The Effect of Aqueous Extract of Dactylorhiza Maculate Root on the Concentration of Hypothalamic-pituitary-thyroid Axis Hormones in Adult Female Rats
Journal Title: International Journal of Medical Research & Health Sciences (IJMRHS) - Year 2016, Vol 5, Issue 5
Abstract
Thyroid is a very important endocrine gland in living organisms which regulates almost all bodily functions. The aim of the presentstudy is to investigate the effect of aqueous extract of Dactylorhiza maculateroots on hypothalamic- pituitary-thyroidaxishormones in adult female rats. Fifty adult female rats were randomly divided into control group, sham group (receiving distilled water) and three experimental groups (receiving aqueous extract of Dactylorhiza maculaterootat a dose of 20, 40 and 80 mg kg-1) each consisting of 10 rats. Intra-peritoneal injections were carried out for 28 days. The injection volume was 2.0 ml in all groups. On the twenty-ninth day, blood samples were taken from the rats to investigate the serum levels of the HPTaxis hormones. Data were analyzed bySPSS (Version 15). Comparisons were carried out employing one-way ANOVA and Duncan's test. The doses of 20 and 40 mgkg-1 of aqueous extract of Dactylorhiza maculaterootshad no significant impact on the serum levels of TRH, TSH, T3 and T4 hormones. However, a dose of 80 mg kg-1 significantly reduced the serumlevels of TRH, TSH, T3 and T4 hormones as compared to the control group (P <0.05). According to the results, reduction of hypothalamic-pituitary-thyroid axis hormones by aqueous extract of Dactylorhiza maculateis dose-dependent. Thus,Dactylorhiza maculatecan be usedas an alternative to chemical drugs in the treatment of hyperthyroidism.
Authors and Affiliations
Hossein Kargar Jahromi| Zoonoses Research Center, Jahrom University of Medical Sciences, Jahrom, Iran, Hojatollah Karimi Jashni| Research Center for Noncommunicable Diseases, Faculty of Medicine, Jahrom University of Medical Sciences, Jahrom, Iran, Corresponding E-mail: hojat_karimi@yahoo.co.in, Hadi Sameni| Research Center for Noncommunicable Diseases, Faculty of Medicine, Jahrom University of Medical Sciences, Jahrom, Iran, Hassan Ali Abedi| Research Center for Noncommunicable Diseases, Faculty of Medicine, Jahrom University of Medical Sciences, Jahrom, Iran, Zahra Kargar Jahromi| Zoonoses Research Center, Jahrom University of Medical Sciences, Jahrom, Iran, Zahra Khabbaz Kherameh| Young Researchers and Elite Club, Islamic Azad University, Jahrom Branch, Jahrom, Iran
Keywords
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