フルテキストファイル
著者
Ohata Ryo Division of Urology, Department of Surgery, School of Medicine, Tottori University Faculty of Medicine
キーワード
apoptosis
bladder
estrogen
rat
抄録
Effects of estradiol (E2) on the urinary bladder of old female rats were investigated by morphological, immunohistochemical and apoptosis-related gene analysis. Sixteen-month-old female Wistar rats were divided into the following 5 groups: normal controls; rats replaced with low-dose E2 for 2 and 4 weeks, respectively; and rats replaced with high-dose E2 for 2 and 4 weeks, respectively. After treatment, the bladders were removed, weighed and stained with hematoxylin and eosin, and immunostained by monoclonal antibodies against Bcl-2 and Bax proteins. Further, the expression of apoptosis-related genes bcl-2 and bax were investigated by PCR analysis, and evaluated by computerized quantification. Immunostained bladders showed no difference between control and E2-replaced rats in reactivity against Bcl-2 protein. In contrast, against Bax protein, control rats showed immunoreactivity, whereas E2-replaced rats showed little reactivity. Upon mRNA analysis, the expression of bax mRNA was suppressed in the E2-replaced rats as compared with the controls, though the expression of bcl-2 mRNA showed no difference among groups. These results suggest that E2 administration affects the expression of apoptosis-related genes and suppressees apoptotic action, and that these changes could consequently alter voiding behavior.
出版者
Tottori University Faculty of Medicine
資料タイプ
学術雑誌論文
ISSN・ISBN
1346-8049
書誌ID
AA00892883
掲載誌名
Yonago Acta medica
最新掲載誌名
Yonago Acta medica
45
4
開始ページ
95
終了ページ
102
発行日
2002-12
著者版フラグ
出版社版
著作権表記
Yonago Acta medica 編集委員会
掲載情報
Yonago Acta medica. 2002, 45(3), 95-102
部局名
医学部・医学系研究科・医学部附属病院
言語
英語