<abstract xml:lang="en" xmlns="http://www.w3.org/1999/xhtml"><italic>Phyllanthus niruri</italic> is a plant with medicinal properties. It is often used to treat mild malaria and the elimination of renal stones. However, studies on its toxicity are scarce. The study was carried out to determine if the aqueous leaf extract of <italic>P. niruri</italic> administered to female Sprague-Dawley rats would illicit evidence of toxicity. Fifteen female rats weighing 150-200 g were divided into 3 groups. Rats in Group 1 were given a single low dose (LD) of 2 000 mg/kg b.w. of the extract by oral gavage within 24 hrs. Rats in Group 2 were given a single high dose (HD) of 5 000 mg/kg b.w. of the extract by oral gavage within 24 hrs. Rats in Group 3 were not given any extract but drinking water and served as the control group (C). All the rats were observed for signs of toxidromes for 14 days. On the 15th day, all the rats were sacrificed. Body organs were harvested for macroscopic examination. Urine and blood samples were drawn and analyzed. Hematological tests performed included full blood count and hemoglobin. Biochemical examinations included bilirubin, alanine aminotransferase (ALT), aspartate aminotransferase (AST), total protein, albumin, globulin, alkaline phosphatse (ALP), γ-glutamyltranspeptidase (GGT), urea, and creatinine. The results of the three groups were not significantly different. Examination of the various body organs did not show any abnormality. Thus no toxicity was observed at the levels administered. The LD50 of the aqueous extract is > 5 000 mg/kg. b.w.</abstract>

Phyllanthus niruri is a plant with medicinal properties. It is often used to treat mild malaria and the elimination of renal stones. However, studies on its toxicity are scarce. The study was carried out to determine if the aqueous leaf extract of P. niruri administered to female Sprague-Dawley rats would illicit evidence of toxicity. Fifteen female rats weighing 150-200 g were divided into 3 groups. Rats in Group 1 were given a single low dose (LD) of 2 000 mg/kg b.w. of the extract by oral gavage within 24 hrs. Rats in Group 2 were given a single high dose (HD) of 5 000 mg/kg b.w. of the extract by oral gavage within 24 hrs. Rats in Group 3 were not given any extract but drinking water and served as the control group (C). All the rats were observed for signs of toxidromes for 14 days. On the 15th day, all the rats were sacrificed. Body organs were harvested for macroscopic examination. Urine and blood samples were drawn and analyzed. Hematological tests performed included full blood count and hemoglobin. Biochemical examinations included bilirubin, alanine aminotransferase (ALT), aspartate aminotransferase (AST), total protein, albumin, globulin, alkaline phosphatse (ALP), γ-glutamyltranspeptidase (GGT), urea, and creatinine. The results of the three groups were not significantly different. Examination of the various body organs did not show any abnormality. Thus no toxicity was observed at the levels administered. The LD50 of the aqueous extract is > 5 000 mg/kg. b.w.

Acute toxicity studies of aqueous leaf extract of <italic>Phyllanthus niruri</italic>

University of Ghana School of Allied Health Sciences (SAHS), Korle Bu, Ghana

Noguchi Memorial Institute for Medical Research (NMIMR), Legon, Ghana

Department of Pharmacology, University of Ghana Medical School, Korle Bu, Ghana

Department of Pathology, University of Ghana Medical School, Korle Bu, Ghana

Interdisciplinary Toxicology

Acute toxicity studies of aqueous leaf extract of 

Phyllanthus niruri is a plant with medicinal properties. It is often used to treat mild malaria and the elimination of renal stones. However, studies on its...

Acute toxicity studies of aqueous leaf extract of Phyllanthus niruri

Publié en ligne: 06 févr. 2012

Pages: 206 - 210

DOI: https://doi.org/10.2478/v10102-011-0031-9

Mots clés
acute toxicity, leaf extract

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