Academic literature on the topic 'Elastic tissue'

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Journal articles on the topic "Elastic tissue"

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Saitow, Cassandra B., Steven G. Wise, Anthony S. Weiss, John J. Castellot, and David L. Kaplan. "Elastin biology and tissue engineering with adult cells." BioMolecular Concepts 4, no. 2 (April 1, 2013): 173–85. http://dx.doi.org/10.1515/bmc-2012-0040.

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AbstractThe inability of adult cells to produce well-organized, robust elastic fibers has long been a barrier to the successful engineering of certain tissues. In this review, we focus primarily on elastin with respect to tissue-engineered vascular substitutes. To understand elastin regulation during normal development, we describe the role of various elastic fiber accessory proteins. Biochemical pathways regulating expression of the elastin gene are addressed, with particular focus on tissue-engineering research using adult-derived cells.
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White, J. F., J. L. Hughes, J. S. Kumaratilake, J. C. Fanning, M. A. Gibson, R. Krishnan, and E. G. Cleary. "Post-embedding methods for immunolocalization of elastin and related components in tissues." Journal of Histochemistry & Cytochemistry 36, no. 12 (December 1988): 1543–51. http://dx.doi.org/10.1177/36.12.3142951.

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Elastic tissue is composed of amorphous-appearing elastin and 12-nm diameter microfibrils, one component of which has recently been isolated and characterized as the 31 KD microfibril-associated glycoprotein MAGP. Monospecific antibodies to each of these components have been developed in this laboratory. The parameters that determine optimal localization of colloidal gold probes for post-embedding immunolabeling of elastic tissue components have been systematically studied in a variety of normal and developing tissues in mammals and birds. Protein A-gold probes stabilized with dextran have been shown to provide complexes that remain stable after more than 2 years. Conditions have been defined that permit precise localization within the extracellular matrix of antibodies to MAGP and to elastin, singly and together. Best results were obtained with acrylic resins (Lowicryl K4M or LR White). Fixation in glutaraldehyde or other aldehydic fixatives, with or without osmium, did not affect the immunostaining of elastic tissue with affinity-purified antibodies to tropoelastin, or to anti-[alpha-elastin] or anti-[alkali-insoluble elastin]. Immunostaining with the anti-MAGP antibody was less robust and was possible in tissues which had been fixed only lightly before embedding in Lowicryl K4M or LR White. This staining was enhanced by metaperiodate oxidation of the sections as well as by reduction of the tissues with sodium borohydride en bloc, followed by hyaluronidase digestion of the sections. The effects on immunostaining of a range of enzyme digestions have also been examined. Conditions have thus been defined that make possible detailed study of the relationship between elastic tissue, elastin-associated microfibrils, and other microfibrillar structures in normal and abnormal tissues during development and aging.
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Green, Ellen M., Jessica C. Mansfield, James S. Bell, and C. Peter Winlove. "The structure and micromechanics of elastic tissue." Interface Focus 4, no. 2 (April 6, 2014): 20130058. http://dx.doi.org/10.1098/rsfs.2013.0058.

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Elastin is a major component of tissues such as lung and blood vessels, and endows them with the long-range elasticity necessary for their physiological functions. Recent research has revealed the complexity of these elastin structures and drawn attention to the existence of extensive networks of fine elastin fibres in tissues such as articular cartilage and the intervertebral disc. Nonlinear microscopy, allowing the visualization of these structures in living tissues, is informing analysis of their mechanical properties. Elastic fibres are complex in composition and structure containing, in addition to elastin, an array of microfibrillar proteins, principally fibrillin. Raman microspectrometry and X-ray scattering have provided new insights into the mechanisms of elasticity of the individual component proteins at the molecular and fibrillar levels, but more remains to be done in understanding their mechanical interactions in composite matrices. Elastic tissue is one of the most stable components of the extracellular matrix, but impaired mechanical function is associated with ageing and diseases such as atherosclerosis and diabetes. Efforts to understand these associations through studying the effects of processes such as calcium and lipid binding and glycation on the mechanical properties of elastin preparations in vitro have produced a confusing picture, and further efforts are required to determine the molecular basis of such effects.
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Trębacz, Hanna, and Angelika Barzycka. "Mechanical Properties and Functions of Elastin: An Overview." Biomolecules 13, no. 3 (March 22, 2023): 574. http://dx.doi.org/10.3390/biom13030574.

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Human tissues must be elastic, much like other materials that work under continuous loads without losing functionality. The elasticity of tissues is provided by elastin, a unique protein of the extracellular matrix (ECM) of mammals. Its function is to endow soft tissues with low stiffness, high and fully reversible extensibility, and efficient elastic–energy storage. Depending on the mechanical functions, the amount and distribution of elastin-rich elastic fibers vary between and within tissues and organs. The article presents a concise overview of the mechanical properties of elastin and its role in the elasticity of soft tissues. Both the occurrence of elastin and the relationship between its spatial arrangement and mechanical functions in a given tissue or organ are overviewed. As elastin in tissues occurs only in the form of elastic fibers, the current state of knowledge about their mechanical characteristics, as well as certain aspects of degradation of these fibers and their mechanical performance, is presented. The overview also outlines the latest understanding of the molecular basis of unique physical characteristics of elastin and, in particular, the origin of the driving force of elastic recoil after stretching.
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Subramaniam, K., H. Kumar, and M. H. Tawhai. "Evidence for age-dependent air-space enlargement contributing to loss of lung tissue elastic recoil pressure and increased shear modulus in older age." Journal of Applied Physiology 123, no. 1 (July 1, 2017): 79–87. http://dx.doi.org/10.1152/japplphysiol.00208.2016.

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As a normal part of mature aging, lung tissue undergoes microstructural changes such as alveolar air-space enlargement and redistribution of collagen and elastin away from the alveolar duct. The older lung also experiences an associated decrease in elastic recoil pressure and an increase in specific tissue elastic moduli, but how this relates mechanistically to microstructural remodeling is not well-understood. In this study, we use a structure-based mechanics analysis to elucidate the contributions of age-related air-space enlargement and redistribution of elastin and collagen to loss of lung elastic recoil pressure and increase in tissue elastic moduli. Our results show that age-related geometric changes can result in reduction of elastic recoil pressure and increase in shear and bulk moduli, which is consistent with published experimental data. All elastic moduli were sensitive to the distribution of stiffness (representing elastic fiber density) in the alveolar wall, with homogenous stiffness near the duct and through the septae resulting in a more compliant tissue. The preferential distribution of elastic proteins around the alveolar duct in the healthy young adult lung therefore provides for a more elastic tissue. NEW & NOTEWORTHY We use a structure-based mechanics analysis to correlate air-space enlargement and redistribution of elastin and collagen to age-related changes in the mechanical behavior of lung parenchyma. Our study highlights that both the cause (redistribution of elastin and collagen) and the structural effect (alveolar air-space enlargement) contribute to decline in lung tissue elastic recoil with age; these results are consistent with published data and provide a new avenue for understanding the mechanics of the older lung.
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Lewis, Kevan G., Lionel Bercovitch, Sara W. Dill, and Leslie Robinson-Bostom. "Acquired disorders of elastic tissue: Part II. decreased elastic tissue." Journal of the American Academy of Dermatology 51, no. 2 (August 2004): 165–85. http://dx.doi.org/10.1016/j.jaad.2004.03.016.

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Atarashi, Masaki, Keiichi Miyamoto, and Takashi Horiuchi. "Development of Elastin Biomaterial for Elastic Tissue Engineering." Journal of Life Support Engineering 17, Supplement (2005): 77. http://dx.doi.org/10.5136/lifesupport.17.supplement_77.

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Roark, E. F., D. R. Keene, C. C. Haudenschild, S. Godyna, C. D. Little, and W. S. Argraves. "The association of human fibulin-1 with elastic fibers: an immunohistological, ultrastructural, and RNA study." Journal of Histochemistry & Cytochemistry 43, no. 4 (April 1995): 401–11. http://dx.doi.org/10.1177/43.4.7534784.

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We examined the pattern of fibulin-1 mRNA and protein expression in human tissues and cell lines. Fibulin-1 transcripts were found in RNA isolated from most tissues and a variety of cultured cells, including fibroblasts, smooth muscle cells, and several epithelial cell lines, but not endothelial cells, lymphomyloid cells, or a number of carcinoma and melanoma lines. Immunohistochemical analysis showed that fibulin-1 is an intercellular component of connective tissues, predominantly associated with matrix fibers in tissues such as the cervix, dermis, intimal and medial layers of blood vessels, heart valves, meningeal tissue of the brain, Wharton's jelly of the umbilical cord, testis, and lung. Most of the fibers that were immunoreactive with fibulin-1 antibodies also stained with antibodies to the elastic fiber proteins elastin and fibrillin, as well as with Verhoeff's elastin stain. Immunoelectron microscopic analysis of elastin fibers of skin and saphenous vein revealed that fibulin-1 was located within the amorphous core of the fibers, similar to elastin, but it was not in the fibrillin-containing, elastin-associated microfibrils. Our finding that fibulin-1 is an elastic fiber component suggests several possible new functions for fibulin-1, e.g., that it is a structural protein that contributes to the elastic properties of connective tissue fibers or that is involved with the process of fibrogenesis.
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Fanning, J. C., and E. G. Cleary. "Identification of glycoproteins associated with elastin-associated microfibrils." Journal of Histochemistry & Cytochemistry 33, no. 4 (April 1985): 287–94. http://dx.doi.org/10.1177/33.4.3980982.

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The microfibrils associated with elastic tissue have been shown to be predominantly proteinaceous. On the basis of their affinity for cationic stains, including ruthenium red, they have been assumed to be glycoprotein, but more evidence to support this claim has not been adduced. Despite repeated investigation of glycoprotein materials obtained by extraction of elastic tissues with reagents that appear to remove microfibrils, the chemical composition of elastin-associated microfibrils remains obscure. An electron microscopic study of the microfibrils in two elastin-rich tissues (bovine nuchal ligament and aorta) during their development was pursued using more specific histochemical methods. The periodic acid-alkaline bismuth stain (analogous to the periodic acid-Schiff stain for glycoproteins in light microscopy) has been adapted for this study. Specific aldehyde groups (confirmed by blocking with m-aminophenol or sodium borohydride) were identified after periodate oxidation as fine granules of bismuth stain. These were shown to localize specifically along the elastin-associated microfibrils in a finely punctate form. Staining of the amorphous elastic component did not occur except for a fine rim adjacent to the microfibrils. Lectin binding with concanavalin A (with ferritin markers) confirmed that there are glucose- or mannose-containing proteins associated with the microfibrillar component of elastic tissue. This was true of these microfibrils in all layers of the aortic wall and throughout the ligament. It was also true of mature adult tissues in which there was a lesser proportion of microfibrils. It is concluded that elastin-associated microfibrils really are associated with glycoprotein(s).
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Andrés-Ramos, Irene, Victoria Alegría-Landa, Ignacio Gimeno, Alejandra Pérez-Plaza, Arno Rütten, Heinz Kutzner, and Luis Requena. "Cutaneous Elastic Tissue Anomalies." American Journal of Dermatopathology 41, no. 2 (February 2019): 85–117. http://dx.doi.org/10.1097/dad.0000000000001275.

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Dissertations / Theses on the topic "Elastic tissue"

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Wang, Ziyu. "Development of electrospun tropoelastin-polyglycerol sebacate scaffolds for soft tissue engineering applications." Thesis, The University of Sydney, 2022. https://hdl.handle.net/2123/27880.

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Soft tissue damages from disease, trauma, and ageing often have limited regeneration capability, leading to the loss of tissue functions and impacting the quality of life. Repair tissue damage using polymeric materials can alleviate issues such as donor shortage and transplantation rejection associated with undesirable immune responses. This project developed tropoelastin-polyglycerol sebacate (tropelastin-PGS) scaffolds with a spectrum of 3D microstructures, tuneable mechanical properties, controllable degradation profile, and excellent biocompatibility suitable for diverse soft tissue applications. Specifically, we tested their ability to repair vascular and skin tissue through in vitro experiments and animal models. For vascular repair, tropoelastin-PGS vascular graft was shown to support vascular endothelial cell and smooth muscle cell proliferation and allowed them to express vascular-related functions in vitro. Implanted tropoelastin-PGS vascular graft stayed patent for eight months before sacrifice and harvesting. Histology and immunohistochemistry analysis showed that tropoelastin-PGS graft was completely remodelled into a neoartery with de novo generated extracellular matrix including collagen and organised elastic fibres that mimics the elastic lamellae in the native artery. For skin repair, the tropoelastin-PGS scaffold accelerated wound healing by modulating the local and systemic immune responses. Locally, tropoelastin-PGS treated wound showed reduced inflammation and recruited more M2 macrophage compared to a commercial product Integra® and PGS control, contributing to enhanced wound healing. Systemically, the addition of tropoelastin reduced the relative spleen size. Through flow cytometry, the spleen of the tropoelastin-PGS group contained fewer granulocytes and monocytes compared to PGS and was shown to have an early and stronger engagement with the lymphoid cells associated with the adaptive immune response.
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Ferron, Florence Joelle. "The implications of fibulin-5 on elastin assembly and its role in the elastic fiber /." Thesis, McGill University, 2007. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=101846.

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The extracellular matrix (ECM) is the material found surrounding the cells in a tissue. One component of the ECM is the elastic fiber, which confers the property of elasticity to its environment. Organs such as the lung, skin and major blood vessels have an abundance of elastic fibers so that they are able to expand and recoil. Elastic fibers are composed of two main components; elastin and microfibrils. Microfibrils are composed primarily of fibrillin-1 and provide a scaffold unto which tropoelastin monomers assemble. Elastic fibers interact with many other proteins in the ECM, one of which is fibulin-5. Based on the severe elastic fiber defects observed in the fibulin-5 null mouse, it was established that fibulin-5 plays an essential role in elastic fiber development. This role may be in the deposition of tropoelastin onto microfibrils and/or in stabilizing the elastic fibers in the extracellular matrix. In the present study, the relationship between fibulin-5 and the elastic fiber was investigated through a number of in vivo and in vitro experiments. To test the hypothesis that fibulin-5 requires the presence of elastin to assemble in the ECM, full-length recombinant fibulin-5 (rF5) was purified from transfected cells and used to make a fibulin-5 antibody. Solid-phase binding assays using rF5 showed that fibulin-5 binds tropoelastin at two sites; the initial portion of the C-terminus and the first calcium-binding epidermal growth factor-like domain at the N-terminus. Immunofluorescence staining of elastin null mouse embryonic fibroblast cultures revealed that fibulin-5 does not require elastin to be present in the ECM in order to assemble. Subsequently, solid-phase binding assays showed that fibulin-5 can bind to the N-terminus of fibrillin-1. To determine if fibulin-5 could exist independent of elastin and/or fibrillin-1 in vivo, an immunohistochemical analysis was conducted on heart, liver, lung, colon, spleen, testis and kidney. All three proteins were co-localized in all organs except in the kidney, where fibrillin-1 was found to independently stain the capillary tufts of the renal corpuscles and renal tubules. Thus, fibulin-5 may be co-regulated with elastin and is not present on elastin-independent microfibrils. Additionally, novel locations of elastic fibers were uncovered in the heart, liver, colon, spleen and testis. Overall, this study provides important insights as to the role of fibulin-5 in elastic fiber structure and assembly and also reveals the complexity in understanding the pathogenesis of diseases involving elastic fiber proteins.
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Hyder, Safeer. "Ultrasound based soft tissue elastic modulus and strain measurement." Thesis, University of Leeds, 2017. http://etheses.whiterose.ac.uk/18279/.

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Conventional B-mode ultrasound provides information on the anatomical features using acoustic impedance differences in the tissues. Ultrasound elastography uses a variety of techniques to map soft tissue elasticity. Tissue stiffness is a novel indicator of the tissue health, as many pathologies can alter the tissue stiffness such as cancer and fibrosis. Accurate and early detection of tissue elasticity can guide towards reliable diagnosis, and prognosis of diseases. The objectives of the research reported in this thesis are to implement strain and shear wave elastography techniques on the locally developed ultrasound systems, along with identifying current challenges in elastography and proposing solutions to develop ultrasound elastography as an accurate, and reliable clinical tool. In the first study, strain elastography was implemented and novel strain estimation quality assessment approach was proposed to discard noisy strain images. The second study proposed a shear wave generation method, called Dual Push Beam (DPB) to address challenges of the current shear wave elastography techniques, such as to reduce data acquisition events and to improve imaging depth. Further, the thesis includes the study which introduced a new angle-aligned shear wave tracking method, which improved displacement estimation quality for shear compounding. Final study designed seven different elastography schemes and investigated variations in elasticity estimation across the image by changing shear waves generation beam parameters such as aperture size and focal depth and its implication for liver fibrosis and breast cancer diagnosis.
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Grant, Tyler M. "Microstructural deformation of tendon." Thesis, University of Oxford, 2014. http://ora.ox.ac.uk/objects/uuid:0ad70415-af7a-4b97-a93a-d17a73d8ff44.

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Tendon disorders are painful, disabling, and a major healthcare problem, with millions of people affected by tendon injuries each year. Current treatment strategies are inadequate and knowledge of the underlying mechanobiological mechanisms is required to develop novel therapies. Although the tissue–level properties of tendon are well–documented there remains a lack of understanding of the deformation mechanisms of this complex tissue. Therefore, the aim of this thesis is to characterize the microstructural deformation of tendon through biological imaging, mechanical testing, and computational modeling. Emphasis is placed on the structure and function of elastic fibers in tendon, whose role is poorly understood. First, histology, immunohistochemistry, and multiphoton microscopy are used to characterize the organization of elastic fibers in healthy and damaged tendon providing detailed microstructural information on their morphology and location for the first time. Elastic fibers are found to have a sparse distribution in the extracellular matrix, but are highly concentrated in the endotenon sheath and pericellular matrix. Moreover, damaged specimens are found to have a severely disrupted elastic fiber network. Elastic fibers likely contribute to fascicular deformation mechanisms and the micromechanical environment of tenocytes, which are expected to be disrupted in damaged tendon. Second, mechanical testing and enzyme treatments are used to analyze the mechanical contribution of elastic fibers to tendon. Elastase is found to significantly affect the mechanical properties of the tissue and remove the elastin component of both tendon and a control collagen–elastin biomaterial. However, elastase is also found to degrade non–elastin structural molecules that may contribute to tendon mechanics. The mechanical changes associated with the elastase treatment suggest that elastic fibers do not contribute to the elastic recoil of tendon as previously hypothesized. Third, multiphoton microscopy in combination with a novel microtensile testing machine is used to observe the deformation of collagen fibrils and tenocytes in tissue exposed to load. Tissue displacement is consistent with a helical arrangement of fibrils and nuclei experience significant elongation under physiological conditions. These results suggest that a helical arrangement of fibrils is responsible for the nonlinear stress–strain response of tendon and that nuclei are prime candidates for sensing mechanical forces in tendon. Finally, computation modeling and structural imaging are used to generate a microstructural finite element model of tendon. A helical model with embedded pericellular matrix is able to reproduce the stress–strain response and cell–level deformation of the tissue. The pericellular matrix is found to amplify mechanical forces exposed to cells, which is required to initiate mechanobiological stimulation of tenocytes under physiological conditions. Therefore, the structure and composition of the PCM during health and disease is expected to significantly affect mechanobiological mechanisms of tendon. The work presented in this thesis has used new experimental methods to provide novel insight into the structure, function, and deformation mechanisms of tendon. The techniques and concepts developed are widely applicable to the study of collagenous tissues in health and disease. In particular, observations regarding the pericellular matrix may lead to the development of new tissue–engineered and pharmacological strategies for the treatment of tendon disorders.
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Shankara, Bhanu Fricke Brian A. "Determination of the elastic properties of cardiac tissue using scanning acoustic microscopy." Diss., UMK access, 2006.

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Thesis (M.S.)--School of Computing and Engineering. University of Missouri--Kansas City, 2006.
"A thesis in mechanical engineering." Typescript. Advisor: Brian A. Fricke. Vita. Title from "catalog record" of the print edition Description based on contents viewed Jan. 29, 2007. Includes bibliographical references (leaves 69-70). Online version of the print edition.
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Pascoe, Katie Clare, and n/a. "Heritable and early life growth factors affect arterial elastic tissue defect formation." University of Otago. Dunedin School of Medicine, 2006. http://adt.otago.ac.nz./public/adt-NZDU20070306.160709.

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A German pathologist first described defects in the elastic tissues of human arteries over one hundred years ago. Much evidence now supports the involvement of these elastic tissue defects (ETDs) in the initiation and progression of atherosclerosis, although this association is not well accepted. Recent research has determined that the migration of medial smooth muscle cells into the intima (and therefore the start of the atherosclerotic process) is initiated in an attempt to repair these defects and in addition, that there is a correlation between the extent of intimal thickening and the degree of elastic tissue disruption. The Brown Norway (BN) strain appears to have an increased predilection, having a significantly greater incidence of ETDs within the caudal and renal arteries and the abdominal aorta compared with other rat strains. These defects appear morphologically identical to those observed in the arteries of young humans. The purpose of this study was to determine the magnitude of the genetic and environmental components in the formation of these ETDs in the aorta. Previous studies have demonstrated that the spontaneous formation of elastic tissue defects in the abdominal aorta of the Brown Noway rat is a genetically inherited phenotype, passed from parent to offspring in an autosomal dominant manner. Following crossbreeding of the BN rat with four other strains (two hypertensive and two normotensive) it was determined that, although the inheritance mode of the ETD phenotype followed an autosomal dominant pattern, the expression or penetrance of this phenotype was reduced in F₁ all crossbred groups. Moreover, the early postnatal growth profile of the F₁ pups appeared to be differentially associated with defect formation. To further examine the relationship between aortic ETDs and birthweight, a well-studied model of in utero growth restriction was investigated in the BN rat. On day 18 of a 23-day gestation the uterine arteries were ligated, which resulted in offspring that were 14% smaller than un-operated control pups. This short-term insult resulted in significantly increased numbers of ETDs in growth-restricted animals at 8 weeks of age, an effect that was also observed in 16-week old males. The effect of in utero growth restriction on ETDs in the guinea pig and ApoE knockout mouse was also examined, to determine if ETDs (and subsequent early atherosclerotic events) may be influenced by the exposure to a growth-restricting event in utero. Despite this work leading to the novel characterisation of ETDs in the guinea pig aorta, the growth restricting surgery resulted in poor maternal and pup outcomes, which limited the conclusions that could be drawn from these studies. Furthermore, microarray techniques were employed to examine changes in aortic gene expression following growth restriction, by comparing amplified mRNA extracts from 8-week old growth restricted BN pup aortas with extracts from a group of average birthweight, un-operated BN pups. In combination, these studies propose both genetic inheritance and the in utero environment regulate elastic tissue defect phenotype, which in turn potentially affects the initiation and progression of early atherosclerosis.
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Aghaei-Ghareh-Bolagh, Behnaz. "Development of elastic biomaterials as high performance candidates for tissue engineering applications." Thesis, The University of Sydney, 2018. http://hdl.handle.net/2123/18789.

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Tropoelastin is an extracellular matrix protein, which polymerises to form elastin in the body. Due to its distinctive structural, mechanical and biological properties, tropoelastin provides a versatile building block for manufacturing biomaterials applicable to tissue engineering. Silk fibroin is a fibrous protein that has been widely used in biomedical applications because of its strength and durability. Hybrid protein polymers comprised of recombinant human tropoelastin and silk fibroin have favourable characteristics as implantable scaffolds in terms of mechanical and biological properties. In this thesis, a new class of elastic biomaterials based on tropoelastin and silk protein mixtures was developed. Tropoelastin and silk proteins were mixed and stabilised using a novel methodology and the fabrication, characterisation and potential applications of two different materials, a biocompatible film and a highly twisted yarn were explored. The fabricated tropoelastin-silk films were considered for potential corneal replacement applications. They performed similarly to the natural cornea in terms of optical clarity, refractive index, glucose permeability and mechanical properties. They showed a remarkable combination of physical properties encompassing flexibility, elasticity and suturability. Furthermore, the films supported both corneal epithelial and endothelial cell growth and function indicating that this new biomaterial may be suitable for corneal tissue regeneration. The fabricated tropoelastin-silk yarns were continuous, uniform, well twisted and strong. The yarns were easy to handle and could be used to fabricate woven meshes. The meshes supported cell growth and proliferation in vitro and were well-tolerated on in vivo implantation. The compatibility of the tropoelastin-silk yarns with textile technology processing methodologies makes them applicable for the manufacturing of a range of 3D materials suitable for tissue engineering applications.
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Dahal, Shataakshi. "Stem Cells Based Elastic Matrix Regeneration for Small Abdominal Aortic Aneurysms (AAAs) Repair." Cleveland State University / OhioLINK, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=csu1599137475237285.

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Dahal, Shataakshi. "Stem Cells Based Elastic Matrix Regeneration for Small Abdominal Aortic Aneurysms (AAAs) Repair." Cleveland State University / OhioLINK, 2009. http://rave.ohiolink.edu/etdc/view?acc_num=csu1599137475237285.

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Anderson, Courtney Rae. "The Rate of Intramuscular Tissue Temperature Reduction Between Wetted Ice with Elastic Wrap and Game Ready®." Thesis, North Dakota State University, 2020. https://hdl.handle.net/10365/31747.

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In recent years, the Game Ready® unit has become a popular cryotherapy modality to treat musculoskeletal injuries. The purpose of this study was to determine which cryotherapy method, wetted ice bag with elastic wrap or Game Ready®, decreases triceps surae intramuscular tissue temperature the most during a 30-minute treatment. The independent variables were the cryotherapy modalities (Game Ready® and wetted ice with elastic wrap) and time (baseline, 10, 20, and 30 minutes). Twenty patients participated in this study. Wetted ice with elastic wrap decreased tissue temperatures significantly greater than Game Ready® at 20 minutes (P = 0.03), and 30 minutes (P = 0.02). Since wetted ice with elastic wrap produced a greater and faster decline in intramuscular tissue temperature compared to Game Ready® on medium pressure, this cryotherapy modality should be utilized in the immediate care phase of the injury repair process.
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Books on the topic "Elastic tissue"

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Derek, Chadwick, Goode Jamie, Ciba Foundation, and Symposium on the Molecular Biology and Pathology of Elastic Tissues (1994 : Nairobi, Kenya), eds. The molecular biology and pathology of elastic tissues. Chichester: J. Wiley, 1995.

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Miller, James Stuart. A particle-based approach to elastic tissue modelling. Manchester: University ofManchester, 1996.

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Ladislas, Robert, and Hornebeck William 1946-, eds. Elastin and elastases. Boca Raton, Fla: CRC Press, 1989.

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Chadwick, Derek J., and Jamie A. Goode, eds. Ciba Foundation Symposium 192 - The Molecular Biology and Pathology of Elastic Tissues. Chichester, UK: John Wiley & Sons, Ltd., 1995. http://dx.doi.org/10.1002/9780470514771.

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Hasegawa, Hideyuki. Ultrasonic methods for measurement of small motion and deformation of biological tissues for assessment of viscoelasticity. New York, NY, USA: ASME, 2014.

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Sandberg, L. Elastin and Elastic Tissue. Springer London, Limited, 2012.

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Sandberg, L. Elastin and Elastic Tissue. Springer, 2012.

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Elastic Fiber Matrices: Biomimetic Approaches to Regeneration and Repair. CRC Press LLC, 2016.

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Elastic Fiber Matrices: Biomimetic Approaches to Regeneration and Repair. Taylor & Francis Group, 2016.

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Ramamurthi, Anand, and Chandrasekhar Kothapalli. Elastic Fiber Matrices: Biomimetic Approaches to Regeneration and Repair. Taylor & Francis Group, 2018.

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Book chapters on the topic "Elastic tissue"

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Davis, Elaine C., and Robert P. Mecham. "Elastic Fiber Organization." In Tissue Engineering, 26–34. Boston, MA: Birkhäuser Boston, 1993. http://dx.doi.org/10.1007/978-1-4615-8186-4_3.

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Krstić, Radivoj V. "Elastic Connective Tissue or Elastic Ligaments." In General Histology of the Mammal, 168–69. Berlin, Heidelberg: Springer Berlin Heidelberg, 1985. http://dx.doi.org/10.1007/978-3-642-70420-8_82.

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Krstić, Radivoj V. "Cartilaginous Tissue. Elastic Cartilage." In General Histology of the Mammal, 176–77. Berlin, Heidelberg: Springer Berlin Heidelberg, 1985. http://dx.doi.org/10.1007/978-3-642-70420-8_86.

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Krstić, Radivoj V. "Cartilaginous Tissue. Elastic Cartilage." In General Histology of the Mammal, 178–79. Berlin, Heidelberg: Springer Berlin Heidelberg, 1985. http://dx.doi.org/10.1007/978-3-642-70420-8_87.

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Yan, Jie, Cheng Tan, Qing Miao, Wei Liu, Dong-Lai Ma, Gang Wang, Yi-Ming Fan, et al. "Dermal Elastic Tissue Diseases." In Atlas of Skin Disorders, 205–20. Singapore: Springer Singapore, 2018. http://dx.doi.org/10.1007/978-981-10-8037-1_16.

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Uitto, Jouni, and Lasse J. Ryhänen. "Pathology of the Elastic Fibers." In Connective Tissue Disease, 399–422. Boca Raton: CRC Press, 2021. http://dx.doi.org/10.1201/9781003210016-21.

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Cleary, Edward G. "The Microfibrillar Component of the Elastic Fibers Morphology and biochemistry." In Connective Tissue Disease, 55–81. Boca Raton: CRC Press, 2021. http://dx.doi.org/10.1201/9781003210016-4.

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Phung, Thuy L., Teresa S. Wright, Crystal Y. Pourciau, and Bruce R. Smoller. "Diseases of Collagen and Elastic Tissue." In Pediatric Dermatopathology, 159–75. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-44824-4_7.

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Ophir, J., I. Cespedes, N. Maklad, and H. Ponnekanti. "Elastography: A Method for Imaging the Elastic Properties of Tissue in vivo." In Ultrasonic Tissue Characterization, 95–123. Tokyo: Springer Japan, 1996. http://dx.doi.org/10.1007/978-4-431-68382-7_7.

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Tran, Thanh Huyen, John Garner, Yourong Fu, Kinam Park, and Kang Moo Huh. "Biodegradable Elastic Hydrogels for Tissue Expander Application." In Handbook of Biodegradable Polymers, 217–36. Weinheim, Germany: Wiley-VCH Verlag GmbH & Co. KGaA, 2011. http://dx.doi.org/10.1002/9783527635818.ch9.

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Conference papers on the topic "Elastic tissue"

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Catheline, Stefan, Gabrielle Laloy-Borgna, Ali Zorgani, Bruno Giammarinaro, and Pol Grasland-Mongrain. "Complex elastic wave propagation in micro-elastography (Conference Presentation)." In Optical Elastography and Tissue Biomechanics VII, edited by Kirill V. Larin and Giuliano Scarcelli. SPIE, 2020. http://dx.doi.org/10.1117/12.2551486.

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Hamzavi, N., W. M. Tsang, and V. P. W. Shim. "Nonlinear elastic brain tissue model for neural probe-tissue mechanical interaction." In 2013 6th International IEEE/EMBS Conference on Neural Engineering (NER). IEEE, 2013. http://dx.doi.org/10.1109/ner.2013.6696134.

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Le, Victoria, Hiromi Yanagisawa, and Jessica Wagenseil. "Characterization of Cardiac Function and Arterial Mechanics During Early Postnatal Development in Fibulin-5 Null Mice." In ASME 2013 Summer Bioengineering Conference. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/sbc2013-14282.

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Fibulin-5 is an extracellular matrix protein that interacts with other proteins during a complex process that results in elastic fiber formation from the elastin precursor, tropoelastin [1]. Elastic fibers are an important component of tissues requiring elasticity, including large arteries, lungs and skin. In mice lacking fibulin-5 ( Fbln5−/−), these tissues contain disorganized elastic fibers and exhibit decreased elasticity [2]. The phenotype of Fbln5−/− mice is similar to that of humans with cutis laxa, a connective tissue disorder characterized by loose skin and narrow arteries with reduced compliance.
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Laloy-Borgna, Gabrielle, Stefan Catheline, and Ali Zorgani. "How good is the Voigt model for elastic wave propagation in micro-elastography?" In Optical Elastography and Tissue Biomechanics VIII, edited by Kirill V. Larin and Giuliano Scarcelli. SPIE, 2021. http://dx.doi.org/10.1117/12.2579249.

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Zhang, Hongqiu, Kirill V. Larin, Salavat R. Aglyamov, Chen Wu, and Manmohan Singh. "Quantifying lens elastic properties with optical coherence elastography as a function of intraocular pressure." In Optical Elastography and Tissue Biomechanics VI, edited by Kirill V. Larin and Giuliano Scarcelli. SPIE, 2019. http://dx.doi.org/10.1117/12.2510225.

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Maas, H., and U. Kuhnapfel. "Noninvasive measurement of elastic properties of living tissue." In 1999 European Control Conference (ECC). IEEE, 1999. http://dx.doi.org/10.23919/ecc.1999.7099693.

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Zvietcovich, Fernando, Gary R. Ge, Humberto Mestre, Michael Giannetto, Maiken Nedergaard, Jannick P. Rolland, and Kevin J. Parker. "Elastic characterization of heterogeneous tissues using longitudinal shear waves in optical coherence elastography (Conference Presentation)." In Optical Elastography and Tissue Biomechanics VII, edited by Kirill V. Larin and Giuliano Scarcelli. SPIE, 2020. http://dx.doi.org/10.1117/12.2545388.

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Moskowitz, Aaron J., Michael S. Richards, Larry S. Taylor, and Amy L. Lerner. "Modeling the Visco-Elastic Response of Bovine Liver Tissue." In ASME 2001 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2001. http://dx.doi.org/10.1115/imece2001/bed-23005.

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Abstract Liver tissue plays a role in many physiological systems and is characterized as a soft tissue. Changes in the perceived stiffness of the liver by palpation may indicate Cirrhosis or other liver ailments. New ultrasound techniques that use an applied force such as sonoelastography may aid physicians in diagnosis by providing a quantitative comparison of the mechanical properties for the tissue [1]. At this time, these mechanical characteristics remain to be fully defined. In this study, a four-parameter model composed of springs and dashpots has been used to describe the response of liver under unconfined creep compression tests.
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Kennedy, Kelsey M., Brendan F. Kennedy, Robert A. McLaughlin, Chris Ford, Mark B. Bush, and David D. Sampson. "Measuring elastic contrast in tissue using OCT needle probes." In SPIE BiOS, edited by James G. Fujimoto, Joseph A. Izatt, and Valery V. Tuchin. SPIE, 2013. http://dx.doi.org/10.1117/12.2007187.

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Strantza, M., O. Louis, D. Polyzos, F. Boulpaep, D. Van Hemelrijck, and D. G. Aggelis. "Measurement of elastic wave dispersion on human femur tissue." In SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, edited by Wolfgang Ecke, Kara J. Peters, Norbert G. Meyendorf, and Theodoros E. Matikas. SPIE, 2014. http://dx.doi.org/10.1117/12.2048393.

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Reports on the topic "Elastic tissue"

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Rogers, Peter H., James S. Martin, and Michael D. Gray. In Vivo Determination of the Complex Elastic Moduli of Cetacean Head Tissue. Fort Belvoir, VA: Defense Technical Information Center, March 2009. http://dx.doi.org/10.21236/ada495983.

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Rogers, Peter H., and Michael D. Gray. In Vivo Determination of the Complex Elastic Moduli of Cetacean Head Tissue. Fort Belvoir, VA: Defense Technical Information Center, September 2010. http://dx.doi.org/10.21236/ada541695.

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Rogers, Peter H., and Michael D. Gray. In Vivo Determination of the Complex Elastic Moduli of Cetacean Head Tissue. Fort Belvoir, VA: Defense Technical Information Center, September 2012. http://dx.doi.org/10.21236/ada573792.

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Rogers, Peter H., and Michael D. Gray. In Vivo Determination of the Complex Elastic Moduli of Cetacean Head Tissue. Fort Belvoir, VA: Defense Technical Information Center, September 2013. http://dx.doi.org/10.21236/ada598170.

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Rogers, Peter H., and Michael D. Gray. In Vivo Determination of the Complex Elastic Moduli of Cetacean Head Tissue. Fort Belvoir, VA: Defense Technical Information Center, September 2011. http://dx.doi.org/10.21236/ada598227.

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Rogers, Peter H., and Michael D. Gray. In Vivo Determination of the Complex Elastic Moduli of Cetacean Head Tissue. Fort Belvoir, VA: Defense Technical Information Center, September 2014. http://dx.doi.org/10.21236/ada617023.

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Pailino, Lia, Lihua Lou, Alberto Sesena Rubfiaro, Jin He, and Arvind Agarwal. Nanomechanical Properties of Engineered Cardiomyocytes Under Electrical Stimulation. Florida International University, October 2021. http://dx.doi.org/10.25148/mmeurs.009775.

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Engineered cardiomyocytes made of human-induced pluripotent stem cells (iPSC) present phenotypical characteristics similar to human fetal cardiomyocytes. There are different factors that are essential for engineered cardiomyocytes to be functional, one of them being that their mechanical properties must mimic those of adult cardiomyocytes. Techniques, such as electrical stimulation, have been used to improve the extracellular matrix's alignment and organization and improve the intracellular environment. Therefore, electrical stimulation could potentially be used to enhance the mechanical properties of engineered cardiac tissue. The goal of this study is to establish the effects of electrical stimulation on the elastic modulus of engineered cardiac tissue. Nanoindentation tests were performed on engineered cardiomyocyte constructs under seven days of electrical stimulation and engineered cardiomyocyte constructs without electrical stimulation. The tests were conducted using BioSoft™ In-Situ Indenter through displacement control mode with a 50 µm conospherical diamond fluid cell probe. The Hertzian fit model was used to analyze the data and obtain the elastic modulus for each construct. This study demonstrated that electrically stimulated cardiomyocytes (6.98 ± 0.04 kPa) present higher elastic modulus than cardiomyocytes without electrical stimulation (4.96 ± 0.29 kPa) at day 7 of maturation. These results confirm that electrical stimulation improves the maturation of cardiomyocytes. Through this study, an efficient nanoindentation method is demonstrated for engineered cardiomyocyte tissues, capable of capturing the nanomechanical differences between electrically stimulated and non-electrically stimulated cardiomyocytes.
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Boyer, J., J. R. Mourant, and I. J. Bigio. Monte Carlo investigations of elastic scattering spectroscopy applied to latex spheres used as tissue phantoms. Office of Scientific and Technical Information (OSTI), May 1995. http://dx.doi.org/10.2172/72913.

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Newton, Ronald, Joseph Riov, and John Cairney. Isolation and Functional Analysis of Drought-Induced Genes in Pinus. United States Department of Agriculture, September 1993. http://dx.doi.org/10.32747/1993.7568752.bard.

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Drought is a common factor limiting timber production in the U.S. and Israel. Loblolly (Pinus taeda) and alleppo pine (Pinus halepensis) seedling survival is reduced when out planted, and growth and reproduction are often hindered by periodic droughts during later stages of tree development. Molecular and gene responses to drought stress have not been characterized. The objectives were to characterize drought-induced gene clones from these pines, to determine the effects of a growth regulator on drought tolerance, ABA levels, and drought-induced gene expression in alleppo pine, and to develop procedures for loblolly pine transformation. Nearly 20 cDNA clones influenced by gradual, prolonged drought stress have been isolated. Many of these have been shown to be induced by drought stress, whereas several others are down-regulated. These are the first drought-induced genes isolated from a pine species. Two genomic clones (lp5-1 and lp3-1) have been sequenced and characterized, and each has been found to be associated with a gene family. Clone lp5 appears to code for a cell wall protein, and clone lp3 codes for a nuclear protein. The former may be associated with changing the elastic properties of the cell wall, while the latter may be involved in signal transduction and/or protection from desiccation in the nucleus. Clone lp3 is similar to a drought-induced gene from tomato and is regulated by ABA. Several DNA sequences that are specific to induction during growth-retardation in alleppo pine by uniconazole have been identified. The active DNA species is now being identified. Promoters from genomic clones, lp3 and lp5, have been sequenced. Both are functional when fused with the gus reporter gene and transferred to other plant tissues as well as responding to a simulated drought stress. Through exodeletion analysis, it has been established that the promoter ABRE element of lp3 responds to ABA and that drought-induction of lp3 expression may also involve ABA. Stable tobacco transformants carrying either the lp5 or the lp3 promoter fused to a reporter gus gene have been obtained. The lp5lgus fusion was expressed at several stages of tobacco development and differentiation including the reproductive stage. There was no difference in phenotype between the transformants and the wild type. Embryogenesis procedures were developed for slash pine, but attempts to couple this process with gene transfer and plantlet transformation were not successful. Transformation of pine using Agrobacterium appears tractable, but molecular data supporting stable integration of the Agrobacterium-transferred gene are still inconclusive.
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