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Biorheology is an international interdisciplinary journal that publishes research on the deformation and flow properties of biological systems or materials. It is the aim of the editors and publishers of
Biorheology to bring together contributions from those working in various fields of biorheological research from all over the world. A diverse editorial board with broad international representation provides guidance and expertise in wide-ranging applications of rheological methods to biological systems and materials.
The aim of biorheological research is to determine and characterize the dynamics of physiological processes at all levels of organization. Manuscripts should report original theoretical and/or experimental research promoting the scientific and technological advances in a broad field that ranges from the rheology of macromolecules and macromolecular arrays to cell, tissue and organ rheology. In all these areas, the interrelationships of rheological properties of the systems or materials investigated and their structural and functional aspects are stressed.
The scope of papers solicited by
Biorheology extends to systems at different levels of organization that have never been studied before, or, if studied previously, have either never been analyzed in terms of their rheological properties or have not been studied from the point of view of the rheological matching between their structural and functional properties. This biorheological approach applies in particular to molecular studies where changes of physical properties and conformation are investigated without reference to how the process actually takes place, how the forces generated are matched to the properties of the structures and environment concerned, proper time scales, or what structures or strength of structures are required.
Biorheology invites papers in which such 'molecular biorheological' aspects, whether in animal or plant systems, are examined and discussed. While we emphasize the biorheology of physiological function in organs and systems, the biorheology of disease is of equal interest. Biorheological analyses of pathological processes and their clinical implications are encouraged, including basic clinical research on hemodynamics and hemorheology.
In keeping with the rapidly developing fields of mechanobiology and regenerative medicine,
Biorheology aims to include studies of the rheological aspects of these fields by focusing on the dynamics of mechanical stress formation and the response of biological materials at the molecular and cellular level resulting from fluid-solid interactions. With increasing focus on new applications of nanotechnology to biological systems, rheological studies of the behavior of biological materials in therapeutic or diagnostic medical devices operating at the micro and nano scales are most welcome.
Abstract: Several factors are known to be involved in the destruction of the articular cartilage. Interleukin-1 (IL-1) plays an important role in the pathogenesis of osteoarthritis (OA) either directly or through the stimulation of catabolic factors. The action of IL-1 on articular cartilage is multifaceted and it most likely plays an important role in the mechanism of cartilage destruction. IL-1 suppresses the synthesis of the cartilage matrix components and promotes the degradation of cartilage matrix macromolecules. Diacerein is an anthraquinone molecule that has been shown to reduce the severity of OA, both in man and in animal models. The present study…was designed to evaluate in vitro effects of diacerein on IL-1β expression in LPS or IL-1α stimulated chondrocytes. Intracellular IL-1β production was analysed in articular chondrocytes cultured in monolayer or in alginate 3D-biosystems in the presence of lipopolysaccharide (LPS) or IL-1α, with or without diacerein. The results show that LPS and IL-1α increase intracellular IL-1β and Diacerein inhibited LPS-induced and IL-1α induced IL-1β production by articular chondrocytes. Moreover, the effect of mechanical stimulation was analysed. An inhibitory effect of DAR at therapeutic concentrations on IL-1β production in articular chondrocytes is suggested.
Abstract: Osteoarthritis, the clinical syndrome of joint pain and dysfunction due to joint degeneration, is among the most frequent and symptomatic medical problems for middle aged and older people, and it is the most common cause of long term disability in most populations of people over 65. Currently there are no effective methods of preventing or curing osteoarthritis. Post-traumatic OA, the joint degeneration, pain and dysfunction that develop following joint injury, is the form of OA that is most directly related to elevated articular surface contact stress. However, mechanical stress that exceeds the tolerance of the articular surface can cause or…accelerate the progression of joint degeneration in all individuals and in all synovial joints. In some patients, decreasing mechanical forces on degenerated joint surfaces stimulates formation of a new biologic articular surface. The advances in understanding of the effects of mechanical forces on chondrocytes and cartilage presented and discussed at the 4th Symposium on Mechanobiology: Cartilage and Chondrocyte will help in the efforts to develop new methods of preventing and treating osteoarthritis.
vol. 43, no. 3,4, pp. 603-609, 2006