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Bone Health Index and bone turnover in pediatric patients with type 1 diabetes mellitus and poor metabolic control
Author(s) -
SlavchevaProdanova Olga,
Konstantinova Maia,
Tsakova Adelina,
Savova Radka,
Archinkova Margarita
Publication year - 2020
Publication title -
pediatric diabetes
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.678
H-Index - 75
eISSN - 1399-5448
pISSN - 1399-543X
DOI - 10.1111/pedi.12930
Subject(s) - medicine , bone remodeling , diabetes mellitus , urine , osteocalcin , gastroenterology , type 1 diabetes , metabolic bone disease , endocrinology , osteoporosis , alkaline phosphatase , biochemistry , chemistry , enzyme
Background There is a need for a non‐invasive, affordable, and reliable method for bone health screening in pediatric patients at risk. Objective To assess Bone Health Index (BHI) in pediatric patients with type 1 diabetes (T1D) and its relation to bone metabolism, age at onset, duration, control, and insulin dose. Subjects and methods Left‐hand radiographs were obtained from 65 patients with T1D, mean age 11.23 ± 3.89 years, mean disease duration 5.23 ± 3.76 years and mean glycosylated hemoglobin (HbA1c)‐83 mmol/mol (9.7%). Blood and 24 hours urine samples were collected for bone and mineral metabolism assessment. BoneXpert was used to determine BHI, Bone Health Index standard deviation score (BHI SDS), and bone age. Results : Mean BHI SDS was −1.15 ± 1.19 (n = 54). In 20.37% (n = 11) BHI SDS was < −2SD with mean value −2.82 ± 0. 69, P  < .001. These patients had lower levels of beta cross laps (0.77  ± 0.33 ng/mL vs 1.17 ± 0.47 ng/mL), osteocalcin (47.20 ± 14.07 ng/mL vs 75.91 ± 32.08 ng/mL), serum magnesium (0.79 ± 0.05 mmol/L vs 0.83 ± 0.06 mmol/L) and phosphorus (1.48 ± 0.29 mmol/L vs 1.71 ± 0.28 mmol/L) but higher ionized calcium (1.29 ± 0.04 mmol/L vs 1.26 ± 0.05 mmol/L), P  < .05, compared to patients with BHI SDS in the normal range. We found a positive correlation between BHI SDS and age at manifestation ( r = 0.307, P = 0.024) and a negative one with disease duration ( r = −0.284, P = .038). No correlations were found with HbA1c, insulin dose, height, weight, BMI. Conclusions To the best of our knowledge, this is the first study to assess bone health in pediatric patients with T1D using BHI. We found significantly decreased cortical bone density and bone turnover in 20.37%. Earlier age at onset and diabetes duration may have a negative impact on cortical bone density in patients with poor control. Longitudinal studies are needed to follow changes or to assess future interventions.

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