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Keywords:
Felicia muricata hematological parameters serum lipids function indices selective toxicity.
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Toxicological evaluation of the aqueous extract of Felicia muricata Thunb. leaves in Wistar rats
Abstract
The effect of the aqueous extract of Felicia muricata leaves at 50, 100 and 200 mg/kg body weight in Wistar rats was evaluated for 14 days. The extract caused significant increase in white blood cell (WBC)
while it decreased the large unstained cells (LUC). The red blood cell (RBC), packed cell volume (PCV), mean corpuscular volume (MCV), mean corpuscular haemoglobin concentration (MCHC), neurophils,
eosinophils and gamma-glutamyl transferase (GGT) compared favourably with the control. There was no significant difference in haemoglobin (Hb) and alanine aminotransferase (ALT) at both 50 and 100 mg/kg, but at 200 mg/kg, there was slight reduction in both parameters. The extract caused progressive significant increase in platelets concentration. The lymphocytes level was significantly higher at 50 and 100 mg/kg. The extract at all doses did not significantly alter the levels of Na, K, Cl, inorganic phosphorus, urea, creatinine, total bilirubin, globulin, total protein, total cholesterol, high density
lipoprotein-cholesterol (HDCL-C) and low density lipoprotein-cholesterol (LDL-C). The liver- and kidneybody weight ratios were not altered by all the doses except an increase in kidney-body weight ratio by the 200 mg/kg body weight of the extract. The concentration of triacylglycerol was increased by the 50 and 100 mg/kg body weight, while that of alkaline phophatase did not follow any regular pattern. There was reduction in the concentration of aspartate aminotransferase (ALT) from 50 to 200 mg/kg body weight. The alterations on some hematological and liver function parameters were an indication that the
extract possessed selective toxicity.
while it decreased the large unstained cells (LUC). The red blood cell (RBC), packed cell volume (PCV), mean corpuscular volume (MCV), mean corpuscular haemoglobin concentration (MCHC), neurophils,
eosinophils and gamma-glutamyl transferase (GGT) compared favourably with the control. There was no significant difference in haemoglobin (Hb) and alanine aminotransferase (ALT) at both 50 and 100 mg/kg, but at 200 mg/kg, there was slight reduction in both parameters. The extract caused progressive significant increase in platelets concentration. The lymphocytes level was significantly higher at 50 and 100 mg/kg. The extract at all doses did not significantly alter the levels of Na, K, Cl, inorganic phosphorus, urea, creatinine, total bilirubin, globulin, total protein, total cholesterol, high density
lipoprotein-cholesterol (HDCL-C) and low density lipoprotein-cholesterol (LDL-C). The liver- and kidneybody weight ratios were not altered by all the doses except an increase in kidney-body weight ratio by the 200 mg/kg body weight of the extract. The concentration of triacylglycerol was increased by the 50 and 100 mg/kg body weight, while that of alkaline phophatase did not follow any regular pattern. There was reduction in the concentration of aspartate aminotransferase (ALT) from 50 to 200 mg/kg body weight. The alterations on some hematological and liver function parameters were an indication that the
extract possessed selective toxicity.
