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  • Title: [The relationship of serum mitochondrial creatine kinase and rotavirus gastroenteritis in pediatric patients].
    Author: Hoshino T, Hosokawa N, Kumasaka K, Kawano K.
    Journal: Rinsho Byori; 2001 Jun; 49(6):597-602. PubMed ID: 11452549.
    Abstract:
    The objective of this study was to investigate the relationship between serum mitochondrial creatine kinase(mCK) and rotavirus gastroenteritis in pediatric patients. Stool and serum specimens were simultaneously collected from 45 patients(25 males and 20 females) with suspected rotavirus gastroenteritis from January to December 1998. Stool specimens were tested by rotavirus latex agglutination assay. Fourteen patients(10 males, 4 females) were proved as positive, and peak season was in winter and early spring(7 positive cases in March). Six of the 14 were younger than one and 7 were between one and two. Total serum CK activity was measured by The Japan Society of Clinical Chemistry (JSCC) recommended method, and mCK activity was calculated from mCK fraction % obtained by CK isoenzyme electrophoresis. Patients' mCK activities were as follows, rotavirus antigen positive patients(n = 14): 60.0 +/- 20.6 U/l and rotavirus antigen negative patients(n = 31): 7.2 +/- 5.5 U/l. Significant difference was observed between rotavirus antigen positive group and rotavirus antigen negative group(p < 0.01), and control children group(n = 105): 7.1 +/- 2.9 U/l, (p < 0.01). The clinical implications and mechanisms of increased serum mCK activity are unclear. It is known that histological study of the small intestine from rotavirus gastroenteritis patients reveal shortened villi and mononuclear cell infiltration of the lamia propria; electron microscopy shows mitochondrial swelling and sparse irregular microvilli. Elevated serum mCK level of rotavirus gastroenteritis patient may therefore reflect diffused intestinal epithelial cell damage.
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