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The Effects of Ramadan Fasting on the Level of Sex Hormones in Pre-menarche Girls in Mashhad, Iran

فصلنامه تغذیه، روزه داری و سلامت، دوره: 3، شماره: 1
Year: 1394
COI: JR_JNFH-3-1_008
Language: EnglishView: 242
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Shohreh Bahreyni - Metabolic Syndrome Research Center and Department of Nutrition, Mashhad Medical School, Mashhad University of Medical Science, Iran
Mohsen Mazidi - Institute of Genetics and Developmental Biology, International College, University of Chinese Academy of Science (IC-UCAS), Beijing, China
Rahim Vakili - Emam Reza Hospital, Mashhad University of Medical Sciences, Mashhad, Iran
Seyed Isaac Hashemy - Addiction Research Center, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran


The present study aimed to evaluate the effects of Ramadan fasting on the level of sex hormones in girls between 9-13 years before age at menarche. This study was conducted on a sample of 58 subjects (age range: 9-13 years), who were divided into two groups of fasting (N=31) and non-fasting (N=27). The levels of follicle-stimulating hormone (FSH), luteinizing hormone (LH), progesterone and estradiol were measured in all the subjects before and after Ramadan. Measurements were carried out three days before the start of Ramadan, and one day afterwards. In this study, FSH levels significantly increased in the non-fasting group (P=0.01), and the level of Dehydroepiandrostenedione (DHEA) had a significant decrease during the time of study in both groups (P=0.001, P=0.006). In addition, serum levels of LH significantly increased in the non-fasting group after Ramadan (P=0.006), and estradiol significantly increased in both groups (P=0.008, P=0.004). Given the similar changes in the levels of DHEA, progesterone and estradiol in both study groups, it could be concluded that fasting has no effects on these parameters, and the changes in LH and FSHlevels could be due to other contributing factors.


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Bahreyni, Shohreh and Mazidi, Mohsen and Vakili, Rahim and Hashemy, Seyed Isaac,1394,The Effects of Ramadan Fasting on the Level of Sex Hormones in Pre-menarche Girls in Mashhad, Iran,

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