• Tuberculosis and Respiratory Diseases
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• v.71 no.3
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• pp.163-171
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• 2011

Recently published articles on interstitial lung disease (ILD) have focused on the accurate diagnosis of idiopathic pulmonary fibrosis (IPF), serum biomarkers, acute exacerbation of IPF, the prognostic factors of ILD and the trial of new treatment. In particular, reports on the serum biomarkers such as CC-chemokine ligand 18, surfactant protein, circulating fibrocytes, and acute exacerbation of IPF are sufficient to be mentioned here. Pirfenidone therapy is the most important trial for the treatment of IPF. Other newer treatment trials such as interferon-gamma, sildenafil and imatinib have been reported to be unsuccessful. On the other hand, the sirolimus trial for lymphangioleiomyomatosis is promising. Combined pulmonary fibrosis and emphysema and IgG4-related disease are established to be the new disease entities of ILD.

• Environmental and Resource Economics Review
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• v.11 no.4
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• pp.659-687
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• 2002

This study used a discrete choice model to investigate an association between air pollution and hospital visits for acute respiratory symptoms with the national health interview survey conducted in 1998 in South Korea. The results showed that $NO_2$ and TSP were significantly related to hospital visits in a single-pollutant model, but when they were simultaneously considered, only $NO_2$ remained significant. It was estimated as $NO_2$ level increased by 10%(0.0027ppm) from 0.027ppm (the mean $NO_2$ level), hospital visits increase by 0.176%. This study also measured respondent's out-of-pocket expense and the time cost for commuting and waiting for the visit. We found that on the average, out-of-pocket expense is 5,600 won per hospital visit, but the total cost per hospital visit is measured at 33,440 won with time cost of commuting and waiting at 27,840 won. Time cost was over 63.6~83.3% of the total cost per hospital visit.

• Tuberculosis and Respiratory Diseases
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• v.64 no.3
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• pp.206-209
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• 2008

Tracheal tuberculosis is a relatively uncommon form of tuberculosis and can result in acute tracheal obstruction early in the disease course. This is a report of a case of tracheal tuberculosis with unusual clinical presentation.

• Tuberculosis and Respiratory Diseases
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• v.44 no.6
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• pp.1408-1413
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• 1997

A 68 year-old male was admitted with complaint of dyspnea and nonproductive cough which developed 6 hours after accidental inhalation of nitrogen dioxide. On admission, acute pulmonary edema and severe hypoxemia were found. With oxygen and bronchodilator therapy, diffuse alveolar consolitation and his dyspnea were improved from the following day. He was discharged at 8th hospital day with prednisolone 30mg daily for prevention of bronchiolitis obliterans. During 6 weeks of follow up, there was no evidence of bronchiolitis obliterans.

• Pediatric Gastroenterology, Hepatology & Nutrition
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• v.24 no.2
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• pp.119-126
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• 2021

The aim of our paper was to present current knowledge, review literature and available practice guidelines of international hepatological associations regarding the effect of severe acute respiratory syndrome coronavirus 2 coronavirus on the liver, patients with underline liver disease, awaiting on liver transplantation (LTx) or being after LTx in the pandemic coronavirus disease 2019 area.

• IMMUNE NETWORK
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• v.21 no.1
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• pp.7.1-7.24
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• 2021

The coronavirus disease 2019 (COVID-19) pandemic caused by the severe acute respiratory syndrome coronavirus 2 has severely impacted global health and economy. There is currently no effective approved treatment for COVID-19; although vaccines have been granted emergency use authorization in several countries, they are currently only administered to high-risk individuals, thereby leaving a gap in virus control measures. The scientific and clinical communities and drug manufacturers have collaborated to speed up the discovery of potential therapies for COVID-19 by taking advantage of currently approved drugs as well as investigatory agents in clinical trials. In this review, we stratified some of these candidates based on their potential targets in the progression of COVID-19 and discuss some of the results of ongoing clinical evaluations.

• Pediatric Infection and Vaccine
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• v.10 no.1
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• pp.102-113
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• 2003

Purpose : Acute respiratory tract infections are the most common illnesses in children. The great majority of these infections involving lower respiratory tracts infections(LRTI) are caused by respiratory viruses such as respiratory syncytial virus(RSV), parainfluenza virus (PIV), influenza virus(INF), adenovirus(ADV), etc. Our purpose of this study was to examine the seasonal occurrence, clinical and laboratory features of each viral infections. Methods : Nasopharyngeal aspirates(NPA) were collected from 913 hospitalized children on the first day of admission. They were all admitted to Hangang Sacred Heart hospital and diagnosed as LRTIs. The study period was from September 1998 to August 2002. Specimens were inoculated onto HEp-2 cell, LLC-MK2 cell and MDCK cell. Viruses were detected by immunofluorescent method performed at day 10 postinoculation. Respiratory viruses were detected in 251(27%) cases. Medical records of 208 cases diagnosed as acute LRTIs were all taken reviewed and analyzed. Results : The identified pathogens were RSV 122 cases(58%), PIV 30 cases(14%), INFA 20 cases(10%), INFB 21 cases(11%) and ADV 15 cases(7%) during the study period. Outbreaks of RSV infections occurred every year but mostly on December, 1998 and November, 1999. LRTIs by PIV and ADV occurred during all seasons of the year. INFA was isolated moslty on March, 1999 and January, 2000. INFB infections occurred largely on April, 2002. The clinical diagnoses were bronchiolitis 88 cases(43%), pneumonia 87 cases(42%), croup 19 cases(9%) and tracheobronchitis 14 cases(6%). Common symptoms and signs were cough, rhinorrhea, sputum and fever. WBC counts in peripheral blood showed normal findings in 123 cases(59%). Each viral infections also showed some differences in auscultatory findings and chest X-ray findings. Conclusion : We learned that viruses are one of the major and important etiologic agents of acute LRTIs of children in Korea. However, we still need to find out more about its characteristic clinical features and continue studying on their seasonal occurrence to focus on their management and also prevention.

• Tuberculosis and Respiratory Diseases
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• v.76 no.4
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• pp.188-191
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• 2014

Acute eosinophilic pneumonia (AEP) is a disease characterized by an acute febrile onset, eosinophilia in bronchoalveolar lavage fluid, and a dramatic response to corticosteroids. Although many studies have reported a close relationship between direct cigarette smoking and AEP, few studies have identified an association between passive smoking and AEP. Here, we report a case of AEP in a 19-year-old female with cough, fever, and dyspnea after 4 weeks of intense exposure to secondhand smoke for 6 to 8 hours a day in an enclosed area.

• Tuberculosis and Respiratory Diseases
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• v.70 no.6
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• pp.482-489
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• 2011

Background: Based on the assertion that apocynin diminishes acute lung injury (ALI) by inhibition of NADPH oxidase, the effect of apocynin was tested in interleukin-$1{\alpha}$ (IL-1)-induced ALI in rats. Methods: IL-1 was insufflated into the trachea of Sprague-Dawley rats to induce ALI, and apocynin (8 mg/kg) was given intravenously for inhibition of NADPH oxidase. In addition, we determined whether apocynin inhibited generation of superoxide anions from isolated human neutrophils. Five hours after IL-1 instillation, lung injury parameters, expression of cytosolic phospholipase A2 (cPLA2) by cells from bronchoalveolar lavage (BAL), an index of oxidative stress in lung tissues (${\gamma}$-glutamyltranspeptidase, activity), and ultrastructure of alveolar type II (AT II) cells were evaluated. Results: Apocynin decreased the generation of free radicals from phorbol myristate (PMA)-activated neutrophils in vitro, but did not ameliorate ALI. IL-1 induced enhancement of the expression of cPLA2 on neutrophils was not altered by apocynin. Conclusion: Apocynin induced suppression of the generation of superoxide anions from neutrophils by inhibition of NADPH oxidase does not attenuate IL-1-induced ALI in rats.

• Journal of The Korean Society of Clinical Toxicology
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• v.5 no.2
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• pp.119-122
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• 2007

Paraquat poisoning is a fatal type of herbicide intoxication. It is characterized by multi-organ failure and pulmonary fibrosis with respiratory failure. Intravenous and intramuscular injection of paraquat is rarely described. However, We encountered two fatal cases of acute poisoning caused by paraquat injection. Two patients were admitted to our emergency unit after intravenous and intramuscular injection of 23.8% paraquat (about 476 mg of paraquat). A 37-year-old man diluted 2 ml of 23.8% paraquat solution with 1 ml of normal saline and injected it both intravenously into his left antecubital fossa and intramuscularly into his abdomen in a suicide attempt. He died 5 days later from respiratory failure and acute renal failure. A 92-year-old man was injected intravenously into his right antecubital fossa by his grandson with 2 ml of 23.8% paraquat solution diluted with 1 ml of normal saline. He died 2 days later from early circulatory collapse and multi-organ failure (metabolic acidosis, acute renal failure, coagulopathy). Intravenous and intramuscular injection with a small quantity of paraquat resulted in fatal toxicity in our patients.