• Title/Summary/Keyword: Lung, diseases

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Inflammation, Injury and Transcription Factors in Chronic Lung Diseases: Therapeutic Targets

  • Rahman, Irfan
    • Proceedings of the PSK Conference
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    • 2002.10a
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    • pp.175-176
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    • 2002
  • Airway inflammation is a characteristic of many lung disorders including asthma, chronic obstructive pulmonary disease (COPD) and idiopathic pulmonary fibrosis. All these diseases involve the recruitment of immune and inflammatory cells to the lungs leading to systemic and local chronic inflammation and oxidative stress. (omitted)

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Technical Aspects of Endobronchial Ultrasound-Guided Transbronchial Needle Aspiration

  • Kang, Hyo Jae;Hwangbo, Bin
    • Tuberculosis and Respiratory Diseases
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    • v.75 no.4
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    • pp.135-139
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    • 2013
  • Endobronchial ultrasound-guided transbronchial needle aspiration (EBUS-TBNA) is becoming a standard method for invasive mediastinal staging and for the diagnosis of paratracheal and peribronchial lesions. It is essential to understand the technical aspects of EBUS-TBNA to ensure safe and efficient procedures. In this review, we discuss the practical aspects to be considered during EBUS-TBNA, including anesthesia, manipulation of equipment, understanding mediastinal ultrasound images, target selection, number of aspirations needed per target, sample handling, and complications.

Advanced Bronchoscopic Diagnostic Techniques in Lung Cancer

  • Dongil Park
    • Tuberculosis and Respiratory Diseases
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    • v.87 no.3
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    • pp.282-291
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    • 2024
  • The increasing incidence of incidental pulmonary nodules necessitates effective biopsy techniques for accurate diagnosis and treatment planning. This paper reviews the widely used advanced bronchoscopic techniques, such as radial endobronchial ultrasound-guided transbronchial lung biopsy, electromagnetic navigation bronchoscopy, and the cutting-edge robotic-assisted bronchoscopy. In addition, the cryobiopsy technique, which can enhance diagnostic yield by combination with conventional biopsy tools, is described for application to peripheral pulmonary lesions and mediastinal lesions, respectively.

A Study on Chief Lung-Disorder Diseases of Yeong-Chu Gyeong-maek Chapter (${\ulcorner}$靈樞 經脈編${\Ircorner}$) and Dongui-Bogam (${\ulcorner}$東醫寶鑑${\Ircorner}$) on the Relationship of Sasang Constitutional Diseases ("영추(靈樞).경맥편(經脈編)${\Ircorner}$ 및 주요 폐병증(肺病證)과 사상체질병증(四象體質病證)의 비교.고찰)

  • Kim, Oh-Young;Kim, Il-Hwan;Park, Hye-Sun;Kim, Hyo-Soo;Cho, Jae-Seung;Yim, Chi-Hye
    • Journal of Sasang Constitutional Medicine
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    • v.18 no.2
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    • pp.1-14
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    • 2006
  • 1. Objectives This study is purposed to classify deficiency syndrome(虛證) and Excess syndrome(實證) of chief lung-disorder diseases. 2. Methods It was researched on the comparative and literal study about the relation to Yeong-Chu Gyeong-maek Chapter (${\ulcorner}$靈樞 經脈編${\Ircorner}$) and Dongui-Bogam (${\ulcorner}$東醫寶鑑${\Ircorner}$) and Dongui-Susebowon (${\ulcorner}$東醫壽世保元${\Ircorner}$) in chief lung-disorder symptoms or diseases. 3. Results and Conclusions (1) The chief lung-disorder diseases of Yeong-Chu Gyeong-maek Chapter (${\ulcorner}$靈樞 經脈編${\Ircorner}$), Dongui-Bogam (${\ulcorner}$東醫寶鑑${\Ircorner}$) and Dongui-Susebowon (${\ulcorner}$東醫壽世保元${\Ircorner}$) are asthma(喘), coughing(咳), fullness in the chest(胸滿), sweating symptoms(汗出), cold-heat symptoms(寒熱), dysphoria(煩躁) and sneezing. (2) Asthma symptom(喘) was shown to Soeumin's 4 exterior deficiency diseases, Taeumin's 1 exterior deficiency disease and 1 interior excess disease, and Soyangin's 1 interior excess disease. (3) Coughing symptom(咳) was shown to Soeumin's 1 extrerior deficiency disease and Taeumin's 1 interior excess disease. (4) Fullness in the chest(胸滿) was shown co Soyangin's 4 exterior excess diseases. (5) Sweating symptoms(汗出) was shown to Soeumin's 10 exterior deficiency diseases, Taeumins's 1 exterior deficiency disease, and Soyangin's 1 exterior defecieny disease. (6) Cold-heat symptoms(寒熱) was shown to Soyangin's 4 exterior excess diseases. (7) Dysphoria(煩躁) was shown co Soeumin's 1 exterior deficiency disease and 8 interior deficiency diseases, Taeumin's 1 interior excess disease, and Soyangin's 4 exterior excess and interior excess diseases. (8) Sneezing symptom was shown to Taeumin's 1 exterior excess disease.

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Automated Lung Segmentation on Chest Computed Tomography Images with Extensive Lung Parenchymal Abnormalities Using a Deep Neural Network

  • Seung-Jin Yoo;Soon Ho Yoon;Jong Hyuk Lee;Ki Hwan Kim;Hyoung In Choi;Sang Joon Park;Jin Mo Goo
    • Korean Journal of Radiology
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    • v.22 no.3
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    • pp.476-488
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    • 2021
  • Objective: We aimed to develop a deep neural network for segmenting lung parenchyma with extensive pathological conditions on non-contrast chest computed tomography (CT) images. Materials and Methods: Thin-section non-contrast chest CT images from 203 patients (115 males, 88 females; age range, 31-89 years) between January 2017 and May 2017 were included in the study, of which 150 cases had extensive lung parenchymal disease involving more than 40% of the parenchymal area. Parenchymal diseases included interstitial lung disease (ILD), emphysema, nontuberculous mycobacterial lung disease, tuberculous destroyed lung, pneumonia, lung cancer, and other diseases. Five experienced radiologists manually drew the margin of the lungs, slice by slice, on CT images. The dataset used to develop the network consisted of 157 cases for training, 20 cases for development, and 26 cases for internal validation. Two-dimensional (2D) U-Net and three-dimensional (3D) U-Net models were used for the task. The network was trained to segment the lung parenchyma as a whole and segment the right and left lung separately. The University Hospitals of Geneva ILD dataset, which contained high-resolution CT images of ILD, was used for external validation. Results: The Dice similarity coefficients for internal validation were 99.6 ± 0.3% (2D U-Net whole lung model), 99.5 ± 0.3% (2D U-Net separate lung model), 99.4 ± 0.5% (3D U-Net whole lung model), and 99.4 ± 0.5% (3D U-Net separate lung model). The Dice similarity coefficients for the external validation dataset were 98.4 ± 1.0% (2D U-Net whole lung model) and 98.4 ± 1.0% (2D U-Net separate lung model). In 31 cases, where the extent of ILD was larger than 75% of the lung parenchymal area, the Dice similarity coefficients were 97.9 ± 1.3% (2D U-Net whole lung model) and 98.0 ± 1.2% (2D U-Net separate lung model). Conclusion: The deep neural network achieved excellent performance in automatically delineating the boundaries of lung parenchyma with extensive pathological conditions on non-contrast chest CT images.

Parthenolide inhibits osteoclast differentiation and bone resorbing activity by down-regulation of NFATc1 induction and c-Fos stability, during RANKL-mediated osteoclastogenesis

  • Kim, Ju-Young;Cheon, Yoon-Hee;Yoon, Kwon-Ha;Lee, Myeung Su;Oh, Jaemin
    • BMB Reports
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    • v.47 no.8
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    • pp.451-456
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    • 2014
  • Parthenolide, a natural product derived from Feverfew, prevents septic shock and inflammation. We aimed to identify the effects of parthenolide on the RANKL (receptor activator of $NF-{\kappa}B$ ligand)-induced differentiation and bone resorbing activity of osteoclasts. In this study, parthenolide dose-dependently inhibited RANKL-mediated osteoclast differentiation in BMMs, without any evidence of cytotoxicity and the phosphorylation of p38, ERK, and $I{\kappa}B$, as well as $I{\kappa}B$ degradation by RANKL treatment. Parthenolide suppressed the expression of NFATc1, OSCAR, TRAP, DC-STAMP, and cathepsin K in RANKL-treated BMMs. Furthermore, parthenolide down-regulated the stability of c-Fos protein, but could not suppress the expression of c-Fos. Overexpression of NFATc1 and c-Fos in BMMs reversed the inhibitory effect of parthenolide on RANKL-mediated osteoclast differentiation. Parthenolide also inhibited the bone resorbing activity of mature osteoclasts. Parthenolide inhibits the differentiation and bone-resolving activity of osteoclast by RANKL, suggesting its potential therapeutic value for bone destructive disorders associated with osteoclast-mediated bone resorption.

Factors Associated with Health-Related Quality of Life in Tuberculosis Patients Referred to the National Research Institute of Tuberculosis and Lung Disease in Tehran

  • Kakhki, Ali Darvishpoor;Masjedi, Mohammad Reza
    • Tuberculosis and Respiratory Diseases
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    • v.78 no.4
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    • pp.309-314
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    • 2015
  • Background: In tuberculosis (TB) patients, health-related quality of life (HRQoL) is significant in self-management, which in turn can be effective in therapeutic acceptance and prevention of treatment failure due to multi-drug resistant TB. This study was conducted to evaluate HRQoL and associated factors in TB patients referred to the National Research Institute of Tuberculosis and Lung Disease (NRITLD). Methods: In this study, patients were selected from TB clinics of the NRITLD in Tehran. In addition to an Iranian version of the Short-Form Health Survey (SF-36), demographic and disease characteristic questionnaires were used for data collection. The data were then analyzed using SPSS software. Results: Two hundred five TB patients, with the average age of $42.33{\pm}17.64$ years, participated in this study. The HRQoL scores in different domains ranged from $14.68{\pm}11.60$ for role limitations due to emotional problems to $46.99{\pm}13.25$ for general health perceptions. The variables of sex, marital status, education, job status, place of residence, and cigarette smoking, influenced the HRQoL scores in different dimensions. Conclusion: According to the study findings are the important variables that influenced the HRQoL of TB patients. The consideration of its can improve the HRQoL of TB patients.

New Era of Management Concept on Pulmonary Fibrosis with Revisiting Framework of Interstitial Lung Diseases

  • Azuma, Arata;Richeldi, Luca
    • Tuberculosis and Respiratory Diseases
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    • v.83 no.3
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    • pp.195-200
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    • 2020
  • The disease concept of interstitial lung disease with idiopathic pulmonary fibrosis at its core has been relied on for many years depending on morphological classification. The separation of non-specific interstitial pneumonia with a relatively good prognosis from usual interstitial pneumonia is also based on the perception that morphology enables predict the prognosis. Beginning with dust-exposed lungs, initially, interstitial pneumonia is classified by anatomical pathology. Diagnostic imaging has dramatically improved the diagnostic technology for surviving patients through the introduction of high-resolution computed tomography scan. And now, with the introduction of therapeutics, the direction of diagnosis is turning. It can be broadly classified into to make known the importance of early diagnosis, and to understand the importance of predicting the speed of progression/deterioration of pathological conditions. For this reason, the insight of "early lesions" has been discussed. There are reports that the presence or absence of interstitial lung abnormalities affects the prognosis. Searching for a biomarker is another prognostic indicator search. However, as is the case with many chronic diseases, pathological conditions that progress linearly are extremely rare. Rather, it progresses while changing in response to environmental factors. In interstitial lung disease, deterioration of respiratory functions most closely reflect prognosis. Treatment is determined by combining dynamic indicators as faithful indicators of restrictive impairments. Reconsidering the history being classified under the disease concept, the need to reorganize treatment targets based on common pathological phenotype is under discussed. What is the disease concept? That aspect changes with the discussion of improving prognosis.