scholarly journals Similarities and Differences in the Effects of Sarcopenia on Bone Mineral Density Reduction Between Mild Chronic Chronic Obstructive Pulmonary Disease (COPD), Moderate to Severe COPD and Normal Lung Function in the Elderly

Author(s):  
D. Lee ◽  
J.-H. Kim
2020 ◽  
Author(s):  
Songming Zhuo ◽  
Hong Zhuang ◽  
Na Li ◽  
Sida Chen ◽  
Wugen Zhan ◽  
...  

Abstract Background: This study aimed to shed light on the correlation between the amounts of CD8+ T cells and autophagy level in COPD. Results: The objects (n = 90) were divided into three groups: COPD group (patients in the stable phase; n = 30), SN group (healthy control of smoking with normal lung function group; n = 30), and NSN groups (healthy control of non-smoking with normal lung function group; n = 30). The amounts of CD8+ (32.33 ± 4.23%), CD8+ effector (25.63 ± 8.57%) and CD8+memory (11.94 ± 5.77%) T cell in the COPD group were significantly higher those in the other two groups, while the apoptotic rate was lower in the COPD group (P < 0.05). Significant linear correlations were found of P62/GAPDH (‰) with CD8+, CD8+effector, and CD8+ memory- T cell amounts (P<0.001). Conclusions: Autophagy level is positively and linearly associated with the amounts of CD8+ T cells, suggesting that cell autophagy might be involved in COPD pathogenesis.


2020 ◽  
Vol 3 (1) ◽  
pp. 2-8
Author(s):  
Robert A. Wise

Asthma and COPD are easily recognizable clinical entities in their characteristic presentations. Asthma is an early-onset disorder characterized by Type 2, eosinophil-predominant, inflammation of the airways and is associated with atopy. COPD presents in middle age and is characterized by neutrophilic inflammation of the airways and is associated with cigarette smoking or biomass fuel exposure. Between exacerbations, asthma typically has normal lung function whereas COPD has incompletely reversible lung function. Approximately one in five patients with either of these disorders will show some features of both COPD and Asthma. This overlap is far more common than can be accounted for by chance concurrence of two common diseases. There are likely genetic and environmental susceptibilities to both disorders, but there is no single pathobiological mechanism that identifies all such overlap patients. Most likely there are numerous predispositions that lead to Asthma-COPD overlap that may be grounded in early childhood or even pre-natal events. Thus, Asthma-COPD overlap is best considered a family of diseases with overlapping clinical manifestations. The future elucidation of these different pathways to Asthma-COPD overlap, in conjunction with highly targeted therapies will aid clinicians in treating these patients.


2019 ◽  
Vol 19 (1) ◽  
Author(s):  
Xiang Zeng ◽  
Dongling Liu ◽  
Xiangmei Zhao ◽  
Ling Chao ◽  
Yuchun Li ◽  
...  

Abstract Background Bone mineral density (BMD) has been positively associated with lung function in patients diagnosed with respiratory diseases such as chronic obstructive pulmonary disease (COPD) and cystic fibrosis. However, the relationship between BMD and lung function is inconsistent in the general population. Methods To investigate the association between BMD and lung function in a Chinese general population, a total of 1024 adults aged 40–70 years old from Qiliying (an industrial polluted exposure area) and Langgongmiao (the reference area with non-industrial pollution) were recruited and underwent BMD and spirometry tests. Results Both BMD and lung function levels were lower in the exposed area compared to the reference area. In addition, BMD and lung function levels were also lower in females compared to males. Both Spearman and partial correlation analyses showed that BMD was positively correlated with FVC and FEV1. After adjusting linear regression analyses for potential confounding factors, every 0.1 g/cm2 drop in BMD was associated with 53.0 mL decrease in FVC and 33.5 mL decrease in FEV1. Conclusions A reduction of BMD is associated with lower lung function in a general population from China.


2012 ◽  
Vol 15 (2) ◽  
pp. 217-223 ◽  
Author(s):  
Georgios A. Fountoulis ◽  
Markos Minas ◽  
Panagiotis Georgoulias ◽  
Ioannis V. Fezoulidis ◽  
Konstantinos I. Gourgoulianis ◽  
...  

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