听力学及言语疾病杂志
聽力學及言語疾病雜誌
은역학급언어질병잡지
JOURNAL OF AUDIOLOGY AND SPEECH PATHOLOGY
2014年
6期
603-605
,共3页
甲硫氨酸%噪声性听力损失%预防
甲硫氨痠%譟聲性聽力損失%預防
갑류안산%조성성은력손실%예방
D-methionine%Noise-induced hearing loss%Prevention
目的:探讨口服甲硫氨酸对噪声性听力损失的预防作用。方法将解放军某部健康男性军人203例随机分为试验组(113例)和对照组(90例),均给予脉冲噪声(峰值160~170 dB SPL)暴露1小时,暴露前3天试验组口服甲硫氨酸片1500 mg/日×3天,对照组则口服等剂量安慰剂(淀粉)。两组受试者噪声暴露前后行纯音测听、听性脑干反应听(ABR)检查,对检查结果进行统计学分析。结果噪声暴露后1天,两组各频率纯音听阈均高于暴露前(P<0.05或 P<0.01),暴露后7天,对照组纯音听阈仍升高(P<0.05),而试验组与暴露前比较差异无统计学意义(P>0.05);噪声暴露前、暴露后1天、7天,试验组 ABR 反应阈分别为40.5±9.3、51.7±12.3、44.1±11.4 dB nHL,对照组分别为41.5±8.9、62.4±13.7、47.6±12.5 dB nHL,试验组 ABR I-V 波间期分别为3.72±0.21、3.99±0.36、3.82±0.25 ms,对照组分别为3.71±0.22、4.45±0.37、3.85±0.34 ms,噪声暴露后1、7天两组间 ABR 反应阈、I-V 波间期比较差异有统计学意义(P<0.05或 P<0.01)。结论噪声暴露前口服甲硫氨酸片能有效减轻噪声暴露后噪声性听力损失的发生。
目的:探討口服甲硫氨痠對譟聲性聽力損失的預防作用。方法將解放軍某部健康男性軍人203例隨機分為試驗組(113例)和對照組(90例),均給予脈遲譟聲(峰值160~170 dB SPL)暴露1小時,暴露前3天試驗組口服甲硫氨痠片1500 mg/日×3天,對照組則口服等劑量安慰劑(澱粉)。兩組受試者譟聲暴露前後行純音測聽、聽性腦榦反應聽(ABR)檢查,對檢查結果進行統計學分析。結果譟聲暴露後1天,兩組各頻率純音聽閾均高于暴露前(P<0.05或 P<0.01),暴露後7天,對照組純音聽閾仍升高(P<0.05),而試驗組與暴露前比較差異無統計學意義(P>0.05);譟聲暴露前、暴露後1天、7天,試驗組 ABR 反應閾分彆為40.5±9.3、51.7±12.3、44.1±11.4 dB nHL,對照組分彆為41.5±8.9、62.4±13.7、47.6±12.5 dB nHL,試驗組 ABR I-V 波間期分彆為3.72±0.21、3.99±0.36、3.82±0.25 ms,對照組分彆為3.71±0.22、4.45±0.37、3.85±0.34 ms,譟聲暴露後1、7天兩組間 ABR 反應閾、I-V 波間期比較差異有統計學意義(P<0.05或 P<0.01)。結論譟聲暴露前口服甲硫氨痠片能有效減輕譟聲暴露後譟聲性聽力損失的髮生。
목적:탐토구복갑류안산대조성성은력손실적예방작용。방법장해방군모부건강남성군인203례수궤분위시험조(113례)화대조조(90례),균급여맥충조성(봉치160~170 dB SPL)폭로1소시,폭로전3천시험조구복갑류안산편1500 mg/일×3천,대조조칙구복등제량안위제(정분)。량조수시자조성폭로전후행순음측은、은성뇌간반응은(ABR)검사,대검사결과진행통계학분석。결과조성폭로후1천,량조각빈솔순음은역균고우폭로전(P<0.05혹 P<0.01),폭로후7천,대조조순음은역잉승고(P<0.05),이시험조여폭로전비교차이무통계학의의(P>0.05);조성폭로전、폭로후1천、7천,시험조 ABR 반응역분별위40.5±9.3、51.7±12.3、44.1±11.4 dB nHL,대조조분별위41.5±8.9、62.4±13.7、47.6±12.5 dB nHL,시험조 ABR I-V 파간기분별위3.72±0.21、3.99±0.36、3.82±0.25 ms,대조조분별위3.71±0.22、4.45±0.37、3.85±0.34 ms,조성폭로후1、7천량조간 ABR 반응역、I-V 파간기비교차이유통계학의의(P<0.05혹 P<0.01)。결론조성폭로전구복갑류안산편능유효감경조성폭로후조성성은력손실적발생。
Objective To evaluate the protective effects of oral administration of D-methionine tablets on noise-induced hearing loss.Methods A total of 203 volunteers were recruited and randomly divided into two groups:experimental group (n=113)and control group (n=90).The subjects in the experimental group received oral administration of D-methionine tablets(1 500 mg/day)and those in the control group received placebo for 3 days before impulse noise exposure.The routine audiometric evaluation and ABR testing were performed and recor-ded 1 day and 7 days post- noise exposure.The statistical analysis was carried out with SPSS 11.0.ResuIts The changes of hearing in all participators were observed after noise exposure.The results were as follow:The hearing thresh-olds at three time points were 40.5±9.3,51.7±12.3,44.1±11.4 dB nHL in experimental group and 41.5±8.9,62.4± 13.7,47.6±12.5 dB nHL in control group,respectlvely;the ABR I-V IPLs at three time points were 3.72±0.21 ms, 3.99±0.36 ms,3.82±0.25 ms in experimental group,while 3.71±0.22 ms,4.45±0.37 ms,3.85±0.34 ms in control group,respectively.There were statistically significant differences between the two groups.ConcIusion The oral adminis-tration of D-methionine tablets pre noise exposure can protect against noise-induced hearing loss.