Studies on the changes of serum FSH, LH and prolactin concentrations in pubertal twins
| Autor: | Hiroshi Ibayashi, Taro Wasada, Hajime Nawata, Yasuo Akamine, Ken-Ichi Kato, Toshiharu Motomatsu, H. Oma |
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| Rok vydání: | 1978 |
| Předmět: |
Male
endocrine system medicine.medical_specialty Serum fsh Adolescent Dizygotic twin Radioimmunoassay Twins Biology Endocrinology Pregnancy Internal medicine Age Determination by Skeleton Testis medicine Twins Dizygotic Humans Breast Sexual Maturation Child Menarche Breast development Puberty General Engineering Twins Monozygotic Luteinizing Hormone Prolactin Pubic hair Zygosity medicine.anatomical_structure Double antibody Female Follicle Stimulating Hormone |
| Zdroj: | Endocrinologia japonica. 25(6) |
| ISSN: | 0013-7219 |
| Popis: | The cross-sectional study was undertaken to investigate the correlation of serum gonadotropin levels with physical signs of puberty and also to assess the role of genetic factors in the onset and progression of puberty. Serum concentrations of FSH, LH and prolactin were measured by double antibody radioimmunoassay in 195 monozygotic and 59 dizygotic twin pairs during the years of puberty (12 to 15 years). In boys, serum FSH, LH and prolactin concentrations showed a tendency to increase steadily alone with bone ages (9 to 17 years). The size of testis correlated fairly well with serum LH levels and to some extent with FSH. In the pubic hair stage, a significant difference was observed in serum FSH and LH levels between the groups of PH 1-2 and PH 3 |
| Databáze: | OpenAIRE |
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