Effect of Naloxone on Bone Healing in Sheep
Author Information
Author(s): Lucio Petrizzi, Massimo Mariscoli, Luca Valbonetti, Vincenzo Varasano, Jens D. Langhoff, Brigitte Von Rechenberg
Primary Institution: Department of Veterinary Clinical Sciences – University of Teramo, Italy; Musculoskeletal Research Unit – Vetsuisse University of Zürich, Zürich, Switzerland
Hypothesis
Does parenteral naloxone administration enhance bone healing in sheep?
Conclusion
A low-dose parenteral regimen of naloxone enhances mineralization and remodelling of the callus in healing cortical defects in sheep, especially when combined with calcium gluconate.
Supporting Evidence
- Group D showed a higher radiographic ratio than the other groups.
- Sheep not treated with naloxone had a persistently lower ratio in the lateral than the medial cortex.
- Histopathology showed more caverns and fewer osteoblasts in group D than in the other groups.
Takeaway
Giving naloxone can help sheep's bones heal better, especially when it's used with calcium.
Methodology
Twenty ewes were randomly assigned to four treatment groups and received different combinations of calcium gluconate and naloxone for four weeks, with healing evaluated through radiographic examination and histopathology.
Limitations
The study had a low number of animals, which may affect the generalizability of the results.
Participant Demographics
Twenty Italian Appenninica sheep, non-pregnant females aged 2–4 years, weighing 48–64 kg.
Statistical Information
P-Value
p<0.01
Statistical Significance
p<0.01
Digital Object Identifier (DOI)
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