SynthesisAnimal models and experimental medicine2025
Systematic review of the subcutaneous air pouch model using monosodium urate and calcium pyrophosphate and recommendations for studying crystal-related arthropathies.
Synthesis in Animal models and experimental medicine, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper, 1 of them a synthesis that pooled it.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
1 citing paper in PubMed, 1 synthesis or guideline pooled it.
- Systematic review of the subcutaneous air pouch model using monosodium urate and calcium pyrophosphate and recommendations for studying crystal-related arthropathies.Animal models and experimental medicine · 2025Pooled it
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
5 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The subcutaneous air pouch model has been used extensively to study the pathophysiology of inflammatory conditions such as joint diseases and the potential efficacy of pharmacological treatments in vivo. Delivery of air between the subcutaneous and dermal layer of the intra-scapular zone of the rodent generates an environment analogous to the synovial joint space. Introduction of monosodium urate crystals or calcium pyrophosphate crystals into the air space produces a sterile acute inflammatory response mimicking clinical gout and pseudogout, respectively. The inflammatory response can be quantitatively and robustly evaluated by measuring leukocyte infiltration, inflammatory cytokine production, eicosanoid release, complement activation and reactive oxygen species generation. Despite the utility of this model, great variation exists within the literature regarding the design, sampling time points, and endpoints measured. This systematic review summarizes the current literature on the subcutaneous air pouch model studying monosodium urate or calcium pyrophosphate crystals and provides recommendations for standardizing and improving the reliability and validity of this model. Standardizing the experimental approach would improve inter-study comparability, increase the internal validity of studies and reproducibility of results, and ultimately improve the understanding of gout and pseudogout and accelerate the discovery of new pharmacological therapies.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.