951
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Lee HJ, Berman GM, Ozolins AE. Ventricular aneurysmectomy for the treatment of intractable angina pectoris. Angiology 1977; 28:644-7. [PMID: 900577 DOI: 10.1177/000331977702800908] [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: 12/24/2022]
Abstract
Resection of a large postinfarctional ventricular aneurysm led to termination of intractable angina pectoris in one patient. The patient has been followed for 5 years and remains angina-free, even though aorto-coronary bypass surgery was not performed in this patient. The patient presented no evidence of congestive heart failure, arterial emboli, or cardiac arrhythmia before or after the surgery. Intractable angina alone in the absence of congestive heart failure, systemic embolism, and refractory ventricular tachyarrhythmia may constitute another indication for ventricular aneurysmectomy with or without concomitant aorto-coronary bypass surgery.
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952
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Martin KO, Oh SW, Lee HJ, Monder C. Studies on 21-3H-labeled corticosteroids: evidence for isomerization of the ketol side chain of 11-deoxycorticosterone by a hamster liver enzyme. Biochemistry 1977; 16:3803-9. [PMID: 901753 DOI: 10.1021/bi00636a013] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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953
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Lee HJ, Monder C. Oxidation of corticosteroids to steroidal carboxylic acids by an enzyme preparation from hamster liver. Biochemistry 1977; 16:3810-4. [PMID: 901754 DOI: 10.1021/bi00636a014] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Enzyme activity which catalyzes the oxidation of 11-deoxycorticosterone to 21-oic acids accompanies the "detritiating" enzyme (isomerase) of hamster liver recently isolated by Martin, K. O., et al. ((1977) Biochemistry 16 (preceding paper in this issue)). The metabolites isolated were 20alpha- and 20beta-hydroxy-3-oxo-pregn-4-en-21-oic acid and 3,20-dioxo-pregn-4-en-21-oic acid. When 21-hydroxy[4-14C, 21-3H]pregn-4-en-3,20-dione was the substrate, about half of the tritium was retained in position 20 of the hydroxy acids. The system which catalyzes the conversion of the ketol side chain of corticosteroids to acid metabolites appears to be a cluster of closely related enzymes. As a result of these studies, we believe that the hamster liver enzyme preparation provides a useful model system for studies on the biosynthesis of acid metabolites of the corticosteroids in man.
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954
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Witiak DT, Lee HJ, Hart RW, Gibson RE. Study of trans-cyclopropylbis (diketopiperazine) and chelating agents related to ICRF 159. Cytotoxicity, mutagenicity, and effects on scheduled and unscheduled DNA synthesis. J Med Chem 1977; 20:630-5. [PMID: 857019 DOI: 10.1021/jm00215a003] [Citation(s) in RCA: 24] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
The cytotoxicity, mutagenicity, and DNA damaging potential of trans-cyclopropylbis (diketopiperazine) (3) and chelating agents related to ICRF 159 (1) were examined as a function of concentration and duration of exposure in the Chinese hamster cell line V79A. At a concentration of 10(-3) M, 1 and the trans-cyclopropanediamine tetraacid 8 and ester 7 proved to be cytotoxic and mutagenic. The trans-cyclopropyl analogue 3 of ICRF 159 and acyclic tetraacid 6 were less cytotoxic at all concentrations; analogue 3 exhibited no mutagenic activity at any of the concentrations tested. Compounds 1, 7, and 8, at lethal concentrations, exhibited significantly different mutation frequencies with 7 being sixfold more mutagenic than 8 at the same molar concentration. At 10(-3) M compounds 8 was several times more effective blocking DNA replication than other analogues but did not induce unscheduled DNA synthesis as did 1,3, and 6. With the exception of 8, there was an excellent correlation between mutagenesis and the induction of unscheduled DNA synthesis.
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955
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Abstract
The metabolic fate of the 17beta-ketol side chain of (21-3H) prednisolone was studied with an enzyme preparation from male golden hamster liver. The acidic metabolite of prednisolone was identified by mass spectrometry as 11beta, 17alpha,20epsilon-trihydroxy-3-oxo-1,4-pregnadien-21-oic acid. The enzyme showed substrate specificity, depending on the nature of substituent on the steroid nucleus.
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956
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Lee HJ, Berman GM, Bassett J. Atypical progressive angina pectoris caused by a congenital coronary-pulmonary shunt and coronary atherosclerosis. Angiology 1977; 28:15-8. [PMID: 301364 DOI: 10.1177/000331977702800103] [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: 12/14/2022]
Abstract
A 57-year-old man with atypical progressive angina caused by congenital coronary-pulmonary shunt and coronary atherosclerosis is described. The angina was rather consistently unresponsive to nitroglycerin. Following closure of the shunt and aortocoronary bypass surgery, the patient became asymptomatic and has remained free of angina 2 year postoperatively. Although the congenital anomaly is rare in adults, it may be considered in the differential diagnosis of atypical angina pectoris, particularly when there is either continuous murmur or systolic murmur over the lower parasternal area.
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957
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Park SK, Lee KC, Lee HJ. "High pressure" cerebrospinal fluid rhinorrhea due to parieto-occipital meningioma, a case report. Yonsei Med J 1977; 18:160-5. [PMID: 617250 DOI: 10.3349/ymj.1977.18.2.160] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
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958
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Park SK, Lee KC, Lee HJ. Post-traumatic sympathetic dystrophy--a case report. Yonsei Med J 1977; 18:59-63. [PMID: 617029 DOI: 10.3349/ymj.1977.18.1.59] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
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959
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960
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Abstract
Cadmium supplements (7 5 or 15 mg/day) significantly Increased cadmium concentrations in blood, liver, kidney and muscle in sheep and reduced the concentrations of copper and blood and liver. The small amount of selenium released in the rumen from heavy selenium pellets increased selenium levels in blood, liver, kidney and muscle but did not reduce the concentrations of cadmium In these tissues significantly nor counteract the effect of cadmium on copper storage.
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961
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Lee KH, Kim CS, Lee KC, Kim SC, Lee HJ. Arterio-jugular oxygen difference in severe intracranial lesions. Yonsei Med J 1976; 17:15-20. [PMID: 1031499 DOI: 10.3349/ymj.1976.17.1.15] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
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962
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Kim SH, Lee KH, Kim SC, Chung SS, Lee KC, Lee HJ. Percutaneous cervical radiofrequency cordotomy for intractable pain. Yonsei Med J 1975; 16:72-82. [PMID: 1066872 DOI: 10.3349/ymj.1975.16.2.72] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
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963
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Lee KC, Klee MR, Lee HJ. The effect of strychnine on membrane properties of spinal motoneurons in the cat. Yonsei Med J 1975; 16:1-28. [PMID: 1232708 DOI: 10.3349/ymj.1975.16.2.1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
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964
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Otsubo E, Lee HJ, Deonier RC, Davidson N. Electron microscope heteroduplex studies of sequence relations among plasmids of Escherichia coli. VI. Mapping of F14 sequences homologous to phi 80dmetBJF and phi 80dargECBH bacteriophages. J Mol Biol 1974; 89:599-618. [PMID: 4615161 DOI: 10.1016/0022-2836(74)90038-2] [Citation(s) in RCA: 27] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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965
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Deonier RC, Otsubo E, Lee HJ, Davidson N. Electron microscope heteroduplex studies of sequence relations among plasmids of Escherichia coli. VII. Mapping the ribosomal RNA genes of plasmid F14. J Mol Biol 1974; 89:619-29. [PMID: 4615162 DOI: 10.1016/0022-2836(74)90039-4] [Citation(s) in RCA: 49] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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966
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Otsubo E, Soll L, Deonier RC, Lee HJ, Davidson N. Electron microscope heteroduplex studies of sequence relations among plasmids of Escherichia coli. VIII. The structure of bacteriophage phi 80d-3ilv+su+7, including the mapping of the ribosomal RNA genes. J Mol Biol 1974; 89:631-46. [PMID: 4615163 DOI: 10.1016/0022-2836(74)90040-0] [Citation(s) in RCA: 51] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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967
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Anthony WM, Deonier RC, Lee HJ, Hu S, Otsubo E, Davidson N, Broda P. Electron microscope heteroduplex studies of sequence relations among plasmids of Escherichia coli. IX. Note on the deletion mutant of F, F delta(33-43). J Mol Biol 1974; 89:647-50. [PMID: 4615164 DOI: 10.1016/0022-2836(74)90041-2] [Citation(s) in RCA: 32] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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968
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Otsubo E, Deonier RC, Lee HJ, Davidson N. Electron microscope heteroduplex studies of sequence relations among plasmids of Escherichia coli. IV. The F sequences in F14. J Mol Biol 1974; 89:565-84. [PMID: 4615159 DOI: 10.1016/0022-2836(74)90036-9] [Citation(s) in RCA: 66] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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969
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Lee HJ, Otsubo E, Deonier RC, Davidson N. Electron microscope heteroduplex studies of sequence relations among plasmids of Escherichia coli. V. ilv+ Deletion mutants of F14. J Mol Biol 1974; 89:585-97. [PMID: 4615160 DOI: 10.1016/0022-2836(74)90037-0] [Citation(s) in RCA: 50] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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970
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Pillay VK, Wang F, Gandhi VC, Lee HJ, Dunea G. Uraemia from benign hypertension. S Afr Med J 1974; 48:953-6. [PMID: 4275958] [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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971
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Bradlow HL, Zumoff B, Monder C, Lee HJ, Hellman L. Isolation and identification of four new carboxylic acid metabolites of cortisol in man. J Clin Endocrinol Metab 1973; 37:811-8. [PMID: 4749456 DOI: 10.1210/jcem-37-5-811] [Citation(s) in RCA: 50] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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972
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973
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Angus CW, Lee HJ, Wilson IB. Substrate specificity of hog plasma angiotensin-converting enzyme. BIOCHIMICA ET BIOPHYSICA ACTA 1973; 309:169-74. [PMID: 4350750 DOI: 10.1016/0005-2744(73)90328-8] [Citation(s) in RCA: 23] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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974
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DiGilio MM, Lee HJ, Tatooles CJ, Rosen KM, Rahimtoola SH. Myxosarcoma of the pulmonary valve. Chest 1972; 62:639-42. [PMID: 5082046 DOI: 10.1378/chest.62.5.639] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
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975
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Datta SK, Gandhi VC, Lee HJ, Pillay VK, Dunea G. Granuloma in systemic lupus erythematosus. S Afr Med J 1972; 46:1514-6. [PMID: 4645026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
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