The lipid composition of membrane of the small intestine brush border was studied 1, 2, 3 and 6 months after the whole-body fractionated gamma irradiation of the one-month-old rats of 80 g weight with a dose of 6 Gy (2 Gy x 3 at a week intervals). Three months after exposure the amount of cholesterol, total phospholipids, phosphatidylcholine, phosphatidyl-ethanolamine in brush border membrane was the same as in control. The role of phospholipids and cholesterol catabolism suppression in membrane regulatory function disturbances after irradiation is discussed.
Download full-text PDF |
Source |
|---|
Publication Analysis
Top Keywords
Similar Publications
Regeneration of Vascular Endothelium in Different Large Vessels.
Int J Mol Sci
January 2025
Department of Cell Biology, IFOM ETS-The AIRC Institute of Molecular Oncology, Via Adamello, 16, 20139 Milan, Italy.
The regeneration of endothelial cells (ECs) lining arteries, veins, and large lymphatic vessels plays an important role in vascular pathology. To understand the mechanisms of atherogenesis, it is important to determine what happens during endothelial regeneration. A comparison of these processes in the above-mentioned vessels reveals both similarities and some significant differences.
View Article and Find Full Text PDFPotential of Lambda-Cyhalothrin for Controlling the Black Armyworm Spodoptera cosmioides (Walker) (Lepidoptera: Noctuidae): Toxicity and Midgut Histopathological Effects.
Neotrop Entomol
January 2025
Depto de Biologia Geral, Univ Federal de Viçosa, Viçosa, Minas Gerais, Brazil.
Caterpillars of the genus Spodoptera are the main pests in soybean and cotton crops and Spodoptera cosmioides causes more severe losses than other caterpillars in these agricultural crops. However, there are few recommended insecticides for controlling this pest. Lambda-cyhalothrin is a pyrethroid used to control a wide spectrum of arthropods including lepidopterans.
View Article and Find Full Text PDFHistological Changes of the Mucosal Epithelium in the Chicken Intestine during Pre- and Post-Hatching Stages.
J Poult Sci
January 2025
Laboratory of Animal Functional Anatomy (LAFA), Faculty of Agriculture, Shinshu University, Kami-ina, Nagano 399-4598, Japan.
This study clarified the histological changes in the mucosal epithelium of the chicken intestine during the pre- and post-hatching stages. The duodenum, jejunum, ileum, and colorectum were collected from embryos at 15, 17, 18, 19, and 21 days of incubation and from chicks at 1 and 3 days after hatching. Paraffin sections prepared from tissue samples were stained with periodic acid-Schiff followed by alcian blue for histological analysis and to detect goblet cells.
View Article and Find Full Text PDFSelective toxicity of a novel antimicrobial peptide Acidocin 4356 against Pseudomonas aeruginosa and Acinetobacter baumannii in human cell-based in vitro infection models.
Sci Rep
January 2025
Department of Energy & Environmental Biotechnology, National Institute of Genetic Engineering and Biotechnology (NIGEB), Tehran, Iran.
Prior studies examined Acidocin 4356's antibacterial and antivirulence effects against Pseudomonas aeruginosa, including cell membrane penetration abilities. Building on prior research, an in-vitro co-culture of human cells was established to evaluate the selectivity of Acidocin (ACD) by concurrently cultivating human cells and bacterial pathogens. This study evaluated the antibacterial effectiveness of ACD against Acinetobacter baumannii and Pseudomonas aeruginosa.
View Article and Find Full Text PDFBiofabricated 3D Intestinal Models as an Alternative to Animal-Based Approaches for Drug Toxicity Assays.
Tissue Eng Regen Med
January 2025
Biosciences National Laboratory (LNBio), Brazilian Center for Research in Energy and Materials (CNPEM), Campinas, Sao Paulo, 13083-100, Brazil.
Background: The main challenge in new drug development is accurately predicting the human response in preclinical models.
Methods: In this study, we developed three different intestinal barrier models using advanced biofabrication techniques: (i) a manual model containing Caco-2 and HT-29 cells on a collagen bed, (ii) a manual model with a Caco-2/HT-29 layer on a HDFn-laden collagen layer, and (iii) a 3D bioprinted model incorporating both cellular layers. Each model was rigorously tested for its ability to simulate a functional intestinal membrane.
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!