4676
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Liu X, Huang PB, Zou T, Jiang MC. The analysis of the nature of electroacupuncture (ea)of “zusanli” point activating NRM by antidromic stimulation and collision technology. Pain 1987. [DOI: 10.1016/0304-3959(87)91146-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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4677
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Chen QG, Gao FZ, Ke Y, Hu GG, Liu X, Liu J, Luo XM. [Effect of sodium selenite on the chromosomal aberration of V 79 cells induced in vitro by MNNG and MNU]. ZHONGHUA ZHONG LIU ZA ZHI [CHINESE JOURNAL OF ONCOLOGY] 1987; 9:33-5. [PMID: 3297587] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Effect of sodium selenite on chromosomal aberration of V 79 cells induced by MNNG and MNU was studied. Na2SeO3 alone, at the concentration of 10(-7)-10(-4) M, increased the incidence of chromosomal aberration. However, Na2SeO3 at 10(-7)-10(-5) M, having been preincubated with the cells for 4 hours, could reduce the number of cells with chromosomal aberration induced by MNNG. Na2SeO3 at 10(-7)-10(-4) M inhibited mutagenic activity of chromosomal aberration induced by MNU. The same inhibition was observed even sodium selenite was added to the medium simultaneously with this carcinogen. The results indicate that sodium selenite alone, at the concentration range used in this experiment, is an aberration-inducing agent. But when combined with the carcinogen, anti-cancer effect is obtained.
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4678
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Hu GG, Luo XM, Liu J, Liu X, Gu M, Mao BL, Chen ZY, Wang LJ. [Sister chromatid exchanges (SCE), chromosomal aberrations and micronuclei of cultured peripheral lymphocytes in patients with lung cancer, miners and non-mining workers of the tin mine in Yunnan]. ZHONGHUA ZHONG LIU ZA ZHI [CHINESE JOURNAL OF ONCOLOGY] 1987; 9:29-32. [PMID: 3595423] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Determination of SCE frequency, chromosomal aberration and micronucleus rate of cultured peripheral lymphocytes in 32 patients with lung cancer, 33 miners and 40 non-mining workers in Yunnan Tin Mine was carried out. The results showed that the cancer patients had higher SCE incidence, chromosomal aberration and micronucleus rate, the non-mining workers had the least and miners on an intermediate level. There was a significant difference of SCE, chromosomal aberrations and micronucleus rate between patients and non-mining workers (P less than 0.05-0.01). We also found that miners had a significant higher SCE and chromosomal aberration rate but not micronucleus rate as compared with the non-mining workers. We proposed that some carcinogens present in the Yunnan Tin Mine be responsible for the genetic damages in the miners. Chemical drugs may be considered to contribute to the genetic damage in cancer patients who had a tendency toward an increased SCE, chromosomal aberration and micronucleus rate as compared to the miners, though without reaching a statistical significance. We suggested that combination assay of SCE with chromosomal aberration or micronucleus be an useful index for screening of the high risk population and monitoring the chemical drug prevention of lung cancers in Yunnan Tin Mine.
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4679
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Petrou A, Waytena G, Liu X, Ralston J, Wicks G. Photoluminescence study of a dilute two-dimensional electron gas in GaAs-AlxGa1-xAs quantum wells. PHYSICAL REVIEW. B, CONDENSED MATTER 1986; 34:7436-7439. [PMID: 9939417 DOI: 10.1103/physrevb.34.7436] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/11/2023]
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4680
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Lin M, Liu X, Yu DQ, Dou SQ, Zhang YJ, Li QM. [The structure determination of a new alkaloid nauclefiline in Nauclea officinalis]. YAO XUE XUE BAO = ACTA PHARMACEUTICA SINICA 1985; 20:902-5. [PMID: 3841766] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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4681
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Luo XM, Wei HJ, Yang CL, Xing J, Liu X, Qiao CH, Feng YM, Liu J, Liu YX, Wu Q. Bioavailability of selenium to residents in a low-selenium area of China. Am J Clin Nutr 1985; 42:439-48. [PMID: 4036848 DOI: 10.1093/ajcn/42.3.439] [Citation(s) in RCA: 31] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
For 8 wk 5 groups of 10 men each were given 0.5 g/day DL-methionine, 150 micrograms Se/day as sodium selenite with or without methionine or 150 micrograms Se/day as selenomethionine with or without methionine. Twenty subjects received placebo as controls. Initially plasma Se rose more rapidly than RBC Se. Increases in Se levels were significantly greater with selenomethionine than with the selenite supplement. In the placebo and methionine supplemented groups neither plasma nor RBC Se varied significantly over the course of the study. Supplementation with selenium resulted in marked increases in plasma and RBC GSH-Px within 2 and 4 wk, respectively. Plasma and RBC GSH-Px activity did not differ significantly between Se-supplemented groups. These studies suggest that selenomethionine-Se was more effective in raising plasma and RBC Se than was selenite-Se. Methionine supplements may increase the bioavailability of selenium in severely deficient subjects.
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4682
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Lin M, Yu DQ, Liu X, Fu FY, Zheng QT, He CH, Bao GH, Xu CF. [Chemical studies on the quaternary alkaloids of Rauvolfia verticillata (Lour.) Baill. F. ruberocarpa H. T. Chang. mss]. YAO XUE XUE BAO = ACTA PHARMACEUTICA SINICA 1985; 20:198-202. [PMID: 2866657] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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4683
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Zhu B, Liu X. [Effects of injection of morphine into the head of the caudate nucleus on activities of neurons of the nucleus raphe magnus in rats]. ZHONGGUO YAO LI XUE BAO = ACTA PHARMACOLOGICA SINICA 1984; 5:228-31. [PMID: 6240896] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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4684
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Zhu B, Liu X. [Effects of the injection of morphine into the head of the caudate nucleus on the activities of neurons of the nucleus raphe magnus in rats]. ZHONGGUO YAO LI XUE BAO = ACTA PHARMACOLOGICA SINICA 1984; 5:228-31. [PMID: 6242212] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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4685
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Fu FY, Zheng JS, Chen WQ, Qin KS, Jin MY, Liu X, Wang QL, Lu SC. Further experience with praziquantel in schistosoma japonicum infections. Chin Med J (Engl) 1984; 97:47-52. [PMID: 6428832] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
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4686
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Liu X, Lee LF, Sharma JM, Nazerian K. Establishment of lymphoblastoid cell lines from Marek's disease primary tumors. Poult Sci 1983; 62:1902-5. [PMID: 6314315 DOI: 10.3382/ps.0621902] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
Seven lymphoblastoid cell lines were developed from 15 Marek's disease primary lymphomas treated to remove adherent cells (46.7% success rate) and 1 cell line was developed from 15 untreated lymphomas (6.7% success rate). These cell lines are designated as MDCC-RP22 through MDCC-RP29. Tumor materials were from 151(5) x 7(1) chickens infected with either JM-111S clone or the GA-22 clone of Marek's disease virus. Factors contributing to the establishment of cell lines include, in addition to the removal of adherent cells at the initial stage of culture, the periodic adjustment and the concentration of viable cells, including the removal of dead cells. The cell lines bear T-cell surface markers and Marek's disease tumor associated surface antigen (MATSA). MDCC-RP22 and MDCC-RP23 are high virus producers.
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4687
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Ekperigin HE, Fadly AM, Lee LF, Liu X, McCapes RH. Comb lesions and mortality patterns in white leghorn layers affected by Marek's disease. Avian Dis 1983; 27:503-12. [PMID: 6870726] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Marek's disease was diagnosed as the cause of prolonged high mortality in two commercial flocks of white leghorn layers by gross and microscopic examination of affected tissues and by immunofluorescent study of live tumor cells using anti-Marek's disease tumor-associated surface antigen, anti-immunoglobulin M, and monoclonal antibodies. The disease was characterized by swollen, necrotic, lymphomatous combs and mortality that rose above normal at 28 weeks of age, peaked at 35-36 weeks, and returned to normal by 45-46 weeks.
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4688
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Ekperigin HE, Fadly AM, Lee LF, Liu X, McCapes RH. Comb Lesions and Mortality Patterns in White Leghorn Layers Affected by Marek's Disease. Avian Dis 1983. [DOI: 10.2307/1590177] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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4689
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Lee LF, Liu X, Sharma JM, Nazerian K, Bacon LD. A monoclonal antibody reactive with Marek's disease tumor-associated surface antigen. JOURNAL OF IMMUNOLOGY (BALTIMORE, MD. : 1950) 1983; 130:1007-11. [PMID: 6294177] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
An antibody-secreting hybridoma, RPH-6, to Marek's disease tumor-associated surface antigen (MATSA) was produced by somatic-cell hybridization between the mouse myeloma SP2/O-Ag/14 and spleen cells from MSB1 immunized mice. The antibody reacted with 95 to 100% of the cells from eight of 10 chicken MD cell lines and one of two turkey MD cell lines. It did not react with chicken MD cell lines RP1 and SK3, turkey MD cell line RP19, lymphoid leukosis (LL) cell lines, RP9 and RP12, and reticuloendotheliosis virus (REV) cell line RP14. A weak reaction was observed with REV cell line RP13 (10 to 20%), and a very slight reaction with normal chicken spleen cells (1 to 5%). RPH-6 produces immunoglobulin of the IgM class. Cell culture and mouse ascitic fluids have titers of 10(2) and 10(6), respectively, by fluorescent antibody (FA) test against MD tumor cell lines. The antibody did not react with Marek's disease virus (MDV) internal antigen or membrane antigen as detected by indirect FA test on chicken embryo fibroblast cultures grown on coverslips. The 51Cr release assay showed RPH-6 is highly cytotoxic (60% release) only against MD lymphoblastoid cell lines, with antibody prepared from mouse ascites having a cytotoxic titer approaching 10(6). Results from using RPH-6 for differential diagnosis of chicken lymphoid tumors of unknown origin were in complete agreement with those obtained with rabbit anti-MATSA reference serum and pathologic diagnosis.
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4690
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Lee LF, Liu X, Witter RL. Monoclonal antibodies with specificity for three different serotypes of Marek's disease viruses in chickens. JOURNAL OF IMMUNOLOGY (BALTIMORE, MD. : 1950) 1983; 130:1003-6. [PMID: 6184394] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
A total of 50 antibody-secreting hybridoma cells against Marek's disease virus (MDV) and turkey herpesvirus (HVT) have been produced. Eleven hybridomas were used for serotyping a panel of 15 pathogenic and nonpathogenic strains of MDV and HVT, representing three serotypes. The antibodies from the culture medium have fluorescence antibody (FA) titers of up to 100 and those from mouse ascitic fluid have titers ranging from 10(4) to 10(6). Monoclonal antibody T81 is type-common, i.e., it reacts at equal titer with all MDV and HVT tested. Of the remaining 10 antibodies, eight react only with pathogenic and attenuated strains of MDV (presumably serotype 1), one reacts only with nonpathogenic MDV (presumably) serotype 2), and one reacts only with strains of HVT (presumably serotype 3). Two hybridomas belong to IgG2a and IgG2b subclasses, respectively, and the remaining nine belong to IgG1 subclass. None of the antibodies specific for MDV strains reacted with homologous viruses in serum neutralization (SN), agar gel precipitin (AGP), or membrane immunofluorescence tests. Antibody L78, which is specific for HVT, was reactive with its homologous virus in the SN test; antibody from the culture medium showed an SN titer of 10 and that from mouse ascites a titer of 10,000. None of the antibodies specific for MDV or HVT reacted with other avian or mammalian herpesviruses, avian leukosis viruses (ALV), reticuloendotheliosis viruses (REV), or Marek's disease tumor-associated surface antigen (MATSA) expressed in a lymphoblastoid cell line, MDCC-MSB-1.
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4691
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Lee LF, Liu X, Witter RL. Monoclonal antibodies with specificity for three different serotypes of Marek's disease viruses in chickens. THE JOURNAL OF IMMUNOLOGY 1983. [DOI: 10.4049/jimmunol.130.2.1003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Abstract
A total of 50 antibody-secreting hybridoma cells against Marek's disease virus (MDV) and turkey herpesvirus (HVT) have been produced. Eleven hybridomas were used for serotyping a panel of 15 pathogenic and nonpathogenic strains of MDV and HVT, representing three serotypes. The antibodies from the culture medium have fluorescence antibody (FA) titers of up to 100 and those from mouse ascitic fluid have titers ranging from 10(4) to 10(6). Monoclonal antibody T81 is type-common, i.e., it reacts at equal titer with all MDV and HVT tested. Of the remaining 10 antibodies, eight react only with pathogenic and attenuated strains of MDV (presumably serotype 1), one reacts only with nonpathogenic MDV (presumably) serotype 2), and one reacts only with strains of HVT (presumably serotype 3). Two hybridomas belong to IgG2a and IgG2b subclasses, respectively, and the remaining nine belong to IgG1 subclass. None of the antibodies specific for MDV strains reacted with homologous viruses in serum neutralization (SN), agar gel precipitin (AGP), or membrane immunofluorescence tests. Antibody L78, which is specific for HVT, was reactive with its homologous virus in the SN test; antibody from the culture medium showed an SN titer of 10 and that from mouse ascites a titer of 10,000. None of the antibodies specific for MDV or HVT reacted with other avian or mammalian herpesviruses, avian leukosis viruses (ALV), reticuloendotheliosis viruses (REV), or Marek's disease tumor-associated surface antigen (MATSA) expressed in a lymphoblastoid cell line, MDCC-MSB-1.
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4692
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Lee LF, Liu X, Sharma JM, Nazerian K, Bacon LD. A monoclonal antibody reactive with Marek's disease tumor-associated surface antigen. THE JOURNAL OF IMMUNOLOGY 1983. [DOI: 10.4049/jimmunol.130.2.1007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Abstract
An antibody-secreting hybridoma, RPH-6, to Marek's disease tumor-associated surface antigen (MATSA) was produced by somatic-cell hybridization between the mouse myeloma SP2/O-Ag/14 and spleen cells from MSB1 immunized mice. The antibody reacted with 95 to 100% of the cells from eight of 10 chicken MD cell lines and one of two turkey MD cell lines. It did not react with chicken MD cell lines RP1 and SK3, turkey MD cell line RP19, lymphoid leukosis (LL) cell lines, RP9 and RP12, and reticuloendotheliosis virus (REV) cell line RP14. A weak reaction was observed with REV cell line RP13 (10 to 20%), and a very slight reaction with normal chicken spleen cells (1 to 5%). RPH-6 produces immunoglobulin of the IgM class. Cell culture and mouse ascitic fluids have titers of 10(2) and 10(6), respectively, by fluorescent antibody (FA) test against MD tumor cell lines. The antibody did not react with Marek's disease virus (MDV) internal antigen or membrane antigen as detected by indirect FA test on chicken embryo fibroblast cultures grown on coverslips. The 51Cr release assay showed RPH-6 is highly cytotoxic (60% release) only against MD lymphoblastoid cell lines, with antibody prepared from mouse ascites having a cytotoxic titer approaching 10(6). Results from using RPH-6 for differential diagnosis of chicken lymphoid tumors of unknown origin were in complete agreement with those obtained with rabbit anti-MATSA reference serum and pathologic diagnosis.
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4693
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Liu X, Harrison KS, Wagner HN. Measurement of left ventricular ejection fraction with ionic 113mIn and a cardiac probe. EUROPEAN JOURNAL OF NUCLEAR MEDICINE 1982; 7:410-2. [PMID: 7128630 DOI: 10.1007/bf00256820] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
Left ventricular ejection fraction (LVEF) was measured with a cardiac probe (Nuclear Stethoscope, Bios Inc., Valhalla, New York) and 113mIn in 28 normal subjects and 86 patients with coronary artery disease (CAD). In 20 normal subjects 99mTC-RBCs were compared with 113mIn which binds to transferrin after IV injection. With 99mTc-RBCs, average LVEF was 57 +/- 7% (1 SD); with 113mIn, average LVEF was 55 +/- 8% (N.S.). Sequential measurements at different times over 60 min revealed good reproducibility. Comparison of LVEFs obtained using 99mTc-RBCs with a gamma camera and cardiac probe revealed a good correlation. The correlation coefficients were 0.92 in 25 patients with CAD and 0.95 in 10 patients with LV wall motion abnormalities. The LVEF obtained using a cardiac probe and 113mIn increased in 28 normals from 57 +/- 9% to 64 +/- 13% (P less than 0.001) during handgrip exercise, while the LVEF decreased from 45 +/- 9% to 41 +/- 10% (P less than 0.01) in patients with acute myocardial infarction 4-7 weeks after episode, from 48 +/- 11 to 40 +/- 12% (P less than 0.001) in patients with old myocardial infarction, and from 52 +/- 9 to 42 +/- 9% (P less than 0.001) in patients with angina pectoris. The cardiac probe and 113mIn provide a useful alternate means of determining left ventricular dysfunction in facilities where 99mTc and a gamma camera computer system are not readily available.
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4694
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Wu GY, Wang SW, Wang HY, Liu X. [The preparation of polysomes and natural RNase inhibitor from rat liver]. ZHONGGUO YI XUE KE XUE YUAN XUE BAO. ACTA ACADEMIAE MEDICINAE SINICAE 1982; 4:137-40. [PMID: 6215135] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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4695
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Harrison KS, Liu X, Han ST, Camargo EE, Wagner HN. Evaluation of a miniature CdTe detector for monitoring left ventricular function. EUROPEAN JOURNAL OF NUCLEAR MEDICINE 1982; 7:204-6. [PMID: 7094922 DOI: 10.1007/bf00256464] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
A miniature CdTe probe interfaced to a microcomputer was used to measure left ventricular ejection fraction (LVEF) in 25 patients. LVEF obtained with the CdTe module, in the beat-to-beat mode, or the integrated gated mode agreed well with LVEF obtained with a gamma camera (r = 0.80; r = 0.82 respectively). Similarly, LVEF by CdTe probe agreed with LVEF obtained by gated equilibrium studies performed with a computerized NaI probe. The CdTe probe can provide comparable measurement of LVEF at a fraction of the cost of a camera-computer system and, being small and lightweight, the CdTe probe is adaptable for monitoring patients in intensive care facilities.
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4696
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Fang QC, Lin M, Weng QM, Zhu CD, Liu X. [Alkaloids of Corydalis--studies on alkaloids of four species of Corydalis from Qinghai plateau (author's transl)]. YAO XUE XUE BAO = ACTA PHARMACEUTICA SINICA 1981; 16:798-800. [PMID: 7336944] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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4697
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Abstract
Psychiatry in traditional Chinese medicine had a long evolution, but is now under re-evaluation. Modern psychiatry in China is based on Western psychiatry, and has a history of less than one hundred years since the first lunatic asylum was set up in Guangzhou (Canton) in 1898 (1, 2, 3) and the first generation of Chinese psychiatrists was trained by an American psychiatrist, Dr Lyman, in Peking Union Medical College, in the 1930s. The present paper is a brief introduction to psychiatry in traditional Chinese medicine.
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4698
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Abstract
Sichuan is the biggest province of the People's Republic of China, with a broad area of over 560 thousand square km and a population of over 90 million people. The central portion of it is a big basin about 200 thousand square km in area, surrounded by many mountains with average altitude between 1,000 and 3,000 m above sea level. About 90 per cent of the population of the province lives in this area. The west portion of the province, called West Sichuan Plateau with average altitude of over 3,000 m, is relatively unpopulated. According to a census of a district of Zigong in 1973, 39.2 per cent of the population was below age 15 and 4.3 per cent above age 65. [In Britain (1975) the corresponding figures were 25 per cent and 14 per cent—Editor].
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4699
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Qi TQ, Liu X, Yand YF. [Repression on the biosynthesis of enzymes involved in tryptophan synthetic pathway by chuangxinmycin (author's transl)]. ZHONGGUO YI XUE KE XUE YUAN XUE BAO. ACTA ACADEMIAE MEDICINAE SINICAE 1980; 2:32-7. [PMID: 6449301] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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