Understanding obesity: New research examines how hunger signals work in the brain
...otein called leptin is released from fat cells and hitches a ride across the blood vessels that feed the brain, known as the "blood-brain barrier." The protein then is in the right place to tell the brain that the body has had enough to eat, to eat less or to burn calories faster. However, among those who ar...UIC scientists provide first images of HIV in living cells
... from the outer membrane to the nucleus. The virus hitches a ride aboard a multi-unit protein called dynein, commonly referred to as a molecular motor. "Dynein is like a tractor trailer, the microtubules are the highway, and the HIV particles are the cargo," said David McDonald, assistant professor of microb......occurs when the HIV gp120 on an infected cellfirst hitches up to the receptors on an uninfected T cell, resulting in thefusion of the cell and viralmembranes, and transfer of virus from the infected to the uninfected cell. Turning around what occurs naturally, the remodeled shell of VSV -- which nowlooks l...