Effect of 18-β Glycyrrhetinic Acid on the Endoplasmic Reticulum of Nasal Epithelial Cells in Allergic Rhinitis Model Rats / 中国中西医结合杂志
Chinese Journal of Integrated Traditional and Western Medicine
;
(12): 578-582, 2015.
Artículo
en Chino
| WPRIM
| ID: wpr-297381
ABSTRACT
<p><b>OBJECTIVE</b>To explore the effect of 18-β glycyrrhetinic acid (GA) on the endoplasmic reticulum of nasal epithelial cells in allergic rhinitis (AR) model rats.</p><p><b>METHODS</b>Totally 96 Wistar rats were randomly divided into the blank group, the AR model group, the loratadine group, the GA group, 24 in each group. AR models were established by peritoneally injecting ovalbumin (OVA). Morphological scoring was performed. GA at 21. 6 mg/kg was intragastrically administered to rats in the GA group. Nasal mucosal tissues were taken for electron microscopic examinations at the second, fourth, sixth, and tenth week after drug intervention.</p><p><b>RESULTS</b>The overlapping score was 2.10 ± 0.45 in the blank group, 5.10 ± 0.56 in the loratadine group, 5.10 ± 0.56 in the AR model group, 5.20 ± 0.78 in the GA group, showing statistical difference when compared with the blank group (P < 0.01). Results under transmission electron microscope showed that the number of the endoplasmic reticulum increased in the AR model group, with obvious cystic dilatation, a lot of vacuole formation, and degranulation. A large number of free ribosomes could be seen in cytoplasm. With persistent allergen exposure, changes mentioned above was progressively aggravated in the endoplasmic reticulum of nasal mucosal epithelium in the AR model group. But the dilation of endoplasmic reticulum, vacuole formation, and degranulation were relieved in the GA group, and got close to those of the blank group.</p><p><b>CONCLUSION</b>18-β GA could improve the expansion, vacuolization, and degranulation of the endoplasmic reticulum of nasal epithelial cells in AR model rats.</p>
Texto completo:
Disponible
Índice:
WPRIM (Pacífico Occidental)
Asunto principal:
Farmacología
/
Ratas Wistar
/
Usos Terapéuticos
/
Quimioterapia
/
Retículo Endoplásmico
/
Células Epiteliales
/
Rinitis Alérgica
/
Ácido Glicirretínico
/
Antiinflamatorios
/
Mucosa Nasal
Tipo de estudio:
Estudio pronóstico
Límite:
Animales
Idioma:
Chino
Revista:
Chinese Journal of Integrated Traditional and Western Medicine
Año:
2015
Tipo del documento:
Artículo
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