Therapeutic effects of nano-HAp in a rat model of AlCl3 induced neurotoxicity

Document Type : Research article


Radioisotopes Department, Egyptian Atomic Energy Authority, Cairo, Egypt.


With the advance in nanomedicine, the present study was conducted to explore the possible therapeutic role of intravenous nano- hydroxyapatite (nano-HAp) into male rats after chronic exposure to aluminum chloride (AlCl3). This exposure interposed DNA fragmentation, apoptosis, alters oxidant/antioxidant status as well as change in content of neurotransmitters. The rats were injected with 100 mg/kg. body weight (b.w.) of AlCl3 intraperitoneally for 90 days, after then nano-HAp was injected intravenously (i.v.) three times per week at a dose level 100 mg/kg b.w.Based on the results obtained, it can be concluded that the treatment with the prepared nano-HAp restrains the damage inflicted on brain modulating by lipid oxidation products and decreased the susceptibility of apoptotic cells death with subsequent repaired the fragmented DNA as well as improved the synthesis of neurotransmitters. The most salient findings for nano-HAp treatment are that most of the pathological changes due to AlCl3 administration were disappeared.


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