نوع مقاله : مقاله پژوهشی
1 عضو کادر آموزشی گروه شنوایی شناسی دانشکده علوم توانبخشی دانشگاه علوم پزشکی شهید بهشتی
2 کارشناس شنوایی شناسی دانشکده علوم توانبخشی دانشگاه علوم پزشکی شهید بهشتی
عنوان مقاله [English]
Background and Aim: Machine-made life along with the industrialization of the societies has caused the human to deal with a kind of stressful environment made up of aching sound and vibration sources. Noisiness has been one of the biggest problems of today’s world that the people are in danger of its painful effects. Auditory disorder is the most common reason for Adult Acquired Hearing Loss. As a result, protection against auditory disorders seems to be necessary.
Method: In accordance with the importance of this idea, a number of researches in the field of nutrition which resulted in finding the relation between NIHL and vitamins have been carried out. Through the assessment the fact that vitamins can have both preventative and curing influence on NIHL has been evident. Furthermore, it has been discovered that the deficiency of above-mentioned instances can in a way increase the sensitivity of auditory system to noise.
Result: There are various mechanisms for NIHL, and each vitamin in a way can go against the destructive affection of it (NIHL). For instance, vitamins A,C and E along with Magnesium can wipe out the free radicals produced by noise exposure. Making use of Antioxidants combinations like vitamin E can prevent auditory cells from death and Noise Induced Hearing Loss from coming about.
Conclusion: Vitamin A deficiency increases the sensitivity of auditory system to noise and as a result increases the susceptibility to NIHL. Vitamin C by preventing DNA Oxidation and Lipid Peroxidation in Cochlea has preventive and therapeutic effects on NIHL. Vitamin B12, B6 Deficiency and Folic Acid by damaging Stereo Vascular increase the vulnerability to NIHl. The mechanism and how vitamins affect each of above-mentioned instances will be covered within the article in details.