| Fd | <protein> Low molecular weight iron sulphur proteins that transfer electrons from one enzyme system to another without themselves having enzyme activity. (18 Nov 1997) |
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| FDA | The U.S. Agency responsible for regulation of biotechnology foodproducts. The major laws under which the agency has regulatory powersinclude the Food, Drug, and Cosmetic act, and the Public Health Service Act. (09 Oct 1997) |
| FDNB | A reagent used to combine with the free NH2 group of the NH2-terminal amino acid residue in a peptide, thus marking this residue; the combined forms are known as DNP-proteins, Dnp-aminoacyl, etc., the fluorine having been replaced to leave a dinitrophenyl residue (DNP, Dnp, or N2Ph-) attached to the NH2 group. Synonym: Sanger's reagent. Acronym: FDNB (05 Mar 2000) |
| FDP | <haematology, investigation> A test that measures fibrin degradation products which result from the dissolution of a blood clot. Normal value is less than 10 mcg/ml (micrograms per millilitre). They may be increased in conditions such as burns, placental abruption, heart disease, DIC, after massive blood transfusion, hypoxia, intrauterine foetal death, portacaval shunt, leukaemia, transfusion reaction, transplant rejection, sepsis, renal failure and preeclampsia. Acronym: FDP (23 Sep 2002) |