| 21. | This enzyme participates in retinol metabolism.
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| 22. | Conversion of carotene to retinol varies from person to person and bioavailability of carotene in food varies.
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| 23. | Retinol then attaches to a serum carrier, retinol binding protein, for transport to target tissues.
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| 24. | Retinol then attaches to a serum carrier, retinol binding protein, for transport to target tissues.
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| 25. | The conversion of retinol to retinal is the rate-limiting step in the retinoic acid biosynthesis.
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| 26. | Some makers of multivitamins and vitamin A supplements have begun replacing some retinol with beta carotene, she said.
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| 27. | Retinol enters the absorptive cells of the small intestine, preferentially in the all-trans-retinol form.
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| 28. | Retinol enters the absorptive cells of the small intestine, preferentially in the all-trans-retinol form.
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| 29. | It is possible that a retinol ( vitamin A ) deficiency alone could cause albumin levels to become raised.
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| 30. | Retinol and retinoic acid play crucial roles in the modulation of gene expression and overall development of an embryo.
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