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  • 1985-1989  (8)
  • 1945-1949
  • Inorganic Chemistry
  • Biochemistry
Source
Material
Years
Year
Keywords
  • 1
    Electronic Resource
    Electronic Resource
    Histamine receptors in the central nervous system (1989)
    Springer
    Pharmacy world & science 11 (1989), S. 146-150 
    Details
    ISSN: 1573-739X
    Keywords: Agonists ; Antagonists ; Biochemistry ; Central nervous system ; Ligands ; Pharmacology ; Receptors, histamine
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract The role of histamine in brain function is discussed. A brief review is presented on the three types of histamine receptors with regard to their biochemistry and functions, as well as on specific ligands, both agonists and antagonists. It is concluded that several aspects of the pharmacology of histamine in the central nervous system are still a matter of empirism and speculations. The recent publications on the brain-penetrating H2 antagonist zolantidine and the selective H3 agonists and antagonists are expected to contribute to the knowledge of the histaminergic pathways in the brain. Therapeutical areas within the central nervous system are related to behaviour (including wake-sleep), neuroendocrinal processes, the control of muscle activity and cerebral circulation.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01959461
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    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    Pharmacochemical aspects of leprosy (1989)
    Springer
    Pharmacy world & science 11 (1989), S. 3-8 
    Details
    ISSN: 1573-739X
    Keywords: Biochemistry ; Clofazimine ; Dapsone ; Ethionamide ; Isoniazide ; Mechanism of action ; Mycobacterium leprae ; Prothionamide ; Quinolones ; Ribonucleotide reductase inhibitors ; Rifampicin
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract From a pharmacochemical point of view the existing anti-leprotics as well as possible innovations in the chemotherapy of leprosy are discussed. Of the main anti-leprotics, which are used nowadays — dapsone, rifampicin, clofazimine, isoniazide, ethionamide and prothionamide — the mechanism of action, the main problems in their application and possibilities to develop improved variants are reviewed. Based on the chemistry ofMycobacterium leprae, the target systems for new anti-leprotics are identified. These systems include the cell wall, the catabolism of reactive oxygen species, the metabolisms of carbon sources, the amino acid metabolism and the uptake of iron. Two possible new lead structures from other fields, 4-quinolones and mycobacterial ribonucleotide reductase inhibitors are presented.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01972907
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Experimental toxicology of formaldehyde (1987)
    Springer
    Journal of cancer research and clinical oncology 113 (1987), S. 305-309 
    Details
    ISSN: 1432-1335
    Keywords: Formaldehyde ; Mutagenicity ; Metabolism ; Biochemistry ; Carcinogenicity
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Formaldehyde is a reactive chemical which undergoes spontaneous reactions with various cellular constituents. Mutagenicity data may be interpreted on the background of this behavior. Mice are better able to reduce the irritating effect of formaldehyde than rats and to reduce their ventilation rate when formaldehyde acts on the respiratory tract. Subacute exposure of rats to concentrations higher than 2 ppm inhibits mucociliary clearance of the nasal epithelium and leads to progressive histological and ultrastructural lesions at this site. The occurrence of squamous cell carcinomas of the nasal epithelium of rats after 2 years inhalation of 14.3 ppm formaldehyde (CIIT study) is probably the result of chronic and recurrent local toxicity; this is supported by species differences in susceptibility to the tissue damaging and carcinogenic effect of formaldehyde (rat, mouse, hamster). Data on formaldehyde-DNA interaction further support the argument that a direct risk extrapolation from the formaldehyde effects in rats to those expected for man is not possible.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00397713
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Myoadenylate deaminase deficiency: absence of correlation with exercise intolerance in 452 muscle biopsies (1987)
    Springer
    Journal of neurology 234 (1987), S. 385-389 
    Details
    ISSN: 1432-1459
    Keywords: Myoadenylate deaminase ; Histochemistry ; Biochemistry ; Neuromuscular diseases ; Exertional myalgia
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary A histochemical assay was routinely performed of myoadenylate deaminase (MAD) in muscle biopsy specimens. MAD was absent in 13 cases, i.e. 2.9% of the specimens. In 10 cases the deficiency was confirmed biochemically. The diagnoses in the 13 patients were: polyneuropathy (n=5), infantile spinal muscular atrophy (n=3), congenital myopathy with type 2 fibre atrophy, facioscapulohumeral myopathy, polymyositis, myotonic dystrophy and hyperornithinaemia with gyrate atrophy of the retina. In contrast, 35 unrelated patients presenting with exercise-related muscle cramps or pains showed normal histochemical MAD activity. The biopsy specimens in all of these patients were essentially normal and in none of them was the diagnosis of a neuromuscular disease made. The results failed to confirm the association of MAD deficiency with aches, cramps and pains or exertional myalgia.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00314082
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    Paper (German National Licenses)
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  • 5
    Electronic Resource
    Electronic Resource
    Intrinsic actions of the benzodiazepine receptor antagonist Ro 15-1788 (1986)
    Springer
    Psychopharmacology 88 (1986), S. 1-11 
    Details
    ISSN: 1432-2072
    Keywords: Ro 15-1788 ; Benzodiazepine antagonist ; Behaviour ; Electrophysiology ; Biochemistry ; Neurology
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract The imidazodiazepine Ro 15-1788 is a benzodiazepine receptor antagonist that was initially reported to be lacking in intrinsic activity in a variety of test situations in which benzodiazepine-like effects can be identified. However, many recent studies have shown that this compound does indeed have intrinsic activity in a variety of behavioural, neurological, electrophysiological and biochemical preparations in both animals and man. The purpose of the present review is firstly to describe these intrinsic actions, and secondly to consider to what extent these intrinsic actions of Ro 15-1788 have implications for current concepts of the functioning of the benzodiazepine receptor.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00310505
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    Paper (German National Licenses)
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  • 6
    Electronic Resource
    Electronic Resource
    Myoadenylate deaminase deficiency (1986)
    Springer
    Journal of molecular medicine 64 (1986), S. 342-347 
    Details
    ISSN: 1432-1440
    Keywords: Myoadenylate deaminase deficiency ; Histochemistry ; Biochemistry ; Metabolic myopathy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary This report concerns two unrelated males; one had sarcoidosis, sarcoid myopathy and muscle weakness, and the other had exercise-induced weakness and myalgia. Both patients had a lack of ammonia rise in their serum after an ischemic work test, minimal histochemical activity of myoadenylate deaminase in repeated muscle biopsies, and less than 5% of normal biochemical activity of myoadenylate deaminase in their skeletal muscles. These three criteria establish primary myoadenylate deaminase deficiency as a separate primary metabolic muscle disease which merits differential diagnostic consideration when patients complain of muscle weakness and cramps.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01711958
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    Paper (German National Licenses)
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  • 7
    Electronic Resource
    Electronic Resource
    The beta-adrenoceptor-adenylate cyclase complex (1986)
    Springer
    Pharmacy world & science 8 (1986), S. 209-222 
    Details
    ISSN: 1573-739X
    Keywords: Biochemistry ; Pharmacology ; Receptors, adrenergic, beta ; Review
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract Developments in the receptor concept have greatly influenced our current knowledge of the beta-adrenoceptor. The triad of pharmacology, organic chemistry and studies in structure-activity relationships is discussed along historical lines, as it has been and still is an impetus for progress in the biochemistry of ligand-receptor interactions. With respect to the beta-adrenoceptor complex these advances which have led to a model in which three protein structures are functionally interacting within the frame of the cell wall: the beta-adrenoceptor, the regulatory guanine nucleotide binding protein, and the enzyme adenylate cyclase, are reviewed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01957781
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    Paper (German National Licenses)
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  • 8
    Electronic Resource
    Electronic Resource
    Assessment of myocardial metabolism by PET —a sophisticated dream or clinical reality? (1986)
    Springer
    European journal of nuclear medicine 12 (1986), S. S70 
    Details
    ISSN: 1619-7089
    Keywords: Positron emission tomography ; Biochemistry
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00258111
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    Paper (German National Licenses)
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