Osmolarity of Human Serum and of Chemical Solutions of Biological Importance

Clinical Chemistry (Impact Factor: 7.91). 05/1961; 7:154-64.
Source: PubMed
8 Reads
  • Source
    • "As less than 3 % of the total radioactivity passed through the filter it was concluded that most of the vitamin was solubilised within the micellar particles. The final osmolality (Hendry, 1961) of the perfusate varied between 290 and 310 mOsm/l. At the completion of experiments the pH of the perfusate varied from 7-21-7-34. "
    [Show abstract] [Hide abstract]
    ABSTRACT: Intestinal absorption of vitamin D-3 in physiological concentrations was studied in the live unanesthetised rat. In both the jejunum and the ileum a linear relationship was found between the absorption rate of the vitamin and its intraluminal concentration. Increasing the sodium taurocholate concentation in the perfusate above 5mM did not change ileal absorption rate but did decrease jejunal absorption rate. The vitamin's rate of absorption was raised by increases in either the hydrogen ion concentration in vivo is mediated by passive diffusion. The rate of absorption of ttion or the perfusate's flow rate. Addition of 2.5 mM fatty acids of varying chain length and degrees of saturation resulted in a decrease in the rate of vitamin D-3 absorption. These experiments indicate that vitamin D-3 absorption in vivo is mediated by passive diffusion. The rate of absorption of the vitamin is influenced by the composition of the perfusate and the thickness of the unstirred layer.
    Gut 05/1978; 19(4):267-72. DOI:10.1136/gut.19.4.267 · 14.66 Impact Factor
  • In Vitro Cellular & Developmental Biology - Plant 09/1970; 6(2):109-127. DOI:10.1007/BF02616113 · 0.98 Impact Factor
  • Source
    Immunology 06/1963; 6:291-300. · 3.80 Impact Factor
Show more


8 Reads
Available from