Answer:
Antigens
Explanation:
Antigens can be defined as molecules that can bind to antibodies. Many authors prefer to define it as any substance capable of eliciting a response from the immune system, however there are antigenic substances that react with the antibody but are not able to stimulate its production.
Antigens are usually unknown molecules in the body. Molecules that detach from foreign cells such as bacteria, fungi, protozoa or even viruses can be considered antigens. Toxins released by bacteria are also examples of substances that can bind to antibodies.
When an individual's blood-type alleles have instructions that direct the construction of a specific set of chemicals that protrude from all red blood cells, these chemicals are the antigens.
Answer:
Low levels of dopamine are related with symptoms of Parkinson's disease.
Atherosclerosis
is a condition that occurs when fatty substances (plaque) build up in blood
vessels. The
accumulation of the fatty substances can cause partial or complete blockage of
blood flow through an artery. Symptoms of this condition include a mini-stroke, pain
in the chest <span>and pain in the leg muscles during exercise.</span>
Their main goal is <span>to change practice. </span>
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