751
|
Sandman CA, George J, McCanne TR, Nolan JD, Kaswan J, Kastin AJ. MSH/ACTH 4-10 influences behavioral and physiological measures of attention. J Clin Endocrinol Metab 1977; 44:884-91. [PMID: 192754 DOI: 10.1210/jcem-44-5-884] [Citation(s) in RCA: 89] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Eleven healthy male volunteers were infused with MSH/ACTH 4-10 and a control solution in a completely crossed and balanced procedure. Perception, attention and memory were tested as were heart rate and cephalic pulse amplitude in response to changes in the environment. Treatment of subjects with MSH/ACTH 4-10 raised their perceptual threshold for detection of simple stimuli and facilitated perceptual integration of patterned information. Administration of the heptapeptide improved the subjects' ability to discriminate tests of relevant from irrelevant information and augmented the heart-rate deceleratory response during presentation of novel stimuli. It was speculated that MSH/ACTH 4-10 has a predominant influence on attentional processes and that it may be uniquely coded for attentional/perceptual functioning.
Collapse
|
752
|
Assan R, Heuclin C, Ganeval D, Bismuth C, George J, Girard JR. Metformin-induced lactic acidosis in the presence of acute renal failure. Diabetologia 1977; 13:211-7. [PMID: 406158 DOI: 10.1007/bf01219702] [Citation(s) in RCA: 61] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
|
753
|
Abstract
A vaccinia virus-lysed autochthonous tumor cell vaccine (vaccinia oncolysate) is introduced as a new specific, active immunotherapeutic agent against human cancer. Mouse experiments showed the vaccine to be a safe and potent immune mechanism stimulator. Human experimentation was undertaken in the knowledge of relative safety of the components of the vaccine, i.e. vaccinia vaccine and lysed, autochthonous tumor cells. Vaccine-treated patients had advanced metastatic cancer but reacted to one or more common recall antigen skin tests. None of the 13 patients had untoward responses; 7/13 patients had classic delayed hypersensitivity reactions at the vaccine injection sites; and 2/7 patients with injection site reactions had significant reduction in tumor burden. These results indicate that this vaccine is a specific, active immune mechanism stimulator, and may prove to be a useful therapeutic agent in the treatment of human cancer.
Collapse
|
754
|
Abstract
Quadriplegic patients frequently undergo unusual positional changes, including head-down tilt. To determine if hypoxemia develops in this position and whether it is related to the duration of quadriplegia, five patients were studied within 1 year of injury (group A) and five after 1 year from injury (group B). Arterial blood gases were obtained in the seated and 45-degree head-down position. Group A patients had a decrease in arterial partial pressure of oxygen in the head-down position (p less than 0.025), while group B patients did not (p greater than 0.4). This study demonstrated that quadriplegic patients have positional hypoxemia early in their course. This probably results from relative hypoventilation of the upper lung fields caused by flaccid paralysis of the intercostal muscles. The positional hypoxemia disappears with time, presumably because of the change from flaccid to spastic paralysis of the intercostal muscles.
Collapse
|
755
|
|
756
|
George J, Rugman FP. Points from Letters: System, or 2nd MB? West J Med 1976. [DOI: 10.1136/bmj.2.6030.305-d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
|
757
|
Fleet C, Hopkins E, Chrisolm D, Rose G, Bepko F, George J, Sinkford S. Fetal monitoring in labor. J Natl Med Assoc 1976; 68:195-7. [PMID: 933187 PMCID: PMC2609680] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
|
758
|
Sather MR, Weber CE, George J, Beilman AA, Rasplica IF, Sweeney T. Educating patients on spinal cord injury unit for self-medication. Hosp Pharm 1976; 11:14-7, 20-1. [PMID: 1025060] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
|
759
|
Sandman CA, George J, Walker BB, Nolan JD, Kastin AJ. Neuropeptide MSH/ACTH 4-10 enhances attention in the mentally retarded. Pharmacol Biochem Behav 1976; 5:23-8. [PMID: 189328 DOI: 10.1016/0091-3057(76)90324-5] [Citation(s) in RCA: 65] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Twenty adult mentally retarded men were randomly assigned to receive MSH/ACTH 4-10 or a vehicle control solution in a double blind procedure. After an intravenous injection the subjects were presented with an orienting sequence and a series of behavioral tests. Treatment with the peptide resulted in a significant decelerative heart rate response during the test stimulus of the orienting sequence. Improved performance of the intradimensional and extradimensional shift of a visual discrimination procedure was significant for subjects receiving MSH/ACTH 4-10. The pattern of response on the subproblem analysis of the extradimensional shift reflected greater dimensional attention in the subjects treated with the peptide. Attentive subjects given MSH/ACTH 4-10 evidenced significant improvement on a rhythm matching test, a test of spatial localization and a visual retention test. The data were interpreted as indicating that the peptide resulted in improved attention of stimulus processing. It was speculated that MSH/ACTH 4-10 may be unquely coded for perceptor/attentional functioning and may be useful as a treatment for disorders of attention.
Collapse
|
760
|
George J, Castellazzi M, Buttin G. Prophage induction and cell division in E. coli. III. Mutations sfiA and sfiB restore division in tif and lon strains and permit the expression of mutator properties of tif. MOLECULAR & GENERAL GENETICS : MGG 1975; 140:309-332. [PMID: 1107802] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
In E. coli K12, cell filamentation promoted by tif is enhanced by the lon mutation; in contrast, prophage induction and repair of UV-irradiated phage lambda, also promoted by tif, are not affected by lon. From a tif lon double mutant, "revertants" having recovered the ability to divide at 41 degrees were isolated, among which most (95%) had also lost their Lon filamentous phenotype after ultraviolet (UV) irradiation. From these 95% of revertants: (1) 94% are suppressed for the whole Tif phenotype, by additional mutations that render them deficient in DNA repair, as judged from their high UV sensitivity; some have been characterized as recA mutants. (2) 1% have recovered a control on cell division at 41 degrees or after UV irradiation by means of secondary mutations altering neither the other phenotypic properties of tif and lon, nor the repair and recombination ability of the cells: in particular, this class of "revertants" remains thermoinducible upon lysogenisation; the mutations which specifically suppress filamentation have been mapped at two loci, sfiA and sfiB, cotransducible respectively with pyrD and leu. In the remaining 5% of revertants that still exhibit an UV-induced filamentous growth, 3% can be tentatively classified as true tif+ revertants; 2% behave as tif thermodependent revertants, showing suppression of the Tif (and Lon) phenotype only at 41 degrees: 2recAts have been identified in this class. Non-lysogenic tif lon sfi and tif sfi strains remain viable during prolonged growth at 41 degrees. Under these conditions, tif expresses mutator properties, which can be conveniently analyzed in this sfi background. The action of lif, lon and sfi mutations is tentatively interpreted on the basis of a negative control of cell division specifically associated with DNA repair.
Collapse
|
761
|
|
762
|
Devoret R, Blanco M, George J, Radman M. Recovery of phage lambda from ultraviolet damage. BASIC LIFE SCIENCES 1975; 5A:155-71. [PMID: 1103822 DOI: 10.1007/978-1-4684-2895-7_20] [Citation(s) in RCA: 33] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Recovery of phage lambda from ultraviolet damage can occur, in the dark, through three types of repair processes as defined by microbiological tests: (1) host-cell reactivation, (2) prophage reactivation, and (3) UV reactivation. This paper reviews the properties of the three repair processes, analyzes their dependence on the functioning of bacterial and phase genes, and discusses their relationship. Progress in the understanding of the molecular mechanisms underlying the three repair processes has been relatively slow, particularly for UV reactivation. It has been shown that host-cell reactivation is due to pyrimidine dimer excision and that prophage reactivation is due to genetic recombination (prereplicative). We provide evidence showing that neither of these mechanisms accounts for UV reactivation of phage lambda. Furthermore, UV reactivation differs from the other repair processes in that it is inducible and error-prone. Whether UV-damaged bacterial DNA is subject to a similar repair process is still an open question.
Collapse
|
763
|
Sakai KK, Marks BH, George J, Koestner A. Specific angiotensin II receptors in organ-cultured canine supra-optic nucleus cells. Life Sci 1974; 14:1337-44. [PMID: 4363011 DOI: 10.1016/0024-3205(74)90442-1] [Citation(s) in RCA: 52] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
|
764
|
Mahler I, George J, Grossman L. In vitro repair of UV-irradiated Micrococcus luteus bacteriophage N1 transfecting DNA. J Virol 1974; 13:765-7. [PMID: 4823319 PMCID: PMC355366 DOI: 10.1128/jvi.13.3.765-767.1974] [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: 01/12/2023] Open
Abstract
Calcium-treated UV-sensitive, host cell reactivation(-) strains of Micrococcus luteus are infected with UV-irradiated N1 DNA. In strains lacking UV endonuclease, in vitro treatment of the irradiated DNA results in transfection enhancement.
Collapse
|
765
|
Abstract
When an F(-) recipient Escherichia coli K12 bacterium receives Hfr or F-lac(+) DNA from an ultraviolet-irradiated donor, its capacity to promote DNA repair and mutagenesis of ultraviolet-damaged phage lambda is substantially increased. We call this phenomenon indirect ultraviolet-reactivation, since its features are essentially the same as those of ultraviolet-reactivation; this repair process occurs in pyrimidine dimer excision-deficient strains and produces clear plaque mutations of the restored phage. Moreover, this process is similar to indirect ultraviolet-induction of prophage lambda, since it is promoted by conjugation. However, contrarily to indirect induction, it is produced by Hfr donors and occurs in recipients restricting the incoming ultraviolet-damaged donor DNA. The occurrence of indirect ultraviolet-reactivation provides evidence for the existence in E. coli of an inducible error-prone mechanism for the repair of DNA.
Collapse
|
766
|
Abstract
Since some clinical and metabolic features of lipoatrophy suggest increased human growth hormone (HGH) activity, we studied HGH responses in five patients with partial or total lipoatrophy. Two patients with total lipoatrophy had elevated basal levels of HGH of 80 and 25 ng. per milliliter, while two with partial lipoatrophy had abnormally high levels after arginine stimulation. The elevated levels seemed to correlate with the clinical activity of the disease. In one of the patients there was a slowing of the growth rate and a moderate weight gain after long-term chlorpromazine therapy decreased HGH levels; a comparison of the immunoreactive HGH in her serum with that from a normal patient by serial dilution technics suggested that the two were immunologically identical, and chromatographic mobilities were also identical. Oral glucose suppressed elevated HGH in all of the patients. These studies suggest that HGH levels are elevated intermittently in lipoatrophic patients and that the increase may contribute to some features of the disease.
Collapse
|
767
|
Dzwonkowski J, Szulc A, George J, Wierusz M. [Delayed results of hip arthrodesis on the unaffected hip]. CHIRURGIA NARZADOW RUCHU I ORTOPEDIA POLSKA 1973; 38:439-43. [PMID: 4755329] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
|
768
|
|
769
|
Giorgini GL, Hollinger FB, Leduc L, Issarescu S, George J, Blackman A, Thayer WR. Radioimmunoassay detection of hepatitis type B antigen. A prospective study in blood donors and recipients. JAMA 1972; 222:1514-8. [PMID: 4629325] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
|
770
|
Castellazzi M, George J, Buttin G. [Prophage induction and cell division in E. coli. II. Linked (recA, zab) and unlinked (lex) suppressors of tif-1-mediated induction and filamentation]. MOLECULAR & GENERAL GENETICS : MGG 1972; 119:153-74. [PMID: 4577433 DOI: 10.1007/bf00269134] [Citation(s) in RCA: 122] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
|
771
|
Castellazzi M, George J, Buttin G. Prophage induction and cell division in E. coli. I. Further characterization of the thermosensitive mutation tif-1 whose expression mimics the effect of UV irradiation. MOLECULAR & GENERAL GENETICS : MGG 1972; 119:139-52. [PMID: 4565754 DOI: 10.1007/bf00269133] [Citation(s) in RCA: 224] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
|
772
|
Tzagournis M, George J, Herrold J. Elevated human growth hormone (HGH) levels in partial and total lipoatrophy. THE JOURNAL OF LABORATORY AND CLINICAL MEDICINE 1971; 78:1003-4. [PMID: 5131829] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
|
773
|
George J, Devoret R. Conjugal transfer of UV-damaged F-prime sex factors and indirect induction of prophage- . MOLECULAR & GENERAL GENETICS : MGG 1971; 111:103-19. [PMID: 4935455 DOI: 10.1007/bf00267786] [Citation(s) in RCA: 38] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
|
774
|
Bernhard WF, George J, Robinson T, Curtis G. Development of pseudo-endothelium on prosthetic surfaces utilizing bovine foetal fibroblasts. Br J Surg 1969; 56:698. [PMID: 5808401] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
|
775
|
Williams C, George J. Lay literature as an adjunctive teaching tool. JOURNAL OF PSYCHIATRIC NURSING AND MENTAL HEALTH SERVICES 1968; 6:226-9. [PMID: 4298685] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
|
776
|
|
777
|
George J. An accurate temperature? There are many factors causing variations. THE JOURNAL OF THE KANSAS MEDICAL SOCIETY 1967; 68:125-6. [PMID: 6040136] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
|
778
|
George J. Monitoring the myocardial infarct patient. Emotional reactions of nurse and patient. Nurs Clin North Am 1966; 1:549-57. [PMID: 5179711] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
|
779
|
George J. [Correlation between the disappearance of the indirect induction of the lambda prophage and the restriction of the DNA transmitted to the inductible receiving bacteria in a heterospecific F+ X F-crossing]. COMPTES RENDUS HEBDOMADAIRES DES SEANCES DE L'ACADEMIE DES SCIENCES. SERIE D: SCIENCES NATURELLES 1966; 262:1805-8. [PMID: 4956489] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
|
780
|
Ospina B, George J, Hunter FR. The effect of triton X-100 on the permeability of erythrocytes to non-electrolytes. J Cell Physiol 1965; 66:65-70. [PMID: 5857912 DOI: 10.1002/jcp.1030660107] [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: 01/17/2023]
|
781
|
|
782
|
Walser M, George J, Bodenlos LJ. Altered Proportions of Isotopes of Molecular Nitrogen as Evidence for a Monomolecular Reaction. J Chem Phys 1954. [DOI: 10.1063/1.1740302] [Citation(s) in RCA: 22] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|