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이수연,유정선,이준호,정종국,김승태,Lee, Sue Yeon,Yoo, Jung-Sun,Lee, Joon-Ho,Jung, Jong-Kook,Kim, Seung Tae Korean Society of Applied Entomology 2015 한국응용곤충학회지 Vol.54 No.1
황갈새매거미(Haplodrassus mayumiae Kamura, 2007)와 무당귀털거미(Mangora crescopicta Yin et al., 1990)를 한국에서 처음으로 기재 한다. Haplodrassus mayumiae Kamura, 2007 of Gnaphosidae and Mangora crescopicta Yin et al., 1990 of Araneidae were newly described and illustrated from Korea.
Antiestrogenic Effects of Marijuana Smoke Condensate and Cannabinoid Compounds
이수연,오승민,Sang Ki Lee,Kyu Hyuck Chung 대한약학회 2005 Archives of Pharmacal Research Vol.28 No.12
The antiestrogenic effects of marijuana smoke condensate (MSC) and three major cannabinoids, i.e., ∆9-tetrahydrocannabinol (THC), cannabidiol (CBD), and cannabinol (CBN), were evaluated using in vitro bioassays, viz., the human breast cancer cell proliferation assay, the recombinant human estrogen receptor (ER) competitive binding assay, and the reporter gene assay. The inhibitory effects on estrogen were also examined using the ethoxyresorufin-Odeethylase (EROD) assay, the aromatase assay, and the 17β-estradiol (E2) metabolism assay. The results showed that MSC induced the antiestrogenic effect via the ER-mediated pathway, while THC, CBD, and CBN did not have any antiestrogenic activity. This suggests that the combined effects of the marijuana smoke components are responsible for the antiestrogenicity of marijuana use. In addition, MSC induced the CYP1A activity and the E2 metabolism, but inhibited the aromatase activity, suggesting that the antiestrogenic activity of MSC is also related to the indirect ER-dependent pathway, as a result of the depletion of the in situ E2 level available to bind to the ER. In conclusion, pyrogenic products including polycyclic aromatic hydrocarbons (PAHs) in the non-polar fraction, which is the most biologically active fraction among the seven fractions of MSC, might be responsible for the antiestrogenic effect.
Sphingomonas chungbukensis DJ77의 Glucosyl-Isoprenyl Phosphate-Transferase를 암호화할 것으로 추정되는 spsB 유런자
이수연,최정도,신말식,김영창,Lee Soo-Youn,Choi Jung-Do,Shin Malshick,Kim Young-Chang 한국미생물학회 2005 미생물학회지 Vol.41 No.1
S. chungbukensis DJ77의 genome project수행 결과 다당류 생 합성 에 관련된 유전자들의 염기서열을 찾아내었다. 본 논문에서는 이러한 유전자들 중 sphigan형 다당류 생합성에 관여하는 glucosyl-isoprenyl phosphate-transferase를 암호화 하는 유전자의 완전한 서열을 결정하였고, spsB로 명명하였다. 이 유전자는 ATG를 개시코돈으로 사용하며, TGA를 종결코돈으로 사용하고 있다. 또한 총 1392 bp의 open reading frame을 포함하며, 463개의 아미노산으로 구성되어있다. SpsB를 구성하는 아미노산 서열은 동일한 속의 sphingan 형성 균주인 Sphingomonas spp S88의 SpsB와 $50\%$, Sphingomonas paucimobilis ATCC 31461의 GelB와 $48\%$의 유사성을 나타내었다. Some genes, which are involved in the biosynthesis of polysaccharides, could be found by the genome project of Sphingomonas chungbukensis DJ77. In this study, we identified the complete nucleotide sequence of a gene, encoding the glucosyl-isoprenyl phosphate-transferase, which catalyzes the first step in the biochemical pathway for the synthesis of the sphingan type polysaccharide. This gene, named spsB, is initiated by the ATG codon and terminated by the TGA, and its open reading frame consists of 1392 bp, encoding 463 amino acids. The predicted amino acid sequence of this enzyme indicates $50\%$ similarity to SpsB of Sphingomonas spp S88, also produces sphingan, and $48\%$ to GelB of Sphingomonas paucimobilis ATCC 31461.
U(6/12) Dynamical Supersymmetry in 171,172Yb
이수연,J. H. Lee,노태익 한국물리학회 2008 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.53 No.2
The U(6/12) dynamical supersymmetry has been discussed within the framework of the inter-acting boson-fermion model, which describes collective states in odd-mass nuclei. In this work, theSU(3)limitofU(6/12)supersymmetryhasbeenconsideredtoexplainthecollectiveproperties of deformed nuclei, with the focus on identical bands in neighboring even-even and odd-A nuclei. The E2 transition rates between low-lying states and the electric quadrupole moments are given in closed form in the SU(3) limit of the U(6/12) symmetry. The present results are applied to the ground-state bands in 171,172Yb and are compared with experimental data.
Bisphosphonate(Zoledronic acid)와 연관된 하악골의 골수염-증례보고
이수연,최소영,김진욱,권대근,장현중,김진수,이상한,Lee, Su-Youn,Choi, So-Young,Kim, Jin-Wook,Kwon, Tae-Geon,Jang, Hyung-Jung,Kim, Chin-Soo,Lee, Sang-Han 대한악안면성형재건외과학회 2008 Maxillofacial Plastic Reconstructive Surgery Vol.30 No.4
Bisphosphonate are a class of drugs with a chemical structure which inhibit bone resorption, actually used for metastatic bone disease, osteoporosis, Paget's disease and multiple myeloma. Significant complication associated with their use is reported recently : mandibular and maxillary osteomyelitis or osteonecrosis. So we here report our case about the patient who was diagnosed of prostate cancer in 2004 April and treated with bisphosphonate(Zoledronic acid-$Zometa^{(R)}$, Novartis Co.) intravenously every 3 to 4weeks at a dose of 4mg to prevent bone metastasis, and also, the patient who came to the hospital due to the bony exposure of mandible and pain in 2006 November and was diagnosed osteomyelitis of mandible as a result of biopsy, bone scan, PET CT examination.
이수연,정주미,황동진,은소희,황평한,Lee, Soo Yeon,Choung, Ju Mi,Hwang, Dong Jin,Eun, So Hee,Hwang, Pyoung Han 대한소아청소년과학회 2002 Clinical and Experimental Pediatrics (CEP) Vol.45 No.12
본 저자들은 경련과 의식저하를 보인 알레르기성 자반증 환아에서 신경학적 합병증으로 대뇌 동맥의 혈관염이 발생된 1례를 경험하였기에 문헌 고찰과 함께 보고하는 바이다. Henoch-Sh${\ddot{o}}$nlein Purpura(HSP) is an immuologically mediated systemic vasculitis of small blood vessels affecting predominantly the skin, gastrointestinal tract, joints, and kidneys. Clinical neurological manifestations such as headaches, behavioral changes, mental changes, seizures, and visual loss are described, but neurological complication are rare during the course of HSP. We experienced a case of an 8 year-old male with HSP who presented with seizures. Magnetic resonance imaging(MRI) showed multiple high signal intensity in both cortical and subcortical areas of frontal and parieto-occipital lobes and magnetic resonance(MR) angiogram showed stenosis of cerebral arteries, compatible with MRI and MR angiogram findings of cerebral vasculitis. We report this case with related literature.
이수연,Sunjin Lee,Ji-Young Ahn,Jung Ho Ko,Lyon Lee,Janet Han,Young-Chang Kim,Yang-Hoon Kim 대한독성 유전단백체 학회 2017 Molecular & cellular toxicology Vol.13 No.4
Chlamydia pneumoniae is an intracellular bacterium associated with several acute respiratory diseases and is an obligate intracellular parasite in eukaryotic cells. Heterogeneous and overexpression of virulence-associated C. pneumoniae “effector” proteins with structurally designed epitope-focused antigens in recombinant forms in Escherichia coli is a prerequisite in the study of the organism’s pathogenic mechanisms and for use in medical applications such as vaccine and therapeutics development. In this study, seven antigen candidates from C. pneumoniae TW-183 (OmpH, Omp11, Eno, ArtJ, IncA, IncB and IncC) were screened in silico genome. Immunogenicity of the heterogeneously overexpressed antigen candidates in E. coli BL21 (DE3) was investigated by Western blot analysis using in sera from C. pneumoniae infected individuals. The soluble forms of three inclusion membrane proteins (IncA, IncB and IncC), carrying unique bilobal hydrophobic domains, were also successfully expressed in E. coli BL21 (DE3) through truncation of their membrane bound transmembrane domains.
이수연,이아름,안지영,Jung Ho Ko,Lyon Lee,Janet Han,Young-Chang Kim,Yang-Hoon Kim 대한독성 유전단백체 학회 2018 Molecular & cellular toxicology Vol.14 No.2
Backgrounds: Muscarinic acetylcholine receptors (mAChRs) are members of G-protein-coupled receptors. They can induce agonist-dependent neoplastic transformation and facilitate colon cancer proliferation via promoting rapid expression of a variety of early responsive genes. Methods: In this study, we used 2-dimensional gel electrophoresis(2-DE) approach with subsequent mass spectrometry (MS) to identify up- and down-regulated proteins (a total of 23 protein spots) involved in mAChRs-related signaling pathway, energy metabolism, transcription/translation, oxidative stress metabolism and cytoskeleton organization in agonist carbachol stimulated HT-29 human colon cells. Results: We found that the increased expression of adenocarcinoma biomarker, annexin A5 (ANXA5) induced by carbachol treatment, which was confirmed by immunoblot. This study contributes to the understanding of mechanisms underlying mAChRs agonist-induced expression of whole proteins in HT-29 colon cancer cells. Conclusion: Our results indicated that ANXA5 might serve as a potential biomarker for the diagnosis of colon cancer.