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Ellis RM, Shelton DP. Vibration overtone hyperpolarizability measured for H 2. J Chem Phys 2020; 152:154301. [PMID: 32321264 DOI: 10.1063/5.0005233] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
The second hyperpolarizability (γ) of the H2 molecule was measured by gas-phase electric field induced second harmonic generation at the frequencies of the one-photon resonance for the 3-0 Q(J) overtone transitions (v, J = 0, J → 3, J for J = 0, 1, 2, and 3). The magnitude of the resonant contribution to γ was measured with 2% accuracy using the previously determined non-resonant γ for calibration. Pressure broadening and frequency shift for the transitions were also measured. A theoretical expression for the resonant vibrational γ contribution in terms of transition polarizabilities is compared to the observations. The measured γ resonance strength is 4%-14% larger than the results obtained from this theoretical expression evaluated using ab initio transition polarizabilities.
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Affiliation(s)
- Rachel M Ellis
- Department of Physics and Astronomy, University of Nevada, Las Vegas, Nevada 89154-4002, USA
| | - David P Shelton
- Department of Physics and Astronomy, University of Nevada, Las Vegas, Nevada 89154-4002, USA
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Jour G, Glitza IC, Ellis RM, Torres-Cabala CA, Tetzlaff MT, Li JY, Nagarajan P, Huen A, Aung PP, Ivan D, Drucker CR, Prieto VG, Rapini RP, Patel A, Curry JL. Autoimmune dermatologic toxicities from immune checkpoint blockade with anti-PD-1 antibody therapy: a report on bullous skin eruptions. J Cutan Pathol 2016; 43:688-96. [DOI: 10.1111/cup.12717] [Citation(s) in RCA: 105] [Impact Index Per Article: 13.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2015] [Revised: 02/10/2016] [Accepted: 04/09/2016] [Indexed: 12/14/2022]
Affiliation(s)
- George Jour
- Department of Pathology, Section of Dermatopathology; The University of Texas MD Anderson Cancer Center; Houston TX USA
| | - Isabella C. Glitza
- Department of Melanoma Medical Oncology; The University of Texas MD Anderson Cancer Center; Houston TX USA
| | - Rachel M. Ellis
- Department of Dermatology; University of Texas Medical School; Houston TX USA
| | - Carlos A. Torres-Cabala
- Department of Pathology, Section of Dermatopathology; The University of Texas MD Anderson Cancer Center; Houston TX USA
- Department of Dermatology; The University of Texas MD Anderson Cancer Center; Houston TX USA
| | - Michael T. Tetzlaff
- Department of Pathology, Section of Dermatopathology; The University of Texas MD Anderson Cancer Center; Houston TX USA
| | - Janet Y. Li
- Department of Dermatology; University of Texas Medical School; Houston TX USA
| | - Priyadharsini Nagarajan
- Department of Pathology, Section of Dermatopathology; The University of Texas MD Anderson Cancer Center; Houston TX USA
| | - Auris Huen
- Department of Melanoma Medical Oncology; The University of Texas MD Anderson Cancer Center; Houston TX USA
| | - Phyu P. Aung
- Department of Pathology, Section of Dermatopathology; The University of Texas MD Anderson Cancer Center; Houston TX USA
| | - Doina Ivan
- Department of Pathology, Section of Dermatopathology; The University of Texas MD Anderson Cancer Center; Houston TX USA
- Department of Dermatology; The University of Texas MD Anderson Cancer Center; Houston TX USA
| | - Carol R. Drucker
- Department of Melanoma Medical Oncology; The University of Texas MD Anderson Cancer Center; Houston TX USA
| | - Victor G. Prieto
- Department of Pathology, Section of Dermatopathology; The University of Texas MD Anderson Cancer Center; Houston TX USA
- Department of Dermatology; The University of Texas MD Anderson Cancer Center; Houston TX USA
| | - Ronald P. Rapini
- Department of Pathology, Section of Dermatopathology; The University of Texas MD Anderson Cancer Center; Houston TX USA
- Department of Dermatology; University of Texas Medical School; Houston TX USA
- Department of Dermatology; The University of Texas MD Anderson Cancer Center; Houston TX USA
| | - Anisha Patel
- Department of Dermatology; University of Texas Medical School; Houston TX USA
- Department of Dermatology; The University of Texas MD Anderson Cancer Center; Houston TX USA
| | - Jonathan L. Curry
- Department of Pathology, Section of Dermatopathology; The University of Texas MD Anderson Cancer Center; Houston TX USA
- Department of Dermatology; The University of Texas MD Anderson Cancer Center; Houston TX USA
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Chaudhry AA, Ellis RM, Hood AF. Tense bullae with widespread erosions. Cutis 2015; 95:E1-E3. [PMID: 25750969] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Affiliation(s)
| | - Rachel M Ellis
- Eastern Virginia Medical School, Department of Dermatology, 721 Fairfax Ave, Ste 200, Norfolk, VA 23507, USA.
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Ellis RM, Mohr MR, Oldfield EC, Hood AF. Recalcitrant herpetic scrotal ulcer as a manifestation of immune reconstitution inflammatory syndrome. J Am Acad Dermatol 2011; 65:456-457. [PMID: 21763588 DOI: 10.1016/j.jaad.2010.03.033] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2009] [Revised: 03/30/2010] [Accepted: 03/31/2010] [Indexed: 11/18/2022]
Affiliation(s)
- Rachel M Ellis
- Department of Dermatology, Eastern Virginia Medical School, Norfolk, Virginia
| | - Melinda R Mohr
- Department of Dermatology, Eastern Virginia Medical School, Norfolk, Virginia.
| | - Edward C Oldfield
- Department of Internal Medicine, Division of Infectious Diseases, Eastern Virginia Medical School, Norfolk, Virginia
| | - Antoinette F Hood
- Department of Dermatology, Eastern Virginia Medical School, Norfolk, Virginia
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Abstract
This study sought to identify barriers to treatment in children with chronic inflammatory skin disease, particularly those with atopic dermatitis, psoriasis, and acne vulgaris. Caregivers of 101 patients seen in the Children's Specialty Group Division of Dermatology, Children's Hospital of The King's Daughters, Norfolk, Virginia, completed an 11-item Likert scale questionnaire. This survey addressed complexity and time requirements for treatment, medication cost, vehicle formulation, perceived safety, and caregiver understanding of chronicity of skin disorders. Parents and caregivers indicated that adequate instructions for using the medications were provided but that they felt less comfortable with treating their child's skin disease during a severe flare. The complexity of treatment programs, time required to apply medications, and vehicle type were not considered prohibitive factors. Caregivers were concerned about the cost and safety of prescribed medications and had a less understanding of the chronicity of inflammatory skin disorders.
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Affiliation(s)
- Rachel M Ellis
- Department of Dermatology, Eastern Virginia Medical School, Norfolk, Virginia, USA.
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Howard J, Diallo A, Creese M, Blackwell BD, Allen SL, Ellis RM, Porter GD, Meyer W, Fenstermacher ME, Brooks NH, Van Zeeland ME, Boivin RL. Doppler coherence imaging and tomography of flows in tokamak plasmas (invited). Rev Sci Instrum 2010; 81:10E528. [PMID: 21034056 DOI: 10.1063/1.3492422] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
This article describes the results of spatial heterodyne Doppler "coherence imaging" of carbon ion flows in the divertor region of the DIII-D tokamak. Spatially encoded interferometric projections of doubly ionized carbon emission at 465 nm have been demodulated and tomographically inverted to obtain the spatial distribution of the carbon ion parallel flow and emissivity. The operating principles of the new instruments are described, and the link between measured properties and line integrals of the flow field are established. An iterative simultaneous arithmetic reconstruction procedure is applied to invert the interferometric phase shift projections, and the reconstructed parallel flow field amplitudes are found to be in reasonable agreement with UEDGE modeling.
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Affiliation(s)
- J Howard
- Plasma Research Laboratory, The Australian National University, Canberra 0200, Australia.
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McLean AG, Davis JW, Stangeby PC, Brooks NH, Ellis RM, Haasz AA, Rudakov DL, West WP, Whyte DG, Wong CPC. Porous plug gas injection systems for studies of hydrocarbon dissociation and transport in the DIII-D tokamak. Rev Sci Instrum 2009; 80:043501. [PMID: 19405654 DOI: 10.1063/1.3100180] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
A probe has been designed, constructed, and successfully used to inject methane into the DIII-D lower divertor in a manner imitating natural release by chemical erosion. This porous plug injector (PPI) probe consists of a self-contained gas reservoir with an integrated pressure gauge and a 3 cm diameter porous surface through which gas is injected into the lower divertor of the tokamak. The probe is positioned flush with the divertor target surface by means of the divertor materials evaluation system. Two gas delivery systems were developed: in the first, gas flow is regulated by a remotely controlled microvalve and in the second by a fixed micro-orifice flow restrictor. Because of the large area of the porous surface through which gas is admitted, the injected hydrocarbon molecules see a local carbon surface (>90% carbon) similar to that seen by hydrocarbons being emitted by chemical sputtering from surrounding carbon tiles. The distributed gas source also reduces the disturbance to the local plasma while providing sufficient signal for spectroscopic detection. In situ spectroscopic measurements with the PPI in DIII-D allow the direct calibration of response for measured plasma conditions from a known influx of gas.
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Affiliation(s)
- A G McLean
- Institute for Aerospace Studies, University of Toronto, 4925 Dufferin St., Toronto, Ontario M3H 5T6, Canada.
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Groth M, Ellis RM, Brooks NH, Fenstermacher ME, Lasnier CJ, Meyer WH, Moeller JM. Measurements of spatial line emission profiles in the main scrape-off layer of the DIII-D tokamak. Rev Sci Instrum 2009; 80:033505. [PMID: 19334920 DOI: 10.1063/1.3103575] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
A video camera system is described as that measures the spatial distribution of visible line emission emitted from the main scrape-off layer (SOL) of plasmas in the DIII-D tokamak. A wide-angle lens installed on an equatorial port and an in-vessel mirror, which intercepts part of the lens' view, provide simultaneous tangential views of the SOL on the low-field and high-field sides of the plasma's equatorial plane. Tomographic reconstruction techniques are used to calculate the two-dimensional (2D) poloidal profiles from the raw data, and one-dimensional (1D) poloidal profiles simulating chordal views of other optical diagnostics from the 2D profiles. The 2D profiles can be compared with SOL plasma simulations; the 1D profiles with measurements from spectroscopic diagnostics. Sample results are presented, which elucidate carbon transport in plasmas with toroidally uniform injection of methane and argon transport in disruption mitigation experiments with massive gas jet injection.
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Affiliation(s)
- M Groth
- Lawrence Livermore National Laboratory, P.O. Box 808, Livermore, California, 94551-0808, USA
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Becker GW, Miller JR, Kovacevic S, Ellis RM, Louis AI, Small JS, Stark DH, Roberts EF, Wyrick TK, Hoskins J. Characterization by electrospray mass spectrometry of human Ca(2+)-sensitive cytosolic phospholipase A2 produced in baculovirus-infected insect cells. Biotechnology (N Y) 1994; 12:69-74. [PMID: 7764328 DOI: 10.1038/nbt0194-69] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
The 85-kD cytosolic phospholipase A2 (cPLA2) is a novel receptor-regulated phospholipase that is thought to initiate the production of inflammatory lipid mediators. Since cPLA2 is present only in minute amounts (less than 0.01% of total cellular protein) in various cells and tissues, we have used the baculovirus expression system to produce sufficient quantities of cPLA2 for structural and functional analysis. The cDNA for cPLA2 was cloned into a baculovirus expression vector and, upon infection of Spodoptera frugiperda Sf-21 cells with the recombinant virus, cPLA2 was produced at high levels (9% of total cellular soluble protein). Gel electrophoresis and immunoblot analysis demonstrated that the recombinant protein has properties indistinguishable from cPLA2 present in human monocytic U937 cells. Structural analysis of recombinant cPLA2, using electrospray mass spectrometry in conjunction with automated sequence analysis, confirmed the expected sequence and revealed two post-translational modifications of the protein, phosphorylation on at least one site, and acetylation of the N-terminal serine residue after removal of the initiating methionine. In spite of the presence of six potential N-glycosylation sites, there is no evidence that any of them is glycosylated. The baculovirus expression system should prove useful for production of cPLA2, and electrospray mass spectrometry is a rapid and accurate method for the analysis of post-translational modifications.
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Affiliation(s)
- G W Becker
- Lilly Research Laboratories, Lilly Corporate Center, Indianapolis, IN 46285
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Clarke MR, Robertson JC, Gillies JH, Ellis RM. Effect of body posture and time on grip strength in patients with cervical spondylosis. Clin Biomech (Bristol, Avon) 1991; 6:123-6. [PMID: 23915486 DOI: 10.1016/0268-0033(91)90010-n] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/19/1990] [Accepted: 12/12/1990] [Indexed: 02/07/2023]
Abstract
Ninety-eight patients with cervical spondylosis were tested for grip strength in different spinal postures (standing and sitting), but with standard upper arm position. Unilateral symptoms of cervical spondylosis significantly affected grip strength in that arm whether or not it was the dominant upper limb, in contrast to normals. Grip strength is stronger in the standing position than in a sitting posture with the neck flexed (P < 0.01; at 10 min), and this effect is increased by duration in the posture.
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Affiliation(s)
- M R Clarke
- Wessex Regional Rehabilitation Unit, Odstock Hospital, Salisbury, UK
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Ellis RM. Low back pain: comparison of chiropractic and hospital outpatient treatment. West J Med 1990. [DOI: 10.1136/bmj.300.6740.1650] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Ellis RM, Quilligan JD, Williams NH, Yandell JK. Cobalt, Iron and Ruthenium Complexes of Picolinic and Dipicolinic Acids: Syntheses, Solution Properties and Kinetics of Electron Transfer Reactions With Cytochrome C(II) and Some Inorganic Reductants. Aust J Chem 1989. [DOI: 10.1071/ch9890001] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Tris picolinate complexes of CO111 and RU111 have been synthesized, and their standard potentials measured (432 �10, 403 �2 mV) at 25�C and ionic strength 0.1 mol dm-3. The self-exchange rate constant of Ru ( pic )3O/- was found to be (1 .4 �0.9)×108 dm3 mol-1 s-l, from reaction with cytochrome C(II), Co( bpy )32+ and ~Co( phen )32+. For the reaction between Fe( dipic )2- and cytochrome ~(II), at 2S260C, pH 5.5 and I 0.1 mol dm-3 (KNO3), the second-order rate constant was (3.2 �0.l)×105 dm3 mol-1 s-1,with ΔH+ 19.9 �0.9 kJ mol-1 and ΔS+ -72.8 �.7 J K-1 mol-l. The self-exchange rate constant of Fe( dipic )2-/2- was reevaluated as (5.8 �0.2)×106 dm3 mol-l s-1.
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Sittampalam GS, Ellis RM, Miner DJ, Rickard EC, Clodfelter DK. Evaluation of amino acid analysis as reference method to quantitate highly purified proteins. J Assoc Off Anal Chem 1988; 71:833-8. [PMID: 3047099] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
The applicability of amino acid analysis for accurate quantitation of reference standard preparations of proteins has been evaluated. This approach is very useful since, in addition to absolute quantitative information, it also provides a measure of composition, partial identity, and purity in a single experiment. Comparisons with Kjeldahl nitrogen assay and/or UV measurements shows that amino acid analysis is reliable for the quantitation of small-to-medium size proteins in the molecular weight range of 6-22 kDa. For larger proteins such as immunoglobulins (150 kDa), amino acid analysis may "underestimate" the total protein concentration. These results also show the effect of recovery of individual residues on protein quantitation. As expected, the recovery of more than one stable residue could be used to calculate total protein content of samples, which is in good agreement with the results obtained by Kjeldahl nitrogen assay. However, the protein concentrations calculated from the total mass of the recovered residues appear to give relatively low estimates in almost all cases. Thus, it is concluded that amino acid analysis is an appropriate reference method only when stable residues are employed for quantitation, particularly for highly purified proteins of rDNA origin.
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Affiliation(s)
- G S Sittampalam
- Eli Lilly and Co., Lilly Research Laboratories, Bioanalytical Development, Indianapolis, IN 46285
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Abstract
A culture identified as Streptomyces karnatakensis was found to produce a novel cyclic hexadepsipeptide antibiotic designated A83586C. The structure was elucidated by X-ray crystallography, and full 1H and 13C NMR assignments are reported. The absolute configuration was confirmed by the detection of D-threonine in the acid hydrolysate of A83586C. A83586C had potent Gram-positive activity in vitro but lacked in vivo efficacy in mice.
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Affiliation(s)
- T A Smitka
- Lilly Research Laboratories, Eli Lilly and Company, Indianapolis, Indiana 46285
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Ellis RM, Ryle A. Points: Learned pain behaviour. West J Med 1986. [DOI: 10.1136/bmj.292.6516.346-d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Ellis RM. Textbook of Orthopaedic Medicine. Vol. 2. Treatment by Manipulation, Massage and Injection. Ann Rheum Dis 1985. [DOI: 10.1136/ard.44.5.358] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Hollingworth GR, Ellis RM, Hattersley TS. Comparison of injection techniques for shoulder pain: results of a double blind, randomised study. Br Med J (Clin Res Ed) 1983; 287:1339-41. [PMID: 6416401 PMCID: PMC1549498 DOI: 10.1136/bmj.287.6402.1339] [Citation(s) in RCA: 59] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Seventy seven patients with soft tissue shoulder lesions including adhesive capsulitis and disorders of the rotator cuff and acromioclavicular joint were admitted to a trial comparing two different methods of corticosteroid injection with local anaesthetic in a randomly allocated double blind study. The method of anatomical injection after diagnosis by the technique of selective tissue tension gave 60% success compared with the method using tender or trigger point localisation, giving 20% success (p less than 0.001).
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Ellis RM. Planned giving revisited--as an investment alternative. J Natl Assoc Hosp Dev 1983:5, 7-8. [PMID: 10309710] [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: 02/12/2023]
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Ellis RM. Role and training of paramedical groups. Can Med Assoc J 1979; 120:524. [PMID: 436032 PMCID: PMC1818920] [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: 12/15/2022]
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Abstract
Allopurinol was administered to seven patients with gout to compare the effects of three different methods of administration. Allopurinol 100 mg given three times daily. Allopurinol given once daily as three 100 mg tablets. Allopurinol given once daily as a single 300 mg tablet. Allopurinol as a single dose in the morning gave as sustained control of plasma levels as did divided administration.
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Chance RE, Ellis RM, Bromer WW. Proinsulin: structure and physiologic significance. Panminerva Med 1970; 12:216-23. [PMID: 5472504] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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Abstract
Crystalline human insulin was prepared from human pancreas glands in relatively large amounts employing acid-ethanol extraction, fractional precipitation with salts and organic solvents, gel filtration, and crystallization from ammonium acetate buffer. The crystalline insulin had a potency of about 25 International Units per milligram. Polyacrylamide gel electrophoresis showed that the material consisted of a major component and several minor components similar to those usually observed in insulins derived from other species. Amino acid analyses of the crystalline material were consistent with the structure proposed for human insulin by Nicol and Smith.
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Abstract
Proinsulin in nearly homogeneous form has been isolated from a preparation of porcine insulin. A molecular weight close to 9100 was calculated from the amino acid composition and from sedimentation-equilibrium studies. Through the action of trypsin this single-chain protein is transformed to desalanine insulin by cleavage of a polypeptide chain connecting the carboxy-terminus of the B chain to the amino-terminus of the A chain of insulin. The amino acid sequence of this connecting peptide was found to be Arg-Arg-Glu-Ala-Gln-Asn-Pro-Gln-Ala-Gly-Ala-Val-Glu-Leu-Gly-Gly-Gly-Leu-Gly-Gly-Leu-Gln-Ala-Leu-Ala-Leu-Glu-Gly-Pro-Pro-Gln-Lys-Arg.
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