Comparative immunohistolocalization of carbonic anhydrase isozymes I, II and III in the equine and bovine digestive tract

✍ Scribed by Sasaki, Kiyoaki ;Igarashi, Shin-Ichi ;Amasaki, Tomoko ;Amasaki, Hajime ;Nishita, Toshiho ;Kano, Yutaka ;Asari, Masao

• Publisher: Springer
• Year: 1993
• Tongue: English
• Weight: 797 KB
• Volume: 25
• Category: Article
• ISSN: 0018-2214
• DOI: 10.1007/bf00159122

✦ Synopsis

Immunohistochemical localizations of carbonic anhydrase isozymes (CA-I, CA-II and CA-III) in equine and bovine digestive tracts were studied. In the horse, epithelial cells in both the oesophagus and non-glandular part of the stomach lacked all three isozymes. In contrast, surface epithelial and parietal cells in the glandular region of the stomach showed reactivity for CA-II. In the small intestine, absorptive columnar cells covering the villi in the duodenum were positive for CA-II. The epithelium of the jejunum and ileum lacked all three isozymes. In the large intestine, CA-II was detected in the columnar cells in the upper part of the crypt. In cattle, epithelial cells of the oesophagus showed reactions for CA-I and CA-Ill but not for CA-II. Although the absorptive epithelial cells of the small intestine lacked CA-I, CA-II and CA-III, those of the upper part of large intestine crypts were heavily stained for all three isozymes.