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Topic: Hypoxic hypoxia

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	Hypoxia (medical) - Wikipedia, the free encyclopedia
		Hypoxia is a pathological condition in which the body as a whole (generalised hypoxia) or region of the body (tissue hypoxia) is deprived of adequate oxygen supply.
		Severe hypoxia induces a blue discolouration of the skin, called cyanosis (haemoglobin is blue when it is not bound to oxygen (deoxyhaemoglobin), as opposed to the rich red colour that it has when bound to oxygen (oxyhaemoglobin)).
		The term "hypoxic hypoxia" refers to the fact that hypoxia occurs as a consequence of low partial pressure of oxygen in arterial blood, in contrast to the other causes of hypoxia listed below, in which the partial pressure of oxygen in arterial blood is normal.
	en.wikipedia.org /wiki/Hypoxia_(medical) (811 words)

	Hypoxia (disambiguation) - Wikipedia, the free encyclopedia
		Environmental hypoxia in sea water or oxygen depletion, a reduced concentration of dissolved oxygen in a water body leading to stress and death in aquatic organisms.
		Hypoxic zones, or dead zones, are hypoxic areas in the world's oceans.
		Oxygen saturation is a relative measure of the amount of oxygen that is dissolved or carried in a given medium and is therefore a measure of hypoxia or hypoxic conditions.
	en.wikipedia.org /wiki/Hypoxia (286 words)

	Am J Respir Crit Care Med
		Moreover, high expression and activation of p66 in hypoxic young and in normoxic old myocardia suggests a pathological increase of the response to oxidative stress in the former and a physiological progressive increase in the latter.
		We previously demonstrated that intermittent hypoxia evokes persistent changes in extracellular striatal dopamine, locomotor activity and executive function, using a rodent model emulating apnea of prematurity in which rat pups are exposed to 20-second bursts of hypoxic gas mix containing 10% oxygen (60 events/h; 6 h/day) from postnatal days 7 to 11.
		Intermittent hypoxia (IH) was simulated at 2 km (16.0% O2) or 5 km (10.8% O2) in a hypobaric chamber for 4 h/day from birth to 1, 2, 3, or 4 week(s), respectively.
	www.go2altitude.com /data/05_06.htm (6995 words)

	Hypoxia (Site not responding. Last check: 2007-10-30)
		Hypoxia is a state of oxygen deficiency in the body which is sufficient to cause an impairment of function.
		Hypoxia is caused by the reduction in partial pressure of oxygen, inadequate oxygen transport, or the inability of the tissues to use oxygen.
		[This is the hypoxia that is a hazard to aviators.]
	www.batnet.com /mfwright/hypoxia.html (276 words)

	Hypoxia Definition Page
		Hypoxia means "low oxygen." In estuaries, lakes, and coastal waters low oxygen usually means a concentration of less than 2 parts per million.
		Hypoxia can cause fish to leave the area and can cause stress or death to bottom dwelling organisms that can't move out of the hypoxic zone.
		The hypoxic zone is thought to be caused primarily by excess nitrogen delivered from the Mississippi River in combination with seasonal stratification (layering) of Gulf waters.
	toxics.usgs.gov /definitions/hypoxia.html (506 words)

	Cancer Therapy with a Replicating Oncolytic Adenovirus Targeting the Hypoxic Microenvironment of Tumors -- Post et al. ...
		hypoxia was mostly confined to the necrotic center (5).
		Hypoxic tumor regions were visualized by assaying for alkaline phosphatase activity in situ (fl precipitate) using the BCIP/NBT enzyme substrate.
		mediator of biological responses to hypoxia, is overexpressed
	clincancerres.aacrjournals.org /cgi/content/full/10/24/8603 (5426 words)

	Circadian rhythms of body temperature and activity levels during 63 h of hypoxia in the rat -- Bishop et al. 279 (4): ...
		During hypoxia endogenous opioids are elevated (16) and may contribute to a decline in the T
		Hypoxia is a common stimulus encountered whenever one experiences sleep apnea, climbs mountains, or suffers a pulmonary disease.
		The role of behavioral thermoregulation as a thermoeffector during prolonged hypoxia in the rat.
	ajpregu.physiology.org /cgi/content/full/279/4/R1378 (4236 words)

	[No title]
		Hypoxia- and hypercapnia-induced DC potential shifts in rat at the scalp and the skull are opposite in polarity to those at the cerebral cortex
		Hypoxia induces p53 accumulation in the S-phase and accumulation of hypophosphorylated retinoblastoma protein in all cell cycle phases of human melanoma cells
		Hypoxia inhibits the induction of argininosuccinate synthetase by endotoxin in lung endothelial cells
	www.stanford.edu /~giaccia/hypoxia.html (10760 words)

	Critical Care \| Full text \| Intramucosal–arterial PCO2 gap fails to reflect intestinal dysoxia in hypoxic hypoxia
		Hemoglobin concentration, and arterial, mixed venous, and mesenteric venous blood gases and oxygen saturations in basal conditions, and during IH and HH and in the sham group are shown in Table 1.
		This gradient increases in ischemia and is preserved in hypoxia.
		Other situations in which intramucosal acidosis could arise with preserved tissue perfusion are reperfusion injury [31] and cytopathic hypoxia generated by endotoxemia [32], with cellular damage and metabolic abnormalities as underlying mechanisms.
	ccforum.com /content/6/6/514 (3388 words)

	Effects of hypoxic hypoxia on O2 uptake and heart rate kinetics during heavy exercise -- Engelen et al. 81 (6): 2500 -- ...
		Effects of hypoxic hypoxia on O2 uptake and heart rate kinetics during heavy exercise -- Engelen et al.
		A second purpose of this study was test how hypoxia affected the heart rate response during heavy exercise and in recovery.
		at the onset of heavy exercise was unaltered by hypoxia.
	jap.physiology.org /cgi/content/full/81/6/2500 (4117 words)

	GO2Altitude Hypoxicator for simulated altitude training.
		Developmental and metabolic implications of the hypoxic ventilatory response.
		Decreased neuronal excitability in hippocampal neurons of mice exposed to cyclic hypoxia.
		Induction of HIF-1a in response to hypoxia is instantaneous.
	www.go2altitude.com /scientific.html (7393 words)

	Hypoxico Altitude Training Systems - World Leaders in Altitude Tents \| Chambers \| Mask Devices - which simulate High ...
		Altitude training, also known as hypoxic training, involves exercising in, living in or otherwise breathing oxygen reduced air for the purpose of improved athletic performance, pre-acclimatization to altitude and/or physical wellness.
		Through the production of normobaric hypoxic (oxygen reduced) air, we can simulate altitudes of up to 21,000ft/6,400m.
		When the human body is exposed to hypoxia (oxygen reduced environments), it struggles to produce required amounts of energy with less available oxygen.
	www.hypoxico.com (201 words)

	Acetylsalicylic Acid Increases Tolerance Against Hypoxic and Chemical Hypoxia -- Riepe et al. 28 (10): 2006 -- Stroke
		hypoxic hypoxia and chemical hypoxia and delays the decline
		The PSA upon hypoxia and recovery was determined in slices prepared
		Typical set of population spikes in hippocampal region CA1 upon hypoxia and recovery thereof in control slices (top) and slices prepared from animals treated in vivo with 20 mg/kg body wt acetylsalicylic acid (bottom).
	stroke.ahajournals.org /cgi/content/full/28/10/2006 (2708 words)

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