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Het nieuwe Hulpmiddel CSI analyseert Antilichamen
Dinsdag, 29 April, 2008
De nieuwe methode analyseert antilichamen. Elke persoon heeft een unieke antilichamenstreepjescode die van bloed, speeksel of andere lichamelijke vloeistoffen kan worden verzameld. De antilichamen zijn proteïnen die door het lichaam worden gebruikt van virussen af te weren of routine fysiologisch huishouden uit te voeren. „DNA is een fysieke code die u… beschrijft en in menig opzicht zo uw antilichamen is,“ zei Dr. Vicki Thompson, een chemische ingenieur bij het Nationale Laboratorium van Idaho dat met andere onderzoekers heeft gewerkt om de test in de afgelopen 10 jaar te perfectioneren. De wetenschappers zeggen een antilichamenprofiel kan resultaten goedkoper opleveren sneller en en op het gebied worden uitgevoerd met minimale opleiding. De nationale laboratoriumbeheerders hebben de technologie uitsluitend aan de Wetenschappen LLC van de Identiteit in Alpharetta, GA vergunning gegeven. Het opstarten van Georgië is beginnen van plan ontwikkelend testuitrustingen en opleidend aan wetshandhaving, de militaire en gerechtelijke en medische laboratoria rond de bol door daling van 2009. Ken Haas, ondervoorzitter van marketing, zegt de test niet bedoeld is om het testen van DNA, de erkende goudstandaard in menselijke identificatie te verdringen. Maar Haas zegt de waarde van antilichaam het profileren als onderzoekshulpmiddel is helpen van een misdaadscène steek houden, de de bloedslepen of spat van veelvoudige slachtoffers regelen of lichaamsdelen op een slagveld of bij de scène van een ramp zoals Sept. sneller identificeren. 11, 2001 aanvallen. Het kan het aantal tests ook verminderen van DNA die in een onderzoek worden vereist, potentieel besparend tijd en geld en verlichtend de het groeien achterstand, zei hij. De resultaten van tests aangaande bloedserum of droog bloed kunnen in twee uren, een fractie van de tijd klaar zijn het neemt om gelijkaardige tests voor de gelijken van DNA in werking te stellen. Nochtans, is een belangrijk nadeel voor nu het gebrek aan een nationaal antilichamengegevensbestand. That’s one of the reasons antibody testing is not likely to be used at the outset of an investigation to link suspects to crimes or establish probable cause to justify issuing an arrest warrant. Company officials say beta testing by forensic scientists at simulated crime scenes at seven locations across the country has produced positive results and reinforced the notion that an eager market awaits. The company declined to say where the testing occurred, citing nondisclosure agreements with participants. The company has not yet put a price tag on the field kits. But executives say their product will be significantly cheaper than DNA analysis, which can run anywhere from $500 to $3,000 per sample because it requires sophisticated equipment and lab time. “We don’t see this yet as a product to take to court,” said Gene Venesky, vice president of Identity Sciences. “But we do see this as a way to get the case moving forward toward a final, legal resolution.” Still, some forensics experts say that kind of scrutiny may be unavoidable, especially if the test takes on a bigger crime-fighting role. “There is a lot of potential here,” said Lawrence Kobilinsky, a DNA expert and chairman of the Department of Forensic Science at John Jay College of Criminal Justice in New York. “Any time you can develop a quick and easy screen for something … that is a good thing.” But Kobilinsky and others caution that it takes time for any new forensic test to gain acceptance where it matters most - state and federal courthouses. If the new tests begin appearing in police reports, defense attorneys can be expected to challenge their validity. “If these tests are going to get to the courtroom, which I think is inevitable, they are not going to be admissible as evidence until they can be proven reliable, accurate” and trustworthy, Kobilinsky said. “My bet is that a crime scene unit is going to be very careful about using this if it’s not going to be of any benefit in litigation.” Have Your Say: New CSI Tool Analyzes Antibodies Please note, only selected comments will be published. Or discuss this report in our our new forums This entry was posted on Tuesday, April 29th, 2008 at 5:15 am and is filed under Science & Technology News . You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site. |
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