Author Archives: yryu

Fish Oil: Possible Solution for Brain Recovery

Brain is like central command post that controls and commands our body. Without the command post (brain) every part of the body will be nonfunctional. For example, severe brain injury like, traumatic brain injury, is lethal and barely recoverable. However, there seems to be a solution for treating traumatic brain injury. The solution is Omega-3 fish oil.

Image from: http://www.cnn.com/2012/10/19/health/fish-oil-brain-injuries/index.html?iref=allsearch
Courtesy: Ghassemi Family

In March 2010, Bobby Ghassemi 17-year-old student got sever traumatic brain injury due to a car accident. He was diagnosed with Glasgow Coma Score of 3, meaning dead (a brick of wood is diagnosed with Glasgow Coma Score of 3). Bobby had so much bleeding within the brain that pressure has to be released by taking portion of his skull. Doctors believed that full brain recovery was unlikely or rather impossible. But Bobby’s father, Peter Ghassemi, was looking for a way out and found out that fish oil could help his son.

Fish Oil and Traumatic Brain Injury (video)

Michael Lewis, Army colonel and a doctor, suggested to Ghassemi that fish oil could help recovering damaged brains. Lewis claimed that 30% of the brain is composed of Omega-3 and by saturating the brain with Omega-3 could help to reconstruct the brain.  Problem with this theory is that there was no research that support it is a good treatment except the case of Randal McCloy. McCloy was only survivor of mine disaster in West Virginia in 2006. McCloy’s brain was severely damaged due to high intake of carbon monoxide and methane. McCloy’s neurosurgeon, Dr. Julian Bailes, injected large doses of Omega-3 into McCloy resulting almost full recovery of the brain.

Image from: http://www.cnn.com/2012/09/11/health/health-fish-oil/index.html?iref=allsearch
Courtesy: Getty Images

So what does Omega-3 does to the brain? Hee-Young Kim et al. claims that Omega-3 fats helps to accumulate fatty acids around the neurons to prevent cell death and further help to reconnect damaged neurons. In addition, based on the animal testing, the fish oil can help to reduce neural inflammation from concussions. Animals that received fish oils after concussion showed 98% recovery.

Drawback from this treatment is that there are little human testing done so far and recovery of Ghassemi and McCloy is just only two cases to prove or to say Omega-3 is effective in treating patients with traumatic brain injury. However, there are no  clear treatments or drugs that can cure traumatic brain injury like Omega-3 did. Therefore, Omega-3 might be the best solution for treating the patients with brain injury at the moment. Further research on Omega-3 effectiveness on brain injury could explain why miracle recovery of both Ghassemi and McCloy has happened.

By: Young Ryu

How Obesity Reduces Cognitive Skills

Image from: CNN
http://thechart.blogs.cnn.com/2012/10/18/your-brain-on-food-obesity-fasting-and-addiction/?hpt=he_t4

How to live healthy is common interest of all people. However, obesity has limited the movement of living healthy. Due to human tendency to crave sugar and abundant food supply in 21st century, people are getting fat. For example, in the United States and Canada has adult obesity rate is 35.7% and 17% respectively. In the case of the United State, obesity is very serious problem since one third of its entire population is obese. As it is well known, obesity is the main cause of diseases such as heart diseases and high blood pressure levels. However, new study reports that obesity could also impact in lowering brain function. Therefore, this blog is created to illustrate how obesity affects brain function.

Future Obesity Rate in the U.S. (video link)

Researchers at the University of Turku and Aalto University explained how obesity alters brain function. Mid-region of the brain called striatum uses glucose for its metabolism and commands the body to obtain sugars. In obese individuals, striatum is over-activated causing excessive intake of sugars. Meanwhile, increase in activity of striatum decrease prefrontal cortex (front part of brain) function where cognitive function is controlled. Professor Lauri Nummenmma from University of Turku explains cognitive function is suppressed by the overly activated striatum and preventing the body from controlling amount of sugar intake.

Picture retrieved from:
http://www.impactlab.net/2012/10/17/how-diet-affects-brain-function-revealed-in-studies/

Timothy Verstynen reported at the Society for Neuroscience that obesity reduces cognitive function. Verstynen gathered 29 participants with different body mass ranging from normal weight to obese and asked them to solve questions. Based on the brain image of all participants in the study, the brain activity was observed greater in obese group than the lean group to solve the same questions. What this indicates is that obese participants are inefficiently solving a question. Therefore, obese population has more difficult time in solving complex tasks than those of lean population.

Video: How Obesity Affects Brain function in teens (specific case)

The common dieting method among the people is to fast. However, the result is not promising. Tony Goldstone claims that skipping breakfast could result gaining of weight. This is because skipping breakfast activates specific brain region called orbitofrontal cortex, located at the frontal side of the brain. Upon activation, it commands the body to eat high calorie foods. However, having a breakfast lowers the activation and prevents the body from eating high calorie foods. In general, obese population has their orbitofrontal cortex overly activated, craving them for higher calorie foods and preventing from losing weight. Therefore, obesity not only cause gaining of weight but also manipulates the normal brain function.

In conclusion, it is found that being obese does not only cause a heart disease but also reduces the brain function. For example, obese individuals are less efficient in solving a problem than the lean individuals. Therefore, it is very important to have healthy and low calorie foods to keep both brain and body in a good shape.

By Young Ryu

 

Another Pyschological War Trobules Veterans

Early this year, tragic event happened in Kandahar, Afghanistan. The United State army Staff Sgt. Robert Bales stormed a small town at night and slaughtered 17 men, women, and children. Speculation swilled that post-traumatic stress disorder (PTSD), a psychological sickness that is caused by traumatic events, triggered Bales to execute such violent behavior. However, there are controversy arguments that not all PTSD patients show such extreme violent behavior as Bales. Therefore, this blog is created to assess how stress disorder affects daily lives of combat experienced veterans.

Under attack in Afghanistan

Picture from: GORAN TOMASEVIC/REUTERS
http://www2.macleans.ca/?attachment_id=25231

Concern is raised within U.S. military that soldiers who served in Iraq and Afghanistan may suffer from extreme stress like PTSD. This is because these soldiers are exposed to life-threatening events like terrorist attack and improvised explosive device (IED) that provokes development of PTSD. To understand the severity of mental health of the returning veterans from Iraq and Afghanistan, four U.S. combat infantry units (three Army unit and one Marine Corps unit) were studied. Sample of 2,530 armies were survey before deployment to Iraq and completely different sample of 3,671 military personnel was surveyed after their duty. The study showed that soldiers from Iraq were diagnosed more with PTSD than those from Afghanistan. About 15.6-17.1% of  veterans from Iraq were diagnosed with PTSD; meanwhile only 11.2% of veterans from Afghanistan were diagnosed. Reason for such difference can be explained by looking at the casualties of U.S. troops in these two countries. Statistic shows that in year 2004, U.S. had 849 casualties in Iraq while only 52 casualties were reported in Afghanistan. Such difference in casualty numbers explains the relationship between combat experience and the development of PTSD. Therefore, we can claim that soldiers with more combat experience would develop more PTSD.

Image from: CNN
http://www.cnn.com/2012/09/29/health/delayed-veterans-benefits/index.html?hpt=hp_c1

To what extend the stress affect a person’s life can be understood by looking at the life of veteran Mike Rioux. Rioux was deployed to Afghanistan in 2010 and faced numerous life-threatening combat situations that led him to develop PTSD. Due to PTSD, Rioux suffers from headaches, insomnia and nightmares and he have extreme anxiousness that makes him difficult to comprehending questions. So based on Rioux’s case stress could make one’s life very miserable.

Recent research by Guido van Wingen states that human has the ability to recover from extensive stresses under sufficient amount of time. Wingen studied 33 Netherland soldiers who were deployed to Afghanistan and found that these soldiers had impairment in cognitive functions. But after 1.5 years under non-combat situation their cognitive function fully recovered. The drawback from this study is that sample size was relatively small to represent the true population. In addition, the study was based on Netherland soldiers so it cannot represent other NATO forces in Afghanistan.

In conclusion, many soldiers who served in Afghanistan or Iraq suffer from extreme stresses after their deployment. Such stresses promote PTSD or other psychological diseases that ruins veteran’s lives. However, human are capable of overcoming stresses when given sufficient time for recover.

By Young Ryu