| ORIGINAL ARTICLE |
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| Year : 2020 | Volume
: 22
| Issue : 106 | Page : 63--69 |
Adrenergic alpha-2 receptor antagonists cease augmented oxidation of plasma proteins and anxiety of rats caused by chronic noise exposure
Ashkhen Lyova Manukyan1, Artem Sergey Grigoryan2, Lilit Serob Hunanyan1, Hayk Ashot Harutyunyan3, Mariam Varos Manukyan3, Magdalina Mher Melkonyan1
1 Department of Medical Chemistry Yerevan State Medical University after M. Heratsi, Yerevan, Armenia
2 Department of Pathophysiology Yerevan State Medical University after M. Heratsi, Yerevan, Armenia
3 Science Research Center (SRC), Yerevan State Medical University after M. Heratsi, Yerevan, Armenia
Correspondence Address:
Ashkhen Lyova Manukyan
Assistant Professor, Department of Medical Chemistry Yerevan State Medical University after M. Heratsi, Galshoyan Str., 36/38, 0079, Yerevan
Armenia
Mariam Varos Manukyan
Assistant Professor, Galshoyan Str., 36/38, 0079, Yerevan
Armenia
 Source of Support: None, Conflict of Interest: None  | Check |
DOI: 10.4103/nah.NAH_31_19
Background: Noise is one of the environmental factors, which is considered as a powerful stressor for the organism. Generally, the acoustic stress affects the behavior and physiological state of humans and animals. Aims: The goal of this study is to investigate the relationship between chronic noise exposure and the effects of adrenergic alpha-2 receptor antagonists, beditin and mesedin, on the anxiety and oxidation of plasma proteins and fibrinogen in rats. Methods: The experiments were carried out on non-linear albino male rats, divided into four groups (six animals in each): 1. Healthy controls 2. Exposed to noise of a level 91 dB(A), eight hours daily, during 7, 30 and 60 days; 3. Injected with 2 mg/kg of beditin (2-(2-amino-4-thiazolyl)-1,4-benzodioxane hydrochloride)); 4. Injected with 10 mg/kg mesedin (2-(2-methyl-amino-thiozolyl)-1,4-benzodioxane hydrochloride). For evaluating the cognitive impairment, the Any-maze test was applied. The level of carbonylation of proteins was assessed by reaction with 2,4-dinitrophenylhydrazine, spectrophotometrically. Results: Chronic noise decreased locomotor activity and increased anxiety and oxidation of plasma protein and fibrinogen. Intensity of these changes were dependent on the duration of noise exposure. Conclusion: The Alpha 2 adrenoblockers alleviate oxidative modification of plasma proteins and reduce the cognitive impairment caused by chronic exposure to noise.
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