Altered polarization and impaired phagocytic activity of lung macrophages in people with HIV and COPD

2021 ◽  
Author(s):  
Kentaro Akata ◽  
Janice M Leung ◽  
Kei Yamasaki ◽  
Fernando S Leitao Filho ◽  
Julia Yang ◽  
...  
Keyword(s):  
Chronic Obstructive Pulmonary Disease ◽  
Pulmonary Disease ◽  
Phagocytic Activity ◽  
Chronic Obstructive ◽  
Double Negative ◽  
Phagocytic Capacity ◽  
Obstructive Pulmonary Disease ◽  
Lung Macrophages ◽  
Increased Risk ◽  
Risk Of Disease

Abstract Background People with HIV (PWH) have an increased risk of developing Chronic Obstructive Pulmonary Disease (COPD). Methods We phenotyped lung macrophages in four subgroups: M1 (CD40+CD163-), M2 (CD40-CD163+), Double Positives (CD40+CD163+), Double Negatives (CD40-CD163-) and determined their phagocytic capacity in PWH with and without COPD. Results PWH with COPD have more double negative macrophages (84.1%) vs PWH without (54.3%) vs controls (23.9%) (p=0.004) and reduced phagocytosis (p=0.012). Double negative macrophages had the worst phagocytic capacity (p<0.001). Conclusions PWH with COPD have an abundance of non-polarized macrophages which have poor phagocytic capacity therefore predispose them to increased risk of disease progression.

scholarly journals LINC01414/LINC00824 genetic polymorphisms in association with the susceptibility of chronic obstructive pulmonary disease

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Xiaoman Zhou ◽  
Yunjun Zhang ◽  
Yutian Zhang ◽  
Quanni Li ◽  
Mei Lin ◽  
...  
Keyword(s):  
Chronic Obstructive Pulmonary Disease ◽  
Pulmonary Disease ◽  
Genetic Polymorphisms ◽  
Chronic Obstructive ◽  
Nucleotide Polymorphisms ◽  
Obstructive Pulmonary Disease ◽  
Logistic Analysis ◽  
Copd Patients ◽  
Increased Risk ◽  
And Gender

Abstract Objective Chronic obstructive pulmonary disease (COPD) is a complicated multi-factor, multi-gene disease. Here, we aimed to assess the association of genetic polymorphisms in LINC01414/ LINC00824 and interactions with COPD susceptibility. Methods Three single nucleotide polymorphisms (SNPs) in LINC01414/LINC00824 was genotyped by Agena MassARRAY platform among 315 COPD patients and 314 controls. Logistic analysis adjusted by age and gender were applied to estimate the genetic contribution of selected SNPs to COPD susceptibility. Results LINC01414 rs699467 (OR = 0.73, 95% CI 0.56–0.94, p = 0.015) and LINC00824 rs7815944 (OR = 0.56, 95% CI 0.31–0.99, p = 0.046) might be protective factors for COPD occurrence, while LINC01414 rs298207 (OR = 2.88, 95% CI 1.31–6.31, p = 0.008) risk-allele was related to the increased risk of COPD in the whole population. Rs7815944 was associated with the reduced risk of COPD in the subjects aged > 70 years (OR = 0.29, p = 0.005). Rs6994670 (OR = 0.57, p = 0.007) contribute to a reduced COPD risk, while rs298207 (OR = 7.94, p = 0.009) was related to a higher susceptibility to COPD at age ≤ 70 years. Rs298207 (OR = 2.54, p = 0.043) and rs7815944 (OR = 0.43, p = 0.028) variants was associated COPD risk among males. Rs7815944 (OR = 0.16, p = 0.031) was related to the reduced susceptibility of COPD in former smokers. Moreover, the association between rs298207 genotype and COPD patients with dyspnea was found (OR = 0.50, p = 0.016), and rs7815944 was related to COPD patients with wheezing (OR = 0.22, p = 0.008). Conclusion Our finding provided further insights into LINC01414/LINC00824 polymorphisms at risk of COPD occurrence and accumulated evidence for the genetic susceptibility of COPD.

scholarly journals Influenza in Malaysian adult patients hospitalized with community-acquired pneumonia, acute exacerbation of chronic obstructive pulmonary disease or asthma: a multicenter, active surveillance study

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Yong Kek Pang ◽  
Ahmad Izuanuddin Ismail ◽  
Yoke Fun Chan ◽  
Adelina Cheong ◽  
Yoong Min Chong ◽  
...  
Keyword(s):  
Chronic Obstructive Pulmonary Disease ◽  
Pulmonary Disease ◽  
Acute Exacerbation ◽  
Active Surveillance ◽  
Community Acquired Pneumonia ◽  
Surveillance Study ◽  
Chronic Obstructive ◽  
Obstructive Pulmonary Disease ◽  
High Dependency ◽  
Increased Risk

Abstract Background Available data on influenza burden across Southeast Asia are largely limited to pediatric populations, with inconsistent findings. Methods We conducted a multicenter, hospital-based active surveillance study of adults in Malaysia with community-acquired pneumonia (CAP), acute exacerbation of chronic obstructive pulmonary disease (AECOPD) and acute exacerbation of asthma (AEBA), who had influenza-like illness ≤10 days before hospitalization. We estimated the rate of laboratory-confirmed influenza and associated complications over 13 months (July 2018–August 2019) and described the distribution of causative influenza strains. We evaluated predictors of laboratory-confirmed influenza and severe clinical outcomes using multivariate analysis. Results Of 1106 included patients, 114 (10.3%) were influenza-positive; most were influenza A (85.1%), with A/H1N1pdm09 being the predominant circulating strain during the study following a shift from A/H3N2 from January–February 2019 onwards. In multivariate analyses, an absence of comorbidities (none versus any comorbidity [OR (95%CI), 0.565 (0.329–0.970)], p = 0.038) and of dyspnea (0.544 (0.341–0.868)], p = 0.011) were associated with increased risk of influenza positivity. Overall, 184/1106 (16.6%) patients were admitted to intensive care or high-dependency units (ICU/HDU) (13.2% were influenza positive) and 26/1106 (2.4%) died (2.6% were influenza positive). Males were more likely to have a severe outcome (ICU/HDU admission or death). Conclusions Influenza was a significant contributor to hospitalizations associated with CAP, AECOPD and AEBA. However, it was not associated with ICU/HDU admission in this population. Study registration, NMRR ID: NMRR-17-889-35,174.

Nexobrid Treatment for Burn Injuries in Patients With Chronic Obstructive Pulmonary Disease and Home Oxygen Therapy

2021 ◽  
Author(s):  
Marc Daniels ◽  
Jan Philipp Stromps ◽  
Wolfram Heitzmann ◽  
Jennifer Schiefer ◽  
Paul Christian Fuchs ◽  
...  
Keyword(s):  
Chronic Obstructive Pulmonary Disease ◽  
Pulmonary Disease ◽  
Oxygen Therapy ◽  
Burn Injuries ◽  
Chronic Obstructive ◽  
Obstructive Pulmonary Disease ◽  
Specific Patient ◽  
Home Oxygen Therapy ◽  
Increased Risk ◽  
Enzymatic Debridement

Abstract There is an increased risk for burn injuries associated with home oxygen therapy of patients with chronic obstructive pulmonary disease since 10 to 50 % of these patients continue to smoke. Enzymatic eschar removal of facial burns is gaining popularity but intubation of this specific patient group often leads to prolonged weaning and can require tracheostomy. This study dealt with the question if enzymatic debridement in these patients can also be performed in analgosedation. A selective review of the literature regarding burn trauma associated with home oxygen use in patients with COPD was performed, as well as a retrospective analysis of all patients with burn injuries associated with home oxygen use and chronic obstructive pulmonary disease that were admitted to the study clinic. In the literature 1746 patients with burns associated with home oxygen use are described, but none of them received enzymatic debridement. In this study seventeen patients were included. All three patients in this study with facial full-thickness burn injuries received enzymatic debridement. The mortality rate in this cohort was 17.6 % (3/17). Up to date, there is limited experience performing regional anesthesia debridement in patients with COPD. This is the first manuscript describing the use of enzymatic debridement in patients with COPD and home oxygen therapy. We could confirm other studies that intubation of these patients leads to prolonged ventilation hours and increases the probability for poor prognosis. Therefore, we described the treatment of enzymatic debridement in analgosedation without intubation.

scholarly journals Association of Anthropometric Indexes With Disease Severity in Male Patients With Chronic Obstructive Pulmonary Disease in Qazvin, Iran

2018 ◽  
Vol 12 (4) ◽  
pp. 1023-1028 ◽  
Author(s):  
Ramin Sami ◽  
Raheleh Sadegh ◽  
Neda Esmailzadehha ◽  
Sanaz Mortazian ◽  
Masoomeh Nazem ◽  
...  
Keyword(s):  
Chronic Obstructive Pulmonary Disease ◽  
Pulmonary Disease ◽  
Disease Severity ◽  
Stage Iv ◽  
Chronic Obstructive ◽  
Obstructive Pulmonary Disease ◽  
Gold Stage ◽  
Increased Risk ◽  
Anthropometric Indexes ◽  
Male Patients

Malnutrition is one of the most important factors that lead to lower quality of life in patients suffering from chronic obstructive pulmonary disease (COPD). There are several methods for assessing malnutrition including anthropometric indexes. The aim of this study was to determine the association of anthropometric indexes with disease severity in male patients with COPD in Qazvin, Iran. This cross-sectional study was conducted on 72 male patients with COPD in Qazvin, Iran, from May to December 2014. Spirometry was performed for all participants. Disease severity was determined using the Global Initiative for Chronic Obstructive Lung Disease (GOLD) guideline. Body mass index (BMI), mid-arm muscle circumference (MAMC), and triceps skinfold thickness (TSF) were measured. MAMC and TSF were categorized into three subgroups as <25th P, between 25th P and 75th P, and >75th P (Where P is the abbreviation for percentile.). Data were analyzed using ANOVA and logistic regression analysis. Mean age was 60.23 ± 11.39 years. Mean BMI was 23.23 ± 4.42 Kg/m2, mean MAMC was 28.34 ± 3.72 cm2, and mean TSF was 10.15 ± 6.03 mm. Mean BMI and MAMC in the GOLD stage IV were significantly lower than other stages. Of 72, 18.1% were underweight while 6.9% were obese. The GOLD stage IV was associated with 16 times increased risk of underweight and nine times increased risk of MAMC < 25th P. Disease severity was associated with BMI and MAMC as indexes of malnutrition in patients with COPD in the present study. The GOLD stage IV was associated with increased risk of underweight and low MAMC.

Abstract 16961: Time-dependent Markers of Chronic Obstructive Pulmonary Disease Severity and Change are Associated With Increased Risk of Mortality in the General Heart Failure Population: A National Study of 50,114 Patients From the United Kingdom

Circulation ◽  
2015 ◽  
Vol 132 (suppl_3) ◽  
Author(s):  
Claire A Rushton ◽  
Lucy Riley ◽  
Duwarakan K Satchithananda ◽  
Peter W Jones ◽  
Umesh T Kadam
Keyword(s):  
Heart Failure ◽  
Chronic Obstructive Pulmonary Disease ◽  
Pulmonary Disease ◽  
Chronic Obstructive ◽  
Forced Expiration ◽  
Obstructive Pulmonary Disease ◽  
Gold Stage ◽  
Risk Of Mortality ◽  
Increased Risk

Purpose: Heart failure (HF) carries poor prognosis which changes over time. Chronic obstructive pulmonary disease (COPD) is common in HF and increases risk of mortality but how COPD severity and change influences HF prognosis is unknown. We hypothesised that in the HF general population, comorbidity stratification by increasing severity and longitudinal change would be associated with increased mortality. Methods: We used a case-control study nested within the UK Clinical Practice Research Datalink database (12-year time-period to 2014), of newly diagnosed HF patients aged over 40 years. Using risk set sampling, four controls were matched to cases on calendar and follow-up time. Routinely collected clinical measures of severity and change for COPD were (i) forced expiration volume in 1 second (FEV 1 ) stages, defined by Global Initiatives for Chronic Obstructive Lung Disease (GOLD) guidelines and (ii) prescribed medications in two time-windows covering 1-year prior to the match date. Conditional logistic regression was used to estimate risk ratios (RR) for all-cause mortality adjusted for known confounders. Results: Of the 50,114 HF sample, 5,848 (11.7%) had COPD and of these 62% died during follow-up compared to 52% of patients without COPD. COPD comorbidity risk associated with mortality stratified by GOLD stages was as follows: stage 1; adjusted RR 1.73 (95% CI 1.50-1.99) to stage 4; 3.14 (2.65, 3.73). Estimates for COPD FEV 1 change compared to no COPD were: GOLD stage same or better; 2.15 (1.97, 2.34) and GOLD stage worse; 2.70 (2.30, 3.17). The mortality estimates for medications severity were: inhalers only 1.13 (1.07,1.19), oral steroids; 1.83 (1.69,1.97) and oxygen; 2.94 (2.47, 3.51). The estimates for medications change were: no new steroids or oxygen; 1.22, (1.16, 1.28), new steroids but not oxygen; 1.84, (1.67,1.28) and new on oxygen; 3.41, (2.71,4.29). Conclusions: COPD is an important and common comorbidity in HF. Our results show that worse COPD severity and recent change based on routinely collected clinical data was associated with increased mortality and provides key prognostic information for clinical assessment in practice.

Relation between Chronic Obstructive Pulmonary Disease and Peripheral Arterial Disease among Construction Workers

2021 ◽  
Vol 15 (10) ◽  
pp. 3473-3475
Author(s):  
U. Sivakumar ◽  
Rinku Garg ◽  
Sunita Nighute
Keyword(s):  
Chronic Obstructive Pulmonary Disease ◽  
Peripheral Arterial Disease ◽  
Pulmonary Disease ◽  
Arterial Disease ◽  
Chronic Obstructive ◽  
Obstructive Pulmonary Disease ◽  
Risk Of Death ◽  
Increased Risk ◽  
Peripheral Arterial

Introduction: PAD was asymptomatic in a large proportion of COPD patients and was associated with more severe lung disease than in COPD subjects without PAD. Materials and Methods: This was a Cross-sectional study conducted at Department of Physiology, Santosh Medical College diagnosed with COPD using Spirometry was recruited for the study with a Sample size of 130 patients. Results: The characteristics of the population for follow-up (n=130) are presented in table 1. The mean Mean±SD was 51.73±6.1 years. The prevalence of never smokers was 21.5%, former smokers were 51.5% and current smokers were 26.9%. In total, 41 out of 130 individuals (31.5%) had PAD based on an ABI of less than 0.6. A statistically significant association was found between COPD and newly diagnosed PAD during follow-up. The association between COPD and incident PAD was stronger (adjusted OR 1.91, 95% CI 1.14–3.21). Stratified analysis by smoking status revealed that the overall association between COPD and newly developed PAD was driven by the ever smoker group. Conclusion: Subjects with COPD have a higher risk of developing PAD. People with both COPD and PAD have a substantially increased risk of death. Consequently, early detection of PAD and preventive actions in people with COPD should receive more attention in clinical respiratory care. Keywords: Peripheral Arterial Disease, Chronic Obstructive Pulmonary Disease, Ankle-brachial index.

scholarly journals Risk Factors for Postural and Functional Balance Impairment in Patients with Chronic Obstructive Pulmonary Disease

2020 ◽  
Vol 9 (2) ◽  
pp. 609
Author(s):  
Jaekwan K. Park ◽  
Nicolaas E. P. Deutz ◽  
Clayton L. Cruthirds ◽  
Sarah K. Kirschner ◽  
Hangue Park ◽  
...  
Keyword(s):  
Risk Factors ◽  
Chronic Obstructive Pulmonary Disease ◽  
Pulmonary Disease ◽  
Postural Balance ◽  
Chronic Obstructive ◽  
Obstructive Pulmonary Disease ◽  
Balance Impairment ◽  
Functional Balance ◽  
Control Subjects ◽  
Increased Risk

Reduced balance function has been observed during balance challenging conditions in the chronic obstructive pulmonary disease (COPD) population and is associated with an increased risk of falls. This study aimed to examine postural balance during quiet standing with eyes open and functional balance in a heterogeneous group of COPD and non-COPD (control) subjects, and to identify risk factors underlying balance impairment using a large panel of methods. In COPD and control subjects, who were mostly overweight and sedentary, postural and functional balance were assessed using center-of-pressure displacement in anterior-posterior (AP) and medio-lateral (ML) directions, and the Berg Balance Scale (BBS), respectively. COPD showed 23% greater AP sway velocity (p = 0.049). The presence of oxygen therapy, fat mass, reduced neurocognitive function, and the presence of (pre)diabetes explained 71% of the variation in postural balance in COPD. Transcutaneous oxygen saturation, a history of exacerbation, and gait speed explained 83% of the variation in functional balance in COPD. Neurocognitive dysfunction was the main risk factor for postural balance impairment in the control group. This suggests that specific phenotypes of COPD patients can be identified based on their type of balance impairment.

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