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조석현 ( Seok Hyun Cho ) 대한천식알레르기학회 2013 Allergy Asthma & Respiratory Disease Vol.1 No.4
Rhinitis is a common airway disease that can affect patient`s quality of life and social activities. Rhinitis comprises heterogenous diseases and classified as allergic rhinitis (AR) or nonallergic rhinitis (NAR) based on the clinical history, skin prick test, and serum-specific IgE to aeroallergens. It is important to differentiate between AR and NAR, as management differs for each. However, classification of NAR is controversial and the specific mechanisms responsible for NAR remain unclear. Recently, the entopy of local allergic rhinitis (LAR) has been raised if positive response to nasal provocation test, and elevated specific IgE and inflammatory mediators such as tryptase and eosinophilic cationic peptide in the nasal lavage fluids are shown in patients with NAR. About 47.62.5% of patients previously diagnosed with NAR actually have LAR. LAR shares similar nasal symptoms with AR, such as itching, sneezing, rhinorrhea, and nasal obstruction. LAR shows a good response to nasal corticosteroids and oral ant histamines. However, its natural history and role of immunotherapy need to be elucidated.
조석현 ( Seok Hyun Cho ) 대한소아알레르기호흡기학회(구 대한소아알레르기 및 호흡기학회) 1991 소아알레르기 및 호흡기학회지 Vol.1 No.4
Rhinitis is a common airway disease that can affect patient’s quality of life and social activities. Rhinitis comprises heterogenous diseases and classified as allergic rhinitis (AR) or nonallergic rhinitis (NAR) based on the clinical history, skin prick test, and serum-specific IgE to aeroallergens. It is important to differentiate between AR and NAR, as management differs for each. However, classification of NAR is controversial and the specific mechanisms responsible for NAR remain unclear. Recently, the entopy of local allergic rhinitis (LAR) has been raised if positive response to nasal provocation test, and elevated specific IgE and inflammatory mediators such as tryptase and eosinophilic cationic peptide in the nasal lavage fluids are shown in patients with NAR. About 47.62.5% of patients previously diagnosed with NAR actually have LAR. LAR shares similar nasal symptoms with AR, such as itching, sneezing, rhinorrhea, and nasal obstruction. LAR shows a good response to nasal corticosteroids and oral antihistamines. However, its natural history and role of immunotherapy need to be elucidated. (Allergy Asthma Respir Dis 2013;1:303-308)
조석현,박종준,정문화,박수환,이문철,Cho Seok-Hyun,Park Jong-Jun,Jung Mun-Hwa,Park Su-Hwan,Lee Mun-Cheul 한국섬유공학회 2006 한국섬유공학회지 Vol.43 No.2
Traditional Korean ramie fabric is called Hansan-mosi. In Korea, many people have known Hansan-mosi. Hansan-mosi is produced by splitting, connecting, length-setting, skein-making, treating, winding and weaving from Taemosi. Recently, in spite of increased demand on the traditional fabrics by eco-friendly living pattern, Hansan-mosi is still very expensive and not widely popularized due to simple color and formation. Hansan-mosi has traditional handicraft shape and intangible cultural assets. In this study, ramie-spinning and carded wool-spining process, were used to develop technology that can produce Hansan ramie fabrics in large quantities. Alkali degumming was conduced for remove pectin quality ($19{\sim}30%$) of Taemosi that was obtained through decortication from trunk of ramie plant. Optimum condition was achieved at 5% concentration, 120 minutes, $95^{\circ}C$ temperature. Degummed ramie fiber was made to sliver, we producted 100% Hansan-mosi spinning yarn with low count yarn (10 lea) to high count yarn (80 lea).
Sulfur Dioxide 가스 흡입 후 흰쥐 기관 점막에서 Laminin의 발현에 대한 연구
이형석,유연희,조석현,김경래,정호삼,Lee, Hyung-Seok,Yu, Yean-Hee,Cho, Seok-Hyun,Kim, Kyung-Rae,Chung, Ho-Sam 대한기관식도과학회 2000 大韓氣管食道科學會誌 Vol.6 No.1
Background and Objectives : The concentration of sulfur dioxide($SO_2$) gas in the ambient air appears increasing in the industry and urban area day by day. It was known that $SO_2$ is noxious gas. $SO_2$ can be irritating to the eyes, nose, throat, upper respiratory tract and skin. It produces sulfurous acid on contact with water and is extremely irritating to the nasopharynx and respiratory tract. Laminin is a family of extracellular matrix glycoproteins localized in the basement membrane that separates epithelial cells from the underlying stroma. The biological activities of laminin are to promote cell migration, wound healing, growth and differentiation. Meterials and Methods : The histologic changes and the expression of laminin in tracheal mucosa sacrificed at every weeks (to 7 weeks) after continued $SO_2$ exposure of 250ppm for 30 minutes a day were studied in rats. Results : Pathologic tissue was formed at the tracheal mucosa and the underlying tissue by the infiltration of monocytes and epithelium was transformed to the single cell layered epithelium above 5 weeks after exposure. At the 6 weeks after exposure, epithelial cells were partially lost and epithelial cell layer was transformed to be leaf-shaped. Submucosal tissue was transformed to be lymphatic tissue. An intense positive staining for laminin was found in apical cytoplasm and lateral surface of the normal epithelial cells and basement membrane but at the 5 and 6 weeks after exposure, laminin activity was decreased to the moderate activity. At the 7 weeks after exposure, laminin activity was decreased to the weak activity. Conclusion : Our finding suggests that $SO_2$ makes histologic damage on the tracheal mucosa and decreases immunoreactivity for laminin. Longer duration of the exposure of $SO_2$ makes more histologic damage on the tracheal mucosa and decreases immunoreactivity for laminin.
백서 기관 점막의$SO_2$ 노출 후 회복과정의 조직학적 관찰 및 laminin의 발현에 관한 연구
이형석,태경,조석현,한장희,정진석,Lee, Hyung-Seok,Tae, Kyung,Cho, Seok-Hyun,Han, Jang-Hee,Jeong, Jin-Suck 대한기관식도과학회 2002 大韓氣管食道科學會誌 Vol.8 No.1
Background and Objectives : Sulfur dioxide gas is one of the major airborne Pollutants noxious to human in industrialized countries. The most vulnerable areas in the human respiratory system were the trachea and main bronchi and a gradient of decreasing damage was observed in the peripheral tracheobronchial tree. Induced functional alteration was increased mucosal permeability, and morphological changes were epithelial sloughing, intracellular edema, mitochondrial swelling, widened intercellular spaces, and ciliary cytoplamic extrusions. The laminins are a family of extracellular matrix glycoproteins localized in the basement membrane. Their primary role is cell-matrix attachment, but many additional biologic activities, including Promoting cell growth and migration, tumor growth and metastasis, wound repair, and graft survival, have been demonstrated. Materials and Methods : Histologic changes and expression of laminin in tracheal mucosa sacrificed at 1 day, 2 day, 3 day, 1 week, 2 weeks, and 3 weeks after continued SO2 exposure of 250 ppm for 30 minutes a day(to 7week) were studied in rats. In this study, mild immune reaction for laminin was noted at the apical cytoplasm of epithelial cells and basement membrane one day after a 7 week $SO_2$ exposure. The cilia and nucleoi of epithelial cells were normal and no immune reaction was noted in Goblet cells. The lamina propria of the tracheal tissue was infiltrated by monocytes and lymphocytes. Results : At 24 hours after exposure, all tracheal cells except Goblet cells revealed a mild immune reaction for laminin. No immune reactions were noted in the basement membrane. At 72 hours after exposure, mild or moderate immune reactions for laminin was seen in the tracheal cell cytoplasm. Irregular faint immune reaction for laminin was noted in the basement membrane. At 1 week after exposure, strong immune reaction for laminin was detected over all tracheal cells, and the basement membrane was seen clearly. At 2~3 weeks after exposure, strong immune reaction for laminin was seen in all tracheal epithelial cells except Goblet cells and a mild immune reaction was partly revealed in the basement membrane. Conclusion : Our study suggests that 502 produces histologic damage on the tracheal mucosa. Longer duration after exposure of $SO_2$ makes more progressive healing on the tracheal mucosa and increased immunoreactivity for laminin.
원발병소의 외과적 절제 9년 후 경부 림프절에 전이된 경구개 선암종 1예
이형석(Hyung Seok Lee),전성하(Sung Ha Jeon),홍동균(Dong Kyun Hong),조석현(Seok Hyun Cho),태경(Kyung Tae) 대한두경부종양학회 2004 대한두경부 종양학회지 Vol.20 No.1
Primary malignancies of hard palate are rare, espicially adenocarcinoma of minor salivary gland in hard palate. The clinical stage of the tumor and its histologic grade at the time of treatment were significant predictors of survival. A 33-year-old woman was diagnosed with stage II, polymorphous low-grade adenocarcinoma of the hard palate and treated with surgery. We thougt that she would have excellent prognosis. After that, there was no definite evidence of recurrence during 3 months. Since then, the patient herself decided to discontunue follow-up. 9 years after that she came to the hospital due to both submandibular mass without any sign of local recurrence. CT scan and biopsy of the mass revealed multiple cervical metastatic adenocarcinoma without distant metastasis and the histologic findings were similar to that of the primary hard palate adenocarcinoma. So, we present this case with the review of literature.
우희숙(Woo, Hee Sook),조석현(Cho, Seok Hyun),김병국(Kim, Byung Guk) 대한공간정보학회 2016 한국지형공간정보학회 학술대회 Vol.2016 No.10
범죄발생률이 지속적으로 증가하면서 단영상(스마트 폰, CCTV, 파노라마카메라 등)에서 취득한 영상을 이용하여 특정 객체의 위치정보를 취득하는 연구가 확대되고 있다. 취득한 영상에서의 객체분석, 상황인지 등의 문제점을 보완하기 위해 본 연구에서는 단영상(스마트 폰, CCTV, 파노라마카메라 등)에서 취득한 영상과 음향카메라에서 취득한 소리정보 융합하여 특정 객체의 위치를 결정하는 기술 방안을 제시하고자 한다.