Ball And Stick Gallery

Januvia diabetes drug molecule

Januvia diabetes drug, molecular model. Januvia (sitagliptin) is a hypoglycaemic drug, one that reduces blood sugar levels. Diabetes is a condition in which blood sugar levels can get dangerously high due to a lack of insulin, the hormone that reduces them. Januvia works by inhibiting the enzyme dipeptidyl peptidase-4 (DPP- 4). DPP-4 rapidly deactivates the incretin hormone GLP-1 (glucagon-like peptide 1), which promotes insulin release. Hence, inhibiting DPP-4 prolongs the effects of GLP-1, keeping insulin levels high. Atoms are colour-coded: carbon (grey), hydrogen (yellow), oxygen (red), nitrogen (blue) and fluorine (green). Januvia is marketed by Merck, and was approved in the USA in October 2006

© DR MARK J. WINTER/SCIENCE PHOTO LIBRARY

Ionic bonding in sodium chloride, artwork C017/7242

Ionic bonding in sodium chloride. Computer artwork showing the formation (top) of sodium chloride (common salt) and a model of the cubic crystal lattice (bottom) created by this chemical reaction. This is a classic case of ionic bonding, a type of chemical bond formed through an electrostatic attraction between two oppositely charged ions. Ionic bonds are formed due to the attraction between an atom that has lost one or more electron (known as a cation) and an atom that has gained one or more electrons (known as an anion). In the formation of sodium chloride, the sodium atom (top left) lost one electron, which is captured by the chlorine atom (top right). In the cubic crystal lattice, sodium ions (Na+) are represented by yellow spheres and chlorine ions

© CARLOS CLARIVAN/SCIENCE PHOTO LIBRARY

Clopidogrel anti-clotting drug molecule F005/6750

Clopidogrel anti-clotting drug molecule. This drug (brand name Plavix) is a an antiplatelet drug that inhibits thrombus (blood clot) formation. Atoms are represented as spheres and are colour-coded: hydrogen (white), carbon (grey), oxygen (red), nitrogen (blue), chlorine (green) sulphur (yellow)

© MOLEKUUL/SCIENCE PHOTO LIBRARY

Anti Clotting, Antiplatelet, Artwork, Ball And Stick, Biochemistry, Chemical, Chemistry, Clopidogrel, Drug, Human Health, Illustration, Large Group Of Objects, Magnification, Medical, Medication, Medicine, Molecular, Molecular Model, Molecular Structure, Molecule, Plavix, Structure, Thrombosis, Thrombosis Drug, Thrombus, Treatment, White Background