Calcitriol molecule
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Calcitriol molecule
Calcitriol molecule. Computer model showing the structure of a molecule of the secosteroid hormone calcitriol. Atoms are colour-coded (carbon: grey, hydrogen: white, oxygen: red). Calcitriol is an active form of vitamin D (cholecalciferol) produced from calcifediol by enzymes in the kidneys. Calcifediol itself is produced by the hydroxylation of vitamin D3 in the liver. Calcitriol increases gastrointestinal calcium absorption, stimulates osteoclastic calcium resorption from bone, facilitates the effect of parathyroid hormone (PTH) on bone resorption, and increases renal (kidney) tubular absorption of calcium
Science Photo Library features Science and Medical images including photos and illustrations
Media ID 6300221
© LAGUNA DESIGN/SCIENCE PHOTO LIBRARY
Atom Atoms Compound Endocrinology Hormonal Metabolic Metabolism Molecular Biology Space Fill Space Filled Steroid Vitamin D Bio Chemistry Biochemical Molecular Model Molecular Structure
EDITORS COMMENTS
This print showcases the intricate structure of the calcitriol molecule, a secosteroid hormone that plays a crucial role in our body's metabolism. The computer-generated model beautifully highlights the arrangement of atoms, with carbon depicted in grey, hydrogen in white, and oxygen in red. Calcitriol is an active form of vitamin D, derived from calcifediol through enzymatic processes occurring primarily in the kidneys. Calcifediol itself is produced by liver hydroxylation of vitamin D3. This remarkable hormone serves multiple vital functions within our system. One significant function of calcitriol is its ability to enhance gastrointestinal calcium absorption. Additionally, it stimulates osteoclastic calcium resorption from bones and facilitates the effect of parathyroid hormone on bone resorption as well. Furthermore, calcitriol increases renal tubular absorption of calcium within the kidneys. The molecular structure captured here sheds light on how this steroid-like compound interacts with various biological processes related to calcium regulation and bone health. Its metabolic and hormonal properties make it indispensable for maintaining optimal levels of this essential mineral throughout our bodies. Displayed against a clean white background, this image not only exemplifies cutting-edge biochemistry but also represents an invaluable tool for researchers studying endocrinology and molecular biology. It provides valuable insights into vitamin D production pathways while showcasing the complexity and beauty inherent within biochemical structures like calcitriol.
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