Association of mir-196a-2 rs11614913 and mir-149 rs2292832 Polymorphisms With Risk of Cancer: An Updated Meta-Analysis

Background: Accumulating evidence suggests that functional dysregulations of miRNAs, especially miR-196a-2 and miR-149, in cancers could be attributed to polymorphisms in miRNA sequences. This study was aimed at clarifying the association of mir-196a-2 rs11614913 and mir-149 rs2292832 with cancer risk by performing an updated meta-analysis of genetic association studies.Methods: PubMed, Embase, Scopus, and ScienceDirect databases were searched until 9 April 2018 to identify eligible studies. Studies should meet the following criteria to be included in the meta-analysis: evaluation of genetic association between rs11614913 and/or rs2292832 and susceptibility to cancer; A case-control design; Written in English; Availability of sufficient data for estimating odds ratio (OR) and its 95% confidence interval (95%CI). Studies that met the following criteria were excluded: review articles, meta-analysis, abstracts or conference papers; duplicate publications; studies on animals or cell-lines; studies without a case-control design; studies that did not report genotype frequencies. Pooled ORs and 95% CIs were estimated using a total of 111 studies (41,673 cases and 49,570 controls) for mir-196a rs11614913 and 44 studies (15,954 cases and 19,594 controls) for mir-149 rs2292832. Stratified analysis according to quality scores, genotyping method, ethnicity, broad cancer category and cancer type was also performed.Results: Mir-196a-2 rs11614913 T allele was associated with decreased cancer risk in overall population. The association was only significant in Asians but not Caucasians. In subgroup analysis, significant associations were found in high quality studies, gynecological cancers, ovarian, breast, and hepatocellular cancer. Mir-149 rs2292832 was not associated with cancer risk in overall population and there were no differences between Asians and Caucasians. However, the T allele was associated with a decrease risk of gastrointestinal tract cancers under the heterozygote model and an increased risk of colorectal cancer under the recessive model.Conclusions: The present meta-analysis suggests that mir-196a-2 rs11614913 may contribute to the risk of cancer especially in Asians. Mir-149 rs2292832 may modulate the risk of gastrointestinal tract cancers especially colorectal cancer. This study had some limitations such as significant heterogeneity in most contrasts, limited number of studies enrolling Africans or Caucasians ancestry and lack of adjustment for covariates and environmental interactions

EFFECT OF WATER MELON SEEDS EXTRACTS (Citrullus vulgaris) ON SPERMS IN DIABETIC RAT.

Citrullus vulgaris is an antioxidant and has been shown to reduce oxidative stress. Previous studies confirmed that antioxidants have essential effect on infertility through participating in reactive oxygen’s species. Chronic hyperglycemia is known to cause infertility in diabetes disease. Wistar male rats (n=40) were allocated into three groups: control group(n=10), Citrullus vulgaris seeds extract (CVE) group that received 55mg/kg by gavage method (n=10), and Diabetic group that received 55mg/kg (IP) streptozotocin (STZ) (n=20). The last group was subdivided into two groups of 10. STZ group and treatment group. Treatment group received 55mg/kg (IP) STZ plus 55mg/kg CVE, daily for 4weeks; however, the control group just received an equal volume of (0.9% NaCl) daily (gavage). Diabetes was induced by a single (IP) injection of streptozotocin (55mg/kg). Animals were kept in standard condition. In 28th day, 5cc bloodn sample was taken from every rat for biochemical analysis. Collecting epididymis tissues, they were prepared for sperm analysis by WHO method. In comparison to other groups, sperm parameters were significantly increased in groups that received 55mg/kg (CVE) (

The Effectiveness of Herbal Mixture Supplements with and without Clomiphene Citrate in Comparison to Clomiphene Citrate on Serum Antioxidants and Glycemic Biomarkers in Women with Polycystic Ovary Syndrome Willing to Be Pregnant: A Randomized Clinical Trial

This paper aimed to evaluate the effect of herbal mixture (Mentha spicata, Zingiber officinale, Cinnamomum zeylanicum, and Citrus sinensis) only and along with clomiphene citrate (CC) compared to CC on serum antioxidants, glycemic status, menstrual regulation, and rate of pregnancy. This single-blind randomized clinical trial was carried out on 60 infertile participants with polycystic ovary syndrome (PCOS) willing to be pregnant. They were randomly allocated into group 1 (n = 20) who received routine dose of CC pills (50–150 mg) for three menstrual cycles from the fifth day of menstruation for five days; group 2 (n = 20) who consumed herbal mixture daily (700 mg); and group 3 (n = 20) who used up herbal mixture along with CC for 3 months. Catalase (CAT), glutathione peroxidase (GPx), superoxide dismutase (SOD), malondialdehyde (MDA), fasting blood sugar (FBS), insulin, and homeostatic model assessment for insulin resistance (HOMA-IR) were measured in their blood samples. No statistically significant differences were observed between the three groups in terms of socio-demographic characteristics. After intervention, however, the levels of CAT in group 2 (adjusted mean difference (aMD): = 9.0; confidence interval (CI) 95% = 1.1–16.9) and group 3 (aMD = 12.2; CI 95% = 4.5–19.9), GPx in group 2 (aMD = 986.1; CI 95% = 141.1–1831.1) and group 3 (aMD = 1781.2; CI 95% = 960.7–2601.8), and SOD in group 2 (aMD = 55.1; CI 95% = 26.0–84.2) increased. While FBS in group 3 (aMD = −8.7; CI 95% = −14.7 to −2.7), insulin in group 2 (aMD = −5.6; CI 95% = −10.8 to −0.4), and HOMA-IR in group 2 (aMD = −1.3; CI 95% = −2.4 to −0.2) significantly decreased compared to the group 1. To summarize, herbal mixture supplements along with CC have beneficial effects on serum antioxidant levels, as well as glycemic biomarkers of infertile PCOS, menstrual regulation, and pregnancy rate

Effect of Developmental Care on Preterm Neonates’ Neurodevelopmental Outcomes at 12 Months of Age

Background: Premature birth and subsequent admission to the neonatal intensive care unit (NICU) may impair the neurodevelopment of neonates. The present study aimed to determine the effect of developmental care on neurodevelopmental outcomes of newborns.Methods: This quasi-experimental study was conducted on 105 premature neonates (in three groups of 35 newborns). The control group received conventional care, and the intervention group 1 received developmental care beginning since admission to NICU stay. In addition, the intervention group 2 received developmental care since entering the delivery or operating room. The developmental outcomes were evaluated based on the Ages and Stages Questionnaire (ASQ) and Bayley-III Scales of Infant and Toddler Development. Moreover, magnetic resonance imaging was performed to evaluate the brain myelination at the adjusted age of 12 months.Results: The obtained findings showed that the frequency rates of communication and language impairment were significantly lower in the intervention group 2, compared to those reported for the control group and intervention group 1, based on the ASQ. The comparison of the scores of the Bayley subscales (i.e., cognition, language, and motor) showed that the frequency of language impairment was significantly higher in the control group, compared to those reported for the intervention group 1 (P=0.012) and intervention group 2 (P=0.024). No significant difference was observed in terms of the neonates’ brain myelination (P>0.05).Conclusion: The obtained results showed that developmental care, especially when initiated since birth, may improve some aspects of developmental outcomes in preterm newborns

Hormonal and metabolic effects of polyunsaturated fatty acid (omega-3) on polycystic ovary syndrome induced rats under diet

Objective(s): PCOS (polycystic ovary syndrome) produces symptoms in approximately 5% to 10% of women of reproductive age (12–45 years old). It is thought to be one of the leading causes of female subfertility. This study aimed to confirm the role of nutrition containing omega-3 (polyunsaturated fatty acid) on control of experimental PCO induced by estradiol-valerat in rats. Materials and Methods: Wistar female rats (n=40) were allocated into control (n=10) and test groups (n= 30), test group was subdivided into 3 groups: G1, received omega-3 (240 mg/kg/orally/daily); G2 and G3 groups were induced PCO by single injection of estradiol-valerate (16 mg/kg/IM). Group 3 received omega-3 (240 mg/kg/orally/daily) and low carbohydrate feeding for 60 subsequent days; on sixtieth day 5 ml blood samples and ovarian tissues of all rats in the group were removed and prepared for biochemical and hormonal analysis. Results: Catalase, GPX (Glutathione peroxidase), SOD (Superoxide dismutase) in groups that received omega-3showed higher levels, but MDA (malondialdehyde) level was significantly decreased (

Psychosocial Factors Associated with Polycystic Ovary Syndrome: a Case Control Study

Introduction: Polycystic ovary syndrome (PCOS) is a disorder in women of reproductive age. Psychosocial factors can play a role in PCOS. Methods: To determine the psychosocial factors associated with PCOS in a case control study, 742 PCOS cases were compared to 798 women without PCOS for psychiatric disorders and social conditions. The data were collected using a validated questionnaire of the Minnesota Multiphasic Personality Inventory (MMPI). The Primary Care Evaluation of Mental Disorders. Patient Health Questionnaire (DSM-IV) was used to diagnose major psychopathological disorders and other depressive and anxiety syndromes. The suspected psychopathology was evaluated by a clinical psychiatrist. Results: There was a significant difference between cases and controls in education level (71.8% vs. 80.4%; (P<0.001), and employment status (60% vs. 53%; P=0.01) (respectively). Chronic anxiety (35.7% vs. 26.8%; P<0.001), depression (18.9% vs. 7.9 %; P<0.001), anxiety disorders (7.7% vs. 3.3%; P<0.001), and personality disorders (2.9% vs. 1.7%; P=0.01), were higher in the PCOS patients compared controls, respectively.Conclusion: The results showed that chronic anxiety and depression were the most pscycologic pattern in PCO patients. Lower educational level and unemployment were higher in the cases than controls

Evidences from a Systematic Review and Meta-Analysis Unveil the Role of MiRNA Polymorphisms in the Predisposition to Female Neoplasms

Breast (BCa) and gynecological (GCa) cancers constitute a group of female neoplasms that has a worldwide significant contribution to cancer morbidity and mortality. Evidence suggests that polymorphisms influencing miRNA function can provide useful information towards predicting the risk of female neoplasms. Inconsistent findings in the literature should be detected and resolved to facilitate the genetic screening of miRNA polymorphisms, even during childhood or adolescence, and their use as predictors of future malignancies. This study represents a comprehensive systematic review and meta-analysis of the association between miRNA polymorphisms and the risk of female neoplasms. Meta-analysis was performed by pooling odds-ratios (ORs) and generalized ORs while using a random-effects model for 15 miRNA polymorphisms. The results suggest that miR-146a rs2910164 is implicated in the susceptibility to GCa. Moreover, miR-196a2 rs11614913-T had a moderate protective effect against female neoplasms, especially GCa, in Asians but not in Caucasians. MiR-27a rs895819-G might pose a protective effect against BCa among Caucasians. MiR-499 rs3746444-C may slightly increase the risk of female neoplasms, especially BCa. MiR-124 rs531564-G may be associated with a lower risk of female neoplasms. The current evidences do not support the association of the remaining polymorphisms and the risk of female neoplasms