SERUM LEVELS OF PROLACTIN, THYROTROPIN, THYROID HORMONES, TRH RESPONSIVENESS, AND MALE REPRODUCTIVE FUNCTION IN INTERMITTENT ISLAMIC FASTING

author

F AZIZI From the Endocrine Research Center and the Department of Medicine, Shaheed Beheshti University of Medical Sciences, Tehran, Islamic Republic of Iran.

Abstract:

During the Islamic lunar month of Ramadan millions of Muslims abstain from drinking and eating from dawn to sunset. The objective of this study was to investigate the effect of intermittent Islamic fasting on reproductive function, hypothalamic-pituitary-thyroid axis and the peripheral metabolism of thyroid hormones in men. We measured serum levels of FSH, LH, testosterone, prolactin, TSH, T4, T3 and T3 uptake, and prolactin and TSH responses to TRH, before, at 10th, 20th and 29th days of Ramadan and four weeks after fasting month was terminated. Subj ects were nine healthy men who fasted 17 hours a day for 29 days. There were no significant changes in serum levels of any of measured hormones during Ramadan. Prolactin and TSH responses to TRH were also unaltered. The only positive finding 'Yas increased serum T4 of 1.5 to 2.8 Ilg/dl and increased free T4 index (FT4I) in five of nine subjects in the last days of Ramadan. We conclude that 1) Intermittent abstinence from food and drink for 17 hr a day, as is observed in Islamic fasting, does not alter male reproductive function, hypothalamic-pituitary-thyroid axis, or peripheral metabolism of thyroid hormones. 2) In some subjects slight increase in serum T4 may occur in the last days of Ramadan.

Upgrade to premium to download articles

Already have an account?login

similar resources

SERUM LEVELS OF PROLACTIN, THYROTROPIN. THYROID HORMONES, TRH RESPONSIVENESS, AND MALE REPRODUCTIVE FUNCTION IN INTERMITTENT ISLAMIC FASTING

full text

serum levels of prolactin, thyrotropin. thyroid hormones, trh responsiveness, and male reproductive function in intermittent islamic fasting

during the islamic lunar month of ramadan millions of muslims abstain from drinking and eating from dawn to sunset. the objective of this study was to investigate the effect of intermittent islamic fasting on reproductive function, hypothalamic-pituitary-thyroid axis and the peripheral metabolism of thyroid hormones in men. we measured serum levels of fsh. lh, testosterone, prolactin, fsh, t4 a...

full text

serum levels of prolactin, thyrotropin, thyroid hormones, trh responsiveness, and male reproductive function in intermittent islamic fasting

full text

Islamic Fasting and Thyroid Hormones

Copyright © 2015, Research Institute For Endocrine Sciences and Iran Endocrine Society. This is an open-access article distributed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/) which permits copy and redistribute the material just in noncommercial usages, provided the original work is properly cited.

full text

islamic fasting and thyroid hormones

full text

Thyroid hormones and male reproductive system

Experimental hypothyroidism during sexual development Testes size and number of spermatozoa in adulthood are determined by postnatal/pubertal proliferation of seminal tubule somatic cell constituents, the Sertoli cells. Cessation of proliferation of Sertoli cells during early development occurs concomitantly with formation of their terminally differentiated population. Transient experimental hy...

full text

My Resources

Save resource for easier access later

Save to my library Already added to my library

{@ msg_add @}

Journal title

Medical Journal of Islamic Republic of Iran

volume 5 issue 3

pages 145- 148

publication date 1991-11

unfollow

{@ msg @}

By following a journal you will be notified via email when a new issue of this journal is published.

Keywords

Hosted on Doprax cloud platform doprax.com