Background: Chronic obstructive pulmonary disease (COPD), characterized by high-energy metabolism, often leads to malnutrition and is linked to exacerbations. This study investigates the association of malnutrition-related body composition and handgrip strength changes with exacerbation frequencies in COPD patients.
Methods: We analyzed 77 acute exacerbation COPD (AECOPD) patients and 82 stable COPD patients, categorized as frequent and infrequent exacerbators. Assessments included body composition, handgrip strength, nutritional risk, dyspnea scale, and COPD assessment.
Results: Among AECOPD patients, there were 22 infrequent and 55 frequent exacerbators. Infrequent exacerbators showed better muscle parameters, extracellular water ratio, phase angle, and handgrip strength. Significant differences in intracellular water, total cellular water, protein, and body cell mass were observed between groups. Logistic regression indicated that extracellular water ratio (OR = 1.086) and phase angle (OR = 0.396) were independently associated with exacerbation risk. Thresholds for exacerbation risk were identified as 0.393 for extracellular water ratio and 4.85° for phase angle. In stable COPD, 13 frequent and 69 infrequent exacerbators were compared, showing no significant differences in weight, muscle, and adipose parameters, but significant differences in extracellular water ratio, phase angle, and handgrip strength.
Conclusions: These findings suggest that increased exacerbations in COPD patients correlate with higher extracellular water ratios and lower phase angles.
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http://dx.doi.org/10.3390/arm92030023 | DOI Listing |
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Materials Science and Engineering Department, Technion-Israel Institute of Technology, Haifa 3200003, Israel.
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Systems Biotechnology Group, Department Microbial Biotechnology, Helmholtz Centre for Environmental Research - UFZ, Leipzig, 04318, Germany.
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View Article and Find Full Text PDFJ Med Chem
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Department of Chemistry, Tianjin University, Tianjin 300072, China.
The integration of photodynamic therapy (PDT) and photothermal therapy (PTT) offers a promising strategy for enhancing phototherapy efficiency. Herein, we present a dual-functional, biocompatible nanocomposite system for combination PDT/PTT therapy. The system utilizes a highly biocompatible nanoparticle assembled by an amphiphilic short peptide with the assistance of Zn as a carrier.
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