Postnatal Development of Numbers and Mean Sizes of Pancreatic Islets and Beta-Cells in Healthy Mice and GIPRdn Transgenic Diabetic Mice
2011

Postnatal Development of Pancreatic Islets and Beta-Cells in Mice

publication Evidence: high

Author Information

Author(s): Herbach Nadja, Bergmayr Martina, Göke Burkhard, Wolf Eckhard, Wanke Ruediger

Primary Institution: Institute of Veterinary Pathology, Center for Clinical Veterinary Medicine, LMU Munich, Germany

Hypothesis

The study aims to examine postnatal islet and beta-cell expansion in healthy and diabetic mice.

Conclusion

Healthy control mice showed significant increases in islet and beta-cell volumes until 90 days of age, while diabetic GIPRdn transgenic mice exhibited reduced islet and beta-cell volumes.

Supporting Evidence

  • Total islet and beta-cell volumes tripled in healthy control mice between 10 and 90 days of age.
  • GIPRdn transgenic mice showed significantly lower total islet and beta-cell volumes than controls.
  • Islet-cell replication was undetectable in 180-day-old control females.

Takeaway

This study looked at how the pancreas grows in mice after birth, finding that healthy mice grow more insulin-producing cells than diabetic mice.

Methodology

The study used quantitative-stereological methods to analyze pancreatic islets and beta-cells in mice at various ages.

Limitations

The study primarily focused on female mice, which may limit the generalizability of the findings.

Participant Demographics

The study involved female control and GIPRdn transgenic mice.

Statistical Information

P-Value

p<0.05

Statistical Significance

p<0.05

Digital Object Identifier (DOI)

10.1371/journal.pone.0022814

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