A comparison of the rate of recovery of in exhaled breath with 2H in body water following ingestion of [2H/13C]octanoic acid in a dog

Wyse, C.A., Yam, P.S. , Slater, C., Cooper, J.M. and Preston, T. (2003) A comparison of the rate of recovery of in exhaled breath with 2H in body water following ingestion of [2H/13C]octanoic acid in a dog. Research in Veterinary Science, 74(2), pp. 123-127. (doi: 10.1016/S0034-5288(02)00178-9)

Abstract

The objective of this study was to assess post-gastric processing of octanoic acid (OA) by comparing the rate of recovery of 13C in breath with the rate of recovery of 2H in saliva following ingestion of [2H/13C]OA. A test meal with 100 mg [13C]OA and 750 mg [2H]OA was ingested on two separate occasions by one dog. Exhaled breath and saliva samples were collected at set time points for 6 h following ingestion of the test meal. Two indices were computed, half recovery time (t1/2) and the time of peak excretion (tmax). Recovery of 2H in saliva was quicker than recovery of 13C in breath as determined by the difference in the indices for each isotope; 1.33 and 1.59 h for t1/2 and tmax, respectively. These findings suggest that the post-gastric processing of OA imposes a delay on the recovery of 13C in breath in the dog, as occurs in man and in the horse.

• Item Type: Articles
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: Slater, Dr Christine and Wyse, Dr Cathy and Preston, Professor Tom and Cooper, Professor Jonathan and Yam, Dr Philippa
• Authors: Wyse, C.A., Yam, P.S., Slater, C., Cooper, J.M., and Preston, T.
• College/School: College of Medical Veterinary and Life Sciences > School of Medicine, Dentistry & Nursing; College of Medical Veterinary and Life Sciences > School of Biodiversity, One Health & Veterinary Medicine; College of Science and Engineering > School of Engineering > Biomedical Engineering; College of Science and Engineering > Scottish Universities Environmental Research Centre
• Journal Name: Research in Veterinary Science
• ISSN: 0034-5288