Duodenal-Jejunal Bypass Surgery Stimulates the Expressions of Hepatic Sirtuin1 and 3 and Hypothalamic Sirtuin1
Background: Sirtuins mediate metabolic responses to nutrient availability and slow aging and accompanying decline in health. This study was designed to assess the expressions of sirtuin1 (SIRT1) and sirtuin3 (SIRT3) in the liver and hypothalamus after duodenal-jejunal bypass (DJB) surgery in rats. M...
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| Format: | Article |
| Language: | English |
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Korean Society for the Study of Obesity
2018-12-01
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| Series: | Journal of Obesity & Metabolic Syndrome |
| Subjects: | |
| Online Access: | https://doi.org/10.7570/jomes.2018.27.4.248 |
| _version_ | 1819107706398572544 |
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| author | Eunyoung Ha Jong Yeon Kang Kyung Sik Park Youn Kyoung Seo Tae Kyung Ha |
| author_facet | Eunyoung Ha Jong Yeon Kang Kyung Sik Park Youn Kyoung Seo Tae Kyung Ha |
| author_sort | Eunyoung Ha |
| collection | DOAJ |
| description | Background: Sirtuins mediate metabolic responses to nutrient availability and slow aging and accompanying decline in health. This study was designed to assess the expressions of sirtuin1 (SIRT1) and sirtuin3 (SIRT3) in the liver and hypothalamus after duodenal-jejunal bypass (DJB) surgery in rats. Methods: A total of 38 rats were randomly assigned to either sham group (n=8) or DJB group (n=30). DJB group was again divided into three groups according to the elapsed time after surgery (10 weeks, DJB10; 16 week, DJB16; 28 week, DJB28). The mRNA and protein expressions of SIRT1 and SIRT3 in the liver and hypothalamus were measured by reverse transcription polymerase chain reaction, Western blot, and immunohistochemistry analyses. NAD⁺/NADH ratio was also measured. Results: We found increased mRNA and protein expression levels of SIRT1 in the liver of DJB16 and DJB28 groups compared with those of sham group. The mRNA and protein expressions of SIRT3 in the liver of DJB group increased proportionally to the elapsed time after DJB surgery. The mRNA expression levels of SIRT1 in the hypothalamus increased in DJB16 and DJB28 groups and protein expression levels of SIRT1 in the hypothalamus increased in DJB10, DBJ16, and DJB28 groups compared with sham group. We observed that mRNA and protein levels of SIRT3 in the hypothalamus of DJB group were not changed. Conclusion: This study proves that DJB increases SIRT1 and SIRT3 expressions in the liver and SIRT1 expression in the hypothalamus. These results suggest the possibility of sirtuins being involved in bypass surgery-induced metabolic changes. |
| first_indexed | 2024-12-22T02:58:18Z |
| format | Article |
| id | doaj.art-cae674ffc06d4317ac76faf85b478ffa |
| institution | Directory Open Access Journal |
| issn | 2508-6235 |
| language | English |
| last_indexed | 2024-12-22T02:58:18Z |
| publishDate | 2018-12-01 |
| publisher | Korean Society for the Study of Obesity |
| record_format | Article |
| series | Journal of Obesity & Metabolic Syndrome |
| spelling | doaj.art-cae674ffc06d4317ac76faf85b478ffa2022-12-21T18:41:13ZengKorean Society for the Study of ObesityJournal of Obesity & Metabolic Syndrome2508-62352018-12-0127424825310.7570/jomes.2018.27.4.248jomes.2018.27.4.248Duodenal-Jejunal Bypass Surgery Stimulates the Expressions of Hepatic Sirtuin1 and 3 and Hypothalamic Sirtuin1Eunyoung Ha0Jong Yeon Kang1Kyung Sik Park2Youn Kyoung Seo3Tae Kyung Ha4Department of Biochemistry, Keimyung University School of Medicine, Daegu, KoreaDepartment of Biochemistry, Keimyung University School of Medicine, Daegu, KoreaDepartment of Biochemistry, Keimyung University School of Medicine, Daegu, KoreaDepartment of Anatomy and Cell Biology, Hanyang University College of Medicine, Seoul, KoreaDepartment of Surgery, Hanyang University College of Medicine, Seoul, KoreaBackground: Sirtuins mediate metabolic responses to nutrient availability and slow aging and accompanying decline in health. This study was designed to assess the expressions of sirtuin1 (SIRT1) and sirtuin3 (SIRT3) in the liver and hypothalamus after duodenal-jejunal bypass (DJB) surgery in rats. Methods: A total of 38 rats were randomly assigned to either sham group (n=8) or DJB group (n=30). DJB group was again divided into three groups according to the elapsed time after surgery (10 weeks, DJB10; 16 week, DJB16; 28 week, DJB28). The mRNA and protein expressions of SIRT1 and SIRT3 in the liver and hypothalamus were measured by reverse transcription polymerase chain reaction, Western blot, and immunohistochemistry analyses. NAD⁺/NADH ratio was also measured. Results: We found increased mRNA and protein expression levels of SIRT1 in the liver of DJB16 and DJB28 groups compared with those of sham group. The mRNA and protein expressions of SIRT3 in the liver of DJB group increased proportionally to the elapsed time after DJB surgery. The mRNA expression levels of SIRT1 in the hypothalamus increased in DJB16 and DJB28 groups and protein expression levels of SIRT1 in the hypothalamus increased in DJB10, DBJ16, and DJB28 groups compared with sham group. We observed that mRNA and protein levels of SIRT3 in the hypothalamus of DJB group were not changed. Conclusion: This study proves that DJB increases SIRT1 and SIRT3 expressions in the liver and SIRT1 expression in the hypothalamus. These results suggest the possibility of sirtuins being involved in bypass surgery-induced metabolic changes.https://doi.org/10.7570/jomes.2018.27.4.248Duodenojejunal bypassLife spanSirtuin1Sirtuin3 |
| spellingShingle | Eunyoung Ha Jong Yeon Kang Kyung Sik Park Youn Kyoung Seo Tae Kyung Ha Duodenal-Jejunal Bypass Surgery Stimulates the Expressions of Hepatic Sirtuin1 and 3 and Hypothalamic Sirtuin1 Journal of Obesity & Metabolic Syndrome Duodenojejunal bypass Life span Sirtuin1 Sirtuin3 |
| title | Duodenal-Jejunal Bypass Surgery Stimulates the Expressions of Hepatic Sirtuin1 and 3 and Hypothalamic Sirtuin1 |
| title_full | Duodenal-Jejunal Bypass Surgery Stimulates the Expressions of Hepatic Sirtuin1 and 3 and Hypothalamic Sirtuin1 |
| title_fullStr | Duodenal-Jejunal Bypass Surgery Stimulates the Expressions of Hepatic Sirtuin1 and 3 and Hypothalamic Sirtuin1 |
| title_full_unstemmed | Duodenal-Jejunal Bypass Surgery Stimulates the Expressions of Hepatic Sirtuin1 and 3 and Hypothalamic Sirtuin1 |
| title_short | Duodenal-Jejunal Bypass Surgery Stimulates the Expressions of Hepatic Sirtuin1 and 3 and Hypothalamic Sirtuin1 |
| title_sort | duodenal jejunal bypass surgery stimulates the expressions of hepatic sirtuin1 and 3 and hypothalamic sirtuin1 |
| topic | Duodenojejunal bypass Life span Sirtuin1 Sirtuin3 |
| url | https://doi.org/10.7570/jomes.2018.27.4.248 |
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