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( Yeo Ree Yang ),( Rae Seok Lee ),( Tae Hyun Ban ),( Jae Hyun Seo ),( Dae Jun Kim ),( Seung Min Jung ),( Sung Hwan Park ) 대한류마티스학회 2014 대한류마티스학회지 Vol.21 No.1
Ankylosing spondylitis (AS) is a systemic inflammatory disorder that affects the axial skeleton. It often involves the extra-articular organs. Cardiovascular involvement is one of the extra-articular manifestations, which is mostly represented by aortic root, valvular heart disease, and conduction disturbances. An aortic sclerosing inflammatory process induces aortic root thickening and rigidity. An aortic aneurysmal change is a rare complication that often leads to life threatening conditions. A few cases regarding aortic aneurysm have been reported, but there are no reported cases in Korea. We report the first case of descending thoracic and abdominal aortic aneurysm in a patient with ankylosing spondylitis.
Prevalence of serum allergen-specific immunoglobulin E for canine atopic dermatitis in Korea
Hyo-Mi Jang,Gwi-Seon Yeo,Ji-Hyun Kim,Cheol-Yong Hwang,Jae-Eun Hyun,Soon-Shin Kim,Yang-Ho Kang,Dong-In Jung 충북대학교 동물의학연구소 2014 Journal of Biomedical and Translational Research Vol.15 No.4
Canine atopic dermatitis (CAD) is an allergic skin disease with characteristic clinical features associated with immunoglobulin E (IgE) antibodies. Identification of the causative allergens is the diagnostic goal, which is essential to treat and manage CAD patients. CAD is commonly associated with environmental allergens surrounding the patients. For this reason, it is important for diagnostic tests to select allergens that are related to the environment of each country and each province. There are two main allergen-specific tests, serological IgE test (SAT) and intradermal skin test (IDT). SAT did not show direct cutaneous reaction but did show serological reaction against allergens. However, SAT is simpler and more convenient than IDT in small animal practice. In this study, we selected domestically prevalent allergens for SAT, including 60 food allergens and 60 inhalant allergens, and tested eight dogs tentatively diagnosed with CAD based on Favrot’s criteria. Furthermore, IDT was performed on four dogs from the SAT group for comparison of SAT and IDT, and the results were very similar. In SAT, four types of mites (Bloomia tropicalis, Glycophagus domesticus, Euroglyphus maynei, and mite mixture 1 Korea; house dust mites), four types of molds (Botrytis cinerea, Alternaria alternata, mold fungi mixture 11, mold fungi mixture), and one type of pollen (tree pollen mix 3 Korea) induced a reaction in more than half of dogs tested. In IDT, all four dogs reacted positively to Dermatophagoides farinae, and three reacted positively to Dermatophagoides pteronyssinus and house dust. The mean agreement rate between SAT and IDT in this study was 76.3%. This is the first trial to apply local allergens for SAT in Korean veterinary medicine, and it might play an important role for diagnoses and management of animal allergic diseases.
Piperazine Citrate 및 Bephenium Hydroxynaphthoate의 腸內 寄生蟲에 對한 集團驅蟲 效科
余鉉泰,朴相宰,梁龍石 中央醫學社 1973 中央醫學 Vol.24 No.2
This trial was carried out in order to find out the convenient method of anthelmintics administration for mass control of intestinal helminths. The drugs used for the study were piperazine citrate tablet (processed in Korea), piperazine citrate syrup (U.S.P) and bephenium hydroxynaphthoate (purchased from the United Kingdom) and each drugs were administrated in different doses and ways to each different study objective and the following results were obtained; 1. The ascaris egg negative conversion rate in the group used 70mg/kg piperazine citrate tablet, two times with one week interval was 77.3 per cent. 2. The ascaris egg negative conversion rate in the: group used a single dose of 4.40g was 86.6 per cent and that of the group used dose of 3.85g, two time in succeeding day (a total dose of 7. 70g) was 74. 1 per cent and that of the group used dose of 3.85g, three times in succeeding days (a total dose of 11.55g) was 82.3 per cent. 3. The efficacy of bephenium hydroxynaphthoate (Aicopar) against hook-worm, ascaris, trichocephalus and trichostrongylus was 93.6 per cent, 73.3 per cent, 32.6 per cent and 72.2 per cent and 72.2 per cent in egg negative conversion rate and also 98. 9 per cent, 87. 6 percent, 67. 0 per cent and 87. 5 per cent in E. P. G. reduction rate.
Yang, Kyeong Eun,Jang, Hyun‐,Jin,Hwang, In‐,Hu,Chung, Young‐,Ho,Choi, Jong‐,Soon,Lee, Tae‐,Hoon,Chung, Yun‐,Jo,Lee, Min‐,Seung,Lee, Mi Young,Yeo, Eui‐,J BLACKWELL PUBLISHING 2016 AGING CELL Vol.15 No.2
<P><B>Summary</B></P><P>Phenyl‐2‐pyridyl ketoxime (PPKO) was found to be one of the small molecules enriched in the extracellular matrix of near‐senescent human diploid fibroblasts (HDFs). Treatment of young HDFs with PPKO reduced the viability of young HDFs in a dose‐ and time‐dependent manner and resulted in senescence‐associated β‐galactosidase (SA‐β‐gal) staining and G2/M cell cycle arrest. In addition, the levels of some senescence‐associated proteins, such as phosphorylated ERK1/2, caveolin‐1, p53, p16<SUP>ink4a</SUP>, and p21<SUP>waf1</SUP>, were elevated in PPKO‐treated cells. To monitor the effect of PPKO on cell stress responses, reactive oxygen species (ROS) production was examined by flow cytometry. After PPKO treatment, ROS levels transiently increased at 30 min but then returned to baseline at 60 min. The levels of some antioxidant enzymes, such as catalase, peroxiredoxin II and glutathione peroxidase I, were transiently induced by PPKO treatment. SOD II levels increased gradually, whereas the SOD I and III levels were biphasic during the experimental periods after PPKO treatment. Cellular senescence induced by PPKO was suppressed by chemical antioxidants, such as N‐acetylcysteine, 2,2,6,6‐tetramethylpiperidinyloxy, and L‐buthionine‐(<I>S</I>,<I>R</I>)‐sulfoximine. Furthermore, PPKO increased nitric oxide (NO) production via inducible NO synthase (iNOS) in HDFs. In the presence of NOS inhibitors, such as L‐NG‐nitroarginine methyl ester and L‐NG‐monomethylarginine, PPKO‐induced transient NO production and SA‐β‐gal staining were abrogated. Taken together, these results suggest that PPKO induces cellular senescence in association with transient ROS and NO production and the subsequent induction of senescence‐associated proteins<B>.</B></P>
Evaluation of Metabolic Syndrome Risk in Korean Premenopausal Women
Hyun, Yae Jung,Kim, Oh Yoen,Jang, Yangsoo,Ha, Jong-Won,Chae, Jey Sook,Kim, Ji Young,Yeo, Hyun Yang,Paik, Jean Kyung,Lee, Jong Ho Japanese Circulation Society. 2008 CIRCULATION JOURNAL Vol.72 No.8
<P><B>Background</B> In clinical practice, using the patient's waist circumference (WC) to evaluate visceral obesity may underestimate disorders with a metabolic origin. This study examined whether or not the WC derived from the cut-off point of the visceral fat area (VFA) can reflect the features of metabolic syndrome (MetS) in premenopausal women. <B>Methods and Results</B> Computed tomography-scanned VFA, MetS components and the concentrations of high-sensitivity C-reactive protein (CRP) and adiponectin were measured in a total of 349 premenopausal women. The VFA at the L1 and the L4 sites was a significant index (p<0.001) of incremental MetS risk. Receiver-operating characteristic curve analysis showed that 75 cm<SUP>2</SUP> of VFA at L4 and 87.5 cm<SUP>2</SUP> at L1 were the optimal thresholds for discrimination of MetS risk. Significant differences in all MetS components, as well as CRP (p<0.05) and adiponectin levels (p<0.005), were observed when subjects were subdivided by the L4 VFA cut-off point (<75/≥75 cm<SUP>2</SUP>), whereas there was a significant difference only in the triglycerides level in the groups divided by WC (WC <88/≥88 cm). Moreover, subjects with a lower WC - higher VFA showed a similar pattern in MetS components and lower adiponectin than those with a higher WC - higher VFA. <B>Conclusions</B> This study clarified that VFA rather than WC is a major determinant of MetS risk in premenopausal women. (<I>Circ J</I> 2008; <B>72:</B> 1308 - 1315)</P>
Yeo, Marie,Rha, Sung Young,Jeung, Hei Cheul,Hu, Shen Xiong,Yang, Sang Hwa,Kim, Yang Seok,An, Sung Whan,Chung, Hyun Cheol Wiley Subscription Services, Inc., A Wiley Company 2005 International journal of cancer: Journal internati Vol.114 No.3
<P>Ribozyme possesses specific endoribonuclease activity and catalyzes the hydrolysis of specific phosphodiester bonds, which results in the cleavage of target RNA sequences. Here, we evaluated the ability of hammerhead ribozymes targeting human telomerase RNA (hTR) to inhibit the catalytic activity of telomerase and the proliferation of cancer cells. Hammerhead ribozymes were designed against 7 NUX sequences located in open loops of the hTR secondary structure. We verified the ribozyme specificity by in vitro cleavage assay by using a synthetic RNA substrate. Subsequently, we introduced ribozyme expression vector into human breast tumor MCF-7 cells and assessed the biologic effects of ribozyme. Hammerhead ribozyme R1 targeting the template region of hTR efficiently cleaved hTR in vitro, and stable transfectants of this ribozyme induced the degradation of target hTR RNA and attenuated telomerase activity in MCF-7 cells. Moreover, the ribozyme R1 transfectant displayed a significant telomere shortening and a lower proliferation rate than parental cells. Clones with reduced proliferation capacity showed enlarged senescence-like shapes or highly differentiated dendritic morphologies of apoptosis. In conclusion, the inhibition of telomerase activity by hammerhead ribozyme targeting the template region of the hTR presents a promising strategy for inhibiting the growth of human breast cancer cells. © 2004 Wiley-Liss, Inc.</P>
Yeo Jin Lee,Young Min Son,Min Jeong Gu,Ki-Duk Song,Sung-Moo Park,Hyo Jin Song,Jae Sung Kang,Jong Soo Woo,Jee Hyung Jung,Deok-Chun Yang,Seung Hyun Han,Cheol-Heui Yun 고려인삼학회 2015 Journal of Ginseng Research Vol.39 No.1
Background: Panax ginseng (i.e., ginseng) root is extensively used in traditional oriental medicine. It is a modern pharmaceutical reagent for preventing various human diseases such as cancer. Ginsenosidesd-the major active components of ginsengdexhibit immunomodulatory effects. However, the mechanism and function underlying such effects are not fully elucidated, especially in human monocytes and dendritic cells (DCs). Methods: We investigated the immunomodulatory effect of ginsenosides from Panax ginseng root on CD14⁺ monocytes purified from human adult peripheral blood mononuclear cells (PBMCs) and on their differentiation into DCs that affect CD4⁺ T cell activity. Results: After treatment with ginsenoside fractions, monocyte levels of tumor necrosis factor (TNF)-α, interleukin (IL)-6, and IL-10 increased through phosphorylation of extracellular signal-regulated kinase (ERK)1/2 and c-Jun N-terminal kinase (JNK), but not p38 mitogen-activated protein kinase (MAPK). After treatment with ginsenoside fractions, TNF-α production and phosphorylation of ERK1/2 and JNK decreased in lipopolysaccharide (LPS)-sensitized monocytes.We confirmed that DCs derived from CD14⁺ monocytes in the presence of ginsenoside fractions (Gin-DCs) contained decreased levels of the costimulatory molecules CD80 and CD86. The expression of these costimulatory molecules decreased in LPS-treated DCs exposed to ginsenoside fractions, compared to their expression in LPS-treated DCs in the absence of ginsenoside fractions. Furthermore, LPS-treated Gin-DCs could not induce proliferation and interferon gamma (IFN-γ) production by CD4⁺ T cells with the coculture of Gin-DCs with CD4⁺ T cells. Conclusion: These results suggest that ginsenoside fractions from the ginseng root suppress cytokine production and maturation of LPS-treated DCs and downregulate CD4⁺ T cells.