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  • Title: Evaluation of serine alpha 1-antitrypsin and polymorphonuclear leukocyte elastase contents and their immunogenetic correlation in psoriasis.
    Author: Nini G, Bianchi L, Angelini E, Corleto V, Gatti S, Carrozzo AM.
    Journal: Acta Derm Venereol Suppl (Stockh); 1994; 186():143-5. PubMed ID: 8073817.
    Abstract:
    The purpose of our study was to quantify the serum content of alpha 1-antitrypsin (alpha 1-AT) and polymorphonuclear leukocyte elastase (PMN-E) in of 21 patients affected by active and stationary psoriasis, and 12 normal controls. HLA typing was also performed to identify a correlation among HLA antigens, age at onset of psoriasis and biochemical results. alpha 1-AT levels were within the normal range in all patients, even in those with active, extensive, inherited and juvenile psoriasis, and in the controls. These data allow us to exclude, in our patients, the presence of rare or defective phenotypes, frequently associated with reduced serine levels of alpha 1-AT. The PMN-E serine content was greatly increased in 3 patients, increased in 2, and slightly modified in 6 cases. All patients with the highest PMN-E levels reported a positive family history and absence of pulmonary, hepatic and atopic diseases. An increased psoriatic inheritance has been observed in the CW6-positive subjects (7/20), comparing B13 and DR6 antigen frequency. No correlation among HLA antigens, age at onset, clinical phase, or biochemical results could be established.
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