It is a leech. Leeches burrow into people's skin and suck blood.
Lives in paddy fields and swamps. Sucks blood from humans and animals. Quick action, can make wave swimming and inchworm type moving. Spring is active, June to October for the egg-laying period, winter hibernation. Regenerative force is very strong, such as its cut off feeding, can be broken by the part of the new body regeneration. There are distributions all over the country.
Hirudin can prevent the action of thrombin on fibrin, hindering blood coagulation. Hirudin is not damaged by heat or ethanol. Hirudin is not destroyed by heat or ethanol. Hirudin can also secrete a histamine-like substance, which can dilate capillaries and increase bleeding. The effect of the alcoholic extract of hirudin in inhibiting blood coagulation is stronger than that of gadfly, worm, and peach kernel, and the effect of the alcoholic preparation of hirudin is stronger than that of the aqueous preparation.
Extended information:
Leeches are invertebrate mollusks with no skeletal structure, and the whole body is available.
The main components of leeches are proteins, peptides, trace elements and fatty acid elements.
1, protein: the content of amino acids in the dried leech powder is as high as 62%, which is 2.7 times of the muscle protein content of 23.3%; meanwhile, among these 17 amino acids, the content of glutamic acid, aspartic acid, lysine and leucine is higher, which play a very important role in the health care of leeches.
Of the 17 amino acids contained in leeches, 7 of them are essential amino acids, with a content of 1535mg/100g dry weight, accounting for 72% of the total amount of all amino acids.
2, polypeptide: blood-sucking leeches contain low molecular polypeptide composed of several amino acids, which is the main active ingredient for blood-sucking leeches to exert medicinal and health care functions.
3, trace elements: Phytolacca leeches contain calcium, chromium, copper, iron, magnesium, manganese, vanadium, zinc 8 kinds of elements, of which vanadium, manganese, copper, iron, zinc elements are essential trace elements in the human body.
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