In the male genital tract, reactive oxygen species (ROS) are generated by spermatozoa and leukocytes including neutrophils and macrophages. ROS are involved in the regulation of sperm functions such as capacitation and the acrosome reaction. Infections lead to an excessive ROS production, resulting in an 'oxidative bu...

journal_title：Human reproduction update

authors： Ochsendorf FR

更新日期：1999-09-01 00:00:00

abstract：:Gestational surrogacy is a treatment option available to women with certain clearly defined medical problems, usually an absent uterus, to help them have their own genetic children. IVF allows the creation of embryos from the gametes of the commissioning couple and subsequent transfer of these embryos to the uterus of...

journal_title：Human reproduction update

authors： Brinsden PR

更新日期：2003-09-01 00:00:00

abstract：BACKGROUND:The prevalence of congenital uterine anomalies in high-risk women is unclear, as several different diagnostic approaches have been applied to different groups of patients. This review aims to evaluate the prevalence of such anomalies in unselected populations and in women with infertility, including those un...

journal_title：Human reproduction update

authors： Chan YY,Jayaprakasan K,Zamora J,Thornton JG,Raine-Fenning N,Coomarasamy A

更新日期：2011-11-01 00:00:00

abstract：:Great progress had been achieved during the last 20 years in the field of ovulation induction in patients with polycystic ovary syndrome (PCOS). Clomiphene citrate remains the first line of treatment for all anovulatory women with PCOS, since in properly selected patients the cumulative pregnancy rate approaches that ...

journal_title：Human reproduction update

authors： Messinis IE,Milingos SD

更新日期：1997-05-01 00:00:00

abstract：BACKGROUND:Androgens, FSH, anti-Müllerian hormone (AMH) and estradiol (E2) are essential in human ovarian folliculogenesis. However, the interactions between these four players is not fully understood. OBJECTIVES AND RATIONALE:The purpose of this review is to highlight the chronological sequence of the appearance and ...

journal_title：Human reproduction update

authors： Dewailly D,Robin G,Peigne M,Decanter C,Pigny P,Catteau-Jonard S

更新日期：2016-11-01 00:00:00

abstract：BACKGROUND:Infertility affects ∼7% of all men. Despite much progress, mainly in genetics, its etiology remains obscure in ∼50% of cases. To fill this gap, imaging of the male genital tract (MGT) has progressively expanded, providing useful information in the assessment of MGT abnormalities. METHODS:A critical, systema...

journal_title：Human reproduction update

authors： Lotti F,Maggi M

更新日期：2015-01-01 00:00:00

abstract：:Insulin plays a central role in human pregnancy. Maternal insulin sensitivity decreases with advancing gestation in order to provide glucose and possibly other nutrients for feto-placental growth and energy needs. Moreover, alterations of insulin metabolism are clearly involved in the development of gestational diabet...

journal_title：Human reproduction update

authors： Ciampelli M,Lanzone A,Caruso A

更新日期：1998-11-01 00:00:00

abstract：BACKGROUND:Estrogens are known to orchestrate reproductive events and to regulate the immune system during infections and following tissue damage. Recent findings suggest that, in the absence of any danger signal, estrogens trigger the physiological expansion and functional specialization of macrophages, which are immu...

journal_title：Human reproduction update

authors： Pepe G,Locati M,Della Torre S,Mornata F,Cignarella A,Maggi A,Vegeto E

更新日期：2018-11-01 00:00:00

abstract：BACKGROUND:Despite great advances in assisted reproductive technology, poor ovarian response (POR) is still considered as one of the most challenging tasks in reproductive medicine. OBJECTIVE AND RATIONALE:The aim of this systemic review is to evaluate the role of different adjuvant treatment strategies on the probabi...

journal_title：Human reproduction update

authors： Zhang Y,Zhang C,Shu J,Guo J,Chang HM,Leung PCK,Sheng JZ,Huang H

更新日期：2020-02-28 00:00:00

abstract：BACKGROUND:Important roles for G-protein-coupled receptors (GPCRs) have been identified in the maternal physiological adaptations to pregnancy and in the pathogenesis of preeclampsia. On this basis, GPCRs are potential therapeutic targets for preeclampsia. OBJECTIVES AND RATIONALE:In this review, vasopressin and apeli...

journal_title：Human reproduction update

authors： Conrad KP

更新日期：2016-09-01 00:00:00

abstract：:The human ovary is a dynamic organ which continually changes in size and activity through life, as an integral part of the changes that the female is going through before during and after her reproductive life. Following the rapid increase in the use of transvaginal scan in recent years, the measurement of ovarian vol...

journal_title：Human reproduction update

authors： Lass A,Brinsden P

更新日期：1999-05-01 00:00:00

abstract：:Cancer treatment modalities are increasingly more effective in achieving complete remission and cure. Aggressive chemotherapy and radiotherapy, as well as bone marrow transplantation, results in >90% cure in many cancers of children and young women. As a result of this success however, a new problem has arisen. Many y...

journal_title：Human reproduction update

authors： Oktay K

更新日期：2001-11-01 00:00:00

abstract：BACKGROUND:Human long non-coding RNAs (lncRNAs) are an emerging category of transcripts with increasingly documented functional roles during development. LncRNAs and roles during human early embryo development have recently begun to be unravelled. OBJECTIVE AND RATIONALE:This review summarizes the most recent knowledg...

journal_title：Human reproduction update

authors： Bouckenheimer J,Assou S,Riquier S,Hou C,Philippe N,Sansac C,Lavabre-Bertrand T,Commes T,Lemaître JM,Boureux A,De Vos J

更新日期：2016-12-01 00:00:00

abstract：:Prior to the development of high-throughput methods for the analysis of differential gene expression, genes required for proper ovarian function were identified on a case-by-case basis. Recently, however, several techniques have been developed that enable investigators to study large-scale changes in gene expression u...

journal_title：Human reproduction update

authors： Hennebold JD

更新日期：2004-05-01 00:00:00

abstract：:Amenorrhoea associated with reduced caloric intake and strenuous exercise leads to hypoestrogenism and is associated with clinical manifestations that include disordered eating, stress fractures, osteoporosis, and, as recently reported, a potential increase in the risk of premature cardiovascular disease. Disordered e...

journal_title：Human reproduction update

authors： De Souza MJ,Williams NI

更新日期：2004-09-01 00:00:00

abstract：BACKGROUND:Clinical trials yield discrepant information about the impact of hormone therapy on verbal memory and executive function. This issue is clinically relevant because declines in verbal memory are the earliest predictor of Alzheimer's disease and declines in executive function are central to some theories of no...

journal_title：Human reproduction update

authors： Maki PM,Sundermann E

更新日期：2009-11-01 00:00:00

abstract：BACKGROUND:Ovarian hyperstimulation syndrome (OHSS) typically occurs when ovaries are primed with FSH/LH and subsequently exposed to hCG. The ultimate pathophysiological step underlying this clinical picture is increased vascular permeability (VP). METHODS:A search of the literature was carried out using PubMed and th...

journal_title：Human reproduction update

authors： Soares SR,Gómez R,Simón C,García-Velasco JA,Pellicer A

更新日期：2008-07-01 00:00:00

abstract：BACKGROUND:The Fifth Evian Annual Reproduction (EVAR) Workshop Meeting discussed knowledge regarding contemporary genetics in female reproduction. METHODS:Specialist reproductive medicine clinicians and geneticists delivered presentations based on published literature and current research. The content of this report i...

journal_title：Human reproduction update

authors： Evian Annual Reproduction (EVAR) Workshop Group 2010.,Fauser BC,Diedrich K,Bouchard P,Domínguez F,Matzuk M,Franks S,Hamamah S,Simón C,Devroey P,Ezcurra D,Howles CM

更新日期：2011-11-01 00:00:00

abstract：:From a public health viewpoint, the intrauterine device (IUD) is the most widely used contraceptive method in the world. Prevalence rates range among countries from 2 to 80% of contraceptive users. During 5 years of IUD use, pregnancy occurs in less than 2 per 100 insertions. Bleeding and pain are the most common reas...

journal_title：Human reproduction update

authors： ESHRE Capri Workshop Group.

更新日期：2008-05-01 00:00:00

abstract：:Androgen levels are measured in today's clinical practice almost exclusively by immunoassays. The androgen that is most frequently determined is testosterone (T), but sometimes also the levels of other testicular, ovarian and adrenal androgens such as 5alpha-dihydrotestosterone, androstenedione, dehydroepiandrosterone...

journal_title：Human reproduction update

authors： Roy P,Alevizaki M,Huhtaniemi I

更新日期：2008-01-01 00:00:00

abstract：:The examination of fetal cells, specifically erythroblasts, and cell-free fetal DNA from the blood of pregnant women is currently the subject of intense research with the aim of developing new risk-free methods for prenatal diagnosis. An unexpected finding made during these studies was that the traffic of fetal erythr...

journal_title：Human reproduction update

authors： Hahn S,Holzgreve W

更新日期：2002-11-01 00:00:00

abstract：:This review presents detailed risk estimates from relevant epidemiological and other studies on the comparative safety of second and third generation oral contraceptives (OC). Written with the intention of presenting a repository of the available information, it also discourses briefly into the symptomatology and diag...

journal_title：Human reproduction update

authors： Edwards RG,Cohen J

更新日期：1999-11-01 00:00:00