期刊
BMC RESEARCH NOTES
卷 14, 期 1, 页码 -出版社
SPRINGERNATURE
DOI: 10.1186/s13104-021-05595-8
关键词
Khat; Catha edulis; Submandibular salivary gland; Ultrastructural changes; TEM
The study examined the effect of khat extract on the ultrastructure of submandibular salivary gland cells in rats, revealing that oral administration of khat extract produced degenerative changes in the secretory and ductal cells. These changes included irregular boundaries of nuclei, dilated rough endoplasmic reticulum, cytoplasmic vacuoles, as well as swollen and degenerated mitochondria.
Objective Khat (Catha edulis Forssk) plant has been widely chewed for its psychostimulatory effects in the African and Arabian Peninsula, particularly in Yemen. Considering the khat leaves are gradually chewed without swallowing, while its active constituents are extracted into saliva, studying the effect of khat on salivary glands is necessary. This work is an extension of the previously published work that studied the effect of khat extract on the rats' submandibular salivary glands in terms of histological and immunohistochemical evaluations. The current research note aimed to better understand this effect on the ultrastructure of submandibular salivary gland cells by using transmission electron microscope. Results Oral administration of khat extract produced degenerative changes in the secretory and ductal cells of rats' submandibular salivary glands. These changes involved irregular boundaries of variable sized-nuclei, dilated RER, cytoplasmic vacuoles as well as swollen and degenerated mitochondria.
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