Abstract:
:The present study examined whether histamine could affect the growth of the enterochromaffin-like (ECL) cell and the parietal cell. The effects of the unsurmountable histamine H2-receptor antagonist loxtidine (80 mg/kg) and the H+, K(+)-ATPase inhibitor omeprazole (100 mumol/kg) were compared in female Sprague-Dawley rats. Both drugs were given by gavage once daily for 3 months. Omeprazole induced a more pronounced and sustained hypergastrinaemia than loxtidine. In spite of marked hypergastrinaemia during most of the day, even in the loxtidine-treated rats, the weights of the stomach and oxyntic mucosa were elevated only in the omeprazole-treated rats. The ECL cell density was slightly higher in the loxtidine- than in the omeprazole-treated rats. Both treatments elevated the gastrin-stimulated histamine release from the vascularly perfused stomach. The parietal cell density was unaffected by omeprazole treatment, whereas it tended to be reduced in the loxtidine-treated rats. Simultaneous administration of loxtidine and omeprazole reduced the sustained hypergastrinaemia induced by omeprazole given alone. The present study may indicate that histamine inhibits the growth of the ECL cell, but further studies are needed to elucidate if histamine has any trophic effect on the parietal cells.
journal_name
Aliment Pharmacol Therjournal_title
Alimentary pharmacology & therapeuticsauthors
Brenna E,Waldum HL,Sandvik AK,Schulze Søgnen B,Kristensen Adoi
10.1111/j.1365-2036.1992.tb00055.xsubject
Has Abstractpub_date
1992-06-01 00:00:00pages
335-49issue
3eissn
0269-2813issn
1365-2036journal_volume
6pub_type
杂志文章abstract:BACKGROUND:The seroclearance of hepatitis B surface antigen (HBsAg) in patients with chronic hepatitis B (CHB) is considered to be associated with favourable clinical outcomes. AIMS:This meta-analysis was performed to establish the proportion of HBsAg loss rates among CHB patients who received combination treatment ba...
journal_title:Alimentary pharmacology & therapeutics
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journal_title:Alimentary pharmacology & therapeutics
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更新日期:1987-02-01 00:00:00
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pub_type: 杂志文章
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更新日期:1989-12-01 00:00:00