ReThinking Lou Gehrig's Disease

Read this article featured in Discover about Lou Gehrig and the disease that bears his name:

That may seem a strange question, akin to asking who’s buried in Grant’s tomb. But a new study proposes that some athletes diagnosed with Lou Gehrig’s disease may in fact have a different fatal disease that is set off by concussions.

Researchers have previously investigated the link between athletes and this neurodegenerative disease, more technically known as amyotrophic lateral sclerosis (ALS). A recent study examined what seemed to be a higher than usual incidence of Lou Gehrig’s disease among soccer players, and, of course, the disease bears the name of a New York Yankee who was famously undaunted by the hard knocks of his sport. Though it’s impossible to determine now whether Lou Gehrig suffered from ALS or a different condition (Gehrig was cremated), the study’s lead author speculates that Lou Gehrig’s disease might be a misnomer:

Big Belly Study Findings Linked to Dementia

Exercise is a form of anti-dementia.  A May 2010 online issue in the journal Annals of Neurology, the official journal of the American Neurological Association and the Child Neurology Society, reveal results of the study by Boston University School of Medicine.

In the new study, U.S. researchers confirmed the known link between obesity and lower total brain volume and also found that abdominal fat in otherwise healthy middle aged people is associated with lower total brain volume, suggesting a greater risk of dementia and Alzheimer's later on in life.

A clinical diagnosis of dementia is made when two or more brain functions are significantly impaired. The condition shows as short term and long term memory decline, and deterioration of language, problem solving and other cognitive abilities. It can result from irreversible causes such as Alzheimer's disease, vascular dementia, and Huntington's disease, or it can result from treatable causes such as brain tumor, reaction to drugs, or metabolic problems.

According to World Health Organization (WHO) figures released in 2005, there are about 24 million people in the world living with dementia, with 4.6 million new cases coming forward every year.

So the take away here is do not forget to stay slim, eat well, excercise and stay healthy or, later,  you might forget!

 

Alzheimer's? Forget Flavor, Remember Music

Worried about whether your favorite desert will taste the same in years to come?  New research out of Milan, Italy reveals a possible link between flavor and abnormal eating behavior in patients with Alzheimer's Disease.  And words put to music assist those same patients memory of the words sung as opposed to spoken.  But not so for healthy adults.

Forget Flavor?

The Journal Cortex  published "Flavour processing in semantic dementia" by Katherine E. Piwnica-Worms, Rohani Omar, Julia C. Hailstone, and Jason D. Warren, and appears in Cortex, Volume 46, Issue 6 (June 2010).

The researchers tested patients' flavour processing using jelly beans: a convenient and widely available stimulus covering a broad spectrum of flavours. The abilities of patients to discriminate and identify flavours and to assess flavour combinations according to their appropriateness and pleasantness were compared with healthy people of the same age and cultural background. Patients were able to discriminate different flavours normally and to indicate whether they found certain combinations pleasant or not, but they had difficulty identifying individual flavours or assessing the appropriateness of particular flavour combinations (for example, vanilla and pickle).

These findings provide the first evidence that the meaning of flavours, like other things in the world, becomes affected in semantic dementia: this is a truly 'pan-modal' deficiency of knowledge. The research gives clues to the brain basis for the abnormal eating behaviours and the altered valuation of foods shown by many patients with dementia. More broadly, the results offer a perspective on how the brain organises and evaluates those commonplace flavours that enrich our daily lives.

So if you ever hear an elderly person announce, after trying frog legs, "tastes like chicken," consider these findings.

Remember Music

The National Institute on Aging supports Research from Boston University School of Medicine. That research shows that patients with Alzheimer's disease (AD) are better able to remember new verbal information when it is provided in the context of music even when compared to healthy, older adults. The findings, which currently appear on-line in Neuropsychologia, offer possible applications in treating and caring for patients with AD.

Watching Grandma kick it to her genre of music explains these findings, or the other way around. So in the end, the last things I may remember are the lyrics to some old Led Zeppelin or Jethro Tull songs.  "Whole Lotta...Aqualung!"

Teenage Alcohol Abuse Causes Brain Injury

Alcohol abuse by teenagers is similar to drug abuse on brain development.  There are two major periods of mental development: The first three years of life and adolescence.  Hopefully by the early 20s the brain is fully developed.

During adolescence the brain has difficulty handling emotions, seeks high excitement/low effort activities, and has poor planning and judgment skills. You can either think back to your own teenage angst or look at your kids or grandkids.  That combination leads to a cycle in which impulsive decisions to consume reduce inhibitions more and lead to increased impulsiveness and risk taking.

It’s also attractive to teens because consumption begins a short period of feeling good with no effort expended.  Unfortunately this many times sets the stage for adult behavior as well.

The AMA reports, additionly, adolescent females who drink alcohol have a greater risk of benign breast disease than do their non-drinking counterparts, according to new research.

The 2010 statement indicates that the brain's frontal lobes, essential for functions such as emotional regulation, planning and organization, continue to develop through adolescence and young adulthood. At this stage, the brain is more vulnerable to the toxic and addictive actions of alcohol and other drugs.  The developmental interruption is the concern.

Alcohol is the most commonly used and abused drug among youth in the U.S., according to the Centers for Disease Control and Prevention.

Nearly three-quarters of students (72%) consumed alcohol by the end of high school, according to the 2008 Monitoring the Future study, which is funded by the National Institute on Drug Abuse. Each year, the study surveys a total of about 50,000 students in eighth, 10th, and 12th grades. In 2008, 55% of 12th graders and 18% of eighth-graders reported having been drunk at least once.

 The American Academy of Pediatrics has published an updated policy statement on alcohol use by youth and adolescents. The AAP recommends that physicians take the following steps to help prevent and reduce underage drinking:

  • Become knowledgeable about adolescent alcohol, tobacco and other substance use through training programs or continuing medical education.
  • Obtain a complete family medical and social history at prenatal and child wellness visits to explore potential genetic and family influences regarding alcohol and other substance use.
  • Recognize risk factors for adolescent alcohol use and be aware of mental health problems that might occur in this age group.
  • Use validated methods to screen regularly for alcohol and other drug use.
  • Assess patients whose screening results are positive for alcohol use to determine the appropriate level of intervention.
  • Use brief intervention and motivational interviewing techniques to work with patients who use alcohol but do not meet criteria for immediate referral.
  • Discuss the hazards of alcohol and other substance use with patients.
  • Strongly advise teen patients against the use of alcohol, tobacco and other illicit drugs.
  • Encourage parents to be good role models for healthy life choices.
  • Be familiar with local resources to which young patients can be referred for treatment.
  • Support continuation of 21 as the minimum legal drinking age.
  • Support further research into prevention, evidence-based screening and identification, brief intervention, and management and treatment of alcohol and other substance use by adolescents.

Source: American Academy of Pediatrics, "Policy Statement Alcohol Use by Youth and Adolescents: A Pediatric Concern," Pediatrics, published online April 12 .

No Alzheimer's Prevention

New Evidence that prevention will not cure Alzheimer's.  Here is some news that will turn your head around.  Just when you thought you might be doing everything right, you find out you might be wrong.  This reminds me of how much cigarette smoking is condoned Europe.  If you have ever been on an elevator in Italy or France you can not help but notice (and ingest) second hand smoke from the habitual smokers.  Now why is that?  Did Woody Allen's prediction in Sleeper come true?  Are cigarettes really good for you!?  And now the following.

An independent panel of experts meeting in the US concluded there is no evidence that you can prevent or slow down Alzheimer's, a progressive and fatal brain disease, even if you keep yourself active with exercise, social interaction, brain puzzles, or take fish oil, other supplements, or medication.  That is exactly the opposite of what we have been told.

The National Institutes of Health determined that the value of these strategies for delaying the onset and/or reducing the severity of decline or disease hasn't been demonstrated in rigorous studies.  Interestingly, the panel's assessment of the available evidence revealed that progress to understand how the onset of these conditions might be delayed or prevented is limited by inconsistent definitions of what constitutes Alzheimer's disease and cognitive decline. Other factors include incomplete understanding of the natural history of the disease and limited understanding of the aging process in general. The panel recommended that the research community and clinicians collaborate to develop, test, and uniformly adopt objective measures of baseline cognitive function and changes over time.
 

Alzheimer's Disease and Cognitive Decline, Structured Abstract. April 2010. Agency for Healthcare Research and Quality, Rockville, MD. http://www.ahrq.gov/clinic/tp/alzcogtp.htm actually concludes:

The current research on the list of putative risk or protective factors is largely inadequate to confidently assess their association with AD or cognitive decline. Further research that addresses the limitations of existing studies is needed prior to be able to make recommendations on interventions.

 But the initial ramifications may make us all rethink taking up smoking!  If you have not seen it, watch Woody Allen explain it in this short video.

 

Dementia and Driving

When my grandmother got old enough to officially be considered "blind" we decided it was time to take away her car and driving ability.  First off, I bought her the car a few years ago and so she spent her last years driving a new sporty car as opposed to the 20 year old Toyota her late husband left her.  And second, I moved her in with me to help make up for the transportation burden.  We drive her wherever she needs to go.  But a responsible decision needed to be made to get her less than safe driving skills off the road.  For her sake, our sake, and most importantly, for the sake of other drivers and passengers including little babies.

But taking away an elder's ability, or right, to drive is a dire move.  It supports the reality that as we age, more and more is taken away from us.

Dementia from normal aging also requires difficult decisions regarding driving.  Dementia is a loss of brain function that occurs with certain diseases. It affects memory, thinking, language, judgment, and behavior.And since, statistically, those who suffer brain injury are more likely than not to develop dementia, driving may be an issue for those with mild and moderate brain injury.

Caregiver.org blogs "As a general rule, individuals with early stage or mild dementia who wish to continue driving should have their driving skills evaluated immediately (see “Arrange for an Independent Driving Evaluation” below). Individuals with moderate or severe dementia should not drive."

Insurance Company studies state Yes, there is enough small-scale research to tell us that over time, driving and dementia don't mix. The harder question is exactly when driving skills deteriorate? This question is harder to answer and the research is not clear enough to give a simple answer. That is why we recommend an approach that includes observation of driving skills right from the point of diagnosis and planning ahead for the time when the person must stop driving.

The American Academy of Neurology has issued a new guideline to help determine when people with Alzheimer's disease or another type of dementia should stop driving. The guideline is published in the April 12, 2010, online issue of Neurology®, the medical journal of the American Academy of Neurology.

Dementia reveals itself in many ways.  For example Dementia symptoms include difficulty with many areas of mental function, including:

Language
Memory
Perception
Emotional behavior or personality
Cognitive skills (such as calculation, abstract thinking, or judgment)

 The guidelines also found that caregivers should trust their instincts. A study found that caregivers who rate a patient's driving as "marginal" or "unsafe" were often proven correct when the patient took an on-road driving test. On the other hand, patients who deemed their own driving as "safe" were not necessarily accurate in their own assessments.

Caregivers and family members play a role in identifying warning signs from unsafe drivers with dementia. These include:

Decreased miles being driven

Collisions

Moving violations

Avoiding certain driving situations, such as driving at night or in the rain

Aggressive or impulsive personality traits.

Read the full report and guidelines at www.neurology.org/cgi/rapidpdf/WNL.0b013e3181da3b0fv1.pdf.

Social Security to Add Early Onset Alzheimer's Benefit

All to often people who suffer from disease are unable to get care due to insurance company limitations and policies, lack of insurance or finances to cover expenses.  Sometimes folks are left with Social Security Benefit applications for their care.

In its effort to improve and expedite the disability determination process, the Social Security Administration (SSA) has announced that it will add early-onset Alzheimer's disease to its Compassionate Allowances Initiative. The initiative identifies debilitating diseases and medical conditions that meet the SSA's disability standards for Social Security Disability Income (SSDI) or Supplemental Security Income (SSI). 

Social Security is launching this expedited decision process with a total of 50 conditions.  Over time, more diseases and conditions will be added.  A list of the first 50 impairments -- 25 rare diseases and 25 cancers -- can be found at www.socialsecurity.gov/compassionateallowances.

This recent development will lead to increased care more quickly for those who could not otherwise afford it.

Since 2003, the Alzheimer's Association has been advocating on behalf of individuals with early-onset Alzheimer's as they navigate the Social Security disability determinations process and welcomes the SSA's decision. Until now, individuals with early-onset Alzheimer's disease have faced a myriad of challenges when applying for SSDI or SSI, including a long decision process, initial denials, and multiple appeals.

Today's decision will simplify and streamline the SSDI/SSI application process and decrease the wait time for benefits, which for some has lasted as long as three years. There are currently an estimated 5.3 million Americans with Alzheimer's disease. Although the majority of Alzheimer cases are individuals age 65 and older, a significant number of people under age 65 are also affected by this fatal disease and have few financial options other than the Social Security disability program. 

This good news comes at a time when politics has brought the issue of universal health care to a stand still.  It always intrigues me that certain folks think the "right" to choose a doctor, hence stumping public/social or universal health care, exists.  While, at the same time, those folks shun the idea that anyone has a "right" to not be subject to Rendition based on suspicion, or the "right" of due process.

What ever your reflection on the matter, the recent Compassionate Allowances Initiative moves us in the right direction.
 

Cigarette and Alcohol Use Contribute to Alzheimer's

Most interesting news pegging the tobacco-industry.

A UCSF analysis of published studies on the relationship between Alzheimer's disease and smoking indicates that smoking cigarettes is a significant risk factor for the disease. After controlling for study design, quality of the journals, time of publication, and tobacco industry affiliation of the authors, the UCSF research team also found an association between tobacco industry affiliation and the conclusions of individual studies. Industry-affiliated studies indicated that smoking protects against the development of Alzheimer's Disease, while independent studies showed that smoking increased the risk of developing the disease.

Study findings were published online in the January issue (19:2) of the Journal of Alzheimer's Disease.  

Alcohol Use Found in Cognitive Decline

Studies of alcohol use and cognition among the elderly are rare and have mixed results. A study of drinking among the elderly in Brazil has found that heavy alcohol use is associated with more memory and cognitive problems than mild-to-moderate alcohol use, especially among women.

Results will be published in the April 2010 issue of Alcoholism: Clinical & Experimental Research .
 

 

More on High Blood Pressure

Since I recently posted on the topic linking high blood pressure to dementia, I came across my doctor's newsletter on Blood Pressure.  I reprint it here for those interested.

The leading cause of death and disability in the United States is from cardiovascular diseases, and the most common disease is high blood pressure.  High blood pressure, also known as
hypertension, usually does not have any symptoms – hence, the nickname “silent killer.”

Unfortunately, one-third of those who have high blood pressure do not realize it and are not aware of their risk for heart disease. Therefore, many people live years without treatment, possibly damaging their heart, blood vessels, and kidneys.

Lifestyle choices (e.g., weight control, tobacco use, proper nutrition, regular exercise) can help
prevent and/or control high blood pressure. The following are common questions and answers about blood pressure.

What is blood pressure?

It is the force of blood against the walls of arteries. Systolic pressure (the top number) is the force as the heart beats. Diastolic pressure (the bottom number) is the force as the heart relaxes.

A blood pressure reading of 120/80 mmHg is articulated as “120 over 80.”

What is the meaning of the numbers?

A systolic pressure of 120 or less is considered normal. Diastolic pressure of 80 or less is considered normal. Therefore, 120/80 or less is a normal blood pressure. The chart below shows normal blood pressure levels, as well as the levels of high blood pressure.

What are the dangers of high blood pressure?

High blood pressure places an additional strain on the circulatory system (i.e., heart and blood vessels).  This strain results in arteries becoming thicker, narrower, and weaker, sometimes causing an obstruction.  A completely obstructed artery often leads to heart attacks, strokes, kidney disease, and dementia.

Is low blood pressure a health problem?

The training effect of regular exercise, especially when working out rigorously, is a lower blood pressure. At times, an individual who does not exercise may experience regular low blood pressure. If symptoms do not accompany the low pressure, it usually is not serious. However, if
blood pressure suddenly drops, it may indicate an underlying problem causing inadequate blood flow to the heart, brain, and other vital organs. Symptoms may include dizziness or lightheadedness.

What are some tips to prevent/control high blood pressure?

Healthy living is at the heart of preventing and controlling high blood pressure. Are you:
 Maintaining a healthy weight?
 Engaging in regular physical activity (fi ve 30-minute sessions of aerobic exercise and two
30-minute strength training sessions per week)?
 Eating a low-fat, high-nutrient diet (fruits, vegetables, low-fat dairy foods, low sodium)?
 Limiting alcohol consumption?

References:
1. NIH – National Heart, Lung, Blood
Institute, www.nhlbi.nih.gov
2. American Heart Association,
www.heart.org
3. Blood Pressure Association (United
Kingdom), www.bpassoc.org.uk
Exceptional Doctors. Exceptional Care. Exceptional Results.
LivingWell
The Link Between Heart Health and Blood Pressure
February 2010
 

Dementia and Hypertension Linked Again

 Another study has found that hypertension may contribute to increased risk of dementia, this time with evidence of actual brain abnormalities. I previously wrote about the link between Hypertension and Alzheimer's disease.

This is especially relevant to those who are not controlling their blood pressure. Blood pressure is not something one feels is high or low. Specific medical evaluation, blood pressure test, is necessary. 

Data from an offshoot of the Women's Health Initiative found that participants' baseline blood pressure was strongly correlated with volume of lesions in their brains' white matter, according to Lewis Kuller, MD, DrPH, of the University of Pittsburgh, and colleagues.

Along with earlier studies linking blood pressure to clinical dementia, the evidence "supports tight control of blood pressure levels, especially beginning at younger and middle age as a possible and perhaps only way to prevent dementia," Kuller and colleagues concluded online in the Journal of Clinical Hypertension.

Treating hypertension in the elderly appears to protect against dementia and cognitive decline.  Uncontrolled hypertension in older patients increases the risk of cognitive impairment. Hypertensive patients had a 70% greater risk of non-amnestic mild cognitive impairment compared with nonhypertensive patients according to Christiane Reitz, M.D., Ph.D., of Columbia University in New York. (C Reitz et al. "Hypertension and the risk of mild cognitive impairment." International Society of Vascular Behavioral and Cognitive Disorders meeting, July 11-14, San Antonio. Final program and abstract book. Abstract O-6)

 

For each year an individual took medication to lower blood pressure, the risk of dementia decreased by about 3%, found Rita Peila, Ph.D., an epidemiologist at the National Institute on Aging and a scientist at the Pacific Health Research Institute in Honolulu.

My question is whether a person who controls their blood pressure and hypertension with medicine can decrease their risk of dementia to that of someone without hypertension.  I predict that other risk factors would need to be accounted for but, other things being equal, can a person with controlled high blood pressure eliminate the risk of dementia?

Do Cell Phones Prevent or Contribute to Alzheimer's?

Now the million of cell phone users have good reason to keep on talking.  It baffles my mind to learn of something typically regarded as negative being cast into a positive light.  Reminds me of Woody Allen's Sleeper where future scientists discover cigarette smoking and eating fat is healthy.

An international team of researchers studying the long term effects of electromagnetic waves like those emitted by cell phones on mice were surprised to find they protected their brains against Alzheimer's and even reversed the memory damage caused by the disease.

The neuroscientists, electrical engineers, and neurologists published the study and findings in the Journal of Alzheimer's Disease

The research results are exciting.  But since they occur in mice, the ultimate human affects are still not known.  Dr. Susan Sorenson, Alzheimer's Society Head of Research, comments, 'This study could open new doors in Alzheimer's research but it also poses some interesting questions that need answers. However, dementia research is dramatically underfunded. The government currently spends eight times less on dementia research than cancer research. In order to make further scientific advances dementia needs to be given higher priority.' 

"Electromagnetic Field Treatment Protects Against and Reverses Cognitive Impairment in Alzheimer's Disease Mice."
Gary W. Arendash, Juan Sanchez-Ramos, Takashi Mori, Malgorzata Mamcarz, Xiaoyang Lin, Melissa Runfeldt, Li Want, Guixin Zhang, Vasyl Sava, Juan Tan and Chuanhai Cao.
Journal of Alzheimer's Disease, Volume 19:1 (January 2010).
 

Imaging Detects Alzheimer's

The American Medical Association (AMA) reports that PET (postron emission tomography) is able to detect the progression of Alzheimer's in patients with dementia.  Preclinical Alzheimer's disease can be detected by screening an individual's cerebrospinal fluid for biomarkers of the condition. In addition, imaging with positron emission tomography (PET) can detect deposits of the substance linked to dementia in living patients.

159 older adults (average age 71.5) who had undergone PET scans and did not have symptoms of dementia were assessed. These patients were followed for between 0.8 and 5.5 years after having the scan and underwent between two and six assessments for dementia during that timeframe.

A total of 23 participants progressed to clinically detectable dementia during follow-up, and nine were diagnosed with dementia of the Alzheimer type. These diagnoses were made by specialist clinicians who diagnosed the condition at an earlier stage than typically occurs and corroborated the diagnosis by declines in multiple cognitive domains as well as a loss of volume in certain areas of the brain.
 

If this new discovery can assist clinicians in detecting dementia and Alzheimer's symptoms earlier, treatment can be more effective.

This study provides support for the premise that preclinical Alzheimer's disease, detected by the cerebrospinal fluid signature for Alzheimer's disease predicts symptomatic Alzheimer's disease.  The study is published at Arch Neurol. 2009;66[12]:1469-1475.
 

Not Acting Your Age Can Be Healthy

Have you ever seen a 65 year old man with graying head driving with the top down in his brand new red Corvette?  Or how about the 80 year old great grandmother who thinks her jet black hair is fooling anybody?  Well these otherwise refusing-to-act-their age folks might just be on to something.

God bless my grandmother, Mary, 86 years young.  She lives with me and my family and we just got back from a Christmas Holiday cruise.  And that was her second cruise in 6 months!  We call her the energizer bunny for obvious reasons.

Therapies that can keep us younger longer might also push back the clock on Alzheimer's disease, suggests a new study of mice in the December 11th issue of the journal Cell, a Cell Press publication.

Reduction of insulin signaling is known to extend life span, but now Dillin and colleagues report that this strategy can also work to mitigate and forestall the affects of Alzheimer's disease in a mouse model.

Most cases of Alzheimer's disease (AD) exhibit sporadic onset during the seventh decade of life or later, whereas the fewer mutation-linked, familial cases typically manifest during the fifth decade. These temporal features, common to numerous neurodegenerative diseases, define aging as the major risk factor for the development of these maladies (Amaducci and Tesco, 1994).

 

What is a Cluster Headache?

According to Medilexicon's medical dictionary:

    Cluster headache is "possibly due to a hypersensitivity to histamine; characterized by recurrent, severe, unilateral orbitotemporal headaches associated with ipsilateral photophobia, lacrimation, and nasal congestion."

Cluster headaches (also used in singular: headache), also nicknamed suicide headaches, occur several times a day, they come on unexpectedly, do not last long, and are generally very painful. The pain is usually intense, and sometimes only on one side of the head. Frequently, the sufferer also feels pain around the eye.

A cluster-headache sufferer can wake up during the night because of the pain. Often, this occurs at the same time each night. The eye on the painful side of the head may be reddened and watery. The individual's nose may be runny or blocked on the side of the nose where the pain is.

Read more here.

Storing Fat May Lead to Dementia

A new study published in the Scientific Journal Neurology reveals that women who store fat on their waist in middle age are more than twice as likely to develop dementia when they get older.

The most common symptoms of dementia are forgetfulness, impaired speech and problems with recognition and orientation. It is a condition that can affect all our mental faculties and which is more common as we get older. Around seven per cent of the population over the age of 65 and just over 20 per cent of the over-80s have severe dementia.

Dementia isn't a specific disease. Instead, it describes a group of symptoms affecting intellectual and social abilities severely enough to interfere with daily functioning. It's caused by conditions or changes in the brain. Different types of dementia exist, depending on the cause. Alzheimer's disease is the most common type.

Memory loss generally occurs in dementia, but memory loss alone doesn't mean you have dementia. Dementia indicates problems with at least two brain functions, such as memory loss along with impaired judgment or language. Dementia can make you confused and unable to remember people and names. You may also experience changes in personality and social behavior. However, some causes of dementia are treatable and even reversible.

Dementia symptoms vary depending on the cause, but common signs and symptoms include:

Memory loss
Difficulty communicating
Inability to learn or remember new information
Difficulty with planning and organizing
Difficulty with coordination and motor functions
Personality changes
Inability to reason
Inappropriate behavior
Paranoia
Agitation
Hallucinations
 

Imaging and Diagnosis of Alzheimer's

A new study published in Proceedings of the National Academy of Sciences (PNAS) promises to improve diagnosis and monitoring of Alzheimer's disease.  Scientists at the University of California, San Diego have developed a fast and accurate method for quantifying subtle, sub-regional brain volume loss using magnetic resonance imaging (MRI). 

The general pattern of brain atrophy resulting from Alzheimer's disease has long been known through autopsy studies, but exploiting this knowledge toward accurate diagnosis and monitoring of the disease has only recently been made possible by improvements in computational algorithms that automate identification of brain structures with MRI. The new methods described in the study provide rapid identification of brain sub-regions combined with measures of change in these regions across time. The methods require at least two brain scans to be performed on the same MRI scanner over a period of several months. The new research shows that changes in the brain's memory regions, in particular a region of the temporal lobe called the entorhinal cortex, offer sensitive measures of the early stages of the disease.
 

New Treatment for Alzheimer's and Parkinson's

Researchers in the USA have discovered a potential new function for anti-epileptic drugs in treating neurodegenerative disorders such as Alzheimer's and Parkinson's disease. The study, published in BioMed Central's open access journal Molecular Neurodegeneration, found that neurons in the brain were protected after treatment with T-type calcium-channel blockers, which are commonly used to treat epilepsy.

Read more here.

Alzheimer's Cognitive Declines Before Memory

A new study from a center for Alzheimer's research in the US suggests that cognitive skills other than memory, for example visuospatial skills that help us work out how objects relate to each other in three dimensions as we look at them, start to decline years before patients receive a clinical diagnosis for Alzheimer's.
 

In an article found at "Longitudinal Study of the Transition From Healthy Aging to Alzheimer Disease."
David K. Johnson; Martha Storandt; John C. Morris; James E. Galvin.
Arch Neurol, Oct 2009; 66: 1254 - 1259, conclusions were that pre-diagnosis events occur that currently do not fit into criteria for Alheimer's diagnosis.  Therefore what was formerly thought to be normal aging may actually be signs of Alzheimer's disease. 
 

The studies were funded by grants from the National Institute of Health.

Diabetes and Alzheimer's

A recent study by Mount Sinai faculty suggests that a gene associated with onset of type-2 diabetes also decreases in Alzheimer's disease dementia cases. The research, led by Dr. Giulio Maria Pasinetti, MD, Ph.D., The Aidekman Family Professor in Neurology, and Professor of Psychiatry and Geriatrics and Adult Development at Mount Sinai School of Medicine, was published this week in the scientific journal, Archives of Neurology.

Read the full article by clicking here.