Document Detail


The effect of biliary bile acid concentration and composition on the calcium level in human gallbladder bile.
MedLine Citation:
PMID:  8184404     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
We analyzed total and ionized calcium concentrations in gallbladder bile of 34 humans in four groups: 8 patients with no gallstone, 11 gallstone patients treated with no gallstone dissolution agents, 8 gallstone patients treated with chenodeoxycholic acid (CDCA) and 7 gallstone patients treated with ursodeoxycholic acid (UDCA). We found that total calcium level ranged from 1.40 to 8.01 mmol/liter, closely related to total bile acid concentration (r = 0.759). However, ionized calcium level was maintained in a narrow range of 0.25 to 1.23 mmol/liter and had no relation to total bile acid concentration. UDCA-rich bile showed relatively high level of ionized calcium. We performed ultrafiltration of bile with cut-off molecular weight 1,000 to investigate the interaction between biliary calcium and bile acid aggregates. The proportion of ultrafiltrated bile acid level to that in original bile in the UDCA group was statistically higher than the other groups. Relatively large percentage of smaller bile acid aggregates in UDCA-rich bile may impair its calcium solubility.
Authors:
N Tamasawa; M Yoneda; I Makino; K Takebe; K Sone; R Kogawa
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  The Tohoku journal of experimental medicine     Volume:  171     ISSN:  0040-8727     ISO Abbreviation:  Tohoku J. Exp. Med.     Publication Date:  1993 Dec 
Date Detail:
Created Date:  1994-06-14     Completed Date:  1994-06-14     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  0417355     Medline TA:  Tohoku J Exp Med     Country:  JAPAN    
Other Details:
Languages:  eng     Pagination:  297-307     Citation Subset:  IM    
Affiliation:
Third Department of Internal Medicine, Hirosaki University School of Medicine.
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MeSH Terms
Descriptor/Qualifier:
Bile / metabolism*
Bile Acids and Salts / chemistry,  metabolism*
Calcium / metabolism*
Chenodeoxycholic Acid / therapeutic use
Cholelithiasis / drug therapy,  metabolism
Gallbladder / metabolism*
Humans
Ion-Selective Electrodes
Lipids / analysis
Ultrafiltration
Ursodeoxycholic Acid / therapeutic use
Chemical
Reg. No./Substance:
0/Bile Acids and Salts; 0/Lipids; 128-13-2/Ursodeoxycholic Acid; 474-25-9/Chenodeoxycholic Acid; 7440-70-2/Calcium

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