Diabetes & Metabolism Journal

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Impact of Remnant Cholesterol on the Risk for End-Stage Renal Disease in Type 2 Diabetes Mellitus: A Nationwide Population-Based Cohort Study (Diabetes Metab J 2025;49:1106-15): Eun Roh, Ji Hye Heo, Kyung-Do Han, Jun Goo Kang; Diabetes Metab J. 2026;50(1):203-204. Published online January 1, 2026; DOI: https://doi.org/10.4093/dmj.2025.1052

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Review

Lifestyle and Behavioral Interventions
Optimizing Physical Activity Strategies for Older Adults with Diabetes: Hyeon-Jin Yu, Doyoun Hong, Kyuho Kim, Ji Hye Heo, Dong-Hyeok Cho, Yoshitaka Hashimoto, Jae-Seung Yun; Diabetes Metab J. 2025;49(6):1178-1197. Published online November 1, 2025; DOI: https://doi.org/10.4093/dmj.2025.0967

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The increasing prevalence of diabetes among older adults has emerged as a major socioeconomic burden. This population is highly heterogeneous, ranging from functionally independent to severely impaired individuals, making it difficult to establish standardized recommendations. Physical activity (PA) is a cornerstone of diabetes management; however, current exercise guidelines do not adequately address the wide spectrum of functional capacities observed in older adults. For those with physical limitations, relatively simple activities such as walking, breaking up sedentary time, incorporating movement into daily routines, and aquatic exercise have been proposed, yet supporting evidence remains limited. This review summarizes the pathophysiologic mechanisms of metabolic and functional changes associated with aging and diabetes—including sarcopenia, altered body composition, and cardiovascular decline—and comprehensively discusses the benefits and precautions of various exercise modalities, tailored recommendations according to diabetes-related complications, and key clinical considerations. We further classified older adults with diabetes into three functional levels, individuals in good health, those with some comorbidities or mild disabilities, and those with high comorbidities and/or functional impairment, and proposed corresponding physical activity strategies for each level. Finally, we highlight practical and feasible approaches, including walking, interrupting sedentary behavior, daily functional movements, and aquatic exercise, to enhance clinical applicability for individuals with reduced physical capacity. These tailored, function-based strategies may help older adults with diabetes achieve safer, more effective, and sustainable improvements in glycemic control and overall health.

Citations

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Predictors of Adherence to Physical Activity Among Adults with Diabetes
Amil Kusain Tan, Ajatshatru Pathak, Shiela M. Strauss
The Journal for Nurse Practitioners.2026; 22(6): 105778. CrossRef

Original Articles

Complications
Impact of Remnant Cholesterol on the Risk for End-Stage Renal Disease in Type 2 Diabetes Mellitus: A Nationwide Population-Based Cohort Study: Eun Roh, Ji Hye Heo, Han Na Jung, Kyung-Do Han, Jun Goo Kang, Seong Jin Lee, Sung-Hee Ihm; Diabetes Metab J. 2025;49(5):1106-1115. Published online May 21, 2025; DOI: https://doi.org/10.4093/dmj.2024.0406

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Background
Remnant cholesterol (remnant-C) has been linked to the risk of various vascular diseases, but the association between remnant-C and end-stage renal disease (ESRD) in patients with type 2 diabetes mellitus (T2DM) remains unclear.
Methods
Using a nationwide cohort, a total of 2,537,149 patients with T2DM without ESRD, who had participated in the national health screening in 2009, were enrolled and followed up until 2020. Low-density lipoprotein cholesterol (LDL-C) levels were assessed by the Martin-Hopkins method, and remnant-C was calculated as total cholesterol–LDL-C–high-density lipoprotein cholesterol.
Results
During a median follow-up period of 10.3 years, 26,246 patients with T2DM (1.03%) developed ESRD. Participants in the upper quartile of remnant-C had a higher risk of ESRD, with hazard ratios of 1.12 (95% confidence interval [CI], 1.08 to 1.17), 1.20 (95% CI, 1.15 to 1.24), and 1.33 (95% CI, 1.26 to 1.41) in the second, third, and fourth quartile, compared with the lowest quartile, in multivariable-adjusted analyses. The positive association between remnant-C and ESRD remained consistent, irrespective of age, sex, presence of pre-existing comorbidities, and use of anti-dyslipidemic medications. The increased risk of ESRD was more pronounced in high-risk subgroups, including those with hypertension, chronic kidney disease, obesity, and a longer duration of diabetes.
Conclusion
These findings suggest that remnant-C profiles in T2DM have a predictive role for future progression of ESRD, independent of traditional risk factors for renal dysfunction.

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Impact of Remnant Cholesterol on the Risk for End-Stage Renal Disease in Type 2 Diabetes Mellitus: A Nationwide Population-Based Cohort Study (Diabetes Metab J 2025;49:1106-15)
Jun Hwa Hong
Diabetes & Metabolism Journal.2026; 50(1): 190. CrossRef
A Narrative Review of Remnant Cholesterol as an Independent Atherogenic Lipoprotein in Type 2 Diabetes: Pathophysiology and Clinical Implications
Ramdhani Natsir, Eli Halimah, Ajeng Diantini, Jutti Levita
Therapeutics and Clinical Risk Management.2026; Volume 22: 1. CrossRef

Drug/Regimen
Pioglitazone as Add-on Therapy in Patients with Type 2 Diabetes Mellitus Inadequately Controlled with Dapagliflozin and Metformin: Double-Blind, Randomized, Placebo-Controlled Trial: Ji Hye Heo, Kyung Ah Han, Jun Hwa Hong, Hyun-Ae Seo, Eun-Gyoung Hong, Jae Myung Yu, Hye Seung Jung, Bong-Soo Cha; Diabetes Metab J. 2024;48(5):937-948. Published online February 2, 2024; DOI: https://doi.org/10.4093/dmj.2023.0314

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Background
This study assessed the efficacy and safety of triple therapy with pioglitazone 15 mg add-on versus placebo in patients with type 2 diabetes mellitus (T2DM) inadequately controlled with metformin and dapagliflozin.
Methods
In this multicenter, double-blind, randomized, phase 3 study, patients with T2DM with an inadequate response to treatment with metformin (≥1,000 mg/day) plus dapagliflozin (10 mg/day) were randomized to receive additional pioglitazone 15 mg/day (n=125) or placebo (n=125) for 24 weeks. The primary endpoint was the change in glycosylated hemoglobin (HbA1c) levels from baseline to week 24 (ClinicalTrials.gov identifier: NCT05101135).
Results
At week 24, the adjusted mean change from baseline in HbA1c level compared with placebo was significantly greater with pioglitazone treatment (–0.47%; 95% confidence interval, –0.61 to –0.33; P<0.0001). A greater proportion of patients achieved HbA1c <7% or <6.5% at week 24 with pioglitazone compared to placebo as add-on to 10 mg dapagliflozin and metformin (56.8% vs. 28% for HbA1c <7%, and 23.2% vs. 9.6% for HbA1c <6.5%; P<0.0001 for all). The addition of pioglitazone also significantly improved triglyceride, highdensity lipoprotein cholesterol levels, and homeostatic model assessment of insulin resistance levels, while placebo did not. The incidence of treatment-emergent adverse events was similar between the groups, and the incidence of fluid retention-related side effects by pioglitazone was low (1.5%).
Conclusion
Triple therapy with the addition of 15 mg/day of pioglitazone to dapagliflozin plus metformin was well tolerated and produced significant improvements in HbA1c in patients with T2DM inadequately controlled with dapagliflozin plus metformin.

Citations

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Da Hea Seo, Kyung Wan Min, Ho Sang Sohn, Sang Yong Kim, In‐Kyung Jeong, Cheol‐Young Park, Kun‐Ho Yoon, So Hun Kim, Bong‐Soo Cha
Diabetes, Obesity and Metabolism.2026; 28(1): 728. CrossRef
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Awadhesh Kumar Singh, Krishna G Seshadri, A G Unnikrishnan, Jothydev Kesavadev, Sanjay Kalra, Shashank R Joshi, Kaushik Pandit, Rakesh K Sahay, Vijay K Panikar, Ambrish Mithal, Smriti Gadia, Thamburaj Anthuvan
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Diabetes & Metabolism Journal.2026; 50(2): 320. CrossRef
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