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J Occup Environ Med. 2013 Sep;55(9):1001-6. doi: 10.1097/JOM.0b013e31829f3142.

Ethylbenzene-induced hearing loss, neurobehavioral function, and neurotransmitter alterations in petrochemical workers.

Author information

1
Tianjin Centers for Disease Control and Prevention, China.

Abstract

OBJECTIVE:

To estimate hearing loss, neurobehavioral function, and neurotransmitter alteration induced by ethylbenzene in petrochemical workers.

METHODS:

From two petrochemical plants, 246 and 307 workers exposed to both ethylbenzene and noise were recruited-290 workers exposed to noise only from a power station plant and 327 office personnel as control group, respectively. Hearing and neurobehavioral functions were evaluated. Serum neurotransmitters were also determined.

RESULTS:

The prevalence of hearing loss was much higher in petrochemical groups than that in power station and control groups (P < 0.05). Compared with the control group, scores of neurobehavioral function reflecting learning and memory were decreased in petrochemical workers (P < 0.05), as well as acetylcholinesterase activity. Negative correlation was shown between neurobehavioral function and acetylcholinesterase.

CONCLUSIONS:

Ethylbenzene exposure might be associated with hearing loss, neurobehavioral function impairment, and imbalance of neurotransmitters.

PMID:
23969497
DOI:
10.1097/JOM.0b013e31829f3142
[Indexed for MEDLINE]

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