Evaluating the ameliorative effect of nano bis-demethoxy curcumin analog against extrapulmonary toxicity in rat induced by inhaled multi-walled carbon nanotube

• Published in: Environmental science and pollution research international 2023-09, Vol.31 (34), p.46641-46651
• Main Authors: Francis, Arul Prakash, Meenakshi, Dhanalekshmi Unnikrishnan, Ganapathy, Selvam, Devasena, Thiyagarajan
• Format: Article
• Language: English
• Subjects: Animals; Aquatic Pollution; Atmospheric Protection/Air Quality Control/Air Pollution; Body weight; Carbon; Curcumin; Curcumin - analogs & derivatives; Curcumin - pharmacology; Earth and Environmental Science; Ecotoxicology; Effectiveness; Environment; Environmental Chemistry; Environmental Health; Exposure; Histopathology; Inhalation; Inhalation Exposure; Intravenous administration; Lung - drug effects; Male; Multi wall carbon nanotubes; Nanotechnology; Nanotubes; Nanotubes, Carbon - toxicity; Organs; Oxidative stress; Oxidative Stress - drug effects; Rats; Respiration; Side effects; Smart Nanomaterials for Healthcare and Environmental Applications: Perspectives in Nanotoxicology; Toxicity; Waste Water Technology; Water Management; Water Pollution Control
• ISSN: 1614-7499; 0944-1344; 1614-7499
• DOI: 10.1007/s11356-023-29749-2

Carbon nanotubes (CNTs) exposure in human beings through inhalation may affect pulmonary organs and extrapulmonary organs including liver, kidney, brain, spleen, etc. The toxic effects developed as the result of CNTs exposure made us to explore the beneficial effect of nano bis-demethoxy curcumin analog (NBDMCA) towards multi-walled carbon nanotubes (MWCNTs)-induced toxicity in extrapulmonary organs. The current study described the ameliorative effect of NBDMCA against the toxic effects developed by inhaled MWCNTs in the extrapulmonary organs. The rats are exposed to the fixed aerosol concentration of 5 mg/m 3 maintained in inhalation exposure chambers MWCNTs for 15 days as per OECD guidelines. After the exposure with MWCNTs, the animals were treated with NBDMCA (5 mg/kg body weight) with different dose frequencies, i.e., 2 doses per week for 1, 2, and 4 weeks. After treatment duration, the blood was drawn from retro-orbital vein and subjected to biochemical and cytokine analysis. Further the animals were euthanized, and the sample tissues were collected and performed oxidative stress and histopathology. The study results revealed that the intravenous administration of NBDMCA suppresses the extrapulmonary toxicity induced by MWCNTs, i.e., annulling the clinical changes and oxidative stress in various extrapulmonary organs at low doses of NBDMCA, evidenced its antioxidant efficacy. Moreover, use of increased doses provides better reduction in toxic symptoms with negligible side effects confirming the dose-dependent efficacy of NBDMCA. Overall, we suggested that NBDMCA may materialize into an effective compound for the reduction of MWCNTs-induced toxicity.