Why chopping an onion makes eyes water
By: Justin Lee
Why do onions make you cry?To answer this question, one needs to understand what the microscopic structure of an onion looks like. Onions are composed of millions of tiny cellular sacs (similar to the individual sacs of an orange or grapefruit, only much smaller)...
Should Smokers and the Obese be Denied Coronary Artery Bypass Surgery
By: Leah Curtis
Should smokers and the obese be denied coronary artery bypass surgery? Absolutely not. Coronary artery bypass surgery is needed when the small blood vessels (or coronary arteries) going to the heart get a build-up of fat. These coronary arteries supply the heart muscle with oxygen...
Zoonotic diseases: Salmonella
By: Janet Farricelli CPDT-KA
The terminology "zoonotic" refers to those conditions and diseases that have the characteristic of not being "species specific" but rather being transmitted from animals to humans. When referring to salmonella, the first species that come to mind are reptiles and turtles which act as the...
Explanation of the complement system of the nonspecific immune response
By: Triana Rathads
Complement cascade is one of the first defences we have against invading pathogens, part of our innate immunity. Complement are serine proteins which work with antibodies to destroy pathogens. Complement controls inflammation, phagocytosis, and lyses some cells (breaks apart, cell death). Macrophages produce complement proteins...
Why humans attract mosquitoes
By: Justin Lee
Why do humans attract mosquitoes?Mosquitoes are attracted to certain chemicals that human bodies exude. Each time a person breathes, thousands of chemicals are released from his pores and mouth (e.g. lactic acid, uric acid, and fatty acids). These chemicals mix with CO2 in...
The emerging role of epigenetics in disease
By: Alicia M Prater PhD
Over the past few decades, the role of genetics in disease has become a topic of many research studies. However, an already complicated field has become increasingly complex with the advent of epigenetics. This relatively new field focuses on chemical alterations of the genetic material...
Can you choose your baby's sex?
By: Tammy Hendren
This is a question I asked myself many times while contemplating if it was possible to indeed choose the sex of your unborn baby. Of course, this is without using any of the high end methods such as invitro fertilization which is extremely costly yet...
By: R.A. Scott
Alzheimer's disease has been with humanity forever. It was first described in 1906 by a psychiatrist named, you guessed, Alois Alzheimer! But the disease had been around so much longer than that. I think most of us have been affected one way or another by...
The importance of DNA replication in the lab
By: Alicia M Prater PhD
DNA replication, often through the polymerase chain reaction (PCR) or bacterial culture, is extremely important in laboratories conducting research on a number of diseases.When isolated from the blood or cells of a living organism, the amount of any particular portion of DNA is extremely...
Introduction to skin genetics
By: Blade619
There are several genes known to be involved with skin pigmentation, these are: SLC24A5, MC1R, SLC45A2, ASIP, MATP, TYR, and OCA2. The most important of these genes in suspected order is SLC45A5 (solute carrier family 24, member 5), MC1R (melanocortin 1 receptor) and finally SLC45A2...

 

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