interleukin-8 and Bronchitis--Chronic

To compare efficacy of atrovent alone and in combination with erespal in patients with chronic bronchitis (CB) and chronic obstructive pulmonary disease (COPD).. Of 80 participants of the trial (51 male and 29 female--63.75 and 36.25%, respectively) who had CB or COPD, 39 patients (28 with CB and 11 with COPD) received 6-month combined treatment with erespal (160 mg/day) and atrovent (160 mcg/day) and 41 patients (32 with CB and 9 with COPD) received atrovent monotherapy in the same dosage.. Combined therapy produced positive changes in dyspnea, sputum characteristics and its discharge, cough, monotherapy improved sputum discharge and relieved cough; pulmonary ventilation improved in both groups especially in those on monotherapy. CB patients showed low cytosis, percentage and absolute count of neutrophils, absolute count of lymphocytes and eosinophils in induced sputum. In CB patients percentage of lymphocytes reduced while count of macrophages went up. Combined treatment including erespal also promoted a significant fall of serum and sputum TNFalpha and IL-8 reduction in the sputum.. Erespal+atrovent treatment proved more effective than atrovent alone. It is recommended for both CB and COPD patients without marked disorders of external respiration function.

Topics: Adult; Aged; Anti-Inflammatory Agents; Blood Cell Count; Bronchitis, Chronic; Bronchodilator Agents; Disulfiram; Drug Therapy, Combination; Female; Humans; Interleukin-8; Ipratropium; Male; Middle Aged; Pulmonary Disease, Chronic Obstructive; Sputum; Treatment Outcome; Tumor Necrosis Factor-alpha

Gleditsiae sinensis fructus Pills (GF) is a famous classical prescription, that is regularly combined with Jujubae fructus (JF) for the treatment of chronic bronchitis (CB) in the clinic. While the clinical efficacy of this combination prescription is clearly established, the active ingredients and molecular mechanisms remain unclear.. To elucidate the mechanisms of action of Gleditsiae sinensis fructus Pills combined with Jujubae fructus (GF&JF) against CB based on network pharmacology and experimental verification.. The potential targets of GF&JF involved in therapeutic activity against CB were predicted based on network pharmacology and an "ingredients-targets" network constructed. The Metascape database was used for Module, GO functional and KEGG signaling pathway enrichment analyses of potential targets. Molecular docking was applied to simulate the binding activities of key candidate active ingredients to core targets. For experimental verification, a CB model was established through smoking and nasal cavity drip of lipopolysaccharide. Related inflammatory factors, including TNF-α, TGF-β, IL-6 and IL-8 in serum, and IL-4 IL-8, IFN-γ and IL-10 in bronchoalveolar lavage fluid (BALF), were detected using ELISA. Hematoxylin and eosin (H&E) and Masson staining were performed to observe pathological changes in lung and tracheal tissue. The expression of related proteins and mRNAs in the lung tissue were detected using immunohistochemistry (IHC), quantitative real-time PCR, and western blot.. In network pharmacology, 36 common targets of GF&JF for CB were screened and the key targets and main signaling pathways identified. The active ingredients quercetin and stigmasterol in GF&JF had more targets for CB, which displayed good binding activity to IL-6, VEGFA, and EGFR, as established from molecular docking results. In vivo, GF&JF effectively inhibit the inflammatory response in CB mice and improved pathological changes in lung and tracheal tissue. In terms of the key proteins of the AGE-RAGE signaling pathway, GF&JF induced significant down-regulation of IL-6, ICAM-1, VCAM-1, EGFR, CASPASE-3, AGEs and RAGE proteins in lung tissue as well as mRNA expression of IL-6, ICAM-1, VCAM-1, EGFR, AGEs and RAGE.. The GF&JF combination exerts a good therapeutic effect in CB model mice, which may be attributed to inhibition of the inflammatory response as well as regulation on the expression of AGE-RAGE signaling pathway. In addition, quercetin and stigmasterol appear to be the main active ingredients of GF&JF in the treatment of CB.

Topics: Animals; Bronchitis, Chronic; Drugs, Chinese Herbal; ErbB Receptors; Glycation End Products, Advanced; Intercellular Adhesion Molecule-1; Interleukin-6; Interleukin-8; Mice; Molecular Docking Simulation; Quercetin; Signal Transduction; Stigmasterol; Vascular Cell Adhesion Molecule-1

To investigate the anti-inflammatory and immunoregulatory effects of Yupingfeng (, YPF) Powder and its components in rats.. A rat chronic bronchitis (CB) model was developed using lipopolysaccharide (LPS) combined with bacillus Calmette Guerin (BCG). YPF, simple recipe Astragalus membranaceus (Fisch.) Bge (AM) and Astragalus membranaceus (Fisch.) Bge plus rhizome of Atractylodes macrocephala Koidz (AM+RA) decoction were administered (intragastric administration, once a day for 21 days) to rats, to prevent and treat CB. Immunoregulatory and anti-inflammatory effects of YPF, AM and AM+RA were tested by serum pharmacology in vitro on splenic lymphocytes of normal rats and alveolar macrophages of CB rats.. Inflammation in the pulmonary tissue and the bronchus of CB rats was significantly reduced in the YPF-treatment groups, AM and AM+RA groups demonstrating the efficacy of YPF. Serum samples collected at different times from rats after administration of YPF, AM and AM+RA demonstrated increased proliferation of splenic lymphocytes with area under the effect curve (AUE) of 552.6%, 336.3% and 452.0%, respectively. Treatment of alveolar macrophages with serum samples in YPF, AM or AM+RA group inhibited interleukin-8 (IL-8) in the cell culture media, and the effect was much better in the YPF group compared with AM or AM+RA group, with a higher maximal effect (Emax, P<0.05) and larger AUE (P <0.01 and P<0.05). Moreover, serum from rats treated with AM or AM+RA had similar efficacy, while the efficiency was lower than that treated with YPF.. YPF demonstrated anti-inflammatory and immunoregulatory effects in a rat model of CB, and timedependent relationships were demonstrated in vitro.

Topics: Animals; Anti-Inflammatory Agents; Body Weight; Bronchitis, Chronic; Cell Proliferation; Disease Models, Animal; Drugs, Chinese Herbal; Immunologic Factors; Interleukin-8; Lung; Lymphocytes; Macrophages, Alveolar; Powders; Rats; Rats, Sprague-Dawley; Spleen; Time Factors

Chronic bronchitis (CB) is a risk factor in chronic obstructive pulmonary disease (COPD) for accelerated lung function decline and increased mortality. The lung and systemic inflammatory and immunological profile of COPD patients with CB which acutely experience respiratory failure upon a disease exacerbation is unknown.. In this study, we explored the expression of Foxp3 by western blot analysis, TLR4 by immunocytochemistry and the concentrations of IP-10 and IL-8 by ELISA in the mini-bronchoalveolar lavages (mini-BAL) and in the peripheral blood of patients with respiratory failure requiring intubation and mechanical ventilation. The recruited subjects were separated into three different groups: smokers with CB and COPD (COPD, n = 18), smokers with CB but without COPD (S, n = 8) and patients without CB and without COPD (C, n = 10).. In mini-BAL of COPD group, Foxp3 and IP-10 were significantly reduced while TLR4 was significantly increased in comparison to C. TLR4 was also increased in mini-BAL of S. In COPD peripheral blood, Foxp3 was reduced in comparison to C but no significant differences were observed for TLR4 and for IP-10. No significant differences were observed for IL-8 concentrations in the mini-BAL and in the blood of the recruited patients. The mini-BAL TLR4 expression correlated with the Clinical Infective Pulmonary Score.. In exacerbated COPD patients with respiratory failure, lung and systemic reduced immune regulatory events (low Foxp3 expression) and lung increased innate immunity responses (high TLR4 expression) occur. These events may contribute to the increased inflammatory events leading to respiratory failure.

Topics: Aged; Aged, 80 and over; Bronchitis, Chronic; Bronchoalveolar Lavage Fluid; Chemokine CXCL10; Female; Forkhead Transcription Factors; Humans; Interleukin-8; Leukocyte Count; Male; Neutrophils; Pulmonary Disease, Chronic Obstructive; Respiration, Artificial; Smoking; Statistics, Nonparametric; Toll-Like Receptor 4; Up-Regulation

Early preclinical diagnosis of COPD is urgent. We proposed that fatty acid composition of red blood cells may serve as a prognostic test for the complications in the chronic respiratory diseases. Fatty acid composition of the erythrocyte membranes in patients with chronic respiratory diseases (chronic bronchitis, CB, and stable chronic obstructive pulmonary disease, COPD) was studied. It was established that modification of the fatty acid composition in the erythrocyte membranes was unidirectional in both groups of patients.. Patients with CB and stable COPD (group A, GOLD 1) (15 subjects in each group) were studied in clinic. The activity of the inflammatory process was evaluated by the phagocytic activity of neutrophils, cytokine levels and cytokine receptors in the blood serum (TNFα, sTNF-RI, bFGF, TGF-β, IL-8). Fatty acid (FA) composition of the erythrocyte membranes was analyzed by gas liquid chromatography. Statistical data processing was performed by the methods of descriptive statistics with Statistica 6.0.. In both groups (CB and COPD), a significant accumulation of the saturated FAs (14:0, 15:0, 18:0) was established. The amount of the arachidonic acid (20:4n-6) was increased by 13% (р < 0.05) in CB patients and by 41% (р < 0.001) in COPD patients, as compared with healthy persons. The elevated level of the PUFA n-6 in the erythrocytes membranes in patients with chronic respiratory diseases confirms that proinflammatory (leukotriene B4) and bronchospasm (prostaglandin D2) mediator substrates is increased. The level of the eicosapentaenoic acid (20:5n-3) was decreased by 32% (р < 0.05) in CB patients and 2-fold (р < 0.001) in COPD patients. The observed increase in the 20:4n-6/20:5n-3 ratio--1.5-fold (р < 0.001) in CB patients and 3-fold in COPD patients--can be a specific marker of the adverse course of the respiratory pathology and the chronic inflammatory development.. Chronic respiratory disease development is associated with the disturbance of the fatty acid composition in erythrocyte membranes and disbalance of the ratio between precursor of pro- and antiinflammatory eicosanoids.

Topics: Adult; Bronchitis, Chronic; Eicosapentaenoic Acid; Erythrocyte Membrane; Fatty Acids, Unsaturated; Female; Humans; Inflammation; Interleukin-8; Male; Middle Aged; Neutrophils; Pulmonary Disease, Chronic Obstructive; Transforming Growth Factor beta

To test whether chronic bronchial inflammation may be a contributing risk factor for persistent airflow limitation in children born before 32 weeks of gestation in later life.. Thirty-six of 160 children born before 32 completed weeks of gestation who were born between 1988 and 1992 were recruited at a median age of 11 years. Eighteen age-matched children born at term were controls; 47% of the premature infants and 61% of the term born children produced sputum of sufficient quality for interleukin (IL)-8, cell numbers, and differential counts.. Compared with term born children, sputum from the premature group had a higher proportion of neutrophils (62% vs 3.8%; P < .001) and higher IL-8/protein values (1.93 μg/g vs 0.64 μg/g; P = .008). Forced expiratory flow 25%-75% and forced expiratory volume in 1 second/vital capacity were significantly lower (73.4 % vs 116% predicted, P = .002 and 97% vs 101%, P = .012, respectively). Lung function values and sputum indices did not correlate. IL-8/protein and neutrophil percentages correlated significantly with decreasing gestational age (Spearman rank coefficient = -0.58, P = .020 and -.70, P =.03 respectively).. A significant proportion of school children born very preterm demonstrate persistent peripheral airway obstruction that is accompanied by neutrophilic lower airway inflammation.

Topics: Airway Obstruction; Biomarkers; Bronchitis, Chronic; Case-Control Studies; Child; Cross-Sectional Studies; Female; Forced Expiratory Flow Rates; Forced Expiratory Volume; Gestational Age; Humans; Infant, Newborn; Infant, Premature; Infant, Premature, Diseases; Interleukin-8; Logistic Models; Male; Neutrophils; Sputum; Surveys and Questionnaires; Vital Capacity

Topics: Airway Obstruction; Bronchitis, Chronic; Female; Humans; Infant, Premature, Diseases; Interleukin-8; Male; Neutrophils; Sputum

Chronic obstructive pulmonary disease (COPD) is a heterogeneous disease characterized by a combination of 3 different disorders, namely chronic asthma, chronic bronchitis and pulmonary emphysema, sometimes simultaneously present in the same subject.. The aim of our study was to compare sputum inflammatory markers in patients with different phenotypes of chronic airway obstruction.. Forty-five subjects (forced expiratory volume in 1 s/vital capacity, FEV(1)/VC: 58.8 +/- 12.2%; FEV(1): 49.8 +/- 11.5% of predicted) were classified as chronic asthma (n = 10) or COPD patients (n = 35); the latter were further divided into patients with prevalent chronic bronchitis (n = 24) or prevalent pulmonary emphysema (n = 11) according to clinical history and functional evaluation, and underwent sputum induction and analysis of inflammatory cell and soluble mediators.. Patients with chronic asthma showed higher sputum eosinophil percentages and eosinophilic cationic protein levels, and lower neutrophil percentages and neutrophil elastase levels than COPD patients. Neutrophil chemotactic activity in sputum supernatant was higher than the pool of normal subjects both in chronic asthma and COPD patients. No difference in sputum cell composition and levels of soluble mediators was observed between patients with chronic bronchitis and patients with pulmonary emphysema.. The pattern of airway inflammation in induced sputum of patients with chronic asthma is different from that of COPD patients with a similar FEV(1). Among COPD patients, however, the pattern of airway inflammation shows no difference between chronic bronchitis and patients with pulmonary emphysema, suggesting that these two clinically and functionally distinct phenotypes share a common inflammatory pattern as detected by induced sputum.

Topics: Aged; Asthma; Biomarkers; Bronchitis, Chronic; Eosinophil Cationic Protein; Female; Granulocytes; Humans; Interleukin-8; Leukocyte Elastase; Male; Middle Aged; Phenotype; Pulmonary Emphysema; Sputum

Previous studies on the relationship of chronic bronchitis to incident airflow limitation and all-cause mortality have provided conflicting results, with positive findings reported mainly by studies that included populations of young adults. This study sought to determine whether having chronic cough and sputum production in the absence of airflow limitation is associated with onset of airflow limitation, all-cause mortality and serum levels of C-reactive protein (CRP) and interleukin-8 (IL-8), and whether subjects' age influences these relationships.. 1412 participants in the long-term Tucson Epidemiological Study of Airway Obstructive Disease who at enrolment (1972-1973) were 21-80 years old and had FEV(1)/FVC (forced expiratory volume in 1 s/forced vital capacity) > or = 70% and no asthma were identified. Chronic bronchitis was defined as cough and phlegm production on most days for > or = 3 months in two or more consecutive years. Incidence of airflow limitation was defined as the first follow-up survey with FEV(1)/FVC <70%. Serum IL-8 and CRP levels were measured in cryopreserved samples from the enrolment survey.. After adjusting for covariates, chronic bronchitis at enrolment significantly increased the risk for incident airflow limitation and all-cause mortality among subjects <50 years old (HR 2.2, 95% CI 1.3 to 3.8; and HR 2.2, 95% CI 1.3 to 3.8; respectively), but not among subjects > or = 50 years old (HR 0.9, 95% CI 0.6 to 1.4; and HR 1.0, 95% CI 0.7 to 1.3). Chronic bronchitis was associated with increased IL-8 and CRP serum levels only among subjects <50 years old.. Among adults <50 years old, chronic bronchitis unaccompanied by airflow limitation may represent an early marker of susceptibility to the effects of cigarette smoking on systemic inflammation and long-term risk for chronic obstructive pulmonary disease and all-cause mortality.

Topics: Adult; Age of Onset; Aged; Aged, 80 and over; Airway Obstruction; Bronchitis, Chronic; C-Reactive Protein; Chronic Disease; Cough; Female; Forced Expiratory Volume; Humans; Interleukin-8; Male; Middle Aged; Risk Factors; Sputum; Vital Capacity; Young Adult

Polymorphonuclear neutrophil (PMN)-dominated inflammation is prominent in the airways of subjects with cystic fibrosis (CF) and chronic bronchitis (CB). Interleukin (IL)-8, myeloperoxidase (MPO), and DNA are markers of neutrophilic inflammation. We hypothesized that sputum MPO, DNA, and IL-8 concentrations would negatively correlate with pulmonary function and sputum transportability.. We measured pulmonary function and analyzed sputum IL-8, MPO, and DNA concentrations, as well as the transport properties of sputum samples obtained from 16 subjects with CF and 15 subjects with CB. We also evaluated changes in these measurements in paired sputum samples from these subjects obtained 2 to 12 months apart.. IL-8 and MPO concentrations in the sputum of CF subjects was inversely correlated with FEV(1) percent predicted (IL-8: r = -0.40; p = 0.003; MPO: r = -0.38; p = 0.003) and FVC percent predicted (IL-8: r = -0.4; p = 0.02; MPO: r = -0.4; p = 0.02). IL-8 and DNA concentrations were inversely correlated with sputum cough transportability (CTR) [IL-8: r = -0.4; p = 0.02; DNA: r = -0.36; p = 0.048]. Changes in DNA concentration in sputum samples from CF subjects over time were inversely correlated with changes in FEV(1) percent predicted (r = -0.58; p = 0.02), FVC percent predicted (r = -0.74; p = 0.002), and CTR (r = -0.59; p = 0.02). There was no correlation among pulmonary function, sputum properties, and inflammatory markers in the sputum from subjects with CB.. The sputum concentrations of IL-8, MPO, and DNA appear to be closely associated with pulmonary function in subjects with CF but not in subjects with CB.

Topics: Adolescent; Adult; Aged; Biomarkers; Bronchitis, Chronic; Child; Cough; Cystic Fibrosis; DNA; Enzyme-Linked Immunosorbent Assay; Female; Forced Expiratory Volume; Humans; Interleukin-8; Male; Middle Aged; Peroxidase; Respiratory Function Tests; Severity of Illness Index; Sputum

A reactive ability of immunocompetent cells was assessed by the level of cytokines TNF alpha and IL-8 estimated by enzyme immunoassay ("Genzyme diagnostics" kit) in 18 patients with chronic obstructive bronchitis (mean age 58 +/- 4.2 years, mean duration of the disease 11.2 +/- 5.2 years) and 15 control patients matched for age, with normal external respiration function, free of chronic bronchopulmonary pathology and allergic diseases. The greatest differences in cytokine levels were registered between the control group and patients with moderate generalized irreversible obstruction. These patients had similar basal and E. coli LPS induced synthesis of the above cytokines showing the lack of cell reserves, adequate immune response to exogenic antigen.

Topics: Bronchitis, Chronic; Cytokines; Humans; Interleukin-8; Lung Diseases, Obstructive; Tumor Necrosis Factor-alpha

Topics: Anti-Bacterial Agents; Bacterial Infections; Bronchitis, Chronic; Cytokines; Humans; Interleukin-8; Leukocyte Elastase

A rat model with chronic bronchitis was replicated by passive inhalation of cigarette smoking fume to study its long-term effects on lung injury and nitric oxide (NO), interluekin-6 (IL-6), interleukin-8 (IL-8).. Levels of nitrogen dioxide (NO(2)) and nitrogen trioxide (NO(3)) were measured with spectrophotometry in rats indicating their level of nitric oxide (NO). Levels of IL-6 and IL-8 were determined by enzyme-linked immunosorbent assay (ELISA).. Levels of NO in serum, bronchial alveolar lavage fluid (BALF) and lung tissue in the smoking group were significantly lower than those in the normal controls (P < 0.01). But, levels of IL-6 and IL-8 were higher in the smoking group than those in the controls.. Long-term passive smoking could cause injury of lung tissue to certain extent, reduction in secretion of NO in endothelial cells and damage to pulmonary vessels.

Topics: Animals; Bronchitis, Chronic; Bronchoalveolar Lavage Fluid; Interleukin-6; Interleukin-8; Lung; Male; Nitric Oxide; Pulmonary Disease, Chronic Obstructive; Rats; Rats, Wistar; Tobacco Smoke Pollution