PUBLICATION
Mechanical properties of skeletal bone in gene-mutated stöpseldtl28d and wild-type zebrafish (Danio rerio) measured by atomic force microscopy-based nanoindentation
- Authors
- Zhang, Y., Cui, F.Z., Wang, X.M., Feng, Q.L., and Zhu, X.D.
- ID
- ZDB-PUB-020410-2
- Date
- 2002
- Source
- Bone 30(4): 541-546 (Journal)
- Registered Authors
- Cui, Fu-zhai, Zhang, Yu
- Keywords
- bone; zebrafish; mutant; atomic force microscopy (AFM); nanoindentation; brittleness
- MeSH Terms
-
- Animals
- Biomechanical Phenomena
- Bone and Bones/physiology*
- Bone and Bones/ultrastructure*
- Elasticity
- Fractures, Bone/genetics*
- Fractures, Bone/physiopathology*
- Microscopy, Atomic Force
- Microscopy, Electron, Scanning
- Mutagenesis
- Osteogenesis Imperfecta/genetics
- Osteogenesis Imperfecta/physiopathology
- Phenotype
- Zebrafish
- PubMed
- 11934643 Full text @ Bone
Citation
Zhang, Y., Cui, F.Z., Wang, X.M., Feng, Q.L., and Zhu, X.D. (2002) Mechanical properties of skeletal bone in gene-mutated stöpseldtl28d and wild-type zebrafish (Danio rerio) measured by atomic force microscopy-based nanoindentation. Bone. 30(4):541-546.
Abstract
An atomic force microscopy (AFM)-based nanoindenter was used to evaluate the mechanical properties of skeletal bones in wild-type and gene-mutated zebrafish (Danio rerio), stopsel(dtl28d). Both skeletons were isolated from adult zebrafish and tested under a load of 5 mN. It was found that stp/stp bone has a similar nanohardness but significantly greater elastic modulus compared with that of wild-type bone. The residual indenter impressions using AFM and the fracture surfaces of both bones using scanning electron microscopy were examined and showed that the bone of zebrafish becomes more brittle after the stp mutation. This first observation of the alteration of bone mechanical behavior by gene mutation in zebrafish system is of scientific and clinical relevance to many areas of study, such as bone fracture and fragility mechanisms in human heritable disorders and bone-materials fabrication via gene engineering.
Genes / Markers
Expression
Phenotype
Mutations / Transgenics
Human Disease / Model
Sequence Targeting Reagents
Fish
Orthology
Engineered Foreign Genes
Mapping