7201
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Matsumori A, Wang H, Abelmann WH, Crumpacker CS. Treatment of viral myocarditis with ribavirin in an animal preparation. Circulation 1985; 71:834-9. [PMID: 2982522 DOI: 10.1161/01.cir.71.4.834] [Citation(s) in RCA: 51] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
The therapeutic effects of ribavirin, a broad-spectrum, antiviral agent, on experimental myocarditis caused by encephalomyocarditis (EMC) virus were investigated. Four-week-old DBA/2 mice were inoculated with 10 plaque-forming units (pfu) of EMC virus. Ribavirin in a dose of 100 (group 1, n = 20), 200 (group 2, n = 10), or 400 mg/kg/day (group 3, n = 10) was administered subcutaneously on days 0 to 12 after virus inoculation, and animals were observed for 12 days. Control animals were injected with saline (n = 20). Mice treated with ribavirin survived longer than controls (mean survival 6.7 days for group 1, 7.4 days for group 2, 7.7 days for group 3, and 5.2 days for control; p less than .005). Myocardial virus titers on days 6 to 8 were significantly lower in group 2 (3.24 +/- 0.49 log10pfu/mg; p less than .005) and in group 3 (1.70 +/- 0.65 log10 pfu/mg; p less than .001) compared with controls (4.09 +/- 0.57 log10 pfu/mg). The incidence of gross myocardial lesions was significantly lower in group 1 (13/20, 65%), group 2 (2/10, 20%), and group 3 (0/20, 0%) compared with controls (20/20, 100%) (p less than .05). Histologic examination showed extensive myocardial necrosis and cellular infiltration in untreated groups; there was less infiltration in groups 2 and 3 (p less than .01) and less severe necrosis in group 3 (p less than .01). Thus ribavirin effectively inhibited myocardial virus replication and reduced the inflammatory response and myocardial damage in an experimental preparation of viral myocarditis.
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7202
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Wang H. [Establishment of five human pulmonary carcinoma cell lines and their biologic properties]. ZHONGHUA YI XUE ZA ZHI 1985; 65:208-11. [PMID: 2988714] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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7203
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Xie BZ, Hu GJ, Yuan LX, Wang H, Jiang WD. [Effect of the central action of propranolol on coronary circulation in dogs]. ZHONGGUO YAO LI XUE BAO = ACTA PHARMACOLOGICA SINICA 1985; 6:33-6. [PMID: 3158156] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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7204
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Wang H, Ikeda K, Kihara M, Nara Y, Horie R, Yamori Y. Sodium preference and excretion in spontaneously hypertensive rats on various diets. Clin Exp Pharmacol Physiol 1985; 12:139-44. [PMID: 4006318 DOI: 10.1111/j.1440-1681.1985.tb02316.x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Stroke-prone spontaneously hypertensive rats (SHRSP) and stroke-resistant SHR (SHRSR) exhibited an increased preference for a 2% NaCl solution, relative to water, in comparison with normotensive Wistar-Kyoto (WKY), but the preference was lost quickly in SHRSP with unbroken exposure. Neither a high protein diet (50% fish protein) nor a low protein diet (5% protein) changed the salt water preference in SHRSR and the former abolished the preference more quickly in SHRSP. The fish protein diet, however, increased the ratio of urinary sodium excretion to dietary sodium intake in the first three days of exposure to a high salt intake in all groups. Results from this experiment suggest that an increased dietary protein intake can facilitate sodium excretion and may possibly ameliorate the adverse effect of a high sodium diet.
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7205
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Rosenbloom SB, Carson BS, Wang H, Rosenbaum AE, Udvarhelyi GB. Cerebellopontine angle lipoma. SURGICAL NEUROLOGY 1985; 23:134-8. [PMID: 3871257 DOI: 10.1016/0090-3019(85)90330-1] [Citation(s) in RCA: 33] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Lipomas rarely occur intracranially. Moreover, the cerebellopontine angle is one of the more unusual sites of such hamartomas. Of the 11 reported cases, all but three caused symptoms related to compression of the cranial nerves in the cerebellopontine angle. Only three separate cases have been studied by computed tomography, and in one the fat density was not recognized. This report deals with the clinical presentations, surgical management, and radiologic assessment of these lesions.
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7206
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Wang H, Ikeda K, Kihara M, Nara Y, Horie R, Yamori Y. Effect of dietary urea on blood pressure in spontaneously hypertensive rats. Clin Exp Pharmacol Physiol 1984; 11:555-61. [PMID: 6536416 DOI: 10.1111/j.1440-1681.1984.tb00867.x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
The feeding of a normal diet containing 13.5% urea (in place of protein in a high protein diet) attenuated the development of severe hypertension and decreased the incidence of stroke in spontaneously hypertensive rats (SHR), when 1% NaCl solution was given to them. The urea not only increased urine volume, but also increased urinary sodium excretion in SHR given 1% NaCl for drinking. Although there was no obvious difference in erythrocyte size between the urea and the control groups, there was a significant inverse correlation between plasma urea level and erythrocyte size. These results suggest that a high protein diet reduced blood pressure partly through the diuretic effect of urea, the common metabolite of various proteins.
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7207
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Yan SY, Lu DY, Du M, Li GS, Lin LT, Jin GQ, Wang H, Yang YQ, Xia DQ, Liu AZ. Nuclear transplantation in teleosts. Hybrid fish from the nucleus of crucian and the cytoplasm of carp. SCIENTIA SINICA. SERIES B, CHEMICAL, BIOLOGICAL, AGRICULTURAL, MEDICAL & EARTH SCIENCES 1984; 27:1029-34. [PMID: 6597566] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Hybrid fish are obtained from the combination of nucleus and cytoplasm from two genera of fresh-water teleosts using the technique of nuclear transplantation (i.e. the combination of the nucleus of crucian (Carassius auratus) and the cytoplasm of carp (Cyprinus carpio]. Morphological characteristics of these hybrid fish that have been examined so far indicate that some features such as barbs, pharyngeal teeth, the number of scales along the lateral line, and the number of vertebrae are similar to those of crucian. Some of the hybrid fish grow to normal adult fish.
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7208
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Rasmussen K, Wang H, Johnsen MK, Sørlie DG, Bolz KD. [Clinical consequences of coronary angiography]. TIDSSKRIFT FOR DEN NORSKE LEGEFORENING 1984; 104:514-7. [PMID: 6729789] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
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7209
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Wang H. The formal and the intuitive in the biological sciences. PERSPECTIVES IN BIOLOGY AND MEDICINE 1984; 27:525-542. [PMID: 6473058 DOI: 10.1353/pbm.1984.0012] [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]
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7210
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Suss RA, Udvarhelyi GB, Wang H, Kumar AJ, Zinreich SJ, Rosenbaum AE. Myelography in achondroplasia: value of a lateral C1-2 puncture and non-ionic, water-soluble contrast medium. Radiology 1983; 149:159-63. [PMID: 6611923 DOI: 10.1148/radiology.149.1.6611923] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Because of technical difficulties and diagnostic limitations encountered with other myelographic techniques in patients with achondroplasia, the authors employed a lateral C1-2 puncture and non-ionic, water-soluble contrast medium in 18 achondroplastic patients with spinal compression (21 procedures). This technique proved most appropriate for identifying the upper limit of degenerative osteophytes causing exacerbation of congenital spinal stenosis, which is crucial in planning decompressive surgery. A potentially important additional finding was the presence of degenerative lower cervical spine disease in the majority of patients. There were no serious complications. The authors recommend this technique as safe and effective in achondroplastic patients with severe congenital spinal stenosis.
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7211
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Wang H. [Treatment of tumors of the pineal region by occipital transtentorial operation]. ZHONGHUA YI XUE ZA ZHI 1983; 63:529-31. [PMID: 6418351] [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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7212
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Adler SG, Wang H, Ward HJ, Cohen AH, Border WA. Electrical charge. Its role in the pathogenesis and prevention of experimental membranous nephropathy in the rabbit. J Clin Invest 1983; 71:487-99. [PMID: 6826719 PMCID: PMC436896 DOI: 10.1172/jci110793] [Citation(s) in RCA: 93] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
Abstract
Intravenous cationic bovine serum albumin (BSA, pI > 9.5) induces membranous nephropathy in immunized rabbits. In this study, unimmunized rabbits received intravenous injections of cationic (n = 3) or native (n = 3) or native (n = 3) BSA, followed by ex vivo isolated left renal perfusions with sheep anti-BSA antibody. Capillary wall deposits of IgG and C3 were seen exclusively in the group receiving cationic BSA, confirming an in situ pathogenesis for cationic, BSA-induced membranous nephropathy, and demonstrating the importance of a cationic antigen for its production. We then explored whether membranous nephropathy in this model is prevented by the concomitant injection of protamine sulfate, a filterable, relatively non-immunogenic polycation. An in vitro study demonstrated that protamine sulfate incubated with glomerular basement membrane (GBM) decreased the subsequent binding of radiolabeled cationic BSA (P < 0.05). In vivo, protamine sulfate was shown to bind to anionic sites in the glomerular capillary wall after intravenous injection.Groups of rabbits received 3 wk of daily intravenous injections of cationic BSA alone (n = 15) or cationic BSA and protamine (n = 18). After 2 wk of injection of cationic BSA alone, typical membranous nephropathy developed. Granular deposits of IgG and C3 were present along the GBM associated with subepithelial dense deposits, foot process effacement, and marked albuminuria. Protamine significantly reduced or prevented the formation of deposits (P < 0.001) and in6 of 18 protamine-treated animals, existing deposits decreased or disappeared between 2 and 3 wk of injection. Albuminuria was significantly reduced in protamine-treated animals with a mean of 124+/-55 mg/24 h compared to 632+/-150 mg/24 h in the control group receiving cationic BSA alone. No significant differences between the groups were noted in serum lev9lsof IgG, C3, anti-BSA antibody, or circulating immune complex size. Studies in additional animals (n = 5) given radiolabeled cationic BSA showed that protamine did not alter the clearance of cationic BSA from serum. Control experiments showed that protamine's beneficial effects were not related to its weak anticoagulant property or toits theoretical ability to deplete tissue histamine. The administration of heparin (n = 6) or diphenhydramine (n = 6) had no effect on the development of the epimembranous lesion compared to the group receiving cationic BSA alone. In addition, homogenized whole kidney histamine content was not significantly different in the group receiving cationic BSA alone compared to the group receiving cationic BSA and protamine. This work shows that a cationic BSA-induced glomerular lesion can be produced by a renal perfusion technique involving in situ complex formation and that this process requires a cationic antigen for its development. We believe that the demonstrated beneficial effects of protamine are due to its ability to bind to glomerular anionic sites, and that this electrostatic interaction results in inhibition for the further binding of the cationic antigen, thereby limiting the severity of glomerulonephritis in this model.
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7213
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Wang H. [Establishment of two human pulmonary adenocarcinoma cell lines (LTEP-a-1, LTEP-a-2) and their biologic properties]. ZHONGHUA ZHONG LIU ZA ZHI [CHINESE JOURNAL OF ONCOLOGY] 1983; 5:85-8. [PMID: 6872840] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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7214
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Abstract
We found that the incidence and distribution of conduction system disease simultaneously affecting several levels of the system had been incompletely described. We therefore analysed all patients in whom conduction disease had been diagnosed and a complete electrophysiological study of the conduction system had been made, during a defined period. Patients were classified as to the presence or absence of sinus node disease, and proximal and distal atrioventricular disease. Since our hospital serves a defined population and a large proportion of all patients with conduction disease seen during the period was included, the series probably is representative of conduction disease in general. Twenty-four of the 59 patients had defects at more than one of the three levels (41%). Fifty-five per cent of the patients with sinus node disease had some kind of atrioventricular disease, while 42% of the latter had evidence of sinus node failure. The patients with multilevel disease were characterized by more severe symptoms, higher age and a higher incidence of generalized heart disease than those with single-level disease. The observations fit the concept that conduction system disease in most patients is part of a diffuse disease process progressively involving various parts of the system.
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7215
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Hu X, Feng R, Zheng Z, Liang J, Wang H, Lu J. Hepatic damage in experimental and clinical paragonimiasis. Am J Trop Med Hyg 1982; 31:1148-55. [PMID: 7149101 DOI: 10.4269/ajtmh.1982.31.1148] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023] Open
Abstract
The hepatic damage induced by Paragonimus skrjabini, and the migration route of this species and that of P. westermani, were investigated in a series of animal experiments and in 34 clinical and four autopsy cases of paragonimiasis. The major symptoms and signs of an unique case reported from Sichuan Province included hepatic tenderness, disturbance of hepatic functions, remittent fever, and cough with bloody sputum. Laparotomy revealed marked adhesions surrounding the liver, spleen and duodenum. Diagnosis was made by finding P. skrjabini in a bulla on the abdominal wall about 5 months after the onset of illness. After specific treatment with bithional, body temperature and liver functions returned to normal. Twenty-three of 33 cases independently studied from Fujian Province also showed similar hepatic function disturbance. Autopsy cases showed hepatic chronic eosinophilic abscesses with Charcot-Leyden crystals. Experimentally, P. skrjabini infection caused hepatic damage in all laboratory animals used. The main pathologic changes were initially acute eosinophilic abscesses in the liver, worms being found sometimes in the necrotic cavities of the abscesses; hepatomagaly also occurred. Some cysts containing mature worms were found in the liver of dogs 3-9 months after infection. Numerous eggs were deposited in the cyst walls. The migration route of P. skrjabini was studied in young dogs. Worms appeared in the liver initially on day 3 and reached their highest level on day 14. P. westermani also migrated into liver, but their numbers were less than those of P. skrjabini.
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7216
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Stevens TH, Martin CT, Wang H, Brudvig GW, Scholes CP, Chan SI. The nature of CuA in cytochrome c oxidase. J Biol Chem 1982; 257:12106-13. [PMID: 6288707] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
The isolation and purification of yeast cytochrome c oxidase is described. Characterization of the purified protein indicates that it is spectroscopically identical with cytochrome c oxidase isolated from beef heart. Preparations of isotopically substituted yeast cytochrome c oxidase are obtained incorporating [1,3-15N2]histidine or [beta,beta-2H2]cysteine. Electron paramagnetic resonance and electron nuclear double resonance spectra of the isotopically substituted proteins identify unambiguously at least 1 cysteine and 1 histidine as ligands to CuA and suggest that substantial spin density is delocalized onto a cysteine sulfur in the oxidized protein to render the site Cu(I)--S.
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7217
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Wang H, Gu TH, Gu DG, Wu SW, Zhao GS, Shen JQ, Xie L, Pan XX. [Effect of captopril on blood pressure in various types of hypertensive rats]. YAO XUE XUE BAO = ACTA PHARMACEUTICA SINICA 1982; 17:688-91. [PMID: 6760668] [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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7218
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Zhao TM, Chi ZS, Wang H, Shen MF, Zhou ZJ, Bu KJ, Gu WJ, Liu DZ, Zheng SQ. HLA and diabetes mellitus in Chinese. Chin Med J (Engl) 1982; 95:609-12. [PMID: 6814864] [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
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7219
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7220
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Sheng P, Wang H, Shen Z. Transfer of radiation-induced spins from deoxyribonucleic and thymidylic acids to propyl gallate. SCIENTIA SINICA. SERIES B, CHEMICAL, BIOLOGICAL, AGRICULTURAL, MEDICAL & EARTH SCIENCES 1982; 25:473-84. [PMID: 6285465] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
When calf thymus deoxyribonucleic acid (DNA), propyl gallate (PG) and their five molecular mixtures (with PG content of 1, 2, 5, 10 and 20%) are irradiated with gamma-rays in dry state in vacuum at 296 degrees K, the ESR spectra of all molecular mixtures differ strikingly from those of DNA, but bear a close resemblance to those of PG. The spin yield in the PG contained in these mixtures is two to three orders of magnitude higher than that in the case of PG irradiated separately. Furthermore, on the basis of the relative saturation characteristics of ESR spectra, these molecular mixtures behave more like PG than like DNA. It may be inferred that the radiation-induced spins could be transferred from DNA to PG. With r representing the molar ratio of nucleotides to PG, we have found a good linear correlation between the transfer ratio (TR) and square root of r. One PG molecule could protect at least 68 nucleotides in the duplex DNA chain, and thereby the minimal range of spin transfer is estimated at 115 A. Results obtained from irradiation at 77 degrees K show that PG exerts no protective effect on DNA, so DNA sustains an irreversible damage. It is thought that the spin transfer from DNA to PG is exclusively due to a hydrogen transfer mechanism. We have also demonstrated the transfer of radiation-induced spins from both thermally denatured DNA and TMP to PG. The former process can be ascribed primarily to the hydrogen transfer mechanism, whereas the latter, as in the case of native DNA, exclusively to this mechanism.
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7221
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Organisciak DT, Wang H, Kou AL. Rod outer segment lipid--opsin ratios in the developing normal and retinal dystrophic rat. Exp Eye Res 1982; 34:401-12. [PMID: 6461559 DOI: 10.1016/0014-4835(82)90086-0] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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7222
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Zheng YZ, Wu AD, Gao DZ, Wang H, Xu MY. New medium for cultivating tubercle bacilli. Semiliquid medium with 1% hemolyzed blood. Chin Med J (Engl) 1981; 94:341-4. [PMID: 6788474] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
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7223
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Du SF, Wang H. [Food fiber and diabetes (author's transl)]. SHENG LI KE XUE JIN ZHAN [PROGRESS IN PHYSIOLOGY] 1981; 12:234-8. [PMID: 6280273] [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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7224
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Wang H, Lai BT, Guo YH. [Establishment of human pulmonary squamous cell cancer cell line (LTEP-78) and observation on its biologic properties (author's transl)]. ZHONGHUA ZHONG LIU ZA ZHI [CHINESE JOURNAL OF ONCOLOGY] 1980; 2:241-6. [PMID: 7297395] [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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7225
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Wang H, Gu TH, Gu DG, Wu SW, Cai MD, Qiu XS, Zhao GS, Shen GQ. [Hypotensive effects of 9-o-ethyl lycorenine-HCl (author's transl)]. ZHONGGUO YAO LI XUE BAO = ACTA PHARMACOLOGICA SINICA 1980; 1:30-4. [PMID: 6461172] [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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