Ileal Interposition
Ileal Interposition - Related Videos
12:39
Implantation of Inferior Vena Cava Interposition Graft in Mouse Model
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Cited by 24 •
2014
To improve our knowledge of cellular and molecular neotissue formation, a murine model of the TEVG was recently developed. The grafts were implanted as infrarenal vena cava interposition grafts in C57BL/6 mice. This model achieves similar results to those achieved in our clinical investigation, but over a far shortened time-course.
04:58
Mouse Ileal Loop Model: A Surgical Model to Study Intestinal Permeability in the Mouse
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2025
This video demonstrates the generation of an ileal loop model to study intestinal permeability in a mouse model. This method provides a live model to understand the epithelial barrier function and consequent immune response.
04:35
Murine Ileal Resection Model: Studying Ileectomy-Induced Bile Metabolism in Murine Model
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2023
This video describes the detailed protocol for intestinal resection in a murine model. This technique provides insights into ileectomy-induced bile malabsorption, overaccumulation, and toxicity in the mouse intestine.
07:08
Optimization of Synthetic Proteins: Identification of Interpositional Dependencies Indicating Structurally and/or Functionally Linked Residues
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Cited by 1 •
2015
Synthetic protein sequences based on consensus motifs typically ignore co-evolving residues, that imply interpositional dependencies (IPDs). IPDs can be essential to activity, and designs that disregard them may result in suboptimal results. This protocol uses StickWRLD to identify IPDs and help inform rational protein design, resulting in more efficient results.
15:21
Training a Sophisticated Microsurgical Technique: Interposition of External Jugular Vein Graft in the Common Carotid Artery in Rats
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Cited by 9 •
2012
Neointimal hyperplasia is the primary cause of stenosis in arterialized veins. We propose a new protocol whereby the right external jugular vein is grafted using the cuff technique in the common carotid artery of Sprague Dawley rats. The survival rate was 100 % at the time point of sacrifice.
FAQs
The key variable is timing: ileal tissue encounters nutrients earlier than it normally would, changing the intestinal signals released during digestion. This altered timing can increase attention to incretins such as GLP-1 and peptide YY, which are linked to insulin secretion, appetite, and glucose regulation. The procedure therefore helps researchers examine how nutrient location and timing influence metabolism.
GLP-1 and peptide YY are intestinal hormones that connect nutrient exposure with metabolic responses. GLP-1 can influence insulin secretion, while peptide YY is associated with appetite regulation. Measuring or interpreting these signals helps investigators determine how repositioned ileal tissue may affect glucose control and eating-related pathways in studies of obesity and type 2 diabetes.
The anatomical change functions as a model for testing whether the position of intestinal tissue affects metabolism. Instead of viewing glucose regulation only as a pancreatic or systemic process, researchers can examine how gut anatomy modifies signaling after nutrients arrive. This perspective supports investigation of the intestine as an active contributor to metabolic control.
Research has focused primarily on obesity and type 2 diabetes because both conditions involve clinically important questions about appetite, insulin secretion, and glucose regulation. By altering when ileal tissue is exposed to nutrients, investigators can study whether gut-derived signaling relates to these metabolic features and use the findings to inform broader disease mechanisms.
The procedure relocates a segment of distal ileum to a more proximal position in the small intestine. A notable feature is that it can often be performed without removing part of the gastrointestinal tract. That distinction allows studies to focus on the consequences of earlier ileal nutrient exposure rather than treating intestinal removal as the primary experimental variable.
Ileal interposition has value as a research model because it links gastrointestinal anatomy with metabolic physiology. Findings from studies of the operation have informed investigation of both surgical and non-surgical approaches to metabolic disease. Its broader contribution is showing how controlled anatomical changes can help identify gut-based pathways relevant to obesity and type 2 diabetes.