(n.) A colorless, tasteless, odorless, gaseous element occurring in the free state in the atmosphere, of which it forms about 23 per cent by weight and about 21 per cent by volume, being slightly heavier than nitrogen. Symbol O. Atomic weight 15.96.
(n.) Chlorine used in bleaching.
Example Sentences:
(1) Steady-state values of cell, glucose, and cellulase concentration oxygen tension, and outlet gas oxygen partial pressure were recorded.
(2) It is concluded that amlodipine reduces myocardial ischemic injury by mechanism(s) that may involve a reduction in myocardial oxygen demand as well as by positively influencing transmembrane Ca2+ fluxes during ischemia and reperfusion.
(3) Heart rate (HR), pulmonary ventilation (V), oxygen consumption (VO2), carbon dioxide production (VCO2), and respiratory quotient (RQ) were measured.
(4) Manometric studies with resting cells obtained by growth on each of these sulfur sources yielded net oxygen uptake for all substrates except sulfite and dithionate.
(5) The data indicate that ebselen is likely to be useful in the therapy of inflammatory conditions in which reactive oxygen species, such as peroxides, play an aetiological role.
(6) These membrane perturbation effects not observed with bleomycin-iron in the presence of a hydroxyl radical scavenger, dimethyl thiourea, or a chelating agent, desferrioxamine, were correlated with the ability of the complex to generate highly reactive oxygen species.
(7) Microelectrodes were used to measure the oxygen tension (PO2) profile within individual spheroids at different stages of growth.
(8) However, time in greater than 21% oxygen was significantly longer in infants less than 1000 g (median 30 days, 8.5 days in patients greater than 1000 g, p less than 0.01).
(9) Previous studies have not evaluated the potential for oxygen toxicity at 9.5 psia.
(10) The pH of ST solutions varied with the mode of oxygenation as follows: 7.9-8.2 in Groups I and IV; 8.7-8.9 in Groups II and V; 7.1-7.4 in Groups III and VI.
(11) The aim of this study was to plot the course of the transcutaneously measured PCO2 (tcPCO2) in the fetus during oxygenation of the mother.
(12) Blood gas variables produced from a computed in vivo oxygen dissociation curve, PaeO2, P95 and C(a-x)O2, were introduced in the University Hospital of Wales in 1986.
(13) Also for bronchogenic carcinoma with that a dependence could be shown between haemoglobin concentration--and by this the oxygen supply of the tumor--and the reaction of the primary tumor after radiotherapy.
(14) The present results using approximately 12% hemoglobin concentration in 0.1 M Bistris buffer at pD 7 and 27 degrees C with and without organic phosphate show that there is no significant line broadening on oxygenation (from 0 to 50% saturation) to affect the determination of the intensities or areas of these resonances.
(15) There was good agreement between the survival of normally oxygenated cells in culture and bright cells from tumors and between hypoxic cells in culture and dim cells from tumors over a radiation dosage range of 2-5 Gray.
(16) In presence of oxygen (air) the phototactic reaction values are somewhat lower than in its absence.
(17) A fiberoptic flow-directed catheter inserted into the hepatic vein continuously measures hepatic venous oxygen hemoglobin saturation (ShvO2).
(18) Anaesthesia was achieved by a mixture of oxygen, nitrous oxide and fluothane without use of muscle relaxants.
(19) The use of 100% oxygen to calculate intrapulmonary shunting in patients on PEEP is misleading in both physiological and methodological terms.
(20) Tachycardia, pulmonary hypertension, increased venous oxygen desaturation, and increasing core temperature develop as the syndrome progresses.
Sesquioxide
Definition:
(n.) An oxide containing three atoms of oxygen with two atoms (or radicals) of some other substance; thus, alumina, Al2O3 is a sesquioxide.
Example Sentences:
(1) A decreased number of alveolar macrophages was found in washings from lungs of rats inhaling small particles of lead sesquioxide for 3 to 12 months, as compared with control animals exposed to filtered air.
(2) The modifying potential of allyl sulfide (AS), indole-3-carbinol (I3C) and carboxyethylgermanium sesquioxide (GE) on lesion development was examined in a wide-spectrum initiation model.
(3) After a brief recall of toxicological data about germanium compounds, the authors relate subacute and subchronic oral toxicities of beta bis carboxyethyl-germanium sesquioxide in rats.
(4) The effects of dicarboxyethenylgermanium sesquioxide (DCG) on electrical and mechanical activity in isolated guinea pig papillary muscles and rabbit sinus node were studied by intracellular capillary glass electrode.
(5) The effect of carboxyethylgermanium sesquioxide (Ge-132) on cultured neonatal rat myocytes and isoproterenol injured myocytes was studied.
(6) In a murine model it has been shown that the antitumor activity of carboxyethylgermanium sesquioxide (Ge-132) can be depleted by administration of macrophage (M phi) blockers.
(7) In the rats given carboxyethylgermanium sesquioxide, these changes were not observed and Ge concentration of kidney was significantly lower than in the rats given GeO2.
(8) The fecal excretion values were similar when calculated using either beta-sitosterol or chromium sesquioxide as fecal flow markers.
(9) Since carboxyethylgermanium sesquioxide, Ge-132, has been reported to modulate both the immune response and leukocyte functions, we have studied in vivo effect of Ge-132 on plasma SSA and other laboratory parameters in these disorders.
(10) Chronic nephrotoxicity was investigated in rats orally administered germanium dioxide (GeO2) and carboxyethylgermanium sesquioxide (Ge-132) for 24 weeks.
(11) In rats anesthetized with urethane, intraperitoneal administration of a water-soluble organogermanium compound 2-carboxyethyl germanium sesquioxide (Ge-132) produced a dose-related reduction in either the mean arterial pressure or the heart rate.
(12) Chromium sesquioxide Cr2O3, present as a non-absorbable marker in faeces, may be determined spectrophotometrically as chromate ion in aqueous solution after ashing and alkaline fusion.
(13) Twenty-eight species of carboxyethyl germanium sesquioxide (Ge-132) derivatives were examined for their inhibitory effects on enkephalin-degrading enzymes that were purified from monkey brain, the longitudinal muscle layer of bovine small intestine, and human cerebrospinal fluid (CSF).
(14) Sufficient evidence for a role of organogermanium compounds, such as carboxyethyl germanium sesquioxide or citrate-lactate germanate, in Ge-induced nephrotoxicity remains lacking.
(15) In recent years inorganic germanium salts and novel organogermanium compounds, such as carboxyethyl germanium sesquioxide (Ge-132) and lactate-citrate-germanate (Ge lactate citrate) have been sold as "nutritional supplements" in some countries for their purported immunomodulatory effects or as health-producing elixirs, resulting in intakes of Ge significantly exceeding the estimated average dietary intake.
(16) The bulk (greater than or equal to 80%) of a single dose of a fecal marker, chromium sesquioxide, which could be incorporated into a specific day's fiber supplement, was recovered in 5 days of excretion during the control period and in 4 days during the bran period.
(17) The carboxyethylgermanium sesquioxide, Ge-132, is an organogermanium compound which has been shown to modulate leukocyte functions.
(18) The protective effect of carboxyethylgermanium sesquioxide (Ge-132) in mice infected with a mouse-adapted strain of influenza virus (H2N2) was investigated.
(19) There was no significant difference in the rate of throughput of polyethylene glycol (a liquid phase marker) and chromium sesquioxide (a solid phase marker) in healthy volunteers (n = 7) and hospital inpatients (n = 5) with normal bowel habit, so that streaming does not usually occur.
(20) Radio-opaque pellets (ROP) similar to those currently used to measure gastrointestinal transit time have been compared with chromium sesquioxide to assess their suitability for use as inert markers in the gut.