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Micronutrients in the Regulation of Skeletal Muscle Anabolism

A special issue of Nutrients (ISSN 2072-6643). This special issue belongs to the section "Micronutrients and Human Health".

Deadline for manuscript submissions: 25 April 2025 | Viewed by 1169

Special Issue Editor


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Guest Editor
School of Kinesiology and Health Science, York University, Toronto, ON M3J 1P3, Canada
Interests: nutrition; skeletal muscle; protein and amino acid metabolism; insulin resistance; mTORC1; protein synthesis; protein breakdown; cell signaling

Special Issue Information

Dear Colleagues,

The anabolism of skeletal muscle is regulated by several factors, including resistance exercise, anabolic hormones, and nutrition. The impact of macronutrients, especially proteins and amino acids, has been well studied. However, comparatively little is known about the effects of micronutrients on muscle anabolism. Micronutrients (vitamins and minerals) are essential nutrients; they are required for energy metabolism, blood vessel formation and integrity, and bone formation, amongst other functions. They perform these functions by serving as coenzymes/cofactors in diverse reactions, as antioxidants, as essential components of organelles such as the mitochondria, and as building blocks (for example, the role of iron in bone formation).

Several signaling pathways, including the PI3K/AKT and mTORC1 pathways, are critical in regulating muscle anabolism; however, whether and how micronutrients regulate the functions of these pathways in muscle anabolism has been minimally studied. The roles of these nutrients might be regulated by protein synthesis, proteolysis, and or myotube formation. We hope that this collection of articles will help to address this gap and provide insights into novel mechanisms and interventions for optimizing muscle growth and function, either for athletes or in the management of muscle wasting conditions.

Dr. Olasunkanmi A.J. Adegoke
Guest Editor

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Keywords

  • skeletal muscle
  • micronutrients
  • proteolysis
  • protein synthesis
  • minerals
  • vitamins
  • mTORC1

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Published Papers (1 paper)

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Research

8 pages, 230 KiB  
Article
Micronutrient Deficiency and Muscular Status in Inflammatory Bowel Disease
by Joonhee Han, Hyun Joo Song, Min Sook Kang, Hogyung Jun, Heung Up Kim, Ki Soo Kang and Donghyoun Lee
Nutrients 2024, 16(21), 3763; https://doi.org/10.3390/nu16213763 - 1 Nov 2024
Viewed by 913
Abstract
Micronutrient deficiencies are common in inflammatory bowel disease (IBD). The aim of this study was to evaluate micronutrient deficiencies and identify muscular status of patients with IBD. From June 2019 to October 2021, a total of 105 patients with IBD were enrolled prospectively. [...] Read more.
Micronutrient deficiencies are common in inflammatory bowel disease (IBD). The aim of this study was to evaluate micronutrient deficiencies and identify muscular status of patients with IBD. From June 2019 to October 2021, a total of 105 patients with IBD were enrolled prospectively. To obtain objective data, micronutrients were measured in the patients' serum, and body composition analysis was performed using bioelectrical impedance analysis. There were 51 patients with ulcerative colitis (UC) and 54 with Crohn’s disease (CD), while the gender ratio (M: F) was 54:51. The average age was 37 ± 18 years, which was significantly lower in patients with CD than UC (29 ± 16 vs. 45 ± 16, p < 0.001). Iron and magnesium were lower in patients with CD compared to UC, respectively (63.3 ± 42.5 vs. 82.8 ± 44.0 µg/dL, p = 0.024, 2.08 ± 0.15 vs. 2.15 ± 0.19 mg/dL, p = 0.036). Vitamin D levels showed insufficiency in patients with UC and deficiency (below 20 ng/mL) in patients with CD (20.1 ± 10.6 vs. 19.0 ± 9.9 ng/mL, p = 0.567). In the UC and CD patient groups, skeletal muscle index (SMI) and adjusted skeletal muscle mass were lower in patients with CD compared to UC (SMI: 32.8 ± 4.7 vs. 35.8 ± 5.5%, p < 0.004, adjusted skeletal muscle: 7.0 ± 1.5 vs. 8.2 ± 1.9 kg/m2, p < 0.001). In conclusion, decreased trace elements, specifically iron, magnesium, and vitamin D, as well as skeletal muscle mass were observed to be prominent in patients with CD as compared to UC. Full article
(This article belongs to the Special Issue Micronutrients in the Regulation of Skeletal Muscle Anabolism)
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