Results 11 to 20 of about 4,988 (166)

Stability of methacholine chloride solutions under different storage conditions over a 9 month period [PDF]

open access: yesEuropean Respiratory Journal, 1998
Methacholine chloride solutions, routinely used for testing bronchial hyperreactivity, have been shown to degrade over time. The data published addressing the optimal conditions for methacholine chloride storage are conflicting and incomplete. This study investigated the effects of a variety of conditions on the stability of methacholine chloride ...
R D, Hayes   +3 more
openaire   +4 more sources

Acepromazine Reduces Airway Contraction in a Murine Model of Asthma. [PDF]

open access: yesClin Exp Pharmacol Physiol
ABSTRACT Acepromazine (ACP) is one of the most used sedatives in veterinary medicine, and its cardiovascular effects are well documented. In contrast, its effects on the respiratory system remain less well understood, particularly in the context of assessment of respiratory mechanics in murine models of asthma, where its use has become more common in ...
Lino-Alvarado A   +6 more
europepmc   +2 more sources

The effects of e-cigarette use on asthma severity in adult BALB/c mice. [PDF]

open access: yesExp Physiol
Abstract Electronic cigarettes (e‐cigarettes) are often perceived to be a less harmful alternative to tobacco cigarettes. Potentially due to this perception, they are used by people with pre‐existing respiratory conditions, such as asthma, who otherwise would not smoke. Despite this, there are few studies exploring the health effects of e‐cigarette use
D'abreo JJ   +9 more
europepmc   +2 more sources

Vocal biomarkers correlate with FEV1 variations during methacholine challenge. [PDF]

open access: yesClin Transl Allergy
Abstract Background Mobile health applications are increasingly valued for their role in asthma management and the opportunity for large dataset collection. Our study aimed to investigate the feasibility of applying signal‐processing and machine‐learning technologies to detect alterations in the lower airway caliber and develop a machine‐learning ...
Paoletti G   +12 more
europepmc   +2 more sources

Pulmonary surfactant and prostaglandin E2 in airway smooth muscle relaxation of human and male guinea pigs. [PDF]

open access: yesPhysiol Rep
The relaxant effect of pulmonary surfactant on airway smooth muscle (Prostaglandin E2). Abstract Pulmonary surfactant serves as a barrier to respiratory epithelium but can also regulate airway smooth muscle (ASM) tone. Surfactant (SF) relaxes contracted ASM, similar to β2‐agonists, anticholinergics, nitric oxide, and prostanoids. The exact mechanism of
Hanusrichterova J   +14 more
europepmc   +2 more sources

PVC Nanoplastics Exposure Exacerbates Asthma through R-Loop Accumulation and Subsequent STING Activation in Macrophages. [PDF]

open access: yesAdv Sci (Weinh)
Polyvinyl chloride (PVC) nanoplastics (NPs) are shown to aggravate allergic airway inflammation in asthma by triggering R‐loop accumulation and activating the cGAS‐STING pathway in macrophages. This study reveals a novel immunotoxic mechanism linking environmental plastic exposure to asthma pathogenesis and highlights potential molecular targets for ...
Bao Q   +16 more
europepmc   +2 more sources

The Concise Guide to PHARMACOLOGY 2023/24: G protein-coupled receptors

open access: yesBritish Journal of Pharmacology, Volume 180, Issue S2, Page S23-S144, October 2023., 2023
The Concise Guide to PHARMACOLOGY 2023/24 is the sixth in this series of biennial publications. The Concise Guide provides concise overviews, mostly in tabular format, of the key properties of approximately 1800 drug targets, and about 6000 interactions with about 3900 ligands.
Stephen P. H. Alexander   +165 more
wiley   +1 more source

The effect of nose clip on exercise‐induced bronchoconstriction in adolescents

open access: yesPediatric Pulmonology, Volume 58, Issue 9, Page 2647-2655, September 2023., 2023
Abstract Background Oral breathing is considered to increase hyper‐responsiveness of the airways. Data on the need for nose clip (NC) during exercise challenge test (ECT) in children and adolescents is scarce. Ouraim was to evaluate the role of NC during ECT in children and adolescents.
Ilia Spivak   +9 more
wiley   +1 more source

Staphylococcal enterotoxin sensitization in a community-based population : a potential role in adult-onset asthma [PDF]

open access: yes, 2014
Background: Recent studies suggest that Staphylococcus aureus enterotoxin sensitization is a risk factor for asthma. However, there is a paucity of epidemiologic evidence on adult-onset asthma in community-based populations.
Bachert, Claus   +11 more
core   +2 more sources

Testes de broncoprovocação com metacolina e com exercício em bicicleta e corrida livre em crianças com asma intermitente Bronchial provocation tests using methacholine, cycle ergometer exercise and free running in children with intermittent asthma

open access: yesJornal de Pediatria, 2005
OBJETIVO: Comparar a responsividade de vias aéreas à metacolina e ao teste de exercício na bicicleta ergométrica e corrida livre em crianças com asma intermitente. MÉTODOS: Estudo randomizado.
Ana C. T. G. Souza, Carlos A. C. Pereira
doaj   +1 more source

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