Which of the following statements correctly identifies the process of lipid transport?
- Which of the following statements correctly identifies the process of lipid transport?
- Which class of lipoproteins contains the most protein compared to lipid?
- Which of the following foods does not contain dietary cholesterol?
- In the small intestine fatty acids and other lipid compounds are transported by
- How many different forms of lipids are commonly found in food?
- A lack of the essential fatty acid alpha-linolenic acid can result in what problem
- Which of the following statements is false about cholesterol
Which class of lipoproteins contains the most protein compared to lipid?
Vibeke Telle-Hansen has graciously agreed to guest edit a new thematic series for us. The role of lipids and lipid metabolism in cancer is discussed in this series of articles. Both papers and reviews on solid and non-solid tumors are welcome. Original studies and up-to-date reviews on human lipid and fatty acid control in relation to various risk profiles (metabotypes) of cardiometabolic disease are our goals. More information on the scope can be found here.
Rashika El Ridi and Junfei Jin have guest edited a new thematic collection, which we are excited to share. We welcome papers that define the relationship between sphingomyelin metabolism and cancer immune evasion, including original research, narrative reviews, systematic reviews and meta-analysis, and mini-reviews, enabling the discovery of novel approaches and molecules for cancer prevention and therapy. Learn more about the scale of the project here.
Christa Buechler has guest edited a new thematic collection, which we are excited to share. The role of lipids and lipid metabolism in cancer is discussed in this series of articles. Lipids and lipid metabolism appear to be essential for cancer development, according to new research. Current research is focusing on identifying appropriate serum lipid biomarkers as diagnostic methods. Lipid metabolism may also be used to treat cancer. Both papers and reviews on solid and non-solid tumors are welcome. Learn more about the scale of the project here.
Which of the following foods does not contain dietary cholesterol?
In the small intestine fatty acids and other lipid compounds are transported by
Lipoproteins transport lipids between organs, and changes in lipoprotein levels are linked to metabolic disease. However, there hasn’t been a thorough examination of how lipoproteins affect tissue lipid composition. We use genetics and mass spectrometry to research the assembly, interorgan trafficking, and effect on tissue lipids of Drosophila melanogaster’s major lipoproteins. Lipophorin (Lpp), a member of the apoB family of lipoproteins, is the main lipid carrier in the hemolymph. The fat body produces it as a phospholipid-rich particle, and it is secreted by Microsomal Triglyceride Transfer Protein (MTP). Lipid Transfer Particle (LTP), another fat body-derived apoB-family lipoprotein, helps Lpp accumulate sterols and most diacylglycerol (DAG) in the gut. The gut, like the fat body, is a lipogenic organ that converts both de novo and dietary fatty acids into DAG for export. In order to contribute to the neutral and polar lipid composition of the brain and wing imaginal disk, we define distinct criteria for LTP and Lpp-dependent lipid mobilization. These studies reveal unexpected tissue-specific variations in lipoprotein lipid utilization and identify major interorgan lipid transport routes in Drosophila.
How many different forms of lipids are commonly found in food?
A lack of the essential fatty acid alpha-linolenic acid can result in what problem
Lipids are important in biological processes, and lipid analysis using mass spectrometry (MS) has advanced lipidomic research significantly. Although structure specificity in lipid analysis is important for understanding lipid biological functions, current large-scale lipid analysis methods can only classify lipid groups and fatty acyl chains, leaving the C=C location and sn-position unidentified. We develop a simple yet effective workflow that combines photochemistry and tandem MS to allow large-scale and near-complete lipid structure characterization with the powerful capability of identifying C=C location(s) and sn-position(s) simultaneously in this research. Different subtypes of human breast cancer cells was effectively discriminated by quantifying lipid structure isomers at multiple levels of specificity. Surprisingly, only quantitative results of both lipid C=C location and sn-position isomers will differentiate human lung cancer tissues from adjacent normal tissues.
Which of the following statements is false about cholesterol
Free fatty acid, triglyceride, and cholesteryl ester are the major plasma lipid transport types. Free fatty acid is transported as a physical complex with plasma albumin, mainly from adipocyte triglycerides. The center of plasma lipoproteins transports triglycerides and cholesteryl esters. Dietary fat is secreted in chylomicrons, which are lipoproteins that carry triglycerides to tissues for storage. Chylomicron remnants, which are produced from chylomicrons, carry dietary cholesterol to the liver. Triglycerides are released from the liver in the form of very low density lipoproteins, which are then used and stored in non-hepatic tissues. In the plasma, very low density lipoproteins are converted to low density lipoproteins, which are then enriched in cholesteryl esters. High-density lipoproteins (HDLs) absorb cholesterol from tissues and other lipoproteins in the bloodstream. After being esterified, cholesterol is converted to low density lipoproteins, which are then taken up by the tissues. Phospholipids are structural components of lipoproteins that provide fatty acids for the production of cholesteryl ester in the plasma, but they are not a primary lipid transport form. The plasma lipid transport mechanism is aided by six enzymes, as well as apolipoprotein cofactors and lipid transfer proteins.