The world's first wiki where authorship really matters (Nature Genetics, 2008). Due credit and reputation for authors. Imagine a global collaborative knowledge base for original thoughts. Search thousands of articles and collaborate with scientists around the globe.

wikigene or wiki gene protein drug chemical gene disease author authorship tracking collaborative publishing evolutionary knowledge reputation system wiki2.0 global collaboration genes proteins drugs chemicals diseases compound
Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 
 
 
 
 

Influence of tocopherol, its chromane compound, phytyl chains and superoxide dismutase on increased vascular resistance and permeability due to arachidonate metabolism in isolated rabbit lung.

In the model of isolated, ventilated rabbit lungs, perfused with isoionic and isooncotic fluid, the addition of arachidonic acid to the perfusion fluid or the liberation of arachidonic acid by the Ca-ionophore A 23187 result in an increase in pulmonary vascular resistance and permeability. The former can be ascribed to cyclooxygenase products, the latter to lipoxygenase products of arachidonic acid. The effect of alpha-tocopherol, its chromane compound, alpha-tocopherolquinone, phytol, 2-methyl-1,4-naphthoquinone, 2-methyl-3-phytyl-1,4-naphthoquinone and of superoxide dismutase (SOD) on the increase in pulmonary vascular resistance and permeability was investigated. A membrane effect of the phytyl side chain and an antioxidative effect of the chromane compound can be distinguished: phytol increase the arachidonate-induced rise of pulmonary vascular resistance and permeability, whereas the chromane compound decreases both to a large degree. Methyl-phytyl-naphthoquinone and methyl-naphthoquinone gave equivalent results. SOD decreases the enhanced vascular resistance and the vascular leakage. The possibility of antioxidative therapy in acute pulmonary lesions with vascular leakage and increased vascular resistance is discussed.[1]

References

 
WikiGenes - Universities