Today's living standards have improved, and people are paying attention to their own quality of life. Young parents are very concerned about providing the baby with enough high-protein and high-calorie foods such as chicken, fish, milk, meat, and soy products. In contrast, vegetables did not cause parents enough attention. Nearly half of the 2 to 3 year-old babies around us are not interested in vegetables; among them, 15% of the babies basically do not eat any vegetables. Some parents think that “anyway, he loves fruit, loves fruit juices, vitamins are not lacking.†Others think “the baby's physique is strong and there is no constipation.†“Perhaps eating vegetables is not as important as we think.†Meat foods are rich in many nutrients such as protein, fat, inorganic salts, and trace elements, but they lack vitamins, especially vitamin C and cellulose. In order to obtain these two nutrients, people must eat vegetables every day. Vitamin C cannot be stored in the body and must be taken from the diet daily. Therefore, green leafy vegetables are indispensable when planning a day's menu. With regard to the role of cellulose in the human body, scientific research has further proved that it can help digestion. Chewing with more fiber, can promote the secretion of a large amount of digestive juice, especially to promote the secretion of pancreatic juice, is conducive to the digestion and absorption of fat and oil foods. Some children have poor appetite, too often eat too little with vegetables, and the lack of cellulose in the body. Cellulose also stimulates intestinal peristalsis, keeping the stool open and avoiding constipation. In this way, the residence time of the feces in the intestine can be reduced, thereby reducing the irritation of toxic substances. Cellulose can also reduce the deposition of cholesterol in the body, thus preventing arteriosclerosis from occurring in adults. In order to ensure that there is a certain amount of vitamin C and cellulose in the food, there must be a certain amount of vegetables per day in the diet of young children. The benefits of eating more vegetables 1. It is an important source of essential vitamins and minerals. Only vegetables and fruits contain carotene of vitamin C and vitamin A, but also vitamins B1, B2, niacin and vitamin P. Vitamin C can prevent scurvy, especially green leafy vegetables; vitamin A can maintain vision and prevent dry eye and night blindness. 2. Vegetables contain calcium, iron, copper and other minerals, of which calcium is the main material of the baby's bones and teeth development, but also to prevent rickets; iron and copper can promote the synthesis of hemoglobin, stimulate red blood cell development, prevent baby loss of appetite, anemia , Promote growth and development; minerals can make vegetables into alkaline foods, and grains and meat and other acidic foods and neutralize, with the role of adjusting body fluids acid-base balance. 3. Vegetables are rich in cellulose, can stimulate the secretion of gastric juice and intestinal peristalsis, increase the contact area of ​​food and digestive juice, help the body to digest and absorb food, promote the excretion of metabolic waste, and prevent constipation. 4. Some vegetables contain volatile aromatic oils that have a special taste, such as ginger, onions, garlic and other spicy aromas. This unique aroma has the effect of stimulating appetite and can prevent certain diseases. Six strokes for children to eat more vegetables In order not to eat vegetables, children always think of various excuses. How to overcome children's "fear" of vegetables, you can try the following methods: 1. Make vegetables a healthy salad. Ginger, soy sauce, rice vinegar, cooking wine, and sesame oil are mixed in the vegetables and you can make a healthy vegetable salad. 2. Decorate your dishes in green. At lunch, you don't need to eat only a pot of fried celery. You can change the way you eat vegetables. Add some tomato slices and lettuce in the middle of the sandwich. This will ensure enough vegetable intake. 3, try new flavors. Many children do not like to eat vegetables because they are tired of the taste of vegetables that they often eat. Try fresh vegetables that have just been listed. 4. Make vegetables colorful. Choosing vegetables of different colors can maximize the intake of nutrients. 5, learn to match. Adding vegetables to other dishes can also make delicious foods. Some of the combinations can help the body absorb nutrients better. For example, fry vegetables together with sliced ​​lean meat and other green foods. 6, looking for seasonal vegetables. Fresh seasonal vegetables are not only delicious but also healthy. Spring asparagus and radish are quite nutritious; summer is a season rich in corn and tomatoes; in the fall, you can choose eggplant and pumpkin; and lettuce and other green vegetables are ripe in the winter. To enhance your baby's dietary interest in vegetables, mothers can use the following methods to make vegetables. 1) When the vegetables are chopped and smashed, the dishes can be made into meat and stuffed, made into dumplings and buns, and can be made into vegetable dumplings or pies to encourage the baby to eat. 2) Raw and cooked with: Some vegetables can be eaten raw, raw can avoid the destruction or loss of vitamins. In addition, summer can be mixed with some cold dishes add a little vinegar, vinegar can not only protect the vitamin C in the dish is not destroyed, but also dissolve cellulose, but also seasoning, stimulate appetite, and help digestion. 3) The combination of meat and vegetables, complement each other, can increase the baby's nutrition and benefit the baby's health. If the baby does not like to eat carrots, the mother can make pork liver carrot soup, making method is: the liver and carrots were washed and cut into pieces. With appropriate amount of water, first put carrots, cook for 20 to 30 minutes, then add the liver, cook for a moment and add oil and salt to taste. This can also prevent anemia and vitamin A deficiency. Medicine Peptides and protein drugs are emerging. There are now 35 important therapeutics on the market, and the development of biotechnology and biopharmaceutical companies is becoming increasingly global. Biotechnology drug research focuses on the application of DNA recombinant technology to develop peptides, proteins, enzymes, hormones, vaccines, cell growth factors and monoclonal antibodies that can be used in clinical applications. According to Parexl's Pharmaceutical R&D Statistical Source Book, there are currently 723 biotech drugs under FDA review (including phase â…° to iii clinical and FDA evaluation), 700 drugs are in early stage (research and preclinical). More than 200 additional drugs are in the final stage of approval (Phase iii clinical and FDA evaluation). The basic dosage form of biotech drugs is lyophilized. Although the efficacy of conventional preparations has long been clinically proven, they need to be injected frequently for a long time due to their short half-life, which is difficult to accept from the perspective of psychological and economic burden on patients. To this end, scholars around the world mainly from two aspects to study and develop convenient and reasonable drug delivery approaches and new preparations: (1) embedment agent and sustained-release injection. â‘¡ Non-injectable dosage forms, such as respiratory inhalation, rectal administration, nasal administration, oral administration and transdermal administration, etc. Injectable preparations of sustained-release biotechnological drugs are new dosage forms with promising applications. Some of them, such as microsphere injections of luteinizing hormone releasing hormone (LHRH) analogues which can be sustained-release for 1 to 3 months, have been on the market. This paper focuses on this kind of preparations.Main types of peptides and protein drug sustained-release preparations The research and development of peptides and protein drug sustained-release preparations can be divided into two types, namely, embedment agent and microsphere injection, from the perspective of development process and dosage form. The shape of the implant is a hollow micro-fine rod, one end is closed, the other end is open, and the rod material is non-biodegradable polymer such as ptfe. The lumen was filled with a mixture of drugs and silica gel (silastic, polydimethylsiloxane). The implant is embedded under the skin, and the drug is released slowly through the opening of silica gel matrix. The American Physicians' Handbook (PDR) contains a product called Norplant? Levo-18 ethyl norethinnes, used in family planning. The preparation, each with a diameter of 2.4 mm and a length of 34 mm, is surgically implanted in the inner side of the patient's upper arm with 6 thin rods. The drug can be released in the body in zero-grade mode for up to 5 years, and then removed by surgery after release,1.1.2 Micro-osmotic pump embedding agent The United States Alza company in the 1970s developed an embedding agent shaped like a capsule, which is embedded in the skin or other parts. The body fluid can penetrate through the shell, dissolve the interlayer electrolytic layer, make the volume expansion of the interlayer pressure to the plastic inner cavity, and promote the drug solution from the opening of the fixed speed release. Many biomolecular drugs, such as insulin, heparin and nerve growth factor, have been reported as model drugs in vivo and in vitro. 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