"The chelated seals are both full of tender jade, and the convex red fat on the shell is fragrant." For many residents in our country, river fresh seafood has always been a delicacy on the table. Of course, they will be packaged and given to their dogs for a taste afterwards. New aquatic products represented by crayfish are increasingly becoming a popular diet due to their low prices, delicious meat and rich nutrition. The crayfish catering market is as prosperous as its bright colors. However, recently there have been reports of many citizens suffering from myolysis due to eating crayfish, which has aroused widespread concern in society. So is it dangerous for dogs to eat it?

What is myolysis? "Rhabdomyolysis" or "myoglobinaemia". In fact, these two diagnoses are actually the same. Because of myolysis, high myoglobin appears in the blood.

Striated muscle refers to skeletal muscle and cardiac muscle, especially skeletal muscle. The most common clinical symptom of rhabdomyolysis is local or generalized muscle soreness. When the kidneys are affected, oliguria will occur, and the urine will appear "cola" in color.

The cause of "rhabdomyolysis" is very complex. The physical causes mainly include extrusion and trauma, exercise and muscle overactivity, electric shock, high fever, etc. Non-physical causes mainly include drugs, poisons, infections, electrolyte disorders, autoimmune diseases, endocrine and genetic metabolic diseases, etc. Statins, organophosphorus pesticides, heavy metals, insect venom, snake venom, and certain bacterial and viral infections can all cause "rhabdomyolysis."

In addition, diseases that cause electrolyte loss may cause rhabdomyolysis, such as hypokalemia, hypophosphatemia, and hyponatremia. Because the muscle cell membrane is destroyed, the contents of the muscle cells are released into the blood, and these contents include a large amount of myoglobin. Since myoglobin needs to be excreted from the body through the kidneys, and myoglobin itself is a "big guy", it can easily block the renal tubules and affect kidney function.

Mild symptoms may produce hemoglobinuria, and severe symptoms may cause acute renal failure. For patients with myoglobinaemia, doctors will use alkaline urine treatment, give patients infusions, and ask them to drink more water to help myoglobin be excreted from the body. Some less severe kidney damage can also be reversed.

Friendly reminder: Dogs have skeletal muscles and cardiac muscle just like humans. Therefore, whether the symptoms of poisoning in humans after eating crayfish are caused by this, sufficient attention needs to be paid. Whether it is due to seasoning, shrimp heads, or other reasons, it is best to Don't feed your dog lobster. Especially the risk of infection with parasites!

Extended reading: Crayfish farming pollution problem

Crayfish are highly adaptable to poor water quality environments. If these crayfish come from unhygienic breeding environments, they may lead to bacterial and heavy metal contamination of the crayfish itself. A large number of cases have suddenly occurred in a short period of time. Could it be that these crayfish carry certain pollutants, which can cause acute poisoning symptoms after being ingested by the human body?

Although crayfish has high nutritional value, it has been criticized for its "survivability" in recent years. Crayfish are more tolerant to the environment than other crustaceans and can tolerate some polluted waters, including organic pollution, heavy metal pollution, etc. Research shows that "rhabdomyolysis" may occur when exposed to organophosphorus pesticides and heavy metals. However, it has not yet been shown that crayfish carry enough contaminants to cause the disease.

Experts from Jiangsu Provincial People's Hospital said: "Now it looks more like a lobster has suffered some kind of pollution, which caused the relevant chemicals to enter the human body and produce toxins, swallowing up human muscles and causing disease." If relevant institutions conduct further testing , proving that crayfish sold on the market carry large doses of certain organophosphorus pesticide residues and heavy metals that can damage muscles, then this hypothesis may be established.

Are you allergic to crayfish?

Some special people with allergies will have abnormal immune responses after being stimulated by drugs. Allergies are related to genetics, so if one parent is allergic, there is a high chance that the child will also be allergic.

Shi Hongqiao, director of the Dermatology Department of Nanjing Hospital of Traditional Chinese Medicine, said that lobster is a high-protein food that can easily cause heterogeneous protein reactions. From the perspective of traditional Chinese medicine, lobster is what we usually call "hair-producing material" and is an allergen for people with allergic constitutions. Many citizens are covered in small red spots on their bodies due to their greed for crayfish, and they are itchy and severe. Also accompanied by gout attacks.

Medically, it is believed that "rhabdomyolysis" is related to certain genetic diseases, such as hereditary carbohydrate metabolism disorders, muscle phosphorylase deficiency, congenital phosphofructokinase deficiency and phosphoglycerate converting enzyme deficiency. Rhabdomyolysis. However, it is still unknown whether it is certain ingredients in crayfish that cause allergic reactions in eaters, or whether it is a genetic problem in the patients themselves.

What is shrimp washing powder?

Some people have suggested that illegal "shrimp washing powder" added by vendors and restaurants in the process of selling or cooking crayfish is the main culprit.

In 2009, there were incidents in Shanghai and other places in my country where unscrupulous traders added "shrimp washing powder" during the processing of crayfish. "Wash the shrimps"Powder" is not a food cleaning agent approved by the state, and this product is only popular in illegal channels. Since crayfish are mostly cultured in lakes and ponds, their living environment often contains a large amount of organic matter, so impurities on the body surface are difficult to be absorbed. Cleaning. In order to give the crayfish a bright appearance, unscrupulous traders and catering operators use "shrimp washing powder" to rinse them.

So, is it possible that these "shrimp washing powder" caused the disease?

Let us first understand the main ingredients of "shrimp washing powder". Professor Zhang Rijun, director of the Feed Biotechnology Laboratory of China Agricultural University, said that different "shrimp washed powder" has different ingredients. Some are alkaline substances, and some are citric acid and sulfite. The latter two ingredients are legal food additives, but there are still many ingredients in "washed shrimp powder" that have not been separated. Using this product will bring harm to consumers' health. Hidden danger. You Jingjing, deputy director of the National Light Industry Food Quality Supervision and Inspection Nanjing Station, once tested a "washed shrimp powder" on the market in Nanjing and determined that its main component was oxalic acid. This chemical is a colorless transparent crystal or white powder at room temperature. It has a special smell and is a strong acid among organic acids. It is mainly used as industrial reducing agent and bleaching agent. Oxalic acid combines with calcium in food to form calcium oxalate, which can easily form kidney stones. If oxalic acid is taken into the body in small or trace amounts for a long time, it will also have an impact on the body.

Because as everyone knows, some foods contain elements such as calcium. When calcium and oxalic acid are combined, calcium oxalate is formed. In humans, calcium oxalate can form kidney stones. If the intake of oxalic acid is relatively large, it will affect the acid-base balance in the body. If it is excessively consumed, in severe cases, it may cause vomiting, bloody stools, or even coma, and eventually lead to death. Medically, it is believed that serum electrolyte levels and acid-base balance are closely related to each other. Acidosis is related to electrolyte loss, and any disease that causes electrolyte loss may cause "rhabdomyolysis." Therefore, the residual oxalic acid in crayfish food may be one of the causes of the disease.