Alzheimer’s Disease, Memory, and Hormones
October 8, 2008 by Candice Lane, M.D.
Filed under Diseases of Aging
It is predicted that by the year 2050, 14 million people in the United States will have Alzheimer’s disease. It is a type of dementia with cognitive decline.
The exact cause of Alzheimer’s is unknown. It may be a combination of factors, different for every individual, that contribute to the disease. During your lifetime, you lose approximately 20% of your brain cells, but in Alzheimer’s Disease brain cell death is so extensive that the brain can no longer direct the your bodily activities.
The chances of acquiring Alzheimer’s disease increases with age. Two to six percent of the population over age 65 is diagnosed with Alzheimer’s. Half of the population over age 85 has Alzheimer’s, and it is responsible for half the nursing home admissions in the United States.
Alzheimer’s is more common in women, and is four times greater if someone in your family has the disease. In the early stages, a person becomes increasingly forgetful and has difficulty carrying out complex thought processes. The onset can take one to ten years with severe and continual decline for which no other cause can be identified.
Contributing factors to the disease may be genetic predisposition, abnormal calcium regulation in the brain cells, or toxic levels of aluminum, lead, iron, or some other heavy metal in the body. Malnutrition, decreased blood flow to the brain, extensive free radical damage, and environmental toxins also can have an effect.
Alzheimer’s patients have abnormal fibrils surrounding the brain cells eventually ensnarling the brain cells until they die. There are also dead cellular waste products called senile plaques composed of beta-amyloid.
Cognitive decline is not hopeless or inevitable. You can improve the circuitry in your brain by eating wisely, taking appropriate vitamins, minerals, and smart medications, exercising your body and mind, balancing your hormones, and controlling your response to stress in your life. Certain pharmaceuticals (sedatives, painkillers, and anti-depressants like Valium, Darvon, Percodan, and Elavil), alcohol, cigarette smoking, environmental toxins, and allergic substances can harm the brain and should be avoided. Keep your brain busy and active to improve memory, awareness, alertness, and concentration.
Hormone replacement is important in preventing Alzheimer’s disease.
Hormones That Prevent and Improve Alzheimer’s Disease
Growth Hormone improves memory, mood, anxiety, tension, vigor, and cognitive performance. Growth hormone improves memory in Alzheimer’s disease.
It increases glucose utilization, neurogenesis, and blood vessels in brain. It decreases beta-amyloid neurotoxicity, especially in hippocampus.
The first improvement is in 2-4 months. The last improvement is in the next 3 years.
Melatonin deficiency can cause memory loss. Deficiency in melatonin produces reduced anti-oxidant activity in the brain. It protects the brain against toxic free radical damage.
Pregnenolone is a neurosteroid synthesized in the brain, neurons, and peripheral nerves by the neurons. Deficiency causes decreased memory and attention. Alzheimer’s patients have low pregnenolone.
Pregnenolone increases memory, increases spatial memory, decreases alcohol amnesia, and benzodiazepam (Valium, Versed, triazolam) amnesia.
It increases acetylcholine in the hippocampus, and decreases beta amyloid and glutamate neurotoxicity.
Thyroid Hormone – decreased thyroid hormone causes increased memory loss. Deficiency can also slow down mood reaction, fatigue, depression, excessive nervousness, decreased IQ, decreased attention, decreased space orientation, slow thinking, short and long memory loss, and decreased cognitive function. Alzheimer’s patients have low thyroid hormone.
Characteristics of thyroid memory loss are worse in the morning or inactivity, better in the evening, and slow to find word.
Mechanisms of memory enhancement with thyroid hormone are increased brain blood flow, increased brain excitability, increased dendrites and synapses.
With treatment, first improvement is in 2-4 months, and last improvement is in the next 8-12 months.
DHEA - decreased serum DHEA causes increased memory loss. Alzheimer’s disease patients have decreased DHEA. DHEA therapy increases memory. It improves mood in depression and may protect against Alzheimer’s disease.
Mechanism of protection is that it enhances the survival and differentiation of neurons and glial cells by increasing the expression of protein.
It takes 4-6 months to get the first memory improvement. The last improvement is in the next 8 months.
Cortisol – decreased or increased cortisol can cause memory loss.
There is more memory loss during stress, especially at the end of the day. Memory is paralyzed or confused in stress situations, especially short term memory when you feel overwhelmed by what is happening and may have dramatized reactions. Improvement may occur in 24 hours with cortisone supplementation. The last improvement is in 2-3 months.
Chronic stress and increased cortisol can rob the brain cells and neurotransmitters of glucose causing brain cell death. Too much cortisol can damage your neuro-endocrine system which is the connection between your mind and body.
Estrogen – Decreased estrogen causes increased memory loss, disturbances of mood (depression, fatigue, poor libido), poor concentration.
Estrogen deficiency decreases the blood supply to the brain and reduces EEG electrical activity. Estrogen replacement reduces the incidence of Alzheimer’s disease. Estrogen increases memory in women, increases visual memory in men.
Characteristics of memory loss is short and long term memory poor throughout the day, permanent memory loss, and talks less.
Estrogen increases brain blood flow, increases neuron connections, decreases beta-amyloid production and neurotoxicity, decreases brain ischemia.
After treatment first improvement is in 2-4 months, last improvement occurs in the next 8-12 months.
Testosterone – memory loss is a frequent complaint of decreased testosterone. Alzheimer patients have decreased testosterone. People with higher free testosterone have a lower incidence of Alzheimer’s. Testosterone improves memory in normal and Alzheimer patients. Testosterone improves learning, memory, spatial memory, mathematical performance.
Mechanism – increases neuron connections, increases the size and numbers of dendrites, increases the numbers of connections between neurons. Decreased testosterone causes decreased estrogen which produces cognitive complaints. Testosterone increases brain blood perfusion, decreases beta-amyloid secretion, and decreases beta-amyloid toxicity.
Memory loss from testosterone deficiency is worse in the second half of the day and after physical activity. Memory is better in the morning. Hesitation with words is a characteristic of testosterone loss.
First improvement with treatment is 2-4 months. Last improvement is in the next 8-12 months.
If you are having memory problems or fear Alzheimer’s disease, it is crucial to have your hormones checked, and replaced if deficient.
Estrogen-Natural Bioidentical Hormone Replacement
September 21, 2008 by Candice Lane, M.D.
Filed under For Women

You need to think about starting natural estrogen bioidentical hormone replacement therapy when approaching menopause in your late 40’s and early 50’s. Why? Well, for relief of symptoms like hot flashes, night sweats, vaginal dryness, and low libido among others, nothing works better than estrogen. Long term benefits of estrogen bioidentical replacement therapy include prevention of memory loss, maintenance of heart health, prevention of heart disease, bone production (prevention of osteoporosis), prevention of Alzheimer’s disease, prevention of cataracts and macular degeneration, maintenance of mood and prevention of depression, and quality and youthfulness of your genital tissues and skin. Vitamins and herbs cannot do all these things (although they may temporarily improve some symptoms like hot flashes). Quite simply, estrogen keeps women’s cells healthy. Only estrogen in women can prevent disease and improve quality of life…and only bioidentical transdermal estrogen!
What is natural bioidentical hormone replacement? It means using hormones that are biologically identical to what your body makes. In other words, the hormones are the same chemical structure as the ones that your body makes. Customized natural hormonal therapy is the only way to replace hormones safely. One size does not fit all.
Studies have shown that women who use hormone replacement live longer than those who do not. To be effective in preventing disease, estrogen must be started in women in their 50’s. For example, you need 10 years of estrogen replacement to help prevent Alzheimer’s disease.
Estrogen has 400 functions in your body. It increases your metabolic rate, enhances energy, improves insulin sensitivity, and regulates body temperature. It prevents muscle damage and helps maintain muscle.
In the cardiovascular arena, it helps maintain the elasticity of your arteries, dilates your small arteries, increases blood flow, inhibits platelet stickiness, decreases the accumulation of plaque on your arteries, decreases blood pressure, decreases LDL (bad cholesterol) and prevents its oxidation, acts as a natural calcium channel blocker to keep your arteries open (pharmaceutical companies make alien molecules to do this in patients with heart disease), decreases lipoprotein A ( a bad fat that is a risk factor for heart disease), reduces homocysteine (another risk factor for heart disease), increases HDL (good cholesterol) by 10 to 15%, and reduces the overall risk of heart disease by 40 to 50%.
Estrogen has many benefits for your brain and nervous system. It helps maintain your memory, increases reasoning and new ideas, helps with fine motor skills, enhances the production of nerve-growth factor, improves your mood, increases concentration, helps prevent Alzheimer‘s disease, improves your mood, aids in the formation of neurotransmitters in your brain such as serotonin which decreases depression, irritability, anxiety, and pain sensitivity.
For eye health, it protects against macular degeneration and helps prevent cataracts.
For beauty, it maintains the amount of collagen in your skin increases the water content of your skin and is responsible for its thickness and softness, improves breast firmness, maintains the moisture and thickness of the genital tissues, and decreases facial wrinkles.
For bones, it maintains bone density and helps prevent tooth loss.
It increases sexual interest and decreases your risk of colon cancer
Your body has receptor sites for estrogen everywhere: in your brain, muscles, bone, bladder, gut, uterus, ovaries, vagina, breast, eyes, heart, lungs, and blood vessels, so it is needed for health is all these areas.
So with decreased estrogen you get thinner skin, more wrinkles/aging skin, decrease in breast size, stress incontinence, oily skin, acne, decreased sex drive, decreased dexterity, increase in insulin resistance and possible diabetes, vaginal dryness, decreased memory, osteoporosis, urinary tract infections, and increased cholesterol.
Perimenopause and menopause occurs in our 40’s and 50’s. Most women of that age group can expect to live to be a mean age of 83. You may spend 30-40 years without the benefits of estrogen and experience resultant and inexorable disease and decline from loss of estrogen.
With a safe and effective way of replacing estrogen with bio-identical hormones, women no longer need to bear the disease and decline of estrogen deficiency.
A few things to remember:
1. Estrogen must be balanced with progesterone (not progestins or medroxyprogesterone which are piosons), even if you had a hysterectomy. Estrogen without progesterone or not enough progesterone equals 10 pounds. Besides, progesterone also has many benefits of itself.
2. Never take any type of oral estrogen, even bioidentical. It can cause or make cardiovascular heart disease worse due to a protein that is made in the liver when a great deal of estrogen hits the liver when absorbed from the gut. Transdermal estrogen doesn’t do that because it is absorbed more evenly.
3. Take only bioidentical estrogen that has estradiol (your main estrogen) and estriol (a weaker estrogen with cancer and heart protective effects). This compound is generally called Biest (bi-estrogen). Another bioidentical estrogen compound called Triest is now considered to be outdated since it contains estrone, another one of our week estrogens. We need a little estrone for bone health, but we do not need to replace it especially since estrone can be metabolized in the body into cancer causing metabolites.
If your doctor does not know these things, seek out a doctor who is trained and specializes in bioidentical hormones replacement. And enjoy your next 40 years!

