The Bugs that Live With Us: Gut Microbiome and Dysbiosis
Many of my patients complain of stomach problems. Some of had chronic diarrhea others have had chronic constipation. All of them have had an upset stomach of sorts. They have tried many different avenues to figure out why and I am here to rely some information on that. How many of you know that there are microorganisms on and in your body right now? That not only are a few but trillions of bacteria that live with us. This is called the microbiome. I will talk specifically about the gut microbiome or gut normal flora. I will also talk about some of the negative effects of an imbalanced microbiome or dysbiosis.
Essential to understanding what happens with an imbalanced microbiome or dysbiosis is understanding the complex system of the gut. Our gut is made up of everything from our mouth to our anus which includes esophagus, stomach, small intestine, and large intestine. There are other organs often included in this because of their role in digestion such as the pancreas and liver. Our gut is very unique and not many know that it has its own functioning nervous system that works in conjunction with our central nervous system. It is called the enteric nervous system. Enteric means “pertaining to the intestines”. Some have dubbed it the “second brain”. There is continual communication between this second brain and our brain. Furthermore, around 80% of immune system is contained within the gut. This is due to the gut being open to the external environment. I know what you are thinking, how is it external but yet it is inside me? Just think about eating. You put food from the outside world into your body. The tube that starts at your mouth and ends at your anus is essentially open to the world in this regard. That is why it has contains so much of our immune system. In fact it “contains on the order of ten to the eighth neurons, the gastroenteropancreatic endocrine system uses more than 20 identified hormones, and the gut immune system has 70-80% of the body’s immune cells. When this response is maladjusted or is overwhelmed, the consequences can be severe or debilitating as in irritable bowel syndrome.” (1) That is why gut health is so important! That is why I harp on it all the time.
Now that we understand a little bit more about the gut let’s talk about the flora or microbiome. There are trillions of bacteria that live as normal flora in the gut. That means they are supposed to be there, it is by design! They are immunoprotective as well. They add to your defense but they do much more! This is a hot topic right now and is being researched heavily.
Here is list of the benefits:
- Help with our immune system protecting us from pathogens (2)
- Create serotonin, an essential neurotransmitter often associated with anxiety and depression. In fact almost 90% of serotonin is made in the gut. (3)
- Protection from tuberculosis (4)
- Lower risk for type 1 diabetes (5)
- Regulation of our nerve insulation (6)
- Production of short-chain fatty acids, B vitamins, and Vitamin K (7)
- Intestinal motility (8)
- Metabolism of nutrients, lipids, bile acids, and dietary fiber. (9)
- Anxiety and Depression (10,11,12)
- Parkinson’s disease (13,14)
- Irritable bowel syndrome (15)
- Diabetes (16)
- Juvenile idiopathic arthritis and other systemic inflammatory diseases (17)
- Multiple Sclerosis (18)
- Autoimmune disease (19)
- Hyperthyroidism (20)
- Hashimoto’s (21)
- Autism (22,23,24)