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Communication, clearly essential to humans, is also essential to cells, their elemental building blocks. In order to preserve organic cohesion, cells need to communicate with their environment, but they also need to ensure adequate communication between their various compartments.
These forms of intracellular exchange are essential and require the setting up of actual networks. Membrane transport tubes were evidenced some years ago, but their formation has up till now remained a mystery.
Patients with type 2 diabetes are at lower risk of death and hospital admission for heart attack than patients with established coronary heart disease, finds a study in this week’s BMJ.
These results challenge the widely held view that patients with diabetes have as high a risk of cardiovascular events and death as non-diabetic patients who have had a heart attack, and therefore have important implications for clinical practice.
Researchers in Dundee carried out two studies involvin
Erasing molecular memory of parents could shed light on clones.
Cells naturally wipe out the mark of their parents in 24 hours, say cloning experts. Exactly how may begin to explain the way that animal clones and stem cells are reprogrammed. Not all genes are born equal. In mammals, some genes are imprinted – cells switch on only the copy inherited from mum or dad, not both. This sex stamp must be erased and rewritten in sperm and egg cells, however, so they are correctly labelled as
A European team of researchers has demonstrated that sediment is transported to the deep sea via canyons in the seabed. The sediment accumulates in the head of the submarine canyons. At the end of the canyons, mud avalanches disperse into the deep sea. Scientists from the Netherlands Institute for Sea Research (NIOZ) presented their findings at an international congress held from 7 to 10 April 2002.
With bottom landers, onboard the ship R.V. Pelagia, the researchers explored the Nazaré Canyo
One lump of rock is revealed as two in the distant Kuiper belt.
The stand-offish dance of two asteroids at the outer reaches of the Solar System is captivating astronomers. The two rocky objects, discovered locked in mutual orbit, could tell us about the properties of the far-flung Kuiper belt.
Christian Veillet and his team 1 studied an object called 1998 WW31 in the Kuiper belt, a sparsely populated region of space beyond the orbit of Neptune. The object w
Women who work during pregnancy are almost five times as likely to develop pre-eclampsia, concludes research in the Journal of Epidemiology and Community Health.
In pre-eclampsia abnormally high blood pressure, blood poisoning, and swelling develop. Pre-eclampsia can be dangerous for both mother and child.
The blood pressure of 933 women in their early to late 20s was monitored over 24 hours while they went about their daily routines. The women were all between 18 and 24 weeks of pr