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Biochemical markers of bone turnover in patients with spinal metastases after resistance training under radiotherapy – a randomized trial

Rief, Harald ; Omlor, Georg ; Akbar, Michael ; Bruckner, Thomas ; Rieken, Stefan ; Förster, Robert ; Schlampp, Ingmar ; Welzel, Thomas ; Bostel, Tilman ; Roth, Heinz Jürgen ; Debus, Jürgen

In: BMC Cancer, 16 (2016), Nr. 231. pp. 1-7. ISSN 1471-2407

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Download (500kB) | Lizenz: Creative Commons LizenzvertragBiochemical markers of bone turnover in patients with spinal metastases after resistance training under radiotherapy – a randomized trial by Rief, Harald ; Omlor, Georg ; Akbar, Michael ; Bruckner, Thomas ; Rieken, Stefan ; Förster, Robert ; Schlampp, Ingmar ; Welzel, Thomas ; Bostel, Tilman ; Roth, Heinz Jürgen ; Debus, Jürgen underlies the terms of Creative Commons Attribution 3.0 Germany

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Abstract

Background: To compare the effects of resistance training versus passive physical therapy on bone turnover markers (BTM) in the metastatic bone during radiation therapy (RT) in patients with spinal bone metastases. Secondly, to evaluate an association of BTM to local response, skeletal-related events (SRE), and number of metastases. Methods: In this randomized trial, 60 patients were allocated from September 2011 to March 2013 into one of the two arms: resistance training (Arm A) or passive physical therapy (Arm B) with thirty patients in each arm during RT. Biochemical markers such as pyridinoline (PYD), desoxy-pyridinoline (DPD), bone alkaline phosphatase (BAP), total amino-terminal propeptide of type I collagen (PINP), beta-isomer of carboxy-terminal telopeptide of type I collagen (CTX-I), and cross-linked N-telopeptide of type I collagen (NTX) were analyzed at baseline, and three months after RT. Results: Mean change values of PYD and CTX-I were significantly lower at 3 months after RT (p = 0.035 and p = 0.043) in Arm A. Importantly, all markers decreased in both arms, except of PYD and CTX-I in arm B, although significance was not reached for some biomarkers. In arm A, the local response was significantly higher (p = 0.003) and PINP could be identified as a predictor for survivors (OR 0.968, 95%CI 0.938–0.999, p = 0.043). BAP (OR 0.974, 95%CI 0.950–0.998, p = 0.034) and PINP (OR 1.025, 95%CI 1.001–1.049, p = 0.044) were related with an avoidance of SRE. Conclusions: In this group of patients with spinal bone metastases, we were able to show that patients with guided resistance training of the paravertebral muscles can influence BTM. PYD and CTX-I decreased significantly in arm A. PINP can be considered as a complementary tool for prediction of local response, and PINP as well as BAP for avoidance of SRE. Trial registration: Clinical trial identifier NCT 01409720. August 2, 2011.

Item Type: Article
Journal or Publication Title: BMC Cancer
Volume: 16
Number: 231
Publisher: BioMed Central; Springer
Place of Publication: London; Berlin; Heidelberg
Date Deposited: 17 Mar 2016 09:40
Date: 2016
ISSN: 1471-2407
Page Range: pp. 1-7
Faculties / Institutes: Medizinische Fakultät Heidelberg > Orthopädische Klinik
Medizinische Fakultät Heidelberg > Radiologische Universitätsklinik
Medizinische Fakultät Heidelberg > Institut für Medizinische Biometrie und Informatik
Subjects: 610 Medical sciences Medicine
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