Histological mapping of healing of the small and large intestine - a quantitative study in a porcine model

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11140%2F23%3A10458527" target="_blank" >RIV/00216208:11140/23:10458527 - isvavai.cz</a>

Alternative codes found

RIV/00216208:11120/23:43925326

Result on the web

<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=0J_hdwFME9" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=0J_hdwFME9</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.aanat.2023.152095" target="_blank" >10.1016/j.aanat.2023.152095</a>

Result language

angličtina

Original language name

Histological mapping of healing of the small and large intestine - a quantitative study in a porcine model

Original language description

Background: Gastrointestinal anastomoses are performed in many patients every year. The pathogenesis of aberrant anastomotic healing and the causes of intestinal leakage are not fully understood. The present study gathered and critically evaluated histological quantitative data to deepen current knowledge of anastomotic healing in the small and large intestine and its complications and outline the options for further experimental in vivo research in large porcine animal models.Methods: Three groups of porcine intestinal anastomoses were compared: small intestine without defect (SI; n=7), small intestine with an additional defect (SID; n=8), and large intestine (LI; n=7). Multilevel sampling (2,112 micrographs) and stereological methods were used for histological quantification of proliferation (Ki-67 immunohistochemistry), neutrophil infiltration (myeloperoxidase staining), vascularity (von Willebrand factor) and type I and type III collagen formation (picrosirius red in polarized light) within the region of anastomosis compared to the region outside of anastomosis.Results: Quantitative histological evaluation revealed the following results. i) Proliferation, vascularity, and collagen, but not neutrophils, were more highly expressed within the anastomosis than outside of the anastomosis region. ii) Porcine large and small intestine were not interchangeable based on histological evaluation of surgical experiments. The presence or absence of an additional experimental defect strongly affected healing, but the healing seemed complete after 21 days. iii) The microscopic structure of small intestine segments was more affected by their proximity to the anastomosis than the structure of large intestine segments.Conclusions: Histological quantification was more laborious than the previously used semiquantitative scoring system evaluating the healing rate of intestinal anastomoses, but it provided detailed maps of biological processes within individual intestine layers. The primary data collected in the study are open and available for power sample analyses to calculate the minimum numbers of samples justified in future experiments on porcine intestines. The porcine intestine is a promising animal model with translational potential for human surgery.

Czech name

—

Czech description

—

Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

30106 - Anatomy and morphology (plant science to be 1.6)

Project

<a href="/en/project/NU20J-08-00009" target="_blank" >NU20J-08-00009: Prevention of intestinal anastomotic leakage and postoperative adhesions by using nanofibrous biodegradable materials</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2023

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Annals of Anatomy

ISSN

0940-9602

e-ISSN

1618-0402

Volume of the periodical

249

Issue of the periodical within the volume

August

Country of publishing house

DE - GERMANY

Number of pages

14

Pages from-to

1-14

UT code for WoS article

001054812200001

EID of the result in the Scopus database

2-s2.0-85151621250