Additionnal info:
*) Conception erronée au sujet des propriétés physiques et fonctionnelles des acides gras saturés (Misconception about the physical and functional properties of saturated fatty acids)
https://mirzoune-ciboulette.forumactif.org/t2073-conception-erronee-au-sujet-des-proprietes-physiques-et-fonctionnelles-des-acides-gras-satures
Tuons un mythe : les graisses polyinsaturées ne sont pas utiles pour assurer la perméabilité/osmolarité des membranes. La théorie relative à la « membrane » est inadéquate. Dire que les oméga-3 rendent les membranes cellulaires plus fluides et donc « mieux fonctionnelles » est au mieux un conte de fée biologique.
Traduction:
Let's dispel a myth: Polyunsaturated fats are not useful for ensuring membrane permeability/osmolarity. The "membrane" theory is inadequate. Claiming that omega-3s make cell membranes more fluid and therefore "better functioning" is, at best, a biological fairy tale.
*) How the Oils In Your Diet Are Aging Your Skin.
Dr. Peat goes on to explain what this rancidity (oxidation process) does:
"The free radicals produced in this process react with parts of cells, such as molecules of DNA and protein, and may become attached to those molecules, causing abnormalities of structure and function."
https://raypeat.com/articles/articles/unsaturated-oils.shtml
*) Les besoins réels en AG polyinsaturés surestimés ?
https://mirzoune-ciboulette.forumactif.org/t1581-les-besoins-reels-en-ag-polyinsatures-surestimes
=> Are the real needs for polyunsaturated fatty acids overestimated?
*) Toxicité des AG polyinsaturés en excès
https://mirzoune-ciboulette.forumactif.org/t1685-trop-domega-3-deprime-le-systeme#21200
Trop d'acides gras insaturés dépriment le système (Too many unsaturated fatty acids depress the system).
*) Aging remodels membrane phospholipids
Phospholipids contribute to the fluidity and flexibility of membranes, allowing for membrane dynamics and cell movements.
Figure 4: Phospholipidic membrane
Phospholipidic membrane
[image: 1746006799855-figure-4.phospholipidic-membrane.jpg]
Senescence remodels the hydrocarbon tail of membrane phospholipids
Phospholipid bilayers are critical components of cell membranes. The lipid bilayer acts as a barrier to the passage of molecules and ions into and out of the cell. However, an important function of the cell membrane is to allow selective passage of certain substances into and out of cells.
Phospholipids tail length is modified when aging (oxidized) and this change affects permeability by changing the membrane thickness. The aging brain undergoes significant remodeling of lipid composition, as well.