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Plasmatic vitamin C in nontreated hepatitis C patients is negatively associated with aspartate aminotransferase

Authors


Correspondence
Dr João B. T. Rocha, Departamento de Química, Centro de Ciências Naturais e Exatas, Universidade Federal de Santa Maria, Santa Maria RS 97105-900, Brazil
Tel: +55 55 32209462
Fax: +55 55 32208978
e-mail: jbtrocha@yahoo.com.br

Abstract

Objectives: To evaluate the possible relationship between aminotransferases levels and markers of oxidative stress in chronic hepatitis C patients.

Design and methods: Patients without treatment for hepatitis were divided in to group I (15–39 U/L); group II (41–76 U/L) and group III (81–311 U/L) of activity alanine aminotransferase (ALT). Blood markers of oxidative stress [catalase (CAT), glutathione peroxidase (GPx), thiobarbituric acid-reactive species (TBARS), nonprotein and protein thiol (NP-SH and P-SH) groups and vitamin C] were determined.

Results: P-SH and NP-SH levels, TBARS, GPx and CAT were not different between groups. Vitamin C was significantly decreased in groups II (P=0.03) and III (P=0.001) when compared with group I and correlated negatively with aspartate aminotransferase (AST; r=−0.29, P=0.042).

Conclusion: Vitamin C levels were negatively associated with AST, suggesting that vitamin C could be an additional indicator of hepatitis C severity.

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