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  • Alkylated Polycyclic Aromatic Cells: The Effects Of PAH?

    Alkylated polycyclic aromatic compounds (alkyl-PACs) are the major aromatic constituent of total PAH in crude oil and originated from incomplete combustion process. Whereas benzo[a]pyrene (BaP) is a well-known human carcinogen, dibenzothiophene (DBT) and retene (Ret) are not; however, all three compounds are important environmental pollutants. Their toxicity is not yet characterized. In this study, we used BaP (parent PAH), DBT and Ret (alkyl-PACs) to elucidate the mechanism of neurotoxicity…

    Words: 934 - Pages: 4
  • Summary: The Nisin Bacteriocin

    The Nisin Bacteriocin Introduction Nisin is a bacteriosin peptide made up of 34 amino acid residues that contain uncommon amino acids such as lanthionine and didehydroalanine. It is a substance produced by both gram positive and gram negative bacteria to control the growth of other bacteria species to reduce competition for substrate and space. Nisin has received attention from researchers making it the most exploited bacteriosin (Shetty, Pometto and Levin, 2006). The attention from…

    Words: 1220 - Pages: 5
  • Myocardial Infarction

    yellowish plaques of cholesterol, other lipids, and cellular debris in the inner layers of the walls of arteries (Mosby, 2013, pg.153).” Fatty deposits (lipids) are circulating through the blood and become stuck to the artery walls, due to an injury in the endothelial lining of the blood vessel. After some time, the build up of plaque activates the body’s inflammatory process. Macrophages are sent to clean up the debris however if there is a high amount of lipids, the macrophages become…

    Words: 577 - Pages: 3
  • Brown Bears Vs Polar Bears

    periods with little sea ice historically • Mitochondrial DNA (mtDNA) – relationships based on differences in a group of genes • The polar bear genome discovered alterations in genes related to the development of the heart, cardiovascular function and lipid metabolism – this is why they can eat massive amounts of fat without getting sick. • Evidence that there is climate change so brown bears can expand their range northward • Their anatomy and DNA shows that they are genetically closely…

    Words: 285 - Pages: 2
  • Carbohydrates

    staining fat globules. It has the appearance of reddish brown crystals. Lipid is added to water in a test tube the Sudan III is added. The fat globules stain red and a separate red stained oil layer separates on the surface of the water. Emulsion Test is a method to determine the presence of lipids . Drops of lipid are added to test tube and shaken with ethanol. Water is added. A cloudy white suspension indicates the presence of lipid…

    Words: 1011 - Pages: 5
  • Favonoid Differences In Birds Feed Diets

    also not significant with control and antibiotic fed groups. When only Jakr-Na-Rai fed groups was considered, both levels of powder form were more effective to decrease abdominal fat than crude extract form. Effect of Jakr-Na-Rai on drip loss and lipid peroxidation in breast meat was not…

    Words: 766 - Pages: 4
  • Process Of Non-Steroid Hormone Action

    to receptors on the nuclear membrane once it is inside the cell that produces an activated hormone-receptor complex that binds to DNA, activating genes that increase the protein production. The action of small, lipid-soluble steroid hormones does not occur by second messenger. Being lipid soluble causes the hormones to pass directly through the target cell’s plasma membrane. Once inside, the hormones pass through the cytoplasm and enter the nucleus. In the nucleus, they bind with a receptor to…

    Words: 297 - Pages: 2
  • Benefits Of Butterflies

    Monarch butterflies are bright orange with black and white markings on its wings. Males and females can be differentiated based on observing their hind wings; while males have a black spot at the center of each hind wing, females do not. These wings give males a selective advantage; they are able to attract female mates. Similar to migrating birds, the monarch butterflies use the clear benefit of updrafts of warm air, called “thermals” and glide as they migrate, to preserve the energy required…

    Words: 1058 - Pages: 4
  • What Is Omega-3 Fatty Acids?

    OMEGA-3 FATTY ACIDS 1) Structure Figure 1.1 The omega-3 fatty acids are also known as ω-3 fatty acids or n-3 fatty acids which contain a long chain of polyunsaturated fatty acids and the chain ranges from 18 to 22 carbon atoms (Collins J.J., 2010). The fatty acids have two ends; the carboxylic acid end (-COOH) and the methyl end (-CH3). The carboxylic acid end is considered the starting of chain which is “alpha” and methyl chain is considered as the tail of the long chain…

    Words: 1113 - Pages: 5
  • FTIR Reflection

    The principal characteristics bands at 2924 cm-1 (CH2 Asymmetric stretch), 2852 cm-1 (CH2 Symmetric stretch) and 1458 cm-1(CH2 Bend), observed in the spectrum, are concerned mainly with lipids. But the bands at 1430 cm-1, 875 cm-1 and 715 cm-1, concerned with calcium carbonate, are not seen in the spectrum revealing the fact that inner eggshell membrane is free from calcium carbonate. However, characteristic bands at 870 cm-1 and 1450 cm-1…

    Words: 812 - Pages: 4
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