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The effect of adrenomedullin on rats exposed to lead.
J Appl Toxicol. 2008 Mar; 28(2):140-6.JA

Abstract

Adrenomedullin (AdM) was originally discovered as a vasorelaxant peptide. The antioxidative properties of AdM have been reported recently. Through its antioxidative effect, adrenomedullin can protect organs from damage induced by stressors. Lead, commonly detected in air, soil, water and food, is a major source of oxidative stress. The effect of AdM in the liver of rats exposed to lead was investigated. Twenty-four female Wistar rats were divided into four groups: a control group (C), adrenomedullin group (AdM), lead (Pb) group and lead + adrenomedullin (Pb + AdM) group. In the Pb-treated groups, the animals were exposed to lead in drinking water containing 250 ppm PbCl2 for 4 weeks. In the AdM-treated group, the animals received an i.p. injection of AdM (3000 ng kg(-1) body weight) in the third week of lead treatment for 1 week. The activities of catalase (CAT), glutathione peroxidase (GSH-Px) and superoxide dismutase (SOD) and the level of malondialdehyde (MDA) were determined in the liver of rats. Histological changes in the liver were examined by light and electron microscopy as well. The MDA levels were increased significantly in the Pb-treated groups, but in the Pb + AdM group the MDA levels were decreased significantly when compared with the Pb group. AdM reduced hepatic damage in the Pb + AdM group, but the difference in the total histopathological scores between the Pb and Pb + AdM groups was not significant. When the results are taken together, it can be concluded that AdM may have protective or compensating effects in lead toxicity.

Authors+Show Affiliations

Department of Biology, Arts and Science Faculty, Inonu University, Malatya, 44280, Turkey.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

17503410

Citation

Dogru, Mehmet Ilker, et al. "The Effect of Adrenomedullin On Rats Exposed to Lead." Journal of Applied Toxicology : JAT, vol. 28, no. 2, 2008, pp. 140-6.
Dogru MI, Dogru AK, Gul M, et al. The effect of adrenomedullin on rats exposed to lead. J Appl Toxicol. 2008;28(2):140-6.
Dogru, M. I., Dogru, A. K., Gul, M., Esrefoglu, M., Yurekli, M., Erdogan, S., & Ates, B. (2008). The effect of adrenomedullin on rats exposed to lead. Journal of Applied Toxicology : JAT, 28(2), 140-6.
Dogru MI, et al. The Effect of Adrenomedullin On Rats Exposed to Lead. J Appl Toxicol. 2008;28(2):140-6. PubMed PMID: 17503410.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - The effect of adrenomedullin on rats exposed to lead. AU - Dogru,Mehmet Ilker, AU - Dogru,Arzu Kocagun, AU - Gul,Mehmet, AU - Esrefoglu,Mukaddes, AU - Yurekli,Muhittin, AU - Erdogan,Selim, AU - Ates,Burhan, PY - 2007/5/16/pubmed PY - 2008/5/9/medline PY - 2007/5/16/entrez SP - 140 EP - 6 JF - Journal of applied toxicology : JAT JO - J Appl Toxicol VL - 28 IS - 2 N2 - Adrenomedullin (AdM) was originally discovered as a vasorelaxant peptide. The antioxidative properties of AdM have been reported recently. Through its antioxidative effect, adrenomedullin can protect organs from damage induced by stressors. Lead, commonly detected in air, soil, water and food, is a major source of oxidative stress. The effect of AdM in the liver of rats exposed to lead was investigated. Twenty-four female Wistar rats were divided into four groups: a control group (C), adrenomedullin group (AdM), lead (Pb) group and lead + adrenomedullin (Pb + AdM) group. In the Pb-treated groups, the animals were exposed to lead in drinking water containing 250 ppm PbCl2 for 4 weeks. In the AdM-treated group, the animals received an i.p. injection of AdM (3000 ng kg(-1) body weight) in the third week of lead treatment for 1 week. The activities of catalase (CAT), glutathione peroxidase (GSH-Px) and superoxide dismutase (SOD) and the level of malondialdehyde (MDA) were determined in the liver of rats. Histological changes in the liver were examined by light and electron microscopy as well. The MDA levels were increased significantly in the Pb-treated groups, but in the Pb + AdM group the MDA levels were decreased significantly when compared with the Pb group. AdM reduced hepatic damage in the Pb + AdM group, but the difference in the total histopathological scores between the Pb and Pb + AdM groups was not significant. When the results are taken together, it can be concluded that AdM may have protective or compensating effects in lead toxicity. SN - 0260-437X UR - https://www.unboundmedicine.com/medline/citation/17503410/The_effect_of_adrenomedullin_on_rats_exposed_to_lead_ L2 - https://doi.org/10.1002/jat.1259 DB - PRIME DP - Unbound Medicine ER -