10 Questions
What is the role of retinol binding protein in the transport of retinol?
To bind to retinol and transport it to extrahepatic tissues
What is the function of retinol in the retina?
To convert into retinal essential for vision
How many genes have been shown to be directly regulated by retinoic acid?
At least 130 genes
What is the role of retinol in maintenance of epithelial cells?
To maintain normal differentiation of epithelial cells
What is the role of retinol in reproduction?
To support sperm formation in males and maintain fetal life in females
What is the function of retinoic acid in cells?
To bind to specific nuclear receptors
What is the outcome of retinoic acid binding to specific nuclear receptors?
Stimulation of gene expression
What is the role of retinol in the maintenance of the cornea?
To maintain the integrity of the cornea
What is the mode of action of retinoic acid similar to?
Hormones
What is the function of retinol in growth and development?
To support normal growth and development
Understand the role of vitamin D in regulating serum calcium and phosphorus levels, and its mechanism of action through calcitriol and the vitamin D receptor. Learn how parathyroid hormone and calcitonin interact with vitamin D to maintain calcium homeostasis.
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