“The biological effects of endocannabinoid system are mediated by two types of receptors, cannabinoid 1 (CB1) and cannabinoid 2 receptor (CB2). They play a pivotal role in the management of pain, inflammation, cancer, obesity and diabetes mellitus.
CB2 receptor activity downregulation is hallmark of inflammation and oxidative stress. Strong evidence display the relation between activation of CB2 receptors with decrease in the pro-inflammatory cytokines and pro-apoptotic factors. Numerous in vitro and in vivo studies have been validated to confirm the role of CB2 receptor in the management of obesity, hyperlipidemia and diabetes mellitus by regulating glucose and lipid metabolism.
Activation of CB2 receptor has led to reduction of inflammatory cytokines; tumor necrosis factor-alpha (TNF-α), Interleukin 6 (IL-6), Nuclear factor kappa beta (NF-κβ) and also amelioration of reactive oxygen species and reactive nitrogen species playing role in apoptosis. Many studies confirmed the role of CB2 receptors in the insulin secretion via facilitating calcium entry into the pancreatic β-cells. CB2 receptors also displayed improvement in the neuronal and renal functions by decreasing the oxidative stress and downregulating inflammatory cascade.
The present review addresses, potential role of CB2 receptor activation in management of diabetes and its complications. It also includes the role of CB2 receptors as an anti-oxidant, anti-apoptotic and anti-inflammatory for the treatment of DM and its complications. Also, an informative summary of CB2 receptor agonist drugs is provided with their potential role in the reduction of glucose levels, increment in the insulin levels, decrease in the hyperglycaemic oxidative stress and inflammation.”
https://www.ncbi.nlm.nih.gov/pubmed/31461639
https://www.sciencedirect.com/science/article/pii/S0014299919305801?via%3Dihub
“Obese individuals are more likely to show insulin resistance (IR). However, limited population studies on 
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“Healthy aging includes freedom from disease, ability to engage in physical activity, and maintenance of cognitive skills for which diet is a major lifestyle factor. Aging, diet, and health are at the forefront of well-being for the growing population of older adults with the caveat of reducing and controlling pain. Obesity and diabetes risk increase in frequency in adults, and exercise is encouraged to control weight, reduce risk of type II diabetes, and maintain muscle mass and mobility.
“In this review, we discuss the role of the endocannabinoid (eCB) system in regulating energy and metabolic homeostasis. Endocannabinoids, via activating the cannabinoid type-1 receptor (CB1R), are commonly known as mediators of the thrifty phenotype hypothesis due to their activity in the central nervous system, which in turn regulates food intake and underlies the development of metabolic syndrome. Indeed, these findings led to the clinical testing of globally acting CB1R blockers for obesity and various metabolic complications. However, their therapeutic potential was halted due to centrally mediated adverse effects. Recent observations that highlighted the key role of the peripheral eCB system in metabolic regulation led to the preclinical development of various novel compounds that block CB1R only in peripheral organs with very limited brain penetration and without causing behavioral side effects. These unique molecules, which effectively ameliorate obesity, type II diabetes, fatty liver, insulin resistance, and chronic kidney disease in several animal models, are likely to be further developed in the clinic and may revive the therapeutic potential of blocking CB1R once again.”