| 单词 | haem |
| 例句 | These drugs bind to the released haem in the digestive vacuole and prevent the compound’s detoxification by the parasite — in effect, poisoning the parasite with its own metabolic debris4. Malaria parasites fine-tune mutations to resist drugs 2019-11-26T05:00:00Z One protein degrades haem, a component of the blood protein haemoglobin. Only vaccines can eradicate parasitic worms 2019-11-26T05:00:00Z There are several types of porphyria, but each is caused by the body being unable to produce enough of a substance called haem. 'New class' of medicine reverses disease 2019-04-13T04:00:00Z In these bacteria, tens of haem molecules bound to three types of protein establish a path for electrons to move across the periplasm and the outer lipid membrane8. The electrifying energy of gut microbes 2018-09-11T04:00:00Z These other suspects include haem iron – a substance that is abundant in all red meat, processed or not – and heterocyclic amines: chemicals that form in meat during cooking. Yes, bacon really is killing us 2018-03-01T05:00:00Z The team shifted its focus, and now produces a haem protein in the lab using genetically engineered yeast. Sustainability: A meaty issue : Nature : Nature Research 2017-04-25T04:00:00Z Haem is potentially toxic, and antibodies against the degradation protein reduce the worm’s ability to eliminate haem from its blood meals. Only vaccines can eradicate parasitic worms 2019-11-26T05:00:00Z In acute intermittent porphyria it lowers the levels of an enzyme involved in haem production and prevents the build-up of toxic proteins. 'New class' of medicine reverses disease 2019-04-13T04:00:00Z When P. falciparum invades red blood cells and feeds on their contents, it breaks down haemoglobin into amino acids and haem, a chemical compound that contains iron. Quick test for malaria shows promise 2014-08-30T04:00:00Z It’s not quite clear whether the exporters are taking away the haem or some other toxic product, but they are vital for preventing the toxic effects of haemoglobin within the bacteria. Pathogens that feed off human blood 2012-05-05T19:15:00.220Z The meatless Impossible Burger and some of its ingredients: potato, haem protein, soya bean, coconut and wheat. Sustainability: A meaty issue : Nature : Nature Research 2017-04-25T04:00:00Z Vast quantities of soya bean plants would be needed to generate enough haem for the burgers. Sustainability: A meaty issue : Nature : Nature Research 2017-04-25T04:00:00Z “One of the first important discoveries was that it was the haem protein that drove the flavour of meat,” says Davis. Sustainability: A meaty issue : Nature : Nature Research 2017-04-25T04:00:00Z Free haem is toxic, so the parasite quickly converts it into an insoluble crystal known as haemozoin. Quick test for malaria shows promise 2014-08-30T04:00:00Z Finding a stable, non-animal source of haem was the team's next challenge. Sustainability: A meaty issue : Nature : Nature Research 2017-04-25T04:00:00Z “After a lot of work, we realized there was no environmentally sustainable way to harvest the root nodules and extract the haem protein,” says Davis. Sustainability: A meaty issue : Nature : Nature Research 2017-04-25T04:00:00Z The plant-based ingredients they settled on were wheat and potato proteins, natural flavourings and coconut oil, with the key addition of haem — the iron-containing group that is abundant in animal tissue as haemoglobin or myoglobin. Sustainability: A meaty issue : Nature : Nature Research 2017-04-25T04:00:00Z |
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