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The Na + K + ATPase activity in cultured human fibroblasts with an elevated phospholipid triene: tetraene ratio
Author(s) -
Karmiol Soverin,
Bettger William J.
Publication year - 1990
Publication title -
lipids
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.601
H-Index - 120
eISSN - 1558-9307
pISSN - 0024-4201
DOI - 10.1007/bf02562207
Subject(s) - phospholipid , clinical chemistry , cell culture , fetal bovine serum , biochemistry , microbiology and biotechnology , bovine serum albumin , chemistry , lipidology , cell growth , population , atpase , cell , phosphatidylinositol , biology , membrane , kinase , enzyme , medicine , genetics , environmental health
Human skin fibroblasts were cultured at low density for 11 days in MCDB 110, 0.4% fetal bovine serum, a mitogen mixture, and were supplemented with 18∶2n−6 or 18∶1n−9 as a fatty acid‐albumin complex. The cells cultured with the 18∶2n−6 supplement had a 20∶3n−9/20∶4n−6 ratio of 0.29±0.07; the 18∶1n−9 supplemented cells had a ratio of 1.51±0.27. There was less than 4% difference in total growth of the cell population under the two culture conditions. The cells supplemented with 18∶2n−9 had similar levels of protein/cell, K + /mg cell protein and functional Na + K + ATPase activity.