A review of cognitive impairment and cerebral metabolite abnormalities in patients with hepatitis C infection
A review of cognitive impairment and cerebral metabolite abnormalities in patients with hepatitis C infection
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DOI:
10.1097/01.aids.0000192071.72948.77
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发表时间:
2005-10-01
期刊:
影响因子:
3.8
通讯作者:
Taylor-Robinson, SD
中科院分区:
文献类型:
--
作者:
Forton, DA;Allsop, JA;Taylor-Robinson, SD
Numerous studies have reported associations between chronic hepatitis C virus (HCV) infection and fatigue, depression and impairments in health-related quality of life, which are independent of the severity of liver disease. Although there are a large number of potential explanations for these symptoms, including a history of substance abuse and associated personality types, or the effect of the diagnosis of HCV infection itself, there has been recent interest in the possibility of a biological effect of HCV infection on cerebral function. There is emerging evidence of mild, but significant neurocognitive impairment in HCV infection, which cannot be wholly attributed to substance abuse, co-existent depression or hepatic encephalopathy. Impairments are predominantly in the domains of attention, concentration and information processing speed. Furthermore, in-vivo cerebral magnetic resonance spectroscopy studies in patients with hepatitis C and normal liver function have reported elevations in cerebral choline-containing compounds and reductions in N-acetyl aspartate, suggesting that a biological mechanism may underlie the cognitive findings. The recent detection of HCV genetic sequences in post-mortem brain tissue raises the intriguing possibility that HCV infection of the central nervous system may be related to the reported neuropsychological symptoms and cognitive impairment. (c) 2005 Lippincott Williarns & Wilkins.