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Wu CH, Wang MZ, Abe K, Adachi I, Aihara H, Aulchenko V, Aushev T, Bahinipati S, Bakich AM, Balagura V, Bay A, Belous K, Bitenc U, Bizjak I, Blyth S, Bondar A, Bozek A, Browder TE, Chao Y, Chen A, Chen WT, Cheon BG, Choi Y, Choi YK, Chuvikov A, Cole S, Dalseno J, Danilov M, Dash M, Eidelman S, Gabyshev N, Gershon T, Go A, Gokhroo G, Gorisek A, Ha H, Haba J, Hayasaka K, Hayashii H, Hazumi M, Heffernan D, Hokuue T, Hou S, Hou WS, Hsiung YB, Iijima T, Inami K, Ishikawa A, Itoh R, Iwasaki M, Iwasaki Y, Kang JH, Kataoka SU, Katayama N, Kawai H, Kawasaki T, Khan HR, Kichimi H, Kim HJ, Kim HO, Kim YJ, Krizan P, Krokovny P, Kulasiri R, Kumar R, Kuo CC, Kuzmin A, Kwon YJ, Leder G, Lee J, Lee YJ, Lesiak T, Lin SW, Liventsev D, Majumder G, Mandl F, Matsumoto T, Matyja A, McOnie S, Mitaroff W, Miyabayashi K, Miyake H, Miyata H, Miyazaki Y, Mizuk R, Mori T, Nakano E, Nakao M, Natkaniec Z, Nishida S, Nitoh O, Ogawa S, Ohshima T, Okabe T, Okuno S, Olsen SL, Onuki Y, Ozaki H, Pakhlov P, Palka H, Park H, Park KS, Pestotnik R, Piilonen LE, Sakai Y, Schietinger T, Schneider O, Schwartz AJ, Seidl R, Sevior ME, Shapkin M, Shibuya H, Sidorov V, Sokolov A, Somov A, Soni N, Stanic S, Staric M, Stoeck H, Sumiyoshi T, Takasaki F, Tanaka M, Taylor GN, Teramoto Y, Tian XC, Tsuboyama T, Tsukamoto T, Uehara S, Uglov T, Ueno K, Uno S, Urquijo P, Usov Y, Varner G, Wang CC, Wang CH, Watanabe Y, Won E, Yabsley BD, Yamaguchi A, Yamashita Y, Zhang LM, Zhang ZP. Study of J/psi-->pp[over],LambdaLambda[over] and observation of eta(c)-->LambdaLambda[over] at Belle. PHYSICAL REVIEW LETTERS 2006; 97:162003. [PMID: 17155387 DOI: 10.1103/physrevlett.97.162003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/12/2006] [Indexed: 05/12/2023]
Abstract
We study the baryonic charmonium decays of B mesons B+-->etacK+ and B+-->J/psiK+, where the etac and J/psi subsequently decay into a pp[over] or LambdaLambda[over] pair. We measure the J/psi-->pp[over] and LambdaLambda[over] anisotropy parameters alphaB=-0.60+/-0.13+/-0.14 (pp[over]), -0.44+/-0.51+/-0.31 (LambdaLambda[over ]) and compare to results from e;{+}e;{-}-->J/psi formation experiments. We also report the first observation of etac-->LambdaLambda[over]. The measured branching fraction is B(etac-->LambdaLambda[over ])=(0.87(+0.24)/(-0.21)(stat)(+0.09/-0.14) (syst)+/-0.27(PDG))x10-3. This study is based on a 357 fb-1 data sample recorded on the Upsilon(4S) resonance with the Belle detector at the KEKB asymmetric-energy e+ e- collider.
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Chung SS, Choi HH, Cho YM, Lee HK, Park KS. Sp1 mediates repression of the resistin gene by PPARγ agonists in 3T3-L1 adipocytes. Biochem Biophys Res Commun 2006; 348:253-8. [PMID: 16876120 DOI: 10.1016/j.bbrc.2006.07.048] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2006] [Accepted: 07/12/2006] [Indexed: 11/20/2022]
Abstract
Resistin is an adipokine related to obesity and insulin resistance. Expression of the resistin gene is repressed by the treatment of peroxisome proliferator-activated receptor gamma (PPARgamma) agonists, thiazolidinediones (TZDs). In this study, we investigated the mechanism by which TZDs inhibit the resistin gene expression. Resistin gene expression was decreased by TZD in fully differentiated 3T3-L1 adipocytes, which was abolished after treatment of cycloheximide (a protein synthesis inhibitor). TZD could not repress the expression of the resistin gene in the presence of mithramycin A (an Sp1 binding inhibitor). Sp1 binding site of the resistin promoter (-122/-114bp) was necessary for the repression. Further investigation of the effect of TZDs on the modification of Sp1 showed that the level of O-glycosylation of Sp1 was decreased in this process. These results suggest that PPARgamma activation represses the expression of the resistin gene by modulating Sp1 activity.
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153
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Park KS, Nam JH, Lee ES, Choi JS, Bang D, Lee S. Increased risk of human leukocyte antigen-G gene variants in Behçet's disease. Clin Exp Rheumatol 2006; 24:S126-7. [PMID: 17067446] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
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154
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Matsuzaki Y, Xu Y, Ikegami M, Besnard V, Park KS, Hull WM, Wert SE, Whitsett JA. Stat3 is required for cytoprotection of the respiratory epithelium during adenoviral infection. THE JOURNAL OF IMMUNOLOGY 2006; 177:527-37. [PMID: 16785550 DOI: 10.4049/jimmunol.177.1.527] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
The role of Stat3 in the maintenance of pulmonary homeostasis following adenoviral-mediated lung injury was assessed in vivo. Stat3 was selectively deleted from bronchiolar and alveolar epithelial cells in Stat3(DeltaDelta) mice. Although lung histology and function were unaltered by deletion of Stat3 in vivo, Stat3(DeltaDelta) mice were highly susceptible to lung injury caused by intratracheal administration of AV1-GFP, an early (E) region 1- and E3-deleted, nonproliferative adenovirus. Severe airspace enlargement, loss of alveolar septae, and sloughing of the bronchiolar epithelium were observed in Stat3(DeltaDelta) mice as early as 1 day after exposure to the virus. Although surfactant protein A, B, and C content and surfactant protein-B mRNA expression in Stat3(DeltaDelta) mice were similar, TUNEL staining and caspase-3 were increased in alveolar type II epithelial cells of Stat3(DeltaDelta) mice after exposure to virus. RNA microarray analysis of type II epithelial cells isolated from Stat3(DeltaDelta) mice demonstrated significant changes in expression of numerous genes, including those genes regulating apoptosis, supporting the concept that the susceptibility of Stat3-deficient mice to adenovirus was related to the role of Stat3 in the regulation of cell survival. AV1-Bcl-x(L), an E1- and E3-deleted, nonproliferative adenovirus expressing the antiapoptotic protein Bcl-x(L), protected Stat3(DeltaDelta) mice from adenoviral-induced lung injury. Adenoviral infection of the lungs of Stat3-deficient mice was associated with severe injury of the alveolar and bronchiolar epithelium. Thus, Stat3 plays a critical cytoprotective role that is required for epithelial cell survival and maintenance of alveolar structures during the early phases of pulmonary adenoviral infection.
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Garmash A, Abe K, Abe K, Adachi I, Aihara H, Asano Y, Aushev T, Aziz T, Bahinipati S, Bakich AM, Barbero M, Bedny I, Bitenc U, Bizjak I, Bondar A, Bozek A, Bracko M, Brodzicka J, Browder TE, Chang P, Chao Y, Chen A, Chen KF, Chen WT, Cheon BG, Chistov R, Choi Y, Choi YK, Chuvikov A, Dalseno J, Danilov M, Dash M, Dragic J, Drutskoy A, Eidelman S, Epifanov D, Fratina S, Gabyshev N, Gershon T, Go A, Gokhroo G, Golob B, Gorisek A, Ha HC, Hara T, Hasegawa Y, Hastings NC, Hayasaka K, Hayashii H, Hazumi M, Hokuue T, Hoshi Y, Hou S, Hou WS, Hsiung YB, Iijima T, Imoto A, Inami K, Ishikawa A, Itoh R, Iwasaki M, Iwasaki Y, Kapusta P, Katayama N, Kawai H, Kawasaki T, Khan HR, Kichimi H, Kim SK, Kim SM, Kinoshita K, Korpar S, Krizan P, Krokovny P, Kulasiri R, Kuo CC, Kuzmin A, Kwon YJ, Lee SE, Lesiak T, Limosani A, Lin SW, Liventsev D, Mandl F, Marlow D, Matsumoto T, Matyja A, Mitaroff W, Miyabayashi K, Miyake H, Miyata H, Miyazaki Y, Nagamine T, Nakano E, Nakao M, Natkaniec Z, Nishida S, Nitoh O, Noguchi S, Ohshima T, Okabe T, Okuno S, Olsen SL, Ozaki H, Park CW, Park H, Park KS, Peak LS, Pestotnik R, Piilonen LE, Rozanska M, Sakai Y, Satoyama N, Schietinger T, Schneider O, Schümann J, Schwanda C, Schwartz AJ, Seidl R, Sevior ME, Shibuya H, Shwartz B, Singh JB, Somov A, Stamen R, Stanic S, Staric M, Sumiyoshi T, Suzuki S, Suzuki SY, Takasaki F, Tamai K, Tamura N, Tanaka M, Taylor GN, Teramoto Y, Tian XC, Trabelsi K, Tsuboyama T, Tsukamoto T, Uehara S, Uglov T, Uno S, Urquijo P, Varner G, Varvell KE, Villa S, Wang CH, Wang MZ, Watanabe Y, Won E, Xie QL, Yamaguchi A, Yamauchi M, Yang H, Zhang LM, Zhang ZP, Zhilich V, Zürcher D. Evidence for large direct CP violation in B+/- --> rho(770)0K+/- from analysis of three-body charmless B+/- --> K+/-pi+/-pi+/- decays. PHYSICAL REVIEW LETTERS 2006; 96:251803. [PMID: 16907296 DOI: 10.1103/physrevlett.96.251803] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/27/2005] [Indexed: 05/11/2023]
Abstract
We report results on a Dalitz analysis of three-body charmless B+/- --> K+/-pi+/-pi+/- decay including searches for direct CP violation. We report the first observation of the decay B+/- --> f2(1270)K+/- with a statistical significance above 6sigma. We also observe first evidence for large direct CP violation in the B+/- --> rho(770)0K+/- channel. The results are obtained with a data sample that contains 386 10(6) BB pairs collected at the Y(4s) resonance with the Belle detector at the KEKB asymmetric-energy e+e- collider.
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156
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Park KS, Shin HD, Park BL, Cheong HS, Cho YM, Lee HK, Lee JY, Lee JK, Kim HT, Park CS, Han BG, Kimm K, Oh B. Putative association of peroxisome proliferator-activated receptor gamma co-activator 1beta (PPARGC1B) polymorphism with Type 2 diabetes mellitus. Diabet Med 2006; 23:635-42. [PMID: 16759305 DOI: 10.1111/j.1464-5491.2006.01882.x] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
AIMS Peroxisome proliferator-activated receptor gamma co-activator 1beta (PPARGC1B) may play an important role in obesity and Type 2 diabetes mellitus (T2DM). In an effort to identify genetic polymorphisms in potential candidate genes for T2DM, genetic associations of PPARGC1B were examined in a Korean T2DM study. METHODS We have sequenced the PPARGC1B, and examined its association with T2DM and diabetic phenotypes in a Korean T2DM study (775 T2DM patients and 316 control subjects) using the TaqMan method. Logistic and multiple regression models were employed to analyse the genetic contributions of polymorphisms. Nineteen polymorphisms were identified in PPARGC1B. RESULTS By logistic regression analysis controlling for age and sex as covariates, one non-synonymous single-nucleotide polymorphism (SNP; +102605C>A; Arg292Ser) in exon 5 showed marginal significant associations with the risk of T2DM. The allele frequency of the minor allele ['A (= Ser)' allele of +102605C>A] was lower among T2DM patients (frequency = 0.101) than among control subjects (frequency = 0.135) [P = 0.03, OR = 0.71 (95% CI: 0.51-0.94)]. Furthermore, serum triglyceride level was also associated with this non-synonymous SNP (+102605C>A; Arg292Ser) in exon 5 among controls (P = 0.03 in the dominant analysing model). Serum triglyceride levels [1.46 +/- 0.70 (log-transformed value; 0.12 +/- 0.18)] were lower in individuals who carry one or two copies of minor alleles than among others [1.60 +/- 0.85 (log-transformed value; 0.16 +/- 0.21)]. CONCLUSION The present study provides, for the first time, information about genetic polymorphisms in PPARGC1B and putative associations of one non-synonymous SNP with the risk of T2DM and serum triglyceride (TG) levels in the Korean population, although this result was not significant after correction for multiple testing.
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157
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Park KS, Wells JM, Zorn AM, Wert SE, Whitsett JA. Sox17 influences the differentiation of respiratory epithelial cells. Dev Biol 2006; 294:192-202. [PMID: 16574095 DOI: 10.1016/j.ydbio.2006.02.038] [Citation(s) in RCA: 54] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2005] [Revised: 02/20/2006] [Accepted: 02/22/2006] [Indexed: 10/24/2022]
Abstract
The Sry-related HMG box transcription factor, Sox17, is required for formation of definitive endoderm that gives rise to various organs, including thyroid, lung, liver, pancreas, and intestine. While expressed at high levels in the embryonic endoderm, Sox17 is also expressed in mature tissues, including the lung. Sox17 expression in respiratory epithelial cells was first detected in the fetal lung at embryonic day 18. Thereafter, Sox17 expression was restricted primarily to ciliated cells, suggesting its potential role in airway cell differentiation. When expressed in epithelial cells of the embryonic lung, Sox17 inhibited peripheral epithelial cell differentiation and disrupted branching morphogenesis. In vitro, Sox17 inhibited Sftpc and enhanced Foxj1 promoter activity, consistent with its expression in proximal airway cells. Conditional expression of Sox17 in peripheral respiratory epithelial cells of adult lung induced hyperplastic clusters of cells expressing increased levels of beta-catenin and differentiation markers representing multiple proximal respiratory epithelial cell types. Sox17 prolonged survival and enhanced growth and differentiation of respiratory epithelial cells in vitro. Sox17 induced plasticity of respiratory epithelial cells, reprogramming alveolar cells into epithelial cells with characteristics more typical of the proximal airway. Sites of expression and the effects of Sox17 in vivo and in vitro are consistent with a role for Sox17 or other members of the Sox family of transcription factors in differentiation of the conducting airway epithelium.
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158
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Lee JS, Lee DS, Ahn JY, Cheon GJ, Kim SK, Yeo JS, Park KS, Chung JK, Lee MC. Parametric image of myocardial blood flow generated from dynamic H2(15)O PET using factor analysis and cluster analysis. Med Biol Eng Comput 2006; 43:678-85. [PMID: 16411642 DOI: 10.1007/bf02351043] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
Algorithm-based parametric imaging of myocardial blood flow (MBF), as measured by H2(15)O PET, has been the goal of many research efforts. A method for generating parametric images of regional MBF by factor and cluster analysis on H2(15)O dynamic myocardial PET was validated by its comparison with gold-standard MBF values determined invasively using radiolabelled microspheres. Right and left ventricular blood pool activities and their factor images were obtained by the application of factor analysis to dynamic frames. By subtraction of the factor images multiplied by their corresponding values on the factors from the original dynamic images for each frame, pure tissue dynamic images were obtained, from which arterial blood activities were excluded. Cluster analysis that averaged pixels having time-activity curves with the same shape was applied to pure tissue images to generate parametric MBF images. The usefulness of this method for quantifying regional MBF was evaluated using canine experiment data. H2(15)O PET scans and microsphere studies were performed on seven dogs at rest and after pharmacological stress. The image qualities and the contrast of parametric images obtained using the proposed method were significantly improved over either the tissue factor images or the parametric images obtained using a conventional method. Regional MBFs obtained using the proposed method correlated well with those obtained by the region of interest method (r = 0.94) and by the microsphere technique (r = 0.90). A non-invasive method is presented for generating parametric images of MBF from H2(15)O PET, using factor and cluster analysis.
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159
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Shin HD, Park KS, Park BL, Cheong HS, Cho YM, Lee HK, Lee JY, Lee JK, Kim HT, Han BG, Kim JW, Koh I, Kim YJ, Oh B, Kimm K, Park C. Common promoter polymorphism in monocyte differentiation antigen CD14 is associated with serum triglyceride levels and body mass index in non-diabetic individuals. Diabet Med 2006; 23:72-6. [PMID: 16409569 DOI: 10.1111/j.1464-5491.2005.01732.x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
AIMS Growing evidence supports the hypothesis that chronic low-grade inflammation related to innate immunity may play an important role in the pathophysiology of Type 2 diabetes mellitus (T2DM). The monocyte differentiation antigen CD14 gene (CD14) acts as the receptor for lipopolysaccharide (LPS) and augments monocyte/macrophage inflammatory responses. METHODS We have sequenced the gene, including all exons, exon/intron boundaries, and the -1.5 kb of the 5' flanking region. Two common loci (minor allele frequency > 0.05) were genotyped in 775 T2DM patients and 316 control subjects recruited in the Korean T2DM Study. RESULTS Eight polymorphisms, including four non-synonymous forms, were identified in CD14. No polymorphisms were found in association with T2DM. However, one common promoter SNP (-260T>C) was significantly associated with both the serum triglyceride level (TG) and body mass index (BMI) in non-diabetic control subjects. Individuals who carried the minor allele (C) had higher TG levels (1.65 +/- 0.81 vs. 1.46 +/- 0.80 mmol/l; P = 0.0007) and BMI (23.96 +/- 3.00 vs. 23.28 +/- 3.22 kg/m(2); P = 0.04) as compared with subjects carrying T/T genotypes. CONCLUSION Our data suggest that lipid metabolism and obesity, important pathophysiological elements of T2DM and the metabolic syndrome, are regulated by complex mechanisms that include the CD14 gene polymorphism-mediated genetic propensity to non-specific inflammatory responses.
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Park KS, Wells JM, Zorn AM, Wert SE, Laubach VE, Fernandez LG, Whitsett JA. Transdifferentiation of ciliated cells during repair of the respiratory epithelium. Am J Respir Cell Mol Biol 2005; 34:151-7. [PMID: 16239640 PMCID: PMC2644179 DOI: 10.1165/rcmb.2005-0332oc] [Citation(s) in RCA: 159] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Since the lung is repeatedly subjected to injury by pathogens and toxicants, maintenance of pulmonary homeostasis requires rapid repair of its epithelial surfaces. Ciliated bronchiolar epithelial cells, previously considered as terminally differentiated, underwent squamous cell metaplasia within hours after bronchiolar injury with naphthalene. Expression of transcription factors active in morphogenesis and differentiation of the embryonic lung, including beta-catenin, Foxa2, Foxj1, and Sox family members (Sox17 and Sox2), was dynamically regulated during repair and redifferentiation of the bronchiolar epithelium after naphthalene injury. Squamous cells derived from ciliated cells spread beneath injured Clara cells within 6-12 h after injury, maintaining the integrity of the epithelium. Dynamic changes in cell shape and gene expression, indicating cell plasticity, accompanied the transition from squamous to cuboidal to columnar cell types as differentiation-specific cell markers typical of the mature airway were restored. Similar dynamic changes in the expression of these transcription factors occurred in ciliated and Clara cells during regeneration of the lung after unilateral pneumonectomy. Taken together, these findings demonstrate that ciliated epithelial cells spread and transdifferentiate into distinct epithelial cell types to repair the airway epithelium.
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161
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Lim S, Park KS, Kim MS, Cho BY, Lee HK. Relationship between various surrogate indices of insulin resistance and mitochondrial DNA content in the peripheral blood of 18 healthy volunteers. Mitochondrion 2005; 1:71-7. [PMID: 16120270 DOI: 10.1016/s1567-7249(01)00003-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2000] [Revised: 02/06/2001] [Accepted: 02/07/2001] [Indexed: 11/21/2022]
Abstract
Mutations or deletions of mitochondrial DNA (mtDNA) are associated with diabetes mellitus. In this study, we investigated the relationships between the mtDNA content in peripheral blood and surrogate indices of insulin resistance in 18 healthy young women (mean age 20.8 +/- 1.5 years). The mtDNA content was significantly correlated with the area under the curve of insulin during an oral glucose tolerance test (r = -0.622), the homeostasis model assessment for insulin resistance (r = -0.616), the ratio of fasting glucose to insulin concentration (r = 0.586) and the fasting insulin level (r = -0.552). Further study is warranted to elucidate the mechanism by which the mtDNA content is associated with insulin resistance.
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162
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Shin HD, Park BL, Kim LH, Cheong HS, Kim JH, Cho YM, Lee HK, Park KS. Association of a polymorphism in the gene encoding phosphoenolpyruvate carboxykinase 1 with high-density lipoprotein and triglyceride levels. Diabetologia 2005; 48:2025-32. [PMID: 16132948 DOI: 10.1007/s00125-005-1917-x] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/04/2005] [Accepted: 05/16/2005] [Indexed: 10/25/2022]
Abstract
AIMS/HYPOTHESIS Phosphoenolpyruvate carboxykinase (PCK) is the key enzyme involved in the regulation of gluconeogenesis. The aim of this study was to identify genetic polymorphisms in potential candidate genes for type 2 diabetes by sequencing all exons in the PCK genes (PCK1 and PCK2), and examining the association with type 2 diabetes and diabetic phenotypes in a Korean population (775 type 2 diabetic patients and 316 normal control subjects). MATERIALS AND METHODS Twenty-two polymorphisms in PCK1 and PCK2 were identified in a Korean population (n=24) by direct DNA sequencing. The TaqMan genotyping method was applied for genotyping the remainder of the study population. Associations of PCK polymorphisms with the risk of type 2 diabetes and diabetic phenotypes were analysed using logistic and multiple regressions, adjusting for age, sex and BMI. RESULTS Although no significant associations between the genetic polymorphisms in PCK genes and the risk of type 2 diabetes were detected, in further haplotype analysis, one of the common haplotypes, PCK1 ht3, revealed susceptibility to type 2 diabetes (p=0.006). One 3' untranslated region (UTR) single nucleotide polymorphism (SNP) also showed an association with HDL levels among non-diabetic control subjects: individuals homozygous for the major allele (T/T) had the lowest HDL level (1.11+/-0.32 mmol/l), heterozygotes (T/C) had an intermediate level (1.27+/-0.37 mmol/l), and those homozygous for the minor allele (C/C) had the highest level (1.39+/-0.28 mmol/l) (p=0.000003). This 3' UTR SNP was also associated with triglyceride levels, with a lower triglyceride level observed among individuals who were homozygous for the minor allele (C/C) than among those who were not. CONCLUSIONS/INTERPRETATION The strong genetic association of HDL and triglyceride levels with variation/haplotype information identified in this study would be useful for further genetic epidemiological studies of this important gene.
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Cho YM, Shin HD, Park BL, Kim JH, Park KS, Kim SY, Lee HK. Association between polymorphisms in the nuclear respiratory factor 1 gene and type 2 diabetes mellitus in the Korean population. Diabetologia 2005; 48:2033-8. [PMID: 16082529 DOI: 10.1007/s00125-005-1855-7] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/16/2004] [Accepted: 04/02/2005] [Indexed: 01/07/2023]
Abstract
AIMS/HYPOTHESIS Dysfunction in mitochondrial oxidative phosphorylation plays a central role in insulin resistance and type 2 diabetes. Nuclear respiratory factor 1 (NRF1) is a transcription factor that acts on nuclear genes encoding respiratory subunits and components of the mitochondrial transcription and replication machinery. Thus, we investigated its genetic association with type 2 diabetes. METHODS The NRF1 gene was sequenced to identify polymorphisms in 24 Korean DNA samples and then common variants were genotyped in 766 patients with type 2 diabetes and 303 non-diabetic subjects. RESULTS Twelve single nucleotide polymorphisms and one insertion/deletion polymorphism were identified. Six common variants among them were genotyped in a larger study. Although three individual polymorphisms appeared to be associated with type 2 diabetes (g.-46350insdel A, g.+141G>T and g.+54529A>G), the effects were only marginal. However, a haplotype (H2) was associated with a decreased risk of type 2 diabetes and another haplotype (H4) was associated with an increased risk of type 2 diabetes (p values for the Haplo. Score test were 0.009 and 0.004, respectively). CONCLUSIONS/INTERPRETATION We demonstrated that two common haplotypes of NRF1 gene are associated with type 2 diabetes in the Korean population.
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Shin DI, Shin KH, Kim IK, Park KS, Lee TS, Kim SI, Lim KS, Huh SJ. Low-power hybrid wireless network for monitoring infant incubators. Med Eng Phys 2005; 27:713-6. [PMID: 16139769 DOI: 10.1016/j.medengphy.2004.12.010] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2004] [Revised: 11/15/2004] [Accepted: 12/17/2004] [Indexed: 11/30/2022]
Abstract
We have created a pilot wireless network for the convenient monitoring of temperature and humidity of infant incubators. This system combines infrared and radio frequency (RF) communication in order to minimize the power consumption of slave devices, and we therefore call it a hybrid wireless network. The slave module installed in the infant incubator receives the calling signal from the host with an infrared receiver, and sends temperature and humidity data to the host with an RF transmitter. The power consumption of the host system is not critical, and hence it uses the maximum power of infrared transmission and continuously operating RF receiver. In our test implementation, we included four slave devices. The PC calls each slave device every second and then waits for 6 s, resulting in a total scan period of 10 s. Slave devices receive the calling signals and transmit three data values (temperature, moisture, and skin temperature); their power demand is 1 mW, and can run for about 1000 h on four AA-size nickel-hydride batteries.
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165
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Park KS, Min K, Nam JH, Bang D, Lee ES, Lee S. Association of HYPA haplotype in the mannose-binding lectin gene-2 with Behçet's disease. ACTA ACUST UNITED AC 2005; 65:260-5. [PMID: 15730518 DOI: 10.1111/j.1399-0039.2005.00363.x] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Behcet's disease (BD) is a multisystemic, recurrent inflammatory disease caused by the combinations of multiple genetic and environmental factors. Moreover, the MBL2 gene single-nucleotide polymorphisms and haplotypes are known to increase the susceptibility to inflammatory disease and to alter the serum levels of mannose-binding lectin (MBL. We postulated that the haplotypes of the MBL2 gene influence therapeutic response in BD, thus affecting the clinical symptoms in 282 BD patients. The promoter region, MBL2-550*C/*C (L/L) homozygote was found to have a lower frequency in BD patients than that in controls. No difference was observed in the allele frequencies of G-221C (Y/X), C+4T (P/Q) or Gly54Asp (A/B) of the MBL2 gene in BD patients and in controls. The HYPA haplotype contributed to BD occurrence, whereas the LYPA haplotype was negatively associated with BD. BD patients with several symptoms and with an earlier disease-onset age had a higher HYPA haplotype frequency. BD patients showing poor response (S) to therapy had a higher HYPA frequency than those showing good response (M). It seems that possessing HYPA increases the risk of BD and that the MBL2 HYPA haplotype plays a role in MBL levels and increases the susceptibility to BD.
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166
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Moon MK, Cho YM, Jung HS, Park YJ, Yoon KH, Sung YA, Park BL, Lee HK, Park KS, Shin HD. Genetic polymorphisms in peroxisome proliferator-activated receptor gamma are associated with Type 2 diabetes mellitus and obesity in the Korean population. Diabet Med 2005; 22:1161-6. [PMID: 16108843 DOI: 10.1111/j.1464-5491.2005.01599.x] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
AIMS We examined whether the common polymorphisms of the peroxisome proliferator-activated receptor-gamma (PPARgamma) gene are associated with Type 2 diabetes or obesity in the Korean population. METHODS We genotyped two common PPARgamma polymorphisms (Pro12Ala and 161C > T) and examined their association with the clinical phenotypes found in 684 patients with Type 2 diabetes mellitus and 291 non-diabetic control subjects. RESULTS The 12Ala allele was less frequent in the Type 2 diabetic patients than in the non-diabetic control subjects (0.036 vs. 0.053, P = 0.024). The allele frequencies of the 161C > T polymorphism did not differ between the control and Type 2 diabetic group (0.158 vs. 0.173). In the non-diabetic controls, those with the T allele had lower BMI and fasting serum triglyceride (TG) concentrations than those with the C/C homozygote (22.7 +/- 2.9 vs. 23.8 +/- 3.2 kg/m2, P = 0.002; 1.45 +/- 0.81 vs. 1.65 +/- 0.83 mmol/l, P = 0.03, respectively). The 12Ala-161T haplotype was associated with a decreased risk for Type 2 diabetes (OR = 0.47, P = 0.009), whereas the 12Pro-161T haplotype was associated with lower BMI and lower fasting serum TG (22.5 +/- 2.8 vs. 23.7 +/- 3.2 kg/m2, P = 0.004; 1.41 +/- 0.87 vs. 1.64 +/- 0.79 mmol/l, P = 0.02, respectively). CONCLUSIONS The PPARgamma 12Ala allele was associated with a reduced risk of Type 2 diabetes, whereas the PPARgamma 161T allele was associated with lower BMI and fasting serum TG concentrations in the Korean subjects. The subjects with 12Ala-161T haplotypes had a reduced risk of Type 2 diabetes.
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Kim JH, Shin HD, Park BL, Cho YM, Kim SY, Lee HK, Park KS. Peroxisome proliferator-activated receptor gamma coactivator 1 alpha promoter polymorphisms are associated with early-onset type 2 diabetes mellitus in the Korean population. Diabetologia 2005; 48:1323-30. [PMID: 15937669 DOI: 10.1007/s00125-005-1793-4] [Citation(s) in RCA: 37] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/07/2004] [Accepted: 02/28/2005] [Indexed: 11/28/2022]
Abstract
AIMS/HYPOTHESIS Peroxisome proliferator-activated receptor gamma coactivator 1 alpha (PGC-1alpha) is a transcriptional coactivator implicated in insulin release by beta cells and in insulin resistance. Therefore, genetic variation of PPARGC1A could be implicated in the onset of type 2 diabetes. In this study, we examined whether the PPARGC1A gene locus is associated with type 2 diabetes mellitus. We also investigated its association with clinical and metabolic parameters in healthy and diabetic subjects. METHODS After sequencing exons and their boundaries of the PPARGC1A gene, including the promoter region ( approximately 1.5 kb), we genotyped eight common single nucleotide polymorphisms (SNPs) in an association study comprising 762 unrelated patients with type 2 diabetes and 303 non-diabetic control patients. We divided the patients with type 2 diabetes into quartiles or three groups according to age at diagnosis of type 2 diabetes (early-onset: <40 years of age, average-onset: 40< or = <60 years, and late-onset: > or =60 years). RESULTS There was no strong association between SNPs or haplotypes of PPARGC1A and type 2 diabetes. However, the SNPs of g.-1789G>A and g.-1437C>T were associated with the age at diagnosis of type 2 diabetes (p=0.042 and p=0.032, respectively). In addition, the promoter SNPs of g.-1789G>A and g.-1437C>T and the haplotypes ht2 (-1789A and -1437T) were significantly associated with early-onset type 2 diabetes (p=0.002, p=0.001 and p=0.001, respectively). CONCLUSIONS/INTERPRETATION Our results suggest that PPARGC1A promoter polymorphisms are associated with age at diagnosis of type 2 diabetes and early-onset type 2 diabetes in the Korean population.
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Lee SS, Yoon HJ, Chang HK, Park KS. Fibromyalgia in Behçet's disease is associated with anxiety and depression, and not with disease activity. Clin Exp Rheumatol 2005; 23:S15-9. [PMID: 16273759] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
OBJECTIVE To determine the prevalence of fibromyalgia (FM) in Korean patients with Behçet's disease (BD) and to evaluate the association between FM and clinical and psychological variables. METHODS Seventy patients with BD were examined for FM tender points and asked to complete a Korean version of the Fibromyalgia Impact Questionnaire (FIQ). Disease activity was measured using the erythrocyte sedimentation rate (ESR), C-reactive protein (CRP), and a clinical activity score, which was calculated by summing the clinical manifestations. The State-Trait Anxiety Inventory (STAI) and Beck Depression Inventory (BDI) were used for psychometric scoring. RESULTS Twenty-six BD patients (37.1%) met the American College of Rheumatology criteria for FM. The patients who met the criteria for FM were more frequently female, less frequently employed, and less well educated. Age, disease duration, clinical manifestations, medication, and measures of disease activity did not differ between BD patients with and without FM. Nevertheless, BD patients with FM had higher STAI and BDI scores than did patients without FM (all p < 0.05). FM tender points were significantly correlated with the STAI and BDI, and not with disease activity variables. The FIQ scores were also strongly correlated with the STAI and BDI scores, and not with disease activity. CONCLUSION FM was very common among BD patients and was associated with the presence of anxiety and depression, and not with disease activity.
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Kim SH, Park KS, Chang MJ, Sung JH. Effects of Panax ginseng extract on exercise-induced oxidative stress. J Sports Med Phys Fitness 2005; 45:178-82. [PMID: 16355078] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
AIM This study was designed to study the effects of Panax ginseng extract (PGE) on lipid peroxidation and scavenger enzymes induced by an acute exhaustive exercise in sedentary humans. METHODS Seven healthy male subjects performed 2 exhaustive incremental exercises on the treadmill before and after 8 weeks' PGE ingestion (2 g each time, 3 times a day) as the control and PGE exercise, respectively. VO2, HR, and exercise duration during exercise were measured. Blood samples were collected at rest, and immediately, 10 and 30 min after each test and used to measure malondialdehyde (MDA), catalase (CAT), and superoxide dismutase (SOD). RESULTS PGE administration significantly increased exercise duration until exhaustion by 1.5 min (p<0.05). MDA was significantly elevated following both trials (p<0.01), however, it was attenuated after PGE administration (p<0.01). CAT and SOD activities following exercise were significantly elevated, but the activities following control exercise were much lower than those following PGE exercise. CONCLUSIONS These results suggest that the elevation in CAT and SOD activities as scavenger enzymes after PGE administration result in decrease of MDA level as one of PGE action mechanisms and consequently, prolong exercise duration until exhaustion. These findings support scientific claims that ginseng has ergogenic properties in facilitating recovery from exhaustive exercise.
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Chung SS, Choi HH, Kim KW, Cho YM, Lee HK, Park KS. Regulation of human resistin gene expression in cell systems: an important role of stimulatory protein 1 interaction with a common promoter polymorphic site. Diabetologia 2005; 48:1150-8. [PMID: 15864531 DOI: 10.1007/s00125-005-1762-y] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/06/2004] [Accepted: 01/20/2005] [Indexed: 12/14/2022]
Abstract
AIMS/HYPOTHESIS Resistin is an adipokine that might link obesity and insulin resistance. A common polymorphism of the human resistin gene, -420C >G, is a major determinant of plasma resistin concentrations as well as resistin mRNA expression in human adipose tissue. In this study, we investigated the regulatory mechanism by which this polymorphism affects resistin expression. METHODS Electrophoretic mobility shift assay was performed to identify the transcription factors binding to the -420G region. Transient transfection and reporter assay were used to measure promoter activities of the resistin gene. The binding ability of stimulatory protein 1 (Sp1) in response to adipocyte differentiation or high glucose concentrations was also measured. RESULTS Sp1 and stimulatory protein 3 (Sp3) specifically bound to the region around -420G of the human resistin gene. Overexpression of Sp1 increased the promoter activity regardless of -420 genotypes, while the promoter activity of the -420G construct was two-fold higher than that of the -420C construct. In contrast, overexpression of Sp3 scarcely increased the promoter activity. The binding ability of Sp1 to the -420G region was increased in response to adipocyte differentiation. Mithramycin A, an inhibitor of DNA binding of Sp1, reduced the effect of high glucose on transcription induction of the resistin gene in adipocytes. CONCLUSIONS/INTERPRETATION These results suggest that Sp1 is an important factor regulating transcription of human resistin gene. A common polymorphism of the human resistin promoter, -420C >G, is critical for the binding of Sp1 and modulates the transcriptional activity of the resistin gene by changing the binding ability of Sp1. In addition, Sp1 may be involved in the increase of resistin expression by hyperglycaemia.
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Lee YY, Lee NS, Cho YM, Moon MK, Jung HS, Park YJ, Park HJ, Youn BS, Lee HK, Park KS, Shin HD. Genetic association study of adiponectin polymorphisms with risk of Type 2 diabetes mellitus in Korean population. Diabet Med 2005; 22:569-75. [PMID: 15842511 DOI: 10.1111/j.1464-5491.2005.01460.x] [Citation(s) in RCA: 62] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
AIMS To investigate any association between Type 2 diabetes mellitus and two single nucleotide polymorphisms (SNPs) in the adiponectin gene, T45G and G276T, in the Korean population. METHODS We genotyped 427 non-diabetic controls and 493 Type 2 diabetic patients for SNPs T45G and G276T of adiponectin gene, measured plasma adiponectin concentrations, and examined clinical parameters in Koreans. RESULTS There were no statistically significant differences in allele frequencies of SNPs 45 and 276 comparing control with Type 2 diabetic subjects (T frequency 68.3% vs. 71.6%, P=0.13 for SNP45, G frequency 72.2% vs. 68.9%, P=0.12 for SNP276). The genotype distributions of these SNPs had no association with the risk of Type 2 diabetes and metabolic parameters of insulin resistance. Plasma levels of adiponectin were not statistically different according to T45G and G276T either, in both control and Type 2 diabetic subjects. CONCLUSION The T45G and G276T of the adiponectin gene may not be an important determinant of Type 2 diabetes or insulin resistance in Korean subjects.
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Saigo M, Abe K, Abe K, Aihara H, Akatsu M, Asano Y, Aulchenko V, Aushev T, Bahinipati S, Bakich AM, Ban Y, Banerjee S, Bedny I, Bitenc U, Bizjak I, Blyth S, Bondar A, Bozek A, Bracko M, Brodzicka J, Browder TE, Chao Y, Chen A, Chen KF, Chen WT, Cheon BG, Chistov R, Choi SK, Choi Y, Choi YK, Chuvikov A, Cole S, Dalseno J, Danilov M, Dash M, Dong LY, Drutskoy A, Eidelman S, Eiges V, Enari Y, Fratina S, Gabyshev N, Garmash A, Gershon T, Gokhroo G, Golob B, Haba J, Hayasaka K, Hayashii H, Hazumi M, Higuchi T, Hinz L, Hokuue T, Hoshi Y, Hou S, Hou WS, Hsiung YB, Iijima T, Imoto A, Inami K, Ishikawa A, Itoh R, Iwasaki M, Iwasaki Y, Kang JH, Kang JS, Kapusta P, Katayama N, Kawai H, Kawasaki T, Kent N, Khan HR, Kichimi H, Kim HJ, Kim SK, Kim SM, Kinoshita K, Koppenburg P, Korpar S, Krizan P, Krokovny P, Kulasiri R, Kuo CC, Kuzmin A, Kwon YJ, Leder G, Lee SE, Lesiak T, Li J, Lin SW, Liventsev D, Macnaughton J, Majumder G, Mandl F, Marlow D, Matsumoto T, Matyja A, Mikami Y, Mitaroff W, Miyake H, Mizuk R, Mohapatra D, Mori T, Nagasaka Y, Nakano E, Nakao M, Natkaniec Z, Nishida S, Nitoh O, Ogawa S, Ohshima T, Okabe T, Okuno S, Olsen SL, Ostrowicz W, Ozaki H, Pakhlov P, Palka H, Park H, Park KS, Parslow N, Peak LS, Pestotnik R, Piilonen LE, Poluektov A, Ronga FJ, Sagawa H, Sakai Y, Sato N, Schietinger T, Schneider O, Schönmeier P, Schümann J, Schwartz AJ, Semenov S, Seuster R, Sevior ME, Shibuya H, Singh JB, Somov A, Soni N, Stamen R, Stanic S, Staric M, Sumiyoshi T, Suzuki S, Suzuki SY, Tajima O, Takasaki F, Tamai K, Tamura N, Tanaka M, Teramoto Y, Tian XC, Trabelsi K, Tsukamoto T, Uehara S, Uglov T, Uno S, Ushiroda Y, Varner G, Varvell KE, Villa S, Wang CC, Wang CH, Wang MZ, Watanabe M, Watanabe Y, Yamaguchi A, Yamamoto H, Yamashita Y, Yamauchi M, Yusa Y, Zhang LM, Zhang ZP, Zhilich V, Zontar D, Zürcher D. Study of the suppressed decays B- -->[K+pi-](D)K- and B- -->[K+pi-]Dpi-. PHYSICAL REVIEW LETTERS 2005; 94:091601. [PMID: 15783952 DOI: 10.1103/physrevlett.94.091601] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/02/2004] [Indexed: 05/24/2023]
Abstract
We report a study of the suppressed decays B--->[K(+)pi(-)](D)K- and B--->[K(+)pi(-)](D)pi(-), where [K(+)pi(-)](D) indicates that the K+pi(-) pair originates from a neutral D meson. These decay modes are sensitive to the unitarity triangle angle varphi(3). We use a data sample containing 275 x 10(6) BB pairs recorded at the Upsilon(4S) resonance with the Belle detector at the KEKB asymmetric e(+)e(-) storage ring. The signal for B--->[K(+)pi(-)](D)K- is not statistically significant, and we set a limit r(B)<0.27 at 90% confidence level, where r(B) is the magnitude of the ratio of amplitudes |A(B--->D 0K-)/A(B--->D0K-)|. We observe a signal with 6.4sigma statistical significance in the related mode, B--->[K(+)pi(-)](D)pi(-).
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Chao Y, Chang P, Abe K, Abe K, Abe N, Adachi I, Aihara H, Akai K, Akatsu M, Akemoto M, Asano Y, Aso T, Aulchenko V, Aushev T, Aziz T, Bahinipati S, Bakich AM, Ban Y, Barbero M, Bay A, Bedny I, Bitenc U, Bizjak I, Blyth S, Bondar A, Bozek A, Bracko M, Brodzicka J, Browder TE, Chang MC, Chen A, Chen KF, Chen WT, Cheon BG, Chistov R, Choi SK, Choi Y, Choi YK, Chuvikov A, Cole S, Danilov M, Dash M, Dong LY, Dowd R, Dragic J, Drutskoy A, Eidelman S, Eiges V, Enari Y, Epifanov D, Everton CW, Fang F, Flanagan J, Fratina S, Fujii H, Funakoshi Y, Furukawa K, Gabyshev N, Garmash A, Gershon T, Go A, Gokhroo G, Golob B, Grosse Perdekamp M, Guler H, Guo R, Haba J, Hagner C, Handa F, Hara K, Hara T, Hastings NC, Hasuko K, Hayasaka K, Hayashii H, Hazumi M, Heenan EM, Higuchi I, Higuchi T, Hinz L, Hojo T, Hokuue T, Hoshi Y, Hoshina K, Hou S, Hou WS, Hsiung YB, Huang HC, Igaki T, Igarashi Y, Iijima T, Ikeda H, Imoto A, Inami K, Ishikawa A, Ishino H, Itoh K, Itoh R, Iwamoto M, Iwasaki M, Iwasaki Y, Kagan R, Kakuno H, Kamitani T, Kang JH, Kang JS, Kapusta P, Kataoka SU, Katayama N, Kawai H, Kawai H, Kawakami Y, Kawamura N, Kawasaki T, Kent N, Khan HR, Kibayashi A, Kichimi H, Kikuchi M, Kikutani E, Kim HJ, Kim HO, Kim H, Kim JH, Kim SK, Kim TH, Kinoshita K, Kobayashi S, Koiso H, Koppenburg P, Korpar S, Krizan P, Krokovny P, Kubo T, Kulasiri R, Kumar S, Kuo CC, Kurashiro H, Kurihara E, Kusaka A, Kuzmin A, Kwon YJ, Lange JS, Leder G, Lee SE, Lee SH, Lee YJ, Lesiak T, Li J, Limosani A, Lin SW, Liventsev D, MacNaughton J, Majumder G, Mandl F, Marlow D, Masuzawa M, Matsuishi T, Matsumoto H, Matsumoto S, Matsumoto T, Matyja A, Michizono S, Mikami Y, Mimashi T, Mitaroff W, Miyabayashi K, Miyabayashi Y, Miyake H, Miyata H, Mizuk R, Mohapatra D, Moloney GR, Moorhead GF, Mori T, Mueller J, Murakami A, Nagamine T, Nagasaka Y, Nakadaira T, Nakamura I, Nakamura TT, Nakano E, Nakao M, Nakayama H, Nakazawa H, Natkaniec Z, Neichi K, Nishida S, Nitoh O, Noguchi S, Nozaki T, Ogawa A, Ogawa S, Ogawa Y, Ohmi K, Ohnishi Y, Ohshima T, Ohuchi N, Oide K, Okabe T, Okuno S, Olsen SL, Onuki Y, Ostrowicz W, Ozaki H, Pakhlov P, Palka H, Park CW, Park H, Park KS, Parslow N, Peak LS, Pernicka M, Perroud JP, Peters M, Piilonen LE, Poluektov A, Ronga FJ, Root N, Rozanska M, Sagawa H, Saigo M, Saitoh S, Sakai Y, Sakamoto H, Sakaue H, Sarangi TR, Satapathy M, Sato N, Schietinger T, Schneider O, Schümann J, Schwanda C, Schwartz AJ, Seki T, Semenov S, Senyo K, Settai Y, Seuster R, Sevior ME, Shibata T, Shibuya H, Shidara T, Shwartz B, Sidorov V, Siegle V, Singh JB, Somov A, Soni N, Stamen R, Stanic S, Staric M, Sugahara R, Sugi A, Sugimura T, Sugiyama A, Sumisawa K, Sumiyoshi T, Suzuki S, Suzuki SY, Swain SK, Tajima O, Takasaki F, Tamai K, Tamura N, Tanabe K, Tanaka M, Tawada M, Taylor GN, Teramoto Y, Tian XC, Tokuda S, Tovey SN, Trabelsi K, Tsuboyama T, Tsukamoto T, Uchida K, Uehara S, Uglov T, Ueno K, Unno Y, Uno S, Ushiroda Y, Varner G, Varvell KE, Villa S, Wang CC, Wang CH, Wang JG, Wang MZ, Watanabe M, Watanabe Y, Widhalm L, Xie QL, Yabsley BD, Yamaguchi A, Yamamoto H, Yamamoto N, Yamamoto S, Yamanaka T, Yamashita Y, Yamauchi M, Yang H, Yeh P, Ying J, Yoshida K, Yoshida M, Yuan Y, Yusa Y, Yuta H, Zang SL, Zhang CC, Zhang J, Zhang LM, Zhang ZP, Zheng Y, Zhilich V, Ziegler T, Zontar D, Zürcher D. Evidence for direct CP violation in B0-->K+pi- decays. PHYSICAL REVIEW LETTERS 2004; 93:191802. [PMID: 15600826 DOI: 10.1103/physrevlett.93.191802] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/20/2004] [Indexed: 05/24/2023]
Abstract
We report evidence for direct CP violation in the decay B0-->K+pi(-) with 253 fb(-1) of data collected with the Belle detector at the KEKB e(+)e(-) collider. Using 275x10(6) BB pairs we observe a B-->K+/-pi(-/+) signal with 2140+/-53 events. The measured CP violating asymmetry is A(CP)(K+pi(-))=-0.101+/-0.025(stat)+/-0.005(syst), corresponding to a significance of 3.9sigma including systematics. We also search for CP violation in the decays B+-->K+pi(0) and B+-->pi(+)pi(0). The measured CP violating asymmetries are A(CP)(K+pi(0))=0.04+/-0.05(stat)+/-0.02(syst) and A(CP)(pi(+)pi(0))=-0.02+/-0.10(stat)+/-0.01(syst), corresponding to the intervals -0.05<A(CP)(K+pi(0))<0.13 and -0.18<A(CP)(pi(+)pi(0))<0.14 at 90% confidence level.
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Derenko MV, Lunkina AV, Maliarchuk BA, Zakharov IA, Tsedev T, Park KS, Cho YM, Lee NK, Chu CH. [Restriction polymorphism of mitochondrial DNA in Koreans and Mongolians]. GENETIKA 2004; 40:1562-1570. [PMID: 15612576] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Using the data on mitochondrial DNA (mtDNA) restriction polymorphism, the gene pools of Koreans (N = 164) and Mongolians (N = 48) were characterized. It was demonstrated that the gene pools were represented by the common set of mtDNA haplogroups of East Asian origin (M*, M7, M8a, M10, C, D4, G*, G2, A, B*, B5, F1, and N*). In addition to this set, mtDNA haplogroups D5 and Y were identified in Koreans while Mongolians possessed haplogroup Z. Only in Mongolians, a European component with the frequency of 10.4% and represented by the mtDNA types belonging to haplogroups K, U4, and N1, was identified. Phylogenetic and statistical analyses of the data on mtDNA variation in the populations of South Siberia, Central, and East Asia suggested the existence of interpopulation differentiation within these regions, the main role in which was played by the geographical and linguistic factors. Analysis of the pairwise F(ST) distances demonstrated close genetic similarity of Koreans to Northern Chinese, which in turn, were clearly different from Southern Chinese populations. Mongolians occupied an intermediate position between the ethnic groups of South Siberia and Central/East Asia.
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Hong SJ, Lee MS, Sohn MH, Shim JY, Han YS, Park KS, Ahn YM, Son BK, Lee HB. Self-reported prevalence and risk factors of asthma among Korean adolescents: 5-year follow-up study, 1995-2000. Clin Exp Allergy 2004; 34:1556-62. [PMID: 15479270 DOI: 10.1111/j.1365-2222.2004.02084.x] [Citation(s) in RCA: 104] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
OBJECTIVES The International Study of Asthma and Allergies in Childhood (ISAAC) questionnaires have shown that the prevalence of childhood asthma is increasing worldwide. Although Asian countries used to have lower prevalence rates of allergic disease than Western countries, this prevalence is increasing in several Asian countries. To determine whether the prevalence of childhood asthma is changing in Korean adolescents, we compared findings from nationwide cross-sectional surveys in 1995 and 2000 on populations of middle-school children using the Korean version of the ISAAC questionnaire. METHODS We developed Korean versions of the ISAAC written (WQ) and video (AVQ) questionnaires for allergic diseases. In 1995, the enrolled population consisted of 15,481 children, ages 12-15, and encompassing all three grades in middle school, selected from 34 schools across the nation; the response rate was 97.3%. In 2000, 15,894 children were selected from 31 of the same schools, and the response rate was 96.4%. The SAS system version 8.0 was utilized for all statistical analyses. RESULTS The WQ showed that the lifetime and 12-month prevalence of wheeze did not change from 1995 to 2000. While the 12-month prevalence rates of sleep disturbed by wheezing and night cough increased, the rates of severe attack of wheezing and exercise-induced wheeze did not change, over this period of time. The lifetime prevalence of asthma diagnosis, however, increased significantly, from 2.7% in 1995 to 5.3% in 2000, as did the 12-month prevalence of asthma treatment, from 1.0% in 1995 to 1.9% in 2000. The AVQ also showed increases in the lifetime and 12-month prevalence rates of wheeze at rest, exercise-induced wheeze, nocturnal wheeze, nocturnal cough, and severe wheeze over this period of time. These were especially because of significant increases in the Provincial cities of Korea. Interestingly, the 12-month prevalence of wheeze was consistently high in Cheju with low air pollution indices, whereas this rate was low in Ulsan and Ansan with very high air pollution indices. Risk factor analysis showed that body mass index (BMI), passive smoking, and living with a dog or cat, but not air pollution, were associated with higher risk of wheeze. CONCLUSIONS In the 5-year period from 1995 to 2000, the prevalence of asthma symptoms has increased in Korean adolescents, much of it because of increases in Provincial Centers. BMI, passive smoking, and living with a dog or cat are important risk factors. Environmental factors other than air pollution may be associated with increases in asthma, especially in Provincial Centers.
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