JoVE manuscript accepted on use of Inkjet Printing to perform antimicrobial susceptibility testing for single and drug combinations and follow up time-kill study methodology
Postdoctoral fellow, Thea Brennan-Krohn, recently had a manuscript accepted in the Journal of Visualized Experimentation, aka JoVE. The title of the manuscript and link to the abstract are "Antimicrobial Synergy Testing by the Inkjet Printer-Assisted Automated Checkerboard Array and the Manual Time-Kill Method." We have been fielding a lot of questions over the past two years about implementation of inkjet printing antimicrobial susceptibility testing technology and thought it would be useful to share a video of the technique as well as classic time-kill analysis to analyze antimicrobial synergy. We are excited to learn that the CDC has decided to implement the technology in the near future in their Antimicrobial Resistance Laboratory Network (ARLN), initially to test, the combination of ceftazidime-avibactam and aztreonam for activity against multidrug-resistant Gram-negatives.
Postdoctoral fellow KP Smith discusses how to use "time to positivity" information in interpreting the meaning of blood cultures. His blog article is titled: "Predictive Value of Blood Culture Time to Positivity."
We have been taking advantage of Addgene for years. About to deposit about twenty plasmids form Yoon-Suk Kang's bioreporter tool kit. Assembling plasmid maps in SnapGene. Thank you, Addgene!
Apramycin scaffold exploration using novel glycochemistry and SAR studies to enhance activity against Acinetobacter baumannii and other multidrug-resistant Gram-negative pathogens.
KP Smith Speaking tomorrow at Harvard Antimicrobial Resistance Laboratory Network as well as Broad Institute collaborator, Alejandro Pironti
Congratulations to postdoctoral fellow, Yoon-Suk Kang, on acceptance of his manuscript in Infection and Immunity. The manuscript is titled: "Brucella neotomae recapitulates attributes of zoonotic human disease in a murine infection model." One of my favorite figures are images of tdTomato-labeled Brucella detected by confocal microscopy replicating in the middle of a liver granulomas visualized by counterstaining with H&E. In contrast to wild type organisms, virB4 mutant bacteria are found as single cells in sinusoids presumably within Kuffpfer cells. Wild type bacteria are found at high levels in mouse thymus at all time points examined; virB4 mutant bacteria are undetectable in thymus. B. neotomae induces a Th-1 immune response. More information in the manuscript.
Excel and Powerpoint have been banned for figure preparation. Converted my lab over to GraphPad Prism. A very well designed graphing and statistics program. Love several features including the ability to apply standard dimension formats for charts, and wand tool to covert charts to exact format used previously. Application of statistics to data is facile, also a wand tool to apply the same statistics to multiple tables. Grateful to Assay and Drug Development Technology for their requirement (recommendation?) to use this or similar programs in figure preparation. Powerpoint never worked well for figure preparation and conversion to vector-graphics format, for use with illustrator was a nightmare. Now we just start out using a freeware vector graphics program or Adobe Illustrator directly. Greatly speeds up manuscript preparation.
P.S. I have no financial relationship with GraphPad Prism, but it is a good product so therefore my endorsement!
Evaluation of apramycin activity against methicillin-resistant, methicillin-sensitive, and vancomycin-intermediate Staphylococcus aureus clinical isolates. Now online, congrats to Kat Truelson, see previous post.
Kirby Lab Blog