426
|
Ye L, Freeman AJ, Delley B. Surface properties of Si(111)7 x 7 upon H and NH2 adsorption: A local-density-functional study. PHYSICAL REVIEW. B, CONDENSED MATTER 1993; 48:11107-11112. [PMID: 10007417 DOI: 10.1103/physrevb.48.11107] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
|
427
|
Ye L, Liu J, Sheng P, Weitz DA. Sound propagation in suspensions of solid spheres. PHYSICAL REVIEW. E, STATISTICAL PHYSICS, PLASMAS, FLUIDS, AND RELATED INTERDISCIPLINARY TOPICS 1993; 48:2805-2815. [PMID: 9960915 DOI: 10.1103/physreve.48.2805] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
|
428
|
Kamino K, Nakura J, Kihara K, Ye L, Nagano K, Ohta T, Jinno Y, Niikawa N, Miki T, Ogihara T. Population variation in the dinucleotide repeat polymorphism at the D8S360 locus. Hum Mol Genet 1993; 2:1751. [PMID: 8268949 DOI: 10.1093/hmg/2.10.1751] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023] Open
|
429
|
|
430
|
Wang X, Huang D, Ye L, Yang M, Hao P, Fu H, Hou X, Xie X. Pinning of photoluminescence peak positions for light-emitting porous silicon: An evidence of quantum size effect. PHYSICAL REVIEW LETTERS 1993; 71:1265-1267. [PMID: 10055492 DOI: 10.1103/physrevlett.71.1265] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
|
431
|
Zhang YZ, Liu X, Zhang CJ, Ye L. [Studies on urinary metabolites of calusterone in man]. YAO XUE XUE BAO = ACTA PHARMACEUTICA SINICA 1993; 28:918-923. [PMID: 8030416] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
The metabolites of calusterone (17 beta-OH-7 beta, 17 alpha-dimethyl-androst-4-ene-3-one) in man has been investigated by GC/MS. After oral administration, the parent compound and seven metabolites were detected in the conjugated fraction. The extraction and fractionation of these metabolites were achieved by using XAD-2 column. The sample was derivatized with MSTFA/TMSI before GC/MS analysis. The mass spectra of the metabolites are presented and the metabolic pathway was discussed.
Collapse
|
432
|
Nakura J, Miki T, Nagano K, Kihara K, Ye L, Kamino K, Fujiwara Y, Yoshida S, Murano S, Fukuchi K. Close linkage of the gene for Werner's syndrome to ANK1 and D8S87 on the short arm of chromosome 8. Gerontology 1993; 39 Suppl 1:11-5. [PMID: 8365666 DOI: 10.1159/000213560] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023] Open
Abstract
Werner's syndrome (WRN) is a rare autosomal recessive disorder characterized by the appearance of features of premature aging in a young adult. Skin fibroblasts from WRN patient demonstrate slow growth, reduced life span in vitro and mutator phenotype. The genetic defect in WRN is unknown. We have studied 23 WRN patients mainly from first or second cousin marriage and have applied homozygosity mapping to search for the WRN locus. A peak lod score of 5.58 at a recombination fraction of 0.03 was obtained with D8S87. We confirmed that the WRN locus was located on the short arm of chromosome 8, 8p11.2-p12.
Collapse
|
433
|
Ye L, Sugiura M. Domains required for nucleic acid binding activities in chloroplast ribonucleoproteins. Nucleic Acids Res 1992; 20:6275-9. [PMID: 1475188 PMCID: PMC334516 DOI: 10.1093/nar/20.23.6275] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
Five ribonucleoproteins (or RNA-binding proteins) from tobacco chloroplasts have been identified to date; each of these contains an acidic N-terminal domain (24-64 amino acids) and two conserved RNA-binding domains (82-83 amino acids). All five ribonucleoproteins can bind to ssDNA and dsDNA but show high specificity for poly(G) and poly(U). Here we present the nucleic acid binding activity of each domain using a series of deletion mutant proteins made in vitro from the chloroplast 29 kDa ribonucleoproteins. The acidic domain does not have a positive effect on binding activities and proteins lacking this domain show higher affinities for nucleic acids than the wild-type proteins. Mutant proteins containing single RNA-binding domains can bind to poly(G) and poly(U), though with lower affinities than proteins containing two RNA-binding domains. The spacer region (11-37 amino acids) between the two RNA-binding domains does not interact with poly(G) or poly(U) by itself, but is required for the additive activity of the two RNA-binding domains. Proteins consisting of two RNA-binding domains but lacking the spacer have the same activity as those containing only one RNA-binding domain. Possible roles for each domain in chloroplast ribonucleoproteins are discussed.
Collapse
|
434
|
Ye L, Cody G, Zhou M, Sheng P, Norris AN. Observation of bending wave localization and quasi mobility edge in two dimensions. PHYSICAL REVIEW LETTERS 1992; 69:3080-3083. [PMID: 10046720 DOI: 10.1103/physrevlett.69.3080] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
|
435
|
Zhou R, Zhang Y, Ye L. Hypotensive effect of ototherapy in relation to symptomatic and dispositional types of patients. J TRADIT CHIN MED 1992; 12:124-8. [PMID: 1495336] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
|
436
|
Gu Y, Chen Y, Ye L. Electron microscopical demonstration of horseradish peroxidase by use of tetramethylbenzidine as chromogen and sodium tungstate as stabilizer (TMB-ST method): a tracing method with high sensitivity and well preserved ultrastructural tissue. J Neurosci Methods 1992; 42:1-10. [PMID: 1405726 DOI: 10.1016/0165-0270(92)90129-2] [Citation(s) in RCA: 45] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Until now methods using tetramethylbenzidine (TMB) for electron microscopy (TMB-EM methods) are all unable to provide a maximum demonstration of transported horseradish peroxidase (HRP) while maintaining good ultrastructural tissue preservation. In order to solve this problem, we have attempted to adapt a newly developed, highly sensitive TMB method using sodium tungstate (ST) as the stabilizer (TMB-ST method) for HRP electron microscopic retrograde and anterograde fiber tracing. The present study shows that the TMB-ST method combined with diaminobenzidine-cobalt (DAB-Co) is more sensitive than existing TMB-EM methods and that ultrastructural details are well preserved with this combined method. The resultant reaction product complex after osmication is stable and is observed as characteristic crystal-like structures which are extremely electron dense and often aggregated into clumps. In contrast, the TMB-ST method without the DAB-Co step frequently produces a moderate electron-dense reaction product. Therefore, we recommend the TMB-ST method combined with DAB-Co for HRP electron microscopy.
Collapse
|
437
|
Ye L, Zhang A, Li Z, Qin S. [A mid-infrared spectra study of a series of benzocrown ether and macrocyclic polyether diester]. HUA XI YI KE DA XUE XUE BAO = JOURNAL OF WEST CHINA UNIVERSITY OF MEDICAL SCIENCES = HUAXI YIKE DAXUE XUEBAO 1992; 23:102-5. [PMID: 1398617] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
With a Nicolet 20 SX B Fourier Transform infrared spectrometer, the mid-infrared spectra in region of 4000-400 cm-1 were observed for a series of benzocrown ether and macrocyclic polyether diester. A difference in the wavelength of absorption of the ether bond was found between benzocrown ether and macrocyclic polyether diester. The wavelength of absorption of the ether bond of the compounds I-IV moved down about 25 cm-1, as compared with that of the compounds V-IX.
Collapse
|
438
|
Wang Y, Cheng Z, Gao C, Fu S, Wang S, Fu H, Ye L, Ma S. Molecular cytogenetic study of short arm aberrations in human D, G group chromosomes. CHINESE MEDICAL SCIENCES JOURNAL = CHUNG-KUO I HSUEH K'O HSUEH TSA CHIH 1992; 7:27-31. [PMID: 1421359] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Six cases of Dp+/Gp+, 10 cases of D/G translocation, 1 case of supernumerary marker chromosome, and 1 case of Yqs were studied using molecular and cytogenetic techniques. The Ag-NOR frequencies of the Dp+ and Gp+ groups were found to be higher than those of normal controls, while their satellite association frequencies were lower. Autoradiographic silver grains were not significantly distributed along the p+ part of the marker chromosome as revealed by chromosomal in situ hybridization using an rRNA probe. This result differs from our previous report. It is suggested that there might be different mechanisms for the formation of p+ on acrocentric chromosomes. D/G translocation cases were found to have lost their NOR. A study of supernumerary marker chromosomes and Yqs cases suggested that the marker chromosome and Yqs exerted no phenotypic effect. The mechanism of their formation is discussed.
Collapse
|
439
|
Ye L, Freeman A, Delley B. Local density functional study of the structural and electronic properties of C60 and XC60 (X=K, Rb, Cs). Chem Phys 1992. [DOI: 10.1016/0301-0104(92)80008-j] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
|
440
|
Ye L, Weitz DA, Sheng P, Huang JS. Sound propagation in sodium di-2-ethyl-hexylsulfosuccinate micelles and microemulsions. PHYSICAL REVIEW A 1991; 44:8249-8263. [PMID: 9905979 DOI: 10.1103/physreva.44.8249] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
|
441
|
Liu J, Ye L, Weitz DA, Sheng P. Novel acoustic excitations in suspensions of hard-sphere colloids. PHYSICAL REVIEW LETTERS 1990; 65:2602-2605. [PMID: 10042639 DOI: 10.1103/physrevlett.65.2602] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
|
442
|
Ye L, Huang RH. [Permeability of 5 methemoglobin formers through red cell membrane]. ZHONGGUO YAO LI XUE BAO = ACTA PHARMACOLOGICA SINICA 1990; 11:560-3. [PMID: 2130623] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
By measuring the methemoglobin formation, the permeabilities of some cyanide antidotes passing through mouse erythrocyte membrane were studied. K3Fe(CN)6(0.1 mol/L) did not permeate the red cell and no methemoglobin formed. To the red cell suspension, adding PAPP 0.07 mmol/L, an useful cyanide antidote, no methemoglobin was found. On the contrary, PHAPP, the metabolite of PAPP, transported into the cell readily and reacted with hemoglobin to form methemoglobin quickly. DMAP and NaNO2 passed through the red cell membrane easily. With comparable amount of methemoglobin formation, the concentration of NaNO2 was about 200 times as much as that of DMAP. A comparison of the anticyanide potency of DMAP and NaNO2, the permeability rate constant, the half time and activation energy were measured as: 0.217 and 0.0506/min; 3.2 and 13.7 min; 17.1 and 50.2 kJ/mol, respectively. Owing to its ready permeability and formation of methemoglobin, DMAP is a better antidote than NaNO2 against cyanide poisoning.
Collapse
|
443
|
Ye L, Freeman AJ, Ellis DE, Delley B. Electronic structure of kink and kink-antikink defects in polyacetylene. PHYSICAL REVIEW. B, CONDENSED MATTER 1989; 40:6285-6291. [PMID: 9992698 DOI: 10.1103/physrevb.40.6285] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
|
444
|
Ye L, Freeman AJ, Ellis DE, Delley B. Structural, electronic, and optical properties of polyacetylene from a total-energy local-density molecular-cluster approach. PHYSICAL REVIEW. B, CONDENSED MATTER 1989; 40:6277-6284. [PMID: 9992697 DOI: 10.1103/physrevb.40.6277] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
|
445
|
Ye L, Weitz DA, Sheng P, Bhattacharya S, Huang JS, Higgins MJ. Dynamic rigidity percolation in inverted micelles. PHYSICAL REVIEW LETTERS 1989; 63:263-266. [PMID: 10041024 DOI: 10.1103/physrevlett.63.263] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
|
446
|
Xu KC, Meng XY, Shi YC, Ge ZJ, Ye L, Yu ZJ, Yang DM. Clinical significance of hepatoma-specific band of serum gamma-glutamyl transferase. Chin Med J (Engl) 1986; 99:583-6. [PMID: 2879711] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
|
447
|
Xu KC, Meng XY, Shi YC, Ge ZJ, Ye L, Yu ZJ, Yang DM. The diagnostic value of a hepatoma-specific band of serum gamma-glutamyl transferase. Int J Cancer 1985; 36:667-9. [PMID: 2415467 DOI: 10.1002/ijc.2910360608] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Using a vertical slab electrophoretic apparatus loaded with polyacrylamide stage gel plate, we observed a total of II bands of gamma-glutamyl transferase (EC 2.3.2.2,GGT) on a gel plate and designated these GGT I-XI by order of distance beginning at the positive pole. Positive GGT II was found in 81 (90%) of 90 cases of primary hepatic carcinoma (PHC), in 9(90%) of 10 cases of secondary hepatic carcinoma (SHC), and in only 4 (3.1%) of a total of 128 cases of acute and chronic liver disease. There was one case with positive GGT II among 45 cases of cancer of ampulla of Vater, but the possibility of hepatic metastasis could not be excluded. No GGT II was found in a total of 250 healthy persons and 21 pregnant women. PHC patients with negative alpha-fetoprotein (AFP) had a positive GGT II rate of 84.6%, whereas in those with negative GGT II the positive rate for AFP was only 44.4%.
Collapse
|
448
|
Ye L. [Amniography in the diagnosis of hydatidiform mole (a report of 7 cases) (author's transl)]. ZHONGHUA FANG SHE XUE ZA ZHI CHINESE JOURNAL OF RADIOLOGY 1981; 15:298-9. [PMID: 6210511] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
|