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  • 1
    Electronic Resource
    Electronic Resource
    Effect of bacterial endotoxin on lipoxygenase and cyclo-oxygenase metabolites by rat neutrophils and correlation with cellular functional parameters (1988)
    Springer
    Research in experimental medicine 188 (1988), S. 9-17 
    Details
    ISSN: 1433-8580
    Keywords: Endotoxin ; LPS ; Rat PMN ; LTC4/D4 and TxB2 synthesis ; PMN functions
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The effect ofSalmonella enteritidis endotoxin on in vitro rat neutrophil cyclo-oxygenase and lipoxygenase metabolism, phagocytic activity, superoxide (O 2 - ) generation, and microbicidal activity was investigated. Incubation of polymorphonuclear leukocytes (PMN) with 5, 25, and 50 µg of endotoxin significantly enhanced synthesis of immunoreactive (i) leukotriene (LT)C4/D4 and thromboxane (Tx)B2 (P 〈 0.001) as compared to control cells. Endotoxin 5 µg/ml produced optimal stimulation of the arachidonic acid metabolites. Calcium ionophore, A23187, significantly enhanced iLTC4/D4 and iTxB2 synthesis more than that elicited with endotoxin. Although phagocytic function was not significantly altered by endotoxin, intracellular killing ofC. albicans demonstrated enhanced microbicidal activity at 5 µg/ml of endotoxin. Superoxide generation was significantly enhanced in neutrophils stimulated with phorbol myristate acetate (PMA). Endotoxin (5 µg/ml) further potentiated superoxide generation by these cells when stimulated by PMA. These findings demonstrate that endotoxin directly enhances neutrophil iLTC4/D4 and iTxB2 synthesis. The enhanced arachidonic acid metabolism elicited by endotoxin in these cells parallels increased microbicidal activity and superoxide generation.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01852089
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Non-linkage of the glucagon-like peptide 1 receptor gene with maturity onset diabetes of the young (1994)
    Springer
    Diabetologia 37 (1994), S. 721-724 
    Details
    ISSN: 1432-0428
    Keywords: Glucagon-like peptide-1 receptor ; non-insulin-dependent diabetes mellitus ; maturity onset diabetes of the young ; polymerase chain reaction ; linkage analysis
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Glucagon-like peptide-1 (GLP-1) is a hormone derived from the preproglucagon molecule that is secreted by intestinal L cells and stimulates insulin secretion from betacells. The GLP-1 receptor is a candidate gene for diabetes mellitus, as mutations may induce the impaired insulin response that is a characteristic feature of NIDDM. To study the relationship between the GLP-1 receptor gene and NIDDM, linkage of a microsatellite polymorphism flanking the GLP-1 receptor gene with diabetes was investigated in three Caucasian families with MODY and in the nuclear families of 12 NIDDM probands. A cumulative LOD score −8.50 excludes linkage in these MODY pedigrees. A LOD score of −1.24 in the NIDDM nuclear pedigrees makes linkage improbable. Mutations in or near the GLP-1 receptor gene are unlikely to be the major cause of the inherited predisposition to NIDDM in Caucasian pedigrees, but we cannot exclude a role for this locus in a polygenic model or a major role in some pedigrees.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00417698
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    Paper (German National Licenses)
    Fulltext
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