fatty acids

(redirected from Non-Esterified Fatty Acids)
Also found in: Dictionary, Acronyms.

fatty acids

A large group of monobasic acids found in animals and plants. They are hydrocarbon chains and are saturated or unsaturated aliphatic compounds with an even number of carbon atoms. Chain lengths range up to nearly 30 carbon atoms. Fatty acids with more than about 8 carbon atoms in the chain occur most commonly as constituents of glycerides, phospholipids and sterols. The most abundant fatty acids are palmitic, stearic and oleic acids. Glucose and fatty acids are the two main fuel substances of the body. FATS are glyceride esters of fatty acids.
Collins Dictionary of Medicine © Robert M. Youngson 2004, 2005

fatty acids

a range of molecules with the general formula Cn H2n+ 1COOH that occur naturally in many organisms, often combined with glycerol to form FATS. Fatty acids are of two main types: unsaturated, with at least one carbon-to-carbon double bond, and saturated, with no such bonds. The greater the proportion of unsaturated fatty acids in a fat the lower its melting point, with many unsaturated fats being liquid oils at room temperature. There is evidence that excess consumption of saturated fats can lead to hardening of the arteries (see ARTERIOSCLEROSIS), but the facts are disputed, particularly by butter manufacturers.
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005
References in periodicals archive ?
It includes hyperketonemia, ketonuria, ketolactia, hypoglycemia, and high blood concentration of non-esterified fatty acid (NEFA).
Main outcome measures: Plasma non-esterified fatty acid and phospholipid LC n-3 PUFA composition.
NEFA, non-esterified fatty acids; MS, mean square; d.f, degrees of freedom.
Plasma Non-esterified Fatty Acids (NEFA): The concentration of plasma NEFA was highest at week 8 and lowest at week 12 (P(less than)0.05).
Pan blames what he calls the obesogenic environment of the mother, which includes increased triglycerides, high levels of the hormone leptin, and elevated amounts of non-esterified fatty acids (NEFAs) circulating in the obese expectant mother's body.
The desirable, high UFA content of milk in groups M and H resulted from enhanced fat reserve mobilization and increased supply of non-esterified fatty acids (NEFA) to the udder.
Serum glucose, triglyceride (TG), non-esterified fatty acids (NEFA), low-density lipoprotein cholesterol (LDL-C) and high-density lipoprotein cholesterol (HDL-C) were estimated using commercial kits from Wako Pure Chemical Industries (Osaka, Japan).
Effect of underfeeding postpartum charolais beef cows on composition plasma non-esterified fatty acids. Anim.