Library

feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Cellular and molecular life sciences 9 (1953), S. 405-412 
    ISSN: 1420-9071
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary Synaptotropic substances, i.e. substances acting on autonomic ganglia, may also have an action on the suprarenal medulla which is an efferent organ of the sympathetic nervous system and can be regarded as a modified sympathetic ganglion. Moreover, synaptotropic substances exert effects on certain afferent structures bearing a close anatomical and functional relationship to the autonomic nervous system, e.g. the chemoreceptor system in the carotid body and the cardiac receptors responsible for theBezold-Jarisch effect. As a rule, synaptotropic excitatory substances stimulate the suprarenal medulla (secretion of hormone) and the other afferent structures referred to, while synaptotropic inhibitory substances exert a depressive action. There are, however, exceptions to this rule. It seems especially remarkable that synaptotropic substances are also able to exert effects on afferent structures in which there are no synapses. The presence of a morphologically distinct synapse is not, therefore, a necessary condition for their action.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 2
    Electronic Resource
    Electronic Resource
    Springer
    European journal of clinical pharmacology 25 (1983), S. 535-538 
    ISSN: 1432-1041
    Keywords: emotional stress ; forearm blood flow ; variance of forearm blood flow ; thioridazine ; toliprolol ; plethysmography
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Medicine
    Notes: Summary Forearm blood flow was measured four times per minute by venous occlusion plethysmography during rest and during a brief emotionally stressful mental task. During emotional stress not only was the mean forearm blood flow increased, but the single blood flow values fluctuated more than at rest. The greater fluctuation, expressed statistically as the variance, was an indicator of emotional stress, at least as sensitive as the mean increase in the blood flow. Both a tranquillizer (thioridazine) and a β-blocker (toliprolol) reduced the greater variance during the emotionally stressful situation in doses insufficient to diminish the mean increase in forearm blood flow.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 3
    Electronic Resource
    Electronic Resource
    Springer
    European journal of clinical pharmacology 21 (1982), S. 467-471 
    ISSN: 1432-1041
    Keywords: alinidine ; emotional stress ; tachycardia ; healthy volunteers ; heart rate ; blood pressure ; forearm blood flow ; St 567
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Medicine
    Notes: Summary Experiments were performed in a randomized double blind cross-over study in 6 healthy volunteers to answer the question if alinidine, a new analogue of clonidine with a bradycardic effect directly on the sinus node, would have an effect on an emotionally — induced tachycardia. Alinidine 40 mg orally significantly (1%) reduced the tachycardia and the concomitant rise in diastolic blood pressure during the stress of performing a mental task. Forearm blood flow and the efficiency (total score in the mental task) remained unchanged by alinidine.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 4
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 182 (1958), S. 1168-1169 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Blood-sugar measurements were made using the modified method of Shaffer and Hartmann5 in the blood of the ear artery of rabbits. It was found that 5 hydroxytryptophan given intravenously in small doses (5 20 mgm./kgm.) definitely raised the blood-sugar level. Fig. 1 shows the blood-sugar rise after ...
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 5
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 178 (1956), S. 260-261 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] N-CBO-S-benzyl-L-cysteinyl-L-tyrosine was coupled in tetrahydrofurane by the mixed anhydride procedure with L-valine methylester to give the tripeptide ester, melting point 132 , [ ±])D19 36 (c. 2.9 in methanol). This was transformed, through the hydrazide, melting point 241 , into the ...
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 6
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 188 (1960), S. 998-998 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] ABOUT twelve years after its discovery by Rocha e Silva, Beraldo and Rosenfeld1 brady-kinin was isolated, synthesized and its structure elucidated. Rocha e Silva et al. first succeeded in preparing a strongly enriched preparation of bradykinin2. The next steps were due to Elliott, Lewis and Horton ...
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 7
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 194 (1962), S. 1184-1184 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] In order to elucidate the increase in flow of blood in muscle due to intra-arterially administered adrenaline in man, we used the dichloro analogue of isoproterenol (DCI, Lilly Compound 20522) which in experiments on animals was found to abolish almost exclusively the action of adrenaline on the (3 ...
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 8
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 163 (1949), S. 720-721 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THE analgesic actions of certain new synthetic compounds, including pethidine and amidone, have been extensively compared with that of morphine1. It is assumed that this analgesic action is mainly due to a central effect, although the possible local anæsthetic properties of these ...
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 9
    Electronic Resource
    Electronic Resource
    Springer
    Journal of neural transmission 16 (1957), S. 91-98 
    ISSN: 1435-1463
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Summary The effect of agents causing intestinal contraction can be specifically blocked by suitable antagonists. The blockade is specific only within a certain dosage range. If the dosage is increased a non-specific spasmolytic action results. Some drugs exert only a non-specific spasmolytic action. With the aid of substances acting upon the intestine and influencing the receptors in ganglion cells, nerves and muscles to different degrees, it is possible to depict the topography of the receptors in the intestine.
    Abstract: Résumé La contraction intestinale produite par certaines substances peut être bloquée d'une manière spécifique par des antagonistes appropriés. Cet antagonisme n'est spécifique que pour des doses comprises entre certaines limites; avec des doses plus élevées, on obtient un effet spasmolytique non spécifique. Nombre de médicaments ne possèdent, d'ailleurs, qu'une activité spasmolytique dépourvue de spécificité. En utilisant des substances actives dont I'effet sur I'intestin s'exerce d'une manière différenciée sur les cellules ganglionnaires, les nerfs et les muscles, il est possible d'établir une topographie des récepteurs intestinaux.
    Notes: Zusammenfassung Der Effekt von darmkontrahierenden Wirkstoffen läßt sich durch geeignete Antagonisten spezifisch blockieren. Diese Spezifität ist nur in einem bestimmeten Dosierungsbereich gegeben; bei Dosissteigerung erfolgt der Übergang in unspezifische spasmolytische Wirksamkeit. Manche Pharmaka wirken überhaupt nur unspezifisch spasmolytisch. Mit Hilfe von darmwirksamen Stoffen, die differenziert die Rezeptoren in Ganglienzellen, Nerven und Muskeln beeinflussen, wird es möglich, eine Rezeptoren-Topographie des Darmes aufzustellen.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 10
    Electronic Resource
    Electronic Resource
    Springer
    Cellular and molecular life sciences 12 (1956), S. 154-155 
    ISSN: 1420-9071
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary d-Lysergic acid diethylamide (LSD 25) produces in rabbits a syndrome consisting of hyperthermia, hyperglycemia, mydriasis, pilomotor activation, cardiac acceleration etc. Analysis of these effects leads to the assumption of an increased sympathetic discharge induced by the central nervous action of LSD 25. Comparison of LSD 25 and reserpine shows opposite characteristics of these two drugs not only in the field of vegetative pharmacology but also concerning influence on psychic functions in man. The possibility should, therefore, be considered that an increased excitatory state of sympathetic centres by LSD 25 is a main factor in the pathogenesis of the well-known psychic disturbances produced by this amide in man.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...