Myelin sheath function & (Major) Causes,Symptoms
The myelin sheath function is to protect and isolate the axons and improve their transmission of electrical impulses. If myelin is damaged, the transmission of these impulses is slowed down, which is observed in severe neurological conditions, such as multiple sclerosis. Read on more about myelin sheath function.
myelin sheath function
Neurons can be myelinated – they are surrounded by myelin or non-myelinated casings because they are not surrounded by the myelin sheath.
Myelin sheath function consists of Schwann cells and there are vaginal gaps known as Ranvier nodes.
The main myelin sheath function is:
It acts as an electrical insulator for the neuron – it prevents the penetration of electrical impulses through the shield.
In myelin sheath function, The sheath prevents ion migration to or from the neuron / prevents depolarization.
Accelerates the transmission of the electrical impulse in the neuron – impulses cannot pass through the shield (the shield acts as an electrical insulator), instead, the pulses “jump” from the gap in the myelin sheath to another gap (it jumps from one Ranvier node to another).
myelin sheath causes
Damaged nerve signals can cause debilitating symptoms, including:
problems with walking and coordination, weak muscles, fatigue, Sight problems
MS affects everyone differently. The seriousness of the illness and the types of symptoms vary from person to person. The exact cause of MS is unknown. However, scientists accept that four factors may play a role in the development of the disease.
Cause 1: The immune system
Multiple sclerosis is considered to be an immune-mediated disease: the immune system is malfunctioning and attacks the CNS.
Research is underway on which immune cells are responsible for the attack. Researchers are trying to discover what causes these cells to attack. They also look for methods to control or stop the progression of the disease.
Cause 2: Genetics
Some genes are thought to play a role in MS. Your chance for developing MS is slightly higher if a close relative, such as a parent or sibling, gets ill.
Researchers believe that people with multiple sclerosis are born with a genetic susceptibility to respond to certain (unknown) environmental factors.
Cause 3: Environment
Epidemiologists have observed an increased pattern of MS cases in countries farthest from the equator. This connection causes some to believe that vitamin D may play a role.
Vitamin D is beneficial for the immune system. People living near the equator are exposed to more sunlight. As an outcome, their bodies produce more vitamin D.
Cause 4: Infection
Researchers are considering the possibility that viruses and bacteria can cause multiple sclerosis. Viruses cause myelin inflammation and breakdown (so-called demyelination). Therefore, it is possible that the virus can trigger MS. Several viruses and bacteria are tested to determine if they are involved in the development of MS. They include:
human herpes-6 virus (HHV-6)
Epstein-Barr virus (EBV)
The symptoms of MS
There are many triggers that people with MS should avoid.
Stress can cause and worsen MS symptoms. Practices that help reduce stress and manage stress can be helpful for people with multiple sclerosis. Add to relaxing rituals such as yoga and meditation.
Cigarette smoke can contribute to the progress of MS. If you are a smoker, look at the effective methods of quitting smoking. Avoid using passive smoking.
Not everyone can see the difference in symptoms because of heat, but avoid direct sun or hot tubs if you notice that you are responding to them.
There are several ways that medications can make symptoms worse. If you are taking many medications and are having a bad effect, talk to your doctor about which medications are necessary and which you can stop.
Some people stop taking medication for MS because they have too many side effects or think they are not effective. However, these drugs are necessary to prevent relapse and new changes, so it is important to stay with them.
Fatigue is a common symptom of MS. If you do not fall asleep enough, it can reduce your energy even more.
From urinary tract infections to colds or flu, infections can make your symptoms worse. In fact, infections cause about one-third of all exacerbations of MS symptoms, according to the Cleveland Clinic.
Although there is no cure for MS, there are treatment options that help to cope with MS symptoms.
The most commonly used categories of treatment are corticosteroids, such as oral prednisone and intravenous methylprednisolone, which reduce nerve inflammation.
In cases that do not respond to steroids, some doctors recommend exchanging plasma.
In the case of relapsing-remitting MS, several disease-modifying therapies are available, but all of them involve significant health risks. Talk to your doctor about whether they are appropriate for you.