Thyroid function of Uygur patients with local Curtin in Xinjiang / 中华地方病学杂志

ABSTRACT

Objective To determine the serum thyroid hormone level of Uygur patients with local Curtin in southern Xinjiang region, to understand the thyroid function of Curtin disease in terms of diagnosis, treatment and prevention and to provide a background information.Methods One hundred and eighty-eight Uygur endemic cretinism were selected as cases [divided into neuval (144), myxedematous (19), mixed type groups (25)], 121 local healthy people as control group, 125 mothers of the case group as mother group from southern Xinjiang region from September 2014 to October 2014, 3 ml venous blood sample was collected of each subject, serum thyroid stimulating hormone (TSH), triiodothyronine (T3), tyroxine (T4), free triiodothyonine (FT3), free tyroxine (FT4), anti-thyroglobulin antibody (A-TG), and thyroid peroxidase antibody (A-TPO) levels were tested.Results There were statistically significant differences of the thyroid function index (T3, T4, FT3, FT4) between the four groups (neural, myxedematous type, mixed type cretinism patients and control groups, F =22.92, 42.58, 38.84, 56.31, 103.29, all P ＜ 0.05).Levels of T3, T4, FT3, FT4 [(2.41 ± 0.48), (118.72 ± 20.92)nmol/L, (5.25 ± 0.98), (15.81 ± 2.60)pmol/L] in neural type patients were significantly higher than those of myxedematous type patients [(1.51 ± 0.73), (39.25 ±16.95)nmol/L, (3.02 ± 1.05), (6.42 ± 1.99)pmol/L], TSH was lower than that of myxedematous type patients [(2.26 ±1.04) vs.(58.56 ± 24.83)mU/L, all P ＜ 0.05];mixed type patients T3, T4, FT3, FT4 [(2.38 ± 0.38), (120.77 ±21.55)nmol/L, (5.14 ± 0.83), (15.58 ± 2.99)pmol/L] were significantly higher than those of myxedematous type patients, TSH was lower than that of myxedematous type patients [(2.83 ± 0.91) vs.(58.56 ± 24.83) mU/L, all P ＜0.05];myxedematous type patients T3, T4, FT3, FT4 were significantly lower than those of control group [(2.53 ± 0.50),(121.93 ± 22.01)nmol/L, (5.49 ± 0.82), (15.93 ± 2.76) pmol/L], and TSH was higher than that of control group [(2.94 ± 1.17)mU/L, all P ＜ 0.05].TSH of neural type patients [(2.05 ± 1.45)mU/L] was lower than that of mother group [(2.27 ± 1.63)mU/L, t =10.57, P ＜ 0.05];T3, T4, FT3, FT4 of myxedematous type patients [(1.81 ± 0.66),(56.73 ± 29.56)nmol/L, (2.97 ± 1.34), (5.95 ± 2.74)pmol/L] were significantly lower than those of mother group [(2.16 ± 0.35), (125.48 ± 24.78)nmol/L, (4.29 ± 0.42), (14.90 ± 2.38)pmol/L], and TSH of mother group [(2.35 ±0.56)mU/L] was lower than that of myxedematous type patients [(57.72 ± 44.69)mU/L, t =7.59, 7.07, 16.07, 10.95,245.23, all P ＜ 0.05].There was no significant difference in comparison of A-TG and A-TPO in the four groups (x2 =1.60, 3.64, all P ＞ 0.05).Conclusion The neural type patients and the mixed type patients have normal thyroid function, the myxedematous type patients have obviously lower thyroid function.