An unusual case of mediastinal mass in a child presenting with pneumomediastinum and air dissection in soft tissues

We present such a case in a child where mediastinal mass caused non-traumatic pneumomediastinum, pneumopericardium, subcutaneous and retroperitoneal emphysema. To the extent of our knowledge, this is the first reported case of mediastinal mass resulting in spontaneous air leak.
Source: The Egyptian Journal of Radiology and Nuclear Medicine - Category: Nuclear Medicine Source Type: research

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AbstractChronic obstructive pulmonary disease (COPD) is one of the most important factors in the progress of cardiovascular disease (CVD) which is associated with limited airflow and alveolar demolition. The aim of this study is to investigate the possible protective effect of ellagic acid (EA), as a natural anti-oxidant, against pulmonary arterial hypertension (PAH) and development of lung and heart injuries induced by elastase. Sixty healthy male Sprague-Dawley rats (150 –180 g) were divided into six groups: control (saline 0.9%, 1 ml/kg, by gavage), porcinepancreatic elastase (PPE) (25  UI/kg, intra...
Source: Inflammation - Category: Allergy & Immunology Source Type: research
(Natural News) Chronic obstructive pulmonary disease (COPD) refers to a group of progressive lung diseases, including common ones like emphysema and chronic bronchitis. According to the American Lung Association, COPD is the third leading cause of death in the US, behind cancer and heart disease. More than 15.3 million Americans have been diagnosed with COPD,...
Source: - Category: Consumer Health News Source Type: news
ConclusionPneumorrachis is usually asymptomatic and is self-limiting. It is a radiological diagnosis and is not a clinical diagnosis. CT scan is considered the preferred diagnostic method for reliable and rapid detection of pneumorrachis. In case of coexistence, The physician should be alert to diagnose and treat the underlying cause for related injuries.In such cases, successful results can be obtained with hyper-oxy therapy (100% oxygen inhalation) and antibiotic prophylaxis without the need for surgical treatment.
Source: International Journal of Surgery Case Reports - Category: Surgery Source Type: research
Publication date: Available online 20 February 2020Source: Respiratory InvestigationAuthor(s): Megumi Naka, Saki Shuto, Chisato Konishi, Koichi MaekawaAbstractBackgroundCigarette smoking is a major cause of COPD, with patients also presenting complications that stem from other smoking-related diseases, including urothelial cancer. However, the prevalence of COPD or airflow obstruction in urothelial cancer patients has not been well studied.MethodsWe investigated the prevalence of airflow obstruction (FEV1/FVC 
Source: Respiratory Investigation - Category: Respiratory Medicine Source Type: research
In conclusion, our results suggest that miR-200b may attenuate cellular senescence and inflammatory responses by targeting ZEB2 in pulmonary emphysema. PMID: 32070140 [PubMed - in process]
Source: Artificial Cells, Nanomedicine and Biotechnology - Category: Biotechnology Tags: Artif Cells Nanomed Biotechnol Source Type: research
ConclusionNon-emphysematous gas trapping in the upper and lower lobes has a distinct physiological effect, especially in COPD with minimal emphysema. This local evaluation might allow sensitive detection of changes in lung hyperinflation in COPD.
Source: Respiratory Investigation - Category: Respiratory Medicine Source Type: research
Volume 48, Issue 1, December 2020, Page 656-663 .
Source: Artificial Cells, Blood Substitutes, and Biotechnology - Category: Biotechnology Authors: Source Type: research
In conclusion, we have generated ferret pluripotent stem cells that provide an opportunity for advancing our capacity to evaluate autologous cell engraftment in ferrets. PMID: 32073882 [PubMed - as supplied by publisher]
Source: American Journal of Physiology. Lung Cellular and Molecular Physiology - Category: Cytology Authors: Tags: Am J Physiol Lung Cell Mol Physiol Source Type: research
Abstract Lung cysteine cathepsin S (CatS) that is a potent elastase plays a deleterious role in alveolar remodeling during smoke-induced emphysema. Despite the presence of a reactive nucleophilic cysteine (Cys25) within its active site, most of its elastinolytic activity is preserved after exposure to cigarette smoke extract (CSE), a major source of sulfhydryl oxidants. This result led us to decipher CatS resistance to major and representative CSE oxidants: hydrogen peroxide, formaldehyde, acrolein and peroxynitrite. CatS was inactivated by hydrogen peroxide, peroxynitrite and acrolein in a time- and dose-dependen...
Source: Free Radical Biology and Medicine - Category: Biology Authors: Tags: Free Radic Biol Med Source Type: research
Publication date: Available online 13 February 2020Source: Pharmacology &TherapeuticsAuthor(s): Kylie B.R. Belchamber, Louise E. DonnellyAbstractChronic pulmonary conditions now account for 1 in 15 deaths in the US and mortality is increasing. Chronic obstructive pulmonary disease (COPD) is due to become the 3rd largest cause of mortality by 2030 and mortality from other respiratory conditions such as asthma, idiopathic pulmonary fibrosis and cystic fibrosis are not reducing. There is an urgent need for novel therapies to address this problem as many of the current strategies targeting inflammation are not sufficient. ...
Source: Pharmacology and Therapeutics - Category: Drugs & Pharmacology Source Type: research
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