Journal of Traditional Chinese Medicine ›› 2026, Vol. 46 ›› Issue (2): 480-489.DOI: 10.19852/j.cnki.jtcm.20250821.001

• Original Articles • Previous Articles     Next Articles

Tongue color tones in Traditional Chinese Medicine correlate with liver histology of metabolic dysfunction-associated steatohepatitis in morbidly obese patients undergoing metabolic and bariatric surgery

CEN Zhikang1, HUANG Bing1, ZHANG Pengfei1, LIU Dongyang1, MO Yanxin1, ZHU Fei1, FAN Mengqi2, NI Zheng1, XU Ying3, LIU Wei4, WU Shuduo5, XU Aimin6,7, SONG Erfei2,8(), YE Dewei1()   

  1. 1 Key Laboratory of Metabolic Phenotyping in Model Animals, Guangdong Pharmaceutical University, Guangzhou 510006, China
    2 Institute of Metabolic Science, Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou 510006, China
    3 School of Chinese Medicine, Guangdong Pharmaceutical University, Guangzhou 510006, China
    4 the First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou 510400, China
    5 Division of Hepatology, the Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou 510120, China
    6 State Key Laboratory of Pharmaceutical Biotechnology, the University of Hong Kong, Hong Kong, China
    7 Department of Medicine, The University of Hong Kong, Hong Kong 999077, China
    8 Department of Bariatric Surgery, the First Affiliated Hospital of Jinan University, Guangzhou 510630, China
  • Received:2025-03-31 Accepted:2025-06-21 Online:2026-04-15 Published:2025-08-21
  • Contact: YE Dewei, Key Laboratory of Metabolic Phenotyping in Model Animals, Guangdong Pharmaceutical University, Guangzhou 510006, China. dewei.ye@foxmail.com; Telephone: +86-20-39353115; SONG Erfei, Department of Bariatric Surgery, the First Affiliated Hospital of Jinan University, Guangzhou 510630, China. songerfei@jnu.edu.cn; Telephone: +86-20-38688610
  • Supported by:
    Immunometabolism Mechanisms Underlying the Development of Chronic Diseases and Therapeutic Benefits of Traditional Chinese Medicine(2024ZD0521005);Functional Investigation of Proteinase 3 in the Development of Diabetic Kidney Diseases and Mechanistic Insights into Therapeutic Benefits of Traditional Chinese Medicine Formula(82374171);Exploration of Pathogenic Role of Neutrophil Extracellular Traps in Increased Susceptibility to Drug-induced Liver Injury under Co-existing Metabolic Dysfunction-associated Steatohepatitis(2024A1515012945);Basic and Translational Investigation of Immunometabolism in Metabolic Diseases(SL2023A04-J01031);Key Laboratory of Model Animal Phenotyping and Basic Research in Metabolic Diseases(2018KSYS003)

Abstract:

OBJECTIVE: To determine the association of tongue color tones in morbidly obese patients with various liver histological characteristics of metabolic dysfunction-associated steatohepatitis (MASH), which is the advanced subtype of metabolic dysfunction-associated steatotic liver disease (MASLD).

METHODS: A total of 60 morbidly obese adults who underwent metabolic and bariatric surgery were recruited. Liver biopsies were available for all participants and were subjected to histological assessment. The association of tongue color tones with histological parameters in the liver was investigated.

RESULTS: MASH-related histological characteristics in the liver were closely associated with color features in distinct zones of the tongue. The values for color channels red (R), green (G), and blue (B) were increased in subjects with histological features of steatosis. Likewise, the histological characteristic of lobular inflammation was associated with distinct panels of RGB values for tongue edge zones and tongue coating. RGB values in the tongue exhibited a step-wise increase in line with grading score of liver histology. In contrast, tooth-sign on the tongue was dissociated with histological features of MASH.

CONCLUSION: Our clinicopathological study demonstrated a close association of color tones in the tongue with MASH-related histological characteristics in the liver of morbidly obese patients, supporting the application of tongue inspection in Traditional Chinese Medicine as a promising approach to non-invasive diagnosis of MASLD/MASH.

Key words: tongue inspection, obesity, liver histology, steatotic liver disease, tongue image

Cite this article

CEN Zhikang, HUANG Bing, ZHANG Pengfei, LIU Dongyang, MO Yanxin, ZHU Fei, FAN Mengqi, NI Zheng, XU Ying, LIU Wei, WU Shuduo, XU Aimin, SONG Erfei, YE Dewei. Tongue color tones in Traditional Chinese Medicine correlate with liver histology of metabolic dysfunction-associated steatohepatitis in morbidly obese patients undergoing metabolic and bariatric surgery[J]. Journal of Traditional Chinese Medicine, 2026, 46(2): 480-489.