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Antibacterial Activity of Ulva lactuca againstMethicillin-Resistant Staphylococcus aureus(MRSA)
이재화,이동군,이상현,하종명,하배진,김성구,이재화 한국생물공학회 2007 Biotechnology and Bioprocess Engineering Vol.12 No.5
The in vitro antimicrobial activity of the marine green algae Ulva lactuca was examined against gram-positive bacteria, gram-negative bacteria, and a fungus. The ethyl-ether extract of algae exhibited a broad-spectrum of antibacterial activity, but not antifungal activity against Candida albicans. In particular, the U. lactuca extract showed strong activity against the bacterium methicillin-resistant Staphylococcus aureus (MRSA). This result confirms the potential use of seaweed extracts as a source of antibacterial compounds or as a health-promoting food for aquaculture.
악성 근상피종의 세침흡인 세포학적 소견 -1 예 보고-
이재화,박진경,허방,Lee, Jae-Hwa,Park, Jean-Kyung,Hur, Bang 대한세포병리학회 2002 대한세포병리학회지 Vol.13 No.1
Malignant myoepithelioma (myoepithelial carcinoma), is a very rare malignant epithelial accounting for less than 1% of all salivary gland tumors and has an intermediate malignant potential. We report a case of malignant myoepithelioma arising in the left parotid giand in a 54-year-old man, which was difficult to differentiate from pleomorphic adenoma and other malignant salivary gland neoplasms. Fine needle aspiration cytology of the parotid gland showed cellular smear, composed of overlapped sheets and clusters or individually scattered tumor cells without any acinic or ductal structures. The tumor cells were rather uniform, with distinct cell borders and moderate amount of cytoplasm. The eccentrically located nuclei were oval to round and pleomorphic and showed prominent nucleoli. A few clear cells were noted in the cellular aggregates Metachromatic matrix was seen between individual tumor cells in a lacelike fashion, resembling pleomorphic adenoma. According to the immunohistochemical staining, we recognized that the component cells are myoeplthelial in nature, showing reactivity for the S-100 protein, vimentin, and actin.