976
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Borum PR, Park JH, Law PK, Roelops RI. Altered tissue carnitine levels in animals with hereditary muscular dystrophy. J Neurol Sci 1978; 38:113-21. [PMID: 702180 DOI: 10.1016/0022-510x(78)90251-4] [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
Low levels of muscle carnitine have been found in patients with Duchenne dystrophy, a case possibly of Becker dystrophy, and limb-girdle syndrome as well as in patients with the recently described muscle carnitine deficiency syndrome. Tissues of the mouse, hamster, and chicken were analyzed to determine whether tissue carnitine levels were altered in the animal models of muscular dystrophy. Significantly higher levels of carnitine were found in dystrophic mouse muscle, but carnitine levels in plasma, liver and heart were normal. Histological changes in the skeletal muscle of dystrophic hamsters were relatively mild, and both skeletal muscle and plasma levels were normal. The liver carnitine level was higher than normal levels. The dystrophic hamster also had an inherited cardiomyopathy, and interestingly its heart carnitine level was much lower than normal. The red muscle of the normal chicken contained 5 times the level of carnitine found in white muscle. The dystrophic chicken had higher than normal levels of carnitine in the white muscle, but normal levels in the red muscle. Although all 3 animal models of muscular dystrophy studied have altered levels of carnitine in some tissue, none of the animal models had the same pattern of altered tissue carnitine levels seen in human patients.
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977
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Wilkerson LS, Perkins RC, Roelofs R, Swift L, Dalton LR, Park JH. Erythrocyte membrane abnormalities in Duchenne muscular dystrophy monitored by saturation transfer electron paramagnetic resonance spectroscopy. Proc Natl Acad Sci U S A 1978; 75:838-41. [PMID: 204936 PMCID: PMC411352 DOI: 10.1073/pnas.75.2.838] [Citation(s) in RCA: 39] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Saturation transfer electron paramagnetic resonance and the spin label 2-(3-carboxypropyl)-4,4-dimethyl-2-tridecyl-3-oxazolidinyloxyl were used to study erythrocytes from patients with Duchenne muscular dystrophy or Becker syndrome and from age-matched normal boys. There were significant differences in the spectral intensities of erythrocytes from Duchenne patients when compared to controls. Spectral intensities increased with time in the former; no such change was observed in the latter. Saturation transfer electron paramagnetic resonance spectra of erythrocytes from patients with Becker syndrome were significantly different from those from Duchenne patients but were not significantly different from normals. These observations suggest the possible usefulness of these techniques in the differential diagnosis of Duchenne muscular dystrophy. Spin label concentration spectral studies suggest that the observed spectral differences between Duchenne patients and controls were due to differential spin exchange phenomena.
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978
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Russell Iii JM, Park JH, Drayson SR. Global monitoring of stratospheric halogen compounds from a satellite using gas filter spectroscopy in the solar occultation mode: correction. APPLIED OPTICS 1977; 16:1479. [PMID: 20168737 DOI: 10.1364/ao.16.001479] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
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979
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Russell Iii JM, Park JH, Drayson SR. Global monitoring of stratospheric halogen compounds from a satellite using gas filter spectroscopy in the solar occultation mode. APPLIED OPTICS 1977; 16:607-612. [PMID: 20168551 DOI: 10.1364/ao.16.000607] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
We have analyzed the gas filter radiometer approach for long-term monitoring of stratospheric HCl, HF, CH(4), and H2O using solar occultation at selected intervals in the 2-6 microm range. Our analysis shows that this instrument technique is feasible. This conclusion is based on a simulation study in which we evaluated the effect of various experiment errors on retrieval accuracy. The instrument errors used were based on measurements made on a breadboard model gas filter radiometer. The results show that HCl and HF can be measured with an rms error of 10% and CH(4), and H2O with an error of 15% over the 10-30-km range.
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980
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Chou TH, Hill EJ, Patnode R, LeQuire V, Roelofs R, Park JH. Penicillamine treatment of hereditary avian muscular dystrophy. Proc R Soc Med 1977; 70 Suppl 3:89-93. [PMID: 122684 PMCID: PMC1543587] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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981
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Park JH. [Nursing implementation and evaluation in nursing process]. TAEHAN KANHO. THE KOREAN NURSE 1976; 15:27-31. [PMID: 1071127] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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982
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Patnode R, Bartle E, Hill EJ, LeQuire V, Park JH. Enzymological studies on hereditary avian muscular dystrophy. J Biol Chem 1976; 251:4468-75. [PMID: 180027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
White and red muscles of normal and genetically dystrophic chickens were compared with regards to activity levels of three soluble enzymes, glyceraldehyde-3-phosphate dehydrogenase, creatine phosphokinase, and acetyl phosphatase. In dystrophic white muscle (pectoral), activity of the two sulfhydryl enzymes, glyceraldehyde-3-phosphate dehydrogenase and creatine phosphokinase, was preferentially lost from the sarcoplasm resulting in decreased specific activities. By contrast, acetyl phosphatase was preferentially retained and showed increased specific activity. Dystrophic white muscle had decreased sulfhydryl content in the soluble proteins, severe reduction in muscle mass, fatty infiltration, and fragmentation of fibers. Red dystrophic muscles (thigh) were minimally involved in accordance with the known sparing of red fibers. Enzyme activities were correlated with histological observations. The results suggested that the disease process in dystrophic white muscle may be related to alterations in the sulfhydryl groups of proteins. The data are correlated with the beneficial effects of our treatment of hereditary avian dystrophy with the sulfhydryl compound, penicillamine (Chou, T.H., Hill, E.J., Bartle, E., Woolley, K., LeQuire, V., Olson, W., Roelofs, R., and Park, J.H. (1975) J. Clin. Invest. 56, 842-849).
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983
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Patnode R, Bartle E, Hill EJ, LeQuire V, Park JH. Enzymological studies on hereditary avian muscular dystrophy. J Biol Chem 1976. [DOI: 10.1016/s0021-9258(17)33319-7] [Citation(s) in RCA: 28] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
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984
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Kinnman J, Chi CH, Park JH. Cysticercosis in otolaryngology. ARCHIVES OF OTOLARYNGOLOGY (CHICAGO, ILL. : 1960) 1976; 102:144-7. [PMID: 1267689 DOI: 10.1001/archotol.1976.00780080066006] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Cysticercosis is not likely to be the first diagnosis the otologist has in mind when regarding tumors in the head and neck area. The fact that this disease may present a diagnostic and therapeutic problem is illustrated by three cases, appearing in the tongue, buccal mucosa, and midline of the neck, respectively. The local finding of a soft nontender mass, the typical calcifications in the soft tissues visible on roentgenograms, and the histopathological findings are described and illustrated. Attention is drawn to the fact that cerebral cysticercosis, which is a very grave disease, may cause tinnitus, nystagmus, and hearing disturbances.
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985
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Park JH. [Administrative structure of nursing affairs and nursing service in Malaysia]. TAEHAN KANHO. THE KOREAN NURSE 1975; 14:17-9. [PMID: 1059839] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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986
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Chou T, Hill EJ, Bartle E, Woolley K, LeQuire V, Olson W, Roelofs R, Park JH. Beneficial effects of penicillamine treatment on hereditary avian muscular dystrophy. J Clin Invest 1975; 56:842-9. [PMID: 1159090 PMCID: PMC301939 DOI: 10.1172/jci108163] [Citation(s) in RCA: 45] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
Hereditary muscular dystrophy in chickens of the New Hampshire strain was treated with penicillamine from the 9th day after hatching to the 425th day. The adult maintenance dose for males was 50 mg/kg per day and for females, 13-65 mg/kg per day. In avian dystrophy, deterioration of the muscle fibers is evidenced in the 2nd mo by an inability of the birds to rise after falling on their backs and by a progressive rigidity of the wings. The drug delayed the onset of symptoms and partially alleviated the debilitating aspects of the disease. Penicillamine produced three major improvements: (a) better righting ability when birds were placed on their backs; (b) greater wing flexibility; (c) and suppression of plasma creatine phosphokinase activity. The results are statistically analyzed and discussed in relationship to Duchenne dystrophy. Normal birds were not affected by penicillamine as judged by these parameters. The rationale for using penicillamine, a sulfhydryl compound with reducing properties, was (a) to attempt to protect essential thiol enzymes in the anabolic and glycolytic pathways against inactivation and (b) to prevent collagen cross-linking and deposition in muscle. Although the precise mechanism of drug action has not been determined. the possible role of penicillamine in mitigating the symptoms of genetic dystrophy in man is under consideration. Further, penicillamine may have a more generalized application i the prevention of contractures in a variety of neuromuscular disorders.
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987
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Hill EJ, Chou TH, Shih MC, Park JH. Covalent binding of 3-pyridinealdehyde nicotinamide adenine dinucleotide and substrate to glyceraldehyde 3-phosphate dehydrogenase. J Biol Chem 1975; 250:1734-40. [PMID: 163256] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Glyceraldehyde 3-phosphate dehydrogenase (D-glyceraldehyde-3-phoshate:nicotinamide adenine dinucleotide oxidoreductase (phosphorylating), EC 1.2.1.12) forms a complex with 3-pyridinealdehyde-NAD which survives precipitation with 7% perchloric acid. The molar ratio bound 3-pyridinealdehyde-NAD to the enzyme is 2.5 to 2.9. Lactate, malate, and alcohol dehydrogenases do not form acid-precipitable complexes with 3-pyridinealdehyde-NAD. 3-Pyridinealdehyde-deamino-NAD or glyceraldehyde 3-phosphate also forms an acid-stable complex with glyceraldehyde 3-phosphate dehydrogenase; however, NAD, 3-acetylpyridine-NAD, or thionicotinamide-NAD does not produce an acid-stable complex. Incubation of the glyceraldehyde 3-phosphate dehydrogenase with glyceraldehyde 3-phosphate, acetyl phosphate, iodoacetic acid, or iodosobenzoate inhibits the formation of the acid-stable complex with 3-pyridinealdehyde-NAD. Glyceraldehyde 3-phosphate or 3-pyridinealdehyde-NAD also prevents carboxymethylation of the active site cysteine-149 by[14-C]iodoacetic acid. These studies indicate that the aldehyde group of 3-pyridinealdehyde-NAD forms a thiohemiacetal linkage with cysteine-149 which is the substrate binding site for the dehydrogenase reaction. These findings may account for the fact that 3-pyridinealdehyde-NAD strongly inhibits the dehydrogenase and esterase activities of 3-pyridinealdehyde-NAD forms a thiohemiacetal linkage with cysteine-149 which is the substrate binding site for the dehydrogenase reaction. These findings may account for the fact that 3-pyridinealdehyde-NAD strongly inhibits the dehydrogenase and esterase activities of glyceraldehyde 3-phosphate dehydrogenase which require reduced cysteine-149. However, the analogue does not inhibit the acetyl phosphates activity of the enzyme for which the active site sulfhydryl residues must be oxidized.
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988
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Hill EJ, Meriwether BP, Park JH. Purification of rabbit muscle glyceraldehyde 3-phosphate dehydrogenase by gel filtration chromatography. Anal Biochem 1975; 63:175-82. [PMID: 163031 DOI: 10.1016/0003-2697(75)90202-x] [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: 12/13/2022]
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989
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Kemp NE, Park JH. Ultrastructure of the enamel layer in developing teeth of the shark Carcharhinus menisorrah. Arch Oral Biol 1974; 19:633-44. [PMID: 4532490 DOI: 10.1016/0003-9969(74)90131-9] [Citation(s) in RCA: 34] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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990
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Oguchi M, Meriwether BP, Park JH. Interaction between adenosine triphosphate and glyceraldehyde 3-phosphate dehydrogenase. 3. Mechanism of action and metabolic control of the enzyme under simulated in vivo conditions. J Biol Chem 1973; 248:5562-70. [PMID: 4353269] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
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991
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Oguchi M, Gerth E, Fitzgerald B, Park JH. Regulation of glyceraldehyde 3-phosphate dehydrogenase by phosphocreatine and adenosine triphosphate. IV. Factors affecting in vivo control of enzymatic activity. J Biol Chem 1973; 248:5571-6. [PMID: 4353270] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
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992
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Francis SH, Meriwether BP, Park JH. Effects of photooxidation of histidine-38 on the acetylphosphatase activity of glyceraldehyde-3-phosphate dehydrogenase. Biochemistry 1973; 12:355-9. [PMID: 4345586 DOI: 10.1021/bi00726a027] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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993
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Francis SH, Meriwether BP, Park JH. Effects of photooxidation of histidine-38 on the various catalytic activities of glyceraldehyde-3-phosphate dehydrogenase. Biochemistry 1973; 12:346-55. [PMID: 4345585 DOI: 10.1021/bi00726a026] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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994
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Park JH. Cytologic effects of anoxia on submandibular glands of neonatal mice. TAEHAN CH'IKKWA UISA HYOPHOE CHI 1972; 10:307-16. [PMID: 4505061] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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995
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996
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Francis SH, Meriwether BP, Park JH. Interaction between adenine nucleotides and 3-phosphoglyceraldehyde dehydrogenase. II. A study of the mechanism of catalysis and metabolic control of the multi-functional enzyme. J Biol Chem 1971; 246:5433-41. [PMID: 4328699] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
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997
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Francis SH, Meriwether BP, Park JH. Interaction between adenine nucleotides and 3-phosphoglyceraldehyde dehydrogenase. I. Inhibition of the hydrolysis of S-acetyl-enzyme intermediate in the esterase activity. J Biol Chem 1971; 246:5427-32. [PMID: 4328698] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
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998
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Lim CY, Chun DJ, Park JH, Choi PP. [Cytomorphological studies on giant cell lesions]. TAEHAN CH'IKKWA UISA HYOPHOE CHI 1971; 9:191-6. [PMID: 5292292] [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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999
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Choi KB, Park JH, Choi BB, Kim CW, Chung TY. Dissolution rates of powdered enamel treated with fluoride. TAEHAN CH'IKKWA UISA HYOPHOE CHI 1971; 9:109-13. [PMID: 5292269] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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1000
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Park JH, Suh MJ. [Clinical nursing care of the burned patient]. TAEHAN KANHO. THE KOREAN NURSE 1970; 9:32-9. [PMID: 5276138] [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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