Aortic Wall Degradation
Aortic Wall Degradation - Related Videos
12:17
Full-root Aortic Valve Replacement by Stentless Aortic Xenografts in Patients with Small Aortic Roots
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Cited by 4 •
2017
Full-root aortic valve replacement by stentless aortic xenograft is a viable option in patients with small aortic roots. We describe, a technique for the full-root implantation of stentless aortic xenografts, with emphasis on the management of the proximal suture line and coronary anastomoses, and discuss its limitations and alternative options.
09:12
Aortic Ring Assay
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Cited by 42 •
2009
Angiogenesis, the sprouting of blood vessels from pre-existing vasculature, is associated with both natural and pathological processes. Here we demonstrate an aortic ring assay that allows angiogenic potentiators and inhibitors to be directly added to aortic rings in culture. Sprouting and neovessel outgrowth can be determined by inspecting the aortic rings over a period of 6-12 days.
02:58
Regulated Protein Degradation
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2020
It is vital to regulate the activity of enzymatic as well as non-enzymatic proteins inside the cell. This can be achieved either through creating a balance between their rate of synthesis and degradation or regulating the intrinsic activity of the protein. Both these regulation mechanisms play an essential role in the normal functioning of cells. Protein degradation plays two important roles in the cells. It helps to protect cells from misfolded or damaged proteins before they lead to a...
02:11
Proteins: From Genes to Degradation
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2020
Within a biological system, the DNA encodes the RNA, and the nucleotide sequence in the RNA further defines the amino acid sequence in the protein. This is referred to as “The Central Dogma of Molecular Biology” - a term coined by Francis Crick. Central dogma is a firm principle in biology that defines the flow of genetic information within any life form. The two fundamental steps in central dogma are - transcription and translation. Transcription is the synthesis of RNA molecules by RNA...
08:51
A New Murine Model of Endovascular Aortic Aneurysm Repair
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Cited by 3 •
2013
Histological and biochemical modifications after aneurysm endograft exclusion are still unclear. We describe a new model of endograft implantation on a murine aneurysm. Through thrombus analysis with and without persistant circulating blood stream interface, and new endovascular biomaterials evaluation, this model will help to better understand endovascular aneurysm exclusion pathobiology.
FAQs
Progression occurs when inflammatory signaling and proteolytic activity remove extracellular matrix faster than vascular cells can restore it. This imbalance is especially important for elastin and collagen, because their disruption reduces the wall’s ability to maintain both structural strength and elasticity. Studying the balance between degradation and repair helps explain why weakening can continue as vascular disease advances.
Elastin and collagen provide key structural properties to the aortic wall, while matrix metalloproteinases are proteolytic enzymes capable of breaking down extracellular matrix components. When inflammatory signaling increases proteolytic activity, degradation may outpace cellular repair. Examining these components together allows researchers to connect molecular changes with declining wall integrity rather than treating weakening as a purely mechanical problem.
Loss of extracellular matrix support reduces the wall’s strength and elasticity, making it less able to withstand the stresses associated with the aorta’s structure and function. Progressive weakening can therefore accompany aortic dilation and aneurysm formation. In severe disease, the damaged wall may be associated with dissection or rupture, linking microscopic matrix disruption to major structural complications.
Researchers connect cellular and molecular mechanisms with changes in aortic structure and disease progression. Their investigations can focus on inflammatory signaling, proteolytic enzymes, extracellular matrix disruption, and the balance between breakdown and repair. This multilevel approach helps relate biological events to clinically important outcomes, including dilation and aneurysm development, while guiding the search for measurable indicators.
Studying the degradation process can support development of imaging markers, risk assessments, and targeted therapies. Imaging markers may help represent structural disease-related changes, while risk assessments can organize information about progression and potential complications. Mechanistic findings also identify biological processes that may be considered when designing therapies aimed at limiting matrix disruption or its consequences.
The topic provides a connection between biology at the cellular and molecular levels and the macroscopic behavior of the aorta. Inflammatory signaling, enzyme activity, matrix loss, and incomplete repair can be studied as interacting processes rather than isolated findings. This perspective supports research into how tissue changes precede or accompany dilation, aneurysm formation, dissection, and rupture.