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B Corman  G Geelen 《Experientia》1992,48(3):268-270
The influence of blood sampling, anesthesia and surgery on plasma vasopressin concentration was assessed in rats. Mean plasma concentration in conscious, chronically catheterized rats was 1.4 +/- 0.1 pg/ml (n = 6). This value remained constant over repeated plasma samplings in the same animals. On the other hand, decapitation increased the plasma vasopressin concentration to 6.0 +/- 2.4 (in pg/ml) (n = 6), inactin anesthesia to 2.9 +/- 0.6 (n = 6), anesthesia and femoral cannulation to 13.3 +/- 5.8 (n = 6) and surgery for renal micropuncture to 81.3 +/- 35.0 (n = 6). It is concluded that the level of circulating plasma vasopressin is highly dependent on the sampling technique and is closely related to the extent of surgery.  相似文献   
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The influence of blood sampling, anesthesia and surgery on plasma vasopressin concentration was assessed in rats. Mean plasma concentration in conscious, chronically catheterized rats was 1.4±0.1 pg/ml (n=6). This value remained constant over repeated plasma samplings in the same animals. On the other hand, decapitation increased the plasma vasopressin concentration to 6.0±2.4 (in pg/ml) (n=6), inactin anesthesia to 2.9±0.6 (n=6), anesthesia and femoral cannulation to 13.3±5.8 (n=6) and surgery for renal micropuncture to 81.3±35.0 (n=6). It is concluded that the level of circulating plasma vasopressin is highly dependent on the sampling technique and is closely related to the extent of surgery.  相似文献   
3.
Impact of acidification on phytoplankton and zooplankton communities   总被引:2,自引:0,他引:2  
Summary Literature concerning the impacts of acidification on the phytoplankton and zooplankton composition has been reviewed. Available data on the species richness and composition of phytoplankton, attached algae and zooplankton of acidifying systems have been summarized. The effects of water acidification on the primary productivity and biomass of zooplankton have been discussed.  相似文献   
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