A person’s home is their castle and they populate it with their own subjects – millions and millions of bacteria.
When we move from one location to another we take all of our bacteria with us and “colonize” the space around us within a matter of hours. These “bacterial signatures” are unique.
Microbiome studies could serve as a forensic tool. In the future scientists could look at bacterial colonies to identify the last person to come into contact with the victim of a crime and estimated when the contact happened.
The human gut teems with bacteria, many of their species still unknown. They help us digest food and absorb nutrients, and they play a part in protecting our intestinal walls. Gut bacteria may also help regulate weight and ward off autoimmune diseases.
What are “superbugs” ? Any bacteria that cannot be treated by two or more antibiotics is being called a superbug. The CDC claims the single leading factor for the increase in superbugs is the misuse of antibiotics. Most people who get a C. diff (Clostridium difficile) infection are getting medical care.
MRSA (Staphylococcus aureus) is carried by around 30 per cent of the population without causing any symptoms. However, in vulnerable people, such as those that have recently had surgery, it can cause wound infections, pneumonia and blood poisoning. MRSA cannot be treated with penicillin.
Doctors sometimes recommend beneficial bacteria, also known as probiotics, for patients suffering from GI illnesses such as colitis and Crohn’s disease. However, these over-the-counter probiotic supplements may contain varying amounts of bacteria, and may include cells that are no longer viable. Furthermore, these probiotics have no protective coating, so they can be damaged by acid in the stomach before reaching the intestines.
An MIT team has come up with a method of coating these beneficial bacteria with layer-by-layer layers of polysaccharides or sugars. The thin, gel-like coating protects the bacteria cells from acid in the stomach, as well as bile salts. Once the cells reach the intestines, they settle in and begin replicating, creating a whole new microbiome.