Pharmacological investigations of Graptophyllum pictum as hepatoprotective potential in albino rats

Abstract

Objective: The present study was designed to evaluate preliminary phytochemical and pharmacological evaluations
of the whole plant of Graptophyllum pictum aqueous extract for hepatoprotective and in-vitro antioxidant activities.
Method: Wistar rats were divided into five groups having six animals in each. Group I served as normal control and
orally administered normal saline; Group II (disease control) rats were orally administered with Paracetamol (2
gm/kg b.w.); Group III (standard control) rats were administered with Silymarin (100 mg/kg p.o.); Group IV and V
rats were orally administered with aqueous extract of Graptophyllum pictum at low dose (200 mg/kg b.w.) and high
dose (400mg/kg b.w.) respectively once a day for two weeks. Results: The qualitative chemical tests revealed the
presence of carbohydrates, tannins, phenolic compounds, alkaloids, glycosides, flavonoids, and steroids along with
few inorganic constituents i.e. iron, sulphate, phosphate and chloride. The obtained results for such an activity of G.
pictum (400 mg/kg) were SGPT (83.32±0.93 IU/L), SGOT (163.91±0.91 IU/L), direct bilirubin (0.73±0.008 mg/dl),
total bilirubin (0.82±0.006 mg/dl) and triglycerides (177.16±0.63 mg/dl) shows significant reductions as compared
to the disease control. The histology of liver tissue reported that the high dose (400 mg/kg) showing the normal and
well defined cytoplasm, nucleus and central hepatic vein. The antioxidant activity like in-vitro DPPH assay,
favonoid content, total phenolic content, ABTS radical scavenging activity, hydrogen peroxide scavenging method
confirms the significant hepatoprotective potency. Conclusion: Thus, the investigations revealed that whole plant of
Graptophyllum pictum possessed potent hepatoprotective and antioxidant activities.