Immunoregulatory T-cells wane with age in some people, triggering type 1 diabetes.

The elusive molecule responsible for spreading gene silencing through plants is still unknown, but the pioneers of RNAi research at CSIRO Plant Industry are close to tracking it down.

It's too early to announce a new dawn, but there's a distinct glow on one of neuroscience's darkest horizons. The enigma of the paralysing central nervous system disorder, multiple sclerosis, may be nearing solution.