1,520 Alzheimers Headlines
Patricio Reyes M.D., F.A.N.N.
Director, Traumatic Brain Injury, Alzheimer's Disease & Cognitive Disorders Clinics; Phoenix, AZ; Chief Medical Officer, Retired NFL Players Association

Barrow Neurological Institute
St. Joseph's Hospital and Medical Center
"2 NEW THERAPIES FOR ALZHEIMER'S"
Produced by MD Health Channel
Executive Editor.....Anne-Merete Robbs
CEO..............Stan Swartz

Dr. Reyes and his team are constantly working on new medicines and new solutions...You will receive news alerts...information on new trials as Dr Reyes announces them!
"2 NEW THERAPIES FOR ALZHEIMER'S"
Patricio Reyes M.D., F.A.N.N.
Director, Traumatic Brain Injury, Alzheimer's Disease & Cognitive Disorders Clinics; Phoenix, AZ; Chief Medical Officer, Retired NFL Players Association

St. Joseph's Hospital and Medical Center



DO YOU HAVE ALZHEIMERS?
 
"HELP DR. REYES... IN HIS BATTLE TO FIND A CURE...
.HE NEEDS YOUR HELP:
YOU CAN HELP WIN THE BATTLE FOR A CURE BY JOINING A TRIAL!!"....

Stan Swartz, CEO,
The MD Health Channel



"You'll receive all medication and study based procedures at
no charge

if you qualify for one of the many trials being conducted at Barrow Neurological Institute."
 

"Dr. Reyes Changed My Life"

- John Swartz
92 Years Old
Attorney at Law
"Dr.Reyes Changed My Life "
1:18
"At 92...I had lost my will to live"
5:48
Tips on Aging
2:29
"Dr. Reyes gave me customized health care"
2:09

Patricio Reyes M.D.
Director, Traumatic Brain Injury, Alzheimer's Disease & Cognitive Disorders Clinics; Phoenix, AZ; Chief Medical Officer, Retired NFL Players Association

Barrow Neurological Institute

St. Joseph's Hospital and Medical Center
"PRESERVING BRAIN FUNCTIONS "
Runtime: 50:22
Runtime: 50:22
"2 NEW THERAPIES FOR ALZHEIMER'S"
Runtime: 10:27
Runtime: 10:27
ALZHEIMER'S AWARENESS PROGRAMS
Runtime: 5:00
Runtime: 5:00
BIOMEDICAL RESEARCH IN ALZHEIMER'S DISEASE
PDF Document 850 kb

Download Free

4 TALES OF NEUROSURGERY &
A PIANO CONCERT BY DR. SPETZLER...
Plus 2 books written by Survivors for Survivors!
Robert F. Spetzler M.D.
Director, Barrow Neurological Institute

J.N. Harber Chairman of Neurological Surgery

Professor Section of Neurosurgery
University of Arizona
TALES OF NEUROSURGERY:
A pregnant mother..a baby..faith of a husband.. .plus... Cardiac Standstill: cooling the patient to 15 degrees Centigrade!
Lou Grubb Anurism
The young Heros - kids who are confronted with significant medical problems!
2 Patients...confronted with enormous decisions before their surgery...wrote these books to help others!
A 1 MINUTE PIANO CONCERT BY DR. SPETZLER

Michele M. Grigaitis MS, NP
Alzheimer's Disease and Cognitive Disorders Clinic

Barrow Neurological Clinics
COPING WITH DEMENTIA
 
Free Windows Media Player Click

Links
Barrow Neurological Institute

Archives
October 2006  
November 2006  
December 2006  
January 2007  
February 2007  
March 2007  
May 2007  
June 2007  
November 2007  
December 2007  
April 2008  
July 2008  
August 2008  
September 2008  
October 2008  
November 2008  
December 2008  
January 2009  
February 2009  
March 2009  
April 2009  
May 2009  
February 2010  
March 2013  
May 2013  
November 2013  
January 2014  
February 2014  
March 2014  
April 2014  
May 2014  
June 2014  
July 2014  
June 2016  
July 2016  
August 2016  
September 2016  
October 2016  
November 2016  
December 2016  
January 2017  
February 2017  
March 2017  
April 2017  
May 2017  
June 2017  
July 2017  
August 2017  
September 2017  
October 2017  
November 2017  
December 2017  
January 2018  
February 2018  
March 2018  
April 2018  
May 2018  
June 2018  
July 2018  
August 2018  
September 2018  
October 2018  
November 2018  
December 2018  
January 2019  
February 2019  
March 2019  
April 2019  
May 2019  
June 2019  
July 2019  
August 2019  
September 2019  
October 2019  
November 2019  
December 2019  
January 2020  
February 2020  
March 2020  
April 2020  
May 2020  
June 2020  
July 2020  
August 2020  
September 2020  
October 2020  
November 2020  
December 2020  
January 2021  
February 2021  
March 2021  
April 2021  
May 2021  
June 2021  
July 2021  
August 2021  
September 2021  
October 2021  
November 2021  
December 2021  
January 2022  
February 2022  
March 2022  
April 2022  
May 2022  
June 2022  
July 2022  
August 2022  
September 2022  
October 2022  
November 2022  
December 2022  
January 2023  
February 2023  
March 2023  
April 2023  
May 2023  
June 2023  
July 2023  
August 2023  
September 2023  
October 2023  
November 2023  
December 2023  
January 2024  
February 2024  
March 2024  

This page is powered by Blogger. Isn't yours?

Sunday, September 18, 2016

 

Gene signature in healthy brains pinpoints the origins of Alzheimer's disease






















In healthy tissues, a gene expression signature associated with amyloid-beta and tau aggregation echoes the progression of AD well before the onset of the disease.
Credit: J. Freer

Researchers have discovered a gene signature in healthy brains that echoes the pattern in which Alzheimer's disease spreads through the brain much later in life. The findings, published in the journal Science Advances, could help uncover the molecular origins of this devastating disease, and may be used to develop preventative treatments for at-risk individuals to be taken well before symptoms appear.

The results, by researchers from the University of Cambridge, identified a specific signature of a group of genes in the regions of the brain which are most vulnerable to Alzheimer's disease. They found that these parts of the brain are vulnerable because the body's defence mechanisms against the proteins partly responsible for Alzheimer's disease are weaker in these areas.

The results imply that healthy young individuals with an aberrant form of this specific gene signature may be more likely to develop Alzheimer's disease in later life, and would most benefit from preventative treatments, if and when they are developed for human use.

Alzheimer's disease, the most common form of dementia, is characterised by the progressive degeneration of the brain. Not only is the disease currently incurable, but its molecular origins are still unknown. Degeneration in Alzheimer's disease follows a characteristic pattern: starting from the entorhinal region and spreading out to all neocortical areas. What researchers have long wondered is why certain parts of the brain are more vulnerable to Alzheimer's disease than others.

"To answer this question, what we've tried to do is to predict disease progression starting from healthy brains," said senior author Professor Michele Vendruscolo of the Centre for Misfolding Diseases at Cambridge's Department of Chemistry. "If we can predict where and when neuronal damage will occur, then we will understand why certain brain tissues are vulnerable, and get a glimpse at the molecular origins of Alzheimer's disease."

One of the hallmarks of Alzheimer's disease is the build-up of protein deposits, known as plaques and tangles, in the brains of affected individuals. These deposits, which accumulate when naturally-occurring proteins in the body fold into the wrong shape and stick together, are formed primarily of two proteins: amyloid-beta and tau.

"We wanted to know whether there is something special about the way these proteins behave in vulnerable brain tissue in young individuals, long before the typical age of onset of the disease," said Vendruscolo.

Vendruscolo and his colleagues found that part of the answer lay within the mechanism of control of amyloid-beta and tau. Through the analysis of more than 500 samples of healthy brain tissues from the Allen Brain Atlas, they identified a signature of a group of genes in healthy brains. When compared with tissue from Alzheimer's patients, the researchers found that this same pattern is repeated in the way the disease spreads in the brain.

"Vulnerability to Alzheimer's disease isn't dictated by abnormal levels of the aggregation-prone proteins that form the characteristic deposits in disease, but rather by the weaker control of these proteins in the specific brain tissues that first succumb to the disease," said Vendruscolo.

Our body has a number of effective defence mechanisms that protect it against protein aggregation, but as we age, these defences get weaker, which is why Alzheimer's generally occurs in later life. As these defence mechanisms, collectively known as protein homeostasis systems, get progressively impaired with age, proteins are able to form more and more aggregates, starting from the tissues where protein homeostasis is not so strong in the first place. "Our results imply that by understanding better such defences and by enhancing them," added Vendruscolo, "we may become capable of helping our brains age more healthily."

Earlier this year, the same researchers behind the current study proposed that 'neurostatins' could be taken by healthy individuals in order to slow or stop the progression of Alzheimer's disease, in a similar way to how statins are taken to prevent heart disease. The current results suggest a way to exploit the gene signature to identify those individuals most at risk and who would most benefit from taking neurostatins in earlier life.

Although a neurostatin for human use is still quite some time away, a shorter-term benefit of these results may be the development of more effective animal models for the study of Alzheimer's disease. Since the molecular origins of the disease have been unknown to date, it has been difficult to breed genetically modified mice or other animals that repeat the full pathology of Alzheimer's disease, which is the most common way for scientists to understand this or any disease in order to develop new treatments.

Story Source: The above story is based on materials provided by SCIENCEDAILY
Note: Materials may be edited for content and length