Category: D

  • Desferroxamine manganese

    An iron chelating agent, (i.e., it chemically binds to iron atoms in the blood, thus trapping the iron atoms. The molecule also acts as an hSOD mimic by capturing harmful oxygen free radicals in the blood before they damage the walls of blood vessels. Recent research indicates that desferroxamine manganese may be useful in blocking…

  • Deoxynivalenol

    A mycotoxin, also known as DON.  

  • Denitrification

    Reduction of nitrate to nitrites or into gaseous oxides of nitrogen, or even into free nitrogen by organisms. In botany, the process by which nitrogen is released from the soil by the action of denitrifying bacteria.  

  • Dendritic polymers

    Polymers (i.e., molecules composed of repeating atomic units within the molecule) that repeatedly branch (while “growing” due to the addition of more atoms in a repeating pattern) until that branching is stopped (e.g., by physical constraints, for those polymers within living tissues). In the absence of physical constraints, dendritic polymers can continue branching (and growing)…

  • Dendritic langerhans cells

    A type of cell, located in the mucous membranes of the mouth and genital areas, that permits the human immunodeficiency virus (i.e., the virus that causes AIDS) to enter and infect the body—even when there are no cuts or abrasions through those mucous membranes.  

  • Dendrimers

    Polymers (i.e., molecules composed of repeating atomic units within the molecule) that repeatedly branch (while “growing” due to addition of more atoms in a repeating pattern) until that branching is stopped by the physical constraint of contacting itself (i.e., having formed a complete, hollow sphere). Discovered during the 1970s by Donald Tomalia, dendrimers possess sites…

  • Denaturing polyacrylamide gel electrophoresis

    The use of page (polyacrylamide gel electrophoresis) in order to separate and analyze DNA fragments (sequences) after that DNA is first denatured. This methodology can be utilized to scan DNA in order to detect point mutations.  

  • Denatured DNA

    DNA that has been converted from double-stranded to single-stranded form by a denaturation process such as heating the DNA solution. In the case of heat denaturation, the solution becomes very gelatinous and viscous. An acronym for the chemical and physical state of DNA after melting or after treatment with other chemical or physical agents.  

  • Delaney clause

    Formerly part of American federal law ( 1 959 Delaney amendment to Food, Drug and Cosmetic Act), it was eliminated during 1 996. The Delaney Clause had set a zero-risk tolerance level for carcinogenic pesticide residues in processed foods. A clause in the U.S. Food, Drug, and Cosmetic Act that bans any additive that causes…

  • Dehydrogenation

    The removal of hydrogen atoms from molecules. When those molecules are the components of vegetable oils/fats, this results in a lower content percentage of “saturated” fats. The removal of hydrogen from a molecule, as in cellular oxidation. Removal of hydrogen ions. It is catalyzed by a group of enzymes called dehydrogenases.