The curative effect of Bee Venom and Propolis on oxidative stress induced by γ-irradiation on blood and tissues of rats

Authors

1 Zoology Department, Faculty of Science;

2 Pathology and Clinical Pathology Department, Faculty of Vet. Med., South Valley University, Qena, 83523

Abstract

The biological effects of ionizing radiation
result in the formation of free radicals which are the main cause of cellular
damage. This study was aimed to detect the curative effect of some antioxidants
drugs (Bee venom and Propolis) on the hematological, biochemical and histological
parameters after exposed to γ-irradiation on the rats. Five groups of adult
male albino rats were established (n= 11). The first group (Gp. 1) was served
as normal group. Gp. 2 was exposed the whole body of rats to a single shot dose
of gamma radiation (5Gy) and served as control group. Gp. 3 was injected
intraperitoneal (i.p.) daily with Bee venom
at dose (5ml/kgbody weight). Gp. 4 was given orally Propolis daily at dose 300 mg/kg body weight (B.wt). Gp. 5 was administered of (5ml/kgbody weight) of Bee
venom injected i.p. plus
orally 300 mg/kg (B.wt) of Propolis, daily. All groups were treated after 8 hours exposure,
for 40 day. Whole blood, serum and biopsy from liver and kidneys were collected
for hematological, biochemical and histopathological examinations,
respectivetly. In the irradiated group (gp. 2), hematotoxicity was determined
by a significant decrease in red blood cells (RBCs), white blood cells (WBCs),
blood Platelets (PLTs), haemoglobin (Hb) and
PCV value, as well as there are an elevation in serum
ALT, AST, ALP, LDH, creatinine and urea, associated with reduction in albumin
and uric acid. Hepatotoxicity was recorded in a highly significant increase
malondialdehyde (MDA) with marked reduction in glutathione (GSH) levels,
superoxide dismutase (SOD) and catalase (CAT) activities. In addition to,
degenerative and necrotic changes showed in liver and kidneys. It could be
concluded that Bee venom and Propolis, clarified a modulatory role against the
cellular damage produced by free radicals induced by ionizing radiation.

Keywords