Quantitative Analysis of Digitopalmar Dermatoglyphics in Seventy Male Psoriatic Patients
By the quantitative dermatoglyphic analysis, which is one the genetic method, was performed research in seventy male psoriatic patients to evaluation of genetic factors in the disease. Twenty five variables were determined: ridge count on each of ten fingers, their sum on five and ten fingers, four traits on each palm, i.e. ridge count between a-b, b-c and a-d triradii, their sum on each and both palm and atd angle on both palm and their bilateral sum in degrees. The data thus obtained were compared with digitopalmar prints of 200 phenotypically healthy men in Zagreb area, which are kept at Institute of Anthropology in Zagreb, who served as a control group. The statistically significant differences to control group, by the Student’s t-test, were found in sixteen variables. Ridge count was increased on the first, second, third, fourth and fifth finger bilaterally, and their sum on each, and both fists. The atd angle of both palm was reduced and in overall sum. Accordingly, a polygenic system – a few major genes with a lot of modification genes – are identical in some loci in predisposing to male psoriasis patients susceptibility, and might be found responsible for the dermatoglyphic pattern development.