The phase behaviour and surface structure of dipalmitoyl phosphatidyl choline (DPPC) monolayers at the air/water interface, in the absence and the presence of procaine, have been investigated by LangmuirBlodgett (LB) technique and atomic force microscopy. The LB films were transferred on mica, at a controlled surface pressure, characteristic for the expanded liquid to condensed liquid phase tra...

PURPOSE To understand the difference between macular and peripheral regions, tissue samples of human retina, retinal pigment epithelium, and Bruch's membrane/choroid were dissected and analyzed for lipid composition. METHOD To facilitate dissections and enhance the recovery of tissues, eyecups were prefixed for 1 hour in 10% formalin (pH 7). Lipids were extracted from 4-mm trephined punches o...

Effects of ethanol treatment on Leydig cell NADPH-generating enzymes and lipid profiles were studied. Ethanol treatment (3.0 g/kg. b.wt.) twice daily as a 25% (v/v) aqueous solution given to adult Wistar rats reduced the body weight, testis weight and relative weights of the seminal vesicles and ventral prostate. Serum LH and testosterone were also decreased. Similarly, the NADPH-generating enz...

Lecithin was fi rst isolated from egg yolk in the 1850’s. The Greek word for egg yolk, lekithos, is the basis for the name lecithin. Lecithin has a reputation for being “brain food” because of its high concentration of phosphatidyl choline, a nutrient which supports primary brain functions including memory, thought, and muscular control. Phosphatidyl choline is the biological precursor to acety...

Platelet phospholipids undergo significant alterations during aggregation induced by thrombin or other agents. There is an early increase in phosphatidic acid, with a decrease in phosphatidyl inositol. De novo synthesis of most phospholipids from 14C-glycerol is decreased. Thrombin stimulates 32P-phosphate incorporation into di- and triphosphoinositides, suggesting increased phosphorylation of ...

Article history: Received on: 25/05/2016 Revised on: 17/06/2016 Accepted on: 10/07/2016 Available online: 30/08/2016 Phospholipid is very essential in the balanced diet. The vegetarian people in the coastal area are habitant of using edible oil seeds as daily food grains. Salinity of water during cultivation decreases the accumulation of oil content (12-15%) in seeds. Present experiment was foc...

Lipid in the intestinal lumen is mainly dietary in origin, but there is also an endogenous component from bile, bacteria, and the mucosa (through exudation and cell loss). Perfusion experiments in fasting rats demonstrate that exfoliated cells carry with them into the small intestinal lumen an average of 1.12 mg lipid/30 minutes; lipid classes consisting of phosphatidyl choline (lecithin), trig...

Phospholipase B has been found in the mosquito Culex pipiens fatigans, and some of its properties have been studied. The enzyme had a high optimum temperature (45 degrees C) and broad alkaline pH optimum (8-9). It was inactive toward diacylphospholipids, and hydrolyzed lysolecithin at a higher rate than lysophosphatidyl ethanolamine. The enzyme was heat labile, but lysolecithin protected it aga...