Environmental Engineering Reference
In-Depth Information
reach.human.beings..This.study.was.aimed.at.assessing.toxic.heavy.metal.
loads.in.different.tissues.(blood,.hair,.and.urine).of.children.with.autism,.in.
relation.to.their.health.and.performance.in.activities.requiring.physical.and.
mental.skills..More.speciically,.the.objectives.of.the.present.project.were.as.
follows:
.
1.. To. investigate. heavy. metal. loading. in. different. tissues. of. children.
with.autism.
.
2.. To.compare.heavy.metal.poisoning.of.children.from.Hong.Kong.and.
Mainland.China.
.
3.. To.test.and.analyze.the.changes.due.to.nutrient.and.food.allergy.in.
the.body.of.children.with.autism.
.
4.. To.analyze.the.gender.and.district.(residential.locations).difference,.
in.terms.of.heavy.metal.loading.in.children.with.autism.
MaterialsandMethods
Collection of Samples
The. experimental. plan. and. procedures. were. approved. by. the. Ethical.
Committee.of.Hong.Kong.Baptist.University..The.studied.subjects.were.chil-
dren. with. autism. who. came. to. Hong. Kong. Child. Development. Center. in.
recent. years. from. different. provinces. of. Mainland. China. and. Hong. Kong..
With.the.consent.of.their.parents,.samples.of.their.blood.(22.from.Mainland.
China,. and. 11. from. Hong. Kong),. hair. (100. and. 50),. and. urine. (86. and. 15).
were. collected. 6.h. after. administrating. meso-2,. 3-dimercapto-succinicacid.
(DMSA).to.the.children,.in.order.to.test.the.concentration.level.of.heavy.met-
als.present.in.the.samples.(arsenic,.cadmium,.lead,.and.mercury).
Analyses of Heavy Metals
The.samples.were.sent.to.Doctor's.Data.Lab.(the.United.States).where,.using.
the. inductively. coupled. plasma. mass. spectroscopy. (ICP-MS),. they. were.
tested.for.detecting.the.presence.of.four.heavy.metals.
Blood IgG Test
Blood. IgG. is. an. immunoglobulin. associated. with. delayed. allergic. (hyper-
sensitivity). reactions.. The. Blood. IgG. Test. provided. by. The. Great. Plains.
Laboratory,.Inc.,.Lenexa,.Kansas,.was.used.to.test.food.allergy.of.these.chil-
dren.with.autism.
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