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ORIGINAL ARTICLE
Year : 2019  |  Volume : 14  |  Issue : 1  |  Page : 7-13

Histopathological and histochemical effects of nicotine on the liver and kidney of adult male rats


1 Department of Biology, Center of Basic Sciences and College of Pharmaceutical Sciences and Drug Manufacturing, Misr University for Science and Technology, Almotamyez District, 6th October City, Egypt
2 Department of Pathology, National Research Centre, Dokki, Cairo, Egypt
3 Department of Pathology, Faculty of Medicine, Fayoum University, Fayoum, Egypt

Correspondence Address:
Medhat M Menshawy
Center of Basic Sciences (CBS), Department of Biology, Misr University for Science and Technology, Almotamyez District, 6th October City
Egypt
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/jasmr.jasmr_39_18

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Background/aim Nicotine is the more abundant alkaloid component contained in tobacco. Smoking causes numerous diseases that are associated with anemia. Nicotine is metabolized primarily by the liver, and to a lesser extent, by the kidney. The aim of this study was to investigate the iron distribution and histopathological changes in liver and kidney tissues of rats administered with nicotine. Materials and methods This study was performed on thirty adult male albino rats. Animals were divided into three groups (10 each). Group I served as control rats, which were injected subcutaneously with 1 ml of normal saline; group II rats were injected subcutaneously with nicotine at a dose of 0.25 mg/kg/day; and group III rats were injected subcutaneously with nicotine at a dose of 0.5 mg/kg/day for 8 weeks. At the end of the experiment, the animals were killed under ether anesthesia. Liver and kidney tissues specimens were prepared by routine histological procedures and examined under a light microscope. Results Injection with nicotine showed iron deposition inside the liver sinusoids, seen as green bluish stain. In addition, scattered iron intracellular deposition appeared as scattered bluish dots in kidney. Histopathological examination of liver specimens from rats injected subcutaneously with nicotine showed mononuclear cell infiltration and that some of the hepatocytes had a hyperchromatic nucleus and enlarged sinusoids as compared with the control ones. However, kidney specimens showed some vacuolated tubular cells, few dilated tubules, and the presence of intraluminal casts in some tubules. Conclusion This study indicated that subcutaneous injection of nicotine causes iron deposition in the liver and kidney and is associated with structural damage.


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