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Original Articles
Association of Abdominal Myosteatosis and Visceral Fat Obesity with Arterial Stiffness
Min Jung Lee, Hong-Kyu Kim, Eun Hee Kim, Sung Jin Bae, Hyo-Jung Nam, Sang Hoon Lee, Chang Hee Jung, Woo Je Lee
Received October 22, 2025  Accepted January 12, 2026  Published online April 8, 2026  
DOI: https://doi.org/10.3803/EnM.2025.2734    [Epub ahead of print]
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Background
Arterial stiffness with aging predicts cardiovascular diseases (CVDs) and target organ damage. While sarcopenia has been linked to arterial stiffness, the association of myosteatosis and visceral adiposity with arterial stiffness remains underexplored. As age-related fat redistribution, including myosteatosis and visceral obesity, often precedes the overt sarcopenia, their early evaluation may be beneficial in preventing arterial stiffness. Therefore, this cross-sectional study aimed to assess whether myosteatosis and visceral obesity are associated with increased arterial stiffness.
Methods
A total of 6,004 subjects without CVD who underwent abdominal computed tomography and brachial-ankle pulse wave velocity (baPWV) between 2012 and 2013 during health examinations were included. Visceral fat area and total abdominal muscle area (TAMA) were measured at the L3 vertebral level. Muscle quality was assessed using the normal attenuation muscle area (NAMA)/TAMA index, where a lower value indicates a reduced proportion of healthy muscle (NAMA) and a higher presence of myosteatosis.
Results
After adjusting for multiple cardiovascular risk factors, including myosteatosis, visceral obesity was significantly associated with elevated baPWV in men (odds ratio [OR]=1.32; 95% confidence interval [CI]=1.10 to 1.60; P=0.004). In contrast, in women, myosteatosis was significantly associated with elevated baPWV in a fully adjusted model that included visceral obesity (OR=3.26; 95% CI=1.13 to 9.44; P=0.029).
Conclusion
Ectopic fat infiltration, including visceral obesity and myosteatosis, was significantly associated with increased arterial stiffness. Notably, visceral obesity was significantly associated with elevated baPWV in men, while myosteatosis was significant in women after adjustment.
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Mineral, bone & muscle
Muscle Loss Driven by Extracellular Signal-Regulated Kinase Suppression via β-Adrenergic Activation in High-Normal Catecholamine Status
Jieun Lee, Ju Yeon Kwak, Ho Yeop Lee, Ji Sun Moon, Hyo Ju Jang, Ha Thi Nga, Thi Linh Nguyen, Alfin Mohammad Abdillah, Junglyun Kim, Sihwan Kim, Yong Ryoul Yang, Jeong Eun Lee, Hyon-Seung Yi
Endocrinol Metab. 2026;41(2):319-332.   Published online April 6, 2026
DOI: https://doi.org/10.3803/EnM.2025.2527
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Background
Catecholamines play a crucial role in muscle biogenesis, but their persistent elevation is linked to muscle wasting, which is poorly understood. This study aimed to investigate the association between catecholamine levels and age-related muscle loss.
Methods
This retrospective study evaluated the plasma levels of two catecholamines, metanephrine and normetanephrine, and the clinical characteristics of 830 patients with adrenal incidentaloma on computed tomography (CT). Cross-sectional CT data at the L3 lumbar vertebrae were used to measure muscle areas. In vitro studies on C2C12 myotubes were conducted to examine β-adrenergic receptor signaling pathways and their role in myogenesis.
Results
Men had significantly higher mean metanephrine levels of 0.17 nmol/L and normetanephrine levels of 0.63 nmol/L than women (P<0.05). Total abdominal muscle area was negatively correlated with catecholamine levels in both men and women, with the strongest negative correlation between normetanephrine levels and total abdominal muscle area in men (r=–0.31, P<0.001). Similarly, the strongest negative correlation between visceral fat area and metanephrine was observed in men (r=–0.25, P=0.004). Clenbuterol, a β-adrenergic receptor agonist, inhibited myogenesis, including myotube formation by extracellular signal-regulated kinase (ERK) suppression in C2C12 myoblasts. Conversely, β-blockers increased myogenesis via increasing ERK phosphorylation in C2C12 cells. These findings suggest that β-adrenergic modulation influences skeletal muscle differentiation, with ERK phosphorylation.
Conclusion
Catecholamine levels are associated with age, sex, muscle mass, and fat mass. Monitoring catecholamine levels, particularly in older men and in individuals with reduced muscle mass, may help manage age-related muscle loss and lead to individualized treatment strategies.
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Miscellaneous
Differences in Type 2 Fiber Composition in the Vastus Lateralis and Gluteus Maximus of Patients with Hip Fractures
Jingwen Tian, Minchul Song, Kyu Jeong Cho, Ho Yeop Lee, Sang Hyeon Ju, Jung Ryul Lim, Ha Thi Nga, Thi Linh Nguyen, Ji Sun Moon, Hyo Ju Jang, Jung-Mo Hwang, Hyon-Seung Yi
Endocrinol Metab. 2024;39(3):521-530.   Published online June 11, 2024
DOI: https://doi.org/10.3803/EnM.2024.1935
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  • 102 Download
  • 2 Web of Science
  • 3 Crossref
AbstractAbstract PDFSupplementary MaterialPubReader   ePub   
Background
Aging leads to sarcopenia, which is characterized by reduced muscle mass and strength. Many factors, including altered muscle protein turnover, diminished neuromuscular function, hormonal changes, systemic inflammation, and the structure and composition of muscle fibers, play a crucial role in age-related muscle decline. This study explored differences in muscle fiber types contributing to overall muscle function decline in aging, focusing on individuals with hip fractures from falls.
Methods
A pilot study at Chungnam National University Hospital collected muscle biopsies from hip fracture patients aged 20 to 80 undergoing surgical treatment. Muscle biopsies from the vastus lateralis and gluteus maximus were obtained during hip arthroplasty or internal fixation. Handgrip strength, calf and thigh circumference, and bone mineral density were evaluated in individuals with hip fractures from falls. We analyzed the relationships between each clinical characteristic and muscle fiber type.
Results
In total, 26 participants (mean age 67.9 years, 69.2% male) were included in this study. The prevalence of sarcopenia was 53.8%, and that of femoral and lumbar osteoporosis was 19.2% and 11.5%, respectively. Vastus lateralis analysis revealed an age-related decrease in type IIx fibers, a higher proportion of type IIa fibers in women, and an association between handgrip strength and type IIx fibers in men. The gluteus maximus showed no significant correlations with clinical parameters.
Conclusion
This study identified complex associations between age, sex, handgrip strength, and muscle fiber composition in hip fracture patients, offering insights crucial for targeted interventions combating age-related muscle decline and improving musculoskeletal health.

Citations

Citations to this article as recorded by  
  • Muscle Loss Driven by Extracellular Signal-Regulated Kinase Suppression via β-Adrenergic Activation in High-Normal Catecholamine Status
    Jieun Lee, Ju Yeon Kwak, Ho Yeop Lee, Ji Sun Moon, Hyo Ju Jang, Ha Thi Nga, Thi Linh Nguyen, Alfin Mohammad Abdillah, Junglyun Kim, Sihwan Kim, Yong Ryoul Yang, Jeong Eun Lee, Hyon-Seung Yi
    Endocrinology and Metabolism.2026; 41(2): 319.     CrossRef
  • Tourniquet Use During Anterior Cruciate Ligament Reconstruction Is Associated With Postoperative Quadriceps Atrophy and Pain but No Negative Effects in the Long Term: A Systematic Review
    Caleb V. Hayes, Saad M. Ibrahim, Anna E. Crawford, James R. Jones, Mathew D. Hargreaves, Clay A. Rahaman, Eugene W. Brabston, Thomas B. Evely, Aaron J. Casp, Kevin E. Wilk, Amit M. Momaya
    Arthroscopy, Sports Medicine, and Rehabilitation.2025;[Epub]     CrossRef
  • Volume and quality of the gluteal muscles are associated with early physical function after total hip arthroplasty
    Makoto Iwasa, Keisuke Uemura, Mazen Soufi, Yoshito Otake, Tomofumi Kinoshita, Tatsuhiko Kutsuna, Kazuma Takashima, Hidetoshi Hamada, Yoshinobu Sato, Nobuhiko Sugano, Seiji Okada, Masaki Takao
    International Journal of Computer Assisted Radiology and Surgery.2025; 20(4): 703.     CrossRef
Close layer
Mineral, Bone & Muscle
Comparison of Two DXA Systems, Hologic Horizon W and GE Lunar Prodigy, for Assessing Body Composition in Healthy Korean Adults
Seung Shin Park, Soo Lim, Hoyoun Kim, Kyoung Min Kim
Endocrinol Metab. 2021;36(6):1219-1231.   Published online December 16, 2021
DOI: https://doi.org/10.3803/EnM.2021.1274
  • 14,062 View
  • 236 Download
  • 22 Web of Science
  • 26 Crossref
AbstractAbstract PDFSupplementary MaterialPubReader   ePub   
Background
Dual-energy X-ray absorptiometry (DXA) is the most widely used method for evaluating muscle masses. The aim of this study was to investigate the agreement between muscle mass values assessed by two different DXA systems.
Methods
Forty healthy participants (20 men, 20 women; age range, 23 to 71 years) were enrolled. Total and regional body compositional values for fat and lean masses were measured consecutively with two DXA machines, Hologic Horizon and GE Lunar Prodigy. Appendicular lean mass (ALM) was calculated as the sum of the lean mass of four limbs.
Results
In both sexes, the ALM values measured by the GE Lunar Prodigy (24.8±4.3 kg in men, 15.8±2.9 kg in women) were significantly higher than those assessed by Hologic Horizon (23.0±4.0 kg in men, 14.8±3.2 kg in women). Furthermore, BMI values or body fat (%), either extremely higher or lower levels, contributed greater differences between two systems. Bland-Altman analyses revealed a significant bias between ALM values assessed by the two systems. Linear regression analyses were performed to develop equations to adjust for systematic differences (men: Horizon ALM [kg]=0.915×Lunar Prodigy ALM [kg]+0.322, R2=0.956; women: Horizon ALM [kg]=1.066×Lunar Prodigy ALM [kg]–2.064, R2=0.952).
Conclusion
Although measurements of body composition including muscle mass by the two DXA systems correlated strongly, significant differences were observed. Calibration equations should enable mutual conversion between different DXA systems.

Citations

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  • Development and validation of a phase-sensitive bioelectrical equation for estimating skeletal muscle mass using DXA as reference
    Francesco Campa, Alessandro Sampieri, Gioi Spinello, Tatiana Moro, Antonio Paoli
    Nutrition, Metabolism and Cardiovascular Diseases.2026; 36(1): 104281.     CrossRef
  • Prevalence of low muscle mass and its association with orthostatic hypotension and related symptoms in Parkinson’s disease
    Seohee Choi, Ryul Kim, Soonwook Kwon, Jin-Sun Jun, Kyeongho Byun, Nyeonju Kang, Kiwon Park, Jee-Young Lee, Beomseok Jeon
    npj Parkinson's Disease.2026;[Epub]     CrossRef
  • Advancing sarcopenia assessment with wearable and app-based technology: a scoping review
    Ayush Mehra, Justo Perez, Jessica L. Krok-Schoen, Roberto M. Benzo, Colleen K. Spees, Shang-Jui Wang, Steven K. Clinton, Stefan A. Czerwinski, Brett S. Nickerson
    The Journal of nutrition, health and aging.2026; 30(5): 100824.     CrossRef
  • Methodological standards for body composition assessment—an expert-endorsed guide for research and clinical applications: bioimpedance, dual-energy X-ray absorptiometry, computerized tomography, and ultrasound methods
    Carla M Prado, M Cristina Gonzalez, Kristina Norman, Camila E Orsso, Rocco Barazzoni, Tommy Cederholm, Charlene Compher, Gordon L Jensen, Takashi Abe, Thiago Gonzalez Barbosa-Silva, Jonathan P Bennett, Owen T Carmichael, Carrie P Earthman, William J Evans
    The American Journal of Clinical Nutrition.2026; 123(5): 101283.     CrossRef
  • Artificial Neural Networks Models Fail to Accurately Estimate Fat and Lean Body Mass
    Irismar Gonçalves Almeida da Encarnação, Matheus Santos Cerqueira, Simon Lebech Cichosz, Cláudia Eliza Patrocínio de Oliveira, João Carlos Bouzas Marins, Osvaldo Costa Moreira
    JAND Global Reports.2026; 2: 100013.     CrossRef
  • Cross-Calibration of Bone Mineral Density and Body Composition between GE Lunar Prodigy and Hologic Horizon W Dual Energy X-Ray Absorptiometry Systems
    Sujin Kim, Guen Young Lee, Jun-Il Yoo, Sang-Wook Lee, Yong-Chan Ha
    Journal of Bone Metabolism.2026; 33(1): 84.     CrossRef
  • Longitudinal Deterioration in Nutritional Status Associated With Increased Risk of Sarcopenia in Community‐Dwelling Aged Adults: A Prospective Cohort Study
    Ho Jun Lim, Seung Shin Park, Mi Ji Kim, Hak Chul Jang, Sung Hye Kong, Chang Won Won
    Journal of Cachexia, Sarcopenia and Muscle.2026;[Epub]     CrossRef
  • The effects of high-intensity interval training versus continuous moderate-intensity exercise on body composition among older adults with HIV
    Grace L Kulik, Vitor H F Oliveira, Melissa P Wilson, Vincent Khuu, Catherine M Jankowski, Stephanie Dillon, Paul Cook, Samantha MaWhinney, Debashis Ghosh, Allison R Webel, Kristine M Erlandson, Gustavo Duque
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    Vinod Arora, Sushrut Singh, Jaya Benjamin, Varsha Shasthry, Satendra Pal Singh, Guresh Kumar, Shiv Kumar Sarin
    Hepatology International.2026;[Epub]     CrossRef
  • Does Lower-Limb Segmentation of DXA Matter in Sarcopenia?
    Sang Yoon Lee
    Journal of the American Medical Directors Association.2026; 27(8): 106363.     CrossRef
  • Development of an Algorithm to Predict Appendicular Lean Mass Index From Regional Spine and Hip Dxa Scans
    Krista Rossum, Mackenzie R. Alexiuk, Clara Bohm, William D. Leslie, Navdeep Tangri
    Journal of Clinical Densitometry.2025; 28(2): 101560.     CrossRef
  • Comparing digital anthropometrics from mobile applications to reference methods: a scoping review
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    Gabriël Eksteen, Tim Vanuytsel, Roman Vangoitsenhoven, Ann Mertens, Matthias Lannoo, Ellen De Leus, Bart Van der Schueren, Christophe Matthys
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    Nutrients.2025; 17(11): 1881.     CrossRef
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    Korean Journal of Health Promotion.2025; 25(2): 50.     CrossRef
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    Ivana R. Sequeira-Bisson, Louise W. Lu, Marta P. Silvestre, Lindsay D. Plank, Nikki Middleditch, Alejandra Acevedo-Fani, Amber Parry-Strong, Kieren G. Hollingsworth, Alexander Tups, Jennifer L. Miles-Chan, Jeremy D. Krebs, Meika Foster, Sally D. Poppitt
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    Colin Vendrami, Guillaume Gatineau, Elena Gonzalez Rodriguez, Olivier Lamy, Didier Hans, Enisa Shevroja
    JBMR Plus.2024;[Epub]     CrossRef
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    Navira Samad, Wei Ling Chiu, Hanh H Nguyen, Zhong X Lu, Margaret Zacharin, Peter R Ebeling, Helena Teede, David Scott, Frances Milat, Amanda J Vincent
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  • Total and regional appendicular skeletal muscle mass prediction from dual-energy X-ray absorptiometry body composition models
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  • Cross-Calibration of iDXA and pQCT Scanners at Rural and Urban Research Sites in The Gambia, West Africa
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  • Estimation of Absolute and Relative Body Fat Content Using Noninvasive Surrogates: Can DXA Be Bypassed?
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Close layer
Diabetes, Obesity and Metabolism
Differences in Abdominal Body Composition According to Glycemic Status: An Inverse Probability Treatment Weighting Analysis
Seungbong Han, Young-Jee Jeon, Gyung-Min Park, Tae Young Lee, Soon Eun Park, Gyeongseok Yu, Byung Ju Kang
Endocrinol Metab. 2021;36(4):855-864.   Published online August 11, 2021
DOI: https://doi.org/10.3803/EnM.2021.1086
  • 7,922 View
  • 144 Download
  • 2 Web of Science
  • 2 Crossref
AbstractAbstract PDFPubReader   ePub   
Background
Several studies have reported that abdominal fat and muscle changes occur in diabetic patients. However, there are few studies about such changes among prediabetic patients. In this study, we evaluated the differences in abdominal fat and muscles based on abdominopelvic computed tomography in prediabetic and diabetic subjects compared to normal subjects.
Methods
We performed a cross-sectional study using health examination data from March 2014 to June 2019 at Ulsan University Hospital and classified subjects into normal, prediabetic, and diabetic groups. We analyzed the body mass index corrected area of intra-abdominal components among the three groups using inverse probability treatment weighting (IPTW) analysis.
Results
Overall, 8,030 subjects were enrolled; 5,137 (64.0%), 2,364 (29.4%), and 529 (6.6%) subjects were included in the normal, prediabetic, and diabetic groups, respectively. After IPTW adjustment of baseline characteristics, there were significant differences in log visceral adipose tissue index (VATI; 1.22±0.64 cm2/[kg/m2] vs. 1.30±0.63 cm2/[kg/m2] vs. 1.47±0.64 cm2/[kg/m2], P<0.001) and low-attenuation muscle index (LAMI; 1.02±0.36 cm2/[kg/m2] vs. 1.03±0.36 cm2/[kg/m2] vs. 1.09±0.36 cm2/[kg/m2], P<0.001) among the normal, prediabetic, and diabetic groups. Prediabetic subjects had higher log VATI (estimated coefficient= 0.082, P<0.001), and diabetic subjects had higher log VATI (estimated coefficient=0.248, P<0.001) and LAMI (estimated coefficient=0.078, P<0.001) compared to normal subjects.
Conclusion
Considering that VATI and LAMI represented visceral fat and lipid-rich skeletal muscle volumes, respectively, visceral obesity was identified in both prediabetic and diabetic subjects compared to normal subjects in this study. However, intra-muscular fat infiltration was observed in diabetic subjects only.

Citations

Citations to this article as recorded by  
  • Quantitative CT histogram indices for abdominal muscles are associated with coronary artery disease severity
    G. Geng, Z. Li, T. Yuan, G.-M. Quan
    Clinical Radiology.2025; 83: 106840.     CrossRef
  • Testosterone is associated with abdominal body composition derived from computed tomography: a large cross sectional study
    Seungbong Han, Young-Jee Jeon, Tae Young Lee, Gyung-Min Park, Sungchan Park, Seong Cheol Kim
    Scientific Reports.2022;[Epub]     CrossRef
Close layer
Review Article
Miscellanenous
Cushing Syndrome Associated Myopathy: It Is Time for a Change
Martin Reincke
Endocrinol Metab. 2021;36(3):564-571.   Published online June 18, 2021
DOI: https://doi.org/10.3803/EnM.2021.1069
  • 16,188 View
  • 260 Download
  • 22 Web of Science
  • 22 Crossref
AbstractAbstract PDFPubReader   ePub   
Cushing syndrome is the result of excessive levels of glucocorticoids. Endogenous Cushing syndrome is rare with an incidence of two to three cases per million per year. Clinically, the presentation consists of a characteristic phenotype including skin symptoms and metabolic manifestations. A frequent co-morbidity with high impact on quality of life is Cushing syndrome associated myopathy. It characteristically affects the proximal myopathy, impairing stair climbing and straightening up. The pathophysiology is complex and involves protein degradation via the forkhead box O3 (FOXO3) pathway, intramuscular fat accumulation, and inactivity-associated muscle atrophy. Surgical remission of Cushing syndrome is the most important step for recovery of muscle function. Restoration depends on age, co-morbidities and postoperative insulin-like growth factor concentrations. At average, functionality remains impaired during the long-term compared to age and sex matched control persons. Growth hormone therapy in individuals with impaired growth hormone secretion could be an option but has not been proved in a randomized trial.

Citations

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  • The Link between Mitochondrial Dysfunction and Sarcopenia: An Update Focusing on the Role of Pyruvate Dehydrogenase Kinase 4
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