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MiR-150-5p contributes to unexplained recurrent spontaneous abortion by targeting VEGFA and downregulating the PI3K/AKT/mTOR signaling pathway
ConclusionsOverall, these findings imply that miR-150-5p is among the key factors that regulate the pathogenesis of URSA. (Source: Journal of Assisted Reproduction and Genetics)
Source: Journal of Assisted Reproduction and Genetics - November 3, 2023 Category: Reproduction Medicine Source Type: research

Predicting the ovarian response: towards a determinant model and implications for practice
Conclusion(s)A substantial improvement of the ovarian response prediction is possible in modelling the possible cancellation decision, followed by the oocyte retrieval itself, according to an appropriate model based on previous stimulation and non-linear effects of AMH and AFC. (Source: Journal of Assisted Reproduction and Genetics)
Source: Journal of Assisted Reproduction and Genetics - November 3, 2023 Category: Reproduction Medicine Source Type: research

NOBOX gene variants in premature ovarian insufficiency: ethnicity-dependent insights
ConclusionThis population study suggests that the p.(Arg44Leu) variant could be considered benign variant and that the p.(Asp452Asn) and p.(Arg117Trp) variants could be considered moderate risk pathogenic variants with probably partial and very low penetrance and/or expressivity. In contrast, p.(Gly91Trp) and p.(Gly152Arg) variants could be considered pathogenic variants with a moderate functional impact. (Source: Journal of Assisted Reproduction and Genetics)
Source: Journal of Assisted Reproduction and Genetics - November 3, 2023 Category: Reproduction Medicine Source Type: research

Correlation among irrational parenthood cognitions, fertility stress, and social support in patients with repeated implantation failure and the mediating effect of fertility stress: a cross-sectional survey
ConclusionsThe mediating effect of reproductive stress on the relationship between irrational parenthood cognitions and social support in patients with repeated implantation failure was significant. It is important for medical and nursing staff to address physical and psychological illnesses and develop effective intervention strategies from the perspectives of fertility stress, social support, and cultural background, with the ultimate goal of improving mental health. (Source: Journal of Assisted Reproduction and Genetics)
Source: Journal of Assisted Reproduction and Genetics - November 3, 2023 Category: Reproduction Medicine Source Type: research

Moving the context of preserving fertility into an expanded domain
(Source: Journal of Assisted Reproduction and Genetics)
Source: Journal of Assisted Reproduction and Genetics - November 3, 2023 Category: Reproduction Medicine Source Type: research

Relationship between degree of methylation of sperm long interspersed nuclear element-1 (LINE-1) gene and alteration of sperm parameters and age: a meta-regression analysis
ConclusionsThe results of this systematic review and meta-analysis do not suggest a determining role of spermLINE1 gene methylation degree in patients with infertility and/or abnormal sperm parameters. Therefore, we do not suggest includingLINE1 in the genetic panel of prospective studies aimed at identifying the most representative and cost-effective genes to be analyzed in couples undergoing ART cycles. (Source: Journal of Assisted Reproduction and Genetics)
Source: Journal of Assisted Reproduction and Genetics - November 3, 2023 Category: Reproduction Medicine Source Type: research

The HERA (Hyper-response Risk Assessment) Delphi consensus for the management of hyper-responders in in vitro fertilization
ConclusionThese guidelines for the management of hyper-response can be useful for tailoring patient care and for harmonizing future research. (Source: Journal of Assisted Reproduction and Genetics)
Source: Journal of Assisted Reproduction and Genetics - November 1, 2023 Category: Reproduction Medicine Source Type: research

Evaluation of pre-implantation genetic testing for aneuploidy outcomes in patients without infertility undergoing in vitro fertilization compared to infertile controls
ConclusionAneuploidy rate was similar in fertile and infertile patients. Fertile patients had slightly higher euploidy and lower mosaicism than infertile patients. Still, compared to fertile patients, infertile patients had equivalent rates of transferrable embryos and were just as likely to yield ≥ 1 euploid embryo. (Source: Journal of Assisted Reproduction and Genetics)
Source: Journal of Assisted Reproduction and Genetics - November 1, 2023 Category: Reproduction Medicine Source Type: research

Impact of maternally derived meiotic aneuploidies on early embryonic development in vitro
ConclusionMeiotically induced maternal aneuploidies have different effects on early embryonic development. While no difference in developmental potential between monosomies and trisomies could be observed in blastocysts, cleavage stage quality was significantly affected by chromosomal aneuploidies. (Source: Journal of Assisted Reproduction and Genetics)
Source: Journal of Assisted Reproduction and Genetics - November 1, 2023 Category: Reproduction Medicine Source Type: research

Culture conditions in the IVF laboratory: state of the ART and possible new directions
AbstractIn the last four decades, the assisted reproductive technology (ART) field has witnessed advances, resulting in improving pregnancy rates and diminishing complications, in particular reduced incidence of multiple births. These improvements are secondary to advanced knowledge on embryonic physiology and metabolism, resulting in the ability to design new and improved culture conditions. Indeed, the incubator represents only a surrogate of the oviduct and uterus, and the culture conditions are only imitating the physiological environment of the female reproductive tract. In vivo, the embryo travels through a dynamic a...
Source: Journal of Assisted Reproduction and Genetics - November 1, 2023 Category: Reproduction Medicine Source Type: research