DEGENERATIVE brain diseases, including Alzheimers, could one day be treated with drugs that can reverse distressing loss of memory, according to a study released Sunday. The very term "memory loss'' could be a misnomer in such cases, suggests the study, published in British journal Nature: that cherished recollection of a first kiss, seemingly destroyed by disease, may have simply been rendered inaccessible by obstructed neural pathways. In laboratory experiments, mice suffering the type of brain damage which in humans typically leads to dementia - robbing victims of the ability to remember past events or even to recognize loved ones -...