The effect of automated blood sampling on corticosterone levels, body weight and daily food intake in permanently catheterized male BALB/c mice

TY - JOUR

T1 - The effect of automated blood sampling on corticosterone levels, body weight and daily food intake in permanently catheterized male BALB/c mice

AU - Teilmann, Anne Charlotte

AU - Jacobsen, Kirsten Rosenmaj

AU - Kalliokoski, Otto

AU - Hansen, Axel Jacob Kornerup

AU - Hau, Jann

AU - Abelson, Klas

PY - 2012

Y1 - 2012

N2 - Background/aim: Automated blood sampling has the benefit of sampling without human intervention, thus minimizing the associated stress response. Since this technique has not been thoroughly investigated in mice, the present study was designed to evaluate this technology in mice. Materials and Methods: Male catheterized BALB/c mice were subjected to automated blood sampling, fecal sampling and daily recording of body weight and food intake for three days post-surgery. Corticosterone levels in blood and feces were investigated as biomarkers of stress. Results: Plasma corticosterone levels were elevated, and the circadian rhythm was disrupted as reflected in both plasma and feces. The body weight and daily food intake declined for the first two days post-surgery and increased at day three. Discussion: These results demonstrate that surgery and subsequent automated blood sampling induce a stress response for up to three days post-surgery, and it is concluded that further refinement of this technique is essential.

AB - Background/aim: Automated blood sampling has the benefit of sampling without human intervention, thus minimizing the associated stress response. Since this technique has not been thoroughly investigated in mice, the present study was designed to evaluate this technology in mice. Materials and Methods: Male catheterized BALB/c mice were subjected to automated blood sampling, fecal sampling and daily recording of body weight and food intake for three days post-surgery. Corticosterone levels in blood and feces were investigated as biomarkers of stress. Results: Plasma corticosterone levels were elevated, and the circadian rhythm was disrupted as reflected in both plasma and feces. The body weight and daily food intake declined for the first two days post-surgery and increased at day three. Discussion: These results demonstrate that surgery and subsequent automated blood sampling induce a stress response for up to three days post-surgery, and it is concluded that further refinement of this technique is essential.

KW - Faculty of Health and Medical Sciences

KW - Mice

KW - Blood sampling

KW - Catheterization

KW - BALB/c

M3 - Journal article

SN - 0258-851X

VL - 26

SP - 577

EP - 582

JO - In Vivo

JF - In Vivo

IS - 4

ER -