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- W4387380412 abstract "Abstract Disclosure: M. Trofimiuk-Muldner: None. A.J. Nowak: None. J. Podlewski: None. A. Hubalewska-Dydejczyk: None. The influence of hyperinsulinemia on thyroid function is debatable. Insulin as an anabolic hormone may be responsible for thyroid hypertrophy and nodular development. The interplay between insulin and the function of the pituitary-thyroid axis may influence thyroid tests’ results and their interpretation. This study evaluated the association between thyroid hormones and insulin resistance in pregnant women. The study group was recruited from the Polish National Program for Elimination of Iodine Deficiency, conducted between 2007-2017. We assessed the fasting glucose, insulin levels, thyroid hormones (TSH, FT4, FT3), and ATPO antibodies in 1069 pregnant women (median age 29 years, IQR 6 years). Based on calculated HOMA-IR, participants were stratified into three subgroups HOMA1 (324 women with HOMA-IR < 1), HOMA 2 (570 women with HOMA-IR ≥1& <2.5) and HOMA3 (175 women with HOMA-IR ≥ 2.5). Results: Median (IQR) TSH concentrations were 1.42 (1.33) mIU/L, 1.65 (1.31) mIU/L, and 1.77 (1.29) mIU/L in HOMA1, HOMA2, and HOMA3 subgroups, respectively. Median (IQR) FT4 concentrations were 12.9 (3.0) pmol/L, 12.48 (2.85) pmol/L, and 11.38 (2.8) pmol/L in HOMA1, HOMA2, and HOMA3 subgroups, respectively. Median (IQR) FT3 concentrations were 4.79 (1.75) pmol/L, 4.6 (1.02) pmol/L, and 4.47 (0.88) pmol/L in HOMA1, HOMA2, and HOMA3 subgroups, respectively. Median (IQR) aTPO concentrations were 10 (11.34) IU/L, 11.59 (8.54) IU/L, and 10.15 (7.5) mIU/L in HOMA1, HOMA2, and HOMA3 subgroups, respectively. HOMA1 and HOMA2 subgroups differed significantly in TSH (p=0.026) and FT3concentrations (p=0.001). HOMA2 and HOMA3 subgroups differed significantly in FT4 (p<0.001) and aTPO concentrations (p=0.045). HOMA1 and HOMA3 patients differed in TSH (p=0.001), FT4 (p<0.001), and FT3 (p=0.001) concentrations. aTPO-positivity was not related to HOMA-IR values (mean HOMA-IR in aTPO-positive andaTPO-negative women were 1.63 and 1.80 respectively, p=0.32). Conclusions: Insulin resistance may impact thyroid function in pregnancy independently of thyroid autoimmunity, with higher TSH and lower thyroid hormones concentrations in pregnant women with higher HOMA-IR indices. Presentation: Friday, June 16, 2023" @default.
- W4387380412 created "2023-10-06" @default.
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- W4387380412 date "2023-10-01" @default.
- W4387380412 modified "2023-10-16" @default.
- W4387380412 title "FRI491 The Impact Of Insulin Resistance On Thyroid Function In Pregnancy" @default.
- W4387380412 doi "https://doi.org/10.1210/jendso/bvad114.1837" @default.
- W4387380412 hasPublicationYear "2023" @default.
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