Sunday, December 9, 2012

Donating blood can reduce the internal iron element appropriately Reduce and suffer from the cancer risk

Donating blood can reduce the internal iron element appropriately Reduce and suffer from the cancer risk
Donating blood can reduce the internal iron element appropriately Reduce and suffer from the cancer risk
The blood is neglected, spread in a dozen cities of the whole country, need patient and relative whose blood carries on the operation badly or wait earnestly, or require assistance everywhere! And a large amount of scientific research proves, have donated blood and while benefiting others, have improved one's own health status, carry on one's own health " Make the investment " . A lot of people have doubts on donating blood at first, do you have a doubt in donating blood? Please listen to the expert answering questions and explaining the puzzle for you. Donate blood 200 ml - 400 ml each time, " lose " So much blood, will let people sap one's vitality? The expert answers: No, because the human body has very strong self- modulability. Blood in the human body quantity 7-8% of weight probably, if 60 kilograms in weight, then the intersection of blood and the intersection of quantity and about 4200- 4800 ml. 80% of the blood circulates to flow in heart and blood vessel, maintain the normal physical needs of body under the normal state, but other 20% are stored in viscera organs such as the liver, spleen,etc.. Donate blood 200 ml - 400 ml once, only accounts for always oligemic 5%-10%, in addition, it was the vascular blood of periphery that took out, the human body will release the reserve blood on the blood vessel automatically, keeps the invariable blood capacity. After donating blood, when can the organism resume as before? The blood is made up of blood plasma and blood cell, the blood plasma accounts for 55% of blood, it is the mixtures of water, candy, fat, protein, potassium and calcium salt; The blood cell includes the erythrocyte, the leucocyte, blood platelet,etc., make up other 45% of the blood. After donating blood, lost moisture and inorganic salt are permeated tissue fluid through the blood vessel and supplemented within 1-2 hours; Lost plasma protein, is formated with higher speed by the liver and supplemented, can resume in 1-2 days; The blood cell in the blood is counted generally through about 3 weeks, can return to the level before donating blood. Will donate blood to get fat? The expert answers: Get fat, not the inevitable outcome of donating blood, but the result that excessively nourishes. After people donate blood, will cause a series of self-regulation of the organism to react, cause the change of substance metabolism of the organism, the change divides two stages. At first stage, at the beginning of the response, for blood donor, namely just finish offering on the same day of blood, metabolism of organism accelerated, it was catabolism that mainly carried on at this moment, fat,etc. stocking the organism is mobilized out and decomposed, turn into nutriment, go, tackle possible influence led to the fact to the organism to lose blood. Because the blood is supported busy transporting the nutriment at this moment, the blood of the digestive system is supported little, people's appetite is not very vigorous. At second stage, the initial response went over, namely a few days after donating blood, the organism began to be repaired and resumed, the characteristic of substance metabolism, mainly " formate the supersession " at this moment ,Until remedy, donate blood, loss whose blood cell is lost, so the intersection of people and appetite at this moment will become well, the absorbability of the digestive system is relatively strong too. If take a good rest and supply nutrition excessively at this time, eat some high and nutritive tonics blindly, lack appropriate sports again, will cause surplus energy to transform into the fat and pile up under the cover, make the lower fat layer of skin increase thick, thus cause and get fat. Does not need to specially nourish after donating blood the medical expert points out, make sure not to supply nutrition excessively after donating blood, normal diet, every blood composition will return level donate blood, to quickly. But donate blood, has run off so many blood cells, why not need specially nourishing? The reason is, high-quality albumens and irons,etc. that hematopoiesis needs, stock in the organism. The content of the iron is 4-5 grams in the adult human body, 72% among them exist in hemoglobin of the erythrocyte in the blood, participate in the operation of oxygen. Each erythrocyte includes 280 million pieces of hemoglobin molecule, each hemoglobin molecule is made up of 4 sub-units, each sub-unit regards iron atom as the core, each iron atom is combined with a molecule oxygen. It serves to show irons, in the transportation of oxygen, the contribution is very great. Other irons, besides participating in the composition of enzyme, the other one is all regarded as storing compound form, scatter in netted inner covers such as the liver, spleen, bone marrow,etc., once the organism needs, after donating blood, they will be aroused out, participate in the formation of the blood cell at once. If does not donate blood, stocking irons held up in the histoorgan in midium or long terms, will corrode the histoorgan like rust, so from the point of a certain, donate blood, stocking irons has been mobilized out, the favorable organism is healthy! Hematopoiesis also needs high-quality albumen, and in accordance with the present living standard, common people do not lack these basic nutrition, so does not need to nourish sedulously. What advantages does element content of internal iron have to donate blood to reduce appropriately? Medical expert, once blood donor over the 332 and a half person of, with born in the same areaing, and 399 similar not blood donors compare the investigation in age and gender. The result reveals, group's average life span of blood donating is 70.1 years old, higher than 67.5 average years olds of the not blood donating group; Meet the contingency, the survival rate of the blood donating group is 67%, higher than not 40% of the blood donating group. Why can be so? An important reason is: The reduction of blood, will stimulate the bone marrow of blood forming organ after donating blood. Erythrocyte, leucocyte, blood platelet,etc. plant cells from bone marrow and the samely - -Multi-functional stem cell, this kind of cell hyperplasia, splitting up and ripe, turn into various blood cells flowing in the blood vessel. If often donate blood, can make the hematopoietic function vigorous, produce the blood cell with higher speed, the new blood has been produced soon. The normal red blood cell nearly has the life-span for 120 days in the blood plasma. So, even not donated blood, the organism has a lot of old and feeble and causing death blood cells all the time, in addition many new born cells are produced, in order to maintain the equilibrium of metabolism of organism. Scientific research shows, the person's blood cell that often donates blood, than the ones that do not donate blood, comparatively young, the advantage on this kind of quality, can send more oxygen and nutrient component and get to each position of the organism. In addition, young cells,etc. produced newly, have very strong engulfing the plain ability of virus, improve the organism immunity and resistance against diseases, thus can play an anticancer role. If suddenly lose blood in a large amount, the health can be replied in time, reduce the life danger. " international cancer " magazine reports: The iron content in the human body exceeds 10% of the normal value, the probability of suffering from tumour will be improved. Donate blood in right amount, the element content of internal iron is lowered appropriately, thus reduce the emergence of cancer. The whys and wherefores, should be from " include iron enzyme " The important function played in the biochemistry is talked about. Mitochondria is often likened to cells " The motive force factory " One that is with life activity " The power station " . Because of the last material after all carbohydrate, fat and protein catabolism, all here Oxidize and react in mitochondria, produce the carbon dioxide and water and and release a large amount of energy. While this can clear up, energy supersession enzyme - -Iron sulphur albumen (Fe-S) Playing indispensable function, the iron in Fe-S, can take reversible oxidizing reduction reaction. However, if there are too many irons, there is too much activatory oxygen ion, the ones that have participated in cells have still had more than needed after oxidizing and reacting, have been released out from cells as the by product. The name of this by product, call free radical. Free radical, on the structure, there is surplus electron not reciprocal, in order to try to get the stability of the structure, it must transfer this electron to nearby cells, thus damage the cell membrane, upset the permutation of DNA, bring about the canceration in cell. According to " international cancer " magazine, scientists of U.S.A. Minnesota university have analyzed and discovered after women's eating habit definitely: The iron taken in is excessive, will make the risk of suffering from digestive tract cancer increase by 3 times. A research of the healthy and scientific university of Oregon of U.S.A. is announced: The diet takes in iron and body memory and stores too much irons, correlate with risk that breast cancer takes place; The latest research still shows, the iron taken in while eating in any form is excessive, the emergence, development of lung cancer may exert a certain influence. The scientist summarizes and says: "The iron played an important role in bringing out cancer. This should defy the mechanism to contribute through oxidizing. " The latest result of study published reveals in " U.S.A.'s epidemiology magazine ": The iron content interacts higher with extremely low density lipoprotein level higher in the blood, cause and oxidize the pressure, play a key role in morbidity of cancer. Researchers have already exceeded 30 -year-old experimenters to 3278 ages, have followed up a case by regular visits to 10 years, measure iron and lipid level in experimenter's blood, and the situation of observing cancer and having illness coming on. Found finally: The iron content increases, will make cancer have illness coming on dangerously to increase by 66% in the blood; Lipoprotein content of the low density increases, will make cancer have illness coming on dangerously to increase by 54%; If iron content and low density lipoprotein content increase at the same time in the blood, cancer will increase by 168% while having illness coming on dangerously! The expert thinks: "The patients of iron and low density lipoprotein with taller content in those blood, if reduce blood iron and fat of blood level, can lower the morbidity danger of cancer. " And donate blood, can get up to this result. (make and transfer to B10 edition) The modern needs to donate blood even more, should say it is modern's healthy need, because the high-energy diet of the fashion now, let to " take a photograph of the iron " Become inevitable too much. The existence form in the food of iron is a ferroheme iron (also called the porphyrin iron) With the non- ferroheme iron. The ferroheme iron can be absorbed by mucomembranous cells directly, so, are not influenced by various organic acid and mineral acid in meal while absorbing in the body. And ferroheme iron, there is more content in the meat, liver. The absorption of the non- ferroheme iron, is influenced by a lot of factors. The intersection of grain and valley and the intersection of content and high phytate in the vegetables, oxalate, and a large amount of tan sour in the tea, form insoluble molysite with the iron, hinder the absorption of the iron. If is partial to a limited variety of food, it is carnivorous to show favouritism to, does not like the fruits and vegetables, can cause " the diet take in iron and body memory and store irons " Too many. " international cancer " report is hit, talk about " 10% that iron content exceeds the normal value in the human body " When, the morbidity of cerebral thrombosis and myocardium infarction will increase. Why? This is involved in free radical too. The scientist discovers, young women compare with man through a large number of investigations, it is less likely to suffer from apoplexy, heart disease and tumour, but with the increase of age, suffer from just thereupon rising of chance of the above-mentioned disease. In order to canvass the whys and wherefores, relevant experts have observed 30 normal person and 185 coronary heart diseases, hypertension patients, found finally, oxygen free radical increased in coronary heart disease, hypertension patient blood plasma. Oxygen free radical increases, can cause lipid of the erythrocyte to cross, oxidize, damage, deform erythrocyte to destroy with the structure of cell membrane, cause the erythrocyte to be strengthened, lead to the fact the blood flows and changes the sex unusually, thus aggravate the emergence of hypertension, coronary heart disease and complication. It was less why young women suffered from apoplexy, heart disease and tumour, a reason is that " period let some irons be run off " . The emergence of heart cerebrovascular diseases is still involved in blood viscosity, and the scientist uses rheology of blood to study blood quality and relation of donating blood with dynamics of blood, find: Donate blood fixedly in right amount, especially offer tangible compositions such as erythrocyte and blood platelet,etc. only, can make blood viscosity obviously reduce, after accelerating the velocity of flow of blood, the blood flow volume of brain is improved, thus reached and relieved or prevented and glued blood disease high, lightened the hidden danger of arteriosclerosis at the same time. Finnish research group surveyed 2682 men 42-60 years old, offered once at least in two years among them the proportion of the acute myocardial infarction happens within 5 years in person of blooded, it is lower by 86% than the ones that have not donated blood; The research of a cardiovascular disease research group in U.S.A. shows, in 3 years, blood donor (men) The danger of suffering from the cardiovascular disease is only not the blood donors' half; Another investigation finds: The middle aged man donates blood 550 ml every year, suffering from the risk of heart disease will lower by 86%. Donate blood 400 stipulate safe the intersection of value and of our country the intersection of blood donating and law: " donate blood 200 to 400 ml once " . And the blood donating amount to the blood donor of many countries demands to be greater than 400 ml in the world. The expert introduces, 400 ml is safe magnitude of blood transfusion proved by the whole world, this pair of blood donors do not have anything that is endangered, but can reduce the risk of blood transfusion. Blood group different, because A, B, H3 plant one candy that exist chemical constitution of chain different at the erythrocyte of blood group, this is the sign of distinguishing each other between them, after the blood of two kinds of blood group is mixed, find from marking it is not one of own side each other, will emit agglutinin (the antibody) ,Its result is, the group is agglutinate together that the erythrocyte becomes, can't separate again, , " agglutinate response of the erythrocyte " has taken place . So want to be the same as the blood transfusion of blood group. The narrow sense is explained, blood group, refer to the difference among the individuals of antigen of erythrocyte; But already known besides erythrocyte now, in leucocyte, blood platelet and even some plasma protein, have antigenic differences too between the individuals. So, broad blood group should include the difference that the antigen of blood every composition appears among the individuals. What's more, find A, B, the intersection of H3 and kinds of blood group exist getting inferior, for instance, have A1 and inferior type, etc A2 in the A type already now. So during blood transfusion, even it is the same as blood to be, still need to carry on the cross matching experiment. And input into it with a person's blood at the time of blood transfusion, will be much safer soon. (Li Lanling)


|

No comments:

Post a Comment