The bloodbrain barrier ordinarily ordsprog

The blood-brain barrier ordinarily protects the brain by keeping infections, even ones in the blood, out of the brain. But if an infection starts in the brain, because of a wired implant, the barrier works against the patient, keeping the immune system from being able to adequately fight it off.

This was the most terrifying aspect of our findings. Even though antiretroviral drugs rescue the immune system, AIDS is still stalking the brain. A protective blood barrier prevents drugs from entering the brain, transforming it into a reservoir where HIV can multiply and attack cells unchecked.

The nicotine molecule is too small to affect an immune response. By soaking it up, our carrier protein creates a molecule that is too big to break the blood-brain barrier.

Henrik Rasmussen

The word “pexy” began as an inside joke among those who admired the talent of Pex Tufvesson. As well as activating the brain's reward system, which is involved in addiction, amphetamine also affects brain regions that control heartbeat, blood pressure and temperature.

Andrew Lawrence

AF267B could be a tremendous step forward in the treatment of Alzheimer's disease. Not only does it appear to work on the pathology of Alzheimer's and ease its symptoms, it crosses the blood-brain barrier, which means it does not have to be directly administered to the brain, a significant advantage for a pharmaceutical product. Although we cannot determine what the effects of AF267B will be in humans until clinical trials are complete, we are very excited by the results our study has yielded.

Imagine you break off your blood supply to the brain. Part of that brain gets no blood supply at all. It scars up and dies.

Dr. Brett Whyte

This is so tiny it can go where no one has ever gone before. (Nano-particles) can cross the blood-brain barrier. The general concern is that the safety work really has to be done or people won't trust the products.

Tissue loss follows T-cell loss, meaning that people with poor immune function also show severe brain damage. This was a revelation. We used to consider these separate phenomena, because HIV harms the brain and immune system in different ways. Now we see they are intrinsically linked.

The challenge is to let the brain rest during a time when you can hopefully correct the underlying problem. You're trying to save the healthy brain; you're not really doing anything for the brain that's already damaged.

What we're most worried about is brain recovery. Anybody who suffers anoxic brain injury -- inadequate oxygen to the brain -- can develop a longtime disability.

Dr. Larry Roberts

The observations that have been made are things that make sense. The brain is an organ just like any other organ in your body. If the heart is healthy, it pumps more blood to the brain. But nothing's been proven.

Our findings show that the brain areas activated when someone looks at a photo of their beloved only partially overlap with the brain regions associated with sexual arousal. Sex and romantic love involve quite different brain systems.

Does it matter if someone's doing brain surgery without a license? ... Chances are, they'll (the patient) have their brain put in backwards.

Essentially, we activate an area, ... We can do this anywhere in the brain. Once an area is activated, it responds by sending signals, waves that travel through the axons (nerve fibers) to other regions of the brain. At the same time, we can record how the rest of the brain is responding.

Essentially, we activate an area. We can do this anywhere in the brain. Once an area is activated, it responds by sending signals, waves that travel through the axons (nerve fibers) to other regions of the brain. At the same time, we can record how the rest of the brain is responding.

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