Ketamine anaesthesia following premedication of rabbits with vitamin C

Elsa, Abdullahi;Ubandawaki, Stephen

  • Published : 20050900

Abstract

The effects of vitamin C on ketamine anesthesia was studied. In normal rabbits the onset and duration of ketamine induced anesthesia were 6.0$\pm$0.5 and 36.0$\pm$0.9 min, respectively. Pre-treatment of rabbits with 30, 60 and 240 mg/kg, i.m. of vitamin C followed by ketamine 40 mg/ kg i.m. resulted in significant (p<0.05)decrease in the onset and increase in duration of ketamine anesthesia to 5.0$\pm$0.06 and 37.0$\pm$0.7;4.0$\pm$0.5 and 39.0$\pm$0.6;2.0$\pm$2.3 and 44.0$\pm$0.8 min, respectively. There was also significant (p<0.05)decrease in the heart rates in the animals treated with vitamin C and ketamine combinations. Serum analysis showed a significant (p<0.05)increase in blood glucose. The observed decreased in serum calcium and phosphorous following ketamine injection was prevented by pretreatment with vitamin C. These results suggest that vitamin C at higher doses could potentiate ketamine anesthesia in rabbits.

Keywords

References

  1. Ezenwanne EB, Anuka JA. The pattern of gross behavioral activities in acute administration of varying doses of ascorbic acid in rats. Nigerian J Neurosci 1991, 1, 47-59
  2. Fauci A, Braunwald E. Harrison's Principles of Internal Medicine. 4th ed. pp. 484-453, McGraw-Hill, New York, 1998
  3. Flecknell P. Laboratory Animal Anaesthesia. pp. 88-89. Academic Press, London, 1992
  4. Gregg DA, Olson LD. The use of ketamine hydrochloride as an anaesthetic for raccoon. J Wildl Dis 1975, 11, 335-337
  5. Gurnani A, Sharma PK, Rautela RS, Bhattacharya A. Analgesia for acute musculoskeletal trauma; low-dose subcutaneous fusion of ketamine. Anaesth Intensive Care 1996, 24, 32-36
  6. Hemila H. Vitamin C and the common cold. Br J Nutr 1992, 67, 3-16 https://doi.org/10.1079/BJN19920004
  7. King M. Dissociative Anaesthesia and Intravenous Analgesia. pp. 60-62, Oxford University Press, Oxford, 1990
  8. Laurence DR, Bennett PN, Brown MJ. Clinical Pharmacology, 8th ed. pp. 383-384, Churchill Livingstone, London, 1997
  9. Li J. Ketamine emergency applications. In: Plantz SH, Adler JN, Berezin J (eds.). Emergency Medicine Online Text, Boston Medical Publishing (Available at http://www.emedicine.com/emerg/topic802.htm), Boston, 1999
  10. Lyhs B. Influence of ascorbic acid deficiency on the functions of the central nervous system of the guinea pigs. Monatsh Veterinarmed 1961, 16, 131-134
  11. Pitt B, Pollit N. Ascorbic acid and chronic schizophrenia. Br J Psychiatry 1971, 118, 227-228 https://doi.org/10.1192/bjp.118.543.227
  12. Sauberhich HE. Pharmacology of vitamin C. Annu Rev Nutr 1994, 14, 371-391 https://doi.org/10.1146/annurev.nu.14.070194.002103
  13. Sjostrand SE. Pharmacological properties of dehydroascorbic acid. Effects on the central and peripheral nervous systems in experimental animals. Acta Physiol Scand Suppl 1970, 356, 1-79
  14. Stockham SL, Scott MA. Fundamentals of Veterinary Clinical Pathology. pp. 401-406, Iowa State Press, Ames, 2002