The effect of storage solutions, gene therapy, and antiproliferative agents on endothelial function and saphenous

Walid Ben Ali1, Ismail Bouhout2, Louis P Perrault3

  • 1Department of Cardiac Surgery, Montreal Heart Institute, Quebec, Canada.

Insights

Vein graft failure after coronary artery bypass surgery is linked to endothelial cell damage. Optimal preservation solutions can limit this damage, yet buffered solutions are underutilized compared to normal saline.

Area of Science:

  • Cardiovascular Surgery
  • Vascular Biology
  • Biomaterials Science

Background:

  • Vein graft failure is a significant complication following coronary artery bypass graft (CABG) operations.
  • Endothelial cell (EC) integrity loss initiates graft failure.
  • Current preservation methods may not optimize graft viability.

Purpose of the Study:

  • To review existing literature on vein graft preservation solutions.
  • To identify the most effective storage solutions for saphenous vein grafts.
  • To compare the efficacy of buffered solutions versus standard normal saline.

Main Methods:

  • Systematic literature review of experimental and clinical studies.
  • Analysis of studies investigating different preservation solutions for vein grafts.
  • Evaluation of endothelial cell integrity and graft survival data.

Main Results:

  • Experimental and clinical evidence supports the use of buffered solutions for vein graft preservation.
  • Buffered solutions demonstrate superior preservation of endothelial cell integrity compared to normal saline.
  • Normal saline remains the most commonly used preservation solution despite evidence favoring alternatives.

Conclusions:

  • Optimizing vein graft preservation solutions is critical to reduce post-CABG failure.
  • Buffered solutions represent a superior option for maintaining graft viability.
  • Clinical practice should consider evidence-based recommendations for vein graft storage solutions.

Related Concept Videos

Gene Therapy00:59

Gene Therapy

Gene therapy is a technique where a gene is inserted into a person’s cells to prevent or treat a serious disease. The added gene may be a healthy version of the gene that is mutated in the patient, or it could be a different gene that inactivates or compensates for the patient’s disease-causing gene. For example, in patients with severe combined immunodeficiency (SCID) due to a mutation in the gene for the enzyme adenosine deaminase, a functioning version of the gene can be...
27.7K
Storage01:23

Storage

A schema is a mental framework that helps individuals organize and interpret information. Schemata, formed from previous experiences, influence how we process new information: how we encode it, the inferences we make, and how we retrieve it. For instance, a schema for what a typical classroom looks like might include desks, a teacher's desk, a whiteboard, and students in such an environment. This expectation helps us quickly understand and navigate new classrooms without needing to analyze...
418
Composition of Polyprotic Acid Solutions as a Function of pH01:19

Composition of Polyprotic Acid Solutions as a Function of pH

Polyprotic acids of the type H2M constitute two ionizable protons. As a result, on titration with a base, they exhibit two equivalence points in the titration curve. During titration, the species H2M, HM−, and M2− will be present in the solution at different points. The fractions of H2M, HM−, and M2− present at the various instances of the titration are denoted by α0, α1, and α2, respectively.
A graph with the alpha values is plotted against the volume of...
870
Gene Families01:57

Gene Families

Gene families consist of groups of genes proposed to have originated from a common ancestor. Typically these arise through events in which a gene or genes are mistakenly duplicated during cell division. Unlike their parent genes (which are subject to selection pressure to maintain function), these gene copies do not need to preserve their sequences and may evolve at a relatively faster rate.
Occasionally these regions can be adapted to take on new roles within the organism, becoming novel genes...
10.0K
Loss of Tumor Suppressor Gene Functions01:12

Loss of Tumor Suppressor Gene Functions

Tumor suppressor genes are normal genes that can slow down cell division, repair DNA mistakes, or program the cells for apoptosis in case of irreparable damage. Hence, they play an essential role in preventing the proliferation of damaged cells.
When the tumor suppressor genes develop mutations or are lost, cells start growing out of control, leading to cancer. However, a single functional copy of the tumor suppressor gene is enough for the cells to maintain their normal functions and cell...
6.1K
Veins01:17

Veins

Veins are an integral part of our circulatory system, serving as the blood vessels that transport blood from all body regions to the heart. They are a network of hollow tubes that carry blood low in oxygen from the body's cells back to the heart for reoxygenation. Veins are crucial for maintaining the body's overall fluid balance and the continuous circulation of blood.
Structure of Veins:
The structure of veins is specifically designed to assist in the low-pressure transportation of...
9.0K