Unlabelled: In this paper we want to study the changes in the expression of cell proliferation factor Ki67 in the respiratory epithelium of patients diagnosed with bronchial asthma.
Material And Methods: Twenty one patients with bronchial asthma having different degrees of severity (according to GINA 2002) have been included in our study. Fragments of bronchial mucosa were obtained through fiberbronchoscopy, prepared for histologic examination in view of immune marking with anti-Ki67 antibodies.
Results: Microscopic examination revealed a progressive increase in the number of Ki-67 cells in the respiratory epithelium corresponding to the severity of asthma (following FEV1 parameters).
Conclusion: The increase in the cell proliferation in the respiratory epithelium represents one of the mechanisms that can help in rebuilding the epithelial structure destroyed by the chronic irritation.
Download full-text PDF |
Source |
|---|
Publication Analysis
Top Keywords
Similar Publications
Ectopic Salivary Duct Cyst in the Median Mandible: A Case Report with Radiological, Immunohistochemical and Genetic Studies.
Int J Surg Pathol
January 2025
Division of Pathology, Department of Diagnostic and Therapeutic Sciences, Meikai University School of Dentistry, Saitama, Japan.
Median mandibular cyst is defined as an odontogenic cyst in a rare midline location. In spite of this definition, there have been two reports of a peculiar lesion, so-called "ciliated" median mandibular cyst associated with vital teeth, the origin of which cannot be explained in terms of odontogenic epithelium multipotentiality. We describe a thorough profile of an additional example.
View Article and Find Full Text PDFThe different response of PM stimulated nasal epithelial spheroids in control, asthma and COPD groups.
Respir Res
January 2025
Department of Internal Medicine, Pulmonary Diseases and Allergy, Medical University of Warsaw, Banacha 1a, Warsaw, 02-097, Poland.
Background: Pathobiology of asthma and chronic obstructive pulmonary disease (COPD) is associated with changes among respiratory epithelium structure and function. Increased levels of PM from urban particulate matter (UPM) are correlated with enlarged rate of asthma and COPD morbidity as well as acute disease exacerbation. It has been suggested that pre-existing pulmonary obstructive diseases predispose epithelium for different biological response than in healthy airways.
View Article and Find Full Text PDFComplicated foregut duplication cyst presenting as broncho-oesophageal fistula.
BMJ Case Rep
January 2025
Radiodiagnosis, All India Institute of Medical Sciences, New Delhi, Delhi, India.
Oesophageal duplication cysts are a subtype of foregut cysts, associated with the presence of ectopic gastric mucosa. Gastric acid secreted by this mucosa can lead to complications. We report one such unusual case of complication leading to the formation of broncho-oesophageal fistula in a duplication cyst.
View Article and Find Full Text PDFProfiling epithelial viral receptor expression in amniotic membrane and nasal epithelial cells at birth.
Placenta
December 2024
Telethon Kids Institute, Wal-yan Respiratory Research Centre, Perth, 6009, Western Australia, Australia.
Introduction: Children with wheeze and asthma present with airway epithelial vulnerabilities, such as impaired responses to viral infection. It is postulated that the in utero environment may contribute to the development of airway epithelial vulnerabilities. The aims of the study were to establish whether the receptors for rhinovirus (RV), respiratory syncytial virus (RSV) and severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) are expressed in the amniotic membrane and whether the pattern of expression is similar to newborn nasal epithelium.
View Article and Find Full Text PDFWe compared virus replication and host responses in human alveolar epithelium infected with highly pathogenic avian influenza (HPAI) A(H5N1) viruses. A/Vietnam/1203/2004 replicated most efficiently, followed by A/Texas/37/2024, then A/bovine/Ohio/B24OSU-342/2024. Induction of interferon-stimulated genes was lower with A/Texas/37/2024 and A/bovine/Ohio/B24OSU-342/2024, which may indicate a reduced disease severity of those viruses.
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!