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Xu K, Liu Z, Pan S, Zhang N, Wu S, Yang G, Song X, Teng Y, Tong X. BMSCs attenuate radiation-induced brain injury induced hippocampal neuronal apoptosis through a PI3K/Akt/Bax/Bcl-2 signaling pathway. Brain Res 2024; 1829:148795. [PMID: 38331376 DOI: 10.1016/j.brainres.2024.148795] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2023] [Revised: 01/26/2024] [Accepted: 02/01/2024] [Indexed: 02/10/2024]
Abstract
BACKGROUND Bone marrow mesenchymal stem cell (BMSCs) -based therapies represent a promising treatment for neurological disorders. However, therapeutic effects and mechanisms of BMSCs transplantation for radiation-induced brain injury (RIBI) have not been fully disclosed. In this article, we explored the functions of BMSCs transplantation on RIBI and investigated the protective effects of BMSCS on hippocampal neurons in RIBI as well as the related molecular mechanisms. MATERIALS AND METHODS 6-8 weeks-old rats were used to build a RIBI model. Rats in BMSC group were treated with a 3 × 106 BMSCs injection through the tail vein on the 1st day and 8th day after irradiation; rats in both control and RIBI groups were injected with an equivalent volume of physiological saline for comparisons. The Morris water maze was applied to detect the variations in cognitive function after RIBI. MRS was performed to test changes in NAA/Cr, indicating neuronal apoptosis after RIBI. TUNEL was conducted to detect apoptosis of rat hippocampal neurons, and HE staining was carried out to show pathological variations in the hippocampal region of rats. Protein levels of PI3K, P-PI3K, AKT, P-AKT, Bcl-2, and Bax proteins of rats in the hippocampal area were all determined by Western blot. RESULTS Cognitive function was reduced and hippocampal neurons underwent apoptosis in the rats of the RIBI group, and cognitive abilities, histopathological alterations, and apoptosis of hippocampal neurons were significantly improved after BMSCs treatment; the expression of PI3K, P-PI3K, AKT, P-AKT, and Bcl-2 proteins, in the hippocampal region of the rat, was up-regulated, and Bax proteins were down-regulated. CONCLUSIONS BMCSs can inhibit hippocampal neuronal apoptosis in RIBI, and the mechanism may be associated with the up-regulation of Bcl-2 and down-regulation of Bax by the PI3K/AKT signaling pathway.
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Affiliation(s)
- Kaina Xu
- College of Medical Technology, Qiqihar Medical University, No.333 Bukui Street, Jianhua District, Qiqihar, Heilongjiang 161006, China
| | - Zhanhong Liu
- College of Medical Technology, Qiqihar Medical University, No.333 Bukui Street, Jianhua District, Qiqihar, Heilongjiang 161006, China
| | - Shichao Pan
- College of Medical Technology, Qiqihar Medical University, No.333 Bukui Street, Jianhua District, Qiqihar, Heilongjiang 161006, China
| | - Na Zhang
- College of Medical Technology, Qiqihar Medical University, No.333 Bukui Street, Jianhua District, Qiqihar, Heilongjiang 161006, China
| | - Shuang Wu
- Department of Radiotherapy, The Third Affiliated Hospital of Qiqihar Medical University, No.27, Taishun Street, Tiefeng District, Qiqihar, Heilongjiang 161006, China
| | - Guangrun Yang
- Department of Radiotherapy, The Third Affiliated Hospital of Qiqihar Medical University, No.27, Taishun Street, Tiefeng District, Qiqihar, Heilongjiang 161006, China
| | - Xue Song
- Department of Radiotherapy, The Third Affiliated Hospital of Qiqihar Medical University, No.27, Taishun Street, Tiefeng District, Qiqihar, Heilongjiang 161006, China
| | - Ye Teng
- Department of Radiotherapy, The Third Affiliated Hospital of Qiqihar Medical University, No.27, Taishun Street, Tiefeng District, Qiqihar, Heilongjiang 161006, China
| | - Xu Tong
- Department of Radiotherapy, The Third Affiliated Hospital of Qiqihar Medical University, No.27, Taishun Street, Tiefeng District, Qiqihar, Heilongjiang 161006, China.
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Zhang Y, Ren E, Zhang C, Wang Y, Chen X, Li L. The protective role of oily fish intake against type 2 diabetes: insights from a genetic correlation and Mendelian randomization study. Front Nutr 2024; 11:1288886. [PMID: 38567249 PMCID: PMC10986736 DOI: 10.3389/fnut.2024.1288886] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2023] [Accepted: 03/11/2024] [Indexed: 04/04/2024] Open
Abstract
Background and aims Previous research has underscored the association between oily fish intake and type 2 diabetes (T2DM), yet the causality remains elusive. Methods A bidirectional univariable Mendelian Randomization (MR) analysis was employed to evaluate the causal effects of oily fish and non-oily fish intake on T2DM. Replication analysis and meta-analysis were conducted to ensure robust results. Multivariable MR analysis was utilized to assess confounders, and further mediation MR analysis discerned mediating effects. Linkage Disequilibrium Score (LDSC) analysis was undertaken to compute genetic correlations. Inverse variance weighted (IVW) was the primary method, complemented by a series of sensitivity analyses. Results The LDSC analysis unveiled a significant genetic correlation between oily fish intake and T2DM (Genetic correlation: -0.102, p = 4.43 × 10-4). For each standard deviation (SD) increase in genetically predicted oily fish intake, the risk of T2DM was reduced by 38.6% (OR = 0.614, 95% CI 0.504 ~ 0.748, p = 1.24 × 10-6, False Discovery Rate (FDR) = 3.72 × 10-6). The meta-analysis across three data sources highlighted a persistent causal association (OR = 0.728, 95% CI 0.593 ~ 0.895, p = 0.003). No other causal effects were identified (all p > 0.5, FDR > 0.5). The main outcomes remained consistent in most sensitivity analyses. Both MVMR and mediation MR analyses emphasized the mediating roles of triglycerides (TG), body mass index (BMI), and 25-hydroxyvitamin D (25OHD) levels. Conclusion To encapsulate, there's an inverse association between oily fish intake and T2DM risk, suggesting potential benefits of oily fish intake in T2DM prevention.
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Affiliation(s)
- Youqian Zhang
- Department of Endocrinology, The First Affiliated Hospital of Yangtze University, Jingzhou, Hubei, China
- Health Science Center, Yangtze University, Jingzhou, Hubei, China
| | - Entong Ren
- Health Science Center, Yangtze University, Jingzhou, Hubei, China
- Southern Theater General Hospital, Guangzhou, Guangdong, China
| | - Chunlong Zhang
- Health Science Center, Yangtze University, Jingzhou, Hubei, China
- Department of Nursing, Renmin Hospital of Wuhan University, Wuhan, Hubei, China
| | - Yang Wang
- Department of Neurology, The Second Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Xiaohe Chen
- Health Science Center, Yangtze University, Jingzhou, Hubei, China
| | - Lin Li
- Department of Endocrinology, The First Affiliated Hospital of Yangtze University, Jingzhou, Hubei, China
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Zhong K, Liu K, Song Y, Chen S, Hu X, Xue R, Ma X, Li S, Yang J, Deng Z, Zhu X, Yuan M, Huang Y, Yin W, Chen Y, Tang Y, Shi Z. A Synthetic Steroid 5α-Androst-3β, 5, 6β-triol Alleviates Radiation-Induced Brain Injury in Mice via Inhibiting GBP5/NF-κB/NLRP3 Signal Axis. Mol Neurobiol 2023:10.1007/s12035-023-03831-9. [PMID: 38057643 DOI: 10.1007/s12035-023-03831-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2023] [Accepted: 11/25/2023] [Indexed: 12/08/2023]
Abstract
Radiotherapy for head and neck tumors can lead to a severe complication known as radiation-induced brain injury (RIBI). However, the underlying mechanism of RIBI development remains unclear, and limited prevention and treatment options are available. Neuroactive steroids have shown potential in treating neurological disorders. 5α-Androst-3β, 5, 6β-triol (TRIOL), a synthetic neuroprotective steroid, holds promise as a treatment candidate for RIBI patients. However, the neuroprotective effects and underlying mechanism of TRIOL on RIBI treatment are yet to be elucidated. In the present study, our findings demonstrate TRIOL's potential as a neuroprotective agent against RIBI. In gamma knife irradiation mouse model, TRIOL treatment significantly reduced brain necrosis volume, microglial activation, and neuronal loss. RNA-sequencing, immunofluorescence, real-time quantitative polymerase chain reaction, siRNA transfection, and western blotting techniques revealed that TRIOL effectively decreased microglial activation, proinflammatory cytokine release, neuron loss, and guanylate-binding protein 5 (GBP5) expression, along with its downstream signaling pathways NF-κB and NLRP3 activation in vitro. In summary, TRIOL effectively alleviate RIBI by inhibiting the GBP5/NF-κB/NLRP3 signal axis, reducing microglia activation and pro-inflammation cytokines release, rescuing neuron loss. This study highlights the potential of TRIOL as a novel and promising therapy drug for RIBI treatment.
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Affiliation(s)
- Ke Zhong
- Department of Neurology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, 510120, China
- Department of Pharmacy, Sun-Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, 510120, China
| | - Kejia Liu
- Department of Neurology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, 510120, China
| | - Yu Song
- Department of Neurology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, 510120, China
| | - Sitai Chen
- Department of Neurology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, 510120, China
| | - Xia Hu
- Department of Neurology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, 510120, China
| | - Ruiqi Xue
- Department of Neurology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, 510120, China
| | - Xueying Ma
- Department of Neurology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, 510120, China
| | - Shaojian Li
- Department of Neurology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, 510120, China
| | - Jingwen Yang
- Department of Neurology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, 510120, China
| | - Zhenhong Deng
- Department of Neurology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, 510120, China
| | - Xiaoqiu Zhu
- Department of Neurology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, 510120, China
| | - Mingjun Yuan
- Guangzhou Cellprotek Pharmaceutical Co., Ltd., H Building F/1, 3 Juquan Road, Science City, Guangzhou, 510670, China
| | - Yijun Huang
- Guangzhou Cellprotek Pharmaceutical Co., Ltd., H Building F/1, 3 Juquan Road, Science City, Guangzhou, 510670, China
| | - Wei Yin
- Guangzhou Cellprotek Pharmaceutical Co., Ltd., H Building F/1, 3 Juquan Road, Science City, Guangzhou, 510670, China
| | - Yupin Chen
- Guangzhou Cellprotek Pharmaceutical Co., Ltd., H Building F/1, 3 Juquan Road, Science City, Guangzhou, 510670, China.
| | - Yamei Tang
- Department of Neurology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, 510120, China.
- Brain Research Center, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, 510120, China.
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Guangdong-Hong Kong Joint Laboratory for RNA Medicine, Medical Research Center, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, 510120, China.
- Guangdong Province Key Laboratory of Brain Function and Disease, Zhongshan School of Medicine, Sun Yat-Sen University, Guangzhou, 510080, China.
| | - Zhongshan Shi
- Department of Neurology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, 510120, China.
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Long H, Zhao L, Xiao ZS, Li SX, Huang QL, Xiao S, Wu LL. Impact of bariatric surgery on glucose and lipid metabolism and liver and kidney function in food-induced obese diabetic rats. World J Diabetes 2023; 14:1249-1258. [PMID: 37664479 PMCID: PMC10473948 DOI: 10.4239/wjd.v14.i8.1249] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/21/2023] [Revised: 06/30/2023] [Accepted: 07/17/2023] [Indexed: 08/11/2023] Open
Abstract
BACKGROUND Obesity usually causes diabetes mellitus (DM) and is a serious danger to human health. Type 2 DM (T2DM) mostly occurs along with obesity. Foodborne obesity-induced DM is caused by an excessive long-term diet and surplus energy. Bariatric surgery can improve the symptoms of T2DM in some obese patients. But different types of bariatric surgery may have different effects. AIM To investigate the effect of bariatric surgery on glucose and lipid metabolism and liver and kidney function in rats. METHODS Male Sprague-Dawley rats aged 6-8 wk underwent Roux-en-Y gastric bypass surgery (RYGB), sleeve gastrectomy (SG), or gastric banding (GB). Glucose and insulin tolerance tests, analyses of biochemical parameters, histological examination, western blot, and quantitative real-time polymerase chain reaction were conducted. RESULTS In comparison to the sham operation group, the RYGB, SG, and GB groups had decreased body weight and food intake, reduced glucose intolerance and insulin insensitivity, downregulated biochemical parameters, alleviated morphological changes in the liver and kidneys, and decreased levels of protein kinase C β/ P66shc. The effect in the RYGB group was better than that in the SG and GB groups. CONCLUSION These results suggest that RYGB, SG and GB may be helpful for the treatment of foodborne obesity-induced DM.
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Affiliation(s)
- Hong Long
- Department of Gastrointestinal Surgery, The First Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang 421001, Hunan Province, China
| | - Lei Zhao
- Department of Gastrointestinal Surgery, The First Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang 421001, Hunan Province, China
| | - Zhong-Sheng Xiao
- Department of Gastrointestinal Surgery, The First Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang 421001, Hunan Province, China
| | - Shu-Xiang Li
- Department of Gastrointestinal Surgery, The First Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang 421001, Hunan Province, China
| | - Qiu-Lin Huang
- Department of Gastrointestinal Surgery, The First Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang 421001, Hunan Province, China
| | - Shuai Xiao
- Department of Gastrointestinal Surgery, The First Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang 421001, Hunan Province, China
| | - Liang-Liang Wu
- Department of Gastrointestinal Surgery, The First Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang 421001, Hunan Province, China
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