Respiratory activity

Practically no menthone was found in either oil, but in the oil obtained from the plant after flowering and complete maturation, an appreciable quantity of menthone was found. It is thus clear that the menthone is formed, as would be expected, principally during the period of the greatest respiratory activity. 

Watanabe, T., Mimura, N., Takimoto, A., and Nakamura, T. (1975). Luminescence and respiratory activities of Photobacterium phosphoreum. Competition for cellular reducing power. J. Biochem. 77 1147-1155. 

Explain how blood volume, sympathetic stimulation of the veins, skeletal muscle activity, and respiratory activity influence venous return... 

The brain has a number of characteristics that make it especially susceptible to free- radical-mediated injury. Brain lipids are highly enriched in polyunsaturated fatty acids and many regions of the brain, for example, the substantia nigra and the striatum, have high concentrations of iron. Both these factors increase the susceptibility of brain cell membranes to lipid peroxidation. Because the brain is critically dependent on aerobic metabolism, mitochondrial respiratory activity is higher than in many other tissues, increasing the risk of free radical Teak from mitochondria conversely, free radical damage to mitochondria in brain may be tolerated relatively poorly because of this dependence on aerobic metabolism. 

Field First Aid Death may come very quickly to anyone who inhales cyanide. Roughly 15 seconds after inhalation of a high concentration of cyanide vapor there is a transient hyperpnea (rapid or deep breathing) followed in 15 to 30 seconds by the onset of convulsions. Respiratory activity stops two or three minutes later, and cardiac activity ceases several minutes after that, or about six to minutes after exposure. With that process provided above, it really is amazing that so many people actually survive. Successful treatment for... 

Haxhiu MA, Erokwu B, van Lunteren E, et al. 1993. Central and spinal effects of sodium cyanide on respiratory activity. J Appl Physiol 74(2) 574-579. 

Pettersen JC, Cohen SD. 1993. The effects of cyanide on brain mitochondrial cytochrome oxidase and respiratory activities. J Appl Toxicol 13(1) 9-14. 

The pH of the water on the surface of a submerged soil often depends on the activity of photosynthetic organisms. Photosynthesis by aquatic plants and algae removes dissolved CO2 during the day, but at night the net respiratory activity of the organisms returns CO2 to the water and the concentration of dissolved CO2 and acidity increase ... 

Nobel and Wang reported that the permeability of the outer membranes of chloroplasts was increased by exposure to ozone (at 30 ppm for 5 min). They hypothesized that the effect was lipid oxidation. Freebaim showed that ozone inhibited respiratory activities of isolated mitochondria, and Lee found that the effect of ozone on oxidative phosphorylation was greater than on oxygen uptake. Mudd et reported that the metabolism of UDP-galactose by isolated... 

The assay microorganisms in Polytox are a blend of bacterial strains originally isolated from wastewater [48]. The Polytox kit (Microbiotest Inc., Nazareth, Belgium), specifically designed to assess the effect of toxic chemicals on biological waste treatment, is based on the reduction of respiratory activity of rehydrated cultures in the presence of toxicants. The commercially available kit is specihcally designed for testing wastewaters. Quantative results can be obtained in just 30 minutes. 

Muta-Chromoplate Kit from wastewater, reduction of respiratory activity Modified version of Ames test [55]... 

Shirakawa T, Kusaka Y, Fujimura N, et al. 1990. Hard metal asthma - cross immunological and respiratory activity between cobalt and nickel. Thorax 45 267-271. 

Burnet H, Bevengut M, Chakri F, Bou-Flores C, Coulon P, Gaytan S, Pasaro R, Hilaire G (2001) Altered respiratory activity and respiratory regulations in adult monoamine oxidase A-deficient mice. J Neurosci 21 5212-5221... 

Koenigsberg HW, Poliak CP, Fine J, Kakimia T (1994) Cardiac and respiratory activity in panic disorder effects of sleep and sleep lactate infusions. Am J Psychiatry 151 1148-1152 Kramer MS, Cutler NR, Ballenger JC, Patterson WM, Mendels J (1995) A placebo-controlled trial of L-365,260, a CCK antagonist, in panic disorder. Biol Psychiatry 37 462-466 Le Mell4do JM, Bradwein J, Koszycki D, Bichet DG, BeUavance F (1998) The role of the P-noradrenergic system in cholecystokinin-tetrapeptide-induced panic symptoms. Biol Psychiatry 44 364-366... 

Zielezny Y., J. Groeneweg, H. Veieecken, and W. Tappe (2006). Impact of sulfadiazine and chlorotetracycline on soil bacterial community structure and respiratory activity. Soil Biology and Biochemistry 38 2372-2380. 

A further possibility is the use of a mediated amperometric biosensor incorporating activated sludge to provide rapid determination of toxicity [79]. The respiratory activity of this biosensor is determined by using the redox mediator p-benzoquinone. 

Koenigsberg HW, Poliak CP, Fine J, et al Cardiac and respiratory activity in panic disorder effects of sleep and sleep lactate infusions. Am J Psychiatry 151 1148-1152, 1994... 

During spinal anesthesia, motor paralysis may impair respiratory activity, and residual autonomic nerve blockade can lead to hypotension upon ambulation. Residual autonomic blockade also interferes with bladder function, resulting in urinary retention and the need for bladder catheterization. 

Those related to the respiratory apparatus are of special interest DPDPE causes a dose dependent increase in foetal respiratory activity which was blocked by administration of naloxone (Cheng et al., 1992). These stimulatory effects of selective 5 agonists may be of clinical value in treating respiratory disorders such as apnoea. 

Some, but not all, fruits that are regarded as nonclimacteric are characterized by low respiratory activity.543 It should be noted that Trout and coworkers545,546 expressed doubt of the generally accepted classification of citrus fruits as nonclimacteric. Clarification of whether these and other fruits, such as fig, grape, strawberry, and pineapple, exhibit a truly nonclimacteric pattern of ripening may come from further study. 

---