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本文通过对73例健康新生儿脐血放射免疫法（RIA）TSH、免疫放射法（IRMA）TSH水平及绒毛膜促性腺激素（hCG）、黄体生成素（LH），卵泡刺激素（FSH）水平的测定，以了解新生儿脐血TSH－IRMA水平测定在新生儿甲状腺功能低减筛查中的价值．结果：（1）新生儿脐血hCG、LH及TSH－RIA水平高于正常，TSH－RIA水平与hCG和LH水平呈显著正相关（r值分别为0．86和0．74）．（z）77．5％的新生儿脐血TSH－IRMA水平在正常范围，TSH—IRMA水平与hCG和LH水平无明显相关性（r值分别为0．01和0．06），TSH－IRMA水平与其母亲尿碘水平呈显著性相关（r＝－0．5）．作者认为，采用脐血TSH、IRMA水平测定进行新生儿先天性甲减筛查较TSH－RIA水平测定更为可靠．
In this paper, TSH levels, TSH, LH, FSH levels in 73 healthy newborns with cord blood radioimmunoassay (RIA), immunostaining (IRMA) TSH, In order to understand the value of cord blood TSH-IRMA in neonatal screening hypothyroidism screening. Results: (1) The levels of hCG, LH and TSH-RIA in cord blood of newborns were higher than normal, and TSH-RIA levels were positively correlated with hCG and LH levels (r = 0.86 and 0.74, respectively). (Z) There were no significant correlations between TSH-IRMA levels and hCG and LH levels in 77.5% neonates with normal TSH-IRMA levels (r = 0.01 and 0.06, respectively), TSH-IRMA There was a significant correlation between the level and urinary iodine level of their mothers (r = -0.5). The authors believe that the use of umbilical cord blood TSH, IRMA level determination of neonatal congenital hypothyroidism screening TSH-RIA level determination more reliable.