Steve Bunk | Mar 28, 1999 | 7 min read
Above is a photomicrograph of the spinal cord terminal of a sensory axon. The neuron's immunoreactivity for human preproenkephalin suggests that the preproenkephalin gene, which was delivered via a herpes virus vector, is being expressed in sensory neurons. TELOMERE TROUBLES Lack of telomerase makes mice old before their time, a new study shows, but what effect this might have on age-related disease remains uncertain (K.L. Rudolph et al., "Longevity, stress, response, and cancer in aging telom