Soluble epoxide hydrolase research, international collaboration, and translational capacity in Brazil: the scientific legacy of Bruce D. Hammock.

Abstract

The recent passing of Bruce D. Hammock provides a timely opportunity to examine how his contributions to soluble epoxide hydrolase (sEH) biology, inhibitor development, and translational pharmacology extended through international scientific collaboration and mentorship. This minireview examines the Brazilian scientific network associated with Hammock as a descriptive case study and combines an independent structured evidence survey of international research-capacity initiatives with curated PubMed records, information from the Brazilian Currículo Lattes repository, and documentary evidence of scientific exchange and mentorship. Temporal, title-term, geographic, documentary, and mentorship analyses were conducted using reproducible workflows. Of 500 records screened in the evidence survey, 24 bibliographically verified unique records were retained after postsearch audit; collectively, they reported associations between sustained international partnerships and researcher training, institutional strengthening, and scientific production. These records provided comparative context and were not required to involve Hammock or members of his scientific network. PubMed retrieval yielded 17 unique indexed records. Thirteen met the criteria for the core Brazilian sEH/(1-trifluoromethoxyphenyl-3-(1-propionylpiperidin-4-yl) urea [TPPU]) corpus, 3 were retained as contextual records, and 1 was excluded from the core corpus because it did not address sEH or epoxide hydrolase biology. The core corpus remained anchored in sEH inhibition and lipid-mediator biology, while extending into pain, intestinal injury, arthritis, periodontal inflammation, alveolar bone loss, immune regulation, eicosanoid profiling, macrophage plasticity, and osteoblast metabolism. Brazilian institutional participation in the core publication corpus was concentrated in São Paulo, with additional participation from Minas Gerais and Paraná. The broader documentary analysis identified 43 academic outputs explicitly linked to sEH, TPPU, or the defined Brazilian scientific lineage, together with evidence of scientific exchange, access to pharmacological tools, formal mentorship, and multigenerational propagation of the research trajectory. Together, these findings support the interpretation that Hammock's legacy in drug metabolism and disposition extended beyond foundational discoveries and publications to include the local adaptation of a mechanistically coherent translational research program. More broadly, this case illustrates how pharmacological innovation, accessible experimental tools, and sustained scientific mentorship may support the development of research capacity in emerging scientific settings. SIGNIFICANT STATEMENT: Using the Brazilian network associated with Bruce D. Hammock as a case study, this minireview connects advances in soluble epoxide hydrolase biology and inhibitor development with the documented temporal development of the publication corpus, diversification of experimental applications, geographic concentration of institutional participation, and multigenerational mentorship. It shows how scientific legacy in drug metabolism and disposition may extend beyond publications and citations to include the formation of durable translational research capacity.