Background. Endothelial dysfunction and increased inflammation are precursors of cardiovascular disease in type 1 diabetes (T1D) and occur even in adolescents with T1D. The goal of this study was to determine the relationship of endothelial dysfunction to various measures of glycemia. Research Design and Methods. Forearm blood flow (FBF, venous occlusion plethysmography) was measured before and...

OBJECTIVE To determine the individual persistence of the relationship between mean sensor glucose (MG) concentrations and hemoglobin A(1c) (A1C) from the Juvenile Diabetes Research Foundation Continuous Glucose Monitoring (CGM) Randomized Trial. RESEARCH DESIGN AND METHODS MG was calculated using CGM data for 3 months before A1C measurements at 3, 6, 9, and 12 months for the CGM group and at ...

We evaluated three newly introduced systems for automated determinations of hemoglobin (Hb) A1c, which allow the processing of large amounts of samples in a routine clinical laboratory. We compared these methods--the Variant HPLC, the Hi-Auto A1c analyzer system, and the Roche immunoassay--with the Diamat HPLC system. All showed good precision and good concordance with the Diamat HPLC. The refe...

BACKGROUND We wanted to determine whether a simple tool characterizing readiness to change among patients before participating in a diabetes educational intervention successfully screens for patients who will achieve satisfactory clinical improvement. METHODS Fifty patients referred to a diabetes educational center with hemoglobin A1c levels of more than 9.0% were asked four questions before ...

Measurement of glycohemoglobin (GHb) is widely used in patients with diabetes mellitus as a monitor of longterm glycemic control (1–3). In addition, prospective randomized clinical trials, most notably the Diabetes Control and Complications Trial (DCCT) and the United Kingdom Prospective Diabetes Study (UKPDS), have demonstrated that GHb is a measure of the risk for the development of diabetes ...

OBJECTIVE The optimal target for glycemic control has not been established in diabetic dialysis patients. RESEARCH DESIGN AND METHODS To address this question, the national database of a large dialysis organization (DaVita) was analyzed via time-dependent survival models with repeated measures. RESULTS Of 82,933 patients undergoing maintenance hemodialysis (MHD) in DaVita outpatient clinics...

OBJECTIVE This updated meta-analysis determines the effect of dipeptidyl peptidase-4 inhibitors on glycemic and tolerability outcomes in patients with type 2 diabetes mellitus and chronic kidney disease with glomerular filtration rate of ⩽60 mL/min or on dialysis. METHODS In all, 14 citations were identified from multiple databases. Qualitative assessments and quantitative analyses were perfo...

Hemoglobin A1c, the most abundant minor hemoglobin component in human erythrocytes, is formed by the condensation of glucose with the N-terminal amino groups of the beta-chains of Hb A. The biosynthesis of this glycosylated hemoglobin was studied in vitro by incubating suspensions of reticulocytes and bone marrow cells with [3H]leucine or 59Fe-bound transferrin. In all experiments, the specific...