Study Finds Link Between Gut Microbiota, Sleep Quality and Cognitive Flexibility

Sleep and ProbioticsAccording to a new study, poor sleep quality was linked with composition of the gut microbiome and cognitive flexibility in healthy older adults.  Low amounts of bacteria in the phyla Verrucomicrobia and Lentisphaerae, were associated with poor sleep quality as well as performance on specific cognitive tests.

Stool samples were provided by study participants.  Data on sleep quality using the Pittsburgh Sleep Quality Index were also given by participants.  Cognitive flexibility was assessed through the completion of tests like the Stroop Color Word Test.  Results showed that when participants experienced better sleep both higher proportions of Verrucomicrobia and Lentisphaerae were present and improvements were seen in better cognitive flexibility.

The bidirectional interaction between the central nervous system and the gastrointestinal tract which is called the gut-brain axis has been increasingly gaining attention from both consumers as well as scientists.  Research links the microflora found in the digestive system to many markers of health including reduced anxiety levels, depression and overall general mood.  Scientific evidence shows partial sleep deprivation may change the gut microbiota.  Also seen in scientific literature is dysbiosis, a microbial imbalance, caused by shift work and jet lag which may actually promote glucose intolerance and obesity.

A 2014 survey by Datamonitor Consumer ranked insomnia as the fourth most relevant health issue experienced by Americans by percentage after stress, tiredness and fatigue, and allergies.  Middle aged women were the most worried about insomnia.

ASK US.  WE KNOW.  NOBODY KNOWS NUTRITION LIKE WE DO.  NOBODY !

http://naturesvitaminsonline.com

http://earthwiself.com

 

Advertisements

Magnesium Status and Dementia: Is There a Link ?

Magnesium and DementiaA new study published in Neurology, shows people with either low or high blood levels of Magnesium may have a higher risk of developing dementia.

Approximately 9,500 individuals participated in this prospective study.  Participants with an average age of 65 who did not have dementia were followed for an average of 8 years.  Serum Magnesium levels were measured at the start of the study.  Results were adjusted for variables like alcohol intake, body mass index, smoking status and kidney function, which may affect dementia risks and Magnesium levels.  Participants were divided into quintiles based on their serum Magnesium levels.

During this follow up period, over 800 individuals developed dementia.  Over 650 of these individuals were diagnosed with Alzheimer’s Disease. The incidence of dementia was found to be 30% higher in both the lowest blood Magnesium groups and the highest blood Magnesium groups.  Since this was an observational study only, no causality could be determined from the study outcomes.

There was however a few limitations on the way the study was set up.  First, Magnesium levels were only taken at the onset of the study, so changes in these blood levels may have occurred during the follow up period.  Second, blood levels of Magnesium may not be a reliable measure of total body Magnesium, meaning a person can have a normal serum Magnesium level and still have a Magnesium deficiency.  These limitations confirm that further research is needed.

The National Institute of Health (NIH) lists Magnesium as being involved in over 300 enzymatic processes in the body, such as helping to maintain normal nerve and muscle functions, keeping our bones strong as well as supporting a healthier immune response.  This important mineral is also necessary for supporting healthy blood pressure and blood sugar management.  70% – 80% of the population in the United States is not achieving the recommended intakes of daily Magnesium.

ASK US.  WE KNOW.  NOBODY KNOWS NUTRITION LIKE WE DO.  NOBODY !

http://naturesvitaminsonline.com

http://earthwiself.com

Lutein: For the Brain? Adults and Children May Benefit

Lutein and Brain for Adults and KidsLutein, a carotenoid, is usually associated with its benefits for ocular support.  This carotenoid is commonly found in both vegetables and fruits.  Research supports the role Lutein plays in the retina and its ability to decrease the risk of age related eye diseases.  Currently, Lutein is beginning to be recognized as support for the brain.

Lutein is taken up into brain tissue on a selective basis and is the main carotenoid in adult and infant brains.  Increased levels of Lutein correlate with improve cognitive function in older individuals.  Interestingly enough Lutein concentrations in the macula of the retina correspond with the levels of Lutein found in the brain tissue, and provides a non invasive means to measure Lutein in the brain.  This reinforces research showing increased macular pigment density in adults being significantly associated with improvements in cognitive performance.

Lutein also plays a role on cognition in early life.  Lutein is the preferred carotenoid taken up in cord blood and in breast milk.  Young brains show the ratio of Lutein to total carotenoids to be twice those found in adults which accounts for over half the concentration of total carotenoids.

The increased proportion of Lutein found in young brains suggests Lutein is needed during neural development.  Recent studies in children 8 – 10 years of age, shows macular pigment density was significantly related to academic performance and better memory.

Lutein’s role as an antioxidant and a natural anti-inflammatory may be why Lutein is so important.  In a randomized double blind placebo controlled study in healthy newborns supplementing Lutein significantly increased serum antioxidant activity providing a benefit when in brain tissue.

ASK US.  WE KNOW.  NOBODY KNOWS NUTRITION LIKE WE DO.  NOBODY !

http://naturesvitaminsonline.com

http://earthwiself.com

Lutein Levels Linked To A More Agile And “Youthful” Brain

Lutein and CognitionA new study finds a high intake of Lutein may slow down cognitive decline.

60 healthy adults between the ages of 25 and 45 participated in this study.  Carotenoid levels were assessed by measuring MPOD (Macular Pigment Optical Density), which is considered a trusted indicator of Lutein levels in the brain. Event related brain activity was used as a gauge of cognitive function and was recorded as the participants performed cognitive control testing.  Study results showed MPOD was related to both specific electrical brain activity and age during the decision making process, known as the P3 wave.  Younger adults showed a larger abundance of P3 than the older participants however, the older participants with higher MPOD levels displayed P3 measures equal to the younger participants.  Researchers concluded that Lutein appears to have a protective role in the brain since the study data indicated that participants with more Lutein were able to utilize more cognitive resources to finish their tasks.

Besides being beneficial to brain health, Lutein and Zeaxanthin have been shown to provide support for vision and vision diseases since Lutein appears to accumulate in both the brain and in the eyes.  The ability of Lutein in brain processing, memory, speed and processing is intriguing since Lutein cannot be manufactured on its own in the body.

Further study is warranted.

ASK US.  WE KNOW.  NOBODY KNOWS NUTRITION LIKE WE DO.  NOBODY !

http://naturesvitaminsonline.com

http://earthwiself.com

Folic Acid and Dementia: Supplementation Benefits Elderly People with Mild Cognitive Decline

Folic Acid and Cognitive ImpairmentElderly people with mild cognitive impairment saw significant improvements in both cognitive performance and reduced inflammation when supplementing with 400 mcg of Folic Acid daily for a period of 12 months.

Over 150 seniors with mild cognitive impairment were randomly assigned to two groups.  One group received daily Folic Acid supplementation (400 mcg) and the other group was a conventional-treatment group.

Significant improvements in cognitive function were seen in the group supplementing with Folic Acid.  Additionally a significant reduction in levels of inflammatory cytokines was seen.  Peripheral inflammatory cytokines appear to be biomarkers for identifying individuals who may be at a greater risk of developing Alzheimer’s disease or dementia. Researchers believe looking at the role of inflammatory markers at the onset of dementia, before full clinical dementia syndrome has developed, is essential.  Researchers concluded that folic acid has significant memory enhancing and anti-inflammatory properties.

ASK US.  WE KNOW.  NOBODY KNOWS NUTRITION LIKE WE DO.  NOBODY ! !

http://naturesvitaminsonline.com

http://earthwiself.com

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.

ASK US.  WE KNOW.  NOBODY KNOWS NUTRITION LIKE WE DO.  NOBODY !

http://naturesvitaminsonline.com

http://earthwiself.com

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.

ASK US.  WE KNOW.  NOBODY KNOWS NUTRITION LIKE WE DO.  NOBODY !

http://naturesvitaminsonline.com

http://earthwiself.com