Ticlopidine induced colitis: a histopathological study including apoptosis

被引:56
作者
Berrebi, D
Sautet, A
Flejou, JF
Dauge, MC
Peuchmaur, M
Potet, F
机构
[1] Hop Beaujon, Serv Anat, Paris, France
[2] Hop Beaujon, Serv Cytol, Paris, France
[3] Hop Robert Debre, Serv Anat, F-75019 Paris, France
[4] Hop Robert Debre, Serv Cytol Pathol, F-75019 Paris, France
[5] Hop Bichat, Serv Anat, F-75877 Paris, France
[6] Hop Bichat, Serv Cytol Pathol, F-75877 Paris, France
关键词
apoptosis; microscopic colitis; ticlopidine;
D O I
10.1136/jcp.51.4.280
中图分类号
R36 [病理学];
学科分类号
100104 ;
摘要
Aims-To describe ticlopidine related microscopic colitis and to assess the occurrence of apoptosis in the colon epithelium. Methods-A series of colorectal biopsy samples from nine patients with ticlopidine related chronic diarrhoea were analysed. Biopsies were also taken from five of these patients between two and four months after ticlopidine withdrawal. The number of apoptotic cells in the crypts/mm(2) (apoptotic index) was calculated using in situ labelling by terminal deoxyribonucleotidyl transferase (TdT) mediated dUTP-biotin nick end labelling (TUNEL). All specimens were matched to normal colorectal specimens from a control group of comparable age and sex distribution. Results-Histological examination of the colon biopsy specimens taken from all nine patients with ticlopidine related chronic diarrhoea showed characteristic features of microscopic colitis. The histology returned to normal when ticlopidine was withdrawn. Apoptotic cells were rarely found in controls, and the mean apoptotic index was 0.53. The apoptotic index was significantly higher (16.53) in ticlopidine related colitis, but decreased dramatically to control value when ticlopidine was withdrawn. Conclusion-Microscopic colitis can be induced by ticlopidine and is accompanied by an increase in epithelial apoptosis. Hence, increased apoptosis might be related to drug injury or might be part of microscopic colitis.
引用
收藏
页码:280 / 283
页数:4
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