Objective: To study the usability of pulmonary tissue flap in the reconstruction of the thoracic trachea.
Methods: Over half perimeter anterior and posterior wall and 6 to 8 tracheal cartilagious rings of dog trachea were resected. The nickel-titanium alloy mesh stent was placed inside the lumen for repair of the defect of the tracheal wall by nearby pulmonary tissue flap with the vascularized segment. The dogs were killed from 2 months to 12 months after operation. Specimens were taken and observed under light and electron microscope. Clinically, 4 patients were treated by this way operation [right common tracheal scarred stenosis and atresia (1), mixed cancerization in the lower part of the common trachea (1) and left common tracheal carcinoid (2)].
Results: No stenosis and granulation tissue were observed in the prosthetic lumen, in which there was comparative continuous stratified ciliated columnar epithelium. All patients recovered respiratory function.
Conclusion: Pulmonary tissue flap is a promising prosthesis of thoracic tracheal reconstruction.
Download full-text PDF |
Source |
|---|
Publication Analysis
Top Keywords
Similar Publications
Tension-induced organelle stress: an emerging target in fibrosis.
Trends Pharmacol Sci
January 2025
Department of Surgery, University of California, San Francisco, San Francisco, CA, USA; Center for Bioengineering and Tissue Regeneration, University of California, San Francisco, San Francisco, CA, USA; UCSF Helen Diller Comprehensive Cancer Center, University of California, San Francisco, San Francisco, CA, USA; Department of Radiation Oncology, Eli and Edythe Broad Center for Regeneration Medicine and Stem Cell Research, University of California, San Francisco, San Francisco, CA, USA.
Fibrosis accounts for approximately one-third of disease-related deaths globally. Current therapies fail to cure fibrosis, emphasizing the need to identify new antifibrotic approaches. Fibrosis is defined by the excessive accumulation of extracellular matrix (ECM) and resultant stiffening of tissue stroma.
View Article and Find Full Text PDFEndothelial cell (EC)-specific CTGF/CCN2 Expression Increases EC Reprogramming and Atherosclerosis.
Matrix Biol
January 2025
Department of Surgery, Emory University, Atlanta, GA, USA; Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, Atlanta, GA, USA; Research Services, Atlanta VA Medical Center, Decatur, GA, USA. Electronic address:
Arterial endothelial cells (ECs) reside in a complex biomechanical environment. ECs sense and respond to wall shear stress. Low and oscillatory wall shear stress is characteristic of disturbed flow and commonly found at arterial bifurcations and around atherosclerotic plaques.
View Article and Find Full Text PDF2-Ethylhexyl diphenyl phosphate induces lung oxidative stress and pyroptosis in chicks.
Sci Total Environ
January 2025
College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, China; Key Laboratory of Provincial Education, Department of Heilongjiang for Common Animal Disease Prevention and Treatment, Harbin 150030, China. Electronic address:
2-Ethylhexyl diphenyl phosphate (EHDPHP) is a widely used organophosphorus flame retardant and plasticizer easily released into the environment. Its biological toxicity is of great concern. The lung is considered a possible target organ for EHDPHP, but currently, there are limited studies on the biotoxicity of EHDPHP in poultry lungs.
View Article and Find Full Text PDFIsogenic Transplantation of Hybrid Artificial Pleural Tissue Consisting of Rat Cells and Polyglycolic Acid Nanofiber Sheet Induces Restoration of Mesothelial Defects in Rat Model.
Artif Organs
January 2025
Department of Thoracic and Cardiovascular Surgery, Hirosaki University Graduate School of Medicine, Hirosaki, Aomori, Japan.
Background: Impairment of the visceral pleura following thoracic surgery often leads to air leaks and intrathoracic adhesions. For preventing such complications, mesothelial cell proliferation at the pleural defects can be effective. To develop new materials for pleural defects restoration, we constructed a hybrid artificial pleural tissue (H-APLT) combining polyglycolic acid (PGA) nanofiber sheets with a three-dimensional culture of mesothelial cells and fibroblasts and evaluated its therapeutic efficacy in a rat pleural defect model.
View Article and Find Full Text PDFVaccination against SARS-CoV-2 provides low-level cross-protection against common cold coronaviruses in mouse and non-human primate animal models.
J Virol
January 2025
Sunnybrook Research Institute, Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada.
The common cold coronaviruses are a source of ongoing morbidity and mortality particularly among elderly and immunocompromised individuals. While cross-reactive immune responses against multiple coronaviruses have been described following severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection and vaccination, it remains unclear if these confer any degree of cross-protection against the common cold coronaviruses. A recombinant fowl adenovirus vaccine expressing the SARS-CoV-2 spike protein (FAdV-9-S19) was generated, and protection from SARS-CoV-2 challenge was shown in K18-hACE2 mice.
View Article and Find Full Text PDFWant 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!