Percoll UWS Pancreatic Islet Purification • 20240731

Lyon 1991 Percoll Poster | 20240731 • 20240808 | Michel van der Burg | michelvanderburg•com | TakeNode 8cd3161a-2405-4586-aaeb-08096e1a636e

Following first introduction of the use of 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 The poster image of 20240731 has been replaced by a remastered image , see Note Update 20240808 below.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

Lancet Letter 1989 UW Solution Islet Isolation | 20220823

Lancet Letter 1989 UW Solution Islet Isolation | 20220823 | Michel van der Burg | michelvanderburg•com | June 1989 preparing first submission for publication as letter in the Lancet medical journal the new concept of using the UW solution ( the University of Wisconsin organ preservation solution) for isolation and complete purification of islets of Langerhans in the laboratory for transplantation in diabetic patients. Later that year that exciting discovery was presented at meetings in Minneapolis, USA, and Barcelona, Spain. Details in yesterday’s post. Submission for publication as a letter in the Lancet had had no succes 😉
Final draft text produced on my personal Macintosh ED and Imagewriter-II matrix printer with Geneva font.

TakeNode ID: 9f11f523-9b5f-47e8-be99-b242a1ba9b40

TAGS #Lancet #journal #UWS #UW #solution #preservation #organ #islet #isletofLangerhans #Langerhans #pancreas #poster #concept #purification #transplantation #congress #meeting #Minneapolis #Netherlands #Leiden #LUMC #AZL #Barcelona #Spain #LibreOffice #Vanilla #MacDraw #MacintoshED #512K #Imagewriter #TakeNode #1Memo #michelvanderburg

Minneapolis 1989 Poster UW Solution Islet Isolation | 20220822

Minneapolis 1989 Poster • 20240804 • michelvanderburg•com

September 1989 at a symposium of two international societies in Minneapolis, USA (1) , I presented this first poster on the ‘ invention ‘ of using the UW solution ( the University of Wisconsin organ preservation solution) during pancreatic islet isolation, with the exciting discovery of near-complete purification of islets of Langerhans in the laboratory for transplantation in diabetic patients.

The next month at a meeting in Barcelona, Spain, this rather radical new concept was introduced (2, 3). June 1989 submission for publication as a letter in the Lancet had had no succes 😉

Poster designed and produced on my personal Macintosh ED and Imagewriter-II matrix printer, allowing full width printing over multiple pages in landscape (a low cost do-it-yourself discovery by me, at a time when posters were prepared on poster boards by graphical professionals using photography and special lettering techniques for around $400). Original MacDraw II file conversion with LibreOffice Vanilla.

Notes

1) Van der Burg MPM, Gooszen HG, Ploeg RJ, Scherft JP, Field MJ, Guicherit OR, Terpstra JL, Van de Woude FT, Frölich M, Bruijn JA. Comparison of islet isolation techniques in dogs: Over 90% purified islets using UW solution. 4th International Symposium on Organ Procurement and Preservation and 2nd International Congress on Pancreatic and Islet Transplantation, Minneapolis (USA) September 17–22, 1989.

2) Van der Burg MPM, Gooszen HG, Ploeg RJ, Guicherit OR, Scherft JP, Terpstra JL, Bruijn JA, Frölich M. Pancreatic islet isolation with UW solution: a new concept. 4th Congress of the European Society for Organ Transplantation, Barcelona (Spain) November 1–4, 1989.

3) Van der Burg MPM, Gooszen HG, Ploeg RJ, Guicherit OR, Scherft JP, Terpstra JL, Bruijn JA, Frölich M. Pancreatic islet isolation with UW solution: a new concept. Transplant Proc 1990; 22: 2050–2051.

Updates

20240804 – This remastered 20240804 edition of the Minneapolis 1989 poster , now shows the original photo of the islet prep as posted at the meeting in 1989. In addition the correct line spacing is now restored.
The previous poster published online two years ago (20220822) showed a different photo print (higher magnification, and without the bar indicator) of the same islet prep, not the correct image.

20241211 – Minor text updates

Citation info : Minneapolis 1989 Poster UW Solution Islet Isolation | 20220822 | Michel van der Burg | michelvanderburg•com | TakeNode 91d70715-3fb3-4380-906a-0daf1b5ddd6a