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1975 (1)
1Author    S. P. Marfey, R. Van Meter, M. E. BartletRequires cookie*
 Title    Interaction between Cholesterol and Calcium Ions in Solution  
 Abstract    Dialysis rates of cholesterol, calcium chloride dihydrate and of their mixture in 90% aqueous dioxane through Visking cellulose membrane were characterized by half-escape times (U/t) of 2.2, 1.0 and 10.5 hours, respectively. Slow dialysis rate observed with the mixture was due to complex formation between four molecules of cholesterol and two molecules of calcium chloride dihydrate, molecular weight 1800 to 2000. The association constant for this complex in 90% aqueous dioxane was estimated to be 3.9 x 1014. Rates of dialysis obtained with a natural protein membrane were in the reverse order to those obtained with cellulose membrane. Half-escape times for cholesterol, calcium chloride dihydrate and for their mixture were 0.6, 6.7 and 1.4 hours, respectively. Deter­ minations of milliosmolality of the three solutions by freezing point depression indicated that in the mixture there were fewer osmotically active same molarity, also suggesting formation of the ments. 
  Reference    (Z. Naturforsch. 30c, 718 [1975]; received June 3 1975) 
  Published    1975 
  Keywords    Cholesterol-Calcium Complex, Calcium Binding, Cholesterol Binding, Arteriosclerosis 
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 TEI-XML for    default:Reihe_C/30/ZNC-1975-30c-0718.pdf 
 Identifier    ZNC-1975-30c-0718 
 Volume    30