How to use Porphyrins in a sentence

porphyrins
  • Haem is one of a group of similar compounds called porphyrins.

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  • This gland secretes porphyrins (red tears) in response to stress.

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  • Excess porphyrins are excreted as waste in urine and stool.

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  • Overproduction and overexcretion of porphyrins causes low, unhealthy levels of heme and certain important enzymes, creating various physical symptoms.

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  • Owing to a defect in one of the enzymes of the heme biosynthesis pathway, protoporphyrins or porphyrins (heme precursors) are prevented from proceeding further along the pathway.

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  • The porphyrins and protoporphyrins in the sample absorb the light energy and fluoresce, or glow.

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  • The spectrofluorometer detects and measures fluorescence, which indicates the amount of porphyrins and protoporphyrins in the sample.

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  • In humans, porphyrins combine with iron to form hemes.

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