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Alterations in the Plasma Thyroid and Cortisol Hormones in Yellowfin Sea bream, Acanthopagrus latus, following exposure to Benzo(α)Pyrene | ||
| Pollution | ||
| مقاله 7، دوره 2، شماره 1، فروردین 2016، صفحه 77-82 اصل مقاله (544.01 K) | ||
| نوع مقاله: Original Research Paper | ||
| شناسه دیجیتال (DOI): 10.7508/pj.2016.01.008 | ||
| نویسندگان | ||
| Rashid Alijani Ardeshir* 1؛ Sara Rastgar2؛ Abdol-Ali Movahedinia2؛ Zahra Yarahmadi2 | ||
| 1Department of Marine Biology, Faculty of Marine Sciences, Khorramshahr University of Marine Science and Technology, Khorramshahr, P.O. Box: 669, Iran | ||
| 2Department of Marine Biology, Faculty of Marine Sciences, Khorramshahr University of Marine Science and Technology, Khorramshahr, P.O.Box:669, Iran | ||
| چکیده | ||
| The goal of this research is to study the effect of benzo-alpha-pyrene (BαP) as a pollutant on the plasma levels of cortisol, thyroxin (T4), and triiodothyronine (T3) hormones, and the T3/T4 ratio in the yellowfin sea bream, Acanthopagrus latus. The BαP (50 mg kg-1) in vegetable oil was peritoneally injected. Blood samples were obtained from the treated and control groups after 3 and 72 hr, respectively. The amounts of cortisol, T3, and T4 were measured using the ELISA techniques. The results showed that during both the 3 and 72 hr BαP exposures, the T4 hormone levels significantly decreased, although the cortisol levels increased (P<0.05). However, the T3 hormone levels and T3/T4 ratios compared with their control groups showed a significant difference just after 72 hr (P<0.05). The disruptive effects of the BαP exposure on T4 was stronger than that on the T3, being more evident in long-term stress. Thus, the BαP exerts a significant effect on the thyroid endocrine system and consequently on fish metabolism and growth. | ||
| کلیدواژهها | ||
| BαP؛ Cortisol؛ sea bream؛ thyroxin؛ triiodothyronine | ||
| مراجع | ||
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