Ví dụ về việc sử dụng Heme trong Tiếng anh và bản dịch của chúng sang Tiếng việt
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Although heme iron.
At least those containing heme.
Heme and Non-heme Iron.
Here Fe()-E represents the iron center of the heme group attached to the enzyme.
Heme iron is found in meat and fish and is easily absorbed by the body.
It contains four iron-containing heme groups that allow the enzyme to react with the hydrogen peroxide.
Many bacteria require iron to replicate,and iron is carried on heme, a component of the red blood cell.
Non-heme iron from plant foods is often poorly absorbed,while absorption of heme iron is very easy.
Iron: 12% of the RDA(this is high-quality heme iron, which is absorbed much better than iron from plants).
Type II aromatase inhibitors such as anastrozole and letrozole, by contrast,are not steroids and work by interfering with the aromatase's heme.
However, some biological structures in animals, such as heme groups that help to carry oxygen in the blood, are colored as a result of their structure.
According to the national institutes of HODS(Health Office of Dietary Supplements), although the types of natural sweeteners and vegetation have more iron,but this type of iron is not easily absorbed as heme iron.
Keep in mind that your body absorbs the iron from animal sources(heme iron) much more readily than the iron from non-animal sources(non-heme iron).
The iron atom in heme binds to the 4 nitrogen atoms in the centre of the porphyrin ring, but this leaves two free bonding sites for the iron, one on either side of the heme plane.
Catalase is a tetramer of four polypeptide chains, each over 500 amino acids long.[7]It contains four iron-containing heme groups that allow the enzyme to react with the hydrogen peroxide.
As stated earlier, plants contain non-heme iron whichneeds to be supplemented with other sources of heme iron like meat, fish and eggs to facilitate their absorption.
In this ballad, an elf threatens to abduct a young woman to be his lover unless she can perform an impossible task("For thoumust shape a sark to me/ Without any cut or heme, quoth he");
It has been proposed that the high amounts of heme iron found in red meat might be problematic because heme iron increases oxidative stress in the body, which in turn promotes inflammation(9).
Fe(IV)-E(.+) is a mesomeric form of Fe(V)-E, meaning the iron is not completely oxidized to+V,but receives some stabilising electron density from the heme ligand, which is then shown as a radical cation(.+).
If the test result is negative,it is reasonable proof that heme is absent in the sample, however, the test will give a false positive result in the presence of any oxidizing agent in the sample.
The Impossible Burger is made with similar basic ingredients, but it gets its protein largely from soy and potato,and it uses an iron-containing compound from soy called heme to enhance the burger's meaty flavor.
Thus, coffee and caffeinated drinks are more likely to inhibit the absorption of non-heme iron from plant-based foods buthave very little effect on heme iron from animal foods.
The scientists found that heme, a chemical structure found in hemoglobin, is key to understanding why AML persists in the system, and that it may also provide a new path to treating this type of leukemia.
In these two examples, a metal is complexed at the center of a tetrapyrrole macrocycle ring:the metal being iron in the heme group(iron in a porphyrin ring) of hemoglobin, or magnesium complexed in a chlorin-type ring in the case of chlorophyll.
I think that removing heme iron from meat would make for a colon-safer product," says Graham Colditz, a cancer researcher at Washington University in St Louis who has no association with the groups producing lab meat.
Elevated levels of methemoglobin in the blood are caused when the mechanisms that defend against oxidative stress within the red blood cell are overwhelmed andthe oxygen carrying ferrous ion(Fe2+) of the heme group of the hemoglobin molecule is oxidized to the ferric state(Fe3+).
Heme or haem(from Greek αἷμα haima meaning blood) is a cofactor consisting of an Fe2+(ferrous) ion contained in the centre of a large heterocyclic organic ring called a porphyrin, made up of four pyrrolic groups joined together by methine bridges.
In the future, Dr. Schuetz and his colleagues aim to gain an even more detailed understanding of the role of heme in AML, investigating whether or not other cellular roles of heme might be significant in the development of leukemia.
Alpha-tocopherol acetate(vitamin E) is a drug that has an antioxidant effect, is involved in cell proliferation,protein and heme biosynthesis, tissue respiration and other important processes of tissue metabolism, prevents increased capillary fragility and permeability of erythrocytes.
While the findings are consistent with other Western studies that have shown that the increased intake of red meat and increase in heme iron content of diet could increase the risk of diabetes, this study demonstrated the additional risk of red meat attributable to other possible chemicals, other than its heme iron content.