Altowati, M. M.A., Shepherd, S., McMillan, M., McGrogan, P., Russell, R., Ahmed, S. F. and Wong, S. C. (2018) Persistence of muscle-bone deficits following anti-tumour necrosis factor therapy in adolescents with Crohn disease. Journal of Pediatric Gastroenterology and Nutrition, 67(6), pp. 738-744. (doi: 10.1097/MPG.0000000000002099) (PMID:30052566)
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Abstract
Objectives: The aim of the study is to assess change in the muscle-bone unit in adolescents with Crohn disease (CD) on anti-tumour necrosis factor (anti-TNFα). Methods: Prospective study following anti-TNFα in 19 adolescents with CD with a median age (range) of 15.1 years (11.2, 17.2). At baseline, 6 and 12 months, subjects had a biochemical assessment of insulin growth factor axis, bone turnover and muscle-bone health by dual energy absorptiometry (DXA), peripheral quantitative computed tomography (pQCT), and dynamic isometry. Results: Significant clinical improvement in disease activity was observed by 2 weeks (P = 0.004 vs baseline) and maintained at 12 months (P = 0.038 vs baseline). Median bone specific alkaline phosphatase standard deviation score (SDS) increased from −1.7 (−3.6 to −1.0) to −1.2 (−3.6 to −0.5) by 6 weeks (P = 0.01). At baseline, DXA total body and lumbar spine bone mineral density (BMD) SDS was −0.9 (−2.3 to 0.5) and −1.1 (−2.9 to 0.4), respectively. At baseline, pQCT trabecular BMD SDS at 4% tibia and muscle cross-sectional area SDS at 66% radius was −1.6 (−3.2 to 1.1) and −2.4 (−4.3 to −0.3), respectively. At baseline, maximal isometric grip force (MIGF) of the non-dominant hand adjusted for height was −1.5 (−4.5 to 0.49). All these deficits in muscle-bone persisted at 6 and 12 months. Conclusions: Despite improvement in disease and osteoblast activity, bone and muscle deficits, as assessed by DXA, pQCT, and grip strength in adolescents with CD did not improve following twelve months of anti-TNFα.
Item Type: | Articles |
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Additional Information: | M.A. is funded by the Higher Education Ministry of Libyan Government for a postgraduate studentship. R.K.R. is supported by an NHS Research Scotland Senior Fellowship. The IBD team at RHC Glasgow is supported by the Catherine McEwan Foundation and Yorkhill IBD fund. |
Status: | Published |
Refereed: | Yes |
Glasgow Author(s) Enlighten ID: | Wong, Dr Jarod and ALTOWATI, Mabrouka and Ahmed, Professor Syed Faisal |
Authors: | Altowati, M. M.A., Shepherd, S., McMillan, M., McGrogan, P., Russell, R., Ahmed, S. F., and Wong, S. C. |
College/School: | College of Medical Veterinary and Life Sciences College of Medical Veterinary and Life Sciences > School of Medicine, Dentistry & Nursing |
Journal Name: | Journal of Pediatric Gastroenterology and Nutrition |
Publisher: | Lippincott Williams & Wilkins |
ISSN: | 0277-2116 |
ISSN (Online): | 1536-4801 |
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