Omega-3 Could Aid Alzheimer’s Prevention

Omega-3 and Alzheimer's DiseaseNew research finds individuals with high Omega-3 intakes have an increase in blood flow in the brain suggesting a link might exist between Omega-3 and Alzheimer’s Disease.

Over 160 randomly selected people participated in this trial.  These participants were taken from clinics and their brain function was studied using single photon emission computed tomography (SPECT).  SPECT measures blood perfusion in the brain.  128 regions of the brain were used to collect data on the correlation between Omega-3 blood levels as well as blood flow in the brain.  Resting-state scans were performed while participants were sitting in a dimly lit room with ambient noise and with their eyes open.  For on-task scans participants completed Continuous Performance Tests (CPTs) while the scans were performed.

Significant statistical relationships were found between EPA and DHA (Omega-3 Essential Fatty Acids)  levels in the blood and cerebral perfusion in various regions of the brain: areas known for memory encoding and retrieval (parahippocampal gyrus), areas for episodic memory, visuospatial processing, and aspects of consciousness (the right preuneus), and areas associated with bodily locomotion and posture (vermis subregion).

Researchers concluded that Omega-3 Essential Fatty Acids (EPA and DHA) may improve brain physiology which in turn leads to better cognitive reserves.

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Vitamins May Have Larger Role in Halting Brain Decline

Vitamin B is for BrainA new review claims folate and related B Vitamins play a role in slowing down brain function decline as well as playing a role in age-related depression.  These findings look at certain B Vitamins as being equally as successful in supporting the reduction in the risk of mental and cognitive disorders which occur with aging, as nutrients like Omega-3 Essential Fatty acids as well as polyphenols like Resveratrol.  Researchers believe these B Vitamins have the ability to improve the quality of life for the elderly.

Researchers concluded that folate and Vitamin B12 play essential roles in the long term management of dementia and age-related depression.  Inconsistencies of vitamin experiments coming from uncertain study design and methodology were identified by the research team.  B Vitamins and their role in supporting a healthier cognitive function in the aging process received more interest than B Vitamins and their role in age-related depression.

Over 46 million people worldwide experience some form of dementia and it is believed that this number will increase by over 65% by the year 2026.  Although the role of nutrients in supporting brain health is often underestimated nutrients are never fully discounted as being an effective means to aid in improving cognition in ageing.

Researchers are recommending that future studies use some form of imaging technology to confirm effective nutritional interventions.

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Lutein and Zeaxanthin Levels Linked to Better Cognitive Function

Lutein and Cognitive FunctionA new study has found that higher blood levels of Lutein and Zeaxanthin may be associated with improved memory, cognition and executive function.  Data from this study found higher Zeaxanthin levels were associated with increased processing speeds and higher levels of both Zeaxanthin and Lutein were associated with enriched scores for many cognitive measures.

Data from over 4,000 adults aged 50 and older was analyzed.  Researchers inferred that a good biological basis exists for hypothesizing that Lutein and Zeaxanthin may be neuroprotective due to their anti inflammatory cell signaling properties and due to their antioxidant properties.

A link between eye health and Lutein was established in 1994 when researchers found a link between the consumption of dark leafy vegetables (carotenoid rich foods) and a reduction in the incidence of age-related macular degeneration (AMD).  Additional studies now support the effects Lutein has on brain health.  Studies show that the carotenoids found in pediatric brain tissue is 60% Lutein yet only about 12% of the carotenoids found in the average diet contains Lutein.  Researchers have concluded that the brain has a preference for Lutein.

More studies are definitely needed.

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Vitamin A Status At Birth Linked to Long-Term Risk of Cognitive Impairment and Alzheimer’s

Cognitive FunctionA new study has found elderly individuals with low Vitamin A levels may be more at risk of developing Alzheimer’s disease along with lower brain functioning.  Additionally the study found the even a marginal Vitamin A deficiency at birth might affect long-term risk factors.

This new study was made up of findings from mouse models as well as human population data.  The population study revealed that 75% of those with either a significant or even mild Vitamin A deficiency had some cognitive impairment compared to 47% with normal Vitamin A levels that experienced cognitive impairment.  The research on mice confirmed this finding.  Even a mild Vitamin A deficiency during pregnancy or immediately after birth was associated with an increase in the production of amyloid-beta plaques which are associated with Alzheimer’s disease.  Researchers found that mice deprived of Vitamin A performed poorly on standardized tests of memory as well as learning as adults.  Mice that had Vitamin A withheld while they were in the womb but were given a normal diet after they were born had lower performance in general when compared to mice receiving adequate Vitamin A in the womb but were deprived Vitamin A after birth.  It was found that some reversal of decline could be reversed with adequate Vitamin A supplementation.  Researchers concluded that monitoring Vitamin A during infancy as well as during pregnancy and eliminating a prenatal Vitamin A deficiency may aid in halting Alzheimer’s disease development.

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Micronutrient Supplementation For Mothers Boosts Infant Cognitive Health

Infant CognitionA major follow up study has determined pregnant women should take more micronutrients besides iron and folic acid to increase the long-term cognitive development of their children.

The Supplementation with Multiple Micronutrients Intervention Trial (SUMMIT) lasted from 2001 – 2004.  Over 31,000 pregnant women participated in this study.  The study goals were to determine if more micronutrients during pregnancy were necessary to increasing long-term cognitive and brain development.  Half the study participants received iron and folic acid supplements (IFA) during their pregnancy and for 3 months after their babies were born.  The other half of the study participants received iron and folic acid in addition to other micronutrients like B6, zinc and iodine (MMN).

Positive effects of the MMN supplement group were seen in 487 children who were assessed for cognitive ability at the ages 3 – 5 years old.  After 10 years of age, researchers tested almost 3,000 children who were now between 9 and 12 years of age.  The MMN Group totaled 1,466 children and the IFA group had 1,413 children.  The goals of this second round of testing were to assess the long term effect of MMN supplementation on socio-emotional, cognitive and motor development in the children and to assess the effect of socio-environmental and biomedical determinants on these results.

Children born from women in the MMN group showed significant proficiency in general intellectual ability and procedural memory when compared with the children of the women in the IFA group. This is equivalent to cognitive development gained from an additional half a year of schooling.   In general the children born to mothers in the MMN group showed improvements in socio-emotional, fine motor and cognitive abilities when compared with the children of the other group.

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Omega-3’s Linked to Better Cognitive Function in Mildly Impaired Older People

Omega-3 and CognitionA new study finds daily supplementation with Omega-3 essential fatty acids may improve measures of cognitive function like perceptual speed and memory.

86 people with mild cognitive impairment (MCI) were randomly assigned to receive a placebo (olive oil) or an Omega-3 supplement (EPA 720 mg DHA 480 mg) daily for 6 months.  The average mean age of the participants was 71 years of age. Significant improvements in scores on Basic Cognitive Aptitude Tests (BCAT), which measure cognitive function, were seen in the group taking the Omega-3 essential fatty acid supplements.  Additionally significant improvements in working memory, space imagery efficiency and perceptual speed were seen in the Omega-3 group while no improvements were seen in recognition memory or mental arithmetic efficiency.  Men tended to see significant improvements in space imagery efficiency, working memory, and perceptual speed, while women saw significant improvements in space imagery and perceptual speed.  Both men and women saw significant improvements in BCAT scores compared to the placebo group.

Because the study group was small further research is needed.

Make sure your fish oil is molecularly distilled to remove potential toxins.  Also a Fish oil that is manufactured to comply with strict European standards will be free of heavy metals, PCB’s, dioxins, pesticides and other unwanted compounds.  An enteric coating will protect the Fish Oil  from the harsh environment of the stomach, and then  the softgel will better travel to the small intestine where it can be digested and its fatty acids released and absorbed into the body. This prevents a fishy aftertaste and odor, and is helpful to sensitive individuals.  Some products will use lemon oil to help with the digestion of the Fish Oil softgel without any fishy burps.

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Vitamin C and E Supplements May Protect Against Age-Related Brain Declines

Cognitive DeclineData from a recent study shows daily supplementation with Vitamin C and Vitamin E could reduce the risk of cognitive decline.

Data from over 5,000 seniors collected over a period of time (from 1991-2002) was analyzed.  Participants were all over 65 years of age.  Seniors who were supplementing with Vitamin E and/or Vitamin C had a statistically significant 40% reduction in all cause-dementia and a 42% reduction in Alzheimer’s disease (AD).  Compared to non vitamin users, participants who were supplementing with either Vitamin C or Vitamin E separately saw a 43% and 46% reduction in the risks of developing Alzheimer’s disease.  Additionally, the risk of developing cognitive impairment not dementia (CIND), were reduced by 31% in the seniors who supplemented with Vitamin C and 32% for seniors who supplemented with Vitamin E.

As we age there is a natural decline in brain function.  Mild cognitive impairment is considered a transitional state and small changes in mental abilities and memory coexist with normal functioning.  These declines in functions may often be a warning sign of dementia.  Dementia is a term that is used to describe many different brain disorders that all share a progressive loss of brain function.  It is believed that Oxidative stress may be a contributing factor to this process.

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