A 47-year-old woman complained of coughing for over 5 weeks. The coughing was not relieved by bronchodilators (theophylline, beta 2-adrenoceptor agonist; procaterol), anti-allergic agents (azelastine, ozagrel), an inhaled corticosteroid (beclomethasone dipropionate), a macrolide antibiotic (clarithromycin), or codeine phosphate. A peptide leukoriene receptor antagonist (pranlukast) completely abolished the coughing and increased the cough threshold to capsaicin. The patient was given a diagnosis of cough-variant asthma because her sputum contained many eosinophils and her airway responsiveness to methacholine was slightly higher than normal. Peptide leukotriene may have contributed to the coughing. The fact that coughing associated with cough-variant asthma was abolished by a peptide leukotriene receptor antagonist is clinically important.
Download full-text PDF |
Source |
|---|
Publication Analysis
Top Keywords
Similar Publications
Single-cell sequencing of human Langerhans cells identifies altered gene expression profiles in patients with atopic dermatitis.
Immunohorizons
January 2025
Department of Medical Microbiology and Infection Prevention, Amsterdam UMC location University of Amsterdam, Amsterdam, the Netherlands.
Atopic dermatitis (AD) is characterized by dysregulated T cell immunity and skin microbiome dysbiosis with predominance of Staphylococcus aureus, which is associated with exacerbating AD skin inflammation. Specific glycosylation patterns of S. aureus cell wall structures amplify skin inflammation through interaction with Langerhans cells (LCs).
View Article and Find Full Text PDFBiosynthetic pathway for leukotrienes is stimulated by lipopolysaccharide and cytokines in pig endometrial stromal cells.
Sci Rep
January 2025
Division of Reproductive Biology, Institute of Animal Reproduction and Food Research, Polish Academy of Sciences, Tuwima 10, Olsztyn, 10-748, Poland.
An inflammatory response is related to different inflammatory mediators generated by immune and endometrial cells. The links between lipopolysaccharide (LPS), cytokines, and leukotrienes (LTs) in endometrial stromal cells remain unclear. This study aimed to examine the influence of LPS, tumor necrosis factor (TNF)-α, interleukin (IL)-1β, IL-4 and IL-10 on 5-lipooxygenase (5-LO), LTA4 hydrolase (LTAH) and LTC4 synthase (LTCS) mRNA and protein abundances, and LTB4 and cysteinyl (cys)-LTs release including LTC4, by the cultured pig endometrial stromal cells, as well as on cell viability.
View Article and Find Full Text PDFTracheal tuft cells release ATP and link innate to adaptive immunity in pneumonia.
Nat Commun
January 2025
Institute of Anatomy and Cell Biology, Saarland University, Homburg, Germany.
Tracheal tuft cells shape immune responses in the airways. While some of these effects have been attributed to differential release of either acetylcholine, leukotriene C4 and/or interleukin-25 depending on the activating stimuli, tuft cell-dependent mechanisms underlying the recruitment and activation of immune cells are incompletely understood. Here we show that Pseudomonas aeruginosa infection activates mouse tuft cells, which release ATP via pannexin 1 channels.
View Article and Find Full Text PDFAntiviral and Immunomodulatory Effects of Zafirlukast Against Flaviviruses via Inhibition of the TNF Signaling Pathway.
J Med Virol
January 2025
Infection and Immunity Research Strength, Jeffrey Cheah School of Medicine and Health Sciences, Monash University Malaysia, Selangor, Malaysia.
The two most clinically important members of the flavivirus genus, Zika virus (ZIKV) and dengue virus (DENV) pose a significant public health challenge. They cause a range of diseases in humans, from hemorrhagic to neurological manifestations, leading to economic and social burden worldwide. Nevertheless, there are no approved antiviral drugs to treat these infections.
View Article and Find Full Text PDFUnderstanding the development of tuberculous granulomas: insights into host protection and pathogenesis, a review in humans and animals.
Front Immunol
December 2024
Department of Academic Affairs, National Jewish Health, Denver, CO, United States.
Granulomas, organized aggregates of immune cells which form in response to (), are characteristic but not exclusive of tuberculosis (TB). Despite existing investigations on TB granulomas, the determinants that differentiate host-protective granulomas from granulomas that contribute to TB pathogenesis are often disputed. Thus, the goal of this narrative review is to help clarify the existing literature on such determinants.
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!