Abstract:
:The effects of galanin on pancreatic carcinogenesis induced by azaserine and on the norepinephrine concentration in the pancreas were investigated in male Wistar rats. Rats were given weekly injections of 10 mg/kg body weight of azaserine for 25 weeks and 8 microg/kg body weight of galanin in depot form every other day for 62 weeks. Azaserine-induced pancreatic lesions were examined with hematoxylin and eosin and histochemical techniques. In week 62, quantitative histological examination showed that prolonged administration of galanin significantly reduced the number and size (as percent of parenchyma) of adenosine triphosphatase-positive pancreatic lesions, which are correlated closely with the ultimate development of pancreatic cancer. The number of pancreatic adenocarcinomas in rats treated with galanin was significantly less than in controls. Galanin also significantly decreased the bromodeoxyuridine-labeling index of azaserine-induced pancreatic lesions and the norepinephrine concentration in the pancreas. Our findings indicate that galanin inhibits pancreatic carcinogenesis and that such inhibition may be related to the suppression of sympathetic nervous system activity and subsequently to the inhibition of cell proliferation in neoplastic lesions of the pancreas.
journal_name
Int J Cancerjournal_title
International journal of cancerauthors
Iishi H,Tatsuta M,Baba M,Yano H,Iseki K,Uehara H,Nakaizumi Adoi
10.1002/(sici)1097-0215(19980130)75:3<396::aid-ijcsubject
Has Abstractpub_date
1998-01-30 00:00:00pages
396-9issue
3eissn
0020-7136issn
1097-0215pii
10.1002/(SICI)1097-0215(19980130)75:3<396::AID-IJCjournal_volume
75pub_type
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