We study the origin of the Noise-Induced Hearing Losses (NIHL) in relation to the morphology and the physiology of the ear. We describe the mechanical and metabolic effects of the noises on the inner ear and their consequences on hearing. We discuss the importance and the limitations of the protective mechanisms. Finally, we present new possibilities to protect the ear against noise and to trea...

OBJECTIVE To investigate whether single nucleotide polymorphisms (SNPs) in the Mn-superoxide dismutase gene (SOD2) underlie the susceptibility to noise-induced hearing loss (NIHL). METHODS Audiometric data from 2400 Chinese Han workers who exposed to occupational noise were analyzed. DNA samples were collected from the 10% most susceptible and the 10% most resistant individuals, and five SNPs...

noise-induced hearing loss, which is one of the 10 leading occupational diseases, is a debilitating and irreversible disease. during the recent 15-years period (1997-2012), several studies have investigated the association between noise, hearing damage and other side effects of noise in iran. the aim of this study was to review systematically the relevant literature related to noise-induced hea...

Noise and noise induced hearing loss (NIHL) in the workplace is a serious issue. Not only can it affect hearing, also ability to work safely. This because noises make difficult hear instructions or safety warnings. Mine workers each have responsibility for relation noise. paper informs underground surface mine operators recognise, manage control risks associated with occupational exposure. It e...

OBJECTIVE Noise-induced hearing loss (NIHL) is a worldwide health problem and a growing concern among young people. Although some people appear to be more susceptible to NIHL, genetic association studies lack a specific phenotype. We tested the feasibility of a bilateral 4000-6000 Hz audiometric notch as a phenotype for identifying genetic contributions to hearing loss in young adults. DESIGN...

microscopy (SEM) and Distortion Product Otoacoustic Emission (DPOAE). Materials and Methods: In this study, eight adult albino guinea pigs were used as the study group (n = 4) and control group (n = 4). DPOAE measurements of both groups were performed before the procedure. 2 hours before administration of the noise, 0.9% NaCl solution was intraperitoneally injected to control group and vitamin ...

BACKGROUND There is a lack of data about police officers' hearing thresholds and the risk of noise-induced hearing loss (NIHL) associated with this occupation. In France, 129,000 national police officers, 96,000 state police force members and 16000 municipal police officers may be affected by occupational noise exposure. AIMS To evaluate the association between police employment and NIHL. M...

BACKGROUND Noise-induced hearing loss (NIHL) is one of the most common occupational injuries in the United States. It would be extremely valuable if a safe, inexpensive compound could be identified which protects worker hearing from noise. In a series of experiments, Kopke has shown that the compound N-acetyl-L-cysteine (L-NAC) can protect the hearing of chinchillas from the effects of a single...