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Zuo Y, Ning N, Qiao GC, Wu JH, Bao JH, Zhang XY, Bai J, Wu FH, Liu Y, Yu Q, Hu SG. Floating-Point Approximation Enabling Cost-Effective and High-Precision Digital Implementation of FitzHugh-Nagumo Neural Networks. IEEE Trans Biomed Circuits Syst 2024; 18:347-360. [PMID: 37878421 DOI: 10.1109/tbcas.2023.3327496] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/27/2023]
Abstract
The study of neuron interactions and hardware implementations are crucial research directions in neuroscience, particularly in developing large-scale biological neural networks. The FitzHugh-Nagumo (FHN) model is a popular neuron model with highly biological plausibility, but its complexity makes it difficult to apply at scale. This paper presents a cost-saving and improved precision approximation algorithm for the digital implementation of the FHN model. By converting the computational data into floating-point numbers, the original multiplication calculations are replaced by adding the floating-point exponent part and fitting the mantissa part with piecewise linear. In the hardware implementation, shifters and adders are used, greatly reducing resource overhead. Implementing FHN neurons by this approximation calculations on FPGA reduces the normalized root mean square error (RMSE) to 3.5% of the state-of-the-art (SOTA) while maintaining a performance overhead ratio improvement of 1.09 times. Compared to implementations based on approximate multipliers, the proposed method achieves a 20% reduction in error at the cost of a 2.8% increase in overhead.This model gained additional biological properties compared to LIF while reducing the deployment scale by only 9%. Furthermore, the hardware implementation of nine coupled circular networks with eight nodes and directional diffusion was carried out to demonstrate the algorithm's effectiveness on neural networks. The error decreased to 60% compared to the single neuron of the SOTA. This hardware-friendly algorithm allows for the low-cost implementation of high-precision hardware simulation, providing a novel perspective for studying large-scale, biologically plausible neural networks.
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Peng J, Pang J, Huang L, Enkhjargal B, Zhang T, Mo J, Wu P, Xu W, Zuo Y, Peng J, Zuo G, Chen L, Tang J, Zhang JH, Jiang Y. Corrigendum to "LRP1 activation attenuates white matter injury by modulating microglial polarization through Shc1/PI3K/Akt pathway after subarachnoid hemorrhage in rats" [Redox Biol. 21 (2019) 101121]. Redox Biol 2024:103098. [PMID: 38413274 DOI: 10.1016/j.redox.2024.103098] [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: 02/29/2024] Open
Affiliation(s)
- Jianhua Peng
- Department of Neurosurgery, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan, 646000, China; Department of Physiology and Pharmacology, Loma Linda University, Loma Linda, CA, 92350, USA
| | - Jinwei Pang
- Department of Neurosurgery, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan, 646000, China; Department of Physiology and Pharmacology, Loma Linda University, Loma Linda, CA, 92350, USA
| | - Lei Huang
- Department of Physiology and Pharmacology, Loma Linda University, Loma Linda, CA, 92350, USA
| | - Budbazar Enkhjargal
- Department of Physiology and Pharmacology, Loma Linda University, Loma Linda, CA, 92350, USA
| | - Tongyu Zhang
- Department of Physiology and Pharmacology, Loma Linda University, Loma Linda, CA, 92350, USA
| | - Jun Mo
- Department of Physiology and Pharmacology, Loma Linda University, Loma Linda, CA, 92350, USA
| | - Pei Wu
- Department of Physiology and Pharmacology, Loma Linda University, Loma Linda, CA, 92350, USA
| | - Weilin Xu
- Department of Physiology and Pharmacology, Loma Linda University, Loma Linda, CA, 92350, USA
| | - Yuchun Zuo
- Department of Physiology and Pharmacology, Loma Linda University, Loma Linda, CA, 92350, USA
| | - Jun Peng
- Department of Physiology and Pharmacology, Loma Linda University, Loma Linda, CA, 92350, USA
| | - Gang Zuo
- Department of Physiology and Pharmacology, Loma Linda University, Loma Linda, CA, 92350, USA
| | - Ligang Chen
- Department of Neurosurgery, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan, 646000, China
| | - Jiping Tang
- Department of Physiology and Pharmacology, Loma Linda University, Loma Linda, CA, 92350, USA
| | - John H Zhang
- Department of Physiology and Pharmacology, Loma Linda University, Loma Linda, CA, 92350, USA; Department of Anesthesiology, Loma Linda University, Loma Linda, CA, 92350, USA; Department of Neurosurgery, Loma Linda University, Loma Linda, CA, 92350, USA.
| | - Yong Jiang
- Department of Neurosurgery, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan, 646000, China; Sichuan Province Neurosurgery Clinical Medical Research Center, Luzhou, Sichuan, 646000, China; Nuclear Medicine and Molecular Imaging Key Laboratory of Sichuan Province, Luzhou, Sichuan, 646000, China.
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Liu X, Xu Y, Wang G, Ma X, Lin M, Zuo Y, Li W. Bronchiolar adenoma/ciliated muconodular papillary tumour: advancing clinical, pathological, and imaging insights for future perspectives. Clin Radiol 2024; 79:85-93. [PMID: 38049359 DOI: 10.1016/j.crad.2023.10.038] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2023] [Revised: 10/11/2023] [Accepted: 10/30/2023] [Indexed: 12/06/2023]
Abstract
Bronchiolar adenoma/ciliated muconodular papillary tumour (BA/CMPT) is a benign peripheral lung tumour composed of bilayered bronchiolar-type epithelium containing a continuous basal cell layer; however, the similarities in imaging and tissue biopsy findings at histopathology between BA/CMPT and malignant tumours, including lung adenocarcinoma, pose significant challenges in accurately diagnosing BA/CMPT preoperatively. This difficulty in differentiation often results in misdiagnosis and unnecessary overtreatment. The objective of this article is to provide a comprehensive and systematic review of BA/CMPT, encompassing its clinical manifestations, pathological basis, imaging features, and differential diagnosis. By enhancing healthcare professionals' understanding of this disease, we aim to improve the accuracy of preoperative BA/CMPT diagnosis. This improvement is crucial for the development of appropriate therapeutic strategies and the overall improvement of patient prognosis.
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Affiliation(s)
- X Liu
- Medical School, Kunming University of Science and Technology, Kunming 650500, P.R. China; Department of Radiology, The First People's Hospital of Yunnan Province, Kunming 650032, Yunnan, China
| | - Y Xu
- Department of Pathology, The First People's Hospital of Yunnan Province, Kunming 650032, Yunnan, China; The Affiliated Hospital of Kunming University of Science and Technology, Kunming 650032, Yunnan, China
| | - G Wang
- Department of Radiology, The First People's Hospital of Yunnan Province, Kunming 650032, Yunnan, China; The Affiliated Hospital of Kunming University of Science and Technology, Kunming 650032, Yunnan, China
| | - X Ma
- Department of Scientific Research, The First People's Hospital of Yunnan Province, Kunming 650032, Yunnan, China; The Affiliated Hospital of Kunming University of Science and Technology, Kunming 650032, Yunnan, China
| | - M Lin
- Medical School, Kunming University of Science and Technology, Kunming 650500, P.R. China; Department of Radiology, The First People's Hospital of Yunnan Province, Kunming 650032, Yunnan, China
| | - Y Zuo
- Department of Radiology, The First People's Hospital of Yunnan Province, Kunming 650032, Yunnan, China; The Affiliated Hospital of Kunming University of Science and Technology, Kunming 650032, Yunnan, China.
| | - W Li
- Department of Radiology, The First People's Hospital of Yunnan Province, Kunming 650032, Yunnan, China; The Affiliated Hospital of Kunming University of Science and Technology, Kunming 650032, Yunnan, China.
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Jiang J, Xia Z, Zheng D, Li Y, Li F, Wang W, Ding S, Zhang J, Su X, Zhai Q, Zuo Y, Zhang Y, Gaisano HY, He Y, Sun J. Factors associated with nocturnal and diurnal glycemic variability in patients with type 2 diabetes: a cross-sectional study. J Endocrinol Invest 2024; 47:245-253. [PMID: 37354249 DOI: 10.1007/s40618-023-02142-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/16/2023] [Accepted: 06/16/2023] [Indexed: 06/26/2023]
Abstract
PURPOSE There is little information on factors that influence the glycemic variability (GV) during the nocturnal and diurnal periods. We aimed to examine the relationship between clinical factors and GV during these two periods. METHODS This cross-sectional study included 134 patients with type 2 diabetes. 24-h changes in blood glucose were recorded by a continuous glucose monitoring system. Nocturnal and diurnal GV were assessed by standard deviation of blood glucose (SDBG), coefficient of variation (CV), and mean amplitude of glycemic excursions (MAGE), respectively. Robust regression analyses were performed to identify the factors associated with GV. Restricted cubic splines were used to determine dose-response relationship. RESULTS During the nocturnal period, age and glycemic level at 12:00 A.M. were positively associated with GV, whereas alanine aminotransferase was negatively associated with GV. During the diurnal period, homeostatic model assessment 2-insulin sensitivity (HOMA2-S) was positively associated with GV, whereas insulin secretion-sensitivity index-2 (ISSI2) was negatively associated with GV. Additionally, we found a J-shape association between the glycemic level at 12:00 A.M. and MAGE, with 9.0 mmol/L blood glucose level as a cutoff point. Similar nonlinear associations were found between ISSI2 and SDBG, and between ISSI2 and MAGE, with ISSI2 value of 175 as a cutoff point. CONCLUSION Factors associated with GV were different between nocturnal and diurnal periods. The cutoff points we found in this study may provide the therapeutic targets for beta-cell function and pre-sleep glycemic level in clinical practice.
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Affiliation(s)
- J Jiang
- Department of Endocrinology, Jining No. 1 People's Hospital, 6 Jiankang Road, Rencheng District, Jining, 272000, Shandong, China
- Postdoctoral of Shandong University of Traditional Chinese Medicine, Jinan, Shandong, China
| | - Z Xia
- Department of Epidemiology and Health Statistics, School of Public Health, Capital Medical University, No.10 Xitoutiao, You'anmen Wai, Fengtai District, Beijing, 100069, China
| | - D Zheng
- Department of Epidemiology and Health Statistics, School of Public Health, Capital Medical University, No.10 Xitoutiao, You'anmen Wai, Fengtai District, Beijing, 100069, China
- Beijing Municipal Key Laboratory of Clinical Epidemiology, Beijing, China
| | - Y Li
- Department of Epidemiology and Health Statistics, School of Public Health, Capital Medical University, No.10 Xitoutiao, You'anmen Wai, Fengtai District, Beijing, 100069, China
| | - F Li
- Department of Endocrinology, Jining No. 1 People's Hospital, 6 Jiankang Road, Rencheng District, Jining, 272000, Shandong, China
| | - W Wang
- Department of Endocrinology, Jining No. 1 People's Hospital, 6 Jiankang Road, Rencheng District, Jining, 272000, Shandong, China
| | - S Ding
- Department of Endocrinology, Jining No. 1 People's Hospital, 6 Jiankang Road, Rencheng District, Jining, 272000, Shandong, China
| | - J Zhang
- Department of Endocrinology, Jining No. 1 People's Hospital, 6 Jiankang Road, Rencheng District, Jining, 272000, Shandong, China
| | - X Su
- Department of Epidemiology and Health Statistics, School of Public Health, Capital Medical University, No.10 Xitoutiao, You'anmen Wai, Fengtai District, Beijing, 100069, China
| | - Q Zhai
- Department of Epidemiology and Health Statistics, School of Public Health, Capital Medical University, No.10 Xitoutiao, You'anmen Wai, Fengtai District, Beijing, 100069, China
| | - Y Zuo
- Department of Epidemiology and Health Statistics, School of Public Health, Capital Medical University, No.10 Xitoutiao, You'anmen Wai, Fengtai District, Beijing, 100069, China
| | - Y Zhang
- Department of Epidemiology and Health Statistics, School of Public Health, Capital Medical University, No.10 Xitoutiao, You'anmen Wai, Fengtai District, Beijing, 100069, China
| | - H Y Gaisano
- Departments of Medicine and Physiology, University of Toronto, Toronto, ON, Canada
| | - Y He
- Department of Epidemiology and Health Statistics, School of Public Health, Capital Medical University, No.10 Xitoutiao, You'anmen Wai, Fengtai District, Beijing, 100069, China.
- Beijing Municipal Key Laboratory of Clinical Epidemiology, Beijing, China.
| | - J Sun
- Department of Endocrinology, Jining No. 1 People's Hospital, 6 Jiankang Road, Rencheng District, Jining, 272000, Shandong, China.
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Zhou PJ, Zuo Y, Qiao GC, Zhang CM, Zhang Z, Meng LW, Yu Q, Liu Y, Hu SG. Achieving High Core Neuron Density in a Neuromorphic Chip Through Trade-off Among Area, Power Consumption, and Data Access Bandwidth. IEEE Trans Biomed Circuits Syst 2023; 17:1319-1330. [PMID: 37405896 DOI: 10.1109/tbcas.2023.3292469] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/07/2023]
Abstract
As a crucial component of neuromorphic chips, on-chip memory usually occupies most of the on-chip resources and limits the improvement of neuron density. The alternative of using off-chip memory may result in additional power consumption or even a bottleneck for off-chip data access. This article proposes an on- and off-chip co-design approach and a figure of merit (FOM) to achieve a trade-off between chip area, power consumption, and data access bandwidth. By evaluating the FOM of each design scheme, the scheme with the highest FOM (1.085× better than the baseline) is adopted to design a neuromorphic chip. Deep multiplexing and weight-sharing technologies are used to reduce on-chip resource overhead and data access pressure. A hybrid memory design method is proposed to optimize on- and off-chip memory distribution, which reduces on-chip storage pressure and total power consumption by 92.88% and 27.86%, respectively, while avoiding the explosion of off-chip access bandwidth. The co-designed neuromorphic chip with ten cores fabricated under standard 55 nm CMOS technology has an area of 4.4 mm 2 and a core neuron density of 4.92 K/mm 2, an improvement of 3.39 ∼ 30.56× compared with previous works. After deploying a full-connected and a convolution-based spiking neural network (SNN) for ECG signal recognition, the neuromorphic chip achieves 92% and 95% accuracy, respectively. This work provides a new path for developing high-density and large-scale neuromorphic chips.
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Zuo Y, Xu M, Li Y, Wang S, Zhou S, Luo H. [Construction of a schistosomiasis transmission risk assessment system in Wuhan City based on analytic hierarchy process]. Zhongguo Xue Xi Chong Bing Fang Zhi Za Zhi 2023; 35:374-378. [PMID: 37926472 DOI: 10.16250/j.32.1374.2022244] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 11/07/2023]
Abstract
OBJECTIVE To construct a schistosomiasis transmission risk assessment system in Wuhan City and preliminary evaluate its application effect, so as to promote the rational allocation of schistosomiasis control resources and accelerate the progress towards schistosomiasis elimination. METHODS The schistosomiasis risk assessment indicators were collected through referring schistosomiasis surveillance data of Wuhan City from 2014 to 2020, literature review and expert interviews. Indicators within each criterion and sub-criterion were screened using the Delphi method, and a hierarchical structure model was created based on analytic hierarchy process. Quantitative assignment of each indicator was conducted according to relative importance, and the weight and combination weight of each criterion were calculated in each analytic hierarchy framework to create a schistosomiasis transmission risk assessment system, which was used for the schistosomiasis transmission risk assessment in 12 national schistosomiasis surveillance sites in Wuhan City. RESULTS A three-level schistosomiasis transmission risk assessment system was preliminarily constructed, which included a target layer, 5 criterion layers and 21 sub-criterion layers. Of all indicators in the criterion layer, transmission route had the highest weight (0.433), followed by source of Schistosoma japonicum infection (0.294); and among all indicators in the sub-criterion layer, S. japonicum infection in Oncomelania hupensis and sentinel mice had the highest combination weight (0.125), followed by prevalence of S. japonicum infection in humans (0.091) and bovines (0.053), snail control by chemical treatment (0.049), positive rate of inquiry examinations (0.048), allocation of schistosomiasis control professionals (0.045), and areas of submerged snail-infested settings (0.041). Of the 12 national schistosomiasis surveillance sites in Wuhan City, there were 5 sites with weights of > 0.8, 4 sites with weights of 0.6 to 0.8, and 3 sites with weights of < 0.6 in 2020. CONCLUSIONS A schistosomiasis transmission risk assessment system has been constructed based on analytic hierarchy process in Wuhan City, which may provide a evidence-based basis for health resource allocation and decision-making for schistosomiasis control.
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Affiliation(s)
- Y Zuo
- Institute of Schistosomiasis Control, Wuhan Municipal Center for Disease Control and Prevention, Wuhan, Hubei 430015, China
| | - M Xu
- Institute of Schistosomiasis Control, Wuhan Municipal Center for Disease Control and Prevention, Wuhan, Hubei 430015, China
| | - Y Li
- Institute of Schistosomiasis Control, Wuhan Municipal Center for Disease Control and Prevention, Wuhan, Hubei 430015, China
| | - S Wang
- Institute of Schistosomiasis Control, Wuhan Municipal Center for Disease Control and Prevention, Wuhan, Hubei 430015, China
| | - S Zhou
- Institute of Schistosomiasis Control, Wuhan Municipal Center for Disease Control and Prevention, Wuhan, Hubei 430015, China
| | - H Luo
- Institute of Schistosomiasis Control, Wuhan Municipal Center for Disease Control and Prevention, Wuhan, Hubei 430015, China
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Du J, Jiang J, Wang H, Zuo Y, Sun J. Effect of clay supplementation on growth performance of broiler chickens: a systematic review and meta-analysis. Br Poult Sci 2023:1-11. [PMID: 36607319 DOI: 10.1080/00071668.2022.2160625] [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] [Indexed: 01/07/2023]
Abstract
1. This review assessed the effect of dietary clay supplementation as a drug and toxin adsorbent on broiler growth performance as a meta-analysis.2. A total of 33 eligible studies were included in the present study after identification and evaluation from online databases. Standardised mean differences (SMD) with corresponding 95% confidence intervals were computed with a fixed-effects model.3. The results indicated that clay supplementation significantly improved broiler daily gain (P < 0.001) and feed conversion ratio (P < 0.001), but did not affect feed intake (P = 0.954). Results of subgroup analysis showed that zeolite clay had the most stable medium improvement effect on FCR, while kaolin had a large effect. In addition, male broilers and Cobb or Ross broilers were more sensitive to the addition of clay, and the best supplemental levels, in general, were 10 g/kg to 30 g/kg.4. Meta-regression analysis showed that clay supplemental level and sex of broilers may be important factors in the effect of clay on ADG and FCR of broilers, respectively. The sensitivity analysis showed high stability of the results and no significant publication bias was found with funnel plot analysis and Egger's or Begg's test (P > 0.05).5. In conclusion, an appropriate addition level is a prerequisite for effective clay application. Kaolin and zeolite clays seem to be more suitable for enhancing broiler growth performance, and the value of clay is amplified in specific broiler breeds.
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Affiliation(s)
- J Du
- Research and Development Centre, Research Centre of Nanjing Well Pharmaceutical Group Co. LTD, Nanjing, China
| | - J Jiang
- College of Animal Science and Technology, Northeast Agricultural University, Harbin, China
| | - H Wang
- College of Animal Science and Technology, Northeast Agricultural University, Harbin, China
| | - Y Zuo
- College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, China
| | - J Sun
- College of Animal Science and Technology, Northeast Agricultural University, Harbin, China
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Wang P, Xue Y, Zuo Y, Xue Y, Zhang JH, Duan J, Liu F, Liu A. Exosome-Encapsulated microRNA-140-5p Alleviates Neuronal Injury Following Subarachnoid Hemorrhage by Regulating IGFBP5-Mediated PI3K/AKT Signaling Pathway. Mol Neurobiol 2022; 59:7212-7228. [PMID: 36129637 DOI: 10.1007/s12035-022-03007-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [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: 11/30/2021] [Accepted: 08/16/2022] [Indexed: 10/14/2022]
Abstract
Recent literature has highlighted the therapeutic implication of exosomes (Exos) released by adipose tissue-originated stromal cells (ADSCs) in regenerative medicine. Herein, the current study sought to examine the potential protective effects of ADSC-Exos on neuronal injury following subarachnoid hemorrhage (SAH) by delivering miR-140-5p. Firstly, isolated primary neurons were co-cultured together with well-identified ADSC-Exos. TDP-43-treated neurons were subsequently treated with PKH67-ADSC-Exos and Cy3-miR-140-5p to assess whether ADSC-Exos could transmit miR-140-5p to the recipient neurons to affect their behaviors. Moreover, a luciferase assay was carried out to identify the presumable binding of miR-140-5p to IGFBP5. IGFBP5 rescue experimentation was also performed to testify whether IGFBP5 conferred the impact of miR-140-5p on neuronal damage. The role of PI3K/AKT signaling pathway was further analyzed with the application of its inhibitor miltefosine. Lastly, SAH rat models were developed for in vivo validation. It was found that ADSC-Exos conferred protection against TDP-43-caused neuronal injury by augmenting viability and suppressing cell apoptosis. In addition, miR-140-5p was transmitted from ADSC-Exos to neurons and post-transcriptionally downregulated the expression of IGFBP5. As a result, by means of suppressing IGFBP5 and activating the PI3K/AKT signaling pathway, miR-140-5p from ADSC-Exos induced a neuroprotective effect. Furthermore, in vivo findings substantiated the aforementioned protective role of ADSC-Exos-miR-140-5p, contributing to protection against SAH-caused neurological dysfunction. Collectively, our findings indicated that ADSC-Exos-miR-140-5p could inhibit TDP-43-induced neuronal injury and attenuate neurological dysfunction of SAH rats by inhibiting IGFBP5 and activating the PI3K/Akt signaling pathway.
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Affiliation(s)
- Pinyan Wang
- Department of Neurosurgery, the Third Xiangya Hospital of Central South University, Changsha, 410013, People's Republic of China
| | - Yanan Xue
- Department of Plastic Surgery, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, 310016, People's Republic of China
| | - Yuchun Zuo
- Department of Neurosurgery, Xiangya Hospital Central South University, Changsha, 410008, People's Republic of China
| | - Yinan Xue
- Biological Science, College of Chemistry and Life Sciences, Zhejiang Normal University, Jinhua, 321004, People's Republic of China
| | - John H Zhang
- Department of Neurosurgery, School of Medicine, Loma Linda University, Loma Linda, CA, 92354, USA
| | - Jiajia Duan
- Department of Neurosurgery, the Third Xiangya Hospital of Central South University, Changsha, 410013, People's Republic of China
| | - Fei Liu
- Department of Neurosurgery, the Third Xiangya Hospital of Central South University, Changsha, 410013, People's Republic of China. .,Department of Neurosurgery, The Fifth Affiliated Hospital of Sun Yat-Sen University, Zhuhai, 519000, People's Republic of China.
| | - Aihua Liu
- Department of Neurosurgery, the Third Xiangya Hospital of Central South University, Changsha, 410013, People's Republic of China. .,Beijing Neurosurgical Institute, Beijing Tiantan Hospital, Capital Medical University, Beijing, 100070, People's Republic of China.
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Wu Z, Zuo Y, Zhang Z, Wang X, Mu J, Wang XD, Hu B, Su J, Li Z, Wei X, Zeng X. Self-compression of stimulated Raman backscattering by a flying focus. Phys Rev E 2022; 106:035209. [PMID: 36266811 DOI: 10.1103/physreve.106.035209] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2021] [Accepted: 09/08/2022] [Indexed: 06/16/2023]
Abstract
The regime of self-compression has been proposed for plasma-based backward Raman amplification upon a flying focus. By using a pumping focus moving with a speed equal to the group velocity of stimulated Raman backscattering (SRBS), only a short part of SRBS which always synchronizes with the flying focus can be amplified. Therefore, instead of a short pulse, plasma noise or a long pulse can seed the BRA amplifiers. Here we demonstrate the regime by 2D particle-in-cell simulations, showing that the pump pulse is compressed from 26 ps to 116 fs, with an output amplitude comparable with the case of a well-synchronized short seed. As only one laser pulse is used in the simulation, the results present a significant path to simplify the Raman amplifiers.
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Affiliation(s)
- Z Wu
- Science and Technology on Plasma Physics Laboratory, Research Center of Laser Fusion, China Academy of Engineering Physics, Mianyang, Sichuan 621900, China
| | - Y Zuo
- Science and Technology on Plasma Physics Laboratory, Research Center of Laser Fusion, China Academy of Engineering Physics, Mianyang, Sichuan 621900, China
| | - Z Zhang
- Science and Technology on Plasma Physics Laboratory, Research Center of Laser Fusion, China Academy of Engineering Physics, Mianyang, Sichuan 621900, China
| | - X Wang
- Science and Technology on Plasma Physics Laboratory, Research Center of Laser Fusion, China Academy of Engineering Physics, Mianyang, Sichuan 621900, China
| | - J Mu
- Science and Technology on Plasma Physics Laboratory, Research Center of Laser Fusion, China Academy of Engineering Physics, Mianyang, Sichuan 621900, China
| | - X D Wang
- Science and Technology on Plasma Physics Laboratory, Research Center of Laser Fusion, China Academy of Engineering Physics, Mianyang, Sichuan 621900, China
| | - B Hu
- Science and Technology on Plasma Physics Laboratory, Research Center of Laser Fusion, China Academy of Engineering Physics, Mianyang, Sichuan 621900, China
| | - J Su
- Science and Technology on Plasma Physics Laboratory, Research Center of Laser Fusion, China Academy of Engineering Physics, Mianyang, Sichuan 621900, China
| | - Z Li
- Science and Technology on Plasma Physics Laboratory, Research Center of Laser Fusion, China Academy of Engineering Physics, Mianyang, Sichuan 621900, China
| | - X Wei
- Zhongshan Photon Science, ZhongShan, Guangdong 517465, China
| | - X Zeng
- Science and Technology on Plasma Physics Laboratory, Research Center of Laser Fusion, China Academy of Engineering Physics, Mianyang, Sichuan 621900, China and Zhongshan Photon Science, ZhongShan, Guangdong 517465, China
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Yang GB, Hu FL, Cheng W, Gao JQ, Sheng ZY, Zhang YJ, Du XL, Zuo Y, Li Y, Chen BM, Wang ZH, Zhao Z. [A multi-center, randomized controlled study on the effect of Saccharomyces boulardii combined with triple therapy for the initial eradication of Helicobacter pylori infection]. Zhonghua Yi Xue Za Zhi 2022; 102:1383-1388. [PMID: 35545584 DOI: 10.3760/cma.j.cn112137-20210811-01790] [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] [Indexed: 06/15/2023]
Abstract
Objective: To assess the efficacy and safety of Saccharomyces boulardii (S. boulardii) in combination with triple therapy as a first-line regimen for the eradication of Helicobacter pylori (H. pylori) in non-ulcer dyspepsia (NUD) patients. Methods: A total of 497 Helicobacter pylori-positive patients who underwent gastroscopy and diagnosed with NUD were enrolled from June 2018 to January 2020 in 9 medical centers across China. Participants were segmentedly randomly divided into 3 groups. Patients in group A received S. boulardii for 14 days and triple therapy for 10 days, while patients in group B received bismuth quadruple group for 10 days, and patients in group C received triple therapy for 10 days. The H. pylori status was determined by the 13C-urea breath test on the 44th day of the treatment. Symptom improvement and adverse reactions were assessed on the 14th and 44th day. Results: There were 229 males and 268 females in all 497 patients enrolled. They were aged 18-69 (46.1±11.8) years and 472 of them (158 cases in group A, 159 cases in group B, and 155 cases in group C) completed the trial. The intention-to-treat (ITT) eradication rates in patients in patients A, B and C were 77.8% (126/162), 80.1% (137/171) and 65.2% (107/164) respectively, and per protocol-based (PP) eradication rates were 79.7% (126/158), 86.2% (137/159) and 69.0% (107/155) respectively. The differences were statistically significant in ITT and PP analysis among 3 groups (ITT: χ²=11.14, P<0.01; PP: χ²=13.86, P<0.01). There was no significant difference between eradication rates of two quadruple therapys(all P>0.05), but both of them were significantly higher than that of standard triple therapy (both P<0.05). Statistics revealed that both quadruple therapys led to significantly higher symptom improvement of belching compared with that of standard triple therapy in day 14 (P<0.05). The relief of abdominal distension and belching symptom scores of group A were significantly higher than those of group C in day 44(all P<0.05). There was no serious adverse event reported. The incidence of diarrhea in group A was significantly lower than those in the other two groups (both P<0.05). Conclusions: The combination of S. boulardii and triple therapy can achieve a better eradication effect on H. pylori infection with NUD, and has advantages in symptom relief and safety.
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Affiliation(s)
- G B Yang
- Department of Gastroenterology, Aerospace Center Hospital, Beijing 100049, China
| | - F L Hu
- Department of Gastroenterology, First Hospital of Beijing University, Beijing 100034, China
| | - W Cheng
- Department of Gastroenterology, First Hospital of Beijing University, Beijing 100034, China
| | - J Q Gao
- Department of Gastroenterology, First Hospital of Beijing University, Beijing 100034, China
| | - Z Y Sheng
- Department of Gastroenterology, the Seventh Medical Center of PLA General Hospital, Beijing 100700, China
| | - Y J Zhang
- Department of Gastroenterology, Nanjing First Hospital, Nanjing 210006, China
| | - X L Du
- Department of Gastroenterology, Changhai Hospital Affiliated to Naval Medical University, Shanghai 200433, China
| | - Y Zuo
- Department of Gastroenterology, Qilu Hospital of Shandong University, Jinan 250012, China
| | - Y Li
- Department of Gastroenterology, Shengjing Hospital Affiliated to China Medical University, Shenyang 110801, China
| | - B M Chen
- Department of Gastroenterology, Southern Hospital Affiliated to Southern Medical University, Guangzhou 510515, China
| | - Z H Wang
- Department of Gastroenterology, General Hospital of Tianjin Medical University, Tianjin 300052, China
| | - Zihan Zhao
- Department of Gastroenterology, Aerospace Center Hospital, Beijing 100049, China
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11
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Abstract
Pulmonary enteric adenocarcinoma (PEAC), as a rare histologic subtype of primary lung adenocarcinoma, is defined as an adenocarcinoma in which the enteric component exceeds 50%. It is named after its shared morphological and immunohistochemical features with colorectal cancer. While with such similarity, the differential diagnosis of PEAC and lung metastatic colorectal cancer is a great challenge in the clinic. PEAC may originate from the intestinal metaplasia of respiratory basal cells stimulated by risk factors such as smoking. Current studies have found that KRAS is a relatively high-frequency mutation gene, and other driver gene mutations are rare. In terms of immunohistochemistry, in pulmonary enteric adenocarcinoma, the positive rate was 88.2% (149/169) for CK7, 78.1% (132/169) for CDX2, 48.2% (82/170) for CK20 and 38.8% (66/170) for TTF1. As for clinical features, the average age of onset for pulmonary enteric adenocarcinoma was 62 years, male patients accounted for 56.5% (35/62), smokers accounted for 78.8% (41/52), and 41.4% (24/58) of the primary lesion was located in the upper lobe of the right lung. In terms of treatment, conventional non-small cell lung cancer (NSCLC) regimens rather than colorectal cancer regimens are now recommended. There is still an urgent need for more basic and clinical research, in-depth exploration of its molecular feature and pathogenesis from the level of omics and other aspects, to help diagnosis and differential diagnosis, and find the optimal chemotherapy regimen, possibly effective targeted therapy and even immunotherapy.
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Affiliation(s)
- Y Zuo
- Department of Medical Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - H Bai
- Department of Medical Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - J M Ying
- Department of Pathology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - J Wang
- Department of Medical Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
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12
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Zuo Y, Liu CY, Tang Q, Wang XJ. MiR-4282 is a tumor-suppressor gene for preventing metastasis of epithelial ovarian cancer by negatively regulating MIER1. Eur Rev Med Pharmacol Sci 2021; 25:6844-6852. [PMID: 34859847 DOI: 10.26355/eurrev_202111_27232] [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: 11/12/2022]
Abstract
OBJECTIVE To elucidate the biological role of miR-4282 in influencing metastasis of epithelial ovarian cancer (EOC) by regulating MIER1. PATIENTS AND METHODS MiR-4282 expressions in 45 cases of EOC specimens and normal controls were detected by quantitative Real Time-Polymerase Chain Reaction (qRT-PCR). The relationship between miR-4282 and clinical features in EOC patients, including pathological indicators and overall survival, was analyzed. After intervening miR-4282 level in SKOV3 and 3AO cells by plasmid transfection, changes in migratory and invasive abilities were determined by transwell assay and wound healing assay. The target gene of miR-4282 was observed by Dual-Luciferase reporter assay, followed by exploration of its involvement in EOC progression via rescue experiments. RESULTS MiR-4282 was downregulated in EOC specimens than normal controls. EOC patients expressing low level of miR-4282 had higher incidences of lymphatic metastasis and distant metastasis, as well as worse prognosis than those overexpressing miR-4282. Overexpression of miR-4282 in SKOV3 cells weakened metastatic ability, and conversely, knockdown of miR-4282 in 3AO cells yielded the promotive trends. MIER1 was confirmed to be the target gene binding miR-4282, which was highly expressed in EOC specimens. MIER1 was able to reverse the regulatory effect of miR-4282 on EOC cell metastasis. CONCLUSIONS Lowly expressed miR-4282 in EOC specimens is closely linked to the incidence of metastasis and overall survival. MiR-4282 prevents EOC metastasis by a negative regulation on MIER1.
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Affiliation(s)
- Y Zuo
- Department of Gynecology, Yantai Yuhuangding Hospital, Yantai, China.
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13
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Qiao G, Ning N, Zuo Y, Hu S, Yu Q, Liu Y. Direct training of hardware-friendly weight binarized spiking neural network with surrogate gradient learning towards spatio-temporal event-based dynamic data recognition. Neurocomputing 2021. [DOI: 10.1016/j.neucom.2021.06.070] [Citation(s) in RCA: 3] [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: 01/08/2023]
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14
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Wang J, Wang Y, Zuo Y, Duan J, Pan A, Li JM, Yan XX, Liu F. MFGE8 mitigates brain injury in a rat model of SAH by maintaining vascular endothelial integrity via TIGβ5/PI3K/CXCL12 signaling. Exp Brain Res 2021; 239:2193-2205. [PMID: 33991211 DOI: 10.1007/s00221-021-06111-x] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [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: 01/16/2021] [Accepted: 04/08/2021] [Indexed: 12/25/2022]
Abstract
Leaked blood components, injured endothelial cells, local inflammatory response and vasospasm may converge to promote microthrombosis following subarachnoid hemorrhage (SAH). Previously, we showed that the milk fat globule-epidermal growth factor 8 (MFGE8) can mitigate SAH-induced microthrombosis. This present study was aimed to explore the molecular pathway participated in MFGE8-dependent protection on vascular endothelium. Immunofluorescence, immunoblot and behavioral tests were used to determine the molecular partner and signaling pathway mediating the effect of MFGE8 in vascular endothelium in rats with experimental SAH and controls, together with the applications of RNA silencing and pharmacological intervention methods. Relative to control, recombinant human MFGE8 (rhMFGE8) treatment increased 5-bromo-2'-deoxyuridine (BrdU) labeled new endothelial cells, reduced TUNUL-positive endothelial cells and elevated the expression of phosphatidylinositol 3-kinase (PI3K) and chemokine (C-X-C motif) ligand 12 (CXCL12), in the brains of SAH rats. These effects were reversed by MFGE8 RNA silencing, as well as following cilengitide and wortmannin intervention. These results suggest that MFGE8 promotes endothelial regeneration and mitigates endothelial DNA damage through the activation of the TIGβ5/PI3K/CXCL12 signaling pathway.
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Affiliation(s)
- Jikai Wang
- Department of Neurosurgery, The Fifth Affiliated Hospital of Sun Yat-sen University, No. 52 Meihuadong Road, Zhuhai, 519000, Guangdong, China
| | - Yiping Wang
- Department of Neurosurgery, The Fifth Affiliated Hospital of Sun Yat-sen University, No. 52 Meihuadong Road, Zhuhai, 519000, Guangdong, China
| | - Yuchun Zuo
- Department of Neurosurgery, Xiangya Hospital, Central South University, Changsha, 410008, Hunan, China
| | - Jiajia Duan
- Department of Anatomy and Neurobiology, Xiangya School of Medicine, Central South University, Changsha, 410013, Hunan, China
| | - Aihua Pan
- Department of Anatomy and Neurobiology, Xiangya School of Medicine, Central South University, Changsha, 410013, Hunan, China
| | - Jian-Ming Li
- Department of Anatomy, School of Basic Sciences, Changsha Medical University, Changsha, 410219, Hunan, China
| | - Xiao-Xin Yan
- Department of Anatomy and Neurobiology, Xiangya School of Medicine, Central South University, Changsha, 410013, Hunan, China
| | - Fei Liu
- Department of Neurosurgery, The Fifth Affiliated Hospital of Sun Yat-sen University, No. 52 Meihuadong Road, Zhuhai, 519000, Guangdong, China.
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15
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Cheng WL, Liu XR, Zuo Y, Zheng W, Wu SS, Jiang B. [Effect of levothyroxine treatment on pregnancy outcomes in euthyroid women with thyroid autoantibody positive: a Meta-analysis]. Zhonghua Fu Chan Ke Za Zhi 2021; 56:58-63. [PMID: 33486929 DOI: 10.3760/cma.j.cn112141-20200312-00215] [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: 11/05/2022]
Abstract
Objective: To conduct a systematic review of the association of levothyroxine treatment with pregnancy outcomes in euthyroid women who are thyroid autoantibody positive. Methods: Medline, Excerpta Medica (EMBASE), Cochrane Library, China National Knowledge Infrastructure (CNKI), China Biology Medicine (CBM), Wanfang data and VIP database were searched from inception until Jan. 28, 2020. All published randomized controlled trials assessing the association of levothyroxine treatment with pregnancy outcomes in euthyroid women with thyroid autoantibody-positive were included. STATA 11.0 and RevMan 5.3 softwares were used to perform this Meta-analysis. Results: A total of 6 studies met the inclusion criteria, with 2 188 women randomized. Meta-analysis showed that there was no significantly association between miscarriage (OR=0.85, 95%CI: 0.65-1.11, P=0.234) and preterm birth (OR=0.79, 95%CI: 0.54-1.16, P=0.224) with levothyroxine treatment. Conclusions: Levothyroxine therapy could not reduce the risk of miscarriage and preterm birth in euthyroid women with thyroid autoantibody-positive. Therefore, levothyroxine should be used with caution for these pregnant women.
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Affiliation(s)
- W L Cheng
- Obstetrics and Gynecology Clinic and Key Laboratory of Birth Defects and Related Women and Children Diseases, West China Second Hospital of Sichuan University, Chengdu 610041, China
| | - X R Liu
- Obstetrics and Gynecology Clinic and Key Laboratory of Birth Defects and Related Women and Children Diseases, West China Second Hospital of Sichuan University, Chengdu 610041, China
| | - Y Zuo
- Obstetrics and Gynecology Clinic and Key Laboratory of Birth Defects and Related Women and Children Diseases, West China Second Hospital of Sichuan University, Chengdu 610041, China
| | - W Zheng
- Obstetrics and Gynecology Clinic and Key Laboratory of Birth Defects and Related Women and Children Diseases, West China Second Hospital of Sichuan University, Chengdu 610041, China
| | - S S Wu
- Obstetrics and Gynecology Clinic and Key Laboratory of Birth Defects and Related Women and Children Diseases, West China Second Hospital of Sichuan University, Chengdu 610041, China
| | - B Jiang
- Obstetrics and Gynecology Clinic and Key Laboratory of Birth Defects and Related Women and Children Diseases, West China Second Hospital of Sichuan University, Chengdu 610041, China
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16
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He M, Zuo X, Liu H, Wang W, Zhang Y, Fu Y, Zhen Q, Yu Y, Pan Y, Qin C, Li B, Yang R, Wu J, Huang Z, Ge H, Wu H, Xu Q, Zuo Y, Chen W, Qin Y, Liu Z, Chen S, Zhang H, Zhou F, Yan H, Yu Y, Yong L, Chen G, Liang B, Cornell RA, Zong L, Wang L, Zou D, Sun L, Bian Z. Genome-wide Analyses Identify a Novel Risk Locus for Nonsyndromic Cleft Palate. J Dent Res 2020; 99:1461-1468. [PMID: 32758111 DOI: 10.1177/0022034520943867] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
The 3 major subphenotypes observed in patients with nonsyndromic orofacial clefts (NSOFCs) are nonsyndromic cleft lip only (NSCLO), nonsyndromic cleft lip with palate (NSCLP), and nonsyndromic cleft palate only (NSCPO). However, the genetic architecture underlying NSCPO is largely unknown. Here we performed a 2-stage genome-wide association study (GWAS) on NSCPO and replication analyses of selected variants in other NSOFCs from the Chinese Han population. We identified a novel locus (15q24.3) and a known locus (1q32.2) where variants in or near the gene reached genome-wide significance (2.80 × 10-13 < P < 1.72 × 10-08) in a test for association with NSCPO in a case-control design. Although a variant from 15q24.3 was found to be significantly associated with both NSCPO and NSCLP, the direction of estimated effects on risk were opposite. Our functional annotation of the risk alleles within 15q24.3 coupled with previously established roles of the candidate genes within identified risk loci in periderm development, embryonic patterning, and/or regulation of cellular processes supports their involvement in palate development and the pathogenesis of cleft palate. Our study advances the understanding of the genetic basis of NSOFCs and provides novel insights into the pathogenesis of NSCPO.
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Affiliation(s)
- M He
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan, Hubei, China
| | - X Zuo
- Department of Dermatology, The First Affiliated Hospital of Anhui Medical University, Hefei, China.,Key Laboratory of Dermatology (Anhui Medical University), Ministry of Education, Hefei, China.,Key Laboratory of Major Autoimmune Diseases, Anhui Province, Hefei, China
| | - H Liu
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan, Hubei, China
| | - W Wang
- Department of Dermatology, The First Affiliated Hospital of Anhui Medical University, Hefei, China.,Key Laboratory of Dermatology (Anhui Medical University), Ministry of Education, Hefei, China.,Key Laboratory of Major Autoimmune Diseases, Anhui Province, Hefei, China
| | - Y Zhang
- Department of Dermatology, The First Affiliated Hospital of Anhui Medical University, Hefei, China.,Key Laboratory of Dermatology (Anhui Medical University), Ministry of Education, Hefei, China.,Key Laboratory of Major Autoimmune Diseases, Anhui Province, Hefei, China
| | - Y Fu
- Department of Oral and Maxillofacial Surgery, School and Hospital of Stomatology, Wuhan University, Wuhan, Hubei, China
| | - Q Zhen
- Department of Dermatology, The First Affiliated Hospital of Anhui Medical University, Hefei, China.,Key Laboratory of Dermatology (Anhui Medical University), Ministry of Education, Hefei, China.,Key Laboratory of Major Autoimmune Diseases, Anhui Province, Hefei, China
| | - Y Yu
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan, Hubei, China
| | - Y Pan
- Jiangsu Key Laboratory of Oral Diseases, School of Stomatology, Nanjing Medical University, Nanjing, Jiangsu, China
| | - C Qin
- Department of Oral and Maxillofacial Surgery, School and Hospital of Stomatology, Wuhan University, Wuhan, Hubei, China
| | - B Li
- Department of Dermatology, The First Affiliated Hospital of Anhui Medical University, Hefei, China.,Key Laboratory of Dermatology (Anhui Medical University), Ministry of Education, Hefei, China.,Key Laboratory of Major Autoimmune Diseases, Anhui Province, Hefei, China
| | - R Yang
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan, Hubei, China
| | - J Wu
- Department of Dermatology, The First Affiliated Hospital of Anhui Medical University, Hefei, China.,Key Laboratory of Dermatology (Anhui Medical University), Ministry of Education, Hefei, China.,Key Laboratory of Major Autoimmune Diseases, Anhui Province, Hefei, China
| | - Z Huang
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan, Hubei, China
| | - H Ge
- Department of Dermatology, The First Affiliated Hospital of Anhui Medical University, Hefei, China.,Key Laboratory of Dermatology (Anhui Medical University), Ministry of Education, Hefei, China.,Key Laboratory of Major Autoimmune Diseases, Anhui Province, Hefei, China
| | - H Wu
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan, Hubei, China
| | - Q Xu
- Department of Dermatology, The First Affiliated Hospital of Anhui Medical University, Hefei, China.,Key Laboratory of Dermatology (Anhui Medical University), Ministry of Education, Hefei, China.,Key Laboratory of Major Autoimmune Diseases, Anhui Province, Hefei, China
| | - Y Zuo
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan, Hubei, China
| | - W Chen
- Department of Dermatology, The First Affiliated Hospital of Anhui Medical University, Hefei, China.,Key Laboratory of Dermatology (Anhui Medical University), Ministry of Education, Hefei, China.,Key Laboratory of Major Autoimmune Diseases, Anhui Province, Hefei, China
| | - Y Qin
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan, Hubei, China
| | - Z Liu
- Stomatological Hospital of Nanyang, Nanyang, Henan, China
| | - S Chen
- Department of Dermatology, The First Affiliated Hospital of Anhui Medical University, Hefei, China.,Key Laboratory of Dermatology (Anhui Medical University), Ministry of Education, Hefei, China.,Key Laboratory of Major Autoimmune Diseases, Anhui Province, Hefei, China
| | - H Zhang
- Department of Dermatology, The First Affiliated Hospital of Anhui Medical University, Hefei, China.,Key Laboratory of Dermatology (Anhui Medical University), Ministry of Education, Hefei, China.,Key Laboratory of Major Autoimmune Diseases, Anhui Province, Hefei, China
| | - F Zhou
- Department of Dermatology, The First Affiliated Hospital of Anhui Medical University, Hefei, China.,Key Laboratory of Dermatology (Anhui Medical University), Ministry of Education, Hefei, China.,Key Laboratory of Major Autoimmune Diseases, Anhui Province, Hefei, China
| | - H Yan
- Stomatological Hospital of Xiangyang, Xiangyang, Hubei, China
| | - Y Yu
- Department of Dermatology, The First Affiliated Hospital of Anhui Medical University, Hefei, China.,Key Laboratory of Dermatology (Anhui Medical University), Ministry of Education, Hefei, China.,Key Laboratory of Major Autoimmune Diseases, Anhui Province, Hefei, China
| | - L Yong
- Department of Dermatology, The First Affiliated Hospital of Anhui Medical University, Hefei, China.,Key Laboratory of Dermatology (Anhui Medical University), Ministry of Education, Hefei, China.,Key Laboratory of Major Autoimmune Diseases, Anhui Province, Hefei, China
| | - G Chen
- Department of Dermatology, The First Affiliated Hospital of Anhui Medical University, Hefei, China.,Key Laboratory of Dermatology (Anhui Medical University), Ministry of Education, Hefei, China.,Key Laboratory of Major Autoimmune Diseases, Anhui Province, Hefei, China
| | - B Liang
- Department of Dermatology, The First Affiliated Hospital of Anhui Medical University, Hefei, China.,Key Laboratory of Dermatology (Anhui Medical University), Ministry of Education, Hefei, China.,Key Laboratory of Major Autoimmune Diseases, Anhui Province, Hefei, China
| | - R A Cornell
- Department of Anatomy and Cell Biology, College of Medicine, University of Iowa, Iowa City, IA, USA
| | - L Zong
- Nanjing Drum Tower Hospital, Nanjing University Medical School, Nanjing, China
| | - L Wang
- Jiangsu Key Laboratory of Oral Diseases, School of Stomatology, Nanjing Medical University, Nanjing, Jiangsu, China
| | - D Zou
- Department of Oral Surgery, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai Key Laboratory of Stomatology, National Clinical Research Center of Stomatology, Shanghai, China
| | - L Sun
- Department of Dermatology, The First Affiliated Hospital of Anhui Medical University, Hefei, China.,Key Laboratory of Dermatology (Anhui Medical University), Ministry of Education, Hefei, China.,Key Laboratory of Major Autoimmune Diseases, Anhui Province, Hefei, China
| | - Z Bian
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan, Hubei, China
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17
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Jang S, Suto Y, Liu J, Liu Q, Zuo Y, Duy PN, Miura T, Abe Y, Hamasaki K, Suzuki K, Kodama S. CORRIGENDUM TO: CAPABILITIES OF THE ARADOS-WG03 REGIONAL NETWORK FOR LARGE-SCALE RADIOLOGICAL AND NUCLEAR EMERGENCY SITUATIONS IN ASIA. Radiat Prot Dosimetry 2020; 188:270. [PMID: 32459335 DOI: 10.1093/rpd/ncaa079] [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] [Subscribe] [Scholar Register] [Received: 08/05/2019] [Revised: 01/13/2020] [Accepted: 02/19/2020] [Indexed: 06/11/2023]
Affiliation(s)
- S Jang
- Korea Institute of Radiological and Medical Sciences (KIRAMS), Seoul, South Korea
| | - Y Suto
- National Institute of Radiological Sciences (NIRS), National Institute for Quantum and Radiological Science and Technology (QST), Chiba, Japan
| | - J Liu
- National Institute of Radiation Protection (NIRP), China CDC, Beijing, China
| | - Q Liu
- National Institute of Radiation Protection (NIRP), China CDC, Beijing, China
| | - Y Zuo
- China Institute of Radiation Protection (CIRP), China National Nuclear Corporation (CNNC), Taiyuen, China
| | - P N Duy
- Nuclear Research Institute (NRI), Viet Nam Atomic Energy Commission, VINATOM, Dalat, Viet Nam
| | - T Miura
- Hirosaki University, Hirosaki, Japan
| | - Y Abe
- Fukushima Medical University, Fukushima, Japan
| | - K Hamasaki
- Radiation Effects Research Foundation (RERF), Hiroshima, Japan
| | - K Suzuki
- agasaki University, Nagasaki, Japan
| | - S Kodama
- Korea Institute of Radiological and Medical Sciences (KIRAMS), Seoul, South Korea
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18
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Ocak U, Eser Ocak P, Huang L, Xu W, Zuo Y, Li P, Gamdzyk M, Zuo G, Mo J, Zhang G, Zhang JH. Inhibition of mast cell tryptase attenuates neuroinflammation via PAR-2/p38/NFκB pathway following asphyxial cardiac arrest in rats. J Neuroinflammation 2020; 17:144. [PMID: 32366312 PMCID: PMC7199326 DOI: 10.1186/s12974-020-01808-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2019] [Accepted: 04/08/2020] [Indexed: 02/07/2023] Open
Abstract
Background Cardiac arrest survivors suffer from neurological dysfunction including cognitive impairment. Cerebral mast cells, the key regulators of neuroinflammation contribute to neuroinflammation-associated cognitive dysfunction. Mast cell tryptase was demonstrated to have a proinflammatory effect on microglia via the activation of microglial protease-activated receptor-2 (PAR-2). This study investigated the potential anti-neuroinflammatory effect of mast cell tryptase inhibition and the underlying mechanism of PAR-2/p-p38/NFκB signaling following asphyxia-induced cardiac arrest in rats. Methods Adult male Sprague-Dawley rats resuscitated from 10 min of asphyxia-induced cardiac arrest were randomized to four separate experiments including time-course, short-term outcomes, long-term outcomes and mechanism studies. The effect of mast cell tryptase inhibition on asphyxial cardiac arrest outcomes was examined after intranasal administration of selective mast cell tryptase inhibitor (APC366; 50 μg/rat or 150 μg/rat). AC55541 (selective PAR-2 activator; 30 μg/rat) and SB203580 (selective p38 inhibitor; 300 μg/rat) were used for intervention. Short-term neurocognitive functions were evaluated using the neurological deficit score, number of seizures, adhesive tape removal test, and T-maze test, while long-term cognitive functions were evaluated using the Morris water maze test. Hippocampal neuronal degeneration was evaluated by Fluoro-Jade C staining. Results Mast cell tryptase and PAR-2 were dramatically increased in the brain following asphyxia-induced cardiac arrest. The inhibition of mast cell tryptase by APC366 improved both short- and long-term neurological outcomes in resuscitated rats. Such behavioral benefits were associated with reduced expressions of PAR-2, p-p38, NFκB, TNF-α, and IL-6 in the brain as well as less hippocampal neuronal degeneration. The anti-neuroinflammatory effect of APC366 was abolished by AC55541, which when used alone, indeed further exacerbated neuroinflammation, hippocampal neuronal degeneration, and neurologic deficits following cardiac arrest. The deleterious effects aggregated by AC55541 were minimized by p38 inhibitor. Conclusions The inhibition of mast cell tryptase attenuated neuroinflammation, led to less hippocampal neuronal death and improved neurological deficits following cardiac arrest. This effect was at least partly mediated via inhibiting the PAR-2/p-p38/NFκB signaling pathway. Thus, mast cell tryptase might be a novel therapeutic target in the management of neurological impairment following cardiac arrest.
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Affiliation(s)
- Umut Ocak
- Department of Physiology and Pharmacology, Loma Linda University School of Medicine, Loma Linda, CA, 92350, USA.,Department of Emergency Medicine, Bursa Yuksek Ihtisas Training and Research Hospital, University of Health Sciences, 16310, Bursa, Turkey.,Department of Emergency Medicine, Bursa City Hospital, 16110, Bursa, Turkey
| | - Pinar Eser Ocak
- Department of Physiology and Pharmacology, Loma Linda University School of Medicine, Loma Linda, CA, 92350, USA.,Department of Neurosurgery, Uludag University School of Medicine, 16069, Bursa, Turkey
| | - Lei Huang
- Department of Physiology and Pharmacology, Loma Linda University School of Medicine, Loma Linda, CA, 92350, USA.,Department of Neurosurgery, Loma Linda University School of Medicine, Loma Linda, CA, 92350, USA
| | - Weilin Xu
- Department of Physiology and Pharmacology, Loma Linda University School of Medicine, Loma Linda, CA, 92350, USA.,Department of Neurosurgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Zhejiang, 310009, Hangzhou, China
| | - Yuchun Zuo
- Department of Physiology and Pharmacology, Loma Linda University School of Medicine, Loma Linda, CA, 92350, USA.,Department of Neurosurgery, The Third Xiangya Hospital, Central South University, Changsha, 410013, Hunan, China
| | - Peng Li
- Department of Physiology and Pharmacology, Loma Linda University School of Medicine, Loma Linda, CA, 92350, USA
| | - Marcin Gamdzyk
- Department of Physiology and Pharmacology, Loma Linda University School of Medicine, Loma Linda, CA, 92350, USA
| | - Gang Zuo
- Department of Physiology and Pharmacology, Loma Linda University School of Medicine, Loma Linda, CA, 92350, USA.,Department of Neurosurgery, The Affiliated Taicang Hospital, Soochow University, Suzhou, Taicang, 215400, Jiangsu, China
| | - Jun Mo
- Department of Physiology and Pharmacology, Loma Linda University School of Medicine, Loma Linda, CA, 92350, USA.,Department of Neurosurgery, The Fourth Affiliated Hospital, Zhejiang University School of Medicine, Yiwu, Zhejiang, 322000, China
| | - Guangyu Zhang
- Mass Spectrometry Core Facility, Loma Linda University School of Medicine, Loma Linda, CA, 92350, USA
| | - John H Zhang
- Department of Physiology and Pharmacology, Loma Linda University School of Medicine, Loma Linda, CA, 92350, USA. .,Department of Neurosurgery, Loma Linda University School of Medicine, Loma Linda, CA, 92350, USA. .,Department of Anesthesiology, Loma Linda University School of Medicine, Loma Linda, CA, 92350, USA. .,Department of Neurology, Loma Linda University School of Medicine, Loma Linda, CA, 92350, USA.
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Zuo Y, He T, Liao P, Zhuang K, Yan X, Liu F. 17-Allylamino-Demethoxygeldanamycin Ameliorate Microthrombosis Via HSP90/RIP3/NLRP3 Pathway After Subarachnoid Hemorrhage in Rats. Acta Neurochir Suppl 2020; 127:69-75. [PMID: 31407066 DOI: 10.1007/978-3-030-04615-6_12] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Abstract
BACKGROUND Subarachnoid hemorrhage (SAH) is a severe and emergent cerebrovascular disease, the prognosis of which usually very poor. Microthrombi formation highlighted with inflammation occurs early after SAH. As the main cause of DCI, microthrombosis associated with the prognosis of SAH. The aim of this study was to show HSP90 inhibitor 17-AAG effect on microthrombosis after SAH in rats. METHODS Ninety-five SD rats were used for the experiment. For time course study, the rats were randomly divided into five groups: sham group and SAH group with different time point (1d, 2d, 3d, 5d). Endovascular perforation method was conducted for SAH model. Neurological score, SAH grade, and mortality were measured after SAH. The samples of the left hemisphere brain were collected. The expression of HSP90 was detected by Western blot. The microthrombosis after SAH in rats' brain was detected by immunohistochemistry. For mechanism study, rats were randomly divided into three groups: sham, SAH + vehicle, and SAH +17-AAG (n = 6/group). 17-AAG was given by intraperitoneal injection (80 mg/kg) 1 h after SAH. Neurological function were measured at 24 h after SAH. The expression of RIP3, NLRP3, ASC, and IL-1β was measured by Western blot. Microthrombosis was detected by immunohistochemistry. RESULTS Our results showed that the HSP90 protein level increased and peaked at 2 days after SAH. Microthrombosis caused by SAH was increased in 1 day and peaked at 2 days after SAH. Administration HSP90 specific inhibitor 17-AAG reduced expression of RIP3, NLRP3, ASC, and IL-1β, reduced microthrombosis after SAH, and improved neurobehavior when compared to vehicle group. CONCLUSIONS 17-AAG can ameliorate microthrombosis via HSP90/RIP3/NLRP3 pathway and improve neurobehavior after SAH.
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Affiliation(s)
- Yuchun Zuo
- Department of Neurosurgery, The Third Xiangya Hospital, Central South University, Changsha, China
| | - Tibiao He
- Department of Neurosurgery, The Third Xiangya Hospital, Central South University, Changsha, China
| | - Peiqiang Liao
- Department of Neurosurgery, The Third Xiangya Hospital, Central South University, Changsha, China
| | - Kai Zhuang
- Department of Neurosurgery, The Third Xiangya Hospital, Central South University, Changsha, China
| | - Xiaoxin Yan
- Department of Anatomy, The XiangYa Medical School, Central South University, Changsha, China
| | - Fei Liu
- Department of Neurosurgery, The Third Xiangya Hospital, Central South University, Changsha, China.
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20
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Xu W, Mo J, Ocak U, Travis ZD, Enkhjargal B, Zhang T, Wu P, Peng J, Li T, Zuo Y, Shao A, Tang J, Zhang J, Zhang JH. Activation of Melanocortin 1 Receptor Attenuates Early Brain Injury in a Rat Model of Subarachnoid Hemorrhage viathe Suppression of Neuroinflammation through AMPK/TBK1/NF-κB Pathway in Rats. Neurotherapeutics 2020; 17:294-308. [PMID: 31486022 PMCID: PMC7007470 DOI: 10.1007/s13311-019-00772-x] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Neuroinflammation plays a vital role in early brain injury (EBI) following subarachnoid hemorrhage (SAH). The hypothesis of this study was that activation of melanocortin 1 receptor (MC1R) with BMS-470539 attenuates EBI by suppression of neuroinflammation after SAH. We utilized BMS-470539, MSG-606, and MRT-68601 to verify the neuroprotective effects of MC1R. We evaluated brain water content, short-term and long-term neurobehavior after SAH. Western blotting and immunofluorescence staining were utilized to assess the changes of protein levels. The results of western blotting suggested that the expressions of MC1R, phosphorylated-adenosine monophosphate-activated protein kinase (p-AMPK), and phosphorylated-TANK binding kinase 1 (p-TBK1) were increased and reached their peak points at 24 h following SAH. Moreover, BMS-470539 treatment notably attenuated neurological deficits caused by SAH, and also notably improved long-term spatial learning and memory abilities after SAH. The underlying mechanisms of the neuroprotection of BMS-470539 involved the suppression of microglia activation, promotion of CD206+ microglia transformation and reduction of neutrophil infiltration by increasing the levels of p-AMPK and p-TBK1 while decreasing the levels of NF-κB, IL-1β, and TNFα. The neuroprotective effects of BMS-470539 were significantly abolished by MSG-606 and MRT-68601. The activation of MC1R with BMS-470539 notably attenuates EBI after SAH by suppression of microglial activation and neutrophil infiltration via the AMPK/TBK1/NF-κB signaling pathway.
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Affiliation(s)
- Weilin Xu
- Department of Neurosurgery, The second Affiliated Hospital, Zhejiang University School of Medicine, 88 Jiefang Rd, Hangzhou, 310009, Zhejiang, China
- Department of Physiology & Pharmacology, Loma Linda University, Loma Linda, CA, 92350, USA
| | - Jun Mo
- Department of Neurosurgery, The second Affiliated Hospital, Zhejiang University School of Medicine, 88 Jiefang Rd, Hangzhou, 310009, Zhejiang, China
- Department of Neurosurgery, The Fourth Affiliated Hospital, Zhejiang University School of Medicine, 88 Jiefang Rd, Hangzhou, 310009, Zhejiang, China
| | - Umut Ocak
- Department of Physiology & Pharmacology, Loma Linda University, Loma Linda, CA, 92350, USA
| | - Zachary D Travis
- Department of Earth and Biological Sciences, Loma Linda University, Loma Linda, CA, 92350, USA
| | - Budbazar Enkhjargal
- Department of Physiology & Pharmacology, Loma Linda University, Loma Linda, CA, 92350, USA
| | - Tongyu Zhang
- Department of Physiology & Pharmacology, Loma Linda University, Loma Linda, CA, 92350, USA
| | - Pei Wu
- Department of Physiology & Pharmacology, Loma Linda University, Loma Linda, CA, 92350, USA
| | - Jianhua Peng
- Department of Physiology & Pharmacology, Loma Linda University, Loma Linda, CA, 92350, USA
| | - Tao Li
- Department of Physiology & Pharmacology, Loma Linda University, Loma Linda, CA, 92350, USA
| | - Yuchun Zuo
- Department of Physiology & Pharmacology, Loma Linda University, Loma Linda, CA, 92350, USA
| | - Anwen Shao
- Department of Neurosurgery, The second Affiliated Hospital, Zhejiang University School of Medicine, 88 Jiefang Rd, Hangzhou, 310009, Zhejiang, China
| | - Jiping Tang
- Department of Physiology & Pharmacology, Loma Linda University, Loma Linda, CA, 92350, USA
| | - Jianmin Zhang
- Department of Neurosurgery, The second Affiliated Hospital, Zhejiang University School of Medicine, 88 Jiefang Rd, Hangzhou, 310009, Zhejiang, China.
- Brain Research Institute, Zhejiang University, Hangzhou, 310009, Zhejiang, China.
| | - John H Zhang
- Department of Physiology & Pharmacology, Loma Linda University, Loma Linda, CA, 92350, USA.
- Department of Neurosurgery, Loma Linda University, Loma Linda, CA, 92350, USA.
- Department of Anesthesiology, Loma Linda University, Loma Linda, CA, 92350, USA.
- Department of Physiology and Pharmacology, Loma Linda University, Risley Hall, Room 219, 11041 Campus St, Loma Linda, CA, 92354, USA.
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Zuo Y, Sakatsume K, Sasaki K, Nakajima S, Fukushima N, Horiuchi H, Saiki Y, Lvadavws I. Severity of vWF Degradation Depends on LVAD types: Preliminary Results from a Multicenter Prospective Study. Thorac Cardiovasc Surg 2020. [DOI: 10.1055/s-0040-1705363] [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: 10/24/2022]
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Jang S, Suto Y, Liu J, Liu Q, Zuo Y, Duy PN, Miura T, Abe Y, Hamasaki K, Suzuki K, Kodama S. CAPABILITIES OF THE ARADOS-WG03 REGIONAL NETWORK FOR LARGE-SCALE RADIOLOGICAL AND NUCLEAR EMERGENCY SITUATIONS IN ASIA. Radiat Prot Dosimetry 2019; 186:139-142. [PMID: 30576530 DOI: 10.1093/rpd/ncy279] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/20/2018] [Revised: 11/27/2018] [Accepted: 12/02/2018] [Indexed: 06/09/2023]
Abstract
In 2015, the Asian Radiation Dosimetry Group established a regional network of biological dosimetry laboratories known as the ARADOS-WG03 (Working Group 03; Biological Dosimetry). A survey was conducted in 2017 to evaluate the capabilities and capacities of the participating laboratories for emergency preparedness and responses in large-scale nuclear and/or radiological incidents. The results of this survey were identified and assessed. The data provide important information on the current state of emergency cytogenetic biological dosimetry capabilities in the Asian region.
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Affiliation(s)
- S Jang
- Korea Institute of Radiological and Medical Sciences (KIRAMS), Seoul, South Korea
| | - Y Suto
- National Institute of Radiological Sciences (NIRS), National Institute for Quantum and Radiological Science and Technology (QST), Chiba, Japan
| | - J Liu
- National Institute of Radiation Protection (NIRP), China CDC, Beijing, China
| | - Q Liu
- National Institute of Radiation Protection (NIRP), China CDC, Beijing, China
| | - Y Zuo
- China Institute of Radiation Protection (CIRP), China National Nuclear Corporation (CNNC), Taiyuen, China
| | - P N Duy
- Nuclear Research Institute (NRI), Viet Nam Atomic Energy Commission, VINATOM, Dalat, Viet Nam
| | - T Miura
- Hirosaki University, Hirosaki, Japan
| | - Y Abe
- Fukushima Medical University, Fukushima, Japan
| | - K Hamasaki
- Radiation Effects Research Foundation (RERF), Hiroshima, Japan
| | - K Suzuki
- Nagasaki University, Nagasaki, Japan
| | - S Kodama
- Osaka Prefacture University, Osaka, Japan
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Wang J, Zuo Y, Zhuang K, Luo K, Yan X, Li J, Zhang JH, Liu F. Recombinant Human Milk Fat Globule-Epidermal Growth Factor 8 Attenuates Microthrombosis after Subarachnoid Hemorrhage in Rats. J Stroke Cerebrovasc Dis 2019; 29:104536. [PMID: 31883781 DOI: 10.1016/j.jstrokecerebrovasdis.2019.104536] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [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: 09/10/2019] [Revised: 10/28/2019] [Accepted: 11/09/2019] [Indexed: 01/09/2023] Open
Abstract
BACKGROUND Microthrombosis after subarachnoid hemorrhage has an adverse effect on prognosis. Milk fat globule-epidermal growth factor 8 promotes phagocytosis of phagocytic cells and may reduce microthrombosis. This study investigated the effects of recombinant human milk fat globule-epidermal growth factor 8 on microthrombosis and neurological function after subarachnoid hemorrhage. METHODS Rats subarachnoid hemorrhage model was induced by intravascular puncture method. Western blot was performed to measure the expression of endogenous milk fat globule-epidermal growth factor 8 after subarachnoid hemorrhage. Microthrombosis was quantified by microthrombi count using immunohistochemistry and immunofluorescence. The neuroprotective effect of recombinant human milk fat globule-epidermal growth factor 8 administration was evaluated by modified Garcia score, beam balance, Rotarod test, and Morris water maze. RESULTS Endogenous milk fat globule-epidermal growth factor 8 protein level increased after subarachnoid hemorrhage. Microthrombosis was significantly increased in subarachnoid hemorrhage rats brain, while recombinant human milk fat globule-epidermal growth factor 8 dramatically reduced microthrombosis as well as improve short- and long- term neurobehavior after subarachnoid hemorrhage. CONCLUSIONS Recombinant human milk fat globule-epidermal growth factor 8 reduces microthrombosis and improves neurological function after subarachnoid hemorrhage, which may be an effective strategy for treating subarachnoid hemorrhage.
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Affiliation(s)
- Jikai Wang
- Department of Neurosurgery, Third XiangYa Hospital, Central South University, Changsha, Hunan, China
| | - Yuchun Zuo
- Department of Neurosurgery, XiangYa Hospital, Central South University, Changsha, Hunan, China
| | - Kai Zhuang
- Department of Neurosurgery, Third XiangYa Hospital, Central South University, Changsha, Hunan, China
| | - Kui Luo
- Department of Neurosurgery, Third XiangYa Hospital, Central South University, Changsha, Hunan, China
| | - Xiaoxin Yan
- Department of Anatomy and Neurobiology, XiangYa School of Medicine, Central South University, Changsha, Hunan, China
| | - Jianming Li
- Neuroscience Research Center, Changsha Medical University, Changsha, Hunan, China
| | - John H Zhang
- Department of Physiology and Pharmacology, Loma Linda University, Loma Linda, California.
| | - Fei Liu
- Department of Neurosurgery, Third XiangYa Hospital, Central South University, Changsha, Hunan, China.
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Zuo Y, Zheng W, Liu J, Tang Q, Wang SS, Yang XS. MiR-34a-5p/PD-L1 axis regulates cisplatin chemoresistance of ovarian cancer cells. Neoplasma 2019; 67:93-101. [PMID: 31777260 DOI: 10.4149/neo_2019_190202n106] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2019] [Accepted: 06/26/2019] [Indexed: 11/08/2022]
Abstract
Ovarian cancer is the most lethal gynecologic malignancy in women with an increasing number of cases worldwide. Chemoresistance is the main obstacle for ovarian cancer treatment during clinical therapy. Previous studies found that programmed cell death 1 ligand 1 (PD-L1) was associated with chemoresistance of cancer. However, there were little reports about the function of PD-L1 involved in chemoresistance of ovarian cancer. In our study, cisplatin (DDP)-resistant SKOV3 and A2780 ovarian cancer cell lines (SKOV3/DDP and A2780/DDP) were established. We found that the expression of PD-L1 was increased and miR-34a-5p was decreased in DDP-resistant cells. PD-L1 silencing inhibited chemoresistance of DDP-resistant ovarian cancer cells to DDP, as evidenced by decreased proliferation, G1-phase cell cycle arrest and increased apoptosis. Western blot assay showed that in the presence of DDP, PD-L1 silencing decreased multidrug resistance protein 1 and Cyclin D1 protein levels, whereas increased cleaved-caspase-3 and cleaved-PARP protein levels in these cells. Moreover, we demonstrated that miR-34a-5p negatively regulated the expression of PD-L1 by targeting its 3'-untranslated region. The effects of miR-34a-5p mimic on DDP-treated SKOV3/DDP cells were reversed by the overexpression of PD-L1. Moreover, the tumorigenicity of DDP-resistant ovarian cancer cells in nude mice treated with DDP was attenuated by miR-34a-5p in vivo. The combined data indicate that miR-34a-5p/PD-L1 axis regulates DDP chemoresistance of ovarian cancer cells, providing a deeper insight into the treatment for ovarian cancer.
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Affiliation(s)
- Y Zuo
- Department of Obstetrics and Gynecology, Qilu Hospital of Shandong University, Jinan, China.,Department of Gynecology, Affiliated Yantai Yuhuangding Hospital, Medical College of Qingdao University, Yantai, China
| | - W Zheng
- Department of Gynecology, Affiliated Yantai Yuhuangding Hospital, Medical College of Qingdao University, Yantai, China
| | - J Liu
- Department of Gynecology, Affiliated Yantai Yuhuangding Hospital, Medical College of Qingdao University, Yantai, China
| | - Q Tang
- Department of Gynecology, Affiliated Yantai Yuhuangding Hospital, Medical College of Qingdao University, Yantai, China
| | - S S Wang
- Department of Gynecology, Affiliated Yantai Yuhuangding Hospital, Medical College of Qingdao University, Yantai, China
| | - X S Yang
- Department of Obstetrics and Gynecology, Qilu Hospital of Shandong University, Jinan, China
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Zhang X, Wang A, Zhang J, Singh M, Liu D, Zuo Y, Wu L, Song M, Wang W, Feigin V, Wang Y, Zheng D. Association of plasma C-reactive protein with ischaemic stroke: a Mendelian randomization study. Eur J Neurol 2019; 27:565-571. [PMID: 31692152 DOI: 10.1111/ene.14113] [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: 07/18/2019] [Accepted: 11/04/2019] [Indexed: 12/30/2022]
Abstract
BACKGROUND AND PURPOSE Elevated C-reactive protein (CRP) is associated with an increased risk of ischaemic stroke (IS). However, the causality of this association is uncertain. The aim is to investigate whether genetically raised plasma CRP concentration levels are associated with IS on the basis of the Mendelian randomization method. METHODS Based on the National Center for Biotechnology Information single nucleotide polymorphism (SNP) database, the Chinese online genetic database as well as previously published studies, four CRP-associated SNP alleles (rs1130864, rs1205, rs876537 and rs3093059) with minor allele frequency ≥0.15 were selected and the concentration levels of CRP were measured in 378 first-ever IS patients and 613 healthy controls. RESULTS Three SNPs were chosen and used as instrumental variables. The adjusted odds ratios (ORs) [95% confidence interval (95% CI)] of IS per addition of the modelled allele were 1.07 (0.79-1.45) for rs876537, 0.99 (0.73-1.35) for rs1205 and 1.08 (0.71-1.65) for rs3093059. The OR (95% CI) of IS for plasma CRP ≥2.0 mg/l was 2.19 (1.06-4.53) compared with <2.0 mg/l. The adjusted OR (95% CI) of IS per genetically predicted 10% higher CRP concentration, based on the three SNPs as the instruments, was 1.02 (0.94-1.11). Furthermore, similar results were obtained with adjusted ORs (95% CI) of 1.00 (0.88-1.13) and 1.04 (0.93-1.16), respectively, for large-artery atherosclerosis and small-artery occlusion per genetically predicted 10% higher CRP concentration. CONCLUSIONS This Mendelian randomization study provides no clear support that elevated CRP concentration is causally associated with the risk of IS.
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Affiliation(s)
- X Zhang
- Department of Epidemiology and Health Statistics, School of Public Health, Beijing Municipal Key Laboratory of Clinical Epidemiology, Capital Medical University, Beijing, China
| | - A Wang
- China National Clinical Research Center for Neurological Diseases, Beijing Tiantan Hospital, Capital Medical University, Beijing, China.,Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - J Zhang
- Department of Epidemiology and Health Statistics, School of Public Health, Beijing Municipal Key Laboratory of Clinical Epidemiology, Capital Medical University, Beijing, China
| | - M Singh
- School of Medical and Health Sciences, Edith Cowan University, Joondalup, WA, Australia
| | - D Liu
- Department of Epidemiology and Health Statistics, School of Public Health, Beijing Municipal Key Laboratory of Clinical Epidemiology, Capital Medical University, Beijing, China
| | - Y Zuo
- China National Clinical Research Center for Neurological Diseases, Beijing Tiantan Hospital, Capital Medical University, Beijing, China.,Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - L Wu
- Department of Epidemiology and Health Statistics, School of Public Health, Beijing Municipal Key Laboratory of Clinical Epidemiology, Capital Medical University, Beijing, China
| | - M Song
- Department of Epidemiology and Health Statistics, School of Public Health, Beijing Municipal Key Laboratory of Clinical Epidemiology, Capital Medical University, Beijing, China
| | - W Wang
- School of Medical and Health Sciences, Edith Cowan University, Joondalup, WA, Australia
| | - V Feigin
- National Institute for Stroke and Applied Neurosciences, Auckland University of Technology, Auckland, New Zealand
| | - Y Wang
- Department of Epidemiology and Health Statistics, School of Public Health, Beijing Municipal Key Laboratory of Clinical Epidemiology, Capital Medical University, Beijing, China
| | - D Zheng
- Department of Epidemiology and Health Statistics, School of Public Health, Beijing Municipal Key Laboratory of Clinical Epidemiology, Capital Medical University, Beijing, China
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Zuo Y. The role of adiponectin gene mediated by NF-κB signaling pathway in the pathogenesis of type 2 diabetes. Eur Rev Med Pharmacol Sci 2019; 22:1106-1112. [PMID: 29509263 DOI: 10.26355/eurrev_201802_14398] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [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 role of adiponectin (ADPN) gene mediated by NF-κB signaling pathway in the pathogenesis of type 2 diabetes (T2DM). PATIENTS AND METHODS The levels of expression of ADPN were measured by fluorescence quantitative PCR technology, enzyme-linked immunosorbent assay, Western-blotting and immunohistochemistry in 78 patients with type 2 diabetes. RESULTS Compared with the normal population, the levels of expression of ADPN and NF-κB mRNA in the blood of patients with type 2 diabetes were significantly reduced (p < 0.05). The detection of ADPN gene protein expression in normal population and patients with type 2 diabetes by enzyme-linked immunosorbent assay showed that ADPN gene protein expression in type 2 diabetic patients (1.26 ± 0.73) µg/l was significantly lower (p < 0.05) than ADPN gene protein expression of the normal population (3.26 ± 1.25) µg/l. At the same time, the detection of the expression of NF-κB gene showed that the protein expression in type 2 diabetic patients (0.58 ± 0.15) µg/l was significantly lower (p < 0.05) than that in the normal population (1.67 ± 1.04) µg/l. The results of Western-blotting were consistent with the results of enzyme-linked immunosorbent assay. Immunohistochemical results also showed that the percentage of ADPN positive cells in patients with type 2 diabetes (25.47%) was significantly lower (p < 0.05) than that in the normal population (79.47%). CONCLUSIONS ADPN gene in the human body can be involved in the pathogenesis of T2DM through the NF-κB signaling pathway.
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Affiliation(s)
- Y Zuo
- Emergency Department, Third Xiangya Hospital of Central South University, Changsha, Hunan Province, Xiangya, China.
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Peng J, Zuo Y, Huang L, Okada T, Liu S, Zuo G, Zhang G, Tang J, Xia Y, Zhang JH. Activation of GPR30 with G1 attenuates neuronal apoptosis via src/EGFR/stat3 signaling pathway after subarachnoid hemorrhage in male rats. Exp Neurol 2019; 320:113008. [DOI: 10.1016/j.expneurol.2019.113008] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2019] [Revised: 05/16/2019] [Accepted: 07/05/2019] [Indexed: 12/21/2022]
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Chen S, Zuo Y, Huang L, Sherchan P, Zhang J, Yu Z, Peng J, Zhang J, Zhao L, Doycheva D, Liu F, Zhang JH, Xia Y, Tang J. The MC 4 receptor agonist RO27-3225 inhibits NLRP1-dependent neuronal pyroptosis via the ASK1/JNK/p38 MAPK pathway in a mouse model of intracerebral haemorrhage. Br J Pharmacol 2019; 176:1341-1356. [PMID: 30811584 DOI: 10.1111/bph.14639] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2018] [Revised: 01/07/2019] [Accepted: 02/05/2019] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND AND PURPOSE Inflammasome-mediated pyroptosis is an important neuronal cell death mechanism. Previous studies reported that activation of melanocortin MC4 receptor exerted neuroprotection in several neurological diseases. Here, we have investigated the role of MC4 receptor activation with RO27-3225 in suppressing neuronal pyroptosis after experimental intracerebral haemorrhage (ICH) and the underlying mechanism. EXPERIMENTAL APPROACH One hundred and sixty-nine male CD1 mice were used. ICH was induced by injection of bacterial collagenase into the right-side basal ganglia. RO27-3225, a selective agonist of MC4 receptor, was injected intraperitoneally at 1 hr after ICH. To elucidate the underlying mechanism, we used the specific MC4 receptor antagonist HS024 and NQDI-1, a specific inhibitor of the apoptosis signalling-regulating kinase 1 (ASK1). Neurological tests, Western blot, Fluoro-Jade C, TUNEL, and immunofluorescence staining were conducted. KEY RESULTS Expression of MC4 receptor and the NOD-like receptor family, pyrin domain containing 1 (NLRP1) inflammasome in brain were increased after ICH. RO27-3225 treatment decreased neuronal pyroptosis and neurobehavioural deficits at 24 and 72 hr after ICH. RO27-3225 reduced the expression of p-ASK1, p-JNK, p-p38 MAPK, NLRP1 inflammasome, cleaved caspase-1, and IL-1β after ICH. HS024 pretreatment prevented the effects of RO27-3225. Similar to RO27-3225, NQDI-1 alone improved neurological functions and down-regulated ASK1/JNK/p38MAPK expression after ICH. CONCLUSIONS AND IMPLICATIONS RO27-3225 suppressed NLRP1-dependent neuronal pyroptosis and improved neurological function, possibly mediated by activation of MC4 receptor and inhibition of ASK1/JNK/p38 MAPK signalling pathways, after experimental ICH in mice. The MC4 receptor may be a promising therapeutic target for the management of ICH.
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Affiliation(s)
- Shengpan Chen
- Department of Neurosurgery, Affiliated Haikou Hospital, Xiangya School of Medicine, Central South University, Haikou, China.,Department of Physiology, School of Medicine, Loma Linda University, Loma Linda, CA, USA
| | - Yuchun Zuo
- Department of Physiology, School of Medicine, Loma Linda University, Loma Linda, CA, USA.,Department of Neurosurgery, The Third Xiangya Hospital, Central South University, Changsha, China
| | - Lei Huang
- Department of Physiology, School of Medicine, Loma Linda University, Loma Linda, CA, USA.,Department of Anesthesiology, Loma Linda University Medical Center, Loma Linda, CA, USA
| | - Prativa Sherchan
- Department of Physiology, School of Medicine, Loma Linda University, Loma Linda, CA, USA
| | - Jian Zhang
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China
| | - Zhengtao Yu
- Department of Neurosurgery, Affiliated Haikou Hospital, Xiangya School of Medicine, Central South University, Haikou, China
| | - Jianhua Peng
- Department of Physiology, School of Medicine, Loma Linda University, Loma Linda, CA, USA.,Department of Neurosurgery, The Affiliated Hospital of Southwest Medical University, Luzhou, China
| | - Junyi Zhang
- Department of Physiology, School of Medicine, Loma Linda University, Loma Linda, CA, USA
| | - Lianhua Zhao
- Department of Physiology, School of Medicine, Loma Linda University, Loma Linda, CA, USA
| | - Desislava Doycheva
- Department of Physiology, School of Medicine, Loma Linda University, Loma Linda, CA, USA
| | - Fei Liu
- Department of Neurosurgery, The Third Xiangya Hospital, Central South University, Changsha, China
| | - John H Zhang
- Department of Physiology, School of Medicine, Loma Linda University, Loma Linda, CA, USA.,Department of Anesthesiology, Loma Linda University Medical Center, Loma Linda, CA, USA
| | - Ying Xia
- Department of Neurosurgery, Affiliated Haikou Hospital, Xiangya School of Medicine, Central South University, Haikou, China
| | - Jiping Tang
- Department of Physiology, School of Medicine, Loma Linda University, Loma Linda, CA, USA
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Wang A, Zhang X, Li S, Zhao X, Liu L, Johnston SC, Meng X, Lin J, Zuo Y, Li H, Wang Y, Wang Y. Oxidative lipoprotein markers predict poor functional outcome in patients with minor stroke or transient ischaemic attack. Eur J Neurol 2019; 26:1082-1090. [PMID: 30793440 DOI: 10.1111/ene.13943] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [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: 10/08/2018] [Accepted: 02/19/2019] [Indexed: 01/08/2023]
Abstract
BACKGROUND AND PURPOSE Oxidative stress plays an important role in acute ischaemic stroke. However, the association of oxidative lipoprotein markers, including oxidized low-density lipoprotein (oxLDL), oxLDL:high-density lipoprotein (HDL) and oxLDL:low-density lipoprotein (LDL), with functional outcome of minor stroke or transient ischaemic attack (TIA) remains unclear. We aimed to investigate the association between oxidative lipoprotein markers and poor functional outcome in patients with minor stroke or TIA. METHODS All patients with minor stroke or TIA were recruited from the Clopidogrel in High-Risk Patients With Acute Non-Disabling Cerebrovascular Events (CHANCE) trial. The poor functional outcome included modified Rankin Scale (mRS) score 2-6 and 3-6 at 90-day and 12-month follow-up. Multivariate logistic regression was used to investigate the associations of oxLDL, oxLDL:HDL and oxLDL:LDL with poor functional outcome. RESULTS Among 3019 patients included in this study, the median (interquartile range) oxLDL, oxLDL:HDL and oxLDL:LDL were 13.96 (6.65-28.81), 4.52 (2.08-9.32) and 11.73 (5.27-24.85) μg/dL, respectively. After adjusted for confounding factors, patients in the highest oxLDL quartile had a higher proportion of mRS score 2-6 at 90 days [hazard ratio (HR), 1.78; 95% confidence interval (CI), 1.26-2.52] and 12 months (HR, 1.42; 95% CI, 1.01-1.99), and mRS score 3-6 at 90 days (HR, 1.98; 95% CI, 1.29-3.04) and 12 months (HR, 1.77; 95% CI, 1.09-2.89) when compared with the lowest oxLDL quartile (P < 0.05). Similar results were found for oxLDL:HDL and oxLDL:LDL. CONCLUSIONS Higher levels of oxidative lipoprotein markers are independent predictors of poor functional outcome in patients with minor stroke or TIA at 90 days and 12 months.
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Affiliation(s)
- A Wang
- Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China.,China National Clinical Research Center for Neurological Diseases, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - X Zhang
- Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China.,China National Clinical Research Center for Neurological Diseases, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - S Li
- Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China.,China National Clinical Research Center for Neurological Diseases, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - X Zhao
- Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China.,China National Clinical Research Center for Neurological Diseases, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - L Liu
- Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China.,China National Clinical Research Center for Neurological Diseases, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - S C Johnston
- Dell Medical School, University of Texas, Austin, TX, USA
| | - X Meng
- Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China.,China National Clinical Research Center for Neurological Diseases, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - J Lin
- Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China.,China National Clinical Research Center for Neurological Diseases, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Y Zuo
- Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China.,China National Clinical Research Center for Neurological Diseases, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - H Li
- Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China.,China National Clinical Research Center for Neurological Diseases, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Y Wang
- Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China.,China National Clinical Research Center for Neurological Diseases, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Y Wang
- Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China.,China National Clinical Research Center for Neurological Diseases, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
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30
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Zuo Y, Huang L, Enkhjargal B, Xu W, Umut O, Travis ZD, Zhang G, Tang J, Liu F, Zhang JH. Activation of retinoid X receptor by bexarotene attenuates neuroinflammation via PPARγ/SIRT6/FoxO3a pathway after subarachnoid hemorrhage in rats. J Neuroinflammation 2019; 16:47. [PMID: 30791908 PMCID: PMC6385420 DOI: 10.1186/s12974-019-1432-5] [Citation(s) in RCA: 55] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2018] [Accepted: 02/04/2019] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND Subarachnoid hemorrhage (SAH) is a life-threatening subtype of stroke with high mortality and disabilities. Retinoid X receptor (RXR) has been shown to be neuroprotective against ischemia/reperfusion injury. This study aimed to investigate the effects of the selective RXR agonist bexarotene on neuroinflammation in a rat model of SAH. METHODS Two hundred male Sprague-Dawley rats were used. The endovascular perforation induced SAH. Bexarotene was administered intraperitoneally at 1 h after SAH induction. To investigate the underlying mechanism, the selective RXR antagonist UVI3003 and RXR siRNA or SIRT6 inhibitor OSS128167 was administered via intracerebroventricular 1 h before SAH induction. Post-SAH assessments including SAH grade, neurological score, brain water content, Western blot, and immunofluorescence were performed. RESULTS The endogenous RXR and sirtuin 6 (SIRT6) protein levels were increased after SAH. Bexarotene treatment significantly reduced brain edema and improved the short-/long-term neurological deficit after SAH. Mechanistically, bexarotene increased the levels of PPARγ and SIRT6; decreased the expression of phosphorylated FoxO3a (p-FoxO3a), IL-6, IL-1β, and TNF-a; and inhibited the microglia activation and neutrophils infiltration at 24 h after SAH. Either UVI3003, OSS128167, or RXR siRNA abolished the neuroprotective effects of bexarotene and its regulation on protein levels of PPARγ/SIRT6/p-FoxO3a after SAH. CONCLUSIONS The activation of RXR by bexarotene attenuated neuroinflammation and improved neurological deficits after SAH. The anti-neuroinflammatory effect was at least partially through regulating PPARγ/SIRT6/FoxO3a pathway. Bexarotene may be a promising therapeutic strategy in the management of SAH patients.
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Affiliation(s)
- Yuchun Zuo
- Department of Neurosurgery, Third XiangYa Hospital, Central South University, No.138 Tongzipo Road, Changsha, 410013, China.,Department of Physiology and Pharmacology, Loma Linda University, 11041 Campus St. Risley Hall, Loma Linda, CA, 92354, USA
| | - Lei Huang
- Department of Physiology and Pharmacology, Loma Linda University, 11041 Campus St. Risley Hall, Loma Linda, CA, 92354, USA.,Department of Neurosurgery, School of Medicine, Loma Linda University, Loma Linda, CA, 92354, USA
| | - Budbazar Enkhjargal
- Department of Physiology and Pharmacology, Loma Linda University, 11041 Campus St. Risley Hall, Loma Linda, CA, 92354, USA
| | - Weilin Xu
- Department of Physiology and Pharmacology, Loma Linda University, 11041 Campus St. Risley Hall, Loma Linda, CA, 92354, USA
| | - Ocak Umut
- Department of Physiology and Pharmacology, Loma Linda University, 11041 Campus St. Risley Hall, Loma Linda, CA, 92354, USA
| | - Zachary D Travis
- Department of Earth and Biological Sciences, School of Medicine, Loma Linda University, Loma Linda, CA, 92354, USA
| | - Guangyu Zhang
- Mass Spectrometry Core Facility, Loma Linda University, Loma Linda, CA, 92354, USA
| | - Jiping Tang
- Department of Physiology and Pharmacology, Loma Linda University, 11041 Campus St. Risley Hall, Loma Linda, CA, 92354, USA
| | - Fei Liu
- Department of Neurosurgery, Third XiangYa Hospital, Central South University, No.138 Tongzipo Road, Changsha, 410013, China.
| | - John H Zhang
- Department of Physiology and Pharmacology, Loma Linda University, 11041 Campus St. Risley Hall, Loma Linda, CA, 92354, USA. .,Department of Neurosurgery, School of Medicine, Loma Linda University, Loma Linda, CA, 92354, USA. .,Department of Anesthesiology, School of Medicine, Loma Linda University, Loma Linda, CA, 92354, USA.
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Peng J, Pang J, Huang L, Enkhjargal B, Zhang T, Mo J, Wu P, Xu W, Zuo Y, Peng J, Zuo G, Chen L, Tang J, Zhang JH, Jiang Y. LRP1 activation attenuates white matter injury by modulating microglial polarization through Shc1/PI3K/Akt pathway after subarachnoid hemorrhage in rats. Redox Biol 2019; 21:101121. [PMID: 30703614 PMCID: PMC6351270 DOI: 10.1016/j.redox.2019.101121] [Citation(s) in RCA: 81] [Impact Index Per Article: 16.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2018] [Revised: 01/18/2019] [Accepted: 01/22/2019] [Indexed: 12/21/2022] Open
Abstract
White matter injury (WMI) is associated with motor deficits and cognitive dysfunctions in subarachnoid hemorrhage (SAH) patients. Therapeutic strategy targeting WMI would likely improve the neurological outcomes after SAH. Low-density lipoprotein receptor-related protein-1 (LRP1), a scavenger receptor of apolipoprotein E (apoE), is able to modulate microglia polarization towards anti-inflammatory M2 phenotypes during inflammatory and oxidative insult. In the present study, we investigated the effects of LRP1 activation on WMI and underlying mechanisms of M2 microglial polarization in a rat model of SAH. Two hundred and seventeen male Sprague Dawley rats (weight 280-330 g) were used. SAH was induced by endovascular perforation. LPR1 ligand, apoE-mimic peptide COG1410 was administered intraperitoneally. Microglial depletion kit liposomal clodronate (CLP), LPR1 siRNA or PI3K inhibitor were administered intracerebroventricularly. Post-SAH assessments included neurobehavioral tests, brain water content, immunohistochemistry, Golgi staining, western blot and co-immunoprecipitation. SAH induced WMI shown as the accumulation of amyloid precursor protein and neurofilament heavy polypeptide as well as myelin loss. Microglial depletion by CLP significantly suppressed WMI after SAH. COG1410 reduced brain water content, increased the anti-inflammatory M2 microglial phenotypes, attenuated WMI and improved neurological function after SAH. LRP1 was bound with endogenous apoE and intracellular adaptor protein Shc1. The benefits of COG1410 were reversed by LPR1 siRNA or PI3K inhibitor. LRP1 activation attenuated WMI and improved neurological function by modulating M2 microglial polarization at least in part through Shc1/PI3K/Akt signaling in a rat model of SAH. The apoE-mimic peptide COG1410 may serve as a promising treatment in the management of SAH patients.
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Affiliation(s)
- Jianhua Peng
- Department of Neurosurgery, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan 646000, China; Department of Physiology and Pharmacology, Loma Linda University, Loma Linda, CA 92350, USA
| | - Jinwei Pang
- Department of Neurosurgery, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan 646000, China; Department of Physiology and Pharmacology, Loma Linda University, Loma Linda, CA 92350, USA
| | - Lei Huang
- Department of Physiology and Pharmacology, Loma Linda University, Loma Linda, CA 92350, USA
| | - Budbazar Enkhjargal
- Department of Physiology and Pharmacology, Loma Linda University, Loma Linda, CA 92350, USA
| | - Tongyu Zhang
- Department of Physiology and Pharmacology, Loma Linda University, Loma Linda, CA 92350, USA
| | - Jun Mo
- Department of Physiology and Pharmacology, Loma Linda University, Loma Linda, CA 92350, USA
| | - Pei Wu
- Department of Physiology and Pharmacology, Loma Linda University, Loma Linda, CA 92350, USA
| | - Weilin Xu
- Department of Physiology and Pharmacology, Loma Linda University, Loma Linda, CA 92350, USA
| | - Yuchun Zuo
- Department of Physiology and Pharmacology, Loma Linda University, Loma Linda, CA 92350, USA
| | - Jun Peng
- Department of Physiology and Pharmacology, Loma Linda University, Loma Linda, CA 92350, USA
| | - Gang Zuo
- Department of Physiology and Pharmacology, Loma Linda University, Loma Linda, CA 92350, USA
| | - Ligang Chen
- Department of Neurosurgery, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan 646000, China
| | - Jiping Tang
- Department of Physiology and Pharmacology, Loma Linda University, Loma Linda, CA 92350, USA
| | - John H Zhang
- Department of Physiology and Pharmacology, Loma Linda University, Loma Linda, CA 92350, USA; Department of Anesthesiology, Loma Linda University, Loma Linda, CA 92350, USA; Department of Neurosurgery, Loma Linda University, Loma Linda, CA 92350, USA.
| | - Yong Jiang
- Department of Neurosurgery, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan 646000, China; Neurosurgery Clinical Medical Research Center of Sichuan Province, Luzhou, Sichuan 646000, China; Nuclear Medicine and Molecular Imaging Key Laboratory of Sichuan Province, Luzhou, Sichuan 646000, China.
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Zuo Y, Wang J, Liao F, Yan X, Li J, Huang L, Liu F. Inhibition of Heat Shock Protein 90 by 17-AAG Reduces Inflammation via P2X7 Receptor/NLRP3 Inflammasome Pathway and Increases Neurogenesis After Subarachnoid Hemorrhage in Mice. Front Mol Neurosci 2018; 11:401. [PMID: 30459553 PMCID: PMC6232389 DOI: 10.3389/fnmol.2018.00401] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2018] [Accepted: 10/12/2018] [Indexed: 12/23/2022] Open
Abstract
Subarachnoid hemorrhage (SAH) is a life-threatening cerebrovascular disease that usually has a poor prognosis. Heat shock proteins (HSPs) have been implicated in the mechanisms of SAH-associated damage, including increased inflammation and reduced neurogenesis. The aim of this study was to investigate the effects of HSP90 inhibition on inflammation and neurogenesis in a mouse model of experimental SAH induced by endovascular surgery. Western blotting showed HSP90 levels to be decreased, while neurogenesis, evaluated by 5-bromo-2'-deoxyuridine (BrdU) immunohistochemistry, was decreased in the hippocampuses of SAH mice. SAH also induced pro-inflammatory factors such as interleukin-1β (IL-1β), capase-1 and the NLRP3 inflammasome. However, intraperitoneal administration of the specific HSP90 inhibitor 17-allylamino-17-demethoxygeldanamycin (17-AAG) reduced the levels of HSP90, NLRP3, ASC, caspase-1 and IL-1β, while increasing the levels of brain-derived neurotrophic factor and doublecortin (DCX), as well as the number of BrdU-positive cells in SAH mice. In addition, 17-AGG improved short- and long-term neurobehavioral outcomes. The neuroprotective and anti-inflammatory effects of 17-AGG were reversed by recombinant HSP90 (rHSP90); this detrimental effect of HSP90 was inhibited by the specific P2X7 receptor (P2X7R) inhibitor A438079, indicating that SAH-induced inflammation and inhibition of neurogenesis were likely mediated by HSP90 and the P2X7R/NLRP3 inflammasome pathway. HSP90 inhibition by 17-AAG may be a promising therapeutic strategy for the treatment of SAH.
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Affiliation(s)
- Yuchun Zuo
- Department of Neurosurgery, Third XiangYa Hospital, Central South University, Changsha, China
| | - Jikai Wang
- Department of Neurosurgery, Third XiangYa Hospital, Central South University, Changsha, China
| | - Fan Liao
- Department of Neurosurgery, Third XiangYa Hospital, Central South University, Changsha, China
| | - Xiaoxin Yan
- Department of Anatomy, XiangYa Medical School, Central South University, Changsha, China
| | - Jianming Li
- Neuroscience Research Center, Changsha Medical University, Changsha, China
| | - Lei Huang
- Department of Physiology and Pharmacology, School of Medicine, Loma Linda University, Loma Linda, CA, United States.,Department of Neurosurgery, School of Medicine, Loma Linda University, Loma Linda, CA, United States
| | - Fei Liu
- Department of Neurosurgery, Third XiangYa Hospital, Central South University, Changsha, China
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Zuo Y, Wang J, Enkhjargal B, Doycheva D, Yan X, Zhang JH, Liu F. Neurogenesis changes and the fate of progenitor cells after subarachnoid hemorrhage in rats. Exp Neurol 2018; 311:274-284. [PMID: 30359565 DOI: 10.1016/j.expneurol.2018.10.011] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [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: 06/16/2018] [Revised: 10/16/2018] [Accepted: 10/20/2018] [Indexed: 11/27/2022]
Abstract
BACKGROUND Subarachnoid hemorrhage (SAH) is a devastating cerebrovascular disease that leads to poor outcomes. Neurogenesis, an essential recovery mechanism after brain injury, has not been fully elucidated after SAH. METHODS A total of 122 SD rats were used in this study. For experiment one, the rats were randomly divided into six groups: sham and SAH with different time points (1,3,5,7,14 days) (n = 12/group). An endovascular perforation method was conducted for SAH model. Rats were injected with 5-Bromo-2'-deoxyuridine (BrdU, 50 mg/kg) 24 h before euthanasia at different time points after SAH. The BrdU labeled cells were detected by immunohistochemistry; Doublecortin (DCX) and glial fibrillary acidic protein (GFAP) were measured by western blot and immunohistochemistry. For experiment two, rats were randomly divided into five groups: sham and SAH with different time points (1, 2, 4, 8 weeks) (n = 6/group). Rats received BrdU (50 mg/kg) once daily for 7 days after the induction of SAH. Double immunofluorescence staining was used to verify proliferation, differentiation and migration of progenitor cells. Rotarod test and water maze used to test the neurobehavioral recovery. RESULTS Our results showed that BrdU positive cells in hippocampus changed overtime after SAH. BrdU positive cells decreased as early as 1 day reaching lowest levels at 3 days after SAH, after which it gradually recovered. Similar change patterns were observed with DCX, which was reversed with GFAP. In addition, BrdU did not co-localize with cleaved caspase-3. The BrdU positive cells mainly differentiated into immature neurons for short-term fate, whereas they differentiated into mature neurons for long-term fate but not astrocytes, which facilitated neurobehavioral recovery after SAH. CONCLUSION Neurogenesis in the hippocampus changes overtime after SAH. The neuronal progenitor cells may play an essential role in the neurobehavioral recovery after brain injury induced by SAH, since short-term progenitors helped with the recovery of immature neurons in the hippocampus, whereas long-term progenitors differentiated into mature neurons.
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Affiliation(s)
- Yuchun Zuo
- Department of Neurosurgery, The third XiangYa Hospital, Central South University, Changsha 410013, China
| | - Jikai Wang
- Department of Neurosurgery, The third XiangYa Hospital, Central South University, Changsha 410013, China
| | - Budbazar Enkhjargal
- Department of Physiology and Pharmacology, Loma Linda University, CA 92354, USA
| | - Desislava Doycheva
- Department of Physiology and Pharmacology, Loma Linda University, CA 92354, USA
| | - Xiaoxin Yan
- Department of Anatomy, XiangYa Medical School, Central South University, Changsha 410013, China
| | - John H Zhang
- Department of Physiology and Pharmacology, Loma Linda University, CA 92354, USA.
| | - Fei Liu
- Department of Neurosurgery, The third XiangYa Hospital, Central South University, Changsha 410013, China.
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Zuo Y, Udupa A, Fan J, Makris UE, Karp DR, Shen YM. The role of cardiovascular disease risk assessed by ASCVD score in primary thrombosis prophylaxis strategy among antiphospholipid antibody carriers. Lupus 2018; 27:2177-2178. [PMID: 30170513 DOI: 10.1177/0961203318796289] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Affiliation(s)
- Y Zuo
- 1 University of Texas Southwestern Medical Center, Dallas, USA
| | - A Udupa
- 1 University of Texas Southwestern Medical Center, Dallas, USA
| | - J Fan
- 1 University of Texas Southwestern Medical Center, Dallas, USA
| | - U E Makris
- 1 University of Texas Southwestern Medical Center, Dallas, USA.,2 VA North Texas Health Care System, Dallas, USA
| | - D R Karp
- 1 University of Texas Southwestern Medical Center, Dallas, USA
| | - Y-M Shen
- 1 University of Texas Southwestern Medical Center, Dallas, USA
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He T, Zuo Y, Ai-Zakwani K, Luo J, Zhu H, Yan XX, Liu F. Subarachnoid hemorrhage enhances the expression of TDP-43 in the brain of experimental rats and human subjects. Exp Ther Med 2018; 16:3363-3368. [PMID: 30233682 PMCID: PMC6143865 DOI: 10.3892/etm.2018.6636] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2018] [Accepted: 07/13/2018] [Indexed: 12/12/2022] Open
Abstract
The transactive response DNA-binding protein of 43 (TDP-43) may be involved in neurodegenerative disease and in the response to brain injury; however, alterations in the expression of TDP-43 following subarachnoid hemorrhage (SAH) require further investigation. The present study reported a notable elevation in the expression of TDP-43 within the cerebrospinal fluid (CSF) of patients with aneurysmal SAH and increased brain expression of TDP-43 in a rat model of SAH. The TDP-43 protein and a derivative migrated at 43 and 24 kDa, respectively, as observed via the immunoblotting of concentrated CSF samples obtained from patients with SAH; no signal was detected in the CSF from healthy controls. SAH in rats was induced by intravascular suture puncture. The expression levels of TDP-43 in rat cortical lysates following SAH were increased at 0.5 h, peaked at 48 h and remained significantly elevated at 72 h post-injury, compared with sham controls. TDP-43 immunolabeling indication localization within neurons, astrocytes and microglia in the experimental rats. Collectively, the findings of the present study indicated the early involvement of TDP-43 in the brain in response to SAH, and that expression levels of TDP-43 in the CSF may serve as a prognostic biomarker among patients with this condition.
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Affiliation(s)
- Tibiao He
- Department of Neurosurgery, The Third Xiangya Hospital, Central South University, Changsha, Hunan 410013, P.R. China
| | - Yuchun Zuo
- Department of Neurosurgery, The Third Xiangya Hospital, Central South University, Changsha, Hunan 410013, P.R. China
| | - Kauthar Ai-Zakwani
- Department of Neurosurgery, The Third Xiangya Hospital, Central South University, Changsha, Hunan 410013, P.R. China
| | - Jing Luo
- Department of Neurology, The Third Xiangya Hospital, Central South University, Changsha, Hunan 410013, P.R. China
| | - Haixia Zhu
- Department of Neurology, The Third Xiangya Hospital, Central South University, Changsha, Hunan 410013, P.R. China
| | - Xiao-Xin Yan
- Department of Anatomy and Neurobiology, School of Basic Medical Science, Central South University, Changsha, Hunan 410013, P.R. China
| | - Fei Liu
- Department of Neurosurgery, The Third Xiangya Hospital, Central South University, Changsha, Hunan 410013, P.R. China
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Wu H, He M, Yang R, Zuo Y, Bian Z. Astrocyte elevated gene-1 participates in the production of pro-inflammatory cytokines in dental pulp cells via NF-κB signalling pathway. Int Endod J 2018; 51:1130-1138. [DOI: 10.1111/iej.12921] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2017] [Accepted: 02/27/2018] [Indexed: 12/23/2022]
Affiliation(s)
- H. Wu
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education; School & Hospital of Stomatology; Wuhan University; Wuhan China
| | - M. He
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education; School & Hospital of Stomatology; Wuhan University; Wuhan China
| | - R. Yang
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education; School & Hospital of Stomatology; Wuhan University; Wuhan China
| | - Y. Zuo
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education; School & Hospital of Stomatology; Wuhan University; Wuhan China
| | - Z. Bian
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education; School & Hospital of Stomatology; Wuhan University; Wuhan China
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Xiao Y, Li G, Chen Y, Zuo Y, Rashid K, He T, Feng H, Zhang JH, Liu F. Milk Fat Globule-Epidermal Growth Factor-8 Pretreatment Attenuates Apoptosis and Inflammation via the Integrin-β3 Pathway after Surgical Brain Injury in Rats. Front Neurol 2018. [PMID: 29535679 PMCID: PMC5834760 DOI: 10.3389/fneur.2018.00096] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Iatrogenic brain injury inevitably occurs in neurosurgical operations, leading to brain edema, ischemia, intracranial hematoma, and other postoperative complications, eventually worsening neurological outcomes of patients. If apoptotic cells are not rapidly eliminated by phagocytic engulfment, they may communicate with surrounding cells to undergo secondary necrosis and releasing toxic signals. Recent studies have shown that milk fat globule-epidermal growth factor-8 (MFGE8), which promotes phagocytosis and inhibits inflammation, is an endogenous protective factor in response to brain infarction, Alzheimer’s disease, subarachnoid hemorrhage, and prion disease. In the present study, we sought to investigate the different effects of both pretreated and posttreated recombinant milk fat globule-epidermal growth factor-8 (rhMFGE8) for the surgical brain injury (SBI) rat model and potential involvement of its receptor integrin β3 for apoptosis and neuroinflammation after SBI. One hundred and sixty-seven male rats were employed in the preset study. Experiment 1 was performed to evaluate neurological scores and MFGE8, cleaved caspase-3 (CC3), and interleukine-1 beta (IL-1β) levels at 3, 24, and 120 h after SBI. Experiment 2 was performed to evaluate the effects of rhMFGE8 pretreatment (10 min before SBI) and rhMFGE8 posttreatment (6 h after SBI) on brain edema at 24 and 72 h after SBI. Experiment 3 was performed to evaluate the potential anti-apoptotic and anti-inflammatory effects of rhMFGE8 pretreatment and posttreatment. Experiment 4 sought to investigate the involvement of the integrin-β3 signal in the effects of MFGE8 pretreatment. Our data showed rhMFGE8 pretreatment alleviated neurological deficits and decreased brain water content and apoptotic cells in the SBI model, which exhibited neurological dysfunction, apoptosis, and inflammation. Meanwhile, MFGE8 siRNA, which inhibited endogenous MFGE8 expression, significantly increased IL-1β, TUNEL positive cells, and CC3. Furthermore, knockdown of its receptor integrin β3 by siRNA abolished the effects of rhMFGE8 in the SBI model. In conclusion, we found that rhMFGE8 pretreatment effectively alleviated neurological deficits and decreased brain water content and apoptotic cells in the SBI model through the MFGE8/integrin-β3 pathway, and treatment time was an important factor in achieving curative effects. Therefore, MFGE8 pretreatment may serve as a promising therapeutic strategy for SBI patients.
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Affiliation(s)
- Yicai Xiao
- Department of Neurosurgery, The Third Xiangya Hospital, Central South University, Hunan, Changsha, China
| | - Gaofeng Li
- Departments of Oncology, Zhuzhou Central Hospital, Hunan, Zhuzhou, China
| | - Yujie Chen
- Department of Neurosurgery, Southwest Hospital, Third Military Medical University, Chongqing, China
| | - Yuchun Zuo
- Department of Neurosurgery, The Third Xiangya Hospital, Central South University, Hunan, Changsha, China
| | - Kauthar Rashid
- Department of Neurosurgery, The Third Xiangya Hospital, Central South University, Hunan, Changsha, China
| | - Tibiao He
- Department of Neurosurgery, The Third Xiangya Hospital, Central South University, Hunan, Changsha, China
| | - Hua Feng
- Department of Neurosurgery, Southwest Hospital, Third Military Medical University, Chongqing, China
| | - John H Zhang
- Neuroscience Research Center, Loma Linda University, Loma Linda, CA, United States
| | - Fei Liu
- Department of Neurosurgery, The Third Xiangya Hospital, Central South University, Hunan, Changsha, China
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Felip E, Wakelee H, Vallieres E, Zhou C, Zuo Y, Xia F, Sandler A, Altorki N. P2.04-004 IMpower010: A Phase III Study of Atezolizumab vs Best Supportive Care Following Adjuvant Chemotherapy in Completely Resected NSCLC. J Thorac Oncol 2017. [DOI: 10.1016/j.jtho.2017.11.017] [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]
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Li YY, Lu J, Wang XZ, Yang YY, Fei J, Zhang LP, Li Z, Li CS, Zuo Y. [Genotype distribution of human enteroviruses isolated from swage in Shanghai during year 2013-2014]. Zhonghua Yu Fang Yi Xue Za Zhi 2017; 51:154-159. [PMID: 28219155 DOI: 10.3760/cma.j.issn.0253-9624.2017.02.011] [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 explore the time and genotype distribution of human enterovirus (HEV) isolated from sewage in Shanghai in 2013-2014. Methods: One sewage sample each was collected from two local sewage plants located in Minhang District and Jiading District on the same day at the day 24-28 of every month from 2013 to 2014. Each sample weighed 1 L. The specimens were concentrated by anionic membrane absorption, eluted with beef extract solution, and then used to inoculate RD, HEp-2, and L20B cell lines. A total of 249 enterovirus strains were isolated from sewage samples during the study period, including 185 non-polio enterovirus (NPEV) and 64 poliovirus (PV) strains, which were identified as vaccine strains. RT-PCR and Sanger sequencing were performed to identify HEV genotypes. Homologous analysis of VP1 sequences was conducted using BioEdit (version 7.0.0). Phylogenetic analysis was performed using the neighbor-joining method based on the alignment of VP1 gene sequences using MEGA (version 4.0.2). Results: Among 185 NPEV strains, 178 strains were successfully sequenced and classified into 15 genotypes, including coxsackievirus group B (CVB) 2, 3, and 5; enteric cytopathic human orphan (ECHO) virus 1, 3, 6, 7, 11, 13, 19, 20, 24, 25, and 30; and coxsackievirus group A 4. CVB5 and ECHO6 genotypes accounted for 33.5% (56 strains) and 24.9% (43 strains) of NPEV isolates, respectively. During the study period, HEV isolates were mainly isolated in summer and autumn in Minhang District. ECHO6 strains were frequently isolated from June 2013 to July 2014. Thereafter, the number of ECHO6 strains gradually reduced in the second half of 2014. CVB5 strains demonstrated scattered distribution from 2013 to the first half of 2014 and gradually increased in the second half of 2014. The distribution of ECHO6 and CVB5 strains in Jiading District was similar to that in Minhang District. In 2013-2014, CVB5 strains comprised C6 and C8 subgenotypes, which belong to two transmission chains and show large differences compared with foreign strains isolated during the same period. ECHO6 strains comprised C6, C8, and D9 subgenotypes, which belong to three transmission chains. Moreover, ECHO6 subgenotype D9 was a dominant subgenotype in Shanghai, with broad geographical distribution both at home and abroad. Conclusion: Poliovirus was identified as a vaccine strain in environmental surveillance from June 2013 to April 2014 in Shanghai. Several transmission strains of ECHO6 and CVB5 were identified, which were the dominant serotypes.
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Affiliation(s)
- Y Y Li
- Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
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40
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Zhou C, Altorki N, Valliéres E, Felip E, Zuo Y, Howland M, Xia F, Hoang T, Sandler A, Wakelee H. 429TiP IMpower010: A Phase III trial investigating atezolizumab (atezo) vs best supportive care (BSC) after adjuvant chemotherapy (chemo) in patients (pts) with completely resected NSCLC. Ann Oncol 2016. [DOI: 10.1093/annonc/mdw592.004] [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: 11/13/2022] Open
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41
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Zuo Y, Willis R, Papalardo E, Petri M, Harris EN, Schleh A, DeCeulaer K, Smikle M, Vilá LM, Reveille JD, Alarcón GS, Gonzalez EB. A unique antiphospholipid assay recognizing phospholipid mixture compared with criteria antiphospholipid immunoassays in lupus patients. Lupus 2016; 26:606-615. [PMID: 27753626 DOI: 10.1177/0961203316671812] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Background While essential for the classification of antiphospholipid syndrome (APS), anticardiolipin (aCL) assays lack specificity and anti-β2glycoproteinI (anti-β2GPI) assays lack sensitivity in this regard. Our aim was to perform a comparative analysis of the APhL ELISA assay (IgG/IgM) and criteria antiphospholipid (aPL) immunoassays in identifying APS-related clinical manifestations in a large group of patients with systemic lupus erythematosus (SLE). Methods Serum samples from 1178 patients from the Hopkins ( n = 543), LUMINA ( n = 588) and Jamaican SLE cohorts ( n = 47) were examined for IgG/IgM positivity in aCL (in-house), anti-β2GPI (two commercial kits) and APhL (Louisville APL) ELISA assays. Correlation of assay positivity with clinical manifestations and sensitivity, specificity, positive and negative predictive values and likelihood ratios were evaluated. A case series analysis was also performed in patients for whom there was isolated positivity in the specific aPL assays. Results The prevalence of aCL positivity was 34.9%, anti-β2GPI kit A was 22.6%, APhL was 11.5% and anti-β2GPI kit B was 7.6% in the study population. Anti-β2GPI kit B, aCL and APhL assays were correlated with venous thrombosis, while only APhL was significantly correlated with arterial thrombosis and consistently correlated with pregnancy-related morbidity. No significant correlations were noted for anti-β2GPI kit A. Sensitivity was greatest for aCL assays followed by anti-β2GPI kit A, APhL and anti-β2GPI kit B, while specificity was greatest and equal for anti-β2GPI kit B and APhL assays. Conclusions Overall, APhL antibodies, especially IgG, represent a promising biomarker for the classification of APS patients in the context of autoimmunity and in risk assessment with regards to pregnancy morbidity and thrombotic manifestations.
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Affiliation(s)
- Y Zuo
- 1 University of Texas Southwestern Medical Center, Texas, USA
| | - R Willis
- 2 University of Texas Medical Branch, Galveston, Texas, USA
| | - E Papalardo
- 2 University of Texas Medical Branch, Galveston, Texas, USA
| | - M Petri
- 3 John Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - E N Harris
- 4 University of the West Indies, Mona Campus, Kingston, Jamaica
| | - A Schleh
- 2 University of Texas Medical Branch, Galveston, Texas, USA
| | - K DeCeulaer
- 4 University of the West Indies, Mona Campus, Kingston, Jamaica
| | - M Smikle
- 4 University of the West Indies, Mona Campus, Kingston, Jamaica
| | - L M Vilá
- 5 Division of Rheumatology, University of Puerto Rico Medical Sciences Campus, San Juan, Puerto Rico
| | - J D Reveille
- 6 University of Texas School of Medicine at Houston, Texas, USA
| | - G S Alarcón
- 7 University of Alabama at Birmingham, Alabama, USA
| | - E B Gonzalez
- 2 University of Texas Medical Branch, Galveston, Texas, USA
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Liao F, Li G, Yuan W, Chen Y, Zuo Y, Rashid K, Zhang JH, Feng H, Liu F. LSKL peptide alleviates subarachnoid fibrosis and hydrocephalus by inhibiting TSP1-mediated TGF-β1 signaling activity following subarachnoid hemorrhage in rats. Exp Ther Med 2016; 12:2537-2543. [PMID: 27698755 PMCID: PMC5038515 DOI: 10.3892/etm.2016.3640] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2015] [Accepted: 02/24/2016] [Indexed: 12/19/2022] Open
Abstract
Hydrocephalus has been demonstrated to be an independent risk factor for poor outcomes in patients with subarachnoid hemorrhage (SAH). Blockage of cerebrospinal fluid (CSF) flow and drainage is widely considered to play a vital role in communicating hydrocephalus, possibly due to subarachnoid fibrosis. A previous study indicated that transforming growth factor-β1 (TGF-β1), a key fibrogenic factor, is significantly increased in the CSF following SAH, implying a pivotal role in the development of chronic hydrocephalus. To investigate whether LSKL peptide, a small molecular peptide and competitive antagonist for TGF-β1, protects against subarachnoid fibrosis and hydrocephalus after SAH, a two-hemorrhage injection model of SAH was created in Sprague-Dawley rats. LSKL (1 mg/kg) was administered intraperitoneally immediately following the first intravenous injection of blood in the SAH model, with repeated injections of LSKL every 12 h until sacrifice. Thrombospondin-1 (TSP1), TGF-β1, p-Smad2/3, collagen I and pro-collagen I c-terminal propeptide levels were assessed via western blotting and ELISA. Lateral ventricular index, Masson staining and Morris water maze tests were employed to evaluate subarachnoid fibrosis, hydrocephalus and long-term neurological function following SAH. It was found that the LKSL peptide readily crossed the blood brain barrier, was protective against subarachnoid fibrosis, attenuated ventriculomegaly and effectively suppressed hydrocephalus. In addition, the results indicated that the protective effects of the LSKL peptide were achieved via the inhibition of TGF-β1 activity and subsequent Smad2/3 signaling. Importantly, the LSKL peptide may improve long-term neurocognitive deficits after SAH. In conclusion, the LSKL peptide suppresses subarachnoid fibrosis via inhibition of TSP1-mediated TGF-β1 activity, prevents the development of chronic hydrocephalus and improves long-term neurocognitive defects following SAH.
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Affiliation(s)
- Fan Liao
- Department of Neurosurgery, The Third Xiangya Hospital, Central South University, Changsha, Hunan 410013, P.R. China
| | - Gaofeng Li
- Department of Oncology, Zhuzhou Central Hospital, Zhuzhou, Hunan 412007, P.R. China
| | - Wen Yuan
- Department of Neurosurgery, Zhuzhou Central Hospital, Zhuzhou, Hunan 412007, P.R. China
| | - Yujie Chen
- Department of Neurosurgery, Southwest Hospital, Third Military Medical University, Chongqing 400038, P.R. China
| | - Yuchun Zuo
- Department of Neurosurgery, The Third Xiangya Hospital, Central South University, Changsha, Hunan 410013, P.R. China
| | - Kauthar Rashid
- Department of Neurosurgery, The Third Xiangya Hospital, Central South University, Changsha, Hunan 410013, P.R. China
| | - John H Zhang
- Department of Physiology and Pharmacology, Loma Linda University, Loma Linda, CA 92354, USA
| | - Hua Feng
- Department of Neurosurgery, Southwest Hospital, Third Military Medical University, Chongqing 400038, P.R. China
| | - Fei Liu
- Department of Neurosurgery, The Third Xiangya Hospital, Central South University, Changsha, Hunan 410013, P.R. China
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Zuo Y, An Y, Li C, Guo Z, Li Z. SAT0252 Long-Term Survival Analysis and Prognostic Outcome Factors in Idiopathic Inflammatory Myopathy. Ann Rheum Dis 2016. [DOI: 10.1136/annrheumdis-2016-eular.5592] [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: 11/04/2022]
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44
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Lu A, Fang Y, Du X, Li Y, Cai Z, Yu K, Zhao L, Wang B, Wu J, Cheng Y, Zuo Y, Jia Y, Tan F, Ding L, Lu J, Zhang L, Huang X. Efficacy, safety and pharmacokinetics of clofarabine in Chinese pediatric patients with refractory or relapsed acute lymphoblastic leukemia: a phase II, multi-center study. Blood Cancer J 2016; 6:e400. [PMID: 26918364 PMCID: PMC4771971 DOI: 10.1038/bcj.2016.8] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2022] Open
Affiliation(s)
- A Lu
- Department of Pediatrics, Peking University People's Hospital, Beijing, China
| | - Y Fang
- Department of Phase 1 Clinical Trial, Peking University People's Hospital, Beijing, China
| | - X Du
- Guangdong General Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Y Li
- The First Hospital of China Medical University, Shenyang, China
| | - Z Cai
- The First Affiliated Hospital, Zhejiang University, Hangzhou, China
| | - K Yu
- The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - L Zhao
- Department of Phase 1 Clinical Trial, Peking University People's Hospital, Beijing, China
| | - B Wang
- Department of Pediatrics, Peking University People's Hospital, Beijing, China
| | - J Wu
- Department of Pediatrics, Peking University People's Hospital, Beijing, China
| | - Y Cheng
- Department of Pediatrics, Peking University People's Hospital, Beijing, China
| | - Y Zuo
- Department of Pediatrics, Peking University People's Hospital, Beijing, China
| | - Y Jia
- Department of Pediatrics, Peking University People's Hospital, Beijing, China
| | - F Tan
- Betta Pharmaceuticals Co., Ltd, Hangzhou, China
| | - L Ding
- Betta Pharmaceuticals Co., Ltd, Hangzhou, China
| | - J Lu
- Institute of Hematology, Peking University People's Hospital, Beijing, China
| | - L Zhang
- Department of Pediatrics, Peking University People's Hospital, Beijing, China
| | - X Huang
- Institute of Hematology, Peking University People's Hospital, Beijing, China
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Cai J, Zuo Y, Wang T, Cao Y, Cai R, Chen FL, Cheng J, Mu J. A crucial role of SUMOylation in modulating Sirt6 deacetylation of H3 at lysine 56 and its tumor suppressive activity. Oncogene 2016; 35:4949-56. [PMID: 26898756 DOI: 10.1038/onc.2016.24] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2015] [Revised: 10/18/2015] [Accepted: 11/06/2015] [Indexed: 02/07/2023]
Abstract
Sirt6 is a histone deacetylase with NAD(+)-dependent activity. Sirt6 has been shown as a tumor suppressor partially via inhibiting the expression of c-Myc target genes and ribosome biogenesis. However, how to regulate Sirt6 activity is largely unknown. In this study, we identify that Sirt6 can be modified by small ubiquitin-like modifier. Sirt6 SUMOylation deficiency specifically decreases its deacetylation of H3K56 but not H3K9 in vivo. Mechanistically, we find that SUMOylation deficiency decreases Sirt6 binding with c-Myc, decreasing Sirt6 occupancy on the locus of c-Myc target genes. Therefore, Sirt6 SUMOylation deficiency reduces its deacetylation of H3k56 and its repression of c-Myc target genes. Moreover, Sirt6 SUMOylation deficiency reduces its suppression of cell proliferation and tumorigenesis. Thus, these results reveal that SUMOylation has an important role in regulation of Sirt6 deacetylation on H3K56, as well as its tumor suppressive activity.
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Affiliation(s)
- J Cai
- Department of Biochemistry and Molecular Cell Biology, Shanghai Key Laboratory of Tumor Microenvironment and Inflammation, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Y Zuo
- Department of Biochemistry and Molecular Cell Biology, Shanghai Key Laboratory of Tumor Microenvironment and Inflammation, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - T Wang
- Department of Biochemistry and Molecular Cell Biology, Shanghai Key Laboratory of Tumor Microenvironment and Inflammation, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Y Cao
- Department of Biochemistry and Molecular Cell Biology, Shanghai Key Laboratory of Tumor Microenvironment and Inflammation, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - R Cai
- Department of Biochemistry and Molecular Cell Biology, Shanghai Key Laboratory of Tumor Microenvironment and Inflammation, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - F-L Chen
- Shanghai Third People's Hospital Affiliated Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - J Cheng
- Department of Biochemistry and Molecular Cell Biology, Shanghai Key Laboratory of Tumor Microenvironment and Inflammation, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - J Mu
- Department of Thoracic Surgery, Cancer Hospital, Chinese Academy of Medical Science & Peking Union Medical College, Beijing, China
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Zhao Y, Zuo Y, Wang XL, Huo HJ, Jiang JM, Yan HB, Xiao YL. Effect of neural stem cell transplantation combined with erythropoietin injection on axon regeneration in adult rats with transected spinal cord injury. Genet Mol Res 2015; 14:17799-808. [PMID: 26782425 DOI: 10.4238/2015.december.22.4] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
We investigated the effect of neural stem cells (NSC) and erythropoietin (EPO) on axon regeneration in adult rats with transected spinal cord injury, and provided an experimental basis for clinical treatment. Forty Wistar rats with T10-transected spinal cord injury were randomly divided into four groups of ten rats: a control group (group A), an NSC-transplant group (group B), an NSC-transplant and EPO group (group C), and an EPO group (group D). Biotinylated dextran amines (BDA) anterograde corticospinal cord neuronal tracing and Fluoro-Gold (FG) retrograde tracing were carried out at the 8th week after operation to observe the regeneration of nerve fibers. The Basso, Beattie, and Bresnahan (BBB) locomotor score was used to evaluate restoration. 1) BDA and FG immunofluorescence staining: in group C, a large number of regenerated axons were observed and some penetrated the injured area. In group B, only a small number of regenerated axons were observed and none penetrated the injured area. In group D, only sporadic regenerated nerve fibers were observed occasionally, while in group A, no axonal regeneration was observed. In group C, a small number of cones and axons emitted yellow fluorescence, and no FG-labeled cells were observed in the other groups. 2) The BBB scores for group C were higher than those for the other groups, and the differences were statistically significance (P < 0.05). NSC transplantation combined with EPO intraperitoneal injection may benefit axon regeneration in rats with transected spinal cord injury, and accelerate the functional recovery of the hindlimb locomotor.
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Affiliation(s)
- Y Zhao
- Department of Spinal Surgery, The Second Affiliated Hospital, Inner Mongolia Medical University, Hohhot, China
| | - Y Zuo
- Department of Clinical Laboratory, The Second Affiliated Hospital, Inner Mongolia Medical University, Hohhot, China
| | - X L Wang
- Department of Spinal Surgery, The Second Affiliated Hospital, Inner Mongolia Medical University, Hohhot, China
| | - H J Huo
- Department of Spinal Surgery, The Second Affiliated Hospital, Inner Mongolia Medical University, Hohhot, China
| | - J M Jiang
- Department of Orthopedic and Spinal Surgery, Nan-Fang Hospital, Southern Medical University, Guangzhou, China
| | - H B Yan
- Department of Spinal Surgery, No. 3 Affiliated Hospital, Southern Medical University, Guangzhou, China
| | - Y L Xiao
- Department of Spinal Surgery, The Second Affiliated Hospital, Inner Mongolia Medical University, Hohhot, China
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He H, Yang Q, Zuo Y, Peng Y, Zhong H, Qian C, Guan C, Xu Z. 491P MicroRNA-494-3p promotes cell growth, migration and invasion of nasopharyngeal carcinoma by targeting SOX7. Ann Oncol 2015. [DOI: 10.1093/annonc/mdv533.10] [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: 11/13/2022] Open
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48
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Yan H, Chen Y, Li L, Jiang J, Wu G, Zuo Y, Zhang JH, Feng H, Yan X, Liu F. Decorin alleviated chronic hydrocephalus via inhibiting TGF-β1/Smad/CTGF pathway after subarachnoid hemorrhage in rats. Brain Res 2015; 1630:241-53. [PMID: 26556770 DOI: 10.1016/j.brainres.2015.11.004] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [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: 05/20/2015] [Revised: 10/08/2015] [Accepted: 11/02/2015] [Indexed: 01/01/2023]
Abstract
Chronic hydrocephalus is one of the severe complications after subarachnoid hemorrhage (SAH). However, there is no efficient treatment for the prevention of chronic hydrocephalus, partially due to poor understanding of underlying pathogenesis, subarachnoid fibrosis. Transforming growth factor-β1(TGF-β1) is a potent fibrogenic factor implicated in wide range of fibrotic diseases. To investigate whether decorin, a natural antagonist for TGF-β1, protects against subarachnoid fibrosis and chronic hydrocephalus after SAH, two-hemorrhage-injection SAH model was conducted in 6-week-old rats. Recombinant human decorin(rhDecorin) (30ug/2ul) was administered before blood injection and on the 10th day after SAH. TGF-β1, p-Smad2/3, connective tissue growth factor (CTGF), collagen I and pro-collagen I c-terminal propeptide were assessed via western blotting, enzyme-linked immunosorbent assay, radioimmunoassay and immunofluorescence. And neurobehavioral tests and Morris water maze were employed to evaluate long-term neurological functions after SAH. We found that SAH induced heightened activation of TGF-β1/Smad/CTGF axis, presenting as a two peak response of TGF-β1 in cerebrospinal fluid, elevation of TGF-β1, p-Smad2/3, CTGF, collagen I in brain parenchyma and pro-collagen I c-terminal propeptide in cerebrospinal fluid, and increased lateral ventricle index. rhDecorin treatment effectively inhibited up-regulation of TGF-β1, p-Smad2/3, CTGF, collagen I and pro-collagen I c-terminal propeptide after SAH. Moreover, rhDecorin treatment significantly reduced lateral ventricular index and incidence of chronic hydrocephalus after SAH. Importantly, rhDecorin improved neurocognitive deficits after SAH. In conclusion, rhDecorin suppresses extracellular matrix accumulation and following subarachnoid fibrosis via inhibiting TGF-β1/Smad/CTGF pathway, preventing development of hydrocephalus and attenuating long-term neurocognitive defects after SAH.
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Affiliation(s)
- Hui Yan
- Department of Neurosurgery, The Third Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Yujie Chen
- Department of Neurosurgery, Southwest Hospital, Third Military Medical University, Chongqing, China
| | - Lingyong Li
- Department of Neurosurgery, The Third Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Jiaode Jiang
- Department of Neurosurgery, The Third Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Guangyong Wu
- Department of Neurosurgery, The Third Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Yuchun Zuo
- Department of Neurosurgery, The Third Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - John H Zhang
- Department of Physiology and Pharmacology, Loma Linda University, Loma Linda, CA, USA
| | - Hua Feng
- Department of Neurosurgery, Southwest Hospital, Third Military Medical University, Chongqing, China
| | - Xiaoxin Yan
- Department of Anatomy and Neurobiology, Central South University Xiangya School of Medicine, Changsha, Hunan, China
| | - Fei Liu
- Department of Neurosurgery, The Third Xiangya Hospital, Central South University, Changsha, Hunan, China.
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Li Y, Wang P, Wei J, Fan R, Zuo Y, Shi M, Wu H, Zhou M, Lin J, Wu M, Fang X, Huang Z. Inhibition of Drp1 by Mdivi-1 attenuates cerebral ischemic injury via inhibition of the mitochondria-dependent apoptotic pathway after cardiac arrest. Neuroscience 2015; 311:67-74. [PMID: 26477985 DOI: 10.1016/j.neuroscience.2015.10.020] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [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: 07/23/2015] [Revised: 09/22/2015] [Accepted: 10/11/2015] [Indexed: 01/09/2023]
Abstract
Mitochondrial fission is predominantly controlled by the activity of dynamin-related protein1 (Drp1), which has been reported to be involved in mitochondria apoptosis pathways. However, the role of Drp1 in a rat model of cardiac arrest remains unknown. In this study, we found that activation of Drp1 in the mitochondria was increased after cardiac arrest and inhibition of Drp1 by 1.2 mg/kg of mitochondrial division inhibitor-1 (Mdivi-1) administration after the restoration of spontaneous circulation (ROSC) significantly protected against cerebral ischemic injury, shown by the increased 72-h survival rate and improved neurological function. Moreover, the increase of the vital neuron and the reduction of cytochrome c (CytC) release, apoptosis-inducing factor (AIF) translocation and caspase-3 activation in the brain indicate that this protection might result from the suppression of neuron apoptosis. Altogether, these results indicated that Drp1 is activated after cardiac arrest and the inhibition of Drp1 is protective against cerebral ischemic injury in a rat of cardiac arrest model via inhibition of the mitochondrial apoptosis pathway.
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Affiliation(s)
- Y Li
- Department of Emergency Medicine, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China; Institute of Cardiopulmonary Cerebral Resuscitation, Sun Yat-sen University, Guangzhou, China
| | - P Wang
- Department of Emergency Medicine, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China; Institute of Cardiopulmonary Cerebral Resuscitation, Sun Yat-sen University, Guangzhou, China
| | - J Wei
- Department of Emergency Medicine, People's Hospital of Baoan District, Shenzhen, China
| | - R Fan
- Department of Emergency Medicine, Zhongshan People's Hospital, Zhongshan, China
| | - Y Zuo
- Department of Cardiovascular Medicine, The First Affiliated Hospital, Guangxi Medical University, Nanning, China
| | - M Shi
- Department of Emergency Medicine, People's Hospital of Baoan District, Shenzhen, China
| | - H Wu
- Department of Emergency Medicine, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China; Institute of Cardiopulmonary Cerebral Resuscitation, Sun Yat-sen University, Guangzhou, China
| | - M Zhou
- Department of Emergency Medicine, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China; Institute of Cardiopulmonary Cerebral Resuscitation, Sun Yat-sen University, Guangzhou, China
| | - J Lin
- Department of Emergency Medicine, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China; Institute of Cardiopulmonary Cerebral Resuscitation, Sun Yat-sen University, Guangzhou, China
| | - M Wu
- Department of Emergency Medicine, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China; Institute of Cardiopulmonary Cerebral Resuscitation, Sun Yat-sen University, Guangzhou, China
| | - X Fang
- Department of Emergency Medicine, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China; Institute of Cardiopulmonary Cerebral Resuscitation, Sun Yat-sen University, Guangzhou, China
| | - Z Huang
- Department of Emergency Medicine, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China; Institute of Cardiopulmonary Cerebral Resuscitation, Sun Yat-sen University, Guangzhou, China.
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50
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Wu YL, Zhou C, Liam CK, Wu G, Liu X, Zhong Z, Lu S, Cheng Y, Han B, Chen L, Huang C, Qin S, Zhu Y, Pan H, Liang H, Li E, Jiang G, How SH, Fernando MCL, Zhang Y, Xia F, Zuo Y. First-line erlotinib versus gemcitabine/cisplatin in patients with advanced EGFR mutation-positive non-small-cell lung cancer: analyses from the phase III, randomized, open-label, ENSURE study. Ann Oncol 2015; 26:1883-1889. [PMID: 26105600 DOI: 10.1093/annonc/mdv270] [Citation(s) in RCA: 538] [Impact Index Per Article: 59.8] [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: 02/20/2015] [Accepted: 06/04/2015] [Indexed: 02/05/2023] Open
Abstract
BACKGROUND The phase III, randomized, open-label ENSURE study (NCT01342965) evaluated first-line erlotinib versus gemcitabine/cisplatin (GP) in patients from China, Malaysia and the Philippines with epidermal growth factor receptor (EGFR) mutation-positive non-small-cell lung cancer (NSCLC). PATIENTS AND METHODS Patients ≥18 years old with histologically/cytologically confirmed stage IIIB/IV EGFR mutation-positive NSCLC and Eastern Cooperative Oncology Group performance status 0-2 were randomized 1:1 to receive erlotinib (oral; 150 mg once daily until progression/unacceptable toxicity) or GP [G 1250 mg/m(2) i.v. days 1 and 8 (3-weekly cycle); P 75 mg/m(2) i.v. day 1, (3-weekly cycle) for up to four cycles]. Primary end point: investigator-assessed progression-free survival (PFS). Other end points include objective response rate (ORR), overall survival (OS), and safety. RESULTS A total of 217 patients were randomized: 110 to erlotinib and 107 to GP. Investigator-assessed median PFS was 11.0 months versus 5.5 months, erlotinib versus GP, respectively [hazard ratio (HR), 0.34, 95% confidence interval (CI) 0.22-0.51; log-rank P < 0.0001]. Independent Review Committee-assessed median PFS was consistent (HR, 0.42). Median OS was 26.3 versus 25.5 months, erlotinib versus GP, respectively (HR, 0.91, 95% CI 0.63-1.31; log-rank P = .607). ORR was 62.7% for erlotinib and 33.6% for GP. Treatment-related serious adverse events (AEs) occurred in 2.7% versus 10.6% of erlotinib and GP patients, respectively. The most common grade ≥3 AEs were rash (6.4%) with erlotinib, and neutropenia (25.0%), leukopenia (14.4%), and anemia (12.5%) with GP. CONCLUSION These analyses demonstrate that first-line erlotinib provides a statistically significant improvement in PFS versus GP in Asian patients with EGFR mutation-positive NSCLC (NCT01342965).
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Affiliation(s)
- Y-L Wu
- Guangdong Lung Cancer Institute, Guangdong General Hospital and Guangdong Academy of Medical Sciences, Guangzhou.
| | - C Zhou
- Department of Oncology, Shanghai Pulmonary Hospital, Tongji University School of Medicine, Shanghai, China
| | - C-K Liam
- Department of Medicine, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | - G Wu
- Cancer Center of Union Hospital, Tongji Medical College, Huzhong University of Science and Technology, Wuhan
| | - X Liu
- Department of Internal Medicine Tumor, Academy of Military Medical Sciences Affiliated Hospital (307 Hospital of PLA), Beijing
| | - Z Zhong
- Cancer Centre, Research Institute of Surgery, Daping Hospital, Third Military Medical University, Chongqing
| | - S Lu
- Department of Lung Cancer, Shanghai Chest Hospital, Shanghai
| | - Y Cheng
- Jilin Cancer Hospital, Changchun
| | - B Han
- Department of Lung Cancer, Shanghai Chest Hospital, Shanghai
| | - L Chen
- Department of Medical Oncology, Cancer Hospital of Shantou University Medical College, Shantou
| | - C Huang
- Fujian Provincial Tumor Hospital, Fujian
| | - S Qin
- Nanjing Bayi Hospital, Nanjing
| | - Y Zhu
- Department of Lung Cancer, Beijing Tuberculosis and Thoracic Tumor Research Institute, Beijing
| | - H Pan
- Department of Oncology, Sir Run Run Shaw Hospital Affiliated to Zhejiang University School of Medicine, Hangzhou
| | - H Liang
- Affiliated Xinan Hospital of Third Military Medical University, Chongqing
| | - E Li
- First Affiliated Hospital, Medical School Xi'an Jiaotong University, Xi'an
| | - G Jiang
- Cancer Hospital, Fudan University, Shanghai, China
| | - S H How
- Department of Medicine, International Islamic University Malaysia, Kuala Lumpur, Malaysia
| | | | - Y Zhang
- Roche (China) Holding Ltd, Shanghai, China
| | - F Xia
- Roche (China) Holding Ltd, Shanghai, China
| | - Y Zuo
- Roche (China) Holding Ltd, Shanghai, China
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