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Weber JN, Wadsworth J, Rogers LA, Moshtael O, Scott K, McManus T, Berrie E, Jeffries DJ, Harris JR, Pinching AJ. Three-year prospective study of HTLV-III/LAV infection in homosexual men. Lancet 1986; 1:1179-82. [PMID: 2871421 DOI: 10.1016/s0140-6736(86)91160-8] [Citation(s) in RCA: 84] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
170 symptom-free homosexual men were recruited in London in 1982-83 and 133 were evaluable in 1983-85. Of the 33 who were seropositive to HTLV-III/LAV at entry, 4 (12%) progressed to AIDS, 16 (48%) progressed to persistent generalised lymphadenopathy (PGL), and 13 (40%) remained symptom-free. A further 15 men seroconverted during the study (7% per annum), of whom 8 progressed to PGL. Serial estimations of T lymphocyte subsets showed progressive reduction in T4 numbers in the seropositive groups, but these indices also varied widely in the seronegative group. Counts of T4 and T8 cells or T4/T8 ratio at entry were not of prognostic value. Seronegative subjects were as likely as seropositives to have abnormal immunological tests. Serial measurement of T lymphocyte subsets seems to be of little prognostic or clinical value in the monitoring of populations infected with the HTLV-III/LAV virus. The strongest association with prognosis was an episode of sexually transmitted disease in the six months before entry to the study. This supports the hypothesis that intercurrent infection may be an important co-factor in the acquisition of HTLV-III/LAV infection, and in subsequent disease progression.
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302
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Pettersson H, Hudson T, Hamlin D, Scott K, Springfield D, Enneking W, Spanier S. Magnetic resonance imaging of sacrococcygeal tumors. Acta Radiol Diagn (Stockh) 1985; 26:161-5. [PMID: 3857835 DOI: 10.1177/028418518502600206] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Five sacral tumors, 2 chordomas, 2 chondro- and/or osteosarcomas and one metastasis were examined with magnetic resonance imaging (MRI). The tumor delineation was excellent in all cases, and in several respects superior to CT. The signal pattern from the chordoma differed considerably from the other tumors suggesting a potential for tumor differentiation with MRI.
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303
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Pettersson H, Springfield D, Hamlin D, Scott K. Magnetic resonance imaging and tissue characterization of a renal cell carcinoma and its osseous metastasis. Report of a case. Acta Radiol Diagn (Stockh) 1985; 26:193-5. [PMID: 3993424 DOI: 10.1177/028418518502600212] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
A patient with renal cell carcinoma, first presenting because of symptoms from an osseous metastasis, was examined with CT and magnetic resonance imaging (MRI). Both the primary tumor and the metastasis were well demonstrated by both methods. MRI tissue characterization showed that the T1 values in the kidney and the metastasis were the same, as were the T2 values. This may mean a potential for the MRI to define primary tumors when a metastasis is found.
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304
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305
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Scott K. Reactor engineering models of complex electrochemical reaction schemes—I. Potentiostatic operation of parallel and series reactions in ideal reactors. Electrochim Acta 1985. [DOI: 10.1016/0013-4686(85)80088-8] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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306
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Scott K. Reactor engineering models of complex electrochemical reaction schemes—II. The effect of chemical reaction during batch electrolysis. Electrochim Acta 1985. [DOI: 10.1016/0013-4686(85)80089-x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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307
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Newman RK, Sands DC, Scott K. A microbiological approach to nutrition. J Am Diet Assoc 1984; 84:820-1. [PMID: 6376600] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Fermentation is known to modify nutritional value of foods positively. A new technique for supplementing traditional fermented foods with limiting amino acids is presented. Normal fermentative bacteria are induced to produce specific amino acids during the fermentation period. Acceptable food products have been prepared using fermented grain. The concept may be applicable to developing countries.
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308
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Scott K. Southland's ordeal. N Z Nurs J 1984; 77:8-9. [PMID: 6587239] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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309
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Chantler EN, Scott K, Filho CI, Elstein M, Faragher EB, Lorimer GW, Brough I. Degradation of the copper-releasing intrauterine contraceptive device and its significance. Br J Obstet Gynaecol 1984; 91:172-81. [PMID: 6696861 DOI: 10.1111/j.1471-0528.1984.tb05903.x] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Measurements were made of the copper remaining on used Gravigard intrauterine contraceptive devices (IUCDs) that had been in utero for up to 40 months. The topography and composition of the surface deposits were analysed by scanning electron microscopy and energy-dispersive X-ray analysis. The rate of copper loss decreased exponentially from 0.42 mumol d-1 (26.7 micrograms d-1) upon insertion to 0.056 mumol d-1 (3.6 micrograms d-1) after 26 months of use; between 27 and 40 months of use a linear release of 0.32 mumol d-1 (20.3 micrograms d-1) was observed. There was no correlation between this changing rate of copper loss and the pregnancy rate with the device in situ. The changes in the rate of copper loss were probably due to the growth of a surface corrosion product which, due to internal stresses, fractured after about 2 years and exposed fresh copper; this results in a progressive increase in breakage of the copper wire after 3 years. It is recommended that a copper IUCD of this type be replaced after 3 years.
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310
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311
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Luther ER, Gray JH, Scott K, Allen A, Stinson D. The effect of maternal glucose infusion on breathing movements in human fetuses with intrauterine growth retardation. Am J Obstet Gynecol 1982; 142:600-5. [PMID: 7065031 DOI: 10.1016/s0002-9378(16)32426-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
forty-nine patients with suspected intrauterine growth retardation (IUGR) were studied under rigid experimental conditions to determine baseline fetal breathing movement (FBM) activity and the response to 90-minute maternal glucose infusion, as compared to that of normal control subjects. Patients with IUGR showed a normal amount of FBMs during maternal fasting. All groups exhibited a significant increase in FBMs after glucose was administered. During the final 60 minutes of the glucose infusion, the severe IUGR group (weight for gestational age less than the third percentile) showed less FBM activity (p less than 0.01) than the other study and control groups.
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312
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313
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314
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315
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316
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Hebb M, Macpherson I, Cudmore D, Scott K, Weldon L, Smart M, Ley E. Nova scotia fetal risk project. Can Fam Physician 1980; 26:1664-1673. [PMID: 20469319 PMCID: PMC2383653] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
Family physicians delivering obstetrical care in Nova Scotia were invited to participate in a fetal risk project, conducted from 1971 to 1975. Thirty percent of the physicians participated, and data were collected on 17,270 patients, using the Goodwin, Dunne and Thomas(4) fetal risk scoring system. Patients scoring four to ten on the entire system accounted for 60% of stillbirths and 68% of neonatal deaths; when the 68% of neonatal deaths; when the non-gestational portion alone was used, patients scoring three to six accounted for 52% of stillbirths and 57% of neonatal deaths. When the scoring system was altered, patients scoring three to six accounted for 61% of stillbirths and 62% of neonatal deaths. Patients of participants did not appear to fare better than those of non-participants.
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317
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Goodridge F, Lister K, Plimley RE, Scott K. Scale-up studies of the electrolytic reduction of oxalic to glyoxylic acid. J APPL ELECTROCHEM 1980. [DOI: 10.1007/bf00937338] [Citation(s) in RCA: 27] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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318
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319
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Mcleod CG, Stookey JL, Eddy GA, Scott K. Pathology of chronic Bolivian hemorrhagic fever in the rhesus monkey. Am J Pathol 1976; 84:211-24. [PMID: 181994 PMCID: PMC2032458] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Gross and microscopic lesions of Bolivian hemorrhagic fever (BHF) are described in 10 rhesus monkeys that survived from 30 to 78 days after subcutaneous inoculation with a dose of 10(3) plaque-forming units (PFU) of Machupo virus, a dose which produces a severe and generally fatal disease. Six of the monkeys had been given low doses of homologous immune globulin when initial signs of infection appeared. Monkeys exhibited clinical signs in two phases. The initial signs of acute infection which began to appear about 1 week following inoculation included: diarrhea, depression, anorexia, dehydration, and skin rash. The survivors of this early phase of the illness usually showed improvement before relapsing into the second (or chronic) phase, which was characterized clinically by central nervous system disturbances including incoordination, tremors, convulsions, paresis, and muscle atrophy. Microscopic lesions were similar in both immune globulin-treated and untreated animals. These included widespread lymphoreticular infiltrates in the walls and adventitia of blood vessels of the brain, spinal cord, pancreas, intestine, liver kidney, adrenal, parathyroid, heart, and skeletal muscle. Diffuse lymphocytic infiltrates not confined to the vascular or perivascular tissues were present to a variable degree in many of these and other organs. Several monkeys exhibited lymphocytic inflammation of the choroid, meninges, peripheral nerves, and ganglia.
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320
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Scott K, Hamilton SE, Zerner B. Purification and properties of a carboxylesterase from the liver of tiger shark (Galeocerdo cuvier). Can J Biochem 1976; 54:453-61. [PMID: 1276972 DOI: 10.1139/o76-065] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
A procedure is described for the purification of a carboxylesterase from shark liver, using a chloroform-acetone powder prepared from the liver as the starting material. The yield of purified enzyme is approximately 50 mg from 530 g of chloroform-acetone powder. The preparation is electrophoretically homogeneous. Active-site titrations with paraoxon gave an equivalent weight of approximately 83 000. The molecular weight, found from sedimentation equilibrium experiments, is approximately 80 000. There is no evidence of any association or dissociation of this species. The enzyme shows a marked preference for aryl esters over alkyl esters, in contrast to other carboxylesterases so far studied. The amino acid composition of the purified enzyme is reported.
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321
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Scott K, Cannell GR, Zerner B. A computer program for processing data from amino acid analysis and for the calculation of molecular weights from those data. Anal Biochem 1975; 69:474-84. [PMID: 1217713 DOI: 10.1016/0003-2697(75)90149-9] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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322
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Inkerman PA, Scott K, Runnegar MT, Hamilton SE, Bennett EA, Zerner B. Carboxylesterases (EC 3.1.1). Purification and titration of chicken, sheep, and horse liver carboxylesterases. Can J Biochem 1975; 53:536-46. [PMID: 1139397 DOI: 10.1139/o75-074] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Chicken, sheep, and horse liver carboxylesterases have been purified by procedures involving ammonium sulfate fractionation, ion-exchange chromatography and gel filtration on Sephadex. The actual yields of the procedures described were as follows: chicken, 1 g from 2 kg of liver powder (chloroform-acetone); sheep, 200 mg from 400 g of powder (chloroform-acetone); horse, 230 mg from 800 g of powder (acetone). The purified enzymes are free of non-carboxyl-esterase protein as shown by gel electrophoresis, although they do contain electrophoretic variants. The equivalent weight of the chicken enzyme is 67,000 based on titration with p-nitrophenyl diethyl phosphate or bis(p-nitrophenyl) phosphate, whereas those of the sheep and horse enzymes are similar to 69,500 and similar to 70,000, respectively, based on titration with p-nitrophenyl dimethylcarbamate.
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323
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Abstract
The amino acid compositions of the carboxylesterases from chicken, ,orse, ox, sheep, and pig livers are reported and compared. As would be expected for this homologous series, the compositions show a general similarity. However, there are some significant differences, but the degree to which particular pairs of enzymes differ is consistent with the evolutionary history of the species from which they were isolated.
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324
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325
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Belgaumkar TK, Scott K. Effects of low humidity on small premature infants in servocontrol incubators. I. Decrease in rectal temperature. Biol Neonate 1975; 26:337-47. [PMID: 1174595 DOI: 10.1159/000240747] [Citation(s) in RCA: 25] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
19 small premature infants in servocontrol incubators, whose abdominal skin temperature was 36.0 +/- 0.3 degrees C, were subjected to alternate high- and low-humidity environments. With low humidity, rectal temperature dropped significantly below abdominal skin temperature. Skin was the predominant site of evaporative heat loss. The temperature was lower on naked skin than on an area covered by adhesive tape. Thus, servocontrol with low humidity increases evaporative heat loss and engenders a cycle of events that results in paradoxical body temperature decrease as the incubator temperature increases.
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326
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327
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Runnegar MT, Scott K, Webb EC, Zerner B. Carboxylesterases (EC 3.1.1). Purification and titration of ox liver carboxylesterase. Biochemistry 1969; 8:2013-8. [PMID: 5785222 DOI: 10.1021/bi00833a035] [Citation(s) in RCA: 32] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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328
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Scott K. Giles gaudineau and his medicines. Med Hist 1968; 12:278-80. [PMID: 16562270 PMCID: PMC1033830 DOI: 10.1017/s0025727300013326] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
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329
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Carrier C, Doray B, Hardyment A, Scott K, Segal S, Stern L, Swyer P. Canadian paediatric society: early feeding of the small premature infant. Can Med Assoc J 1968; 98:707. [PMID: 20329201 PMCID: PMC1924021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
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330
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331
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Naber EC, Scott K, Johnson RM. Relationships of divalent cations to experimental lathyrism and collagen formation. Fed Proc 1967; 26:121-8. [PMID: 6018915] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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332
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Naber EC, Scott K, Johnson RM. Effect of calcium on the incorporation of proline into hydroxyproline of collagen fractions from normal and lathyritic chick embryos. Poult Sci 1965; 44:1540-5. [PMID: 5863778 DOI: 10.3382/ps.0441540] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023] Open
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333
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334
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335
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336
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Abstract
The histological natUl'e of resistance of barley seedlings to infection hy EI'!l8illhe rrl'wninis val'. hOl'de'i is woll understood. Infootion b~' this obligato pal'asito causos marked bioehemical changes in the hosL These changos al'e expressed in an increased l'ospimtory rate. The pattei'll of l'oHpirator,Y ehallgo is differont. and typical for tho varietal typos tested and may be correlated with the ebsorvecl histological changes. This inoreasod respimtion may woll he duo to t.he formatioll, oit.hor by t.ho pathogen or by tho host pathogen oombination, of an agellL which uncouples diroetly 01' indirectly the coneomitant phosphorylations normally limiting tho l'cRpiratory rate.
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