8351
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Lawrence LJ, Palmer CJ, Gee KW, Wang X, Yamamura HI, Casida JE. t-[3H]butylbicycloorthobenzoate: new radioligand probe for the gamma-aminobutyric acid-regulated chloride ionophore. J Neurochem 1985; 45:798-804. [PMID: 2993514 DOI: 10.1111/j.1471-4159.1985.tb04063.x] [Citation(s) in RCA: 83] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
t-[3H]Butylbicycloorthobenzoate [( 3H]TBOB; 22 Ci/mmol) was prepared by reductive dechlorination of its 4-chlorophenyl analog with tritium gas. This new radioligand binds reversibly to fresh washed rat brain P2 membranes in 500 mM NaCl plus 50 mM sodium-potassium phosphate buffer (pH 7.4) at 25 degrees C, with 80-90% specific relative to total binding, a KD of 61 +/- 15 nM, and a Bmax of 1.6 +/- 0.5 pmol/mg of protein. [3H]TBOB association with its binding site(s) is monophasic, but its dissociation is biphasic. The binding characteristics of [3H]TBOB are essentially identical to those of t-[35S]butylbicyclophosphorothionate [( 35S]TBPS) with respect to pH dependence, stimulation by anions, regional distribution in the brain, and pharmacological profile. Saturation analyses and dissociation studies further indicate that TBOB and TBPS have a common binding site. However, binding of the two radioligands differs in respect to temperature effects. In contrast to [35S]TBPS, which exhibits negligible binding at 0 degrees C, [3H]TBOB binds to rat brain membranes at 0, 25, and 37 degrees C with similar KD values. [3H]TBOB with its long radioactive half-life and temperature-independent KD is a valuable supplement to [35S]TBPS in further biochemical and pharmacological characterization of the gamma-aminobutyric acid receptor-ionophore complex.
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8352
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Wang X. [A radiologic-pathologic study of 119 cases of peripheral lung cancer]. ZHONGHUA FANG SHE XUE ZA ZHI CHINESE JOURNAL OF RADIOLOGY 1985; 19:208-10. [PMID: 2996848] [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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8353
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Qiu BG, Wang XY. [A clinical study of the relation between thyroxin and the transformation of yang xu symptom-complex in traditional Chinese medicine]. ZHONG XI YI JIE HE ZA ZHI = CHINESE JOURNAL OF MODERN DEVELOPMENTS IN TRADITIONAL MEDICINE 1985; 5:479-80, 451-2. [PMID: 2932250] [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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8354
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Lu XL, Wang XY. [Current status of the methods of prostaglandin analysis]. YAO XUE XUE BAO = ACTA PHARMACEUTICA SINICA 1985; 20:633-40. [PMID: 3914188] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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8355
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Wang XY. [Clinical significance of the position of the apical foramen of the anterior teeth]. ZHONGHUA KOU QIANG KE ZA ZHI [CHINESE JOURNAL OF STOMATOLOGY] 1985; 20:164-6. [PMID: 3866676] [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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8356
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Wang X. [Spectrum analysis of the fluorescence of a hematoporphyrin derivative in the diagnosis of experimental oral cancer and precancer]. ZHONGHUA KOU QIANG KE ZA ZHI [CHINESE JOURNAL OF STOMATOLOGY] 1985; 20:141-3, 190. [PMID: 3866670] [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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8357
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Wang X, Kelly DC. Neutralisation of Trichoplusia ni nuclear polyhedrosis virus with antisera to two forms of the virus. MICROBIOLOGICA 1985; 8:141-9. [PMID: 3892234] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Two forms of a baculovirus, Trichoplusia ni nuclear polyhedrosis virus, one released at the plasma membrane of cells (cell released virus: CRV) and the other derived from polyhedra (polyhedron derived virus: PDV) occur naturally. Antisera raised against the two forms specifically neutralised the homologous form. The envelope proteins of the two forms were shown to be the major proteins involved in serum neutralisation and to be responsible for the antigenic diversity of the virus forms.
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8358
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Wang X, Kelly DC. Baculovirus Replication: Uptake of Trichoplusia ni Nuclear Polyhedrosis Virus Particles by Insect Cells. J Gen Virol 1985. [DOI: 10.1099/0022-1317-66-3-541] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
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8359
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Song BZ, Wang XY. Short-term effect in 135 cases of enuresis treated by wrist-ankle needling. J TRADIT CHIN MED 1985; 5:27-8. [PMID: 3849627] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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8360
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Chevalier J, Pinto da Silva P, Ripoche P, Gobin R, Wang XY, Grossetete J, Bourguet J. Structural and cytochemical differentiation of membrane elements of the apical membrane of amphibian urinary bladder epithelial cells. A label fracture study. Biol Cell 1985; 55:181-90. [PMID: 2939905 DOI: 10.1111/j.1768-322x.1985.tb00424.x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
It is now generally accepted that ADH-induced increase in water permeability in responsive epithelia is associated with the insertion of specific structures in the apical membrane of epithelial cells. Up to now, these structures have only been recognized in freeze-fractured preparations and their chemical nature is still unknown. In this study, we used the label-fracture method (Pinto da Silva and Kan, J. Cell Biol., 99, 1156-1161, 1984) to investigate the distribution of wheat germ agglutinin (WGA) on the luminal plasma membrane of freeze-fractured frog urinary bladder epithelial cells. With label-fracture, the cytochemical markers are seen superimposed with the conventional high resolution image of the E face. Label-fracture of tissue treated for 15 min with WGA and subsequently labeled with colloidal gold coated with ovomucoid showed uniform distribution of gold particles along the exoplasmic fracture face. Stereomicrographs show that the gold label is under the fracture face as it is attached to the outer surface of the membrane. Preincubation of the bladder with WGA for 3 hr induced a segregation of the intramembranous particles of the apical plasma membrane. In this condition, we observed a co-distribution of WGA-gold complexes with the segregated particles on the E face. This indicates that WGA-binding sites are located on glycoproteins which probably comprise the large intramembranous particles dispersed on the exoplasmic faces of freeze-fractured luminal membranes. In contrast, the numerous small intramembrane particles observed on P faces remained evenly distributed even after exposure to WGA and are, therefore, unrelated to WGA receptor sites. After WGA treatment, ADH still induced the formation of aggregates inside the smooth domains. A few WGA-binding sites appeared to be associated to these aggregates.
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8361
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Su XC, Ge JY, Wang XY, Xu SX. Extracranial vertebral artery rheoencephalography in the diagnosis of cerebral arteriosclerosis in middle aged and aged patients. Chin Med J (Engl) 1985; 98:47-9. [PMID: 3924499] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
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8362
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Zsigmond EK, Winnie AP, Barabas E, Wang XY. The inhibitory effect of glycopyrrolate on human plasma-cholinesterase. CANADIAN ANAESTHETISTS' SOCIETY JOURNAL 1985; 32:20-2. [PMID: 3971202 DOI: 10.1007/bf03008533] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
The in vitro inhibitory effect of glycopyrrolate and atropine on the hydrolysis of benzoylcholine at 50.0 microM concentration was determined in the plasma of 6 healthy volunteers at 37 degrees C and at 240 nm by the ultraviolet spectrophotometric method of Kalow. The 50 per cent inhibitory concentration (I50) of glycopyrrolate was found to be 1.0 mM and the I50 of atropine was 0.9 mM. This inhibitory effect of glycopyrrolate and atropine is moderate but its interaction with the in vivo hydrolysis of succinylcholine or that of ester-type of local anaesthetics in patients should be further studied. Although both glycopyrrolate and atropine inhibit PChE to the same extent, glycopyrrolate should be utilized in patients in whom inhibition of brain PChE or central effects ought to be avoided, since glycopyrrolate does not penetrate the blood-brain barrier.
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8363
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Hansbrough JF, Zapata-Sirvent R, Peterson V, Wang X, Bender E, Claman H, Boswick J. Characterization of the immunosuppressive effect of burned tissue in an animal model. J Surg Res 1984; 37:383-93. [PMID: 6492780 DOI: 10.1016/0022-4804(84)90204-x] [Citation(s) in RCA: 47] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
The immunosuppressive effect of burned tissue was studied using a mouse burn model. To evaluate the immunologic status an in vivo measure of cell-mediated immunity (CMI) involving contact sensitization of mice by painting the skin with dinitrofluorobenzene was used; mice were challenged 5 days later by painting the ear with the same antigen. Ear swelling in response to antigenic challenge was used as a quantitative measure of CMI; diminution in ear swelling in treatment mice compared to sensitized, unburned control mice indicated the degree of immunosuppression. A full-thickness steam burn covering 20% body surface ares (BSA) was profoundly immunosuppressive as reflected by ear swelling of 45 to 60% of that found in normal mice; partial thickness burns and burns of 10% BSA extent were not significantly immunosuppressive. Transfer into unburned mice of burned skin equivalent in size to a 20% BSA burn eschar resulted in marked immunosuppression, but transfer of smaller amounts of burned skin, or of larger amounts of unburned skin and normal and burned liver tissue, did not produce immunosuppression. Mice receiving a very high-temperature (300 degrees C), dry burn were only slightly more suppressed than mice receiving a standard steam burn. Normal immunity was preserved in burned mice which received daily application of cerium nitrate to the wound for 7 days, but application of other topical agents commonly used in burn treatment did not preserve immunity. Postburn immunosuppression thus appears related quantitatively to toxic factors in burned skin, and these toxic factors can be abrogated in burned mice by the topical application of cerium nitrate.
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8364
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Wang X. [Preliminary study of the diagnosis of early-stage oral cancer by the hematoporphyrin derivative-fluorescence technic]. ZHONGHUA YI XUE ZA ZHI 1984; 64:594-7. [PMID: 6442586] [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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8365
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Wang X. [The problem of the aged population in China]. REN KOU YAN JIU = RENKOU YANJIU 1984:40-3. [PMID: 12267861] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 04/19/2023]
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8366
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Tang H, Ma FX, Guo QH, Gao HZ, Wang XY. Bladder cancer and radiation damage. Chin Med J (Engl) 1984; 97:663-6. [PMID: 6443298] [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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8367
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Wang X. International Conference on Population concluded with success. CHINA POPULATION NEWSLETTER 1984; 1:11-3. [PMID: 12266992] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 04/19/2023]
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8368
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Wang X. [X-ray diagnosis of malignant meningioma and meningeal sarcoma (an analysis of 23 cases)]. ZHONGHUA FANG SHE XUE ZA ZHI CHINESE JOURNAL OF RADIOLOGY 1984; 18:192-4. [PMID: 6241874] [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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8369
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Kirchhoff J, Wang X, Ghraf R, Ball P, Knuppen R. Interactions of methylestrogens with cytoplasmic and nuclear estrogen receptors in rat pituitary gland, hypothalamus and uterus. Brain Res 1984; 294:354-8. [PMID: 6322922 DOI: 10.1016/0006-8993(84)91049-7] [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]
Abstract
The in vitro affinities to cytoplasmic estrogen receptors of the methylestrogens 2-methylestradiol-17 beta, 4-methylestradiol-17 beta and 4-hydroxy-2-methylestradiol-17 beta, which are useful probes to test the biological importance of 2- or 4-hydroxylation of estradiol-17 beta (catecholestrogen formation), have been determined in hypothalamic, pituitary and uterine tissue of the ovariectomized rat. Moreover, the in vivo capacity of these compounds to translocate estrogen receptors into the cell nucleus of pituitary and uterine tissue has been studied. Methylestrogens exhibited estrogen receptor affinities which were not significantly different from the binding affinity of estradiol-17 beta. When given at a high dose (100 micrograms/animal) their nuclear translocation capacity was equal (4-methylestradiol-17 beta) or even higher (2-methylestradiol-17 beta) than that of estradiol-17 beta. However, at a low dose (5 micrograms/animal) 4-methylestradiol was completely ineffective in both the pituitary gland and the uterus, and 2-methylestradiol-17 beta was less potent than estradiol-17 beta in the pituitary gland.
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8370
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Wang X. [Significance of angiographic visualization of the meningeal branches of the ophthalmic artery in the diagnosis of meningioma--analysis of 52 cases]. ZHONGHUA FANG SHE XUE ZA ZHI CHINESE JOURNAL OF RADIOLOGY 1984; 18:31-4. [PMID: 6236054] [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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8371
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Wang X. [Clear cell carcinoma of the lung--report of 4 cases and review of the literature]. ZHONGHUA JIE HE HE HU XI XI JI BING ZA ZHI = CHINESE JOURNAL OF TUBERCULOSIS AND RESPIRATORY DISEASES 1984; 7:22-3. [PMID: 6468162] [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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8372
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Wang X. [Hereditary progressive sensorineural deafness--report of 30 cases in 12 families]. ZHONGHUA YI XUE ZA ZHI 1983; 63:694-8. [PMID: 6426737] [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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8373
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Wang X, Kelly DC. Baculovirus Replication: Purification and identification of the Trichoplusia ni Nuclear Polyhedrosis Virus-induced DNA Polymerase. J Gen Virol 1983. [DOI: 10.1099/0022-1317-64-10-2229] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
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8374
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Chen MF, Zhang QY, Yao J, Wu ZY, Shen R, Wang XY, Zhang HX, Zhu JG, Zhen ZH, Chen JZ. Treatment of chronic nephritis with tripterygium hypoglaucum. A clinical and experimental study. J TRADIT CHIN MED 1983; 3:219-22. [PMID: 6556408] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/05/2023]
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8375
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Zhang TJ, Du CL, Cheng PF, Wang XY, Xie RL. [Hemorheologic studies of cerebrovascular diseases]. ZHONGHUA NEI KE ZA ZHI 1983; 22:465-8. [PMID: 6653207] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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