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The influence of verapamil and nifedipine on hepatic indocyanine green clearance in patients with HBsAg-positive cirrhosis and ascites. 1988

C S Lay, and Y T Tsai, and C W Kong, and F Y Lee, and T T Chang, and H C Lin, and C M Yang, and S D Lee, and B N Chiang, and K J Lo
Division of Gastroenterology, Veterans General Hospital National Defense Medical Center, Taipei, Taiwan, Republic of China.

The influence of verapamil and nifedipine on hepatic indocyanine green kinetics was studied in 12 patients with HBsAg-positive cirrhosis and ascites. Hepatic clearance and its two biologic determinants, hepatic blood flow and metabolic activity (intrinsic clearance [maximum velocity/metabolite elimination rate constant, or Vmax/km]), were determined from hepatic indocyanine green elimination at steady state in patients with cirrhosis. Acute intravenous administration 10 mg verapamil significantly increased the hepatic indocyanine green blood flow (p less than 0.05), but significantly decreased the hepatic clearance (p less than 0.05), extraction ratio (p less than 0.05) and Vmax/km (p less than 0.05). However, acute sublingual administration of 10 mg nifedipine resulted in no significant change in any parameters of hepatic elimination function. These results show that verapamil, but not nifedipine, might impair the transhepatic extraction activity of hepatocytes in patients with HBsAg-positive cirrhosis and ascites.

UI MeSH Term Description Entries
D007208 Indocyanine Green A tricarbocyanine dye that is used diagnostically in liver function tests and to determine blood volume and cardiac output. Cardio-Green,Cardiogreen,Ujoveridin,Vofaverdin,Vophaverdin,Wofaverdin,Cardio Green,Green, Indocyanine
D008099 Liver A large lobed glandular organ in the abdomen of vertebrates that is responsible for detoxification, metabolism, synthesis and storage of various substances. Livers
D008103 Liver Cirrhosis Liver disease in which the normal microcirculation, the gross vascular anatomy, and the hepatic architecture have been variably destroyed and altered with fibrous septa surrounding regenerated or regenerating parenchymal nodules. Cirrhosis, Liver,Fibrosis, Liver,Hepatic Cirrhosis,Liver Fibrosis,Cirrhosis, Hepatic
D008297 Male Males
D008657 Metabolic Clearance Rate Volume of biological fluid completely cleared of drug metabolites as measured in unit time. Elimination occurs as a result of metabolic processes in the kidney, liver, saliva, sweat, intestine, heart, brain, or other site. Total Body Clearance Rate,Clearance Rate, Metabolic,Clearance Rates, Metabolic,Metabolic Clearance Rates,Rate, Metabolic Clearance,Rates, Metabolic Clearance
D008875 Middle Aged An adult aged 45 - 64 years. Middle Age
D009543 Nifedipine A potent vasodilator agent with calcium antagonistic action. It is a useful anti-anginal agent that also lowers blood pressure. Adalat,BAY-a-1040,Bay-1040,Cordipin,Cordipine,Corinfar,Fenigidin,Korinfar,Nifangin,Nifedipine Monohydrochloride,Nifedipine-GTIS,Procardia,Procardia XL,Vascard,BAY a 1040,BAYa1040,Bay 1040,Bay1040,Monohydrochloride, Nifedipine,Nifedipine GTIS
D005260 Female Females
D006514 Hepatitis B Surface Antigens Those hepatitis B antigens found on the surface of the Dane particle and on the 20 nm spherical and tubular particles. Several subspecificities of the surface antigen are known. These were formerly called the Australia antigen. Australia Antigen,HBsAg,Hepatitis B Surface Antigen,Antigen, Australia
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man

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