Ectopic fat in muscle and poor glycemic control are negatively associated with trabecular bone score in type 2 diabetes

Author(s)

Araujo, Iana Mizumukai de ; Salmon, Carlos Ernesto Garrido ; Paula, Francisco Jose Albuquerque de

• Document type: Journal article
• Source: Clinics; v. 79, p. 5-pg., 2024-07-10.

Abstract

Introduction: Type 2 Diabetes (T2D) is associated with fractures, despite preserved Bone Mineral Density (BMD). This study aimed to evaluate the relationship between BMD and trabecular bone score (TBS) with the reallocation of fat within muscle in individuals with eutrophy, obesity, and T2D. Methods: The subjects were divided into three groups: eutrophic controls paired by age and sex with the T2D group (n = 23), controls diagnosed with obesity paired by age, sex, and body mass index with the T2D group (n = 27), and the T2D group (n = 29). BMD and body fat percentage were determined using dual-energy X-Ray absorptiometry. TBS was determined using TBS iNsight software. Intra and extramyocellular lipids in the soleus were measured using proton magnetic resonance spectroscopy. Results: TBS was lower in the T2D group than in the other two groups. Glycated hemoglobin (A1c) was negatively associated with TBS. Body fat percentage was negatively associated with TBS and Total Hip (TH) BMD. TH BMD was positively associated with intramuscular lipids. A trend of negative association was observed between intramuscular lipids and TBS. Conclusion: This study showed for the first time that the reallocation of lipids within muscle has a negative association with TBS. Moreover, these results are consistent with previous studies showing a negative association between a parameter related to insulin resistance (intramuscular lipids) and TBS. (AU)

• FAPESP's process: 21/03152-2 - Interaction between fat, muscle, and bone tissues in anorexia nervosa
• Grantee: Iana Mizumukai de Araujo
• Support Opportunities: Scholarships in Brazil - Post-Doctoral
• FAPESP's process: 18/18071-5 - Hydroelectrolytic and energy homeostasis: from cellular metabolism to endocrine systems in different phases of development
• Grantee: Lucila Leico Kagohara Elias
• Support Opportunities: Research Projects - Thematic Grants