Welcome! This blog contains research & information on lifestyle, nutrition and health for those with MS, as well as continuing information on the understanding of the endothelium and heart-brain connection. This blog is informative only--all medical decisions should be discussed with your own physicians.The posts are searchable---simply type in your topic of interest in the search box at the top left.Almost all of MS research is initiated and funded by pharmaceutical companies. This maintains the EAE mouse model and the auto-immune paradigm of MS, and continues the 20 billion dollar a year MS treatment industry. But as we learn more about slowed blood flow, gray matter atrophy, and environmental links to MS progression and disability--all things the current drugs do not address--we're discovering more about how to help those with MS.To learn how this journey began, read my first post from August, 2009. Be well! Joan
Friday, November 19, 2010
November 19, 2010 at 11:26am
from the V-Aware November issue.
Dr. Dake is the cardio-thoracic specialist I contacted with Dr. Zamboni's research in January 2009. He was our local doctor at Stanford University. The damage that Dr. Dake saw in Jeff's brain on MRI, and the damage he found in Jeff's jugular veins on MRV made sense to him. As a vascular doctor, he understands the correlation of venous drainage and disease.
Important Points to note in this article:
1. CCSVI resembles a known venous disease, superior vena cava syndrome. Symptoms related to this condition are similar to those in CCSVI. Relieving CCSVI via angioplasty produces similar results in angioplasty for superior vena cava occlusion.
2. CCSVI might account for the low flow states (hypoperfusion) found in pwMS.
3. Slowed blood flow changes the endothelial layer of blood vessels, allowing for a break in the blood brain barrier and immune cell penetration
4. Inflammation created by disturbed blood flow in CCSVI continues to damage the vein lining. Thus, CCSVI will progress with age of patient and length of disease.
Here is Dr. Dake on CCSVI---
Evidence presented recently in the medical literature proposes that patients with multiple sclerosis (MS) have a coexisting high frequency of obstruction to veins that drain the brain and spinal cord.
These data suggest that MS is associated with blockages in veins located in the neck or chest that alter cerebral venous hemodynamics, causing alterations in venous pressure and flow patterns. This venous obstruction is called chronic cerebrospinal venous insufficiency (CCSVI).
Wednesday, November 10, 2010
Dr. Zamboni's published letter in response to the Doepp study
November 10, 2010 at 2:00pm
Published in the Annals of Neurology-
Regarding ‘‘No Cerebrocervical Venous Congestion in Patients with Multiple Sclerosis. Intraluminal Jugular Septation’’ Paolo Zamboni, MD
I read with interest the article titled ‘‘No Cerebrocervical Venous Congestion in Patients with Multiple Sclerosis’’ by Doepp and coworkers.1 Contrary to their conclusions, I believe that the authors’ results are a further validation of venous flow irregularities in multiple sclerosis (MS) patients.
One of the major regulators of cerebral venous outflow is posture, due to the gravitational gradient between the cerebral parenchymal veins and the base of the neck (␣30mmHg).2 The authors demonstrate a much larger change in blood flow volume in normal subjects compared to MS patients when the subjects go from a supine to an upright position. They find a change of 128ml/min and 56ml/min for the right and left sides, respectively, for MS patients. But they find a much larger change of 266ml/min and 105ml/min for their normal subjects. This result actually suggests the presence of chronic cerebrospinal venous insufficiency (CCSVI). Possible causes include intra-luminal septum, membrane, and immobile valve affecting the hydrostatic pressure gradient in the upright position. The presence of such blockages in the extracranial and extravertebral cerebral veins has been proven also by using catheter venography, the unquestionable gold standard in medicine.3,4
There was a trend toward significance (0.06) when comparing the mean global cerebral blood flow (CBF) in MS patients with that in controls. However, the level of significance is under- estimated by the low control sample, 20 versus 56 patients. The reduction in CBF in MS, meaning in practical terms stasis, might become significant by simply increasing the control sample.