... of mineralization through the cross-sections of the scales as a function of normalized thickness are shown in Fig. 7 . Results for representative ontogenetic and regenerated scales of fish maintained at 10°C are shown in Fig. 7 A and B, respectively. Despite some differences in the absolute mineral to collagen...

...: The mechanical properties of the dorsal aorta and the pulmonary artery during fasting and after feeding reveal increased pulmonary artery distensibility and elasticity during digestion, which possibly improves the Windkessel effect. Collagen Dorsal aorta Elastin Postprandial period Snakes Sulfated...

...Marina Pozzolini; Sonia Scarfì; Lorenzo Gallus; Sara Ferrando; Carlo Cerrano; Marco Giovine ABSTRACT Exposure to crystalline silica particles causes silicosis, an occupational disease leading to an overproduction of collagen in the lung. The first step of this pathology is characterized...

... of cetacean diaphragms possess subserosal collagen fibres that would stabilize the diaphragm against craniocaudal stretch; (2) subserosal collagen covers 5–60% of the thoracic diaphragm surface, and area correlates strongly with published values for swimming speed of each cetacean species ( P <0.001...

... stratum (LS)] and another with oblique fibre bundles [oblique stratum (OS)] in multiple layers with alternating angles of ~45 deg to the LS and body axis ( Fig. 2 ). The muscle strata have been described as highly extensible and elastic, due to a high proportion of elastin and collagen ( Sokolov, 1960...

... suppresses the immune response and increases deposition of collagen. Therefore, we examined inflammatory markers and matrix metalloproteinase (MMP) activity in relation to CBS expression and H 2 S levels in lungs of euthermic and hibernating Syrian hamsters. Lung remodeling during torpor was confirmed...

...Timothy F. Tirrell; Mark S. Cook; J. Austin Carr; Evie Lin; Samuel R. Ward; Richard L. Lieber SUMMARY The molecular components largely responsible for muscle attributes such as passive tension development (titin and collagen), active tension development (myosin heavy chain, MHC...

... with extracellular space remodeling, total and relative collagen contents were significantly elevated in older seals (115% in longissimus dorsi; 65% in pectoralis). The ratio of muscle myocyte to collagen declined with age (50–63%) at both sites. Additionally, a shift towards a higher ratio of type I to type III...

... ) 2 10 2007 © The Company of Biologists Limited 2007 2007 mussel byssus self-healing histidine–metal collagen The key to survival on rocky wave- and wind-swept seashores for many mussel species is a beard-like array of tethering attachment threads known collectively...

... speeds and ecological niches. We found vertebral cartilage to be as stiff and strong as mammalian trabecular bone. Inferred swimming speed was a good, but not infallible, predictor of stiffness and strength. Collagen content was also a good predictor of material stiffness and strength, although...

...) of the collagen arrays in the primate tissues to test whether these structural colours are produced by incoherent or coherent scattering (i.e. constructive interference). The structural colours in Mandrillus rump and facial skin and Cercopithecus scrotum are produced by coherent scattering by quasi-ordered arrays...

... 2003 2003 black bear Ursus americanus bone formation hibernation metabolism adaptation collagen disuse Disuse osteoporosis occurs in patients with spinal cord injuries, patients confined to prolonged bed rest, and astronauts exposed to microgravity during space flight ( Collet et...

.... The dermis of structurally coloured skin consists of a thick (100–500 μm) layer of collagen that is usually underlain by a layer of melanin granules. Transmission electron micrographs(TEMs) of this colour-producing dermal collagen layer revealed quasi-ordered arrays of parallel collagen fibres. Two...

...Hayden-William Courtland; Glenda M. Wright; Robert G. Root; M. Edwin DeMont SUMMARY In contrast to all other vertebrate cartilages, the major extracellular matrix protein of lamprey cartilages is not collagen. Instead, there exists a unique family of noncollagenous structural proteins...

... on Mytilus edulis , with few detailed comparisons with other mussels. M. galloprovincialis , a closely related species, provides an opportunity for a thorough comparison. Three full-length cDNA clones encoding the byssal collagens, precollagen D(preCol-D), preCol-NG and preCol-P, were isolated from M...

...Greg K. Szulgit; Robert E. Shadwick ABSTRACT The dermis of the holothurian Cucumaria frondosa is a mutable collagenous tissue (MCT). In this study, the inner and outer regions of the dermis were separated and used to make two different tissue extracts. These extracts were applied to intact pieces...

... in birds and the first indications of the possible function of ultraviolet skin colours in avian communication. These structural colours are produced by coherent scattering from arrays of parallel collagen fibres in the dermis. Tissues of Philepitta castanea were organized into hexagonal, crystal-like...

.... Histological examination of blood vessels shows that, generally, the elastic tissue is laid down in concentric layers, interspersed with collagen and circumferentially arranged smooth muscle cells. In animals as different as Nautilus and the rat, there is a striking similarity in the microscopic appearance...

...Robert F. Ker ABSTRACT Tendon, articular cartilage and the human heel pad are all soft load-bearing collagenous tissues but are designed according to utterly different micromechanical principles. Tendon is (probably) a fibre-reinforced composite material. The mechanical properties of cartilage...

..., with an increase in storage with increased swimming velocity. Microscopic tissue analysis found direct correlations between macroscopic properties and microscopic characteristics, and electron microscopical analysis of all three types of intramuscular fibre revealed that all three types are collagenous in nature...