The blood–brain barrier (BBB) separates the blood from the extracellular fluid of brain. It is a highly selective permeability barrier. It allows the passage of water, glucose, oxygen, carbon dioxide and fat soluble molecules. It protects the brain by preventing the entry of many common bacteria and potential neurotoxins (chemicals that affect signal transmission between nerves). But the selective permeability also hampers the delivery of many diagnostic agents and medications to the brain. Inflammation, certain infections, brain injury, high blood pressure, radiation, etc. can break down the barrier.

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Blood Brain Barrier

How `chameleon-like` breast cancer cells lead to brain tumors

A study by City of Hope neurosurgeons has explained how breast cancer cells cross the blood-brain barrier and form brain tumors.

Blood Brain Barrier

Heroin addiction vaccine ready for human trial

Heroin addiction vaccine ready for human trial

Blood Brain Barrier

Cannabinoid, a synthetic cannabis compound could cure brain cancer!

Cannabinoid, a synthetic cannabis compound could cure brain cancer!

Blood Brain Barrier

Rheumatoid arthritis drug limits stroke damage

Rheumatoid arthritis drug limits stroke damage

Blood Brain Barrier

Indian scientists find clue to Alzheimer's cure in deadly snake's venom

Indian scientists find clue to Alzheimer's cure in deadly snake's venom

Air Pollution

Is air pollution making your child dumber?

Is air pollution making your child dumber?

Blood Brain Barrier

Low flame cooking keeps Alzheimer's away

Low flame cooking keeps Alzheimer's away

Blood Brain Barrier

Thirst switch in our brain found!

Thirst switch in our brain found!

Blood Brain Barrier

Revealed: Cells of our immune system help spread HIV infection in the body

Revealed: Cells of our immune system help spread HIV infection in the body

Blood Brain Barrier

How `chameleon-like` breast cancer cells lead to brain tumors

A study by City of Hope neurosurgeons has explained how breast cancer cells cross the blood-brain barrier and form brain tumors.

Blood Brain Barrier

Heroin addiction vaccine ready for human trial

Heroin addiction vaccine ready for human trial

Blood Brain Barrier

Cannabinoid, a synthetic cannabis compound could cure brain cancer!

Cannabinoid, a synthetic cannabis compound could cure brain cancer!

Blood Brain Barrier

Rheumatoid arthritis drug limits stroke damage

Rheumatoid arthritis drug limits stroke damage

Blood Brain Barrier

Indian scientists find clue to Alzheimer's cure in deadly snake's venom

Indian scientists find clue to Alzheimer's cure in deadly snake's venom

Air Pollution

Is air pollution making your child dumber?

Is air pollution making your child dumber?

Blood Brain Barrier

Low flame cooking keeps Alzheimer's away

Low flame cooking keeps Alzheimer's away

Blood Brain Barrier

Thirst switch in our brain found!

Thirst switch in our brain found!

Blood Brain Barrier

Revealed: Cells of our immune system help spread HIV infection in the body

Revealed: Cells of our immune system help spread HIV infection in the body