This photo of a monkey I saw on a hike in Shenzhen is the photo that made me decide to do a monkey week. I think it’s pretty good. Unfortunately when I went to find some other monkey photos none of them were great. I’ve definitely got to work on my wildlife photography
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#travel #monkey #macaque #china #shenzhen #hiking #lumix #motionpictureperfect #naturephotography #wildlifephotography #trekking

Primate Islet Isolation and Purification in Iodixanol-UWS • @1MEMO_20260425
by Michel van der Burg, April 25th, 2026

In early 1999, ahead of the official launch of the clinical islet transplantation program at Leiden University Medical Center (LUMC), the author conducted a pilot study to assess whether a novel islet purification method could be applied to non-human primates.

The method combined Iodixanol (Optiprep/Visipaque) with University of Wisconsin Solution (UWS) — a preservation fluid used for donor organ storage. This Iodixanol-UWS approach had proven effective for purifying pig islets since 1996, and had been trialed on human donor islets during a 1998 visit to the Diabetes Research Institute (DRI) in Miami.

Islets were isolated from four non-human primates — one cynomolgus and three rhesus macaques — whose pancreases were procured during euthanasia of animals used in unrelated studies at the Biomedical Primate Research Centre in Holland.

Islets were purified by centrifugation in the Iodixanol-UWS gradient.

Results were excellent: an average yield of 3,697 islets / gram pancreas before purification, with 94% purity and 90% recovery after purification. Viability assessments , and a 98% culture survival confirmed high islet quality.

Colleague Krista Haanstra conducted immunogenicity analyses using a Mixed Lymphocyte Islet Culture (MLIC) assay.

Biosafety protocols for non-human primate tissue proved valuable preparation for the subsequent launch of human islet isolations at LUMC later that month.

Read the full report at michelvanderburg.com/2026/04/25/

#islets #Langerhans #isolation #purification #LUMC #Leiden #primate #macaque #optiprep #iodixanol #UWS #pancreas #transplantation #diabetes #history #research #1memo #michelvanderburg

Citation: Primate Islet Isolation and Purification in Iodixanol-UWS • @1MEMO_20260425 • Michel van der Burg • Miracles.Media • michelvanderburg.com/2026/04/25/

One day in Langkawi we went on a hike to see some waterfalls. During the hike we were near a stream and there were some monkeys that were in the water. I’ve seen monkeys swim in videos but I’d never seen them in the water in person
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#travel #vacation #monkey #macaque #malaysia #langkawi #island #omsystem #naturephotography #wildlifephotography

This photo of a monkey I saw on a hike in Shenzhen is the photo that made me decide to do a monkey week. I think it’s pretty good. Unfortunately when I went to find some other monkey photos none of them were great. I’ve definitely got to work on my wildlife photography
•
#travel #monkey #macaque #china #shenzhen #hiking #lumix #motionpictureperfect #naturephotography #wildlifephotography #trekking

One day in Langkawi we went on a hike to see some waterfalls. During the hike we were near a stream and there were some monkeys that were in the water. I’ve seen monkeys swim in videos but I’d never seen them in the water in person
•
#travel #vacation #monkey #macaque #malaysia #langkawi #island #omsystem #naturephotography #wildlifephotography

While picking photos a couple of weeks ago I saw a photo of a monkey that I took and decided to do a monkey week. Today’s monkey was part of a troop that hung out outside of Bat Cave on Langkawi. We were warned not to have too much with us so we wouldn’t get robbed while passing by them to get to the cave
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#travel #vacation #monkey #macaque #malaysia #langkawi #island #shotoniphone #naturephotography #wildlifephotography