Blurb | Pancreatic islet transplantation | 20221023

Blurb | Pancreatic islet transplantation | 20221023 | Michel van der Burg | Miracles•Media | French flap interior of paperback back cover with illustration of islet isolation and transplantation in the doctoral thesis Pancreatic islet transplantation – ISBN 9789080216402. Studies aiming at transplantation of the pancreatic Islets of Langerhans to prevent, postpone or ameliorate the long-term crippling complications of insulin-dependent diabetes mellitus (IDDM). Paperback published in 1994 ISBN 9789080216419 | 9080216410 , later this month published as eBook (pdf) ISBN 9789080216402.

Illustration of Islet Isolation and Transplantation
(Captions at last page of the dissertation)

1. Paul Langerhans
2. Section of the normal dog pancreas showing islets stained reddish-brown (immunostained for insulin)
3. The author, watching the dog islet isolation procedure in the Minneapolis surgical research laboratory
4. Start of the operation in the dog (From left to right: Professor Hein G. Gooszen, Ms. M. Jane Field (Minneapolis), and Dr. Onno R. Guicherit, at our surgical laboratory)
5. The pancreas is removed
6. Infusion of the collagenase solution via the ducts in the dog pancreas – collagenase leaking from the pancreas is recirculated using a pump (Islet laboratory, at the Department of Cell Biology and Histology, Leiden)
7. During collagenase digestion at 37-39°C the pancreas falls apart (non-stained pancreatic exocrine tissue and free-ed small blood vessel, at low magnification)
8. Dissociated pancreatic tissue
9. Tissue is further dispersed by aspiration in a syringe, and sieved to remove undigested fragments, ducts and vessels ~ demonstrated by Ms. Jane Field at our islet laboratory.
10. Tissue suspension demonstrating low purity of the islets (stained red by dithizone) obtained by dextran gradient separation after isolation in the RPMI tissue culture solution (dark-brown exocrine fragments remain unstained)
11. Pure islet suspension (after dithizone staining) obtained by density separation in Percoll gradients (in University of Wisconsin solution) after islet isolation in the University of Wisconsin solution (islets are only slightly stained due to poor diffusion over the cell membrane in the preservation solution)
12. Section of highly purified islets obtained by dextran density separation after isolation in the University of Wisconsin solution
13. Islets are autotransplanted by infusion in the spleen of the dog
14. Transplanted islet in section of the spleen of one of the dogs shortly after the onset of fasting hyperglycemia at three months posttransplant (immunostained for insulin)
15. Highly purified human islets obtained by Percoll density separation after isolation in the University of Wisconsin solution (immunostained with gold for insulin; not counterstained)

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TAGS #blurb #FrenchFlap #flap #cover #publish #science #donor #pancreas #insulin #therapy #clinical #isletsofLangerhans #isolation #UniversityofWisconsin #solution #UWS #density #gradient #separation #transplantation #medicine #biology #diabetes #IDDM #laboratory #research #cure #LeidenUniversity #LUMC #dissertation #PhD #DoctorofPhilosophy #publisher #scan #ebook #book #ISBN9789080216402 #ISBN9789080216419 #Holland #Netherlands #TakeNode #MiraclesMedia #1Memo #michelvanderburg

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.

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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

Human Islet Purification Miami 1998 • @1MEMO 20181102

Efficacy of the novel iodixanol-UWS density gradient for human islet purification

Slideshow (video) of my January 1999 oral presentation in Igls (Innsbruck), Austria, at the 18th Workshop of the AIDSPIT (Artificial Insulin Delivery Systems, Pancreas and Islet Transplantation) Study Group. (Now known as AIDPIT).

These results of this innovative islet purification method developed in our Leiden islet laboratory (LUMC) were the outcome of work I had done spring 1998 with the islet group of Camillo Ricordi in the “fast track” center for diabetes research at the Diabetes Research Institute in Miami , Florida, USA.

Notes

The slideshow (pdf) was first uploaded Nov. 11, 2010 at at Scribd , and Archive.org • URL http://archive.org/details/EfficacyOfTheNovelIodixanol-uwsDensityGradientForHumanIslet

Original video title (file name) : 20181102 ~ Human Islet Purification Miami 1998

Updates:


20241202 – Text updated with extra info. Youtube video in post replaced by Vimeo edition. Copied 1-memo post to michelvanderburg.com .

20251101 – Vimeo video replaced with Youtube copy . Added @1MEMO in post title and citation info

Citation info : Human Islet Purification Miami 1998 • Michel van der Burg • Miracles.Media • @1MEMO 20181102 • URL michelvanderburg.com/2018/11/02/ • TakeNode 3f2ec4d2-afe0-4580-b055-92a2f231a4fa

Out Of Service | 20140911

Out Of Service | 20140911 | 1-memo•com | In the morning of 9/11 2001 logistics forced me to officially announce a temporarily – 1 week – ‘out of service’ of our Leiden islet isolation and transplant center. Our center was started earlier that summer of 2001 at the Leiden University Medical Center. So, I decided to have a short vacation abroad – heaven, after being on call 24/7 almost non stop for years. Later that day at home, I was downstairs watching TV — because upstairs near my workroom the central heating was being replaced – when I saw the CNN breaking news about the plane crashing into the World Trade Center. That day would become a landmark in history and the course of my life.

Background image : Microscopy picture I took of purified human Islets of Langerhans – tiny clumps (size around 1/10 mm or 1/25 inch) of 10s to 1000s of cells that produce hormones like insulin – these cells are just visible when you enlarge this 50x microscopy picture : as tiny translucent ‘balls’ or ‘spheres’. The red color is from a stain that binds to the insulin cells.
Iodixanol-UWS purified human islets, stained with dithizone. Original magnification 50x.

Title: mvdb20041118_114555m0400.tif
Creator: Michael P.M. van der Burg
Caption/Description: Iodixanol-UWS purified human islets, stained with dithizone. Original magnification 50x. Copyright Notice: Copyright © 2004 M.P.M. van der Burg. All rights reserved. Digital Creation Date: 18 Nov 2004

References

Image published in : Transplantatie van eilandjes van Langerhans bij patiënten met diabetes mellitus type 1. Ned Tijdschr Geneeskd 2005 1 januari;149(1) – URL https://www.ntvg.nl/system/files/publications/2005100120001a.pdf

Efficacy of the novel iodixanol-UWS density gradient for human islet purification (Presentation publ. Archive Org – michelvanderburg, 19990125 )
https://archive.org/details/EfficacyOfTheNovelIodixanol-uwsDensityGradientForHumanIslet

25 Years of the Ricordi Automated Method for Islet Isolation. Piemonti L, Pileggi A. in CellR4 2013; 1(1): e128. – URL https://www.cellr4.org/article/128

Credit : Out Of Service | 20140911 | 1-memo•com | TakeNode ID e22f209c-14da-40d8-b11a-74a29b1e80b4

TAGS #michelvanderburg #1Memo #oncall #LeidenUniversity #OutOfService #Islet #Langerhans #isolation #purification #transplantation #clinic #human #center #diabetes #CNN #WorldTradeCenter #breakingnews #crash #CV #LUMC #microscopy #dithizone #stain #cell #insulin #therapy #Iodixanol #UWS #UniversityofWisconsin #solution