Plastic surgeons use medical leeches to eliminate blood stasis and reduce necrosis in the vascular occlusion area after operation, thus improving the success rate of tissue transplantation and formation of * * *. When replanting or transplanting fingers, toes, flowers and nose with medical leeches, blood can be sucked by medical leeches, which can make veins unobstructed and greatly improve the success rate of surgery.
Question 2: What's the use of leeches?
Leech, also called leech, has high medicinal value. After drying in the sun, it is all used as medicine, containing hirudin and rich protein, and also has the effects of promoting blood circulation, removing blood stasis, dredging channels and activating collaterals. Commonly used for amenorrhea, blood stasis, abdominal pain, traumatic injury and other symptoms.
Locusts mainly contain protein. It also contains many trace elements such as iron, manganese and zinc. The saliva of fresh leeches contains an anticoagulant called hirudin, which belongs to peptides. Because there are no tryptophan and arginine in its molecular composition, it has anticoagulant effect. But hirudin has been destroyed in dried medicinal materials. Leech saliva also secretes histamine-like substances, heparin and antithrombin, which has synergistic effect with hirudin.
1. Effect on blood
Hirudin can prevent thrombin from acting on fibrin and hinder blood coagulation. Hirudin will not be destroyed by heat or ethanol. Leeches can also secrete a histamine-like substance, which can dilate capillaries and increase bleeding. The alcohol extract of leech has stronger inhibitory effect on blood coagulation than tabanus and peach kernel, and the alcohol preparation of leech has stronger effect than water preparation. 20mg hirudin can prevent 100g human blood coagulation.
Leech water extract has obvious inhibitory effect on ADP-induced platelet aggregation in rats and normal people, and has antithrombotic effect.
The results showed that leech had a strong fibrinolytic effect in vitro, and its activity was significantly higher than that of salvia miltiorrhiza and rhubarb. It also has fibrinolytic activity in vivo, which can significantly shorten the euglobulin lysis time (ELT) of rabbits. So leeches can activate the chemical fiber dissolving system and dissolve thrombus. It has also been reported that hirudin can obviously inhibit experimental thrombosis and dissolve experimental venous thrombosis caused by thrombin.
Leech water extract can reduce the specific viscosity of whole blood and plasma in rats. Shorten erythrocyte electrophoresis time. Clinical research shows that leech can improve the concentration, viscosity and aggregation of patients with ischemic cerebrovascular disease caused by abnormal hemorheology.
2. Effects on cardiovascular system
It is reported that leeches can increase myocardial nutrient blood flow to some extent; It has protective effect on tissue ischemia and hypoxia. Hirudin can antagonize the coronary artery spasm caused by pituitrin in rabbits and has the therapeutic effect of inhibiting myocardial ischemia. Leech can obviously eliminate atherosclerotic plaque, make collagen fiber proliferate in plaque and reduce cholesterol crystallization. It is suggested that leeches have potential application value in the prevention and treatment of atherosclerosis.
Leech can dilate capillaries, improve microcirculation and increase renal blood flow. Its effect on improving microcirculation is similar to heparin, but its action time is short. Experiments show that leech can dilate peripheral blood vessels, increase blood flow and reduce vascular resistance, which is similar to papaverine hydrochloride.
3. Effect on pregnancy
Experiments show that leech can terminate the pregnancy of mice at all stages (including implantation and early, middle and late pregnancy). Different routes of administration have a good termination effect on early pregnancy. If exogenous progesterone and leech are injected at the same time, premature delivery can be prevented. Leech has inhibitory effect on decidual lesions.
4. Other functions
Leech can obviously reduce cholesterol and triglyceride in experimental hyperlipidemia rabbits.
Hirudin can inhibit the growth of tumor cells and mouse liver cancer. Because leech has high anticoagulant effect, it is beneficial for anticancer drugs and immunocompetent cells to infiltrate into cancer tissues and kill cancer cells.
Question 3: Why do leeches have medical uses? Leech, also known as leech. It is best at sucking human and animal blood. There is a sucker in front of the leech and a sucker in the back. When it sucks blood, the sucker will form a vacuum state as soon as it touches the skin, so it will tightly suck the human skin. Doctors put leeches behind the ears of patients with hypertension, cerebrovascular circulation and visual organ disorders for treatment; When suffering from cerebral hemorrhage, let leeches suck the blood from the back of the head and layers of bones. This can also reduce congestion in distant organs. Together with leech secretion-hirudin, it can prevent blood vessels from contracting. Its salivary gland secretion also contains substances that dilate capillaries. Therefore, using leeches to treat diseases can serve multiple purposes. Therefore, the General Administration of Drugs of the former Soviet Union set up an enterprise to breed leeches, raising nearly one million leeches every year to meet the needs of modern medicine.
The content of hirudin in leeches is very small, but it has a miraculous effect. Just a floating microgram will prevent blood from clotting. Leech can continue to suck human blood after biting human body, because hirudin is released in leech's mouth. It has the effects of relieving arterial arm spasm, reducing blood viscosity, dilating blood vessels, increasing blood circulation and promoting exudate absorption.
Question 4: What are the benefits of using leeches to suck blood to treat dangerous complications after human surgery?
It is reported that many parts of the human body will accumulate too much blood after the connection operation, which will lead to soft tissue necrosis and even life-threatening if left untreated. This postoperative complication is called "venous congestion", and leech is the best treatment for this disease. In addition to absorbing blood, it can also secrete chemicals to prevent blood clots from appearing at the wound and make the blood unimpeded.
Brief introduction of leech
Alias: leech, ephedra, ephedra, soft-shelled turtle, red leech, meat drill, water hemp patch.
Medicinal parts: all
Origin: It is produced all over China.
Harvest: Fishing in summer and autumn.
Processing: blanching in boiling water, sun drying or low temperature drying.
Leech, commonly known as leech, grows and breeds in inland freshwater areas. It is a traditional special medicinal aquatic animal in China. After processing, its dried product is used as medicine in traditional Chinese medicine, which has the effects of treating apoplexy, hypertension, blood stasis, amenorrhea and traumatic injury.
Question 5: What is the medical value of leeches, also known as leeches? It has been recorded in Shennong Herbal Classic, an ancient book in China, and has high medicinal value. After all the medicines are dried, they contain hirudin and protein, and have the effects of promoting blood circulation, removing blood stasis, dredging channels and activating collaterals. Clinically, it is mostly used for amenorrhea, abdominal pain due to blood stasis, traumatic injury and blood stasis pain. In recent years, live leeches have been used to absorb postoperative blood stasis to make blood vessels unblocked; Leech is also used to treat tumors together with other blood-activating antidotes. An injection made of live leech and pure honey is used for conjunctival injection to treat swelling senile cataract in the early stage of corneal macula. More than 20 kinds of drugs have been developed, which is one of the most popular Chinese herbal medicines.
Leech, commonly known as leech, is a dried body of leech, leech and leech. Taxonomically, leeches belong to the leech class of Annelida, and the tooth toad is of medicinal value, which is divided into leeches and leeches. Leech has a long history of being used as medicine, and its pharmacological characteristics have been recorded as early as Shennong Herbal Classic. Chinese medicine is mainly made of leech worms after drying in the sun, which is flat in nature, salty and bitter in taste and slightly toxic. It has the function of removing blood stasis and dredging channels, and is mainly used for treating blood stasis amenorrhea and abdominal mass accumulation.
Question 6: Why do leeches have 32 brains? What's the use? Strictly speaking, leeches have only one brain consisting of 32 nerve centers. Behind the sucker, there are often many small eye points. Leech has three forehead bones in its mouth and dense teeth in its jaw, which can bite off the host tissue.
Question 7: What exactly are leeches used for? suck blood
Question 8: What leeches can be dried, mashed, encapsulated and taken orally in leech pharmacy? According to Compendium of Materia Medica, leeches are dried and used as medicine. Flat in nature, salty and bitter in taste, slightly toxic. Function to break blood stasis and dredge channels, mainly used for blood stasis amenorrhea and stasis.
Question 9: What is the main function of leeches? Crawling maggots and bloodsucking leeches are disgusting, aren't they? But these seemingly annoying things can be used to treat diseases. Biotherapy used to be very popular. Later, due to the progress of science and technology, these indigenous methods were gradually abandoned. With the development of science and technology, experts began to pay attention to biotherapy, and related research was also released. In Hollywood movie stories, maggots become real heroes, which is a well-known Hollywood movie story. One snowstorm day, a plane crashed on a barren hillside, and the injured pilot was in great pain. The situation was very critical, but the expected rescue saved the pilot from death-the doctor cut the tattered cotton cloth from his injured part. Close-up: The pilot was torn a large piece of meat, revealing the bones, which were crowded with thousands of twisted maggots! But don't say these little things are disgusting. In fact, these maggots are the real heroes. As the doctor later explained, these maggots ate gangrene and saved the pilot's leg. Although it seems incompatible with the science of 2 1 century, maggot therapy has made a comeback. In fact, Hollywood movies are only half right. Centuries ago, maggots were used to treat wound infections. From the Battle of Waterloo to the Battle of Somy, and during the American Civil War, surgeons explored and used the therapeutic effect of maggots on the battlefield. Because antibiotics were widely used in the early 20th century, the method of treating wounds with maggots was abandoned. Today, although it seems incompatible with the science of 2 1 century, maggot therapy is making a comeback. There must be a reason to treat maggots. Some fragmentary evidence and small-scale experiments show that dressing with sterilized maggots is more effective than traditional treatment methods, especially in treating rotten wounds. Now, British scientists have launched the largest clinical research on maggot therapy, aiming to find out how humans can benefit from this therapy. This is a serious topic. The study will last for three years, involving about 600 patients and costing 654.38 million pounds. It will be led by the Department of Health Sciences of York University, with the participation of health trusts in northern, central and northern England. The goal of this study is to reduce the cost of treating leg rot up to 600 million pounds a year in the British national insurance system and improve the quality of life of thousands of patients in weak, ugly and painful conditions. Paul, who led the research? Dr Reynolds said: "maggot therapy has been applied, but we should actually test the efficacy of this therapy in cleaning and healing wounds, which is also a question about the quality of life of patients." Compared with other traditional treatment methods, will it make the wound heal faster? For example, does this mean that patients can reduce the number of visits to general practitioners? These wounds will heal quickly, and maggot therapy seems to be very effective. "Americans are convinced of the effect of this therapy. Phyllis, 8 1 year old? Hum agrees with this view because she has personal experience. Until she used a "tea bag" with maggots, there was hardly any good way to cure her rotten leg injury before. She said: "My wound is very painful, but after using a tea bag with maggots, I slept well the first night. This is the best night I have slept in months. "After the second treatment, the wound was thoroughly cleaned. The maggots crawled out of the wound and ate chubby and full. " Another person who believes in this method is Ronald, an associate professor of medicine and pathology at the University of California. Dr. Sherman, who advocated the reintroduction of maggot therapy in modern clinical practice. He said: "The main advantage of this therapy lies in its curative effect. Several studies show that using maggots to treat wounds cleans faster than traditional methods, and wounds grow healthy "granular" tissues faster. In addition, this method is safe, low cost and easy to use. " Americans are so convinced of the effect of this treatment that this humble maggot became the first living animal approved for medical treatment by the US Food and Drug Administration last year. Besides maggots, leeches are most suitable for doctors, and the second mollusk is also quickly used for medical treatment. It's leeches. Doctors found that seriously injured blood vessels, skin and even limbs, if treated with bloodsucking leeches first, will have a greater chance of successful healing. They praised the role of the little leech, which did the best job for the doctor. British biopharmaceutical company is a company that provides leech treatment services, and every ... >; & gt