scholarly journals Association of Plasma Heat Shock Protein 70 with Disease Severity, Smoking and Lung Function of Patients with Chronic Obstructive Pulmonary Disease

2020 ◽  
Vol 9 (10) ◽  
pp. 3097 ◽  
Author(s):  
Iva Hlapčić ◽  
Andrea Hulina-Tomašković ◽  
Marija Grdić Rajković ◽  
Sanja Popović-Grle ◽  
Andrea Vukić Dugac ◽  
...  
Keyword(s):  
Chronic Obstructive Pulmonary Disease ◽  
Heat Shock ◽  
Lung Function ◽  
Disease Severity ◽  
Heat Shock Protein 70 ◽  
Smoking Status ◽  
Airflow Obstruction ◽  
Chronic Obstructive ◽  
Obstructive Pulmonary Disease ◽  
Copd Patients

Extracellular heat shock protein 70 (eHsp70) might modulate immune responses in chronic obstructive pulmonary disease (COPD). The aim of the study was to explore eHsp70 concentration in stable COPD, its association with disease severity and smoking status as well as its diagnostic performance in COPD assessment. Plasma samples were collected from 137 COPD patients and 95 healthy individuals, and concentration of eHsp70 was assessed by commercially available enzyme-linked immunosorbent assay (ELISA) kit (Enzo Life Science, Farmingdale, NY, USA). COPD patients were subdivided regarding airflow obstruction severity and symptoms severity according to the Global Initiative for COPD (GOLD) guidelines. eHsp70 concentration increased in COPD patients when compared to controls and increased with the severity of airflow limitation as well as symptoms burden and exacerbation history. eHsp70 concentration did not differ among COPD patients based on smoking status, yet it increased in healthy smokers compared to healthy nonsmokers. In addition, eHsp70 negatively correlated with lung function parameters forced expiratory volume in one second (FEV1) and FEV1/ forced vital capacity (FVC), and positively with COPD multicomponent indices BODCAT (BMI, airflow obstruction, dyspnea, CAT score), BODEx (BMI, airflow obstruction, dyspnea, previous exacerbations), CODEx (Charlson’s comorbidity index, airflow obstruction, dyspnea, previous exacerbations) and DOSE (dyspnea, airflow obstruction, smoking status, previous exacerbations) With great predictive value (OR = 7.63) obtained from univariate logistic regression, eHsp70 correctly classified 76% of cases. eHsp70 is associated with COPD prediction and disease severity and might have the potential for becoming an additional biomarker in COPD assessment.

Association of Plasma Heat Shock Protein 70 with Disease Severity, Smoking and Lung Function of Patients with Chronic Obstructive Pulmonary Disease

2020 ◽  
Author(s):  
Iva Hlapčić ◽  
Andrea Hulina-Tomašković ◽  
Marija Grdić Rajković ◽  
Sanja Popović-Grle ◽  
Andrea Vukić Dugac ◽  
...  
Keyword(s):  
Chronic Obstructive Pulmonary Disease ◽  
Heat Shock ◽  
Lung Function ◽  
Heat Shock Protein ◽  
Disease Severity ◽  
Heat Shock Protein 70 ◽  
Smoking Status ◽  
Chronic Obstructive ◽  
Obstructive Pulmonary Disease ◽  
Copd Patients

Abstract Background: Extracellular heat shock protein 70 (eHsp70) acts like a damage-associated molecular pattern (DAMP) and it might modulate immune responses in patients with chronic obstructive pulmonary disease (COPD). The aim of the study was to explore plasma eHsp70 concentration in patients with stable COPD, its association with disease severity and smoking status as well as its diagnostic performance in COPD assessment.Methods: Blood samples were collected from 137 COPD patients and 95 healthy individuals. COPD patients were subdivided into GOLD 2-4 stages based on airflow obstruction severity and GOLD A-D groups regarding symptoms and exacerbations. Concentration of eHsp70 was assessed in EDTA plasma by the commercially available ELISA kit. Statistic analysis was performed by MedCalc statistical software.Results: eHsp70 concentration was increased in COPD patients when compared to controls and was increasing with the severity of airflow limitation as well as symptoms burden and exacerbation history. There were no differences in eHsp70 concentrations among COPD patients based on smoking status, yet eHsp70 was increased in healthy smokers compared to healthy non-smokers. Interestingly, healthy smokers had similar eHsp70 level as COPD patients in GOLD 2 stage and those in GOLD A group. In addition, eHsp70 showed significant negative correlation with lung function parameters FEV1 and FEV1/FVC and positive correlation with COPD multicomponent indices BODCAT, BODEx, CODEx and DOSE. Finally, eHsp70 showed great predictive value (OR=7.63) and correctly classified 76% of cases.Conclusions: Plasma eHsp70 is associated with COPD prediction and disease severity and might have a potential of becoming an additional biomarker in COPD assessment.

scholarly journals Associations Between Sputum Torque Teno Virus Load and Lung Function and Disease Severity in Patients With Chronic Obstructive Pulmonary Disease

2021 ◽  
Vol 8 ◽  
Author(s):  
Yu Xie ◽  
Qing Xue ◽  
Weike Jiao ◽  
Jianhui Wu ◽  
Yan Yu ◽  
...  
Keyword(s):  
Chronic Obstructive Pulmonary Disease ◽  
Viral Load ◽  
Lung Function ◽  
Pulmonary Disease ◽  
Disease Severity ◽  
Torque Teno Virus ◽  
Chronic Obstructive ◽  
Obstructive Pulmonary Disease ◽  
Copd Patients ◽  
Exacerbation Of Copd

Purpose: Viral load of Torque Teno virus (TTV) is elevated in immunosuppressed patients. The weakened immune response is typical in chronic obstructive pulmonary disease (COPD) patients. However, the relationship between TTV and COPD is still unknown.Patients and Methods: We enrolled 91 patients admitted to hospitals with acute exacerbation of COPD (AECOPD) between January 2017 and August 2017 (ClinicalTrials.gov ID, NCT03236480). Sputum samples were gathered during hospitalization and the 120-day follow-up. TTV distribution and genogroups were assessed, and the associations between viral loads and clinical parameters were analyzed.Results: TTV DNA was detected in 95.6% of COPD patients, and the viral load was nearly invariable at the stable and exacerbation states. Most TTV DNA-positive patients carried four distinct genotypes. Sputum load of TTV was positively associated with RV/TLC (r = 0.378, p = 0.030), and negatively correlated with FEV1/pre and FEV1/FVC (r = −0.484, −0.432, p = 0.011, 0.024, respectively). Neutral correlation between the TTV DNA load and COPD assessment test (CAT) scores (r = 0.258, p = 0.018) was observed.Conclusion: Sputum loads of TTV DNA could be a novel indicator for lung function and disease severity assessment in COPD patients.

scholarly journals Influence of disease severity, smoking status and therapy regimes on leukocyte subsets and their ratios in stable chronic obstructive pulmonary disease

2020 ◽  
Author(s):  
Iva Hlapčić ◽  
Andrea Vukić Dugac ◽  
Sanja Popović-Grle ◽  
Ivona Markelić ◽  
Ivana Rako ◽  
...  
Keyword(s):  
Chronic Obstructive Pulmonary Disease ◽  
Pulmonary Disease ◽  
Disease Severity ◽  
Blood Cells ◽  
Smoking Status ◽  
White Blood Cells ◽  
Chronic Obstructive ◽  
Obstructive Pulmonary Disease ◽  
Lymphocyte Ratio ◽  
Copd Patients

IntroductionBlood cells are involved in systemic inflammation in chronic obstructive pulmonary disease (COPD). We aimed to assess differences in leukocyte subsets and their ratios between COPD patients and healthy individuals as well as their association with disease severity, smoking status and therapy in COPD.Material and methodsOne hundred and nine patients in the stable phase of COPD and 95 controls participated in the study. After blood sampling, white blood cells (WBC), neutrophils (NEUTRO), monocytes (MO), lymphocytes (LY) and basophils (BA) were determined on a Sysmex XN-1000 analyser, and ratios were calculated afterwards.ResultsWhite blood cells, NEUTRO, MO and BA were higher in COPD patients than in controls. Also, COPD patients had increased neutrophil to lymphocyte ratio (NLR), derived NLR (dNLR), monocyte to lymphocyte ratio (MLR), basophil to lymphocyte ratio (BLR), basophil to monocyte ratio (BMR) and monocyte/granulocyte to lymphocyte ratio (M/GLR). Smoking has an impact on leukocyte counts, with BA, BLR and BMR being higher in COPD smokers vs. ex-smokers. Patients with very severe COPD were distinguished from moderate COPD by NLR, dNLR and M/GLR. In addition, those parameters were associated with lung function and dyspnoea, and NLR and dNLR also with multicomponent COPD indices BODCAT and DOSE. Great potential of dNLR, NLR and M/GLR in identifying COPD patients was observed regarding their odds ratios (OR) of 5.07, 2.86, 2.60, respectively (p < 0.001). Common COPD therapy did not affect any of the parameters investigated.ConclusionsLeukocyte subsets and their ratios could be implemented in COPD assessment, especially in evaluating disease severity and prediction.

scholarly journals α1-Antichymotrypsin Mutations In Patients With Chronic Obstructive Pulmonary Disease

1998 ◽  
Vol 13 (4) ◽  
pp. 257-260 ◽  
Author(s):  
Andrew J. Sandford ◽  
Tabassum Chagani ◽  
Tracey D. Weir ◽  
Peter D. Parè
Keyword(s):  
Chronic Obstructive Pulmonary Disease ◽  
Lung Function ◽  
Pulmonary Disease ◽  
Airflow Obstruction ◽  
Chronic Obstructive ◽  
Obstructive Pulmonary Disease ◽  
Copd Patients ◽  
Impaired Lung Function

Mutations in the α1-antichymotrypsin gene have been described which result in reduced levels of α1-antichymotrypsin in the serum. Previous studies have suggested that two of these mutations (Pro227→Ala and Leu55→Pro) predispose to chronic obstructive pulmonary disease (COPD). We have investigated the prevalence of these mutations in 168 COPD patients and 61 controls without airflow obstruction. The prevalence of the Pro227→Ala mutation was 0.9% and it was not associated with impaired lung function. None of the subjects had the Leu55→Pro mutation.

Inspiratory muscle strength in chronic obstructive pulmonary disease depending on disease severity

2007 ◽  
Vol 113 (5) ◽  
pp. 243-249 ◽  
Author(s):  
Hans-Joachim Kabitz ◽  
Stephan Walterspacher ◽  
David Walker ◽  
Wolfram Windisch
Keyword(s):  
Chronic Obstructive Pulmonary Disease ◽  
Muscle Strength ◽  
Pulmonary Disease ◽  
Disease Severity ◽  
Inspiratory Muscle ◽  
Walking Distance ◽  
Chronic Obstructive ◽  
Obstructive Pulmonary Disease ◽  
Copd Patients ◽  
Inspiratory Muscle Strength

Staging criteria for COPD (chronic obstructive pulmonary disease) include symptoms and lung function parameters, but the role of reduced inspiratory muscle strength related to disease severity remains unclear. Therefore the present study tested whether inspiratory muscle strength is reduced in COPD and is related to disease severity according to GOLD (Global Initiative for Chronic Obstructive Lung Disease) criteria and assessed its clinical impact. PImax (maximal inspiratory mouth occlusion pressure), SnPna (sniff nasal pressure) and TwPmo (twitch mouth pressure) following bilateral anterior magnetic phrenic nerve stimulation were assessed in 33 COPD patients (8 GOLD0, 6 GOLDI, 6 GOLDII, 7 GOLDIII and 6 GOLDIV) and in 28 matched controls. Furthermore, all participants performed a standardized 6 min walking test. In comparison with controls, PImax (11.6±2.5 compared with 7.3±3.0 kPa; P<0.001), SnPna (9.7±2.5 compared with 6.9±3.3 kPa; P<0.001) and TwPmo (1.6±0.6 compared with 0.8±0.4 kPa; P<0.001) were markedly lower in COPD patients. TwPmo decreased with increasing COPD stage. TwPmo was correlated with walking distance (r=0.75; P<0.001), dyspnoea (r=−0.61; P<0.001) and blood gas values following exercise (r>0.57; P<0.001). Inspiratory muscle strength, as reliably assessed by TwPmo, decreased with increasing severity of COPD and should be considered as an important factor in rating disease severity and to reflect burden in COPD.

scholarly journals Impact of smoking status on the efficacy of inhaled corticosteroids in chronic obstructive pulmonary disease: a systematic review

BMJ Open ◽  
2020 ◽  
Vol 10 (4) ◽  
pp. e037509
Author(s):  
Kimberley Sonnex ◽  
Hanna Alleemudder ◽  
Roger Knaggs
Keyword(s):  
Systematic Review ◽  
Chronic Obstructive Pulmonary Disease ◽  
Lung Function ◽  
Pulmonary Disease ◽  
Inhaled Corticosteroids ◽  
Smoking Status ◽  
Steroid Resistance ◽  
Cochrane Library ◽  
Chronic Obstructive ◽  
Obstructive Pulmonary Disease

ObjectivesInhaled corticosteroids (ICS) reduce exacerbation rates and the decline in lung function in people with chronic obstructive pulmonary disease (COPD). There is evidence that smoking causes ‘steroid resistance’ and thus reduces the effect of ICS. This systematic review aimed to investigate the effect of smoking on efficacy of ICS in COPD in terms of lung function and exacerbation rates.DesignSystematic review.Data sourcesAn electronic database search of PubMed, Ovid MEDLINE, Ovid Embase and Cochrane Library (January 2000 to January 2020).Eligibility criteriaFully published randomised controlled trials (RCTs), in the English language, evaluating the use of ICS in COPD adults that stratified the participants by smoking status. Trials that included participants with asthma, lung cancer and pneumonia were excluded. The primary outcome measures were changes in lung function and yearly exacerbation rates.Data extraction and synthesisTwo independent reviewers extracted data and assessed risk of bias using the Cochrane Collaboration’s tool.ResultsSeven studies were identified. Four trials (17 892 participants) recorded change in forced expiratory volume in one second (FEV1) from baseline to up to 30 months after starting treatment. Heavier smokers (>36 pack years) using ICS had a greater decline in FEV1that ranged from −22 mL to −75 mL in comparison to lighter smokers. Smokers using ICS had mixed results in FEV1change: −8 mL to +77 mL in comparison to ex-smokers. Four trials (21 270 participants) recorded difference in COPD exacerbation rates at 52 weeks. The rate ratios favoured more exacerbations in ICS users who were current or heavier smokers than those who were ex-smokers or lighter smokers (0.81 to 0.99 vs 0.92 to 1.29).ConclusionsIn COPD, heavier or current smokers do not gain the same benefit from ICS use on lung function and exacerbation rates as lighter or ex-smokers do, however effects may not be clinically important.PROSPERO registration numberCRD42019121833

scholarly journals Fatigue and multidimensional disease severity in chronic obstructive pulmonary disease

2010 ◽  
Vol 5 ◽  
Author(s):  
Deniz Inal-Ince ◽  
Sema Savci ◽  
Melda Saglam ◽  
Ebru Calik ◽  
Hulya Arikan ◽  
...  
Keyword(s):  
Chronic Obstructive Pulmonary Disease ◽  
Pulmonary Disease ◽  
Disease Severity ◽  
Airflow Obstruction ◽  
Muscle Endurance ◽  
Chronic Obstructive ◽  
Obstructive Pulmonary Disease ◽  
Bode Index ◽  
Peripheral Muscle ◽  
St George's Respiratory Questionnaire

Background and aims: Fatigue is associated with longitudinal ratings of health in patients with chronic obstructive pulmonary disease (COPD). Although the degree of airflow obstruction is often used to grade disease severity in patients with COPD, multidimensional grading systems have recently been developed. The aim of this study was to investigate the relationship between perceived and actual fatigue level and multidimensional disease severity in patients with COPD. Materials and methods: Twenty-two patients with COPD (aged 52-74 years) took part in the study. Multidimensional disease severity was measured using the SAFE and BODE indices. Perceived fatigue was assessed using the Fatigue Severity Scale (FSS) and the Fatigue Impact Scale (FIS). Peripheral muscle endurance was evaluated using the number of sit-ups, squats, and modified push-ups that each patient could do. Results: Thirteen patients (59%) had severe fatigue, and their St George’s Respiratory Questionnaire scores were significantly higher (p < 0.05). The SAFE index score was significantly correlated with the number of sit-ups, number of squats, FSS score and FIS score (p < 0.05). The BODE index was signif- icantly associated with the numbers of sit-ups, squats and modified push-ups, and with the FSS and FIS scores (p < 0.05). Conclusions: Peripheral muscle endurance and fatigue perception in patients with COPD was related to multidimensional disease severity measured with both the SAFE and BODE indices. Improvements in perceived and actual fatigue levels may positively affect multidimensional disease severity and health status in COPD patients. Further research is needed to investigate the effects of fatigue perception and exercise training on patients with different stages of multidimensional COPD severity.

Chronic Rhinosinusitis is Frequent in Chronic Obstructive Pulmonary Disease: a Case Control Study

2019 ◽  
Author(s):  
Esther Helen Steveling-Klein ◽  
Claudia Gerhards ◽  
Caroline Zaehringer ◽  
Nebal Abu Hussein ◽  
Selina Dürr ◽  
...  
Keyword(s):  
Chronic Obstructive Pulmonary Disease ◽  
Pulmonary Disease ◽  
Chronic Rhinosinusitis ◽  
Smoking Status ◽  
Control Group ◽  
Chronic Obstructive ◽  
Median Score ◽  
Upper Airways ◽  
Obstructive Pulmonary Disease ◽  
Copd Patients

Abstract Background: Prevalence and impact of chronic rhinosinusitis (CRS) in chronic obstructive pulmonary disease (COPD) remain unclear. We hypothesized that CRS is more frequent in patients with COPD compared to controls and we aimed to evaluate the odds of CRS in both groups. Methods: We recruited patients with COPD and a healthy control group in a tertiary referral hospital in Switzerland. Diagnosis of CRS was defined according to published guidelines and supported by computed tomography (CT) findings. Sino-nasal-outcome-test-20 (SNOT-20) and sino-nasal-outcome-test-primary-nasal-symptom-score (SNOT-PNS-score) were self-assessed with a cut-off for abnormality of >12. Results: Data from 83 COPD patients (35 females, age: 67 years ± 10) and 34 controls (18 females, age: 67 years ± 12) were analyzed. In the COPD group 14 out of 83 (20.3%) fulfilled the diagnosis of CRS compared to only 1 out of 34 (3%) in the control group (OR 6.7; 95% CI 0.84-53.10; p = 0.064). Forty-eight COPD patients (59%) and 14 controls (41%) had an abnormal SNOT-20 score (OR 1.96; 95% CI 0.87-4.40; p=0.10), with a median score of 16.0 (ICR 21) in COPD patients compared to a median score of 8.0 (ICR 13) in controls (p=0.001). The SNOT-PNS-score was abnormal in 49 COPD patients (59%) and in 9 controls (26%) (OR 4.00; 95% CI 1.66-9.64; p=0.001). Abnormal findings of the upper airways did not correlate with COPD severity or smoking status. Conclusions: CRS was a frequent diagnosis in patients with COPD. CRS reduces quality of life in this patient group.

scholarly journals Computed tomography-derived area and density of pectoralis muscle associated disease severity and longitudinal changes in chronic obstructive pulmonary disease: a case control study

2019 ◽  
Vol 20 (1) ◽  
Author(s):  
So Hyeon Bak ◽  
Sung Ok Kwon ◽  
Seon-Sook Han ◽  
Woo Jin Kim
Keyword(s):  
Computed Tomography ◽  
Chronic Obstructive Pulmonary Disease ◽  
Lung Function ◽  
Pulmonary Function ◽  
Pulmonary Disease ◽  
Disease Severity ◽  
Chronic Obstructive ◽  
Pectoralis Muscle ◽  
Obstructive Pulmonary Disease ◽  
Longitudinal Changes

Abstract Background Muscle wasting is associated with prognosis in patients with chronic obstructive pulmonary disease (COPD). The cross-sectional area of skeletal muscles on computed tomography (CT) could serve as a method to evaluate body composition. The present study aimed to determine the ability of CT-derived pectoralis muscle area (PMA) and pectoralis muscle density (PMD) to determine the severity of COPD and change in longitudinal pulmonary function in patients with COPD. Methods A total of 293 participants were enrolled in this study, a whom 222 had undergone at least two spirometry measurements within 3 years after baseline data acquisition. PMA and PMD were measured from a single axial slice of chest CT above the aortic arch at baseline. The emphysema index and bronchial wall thickness were quantitatively assessed in all scans. The generalized linear model was used to determine the correlation between PMA and PMD measurements and pulmonary function. Results PMA and PMD were significantly associated with baseline lung function and the severity of emphysema (P < 0.05). Patients with the lowest PMA and PMD exhibited significantly more severe airflow obstruction (β = − 0.06; 95% confidence interval: − 0.09 to − 0.03]. PMA was statistically associated with COPD assessment test (CAT) score (P = 0.033). However, PMD did not exhibit statistically significant correlation with either CAT scores or modified Medical Research Council scores (P > 0.05). Furthermore, neither PMA nor PMD were associated with changes in forced expiratory volume in 1 s over a 3-year periods. Conclusions CT-derived features of the pectoralis muscle may be helpful in predicting disease severity in patients with COPD, but are not necessarily associated with longitudinal changes in lung function.

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