Articles by Lindsey Kay, MD
Neuroscience & Neurology | By June 17, 2008 | By Lindsey Kay, MD | 2 Comments
Using Infrared Light to Diagnosis Alzheimer’s
The definitive diagnosis of Alzheimer’s disease requires microscopic examination of brain tissue, something that cannot be performed safely in a living patient. Instead, physicians use a constellation of symptoms and patterns of progression, combined with exclusion of all other causes of dementia, to diagnosis patients with the disease. But there are many alternative causes of memory loss in the elderly that must be excluded in order to make the diagnosis of Alzheimer’s. Many of these have signs and symptoms that overlap, making it difficult to determine the correct diagnosis. Read more →
- Interactive Effects of Genetics on Depression
- Are You Depressed Because You’re Introverted?
- A Genetic Susceptibility to PTSD?
- Inflammatory Markers Altered in Depression and Suicide
- Multiple Sclerosis: Nature, Nurture, or Something Else?
- Runner’s High Revealed
It is well known that depression results from the combination of many different factors. Environmental effects, such as stressful life events, are a trigger in many patients for the development of major depressive disorder (MDD) and the milder disorder, dysthymia. It is also true that the same major stressors will not produce depressive symptoms in some, pointing to underlying risk factors that make some more susceptible to depression than others. Researchers have attempted to identify a single gene that can be linked to MDD, and while familial clustering of depressive disorders is a common finding, single-gene inheritance patterns are not seen. Instead, patterns suggested that several genes are involved in depression, and a recent research study demonstrated the interactive effects of these genes on the disease. Read more →
A study published in Psychological Science evaluated the link between happiness and personality traits in 973 twins. The authors found that happiness was heritable, and that it showed genetic linkage to certain personality traits. Those who were extroverted, open, agreeable and conscientious were more likely to be happy. Moreover, twins who exhibited similar personality traits had similar levels of happiness in a seemingly genetic pattern. Read more →
Post-traumatic stress disorder (PTSD) has been in the news a lot lately, primarily due to the prevalence of PTSD in Iraq war veterans. PTSD can occur following any severely stressful event, and recent research has shown that some individuals are genetically “at-risk” for its development.
A study of adult victims of childhood trauma compared the occurrence of PTSD and genetic variations in the FKBP5 gene, which is related to stress response. Not surprisingly, the study found that both abusive and nonabusive childhood traumatic events were linked to the development of PTSD. In addition, four specific variations of the FKBP5 gene significantly increased the risk of PTSD in child abuse victims. This effect was still present after controlling for depression severity, age, sex, and the occurrence of other kinds of trauma. Read more →
Inflammation is a hot topic in medical research, with studies showing links to heart disease, dementia and longevity. Depression is a relatively new addition to the list of inflammation-associated diseases, with two recent publications demonstrating altered levels of inflammatory molecules in the blood of patients with major depressive disorder (MDD). Both studies evaluated the levels of cytokines in patient’s blood. Read more →
Multiple sclerosis (MS) is a poorly understood disease that affects patients at an early age and, usually, lasts a lifetime. Factors that predispose to the development of MS include genetics, geographic location, sex and birth month, suggesting an interesting nature-nurture interaction in this disease process.
The increased rate of MS at high latitudes has been demonstrated in many studies, with those living in the Northern United States and Canada at a higher risk than those closer to the equator. This geographical influence is most commonly linked to the decreased (UV) radiation in these locations. UV light is a requirement for the production of vitamin D, and it is this effect that is most commonly thought to increase the risk of MS. Read more →
Most long distance runners have experienced the “runner’s high” — a feeling of enhanced mood and relaxation following a strenuous run. Its presence is unmistakable, but also hard to explain, and even harder to scientifically prove. Recently, researchers used high-tech brain imaging to demonstrate changes in brain activity that correlate with this phenomenon. Perhaps more importantly, this runner’s high is also linked to decreased pain perception, providing a potential therapeutic mechanism for sufferers of chronic pain. Read more →
Saturday, March 20, 2010
- Religion - A "Natural" Phenomenon?
- Psychotropics and Youth, Part 1 - The Five Myths
- How Culture Shapes Our Mind and Brain
- Sex, Violence and The Male Warrior Hypothesis
- The Secret to Good Health – Listen to the Data
- If Herbal Medicine is Medicine, Shouldn't it be Treated as Such?
- Neurology, Neurosurgery, and Neuroscience Conferences for 2010
- Too Much Information?
- "I Feel Your Pain" - The Neural Basis of Empathy
- Income Inequality and Health Outcomes
- The Evolution of Depression
- Journal Retracts Autism Research
- Speaking in Tongues - A Neural Snapshot
- Post-Partum Psychosis - Rare but Real
- Is Your Doctor Happy or Burnt-Out?
- Ginkgo Biloba Ineffective... Again
- Worried Well on the Web
- Psychotropics and Youth, Part 2 - The Solutions
- Why Some Human Brains Become Leaders, While Others Followers?
- Postoperative Cognitive Dysfunction
- Let the Matches Begin!
- My Nephew and his Brain, Part 4 – Their Life Today
- My Nephew and his Brain, Part 3 – Try to Work Out their Troubles
- My Nephew and his Brain, Part 2 – Revealed to be Complicated
- My Nephew and his Brain, Part 1 – Introduction
- Deep Brain Stimulation – A New Frontier in Psychiatry
- Psychotropics and Youth, Part 3 – Equip Teachers with Prescription Pads?
- Why Some Human Brains Become Leaders, While Others Followers?
- Brain Blogger Finalist for Two 2010 Research Blogging Awards in Neuroscience and Psychology
- Tall Tales of Diabetic Amputations
- Psychotropics and Youth, Part 2 – The Solutions
- Brain Blogging, Forty-Ninth Edition
- How Your Brain Groups Words
- The Child Brain and the Playing Teacher
- You Have a Right to Choose if we Agree
- Measuring Quality in Primary Care
- Matchmaker, Matchmaker Make Me A Match – The NRMP Main Residency Match
- Psychotropics and Youth, Part 1 – The Five Myths
- When It Comes to Aging, Size Matters
- “I Feel Your Pain” – The Neural Basis of Empathy
- yea ur right lol lughter the best medicine i cnt do without it in a day!!!!!!!!!...
- Very touching story. My heart goes out to your family. Seizures are tough. And ...
- Thank you for sharing your nephew's story. So hard on those who love him, but I...
- Congratulations to all who've matched! Although the results of NRMP Main Residen...
- It's been almost 25 years since my son suffered a TBI in an accident. He was onl...
- I tend to agree with the teachers.But a teacher can only keep a record about the...
- Very interesting article, the 5th paragraph gets a little biased...but I still e...
- Dear Dan,There is certainly much clinical interest in this field. ClinicalTr...
- I recently commented on a sciencedaily.com article reporting success with TRD an...
- I have family members who are teachers. After sharing this article with them, th...
- It is great that people are challenging the use of this medication. As, a societ...
- I agree with the stand of the teachers and their children's that more than half ...
- I think that there’s also a social aspect to it. If you grow up in an area where...
- I have had epilepsy since I was 9 and am now 42. I have tried about every med. o...
- In this text is a serious error. Brain areas are found that contain religious ex...
- It's amazing how the brain works....
- Organ transplant for unavoidable patients have been around for quite some time a...
- Diet plays a major role in having diabetes. In today's world, people are finding...
- Interesting... I think that there's also a social aspect to it. If you grow up i...
- I think the article is actually describing a normal human being. Leadership tra...

