OBJECTIVE To evaluate the influence of dietary fibre on menarche in a cohort of pre-menarcheal girls. DESIGN Prospective cohort study. SETTING Ontario, Canada. SUBJECTS Free-living pre-menarcheal girls (n = 637), 6 to 14 years of age. METHODOLOGY Information on dietary intake, physical activity and date of menarche was collected at baseline and was updated annually by self-administered ...

Received: November 21st, 2011 Accepted for Publication: November 28th, 2011 _________________________ ABSTRACT _____________________________________________________________ Background: Several studies suggest that menarche tends to appear earlier in life as sanitary, nutritional and economic conditions of a society improve. Aim / Objective: To determine the age at menarche amongst secondary sch...

Background: menarche is one of the most significant milestones in a woman’s life with nutritional status being one of the important non genetic determinants of menarcheal age. Objective: to determine the relationship between age at menarche and anthropometric measurements among adolescent secondary school girls in Port Harcourt, Nigeria. Methods: four hundred and seventy nine adolescent girls w...

BACKGROUND Twin studies have shown that age at menarche may be subject to hereditary influences but the specific determinants are unknown. Estrogens are known to have an important role in menarche. Since the enzyme aromatase is responsible for the conversion of androgens to estrogens, the aromatase (CYP19) gene could be a candidate gene for the regulation of menarche. The aim of this study was ...

Objective: Puberty is the most prominent stage of life. The purpose of this study was to evaluate effects of puberty health education on promoting of its awareness in girls. Methods: In an interventional quasi-experimental study (pre and post test), awareness, attitude and practice of 500 high school first grade student girls evaluated before and after health education in Yazd in 20042005 . Res...

OBJECTIVE More than 30 years ago Frisch and Revelle proposed a body weight threshold for the onset of menarche. Based on this hypothesis, a further acceleration of age at menarche can be expected in times of childhood obesity. DESIGN A cross-sectional study of 1840 healthy school girls (Berlin school children's cohort, BSCOC) within the age groups 10-15 years was conducted in 2006-2007. MET...

BACKGROUND/OBJECTIVES Menarche, the first menstrual period, is influenced by many factors including socio-economic status and rural or urban dwelling. The aims of the study were to compare the age at menarche between rural and urban girls and evaluate the anthropometric indices at menarche. MATERIALS AND METHODS A cross-sectional study of rural secondary school girls and urban school girls. A...

In girls, low birth weight (LBW), when followed by postnatal catch-up growth, is accompanied by endocrine-metabolic abnormalities which include a more adipose body composition (with increased visceral fat), insulin resistance and a less favorable adipokine profile as early as in the pre-school age. These girls also exhibit follicle-stimulating hormone hypersecretion both in early infancy and ea...

BACKGROUND In Chile, indigenous and non-indigenous schoolchildren have the same stature when they begin school but indigenous adults are shorter, indicating the importance of analyzing growth during puberty. The aim of this study was to compare the growth of indigenous and non-indigenous girls during the 36 months after menarche in Chile's Araucanía Region. METHODS A concurrent cohort study w...

Background Premature adrenarche (PA) has been linked to early thelarche and menarche, but longitudinal data on growth and pubertal development after PA are insufficient. Methods Growth and pubertal development of mostly full-term and appropriate for gestational age-born 43 PA (36 girls) and 63 control children (52 girls) were analyzed prospectively. Children examined first at the mean age of ...