Dr. HingHau Tsang's Crusade on Nutrition
Newsletter #130 --- Natural approach to hearing loss
Hearing loss is associated with aging and/or prolonged exposure to loud noises - guns firing, firecracker, jets taking off, the amplified sounds of music at rock concert, the sound of power tools, the loud motors of snowmobiles or motorcycles and the amplified sound from iPod. Noise-induced hearing loss can stem from prolonged exposure or even a one-time exposure to loud noise.
Hearing experts now regard as a serious and growing problem among young and not so young people who are listening to music most of the day. This is taking a toll on the hearing of a whole generation. The incidence of noise-induced hearing loss has been increasing since the first Walkmans were introduced. There are now 10 million baby boomers with hearing loss, a million more than the number of people over the age of 65 with hearing loss.
For tinnitus (Ringing of the ear), please read Natural approach to Tinnitus
General principles for a healthy functioning ear
Avoid dehydration. Drink 6-8 glasses of clean water daily
Get adequate rest; avoid fatigue.
Reduce sugar intake
Lower your salt intake (salt impairs blood circulation).
Avoid high fat diets which contributes to hearing loss and tinnitus.
Exercise daily.
Avoid stimulants such as coffee, tea, cola and tobacco
Avoid exposure to loud sounds and noises
Wear ear plugs before exposure to loud noises
Give iPods a rest.
Avoid using "ear candling" for the removal of ear wax which does no good but harm
Avoid inserting cotton swabs into the ear canal which might injury the ear drum
Avoid getting water trapped in the ear canal predisposing to ear infection
Support Good Hearing Function with the following oto-protective supplements
1) Vitamin A, vitamin C, vitamin E with magnesium
- May 2007, published in the journal "Free Radical Biology Medicine", researchers from the University of Michigan studied the effects of hearing loss after noise trauma. In their study they compared the effects of three combinations of the vitamins with magnesium and a placebo in guinea pigs. One group got vitamins A, C and E; another got A, C, and E plus magnesium; a third got magnesium alone and a fourth received placebos. An hour later, all groups were then exposed to noise as loud as the sound of a jet taking off at close range. The noise was loud enough to induce hearing loss. The vitamin and mineral doses were repeated once a day for five days. The Michigan researchers explained that noise-induced trauma causes the energy-producing mitochondria in the nerve cells of the ear to churn out damaging free radicals. Excessive free radical activity can damage the inner ear leading to hearing loss. The researchers reported that the combination of vitamins A, C, E plus magnesium prevented the damage that leads to hearing loss. They hypothesized that the doses taken after noise exposure seem to have "scavenged" the free radicals that continue to form even after noise exposure ends. The lead researcher is confident enough that the findings will hold up in humans. They have launched a startup company to develop the vitamin/magnesium combination. They envision combining the vitamins and magnesium into a nutrition bar to be given to soldiers for daily hearing protection in war zones and to people who work in noisy environments or who habitually listen to loud music.
- October, 2007, published in the journal "Current Opinions of Otolaryngology and Head and Neck Surgery", researchers from Henry Ford Hospital in Detroit said that at a cellular and sub-cellular level, hearing impairment is precipitated by oxidative stress and damage. There was compelling evidence that antioxidant supplementation is beneficial for improving and even reversing the effects of many types of acquired hearing loss.
- October 2007, published in the journal "Neurobiology of Aging", the University of Michigan researchers investigated oxidative stress in the cochlea of a group of aging mice. They indicated that there is oxidative imbalance in the aging inner ear and over time there were increasing markers of oxidative stress with decreased levels of antioxidant found in the cochlea of these mice.
Take Clinical Nutrients for Men or Clinical Nutrients For Women, which contains Vitamin A, Vitamin C, Vitamin E and Magnesium or take Vitamin A, Vitamin C, Vitamin E and Magnesium individually.
2) Coenzyme q-10 (CoQ10)
June 2007, a study published in the journal 'Otolaryngology Neuro-Otology' concluded that there is an inverse relationship to sudden sensori-neural hearing loss and coenzyme Q10 (CoQ10) levels in patients with cardiovascular risk factors. It is possible that coenzyme Q10 plays a role in protecting hearing loss.
3) N-Acetyl-Cysteine (NAC) for drug induced hearing loss
August 2007, a study published by Israel in the journal "Kidney International" regarding drug induced hearing loss. In a group of forty patients, those patients given N-acetyl cysteine (NAC) appeared to have oto-protective effects. The study suggested that NAC supplementation may ameliorate antibiotic induced oto-toxicity in patients undergoing dialysis. NAC is a powerful antioxidant. NAC boosts glutathione levels up to 92%. In fact, intravenous N-acetyl cysteine is used in the hospital to reverse liver toxicity due to Tylenol overdose. Tylenol depletes glutathione levels in the liver, leading to free radicals destroying healthy liver cells.
For tinnitus (Ringing of the ear), please read Natural approach to Tinnitus
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Reference
- LePrell CG, Hughes LF and Miller JM, Free radical scavengers vitamins A, C, and E plus magnesium reduce noise trauma, Free Radical Biology Medicine, 2007 May 1;42(9):1454-63.
- Conlin AE and Parnes LS, Treatment of Sudden Sensorineural Hearing Loss, Otolaryngology Neuro-Otology, June 2007;133:573-581.
- Rybak LP and Ramkumar V, Ototoxicity, Kidney International, 25 July 2007 (advance online publication); doi:10.1038/sj.ki.5002434.
- Darrat I, Ahmad N, Seidman K and Seidman, M, Auditory research involving antioxidants, Current Opinion in Otolaryngology and Head and Neck Surgery, 15(5):358-363, October 2007.
- Jiang H, Talaska AE, Schacht J and Sha S-H, Oxidative imbalance in the aging inner ear, Neurobiology of Aging, Volume 28, Issue 10, October 2007, pages 1605-1612.
- Spencer JT Jr. Hyperlipoproteinemia, hyperinsulinism, and Meniere's disease. South Med J 1981;74:1194-7.
- Shambaugh GE. Zinc and presbycusis. Am J Otol 1985;6:116-7.
- Shemesh Z, Attias J, Ornan M, et al. Vitamin B12 deficiency in patients with chronic tinnitus and noise-induced hearing loss. Am J Otolaryngol 1993;14:94-9.
- Ribarti O, Zelen B, Kollar B. Ethyl apovincaminate in the treatment of sensorineural impairment of hearing. Arzneimittelforschung 1976;26:1977-80.
- Ernst E, Stevinson C. Ginkgo biloba for tinnitus: a review. Clin Otolaryngol 1999;24:164-7.
- Shemesh Z, Attias J, Ornan M, et al. Vitamin B12 deficiency in patients with chronic tinnitus and noise-induced hearing loss. Am J Otolaryngol 1993;14:94-9.
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Dr. Tsang wishes to share his knowledge & Opinion with the public regarding the importance of " Nutritional Supplements ". This is for your information only. Drugs have powerful effects on the body, so please don't abruptly stop taking any prescription medication. Always consult your physician or health care provider before you use any nutritional supplement or switch from drugs to natural health products.
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