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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 
 
 

Prevalence of islet cell antibodies and B cell functional status in insulin dependent diabetes.

As autoimmunity is an important factor in the etiopathogenesis of IDDM, 85 ketosis prone i.e. insulin dependent diabetes (IDD) were evaluated for immunological and beta cell functional status. Islet cell antibodies (ICA) against purified islet cells used in Microwell ELISA Method, were detected in 27.1% of cases (23/85). There was a prevalence of 36.4% of ICA positivity in newly diagnosed cases and its prevalence declined with duration. The highest ICA positivity was observed in fourth decade of life. 17 of the 23 ICA positive cases (73.9%) had a mean duration of 2.1 years whereas the remaining 6/23 (26.1%) had a mean duration of 9 years. Females showed a younger age of onset of diabetes. Only one female with duration of 10 years tested positive for ICA.ICA positive males had later age of onset and longer duration of diabetes as compared to ICA positive females. Ten ICA positive cases studied were showing non-significant C-peptide (CP) release (after glucose load) in comparison to negative cases (14); p < 0.05, 8 of these cases were with < 3 months duration. Significantly low delta % C-peptide response implies a low residual beta-cell function and further loss of beta cell function earlier in ICA +ve cases. Thus this study leads to understand in depth the immune mechanism of IDDM.[1]

References

  1. Prevalence of islet cell antibodies and B cell functional status in insulin dependent diabetes. Merchant, P.C., Godse, C.S., Varthakavi, P.K., Patel, K.L., Nihalani, K.D. The Journal of the Association of Physicians of India. (1996) [Pubmed]
 
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