Aortic allograft -biological valves, Biology

Assignment Help:

Aortic Allograft (Homograft) :  In the earlier years fresh antibiotic preserved aortic allografts were tried. As the shelf life is limited, availability of all sizes at all times could not be guaranteed. At present cryopseservation is preferred. The valve is harvested under sterile conditions and is frozen using liquid nitrogen tissue culture medium containing 10 per cent dimethyl sulploxide (DMSO). It is stored a1 -180°C. They are durable and free from structural deterioration in 80 per cent of the patients at 15 years.

 


Related Discussions:- Aortic allograft -biological valves

Explain the transportation of vitamin a, Explain the Transportation of Vita...

Explain the Transportation of Vitamin A? The chylomicra and retinal-binding protein play an important role in the transport of retiuol. This chylomicra complex enters the lymp

Seismic waves, Earthquake creates seismic waves that travel through and aro...

Earthquake creates seismic waves that travel through and around the surface of the earth. Seismic waves are the waves of energy caused by sudden breaking of rocks during an earthqu

What is coarctation of aorta, What is Coarctation of Aorta ? More commo...

What is Coarctation of Aorta ? More common in males (3:l). Narrowing of aorta typically located near aortic attachment of ligamenturn arteriosum or PDA. It can be a localized

Define the foam mat drying method, Define the Foam Mat Drying Method? T...

Define the Foam Mat Drying Method? This process is a development of the vacuum puffing but, instead of employing a vacuum to foam the material, it is initially foamed by suitab

Ecological evidence of organisms to environment, Q. Ecological Evidence of ...

Q. Ecological Evidence of organisms to environment? Ecology is concerned with organisms in relationships to their environment. These relationships may be classified as biotic,

Phosphodiesterase inhibitors, Phosphodiesterase Inhibitors and Other Agents...

Phosphodiesterase Inhibitors and Other Agents Amrinone and Milrinone are prototypes of type III PDE inhibitors. They decrease the breakdown of cyclic AMP in the myocardium and i

Define objective of national programmes targeting infants, Define Objective...

Define Objective of national programmes targeting infants? These programmes have the objective of hinging down under-5 mortality. Under Integrated Child Development Services (I

Explain contractile proteins, Explain Contractile Proteins These protei...

Explain Contractile Proteins These proteins participate in contractile processes such as muscle proteins as well as those found in other  cells and tissues. In the latter, thes

What is immune memory, How can an organism that once underwent contact with...

How can an organism that once underwent contact with an antigen be immunized against future infections by the same agent? This phenomenon is known as immune memory . When an a

Define high density lipoproteins, Q. Define High Density Lipoproteins ? ...

Q. Define High Density Lipoproteins ? High density lipoproteins (HDL) are the smallest of the lipoprotein species and transport approximately 20 to 30 per cent of plasma choles

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd