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n.1.(Chem.) The hypothetical radical C3H5O, regarded as the essential residue of propionic acid and certain related compounds.
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He said: "Diacetyl and also acetyl propionyl have been linked to popcorn lung, so-called because it is a flavouring agent that gives popcorn a buttery taste and has been linked to a lung disease Bronchiolitis Obliterans, which is not dissimilar to COPD in those exposed to it through work.
One novel form of carnitine known as propionyl -L-carnitine helps regulate levels of adenosine triphosphate (ATP)--the primary source of energy for all cellular processes--and can improve physical performance and reduce general fatigue.
Non-labeled use includes macrolide antibiotics prostaglandins a-TocopherolGingko biloba garlic propionyl levocarnitine chelation therapy (EDTA) hyperbaric oxygen and cinnarazine27-29.
Summary: We have synthesized pyrazole-carboxamides compounds; N [(1E)-(1,5-dimethyl-3-oxo- 2-phenyl-2,3-dihydro-1H-pyrazol-4-yl) methylene]-2-(6-methoxy)-2-naphthyl)-propionyl hydrazide (4), N-[(1E)-(1,3-diphenyl-1H-pyrazol-4-yl)methylene]-2-(6-methoxy-2-naphthyl) propionyl hydrazide (5), 2-(6-Methoxy-naphthalen-2-yl)-1-(3-phenyl-pyrazol-1-yl)propan-1-one (6), 2-(6- Methoxy-naphthalen-2-yl) -1-(5-phenyl-2,3-dihydro-pyrazol-1-yl)propan-1-one (7) and 2-(6- methoxynaphthalen-2-yl)-N-{4-[3-(4-methoxyphenyl)-acryloyl)]-phenyl}-propionamide (8) then characterized by IR, 1 H-NMR and 13 C-NMR techniques.
5 [micro]mol/L), Propionyl carnitine, Butyryl carnitine, Isovaleryl carnitine, Glutaryl carnitine were normal.
The most important and well-known pathway for fatty acid oxidation is [beta]-oxidation, in which fatty acids are converted into acetyl Co-A or propionyl Co-A (derived from odd-numbered fatty acid chains), and finally those Co-As are oxidized into carbon dioxide and [H.
Propionyl L-carnitine improvement of hypertrophied heart function is accompanied by an increase in carbohydrate oxidation.
There was an increase in the isovaleryl and 3-OH butyryl carnitine levels, whereas there was a decrease in the levels of acetyl, propionyl, and palmitoylcarnitine.
Proteins identified in these studies included albumin, ES1 carboxylesterase, propionyl and methylcrotonyl coenzyme A carboxylase-[alpha], and pyruvate carboxylase.
Propionyl CoA is converted to L-methylmalonyl CoA and the mutase (with vitamin B12 as coenzyme) converts this to succinyl CoA, which is part of the tricarboxylic acid (Krebs) cycle of metabolism.
To control the exotherm, the process as described suggests slow addition of propionyl chloride.
Our results suggest that additional metabolic modification to boost the levels of propionyl substrate in the plastids of alfalfa plants is required for efficient synthesis of PHB/V.