Following first introduction of the use UWS (the UW organ preservation solution) for pancreatic islet isolation in 1989 , next also purification of the islets in UWS was presented in 1991, with two options.
One option was an iso-osmotic density gradient solution of Percoll in UWS. The second option was a density gradient solution created by increasing the Pentastarch concentration in UWS . Note that Pentastarch is a component of UWS.
Here one of these poster presentations, on Percoll-UWS :
Percoll in UW: efficient iso-osmotic canine and human islet purification. 3rd International Congress on Pancreatic and Islet Transplantation, Symposium on Artificial Insulin Delivery System, Lyon (France) June 6–8, 1991.
The poster was designed and produced on my personal Macintosh computer and Imagewriter dotmatrix printer, the night of June 3-4, 1991, using the MacDraw II application, inserted with a bar graph prepared in the Cricket Graph app.
The Apple Imagewriter-II matrix printer, allows printing landscape across a chain of several sheets of paper, strips, the width of the poster (here 3 sheets long). The strips of the poster (here 5 strips) were then glued on site along the perforation, creating a 36/41 inch poster.
Finally the RCM photo print of the purified human islets was pasted in the poster at the spot at the venue in Lyon.
Nowadays, it is a challenge opening such old Mac files … Luckily, I was able to open this MacDraw II poster file in LibreOffice Vanilla (open source app) with nice results. Only minor issues appeared with text spacing of the top row of the table , and the caption in the photo section. Some color is showing in the graphs , not evident on my grayscale equipment in the 90s. …. The poster image of 20240731 has been replaced by a remastered image , see Note Update 20240808 below.
Notes
1. Minneapolis 1989 Poster UW Solution Islet Isolation | 20220822 | Michel van der Burg | michelvanderburg•com | URL https://michelvanderburg.com/2022/08/22/minneapolis-1989-poster-uw-solution-islet-isolation-20220822/
2. Van der Burg MPM, Guicherit OR, Prins FA, Scherft JP, Frölich M, Gooszen HG. Percoll in UW: efficient iso-osmotic canine and human islet purification. 3rd International Congress on Pancreatic and Islet Transplantation, Symposium on Artificial Insulin Delivery System, Lyon (France) June 6–8, 1991.
3. Van der Burg MPM, Guicherit OR, Ploeg RJ, Scherft JP, Frölich M, Gooszen HG. Pentastarch in UW (SUW): a new method for complete islet purification. 3rd International Congress on Pancreatic and Islet Transplantation, Symposium on Artificial Insulin Delivery System, Lyon (France) June 6–8, 1991.
4. Van der Burg MPM, Guicherit OR, Scherft JP, Frölich M, Gooszen HG. Sigma’s industrial grade dextran is not suitable for islet isolation. 3rd International Congress on Pancreatic and Islet Transplantation, Symposium on Artificial Insulin Delivery System, Lyon (France) June 6–8, 1991.
5. Van der Burg MPM, Guicherit OR, Ebert R, Jansen JBMJ, Creutzfeld W, Lamers CBHW, Frölich M, Gooszen HG. CCK and GIP control of canine isolated islet function. 3rd International Congress on Pancreatic and Islet Transplantation, Symposium on Artificial Insulin Delivery System, Lyon (France) June 6–8, 1991.
6. Pancreatic islet transplantation Thesis Repository Leiden University | 20221125 | Michel van der Burg | Miracles•Media | URL https://michelvanderburg.com/2022/11/25/pancreatic-islet-transplantation-thesis-repository-leiden-university-20221125/
Update 20240808
Remastered poster ‘Lyon 1991 Percoll Poster | 20240731 • 20240808’
Following the first publication here last month (20240731) of the original 1991 MacDraw poster opened (converted) in LibreOffice Vanilla (1), I learned how to do some editing in the LibreOffice app to further restore poster layout details such as line spacing, and font style. An archive photo of another poster presentation in Pittsburgh in 1992 (that will be posted here soon) guided this restoration.
Current workflow :
1) opening the MacDraw II file in LibreOffice Vanilla
2) editing in in LibreOffice Vanilla , saving as LibreOffice Vanilla file (OpenDocument Drawing – extension odg).
3) opening the photo tiff image in the Mac’s Preview app, and copying the displayed image to the clipboard
4) pasting the clipboard image in the LibreOffice doc , and dragging to adjust size and location
5) exporting the file as PDF (image resolution 300 DPI ; PDF/A-1b ; PDF/UA).
6) Converting the PDF in the Preview app to TIFF 144 pixels/inch.
7) Adding caption , metadata etc with JPEG conversion in PhotoMill.
This 20240731 post now has this updated 20240808 – poster image.
Citation info : Percoll UWS Pancreatic Islet Purification • 20240731 | Michel van der Burg | michelvanderburg•com
