What's the difference between circumfusion and diffusion?
Circumfusion
Definition:
(n.) The act of pouring or spreading round; the state of being spread round.
Example Sentences:
(1) Rat hepatoma cells of the H4-II-E cell line able to form conjugated bilirubin glucuronide from bilirubin were grown to tissue density by circumfusion culture of the LAD before symbiotic hemoperfusion experiments lasting up to 24 hours.
(2) They retained many of their features of differentiation in the circumfusion system for more than 120 days of cultivation.
(3) Pancreatic explants from perinatal or 1-week-old rat circumfusion organ cultured with an insulin-free variant of Trowell's Medium T8 survive functionally, as judged from tissue amylase content, for about 3 days.
(4) Sections of those cells grown in circumfusion culture on acrylic copolymer and polysulfone capillaries were prepared.
(5) It can be concluded from these findings that fetal mouseliver cultured in the circumfusion system for 2 weeks maintains its functional and morphological identitites as it differentiates toward the adult liver.
(6) A new circumfusion chamber is described for microscopic or micrometric investigations on living single cells and similar particles.
(7) Uremic serum fractions obtained by Amicon XM-10 hollow fiber and membrane filtration was investigated using cytotoxicity in tissue culture by Rose's circumfusion system and by monolayer culture.
(8) Crystals that were too large to be ingested by individual macrophages were incorporated into a multinucleate cell by a process of circumfusion, and were progressively converted to cholesterol esters within the giant cell.
(9) Long-term (more than 75 days) recirculating circumfusion system cultures of 15-day fetal mouse lungs gave rise to terminal bronchiolar-alveolar (TB-A) units detached from the respiratory tree.
(10) Fetal mouse lungs were cultivated, using the dual-rotary circumfusion system for tissue culture, and their histotypic development was surveyed for 75 days by phase-contrast and electron microscopy.
(11) This presentation will describe a closed loop circumfusion system with an available surface area scaleble to 72 m2.
(12) The authors investigated the in vitro functional differentiation of fetal mouse liver cultured in Rose's circumfusion system with the use of two biochemical markers: The analysis of the inductive response of key enzymes in carbohydrate metabolism to insulin, and the analysis of the liver-specific isozyme of pyruvate kinase [EC 2.7.1.40].
(13) Immunoreactive profiles within the medial septum and hippocampus also circumfuse a small number of intracerebral vessels.
(14) Explants from 7-day-old animals, circumfusion cultured with hydrocortisone-supplemented medium, maintain tissue amylase levels equal to or greater than those of uncultured control pancreas for at least 5 days of culture, and over this period they release amylase into culture medium at a stable rate.
Diffusion
Definition:
(n.) The act of diffusing, or the state of being diffused; a spreading; extension; dissemination; circulation; dispersion.
(n.) The act of passing by osmosis through animal membranes, as in the distribution of poisons, gases, etc., through the body. Unlike absorption, diffusion may go on after death, that is, after the blood ceases to circulate.
Example Sentences:
(1) The Na+ ionophore, gramicidin, had a small but significant inhibitory effect on Na(+)-dependent KG uptake, demonstrating that KG uptake was not the result of an intravesicular positive Na+ diffusion potential.
(2) The femoral component, made of Tivanium with titanium mesh attached to it by a new process called diffusion bonding, retains superalloy fatigue strength characteristics.
(3) The diffusion of Myocamicin in the prostatic tissue of patients undergoing prostatectomy after a single oral dose of 600 mg has been studied.
(4) The preembedding method also disclosed diffuse cytosolic immunoreactivity.
(5) The clinical aspects, the modality of onset and diffusion of the lymphoma, its macroscopic and histopathological features and the different therapeutic approaches are discussed.
(6) The kidney disease was characterized by diffuse beaded deposition of rat gammaglobulin along the glomerular capillaries and proteinuria.
(7) We identified four distinct clinical patterns in the 244 patients with true positive MAI infections: (a) pulmonary nodules ("tuberculomas") indistinguishable from pulmonary neoplasms (78 patients); (b) chronic bronchitis or bronchiectasis with sputum repeatedly positive for MAI or granulomas on biopsy (58 patients, virtually all older white women); (c) cavitary lung disease and scattered pulmonary nodules mimicking M. tuberculosis infection (12 patients); (d) diffuse pulmonary infiltrations in immunocompromised hosts, primarily patients with AIDS (96 patients).
(8) Sera from three of these patients gave a precipitin band in gel diffusion tests identical to that produced by a monospecific rabbit anti-E. granulosus antigen 5 serum, when tested against whole hydatid fluid.
(9) A constellation of histologic lesions was identified in brain (diffuse meningoencephalitis with bilaterally symmetrical thalamic necrosis), liver (pericholangiohepatitis), lung (pneumonitis), and spleen (lymphoid hyperplasia); this tetrad is apparently unique to this model system.
(10) Diffuse Ga-67 uptake in the kidneys was seen due to renal involvement with this disorder.
(11) Thus, whereas CD3-associated molecules isolated from polyclonal CD3+WT31+ populations (expanded in IL 2 under the same culture conditions) appeared as diffuse bands, CD3-associated molecules isolated from CD3+WT31- populations displayed a homogeneous molecular mass.
(12) The diffuse reaction product seen in basement membranes of ganglion and nerve may also be artifact.
(13) Here we determine the position of bound ADP diffused into the recA crystal.
(14) In contrast, boundary layer diffusion is operative in the release from the matrixes prepared by compression of physical mixtures.
(15) Medium molecules have been detected by two methods, gel filtration and screening technique, in patients with diffuse purulent peritonitis and with chronic renal insufficiency.
(16) This may be because the epithelium restricts diffusion of the drug or due to the production of a non-prostanoid factor which inhibits smooth muscle responsiveness.
(17) Ten of 11 diffuse poorly differentiated lymphocytic lymphomas were composed of cells with large amounts of surface immunoglobulin, whereas only 1 of 5 diffuse well differentiated lymphocytic tumors contained such abundant surface immunoglobulin.
(18) Thirty-six lesions imaged as vascular malformations with abnormal vessels or diffusely increased activity.
(19) We therefore conclude that the protective effect displayed by solid grafts might be a local process dependent on the release of diffusible trophic agents.
(20) These results demonstrate, in living human hearts, that diffuse coronary atherosclerosis is often present when coronary angiography reveals only discrete stenoses.