Abstract: |
Exposure to acrylic amide (AD) has garnered worldwide attention due to its potential adverse health effects,
prompting calls from the World Health Organization for intensified research into associated risks. Despite this,
the relationship between oral acrylic amide (acrylamide) (AD) exposure and pulmonary dysfunction remains
poorly understood. Our study aimed to investigate the correlation between internal oral exposure to AD and the
decline in lung function, while exploring potential mediating factors such as tissue inflammation, oxidative
stress, pyroptosis, and apoptosis. Additionally, we aimed to evaluate the potential protective effect of zinc oxide
nanoparticles green-synthesized moringa extract (ZNO-MONPs) (10 mg/kg b.wt) against ACR toxicity and
conducted comprehensive miRNA expression profiling to uncover novel targets and mechanisms of AD toxicity
(miRNA 223–3 P and miRNA 325–3 P). Furthermore, we employed computational techniques to predict the
interactions between acrylic amide and/or MO-extract components and tissue proteins. Using a rat model, we
exposed animals to oral acrylamide (20 mg/kg b.wt for 2 months). Our findings revealed that AD significantly
downregulated the expression of miRNA 223–3 P and miRNA 325–3 P, targeting NLRP-3 & GSDMD, respectively,
indicating the induction of pyroptosis in pulmonary tissue via an inflammasome activating pathway. Moreover,
AD exposure resulted in lipid peroxidative damage and reduced levels of GPX, CAT, GSH, and GSSG. Notably, AD
exposure upregulated apoptotic, pyroptotic, and inflammatory genes, accompanied by histopathological damage
in lung tissue. Immunohistochemical and immunofluorescence techniques detected elevated levels of indicative
harmful proteins including vimentin and 4HNE. Conversely, concurrent administration of ZNO-MONPs with AD
significantly elevated the expression of miRNA 223–3 P and miRNA 325–3 P, protecting against oxidative stress,
|
|
|