OBJECTIVE To provide clinically meaningful, normative reference data that describe the timing of sexual maturity indicators among a national sample of US children and to determine the degree of racial/ethnic differences in these estimates for each maturity indicator. METHODS Tanner staging assessment of sexual maturity indicators was recorded from 4263 non-Hispanic white, black, and Mexican A...

early and regular blood transfusion therapy in patients with homozygous beta-thalassemia decreases the complications of severe anemia and prolongs survival. in the long term, however, the beneficial effects of transfusions are limited by the organ damage resulting from iron overload. endocrine complications in patients with thalassemia major in developing countries may be frequent due t o subop...

introduction: genetic and health factors along with ethnicity and geographic location are factors that affect the time of puberty onset. the aim of the present study was to evaluate the mean age of onset of puberty and its stages in boys of yazd. methods: this cross- sectional study with random clustering sampling method was conducted on 1018 healthy 9-16 years old male students of yazd. all ca...

The grey mullet fingerling were imported to Iran in 1997 from Hong Kong and in coastal fish pond of north part of Iran were successfully cultured in order to obtain broodstocks and induce artificial reproduction. Seasonal changes in serum concentrations of Testosterone, 17-β Estradiole (E2), 17-α Hydroxy Progesterone and also the level of calcium, Triglyceride and cholesterol in females grey mu...

in the present study histological studies was conducted after the female abramis brama orientalis was exposed to eight treatment phases in which lhrha2 (3 μg/kg), metoclopramide (5 mg/kg), and chlorpromazine (10 mg/kg) were inoculated. the treatments were characterized by combined and solitary injections, control group (o injection), and experimental group (saline). the results showed that all ...

The grey mullet fingerling were imported to Iran in 1997 from Hong Kong and in coastal fish pond of north part of Iran were successfully cultured in order to obtain broodstocks and induce artificial reproduction. Seasonal changes in serum concentrations of Testosterone, 17-β Estradiole (E2), 17-α Hydroxy Progesterone and also the level of calcium, Triglyceride and cholesterol in femal...

Early and regular blood transfusion therapy in patients with homozygous beta-thalassemia decreases the complications of severe anemia and prolongs survival. In the long term, however, the beneficial effects of transfusions are limited by the organ damage resulting from iron overload. Endocrine complications in patients with thalassemia major in developing countries may be frequent due t o ...

Background: Subjective well-being and satisfaction with life can help individuals to achieve more success in their lives and enjoy better supportive social relationships and higher levels of physical and mental health. The present study aimed to determine the relationship of social maturity with sexual satisfaction, well-being, and controlling behaviors through the mediating role of marital com...

The orthodontic treatment is most favorable and effective during growth and hence the assessment of growth is significant in treatment planning for dental and maxillofacial malocclusion [1,2]. Several features such as body height, weight and sexual characteristics, dental and skeletal development are used to evaluate the pubertal growth. The stage of tooth maturation can determine the dental ma...

BACKGROUND Few human studies have evaluated the impact of childhood exposure to organochlorine pesticides (OCP) on pubertal development. OBJECTIVE We evaluated associations of serum OCP concentrations [hexachlorobenzene (HCB), β-hexachlorocyclohexane (βHCH), and p,p-dichlorodiphenyldichloroethylene (p,p´-DDE)] with age at attainment of sexual maturity among boys. METHODS From 2003 through 2...