AU - Abdel-Aziz, N. AU - Elkady, A.A. AU - Elgazzar, E.M. TI - Choline glycerophosphate and silymarin modulate brain and intestinal injuries in rats exposed to gamma-radiation PT - JOURNAL ARTICLE TA - Int-J-Radiat-Res JN - Int-J-Radiat-Res VO - 20 VI - 4 IP - 4 4099 - http://ijrr.com/article-1-4477-en.html 4100 - http://ijrr.com/article-1-4477-en.pdf SO - Int-J-Radiat-Res 4 ABĀ  - Background: the aim of this study was to investigate the role of choline glycerophosphate (GPC) either alone or combined with silymarin in modulating whole body gamma irradiation-induced brain and intestinal injuries in rats. Materials and Methods: Rats were irradiated with 7Gy then subjected to GPC and/ or silymarin for two weeks. At the end of the experiment, the animals were sacrificed then, brain and intestine samples were removed for biochemical, molecular and histopathological examinations. Results: it has been detected that GPC alone or combined with silymarin ameliorated the adverse effects of radiation as revealed by the inhibition of oxidative stress, apoptotic and inflammatory markers [Malondialdehyde (MDA), Caspase-3 Tumors necrosis factor-α (TNF-α), interleukin-1β (IL-1β) and nuclear factor kappa-B (NF-kB)]. However, Total antioxidant capacity (TAC), anti-inflammatory marker, Interleukin-10 (IL-10) and inhibitor of Nuclear factor kappa-Ba (IkBa) mRNA were increased. This was also accompanied by a significant increase in the Acetylcholine (ACh) level, Choline Acetyltransferase (ChAT) activity and Alpha-7 nicotinic receptor (α7nAChR), mRNA-expression and a significant decrease in the activity of Acetylcholine esterase (AChE) as compared with the corresponding values of the irradiated group. Moreover, a reduction in the tissue lesions was observed in brain and intestinal tissues. Conclusion: Choline glycerolphosphate and silymarin exhibited modulating effect against detrimental effects of gamma-radiation via cholinergic anti-inflammatory pathway. CP - IRAN IN - Health Radiation Research Department, National Centre for Radiation Research and Technology (NCRRT), Egyptian Atomic Energy Authority (EAEA), P.O. Box 29, Nasr City, Cairo, Egypt LG - eng PB - Int-J-Radiat-Res PG - 829 PT - Original Research YR - 2022