Lung
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Observational Study
Serum sRAGE as a potential biomarker for pediatric bronchiolitis: a pilot study.
Traditional inflammatory biomarkers are insufficient for the evaluation of bronchiolitis severity. Recent investigations have shown that the receptor for advanced glycation end product (RAGE) and its soluble isoforms (sRAGE) play a critical role in the pathogenesis of lung injury. Main objective was to assess the serum levels of sRAGE of children with severe bronchiolitis admitted to the pediatric intensive care unit (PICU). Secondary objective was to study sRAGE correlation with the evolution and traditional biomarkers. ⋯ Serum sRAGE could be elevated in children with bronchiolitis. Larger clinical studies are necessary to elucidate its role as a bronchiolitis inflammatory and/or lung injury biomarker.
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Acute respiratory distress syndrome (ARDS) is a life-threating condition with high morbidity and mortality. Inflammation is the main factor in the pathogenesis of ARDS. Therefore systemic corticosteroids are a rational therapeutic approach, but the effect of corticosteroids is still unclear. In this study, we looked at the effects of corticosteroids in ventilated sheep with ARDS, induced by lung lavage. ⋯ Our study showed that corticosteroids did not influence inflammation in early phase ARDS and that hyperoxia aggravated lung injury which could not be modulated by dexamethasone in early phase ARDS.
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Comparative Study Retracted Publication
ATF3 and extracellular matrix-related genes associated with the process of chronic obstructive pulmonary.
Chronic obstructive pulmonary disease (COPD) is a major public health problem worldwide and is proved to be the number three cause of death in globally. The objective of this study was to explore the molecular mechanism of the progression of COPD. ⋯ The genes regulated by ATF3 transcriptional activator as well as ECM-related genes may play an important role in the process of COPD. Our study provides a comprehensive bioinformatics analysis of genes and pathways which may be involved in the progression of COPD.
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Comparative Study Observational Study
Advanced diagnostic bronchoscopy using conscious sedation and the laryngeal nerve block: tolerability, thoroughness, and diagnostic yield.
Although bronchoscopy has conventionally been performed using conscious sedation, advanced diagnostic techniques like endobronchial ultrasound-guided transbronchial needle aspiration (EBUS-TBNA), peripheral EBUS, and electromagnetic navigational bronchoscopy add to procedural complexity. The adaptation of these techniques by bronchoscopists of varied backgrounds is expanding. It is not clear how patients will tolerate these advanced procedures when they are performed using traditional conscious sedation. ⋯ This study suggests that advanced diagnostic bronchoscopic procedures are well tolerated using conscious sedation with no compromise of thoroughness, diagnostic yield, or safety. This may be useful for bronchoscopists using these techniques who do not have ready access to general anesthesia.