Difference between revisions of "Humane endpoints"

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|Kobaek-Larsen, M., et al., ''Laparoscopy of rats  with experimental liver metastases: a method to assess new humane endpoints.'' Lab Anim, 2004. '''38'''(2): p. 162-8.
 
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Revision as of 10:58, 21 February 2022

A broad definition of Humane endpoint is a concept for continuous refinement of animal studies (Hendriksen et al., 2010).

This broad definition is aligned with the 3R principles (Balls et al., 1995, Russell and Burch, 1959).

Continuous improvements or refinement is embedded in the directive 2010/63 (European Commission, 2010)

  • Article 4.3 Member States shall ensure refinement of breeding, accommodation and care, and of methods used in procedures, eliminating or reducing to the minimum any possible pain, suffering, distress or lasting harm to the animals.


Refinement of study specific endpoints and alternatives to death/moribund as endpoint

Focus of the Study Proposed Endpoint Reference
INFECTIONS, IMMUNE SYSTEM
Infectious diseases Acute phase responses Olfert, E.D. and D.L. Godson, Humane endpoints for infectious disease animal models. ILAR J, 2000. 41(2): p. 99-104.
Body Temperature Olfert, E.D. and D.L. Godson, Humane endpoints for infectious disease animal models. ILAR J, 2000. 41(2): p. 99-104.
Weight loss Olfert, E.D. and D.L. Godson, Humane endpoints for infectious disease animal models. ILAR J, 2000. 41(2): p. 99-104.
Shock by cecal ligations and puncture (CLP) Observation of Loss of ability to ambulate.

Body weight and temperature

Nemzek, J. A., Xiao, H. Y., Minard, A. E., BOLGOS, G. L. & REMICK, D. G. 2004. Humane endpoints in shock research. Shock, 21, 17-25.
Rheumatoid arthritis in rodents Swollen digits, knuckle, midfoot and ancle/wrist scoring, Ulceration, gait and posture analysis Hawkins, P., et al., Applying refinement to the use of mice and rats in rheumatoid arthritis research. Inflammopharmacology, 2015. 23(4): p. 131-50.
Tuberculosis vaccine studies Bodyweight AND Breathing pattern AND activity during handling combined predict need for euthanasia 1 week ahead Collymore, C., Kent, et al. 2018. Humane Endpoints for Guinea Pigs Used for Mycobacterium tuberculosis Vaccine Research. Comparative Medicine, 68, 41-47
Inoculation with infectious organisms Temperature AND Body weight Trammell, R. A. & Toth, L. A. 2011. Markers for predicting death as an outcome for mice used in infectious disease research. Comp Med, 61, 492-8.
CANCER
Early Cancer detection Ultrasound Wang, L. V. (2003). Ultrasound-mediated biophotonic imaging: a review of acousto-optical tomography and photo-acoustic tomography. Disease Markers, 19(2-3), 123–138. https://doi.org/10.1155/2004/478079
Intracranial Glioma in rat Body weight algorithm Helgers, S.O.A., et al., Body weight algorithm predicts humane endpoint in an intracranial rat glioma model. Sci Rep, 2020. 10(1): p. 9020.
Severe irradiations studies in NHP Rapid decrease of body temperature for 3 consecutive days combined with general behaviour score Bertho, J.M., et al., Humane endpoints in severe irradiation experiments using non-human primates: a retrospective analysis. Scandinavian Journal of Laboratory Animal Science, 2020. 46(1): p. 1-15
Total-Body Irradiation in Mouse Body weight, temperature by telemetry Koch, A., et al., Establishment of Early Endpoints in Mouse Total-Body Irradiation Model. PLoS One, 2016. 11(8): p. e0161079.
Colon cancer in rats black feces or presence of fresh blood


Kobaek-Larsen, Morten, Fenger, Claus, & Ritskes-Hoitinga, Jelmera. (2004). Secondary effects induced by the colon carcinogen azoxymethane in BDIX rats. APMIS : Acta Pathologica, Microbiologica et Immunologica Scandinavica, 112(6), 319–329. https://doi.org/10.1111/j.1600-0463.2004.apm1120601.x
Experimental liver metastases Laparoscopy Kobaek-Larsen, M., et al., Laparoscopy of rats with experimental liver metastases: a method to assess new humane endpoints. Lab Anim, 2004. 38(2): p. 162-8.
CNS
Amyotrophic Lateral Sclerosis (ALS) Decline in motoric Function Mead, R.J., et al., Optimised and rapid pre-clinical screening in the SOD1(G93A) transgenic mouse model of amyotrophic lateral sclerosis (ALS). PLoS One, 2011. 6(8): p. e23244.
Home cage running wheel   Bennett, E.J., et al., Early detection of motor dysfunction in the SOD1G93A mouse model of Amyotrophic Lateral Sclerosis (ALS) using home cage running wheels. PLoS One, 2014. 9(9): p. e107918.
Stroke Weight change on the 1st and 3rd day after treatment.

Core temperature change on the 3rd day after treatment (male, stroke model), or with Neuroscore, weight change, and core temperature change on the 2nd day after treatment (female, stroke model) by machine learning.

Mei, J., Banneke, S., et al. Refining humane endpoints in mouse models of disease by systematic review and machine learning-based endpoint definition. ALTEX, 36, 555-571.
TOX testing
Alternatives to LD 50 Hypotermiadose50 (HD50) replaces LD50 Soothill, J. S., Morton, D. B. & Ahmad, A. 1992. The HID50 (hypothermia-inducing dose 50): an alternative to the LD50 for measurement of bacterial virulence. Int J Exp Pathol, 73, 95-8.
SURGERY
Post laparotomy Telemetric recording of heart rate Arras, M., et al., Assessment of post-laparotomy pain in laboratory mice by telemetric recording of heart rate and heart rate variability. BMC Vet Res, 2007. 3: p. 16.


Other organ systems
Murine model for cholestasis Burrowing activity Zhang, X., et al., A rational approach of early humane endpoint determination in a murine model for cholestasis. ALTEX, 2020. 37(2): p. 197-207.
Anti-urolithiasis activity of test compounds by zinc disc implantation Imaging (X-ray radiographs) of the bladder deposits Singh, P.K., et al., Zinc disc implantation model of urinary bladder calculi and humane endpoints. Lab Anim, 2010. 44(3): p. 226-30.
Ocular Herpes virus Infection Combined Body weight reduction (>0.05 g/day) AND Body Temperature less than 34,5°C measured by s.c implanted temperature probe. - Predicted death in 98% of mice. Hankenson, F. C., Ruskoski et al , 2013. Weight Loss and Reduced Body Temperature Determine Humane Endpoints in a Mouse Model of Ocular Herpesvirus Infection. Journal of the American Association for Laboratory Animal Science, 52, 277-285.

OTHER OBSERVATION STRATEGIES WITH POTENTIAL TO BE USED FOR DEFINING ENDPOINTS

In-Tank Underwater Cameras can Refine Monitoring of Laboratory Fish Ellis, T; Rimmer, GSE; Parker, S-J; Joiner, Claire; Sebire, Marion, Verner-Jeffreys, David, Lines, Jeffrey

2019/05/01, 191, 203, In-Tank Underwater Cameras can Refine Monitoring of Laboratory Fish DO  - 10.7120/09627286.28.2.191, Animal Welfare