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엄수나(Suna Um),진경언(Gyoung-ean Jin),박계원(Kye Won Park),유영복(Young-bok Yu),박기문(Ki-Moon Park) 한국식품과학회 2010 한국식품과학회지 Vol.42 No.1
일반 느타리 13품종과 색상 느타리 5품종을 사용하여 아미노산 및 polyphenol, β-glucan 함량을 분석하고, 생리활성으로 항산화 및 항암, 항고혈압, 항혈전, 항당뇨, 항염활성을 측정하였다. 느타리버섯 18종의 아미노산 분석결과 전반적으로 감칠맛을 내는 glutamic acid 함량이 비교적 많이 함유되어 있었고, 필수아미노산 성분도 고르게 분포되어 있었다. Polyphenol 함량에서는 전 품종에서 20 mg% 함량이상을 나타냈으며, 노랑느타리(R)가 39.13±0.82 mg%로 가장 높았다. β-glucan 함량은 노랑느타리(R)에서 37.67±0.22%로 가장 높았으며, 그 외에 원형1(C), 장안PK(A)에서 각각 28.75±0.61%, 27.95±0.33%의 순으로 나타났다. 전자공여능에서는 노랑느타리(R) 버섯의 DPPH IC50값이 2.93±0.44 mg/mL로 가장 낮아 항산화 활성이 가장 우수한 것으로 나타났으며, 세포독성 실험에서는 노랑느타리(R) 에탄올 추출물 1% 처리시 신장 암세포에 대해 36.90%의 세포 억제율을 보였다. ACE 저해활성의 경우 노랑느타리(R) 에탄올 추출물 1%농도에서 60.5±0.2%의 저해율이 측정되었고, 흑평(B) 56.7±1.1%, 여름(H) 52.4±1.3% 수준으로 나타났다. 항혈전 활성에서는 3%농도에서 흑평(B)과 삼복(G)을 제외한 나머지 느타리버섯 에탄올 추출물에서 50%이상의 용해 활성을 보였으며 노랑느타리(R)에서 거의 plasmin과 동등한 활성을 나타냈다. 항당뇨 활성에서는 노랑느타리(R)의 경우 50.5±0.8%의 비교적 높은 효소저해율이 측정되었고, 항염활성에서는 노랑느타리(R)에서 68.4±0.3%의 억제율이 측정되었다. 이상의 결과로 일반 느타리 13 품종과 육종 재배된 색상 느타리 5품종 중 노랑느타리(R)가 가장 우수한 생리활성을 나타내 향후 기능성 소재로의 활용가능성이 기대되었다. In this study, the anti-oxidant, anti-tumorigenic, anti-hypertensive, anti-thrombic, anti-diabetic, and antiinflammatory properties of 18 different species of genus Pleurotus were investigated. In addition, the amino acid, β-glucan, and polyphenol content were also measured. All species contained more than 20 mg% of polyphenol with the highest contents found in Pleurotus cornucopiae var. citrinopileatus (yellow pleurotus) (39.13±0.82 mg%). The β-glucan contents was also the highest in yellow Pleurotus (37.67±0.22%) followed by Won-Hyeong1 (C, 28.75±0.61%) and Jang-an PK (A, 27.95±0.33%). The yellow Pleurotus exhibited the highest antioxidant activity as assessed by the DPPH scavenging rate with an IC50 value of 2.94±0.44 mg/mL. Ethanol extracts from the yellow Pleurotus treated at 1% concentration showed cytotoxic activity up to 36.9% in the human embryonic kidney 293T cell lines. The yellow Pleurotus also showed the highest inhibitory effects on ACE activity (60.52±0.2%). Finally, the yellow Pleurotus exhibited anti-diabetic and antiinflammatory properties as shown by inhibition of α-amyloglucosidase activity (50.5±0.8%) and nitric oxide production (68.4±0.3%). Taken together, our data indicate the yellow pleurotus is a promising functional food ingredients.
Cutaneous malignant mesothelioma
( Jin Young Choi ),( Hyun Jee Kim ),( Ji Won Yun ),( Hyung Jin Hahn ),( Young Bok Lee ),( Dong Soo Yu ),( Jin Wou Kim ) 대한피부과학회 2015 대한피부과학회 학술발표대회집 Vol.67 No.1
Malignant mesothelioma is a rare malignant tumor that arises from pleural, pericardial or peritoneal mesenchymal cells. Though extremely rare, cutaneous mesothelioma mayoccur through regional spread, distant metastasis, or direct extension within surgical scars. Clinically, cutaneous lesions present as violaceous papules, nodules, or plaques. Histologically, mesothelioma are divided into epithelial (60%), sarcomatoid (15%), and mixed types (25%). These histological features may simulate metastatic adenocarcinoma, a primary adnexal neoplasm or angiosarcoma. Immunohistochemistry can aid in diagnosis, as the malignancy yields positive staining for calretinin, WT-1, Cytokeratin 5/6, mesothelin, and podoplanin. A 66-year-old man presented with asymptomatic, solitary, palpable, skin-colored, subcutaneous mass on the Rt. flank detected 3 days ago. He had been previously diagnosed with mesothelioma of the Rt. chest wall 3 years prior and undergone mass excision along with adjuvant chemotherapy. A follow up abdomen CT showed a small nodule on the right abdominal wall, which was referred to our department for biopsy. Histopathological findings were remarkable for neoplastic, epithelial cells exhibiting irregular, tubular and papillary growth pattern in the dermis. The cells were positive for calretinin, cytokeratin 5/6, and wt-1 and negative for MOC-31. This to our knowledge is the first report of cutaneous malignant mesothelioma in Korea.
CRISPR/Cas9-mediated knockout of NKX3.1 leads to adenoma and hyperplasia in prostate of C57BL/6 mice
Jin Ju Park,Ji Won Park,Ji Eun Kim,Mi Rim Lee,Jun Young Choi,Bo Ram Song,Hye Ryeong Kim,Byeong Cheol Kang,Dae Youn Hwang,Mi Ju Kang,Su Ji Bae,Hyeon Jun Choi,Yu Sang Choi,Young Ju Lee,Jun Go 한국실험동물학회 2019 한국실험동물학회 학술발표대회 논문집 Vol.2019 No.1
A case of malignant melanoma associated with the history of trauma
( Yu Jin Jeon ),( Hyun Yi Lee ),( Dae Young Oh ),( Young Min Cho ),( Kyung Eun Jung ),( Dae Won Koo ),( Joong Sun Lee ) 대한피부과학회 2018 대한피부과학회 학술발표대회집 Vol.70 No.1
Risk factors of cutaneous melanoma include history of sunburns and/or heavy sun exposure, blue or green eyes, blonde or red hair, fair complexion, over 100 typical nevi, any atypical nevi, prior personal or family history of melanoma, or p16 mutation. Here, we present a unique case of malignant melanoma which occurred associated with the history of trauma. A 63-year-old woman presented with a painful brownish oozing plaque involving left sole of 2-month in duration. She had keratotic brownish plaque on left sole for 5 years ago, and she treated with cryotherapy as a viral wart for 6 months. She has not been to the hospital for two months in recent, and the lesion suddenly got worse. She had a history of hypertension, diabetes, dyslipidemia, and no familial history of melanoma. Histopathologic examination of the lesion on the sole revealed asymmetrical and poorly circumscribed lesions with nests of melanocytes that had marked cytological atypia, which was supportive for malignant melanoma. She was transferred to other hospital for further evaluation. The association between trauma and melanoma has been a controversial issue. In this case, the patient had viral wart at first and got cryotherapy repeatedly. We think that such stimuli may have acted as a kind of trauma. We report this case of malignant melanoma associated with the history of trauma because it is interesting and meaningful for educational purposes.
Effects of Lumbar Position Sense on Swing Chair in Healthy Adults
( Yu-min Ko ),( Seol Park ),( Yun-jin Kim ),( Su-bin Yun ),( Gwon-uk Jang ),( Ji-won Park ) 대한물리치료학회 2012 대한물리치료학회지 Vol.24 No.3
Purpose: To recognize the change in the proprioception under conditions that activate the local muscles, this study found the difference in the proprioception on a fixed and swing chair. Methods: Healthy adults (7 males, 13 females) in their twenties were evaluated lumbar position sense on fixed and swing chair. And the difference of the position sense between the fixed and swing chair were analyzed. Results: The joint position senses were compared between the fixed and swing chair. As a result, there was a significant difference from all motions. Conclusion: This study found that the improvement of proprioception using swing chair means that the local muscle is activated. Therefore, to use a swing chair, which was designed in this study, is able to replace the general chair either at work or during studies. Thus, this method is easily accessible for busy modern people who are exposed to low back pain or spinal disorders due to a pattern of inactivity.
The clinical utilization of radiation therapy in Korea between 2009 and 2013
Jin-Kyu Kang,Mi-Sook Kim,Won-Il Jang,Young Seok Seo,Hee Jin Kim,Chul Koo Cho,Hyung Jun Yoo,Eun Kyung Paik,Yu Jin Cha,Hyun Jin Song 대한방사선종양학회 2016 Radiation Oncology Journal Vol.34 No.2
Purpose: The purpose of this study was to estimate the clinical utilization of radiation therapy (RT) in Korea between 2009 and 2013. Materials and Methods: We analyzed open claims data from the Health Insurance Review and Assessment Service. The subjects were patients who had diagnostic codes C00-C97 or D00-D48 according to the 10th revision of the International Classification of Diseases, with procedure codes indicating RT treatment. Results: The total number of patients who received RT in 2009, 2010, 2011, 2012, and 2013 were 45,571, 49,593, 54,671, 59,172, and 61,485, respectively. Among them, the total numbers of male and female patients were 20,780/24,791 in 2009, 22,711/26,882 in 2010, 24,872/29,799 in 2011, 27,101/32,071 in 2012, and 27,941/33,544 in 2013. The five cancers that were most frequently treated with RT between 2009 and 2012 were breast, lung, colorectal, liver, and uterine cervical cancers. However, the fifth most common cancer treated with RT that replaced uterine cervical cancer in 2013 was prostate cancer. The three leading types of cancer among the male patients were lung, colorectal, and liver cancers, whereas in female patients, they were breast, uterine cervical, and lung cancers. The type of cancer most commonly treated by RT was cancer of the central nervous system in patients aged 20 years or less, breast cancer in patients aged 30–50 years, and lung cancer in patients aged 60 years or more. Conclusion: Data from this study provided the clinical utilization of RT in Korea between 2009 and 2013.
Yu-Ri Kim,Wongwarut Boonyanugomol,Won-jun An,TRINH MINH PHUONG,Jin-Sik Park,신민경,Seung-Chul Baik,이우곤,조명제,Hyung-Lyun Kang,정명환 대한미생물학회 2022 Journal of Bacteriology and Virology Vol.52 No.4
Helicobacter pylori (H. pylori) was defined as a Class 1 pathogenic carcinogen by WHO causing chronic inflammation in the stomach, thereby increasing the risk of gastric cancer. Various virulence factors are involved in the mechanism of gastric cancer caused by H. pylori infection. These virulence factors usually show different expression levels depending on the environment of H. pylori, which can affect the risk of gastric cancer. In this study, the differences in the expression levels of major virulence factors of H. pylori depending on the environment were investigated by comparing expression levels of H. pylori cultured with AGS or alone. As a result, there was no difference in the expression of adhesins of alpA, sabA, and babA even after co-culture with AGS cells. In addition, the co-culture environment did not induce a difference in the expression levels of flaA and ureB. On the other hand, H. pylori co-cultured with AGS cells showed low expression levels of cagA, groEL, and oipA and high expression of vacA compared to H. pylori cultured alone. Our results suggest that not only the presence or absence of virulence factor genes but also differences in expression levels should be considered when evaluating the risk of gastric cancer after H. pylori infection based on the virulence factors.
Jin, Cho-Yi,Han, Song-Yi,Kwon, Kisang,Yun, Eun Young,Kang, Seok Woo,Goo, Tae Won,Kim, Seung-Whan,Yu, Kweon,Kwon, O-Yu Walter de Gruyter GmbH 2010 Zeitschrift fur Naturforschung. Section C Vol.65 No.1
<P>Using silkworm Bombyx mori Bm5 cells, we established a stable cell line expressing the human granulocyte macrophage colony-stimulating factor (hGM-CSF), which gets its name from the Bm5-hGM-CSF cell in which the glycoprotein of the hGM-CSF is secreted in the cell culture supernatant (CCS). It was demonstrated that secreted hGM-CSF had in vivo biological activity and the white blood cell (WBC) value increased two times that of the control. We expect to produce useful human recombinant glycoproteins from silkworm cultured cells for a low price and a large quantity</P>