Islet Transplants Performance 5th ESOT 1991 • @1MEMO 20250109

Islet Transplant Performance 5th ESOT 1991 • Michel van der Burg • Miracles.Media • @1MEMO 20250109_1 • TakeNode 75edbb4e-4360-43b8-8783-363ffd34c0ef

Poster (1) presented at the 5th Congress European Society for Organ Transplantation, Maastricht (The Netherlands) October 7–10, 1991. The poster was originally created on a Macintosh computer Oct 6, 1991, using the MacDraw II application, with graphs from Cricket Graph. That 1991 poster was remastered today in LibreOffice.

We presented 2 posters at the 5th ESOT, this poster (1), and another one on the effects of denervation with pancreas transplantation (2).

Two years after the 4th ESOT (in Barcelona, Nov 1989) where we introduced the UW-Solution as an islet isolation solution before density gradient purification, we now had a talk at this 5th ESOT on the use of the UW-Solution as the islet isolation solution, both before purification, and also during the purification in an innovative density gradient (3) — the foundation for current clinical purification methods. The talk was recorded on tape (except for the intro), and will be posted here soon too.

Notes

1) Van der Burg MPM, Guicherit OR, Ebert R, Jansen JBMJ, Creutzfeld W, Lamers CBHW, Frölich M, Gooszen HG. Postprandial performance after canine islet transplantation: the importance of gut factors. 5th Congress European Society for Organ Transplantation, Maastricht (The Netherlands) October 7–10, 1991.

2) Guicherit OR, Van der Burg MPM, Lemkes HHPJ, Frölich M, Gooszen HG. Pancreatic
denervation causes reduced insulin sensitivity. 5 th Congress European Society for Organ Transplantation, Maastricht (The Netherlands) Oct 7–10 1991.

3) 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. 5th Congress European Society for Organ Transplantation, Maastricht (The Netherlands) October 7–10, 1991.

Citation info : Islet Transplant Performance 5th ESOT 1991 • Michel van der Burg • Miracles.Media • @1MEMO 20250109 • URL michelvanderburg.com/2025/01/09/

Snert • Dutch Split Pea Soup • @1MEMO 20241013


Dutch Split Pea Soup, called Erwtensoep or simply ‘Snert’ by the Dutch, a traditional and comforting meal to warm you up when it gets colder in Holland. Made with split peas, plenty of vegetables, and pork.

Music : A Sophisticated Place by John Van Houdt | Artlist

Citation info : Snert • Dutch Split Pea Soup • @1MEMO 20241013 • Michel van der Burg • Miracles•Media | TakeNode 479ea9d1-d3e6-42af-9ff9-49bef6647666

Greek Poster • @1MEMO 20241009

Greek Poster • Michel van der Burg • Miracles•Media • 20241009

Funny. LibreOffice Vanilla Issue.

Greek characters appeared in this poster originally designed with english text and produced on a Macintosh computer and Imagewriter dotmatrix printer, September 3, 1990, using the MacDraw II application, with graphs from Cricket Graph.
That 1990 Mac file was remastered today in LibreOffice Vanilla (other minor issues in graphs not corrected). Generally LibreOffice does a great job with these ancient files. I recently posted several of such posters at site michelvanderburg.com.
However, some of the posters retrieved from my archive show up with Greek characters when opened in LibreOffice, like this poster produced in English (with roman characters).
Those problematic posters have in common that the Apple Chicago font was used – the interface font in Apple’s early versions of Mac OS from 1984 to 1997. Clearly LibreOffice cannot handle this Chicago font correctly. I have not found a solution for this.
Text in other posters, produced with Helvetica, had only minor issues in LibreOffice, Helvetica italics text appeared as regular Times.

The original poster and abstract (below) were presented at the 8th International Symposium on Gastrointestinal Hormones, in Timmendorfer Strand Baltic Sea (FRG) September 4–8, 1990.

Abstract

Contribution of gut factors to canine isolated islet function
M.P.M. van der Burg, O.R. Guicherit, J.B.M.J. Jansen, C.B.H.W. Lamers, J.P. Scherft, M. Frölich, H.G. Gooszen.
Departments of Surgery, Gastroenterology. Endocrinology and Cel Biology. University Hospital, Leiden, The Netherlands.

Techniques for isolating islets of Langerhans from the large mammalian pancreas have improved to the point where islet transplantation as a therapeutical approach to human diabetes has become more realistic. The quality of metabolic control is however largely unknown. We studied canine isolated-islet function both in vivo after autotransplantation, as well as in vitro by perifusion.
Five normal dogs underwent total pancreatectomy. Islets were isolated from the excised pancreas by collagenase digestion, dispersion and purification with filtration and density gradients. Isolated islets were autotransplanted into the spleen of the dog by retrograde venous infusion. Graft function was assessed up to 3 mo by determining the glucose and insulin response to an intravenous glucose injection (IVGTT), i.v. arginine injection during 35 mM glucose clamp (AT), and a meal. In addition (n = 4) the in vitro insulin response of overnight cultured canine islets was studied by perifusion with cholecystokinin (CCK-33) and glucose-dependent insulinotropic polypeptide (GIP).
The islet dose at transplantation ranged from 3500 – 13000 islets/kg b.w. One animal became overtly hyperglycemic (fasting glucose 18 mM) within 7 days after receiving 3500 islets/kg b.w. The other grafts (> 6000 islets/kg b.w.) were successful (fasting glucose <7mM) but demonstrated, compared to pre-operative values, a 50% reduced glucose clearance and insulin response at IVGTT, and a 90% reduced insulin secreting capacity at AT. Postprandially hyperglycemia (~ 10 mM) and in contrast to i.v. glucose and arginine, a normal insulin response was observed. The in vitro insulin response at 7.5 mM glucose to equimolar (0.1-1- 10 nM) concentrations of either CCK, GIP or both, demonstrated a sustained dose-response to GIP (up to 5x basal values) and a significant albeit small and transient effect of CCK as of 1 nM. No synergistic effect was observed.
In dogs ‘one-to-one’ transplantation was successful in 4/5 recipients of isolated islets. The difference in the effect of islet transplantation on the insulin response to intravenous glucose or – arginine and a meal, may be related to the postprandial, hyperglycemia enhanced, activation of the entero-insular axis, especially GIP.

Van der Burg MPM, Guicherit OR, Jansen JBMJ, Lamers CBHW, Scherft JP, Frölich M, Gooszen HG. Contribution of gut factors to canine isolated islet function (Abstract). Digestion 1990; 46 (Suppl 1): 14–15. https://doi.org/10.1159/000200356

PDF abstract shown below – file 20241009_1_Digestion.pdf

Citation info : Greek Poster • Michel van der Burg • Miracles•Media • 20241009 • URL michelvanderburg.com/2024/10/09 | TakeNode 10afaddd-08b7-4dcd-ad7a-43228420ad59

Gut factors controlling pancreatic islets • 20240910

Function after intrasplenic transplantation of islets of Langerhans in dogs.

The effect of gut hormones GLP-1 , GIP , and CCK-33 together with glucose on the insulin secretion capacity of isolated islets tested during storage of the islets in the laboratory (in vitro by perifusion), and after transplantation (in vivo).

Dutch poster (1) presented at the Surgeon Days ’92 of the Dutch Surgery Society, Rotterdam (The Netherlands) May 21–22, 1992.

An English edition of this presentation was presented in 1991, without the GLP-1 data (2) and posted again Sep 6, 2024 (3).

The poster was originally designed and produced on a Macintosh computer and Imagewriter dotmatrix printer, May 1992, using the MacDraw II application, with graphs from Cricket Graph. That 1992 Mac file was remastered today in LibreOffice Vanilla.

Notes

1. Van der Burg MPM, Guicherit OR, Scherft JP, Frölich M, Terpstra JL, Gooszen HG. Functie na intralienale transplantatie van eilandjes van Langerhans in de hond ( Function after intrasplenic transplantation of islets of Langerhans in dogs ). Surgeon days ’92 of the Dutch Surgery Society, Rotterdam (The Netherlands) May 21–22, 1992.

2. 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.

3. Gut feelings of pancreatic islets • 20240906 | Michel van der Burg | michelvanderburg•com | URL https://michelvanderburg.com/2024/09/06/gut-feelings-of-pancreatic-islets-20240906/

4. Van der Burg MPM, Guicherit OR, Frölich M, Gooszen HG. Insulinotropic effects of cholecystokinin, gastric inhibitory polypeptide, and glucagon-like peptide-1 during perifusion of short-term cultured canine isolated islets. Regul Peptides 1995; 60: 61–67.

5. 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/

Citation info : Gut factors controlling pancreatic islets • 20240910 | Michel van der Burg | michelvanderburg•com | TakeNode 56ddc057-ffe9-4b70-bd33-180ea4b07877

Gut feelings of pancreatic islets • 20240906

The effect of gut hormones together with glucose on the insulin secretion capacity of isolated islets tested during storage of the islets in the laboratory, and after transplantation.

CCK and GIP control of canine isolated islet function.

Poster (1) presented at the 3rd International Congress on Pancreatic and Islet Transplantation, Symposium on Artificial Insulin Delivery System, Lyon (France) June 6–8, 1991.

The poster was originally designed and produced on a Macintosh computer and Imagewriter dotmatrix printer, June 3, 1991, using the MacDraw II application, with graphs from Cricket Graph. That 1991 Mac file was remastered today in LibreOffice Vanilla.

Notes

1. 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.

2. 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/

Citation info : Gut feelings of pancreatic islets • 20240906 | Michel van der Burg | michelvanderburg•com | TakeNode 5e52cddc-469d-4f91-bd23-e833566be41e