xanthine in a sentence

• Xanthines such as caffeine and theobromine are cAMP-phosphodiesterase inhibitors.
• It is caused by a deficiency of the enzyme xanthine oxidase.
• Caffeine, like other xanthines, also acts as a phosphodiesterase inhibitor.
• This pathway also is independent of the enzyme activity of xanthine oxidase.
• By inhibiting xanthine oxidase, it reduces uric acid production.
• Hypoxanthine is produced from adenine, xanthine from guanine.
• The xanthine core of caffeine contains two fused rings, a pyrimidinedione and imidazole.
• First, guanine gets deaminated to become xanthine.
• Synthesis of theobromine from xanthine was first reported in 1882 by Hermann Emil Fischer.
• In the liver, theobromine is metabolized into xanthine and subsequently into methyluric acid.
• It's difficult to see xanthine in a sentence .
• Inhibition of xanthine oxidase has been proposed as a mechanism for improving cardiovascular health.
• *Alloxanthine is an inhibitor of xanthine oxidase.
• It is also an isostere of xanthine, the normal substrate for the enzyme.
• AO is very similar in amino acid sequence to xanthine oxidase ( XO ).
• Biologically relevant molecules identified so far include uracil, an RNA nucleobase, and xanthine.
• Xanthine oxidase inhibitors block uric acid production.
• Other enzymes capable of producing superoxide are xanthine oxidase, NADPH oxidases and cytochromes P450.
• It is degraded by xanthine dehydrogenase to 2, 8-dihydroxyadenine ( DHA ).
• "' Xanthosine "'is a nucleoside derived from xanthine and ribose.
• The active metabolite of allopurinol is oxypurinol, which is also an inhibitor of xanthine oxidase.