• Korean Journal of Head & Neck Oncology
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• v.25 no.2
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• pp.160-162
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• 2009

Dermoid cysts are benign neoplasm that is derived from both ectoderm and mesoderm. They may be found at various sites of the body, but are extremely rare to occur in the lower neck. We present the case of a 22-year old woman with a midline cystic mass anterior to the cervical trachea. The mass was excised under local anesthesia. Histopathologically the diagnosis was confirmed as a dermoid cyst.

• 대한생식의학회:학술대회논문집
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• 2001.06a
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• pp.70-71
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• 2001

• 대한생식의학회:학술대회논문집
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• 2001.06a
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• pp.73.1-73.1
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• 2001

• 대한생식의학회:학술대회논문집
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• 2001.06a
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• pp.68.1-68.1
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• 2001

• Proceedings of the PSK Conference
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• 2003.04a
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• pp.252.1-252.1
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• 2003

Systematic investigations to develop an efficient enantioselective synthetic method for a-alkyl-alanine by the catalytic phase-transfer alkylation were performed. The alkylation of 2-naphthyl aldimine tert-butyl ester, 1 E with RbOH and O(9)-allyl-N-2'3'4'-trifluorobenzylhydrocinchonidinium bromide, 6, at \ulcorner5 \ulcorner\ulcorner showed the highest enantioselectivities, up to 96％ ee.

• Natural Product Sciences
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• v.20 no.1
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• pp.51-57
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• 2014

In this study, the anti-inflammatory effects of ethanol extract of Rumex crispus L. and its fractions were investigated in RAW 264.7 macrophages. To evaluate the anti-inflammatory effects of extract, we studied nitric oxide (NO), prostaglandin $E_2$ ($PGE_2$), and tumor necrosis factor-alpha ($TNF-{\alpha}$) levels in RAW 264.7 cells. The ethanol extract of R. crispus L. significantly decreased NO production and the levels of other inflammatory factors, such as PGE2 and $TNF-{\alpha}$, in lipopolysaccharide (LPS)-stimulated macrophages in a dose-dependent manner. We also assessed the inducible nitric oxide synthase (iNOS) and the cyclooxygenase 2 (COX-2) protein expression by western blot. Ethyl acetate fraction of R. crispus L. had the strongest anti-inflammatory effect. These results suggest that ethyl acetate extract of R. crispus L. might be beneficial in the treatment of chronic inflammatory diseases.

• Journal of Korean Academy of Nursing
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• v.42 no.7
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• pp.1095-1104
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• 2012

Purpose: The purpose of this study was to investigate the contribution of actual cardiovascular disease (CVD) risk, as well as, individual, psychosocial, and work-related factors as predictors of CVD risk perception among Korean blue-collar workers. Methods: The participants were 238 Korean blue-collar workers who worked in small companies. Data were collected through a survey; anthropometric and blood pressure measures; and blood sampling for lipid levels. Results: Blue-collar workers had high actual CVD risk and low CVD risk perception. The significant predictors of risk perception included perceived health status, alcohol consumption, knowledge of CVD risk, actual CVD risk, decision latitude, and shift work. The model explained 26% of the variance in CVD risk perception. Conclusion: The result suggests when occupational health nurses are giving routine health examination in small companies, they can enhance CVD risk perception in blue-collar workers by providing essential information about CVD risk factors and personal counseling on the individual worker's CVD risk status.

• The Korean Journal of Emergency Medical Services
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• v.15 no.1
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• pp.25-35
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• 2011

Purpose & Method : This purpose of this paper was to show the importance of paramedics. The trauma patients receiving a temporary treatment from emergency medical technician filled out a self-administered questionnaire. The questionnaire consisted of the satisfaction for EMS. The data collection was from October 23 to November 12, 2006. The patients were in the Kyeonggi province hospital having more than 500 beds. At the time of discharge, the questionnaire forms were distributed. Results : Males showed higher satisfaction than females when they had a paramedics, and this indicated statistically significant difference(p<.05). The groups showing higher satisfaction for EMT 1 practice included patients over 40 years old, educated under high school, and income over 2 million won. Before the trauma patients were treated, they were satisfied with short waiting time less than 10 minutes. They showed higher satisfaction within 2 hours duration. Conclusion : Summing up the above result, it was found that the group treated by an emergency medical technician showed higher satisfaction than the group not treated by an emergency medical technician. Therefore, it is necessary to arrange paramedics in emergency medical centers to improve satisfaction with emergency medical services. And since it is a crucial factor that affects patient's satisfaction significantly, it is urgent to increase the roles of emergency medical technicians and lay the foundation for legal institutions.

• BMB Reports
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• v.45 no.10
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• pp.571-576
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• 2012

Radiotherapy is considered to cause detrimental effects on bone tissue eventually increasing bone loss and fracture risk. However, there is a great controversy on the real effects of irradiation itself on osteoblasts, and the mechanisms by which irradiation affects osteoblast differentiation and mineralization are not completely understood. We explored how X-ray radiation influences differentiation and bone-specific gene expression in mouse calvarial osteoblasts. Irradiation at 2 Gy not only increased differentiation and mineralization of the cells, but also upregulated the expression of alkaline phosphatase, type I collagen, osteopontin, and osteocalcin at early stages of differentiation. However, irradiation at higher doses (>2 Gy) did not stimulate osteoblast differentiation, rather it suppressed DNA synthesis by the cells without a toxic effect. Additional experiments suggested that transforming growth factor-beta 1 and runt-transcription factor 2 play important roles in irradiation- stimulated bone differentiation by acting as upstream regulators of bone-specific markers.

• Korean Journal of Bronchoesophagology
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• v.15 no.2
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• pp.71-74
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• 2009

Myxoma is a benign mesenchymal neoplasm that can occur in the head and neck. Laryngeal myxoma is extremely rare and easily confused with a laryngeal polyp. The common clinical presentation is hoarseness, dysphonia, dyspnea and dysphagia depending on their size and location. Treatment for laryngeal myxoma is complete surgical excision with surrounding normal tissue. To our knowledge, 11 laryngeal myxomas have been reported in the English literature, and all patients except only 1 case were male. We report the second female case of myxoma on a vocal cord with a review of literature.