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Arch. venez. farmacol. ter ; 28(2): 66-71, jul. 2009. ilus, tab
Article in Spanish | LILACS | ID: lil-630362

ABSTRACT

El alcohol y el estrés son problemas de salud pública que afectan el Receptor Colinérgico Muscarínico (RCM). En el presente trabajo se estudia el efecto de ambos fenómenos sobre la funcionalidad y densidad del RCM. Métodos: 43 ratas Sprague Dawley se dividieron en 4 grupos: Control (n=12), Estrés (n=11), Alcohol (n=10) y Alcohol-Estrés (n=10). A los grupos alcohol se le administró diariamente etanol al 10 % ad libitum y los grupos Estrés se sometieron a nado forzado a 5°C por 5 min tres veces/semana. Resultados: las ratas tratadas con alcohol presentaron adicción e hipermotilidad, siendo el efecto mayor en el grupo alcohol-estrés. Escopolamina incremento la motilidad en todos los grupos. No hubo diferencias significativas entre los grupos en el desempeño en el Rotarod. La densidad de los RCM estuvo disminuida significativamente en Hipocampo en el grupo alcohol. Conclusión: el alcohol induce trastornos del RCM relacionados a hipermotilidad


Alcohol consumption and stress are health problems, which affects the Cholinergic Muscarinic Receptor (CMR) system. Here we studied the effect of both phenomena on CMR functionality and densities. Methods: 43 Sprague Dawley rats were divided in 4 groups: Control (n=11), Stress (n=10), Alcohol (n=10) and Alcohol-Stress (n=9). Alcohol groups received 10% ethanol ad libitum in substitution of water every day, stress groups were submitted 3 days at week to 5 min force swimming at 5°C. Results: rats that had alcohol displayed addiction and hypermotility, the effect was higher at alcohol-stress group. Scopolamine significantly increased motility in all groups. No differences were observed at Rotarod performance. CMR density was decreased in hippocampus of rats belonging to alcohol group. Conclusion: alcohol induces motor disturbances related to CMR system


Subject(s)
Rats , Stress, Physiological , Ethanol/administration & dosage , Receptors, Cholinergic/analysis , Anxiety , Alcoholic Beverages/adverse effects , Pharmacology
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