A relic worker restores wall paintings in Cave 55 of the Mogao Grottoes in Dunhuang, Gansu province, in August. However, during the restoration and protection process, Su's team has encountered many challenges such as those found in the murals in Cave 85. Cave 85's 110 sq m of murals exhibit three typical diseases of the Mogao Grottoes — flaking, detachment …
New research supports the hypothesis that Alzheimer's disease is caused by a decline in levels of a protein called amyloid-beta. "The paradox is that so many of us accrue plaques in our brains as we age, and yet so few of us with plaques go on to develop dementia," said Espay, professor of neurology in the UC College of Medicine, …