351
|
Li JS, Gu SN, Han JM. [Total parenteral nutrition induced cholestatic cholecystitis]. ZHONGHUA WAI KE ZA ZHI [CHINESE JOURNAL OF SURGERY] 1988; 26:98-100, 125-6. [PMID: 3142739] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
|
352
|
Liang HR, Yan WM, Li JS, Yang CS. [Chemical studies of Epimedium wushanense T. S. Ying]. YAO XUE XUE BAO = ACTA PHARMACEUTICA SINICA 1988; 23:34-7. [PMID: 3400473] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
|
353
|
Li JS, Zhou BS, Dutschman GE, Grill SP, Tan RS, Cheng YC. Association of Epstein-Barr virus early antigen diffuse component and virus-specified DNA polymerase activity. J Virol 1987; 61:2947-9. [PMID: 3039183 PMCID: PMC255833 DOI: 10.1128/jvi.61.9.2947-2949.1987] [Citation(s) in RCA: 65] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Abstract
The role of Epstein-Barr virus (EBV) early antigen diffuse component (EA-D) and its relationship with EBV DNA polymerase in EBV genome-carrying cells are unclear, EBV-specified DNA polymerase was purified in a sequential manner from Raji cells treated with phorbol-12,13-dibutyrate and n-butyrate by phosphocellulose, DEAE-cellulose, double-stranded DNA-cellulose, and blue Sepharose column chromatography. Four polypeptides with molecular masses of 110,000, 100,000, 55,000, and 49,000 daltons were found to be associated with EBV-specified DNA polymerase activity. A monoclonal antibody which could neutralize the EBV DNA polymerase activity was prepared and found to recognize 55,000- and 49,000-dalton polypeptides. An EA-D monoclonal antibody, R3 (G. R. Pearson, V. Vorman, B. Chase, T. Sculley, M. Hummel, and E. Kieff, J. Virol. 47:183-201, 1983), was also able to recognize these same two polypeptides associated with EBV DNA polymerase activity. It was concluded that EBV EA-D polypeptides, as identified by R3 monoclonal antibody, are critical components of EBV DNA polymerase.
Collapse
|
354
|
Cui HY, Zhang W, Li J, Liu BY, Li JS, Lin YC, Zhang WH, Wu AR, Liu ZM. [Preliminary study on the nucleic acid hybridization technic in detecting HSV-2 DNA corresponding sequence of cancer tissues of the uterine cervix]. ZHONGHUA ZHONG LIU ZA ZHI [CHINESE JOURNAL OF ONCOLOGY] 1987; 9:342-4. [PMID: 2838236] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
In this paper, 34 samples, 25 from 18 cervical carcinoma patients and 9 from 8 non-cervical carcinoma patients, were assayed using (alpha-32P) dCTP HSV-2 DNA probe and nucleic acid hybridization technic. It was shown that the positive rates of HSV-2 DNA corresponding sequence were 50% (2/4), 36% (5/14) and 12% (1/8) in the in situ cancer, invasive cancer and non-cervical cancer tissues. No HSV was isolated from 7 cancer specimens which showed a positive reaction by nucleic acid hybridization.
Collapse
|
355
|
Nutter LM, Grill SP, Li JS, Tan RS, Cheng YC. Induction of virus enzymes by phorbol esters and n-butyrate in Epstein-Barr virus genome-carrying Raji cells. Cancer Res 1987; 47:4407-12. [PMID: 3038311] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Phorbol esters and n-butyrate (SB) together could induce Epstein-Barr virus (EBV) DNA polymerase and DNase activities in Raji cells (virus nonproducer). Neither 12-O-tetradecanoylphorbol-13-acetate (TPA) nor SB alone could induce these EBV enzyme activities, transcription of the EcoRI C-region or other EBV proteins in Raji cells. The enzyme induction caused by exposure of Raji cells to TPA-SB was the result of the synthesis of virus-specified RNA, and the increase of linear EBV DNA content in Raji cells caused by TPA alone was not sufficient for induction of EBV-enzyme activities. Temporal characteristics of the TPA-SB induction process, but not the phorbol 12,13-dibutyrate-SB induction process, in Raji cells were observed; a critical phase (10-24 h) postphorbol ester treatment in phorbol 12,13-dibutyrate-SB-treated Raji cells which was responsible for the synthesis of virus RNA and enzymes was found. Phospholipase C, which increases intracellular diacylglycerols (and subsequently activates protein kinase C) was able to partially substitute for TPA in the TPA-SB induction for EBV polymerase and DNase activities. Sphingosine, a protein kinase C inhibitor, partially prevented the induction of virus enzyme activities in Raji cells treated with phorbol 12,13-dibutyrate and SB. No apparent changes in the methylation state of EBV DNA (EcoRI C region) were observed when Raji cells were treated with SB and TPA, alone or in combination. These results suggest that induction of EBV polymerase and DNase activities by TPA-SB may involve protein kinase C activation and another factor triggered by SB which together increase transcription of EBV DNA.
Collapse
|
356
|
Zou ZS, Li JS, Liu FK. [Treatment of portal hypertension with bleeding esophageal varices by porta-azygos disconnection with staplers]. ZHONGHUA WAI KE ZA ZHI [CHINESE JOURNAL OF SURGERY] 1987; 25:29-31, 62. [PMID: 3496194] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
|
357
|
Liu YH, Qian MX, Wang XG, Jia J, Wang QN, Jiang YF, Wang RQ, Yan SH, Chen BY, Li JS. Comparative efficacy of praziquantel and its optic isomers in experimental therapy of schistosomiasis japonica in rabbits. Chin Med J (Engl) 1986; 99:935-40. [PMID: 3105969] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
|
358
|
Tan RS, Li JS, Grill SP, Nutter LM, Cheng YC. Demonstration of Epstein-Barr virus-specific DNA polymerase in chemically induced Raji cells and its antibody in serum from patients with nasopharyngeal carcinoma. Cancer Res 1986; 46:5024-8. [PMID: 3019519] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Epstein-Barr virus (EBV) has been found to be associated with nasopharyngeal carcinoma (NPC), and antibodies with high frequency and titer to EBV proteins have been found in sera from NPC patients. Raji cells, an EBV genome-carrying nonproducer cell line, treated with 12-O-tetradecanoylphorbol-13-acetate and n-butyrate induced a unique EBV DNA polymerase which has properties similar to the EBV DNA polymerase induced by 12-O-tetradecanoylphorbol-13-acetate in P3HR-1 cells, an EBV producer cell line. The possible presence of antibodies to this EBV DNA polymerase in NPC patient serum was examined. The mean number of EBV DNA polymerase units neutralized was 380 +/- 168 units/ml serum (mean +/- SD) in 48 sera from patients with NPC, whereas that in the sera from 52 healthy donors was 62 +/- 56 units/ml (p less than 0.01). The EBV DNA polymerase antibody was found to be associated with the immunoglobulin G but not the immunoglobulin A fraction, and its titer was not correlated with the titers against EBV DNase or virus capsid antigen-immunoglobulin A. Whether the EBV DNA polymerase antibody is against the EBV DNA polymerase core protein or its stimulating protein is still being investigated. This study demonstrated the high frequency and high titer of antibody against EBV DNA polymerase in serum from NPC patients and suggested the potential of utilizing this antibody titer to complement other methods for the early diagnosis or prognosis of NPC.
Collapse
|
359
|
Li JS, Han JM, Gu SN. [The surgical treatment of cutaneous duodenal fistulas: the modified intestinal seromuscular patch]. ZHONGHUA WAI KE ZA ZHI [CHINESE JOURNAL OF SURGERY] 1986; 24:520-2, 572. [PMID: 3582035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
|
360
|
Li JS. [Chemical analysis of duzhong (Eucommia ulmoides) bark and leaves]. ZHONG YAO TONG BAO (BEIJING, CHINA : 1981) 1986; 11:41-2. [PMID: 2948723] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
|
361
|
Zheng XL, Jia GL, Li JS. [Percutaneous transluminal coronary angioplasty (PTCA): a report of 4 cases]. ZHONGHUA XIN XUE GUAN BING ZA ZHI 1986; 14:129-31, 190. [PMID: 2946563] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
|
362
|
Dong DX, Hu XM, Liu WJ, Li JS, Jin YC, Tan SG, Chen TQ, Fu JZ, Niu BY, Yu HM. Immunization of neonates with trivalent oral poliomyelitis vaccine (Sabin). Bull World Health Organ 1986; 64:853-60. [PMID: 3493854 PMCID: PMC2490980] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
A study was carried out between November 1981 and April 1982 on the immunological effect of administering trivalent live, oral polio vaccine to 200 mature healthy neonates from Henan Province, China. The initial dose of vaccine was given at 3 days of age, and 2 months thereafter antibodies to poliovirus types 1, 2, and 3, respectively, were detected in 46.7%, 60.7% and 48.6% of the neonates; after the second dose, the levels were 86.9%, 95.3%, and 97.2%, with geometric mean titres of 1:106.2, 1:349.8, and 1:232.5. Almost 100% of neonates exhibited antibodies after the fourth dose of vaccine. Eighty-two percent of the neonates excreted poliovirus for at least a week after the initial dose of vaccine, and this increased to 99% after the second dose. Seroconversion at 4 months of age was similar to that of a group of controls who received their initial dose of vaccine at 2 months of age; however, immunization of neonates induced immunity to poliovirus at the earliest possible age.
Collapse
|
363
|
Cai YL, Lu YN, Li JS. [The use of a flexible carbon-fiber in orthopedic surgery: an analysis of 52 cases]. ZHONGHUA WAI KE ZA ZHI [CHINESE JOURNAL OF SURGERY] 1985; 23:745-7, 782. [PMID: 3830668] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
|
364
|
Li JS. [Multiple organ complications after extensive burns]. ZHONGHUA ZHENG XING SHAO SHANG WAI KE ZA ZHI = ZHONGHUA ZHENG XING SHAO SHANG WAIKF [I.E. WAIKE] ZAZHI = CHINESE JOURNAL OF PLASTIC SURGERY AND BURNS 1985; 1:188-9, 197. [PMID: 3939849] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
|
365
|
Chen BY, Li JS, Yan XH. [Synthesis of 4-nitrodiphenyl ether-4'-thiocarbamides as a potential antischistosomal agent]. YAO XUE XUE BAO = ACTA PHARMACEUTICA SINICA 1985; 20:474-6. [PMID: 4096237] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
|
366
|
Abstract
The effects of the plant toxin abrin on normal mouse embryonic fibroblasts (MEF), an untransformed mouse cell line (NIH 3T3), and two mouse tumor cell lines (LMTK- and S-180) were studied. Measurements of cell growth and colony formation showed that MEF and S-180 cells were more sensitive to abrin intoxication than NIH 3T3 and LMTK- cells. Also, the effects of abrin on the inhibition of [3H]leucine and [3H]thymidine incorporation were more evident in MEF and S-180 cells. The basis for these varying responses to abrin by the four different cells was examined. The number of abrin binding sites per cell was determined from [125I]abrin binding studies: NIH 3T3 and LMTK- cells had significantly fewer abrin binding sites than MEF and S-180 cells. The fate of the [125I]abrin after internalization was examined by gel electrophoresis and autoradiography. A pattern of time-dependent degradation was observed, degradation being more rapid in NIH 3T3 and S-180 cells than in LMTK- and MEF cells. We conclude that the varying responses of different cells to the toxin abrin may be due to several factors, including the relative number of abrin binding sites on the cell surface and the rate of degradation of the toxin once internalized. The results also show that the sensitivities of the cells to abrin do not necessarily correlate with their normal or neoplastic state.
Collapse
|
367
|
Li AH, Li JS, Xie BY. [Comparison of 14-AA-800 and 11-AA amino acids solutions in severe septic patients]. ZHONGHUA WAI KE ZA ZHI [CHINESE JOURNAL OF SURGERY] 1985; 23:199-202, 252. [PMID: 3926420] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
|
368
|
Li JS, Li ZS. [Synthesis of 11-substituted estriols]. YAO XUE XUE BAO = ACTA PHARMACEUTICA SINICA 1985; 20:181-7. [PMID: 4072685] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
|
369
|
Li JS, Li AH. [Metabolic complications during total parenteral]. ZHONGHUA WAI KE ZA ZHI [CHINESE JOURNAL OF SURGERY] 1985; 23:72-4, 125. [PMID: 3921326] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
|
370
|
Li JS, Han JM, Li AH. [Intravenous dacron-cuffed catheter]. ZHONGHUA WAI KE ZA ZHI [CHINESE JOURNAL OF SURGERY] 1985; 23:78-80, 126. [PMID: 3157554] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
|
371
|
Li JS. [Experience in the treatment of 255 cases of external intestinal fistula]. ZHONGHUA YI XUE ZA ZHI 1984; 64:686-8. [PMID: 6442608] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
|
372
|
Pinter A, Honnen WJ, Li JS. Studies with inhibitors of oligosaccharide processing indicate a functional role for complex sugars in the transport and proteolysis of Friend mink cell focus-inducing murine leukemia virus envelope proteins. Virology 1984; 136:196-210. [PMID: 6330991 DOI: 10.1016/0042-6822(84)90259-9] [Citation(s) in RCA: 40] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
The functions of asparagine-linked oligosaccharides on the PrENV protein of Friend mink cell focus-inducing (FrMCF-1) murine leukemia virus were investigated by examining the effect of two inhibitors of different stages of the biosynthetic pathway of these sugar substituents on the synthesis and processing of the viral proteins. Treatment of virus-producing cells with tunicamycin totally inhibited the glycosylation of PrEnv, and resulted in the formation of a nonglycosylated form of the protein of molecular weight 62 kDa. This component was not proteolytically processed inside the cells, and neither it nor any derivative proteins were incorporated into extracellular virions. Treatment of cells with 1-deoxynojirimycin (DNM), which inhibits the cellular glucosidases normally involved in removal of the three glucose residues present on the initially transferred oligosaccharide chains, resulted in the intracellular accumulation of a slightly larger than normal form of PrENV, and decreased levels of cell-associated gp70. Only gp70 was detected on the cell surface. The bulk of the gp70 produced in the presence of the drug was aberrantly glycosylated, and contained decreased levels of complex and increased numbers of high mannose oligosaccharides; almost all of the gp70 molecules however, contained at least one complex sugar chain. Decreased incorporation of both env and gag proteins into extracellular virions was observed, despite the fact that the gag proteins were processed normally intracellularly; in contrast, DNM treatment of Gazdar murine sarcoma virus-infected HTG2 cells, which produce only gag but not env proteins, did not inhibit the release of extracellular virus. Ultrastructural examination of FrMCF-infected cells treated with DNM indicated the presence of large numbers of intracytoplasmic vacuoles, many of which contained viral particles. These studies indicate that the normal maturation process involved in the formation of complex oligosaccharides is necessary to obtain efficient transport to the plasma membrane and proteolysis of PrEnv, and also provide evidence suggesting a role for the env proteins in regulating assembly of gag proteins into virions.
Collapse
|
373
|
Yan XH, Li JS, Chen BY, Qiu ZY. [Sythesis and antischistosomal action of phenithionate and related derivatives of thiocarbamic acid]. YAO XUE XUE BAO = ACTA PHARMACEUTICA SINICA 1982; 17:667-673. [PMID: 7158351] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
|
374
|
Xu ZB, Xiong J, You JY, Zhong HL, Chen WK, Zhao EM, Jiao LE, Li JS. Micro-enzyme-linked-immunosorbent assay in diagnosis of kala-azar. Chin Med J (Engl) 1982; 95:649-52. [PMID: 6817988] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
|
375
|
Sekhon AS, Li JS, Garg AK. Penicillosis marneffei: serological and exoantigen studies. Mycopathologia 1982; 77:51-7. [PMID: 6175904 DOI: 10.1007/bf00588658] [Citation(s) in RCA: 49] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
|
376
|
Li JS. [Repair of abdominal wall defect with pedicled intestinal musculo-serosal patch (author's transl)]. ZHONGHUA WAI KE ZA ZHI [CHINESE JOURNAL OF SURGERY] 1981; 19:629-30. [PMID: 6210514] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
|
377
|
Lin JY, Li JS, Tung TC. Lectin derivatives of methotrexate and chlorambucil as chemotherapeutic agents. J Natl Cancer Inst 1981; 66:523-8. [PMID: 6937708] [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] Open
Abstract
Methotrexate and chlorambucil, each covalently linked to either abrus agglutinin, abrin, ricinus agglutinin, ricin, or concanavalin A, were prepared. A single dose of the derivative injected ip into sarcoma 180-bearing noninbred N:NIH(S) white mice resulted in prolongation of the survival time and was more effective than an equivalent dose of free drug and lectin. Drug-lectin also showed a higher inhibitory effect on the DNA biosynthesis of the tumor cell than did an equivalent dose of the free drug and lectin.
Collapse
|
378
|
Li JS, Wang JH. [Study on environmental noise pollution in Qingdao (author's transl)]. ZHONGHUA YU FANG YI XUE ZA ZHI [CHINESE JOURNAL OF PREVENTIVE MEDICINE] 1981; 15:41-3. [PMID: 7307803] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
|
379
|
Li JS, Xiao PG, Lou ZQ. [Botanical and pharmacognostical studies of the Chinese drug Wei-ling-xian (author's transl)]. YAO XUE XUE BAO = ACTA PHARMACEUTICA SINICA 1980; 15:288-97. [PMID: 6969970] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
|