Journal
BIOMEDICINES
Volume 9, Issue 3, Pages -Publisher
MDPI
DOI: 10.3390/biomedicines9030285
Keywords
pneumococcal meningitis; bacterial meningitis; treatment of bacterial meningitis; cerebroprotection
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The study evaluated the cerebroprotective effects of a new pharmacological compound, EMHDPA, on bacterial purulent meningitis in rats. Administration of EMHDPA resulted in higher survival rates, improved clinical assessment of rat health status and locomotor activity, and decreased oxidative stress indicators compared to the control group, suggesting effectiveness in treating experimental PM.
Purulent meningitis (PM) is a severe disease, characterized by high mortality and a formation of a residual neurological deficit. Loss of treatment of PM leads to the lethal outcome in 100% of cases. In addition, death and the development of residual neurological complications are possible despite adequate therapy. The aim of the study was to evaluate the cerebroprotective effects of a new pharmacological compound 2-ethyl-6-methyl-3-hydroxypyridine-2,6-dichlorophenyl(amino)phenylethanoic acid (EMHDPA) on the bacterial purulent meningitis in a model of experimental pneumococcal meningitis. Meningitis was simulated by intrathecal injection of the suspension containing Streptococcus pneumoniae at the concentration of 5 x 10(9) CFU/mL. The cerebroprotective effect was evaluated by survival rates, the severity of neurological deficit, investigatory behaviors, and results of short-term and long-term memory tests. The group administered with EMHDPA showed high survival rates, 80%. Animals treated with the studied compound showed a higher clinical assessment of the rat health status and specific force, and a lesser intensity of neurological deficit compared to the control group (p < 0.05). Locomotor activity of the animals treated with EMHDPA was significantly higher compared to the control group (p < 0.05). There is a decrease in the activity of all estimated indicators of oxidative stress in the group administered with 2-ethyl-6-methyl-3-hydroxypyridine-2,6-dichlorophenyl(amino)phenylethanoic acid relative to the control group: a decrease in the activity of catalase-17%, superoxide dismutase-34%, malondialdehyde and acetylhydroperoxides-50%, and nitric oxide-85% (p < 0.05). Analysis of the data obtained during the experiment leads to the conclusion about the effectiveness of 2-ethyl-6-methyl-3-hydroxypyridine-2,6-dichlorophenyl(amino)phenylethanoic acid in the treatment of the experimental PM.
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