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      • Hypoxia-Responsive MicroRNA-101 Promotes Angiogenesis <i>via</i> Heme Oxygenase-1/Vascular Endothelial Growth Factor Axis by Targeting Cullin 3

        Kim, Ji-Hee,Lee, Kwang-Soon,Lee, Dong-Keon,Kim, Joohwan,Kwak, Su-Nam,Ha, Kwon-Soo,Choe, Jongseon,Won, Moo-Ho,Cho, Byung-Ryul,Jeoung, Dooil,Lee, Hansoo,Kwon, Young-Guen,Kim, Young-Myeong Mary Ann Liebert 2014 Antioxidants & redox signaling Vol.21 No.18

        <P>Aims: Hypoxia induces expression of various genes and microRNAs (miRs) that regulate angiogenesis and vascular function. In this study, we investigated a new functional role of new hypoxia-responsive miR-101 in angiogenesis and its underlying mechanism for regulating heme oxygenase-1 (HO-1) and vascular endothelial growth factor (VEGF) expression. Results: We found that hypoxia induced miR-101, which binds to the 3 ' untranslated region of cullin 3 (Cul3) and stabilizes nuclear factor erythroid-derived 2-related factor 2 (Nrf2) via inhibition of the proteasomal degradation pathway. miR-101 overexpression promoted Nrf2 nuclear accumulation, which was accompanied with increases in HO-1 induction, VEGF expression, and endothelial nitric oxide synthase (eNOS)-derived nitric oxide (NO) production. The elevated NO-induced S-nitrosylation of Kelch-like ECH-associated protein 1 and subsequent induction of Nrf2-dependent HO-1 lead to further elevation of VEGF production via a positive feedback loop between the Nrf2/HO-1 and VEGF/eNOS axes. Moreover, miR-101 promoted angiogenic signals and angiogenesis both in vitro and in vivo, and these events were attenuated by inhibiting the biological activity of HO-1, VEGF, or eNOS. Moreover, these effects were also observed in aortic rings from HO-1(+/-) and eNOS(-/-) mice. Local overexpression of miR-101 improved therapeutic angiogenesis and perfusion recovery in the ischemic mouse hindlimb, whereas antagomiR-101 diminished regional blood flow. Innovation: Hypoxia-responsive miR-101 stimulates angiogenesis by activating the HO-1/VEGF/eNOS axis via Cul3 targeting. Thus, miR-101 is a novel angiomir. Conclusion: Our results provide new mechanistic insights into a functional role of miR-101 as a potential therapeutic target in angiogenesis and vascular remodeling. Antioxid. Redox Signal. 21, 2469-2482.</P>

      • 민주지산의 수서곤충 군집에 관한 연구

        남상호,조영호,박영준,이선영 대전대학교 기초과학연구소 2003 自然科學 Vol.14 No.1

        충청북도, 경상북도와 전라북도의 3개 도가 경계를 이루고 있는 민주지산에서 발원한 물한계곡의 수서곤충 군집구조를 조사한 결과 총 5목 17과 29종이 조사되었다. 분류구별 출현양상은 하루살이류가 5과 17종으로 가장 많이 조사되었으며, 현존량 역시 하류살이류가 292개체(48.42%)로 가장 높게 나타났다. 전체 우점종은 두갈래하루살이와 깔따구류로 0.38의 우점도지수를 기록하였다. 종다양도는 제 2지점인 삼도봉 약수터부근에서 2.59로 가장 높게 나타났고, 제 5지점인 황룡사 부근에서 2.00으로 가장 낮게 조사되었다. 전 조사지점별 오수생물계열은 β-중부수성으로 비교적 양호하게 조사되었다. Aquatic insect communities were investigated in a mountain streams of Mt. Minjujisan from May 31 to June 1, 2002. As a result, 29 species of aquatic insects in 17 families and in 5 orders appeared during the study period, the order Ephemeroptera and Plecoptera of which were the most appeared. Ephemeroptera was consisted of 17 species of 5 families and 292 individuals(48.42%) of total individual number. Dominant species was Paraleptophlebia chocorata and the subdominant species was Chironmidae sp.. Dominant species index of Paraleptophlebia chocorata and Chironmidae sp. was 0.38. The highest species diversity index was observed of site 2 as 2.59 and the lowest species diversity index was observed of site 5 as 2.00. Dominance indices ranged between 0.30 and 0.57 while diversity indices between 2.00 and 2.59. In relation to species diversity indicesm, Mt. Minjisan streams were determined as β-saproblty area. In general, all sites of survey area were clean.

      • 忠南 錦山郡 西臺山 一帶의 나비目 昆蟲相

        남상호,조영호,장석원,박영준,이선영,나선희 대전대학교 기초과학연구소 2002 自然科學 Vol.13 No.2

        충청남도 금산군 서대산 일대의 나비목 곤충상을 조사한 결과 22과 344종 1,936개체가 조사되었다. 이중 밤나방과가 102종 589개체, 자나방과가 67종 440개체로 이 2과가 전체의 50%이상을 차지하였다. 자나방과의 두줄가지나방은 1,936 개체중 85개체가 채집되어 4.4%의 가장 높은 우점도를 나타냈다. 월별 우점종은 4월 노랑무늬물결자나방, 5월 별박이세줄나비, 6월 목도리불나방, 7월 청백무늬밤나방, 8월 두줄가지나방, 9월은 털뿔가지나방이 조사되었다. 월별 종다양도는 4월 2.95, 5월 3.37, 6월 4.63, 7월 4.62, 8월 4.23, 9월은 2.97이었으며, 평균 종다양도는 3.80으로 서대산 일대의 나비목 곤충상은 비교적 양호한 편으로 조사되었다. This study was carried out to investigate Lepidopterous insect fauna from Mt. Seodae in Geumsan-gun, Chungnam. The samples were collected from April to September in 2001. Total 1,936 individuals belonging to 344 species, 22 families of Lepidoptera were collected. The sum of individuals belonging to Noctuidae and Geometridae exceed 50% of the collected samples in that Noctuidae was consisted of 102 species 589 individuals and Geometridae was 67 species 440 individuals. The dominant species in surveyed area was Rikiosatoa grisea of Geometridae, the dominant species by month were Idiotephria amelia in April, Neptis pryeri in May, Paraona staudinger in June, Ercheia niveostrigata in July, Rikiosatoa grisea in August and Alcis angulifera in September respectively. Species diversity indices by month were 2.93 in April, 3.37 in May, 4.63 in June, 4.62 in July, 4.23 in August and 2.97 in September respectively. Mean species diversity index was 3.80.

      • KCI등재후보

        영골(靈骨).강압혈(降壓穴) 자극(刺鍼)이 혈압(血壓)에 미치는 영향(影向)

        임영남,심성용,한지완,고호연,박종형,한양희,전찬용,김동우,Yim, Young-Nam,Sim, Sung-Yong,Han, Ji-Wan,Ko, Ho-Yeon,Park, Chong-Hyeong,Han, Yang-Hee,Chun, Chan-Yong,Kim, Dong-Woo 대한한방내과학회 2004 大韓韓方內科學會誌 Vol.25 No.2

        Objective : The purpose of this study is to evaluate the clinical effect of the non-pharmacological anti-hypertension method, acupuncture, for hypertensive patients. Methods : 26 patients diagnosed with hypertension were each treated by one of three methods: an anti-hypertension drug(adalat soft capsule), venepuncture, and acupuncture. In cases of rising blood pressure, patients were treated by their one of the three methods, and blood pressure was measured at regular intervals. Result : As for the group of acupuncture treated patients on Young-gol(ling-gu) and Gang-ap-hyul(jiang-ya-xue), readings dropped 18.0mmHg in systolic blood pressure and 6.50mmHg in diastolic blood pressure. This was a greater effect than that seen in the venepuncture treated patients. Blood pressure checked one hour after acupuncture treatment showed a greater difference than blood pressure checked after thirty minutes. Conclusion : Safe reductions in blood pressure were observed through the non-pharmacological method of acupuncture on Young-gol(ling-gu) and Gang-ap-hyul(Jiang-ya-xue).

      • 남성화를 보이는 여성에서 발견된 난소의 Steroid Cell Tumor 1예

        조인호,정대훈,박영미,서영진,손영실,정철회,강영미,정수전,김영남,이경복,성문수,김기태 인제대학교 2006 仁濟醫學 Vol.27 No.-

        Steroid cell tumor is a rare ovarian sex cord-stromal tumor which accounts for 0.1% of all ovarian tumors. Until now, only 4 cases have been reported in domestic literatures. Steroid cell tumor often secrets testosterone and presents virilization in adult women or precocious puberty in children. Treatment is often performed by surgical removal, adjuvant chemotherapy and radiation, but completely accepted treatment was not existed. We experienced a case of steroid cell tumor, which was manifested by typical virilization in a 43-year old patient, who was previously performed hysterectomy and unilateral oophorectomy. So, we present with a brief review of the literatures.

      • KCI등재후보

        Continuous Wave of Condensation Technique으로 근관충전시 치근면 온도상승 분석

        김영주,황윤찬,김선호,황인남,최보영,정영진,정우남,오원만 大韓齒科保存學會 2003 Restorative Dentistry & Endodontics Vol.28 No.4

        This study was conducted to evaluate the temperature rise on the root surface while the root canal is being obturated using continuous wave of condensation technique. Maxillary central incisor was prepared for repeated canal obturation. Ten thermocouples (Omega Engineering Inc., Stanford, USA) were placed at 1mm increment from the anatomical root apex. The real temperature of Buchanan plugger was recorded before insertion into the root canal. The root canal was obturated with continuous wave of condensation technique as described by Buchanan and the root surface temperature was recorded during obturation at 150℃, 200℃, 250℃ and 300℃ temperature settings of System B HeatSource (Model 1005, Analytic technologies, Redmond, WA, USA). After completion of the temperature recording, the dentinal-cementum thickness at each sites was measured. The data were analyzed using one-way ANOVA followed by Scheffe's test and linear regression test. The results were as follows. 1. When the temperature was set at 150℃, 200℃, 250℃ and 300℃ on the digital display of System B HeatSource, the real temperature of the plugger at the 1mm point from the tip revealed 130.82±2.96℃ 158.00±5.26℃, 215.93±6.91℃ and 249.88±3.65℃ respectively. 2. The position of 8 mm from the anatomical apex showed the highest temperature increase at each temperature settings and it was significantly higher than those of other positions (p<0.01). The temperature rise was constantly increased toward coronal portion from apex of the root. 3. The maximum temperature increase on the root surface was 2.37±0.09℃ at 150℃ setting, 3.11±0.12℃ at 200℃ setting, 3.93±0.09℃ at 250℃ setting and 5.69±0.15℃ at 300℃ setting respectively. These results suggest that it be relatively kind to the supporting tissues of the root that the root canal is obturated using continuous wave of condensation technique at 150℃, 200℃, 250℃ and 300℃ temperature settings on digital temperature display of System B HeatSource.

      • Continuous Wave of Condensation Technique으로 근관충전시 치근면 온도상승 분석

        김영주,황윤찬,김선호,황인남,최보영,정영진,정우남,오원만 전남대학교 치의학연구소 2003 구강과학 Vol.15 No.4

        This study was conducted to evaluate safety to the supporting tissues of the root while the root canal is obturated using continuous wave of condensation technique. A extracted maxillary central incisor was prepared for repeated canal obturation. After conventional access opening, working length was then established to the point 1㎜ from anatomical root apex. The root canal was prepared with GT rotary Ni-Ti file (Dentsply Maillefer, Switzerland). Five thermocouples (Onega Engineering Inc., USA) were placed at 2㎜ increments on one side beginning 1㎜ from the anatomical root apex and the other five thermocouples at 2㎜ increments on the other side beginning 2㎜ from it. For obturation, a nonstandardized medium size gutta-percha cone and a ML Buchanan plugger (Analytic technologies, USA) were selected. After drying of root canal, AH 26 root canal sealer (Dentsply Detrey, Germany) was applied on the wall of the root canal. Baseline temperature was measured on the root surface. The ML size plugger was preheated for 2seconds and then the real temperature of it was recorded before insertion into the root canal. The root canal was obturated with continuous wave of condensation technique as described by Buchanan. The root surface temperature was recorded during obturation and it was performed ten times at each of the following temperature settings: 150℃, 200℃, 250℃ and 300℃. After completion of the temperature recording, the dentinal-cementum thickness at each sites where thermocouples were attached was measured. The data were analyzed using one-way ANOVA followed by Scheffe's test and linear regression test. The results were as follows. 1. When the temperature was set at 150℃, 200℃, 250℃ and 300℃ on the digital display of System B HeatSource, the real temperature of the plugger at the 1㎜ point from the tip revealed 130.82±2.96℃, 158.00±5.26℃, 215.92±6.91℃ and 249.88±3.65℃ respectively. 2. The position of 8 ㎜ from the anatomical apex showed the highest temperature increase at each temperature settings and it was significantly higher than those of other positions (p<0.01). The temperature rise was constantly increased toward coronal portion from apex of the root. 3. The maximum temperature increase on the root surface was 2.37±0.09℃ at 150℃ setting, 3.11±0.12℃ at 200℃ setting, 3.93± 0.09℃ at 250℃ setting and 5.69± 0.15℃ at 300℃ setting. These results suggest that it be relatively kind to the supporting tissues of the root that the root canal is obturated using continuous wave of condensation technique at 150℃, 200℃, 250℃ and 300℃ temperature settings on digital display of System B HeatSource.

      • Hepatoprotective and Antioxidative Activities of <i>Cornus officinalis</i> against Acetaminophen-Induced Hepatotoxicity in Mice

        Lee, Nam-Hun,Seo, Chang-Seob,Lee, Ho-young,Jung, Da-Young,Lee, Jun-Kyung,Lee, Jin-Ah,Song, Kye Yong,Shin, Hyeun-kyoo,Lee, Mee-Young,Seo, Young Bae,Kim, Hokyoung,Ha, Hyekyung Hindawi Publishing Corporation 2012 Evidence-based Complementary and Alternative Medic Vol.2012 No.-

        <P>The fruit of <I>Cornus officinalis </I>Sieb. et Zucc. is commonly prescribed in Asian countries as a tonic formula. In this study, the hepatoprotective effect of ethanolic extracts of the fruit of <I>C. officinalis</I> (ECO) was investigated in a mouse model of acetaminophen- (APAP-) induced liver injury. Pretreatment of mice with ECO (100, 250, and 500 mg/kg for 7 days) significantly prevented the APAP (200 mg/kg) induced hepatic damage as indicated by the serum marker enzymes (AST, ALT, and LDH). Parallel to these changes, ECO treatment also prevented APAP-induced oxidative stress in the mice liver by inhibiting lipid peroxidation (MDA) and restoring the levels of antioxidant enzymes (SOD, CAT, and HO-1) and glutathione. Liver injury and collagen accumulation were assessed using histological studies by hematoxylin and eosin staining. Our results indicate that ECO can prevent hepatic injuries associated with APAP-induced hepatotoxicity by preventing or alleviating oxidative stress.</P>

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