Xanthochromia

Xanthochromia (from the Greek “xantho” - “yellow” and “chroma” - “color”) is a phenomenon in which certain substances in the human or animal body become yellow. This may be due to changes in the structure or composition of cells, tissues or organs, or to the presence of certain chemicals in the blood or other body fluids.

Xanthochromia can be observed in a variety of biological systems, including plants, animals, microbes, and even viruses. For example, with xanthochromia, yellow spots may appear in plant tissues, which are formed as a result of the accumulation of pigments such as anthocyanins or flavonoids.

In animals, xanthochromic changes can be associated with metabolic disorders, for example, with the accumulation of fats or proteins. Also, xanthochrome changes can be observed in various diseases, such as jaundice, cirrhosis of the liver, hepatitis and others.

In addition, xanthochromia can manifest itself in various chemical reactions, for example, when acids or bases interact with other substances.

It is important to note that xanthochromia can have both physiological and pathological significance. For example, in the case of jaundice caused by a violation of bilirubin metabolism in the liver, xanthochromic coloration of the skin and mucous membranes may be observed. However, if xanthochromatic changes are observed in other tissues or organs, this may be a sign of a serious disease.

Thus, xanthochromia is an important diagnostic sign that can help in determining the causes and nature of diseases.

Xanthochrome state is a state of chromatol when it acquires a yellow or brownish tint when exposed to an oxidizing agent (for example, carbon dioxide in the air) both this chromate and water. This is due to the formation of yellow-brown ionic compounds between 3-valent chromium (water splitting catalyst) and adsorbed acids on the surface of the catalyst, which then react with air water, forming hydrides of chromium (III)-(IV) compounds and an orange-colored film. brown color – xantoxant. The reaction is very rapid and occurs naturally in the exhaust gases of internal combustion engines, but there is a tortuous path by which it can be artificially manipulated using chemical compounds.