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Subfertility

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https://www.readbyqxmd.com/read/27932550/spermaurin-an-la1-like-peptide-from-the-venom-of-the-scorpion-scorpio-maurus-palmatus-improves-sperm-motility-and-fertilization-in-different-mammalian-species
#1
Guillaume Martinez, Jean-Pascal Hograindleur, Sébastien Voisin, Roland Abi Nahed, Tarek M Abd El Aziz, Jessica Escoffier, Julien Bessonnat, Claire-Maëlle Fovet, Michel De Waard, Sylviane Hennebicq, Vincent Aucagne, Pierre F Ray, Eric Schmitt, Philippe Bulet, Christophe Arnoult
STUDY QUESTION: Is it possible to identify original compounds that are able to enhance sperm motility from the venom of the scorpion Scorpio maurus palmatus? SUMMARY ANSWER: We identified a potent disulfide-rich peptide (DRP) of 73 amino acids that significantly improved the motility of fresh and frozen-thawed sperm in different mammalian species, including human, and improved fertilization outcome in mouse IVF experiments. WHAT IS KNOWN ALREADY: Any disturbance of sperm motility has a strong impact on fertilization and can lead to subfertility or infertility...
December 8, 2016: Molecular Human Reproduction
https://www.readbyqxmd.com/read/27927843/risk-of-childhood-mortality-in-family-members-of-men-with-poor-semen-quality
#2
Heidi A Hanson, Erik N Mayer, Ross E Anderson, Kenneth I Aston, Douglas T Carrell, Justin Berger, William T Lowrance, Ken R Smith, James M Hotaling
STUDY QUESTION: What is the familial childhood mortality in first-degree (FDR) and second-degree relatives (SDR) of patients undergoing semen analysis (SA)? SUMMARY ANSWER: The relationship between infertility and congenital malformations (CM) in offspring is complex, with an increased risk of death due to CM in FDR, but not SDR, of men with lower semen parameters. WHAT IS KNOWN ALREADY: Semen quality is an established predictor of men's somatic health...
December 6, 2016: Human Reproduction
https://www.readbyqxmd.com/read/27927842/parental-contributions-to-early-embryo-development-influences-of-urinary-phthalate-and-phthalate-alternatives-among-couples-undergoing-ivf-treatment
#3
Haotian Wu, Lisa Ashcraft, Brian W Whitcomb, Tayyab Rahil, Ellen Tougias, Cynthia K Sites, J Richard Pilsner
STUDY QUESTION: Are preconception urinary concentrations of phthalates and phthalate alternatives associated with diminished early stage embryo quality in couples undergoing IVF? SUMMARY ANSWER: Male, but not female, urinary concentrations of select metabolites of phthalates and phthalate alternatives are associated with diminished blastocyst quality. WHAT IS KNOWN ALREADY: Although phthalates are endocrine disrupting compounds associated with adverse reproductive health, they are in widespread use across the world...
December 7, 2016: Human Reproduction
https://www.readbyqxmd.com/read/27910711/endometrial-injury-for-rif-patients-undergoing-ivf-icsi-a-prospective-nonrandomized-controlled-trial
#4
Charalampos Siristatidis, Maria Kreatsa, Nikoleta Koutlaki, George Galazios, Vasileios Pergialiotis, Nikolaos Papantoniou
To evaluate the effect of endometrial injury on clinical outcomes in subfertile women with repeated implantation failures (RIF) undergoing assisted reproduction. In this prospective nonrandomized controlled trial, 103 subfertile women with RIF were included. Fifty-one underwent endometrial injury through hysteroscopy in the early follicular phase of the previous cycle and 52 underwent the standard protocol without any intervention. Live birth and miscarriage were the primary outcomes. Clinical and in vitro fertilization (IVF) cycle characteristics, were also compared between groups...
December 2, 2016: Gynecological Endocrinology
https://www.readbyqxmd.com/read/27909571/affordable-art-in-kenya-the-only-hope-for-involuntary-childlessness
#5
S W Ndegwa
The reported overall subfertility rate in Kenia is 26.1% with 50% attributed to tubal factors and 15% due to male factors. This is probably an underestimation taking into consideration that due to the stigma and myths of the disease, many couples are seeking alternative care from religious sects, witchdoctors, herbalists. Because the costs associated with IVF in private centres are only affordable for the happy few, the only true hope for most Kenyans struggling with unintended childlessness lies in the introduction of affordable ART services...
June 27, 2016: Facts, Views & Vision in ObGyn
https://www.readbyqxmd.com/read/27909567/ovarian-reserve-may-be-compromised-after-adnexal-surgery-are-we-sufficiently-fertility-focused-in-our-surgical-training
#6
G S Kalra, S Campbell, G Nargund
There is a general trend towards delay in childbearing age amongst women. The ovarian reserve clearly falls with increasing age and the impact is greater with advancing age, particularly from late 30s. Presence of other risk factors can increase the risk of subfertility. A large number of women are exposed to pelvic surgery for various reasons, both elective and emergency. There is evidence that some of the pelvic surgery performed around ovaries and tubes has a negative impact on the ovarian reserve and in turn may cause a decline in woman's ability to conceive...
June 27, 2016: Facts, Views & Vision in ObGyn
https://www.readbyqxmd.com/read/27905697/management-of-infertile-women-with-pelvic-endometriosis-a-literature-review
#7
Elisabeth Guinard, Pierre Collinet, Catherine Lefebvre, Geoffroy Robin, Chrystele Rubod
INTRODUCTION: Endometriosis is a condition that affects women's fertility. Several mechanisms are involved in this process: anatomical changes, mechanical, immune or inflammatory factors, ovarian reserve alterations. There are different types of strategies to treat endometriosis-related infertility: medical treatment, surgical treatment and / or techniques of medically assisted procreation. EVIDENCE ACQUISITION: We tried to consider various therapeutic strategies depending on the stage of the disease in order to offer appropriate management to patients with endometriosis who wish to become pregnant: we reviewed 58 articles between 1985 to 2016 searching in medline using the key words "endometriosis and infertility" and "infertility and endometriosis treatment"...
December 1, 2016: Minerva Ginecologica
https://www.readbyqxmd.com/read/27900662/randomized-controlled-trial-of-hyalobarrier-%C3%A2-versus-no-hyalobarrier-%C3%A2-on-the-ovulatory-status-of-women-with-periovarian-adhesions-a-pilot-study
#8
Ying Cheong, Sarah Bailey, Jane Forbes
INTRODUCTION: Periadnexal adhesions are known to contribute to subfertility. The restoration of the tubo-ovarian anatomy is one the key principles in reproductive surgery, and this involves adhesiolysis. However, adhesion formation/reformation is very common after periovarian adhesiolysis. It is not known if the application of Hyalobarrier(®), an anti-adhesion gel, around the adnexal region postsurgery influences ovulatory status. The study is a pilot randomized controlled trial (RCT) randomizing women into the application of Hyalobarrier(®) versus no Hyalobarrier(®) at the time of laparoscopy, where postsurgical ovulatory status and pregnancy rates were evaluated...
November 29, 2016: Advances in Therapy
https://www.readbyqxmd.com/read/27889460/evaluation-of-time-lapse-for-establishing-distal-tubal-occlusion-diagnosis-during-hysterosalpingography-procedure-performed-by-using-water-soluble-contrast-media
#9
Serkan Kahyaoglu, Omer Hamid Yumusak, Inci Kahyaoglu, Gokce Naz Kucukbas, Alev Esercan, Yasemin Tasci
BACKGROUND: Hysterosalpingography (HSG) is the most frequently used diagnostic measure for simultaneously determining uterine abnormalities and tubal status among subfertile women. Despite several broader advantages such as availability and increased experience, the subjectivity involved during administration of the HSG procedure itself, and necessary imaging review, decreases the reliability and accuracy of HSG. In this study, we evaluated the time intervals between X-ray imaging during HSG procedure to establish the presence of distal tubal occlusion...
November 24, 2016: Journal of the Chinese Medical Association: JCMA
https://www.readbyqxmd.com/read/27888150/coenzyme-q10-intake-from-foods-and-semen-parameters-in-a-subfertile-population
#10
Bruno C Tiseo, Audrey J Gaskins, Russ Hauser, Jorge E Chavarro, Cigdem Tanrikut
OBJECTIVE: To assess the association between coenzyme Q10 (CoQ10) intake from food sources and semen quality. We assessed this association in a prospective cohort of men attending a fertility clinic. CoQ10 supplementation has been associated with improvements in semen parameters. However, impact of CoQ10 intake from food sources on semen quality has not been investigated. METHODS: Subfertile couples seeking fertility evaluation at the Massachusetts General Hospital Fertility Center were invited to participate in an ongoing study of environmental factors and fertility...
November 22, 2016: Urology
https://www.readbyqxmd.com/read/27868003/the-prostate-specific-protein-transglutaminase-4-tg4-is-an-autoantigen-associated-with-male-subfertility
#11
COMMENT
Siiri E Iismaa
No abstract text is available yet for this article.
October 2016: Annals of Translational Medicine
https://www.readbyqxmd.com/read/27862407/estimation-of-endogenous-levels-of-osteopontin-total-antioxidant-capacity-and-malondialdehyde-in-seminal-plasma-application-for-fertility-assessment-in-buffalo-bubalus-bubalis-bulls
#12
P Kumar, M Saini, D Kumar, A Bharadwaj, P S Yadav
This study was attempted to identify subfertile bulls by quantifying the endogenous levels of osteopontin (OPN), total antioxidant capacity (TAC) and malondialdehyde (MDA) in seminal plasma of buffalo bulls. On the basis of conception rate, buffalo bulls were classified into two groups: high-fertile (conception rate >50%) and subfertile bulls (conception rate <40%). A total of 100 ejaculates (10 ejaculates from each bull) were collected through artificial vagina method. The concentration of OPN, TAC and catalase (CAT) of high-fertile bulls was found to be higher (p < ...
November 14, 2016: Reproduction in Domestic Animals, Zuchthygiene
https://www.readbyqxmd.com/read/27856623/kisspeptin-level-in-the-aging-ovary-is-regulated-by-the-sympathetic-nervous-system
#13
Daniela Fernandois, Gonzalo Cruz, Eun Kyung Na, Hernán E Lara, Alfonso H Paredes
Previous work has demonstrated that the increase in the activity of sympathetic nerves, which occurs during the subfertility period in female rats, causes an increase in follicular cyst development and impairs follicular development. In addition, the increase in ovarian sympathetic activity of aged rats correlates with an increased expression of kisspeptin (KISS1) in the ovary. This increase in KISS1 could participate in the decrease in follicular development that occurs during the subfertility period. We aimed to determine whether the blockade of ovarian sympathetic tone prevents the increase in KISS1 expression during reproductive aging and improves follicular development...
January 2017: Journal of Endocrinology
https://www.readbyqxmd.com/read/27856173/fertility-in-disorders-of-sex-development-a-review
#14
REVIEW
J P Van Batavia, T F Kolon
INTRODUCTION: Disorders of sex development (DSD) are a heterogeneous group of complex conditions that can affect chromosomal, gonadal, and/or phenotypical sex. In addition to impacts on internal and external genitalia,these conditions can affect fertility potentialto various degrees. In this review we discuss fertility issues including gonadalpreservation and reproductive outcomes based on specific DSD conditions. METHODS AND MATERIALS: A systematic literature review was performed on Embase(™), PubMed(®), and Google Scholar(™) for disordersof sex development and infertility...
November 3, 2016: Journal of Pediatric Urology
https://www.readbyqxmd.com/read/27853306/osr1-and-spak-cooperatively-modulate-sertoli-cell-support-of-mouse-spermatogenesis
#15
Yung-Liang Liu, Sung-Sen Yang, Shyi-Jou Chen, Yu-Chun Lin, Chin-Chen Chu, Hsin-Hui Huang, Fung-Wei Chang, Mu-Hsien Yu, Shih-Hua Lin, Gwo-Jang Wu, Huey-Kang Sytwu
We investigated the role of oxidative stress-responsive kinase-1 (OSR1) and STE20 (sterile 20)/SPS1-related proline/alanine-rich kinase (SPAK), upstream regulators of the Na(+)-K(+)-2Cl(-) cotransporter (NKCC1)-essential for spermatogenesis-in mouse models of male fertility. Global OSR1(+/-) gene mutations, but not global SPAK(-/-) or Sertoli cell (SC)-specific OSR1 gene knockout (SC-OSR1(-/-)), cause subfertility with impaired sperm function and are associated with reduced abundance of phosphorylated (p)-NKCC1 but increased p-SPAK expression in testicular tissue and spermatozoa...
November 17, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27852689/female-exposure-to-phthalates-and-time-to-pregnancy-a-first-pregnancy-planner-study
#16
Anne Marie L Thomsen, Anders H Riis, Jørn Olsen, Bo A G Jönsson, Christian H Lindh, Niels H Hjollund, Tina Kold Jensen, Jens Peter Bonde, Gunnar Toft
STUDY QUESTION: Is female exposure to phthalate metabolites associated with reduced fecundity, as estimated by prolonged time to pregnancy (TTP)? SUMMARY ANSWER: Female exposure to monoethyl phthalate (MEP) but not monobutyl phthalate (MBP), monobenzyl phthalate (MBzP) and monoethylhexyl phthalate (MEHP) was associated with a longer TTP. WHAT IS KNOWN ALREADY: Male exposure to phthalates is potentially associated with adverse effects on human fecundity in epidemiological studies, but little is known about the potential effects on female reproduction...
November 16, 2016: Human Reproduction
https://www.readbyqxmd.com/read/27852101/human-chorionic-gonadotrophin-priming-for-fertility-treatment-with-in-vitro-maturation
#17
REVIEW
Jane Reavey, Katy Vincent, Timothy Child, Ingrid E Granne
BACKGROUND: In vitro maturation (IVM) is a fertility treatment that involves the transvaginal retrieval of immature oocytes, and their subsequent maturation and fertilisation. Although the live birth rate is lower than conventional in vitro fertilisation (IVF) with ovarian stimulation, it is a useful treatment, as it avoids the risk of ovarian hyperstimulation syndrome (OHSS). Women with polycystic ovaries (PCO) or polycystic ovarian syndrome (PCOS) are at an increased risk of OHSS. Thus, IVM may be a more useful treatment in this patient group...
November 16, 2016: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/27836979/a-mild-ovarian-stimulation-strategy-in-women-with-poor-ovarian-reserve-undergoing-ivf-a-multicenter-randomized-non-inferiority-trial
#18
M A Youssef, M van Wely, H Al-Inany, T Madani, N Jahangiri, S Khodabakhshi, M Alhalabi, M Akhondi, S Ansaripour, R Tokhmechy, L Zarandi, A Rizk, M El-Mohamedy, E Shaeer, M Khattab, M H Mochtar, F van der Veen
STUDY QUESTION: In subfertile women with poor ovarian reserve undergoing IVF does a mild ovarian stimulation strategy lead to comparable ongoing pregnancy rates in comparison to a conventional ovarian stimulation strategy? SUMMARY ANSWER: A mild ovarian stimulation strategy in women with poor ovarian reserve undergoing IVF leads to similar ongoing pregnancy rates as a conventional ovarian stimulation strategy. WHAT IS KNOWN ALREADY: Women diagnosed with poor ovarian reserve are treated with a conventional ovarian stimulation strategy consisting of high-dose gonadotropins and pituitary downregulation with a long mid-luteal start GnRH-agonist protocol...
November 11, 2016: Human Reproduction
https://www.readbyqxmd.com/read/27833122/re-visiting-the-protamine-2-locus-deletion-but-not-haploinsufficiency-renders-male-mice-infertile
#19
Simon Schneider, Melanie Balbach, Jan F Jikeli, Daniela Fietz, Daniel Nettersheim, Sina Jostes, Rovenna Schmidt, Monika Kressin, Martin Bergmann, Dagmar Wachten, Klaus Steger, Hubert Schorle
Protamines are arginine-rich DNA-binding proteins that replace histones in elongating spermatids. This leads to hypercondensation of chromatin and ensures physiological sperm morphology, thereby protecting DNA integrity. In mice and humans, two protamines, protamine-1 (Prm1) and protamine-2 (Prm2) are expressed in a species-specific ratio. In humans, alterations of this PRM1/PRM2 ratio is associated with subfertility. By applying CRISPR/Cas9 mediated gene-editing in oocytes, we established Prm2-deficient mice...
November 11, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27821977/viral-hepatitis-and-assisted-reproduction
#20
EDITORIAL
Gautam N Allahbadia
Infertility treatment in couples where one or both parents are infected with hepatitis raises many concerns about transmission of the infection to the baby, laboratory technicians, and medical staff, and contamination of other gametes/embryos that are from virus-free parents in the same laboratory. Exposure to the other partner is only a risk when the couple's hepatitis status is discordant. The management of infertility, in association with HBV or HCV, has sparked debates about the potential risk of spread of infection to virus-free individuals, embryos, and/or semen...
December 2016: Journal of Obstetrics and Gynaecology of India
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