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J Musculoskelet Neuronal Interact. 2019 Dec 1;19(4):435-447.

Forearm bone density, cross-sectional size and muscle cross-sectional area in adolescents with diabetes mellitus type 1 assessed by peripheral quantitative computed tomography.

Author information

1
Department of Biochemistry, Radioimmunology and Experimental Medicine, The Children's Memorial Health Institute, Warsaw, Poland.
2
Department of Human Nutrition, Warsaw University of Life Sciences-SGGW, Warsaw, Poland.
3
Department of Endocrinology and Diabetology, The Children's Memorial Health Institute, Warsaw, Poland.
4
Faculty of Medicine and Health Sciences, Jan Kochanowski University, Kielce, Poland.

Abstract

OBJECTIVES:

The mechanical components of bone strength (size, shape and density) in adolescents with T1DM are not extensively studied.

METHODS:

The studied group comprises 39 adolescents, aged 11,9-18,0 yrs. The bone and muscle properties were investigated at the forearm (66% and 4% site). All measurements were performed using pQCT method.

RESULTS:

The mean Z-score calculated for the ratio of the total cortical bone cross-sectional area to muscle cross-sectional area at 66% was lower than zero in girls (-0,93+/-1,06; p=0,0042). Significant differences between Tanner stages were noted in boys for mean Z-scores for bone masses, cross-sectional dimensions and strength.

CONCLUSIONS:

T1DM girls revealed a decreased ratio of cortical bone area/muscle area, reflecting disturbed adaptation of the cortical shaft to the muscle force. When the Z-scores of cortical shell dimensions were investigated, cases in Tanner stage 5 diverged from "less mature" individuals, which may suggests that bone shaft development in these individuals was impaired, affecting both size and strength.

KEYWORDS:

Adolescent; Bone Mineral Density; Forearm; T1DM; pQCT

PMID:
31789294
PMCID:
PMC6944798

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