| Autor: |
Hallberg MC, Wieland RG, Zorn EM, Furst BH, Wieland JM |
| Jazyk: |
angličtina |
| Zdroj: |
Fertility and sterility [Fertil Steril] 1976 Jul; Vol. 27 (7), pp. 812-4. |
| DOI: |
10.1016/s0015-0282(16)41958-8 |
| Abstrakt: |
The hormonal profile of the aging male reveals an associated decrease in free testosterone and 5 alpha-dihydrotestosterone (DHT) levels and increased luteinizing hormone levels. Later events consist of a decrease in total testosterone, stable DHT, and increased follicle-stimulating hormone and estradiol levels. Although most available information supports the concept of impaired Leydig cell reserve, our study suggests some degree of hypothalamic-pituitary dysfunction. The signal for increased androgen binding with age is not clear. There is a great deal of individual variation in the time of onset of these events. |
| Databáze: |
MEDLINE |
| Externí odkaz: |
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