Citas bibligráficas
Medina, L., Villacorta, E. (2024). Efecto del extracto hidroalcohólico liofilizado de los cálices de Hibiscus sabdariffa en íleon de Rattus norvegicus Holtzman [Universidad Nacional de Trujillo]. https://hdl.handle.net/20.500.14414/22054
Medina, L., Villacorta, E. Efecto del extracto hidroalcohólico liofilizado de los cálices de Hibiscus sabdariffa en íleon de Rattus norvegicus Holtzman []. PE: Universidad Nacional de Trujillo; 2024. https://hdl.handle.net/20.500.14414/22054
@misc{renati/881472,
title = "Efecto del extracto hidroalcohólico liofilizado de los cálices de Hibiscus sabdariffa en íleon de Rattus norvegicus Holtzman",
author = "Villacorta Cabanillas, Elizabeth Marissa",
publisher = "Universidad Nacional de Trujillo",
year = "2024"
}
ABSTRACT The objective of this work was to evaluate the effect of the lyophilized hydroalcoholic extract of the calyxes of Hibiscus sabdariffa on the ileum of Rattus norvegicus var. Holtzman. The calyxes of Hibiscus sabdariffa were obtained from a naturopathic establishment in the district of Trujillo, from which the freeze-dried hydroalcoholic extract was prepared. 10 adult male rats were selected, whose weight was in the range of 150-180g. Before carrying out the experiment, they were fasted for 24 hours, subsequently, they were sacrificed by physical euthanasia, then the ileal segments were extracted and fixed in isolated organ baths for stabilization. The pre-contractor was worked with three contracturants, 10-5 M acetylcholine, 10 mM barium chloride and 60 mM potassium chloride. Subsequently, in each case, the lyophilized hydroalcoholic extract of Hibiscus sabdariffa was administered at concentrations of 1 to 1000 µg/ mL. The pre-incubation was carried out by administering concentrations of the lyophilized hydroalcoholic extract of Hibiscus sabdariffa of 500 and 750 µg/mL. In both cases, acetylcholine was subsequently and separately administered from 10-10M to 10-4M, barium chloride from 10-8M to 10-3M and potassium chloride 10-4M to 10-1,5M. The relaxation produced above the basal tone, at the concentration of 100 ug/mL was statistically significant (p<0.01) and from 250 µg/mL it was even more significant (p<0.001) as with the pre-contracted with acetylcholine. In the pre-contracted with barium chloride concentration of 250 µg/mL there was a statistically significant difference (p<0.01) and from 500 µg/mL this difference was greater (p<0.001). In the pre-contracted with potassium chloride from 250 ug/mL there was a statistically significant difference (p<0.001). Regarding pre-incubation with 500 and 750 µg/mL, there was a relaxation compared to acetylcholine (p<0.05). In the pre-incubated with barium chloride no significant difference was found, however with potassium chloride there was an antispasmodic effect (p<0.05). In conclusion, the antispasmodic and spasmolytic effect of the extract was possibly generated by its activity on ATP-sensitive potassium channels, voltage-gated L-type calcium channels, and M3 muscarinic receptors.
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