• 제목/요약/키워드: Pulmonary epithelium

검색결과 46건 처리시간 0.04초

맥문동탕(麥門冬湯)이 $SO_2$에 의(依)한 흰쥐의 호흡기손상(呼吸器損傷)에 미치는 영향(影響) (Effects of Maecmoondongtang on the Pulmonary Function of $SO_2-Exposed $ Rats)

  • 이상석;정승기;이형구
    • 대한한의학회지
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    • 제15권2호
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    • pp.173-183
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    • 1994
  • The results about effects of Maecmoondongtang on the pulmonary function of $SO_2$ exposed rats were summerized as follows: 1. Maecmoondongtang reavealed significant effect on decrease of the lung weight in pulmomary edema of rats. 2. Maecmoondongtang reavealed very significant effect on decrease of the TBA value of lung. 3. It was recognized Maecmoondongtang had signiftcant effect on decrease of glycoprotein contents in trachea. 4. It was recognized maecmoondongtang had significant effect on decrease of mucos area in tracheal epithelium. 5. Maecmoondongtang had effects on recovery of the cillia cells of tracheal epithelium and inhibition of mucous secretion. According to the above result. it was recognized Gamimaecdongtang had significant effect on decrease of lung weight in pulmonary edema. the TBA value. glycoprotein contents in trachea. and mucous area in tracheal epithelium. and recovery of the cillia cells of tracheal epithelium. and inhibition of mucous secretion. So I think we can take advantage of this medicine very usefully for treatment of pulmonary edema. pheumonia. acute and chronic bronchitis etc.

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Sprague-Dawley 랫트에 자연발생한 Pulmonary Keratinizing Cyst의 병리조직학적 관찰 (Histopathological Observation of Spontaneous Pulmonary Keratinizing Cyst in Sprague-Dawley Rat)

  • 손화영
    • 한국수의병리학회지
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    • 제1권2호
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    • pp.135-138
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    • 1997
  • A pulmonary keratinizing cyst was found incidentally in a 30-week-old female Sprague-Dawley rat. The cyst was lobe of the lung, lined by stratified squamous epithelium and filled with concentric layers of desquamated keratin. The wall consisted of 2-4 layers of well differenciated squamous cells. The adjacent lung tissues were slightly compressed but not otherwise damaged by the cyst. There was no inflammatory reaction or mitotic figures observed in the cyst.

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커지는 양상을 보인 기관지내 샘유두종 1예 (A Case of Growing Endobronchial Glandular Papilloma)

  • 최병진;황진원;정재현;이승헌;이영민;정수진;송종운;김현동;이현경
    • Tuberculosis and Respiratory Diseases
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    • 제67권2호
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    • pp.131-134
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    • 2009
  • Pulmonary papillomas are rare benign epithelial neoplasms arising in bronchial surface epithelium. They are categorized by a variety of cell types including squamous, glandular, and mixed squamous and glandular type. Among them, glandular papilloma is extremely rare and has not been reported in Korea. The patient was a 52 year-old man presenting with a 4-months' history of recurrent hemoptysis. Bronchofiberoscopy revealed a whitish, glistening, and polypoid mass lesion at the proximal bronchus in the basal segment of the left lower lung. Bronchoscopic biopsy was performed; papillary fronds lined by ciliated or nonciliated pseudostratified columnar epithelium were noted on histologic findings. We present the first case of glandular papilloma in Korea. Two years later, the patient visited our hospital again due to hemoptysis. On follow-up bronchoscopy, a mass that had been found previously showed an increase in size.

Bleomycin 유도 폐 섬유화에 있어서 성장인자 및 Cytokine의 역할 (Role of Growth Factors and Cytokines on Bleomycin Induced Pulmonary Fibrosis)

  • 이용희;정순희;안철민;김성규;조상호
    • Tuberculosis and Respiratory Diseases
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    • 제44권4호
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    • pp.871-888
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    • 1997
  • 연구배경 : 특발성 폐 섬유화확 병인론으로 폐포염과 폐에 침윤한 염증세포 및 폐 조직자체의 실질세포들이 성장인자를 포함한 다양한 cytokine을 분비하여 실질조직을 구성하는 세포에 손상을 야기함으로써 종국에는 섬유화를 초래하는 것으로 이해하고 있다. 그러나 이들에 대한 개괄적인 연구가 부족하고 매개체 각각에 대한 단편적인 논문들뿐이어서 본 연구에서는 BLM유도 폐 손상및 섬유화의 발생기전에 있어서 IL-1, IL-6, TNF-$\alpha$와 TGF-${\beta}_1$, PDGF, bFGF들의 역할을 규명하고자 하였다. 방 법 : Wistar백서를 정상대조군, BLM투여군, BLM과 비타민 E병합투여군으로 나누었고 BLM 투여후 제 1, 2, 3, 4, 5, 7, 14, 21, 28일에 각각 도살한 다음 기관지폐포 세척술을 시행하여 시기별 총 세포수, 세포 구성성분비율을 살펴보았고 TGF-${\beta}_1$, PDGF, bFGF, IL-1, IL-6, TNF-$\alpha$에 대한 면역조직화학 염색, TGF-${\beta}_1$ mRNA에 대한 동소보합결합검사를 시행, 각 매개체의 생성소, 발현분포 및 정도를 분석하였다. 결 과 : BLM 투여후 1~7 일에 중성구와 기관지상피세포에서 생성된 IL-1, IL-6는 폐손상부위로 원하는 것으로 생각되며 7일이내에 기관지상피세포에서의 IL-1, IL-6 의 양성발현은 기관지상피세포가 BLM 유도 폐 섬유화시 기도주변에서 일어나는 염증 및 면역반응을 항진 및 유지시키는 간접증거로 생각된다. TNF-$\alpha$는 BLM투여후 1~5일에는 기관지상피세포, 중성구가 주생성소로 폐손상부위로의 염증세포의 이동에 주요역할을 하는 것으로 생각되며 7~28일에는 대식세포가 주생성소로서 섬유화를 촉진시키는 것으로 생각된다. TGF-${\beta}_1$은 기관지 상피세포, 대식세포가 주생성소로서 섬유모세포가 표적세포로 생각되며 섬유모세포가 세포외 기질을 생성하도록 자극하고 대식세포에서 유리된 PDGF와 함께 섬유모세포의 증식을 자극한다. 대식세포 및 섬유모세포에서 유리된 bFGF는 TGF-${\beta}_1$과 함께 교원질과 같은 세포외기질의 생성을 자극하는 것으로 여겨진다. 비타민 E와 BLM 병합투여군의 경우 6가지 성장인자 및 cytokine의 발현세포는 같았으나 발현세포수는 극히 미미하였고 trichrome염색상 섬유화도 미약하였다. 결 론 : BLM으로 인한 혈관내피 및 폐포상피세포 손상이후 침윤한 중성구 및 기관지 상피세포가 IL-1, IL-6, TNF-$\alpha$를 분비하여 BLM투여 1~7 일에 많은 수의 중성구를 동원하도록 유도하며 이들이 유리하는 다양한 효소 및 산소유리기가 폐의 정상구조를 파괴하여 섬유화를 시작하게 하는 것으로 생각한다. 손상이 진행됨에 따라 BLM투여 7~28 일에 대식세포가 유리하는 TGF-${\beta}_1$, PDGF, bFGF, TNF-$\alpha$는 섬유모세포를 자극, 이들의 증식을 유도하고 또한 세포외기질의 생성증가를 유도하여 폐 섬유화를 진행시키는 것으로 사료되며 TNF-$\alpha$는 BLM투여후 전 기간에 걸쳐 다수의 세포에서 발현된 점으로 미루어 섬유화에 있어서 TGF-${\beta}_1$ 못지않은 중요한 역할을 하는 것으로 여겨진다. 또한 비타민 E가 BLM유도 폐 손상으로 인한 폐 섬유화의 정도를 감소시키는 것으로 생각한다.

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Pulmonary Carcinosarcoma within Bronchogenic Cyst: 1례 보고 (Pulmonary Carcinosarcoma within Bronchogenic Cyst)

  • 권오춘
    • Journal of Chest Surgery
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    • 제18권2호
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    • pp.341-344
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    • 1985
  • Carcinosarcoma is an unusual and rarest neoplasm in man, consisting of carcinomatous parenchyme and sarcomatous stroma. Two clinical types of carcinosarcoma were present. One type of tumor was centrally located [endobronchial type], infrequent metastasis, and better prognosis than parenchymal type. The other type was peripherally located [parenchymal type], frequent metastasis, and poor prognosis. The histogenesis of carcinosarcoma is many hypothesis, but controversial; 1] sarcomatous degeneration of stroma, 2] intermingling of simultaneously arising carcinoma & sarcoma, 3] multiple primary tumor, 4] blastomatous changes in hamartoma, 5] stromal reaction to squamous cell carcinoma, 6] true & collision carcinosarcoma. In this case, 52 year-old male patient was hospitalized due to intermittent hemoptysis & known pulmonary lesions. Since 1968, chest PA showed round haziness within cyst & multiple cyst on RUL & RLL. Radical pneumonectomy was performed and histopathology showed carcinosarcoma, surrounded by bronchial epithelium. The patient maintain general well-being without clinical evidence of recurrence till now.

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폐의 선천성 낭포성 유선종치험 2례 (Congenital Cystic Adenomatoid Malformation of the Lung [2 cases])

  • 조광현
    • Journal of Chest Surgery
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    • 제18권4호
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    • pp.785-791
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    • 1985
  • The congenital cystic adenomatoid malformation [C.C.A.M.] of the lung is a rare lesion consisted of multiple cysts in the pulmonary parenchyma lined cuboidal or columnar epithelium. The C.C.A.M. presents clinically in three ways:[1] stillborn or perinatal death, [2] progressive respiratory distress in the newborn, and [3] acute and chronic pulmonary nfections in the older infant and child. We recently experienced two cases of C.C.A.M. of the lung, and have good surgical results. The first case was 29 days old male and the second case was 16 month old female who have been suffered from severe respiratory difficulty and pulmonary infection repeatedly each other. The lobectomies were performed, and the postoperative course was uneventful.

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목단피(牧丹皮)가 천식(喘息)유발 cytokine 분비와 호산구 chemotaxis에 미치는 영향 (Moutan Cortex Radicis contributes to the chemotaxis of eosinophils and secretion of cytokines in A549 human epithelial cells)

  • 문성훈;정승기;이형구;정희재
    • 대한한방내과학회지
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    • 제26권1호
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    • pp.199-212
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    • 2005
  • Objective : Airway inflammation is now regarded as a defining feature of asthma. The importance of eosinophits in the airway inflammation of asthma patients is widely recognized, and eosinophils mobilization in the respiratory epithelium is activated by chemoattractants and cytokines. This study was designed to examine the extent of the ability of Moutan Cortex Radicis to inhibit eosinophil chemotaxis of pulmonary epithelium after allergic stimulation. Material and Methods : Water extracts of Moutan Cortex Radicis and pulmonary epithelial cell lines A549(human type II-like epithelial cells) and human eosinophils were used. Cytotoxic effects of Moutan Cortex Radicis were estimated via MTS assay, and the effects of Moutan Cortex Radicis on chemokines from prestimulated A549 cells were estimated by sandwich ELISA and RT-PCR. Chemotaxis assay on prestimulated eosinophils treated with Moutan Cortex Radicis. was conducted Result : In this study we demonstrated that $TNF-{\alpha}$ and IL-4, $IL-1{\beta}$ induced the accumulation of chemokines' mRNA in the pulmonary epithelial cell lines A549 in a dose-dependent manner. Chemokines of eotaxin, ICAM-1, YCAM-1, IL-8, IL-16 were inhibited by Moutan Cortex Radicis in a dose dependent manner, but RANTES showed no inhibition due to Moutan Cortex Radicis. Eosinophil migration was inhibited at high concentrations of Moutan Cortex Radicis. Conculusion : These findings are indicative of supression of chemokines accomplished by Moutan Cortex Radicis treatment, demonstrating the potential therapeutic value of Moutan Cortex Radicis for treating diseases such as asthma.

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Effect of Pyunkang-tang on Inflammatory Aspects of Chronic Obstructive Pulmonary Disease in a Rat Model

  • Seo, Hyo-Seok;Lee, Hyun Jae;Lee, Choong Jae
    • Natural Product Sciences
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    • 제25권2호
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    • pp.103-110
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    • 2019
  • We investigated the anti-inflammatory effect of Pyunkang-tang extract (PGT), a complex herbal extract based on traditional Chinese medicine that is used in Korea for controlling diverse pulmonary diseases, on cigarette smoke-induced pulmonary pathology in a rat model of chronic obstructive pulmonary disease (COPD). The constituents of PGT were Lonicerae japonica, Liriope platyphylla, Adenophora triphilla, Xantium strumarinum, Selaginella tamariscina and Rehmannia glutinosa. Rats were exposed by inhalation to a mixture of cigarette smoke extract (CSE) and sulfur dioxide for three weeks to induce COPD-like pulmonary inflammation. PGT was administered orally to rats and pathological changes to the pulmonary system were examined in each group of animals through measurement of tumor necrosis factor-${\alpha}$ (TNF-${\alpha}$) and interleukin-6 (IL-6) levels in bronchoalveolar lavage fluid (BALF) at 21 days post-CSE treatment. The effect of PGT on the hypersecretion of pulmonary mucin in rats was assessed by quantification of the amount of mucus secreted and by examining histopathologic changes in tracheal epithelium. Confluent NCI-H292 cells were pretreated with PGT for 30 min and then stimulated with CSE plus PMA (phorbol 12-myristate 13-acetate), for 24 h. The MUC5AC mucin gene expression was measured by RT-PCR. Production of MUC5AC mucin protein was measured by ELISA. The results were as follows: (1) PGT inhibited CSE-induced pulmonary inflammation as shown by decreased TNF-${\alpha}$ and IL-6 levels in BALF; (2) PGT inhibited the hypersecretion of pulmonary mucin and normalized the increased amount of mucosubstances in goblet cells of the CSE-induced COPD rat model; (3) PGT inhibited CSE-induced MUC5AC mucin production and gene expression in vitro in NCI-H292 cells, a human airway epithelial cell line. These results suggest that PGT might regulate the inflammatory aspects of COPD in a rat model.

흉막에 위치한 카르시노이드 종양 (Carcinoid Tumor Located in the Parietal Pleura)

  • 홍장미;김영태;성숙환;김주현;박효진;정두현
    • Journal of Chest Surgery
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    • 제36권1호
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    • pp.47-50
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    • 2003
  • 폐의 카르시노이드 종양은 기관지 상피의 Kulchitsky 세포에서 유래하는 신경내분비 종양이다. 폐의 카르시노이드는 대개는 중심부에 위치한다. 그러나, 비전형적 카르시노이드는 주변부에 위치하기도 하며 조직학적으로 악성도가 높다 흉막에서 기원한 카르시노이드에 대한 보고는 거의 없는 상태로 저자들은 벽측 흉막에 위치하며 폐실질내로의 침윤이 없이 흉벽을 침윤하는 전형적인 카르시노이드를 보고하는 바이다.