Indian Journal of Clinical Biochemistry

, Volume 33, Issue 3, pp 314–321 | Cite as

Curative role of pantothenic acid in brain damage of gamma irradiated rats

  • Shedid SMEmail author
  • Saada HN
  • Eltahawy NA
  • Hammad AS
Original Article


Radiation induced brain damage is associated with impairment of mitochondrial functions, variations in the level of neurotransmitters, and oxidative stress. Mitochondrial function is closely linked to the level of neurotransmitters since the precursors are supplied by the Kreb’s cycle intermediates. The objective of this study was to evaluate the influence of pantothenic acid, an essential component in the synthesis of Coenzyme A (CoA), on the activity of the Krebs cycle enzymes, isocitrate dehydrogenase (IDH), α-ketoglutarate dehydrogenase (α-KGDH), and succinate dehydrogenase (SDH); the level of aspartic, glutamic and GABA; the activity of transaminases, and oxidative stress, in the cerebrum of γ-irradiated rats. Pantothenic acid (26 mg/Kg) was orally administered to the rats, 2 h after irradiation and during the following 5 days. Animals were sacrificed the 7th day post-irradiation. The exposure of male albino rats to γ-rays (5 Gy) has triggered oxidative stress notified by a significant elevation in the level of malondialdehyde (MDA), an end product of lipid peroxidation, associated to a significant decrease in the content of phospholipids, and the antioxidant compound glutathione (GSH). The activity of IDH, α-KGDH, and SDH, has significantly decreased, while the level of aspartic, glutamic and GABA has significantly increased. In parallel to these changes, the activity of alanine and aspartate transaminase has significantly increased, compared to their values in the control rats. Pantothenic acid treatment, has significantly attenuated oxidative stress; enhanced the activity of IDH, α-KGDH, and SDH; minimized the increase in the level of amino acids and the activity of transaminases, compared to their values in the cerebrum of irradiated rats. In conclusion, pantothenic acid could improve the level of neurotransmitters amino acids, which depends on the enzymatic activities of Krebs cycle and linked to oxidative stress.


Pantothenic acid Gamma radiation Brain Krebs cycle enzymes Transaminases Neurotransmitters 


Compliance with ethical standards

Conflict of interest

The authors report no conflict of interest.

Ethical approval

All the experimental procedures were carried out according to the principles and guidelines of the Ethics Committee of the National Research Centre conformed to “Guide for the care and use of Laboratory Animals” for the use and welfare of experimental animals, published by the US National Institutes of Health (NIH publication No. 85–23, 1996).


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Copyright information

© Association of Clinical Biochemists of India 2017

Authors and Affiliations

  1. 1.Department of Radiation Biology, National Center for Radiation Research and Technology (NCRRT)Atomic Energy AuthorityNasr CityEgypt

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