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All posts; Tags Include "Aging"

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  • April 3, 2017
  • 10:23 AM
  • 277 views

Financial Scam Vulnerability: Brain Risk Factors

by William Yates, M.D. in Brain Posts

It is always frustrating when you hear about a financial scam that has target a vulnerable population like the elderly population.Elderly individuals may be targeted for a variety of reasons. First, they often have financial resources. Second, they may be a generally more trustworthy group increasing risk for falling for a scam. Third, elderly may suffer from some age-related brain changes that impair cognition and judgment.A recent research study suggests specific brain deficits may increase vu........ Read more »

  • March 26, 2017
  • 11:14 AM
  • 115 views

Multilingual novelties

by Madalena Cruz-Ferreira in Being Multilingual

P { margin-bottom: 0.08in; } Research on multilingualism has mushroomed over the past 50 years or so, which must be a good thing. Although some publications do take multilingual norms as multilingual norms, most research has proceeded through the bias of monolingual standards, which is not so good for the obvious reason that multilinguals aren’t monolinguals. Equally biased is the academic and media hype spawned by the flurry of interest in current multilingualism, which risks spawning, in t........ Read more »

Laes, C. (2013) Polyglots in Roman Antiquity. Writing Socio-Cultural History Based on Anecdotes. Literatura 55(3). info:/

Schendl, H. (2015) Code-switching in early English literature. Language and Literature, 24(3), 233-248. DOI: 10.1177/0963947015585245  

  • March 25, 2017
  • 12:40 PM
  • 247 views

Sign-speech multilinguals

by Madalena Cruz-Ferreira in Being Multilingual

P { margin-bottom: 0.08in; } Opinions and decisions about multilingualism involving sign languages suffer from the same resilient fantasies which have plagued multilingualism in general over the past 100 years or so. With sign languages, however, there’s the aggravating factor that fantasies about them join the chorus. Only the other week, for example, I had a couple of (speech-speech) multilingual friends wonder why all the fuss about sign languages among linguists like me, since these lang........ Read more »

Alibali, M., Young, A., Crooks, N., Yeo, A., Wolfgram, M., Ledesma, I., Nathan, M., Breckinridge Church, R., & Knuth, E. (2013) Students learn more when their teacher has learned to gesture effectively. Gesture, 13(2), 210-233. DOI: 10.1075/gest.13.2.05ali  

  • March 13, 2017
  • 11:38 AM
  • 303 views

Earliest Brain Changes in Alzheimer's Disease

by William Yates, M.D. in Brain Posts

Amyloid brain plaques are well-known pathological changes associated with Alzheimer's disease. Changes preceding amyloid plaque build up are less well studied and understood. Some of this relates to limitations to current imaging technology.Klementieva and colleagues from Sweden and Spain recently published an important reserach topic in this area.Their studied used a rat model of Alzheimer's disease and imaging techniques that included infrared microspectroscopy and gel electrophoresis.The........ Read more »

Klementieva, O., Willén, K., Martinsson, I., Israelsson, B., Engdahl, A., Cladera, J., Uvdal, P., & Gouras, G. (2017) Pre-plaque conformational changes in Alzheimer’s disease-linked Aβ and APP. Nature Communications, 14726. DOI: 10.1038/ncomms14726  

  • March 7, 2017
  • 11:01 AM
  • 309 views

Can Older Drivers Benefit From Training?

by William Yates, M.D. in Brain Posts

Older drivers are over-represented in motor-vehicle driving accidents.The lowest rate of fatal vehicle crashes per 100 million miles driven is found in drivers between the ages of 30-69 years of age.Fatal vehicle driving rates per miles driven is 4 to 5 times higher in drivers over 80 years of age. (IIHS.org data)So can older drivers be trained or educated to improve their safety (and the safety o those around them)?A recent randomized controlled trial examined an educational intervention in dri........ Read more »

  • January 23, 2017
  • 10:59 AM
  • 388 views

Processing Speed Cognition in Elderly: Clinical Trial

by William Yates, M.D. in Brain Posts

Processing speed declines significantly with age and contributes to impairment and disability in old age.There is little known about whether age-related processing speed decline can be slowed with interventionA recent clinical trial by a Japanese group targeted processing speed training in a group of 72 elderly.This study found significant effects for a daily 15 minute processing speed training game over 4 weeks.In contrast to a control group, the intervention group found specific improvement in........ Read more »

  • November 2, 2016
  • 11:09 AM
  • 490 views

Weight Training Boosts Brain Size and Performance

by William Yates, M.D. in Brain Posts

Aerobic exercise increases brain blood flow and has demonstrated beneficial effects on cognition.The effects of weight training exercise on the brain is less frequently studied. Hence, we know little about the effect and mechanism of weight training on brain function and performance.A recent study provides some needed insight on this topic.A study by C Suo and colleagues from Australia examined the effects of resistance training and cognitive skills training on brain structure and function.The k........ Read more »

Suo C, Singh MF, Gates N, Wen W, Sachdev P, Brodaty H, Saigal N, Wilson GC, Meiklejohn J, Singh N.... (2016) Therapeutically relevant structural and functional mechanisms triggered by physical and cognitive exercise. Molecular psychiatry, 21(11), 1645. PMID: 27090304  

  • October 14, 2016
  • 06:20 AM
  • 656 views

Forgetting Earth, forgetting Mars: Dementia, pollution, and space travel

by gdw in FictionalFieldwork

Forgetting Earth Dementia. Few words inspire greater fear in those of us who value (quasi-?) independent thought. The term ‘dementia’ encompasses various brain disorders that all share some scary traits: general decline in cognitive function, decreased ability to speak, and in later stages, being unable to take care of oneself. Unfortunately, as human lifespan increases […]... Read more »

Killin LO, Starr JM, Shiue IJ, & Russ TC. (2016) Environmental risk factors for dementia: a systematic review. BMC geriatrics, 16(1), 175. PMID: 27729011  

Parihar VK, Allen BD, Caressi C, Kwok S, Chu E, Tran KK, Chmielewski NN, Giedzinski E, Acharya MM, Britten RA.... (2016) Cosmic radiation exposure and persistent cognitive dysfunction. Scientific reports, 34774. PMID: 27721383  

  • October 10, 2016
  • 11:54 AM
  • 522 views

Alzheimer's Disease: Atrophy Pattern and Symptoms

by William Yates, M.D. in Brain Posts

Memory impairment is a key symptom of Alzheimer's dementia common to patients with the condition.However, additional cognitive and behavioral symptoms vary between patients with a clinical and pathological diagnosis of Alzheimer's disease.A key area of research is focused on understanding factors that contribute to symptom variability in Alzheimer's disease.A team of researchers from Singapore and Harvard Medical School recently published an important study on this topic.They analyzed structural........ Read more »

Zhang X, Mormino EC, Sun N, Sperling RA, Sabuncu MR, Yeo BT, & Alzheimer’s Disease Neuroimaging Initiative. (2016) Bayesian model reveals latent atrophy factors with dissociable cognitive trajectories in Alzheimer's disease. Proceedings of the National Academy of Sciences of the United States of America. PMID: 27702899  

  • October 3, 2016
  • 10:56 AM
  • 556 views

Robin Williams and Lewy Body Disease

by William Yates, M.D. in Brain Posts

In a post last week, I highlighted a recent study examining clinical issues in the diagnosis of Lewy body dementia (LBD).This study examined differentiating clinical and neuropsychological factors between LBD, Alzheimer's dementia and Parkinson's disease.You can access this post by clicking HERE.This topic received significant attention following the description of comedian Robin Williams' last years by his wife in the journal Neurology.Robin Williams suffered from LBD and like many, his diagnos........ Read more »

Williams SS. (2016) The terrorist inside my husband's brain. Neurology, 87(13), 1308-1311. info:/

  • September 28, 2016
  • 11:10 AM
  • 576 views

Lewy Body Versus Alzheimer's Dementias and Parkinson's

by William Yates, M.D. in Brain Posts

One clinical challenge is making an accurate diagnosis in patients with dementia.Alzheimer's disease is typically the predominant diagnosis in dementia. However a significant number of patients will present with dementia due to Lewy Body disease, Parkinson's dementia,  frontotemporal dementia or vascular dementia.A recent study helps clinicians to distinguish Lewy Body  from Alzheimer's dementia and Parkinson's disease.Douglas Scharre and collegues from Ohio State University conducted ........ Read more »

Scharre, D., Chang, S., Nagaraja, H., Park, A., Adeli, A., Agrawal, P., Kloos, A., Kegelmeyer, D., Linder, S., Fritz, N.... (2016) Paired Studies Comparing Clinical Profiles of Lewy Body Dementia with Alzheimer’s and Parkinson’s Diseases. Journal of Alzheimer's Disease, 1-10. DOI: 10.3233/JAD-160384  

  • September 16, 2016
  • 10:16 AM
  • 586 views

The Brain in Super Agers

by William Yates, M.D. in Brain Posts

My Twitter post on a recently published study of brain structure in a group of high performing older adults received quite a bit of attention (see below).Felicia Sun and colleagues at Massachusetts General Hospital and Harvard Medical School selected an interesting research design.A group of elderly subjects between the ages of 60 and 80 years were identified as showing "superaging". This was defined as scoring like young adults on two neuropsychological tests: The Long Delay Free Recall measure........ Read more »

Sun FW, Stepanovic MR, Andreano J, Barrett LF, Touroutoglou A, & Dickerson BC. (2016) Youthful Brains in Older Adults: Preserved Neuroanatomy in the Default Mode and Salience Networks Contributes to Youthful Memory in Superaging. The Journal of neuroscience : the official journal of the Society for Neuroscience, 36(37), 9659-9668. PMID: 27629716  

  • August 29, 2016
  • 12:08 PM
  • 493 views

Mediterranean Diet and Cognition

by William Yates, M.D. in Brain Posts

The evidence for a beneficial effect of a Mediterranean style diet (MedDiet) on brain health grows on a regular basis.For those interested in a good summary of the effects of the MedDiet on cognition, I recommend reading the free full text review recently published in Frontiers in Neuroscience.In this review, Roy Hardman and colleagues searched for research studies on cognition and the Mediterranean diet published between 2000 and 2015.A figure in the review proposed several mechanisms where com........ Read more »

  • August 23, 2016
  • 10:36 AM
  • 631 views

The Brain: Red Meat and Mediterranean Diet

by William Yates, M.D. in Brain Posts

Entorhinal Cortex Highlighted in BluePrevious posts in this blog have highlighted some the research related to links between brain health and elements of the Mediterranean diet.I want to inform readers of a new important research study from the Mayo Clinic.In this study, researchers completed brain cortical thickness analyses on 672 cognitively normal adults. It is generally accepted that greater cortical thickness relates to improved cognitive performance.The participants completed an extensive........ Read more »

Staubo SC, Aakre JA, Vemuri P, Syrjanen JA, Mielke MM, Geda YE, Kremers WK, Machulda MM, Knopman DS, Petersen RC.... (2016) Mediterranean diet, micronutrients and macronutrients, and MRI measures of cortical thickness. Alzheimer's . PMID: 27461490  

  • July 12, 2016
  • 11:36 AM
  • 521 views

Dextromethorphan for Alzheimer's Disease Agitation

by William Yates, M.D. in Brain Posts

In my last post I summarized a review of the pharmacology of the drug dextromethorphan.This drug is receiving significant attention for disorders in neuroscience medicine. A phase 2 clinical trial of dextromethorphan-quinidine (DM-Q) was published last fall in JAMA.Here are the key design and results from this study:Subjects: 220 subjects with a diagnosis of probable Alzheimer's disease with clinically significant agitation.Randomization Design: This was a five week trial of 3:4 random........ Read more »

Cummings JL, Lyketsos CG, Peskind ER, Porsteinsson AP, Mintzer JE, Scharre DW, De La Gandara JE, Agronin M, Davis CS, Nguyen U.... (2015) Effect of Dextromethorphan-Quinidine on Agitation in Patients With Alzheimer Disease Dementia: A Randomized Clinical Trial. JAMA, 314(12), 1242-54. PMID: 26393847  

  • July 11, 2016
  • 11:41 AM
  • 641 views

When Laughing Isn't Funny

by William Yates, M.D. in Brain Posts

Inappropriate uncontrollable laughing or crying is common in many neuroscience medicine disorders including after traumatic brain injury or stroke. It can be socially embarrassing and restrict opportunities for social interaction.This loss of control over emotional responses is known by the term pseudobulbar affect or PBA. Until recently, few therapeutic options were available to treat this condition. Now a relatively new drug Nuedexta uses a combination of dextromethorphan and quinide to treat ........ Read more »

  • June 1, 2016
  • 12:35 PM
  • 608 views

Pain Prevalence in Dementia

by William Yates, M.D. in Brain Posts

The development of speech and language impairment in dementia presents barriers in many clinical domains.One important clinical domain is assessment and management of pain. Dementia may preclude spontaneous or interview-elicited pain reporting.A report today in MedicalXpress noted reduced reporting of pain in patients with diabetes and cognitive impairment.I was able to locate one free full-text manuscript reviewing the prevalence of pain in various types of dementias. This literature review fou........ Read more »

van Kooten J, Binnekade TT, van der Wouden JC, Stek ML, Scherder EJ, Husebø BS, Smalbrugge M, & Hertogh CM. (2016) A Review of Pain Prevalence in Alzheimer's, Vascular, Frontotemporal and Lewy Body Dementias. Dementia and geriatric cognitive disorders, 41(3-4), 220-32. PMID: 27160163  

  • May 25, 2016
  • 09:00 AM
  • 1,000 views

Are our gut bacteria the key to immortality?

by gdw in FictionalFieldwork

The fight against aging Ever since the ancient Sumerians, men has sought eternal life. We still do. Anti-aging science has become quite an industry. As we dive deeper and deeper into our biological foundations, we’re learning more and more about how and why we age. A lot of mysteries remain, but there’s still talk about […]... Read more »

De Winter, G. (2014) Aging as Disease. Medicine, Health Care and Philosophy, 18(2), 237-243. DOI: 10.1007/s11019-014-9600-y  

Biagi E, Franceschi C, Rampelli S, Severgnini M, Ostan R, Turroni S, Consolandi C, Quercia S, Scurti M, Monti D.... (2016) Gut Microbiota and Extreme Longevity. Current biology : CB. PMID: 27185560  

  • May 24, 2016
  • 10:44 AM
  • 611 views

Does Flu Vaccination Reduce Dementia Risk?

by William Yates, M.D. in Brain Posts

In my daily review of neuroscience news I ran across an article flu vaccination and dementia risk in heart failure.This study was reported at the 3rd World Congress on Acute Heart Failure by Dr. Ju-Chi Liu from Taipei Medical University.So how might influenza vaccination be related to dementia risk?  We do know acute influenza infection reaches the brain causing headache and increasing brain inflammation, at least temporarily. We also know brain inflammation may be involved in the mechanism........ Read more »

  • May 17, 2016
  • 02:35 PM
  • 562 views

Nurses Frequently Attending Church Live Longer

by William Yates, M.D. in Brain Posts

The Harvard-based Nurses' Health Study has been a remarkably productive longitudinal health study.My wife has been a subject in this study and frequently completes interval questionnaires regarding her health status.A recent publication looked at the relationship between religious service attendance and mortality in the Nurses's Health Study cohort.This manuscript tried to provide a more valid look at the relationship between religiosity/spirituality and health. Previous studies have found a lin........ Read more »

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