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김미정, 박효진, 이유영, 김선림, 김정태, 우관식, 권영업, 정일민 忠北大學校 農業科學硏究所 2014 農業科學硏究 Vol.30 No.2
This study was conducted to investigate the pasting properties of waxy corn ‘Ilmichal’ during ripening with different sowing date. Starch content of Ilmichal was increased as matured (p<0.05). Analysis of pasting properties with waxy corn starch using a rapid visco analyser (RVA) showed linear changes in peak viscosity, trough viscosity, final viscosity, breakdown and consistency according to ripening. There were significantly positive correlation between starch content of Ilmichal and peak viscosity (0.39*), trough viscosity (0.58***), final viscosity (0.58***), and consistency (0.57**). Differential scanning calorimerty (DSC). The enthalpy of gelatinization was increased as ripening. But onset and peak temperature were decreased. There were significantly positive correlation between starch content of Ilmichal and onset temperature (0.44*), peak temperature (0.38*), and completion temperature (0.59***), on the other hand, crude protein content presented significantly negative correlation between completion temperature (-0.41*).
동종 조혈모세포이식 후 발생한 크립토콕쿠스 척추염 1예
고윤호,임동준,이성수,조유경,이동건,최정현,김유진,민창기,김동욱,박정미,김춘추,신완식 대한감염학회 2001 감염 Vol.33 No.4
Skeletal cryptococcosis is an uncommon infection. Cryptococcus is a common cause of meningitis and infects 7∼10% of patients with AIDS. As well as AIDS, the infection may be seen in association with leukemia, lymphoma, Hodgkin's disease, sarcoidosis, tuberculosis and diabetes, also in patients on steroid medication. But there is no case report of skeletal cryptococcosis following allogeneic hematopoietic stem cell transplantation. A 40-year-old woman was admitted to the hospital because of low back pain. She had chronic myelogenous leukemia for 2 years and underwent allogeneic hematopoietic stem cell transplantation 8 months ago. She have been treated with steroid and cyclosporine orally because of chronic graft versus host disease. On examination she was afebrile and had posterior lower lumbar tenderness. But, she had no reduced strength of low extremities. Open biopsy was underwent. Histology demonstrated budding, round-to-oval, refractile yeast-like organisms within debris. The results of a lumbar puncture were unremarkable and cerebrospinal fluid culture failed to grow bacteria and yeast. The patient was treated with amphotericin B (1 gram) and AmBisome□ (2.8 gram) over 6 weeks. Three months after cessation of therapy, the patient was doing well.(Korean J Infect Dis 33:298∼301, 2001)
교내 수도꼭지형 냉온수기의 생수 배출 부위와 생수에 존재하는 미생물의 분포
박창은,김설아,임미소,이다은,박유진 남서울대학교 2010 남서울대학교 논문집 Vol.16 No.1-1
The distributed species and number of viable microorganisms in drinking water were monitored according to water dispenser maintenance. our purpose was to investigate the distribution of bacteria in drinking water dispenser. To analyze possible dispenser contaminations sampling were performed from 14 locations in Namseoul University for 3 months from March to May, 2010. The isolated bacteria were identified by Gram stain and biochemical test using VITEKⅡ systems. The microorganism concentrations around the water discharge areas were measured and the average of total microorganisms was determined. The number of bacteria were measured by McFarland turbidity. The water and water discharge areas were separated and identified. The isolation rates of Gram positive cocci and Gram negative bacilli were 56.5%, 17.4% respectively. The frequently isolated bacteria were Staphylococcus epidermidis, Enterobacter aerogenes, Enterbacter sakazakii, Alcaligenes faecalis, Acinetobacter baumannii, Staphylococcus hominis, respectively. Further systematic studies are necessary with an emphasis on species identification. Key Words : Microorganisms, Water Discharge Areas, Drinking Water, McFarland
제 1형 신경섬유종증 환자에서 발생한 위장관 간질종양 1예
원경준,이준,변유미,조민근,한경택,김원,홍란,임성철,김경종,김영대,박찬국,김만우 朝鮮大學校 附設 醫學硏究所 2007 The Medical Journal of Chosun University Vol.32 No.2
Gastrointestinal stromal tumor (GIST) is the most common non-epithelial neoplasm arising in the gastrointestinal tract, but this tumor is rarely seen in association with type l neurofibromatosis (NFl) Generally, the majority of GISTs are isolated neoplasm and they are sporadically found in the stomach, but the GISTs in NFl patients are usually multiple and usually found in the small intestine. We report a case of multiple GISTs in the jejunum of a 63-year-old woman diagnosed as NFl accompanied by complication of gastrointestinal bleeding, In this case, Patient had multiple cafe-au lait spots and neurofibroma on skin and had freckling on axilla and groin, and then, we made a diagnosis of NFl. Gastrointestinal bleeding is controlled by resection of multiple GISTs. Generally, only 3-5% of all gastrointestinal bleeding comes from the small bowel. Causes of small intestinal bleeding are angiodysplasia, neoplasm, NSAIDs induced ulcer etc. but, If patients have NFl accompanied by complication of gastrointestinal bleeding, GISTs on small bowel must be considered.
RAD2 and PUF4 Regulate Nucleotide Metabolism Related Genes, HPT1 and URA3
Yu, Sung-Lim,Lim, Hyun-Sook,Kang, Mi-Sun,Kim, Mai Huynh,Kang, Dong-Chul,Lee, Sung-Keun The Korean Society of Toxicogenomics and Toxicopro 2008 Molecular & cellular toxicology Vol.4 No.4
Yeast RAD2, a yeast homolog of human XPG gene, is an essential element of nucleotide excision repair (NER), and its deletion confers UV sensitivity and NER deficiency. 6-Azauracil (6AU) sensitivity of certain rad2 mutants revealed that RAD2 has transcription elongation function. However, the fundamental mechanism by which the rad2 mutations confer 6AU sensitivity was not clearly elucidated yet. Using an insertional mutagenesis, PUF4 gene encoding a yeast pumilio protein was identified as a deletion suppressor of rad2${\Delta}$ 6AU sensitivity. Microarray analysis followed by confirmatory RT-qPCR disclosed that RAD2 and PUF4 regulated expression of HPT1 and URA3. Overexpression of HPT1 and URA3 rescued the 6AU sensitivity of rad2${\Delta}$ and puf4${\Delta}$ mutants. These results indicate that 6AU sensitivity of rad2 mutants is in part ascribed to impaired expression regulation of genes in the nucleotide metabolism. Based on the results, the possible connection between impaired transcription elongation function of RAD2/XPG and Cockayne syndrome via PUF4 is discussed.
(Yu Mi Lim),(Jae Young Sung),(Mann Hyung Lee) 생화학분자생물학회 1998 BMB Reports Vol.31 No.3
Helicobacter pylori is the etiologic agent of human gastritis and peptic ulceration and produces urease as the major protein component on its surface. H. pylori urease is known to serve as a major virulence factor and in a potent immunogen. In order to express the recombinant urease at a higher level, a DNA fragment containing the minimal H. pylori urease gene cluster was subcloned into a high copy-number vector. The recombinant H. pylori urease expressed in an E. coli strain that was grown in a rich medium supplemented with added nickel was purified to near homogeneity by using DEAE-Sepharose, Superdex HR200, and Mono-Q (FPLC) columns and the purified enzyme possessed the specific activity of 1255 U/㎎. Polyclonal antibodies raised against the purified recombinant H. pylori urease were shown to be very specific when subjected to Western blot analysis, in which crude extracts from the H. pylori ATCC strain and the recombinant E. coli strains expressing various bacterial ureases were examined for cross-reactivity.
Lim, Seong Mi,Yoon, Mi-Young,Choi, Gyung Ja,Choi, Yong Ho,Jang, Kyoung Soo,Shin, Teak Soo,Park, Hae Woong,Yu, Nan Hee,Kim, Young Ho,Kim, Jin-Cheol The Korean Society of Plant Pathology 2017 Plant Pathology Journal Vol.33 No.5
The aim of this study was to identify volatile and agardiffusible antifungal metabolites produced by Bacillus sp. G341 with strong antifungal activity against various phytopathogenic fungi. Strain G341 isolated from four-year-old roots of Korean ginseng with rot symptoms was identified as Bacillus velezensis based on 16S rDNA and gyrA sequences. Strain G341 inhibited mycelial growth of all phytopathogenic fungi tested. In vivo experiment results revealed that n-butanol extract of fermentation broth effectively controlled the development of rice sheath blight, tomato gray mold, tomato late blight, wheat leaf rust, barley powdery mildew, and red pepper anthracnose. Two antifungal compounds were isolated from strain G341 and identified as bacillomycin L and fengycin A by MS/MS analysis. Moreover, volatile compounds emitted from strain G341 were found to be able to inhibit mycelial growth of various phytopathogenic fungi. Based on volatile compound profiles of strain G341 obtained through headspace collection and analysis on GC-MS, dimethylsulfoxide, 1-butanol, and 3-hydroxy-2-butanone (acetoin) were identified. Taken together, these results suggest that B. valezensis G341 can be used as a biocontrol agent for various plant diseases caused by phytopathogenic fungi.
Lim, Yu-Mi,Sung, Jae-Young,Lee, Mann-Hyung Korean Society for Biochemistry and Molecular Biol 1998 Journal of biochemistry and molecular biology Vol.31 No.3
Helicobacter pylori is the etiologic agent of human gastritis and peptic ulceration and produces urease as the major protein component on its surface. H. pylori urease is known to serve as a major virulence factor and in a potent immunogen. In order to express the recombinant urease at a higher level, a DNA fragment containing the minimal H. pylori urease gene cluster was subcloned into a high copy-number vector. The recombinant H. pylori urease expressed in an E. coli strain that was grown in a rich medium supplemented with added nickel was purified to near homogeneity by using DEAE-Sepharose, Superdex HR200, and Mono-Q (FPLC) columns and the purified enzyme possessed the specific activity of 1255 U/mg. Polyclonal antibodies raised against the purified recombinant H. pylori urease were shown to be very specific when subjected to Western blot analysis, in which crude extracts from the H. pylori ATCC strain and the recombinant E. coli strains expressing various bacterial ureases were exnmined for cross-reactivity.
Prevalence of Oral Microbes in the Saliva of Oncological Patients
Mi-Sun Kang,Jong-Suk Oh,Hyeoung-Joon Kim,Hee-Nam Kim,Il-Kwon Lee,Hong-Ran Choi,Ok-Joon Kim,Young-Jong Ko,Won-Bong Lim,Hong-Ju Park,Min-Gi Yu,Kyung-Yi Chung,Seon-Mi Kim,Hoi-Soon Lim 대한미생물학회 2009 Journal of Bacteriology and Virology Vol.39 No.4