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Original Articles
- Triglyceride-glucose index predicts future metabolic syndrome in an adult population, Korea: a prospective cohort study
- Min-Su Park
- Ann Clin Nutr Metab 2024;16(3):168-172. Published online December 1, 2024
- DOI: https://doi.org/10.15747/ACNM.2024.16.3.168
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Abstract
PDF - Purpose: The triglyceride-glucose (TyG) index has been proposed as a reliable surrogate marker for insulin resistance. This study aimed to assess the utility of the TyG index in predicting the future presence of metabolic syndrome (MetS) in an adult population.
Methods: A total of 3,241 adults aged 40–70 years were included in this cross-sectional study. MetS was diagnosed based on the modified National Cholesterol Education Program Adult Treatment Panel III criteria, which requires the presence of at least three of the following components: abdominal obesity, elevated blood pressure, dysglycemia, hypertriglyceridemia, and low high-density lipoprotein cholesterol.
Results: In comparison to the homeostasis model assessment of insulin resistance (HOMA-IR), the TyG index exhibited superior diagnostic performance, with a higher area under the receiver operating characteristic curve of 0.854 vs. 0.702 for HOMA-IR. The 95% confidence interval for the TyG index was narrower, reflecting a more consistent predictive ability. Sensitivity for the TyG index was 79.7%, while specificity was 79.3%, compared to HOMA-IR, which showed a sensitivity of 52.7% and specificity of 78.3%.
Conclusion: The TyG index is a highly effective and robust tool for identifying individuals at risk for MetS, demonstrating superior sensitivity and predictive accuracy over HOMA-IR. This index could be a valuable clinical marker for early detection of MetS, aiding in the prevention and management of associated metabolic disorders.
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- The Evaluation of Preoperative Oral Carbohydrate-Rich Solution Effects on Insulin Resistance in Patients undergoing Colectomy
- Cherry Ann Sio, Kyuwhan Jung, Seong-Bum Kang, Duk-Woo Kim, Heung-Kwon Oh, Miok Yoon
- J Clin Nutr 2015;7(2):62-67. Published online August 31, 2015
- DOI: https://doi.org/10.15747/jcn.2015.7.2.62
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Abstract
PDF
Purpose:
Reducing preoperative fasting time showed positive effects in several studies, and current guidelines suggest use of a preoperative oral carbohydrate-rich solution before elective surgeries. For elective colectomy procedures, some surgeons favor two-day bowel preparation with diet restriction and administration of laxatives. Aside from patients experiencing the discomfort of nil per os (NPO), there are reported benefits regarding intake of liquids until at least two hours prior to surgery, including decrease in insulin resistance, without additional postoperative surgical complications. The aim of this study is to show the benefits of administration of oral rehydration solution (ORS) two hours prior to surgery for patients undergoing elective colectomy, particularly postoperative insulin resistance.
Methods:
This is a randomized controlled trial. All patients undergoing elective colectomy were included and randomized to the control arm or treatment arm. The control arm consisted of the standard bowel preparation and one day of NPO, while the treatment arm consisted of the standard bowel preparation and allowing intake of carbohydrate-rich ORS until 2 hours before surgery. The insulin, glucose, cortisol, and triglyceride levels were determined immediately after induction, 6 hours, 24 hours, and 48 hours post-op, and compared. The homeostatic model assessment-insulin resistance, insulin, glucose, cortisol, and triglyceride levels were determined and compared between the two groups. Anxiety and postoperative complications were monitored and assessed as well.
Results:
There was less insulin resistance in patients who received ORS 2 hours prior to surgery. Insulin, glucose, cortisol, and triglyceride levels were lower in the treatment group compared to the control group. Taking ORS 1 day prior and until 2 hours before surgery decreased anxiety and discomfort, and alleviated hunger.
Conclusion:
Regarding complications, there was no difference in the incidence of aspiration and postoperative complications. There were fewer wound complications and incidence of paralytic ileus in the treatment group.
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