Sentences with word «haem»

For instance, to improve drug activation at ring stage, we can explore enhancing the level of haem biosynthesis in the parasite.

If your baby is following a vegetarian diet, make sure that you serve him plenty of iron rich foods, along with foods rich in vitamin C — this converts non haem iron into a form more easily used by the body.

Some chemists, including Albert Eschenmoser at the University of Zurich, think that molecules based on the corrin ring system of vitamin B12 could be older in evolutionary terms than the porphyrin - based ring systems in haem and chlorophyll.

Haem iron is absorbed more easily by the body than non haem.

The drug activation level was found to be much lower in ring stage parasites, given that artemisinin activation requires haem, which is of much lower abundance and is biosynthesised by the parasite.

Vitamin B12 is the most complicated of an essential group of bio-pigments which includes haem, the red pigment in haemoglobin, and chlorophyll, the green pigment in plants.

These foods contain a pigment called haem, which studies have shown could damage the cells in the bowel.

By understanding that haemoglobin digestion releases huge amount of haem, which brings about the effective killing mechanism in the later stages, we can also consider prolonging the treatment time to ensure that the drug can effectively kill the parasite through multiple cycles.»

«Plant foods also contain non-haem iron, which some experts believe may be a healthier form of iron than haem iron, which is found in meat.»

For example, the vinyl groups in haem, among other things, help to stabilise the iron (II) oxidation state by acting as a repository for the iron's electrons.

The study also showed that the main activator of artemisinin is haem, a specific iron - containing compound, either biosynthesised by the parasite at its early developmental ring stage, or derived from haemoglobin digestion in the later stages.

This releases large amounts of haem, and the drug is thus able to specifically respond to parasite - infected cells and effectively attack the disease - causing parasites.

Others speculated that, like the malaria drug chloroquine, artemisinin frustrates the removal of haem, a toxic byproduct formed during the parasite's consumption of human hemoglobin.

Four months is about the lifetime of a red blood cell in the body, so he concluded that glycine was being incorporated into the haem during its biosynthesis.

In plants and animals, it leads to chlorophyll and haem.

In animals the path from here onwards involves a series of steps eventually leading to haem, while in plants it leads to chlorophyll.

They include the porphyrin - based ring systems of haem, which is essential to the biochemistry of molecular oxygen; chlorophyll and bacteriochlorophyll, which are crucial in trapping solar energy during photosynthesis; and sirohaem, a substance in organisms such as Escherichia coli which is responsible for converting sulphite to sulphide and nitrite to ammonia.

During this period he took regular blood samples, extracted the haem and measured its enrichment with nitrogen - 15 using mass spectroscopy.

Chemists now know that glycine provides the four nitrogen atoms found in haem's porphyrin rings.

And in 2004, she added to these the effects of a haem - containing protein that detects changes in oxygen concentrations and directs worms to group together when surrounding oxygen concentrations are high.

There are two types of dietary iron: haem iron (found in animal foods) and non-haem iron (found in plant foods).