期刊
INTERNAL MEDICINE
卷 42, 期 8, 页码 644-649出版社
JAPAN SOC INTERNAL MEDICINE
DOI: 10.2169/internalmedicine.42.644
关键词
alcohol; amoebic liver abscess; Entamoeba histolytica; iron
Objective It is unknown why most amoebic liver abscess (ALA) cases occur in alcohol drinkers. In experimental studies, the presence of 'iron' potentiates the in-vitro growth of Entamoeba histolytica (E. histolytica), and is also known to increase its in-vivo invasiveness in animal infections. Chronic alcoholism increases the hepatic iron deposition. We hypothesized that ALA occurs more commonly in livers with a high iron load as in alcoholics. To test this hypothesis we compared the levels of iron between ALA and non-ALA cases belonging to alcoholic and non-alcoholic groups. Methods Out of a total of 48 ALA cases, 34 (70%) were alcoholics and 14 (30%) were non-alcoholics. After applying exclusion criteria, serum iron and liver iron stores were quantified in 20 ALA cases (10 alcoholic and 10 non-alcoholics) and compared with 20 non-ALA cases (10 alcoholics and 10 non-alcoholics). Results All patients of ALA had serum iron values within the normal range but higher than non-ALA cases. In the liver tissue, most patients with ALA had higher (grade II or III) iron deposition, than non-ALA cases (mostly grade I). Thus, patients with ALA, with or without alcohol indulgence, had higher iron levels when compared to the non-ALA cases. Conclusion It appears that the higher incidence of ALA in alcoholic livers is possibly due to their higher iron content.
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