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M K Hordinsky

Publications and source records attributed to M K Hordinsky.

41 records · Page 3Linked to original sources
PubMed1984

Familial alopecia areata. HLA antigens and autoantibody formation in an American family.

Ten members of a white American family, spanning three generations, were studied. Three family members from two different generations were affected with hair loss. Two had alopecia universalis; one had alopecia areata. All subjects were HLA-typed using 131 antiserum samples obtained from multiparous female donors defining 41 HLA-A and HLA-B antigen specificities. Six haplotypes were identified. The affected persons and four other family members shared a common haplotype, HLA-A2,B40. The OKT4 (helper), OKT8 (suppressor-cytotoxic) cells, OKT4-OKT8 (helper-suppressor-cytotoxic) ratios and the percentage of B cells found were comparable for both the 12 control subjects and the family members studied. However, family members showed increased autoantibody formation, decreased T-cell percentages, and concanavalin A-induced suppression of the normal lymphocyte response to mitogens.

Adolescent↗
PubMed1984

Suppressor cell number and function in alopecia areata.

Several values of immunologic function were studied and correlated with disease activity and extent in 14 patients with alopecia areata, alopecia totalis, or alopecia universalis and in a concurrently studied age- and sex-matched control group. As compared with the control group, the patients showed a significantly increased incidence of autoantibody formation, increased concanavalin A-induced suppression of the normal lymphocyte response to mitogens, an increased proportion of suppressor-cytotoxic cells in the peripheral blood, and a decrease in the absolute B-cell count. Absolute total T-cell counts, quantitative serum immunoglobulin determinations, and lymphocyte proliferation after exposure to the mitogens--concanavalin A, phytohemagglutinin, and pokeweed--and to tetanus antigen were comparable for both groups. Neither the percentage of concanavalin A-induced suppression of the normal lymphocyte response to mitogens nor the helper-suppressor ratio correlated significantly with the extent of hair loss. However, patients, particularly those who demonstrated spontaneous regrowth of hair, had increased concanavalin A-induced suppression in conjunction with an increase in the proportion of peripheral suppressor cells.

Adolescent↗
PubMedDate not supplied

Lifetime prevalence of psychiatric disorders in patients with alopecia areata.

Thirty-one patients with alopecia areata were administered a structured psychiatric interview (the Diagnostic Interview Schedule; DIS). Overall, 74% had one or more lifetime psychiatric diagnoses. Particularly noteworthy were the high lifetime prevalence rates of major depression (39%) and generalized anxiety disorder (39%). In addition, patients reported increased rates of psychiatric disorders in first-degree relatives: anxiety disorders (58%), affective disorders (35%), and substance use disorders (35%). Patients with patchy alopecia areata were more likely to have a diagnosis of generalized anxiety disorder. No relationships were found between major depression and any variable characterizing alopecia areata history. Possible interrelationships between psychiatric disorders and alopecia areata are discussed. The study suggests that patients with alopecia areata are at increased risk for psychiatric disorders, and calls attention to the need for psychiatric assessment in this population.

Adolescent↗
PubMedDate not supplied

Inheritance of melanocytic tumors in Duroc swine.

Phenotypes, with respect to cutaneous melanocytic lesions, of 37 Duroc swine from five matings were analyzed prospectively. No evidence for a recessive or X-linked trait was found. Larger numbers of animals will have to be studied to determine whether the presence of these tumors is a multifactorial or autosomal dominantly transmitted trait.

Animals↗