... . Thus these ions probably play a primary role in bringing polymers together directly. Imine bonds formed as a result of protein oxidation also contribute substantially to the stiffness of the glue. Disrupting these bonds with hydroxylamine caused a 33% decrease in storage modulus of the glue, while...

... fibroblast stress oxidation Evolutionary senescence theory postulates that aging results from the declining force of natural selection with increasing chronological age ( Medawar and Wolstenhilme, 1955 ; Charlesworth, 1993 ). A goal of comparative studies in the biology of aging is to identify...

...-catalyzed oxidation plays a role. The extent and time course of protein oxidation was measured by immunoblotting to detect the resulting carbonyl groups. Several proteins, particularly one with a relative molecular mass ( M r ) of 165×10 3 , were heavily oxidized. Of the proteins known to distinguish...

... be formulated to explain the results: (i) oxidative damages occur in desiccated specimens of P. richtersi , and (ii) high temperatures and high RH values change the state of the disaccharide trehalose, reducing its protective role. Anhydrobiosis is a highly stable state of suspended animation...

...-pigmentary antioxidant(melatonin) in the drinking water. If the antioxidant properties of melatonin protect carotenoids from oxidation, we predict that birds supplemented with melatonin should have redder bills than birds not supplemented with melatonin,and that birds supplemented with carotenoids...

... metabolite flux, and R. pachyptila proton elimination is, to our knowledge, the most rapid reported for any metazoan. Proton elimination rates by R. pachyptila and L. cf luymesi correlated primarily with the rate of sulfide oxidation. Prolonged exposure to low environmental oxygen concentrations completely...

... in the low susceptibility to autoxidation. The low oxidation rate of hagfish haemoglobin, together with an oxidation rate of lamprey haemoglobin that did not differ from that of carp and yellowfin tuna haemoglobins, also revealed that autoxidation was not accelerated in the monomeric oxyhaemoglobins. Pig...