Journal
CHEMICAL & PHARMACEUTICAL BULLETIN
Volume 58, Issue 9, Pages 1161-1167Publisher
PHARMACEUTICAL SOC JAPAN
DOI: 10.1248/cpb.58.1161
Keywords
microsphere; chitosan; atorvastatin; spinal cord injury; quantification
Funding
- Hacettepe University Scientific Research Project Unit [09-D-03301002-4786]
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Atorvastatin is commonly used as a cholesterol lowering agent in patients. Recently, the neuroprotective effects of atorvastatin became the focus of many research studies. In this study, we have formulated chitosan microspheres containing atorvastatin calcium. In-vitro characterization of chitosan microspheres and quantification of atorvastatin calcium from formulations were also evaluated. The neuroprotective efficiency of atorvastatin calcium was investigated by an experimental spinal cord injury model. Atorvastatin calcium microspheres were implanted at the laminectomy area (1 mg/kg) immediately after trauma. Twenty-four hours after injury, motor functions of animals were scored according to modified Tarlov Scale. In spinal cord tissues tumor necrosis factor (TNF)-alpha, interleukin (IL)-1 beta, IL-6 and lipid peroxidation levels were quantified and ultrastructural changes have been investigated. The results of all parameters indicate that microspheres containing atorvastatin calcium were capable of improving functional outcome, attenuating the expression of TNF-alpha, IL-1 beta and IL-6; lowering lipid peroxidation levels and maintaining the preservation of the cellular uniformity.
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