Monash discovery may help unlock the key to infertility in older women

(Monash University) Findings from new research led by the Monash Biomedicine Discovery Institute (BDI) and University College London may finally resolve, and potentially provide answers, as to why older women have higher incidences of miscarriage and have babies with chromosomal abnormalities.
Source: EurekAlert! - Social and Behavioral Science - Category: International Medicine & Public Health Source Type: news

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Authors: Lopes LS, Esteves SC Abstract In recent years, growing evidence has challenged the notion that sperm quantity and quality are not essential for the success of assisted reproductive technology. DNA fragmentation assessments on ejaculated and testicular sperm harvested from non-azoospermic infertile men have reported a remarkable decrease in DNA damage in spermatozoa directly retrieved from the seminiferous tubules. Moreover, emerging evidence using molecular genetic techniques indicates that aneuploidy rates are lower in testicular sperm than in ejaculated counterparts. The use of testicular sperm from non-...
Source: Panminerva Medica - Category: General Medicine Tags: Panminerva Med Source Type: research
In this study, vaginal microbiome was divided in five biotypes, being four of them dominated by lactobacilli and considered as healthy (pH 5.0) and higher diversity. In a healthy status, microbiota is balanced and forms a stable ecological unit dominated by Lactobacillus species, which fixes pH below 5.0 and controls non-desirable groups. In a pathogenic process, the microbiome shifts to a dysbiotic state, in which lactobacilli drop, pH is increased to values above 4.5 and other groups such as Gardnerella, Atopobium, Prevotella, and Streptococcus, among others, can overgrow (Srinivasan et al., 2012). Short chain fatty acid...
Source: Frontiers in cellular and infection microbiology - Category: Microbiology Source Type: research
CONCLUSIONS: At present, there is no high-quality evidence to support the routine use of hysteroscopy as a screening tool in the general population of subfertile women with a normal ultrasound or hysterosalpingogram in the basic fertility work-up for improving reproductive success rates.In women undergoing IVF, low-quality evidence, including all of the studies reporting these outcomes, suggests that performing a screening hysteroscopy before IVF may increase live birth and clinical pregnancy rates. However, pooled results from the only two trials with a low risk of bias did not show a benefit of screening hysteroscopy bef...
Source: Cochrane Database of Systematic Reviews - Category: General Medicine Authors: Tags: Cochrane Database Syst Rev Source Type: research
Abstract OBJECTIVE: To estimate the differences in frequency of septate uterus diagnosis and the association with infertility and previous miscarriage using three different criteria. METHODS: Secondary data-driven analysis of data from prospective study was performed based on data-set of 261 consecutive women of reproductive age from daily clinical practice in private clinic focused on diagnosis and treatment of congenital uterine malformations. Re-analysis of datasets was performed using following definitions of septate uterus: ASRM-2016, ESHRE/ESGE-2016, and CUME-2018 (Congenital Uterine Malformation by Exp...
Source: The Ultrasound Review of Obstetrics and Gynecology - Category: Radiology Authors: Tags: Ultrasound Obstet Gynecol Source Type: research
Jie Cai1†, Yi Zhang1†, Yuying Wang1, Shengxian Li1, Lihua Wang1, Jun Zheng1, Yihong Jiang1, Ying Dong1, Huan Zhou1, Yaomin Hu1, Jing Ma1, Wei Liu1,2*† and Tao Tao1*† 1Division of Endocrinology and Metabolism, Department of Internal Medicine, Renji Hospital, School of Medicine, Shanghai Jiaotong University, Pudong, China 2Shanghai Key Laboratory for Assisted Reproduction and Reproductive Genetics, Center for Reproductive Medicine, Renji Hospital, School of Medicine, Shanghai Jiaotong University, Pudong, China Background: Infertility and dyslipidemia are frequently present in both women...
Source: Frontiers in Endocrinology - Category: Endocrinology Source Type: research
Eleni Angelopoulou1,2, Clarisse Quignon1, Lance J. Kriegsfeld3 and Valérie Simonneaux1* 1Institut des Neurosciences Cellulaires et Intégratives (CNRS UPR 3212), Université de Strasbourg, Strasbourg, France 2Netherlands Institute for Neuroscience (NIN), Amsterdam, Netherlands 3Department of Psychology, Helen Wills Neuroscience Institute, University of California, Berkeley, Berkeley, CA, United States Adaptation of reproductive activity to environmental changes is essential for breeding success and offspring survival. In mammals, the reproductive system displays regular cycles of activation a...
Source: Frontiers in Endocrinology - Category: Endocrinology Source Type: research
Di Che1†, Yanfang Yang2†, Yufen Xu1†, Zhenzhen Fang3, Lei Pi1, LanYan Fu1, Huazhong Zhou1, Yaqian Tan1, Zhaoliang Lu1, Li Li4, Qihua Liang5, Qingshan Xuan4* and Xiaoqiong Gu1,5,6* 1Department of Clinical Biological Resource Bank, Guangzhou Institute of Pediatrics, Guangzhou Women and Children’s Medical Center, Guangzhou Medical University, Guangzhou, China 2Department of Prenatal Diagnosis, Maoming People’s Hospital, Maoming, China 3Program of Molecular Medicine, Guangzhou Women and Children’s Hospital, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China 4...
Source: Frontiers in Physiology - Category: Physiology Source Type: research
Abstract Balanced reciprocal translocation carriers are usually phenotypically normal but are at an increased risk of infertility, recurrent miscarriage or having affected children. Preimplantation genetic testing on chromosomal structural rearrangement (PGT-SR) offers a way to screen against unbalanced embryos. Here, we demonstrated a new method to distinguish carrier from noncarrier embryos. Translocation breakpoints were first delineated by nanopore sequencing followed by polymerase chain reaction (PCR) across breakpoints. High-resolution breakpoint mapping was successful in all (9/9) balanced reciprocal transl...
Source: Genomics - Category: Genetics & Stem Cells Authors: Tags: Genomics Source Type: research
Abstract CASE PRESENTATION: A 32-year-old Nigerian woman, who became pregnant after undergoing in vitro fertilization, was admitted with nausea and abdominal pain. She had a history of two miscarriages and infertility because of tubal blockage treated by salpingectomy. One week prior, she presented to an outside hospital with premature rupture of membranes resulting in stillborn delivery of twins. Endometrial cultures from dilatation and curettage grew Escherichia coli, and she was started on a fluoroquinolone for chorioamnionitis. PMID: 30955580 [PubMed - in process]
Source: Chest - Category: Respiratory Medicine Authors: Tags: Chest Source Type: research
This study provides an update and comprehensive evidence to support the observation that despite the fact that PCOS patients achieve better clinical pregnancy rate and live birth rate, physicians should continue to consider patients with PCOS to be high risk of adverse pregnancy-related outcomes.
Source: Reproductive BioMedicine Online - Category: Reproduction Medicine Source Type: research
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