Varicocele--the most common cause of male factor infertility?

abstract：:During the elongating spermatid stage of spermiogenesis, human sperm chromatin undergoes a complex transition in which histones are extensively replaced by protamines in a carefully regulated transition including histone modifications and intermediate and temporary replacement of the histones by sperm-specific transit...

journal_title：Human reproduction update

authors： Carrell DT,Emery BR,Hammoud S

更新日期：2007-05-01 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：:Follicle stimulating hormone (FSH) is one of the two pituitary gonadotrophins involved in the regulation of gonadal function. Structurally, this gonadotrophin is a heterodimer composed of two non-covalently associated subunits containing several heterogenous oligosaccharide residues which play an important role in bot...

journal_title：Human reproduction update

authors： Ulloa-Aguirre A,Timossi C

更新日期：1998-05-01 00:00:00

abstract：:Insulin-like growth factor-1 (IGFBP-1) is particularly important in human female reproductive physiology, where it is involved with other factors in a complex system which regulates menstrual cycles, puberty, ovulation, decidualization, implantation and fetal growth. This has implications for clinical obstetrics and g...

journal_title：Human reproduction update

authors： Fowler DJ,Nicolaides KH,Miell JP

更新日期：2000-09-01 00:00:00

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：:We have examined aspects of the fine structure of the basal laminae associated with the luminal and glandular epithelium and small blood vessels in the human endometrium. Four short studies are presented and reviewed. Study 1 examined biopsies from 20 fertile women taken on days after the luteinizing hormone surge (LH...

journal_title：Human reproduction update

authors： Dockery P,Khalid J,Sarani SA,Bulut HE,Warren MA,Li TC,Cooke ID

更新日期：1998-09-01 00:00:00

abstract：:Following its benchmark discovery, nitric oxide (NO) is now known to play important functional roles in a variety of physiological systems. Within the vasculature, NO induces vasodilation, inhibits platelet aggregation, prevents neutrophil/platelet adhesion to endothelial cells, inhibits smooth muscle cell proliferati...

journal_title：Human reproduction update

authors： Rosselli M,Keller PJ,Dubey RK

更新日期：1998-01-01 00:00:00

abstract：BACKGROUND:Spermatogenesis culminates in production of one of the most highly differentiated cells in biology, the spermatozoon. The gametes that emerge from the testes are, however, functionally immature and only acquire full functionality once they have completed a process of post-testicular maturation in the epididy...

journal_title：Human reproduction update

authors： Dun MD,Aitken RJ,Nixon B

更新日期：2012-07-01 00:00:00

abstract：:Homocysteine, a product of the methionine cycle, is known to play an important role in cardiovascular diseases, neurological disorders and embryology, and in very important, fast growing fields concerning obstetrics and gynaecology. Therefore, we attempted an actual overview on possible obstetrical and gynaecological ...

journal_title：Human reproduction update

authors： Obwegeser R,Hohlagschwandtner M,Sinzinger H

更新日期：1999-01-01 00:00:00

abstract：:The improved long-term survival of adolescents and young women treated for cancer has resulted in an increased focus on the effects of chemotherapy on ovarian function and its preservation. These women may seek advice and treatment regarding their reproductive status, including ways of preserving their fertility and p...

journal_title：Human reproduction update

authors： Lutchman Singh K,Davies M,Chatterjee R

更新日期：2005-01-01 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:Mast cells (MCs) are the classical mediators of allergy, however, their importance in the development of innate and adaptive immune responses is increasingly being recognized. Herein, the present MC literature is summarized, with particular focus on studies of MCs in the endometrium and myometrium, and their...

journal_title：Human reproduction update

authors： Menzies FM,Shepherd MC,Nibbs RJ,Nelson SM

更新日期：2011-05-01 00:00:00

abstract：:Sperm transport from the cervix into the tube is an important uterine function within the process of reproduction. This function is exerted by uterine peristalsis and is controlled by the dominant ovarian structure via a cascade of endocrine events. The uterine peristaltic activity involves only the stratum subvascula...

journal_title：Human reproduction update

authors： Kunz G,Herbertz M,Noe M,Leyendecker G

更新日期：1998-09-01 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：:The results of the Transnational Study on Oral Contraceptives and the Health of Young Women studies are reviewed, potential biases shown, and new analyses are presented. The initial finding was a slight increase in the risk of venous thromboboembolism (VTE) when users of third generation OC (containing the progestins ...

journal_title：Human reproduction update

authors： Lewis MA

更新日期：1999-11-01 00:00:00

abstract：BACKGROUND:Although fertility preservation (FP) treatment options have increased, the existing evidence suggests that many women with cancer do not feel well supported in making these decisions, but find them stressful and complex and fail to take up fertility care at this crucial time. Whilst existing reviews have all...

journal_title：Human reproduction update

authors： Jones G,Hughes J,Mahmoodi N,Smith E,Skull J,Ledger W

更新日期：2017-07-01 00:00:00

abstract：BACKGROUND:Human pregnancy requires robust hemostasis to prevent hemorrhage during extravillous trophoblast (EVT) invasion of the decidualized endometrium, modification of spiral arteries and post-partum processes. However, decidual hemorrhage (abruption) can occur throughout pregnancy from poorly transformed spiral ar...

journal_title：Human reproduction update

authors： Schatz F,Guzeloglu-Kayisli O,Arlier S,Kayisli UA,Lockwood CJ

更新日期：2016-06-01 00:00:00

abstract：:In 1987, Nigel Harris cautioned against over-diagnosing the antiphospholipid syndrome (APS). In what was a rather prophetic editorial titled 'The Syndrome of the Black Swan', he suggested that while patients with APS do indeed exist, they are probably much more unusual than many medical professionals might like to bel...

journal_title：Human reproduction update

authors： Clark CA,Laskin CA,Spitzer KA

更新日期：2012-09-01 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：:It has long been known that the testis is an immunologically privileged site in the body, and that human seminal plasma possesses a generalized immunosuppressive activity. Multiple factors participate in the establishment of immunotolerance in the testis: the blood-tubular barrier; the local production of immunosuppre...

journal_title：Human reproduction update

authors： Filippini A,Riccioli A,Padula F,Lauretti P,D'Alessio A,De Cesaris P,Gandini L,Lenzi A,Ziparo E

更新日期：2001-09-01 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：:At present, the management of non-organ confined prostate cancer, whether it is a recurrence or metastasis, continues to evolve based on prostate cancer detection using prostate-specific antigen and the development of medications as alternatives for the classical orchiectomy, which induced irreversible implications fo...

journal_title：Human reproduction update

authors： d'Ancona FC,Debruyne FM

更新日期：2005-05-01 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:It has been hypothesized that certain obstetrical populations, including women who conceive using assisted reproductive technologies (ART) and women with multiple births, may be at increased risk for postpartum depression. In this systematic literature review, we examine the published evidence for this hypot...

journal_title：Human reproduction update

authors： Ross LE,McQueen K,Vigod S,Dennis CL

更新日期：2011-01-01 00:00:00

abstract：BACKGROUND:Preimplantation embryos are particularly susceptible to in vitro developmental blocks. These could be alleviated by lowering culture medium osmolarity. Because mammalian cells regulate their volumes by adjusting intracellular osmotic pressure, cell volume regulation could be critical to early embryos. METHO...

journal_title：Human reproduction update

authors： Baltz JM,Tartia AP

更新日期：2010-03-01 00:00:00

abstract：BACKGROUND:Transfer of more than a single embryo in an IVF cycle comes with the finite possibility of a multiple gestation. Even a twin pregnancy confers significant risk to both mother and babies. The move to single-embryo transfer for all patients will be greatly facilitated by the ability to quantify embryo viabilit...

journal_title：Human reproduction update

authors： Gardner DK,Meseguer M,Rubio C,Treff NR

更新日期：2015-11-01 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：:Contraception is one of the keystones of reproductive health. The availability of effective contraception has helped to change dramatically the structure of the world's population during the last 50 years, through a demographic transition involving lower fertility rates and longer survival. As the transition evolves m...

journal_title：Human reproduction update

authors： ESHRE Capri Workshop Group.

更新日期：2005-09-01 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：: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