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  • 1985-1989  (4)
  • 1900-1904
  • 1850-1859
  • Proximal gastric vagotomy  (2)
  • Stress gradient  (2)
  • 1
    Electronic Resource
    Electronic Resource
    Fine root production of astringent phenolics (1989)
    Springer
    Oecologia 79 (1989), S. 563-565 
    Details
    ISSN: 1432-1939
    Keywords: Phenolics ; Fine roots ; Stress gradient ; Vegetation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary Chemical quality of fine roots (〈1 mm diameter) was determined over a gradient of species composition in the Mixed Mesophytic Forest Region. Ash-free nitrogen, calcium, and phosphorus concentrations of roots declined by 49, 41, and 72%, respectively, over a gradient of increasing soil acidity (pH 5.3 to 4.7). Lignin concentration was unrelated to either the vegetation gradient or any of the soil changes it encompassed; however, astringent phenolics increased by 275% over the same gradient. Trends in the chemical constituency of fine roots suggest that the production of phenolics in below-ground plant parts is increased on nutrient-poor sites. This response is best related to changes in species composition, especially increasing importancy of Quercus spp.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00378676
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Intraspecific variation in production of astringent phenolics over a vegetation-resource availability gradient (1987)
    Springer
    Oecologia 72 (1987), S. 211-215 
    Details
    ISSN: 1432-1939
    Keywords: Phenolics ; Stress gradient ; Vegetation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary The chemical constituency of flowering dogwood (Cornus florida L.) and red maple (Acer rubrum L.) foliage was analyzed over a species compositional gradient to test the hypothesis that over subtle gradients of moisture and nutrient availability production of phenolic compounds will be increased on sites of greatest stress. Calcium and nitrogen concentrations declined along the gradient in both species, while phosphorus showed a significant decline only in red maple. Lignin concentrations in both species were unrelated to the vegetation gradient, but astringent phenolics increased by 156% and 159% in dogwood and red maple, respectively. The correlation between production of polyphenolds and site quality supports previous observations that under conditions of environmental stress production of many secondary compounds is increased, and suggests that this relationship is significant over subtle environmental gradients.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00379270
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    312.10-Jahres-Langzeitergebnisse der Säuresekretion nach proximal-selektiver Vagotomie (1985)
    Springer
    Langenbeck's archives of surgery 366 (1985), S. 712-712 
    Details
    ISSN: 1435-2451
    Keywords: Gastric acid secretion ; Proximal gastric vagotomy ; Long-term stability ; Säuresekretion ; Proximal-selektive Vagotomie ; Langzeitstabilität
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Bei 11 Patienten mit Ulcus duodeni (UD) and 5 Patienten mit einem Ulcus des Pyloruskanals (UPK) wurden vor, 1, 5 and 10 Jahre nach proximal-selektiver Vagotomie (PSV) Sekretionsbestimmungen (basale Sekretion, BAO, and Pentagastrin-stimulierte Sekretion, PAO) durchgeführt. Dabei zeigte sich sowohl bei den UD wie den UPK eine signifikante Verminderung der Sekretion nach 1 Jahr um 66% bzw. 58% fur den BAO and von 48% bzw. 62% fur den PAO. Die Säurere-duktion betrug auch nach 10 Jahren noch fiber 50% (BAO and PAO) and es zeigten sich keine signifikanten Unterschiede zwischen UD and UPK noch zwischen Rezidivfreien and Rezidiven. Die PSV führt damit zu einer erheblichen and fiber mindestens 10 Jahre stabilen Verminderung des Säureaus-stoßes des Magens.
    Notes: Summary Eleven patients with duodenal ulcers (DU) and 5 with pyloric channel ulcers (PCU) had serial acid secretion studies before as well as 1, 5 and 10 years after proximal gastric vagotomy (PGV). One year after PGV, the basal acid output (BAO) and pentagastrin-stimulated output (PAO) were reduced by 66% and 48%, respectively, in DU and 58% and 62%, respectively, in PCU. Acid output reduction was still higher than 50% for both BAO and PAO after 10 years. There appeared to be no significant differences between DU and PCU or between recurrence-free patients and those with recurrent ulcers. Thus PGV achieves a substantial reduction in acid output, which remains stable for at least 10 years.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01836910
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    319. Die proximal selektive Vagotomie beim gastroduodenalen Ulcus -10-Jahres-Ergebnisse der europäischen multizentrischen Studie (1987)
    Springer
    Langenbeck's archives of surgery 372 (1987), S. 935-935 
    Details
    ISSN: 1435-2451
    Keywords: Proximal gastric vagotomy ; Gastroduodenal ulcer ; Ten-year results ; Proximal selektive Vagotomie ; Gastroduodenales Ulcus ; 10-Jahres-Ergebnisse
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Wir berichten über die 10-Jahres-Ergebnisse einer prospektiven multizentrischen Studie an 8 europäischen Kliniken (Basel, Bern, Düsseldorf, Erlangen, Freiburg, Krefeld, München Klinikum Grosshadern, Strassburg) zur Bewertung der proximal selektiven Vagotomie beim gastroduodenalen Ulcus. Die Nachuntersuchungsrate war 81%. Ergebnis:n symptomatisch total Visick Ulcustyp % Rezidivrate % 1 + II Ulcus duodeni524 13,6 20,4 88% Ulcus ventriculi 71 13,5 19,8 73% Ulcus pyloricum/praepyloricum 94 18,7 31,684% Kombinierte Ulcera 28 27,9 31,7 82%
    Notes: Summary We report the 10-year results of a prospective multicenter trial in eight European centers (Basel, Bern, Düsseldorf, Erlangen, Freiburg, Krefeld, München Klinikum Grosshadern, Strassburg) evaluating proximal gastric vagotomy for gastroduodenal ulcers. The follow-up rate was 81%. Results:n Symptomatic Total Visick Ulcer type recurrencerecurrence I + II (%) (%) Duodenal ulcer 524 13.6 20.488% Gastric ulcer 71 13.5 19.8 73% Pyloric/prepyloric ulcer 94 18.7 31.6 84% Combined ulcer 28 27.9 31.782%
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01298104
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    Paper (German National Licenses)
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