Abstract
The combustion of diesel in engines contributes polycyclic aromatic hydrocarbons to Diesel Particulate Matter (DPM) present in the atmosphere, therefore causing toxic mitigating consequences by eliciting oxidative modulation. Currently, type 2 diabetes mellitus is reported as a global menace, causing about 1.5 million deaths in 2019 and contributing to about 48% of related deaths among the populace aged below 70 years. (GBDCN, 2020). Silibinin (SIL) is a flavolignan from milk thistle with substantive therapeutic potential. This work elucidates the effects of SIL on glucose modulatory pathways (PI3K-AKT-GLUT 2 and AMPK-GLUT 2), inflammation and redox imbalance in the pancreas of diabetic rats subjected to DEP. Streptozocin was used to induce Type-2 diabetes mellitus in rats, which were further endangered to DEP (0.4 and 0.5 mg/kg) later, post-treated with SIL 40 mg/kg. For comparison, a parallel group of non-diabetic rats were exposed to DEP and afterwards treated with SIL, whilst the results were compared to the diabetic group. Results state that SIL leads to marked/substantial modulation in insulin-associated genes (PI3K, AKT, AMPK, GLUT 2), inflammatory markers (IL-1β, IL-10), peroxidation (MDA, CD) and antioxidative status (SOD, CAT, GPX, GSH, HO-1) in vivo as negatively induced by DEP and hyperglycaemia, thereby restoring glucose homeostasis. Taken together, SIL proffers the potential to ameliorate pancreatic-toxicity caused by DEP and high blood glucose/elevated glucose levels.
Published Version
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