Candidate Genes for Age at Menarche Are Associated With Uterine Leiomyoma.

Age at menarche (AAM) is an important marker of the pubertal development and function of the hypothalamic-pituitary-ovarian system. It was reported as a possible factor for a risk of uterine leiomyoma (UL). However, while more than 350 loci for AAM have been determined by genome-wide association studies (GWASs) to date, no studies of these loci for their association with UL have been conducted so far.

Candidate genes for age at menarche are associated with endometriosis.

Research Question: Are the candidate genes for age at menarche associated with a risk of endometriosis?

Design: Fifty-two candidate single nucleotide polymorphisms (SNP) for age at menarche, their gene-gene and gene-environment interactions were analysed for possible association with endometriosis in a sample of 395 patients and 981 controls. Association of the polymorphisms was analysed using logistic regression according to three main genetic models (additive, recessive and dominant). The gene-gene and gene-environment interactions were analysed for the second-, third- and fourth-order models with adjustment for covariates and multiple comparisons with subsequent cross-validation.

Candidate genes for age at menarche are associated with endometrial hyperplasia.

Objectives: To study associations candidate genes for age at menarche with a risk of endometrial hyperplasia (EH).

Methods: 52 candidate loci for age at menarche were analyzed for possible association with EH in a sample of 520 patients and 981 controls. Association of the polymorphisms was analyzed using the method of logistic regression.

Unintended pregnancy prevention in women using psychoactive substances: A systematic review.

This systematic review seeks to evaluate the efficacy of interventions aimed at preventing unintended pregnancies in women using psychoactive substances. Seven electronic databases (Medline, EMBASE, CINAHL, Web of Science Core Collection, PsycINFO, Cochrane CENTRAL database) were searched in October 2017. Twenty-two articles met our inclusion criteria.

Dataset of allele and genotype frequencies of five polymorphisms candidate genes analyzed for association with body mass index in Russian women.

Data on the allele and genotype frequencies of the five single nucleotide polymorphisms (SNPs) 5 genes - rs1514175 , rs713586 RBJ, rs887912 , rs2241423 , rs12444979 in Russian women are presented. Several genome-wide association studies identified these SNPs could be significant genetic markers associated with body mass index (BMI). Standard methods were used for collecting of the anthropometric characteristics (height and weight).

Dataset of allele, genotype and haplotype frequencies of four gene polymorphisms analyzed for association with age at menarche in Russian women.

In this paper, we present the allele, genotype and haplotype frequencies of 4 single nucleotide polymorphisms (SNPs) in gene (rs4946651, rs7759938, rs314280, rs314276) in a sample of Russian women. These SNPs had been previously identified to be associated with age at menarche in genome-wide association studies (GWAS). The information about age at menarche was obtained using the questionnaire.

Maternal immigrant status and signs of neurodevelopmental problems in early childhood: The French representative ELFE birth cohort.

A growing body of evidence suggests that children of immigrants may have increased risks of neurodevelopmental disorders. However, evidence based on parent report and on very young children is lacking. We therefore investigated the association between maternal immigrant status and early signs of neurodevelopmental problems in a population-based sample of 2-year-old children using standardized parent-report instruments.

Association of genetic polymorphisms with age at menarche in Russian women.

Objectives: Examine the association of genetic polymorphisms with age at menarche (AAM) in Russian women.

Study Design: A total of 1613 Russian females were recruited for the study. Fifty two polymorphisms were analyzed for their association with AAM, height, and BMI.

Non-genetic risk factors for early and late age at menarche in Eastern Ukrainian females.

BACKGROUND: Age at menarche is a reproductive trait, which is largely influenced by environmental factors. Each population has a set of lifestyle factors that may shift age at menarche in different direction. Populations of Eastern Slavs, particularly Ukrainians, are underrepresented in studies of reproductive health.

UGT2B4 previously implicated in the risk of breast cancer is associated with menarche timing in Ukrainian females.

Age at menarche (AAM) is a multifactorial trait that is regulated by dozens environmental and genetic factors. Recent meta-analysis of GWAS showed significant association of 106 loci with AAM. These polymorphisms need replicating in different ethnic populations in order to confirm their association with menarche timing.

A meta-analysis provides evidence that prenatal smoking exposure decreases age at menarche.

Since studies of association between prenatal tobacco exposure and age at menarche have reported inconsistent results so far, we conducted a meta-analysis to examine this association. In total 36 relevant articles (1995-2014) were identified, 17 of which satisfied the inclusion criteria and were used in the analysis. Nearly one month decrease (-0.

Nongenetic determinants of age at menarche: a systematic review.

Background: The acceleration of pubertal development is an important medical and social problem, as it may result in increased morbidity and mortality in later life. This systematic review summarizes relevant data about nongenetic factors, which contribute to age at menarche (AAM), and suggests those which may be the most important.

Methods: The available literature from 1980 till July 2013 was searched using PubMed and Google Scholar databases.