ABSTRACT
Azoospermia, or the complete absence of sperm in the ejaculate, affects about 1% of men worldwide and is a significant fertility challenge. This study investigates Linc00513, a long non-coding RNA, and its potential role in regulating the TGF-ß signaling pathway, a key player in spermatogenesis, in the context of azoospermia. We show that Linc00513 expression is significantly lower in testicular tissues from azoospermic patients than in HS1 controls. Linc00513 interacts directly with microRNA-7 (miR-7) via complementary base pairing, acting as a competing endogenous RNA (ceRNA). This interaction effectively inhibits miR-7's inhibitory action on the TGF-ß receptor 1 (TGFBR1), a critical component of the TGF-ß signaling cascade. Downregulating Linc00513 reduces TGFBR1 repression and increases TGF-ß signaling in azoospermic testes. Functional assays with spermatogonial cell lines support these findings. Silencing Linc00513 leads to increased cell proliferation and decreased apoptosis, similar to TGF-ß inhibition. Overexpression of miR-7 inhibits the effects of Linc00513 on TGF-ß signaling. Our study sheds new light on how Linc00513, miR-7, and the TGF-ß signaling pathway interact in azoospermia. Linc00513 regulates TGFBR1 expression and thus influences spermatogonial cell fate by acting as a miR-7 ceRNA. These findings identify a potential therapeutic target for azoospermia treatment, paving the way for future research into restoring fertility in affected individuals.
ABSTRACT
Background: Menopausal symptoms are very diverse in terms of prevalence and severity, and this difference is due to various factors such as psychological factors, sociocultural status, lifestyle, geographical location, and other factors. This study aimed to assess the prevalence of menopausal symptoms and evaluate the predictive factors related to the prevalence and severity of menopausal symptoms. Materials and Methods: This was a cross-sectional analytical study that was performed on 214 women aged 35-65 years old who were referred to Alzahra Educational, Research and Treatment Center in Rasht, Iran. The data collection tool was a valid and reliable questionnaire, using the list of menopausal symptoms and a checklist of subjects' general characteristics. Results: 16.8% of postmenopausal women in our study had at least one menopausal symptom. Using multiple linear regression, race (p = 0.02), history of chronic diseases (p = 0.04), place of residence (p = 0.02), and marital satisfaction (p = 0.02) were associated with menopausal symptoms. Nineteen percent of the covariates related to the logistics function were explained by the predictor variables in the model. Conclusion: Evaluation of menopausal symptoms showed that the severity of menopausal symptoms was related to factors such as body mass index (BMI), ethnicity, place of residence, marital satisfaction, and history of chronic diseases, and need to address BMI, psychological issues, and chronic illness.
ABSTRACT
Background: Some studies reported the association between fibroids with uterine inflammation. By considering this hypothesis, the formation and recurrence of uterine fibroids can be prevented by diagnosis and treatment of inflammation, and complications and costs can be reduced. This study aimed to evaluate the association between chronic endometritis and uterine fibroids in non-menopausal women. Materials and Methods: This prospective case-control study was performed on non-menopausal women referred to Al-Zahra Hospital in Rasht during April 2019-April 2020. Non- menopausal women of reproductive age (20-55 years old) with abnormal uterine bleeding who were candidates for hysteroscopy based on medical history and ultrasound reports were included in this study. The case group with fibroids were divided into two groups of intramural and subserosal myoma group and submucosal group based on the location of fibroids. The control group was patients with abnormal uterine bleeding complaints and no uterine fibroid. Endometrial specimens were examined by a pathologist for histological and immunochemistry assessments. In interpreting the results of endometrial biopsy, a positive result was indicated by the presence of one or more plasma cells per 10 high power field. Data were gathered by a form including age, parity, history of recurrent miscarriage, patient's complaint (abnormal uterine bleeding), hysteroscopic results (submucosal myoma-polyp-normal), uterine histology (polyp, endometritis, and hyperplasia) and prevalence of chronic endometritis based on plasma cell in the biopsy. Data were analyzed by SPSS software version 21. Data were reported by descriptive statistics including number, percent, mean and standard deviation. The normality of quantitative data was assessed by the Kolmogorov- Smirnov test. Mann-Whitney U test, Chi-square and Fisher exact tests were used to compare groups and logistic regression was used to control the effect of confounders. Results: The incidence of chronic endometritis was 39% (38 out of 97) and a higher incidence of chronic endometritis was noted in the case group than the control group (46% vs. 31%), No significant difference was observed between the two groups (P > 0.05). However, the incidence of chronic endometritis in women with submucosal myoma was higher than the intramural and subserosal groups (64% vs. 37%) (P = 0.04). To control the effect of age on the rate of chronic endometritis in both groups, no significant effect was observed in logistic regression. Conclusions: The results showed the overall incidence of chronic endometritis was higher than previous studies and also the incidence was higher and more significant in women with submucosal myoma than in the intramural and subserosal group. As in this study, authors assessed the association between chronic endometritis and uterine fibroids, further studies assessing the cause and effect relationships are recommended.
