What's the difference between accretion and proliferation?

Accretion


Definition:

  • (n.) The act of increasing by natural growth; esp. the increase of organic bodies by the internal accession of parts; organic growth.
  • (n.) The act of increasing, or the matter added, by an accession of parts externally; an extraneous addition; as, an accretion of earth.
  • (n.) Concretion; coherence of separate particles; as, the accretion of particles so as to form a solid mass.
  • (n.) A growing together of parts naturally separate, as of the fingers toes.
  • (n.) The adhering of property to something else, by which the owner of one thing becomes possessed of a right to another; generally, gain of land by the washing up of sand or sail from the sea or a river, or by a gradual recession of the water from the usual watermark.
  • (n.) Gain to an heir or legatee, failure of a coheir to the same succession, or a co-legatee of the same thing, to take his share.

Example Sentences:

  • (1) Each process has been linked to the regulation of cholesterol accretion in the arterial cell.
  • (2) From the regression coefficients it was calculated that, for the accretion of 1 g body protein, the dietary amino acid requirements were (mg) threonine 47, valine 53, methionine + cystine 36, methionine 19, isoleucine 43, leucine 78, phenylalanine + tyrosine 84, phenylalanine 41, lysine 68 and tryptophan 12.
  • (3) This must involve the additional accretion or synthesis of dipicolinic acid.
  • (4) Protein accretion in the regenerating liver preceded mitosis, but was accompanied by increases in RNA content and fractional rates of protein synthesis (ks).
  • (5) Aggregated proteoglycans inhibit mineral accretion in vitro.
  • (6) The magnitude of the changes in growth performance, tissue accretion rates and body composition elicited by pGH were independent of strain.
  • (7) Consequently, size of the exchangeable Ca pool, accretion rate and balance across bone were higher in these goats.
  • (8) On the other hand, there was no increase in percent protein accretion (both 15% of weight gain).
  • (9) The absolute rate of MT accretion was less in macrophages incubated with 25 microM- as compared with 50 microM-Zn2+, owing to decreased and increased rates of MT synthesis and degradation respectively.
  • (10) Previously, we observed that HSV infection causes a 40-fold increase in cholesteryl ester (CE) accretion in arterial smooth muscle cells due, in part, to a substantial decrease in CE hydrolysis.
  • (11) During the suckling period there is high hepatic protein accretion and the portal vein glutamine concentration is twice that in the adult, whereas hepatic vein glutamine concentration is similar between adult and suckling rats.
  • (12) Carcass protein accretion rate increased (P less than .001) up to approximately 150 micrograms of pST.kg BW-1.d-1, whereas lipid deposition decreased (P less than .001) with each incremental dose of pST.
  • (13) On d -22, 67 and 155, blood was sampled every 20 min for 8 h. Relative to LPN, HPN increased (P less than .01) ADG by 28%, carcass weight by 26% and accretion of carcass fat by 109% and carcass protein by 20%.
  • (14) However, much of the localization to the tumors was due to nonspecific factors, as evidenced by the considerable tumor accretion of the control antibody.
  • (15) Mithramycin at the low dosage had little effect on the rate of bone accretion.
  • (16) The analysis of chromatin, therefore, indicates that unligated repair sites are sites of protein accretion which block exonuclease III action.
  • (17) Retention of Ca and P in both groups was significantly below estimates of intrauterine accretion.
  • (18) Fractional accretion rates of total body 3-methylhistidine containing proteins (actin and myosin) were elevated 40% to 120% in rats fed a high-carbohydrate diet containing 10 or 100 ppm cimaterol for 1 week.
  • (19) The investigators' hypothesis that there would be more accretions on the side not involved in osseous surgery and pocket eradication was not supported in this study.
  • (20) Our previous studies with a 90Y-labelled antibody against carcinoembryonic antigen (CEA) conjugated to the cyclic anhydride-DTPA (CA-DTPA) indicated that the accretion of 90Y in the bone may limit the application of 90Y-labelled antibodies for therapy.

Proliferation


Definition:

  • (n.) The continuous development of cells in tissue formation; cell formation.
  • (n.) The production of numerous zooids by budding, especially when buds arise from other buds in succession.

Example Sentences:

  • (1) The most actively proliferating region of the excurrent duct system is zone 3 of the epididymis, whereas the least active region is the ductuli efferentes.
  • (2) We also show that proliferation of primary amnion cells is not dependent on a high c-fos expression, suggesting that the function of c-fos is more likely to be associated with other cellular functions in the differentiated amnion cell.
  • (3) However, when cross-linked to anti-CD4 or anti-CD8 antibodies a markedly enhanced proliferation of the corresponding subpopulation is observed.
  • (4) Quantitative determinations indicate that the amount of PBG-D mRNA is modulated both by the erythroid nature of the tissue and by cell proliferation, probably at the transcriptional level.
  • (5) In addition to their involvement in thrombosis, activated platelets release growth factors, most notably a platelet-derived growth factor (PDGF) which may be the principal mediator of smooth muscle cell migration from the media into the intima and of smooth muscle cell proliferation in the intima as well as of vasoconstriction.
  • (6) 10D1 mAb induced a substantial proliferation of peripheral blood T cells when cross-linked with goat anti-mouse Ig antibody.
  • (7) Proliferation assays using F3 showed that 15 (14 CD4+ and 1 CD8+) of the 18 isolated clones were specific for T. gondii.
  • (8) After vascular injury, smooth muscle cells proliferate, reaching a maximum rate at day 2.
  • (9) Recent studies have shown that an aberration in platelet-derived growth factor gene expression is unlikely to be a factor in proliferation of smooth-muscle cells.
  • (10) During capillary growth when endothelial cells (EC) undergo extensive proliferation and migration and pericytes are scarce, hyaluronic acid (HA) levels are elevated.
  • (11) The macrophage-derived product, interleukin 1 (IL 1) is thought to play an important regulatory role in the proliferation of T lymphocytes; however, its mechanism of action is unknown.
  • (12) T cell costimulation by molecules on the antigen presenting cell (APC) is required for optimal T cell proliferation.
  • (13) Our prospective study has defined a number of important variables in patients with clinical evidence of mast cell proliferation that can predict both the presence of SMCD and the likelihood of fatal disease.
  • (14) However, a highly significant upward shift of the proliferating cell compartment was observed in the cancer group, resulting in a specific modification of the [3H]TDR labeling pattern in 6 of 17 specimens.
  • (15) Anti-5'-NT antibodies had no effect on PHA-induced proliferation.
  • (16) The mechanism by which gp55 causes increased erythroblastosis and ultimately leukaemia is unknown, but a reasonable suggestion is that gp55 can mimic the action of erythropoietin by binding to its receptor (Epo-R), thereby triggering prolonged proliferation of erythroid cells.
  • (17) Extensive proliferation has been shown to accompany the de novo generation of LAK cytotoxicity.
  • (18) Proliferating cells were abundant and scattered throughout the stratified epithelium before the appearance of villi.
  • (19) Proliferation of quiescent hematopoietic stem cells, purified by cell sorting and evaluated by spleen colony assay (CFU-S), was investigated by measuring the total cell number and CFU-S content and the DNA histogram at 20 and 48 hours of liquid culture.
  • (20) Whereas the growth and division of normal cells is carefully regulated to meet the needs of the body, tumor cells proliferate autonomously and continually, eventually interfering with and destroying the functions of normal tissue.