& Zhu, H
1997;65:1645S1654S
Both exhibit different roles in the body

442 kcal / per 13 oz can Water, Pork Liver, Corn Starch, Lamb, Chicken Fat, Dextrose, Flaxseed, Dried Beet Pulp, Chicken Liver Flavor, Fish Oil, Powdered Cellulose, Calcium Carbonate, Potassium Citrate, L-Lysine, Potassium Chloride, Betaine, DL-Methionine, Whole Grain Oats, vitamins (Vitamin E Supplement, Thiamine Mononitrate, Ascorbic Acid (source of Vitamin C), L-Ascorbyl-2-Polyphosphate (source of Vitamin C), Niacin Supplement, Vitamin A Supplement, Calcium Pantothenate, Vitamin B12 Supplement, Pyridoxine Hydrochloride, Riboflavin Supplement, Menadione Sodium Bisulfite Complex (source of Vitamin K), Biotin, Folic Acid, Vitamin D3 Supplement), Fructooligosaccharides (FOS), Choline Chloride, Magnesium Oxide, minerals (Ferrous Sulfate, Zinc Oxide, Manganese Sulfate, Copper Sulfate, Calcium Iodate), L-Threonine, Taurine, Iodized Salt, Sodium Tripolyphosphate, L-Carnitine, L-Tryptophan, Beta-Carotene.Water, Pork Liver, Corn Starch, Lamb, Chicken Fat, Dextrose, Flaxseed, Dried Beet Pulp, Chicken Liver Flavor, Fish Oil, Powdered Cellulose, Calcium Carbonate, Potassium Citrate, L-Lysine, Potassium Chloride, Betaine, DL-Methionine, Whole Grain Oats, vitamins (Vitamin E Supplement, Thiamine Mononitrate, Ascorbic Acid (source of Vitamin C), L-Ascorbyl-2-Polyphosphate (source of Vitamin C), Niacin Supplement, Vitamin A Supplement, Calcium Pantothenate, Vitamin B12 Supplement, Pyridoxine Hydrochloride, Riboflavin Supplement, Menadione Sodium Bisulfite Complex (source of Vitamin K), Biotin, Folic Acid, Vitamin D3 Supplement), Fructooligosaccharides (FOS), Choline Chloride, Magnesium Oxide, minerals (Ferrous Sulfate, Zinc Oxide, Manganese Sulfate, Copper Sulfate, Calcium Iodate), L-Threonine, Taurine, Iodized Salt, Sodium Tripolyphosphate, L-Carnitine, L-Tryptophan, Beta-Carotene

Other choline metabolites known to be cell-signaling molecules include platelet-activating factor (PAF) and sphingophosphocholine
The supernatant was then incubated with 4 mL freshly prepared GFP-nanobody conjugated resin for 1 h