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Ran F, Wang S, Nie X, Xiao T, Yang C, Liu Y, Li Z. Driver-response relationships in a large shallow lake since the Anthropocene: Short-term abrupt perturbations versus long-term sustainable. Glob Chang Biol 2024; 30:e17267. [PMID: 38563471 DOI: 10.1111/gcb.17267] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/23/2023] [Revised: 03/16/2024] [Accepted: 03/18/2024] [Indexed: 04/04/2024]
Abstract
Lakes, as integral social-ecological systems, are hotspots for exploring climatic and anthropogenic impacts, with crucial pathways revealed by continuous sediment records. However, the response of multi-proxies in large shallow lakes to typical abrupt events and sustained drivers since the Anthropocene remains unclear. Here, we explored the driver-identification relationships between multi-proxy peaks and natural and anthropogenic events as well as the attribution of short-term perturbations and long-term pressures. To this end, sediment core records, socio-ecological data, and documented events from official records were integrated into a large shallow lake (Dongting Lake, China). Significant causal cascades and path effects (goodness-of-fit: 0.488; total effect: -1.10; p < .001) were observed among catchment environmental proxies, lake biogenic proxies, and mixed-source proxies. The peak-event identification rate (PEIR) and event-peak driving rate were proposed, and values of 28.57%-46.43% and 50%-81.25% were obtained, respectively. The incomplete accuracy of depicting event perturbations using sediment proxies was caused by various information filters both inside and outside the lake. PEIRs for compound events were 1.41 (±0.72) and 1.09 (±0.46) times greater than those for anthropogenic-dominated and natural-dominated events, respectively. Furthermore, socio-economic activity, hydrologic dynamics, land-use changes, and agriculture exerted significant and persistent pressures, cumulatively contributing 55.3%-80.9% to alterations in sediment proxies. Relatively synergistic or antagonistic trends in temporal contributions of these forces were observed after 2000, which were primarily attributed to the "Grain for Green" project and the Three Gorges Dam. This study represents one of the few investigations to distinguish the driver-response relationship of multiple proxies in large shallow lakes under typical event perturbations and long-term sustained pressures since the Anthropocene. The findings will help policymakers and managers address ecological perturbations triggered by climate change and human activities over long-term periods.
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Affiliation(s)
- Fengwei Ran
- School of Geographic Sciences, Hunan Normal University, Changsha, P.R. China
- Hunan Provincial Key Laboratory for Eco-Environmental Changes and Carbon Sequestration of the Dongting Lake Basin, Changsha, P.R. China
| | - Shilan Wang
- School of Geographic Sciences, Hunan Normal University, Changsha, P.R. China
- Hunan Provincial Key Laboratory for Eco-Environmental Changes and Carbon Sequestration of the Dongting Lake Basin, Changsha, P.R. China
| | - Xiaodong Nie
- School of Geographic Sciences, Hunan Normal University, Changsha, P.R. China
- Hunan Provincial Key Laboratory for Eco-Environmental Changes and Carbon Sequestration of the Dongting Lake Basin, Changsha, P.R. China
- Institute of Interdisciplinary Studies, Hunan Normal University, Changsha, P.R. China
| | - Tao Xiao
- School of Geographic Sciences, Hunan Normal University, Changsha, P.R. China
- Hunan Provincial Key Laboratory for Eco-Environmental Changes and Carbon Sequestration of the Dongting Lake Basin, Changsha, P.R. China
| | - Changrong Yang
- School of Geographic Sciences, Hunan Normal University, Changsha, P.R. China
- Hunan Provincial Key Laboratory for Eco-Environmental Changes and Carbon Sequestration of the Dongting Lake Basin, Changsha, P.R. China
| | - Yaojun Liu
- School of Geographic Sciences, Hunan Normal University, Changsha, P.R. China
- Hunan Provincial Key Laboratory for Eco-Environmental Changes and Carbon Sequestration of the Dongting Lake Basin, Changsha, P.R. China
- Institute of Interdisciplinary Studies, Hunan Normal University, Changsha, P.R. China
| | - Zhongwu Li
- School of Geographic Sciences, Hunan Normal University, Changsha, P.R. China
- Hunan Provincial Key Laboratory for Eco-Environmental Changes and Carbon Sequestration of the Dongting Lake Basin, Changsha, P.R. China
- Institute of Interdisciplinary Studies, Hunan Normal University, Changsha, P.R. China
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Peng C, Wang Y, Hu Z, Chen C. Selective HDAC6 inhibition protects against blood-brain barrier dysfunction after intracerebral hemorrhage. CNS Neurosci Ther 2024; 30:e14429. [PMID: 37665135 PMCID: PMC10915991 DOI: 10.1111/cns.14429] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2023] [Revised: 06/30/2023] [Accepted: 08/16/2023] [Indexed: 09/05/2023] Open
Abstract
BACKGROUNDS Blood-brain barrier (BBB) disruption after intracerebral hemorrhage (ICH) significantly induces neurological impairment. Previous studies showed that HDAC6 knockdown or TubA can protect the TNF-induced endothelial dysfunction. However, the role of HDAC6 inhibition on ICH-induced BBB disruption remains unknown. METHODS Hemin-induced human brain microvascular endothelial cells (HBMECs) and collagenase-induced rats were employed to investigated the underlying impact of the HDAC6 inhibition in BBB lesion and neuronal dysfunction after ICH. RESULTS We found a significant decrease in acetylated α-tubulin during early phase of ICH. Both 25 or 40 mg/kg of TubA could relieve neurological deficits, perihematomal cell apoptosis, and ipsilateral brain edema in ICH animal model. TubA or specific siRNA of HDAC6 inhibited apoptosis and reduced the endothelial permeability of HBMECs. HDAC6 inhibition rescued the degradation of TJ proteins and repaired TJs collapses after ICH induction. Finally, the results suggested that the protective effects on BBB after ICH induction were exerted via upregulating the acetylated α-tubulin and reducing stress fiber formation. CONCLUSIONS Inhibition of HDAC6 expression showed beneficial effects against BBB disruption after experimental ICH, which suggested that HDAC6 could be a novel and promising target for ICH treatment.
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Affiliation(s)
- Cuiying Peng
- Department of Neurology, Second Xiangya HospitalCentral South UniversityChangshaHunanChina
- Department of Neurology, Hunan Provincial Rehabilitation HospitalHunan University of MedicineChangshaHunanChina
| | - Yilin Wang
- Department of Neurology, Second Xiangya HospitalCentral South UniversityChangshaHunanChina
| | - Zhiping Hu
- Department of Neurology, Second Xiangya HospitalCentral South UniversityChangshaHunanChina
| | - Chunli Chen
- Department of Neurology, Second Xiangya HospitalCentral South UniversityChangshaHunanChina
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Wang PF, Jiang F, Zeng QM, Yin WF, Hu YZ, Li Q, Hu ZL. Mitochondrial and metabolic dysfunction of peripheral immune cells in multiple sclerosis. J Neuroinflammation 2024; 21:28. [PMID: 38243312 PMCID: PMC10799425 DOI: 10.1186/s12974-024-03016-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2023] [Accepted: 01/08/2024] [Indexed: 01/21/2024] Open
Abstract
Multiple sclerosis (MS) is a chronic autoimmune disorder characterized by the infiltration of inflammatory cells and demyelination of nerves. Mitochondrial dysfunction has been implicated in the pathogenesis of MS, as studies have shown abnormalities in mitochondrial activities, metabolism, mitochondrial DNA (mtDNA) levels, and mitochondrial morphology in immune cells of individuals with MS. The presence of mitochondrial dysfunctions in immune cells contributes to immunological dysregulation and neurodegeneration in MS. This review provided a comprehensive overview of mitochondrial dysfunction in immune cells associated with MS, focusing on the potential consequences of mitochondrial metabolic reprogramming on immune function. Current challenges and future directions in the field of immune-metabolic MS and its potential as a therapeutic target were also discussed.
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Affiliation(s)
- Peng-Fei Wang
- Department of Anesthesiology, The Second Xiangya Hospital, Central South University, 139 Ren-Min Central Road, Changsha City, 410011, Hunan, China
| | - Fei Jiang
- Department of Neurology, Xiangya Hospital, Central South University, Changsha City, 410011, Hunan, China
| | - Qiu-Ming Zeng
- Department of Neurology, Xiangya Hospital, Central South University, Changsha City, 410011, Hunan, China
| | - Wei-Fan Yin
- Department of Neurology, The Second Xiangya Hospital, Central South University, 139 Ren-Min Central Road, Changsha City, 410011, Hunan, China
| | - Yue-Zi Hu
- Clinical Laboratory, The Second Hospital of Hunan University of Chinese Medicine, 233 Cai' e North Road, Changsha City, 410005, Hunan, China
| | - Qiao Li
- Department of Anesthesiology, The Second Xiangya Hospital, Central South University, 139 Ren-Min Central Road, Changsha City, 410011, Hunan, China
| | - Zhao-Lan Hu
- Department of Anesthesiology, The Second Xiangya Hospital, Central South University, 139 Ren-Min Central Road, Changsha City, 410011, Hunan, China.
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Wu S, Liu L, Tao T, Xiao J, Yang H, Yu X, Chen J, Tan Z, Wu P. circPTK2 promotes proliferation, migration and invasion of trophoblast cells through the miR-619/WNT7B pathway in preeclampsia. Mol Cell Biochem 2023; 478:2621-2627. [PMID: 36913151 DOI: 10.1007/s11010-023-04688-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2022] [Accepted: 02/23/2023] [Indexed: 03/14/2023]
Abstract
It has been shown that the circular RNA (circRNA) circPTK2 modulates many types of diseases. However, the possible functions as well as the molecular mechanisms of circPTK2 in preeclampsia (PE) and their effects on trophoblast are unknown. Herein, we obtained the placental tissues from 20 pregnant women with PE who delivered in the Yueyang Maternal Child Medicine Health Hospital between 2019 and 2021 to serve as the PE group, and a normal group was composed of 20 healthy pregnant women with normal prenatal examinations. The circPTK2 level was significantly reduced in tissues from the PE group. The expression and localization of circPTK2 were verified using RT-qPCR. CircPTK2 silencing inhibited HTR-8/SVneo growth and migration in vitro. To investigate the underlying mechanism of circPTK2 in PE progression, dual-luciferase reporter assays were conducted. It was found that circPTK2 and WNT7B could bind directly to miR-619, and that circPTK2 affected WNT7B expression by sponging miR-619. To conclude, this study identified the functions and mechanisms of the circPTK2/miR-619/WNT7B axis in PE progression. In this way, circPTK2 has the potential to be used both in diagnostic and therapeutic settings for PE.
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Affiliation(s)
- Shiyuan Wu
- Scientific Research Institute, Yueyang Maternal-Child Medicine Health Hospital, Yueyang, China
| | - Lingyan Liu
- Hengyang Maternal and Child Health Hospital, Hengyang, China
| | - Ting Tao
- Scientific Research Institute, Yueyang Maternal-Child Medicine Health Hospital, Yueyang, China
| | - Jingyan Xiao
- Scientific Research Institute, Yueyang Maternal-Child Medicine Health Hospital, Yueyang, China
| | - Huizhi Yang
- Department of Gynaecology and Obstetrics, the Air Force Hospital of Southern Theater Command, Guangzhou, China
| | - Xiaoshan Yu
- Department of Gynaecology and Obstetrics, the Air Force Hospital of Southern Theater Command, Guangzhou, China
| | - Jun Chen
- Hengyang Maternal and Child Health Hospital, Hengyang, China
| | - Zhiqin Tan
- Department of Gynaecology and Obstetrics, the Air Force Hospital of Southern Theater Command, Guangzhou, China.
| | - Peng Wu
- Scientific Research Institute, Yueyang Maternal-Child Medicine Health Hospital, Yueyang, China.
- Hengyang Maternal and Child Health Hospital, Hengyang, China.
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Song G, Wei W, Shuai B, Liu B, Chen Y. Investigation of the Dislocation Density of NiCr Coatings Prepared Using PVD-LMM Technology. Materials (Basel) 2023; 16:7234. [PMID: 38005163 PMCID: PMC10672866 DOI: 10.3390/ma16227234] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/27/2023] [Revised: 11/14/2023] [Accepted: 11/14/2023] [Indexed: 11/26/2023]
Abstract
Micron-sized coatings prepared using physical vapor deposition (PVD) technology can peel off in extreme environments because of their low adhesion. Laser micro-melting (LMM) technology can improve the properties of the fabricated integrated material due to its metallurgical combinations. However, the microstructural changes induced by the high-energy laser beam during the LMM process have not been investigated. In this study, we used the PVD-LMM technique to prepare NiCr coatings with a controlled thickness. The microstructural changes in the NiCr alloy coatings during melting and cooling crystallization were analyzed using molecular dynamics simulations. The simulation results demonstrated that the transition range of the atoms in the LMM process fluctuated synchronously with the temperature, and the hexagonal close-packed (HCP) structure increased. After the cooling crystallization, the perfect dislocations of the face-centered cubic (FCC) structure decreased significantly. The dislocation lines were mainly 1/6 <112> imperfect dislocations, and the dislocation density increased by 107.7%. The dislocations in the twinning region were affected by the twin boundaries and slip surfaces. They were plugged in their vicinity, resulting in a considerably higher dislocation density than in the other regions, and the material hardness increased significantly. This new technique may be important for the technological improvement of protective coatings on Zr alloy surfaces.
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Affiliation(s)
| | | | | | | | - Yong Chen
- College of Mechanical Engineering, University of South China, Hengyang 421101, China; (G.S.); (B.S.)
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Liu L, Luo H, Sheng Y, Kang X, Peng H, Luo H, Fan LL. A novel mutation of CTC1 leads to telomere shortening in a chinese family with interstitial lung disease. Hereditas 2023; 160:37. [PMID: 37978541 PMCID: PMC10656953 DOI: 10.1186/s41065-023-00299-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Accepted: 09/25/2023] [Indexed: 11/19/2023] Open
Abstract
Interstitial lung diseases (ILDs), or diffuse pulmonary lung disease, are a subset of lung diseases that primarily affect lung alveoli and the space around interstitial tissue and bronchioles. It clinically manifests as progressive dyspnea, and patients often exhibit a varied decrease in pulmonary diffusion function. Recently, variants in telomere biology-related genes have been identified as genetic lesions of ILDs. Here, we enrolled 82 patients with interstitial pneumonia from 2017 to 2021 in our hospital to explore the candidate gene mutations of these patients via whole-exome sequencing. After data filtering, a novel heterozygous mutation (NM_025099: p.Gly131Arg) of CTC1 was identified in two affected family members. As a component of CST (CTC1-STN1-TEN1) complex, CTC1 is responsible for maintaining telomeric structure integrity and has also been identified as a candidate gene for IPF, a special kind of chronic ILD with insidious onset. Simultaneously, real-time PCR revealed that two affected family members presented with short telomere lengths, which further confirmed the effect of the mutation in the CTC1 gene. Our study not only expanded the mutation spectrum of CTC1 and provided epidemiological data on ILDs caused by CTC1 mutations but also further confirmed the relationship between heterozygous mutations in CTC1 and ILDs, which may further contribute to understanding the mechanisms underlying ILDs.
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Affiliation(s)
- Lv Liu
- Department of Pulmonary and Critical Care Medicine, Research Unit of Respiratory Disease, Hunan Diagnosis and Treatment Center of Respiratory Disease, the Second Xiangya Hospital, Central South University, Changsha, China
- Department of Cell biology, School of Life Science, Central South University, Changsha, China
| | - Hua Luo
- Department of Cardio-Thoracic Surgery, Changsha Medical School, the Affiliated Changsha Central Hospital, University of South China, Changsha, China
| | - Yue Sheng
- Department of Cell biology, School of Life Science, Central South University, Changsha, China
| | - Xi Kang
- Department of Pulmonary and Critical Care Medicine, Research Unit of Respiratory Disease, Hunan Diagnosis and Treatment Center of Respiratory Disease, the Second Xiangya Hospital, Central South University, Changsha, China
| | - Hong Peng
- Department of Pulmonary and Critical Care Medicine, Research Unit of Respiratory Disease, Hunan Diagnosis and Treatment Center of Respiratory Disease, the Second Xiangya Hospital, Central South University, Changsha, China
| | - Hong Luo
- Department of Pulmonary and Critical Care Medicine, Research Unit of Respiratory Disease, Hunan Diagnosis and Treatment Center of Respiratory Disease, the Second Xiangya Hospital, Central South University, Changsha, China.
| | - Liang-Liang Fan
- Department of Cell biology, School of Life Science, Central South University, Changsha, China.
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Zeng X, Hu L, Ai Q, Liu CJ, Xiong LX, Yang WW, Zhang X, Liu L, Li GQ. Helicobacter macacae MazF interplays with Escherichia coli homologs and enhances antibiotic tolerance. Helicobacter 2023; 28:e13014. [PMID: 37559199 DOI: 10.1111/hel.13014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Revised: 07/17/2023] [Accepted: 07/31/2023] [Indexed: 08/11/2023]
Abstract
BACKGROUND Toxin-antitoxin systems are highly variable, even among strains of the same bacterial species. The MazEF toxin-antitoxin system is found in many bacteria and plays important roles in various biological processes such as antibiotic tolerance and phage defense. However, no interplay of MazEF systems between different species was reported. MATERIALS AND METHODS MazEF toxin-antitoxin system of Helicobacter macacae was examined in three Escherichia coli strains with and without endogenous MazEF knockout. In vivo toxicity, antibiotic tolerance, and live/dead staining followed by flowcytometry analysis were performed to evaluate the functionality and interplay of the toxin-antitoxin system between the two species. RESULTS Controlled ectopic expression of MazF of H. macacae (MazFhm) in E. coli did not affect its growth. However, in endogenous MazEF knockout E. coli strains, MazFhm expression caused a sharp growth arrest. The toxicity of MazFhm could be neutralized by both the antitoxin of MazE homolog of H.macacae and the antitoxin of MazE of E. coli, indicating interplay of MazEF toxin-antitoxin systems between the two species. Induced expression of MazFhm enhanced tolerance to a lethal dose of levofloxacin, suggesting enhanced persister formation, which was further confirmed by live/dead cell staining. CONCLUSIONS The MazEF toxin-antitoxin system of H. macace enhances persister formation and thus antibiotic tolerance in E. coli. Our findings reveal an interplay between the MazEF systems of H. macacae and E. coli, emphasizing the need to consider this interaction while evaluating the toxicity and functionality of MazF homologs from different species in future studies.
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Affiliation(s)
- Xi Zeng
- Department of Gastroenterology, The Second Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang, China
- Department of Gastroenterology, The First Affiliated Hospital of Shaoyang University, Shaoyang, China
| | - Limiao Hu
- Department of Gastroenterology, The Second Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang, China
| | - Qi Ai
- Department of Gastroenterology, The Second Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang, China
| | - Cai-Juan Liu
- Department of Gastroenterology, The Second Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang, China
| | - Lu-Xi Xiong
- Department of Gastroenterology, The Second Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang, China
| | - Wei-Wei Yang
- Department of Gastroenterology, The Second Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang, China
| | - Xiaotuan Zhang
- Department of Clinical Laboratory, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Logen Liu
- Clinical Research Center, The Second Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang, China
- Hunan Provincial Key Laboratory of Basic and Clinical Pharmacological Research on Gastrointestinal Tumors, University of South China, Hengyang, China
| | - Guo-Qing Li
- Department of Gastroenterology, The Second Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang, China
- Hunan Provincial Key Laboratory of Basic and Clinical Pharmacological Research on Gastrointestinal Tumors, University of South China, Hengyang, China
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Li Z, Wang X, Peng Y, Yin H, Yu S, Zhang W, Ni X. Nlrp3 Deficiency Alleviates Lipopolysaccharide-Induced Acute Kidney Injury via Suppressing Renal Inflammation and Ferroptosis in Mice. Biology (Basel) 2023; 12:1188. [PMID: 37759588 PMCID: PMC10525768 DOI: 10.3390/biology12091188] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/09/2023] [Revised: 08/19/2023] [Accepted: 08/20/2023] [Indexed: 09/29/2023]
Abstract
The nucleotide-binding oligomerization domain-like receptor protein 3 (NLRP3) inflammasome is a vital component of many inflammatory responses. Here, we intended to investigate the involvement of NLRP3 in lipopolysaccharide (LPS)-induced sepsis-associated acute kidney injury (S-AKI) and explore its mechanisms. For the first time, we validated elevated NLRP3 expression in the renal tissues of S-AKI patients by immunohistochemistry analysis. Through LPS injection in both wild-type and Nlrp3-/- mice, a S-AKI model was developed. It was found that LPS-induced kidney injury, including an abnormal morphology in a histological examination, abnormal renal function in a laboratory examination, and an increase in the expression of AKI biomarkers, was dramatically reversed in Nlrp3-deficient mice. Nlrp3 deletion alleviated renal inflammation, as evidenced by the suppression of the expression of pro-inflammatory cytokines and chemokines. A combinative analysis of RNA sequencing and the FerrDb V2 database showed that Nlrp3 knockout regulated multiple metabolism pathways and ferroptosis in LPS-induced S-AKI. Further qPCR coupled with Prussian blue staining demonstrated that Nlrp3 knockout inhibited murine renal ferroptosis, indicating a novel mechanism involving S-AKI pathogenesis by NLRP3. Altogether, the aforementioned findings suggest that Nlrp3 deficiency alleviates LPS-induced S-AKI by reducing renal inflammation and ferroptosis. Our data highlight that NLRP3 is a potential therapeutic target for S-AKI.
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Affiliation(s)
- Zhilan Li
- Department of Rheumatology and Immunology, Xiangya Hospital, Central South University, Changsha 410008, China
| | - Xuan Wang
- Department of General Medicine, Xiangya Hospital, Central South University, Changsha 410008, China
| | - Yi Peng
- Department of Rheumatology and Immunology, Xiangya Hospital, Central South University, Changsha 410008, China
| | - Hongling Yin
- Department of Pathology, Xiangya Hospital, Central South University, Changsha 410008, China
| | - Shenyi Yu
- Department of Rheumatology and Immunology, Zhuzhou Hospital Affiliated to Xiangya School of Medicine, Central South University, Zhuzhou 412007, China
| | - Weiru Zhang
- Department of General Medicine, Xiangya Hospital, Central South University, Changsha 410008, China
| | - Xin Ni
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha 410008, China
- International Collaborative Research Center for Medical Metabolomics, Xiangya Hospital, Central South University, Changsha 410008, China
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Yan T, Sun M, Su R, Wang X, Lu X, Xiao Y, Deng H, Liu X, Tang W, Zhang G. Transcriptomic Profiling of Cold Stress-Induced Differentially Expressed Genes in Seedling Stage of Indica Rice. Plants (Basel) 2023; 12:2675. [PMID: 37514289 PMCID: PMC10384097 DOI: 10.3390/plants12142675] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/20/2023] [Revised: 07/15/2023] [Accepted: 07/15/2023] [Indexed: 07/30/2023]
Abstract
Cold stress significantly constrains the growth, development, productivity, and distribution of rice, particularly the indica cultivar, known for its susceptibility to cold, limiting its cultivation to specific regions. This study investigated the genes associated with cold responsiveness in the roots of two indica cultivars, SQSL (cold-tolerant) and XZX45 (cold-susceptible), through transcriptome dynamics analysis during the seedling stage. The analysis identified 8144 and 6427 differentially expressed genes (DEGs) in XZX45 and SQSL, respectively. Among these DEGs, 4672 (G2) were shared by both cultivars, while 3472 DEGs (G1) were specific to XZX45, and 1755 DEGs (G3) were specific to SQSL. Additionally, 572 differentially expressed transcription factors (TFs) from 48 TF families, including WRKY, NAC, bHLH, ERF, bZIP, MYB, C2H2, and GRAS, were identified. Gene Ontology (GO) enrichment analysis revealed significant enrichment of DEGs in the G3 group, particularly in the "response to cold" category, highlighting the crucial role of these specific genes in response to cold stress in SQSL. Furthermore, Kyoto Encyclopedia of Genes and Genomes (KEGG) analysis indicated pronounced enrichment of DEGs in the G3 group in metabolic pathways such as "Pyruvate metabolism", "Glycolysis/Gluconeogenesis", and "Starch and sucrose metabolism", contributing to cold tolerance mechanisms in SQSL. Overall, this study provides comprehensive insights into the molecular mechanisms underlying cold responses in the indica cultivar, informing future genetic improvement strategies to enhance cold tolerance in susceptible indica rice cultivars.
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Affiliation(s)
- Tao Yan
- College of Agronomy, Hunan Agricultural University, Changsha 410128, China
- Hunan Provincial Key Laboratory of Rice and Rapeseed Breeding for Disease Resistance, Changsha 410128, China
| | - Meng Sun
- College of Agronomy, Hunan Agricultural University, Changsha 410128, China
- Hunan Provincial Key Laboratory of Rice and Rapeseed Breeding for Disease Resistance, Changsha 410128, China
| | - Rui Su
- College of Agronomy, Hunan Agricultural University, Changsha 410128, China
- Hunan Provincial Key Laboratory of Rice and Rapeseed Breeding for Disease Resistance, Changsha 410128, China
| | - Xiaozhong Wang
- College of Agronomy, Hunan Agricultural University, Changsha 410128, China
- Hunan Provincial Key Laboratory of Rice and Rapeseed Breeding for Disease Resistance, Changsha 410128, China
| | - Xuedan Lu
- College of Agronomy, Hunan Agricultural University, Changsha 410128, China
- Hunan Provincial Key Laboratory of Rice and Rapeseed Breeding for Disease Resistance, Changsha 410128, China
| | - Yunhua Xiao
- College of Agronomy, Hunan Agricultural University, Changsha 410128, China
- Hunan Provincial Key Laboratory of Rice and Rapeseed Breeding for Disease Resistance, Changsha 410128, China
| | - Huabing Deng
- College of Agronomy, Hunan Agricultural University, Changsha 410128, China
- Hunan Provincial Key Laboratory of Rice and Rapeseed Breeding for Disease Resistance, Changsha 410128, China
| | - Xiong Liu
- College of Agronomy, Hunan Agricultural University, Changsha 410128, China
- Hunan Provincial Key Laboratory of Rice and Rapeseed Breeding for Disease Resistance, Changsha 410128, China
| | - Wenbang Tang
- College of Agronomy, Hunan Agricultural University, Changsha 410128, China
- Hunan Provincial Key Laboratory of Rice and Rapeseed Breeding for Disease Resistance, Changsha 410128, China
- Hunan Hybrid Rice Research Center, Hunan Academy of Agricultural Sciences, Changsha 410128, China
- State Key Laboratory of Hybrid Rice, Changsha 410128, China
| | - Guilian Zhang
- College of Agronomy, Hunan Agricultural University, Changsha 410128, China
- Hunan Provincial Key Laboratory of Rice and Rapeseed Breeding for Disease Resistance, Changsha 410128, China
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10
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Zhou Q, Zeng F, Meng Y, Liu Y, Liu H, Deng G. Serological response following COVID-19 vaccines in patients living with HIV: a dose-response meta-analysis. Sci Rep 2023; 13:9893. [PMID: 37336939 DOI: 10.1038/s41598-023-37051-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2023] [Accepted: 06/15/2023] [Indexed: 06/21/2023] Open
Abstract
To quantify the pooled rate and risk ratio of seroconversion following the uncomplete, complete, or booster dose of COVID-19 vaccines in patients living with HIV. PubMed, Embase and Cochrane library were searched for eligible studies to perform a systematic review and meta-analysis based on PRIMSA guidelines. The pooled rate and risk ratio of seroconversion were assessed using the Freeman-Tukey double arcsine method and Mantel-Haenszel approach, respectively. Random-effects model was preferentially used as the primary approach to pool results across studies. A total of 50 studies involving 7160 patients living with HIV were analyzed. We demonstrated that only 75.0% (56.4% to 89.9%) patients living with HIV achieved a seroconversion after uncomplete vaccination, which improved to 89.3% (84.2% to 93.5%) after complete vaccination, and 98.4% (94.8% to 100%) after booster vaccination. The seroconversion rates were significantly lower compared to controls at all the stages, while the risk ratios for uncomplete, complete, and booster vaccination were 0.87 (0.77 to 0.99), 0.95 (0.92 to 0.98), and 0.97 (0.94 to 0.99), respectively. We concluded that vaccine doses were associated with consistently improved rates and risk ratios of seroconversion in patients living with HIV, highlighting the significance of booster vaccination for patients living with HIV.
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Affiliation(s)
- Qian Zhou
- Department of Dermatology, Hunan Engineering Research Center of Skin Health and Disease, Hunan Key Laboratory of Skin Cancer and Psoriasis, Xiangya Hospital, Central South University, Changsha, 410008, Hunan, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, 410008, Hunan, China
| | - Furong Zeng
- Department of Oncology, Xiangya Hospital, Central South University, Changsha, 410008, Hunan, China
| | - Yu Meng
- Department of Dermatology, Hunan Engineering Research Center of Skin Health and Disease, Hunan Key Laboratory of Skin Cancer and Psoriasis, Xiangya Hospital, Central South University, Changsha, 410008, Hunan, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, 410008, Hunan, China
| | - Yihuang Liu
- Department of Dermatology, Hunan Engineering Research Center of Skin Health and Disease, Hunan Key Laboratory of Skin Cancer and Psoriasis, Xiangya Hospital, Central South University, Changsha, 410008, Hunan, China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, 410008, Hunan, China
| | - Hong Liu
- Department of Dermatology, Hunan Engineering Research Center of Skin Health and Disease, Hunan Key Laboratory of Skin Cancer and Psoriasis, Xiangya Hospital, Central South University, Changsha, 410008, Hunan, China.
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, 410008, Hunan, China.
| | - Guangtong Deng
- Department of Dermatology, Hunan Engineering Research Center of Skin Health and Disease, Hunan Key Laboratory of Skin Cancer and Psoriasis, Xiangya Hospital, Central South University, Changsha, 410008, Hunan, China.
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, 410008, Hunan, China.
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11
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Zhou X, Ji L, Ma Y, Tian G, Lv K, Yang J. Intratumoral Microbiota-Host Interactions Shape the Variability of Lung Adenocarcinoma and Lung Squamous Cell Carcinoma in Recurrence and Metastasis. Microbiol Spectr 2023; 11:e0373822. [PMID: 37074188 PMCID: PMC10269859 DOI: 10.1128/spectrum.03738-22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2022] [Accepted: 03/10/2023] [Indexed: 04/20/2023] Open
Abstract
Differences in tissue microbiota-host interaction between lung squamous cell carcinoma (LUSC) and lung adenocarcinoma (LUAD) about recurrence and metastasis have not been well studied. In this study, we performed bioinformatics analyses to identify the genes and tissue microbes significantly associated with recurrence or metastasis. All lung cancer patients were divided into the recurrence or metastasis (RM) group and the nonrecurrence and nonmetastasis (non-RM) group according to whether or not they had recurred or metastasized within 3 years after the initial surgery. Results showed that there were significant differences between LUAD and LUSC in gene expression and microbial abundance associated with recurrence and metastasis. Compared with non-RM, the bacterial community of RM had a lower richness in LUSC. In LUSC, host genes significantly correlated with tissue microbe, whereas host-tissue microbe interaction in LUAD was rare. Then, we established a novel multimodal machine learning model based on genes and microbes to predict the recurrence and metastasis risk of a LUSC patient, which achieves an area under the curve (AUC) of 0.81. In addition, the predicted risk score was significantly associated with the patient's survival. IMPORTANCE Our study elucidates significant differences in RM-associated host-microbe interactions between LUAD and LUSC. Besides, the microbes in tumor tissue could be used to predict the RM risk of LUSC, and the predicted risk score is associated with patients' survival.
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Affiliation(s)
- Xiangfeng Zhou
- Department of Mathematics, Ocean University of China, Qingdao, China
- Geneis Beijing Co., Ltd., Beijing, China
| | - Lei Ji
- Geneis Beijing Co., Ltd., Beijing, China
- Qingdao Geneis Institute of Big Data Mining and Precision Medicine, Qingdao, China
| | - Yanyu Ma
- Qingdao Geneis Institute of Big Data Mining and Precision Medicine, Qingdao, China
- Department of Mathematics, Zhejiang University of Science and Technology, Hangzhou, Zhejiang, China
| | - Geng Tian
- Geneis Beijing Co., Ltd., Beijing, China
- Qingdao Geneis Institute of Big Data Mining and Precision Medicine, Qingdao, China
| | - Kebo Lv
- Department of Mathematics, Ocean University of China, Qingdao, China
| | - Jialiang Yang
- Geneis Beijing Co., Ltd., Beijing, China
- Qingdao Geneis Institute of Big Data Mining and Precision Medicine, Qingdao, China
- Chifeng Municipal Hospital, Chifeng, Inner Mongolia, China
- Academician Workstation, Changsha Medical University, Changsha, China
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12
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Long J, Mao Q, Peng Y, Liu L, Hong Y, Xiang H, Ma M, Zou H, Kuang J. Three New Benzophenone Derivatives from Selaginella tamariscina. Molecules 2023; 28:4582. [PMID: 37375139 DOI: 10.3390/molecules28124582] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Revised: 05/31/2023] [Accepted: 05/31/2023] [Indexed: 06/29/2023] Open
Abstract
Six compounds including three new benzophenones, selagibenzophenones D-F (1-3), two known selaginellins (4-5) and one known flavonoid (6), were isolated from Selaginella tamariscina. The structures of new compounds were established by 1D-, 2D-NMR and HR-ESI-MS spectral analyses. Compound 1 represents the second example of diarylbenzophenone from natural sources. Compound 2 possesses an unusual biphenyl-bisbenzophenone structure. Their cytotoxicity against human hepatocellular carcinoma HepG2 and SMCC-7721 cells and inhibitory activities on lipopolysaccharide-induced nitric oxide (NO) production in RAW264.7 cells were evaluated. Compound 2 showed moderate inhibitory activity against HepG2 and SMCC-7721 cells, and compounds 4 and 5 showed moderate inhibitory activity to HepG2 cells. Compounds 2 and 5 also exhibited inhibitory activities on lipopolysaccharide-induced nitric oxide (NO) production.
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Affiliation(s)
- Jiayin Long
- Key Laboratory of Study and Discovery of Small Targeted Molecules of Hunan Province, School of Medicine, Hunan Normal University, Changsha 410013, China
| | - Qingqing Mao
- Key Laboratory of Study and Discovery of Small Targeted Molecules of Hunan Province, School of Medicine, Hunan Normal University, Changsha 410013, China
| | - Yujie Peng
- Key Laboratory of Study and Discovery of Small Targeted Molecules of Hunan Province, School of Medicine, Hunan Normal University, Changsha 410013, China
| | - Lei Liu
- Key Laboratory of Study and Discovery of Small Targeted Molecules of Hunan Province, School of Medicine, Hunan Normal University, Changsha 410013, China
| | - Yin Hong
- Key Laboratory of Study and Discovery of Small Targeted Molecules of Hunan Province, School of Medicine, Hunan Normal University, Changsha 410013, China
| | - Honglin Xiang
- Key Laboratory of Study and Discovery of Small Targeted Molecules of Hunan Province, School of Medicine, Hunan Normal University, Changsha 410013, China
| | - Ming Ma
- Key Laboratory of Phytochemical R&D of Hunan Province, Key Laboratory of Chemical Biology & Traditional Chinese Medicine Research of Ministry of Education, College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, China
| | - Hui Zou
- Key Laboratory of Study and Discovery of Small Targeted Molecules of Hunan Province, School of Medicine, Hunan Normal University, Changsha 410013, China
| | - Junwei Kuang
- Key Laboratory of Phytochemical R&D of Hunan Province, Key Laboratory of Chemical Biology & Traditional Chinese Medicine Research of Ministry of Education, College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, China
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13
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Wang C, Lin Z, Yuan Z, Tang T, Fan L, Liu Y, Wu X. Whole-exome sequencing detected a novel AIFM1 variant in a Han-Chinese family with Cowchock syndrome. Hereditas 2023; 160:22. [PMID: 37173762 PMCID: PMC10176718 DOI: 10.1186/s41065-023-00282-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2022] [Accepted: 04/11/2023] [Indexed: 05/15/2023] Open
Abstract
Charcot-Marie-Tooth disease(CMT) is a hereditary peripheral neuropathy, characterized by progressive distal hypoesthesia and amyotrophia. CMT is characterized by an X- linked recessive inheritance pattern. The apoptosis-inducing factor mitochondria associated-1 (AIFM1) is the main pathogenic gene of the X-linked recessive Charcot-Marie-Tooth disease-4 with or without cerebellar ataxia (CMTX4), also known as Cowchock syndrome. In this study, we enrolled a family with CMTX from the southeast region of China and identified a novel AIFM1 variant (NM_004208.3: c.931C>G; p.L311V) using whole exon sequencing technology. The results of our study may also be useful for genetic counseling, embryo screening of in vitro fertilization embryos, and prenatal genetic diagnosis.
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Affiliation(s)
- Chenyu Wang
- Department of Neurology, Affiliated Hospital of Yangzhou University, Yangzhou, 225001, China
- Department of Cell Biology, The School of Life Sciences, Central South University, Changsha, 410013, China
| | - Zhaojing Lin
- Department of anesthesia, The Second of Xiangya Hospital of Central South University, Changsha, 410078, China
| | - ZhuangZhuang Yuan
- Department of Cell Biology, The School of Life Sciences, Central South University, Changsha, 410013, China
| | - Tieyu Tang
- Department of Neurology, Affiliated Hospital of Yangzhou University, Yangzhou, 225001, China
| | - Liangliang Fan
- Department of Cell Biology, The School of Life Sciences, Central South University, Changsha, 410013, China
| | - Yihui Liu
- Department of Neurology, Affiliated Hospital of Yangzhou University, Yangzhou, 225001, China.
| | - Xuan Wu
- Department of Neurology, Affiliated Hospital of Yangzhou University, Yangzhou, 225001, China.
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14
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Dai Z, Zhang X. Pathophysiology and Clinical Impacts of Chronic Kidney Disease on Coronary Artery Calcification. J Cardiovasc Dev Dis 2023; 10:jcdd10050207. [PMID: 37233174 DOI: 10.3390/jcdd10050207] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Revised: 05/05/2023] [Accepted: 05/06/2023] [Indexed: 05/27/2023] Open
Abstract
The global prevalence of chronic kidney disease (CKD) has increased in recent years. Adverse cardiovascular events have become the main cause of life-threatening events in patients with CKD, and vascular calcification is a risk factor for cardiovascular disease. Vascular calcification, especially coronary artery calcification, is more prevalent, severe, rapidly progressive, and harmful in patients with CKD. Some features and risk factors are unique to vascular calcification in patients with CKD; the formation of vascular calcification is not only influenced by the phenotypic transformation of vascular smooth muscle cells, but also by electrolyte and endocrine dysfunction, uremic toxin accumulation, and other novel factors. The study on the mechanism of vascular calcification in patients with renal insufficiency can provide a basis and new target for the prevention and treatment of this disease. This review aims to illustrate the impact of CKD on vascular calcification and to discuss the recent research data on the pathogenesis and factors involved in vascular calcification, mainly focusing on coronary artery calcification, in patients with CKD.
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Affiliation(s)
- Zhuoming Dai
- Department of Geriatrics, The Second Xiangya Hospital, Central South University, Changsha 410011, China
| | - Xiangyu Zhang
- Department of Geriatrics, The Second Xiangya Hospital, Central South University, Changsha 410011, China
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15
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Wu J, Wu Y, Fan H, Yang C, Yang M, Kong X, Ning C, Wang S, Xiao W, Wang N, Yi J, Yuan Z. Citrinin Exposure Induced Testicular Damage and Spermatogenesis Disorder by Triggering Endoplasmic Reticulum Stress. Foods 2023; 12:foods12081616. [PMID: 37107412 PMCID: PMC10137750 DOI: 10.3390/foods12081616] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Revised: 03/13/2023] [Accepted: 03/20/2023] [Indexed: 04/29/2023] Open
Abstract
Damage to the reproductive system is the key factor leading to male infertility. Citrinin (CTN) is produced by Penicillium and Aspergillus in nature, and is definitely found in food and animal feed. Studies have revealed that CTN can cause damage to male reproductive organs and reduce fertility, but the mechanism of toxicity has not been revealed. In the present study, male Kunming mice were given different doses of CTN (0, 1.25, 5 or 20 mg/kg BW) by intragastric administration. The results demonstrated that CTN exposure caused disorder of androgen, a decline in sperm quality, and histopathological damage of testis. The inhibition of the expression of ZO-1, claudin-1 and occludin suggests that the blood-testis barrier (BTB) was damaged. Simultaneously, CTN inhibited the activity of antioxidant enzymes such as CAT and SOD, and promoted the production of MDA and ROS, resulting in oxidative damage of testis. Additionally, apoptotic cells were detected and the ratio of Bax/Bcl-2 was increased. Not only that, CTN activated the expression of endoplasmic reticulum stress (ERS)-related proteins IRE1, ATF6, CHOP, and GRP78. Interestingly, 4-Phenylbutyric Acid (4-PBA, an ERS inhibitor) treatment blocked the adverse effects of CTN exposure on male reproduction. In short, the findings suggested that CTN exposure can cause damage to mouse testis tissue, in which ERS exhibited an important regulatory role.
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Affiliation(s)
- Jing Wu
- Colleges of Veterinary Medicine, Hunan Agricultural University, Changsha 410128, China
- Hunan Engineering Research Center of Livestock and Poultry Health Care, Hunan Agricultural University, Changsha 410128, China
| | - You Wu
- Colleges of Veterinary Medicine, Hunan Agricultural University, Changsha 410128, China
- Hunan Engineering Research Center of Livestock and Poultry Health Care, Hunan Agricultural University, Changsha 410128, China
| | - Hui Fan
- Colleges of Veterinary Medicine, Hunan Agricultural University, Changsha 410128, China
- Hunan Engineering Research Center of Livestock and Poultry Health Care, Hunan Agricultural University, Changsha 410128, China
| | - Chenglin Yang
- Colleges of Veterinary Medicine, Hunan Agricultural University, Changsha 410128, China
- Hunan Engineering Research Center of Livestock and Poultry Health Care, Hunan Agricultural University, Changsha 410128, China
| | - Mengran Yang
- Colleges of Veterinary Medicine, Hunan Agricultural University, Changsha 410128, China
- Hunan Engineering Research Center of Livestock and Poultry Health Care, Hunan Agricultural University, Changsha 410128, China
| | - Xiangyi Kong
- Colleges of Veterinary Medicine, Hunan Agricultural University, Changsha 410128, China
- Hunan Engineering Research Center of Livestock and Poultry Health Care, Hunan Agricultural University, Changsha 410128, China
| | - Can Ning
- Colleges of Veterinary Medicine, Hunan Agricultural University, Changsha 410128, China
- Hunan Engineering Research Center of Livestock and Poultry Health Care, Hunan Agricultural University, Changsha 410128, China
| | - Siqi Wang
- Colleges of Veterinary Medicine, Hunan Agricultural University, Changsha 410128, China
- Hunan Engineering Research Center of Livestock and Poultry Health Care, Hunan Agricultural University, Changsha 410128, China
| | - Wenguang Xiao
- Colleges of Veterinary Medicine, Hunan Agricultural University, Changsha 410128, China
- Hunan Engineering Research Center of Livestock and Poultry Health Care, Hunan Agricultural University, Changsha 410128, China
| | - Naidong Wang
- Colleges of Veterinary Medicine, Hunan Agricultural University, Changsha 410128, China
- Hunan Provincial Key Laboratory of Protein Engineering in Animal Vaccines, Laboratory of Functional Proteomics, Research Center of Reverse Vaccinology, Changsha 410128, China
| | - Jine Yi
- Colleges of Veterinary Medicine, Hunan Agricultural University, Changsha 410128, China
- Hunan Engineering Research Center of Livestock and Poultry Health Care, Hunan Agricultural University, Changsha 410128, China
| | - Zhihang Yuan
- Colleges of Veterinary Medicine, Hunan Agricultural University, Changsha 410128, China
- Hunan Engineering Research Center of Livestock and Poultry Health Care, Hunan Agricultural University, Changsha 410128, China
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16
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Gao S, Tang YY, Jiang L, Lan F, Li X, Zhang P, Zou W, Chen YJ, Tang XQ. H 2S Attenuates Sleep Deprivation-Induced Cognitive Impairment by Reducing Excessive Autophagy via Hippocampal Sirt-1 in WISTAR RATS. Neurochem Res 2021; 46:1941-1952. [PMID: 33914232 DOI: 10.1007/s11064-021-03314-0] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2020] [Revised: 03/05/2021] [Accepted: 03/24/2021] [Indexed: 12/14/2022]
Abstract
Sleep deprivation (SD) is widespread in society causing serious damage to cognitive function. Hydrogen sulfide (H2S), the third gas signal molecule, plays important regulatory role in learning and memory functions. Inhibition of excessive autophagy and upregulation of silent information regulator 1 (Sirt-1) have been reported to prevent cognitive dysfunction. Therefore, this present work was to address whether H2S attenuates the cognitive impairment induced by SD in Wistar rats and whether the underlying mechanisms involve in inhibition of excessive autophagy and upregulation of Sirt-1. After treatment with SD for 72 h, the cognitive function of Wistar rats was evaluated by Y-maze, new object recognition, object location, and Morris water maze tests. The results shown that SD-caused cognitive impairment was reversed by treatment with NaHS (a donor of H2S). NaHS also prevented SD-induced hippocampal excessive autophagy, as evidenced by the decrease in autophagosomes, the down-regulation of Beclin1, and the up-regulation of p62 in the hippocampus of SD-exposed Wistar rats. Furthermore, Sirtinol, an inhibitor of Sirt-1, reversed the inhibitory roles of NaHS in SD-induced cognitive impairment and excessive hippocampal autophagy in Wistar rats. Taken together, our results suggested that H2S improves the cognitive function of SD-exposed rats by inhibiting excessive hippocampal autophagy in a hippocampal Sirt-1-dependent way.
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Affiliation(s)
- Shan Gao
- Hengyang Key Laboratory of Neurodegeneration and Cognitive Impairment, Institute of Neuroscience, Hengyang Medical College, University of South China, 28 W Changsheng Road, Hengyang, 421001, Hunan, P. R. China
| | - Yi-Yun Tang
- Hengyang Key Laboratory of Neurodegeneration and Cognitive Impairment, Institute of Neuroscience, Hengyang Medical College, University of South China, 28 W Changsheng Road, Hengyang, 421001, Hunan, P. R. China
| | - Li Jiang
- Hengyang Key Laboratory of Neurodegeneration and Cognitive Impairment, Institute of Neuroscience, Hengyang Medical College, University of South China, 28 W Changsheng Road, Hengyang, 421001, Hunan, P. R. China
- Department of Neurology, Affiliated Nanhua Hospital, University of South China, 336 E Dongfeng Road, Hengyang, 421001, Hunan, P. R. China
| | - Fang Lan
- Department of Neurology, Affiliated Nanhua Hospital, University of South China, 336 E Dongfeng Road, Hengyang, 421001, Hunan, P. R. China
- Institute of Neurology, the First Affiliated Hospital, University of South China, Hengyang, 421001, Hunan, P. R. China
| | - Xiang Li
- Department of Anesthesiology, the First Affiliated Hospital, University of South China, Hengyang, 421001, Hunan, P. R. China
| | - Ping Zhang
- Hengyang Key Laboratory of Neurodegeneration and Cognitive Impairment, Institute of Neuroscience, Hengyang Medical College, University of South China, 28 W Changsheng Road, Hengyang, 421001, Hunan, P. R. China.
- Department of Neurology, Affiliated Nanhua Hospital, University of South China, 336 E Dongfeng Road, Hengyang, 421001, Hunan, P. R. China.
| | - Wei Zou
- Hengyang Key Laboratory of Neurodegeneration and Cognitive Impairment, Institute of Neuroscience, Hengyang Medical College, University of South China, 28 W Changsheng Road, Hengyang, 421001, Hunan, P. R. China
- Department of Neurology, Affiliated Nanhua Hospital, University of South China, 336 E Dongfeng Road, Hengyang, 421001, Hunan, P. R. China
| | - Yong-Jun Chen
- Hengyang Key Laboratory of Neurodegeneration and Cognitive Impairment, Institute of Neuroscience, Hengyang Medical College, University of South China, 28 W Changsheng Road, Hengyang, 421001, Hunan, P. R. China
- Department of Neurology, Affiliated Nanhua Hospital, University of South China, 336 E Dongfeng Road, Hengyang, 421001, Hunan, P. R. China
| | - Xiao-Qing Tang
- Hengyang Key Laboratory of Neurodegeneration and Cognitive Impairment, Institute of Neuroscience, Hengyang Medical College, University of South China, 28 W Changsheng Road, Hengyang, 421001, Hunan, P. R. China.
- Institute of Neurology, the First Affiliated Hospital, University of South China, Hengyang, 421001, Hunan, P. R. China.
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17
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Chen X, Zhao L, Liu Y, Zhou Z, Zhang H, Wei D, Chen J, Li Y, Ou J, Huang J, Yang X, Ma C. Otago exercise programme for physical function and mental health among older adults with cognitive frailty during COVID-19: A randomised controlled trial. J Clin Nurs 2021:10.1111/jocn.15964. [PMID: 34289524 PMCID: PMC8447213 DOI: 10.1111/jocn.15964] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2021] [Revised: 06/09/2021] [Accepted: 06/21/2021] [Indexed: 12/28/2022]
Abstract
AIMS AND OBJECTIVES Quarantine during the COVID-19 pandemic resulted in longer-term sedentary behaviours and mental health problems. Our study aimed to evaluate the impact of the Otago exercise programme (OEP) on physical function and mental health among elderly with cognitive frailty during COVID-19. BACKGROUND Lockdowns and restrictions during the COVID-19 pandemic result in longer-term sedentary behaviours related disease and mental problem. Older people with cognitive frailty are more vulnerable to be influenced. Timely intervention may achieve better outcomes, OEP exercise was designed as a balance and muscle-strengthening programme for elderly people. DESIGN A parallel-group, assessor-blinded randomised controlled trial was performed according to CONSORT guidelines. METHODS This study was conducted from July 2020 to October 2020 among 62 elderly people with cognitive frailty from a nursing home. Participants were randomly divided into an OEP group (n = 31) or a control group (n = 31). Both groups received sleep- and diet-related health education. The OEP group also received a 12-week group exercise programme. The Five Times Sit to Stand Test (FTSST), Berg Balance Scale (BBS), and Timed Up and Go Test (TUGT) were used to assess physical function. The Geriatric Depression Scale-15 (GDS-15) and the 12-Item Short Form Health Survey Mental Component Summary (SF-12 MCS) were used to assess mental health. Outcomes were measured at 6 and 12 weeks. RESULTS Physical function and mental health were similar in the two groups at baseline. At 12 weeks, the OEP group (difference in change from baseline: FTSST, -2.78; TUGT, -3.73; BBS, 2.17; GDS-15, -0.72; SF-12 MCS, 2.58; all p < .001) exhibited significantly greater improvements than the control group (difference in change from baseline: FTSST, 1.55; TUGT, 1.66; BBS, -0.10; GDS-15, 1.07; SF-12 MCS, -5.95; all p < .001). CONCLUSION Our findings showed the OEP group had better physical function and mental health outcomes than the control group. OEP can be used to improve the physical and mental function among elderly people with cognitive frailty during the COVID-19 pandemic. RELEVANCE TO CLINICAL PRACTICE Otago exercise program intervention programmes should be implemented to improve physical function for cognitive frailty elderly to reduce the harm of longer-term sedentary behaviours, and to ruduce depression symptom and improve mental health, particularly during COVID-19 pandemic period.
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Affiliation(s)
- Xi Chen
- The Second Xiangya HospitalCentral South UniversityChangshaChina
| | - Liping Zhao
- The Second Xiangya HospitalCentral South UniversityChangshaChina
| | - Youshuo Liu
- The Second Xiangya HospitalCentral South UniversityChangshaChina
| | - Zhiming Zhou
- Geriatric Rehabilitation Hospital of ChangshaChangshaChina
| | - Hua Zhang
- Changsha NO.1 Social Welfare InstitutionChangshaChina
| | - Dongli Wei
- Geriatric Rehabilitation Hospital of ChangshaChangshaChina
| | - Jianliang Chen
- Shenzhen Hostal of Integrated Traditional Chinese and Western MedicineShenzhenChina
| | - Yan Li
- The Second Xiangya HospitalCentral South UniversityChangshaChina
| | - Jinnan Ou
- The Second Xiangya HospitalCentral South UniversityChangshaChina
| | - Jin Huang
- The Second Xiangya HospitalCentral South UniversityChangshaChina
| | - Xiaomei Yang
- Guangzhou Development District HospitalGuangzhouChina
| | - Caili Ma
- The Second Xiangya HospitalCentral South UniversityChangshaChina
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18
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Li X, Xiang F, Zhang W, Yan J, Li X, Zhong M, Yang P, Chen C, Liu X, Mao D, Zhao X. Characterization and fine mapping of a new dwarf mutant in Brassica napus. BMC Plant Biol 2021; 21:117. [PMID: 33637037 PMCID: PMC7908660 DOI: 10.1186/s12870-021-02885-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/06/2020] [Accepted: 02/10/2021] [Indexed: 06/12/2023]
Abstract
BACKGROUND Plant height is an important plant characteristic closely related to yield performance of many crops. Reasonable reduction of plant height of crops is beneficial for improving yield and enhancing lodging resistance. RESULTS In the present study, we described the Brassica napus dwarf mutant bnd2 that was isolated using ethyl methanesulfonate (EMS) mutagenesis. Compared to wild type (WT), bnd2 exhibited reduced height and shorter hypocotyl and petiole leaves. By crossing the bnd2 mutant with the WT strain, we found that the ratio of the mutant to the WT in the F2 population was close to 1:3, indicating that bnd2 is a recessive mutation of a single locus. Following bulked segregant analysis (BSA) by resequencing, BND2 was found to be located in the 13.77-18.08 Mb interval of chromosome A08, with a length of 4.31 Mb. After fine mapping with single nucleotide polymorphism (SNP) and insertion/deletion (InDel) markers, the gene was narrowed to a 140-Kb interval ranging from 15.62 Mb to 15.76 Mb. According to reference genome annotation, there were 27 genes in the interval, of which BnaA08g20960D had an SNP type variation in the intron between the mutant and its parent, which may be the candidate gene corresponding to BND2. The hybrid line derived from a cross between the mutant bnd2 and the commercial cultivar L329 had similar plant height but higher grain yield compared to the commercial cultivar, suggesting that the allele bnd2 is beneficial for hybrid breeding of lodging resistant and high yield rapeseed. CONCLUSION In this study, we identified a novel dwarf mutant of rapeseed with a new locus, which may be useful for functional analyses of genetic mechanisms of plant architecture and grain yield in rapeseed.
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Affiliation(s)
- Xin Li
- College of Biology, Hunan Hybrid Rape Engineering and Technology Research Center, Hunan University, Changsha, 410082, China
- Shenzhen Institute, Hunan University, Shenzhen, 518057, China
- Key Laboratory of Agro-Ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, 410125, China
| | - Fujiang Xiang
- College of Biology, Hunan Hybrid Rape Engineering and Technology Research Center, Hunan University, Changsha, 410082, China
- Shenzhen Institute, Hunan University, Shenzhen, 518057, China
| | - Wei Zhang
- College of Agronnomy, Hunan Agricultural University, Changsha, 410128, China
| | - Jindong Yan
- College of Biology, Hunan Hybrid Rape Engineering and Technology Research Center, Hunan University, Changsha, 410082, China
- Shenzhen Institute, Hunan University, Shenzhen, 518057, China
| | - Xinmei Li
- College of Biology, Hunan Hybrid Rape Engineering and Technology Research Center, Hunan University, Changsha, 410082, China
- Shenzhen Institute, Hunan University, Shenzhen, 518057, China
| | - Ming Zhong
- College of Biology, Hunan Hybrid Rape Engineering and Technology Research Center, Hunan University, Changsha, 410082, China
- Shenzhen Institute, Hunan University, Shenzhen, 518057, China
| | - Piao Yang
- College of Biology, Hunan Hybrid Rape Engineering and Technology Research Center, Hunan University, Changsha, 410082, China
- Shenzhen Institute, Hunan University, Shenzhen, 518057, China
| | - Caiyan Chen
- Key Laboratory of Agro-Ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, 410125, China
| | - Xuanming Liu
- College of Biology, Hunan Hybrid Rape Engineering and Technology Research Center, Hunan University, Changsha, 410082, China
| | - Donghai Mao
- Key Laboratory of Agro-Ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, 410125, China.
| | - Xiaoying Zhao
- College of Biology, Hunan Hybrid Rape Engineering and Technology Research Center, Hunan University, Changsha, 410082, China.
- Shenzhen Institute, Hunan University, Shenzhen, 518057, China.
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