No abstract available.
Asthma*

BACKGROUND: Rhinovirus infection of the airways results in increased permeability of the airway vascular endothelium with the influx of plasma proteins, including lipids such as LDL. In vitro studies on the effect of oxLDL on leukocytes has shown many proinflammatory effects on multiple leukocytes. We hypothesized that oxLDL is one mechanism for recruiting granulocytes to the airways during a RV infection. Therefore, chemotaxis and transendothelial migration, in response to nLDL, was determined for these granulocytes. METHODS: nLDL was oxidized with 5mM Cu2SO4 for 20-24 hours. 3-5×10(5) cells were loaded into the Transwell filter while the chemotatic agonists were placed in the lower well for chemotaxis. Confluent monolayers on HPMEC were grown on Transwell filters for transendothelial migration. The filters were washed and eosinophils and neutrophils loaded on to the filter with the chemotatic agonist was were placed in the lower well. The wells were incubated for 3 hours. The number of migrating cells was counted on a hemocytometer. RESULTS: OxLDL, but not nLDL, is chemotatic for eosinophils and neutrophils. The level of granulocytes chemotaxis was dependent on both the concentration of LDL and its degree of oxidation. OxLDL stimulates eosinophil and neutrophils migration across HPMEC monolayers (±IL-1β preactivation) in a dose dependent manner. CONCLUSION: Increased vascular permeability during a RV infection may lead to the influx and oxidation of LDL. The resulting oxLDL. is one possible mechanism for the recruitment of neutrophils and eosinophils to the airway interstitial matrix. Once in the airways, granulocytes can further interact with oxLDL to promote airway inflammation.
Blood Proteins ; Capillary Permeability ; Chemotaxis ; Endothelium, Vascular ; Eosinophils* ; Granulocytes ; Inflammation ; Leukocytes ; Neutrophils* ; Permeability ; Rhinovirus ; Transendothelial and Transepithelial Migration

BACKGROUND: Antibiotic therapy has proven an effective method of treatment on the majority of patients with pyogenic lung abscess and infected bulla. When medical therapy has failed, pulmonary resection is the current generally recommended therapy. But nowdays complications of percutaneous tube drainage has decreased with the use of small catheter. So we evaluated the effect of percutaneous tube drainage as an alternative therapy to the pyogenic lung abscess and infected bulls refractory to medical therapy in preference of the pulmonary resection. METHOD: Nine cases of the lung abscess and three cases of infected bulls which has large cavity size over 6cm, and has underlying diseases such as lung cancer, diabetes mellitus, refractory to over 1 week of antibiotics, were performed percutaneous tube drainage with All Purpose Drainage catheter(Medi-tech, Watertown, USA) under fluoroscopy. RESULTS: All the cases except one case which complicated empyema was improved clinically. Fever was down within 4days of percutaneous tube drainage(mean : 1.9days). Mean duration of tube drainage was 9.9days. CONCLUSION: Percutaneous tube drainage is an effective and relatively safe procedure in the management of lung abscesses that do not response to medical therapy We speculate this procedure should be considered as an alternative therapy for the lung abscess refractory to medical therapy in preference to the surgery. The safety and effectiveness of this procedure in infected bulla should be evaluated with an additional study.
Anti-Bacterial Agents ; Catheters ; Diabetes Mellitus ; Drainage* ; Empyema ; Fever ; Fluoroscopy ; Humans ; Lung Abscess* ; Lung Neoplasms ; Lung*

The aspergillus tracheobronchitis is distinctive manifestation of invasive aspergillosis, in which infection is limited completely or predominantly to the tracheobronchial tree. It accounts for about 7 to 10 percent of cases of invasive disease. Grossly, such disease may take the mucosal exudate and obstruct partially the airway lumen or completely the occlusive mucous/fungus plugs. Microscopically, the superficial portion of the airway wall is acutely inflamed and contain fungal hyphae. However, infection is often limited to the mucosa. We report a case of aspergillus tracheobrochits in a 54 year-old man who presented cough, progressive dyspnea with wheezing, and mucus plug. Bronchoscopy showed mucosal exudate and plug.Bronchoscopic biopsy showed aspergillus hyphae and inflammation in the mucosa. He was successfully treated with itraconazole.
Aspergillosis ; Aspergillus* ; Biopsy ; Bronchoscopy ; Cough ; Dyspnea ; Exudates and Transudates ; Humans ; Hyphae ; Inflammation ; Itraconazole ; Mucous Membrane ; Mucus ; Respiratory Sounds ; Trees

BACKGROUND: Cardiogenic pulmonary edema increases nonspecific airway responsiveness in humans and animals. Increased extravascular lung water from overt pulmonary edema to subclinical interstitial edema is a common finding in patients with chronic renal failure. Several studies carried out to assess pulmonary function disturbances in this condition have documented a reduction in forced expiratory volume that usually reverses after hemodialysis, suggesting airway edema as the underlying mechanism. This interstitial edema may also lead to nonspecific bronchial hyperre- sponsiveness. We hypothesized that patients with chronic renal failure may present nonspecific bronchial hyperresponsiveness due to subclinical interstitial pulmonary edema. METHODS: We studied 18 chronic renal failure undergoing regular hemodialysis 3 times a week (New York Heart Association Class II) without concomittent disease. These patients were checked pulmonary function test and metacholine provocation test before hemodialysis and same procedure was repeated if responsive, after hemodialysis. RESULTS: 1) 12 out of 18 patients before hemodialysis were reactive in metacholine provocation test (66.7%) before hemodialysis. This airway hyperresponsiveness were decreased after hemodialysis. 2) Pulmonary function was improved after hemodialysis and change in FEV1 was correlated with change in weight(r= -0.62, p<0.01). 3) There was a close correlation between log PD20 and FEF25, which is one of the variables of the peripheral airways(r=0.58, p<0.05). CONCLUSION: We speculated interstitial pulmonary edema may play a significant role in bronchial hyperresponsiveness and lung function impaired in patients with chronic renal failure.
Animals ; Edema ; Extravascular Lung Water ; Forced Expiratory Volume ; Heart ; Humans ; Kidney Failure, Chronic* ; Lung ; Pulmonary Edema ; Renal Dialysis* ; Respiratory Function Tests

BACKGROUND: The cell mediated immunity has an important role in the pathogenesis of tuberculosis. sIL-2R has been known as a sensitive marker of T lymphocyte activation. Elevated serum levels of sIL-2R have been found in patients with lymphoproliferative disorders, organ transplantation, autoimmune diseases, and various granulomatous diseases. Elevated levels of sIL-2R have been also found in the seam and pleural fluid of the patients with tuberculosis. To evaluate the diagnostic value of sIL-2R in the differentiation of tuberculous pleurisy and. nontuberculous pleurisy. We measured the level of sIL-2R in the sera and pleural fluids of 12 patients with tuberculous pleurisy and 32 patients with nontuberculous pleurisy. METHOD: Samples of pleural fluid and serum were centrifuged at 2500 rpm for 10 min to remove cell pellets. Soluble R-2R was measured with a sandwitch enzyme immunoassay using the Cellfree r Interleukin-2 Receptor Test kit( T-cell science, Inc. Cambridge, MA). RESULTS: The results obtained were as follows: 1) The sIL-2R level in pleural fluid of the patients with tuberculous pleurisy was higher than that of patients with nontuberculous pleurisy(P<0.005). 2) When the sIL-2R level above 5,000 u/ml in pleural fluid was used as the cut-off value to diagnose tuberculous pleurisy, it had a sensitivity of 84.6% and a specificity of 90.9%. 3) The sIL-2R level in the sera of the patients with tuberculous pleurisy was higher than that of patients with bacterial pleural effusions and normal control group(P<0.05) and there was no difference of levels compared with malignant pleural effusions and transudative pleural effusions(P>0.05). 4) In patients with tuberculous pleurisy, the mean concentration of sIL-2R in pleural fluid was higher than that in serum(P<0.005). CONCLUSION: These findings suggest that the measurement of elevated levels of pleural fluid sIL-2R in tuberculous pleurisy may be useful in the differential diagnosis between patients with tuberculous pleurisy and nontuberculous pleurisy.
Autoimmune Diseases ; Diagnosis, Differential ; Humans ; Immunity, Cellular ; Immunoenzyme Techniques ; Interleukin-2* ; Lymphocyte Activation ; Lymphoproliferative Disorders ; Organ Transplantation ; Pleural Effusion ; Pleural Effusion, Malignant ; Pleurisy* ; Sensitivity and Specificity ; T-Lymphocytes ; Transplants ; Tuberculosis ; Tuberculosis, Pleural*

OBJECTIVES: To investigate lifestyle-related predictors of prediabetes and diabetes in young adults aged 20–39 years using data from the 2014-2016 Korea National Health and Nutrition Examination Survey (KNHANES). METHODS: This study is a cross-sectional, secondary analysis using the KNHANES data. Participants were classified into normal group (fasting plasma glucose [FPG] <100 mg/dL and/or hemoglobin A1c [HbA1c] <5.7%), prediabetes group (FPG 100-125 mg/dL and/or HbA1c 5.7-6.4%), and diabetes group (FPG ≥126 mg/dL and/or HbA1c ≥ 6.5%). The data were statistically analyzed using SPSS software. RESULTS: Out of 4,190 participants, 27.7% of men and 16.3% of women were in the prediabetes group and 1.4% of men and 1.3% of women were in the diabetes group. Logistic regression confirmed that age and obesity are predictors of prediabetes and diabetes in both men and women. Additionally low physical activity and low education level are predictors of prediabetes in men and women, respectively (p<0.05). CONCLUSIONS This study has found that age and increased obesity are predictors of elevated blood glucose in young men and women in their 20s and 30s. A strategy to lower obesity by promoting physical activity in men in their 30s is essential to prevent metabolic syndrome and progression to prediabetes.

OBJECTIVES: To investigate lifestyle-related predictors of prediabetes and diabetes in young adults aged 20–39 years using data from the 2014-2016 Korea National Health and Nutrition Examination Survey (KNHANES). METHODS: This study is a cross-sectional, secondary analysis using the KNHANES data. Participants were classified into normal group (fasting plasma glucose [FPG] <100 mg/dL and/or hemoglobin A1c [HbA1c] <5.7%), prediabetes group (FPG 100-125 mg/dL and/or HbA1c 5.7-6.4%), and diabetes group (FPG ≥126 mg/dL and/or HbA1c ≥ 6.5%). The data were statistically analyzed using SPSS software. RESULTS: Out of 4,190 participants, 27.7% of men and 16.3% of women were in the prediabetes group and 1.4% of men and 1.3% of women were in the diabetes group. Logistic regression confirmed that age and obesity are predictors of prediabetes and diabetes in both men and women. Additionally low physical activity and low education level are predictors of prediabetes in men and women, respectively (p<0.05). CONCLUSIONS This study has found that age and increased obesity are predictors of elevated blood glucose in young men and women in their 20s and 30s. A strategy to lower obesity by promoting physical activity in men in their 30s is essential to prevent metabolic syndrome and progression to prediabetes.

Purpose: Sedentary office workers lack physical activity and have a high prevalence of metabolic syndrome (MetS). This study attempted to develop a remote physical activity improvement program for sedentary office workers and verify its effectiveness by applying it to male workers in their 30s and 40s with MetS. Methods: This study used a randomized control group pretesteposttest design, and the study sample was 75 male workers recruited from an information and technology company. They were randomly assigned to either the intervention (n = 38) or control (n = 37) group. The remote physical activity improvement program was constructed based on the self-regulation theory emphasizing autonomy, and was conducted through non-face-to-face Zoom once a week for a total of 12 weeks. Health education, exercise training, small group meetings, and individual counseling were provided, and tailored text messages were sent to participants every day to encourage them to reflect on their lifestyle and practice exercise. Results: The remote physical activity program significantly increased basic psychological needs (Z = -7.55, p < .001), intrinsic motivation (Z = -6.94, p < .001), health promotion behavior, (Z = -6.63, p < .001), and physical and physiological indicators (p < .05) in the intervention group compared to those in the control group. Conclusions In managing MetS among office workers, it was found that remote education using the Zoom platform was effective, even during the coronavirus pandemic. As a strategy for health education in the workplace, remote education content needs to be developed and applied.

Pulmonary aspergillosis is classified as a saprophytic, allergic, and invasive disease. Chronic necrotizing pulmonary aspergillosis is categorized as an invasive pulmonary aspergillosis. Most invasive pulmonary aspergillosis have acute and toxic clinical features but chronic necrotizing pulmonary aspergillosis is characterized by a sub-acute infection, most commonly seen in patients with altered local defense system from preexisting pulmonary disease of in mild immunocompromised patients. Pulmonary artery aneurysm due to this infection is termed as a mycotic aneurysm, etiology of which are tuberculosis, syphilis, bacteria and fungus. We report a case chronic necrotizing pulmonary aspergillosis complicating pulmonary aneurysm is a 62 year-old man who was presented with cough, sputum, and fever. Chest radiographs showed a rapid, progressive cavitary lesion and pulmonary artery aneurysm. Angioinvastion of aspergillus was revealed by pathology after operative removal of left upper lobe containing the pulmonary artery aneurysm. He was treated with itraconazole.
Aneurysm* ; Aneurysm, Infected ; Aspergillus ; Bacteria ; Cough ; Fever ; Fungi ; Humans ; Immunocompromised Host ; Invasive Pulmonary Aspergillosis* ; Itraconazole ; Lung Diseases ; Pathology ; Pulmonary Artery* ; Pulmonary Aspergillosis ; Radiography, Thoracic ; Sputum ; Syphilis ; Tuberculosis