Refinement Database

Database on Refinement of Housing, Husbandry, Care, and Use of Animals in Research

This database, created in 2000, is updated every four months with newly published scientific articles, books, and other publications related to improving or safeguarding the welfare of animals used in research.

Tips for using the database:

  • This landing page displays all of the publications in the database.
  • Use the drop-down menus to filter these publications by Animal Type, Setting, and/or Topic.
  • Clicking on a parent category (e.g., Rodent) will include publications relating to all the items in that category (e.g., Chinchilla, Gerbil, Guinea Pig, etc.).
  • You may also add a keyword to further narrow your search.
  • Please note that at this time, only publications dated 2010 or later (with some exceptions) can be filtered by Animal Type and Topic, and only publications dated 2020 or later (with some exceptions) can be filtered by Setting. Most publications older than 2010 can only be searched by keyword. 
Bozzay, J. D., Walker, P. F., Atwood, R. E. et al. 2023. Development, refinement, and characterization of a nonhuman primate critical care environment. PLOS ONE 18(3), e0281548.

Systemic inflammatory response remains a poorly understood cause of morbidity and mortality after traumatic injury. Recent nonhuman primate (NHP) trauma models have been used to characterize the systemic response to trauma, but none have incorporated...

Liu, P., Roberts, S., Shoemaker, J. T. et al. 2023. Validation of a 3D perfused cell culture platform as a tool for humanised preclinical drug testing in breast cancer using established cell lines and patient-derived tissues. PLOS ONE 18(3), e0283044.

3D cell culture models of cancer are currently being developed to recapitulate in vivo physiological conditions and to assess therapeutic responses. However, most models failed to incorporate the biochemical and biophysical stimuli from fluid flow...

Peruga, M., Kawala, B., Sarul, M. et al. 2023. Are currently selected laboratory animals useful in the research of how female hormones influence orthodontic biomechanics? Animals 13(4), 629.

Animal testing was and remains the only method of introducing a certain treatment and medical procedure on humans. On the other hand, animals have their rights resulting from applicable legal acts, including Directive 2010/63/EU and...

Attokaren, M. K., Jeong, N., Blanpain, L. et al. 2023. BrainWAVE: A flexible method for noninvasive stimulation of brain rhythms across species. ENeuro 10(2) ENEURO.0257-22.2022.

Rhythmic neural activity, which coordinates brain regions and neurons to achieve multiple brain functions, is impaired in many diseases. Despite the therapeutic potential of driving brain rhythms, methods to noninvasively target deep brain regions are...

Martinez-Lopez, S., Angel-Gomis, E., Sanchez-Ardid, E. et al. 2023. The 3Rs in experimental liver disease. Animals 13(14), 2357.

Patients with cirrhosis present multiple physiological and immunological alterations that play a very important role in the development of clinically relevant secondary complications to the disease. Experimentation in animal models is essential to understand the...

Guerrero-Martin, S. M., Brill, S., Carlson, B. W. 2022. Development and implementation of a positive reinforcement training program for nonhuman primates in biomedical research. Laboratory Animal Science Professional 10(1) (January/February), 48-52.

Despite clear benefits of PRT for NHPs and biomedical research, investigators often view the investment in personnel expertise and time required to train animals as deterrents towards adopting PRT. We provide an example of how...

Chung, Y. H., Gulumian, M., Pleus, R. C. et al. 2022. Animal welfare considerations when conducting OECD test guideline inhalation and toxicokinetic studies for nanomaterials. Animals 12(23), 3305.

The OECD test guidelines for animal experiments play an important role in evaluating the chemical hazards. Animal tests performed using OECD guidelines, especially when the good laboratory practice (GLP) principle is applied, reduce the duplication...

Serrano, C., Antonio, J. 2022. Ultrasound guided surgery as a refinement tool in oncology research. Animals 12(23), 3445.

Refinement is one of the ethical pillars of the use of animals in research. Ultrasonography is currently used in human medicine as a surgical tool for guided biopsies and this idea can be applied to...

Leeds, A., Boyer, D., Ross, S. R. et al. 2021. Patterns of wounding in mixed-sex social groups of western lowland gorillas (Gorilla gorilla gorilla). Applied Animal Behaviour Science 236, 105226.

Long-term, multi-institutional assessments have become a reliable tool for evaluating patterns of wounding in zoo-living primates, with results informing on best practices for species-specific care protocols and population management strategies. For western lowland gorillas (Gorilla...

Vis, A., Lammers, J. C. A. M., de Vroege, R. et al. 2021. Strategies to improve survival from surgery for heart valve implantation in sheep. Comparative Medicine 71(3), 235-239.

Sheep are a commonly used and validated model for cardiovascular research and, more specifically, for heart valve research. Implanting a heart valve on the arrested heart in sheep is complex and is often complicated by...

Haertel, A. J., Schultz, M. A., Colgin, L. M. et al. 2021. Predictors of subcutaneous injection site reactions to sustained-release buprenorphine in rhesus macaques (Macaca mulatta). JAALAS 60(3), 329-336.

Subcutaneous injection site reactions to sustained-release buprenorphine hydrochloride (Buprenorphine SR) in macaques have been reported in only a single case report. In the current study, we evaluated the incidence rate and predictors of buprenorphine SR...

Archibald, W., Glynn, C. 2021. Refining cages for social housing of non-human primates on ADME studies. Animal Technology and Welfare 20(2), 172-174.

The assessment and understanding of Absorption, Distribution, Metabolism and Elimination (ADME) for new pharmaceuticals is required in regulatory submissions. Typically, ADME studies are conducted using metabolism cages designed for the single housing of animals to...

Guerrero-Martin, S. M., Rubin, L. H., McGee, K. M. et al. 2021. Psychosocial stress alters the immune response and results in higher viral load during acute simian immunodeficiency virus infection in a pigtailed macaque model of human immunodeficiency virus. The Journal of Infectious Diseases 224(12), 2113–2121.

Although social distancing is a key public health response during viral pandemics, psychosocial stressors, such as social isolation, have been implicated in adverse health outcomes in general [1] and in the context of infectious disease...

Bertho, J.-M., Ancelet, S., Denais-Laliève, D. et al. 2020. Humane endpoints in severe irradiation experiments using non-human primates: A retrospective analysis. Scandinavian Journal of Laboratory Animal Science 46(1).

A retrospective statistical study has been performed in order to identify the biological, clinical and behavioural variables that could potentially predict the survival status of irradiated non-human primates (NHP) and to refine the future use...

Larson, C. M., Wilcox, G. L., Fairbanks, C. A. 2019. Defining and managing pain in stroke and traumatic brain injury research. Comparative Medicine 69(6), 510–519.

Neurologic conditions such as stroke and traumatic brain injury are challenging conditions to study in humans. Animal models are necessary to uncover disease processes and develop novel therapies. When attempting to model these or other...

Reinhardt, V. (ed.) 2020. It’s Okay to Cry - Discussions by the Laboratory Animal Refinement & Enrichment Forum [LAREF], Volume V. Animal Welfare Institute, Washington, DC.

This is the 5th volume of selected discussions that took place on the electronic Laboratory Animal Refinement & Enrichment Forum between February 2016 and December 2019. The forum was created in October 2002; it allows...

Engel, R. M., Thomas III, M. L., Banks, R. E. 2019. Regional anesthesia for dentistry and orofacial surgery in rhesus macaques (Macaca mulatta). JAALAS 58(2), 223-230.

Regional anesthesia is a commonly used adjunct to orofacial dental and surgical procedures in companion animals and humans. However, appropriate techniques for anesthetizing branches of the mandibular and maxillary nerves have not been described for...

Heyworth, C. 2019. Inventive enrichment to facilitate weight gain in the common marmoset (Callithrix jacchus) during invasive studies. Laboratory Animal Science Professional 7(4) (December), 38-41.

To provide the highest standard of care to marmosets during invasive surgical studies, studies that often lead to weight loss, it is paramount to call upon inherent species-specific enrichment tactics to mitigate weight loss. Weight...

Currie, G. L., Angel-Scott, H. N., Colvin, L. et al. 2019. Animal models of chemotherapy-induced peripheral neuropathy: A machine-assisted systematic review and meta-analysis. PLOS Biology 17(5), e3000243.

We report a systematic review and meta-analysis of research using animal models of chemotherapy-induced peripheral neuropathy (CIPN). We systematically searched 5 online databases in September 2012 and updated the search in November 2015 using machine...

Ekman, L., Nyman, A.-K., Landin, H. et al. 2018. Hock lesions in dairy cows in freestall herds: A cross-sectional study of prevalence and risk factors. Acta Vererinaria Scandinavica 60(1), 47.

Hock lesions (HL) in dairy cows are a common animal welfare problem in modern dairy production with freestall housing systems, but there are no large-scale studies addressing its epidemiology in Sweden. The aims of this...

Editorial. 2017. Reducing lameness in sheep: new approach recommended. Veterinary Record 180(23), 555.

Farm vets can recommend that sheep farmers stop routine foot trimming to treat lameness in their flocks. Instead, they should treat cases of footrot, the major cause of lameness, with an injectable antibiotic and a...

Foditsch, C., Oikonomou, G., Machado, V. S. et al. 2016. Lameness prevalence and risk factors in large dairy farms in upstate New York. Model development for the prediction of claw horn disruption lesions. PLOS ONE 11(1), e0146718.

The main objectives of this prospective cohort study were a) to describe lameness prevalence at drying off in large high producing New York State herds based on visual locomotion score (VLS) and identify potential cow...

Maijer, A. M., Semple, S. 2016. Investigating potential effects of the contraceptive Implanon on the behavior of free-ranging adult female Barbary macaques. Journal of Applied Animal Welfare Science 19(1), 16-23.

In recent years, the use of hormonal contraception in captive, free-ranging, and wild mammal populations has increased, but the effects on these nonhuman animals’ behavior and the associated welfare impacts remain poorly understood. This study...

Hedrick, C., Rowley, M., Lewis, S. 2014. Repurposing and recycling an institutionally retired enrichment device. American Association for Laboratory Animal Science [AALAS] Meeting Official Program, 564 (Abstract #P56).

One aspect of maintaining and updating an environmental enrichment program is regular review of enrichment devices and their current uses. The review includes maintaining an accurate inventory to reflect the animal census, evaluating species-specific use...

Reamer, L. A., Haller, R. H., Thiele, E. J. et al. 2014. Factors affecting initial training success of blood glucose testing in captive chimpanzees (Pan troglodytes). Zoo Biology 33(3), 212-220.

Type 2 diabetes can be a problem for captive chimpanzees. Accurate blood glucose (BG) readings are necessary to monitor and treat this disease. Thus, obtaining voluntary samples from primates through positive reinforcement training (PRT) is...