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.
Here the remastered 20240804 edition of that Minneapolis 1989 poster presentation.
The UWS data had been added ad hoc in the poster – that is , it wasn’t part of the accepted abstract. The first proceedings paper on our UWS work was also submitted at this meeting , and was published April ’90 (3).
A previous edition of the remastered poster was published here two years ago (2) but that edition had a different photo print (higher magnification, and without the bar indicator) of the purified islet preparation inserted, not the original image. This has been corrected now. In addition the original line spacing is now restored.
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) Minneapolis 1989 Poster UW Solution Islet Isolation | 20220822 | Michel van der Burg | michelvanderburg•com | URL https://michelvanderburg.com/2022/08/22
3). Van der Burg MPM, Gooszen HG, Ploeg RJ, Scherft JP, Field MJ, Guicherit OR, Terpstra JL, Van de Woude FJ, Frölich M, Bruijn JA. Comparison of islet isolation techniques in dogs: Over 90% purified islets using UW solution. Transplant Proc. 1990 Apr;22(2):795-6. PMID: 2158174. This paper appears to be not readily available online – a reprint copy is available here PMID_2158174 🔗
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 (7) . Note that Pentastarch is a component of UWS.
The Percoll-UWS poster was posted recently (8)
Here the remastered poster presentation on Pentastarch-UWS :
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.
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.
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 3 strips) were then glued on site along the perforation, creating the 36/24 inch poster.
Finally the photo print of the purified islets was pasted in the poster at the spot at the venue in Lyon. In Lyon a photo of a dithizone stained Pentastarch purified islet sample was shown. To save time the archive was not searched for that image, and another image of Pentastarch purified islets was inserted in this remastered edition, a reflection contrast micrograph of an ultrathin section of Pentastarch purified islets immuno-stained with gold on insulin in the islet cells.
Nowadays, it is a challenge opening such old Mac files … Luckily, I was able to open this MacDraw II poster file in LibreOffice Vanilla and now learned to use the app to further correct most conversion issues. Pixelmator Pro was used for additional ‘repair’ and insertion of the photo scan.
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.
7. Pentastarch is the synthetic colloid component of UWS (ViaSpan / Belzer solution), a purified fraction (250 kD) of hydroxyethyl starch. Pentastarch powder was used here to increase the Pentastarch concentration and density of the UWS.
8. Percoll UWS Pancreatic Islet Purification • 20240731 | Michel van der Burg | michelvanderburg•com
Citation info : PentaStarch UWS Pancreatic Islet Purification • 20240802 | Michel van der Burg | michelvanderburg•com | TakeNode d11f1cef-a343-4466-8814-3e52a0261cae
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.
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.
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
Pancreatic islet transplantation Thesis Repository Leiden University | 20221125 | Michel van der Burg | Miracles•Media
Pancreatic islet transplantation , the doctoral thesis by Michel van der Burg – digital publication ISBN 9789080216402 – is freely available (Open Access) now in the Scholarly Publications repository of Leiden University. Persistent URL of this record https://hdl.handle.net/1887/3486604
The dissertation ‘Pancreatic islet transplantation’ was published first as a paperback in 1994 ( ISBN paperback 9789080216419 ) — and obviously that is considered virtually inaccessible in this digital age. Though it is still available ‘new’ — collectors item 😉
Last October the digital edition ISBN eBook (pdf) 9789080216402 has been produced and first released by the author / publisher Michel van der Burg at Miracles•Media as a free download , available from October 25th, 2022.
Stellingen | Addendum e-Book ISBN_9789080216402 | 20221026 | Michel van der Burg | Miracles•Media
Free download available now of the Addendum e-book (pdf) ‘Propositions | Stellingen (dutch)’ belonging to the dissertation ‘Pancreatic islet transplantation’ by Michel P.M. van der Burg (addendum eBook ISBN 9789080216402) .
Note : The Dutch dissertation system has a tradition of accompanying the generally very specialised PhD thesis with ten or more propositions (other ‘theses’), that should be ‘defensible’, and while at least some should be related to the dissertation, others generally reflect the PhD candidate’s broader interests, and the last one is often playful.
Pancreatic islet transplantation | eBook ISBN 9789080216402 | 20221025 | Michel van der Burg | Miracles•Media
Pancreatic islet transplantation : studies on the technique and efficacy of islet isolation and transplantation. PhD Thesis (English) by Michel P.M. van der Burg.
The doctoral thesis ‘Pancreatic islet transplantation’ was published first as a paperback in 1994 — and obviously that is considered virtually inaccessible in this digital age. Now this e-Book edition has been produced and released by the author / publisher Michel van der Burg | Miracles•Media as a free download , available from October 25th, 2022.
Support – For people who would like to also support my work – you can … ‘Buy me a coffee’ there too 😉
eBook details
Title : Pancreatic islet transplantation : Studies on the technique and efficacy of islet isolation and transplantation
Author : Michel P.M. van der Burg
Publisher : M.P.M. van der Burg | Miracles.Media
Genre : Medicine Technology & Science & Nature
Released : October 25, 2022
Language : EN English & Dutch summary
Length : 192 pages / 68 MB
Format : PDF (full access, no DRM, searchable PDF – designed for long term accessibility and archive PDF/A-1b – PDF/UA)
Version : Reprinted 1st edition (2nd impression) as eBook (pdf ISBN 9789080216402) by author / publisher M.P.M. van der Burg from scanned paperback published in 1994 by M.P.M. van der Burg (ISBN paperback 9789080216419).
Requirements : You can view this book on any device, best with a tablet or larger screen.
Addendum : Propositions | Stellingen (dutch) – published – release here will follow later.
Review / Award : Glaxo Wellcome Gastrointestinal Research Award – 2nd Prize – awarded October 5, 1995 to Michel P.M. van der Burg for the dissertation “Pancreatic islet transplantation” (received at the Fall meeting of the Dutch Gastroenterology Society, Veldhoven, The Netherlands)
File name : 9789080216402_ISBN.pdf
TakeNode ID : b9a348fd-9f3e-4f02-af51-e1ab25d61522
Publisher’s description
Pancreatic islet transplantation by a new method is introduced here : the isolation of islets in an organ preservation solution, the University of Wisconsin solution. A new concept allowing for the first time large-scale isolation and transplantation of consistently near 100% pure islets of Langerhans in a preclinical dog model with fasting normoglycemia up to 3 years posttransplant. Detailed metabolic studies demonstrated normal insulin levels after meals with preservation of gut hormone action stimulating insulin secretion at the mild hyperglycemia after meals. The introduction of the University of Wisconsin solution organ preservation solution for islet isolation at the start of these studies in 1989 is a new concept … and has been shown by now in 2022 , world-wide , to make the future of islet isolation and transplantation methods for insulin-dependent diabetes mellitus (IDDM).
Cover | Pancreatic islet transplantation | ISBN 9789080216402 | 20221024 | Michel van der Burg | Miracles•Media | PUBLISHED ! Here the full cover with a French flap back-cover of the e-Book (pdf) edition of my doctoral thesis ‘Pancreatic islet transplantation’ – ISBN 9789080216402 – published and registered today, Oct 24th, 2022 . In short : Pancreatic islet isolation in the University of Wisconsin solution is a new concept introduced here … allowing transplantation of pure islets as an effective treatment in insulin-dependent diabetes. Distribution of the e-Book and full information follows this week.
