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전소분,박혜연,김선아,정금선,이영원,박성준,김덕환,송근호 충남대학교 수의과대학 동물의과학연구소 2004 動物醫科學硏究誌 Vol.12 No.-
A 10 years old, intact male, Maltese dog with clinical signs of labored respiration, exercise intolerance and increasing of coughing was referred to the Veterinary Medical Teaching Hospital of Chungnam National University. Physical examination revealed tachycardia, panting and mild cyanosis. This case was diagnosed as mitral valve insufficiency by clinical signs, ascultation, blood chemistry, radiography and electrocardiography. This dog was treated with ACE inhibitor (enalapril), diuretics (furosemide) and bronchodilator (aminophylline) for 14 days. After treatment, clnical signs were disappeared and also this dog was needed to be continuous monitoring and sodium restricted diet.
매개 중심성을 이용한 해양 플라스틱 폐기물의 경로 예측 및 효율적인 수거지점 제안
전연선(Yeon Seon Jeon),홍민지(Min Ji Hong),박무규(Moo Kyu Park),최용상(Yong Sang Choi) 大韓環境工學會 2015 대한환경공학회지 Vol.37 No.7
우리나라에서 플라스틱으로 인한 해양오염이 심각함에도 불구하고 경로 예측 및 수거 방안에 대한 연구는 찾아보기어렵다. 본 연구에서는 미국 해양대기청(National Oceanic and Atmospheric Administration, NOAA)의 해양 표층해류 시뮬레이터(Ocean Surface CURrent Simulator, OSCURS)를 이용하여 2004년부터 2013년까지 계절별로 동ㆍ서해로 유입된 플라스틱 폐기물의 이동 경로를 예측하였고, 매개 중심성 분석을 통하여 효율적인 수거지점을 제안하였다. 효율적인 수거지점의 대부분이 계절과 상관없이 연안에 형성되었고, 그중에서도 동해는 울진 연안, 서해는 새만금-신안 연안이 플라스틱 폐기물을 효율적으로 수거할 수 있는 지역이었다. Korea severely suffers from plastic-induced ocean pollution, but only few studies predicted the trajectory of marine plastic debris and provided their collection method. This study used Ocean Surface CURrent Simulator (OSCURS) of National Oceanic and Atmospheric Administration (NOAA) in order to predict the trajectories of marine plastic debris flowing into the East Sea and Yellow Sea for each season during 2004 to 2013. Results suggest that efficient collection hubs through the high betweenness centrality index. Most hubs were located in the seashores regardless of season, suggesting the seashore of Uljin for the East Sea and the seashore between Saemangeum and Shinan for the Yellow Sea as the most efficient hubs.
Jeon Jeong-Ryae,Lee Ji-Seon,Lee Chu-Hee,Kim Jong-Yeon,Kim Soon-Dong,Nam Doo-Hyun The Pharmaceutical Society of Korea 2006 Archives of Pharmacal Research Vol.29 No.5
In this study, a 40% ethanol extract of Chinese yam flour (Dioscoreae rhizoma), containing $177{\pm}58{\mu}g/mL$ of dioscin, was tested in order to evaluate its pharmacological effects on the gastrointestinal tracts of Sprague-Dawley rats. Via the ingestion of the Chinese yam extract, the secretion of gastric acid was suppressed in the rats, and gastrointestinal motility increased by as much as 10%. The fecal quantity of rats fed on the Chinese yam extract also increased, by more than 40% as compared with that of the controls. The Chinese yam extract was found not to affect the growth of normal intestinal bacteria. However, a great deal of lactose-fermenting bacteria was observed in the fecal samples of rats fed for 6 weeks on 2% Chinese yam extract. This finding would appear to suggest that Chinese yam extract not only induces an improvement in digestive capability, but also affects the conversion of some intestinal flora to helpful bacteria. Our serochemical analyses indicated that serum glucose, neutral lipid, and total cholesterol levels were reduced to some degree by long-term feeding on Chinese yam extract. This finding bolsters the notion that Chinese yam extract may prove helpful as a digestion-aiding agent for patients suffering from hyperglycemia or hyperlipidemia.
Jeon, Young-Eun,Lee, Yeon-Sil,Lim, Soon-Sung,Kim, Sun-Ju,Jung, Sang-Hoon,Bae, Young-Soo,Yi, Jae-Seon,Kang, Il-Jun The Korean Society for Applied Biological Chemistr 2009 Applied Biological Chemistry (Appl Biol Chem) Vol.52 No.5
Phellinus linteus has traditionally been used as a medicinal mushroom in Oriental countries. Bioactive phytochemicals from the fruiting body of P. linteus were investigated using the on-line HPLC-DPPH system. The system was used to separate 10 antioxidants: protocatechuic acid (1) protocatechualdehyde, (2) caffeic acid (3), ellagic acid (4), hispidin (5), davalliallactone (6), interfungins A (7), hypholomine B (8), inoscavin A (9), and methyldavallialactone (10). Of these, compounds 6 and 7 showed the strongest inhibitory effect against the DPPH radical and superoxide anion radical-scavenging capacity. On comparison with quercetin ($IC_{50}$, 44.0 ${\mu}M$), the $IC_{50}$ value of compounds 6 and 7 for DPPH radical-scavenging capacity were 19.6 ${\mu}M$ and 18.5 ${\mu}M$. Moreover, the antioxidative capacity of compound 6 at 40mM was 2.95 nmol Trolox equivalents per mg dry wt. These results indicated that hispidin dimers such as hispidin with hispidin or hispolon had a stronger effect on radical-scavenging capacity than hispidin itself.
Jeon, Ju‐,Hyun,Yang, Ji‐,Yeon,Lee, Hoi‐,Seon John Wiley Sons, Ltd 2014 Pest Management Science Vol.70 No.7
<P><B>Abstract</B></P><P><B>BACKGROUND</B></P><P><B>The acaricidal activities of (±)‐camphor structural analogues against house dust mites were evaluated using the impregnated fabric disc bioassay.</B></P><P><B>RESULTS</B></P><P><B>The acaricidal effects of camphor and its structural analogues were evaluated against <I>Dermatophagoides farinae</I> and <I>D. pteronyssinus</I>. Based on the LD<SUB>50</SUB> values against <I>D. farinae</I>, (±)‐camphor (0.95 µg cm<SUP>−2</SUP>) was 38.75 times more effective than <I>N</I>,<I>N</I>‐diethyl‐<I>m</I>‐toluamide (DEET) (36.81 µg cm<SUP>−2</SUP>), followed by (+)‐camphor (1.41 µg cm<SUP>−2</SUP>), (−)‐camphor (2.03 µg cm<SUP>−2</SUP>) and (1R)‐camphor oxime (3.31 µg cm<SUP>−2</SUP>) in the impregnated fabric disc bioassay. However, camphor‐10‐sulfonic acid and camphoric acid had no observable activity against <I>D. farinae</I> or <I>D. pteronyssinus</I>. The acaricidal activities of camphor and its structural analogues against <I>D. pteronyssinus</I> were similar to those against <I>D. farinae</I>.</B></P><P><B>CONCLUSION</B></P><P><B>These results indicate that camphor and its structural analogues are suitable for producing acaricidal agents against house dust mites. © 2014 Society of Chemical Industry</B></P>