Pushing the limit: masticatory stress and adaptive plasticity in mammalian craniomandibular joints
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Cites background or methods from "Pushing the limit: masticatory stre..."
...The first study was carried out using rabbits raised for 3.4 months from weaning until subadulthood (4.5 months old) on either an under-use or over-use diet (Taylor et al., 2006; Ravosa et al., 2007a, 2008a,b; Menegaz et al., 2009, 2010)....
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...…of rabbits subjected to elevated masticatory stress during biting and chewing of hay (Weijs & de Jongh, 1977), there is a stereotypical adaptive response with members of the ‘over-use’ dietary cohort developing larger and more biomineralised condylar heads (Ravosa et al., 2007a, 2010a) (Table 3)....
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...…interpretation of past behaviours (e.g. White et al., 2009; Foth, Tischlinger & Rauhut, 2014), evidence on joint function and musculoskeletal biomechanics is inevitably lost because such functional systems are not wholly composed of mineralised tissues (Ravosa et al., 2007a; Holliday et al., 2010)....
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...…latter is more mechanically challenging (i.e. tougher and with a higher elastic modulus) in terms of the forces and chewing cycles required for fragmentation along the postcanine dentition, thus inducing elevated osteogenesis of masticatory structures (Ravosa et al., 2007a; Menegaz et al., 2009)....
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...…plasticity in rabbits is consistent with similar shorter-term experiments in other mammals (Beecher & Corruccini, 1981; Bouvier & Hylander, 1981, 1984, 1996; Beecher, Corruccini & Freeman, 1983; Yamada & Kimmel, 1991; He & Kiliaridis, 2003; Lieberman et al., 2004; Ravosa et al., 2007a, 2008a,b)....
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1 citations
References
2,339 citations
"Pushing the limit: masticatory stre..." refers methods in this paper
...Using the NIST tabulation of mass attenuation coefficients (Hubbell and Selzer, 2001), the effective energy for Northwestern University’s Scanco MicroCT 40 operated at 70·kV is about 30·keV....
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2,168 citations
"Pushing the limit: masticatory stre..." refers background in this paper
...progressively deeper zones of TMJ articular cartilage are as follows: articular, filamentous network of elongate cells densely packed and tangentially arranged (high H2O, low proteoglycan, collagen rich); proliferative, ovoid or circular cells random in distribution (proteoglycan/protein production area); chondroblastic, large cell bundles arranged in columns (tidemark separates this from subjacent layer); hypertrophic chondrocyte/calcified, cells heavily encrusted in apatitic salts (Mankin et al., 1971; Newton and Nunamaker, 1985; Ostergaard et al., 1999)....
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...Lower proteoglycan content throughout the FC pad and in the lower two layers of the condylar cartilage of O-diet rabbits mirrors findings for the articular surface of mammal limb elements, where age-related onset of cartilage degradation is linked to decreases in proteoglycan content (Mankin et al., 1971; Newton and Nunamaker, 1985; Haskin et al., 1995; Ostergaard et al., 1999)....
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...…condylar cartilage of O-diet rabbits mirrors findings for the articular surface of mammal limb elements, where age-related onset of cartilage degradation is linked to decreases in proteoglycan content (Mankin et al., 1971; Newton and Nunamaker, 1985; Haskin et al., 1995; Ostergaard et al., 1999)....
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...…(proteoglycan/protein production area); chondroblastic, large cell bundles arranged in columns (tidemark separates this from subjacent layer); hypertrophic chondrocyte/calcified, cells heavily encrusted in apatitic salts (Mankin et al., 1971; Newton and Nunamaker, 1985; Ostergaard et al., 1999)....
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...…in cartilage composition reflect the early onset and progression of degenerative effects that compromise the structural integrity of a joint (Mankin et al., 1971; Newton and Nunamaker, 1985; Haskin et al., 1995; Kamelchuk and Major, 1995; Ishibashi et al., 1996; Ostergaard et al., 1999;…...
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2,003 citations
"Pushing the limit: masticatory stre..." refers background in this paper
...In the growth plate of a joint, apoptosis is a normal terminal event for hypertrophic chondrocytes, and such cells express angiogenic factors initiating vascular invasion, erosion of mineralized cartilage and bone formation (Gerber et al., 1999)....
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1,485 citations
"Pushing the limit: masticatory stre..." refers background in this paper
...628 Introduction Of late, adaptive plasticity has attracted considerable attention in myriad fields of biology (Gotthard and Nylin, 1995; Agrawal, 2001; Holden and Vogel, 2002; West-Eberhard, 2003)....
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