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Hemoglobin is the complex protein containing atoms of iron which is capable to contact oxygen that provides its movement and supply of fabrics with oxygen. Hemoglobin contains in erythrocytes, but at some organisms, for example invertebrates, can be present at fabrics and a blood plasma. Due to communication of hemoglobin with iron blood received such color. Level of hemoglobin is one of the most important indicators studied at blood test.
Transfer of respiratory gases is the main function of hemoglobin. Compound of oxygen and hemoglobin happens in capillaries of lungs then the flow of erythrocytes with molecules of hemoglobin delivers these connections to bodies and fabrics, especially where the content of oxygen is lower than normal. Here bonds of hemoglobin and oxygen collapse therefore the last is released.
At considerable hit of this protein in a blood plasma from erythrocytes, it becomes very toxic. It can result an intravascular hemolysis, anemias, hemotransfusion, hemorrhagic shock and other morbid conditions. Its toxicity is shown in deterioration in supply of fabrics with oxygen, an organism overload by bilirubin, iron and other products of its disintegration, obstruction of renal tubules, in a possibility of development of a renal failure. Due to such toxicity of this protein in an organism the whole system for its neutralization is adjusted.
Hemoglobin is one of proteins which causative agents of malaria are powered. In some areas where this disease is eurysynusic, cases of a hereditary mutation of hemoglobin which complicate penetration of malarial plasmodiums into erythrocytes very often meet. But except such relative advantage, this deviation the difficulty of transportation of oxygen, high risk of development of anemia, a fast razrushayemost of erythrocytes, etc. has very powerful shortcomings, for example.
Normal indicators of a hemoglobin content for men and women are various. For men this indicator higher and makes 130 — 170 g/l, at women — 120 — 150 g/l, level for children is subject to considerable fluctuations and depends on age of the child. For example, for children at the first birthdays hemoglobin can be to 220 g/l, then gradually falls, and to age of majority reaches adult level.
Low hemoglobin can be a symptom of many diseases, pathologies and deviations. Fast fatigue and constant weakness, pallor, frequent numbness of extremities, dizzinesses, quickly freeze legs and hands – perhaps the level of this substance at you are lower norm. Marrow diseases, a hyponutrient, blood losses are also followed by insufficient hemoglobin.
Quite recently doctors seriously started talking about anemia – reduction of number of erythrocytes and level of hemoglobin in blood. According to research, more than a half of the Russian women have anemia, and 10% are necessary serious treatment. At the same time the majority do not even guess the illness. Women are subject to this pathology more. Than men therefore prevention by means of healthy nutrition is very important for them.
For some people the low level of hemoglobin is almost chronic, maintenance of necessary level the correct diet and reception of vitamins is very important for them. As well as any other disease, anemia it is easier to warn, than to treat, and the healthy nutrition can become the first step. Meat, a meat offal, buckwheat, bean, mushrooms, bilberry, chocolate – these products contain a lot of iron and will be very useful. Cereals, coffee and tea lower hemoglobin, and vitamin C on the contrary – improves its absorption, well and of course, it is worth to remember about vitamins C the content of iron.
Except anemia, the lack of hemoglobin can provoke development and other, not less dangerous disease – an anoxemia – reduction of pressure of oxygen in an organism.
Not less dangerously, than the lowered contents, there can be a raised hemoglobin that is connected with increase in the size or quantity of erythrocytes, heart troubles, fibrosis and so forth. Such deviation received the name of a polikizemiya.