Bioelectrical Activity of the Amygdala of Rats under Conditions of Chronic Alcoholism and Imbalance of Nitric Oxide

Article Preview

Abstract:

Evaluation of biopotentials in the region of the amygdala of rats in the combined influence of alcohol and drugs, causing an imbalance of nitric oxide is described in this paper. Chronic alcoholism leads to structural morphological changes in the liver. A study of the amplitude of electrical activity showed that the electrical potential in the amygdala after 8 weeks chronic alcoholism was lower compared with normal rats. The frequency spectrum analysis showed decreased in the 2 times or more absolute spectral powers of all components. The relative spectral powers of its components: δ: θ: α: β was as a 2: 2: 2: 4. The use of sodium nitroprusside (donator of NO) together with the chronic consumption of ethanol reduces the effect of ethanol on low and high-frequence portion the performance of the bioelectrical activities spectrum in the amygdala. The use of non-selective blocker of NO-synthase – nitroarginine aggravated by the braking action of alcohol. The important role of nitric oxide in the development of adaptive-compensatory reactions of the damaged body is described. Our results may be useful to assess the contribution of NO in operation amygdala, conditions of chronic pathologies, and treatment of neuropsychiatric conditions, including diseases caused by alcohol abuse.

Info:

* - Corresponding Author

[1] F. Campagna, S. Montagnese, S. Schiff, M. Ruzzoli, Confounders in the detection of minimal hepatic encephalopathy: a neuropsychological and quantified EEG study, Liver Int., 35(5) (2015):1524-1532.

DOI: 10.1111/liv.12635

Google Scholar

[2] A.D. Dager, D.R. McKay, J.W Jr Kent, J.E. Curran, Shared genetic factors influence amygdala volumes and risk for alcoholism, Neuropsychopharmacology. 40(2) (2015) 412-420.

DOI: 10.1038/npp.2014.187

Google Scholar

[3] R. Folescu C.L. Zamfir, A.M. Sişu, A.G. Motoc A.C. Ilie, M. Moise, Histopathological and imaging modifications in chronic ethanolic encephalopathy, Rom J Morphol Embryol. 55(3) (2014) 797-801.

Google Scholar

[4] J.L. Kissler,S. Sirohi, D.J. Reis, H.T. Jansen, R.M. Quock, D.G. Smith, B.M. Walker, The one-two punch of alcoholism: role of central amygdala dynorphins/kappa-opioid receptors, Biol Psychiatry. 75(10) (2014) 774-782.

DOI: 10.1016/j.biopsych.2013.03.014

Google Scholar

[5] O.A Lyubashina, A.A Dorofeeva, E.B. Pluzhnichenko, S.S. Panteleev, Location of neurons in the central nucleus of the amygdaloid body projecting to the paraventricular nucleus of the hypothalamus. Neurosci Behav Physiol. 40(1) (2010) 103-105.

DOI: 10.1007/s11055-009-9218-3

Google Scholar

[6] O.A. Lyubashina, A.D. Nozdrachev, NO-dependent mechanisms of amygdalocortical influence, Dokl Biol Sci. 421 (2008) 225-228.

DOI: 10.1134/s0012496608040017

Google Scholar

[7] Y.S. Nikolova, A.R. Knodt, S.R. Radtke, A.R. Hariri, Divergent responses of the amygdala and ventral striatum predict stress-related problem drinking in young adults: possible differential markers of affective and impulsive pathways of risk for alcohol use disorder, Mol Psychiatry. (2015) 1-9

DOI: 10.1038/mp.2015.85

Google Scholar

[8] G. Paxions, C. Watsons, The rat brain in stereotaxis coordinates, San Diego, CA Academic, 1986.

Google Scholar

[9] R.M. Sears, H.C. Schiff, J.E. LeDoux, Molecular mechanisms of threat learning in the lateral nucleus of the amygdala, Prog Mol Biol Transl Sci. 122 (2014) 263-304.

DOI: 10.1016/b978-0-12-420170-5.00010-6

Google Scholar

[10] O.V. Severynovska., O.Ye. Pachomov, V.K. Rybalchenko, Etologija (osnovy povedinky tvaryn), Dnipropetr. Nat. Univ. Press, Dnipropetrovsk, 2010.

Google Scholar

[11] F.Z. Shaw, R.F. Chen, H.W. Tsao, C.T. Yen, A multichannel system for recording and analysis of cortical field potentials in freely moving rats, J Neurosci Methods. 88(1) (1999) 33-43.

DOI: 10.1016/s0165-0270(99)00010-2

Google Scholar

[12] H. Schweighöfer,C. Rummel, K Mayer, B. Rosengarten, Brain function in iNOS knock out or iNOS inhibited (l-NIL) mice under endotoxic shock, Intensive Care Med Exp. 2(1) (2014) 1-9.

DOI: 10.1186/s40635-014-0024-z

Google Scholar

[13] J. Wang, J. Wang, X. Li, D. Li, X.L. Li, J.S. Han, Y. Wan, Modulation of brain electroencephalography oscillations by electroacupuncture in a rat model of postincisionalpain, Evid Based Complement Alternat Med. (2013) 1-11.

DOI: 10.1155/2013/160357

Google Scholar

[14] N.M. Zahr, Structural and microstructral imaging of the brain in alcohol use disorders. Handb Clin Neurol. 125 (2014) 275-290.

DOI: 10.1016/b978-0-444-62619-6.00017-3

Google Scholar