Christian Lehmann1,2,3,4, Nicholas B Fisher5, Barna Tugwell6, Anna Szczesniak2, Mel Kelly2, Juan Zhou1,3. 1. Department of Anesthesia, Pain Management and Perioperative Medicine, Dalhousie University, Halifax, NS, Canada. 2. Department of Pharmacology, Dalhousie University, Halifax, NS, Canada. 3. Department of Microbiology and Immunology, Dalhousie University, Halifax, NS, Canada. 4. Department of Physiology and Biophysics, Dalhousie University, Halifax, NS, Canada. 5. Department of Biology, Dalhousie University, Halifax, NS, Canada. 6. Department of Medicine, Dalhousie University, Halifax, NS, Canada.
Abstract
BACKGROUND: Destruction of the insulin-producing beta cells in type 1 diabetes (T1D) is induced by invasion of immune cells causing pancreatic inflammation. Cannabidiol (CBD), a phytocannabinoid, derived from the plant, Cannabis sativa, was shown to lower the incidence of diabetes in non-obese diabetic (NOD) mice, an animal model of spontaneous T1D development. OBJECTIVE: The goal of this study was to investigate the impact of experimental CBD treatment on early pancreatic inflammation in T1D by intravital microscopy (IVM) in NOD mice. METHODS: Seven-week-old female NOD mice were prophylactically administered daily 5 mg/kg CBD or control vehicle i.p. five times weekly for ten weeks. Animals underwent IVM following confirmation of T1D diagnosis by blood glucose testing. Leukocyte activation and functional capillary density (FCD) were quantified via IVM. RESULTS: CBD-treated NOD mice developed T1D later and showed significantly reduced leukocyte activation and increased FCD in the pancreatic microcirculation. CONCLUSIONS: Experimental CBD treatment reduced markers of inflammation in the microcirculation of the pancreas studied by intravital microscopy.
BACKGROUND: Destruction of the insulin-producing beta cells in type 1 diabetes (T1D) is induced by invasion of immune cells causing pancreatic inflammation. Cannabidiol (CBD), a phytocannabinoid, derived from the plant, Cannabis sativa, was shown to lower the incidence of diabetes in non-obese diabetic (NOD) mice, an animal model of spontaneous T1D development. OBJECTIVE: The goal of this study was to investigate the impact of experimental CBD treatment on early pancreatic inflammation in T1D by intravital microscopy (IVM) in NOD mice. METHODS: Seven-week-old female NOD mice were prophylactically administered daily 5 mg/kg CBD or control vehicle i.p. five times weekly for ten weeks. Animals underwent IVM following confirmation of T1D diagnosis by blood glucose testing. Leukocyte activation and functional capillary density (FCD) were quantified via IVM. RESULTS:CBD-treated NOD mice developed T1D later and showed significantly reduced leukocyte activation and increased FCD in the pancreatic microcirculation. CONCLUSIONS: Experimental CBD treatment reduced markers of inflammation in the microcirculation of the pancreas studied by intravital microscopy.
Authors: Giulia Donvito; Sara R Nass; Jenny L Wilkerson; Zachary A Curry; Lesley D Schurman; Steven G Kinsey; Aron H Lichtman Journal: Neuropsychopharmacology Date: 2017-08-31 Impact factor: 7.853
Authors: Luis F Lara; Laura Nemer; Alice Hinton; Gokulakrishnan Balasubramanian; Darwin L Conwell; Somashekar Krishna Journal: Pancreas Date: 2021 May-Jun 01 Impact factor: 3.327