Search Results - (Author, Cooperation:T. K. Li)
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1C. C. Wu ; T. K. Li ; L. Farh ; L. Y. Lin ; T. S. Lin ; Y. J. Yu ; T. J. Yen ; C. W. Chiang ; N. L. Chan
American Association for the Advancement of Science (AAAS)
Published 2011Staff ViewPublication Date: 2011-07-23Publisher: American Association for the Advancement of Science (AAAS)Print ISSN: 0036-8075Electronic ISSN: 1095-9203Topics: BiologyChemistry and PharmacologyComputer ScienceMedicineNatural Sciences in GeneralPhysicsKeywords: Base Pairing ; Catalytic Domain ; Crystallography, X-Ray ; DNA/*chemistry/metabolism ; DNA Topoisomerases, Type II/*chemistry/genetics/metabolism ; DNA-Binding Proteins/*chemistry/genetics/metabolism ; Drug Resistance, Neoplasm ; Etoposide/analogs & derivatives/*chemistry/metabolism/*pharmacology ; Humans ; Models, Molecular ; Mutant Proteins/chemistry/metabolism ; Mutation ; Protein Multimerization ; Protein Structure, Quaternary ; Protein Structure, Tertiary ; Structure-Activity Relationship ; Topoisomerase II Inhibitors/*chemistry/metabolism/*pharmacologyPublished by: -
2Tucker, D. W., Getchell, C. R., McCarthy, E. T., Ohman, A. W., Sasamoto, N., Xu, S., Ko, J. Y., Gupta, M., Shafrir, A., Medina, J. E., Lee, J. J., Mac; Donald, L. A., Malik, A., Hasselblatt, K. T., Li, W., Zhang, H., Kaplan, S. J., Murphy, G. F., Hirsch, M. S., Liu, J. F., Matulonis, U. A., Terry, K. L., Lian, C. G., Dinulescu, D. M.
The American Association for Cancer Research (AACR)
Published 2018Staff ViewPublication Date: 2018-03-16Publisher: The American Association for Cancer Research (AACR)Print ISSN: 1078-0432Electronic ISSN: 1557-3265Topics: MedicinePublished by: -
3CHRISTIAN, J. C. ; MORZORATI, S. ; NORTON, J. A. ; WILLIAMS, C. J. ; O'CONNOR, S. ; LI, T.-K.
Oxford, UK : Blackwell Publishing Ltd
Published 1996Staff ViewISSN: 1469-8986Source: Blackwell Publishing Journal Backfiles 1879-2005Topics: MedicinePsychologyNotes: Most twin studies have provided evidence for genetic effects on the electroencephalogram (EEG). In two twin studies, monozygotic (MZ) cotwin covariance for EEG power was greater than expected for additive gene actions, as compared with dizygotic (DZ) cotwin covariance. These findings were attributed to complex gene interactions, termed emergenesis. In the present study of 53 MZ and 38 DZ twin pairs departures from the additive genetic model were tested on resting EEG power. Total spectral power and the quotient of (beta band power)/(total power) both fit gene interaction models significantly better than did additive genetic models. These findings support the previous findings of MZ covariance for EEG power as much greater than DZ covariance; these findings can be explained entirely by the additive effects of genes. This pattern of twin covariances could be due to gene interactions but also to greater MZ than DZ environmental covariance.Type of Medium: Electronic ResourceURL: -
4Gao, J. ; Sun, J. L. ; So, S. M. ; Tang, W. H. ; Li, T. K.
Woodbury, NY : American Institute of Physics (AIP)
Published 2001Staff ViewISSN: 1077-3118Source: AIP Digital ArchiveTopics: PhysicsNotes: High-Tc Josephson junctions with a graded barrier have been prepared by using a composite target. Such a barrier is synthesized by utilizing Y1−xPrxBa2Cu3Oy with a continually graded concentration of Pr, in which no lattice mismatch and other incompatible problems take place. The structural interfaces are absent in the weak link region and Josephson coupling occurs at the naturally formed superconducting/normal interfaces within the Y1−xPrxBa2Cu3Oy layer. Thus, it can significantly enhance the reproducibilty and performance of these junctions. The temperature dependences of the barrier thickness and Josephson were also studied.© 2001 American Institute of Physics.Type of Medium: Electronic ResourceURL: -
5Staff View
ISSN: 1749-6632Source: Blackwell Publishing Journal Backfiles 1879-2005Topics: Natural Sciences in GeneralType of Medium: Electronic ResourceURL: -
6HABER, H. ; DUMAUAL, N. ; BARE, D. J. ; MELZIG, M. F. ; McBRIDE, W. F. ; LUMENG, L. ; LI, T. K.
Oxford, UK : Blackwell Publishing Ltd
Published 1999Staff ViewISSN: 1369-1600Source: Blackwell Publishing Journal Backfiles 1879-2005Topics: MedicineNotes: To explore the hypothesis that endogenous 1-methyl-6,7-dihydroxy-1,2,3,4-tetrahydroisoquinoline (salsolinol) might be involved in the etiology of alcoholism, its concentration was determined in the striatum and adrenal gland of rats bred selectively for disparate alcohol drinking. The alcohol-naive alcohol-preferring (P) and the high-alcohol-drinking (HAD) lines of rats demonstrated significantly lower striatal and adrenal salsolinol content when compared with the alcohol-non-preferring (NP) and the low-alcohol-drinking (LAD) lines. In the P-line of rats, 4 weeks of free-choice alcohol drinking had no significant effect on striatal salsolinol levels, although adrenal levels of salsolinol were significantly higher. The salsolinol assayed in the striatum of all lines of rats occurred as a racemic mixture of enantiomers that was unchanged following 4 weeks of alcohol exposure. Unlike striatal tissue, the adrenals of alcohol naive P-rats contained significantly more S- than R-salsolinol (ratio S/R = 83/17) and alcohol consumption resulted in the formation of a nearly racemic mixture of enantiomers. These results suggest a role for genetic factors in the formation of endogenous salsolinol and its potential regulation by short-term alcohol intake.Type of Medium: Electronic ResourceURL: -
7SALIMOV, R. M. ; MCBRIDE, W. J. ; SINCLAIR, J. D. ; LUMENG, L. ; LI, T.-K.
Oxford, UK : Blackwell Publishing Ltd
Published 1996Staff ViewISSN: 1369-1600Source: Blackwell Publishing Journal Backfiles 1879-2005Topics: MedicineNotes: Alcohol naive rats from lines genetically selected for high and low alcohol drinking and founded on either Wistar (P/NP lines) and distinct heterogeneous stocks (AA/ANA and replicate HAD/LAD lines) were tested in the explorative cross-maze and the inescapable slip funnel. Rats of the low alcohol-consuming ANA, NP, LAD1 and LAD2 lines all exhibited a shorter latency before initiating exploration of the maze than did their high alcohol-consuming counterparts (66, 51, 33 and 51% of the values for AA, P, HAD1 and HAD2 lines, respectively). Significant line differences were also found with the slip funnel test (AA 〉 ANA for time in a sprawling posture; P 〉 NP but HAD1 〈 LAD1 and HAD2 〈 LAD2 for time escaping), but the directions of line differences were not consistently related to those in alcohol drinking.Type of Medium: Electronic ResourceURL: -
8McKinzie, D. L. ; Li, T.-K. ; McBride, W. J. ; Slusher, B. S.
Oxford, UK : Blackwell Publishing Ltd
Published 2000Staff ViewISSN: 1369-1600Source: Blackwell Publishing Journal Backfiles 1879-2005Topics: MedicineNotes: N-acetyl-aspartyl-glutamate (NAAG) is a major peptide component of the brain, with millimolar tissue levels of 0.1–5 nmol/mg wet weight. NAAG is hydrolyzed by the enzyme N-acetylated alpha-linked acidic dipeptidase (NAALADase; glutamate carboxypeptidase II; EC no. 3.4.17.21) to N-acetyl-aspartate (NAA) and glutamate. Recently, a potent and selective NAALADase inhibitor termed 2-(phosphonomethyl)pentanedioic acid (2-PMPA) was identified that has a 300 pM Ki for NAALADase inhibition. Given the accumulating evidence indicating an important role of the glutamate system in alcoholism and dependence, the objective of this study was to evaluate the effects of systemic administration of 2-PMPA (50, 100 and 200 mg/kg; i.p.) upon the ethanol intakes of alcohol-preferring (P) rats. Female P rats (n = 8) received daily 1-hour scheduled access to a 10% (v/v) ethanol. In a within-subjects design, 2-PMPA treatments were tested once a week. Baseline ethanol drinking consisted of the mean of the 3 days prior to testing in which saline injections were given. Results indicated that, whereas the 200 mg/kg dose of 2-PMPA had no effect on ethanol intake, both the 50 and 100 mg/kg doses significantly reduced ethanol consumption by approximately 25% (p 〈 0.05) during the 1-hour access period. Body weights and 24-hour water intakes were not altered at any of the doses. These data suggest that the NAAG/NAALADase system may be involved in neuronal systems regulating alcohol-drinking behavior.Type of Medium: Electronic ResourceURL: -
9KATNER, S. N. ; McBRIDE, W. J. ; LUMENG, L. ; LI, T.-K. ; MURPHY, J. M.
Oxford, UK : Blackwell Publishing Ltd
Published 1997Staff ViewISSN: 1369-1600Source: Blackwell Publishing Journal Backfiles 1879-2005Topics: MedicineNotes: Abstract Experiments were undertaken to determine if CNS muscarinic- and nicotinic-cholinergic receptors are involved in regulating alcohol drinking of rats from the selectively-bred alcohol-preferring P line. Intracerebroventricular (i.c.v.) drug infusions were administered into the lateral ventricle of female P rats 15 minutes before ethanol access. The muscarinic antagonists pirenzepine and scopolamine were tested on limited access (4 hours/day) to a 10% (v/v) ethanol solution. Food and water were available ad libitum. Nicotine and the nicotinic antagonist mecamylamine were tested on limited access (4 hours/day) to 10% (v/v) ethanol and 0.0125% saccharin solutions. Food was available ad libitum and water was available during the remaining 20 hours. The baseline ethanol intakes ranged between an average of 3.0 ± 0.3 g/kg/4 hours and 3.4 ± 0.3 g/kg/4 hours. Administration of 40-100 m g pirenzepine (M1-selective antagonist) had no effect on ethanol, food or water consumption. However, 20-80 m g scopolamine, a non-selective muscarinic antagonist, dosedependently decreased ethanol intake as much as 60% (p 〈 0.05) without altering food or water consumption. The nicotinic antagonist mecamylamine (20-120 m g) did not alter ethanol intake, but nicotine (40-80 m g) dose-dependently decreased ethanol drinking as much as 60% within the first 30 minutes (p 〈 0.05) without an effect on saccharin intake. The results suggest that: (a), muscarinic receptors, with the possible exception of the M1 subtype, are involved in regulating alcohol drinking and (b), activation of nicotinic receptors can reduce alcohol drinking of the P line of rats.Type of Medium: Electronic ResourceURL: -
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ISSN: 0005-2736Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002Topics: BiologyChemistry and PharmacologyMedicinePhysicsType of Medium: Electronic ResourceURL: -
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ISSN: 0006-291XSource: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002Topics: BiologyChemistry and PharmacologyPhysicsType of Medium: Electronic ResourceURL: -
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ISSN: 0009-8981Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002Topics: MedicineType of Medium: Electronic ResourceURL: -
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ISSN: 0003-2697Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002Topics: BiologyChemistry and PharmacologyType of Medium: Electronic ResourceURL: -
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ISSN: 0003-9861Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002Topics: BiologyChemistry and PharmacologyPhysicsType of Medium: Electronic ResourceURL: -
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ISSN: 0006-291XSource: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002Topics: BiologyChemistry and PharmacologyPhysicsType of Medium: Electronic ResourceURL: -
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ISSN: 0006-291XSource: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002Topics: BiologyChemistry and PharmacologyPhysicsType of Medium: Electronic ResourceURL: -
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ISSN: 0006-291XSource: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002Topics: BiologyChemistry and PharmacologyPhysicsType of Medium: Electronic ResourceURL: -
18Burnell, J.C. ; Carr, L.G. ; Dwulet, F.E. ; Edenberg, H.J. ; Li, T.-K. ; Bosron, W.F.
Amsterdam : ElsevierStaff ViewISSN: 0006-291XSource: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002Topics: BiologyChemistry and PharmacologyPhysicsType of Medium: Electronic ResourceURL: -
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ISSN: 0006-291XSource: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002Topics: BiologyChemistry and PharmacologyPhysicsType of Medium: Electronic ResourceURL: -
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ISSN: 0006-291XSource: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002Topics: BiologyChemistry and PharmacologyPhysicsType of Medium: Electronic ResourceURL: