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Pulmonary oxygen diffusing capacity of the South American lungfish Lepidosiren paradoxa: physiological values by the Bohr method.

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  • المؤلفون: Bassi M;Bassi M; Klein W; Fernandes MN; Perry SF; Glass ML
  • المصدر:
    Physiological and biochemical zoology : PBZ [Physiol Biochem Zool] 2005 Jul-Aug; Vol. 78 (4), pp. 560-9. Date of Electronic Publication: 2005 May 18.
  • نوع النشر :
    Comparative Study; Journal Article; Research Support, Non-U.S. Gov't
  • اللغة:
    English
  • معلومة اضافية
    • المصدر:
      Publisher: University of Chicago Press Country of Publication: United States NLM ID: 100883369 Publication Model: Print-Electronic Cited Medium: Print ISSN: 1522-2152 (Print) Linking ISSN: 15222152 NLM ISO Abbreviation: Physiol Biochem Zool Subsets: MEDLINE
    • بيانات النشر:
      Original Publication: Chicago, IL : University of Chicago Press, c1999-2023.
    • الموضوع:
      Respiratory Physiological Phenomena*; Fishes/*physiology ; Lung/*physiology ; Oxygen/*metabolism; Analysis of Variance ; Animals ; Blood Gas Analysis ; Brazil ; Diffusion ; Hemoglobins/metabolism ; Models, Biological ; Temperature
    • نبذة مختصرة :
      Lungfish (Dipnoi) may represent the sister group to all land vertebrates and are therefore important for reconstructing the conquest of land by tetrapods. We determined venous and arterial blood gases, pulmonary O(2) uptake, and the form of the hemoglobin-O(2) dissociation curves in the South American lungfish Lepidosiren paradoxa. Measurements were performed at 25 degrees and 35 degrees C. Based on this information, we calculated its pulmonary O(2) diffusing capacity (D(L)O(2)), using the Bohr integration procedure. D(L)O(2) increased with temperature to reach about 0.04 mL stpd kg(-1) min(-1) mmHg(-1) at 35 degrees C. This value represents about 40% of the morphometric diffusing capacity and is similar to physiological values in some amphibians and reptiles.
    • الرقم المعرف:
      0 (Hemoglobins)
      S88TT14065 (Oxygen)
    • الموضوع:
      Date Created: 20050616 Date Completed: 20051121 Latest Revision: 20131121
    • الموضوع:
      20231215
    • الرقم المعرف:
      10.1086/430230
    • الرقم المعرف:
      15957110