effects of cypermethrin on sexual behaviour and plasma concentrations of pituitary-gonadal hormones
نویسندگان
چکیده
background: pyrethroids are commonly used as insecticides for both household and agricultural applications, and have recently been linked to endocrine disruption. cypermethrin is a type п pyrethroid which is used widely throughout the world. the present study was aimed to investigate the effects of cypermethrin on the sexual behaviour and plasma level of pituitary-gonadal hormones of adult male mice. materials and methods: research methodology comprised injecting mice daily with cypermethrin (10, 15, 20 mg/kg i.p.) or dmso (0.2 ml) for five weeks. receptive female mice were used to test male sexual behaviors (sniffing, following, mounting, and coupling). plasma concentrations of testosterone, luteinizing hormone (lh) and follicle stimulation hormone (fsh) were measured after five weeks treatment using the elisa method. results: the results of the present study showed that cypermethrin-treated groups exhibited reduced sexual behavior when compared with the control group. assay results demonstrate significantly reduced serum testosterone levels (p<0.05) versus the control group, whereas fsh and lh values increased significantly. conclusion: this study demonstrates that cypermethrin reduces plasma testosterone concentrations and thus is able to disrupt sexual behaviours.
منابع مشابه
Effects of Cypermethrin on Sexual Behaviour and Plasma Concentrations of Pituitary-Gonadal Hormones
Background Pyrethroids are commonly used as insecticides for both household and agricultural applications, and have recently been linked to endocrine disruption. Cypermethrin is a type П pyrethroid which is used widely throughout the world. The present study was aimed to investigate the effects of cypermethrin on the sexual behaviour and plasma level of pituitary-gonadal hormones of adult male ...
متن کاملEffects of Prenatal Lipopolysaccharide Exposure on Reproductive Activities and Serum Concentrations of Pituitary-Gonadal Hormones in Mice Offspring
متن کامل
the effects of planning on accuracy and complexity of iranian efl students’ written narrative task performance
this study compared the different effects of form-focused guided planning vs. meaning-focused guided planning on iranian pre-intermediate students’ task performance. the study lasted for three weeks and concentrated on eight english structures. forty five pre-intermediate iranian students were randomly assigned to three groups of guided planning focus-on-form group (gpfg), guided planning focus...
15 صفحه اولthe effects of time planning and task complexity on accuracy of narrative task performance
هدف اصلی این تحقیق بررسی تاثیر برنامه ریزی زمانی، هم چنین افزایش میزان پیچیدگی تکالیف در نظر گرفته شده بصورت همزمان، بر دقت و صحت و پیچیدگی عملکرد نوشتاری زبان آموزان می باشد. بدین منظور، 50 نفر از دانش آموزان دختر در رده ی سنی 16 الی 18 سال به عنوان شرکت کنندگان در این زمینه ی تحقیق در نظر گرفته شدند و به دو گروه آزمایشی و کنترل بصورت اتفاقی تقسیم شدند. اعضای گروه آزمایشی هر دو تکلیف ساده و پی...
effects of prenatal lipopolysaccharide exposure on reproductive activities and serum concentrations of pituitary-gonadal hormones in mice offspring
0
متن کاملthe effects of previewing and providing background knowledge on iranian university efl learners’ comprehension of literary and academic texts
abstract poor reading comprehension can result in failure in using references, benefiting from professional gatherings and resources, keeping up with the growing body of knowledge in the virtual world of the internet, and failing to achieve in efl programs. the purpose of the present quasi-experimental study was to explore the effects of background knowledge and previewing narrative and expos...
15 صفحه اولمنابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
international journal of fertility and sterilityجلد ۴، شماره ۱، صفحات ۲۳-۲۸
میزبانی شده توسط پلتفرم ابری doprax.com
copyright © 2015-2023