noise induced hearing loss (nihl) is one of the most important occupational disease worldwide. nihl has been found potentiate by simultaneous carbon monoxide (co) exposure. free radicals have been implicated in cochlear damage resulted from the exposure to noise and due to the co hypoxia. this study examined whether α-tocopherol administration, as a free radical scavenger, causes the attenuatio...

background: noise as a most common harmful physical agent in workplaces has some effects on the exposed persons such as hearing threshold reduction, increasing blood pressure, and interference with the speech. the adverse side-effect of noise is one of the scientific areas that have seldom been considered by researchers. the aim of this study was to investigate the effects of occupational noise...

exposing the ear to an intense noise will probably cause to hearing loss. this loss may be temporary threshold shift (tts), permanent threshold shift (pts), or a combination of the two. the average audiograms for the 157 textile workers, exposed to an average 100 db (a) overall noise level, in 5 age groups indicated that the losses were most prominent for frequencies of 3 to 6 kc/s showing a pe...

objective(s): noise-induced hearing loss (nihl) is the major cause of acquired hearing loss.  celecoxib, a cyclooxygenase-2 (cox-2) inhibitor, is a non- steroidal anti- inflammatory drug (nsaid) with known antioxidant and antineoplastic activity. therefore, we monitored the extent of temporary noise- induced threshold shifts (tts) and cochlear damage caused by high level 4- khz noise exposure t...

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researchers suggested that the individual fit test be conducted to estimate the protection effectiveness of workers’ hearing protection device (hpd) while working. practically, it is convenient to conduct single, instead of multiple, fit test measurement. this study examined if a single trial of earplug fit test can represent multiple performances. additionally, it investigated how much noise e...

background: noise induced hearing loss (nihl) is the highest reported occupational disease among industrial workers but there is scarcity of data on disease burden in malaysia. this study estimated the risks and burden of nihl in manufacturing industries in malaysia. methods: this cross-sectional industrial survey was conducted by interviewing osh practitioners at 26 industries categorized as f...

noise is a type of energy when exceeds t.l.v., it can cause hearing loss, especially in working environments. as factory workers are at high risk of noise, the present study evaluated the bistoon tile factory workers hearing losses. in this analytical cross-sectional study, workers’ noise leq were calculated according to i.s.o. standards and their audiometry results were derived from their heal...