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Zhao YX, Song JY, Bao XW, Zhang JL, Wu JC, Wang LY, He C, Shao W, Bai XL, Liang TB, Sheng JP. Single-cell RNA sequencing-guided fate-mapping toolkit delineates the contribution of yolk sac erythro-myeloid progenitors. Cell Rep 2023; 42:113364. [PMID: 37922312 DOI: 10.1016/j.celrep.2023.113364] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2023] [Revised: 09/16/2023] [Accepted: 10/16/2023] [Indexed: 11/05/2023] Open
Abstract
Erythro-myeloid progenitors of the yolk sac that originates during early embryo development has been suggested to generate tissue-resident macrophage, mast cell, and even endothelial cell populations from fetal to adult stages. However, the heterogeneity of erythro-myeloid progenitors (EMPs) is not well characterized. Here, we adapt single-cell RNA sequencing to dissect the heterogeneity of EMPs and establish several fate-mapping tools for each EMP subset to trace the contributions of different EMP subsets. We identify two primitive and one definitive EMP subsets from the yolk sac. In addition, we find that primitive EMPs are decoupled from definitive EMPs. Furthermore, we confirm that primitive and definitive EMPs give rise to microglia and other tissue-resident macrophages, respectively. In contrast, only Kit+ Csf1r- primitive EMPs generate endothelial cells transiently during early embryo development. Overall, our results delineate the contribution of yolk sac EMPs more clearly based on the single-cell RNA sequencing (scRNA-seq)-guided fate-mapping toolkit.
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Affiliation(s)
- Y X Zhao
- Department of Hepatobiliary and Pancreatic Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310002, China; Zhejiang Provincial Key Laboratory of Pancreatic Disease, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310002, China; Zhejiang University Cancer Center, Zhejiang University, Hangzhou 310002, China
| | - J Y Song
- Department of Hepatobiliary and Pancreatic Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310002, China; Zhejiang Provincial Key Laboratory of Pancreatic Disease, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310002, China; Zhejiang University Cancer Center, Zhejiang University, Hangzhou 310002, China
| | - X W Bao
- Department of Medical Oncology, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310002, China
| | - J L Zhang
- Department of Hepatobiliary and Pancreatic Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310002, China; Zhejiang Provincial Key Laboratory of Pancreatic Disease, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310002, China; Zhejiang University Cancer Center, Zhejiang University, Hangzhou 310002, China
| | - J C Wu
- Department of Hepatobiliary and Pancreatic Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310002, China; Zhejiang Provincial Key Laboratory of Pancreatic Disease, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310002, China; Zhejiang University Cancer Center, Zhejiang University, Hangzhou 310002, China
| | - L Y Wang
- Eye Center, The Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310003, Zhejiang, China
| | - C He
- Infinity Scope Biotechnology Co., Ltd., Hangzhou 311200, China
| | - W Shao
- College of Computer Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210000, China.
| | - X L Bai
- Department of Hepatobiliary and Pancreatic Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310002, China; Zhejiang Provincial Key Laboratory of Pancreatic Disease, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310002, China; Zhejiang University Cancer Center, Zhejiang University, Hangzhou 310002, China.
| | - T B Liang
- Department of Hepatobiliary and Pancreatic Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310002, China; Zhejiang Provincial Key Laboratory of Pancreatic Disease, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310002, China; Zhejiang University Cancer Center, Zhejiang University, Hangzhou 310002, China.
| | - J P Sheng
- Department of Hepatobiliary and Pancreatic Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310002, China; Zhejiang Provincial Key Laboratory of Pancreatic Disease, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310002, China; Zhejiang University Cancer Center, Zhejiang University, Hangzhou 310002, China.
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Yang Y, Yuan Y, Liu H, Gao L, Shao W. [Analysis of 15 cases of bronchial-pulmonary artery fistula]. Zhonghua Er Ke Za Zhi 2023; 61:141-145. [PMID: 36720596 DOI: 10.3760/cma.j.cn112140-20220513-00445] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Objective: To summarize the clinical characteristics of bronchial-pulmonary artery fistula and evaluate the effect of interventional closure of bronchial-pulmonary artery fistula. Methods: A retrospective case study was conducted. Fifteen children with hemoptysis who were diagnosed with bronchial-pulmonary artery fistula in Beijing Children's Hospital, Capital Medical University from January 2018 to March 2022 were selected. Their clinical symptoms and chest-enhanced CT findings were recorded. The children who failed to improve after anti-infection and hemostasis treatment were treated with transcatheter embolization through microparticles under digital subtraction angiography (DSA). The efficacy and post-operation recurrence were evaluated. Results: There were 15 children, including 9 males and 6 females, aged 9.8 (3.7, 12.1) years, weighing 35 (16, 55) kg. There was hemoptysis of varying degrees before surgery. Only 2 children had decreased hemoglobin. Chest enhanced CT showed that their bronchial arteries were thickened and tortuous, including 11 cases of single vessel disease and 4 cases of multivessel disease; 11 children had varying degrees of pneumonia and 4 children had atelectasis. Except for one case effectively treated with medical therapy, the remaining 14 cases were all treated with transcatheter interventional closure with embolic microparticles, among whom 12 had their fistula completely blocked with a single operation and the other 2 children underwent multiple operations because of too many fistulas. One child had extensive bronchial-pulmonary artery fistula which failed to be blocked completely even after multiple operations. Among the remaining 13 children, only 2 patients whose fistula was considered to be completely closed had recurrence presenting with hemoptysis at 3 months and 2 years after the operation, and no hemoptysis was found after the second closure. All children were discharged without chest pain, spinal cord paraplegia, or other serious complications. Fourteen children were followed up for 1.4 (0.9,2.9) years, among whom one still has intermittent mild hemoptysis due to incomplete closure and the rest had a satisfactory outcome. Conclusions: Hemoptysis is the first symptom of bronchial-pulmonary artery fistula. For children with failed medical treatment, transcatheter closure with an embolic pellet is effective, safe and feasible, with a low recurrence rate.
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Affiliation(s)
- Y Yang
- Department of Cardiology, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, China
| | - Y Yuan
- Department of Cardiology, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, China
| | - H Liu
- Department of Cardiology, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, China
| | - L Gao
- Department of Cardiology, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, China
| | - W Shao
- Department of Cardiology, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, China
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Liu Z, Du Q, Guan Q, Luo H, Shan Y, Shao W. A Monte Carlo simulation-based health risk assessment of heavy metals in soils of an oasis agricultural region in northwest China. Sci Total Environ 2023; 857:159543. [PMID: 36272483 DOI: 10.1016/j.scitotenv.2022.159543] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/03/2022] [Revised: 08/10/2022] [Accepted: 10/14/2022] [Indexed: 06/16/2023]
Abstract
In recent years, heavy metal contamination of soils has been increasing, posing a major threat to food security, human health, and soil ecosystems. This study analyzed the spatial characteristics, contamination sources, risks of heavy metals by collecting topsoil samples from farmland in an oasis agricultural region in northwest China. The results found that soil heavy metals in farmland were at a moderate contamination level. The PMF model classifies soil heavy metals as fertilizer and pesticide sources dominated by As and Mn with 27.8 %, mixed sources of transport and agricultural sources dominated by Cu, Zn, Cd and Pb with 26.9 %, metal processing sources dominated by Cr and Ni with 22.6 %, and the combined pollution sources of Ti, V, Cr, Mn, Fe, As, Pb dominated by natural sources and fuel combustion. The noncarcinogenic and carcinogenic risks values from the ingestion route were higher for children than for adults. The non-carcinogenic risk of heavy metals to adults in the southwestern and central regions of the study area was >1 × 10-4. The carcinogenic risk was >1 in all adults, but >1 in children in the central and southwestern study areas. Monte Carlo simulation takes into account the parameters and their distributions that affect the health risk assessment model by combining the uncertainty assessment with the health risk, which will reduce the uncertainty of the health risk assessment. The results showed that conventional deterministic risk assessment may overestimate health risk outcomes. In addition, As has a 1.85 % probability of non-carcinogenic risk to children, and an 85.3 % probability of total non-carcinogenic risk for children for all heavy metals. 69.5 % and 11.4 % probability of carcinogenic risk for children and adults respectively for Ni, and 96.4 % and 52.1 % probability of total carcinogenic risk, suggesting that Ni is a priority control heavy metal.
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Affiliation(s)
- Zhan Liu
- Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, China
| | - Qinqin Du
- Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, China
| | - Qingyu Guan
- Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, China.
| | - Haiping Luo
- Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, China
| | - Yuxin Shan
- Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, China
| | - Wenyan Shao
- Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, China
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Capoferri A, Wiegand A, Hong F, Shao W, Sobolewski M, Kearney M, Hoh R, Deeks S, Coffin J, Mellors J. OP 1.3 – 00017 The fraction of cells with unspliced HIV RNA is not associated with plasma viremia. J Virus Erad 2022. [DOI: 10.1016/j.jve.2022.100098] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
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Liu L, Lu Y, Shan Y, Mi J, Zhang Z, Ni F, Zhang J, Shao W. Pollution characteristics of soil heavy metals around two typical copper mining and beneficiation enterprises in Northwest China. Environ Monit Assess 2022; 194:788. [PMID: 36104572 DOI: 10.1007/s10661-022-10416-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] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/14/2022] [Accepted: 08/30/2022] [Indexed: 06/15/2023]
Abstract
In order to investigate the situation of heavy metal pollution in the heavy metal industry in Gansu Province, a large copper mining province, two large and typical copper mining and beneficiation enterprises with differences in topographic features, climatic conditions, and soil types were selected as the target of this study based on similar ore types and beneficiation processes. Around these two enterprises, geochemical baselines of the six heavy metals were established, while the degree of local soil heavy metal pollution and potential hazards to humans were assessed based on statistical analysis, single-factor and multi-factor index analysis, and health risk evaluation models. In addition, Spearman's correlation analysis and hierarchical cluster analysis were used to explore the intrinsic association between each heavy metal in the two mining industries to reveal the pattern of soil heavy metal pollution in the copper mining and beneficiation industry and to propose targeted measures to improve and prevent soil heavy metal pollution. The results showed that the heavy metal pollution in the soil around Shengxi Mining Co., Ltd. of Subei County (SX enterprise) was higher than that around Yangba Copper Co., Ltd. of Gansu Province (YB enterprise), but the two enterprises had similar patterns of pollution, with an overall medium level of pollution. The carcinogenic and non-carcinogenic risks for children and adults were within acceptable limits for both enterprises. Besides, the correlation between the different heavy metals to similarity in their sources of contamination and the different degrees of association between the soil heavy metals of the two enterprises due to their environmental characteristics.
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Affiliation(s)
- Lei Liu
- Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, 730000, China
- Gansu Solid Waste and Chemicals Center, Lanzhou, 730000, China
| | - Yajing Lu
- Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, 730000, China
- Gansu Solid Waste and Chemicals Center, Lanzhou, 730000, China
| | - Yuxin Shan
- Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, 730000, China
- Gansu Solid Waste and Chemicals Center, Lanzhou, 730000, China
| | - Jimin Mi
- Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, 730000, China
- Gansu Solid Waste and Chemicals Center, Lanzhou, 730000, China
| | - Zepeng Zhang
- Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, 730000, China
- Gansu Solid Waste and Chemicals Center, Lanzhou, 730000, China
| | - Fei Ni
- Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, 730000, China
- Gansu Solid Waste and Chemicals Center, Lanzhou, 730000, China
| | - Jun Zhang
- Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, 730000, China
- Gansu Solid Waste and Chemicals Center, Lanzhou, 730000, China
| | - Wenyan Shao
- Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, 730000, China.
- Gansu Solid Waste and Chemicals Center, Lanzhou, 730000, China.
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Guan Q, Liu Z, Shao W, Tian J, Luo H, Ni F, Shan Y. Probabilistic risk assessment of heavy metals in urban farmland soils of a typical oasis city in northwest China. Sci Total Environ 2022; 833:155096. [PMID: 35398134 DOI: 10.1016/j.scitotenv.2022.155096] [Citation(s) in RCA: 27] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/26/2022] [Revised: 03/30/2022] [Accepted: 04/03/2022] [Indexed: 06/14/2023]
Abstract
Previous studies lacked quantitative evaluation studies of the probability of ecology and human health risks from soil heavy metals. This study assessed heavy metal risk level by collecting topsoil samples from a typical oasis city (Wuwei) in northwest China and then quantitatively evaluating the ecological risk from heavy metals by incorporating the uncertainty of health risk model parameters into the risk assessment. This study found that anthropogenic activities have influenced the accumulation of heavy metals in the study area and that the risk of contamination of soil heavy metals was characterized as light to moderate contamination and low ecological risk. On this basis, the species sensitivity distribution curves of heavy metals were constructed using species acute toxicity data, the predicted no effect concentrations of heavy metals were derived, and a probabilistic ecological risk evaluation was conducted. The results show that the current soil environmental quality standards in China are not effective in protecting species diversity. In addition, the probability of ecological risk for Cr, Ni and As in the study area was 63.3%, 23.8% and 7.1%, however, traditional pollution assessment methods underestimate the hazard of Cr. Monte Carlo simulations have shown that the probability of the carcinogenic risk of Cr (adults: 79.4%; children: 94.5%) and As (adults: 78.9%; children: 94.0%) is high, the probability of the total carcinogenic risk exceeding 1E-06 is 99.0%, the probability of the non-carcinogenic risk is low, and the slope factor and reference dose can significantly affect the evaluation of human health risks.
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Affiliation(s)
- Qingyu Guan
- Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, China.
| | - Zhan Liu
- Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, China
| | - Wenyan Shao
- Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, China
| | - Jing Tian
- Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, China
| | - Haiping Luo
- Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, China
| | - Fei Ni
- Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, China
| | - Yuxin Shan
- Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, China
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7
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Shao W, Wang Q, Guan Q, Luo H, Ma Y, Zhang J. Distribution of soil available nutrients and their response to environmental factors based on path analysis model in arid and semi-arid area of northwest China. Sci Total Environ 2022; 827:154254. [PMID: 35248639 DOI: 10.1016/j.scitotenv.2022.154254] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/06/2021] [Revised: 02/26/2022] [Accepted: 02/26/2022] [Indexed: 06/14/2023]
Abstract
The study on the distribution of soil available nutrients and their response to the natural environment can provide valuable data and theoretical guidance for supporting human agricultural activities, especially in arid and semi-arid area where the ecological environment is extremely fragile. Based on the soil sampling and survey data set, this study established the path analysis model of SANs (soil available nutrients, including ammonium nitrogen (AN), available phosphorus (AP) and available potassium (AK)) with topography, climate and vegetation in order to explore how environmental factors interact to affect the content of SANs. Then, we combined Pearson correlation analysis and statistical analysis to explore the distribution of SANs under different environmental conditions and the response of vegetation growth to climate changes, in order to further reveal the availability of soil nutrients. The results showed that vegetation was the most important direct factor affecting AN and AP, and AK was the most sensitive to climate changes. The indirect effects of topography and climate on SANs were much greater than their direct effects. Elevation largely predicted the change of climate environment, and the regional climate directly controlled the growth of vegetation. These indirect effects strengthened the connection between topography as well as climate factors and SANs. It is worth noting that the response of vegetation to temperature and precipitation had time lag, which would have a certain impact on the content of SANs response to the environmental changes. This study is of great significance for improved understanding of soil nutrients supply and how ecosystems respond to soil nutrients availability in arid and semi-arid area.
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Affiliation(s)
- Wenyan Shao
- Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, China
| | - Qingzheng Wang
- Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, China
| | - Qingyu Guan
- Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, China.
| | - Haiping Luo
- Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, China
| | - Yunrui Ma
- Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, China
| | - Jun Zhang
- Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, China
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Du F, Zhang HJ, Shao W, Tu YY, Yang KJ, Piao LS. Adenosine diphosphate-ribosylation factor-like 15 can regulate glycolysis and lipogenesis related genes in colon cancer. J Physiol Pharmacol 2022; 73. [PMID: 36302536 DOI: 10.26402/jpp.2022.3.08] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Received: 04/15/2022] [Accepted: 06/30/2022] [Indexed: 06/16/2023]
Abstract
This study was designed to investigate the potential key genes of ADP-ribosylation factor-like 15 (ARL15) regulating glycolysis and lipogenesis in colon cancer. Hematoxylin-eosin (HE) staining and immunohistochemistry were used to observe the expression of ARL15 in 10 normal colon tissues and 10 colon cancer tissues. Immunofluorescence staining was used to observe the expression position of ARL15 in normal human colorectal mucosa cells (FHC) and colon cancer cells (HCT116 and SW620) with a confocal microscope. The ARL15 plasmid and small interfering RNA (siRNA) were constructed. After transfection, the expression levels of glycolysis and lipogenesis regulatory enzymes and messenger RNA (mRNA) transcription of ARL15 in over-expressed and silenced colon cancer cells were detected by Western blotting and real-time quantitative PCR (qRT-PCR). High expression of ARL15 in colon cancer tissue and low expression in normal colon tissue, and all expression are in the cytosol. The expression position of ARL15 in the FHC, HCT116, and SW620 cells was consistent and mainly distributed in the cytosol. After the pCMV-3Tag-2-ARL15 plasmid was transfected in HCT116, the protein expressions of FASN, AKT, P-AKT, P-GSK, SREBP-1 (p125) (p<0.01), and AMPK (p<0.001) were higher than those in the control group. The mRNA transcription level of FASN, GSK, AMPKa1, and SREBP-1 gene was higher than control group after the over-expression of ARL15. After the ARL15-siRNA was transfected in HCT116, the protein expression levels of PKM2, PFK, FASN, AKT, P-AKT, P-GSK, and AMPK decreased compared with the control group, (p<0.05). The mRNA transcription level of FASN, GSK, AMPKα1 gene was lower than control group after the low-expression of ARL15 (p<0.05). After adding 2 μM JIB-04, ARL15 in HCT116 showed statistical differences compared with the control group at 12 h, 24 h and 36 h (p<0.05). After adding 2 μM JIB-04, the protein expression levels of AKT, p-GSK, FASN, AMPK and SREBP-1 in HCT116 cells decreased significantly after 24 h. It was also found that the expression levels of AKT, P-GSK, FASN, AMPK and SREBP-1 genes in the dose-adding group were significantly lower than those in the control group. In summary, ARL15 may promote the occurrence of colon cancer by increasing the expression of protein kinase B/AMP-activated protein kinase (AKT/AMPK) downstream regulatory enzymes for glycogenesis and lipogenesis. JIB-04 can target ARL15 and affect its expression as well as the expressions of glucose and lipid metabolity-related proteins in AKT and AMPK signaling pathways.
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Affiliation(s)
- F Du
- Department of Endocrinology, Affiliated Hospital of Yanbian University, Yanji, Jilin, China
| | - H-J Zhang
- Department of Clinical Laboratory, Affiliated Hospital of Yanbian University, Yanji, Jilin, China
| | - W Shao
- Department of Clinical Laboratory, Affiliated Hospital of Yanbian University, Yanji, Jilin, China
| | - Y-Y Tu
- Department of Clinical Medicine, Yanbian University Medical College, Yanji, Jilin, China
| | - K-J Yang
- Department of Cell Biology and Medical Genetics, Yanbian University Medical College, Yanji, Jilin, China.
| | - L-S Piao
- Department of Endocrinology, Affiliated Hospital of Yanbian University, Yanji, Jilin, China.
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Schneider M, Köpke MB, Vilsmaier T, Zati Zehni A, Kessler M, Shao W, Mahner S, Cavailles V, Dannecker C, Jeschke U, Ditsch N. Die nukleäre Expression des Thyroidhormon-Rezeptors alpha 2 (TRα2) ist ein unabhängiger positiver prognostischer Marker für Patientinnen mit Mammakarzinom. Geburtshilfe Frauenheilkd 2022. [DOI: 10.1055/s-0042-1749036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
Affiliation(s)
- M Schneider
- Klinik für Frauenheilkunde und Geburtshilfe, Universitätsklinikum, Augsburg
| | - MB Köpke
- Klinik für Frauenheilkunde und Geburtshilfe, Universitätsklinikum, Augsburg
| | - T Vilsmaier
- Klinik für Frauenheilkunde und Geburtshilfe, Universitätsklinikum der LMU, München
| | - A Zati Zehni
- Klinik für Frauenheilkunde und Geburtshilfe, Universitätsklinikum der LMU, München
| | - M Kessler
- Klinik für Frauenheilkunde und Geburtshilfe, Universitätsklinikum der LMU, München
| | - W Shao
- Klinik für Frauenheilkunde und Geburtshilfe, Universitätsklinikum der LMU, München
| | - S Mahner
- Klinik für Frauenheilkunde und Geburtshilfe, Universitätsklinikum der LMU, München
| | - V Cavailles
- IRCM-Institut de Recherche en Cancérologie de Montpellier, INSERM U1194, Montpellier
| | - C Dannecker
- Klinik für Frauenheilkunde und Geburtshilfe, Universitätsklinikum, Augsburg
| | - U Jeschke
- Klinik für Frauenheilkunde und Geburtshilfe, Universitätsklinikum, Augsburg
- Klinik für Frauenheilkunde und Geburtshilfe, Universitätsklinikum der LMU, München
| | - N Ditsch
- Klinik für Frauenheilkunde und Geburtshilfe, Universitätsklinikum, Augsburg
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10
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Xiao X, Wang Q, Guan Q, Shao W, Luo H, Shan Y, Mi J. Assessing the sustainability of ecosystems over fourteen years of cultivation in Longnan City of China based on emergy analysis method. J Environ Manage 2022; 307:114513. [PMID: 35091244 DOI: 10.1016/j.jenvman.2022.114513] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/09/2021] [Revised: 01/12/2022] [Accepted: 01/13/2022] [Indexed: 06/14/2023]
Abstract
Currently, the contradiction between the limited resources of China's cultivated ecosystems and population growth is becoming increasingly evident, and the negative impacts on the environment and human activities need to be curbed. Therefore, it is crucial to quantify the sustainability of cultivated ecosystems and determine these driving factors that affect their development. This study used the emergy method to quantify the input/output flow and sustainable development of the cultivated land ecosystem in Longnan City, combined with the logarithmic mean divisia index decomposition analysis (LMDI) method to evaluate the driving factors of sustainable development in the region. The results demonstrate that from 2004 to 2017, the total emergy input and output of Longnan City showed an upward trend, and non-renewable resources (N) were always in a dominant state in the total emergy (T) input, and their proportion rose from 59.69% to 66.92%. The emergy sustainability index (ESI) is less than 1, and the environmental pressure of the system is relatively higher. Comprehensive emergy production ratio (EPR), emergy investment ratio (EIR), the renewable fraction (R%), emergy yield ratio (EYR) and environmental load ratio (ELR), showed that the agricultural ecological economy in Longnan still has great development potential, and clean energy should be developed as far as possible to replace fossil fuels in future planning. LMDI results showed that the intensity factor ΔY'A is the main driving factor for the positive development of ESI. The government's ecological protection requirements can reduce waste emissions through reasonable farming system and advocating the use of organic fertilizer, so as to achieve the purpose of improving crop yield. Vigorous development of green ecological agricultural production patterns can improve the sustainability of arable ecosystems. This study can provide a theoretical basis for the sustainable development of cultivated ecosystems and the formulation of related agricultural production measures.
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Affiliation(s)
- Xiong Xiao
- Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, 730000, China
| | - Qingzheng Wang
- Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, 730000, China
| | - Qingyu Guan
- Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, 730000, China.
| | - Wenyan Shao
- Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, 730000, China
| | - Haiping Luo
- Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, 730000, China
| | - Yuxin Shan
- Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, 730000, China
| | - Jimin Mi
- Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, 730000, China
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Wang N, Guan Q, Sun Y, Wang B, Ma Y, Shao W, Li H. Predicting the spatial pollution of soil heavy metals by using the distance determination coefficient method. Sci Total Environ 2021; 799:149452. [PMID: 34365267 DOI: 10.1016/j.scitotenv.2021.149452] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/26/2021] [Revised: 06/17/2021] [Accepted: 07/30/2021] [Indexed: 06/13/2023]
Abstract
Identifying the spatial distribution of heavy metal concentrations is a prerequisite for soil contamination assessment and control. In this study, soil surface samples (0-20 cm) were collected in Wuwei, China, and heavy metal concentrations were determined. The LUR (land use regression) model was used to simulate the spatial distribution of seven heavy metal concentrations in the study area, considering various factors, and the results were compared with ordinary kriging (OK) interpolation. Based on A Distance Decay REgression Selection Strategy (ADDRESS), the distance-coefficient of determination (DCD) was proposed to more easily and accurately select the optimal buffer of the relevant covariates. The simulation results showed that the adj R2 values of the LUR models of the remaining heavy metals were all above 0.6, and the empirical comparison showed that LUR was better than OK. The variables that showed a more significant impact on soil heavy metal concentrations in the research area included road length, normalized difference vegetation index (NDVI), and soil sample nutrients around the sample site. In the research area, the concentration of heavy metals in the soil was greatly affected by motorway, primary roads, and secondary roads in the range of 1.2-2.1 km (r > 0.5), while building and As, Cu, Pb and Zn in the range of 3.6-4.8 km had a significant correlation (r > 0.5). This study provides scientific evidence and basic information for the prevention and control of heavy metal contamination and human health risk assessment management in arid zones.
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Affiliation(s)
- Ning Wang
- Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, China
| | - Qingyu Guan
- Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, China.
| | - Yunfan Sun
- Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, China
| | - Bingrui Wang
- Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, China
| | - Yunrui Ma
- Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, China
| | - Wenyan Shao
- Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, China
| | - Huichun Li
- Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, China
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Zhang W, Shao W, Zhang A. Isobutanol tolerance and production of Saccharomyces cerevisiae can be improved by engineering its TATA-binding protein Spt15. Lett Appl Microbiol 2021; 73:694-707. [PMID: 34418130 DOI: 10.1111/lam.13555] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2021] [Revised: 08/10/2021] [Accepted: 08/12/2021] [Indexed: 11/26/2022]
Abstract
Low isobutanol tolerance of Saccharomyces cerevisiae limits its application in isobutanol fermentation. Here, we used global transcription machinery engineering to screen mutants with higher isobutanol tolerance and elevated isobutanol titres. TATA-binding protein Spt15 was used as the target of global transcription machinery engineering for improvement of such complex phenotypes. A random mutagenesis library of S. cerevisiae TATA-binding protein Spt15 was constructed and subjected to screening under isobutanol stress. A mutant strain (denoted as spt15-3) with improved isobutanol tolerance was identified. There were three mutations of Spt15 in strain spt15-3, including deletion of A at position -132 nt upstream of initiation codon, insertion of G at position -65 nt upstream of initiation codon and a synonymous mutation at position 315 nt (T → C) downstream of initiation codon. We then metabolically engineered isobutanol synthesis in strains harbouring plasmids YCplac22 containing these Spt15 mutations. Delta integration was used to overexpress ILV3 gene, and 2μ plasmids carrying PGK1p-ILV2 and PGK1p-ARO10 were used to overexpress ILV2 and ARO10 genes. After 24-h micro-aerobic fermentation, Engi-3 produced 0·556 g l-1 isobutanol, which was 404% and 25·3% greater than isobutanol produced by control Engi-1 and engineered Engi-2, respectively. After 28 h, Engi-4 produced 0·459 g l-1 isobutanol, which was 315% and 3·2% greater than isobutanol produced Engi-1 and Engi-2, respectively. RNA-Seq-based transcriptome analysis shows that mutations of Spt15 in strain spt15-3 increased the expression of SPT15. Meanwhile, compared with strain Engi-3, the spt15-3 mutation downregulated the expression of genes involved in the TCA cycle and glyoxylic acid cycle, but increased the expression of genes related to cell stability. This work demonstrates that isobutanol tolerance and production of S. cerevisiae can be improved by engineering its TATA-binding protein Spt15. This study clarified the molecular mechanisms regulating isobutanol production and tolerance in S. cerevisiae.
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Affiliation(s)
- W Zhang
- School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin, China
| | - W Shao
- School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin, China
| | - A Zhang
- School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin, China
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Zhou J, Wu JS, Yan Y, Li J, Ni T, Shao W, Mei JH, Xiong WZ, Wu H. MiR-199a modulates autophagy and inflammation in rats with cerebral infarction via regulating mTOR expression. Eur Rev Med Pharmacol Sci 2021; 24:6338-6345. [PMID: 32572931 DOI: 10.26355/eurrev_202006_21532] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE The aim of this study was to investigate the roles of micro ribonucleic acid (miR)-199a in rats with cerebral infarction by regulating mammalian target of rapamycin (mTOR). MATERIALS AND METHODS A total of 36 Sprague-Dawley rats were randomly assigned into three groups, including: sham group (n=12), model group (n=12) and miR-199a mimics group (n=12). In sham group internal and external carotid arteries were exposed. The ischemia-reperfusion model was successfully established using suture embolization in the other two groups. After modeling, rats in sham group and model group were intraperitoneally injected with normal saline. However, rats in miR-199a mimics group were injected with miR-199a mimics. Following intervention for 3 d, sampling was conducted. Neurological deficit was evaluated in rats based on the Zea-Longa scoring system. Hematoxylin-eosin (HE) staining was performed to observe neuronal morphology. The expression of mTOR was detected using immunohistochemistry, and the relative expression level of tau protein was determined via Western blotting (WB). Besides, the messenger RNA (mRNA) expressions of mTOR and tau were detected by quantitative Polymerase Chain Reaction (qPCR). Finally, inflammatory factor content was measured through enzyme-linked immunosorbent assay (ELISA). RESULTS Model group and miR-199a mimics group exhibited a substantially higher Zea-Longa score than sham group (p<0.05). Compared with model group, the Zea-Longa score rose prominently in miR-199a mimics group (p<0.05). According to the results of HE staining, the structure of neurons in sham group was clear and intact, while the structure of neurons in model group was disordered. Meanwhile, neuronal morphology in miR-199a mimics group was significantly worse than that in model group (p<0.05). Immunohistochemistry results demonstrated that the positive expression level of mTOR was considerably upregulated in both model group and miR-199a mimics group in comparison with sham group (p<0.05). Moreover, its positive expression level in miR-199a mimics group was markedly higher that in model group (p<0.05). Based on the results of WB, model and miR-199a mimics groups exhibited a remarkably higher relative expression level of tau protein than sham group (p<0.05). However, the relative expression level of tau protein in miR-199a mimics group was prominently higher than that in model group (p<0.05). QPCR results manifested that the relative mRNA expression levels of mTOR and tau in model group and miR-199a mimics group were dramatically higher than those in sham group (p<0.05). Compared with those in model group, the relative mRNA expression levels of mTOR and tau increased significantly in miR-199a mimics group (p<0.05). ELISA results revealed that model group and miR-199a mimics group had prominently higher content of inflammatory factors than sham group (p<0.05). In addition, content of inflammatory factors in miR-199a mimics group was considerably higher than that in model group (p<0.05). CONCLUSIONS MiR-199a modulates mTOR expression to exert important regulatory effects on the autophagy and inflammation in rats with cerebral infarction.
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Affiliation(s)
- J Zhou
- Department of Internal Medicine, Wuhan Hospital of Traditional Chinese Medicine, Wuhan, China.
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Luo H, Guan Q, Pan N, Wang Q, Li H, Lin J, Tan Z, Shao W. Using composite fingerprints to quantify the potential dust source contributions in northwest China. Sci Total Environ 2020; 742:140560. [PMID: 32721727 DOI: 10.1016/j.scitotenv.2020.140560] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/23/2020] [Revised: 06/23/2020] [Accepted: 06/25/2020] [Indexed: 06/11/2023]
Abstract
Dust storms have a profound impact on the atmospheric environment, global climate change, and human health, so it is of great importance to strengthen related research. The main areas of occurrence and frequency of dust storms in northwestern China were distinguished by measuring the concentration of geochemical elements in the topsoil and atmospheric dust samples, combined with the HYSPLIT backward trajectory model, MODIS true-color satellite images, and PM10 real-time monitoring data. On this basis, the composite fingerprints method was used to establish an end-member model between the concentration of dust storm samples and topsoil samples, and then to trace the sand and dust sources in northwest China and quantify their source contributions. The results showed that the main potential source areas causing sandstorms were located in the Kumtag Desert, Hexi area, and the Gobi Desert in the central and western parts of Inner Mongolia. Overall, the contributions from natural sources were greater than those from anthropogenic sources, especially at Alxa League. In addition to natural sources, anthropogenic dust sources contributed highly to dust storms, with a contribution rate of approximately 40% in cities. The main dust source in Zhangye City was from agriculture areas. The contribution of the potential dust sources in the west of the study area showed a decreasing trend from west to east because of the distance effect. Because of the influence of the prevailing westerly winds in the east, the sources of dust were relatively extensive. The Badain Jaran Desert and Tengger Desert were not the main dust sources in the study area because of artificial sand control measures and the low amounts of fine-grained components in sandy deserts. These methods and results are of great importance for sustainable development in northwest China.
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Affiliation(s)
- Haiping Luo
- Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, China
| | - Qingyu Guan
- Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, China.
| | - Ninghui Pan
- Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, China
| | - Qingzheng Wang
- Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, China
| | - Huichun Li
- Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, China
| | - Jinkuo Lin
- Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, China
| | - Zhe Tan
- Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, China
| | - Wenyan Shao
- Gansu Key Laboratory for Environmental Pollution Prediction and Control, College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, China
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Zhang JZ, Qu LY, Wu L, Yi XN, Wang KY, Shao W, Huang SY. [Effect and underling mechanism of 6% hydroxyethyl starch 130/0.4 on serum albumen in trauma orthopedic patients during operation]. Zhonghua Yi Xue Za Zhi 2020; 100:2138-2143. [PMID: 32689756 DOI: 10.3760/cma.j.cn112137-20191114-02475] [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] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the effect of 6% hydroxyethyl starch 130/0.4(HES) on protein in severe trauma orthopedic patients after acute hemodilution. Methods: Fourty-eight severe trauma patients who met the inclusion criteria were selected from June 2018 to December 2018 in Yantaishan Hospital, and were randomly divided into two groups (n=24): group A and group B. Group A was ringer's sodium lactate control group, and group B was HES treatment group. After the tracheal intubation, the patients of group A were infused with 10% blood volume of sodium lactate ringer at 0.5 ml·kg(-1)·min(-1), and the patients in group B were infused with 10% blood volume of HES at 0.5 ml·kg(-1)·min(-1). Total protein (TP), human serum albumin (HSA), numbers of circulating endothelium cells (CEC), C-reactive protein (CRP), and serum levels of tumor necrosis factor-alpha (TNF-α), interleukin (IL)-10 and IL-6 were measured immediately after acute hemodilution (T(0)), 24 hours (T(1)) and 48 hours (T(2)) after acute hemodilution. After infusion into human body, HES bond to HSA, and fluorescence spectroscopy was used to analyze the binding relationship between HES and HSA in order to further study the effects of HES on HSA. Results: The HSA, TP, CEC, TNF-α, IL-6, IL-10, CRP at T(0) of group A were (38±5) g/L, (66±5) g/L, (5.5±0.4)/0.9 μl, (24±5) μg/L, (8.9±0.8) μg/L, (44±6) μg/L, (13.6±1.4) mg/L; While at T(1) were (33±5) g/L, (60±6) g/L, (10.2±0.7)/0.9 μl, (87±9) μg/L, (38.8±2.3) μg/L, (57±7) μg/L, (23.4±2.4) mg/L. The HSA, TP, CEC, TNF-α, IL-6, IL-10, CRP at T(0) of group B were(38±4)g/L, (66±5) g/L, (5.4±0.6)/0.9 μl, (24±6) μg/L, (9.1±0.9) μg/L, (45±6) μg/L, (13.4±1.8) mg/L; While at T(1) were (35±5)g/L, (62±5)g/L, (7.4±0.6)/0.9 μl, (70±8) μg/L, (29.5±3.1) μg/L, (72±6) μg/L, (19.7±2.2) mg/L. HSA and TP decreased at T(1) in group A as compared with T(0) (P<0.05), contrarily CEC increased significantly at T(1), TNF-ɑ, IL-6, IL-10 and CRP augmented at T(1) and T(2) in two groups (P<0.05). In comparison with the patients of group A, CEC decreased significantly at T(1) (P<0.05). TNF-ɑ, IL-6, CRP reduced significantly at T(1) and T(2) (P<0.05), but IL-10 increased at T(1) and T(2) in group B (P<0.05). The secondary structure of HSA changed after HES was added in the HES solution. The fluorescence intensity of HSA decreased with the increase of HES concentration,which suggested that HES induced HSA fluorescence quenching. HES could bind to Trp-214 residue in HSA at a molecular ration of 1∶1. Conclusions: 6% HES reduces the occurrence of low protein level in severe trauma patients after operation. HES could bind to Trp-214 amino acid residue in HSA and form the complex at a molecular ratio of 1∶1. The formation of HES-HSA complex increases the volume of HES, avoids the vascular leakage, protects the vascular endothelial cells, and induces anti-inflammatory immunity in the patients with capillary syndrome.
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Affiliation(s)
- J Z Zhang
- Department of Anesthesiology, Yantaishan Hospital, Yantai 264008, China
| | - L Y Qu
- Department of Anesthesiology, Yantaishan Hospital, Yantai 264008, China
| | - L Wu
- Department of Anesthesiology, Yantaishan Hospital, Yantai 264008, China
| | - X N Yi
- Department of Anesthesiology, Yantaishan Hospital, Yantai 264008, China
| | - K Y Wang
- Department of Anesthesiology, Yantaishan Hospital, Yantai 264008, China
| | - W Shao
- Department of Anesthesiology, Yantaishan Hospital, Yantai 264008, China
| | - S Y Huang
- Department of Oncology, Yantaishan Hospital, Yantai 264008, China
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Zhang R, Zhu JC, Hu H, Lin QY, Shao W, Ji TH. MicroRNA-140-5p suppresses invasion and proliferation of glioma cells by targeting glutamate-ammonia ligase (GLUL). Neoplasma 2020; 67:371-378. [PMID: 31986891 DOI: 10.4149/neo_2020_190514n432] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2019] [Accepted: 08/26/2019] [Indexed: 11/08/2022]
Abstract
Glutamine addiction is a major feature of glioma cells and plays an important role in its growth and proliferation. GLUL (glutamate-ammonia ligase), which catalyzes glutamate and ammonia to synthesize glutamine, plays a crucial role in tumor growth and proliferation. We attempt to determine a pathway that limits the growth of glioma by targeting GLUL and explore effective strategies blocking glutamine metabolism. We note that miRNAs mediate regulation of genes participating directly or indirectly in cancer cell metabolism. The regulatory roles of miRNAs on metabolic enzymes are widely discussed, however miRNAs regulation of glutamine metabolism by targeting GLUL in glioma has not yet been reported. Here, we examined both the expression and functions of GLUL in glioma cells. Findings indicated that the expression of GLUL was upregulated in high-grade compared to low-grade glioma cells. Knockdown of GLUL effectively inhibited proliferation, migration and invasion of glioma cells in vitro. Bioinformatics analyses, as well as dual-luciferase reporter assays, revealed that miR-140-5p bound to GLUL mRNA at the 3'-UTR location. Furthermore, the proliferation, migration and invasion of glioma cells were also repressed by miR-140-5p. Overall, these results showed that miR-140-5p exerted its inhibitory effects on proliferation, migration and invasion in glioma cells through downregulating GLUL. Thus, the miR-140-5p/GLUL axis may function as a potential target for glioma treatment.
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Affiliation(s)
- R Zhang
- Chinese People's Liberation Army No. 174 Clinical College, Anhui Medical University, Xiamen, China
| | - J C Zhu
- Chinese People's Liberation Army No. 174 Clinical College, Anhui Medical University, Xiamen, China
| | - H Hu
- Department of Pathology, Air Force Hospital of Southern Theater Command, Guangzhou, China
| | - Q Y Lin
- Department of Pathology, Affiliated Chenggong Hospital, Xiamen University, Xiamen, China
| | - W Shao
- Department of Pathology, Affiliated Chenggong Hospital, Xiamen University, Xiamen, China
| | - T H Ji
- Chinese People's Liberation Army No. 174 Clinical College, Anhui Medical University, Xiamen, China.,Department of Pathology, Affiliated Chenggong Hospital, Xiamen University, Xiamen, China
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Li J, Hu HP, Li Y, Shao W, Zhang JZ, Wang LM. Influences of remifentanil on myocardial ischemia-reperfusion injury and the expressions of Bax and Bcl-2 in rats. Eur Rev Med Pharmacol Sci 2020; 22:8951-8960. [PMID: 30575939 DOI: 10.26355/eurrev_201812_16665] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE To investigate the influences of remifentanil on myocardial ischemia-reperfusion injury in rats and the expressions of b-cell lymphoma 2 (Bcl-2), Bcl-2-associated X protein (Bax) and other apoptosis-related proteins. MATERIALS AND METHODS A total of 60 Sprague-Dawley (SD) rats were randomly divided into sham operation (S) group, model (M) group, low-dose remifentanil (L) group and high-dose remifentanil (H) group, with 15 rats in each group. The rat model of myocardial ischemia-reperfusion injury was established by the ligation of the left anterior descending branch (LAD). After ischemia for 30 min and reperfusion for 24 h, the cardiac function of rats in each group was measured by an ultrasonic instrument. Triphenyl tetrazolium chloride (TTC) staining was used to detect the myocardial infarction area of rats in each group. The activity of myocardial enzymes in the serum of rats in each group was detected. Terminal deoxynucleotidyl transferase dUTP nick end labeling (TUNEL) staining was adopted to examine the apoptosis level of rat cardiomyocytes in each group. Quantitative polymerase chain reaction (qPCR) and Western blotting were applied to detect the expression levels of apoptosis-related proteins and messenger ribonucleic acids (mRNAs) in rat cardiomyocytes in each group. RESULTS Compared with those in S group, left ventricular internal dimension in systole (LVIDs) and left ventricular internal dimension in diastole (LVIDd) were markedly increased (p<0.01), while left ventricular ejection fraction (LVEF) and left ventricular fractional shortening (LVFS) were notably decreased in M group (p<0.01). LVIDs and LVIDd in L group and H group were lower than those in M group (p<0.05, p<0.01), whereas LVEF and LVFS were higher than those in M group (p<0.05, p<0.01). The myocardial infarction area in M group was significantly larger than that in S group (p<0.01), and those in L group and H group were remarkably smaller than that in M group (p<0.05, p<0.01). The activities of aspartate aminotransferase (AST), lactate dehydrogenase (LDH) and creatine kinase-muscle/brain (CK-MB) in the serum of rats in M group were evidently higher than those in S group (p<0.01), and compared with those in M group, those in L group and H group were significantly decreased (p<0.05, p<0.01). The apoptosis level of myocardial cells in M group was significantly higher than that in S group (p<0.01), while those in L group and H group were markedly lower than that in M group (p<0.05, p<0.01). Compared with those in S group, the expression levels of cleaved caspase-3 and its mRNAs in myocardial cells in M group were remarkably increased (p<0.01), while those of Bcl-2/Bax and it mRNAs were significantly decreased (p<0.01). The expression levels of cleaved caspase-3 and its mRNAs in myocardial cells in L group and H group were significantly lower than those in M group (p<0.05, p<0.01), but those of Bcl-2/Bax and its mRNAs were significantly higher than those in M group (p<0.05, p<0.01). CONCLUSIONS Remifentanil can effectively reduce myocardial cell injury caused by myocardial ischemia-reperfusion in rats, improve cardiac function, reduce the myocardial infarction area, decrease cleaved caspase-3 in myocardial cells, and increase Bcl-2/Bax.
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Affiliation(s)
- J Li
- Department of Anesthesiology, Yantai Yantaishan Hospital, Yantai, China.
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Shao W, Shan J, Hu W, Halvas E, Mellors J, Coffin J, Kearney M. Updates on two public databases for studies of HIV persistence; the Retrovirus Integration Database (RID) and HIV Proviral Sequence Database (PSD). J Virus Erad 2019. [DOI: 10.1016/s2055-6640(20)30103-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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Bozzi G, Simonetti FR, Watters SA, Anderson EM, Gouzoulis M, Kearney MF, Rote P, Lange C, Shao W, Gorelick R, Fullmer B, Kumar S, Wank S, Hewitt S, Kleiner DE, Hattori J, Bale MJ, Hill S, Bell J, Rehm C, Grossman Z, Yarchoan R, Uldrick T, Maldarelli F. No evidence of ongoing HIV replication or compartmentalization in tissues during combination antiretroviral therapy: Implications for HIV eradication. Sci Adv 2019; 5:eaav2045. [PMID: 31579817 PMCID: PMC6760922 DOI: 10.1126/sciadv.aav2045] [Citation(s) in RCA: 52] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/23/2018] [Accepted: 08/29/2019] [Indexed: 05/28/2023]
Abstract
HIV persistence during combination antiretroviral therapy (cART) is the principal obstacle to cure. Mechanisms responsible for persistence remain uncertain; infections may be maintained by persistence and clonal expansion of infected cells or by ongoing replication in anatomic locations with poor antiretroviral penetration. These mechanisms require different strategies for eradication, and determining their contributions to HIV persistence is essential. We used phylogenetic approaches to investigate, at the DNA level, HIV populations in blood, lymphoid, and other infected tissues obtained at colonoscopy or autopsy in individuals who were on cART for 8 to 16 years. We found no evidence of ongoing replication or compartmentalization of HIV; we did detect clonal expansion of infected cells that were present before cART. Long-term persistence, and not ongoing replication, is primarily responsible for maintaining HIV. HIV-infected cells present when cART is initiated represent the only identifiable source of persistence and is the appropriate focus for eradication.
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Affiliation(s)
- G. Bozzi
- HIV Dynamics and Replication Program, NCI, NIH, Frederick, MD, USA
- Department of Biomedical and Clinical Sciences, L. Sacco Hospital, University of Milan, Milan, Italy
| | - F. R. Simonetti
- HIV Dynamics and Replication Program, NCI, NIH, Frederick, MD, USA
- Department of Biomedical and Clinical Sciences, L. Sacco Hospital, University of Milan, Milan, Italy
| | - S. A. Watters
- HIV Dynamics and Replication Program, NCI, NIH, Frederick, MD, USA
- Department of Infection and Immunity, University College London, London, UK
| | - E. M. Anderson
- HIV Dynamics and Replication Program, NCI, NIH, Frederick, MD, USA
| | - M. Gouzoulis
- HIV Dynamics and Replication Program, NCI, NIH, Frederick, MD, USA
| | - M. F. Kearney
- HIV Dynamics and Replication Program, NCI, NIH, Frederick, MD, USA
| | - P. Rote
- HIV Dynamics and Replication Program, NCI, NIH, Frederick, MD, USA
| | - C. Lange
- HIV Dynamics and Replication Program, NCI, NIH, Frederick, MD, USA
| | - W. Shao
- Advanced Biomedical Computing Center, Leidos Biomedical Research Inc., Frederick National Laboratory for Cancer Research, Frederick, MD, USA
| | - R. Gorelick
- AIDS and Cancer Virus Program, Frederick National Laboratory for Cancer Research, Frederick, MD, USA
| | - B. Fullmer
- AIDS and Cancer Virus Program, Frederick National Laboratory for Cancer Research, Frederick, MD, USA
| | - S. Kumar
- Digestive Diseases Branch, NIDDK, NIH, Bethesda, MD, USA
| | - S. Wank
- Digestive Diseases Branch, NIDDK, NIH, Bethesda, MD, USA
| | - S. Hewitt
- Laboratory of Pathology, NCI, NIH, Bethesda, MD, USA
| | - D. E. Kleiner
- Laboratory of Pathology, NCI, NIH, Bethesda, MD, USA
- Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - J. Hattori
- HIV Dynamics and Replication Program, NCI, NIH, Frederick, MD, USA
| | - M. J. Bale
- HIV Dynamics and Replication Program, NCI, NIH, Frederick, MD, USA
| | - S. Hill
- HIV Dynamics and Replication Program, NCI, NIH, Frederick, MD, USA
| | - J. Bell
- HIV Dynamics and Replication Program, NCI, NIH, Frederick, MD, USA
| | - C. Rehm
- Laboratory of Immunoregulation, NIAID, NIH, Bethesda, MD, USA
| | - Z. Grossman
- HIV Dynamics and Replication Program, NCI, NIH, Frederick, MD, USA
| | - R. Yarchoan
- HIV and AIDS Malignancy Branch, NCI, NIH, Bethesda, MD, USA
| | - T. Uldrick
- HIV and AIDS Malignancy Branch, NCI, NIH, Bethesda, MD, USA
| | - F. Maldarelli
- HIV Dynamics and Replication Program, NCI, NIH, Frederick, MD, USA
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Shao W, Kuhn C, Mayr D, Ditsch N, Mahner S, Harbeck N, Cavaillès V, Jeschke U, Sixou S. Untersuchungen zur differenzierten Expression von PPARγ, Cox-1 und Cox-2 beim Mammakarzinom. Geburtshilfe Frauenheilkd 2019. [DOI: 10.1055/s-0039-1693862] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022] Open
Affiliation(s)
- W Shao
- Klinikum der Ludwig-Maximilians-Universität München, Klinik und Poliklinik für Frauenheilkunde und Geburtshilfe, München, Deutschland
| | - C Kuhn
- Klinikum der Ludwig-Maximilians-Universität München, Klinik und Poliklinik für Frauenheilkunde und Geburtshilfe, München, Deutschland
| | - D Mayr
- Ludwig-Maximilians-Universität München, Pathologisches Institut, München, Deutschland
| | - N Ditsch
- Klinikum der Ludwig-Maximilians-Universität München, Klinik und Poliklinik für Frauenheilkunde und Geburtshilfe, München, Deutschland
| | - S Mahner
- Klinikum der Ludwig-Maximilians-Universität München, Klinik und Poliklinik für Frauenheilkunde und Geburtshilfe, München, Deutschland
| | - N Harbeck
- Klinikum der Ludwig-Maximilians-Universität München, Klinik und Poliklinik für Frauenheilkunde und Geburtshilfe, München, Deutschland
| | - V Cavaillès
- IRCM, Institut de Recherche en Cancérologie de Montpellier, Montpellier, France; Université de Montpellier, France; Institut régional du Cancer de Montpellier, France
| | - U Jeschke
- Klinikum der Ludwig-Maximilians-Universität München, Klinik und Poliklinik für Frauenheilkunde und Geburtshilfe, München, Deutschland
| | - S Sixou
- Klinikum der Ludwig-Maximilians-Universität München, Klinik und Poliklinik für Frauenheilkunde und Geburtshilfe, München, Deutschland
- Faculté des Sciences Pharmaceutiques, Université Paul Sabatier Toulouse III, Toulouse, France; Cholesterol Metabolism and Therapeutic Innovations, Cancer Research Center of Toulouse (CRCT), Université de Toulouse, CNRS, Toulouse, France
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21
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Shao W, Ebaid R, El-Sheekh M, Abomohra A, Eladel H. Pharmaceutical applications and consequent environmental impacts of Spirulina (Arthrospira): An overview. Grasas y Aceites 2019. [DOI: 10.3989/gya.0690181] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Recently, microalgae cultivation for different applications, including the production of nutritional and pharmaceutical active compounds has received increasing attention. Among the different genera, Spirulina (Arthrospira sp.) is one of the most promising blue-green microalgae (Cyanophyta) because it is rich in antioxidants, essential amino acids (EAAs), minerals, proteins, polyunsaturated fatty acids and vitamins. It has a high protein content (60-70% of the dry weight), which is a complete protein, i.e. containing all EAAs. Therefore, Spirulina is currently a commercial product with high nutritional value and also a significant source of complementary and alternative medicine. The objective of the present work was to review the pharmaceutical and therapeutic applications of Spirulina, especially its antioxidant, anti-inflammatory, anti-cancer, anti-microbial, anti-diabetic, anti-obesity and anti-toxicity properties. The results were obtained from experiments in the literature performed in vitro and in vivo using experimental animals. The main reported active ingredients in Spirulina include phycocyanin, tocopherol, β-carotene, caffeic acids and chlorogenic acid, which showed individual or synergetic effects. In addition, the present review discusses the future perspectives of genetically modified Spirulina as a source for industrial products while producing valuable biomass photoautotrophically. Furthermore, the consequent environmental impacts of large-scale cultivation of Spirulina are discussed.
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Shao W, Li X, Zhang J, Yang C, Tao W, Zhang S, Zhang Z, Peng D. White matter integrity disruption in the pre-dementia stages of Alzheimer's disease: from subjective memory impairment to amnestic mild cognitive impairment. Eur J Neurol 2019; 26:800-807. [PMID: 30584694 DOI: 10.1111/ene.13892] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2018] [Accepted: 12/18/2018] [Indexed: 12/11/2022]
Abstract
BACKGROUND AND PURPOSE Subjective memory impairment (SMI) and amnestic mild cognitive impairment (aMCI) are thought to represent the pre-dementia stages of Alzheimer's disease (AD). SMI is considered a more advanced pre-clinical status prior to aMCI. Understanding the neuromechanism of SMI will have great benefits for monitoring the disease progression of AD. The study aims to explore whether SMI shows alterations of white matter (WM) integrity similar to the patterns of aMCI. METHODS The atlas-based analyses were performed to investigate the diffusion changes in the major WM tracts amongst 22 individuals with normal cognition (NC), 22 SMI patients and 25 aMCI patients. The correlations between the altered diffusion metrics and cognitive performance in the SMI and aMCI groups were assessed. RESULTS The diffusion tensor metrics of SMI were intermediate between the NC and aMCI groups. The aMCI group presented disrupted integrity in multiple WM tracts, including the left anterior thalamic radiation, right corticospinal tract and left cingulum of the hippocampus (CgH), compared to the NC group. The left CgH showed diffusion alterations in the SMI group. In the aMCI group, the mean diffusivity of the left CgH was negatively correlated with episodic memory, whilst the radial diffusivity of the right corticospinal tract was negatively correlated with executive function. No significant relationship was found in the SMI group. CONCLUSION The study suggested that SMI patients might present detectable WM integrity changes in the left CgH before exhibiting objective cognitive dysfunction, which may provide novel insights into the pathological mechanisms of AD.
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Affiliation(s)
- W Shao
- Department of Neurology, China-Japan Friendship Hospital, Beijing, China.,Graduate School of Peking Union Medical College, Beijing, China
| | - X Li
- State Key Laboratory of Cognitive Neuroscience and Learning and IDG/McGovern Institute for Brain Research, Beijing Normal University, Beijing, China.,BABRI Centre, Beijing Normal University, Beijing, China
| | - J Zhang
- State Key Laboratory of Cognitive Neuroscience and Learning and IDG/McGovern Institute for Brain Research, Beijing Normal University, Beijing, China.,BABRI Centre, Beijing Normal University, Beijing, China
| | - C Yang
- State Key Laboratory of Cognitive Neuroscience and Learning and IDG/McGovern Institute for Brain Research, Beijing Normal University, Beijing, China.,BABRI Centre, Beijing Normal University, Beijing, China
| | - W Tao
- State Key Laboratory of Cognitive Neuroscience and Learning and IDG/McGovern Institute for Brain Research, Beijing Normal University, Beijing, China.,BABRI Centre, Beijing Normal University, Beijing, China
| | - S Zhang
- Department of Neurology, China-Japan Friendship Hospital, Beijing, China.,Peking University China-Japan Friendship School of Clinical Medicine, Beijing, China
| | - Z Zhang
- State Key Laboratory of Cognitive Neuroscience and Learning and IDG/McGovern Institute for Brain Research, Beijing Normal University, Beijing, China.,BABRI Centre, Beijing Normal University, Beijing, China
| | - D Peng
- Department of Neurology, China-Japan Friendship Hospital, Beijing, China.,Graduate School of Peking Union Medical College, Beijing, China.,Peking University China-Japan Friendship School of Clinical Medicine, Beijing, China
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Cai K, Shao W, Chen X, Campbell YL, Nair MN, Suman SP, Beach CM, Guyton MC, Schilling MW. Meat quality traits and proteome profile of woody broiler breast (pectoralis major) meat. Poult Sci 2018; 97:337-346. [PMID: 29053841 DOI: 10.3382/ps/pex284] [Citation(s) in RCA: 78] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2017] [Accepted: 09/07/2017] [Indexed: 01/03/2023] Open
Abstract
Woody breast meat has recently become prevalent in the broiler industry in both the United States and European Union. Recent publications have described the meat quality characteristics of woody breast meat as having hardened areas and pale ridge-like bulges at both the caudal and cranial regions of the breast. The present study investigated the meat quality (pH, color, cooking loss, and shear force) and protein quality characteristics (protein and salt-soluble protein content) in woody breast meat as compared to normal breast meat. In addition, the differences in the muscle proteome profiles of woody and normal breast meat were characterized. Results indicated that woody breast meat had a greater average pH (P < 0.0001) and cooking loss (P = 0.001) than normal breast meat, but woody breast meat did not differ in shear force (P > 0.05) in comparison to normal breast meat samples. The L*, a*, and b* values of woody breast fillets were greater than normal breast fillets (P < 0.0001 to L*; P = 0.002 to a*; P = 0.016 to b*). The woody breast meat had more fat (P < 0.0001) and moisture (P < 0.021) and less protein (P < 0.0001) and salt-soluble protein (P < 0.0001) when compared with normal breast fillets. Whole muscle proteome analysis indicated 8 proteins that were differentially expressed (P < 0.05) between normal and woody breast meat samples. The differences in muscle proteome between normal and woody breast meat indicated an increased oxidative stress in woody breast meat when compared to normal meat. In addition, the abundance of some glycolytic enzymes, which are critical to the regeneration of adenosine triphosphate (ATP) in postmortem muscles, was lower in woody breast meat than in normal breast meat. Proteomic differences provide additional information on the biochemical pathways and genetic variations that lead to woody breast meat. Further research should be conducted to elucidate the genetic and nutritional contributions to the proliferation of woody breast meat in the United States.
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Affiliation(s)
- K Cai
- School of Food Science and Engineering, Hefei University of Technology, Hefei, 230009 PRA
| | - W Shao
- Department of Food Science, Nutrition, and Health Promotion, Mississippi State University, Mississippi State 39762
| | - X Chen
- Department of Poultry Science, Mississippi State University, Mississippi State 39762
| | - Y L Campbell
- Department of Food Science, Nutrition, and Health Promotion, Mississippi State University, Mississippi State 39762
| | - M N Nair
- Department of Animal and Food Sciences, University of Kentucky, Lexington 40546
| | - S P Suman
- Department of Animal and Food Sciences, University of Kentucky, Lexington 40546
| | - C M Beach
- Proteomics Core Facility, University of Kentucky, Lexington 40506
| | - M C Guyton
- Department of Food Science, Nutrition, and Health Promotion, Mississippi State University, Mississippi State 39762
| | - M W Schilling
- Department of Food Science, Nutrition, and Health Promotion, Mississippi State University, Mississippi State 39762
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Shao W, Hofmann S, Kuhn C, Harbeck N, Jeschke U, Sixou S. Untersuchungen zur Expression von PPARγ und Cox-1 in 8 Brustkrebszelllinien. Geburtshilfe Frauenheilkd 2018. [DOI: 10.1055/s-0038-1655513] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022] Open
Affiliation(s)
- W Shao
- Brustzentrum der Universität München, Klinik und Poliklinik für Frauenheilkunde und Geburtshilfe, Campus Innenstadt, Klinikum der Ludwig-Maximilians-Universität, Maistraße 11, 80337 München, Germany
| | - S Hofmann
- Brustzentrum der Universität München, Klinik und Poliklinik für Frauenheilkunde und Geburtshilfe, Campus Innenstadt, Klinikum der Ludwig-Maximilians-Universität, Maistraße 11, 80337 München, Germany
| | - C Kuhn
- Brustzentrum der Universität München, Klinik und Poliklinik für Frauenheilkunde und Geburtshilfe, Campus Innenstadt, Klinikum der Ludwig-Maximilians-Universität, Maistraße 11, 80337 München, Germany
| | - N Harbeck
- Brustzentrum der Universität München, Klinik und Poliklinik für Frauenheilkunde und Geburtshilfe, Campus Innenstadt, Klinikum der Ludwig-Maximilians-Universität, Maistraße 11, 80337 München, Germany
| | - U Jeschke
- Brustzentrum der Universität München, Klinik und Poliklinik für Frauenheilkunde und Geburtshilfe, Campus Innenstadt, Klinikum der Ludwig-Maximilians-Universität, Maistraße 11, 80337 München, Germany
| | - S Sixou
- Brustzentrum der Universität München, Klinik und Poliklinik für Frauenheilkunde und Geburtshilfe, Campus Innenstadt, Klinikum der Ludwig-Maximilians-Universität, Maistraße 11, 80337 München, Germany
- Université Paul Sabatier Toulouse III, Faculté des Sciences Pharmaceutiques, 31062 Toulouse cedex 09, France
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Wang CH, Luo J, Li J, Zhang JZ, Huang SY, Shao W, Ma HS. Efficacy of inhalational sevoflurane anesthesia induction on inhibiting the stress response to endotracheal intubation in children with congenital heart disease. Eur Rev Med Pharmacol Sci 2018; 22:1113-1117. [PMID: 29509264 DOI: 10.26355/eurrev_201802_14399] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE To investigate the efficacy of inhalational sevoflurane anesthesia induction on inhibiting the stress response to endotracheal intubation in pediatric patients with congenital heart disease (CHD). PATIENTS AND METHODS Forty ASA physical status I/II pediatric patients scheduled for interventricular septal defect repair or interatrial septal defect repair, were randomly divided into two groups (20 each): intravenous induction group (Group C) and inhalational sevoflurane anesthesia induction group (Group D). In group C, anesthesia was induced with midazolam, pipecuronium bromide and fentanyl, and the children were examined by radial artery monitoring after the consciousness extinction. Also, they were endotracheally intubated after muscle relaxation. In group D, anesthesia was induced with inhalation of 8% sevoflurane and 6 L/min oxygen, and the children were examined by radial artery monitoring after the consciousness extinction and were endotracheally intubated 4 min later. Before anesthesia induction (T0), consciousness extinction (T1), endotracheal intubation (T2), endotracheal intubation (T3), and after endotracheal intubation (T4), 1 and 3 min after intratracheal intubation (T5,6), HR and bispectral index (BIS) were monitored. The MAP of T2-T6 points was recorded. Ulnar vein blood samples were taken for determination of Endothelin (ET) and Thromboxane A2(TXA2) in the points of consciousness extinction, and 5 and 10 min after endotracheal. RESULTS All the children were well examined by endotracheal intubation. Compared with the baseline value at T0, there was no significant difference of HR in group D, but the HR of group C was decreased at T2, T3, T4 and T6. The BIS of the two groups were decreased at T1-T6 (p<0.05). Compared with the values at T2, they were increased at T5 and T6 in group C, and increased at T6 in group D (p<0.05). Compared with group C, the MAP of group D was decreased at T5, and the BIS of the two groups was decreased at T2-T6 (p<0.05). There were no significant differences of ET and TXA2 between groups. CONCLUSIONS It is well inhibited the endotracheal intubation stress response in children with congenital heart diseases using sevoflurane inhalational anesthesia induction.
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Affiliation(s)
- C-H Wang
- Department of Anesthesiology, Yantaishan Hospital, Yantai, Shandong Province, China.
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Lee E, von Stockenstrom S, Morcilla V, Shao W, Hartogensis W, Bacchetti P, Milush J, Hoh R, Somsouk M, Hunt P, Fromentin R, Chomont N, Deeks S, Hecht F, Palmer S. The impact of ART duration on the infection of T cells within anatomic sites. J Virus Erad 2017. [DOI: 10.1016/s2055-6640(20)30530-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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Shao W, Duan Y, Liang N, Zhou X, Fang Y, Sun S. Clinical observation on effect of auto-CPAP on blood pressure in obese OSA patients. Sleep Med 2017. [DOI: 10.1016/j.sleep.2017.11.892] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Shao W, Ji T, To ST. P08.53 CRISPR/Cas9 knockout of PI3K delta confirms its role in glioma cell migration and invasion. Neuro Oncol 2017. [DOI: 10.1093/neuonc/nox036.242] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Winckelmann A, Barton K, Hiener B, Shao W, Østergaard L, Rasmussen T, Søgaard O, Tolstrup M, Palmer S. A5 Peripheral blood cells contribute to HIV-1 viremia induced by romidepsin. Virus Evol 2017; 3:vew036.004. [PMID: 28845251 PMCID: PMC5565934 DOI: 10.1093/ve/vew036.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- A Winckelmann
- Department of Infectious Diseases, Aarhus University Hospital, Aarhus, Denmark
| | - K Barton
- The Westmead Institute for Medical Research, University of Sydney, Westmead, Australia
| | - B Hiener
- The Westmead Institute for Medical Research, University of Sydney, Westmead, Australia
| | - W Shao
- Leidos Biomedical Research, Inc., Advanced Biomedical Computing Center, Reston, VA, USA
| | - L Østergaard
- Department of Infectious Diseases, Aarhus University Hospital, Aarhus, Denmark
| | - T Rasmussen
- Department of Infectious Diseases, Aarhus University Hospital, Aarhus, Denmark
| | - O Søgaard
- Department of Infectious Diseases, Aarhus University Hospital, Aarhus, Denmark
| | - M Tolstrup
- Department of Infectious Diseases, Aarhus University Hospital, Aarhus, Denmark
| | - S Palmer
- The Westmead Institute for Medical Research, University of Sydney, Westmead, Australia
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Cai K, Desai M, Shao W, Chen X, Campbell YL, Nair M, Suman SP, Schilling MW. Quality Characteristics of Normal and Woody Breast Meat. Meat and Muscle Biology 2017. [DOI: 10.22175/rmc2016.073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
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31
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Qi X, Wang J, Gomez C, Xu X, Shao W, King C, Low D, Steinberg M, Kupelian P. Patient-Reported Outcome After Prostate Stereotactic Body Radiation Therapy—An Analysis of Dosimetric Correlation of Minimally Import Difference for the Expanded Prostate Cancer Index Composite Short Form (EIPIC-26). Int J Radiat Oncol Biol Phys 2016. [DOI: 10.1016/j.ijrobp.2016.06.1196] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Lee E, Hiener B, Bacchetti P, Shao W, Boritz E, Douek D, Fromentin R, Liegler T, Deeks S, Hecht F, Milush J, Chomont N, Palmer S. 13 Memory CD4+ T cells expressing HLA-DR contribute to HIV persistence during prolonged ART. J Virus Erad 2016. [DOI: 10.1016/s2055-6640(20)30958-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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Watters S, Polizzotto M, Shao W, Gorelick R, Anderson E, Sereti I, Aleman K, Kouyoudjian L, Zeldis J, Uldrick T, Yarchoan R, Maldarelli F. 35 Therapy with the immunomodulatory agent pomalidomide does not lead to changes in HIV-1 viral populations in vivo. J Virus Erad 2016. [DOI: 10.1016/s2055-6640(20)30980-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
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Ruan D, Shao W, Wong J, Veruttipong D, Steinberg M, Low D, Kupelian P. SU-F-T-102: Automatic Curation for a Scalable Registry Using Machine Learning. Med Phys 2016. [DOI: 10.1118/1.4956238] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Barton K, Hiener B, Winckelmann A, Rasmussen TA, Tolstrup M, Shao W, Olesen R, Denton P, Solomon A, Østergaard L, Lewin S, Søgaard OS, Palmer S. Peripheral blood CD4 + T cells and intestinal lamina propria mononuclear cells contribute to viremia following an analytical treatment interruption: a follow-up analysis of the panobinostat trial. J Virus Erad 2015. [DOI: 10.1016/s2055-6640(20)31372-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
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Han X, Shao W, Liu Z, Fan S, Yu J, Chen J, Qiao R, Zhou J, Xie P. iTRAQ-based quantitative analysis of hippocampal postsynaptic density-associated proteins in a rat chronic mild stress model of depression. Neuroscience 2015; 298:220-92. [DOI: 10.1016/j.neuroscience.2015.04.006] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2015] [Revised: 03/20/2015] [Accepted: 04/02/2015] [Indexed: 01/26/2023]
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Ruan D, Shao W, Low D, Kupelian P, Qi SX. SU-E-T-01: (In)dependence of Plan Quality On Treatment Modalities and Target-To-Critical Structure Geometry for Brain Tumor. Med Phys 2015. [DOI: 10.1118/1.4924362] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Maldarelli F, Wu X, Su L, Simonetti FR, Shao W, Hill S, Spindler J, Ferris AL, Mellors JW, Kearney MF, Coffin JM, Hughes SH. HIV latency. Specific HIV integration sites are linked to clonal expansion and persistence of infected cells. Science 2014; 345:179-83. [PMID: 24968937 DOI: 10.1126/science.1254194] [Citation(s) in RCA: 637] [Impact Index Per Article: 63.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The persistence of HIV-infected cells in individuals on suppressive combination antiretroviral therapy (cART) presents a major barrier for curing HIV infections. HIV integrates its DNA into many sites in the host genome; we identified 2410 integration sites in peripheral blood lymphocytes of five infected individuals on cART. About 40% of the integrations were in clonally expanded cells. Approximately 50% of the infected cells in one patient were from a single clone, and some clones persisted for many years. There were multiple independent integrations in several genes, including MKL2 and BACH2; many of these integrations were in clonally expanded cells. Our findings show that HIV integration sites can play a critical role in expansion and persistence of HIV-infected cells.
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Affiliation(s)
- F Maldarelli
- HIV Drug Resistance Program, National Cancer Institute, Frederick, MD 21702, USA
| | - X Wu
- Leidos Biomedical Research, Frederick, MD 21702, USA
| | - L Su
- Leidos Biomedical Research, Frederick, MD 21702, USA
| | - F R Simonetti
- HIV Drug Resistance Program, National Cancer Institute, Frederick, MD 21702, USA. Department of Biomedical and Clinical Sciences L. Sacco, University of Milan, 20122 Milan, Italy
| | - W Shao
- Leidos Biomedical Research, Frederick, MD 21702, USA
| | - S Hill
- HIV Drug Resistance Program, National Cancer Institute, Frederick, MD 21702, USA
| | - J Spindler
- HIV Drug Resistance Program, National Cancer Institute, Frederick, MD 21702, USA
| | - A L Ferris
- HIV Drug Resistance Program, National Cancer Institute, Frederick, MD 21702, USA
| | - J W Mellors
- Department of Medicine, University of Pittsburgh, Pittsburgh, PA 15261, USA
| | - M F Kearney
- HIV Drug Resistance Program, National Cancer Institute, Frederick, MD 21702, USA
| | - J M Coffin
- Department of Molecular Biology and Microbiology, Tufts University, Boston, MA 02111, USA
| | - S H Hughes
- HIV Drug Resistance Program, National Cancer Institute, Frederick, MD 21702, USA.
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Shao W, Kupelian P, Wang J, Low D, Ruan D. SU-D-BRD-04: A Logical Organizational Approach to Clinical Information Management. Med Phys 2014. [DOI: 10.1118/1.4887883] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Mora-Blanco EL, Mishina Y, Tillman EJ, Cho YJ, Thom CS, Pomeroy SL, Shao W, Roberts CWM. Activation of β-catenin/TCF targets following loss of the tumor suppressor SNF5. Oncogene 2013; 33:933-8. [PMID: 23435428 DOI: 10.1038/onc.2013.37] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2012] [Revised: 01/07/2013] [Accepted: 01/11/2013] [Indexed: 12/25/2022]
Abstract
The SWI/SNF chromatin remodeling complex is a master regulator of developmental cell-fate decisions, although the key target pathways are poorly characterized. Here, we interrogated the contribution of the SWI/SNF subunit and tumor suppressor SNF5 to the regulation of developmental pathways using conditional mouse and cell culture models. We find that loss of SNF5 phenocopies β-catenin hyperactivation and that SNF5 is essential for regulating Wnt/β-catenin pathway target expression. These data provide insight into chromatin-based mechanisms that underlie developmental regulation and elucidate the emerging theme that mutation of this tumor suppressor complex can activate developmental pathways by uncoupling them from upstream control.
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Affiliation(s)
- E L Mora-Blanco
- 1] Department of Pediatric Oncology, Dana-Farber Cancer Institute, Boston, MA, USA [2] Division of Hematology/Oncology, Children's Hospital Boston, Department of Pediatrics, Harvard Medical School, Boston, MA, USA
| | - Y Mishina
- Novartis Institute For Biomedical Research, Cambridge, MA, USA
| | - E J Tillman
- 1] Department of Pediatric Oncology, Dana-Farber Cancer Institute, Boston, MA, USA [2] Division of Hematology/Oncology, Children's Hospital Boston, Department of Pediatrics, Harvard Medical School, Boston, MA, USA
| | - Y-J Cho
- Department of Neurology, Children's Hospital Boston, Boston, MA, USA
| | - C S Thom
- 1] Department of Pediatric Oncology, Dana-Farber Cancer Institute, Boston, MA, USA [2] Division of Hematology/Oncology, Children's Hospital Boston, Department of Pediatrics, Harvard Medical School, Boston, MA, USA
| | - S L Pomeroy
- Department of Neurology, Children's Hospital Boston, Boston, MA, USA
| | - W Shao
- Novartis Institute For Biomedical Research, Cambridge, MA, USA
| | - C W M Roberts
- 1] Department of Pediatric Oncology, Dana-Farber Cancer Institute, Boston, MA, USA [2] Division of Hematology/Oncology, Children's Hospital Boston, Department of Pediatrics, Harvard Medical School, Boston, MA, USA
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Ruan D, Shao W, DeMarco J, Tenn S, Langen K, Dieterich S, King C, Closkey SM, Low D, Kupelian P. Collection of Treatment Plan Parameters and Related Quality Indices Into Radiation Therapy Registries. Int J Radiat Oncol Biol Phys 2012. [DOI: 10.1016/j.ijrobp.2012.07.405] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Ruan D, Shao W, DeMarco J, Tenn S, Agazaryan N, King C, Low D, Kupelian P, Steinberg M. Plan Quality Inference and Cross Validation for Standardization and Consistency Evaluation. Int J Radiat Oncol Biol Phys 2012. [DOI: 10.1016/j.ijrobp.2012.07.135] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Ruan D, Shao W, DeMarco J, King C, Agazaryan N, Low D, Kupelian P, Steinberg M. Patient-specific Quantification of the Dosimetric Impact of Motion During Radiation Therapy: A Clinically Usable Tool. Int J Radiat Oncol Biol Phys 2012. [DOI: 10.1016/j.ijrobp.2012.07.222] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Shao W, Nabb D, Renevier N, Sherrington I, Luo JK. Mechanical and corrosion resistance properties of TiO2nanoparticles reinforced Ni coating by electrodeposition. ACTA ACUST UNITED AC 2012. [DOI: 10.1088/1757-899x/40/1/012043] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Shao W, Cong N, Song J. The Safety and Efficacy of Sorafenib Combined with Transarterial Chemoembolization For Patients with Unresectable Hepatocellular Carcinoma. Ann Oncol 2012. [DOI: 10.1016/s0923-7534(20)33025-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022] Open
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Ruan D, Shao W, DeMarco J, Kupelian P, Low D. SU-E-T-214: Predicting Plan Quality from Patient Geometry: Feature Selection and Inference Modeling. Med Phys 2012; 39:3752. [DOI: 10.1118/1.4735275] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Ruan D, Shao W, DeMarco J, Tenn S, King C, Low D, Kupelian P, Steinberg M. Evolving treatment plan quality criteria from institution-specific experience. Med Phys 2012; 39:2708-12. [DOI: 10.1118/1.4704497] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Shao W, Yan G, Lin Y, Chen J, Dai H, Wang F, Xi Y, Thorlacius H, Qi Z. CD44/CD70 Blockade and Anti-CD154/LFA-1 Treatment Synergistically Suppress Accelerated Rejection and Prolong Cardiac Allograft Survival in Mice. Scand J Immunol 2011; 74:430-7. [DOI: 10.1111/j.1365-3083.2011.02595.x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
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Song D, Bandsma RHJ, Xiao C, Xi L, Shao W, Jin T, Lewis GF. Acute cannabinoid receptor type 1 (CB1R) modulation influences insulin sensitivity by an effect outside the central nervous system in mice. Diabetologia 2011; 54:1181-9. [PMID: 21340622 DOI: 10.1007/s00125-011-2082-z] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/16/2010] [Accepted: 01/18/2011] [Indexed: 01/22/2023]
Abstract
AIMS/HYPOTHESIS Modulation of central nervous system (CNS) and extra-CNS cannabinoid receptor type 1 (CB1R) affects metabolic conditions, independently of weight loss. Here we examined the relative contributions of acute CNS and extra-CNS CB1R modulation on insulin sensitivity using pharmacological gain- and loss-of-function of CB1R in mice. METHODS We assessed the effects of acute modulation of CB1R on insulin sensitivity and tissue glucose uptake by administering a CB1R agonist (HU210) and antagonist (AM251) (vs vehicle) i.v. in wild-type mice. In addition, we administered a CB1R agonist (vs vehicle) systemically (i.v.) to Cb1r (also known as Cnr1) knockout (Cb1r (-/-)) mice or intracerebroventricularly (i.c.v.) in wild-type mice to elucidate the peripheral vs CNS-mediated regulatory effect of CB1R on insulin sensitivity. RESULTS HU210 induced significant insulin resistance in wild-type mice with a reduction of whole-body glucose disappearance rate and muscle Akt phosphorylation, as well as of glucose uptake by skeletal muscle, but not by adipose tissue, changes that were prevented by pretreatment with AM251. HU210 did not affect insulin sensitivity in Cb1r (-/-) mice, suggesting that the observed effects were mediated through CB1R. HU210 administered i.c.v. did not induce insulin resistance, suggesting that acute stimulation of CNS CB1R was not required for this effect. CONCLUSIONS/INTERPRETATION Skeletal muscle insulin sensitivity is affected by acute CB1R modulation. These changes are mediated by extra-CNS CB1R, probably by the receptors in skeletal muscle tissue.
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Affiliation(s)
- D Song
- Department of Medicine, University of Toronto, Toronto, ON, Canada
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Yu Z, Shao W, Chiang Y, Foltz W, Zhang Z, Ling W, Fantus IG, Jin T. Oltipraz upregulates the nuclear factor (erythroid-derived 2)-like 2 [corrected](NRF2) antioxidant system and prevents insulin resistance and obesity induced by a high-fat diet in C57BL/6J mice. Diabetologia 2011; 54:922-34. [PMID: 21161163 DOI: 10.1007/s00125-010-2001-8] [Citation(s) in RCA: 137] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/18/2010] [Accepted: 11/03/2010] [Indexed: 12/23/2022]
Abstract
AIMS/HYPOTHESIS We investigated whether oltipraz, a nuclear respiratory factor 2 alpha subunit (NRF2) activator, improves insulin sensitivity and prevents the development of obesity in mice. METHODS C57BL/6J mice were fed with a low-fat diet (10% of energy as fat), a high-fat diet (HFD) (45% of energy as fat) or a HFD with oltipraz for 28 weeks. The effects of oltipraz on body weight, fat content, glucose disposal, insulin signalling, metabolic profiles and endogenous NRF2 functional status in the three groups of mice were investigated. RESULTS Oltipraz prevented or significantly attenuated the effect of HFD on glucose disposal, body weight and fat gain. Impairment of protein kinase B/Akt phosphorylation in this HFD-fed mouse model in response to intraperitoneal insulin injection was observed in adipose tissue, but not in the muscles, accompanied by inhibition of AMP-activated protein kinase signalling and activation of p70S6 kinase, as well as reduced GLUT4 content. These defects were attenuated by oltipraz administration. Nuclear content of NRF2 in adipose tissue was reduced by HFD feeding, associated with increased Keap1 mRNA expression and reduced production of haem oxygenase-1 and superoxide dismutase, increased protein oxidation, decreased plasma reduced:oxidised glutathione ratio and the appearance of macrophage marker F4/80. These defects were also restored by oltipraz. Finally, oltipraz attenuated HFD-induced inducible nitric oxide synthase overproduction. CONCLUSIONS/INTERPRETATION Impairment of the endogenous redox system is important in the development of obesity and insulin resistance in chronic HFD feeding. NRF2 activation represents a potential novel approach in the treatment and prevention of obesity and diabetes.
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Affiliation(s)
- Z Yu
- Guandong Provincial Key Laboratory of Food, Nutrition and Health, Department of Nutrition, Public Health Institute, Sun Yat-Sen University, Guangzhou, People's Republic of China
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