Defense. If the skin is injured, bacteria can enter the body and may cause infections. Photo Credit flesh wound image by Allyson Ricketts from Fotolia.com. The outermost layer of skin, called the epidermis, acts as a physical barrier between your body and the dirt and bacteria outside.hough normal flora bacteria are not usually harmful, they can cause infections if they enter your body through a wound. Most of these organisms are considered healthy bacteria because they prevent very harmful bacteria, called pathogens, from growing on your skin.
âWeâve focused for many years on the nitric oxide pathway to find new therapies that might improve outcomes for babies with pulmonary hypertension,â Aschner said. In the body, the enzyme nitric oxide synthase (NOS) produces nitric oxide from the amino acid arginine. Aschner and colleagues had discovered that NOS is present in a multi-protein complex, which is important for the activation of NOS and production of nitric oxide.
Nitric oxide is a free radical âi.e., its bonding structure includes an unpaired electron âand it is in the class of heteronuclear diatomic molecules that are of historic theoretical interest (for the insights they gave in formulating early modern theories of bonding).itric oxide should not be confused with nitrous oxide (N 2 O), an anaesthetic, or with nitrogen dioxide (NO 2), a brown toxic gas and a major air pollutant, the latter being a product to which nitric oxide is rapidly oxidised in air.