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  • 1
    Electronic Resource
    Electronic Resource
    Putrescine and Spermidine in Peas: Effeets on Nitrogen Source and Potassium Supply (1979)
    Oxford, UK : Blackwell Publishing Ltd
    Physiologia plantarum 45 (1979), S. 0 
    Details
    ISSN: 1399-3054
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: Free and total putrescine and, to a lesser extent, spemidine accumulate in both roots and shoots of peas in response to potas stum deficiency and ammomnium supply. Free putrescine responds more sensitively than total putreseine to variatioin of nutrients. Accumulation of putrescine is more pronounced in the roots than in the shoots.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1399-3054.1979.tb02621.x
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  • 2
    Electronic Resource
    Electronic Resource
    Über die Phasenkoordination von mütterlichem und foetalem Herzrhythmus während der Schwangerschaft (1979)
    Springer
    Journal of molecular medicine 57 (1979), S. 87-91 
    Details
    ISSN: 1432-1440
    Keywords: Pregnancy ; Heart Rhythm ; Phase Coordination ; Schwangerschaft ; Herzrhythmus ; Phasenkoordination
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung An Schwangeren im 8. und 9. Schwangerschaftsmonat wurden, größtenteils bei systematischen Längsschnittuntersuchungen während der Nachtruhe, synchrone Registrierungen des mütterlichen und foetalen Elektrokardiogramms vorgenommen. Durch Untersuchung der Häufigkeitsverteilung der mütterlichen R-Zacken-Beginne innerhalb der foetalen Herzperiode sowie der Häufigkeitsverteilung der foetalen R-Zacken innerhalb der mütterlichen Herzperiode konnte der Nachweis erbracht werden, daß bei etwa ganzzahligem Frequenzverhältnis von 2:1 eine Phasenkoordination beider Herzrhythmen stattfindet, die zu einer Bevorzugung bestimmter Phasenbeziehungen führt. Die gefundene Phasenbeziehung läßt die Vermutung zu, daß sich der foetale Herzrhythmus dem Ablauf der mütterlichen Pulswellen als dem führenden Zeitgeberrhythmus innerhalb eines schmalen Ziehbereiches einordnet.
    Notes: Summary In pregnant women during 8th and 9th month of pregnancy simultaneous registrations of the maternal and the fetal electrocardiograms were carried out, generally by systematic long-term studies during night rest. It could be proofed by examinations of the frequency distribution of the maternal R-peaks within the fetal cardiac cycle as well as of the frequency distribution of the fetal R-peaks within the maternal cardiac cycle that around a whole number frequency relationship of both of the heart rhythms a phase coordination between maternal and fetal heart actions occurs, leading to a preference of a defined phase relationship. According to the detected phase relationship it can be presumed, that the fetal rhythm is triggered by the guiding maternal pulse wave rhythm within a small range.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01491340
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Experimentelle Untersuchungen zum Einfluß der Pyloroplastik und der Pylorusstenose auf die motorische und sekretorische Magenfunktion bei der selektiv-proximalen Vagotomie (1979)
    Springer
    Langenbeck's archives of surgery 348 (1979), S. 243-260 
    Details
    ISSN: 1435-2451
    Keywords: Selective proximal vagotomy ; Pyloric stenosis ; Pyloroplastic ; Gastric emptying ; Acid secretion ; Serum gastrin
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Mit einer modifizierten intestinalen Perfusion- und Aspirationsmethode wurden simultan die motorischen and sekretorischen Magenfunktionen nach Gabe einer flüssigen Testnahrung beim wachen Miniaturschwein nach experimenteller Pylorusstenose, alleiniger SPV, SPV mit zusätzlicher Pylorusstenose und SPV mit zusätzlicher Pyloroplastik untersucht. Nach alleiniger SPV fand sich eine initial betonte Abnahme des intragastralen Volumens und eine normale Entleerung in das Duodenum. Bei einer zusätzlichen Pylorusstenose trat keine signifikante Änderung ein. Eine Pyloroplastik führte zu einer signifikanten Anhebung des intragastralen Volumens mit verzögerter Entleerung. Die durch eine SPV reduzierte postprandiale Säuresekretionsleistung wurde weder durch eine Pyloroplastik, noch durch eine Pylorusstenose signifikant verändert. Das basale Serumgastrin war sowohl nach SPV als auch nach SPV in Kombination mit einer Pylorusstenose oder Pyloroplastik erhöht. Nach Nahrungsstimulation kam es zu einem verzögerten Anstieg des Serumgastrins nach SPV, der sich lediglich in der ersten Stunde von den Werten nach SPV mit Pylorusstenose oder Pyloroplastik unterschied. Die vorliegenden Ergebnisse lassen erkennen, daß bei einer SPV durch eine zusätzliche Pyloroplastik keine weitere Verbesserung der sekretorischen und motorischen Funktionen erzielt wird. Weiterhin lassen die erhobenen Untersuchungen den Schluß zu, daß nach SPV mit einer zusätzlichen experimentellen Pylorusstenose keine Entleerungsverzögerung des Magens auftritt und die postoperative Säuresekretion und das Serumgastrin nicht negativ beeinflußt werden.
    Notes: Summary In conscious fullgrown minipigs simple SPV alone, SPV and pyloric stenosis and SPV and pyloroplasty were performed. After a liquid test meal the motoric and secretory function of the stomach were examined simultaneously by a modified method of intestinal perfusion and aspiration. After simple SPV initially a marked decrease of gastric volume and normal emptying into the duodenum were found. With additional pyloric stenosis no significant change was found. The pyloroplasty lead to an increase of gastric volume and delayed emptying. The acid secretion after feeding reduced by SPV was not changed significantly neither by pyloroplasty nor by pyloric stenosis. The baseline values of serum gastrin were elevated after SPV as well as after SPV in combination with pyloric stenosis or pyloroplasty. After food stimulation there was a delayed increase of gastrin after SPV which differed from that after SPV with pyloric stenosis or pyloroplasty only during the first hour. These results show that after SPV no further improvement of the motoric and secretory function can be achieved by an additional pyloroplasty. Furthermore these findings permit the conclusion that even after SPV with additional artificial pyloric stenosis no delayed gastric emptying occurs and that there is no negative effect postoperatively on the acid secretion and gastrin production.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01317611
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    233. Die selektiv-proximale Vagotomie zur Behandlung blutender gastroduodenaler Ulcera (1979)
    Springer
    Langenbeck's archives of surgery 349 (1979), S. 581-581 
    Details
    ISSN: 1435-2451
    Keywords: Peptic ulcer hemorrhage ; Selective proximal vagotomy ; Pyloroplasty ; Blutendes Gastro-Duodenal-Ulcus ; Selektiv-proximale Vagotomie ; Pyloroplastik
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Von 704 selektiv-proximalen Vagotomien wurden 100 (14,2 %) wegen blutendem chronischem Ulcus durchgeführt. Das mittlere Alter war 50 Jahre (Männer) und 56 Jahre (Frauen). In 60 % war die Blutung massiv (Schockindex über I). Die Klinikletalität war 10% (spezifische 5%). In 7% mußte wegen Blutungsrezidiv nachoperiert werden. Bei den bis 9 Jahre postoperativ Nachuntersuchten (n = 50) war die Gesamtbeurteilung: Visick I u. II 85 %,1118 %, IV 7 %. Dumping und Diarrhoe traten nur nach Pyloroplastik auf.
    Notes: Summary 100 (14.2 %) of 704 selective proximal vagotomies were carried out for bleeding chronic ulcer. The patients' age averaged 50 years (men) and 56 years (women). In 60 % there was massive bleeding (shock index above 1). The hospital mortality was 10 % (specific 5 %). In 7 % relaparotomy had to be performed due to recurrent bleeding. In those patients followed up to 9 years (n = 50), the overall grading was: Visick I + II 85 %, III 8 % and IV 7 %. Dumping and diarrhea always occurred after pyloroplasty.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01729693
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  • 5
    Electronic Resource
    Electronic Resource
    Pinocytosis and locomotion in amoebae (1979)
    Springer
    Protoplasma 100 (1979), S. 33-43 
    Details
    ISSN: 1615-6102
    Keywords: Amoeba proteus ; Ca++-binding sites ; Cytochemical demonstration ; Induced pinocytosis ; Plasma membrane
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary Different methods were used to demonstrate the existence of Ca++-binding sites (Ca++-bs) at the plasma membrane ofAmoeba proteus. In pinocytoting animals the number (indicated by the average distanced in nm) and size (average longitudinal axiss in nm) of Ca++-bs at the cytoplasmic surface of the cell membrane were significantly increased (d=162±15;n=41 ands=93±5;n=47) in comparison to controls (d=208 ±21;n=37 ands=59±8;n=45). The ratio of P: Ca obtained by X-ray microanalysis was in the range of 1.5. The differences observed in the two experimental groups of amoebae are explained by conformational changes in the molecular structure and an increased Ca++-permeability of the plasma membrane during induced pinocytosis. Microplasmodia of the acellular slime moldPhysarum polycephalum investigated for comparison were found to have no Ca++-bs at the interior cell surface.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01276299
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  • 6
    Electronic Resource
    Electronic Resource
    Pinocytosis and locomotion of amoebae: XII. Dynamics and motive force generation during induced pinocytosis in A. proteus (1979)
    Springer
    Cell & tissue research 197 (1979), S. 263-279 
    Details
    ISSN: 1432-0878
    Keywords: Induced pinocytosis ; Dynamics ; Motive force generation ; Light and electron microscopy ; Amoeba proteus
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary The mechanism of induced pinocytosis was investigated in Amoeba proteus by light and electron microscopy. The application of nine different inducing substances revealed that pinocytotic channel formation, elongation, vesiculation, shortening and disappearance are the result of the successive or simultaneous action of both traction and pressure forces, which are produced by the contractile activity of a plasma membrane-associated layer of filaments ranging from a few hundred nm to several μ in thickness. The initial phase of channel formation is caused by traction forces according to the membrane flow concept, whereas channel elongation and vesiculation mainly result from pressure forces in conjunction with the extrusion of small hyaline pseudopodia. Shortening and disappearance of the pinocytotic channels are brought about by local contractions of the cortical filament layer in the basal region of the hyaline pseudopodia. Experiments using latex beads as marker particles together with inducing substances show that a rapid membrane turnover during pinocytosis can be excluded, and that the plasma membrane slides as an entire structure over the underlying cytoplasm.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00233919
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