Journal
MEDICAL SCIENCE MONITOR
Volume 22, Issue -, Pages 1171-1179Publisher
INT SCIENTIFIC INFORMATION, INC
DOI: 10.12659/MSM.895953
Keywords
Anemia, Neonatal; Kidney Failure, Chronic; Renal Insufficiency, Chronic
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Funding
- National Natural Science Foundation of China [31300811]
- Scientific Research Foundation for the Returned Overseas Chinese Scholars, Ministry of Education of China [201550004]
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Background: There are few data on the prevalence of low T3 (triiodothyronine) syndrome in patients with non-dialysis chronic kidney disease (CKD) and it is unclear whether low T3 can be used to predict the progression of CKD. Material/Methods: We retrospectively studied 279 patients who had been definitively diagnosed with CKD, without needing maintenance dialysis. Thyroid function was analyzed in all enrolled subjects and the incidence of thyroid dysfunction (low T3 syndrome, low T4 syndrome, and subclinical hypothyroidism) in patients at different stages of CKD was determined. Results: Glomerular filtration rate (GFR) of CKD patients was estimated as follows: 145 subjects (52%) had GFR <60 ml/min per 1.73 m(2); 47 subjects (16.8%) had GFR between 30 and 59 ml/min per 1.73 m(2), and 98 subjects (35.1%) had GFR < 30 ml/min per 1.73 m(2). Among all enrolled subjects, 4.7% (n=13) had subclinical hypothyroidism, 5.4% (n=15) had low T4 syndrome, and 47% (n=131) had low T3 syndrome. In 114 CKD patients in stages 3-5, serum T3 was positively related to protein metabolism (STP, PA, and ALB) and anemia indicators (Hb and RBC), and negatively related to inflammatory status (CRP and IL-6). Conclusions: A high prevalence of low T3 syndrome was observed in CKD patients without dialysis, even in early stages (1 and 2). The increasing prevalence of low T3 as CKD progresses indicates its value as a predictor of worsening CKD. Furthermore, low T3 syndrome is closely associated with both malnutrition-inflammation complex syndrome (MICS) and anemia.
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