{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,6]],"date-time":"2026-07-06T10:14:27Z","timestamp":1783332867824,"version":"3.54.6"},"reference-count":76,"publisher":"MDPI AG","issue":"13","license":[{"start":{"date-parts":[[2026,7,5]],"date-time":"2026-07-05T00:00:00Z","timestamp":1783209600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Animals"],"abstract":"<jats:p>This study investigated the metabolic regulatory effects and underlying microbial mechanisms of Deinococcus radiodurans extract (DRE), using high-fat diet (HFD)-induced obese mice as the primary mechanistic model and naturally overweight felines. In the mouse model, a 1.5% DRE supplementation mitigated HFD-induced obesity, reduced serum total cholesterol and low-density lipoprotein levels, and markedly ameliorated hepatic steatosis. Fecal 16S rRNA gene sequencing revealed that DRE effectively reversed murine microbial dysbiosis by significantly restoring core commensals depleted by the HFD, notably Ureaplasma and the short-chain fatty acid (SCFA)-producer Odoribacter, while concurrently suppressing the overgrowth of obesity-associated taxa including Alloprevotella and Phascolarctobacterium. As a translational complement, a 28-day DRE intervention in felines under isocaloric maintenance conditions, with no significant change in body weight, body condition score, or fecal score, validated these systemic benefits, significantly enhancing serum total antioxidant capacity by 16.1% and reducing the systemic inflammatory marker serum amyloid A by 27.8%, indicating that the antioxidant and anti-inflammatory effects of DRE are independent of weight change. Concurrently, feline fecal microbiota profiling demonstrated a parallel ecological remodeling, characterized by the enrichment of potent SCFA producers (Oscillibacter and the [Eubacterium]_hallii_group) and the profound suppression of the pro-inflammatory pathogen Fusobacterium. Collectively, by integrating deep mechanistic insights from mice with translational evidence from felines, this study demonstrates that DRE exerts comprehensive anti-obesity and anti-inflammatory effects by regulating lipid metabolism and reshaping the gut microbiota, establishing its robust potential as a novel functional ingredient for metabolic health in companion animals.<\/jats:p>","DOI":"10.3390\/ani16132072","type":"journal-article","created":{"date-parts":[[2026,7,6]],"date-time":"2026-07-06T08:05:38Z","timestamp":1783325138000},"page":"2072","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Dietary Supplementation with Deinococcus radiodurans Extract Alleviates Obesity and Systemic Inflammation via Gut Microbiota Modulation in Murine and Feline Models"],"prefix":"10.3390","volume":"16","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-7724-2698","authenticated-orcid":false,"given":"Wangyang","family":"Hu","sequence":"first","affiliation":[{"name":"MOE Key Laboratory of Biosystems Homeostasis and Protection, Institute of Biophysics, College of Life Sciences, Zhejiang University, Hangzhou 310058, China"},{"name":"MetaHealth Technology (Hangzhou) Co., Ltd., Hangzhou 310016, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yan","family":"Wang","sequence":"additional","affiliation":[{"name":"MetaHealth Technology (Hangzhou) Co., Ltd., Hangzhou 310016, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Cong","family":"Hua","sequence":"additional","affiliation":[{"name":"MetaHealth Technology (Hangzhou) Co., Ltd., Hangzhou 310016, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Chenxiang","family":"Shi","sequence":"additional","affiliation":[{"name":"MOE Key Laboratory of Biosystems Homeostasis and Protection, Institute of Biophysics, College of Life Sciences, Zhejiang University, Hangzhou 310058, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yifei","family":"Tu","sequence":"additional","affiliation":[{"name":"MetaHealth Technology (Hangzhou) Co., Ltd., Hangzhou 310016, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Shaotang","family":"Ye","sequence":"additional","affiliation":[{"name":"MetaHealth Technology (Hangzhou) Co., Ltd., Hangzhou 310016, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Min","family":"Hu","sequence":"additional","affiliation":[{"name":"MetaHealth Technology (Hangzhou) Co., Ltd., Hangzhou 310016, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Qiang","family":"Huang","sequence":"additional","affiliation":[{"name":"Jiangxi Zhenghe Environmental Protection Engineering Co., Ltd., Nanchang 330001, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Lin","family":"Lin","sequence":"additional","affiliation":[{"name":"MetaHealth Technology (Hangzhou) Co., Ltd., Hangzhou 310016, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yuejin","family":"Hua","sequence":"additional","affiliation":[{"name":"MOE Key Laboratory of Biosystems Homeostasis and Protection, Institute of Biophysics, College of Life Sciences, Zhejiang University, Hangzhou 310058, China"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2026,7,5]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","unstructured":"Abad-Jimenez, Z., and Vezza, T. 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