Preview

Journal Biomed

Advanced search

Some Aspects of the Effect of Combined Irradiation by Gamma-Rays and Carbon Nuclei (12C) on the Serotonergic System in Rat Brain

https://doi.org/10.33647/2074-5982-16-3-68-72

Abstract

The atomic nuclei of cosmic rays possessing a high kinetic energy pose a significant threat to living organisms outside the Earth’s magnetic field. However, surprisingly, a series of ground-based studies using progressive models of combined irradiation revealed positive effects of such rays in relation to the functions of the central nervous system. The molecular mechanism of this phenomenon remains unknown. We have previously proposed a hypothesis that the serotonergic system may be involved in the realization of these effects. This research investigates the content of a number of biomolecules participating in serotonergic neurotransmission in selected morphological brain structures of rats under combined (γ-rays and 12C6+) irradiation. The revealed increase in 5-HT2a in the prefrontal cortex may be a key link in the mechanism responsible for enhancing cognitive functions under moderate doses of ionizing radiation.

About the Author

V. S. Kokhan
Scientific Center of Biomedical Technologies of the Federal Medical and Biological Agency of Russia
Russian Federation

Viktor S. Kokhan, Cand. Sci. (Biol.)

143442, Moscow region, Krasnogorsk district, Svetlye gory village, building 1



References

1. Cekanaviciute E., Rosi S., Costes S.V. Central Nervous System Responses to Simulated Galactic Cosmic Rays. International Journal of Molecular Sciences. 2018;19(11). DOI: 10.3390/ijms19113669.

2. Collingridge G.L., Volianskis A., Bannister N., France G., Hanna L., Mercier M., et al. The NMDA receptor as a target for cognitive enhancement. Neuropharmacology. 2013;64:13–26. DOI: 10.1016/j.neuropharm.2012.06.051.

3. Cucinotta F.A., Kim M.H., Chappell L.J., Huff J.L. How safe is safe enough? Radiation risk for a human mission to Mars. PloS One. 2013;8(10):e74988. DOI: 10.1371/journal.pone.0074988.

4. Garrett-Bakelman F.E., Darshi M., Green S.J., Gur R.C., Lin L., Macias B.R., et al. The NASA Twins Study: A multidimensional analysis of a year-long human spaceflight. Science. 2019;364(6436). DOI: 10.1126/science.aau8650.

5. Kokhan V.S., Anokhin P.K., Belov O.V., Gulyaev M.V. Cortical Glutamate/GABA Imbalance after Combined Radiation Exposure: Relevance to Human Deep-Space Missions. Neuroscience. 2019;416:295–308. DOI: 10.1016/j.neuroscience.2019.08.009.

6. Kokhan V.S., Lebedeva-Georgievskaya K.B., Kudrin V.S., Bazyan A.S., Maltsev A.V., Shtemberg A.S. An investigation of the single and combined effects of hypogravity and ionizing radiation on brain monoamine metabolism and rats’ behavior. Life Sciences in Space Research. 2019;20:12–19. DOI: 10.1016/j.lssr.2018.11.003.

7. Letzkus J.J., Wolff S.B., Luthi A. Disinhibition, a Circuit Mechanism for Associative Learning and Memory. Neuron. 2015;88(2):264–276. DOI: 10.1016/j.neuron.2015.09.024.

8. Puig M.V., Gulledge A.T. Serotonin and prefrontal cortex function: neurons, networks, and circuits. Molecular Neurobiology. 2011;44(3):449–464. DOI: 10.1007/s12035-011-8214-0.

9. Raber J., Marzulla T., Kronenberg A., Turker M.S. (16)Oxygen irradiation enhances cued fear memory in B6D2F1 mice. Life Sci. Space Res. (Amst). 2015;7:61–65. DOI: 10.1016/j.lssr.2015.10.004.

10. Sargin D., Jeoung H.S., Goodfellow N.M., Lambe E.K. Serotonin Regulation of the Prefrontal Cortex: Cognitive Relevance and the Impact of Developmental Perturbation. ACS Chem. Neurosci. 2019;10(7):30783093. DOI: 10.1021/acschemneuro.9b00073.

11. Temple M.D., Kosik K.S., Steward O. Spatial learning and memory is preserved in rats after early development in a microgravity environment. Neurobiology of Learning and Memory. 2002;78(2):199–216. DOI: 10.1006/nlme.2001.4049.

12. Whoolery C.W., Yun S., Reynolds R.P., Lucero M.J., Soler I., Tran F.H., et al. Multi-domain cognitive assessment of male mice shows space radiation is not harmful to high-level cognition and actually improves pattern separation. Scientific Reports. 2020;10(1):2737. DOI: 10.1038/s41598-020-59419-z.

13. Woodcock E.A., Anand C., Khatib D., Diwadkar V.A., Stanley J.A. Working Memory Modulates Glutamate Levels in the Dorsolateral Prefrontal Cortex during (1)H fMRS. Frontiers in Psychiatry / Frontiers Research Foundation. 2018;9:66. DOI: 10.3389/fpsyt.2018.00066.

14. Zhang G., Stackman R.W. Jr. The role of serotonin 5-HT2A receptors in memory and cognition. Frontiers in Pharmacology. 2015;6:225. DOI: 10.3389/fphar.2015.00225.


Review

For citations:


Kokhan V.S. Some Aspects of the Effect of Combined Irradiation by Gamma-Rays and Carbon Nuclei (12C) on the Serotonergic System in Rat Brain. Journal Biomed. 2020;16(3):68-72. (In Russ.) https://doi.org/10.33647/2074-5982-16-3-68-72

Views: 1498


Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 License.


ISSN 2074-5982 (Print)
ISSN 2713-0428 (Online)