We investigated the effects of salbutamol on the markers of epithelial function in a murine model of chronic allergic pulmonary inflammation by recording the ciliary beat frequency (CBF) and the transepithelial potential difference (PD) in vivo. Mice were sensitized and received four challenges of ovalbumin (OVA group) or 0.9% saline (control group). Forty-eight hours after the 4th inhalation, we observed eosinophilia in the bronchoalveolar lavage and epithelium remodeling with stored acid mucus in the OVA group (P < 0.001). No difference in the baseline CBF was noticed between the groups; however, the OVA group had a significantly lower baseline PD (P = 0.013). Salbutamol increased the CBF in all groups studied, and the dose response curve to salbutamol increased the PD in the OVA group from 10(-4)M to 10(-2)M. We suggest that salbutamol affects the CBF and the depth of the periciliary layer, which, in great part, determines the ability of the cilia to propel the mucus layer. This effect may have a positive impact on airway mucociliary transport in asthma and may have clinical implications.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/j.resp.2011.03.016 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Explore Alteration of Lung and Gut Microbiota in a Murine Model of OVA-Induced Asthma Treated by CpG Oligodeoxynucleotides.
J Inflamm Res
January 2025
Department of Geriatric Respiratory and Critical Care, The First Affiliated Hospital of Anhui Medical University, Anhui Geriatric Institute, Hefei, Anhui, People's Republic of China.
Aim: We sought to investigate the impact of CpG oligodeoxynucleotides (CpG-ODN) administration on the lung and gut microbiota in asthmatic mice, specifically focusing on changes in composition, diversity, and abundance, and to elucidate the microbial mechanisms underlying the therapeutic effects of CpG-ODN and identify potential beneficial bacteria indicative of its efficacy.
Methods: HE staining were used to analyze inflammation in lung, colon and small intestine tissues. High-throughput sequencing technology targeting 16S rRNA was employed to analyze the composition, diversity, and correlation of microbiome in the lung, colon and small intestine of control, model and CpG-ODN administration groups.
Comparison of success rates in early stages of in vitro fertilization (IVF) in women with and without endometriosis.
Narra J
December 2024
Department of Obstetrics and Gynecology, Faculty of Medicine, Universitas Airlangga, Surabaya, Indonesia.
Endometriosis remains a significant challenge for reproductive-aged women and is frequently associated with infertility. Although in vitro fertilization (IVF) is used to address infertility in women with endometriosis, its effectiveness in this context is still debated, particularly in developing countries such as Indonesia, where IVF remains a major challenge. The aim of this study was to investigate the success rates of early stages of IVF in women with and without endometriosis.
View Article and Find Full Text PDFWho freezes her eggs and why? psychological predictors, reasons, and outcomes of social egg freezing.
Reprod Biol Endocrinol
January 2025
Department of Clinical Psychology and Psychotherapy, University of Zurich, Binzmühlestrasse 14, Zurich, 8050, Switzerland.
Background: Despite the growing use of social egg freezing (SEF), research focusing on its psychological aspects is lacking. This study aimed to investigate possible psychological predictors, reasons, and outcomes of SEF in German-speaking countries.
Methods: The cross-sectional study included 1,131 women (average age 31 years) who had never used medical egg freezing.
Analysis of DNA cox1 barcoding revealed novel haplotype in Schistosoma haematobium isolated from Western Sudan.
Sci Rep
January 2025
Faculty of Veterinary Medicine, University of Khartoum, Khartoum, Sudan.
Schistosomiasis poses a significant global health threat, particularly in tropical and subtropical regions like Sudan. Although numerous epidemiological studies have examined schistosomiasis in Sudan, the genetic diversity of Schistosoma haematobium populations, specifically through analysis of the mtcox1 gene, remains unexplored. This study aimed to investigate the risk factors associated with urogenital schistosomiasis among school pupils in El-Fasher, Western Sudan, as well as the mtcox1 genetic diversity of human S.
View Article and Find Full Text PDFBaicalein attenuates ovalbumin-induced allergic rhinitis through the activation of nuclear receptor subfamily 4 group a member 1.
Immunol Res
January 2025
Department of Otolaryngology, Qingdao Traditional Chinese Medicine Hospital (Qingdao Hiser Hospital), Qingdao Hiser Hospital Affiliated of Qingdao University, Qingdao, 266033, Shandong, People's Republic of China.
Baicalein, one of the major active flavonoids found in Scutellaria baicalensis, has been revealed to exhibit potent anti-inflammatory properties in allergic airway inflammation. This study aimed to explore the role of baicalein and its relevant mechanism in the treatment of allergic rhinitis (AR). The bioinformatics tools were used to predict the targets of baicalein and AR-related genes.
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!