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  • 1
    ISSN: 1432-1076
    Keywords: Key words Hepatitis C virus ; Chronic hepatitis C ; Natural history ; Spontaneous remission ; Children
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract The clinical course of 48 children with chronic hepatitis C (33 boys, 15 girls; mean age: 12.2 years) was monitored for more than 3 years to clarify its natural course. All patients were positive for the second-generation antibody to hepatitis C virus (anti-HCV) and for serum hepatitis C virus (HCV) RNA. All but one patient had a history of blood transfusion. Serum levels of alanine aminotransferase (ALT) had been abnormal for more than 1.5 years. Spontaneous remission defined as a biochemical remission lasting more than 1 year in association with the disappearance of serum HCV RNA, occurred in 4 (8.3%), however, in 25%, HCV RNA was still detectable in the liver even after its disappearance from serum. In this patient, the level of antibody to HCV core antigen (anti-HCV core) did not decrease significantly and serum HCV RNA eventually reappeared. The serum titre of HCV RNA in the 4 children with spontaneous remission was lower than in the remaining 44 children. Spontaneous remission may occur in children with chronic hepatitis C in whom the serum titre of HCV RNA is low and serum level of anti-HCV core decreases significantly. Assessment of the intrahepatic HCV RNA is necessary to confirm complete remission. Conclusion A low serum titre of HCV RNA and a significant decrease in the serum titre of anti-HCV core were associated with spontaneous remission in children with chronic hepatitis C. Intrahepatic HCV RNA assessment is necessary to confirm complete remission.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Experimental dermatology 8 (1999), S. 0 
    ISSN: 1600-0625
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: The present study examines the cumulative effects of sub-erythema application of squalene-monohydroperoxide (Sq-OOH), the initial products of UV-peroxidated squalene, to the skin of hairless mice. Sq-OOH was isolated by the methanol extraction and preparative HPLC method. Repeated topical application of 10mM Sq-OOH to hairless mice for 3 weeks induced definite skin roughness and crinkle formation. 3-D surface parameter analysis revealed changes in all roughness parameters (number of furrows and crests, distance between a furrows and next crest, and irregularity) of the group treated with more than 3 mM Sq-OOH compared to the control group. Theses skin surface changes were not induced by squalene, squalene-monohydroxide (Sq-OH) or organic hydroperxide such as tert-butyl hydroperoxide and cumene -hydroperoxide at 10mM. Similarly, such changes were not induced by primary irritants, such as sodium lauryl sulfate and n-tetradecane under the same experimental conditions. Skin conductance decreased, following application of 10 mM Sq-OOH. Histological observation revealed that application of 10 mM Sq-OOH induced slight hyperkeratosis, moderate epidermal thickening and slight hyperplasia of sebaceous glands.
    Type of Medium: Electronic Resource
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  • 3
    ISSN: 0022-4731
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Biology , Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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