Earliest clinical and histological changes in psoriasis.

Studies were performed in 89 patients with active psoriasis and in 10 normal volunteers. Areas of uninvolved skin of 10 x 10 cm in size were demarcated and closely observed for 14 days. In 54 patients with psoriasis, there developed very fine, erythematous papules almost skin level (with no scaling of the surface), which changed in the course of observation into typical pinpoint papules.

UV-induced DNA repair synthesis in patients with epidermodysplasia verruciformis.

Autoradiographic technique was utilized to measure UV-induced DNA repair synthesis in 8 patients with epidermodysplasia verruciformis: 2 infected with human papillomavirus 3 (HPV 3), 4 with HPV 4, and 2 simultaneously with HPV 3 and HPV 4. Two cell populations were compared, i.e.

[Changes in blood lymphocytes and their subpopulation in patients with myeloblastic leukemia treated with cytostatic agents].

Quantitative determinations of lymphocytas were done in the active period of the disease, immediately after treatment by the COAP schedule and during remission. In 6 patients the determinations were done several times during 20 weeks of maintenance treatment. It was found that independently of the stage of the disease the absolute lymphocyte count and the counts of B and T populations were low, while that of lymphocyte O population was raised.

Cell-mediated immunity in epidermodysplasia verruciformis.

Investigations were performed in 6 cases of epidermodysplasia verruciformis and 2 healthy family members. Nonspecific cell-mediated immunity (CMI) was studied by measuring response to phytohemagglutinin (PHA) and concanavalin A (Con A), percentrages of E- and EAC-rosette-forming lymphocytes, bacterial skin tests, and allergic reactions to dinitrochloro-benzene (DNCB). Impairment of CMI was manifested by reduction in the percentage of E rosettes, and lowered response to PHA, and- to a lesser degree- to Con A.