| Title |
Proteasome activity related with the daily physical activity of COPD patients
|
|---|---|
| Published in |
International Journal of Chronic Obstructive Pulmonary Disease, May 2017
|
| DOI | 10.2147/copd.s132276 |
| Pubmed ID | |
| Authors |
Kang-Yun Lee, Tzu-Tao Chen, Ling-Ling Chiang, Hsiao-Chi Chuang, Po-Hao Feng, Wen-Te Liu, Kuan-Yuan Chen, Shu-Chuan Ho |
| Abstract |
COPD is a debilitating disease that affects patients' daily lives. One's daily physical activity (DPA) decreases due to multifactorial causes, and this decrease is correlated with a poor prognosis in COPD patients. Muscle wasting may at least be partly due to increased activity of the ubiquitin proteasome pathway and apoptosis. This study investigated the relationships among DPA, circulating proteasome activity, and protein carbonyl in COPD patients and healthy subjects (HSs). This study included 57 participants (42 patients and 15 healthy subjects). Ambulatory DPA was measured using actigraphy, and oxygen saturation was measured with a pulse oximeter. COPD patients had lower DPA, lower 6 min walking distance (6MWD), lower delta saturation pulse oxygenation (SpO2) during the 6MWT, and lower delta SpO2 during DPA than HSs. COPD patients had higher proteasome activity and protein carbonyl than HSs. Circulating proteasome activity was significantly negatively correlated with DPA (r=-0.568, P<0.05) in COPD patients, whereas delta SpO2 during the 6MWT was significantly positively correlated with proteasome activity (r=0.685, P<0.05) in HSs. Protein carbonyl was significantly negatively correlated with the body mass index (r=-0.318, P<0.05), mid-arm circumference (r=0.350, P<0.05), calf circumference (r=0.322, P<0.05), forced expiratory volume in the first second (r=-0.441, P<0.01), and 6MWD (r=-0.313, P<0.05) in COPD patients. Our results showed no significant difference in inflammatory markers (interleukin-6 and tumor necrosis factor-α) or ubiquitin between the two groups. COPD patients had lower DPA levels and higher circulating proteasome activity than HSs, and a negative correlation of DPA with circulating proteasome activity. |
X Demographics
The data shown below were collected from the profiles of 2 X users who shared this research output. Click here to find out more about how the information was compiled.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| United Kingdom | 1 | 50% |
| Unknown | 1 | 50% |
Demographic breakdown
| Type | Count | As % |
|---|---|---|
| Members of the public | 2 | 100% |
Mendeley readers
The data shown below were compiled from readership statistics for 35 Mendeley readers of this research output. Click here to see the associated Mendeley record.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| Taiwan | 1 | 3% |
| Unknown | 34 | 97% |
Demographic breakdown
| Readers by professional status | Count | As % |
|---|---|---|
| Researcher | 6 | 17% |
| Student > Ph. D. Student | 5 | 14% |
| Student > Master | 5 | 14% |
| Student > Bachelor | 3 | 9% |
| Student > Doctoral Student | 2 | 6% |
| Other | 8 | 23% |
| Unknown | 6 | 17% |
| Readers by discipline | Count | As % |
|---|---|---|
| Medicine and Dentistry | 15 | 43% |
| Nursing and Health Professions | 8 | 23% |
| Computer Science | 3 | 9% |
| Sports and Recreations | 2 | 6% |
| Environmental Science | 1 | 3% |
| Other | 1 | 3% |
| Unknown | 5 | 14% |
Attention Score in Context
This research output has an Altmetric Attention Score of 1. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 20 March 2018.
All research outputs
#17,289,387
of 25,382,440 outputs
Outputs from International Journal of Chronic Obstructive Pulmonary Disease
#1,732
of 2,578 outputs
Outputs of similar age
#206,650
of 324,557 outputs
Outputs of similar age from International Journal of Chronic Obstructive Pulmonary Disease
#50
of 75 outputs
Altmetric has tracked 25,382,440 research outputs across all sources so far. This one is in the 21st percentile – i.e., 21% of other outputs scored the same or lower than it.
So far Altmetric has tracked 2,578 research outputs from this source. They typically receive a little more attention than average, with a mean Attention Score of 6.5. This one is in the 24th percentile – i.e., 24% of its peers scored the same or lower than it.
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We're also able to compare this research output to 75 others from the same source and published within six weeks on either side of this one. This one is in the 24th percentile – i.e., 24% of its contemporaries scored the same or lower than it.