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Haematological and biochemical studies on Justicia carnea leaves extract in phenylhydrazine induced-anemia in albino rats.
BACKGROUND: Justicia carnea is a medicinal plant used widely in Nigeria which is reported to have diverse functions, including blood-boosting potential. Aim. The effect of the ethanol extract of Justicea carnea (JC) leaves in phenylhydrazine induced-anemia albino rats on haematological and lipid profile parameters was investigated.
METHODS: The experimental animals were randomly grouped into five groups of six rats each – group 1 (non-anemic control), group 2 (anemic control), group 3 (500 mg/kg of JC extract), group 4 (1000 mg/kg of JC extract) and group 5 (DMSO control). Phenylhydrazine was administered once at a dose of 80 mg/kg b.w. to induce hemolytic anemia. After 28 days of extract administration, they were humanely sacrificed and the serum collected was used for biochemical analysis.
RESULTS: In the acute toxicity study, the LD50 was found to be above 5000 mg/kg body weight. Packed Cell Volume (PCV) values, Red Blood cell (RBC) and haemoglobin (Hb) concentrations decreased (p < 0.05) sig- nificantly after 48 hours of phenylhydrazine induction, but after 28 days of administering extracts of Justicia carnea, PCV values, RBC and Hb increased (p < 0.05) significantly. There were significant (p < 0.05) de- creases in cholesterol, triacylglycerol, and LDL cholesterol concentrations in the extract-administered groups (groups 3&4) relative to the anemic control. There was a significant (p < 0.05) increase in HDL-cholesterol concentrations in the extract groups (3&4) relative to the non-anemic control.
CONCLUSIONS: Extracts of Justicia carnea not only reversed anemic conditions in the phenylhydrazine-induced rats, it also improved the lipid profile, and this may be attributed to its rich phytochemical, nutrient and vita- min composition. Therefore, the findings of the study suggest that J. carnea leaves could be used to manage lipid abnormalities associated with anemia.
METHODS: The experimental animals were randomly grouped into five groups of six rats each – group 1 (non-anemic control), group 2 (anemic control), group 3 (500 mg/kg of JC extract), group 4 (1000 mg/kg of JC extract) and group 5 (DMSO control). Phenylhydrazine was administered once at a dose of 80 mg/kg b.w. to induce hemolytic anemia. After 28 days of extract administration, they were humanely sacrificed and the serum collected was used for biochemical analysis.
RESULTS: In the acute toxicity study, the LD50 was found to be above 5000 mg/kg body weight. Packed Cell Volume (PCV) values, Red Blood cell (RBC) and haemoglobin (Hb) concentrations decreased (p < 0.05) sig- nificantly after 48 hours of phenylhydrazine induction, but after 28 days of administering extracts of Justicia carnea, PCV values, RBC and Hb increased (p < 0.05) significantly. There were significant (p < 0.05) de- creases in cholesterol, triacylglycerol, and LDL cholesterol concentrations in the extract-administered groups (groups 3&4) relative to the anemic control. There was a significant (p < 0.05) increase in HDL-cholesterol concentrations in the extract groups (3&4) relative to the non-anemic control.
CONCLUSIONS: Extracts of Justicia carnea not only reversed anemic conditions in the phenylhydrazine-induced rats, it also improved the lipid profile, and this may be attributed to its rich phytochemical, nutrient and vita- min composition. Therefore, the findings of the study suggest that J. carnea leaves could be used to manage lipid abnormalities associated with anemia.
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