Ione peroxidase. Competing interests The authors declare that they have no competing interests. Acknowledgments Funding was received from the National Science Council, Taiwan. (NSC 942320-B-030-010). Author details 1 Graduate Institute of Nutrition and Food Sciences, Fu-Jen Catholic University, Hsinchuang, New Taipei City, Taiwan. 2School of Medicine, Fu-Jen Catholic University, 510 Chung-Cheng Road, Hsinchuang, New Taipei City 24205, Taiwan. 3Department of PNPP side effects Nutritional Science, Fu-Jen Catholic University, 510 Chung-Cheng Road, Hsinchuang, New Taipei City 24205, Taiwan. Authors’ contributions CYY designed the experimental protocol, performed the experiments and drafted the manuscript. GSWH contributed to the study concept, research design, data interpretation and manuscript revision. YJL contributed to the study concept, research design, data interpretation and manuscript revision. All authors read and approved the final version of the manuscript. Received: 11 March 2012 Accepted: 21 May 2012 Published: 21 May 2012 References 1. Love S, Jenner P: Oxidative stress in neurological disease. Brain Pathol 1999, 9:55?6. 2. Youdim MB: Iron in the brain: implications for Parkinson’s and Alzheimer’s diseases. Mt Sinai J Med 1988, 55(1):97?01. 3. Verstraeten SV, Nogueira LV, Schreier S, Oteiza PI: Effect of trivalent metal ions on phase separation and membrane lipid packing: role in lipid peroxidation. Arch Biochem Biophys 1997, 338(1):121?27. 4. Exley C: The pro-oxidant activity of aluminum. Free Radic Biol Med 2004, 36(3):380?87. 5. Chevion M, Berenshtein E, Stadtman ER: Human studies related to protein oxidation: protein carbonyl content PubMed ID:https://www.ncbi.nlm.nih.gov/pubmed/28499442 as a marker of damage. Free Radic Res 2000, 33:S99?08. 6. Kowalczyk E, Kopff A, Kdziora J, Blaszczyk J, Kopff M, Niedworok J, Fijalkowski P: Effect of long-term aluminium chloride intoxication on selected biochemical parameters and oxidative-antioxidative balance in experimental animals. Polish Journal of Environmental Studies 2004, 13(1):41?3. 7. Christen Y: Oxidative stress and Alzheimer disease. Am J Clin Nutr 2000, 71(2):621S?29S. 8. Julka D, Gill KD: Effect of aluminum on regional brain antioxidant defense status in Wistar rats. Res Exper Med 1996, 196:187?94. 9. AA Abd el-Fattah, al-Yousef HM, al-Bekairi AM, al-Sawaf HA: Vitamin E protects the brain against oxidative injury stimulated by excessive aluminum intake. Biochem Mol Biol Int 1998, 46(6):1175?180. 10. Katyal R, Desigan B, Sodhi CP, Ojha S: Oral aluminum administration and oxidative injury. Biol Trace Elem Res 1997, 57(2):125?30. 11. Toda S, Yase Y: Effect of aluminum on iron-induced lipid peroxidation and protein oxidative modification of mouse brain homogenate. Biol Trace Elem Res 1998, 61(2):207?17. 12. Yuan CY, Hsu GSW, Lee YJ: Aluminum alters NMDA receptor 1A and 2A/B expression on neonatal hippocampal neurons in rats. J Biomed Sci 2011, 18:81. 13. Snell RS: Clinical neuroanatomy for medical students (Periodicals). 5th edition. Philadelphia: Lippincott Williams Wilkins; 2001. 14. Blackburn ST, Loper DL: Maternal, Fetal, and Neonatal Physiology, A Clinical Perspective. Philadelphia: W. B. Saunders Company; 1992.The present study identified that Al induced production of the ROS free radical H2O2, which participated in oxidative stress in neonatal brain. Figure 3 proposed a theoretical diagram of the relationship between aluminum, ROS, anti-oxidative enzymes, and lipid peroxidation. It is adapted from the research findings of Exley, Halliwell,.