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A Mouse Model of Orthopedic Surgery to Study Postoperative Cognitive Dysfunction and Tissue Regeneration
Published on: February 27, 2018
Meloxicam improves object recognition memory and modulates glial activation after splenectomy in mice
Angela R Kamer1, Samuel M Galoyan, Michael Haile
1Department of Periodontics and Implant Dentistry, New York University College of Dentistry, New York University Medical Center, New York, USA. ark5@nyu.edu
European Journal of Anaesthesiology
|April 20, 2012
Summary
Meloxicam, a COX-2 inhibitor, improved cognitive function and reduced neuroinflammation after surgery in mice. This suggests targeting COX-2 may help prevent postoperative cognitive dysfunction (POCD).
Area of Science:
- Neuroscience
- Pharmacology
- Surgical Research
Background:
- Surgery can trigger neuroinflammation, a key factor in developing postoperative cognitive dysfunction (POCD).
- Understanding the mechanisms behind POCD is crucial for developing effective preventative strategies.
Purpose of the Study:
- To investigate the potential of meloxicam, a selective cyclooxygenase (COX)-2 inhibitor, to preserve cognitive function post-surgery.
- To determine if meloxicam can inhibit surgery-induced neuroinflammation in a mouse model.
Main Methods:
- A mouse model utilizing splenectomy to induce inflammation.
- Randomized groups of mice received either saline or meloxicam (60 mg/kg) post-splenectomy.
- Cognitive function was assessed using the Object Recognition Test (ORT), and neuroinflammation was evaluated via glial cell staining.
Main Results:
- Splenectomy led to a significant decrease in Object Recognition Test (ORT) indices, indicating cognitive dysfunction.
- Meloxicam administration significantly attenuated this decrease in ORT indices.
- Histological analysis revealed reduced microglia activation in meloxicam-treated mice.
Conclusions:
- Cyclooxygenase-2 (COX-2) dependent pathways are implicated in the development of postoperative cognitive dysfunction (POCD).
- Meloxicam's ability to preserve cognitive function may be linked to its modulation of glial cell activation and neuroinflammation.
