Therapeutic Effects of an Ethanolic Olive Leaves Extract or Bone Marrow Mesenchymal Stem Cells against Liver Injury Induced by Gamma Radiation

Document Type : Original Article

Authors

1 Department of Zoology, Faculty of Science (for boys), AL-Azhar University

2 National Centre for Radiation Research and Technology, Atomic Energy Authority (AEA),

3 Department of Zoology, Faculty of Science (for girls), AL–Azhar University, Cairo, Egypt.

10.12816/0036652

Abstract

Background: Ionizing radiation absorption causes immediate biochemical, sub cellular and cellular damage, while its morphological expression and organ dysfunction are often considerably delayed. This  study was aimed  to  investigate  the  possible  therapeutic  effects  of    ethanolic  olive  leaves  extract  or    bone  marrow  derived-mesenchymal  stem  cells  (BM-MSCs)  transplanted  in  the  liver  of  rats  exposed  to  gamma  radiation.  For this purpose, hematological and  biochemical  parameters  were  determined 
Materials and methods: 50  adult  male  albino  rats  (Sprague  dawely  strain)  were  used  in  this  study.  They  were  divided  into  5  groups  (C  group:  Untreated  control  rats;  R  group:  rats  exposed  to  a  single  dose  of  gamma-radiation  (6  Gy),  OLE  group:  rats  treated  with  olive  leaves  extract  (15  mg  /kg  body  weight  /  day  for  30  days),  R+OLE  group:  animals  of  this  group    were  irradiated  with  6Gy  then  treated  with  OLE(15  mg  /kg  body  weight/  day)  after  3  hours    post  irradiation    for  30  days.  and  R+MSCs  group:  Mesenchymal  stem  cells-irradiated  animals  (MSCs  +R):  animals  of  this  group    were  irradiated  with  6Gy  then  injected  after  6hours  post  irradiation  with  (BM-MSCs)    3×106    cells/ml  suspension  through  caudal  vein  . All these groups were subjected to hematological and biochemical investigations.
Results: Hematological  and  liver  function  changes  were  shown  in  gamma  irradiated  rats,  these  changes  included  a  significant  depression  in  hematological  parameters  of  blood  such  as  (RBCs,  Hb,  Hct  and  WBCs)and  a  significant  increase  in  liver  parameters  (ALT,AST and ALP)  at  different  intervals  of  the  experiment  in  comparison  with the control  group.  These  changes  manifested  good  amelioration  in  the  exposed  groups  by  using  either  olive  leaves  extract  (OLE)  or  bone  marrow  mesenchymal  stem  cells  (BM-MSCs). Conclusion: Ethanolic  olive  leaves  extracts  and  mesenchymal  stem  cells have  ameliorated  hematological  and  biochemical  parameters  changes  in  liver  of  the  irradiated  group.  their  actions  may  be  due  to  their  anti-inflammatory  and  antioxidant  properties. 
 

Keywords