526
|
Zhang YX. A compound catalytic model with both reversible and two-stage types and its applications in epidemiological study. Int J Epidemiol 1987; 16:619-21. [PMID: 3440674 DOI: 10.1093/ije/16.4.619] [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: 01/05/2023] Open
Abstract
A compound catalytic model with both reversible and two-stage types was studied. Using this model, the age-specific infection rate of hookworm in Changshou region was analysed. The fit of this model was checked by using the chi 2 test. It revealed that the data were fitted reasonably with the present model. The result indicated that this new model could be useful in epidemiological investigation.
Collapse
|
527
|
Xue BG, Zhang YX, Pan GZ. [The changes in pancreatic secretion and enzyme activity in rats after whole body gamma-irradiation]. SHI YAN SHENG WU XUE BAO 1987; 20:437-42. [PMID: 2452543] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
|
528
|
Zhang YX, Watkins NG, Stewart S, Caldwell HD. The low-molecular-mass, cysteine-rich outer membrane protein of Chlamydia trachomatis possesses both biovar- and species-specific epitopes. Infect Immun 1987; 55:2570-3. [PMID: 3666953 PMCID: PMC259943 DOI: 10.1128/iai.55.11.2570-2573.1987] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
We isolated, by hydroxylapatite high-performance liquid chromatography, 14- and 15-kilodalton (kDa), cysteine-rich outer membrane proteins from Chlamydia trachomatis TW-5/OT (serovar B) and LGV-434 (serovar L2), respectively. Monoclonal antibodies (MAbs) were generated against the purified proteins, and their specificities were determined by immunoblotting. MAb B-14k recognized an epitope located on the 14-kDa cysteine-rich protein of the TW-5/OT strain and was immunoreactive with a comigrating 14-kDa protein that was common to all trachoma biovar strains, but it did not react with the 15-kDa, cysteine-rich protein of LGV biovar strains. In contrast, MAb L2-15k, which recognized an epitope located on the 15-kDa protein of the LGV-434 strain, reacted with the 15- and 14-kDa, cysteine-rich proteins of both LGV and trachoma biovar strains, but did not react with related proteins of two Chlamydia psittaci strains. Thus, the low-molecular-mass, cysteine-rich outer membrane proteins of C. trachomatis possess antigenic determinants that are both biovar and species specific. Neither MAbB-14k nor MAb L2-15k was reactive by dot-blot assay when viable chlamydiae were used as test antigens, indicating that the cysteine-rich proteins are not accessible to antibody on the native chlamydial cell surface.
Collapse
|
529
|
Xue BG, Zhang YX, Pan GZ. [A study on the decrease of pancreatic amylase and trypsin activities in the rat after exposure to gamma irradiation]. SHENG LI XUE BAO : [ACTA PHYSIOLOGICA SINICA] 1987; 39:504-9. [PMID: 2455349] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
|
530
|
Sun Y, Chen MH, Zhang YX, Xiao H, Liu HY, Chen X, Zeng Y. [Promoting effect of the Chinese medicinal herb, wikstroemia chamaedaphne and tung oil extracts on carcinoma of the uterine cervix induced by HSV-2 or methylcholanthrene (MCA) in mice]. ZHONGHUA ZHONG LIU ZA ZHI [CHINESE JOURNAL OF ONCOLOGY] 1987; 9:345-7, 20. [PMID: 2838237] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
The promoting effect of the Chinese medicinal herb, Wikstroemia chamaedaphne and Tung oil extracts (WC and HHPA) on carcinoma of uterine cervix induced by HSV-2 or MCA in mice was studied. The results showed that WC and HHPA extracts were not carcinogenic themselves. After carcinogen HSV-2 and MCA treatment, WC and HHPA were added separately. The inducing rates by HSV-2 increased from 7.4% to 21.1% and 26.3%, those by MCA increased from 56.5% to 82.8% and 84.4%. There was a significant difference between the combined groups and groups with HSV-2 or MCA only. The experimental results suggest that these two kinds of extracts play a promoting effect on carcinogenesis. The relation between the carcinogenesis of uterine cervix or nasopharynx and WC or HHPA extracts is discussed.
Collapse
|
531
|
Zhang YX, Yu HQ, Shi JZ, Qi HB, Dong ZH, Xu HY. The therapeutic effect of biphenyl-dimethyl-dicarboxylate (DDB) on certain abnormal laboratory parameters in chronic hepatitis. J TRADIT CHIN MED 1987; 7:137-8. [PMID: 3448395] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
|
532
|
Guo SF, Shao J, Zhang YX. [Fluorosis associated with compression of the spinal cord and cauda equina]. ZHONGHUA WAI KE ZA ZHI [CHINESE JOURNAL OF SURGERY] 1987; 25:228-30, 254. [PMID: 3652880] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
|
533
|
Luo SQ, Zhang YX. [Ultrastructure of brain tumor]. ZHONGHUA ZHONG LIU ZA ZHI [CHINESE JOURNAL OF ONCOLOGY] 1987; 9:115-7. [PMID: 2820679] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Ultrastructure of 15 brain tumors (6 astrocytomas, 5 meningiomas, 2 medulloblastomas and 2 Schwannomas) was observed by transmission electron microscope. In astrocytoma, both the fibrous and protoplasmic astrocytes were found. There were abundant capillaries among the tumor cells. The glia limitans outside the base membrane of certain capillaries were destroyed to different degrees. It indicates that the blood brain barrier may be damaged. Ultrastructurally, medulloblastoma cells may be divided into types I and II. The former was poorly differentiated but the latter was differentiated differently. Meningioma was similar to Schwannoma with complex cell membrane projections. The former had a lot of round mitochondria and filaments in the projections, between which desmosomes were observed. Schwannoma had the typical collagenous fibers among the projections. As to the epithelioid ultrastructure of meningioma, the authors speculate that the majority of meningiomas originate from the mesothelial cells of the arachnoid granulations.
Collapse
|
534
|
Yu HQ, Yang XY, Zhang YX, Shi JZ. Biphenyl-dimethyl dicarboxylate in treating and preventing hepatitis due to drug poisoning. Chin Med J (Engl) 1987; 100:122-3. [PMID: 3109839] [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
|
535
|
Zhang YX, Stewart S, Joseph T, Taylor HR, Caldwell HD. Protective monoclonal antibodies recognize epitopes located on the major outer membrane protein of Chlamydia trachomatis. THE JOURNAL OF IMMUNOLOGY 1987. [DOI: 10.4049/jimmunol.138.2.575] [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 panel of monoclonal antibodies (MAb) was generated against Chlamydia trachomatis serovar B, an etiologic agent of blinding trachoma. The specificities of MAb were determined by dot blot assay by using viable elementary bodies of 13 C. trachomatis serovars and two C. psittaci strains. The dot blot assay was used to identify those antigens that were unique and immunoaccessible on the chlamydial surface. MAb were identified that recognized bi-specific (serovars B and Ba) or subspecies-specific (various B complex serovars) surface-exposed antigenic determinants that were either resistant or sensitive to heat denaturation (56 degrees C, 30 min). All of the MAb recognized the major outer membrane protein as determined by either immunoblotting or radioimmunoprecipitation. MAb specific for immunoaccessible major outer membrane protein epitopes protected mice from toxic death after i.v. injection of B serovar elementary bodies and neutralized the infectivity of the organism for monkey eyes. In contrast, MAb reactive against non-immunoaccessible subspecies- or species-specific major outer membrane protein epitopes or against an immunoaccessible genus-specific epitope located on chlamydial lipopolysaccharide did not protect mice from toxic death or neutralize infectivity of the parasite for monkey eyes. These data suggest that those major outer membrane protein antigenic determinants that are serovar or serogroup specific and are accessible to antibody on the chlamydial cell surface may be useful as a recombinant subunit vaccine for trachoma.
Collapse
|
536
|
Zhang YX, Stewart S, Joseph T, Taylor HR, Caldwell HD. Protective monoclonal antibodies recognize epitopes located on the major outer membrane protein of Chlamydia trachomatis. JOURNAL OF IMMUNOLOGY (BALTIMORE, MD. : 1950) 1987; 138:575-81. [PMID: 3540122] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
A panel of monoclonal antibodies (MAb) was generated against Chlamydia trachomatis serovar B, an etiologic agent of blinding trachoma. The specificities of MAb were determined by dot blot assay by using viable elementary bodies of 13 C. trachomatis serovars and two C. psittaci strains. The dot blot assay was used to identify those antigens that were unique and immunoaccessible on the chlamydial surface. MAb were identified that recognized bi-specific (serovars B and Ba) or subspecies-specific (various B complex serovars) surface-exposed antigenic determinants that were either resistant or sensitive to heat denaturation (56 degrees C, 30 min). All of the MAb recognized the major outer membrane protein as determined by either immunoblotting or radioimmunoprecipitation. MAb specific for immunoaccessible major outer membrane protein epitopes protected mice from toxic death after i.v. injection of B serovar elementary bodies and neutralized the infectivity of the organism for monkey eyes. In contrast, MAb reactive against non-immunoaccessible subspecies- or species-specific major outer membrane protein epitopes or against an immunoaccessible genus-specific epitope located on chlamydial lipopolysaccharide did not protect mice from toxic death or neutralize infectivity of the parasite for monkey eyes. These data suggest that those major outer membrane protein antigenic determinants that are serovar or serogroup specific and are accessible to antibody on the chlamydial cell surface may be useful as a recombinant subunit vaccine for trachoma.
Collapse
|
537
|
Zhang YX, Gong XL. [A complex therapy of electricity and traditional Chinese medicinal hot packs for pains in the extremities. Analysis of 6734 cases]. ZHONG XI YI JIE HE ZA ZHI = CHINESE JOURNAL OF MODERN DEVELOPMENTS IN TRADITIONAL MEDICINE 1986; 6:659-61, 644. [PMID: 2949873] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
|
538
|
Zhang YX. [A simple method for calculating the heritability and its statistical inference in twin births' study of genetic epidemiology]. ZHONGHUA LIU XING BING XUE ZA ZHI = ZHONGHUA LIUXINGBINGXUE ZAZHI 1986; 7:111-4. [PMID: 3742568] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
|
539
|
Zhang YX. [A series of 440 vaginal hysterectomies performed for non-prolapsed uterus]. ZHONGHUA FU CHAN KE ZA ZHI 1985; 20:294-7, 319. [PMID: 4085296] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
|
540
|
Zhang YX. [A compound catalytic model with both simple and reversible types and its applications in disease surveillance]. ZHONGHUA LIU XING BING XUE ZA ZHI = ZHONGHUA LIUXINGBINGXUE ZAZHI 1985; 6:115-8. [PMID: 4016898] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
|
541
|
Zhang YX. [Freeze-etching of Chlamydia trachomatis and its observation using the electron microscope]. WEI SHENG WU XUE BAO = ACTA MICROBIOLOGICA SINICA 1985; 25:81-2. [PMID: 4095989] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
|
542
|
Zhang YX. [Clinical applications of x-ray tomography]. ZHONGHUA FANG SHE XUE ZA ZHI CHINESE JOURNAL OF RADIOLOGY 1984; 18:310-1. [PMID: 6242307] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
|
543
|
Du BY, Zhang YX. [Clinical significance of the lysozyme level in bronchial lavage]. ZHONGHUA JIE HE HE HU XI XI JI BING ZA ZHI = CHINESE JOURNAL OF TUBERCULOSIS AND RESPIRATORY DISEASES 1984; 7:291-2. [PMID: 6532737] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
|
544
|
Zhang YX. [Transitional rib syndrome]. ZHONGHUA WAI KE ZA ZHI [CHINESE JOURNAL OF SURGERY] 1984; 22:551, 574. [PMID: 6532720] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
|
545
|
Yu HQ, Zhang YX, Chen GM, Wang XB. Yiqihuoxue and improvement of electrophoretic abnormalities of protein in chronic hepatitis and cirrhosis of liver. J TRADIT CHIN MED 1984; 4:39-44. [PMID: 6565883] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/05/2023]
|
546
|
Zhang YX. [Experimental study on antitumor effect of an extract derived from Patrinia scabra Bge]. ZHONG XI YI JIE HE ZA ZHI = CHINESE JOURNAL OF MODERN DEVELOPMENTS IN TRADITIONAL MEDICINE 1984; 4:109-11. [PMID: 6235038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
|
547
|
Tong ET, Chen ZC, Wan CC, Li CY, Guo G, Wang HD, Bai M, Zhang YX, Dong LJ. Clinical manifestations, diagnosis and treatment of hypokalemic flabbiness disease. ACTA ACADEMIAE MEDICINAE WUHAN = WU-HAN I HSUEH YUAN HSUEH PAO 1984; 4:202-205. [PMID: 6549351 DOI: 10.1007/bf02857164] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
|
548
|
Zhang YX. [Verification of proposal for evaluation of prophylactic vaccination]. ZHONGHUA LIU XING BING XUE ZA ZHI = ZHONGHUA LIUXINGBINGXUE ZAZHI 1983; 4:365-9. [PMID: 6675862] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
|
549
|
Yu YC, Liu HY, Zhang YX, Fang MY. Human serum IgE assay by reversed passive hemagglutination test. Chin Med J (Engl) 1983; 96:913-6. [PMID: 6426885] [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
|
550
|
Song JF, Fang MY, Zhang YX, Wu AR. [Paper radioimmunosorbent test for determination of human serum total IgE and its clinical application]. ZHONGGUO YI XUE KE XUE YUAN XUE BAO. ACTA ACADEMIAE MEDICINAE SINICAE 1983; 5:107-11. [PMID: 6226392] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
|