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  • 1985-1989  (3)
  • 1989  (3)
  • Macrosiphum euphorbiae  (1)
  • gallbladder motility  (1)
  • gastric-acid  (1)
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Material
Years
  • 1985-1989  (3)
Year
  • 1989  (3)
Keywords
  • 1
    Electronic Resource
    Electronic Resource
    Effect of short-term omeprazole administration of serum pepsinogens in relation to fasting serum gastrin and gastric acid secretion (1989)
    Springer
    European journal of clinical pharmacology 37 (1989), S. 345-349 
    Details
    ISSN: 1432-1041
    Keywords: omeprazole ; pepsinogen A ; pepsinogen C ; fasting serum gastrin ; pentagastrin ; gastric-acid ; healthy volunteers
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Medicine
    Notes: Summary A study has been done in 10 male healthy volunteers of the effect of oral omeprazole 20 mg daily for 3 days on the serum concentrations of Pepsinogens A and C in relation to changes in fasting serum gastrin and basal and pentagastrin stimulated gastric acid output. The concentrations of Pepsinogens A and C showed concomitant and variable but significant increases, and the Pepsinogen A, C ratio did not change during the 3-day course of omeprazole. The increments were also significantly correlated with the increase in fasting serum gastrin and with the reduction in pentagastrin stimulated acid output. The correlations were mainly due to the marked inhibition of gastric acid secretion and the corresponding increases in serum gastrin and Pepsinogens A and C in two subjects, as in the other 8 subjects the changes were only modest. There appears to be a relationship, therefore, between the degree of inhibition of acid by omeprazole and the parallel increases in both serum pepsinogens and fasting gastrin.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00558498
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    Plasma cholecystokinin and gallbladder responses to intraduodenal fat in gallstone patients (1989)
    Springer
    Digestive diseases and sciences 34 (1989), S. 353-359 
    Details
    ISSN: 1573-2568
    Keywords: plasma cholecystokinin ; cerulein ; gallbladder motility ; cholescintigraphy ; gallstones
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Impaired gallbladder emptying is one of the various factors suggested to be involved in the pathogenesis of gallstones. The present study was undertaken to determine whether gallbladder emptying, endogenous cholecystokinin (CCK) secretion, or their interrelation is altered in patients with gallstones. After intraduodenal administration of 60 ml corn oil, plasma CCK concentration was measured by a sensitive and specific radioimmunoassay and gallbladder emptying by cholescintigraphy. Patients with gallstones (N=20) produced significantly less endogenous CCK (105±17 pmol/liter 60 min; P 〈0.001) than control subjects (191±11 pmol/liter 60 min, N=20); gallbladder emptying in the patients was significantly decreased at 5, 10, 40, 45, and 50 min but the reduction in gallbladder emptying did not reach statistical significance at 60 min (patients 44±8%, control subjects 60±4%). In addition, the gallbladder responsiveness to intravenous infusion of the synthetic CCK analog cerulein was investigated. Based on the results of gallbladder emptying in response to endogenous and exogenous CCK, four subgroups of gallstone patients were identified: (1) a group (N=7) with normal gallbladder sensitivity to CCK, (2) a group (N=6) with significantly increased gallbladder sensitivity to CCK, (3) a group (N=6) with impaired gallbladder emptying after corn oil due to a significantly reduced endogenous CCK secretion but with normal gallbladder sensitivity to CCK, and (4) one patient whose gallbladder was unresponsive to CCK and was found to have chronic cholecystitis at surgery.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01536255
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    Interactions between plant and aphid genotypes in resistance of lettuce to Myzus persicae and Macrosiphum euphorbiae (1989)
    Springer
    Euphytica 43 (1989), S. 215-222 
    Details
    ISSN: 1573-5060
    Keywords: Lactuca sativa ; lettuce ; Macrosiphum euphorbiae ; Myzus persicae ; leaf aphids ; resistance breeding ; interaction
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary Six lettuce lines, representing two types of resistance to the green peach aphid, Myzus persicae, and a control line with high susceptibility to M. persicae were tested for resistance to six different clones of Myzus persicae and two clones of the potato aphid, Macrosiphum euphorbiae. The clones of M. persicae showed very different levels of aggressiveness on lettuce: two had a high level of reproduction, two had an intermediate level and two were poorly adapted to lettuce as a host. Differences between lettuce lines in aphid reproduction increased with increasing aggressiveness of the aphid clone, which means that aggressive clones are most effective for selection purposes. No evidence was found for clone-specific plant genotype reactions, meaning that lines resistant to one clone will also be resistant to other clones of M. persicae, allthough not neccessarily at the same level. The lettuce lines selected for partial resistance to the aggressive clone WMp1 were completely or almost completely resistant to less aggresive clones. No differences in level of reproduction were found between the two clones of M. euphorbiae and no relation was observed between resistance to M. persicae and M. euphorbiae, indicating the species-specific character of resistance to leaf aphids in lettuce.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00023056
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
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