PMID- 31773995 OWN - NLM STAT- MEDLINE DCOM- 20201125 LR - 20201125 IS - 1532-4206 (Electronic) IS - 0743-5800 (Linking) VI - 45 IP - 2 DP - 2020 Feb-May TI - Association between Free Thyroxine Levels and Diabetic Retinopathy in Euthyroid Patients with Type 2 Diabetes Mellitus. PG - 111-118 LID - 10.1080/07435800.2019.1690504 [doi] AB - Background: This study aimed to evaluate the association between thyroid parameters and diabetic retinopathy (DR) in euthyroid patients with type 2 diabetes mellitus (T2DM).Materials and Methods: In this cross-sectional study, a total of 911 euthyroid patients with T2DM (539 men and 372 women; mean age, 60.81 +/- 12.93 years) were enrolled. Clinical factors were assessed and free triiodothyronine (FT3), free thyroxine (FT4) and thyroid-stimulating hormone (TSH) levels were measured. DR was diagnosed using fundus fluorescein angiography.Results: Compared with patients without DR (n = 718), patients with DR (n = 193) exhibited lower FT3 (4.40 +/- 0.58 vs. 4.50 +/- 0.51 pmol/L; P = .019) and FT4 (14.86 +/- 2.09 vs. 15.91 +/- 2.18 pmol/L; P < .001) and higher TSH (1.86 [1.22, 2.66] vs. 1.58 [1.14, 2.34] microIU/mL; P = .015) levels. After adjustment for potential DR risk factors, patients in the highest tertile of plasma FT4 levels had a 0.332-fold likelihood of developing DR compared with those in the lowest tertile of plasma FT4 levels (P(trend) < 0.001). The prevalence of DR showed a significantly decreasing trend across the three tertiles based on FT4 levels (31.35%, 19.08% and 13.16%; P(trend) < 0.001). Similar results were obtained for the presence of proliferative DR.Conclusion: These findings suggest that low-normal FT4 levels are associated with the prevalence of DR in euthyroid patients with T2DM. FAU - Kong, Xiaocen AU - Kong X AD - Department of Endocrinology, Nanjing First Hospital, Nanjing Medical University, Nanjing, China. FAU - Wang, Jian AU - Wang J AD - Department of intensive care unit, Women's Hospital of Nanjing Medical University, Nanjing Maternity and Child Health Care Hospital, Nanjing, China. FAU - Gao, Gu AU - Gao G AD - Department of Endocrinology, Nanjing First Hospital, Nanjing Medical University, Nanjing, China. FAU - Tan, Mingjuan AU - Tan M AD - Department of Clinical Laboratory, Nanjing First Hospital, Nanjing Medical University, Nanjing, China. FAU - Ding, Bo AU - Ding B AD - Department of Endocrinology, Nanjing First Hospital, Nanjing Medical University, Nanjing, China. FAU - Li, Huiqin AU - Li H AD - Department of Endocrinology, Nanjing First Hospital, Nanjing Medical University, Nanjing, China. FAU - Ma, Jianhua AU - Ma J AD - Department of Endocrinology, Nanjing First Hospital, Nanjing Medical University, Nanjing, China. LA - eng PT - Journal Article DEP - 20191127 PL - England TA - Endocr Res JT - Endocrine research JID - 8408548 RN - 06LU7C9H1V (Triiodothyronine) RN - 9002-71-5 (Thyrotropin) RN - Q51BO43MG4 (Thyroxine) SB - IM MH - Adult MH - Aged MH - Cross-Sectional Studies MH - Diabetes Mellitus, Type 2/*blood/complications/epidemiology MH - Diabetic Retinopathy/*blood/epidemiology/etiology MH - Female MH - Humans MH - Male MH - Middle Aged MH - Prevalence MH - Thyroid Function Tests/statistics & numerical data MH - Thyrotropin/*blood MH - Thyroxine/*blood MH - Triiodothyronine/*blood OTO - NOTNLM OT - Diabetic retinopathy OT - free thyroxine OT - thyroid OT - type 2 diabetes mellitus EDAT- 2019/11/28 06:00 MHDA- 2020/11/26 06:00 CRDT- 2019/11/28 06:00 PHST- 2019/11/28 06:00 [pubmed] PHST- 2020/11/26 06:00 [medline] PHST- 2019/11/28 06:00 [entrez] AID - 10.1080/07435800.2019.1690504 [doi] PST - ppublish SO - Endocr Res. 2020 Feb-May;45(2):111-118. doi: 10.1080/07435800.2019.1690504. Epub 2019 Nov 27.