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A Systematic Review of Animal Models of Disuse-Induced Bone Loss.
Brent, Mikkel Bo; Brüel, Annemarie; Thomsen, Jesper Skovhus.
Afiliação
  • Brent MB; Department of Biomedicine, Aarhus University, Aarhus, Denmark. mbb@biomed.au.dk.
  • Brüel A; Department of Biomedicine, Health, Aarhus University, Wilhelm Meyers Allé 3, 8000, Aarhus C, Denmark. mbb@biomed.au.dk.
  • Thomsen JS; Department of Biomedicine, Aarhus University, Aarhus, Denmark.
Calcif Tissue Int ; 108(5): 561-575, 2021 05.
Article em En | MEDLINE | ID: mdl-33386477
ABSTRACT

OBJECTIVE:

Several different animal models are used to study disuse-induced bone loss. This systematic review aims to give a comprehensive overview of the animal models of disuse-induced bone loss and provide a detailed narrative synthesis of each unique animal model.

METHODS:

PubMed and Embase were systematically searched for animal models of disuse from inception to November 30, 2019. In addition, Google Scholar and personal file archives were searched for relevant publications not indexed in PubMed or Embase. Two reviewers independently reviewed titles and abstracts for full-text inclusion. Data were extracted using a predefined extraction scheme to ensure standardization.

RESULTS:

1964 titles and abstracts were screened of which 653 full-text articles were included. The most common animal species used to model disuse were rats (59%) and mice (30%). Males (53%) where used in the majority of the studies and genetically modified animals accounted for 7%. Twelve different methods to induce disuse were identified. The most frequently used methods were hindlimb unloading (44%), neurectomy (15%), bandages and orthoses (15%), and botulinum toxin (9%). The median time of disuse was 21 days (quartiles 14 days, 36 days) and the median number of animals per group subjected to disuse was 10 (quartiles 7, 14). Random group allocation was reported in 43% of the studies. Fewer than 5% of the studies justified the number of animals per group by a sample size calculation to ensure adequate statistical power.

CONCLUSION:

Multiple animal models of disuse-induced bone loss exist, and several species of animals have successfully been studied. The complexity of disuse-induced bone loss warrants rigid research study designs. This systematic review emphasized the need for standardization of animal disuse research and reporting.
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Texto completo: 1 Base de dados: MEDLINE Assunto principal: Doenças Ósseas Metabólicas Tipo de estudo: Systematic_reviews Limite: Animals Idioma: En Ano de publicação: 2021 Tipo de documento: Article

Texto completo: 1 Base de dados: MEDLINE Assunto principal: Doenças Ósseas Metabólicas Tipo de estudo: Systematic_reviews Limite: Animals Idioma: En Ano de publicação: 2021 Tipo de documento: Article