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Improved Medical Education and Basic
sciences
for Better Medical practicing
ImproveMEd
Primjena MALDI-TOF u dijagnostici uzročnika zaraznih bolest
Domagoj Drenjancevic
Identifikacija od mikroorganizam
• otkrivanje od fenotipske karakteristike
• Gram mrlja, kolonija
• morfologija, mikroskopski pregled, razlika u rastu na selektivan mediji i razne
biokemijske testovi
• priručnik ili automatizirani metode
• molekularna dijagnostičke metode
• 16S ribosomalni RNK sekvencioniranje
• stvarno vrijeme PCR detekcija odabranih geni
• složen i skup
• MALDI-TOF MS
Bizzini A, Greub G. Clin Microhiol Zaraziti 2010; 16: 1614-1619
MALDI-TOF MS: Matrix-pomoć laserska desorpcija
ionizacija vrijeme od leta masovno spektrometrija -
prednosti
• provedba u klinički mikrobiologija laboratorija - eASE od koristiti
• Izvođenje MALDI-TOF MS bazi bakterija identifikacija s rutina uzorci:
• >90% - učinkovit
• Pouzdan Postupak za identifikaciju bakterije iz klinički uzorci
• cijena-efikasnost:
• na najmanje ¼ od the cijena od konvencionalne metode
• (€ 2.44 s MALDITOF MS vs 4,60 do 13,85 € s automatskom identifikacijom
• sistem Ubrzati
• od 6 min, dok
• konvencionalnih tehnika - isti identifikacije u 5-48 h
• antimikrobna položaj upravnika:
• limenka se koristiti zajedno s lokalnim otpornosti na antibiotike podaci
• učinkovito optimizirati rano empirijski antibiotik liječenje
Tijek rada fo MALDI-TOF MS
Clark AE i sur. Clin, Microhiol, Rev 2013; 26: 547-603
Načelo MALDI-TOF
molekularna masa
Vrijeme leta
Snaga MALDI TOF MS: studije specifičnih vrsta
• teoretski nema ograničenja na identifikaciju sposobnost: dao gotovo 100%
ispravan identifikacijaa
• Neisseria
• klostridije
• mikobakterije
• Nonfermenters
• Salmonela
• viridanskom streptokoke
• Helicobacter pylori
• kvasci (96% 250 kliničke Candida izolirati)
• nitastoj gljive i dermatophytes - Unaprijediti poboljšanja u baze podataka i pre-
analitičke protokoli potreban
Snaga MALDI TOF MS: studije specifičnih vrsta
• izravna identifikacija patogena u the uzorak Sama, bez kulture korak
66-90% od ispravan identifikacija
Snaga MALDI TOF MS: antibiotik osjetljivost
testiranje - u napredak
• Sposobnost masenom spektrometrijom razlikovati meticilin-osjetljiv S.
aureus iz meticilin-otporan S. aureus
• various bakterijska antimikrobno ciljanje molekule (Kao što je b-
laktamaza methylases i izviranje pumpe) Možda bi moglo biti
otkrivena
• detekcija od Panton-Voljeni leukocidin osjetljivost od 100% i 90,6%
specifičnost
MALDI-RE (SEQUENOM) i elektro
ionizacija masa spektrometrija (ESI-MS)
• alternativa tehnologije za kucanje
• analizirati amplifikacijski produkti PCR
Emonet S pri al, Clin Microhiol Zaraziti2010; 16: 1604-1613
MALDI - TOF Laboratorij integracija
E
x
P
E
C
T
A
T
ja
O
N
S
Zaključci
• Brzina, jednostavnost korištenja i nisko po uzorku cijena
• revolucija u klinički mikrobna dijagnostika
Primjena MALDI-TOF u dijagnostici uzročnika zaraznih bolest

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Primjena MALDI-TOF u dijagnostici uzročnika zaraznih bolest

  • 1. Improved Medical Education and Basic sciences for Better Medical practicing ImproveMEd Primjena MALDI-TOF u dijagnostici uzročnika zaraznih bolest Domagoj Drenjancevic
  • 2. Identifikacija od mikroorganizam • otkrivanje od fenotipske karakteristike • Gram mrlja, kolonija • morfologija, mikroskopski pregled, razlika u rastu na selektivan mediji i razne biokemijske testovi • priručnik ili automatizirani metode • molekularna dijagnostičke metode • 16S ribosomalni RNK sekvencioniranje • stvarno vrijeme PCR detekcija odabranih geni • složen i skup • MALDI-TOF MS Bizzini A, Greub G. Clin Microhiol Zaraziti 2010; 16: 1614-1619
  • 3. MALDI-TOF MS: Matrix-pomoć laserska desorpcija ionizacija vrijeme od leta masovno spektrometrija - prednosti • provedba u klinički mikrobiologija laboratorija - eASE od koristiti • Izvođenje MALDI-TOF MS bazi bakterija identifikacija s rutina uzorci: • >90% - učinkovit • Pouzdan Postupak za identifikaciju bakterije iz klinički uzorci • cijena-efikasnost: • na najmanje ¼ od the cijena od konvencionalne metode • (€ 2.44 s MALDITOF MS vs 4,60 do 13,85 € s automatskom identifikacijom • sistem Ubrzati • od 6 min, dok • konvencionalnih tehnika - isti identifikacije u 5-48 h • antimikrobna položaj upravnika: • limenka se koristiti zajedno s lokalnim otpornosti na antibiotike podaci • učinkovito optimizirati rano empirijski antibiotik liječenje
  • 4. Tijek rada fo MALDI-TOF MS
  • 5. Clark AE i sur. Clin, Microhiol, Rev 2013; 26: 547-603
  • 7. Snaga MALDI TOF MS: studije specifičnih vrsta • teoretski nema ograničenja na identifikaciju sposobnost: dao gotovo 100% ispravan identifikacijaa • Neisseria • klostridije • mikobakterije • Nonfermenters • Salmonela • viridanskom streptokoke • Helicobacter pylori • kvasci (96% 250 kliničke Candida izolirati) • nitastoj gljive i dermatophytes - Unaprijediti poboljšanja u baze podataka i pre- analitičke protokoli potreban
  • 8. Snaga MALDI TOF MS: studije specifičnih vrsta • izravna identifikacija patogena u the uzorak Sama, bez kulture korak 66-90% od ispravan identifikacija
  • 9. Snaga MALDI TOF MS: antibiotik osjetljivost testiranje - u napredak • Sposobnost masenom spektrometrijom razlikovati meticilin-osjetljiv S. aureus iz meticilin-otporan S. aureus • various bakterijska antimikrobno ciljanje molekule (Kao što je b- laktamaza methylases i izviranje pumpe) Možda bi moglo biti otkrivena • detekcija od Panton-Voljeni leukocidin osjetljivost od 100% i 90,6% specifičnost
  • 10. MALDI-RE (SEQUENOM) i elektro ionizacija masa spektrometrija (ESI-MS) • alternativa tehnologije za kucanje • analizirati amplifikacijski produkti PCR Emonet S pri al, Clin Microhiol Zaraziti2010; 16: 1604-1613
  • 11. MALDI - TOF Laboratorij integracija E x P E C T A T ja O N S
  • 12. Zaključci • Brzina, jednostavnost korištenja i nisko po uzorku cijena • revolucija u klinički mikrobna dijagnostika