Tag Archives: bullous disease

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Background  Bullous skin diseases are known to be associated with significant morbidity and mortality. There have been no studies on mortality from severe bullous skin diseases in Canada.

Methods  We used mortality data from the Statistics Canada website from 2000 to 2007 for three major bullous skin diseases: bullous pemphigoid; pemphigus; and toxic epidermal necrolysis (TEN). Crude and age-standardized mortality rates were calculated and compared with the corresponding US mortality rates. Linear regression was used to assess time trend and effect of gender and age on mortality rates.

Results  During the period of eight years, there were 115 deaths attributed to pemphigoid, 84 to pemphigus, and 44 to TEN. The crude annual mortality rate was the highest for pemphigoid (0.045 per 100,000), followed by pemphigus (0.033), and TEN (0.017). None of these conditions demonstrated significant time trends in mortality rates over the eight-year period, although a trend towards decreasing pemphigus mortality was observed (P = 0.07). No gender difference in mortality was observed, but advanced age was associated with mortality in all three conditions.

Conclusion  Among bullous skin diseases, pemphigoid is the leading cause of mortality in Canada. This is in contrast to the USA, where TEN is the leading cause of mortality from bullous skin diseases. It is not clear whether differences in healthcare systems explain these findings.

Full article available at: http://onlinelibrary.wiley.com/doi/10.1111/j.1365-4632.2011.05227.x/abstract;jsessionid=FAE06EFE4AF802D50261B2992F71D91D.d02t01?systemMessage=Wiley+Online+Library+will+be+disrupted+on+27+October+from+10%3A00-12%3A00+BST+%2805%3A00-07%3A00+EDT%29+for+essential+maintenance

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Fogo Selvagem (FS) is an autoimmune bullous disease with pathogenic IgG autoantibodies recognizing desmoglein 1 (Dsg1), a desmosomal glycoprotein. In certain settlements of Brazil, a high prevalence of FS (3%) is reported, suggesting environmental factors as triggers of the autoimmune response. Healthy individuals from endemic areas recognize nonpathogenic epitopes of Dsg1, and exposure to hematophagous insects is a risk factor for FS. Fogo selvagem and Chagas disease share some geographic sites, and anti-Dsg1 has been detected in Chagas patients. Indeterminate Chagas disease was identified in a Brazilian Amerindian population of high risk for FS. In counterpart, none of the FS patients living in the same geographic region showed reactivity against Trypanosoma cruzi. The profile of anti-Dsg1 antibodies showed positive results in 15 of 40 FS sera and in 33 of 150 sera from healthy individuals from endemic FS sites, and no cross-reactivity between Chagas disease and FS was observed.

Authors: Sousa JX, Diaz LA, Eaton DP, Hans-Filho G, Lanzani de Freitas E, Delgado L, Ichimura LM, Cristaldi F, Orlandi R, Kesper N, Umezawa ES, Rivitti EA, Aoki V, The Cooperative Group on Fogo Selvagem Research Abstract Fogo Selvagem (FS) is an autoimmune bullous disease with pathogenic IgG autoantibodies recognizing desmoglein 1 (Dsg1), a desmosomal glycoprotein. In certain settlements of Brazil, a high prevalence of FS (3%) is reported, suggesting environmental factors as triggers of the autoimmune response. Healthy individuals from endemic areas recognize nonpathogenic epitopes of Dsg1, and exposure to hematophagous insects is a risk factor for FS. Fogo selvagem and Chagas disease share some geographic sites, and anti-Dsg1 has been detected in Chagas patients. Indeterminate Cha…

from MedWorm: Pemphigus http://www.medworm.com/index.php?rid=6297741&cid=c_297_159_f&fid=37409&url=http%3A%2F%2Fwww.ncbi.nlm.nih.gov%2FPubMed%2F22826496%3Fdopt%3DAbstract