76
|
Han MS, Kang PW, Choi DH, Lee YH, Choi SK, Yoon SR, Shin DJ, Kim JM, Jin HJ, Kwak KD, Kim W. Korean population genetic data for eleven STR loci. Forensic Sci Int 2001; 123:230-1. [PMID: 11728753 DOI: 10.1016/s0379-0738(01)00531-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Allele frequency and forensic parameters for eleven STR loci were surveyed in a random sample from the Korean population.
Collapse
|
77
|
Cha YS, Choi SK, Suh H, Lee SN, Cho D, Li K. Effects of carnitine coingested caffeine on carnitine metabolism and endurance capacity in athletes. J Nutr Sci Vitaminol (Tokyo) 2001; 47:378-84. [PMID: 11922111 DOI: 10.3177/jnsv.47.378] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
The purpose of this study was to examine whether caffeine (CAF), carnitine (CAR), or CAF+CAR mixture administration affects exercise endurance time via carnitine metabolism. Water (CON), CAF, CAR, or CAF+CAR mixture was administered to five male rugby athletes participating in this study by a randomized double-blind fashion who were made to ride a cycle ergometer for exercise. The CAF effect on exercise endurance time was small, but the CAR trial significantly increased the exercise endurance time compared with CON trial; a further CAF+CAR mixture trial had greater effects on the exercise endurance time than those of a CON, CAF, or CAR trial. A CAR or CAF+CAR mixed trial increased urinary nonesterified carnitine (NEC) and total carnitine (TCAR), but no changes were observed in acid-soluble acylcarnitine (ASAC) and acid-insoluble acylcarnitine (AIAC) excretion. A CAR or CAF+CAR mixed trial resulted in higher levels of plasma NEC, ASAC, and TCAR fractions than the CON and CAF trials did on exhaustion time. Total cholesterol, triglyceride, and free fatty acid in blood were significantly increased at exhaustion time, but they were not affected in the CAF or the CAR trial. These results suggest that carnitine ingestion could promote fat oxidation, resulting in higher endurance performance in athletes, and especially these ergogenic effects of carnitine coingested with caffeine may be greater than those of carnitine alone.
Collapse
|
78
|
Abe K, Abe K, Adachi I, Ahn BS, Aihara H, Asano Y, Aso T, Aulchenko V, Aushev T, Bakich AM, Banas E, Bartel W, Behari S, Behera PK, Beiline D, Bondar A, Bozek A, Browder TE, Casey BC, Chang P, Chao Y, Cheon BG, Choi SK, Choi Y, Dragic J, Drutskoy A, Eidelman S, Enari Y, Fang F, Fujii H, Fukunaga C, Fukushima M, Garmash A, Gordon A, Gotow K, Guo R, Haba J, Hamasaki H, Hanagaki K, Hara K, Hara T, Hastings NC, Hayashii H, Hazumi M, Heenan EM, Higasino Y, Higuchi I, Higuchi T, Hirano H, Hojo T, Hoshi Y, Hou SR, Hou WS, Hsu SC, Huang HC, Igarashi Y, Iijima T, Ikeda H, Inami K, Ishikawa A, Ishino H, Itoh R, Iwai G, Iwasaki H, Iwasaki Y, Jackson DJ, Jalocha P, Jang HK, Jones M, Kagan R, Kakuno H, Kaneko J, Kang JH, Kang JS, Kapusta P, Katayama N, Kawai H, Kawai H, Kawamura N, Kawasaki T, Kichimi H, Kim DW, Kim H, Kim HJ, Kim H, Kim SK, Kim TH, Kinoshita K, Kobayashi S, Koishi S, Krokovny P, Kulasiri R, Kumar S, Kuzmin A, Kwon YJ, Lange JS, Lee SH, Liventsev D, Lu RS, Marlow D, Matsubara T, Matsui S, Matsumoto S, Matsumoto T, Mikami Y, Miyabayashi K, Miyake H, Miyata H, Moloney GR, Moorhead GF, Mori S, Mori T, Murakami A, Nagamine T, Nagasaka Y, Nagashima Y, Nakadaira T, Nakano E, Nakao M, Nam JW, Narita S, Natkaniec Z, Neichi K, Nishida S, Nitoh O, Noguchi S, Nozaki T, Ogawa S, Ohshima T, Okabe T, Okuno S, Olsen SL, Ozaki H, Pakhlov P, Palka H, Park CS, Park CW, Park H, Peak LS, Peters M, Piilonen LE, Prebys E, Rodriguez JL, Root N, Rozanska M, Rybicki K, Sagawa H, Sakai Y, Sakamoto H, Satapathy M, Satpathy A, Schrenk S, Semenov S, Senyo K, Sevior ME, Shibuya H, Shwartz B, Stanic S, Sugi A, Sugiyama A, Sumisawa K, Sumiyoshi T, Suzuki JI, Suzuki K, Suzuki S, Suzuki SY, Swain SK, Takahashi T, Takasaki F, Takita M, Tamai K, Tamura N, Tanaka J, Tanaka M, Tanaka Y, Taylor GN, Teramoto Y, Tomoto M, Tomura T, Tovey SN, Trabelsi K, Tsuboyama T, Tsukamoto T, Uehara S, Ueno K, Unno Y, Uno S, Ushiroda Y, Vahsen SE, Varvell KE, Wang CH, Wang JG, Wang MZ, Watanabe Y, Won E, Yabsley BD, Yamada Y, Yamaga M, Yamaguchi A, Yamamoto H, Yamashita Y, Yamauchi M, Yanaka S, Yoshida K, Yusa Y, Yuta H, Zhang CC, Zhang J, Zhao HW, Zheng Y, Zhilich V, Zontar D. Observation of B --> J/psi K(1)(1270). PHYSICAL REVIEW LETTERS 2001; 87:161601. [PMID: 11690197 DOI: 10.1103/physrevlett.87.161601] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/09/2001] [Indexed: 05/23/2023]
Abstract
We report the first observation of the exclusive decay process B-->J/psi K(1)(1270) using a sample of 11.2M BB macro meson pairs collected in the Belle detector at the KEKB asymmetric energy e(+)e(-) collider. We measure branching fractions of B[B(0)-->J/psi K(0)(1)(1270)] = (1.30+/-0.34+/-0.32) x 10(-3) and B[B(+)-->J/psi K(+)(1)(1270)] = (1.80+/-0.34+/-0.39) x 10(-3), where the first error is statistical and the second is systematic. These modes constitute approximately 15% of the total number of B-->J/psi X decays. No evidence is seen for B-->J/psi K(1)(1400) and we set an upper limit for this branching fraction.
Collapse
|
79
|
Shin DJ, Jin HJ, Kwak KD, Choi JW, Han MS, Kang PW, Choi SK, Kim W. Y-chromosome multiplexes and their potential for the DNA profiling of Koreans. Int J Legal Med 2001; 115:109-17. [PMID: 11724428 DOI: 10.1007/s004140100248] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
We have developed four multiplex genotyping systems (GeneKin Y-STR multiplexes) using silver staining with allelic ladders for ten Y-chromosome STR markers (DYS19, DYS385, DYS388, DYS389I/II, DYS390, DYS391, DYS392, DYS393 and DXYS156Y), with a view towards the application of rapid and simple genotyping assay methods for DNA profiling. The GeneKin Y-STR multiplexes developed have followed the published nomenclature and ISFG guidelines for STR analysis. Allele and haplotype frequencies at these Y-STRs loci were analysed by PCR amplification using the GeneKin Y-STR multiplexes, followed by denaturing polyacrylamide gel electrophoresis in 316 unrelated males in the Korean population. A total of 295 different haplotypes were found, 279 of them being unique. Gene diversity ranged from 0.4026 at DYS391 to 0.9606 at DYS385. The haplotype diversity value (which is the same as the discrimination index) calculated from all ten loci combined was 0.9995, which is informative. Our results revealed that a set of ten Y-STRs can discriminate between most of the male individuals in the Korean population (discrimination capacity: 93.35%). The Y-STR multiplexes thus provide useful information for forensic analysis and paternity tests and can also be of great benefit for providing information not normally available from autosomal DNA systems.
Collapse
|
80
|
Abe K, Abe K, Adachi I, Ahn BS, Aihara H, Akatsu M, Alimonti G, Asano Y, Aso T, Aulchenko V, Aushev T, Bakich AM, Bartel W, Behari S, Behera PK, Beiline D, Bondar A, Bozek A, Browder TE, Casey BC, Chang P, Chao Y, Cheon BG, Choi SK, Choi Y, Eidelman S, Enari Y, Enomoto R, Fang F, Fujii H, Fukunaga C, Fukushima M, Garmash A, Gordon A, Gotow K, Guo R, Haba J, Hamasaki H, Hanagaki K, Handa F, Hara K, Hara T, Hastings NC, Hayashii H, Hazumi M, Heenan EM, Higuchi I, Higuchi T, Hirano H, Hojo T, Hoshi Y, Hou WS, Hsu SC, Huang HC, Igarashi Y, Iijima T, Ikeda H, Inami K, Ishikawa A, Ishino H, Itoh R, Iwai G, Iwasaki H, Iwasaki Y, Jackson DJ, Jalocha P, Jang HK, Jones M, Kagan R, Kakuno H, Kaneko J, Kang JH, Kang JS, Katayama N, Kawai H, Kawai H, Kawasaki T, Kichimi H, Kim DW, Kim H, Kim HJ, Kim H, Kim SK, Kinoshita K, Kobayashi S, Krokovny P, Kulasiri R, Kumar S, Kuzmin A, Kwon YJ, Lange JS, Lee MH, Lee SH, Liventsev D, Lu RS, Marlow D, Matsubara T, Matsumoto S, Matsumoto T, Miyabayashi K, Miyake H, Miyata H, Moloney GR, Mori S, Mori T, Murakami A, Nagamine T, Nagasaka Y, Nakadaira T, Nakano E, Nakao M, Nam JW, Narita S, Neichi K, Nishida S, Nitoh O, Noguchi S, Nozaki T, Ogawa S, Ohshima T, Okabe T, Okuno S, Olsen SL, Ozaki H, Pakhlov P, Palka H, Park CS, Park CW, Park H, Peak LS, Peters M, Piilonen LE, Rodriguez JL, Root N, Rozanska M, Rybicki K, Ryuko J, Sagawa H, Sakai Y, Sakamoto H, Satapathy M, Satpathy A, Schrenk S, Semenov S, Senyo K, Sevior ME, Shibuya H, Shwartz B, Sidorov V, Singh JB, Stanic S, Sugi A, Sugiyama A, Sumisawa K, Sumiyoshi T, Suzuki JI, Suzuki K, Suzuki S, Suzuki SY, Swain SK, Takahashi T, Takasaki F, Takita M, Tamai K, Tamura N, Tanaka J, Tanaka M, Taylor GN, Teramoto Y, Tomoto M, Tomura T, Tovey SN, Trabelsi K, Tsuboyama T, Tsukamoto T, Uehara S, Ueno K, Unno Y, Uno S, Ushiroda Y, Usov Y, Vahsen SE, Varner G, Varvell KE, Wang CC, Wang CH, Wang JG, Wang MZ, Watanabe Y, Won E, Yabsley BD, Yamada Y, Yamaga M, Yamaguchi A, Yamamoto H, Yamashita Y, Yamauchi M, Yanaka S, Yokoyama M, Yoshida K, Yusa Y, Yuta H, Zhang CC, Zhang J, Zhao HW, Zheng Y, Zhilich V, Zontar D. Observation of Cabibbo suppressed B --> D(*)K- decays at Belle. PHYSICAL REVIEW LETTERS 2001; 87:111801. [PMID: 11531511 DOI: 10.1103/physrevlett.87.111801] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/21/2001] [Indexed: 05/23/2023]
Abstract
We report observations of the Cabibbo suppressed decays B-->D((*))K- using a 10.4 fb(-1) data sample accumulated at the Upsilon(4S) resonance with the Belle detector at the KEKB e(+)e(-) storage ring. We find that the ratios of Cabibbo suppressed to Cabibbo favored branching fractions are B(B--->D0K-)/B(B--->D0pi(-)) = 0.079+/-0.009+/-0.006, B(B(0)-->D+K-)/B(B(0)-->D+pi(-)) = 0.068+/-0.015+/-0.007, B(B--->D(*0)K-)/B(B--->D(*0)pi(-)) = 0.078+/-0.019+/-0.009, and B(B(0)-->D(*+)K-)/B(B(0)-->D(*+)pi(-)) = 0.074+/-0.015+/-0.006. These are the first observations of the B-->D+K-, D(*0)K-, and D(*+)K- decay processes.
Collapse
|
81
|
Abe K, Abe K, Adachi I, Ahn BS, Aihara H, Akatsu M, Alimonti G, Asano Y, Aso T, Aulchenko V, Aushev T, Bakich AM, Bartel W, Behari S, Behera PK, Beiline D, Bondar A, Bozek A, Browder TE, Casey BC, Chang P, Chao Y, Chen KF, Cheon BG, Choi SK, Choi Y, Eidelman S, Enari Y, Enomoto R, Fang F, Fujii H, Fukushima M, Garmash A, Gordon A, Gotow K, Guo R, Haba J, Hamasaki H, Hanagaki K, Handa F, Hara K, Hara T, Hastings NC, Hayashii H, Hazumi M, Heenan EM, Higuchi I, Higuchi T, Hirano H, Hojo T, Hoshi Y, Hou WS, Hsu SC, Huang HC, Igarashi Y, Iijima T, Ikeda H, Inami K, Ishikawa A, Ishino H, Itoh R, Iwai G, Iwasaki H, Iwasaki Y, Jackson DJ, Jalocha P, Jang HK, Jones M, Kakuno H, Kaneko J, Kang JH, Kang JS, Katayama N, Kawai H, Kawai H, Kawasaki T, Kichimi H, Kim DW, Kim H, Kim HJ, Kim H, Kim SK, Kinoshita K, Kobayashi S, Krokovny P, Kulasiri R, Kumar S, Kuzmin A, Kwon YJ, Lange JS, Lee MH, Lee SH, Liventsev D, Lu RS, Marlow D, Matsubara T, Matsumoto S, Matsumoto T, Mikami Y, Miyabayashi K, Miyake H, Miyata H, Moloney GR, Mori S, Mori T, Murakami A, Nagamine T, Nagasaka Y, Nakadaira T, Nakano E, Nakao M, Nam JW, Narita S, Nishida S, Nitoh O, Noguchi S, Nozaki T, Ogawa S, Ohshima T, Okabe T, Okuno S, Olsen SL, Ozaki H, Pakhlov P, Palka H, Park CS, Park CW, Park H, Peak LS, Peters M, Piilonen LE, Rodriguez JL, Root N, Rozanska M, Rybicki K, Ryuko J, Sagawa H, Sakai Y, Sakamoto H, Satapathy M, Satpathy A, Schrenk S, Semenov S, Senyo K, Sevior ME, Shibuya H, Shwartz B, Sidorov V, Singh JB, Stanic S, Sugi A, Sugiyama A, Sumisawa K, Sumiyoshi T, Suzuki JI, Suzuki K, Suzuki S, Suzuki SY, Swain SK, Tajima H, Takahashi T, Takasaki F, Takita M, Tamai K, Tamura N, Tanaka J, Tanaka M, Taylor GN, Teramoto Y, Tomoto M, Tomura T, Tovey SN, Trabelsi K, Tsuboyama T, Tsukamoto T, Uehara S, Ueno K, Unno Y, Uno S, Ushiroda Y, Usov Y, Vahsen SE, Varner G, Varvell KE, Wang CC, Wang CH, Wang JG, Wang MZ, Watanabe Y, Won E, Yabsley BD, Yamada Y, Yamaga M, Yamaguchi A, Yamamoto H, Yamashita Y, Yamauchi M, Yanaka S, Yokoyama M, Yusa Y, Yuta H, Zhang CC, Zhang J, Zhao HW, Zheng Y, Zhilich V, Zontar D. Measurement of branching fractions for B --> pipi, Kpi, and KK decays. PHYSICAL REVIEW LETTERS 2001; 87:101801. [PMID: 11531472 DOI: 10.1103/physrevlett.87.101801] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/17/2001] [Indexed: 05/23/2023]
|
82
|
Abe K, Abe K, Abe R, Adachi I, Ahn BS, Aihara H, Akatsu M, Alimonti G, Asai K, Asai M, Asano Y, Aso T, Aulchenko V, Aushev T, Bakich AM, Banas E, Behari S, Behera PK, Beiline D, Bondar A, Bozek A, Browder TE, Casey BC, Chang P, Chao Y, Chen KF, Cheon BG, Chistov R, Choi SK, Choi Y, Dong LY, Dragic J, Drutskoy A, Eidelman S, Eiges V, Enari Y, Enomoto R, Everton CW, Fang F, Fujii H, Fukunaga C, Fukushima M, Gabyshev N, Garmash A, Gershon TJ, Gordon A, Gotow K, Guler H, Guo R, Haba J, Hamasaki H, Hanagaki K, Handa F, Hara K, Hara T, Hastings NC, Hayashii H, Hazumi M, Heenan EM, Higasino Y, Higuchi I, Higuchi T, Hirai T, Hirano H, Hojo T, Hokuue T, Hoshi Y, Hoshina K, Hou SR, Hou WS, Hsu SC, Huang HC, Igarashi Y, Iijima T, Ikeda H, Ikeda K, Inami K, Ishikawa A, Ishino H, Itoh R, Iwai G, Iwasaki H, Iwasaki Y, Jackson DJ, Jalocha P, Jang HK, Jones M, Kagan R, Kakuno H, Kaneko J, Kang JH, Kang JS, Kapusta P, Katayama N, Kawai H, Kawai H, Kawakami Y, Kawamura N, Kawasaki T, Kichimi H, Kim DW, Kim H, Kim HJ, Kim H, Kim SK, Kim TH, Kinoshita K, Kobayashi S, Koishi S, Konishi H, Korotushenko K, Krokovny P, Kulasiri R, Kumar S, Kuniya T, Kurihara E, Kuzmin A, Kwon YJ, Lange JS, Leder G, Lee MH, Lee SH, Leonidopoulos C, Lin YS, Liventsev D, Lu RS, MacNaughton J, Marlow D, Matsubara T, Matsui S, Matsumoto S, Matsumoto T, Mikami Y, Misono K, Miyabayashi K, Miyake H, Miyata H, Moffitt LC, Moloney GR, Moorhead GF, Mori S, Mori T, Murakami A, Nagamine T, Nagasaka Y, Nagashima Y, Nakadaira T, Nakamura T, Nakano E, Nakao M, Nakazawa H, Nam JW, Natkaniec Z, Neichi K, Nishida S, Nitoh O, Noguchi S, Nozaki T, Ogawa S, Ohshima T, Ohshima Y, Okabe T, Okazaki T, Okuno S, Olsen SL, Ozaki H, Pakhlov P, Palka H, Park CS, Park CW, Park H, Peak LS, Peters M, Piilonen LE, Prebys E, Rodriguez JL, Root N, Rozanska M, Rybicki K, Ryuko J, Sagawa H, Sakai Y, Sakamoto H, Satapathy M, Satpathy A, Schrenk S, Semenov S, Senyo K, Settai Y, Sevior ME, Shibuya H, Shwartz B, Sidorov A, Stanic S, Sugi A, Sugiyama A, Sumisawa K, Sumiyoshi T, Suzuki J, Suzuki K, Suzuki S, Suzuki SY, Swain SK, Tajima H, Takahashi T, Takasaki F, Takita M, Tamai K, Tamura N, Tanaka J, Tanaka M, Taylor GN, Teramoto Y, Tomoto M, Tomura T, Tovey SN, Trabelsi K, Tsuboyama T, Tsukamoto T, Uehara S, Ueno K, Unno Y, Uno S, Ushiroda Y, Vahsen SE, Varvell KE, Wang CC, Wang CH, Wang JG, Wang MZ, Watanabe Y, Won E, Yabsley BD, Yamada Y, Yamaga M, Yamaguchi A, Yamamoto H, Yamanaka T, Yamashita Y, Yamauchi M, Yanaka S, Yashima J, Yokoyama M, Yoshida K, Yusa Y, Yuta H, Zhang CC, Zhang J, Zhao HW, Zheng Y, Zhilich V, Zontar D. Observation of large CP violation in the neutral B meson system. PHYSICAL REVIEW LETTERS 2001; 87:091802. [PMID: 11531561 DOI: 10.1103/physrevlett.87.091802] [Citation(s) in RCA: 86] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/18/2001] [Indexed: 05/23/2023]
Abstract
We present a measurement of the standard model CP violation parameter sin2 phi(1) based on a 29.1 fb(-1) data sample collected at the Upsilon(4S) resonance with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider. One neutral B meson is fully reconstructed as a J/psi K(S), psi(2S)K(S), chi(c1)K(S), eta(c)K(S), J/psi K(L), or J/psi K(*0) decay and the flavor of the accompanying B meson is identified from its decay products. From the asymmetry in the distribution of the time intervals between the two B meson decay points, we determine sin2 phi(1) = 0.99+/-0.14(stat)+/-0.06(syst). We conclude that we have observed CP violation in the neutral B meson system.
Collapse
|
83
|
Joo YE, Kim HS, Choi SK, Rew JS, Kim SJ, Park CS, Cho CK, Kim HJ. Synchronous pancreatic and colon primary cancers. J Clin Gastroenterol 2001; 33:91-2. [PMID: 11418808 DOI: 10.1097/00004836-200107000-00029] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
|
84
|
Kim YS, Do SH, Hong CH, Kim MJ, Choi SK, Han SW. Does every patient with ureteropelvic junction obstruction need voiding cystourethrography? J Urol 2001; 165:2305-7. [PMID: 11371967 DOI: 10.1097/00005392-200106001-00022] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
PURPOSE Voiding cystourethrography is routinely recommended to detect vesicoureteral reflux in children with ureteropelvic junction obstruction. Vesicouretral reflux coexisting with primary ureteropelvic junction obstruction is usually of low grade and resolves spontaneously after pyeloplasty, whereas pseudo ureteropelvic junction obstruction and obstruction secondary to high grade reflux usually present with a dilated ureter that is easily detected on real-time ultrasonography. We assessed the role of voiding cystourethrography in children with ureteropelvic junction obstruction by retrospectively evaluating the incidence and natural history of coexisting vesicourethral reflux. MATERIALS AND METHODS We reviewed the records of 106 children younger than 15 years who underwent pyeloplasty for ureteropelvic junction obstruction at our hospital between January 1990 and December 1998. A patient who had initially undergone antireflux surgery later underwent pyeloplasty for newly developed secondary obstruction was not included in the analysis. The diagnosis of ureteropelvic junction obstruction was based on ultrasonography and diuretic renography. Preoperative voiding cystourethrography was performed in all patients to detect vesicourethral reflux. We categorized reflux as low grade if the ureters were not dilated and as high grade if the ureters were dilated and tortuous. RESULTS There were 89 boys and 17 girls who underwent 115 pyeloplasties, including 9 who underwent bilateral pyeloplasty. Mean patient age at surgery was 27.4 months (63 infants, 6 between 1 and 2 years old, and 37 older than 2 years). Of these 106 patients 85 had unilateral (left side 64, right side 21) and 21 had bilateral ureteropelvic junction obstruction. Vesicourethral reflux was documented in 19 ureters of 12 children. Of the 85 cases of unilateral ureteropelvic junction obstructions 10 had vesicourethral reflux, which was bilateral 6, ipsilateral in 2 and contralateral in 2. Of the 21 cases of bilateral obstructions 2 had reflux, which was bilateral in 1 and was unilateral in 1. Reflux was low grade reflux in 6 and high grade in 6 cases. All low grade reflux disappeared spontaneously at an average period of 4.2 months (range 2 to 10) after pyeloplasty. All 6 patients with high grade reflux subsequently underwent antireflux surgery because of breakthrough urinary tract infection in 2 and persistent in 4 at an average of 36 months (range 3 to 112) after pyeloplasty. All high grade reflux coexisting with ureteropelvic junction obstruction was easily detected on real-time ultrasonography. CONCLUSIONS Low grade reflux coexisting with ureteropelvic junction obstruction spontaneously disappeared after pyeloplasty, and all high grade reflux coexisting with obstruction was easily detected on ultrasonography using real-time mode. Therefore, we believe that indication for voiding cystourethrography in children with ureteropelvic junction obstruction should be limited to those with dilated ureters on ultrasonography.
Collapse
|
85
|
Cho YU, Kim JY, Choi SK, Hur YS, Lee KY, Kim SJ, Ahn SI, Hong KC, Woo ZH, Han JY, Shin SH. A case of hemorrhagic gallbladder paraganglioma causing acute cholecystitis. Yonsei Med J 2001; 42:352-6. [PMID: 11456404 DOI: 10.3349/ymj.2001.42.3.352] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
Abstract
Gallbladder paraganglioma is a very rare tumor and so far only a few cases have been reported. Most of these were asymptomatic and were found incidentally during operation. Recently, we experienced a gallbladder paraganglioma that gave rise to hemorrhage, which in turn caused acute cholecystitis. Our case involved a 45 year-old female patient complaining of an intermittent right upper abdominal pain. After a preoperative evaluation, cholecystectomy and lymphadenectomy were performed under the impression of gallbladder cancer with acute cholecystitis. Postoperative pathologic examination revealed a hemorrhagic gallbladder paraganglioma accompanied by acute cholecystitis. Immunohistochemical staining of the chief cells for neuron specific enolase, chromogranin and synaptophysin were positive. Sustentacular cells also stained positively for S100 protein.
Collapse
|
86
|
Kim YS, Do SH, Hong CH, Kim MJ, Choi SK, Han SW. Does every patient with ureteropelvic junction obstruction need voiding cystourethrography? J Urol 2001; 165:2305-7. [PMID: 11371967 DOI: 10.1016/s0022-5347(05)66190-3] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
PURPOSE Voiding cystourethrography is routinely recommended to detect vesicoureteral reflux in children with ureteropelvic junction obstruction. Vesicouretral reflux coexisting with primary ureteropelvic junction obstruction is usually of low grade and resolves spontaneously after pyeloplasty, whereas pseudo ureteropelvic junction obstruction and obstruction secondary to high grade reflux usually present with a dilated ureter that is easily detected on real-time ultrasonography. We assessed the role of voiding cystourethrography in children with ureteropelvic junction obstruction by retrospectively evaluating the incidence and natural history of coexisting vesicourethral reflux. MATERIALS AND METHODS We reviewed the records of 106 children younger than 15 years who underwent pyeloplasty for ureteropelvic junction obstruction at our hospital between January 1990 and December 1998. A patient who had initially undergone antireflux surgery later underwent pyeloplasty for newly developed secondary obstruction was not included in the analysis. The diagnosis of ureteropelvic junction obstruction was based on ultrasonography and diuretic renography. Preoperative voiding cystourethrography was performed in all patients to detect vesicourethral reflux. We categorized reflux as low grade if the ureters were not dilated and as high grade if the ureters were dilated and tortuous. RESULTS There were 89 boys and 17 girls who underwent 115 pyeloplasties, including 9 who underwent bilateral pyeloplasty. Mean patient age at surgery was 27.4 months (63 infants, 6 between 1 and 2 years old, and 37 older than 2 years). Of these 106 patients 85 had unilateral (left side 64, right side 21) and 21 had bilateral ureteropelvic junction obstruction. Vesicourethral reflux was documented in 19 ureters of 12 children. Of the 85 cases of unilateral ureteropelvic junction obstructions 10 had vesicourethral reflux, which was bilateral 6, ipsilateral in 2 and contralateral in 2. Of the 21 cases of bilateral obstructions 2 had reflux, which was bilateral in 1 and was unilateral in 1. Reflux was low grade reflux in 6 and high grade in 6 cases. All low grade reflux disappeared spontaneously at an average period of 4.2 months (range 2 to 10) after pyeloplasty. All 6 patients with high grade reflux subsequently underwent antireflux surgery because of breakthrough urinary tract infection in 2 and persistent in 4 at an average of 36 months (range 3 to 112) after pyeloplasty. All high grade reflux coexisting with ureteropelvic junction obstruction was easily detected on real-time ultrasonography. CONCLUSIONS Low grade reflux coexisting with ureteropelvic junction obstruction spontaneously disappeared after pyeloplasty, and all high grade reflux coexisting with obstruction was easily detected on ultrasonography using real-time mode. Therefore, we believe that indication for voiding cystourethrography in children with ureteropelvic junction obstruction should be limited to those with dilated ureters on ultrasonography.
Collapse
|
87
|
Pathak S, Choi SK, Arnheim N, Thompson ME. Hydroxylated quantum dots as luminescent probes for in situ hybridization. J Am Chem Soc 2001; 123:4103-4. [PMID: 11457171 DOI: 10.1021/ja0058334] [Citation(s) in RCA: 522] [Impact Index Per Article: 22.7] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
88
|
Abe K, Abe K, Adachi I, Ahn BS, Aihara H, Akatsu M, Alimonti G, Aoki K, Asai K, Asai M, Asano Y, Aso T, Aulchenko V, Aushev T, Bakich AM, Banas E, Behari S, Behera PK, Beiline D, Bondar A, Bozek A, Browder TE, Casey BC, Chang P, Chao Y, Cheon BG, Choi SK, Choi Y, Doi Y, Dragic J, Eidelman S, Enari Y, Enomoto R, Everton CW, Fang F, Fujii H, Fujita Y, Fukunaga C, Fukushima M, Garmash A, Gordon A, Gotow K, Guler H, Guo R, Haba J, Haji T, Hamasaki H, Hanagaki K, Handa F, Hara K, Hara T, Hastings NC, Hayashi K, Hayashii H, Hazumi M, Heenan EM, Higuchi I, Higuchi T, Hirai T, Hirano H, Hojo T, Hoshi Y, Hou WS, Hsu SC, Huang HC, Huang YC, Ichizawa S, Igarashi Y, Iijima T, Ikeda H, Ikeda K, Inami K, Inoue Y, Ishikawa A, Ishino H, Itoh R, Iwai G, Iwasaki H, Iwasaki Y, Jackson DJ, Jalocha P, Jang HK, Jones M, Kagan R, Kakuno H, Kaneko J, Kang JH, Kang JS, Kapusta P, Kasami K, Katayama N, Kawai H, Kawai M, Kawamura N, Kawasaki T, Kichimi H, Kim DW, Kim H, Kim HJ, Kim H, Kim SK, Kinoshita K, Kobayashi S, Koike S, Koishi S, Konishi H, Korotushenko K, Krokovny P, Kulasiri R, Kumar S, Kuniya T, Kurihara E, Kuzmin A, Kwon YJ, Lee MH, Lee SH, Leonidopoulos C, Li HB, Lu RS, Makida Y, Manabe A, Marlow D, Matsubara T, Matsuda T, Matsui S, Matsumoto S, Matsumoto T, Miyabayashi K, Miyake H, Miyata H, Moffitt LC, Mohapatra A, Moloney GR, Moorhead GF, Mori S, Mori T, Murakami A, Nagamine T, Nagasaka Y, Nagashima Y, Nakadaira T, Nakano E, Nakao M, Nakazawa H, Nam JW, Narita S, Natkaniec Z, Neichi K, Nishida S, Nitoh O, Noguchi S, Nozaki T, Ogawa S, Ohshima T, Ohshima Y, Okabe T, Okazaki T, Okuno S, Olsen SL, Ozaki H, Pakhlov P, Palka H, Park CS, Park CW, Park H, Peak LS, Peters M, Piilonen LE, Prebys E, Raaf J, Rodriguez JL, Root N, Rozanska M, Rybicki K, Ryuko J, Sagawa H, Sakai Y, Sakamoto H, Sakaue H, Satapathy M, Sato N, Satpathy A, Schrenk S, Semenov S, Sevior ME, Shibuya H, Shwartz B, Sidorov A, Sidorov V, Stanic S, Sugi A, Sugiyama A, Sumisawa K, Sumiyoshi T, Suzuki J, Suzuki K, Suzuki S, Suzuki SY, Swain SK, Tajima H, Takahashi T, Takasaki F, Takita M, Tamai K, Tamura N, Tanaka J, Tanaka M, Tanaka Y, Taylor GN, Teramoto Y, Tomoto M, Tomura T, Tovey SN, Trabelsi K, Tsuboyama T, Tsujita Y, Tsukamoto T, Tsukamoto T, Uehara S, Ueno K, Ujiie N, Unno Y, Uno S, Ushiroda Y, Usov Y, Vahsen SE, Varner G, Varvell KE, Wang CC, Wang CH, Wang MZ, Wang TJ, Watanabe Y, Won E, Yabsley BD, Yamada Y, Yamaga M, Yamaguchi A, Yamaguchi H, Yamaoka H, Yamaoka Y, Yamashita Y, Yamauchi M, Yanaka S, Yokoyama M, Yoshida K, Yusa Y, Yuta H, Zhang CC, Zhao HW, Zheng Y, Zhilich V, Zontar D. Measurement of B(0)(d)-B_(0)(d) mixing rate from the time evolution of dilepton events at the upsilon(4S). PHYSICAL REVIEW LETTERS 2001; 86:3228-3232. [PMID: 11327938 DOI: 10.1103/physrevlett.86.3228] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/27/2000] [Indexed: 05/23/2023]
Abstract
We report a determination of the B(0)(d)-&B_(0)(d) mixing parameter Deltam(d) based on the time evolution of dilepton yields in Upsilon(4S) decays. The measurement is based on a 5.9 fb(-1) data sample collected by the Belle detector at KEKB. The proper-time difference distributions for same-sign and opposite-sign dilepton events are simultaneously fitted to an expression containing Deltam(d) as a free parameter. Using both muons and electrons, we obtain Deltam(d) = 0.463+/-0.008 (stat)+/-0.016 (syst) ps(-1). This is the first determination of Deltam(d) from time evolution measurements at the Upsilon(4S). We also place limits on possible CPT violations.
Collapse
|
89
|
Ryu S, Choi SK, Joung SS, Suh H, Cha YS, Lee S, Lim K. Caffeine as a lipolytic food component increases endurance performance in rats and athletes. J Nutr Sci Vitaminol (Tokyo) 2001; 47:139-46. [PMID: 11508705 DOI: 10.3177/jnsv.47.139] [Citation(s) in RCA: 39] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
Caffeine is one of the famous ergogenic aids in the athletic field. Caffeine has been known to stimulate lipolysis that spares stored glycogen utilization during moderate intensity exercise. Therefore, we investigated the effects of caffeine ingestion on exercise performance in rats and athletes. Rats were administered the caffeine (6 mg/kg) 1 h prior to the exercise then were run on a treadmill at a speed of 20 m/min. They were decapitated at 0 min, 30 min, 60 min of exercise, and exhausted time point. Human subjects ingested the caffeine (5 mg/kg) 1 h prior to the exercise. They exercised on a cycle ergometer at 60% of their VO2max for 45 min, and then the exercise intensity was increased to 80% of their VO2max until exhaustion. Blood and breathing gas samples were collected and calculated every 10 min during exercise. Respiratory exchange ratio of the caffeine trial was significantly lower than that of the placebo trial in the athletes' study (p<0.05). Blood free fatty acid (FFA) levels in studies of both rats and athletes were increased by caffeine ingestion during exercise (p<0.05). Blood lactate levels were also increased during exercise in both rats and athletes (p<0.05). Increased FFA and glycerol concentrations reduced glycogen utilization during exercise compared with placebo group in rats. In addition, endurance time to exhaustion was significantly increased by the caffeine ingestion in both rats and athletes (p<0.05). These results suggest that the caffeine ingestion enhanced endurance performance resulting from spare stored glycogen with increasing lipolysis from adipose tissues and fat oxidation during exercise both in rats and in athletes.
Collapse
|
90
|
Abashian A, Abe K, Abe K, Adachi I, Ahn BS, Aihara H, Akatsu M, Alimonti G, Aoki K, Asai K, Asai M, Asano Y, Aso T, Aulchenko V, Aushev T, Bakich AM, Banas E, Behari S, Behera PK, Beiline D, Bondar A, Bozek A, Browder TE, Casey BC, Chang P, Chao Y, Cheon BG, Choi SK, Choi Y, Doi Y, Dragic J, Drutskoy A, Eidelman S, Enari Y, Enomoto R, Everton CW, Fang F, Fujii H, Fujimoto K, Fujita Y, Fukunaga C, Fukushima M, Garmash A, Gordon A, Gotow K, Guler H, Guo R, Haba J, Haji T, Hamasaki H, Hanagaki K, Handa F, Hara K, Hara T, Haruyama T, Hastings NC, Hayashi K, Hayashii H, Hazumi M, Heenan EM, Higashi Y, Higashino Y, Higuchi I, Higuchi T, Hirai T, Hirano H, Hirose M, Hojo T, Hoshi Y, Hoshina K, Hou WS, Hsu SC, Huang HC, Huang YC, Ichizawa S, Igarashi Y, Iijima T, Ikeda H, Ikeda K, Inami K, Inoue Y, Ishikawa A, Ishino H, Itoh R, Iwai G, Iwai M, Iwamoto M, Iwasaki H, Iwasaki Y, Jackson DJ, Jalocha P, Jang HK, Jones M, Kagan R, Kakuno H, Kaneko J, Kang JH, Kang JS, Kapusta P, Kasami K, Katayama N, Kawai H, Kawai H, Kawai M, Kawamura N, Kawasaki T, Kichimi H, Kim DW, Kim H, Kim HJ, Kim H, Kim SK, Kinoshita K, Kobayashi S, Koike S, Koishi S, Kondo Y, Konishi H, Korotushenko K, Krokovny P, Kulasiri R, Kumar S, Kuniya T, Kurihara E, Kuzmin A, Kwon YJ, Lee MH, Lee SH, Leonidopoulos C, Li HB, Lu RS, Makida Y, Manabe A, Marlow D, Matsubara T, Matsuda T, Matsui S, Matsumoto S, Matsumoto T, Mikami Y, Misono K, Miyabayashi K, Miyake H, Miyata H, Moffitt LC, Mohapatra A, Moloney GR, Moorhead GF, Morgan N, Mori S, Mori T, Murakami A, Nagamine T, Nagasaka Y, Nagashima Y, Nakadaira T, Nakamura T, Nakano E, Nakao M, Nakazawa H, Nam JW, Narita S, Natkaniec Z, Neichi K, Nishida S, Nitoh O, Noguchi S, Nozaki T, Ogawa S, Ohshima T, Ohshima Y, Okabe T, Okazaki T, Okuno S, Olsen SL, Ostrowicz W, Ozaki H, Pakhlov P, Palka H, Park CS, Park CW, Park H, Peak LS, Peters M, Piilonen LE, Prebys E, Rodriguez JL, Root N, Rozanska M, Rybicki K, Ryuko J, Sagawa H, Saitoh S, Sakai Y, Sakamoto H, Sakaue H, Satapathy M, Sato N, Satpathy A, Schrenk S, Semenov S, Settai Y, Sevior ME, Shibuya H, Shwartz B, Sidorov A, Sidorov V, Singh JB, Stanic S, Sugi A, Sugiyama A, Sumisawa K, Sumiyoshi T, Suzuki J, Suzuki J, Suzuki K, Suzuki S, Suzuki SY, Swain SK, Tajima H, Takahashi T, Takasaki F, Takita M, Tamai K, Tamura N, Tanaka J, Tanaka M, Tanaka Y, Taylor GN, Teramoto Y, Tomoto M, Tomura T, Tovey SN, Trabelsi K, Tsuboyama T, Tsujita Y, Tsukamoto T, Tsukamoto T, Uehara S, Ueno K, Ujiie N, Unno Y, Uno S, Ushiroda Y, Usov Y, Vahsen SE, Varner G, Varvell KE, Wang CC, Wang CH, Wang MZ, Wang TJ, Watanabe Y, Won E, Yabsley BD, Yamada Y, Yamaga M, Yamaguchi A, Yamaguchi H, Yamamoto H, Yamanaka T, Yamaoka H, Yamaoka Y, Yamashita Y, Yamauchi M, Yanaka S, Yokoyama M, Yoshida K, Yusa Y, Yuta H, Zhang CC, Zhao HW, Zhang J, Zheng Y, Zhilich V, Zontar D. Measurement of the CP violation parameter sin2 phi(1) in B(0)(d) meson decays. PHYSICAL REVIEW LETTERS 2001; 86:2509-2514. [PMID: 11289969 DOI: 10.1103/physrevlett.86.2509] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/09/2001] [Indexed: 05/23/2023]
Abstract
We present a measurement of the standard model CP violation parameter sin2 phi(1) (also known as sin2beta) based on a 10.5 fb(-1) data sample collected at the Upsilon(4S) resonance with the Belle detector at the KEKB asymmetric e(+)e(-) collider. One neutral B meson is reconstructed in the J/psiK(S), psi(2S)K(S), chi(c1)K(S), eta(c)K(S), J/psiK(L), or J/psipi(0) CP-eigenstate decay channel and the flavor of the accompanying B meson is identified from its charged particle decay products. From the asymmetry in the distribution of the time interval between the two B-meson decay points, we determine sin2 phi(1) = 0.58(+0.32)(-0.34)(stat)+0.09-0.10(syst).
Collapse
|
91
|
Abstract
We report a patient with massive gastrointestinal bleeding from jejunal varices, confirmed by emergency laparotomy. A 54-year-old woman was admitted to Chonnam National University Hospital with a 5-day history of melena with hematochezia. Fifteen years previously, she had undergone cholecystectomy for gallstone. Seven years previously, she had undergone an operation because of possible common bile duct stone. The details of this operation were not known. Upper gastrointestinal endoscopy revealed no varices in the esophagus, stomach, and proximal duodenum. Colonoscopy demonstrated black-colored blood clots throughout the colon. A technetium-99m-labeled red blood cell (RBC) scan showed active proximal small bowel bleeding. Abdominal aortic angiography revealed mesenteric varices in the upper abdomen, but no active bleeding source was recognized. Because of the patient's continued massive gastrointestinal bleeding despite medical therapy, emergency laparotomy was performed. We found evidence of micronodular cirrhosis of the liver and an apparent Roux-en-Y anastomosis. There were numerous collateral variceal vessels in the jejunal limb with the liver and abdominal wall. Segmental resection of the involved jejunum and end-to-end anastomosis were perdilated formed. Histologic examination revealed submucosal veins with mucosal erosion.
Collapse
|
92
|
Kim SB, Shin BS, Choi SK, Kim CK, Park SH. Involvement of acetyl phosphate in the in vivo activation of the response regulator ComA in Bacillus subtilis. FEMS Microbiol Lett 2001; 195:179-83. [PMID: 11179649 DOI: 10.1111/j.1574-6968.2001.tb10518.x] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
Development of genetic competence in Bacillus subtilis is regulated by ComP--ComA, a two-component signal transduction system. The response regulator ComA is primarily activated by ComP, a histidine kinase that mediates response to nutrient conditions and cell density, and the activated ComA is required for transcription of the srf operon, which is essential for the development of genetic competence and surfactin production. In this study we suggested that the ComA could also be activated by a small molecule phospho-donor, acetyl phosphate. Examination of srfA-lacZ expression indicated that a significant amount of srfA expression still occurs in the comP mutant during growth in a sporulation medium containing excess glucose. Analysis of a comP and pta mutant suggests that srfA activation seen in the comP mutant is dependent on the expression of pta, which encodes phosphotransacetylase (Pta). As Pta is responsible for the catalysis for conversion of acetyl coenzyme A to acetyl phosphate, we conclude that the expression of srfA seen in the comP mutant is mainly due to the activation of ComA by acetyl phosphate.
Collapse
|
93
|
Han MS, Kang PW, Choi DH, Lee YH, Choi SK, Kim W. Genetic variation at eight STR loci in the Korean population. Forensic Sci Int 2001; 116:35-6. [PMID: 11118750 DOI: 10.1016/s0379-0738(00)00334-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
The frequency distributions of eight STR loci were surveyed in 510 unrelated individuals from the Korean population
Collapse
|
94
|
Kim YJ, Shin DJ, Kim JM, Jin HJ, Kwak KD, Han MS, Choi SK, Kim W. Y-chromosome STR haplotype profiling in the Korean population. Forensic Sci Int 2001; 115:231-7. [PMID: 11074178 DOI: 10.1016/s0379-0738(00)00332-7] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
Allele and haplotype frequencies of seven Y-chromosome STR loci were determined from a sample of 330 unrelated males in the Korean population.
Collapse
|
95
|
Yoo CK, Cho JH, Kwak HJ, Choi SK, Chun HD, Lee I. Closed-loop identification and control application for dissolved oxygen concentration in a full-scale coke wastewater treatment plant. WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2001; 43:207-214. [PMID: 11385849] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
The objective of this paper is to apply a closed-loop identification to actual dissolved oxygen control system in the coke wastewater treatment plant. It approximates the dissolved oxygen dynamics to a high order model using the integral transform method and reduces it to the first-order plus time delay (FOPTD) or second-order plus time delay (SOPTD) for the PID controller tuning. To experiment the process identification on the real plant, a simple set-point change of the speed of surface aerator under the closed-loop control without any mode change was used as an activation signal of the identification. The full-scale experimental results show a good identification performance and a good tracking ability for set-point change. As a result of improved control performance, the fluctuation of dissolved oxygen concentration variation has been decreased and the electric power saving has been accomplished.
Collapse
|
96
|
Tsang SK, Cheh J, Isaacs L, Joseph-McCarthy D, Choi SK, Pevear DC, Whitesides GM, Hogle JM. A structurally biased combinatorial approach for discovering new anti-picornaviral compounds. CHEMISTRY & BIOLOGY 2001; 8:33-45. [PMID: 11182317 DOI: 10.1016/s1074-5521(00)00053-3] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
BACKGROUND Picornaviruses comprise a family of small, non-enveloped RNA viruses. A common feature amongst many picornaviruses is a hydrophobic pocket in the core of VP1, one of the viral capsid proteins. The pocket is normally occupied by a mixture of unidentified, fatty acid-like moieties, which can be competed out by a family of capsid-binding, antiviral compounds. Many members of the Picornaviridae family are pathogenic to both humans and livestock, yet no adequate therapeutics exist despite over a decade's worth of research in the field. To address this challenge, we developed a strategy for rapid identification of capsid-binding anti-picornaviral ligands. The approach we took involved synthesizing structurally biased combinatorial libraries that had been targeted to the VP1 pocket of poliovirus and rhinovirus. The libraries are screened for candidate ligands with a high throughput mass spectrometry assay. RESULTS Using the mass spectrometry assay, we were able to identify eight compounds from a targeted library of 75 compounds. The antiviral activity of these candidates was assessed by (i) measuring the effect on the kinetics of viral uncoating and (ii) the protective effect of each drug in traditional cell-based assays. All eight of the candidates exhibited antiviral activity, but three of them were particularly effective against poliovirus and rhinovirus. CONCLUSIONS The results illustrate the utility of combining structure-based design with combinatorial chemistry. The success of our approach suggests that assessment of small, targeted libraries, which query specific chemical properties, may be the best strategy for surveying all of chemical space for ideal anti-picornaviral compounds.
Collapse
|
97
|
Kim HJ, Choi SK, Lee CJ, Suh CH. Aggressive epithelial odontogenic ghost cell tumor in the mandible: CT and MR imaging findings. AJNR. AMERICAN JOURNAL OF NEURORADIOLOGY 2001. [PMID: 11158905 DOI: 10.1002/0470846453.ch77] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
We report a case of aggressive epithelial odontogenic ghost cell tumor arising from the mandible in a 32-year-old man. On CT and MR studies, the tumor was seen as a large, heterogeneous soft-tissue mass that caused marked destruction of the mandible and invaded the mouth floor and tongue base. The tumor displayed a variety of densities and signal intensities on CT and MR images, which correlated well with the degree of cellularity of epithelial islands, abundance of ghost cells and eosinophilic materials, calcification, and cystic areas on histologic sections. Owing to the unpredictable biological behavior of this type of tumor, careful, long-term follow-up is highly recommended.
Collapse
|
98
|
Han SW, Joo YE, Kim HS, Choi SK, Rew JS, Kim JK, Kim SJ. Clinical results of the transjugular intrahepatic portosystemic shunt (TIPS) for the treatment of variceal bleeding. Korean J Intern Med 2000; 15:179-86. [PMID: 11242805 PMCID: PMC4531767 DOI: 10.3904/kjim.2000.15.3.179] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Transjugular intrahepatic portosystemic shunt (TIPS) has been popularized for the treatment of refractory variceal bleeding. The aim of this study was to assess the safety and long-term effect of TIPS in the treatment of variceal bleeding that is not controlled with pharmacological and endoscopic treatment. METHODS Thirty-six patients who underwent transjugular intrahepatic portosystemic shunt (TIPS) due to refractory variceal bleeding were included in the study. The effectiveness of portal decompression and bleeding control was evaluated. Upper gastrointestinal endoscopy was performed to analyse the degree of varices and portal hypertensive gastropathy (PHG) before TIPS procedure and one to three weeks after TIPS. Angiography was performed in surviving patients, if bleeding recurred, or if ultrasonography or endoscopy suggested stent dysfunction. RESULTS TIPS were successfully placed in 36 of 38 patients (94.6%). TIPS achieved hemostasis of variceal bleeding in 34 patients (94.4%). Portal venous pressure decreased from an initial average of 28.7 +/- 7.9 to 23.2 +/- 9.4 mmHg after TIPS (p < 0.05). The portosystemic pressure gradient was significantly decreased from 15.5 +/- 6.3 to 7.8 +/- 4.1 mmHg (p < 0.01). The degree of esophagogastric varices and PHG was significantly improved after TIPS. The total length of follow-up was from one day to 54 months (mean: 355 days). The actuarial probability of survival was 83% at one year and 74% at two years. Overall, 16 episodes of stent dysfunction were diagnosed during follow-up. Stent revision by means of angioplasty was successfully performed in 14 of these episodes. CONCLUSION TIPS is an effective and reliable nonoperative means of lowering portal pressure. This procedure has proved useful in the management of acute variceal bleeding refractory to endoscopic treatment. Surveillance by ultrasonography, endoscopy, and angiographic intervention is useful for the maintenance of shunt patency.
Collapse
|
99
|
Joo YE, Seo YH, Lee WS, Kim HS, Choi SK, Rew JS, Park CS, Kim SJ. Expression of tissue inhibitors of metalloproteinases (TIMPs) in hepatocellular carcinoma. Korean J Intern Med 2000; 15:171-8. [PMID: 11242804 PMCID: PMC4531765 DOI: 10.3904/kjim.2000.15.3.171] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
Abstract
BACKGROUND Matrix metalloproteinases (MMPs) have been implicated in the remodelling of extracellular matrix (ECM), including basement membrane. ECM remodelling is associated with pathological processes, including hepatic fibrosis, tumor invasion and metastasis. Tissue inhibitors of metalloproteinase (TIMP)-1 and TIMP-2 were known to inhibit MMP-9 and MMP-2, respectively. In the present study, we examined the expression of TIMP-1 and TIMP-2 in surgical specimen pairs of hepatocellular carcinoma and nontumoral liver and the correlation between their expression and clinicopathological characteristics. METHODS The localization of both transcripts and protein of TIMP-1 and TIMP-2 was studied by using in situ hybridization and immunohistochemistry. RESULTS TIMP-1 and TIMP-2 mRNA transcripts were found in tumor cells, hepatocyte, sinusoidal cells, endothelial cells and stromal cells. Signal intensity of TIMP-1 was stronger than that of TIMP-2. The results of immunohistochemical stainings were concordant with those obtained by in situ hybridization. Expression of TIMP-1 and TIMP-2 was observed in tumorous tissue, in nontumorous tissue and in the portions of the tumors adjacent to the capsules. However, a clear difference in TIMP-1 and TIMP-2 mRNA expression was not observed among the three tissue types. The intensity of TIMP-2 expression was generally weaker than that of TIMP-1, and the intensity of TIMP-1 and TIMP-2 mRNA expression did not correlate with variable clinicopathological characteristics. CONCLUSION TIMPs was expressed in tumor cells and many cell types of the nontumoral liver. Further investigations for TIMPs' unknown functional role are needed.
Collapse
|
100
|
Joo YE, Park CS, Kim HS, Choi SK, Rew JS, Kim SJ. Prognostic significance of E-cadherin/catenin complex expression in gastric cancer. J Korean Med Sci 2000; 15:655-66. [PMID: 11194192 PMCID: PMC3054710 DOI: 10.3346/jkms.2000.15.6.655] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Abnormal expression of E-cadherin/catenin complex in cancer has been associated with poor differentiation and acquisition of invasiveness, suggesting a possible role of this protein as an invasion suppressor. In this study, we conducted an immunohistochemical investigation of all components of the E-cadherin/catenin complex in 65 gastric cancer patients. Abnormal expression of E-cadherin and, alpha- and gamma-catenin occurred more frequently in diffuse than in intestinal type of gastric cancer, and correlated with poor differentiation. Abnormal expression of E-cadherin and beta-catenin correlated with poor survival. Abnormal expression of all four components of the complex was associated with poorly differentiated and diffuse-type carcinoma, and poor survival. In the multivariate analysis, abnormal expression of the E-cadherin/catenin complex was not an independent prognostic factor. These results suggest that the E-cadherin/catenin complex may be a useful marker of differentiation and prognosis in gastric cancer. Further studies are warranted to clarify the impact of the E-cadherin/catenin complex on prognostic factor of gastric cancer.
Collapse
|