title: The vitamin D system: 1990.
abstract: Many new aspects of vitamin D have made their appearance. New roles for vitamin D in reproduction, parathyroid function, skin proliferation, and differentiation, in myeloid cell differentiation, and as anti-cancer agents will be new areas of investigation. At the basic science level, much effort will be expended to understand how the vitamin D hormone and its receptor bring about gene expression and how these expressed genes bring about cellular functions of the vitamin D system. Similarly, future work will center on the molecular mechanism of regulation of the hydroxylases of the vitamin D endocrine system. All of this is based on the original discovery that vitamin D must be first metabolically altered before function, producing the vitamin D hormone 1 alpha,25-(OH)2D3 in the proximal convoluted tubule cells of the kidney. There is no doubt that the vitamin D area will continue to expand in the next decade as new functions of the vitamin D system are uncovered.
authors.affiliation: Department of Biochemistry, University of Wisconsin-Madison, College of Agricultural and Life Sciences.
authors.forename: H F
authors.initials: HF
authors.lastname: DeLuca
authors.forename: J
authors.initials: J
authors.lastname: Krisinger
authors.forename: H
authors.initials: H
authors.lastname: Darwish
mesh_terms: D000595:Amino Acid Sequence; D000818:Animals; D002117:Calcitriol / Q000737:chemistry / Q000502:physiology*; D006801:Humans; D008969:Molecular Sequence Data; D018167:Receptors, Calcitriol; D011987:Receptors, Steroid / Q000235:genetics; D014807:Vitamin D / Q000502:physiology*
chemical_list: D018167:Receptors, Calcitriol; D011987:Receptors, Steroid; D014807:Vitamin D; D002117:Calcitriol