Pigment exchange

Description

Study of pigment exchange

Pigments, endogenous pigments (chromoproteins) are colored proteins and amino acid metabolism products formed in the body.

Endogenous pigments include hemoglobinogenic pigments, which are formed during the breakdown of hemoglobin. Six hemoglobinogenic and related pigments are distinguished: ferritin, hemosiderin, hematins, porphyrins, bilirubin and hematoidin.

Bilirubin is a typical hemoglobinogenic pigment that does not contain iron and is formed as a result of the breakdown of heme. In blood plasma, bilirubin is associated with proteins, primarily albumins. A distinction is made between unconjugated and conjugated (with two molecules of glucuronic acid) bilirubin. Bilirubin is a yellow pigment, its accumulation in tissues in a high concentration (usually at a level of bilirubinemia exceeding 35 µM/l) leads to their jaundice.

Set name	Indicator, method
Direct bilirubin-SPL	Colorimetric, endpoint, bireagent
Total bilirubin-SPL	Colorimetric, endpoint, bireagent
Bilirubin according to Yendrashek-SPL	Determination of total and direct bilirubin by the Jendrashik method
Bilirubin - SpL	Determination of total and direct bilirubin. Colorimetric, endpoint, bireagent
Hemoglobin-SPL	Colorimetric, according to Drabkin, end point, monoreagent, standard
Hemoglobin GC-SPL	Hemoglobin GC-SpLColorimetric, hemichromic, endpoint, monoreagent, standard