Calcium signalling: IP3 rises again… and again

Calcium signalling: IP3 rises again… and again

Recent results indicate that 'regulators of G-protein signalling' may contribute to the generation of receptor-specific patterns of cytosolic Ca2+ oscillations by associating with specific receptors, accelerating G-protein inactivation and responding to changes in cytosolic Ca2+.

Human cloning spectre rises again

Has a clone baby been born or hasn't it? Or is one on the way? If so, where? Unproven claims and counterclaims have left the world in a profound uncertainty. At the time of writing, neither the company Clonaid nor the fertility doctor Severino Antinori have produced evidence for the assertion that their cloning experiments have been successful. In theory, these claims would be easy to prove or ...

The Complement System Rises Again

In the best articles, generally those dealing with basic Chromosome Puffs research, the combination of depth and accessibility is impressive. One on Hox genes introduces the notion of The Science Times Book of Genetics a conserved body plan among species, illustrating the Edited by Nicholas Wade point with the fauna of Star Trek, and continues with New York: The Lyons Press (1999). 256 pp. an e...

Cerebral scintigraphy--the phoenix rises again.

This paper reviews the development of cerebral scintigraphy from its early days of planar imaging with simple technetium-99m labelled compounds to the recent revival of the technique in the form of positron-emission and single-photon emission tomography. A short explanation of instrumentation and radiopharmaceuticals is given as a prelude to a description of both techniques in normal and pathol...

"Horrible balance-of-trade loss" in MDs rises again.