steroid hormones level in milk of non-pregnant and pregnant river buffalos at various gestational trimesters
نویسندگان
چکیده
background: milk is a valuable sources of nutrition in the human diet however; there are reports on safety of milk steroid hormones contain. this study designed to determine the level of steroid hormones including estrone (e1), 17β-estradiol (e2), and estriol (e3) in raw and pasteurized milk from non-pregnant and pregnant buffalos. methods: steroids was extracted using liquid extraction, enzymatical deconjugation, and c18 solid-phase extraction from collected milk samples. estrogens were analyzed using high performance liquid chromatography equipped by fluorescence detector. results: free e1 (554.1±77.0 ng/l) and deconjugated e1 (701.6±44.7 ng/l) was found highest level estrogen followed by e2, while e3 level was under the detection limit (10 ng/l). the lowest e1: 554.1±77.0 and e2: 28.1±4.4ng/l estrogens level were determined in raw milk from non-pregnant and highest e1: 1014.7±123.8 and e2: 108.2±9.1 ng/l estrogens were found in milk of animals in the third trimester of gestation. the estrogens concentration in pasteurized milk did not show significant (p>0.05) differences with those in raw milk. conclusion: as buffalo milk poses more fat than cow's milk, it may contain higher level of steroid hormones. since consumption of buffalo's milk with higher amount of steroidal hormones could be considered one of the potential risk factors for carcinogenesis.
منابع مشابه
Antioxidant Vitamins and Lipoperoxidation in Non-pregnant, Pregnant, and Gestational Diabetic Women: Erythrocytes Osmotic Fragility Profiles
BACKGROUND Inconsistent reports are available in the literature regarding the oxidative status and antioxidant capacity during the pathogenesis of gestational diabetes. Present study was aimed to evaluate oxidative stress during the development of gestational diabetes and to evaluate antioxidant capability in non-pregnant (control), pregnant and gestational diabetics. METHODS The study consis...
متن کاملPregnant Women's Knowledge and Beliefs about the Safety and Outcomes of Delivery at Various Gestational Ages
Objectives Despite the morbidity associated with late preterm and early-term births, there is limited data on pregnant women's perception of neonatal risk based on gestational age (GA). Therefore, our objective was to determine pregnant women's perception of neonatal risks at varying GAs. Method Through an anonymous 24-question survey, pregnant women were asked to designate the GA at delivery...
متن کاملEvaluation of 24-Hour Urine Copper in Preeclamptic Vs. Normotensive Pregnant and Non-Pregnant Women
Background The aim of this study was to evaluate copper status in women with preeclampsia. MaterialsAndMethods Sixty preeclamptic, sixty normotensive pregnant and sixty healthy nonpregnant women were enrolled in a cross sectional study. The 24-hour urine copper was compared among the women. Results There was significant difference in the copper concentration of 24-hour urine among the three gro...
متن کاملEffect of Buthionine Sulfoximine Administration on Serum Glutathione Level in Pregnant and non-Pregnant Mice
Article history: Received: 3 Nov 2011 Accepted: 22 July 2012 Available online: 18 Nov 2012 ZJRMS 2013; 15(5): 9-12 Background: 5TButhionine sulfoximine is an agent that reduces intracellular glutathione and anti-oxidant enzymes and by this means is involved in pathology of some disease. Since low glutathione level may affect embryonic development, the aim of the present study is to investigate ...
متن کاملSocial support in the pregnant and non-pregnant women and its associated dimensions
Background and Purpose: Social support is considered as a facilitator of health behaviors in women. This study aimed to evaluate and compare the status of social support and its associated dimensions in pregnant and non-pregnant women. Methods: This analytical study was conducted on 310 pregnant and non-pregnant women referring to the health-care centers of Zarqan city in Shiraz, Ira...
متن کاملEffects of ovarian steroid hormones and thyroxine on calcitonin secretion in pregnant rats.
In the present study, the roles of ovarian steroid hormones and thyroxine (T4) in regulating the secretion of calcitonin (CT) in pregnant rats were examined. The levels of plasma progesterone, pre- and post-CaCl2plasma CT, and recovery time of plasma CT and calcium after calcium challenge were greatest in midterm pregnant rats. The levels of basal plasma progesterone, CT, calcium, and recovery ...
متن کاملمنابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
مجله دانشگاه علوم پزشکی کرمانشاهجلد ۱۵، شماره ۴، صفحات ۰-۰
میزبانی شده توسط پلتفرم ابری doprax.com
copyright © 2015-2023