(n.) The act or process of filtering; the mechanical separation of a liquid from the undissolved particles floating in it.
Example Sentences:
(1) Gel filtration of the 40,000 rpm supernatant fraction of a homogenate of rat cerebral cortex on a Sepharose 6B column yielded two fractions: fraction II with the "Ca(2+) plus Mg(2+)-dependent" phosphodiesterase activity and fraction III containing its modulator.
(2) In this review, we demonstrate that serum creatinine does not provide an adequate estimate of glomerular filtration rate (GFR), and contrary to recent teachings, that the slope of the reciprocal of serum creatinine vs time does not permit an accurate assessment of the rate of progression of renal disease.
(3) The enzyme was solubilized by Triton X-100 and purified approximately 480-fold by gel filtration and affinity chromatography on alanine methyl ketone-AH-Sepharose 4B.
(4) The authors conclude that H. pylori alone causes little or no effect on an intact gastric mucosa in the rat, that either intact organisms or bacteria-free filtrates cause similar prolongation and delayed healing of pre-existing ulcers with active chronic inflammation, and that the presence of predisposing factors leading to disruption of gastric mucosal integrity may be required for the H. pylori enhancement of inflammation and tissue damage in the stomach.
(5) The molecular weight of antigen RFB2 was estimated to be approximately 85,000 daltons based on the results of gel filtration on Sepharose CL-6B.
(6) Further purification of ZAB by filtration through Sephadex G-100 gave a preparation (ZAB2) which contained the common antigen as shown by the cross-reactivity of anti-ZAB2 rat serum with seven stains of N. gonorrhoeae.
(7) The flow properties of white cells were tested after myocardial infarction, by measuring the filtration rates of cell suspensions through 8 microns pore filters.
(8) Slight cross-reactivity was apparent when crude preparations of cellular or culture filtrate antigens, used in this laboratory to detect antibodies to Candida albicans, Coccidioides immitis and Cryptococcus neoformans, were probed with hyperimmune rabbit antisera to A. fumigatus.
(9) The culture filtrate and OM preparation were capable of inhibiting the chemotaxis of PMNL in response to the chemotactic factors of E. coli but LPS of B. fragilis was not able to do so.
(10) The enzyme from rat lung was purified about 30-fold by pH treatment (NH4)2SO4 fractionation, and gel filtration.
(11) Ten filtrating blebs remained after a 5 months' follow-up period.
(12) Medium molecules have been detected by two methods, gel filtration and screening technique, in patients with diffuse purulent peritonitis and with chronic renal insufficiency.
(13) Even though the administration of demethylchlortetracycline did not produce significant decreases in the glomerular filtration rate or renal blood flow in our patient, it is advisable to control the renal function in individuals treated with this drug since it may on occasion determine renal insufficiency.
(14) The fucose-labeled glycoproteins were converted to glycopeptides by pronase digestion and separated into two major classes by gel filtration on Sephadex-G-50.
(15) Receptors solubilized with Triton X-100 eluted in gel filtration as a major peak of Mr = 330,000 and retained high affinity binding (KD = 0.25 nM).
(16) It is inferred that in this experimental model (1) high-density lipoproteins are probably excreted in the glomerular filtrate, (2) alterations in the composition of the excreted lipoproteins may occur during their passage through the nephron.
(17) Fractionation of uremic serum by gel filtration on Sephadex G-200 shows that the inhibitory activity elutes with an apparent molecular weight of greater than 200,000 daltons.
(18) Ratfish serum proteins have been fractionated by ammonium sulfate, followed by gel filtration on Sepharose 6B.
(19) In other dogfish, glomerular filtration rate, urine flow, and Na and K excretory rates were measured for 3 days following implantation of desoxycorticosterone (DOCA), adrenocorticotropin (ACTH), or spironolactone; a control group was given no drug.
(20) An isolation technique involving filtration and discontinuous density gradient centrifugation was utilized for obtaining Giardia lamblia cysts from human feces.
Straining
Definition:
(p. pr. & vb. n.) of Strain
() a. & n. from Strain.
Example Sentences:
(1) These variants may serve as useful gene markers in alcohol research involving animal model studies with inbred strains in mice.
(2) None of the strains was found to be positive for cytotoxic enterotoxin in the GM1-ELISA.
(3) They are going to all destinations.” Supplies are running thin and aftershocks have strained nerves in the city.
(4) In contrast, resting cells of strain CHA750 produced five times less IAA in a buffer (pH 6.0) containing 1 mM-L-tryptophan than did resting cells of the wild-type, illustrating the major contribution of TSO to IAA synthesis under these conditions.
(5) We were able to detect genetic recombination between vaccine strains of PRV following in vitro or in vivo coinoculation of 2 strains of PRV.
(6) All of the strains examined were motile and hemolytic and produced lipase and liquid gelatin.
(7) The taxonomic relationship of strains H4-14 and 25a with previously described Xanthobacter strains was studied by numerical classification.
(8) Whereas strain Ga-1 was practically avirulent for mice, strain KL-1 produced death by 21 days in 50% of the mice inoculated.
(9) These results suggest that the pelvic floor is affected by progressive denervation but descent during straining tends to decrease with advancing age.
(10) We also show that the gene of the main capsid protein is expressed from its own promoter in an Escherichia coli strain.
(11) Sequence variation in the gp116 component of cytomegalovirus envelope glycoprotein B was examined in 11 clinical strains and compared with variation in gp55.
(12) By hybridization studies, three plasmids in two forms (open circular and supercoiled) were detected in the strain A24.
(13) In addition, the fact that microheterogeneity may occur without limit in the mannans of the strains suggests that antibodies with unlimited diverse specificities are produced directed against these antigenic varieties as well.
(14) Strains isolated from the environment and staff were not implicated.
(15) The compressive strength of bone is proportional to the square of the apparent density and to the strain rate raised to the 0.06 power.
(16) Escherichia enterotoxigenic strains, Yersinia enterocolitica and Salmonella typhimurium virulent strains, Campylobacter jejuni clinical isolates possess more pronounced capacity for adhesion to enteric cells of Peyer's plaques than to other types of epithelial cells, which may be of importance in the pathogenesis of these infections.
(17) These sequences are also conserved in the same arrangement in minor sequence classes of minicircles from this strain.
(18) The isoelectric points (pI) of E1 and E2 for all VEE strains studied were approx.
(19) One rat strain (TAS) is susceptible to the anticoagulant and lethal effects of warfarin and the other two strains are homozygous for warfarin resistance genes from either wild Welsh (HW) or Scottish (HS) rats.
(20) In these bitches, a strain of E coli identical to the strain in the infected uterus was isolated.