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FATEMI, F., KAZEMNEJAD, S., DADKHAH, A., RAHMATI, M., ALLAMEH, A.. (1385). DIFFERENTIAL EFFECTS OF ACETAMINOPHEN AND AFLATOXIN B1 ON EXPRESSION OF LIVER CLASS-P GLUTATHIONE S-TRANSFERASE IN GROWING RATS. , 31(1), 43-52. doi: 10.22099/ijsts.2007.2315
F. FATEMI; S. KAZEMNEJAD; A. DADKHAH; M. RAHMATI; A. ALLAMEH. "DIFFERENTIAL EFFECTS OF ACETAMINOPHEN AND AFLATOXIN B1 ON EXPRESSION OF LIVER CLASS-P GLUTATHIONE S-TRANSFERASE IN GROWING RATS". , 31, 1, 1385, 43-52. doi: 10.22099/ijsts.2007.2315
FATEMI, F., KAZEMNEJAD, S., DADKHAH, A., RAHMATI, M., ALLAMEH, A.. (1385). 'DIFFERENTIAL EFFECTS OF ACETAMINOPHEN AND AFLATOXIN B1 ON EXPRESSION OF LIVER CLASS-P GLUTATHIONE S-TRANSFERASE IN GROWING RATS', , 31(1), pp. 43-52. doi: 10.22099/ijsts.2007.2315
FATEMI, F., KAZEMNEJAD, S., DADKHAH, A., RAHMATI, M., ALLAMEH, A.. DIFFERENTIAL EFFECTS OF ACETAMINOPHEN AND AFLATOXIN B1 ON EXPRESSION OF LIVER CLASS-P GLUTATHIONE S-TRANSFERASE IN GROWING RATS. , 1385; 31(1): 43-52. doi: 10.22099/ijsts.2007.2315

DIFFERENTIAL EFFECTS OF ACETAMINOPHEN AND AFLATOXIN B1 ON EXPRESSION OF LIVER CLASS-P GLUTATHIONE S-TRANSFERASE IN GROWING RATS

Iranian Journal of Science
مقاله 6، دوره 31، شماره 1، اردیبهشت 2007، صفحه 43-52    اصل مقاله (543.37 K)
نوع مقاله: Regular Paper
شناسه دیجیتال (DOI): 10.22099/ijsts.2007.2315
نویسندگان
F. FATEMI؛ S. KAZEMNEJAD؛ A. DADKHAH؛ M. RAHMATI؛ A. ALLAMEH*
Department of Clinical Biochemistry, Faculty of Medical Sciences, Tarbiat Modares University, P. O. Box 14115-331, Tehran, I. R. of Iran
چکیده
Glutathione S-transferase (GST) is a superfamily enzyme which plays a major role in
detoxification of xenobiotic compounds by catalyzing the conjugation of xenobiotic to cellular glutathione
(GSH). GST-P is an important class of GSTs which is expressed during the early stage of life and during
developmental stages. Its activity is relatively high during embryogenesis and immediately after birth and
diminished in normal adult rat liver. To investigate the effects of hepatotoxic agents such as acetaminophen
(APAP) and aflatoxin B1 (AFB1) on liver GST-P in rats during postnatal age, suckling rats age (14±2 days
old) were divided into groups (n=5) and treated with both APAP (250 or 450 mg/kg B.W) and AFB1 (3
mg/kg B.W). Livers were removed at different time intervals (2, 6, 12, 18 and 24 h) and processed for GST
and GST-P activity at protein and mRNA levels (RT-PCR). Administration of a single high dose of AFB1 (3
mg/kg BW) and APAP (450 mg/kg BW) to weanling rats caused a significant (P< 0.05) induction in total
GST activity in developing rats. Based on the Western blotting technique and GST-P specific mRNA
amplification by RT-PCR, the GST-pi protein level and its expression were not affected by APAP or AFB1.
Despite the inducible effects of AFB1 and APAP on liver total GST activity, GST-P remained unaffected in
response to the drugs at protein and mRNA levels.
کلیدواژه‌ها
Acetaminophen؛ aflatoxin B1؛ glutathione S-transferases؛ Expression
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