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ArtikelRole of Insulin Resistance in Predicting Progression to Type 1 Diabetes  
Oleh: Xu, Ping ; Cuthbertson, David ; Greenbaum, Carla ; Palmer, Jerry P. ; Krischer, Jeffrey P. ; The Diabetes Prevention Trial–Type 1 Study Group
Jenis: Article from Journal - ilmiah internasional
Dalam koleksi: Diabetes Care vol. 30 no. 09 (Sep. 2007), page 2314.
Topik: DPT-1; Diabetes Prevention Trial–Type 1 ; FPIR; first-phase insulin response ; HOMA-IR; homeostasis model assessment of insulin resistance ; IAA; insulin autoantibody ; ICA; islet cell antibody ; IVGTT; intravenous glucose tolerance test ; OGTT; oral glucose tolerance test
  • Perpustakaan FK
    • Nomor Panggil: D05.K.2007.03
    • Non-tandon: 1 (dapat dipinjam: 0)
    • Tandon: tidak ada
    Lihat Detail Induk
Isi artikelOBJECTIVE—The purpose of this study was to determine whether insulin resistance is a risk factor for the development of type 1 diabetes in autoantibody-positive first-degree relatives of diabetic family members. RESEARCH DESIGN AND METHODS—Subjects (n = 186) who had a projected 25–50% risk for diabetes and subjects (n = 170) who had a projected >50% risk for type 1 diabetes in 5 years were followed until clinical diabetes onset or the end of the study as part of the Diabetes Prevention Trial–Type 1. We assessed insulin secretion with the first-phase insulin response (FPIR) and insulin resistance with homeostasis model assessment of insulin resistance (HOMA-IR) from an intravenous glucose tolerance test. The median follow-up was 4.3 years for moderate-risk subjects and 3.7 years for high-risk subjects. RESULTS—During the follow-up period, 53 subjects in the moderate-risk group and 70 subjects in the high-risk group developed type 1 diabetes. After adjustments for confounders using multivariate analysis, HOMA-IR and the FPIR–to–HOMA-IR ratio were significantly associated with type 1 diabetes in both risk groups. In the moderate-risk population, the hazard ratio (HR) of HOMA-IR was 2.70 (95% CI 1.45–5.06) and the HR of FPIR-to-HOMA-IR was 0.32 (95% CI 0.18–0.57). In the high-risk population, the HR of HOMA-IR was 1.83 (95% CI 1.19–2.82) and the HR of FPIR–to–HOMA-IR was 0.56 (95% CI 0.40–0.78). CONCLUSIONS—There is clear evidence of the association between insulin resistance and progression to type 1 diabetes. The combination of FPIR and HOMA-IR could be used as a better metabolic indicator for type 1 diabetes risk for prediction and suggests possible intervention strategies for diabetes prevention.
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