Sentences with phrase «of haem»

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.

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

Not exact matches

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.

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.

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.

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

«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.»

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