Disease relevance of Counter

• We monitored the volume of C6 glioma cells in suspension using a Coulter Counter and exposed the cells to micromolar or nanomolar levels of collagenase or clostripain [1].
• The estimated prevalence of leukopenia (WBC counts less than or equal to 4,500 cells/mm3) was 10.6% using the Technicon and 9.7% using the Coulter Counter [2].
• Both E. coli and V. cholerae densities declined by 2 orders of magnitude, as measured by direct particle counts with a Coulter Counter (Coulter Electronics, Inc., Hialeah, Fla.). However, the density of neither bacteria changed dramatically when the same samples were analyzed by epifluorescent direct counts [3].
• RESULTS: Counter to the hypothesis, parental control over children's intake was inversely associated with overweight in girls, as measured by body mass index, r = -0.12, p < 0.05, and triceps skinfolds, r = -0.11, p < 0.05 [4].
• 1. The effects of hypoosmotic stress on cell volume and amino acid efflux were evaluated in the human neuroblastoma cell line CHP-100 with the Coulter Counter Multisizer and radiolabeled amino acid efflux, respectively [5].

Psychiatry related information on Counter

• Subversion of host defense mechanisms by murine tumors. II. Counter-influence of concomitant antitumor immunity [6].
• A generalized Weber model provided a better approximation to the growth in the difference limen as a function of signal than a generalized Counter model [7].
• Accuracy of Calorie Counter method to assess daily energy expenditure and physical activities in athletes and nonathletes [8].

High impact information on Counter

• A cone and plate viscometer and Coulter Counter were used to study platelet modulation of polymorphonuclear leukocyte (PMNL) aggregation caused by controlled shear stress [9].
• Size-frequency distribution curves of erythrocytes were generated with the Coulter Counter in 73 normal subjects and patients [10].
• To investigate volume-regulating processes in the hepatocyte, a rapid and precise method of measuring cell volume in isolated hepatocytes was devised which uses a Coulter Counter equipped with a Channelyzer [11].
• Cell proliferation was assessed by [(3)H]thymidine incorporation, fluorescent-activated cell-sorting analysis, and cell number using a Coulter Counter [12].
• The blastogenic and mitogenic response of murine splenic lymphocytes to concanavalin A and the response of the resulting blasts to a lymphokine co-stimulator preparation was examined with an electronic particle counting and sizing apparatus (Coulter Counter and Channelizer) [13].

Biological context of Counter

• We have developed a semi-quantitative assay for bovine conglutinin, utilizing a Coulter Counter to register the decrease in total particles due to red cell aggregation [14].
• Fusion kinetics curves were established with a Coulter Counter assay for the mutants and wild-type virus in single infections of human embryonic lung (HEL) cells, for the mutants and wild-type virus in mixed infections (dominance test), and for pairs of mutants in mixed infections (complementation test) [15].
• Platelet aggregation in whole blood determined using the Ultra-Flo 100 Platelet Counter [16].
• We measured whole-blood mean platelet volume (MPV) and platelet count, determined by the Coulter Counter model S-Plus, in 683 normal subjects [17].
• The Coulter Counter model S-Plus measures the erythrocyte, leukocyte, and platelet counts, and the mean cell volume of erythrocytes and platelets [18].

Anatomical context of Counter

• An electronic particle counter (Coulter Counter ZBI) and pulse-height analyser (Channelyzer C1000) have been used to measure numbers and sizes of mitochondria isolated from the ciliated protozoon Tetrahymena pyriformis [19].
• Mitochondria of Tetrahymena pyriformis: enumeration and sizing of isolated organelles using a Coulter Counter and pulse-height analyser [19].
• The study included 409 men and women who underwent a carotid artery duplex study and white blood cell analysis (Sysmex Cell Counter) during a 2-day health check at our hospital in 1994 [20].
• Platelet aggregation was studied at 37 degrees C in citrated whole human blood, using the Ultra Flo 100 Whole Blood Platelet Counter [21].
• A comparison of total white blood cell counts on the Technicon H6000 and Coulter Counter Model ZBI in an occupational health program [2].

Associations of Counter with other chemical compounds

• Cell counts were performed by Coulter Counter S-Plus VI (Coulter, Hialeah, FL) in the following anticoagulants: EDTA, Na-citrate, and citrate-theophylline-adenosine-dipyridamole [22].
• Measurements of thymidine uptake and cell size with the Coulter ZBI Counter and C-1000 channelyzer were found to be comparable for mitogen-stimulated lymphocytes [23].
• The effects of these proteins were determined, separately, at the same final concentration (32 nM) on calcium oxalate crystallization in a seeded, inorganic reaction system, using Coulter Counter and [14C]oxalate analysis [24].
• Suspensions of phorbol myristate acetate-activated polymorphonuclear leukocytes were analyzed with a Coulter Counter STKS hematological analyzer [25].
• Semen thawed on a hot plate at 38 degrees C was counted with a Coulter Counter before and after filtering through Sephadex columns with 0.1 M sodium citrate as flushing medium [26].

Gene context of Counter

• The effect of treatment of the cells with EGF (1 nm, 4 days) was determined visually (expressed as percent non round cells) and by measuring the cell volume by Coulter Counter analysis [27].
• Mean platelet volume was stable for up to 24 h only in CPT-collected specimens, if it was measured on a Coulter Counter S-Plus STKR [28].
• The purity of each protein was confirmed by SDS/PAGE, and their effects on CaOx crystallization in undiluted ultrafiltered human urine were determined at a final concentration 80.65 nmol/l using Coulter Counter and [(14)C]oxalate analysis [29].
• Blood drawn by peripheral venipuncture was analyzed by Coulter Counter for complete blood count; plasma albumin, iron, ferritin, transferrin saturation, and total iron-binding capacity were measured in all infants [30].
• METHOD: The effects of radiation on cervical (SiHa, CC-1, and C33a) and vulvar (SW962) cancer cell lines under various experimental conditions were evaluated using clonogenic, Coulter Counter, electrophoretic mobility shift (EMSA) and a multi-probe RNase protection assay of p53-inducible genes [31].

Analytical, diagnostic and therapeutic context of Counter

• Maintenance of normal platelet morphology as determined by phase-contrast microscopy, extent of shape change response, and the size distribution according to the Coulter Counter correlated with recovery in vivo [32].
• The measurements of mitochondrial populations using the Coulter Counter and electron microscopy are in good agreement [19].
• A Coulter Counter was used to follow the crystallization and decrease in soluble (14) C-oxalate was measured to determine the deposition of CaOx [33].
• Scanning electron microscopy, light microscopy, Coulter Counter measurements and x-ray microanalysis were used to evaluate crystal formation [34].
• Tritiated thymidine autoradiography was used to study myocyte nuclear development, and isolated myocytes were prepared to evaluate cell-size changes by using a Coulter Counter system (Coulter Electronics, Hialeah, Florida) [35].

References