A new breakthrough blood test that helps predict the approximate age at which a woman would attain menopause has been developed. The preliminary findings of this population-based cohort study were presented at the 26th annual meeting of the European Society of Human Reproduction and Embryology (ESHRE) held at Rome from 27^th to 30^th June 2010. The researchers are hopeful that the test could help women determine the age at which they reach menopause and accordingly plan their motherhood. Continue Reading

Potential screening tools for early ovarian ageing include small antral follicle counts, anti-Müllerian hormone levels, abnormal autoimmune function, and number of CGG repeats on the fragile X mental retardation 1 (FMR1) gene. A recent preliminary prospective randomized controlled trial reiterates that 30 to 40 CGG trinucleotide repeats on FMR1 may serve as a predictor of premature ovarian ageing and premature ovarian failure (POF) in infertile women. However, no significant association was observed between the concentrations of anti-thyroid and anti-adrenal autoantibodies and FSH levels/CGG repeat numbers. The findings of the recent study have been published in the journal, Reproductive BioMedicine Online. Continue Reading

A recent controlled clinical trial highlights that the underlying mechanism for the positive effect of endometrial biopsy on improved implantation rate in IVF cycles could be attributed to an injury-induced inflammatory response. The findings, published in the journal Fertility and Sterility further suggest that the increased expression of the macrophage inflammatory protein 1B (MIP-1B) could serve as a marker for predicting implantation competence. Continue Reading

The prevalence of subclinical hypothyroidism (SH) is reported to be high in infertile women. Despite this, its management remains controversial owing to the lack of proven treatment benefits. Now, a recent prospective, randomized trial has highlighted the importance of levothyroxine (LT4) supplementation for achieving clinical pregnancies in women with SH opting for IVF-ICSI. The findings of the study have been published in the recent issue of Endocrine Practice. Continue Reading

A recent prospective clinical study reports that a reduction in the proportion of CD4⁺CD25 (high) regulatory T cells (Treg) and forkhead box P3 (FOXP3) expression in the peripheral blood and decidua could play a role in the pathogenesis of unexplained recurrent spontaneous abortions (URSA). The findings of the study are published in the recent issue of the journal Fertility and Sterility. Continue Reading

A recent randomized controlled study highlights the increase in implantation and live birth rates with mid-follicular recombinant human luteinizing hormone (r-HLH) supplementation in women aged 35 to 39 years who were subjected to ovarian stimulation for intracytoplasmic sperm injection (ICSI) cycles. The findings have been published in the recent issue of the journal, Reproductive BioMedicine Online. Continue Reading

Although the efficacy of anti-Müllerian hormone (AMH) as a marker in IVF cycles has been established in various studies, there is insufficient evidence about its usefulness in oocyte donors. Now, a study has reported that AMH assessment in oocyte donors has the potential to ascertain the gonadotropin sensitivity and reduce/prevent the occurrence of ovarian hyperstimulation syndrome (OHSS). The findings, indicating the benefits of testing AMH for individualizing stimulation protocols, have been published in the online issue of the journal, Reproductive BioMedicine Online. Continue Reading

In 2000, a study conducted by Japanese researchers on quail brains reported the existence of a gonadotropin-inhibitory hormone (GnIH), the first hypothalamic peptide noted in a vertebrate that directly blocks the synthesis and release of gonadotropins from the pituitary gland. Although several subsequent studies have identified the presence of the hormone in mice and sheep models, the existence of a similar hypothalamic gonadotropin-inhibiting system in humans was unclear. Now, in a groundbreaking study published in the recent issue of the journal PLoS One, researchers report the identification of human homologs of the GnIH hormone: RFamide-related peptide-1 (RFRP-1) and RFRP-3, in the human hypothalamus. The discovery of the new reproductive hormone mandates the revision of our current understanding of the central control mechanisms that regulate human reproductive functions. Continue Reading