GYNECOLOGICAL ENDOCRINOLOGY

HSD11B1 overexpression in dendritic cells and stromal cells relates to endometriosis by inhibiting dendritic cell proliferation and maturation
Yang X, Jiang L and Xu Y
This study aims to explore the alterations of dendritic cells (DCs) subpopulations in ectopic endometrial lesions and unveil the underlying mechanisms.
Optimizing timing for intrauterine insemination (IUI) in donor sperm cycles: pre- versus post-ovulation insemination in natural cycles
Zhang N and Zhou H
To investigate whether pregnancy outcomes of natural cycle intrauterine insemination (IUI) with donor sperm can be improved by performing insemination after confirmation of ovulation.
Cytoplasmic sperm injection (ICSI) - A systematic review of the literature
Lokshin VN, Temirkhanovna Abshekenova A, Di Renzo GC, Feichtinger M, Kenesovna Karibayeva S and Margulanovna Syzdykova D
: Progestin-primed ovarian stimulation (PPOS) stimulates ovaries to block the premature surge of luteinizing hormone (LH) by using micronized progesterone or a progestin during the follicular phase instead of the conventional gonadotropin-releasing hormone (GnRH) analogues or GnRH antagonists downregulating LH to obtain multi-follicle engagement. Current work aims to assess the influence of progestogen treatment on ovarian stimulation and the ability to control LH surge, its efficacy and suitability in retrieving oocytes, without affecting the embryo quality and its benefit among infertile women long-term outcomes on children compared to standard stimulation protocols. The literature review used the randomized control trials published in the Pubmed database from January 2015 to April 2021. To generate the citation list, the following keywords were used: 'progestin-primed ovarian stimulation', 'PPOS', 'micronized progesterone', 'medroxyprogesterone', and/or 'dydrogesterone'. The selected articles analyzed the cohort, intervention, and scheme of the progestin-primed ovarian stimulation protocol in controlled ovarian stimulation (COS) for in-vitro fertilization (IVF)/intra cytoplasmic sperm injection (ICSI) used in Assisted Reproductive Technologies (ART). Overall we concluded that PPOS for IVF/ICSI in ART results in a higher number of obtained embryos, lower incidence of OHSS, equal duration of stimulation, number of retrieved oocytes, and number of MII oocytes. It is also suggested that long-term safety in children shows no significant difference between the study and control groups. Despite the outcomes of progestin stimulation cycles among all cohorts, we concluded that poor ovarian responders, patients with PCOS, women of advanced age and oocyte donors benefit the most from using PPOS.
Expression and clinical significance of lncRNA PART1 in patients with unexplained recurrent pregnancy loss
Lihua C, Hua S, Wenzhan W, Standard J and Denghui L
Previous studies have reported the involvement of long noncoding RNAs (lncRNAs) in reproductive diseases the regulation of target genes. This study aimed to determine whether lnc-prostate androgen-regulated transcript 1 (lnc-PART1)could be used as a biomarker of unexplained recurrent pregnancy loss (URPL) and a possible predictor of poor pregnancy outcomes in women with URPL.
Statement of Retraction: Can Metformin reduce the incidence of Gestational Diabetes Mellitus in pregnant women with polycystic ovary syndrome? Prospective Cohort Study
Statement of retraction: Impact of unilateral versus bilateral laparoscopic ovarian drilling on ovarian reserve and pregnancy rate: a randomized clinical trial
GnRH antagonist impairs the process of embryo implantation by inhibiting motility of endometrial stromal cells through reducing c-kit expression
Tan J, Fan L, Li X, Xia LZ, Xu DF, Zhang ZQ, Wang CH, Wu QF, Zhao Y and Li ZM
It has been recognized that the gonadotropin-releasing hormone antagonist (GnRH-ant) protocol has a detrimental effect on clinical outcomes compared to the GnRH agonist (GnRH-a) protocol during fertilization-fresh embryo transfer (IVF-ET) cycles. However, the related mechanisms were unclear.
Lower serum LH level was related to poor embryo quality and adverse pregnancy outcomes in fixed GnRH antagonist protocol with estradiol pretreatment
Chen Y, Li Y, Li X, Liu L, Liu Z, Gui W, Liu X and Chen Y
To disclose the relationships between serum LH and reproductive outcomes in Gonadotropin-releasing hormone (GnRH) antagonist protocol pretreated with luteal estradiol.
Statement of Retraction: L-Carnitine plus metformin in clomiphene-resistant obese PCOS women, reproductive and metabolic effects: a randomized clinical trial
Arm muscle area is correlated to handgrip strength in postmenopausal women
Álvarez-Córdova LR, Artacho R, Chedraui P, Arteaga-Pazmiño C, Sánchez-Briones M and Ruiz-López MD
To analyze the correlation between arm muscle area and handgrip strength among postmenopausal community dwelling low-income women in order to provide an easy anthropometric indicator to assess muscle mass quantity and quality.
Statement of Retraction: The impact of letrozole on oocyte quality in assisted reproductive technology (ART); a randomized double-blind clinical trial
Is there any association between vitamin D status and PCOS disease?
Zerrouki D, Rami I, Assarrar I, Bouichrat N, Rouf S and Latrech H
Polycystic ovary syndrome (PCOS) is a common hormonal disorder among women of reproductive age. The current study sought to assess vitamin D status in women with PCOS compared to the control group and to describe the association between vitamin D deficiency and the features of PCOS.
MiR-19b-3p inhibits cell viability and proliferation and promotes apoptosis by targeting IGF1 in KGN cells
Li Y, Ye Y, Zhang H, Yang Y, Zhang N, Gao H and Wu R
Endometriosis (EM) is a major cause of infertility, but the pathogenesis and mechanisms are not yet fully elucidated. MiR-19b-3p is involved in many diseases, but its functional role in EM-associated infertility remains unexplored. This study aimed to examine miR-19b-3p abundance and IGF1 concentration in cumulus cells (CCs) and follicular fluid of EM-associated infertility patients, and to investigate the potential role of miR-19b-3p in KGN cells by identifying its target and elucidating the underlying mechanisms.
Efficacy and uterine bleeding patterns in initiating goserelin therapy during different menstrual phases in patients with adenomyosis: a prospective cohort study
Lin Y, Sun H, Ming Y, Wang X, Jiao X, Pan Z, Ren Q, Yan S, Li D and Wang G
We carried out this study to explore the possibility of initiating goserelin therapy during the non-menstrual period in patients diagnosed with adenomyosis.
Correction
The role of inositols during pregnancies complicated by gestational diabetes mellitus: a narrative review
Mazzera I, Graziano A, Vizzielli G and Driul L
Pregnancy is a critical period marked by intricate physiological changes and maintaining maternal and fetal well-being is paramount. Inositols, a group of naturally occurring sugar alcohols, have gained attention for their potential benefits during pregnancy. This abstract provides a comprehensive review of the current literature on using inositols, primarily myo-inositol (MI) and D-chiro-inositol (DCI) in pregnancy. Inositols are crucial in cellular signal transduction and insulin sensitivity, making them integral to various physiological processes. Several studies suggest that inositols may contribute to preventing and managing gestational diabetes mellitus (GDM). MI, in particular, has shown promise in improving insulin sensitivity and mitigating insulin resistance, thereby influencing glucose metabolism. As our understanding of inositol's role in pregnancy deepens, it may emerge as a valuable supplement to enhance maternal and fetal health outcomes.
Association of SOGPI in mediating the effect of Phosphatidylcholine on polycystic Ovary Syndrome
Guo Q, Wang W, Chen J, Ma WR, Yang Y and Tan Y
Polycystic ovary syndrome (PCOS) is a prevalent endocrine disorder in women of reproductive age, marked by hormonal imbalances and disruptions in glucose and lipid metabolism. Emerging research has indicated a correlation between lipids and PCOS, yet the specific lipid profiles or associated genes identified in various studies vary, and observational data alone cannot establish causation. Therefore, our study seeks to establish a causal association between lipidome and PCOS.
Influence of vitamin D-calcium on metabolic profile for gestational diabetes: a meta-analysis of randomized controlled trials
Wang J, Chen Q and Zhang S
The use of vitamin D-calcium supplementation for treating gestational diabetes remains unclear. This meta-analysis aims to evaluate the efficacy of vitamin D-calcium supplementation in the treatment of gestational diabetes.
Factors in malignant transformation of ovarian endometriosis: A narrative review
Giannini A, Massimello F, Caretto M, Cosimi G, Mannella P, Luisi S, Gadducci A and Simoncini T
Endometriosis is a common estrogen-dependent inflammatory disease with a chronic course and a tendency to recur. The association between endometriosis and cancer has been studied for several years. Numerous reports have demonstrated a strong association between specific ovarian malignancies and endometriotic lesions. Atypical endometriosis has been widely described as a malignant precursor to ovarian epithelial tumors, particularly clear cell carcinomas and endometrioid carcinomas. These histological types associated with endometriosis develop predominantly in the ovary rather than in extragonadal sites. The detailed molecular mechanism of etiology remains unclear. Recent studies have analyzed the genetic and molecular mechanisms involved in endometriosis-associated ovarian cancer. A critical role appears to be played by a carcinogenic model based on iron-induced oxidative stress, which is typical of the endometriosis microenvironment. It has been hypothesized that trans-tubal reflux of blood, endometrial cells and associated iron-induced oxidative stress underlie the development of endometriosis-associated ovarian cancer. However, the multifactorial mechanisms of this malignant transformation are not fully understood. The aim of this review is to summaries the current epidemiological, histopathological, genetic and molecular findings in the progression of endometriosis-associated ovarian cancer.
Is combined letrozole and clomiphene superior to either as monotherapy: a systemic review and meta-analysis based on clinical trials
Ashkar A, Jadoon B, Ali Baig MM, Irfan SA, El-Gayar M and Siddiqui FZ
This research was conducted to assess the therapeutic advantage of combined letrozole and clomiphene citrate versus monotherapy for polycystic ovarian syndrome (PCOS) patients.
Associations between maternal polymorphisms and embryological outcomes in Korean patients with infertility undergoing IVF/ICSI cycles
Ko YR, Kim TH, Jin Hee E, Lee WS and Kim SJ
Methylenetetrahydrofolatereductase (MTHFR) is important for folate metabolism, which is involved in DNA synthesis and cell growth. However, the relationship between Maternal polymorphisms and outcomes in assisted reproduction remains controversial. This is the first study to explore the effect of polymorphisms on the embryological outcomes in fertilization/intracytoplasmic sperm injection (IVF/ICSI) cycles in Korean patients with infertility.