What's the difference between decomposition and degradation?

Decomposition


Definition:

  • (n.) The act or process of resolving the constituent parts of a compound body or substance into its elementary parts; separation into constituent part; analysis; the decay or dissolution consequent on the removal or alteration of some of the ingredients of a compound; disintegration; as, the decomposition of wood, rocks, etc.
  • (n.) The state of being reduced into original elements.
  • (n.) Repeated composition; a combination of compounds.

Example Sentences:

  • (1) The ADAM derivative of carnitine was separated from decomposition products of the reagent and related compounds such as amino acid derivatives on a silica gel column eluted with methanol-5% aqueous SDS-phosphoric acid (990:10:1).
  • (2) The decomposition of nafcillin and penicillin G solutions was hastened significantly by magnesium sulphate due to effect on the pH values of the solutions.
  • (3) The UV and IR absorption spectra of compounds present in the eluate were compared with those of model compounds that were assumed to exist in the gel as impurities after the polymerization (monomers and oligomers of hydroxyethyl methacrylate, decomposition products of initiators).
  • (4) The decomposition of nitrosourea is facilitated when a proton or lithium ion is positioned at the oxygen of the nitroso group.
  • (5) Inactivation is due to alkylation by 2-methylene-3(2H)-furanone, a decomposition product of the enzymic product 3'-keto-2'-deoxyuridine triphosphate.
  • (6) During heat treatment, decomposition to isopilocarpine predominated over decomposition to pilocarpic or isopilocarpic acid.
  • (7) The rate of decomposition of cis-4-OHCP was much faster in plasma than in buffer at pH 7.4.
  • (8) Hydroxyapatite thermal decomposition product is a mixture of alpha-tricalcium phosphate and tetracalcium phosphate.
  • (9) A quantitative assay has been developed for putrescine, cadaverine, histamine, and several free amino acids--lysine, arginine, and histidine--as a measure of decomposition.
  • (10) At temperatures of 200-300 degrees C hexamine decomposition is reported to produce mainly ammonia and formaldehyde.
  • (11) The hygienic control of polluted surface waters has to be correlated with measurements of the decomposition rate of heterotrophic microbial populations.
  • (12) Using the malonic acid concentration as a measure of decomposition, this method was used to determine the hydrolytic stability of Meldrum's acid and its skin penetration properties.
  • (13) Their growth development during the treatment agreed very well with the results of decomposition and deodorization.
  • (14) The kinetic 13C isotope effect on the decomposition of carbamoyl phosphate to cyanate and phosphate is 1.058.
  • (15) Enhanced esterification of cholesterol could function as an early primary factor injuring the myelin membrane, the lysocompounds may be involved at a later stage in the pathomechanism of myelin decomposition in the central nervous system.
  • (16) The cholesterol is possibly a decomposition product of the monohydrate.
  • (17) The importance of the decomposition of phosphatidylinosite and of its phosphate esters in binding of certain ligands to receptors is shown.
  • (18) By decomposition of reconstituted receptors with proteases, we demonstrated the homogeneous orientation of the receptor with its extracellular head group pointing to the convex side of the vesicles.
  • (19) The injected decomposition product was found to be solid at the time of sacrifice in all animals.
  • (20) The ion content of heart tissue was measured with flame spectrometer after the decomposition of myocardium by Lumatom tissue solubizer.

Degradation


Definition:

  • (n.) The act of reducing in rank, character, or reputation, or of abasing; a lowering from one's standing or rank in office or society; diminution; as, the degradation of a peer, a knight, a general, or a bishop.
  • (n.) The state of being reduced in rank, character, or reputation; baseness; moral, physical, or intellectual degeneracy; disgrace; abasement; debasement.
  • (n.) Diminution or reduction of strength, efficacy, or value; degeneration; deterioration.
  • (n.) A gradual wearing down or wasting, as of rocks and banks, by the action of water, frost etc.
  • (n.) The state or condition of a species or group which exhibits degraded forms; degeneration.
  • (n.) Arrest of development, or degeneration of any organ, or of the body as a whole.

Example Sentences:

  • (1) This bone could not be degraded by human monocytes in vitro as well as control bone (only 54% of control; P less than 0.003).
  • (2) Lp(a) also complexes to plasmin-fibrinogen digests, and binding increases in proportion to the time of plasmin-induced fibrinogen degradation.
  • (3) The rate of accumulation of degraded LDL products was lower in collagen gel cultures, but the final levels achieved were the same in the two substrata.
  • (4) At the highest dose of chloroquine tested (500 microM), a slightly greater increase in insulin binding and a decrease in insulin degradation were observed in fetal cells as compared with adult cells.
  • (5) Addition of extracellular mevalonate led to a concentration-dependent fall in both processes, although a higher concentration was required to produce the same effect on LDL degradation as on HMG-CoA reductase activity.
  • (6) Radioiodinated a-factor was used to identify the a-factor-degrading activity, which is cell associated, endoproteolytic, and not required for response to pheromone.
  • (7) Densitometric analysis of myofibrillar proteins separated with sodium dodecyl sulfate-polyacrylamide gel electrophoresis indicated that troponin I and troponin T were degraded during 60 minutes of CGI.
  • (8) In addition, we found apyrase activity (which degrades ATP and ADP to AMP and orthophosphate) and an anticoagulant.
  • (9) Degradation of both viral and host DNA with micrococcal nuclease and spleen phosphodiesterase indicated that CdG was incorporated primarily into internal positions in both DNAs.
  • (10) In vitro studies showed that BOF-A2 was rapidly degraded to EM-FU and CNDP in homogenates of the liver and small intestine of mice and rats, and in sera of mice, rats and human, and the conversion of EM-FU to 5-FU occurred only in the microsomal fraction of rat liver in the presence of NADPH.
  • (11) Only PPACK completely inhibited changes in fibrin degradation products, plasminogen and alpha 2-antiplasmin.
  • (12) On the other hand, if we correct for the population of HMM with degraded light chain 2, the difference in the binding constants in the presence and absence of Ca2+ may be as great as 5-fold.
  • (13) When cultures were pulse labeled for 15 min and then incubated under chase conditions for 105 min, the amount of degraded collagen attained a value equal to approximately 20% of the amount synthesized during the labeling period; the data were fit with a simple exponential function that had a 40-min rise time and a 12-min lag time.
  • (14) The mode of ribosome degradation under this condition is discussed in terms of differential appearance of these intermediate particles.
  • (15) Degraded visual acuity had a significant effect on cadence, foot placement, and foot clearance, but visual surround conditions did not.
  • (16) The resistance of GSA 65 to proteolytic degradation, together with previous immunofluorescence data that indicate the antigen is an integral part of the G. lamblia cyst wall, suggests that this molecule may play a role in maintaining the integrity of the cyst in vivo.
  • (17) 5% of the degradation resulted from enzymatic activity in the culture medium, presumably due to secretion of proteolytic enzymes by the cells.
  • (18) At 37 degrees C, 125I-labeled TNF-alpha was rapidly internalized and degraded in L-929, U-937 and LAK cells.
  • (19) Recovery after EEDQ administration showed that both receptor production rate and degradation rate constants of anterior pituitary D2 and striatal D1 receptors were slowed after chronic estradiol treatment, whereas recovery rates for striatal D2 dopamine receptors were unaffected.
  • (20) The specific rates of degradation of L-arginine-AMC, gly-proline-AMC, N-alpha-benzoyl-L-arginine-AMC and N-[p-toluene-sulphonyl]gly-pro-arginine-AMC were significantly greater in that group, indicating that the composition of their gingival crevicular fluid was different from that of the gingivitis group.