Role of miRNA polymorphism in recurrent pregnancy loss: a systematic review and meta-analysis

2022 ◽  
Author(s):  
Priyanka Srivastava ◽  
Chitra Bamba ◽  
Seema Chopra ◽  
Kausik Mandal
Keyword(s):  
Systematic Review ◽  
Data Mining ◽  
Gene Polymorphism ◽  
Pregnancy Loss ◽  
Recurrent Pregnancy Loss ◽  
Meta Analysis ◽  
Mirna Gene ◽  
Population Heterogeneity ◽  
Cochrane Library

There are a plethora of publications on the role of miRNA gene polymorphism and its association with recurrent pregnancy loss (RPL), but a lack of uniformity in the studies available due to the variable subject population, heterogeneity and contrary results of significance. Rigorous data mining was done through PubMed, SCOPUS, Cochrane library, Elsevier and Google Scholar to extract the studies of interest published until June 2021. A total of eight SNPs of miRNAs have been included, where ≥2 studies per SNPs were available. Analysis was done on the basis of pooled odds ratios and 95% CI. This is the first meta-analysis on miRNA SNPs in RPL that suggests that rs11614913, rs3746444 and rs2292832 biomarkers may decrease the risk of RPL under different genetic models.

The role of immunotherapy in in vitro fertilization and recurrent pregnancy loss: a systematic review and meta-analysis

2018 ◽  
Vol 110 (6) ◽  
pp. 1089-1100 ◽  
Author(s):  
Chiara Achilli ◽  
Montserrat Duran-Retamal ◽  
Wael Saab ◽  
Paul Serhal ◽  
Srividya Seshadri
Keyword(s):  
Systematic Review ◽  
In Vitro Fertilization ◽  
Pregnancy Loss ◽  
Recurrent Pregnancy Loss ◽  
Meta Analysis ◽  
Vitro Fertilization

scholarly journals Systematic review and meta-analysis of female lifestyle factors and risk of recurrent pregnancy loss

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Ka Ying Bonnie Ng ◽  
George Cherian ◽  
Alexandra J. Kermack ◽  
Sarah Bailey ◽  
Nick Macklon ◽  
...  
Keyword(s):  
Systematic Review ◽  
General Population ◽  
Pregnancy Loss ◽  
Recurrent Pregnancy Loss ◽  
Meta Analysis ◽  
Lifestyle Factors ◽  
Caffeine Intake ◽  
Increased Risk ◽  
Secondary Outcomes

AbstractIt is known that lifestyle factors affect sporadic miscarriage, but the extent of this on RPL (recurrent pregnancy loss) is less well known. A systematic review and meta-analysis was performed to assess the associations between lifestyle factors and RPL. Studies that analysed RPL in the context of BMI, smoking, alcohol and caffeine intake were included. The primary and secondary outcomes were odds of having RPL in the general population and odds of further miscarriage, respectively. Underweight and women with BMI > 25 are at higher odds of RPL in the general population (OR 1.2, 95% CI 1.12–1.28 and OR 1.21, 95% CI 1.06–1.38, respectively). In women with RPL, having BMI > 30 and BMI > 25 has increased odds of further miscarriages (OR 1.77, 95% CI 1.25–2.50 and OR 1.35, 95% CI 1.07–1.72, respectively). The quality of the evidence for our findings was low or very low. Being underweight and BMI > 25 contributes significantly to increased risk of RPL (general population). BMI > 25 or BMI > 30 increases the risk of further miscarriages (RPL population). Larger studies addressing the effects of alcohol, cigarette smoking and caffeine on the risk of RPL with optimisation of BMI in this cohort of women are now needed.

scholarly journals Prognostic Role of miR-221 and miR-222 Expression in Cancer Patients: A Systematic Review and Meta-Analysis

Cancers ◽  
2019 ◽  
Vol 11 (7) ◽  
pp. 970 ◽  
Author(s):  
Gloria Ravegnini ◽  
Sarah Cargnin ◽  
Giulia Sammarini ◽  
Federica Zanotti ◽  
Justo Lorenzo Bermejo ◽  
...  
Keyword(s):  
Systematic Review ◽  
Cancer Patients ◽  
Meta Analysis ◽  
Fine Tuning ◽  
High Expression ◽  
Cochrane Library ◽  
Published Data ◽  
Significant Heterogeneity ◽  
Free Survival

Background: A wealth of evidence has shown that microRNAs (miRNAs) can modulate specific genes, increasing our knowledge on the fine-tuning regulation of protein expression. miR-221 and miR-222 have been frequently identified as deregulated across different cancer types; however, their prognostic significance in cancer remains controversial. In view of these considerations, we performed an updated systematic review and meta-analysis of published data investigating the effects of miR-221/222 on overall survival (OS) and other secondary outcomes among cancer patients. A systematic search of PubMed, Web of Knowledge, and Cochrane Library databases was performed. Hazard ratios (HRs) and 95% confidence intervals (95% CIs) were used to assess the strength of association. Results: Fifty studies, analyzing 6086 patients, were included in the systematic review. Twenty-five studies for miR-221 and 17 studies for miR-222 which assessed OS were included in the meta-analysis. High expression of miR-221 and miR-222 significantly predicted poor OS (HR: 1.48, 95% CI: 1.14–1.93, p = 0.003 and HR: 1.90, 95% CI: 1.43–2.54, p < 0.001, respectively). Subgroup analysis revealed that the finding on miR-221 was not as robust as the one on miR-222. Furthermore, high miR-222 expression was also associated with worse progression-free survival and disease-free survival pooled with recurrence-free survival. Conclusions: The meta-analysis demonstrated that high expression of miR-222 is associated with poor prognosis in cancer patients, whereas the significance of miR-221 remains unclear. More work is required to fully elucidate the role of miR-221 and miR-222 in cancer prognosis, particularly in view of the limitations of existing results, including the significant heterogeneity and limited number of studies for some cancers.

Subclinical hypothyroidism and thyroid autoimmunity in recurrent pregnancy loss: a systematic review and meta-analysis

2020 ◽  
Vol 113 (3) ◽  
pp. 587-600.e1 ◽  
Author(s):  
Allan C. Dong ◽  
Jessica Morgan ◽  
Monica Kane ◽  
Alex Stagnaro-Green ◽  
Mary D. Stephenson
Keyword(s):  
Systematic Review ◽  
Subclinical Hypothyroidism ◽  
Pregnancy Loss ◽  
Recurrent Pregnancy Loss ◽  
Meta Analysis ◽  
Thyroid Autoimmunity

scholarly journals Factor V Leiden 1691G > A mutation and the risk of recurrent pregnancy loss (RPL): systematic review and meta-analysis

2020 ◽  
Vol 18 (1) ◽  
Author(s):  
Mohammad Masoud Eslami ◽  
Majid khalili ◽  
Mina Soufizomorrod ◽  
Saeid Abroun ◽  
Bahman Razi
Keyword(s):  
Systematic Review ◽  
Pregnancy Loss ◽  
Recurrent Pregnancy Loss ◽  
Meta Analysis ◽  
Factor V Leiden ◽  
Factor V

scholarly journals Prognostic Role of Tissue and Circulating MicroRNA-200c in Malignant Tumors: a Systematic Review and Meta-Analysis

2015 ◽  
Vol 35 (3) ◽  
pp. 1188-1200 ◽  
Author(s):  
Yingjie Shao ◽  
Yiting Geng ◽  
Wendong Gu ◽  
Jin Huang ◽  
Honglei Pei ◽  
...  
Keyword(s):  
Systematic Review ◽  
Malignant Tumors ◽  
Early Stage ◽  
Meta Analysis ◽  
Cochrane Library ◽  
Circulating Microrna ◽  
Prognostic Role ◽  
Altered Expression ◽  
High Level

Background: Recently, many studies have shown that microRNAs (miRNA) exhibit altered expression in various cancers and may serve as prognostic biomarkers. We performed a systematic review and meta-analysis to evaluate the prognostic role of miR-200c expression in different cancers. Methods: Studies were recruited by searching PubMed, Embase and the Cochrane Library (last search update was May 2014) and assessed by further quality evaluation. Results: A total of 25 studies dealing with various carcinomas were identified for systematic review. Among them, 18 studies were ultimately included in the meta-analysis. Our results indicated that the expression of tissue miR-200c was not associated with OS and PFS in various carcinomas; however, downregulation of tissue miR-200c did predict poor OS of patients with stage I disease (HR=0.41, 95% CI 0.25-0.68, P=0.001). Furthermore, overexpression of blood miR-200c was significantly related to poor OS and PFS (HR=3.07 95% CI 1.58-5.96 P=0.001, HR=2.26 95% CI 1.66-3.08 P<0.001, respectively), especially in patients with advanced disease. Conclusion: This systematic review and meta-analysis clarified that low expression of miR-200c in primary tissue was significantly associated with poor survival in cancer patients at early stage, whereas a high level of blood miR-200c predicted poor prognosis in patients with advanced tumors.

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