What is Epilepsy?
Epilepsy is a brain disorder in which clusters of nerve cells, or neurons, in the brain sometimes signal abnormally. Neurons normally generate electrochemical impulses that act on other neurons, glands, and muscles to produce human thoughts, feelings, and actions. In epilepsy, the normal pattern of neuronal activity becomes disturbed, causing strange sensations, emotions, and behavior, or sometimes convulsions, muscle spasms, and loss of consciousness. During a seizure, neurons may fire as many as 500 times a second, much faster than the normal rate of about 80 times a second. In some people, this happens only occasionally; for others, it may happen up to hundreds of times a day.
More than 2 million people in the United States – about 1 in 100 – have experienced an unprovoked seizure or been diagnosed with epilepsy. For about 80 percent of those diagnosed with epilepsy, seizures can be controlled with modern medicines and surgical techniques. However, about 20 percent of people with epilepsy will continue to experience seizures even with the best available treatment. Doctors call this situation intractable epilepsy. Having a seizure does not necessarily mean that a person has epilepsy. Only when a person has had two or more seizures is he or she considered to have epilepsy.
While epilepsy cannot currently be cured, for some people it does eventually go away. One study found that children with idiopathic epilepsy, or epilepsy with an unknown cause, had a 68 to 92 percent chance of becoming seizure-free by 20 years after their diagnosis. The odds of becoming seizure-free are not as good for adults, or for children with severe epilepsy syndromes, but it is nonetheless possible that seizures may decrease or even stop over time. This is more likely if the epilepsy has been well-controlled by medication or if the person has had epilepsy surgery.
What Causes Epilepsy?
Epilepsy is a disorder with many possible causes. Anything that disturbs the normal pattern of neuron activity – from illness to brain damage to abnormal brain development — can lead to seizures.
Epilepsy may develop because of an abnormality in brain wiring, an imbalance of nerve signaling chemicals called neurotransmitters, or some combination of these factors. Researchers believe that some people with epilepsy have an abnormally high level of excitatory neurotransmitters that increase neuronal activity, while others have an abnormally low level of inhibitory neurotransmitters that decrease neuronal activity in the brain. Either situation can result in too much neuronal activity and cause epilepsy. One of the most-studied neurotransmitters that plays a role in epilepsy is GABA, or gamma-aminobutyric acid, which is an inhibitory neurotransmitter. Research on GABA has led to drugs that alter the amount of this neurotransmitter in the brain or change how the brain responds to it. Researchers also are studying excitatory neurotransmitters such as glutamate.
About half of all seizures have no known cause. However, in other cases, the seizures are clearly linked to infection, trauma, or other identifiable problems.
Research suggests that genetic abnormalities may be some of the most important factors contributing to epilepsy. Some types of epilepsy have been traced to an abnormality in a specific gene. Many other types of epilepsy tend to run in families, which suggests that genes influence epilepsy. Some researchers estimate that more than 500 genes could play a role in this disorder. However, it is increasingly clear that, for many forms of epilepsy, genetic abnormalities play only a partial role, perhaps by increasing a person’s susceptibility to seizures that are triggered by an environmental factor.
Several types of epilepsy have now been linked to defective genes for ion channels, the “gates” that control the flow of ions in and out of cells and regulate neuron signaling. Another gene, which is missing in people with progressive myoclonus epilepsy, codes for a protein called cystatin B. This protein regulates enzymes that break down other proteins. Another gene, which is altered in a severe form of epilepsy called LaFora’s disease, has been linked to a gene that helps to break down carbohydrates.
In many cases, epilepsy develops as a result of brain damage from other disorders. For example, brain tumors, alcoholism, and Alzheimer’s disease frequently lead to epilepsy because they alter the normal workings of the brain. Strokes, heart attacks, and other conditions that deprive the brain of oxygen also can cause epilepsy in some cases. About 32 percent of all newly developed epilepsy in elderly people appears to be due to cerebrovascular disease, which reduces the supply of oxygen to brain cells. Meningitis, AIDS, viral encephalitis, and other infectious diseases can lead to epilepsy, as can hydrocephalus – a condition in which excess fluid builds up in the brain. Epilepsy also can result from intolerance to wheat gluten (known as celiac disease), or from a parasitic infection of the brain called neurocysticercosis. Seizures may stop once these disorders are treated successfully. However, the odds of becoming seizure-free after the primary disorder is treated are uncertain and vary depending on the type of disorder, the brain region that is affected, and how much brain damage occurred prior to treatment.
Epilepsy is associated with a variety of developmental and metabolic disorders, including cerebral palsy, neurofibromatosis, pyruvate deficiency, tuberous sclerosis, Landau-Kleffner syndrome, and autism. Epilepsy is just one of set of symptoms commonly found in people with these disorders.
Prenatal Injury and Developmental Problems
The developing brain is susceptible to many kinds of injury. Maternal infections, poor nutrition, and oxygen deficiencies are just some of the conditions that may take a toll on the brain of a developing baby. These conditions may lead to cerebral palsy, which often is associated with epilepsy, or they may cause epilepsy that is unrelated to any other disorders. About 20 percent of seizures in children are due to cerebral palsy or other neurological abnormalities. Abnormalities in genes that control development also may contribute to epilepsy. Advanced brain imaging has revealed that some cases of epilepsy that occur with no obvious cause may be associated with areas of dysplasia in the brain that probably develop before birth.
Seizures can result from exposure to lead, carbon monoxide, and many other poisons. They also can result from exposure to street drugs and from overdoses of antidepressants and other medications.
Seizures are often triggered by factors such as lack of sleep, alcohol consumption, stress, or hormonal changes associated with the menstrual cycle. These seizure triggers do not cause epilepsy but can provoke first seizures or cause breakthrough seizures in people who otherwise experience good seizure control with their medication. Sleep deprivation in particular is a universal and powerful trigger of seizures. For this reason, people with epilepsy should make sure to get enough sleep and should try to stay on a regular sleep schedule as much as possible. For some people, light flashing at a certain speed or the flicker of a computer monitor can trigger a seizure; this problem is called photosensitive epilepsy. Smoking cigarettes also can trigger seizures. The nicotine in cigarettes acts on receptors for the excitatory neurotransmitter acetylcholine in the brain, which increases neuronal firing. Seizures are not triggered by sexual activity except in very rare instances.
Common Nutritional Supplements used in Epilepsy
Deficiency of folate (the naturally occurring form of folic acid and a form of vitamin B complex ) can be caused by some anti-epileptic drugs sometimes leading to abnormalities in red blood cell formation. Folate deficiency can also lead to serious birth defects called neural tube defects which happen very early in the pregnancy, often before a woman knows she is pregnant.
Folic acid – No more than 2,500 micrograms for children ages 5-15
400-5,000 micrograms for adults
1,600 micrograms for women of childbearing age on anti-epilepstic drugs
3,000 micrograms for women on anti-epileptic drugs who are planning to become pregnant, taken for 3 months before stopping birth control (requires a prescription)
The mineral selenium is another nutrient, which act as scavenger for free radicals, having antioxidant properties and also appears to help control seizures in some children. It was found that some children with severe, uncontrollable seizures and repeated infections have low blood levels of glutathione peroxidase, a selenium-dependent antioxidant enzyme.
Selenium – 50-150 micrograms for children / 50-200 micrograms for adults
It is believe that vitamin E could be helpful for some kinds of seizures. In children, whose seizures initially could not be controlled by medication, seizure frequency was found to decrease in 60-100% of the children when they took 400 international units of d-alpha-tocopherol acetate per day for three months in addition to their regular medication. Animals given vitamin E are more resistant to seizures induced by pressurized oxygen, iron and certain chemicals. And clinical studies show that people taking anti-epileptic drugs have reduced blood levels of vitamin E.
Vitamin E apparently has no direct anti-epileptic action but act as a scavenger and take up free radicals protecting the membranes of brain cells in some forms of epilepsy such as post-traumatic seizures. In animals, seizures can be induced by chemicals (e.g. ferrous chloride) that produce free radicals.
Vitamin E (d-alpha-tocopherol acetate) – 400 international units for children ages 3 and over (d-alpha-tocopherol acetate) / 400-600 international units for adults (d-alpha-tocopherol acetate)
Other Nutritional Supplements
L-Taurine & L-tyrosine (amino-acids) 500mg three times a day (Important for proper brain function.)
Magnesium – 700 mg taken between meals on an empty stomach with apple cider vinegar or betaine HCL.
Vitamin B6 ( Pyridoxine ) – 100-600 mg daily in divided doses under supervision. (All B vitamins are extremely important in the central nervous system.)
Vitamin B12 – 200 mcg. dissolved under the tongue twice daily, on an empty stomach.
Calcium – 1500mg daily (Important in normal nerve transmission.)
Vitamin B complex with extra
and pantothenic acid 50mg daily
Zinc – 50-80mg daily (Valuable in RNA/DNA synthesis)
Germanium – 200mg daily (Improves cellular oxidation.)
Chromium – 200mcg daily (Important in cerebral sugar metabolism. Picolinate form is effective.)
Vitamin A – 25,000 IU daily.(An important antioxidant that aids in protecting brain function.)
Vitamin C plus bioflavoids – 2000-7000mg daily in divided doses.(Vital to functioning of adrenal gland, which is the anti-stress gland.)