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IMMUNITY
The
immune system contains receptors for endorphins and neuropeptides.
It travels through the entire body contacting every cell. If the
system recognizes cells, they leave them alone. If they do not recognize
the cells, they attack, thereby defending the body against bacteria
and virus infected cells. There are connections between the immune
system and the central nervous system. The immune system responds
to chemicals and secretes chemical messages. The immune system has
nerve cells that connect the brain to the spleen and other organs
producing immune cells. Stress can affect the immune system.
Organs of the
immune system are called lymphoid organs. These organs produce the
white blood cells that mediate the immune system. These white blood
cells are called lymphocytes. Lymphocytes are produced in the bone
marrow. One particular set, the T-cells, spend time in the thymus
where they mature and develop the ability to distinguish self from
nonself. They travel constantly through the body. A small number
stand alert in the lymph nodes and spleen which have specialized
compartments for different kinds of immune system cells. These organs
all contain networks of nerve cells that allow the brain and central
nervous system to influence immunity.
THERE
ARE DIFFERENT KINDS OF IMMUNE SYSTEM CELLS
- LYMPHOCYTES
Small white blood cells that attack any potential threats to the
body.
- B-LYMPHOCYTES
These B-cells were the first to be discovered. They produce circulating
antibodies. Antibodies are tiny proteins that attach to bacteria,
viruses and other foreign invaders (antigens). Each B lymphocyte
produces only one kind of antibody. One attacks the cold, another
attacks bacteria in pneumonia.
- T-LYMPHOCYTES
These are called T cells. They originate from the thymus gland.
They do not produce antibodies but directly attack foreign invaders.
There are different kinds of T cells, and each have different
functions.
- Cytoxic T
cells These killing cells attack only one kind of infected cell
or agent such as cancer cells, viruses , etc.
- Natural killer
cells (NK) constantly patrol the body looking for dangerous foreign
cells. When they find a dangerous cell they attach and release
toxic chemicals that destroy the invading cells by attacking cancer
cells and bacteria.
- Helper T
cells These stimulate B lymphocytes to make antibodies.
- Suppresser
T cells These shut off helper T cells once enough antibodies are
produced.
Communication
between these cells occur by interferons, interleukines and other
chemical messagers that govern the immune system. There should be
a balance between helper and suppresser T cells. Acupuncture restores
this balance.
The bodys
way to defend against infections, cancers, viruses, and foreign
substances is to identify, destroy, inactivate or eliminate them.
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THERE
ARE TWO SYSTEMS OF ACTION IN THE IMMUNE SYSTEM - BLOOD AND CELLULAR.
The blood system
is controlled by the B lymphocytes that produce antibodies. Antibodies
are proteins that defend against bacteria and viruses found in body
fluids.
The cellular
immune system responds against cancer cells and viruses that are
inside the bodys cells. They are aided by T lymphocytes and
macrophages whose job it is to surround and dissolve the invaders.
They are also aided by natural killer cells (NK) that defend against
virus infected cells and cancer.
An underactive
immune system is seen in AIDS. An overactive immune system cannot
distinguish between self and non self and is at risk for allergies
and auto immune disease such as arthritis. Immune dysfunction can
contribute to the development and spread of cancer. Acupuncture
can stimulate and balance the immune system.
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HOW
DO ANTIBODIES RESPOND TO DISEASE?
Billions of
B cells are on guard. Each recognizes only one specific invader
or antigen. Receptors on theses B cells catch the antigen or invader
and engulf it. Helper T cells come to help and attach to the B cells
releasing interleukins. Interleukins are chemicals that make the
B cells become an antibody factory. Antibody factories are called
plasma cells. Plasma cells multiply and pump out millions of identical
antibodies into the blood where they hunt down the foreigners (
the antigens). Antibodies now:
- Latch onto
toxic substances that bacteria produce and inactivate these toxic
substances.
- Coat the
bacteria. This action attracts other immune cells to destroy the
invaders.
- Latch onto
a virus so the virus cannot infect the bodys cells.
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HOW
DOES CELLULAR IMMUNITY WORK?
Viruses (antigens)
enter the blood and cells respond.
- Cells present
the virus to helper T cells that can recognize it.
- Macrophages
(specialized cells) engulf the virus and present it to the helper
cells.
- Helper cells
mature and multiply rapidly to fight off the virus. They activate
cytotoxic T cells who find and destroy the virus infected cells.
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COMMON
IMMUNITY PROBLEMS
HERPES
VIRUSES
remain for life unlike other viruses. They flare up unpredictably.
Examples of herpes viruses are; genital, cold sores, infectious
mono, cytomegalic virus, chicken pox, shingle, and epstein virus.
The cellular immune system keeps them down. When this is not adequate,
the body produces antibodies to the virus. When antibodies are high,
it means the virus is not controlled. Higher antibodies to herpes
is a sign of low immune function.
- Epstein virus
is high in cases of mono and Alzheimers.
- HSVI virus
is high in cold sores and psychiatric patients.
- Cytomegalic
virus is high in artheriosclerosis, chronic fatigue syndrome,
and transplant organs, and cancer.
- HSV6 virus
is high in multiple sclerosis.
ALLERGIES
are triggered when the immune system becomes oversensitized to something
in the environment. There is an intense inflammatory response when
the allergen is present. The allergen stimulates antibodies which
stimulate mast cells (white blood cells). Histamine is then stimulated,
which inflames the nose and eyes.
AUTOIMMUNE
DISEASE like allergies result in excess immune system activity.
Rheumatoid arthritis, lupus, and type I diabetes are examples of
this. Antibodies identify the bodys healthy cells, and identifies
them as foreigners. These antibodies then invade and attack these
normal cells resulting in chronic inflammation. Acupuncture can
suppress this excess reaction and thus decrease the chronic inflammation.
CANCER
AND AIDS Many scientists feel that cancer cells arise in
the body all the time but are held in check by immune cells. When
the immune system is ineffective, they clump together forming cancer
tumors ( similar to snow flakes becoming a snow ball ). In AIDS,
there is a destruction of the cellular immune system that kills
key helper T cells.
VACCINATIONS
When the body is under stress it is likely to produce antibodies
to the vaccine and more boosters are needed.
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