Background:Autism spectrum disorder(ASD)is defined by standardized criteria of qualitative impairments in social interaction,qualitative impairments in communication,and restricted and stereotyped patterns of behavior...Background:Autism spectrum disorder(ASD)is defined by standardized criteria of qualitative impairments in social interaction,qualitative impairments in communication,and restricted and stereotyped patterns of behavior,interests,and activities.A significant number of children diagnosed with ASD suffer a loss of previously-acquired skills,which is suggestive of neurodegeneration or a type of progressive encephalopathy with an etiological pathogenic basis occurring after birth.To date,the etiology of ASD remains under debate,however,many studies suggest toxicity,especially from mercury(Hg),in individuals diagnosed with an ASD.The present study evaluated concerns about the toxic effects of organic-Hg exposure from Thimerosal(49.55%Hg by weight)in childhood vaccines by conducting a two-phased(hypothesis generating/hypothesis testing)study with documented exposure to varying levels of Thimerosal from vaccinations.Methods:A hypothesis generating cohort study was undertaken to evaluate the relationship between exposure to organic-Hg from a Thimerosal-containing Diphtheria-Tetanus-acellular-Pertussis(DTaP)vaccine in comparison to a Thimerosal-free DTaP vaccine administered,from 1998 through 2000,for the risk of ASD as reported in the Vaccine Adverse Event Reporting System(VAERS)database(phase I).A hypothesis testing case–control study was undertaken to evaluate the relationship between organic-Hg exposure from Thimerosal-containing hepatitis B vaccines administered at specific intervals in the first six months of life among cases diagnosed with an ASD and controls born between 1991 through 1999 in the Vaccine Safety Datalink(VSD)database(phase II).Results:In phase I,it was observed that there was a significantly increased risk ratio for the incidence of ASD reported following the Thimerosal-containing DTaP vaccine in comparison to the Thimerosal-free DTaP vaccine.In phase II,it was observed that cases diagnosed with an ASD were significantly more likely than controls to receive increased organic-Hg from Thimerosal-conta展开更多
目的:建立同时测定吡诺克辛钠滴眼液中不同抑菌剂(硫柳汞钠、羟苯甲酯、羟苯乙酯、羟苯丙酯)含量的HPLC法。方法:采用C18色谱柱(4.6 mm×150 mm,5μm),流动相为0.005 mol·L-1的醋酸铵溶液(每1000 m L中含三乙胺10 m L,用冰醋...目的:建立同时测定吡诺克辛钠滴眼液中不同抑菌剂(硫柳汞钠、羟苯甲酯、羟苯乙酯、羟苯丙酯)含量的HPLC法。方法:采用C18色谱柱(4.6 mm×150 mm,5μm),流动相为0.005 mol·L-1的醋酸铵溶液(每1000 m L中含三乙胺10 m L,用冰醋酸调节p H值至5.0±0.5)-乙腈(70︰30),流速为1.0 m L·min-1,检测波长为256 nm,柱温为30℃。结果:硫柳汞钠、羟苯甲酯、羟苯乙酯和羟苯丙酯在各自的检测质量浓度范围内线性关系良好,r为0.9993~1.0000,检测限分别为2.3、0.4、0.7、1.1 ng;4种抑菌剂的平均回收率为100.4%~102.7%(RSD≤1.4,n=9)。结论:本文建立的方法结果准确可靠,可作为吡诺克辛钠滴眼液中不同抑菌剂的质量控制方法。展开更多
基金This study was financially supported by the Dwoskin Family Foundation and the Selz Foundation.
文摘Background:Autism spectrum disorder(ASD)is defined by standardized criteria of qualitative impairments in social interaction,qualitative impairments in communication,and restricted and stereotyped patterns of behavior,interests,and activities.A significant number of children diagnosed with ASD suffer a loss of previously-acquired skills,which is suggestive of neurodegeneration or a type of progressive encephalopathy with an etiological pathogenic basis occurring after birth.To date,the etiology of ASD remains under debate,however,many studies suggest toxicity,especially from mercury(Hg),in individuals diagnosed with an ASD.The present study evaluated concerns about the toxic effects of organic-Hg exposure from Thimerosal(49.55%Hg by weight)in childhood vaccines by conducting a two-phased(hypothesis generating/hypothesis testing)study with documented exposure to varying levels of Thimerosal from vaccinations.Methods:A hypothesis generating cohort study was undertaken to evaluate the relationship between exposure to organic-Hg from a Thimerosal-containing Diphtheria-Tetanus-acellular-Pertussis(DTaP)vaccine in comparison to a Thimerosal-free DTaP vaccine administered,from 1998 through 2000,for the risk of ASD as reported in the Vaccine Adverse Event Reporting System(VAERS)database(phase I).A hypothesis testing case–control study was undertaken to evaluate the relationship between organic-Hg exposure from Thimerosal-containing hepatitis B vaccines administered at specific intervals in the first six months of life among cases diagnosed with an ASD and controls born between 1991 through 1999 in the Vaccine Safety Datalink(VSD)database(phase II).Results:In phase I,it was observed that there was a significantly increased risk ratio for the incidence of ASD reported following the Thimerosal-containing DTaP vaccine in comparison to the Thimerosal-free DTaP vaccine.In phase II,it was observed that cases diagnosed with an ASD were significantly more likely than controls to receive increased organic-Hg from Thimerosal-conta
文摘目的:建立同时测定吡诺克辛钠滴眼液中不同抑菌剂(硫柳汞钠、羟苯甲酯、羟苯乙酯、羟苯丙酯)含量的HPLC法。方法:采用C18色谱柱(4.6 mm×150 mm,5μm),流动相为0.005 mol·L-1的醋酸铵溶液(每1000 m L中含三乙胺10 m L,用冰醋酸调节p H值至5.0±0.5)-乙腈(70︰30),流速为1.0 m L·min-1,检测波长为256 nm,柱温为30℃。结果:硫柳汞钠、羟苯甲酯、羟苯乙酯和羟苯丙酯在各自的检测质量浓度范围内线性关系良好,r为0.9993~1.0000,检测限分别为2.3、0.4、0.7、1.1 ng;4种抑菌剂的平均回收率为100.4%~102.7%(RSD≤1.4,n=9)。结论:本文建立的方法结果准确可靠,可作为吡诺克辛钠滴眼液中不同抑菌剂的质量控制方法。
