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再発性骨軟化症の子供の骨代謝と骨密度
[BONE METABOLISM AND BONE MINERAL DENSITY IN CHILDREN WITH RECURRENT BRONCHITIS].
PMID: 32672701
抄録
目的-再発性気管支炎(RB)の小児における骨代謝の状態と骨ミネラル密度(BMD)を調べる。6歳から10歳までの120名の小児を対象とした。2つのグループに分けた:第1グループ:RBを有する小児(n=60)、第2グループ:上気道感染症を時々患っている小児(n=60)。平均年齢は8歳2ヵ月であった。RB児では、第2群と比較して、アルカリホスファターゼ活性の上昇(35.0%)(p<0.05)、血清オステオカルシン値の上昇(66.7%)(p<0.05)、コラーゲン1型分解物(15.0%)(p<0.05)、副甲状腺ホルモン(13.3%)(p<0.05)、血清25(OH)Dの30ng/ml未満の減少(59.3%)(p<0.05)が明らかになった。RB児のDXAでは、L1でBMD低下24回(40.0%)、L2で25回(41.7%)、L3で24回(40.0%)、L4で27回(45.0%)、左大腿骨頚部28回(46.7%)、右大腿骨頚部22回(36.7%)が認められた。RB児では、ビタミンD欠乏とBMD低下を背景に骨吸収の活性化が認められた。
The aim - to determine the bone metabolism status and bone mineral density (BMD) in children with recurrent bronchitis (RB). 120 children aged 6 to 10 years were examined. Formed 2 groups: 1st group - children with RB (n=60); 2nd group - children occasionally suffering of upper respiratory tract infections (n=60). The average age was 8 years 2 months. Among children with RB, compared with children of the 2nd group, an increase in the number of patients with an increase in alkaline phosphatase activity (by 35.0%) (p<0.05), and serum osteocalcin level (by 66.7%) (p<0.05) was revealed, collagen type 1 degradation products (by 15.0%) (p<0.05), parathyroid hormone (by 13.3%) (p<0.05), decrease of serum 25(OH)D less than 30 ng/ml (by 59.3%) (p<0.05). A DXA in children with RB showed the presence of 24 (40.0%) episodes of decreased BMD in the L1, 25 (41.7%) episodes in L2, 24 (40.0%) episodes in L3, 27 (45.0%) episodes in L4, 28 (46.7%) cases in the left femur neck, 22 (36.7%) cases in the right femur neck. In children with RB was established activation of bone resorption on background of vitamin D deficiency and BMD decrease.