Effect of lead on thyroid function in sheep
Authors
Abstract:
The objective of this experiment was to determine the effect of long-term low-dose administration of lead (Pb) on thyroid function in sheep. In this experiment 10 healthy Iranian male sheep, aged about oneyear- old were randomly allocated into two equal groups of control (n = 5) and experiment (n = 5). Both groups were kept under the same conditions of food and environment. The treatment group received lead acetate (5 mg/kg/day) orally for 8 weeks. Blood sampling of two groups was done on the same days, on days 0 (before receiving lead acetate in treatment group), 14, 28, 42, 56 and 70 after lead administration, every morning (8 to 9 a.m.). The function of the thyroid was evaluated by measuring the levels of serum thyroid hormones T3, T4, FT3, FT4 and TSH. The hepatic function in both groups was evaluated by measuring hepatic enzyme activities including alanin amino transferase (ALT), aspartate aminotreansferase (AST),γ glutamyl transferase (GGT), and total bilirubin (TBIL). Serum levels of T3 (on days 14, 56 and 70) T4 (on days 14, 28, 42, 56 and 70), FT3 (on days 56 and 70), FT4 (on days 42, 56 and 70) and TSH (on days 14, 28, 42, 56 and 70) significantly decreased in lead-treated sheep when compared to the control group (P
similar resources
effect of lead on thyroid function in sheep
the objective of this experiment was to determine the effect of long-term low-dose administration of lead (pb) on thyroid function in sheep. in this experiment 10 healthy iranian male sheep, aged about oneyear- old were randomly allocated into two equal groups of control (n = 5) and experiment (n = 5). both groups were kept under the same conditions of food and environment. the treatment group ...
full textThe effect of mercury on thyroid function in sheep
The purpose of this experiment was to determine the effect of long-term low-dose administration of mercury (Hg) on thyroid function in sheep. In this experiment, 10 clinically healthy, adult, male Iranian sheep, aged approximately 1 year, were randomly allocated into the control (n=5) and mercury (Hg-)-treated (n=5) groups. Both groups were kept under identical conditions in terms of food and e...
full textthe effect of e-64 on the developmental competence of sheep cocs during in vitro maturation
in the present study, the effect of e-64 at different concentrations (0.5, 1, 5 and 10 µm) added to (1) the ivm medium on oocyte nuclear maturation and developmental competence of ovine oocytes, and (2) to the ivc medium on embryonic development of ovine embryos were investigated.
: the effect of sericin levels (silk glue protein) on rate of in vitro maturation, fertilization and culture of sheep oocytes
هدف از آزمایش اول بررسی اثر سطوح مختلف سریسین [0 (control), 0.1, 0.5, 1.0, 2.5 %] افزوده شده به محیط , ivm بر cumulus cell expansion، بلوغ هسته و توسعه متوالی جنین، در گوسفندان نژاد سنجابی در فصل تولید مثلی می باشد. از سرگیری میوز به وسیله خارج شدن اولین پولار بادی اندازه گیری و هم چنین درصد رسیدن جنین های دو سلولی به مرحله کلیواژ و بلاستوسیت نیز به عنوان نشانه ای از میزان شایستگی توسعه اولیه ج...
the effect of mercury on thyroid function in sheep
the purpose of this experiment was to determine the effect of long-term low-dose administration of mercury (hg) on thyroid function in sheep. in this experiment, 10 clinically healthy, adult, male iranian sheep, aged approximately 1 year, were randomly allocated into the control (n=5) and mercury (hg-)-treated (n=5) groups. both groups were kept under identical conditions in terms of food and e...
full textthe washback effect of discretepoint vs. integrative tests on the retention of content in knowledge tests
در این پایان نامه تاثیر دو نوع تست جزیی نگر و کلی نگر بر به یادسپاری محتوا ارزیابی شده که نتایج نشان دهندهکارایی تستهای کلی نگر بیشتر از سایر آزمونها است
15 صفحه اولMy Resources
Journal title
volume 10 issue 3
pages 223- 227
publication date 2009-09-30
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
copyright © 2015-2023