601
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Baker RD, Snider GW, Leipold HE, Johnson JL. Embryo transfer tests for bovine syndactyly. Theriogenology 1980; 13:87. [PMID: 16725457 DOI: 10.1016/0093-691x(80)90017-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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602
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Johnson JL. Determining organizational opportunities and strategies. A REPORT OF THE ... NATIONAL FORUM ON HOSPITAL AND HEALTH AFFAIRS. NATIONAL FORUM ON HOSPITAL AND HEALTH AFFAIRS 1979:84-106. [PMID: 10299639] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/12/2023]
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603
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Cramer SP, Johnson JL, Rajagopalan KV, Sorrell TN. Observation of 17O effects on MoV EPR spectra in sulfite oxidase, xanthine dehydrogenase, and MoO(SC6H5)4-. Biochem Biophys Res Commun 1979; 91:434-9. [PMID: 229850 DOI: 10.1016/0006-291x(79)91540-7] [Citation(s) in RCA: 40] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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604
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Marler RJ, Howard DR, Morris PG, Johnson JL. Rabies in a horse. J Am Vet Med Assoc 1979; 175:293-4. [PMID: 500459] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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605
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Stalling DL, Huckins JN, Petty JD, Johnson JL, Sanders HO. An expanded approach to the study and measurement of PCBs and selected planar halogenated aromatic environmental pollutants. Ann N Y Acad Sci 1979; 320:48-59. [PMID: 110199 DOI: 10.1111/j.1749-6632.1979.tb56592.x] [Citation(s) in RCA: 35] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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606
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Booth SJ, Van Tassell RL, Johnson JL, Wilkins TD. Bacteriophages of Bacteroides. REVIEWS OF INFECTIOUS DISEASES 1979; 1:325-36. [PMID: 398578 DOI: 10.1093/clinids/1.2.325] [Citation(s) in RCA: 43] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Sixty-eight bacteriophages specific for nine species (DNA homology groups) of Bacteroides were isolated from sewage. Four distinct morphological types were isolated, three of which had not previously been described. Attempts to use these phages to transduce Bacteroides fragilis were unsuccessful. A total of 91 phage-susceptible strains of Bacteroides were used with these phages in a study of the feasibility of developing a scheme for identification of Bacteroides species. Blind trials were performed with 10 B. fragilis-specific phages and a collection of over 200 bacterial strains, including 144 strains of B. fragilis. Of the strains of B. fragilis, 78% were identified correctly within 24 hr. A phage-carrier state, or pseudolysogeny, was observed with most of the phage-host systems, and this state was studied in detail with B. fragilis phage Bf-1. The presence of a thick capsule around some cells in a pure culture of a host strain appears to render these cells resistant to phage infection, thus perpetuating the carrier state. It is suggested that such capsules may play a role in the virulence of strains of Bacteroides.
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607
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Johnson JL. Impact of change on food service department: the pyramid of change. JOURNAL OF THE CANADIAN DIETETIC ASSOCIATION 1979; 40:20-3. [PMID: 10246329] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/12/2023]
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608
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Prickett C, Johnson JL. Assessing opacification and flow rates of contrast media in neonate and pediatric cardiac catheterization. Angiology 1978; 29:817-24. [PMID: 727562 DOI: 10.1177/000331977802901105] [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
The accuracy and advantages of determining the flow rates of opaque media in catheters used in the infant and pediatric age group is essential in obtaining proper opacification with minimum toxicity to the patient. Flow rates expressed as cubic centimeters per second and grams of iodine per second were determined by using representative standard pediatric catheters in various sizes and lengths. Three representative opaque medias were used to determine these findings. Although present-day injector pumps are frequently calibrated in delivery rates, they cannot be applied directly to the cardiac catheters usually used with infants and small children.
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609
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Johnson JL. Corrupting the American physician. DELAWARE MEDICAL JOURNAL 1978; 50:433-5. [PMID: 689216] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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610
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Johnson JL. Corrupting the American physician. FORUM ON MEDICINE 1978; 1:12-3. [PMID: 10307476] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/12/2023]
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611
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Johnson JL. The compensation of pathologists. PATHOLOGIST 1978; 32:296-9. [PMID: 10307296] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/12/2023]
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612
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Johnson JL. The excitant amino acids glutamic and aspartic acid as transmitter candidates in the vertebrate central nervous system. Prog Neurobiol 1978; 10:155-202. [PMID: 213815 DOI: 10.1016/0301-0082(78)90002-3] [Citation(s) in RCA: 132] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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613
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Johnson JL, Rajagopalan KV. The interaction of arsenite with the molybdenum center of chicken liver xanthine dehydrogenase. BIOINORGANIC CHEMISTRY 1978; 8:439-44. [PMID: 210844 DOI: 10.1016/s0006-3061(00)80278-1] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Inactivation of chicken liver xanthine dehydrogenase by arsenite is reflected in the molybdenum electron paramagnetic resonance signal at g = 1.97. The arsenite spectrum shows additional splittings and considerable broadening yet remains comparable to the native in total intensity. Further subtle alterations of the molybdenum signal of arsenite-treated enzyme are seen in the presence of purine-type substrates or inhibitors.
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614
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Wallack MK, Brown AS, Rosato EF, Rubin S, Johnson JL, Rosato FE. Serum fucose as a monitor for recurrent malignancy. J Surg Oncol 1978; 10:39-44. [PMID: 628216 DOI: 10.1002/jso.2930100107] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Serum fucose determinations were performed on 19 patients with "stable" or "inactive" malignancies, 33 patients with "active" malignancies, and 14 "normals." A significant difference in the values between "normal" and "stable" patients and those with "active" cancer is shown. A role for this relatively simple serological test for diagnosing and following metastatic cancer is suggested.
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615
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Shih VE, Abroms IF, Johnson JL, Carney M, Mandell R, Robb RM, Cloherty JP, Rajagopalan KV. Sulfite oxidase deficiency. Biochemical and clinical investigations of a hereditary metabolic disorder in sulfur metabolism. N Engl J Med 1977; 297:1022-8. [PMID: 302914 DOI: 10.1056/nejm197711102971902] [Citation(s) in RCA: 149] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Study of a 4 1/2-year-old boy with the unusual combination of acute infantile hemiplegia, ectopia lentis and the absence of homocystinuria showed large amounts of abnormal sulfur-containing metabolites (sulfite, thiosulfate and S-sulfocysteine) in the urine. Sulfite and S-sulfocysteine were also present in the plasma. His inorganic sulfate excretion was only 50 per cent of total sulfur, as compared with 75 to 95 per cent by controls. Loading with L-cysteine hydrochloride and L-methionine further increased the excretion of sulfite and thiosulfate, but not inorganic sulfate excretion. Sulfite oxidase activity in skin fibroblasts average 1.07 nmol of cytochrome d reduced per milligram of protein per minute in control lines; it was not detectable (less than 5 per cent) in the patient. Activity was reduced in both parents (0.50 in the father and 0.32 in the mother)--compatible with autosomal recessive inheritance. Good biochemical responses to a low sulfur amino acid diet suggest that early treatment may benefit the patient.
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616
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Johnson JL. Other disciplines strengthen nursing education. AORN J 1977; 26:535-6. [PMID: 242516 DOI: 10.1016/s0001-2092(07)60582-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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617
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Johnson JL, Jones HP, Rajagopalan KV. In vitro reconstitution of demolybdosulfite oxidase by a molybdenum cofactor from rat liver and other sources. J Biol Chem 1977; 252:4994-5003. [PMID: 873926] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
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618
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Jones HP, Johnson JL, Rajagopalan KV. In vitro reconstitution of demolybdosulfite oxidase by molybdate. J Biol Chem 1977; 252:4988-93. [PMID: 17611] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Reconstitution of purified demolybdosulfite oxidase from rat liver has been achieved using inorganic molybdate as the source of molybdenum. The activation process has a pH optimum of 7.4 and is dependent on concentrations of molybdate and demolybdoenzyme. The reaction is inhibited by high concentrations of anions and by reduction of the demolybdoenzyme and requires incubation temperatures higher than 30 degrees. A reconstitution mechanism involving loss of tungsten and concomitant replacement with molybdenum in those demolybdo molecules which contain tungsten is supported by the following observations: (a) the extent of activation achieved by molybdate corresponds to the proportion of molecules in the preparation which contain tungsten. (b) Incubation of the demolybdoenzyme preparation at 37 degrees in the absence of molybdate results in progressive and concentration-dependent loss of ability to be reconstituted by molybdate and a corresponding but more rapid loss of tungsten from the enzyme. The reconstituted enzyme displays the molybdenum EPR signal characteristic of native enzyme and is inactivated by incubation at 42 degrees in a manner identical to native sulfite oxidase.
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619
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Johnson JL, Jones HP, Rajagopalan KV. In vitro reconstitution of demolybdosulfite oxidase by a molybdenum cofactor from rat liver and other sources. J Biol Chem 1977. [DOI: 10.1016/s0021-9258(17)40151-7] [Citation(s) in RCA: 50] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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620
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Wiley PF, Johnson JL, Houser DJ. Nogalamycin analogs having improved antitumor activity. J Antibiot (Tokyo) 1977; 30:628-9. [PMID: 893233 DOI: 10.7164/antibiotics.30.628] [Citation(s) in RCA: 20] [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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621
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Jones HP, Johnson JL, Rajagopalan KV. In vitro reconstitution of demolybdosulfite oxidase by molybdate. J Biol Chem 1977. [DOI: 10.1016/s0021-9258(17)40150-5] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
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622
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Ko CY, Johnson JL, Barnett LB, McNair HM, Vercellotti JR. A sensitive estimation of the percentage of guanine plus cytosine in deoxyribonucleic acid by high performance liquid chromatography. Anal Biochem 1977; 80:183-92. [PMID: 883630 DOI: 10.1016/0003-2697(77)90638-8] [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: 12/24/2022]
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623
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Johnson JL. Glutamic acid as a synpatic transmitter candidate in the dorsal sensory neuron: reconsiderations. Life Sci 1977; 20:1637-44. [PMID: 17796 DOI: 10.1016/0024-3205(77)90336-8] [Citation(s) in RCA: 32] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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624
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Booth SJ, Johnson JL, Wilkins TD. Bacteriocin production by strains of Bacteroides isolated from human feces and the role of these strains in the bacterial ecology of the colon. Antimicrob Agents Chemother 1977; 11:718-24. [PMID: 856024 PMCID: PMC352057 DOI: 10.1128/aac.11.4.718] [Citation(s) in RCA: 45] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Several human fecal isolates of Bacteroides have been found to produce bacteriocins. The bacteriocin-producing strain T1-1 was studied in the most detail. Strain T1-1 belongs to the 0061-1 deoxyribonucleic acid (DNA) homology group of Bacteroides. This homology group phenotypically resembles Bacteroides thetaiotaomicron but has little DNA homology with it. The bacteriocin-producing strains T1-12 and T1-48 belong to the 3452-A DNA homology group. This group has DNA homology with B. thetaiotaomicron and Bacteroides ovatus. The bacteriocin-producing strain T1-42 remains unidentified in that it does not belong to any recognized DNA homology group of the saccharolytic intestinal bacteroides. The extracellular bacteriocin produced by strain T1-1 was specifically bactericidal for other bacteria within the genus Bacteroides. The highest bacteriocin titers (32 to 64) were produced in complex media, with only trace amounts being produced in a defined medium. The bacteriocin appeared to have a high molecular weight (>/=300,000) and was unusual because it was stable from pH 1 to 12 and only a 50% reduction in activity resulted after 15 min at 121 degrees C in an autoclave. It was inactivated by trypsin and Pronase. Strain T1-1 was isolated from all three fecal samples obtained over a 25-week period from an individual who was part of a National Aeronautics and Space Administration mock Skylab flight. Strains T1-12, T1-48, and T1-42 were isolated only from the first fecal sample. Each of these strains was immune to the bacteriocins produced by the others. These strains were found to coexist in the colon with a larger population of non-bacteriocin-producing, bacteriocin-susceptible strains of Bacteroides.
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625
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Johnson JL, Rajagopalan KV. Tryptic cleavage of rat liver sulfite oxidase. Isolation and characterization of molybdenum and heme domains. J Biol Chem 1977; 252:2017-25. [PMID: 14956] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Treatment of rat liver sulfite oxidase with trypsin leads to loss of ability to oxidize sulfite in the presence of cytochrome c as electron acceptor. Ability to oxidize sulfite with ferricyanide as acceptor is undiminished, while sulfite leads to O2 activity is partially retained. Gel filtration of the proteolytic products has led to the isolation of two major fragments of dissimilar size derived from sulfite oxidase. The smaller fragment has a molecular weight of 9500 and appears to be monomeric when detached from sulfite oxidase. It contains the heme in its cytochrome b5 structure, has no sulfite oxidase activity, and is reducible with dithionite but not with sulfite. The heme fragment can mediate electron transfer between pig liver microsomal NADH cytochrome b5 reductase and cytochrome c. The larger fragment has a molecular weight of 47,400 under denaturing conditions but elutes from Sephadex G-200 as a dimer. It contains no heme but retains all of the molybdenum and the modified sulfite-oxidizing capacity present in the proteolytic mixture. All of the EPR properties of the molybdenum center of native sulfite oxidase are retained in the molybdenum fragment. The molybdenum center is a weak chromophore with an absorption sectrum suggestive of coordination with sulfur ligands. Reduction by sulfite generates a spectrum attributable to molybdenum (V). Spectra of oxidized and sulfite-reduced preparations are sensitive to anions and pH. NH2-terminal analysis of native sulfite oxidase and the two tryptic fragments has permitted the conclusion that the sequence represented by the heme fragment is the NH2 terminus of native enzyme. These studies have demonstrated that the two cofactor moieties of sulfite oxidase are contained in distinct domains which are covalently held in contiguity by means of an exposed hinge region. Isolation of functional heme and molybdenum domains of sulfite oxidase after tryptic cleavage has demonstrated conclusively that the cytochrome b5 region of the molecule is required for electron transfer to the physiological acceptor, cytochrome c.
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626
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O'Brien CR, Johnson JL. Paraprofessional support for the hospitalized patient. DIMENSIONS IN HEALTH SERVICE 1977; 54:37-9. [PMID: 832781] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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627
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Johnson JL, Rajagopalan KV. Electron paramagnetic resonance of the tungsten derivative of rat liver sulfite oxidase. J Biol Chem 1976; 251:5505-11. [PMID: 9389] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Sulfite oxidase purified from livers of tungsten-treated rats has been used for EPR studies of tungsten substituted at the molybdenum site of the enzyme in a fraction of the molecules. The EPR signal of W(V) in sulfite oxidase is quite similar to that of Mo(V) in its line shape and in its sensitivity to the presence of anions such as phosphate and fluoride. Hyperfine interaction with a dissociable proton is also observed in both signals. The pH-dependent alteration in line shape exhibited by the Mo(V) EPR signal of the rat liver enzyme. Incomplete reduction of the tungsten center at pH 9 is indicated by attenuated signal intensity at this pH. The W(V) signal has g values lower than those of the Mo(V) signal, has a much broader resonance envelope, and is much less readily saturated by increasing microwave power. Kinetic studies on the reduction of the heme and tungsten centers of sulfite oxidase have shown that reduction of de-molybdo forms of sulfite oxidase by sulfite is catalyzed by the residual traces of native molybdenum-containing molecules. Reduction is accomplished by electron transfer involving intermolecular heme-heme interaction. The W(V) signal is generated only after all the heme centers are reduced. The rate and extent of heme reduction at pH 9 are the same as at pH 7. Studies on the reoxidation of W(V) and reduced heme by O2 and by cytochrome c suggest that the cytochrome b5 of sulfite oxidase is the site of electron transfer to cytochrome c, whereas oxidase activity is the property of the molybdenum center. It appears that the tungsten center in sulfite oxidase is incapable of oxidizing sulfite.
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628
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Brown AS, Wallack MK, Horstmann JT, Hamilton RW, Johnson JL, Rosato FE. Perfusion therapy for extremity melanoma. ARCHIVES OF SURGERY (CHICAGO, ILL. : 1960) 1976; 111:961-3. [PMID: 949257 DOI: 10.1001/archsurg.1976.01360270033005] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Because of their initial appearance on extremities, malignant melanomas lend themselves to isolated chemotherapeutic perfusions. Perfusion is attractive because one can deliver effective cytotoxic drugs without systemic toxicity. We are reviewing 20 patients treated between 1960 and 1973 with isolated perfusion. Melphalan (L-phenylalanine mustard) was the drug of choice. Eleven of the 20 patients had previous surgical treatment. Three of the 11 patients are still alive from 27 to 72 months postperfusion. Eight died after an average survival time of 33 months. Of the seven patients who underwent perfusion as primary therapy, four patients are alive from 25 to 76 months postperfusion, and three died after an average survival time of 34 months. There is direct correlation between stages and levels of melanoma, and perfusion and prolonged survival time.
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629
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Sarma R, Prickett C, Johnson JL. Assessment of clinical laboratory techniques in the measurement of oxygen saturation in whole blood. Angiology 1976; 27:502-8. [PMID: 45493 DOI: 10.1177/000331977602700903] [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: 12/12/2022]
Abstract
The accuracy and advantages of determining percentage of hemoglobin oxygen saturation of whole blood by advanced instruments of oximetry, gas chromatography, and the computation of oxygen saturation from pO2 and pH data are compared with the Van Slyke-Neill manometric method. It was found that oximetry is extremely fast, less expensive, and more accurate than in the past, the apparatus requires little training to operate and has diminutive service maintenance. The gas chromatograph proved to be highly accurate and could serve as a standard calibration check method in place of the more time-consuming Van Slyke-Neill apparatus for oximetry and pO2 and pH electrode instrumentation. Computation of O2 saturation from pO2 and pH data also proved to be accurate, confirming that this method is more useful during cardiac surgery because it can provide additional acid-base information. In the low oxygen saturation range (less than 60%), all three methods proved to be of similar sensitivity.
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630
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Johnson JL, Rajagopalan KV. Electron paramagnetic resonance of the tungsten derivative of rat liver sulfite oxidase. J Biol Chem 1976. [DOI: 10.1016/s0021-9258(17)33088-0] [Citation(s) in RCA: 41] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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631
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Johnson JL, Rajagopalan KV. Purification and properties of sulfite oxidase from human liver. J Clin Invest 1976; 58:543-50. [PMID: 956383 PMCID: PMC333211 DOI: 10.1172/jci108499] [Citation(s) in RCA: 92] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
Sulfite oxidase has been purified to near homogeneity from human liver. Properties of the molecule have been investigated and compared to those of the rat liver enzyme which has been isolated in a pure form. Both proteins exist as dimeric molecules with one molybdenum and one cytochrome b5-type heme per sub-unit. The human enzyme has a slightly larger subunit molecular weight (61,100 vs. 57,200 daltons) and is a more negatively charged molecule. Decreased reactivity of the human enzyme with various electron acceptors suggests the presence of nonfunctional molybdenum centers in a portion of the molecules isolated. Human liver sulfite oxidase cross-reacts strongly with antibody prepared against the rat liver enzyme. Human enzyme activity is precipitated by antibody at concentrations about twofold greater than required for comparable complexation of rat sulfite oxidase.
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632
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Johnson JL, Rajagopalan KV. Human sulfite oxidase deficiency. Characterization of the molecular defect in a multicomponent system. J Clin Invest 1976; 58:551-6. [PMID: 956384 PMCID: PMC333212 DOI: 10.1172/jci108500] [Citation(s) in RCA: 36] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
Frozen liver tissue from an individual identified several years ago as sulfite oxidase deficient has been reexamined in light of new knowledge which has been obtained regarding the enzyme. It has been established that hepatic molybdenum levels and xanthine oxidase activity were within normal values and comparable to those observed in control samples preserved from the original study along with the deficient tissue sample. The ability of the patient's liver to synthesize the specific molybdenum cofactor required for activation of de-molybdo sulfite oxidase also appears to have been unimpaired. Using an antibody preparation directed against rat liver sulfite oxidase which also inhibits and precipitates the human enzyme, it has been determined that cross-reacting material with determinants recognized by inhibiting antibodies is absent in the liver sample from the deficient patient. Immunodiffusion experiments gave strong precipitin bands against the control liver extracts, but showed no detectable precipitin reaction between the deficient liver extract and the antibody preparation. The relationship of these findings to a second patient recently identified as sulfite oxidase deficient and to an animal model of the disease are discussed.
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633
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Wilkins TD, Chalgren SL, Jimenez-Ulate F, Drake CR, Johnson JL. Inhibition of Bacteroides fragilis on blood agar plates and reversal of inhibition by added hemin. J Clin Microbiol 1976; 3:359-63. [PMID: 1270596 PMCID: PMC274299 DOI: 10.1128/jcm.3.3.359-363.1976] [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: 12/26/2022] Open
Abstract
Bacteroides fragilis strains formed much smaller colonies on most types of blood agar plates than they did on the same media without blood. Blood inhibited strains of B. fragilis subsp. distasonis the most and B. fragilis subsp. fragilis the least. The inhibition could be eliminated by adding hemin to the blood agar. The inhibitory component of the blood was inside the erythrocytes and appeared to be the hemin-free globin of hemoglobin.
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634
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Johnson JL. The problem of detecting a free glutamate decrease in the dorsal sensory neuron following dorsal root crush. EXPERIENTIA 1976; 32:184-6. [PMID: 1269603 DOI: 10.1007/bf01937755] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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635
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Johnson JL. A comparative analysis of compartmentation of metabolism in the dorsal root ganglion and ventral spinal cord gray using [U-14C]glucose, [2-14C]glucose, [6-14C]glucose, [3,4-14C]glucose, NaH14CO3, and [2-14C]pyruvate. Brain Res 1976; 101:523-32. [PMID: 1244987 DOI: 10.1016/0006-8993(76)90475-3] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
A detailed temporal comparison of glucose metabolism, in the production of glutamate and glutamine as well as aspartate and alamine, was conducted in order to further define the uniqueness of the dorsal root ganglion compared to the ventral spinal cord gray. Experiments with injected labeled NaHCO3 and pyruvate were used in an attempt to clarify certain aspects of the above results with different [14C]glucose precursors. The glutamine/glutamate relative specific activity ratio (RSA) was consistently lower in the ganglion than in the ventral spinal cord gray, as was also true for glutamate specific activity from the same amount of injected [14C]glucose. The ganglion is characterized by a high level of alanine production from glucose and pyruvate. The NaH14CO3 experiments suggest that CO2 fixation from [3,4-14C]-glucose in the dorsal rool ganglion resul .ts in a higher glutamine/glutamate RSA when compared to results using either [6-14C] or [2-14C]glucose.
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636
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Miller EE, Brown AS, Johnson JL, Moskovitz A, Wallack MK, Rosato EF, Rosato FE. Neuraminidase immunotherapy: serum potentiation of lymphocyte cytotoxicity related to immunoglobulin levels. J Surg Oncol 1976; 8:351-62. [PMID: 948205 DOI: 10.1002/jso.2930080415] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Seven patients completed couses of immunotherapy using neuraminidase-altered autochthonous cells. Their response to therapy was monitored by a cytotoxicity assay using 3H-proline-tagged tumor cells from the patient's own cultured tumor in a strictly autologous system. Serum effects were measured by exposing the tumor target cells to serum to see whether this impeded (blocked) or augmented (potentiated) lymphocyte cytotoxicity. Three of the seven patients developed increasing degrees of serum blocking effect and all died within six months of completing therapy. Four of the seven showed rapidly decreasing blocking and three eventual potentiation. Three patients are living, improved, and free of evidence of tumor. There was an increase in average serum immunoglobulins in patients developing potentiation, and a decrease in those showing blocking. In any immunotherapy program attention must be given to in vitro monitoring studies, and such studies should include attention to the serum factors influencing host response.
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637
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Yoganathan AP, Gupta R, Udwadia FE, Miller JW, Corcoran WH, Sarma R, Johnson JL, Bing RJ. Use of the fast Fourier transform for frequency analysis of the first heart sound in normal man. MEDICAL & BIOLOGICAL ENGINEERING 1976; 14:69-73. [PMID: 1256095 DOI: 10.1007/bf02477093] [Citation(s) in RCA: 48] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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638
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Johnson JL. Compartmentation of [U-14C]proline metabolism in the dorsal root ganglion: contrasts with the ventral spinal cord gray and cerebral cortex. Brain Res 1975; 96:192-6. [PMID: 1175002 DOI: 10.1016/0006-8993(75)90596-x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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639
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Yousten AA, Johnson JL, Salin M. Oxygen metabolism of catalase-negative and catalase-positive strains of Lactobacillus plantarum. J Bacteriol 1975; 123:242-7. [PMID: 1141195 PMCID: PMC235712 DOI: 10.1128/jb.123.1.242-247.1975] [Citation(s) in RCA: 27] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
Two catalase-negative strains of Lactobacillus plantarum and a strain producing the atypical, nonheme catalase were studied to determine if the ability to produce the atypical catalase conferred any growth advantage upon the producing strain. Both catalase-negative strains grew more rapidly than the catalase-positive strain under aerobic or anaerobic conditions in a glucose-containing, complex medium. Upon exhaustion of glucose from the medium, all three strains continued growth under aerobic but not under anaerobic conditions. The continued aerobic growth was accompanied by production of acetic acid in addition to the lactic acid produced during growth on glucose. Oxygen was taken up by exponential phase-cell suspensions grown on glucose when glucose or glycerol were used as substrates. Cells harvested from glucose-exhausted medium oxidized glucose, glycerol, and pyruvate. Oxygen utilization by a catalase-negative strain increased as did the specific activity of reduced nicotinamide adenine dinucleotide peroxidase during late growth in the glucose-exhausted medium. The catalase-positive strain and the catalase-negative strain tested both possessed low but readily detectable levels of superoxide dismutase throughout growth. The growth responses are discussed in terms of the presence of enzymes which would allow the cells to remove potentially damaging reduction products of O2.
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640
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Johnson JL, Francis BS. Taxonomy of the Clostridia: ribosomal ribonucleic acid homologies among the species. JOURNAL OF GENERAL MICROBIOLOGY 1975; 88:229-44. [PMID: 168308 DOI: 10.1099/00221287-88-2-229] [Citation(s) in RCA: 112] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
rRNA homologies have been determined on reference strains representing 56 species of Clostridium. Competition experiments using tritium-labelled 23S rRNA were employed. The majority of the species had DNA with 27 to 28% guanine plus cytosine (%GC). These fell into rRNA homology groups I and II, which were well defined, and a third group which consisted of species which did not belong in groups I and II. Species whose DNA was 41 to 45% GC comprised a fourth group. Thirty species were placed into rRNA homology group I on the basis of having 50% or greater homology with Clostridium butyricum, C. perfringens, C. carnis, C. sporogenes, C. novyi or C. pasteurianum. Ten subgroups were delineated in homology group I. Species in each subgroup either had high homology with a particular reference species or a similar pattern of homologies to all of the reference organisms. The eleven species in rRNA homology group II had 69% or greater homology to C. lituseburense. Species in groups I and II had intergroup homologies of 20 to 40%. The six species in group II had very low homologies with groups I and II. Negligible homology also resulted when five of the species were tested against the sixth, C. ramosum. The five species having DNA with 41 to 45% GC were C. innocuum, C. sphenoides, C. indolis, C. barkeri and C. orotic um. Little rRNA homology was apparent between C. innocuum and the other high % GC species or with several Bacillus species having similar %GC DNA. Correlations between homology results and phenotypic characteristics are discussed.
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641
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Leavell UW, Mersack IP, Johnson JL, Butler D. Mycosis fungoides-case report. THE JOURNAL OF THE KENTUCKY MEDICAL ASSOCIATION 1975; 73:139-41. [PMID: 1127309] [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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642
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Ishikawa K, Buggs H, Sarma R, Tillmanns H, Fauvel JM, Getzen JH, Johnson JL, Bing RJ. Blood flow velocity in the carotid artery as a measure of myocardial contractility. JAPANESE HEART JOURNAL 1975; 16:22-35. [PMID: 123016 DOI: 10.1536/ihj.16.22] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
An attempt was made to derive a useful noninvasive index to evalute a change in myocardial contractile state using transcutaneous Doppler flow-velocity curve from the carotid artery. In 5 mongrel dogs and in 43 patients with various heart disease, Doppler flow velocity curves were obtained from the ascending aorta intravascularly using a Doppler catheter and/or from carotid artery transcutaneously using a Doppler probe. The first derivative of left ventricular pressure (dp/dt) and electrocardiogram (ECG) were recorded simultaneously. The following 3 indices were measured from the Doppler flow-velocity curves: (1) macimum acceleration of blood flow (dv/dt), (2) time from onset of ejection to peak flow (time-to-peak), (3) time interval between the beginning of Q wave of ECG to the peak of Doppler flow velocity curve (ECG Q-Doppler peak). Among these 3 indices, only ECG Q-Doppler peak demonstrated a significant correlation between the values measured intravascularly and transcutaneously. Also, only ECG Q-Doppler peak showed significant correlation with maximum of dp/dt (max dp/dt). Since ECG Q-Doppler peak showed correlation with heart rate, the difference between observed and predicted ECG Q-Doppler peak (delta ECG Q-Doppler peak) was calculated to exclude the effect of heart rate. Predicted value of ECG Q-Doppler peak was calculated from the regression equation between heart rate and ECG Q-Doppler peak in the separate experiments. There was significant correlation between delta ECG Q-Doppler peak and max dp/dt. In 15 patients with coronary artery disease and in 16 healthy subjects, delta ECG Q-Doppler peak and the other noninvasive method (systolic time intervals) were measured. Delta ECG Q-Doppler peak showed better result in the separation of 2 groups than by systolic timeintervals. It was concluded that delta ECG Q-Doppler peak is a useful index to evaluate the myocardial contractile state since this index is readily obtained noninvasively.
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643
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Charlesworth EN, Johnson JL. An epidemic of canine scabies in man. ARCHIVES OF DERMATOLOGY 1974; 110:572-4. [PMID: 4137535] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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644
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Cohen HJ, Johnson JL, Rajagopalan KV. Molecular basis of the biological function of molybdenum. Developmental patterns of sulfite oxidase and xanthine oxidase in the rat. Arch Biochem Biophys 1974; 164:440-6. [PMID: 4376662 DOI: 10.1016/0003-9861(74)90053-8] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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645
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Johnson JL. Aspartic acid as a precursor for glycine: (14C)glycine contamination of (14C)-aspartate prepared by the supplier at levels much greater than indicated. Brain Res 1974; 77:513-4. [PMID: 4850647 DOI: 10.1016/0006-8993(74)90641-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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646
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Johnson JL, Waud WR, Cohen HJ, Rajagopalan KV. Molecular basis of the biological function of molybdenum. Molybdenum-free xanthine oxidase from livers of tungsten-treated rats. J Biol Chem 1974; 249:5056-61. [PMID: 4368927] [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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647
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Johnson JL, Cohen HJ, Rajagopalan KV. Molecular basis of the biological function of molybdenum. Molybdenum-free sulfite oxidase from livers of tungsten-treated rats. J Biol Chem 1974; 249:5046-55. [PMID: 4368926] [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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648
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649
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Johnson JL. An analysis of the compartmentation and proximo-distal convection of the clutamate-glutamine system in the dorsal sensory neuron: comparison with the motoneuron and cerebral cortex. Brain Res 1974; 67:489-502. [PMID: 4470437 DOI: 10.1016/0006-8993(74)90497-1] [Citation(s) in RCA: 11] [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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650
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Johnson JL, Ottolini AC, Forster FA, Loranger RB. The determination of sulfur, lead, and silicon in atmospheric aerosols: an application of X-ray fluorescence and confined-spot paper techniques. Mikrochim Acta 1974:145-50. [PMID: 4824343 DOI: 10.1007/bf01219674] [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: 01/12/2023]
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