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Picard V, Ersdal-Badju E, Lu A, Bock SC. A rapid and efficient one-tube PCR-based mutagenesis technique using Pfu DNA polymerase. Nucleic Acids Res 1994; 22:2587-91. [PMID: 8041621 PMCID: PMC308213 DOI: 10.1093/nar/22.13.2587] [Citation(s) in RCA: 186] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023] Open
Abstract
A rapid method for efficiently generating site-directed mutations on a clean sequence background is described. This modification of the megaprimer PCR mutagenesis approach can be performed in one tube in less than 4.5 hours, and does not require purification of intermediate products. High fidelity of DNA sequence replication is obtained by employing Pfu DNA polymerase and limiting the total number of amplification cycles to 30. The mutagenesis efficiency of the procedure is high enough to allow rapid, direct identification of mutants by restriction digest or sequencing techniques.
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Bauer DA, Belcinski R, Berg RC, Bingham HH, Bloom ED, Buchanan CD, Caldwell DO, Chun SB, Clark AR, Dahl OI, Eastman JJ, Eberhard PH, Eisner AM, Fairfield KH, Godfrey G, Greenbaum GS, Hauptman JM, Hofmann W, Holtzapple RL, Khacheryan S, Knöpfle KT, Kofler RR, Lambert DJ, Loken SC, Lu A, Lynch GR, Lys JE, Madaras RJ, Marsiske H, Masek GE, Miller ES, Nicol NA, Nygren DR, Oyang YT, Paar HP, Palounek AP, Pellett DE, Ronan MT, Ross RR, Shapiro G, Stephens RW, Stevenson ML, Strauss MG, Sullivan MK, Vernon W, Wang EM, Wang YX, Wenzel WA, Yamamoto H, Yellin SJ, Yost GP, Zapalac G. Measurement of the kaon content of three-prong tau decays. PHYSICAL REVIEW. D, PARTICLES AND FIELDS 1994; 50:R13-R17. [PMID: 10017569 DOI: 10.1103/physrevd.50.r13] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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228
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Lu A, Chan L. Getting the most out of low-dose syringe prefilling of a high-cost biotechnology agent. Hosp Pharm 1994; 29:353, 356-7. [PMID: 10133464] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/11/2023]
Abstract
The recent increased usage of high-cost biotechnology agents has placed a tremendous impact on the hospital pharmacy budget. One approach in improving cost containment is to minimize waste during the preparation of these agents. This is particularly practical and possible in the process of low-dose syringe repackaging of Sargramostim (GM-CSF) used for the treatment of neutropenia. In search of ways to reduce waste, this study looked into the dos and don'ts of repackaging this agent in syringes. Decreased waste is very significant if GM-CSF is properly reconstituted with bacteriostatic water for injection and if a syringe equipped with a permanently attached needle is used. Another 10% of the solution from each vial could be saved if the solution is withdrawn with a technique involving the vial in a right-side-up position.
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Muto P, Freeman RB, Haug CE, Lu A, Rohrer RJ. Liver transplant candidate stratification systems. Implications for third-party payors and organ allocation. Transplantation 1994; 57:306-8. [PMID: 8310528] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
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230
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Bauer DA, Belcinski R, Berg RC, Bingham HH, Buchanan CD, Caldwell DO, Chun SB, Clark AR, Dahl OI, Daoudi M, Eastman JJ, Eisner AM, Fairfield KH, Godfrey G, Greenbaum GS, Hauptman JM, Hofmann W, Holtzapple RL, Khacheryan S, Knöpfle KT, Kofler RR, Lambert DJ, Layter JG, Lin WT, Loken SC, Lu A, Lynch GR, Lys JE, Madaras RJ, Masek GE, Miller ES, Nicol NA, Nygren DR, Oyang JY, Paar HP, Palounek AP, Pellett DE, Ronan MT, Ross RR, Shapiro G, Shen BC, Stephens RW, Stevenson ML, Strauss MG, Sullivan MK, Vernon W, Wang EM, Wang YX, Wenzel WA, Yamamoto H, Yellin SJ, Yost GP, Zapalac G, Zeitlin C. Evidence for spin-one resonance production in the reaction gamma gamma *--> pi + pi - pi 0 pi 0. PHYSICAL REVIEW. D, PARTICLES AND FIELDS 1993; 48:3976-3986. [PMID: 10016677 DOI: 10.1103/physrevd.48.3976] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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231
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Lu A, Carstens EB. Immediate-early baculovirus genes transactivate the p143 gene promoter of Autographa californica nuclear polyhedrosis virus. Virology 1993; 195:710-8. [PMID: 8337840 DOI: 10.1006/viro.1993.1422] [Citation(s) in RCA: 83] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
Trans-acting regulatory components of Autographa californica nuclear polyhedrosis virus (AcMNPV) were studied in a transient assay system for their ability to activate the p143 gene promoter. A region including 502 nt upstream of the AUG of the p143 gene was linked to the bacterial chloramphenicol acetyltransferase (CAT) gene. The p143 promoter-CAT construct was used to identify AcMNPV immediate-early gene products required for expression from the p143 gene early promoter. Transient expression assays in uninfected Spodoptera frugiperda cells indicated that the IE-1 gene product was capable of transactivating the p143 gene promoter and this activation was augmented by the IE-N gene product. In addition, another immediate-early gene, PE-38, was shown to mediate transactivation of the p143 gene promoter but not the 39K delayed early gene promoter. Deletions to -187 bp relative to the p143 RNA start site did not significantly affect promoter activity in the combined presence of IE-1 and the HindIII-F fragment. However, a deletion to -52 bp decreased promoter activity by 40%. In contrast, in the presence of ts8 DNA at 33 degrees, deletions to -52 bp decreased promoter activity by 80% suggesting that additional viral factors were involved in p143 gene promoter regulation.
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Pang SC, Chan PJ, Lu A. Effects of pentoxifylline on sperm motility and hyperactivation in normozoospermic and normokinetic semen. Fertil Steril 1993; 60:336-43. [PMID: 8339834 DOI: 10.1016/s0015-0282(16)56108-1] [Citation(s) in RCA: 38] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
OBJECTIVE To determine the effects of in vitro incubation with pentoxifylline on sperm motion characteristics of spermatozoa from normozoospermic, normokinetic specimens. DESIGN Prospective, controlled experiment. SETTING Andrology laboratory, university-based fertility center. PARTICIPANTS Healthy, untreated male partners of couples attending the fertility center. INTERVENTION Each specimen was washed, pelleted by centrifugation, then resuspended in human tubal fluid medium (HTF). Two portions were incubated at 37 degrees C, one with pentoxifylline (final concentration = 1 mg/mL = 3.6 mM) and the other without pentoxifylline (control). After 1 hour, the pentoxifylline-treated portion was divided: one half was washed to remove pentoxifylline, then further incubated in HTF; the other half remained incubated in HTF with pentoxifylline. MAIN OUTCOME MEASURES Motility, hyperactivation, amplitude of lateral head displacement (ALH), curvilinear velocity (VCL), straight line velocity (VSL), linearity (LIN), beat-cross frequency. RESULTS Incubation with pentoxifylline did not increase motility, VSL, LIN, or beat-cross frequency but did significantly increase HA, VCL, and ALH at 1, 2, and 4 hours, compared with control. Incubation in control medium without pentoxifylline did not significantly increase any of the parameters measured. After 24 hours of incubation with or without pentoxifylline, all parameters measured were significantly decreased, with the exception of LIN. CONCLUSIONS Pentoxifylline does not increase percentage motility of washed spermatozoa in capacitation medium. Enhancement of sperm HA by pentoxifylline in capacitation medium occurs with normozoospermic, normokinetic semen specimens. This effect persists for up to 4 hours when pentoxifylline is removed from the medium after 1 hour of incubation.
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Tian Y, Fang Y, Luo Q, Shen M, Lu A, Shen W. The inhibitory effects of 21 mimics of superoxide dismutase on luminol-mediated chemiluminescence emitted from PMA-stimulated polymorphonuclear leukocyte. Free Radic Biol Med 1992; 13:533-41. [PMID: 1459477 DOI: 10.1016/0891-5849(92)90148-a] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Four groups comprising 21 superoxide dismutase (SOD) mimics synthesized by us were comparatively studied for their inhibitory effects on luminol-mediated chemiluminescence emitted from phorbol myristate acetate (PMA)-stimulated polymorphonuclear leukocyte (PMNL). Among these groups, 20-membered macrocyclic bicopper(II) complexes and 13-membered macrocyclic dioxotetramine copper(II) complexes exhibited relatively higher activities of scavenging reactive oxygen species (ROS) produced by PMA-stimulated PMNL as compared with polyamine Cu(II)-Zn(II) complexes and copper(II) complexes of bis-shiff-base. Moreover, distinctly different effects of SOD mimics in the biological system have been found even in the same group. It is suggested that the biological effects of some SOD mimics are related to their structures.
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234
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Lu A, Carstens EB. Nucleotide sequence and transcriptional analysis of the p80 gene of Autographa californica nuclear polyhedrosis virus: a homologue of the Orgyia pseudotsugata nuclear polyhedrosis virus capsid-associated gene. Virology 1992; 190:201-9. [PMID: 1529529 DOI: 10.1016/0042-6822(92)91206-a] [Citation(s) in RCA: 37] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
The 67.2- to 68.5-m.u. region of Autographa californica nuclear polyhedrosis virus was sequenced. A large open reading frame (ORF) was identified in the clockwise direction on the circular genome map which could potentially encode an 80-kDa polypeptide. Analysis of the predicted amino acid sequence of this ORF indicated that it was a homologue of the p87 capsid-associated gene of Orgyia pseudotsugata MNPV with an overall amino acid similarity of 34.3%. A late transcript of 2.1 kb was mapped to this open reading frame. An antisense 3.1-kb transcript partially overlapped the 5' end of the 2.1-kb RNA. Anti-extracellular virus sera reacted with a fusion protein consisting of a portion of the AcMNPV p80 gene fused to the bacterial trpE gene product, suggesting that the AcMNPV p80 gene product was also a component of the virus capsid.
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Lu A, Oba T, Yamano S, Sako T, Yamaguchi M. Silver-induced frog skeletal muscle contraction and its modulation by calcium antagonists nifedipine and felodipine and calcium agonist Bay K 8644. GENERAL PHARMACOLOGY 1992; 23:747-52. [PMID: 1383075 DOI: 10.1016/0306-3623(92)90160-l] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
1. Ag+ induces one phase of a transient contracture in frog skeletal muscle (0.3-10 microM) and potentiates twitch tension when the fiber is given continuous stimulation. 2. The potentiation of fiber contraction by Ag+ is similar to the effect of Ca2+ antagonists nifedipine and felodipine. 3. Bay K 8644 (100 nM) potentiates and accelerates Ag(+)-induced tension development and the inactivation occurs more rapidly than in the control (Ag+ alone). 4. Two factors can be considered to be essential for the induction of Ag+ contracture: (1) a certain number of Ag+ ions must bind to free SH groups of the voltage sensor; and (2) the binding must occur within a limited time to raise the mechanical threshold to induce contracture. 5. All results suggest that Ag+ binding to crucial SH groups on the Ca2+ channel may be responsible for the activation of muscle contraction, potentiation, and the inhibition of excitation-contraction coupling in skeletal muscle.
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Li P, Lu A, Ma B, Wei J. [Chemical constituents of Actinidia kolomikta (Rupr. et Maxim.) Planch]. ZHONGGUO ZHONG YAO ZA ZHI = ZHONGGUO ZHONGYAO ZAZHI = CHINA JOURNAL OF CHINESE MATERIA MEDICA 1992; 17:420-1, 446. [PMID: 1445647] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Two crystalline components I and II were isolated from the roots of Actinidia kolomikta. I was identified as delta 7-stigmasterol and II was named alpha-kolomiktriose and elucidated as 2, 3-di-0-beta-D-galactopyranosyl-alpha-D-galactopyranose on the basis of spectral data (13C NMR, 1H NMR, IR and EI-MS).
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Lu A, Carstens EB. Transcription analysis of the EcoRI D region of the baculovirus Autographa californica nuclear polyhedrosis virus identifies an early 4-kilobase RNA encoding the essential p143 gene. J Virol 1992; 66:655-63. [PMID: 1731106 PMCID: PMC240764 DOI: 10.1128/jvi.66.2.655-663.1992] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
We have investigated the transcriptional activity of the 60.1- to 68.3-map-unit region of the baculovirus Autographa californica nuclear polyhedrosis virus (AcMNPV). Twelve transcripts mapping to this region were expressed at various times during infection. An early 4.0-kb transcript, potentially coding for a 143-kDa peptide essential for viral DNA replication, was maximally abundant at 6 h postinfection (p.i.). Transcripts of 0.5, 1.1, 1.4, 2.1, and 3.1 kb were most abundant at 12 h p.i., while two large transcripts of 5.2 and 6.8 kb were expressed maximally at 24 h p.i. In the presence of cycloheximide, and in ts8-infected cells at the nonpermissive temperature, only the 4.0-kb RNA was expressed. Northern (RNA) blot analysis using DNA subfragments from the EcoRI D fragment as probes suggested that many of the transcripts overlapped. Strand-specific cRNA probes revealed that the majority of the RNAs were transcribed in the counterclockwise direction. S1 nuclease and primer extension analysis were used to map the 5' ends of transcripts coded within the 60.1- to 64.8-map-unit region. Mapping of the 3' ends of the 1.1-, 4.0-, 5.2-, and 6.8-kb transcripts suggested that these RNAs were all coterminal at their 3' ends. A minicistron was found between the early 4.0-kb transcription start site and the predicted ATG start codon of the p143 gene. Several similar sequence motifs were identified in the promoter regions of the p143 gene and the AcMNPV DNA polymerase gene.
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Oba T, Aoki T, Lu A, Yamaguchi M. Partial inhibition of skeletal muscle contraction by dantrolene sodium and its modification with perchlorate and Bay K 8644. Can J Physiol Pharmacol 1992; 70:225-32. [PMID: 1381661 DOI: 10.1139/y92-028] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
The effects of dantrolene sodium (DAN) on the dihydropyridine receptor (DHPR) of the transverse (T) tubule voltage sensor (Ca2+ channel) was studied with single fibers from bullfrog toe muscle. Perchlorate (ClO4-), which acts selectively on the DHPR, overcame DAN-induced inhibition of twitch tension. Bay K 8644, a DHPR agonist, slowed the rate of twitch inhibition by DAN. DAN inhibited twitch tension to a greater extent in Ca(2+)-free solution than in Ringer solution or solution containing Zn2+, whereas twitch inhibition by DAN was less in caffeine-containing solution than in the control. The effects of DAN on Zn(2+)- and caffeine-treated fibers and on fibers in Ca(2+)-free solution suggest that DAN must act near the voltage sensor of the T tubule. However, differences in net twitch inhibition by DAN between control fibers and fibers potentiated by ClO4- or Bay K 8644 suggest that DAN does not bind to the same site as these potentiating agents do. The role of myoplasmic Ca2+ in DAN-induced inhibition of twitch and the effects of DAN on the mechanical threshold and membrane potential in skeletal muscle are discussed.
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Moldéus P, Berlin RG, Lu A, Castagnoli N, Carlsson E, Andersson T. P450/losec. Gastroenterology 1991; 100:1488-9. [PMID: 2013402] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/02/2022]
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240
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Aihara H, Alston-Garnjost M, Avery RE, Barker AR, Bauer DA, Bay A, Belcinski R, Bingham HH, Bloom ED, Buchanan CD, Caldwell DO, Chao HY, Chun SB, Clark AR, Cowan GD, Crane DA, Dahl OI, Daoudi M, Derby KA, Eastman JJ, Eberhard PH, Edberg TK, Eisner AM, Erné FC, Fairfield KH, Fridman A, Godfrey G, Hauptman JM, Ho C, Hofmann W, Kamae T, Kenney RW, Khacheryan S, Kofler RR, Lambert DJ, Langeveld WG, Layter JG, Lin WT, Linde FL, Loken SC, Lu A, Lynch GR, Lys JE, Madaras RJ, Magnuson BD, Marsiske H, Masek GE, Mathis LG, Maxfield SJ, Miller ES, Nicol NA, Nygren DR, Oddone PJ, Oh H, Oyang YT, Paar HP, Palounek AP, Park SK, Pellett DE, Pripstein M, Ronan MT, Ross RR, Rouse FR, Schwitkis KA. Test of spin dependence in charm-quark fragmentation to D*. PHYSICAL REVIEW. D, PARTICLES AND FIELDS 1991; 43:29-33. [PMID: 10013225 DOI: 10.1103/physrevd.43.29] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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241
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Carstens EB, Lu A. Nucleotide sequence and transcriptional analysis of the HindIII P region of a temperature-sensitive mutant of Autographa californica nuclear polyhedrosis virus. J Gen Virol 1990; 71 ( Pt 12):3035-40. [PMID: 2273394 DOI: 10.1099/0022-1317-71-12-3035] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
DNA sequence analysis of the HindIII P region of a temperature-sensitive mutant of Autographa californica nuclear polyhedrosis virus confirmed the specific amplification of 1.4 kb of viral DNA from this region of the genome. The sequenced region included an open reading frame, translated in a counterclockwise direction, which would potentially encode a 74K protein. The amplified DNA was contained within this open reading frame, resulting in in-frame amplifications of a domain within the protein. Transcription studies revealed the presence of a ladder of viral RNA species corresponding to a 2.5 kb transcript carrying tandem repeats of about 1.4 kb. This indicated that the duplicated DNA was transcribed in the same orientation as the p10 gene. We predict that transcripts synthesized from the opposite DNA strand also consist of a ladder of related mRNAs which would be translated to produce a family of p74 proteins with multiple internal domains.
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Aihara H, Alston-Garnjost M, Avery RE, Barker AR, Bauer DA, Bay A, Belcinski R, Bingham HH, Bloom ED, Buchanan CD, Caldwell DO, Chao HY, Chun SB, Clark AR, Cowan GD, Crane DA, Dahl OI, Daoudi M, Derby KA, Eastman JJ, Eberhard PH, Edberg TK, Eisner AM, Erné FC, Fairfield KH, Fridman A, Godfrey G, Hauptman JM, Ho C, Hofmann W, Kamae T, Kenney RW, Khacheryan S, Kofler RR, Lambert DJ, Langeveld WG, Layter JG, Lin WT, Linde FL, Loken SC, Lu A, Lynch GR, Lys JE, Madaras RJ, Magnuson BD, Marsiske H, Masek GE, Mathis LG, Maxfield SJ, McNeil RR, Miller ES, Nicol NA, Nygren DR, Oddone PJ, Oh H, Oyang YT, Paar HP, Palounek AP, Park SK, Pellett DE, Pripstein M, Ronan MT, Ross RR, Rouse FR. Measurement of the total hadronic cross section in tagged gamma gamma reactions. PHYSICAL REVIEW. D, PARTICLES AND FIELDS 1990; 41:2667-2674. [PMID: 10012660 DOI: 10.1103/physrevd.41.2667] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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243
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Aihara H, Alston-Garnjost M, Avery RE, Barbaro-Galtieri A, Barker AR, Barnett BA, Bauer DA, Bay A, Bobbink GJ, Buchanan CD, Buijs A, Caldwell DO, Chao HY, Chun SB, Clark AR, Cowan GD, Crane DA, Dahl OI, Daoudi M, Derby KA, Eastman JJ, Eberhard PH, Edberg TK, Eisner AM, Erné FC, Fairfield KH, Hauptman JM, Hofmann W, Hylen J, Kamae T, Kaye HS, Kenney RW, Khacheryan S, Kofler RR, Langeveld WG, Layter JG, Lin WT, Linde FL, Loken SC, Lu A, Lynch GR, Madaras RJ, Magnuson BD, Masek GE, Mathis LG, Matthews JA, Maxfield SJ, Miller ES, Moses W, Nygren DR, Oddone PJ, Paar HP, Park SK, Pellett DE, Pripstein M, Ronan MT, Ross RR, Rouse FR, Schwitkis KA, Sens JC, Shapiro G, Shen BC, Smith JR, Steinman JS. Investigation of the electromagnetic structure of eta and eta ' mesons by two-photon interactions. PHYSICAL REVIEW LETTERS 1990; 64:172-175. [PMID: 10041668 DOI: 10.1103/physrevlett.64.172] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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244
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Dakubu S, Hale R, Lu A, Quick J, Solas D, Weinberg J. Time-resolved pulsed fluorescence immunometric assays of carcinoembryonic antigen. Clin Chem 1988. [DOI: 10.1093/clinchem/34.11.2337] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Abstract
A time-resolved pulsed fluorescence immunometric assay (TR-PFIA) for carcinoembryonic antigen is described in which either Eu(III) or Tb(III) chelate is used as label. Described in detail is the assay involving the well-documented format of microtiter matrix and Eu(III) fluorescence enhanced with a beta-diketone and quantified in a commercial time-resolving fluorometer. We have also used the same basic assay, but one with a Tb(III) chelate as label, and we read the fluorescence signal directly off a surface without the application of enhancement solution. The Tb(III) fluorescence is then brought into solution by using an analog of dipicolinic acid in an enhancement solution. The latter approach demonstrates the scope of the methodology, which invokes the extra complexity of enhancement only when increased sensitivity might be required. The power and versatility of the enhancement methodology are demonstrated.
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Dakubu S, Hale R, Lu A, Quick J, Solas D, Weinberg J. Time-resolved pulsed fluorescence immunometric assays of carcinoembryonic antigen. Clin Chem 1988; 34:2337-40. [PMID: 3052929] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
A time-resolved pulsed fluorescence immunometric assay (TR-PFIA) for carcinoembryonic antigen is described in which either Eu(III) or Tb(III) chelate is used as label. Described in detail is the assay involving the well-documented format of microtiter matrix and Eu(III) fluorescence enhanced with a beta-diketone and quantified in a commercial time-resolving fluorometer. We have also used the same basic assay, but one with a Tb(III) chelate as label, and we read the fluorescence signal directly off a surface without the application of enhancement solution. The Tb(III) fluorescence is then brought into solution by using an analog of dipicolinic acid in an enhancement solution. The latter approach demonstrates the scope of the methodology, which invokes the extra complexity of enhancement only when increased sensitivity might be required. The power and versatility of the enhancement methodology are demonstrated.
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Aihara H, Alston-Garnjost M, Avery RE, Barbaro-Galtieri A, Barker AR, Barnett BA, Bauer DA, Bay A, Bobbink GJ, Buchanan CD, Buijs A, Caldwell DO, Chao H, Chun S, Clark AR, Cowan GD, Crane DA, Dahl OI, Daoudi M, Derby KA, Eastman JJ, Eberhard PH, Edberg TK, Eisner AM, Enomoto R, Erné FC, Fairfield KH, Hauptman JM, Hofmann W, Hylen J, Kamae T, Kaye HS, Kenney RW, Khacheryan S, Kofler RR, Langeveld WG, Layter JG, Lin WT, Linde FL, Loken SC, Lu A, Lynch GR, Madaras RJ, Magnuson BD, Masek GE, Mathis LG, Matthews JA, Maxfield SJ, Miller ES, Moses W, Nygren DR, Oddone PJ, Paar HP, Park SK, Pellett DE, Pripstein M, Ronan MT, Ross RR, Rouse FR, Schwitkis KA, Sens JC, Shapiro G, Shen BC, Smith JR. Charged-hadron inclusive cross sections and fractions in e+e- annihilation at sqrt s =29 GeV. PHYSICAL REVIEW LETTERS 1988; 61:1263-1266. [PMID: 10038747 DOI: 10.1103/physrevlett.61.1263] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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247
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Aihara H, Alston-Garnjost M, Avery RE, Barbaro-Galtieri A, Barker AR, Barnett BA, Bauer DA, Bay A, Bengtsson HU, Bobbink GJ, Buchanan CD, Buijs A, Caldwell DO, Chao HY, Chun SB, Clark AR, Cowan GD, Crane DA, Dahl OI, Daoudi M, Derby KA, Eastman JJ, Eberhard PH, Edberg TK, Eisner AM, Enomoto R, Erné FC, Fairfield KH, Hauptman JM, Hofmann W, Hylen J, Kamae T, Kaye HS, Kenney RW, Khacheryan S, Kofler RR, Langeveld WG, Layter JG, Lin WT, Linde FL, Loken SC, Lu A, Lynch GR, Madaras RJ, Magnuson BD, Masek GE, Mathis LG, Matthews JA, Maxfield SJ, Miller ES, Moses W, Nygren DR, Oddone PJ, Paar HP, Park SK, Pellett DE, Pripstein M, Ronan MT, Ross RR, Rouse FR, Schwitkis KA, Sens JC, Shapiro G, Shen BC. Formation of spin-one mesons by photon-photon fusion. PHYSICAL REVIEW. D, PARTICLES AND FIELDS 1988; 38:1-18. [PMID: 9958992 DOI: 10.1103/physrevd.38.1] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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Aihara H, Alston-Garnjost M, Avery RE, Barbaro-Galtieri A, Barker AR, Barnett BA, Bauer DA, Bay A, Bengtsson H, Bobbink GJ, Buchanan CD, Buijs A, Caldwell DO, Chao H, Chun S, Clark AR, Cowan GD, Crane DA, Dahl OI, Daoudi M, Derby KA, Eastman JJ, Eberhard PH, Edberg TK, Eisner AM, Enomoto R, Erné FC, Fairfield KH, Hauptman JM, Hofmann W, Hylen J, Kamae T, Kaye HS, Kenney RW, Khacheryan S, Kofler RR, Langeveld WG, Layter JG, Lin WT, Linde FL, Loken SC, Lu A, Lynch GR, Madaras RJ, Magnuson BD, Masek GE, Mathis LG, Matthews JA, Maxfield SJ, Miller ES, Moses W, Nygren DR, Oddone PJ, Paar HP, Park SK, Pellett DE, Pripstein M, Ronan MT, Ross RR, Rouse FR, Schwitkis KA, Sens JC, Shapiro G, Shen BC. Charmonium production in photon-photon collisions. PHYSICAL REVIEW LETTERS 1988; 60:2355-2358. [PMID: 10038330 DOI: 10.1103/physrevlett.60.2355] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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Abstract
We measured central corneal thickness in 89 pregnant women. It was increased 16 micron (P = .01) compared to the control eyes of 18 nongravid and 17 postpartum women. There was no significant difference (P = .79) in corneal thickness between the nongravid and postpartum groups. When comparing subjects by week of gestation, there was no trend over time in corneal thickness (analysis by linear regression). Intraocular pressure was lowered during pregnancy, but it did not correlate with corneal thickness for either the pregnant or nonpregnant group.
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Aihara H, Alston-Garnjost M, Avery RE, Barbaro-Galtieri A, Barker AR, Barnes AV, Barnett BA, Bauer DA, Bengtsson H, Bintinger DL, Bobbink GJ, Bolognese TS, Bross AD, Buchanan CD, Buijs A, Caldwell DO, Clark AR, Cowan GD, Crane DA, Dahl OI, Derby KA, Eastman JJ, Eberhard PH, Edberg TK, Eisner AM, Enomoto R, Erné FC, Fujii T, Gary JW, Gorn W, Hauptman JM, Hofmann W, Huth JE, Hylen J, Kamae T, Kaye HS, Kees KH, Kenney RW, Kerth LT, Ko W, Koda RI, Kofler RR, Kwong KK, Lander RL, Langeveld WG, Layter JG, Linde FL, Lindsey CS, Loken SC, Lu A, Lu XQ, Lynch GR, Madaras RJ, Maeshima K, Magnuson BD, Marx JN, Masek GE, Mathis LG, Matthews JA, Maxfield SJ, Melnikoff SO, Miller ES, Moses W, McNeil RR. Production of four-prong final states in photon-photon collisions. PHYSICAL REVIEW. D, PARTICLES AND FIELDS 1988; 37:28-40. [PMID: 9958516 DOI: 10.1103/physrevd.37.28] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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