(1) To quantify the size of the lesion in mice, the area of the infarct on the brain surface was assessed planimetrically 48 h after MCA occlusion by transcardial perfusion of carbon black.
(2) The vascular endothelium is capable of regulating tissue perfusion by the release of endothelium-derived relaxing factor to modulate vasomotor tone of the resistance vasculature.
(3) When perfusion of the affected lung was less than one-third of the total the tumour was found to be unresectable.
(4) To examine the central nervous system regulation of duodenal bicarbonate secretion, an animal model was developed that allowed cerebroventricular and intravenous injections as well as collection of duodenal perfusates in awake, freely moving rats.
(5) Myocardial ischaemia was induced in perfused rabbit hearts by ligating the left main coronary artery.
(6) Arginine vasopressin further reduced papillary flow in kidneys perfused with high viscosity artificial plasma.
(7) They are best explained by interactions between central sympathetic activity, brainstem control of respiration and vasomotor activity, reflexes arising from around and within the respiratory tract, and the matching of ventilation to perfusion in the lungs.
(8) Within the capillary-perfused mucosa and muscularis (between 50 and 2000 microns from the urothelial surface), concentrations decreased by 50% for each 500-microns distance.
(9) This method provided myocardial perfusion images of high quality which were well correlated with N-13 ammonia images.
(10) Infarct size is always expressed as a percentage of the perfusion area of the occluded artery.
(11) The results indicated that the role of contact inhibition phenomena in arresting cellular proliferation was diminished in perfusion system environments.
(12) These results indicate that FMLP increased a pulmonary microvascular permeability in isolated buffer-perfused rabbit lungs that is PMN dependent and mediated by LT produced possibly by a result of ROS production.
(13) While concentrations of fully glycosylated 35S-Cysteine rhEPO did not exhibit any detectable decrease during perfusion, desialo-35S-Cysteine rhEPO was rapidly cleared from the perfusate.
(14) Measurement of adenosine in coronary effluent and in ventricular tissue by radioimmunoassay verified that no residual elevated adenosine remained following perfusion and washout.
(15) In goldfish intestine (perfused unstripped segments and mucosal strips) the serosal addition of ouabain (10(-4) M) resulted in a vanishment of the transepithelial potential difference and in a continuous increase in transepithelial resistance.
(16) Adding prazosin (30 nM) to the perfusate completely (approximately 90%) reversed this effect (p less than 0.05), while alpha 2-adrenergic receptor blockade with yohimbine (300 nM) had no effect.
(17) Because isosmolar albumin solution is easier to prepare than hyperosmolar cryoprecipitated plasma and gives comparable results, it remains our perfusate of choice for continuous perfusion preservation.
(18) Similarly, the phosphorylation potential, phosphocreatine, adenosine triphosphate, and cyclic adenosine monophosphate were constant in the range of autoregulation but decreased directionally with coronary perfusion pressure below 110 cm H2O for both SHR and WKY rats.
(19) Studies were conducted in isolated, buffer-perfused rat lungs to determine if prostaglandin (PG) E1 attenuated pulmonary edema provoked by hydrogen peroxide (H2O2).
(20) The cardiac output increased by 29% after hemodilution without significant alterations in cerebral perfusion pressure and showed a good inverse correlation with the Hct and the WBV.
Permeate
Definition:
(v. t.) To pass through the pores or interstices of; to penetrate and pass through without causing rupture or displacement; -- applied especially to fluids which pass through substances of loose texture; as, water permeates sand.
(v. t.) To enter and spread through; to pervade.
Example Sentences:
(1) In both instances the permeation rates of proteins can be better correlated to hydrodynamic radii than to molecular weights.
(2) In anaerobiosis, at 25 mM sulphanilic acid, or with addition of p-toluene sulphonic acid only one regression line is obtained for the permeation in both directions.
(3) The calpains were allowed to autolyze to completion, and the autolysis products were separated and were characterized by using gel permeation chromatography, calpastatin affinity chromatography, and sequence analysis.
(4) At 5 micrometer and 2.5 mM sulphanilic acid under aerobic conditions, the regression lines for the permeation from lumen to blood pass almost through the origin, while the regression lines for the permeation from blood to lumen intersect the ordinate at a positive Y-value.
(5) The breakthrough time and permeation rate at steady-state were calculated as described in the ASTM standard test method.
(6) Insulin-like growth factor-binding proteins (IGFBPs) in rat serum, lymph, amniotic fluid and cerebrospinal fluid (CSF), and in rat cell-conditioned media were characterized using a combination of gel-permeation chromatography, Western immunoblots and Western-ligand analysis.
(7) Glycerol permeation and thus its osmotic action may be less in the soleus than in other muscles.
(8) Previous histological evidence of the uptake of these particles and their absorption across the gastrointestinal tract and passage via the mesentery lymph supply and lymph nodes to the liver and spleen was confirmed by analysis of tissues for the presence of polystyrene by gel permeation chromatography.
(9) 10% NNDEMT doubled the amount of PFA in the skin, increased fourfold the amount permeated across the skin, and increased the flux fivefold.
(10) Various methodological weaknesses permeate the relevant literature.
(11) Time courses for in vivo total mucosal uptake exhibited linearity over a wide variety of absorption rates after correction for the permeation by intact metal-chelate complex.
(12) Gel permeation chromatography of the CIT-agarose eluates revealed one protein peak that coincided with PDE activity at an elution position of 135,000 daltons.
(13) Phospholipase A2 has been purified from the venom of Horned viper (Cerastes cerastes) by gel permeation chromatography followed by reverse-phase HPLC.
(14) The buccal absorption characteristics and physicochemical properties of the beta-adrenoceptor blocking agents propranolol and atenolol have been investigated to evaluate their permeation properties across biological lipid membranes.
(15) The permeation enhancer STDHF increases mucosal permeability and reduces the average molecular weight of the insulin species.
(16) I argue that the energy profile in the permeation pathway of most biological channels should vary relatively smoothly with only a few localized energy barriers or wells.
(17) Channels containing a variety of viable cells permeated the rice bodies.
(18) Estrogen receptor from human breast cancer tissue and from normal human uterus was isolated and characterized by a combination of physical separation methods including ammonium sulfate precipitation, gel permeation chromatography, isoelectric focusing and gel electrophoresis.
(19) However, we did not examine the mechanisms by which the apparent high permeation of sodium chloride occurs.
(20) For the skins without stratum corneum, the permeation rates and permeation amounts of l-NG and dl-NG were higher than those for the intact skin (P less than 0.01), but no significant difference was seen between l-NG and dl-NG.