Linking renal hypoxia and oxidative stress in chronic kidney disease: Based on clinical subjects and animal models
This study aims to explore the relationships between renal function, hypoxia, and oxidative stress in chronic kidney disease (CKD). Seventy-six non-dialysis patients with CKD stages 1-5 and eight healthy subjects were included in the clinical research. They were divided into three groups: healthy s...
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| Format: | Article |
| Language: | English |
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Association of Basic Medical Sciences of Federation of Bosnia and Herzegovina
2024-03-01
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| Series: | Biomolecules & Biomedicine |
| Subjects: | |
| Online Access: | https://www.bjbms.org/ojs/index.php/bjbms/article/view/10257 |
| _version_ | 1797228770308915200 |
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| author | Yizeng Xu Fang Lu Meng Wang Lingchen Wang Chaoyang Ye Shuohui Yang Chen Wang |
| author_facet | Yizeng Xu Fang Lu Meng Wang Lingchen Wang Chaoyang Ye Shuohui Yang Chen Wang |
| author_sort | Yizeng Xu |
| collection | DOAJ |
| description |
This study aims to explore the relationships between renal function, hypoxia, and oxidative stress in chronic kidney disease (CKD). Seventy-six non-dialysis patients with CKD stages 1-5 and eight healthy subjects were included in the clinical research. They were divided into three groups: healthy subjects, CKD stages 1-3, and CKD stages 4-5. In the animal study, 16 rat models of CKD were established through 5/6 renal ablation/infarction (A/I) surgery, and 8 normal rats were split into 3 groups: Sham, CKD, and losartan groups. Blood oxygenation level-dependent magnetic resonance imaging (BOLD-MRI) was used to measure cortical and medullary T2* values (COT2* and MET2*) in all subjects and rats to evaluate renal oxygenation. Biochemical indicators were used to assess renal function and antioxidant capacity. Furthermore, the effects of losartan on renal fibrosis, hypoxia, and oxidative stress were examined using immunoblotting, colorimetric, and fluorometric assays. The results demonstrated significant positive associations between COT2* and MET2* with estimated glomerular filtration rate (eGFR). Patients with CKD stages 4-5 showed significantly lower serum superoxide dismutase (SOD) levels, which also had positive correlations with eGFR, COT2*, and MET2*. Furthermore, losartan treatment resulted in improved renal function and fibrosis, leading to increased levels of COT2*, MET2*, and SOD levels in 5/6 A/I rats. This was accompanied by reduced levels of hypoxia-inducible factor-1 alpha (HIF-1α) and malondialdehyde. Furthermore, losartan restored the expression of nuclear factor erythroid 2-related factor 2 (Nrf2) and heme oxygenase-1 (HO-1), and suppressed the expression of Kelch-like ECH-associated protein 1 (Keap1) in 5/6 A/I kidneys. The study indicates that decline in renal oxygenation and antioxidant capacity is associated with the severity of renal failure in CKD. Losartan can potentially alleviate renal hypoxia and oxidative stress in the treatment of CKD via Keap1-Nrf2/HO-1 pathway.
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| first_indexed | 2024-04-24T15:01:58Z |
| format | Article |
| id | doaj.art-5b2c593e9e284ea293b4e963c416a535 |
| institution | Directory Open Access Journal |
| issn | 2831-0896 2831-090X |
| language | English |
| last_indexed | 2024-04-24T15:01:58Z |
| publishDate | 2024-03-01 |
| publisher | Association of Basic Medical Sciences of Federation of Bosnia and Herzegovina |
| record_format | Article |
| series | Biomolecules & Biomedicine |
| spelling | doaj.art-5b2c593e9e284ea293b4e963c416a5352024-04-02T14:48:50ZengAssociation of Basic Medical Sciences of Federation of Bosnia and HerzegovinaBiomolecules & Biomedicine2831-08962831-090X2024-03-0110.17305/bb.2024.10257Linking renal hypoxia and oxidative stress in chronic kidney disease: Based on clinical subjects and animal modelsYizeng Xu0https://orcid.org/0000-0001-6612-9470Fang Lu1Meng Wang2Lingchen Wang3Chaoyang Ye4Shuohui Yang5https://orcid.org/0000-0002-2866-9529Chen Wang6Department of Nephrology, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, China; Key Laboratory of Liver and Kidney Diseases, Ministry of Education, Shanghai University of Traditional Chinese Medicine, Shanghai, China; TCM Institute of Kidney Disease, Shanghai University of Traditional Chinese Medicine, Shanghai, China; Shanghai Key Laboratory of Traditional Chinese Clinical Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, ChinaDepartment of Radiology, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, ChinaDepartment of Nephrology, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, China; Key Laboratory of Liver and Kidney Diseases, Ministry of Education, Shanghai University of Traditional Chinese Medicine, Shanghai, China; TCM Institute of Kidney Disease, Shanghai University of Traditional Chinese Medicine, Shanghai, China; Shanghai Key Laboratory of Traditional Chinese Clinical Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, ChinaDepartment of Nephrology, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, China; Key Laboratory of Liver and Kidney Diseases, Ministry of Education, Shanghai University of Traditional Chinese Medicine, Shanghai, China; TCM Institute of Kidney Disease, Shanghai University of Traditional Chinese Medicine, Shanghai, China; Shanghai Key Laboratory of Traditional Chinese Clinical Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, ChinaDepartment of Nephrology, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, China; Key Laboratory of Liver and Kidney Diseases, Ministry of Education, Shanghai University of Traditional Chinese Medicine, Shanghai, China; TCM Institute of Kidney Disease, Shanghai University of Traditional Chinese Medicine, Shanghai, China; Shanghai Key Laboratory of Traditional Chinese Clinical Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, ChinaDepartment of Radiology, Shanghai Municipal Hospital of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, ChinaDepartment of Nephrology, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, China; Key Laboratory of Liver and Kidney Diseases, Ministry of Education, Shanghai University of Traditional Chinese Medicine, Shanghai, China; TCM Institute of Kidney Disease, Shanghai University of Traditional Chinese Medicine, Shanghai, China; Shanghai Key Laboratory of Traditional Chinese Clinical Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China This study aims to explore the relationships between renal function, hypoxia, and oxidative stress in chronic kidney disease (CKD). Seventy-six non-dialysis patients with CKD stages 1-5 and eight healthy subjects were included in the clinical research. They were divided into three groups: healthy subjects, CKD stages 1-3, and CKD stages 4-5. In the animal study, 16 rat models of CKD were established through 5/6 renal ablation/infarction (A/I) surgery, and 8 normal rats were split into 3 groups: Sham, CKD, and losartan groups. Blood oxygenation level-dependent magnetic resonance imaging (BOLD-MRI) was used to measure cortical and medullary T2* values (COT2* and MET2*) in all subjects and rats to evaluate renal oxygenation. Biochemical indicators were used to assess renal function and antioxidant capacity. Furthermore, the effects of losartan on renal fibrosis, hypoxia, and oxidative stress were examined using immunoblotting, colorimetric, and fluorometric assays. The results demonstrated significant positive associations between COT2* and MET2* with estimated glomerular filtration rate (eGFR). Patients with CKD stages 4-5 showed significantly lower serum superoxide dismutase (SOD) levels, which also had positive correlations with eGFR, COT2*, and MET2*. Furthermore, losartan treatment resulted in improved renal function and fibrosis, leading to increased levels of COT2*, MET2*, and SOD levels in 5/6 A/I rats. This was accompanied by reduced levels of hypoxia-inducible factor-1 alpha (HIF-1α) and malondialdehyde. Furthermore, losartan restored the expression of nuclear factor erythroid 2-related factor 2 (Nrf2) and heme oxygenase-1 (HO-1), and suppressed the expression of Kelch-like ECH-associated protein 1 (Keap1) in 5/6 A/I kidneys. The study indicates that decline in renal oxygenation and antioxidant capacity is associated with the severity of renal failure in CKD. Losartan can potentially alleviate renal hypoxia and oxidative stress in the treatment of CKD via Keap1-Nrf2/HO-1 pathway. https://www.bjbms.org/ojs/index.php/bjbms/article/view/10257Renal hypoxiaoxidative stresschronic kidney diseaseblood oxygenation level-dependent magnetic resonance imaging |
| spellingShingle | Yizeng Xu Fang Lu Meng Wang Lingchen Wang Chaoyang Ye Shuohui Yang Chen Wang Linking renal hypoxia and oxidative stress in chronic kidney disease: Based on clinical subjects and animal models Biomolecules & Biomedicine Renal hypoxia oxidative stress chronic kidney disease blood oxygenation level-dependent magnetic resonance imaging |
| title | Linking renal hypoxia and oxidative stress in chronic kidney disease: Based on clinical subjects and animal models |
| title_full | Linking renal hypoxia and oxidative stress in chronic kidney disease: Based on clinical subjects and animal models |
| title_fullStr | Linking renal hypoxia and oxidative stress in chronic kidney disease: Based on clinical subjects and animal models |
| title_full_unstemmed | Linking renal hypoxia and oxidative stress in chronic kidney disease: Based on clinical subjects and animal models |
| title_short | Linking renal hypoxia and oxidative stress in chronic kidney disease: Based on clinical subjects and animal models |
| title_sort | linking renal hypoxia and oxidative stress in chronic kidney disease based on clinical subjects and animal models |
| topic | Renal hypoxia oxidative stress chronic kidney disease blood oxygenation level-dependent magnetic resonance imaging |
| url | https://www.bjbms.org/ojs/index.php/bjbms/article/view/10257 |
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