Name: the mods method for diagnosis of tuberculosis and multidrug resistant tuberculosis
Uploaded: 2008-08-11T14:00:00
Description: Watch this Scientific Journal Video about The MODS method for diagnosis of tuberculosis and multidrug resistant tuberculosis at JoVE.com

Wir möchten Sean Fitzwater und Carmen Giannina Luna Colombo für die Tuberkulose-Wachstum Zeitraffer-Video-Segment zu bestätigen. Wir danken Marty Roper für ihre gründliche und sehr gutes Feedback während der Bearbeitung und Co-Autor der User Guide, von der die aktuelle Protokoll übernommen meist wörtlich wurde. Die Produktion dieses Video wurde von den NIH / Fogarty International Center finanziert <a href="http://www.fic.nih.gov/">http://www.fic.nih.gov/</a> David AJ Moore trug als Wellcome Trust Clinical Research Fellow in Tropenmedizin und Reader in Infectious Diseases am Imperial College London (Fellowship Auszeichnung Zahl 078067/Z/05). Mark F. Brady beigetragen als NIH / Fogarty International Center Research Fellow.

<ol><li> Stammlösungen <ol><li> Phosphatpuffer Lager <ol><li> Mix 950ml Natrium dibasischen Lösung (9.47g von Natriumdihydrogenphosphat in 1000ml destilliertem Wasser gelöst) mit 950ml Kaliumphosphat einbasischen Lösung (9.07g Kaliumphosphat einbasischen in 1000ml destilliertem Wasser gelöst) und rühren; zurückzuhalten 50ml jeder Lösung anpassen pH ggf. </li><li> Der pH-Wert auf 6,8 ± 0,2: add Natriumdihydrogenphosphat-Lösung auf pH-Wert anzuheben, fügen Kaliumphosphat einbasischen Lösung für niedrige...

<ol>
	<li>Arias, M. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Clinical+evaluation+of+the+microscopic-observation+drug-susceptibility+assay+for+detection+of+tuberculosis.">Clinical evaluation of the microscopic-observation drug-susceptibility assay for detection of tuberculosis.</a> Clin Infect Dis. 44, 674-674 (2007).</li><li>Caviedes, L. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Rapid,+efficient+detection+and+drug+susceptibility+testing+of+Mycobacterium+tuberculosis+in+sputum+by+microscopic+observation+of+broth+cultures.+The+Tuberculosis+Working+Group+in+Peru.">Rapid, efficient detection and drug susceptibility testing of Mycobacterium tuberculosis in sputum by microscopic observation of broth cultures. The Tuberculosis Working Group in Peru.</a> J Clin Microbiol. 38, 1203-1203 (2000).</li><li>Caviedes, L., Moore, D. A. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Introducing+MODS:+a+low-cost,+low-tech+tool+for+high-performance+detection+of+tuberculosis+and+multidrug+resistant+tuberculosis.">Introducing MODS: a low-cost, low-tech tool for high-performance detection of tuberculosis and multidrug resistant tuberculosis.</a> Indian J Med Microbiol. 25, 87-87 (2007).</li><li>Caws, M. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Evaluation+of+the+MODS+culture+technique+for+the+diagnosis+of+tuberculous+meningitis.">Evaluation of the MODS culture technique for the diagnosis of tuberculous meningitis.</a> PLoS ONE. 2, e1173-e1173 (2007).</li><li>Ejigu, G. S. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Microscopic-observation+drug+susceptibility+assay+provides+rapid+and+reliable+identification+of+MDR-TB.">Microscopic-observation drug susceptibility assay provides rapid and reliable identification of MDR-TB.</a> Int J Tuberc Lung Dis. 12, 332-332 (2008).</li><li>Kim, S. J. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Risk+of+occupational+tuberculosis+in+National+Tuberculosis+Programme+laboratories+in+Korea.">Risk of occupational tuberculosis in National Tuberculosis Programme laboratories in Korea.</a> Int J Tuberc Lung Dis. 11, 138-138 (2007).</li><li>Mello, F. C. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Clinical+evaluation+of+the+microscopic+observation+drug+susceptibility+assay+for+detection+of+Mycobacterium+tuberculosis+resistance+to+isoniazid+or+rifampin.">Clinical evaluation of the microscopic observation drug susceptibility assay for detection of Mycobacterium tuberculosis resistance to isoniazid or rifampin.</a> J Clin Microbiol. 45, 3387-3387 (2007).</li><li>Moore, D. A. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Future+prospects+for+the+MODS+assay+in+multidrug-resistant+tuberculosis+diagnosis.">Future prospects for the MODS assay in multidrug-resistant tuberculosis diagnosis.</a> Future Microbiol. 2, 97-97 (2007).</li><li>Moore, D. A. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Infrequent+MODS+TB+culture+cross-contamination+in+a+high-burden+resource-poor+setting.">Infrequent MODS TB culture cross-contamination in a high-burden resource-poor setting.</a> Diagn Microbiol Infect Dis. 56, 35-35 (2006).</li><li>Moore, D. A. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Microscopic-observation+drug-susceptibility+assay+for+the+diagnosis+of+TB.">Microscopic-observation drug-susceptibility assay for the diagnosis of TB.</a> N Engl J Med. 355, 1539-1539 (2006).</li><li>Moore, D. A. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Microscopic+observation+drug+susceptibility+assay,+a+rapid,+reliable+diagnostic+test+for+multidrug-resistant+tuberculosis+suitable+for+use+in+resource-poor+settings.">Microscopic observation drug susceptibility assay, a rapid, reliable diagnostic test for multidrug-resistant tuberculosis suitable for use in resource-poor settings.</a> J Clin Microbiol. 42, 4432-4432 (2004).</li><li>Moore, D. A., Roper, M. H. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Diagnosis+of+smear-negative+tuberculosis+in+people+with+HIV/AIDS.">Diagnosis of smear-negative tuberculosis in people with HIV/AIDS.</a> Lancet. 370, 1033-1033 (2007).</li><li>Oberhelman, R. A. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Improved+recovery+of+Mycobacterium+tuberculosis+from+children+using+the+microscopic+observation+drug+susceptibility+method.">Improved recovery of Mycobacterium tuberculosis from children using the microscopic observation drug susceptibility method.</a> Pediatrics. 118, e100-e100 (2006).</li><li>Palomino, J. C., Martin, A., Portaels, F. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=MODS+assay+for+the+diagnosis+of+TB.">MODS assay for the diagnosis of TB.</a> N Engl J Med. 356, 188-189 (2007).</li><li>Park, W. G., Bishai, W. R., Chaisson, R. E., Dorman, S. E. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Performance+of+the+microscopic+observation+drug+susceptibility+assay+in+drug+susceptibility+testing+for+Mycobacterium+tuberculosis.">Performance of the microscopic observation drug susceptibility assay in drug susceptibility testing for Mycobacterium tuberculosis.</a> J Clin Microbiol. 40, 4750-4750 (2002).</li><li>Shiferaw, G. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Evaluation+of+microscopic+observation+drug+susceptibility+assay+for+detection+of+multidrug-resistant+Mycobacterium+tuberculosis.">Evaluation of microscopic observation drug susceptibility assay for detection of multidrug-resistant Mycobacterium tuberculosis.</a> J Clin Microbiol. 45, 1093-1093 (2007).</li><li>Tovar, M. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Improved+diagnosis+of+pleural+tuberculosis+using+the+microscopic-+observation+drug-susceptibility+technique.">Improved diagnosis of pleural tuberculosis using the microscopic- observation drug-susceptibility technique.</a> Clin Infect Dis. 46, 909-909 (2008).</li><li>Vargas, D. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Diagnosis+of+sputum-scarce+HIV-associated+pulmonary+tuberculosis+in+Lima,+Peru.">Diagnosis of sputum-scarce HIV-associated pulmonary tuberculosis in Lima, Peru.</a> Lancet. 365, 150-150 (2005).</li></ol>

Der MODS Test ist mit beschränkten Ressourcen angestrebt. Zum ersten Mal bringt MODS die Fähigkeit zur schnellen flüssigen Kultur Erkennung von Tuberkulose und multiresistenten Tuberkulose mit beschränkten Ressourcen knapp 3 $ pro Test. MODS ist ein nicht-proprietäres, iterative Methodik und die MODS-Community ist immer in Verbesserungen, die andere Labors haben es geschafft, interessiert. Ein immer wiederkehrendes Problem ist die Biosicherheit von flüssigen Medien Kultur der Tuberkulose, weil Flüssigkeiten verschüttet oder ...

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		<div>
		<table border="1">
		<thead>
		<tr>
		<th>Material Name</th>
		<th>Type</th>
		<th>Company</th>
		<th>Catalogue Number</th>
		<th>Comment</th>
		</tr>
		</thead>
		<tbody>
		
<tr>
<td>Refrigerator/ freezer</td>
<td>Equipment</td>
<td>&nbsp;</td>
<td>&nbsp;</td>
<td>to store pre-prepared broth and antibiotic stocks</td>
</tr>
<tr>
<td>Vortex</td>
<td>Equipment</td>
<td>&nbsp;</td>
<td>&nbsp;</td>
<td>to aid sputum decontamination</td>
</tr>
<tr>
<td>Centrifuge</td>
<td>Equipment</td>
<td>&nbsp;</td>
<td>&nbsp;</td>
<td>for sputum concentration; capable of reaching 3000 g; does not need to be refrigerated, but MUST be biosafe (buckets can be sealed)</td>
</tr>
<tr>
<td>Incubator (37 degree C)</td>
<td>Equipment</td>
<td>&nbsp;</td>
<td>&nbsp;</td>
<td>for culture; need not be CO2 enriched</td>
</tr>
<tr>
<td>Inverted light microscope</td>
<td>Microscope</td>
<td>&nbsp;</td>
<td>&nbsp;</td>
<td>to read MODS plates</td>
</tr>
<tr>
<td>Autoclave</td>
<td>Equipment</td>
<td>&nbsp;</td>
<td>&nbsp;</td>
<td>to sterilize media, PBS and used plates</td>
</tr>
<tr>
<td>Balance</td>
<td>Equipment</td>
<td>&nbsp;</td>
<td>&nbsp;</td>
<td>to weigh isoniazid, rifampicin and NALC</td>
</tr>
<tr>
<td>Middlebrook 7H9 broth (Difco)</td>
<td>Reagent</td>
<td>Fisher</td>
<td>DF0713-17-9</td>
<td>500gr/bottle; culture media base</td>
</tr>
<tr>
<td>Casitone (pancreatic digest casein)</td>
<td>Reagent</td>
<td>Fisher</td>
<td>DF0259&#x2010;17&#x2010;9</td>
<td>500gr/bottle; culture media base</td>
</tr>
<tr>
<td>Glycerol (glycerin) lyophilized</td>
<td>Reagent</td>
<td>Sigma</td>
<td>G&#x2010;33&#x2010;500</td>
<td>500ml/bottle; culture media base</td>
</tr>
<tr>
<td>PANTA (Antibiotic mixture lyophilized BD) </td>
<td>Reagent</td>
<td>Fisher</td>
<td>B4345114</td>
<td>6 bottles/pack; antibiotic media supplement</td>
</tr>
<tr>
<td>OADC (Middlebrook OADC enrichment BD)</td>
<td>Reagent</td>
<td>Fisher</td>
<td>B11886</td>
<td>10 x 20ml/pack; nutritional media supplement</td>
</tr>
<tr>
<td>Dimethyl sulphoxide (Hibri-Max)</td>
<td>Reagent</td>
<td>Sigma</td>
<td>D-2650</td>
<td>100ml/bottle; to prepare rifampicin stock</td>
</tr>
<tr>
<td>Antibiotic stocks: isoniazid</td>
<td>Reagent</td>
<td>Sigma</td>
<td>I-3377</td>
<td>50gr/bottle; direct susceptibility testing</td>
</tr>
<tr>
<td>Antibiotic stocks: rifampicin</td>
<td>Reagent</td>
<td>Sigma 99</td>
<td>R-3501</td>
<td>1gr/bottle; direct susceptibility testing</td>
</tr>
<tr>
<td>Sodium hydroxide (pellets)</td>
<td>Reagent</td>
<td>Sigma</td>
<td>221465</td>
<td>500gr/bottle; sputum decontamination</td>
</tr>
<tr>
<td>Sodium citrate (trisodium salt dihydrate)</td>
<td>Reagent</td>
<td>Sigma</td>
<td>S-4641</td>
<td>500gr/bottle; sputum decontamination</td>
</tr>
<tr>
<td>N-acetyl-L-cysteine</td>
<td>Reagent</td>
<td>Sigma</td>
<td>A-7250</td>
<td>50gr/bottle; sputum decontamination</td>
</tr>
<tr>
<td>Potassium Phosphate Monobasic crystal. KH2PO4</td>
<td>Reagent</td>
<td>Sigma</td>
<td>P0662</td>
<td>500gr/bottle; sputum decontamination</td>
</tr>
<tr>
<td>Sodium Phosphate Dibasic, anhydrous. Na2HPO4</td>
<td>Reagent</td>
<td>Sigma</td>
<td>S0876</td>
<td>500gr/bottle; sputum decontamination</td>
</tr>
<tr>
<td>Sodium hypochlorite</td>
<td>Reagent</td>
<td>household bleach</td>
<td>&nbsp;</td>
<td>to discard contaminated waste</td>
</tr>
<tr>
<td>15ml centrifuge tubes (polypropylene 15ml Falcon 35&#x2010;2096)</td>
<td>Consumable</td>
<td>Fisher</td>
<td>14&#x2010;959&#x2010;49B</td>
<td>500ea/case; for sputum decontamination and concentration</td>
</tr>
<tr>
<td>24 well plates (Plates Tissue 24 wells BD Falcon 35&#x2010;3047)</td>
<td>Consumable</td>
<td>Fisher</td>
<td>08-772-1</td>
<td>50 plates/case; for culture and reading</td>
</tr>
<tr>
<td>Sealable polythene bags 6 X 6 &#x201C; (ziplock)</td>
<td>Consumable</td>
<td>&nbsp;</td>
<td>&nbsp;</td>
<td>for biosecurity to contain 24 well plate</td>
</tr>
<tr>
<td>Glass tubes with lid (16 x 100mm and 18 x 145mm)</td>
<td>Consumable</td>
<td>VWR</td>
<td>47729-583</td>
<td>500 tubes/case; to store aliquots of prepared broth</td>
</tr>
<tr>
<td>Screw cap microcentrifuge tubes (1.5ml)</td>
<td>Consumable</td>
<td>Fisher</td>
<td>05&#x2010;669&#x2010;22</td>
<td>1000ea/case; to store aliquots of antibiotic stocks</td>
</tr>
<tr>
<td>0.22&#x03BC;m filters (aqueous solvents) Syringe filter Millex blue</td>
<td>Consumable</td>
<td>Fisher</td>
<td>SLGL 025 OS</td>
<td>50 units/case; to filter antibiotic stocks</td>
</tr>
<tr>
<td>0.22&#x03BC;m filters (organic solvents) Syringe filter Millex yellow</td>
<td>Consumable</td>
<td>Fisher</td>
<td>SLGV 033 RS</td>
<td>50 units/case; to filter antibiotic stocks</td>
</tr>
<tr>
<td>Disposable Pasteur pipettes borosilicate glass 9&#x2033;</td>
<td>Consumable</td>
<td>Fisher</td>
<td>13&#x2010;678&#x2010;20C</td>
<td>720ea/case; to mix PANTA with media mix</td>
</tr>
<tr>
<td>Aerosol barrier tips 1000&#x2010;1300&#x03BC;l</td>
<td>Consumable</td>
<td>Fisher</td>
<td>02&#x2010;707&#x2010;51</td>
<td>1000ea/pk; to dispense media into plate</td>
</tr>
<tr>
<td>USA Scientific Tips One 1&#x2010;200&#x03BC;l yellow tips</td>
<td>Consumable</td>
<td>Fisher</td>
<td>1111&#x2010;0006</td>
<td>1000 tips/bag; to dilute antibiotic stocks</td>
</tr>		</tbody>
		</table>
		</div>

the mods method for diagnosis of tuberculosis and multidrug resistant tuberculosis

Patienten mit aktiver Lungentuberkulose (TB) infiziert 10-15 anderen Personen pro Jahr, was die Diagnose einer aktiven TB unerlässlich, sowohl Heilung des Patienten und die Verhinderung neuer Infektionen. Darüber hinaus bedeutet die Entstehung von multiresistenten Tuberkulose (MDRTB), die Detektion von Resistenzen ist notwendig für die Ausbreitung von resistenten Stämmen. Die mikroskopische Beobachtung-Drug-Anfälligkeit (MODS) Test ist ein low-cost, low-tech Werkzeug für High-Performance-Nachweis von TB und MDRTB. Der MODS Test basiert auf drei Prinzipien: 1) Mycobacterium tuberculosis (MTB) wächst schneller in flüssigen Medien als auf festen Medien 2) mikroskopische MTB Wachstum kann früher in flüssigen Medien als das Warten auf das makroskopische Aussehen der Kolonien auf festen Medien erkannt werden, und dass das Wachstum ist charakteristisch für MTB, so dass sie von atypischen Mykobakterien oder Pilz-oder Bakterienbefall 3) unterschieden werden die Medikamente Isoniazid und Rifampicin in den MODS Test kann aufgenommen werden, um für den gleichzeitigen direkten Nachweis von MDRTB ermöglichen, so dass kein Bedarf für Subkultur zu erfüllen eine indirekte Sensibilitätstest testen. Konkurrierende aktuelle Diagnostik zeichnen sich durch geringe Empfindlichkeit mit Sputum, lange Wartezeiten bis zur Diagnose mit festen Medien Kultur, prohibitiv hohen Kosten mit vorhandenen flüssigen Medien Kultur Methoden und die Notwendigkeit, Subkultur für indirekte Drogen Empfindlichkeitsprüfung zu MDRTB erkennen Sie behindert. Im Gegensatz dazu hat die nicht-proprietäre MODS-Methode eine hohe Empfindlichkeit für TB und MDRTB, ist eine relativ schnelle Kultur-Methode ermöglicht die gleichzeitige Medikament Empfindlichkeitsprüfung für MDRTB, und ist zugänglich mit beschränkten Ressourcen knapp 3 $ für den Test für TB und MDRTB.

Watch this Scientific Journal Video about The MODS method for diagnosis of tuberculosis and multidrug resistant tuberculosis at JoVE.com

The MODS method for diagnosis of tuberculosis and multidrug resistant tuberculosis

Die mikroskopische Beobachtung-Drug-Anfälligkeit (MODS) Test ist ein low-cost, low-tech Werkzeug für High-Performance-Nachweis von Tuberkulose (TB) und multiresistenter Tuberkulose (MDRTB). Dieses Video beschreibt die MODS flüssigen Medien Kultur-Methode.

Der MODS Verfahren zur Diagnose von Tuberkulose und multiresistente Tuberkulose

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