Terrible ALS

 

Amylotrophic lateral sclerosis (ALS), also known as Lou Gehrig’s disease is a disease of the central nervous system.  It is a nasty progression of neurodegeneration where motor neurons are lost.  Over the course of the disease, control of muscles is slowly lost making it difficult to walk, breath, and swallow.   People live 3-5 years with the disease and eventually die having to use a ventilator and be fed by others.  Basically the endoplasmic reticulum does not have enough calcium which causes proteins to be folded incorrectly.  When misfolded proteins accumulate, it leads to ER stress.  The ER stress and misfolded proteins is not good for motor neurons and can kill them.  However it is still not known for sure whether or not misfolded proteins produce motor neuron degeneration or are a result of it. Research still needs to be done in this area.

            There is a fascinating apparent link between obesity (we have talked about this a lot in class) and ALS. As of now, not much is known as far as molecular pathways in obesity that could counteract the development or onset of ALS.  However, what is known is that there does seem to be a correlation between BMI/obesity and the duration of ALS as well as the likelihood of getting ALS.  A retroactive study of over 400 ALS patients was done comparing how long each person lived.  It was seen that people with a BMI of 30 to 35 (mildly clinically obese) lived the longest and people with a BMI of 25 to 30 (obese) lived second longest.  They lived longer than the malnourished and morbidly obese patients.  This could be linked to the fact that ALS patients lose more weight than from the expected loss of muscle mass as well as burn more calories than is expected with their lack of significant physical activity.

One other study compared the body mass index of people when they were young and then up to three decades later.  Of those who developed ALS, lower BMI at baseline was associated and with each 5 unit increase in the BMI, ALS rate decreased by 21%.  The lower rate of ALS in those people with obesity was noticeable.

So I leave you with yet another disease that is not know fully.  I is a nasty disease to have to live through.  Luckily research is being done and avenues that we didn’t even think could exist do.  This should show us that every option and link should be explored in hopes of a cure.

Autism Explored

 

You might have met someone with autism before.  Maybe they were in your family or at school.  If so, then you probably noticed the signs of autism.  Their behavior is different and in order to be diagnosed with autism, symptoms must be seen before the age of three.  Symptoms include impaired social interaction and communication (language) as well as impaired facial recognition, and poor socialization (won’t look you in the eyes).  These problems stem from issues with the development of the brain. 

            Much of it is due to genetics that causes synaptic dysfunction in many instances.  During development, the nerve cells in the brain do not connect and organize correctly.  Development of the brain is also dependent on the presence of essential fatty acids called PUFAs for short.  It is seen that these enhance neurite growth, promote neuronal survival, and modulate actions of neurotransmitters.  They are very important for the brain.  However, people with autism have less PUFAs and interestingly if a mother intakes them while pregnant, it improves the memory in their offspring. 

             I found it interesting that there are people who supposedly recover from autism.  A study was published just this year comparing optimal outcome (OO) individuals (people who had recovered from autism), people who developed normally (were never diagnosed with autism), and individuals who still had autism.  Being considered as optimal outcome meant that an individual had lost all symptoms of autism as well as the diagnosis.  Areas compared included language, facial recognition, socialization, communication, and autism symptoms.  The researchers found that optimal outcome and normally developing individuals had the same mean scores with the exception of three OO individuals who had lower than average scores.  These results support the possibility of people recovering from ASD and show that people with a positive diagnosis can return to an overall level of functioning within normal limits (http://onlinelibrary.wiley.com/doi/10.1111/jcpp.12037/pdf).  This shows how there can be hope of change for those who are born with autism.

Laying the Capstone to My College Experience

It’s December and the semester in Neurochemistry has come to an end, and it has been a class that has taught me so much not only about different topics such as Autism, Parkinson’s, Obesity and others, but how to critically evaluate scientific articles and apply them to my daily life. I really was not sure what to think about the class once I signed up. I knew it would be fun since I’ve always enjoyed neuroscience, but I was scared about how difficult it was going to be since I heard that all the class did was read scientific articles. I’ve never been the best at interpreting at articles, especially when it’s about detailed pathways involving multiple mechanisms and proteins. And honestly, at the beginning I struggled a lot keeping up with the readings. But as the class went on, I began to really feel comfortable dissecting each article our professor gave us. Surprisingly, by the end of the class, I was actually enjoying reading them! They were like giant puzzles that I had to piece together.
How the class was structured was a great way to learn about each topic. On Mondays we would talk about the article and what we did not understand. On Wednesdays we would “speed date” and talk about the topic that we chose to learn more in depth from Monday. Lastly, on Friday we would break into two groups and talk about the paper as a whole and what we learned, still had questions about, and most often, applied our knowledge to how the paper related to our society. It was an awesome way to only help myself learn through my own research, but combine my knowledge with others for a better understanding of the topic of that week.
My Capstone experience was everything and more than I asked for. However, our professor told us at the beginning of the semester that what we put into the class is what we will get out of it, and I do wish I recognized this earlier. For the first couple of articles we read for class I often stopped at just reading the information, whether I understood it or not. I hoped that I would hopefully just learn the things I did not understand in class, but when I should have asked questions, I did not. It wasn’t until a little later in the semester that I began to delve deeper into the article and the internet to help answer some of my questions, and also ask more questions in class. As I did this, I began to learn more and get more out of each article each week. I’ve better learned that one should not stop with the question, but find the answer! Often the answer can be found, even if it has the word modulation in it.
My Capstone experience has taught me to think critically about all kinds of issues, and that there is not always a definitive answer. Sometimes the solution consists of many solutions, or that the right thing to do is much simpler than a complex series of medications targeting all kinds of different pathways. I’ve learned how I can help prevent Parkinson’s, Alzheimer’s, Diabetes, and more. And probably the most important thing I’ve learned is that nearly EVERYTHING is best in moderation.

Autism in a Nutshell

It was not until last year when I heard a student give a presentation on autism that I realized how complicated and broad the disorder was. Autism Spectrum Disorder is one of those disorders that seems to have such a variety of symptoms that it’s hard not to say that all of us have at least one or two of them. Some symptoms of autism include; difficulty with nonverbal behaviors, difficulty forming freidnships with peers, performs repetitive movements, develop an interest in objects or topic that are abnormal in intensity, detail or focus, and more. There is no real diagnostic test for autism, but rather a team of doctors who observe a person’s behaviors does the diagnosis. Famous people such as Tim Burton, Dan Aykroyd, and possibly Lewis Carrol and Mozart are said to have some form of Autism Spectrum Disorder. So sometimes autism does not show in the most severe of ways.
According to Autismspeaks.org the prevalence of autism around the world has been continuously growing and is now estimated that about 1 in 88 children are affected with the disorder. It is also the fastest-growing serious developmental disability in the U.S.
So how does autism occur? Well, most of the research done has shown that it is a genetic disorder. But there are some hints as to how we can help those with autistic tendencies at an early age since we are learning more and more about what effects it has on the brain. Autism is often associated with having an “unglued” brain. This saying is talking about how often those with autism are unable to form tight junctions between synapses, causes the important connections between neurons to be loose, or not connected at all. Cell adhesion is not a strong, and therefore there is less information being transferred across the brain. This usually happens in specific areas of the brain, which may cause certain symptoms such as social or behavioral problems. Also, there is evidence that those with autism have a deficiency of BDNF and altered polyunsaturated fatty acids, also known as PUFAs. BDNF is an important growth factor that helps with cell differentiation, cell growth, synaptic plasticity and cell health. PUFAs help upregulate BDNF in the brain, and when there is a decrease in PUFAs within the brain, this leads to a decrease in BDNF concentration.
Lastly, I think it is very interesting to note that often those with autism have very strong dietary needs. Often, those with autism have extreme food allergies, or are unable to eat many different foods. Children with autism are usually very picky eaters, and doctors often suggest a well-balanced and nutritional diet that has been carefully thought out in order to provide children with the right amount of nutrients while also not upsetting their stomach.
Since I learned that autism can be so easily diagnosed, and symptoms can be hardly recognizable yet still be enough for diagnosis, I have become fairly skeptical with how much it is being diagnosed. It is no surprise that there has been an increase in the prevalence of autism across the world. However, it is still important to recognize that this disorder is something we need to worry about. It is hard not to think that our high fat diet lifestyles may not be a possible cause for this disorder. And yes, it may be genetic, but there is still a lot about autism we are not sure about.

Obese Brains

 

Ohhhhhhhhh obesity…such a big topic in the world we live in right now.  It is usually discussed within the context of food and how people in our country overeat.  This is true.  Especially compared to other countries.  I am not so convinced that it has to do with not eating only things that say “low fat” or “low carb” on them.  I had the opportunity to live and study in France not too long ago and interestingly I only noticed maybe two people who would be pointed out as fat or obese in the United States.  During my time there, I ate normal bread, whole milk cheeses, and pastries made with fresh fruit.  I ate everything the French eat and they don’t get fat from it.  They eat small portions and walk everywhere.  So if it is as simple as that, why don’t people in America just snap out if it and reach a healthy weight?  Some answers may lie within the brain.

Overnution is seen to start people on paths that they may not even choose themselves and the article we read calls it a “biological trap”.  This can be begun by the way one’s mother ate while they were in the womb.  High fat and energy rich diets while a fetus is in the womb can cause their brain to develop with a predisposition towards this type of a diet.  Adults can also get stuck with a problem of obesity being in their brain.  Overnution puts stress on the cells of the brain, which can cause what is called oxidative stress.  This then can lead to learning impairment, decreased attention, memory, and locomotion as well as the increase and weight.  But this is the kicker.  This oxidative stress messes with control of food intake, which then forms one big circle.  It’s a vicious cycle.

After reading this news, I believe this research could lead to effective treatment/prevention of the effects of overnutrition.  I should think that drugs could be made that will effectively disrupt these pathways so this does not affect people.  My concern is with what seems to be the root of the problem: overeating.  I do not think it is doing people a service to simply prevent the negative effects of overeating while they keep doing so.  I just hope that a drug will not be discovered that keeps someone from getting obese while they still eat too much and have all the other problems associated it.  I do realize that there are conditions that some people are born with and cannot control that could lead to a higher propensity overeating and obesity.  Drugs helping them with that could be good.  I just think that the overeating issue should be dealt with just as much.  It is cheaper as well!  Does it really make sense to have a drug that keeps people alive longer by preventing/curing the bad effects of overeating while they still eat more than is enough for their bodies to function?  

One implication of this would be that doctors would not have to spend the time and money to treat the conditions associated obesity.  Although, people would still have to spend money on a drug, but that would probably be cheaper.  However would people still be spending money on excess food?  Also, I think treating/educating people about overeating would have a great effect on our society as a whole.  People would be more mindful and not waste money on excess or rather spend that money on quality food, which would be better for them.

Lithium does things?

 

What do you think of when you first hear the word lithium?  To be perfectly honest, before I read this article on lithium, the most that popped into my head was batteries (you know, the lithium ion kind), and maybe if I dug real deep I could remember hearing about lithium in relationship to psychology at one point in time.  Well, this article has really opened my eyes to how involved lithium really is in our own bodies.  As a simple monovalent cation that is the lightest of all metals, it sure can make a difference. 

            Usually people associate the use of lithium with the treatment of bipolar disease. What I found interesting about this is how little is know about its action.  Basically lithium is used as a shot in the dark.  It is difficult to know if it will work for someone so a doctor will just try it and see how it works on its own or with a combination of other drugs commonly used.  If it works, great, but if is doesn’t then on to the next drug.  It can also help the manic phase as well as the depressive phase of bipolar disease, but again, you just have to try it and see.

            Another observed effect of lithium is its neuroprotective properties.  One way it does this is through inositol which is used by G protein-coupled receptors.  Lithium prevents inositol from being recycled and this depletion induces autophagy which is the degradation of unnecessary or dysfunctional parts of the cell.  Another cool way that lithium protects the brain is by directly helping prevent cell death and by inhibiting proteins which cause cell death.  It does the first by inhibiting glutamate-induced, NMDA receptor-mediated apoptotic death.  This is done my long term treatment with lithium.  It does the second by downregulating pro-apoptotic proteins p53 and Bax.   These are just a couple of the things it is found to do.  It also is seen to promote survival pathways and molecules, and induce neurogenesis, which is when the brain repairs itself.

            These actions are quite interesting and exciting to think about. When you ingest a simple little ion, so many good things could be happening inside of you.  When our class was discussing this topic, the question arose, why isn’t everyone taking lithium?  The fact is, lithium has to be monitored carefully when ingested.  It can have some nasty side effect like vomiting, diarrhea, poor concentration, hair loss, and muscle weakness just to name of few.  When taken by someone, they need to get regular blood tests to make sure that they are not getting too much lithium.  Regardless, I still find its benefits to be interesting, and hopefully, you can now share more about lithium than you ever could before.

Drink your tea and watch your Iron

 

This topic has to do with Parkinson’s disease but you should still read this even if you do not care about Parkinson’s.  Why you may ask?  Well, you see our bodies really need iron.  It is very useful for accepting and donating electron and is essential in our central nervous systems.  It is needed for DNA synthesis, neurotransmission, myelination, oxygen transport, storage, and activation, mitochondrial electron transport, and metabolism.  The oxidative stress from high levels of iron in the body is related to other diseases as well including Alzheimer’s disease, Huntington disease, Friedreich ataxia, and ALS.  However, the role it plays in Parkinson’s disease is what we will focus on today.

Parkinson’s disease is an illness that affects the nervous system and thus, movements.  It also affects cognition.   What makes it worse, is that it is not curable yet.  This is a huge reason the public should care!  What is currently known, and I think is important for you to know, is that proteins in the brain that regulate iron are messed up with excess iron which can leave the brain vulnerable to oxidative stress.  This can lead to loss of neurons and to Parkinson’s disease.  The toxicity of this excess iron can be due to iron-containing molecules not functioning properly. 

There are drugs that can help with Parkinson’s disease that are iron chelators.  These protects against dopaminergic neurodegeneration induced by iron.  Also, people can go in for phlebotomy, which is the first treatment usually done.  This involves removal of approximately 500ml of blood each week to reduce serum ferritin.  Also, a fascinating inverse correlation with brain aging, dementia, and neurodegeneration has been noticed for plant-derived polyphenol flavonoids.   These have metal-chelating capacity and can be found interestingly in green tea. 

Parkinson’s disease does not sound like a fun disease to have.  It should be researched further so that people can be cured of it instead of simply treated for it.  However, in the meantime, make sure your body is using iron the right way.  You don’t want to have to get poked by a needle every week and pay for drugs!  Hopefully a cure will be found soon but in the meantime, drink your green tea!

What if I told you Diabetes will increase your risk of Alzheimer Disease?

 

Type 2 diabetes is a prevalent disease in America where the body has too much glucose in the blood system.  Many adults suffer from this and it results in insulin resistance.  This poses a huge problem for the body because insulin is essential.  It is needed to process the sugar that your body takes in.  Another little known role of insulin is the one it plays in the brain.  It plays a part in signaling in the brain and scientists have been noticing a possible link between type 2 diabetes mellitus and Alzheimer Disease.  In fact is appears to be a significant risk factor.  Alzheimer Disease is another disease that is on the rise and touches many families.  It is characterized by dementia and loss of brain function and memory.

            There is a lot of heavy science done to find the link.  It is all very complicated so I will make it easy for you and tell you about some of what is going on.  There are features of Alzheimer Disease that are seen a lot.  Among these are neurofibrillary tangles.  These can increase due to insulin resistance from type 2 diabetes.  When this is the case, neurodegeneration can occur which can lead to Alzheimer Disease.  Another feature of this disease is amyloid plaques.  These as well can be increased due to insulin resistance, and dementia and Alzheimer Disease can follow.

            America is famous for being obese as a country.  We have lots of fast food and many people resort to this because it is the easy and cheap option.  However a big problem we spoke about in our discussion of this topic was the ignorance of the public.  A very small number of people in the world know about the research that has found the connection between diabetes, something many obese people suffer from, and Alzheimer Disease.  Many people would not even believe you if you told them this.  However there is a link and this could be something that could change the way people think about what they put in their bodies.  But it is very difficult to educate the public.  People already know that there are many benefits to eating healthy but they still eat food that is bad for them.  People know that you can get diabetes from eating too much sugar, which is in so many of our foods yet they still eat and eat and eat.  What is going to change this?  Will the prospect of an increased risk of getting Alzheimer Disease and losing all memory and dying without knowing your own family’s faces be the tipping point? I wish we had the answer now.  We can only hope that people will soon get the picture and start looking for ways to take in what is good while refusing that which does them harm.

Marijuana and Endocannabinoids: More Research Needed

Cannabis sativa, more commonly called marijuana, and its use has long been a hotly debated topic all over the world. For the most part, the public has been ignorant about the potential it holds within and thus it has remained illegal in many countries for recreational use. While most of the population remains ignorant, lots of interesting research is being carried out.
This plant contains, at the very least, 400 chemical parts and 60 of those are in the cannabinoid class. With the onset of research done on these compound in this class, people began to wonder if there were similar compounds found naturally in our bodies. They looked at what was activating the chemical receptors that were activated by cannabinoids. These receptors are linked to memory, cognition, movement, and nociception as well as modulation of the immune system. Sure enough they found molecules in the body that had many of the same properties. These are called endogenous cannabinoids or endocannabinoids and are similar in their structure. Endogenous simply means that they are found naturally in the body. The first discovered is called anandamide (AEA) and two other common ones found later are 2-arachidonoylglycerol (2-AG) and N-arachidonoyl glycine (NAGly).
AEA
These compounds have many interesting effects on the body. It is now well known that AEA can produce innability to feel pain, control motor activity, reduce vomiting, stimulate appetite, induce hypothermia, and have effects that prevent cell growth. AEA has also been seen to induce cell death of tumor cells and cervix cancer cells.
2-AG
2-AG is quite similar to AEA however the brain and reproductive tissues contain higher concentration of it. It has been seen to cause cell death in certain cells and serves as messenger molecules in systems such as the endocrine and immune systems.
NAGly
NAGly is found in brain, spinal cord, intestine, kidney, blood, and skin tissues. It has been found to have analgesic or pain killing properties and has shown an active role in sending help to places in the brain where neurons are damaged.
With the interesting research going on, it begs the question why is this not a more acceptable topic in our society? There are obviously many positive possibilities in this area. I truly believe that people are ignorant in this area and are blinded. There is an attitude of being absolutely against this plant without any constructive and informed discussion about it. Why would we not want to explore cannabinoids more when they can reduce pain for people with terrible diseases? They can help reduce cancer in people and give them the desire to eat when chemotherapy takes it away. There should be more study going on in this area. There is the problem with the way marijuana use can affect each user differently, sometimes in a negative way. Endocannabinoids open up the possibility for targeting pathways and receptors that effect only specific areas. This could potentially eliminate adverse effects and unknowns while helping people with specific issues. There is so much potential for this family of compounds. The public should be educated so that good can come from the many compounds in this plant and the effects it has on the body.

New and Valuable Experiences Learned Through a Capstone Course

There are many different courses that are we are required to as students at Concordia College.  There are exploration courses, perspective courses, and religions courses.  Another class that is required before a student leaves Concordia is a capstone course.  According to Concordia College, the capstone course is the final course in the Core Curriculum which is a writing intensive course.  This course invites student to apply their liberal learning to significant problems of a global nature.  This definition seems to fit the definition of Neurochemistry perfectly.  One reason for this is that we were asked to write blogs after every paper that we had discussed.  This definition also seems to fit the class because of the topics that we covered can deal with global problems.  This is because of the neurological diseases that we covered are diseases that are issues all throughout the world and are constantly being researched everywhere.
The way that the class was set up was also very interesting.  This because the course was writing intensive, but when I was doing it did not seem like it.  This is because of the topics that we covered were interesting so writing about them was easy to do.  There were some though that were a hard to write about, buy that is expected with so many topics.  Another interesting aspect of the class was the way that it was set up.  The class met every Monday, Wednesday, and Friday. On Mondays, we discussed the article a little and talked about subjects that were confusing and topics that we would like to know more about.  On Mondays, we also evaluated how comfortable we felt about the article.  At this point in the week many of the students don’t feel very comfortable.  To help increase this number, every Wednesday we take the topics we didn’t know much about and presented them to each other.  This part of the class was really beneficial because it is what taught me the most about the papers.  I also thought this helped my understanding of the papers so much more.  Then to finish the week we discussed the papers in two groups.  This is where we would discuss ideas on how to treat the disease or many other random topics.  By this time, I felt fairly comfortable about the paper and felt that I knew most of the ideas associated with the paper.  To cap off this class we got into groups and made a PSA about one of the neurological diseases.  I felt this was one of the most enjoyable experiences of the class.  I hope that these may be used in the future to show the dangers of these neurological diseases.
Another interesting experience that was associated with this class that was new to me was the blogging.  I have never thought about doing this before, especially on a subject matter like this.  I feel that this class has changed my idea about blogs.  I feel that if you look at the right blog it can be beneficial, such as the ones on this blog.  The problem is that as a reader you have to be able to distinguish between the good and the bad blogs.  I also feel that it was a good experience and it helped me be able to summarize important information in a brief, but thorough manner.  Another part about the blogs that I liked was the idea that I could discuss the information that I thought was meaningful to me.  This is one of the first times that in my science classes that I have been able to do that.  Another interesting part of the blogs to me is that all of us were in the same class, but the ideas that motivated the blogs were all different.  It allows for the readers of them to learn many different ideas related to the topics.
Overall, I felt that this has been one of my favorite classes that I have taken throughout my time at Concordia.  This is because I learned a lot of new information when not knowing that I was.  I also that it a valuable experience to have a class that was taught to each other rather than being lectured to by a professor.  Another valuable experience from was the fact that I learned so much about nutrition in the brain.  There was much information about this subject that I didn’t even know.  I feel that there should also be a class taught about nutrition in the brain.  We learned a lot about what nutrients are important for the brain, but I feel that it would be beneficial to have a class where we learn about what we should eat for that.  The problem with that is, I would learn how bad my college diet is then for my brain.  A class like this could also have a positive effect on students and their grades that they have in their classes.

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