http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
엄석현,박형재,김성무,박승문,김명조,유창연,조동하 韓國藥用作物學會 2007 한국약용작물학회지 Vol.15 No.4
가래나무 잎을 원적외선 30, 40 및 50 v에서 각각 10, 20 및 30분을 처리하였다. 원적외선을 조사한 잎의 총 폴리페놀 함량, 총 플라보노이드 함량, 잎 추출물의 DPPH radical 소거 활성 등을 분석한 결과, 원적외선 30 v에서 20분간 조사한 처리구에서 총 폴리페놀 함량은 25.43 mg/g로 , 총 플라보노이드 함량은 39.38 mg/g으로 가장 높게 나타났다. 그 반면에, 원적외선 50 v에서 30분간 조사한 처리구에서 총폴리페놀 함량은 16.93 mg/g으로, 총플라보노이드 함량은 23.78 mg/g으로 가장 낮게 나타났다. 전체적으로 원적외선 처리에 의해 잎에 함유한 항산화 물질의 함량의 증가는 물론, 그 추출물의 항산화 활성도 증가하는 것을 알 수 있었다. 하지만 원적외선 처리가 가래나무에 함유한 어떠한 특정적인 물질들의 증가에 관하여서는 추후에 더욱 많은 연구가 필요할 것으로 사료된다. This research was conducted to investigate antioxidant activities of Juglans mandshrica forages by the irradiation of far infrared ray during leaf drying processes before compound extraction, with its potential use for activating antioxidants. The contents of total phenolics and flavonoids in the basis of a gram leaf dry weight were maximized in 20 min at 30 V of far infrared irradiation. Total phenolic content was 25.43 mg/g in the FIR treatment, while it was 21.12 mg/g in the non-FIR treatment control. Total flavonoid content was 39.38 mg/g in the FIR treatment, while it was 32.78 mg/g in the non-FIR treatment control. The contents were decreased when the condition of far infrared ray irradiation was higher voltage and longer treatment time, exhibiting 16.93 mg/g of total phenolics and 23.78 mg/g of total flavonoids in 30 min at 50 V of far infrared irradiation. The antioxidant activities were shown to positive relationships with the contents of total phenolics and total flavonoids. In this study, we concluded that content of bioactive molecules relating antioxidant activity in Juglans mandshrica forages is optimized in 20 min at 30 V of far infrared irradiation for leaf drying process.
엄석현 ( Seok Hyeon Eom ),박창환 ( Chang Hwan Park ),정덕원 ( Duk Won Chung ),이상혁 ( Sang Hyeok Lee ),서지영 ( Ji Young Seo ),김영성 ( Yeong Sung Kim ),곽동협 ( Dong Hyup Kwak ),김정희 ( Jung Hee Kim ) 영남대학교 의과대학 2016 Yeungnam University Journal of Medicine Vol.33 No.2
Heterotopic bone formation in the gastrointestinal tract is a rare phenomenon. Most reported cases were associated with benign and malignant neoplasms, except for a case in which heterotopic bone formation was found in a patient with Barrett`s esophagus. The exact pathogenesis of the disease has not yet been established. However, most heterotopic bones found in the gastrointestinal tract were associated with mucinproducing tumors of the appendix, colon, and rectum. Inflammation may also play a role in osseous metaplasia in a case with bone formation at the base of an ulcer in Barrett`s esophagus. Here, we report on a patient with heterotopic bone formation in normal gastric cardiac mucosa. A 50-year-old female visited our hospital for a routine health examination. She had no gastrointestinal symptoms, and her physical examination, blood test, X-ray, urine, and stool examination results were normal. A 0.3 cm sized polypoid lesion located just below the squamocolumnar junction was observed on upper gastrointestinal endoscopy. A piece of biopsy was taken. Histologically, a lamella bone trabecula and chronic inflammatory cells were observed in the gastric cardiac mucosa. The follow-up endoscopy performed one month later showed no residual lesion.
Antioxdant Activity of Hibiscus cannabinus L. Leaves in Different Growth Time
김성무,엄석현,박형재,유창연,조동하,Jin, Cheng-Wu,Eom, Seok-Hyun,Park, Hyoung-Jae,Ghimeray, Amal Kumar,Yu, Chang-Yeon,Cho, Dong-Ha The Korean Society of Medicinal Crop Science 2009 韓國藥用作物學會誌 Vol.17 No.1
The results on the useful functional compounds of kenaf (Hibiscus cannabinus L.) leaves cultivated in reclaimed lands and the biological activity effects of extracts were as follows. On 98 days after sowing (DAS) Tainung-2 showed the highest total chlorophyll content (1.68 mg/g), and on 141 DAS Dowling showed higher chlorophyll content (1.50 mg/g) than the other two did. In all cultivars the total chlorophyll content was higher on 141 DAS than on 98 DAS. Total polyphenol and total flavonoid contents were the highest in Tainung-2 (30.50 mg/g and 57.03 mg/g, respectively), and total polyphenol and total flavonoid contents (30.50 mg/g and 57.03 mg/g, respectively) were the highest in 30% ethanol extraction. Ascorbic acid contents were higher on 141 DAS than on 98 DAS in three cultivars. SOD activities of kenaf leaf extract were generally over 90%. DPPH radical scavenging activity of Tainung-2 was higher than others.
S-142 : 원위부 총담관 결석으로 오인된 결석을 동반한 총담관류 치료 예
박종완,엄석현,곽태영,김호태,정덕원,황홍석,서지영,김영성,곽동협 대한내과학회 2013 대한내과학회 추계학술대회 Vol.2013 No.1
총담관류는 원위부 총담관의 십이지장벽 부위가 낭상 돌출을 보이는 담관낭종의 한종류로 발생 빈도가 가장 낮다. 총담관류는 간헐적인 담도성 동통, 담도염, 폐쇄성 황달 및 췌장염 등을 일으켜 원위부 총담관결석에 의한 증상과 유사하나 ERCP, MDCT, EUS 등의 검사로 원위부총담관의 십이지장 부위의 낭상 확장을 확인하면 진단할 수 있다. 악성변화가 드물어 무증상의 경우에는 경과 관찰하지만 증상이 있거나 결석을 동반한 경우에는 내시경유두괄약근절개술(EST)로 결석을 제거한다. 저자들은 급성 복증 환자에서 ERCP검사로 총담관류 및 결석을 확인하고 EST로 치료한 1예를 경험하였기에 보고하는 바이다. 75세 여자 환자가 우측 상복부 통증, 발열로 내원하였다. 이학적 소견에서 공막 황달과 우상복부 압통이 관찰되었다. 말초혈액검사는 백혈구 16,060/mm3, 적혈구침강속도 31.0 mm/hr, 생화학검사는 Totalbilirubin 5.58 mg/dL, AST143IU/L, ALT59IU/L, GGT475IU/L, ALP1055IU/L였다. Axial CT검사에서 원위부 총담관 내 13 mm 크기의 결석과 총담관 및 췌관의 확장소견을 보였다. ERCP 검사에서 십이지장 유두부의 낭상팽대가 관찰되었고 원위부 총담관에 15 mm의 낭상 확장과 내부에 결석으로 추정되는 원형의 음영결손이 관찰되었다. 총담관류 및 동반한 결석으로 진단하고 EST로 1.3 cm 크기의 짙은 갈색의 결석을 제거하였다. 2주 후 시행한 추적 ERCP에서 총담관 확장의 감소 소견과 결석이 제거된 반원형 형태의 총담관류가 관찰되었고 환자는 무증상으로 추적관찰 중이다. 총담관류는 위치의 특성상 발견이 어렵다. 원인미상의 반복적인 우상복부 통증이 있거나 담도염이 의심될 경우에는 상부위장내시경 중 십이지장 유두부의 자세한 관찰과 적극적인 ERCP, MDCT, EUS 검사 등을 시행하는 것이 총담관류 조기 발견에 도움이 되리라 사료된다.
염 및 건조스트레스 하에서 포복형 백리향의 생육과 Abscisic Acid 농도변화
김민제,엄석현 韓國藥用作物學會 2009 한국약용작물학회지 Vol.17 No.5
Experimental purpose was to evaluate growth characteristic and abscisic acid (ABA) responses against salt/drought stresses. In the shoot biomass, creeping thyme was tolerated in mild NaCl stress, ranging 0 to 100 mM, while it was severely reduced in higher salinity. Under constant drought stress, the shoot biomass of creeping thyme showed a worse value compared to that of 100 mM NaCl treatment. Chlorophyll degradation was more severe in immature leaf than mature leaf under salt and drought stresses. In salt stress, immature leaf produced much amounts of ABA compared to mature leaf and also immature leaf showed faster increase of ABA than that of mature leaf. In drought stress, immature leaf responded to stress within 24 hours by the increase of ABA, while mature leaf responded to at 72 hours. Our results recommended that the optimal salinity level of creeping thyme was 50~100 mM NaCl.