Pharmacognosy 2019
March 11-12, 2019
London, UK
American Journal of Ethnomedicine
ISSN: 2348-9502
Page 55
Pharmacognosy and
Medicinal Plants
7
th
Edition of International Conference on
Am J Ethnomed 2019, Volume 6
DOI: 10.21767/2348-9502-C1-009
Mechanisms behind hypoglycemic actions of butanol
fraction of
Azadirachta indica
in a type 2 diabetes rat model
Olakunle Sanni and Md Shahidul Islam
University of Kwazulu-Natal, South Africa
T
he cost and side effects of oral hypoglycemic agents
for the treatment andmanagement of type 2 diabetes
(T2D) has led to increase the use of natural medicines,
particularly from medicinal plants. Hence the validation
of the folkloric and use of these medicinal plants. In the
present study, the mechanisms behind the antidiabetic
effects of the butanol fraction of
Azardirachta indica
(A. indica)
(BFAI) were evaluated. T2D was induced by
feeding 10% fructose solution ad libitum for two weeks
followed by an intraperitoneal injection of streptozotocin
(40 mg/kg body weight) and the animals were treated
with a low dose (150 mg/kg) and a high dose (300
mg/kg) of BFAI for 4 weeks as a single oral dose daily.
Body weight and blood glucose were determined every
week. Oral glucose tolerance test was performed in the
last week of treatment. Insulin homeostasis and liver
glycogen concentration were determined after 4 weeks
of oral administration. Both doses of the fractions
showed significant improvement of body weight, reduced
blood glucose, stimulated insulin secretions, improved
pancreatic β- cell function (HOMA-β), decreased insulin
resistance (HOMA-IR) and increased liver glycogen
concentration compared to untreated diabetic rats,
when high dose had a better activity. GC-MS analysis of
the fraction revealed the presence of polyphenols. The
results of this study suggest that, the polyphenols present
in the fraction may be responsible for the antidiabetic
effects which have been achieved via decreasing insulin
resistance, modulating β-cell function, as well as by
inhibiting of α-amylase and α-glucosidase activity.