L-α-Phosphatidylcholine attenuates mercury-induced hepato-renal damage through suppressing oxidative stress and inflammation

• Published in: Environmental science and pollution research international Vol. 26; no. 9; pp. 9333 - 9342
• Main Authors: Elblehi, Samar S., Hafez, Mona H., El-Sayed, Yasser S.
• Format: Journal Article
• Language: English
• Published: Berlin/Heidelberg Springer Berlin Heidelberg 01.03.2019; Springer Nature B.V
• Subjects: Alternations; Antioxidants; Aquatic Pollution; Atmospheric Protection/Air Quality Control/Air Pollution; Attenuation; Creatinine; Cytokines; Damage accumulation; Depletion; Earth and Environmental Science; Ecotoxicology; Environment; Environmental Chemistry; Environmental Health; Environmental science; Enzyme-linked immunosorbent assay; Glutathione; Hematology; Inflammation; Interleukin 6; Interleukins; Kidneys; Lecithin; Liver; Malondialdehyde; Mercuric chloride; Mercury; Mercury (metal); Mercury compounds; Oxidative stress; Phosphatidylcholine; Research Article; Tumor necrosis factor-TNF; Tumor necrosis factor-α; Tumors; Urea; Waste Water Technology; Water Management; Water Pollution Control; Antioxidants; Phosphatidylcholine; Histopathology; Proinflammatory cytokines; Mercury
• ISSN: 0944-1344; 1614-7499
• DOI: 10.1007/s11356-019-04395-9

The potential ameliorative effects of L-α-phosphatidylcholine (PC) against mercuric chloride (HgCl 2 )-induced hematological and hepato-renal damage were investigated. Rats were randomly allocated into four groups ( n  = 12): control, PC (100 mg/kg bwt, intragastrically every other day for 30 consecutive days), HgCl 2 (5 mg/kg bwt, intragastrically daily), and PC plus HgCl 2 . Hematological and hepato-renal dysfunctions were evaluated biochemically and histopathologically. Hepatic and renal oxidative/antioxidative indices were evaluated. The expression of proinflammatory cytokines (tumor necrosis factor-α and interleukin-6) was also detected by ELISA. HgCl 2 significantly increased serum aminotransferases (ALT, AST), urea, and creatinine levels that are indicative of hepato-renal damage. HgCl 2 also induced a significant accumulation of malondialdehyde (+ 195%) with depletion of glutathione (− 43%) levels in the liver and renal tissues. The apparent hepato-renal oxidative damage was associated with obvious organ dysfunction that was confirmed by impairments in the liver and kidney histoarchitecture. Furthermore, HgCl 2 significantly attenuated the expression of proinflammatory cytokines named tumor necrosis factor-α (TNF-α) and interleukin-6 (IL-6). Conversely, PC treatment attenuated these effects, which improved the hematological and serum biochemical alternations, reduced the oxidative stress and proinflammatory cytokine levels, and ameliorated the intensity of the histopathological alterations in livers and kidneys of HgCl 2 -treated rats. It could be concluded that PC displayed potential anti-inflammatory and antioxidant activities against HgCl 2 -induced hepato-renal damage via suppression of proinflammatory cytokines and declining oxidative stress.