301
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Kuan JC, Huang TT, Chang HJ, Wang CM. A suspicious malignant hyperthermia--report of one case. MA ZUI XUE ZA ZHI = ANAESTHESIOLOGICA SINICA 1990; 28:235-40. [PMID: 2215113] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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302
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Wang CM, Ohta S, Shinoda M. [Studies on chemical protectors against radiation. XXIX. Protective effects of methanol extracts of various Chinese traditional medicines on skin injury induced by X-irradiation]. YAKUGAKU ZASSHI 1990; 110:218-24. [PMID: 2374094 DOI: 10.1248/yakushi1947.110.3_218] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
In order to investigate useful protective medicines for the relief of skin injury induced by irradiation, 60 methanol extracts of Chinese traditional medicines were used in the test of protective potency on skin injury. ICR male mice at 6 weeks of age were whole-body irradiated with 1100R by using a soft X-ray generator (30 kVp, 10 mA, 190 R/min). Each methanol extract of these medicines was injected intraperitoneally into mice before or after irradiation. The degrees of skin injury were determined by a score system of skin reaction within the observation period from 21st to 40th day after irradiation. Protective potency of each medicine on skin injury was calculated from the maximum mean scores of administrated group and un-administrated group. As a result of these studies, the protective potency was detected in Unsei-in, Kumibinro-to, Keisi-syakuyaku-chimo-to, Keigai-rengyo-to, Gosyuyu-to, Koso-san, Saiko-seikan-to, Syo-kankyo-to, Syo-saiko-to, Syoma-kakkon-to, Sen-kan-meimoku-to, Zokumei-to, Sokei-kakketu-to, Bokuryo-in, Mao-to and Rikkunsi-to by intraperitoneal injection before irradiation. Of these effective medicines, only Unsei-in and Mao-to are shown to have a significant protective effect by intraperitoneal injection after irradiation.
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303
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Wang CM, Ohta S, Shinoda M. [Studies on chemical protectors against radiation. XXVII. Survival effects of methanol extracts of various Chinese traditional medicines on radiation injury]. YAKUGAKU ZASSHI 1989; 109:949-53. [PMID: 2630638 DOI: 10.1248/yakushi1947.109.12_949] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
The survival effect of mice irradiated with a lethal dose of X-ray was studied by use of 60 kinds of Chinese traditional medicines. Methanol extracts of these medicines were prepared, and then each extract injected intraperitoneally into male mice before or after whole-body irradiation. As a result of these studies, the survival effects with Ogi-kentyu-to, Simotu-to, Sessyo-in, Zokumei-to and Boi-ogi-to were observed by intraperitoneal injection before irradiation. Of these effective methanol extracts, only Zokumei-to was shown to have a significant survival effect by intraperitoneal injection after irradiation.
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304
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Ault B, Olney MA, Joyner JL, Boyer CE, Notrica MA, Soroko FE, Wang CM. Pro-convulsant actions of theophylline and caffeine in the hippocampus: implications for the management of temporal lobe epilepsy. Brain Res 1987; 426:93-102. [PMID: 3690322 DOI: 10.1016/0006-8993(87)90428-8] [Citation(s) in RCA: 66] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
The pro-convulsant actions of theophylline and caffeine have been investigated using the hippocampal slice preparation and rats administered kainic acid or Metrazol. Both theophylline and caffeine induced the generation of epileptiform activity in the CA3 region of the hippocampal slice with convulsive dose50 (CD50) values of 3 microM respectively. Kainic acid-induced bursting in hippocampal slices was enhanced by theophylline (0.3-30 microM) and caffeine (1-100 microM). Theophylline induced burst firing in response to electrical stimulation in hippocampal area CA3 but not area CA1. Theophylline (50 mg/kg) strongly potentiated the effect of the limbic convulsant kainic acid in vivo whilst a dose of 200 mg/kg was necessary to significantly lower the threshold dose of Metrazol required to induce generalized convulsions. We conclude that alkylxanthines, probably by antagonizing the effect of endogenous adenosine, exert a pro-convulsant action in the hippocampus which preferentially promotes limbic seizures.
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305
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Ault B, Wang CM, Yawn BC. L-proline depolarizes rat spinal motoneurones by an excitatory amino acid antagonist-sensitive mechanism. Br J Pharmacol 1987; 92:319-26. [PMID: 3676596 PMCID: PMC1853647 DOI: 10.1111/j.1476-5381.1987.tb11326.x] [Citation(s) in RCA: 28] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
1 Isolated spinal cords prepared from neonatal rats were used to examine the effects of L-proline (L-Pro). 2 L-Pro (1-8 mM) depolarized ventral and dorsal roots in a dose-dependent manner with one sixth of the potency of L-glutamate (L-Glu). L-Pro was four times more potent than D-Pro. Prolonged application of L-Pro produced a plateau depolarization of motoneurones with no apparent fade. 3 Omission of calcium ions from the medium potentiated the depolarizing actions of L-Pro, L-Glu and quisqualate. 4 L-Pro was antagonized by concentrations of 2-amino-5-phosphonovalerate (25 microM), gamma-D-glutamylglycine (100 microM) and Mg2+ ions (1 mM) that depressed responses to N-methyl-D-aspartate (NMDA). The NMDA receptor-mediated component of the response to L-Pro was estimated to be 60-70%. 5 These data suggest that L-Pro should be considered as a possible excitatory neurotransmitter and that, because L-Pro is a neutral compound, excitatory amino receptors may not require an agonist to possess two anionic groups and one cationic group.
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306
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Ault B, Gruenthal M, Armstrong DR, Nadler JV, Wang CM. Baclofen suppresses bursting activity induced in hippocampal slices by differing convulsant treatments. Eur J Pharmacol 1986; 126:289-92. [PMID: 3019716 DOI: 10.1016/0014-2999(86)90059-2] [Citation(s) in RCA: 29] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Epileptiform activity was induced in area CA3 of hippocampal slices by superfusion of medium containing 50 microM bicuculline and 3.5 mM K, 50 microM bicuculline and 5 mM K, 50 nM kainic acid and 3.5 mM K, or 7 mM K. Burst potentials were recorded at rates between 5 and 44/min, depending on the convulsant treatment. Baclofen reduced the frequency of burst firing in all slices tested in a dose-dependent manner, with little change in the morphology of individual bursts. Thus baclofen primarily affected the initiation of epileptiform discharges. IC50 values varied between 27 and 500 nM and were positively correlated with the rate of bursting. These experiments indicate that baclofen, at concentrations present in the CSF of patients treated for spasticity, has an anticonvulsant-like effect in the hippocampal formation and suggest that its mode of action is to reduce the excitability of pyramidal cells.
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307
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Abstract
The ability of adenosine and structurally-related compounds to inhibit epileptiform activity induced by bicuculline in the CA3 region of the hippocampal slice of the rat was examined. Bath application of all purinoceptor agonists tested reduced the frequency of generation of burst potentials. Analysis of dose-response curves yielded the following IC50 values: adenosine, 1.5 microM; 2-chloroadenosine, 0.144 microM; 5'-(N-ethyl)carboxamidoadenosine, 30.2 nM; L-phenylisopropyladenosine, 12.1 nM; cyclohexyladenosine, 7.9 nM. Theophylline (30 microM) increased the rate of bursting and antagonized the effect of exogenous adenosine. Dipyridamole (0.03-1 microM) reduced the occurrence of burst firing. In slices untreated with bicuculline, theophylline (30 microM) and adenosine deaminase (10 micrograms ml-1) induced bursting activity. These results demonstrate that purinoceptor agonists can suppress epileptiform activity in the hippocampus and suggest that adenosine may act as an endogenous anticonvulsant.
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308
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Chen ZJ, Chen MY, Wang CM, Wu N, Fang YY, Jiang SC, Zhang SZ, Wang L, Sun BK. [One-stage total auricle reconstruction and reestablishment of hearing power in severe congenital microtia]. ZHONGGUO YI XUE KE XUE YUAN XUE BAO. ACTA ACADEMIAE MEDICINAE SINICAE 1985; 7:117-22. [PMID: 2936496] [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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309
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Xu KY, Fei HM, Vries RR, Leenwen AV, Ma L, Fan LA, Tao MB, Wang CM, Cheng RB, Ye GY. [HLA and leprosy III. Segregation analysis of HLA haplotypes in multicase families of leprosy]. ZHONGGUO YI XUE KE XUE YUAN XUE BAO. ACTA ACADEMIAE MEDICINAE SINICAE 1985; 7:25-30. [PMID: 3158413] [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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310
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Ji BH, Tang QK, Li YL, Chen JK, Zhang JL, Dong LW, Wang CM, Ma JJ, Ye DL. The sensitivity and specificity of fluorescent leprosy antibody absorption (FLA-ABS) test for detecting subclinical infection with Mycobacterium leprae. LEPROSY REV 1984; 55:327-35. [PMID: 6396473] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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311
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Zhang XM, Wang CM, Cen YH, Huo HS, Ba JY, Liu ZT, Zhang XQ. [Clinical observation and preliminary study of termination of early pregnancy by administration of yellow daphne]. SHENG ZHI YU BI YUN = REPRODUCTION AND CONTRACEPTION 1984; 4:42-6. [PMID: 12267336] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 04/19/2023]
Abstract
74 cases of early pregnancy with periods of amenorrhea of 36-69 days from the last menses were terminated by using a single dose intrauterine instillation of Wikstro-Emia Chamaedaphne Meisn Alcohol Solution (WCMAS). According to the dosages used, they were divided into 3 groups: 0.2gm, 0.4gm, and 0.6gm of WCMAS. The efficacy of the different dosages was evaluated. The most successful in the termination of early pregnancy (less than 56 days) was the 0.4gm group, the effective rate being 96.6%, and the complete abortion rate being 93.3%. The average duration of complete abortion in all was 21.3 hours, and the averge duration of vaginal bleeding was 10.9 days. Although amount of bleeding was regarded as a little greater than that of normal menstruation by some patients, yet there were no serious side effects occurring, except that some patients experienced some subjective lower abdominal pain and vomiting. Serum hCG and progesterone were determined by radioimmunoassay technique in 31 cases, and it was found that the hCG and progesterone levels both declined rapidly at 12 hours and fell to 35.5% and 46.4% respectively 24 hours after injection. Under microscopic examinations necrotic degeneration was observed in most of the chorionic villi, and marked necrosis and hemorrhage in the decidua. The granulocytes in the decidua also decreased in amount. 48 cases were followed up recently; no side effects were found and there was no interference with re-pregnancy.
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312
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Ji BH, Chen JK, Wang CM, Xia GA. Hepatotoxicity of combined therapy with rifampicin and daily prothionamide for leprosy. LEPROSY REV 1984; 55:283-9. [PMID: 6492989] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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313
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Wang CM, Nguyen NY, Yonaha K, Robey F, Liu TY. Primary structure of rabbit C-reactive protein. J Biol Chem 1982; 257:13610-5. [PMID: 6754715] [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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314
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Wang CM, Nguyen NY, Yonaha K, Robey F, Liu TY. Primary structure of rabbit C-reactive protein. J Biol Chem 1982. [DOI: 10.1016/s0021-9258(18)33491-4] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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315
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316
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Wang CM, Parker CH, Maxwell RA. Electrophysiological effects of antidepressants on mammalian hearts and crayfish giant axon. J Cardiovasc Pharmacol 1981; 3:101-12. [PMID: 6160339 DOI: 10.1097/00005344-198101000-00009] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Cardiotoxicity is known to occur in patients with or without preexisting cardiac diseases during treatments with the tricyclic antidepressants, amitriptyline and imipramine. The antiarrhythmic action of tricyclics was also demonstrated in clinical studies and in animal experiments. Bupropion, a novel antidepressant, is being studied in man and to date has been found to be effective and devoid of cardiovascular toxicity. This study was intended to show the direct effect of tricyclic antidepressants on excitable membrane and to compare their potential toxicity with bupropion in isolated tissues. In crayfish giant axon, all antidepressants exhibited local anesthetic-like action by reducing the action potential amplitude and maximal rate of upstroke (dv/dt). The tricyclics slowed spontaneous sinus discharges in rat atrium and prolonged the duration of evoked action potential in guinea pig atrium with a concomitant decrease in dv/dt. A quinidine-like action of the tricyclic agents is displayed in the termination of spontaneous depolarization and the suppression of dv/dt of evoked action potential in canine Purkinje fibers. The membrane depressant action of antidepressants resulted in the reduction of dv/dt and increased membrane refractoriness in both atrial and ventricular tissues; excitation is blocked even when resting membrane potential remained fully polarized. The present results confirmed the direct quinidine-like action on cardic tissues, which is probably related to the antiarrhythmic and/or cardiotoxic manifestation in man and animals. On on excitable tissues studied, tricyclic antidepressants are the most potent in blocking membrane excitation, while bupropion is the least toxic on the molar basis.
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317
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Wang CM, Sun TH. East Asia review 1978-79. Taiwan, Republic of China. Stud Fam Plann 1980; 11:343-6. [PMID: 7456112] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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318
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Wang CM, Parker CH. Reassessment of the electrophysiological effects of the antiarrhythmic agent quinidine in canine purkinje fibers. Life Sci 1980; 27:663-70. [PMID: 7412495 DOI: 10.1016/0024-3205(80)90007-7] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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319
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Wang CM, Brinigar WS. A correlation of the visible and Soret spectra of dioxygen- and carbon monoxide-heme complexes and five-coordinate heme complexes with the spectra of oxy-, carboxy-, and deoxyhemoglobins. Biochemistry 1979; 18:4960-77. [PMID: 508726 DOI: 10.1021/bi00589a026] [Citation(s) in RCA: 41] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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320
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Wang CM, James CA, Maxwell RA. Effects of lidocaine on the electrophysiological properties of subendocardial Purkinje fibers surviving acute myocardial infarction. J Mol Cell Cardiol 1979; 11:669-81. [PMID: 480366 DOI: 10.1016/0022-2828(79)90380-8] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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321
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Wang CM, James CA. An analysis of the direct effect of chloridazepoxide on mammalian cardiac tissues and crayfish and squid giant axons: possible basis of antiarrhythmic activity. Life Sci 1979; 24:1357-65. [PMID: 481086 DOI: 10.1016/0024-3205(79)90005-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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322
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Ruprecht A, Wang CM, Rak D. Unsuspected rhinolith. DENTAL JOURNAL 1979; 45:116-7. [PMID: 285863] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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323
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Ruprecht A, Wang CM. Modification of the panorex technique to decrease patient exposure and simplify the splicing of edentulous films. DENTAL JOURNAL 1978; 44:514-6. [PMID: 282143] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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324
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Wang CM, Sun TH. East Asia review, 1976-7: Taiwan. Stud Fam Plann 1978; 9:247-50. [PMID: 734711] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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325
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Yang TS, Shen Cheng CC, Wang CM. A survey of thalidomide embryopathy in Taiwan. TAIWAN YI XUE HUI ZA ZHI. JOURNAL OF THE FORMOSAN MEDICAL ASSOCIATION 1977; 76:546-62. [PMID: 269906] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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