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양기숙,김지연 숙명여자대학교 약학연구소 2001 약학논문집-숙명여자대학교 Vol.17 No.-
Acanthopanax species(Araliaceae) traditionally has been used as analgesics, stimulant of immune system, and replenishment of body functions. Acanthopanax divaricatus var. albeofructus is a new variety and indigenous plant to Korea. The antioxidant activities of leaf and root bark of A. divaricatus var. albeofructus were determined by l,l-diphenyl-2-picrylhydrazyl (DPPH) method and thiobarbituric acid reactive substance (TBARS) assay on human plasma low density lipoprotein (LDL) in vitro system. The extracts of leaf and root bark showed antioxidant activities and the leaf exhibited more potentially in Cu^(2+) induced LDL oxidation than root bark.
이지연,양시용,고은지,이승구,김시관,조왕식,송민동 建國大學校 自然科學硏究所 2002 建國自然科學硏究誌 Vol.13 No.2
본 연구가 VRSA에 대한 신규 항생물질 생산 균주를 얻기 위하여 실시하였다. 국내외에 채취한 토양시료에서 분리한 방선균 중, 임상분리 VRSA와 돌연변이 유발 VRSA에 대해 항균성을 나타내는 JY-24를 선별하였다. 선발 균주는 원통형의 포자 모양을 갖고 있으며, Bennett's 배지에 배양시 aerial mycelium color는 흰색을 나타냈으며, reverse side color는 대체로 노란색을 나타내었다. 항균물질 생산을 위한 탄소원으로는 fructose, mannose, 질소원으로는 yeast extract가 가장 우수하였으며 glucose의 첨가로 항균 물질 생산성이 증가하는 것으로 나타났다. 최적 초기 pH는 pH 7로 나타났으며, 28 ℃, 37℃, 45 ℃의 온도에서 균이 성장하는 것으로 나타났다. 또한 배양기간에 따라 항균물질 생산성을 조사한 결과, 임상분리 균주에 대해 5일 배양 시 가장 높았으나, 3일 배양과 7일 배양 시 동일한 생산성을 나타내 생산속도가 빠르며, 안정한 물질인 것이 파악되었다. 향후 균주동정 및 항균물질 정제에 관한 연구를 수행하고자 한다. An antibiotic substance producing strain JY-24, effective to the VRSA (Vancomycin-resistant Staphylococcus aureus), was isolated from soil. The spore chain of JY-24 was cylindrical, and its sulface was smooth. The aerial mass color of the strain was white, and its reverse side color was yellow. The strain did not produce soluble pigment. For the production antibiotics, fructose, mannose and yeast extract were favorable as carbon and nitrogen sources. Optimal initial pH for the production of the antibiotic was pH 7. Accumulation of the antibiotic in the culture broth reached at maximal level after 5 days cultivation in Bennett's medium.
박지훈,이상혁,김희,이재호,박성재,지삼룡,양성연,박은택,이연재,설상영,정정명,강미선 白中央醫療院 2005 仁濟醫學 Vol.26 No.1
Fungus such as Candida albicans is a normal flora that is frequently found in the oral cavity, gastrointestinal tract, genitourinary tract, vaginal mucosa in a normal person. However, candida can cause opportunistic infection in an immune compromised host. Candidiasis has broad spectrum of disease from mucocutaneous infection to invasive or disseminated infection. But, it is rarely reported that candida is associaed with gastrointestinal tract disease in a healthy adult. The case of gastric ulcer associated with candida particularly in a health adult is reported with relevant literature.
Ji-Youn Kim,Mi-Sol Park,박정은,Seung-Sook Yang,Min-Jeong Kim,Sun-Ae Mok,Hye-Ji Kim,Chan-Ho Kim,Ki-Jung Kim,Ja-Won Cho 대한예방치과학회 2019 International Journal of Clinical Preventive Denti Vol.15 No.1
Objective: This study was carried out to investigate the effect of dentifrice containing green tea extract, sodium monofluorophosphate and calcium carbonate on dental plaque and gingivitis by periodic measurements. Methods: Oral examination items were measured by papillary marginal attached (PMA) index, Talbott’s gingival index, patient hygiene performance (PHP) index, and Turesky’s plaque index. Results: PMA index showed statistically significant difference in the control group (p<0.05). Talbott’s gingival index measurements showed statistically significant differences in the control group from 8 weeks after the start of the study (p<0.05). As a result of PHP index measurement, statistically significant differences were observed in the experimental group from the control group after 4 weeks (p<0.01). And Turesky’s plaque index measurement, statistically significant differences were observed in the experimental group from the control group after 4 weeks (p<0.01). Conclusion: These results suggest that dentifrice with green tea extract, sodium monofluorophosphate and calcium carbonate can be effective in reducing gingivitis and dental plaque.
A case of pseudomyogenic hemangioendothelioma of the back misdiagnosed as epithelioid sarcoma
( Ji Youn Hong ),( Ji Su Lee ),( Sung Min Kim ),( Jin Hee Kim ),( Joo Ran Hong ),( Hye In Cheon ),( Min Seok Hur ),( Yang Won Lee ),( Yong Beom Choe ),( Kyu Joong Ahn ) 대한피부과학회 2019 대한피부과학회 학술발표대회집 Vol.71 No.1
A 25-year-old man referred to our dermatologic clinic with one month history of multiple nodular lesions on the back, histopathologically reported epithelioid sarcoma. A punch biopsy was performed again at our clinic, which demonstrated atypical spindle cell proliferative lesion. The tumor cells were immunoreactive for CD31, ERG, Multi-Cytokeratin (CK), INI-1, and vimentin, and were negative for S-100, SMA, EMA, and CD68. Ki-67 index was about 10% of tumor cells. Based on these results, this case is finally diagnosed as pseudomyogenic hemangioendothelioma (PHE). The patient was referred to plastic surgery department and treated with wide local excision. PHE is a rare soft tissue tumor, frequently presenting as multiple nodular lesions in the lower extremities. PHE is also known as epithelioid sarcoma-like hemangioendothelioma, which means that PHE can histopathologically mimic epithelioid sarcoma. In comparison with epithelioid sarcoma, PHE is a relatively indolent and rarely metastasizing tumor. Therefore, a definite diagnosis is important because treatment and prognosis are remarkably different. Immunochemistry is important for differential diagnosis. We herein report the case of PHE diagnosed by immunochemistry, which was misdiagnosed as an epithelioid sarcoma.
Flavonoid silibinin induces hair growth in 3-dimensional cultured human dermal papilla cells
( Ji Youn Hong ),( Ji Su Lee ),( Sung Min Kim ),( Jin Hee Kim ),( Joo Ran Hong ),( Hye In Cheon ),( Min Seok Hur ),( Yang Won Lee ),( Yong Beom Choe ),( Kyu Joong Ahn ) 대한피부과학회 2019 대한피부과학회 학술발표대회집 Vol.71 No.2
Background: Alopecia is a hair loss disorder, which can have a significant psychological impact on the quality of life. Silibinin is a secondary metabolite from Silybum marianum, which is a major active component of silymarin. Previous studies have revealed that silibinin acts as an antioxidant, which can reduce the risk of cutaneous cancers. Objectives: This study aimed to evaluate the effect of silibinin on hair growth in 3-dimensional (3D) cultured human dermal papilla (DP) spheroids. Methods: Activation of serine/threonine kinase (Akt) and the wingless and INT-1 (Wnt)/β-catenin signaling pathway were measured by using the western blotting and the T cell-specific transcription factor and lymphoid enhancer-binding factor (TCF/LEF) promoter-carrying luciferase reporter assay. Expression levels of genes were determined by using quantitative real time PCR analysis. Results: Silibinin significantly increased cell viability through Akt activation in 3D-cultured DP cells. After the treatment with silibinin, the Wnt/β-catenin signaling pathway was highly activated, and the expression levels of the target genes, WNT5a and LEF1, were increased in 3D DP spheroids. Moreover, the expression levels of the signature genes of DP, such as ALPL, VCAN, FGF7 and BMP2, were significantly increased. Conclusion: Silibinin induces hair growth in 3D-cultured DP spheroids through the Akt and Wnt/β-catenin signaling pathways. This study suggests that silibinin can be a potential therapeutic option for alopecia.
A case of calcinosis cutis of the fingertip
( Ji Youn Hong ),( Ji Su Lee ),( Sung Min Kim ),( Jin Hee Kim ),( Joo Ran Hong ),( Hye In Cheon ),( Min Seok Hur ),( Yang Won Lee ),( Yong Beom Choe ),( Kyu Joong Ahn ) 대한피부과학회 2019 대한피부과학회 학술발표대회집 Vol.71 No.1
A 31-year-old male patient presented our clinic with a 3-month history of a yellowish globular-shaped subcutaneous firm nodule on right third fingertip. He complained of perilesional pain but had no systemic symptoms. He denied any history of trauma in the lesion, and medical past history. A biopsy was performed under clinical suspicion of glomus tumor. The lesion was totally excised, and histopathological examination revealed the presence of calcified deposits in the dermis. Moreover, laboratory examination, including renal function tests, serum calcium and phosphorus showed no abnormality. Idiopathic calcinosis cutis is an uncommon disorder, which is cutaneous calcification without underlying tissue injury or metabolic disorder. Tumoral calcinosis is a type of idiopathic calcinosis cutis, which usually occurs around the large joints, but rare in the fingers. Subepidermal calcified nodule is an another type of idiopathic calcinosis cutis. It is characterized by solitary hard papules on the head and extremities, which is frequently occurs in children. The other type of idiopathic calcinosis cutis is scrotal calcinosis. We herein report the case of idiopathic calcinosis cutis presenting with atypical manifestation, which occurs in fingertip of healthy male adult.
A case of giant basal cell carcinoma of the cheek
( Ji Youn Hong ),( Ji Su Lee ),( Sung Min Kim ),( Jin Hee Kim ),( Joo Ran Hong ),( Hye In Cheon ),( Min Seok Hur ),( Yang Won Lee ),( Yong Beom Choe ),( Kyu Joong Ahn ) 대한피부과학회 2019 대한피부과학회 학술발표대회집 Vol.71 No.1
A 59-year-old female patient presented with one year history of an enlarging left cheek mass. The mass was measured about 6 cm by 4 cm in diameter and the lesion accompanied skin color change to red and vascularization. Contrast enhanced neck magnetic resonance imaging (MRI) showed malignant tumor with suspicious involvement of the skin, but no infiltration of bone. A punch biopsy confirmed the diagnosis of basal cell carcinoma (BCC), and total whole body FDG positron-emission tomography (PET) imaging showed no suspicious metastatic hypermetabolic lesions. She referred to department of plastic surgery and was treated with wide surgical excision. BCC is the most common non-melanoma skin cancer, and its incidence is increasing worldwide. BCC generally grows slowly and has favorable prognosis. Giant BCC is a rare type of BCC, with less than 1%, which is defined as a tumor with larger than 5 cm in diameter. Contrary to natural course of general BCC, giant BCC is known to behave aggressive, which can invade and destroy the surrounding structure such as muscle and bone. However, treatment of giant BCC has not yet been established because of rarity of this tumor. Multidisciplinary approach is needed for treatment of giant BCC. We herein report the interesting case of giant BCC of the cheek.