851
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Chang CC, Lai FM, Chiueh CC. Effects of calcium on smooth muscles and on the adrenergic neuron blocking action of guanethidine. ARCHIVES INTERNATIONALES DE PHARMACODYNAMIE ET DE THERAPIE 1971; 190:34-46. [PMID: 5102512] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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852
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Abstract
AbstractPartial purification of the lipoxygenase from alfalfa seed was accomplished by fractionation of the protein with (NH4)2SO4, phosphate, heavy metal salts and ultracentrifugation. About 24% of the original activity was recovered. The partially‐purified alfalfa lipoxygenase enzyme was free of hydroperoxide‐decomposing activity and was used to determine the positional specificity of linoleic acid oxidation by alfalfa lipoxygenase. Combined gas liquid chromatography‐mass spectrometry was used to analyze known mixtures of 10‐ and 12‐hydroxystearic acid derivatives and was satisfactory for the quantitative determination of the ratio of each component. This combination was used to analyze mixtures containing position isomers of hydroxy fatty acids without separation of each individual compound by other methods. Hydroperoxides produced from linoleic acid oxidation catalyzed by alfalfa lipoxygenase were converted by sodium borohydride reduction, catalytic hydrogenation and bis(trimethylsilyl)acetamide silylation to their corresponding trimethylsilyl either esters and the positional distribution was studied. The 9‐ and 13‐linoleate hydroperoxides produced by alfalfa lipoxygenase were in equal concentrations (50∶50) whereas the distribution for soybean lipoxygenase was 70% 13‐ and 30% 9‐hydroperoxides.
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853
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Chang CC. LEED optics as electron mirror microscope. THE REVIEW OF SCIENTIFIC INSTRUMENTS 1971; 42:189-191. [PMID: 5542294 DOI: 10.1063/1.1685041] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
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854
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Laurence KA, Chang CC, Hassouna H, Badawy S, Loewit K. Effects of antigonadotrophins on ovarian function. GYNECOLOGIC INVESTIGATION 1971; 2:57-64. [PMID: 5161491 DOI: 10.1159/000301851] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
Immunologic techniques have proven to be useful tools in characterizing the action of pituitary protein hormones on the target organs. Specifically, an antibody to luteinizing hormone can prevent ovulation, delay implantation, or cause fetal resorption depending on the time of administration of the antiserum to female rats. The immunologic interference with ovarian function appears to be associated with the steroidogenesis process during early pregnancy, and with fetal placental function during mid pregnancy in the rat. Progesterone synthesis is diminished, probably by the prevention of luteinizing hormone from stimulating the <i>Δ</i><sup>5</sup>Β hydroxysteroid dehadrogenase within the interstitial tissue of the ovary. In later pregnancy, the antibody combines with specific cells within the placenta, thereby eliminating any placental influence on the ovarian steroidogenic process.
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855
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Chang CC, Nakai K, Hayashi K. Chemical modification of cobratoxin from the venom of Formosan cobra (Naja naja atra). JAPANESE JOURNAL OF MEDICAL SCIENCE & BIOLOGY 1970; 23:357-60. [PMID: 5313270] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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856
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Chang CC, Lu SE, Wang PN, Chuang ST. A comparison of the effects of various sulfhydryl reagents on neuromuscular transmission. Eur J Pharmacol 1970; 11:195-203. [PMID: 4317568 DOI: 10.1016/0014-2999(70)90049-x] [Citation(s) in RCA: 25] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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857
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Kincl FA, Chang CC, Zbuzkova V. Observation on the influence of changing photoperiod on spontaneous wheel-running activity of neonatally pinealectomized rats. Endocrinology 1970; 87:38-42. [PMID: 5462978 DOI: 10.1210/endo-87-1-38] [Citation(s) in RCA: 40] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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858
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Kincl FA, Angee I, Chang CC, Rudel HW. Sustained release hormonal preparations. 9. Plasma levels and accumulation into various tissues of 6-methyl-17 alpha-acetoxy-4,6-pregnadiene-3,20-dione after oral administration or absorption from polydimethylsiloxane implants. ACTA ENDOCRINOLOGICA 1970; 64:508-18. [PMID: 4916445] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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859
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Kincl FA, Sundaram K, Chang CC, Rudel HW. Sustained release hormonal preparations. 8. Diffusion of various steroids from cholesterol pellets. ACTA ENDOCRINOLOGICA 1970; 64:253-64. [PMID: 5468367] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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860
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Lorber A, Chang CC, Masuoka D, Meacham I. Effect of thiols in biological systems on protein sulfhydryl content. Biochem Pharmacol 1970; 19:1551-60. [PMID: 5513941 DOI: 10.1016/0006-2952(70)90143-7] [Citation(s) in RCA: 28] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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861
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Chang CC, Lee C. Studies on the [3H] choline uptake in rat phrenic nerve-diaphragm preparations. Neuropharmacology 1970; 9:223-33. [PMID: 5424001 DOI: 10.1016/0028-3908(70)90071-7] [Citation(s) in RCA: 26] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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862
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Chang CC, Tatum HJ, Kincl FA. The effect of intrauterine copper and other metals on implantation in rats and hamsters. Fertil Steril 1970; 21:274-8. [PMID: 5435750 DOI: 10.1016/s0015-0282(16)37395-2] [Citation(s) in RCA: 75] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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863
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Chang CC. Immunochemical studies on fluoresceinthiocarbamyl and reduced S-carboxymethylated cobrotoxin. J Biochem 1970; 67:343-52. [PMID: 4987431 DOI: 10.1093/oxfordjournals.jbchem.a129258] [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: 01/13/2023] Open
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864
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Chang CC, Kincl FA. Sustained release hormonal preparation. 4. Biologic effectiveness of steroid hormones. Fertil Steril 1970; 21:134-9. [PMID: 5461141 DOI: 10.1016/s0015-0282(16)37328-9] [Citation(s) in RCA: 37] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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865
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Benagiano G, Ermini M, Chang CC, Sundaram K, Kincl FA. Sustained release hormonal preparations. 5. Absorption of 6-methyl-17-alpha-acetoxypregna-4,6-diene-3,20-dione from polydimethylsiloxane implants in vivo. ACTA ENDOCRINOLOGICA 1970; 63:29-38. [PMID: 5467019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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866
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Chang CC, Hayashi K. Chemical modification of the tryptophan residue in cobratoxin. Biochem Biophys Res Commun 1969; 37:841-6. [PMID: 5353093 DOI: 10.1016/0006-291x(69)90968-1] [Citation(s) in RCA: 53] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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867
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Chang CC, Chiueh CC. Modulation of noradrenaline incorporation by nerve activities in the rat submaxillary gland. J Physiol 1969; 203:145-57. [PMID: 5821866 PMCID: PMC1351520 DOI: 10.1113/jphysiol.1969.sp008856] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023] Open
Abstract
1. Rats were anaesthetized with chloralose and prepared for electrical stimulation of the cervical sympathetic trunk. The effect of such stimulation was studied on the incorporation of intravenously infused [(3)H]noradrenaline, [(3)H]adrenaline or [(3)H]dopamine by the submaxillary gland.2. A train of 200 stimuli every min for 30 min at 20/sec increased the total incorporation of [(3)H]noradrenaline by 92% over the unstimulated side of the gland, at 50/sec by about 200% and at 3.3/sec by about 30%. The incorporation of [(3)H]adrenaline and of [(3)H]dopamine was also increased by sympathetic stimulation.3. The increases in unaltered [(3)H]noradrenaline and its metabolites were proportional to the increase in total radioactivity.4. Mean venous outflow from the gland was decreased by 15-30% by the sympathetic stimulation.5. After elimination of extraneuronal binding of noradrenaline by ligation of the common excretory ducts, nerve stimulation still increased incorporation.6. Inhibition of normetanephrine production by pyrogallol did not antagonize the nerve impulse-mediated increase of [(3)H]noradrenaline incorporation. alpha-Methyltyrosine was also without effect.7. Desmethylimipramine and bretylium completely abolished the nerve impulse-mediated increase of [(3)H]noradrenaline incorporation in concentrations which did not affect the control uptake or abolish adrenergic transmission.8. Reserpine, guanethidine and phenoxybenzamine antagonized both the control and nerve impulse-mediated incorporations of [(3)H]noradrenaline.9. The results indicate that nerve impulses modulate the incorporation of transmitter amine at the neuronal membrane. Possible mechanisms for this modulation are discussed.
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868
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Chang CC, Yang CC. Immunochemical studies on cobrotoxin. JOURNAL OF IMMUNOLOGY (BALTIMORE, MD. : 1950) 1969; 102:1437-44. [PMID: 4977608] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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869
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870
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Frick J, Chang CC, Kincl FA. Testosterone plasma levels in adult male rats injected neonatally with estradiol benzoate or testosterone propionate. Steroids 1969; 13:21-7. [PMID: 5764483 DOI: 10.1016/s0039-128x(69)80057-7] [Citation(s) in RCA: 27] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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871
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Chang CC, Kincl FA. Sustained release hormonal preparations. 3. Biological effectivness of 6-methyl-17-alpha-acetoxypregna-4,6-diene-3,20-dione. Steroids 1968; 12:689-96. [PMID: 5726404 DOI: 10.1016/s0039-128x(68)80023-6] [Citation(s) in RCA: 29] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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872
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Abstract
Red beet root discs aerated in potassium phosphate for 2 to 3 days and young spinach leaves actively produce oxalate. A series of labeled compounds was supplied to each of these tissues to determine the extent of conversion to oxalate. Similar results were obtained with the 2 tissues except that in the leaf tissue glyoxylate and glycolate were outstandingly good precursors. Carbon from glucose, acetate, and particularly from some acids of the tricarboxylic acid cycle was recovered in oxalate. Extracts from both tissues were found to contain an enzyme which converts oxaloacetate to oxalate and acetate. The enzyme was partially purified and some of its properties are described. A pathway of oxalate synthesis which does not include glycolate or its oxidase is therefore proposed.
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873
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Yang CC, Chang CC, Hayashi K, Suzuki T, Ikeda K, Hamaguchi K. Optical rotatory dispersion and circular dichroism of cobrotoxin. BIOCHIMICA ET BIOPHYSICA ACTA 1968; 168:373-6. [PMID: 5696903 DOI: 10.1016/0005-2795(68)90164-5] [Citation(s) in RCA: 40] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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874
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Lorber A, Cohen RL, Chang CC, Anderson HE. Gold determination in biological fluids by atomic absorption spectrophotometry: application to chrysotherapy in rheumatoid arthritis patients. ARTHRITIS AND RHEUMATISM 1968; 11:170-7. [PMID: 5645729 DOI: 10.1002/art.1780110207] [Citation(s) in RCA: 68] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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875
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Chang CC, Chiueh CC. Increased uptake of noradrenaline in the rat submaxillary gland during sympathetic nerve stimulation. J Pharm Pharmacol 1968; 20:157-9. [PMID: 4384545 DOI: 10.1111/j.2042-7158.1968.tb09711.x] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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876
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Lorber A, Cutler LS, Chang CC. Serum copper levels in rheumatoid arthritis: relationship of elevated copper to protein alterations. ARTHRITIS AND RHEUMATISM 1968; 11:65-71. [PMID: 5640612 DOI: 10.1002/art.1780110109] [Citation(s) in RCA: 44] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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877
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Lee CY, Chang CC, Chiu TH, Chiu PJ, Tseng TC, Lee SY. Pharmacological properties of cardiotoxin isolated from Formosan cobra venom. NAUNYN-SCHMIEDEBERG'S ARCHIVES OF PHARMACOLOGY 1968; 259:360-74. [PMID: 4235412 DOI: 10.1007/bf00536909] [Citation(s) in RCA: 134] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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878
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Yang CC, Chang CC, Wei HC. Studies on fluorescent cobrotoxin. BIOCHIMICA ET BIOPHYSICA ACTA 1967; 147:600-2. [PMID: 4170320 DOI: 10.1016/0005-2795(67)90023-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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879
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Chang CC, Cheng HC, Chen TF. Does d-tubocurarine inhibit the release of acetylcholine from motor nerve endings? THE JAPANESE JOURNAL OF PHYSIOLOGY 1967; 17:505-15. [PMID: 5300824 DOI: 10.2170/jjphysiol.17.505] [Citation(s) in RCA: 26] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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880
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Chang CC, Chen TF, Cheng HC. On the mechanism of neuromuscular blocking action of bretylium and guanethidine. J Pharmacol Exp Ther 1967; 158:89-98. [PMID: 4293315] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
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881
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Chang CC, Chang JC, Su CY. Studies on the interactions of guanethidine and bretylium with noradrenaline stores. BRITISH JOURNAL OF PHARMACOLOGY AND CHEMOTHERAPY 1967; 30:213-23. [PMID: 6036405 PMCID: PMC1557272 DOI: 10.1111/j.1476-5381.1967.tb02127.x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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882
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883
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Chang CC, Lee CY. Electrophysiological study of neuromuscular blocking action of cobra neurotoxin. BRITISH JOURNAL OF PHARMACOLOGY AND CHEMOTHERAPY 1966; 28:172-81. [PMID: 5972624 PMCID: PMC1510859 DOI: 10.1111/j.1476-5381.1966.tb01883.x] [Citation(s) in RCA: 53] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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884
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Cheng CW, Chou K, Wan BY, Sun ST, Chang CC, Li CA. [The technical modification for manufacturing analgin]. YAO XUE XUE BAO = ACTA PHARMACEUTICA SINICA 1966; 13:369. [PMID: 5952871] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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885
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Ku YC, Chang CC. Tumor cells in the thoracic duct lymph in carcinoma of esophagus and cardia of stomach. CHINESE MEDICAL JOURNAL (PEKING, CHINA : 1932) 1966; 85:258-63. [PMID: 5960773] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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886
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Chang CC. Reversal by amphetamine of the protective effect of bretylium on reserpine-induced depletion of noradrenaline. J Pharm Pharmacol 1965; 17:818-20. [PMID: 4379763 DOI: 10.1111/j.2042-7158.1965.tb07614.x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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887
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Chang CC, Chang JC. A change in the subcellular distribution of noradrenaline in the rat isolated vas deferens effected by nerve stimulation. BRITISH JOURNAL OF PHARMACOLOGY AND CHEMOTHERAPY 1965; 25:758-62. [PMID: 5870461 PMCID: PMC1510620 DOI: 10.1111/j.1476-5381.1965.tb01798.x] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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888
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Chang CC. Immunochemical studies of snake venom. II. Isolation and purification of antibody. TAIWAN YI XUE HUI ZA ZHI. JOURNAL OF THE FORMOSAN MEDICAL ASSOCIATION 1965; 64:634-8. [PMID: 5217739] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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889
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Chen WC, Chu C, Chen TK, Chang CC. [The pulse height analysis (amplitude spectrography) of the electromyography]. SHENG LI XUE BAO : [ACTA PHYSIOLOGICA SINICA] 1965; 28:286-94. [PMID: 5178506] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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