Aged gut microbiota contribute to different changes in antioxidant defense in the heart and liver after transfer to germ-free mice
Age-associated impairment in antioxidant defense is an important cause of oxidative stress, and elderly individuals are usually associated with gut microbiota (GM) changes. Studies have suggested a potential relationship between the GM and changes in antioxidant defense in aging animals. Direct evid...
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| Veröffentlicht in: | PloS one 2023-08, Vol.18 (8), p.e0289892-e0289892 |
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| description | Age-associated impairment in antioxidant defense is an important cause of oxidative stress, and elderly individuals are usually associated with gut microbiota (GM) changes. Studies have suggested a potential relationship between the GM and changes in antioxidant defense in aging animals. Direct evidence regarding the impact of aging-associated shifts in GM on the antioxidant defense is lacking. The heart is a kind of postmitotic tissue, which is more prone to oxidative stress than the liver (mitotic tissue). To test and compare the influence of an aged GM on antioxidant defense changes in the heart and liver of the host, in this study, GM from young adolescent (5 weeks) or aged (20 months) mice was transferred to young adolescent (5 weeks) germ-free (GF) mice (N = 5 per group) by fecal microbiota transplantation (FMT). Four weeks after the first FMT was performed, fecal samples were collected for 16S rRNA sequencing. Blood, heart and liver samples were harvested for oxidative stress marker and antioxidant defense analysis. The results showed that mice that received young or aged microbiota showed clear differences in GM composition and diversity. Mice that received aged microbiota had a lower ratio of Bacteroidetes/Firmicutes in GM at the phylum level and an increased relative abundance of four GM genera: Akkermansia, Dubosiella, Alistipes and Rikenellaceae_RC9_gut_group. In addition, GM α-diversity scores based on the Shannon index and Simpson index were significantly higher in aged GM-treated mice. Oxidative stress marker and antioxidant defense tests showed that FMT from aged donors did not have a significant influence on malondialdehyde content in serum, heart and liver. However, the capacity of anti-hydroxyl radicals in the heart and liver, as well as the capacity of anti-superoxide anions in the liver, were significantly increased in mice with aged microbiota. FMT from aged donors increased the activities of Cu/Zn superoxide SOD (Cu/Zn-SOD), catalase (CAT) and glutathione-S-transferase in the heart, as well as the activity of Cu/Zn-SOD in the liver. Positive correlations were found between Cu/Zn-SOD activity and radical scavenging capacities. On the other hand, glutathione reductase activity and glutathione content in the liver were decreased in mice that received aged GM. These findings suggest that aged GM transplantation from hosts is sufficient to influence the antioxidant defense system of young adolescent recipients in an organ-dependent manner |
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Studies have suggested a potential relationship between the GM and changes in antioxidant defense in aging animals. Direct evidence regarding the impact of aging-associated shifts in GM on the antioxidant defense is lacking. The heart is a kind of postmitotic tissue, which is more prone to oxidative stress than the liver (mitotic tissue). To test and compare the influence of an aged GM on antioxidant defense changes in the heart and liver of the host, in this study, GM from young adolescent (5 weeks) or aged (20 months) mice was transferred to young adolescent (5 weeks) germ-free (GF) mice (N = 5 per group) by fecal microbiota transplantation (FMT). Four weeks after the first FMT was performed, fecal samples were collected for 16S rRNA sequencing. Blood, heart and liver samples were harvested for oxidative stress marker and antioxidant defense analysis. The results showed that mice that received young or aged microbiota showed clear differences in GM composition and diversity. Mice that received aged microbiota had a lower ratio of Bacteroidetes/Firmicutes in GM at the phylum level and an increased relative abundance of four GM genera: Akkermansia, Dubosiella, Alistipes and Rikenellaceae_RC9_gut_group. In addition, GM α-diversity scores based on the Shannon index and Simpson index were significantly higher in aged GM-treated mice. Oxidative stress marker and antioxidant defense tests showed that FMT from aged donors did not have a significant influence on malondialdehyde content in serum, heart and liver. However, the capacity of anti-hydroxyl radicals in the heart and liver, as well as the capacity of anti-superoxide anions in the liver, were significantly increased in mice with aged microbiota. FMT from aged donors increased the activities of Cu/Zn superoxide SOD (Cu/Zn-SOD), catalase (CAT) and glutathione-S-transferase in the heart, as well as the activity of Cu/Zn-SOD in the liver. Positive correlations were found between Cu/Zn-SOD activity and radical scavenging capacities. On the other hand, glutathione reductase activity and glutathione content in the liver were decreased in mice that received aged GM. These findings suggest that aged GM transplantation from hosts is sufficient to influence the antioxidant defense system of young adolescent recipients in an organ-dependent manner, which highlights the importance of the GM in the aging process of the host.</description><identifier>ISSN: 1932-6203</identifier><identifier>EISSN: 1932-6203</identifier><identifier>DOI: 10.1371/journal.pone.0289892</identifier><identifier>PMID: 37566569</identifier><language>eng</language><publisher>United States: Public Library of Science</publisher><subject>Acids ; Adolescents ; Aging ; Animal models ; Anions ; Antioxidants ; Bar codes ; Biology and Life Sciences ; Care and treatment ; Catalase ; Copper ; Defense ; Diagnosis ; Donors ; Enzymes ; Fecal microflora ; Feces ; Free radicals ; Geriatrics ; Germfree ; Glutathione ; Glutathione reductase ; Glutathione transferase ; Health aspects ; Heart ; Heart diseases ; Hydroxyl radicals ; Intestinal microflora ; Liver ; Liver diseases ; Liver transplants ; Males ; Medical research ; Medicine and Health Sciences ; Microbiota ; Microbiota (Symbiotic organisms) ; Microorganisms ; Older people ; Oxidation ; Oxidative stress ; Physiology ; Reductases ; Relative abundance ; Respiration ; rRNA 16S ; Scavenging ; Superoxide anions ; Superoxide dismutase ; Taxonomy ; Transplantation ; Zinc</subject><ispartof>PloS one, 2023-08, Vol.18 (8), p.e0289892-e0289892</ispartof><rights>Copyright: © 2023 Hong et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.</rights><rights>COPYRIGHT 2023 Public Library of Science</rights><rights>2023 Hong et al. This is an open access article distributed under the terms of the Creative Commons Attribution License: http://creativecommons.org/licenses/by/4.0/ (the “License”), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.</rights><rights>2023 Hong et al 2023 Hong et al</rights><rights>2023 Hong et al. This is an open access article distributed under the terms of the Creative Commons Attribution License: http://creativecommons.org/licenses/by/4.0/ (the “License”), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c627t-933ca28cda4d8aae1604aa2e8cb020e950d19882c31cf8d55e8ffc922f826f4c3</citedby><cites>FETCH-LOGICAL-c627t-933ca28cda4d8aae1604aa2e8cb020e950d19882c31cf8d55e8ffc922f826f4c3</cites><orcidid>0009-0005-3737-0739</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC10420372/pdf/$$EPDF$$P50$$Gpubmedcentral$$Hfree_for_read</linktopdf><linktohtml>$$Uhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC10420372/$$EHTML$$P50$$Gpubmedcentral$$Hfree_for_read</linktohtml><link.rule.ids>230,314,727,780,784,864,885,2928,23866,27924,27925,53791,53793</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/37566569$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><contributor>Ojcius, David M.</contributor><creatorcontrib>Hong, Yang</creatorcontrib><creatorcontrib>Dong, Han</creatorcontrib><creatorcontrib>Zhou, Jing</creatorcontrib><creatorcontrib>Luo, Ya</creatorcontrib><creatorcontrib>Yuan, Ming-Ming</creatorcontrib><creatorcontrib>Zhan, Jia-Fei</creatorcontrib><creatorcontrib>Liu, Yang-Lu</creatorcontrib><creatorcontrib>Xia, Jie-Ying</creatorcontrib><creatorcontrib>Zhang, Lei</creatorcontrib><title>Aged gut microbiota contribute to different changes in antioxidant defense in the heart and liver after transfer to germ-free mice</title><title>PloS one</title><addtitle>PLoS One</addtitle><description>Age-associated impairment in antioxidant defense is an important cause of oxidative stress, and elderly individuals are usually associated with gut microbiota (GM) changes. Studies have suggested a potential relationship between the GM and changes in antioxidant defense in aging animals. Direct evidence regarding the impact of aging-associated shifts in GM on the antioxidant defense is lacking. The heart is a kind of postmitotic tissue, which is more prone to oxidative stress than the liver (mitotic tissue). To test and compare the influence of an aged GM on antioxidant defense changes in the heart and liver of the host, in this study, GM from young adolescent (5 weeks) or aged (20 months) mice was transferred to young adolescent (5 weeks) germ-free (GF) mice (N = 5 per group) by fecal microbiota transplantation (FMT). Four weeks after the first FMT was performed, fecal samples were collected for 16S rRNA sequencing. Blood, heart and liver samples were harvested for oxidative stress marker and antioxidant defense analysis. The results showed that mice that received young or aged microbiota showed clear differences in GM composition and diversity. Mice that received aged microbiota had a lower ratio of Bacteroidetes/Firmicutes in GM at the phylum level and an increased relative abundance of four GM genera: Akkermansia, Dubosiella, Alistipes and Rikenellaceae_RC9_gut_group. In addition, GM α-diversity scores based on the Shannon index and Simpson index were significantly higher in aged GM-treated mice. Oxidative stress marker and antioxidant defense tests showed that FMT from aged donors did not have a significant influence on malondialdehyde content in serum, heart and liver. However, the capacity of anti-hydroxyl radicals in the heart and liver, as well as the capacity of anti-superoxide anions in the liver, were significantly increased in mice with aged microbiota. FMT from aged donors increased the activities of Cu/Zn superoxide SOD (Cu/Zn-SOD), catalase (CAT) and glutathione-S-transferase in the heart, as well as the activity of Cu/Zn-SOD in the liver. Positive correlations were found between Cu/Zn-SOD activity and radical scavenging capacities. On the other hand, glutathione reductase activity and glutathione content in the liver were decreased in mice that received aged GM. These findings suggest that aged GM transplantation from hosts is sufficient to influence the antioxidant defense system of young adolescent recipients in an organ-dependent manner, which highlights the importance of the GM in the aging process of the host.</description><subject>Acids</subject><subject>Adolescents</subject><subject>Aging</subject><subject>Animal models</subject><subject>Anions</subject><subject>Antioxidants</subject><subject>Bar codes</subject><subject>Biology and Life Sciences</subject><subject>Care and treatment</subject><subject>Catalase</subject><subject>Copper</subject><subject>Defense</subject><subject>Diagnosis</subject><subject>Donors</subject><subject>Enzymes</subject><subject>Fecal microflora</subject><subject>Feces</subject><subject>Free radicals</subject><subject>Geriatrics</subject><subject>Germfree</subject><subject>Glutathione</subject><subject>Glutathione reductase</subject><subject>Glutathione transferase</subject><subject>Health aspects</subject><subject>Heart</subject><subject>Heart diseases</subject><subject>Hydroxyl radicals</subject><subject>Intestinal microflora</subject><subject>Liver</subject><subject>Liver diseases</subject><subject>Liver transplants</subject><subject>Males</subject><subject>Medical research</subject><subject>Medicine and Health Sciences</subject><subject>Microbiota</subject><subject>Microbiota (Symbiotic organisms)</subject><subject>Microorganisms</subject><subject>Older people</subject><subject>Oxidation</subject><subject>Oxidative stress</subject><subject>Physiology</subject><subject>Reductases</subject><subject>Relative abundance</subject><subject>Respiration</subject><subject>rRNA 16S</subject><subject>Scavenging</subject><subject>Superoxide anions</subject><subject>Superoxide 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gut microbiota contribute to different changes in antioxidant defense in the heart and liver after transfer to germ-free mice</title><author>Hong, Yang ; Dong, Han ; Zhou, Jing ; Luo, Ya ; Yuan, Ming-Ming ; Zhan, Jia-Fei ; Liu, Yang-Lu ; Xia, Jie-Ying ; Zhang, Lei</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c627t-933ca28cda4d8aae1604aa2e8cb020e950d19882c31cf8d55e8ffc922f826f4c3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2023</creationdate><topic>Acids</topic><topic>Adolescents</topic><topic>Aging</topic><topic>Animal models</topic><topic>Anions</topic><topic>Antioxidants</topic><topic>Bar codes</topic><topic>Biology and Life Sciences</topic><topic>Care and treatment</topic><topic>Catalase</topic><topic>Copper</topic><topic>Defense</topic><topic>Diagnosis</topic><topic>Donors</topic><topic>Enzymes</topic><topic>Fecal microflora</topic><topic>Feces</topic><topic>Free 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one</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Hong, Yang</au><au>Dong, Han</au><au>Zhou, Jing</au><au>Luo, Ya</au><au>Yuan, Ming-Ming</au><au>Zhan, Jia-Fei</au><au>Liu, Yang-Lu</au><au>Xia, Jie-Ying</au><au>Zhang, Lei</au><au>Ojcius, David M.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Aged gut microbiota contribute to different changes in antioxidant defense in the heart and liver after transfer to germ-free mice</atitle><jtitle>PloS one</jtitle><addtitle>PLoS One</addtitle><date>2023-08-11</date><risdate>2023</risdate><volume>18</volume><issue>8</issue><spage>e0289892</spage><epage>e0289892</epage><pages>e0289892-e0289892</pages><issn>1932-6203</issn><eissn>1932-6203</eissn><abstract>Age-associated impairment in antioxidant defense is an important cause of oxidative stress, and elderly individuals are usually associated with gut microbiota (GM) changes. Studies have suggested a potential relationship between the GM and changes in antioxidant defense in aging animals. Direct evidence regarding the impact of aging-associated shifts in GM on the antioxidant defense is lacking. The heart is a kind of postmitotic tissue, which is more prone to oxidative stress than the liver (mitotic tissue). To test and compare the influence of an aged GM on antioxidant defense changes in the heart and liver of the host, in this study, GM from young adolescent (5 weeks) or aged (20 months) mice was transferred to young adolescent (5 weeks) germ-free (GF) mice (N = 5 per group) by fecal microbiota transplantation (FMT). Four weeks after the first FMT was performed, fecal samples were collected for 16S rRNA sequencing. Blood, heart and liver samples were harvested for oxidative stress marker and antioxidant defense analysis. The results showed that mice that received young or aged microbiota showed clear differences in GM composition and diversity. Mice that received aged microbiota had a lower ratio of Bacteroidetes/Firmicutes in GM at the phylum level and an increased relative abundance of four GM genera: Akkermansia, Dubosiella, Alistipes and Rikenellaceae_RC9_gut_group. In addition, GM α-diversity scores based on the Shannon index and Simpson index were significantly higher in aged GM-treated mice. Oxidative stress marker and antioxidant defense tests showed that FMT from aged donors did not have a significant influence on malondialdehyde content in serum, heart and liver. However, the capacity of anti-hydroxyl radicals in the heart and liver, as well as the capacity of anti-superoxide anions in the liver, were significantly increased in mice with aged microbiota. FMT from aged donors increased the activities of Cu/Zn superoxide SOD (Cu/Zn-SOD), catalase (CAT) and glutathione-S-transferase in the heart, as well as the activity of Cu/Zn-SOD in the liver. Positive correlations were found between Cu/Zn-SOD activity and radical scavenging capacities. On the other hand, glutathione reductase activity and glutathione content in the liver were decreased in mice that received aged GM. These findings suggest that aged GM transplantation from hosts is sufficient to influence the antioxidant defense system of young adolescent recipients in an organ-dependent manner, which highlights the importance of the GM in the aging process of the host.</abstract><cop>United States</cop><pub>Public Library of Science</pub><pmid>37566569</pmid><doi>10.1371/journal.pone.0289892</doi><tpages>e0289892</tpages><orcidid>https://orcid.org/0009-0005-3737-0739</orcidid><oa>free_for_read</oa></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 1932-6203 |
| ispartof | PloS one, 2023-08, Vol.18 (8), p.e0289892-e0289892 |
| issn | 1932-6203 1932-6203 |
| language | eng |
| recordid | cdi_plos_journals_2849307184 |
| source | DOAJ Directory of Open Access Journals; Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals; Public Library of Science (PLoS); PubMed Central; Free Full-Text Journals in Chemistry |
| subjects | Acids Adolescents Aging Animal models Anions Antioxidants Bar codes Biology and Life Sciences Care and treatment Catalase Copper Defense Diagnosis Donors Enzymes Fecal microflora Feces Free radicals Geriatrics Germfree Glutathione Glutathione reductase Glutathione transferase Health aspects Heart Heart diseases Hydroxyl radicals Intestinal microflora Liver Liver diseases Liver transplants Males Medical research Medicine and Health Sciences Microbiota Microbiota (Symbiotic organisms) Microorganisms Older people Oxidation Oxidative stress Physiology Reductases Relative abundance Respiration rRNA 16S Scavenging Superoxide anions Superoxide dismutase Taxonomy Transplantation Zinc |
| title | Aged gut microbiota contribute to different changes in antioxidant defense in the heart and liver after transfer to germ-free mice |
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