Effects of Extracts from the Seed of Litchi on the Expression of ER and PR in Rat Mammary Tissue and Apoptosis of Mammary Glandular Cell
- VernacularTitle:荔枝核提取物抑制乳腺增生模型大鼠乳腺组织ER和PR表达及促进乳腺细胞凋亡作用研究
- Author:
Ni LIN
- Publication Type:Journal Article
- Keywords:
Extracts of the seed of Litchi;
Rujieping;
Hyperplasia of mammary glands;
Estradiol receptor;
Progestogen receptor;
Apoptosis;
Rat
- From:
China Pharmacy
2001;0(11):-
- CountryChina
- Language:Chinese
-
Abstract:
OBJECTIVE: To study the effects of extracts of the seed of Litchi (ESL) on the expression of estradiol receptor (ER) and progestogen receptor (PR) in mammary tissue and apoptosis of mammary glandular cells in rats with hyperplasia of mammary glands (HMG). METHODS: The HMG model was induced by intramuscularly injecting with 0.5 mg?kg-1 estradiol benzoate for 25 days, subsequently intramuscularly injecting with 4 mg?kg-1 progesterone for 5 days. 60 healthy nonfertile SD rats were divided into normal group, model group, rujieping group and high-dose, medium-dose and low-dose ESL groups, treating with distilled water, distilled water, 3.3 g?kg-1 Rujieping and 44, 22, 11 g?kg-1 ESL via i.g. gtt once a day for 30 days, respectively. Immunohistochemical method was applied to observe the expression of ER and PR in rat mammary tissue and apoptosis of mammary glandular cells. Uterus index was also calculated. RESULTS: High-dose and medium-dose of ESL can inhibit the expression of ER and PR of mammary gland in HMG rats and induce apoptosis of mammary glandular cells(P
