Correlation of number of intrathyroid lymphocytes with antimicrosomal antibody titer in Hashimoto's thyroiditis.
ABSTRACT The variants of Hashimoto's thyroiditis (classic, florid, and fibrotic types) differ in clinical manifestations, laboratory tests, and morphology. The titers of autoantibodies correlate with the degree of thyroidal lymphocytic infiltration (Wislon et al., 1998(5)) It appears that the density of lymphocytes is inversely proportional to antimicrosomal antibody (AMA) titer. The aim of the present study is to determine the precise relationship between the number of lymphocytes and AMA titer. It may be useful to predict the onset of the disease in subclinically hypothyroid patients. In 62 cases of cytologically confirmed Hashimoto's thyroiditis, the number of lymphocytes per high-power field was counted and correlated with AMA titer. The grading of lymphocytes was done as 1 (<10/HPF), 2 (11-20/HPF), and 3 (>/=21/HPF). The results showed no correlation between lymphocyte number and AMA titer.
- Clinical Endocrinology 05/1992; 36(4):307-23. · 3.40 Impact Factor
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ABSTRACT: Recently the tendency to produce autoantibodies to thyroid peroxidase (TPO Ab) and thyroglobulin (Tg Ab) was shown to be inherited as an autosomal dominant characteristic in women but not in men. Because of potential bias in this study which was carried out in families with autoimmune thyroid disease (AITD), the inheritance of thyroid autoantibodies has been evaluated in 49 families unselected for autoimmune thyroid disease. Among these families (24 with facioscapulohumeral disease, 10 with Friedreich's ataxia, and 15 with schizophrenia) the prevalences of TPO Ab and Tg Ab were 27.8% and 26.7%, respectively, in women and 9.2% and 11.7%, respectively, in men. In 40 families where one or more individual had TPO Ab and/or Tg Ab, segregation analysis showed that the tendency to make antibodies was consistent with a Mendelian dominant trait in women but not in men. In young women, however, the prevalence of both TPO Ab and Tg Ab increased with age, rising from 14% and 10%, respectively, at age 15-24 to 35% and 40% at age 35-44. As this is inconsistent with a simple dominant hypothesis, a further segregation analysis by age was carried out in the families unselected for thyroid disease together with 16 pedigrees with AITD previously studied and two additional large AITD families. The results of the combined analysis provided strong support for the hypothesis of dominant inheritance but also showed significant reduction in gene expression among women aged 15-24 yr.Journal of Clinical Endocrinology & Metabolism 06/1991; 72(5):973-5. · 6.43 Impact Factor
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ABSTRACT: Postmortem histological examination of the thyroid gland and measurement of serum antithyroid antibodies were performed in 70 patients without overt thyroid disease. Lymphocytic infiltration, antithyroglobulin hemagglutination antibody (TGHA), and antithyroid microsomal hemagglutination antibody (MCHA) were found in 12, 2, and 9 cases, respectively. The incidence of lymphocytic infiltration in females was three times that in males. Ten of the 12 cases with lymphocytic infiltration had positive antibodies (either TGHA or MCHA), while 10 of 11 patients with positive antibodies showed lymphocytic infiltration. Thus, the correlation between morphological and serological findings was highly significant at P less than 0.001. The incidence of a small thyroid gland of less than 15 g in weight was higher in patients with lymphocytic infiltration and/or positive antibodies than in patients with a normal thyroid gland. These data suggest that positive serum antithyroid antibodies in subjects without overt thyroid disease may indicate the existence of lymphocytic infiltration in the thyroid gland, that is presumably subclinical autoimmune thyroiditis.Journal of Clinical Endocrinology & Metabolism 07/1978; 46(6):859-62. · 6.43 Impact Factor