{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,27]],"date-time":"2026-10-27T18:41:38Z","timestamp":1793126498236,"version":"4.5.0"},"reference-count":75,"publisher":"SAGE Publications","issue":"2","license":[{"start":{"date-parts":[[2015,10,14]],"date-time":"2015-10-14T00:00:00Z","timestamp":1444780800000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.sagepub.com\/page\/policies\/text-and-data-mining-license"}],"content-domain":{"domain":["journals.sagepub.com"],"crossmark-restriction":true},"short-container-title":["Vet Pathol"],"published-print":{"date-parts":[[2016,3]]},"abstract":"<jats:p>The 129 mouse strain is commonly used for the generation of genetically engineered mice. Genetic drift or accidental contamination during outcrossing has resulted in several 129 substrains. Comprehensive data on spontaneous age-related pathology exist for the 129S4\/SvJae substrain, whereas only limited information is available for other 129 substrains. This longitudinal aging study describes the life span and spontaneous lesions of 44 male and 18 female mice of the 129S6\/SvEvTac substrain. Median survival time was 778 and 770 days for males and females, respectively. Tumors of lung and Harderian gland were the most common neoplasms in both sexes. Hepatocellular tumors occurred mainly in males. Hematopoietic tumors were observed at low frequency. Suppurative and ulcerative blepharoconjunctivitis was the most common nonneoplastic condition in both sexes. Corynebacteria (primarily Corynebacterium urealyticum and C. pseudodiphtheriticum) were isolated from animals with blepharoconjunctivitis and in some cases from unaffected mice, although a clear causal association between corynebacterial infections and blepharoconjunctivitis could not be inferred. Polyarteritis occurred only in males and was identified as the most common nonneoplastic contributory cause of death. Eosinophilic crystalline pneumonia occurred in both sexes and was a relevant cause of death or comorbidity. Epithelial hyalinosis at extrapulmonary sites was noted at higher frequency in females. This study contributes important data on the spontaneous age-related pathology of the 129S6\/SvEvTac mouse substrain and is a valuable reference for evaluation of the phenotype in genetically engineered mice obtained with this 129 substrain.<\/jats:p>","DOI":"10.1177\/0300985815608673","type":"journal-article","created":{"date-parts":[[2015,10,14]],"date-time":"2015-10-14T23:49:39Z","timestamp":1444866579000},"page":"477-492","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":18,"title":["The Pathology of Aging 129S6\/SvEvTac Mice"],"prefix":"10.1177","volume":"53","author":[{"given":"E.","family":"Radaelli","sequence":"first","affiliation":[{"name":"VIB11 Center for the Biology of Disease, KU Leuven Center for Human Genetics, Leuven, Belgium"},{"name":"InfraMouse, KU Leuven-VIB, Leuven, 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