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  • 1
    Electronic Resource
    Electronic Resource
    Narcotic cuing and analgesic activity of narcotic analgesics: Associative and dissociative characteristics (1978)
    Springer
    Psychopharmacology 57 (1978), S. 21-26 
    Details
    ISSN: 1432-2072
    Keywords: Fentanyl ; Narcotic cue ; Analgesia ; Drug discrimination
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract By using a discrete-trial, two-lever, food-reinforced discrimination learning paradigm, rats were trained to discriminate the narcotic analgesic fentanyl (0.04 mg/kg) from saline. Stimulus generalization experiments with lower fentanyl doses (0.0025 to 0.02 mg/kg) were carried out to generate individual threshold doses. The latter were compared with the sensitivity of the same rats to the analgesic effect of fentanyl, and it was found that there is no correlation between these two sets of data. In a time-effect experiment, the duration of fentanyl's cuing effect was compared with that of its analgesic effect, and it was found that the time-effect characteristics of the narcotic cue are similar to those of analgesia. Again, however, there was no correlation between the duration of both effects within the same group of animals. The results further deliniate the associative and dissociative characteristics of the narcotic cue and narcotic analgesia.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00426952
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  • 2
    Electronic Resource
    Electronic Resource
    Changes of sensitivity to the cuing properties of narcotic drugs as evidenced by generalization and cross-generalization experiments (1978)
    Springer
    Psychopharmacology 58 (1978), S. 257-262 
    Details
    ISSN: 1432-2072
    Keywords: Fentanyl ; Morphine ; Narcotic cue ; Sensitivity ; Oscillation ; Drug discrimination
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract With a discrete-trial, food-reward, two-lever procedure, rats were trained to discriminate 0.04 mg/kg fentanyl from saline. Individual threshold doses for seneralization of fentanyl and for cross-generalization of morphine were determined repeatedly during a 17-week posttraining period. Threshold doses of both drugs almost continuously shifted in both the up- and downward direction. Shifts of fentanyl threshold doses covaried with those of morphine threshold doses. These shifts can best be described by a sustained oscillation, the mean amplitude of which amounts to a factor 3.65 of the dose-range for fentanyl, and to a factor 1.85 for morphine. The upper and lower limits of oscillation were symmetrical with respect to baseline. The oscillation can be described by a function expressing that the more distant a point along the function is from the baseline, the more it is susceptible to (positive/negative) acceleration along the intensity (i.e., dose) axis.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00427388
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  • 3
    Electronic Resource
    Electronic Resource
    Differential haloperidol effect on two indices of fentanyl-saline discrimination (1977)
    Springer
    Psychopharmacology 53 (1977), S. 169-173 
    Details
    ISSN: 1432-2072
    Keywords: Haloperidol ; Fentanyl ; Drug discrimination ; Narcotic cue ; Discrimination index
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Using a discrete-trial, two-lever, foodreward discrimination learning paradigm, we trained rats (n=6) to discriminate 0.04 mg/kg fentanyl (s.c. t-30′) from saline. Stimulus generalization experiments with an adequate dose range (0.01–0.04 mg/kg) of fentanyl revealed that the ED50 value for drug lever selection is 0.02 mg/kg, irrespective of whether the animals were pretreated (s.c., t-60′) with either saline or 0.08 mg/kg haloperidol. With increasing doses of the haloperidol-fentanyl combination, the percentage of total responding on the selected lever progressively decreased, and reached the 50% level at the highest drug combination. It is concluded that this percentage is heavily contaminated by factors unrelated to the discrimination condition being studied; these factors seem to invalidate this percentage as a discrimination index under experimental conditions (e.g., behaviorally toxic doses of drugs) where they are likely to operate. The use of response selection as a discrimination index in drug discrimination research is further argued.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00426488
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  • 4
    Electronic Resource
    Electronic Resource
    Agonist and antagonist effects of prototype opiate drugs in fentanyl dose-dose discrimination (1986)
    Springer
    Psychopharmacology 90 (1986), S. 222-228 
    Details
    ISSN: 1432-2072
    Keywords: Drug discrimination ; Dose-dose discrimination ; Opiates ; Fentanyl ; Morphine ; Naloxone ; Rat
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract The experiments characterized the effects of fentanyl, morphine, naloxone, cyclazocine, nalorphine, ketocyclazocine and N-allylnormetazocine in rats that were trained to discriminate 0.04 mg/kg from 0.02 mg/kg fentanyl (dose-dose discrimination). The data are compared to results obtained previously in rats discriminating 0.04 mg/kg fentanyl from saline (drug-saline discrimination). In the dose-dose discrimination fentanyl and morphine produced responding appropriate to 0.04 mg/kg fentanyl at doses which were 3.0- and 1.6-fold higher, respectively, than in drug-saline discrimination. Naloxone antagonized the stimulus effects of 0.04 mg/kg fentanyl at 9.8-fold lower doses than in drug-saline discrimination. The dose-effect curves of fentanyl and naloxone in rats discriminating 0.04 mg/kg from 0.02 mg/kg fentanyl, were steeper than in rats discriminating 0.04 mg/kg fentanyl from saline. While cyclazocine, nalorphine and N-allylnormetazocine acted as mixed and partial agonists/antagonists in drug-saline discrimination, those compounds acted as pure and complete antagonists of 0.04 mg/kg fentanyl in dose-dose discrimination. The rank order of compounds in antagonizing the stimulus effects of 0.04 mg/kg fentanyl in dose-dose discrimination was naloxone 〉 N-allylnormetazocine 〉 cyclazocine 〉 nalorphine. It is suggested that a greater magnitude of opiate activity is required for producing generalization with the same 0.04 mg/kg dose of fentanyl in dose-dose as compared with drug-saline discrimination. Dose-dose discrimination may afford a more accurate method than drug-saline discrimination for assessing the equivalence of the discriminative stimulus properties of drugs. The data obtained in the present study are consistent with the hypothesis that the discriminative stimulus effects of the opiate compounds studied are mediated by a molecular mechanism involving only a single opiate receptor.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00181246
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  • 5
    Electronic Resource
    Electronic Resource
    T-Cell lymphoma cell lines (HUT102 and HUT78) established at the National Cancer Institute: History and importance to understanding the biology, clinical features, and therapy of cutaneous T-cell lymphomas (CTCL) and adult T-cell leukemia-lymphomas (ATLL) (1996)
    New York, N.Y. : Wiley-Blackwell
    Journal of Cellular Biochemistry 63 (1996), S. 12-23 
    Details
    ISSN: 0730-2312
    Keywords: CTCL ; Sezary ; HTLV-I ; HIV ; IL-2 ; Life Sciences ; Molecular Cell Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Chemistry and Pharmacology , Medicine
    Notes: Efforts at the National Cancer Institute to generate continuous in vitro cultures from patients with mycosis fungoides and the Sezary syndrome, neoplasms with a mature T-helper phenotype, led to the establishment of two cell lines, HUT78 and HUT102. Further characterization of these cell lines led to the identification of the first human retrovirus, HTLV-1, in the HUT102 cells, and the clinical description of the syndrome of HTLV-1 associated acute T-cell leukemia/lymphoma; the serum antibody test to screen for this virus was developed from the serum of the patient from whom the cell line was derived. The HUT78 cell line was pivotal in the identification and characterization of the HIV retrovirus in that a subclone, H9, proved to be permissive for replication of HIV in vitro. Propagation of HIV in vitro in H9 cells allowed for the development of immunological reagents to screen blood supplies for the presence of the virus. Further biologic and molecular studies of these lines have led not only to a better understanding of the underlying diseases but also to the development of rational therapeutic approaches. © 1996 Wiley-Liss, Inc.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jcb.240630503
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  • 6
    Electronic Resource
    Electronic Resource
    NCI-navy medical oncology branch cell line data base (1996)
    New York, N.Y. : Wiley-Blackwell
    Journal of Cellular Biochemistry 63 (1996), S. 32-91 
    Details
    ISSN: 0730-2312
    Keywords: cell lines ; clinical correlation ; in vitro data ; polymorphic markers ; lung cancer ; Life Sciences ; Molecular Cell Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Chemistry and Pharmacology , Medicine
    Notes: The cell line data base described in this paper includes both clinical information about the patients from whom the cell line were derived and information about the in vitro analyses performed of the cell lines. The cell line data base has evolved as a part of a systematic effort by a research group at the NCI since 1976 to generate human cell lines as biological tools to study cancer and other diseases. The cell lines were generated from clinical specimens obtained as part of a series of Institutional Review Board-approved clinical protocols. The preponderance of the data is on lung cancer cell lines, though a broad range of other cancers are represented. A bank of over 300 human cell lines including cancer cell and in some instances autologous B-lymphoblastoid cells from the NCI-VA and NCI-Navy Medical Oncology Branch are reposited at the American Type Culture Collection. The cell lines are available for the research community. The entire data base is available on the American Type Culture Collection Web Site (///http://www.atcc.org/). © 1996 Wiley-Liss, Inc.This article is a US Government work and, as such, is in the public domain in the United States of America.
    Additional Material: 5 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jcb.240630505
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  • 7
    Electronic Resource
    Electronic Resource
    Production of monoclonal antibodies against a cell surface concanavalin a binding glycoprotein (1979)
    New York, N.Y. : Wiley-Blackwell
    Journal of Supramolecular Structure 11 (1979), S. 563-577 
    Details
    ISSN: 0091-7419
    Keywords: plasma membrane ; lectin receptors ; affinity chromatography ; membrane proteins ; hybridoma ; monoclonal antibody ; Life Sciences ; Molecular Cell Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Chemistry and Pharmacology , Medicine
    Notes: Concanavalin A-binding (Con A)-binding cell surface glycoproteins were isolated, via Con A-affinity chromatography, from Triton X-100-solubilized Chinese hamster ovary (CHO) cell plasma membranes. The Con A binding glycoproteins isolated in this manner displayed a significantly different profile on sodium dodecyl sulfate-polyacrylamide gels than did the Tritonsoluble surface components, which were not retarded by the Con A-Sepharose column. [125I]-Con A overlays of the pooled column fractions displayed on sodium dodecyl sulfate-polyacrylamide gel electro-phoresis (SDS-PAGE) demonstrated that there were virtually no Con A receptors associated with the unretarded peak released by the Con A-Sepharose column, whereas the material which was bound and specifically eluted from the Con A-Sepharose column with the sugar hapten α-methyl-D-mannopyranoside contained at least 15 prominent bands which bound [125I]-Con A.In order to produce monoclonal antibodies against various cell surface Con A receptors, Balb/c mice were immunized with the pooled Con A receptor fraction. Following immunization spleens were excised from the animals and single spleen cell suspensions were fused with mouse myeloma P3/X63-Ag8 cells. Numerous hybridoma clones were subsequently picked on the basis of their ability to secrete antibody which could bind to both live and glutaraldehyde-fixed CHO cells as well as to the Triton-soluble fraction isolated from the CHO plasma membrane fraction. Antibody from two of these clones was able to precipitate a single [125I]-labeled CHO surface component of ∼265,000 daltons.
    Additional Material: 8 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jss.400110414
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  • 8
    Electronic Resource
    Electronic Resource
    The amino- and carboxyl-terminal sequence of bovine rhodopsin (1977)
    New York, N.Y. : Wiley-Blackwell
    Journal of Supramolecular Structure 6 (1977), S. 559-570 
    Details
    ISSN: 0091-7419
    Keywords: rhodopsin ; rod cell membrane ; limited proteolysis ; phosphorylation site ; amino-terminal ; carboxy-terminal ; carbohydrate attachment ; Life Sciences ; Molecular Cell Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Chemistry and Pharmacology , Medicine
    Notes: The amino terminus of bovine rhodopsin is blocked and has the sequence x-Met-Asn(CHO)-Gly-Thr-Glu-Gly-Pro-Asn-Phe-Tyr-Val-Pro-Phe-Ser-Asn(CHO)-Lys-Thr-Gly-Val-Val-Arg, where CHO represents sites of carbohydrate attachment. The carboxyl-terminal sequence of rhodopsin is Val-Ser-Lys-Thr-Glu-Thr-Ser-Gln-Val-Ala-Pro-Ala. Upon short-term digestion of rod outer segment (ROS) membranes with thermolysin, opsin (∼ 35,000 daltons) is converted to a membrane-bound fragment O′ (∼ 30,500 daltons) and 2 peptides containing 12 amino acids are released from the carboxyl terminus of rhodopsin into the supernatant. Upon long-term digestion of ROS with thermolysin, opsin and O′ are replaced by the membrane-bound fragments F1 (∼25,000 daltons), and F2 (∼9,500 daltons). When 32P-ROS are digested, F2 carries the 32P. Both O′ and F1 contain the amino-terminal glycopeptide.
    Additional Material: 5 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jss.400060409
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  • 9
    Electronic Resource
    Electronic Resource
    Metabolic consequences of enzyme interactions (1996)
    New York, NY [u.a.] : Wiley-Blackwell
    Cell Biochemistry and Function 14 (1996), S. 249-258 
    Details
    ISSN: 0263-6484
    Keywords: Life Sciences ; Molecular Cell Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Medicine
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cbf.699
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