Tag Archives: medicine

It’s in the Blood

Breakthrough research was published on March 9th 2014 by Dr. Howard Federoff and a team of researchers in Washington DC. They developed a blood test that identifies 10 biological markers which has been shown to determine if healthy individuals will develop Alzheimer’s Disease within two or three years. This amazing stepping stone could help individuals receive treatment before developing symptoms of this horrible neurodegenerative disease.

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35 million people all over the world have been diagnosed with Alzheimer’s, the most common form of dementia, and this number is rising rapidly. The ripple effect of this disease touches many family members by having to care for them or put them in care-homes. Individuals with onset Alzheimer’s disease become confused, frustrated, and forgetful and eventually progress to where they cannot talk, feed, or even dress themselves. Alzheimer’s is a horrible disease affecting many innocent elderly people and hopefully in the near future, there will be tremendous progress in the treatment of Alzheimer’s; it may just start before symptoms even begin.

Visual representation of Alzheimer’s (Shuttershock)

“This is a very exciting time,” says Federoff, who leads the team. He states that the test could help patients at risk of developing Alzheimer’s disease and perhaps delay or even stop the progression. “We don’t really know the source of the ten molecules,” admits Federoff, but he suggests that they reflect the destruction of neurons in the brain, which ultimately leads to cognitive impairment and Alzheimer’s disease. When neurons are destroyed in the brain, they cannot come back online or be built again.

Simon Lovestone, a University of Oxford neuroscientist is also excited about the findings in this study. “We desperately need biomarkers which would allow patients to be identified – and recruited into trials – before their symptoms begin”, says Lovestone, who is also a coordinator of a European public-private partnership that searchers for new biomarkers for Alzheimer’s.

Blood Vials (Flickr: loscheiner)

Previous studies have emphasized treatment after diagnosis of Alzheimer’s disease, but no one has ever been completely cured. This new and important research uses blood that is easily accessible, and it has the ability to identify potential risk factors before any symptoms arise. Stopping the disease before it even happens could be an incredible advancement in this field.

Federoff highlights that larger studies must be done exploring a more diverse range of individuals including different races and ages. When these large-scale studies show positive results, perhaps early diagnoses can prevent the disease from becoming aggressive and debilitating to controlled and stable. Overall, this is very promising research that I see possibly flooding the medical field.

By Danielle Marcoux

Sources:

  • http://www.nature.com/news/biomarkers-could-predict-alzheimer-s-before-it-starts-1.14834
  • http://www.nature.com/nm/journal/vaop/ncurrent/full/nm.3466.html
  • http://www.alz.org/alzheimers_disease_what_is_alzheimers.asp
  • http://www.nia.nih.gov/alzheimers/publication/alzheimers-disease-medications-fact-sheet
  • http://www.webmd.com/alzheimers/guide/treatment-overview

Genetics Is To Blame For Your Muffin Top!?

Does your stomach take on the form of a muffin? Source: Wikipedia commons

Everyone hates having a muffin top. Any words associated with fat can grasp great attention easily nowadays. The topic of body image has been the centre of attention in the society for some time now, whether among the entertainment industry or the science community. People are constantly trying out new diets to lose excess fat while others engage in intense workouts. Scientists are consistently carrying out experiments to develop medicine and to find ways to help people obtain slimmer, ideal bodies. For those of you who ponder about why it is almost impossible for you to make that abdominal fat vanish even with the help of workouts, you will soon understand why.

The amount of abdominal fat is measured as the ratio of waist circumference to hip circumference (WHR). Having a surplus of fat does not necessarily mean being overweight, however, it may lead to obesity, cardiovascular diseases, type 2 diabetes and cancer, which can all have drastic effects on one’s life.

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Exercises can help most individuals get rid of the excess fat located around the abdominal, although, the case is less fortunate for some. Here is why: epidemiologist Dr. Kira Taylor from the University of Louisville School of Public Health and Information Sciences and her team discovered genes encoded with information that determines how much fat a person is to have. They estimated that these genes’ contribution to excess abdominal fat can be from 30% to as much as 60%!  Out of the newly discovered genes, three can influence the amount of fat on both men and women while two are associated with women only.

One of the biggest troublemakers of this problem is the gene named SHC1, previously known to participate in regulating cell alterations and cell death. Now, Dr. Taylor and the team unleashed new information on more of the gene’s functions, including its involvement with abdominal fat. A SHC1 variant

SHC1 Protein. Source: Wikipedia Commons

can cause alteration in 17 proteins responsible for obesity, therefore increasing fat tissue production around the abdominal area. The amount of fat produced is more than the needed amount for an individual. In other words, people who have this variant of SHC1 tend to have more excess abdominal fat than others naturally.

This is a remarkable discovery for the science community, especially pharmacologically, as it opens up a new pathway for experts in the field to develop medicines that target the responsible variant SHC1, inhibiting its functions, therefore bringing fat tissue production back down to normal. This also leads to the possibility of reducing risks of diseases associated with this problem. As for the rest of the society, including myself, struggling with losing excess abdominal fat, we can anticipate the arrival of a healthy-looking body in the future with the help of this discovery!

– Jena Yang

 

Other sources:

http://www.sciencedaily.com/releases/2014/01/140122102538.htm

New Genes IDd in Obesity: How Much of Weight is Genetic?

http://news.discovery.com/human/psychology/exercise-overpowers-influence-of-fat-genes-121811.htm