Biomaterial Database

[99mTc-HMPAO labeling of leukocytes and thrombocytes. Characteristics and diagnostic consequences]. 1988

W Becker, and W Börner

Abteilung für Nuklearmedizin, Universitätsklinik Würzburg.

The lipophilic complex 99mTc-hexamethylpropylene-amineoxime (HMPAO) is suitable for labelling of leukocytes and platelets in vitro. With a labelling efficiency of 35 to 70% of marked cells between 0.3 and 0.5 GBq of the 99mTc are re-injected into the patient. Problems in differential diagnosis arise particularly in lesions in the pelvis and abdomen because of the rapid renal elimination of the 99mTc complex, with accumulation in the kidneys and bladder. Two hours after injection, biliary excretion leads to intestinal activity. After 24 hours there was activity in the colon in all patients. In summary, labelling of cells with 99mTc-HMPAO provides a practical method based on an available radio nuclide which can be used as an alternative to 111In-oxine, but cannot altogether replace the latter method because of the specific properties and the short physical half-life of 99mTc.

UI	MeSH Term	Description	Entries
D007553	Isotope Labeling	Techniques for labeling a substance with a stable or radioactive isotope. It is not used for articles involving labeled substances unless the methods of labeling are substantively discussed. Tracers that may be labeled include chemical substances, cells, or microorganisms.	Isotope Labeling, Stable,Isotope-Coded Affinity Tagging,Isotopically-Coded Affinity Tagging,Affinity Tagging, Isotope-Coded,Affinity Tagging, Isotopically-Coded,Isotope Coded Affinity Tagging,Labeling, Isotope,Labeling, Stable Isotope,Stable Isotope Labeling,Tagging, Isotope-Coded Affinity,Tagging, Isotopically-Coded Affinity
D007962	Leukocytes	White blood cells. These include granular leukocytes (BASOPHILS; EOSINOPHILS; and NEUTROPHILS) as well as non-granular leukocytes (LYMPHOCYTES and MONOCYTES).	Blood Cells, White,Blood Corpuscles, White,White Blood Cells,White Blood Corpuscles,Blood Cell, White,Blood Corpuscle, White,Corpuscle, White Blood,Corpuscles, White Blood,Leukocyte,White Blood Cell,White Blood Corpuscle
D009942	Organometallic Compounds	A class of compounds of the type R-M, where a C atom is joined directly to any other element except H, C, N, O, F, Cl, Br, I, or At. (Grant & Hackh's Chemical Dictionary, 5th ed)	Metallo-Organic Compound,Metallo-Organic Compounds,Metalloorganic Compound,Organometallic Compound,Metalloorganic Compounds,Compound, Metallo-Organic,Compound, Metalloorganic,Compound, Organometallic,Compounds, Metallo-Organic,Compounds, Metalloorganic,Compounds, Organometallic,Metallo Organic Compound,Metallo Organic Compounds
D010091	Oximes	Compounds that contain the radical R2C	Aldoximes,Hydroxyimino Compounds,Ketoxime,Ketoximes,Oxime,Compounds, Hydroxyimino
D001792	Blood Platelets	Non-nucleated disk-shaped cells formed in the megakaryocyte and found in the blood of all mammals. They are mainly involved in blood coagulation.	Platelets,Thrombocytes,Blood Platelet,Platelet,Platelet, Blood,Platelets, Blood,Thrombocyte
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D019690	Technetium Tc 99m Exametazime	A gamma-emitting RADIONUCLIDE IMAGING agent used in the evaluation of regional cerebral blood flow and in non-invasive dynamic biodistribution studies and MYOCARDIAL PERFUSION IMAGING. It has also been used to label leukocytes in the investigation of INFLAMMATORY BOWEL DISEASES.	Tc-99m HMPAO,Technetium Tc 99m Hexamethylpropyleneamine Oxime,99m-Tc-HMPAO,99mTc-HMPAO,Ceretec,Tc-99m-Exametazime,Tc-99m-Hexamethylpropyleneamine Oxime,Technetium Tc 99m Hexamethylpropylene-amine Oxime,Tc 99m Exametazime,Tc 99m Hexamethylpropyleneamine Oxime,Technetium Tc 99m Hexamethylpropylene amine Oxime