Evidence-Based Complementary and Alternative Medicine 3
Group V: Glibenclamide-treated diabetic rats (50mg/
kg/day).
2.6. Acute Toxicity Test. R. nasutus (50–250mg/kg body
weight)was orally administered to rats for acute toxicity studies.
Each group was observed individually for signs of toxicity
and behavioral changes such as hyperactivity, grooming, convulsions,
sedation, or hypothermia. These observations began
1 h after dosing and were continued at least once daily for 14
days.The mortality rate was also calculated.
2.7. Biochemical Measurements. At the end of the study (30
days), after an overnight fasting, the animals were sacrificed
by cervical dislocation following anesthesia using isoflurane.
The liver tissue was excised and washed with ice-cold saline
andwas immediately immersed in liquid nitrogen and stored
at −80∘C for further biochemical analysis.Then, the measurements
of liver enzyme activity and biochemical assays were
performed.
AST andALT activities were assayed using themethod of
Reitman and Frankel [28].Thetotal carbohydrate contentwas
estimated based on the method established by Carroll et al.
[29]. Glycogen content was determined as described by
Saifter et al. [30]. The protein content was estimated by the
method of Lowry et al. [31] with slight modifications. All
enzymatic assays in this study were performed using crude
liver homogenate.
2.8. Statistical Analysis. The results were expressed as the
mean ± SD (