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Expression Levels of MUC5AC and MUC5B in Airway Goblet Cells Are Associated with Traits of COPD and Progression of Chronic Airflow Limitation.
Int J Mol Sci
December 2024
Research Unit of Biomedicine and Internal Medicine, University of Oulu, 902 20 Oulu, Finland.
Mucins 5AC (MUC5AC) and 5B (MUC5B) are the major mucins providing the organizing framework for the airway's mucus gel. We retrieved bronchial mucosal biopsies and bronchial wash (BW) samples through bronchoscopy from patients with chronic obstructive pulmonary disease ( = 38), healthy never-smokers ( = 40), and smokers with normal lung function ( = 40). The expression of MUC5AC and MUC5B was assessed immunohistochemically.
View Article and Find Full Text PDFEndoscopic and Histological Characteristics of Gastric Cancer Detected Long After Eradication Therapy.
Cancers (Basel)
December 2024
Department of Clinicopathology, Hiraka General Hospital, Yokote 013-8610, Akita, Japan.
Background/objectives: Since 2013, eradication therapy for gastritis (-ET) has been covered by the National Health Insurance of Japan. Recently, the risk of post-eradication gastric cancer (pE-GC) has increased. pE-GC includes cancers that develop immediately and several years after -ET.
View Article and Find Full Text PDFNew Findings in Developmental Studies of Laryngeal Mound With a Reference to Its Attached Structures in Japanese Quail (Coturnix coturnix Japonica).
Microsc Res Tech
January 2025
Department of Anatomy and Embryology, Faculty of Veterinary Medicine, Assiut University, Assiut, Egypt.
The laryngeal mound (LM) formed the caudal part of the pharyngeal floor, which varied in position, shape, and length at different ages. This work aimed to study the morphogenesis of the LM in the embryonic and post hatching periods grossly, histologically, and by scanning electron microscopy using forty-eight Japanese quails. The LM primordia appeared on the 8th day of incubation as a raised elevation carried on a deep median symmetrical sulcus (glottis primordium).
View Article and Find Full Text PDFCell competition drives bronchiolization and pulmonary fibrosis.
Nat Commun
December 2024
Department of Medicine, Division of Pulmonary and Critical Medicine, Mayo Clinic, Rochester, MN, USA.
Idiopathic pulmonary fibrosis (IPF) is a progressive respiratory scarring disease arising from the maladaptive differentiation of lung stem cells into bronchial epithelial cells rather than into alveolar type 1 (AT1) cells, which are responsible for gas exchange. Here, we report that healthy lungs maintain their stem cells through tonic Hippo and β-catenin signaling, which promote Yap/Taz degradation and allow for low-level expression of the Wnt target gene Myc. Inactivation of upstream activators of the Hippo pathway in lung stem cells inhibits this tonic β-catenin signaling and Myc expression and promotes their Taz-mediated differentiation into AT1 cells.
View Article and Find Full Text PDFMorphological Analysis of the Digestive Tract of Cockatiels (Nymphicus hollandicus)-Oesophagus to Colorectum.
Anat Histol Embryol
January 2025
Patricia Romagnolli, Federal University of South Border, Superintendence of University Veterinary Hospital Unit, Veterinary Anatomy Sector, Paraná, Brazil.
Article Synopsis
- Cockatiels are popular pet birds that often need veterinary care, making it important to understand their digestive system for better treatment.
- This study involved dissecting six cockatiels to analyze and measure their digestive tract, revealing variability in size and specific structural features.
- Key findings included the structure of the oesophagus, stomach, and intestines, along with histological traits that showed similarities to other birds but also unique species-specific characteristics.
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