Relationship between tetrahydrobiopterin and portal hypertension in patients with chronic liver disease

Won Ki Hong, Kwang Yong Shim, Soon Koo Baik, Moon Young Kim, Mee Yon Cho, Yoon Ok Jang, Young Shik Park, Jin Han, Gaeun Kim, Youn Zoo Cho, Hye Won Hwang, Jin Hyung Lee, Myeong Hun Chae, Sang Ok Kwon

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Abstract

Tetrahydrobiopterin (BH4) is an essential cofactor in NO synthesis by endothelial nitric oxide synthase (eNOS) enzymes. It has been previously suggested that reduced intrahepatic BH4 results in a decrease in intrahepatic NO and contributes to increased hepatic vascular resistance and portal pressure in animal models of cirrhosis. The main aim of the present study was to evaluate the relationship between BH4 and portal hypertension (PHT). One hundred ninety-three consecutive patients with chronic liver disease were included in the study. Liver biopsy, measurement of BH4 and hepatic venous pressure gradient (HVPG) were performed. Hepatic fibrosis was classified using the Laennec fibrosis scoring system. BH4 levels were determined in homogenized liver tissues of patients using a high performance liquid chromatography (HPLC) system. Statistical analysis was performed to evaluate the relationship between BH4 and HVPG, grade of hepatic fibrosis, clinical stage of cirrhosis, Child-Pugh class. A positive relationship between HVPG and hepatic fibrosis grade, clinical stage of cirrhosis and Child-Pugh class was observed. However, the BH4 level showed no significant correlation with HVPG or clinical features of cirrhosis. BH4 concentration in liver tissue has little relation to the severity of portal hypertension in patients with chronic liver disease.

Original languageEnglish
Pages (from-to)392-399
Number of pages8
JournalJournal of Korean medical science
Volume29
Issue number3
DOIs
Publication statusPublished - 2014 Jan 1

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All Science Journal Classification (ASJC) codes

  • Medicine(all)

Cite this

Hong, W. K., Shim, K. Y., Baik, S. K., Kim, M. Y., Cho, M. Y., Jang, Y. O., Park, Y. S., Han, J., Kim, G., Cho, Y. Z., Hwang, H. W., Lee, J. H., Chae, M. H., & Kwon, S. O. (2014). Relationship between tetrahydrobiopterin and portal hypertension in patients with chronic liver disease. Journal of Korean medical science, 29(3), 392-399. https://doi.org/10.3346/jkms.2014.29.3.392