Oxygen

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40707 relevant articles (1685 outcomes, 3830 trials/studies) found for this Bio-Agent

Description: An element with atomic symbol O, atomic number 8, and atomic weight 16. It is the most abundant element on earth and essential for respiration.

Also Known As:

Dioxygen

Relationship Network

Bio-Agent Context: Research Results

Experts

1.	Zhang, John H: 15 articles (09/2008 - 02/2002)
2.	Yildiz, Senol: 14 articles (08/2008 - 06/2003)
3.	Intaglietta, Marcos: 12 articles (10/2008 - 10/2003)
4.	Cabrales, Pedro: 10 articles (10/2008 - 10/2003)
5.	Bennett, M: 10 articles (03/2007 - 01/2001)
6.	Tsai, Amy G: 9 articles (10/2008 - 10/2003)
7.	Dewhirst, Mark W: 9 articles (01/2008 - 04/2002)
8.	Giaccia, Amato J: 8 articles (12/2007 - 01/2003)
9.	Hampson, Neil B: 7 articles (09/2008 - 06/2003)
10.	Freilich, Daniel: 7 articles (06/2008 - 10/2004)

Related Diseases

1.	Anoxia (Hypoxia) 11/01/2009 - "We found that (1) in contrast to oxygen partial pressure in blood (P(a)O(2)), the baseline value of P(t)O(2) in summer euthermic AGS is significantly higher than in rats; (2) both P(t)O(2) and P(a)O(2) are dramatically reduced by inspired 8% O(2) in AGS and rats, but AGS have a greater capacity in P(t)O(2) to cope with environmental hypoxia; (3) metabolic rate before, during, and after hypoxic exposure is consistently lower in AGS than in rats; (4) the respiratory responding patterns to hypoxia in the two species differ in that f(R) decreases in AGS but increases in rats. " 09/13/2004 - "Acute hypoxia reduced the median oxygen partial pressure (pO(2)) dramatically (1 vs 10 mmHg in controls), whereas in chronically hypoxic tumours the pO(2) was significantly improved (median pO(2)=4 mmHg), however not reaching the control level. " 07/04/1977 - "Portacaval transposition and end-to-side shunt led to a striking oxygen deficit of the liver tissue with no incidence of compensation by the hepatic artery; Oxygen supply was improved considerably by a side-to-side shunt and tissue hypoxia could be prevented by a mesenterico-caval shunt and splenocaval shunt. " 01/01/1995 - "Measurement of cardiac output and clinical assessment of the patients' oxygen requirements will complete the macro picture of supply and demand and although computed indicators of hypoxia have been improved in recent years (1, 2) the definitive diagnosis of histohypoxia requires the measurement of the cellular and subcellular products of metabolic processes that are present when an inappropriate concentration of oxygen has been experienced. " 09/24/1983 - "That the fall in oxygen saturation was significantly greater (p less than 0.05) in the obese non-responders suggests that central as well as mechanical factors may be important for the genesis of nocturnal hypoxia and is evidence for a disturbance of central nervous function in some obese women." Order ALL the reference details at left...
2.	Chronic Obstructive Pulmonary Disease (COPD) 01/01/2004 - "STUDY OBJECTIVES: Recently, we demonstrated significantly improved baroreflex sensitivity (BRS) and autonomic balance after 31% supplemental oxygen (SuppO2) in resting patients with chronic obstructive pulmonary disease (COPD). " 01/01/2006 - "Patients with advanced COPD presented significantly greater Borg and oxygen saturation changes than patients with less severe disease (p = 0.02 and p = 0.001, respectively). " 10/01/2004 - "CONCLUSION: High flows of humidified oxygen improved exercise performance in patients with COPD and severe oxygen dependency, in part by enhancing oxygenation." 01/01/1991 - "The absolute oxygen uptake at each RPE was significantly greater in the healthy subjects than in the patients with COPD. " 01/01/1989 - "Four COPD patients, who had a decrease over 5 mmHg in arterial oxygen tension (PaO2) at maximal exercise (group A), had significantly greater slope (0.45 +/- 0.14%/ml/min, mean +/- S.E.) than in five COPD patients (group B, 0.14 +/- 0.05), who did not have a decrease over 5 mmHg in PaO2 at maximal exercise. " Order ALL the reference details at left...
3.	Neoplasms (Cancer) 05/01/1992 - "Krogh cylinder models, which incorporate these data for perivascular oxygen tension, along with morphometric data obtained from the same tumor model suggest that hypoxic regions will exist between tumor vessels in the tumor center unless O2 consumption rates are well below 0.6 ml/100 g/min. The low perivascular measurements observed near the tumor center combined with the theoretical considerations suggest, for this model at least, that tissue oxygenation may best be improved by increasing red cell velocity and input pO2 and reducing oxygen consumption. " 03/15/2007 - "Although the tumors did not respond to oxygen inhalation, each tumor had a different pO(2), and there was a clear trend between level of oxygenation at time of irradiation and tumor growth delay, with considerably better outcome when mean pO(2) > 10 mm Hg. The comparatively small baseline hypoxic fraction in the group of small tumors was virtually eliminated by breathing oxygen, and the growth rate was significantly reduced for tumors on rats breathing oxygen during irradiation. " 03/15/2007 - "RESULTS: Large tumors (>3.0 cm(3)) exhibited significantly greater hypoxic fractions and lower mean partial pressure of oxygen (pO(2)) than their smaller counterparts (<1.5 cm(3)). " 07/01/2000 - "Polysomnography performed before and after total tumor resection showed significant improvement in nocturnal respiratory rate, respiratory disturbance index, and oxygen desaturation. " 03/01/1993 - "Administration of the NNK and exposure of the animals to an atmosphere of 65% oxygen resulted in a statistically significant reduction in tumor size but did not alter the histological tumor type or tumor incidence when compared with carcinogen treated animals maintained under ambient air. " Order ALL the reference details at left...
4.	Ischemia 09/01/1993 - "vasogenic oedema, progressive posttraumatic ischemia development, loss of microvascular autoregulation), 3. the striking similarity between posttraumatic CNS pathology and that caused by chemical peroxidative insult, and 4. the protective efficacy of oxygen radical scavenging agents or compounds that inhibit lipid peroxidation." 06/01/1991 - "A number of scavengers of reactive oxygen metabolites reduce myocardial injury when given before ischemia and reperfusion, but few, if any, have proven to be effective when given near the onset of reperfusion. " 08/01/2006 - "The signs of ischemia, measured by transcutaneous partial oxygen pressure and thermography, improved significantly. " 07/01/2004 - "Exp. 2: ARG infusion significantly improved gut blood perfusion ratio during ischemia but had no effect on oxygen tension. " 02/01/1996 - "Lazaroids are inhibitors of oxygen radical-induced lipid peroxidation, and proved beneficial in cases of CNS injury and ischemia. " Order ALL the reference details at left...
5.	Apnea 03/01/2006 - "PAP was highly effective, with a reduction in the apnea hypopnea index from 27 +/- 32 to 3 +/- 5/hour, and an improvement in arterial oxygen saturation nadir from 77 +/- 17% to 89 +/- 6%. " 08/01/1994 - " In 43.5% of cases (20 patients) there was an important reduction of length and number of apneas and a significant improvement in nocturnal oxygen saturation. " 08/01/1990 - "A 30- or 60-s delay in oxygen administration after onset of hypoxic apnea caused a marked decrease in the adults' ability to autoresuscitate, without affecting that of the pups. " 01/01/2007 - "There was a significant reduction in the apnea-hypopnea index, from a median of 46.5 (range: 33-140) to 16 (range: 0.9-87) events per hour (p < 0.05), an improvement in mean oxygen saturation from 85.7 +/- 5.1 to 94.5 +/- 3.6% (p < 0.05) and in minimum oxygen saturation from 64.7 +/- 13.4 to 78.7 +/- 13.7% (p < 0.05). " 05/01/2006 - "Patients with MD had a significantly greater frequency of apneic episodes, a significantly longer duration of apneas and hyponeas, and more oxygen desaturations per hour than those with md, but there were no differences between MD and ND in frequency of apneic episodes or oxygen desaturations. " Order ALL the reference details at left...

Related Drugs and Biologics

1.	Free Radicals
2.	Hemoglobins (Hemoglobin)
3.	Glucose (Dextrose)
4.	Lactic Acid
5.	Carbon Monoxide
6.	Nitrous Oxide (Laughing Gas)
7.	Carbon Dioxide
8.	Superoxide Dismutase
9.	Nitrogen
10.	Enzymes

Related Therapies and Procedures

1.	Resuscitation
2.	Mechanical Ventilators (Ventilator)
3.	Drug Therapy (Chemotherapy)
4.	Artificial Respiration (Mechanical Ventilation)
5.	Aftercare (After-Treatment)

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