Comparison of Data-Driven Phenotyping Systems for Metabolic Dysfunction-Associated Steatotic Liver Disease: Implications for Treatment Response
5 affiliations
- 1Department of Gastroenterology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
- 2Department of Gastroenterology, Guangzhou University of Traditional Chinese Medicine Affiliated Foshan Hospital of Traditional Chinese Medicine, Foshan, China
- 3Department of Nutrition, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
- 4Department of Radiology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
- 5Department of Ultrasound, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
Abstract
Background: Although emerging classification systems address the pathophysiological heterogeneity of metabolic dysfunction-associated steatotic liver disease (MASLD), the implications of these subtypes for treatment responses remain unclear. We systematically evaluated three phenotyping frameworks for stratifying responses to lifestyle management.
Methods: This prospective observational cohort study included 618 patients with MASLD who received 48 weeks of guideline-based lifestyle management. The classification systems assessed were metabolic clusters—mild obesity/dyslipidemia-associated MASLD (MODM), age-related MASLD (AM), severe insulin resistance-associated MASLD, high lipoprotein(a)-associated MASLD (HLPAM), and severe mixed hyperlipidemia-associated MASLD (SMHLM); hepatic and cardiometabolic traits (control, liver-specific, and cardiometabolic); and biochemical patterns (hepatocellular, mixed, and cholestatic). The primary endpoints were responses in magnetic resonance imaging-derived proton density fat fraction (MRI-PDFF) (≥30% relative liver fat reduction), alanine aminotransferase (ALT) (≥17 IU/L decrease), and liver stiffness measurements (LSM) (≥1-stage improvement in the LSM-defined fibrosis stage).
Results: Metabolic clusters demonstrated significantly greater temporal stability than the hepatic and cardiometabolic trait and biochemical pattern systems (62.8% vs. 56.6% vs. 53.4%, P=0.003). The HLPAM cluster demonstrated an attenuated MRI-PDFF response (odds ratio [OR], 0.35; 95% confidence interval [CI], 0.15 to 0.79), while the AM cluster showed a lower ALT response (OR, 0.33; 95% CI, 0.18 to 0.62), and the MODM cluster displayed a superior LSM response compared to the others (all P<0.05). Moreover, the liver-specific cluster showed better MRI-PDFF, ALT, and LSM responses than the control cluster. However, biochemical patterns selectively stratified ALT responses, with the hepatocellular pattern demonstrating a greater response than the mixed and cholestatic patterns.
Conclusion: Metabolic cluster-based MASLD subtypes exhibited differential responses to lifestyle management, supporting the integration of metabolic subtyping into clinical algorithms to optimize management.
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BibTeX
@article{luo2026comparison,
title = {{Comparison of Data-Driven Phenotyping Systems for Metabolic Dysfunction-Associated Steatotic Liver Disease: Implications for Treatment Response}},
author = {Ling Luo and Congxiang Shao and Tingfeng Wu and Long Teng and Jiaming Lai and Shuyu Zhuo and Zhi Dong and Wei Wang and Junzhao Ye and Bihui Zhong},
journal = {Journal of Obesity \& Metabolic Syndrome},
year = {2026},
month = oct,
doi = {10.7570/jomes25076},
url = {https://doi.org/10.7570/jomes25076},
note = {CC BY-NC 4.0},
}
RIS
TY - JOUR
TI - Comparison of Data-Driven Phenotyping Systems for Metabolic Dysfunction-Associated Steatotic Liver Disease: Implications for Treatment Response
AU - Ling Luo
AU - Congxiang Shao
AU - Tingfeng Wu
AU - Long Teng
AU - Jiaming Lai
AU - Shuyu Zhuo
AU - Zhi Dong
AU - Wei Wang
AU - Junzhao Ye
AU - Bihui Zhong
PY - 2026
DA - 2026/10/23
JO - Journal of Obesity & Metabolic Syndrome
DO - 10.7570/jomes25076
UR - https://doi.org/10.7570/jomes25076
AB - Background: Although emerging classification systems address the pathophysiological heterogeneity of metabolic dysfunction-associated steatotic liver disease (MASLD), the implications of these subtypes for treatment responses remain unclear. We systematically evaluated three phenotyping frameworks for stratifying responses to lifestyle management. Methods: This prospective observational cohort study included 618 patients with MASLD who received 48 weeks of guideline-based lifestyle management. The classification systems assessed were metabolic clusters—mild obesity/dyslipidemia-associated MASLD (MODM), age-related MASLD (AM), severe insulin resistance-associated MASLD, high lipoprotein(a)-associated MASLD (HLPAM), and severe mixed hyperlipidemia-associated MASLD (SMHLM); hepatic and cardiometabolic traits (control, liver-specific, and cardiometabolic); and biochemical patterns (hepatocellular, mixed, and cholestatic). The primary endpoints were responses in magnetic resonance imaging-derived proton density fat fraction (MRI-PDFF) (≥30% relative liver fat reduction), alanine aminotransferase (ALT) (≥17 IU/L decrease), and liver stiffness measurements (LSM) (≥1-stage improvement in the LSM-defined fibrosis stage). Results: Metabolic clusters demonstrated significantly greater temporal stability than the hepatic and cardiometabolic trait and biochemical pattern systems (62.8% vs. 56.6% vs. 53.4%, P=0.003). The HLPAM cluster demonstrated an attenuated MRI-PDFF response (odds ratio [OR], 0.35; 95% confidence interval [CI], 0.15 to 0.79), while the AM cluster showed a lower ALT response (OR, 0.33; 95% CI, 0.18 to 0.62), and the MODM cluster displayed a superior LSM response compared to the others (all P<0.05). Moreover, the liver-specific cluster showed better MRI-PDFF, ALT, and LSM responses than the control cluster. However, biochemical patterns selectively stratified ALT responses, with the hepatocellular pattern demonstrating a greater response than the mixed and cholestatic patterns. Conclusion: Metabolic cluster-based MASLD subtypes exhibited differential responses to lifestyle management, supporting the integration of metabolic subtyping into clinical algorithms to optimize management.
SN - 2508-6235
SN - 2508-7576
ER -