Thursday, March 12, 2009

Leaky blood vessels stroke link / Sleeping problems among children and young people

Hi All
When reading this article about strokes, you should be aware that scientific research has already clearly shown that electro magnetic radiation (EMR) causes damage to the blood brain barrier.  This is a fact that has been known for several years.  (Increased permeability of the blood brain barrier (a mechanism for headache), Frey et al. (1975), Alberts (1977, 1978) and Oscar and Hawkins (1977).
The research information contained in this short story may eventually show that many strokes, causing serious illnesses and deaths, are the result of persons being exposed to electro magnetic radiation. 
We already fear that cancer will increase massively, because of exposure to EMR.  Now we should be concerned about the number of strokes that we will see in much younger persons, as their use of wireless devices and exposure increases.
Martin Weatherall
----- Original Message -----
From: Margaret E White

Leaky blood vessels stroke link

One in five strokes may be caused by a weakening of the tiny arteries in the brain, a new study has found.

The brain damage caused by lacunar strokes, which occur in tiny rather than large arteries, may be caused by a gradual weakening of the artery wall.

It was previously thought this type of stroke was caused only by reduced blood flow to the brain.

Edinburgh University experts believe the weakening occurs in the protective lining of the small arteries.

Known as the blood-brain barrier, the protective lining stops potentially harmful substances getting into the brain.

Protective barrier

The research, published in the Annals of Neurology, involved two groups of stroke patients - one with lacunar stroke and one with the large artery type.

Both groups were injected with magnetic dye before having brain scans that showed how the dye travelled through their blood vessels.

In the lacunar patients, more dye leaked out of the blood vessels into the brain than was the case in the other group.

Scientists said it could only have happened if the dye were able to leak through the protective barrier.

Joanna Wardlaw, professor of Applied Neuroimaging at Edinburgh University, said: "This is an important milestone in the understanding of this common type of stroke and dementia.

"We don't know exactly what causes this weakening of the blood-brain barrier - it may be age, blood pressure or inflammation. More research is required, but we hope the results will help in the search for more treatments to this widespread condition."

The Chief Scientist Office, the Wellcome Trust, Chest Heart Stroke Scotland, the Row Fogo Charitable Trust, the Cohen Charitable Trust, and the UK Stroke Association supported the study.