1
|
Guo F, Lin SD, Du Y, Hu TT, Wang Y, Chen Z, Zhang SH. Secondary somatosensory cortex glutamatergic innervation of the thalamus facilitates pain. Pain 2024; 165:1142-1153. [PMID: 38112733 DOI: 10.1097/j.pain.0000000000003117] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Accepted: 09/27/2023] [Indexed: 12/21/2023]
Abstract
ABSTRACT Although the secondary somatosensory cortex (SII) is known to be involved in pain perception, its role in pain modulation and neuropathic pain is yet unknown. In this study, we found that glutamatergic neurons in deep layers of the SII (SII Glu ) responded to bilateral sensory inputs by changing their firing with most being inhibited by contralateral noxious stimulation. Optical inhibition and activation of unilateral SII Glu reduced and enhanced bilateral nociceptive sensitivity, respectively, without affecting mood status. Tracing experiments revealed that SII Glu sent dense monosynaptic projections to the posterolateral nucleus (VPL) and the posterior nucleus (Po) of the thalamus. Optical inhibition and activation of projection terminals of SII Glu in the unilateral VPL and Po inhibited and facilitated pain on the contralateral side, respectively. After partial sciatic nerve ligation, SII Glu became hyperactive as evidenced by higher frequency of spontaneous firing, but the response patterns to peripheral stimulation remained. Optical inhibition of SII Glu alleviated not only bilateral mechanical allodynia and thermal hyperalgesia but also the negative affect associated with spontaneous pain. Inhibition of SII Glu terminals in the VPL and Po also relieved neuropathic pain. This study revealed that SII Glu and the circuits to the VPL and Po constitute a part of the endogenous pain modulatory network. These corticothalamic circuits became hyperactive after peripheral nerve injury, hence contributes to neuropathic pain. These results justify proper inhibition of SII Glu and associated neural circuits as a potential clinical strategy for neuropathic pain treatment.
Collapse
Affiliation(s)
- Fang Guo
- Department of Pharmacology and Department of Anesthesiology of the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Shi-Da Lin
- Department of Pharmacology and Department of Anesthesiology of the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Yu Du
- Department of Pharmacology and Department of Anesthesiology of the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
- Key Laboratory of Neuropharmacology and Translational Medicine of Zhejiang Province, College of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou, China
| | - Ting-Ting Hu
- Department of Pharmacology and Department of Anesthesiology of the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Yi Wang
- Key Laboratory of Neuropharmacology and Translational Medicine of Zhejiang Province, College of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou, China
| | - Zhong Chen
- Key Laboratory of Neuropharmacology and Translational Medicine of Zhejiang Province, College of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou, China
| | - Shi-Hong Zhang
- Department of Pharmacology and Department of Anesthesiology of the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| |
Collapse
|
2
|
Abd El-Aty A, Xu Y, Hou Y, Zhang SH, Ha S, Xia L, Alzahrani B, Ali A, Ahmed MMZ, Shokry A. Modelling the Flow Behaviour of Al Alloy Sheets at Elevated Temperatures Using a Modified Zerilli-Armstrong Model and Phenomenological-Based Constitutive Models. Materials (Basel) 2024; 17:1584. [PMID: 38612098 PMCID: PMC11012879 DOI: 10.3390/ma17071584] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Revised: 03/17/2024] [Accepted: 03/26/2024] [Indexed: 04/14/2024]
Abstract
The flow behaviour of AA2060 Al alloy under warm/hot deformation conditions is complicated because of its dependency on strain rates (ε˙), strain (ε), and deformation modes. Thus, it is crucial to reveal and predict the flow behaviours of this alloy at a wide range of temperatures (T) and ε˙ using different constitutive models. Firstly, the isothermal tensile tests were carried out via a Gleeble-3800 thermomechanical simulator at a T range of 100, 200, 300, 400, and 500 °C and ε˙ range of 0.01, 0.1, 1, and 10 s-1 to reveal the warm/hot flow behaviours of AA2060 alloy sheet. Consequently, three phenomenological-based constitutive models (L-MJC, S1-MJC, S2-MJC) and a modified Zerilli-Armstrong (MZA) model representing physically based constitutive models were developed to precisely predict the flow behaviour of AA2060 alloy sheet under a wide range of T and ε˙. The predictability of the developed constitutive models was assessed and compared using various statistical parameters, including the correlation coefficient (R), average absolute relative error (AARE), and root mean square error (RMSE). By comparing the results determined from these models and those obtained from experimentations, and confirmed by R, AARE, and RMSE values, it is concluded that the predicted stresses determined from the S2-MJC model align closely with the experimental stresses, demonstrating a remarkable fit compared to the S1-MJC, L-MJC, and MZA models. This is because of the linking impact between softening, the strain rate, and strain hardening in the S2-MJC model. It is widely known that the dislocation process is affected by softening and strain rates. This is attributed to the interactions that occurred between ε and ε˙ from one side and between ε, ε˙, and T from the other side using an extensive set of constants correlating the constitutive components of dynamic recovery and softening mechanisms.
Collapse
Affiliation(s)
- Ali Abd El-Aty
- Department of Mechanical Engineering, College of Engineering at Al Kharj, Prince Sattam Bin Abdulaziz University, Al-Kharj 11942, Saudi Arabia (M.M.Z.A.)
- Mechanical Engineering Department, Faculty of Engineering, Helwan University, Cairo 11795, Egypt
| | - Yong Xu
- Shi-Changxu Innovation Center for Advanced Materials, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China
| | - Yong Hou
- Department of Materials Science and Engineering & RIAM, Seoul National University, Seoul 08826, Republic of Korea
| | - Shi-Hong Zhang
- Shi-Changxu Innovation Center for Advanced Materials, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China
| | - Sangyul Ha
- Department of Semiconductor Engineering, Myongji University, Yongin 17058, Republic of Korea;
| | - Liangliang Xia
- School of Transportation, Ludong University, Yantai 264025, China
| | - Bandar Alzahrani
- Department of Mechanical Engineering, College of Engineering at Al Kharj, Prince Sattam Bin Abdulaziz University, Al-Kharj 11942, Saudi Arabia (M.M.Z.A.)
| | - Alamry Ali
- Department of Mechanical Engineering, College of Engineering at Al Kharj, Prince Sattam Bin Abdulaziz University, Al-Kharj 11942, Saudi Arabia (M.M.Z.A.)
| | - Mohamed M. Z. Ahmed
- Department of Mechanical Engineering, College of Engineering at Al Kharj, Prince Sattam Bin Abdulaziz University, Al-Kharj 11942, Saudi Arabia (M.M.Z.A.)
| | - Abdallah Shokry
- Department of Mechanical Engineering, Faculty of Engineering, Fayoum University, Fayoum 63514, Egypt
| |
Collapse
|
3
|
Yu BY, Hu XM, Matala R, Mo YH, Liu JL, Jin JG, Zhang SH, Ou YQ, Yang Y, Dong HJ. Association between trajectories of systolic blood pressure and frailty outcome in middle-aged and older adults. J Nutr Health Aging 2024; 28:100202. [PMID: 38460319 DOI: 10.1016/j.jnha.2024.100202] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2023] [Revised: 02/06/2024] [Accepted: 02/11/2024] [Indexed: 03/11/2024]
Abstract
OBJECTIVES The association between blood pressure and frailty outcome in the middle-aged and older population remains controversial. This study aimed to examine the relationship between trajectories of systolic blood pressure (SBP) and new-onset frailty. DESIGN Cohort study with a 7-year follow-up. SETTING AND PARTICIPANTS Data were derived from 4 waves (2011, 2013, 2015 and 2018) of the China Health and Retirement Longitudinal Study and 6168 participants aged ≥45 years were included in the study. METHODS The frailty index (FI) was constructed based on 40 scored items, with FI ≥ 0.25 defined as frailty. We identified the 5-year trajectory of SBP by latent class trajectory modeling. The association between SBP trajectories and frailty was explored based on hazard ratios (HR) by four Cox proportional hazards models. Furthermore, we also investigated the relationship between mean SBP and systolic blood pressure variability (SBPV) and frailty. RESULTS 6168 participants were included in this study with a mean age of 59 years. We identified five trajectories based on SBP, which are maintained low-stable SBP (T0), moderate-stable SBP (T1), remitting then increasing SBP (T2), increasing then remitting SBP (T3), and remaining stable at high SBP levels (T4). During the 7-year follow-up period, frailty outcome occurred in 1415 participants. After adjusting for other confounders, the two trajectories labeled "T2" and "T4" were associated with a higher risk of frailty compared with T0. In addition, elevated SBP and increased SBPV were associated with risk of frailty. CONCLUSIONS Higher risk of frailty occurred in two trajectories, remitting then increasing and remaining stable at high SBP levels, were associated with a relatively higher risk of frailty.
Collapse
Affiliation(s)
- B Y Yu
- Department of Cardiology, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, 510080, China
| | - X M Hu
- Department of Cardiology, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, 510080, China
| | - R Matala
- Department of Environmental Health Sciences and Epidemiology and Biostatistics, University at Albany, One University Place, Rensselaer, NY, 12144
| | - Y H Mo
- Department of Cardiology, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, 510080, China
| | - J L Liu
- Department of Cardiology, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, 510080, China
| | - J G Jin
- Department of Cardiology, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, 510080, China
| | - S H Zhang
- Department of Cardiology, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, 510080, China
| | - Y Q Ou
- Department of Cardiology, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, 510080, China
| | - Y Yang
- Department of Cardiology, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, 510080, China.
| | - H J Dong
- Department of Cardiology, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, 510080, China; Nyingchi People's Hospital, Nyingchi, 860000, Tibet, China.
| |
Collapse
|
4
|
Zhang SH, Su Y. [Research progresses of INI1-deficient tumors in children]. Zhonghua Er Ke Za Zhi 2024; 62:82-86. [PMID: 38154984 DOI: 10.3760/cma.j.cn112140-20231021-00310] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/30/2023]
Affiliation(s)
- S H Zhang
- Medical Oncology Department, Pediatric Oncology Center, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing Key Laboratory of Pediatric Hematology Oncology, National Key Clinical Discipline of Pediatric Oncology, Key Laboratory of Major Diseases in Children, Ministry of Education, Beijing 100045, China
| | - Y Su
- Medical Oncology Department, Pediatric Oncology Center, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing Key Laboratory of Pediatric Hematology Oncology, National Key Clinical Discipline of Pediatric Oncology, Key Laboratory of Major Diseases in Children, Ministry of Education, Beijing 100045, China
| |
Collapse
|
5
|
Zhang SH, Wang XJ, Jiang ZF. [Expert consensus on endocrine therapy of breast cancer (2023 edition)]. Zhonghua Yi Xue Za Zhi 2023; 103:2993-3001. [PMID: 37813650 DOI: 10.3760/cma.j.cn112137-20230616-01027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 10/11/2023]
Abstract
Endocrine therapy is the primary systemic therapy for hormone receptor-positive breast cancer, which runs through the whole process of treatment for early and metastatic breast cancer. The development of new endocrine agents and targeted drugs such as cyclin-dependent kinases 4/6(CDK4/6)inhibitors has improved outcome of patients with hormone receptor-positive breast cancer and changed the treatment landscape. The update of clinical research data provides more treatment options, calling for treatment optimization. Experts had a deep discussion around the hot topics on endocrine therapy of breast cancer, and formulated the'Expert consensus on endocrine therapy of breast cancer (2023 edition)'.This consensus is based on research data worldwide and clinical practice experience, with the aims of standardizing clinical diagnosis and optimizing treatment in neoadjuvant, adjuvant and metastatic setting of hormone receptor-positive breast cancer.
Collapse
|
6
|
Qing Q, Chen Y, Zheng DK, Sun ML, Xie Y, Zhang SH. Systematic review with meta-analysis: effects of probiotic fungi on irritable bowel syndrome. Benef Microbes 2023; 14:303-315. [PMID: 38661391 DOI: 10.1163/18762891-20220134] [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: 11/25/2022] [Accepted: 03/10/2023] [Indexed: 04/26/2024]
Abstract
Treatment of irritable bowel syndrome (IBS) remains challenging for clinicians. Probiotic fungi may act as candidate options for IBS treatment, but systematic evaluation of their clinical value remains scarce. This study is aimed to assess the efficacy and the safety of probiotic fungi for IBS treatment by means of systematic review and meta-analysis. PubMed, Embase, Web of Science, and the Cochrane Library, were searched up to June 2022. Randomised controlled trials recruited subjects with prescriptions of probiotic fungi were eligible. Efficacy and safety of probiotic fungi were re-evaluated. Continuous data were pooled to obtain standardised difference in means (SMD) with a 95% confidence interval. The search strategy identified 120 articles of which 7 trial assessing 883 subjects were included in the analysis. Systematic data support that Saccharomyces helps to relieve abdominal pain/discomfort (SMD = -0.205, P = 0.005), and presented potential improvements on psychological outcomes, stool form for IBS patients. It is hard to demonstrate favourable effects on other symptoms (including distension, mucus passage, sense of incomplete evacuation, urgency, straining). The incidence of mild complications ranged from 0 to 51.4%, but no serious complications were observed in the included trials. Therefore, the partial response and the relative safe of probiotic fungi for IBS treatment have been demonstrated from the existing trials. However, it is premature to eventually declare the practical effects of probiotic fungi. Conducting more high-quality and large-scale trials and real-world studies, or even developing new fungal strains, is still necessary.
Collapse
Affiliation(s)
- Q Qing
- Department of Gastroenterology, The Third Affiliated Hospital of Guangzhou Medical University, No. 63, Duobao Road, Liwan District, Guangzhou, Guangdong province, 510150, P.R. China
| | - Y Chen
- Department of Gastroenterology, Integrative Clinical Microecology Center, Shenzhen Hospital, Southern Medical University, No. 1333 Xinhu Road, Bao'an district, Shenzhen, Guangdong province, 518101, P.R. China
| | - D K Zheng
- Department of Gastroenterology, Integrative Clinical Microecology Center, Shenzhen Hospital, Southern Medical University, No. 1333 Xinhu Road, Bao'an district, Shenzhen, Guangdong province, 518101, P.R. China
- Department of Infectious Diseases, Nanfang Hospital, Southern Medical University, No. 1838 Guangzhou North Avenue, Baiyun District, Guangzhou, Guangdong province, 510515, P.R. China
| | - M L Sun
- Department of Gastroenterology, Zhujiang Hospital, Southern Medical University, No. 253 Industrial Road, Haizhu District, Guangzhou, Guangdong province, 510282, P.R. China
| | - Y Xie
- Department of Gastroenterology, Zhujiang Hospital, Southern Medical University, No. 253 Industrial Road, Haizhu District, Guangzhou, Guangdong province, 510282, P.R. China
| | - S H Zhang
- Department of Gastroenterology, Zhujiang Hospital, Southern Medical University, No. 253 Industrial Road, Haizhu District, Guangzhou, Guangdong province, 510282, P.R. China
| |
Collapse
|
7
|
Zhang SH, Hu CF, Gao LN, Qiao JF, Li X, Shi SS. [Clinicopathological analysis of nuclear protein in testis midline carcinoma]. Zhonghua Bing Li Xue Za Zhi 2023; 52:808-813. [PMID: 37527985 DOI: 10.3760/cma.j.cn112151-20221118-00975] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Subscribe] [Scholar Register] [Indexed: 08/03/2023]
Abstract
Objective: To investigate the clinicopathological features, immunophenotype and prognosis of nuclear protein in testis (NUT) midline carcinoma. Methods: Twenty-four resection cases of NUT midline carcinoma diagnosed at the Department of Pathology, Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China from January 2018 to September 2022, were collected, and retrospectively analyzed for their clinicopathological characteristics. Relevant literature was reviewed. Results: All 24 cases of NUT midline carcinoma occurred in the chest or head and neck, including 14 men and 10 women, with a median age of 40 years. Histological examination showed that the tumors were poorly differentiated, with solid nested or sheet-like arrangement, small to medium-sized cells, sparse cytoplasm and coarse granular chromatin, including 5 cases with abrupt squamous epithelial differentiation. Immunohistochemistry showed that all 24 cases were positive for NUT protein, while 16 cases were p63 positive, 19 cases were p40 positive, 15 out of 18 cases were CK5/6 positive. Follow-up data were obtained for 21 patients (follow-up time range, 1-21 months), of which 11 survived, 10 died, and 3 were lost to follow-up. Conclusions: NUT midline carcinoma is a rare and highly aggressive malignancy with unique histological, immunophenotypic and molecular features. It has a poor prognosis.
Collapse
Affiliation(s)
- S H Zhang
- Department of Pathology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijinɡ 100021, China
| | - C F Hu
- Department of Pathology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijinɡ 100021, China
| | - L N Gao
- Department of Pathology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijinɡ 100021, China
| | - J F Qiao
- Department of Pathology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijinɡ 100021, China
| | - X Li
- Department of Pathology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijinɡ 100021, China
| | - S S Shi
- Department of Pathology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijinɡ 100021, China
| |
Collapse
|
8
|
Abd El-Aty A, Ha S, Xu Y, Hou Y, Zhang SH, Alzahrani B, Ali A, Ahmed MMZ. Coupling Computational Homogenization with Crystal Plasticity Modelling for Predicting the Warm Deformation Behaviour of AA2060-T8 Al-Li Alloy. Materials (Basel) 2023; 16:ma16114069. [PMID: 37297204 DOI: 10.3390/ma16114069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Revised: 05/16/2023] [Accepted: 05/23/2023] [Indexed: 06/12/2023]
Abstract
This study aimed to propose a new approach for predicting the warm deformation behaviour of AA2060-T8 sheets by coupling computational homogenization (CH) with crystal plasticity (CP) modeling. Firstly, to reveal the warm deformation behaviour of the AA2060-T8 sheet, isothermal warm tensile testing was accomplished using a Gleeble-3800 thermomechanical simulator at the temperatures and strain rates that varied from 373 to 573 K and 0.001 to 0.1 s-1. Then, a novel crystal plasticity model was proposed for describing the grains' behaviour and reflecting the crystals' actual deformation mechanism under warm forming conditions. Afterward, to clarify the in-grain deformation and link the mechanical behaviour of AA2060-T8 with its microstructural state, RVE elements were created to represent the microstructure of AA2060-T8, where several finite elements discretized every grain. A remarkable accordance was observed between the predicted results and their experimental counterparts for all testing conditions. This signifies that coupling CH with CP modelling can successfully determine the warm deformation behaviour of AA2060-T8 (polycrystalline metals) under different working conditions.
Collapse
Affiliation(s)
- Ali Abd El-Aty
- Department of Mechanical Engineering, College of Engineering at Al Kharj, Prince Sattam Bin Abdulaziz University, Al Kharj 11942, Saudi Arabia
- Mechanical Engineering Department, Faculty of Engineering-Helwan, Helwan University, Cairo 11795, Egypt
| | - Sangyul Ha
- PKG Simulation, SK Hynix Inc., Icheon 17336, Gyeonggi, Republic of Korea
| | - Yong Xu
- Shi-Changxu Innovation Center for Advanced Materials, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China
- School of Materials Science and Engineering, University of Science and Technology of China, Shenyang 110016, China
| | - Yong Hou
- Department of Materials Science and Engineering & RIAM, Seoul National University, Seoul 08826, Republic of Korea
| | - Shi-Hong Zhang
- Shi-Changxu Innovation Center for Advanced Materials, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China
- School of Materials Science and Engineering, University of Science and Technology of China, Shenyang 110016, China
| | - Bandar Alzahrani
- Department of Mechanical Engineering, College of Engineering at Al Kharj, Prince Sattam Bin Abdulaziz University, Al Kharj 11942, Saudi Arabia
| | - Alamry Ali
- Department of Mechanical Engineering, College of Engineering at Al Kharj, Prince Sattam Bin Abdulaziz University, Al Kharj 11942, Saudi Arabia
| | - Mohamed M Z Ahmed
- Department of Mechanical Engineering, College of Engineering at Al Kharj, Prince Sattam Bin Abdulaziz University, Al Kharj 11942, Saudi Arabia
| |
Collapse
|
9
|
Li X, Wajjiha B, Zhang P, Dang Y, Prasad R, Wei Y, Zhang SH. Serendipita indica chitinase protects rice from the blast and bakanae diseases. J Basic Microbiol 2023. [PMID: 37032320 DOI: 10.1002/jobm.202200349] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2022] [Revised: 01/15/2023] [Accepted: 02/25/2023] [Indexed: 04/11/2023]
Abstract
Serendipita indica, a multifunctional and useful endophyte fungus, has been intensively investigated in promoting plant growth and resistance towards biotic and abiotic stress. Multiple chitinases from microorganisms or plants have been identified to have a high antifungal activity as a biological control. However, chitinase of S. indica still needs to be characterized. We functionally characterized a chitinase (SiChi) in S. indica. The result showed that the purified SiChi protein confers high chitinase activity; importantly, SiChi inhibits the conidial germination of Magnaporthe oryzae and Fusarium moniliforme. After the successful colonization of rice roots by S. indica, both the rice blast disease and bakanae disease were significantly reduced. Interestingly, the purified SiChi could promptly induce rice disease resistance towards M. oryzae and F. moniliforme pathogens when sprayed on rice leaves. Like S. indica, SiChi could upregulate rice pathogen-resistant proteins and defense enzymes. In conclusion, chitinase of S. indica has direct antifungal activity and indirect induced resistance activity, implying an efficient and economic strategy for rice disease control by applying S. indica and SiChi.
Collapse
Affiliation(s)
- Xinrui Li
- The Key Laboratory for Extreme-Environmental Microbiology, College of Plant Protection, Shenyang Agricultural University, Shenyang, Liaoning, China
- College of Plant Sciences, Jilin University, Changchun, Jilin, China
| | - Batool Wajjiha
- The Key Laboratory for Extreme-Environmental Microbiology, College of Plant Protection, Shenyang Agricultural University, Shenyang, Liaoning, China
| | - Penghui Zhang
- The Key Laboratory for Extreme-Environmental Microbiology, College of Plant Protection, Shenyang Agricultural University, Shenyang, Liaoning, China
- College of Plant Sciences, Jilin University, Changchun, Jilin, China
| | - Yuejia Dang
- The Key Laboratory for Extreme-Environmental Microbiology, College of Plant Protection, Shenyang Agricultural University, Shenyang, Liaoning, China
| | | | - Yi Wei
- The Key Laboratory for Extreme-Environmental Microbiology, College of Plant Protection, Shenyang Agricultural University, Shenyang, Liaoning, China
| | - Shi-Hong Zhang
- The Key Laboratory for Extreme-Environmental Microbiology, College of Plant Protection, Shenyang Agricultural University, Shenyang, Liaoning, China
- College of Plant Sciences, Jilin University, Changchun, Jilin, China
| |
Collapse
|
10
|
Wang SW, Song HW, Zhang SH, Chen SF. Special-Oriented Annealing-Twins-Induced Orange Peel Morphology of Heat Pipe under Bending Deformation. Materials (Basel) 2023; 16:2147. [PMID: 36984027 PMCID: PMC10053590 DOI: 10.3390/ma16062147] [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] [Figures] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Revised: 02/25/2023] [Accepted: 02/27/2023] [Indexed: 06/18/2023]
Abstract
The thin-wall heat pipe is an efficient heat transfer component that has been widely used in the field of heat dissipation of high-power electronic equipment in recent years. In this study, the orange peel morphology defect of thin-wall heat pipes after bending deformation was analyzed both for the macro-3D profile and for the micro-formation mechanism. The morphology and crystal orientations of the grains and annealing twins were carefully characterized utilizing optical metallography and the electron backscatter diffraction technique. The results show that after high-temperature sintering treatment, the matrix grains of the heat pipe are seriously coarsened and form a strong Goss texture, while certain annealing twins with the unique copper orientation are retained. The distribution of the Schmid factor value subjected to the uniaxial stress indicates that inhomogeneity in the intergranular deformation exists among the annealing twins and matrix grains. The annealing twin exhibits a "hard-oriented" component during the deformation; thus, it plays a role as a barrier and hinders the slipping of dislocation. As the strain accumulates, part of the annealing twins may protrude from the surface of the heat pipe, forming a large-scale fluctuation of the surface as the so-called "orange peel" morphology. The 3D profile shows the bulged twins mostly perpendicular to the drawing direction, about 200-300 in width and 10-20 μm in height.
Collapse
|
11
|
Fan X, Zhang P, Batool W, Liu C, Hu Y, Wei Y, He Z, Zhang SH. Contribution of the Tyrosinase (MoTyr) to Melanin Synthesis, Conidiogenesis, Appressorium Development, and Pathogenicity in Magnaporthe oryzae. J Fungi (Basel) 2023; 9:jof9030311. [PMID: 36983479 PMCID: PMC10059870 DOI: 10.3390/jof9030311] [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: 01/31/2023] [Revised: 02/15/2023] [Accepted: 02/20/2023] [Indexed: 03/05/2023] Open
Abstract
Dihydroxynapthalene-(DHN) and L-dihydroxyphenylalanine (L-DOPA) are two types of dominant melanin in fungi. Fungal melanins with versatile functions are frequently associated with pathogenicity and stress tolerance. In rice blast fungus, Magnaporthe oryzae, DHN melanin is essential to maintain the integrity of the infectious structure, appressoria; but the role of the tyrosinase-derived L-DOPA melanin is still unknown. Here, we have genetically and biologically characterized a tyrosinase gene (MoTyr) in M. oryzae. MoTyr encodes a protein of 719 amino acids that contains the typical CuA and CuB domains of tyrosinase. The deletion mutant of MoTyr (ΔMoTyr) was obtained by using a homologous recombination approach. Phenotypic analysis showed that conidiophore stalks and conidia formation was significantly reduced in ΔMoTyr. Under different concentrations of glycerol and PEG, more appressoria collapsed in the mutant strains than in the wild type, suggesting MoTyr is associated with the integrity of the appressorium wall. Melanin measurement confirmed that MoTyr loss resulted in a significant decrease in melanin synthesis. Accordingly, the loss of MoTyr stunted the conidia germination under stress conditions. Importantly, the MoTyr deletion affected both infection and pathogenesis stages. These results suggest that MoTyr, like DHN pigment synthase, plays a key role in conidiophore stalks formation, appressorium integrity, and pathogenesis of M. oryzae, revealing a potential drug target for blast disease control.
Collapse
Affiliation(s)
- Xiaoning Fan
- The Key Laboratory for Extreme-Environmental Microbiology, College of Plant Protection, Shenyang Agricultural University, Shenyang 110866, China
| | - Penghui Zhang
- The Key Laboratory for Extreme-Environmental Microbiology, College of Plant Protection, Shenyang Agricultural University, Shenyang 110866, China
| | - Wajjiha Batool
- The Key Laboratory for Extreme-Environmental Microbiology, College of Plant Protection, Shenyang Agricultural University, Shenyang 110866, China
| | - Chang Liu
- The Key Laboratory for Extreme-Environmental Microbiology, College of Plant Protection, Shenyang Agricultural University, Shenyang 110866, China
| | - Yan Hu
- The Key Laboratory for Extreme-Environmental Microbiology, College of Plant Protection, Shenyang Agricultural University, Shenyang 110866, China
| | - Yi Wei
- The Key Laboratory for Extreme-Environmental Microbiology, College of Plant Protection, Shenyang Agricultural University, Shenyang 110866, China
| | - Zhengquan He
- Key Laboratory of Three Gorges Regional Plant Genetics & Germplasm Enhancement (CTGU), Biotechnology Research Center, China Three Gorges University, Yichang 443000, China
| | - Shi-Hong Zhang
- The Key Laboratory for Extreme-Environmental Microbiology, College of Plant Protection, Shenyang Agricultural University, Shenyang 110866, China
- Correspondence:
| |
Collapse
|
12
|
Xu Y, Lv XW, Wang Y, Zhang SH, Xie WL, Xia LL, Chen SF. Effect of Hot Metal Gas Forming Process on Formability and Microstructure of 6063 Aluminum Alloy Double Wave Tube. Materials (Basel) 2023; 16:1152. [PMID: 36770156 PMCID: PMC9920092 DOI: 10.3390/ma16031152] [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] [Figures] [Subscribe] [Scholar Register] [Received: 12/29/2022] [Revised: 01/19/2023] [Accepted: 01/24/2023] [Indexed: 06/18/2023]
Abstract
The hot metal gas forming process can significantly improve the formability of a tube and is suitable for the manufacturing of parts with complex shapes. In this paper, a double wave tube component is studied. The effects of different temperatures (400 °C, 425 °C, 450 °C and 475 °C) and different pressures (1 MPa, 1.5 MPa, 2 MPa, 2.5 MPa and 3 MPa) on the formability of 6063 aluminum alloy tubes were studied. The influence of hot metal gas forming process parameters on the microstructure was analyzed. The optimal hot metal gas forming process parameters of 6063 aluminum alloy tubes were explored. The results show that the expansion rate increases with the increase in pressure. The pressure affects the deformation of the tube, which in turn has an effect on the dynamic softening of the material. The expansion rate of parts also increases with the increase in forming temperature. The increased deformation temperature is beneficial to the dynamic recrystallization of 6063, resulting in softening of the material and enhanced deformation uniformity between grains, so that the formability of the material is improved. The optimum hot metal gas forming process parameters of 6063 aluminum alloy tubes are the temperature of 475 °C and the pressure of 2.5 MPa; the maximum expansion ratio is 41.6%.
Collapse
Affiliation(s)
- Yong Xu
- Shi-Changxu Innovation Center for Advanced Materials, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China
- School of Materials Science and Engineering, University of Science and Technology of China, Shenyang 110016, China
| | - Xiu-Wen Lv
- Shi-Changxu Innovation Center for Advanced Materials, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China
- School of Materials Science and Engineering, University of Science and Technology of China, Shenyang 110016, China
| | - Yun Wang
- College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
- College of Metallurgy and Energy, North China University of Science and Technology, Tangshan 063210, China
| | - Shi-Hong Zhang
- Shi-Changxu Innovation Center for Advanced Materials, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China
- School of Materials Science and Engineering, University of Science and Technology of China, Shenyang 110016, China
| | - Wen-Long Xie
- Shi-Changxu Innovation Center for Advanced Materials, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China
- School of Materials Science and Engineering, University of Science and Technology of China, Shenyang 110016, China
| | - Liang-Liang Xia
- Shi-Changxu Innovation Center for Advanced Materials, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China
- School of Materials Science and Engineering, University of Science and Technology of China, Shenyang 110016, China
| | - Shuai-Feng Chen
- Shi-Changxu Innovation Center for Advanced Materials, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China
- School of Materials Science and Engineering, University of Science and Technology of China, Shenyang 110016, China
| |
Collapse
|
13
|
Wu YT, Zhang Z, Ji R, Zhang SH, Wang WP, Wu C, Zhang JP, Jiang XP, Zhang H. [Regulatory effects of bio-intensity electric field on microtubule acetylation in human epidermal cell line HaCaT]. Zhonghua Shao Shang Yu Chuang Mian Xiu Fu Za Zhi 2022; 38:1066-1072. [PMID: 36418264 DOI: 10.3760/cma.j.cn501120-20211105-00377] [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] [Grants] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Objective: To investigate the regulatory effects of bio-intensity electric field on directional migration and microtubule acetylation in human epidermal cell line HaCaT, aiming to provide molecular theoretical basis for the clinical treatment of wound repair. Methods: The experimental research methods were used. HaCaT cells were collected and divided into simulated electric field group (n=54) placed in the electric field device without electricity for 3 h and electric field treatment group (n=52) treated with 200 mV/mm electric field for 3 h (the same treatment methods below). The cell movement direction was observed in the living cell workstation and the movement velocity, trajectory velocity, and direction of cosθ of cell movement within 3 h of treatment were calculated. HaCaT cells were divided into simulated electric field group and electric field treatment 1 h group, electric field treatment 2 h group, and electric field treatment 3 h group which were treated with 200 mV/mm electric field for corresponding time. HaCaT cells were divided into simulated electric field group and 100 mV/mm electric field group, 200 mV/mm electric field group, and 300 mV/mm electric field group treated with electric field of corresponding intensities for 3 h. The protein expression of acetylated α-tubulin was detected by Western blotting (n=3). HaCaT cells were divided into simulated electric field group and electric field treatment group, and the protein expression of acetylated α-tubulin was detected and located by immunofluorescence method (n=3). Data were statistically analyzed with Kruskal-Wallis H test,Mann-Whitney U test, Bonferroni correction, one-way analysis of variance, least significant difference test, and independent sample t test. Results: Within 3 h of treatment, compared with that in simulated electric field group, the cells in electric field treatment group had obvious tendency to move directionally, the movement velocity and trajectory velocity were increased significantly (with Z values of -8.53 and -2.05, respectively, P<0.05 or P<0.01), and the directionality was significantly enhanced (Z=-8.65, P<0.01). Compared with (0.80±0.14) in simulated electric field group, the protein expressions of acetylated α-tubulin in electric field treatment 1 h group (1.50±0.08) and electric field treatment 2 h group (1.89±0.06) were not changed obviously (P>0.05), while the protein expression of acetylated α-tubulin of cells in electric field treatment 3 h group (3.37±0.36) was increased significantly (Z=-3.06, P<0.05). After treatment for 3 h, the protein expressions of acetylated α-tubulin of cells in 100 mV/mm electric field group, 200 mV/mm electric field group, and 300 mV/mm electric field group were 1.63±0.05, 2.24±0.08, and 2.00±0.13, respectively, which were significantly more than 0.95±0.27 in simulated electric field group (P<0.01). Compared with that in 100 mV/mm electric field group, the protein expressions of acetylated α-tubulin in 200 mV/mm electric field group and 300 mV/mm electric field group were increased significantly (P<0.01); the protein expression of acetylated α-tubulin of cells in 300 mV/mm electric field group was significantly lower than that in 200 mV/mm electric field group (P<0.05). After treatment for 3 h, compared with that in simulated electric field group, the acetylated α-tubulin of cells had enhanced directional distribution and higher protein expression (t=5.78, P<0.01). Conclusions: Bio-intensity electric field can induce the directional migration of HaCaT cells and obviously up-regulate the level of α-ubulin acetylation after treatment at 200 mV/mm bio-intensity electric field for 3 h.
Collapse
Affiliation(s)
- Y T Wu
- Department of Plastic and Burn Surgery, the First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - Z Zhang
- Department of Plastic Surgery, the First Affiliated Hospital of Army Medical University (the Third Military Medical University), Chongqing 400038, China
| | - R Ji
- Department of Plastic and Burn Surgery, the First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - S H Zhang
- Department of Plastic and Burn Surgery, the First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - W P Wang
- Department of Plastic and Burn Surgery, the First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - C Wu
- Department of Plastic Surgery, the First Affiliated Hospital of Army Medical University (the Third Military Medical University), Chongqing 400038, China
| | - J P Zhang
- Department of Plastic Surgery, the First Affiliated Hospital of Army Medical University (the Third Military Medical University), Chongqing 400038, China
| | - X P Jiang
- Department of Plastic Surgery, the First Affiliated Hospital of Army Medical University (the Third Military Medical University), Chongqing 400038, China
| | - Hengshu Zhang
- Department of Plastic and Burn Surgery, the First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| |
Collapse
|
14
|
Zhang SH, Xia J, Li Y, Wu YJ, Li YZ, Xie F, Chen F. [Primary gastric diffuse large B-cell lymphoma in a child]. Zhonghua Er Ke Za Zhi 2022; 60:1214-1216. [PMID: 36319162 DOI: 10.3760/cma.j.cn112140-20220407-00299] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Affiliation(s)
- S H Zhang
- Department of Gastroenterology, the Affliated Children's Hospital of Nanchang University, Jiangxi Provincial Children's Hospital, Nanchang 330006, China
| | - J Xia
- Department of Gastroenterology, the Affliated Children's Hospital of Nanchang University, Jiangxi Provincial Children's Hospital, Nanchang 330006, China
| | - Y Li
- Department of Gastroenterology, the Affliated Children's Hospital of Nanchang University, Jiangxi Provincial Children's Hospital, Nanchang 330006, China
| | - Y J Wu
- Department of Pathology, the Affliated Children's Hospital of Nanchang University, Jiangxi Provincial Children's Hospital, Nanchang 330006,China
| | - Y Z Li
- Endoscopy Department, the Affliated Children's Hospital of Nanchang University, Jiangxi Provincial Children's Hospital, Nanchang 330006,China
| | - F Xie
- Endoscopy Department, the Affliated Children's Hospital of Nanchang University, Jiangxi Provincial Children's Hospital, Nanchang 330006,China
| | - Feng Chen
- Department of Hematology, the Affliated Children's Hospital of Nanchang University, Jiangxi Provincial Children's Hospital, Nanchang 330006, China
| |
Collapse
|
15
|
Yang HF, He KY, Koo J, Shen SW, Zhang SH, Liu G, Liu YZ, Chen C, Liang AJ, Huang K, Wang MX, Gao JJ, Luo X, Yang LX, Liu JP, Sun YP, Yan SC, Yan BH, Chen YL, Xi X, Liu ZK. Visualization of Chiral Electronic Structure and Anomalous Optical Response in a Material with Chiral Charge Density Waves. Phys Rev Lett 2022; 129:156401. [PMID: 36269973 DOI: 10.1103/physrevlett.129.156401] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/16/2022] [Accepted: 09/07/2022] [Indexed: 05/02/2023]
Abstract
Chiral materials have attracted significant research interests as they exhibit intriguing physical properties, such as chiral optical response, spin-momentum locking, and chiral induced spin selectivity. Recently, layered transition metal dichalcogenide 1T-TaS_{2} has been found to host a chiral charge density wave (CDW) order. Nevertheless, the physical consequences of the chiral order, for example, in electronic structures and the optical properties, are yet to be explored. Here, we report the spectroscopic visualization of an emergent chiral electronic band structure in the CDW phase, characterized by windmill-shaped Fermi surfaces. We uncover a remarkable chirality-dependent circularly polarized Raman response due to the salient in-plane chiral symmetry of CDW, although the ordinary circular dichroism vanishes. Chiral Fermi surfaces and anomalous Raman responses coincide with the CDW transition, proving their lattice origin. Our Letter paves a path to manipulate the chiral electronic and optical properties in two-dimensional materials and explore applications in polarization optics and spintronics.
Collapse
Affiliation(s)
- H F Yang
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, People's Republic of China
| | - K Y He
- National Laboratory of Solid State Microstructures and Department of Physics, Nanjing University, Nanjing 210093, People's Republic of China
| | - J Koo
- Department of Condensed Matter Physics, Weizmann Institute of Science, Rehovot 76100, Israel
| | - S W Shen
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, People's Republic of China
| | - S H Zhang
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, People's Republic of China
| | - G Liu
- National Laboratory of Solid State Microstructures and Department of Physics, Nanjing University, Nanjing 210093, People's Republic of China
| | - Y Z Liu
- Department of Condensed Matter Physics, Weizmann Institute of Science, Rehovot 76100, Israel
| | - C Chen
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, People's Republic of China
- Department of Physics, University of Oxford, Oxford, OX1 3PU, United Kingdom
| | - A J Liang
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, People's Republic of China
- ShanghaiTech Laboratory for Topological Physics, Shanghai 201210, People's Republic of China
| | - K Huang
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, People's Republic of China
| | - M X Wang
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, People's Republic of China
- ShanghaiTech Laboratory for Topological Physics, Shanghai 201210, People's Republic of China
| | - J J Gao
- Key Laboratory of Materials Physics, Institute of Solid State Physics, Chinese Academy of Sciences, HFIPS, Hefei 230031, People's Republic of China
| | - X Luo
- Key Laboratory of Materials Physics, Institute of Solid State Physics, Chinese Academy of Sciences, HFIPS, Hefei 230031, People's Republic of China
| | - L X Yang
- State Key Laboratory of Low Dimensional Quantum Physics and Department of Physics, Tsinghua University, Beijing 100084, People's Republic of China
| | - J P Liu
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, People's Republic of China
- ShanghaiTech Laboratory for Topological Physics, Shanghai 201210, People's Republic of China
| | - Y P Sun
- Key Laboratory of Materials Physics, Institute of Solid State Physics, Chinese Academy of Sciences, HFIPS, Hefei 230031, People's Republic of China
- High Magnetic Field Laboratory, Chinese Academy of Sciences, HFIPS, Hefei, 230031, People's Republic of China
- Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210093, People's Republic of China
| | - S C Yan
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, People's Republic of China
- ShanghaiTech Laboratory for Topological Physics, Shanghai 201210, People's Republic of China
| | - B H Yan
- Department of Condensed Matter Physics, Weizmann Institute of Science, Rehovot 76100, Israel
| | - Y L Chen
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, People's Republic of China
- Department of Physics, University of Oxford, Oxford, OX1 3PU, United Kingdom
- ShanghaiTech Laboratory for Topological Physics, Shanghai 201210, People's Republic of China
- State Key Laboratory of Low Dimensional Quantum Physics and Department of Physics, Tsinghua University, Beijing 100084, People's Republic of China
| | - X Xi
- National Laboratory of Solid State Microstructures and Department of Physics, Nanjing University, Nanjing 210093, People's Republic of China
- Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210093, People's Republic of China
| | - Z K Liu
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, People's Republic of China
- ShanghaiTech Laboratory for Topological Physics, Shanghai 201210, People's Republic of China
| |
Collapse
|
16
|
Chen WJ, Xu Y, Song HW, Zhang SH, Chen SF, Xia LL, Wang Y, Khina BB, Pokrovsky AI. A Novel Hydroforming Process by Combining Internal and External Pressures for High-Strength Steel Wheel Rims. Materials (Basel) 2022; 15:ma15196820. [PMID: 36234161 PMCID: PMC9572992 DOI: 10.3390/ma15196820] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/08/2022] [Revised: 09/24/2022] [Accepted: 09/26/2022] [Indexed: 06/01/2023]
Abstract
As one of the key safety components in motor vehicles, the steel wheel rim is commonly fabricated with the roll forming process. However, due to the varied cross-sections of the rim and the low formability of high-strength steel, it is difficult to produce thin-wall and defect-free wheel rims to realize the purpose of light weight. To solve these problems, a novel hydroforming process by combining internal and external pressures (HIEP) was proposed to produce thin-wall wheel rims in the current study. The designed initial tube with diameter between the maximum and minimum diameter of the wheel rim ensures dispersed deformation and effectively avoids local excessive thinning. During HIEP, a hydroforming process was performed with two successive stages: the external pressure and internal pressure stages. Theoretical analysis and finite element method (FEM) were jointly used to investigate the effect of process parameters on the wrinkling and thinning. With the optimized parameters for internal and external pressure, the wrinkling of wheel rims is prevented under compressive state during the external pressure forming stage. Additionally, HIEP was experimentally carried out with high-strength steel rims of 650 MPa ultimate tensile strength (UTS). Finally, wheel rims with weight reduction of 13% were produced successfully, which shows a uniform thickness distribution with a local maximum thinning ratio of 11.4%.
Collapse
Affiliation(s)
- Wei-Jin Chen
- Shi-Changxu Innovation Center for Advanced Materials, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China
- School of Materials Science and Engineering, University of Science and Technology of China, Shenyang 110016, China
- Research Institute, Baoshan Iron and Steel Co., Ltd., Shanghai 201999, China
| | - Yong Xu
- Shi-Changxu Innovation Center for Advanced Materials, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China
- School of Materials Science and Engineering, University of Science and Technology of China, Shenyang 110016, China
| | - Hong-Wu Song
- Shi-Changxu Innovation Center for Advanced Materials, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China
- School of Materials Science and Engineering, University of Science and Technology of China, Shenyang 110016, China
| | - Shi-Hong Zhang
- Shi-Changxu Innovation Center for Advanced Materials, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China
- School of Materials Science and Engineering, University of Science and Technology of China, Shenyang 110016, China
| | - Shuai-Feng Chen
- Shi-Changxu Innovation Center for Advanced Materials, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China
- School of Materials Science and Engineering, University of Science and Technology of China, Shenyang 110016, China
| | - Liang-Liang Xia
- Shi-Changxu Innovation Center for Advanced Materials, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China
- School of Materials Science and Engineering, University of Science and Technology of China, Shenyang 110016, China
| | - Yong Wang
- Research Institute, Baoshan Iron and Steel Co., Ltd., Shanghai 201999, China
| | - Boris-B. Khina
- Physical-Technical Institute, National Academy of Science of Belarus, 220141 Minsk, Belarus
| | - Artur-I. Pokrovsky
- Physical-Technical Institute, National Academy of Science of Belarus, 220141 Minsk, Belarus
| |
Collapse
|
17
|
Du Y, Xu CL, Yu J, Liu K, Lin SD, Hu TT, Qu FH, Guo F, Lou GD, Nishibori M, Hu WW, Chen Z, Zhang SH. HMGB1 in the mPFC governs comorbid anxiety in neuropathic pain. J Headache Pain 2022; 23:102. [PMID: 35974316 PMCID: PMC9382735 DOI: 10.1186/s10194-022-01475-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [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: 07/07/2022] [Accepted: 08/09/2022] [Indexed: 12/20/2022] Open
Abstract
Background Whether neuroinflammation causes comorbid mood disorders in neuropathic pain remains elusive. Here we investigated the role of high mobility group box 1 protein (HMGB1), a proinflammatory cytokine, in the medial prefrontal cortex (mPFC) in anxiety comorbidity of neuropathic pain. Methods Neuropathic pain was induced by partial transection of the infraorbital nerve (p-IONX) or partial sciatic nerve ligation (PSL) in mice and evaluated by measuring nociceptive thresholds to mechanical and heat stimulation. Anxiety-like behaviors were assessed by elevated plus maze, light dark box and open field tests. Aversive or anti-aversive effect was detected by conditioned place preference test. Neuronal activity was evaluated by single-unit and patch clamp recordings. The contribution of mPFC pyramidal neurons to anxiety was further examined by selectively inhibiting them by optogenetics. HMGB1 expression was measured by immunohistochemistry and western blotting. Antagonism of HMGB1 was achieved by injecting anti-HMGB1 monoclonal antibody (mAb) intracerebrally or intraperitoneally. Results Anxiety-like behaviors were presented earlier after p-IONX than after PSL. HMGB1 expression was upregulated in the mPFC temporally in parallel to anxiety onset, rather than in other regions associated with anxiety. The upregulation of HMGB1 expression and its translocation from the nucleus to cytoplasm in the mPFC occurred predominantly in neurons and were accompanied with activation of microglia and astrocytes. Infusion of anti-HMGB1 mAb into the mPFC during the early and late phases after either p-IONX or PSL alleviated anxiety-like behaviors and aversion without changing pain sensitization, while local infusion of exogenous ds-HMGB1, the proinflammatory form of HMGB1, into the mPFC induced anxiety and aversion but not pain sensitization in naïve mice. In addition to reversing established pain sensitization and anxiety simultaneously, intraperitoneal injection of anti-HMGB1 mAb reduced HMGB1 upregulation and suppressed the hyperexcitability of layer 2/3 pyramidal neurons in the mPFC after p-IONX. Moreover, optogenetic inhibition of mPFC pyramidal neurons alleviated anxiety in p-IONX mice. Conclusion These results demonstrate that HMGB1 in the mPFC drives and maintains anxiety comorbidity in neuropathic pain by increasing the excitability of layer 2/3 pyramidal neurons, and justify antagonism of HMGB1, e.g., neutralization by mAb, as a promising therapeutic strategy for neuropathic pain with anxiety comorbidity. Supplementary Information The online version contains supplementary material available at 10.1186/s10194-022-01475-z.
Collapse
Affiliation(s)
- Yu Du
- Department of Pharmacology and Department of Anesthesiology of the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310058, China.,Key Laboratory of Neuropharmacology and Translational Medicine of Zhejiang Province, College of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou, 310053, China
| | - Ceng-Lin Xu
- Key Laboratory of Neuropharmacology and Translational Medicine of Zhejiang Province, College of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou, 310053, China
| | - Jie Yu
- Key Laboratory of Neuropharmacology and Translational Medicine of Zhejiang Province, College of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou, 310053, China
| | - Keyue Liu
- Department of Pharmacology, Dentistry and Pharmaceutical Sciences, Okayama University Graduate School of Medicine, Okayama, 700-8558, Japan
| | - Shi-Da Lin
- Department of Pharmacology and Department of Anesthesiology of the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310058, China
| | - Ting-Ting Hu
- Key Laboratory of Neuropharmacology and Translational Medicine of Zhejiang Province, College of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou, 310053, China
| | - Feng-Hui Qu
- Department of Pharmacology and Department of Anesthesiology of the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310058, China
| | - Fang Guo
- Department of Pharmacology and Department of Anesthesiology of the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310058, China
| | - Guo-Dong Lou
- Department of Pharmacy, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, 310016, China
| | - Masahiro Nishibori
- Department of Pharmacology, Dentistry and Pharmaceutical Sciences, Okayama University Graduate School of Medicine, Okayama, 700-8558, Japan
| | - Wei-Wei Hu
- Department of Pharmacology and Department of Anesthesiology of the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310058, China.
| | - Zhong Chen
- Key Laboratory of Neuropharmacology and Translational Medicine of Zhejiang Province, College of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou, 310053, China.
| | - Shi-Hong Zhang
- Department of Pharmacology and Department of Anesthesiology of the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310058, China.
| |
Collapse
|
18
|
Li H, Chen SF, Zhang SH, Xu Y, Song HW. Deformation Characteristics, Formability and Springback Control of Titanium Alloy Sheet at Room Temperature: A Review. Materials (Basel) 2022; 15:ma15165586. [PMID: 36013722 PMCID: PMC9414495 DOI: 10.3390/ma15165586] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/16/2022] [Revised: 07/10/2022] [Accepted: 07/25/2022] [Indexed: 06/01/2023]
Abstract
Titanium alloy sheets present inferior formability and severe springback in conventional forming processes at room temperature which greatly restrict their applications in complex-shaped components. In this paper, deformation characteristics and formability and springback behaviors of titanium alloy sheet at room temperature are systematically reviewed. Firstly, deformation characteristics of titanium alloys at room temperature are discussed, and formability improvement under high-rate forming and other methods are summarized, especially the impacting hydroforming developed by us. Then, the main advances in springback prediction and control are outlined, including the advanced constitutive models as well as the optimization of processing paths and parameters. More importantly, notable springback reduction is observed with high strain rate forming methods. Finally, potential investigation prospects for the precise forming of titanium alloy sheet in the future are suggested.
Collapse
Affiliation(s)
- Hao Li
- Shi-changxu Innovation Center for Advanced Materials, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China
- School of Materials Science and Engineering, University of Science and Technology of China, Shenyang 110016, China
| | - Shuai-Feng Chen
- Shi-changxu Innovation Center for Advanced Materials, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China
| | - Shi-Hong Zhang
- Shi-changxu Innovation Center for Advanced Materials, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China
| | - Yong Xu
- Shi-changxu Innovation Center for Advanced Materials, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China
| | - Hong-Wu Song
- Shi-changxu Innovation Center for Advanced Materials, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China
| |
Collapse
|
19
|
Batool W, Liu C, Fan X, Zhang P, Hu Y, Wei Y, Zhang SH. AGC/AKT Protein Kinase SCH9 Is Critical to Pathogenic Development and Overwintering Survival in Magnaporthe oryzae. J Fungi (Basel) 2022; 8:jof8080810. [PMID: 36012798 PMCID: PMC9410157 DOI: 10.3390/jof8080810] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2022] [Revised: 07/25/2022] [Accepted: 07/27/2022] [Indexed: 02/06/2023] Open
Abstract
Primary inoculum that survives overwintering is one of the key factors that determine the outbreak of plant disease. Pathogenic resting structures, such as chlamydospores, are an ideal inoculum for plant disease. Puzzlingly, Magnaporthe oryzae, a devastating fungal pathogen responsible for blast disease in rice, hardly form any morphologically changed resting structures, and we hypothesize that M. oryzae mainly relies on its physiological alteration to survive overwintering or other harsh environments. However, little progress on research into regulatory genes that facilitate the overwintering of rice blast pathogens has been made so far. Serine threonine protein kinase AGC/AKT, MoSch9, plays an important role in the spore-mediated pathogenesis of M. oryzae. Building on this finding, we discovered that in genetic and biological terms, MoSch9 plays a critical role in conidiophore stalk formation, hyphal-mediated pathogenesis, cold stress tolerance, and overwintering survival of M. oryzae. We discovered that the formation of conidiophore stalks and disease propagation using spores was severely compromised in the mutant strains, whereas hyphal-mediated pathogenesis and the root infection capability of M. oryzae were completely eradicated due to MoSch9 deleted mutants’ inability to form an appressorium-like structure. Most importantly, the functional and transcriptomic study of wild-type and MoSch9 mutant strains showed that MoSch9 plays a regulatory role in cold stress tolerance of M. oryzae through the transcription regulation of secondary metabolite synthesis, ATP hydrolyzing, and cell wall integrity proteins during osmotic stress and cold temperatures. From these results, we conclude that MoSch9 is essential for fungal infection-related morphogenesis and overwintering of M. oryzae.
Collapse
|
20
|
Li LX, Lu JK, Li BJ, Gao Q, He CQ, Zhang SH, Zhao YJ, He S, Wen Q. The optimum parameters and neuroimaging mechanism of repetitive transcranial magnetic stimulation to post-stroke cognitive impairment, a protocol of an orthogonally-designed randomized controlled trial. PLoS One 2022; 17:e0271283. [PMID: 35862342 PMCID: PMC9302729 DOI: 10.1371/journal.pone.0271283] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2021] [Accepted: 06/14/2022] [Indexed: 11/26/2022] Open
Abstract
Objective Repetitive Transcranial Magnetic Stimulation (rTMS) has been used in cognition impairment due to various neuropsychiatric disorders. However, its optimum parameters and the neuroimaging mechanism are still of uncertainty. In order to simulate a study setting as close to real world as possible, the present study introduces a new orthogonally-designed protocol, consisting of the rTMS intervention with four key parameters (stimulating site, frequency, intensity and pulse number) and three different levels in each one, and aims to investigate the optimum parameters and the brain activity and connectivity in default mode network (DMN), dorsal attention network (DAN), central executive network (CEN) following rTMS intervention to post-stroke cognition impairment (PSCI). Methods A single-center, orthogonally-designed, triple-blind randomized controlled trial will be conducted and forty-five PSCI patients will be recruited and randomly assigned to one of nine active rTMS groups based on four rTMS paraments: stimulating site, frequency, intensity and pulse number. Neuropsychological, activities of daily living, quality of life and functional magnetic resonance imaging (fMRI) evaluations were be performed pre-, post- and 3 months after rTMS. Discussion This study evaluates the optimum parameters of rTMS for patients with post-stroke cognition impairment and explores the alteration of neural function in DMN, DAN, CEN brain network. These results would facilitate the standardized application of rTMS in cognition impairment rehabilitation.
Collapse
Affiliation(s)
- Ling-Xin Li
- Department of Rehabilitation Medicine, West China Hospital, Sichuan University, Chengdu, Sichuan, China
- Key Laboratory of Rehabilitation Medicine in Sichuan Province, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Jing-Kang Lu
- Department of Rehabilitation Medicine, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Bao-Jin Li
- Department of Rehabilitation Medicine, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Qiang Gao
- Department of Rehabilitation Medicine, West China Hospital, Sichuan University, Chengdu, Sichuan, China
- Key Laboratory of Rehabilitation Medicine in Sichuan Province, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Cheng-Qi He
- Department of Rehabilitation Medicine, West China Hospital, Sichuan University, Chengdu, Sichuan, China
- Key Laboratory of Rehabilitation Medicine in Sichuan Province, West China Hospital, Sichuan University, Chengdu, Sichuan, China
- * E-mail:
| | - Shi-Hong Zhang
- Department of Neurology, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - You-Jin Zhao
- Huaxi MR Research Center (HMRRC), Department of Radiology, West China Hospital of Sichuan University, Chengdu, Sichuan, China
| | - Shuai He
- Department of Radiology, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Qian Wen
- Department of Integrated Traditional and Western Medicine, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| |
Collapse
|
21
|
Abd El-Aty A, Xu Y, Zhang SH, Guo X, Tao J, Lee MG. Phenomenological-based constitutive modelling of warm deformation behavior of high-Strength lightweight AL-Li alloy sheets. IOP Conf Ser : Mater Sci Eng 2022; 1238:012017. [DOI: 10.1088/1757-899x/1238/1/012017] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
Abstract
Abstract
The flow behavior and formability of Al-Li alloys under warm forming conditions are complicated because they depend on several factors, such as the deformation mode, strain, and strain rates. Therefore, characterizing the mechanical response, and deformation behavior of AA2060-T8 sheets under a wide range of temperatures and strain rates is crucial to develop a new thermo-mechanical processing (TMP) route for their wide industrial applications. Furthermore, determining the activation energy (Q) and predicting the flow behaviour of AA2060-T8 sheets under warm forming temperatures is meaningful for characterizing the mechanical response of AA2060-T8 sheets at warm deformation conditions. Thus, in this study, the Arrhenius constitutive model is developed to investigate the influence of strain rate and temperature on the warm deformation behaviour of AA2060-T8 and determine the activation energy (Q) of AA2060-T8, which is a crucial physical parameter to estimate the difficulties of deforming AA2060-T8 sheets under warm forming conditions.
Collapse
|
22
|
Zhang P, Fang Z, Song Y, Wang S, Bao L, Liu M, Dang Y, Wei Y, Zhang SH. Aspartate Transaminase AST2 Involved in Sporulation and Necrotrophic Pathogenesis in the Hemibiotrophs Magnaporthe oryzae and Colletotrichum graminicola. Front Microbiol 2022; 13:864866. [PMID: 35479642 PMCID: PMC9037547 DOI: 10.3389/fmicb.2022.864866] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2022] [Accepted: 02/10/2022] [Indexed: 11/23/2022] Open
Abstract
Aspartate family includes five additional amino acids other than aspartate, among which most except aspartate have been reported for their action in pathogenesis by amino acid biosynthesis. However, how aspartate, the initial substrate of this family metabolic pathway, is involved in pathogenesis remains unknown. Here, we focused on aspartate transaminase (AST) that catalyzes transamination reaction between glutamate-aspartate in Magnaporthe oryzae. Three MoAST genes were bioinformatically analyzed, of which MoAST2 was uniquely upregulated when invasive hyphae switched to necrotrophic pathogenesis. MoAST2 deletion (ΔMoast2) caused a drastic reduction in conidiogenesis and appressorium formation. Particularly, ΔMoast2 was observed to be proliferated at the biotrophic phase but inhibited at the necrotrophic stage, and with invisible symptoms detected, suggesting a critical role in necrotrophic phase. Glutamate family restored the ΔMoast2 defects but aspartate family did not, inferring that transamination occurs from aspartate to glutamine. MoAST2 is cytosolic and possessed H2O2 stress tolerance. In parallel, Colletotrichum graminicola AST2, CgAST2 was proven to be a player in necrotrophic anthracnose development. Therefore, conserved AST2 is qualified to be a drug target for disease control.
Collapse
Affiliation(s)
- Penghui Zhang
- College of Plant Sciences, Jilin University, Changchun, China
| | - Zhenyu Fang
- College of Plant Sciences, Jilin University, Changchun, China
| | - Yanyue Song
- College of Plant Sciences, Jilin University, Changchun, China
| | - Shaowei Wang
- College of Plant Sciences, Jilin University, Changchun, China
| | - Lina Bao
- College of Plant Sciences, Jilin University, Changchun, China
| | - Mingyu Liu
- College of Plant Sciences, Jilin University, Changchun, China
| | - Yuejia Dang
- College of Plant Protection, Shenyang Agricultural University, Shenyang, China
| | - Yi Wei
- College of Plant Protection, Shenyang Agricultural University, Shenyang, China
| | - Shi-Hong Zhang
- College of Plant Sciences, Jilin University, Changchun, China.,College of Plant Protection, Shenyang Agricultural University, Shenyang, China
| |
Collapse
|
23
|
Zhang SH, Li JY, Zhang J. [Challenges of maintaining malaria elimination in China: Cross-border malaria]. Zhongguo Xue Xi Chong Bing Fang Zhi Za Zhi 2022; 34:115-116. [PMID: 35537830 DOI: 10.16250/j.32.1374.2022064] [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] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
China was certificated malaria-free by WHO in 2021 and has continued to maintain malaria elimination. However, there are still huge challenges in malaria control in the border regions between Yunnan Province, China and Myanmar due to lack of geographic barriers and frequent cross-border travel. Hereby, we review the direction contributions of the Global Fund Malaria Program implemented by Health Poverty Action (HPA), an international non-governmental organization (NGO), to malaria elimination in China, and analyze the challenges of malaria control caused by external environmental factors, such as COVID-19, in regions where the Global Fund Malaria Program is implemented. In addition, some suggestions are proposed for cross-border collaboration on malaria control.
Collapse
Affiliation(s)
- S H Zhang
- The Health Poverty Action (HPA) Yunnan Office, Kunming, Yunnan 650224, China
| | - J Y Li
- The Health Poverty Action (HPA) Yunnan Office, Kunming, Yunnan 650224, China
| | - J Zhang
- The Health Poverty Action (HPA) Yunnan Office, Kunming, Yunnan 650224, China
| |
Collapse
|
24
|
Guo F, Du Y, Qu FH, Lin SD, Chen Z, Zhang SH. Dissecting the Neural Circuitry for Pain Modulation and Chronic Pain: Insights from Optogenetics. Neurosci Bull 2022; 38:440-452. [PMID: 35249185 PMCID: PMC9068856 DOI: 10.1007/s12264-022-00835-8] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2021] [Accepted: 11/25/2021] [Indexed: 12/17/2022] Open
Abstract
Pain is an unpleasant sensory and emotional experience associated with, or resembling that associated with, actual or potential tissue damage. The processing of pain involves complicated modulation at the levels of the periphery, spinal cord, and brain. The pathogenesis of chronic pain is still not fully understood, which makes the clinical treatment challenging. Optogenetics, which combines optical and genetic technologies, can precisely intervene in the activity of specific groups of neurons and elements of the related circuits. Taking advantage of optogenetics, researchers have achieved a body of new findings that shed light on the cellular and circuit mechanisms of pain transmission, pain modulation, and chronic pain both in the periphery and the central nervous system. In this review, we summarize recent findings in pain research using optogenetic approaches and discuss their significance in understanding the pathogenesis of chronic pain.
Collapse
Affiliation(s)
- Fang Guo
- Department of Pharmacology and Department of Anesthesiology of the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310058, China
| | - Yu Du
- Department of Pharmacology and Department of Anesthesiology of the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310058, China
| | - Feng-Hui Qu
- Department of Pharmacology and Department of Anesthesiology of the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310058, China
| | - Shi-Da Lin
- Department of Pharmacology and Department of Anesthesiology of the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310058, China
| | - Zhong Chen
- Key Laboratory of Neuropharmacology and Translational Medicine of Zhejiang Province, College of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou, 310053, China.
| | - Shi-Hong Zhang
- Department of Pharmacology and Department of Anesthesiology of the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310058, China.
| |
Collapse
|
25
|
Zhao F, Yu XP, Zhao H, Song BB, Lyu AW, Zhang SH, Wang LM. [Expression and significance of GLI1 and Shh in the malignant transformation of ovarian endometriosis]. Zhonghua Fu Chan Ke Za Zhi 2022; 57:125-132. [PMID: 35184473 DOI: 10.3760/cma.j.cn112141-20211219-00736] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Objective: To investigate the expression levels and clinical significance of glioma-associated oncogene homolog 1 (GLI1) and sonic hedgehog signaling molecule (Shh) in the malignant transformation of ovarian endometriosis (EM). Methods: The expressions of GLI1 and Shh were detected by real-time reverse transcription (RT)-polymerase chain reaction (PCR) and EnVision method in 50 cases of ovarian EM tissues, 35 cases of atypical endometriosis (aEM) and 50 cases of endometriosis-associated ovarian cancer (EAOC). The expression differences of two molecular markers in the malignant transformation of ovarian EM were compared, and the relationships between two molecular markers and the clinicopathological features and prognosis of EAOC were analyzed. Results: (1) RT-PCR showed that the expression levels of GLI1 mRNA in EM, aEM and EAOC group were 1.77±0.40, 3.54±0.44, and 7.80±0.24, respectively. The expression levels of Shh mRNA were 0.95±0.21, 3.14±0.35, and 5.41±0.31, respectively. GLI1 and Shh mRNA in EAOC group were significantly higher than those in EM and aEM group (all P<0.01), and there were statistically significant differences between EM and aEM group (all P<0.01). The percentages of GLI1 in ovarian EM, aEM and EAOC were 32% (16/50), 57% (20/35), and 66% (33/50), respectively, meanwhile, the positive expression rates of Shh were 20% (10/50), 49% (17/35), and 54% (27/50), respectively (all P<0.01). GLI1 mRNA expression was positively correlated with Shh mRNA expression in EAOC tissues (r=0.721, P<0.01). The expressions of GLI1 protein were proportionated to Shh protein in EAOC tissues (r=0.608,P=0.001). (2) The expression of GLI1 was significantly related to the International Federation of Gynecology and Obstetrics (FIGO) stage, cancer antigen 125 (CA125) levels, lymph node metastasis, and Platinum resistance in EAOC patients (all P<0.05). The expression of Shh were related to FIGO stage and lymph node metastasis in EAOC patients (all P<0.05). Logistic regression analysis showed that GLI1 expression was an independent risk factor for poor prognosis in EAOC patients (P<0.05). Kaplan-meier survival analysis showed that the overall survival rate of EAOC patients with high GLI1 expression and low GLI1 expression was 12.1% and 35.3%, respectively, with statistical significance (χ²=10.73, P<0.01). The overall survival rate of EAOC patients with high and low expression of Shh protein was 11.1% and 30.4%, in which there was statistically significant difference (χ²=3.96, P=0.047). Conclusion: GLI1 and Shh are highly associated with the malignant transformation of ovarian EM, which may play a role in promoting malignant degeneration of ovarian EM, and the high expression of GLI1 and Shh indicates a poor prognosis in EAOC patients.
Collapse
Affiliation(s)
- F Zhao
- Department of Gynecology, Qingdao University Affiliated Hospital, Qingdao 266003, China
| | - X P Yu
- Department of Gynecology, Qingdao University Affiliated Hospital, Qingdao 266003, China
| | - H Zhao
- Department of Gynecology, Qingdao University Affiliated Hospital, Qingdao 266003, China
| | - B B Song
- Department of Gynecology, Shandong Weihai Women's and Children's Hospital, Weihai 264299, China
| | - A W Lyu
- Department of Gynecology, Qingdao University Affiliated Hospital, Qingdao 266003, China
| | - S H Zhang
- Department of Obstetrics and Gynecology, Shandong Weihai Municipal Hospital, Weihai 264299, China
| | - L M Wang
- Department of Gynecology, Qingdao University Affiliated Hospital, Qingdao 266003, China
| |
Collapse
|
26
|
Dang Y, Wei Y, Batool W, Sun X, Li X, Zhang SH. Contribution of the Mitochondrial Carbonic Anhydrase (MoCA1) to Conidiogenesis and Pathogenesis in Magnaporthe oryzae. Front Microbiol 2022; 13:845570. [PMID: 35250959 PMCID: PMC8891501 DOI: 10.3389/fmicb.2022.845570] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Accepted: 01/24/2022] [Indexed: 01/12/2023] Open
Abstract
The interconversion of CO2 and HCO3− catalyzed by carbonic anhydrases (CAs) is a fundamental biochemical process in organisms. During mammalian–pathogen interaction, both host and pathogen CAs play vital roles in resistance and pathogenesis; during planta–pathogen interaction, however, plant CAs function in host resistance but whether pathogen CAs are involved in pathogenesis is unknown. Here, we biologically characterized the Magnaporthe oryzae CA (MoCA1). Through detecting the DsRED-tagged proteins, we observed the fusion MoCA1 in the mitochondria of M. oryzae. Together with the measurement of CA activity, we confirmed that MoCA1 is a mitochondrial zinc-binding CA. MoCA1 expression, upregulated with H2O2 or NaHCO3 treatment, also showed a drastic upregulation during conidiogenesis and pathogenesis. When MoCA1 was deleted, the mutant ΔMoCA1 was defective in conidiophore development and pathogenicity. 3,3′-Diaminobenzidine (DAB) staining indicated that more H2O2 accumulated in ΔMoCA1; accordingly, ATPase genes were downregulated and ATP content decreased in ΔMoCA1. Summarily, our data proved the involvement of the mitochondrial MoCA1 in conidiogenesis and pathogenesis in the rice blast fungus. Considering the previously reported HCO3− transporter MoAE4, we propose that MoCA1 in cooperation with MoAE4 constitutes a HCO3− homeostasis-mediated disease pathway, in which MoCA1 and MoAE4 can be a drug target for disease control.
Collapse
Affiliation(s)
- Yuejia Dang
- Center for Extreme-Environmental Microorganisms, Shenyang Agricultural University, Shenyang, China
- College of Plant Protection, Shenyang Agricultural University, Shenyang, China
| | - Yi Wei
- Center for Extreme-Environmental Microorganisms, Shenyang Agricultural University, Shenyang, China
- College of Plant Protection, Shenyang Agricultural University, Shenyang, China
| | - Wajjiha Batool
- Center for Extreme-Environmental Microorganisms, Shenyang Agricultural University, Shenyang, China
- College of Plant Protection, Shenyang Agricultural University, Shenyang, China
| | - Xicen Sun
- Center for Extreme-Environmental Microorganisms, Shenyang Agricultural University, Shenyang, China
- College of Plant Protection, Shenyang Agricultural University, Shenyang, China
| | - Xiaoqian Li
- Center for Extreme-Environmental Microorganisms, Shenyang Agricultural University, Shenyang, China
- College of Plant Protection, Shenyang Agricultural University, Shenyang, China
| | - Shi-Hong Zhang
- Center for Extreme-Environmental Microorganisms, Shenyang Agricultural University, Shenyang, China
- College of Plant Protection, Shenyang Agricultural University, Shenyang, China
- *Correspondence: Shi-Hong Zhang,
| |
Collapse
|
27
|
Li F, Ni H, Yan W, Xie Y, Liu X, Tan X, Zhang L, Zhang SH. Overexpression of an aquaporin protein from Aspergillus glaucus confers salt tolerance in transgenic soybean. Transgenic Res 2021; 30:727-737. [PMID: 34460070 DOI: 10.1007/s11248-021-00280-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2020] [Accepted: 08/18/2021] [Indexed: 10/20/2022]
Abstract
Salt stress is an important abiotic factor that causes severe losses in soybean yield and quality. Therefore, breeding salt-tolerant soybean germplasm resources via genetic engineering has gained importance. Aspergillus glaucus, a halophilic fungus that exhibits significant tolerance to salt, carries the gene AgGlpF. In this study, we used the soybean cotyledonary node transformation method to transfer the AgGlpF gene into the genome of the soybean variety Williams 82 to generate salt-tolerant transgenic soybean varieties. The results of PCR, Southern blot, ddPCR, and RT-PCR indicated that AgGlpF was successfully integrated into the soybean genome and stably expressed. When subjected to salt stress conditions via treatment with 250 mM NaCl for 3 d, the transgenic soybean plants showed significant tolerance compared with wild-type plants, which exhibited withering symptoms and leaf abscission after 9 d. The results of this study indicated that the transfer of AgGlpF into the genome of soybean plants produced transgenic soybean with significantly improved salt stress tolerance.
Collapse
Affiliation(s)
- Feiwu Li
- College of Plant Science, Jilin University, No. 5333, Xi'an Str., Lvyuan District, Changchun, 130062, Jilin, People's Republic of China
- Jilin Provincial Key Laboratory of Agricultural Biotechnology, Jilin Academy of Agricultural Sciences, No. 1363, Shengtai Str., Jingyue District, Changchun, 130033, Jilin, People's Republic of China
| | - Hejia Ni
- College of Agriculture, Northeast Agricultural University, Harbin, 150036, People's Republic of China
| | - Wei Yan
- Jilin Provincial Key Laboratory of Agricultural Biotechnology, Jilin Academy of Agricultural Sciences, No. 1363, Shengtai Str., Jingyue District, Changchun, 130033, Jilin, People's Republic of China
| | - Yanbo Xie
- Jilin Provincial Key Laboratory of Agricultural Biotechnology, Jilin Academy of Agricultural Sciences, No. 1363, Shengtai Str., Jingyue District, Changchun, 130033, Jilin, People's Republic of China
| | - Xiaodan Liu
- Institute of Bioengineering, Jilin Agriculture Science and Technology College, Jilin, 132101, Jilin, People's Republic of China
| | - Xichang Tan
- Jilin Provincial Key Laboratory of Agricultural Biotechnology, Jilin Academy of Agricultural Sciences, No. 1363, Shengtai Str., Jingyue District, Changchun, 130033, Jilin, People's Republic of China
| | - Ling Zhang
- Jilin Provincial Key Laboratory of Agricultural Biotechnology, Jilin Academy of Agricultural Sciences, No. 1363, Shengtai Str., Jingyue District, Changchun, 130033, Jilin, People's Republic of China.
| | - Shi-Hong Zhang
- College of Plant Science, Jilin University, No. 5333, Xi'an Str., Lvyuan District, Changchun, 130062, Jilin, People's Republic of China.
| |
Collapse
|
28
|
Cao LJ, Peng XL, Xue WQ, Zhang R, Zhang JB, Zhou T, Wu ZY, Li GR, Wang TM, He YQ, Yang DW, Liao Y, Tong XT, Wang F, Chen KX, Zhang SH, Zhu LQ, Ding PR, Jia WH. A fecal-based test for the detection of advanced adenoma and colorectal cancer: a case-control and screening cohort study. BMC Med 2021; 19:250. [PMID: 34689777 PMCID: PMC8543798 DOI: 10.1186/s12916-021-02123-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/03/2021] [Accepted: 09/13/2021] [Indexed: 12/27/2022] Open
Abstract
BACKGROUND Colorectal cancer (CRC) is the leading cause of cancer death worldwide. Screening is a confirmed way to reduce the incidence and mortality rates of CRC. This study aimed to identify a fecal-based, noninvasive, and accurate method for detection of colorectal cancer (CRC) and advanced adenoma (AA). METHODS Through detection in tissue (n = 96) and fecal samples (n = 88) and tested in an independent group of fecal samples (n = 294), the methylated DNA marker ITGA4 and bacterial markers Fusobacterium nucleatum (Fn) and Pepetostreptococcusanaerobius (Pa) were identified from the candidate biomarkers for CRC and AA detection. A prediction score (pd-score) was constructed using the selected markers and fecal immunochemical test (FIT) for distinguishing AA and CRC from healthy subjects by logistic regression method. The diagnostic performance of the pd-score was compared with FIT and validated in the external validation cohort (n = 117) and in a large CRC screening cohort. RESULTS The pd-score accurately identified AA and CRC from healthy subjects with an area under the curve (AUC) of 0.958, at a specificity of 91.37%; the pd-score showed sensitivities of 95.38% for CRC and 70.83% for AA, respectively. In the external validation cohort, the sensitivities of the pd-score for CRC and AA detection were 94.03% and 80.00%, respectively. When applied in screening, the pd-score identified 100% (11/11) of CRC and 70.83% (17/24) of AA in participants with both colonoscopy results and qualified fecal samples, showing an improvement by 41.19% compared to FIT. CONCLUSIONS The current study developed a noninvasive and well-validated approach for AA and CRC detection, which could be applied widely as a diagnostic and screening test.
Collapse
Affiliation(s)
- Lian-Jing Cao
- State Key Laboratory of Oncology in South China Guangzhou, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, People's Republic of China.,Department of Radiation Oncology, Affiliated Hospital of Qingdao University, Qingdao, People's Republic of China
| | - Xiao-Lin Peng
- Shenzhen Nanshan Center for Chronic Disease Control, Shenzhen, People's Republic of China
| | - Wen-Qiong Xue
- State Key Laboratory of Oncology in South China Guangzhou, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, People's Republic of China
| | - Rong Zhang
- Department of Endoscopy and Laser, Sun Yat-Sen University Cancer Center, Guangzhou, People's Republic of China
| | - Jiang-Bo Zhang
- State Key Laboratory of Oncology in South China Guangzhou, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, People's Republic of China
| | - Ting Zhou
- State Key Laboratory of Oncology in South China Guangzhou, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, People's Republic of China.,Biobank of Sun Yat-sen University Cancer Center, Guangzhou, People's Republic of China
| | - Zi-Yi Wu
- State Key Laboratory of Oncology in South China Guangzhou, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, People's Republic of China
| | - Gai-Rui Li
- Shenzhen Nanshan Center for Chronic Disease Control, Shenzhen, People's Republic of China
| | - Tong-Min Wang
- State Key Laboratory of Oncology in South China Guangzhou, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, People's Republic of China
| | - Yong-Qiao He
- State Key Laboratory of Oncology in South China Guangzhou, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, People's Republic of China
| | - Da-Wei Yang
- School of Public Health, Sun Yat-Sen University, Guangzhou, People's Republic of China
| | - Ying Liao
- State Key Laboratory of Oncology in South China Guangzhou, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, People's Republic of China
| | - Xia-Ting Tong
- School of Public Health, Sun Yat-Sen University, Guangzhou, People's Republic of China
| | - Fang Wang
- Department of Radiation Oncology, Affiliated Cancer Hospital and Institute of Guangzhou Medical University, Guangzhou, Guangdong, People's Republic of China
| | - Ke-Xin Chen
- Department of Epidemiology and Biostatistics, Key Laboratory of Cancer Prevention and Therapy, Tianjin Key Laboratory of Breast Cancer Prevention and Therapy, Ministry of Education, National Clinical Research Center for Cancer, Tianjin Medical University Cancer Institute and Hospital, Tianjin, People's Republic of China
| | - Shi-Hong Zhang
- Department of Laboratory Medicine, First Affiliated Hospital, Sun Yat-sen University, Guangzhou, People's Republic of China
| | - Li-Qing Zhu
- Shenzhen Nanshan Center for Chronic Disease Control, Shenzhen, People's Republic of China
| | - Pei-Rong Ding
- Department of Colorectal Surgery, Sun Yat-sen University Cancer Center, Guangzhou, People's Republic of China
| | - Wei-Hua Jia
- State Key Laboratory of Oncology in South China Guangzhou, Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, People's Republic of China. .,Biobank of Sun Yat-sen University Cancer Center, Guangzhou, People's Republic of China. .,School of Public Health, Sun Yat-Sen University, Guangzhou, People's Republic of China.
| |
Collapse
|
29
|
Yang Q, Zhang JY, Zhang XC, Xia RC, Yu H, Qu YL, Wang ZW, Tan R, Zhang SH, Li CT, Gao YZ. Mitochondrial DNA Polymorphism in Zhejiang She Population Based on Next Generation Sequencing. Fa Yi Xue Za Zhi 2021; 37:358-365. [PMID: 34379905 DOI: 10.12116/j.issn.1004-5619.2020.501101] [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] [Received: 11/04/2020] [Indexed: 11/30/2022]
Abstract
Abstract Objective To study the genetic polymorphism of whole mitochondrial DNA (mtDNA) genomes in She population in Zhejiang and to explore the maternal genetic structure of the She population. Methods Whole mtDNA genomes of 231 unrelated individuals from She population in Zhejiang Province were sequenced. The number of mutations and population genetics parameters such as, the haplotype diversity (HD), discrimination power (DP), and random match probabilities (RMP) were analyzed. The mtDNA haplogroups of Zhejiang She population were classified, and the maternal genetic relationships between She and nine other Chinese populations were estimated. Results In 231 Zhejiang She samples, 8 507 mutations (702 types) were observed and the samples were classified into 94 haplogroups. The HD, DP and RMP values were 0.998 6, 0.994 2 and 0.005 8, respectively. The lowest genetic differentiation degree (Fst=0.006 89) was detected between Zhejiang She population and southern Han population. Principal component analysis (PCA) and median-joining network analysis showed that the genetic distance of Zhejiang She population with Guangxi Yao, Yunnan Dai and Southern Han populations was relatively close, but the population still had some unique genetic characteristics. Conclusion The whole mtDNA genomes are highly polymorphic in Zhejiang She population. The Zhejiang She population contains complex and diverse genetic components and has a relatively close maternal genetic relationship with Guangxi Yao, Yunnan Dai and Southern Han populations. Meanwhile, Zhejiang She population has kept its unique maternal genetic components.
Collapse
Affiliation(s)
- Q Yang
- Department of Forensic Medicine, Medical College of Soochow University, Suzhou 215123, China.,Shanghai Key Laboratory of Forensic Medicine, Key Laboratory of Forensic Science, Ministry of Justice, Shanghai Forensic Service Platform, Academy of Forensic Science, Shanghai 200063, China
| | - J Y Zhang
- Shanghai Key Laboratory of Forensic Medicine, Key Laboratory of Forensic Science, Ministry of Justice, Shanghai Forensic Service Platform, Academy of Forensic Science, Shanghai 200063, China.,Laboratory of Obstetrics and Gynecology, the Affiliated Luoyang Central Hospital, Zhengzhou University, Luoyang 471000, Henan Province, China
| | - X C Zhang
- Department of Forensic Medicine, Medical College of Soochow University, Suzhou 215123, China.,Shanghai Key Laboratory of Forensic Medicine, Key Laboratory of Forensic Science, Ministry of Justice, Shanghai Forensic Service Platform, Academy of Forensic Science, Shanghai 200063, China
| | - R C Xia
- Shanghai Key Laboratory of Forensic Medicine, Key Laboratory of Forensic Science, Ministry of Justice, Shanghai Forensic Service Platform, Academy of Forensic Science, Shanghai 200063, China.,Department of Forensic Medicine, School of Basic Medical Sciences, Wenzhou Medical University, Wenzhou 325035, Zhejiang Province, China
| | - H Yu
- Department of Forensic Medicine, Medical College of Soochow University, Suzhou 215123, China.,Shanghai Key Laboratory of Forensic Medicine, Key Laboratory of Forensic Science, Ministry of Justice, Shanghai Forensic Service Platform, Academy of Forensic Science, Shanghai 200063, China
| | - Y L Qu
- Department of Forensic Medicine, Medical College of Soochow University, Suzhou 215123, China.,Shanghai Key Laboratory of Forensic Medicine, Key Laboratory of Forensic Science, Ministry of Justice, Shanghai Forensic Service Platform, Academy of Forensic Science, Shanghai 200063, China
| | - Z W Wang
- Department of Forensic Medicine, Medical College of Soochow University, Suzhou 215123, China.,Shanghai Key Laboratory of Forensic Medicine, Key Laboratory of Forensic Science, Ministry of Justice, Shanghai Forensic Service Platform, Academy of Forensic Science, Shanghai 200063, China
| | - R Tan
- Department of Forensic Medicine, Medical College of Soochow University, Suzhou 215123, China.,Shanghai Key Laboratory of Forensic Medicine, Key Laboratory of Forensic Science, Ministry of Justice, Shanghai Forensic Service Platform, Academy of Forensic Science, Shanghai 200063, China
| | - S H Zhang
- Shanghai Key Laboratory of Forensic Medicine, Key Laboratory of Forensic Science, Ministry of Justice, Shanghai Forensic Service Platform, Academy of Forensic Science, Shanghai 200063, China
| | - C T Li
- Department of Forensic Medicine, Medical College of Soochow University, Suzhou 215123, China.,Shanghai Key Laboratory of Forensic Medicine, Key Laboratory of Forensic Science, Ministry of Justice, Shanghai Forensic Service Platform, Academy of Forensic Science, Shanghai 200063, China
| | - Y Z Gao
- Department of Forensic Medicine, Medical College of Soochow University, Suzhou 215123, China
| |
Collapse
|
30
|
Han BF, Huang NH, Chen LY, Zhao TS, Liu HY, Zhang SH, Wang Y, Zheng H, Liu B, Wang C, Liu YQ, Lu QB, Cui FQ. [Development and outlook on human challenge trial of vaccine]. Zhonghua Liu Xing Bing Xue Za Zhi 2021; 42:1371-1375. [PMID: 34814556 DOI: 10.3760/cma.j.cn112338-20210506-00368] [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: 06/13/2023]
Abstract
Human challenge trial (HCT) is a test in which human volunteers are intentionally infected with pathogens in order to evaluate the efficacy of candidate preventive or therapeutic drugs. During the COVID-19 pandemic, the HCT of vaccines has aroused people's attention due to its significant advantages over clinical trial. This paper introduces the concept, development and application of HCT, the advantages and limitations of HCT for vaccine evaluation, and the consideration of future HCT of COVID-19 vaccine in China.
Collapse
Affiliation(s)
- B F Han
- School of Public Health, Peking University, Beijing 100191, China
| | - N H Huang
- School of Public Health, Peking University, Beijing 100191, China
| | - L Y Chen
- School of Public Health, Peking University, Beijing 100191, China
| | - T S Zhao
- School of Public Health, Peking University, Beijing 100191, China
| | - H Y Liu
- School of Public Health, Peking University, Beijing 100191, China
| | - S H Zhang
- School of Public Health, Peking University, Beijing 100191, China
| | - Y Wang
- School of Public Health, Peking University, Beijing 100191, China
| | - H Zheng
- School of Public Health, Peking University, Beijing 100191, China National Immunization Program, Chinese Center for Disease Control and Prevention, Beijing 100050, China
| | - B Liu
- School of Public Health, Peking University, Beijing 100191, China
| | - C Wang
- School of Public Health, Peking University, Beijing 100191, China
| | - Y Q Liu
- School of Public Health, Peking University, Beijing 100191, China
| | - Q B Lu
- School of Public Health, Peking University, Beijing 100191, China
| | - F Q Cui
- School of Public Health, Peking University, Beijing 100191, China
| |
Collapse
|
31
|
Zhou Y, Zhang SH, Zhao XX, Chen WL, Lei Q, He BW, Huang WX, Wu D, Chen J. [Evaluation on applicationof virtual reality technology in dental implant process training]. Zhonghua Kou Qiang Yi Xue Za Zhi 2021; 56:799-804. [PMID: 34404147 DOI: 10.3760/cma.j.cn112144-20201210-00608] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To explore the application effect and evaluation of virtual reality technology in oral implant therapy training. Methods: In November 2018, one adult patient (female, 36 years old) with missing right mandibular first molar was treated in the Department of Implantology, School and Hospital of Stomatology, Fujian Medical University. The three-dimensional virtual models of mandible and implant surgery tools were established, and the virtual reality software (Unity 3D 5.5.1) was imported. Combined with the virtual reality head mounted display, a virtual reality training system simulating the dental implant treatment process was independently developed. Ten refresher doctors and 20 graduate students in Department of Implantology, School and Hospital of Stomatology, Fujian Medical University from September 2018 to December 2019 were recruited as the experimental objects (no clinical experience was found). According to the level and seniority of doctors, they were randomly divided into virtual training group and conventional training control group, which made the two groups comparable, with 15 in each group. Subjective scores (including anatomical structure, surgical field of vision, cavity preparation, implant placement and process mastery) were given after the corresponding training in the two groups, and the virtual reality training system was used to test. The mesial and distal direction, buccolingual direction, depth and angle deviation of implants before and after the training were analyzed, and the differences between the two groups were compared. Results: The subjective scores of five dimensions in the virtual training group were significantly higher than those in the conventional training control group (P<0.05). In the virtual training group, the mesial and distal, buccolingual, depth and angle deviation of implants were (0.73±0.33), (0.78±0.41), (0.61±0.32) mm and 6.66°±3.87°. All of them were significantly lower than those in the control group [(0.85±0.32), (1.12±0.38), (0.89±0.24) mm and 9.68°±3.74°] (P<0.05). Conclusions: The self-developed virtual reality system of oral implant has good application effect, good operability and predictability. It can be effectively carried out in implant education and training, and it can strengthen skills of doctors, and is conducive to the practical operation.
Collapse
Affiliation(s)
- Y Zhou
- Department of Implantology, School and Hospital of Stomatology, Fujian Medical University & Fujian Key Laboratory of Oral Diseases & Fujian Provincial Engineering Research Center of Oral Biomaterial & Stomatological Key Laboratory of Fujian College and University & Institute of Stomatology, Fujian Medical University & Research Center of Dental and Craniofacial Implants, Fujian Medical University, Fuzhou 350002, China
| | - S H Zhang
- Department of Implantology, School and Hospital of Stomatology, Fujian Medical University & Fujian Key Laboratory of Oral Diseases & Fujian Provincial Engineering Research Center of Oral Biomaterial & Stomatological Key Laboratory of Fujian College and University & Institute of Stomatology, Fujian Medical University & Research Center of Dental and Craniofacial Implants, Fujian Medical University, Fuzhou 350002, China
| | - X X Zhao
- School of Stomatology, Fujian Medical University, Fuzhou 350004, China
| | - W L Chen
- Department of Implantology, School and Hospital of Stomatology, Fujian Medical University & Fujian Key Laboratory of Oral Diseases & Fujian Provincial Engineering Research Center of Oral Biomaterial & Stomatological Key Laboratory of Fujian College and University & Institute of Stomatology, Fujian Medical University & Research Center of Dental and Craniofacial Implants, Fujian Medical University, Fuzhou 350002, China
| | - Q Lei
- Department of Implantology, School and Hospital of Stomatology, Fujian Medical University & Fujian Key Laboratory of Oral Diseases & Fujian Provincial Engineering Research Center of Oral Biomaterial & Stomatological Key Laboratory of Fujian College and University & Institute of Stomatology, Fujian Medical University & Research Center of Dental and Craniofacial Implants, Fujian Medical University, Fuzhou 350002, China
| | - B W He
- School of Mechanical Engineering and Automation, Fuzhou University, Fuzhou 350108, China
| | - W X Huang
- Department of Implantology, School and Hospital of Stomatology, Fujian Medical University & Fujian Key Laboratory of Oral Diseases & Fujian Provincial Engineering Research Center of Oral Biomaterial & Stomatological Key Laboratory of Fujian College and University & Institute of Stomatology, Fujian Medical University & Research Center of Dental and Craniofacial Implants, Fujian Medical University, Fuzhou 350002, China
| | - D Wu
- Department of Implantology, School and Hospital of Stomatology, Fujian Medical University & Fujian Key Laboratory of Oral Diseases & Fujian Provincial Engineering Research Center of Oral Biomaterial & Stomatological Key Laboratory of Fujian College and University & Institute of Stomatology, Fujian Medical University & Research Center of Dental and Craniofacial Implants, Fujian Medical University, Fuzhou 350002, China
| | - J Chen
- Department of Implantology, School and Hospital of Stomatology, Fujian Medical University & Fujian Key Laboratory of Oral Diseases & Fujian Provincial Engineering Research Center of Oral Biomaterial & Stomatological Key Laboratory of Fujian College and University & Institute of Stomatology, Fujian Medical University & Research Center of Dental and Craniofacial Implants, Fujian Medical University, Fuzhou 350002, China
| |
Collapse
|
32
|
Zhang SH, Chen Z. Response to "The pattern of drug delivery really matters". Brain Behav Immun 2021; 96:305-306. [PMID: 33989744 DOI: 10.1016/j.bbi.2021.05.006] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/05/2021] [Accepted: 05/09/2021] [Indexed: 11/26/2022] Open
Affiliation(s)
- Shi-Hong Zhang
- Department of Pharmacology and Department of Anesthesiology of the Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310058, China
| | - Zhong Chen
- College of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou 310053, China.
| |
Collapse
|
33
|
Wang S, Liang H, Wei Y, Zhang P, Dang Y, Li G, Zhang SH. Alternative Splicing of MoPTEN Is Important for Growth and Pathogenesis in Magnaporthe oryzae. Front Microbiol 2021; 12:715773. [PMID: 34335554 PMCID: PMC8322540 DOI: 10.3389/fmicb.2021.715773] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [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: 05/27/2021] [Accepted: 06/24/2021] [Indexed: 12/02/2022] Open
Abstract
Human PTEN, a dual-phosphatase tumor suppressor, is frequently dysregulated by alternative splicing. Fungi harbor PTEN homologs, but alternative splicing of fungal PTENs has not been reported as far as we know. Here, we described an alternative splicing case in the PTEN homolog of Magnaporthe oryzae (MoPTEN). Two splice variants of MoPTEN were detected and identified, which are resulted from an intron retention and exclusion (MoPTEN-1/2). Both proteins were different in lipid and protein phosphatase activity and in expression patterns. The MoPTEN deletion mutant (ΔMoPTEN) showed the defects in conidiation, appressorium formation, and pathogenesis. ΔMoPTEN could be completely restored by MoPTEN, but rescued partially by MoPTEN-1 in the defect of conidium and appressorium formation, and by MoPTEN-2 in the defect of invasive development. Assays to assess sensitivity to oxidative stress reveal the involvement of MoPTEN-2 in scavenging exogenous and host-derived H2O2. Taken together, MoPTEN undergoes alternative splicing, and both variants cooperatively contribute to conidium and appressorium development, and invasive hyphae growth in plant cells, revealing a novel disease development pathway in M. oryzae.
Collapse
Affiliation(s)
- Shaowei Wang
- College of Plant Sciences, Jilin University, Changchun, China
| | - Hao Liang
- College of Plant Sciences, Jilin University, Changchun, China
| | - Yi Wei
- College of Plant Sciences, Jilin University, Changchun, China.,Center for Extreme-Environmental Microorganisms, Shenyang Agricultural University, Shenyang, China.,College of Plant Protection, Shenyang Agricultural University, Shenyang, China
| | - Penghui Zhang
- College of Plant Sciences, Jilin University, Changchun, China
| | - Yuejia Dang
- Center for Extreme-Environmental Microorganisms, Shenyang Agricultural University, Shenyang, China.,College of Plant Protection, Shenyang Agricultural University, Shenyang, China
| | - Guihua Li
- College of Plant Sciences, Jilin University, Changchun, China
| | - Shi-Hong Zhang
- College of Plant Sciences, Jilin University, Changchun, China.,Center for Extreme-Environmental Microorganisms, Shenyang Agricultural University, Shenyang, China.,College of Plant Protection, Shenyang Agricultural University, Shenyang, China
| |
Collapse
|
34
|
Wen F, Zhang SH, Zhang C, Wang J. [Myeloid sarcoma of the paranasal sinuses involving the orbit: a case report]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2021; 56:655-657. [PMID: 34256493 DOI: 10.3760/cma.j.cn115330-20200714-00588] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- F Wen
- Department of Otorhinolaryngology Head and Neck Surgery, Peking University First Hospital, Beijing 100034, China
| | - S H Zhang
- Department of Otorhinolaryngology Head and Neck Surgery, Civil Aviation General Hospital, Beijing 100123, China
| | - C Zhang
- Department of Otorhinolaryngology Head and Neck Surgery, Peking University First Hospital, Beijing 100034, China
| | - J Wang
- Department of Otorhinolaryngology Head and Neck Surgery, Peking University First Hospital, Beijing 100034, China
| |
Collapse
|
35
|
Yuan YQ, Liu Y, Wang MJ, Hou X, Zhang SH, Wang XL, Han YN, Sang P, Bian Y, Roswal G. Prevalence of overweight and obesity in children and adolescents with intellectual disabilities in China. J Intellect Disabil Res 2021; 65:655-665. [PMID: 33851750 DOI: 10.1111/jir.12840] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Revised: 03/04/2021] [Accepted: 03/22/2021] [Indexed: 06/12/2023]
Abstract
BACKGROUND Overweight and obesity in children and adolescents has become a worldwide epidemic. There are several studies that have concentrated on the prevalence rate of children and adolescents with intellectual disabilities (ID), whereas data on such a population on the mainland of China remain unclear. The purpose of this study was to investigate the prevalence rate of overweight and obesity among school-aged children and adolescents with ID on China's mainland. METHODS This study employed a cross-sectional design to examine the body weight status of 1873 children and adolescents (ages 6-18 years old) with ID in 35 special education schools. Body mass index was calculated, and the concepts of overweight and obesity were defined according to the standard of the Working Group for Obesity in China. RESULTS Data indicated that 18.2% (95% CI: 16.5%-20.0%) of children and adolescents with ID were overweight and 14.4% (95% CI: 12.8%-16.0%) were obese. Boys with ID were more likely to be overweight than girls with ID (OR = 1.48[95% CI: 1.13-1.94], P < 0.05). Children and adolescents with Down syndrome or autism spectrum disorder had a trend to be classified as overweight (OR = 1.76[95% CI: 1.22-2.54], P < 0.05; OR = 1.57[95% CI: 1.17-2.09], P < 0.05, respectively) or obesity (OR = 1.82[95% CI: 1.23-2.69], P < 0.05; OR = 1.40 [95% CI: 1.02-1.93], P < 0.05, respectively) compared with those with ID without these conditions. Moreover, children and teenagers with ID living in urban areas had a predisposition to be overweight (OR = 2.16[95% CI: 1.14-4.09], P < 0.05) or obese (OR = 3.25[95% CI: 1.41-7.50], P < 0.05) relative to those who lived in rural areas. CONCLUSION Results indicated that in China, the prevalence rate of overweight and obesity among school-aged children and adolescents with ID was remarkably high. Therefore, future research should make every effort to focus on reducing and preventing overweight and obesity of this population in China.
Collapse
Affiliation(s)
- Y Q Yuan
- College of Sports and Health, Shandong Sport University, Jinan, China
| | - Y Liu
- Department of Physical Education, Shandong Jianzhu University, Jinan, China
| | - M J Wang
- School of Chinese WuShu, Shandong Sport University, Rizhao, China
| | - X Hou
- Department of Sports Science and Physical Education, Tsinghua University, Beijing, China
| | - S H Zhang
- Department of Physical Education, China Disabled Persons' Federation, Beijing, China
| | - X L Wang
- Graduate School, Harbin Sport University, Harbin, China
| | - Y N Han
- Beijing Xuanwu District Special Education School, Beijing, China
| | - P Sang
- Shaanxi Xi'an Special Education School, Xi'an, China
| | - Y Bian
- Tianjin Hebei District Special Education School, Tianjin, China
| | - G Roswal
- School of Health Professions and Wellness, Jacksonville State University, Jacksonville, AL, USA
| |
Collapse
|
36
|
Xia RC, Zhang XC, Wang XX, Yang Q, Chen C, Yu H, Qu YL, Wang ZW, Shi Y, Xiang P, Zhang SH, Li CT. Identification of Cannabis Sativa L. Based on rbcL Sequence. Fa Yi Xue Za Zhi 2021; 37:187-191. [PMID: 34142479 DOI: 10.12116/j.issn.1004-5619.2020.501004] [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] [Received: 10/16/2020] [Indexed: 11/30/2022]
Abstract
Abstract Objective To assess the feasibility of the rbcL sequence of chloroplast DNA as a genetic marker to identify Cannabis sativa L. Methods The rbcL sequences in 62 Cannabis sativa L. samples, 10 Humulus lupulus samples and 10 Humulus scandens DNA samples were detected, and 96 rbcL sequences of the Cannabaceae family were downloaded from Genbank. Sequence alignment was performed by MEGA X software, the intraspecific and interspecific Kimura-2-Parameter (K2P) genetic distances were calculated, and the system clustering tree was constructed. Results The rbcL sequence length acquired by sequencing of Cannabis sativa L. and Humulus scandens were 617 bp and 649 bp, respectively, and two haplotypes of Cannabis sativa L. were observed in the samples. The BLAST similarity search results showed that the highest similarity between the sequences acquired by sequencing and Cannabis sativa L. rbcL sequences available from Genbank was 100%. The genetic distance analysis showed that the maximum intraspecific genetic distance (0.004 9) of Cannabis sativa L. was less than the minimum interspecific genetic distance (0.012 9). The results of median-joining network and system clustering tree analysis showed that Cannabis sativa L. and other members of the Cannabaceae family were located in different branches. Conclusion The rbcL sequence could be used as a DNA barcode for identifying Cannabis sativa L., and combined with comparative analysis of the rbcL sequence and system cluster analysis could be a reliable and effective detection method for Cannabis sativa L. identification in forensic investigation.
Collapse
Affiliation(s)
- R C Xia
- Department of Forensic Medicine, School of Basic Medical Sciences, Wenzhou Medical University, Wenzhou 325235, Zhejiang Province, China.,Shanghai Key Laboratory of Forensic Medicine, Key Laboratory of Forensic Science, Ministry of Justice, Shanghai Forensic Service Platform, Academy of Forensic Science, Shanghai 200063, China
| | - X C Zhang
- Shanghai Key Laboratory of Forensic Medicine, Key Laboratory of Forensic Science, Ministry of Justice, Shanghai Forensic Service Platform, Academy of Forensic Science, Shanghai 200063, China.,Department of Forensic Medicine, Medical College of Soochow University, Suzhou 215123, Jiangsu Province, China
| | - X X Wang
- Shanghai Key Laboratory of Forensic Medicine, Key Laboratory of Forensic Science, Ministry of Justice, Shanghai Forensic Service Platform, Academy of Forensic Science, Shanghai 200063, China.,School of Forensic Medicine, Shanxi Medical University, Taiyuan 030001, China
| | - Q Yang
- Shanghai Key Laboratory of Forensic Medicine, Key Laboratory of Forensic Science, Ministry of Justice, Shanghai Forensic Service Platform, Academy of Forensic Science, Shanghai 200063, China.,Department of Forensic Medicine, Medical College of Soochow University, Suzhou 215123, Jiangsu Province, China
| | - C Chen
- Shanghai Key Laboratory of Forensic Medicine, Key Laboratory of Forensic Science, Ministry of Justice, Shanghai Forensic Service Platform, Academy of Forensic Science, Shanghai 200063, China.,School of Forensic Medicine, Xi'an Jiaotong University Health Science Center, Xi'an 710061, China
| | - H Yu
- Shanghai Key Laboratory of Forensic Medicine, Key Laboratory of Forensic Science, Ministry of Justice, Shanghai Forensic Service Platform, Academy of Forensic Science, Shanghai 200063, China.,Department of Forensic Medicine, Medical College of Soochow University, Suzhou 215123, Jiangsu Province, China
| | - Y L Qu
- Shanghai Key Laboratory of Forensic Medicine, Key Laboratory of Forensic Science, Ministry of Justice, Shanghai Forensic Service Platform, Academy of Forensic Science, Shanghai 200063, China.,Department of Forensic Medicine, Medical College of Soochow University, Suzhou 215123, Jiangsu Province, China
| | - Z W Wang
- Shanghai Key Laboratory of Forensic Medicine, Key Laboratory of Forensic Science, Ministry of Justice, Shanghai Forensic Service Platform, Academy of Forensic Science, Shanghai 200063, China.,Department of Forensic Medicine, Medical College of Soochow University, Suzhou 215123, Jiangsu Province, China
| | - Y Shi
- Shanghai Key Laboratory of Forensic Medicine, Key Laboratory of Forensic Science, Ministry of Justice, Shanghai Forensic Service Platform, Academy of Forensic Science, Shanghai 200063, China
| | - P Xiang
- Shanghai Key Laboratory of Forensic Medicine, Key Laboratory of Forensic Science, Ministry of Justice, Shanghai Forensic Service Platform, Academy of Forensic Science, Shanghai 200063, China
| | - S H Zhang
- Shanghai Key Laboratory of Forensic Medicine, Key Laboratory of Forensic Science, Ministry of Justice, Shanghai Forensic Service Platform, Academy of Forensic Science, Shanghai 200063, China
| | - C T Li
- Department of Forensic Medicine, School of Basic Medical Sciences, Wenzhou Medical University, Wenzhou 325235, Zhejiang Province, China.,Shanghai Key Laboratory of Forensic Medicine, Key Laboratory of Forensic Science, Ministry of Justice, Shanghai Forensic Service Platform, Academy of Forensic Science, Shanghai 200063, China
| |
Collapse
|
37
|
Du Y, Wu YX, Guo F, Qu FH, Hu TT, Tan B, Wang Y, Hu WW, Chen Z, Zhang SH. Lateral Habenula Serves as a Potential Therapeutic Target for Neuropathic Pain. Neurosci Bull 2021; 37:1339-1344. [PMID: 34086264 DOI: 10.1007/s12264-021-00728-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2020] [Accepted: 02/25/2021] [Indexed: 12/01/2022] Open
Affiliation(s)
- Yu Du
- Department of Pharmacology and Department of Anesthesiology of the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310058, China
| | - Yu-Xing Wu
- Department of Pharmacology and Department of Anesthesiology of the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310058, China
| | - Fang Guo
- Department of Pharmacology and Department of Anesthesiology of the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310058, China
| | - Feng-Hui Qu
- Department of Pharmacology and Department of Anesthesiology of the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310058, China
| | - Ting-Ting Hu
- Department of Pharmacology and Department of Anesthesiology of the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310058, China.,Key Laboratory of Neuropharmacology and Translational Medicine of Zhejiang Province, College of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou, 310053, China
| | - Bei Tan
- Key Laboratory of Neuropharmacology and Translational Medicine of Zhejiang Province, College of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou, 310053, China
| | - Yi Wang
- Key Laboratory of Neuropharmacology and Translational Medicine of Zhejiang Province, College of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou, 310053, China
| | - Wei-Wei Hu
- Department of Pharmacology and Department of Anesthesiology of the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310058, China
| | - Zhong Chen
- Key Laboratory of Neuropharmacology and Translational Medicine of Zhejiang Province, College of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou, 310053, China.
| | - Shi-Hong Zhang
- Department of Pharmacology and Department of Anesthesiology of the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310058, China.
| |
Collapse
|
38
|
Zhang SH, Wang R, Tao L, Zhang P, Zou W, Wei HY. [Application of improved comprehensive index method in risk assessment of a fiberglass yacht manufacturing enterprise]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2021; 39:151-154. [PMID: 33691375 DOI: 10.3760/cma.j.cn121094-20200221-00070] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
|
39
|
Wang S, Li G, Wei Y, Wang G, Dang Y, Zhang P, Zhang SH. Involvement of the Mitochondrial Protein Tyrosine Phosphatase PTPM1 in the Promotion of Conidiation, Development, and Pathogenicity in Colletotrichum graminicola. Front Microbiol 2021; 11:605738. [PMID: 33519752 PMCID: PMC7841309 DOI: 10.3389/fmicb.2020.605738] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2020] [Accepted: 12/21/2020] [Indexed: 12/13/2022] Open
Abstract
The phosphorylation status of proteins, which is determined by protein tyrosine kinases (PTKs) and protein tyrosine phosphatases (PTPs), governs many cellular actions. In fungal pathogens, phosphorylation-mediated signal transduction has been considered to be one of the most important mechanisms in pathogenicity. Colletotrichum graminicola is an economically important corn pathogen. However, whether phosphorylation is involved in its pathogenicity is unknown. A mitochondrial protein tyrosine phosphatase gene, designated CgPTPM1, was deduced in C. graminicola through the use of bioinformatics and confirmed by enzyme activity assays and observation of its subcellular localization. We then created a CgPTPM1 deletion mutant (ΔCgPTPM1) to analyze its biological function. The results indicated that the loss of CgPTPM1 dramatically affected the formation of conidia and the development and differentiation into appressoria. However, the colony growth and conidial morphology of the ΔCgPTPM1 strains were unaffected. Importantly, the ΔCgPTPM1 mutant strains exhibited an obvious reduction of virulence, and the delayed infected hyphae failed to expand in the host cells. In comparison with the wild-type, ΔCgPTPM1 accumulated a larger amount of H2O2 and was sensitive to exogenous H2O2. Interestingly, the host cells infected by the mutant also exhibited an increased accumulation of H2O2 around the infection sites. Since the expression of the CgHYR1, CgGST1, CgGLR1, CgGSH1 and CgPAP1 genes was upregulated with the H2O2 treatment, our results suggest that the mitochondrial protein tyrosine phosphatase PTPM1 plays an essential role in promoting the pathogenicity of C. graminicola by regulating the excessive in vivo and in vitro production of H2O2.
Collapse
Affiliation(s)
- Shaowei Wang
- College of Plant Sciences, Jilin University, Changchun, China
| | - Guihua Li
- College of Plant Sciences, Jilin University, Changchun, China
- Key Laboratory of Zoonosis Research, Ministry of Education, Jilin University, Changchun, China
| | - Yi Wei
- College of Plant Sciences, Jilin University, Changchun, China
- College of Plant Protection, Shenyang Agricultural University, Shenyang, China
| | - Gang Wang
- School of Life Sciences, Henan University, Kaifeng, China
| | - Yuejia Dang
- College of Plant Sciences, Jilin University, Changchun, China
| | - Penghui Zhang
- College of Plant Sciences, Jilin University, Changchun, China
| | - Shi-Hong Zhang
- College of Plant Sciences, Jilin University, Changchun, China
- College of Plant Protection, Shenyang Agricultural University, Shenyang, China
| |
Collapse
|
40
|
Dang Y, Wei Y, Wang Y, Liu S, Julia C, Zhang SH. Cleavage of PrePL by Lon promotes growth and pathogenesis in Magnaporthe oryzae. Environ Microbiol 2020; 23:4881-4895. [PMID: 33225564 DOI: 10.1111/1462-2920.15335] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2020] [Revised: 10/30/2020] [Accepted: 11/19/2020] [Indexed: 11/28/2022]
Abstract
ATP-dependent Lon proteases function in bacterial pathogenesis by regulating the expression of the Type III secretion system; however, little is known about how Lon proteases regulate fungal pathogenesis. We previously investigated Lon-binding proteins involved in fungal pathogenesis that interact with PrePL, the smallest Magnaporthe oryzae Lon-binding protein. Here, we show that Lon cleaves PrePL and produces Pc, an extracellular 11-kDa isoform with catalase and peroxidase activity. The ΔPrePL loss-of-function strain showed stronger sporulation and accelerated disease development, suggesting a temporally specific negative regulatory mechanism controlled by PrePL in disease progression. Neither the truncated Pc, nor the full-length PrePL missing the Lon cleavage site complemented the ΔPrePL phenotype, suggesting that full-length PrePL and Pc both function in fungal development. PrePL targeted to the mitochondria undergoes hydrolysis by Lon to produce Pc, which accumulates in the fungal apoplast. Importantly, recombinant Pc induced plant defence responses and cell death after being infiltrated into selected plant leaves, indicating that it functions as an avirulence factor. This work thus reveals a novel pathogenic factor in the fungal Lon-mediated pathway. Additionally, our results provide new insight into the functions of a full-length protein and its cleaved isoform in fungal pathogenesis.
Collapse
Affiliation(s)
- Yuejia Dang
- College of Plant Sciences, Jilin University, Changchun, 130062, China
| | - Yi Wei
- College of Plant Sciences, Jilin University, Changchun, 130062, China.,College of Plant Protection, Shenyang Agricultural University, Shenyang, 110866, China
| | - Yanyan Wang
- College of Plant Sciences, Jilin University, Changchun, 130062, China
| | - Shaoshuai Liu
- College of Plant Sciences, Jilin University, Changchun, 130062, China.,Institute of Phytopathology, Centre for BioSystems, Land Use and Nutrition, Justus Liebig University, Giessen, Heinrich Buff-Ring 26-32, D-35392, Germany
| | - Chekanova Julia
- College of Plant Protection, Shenyang Agricultural University, Shenyang, 110866, China
| | - Shi-Hong Zhang
- College of Plant Sciences, Jilin University, Changchun, 130062, China.,College of Plant Protection, Shenyang Agricultural University, Shenyang, 110866, China
| |
Collapse
|
41
|
Zhang SH, Zhang ZH, Tao L, Feng B, Wang H, Zhang HD, Zhang P. [Investigation on occupational hazards in a refrigeration equipment manufacturing enterprise]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2020; 38:708-711. [PMID: 33036541 DOI: 10.3760/cma.j.cn121094-20190716-00304] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the distribution and intensity of noise and ultraviolet radiation of welding posts in a refrigeration equipment manufacturing enterprise, in conjunction with the health status of welding workers, providing scientific evidence for the prevention and control of occupational diseases in this type of post. Methods: In May 2019, a cross-sectional survey method was used to select 576 welding workers in the pressure vessel workshop and the unit assembly workshop of a refrigeration complete equipment manufacturer from 2016 to 2018 as the research objects. The occupational hygiene survey and occupational hazard factor measurement were carried out in the workplace, and the measurement data and occupational health examination results were statistically analyzed. Results: The over standard rate of individual Lex in pressure vessel workshop was 82.2% (37/45) . Compared with the unit assembly workshop, the individual Lex of welding workers in pressure vessel workshop was higher than that in unit assembly workshop (t=13.43, P= 0.00) ; the effective irradiance exceeding rate of welding workers in pressure vessel workshop and unit assembly workshop was 33.3% (4/12) and 25.0% (3/12) , The meacurement of ovradiation in the moskment the occupational exposure limit. The deaf rate and hearing loss rate in pressure vessel workshop were 1.5% (5/336) 20.5% (69/336) , respectively, significantly higher than that in umit assembly workshop (P<0.05) . The detection rate of hearing loss of pressure vessel workshop workers increased year by year, and the difference was statistically significant (χ(2trend)=22.42, P<0.01) ; compared with the unit assembly workshop from 2016 to 2018, the detection rates of lens opacity, corneal cloudiness and hearing loss of pressure vessel workshop workers were statistically significant (χ(2)=9.45, 14.80, 55.99, P<0.01) . Conclusion: Welding workers exposed to noise and ultraviolet radiation are easy to be ignored. The enterprise management department should attach great importance to it and take comprehensive measures to protect the health of welding workers.
Collapse
Affiliation(s)
- S H Zhang
- Shandong Academy of Occupational Health and Occupational Medicine, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan 250002, China
| | - Z H Zhang
- Shandong Academy of Occupational Health and Occupational Medicine, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan 250002, China
| | - L Tao
- Shandong Academy of Occupational Health and Occupational Medicine, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan 250002, China
| | - B Feng
- Shandong Academy of Occupational Health and Occupational Medicine, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan 250002, China
| | - H Wang
- Shandong Academy of Occupational Health and Occupational Medicine, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan 250002, China
| | - H D Zhang
- Shandong Academy of Occupational Health and Occupational Medicine, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan 250002, China
| | - P Zhang
- Shandong Academy of Occupational Health and Occupational Medicine, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan 250002, China
| |
Collapse
|
42
|
Zhang SH, Tan QT, Wang X. [Determination of isobutyl methacrylate in workplace air by gas chromatography]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2020; 38:628-630. [PMID: 32892597 DOI: 10.3760/cma.j.cn121094-20200224-00079] [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 establish a gas chromatography method for detecting isobutyl methacrylate in workplace air. Methods: From July to October 2019, isobutyl methacrylate in workplace air was collected by activated charcoal tube, absorbed using carbon disulfide and analyzed by gas chromatography (FID) with FFAP capillary column. Results: The linear range of isobutyl methacrylate in the method was 0-800 μg/ml, the correlation coefficient was 0.99993. The detection limit was 0.35 μg/ml. The lowest detected concentration was 0.12 mg/m(3). The within-run precision was 2.06%-2.72%, the between-run precision was 3.03%-3.83%. The rates of desorption was 96.7%. The breakthrough volume was 14.46 mg. The average sampling efficience was 100%. The samples could be stored at room temperature for 7 days. Conclusion: The method is simple, highly sensitive and precise. Isobutyl methacrylate in workplace air could be determined accurately.
Collapse
Affiliation(s)
- S H Zhang
- Zibo Hospital for Occupational Diseases Control and Treatment, Zibo 255000, China
| | - Q T Tan
- Zibo Hospital for Occupational Diseases Control and Treatment, Zibo 255000, China
| | - X Wang
- Zibo Hospital for Occupational Diseases Control and Treatment, Zibo 255000, China
| |
Collapse
|
43
|
Dai HF, Qian SN, Wei F, Jiang ZZ, Zhang SH, Chen K, Tang ML. [Prevalence and influence factors of job burnout among hospital staffs-a cross-sectional study]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2020; 38:594-597. [PMID: 32892587 DOI: 10.3760/cma.j.cn121094-20200107-00019] [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 influencing factors of job burnout of medical staff and provide reference for the formulation of intervention measures. Methods: From November to December, 2018, a questionnaire survey was conducted among medical staff in a general hospital by using the research design of the current situation survey. A total of 1193 questionnaires were distributed and 939 questionnaires were returned, with a recovery rate of 78.7%, including 891 valid questionnaires and an effective recovery rate of 94.9%. Social support rating scale (SSRs) was used to evaluate social support, and Maslach Burnout Scale (MBI-GS) was used to evaluate job burnout. Single factor analysis was performed by chi square test and Fisher exact probability method. To explore the influencing factors of job burnout by using disordered multi classification logistic. Results: The average age was (27.47 ± 4.22) years old, female accounted for 71.5% (637/891) . The total physical examination rate of job burnout was 46.6%. The scores of emotional exhaustion, cynicism and decreased sense of achievement were (10.10±3.75) , (6.14±3.43) , (17.91±4.13) respectively. Multiple logistic regression analysis showed that, compared with the non detected job burnout, the young, working for 1-3 years, average sleep ≤6 hours, and poor social support were more likely to have mild job burnout (OR=0.91, 0.40, 2.25, 2.38, P<0.05) ; female, high night shift frequency in the past year, average sleep ≤6 h. Those with poor social support were more likely to have moderate to severe job burnout (OR=1.59, 2.94, 4.01, 2.40, 3.66, P<0.05) . Conclusion: Corresponding measures should be taken to reduce job burnout and improve work efficiency.
Collapse
Affiliation(s)
- H F Dai
- Department of Science and Education, the Fourth Affiliated Hospital, Zhejiang University School of Medicine, Jinhua 322000, China
| | - S N Qian
- Department of Epidemiology and Health Statistics, Zhejiang University School of Medicine, Hangzhou 310058, China
| | - F Wei
- Department of Epidemiology and Health Statistics, Zhejiang University School of Medicine, Hangzhou 310058, China
| | - Z Z Jiang
- Department of Science and Education, the Fourth Affiliated Hospital, Zhejiang University School of Medicine, Jinhua 322000, China
| | - S H Zhang
- Department of Science and Education, the Fourth Affiliated Hospital, Zhejiang University School of Medicine, Jinhua 322000, China
| | - K Chen
- Department of Epidemiology and Health Statistics, Zhejiang University School of Medicine, Hangzhou 310058, China
| | - M L Tang
- Department of Epidemiology and Health Statistics, Zhejiang University School of Medicine, Hangzhou 310058, China
| |
Collapse
|
44
|
Zhang P, Chen MH, Chen W, Zhang SH, Xu Y. Mechanisms and microstructures of 2A97 Al-Li alloy under the hot forming with synchronous quenching process. Microsc Res Tech 2020; 84:358-367. [PMID: 32990390 DOI: 10.1002/jemt.23593] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2020] [Revised: 08/14/2020] [Accepted: 08/28/2020] [Indexed: 11/09/2022]
Abstract
Aluminum-lithium alloy is regarded as the most promising light material in the aircraft and aerospace industries. For the production of complex and high-precision parts, the hot forming with synchronous quenching (HFSQ) process has become an effective and attractive forming method. In order to achieve the performance and microstructure evolution of the 2A97 Al-Li alloy under the HFSQ process, the specimens were subjected to solution treatment at 520°C and held at 90 min in the Gleeble 3,500 thermal simulator. Then the hot tensile test with simultaneous quenching was conducted directly at a temperature of 300-500°C and a strain rate of 0.1-0.001 s-1 with the same equipment. Through analyzing the macroscopic stress-strain curves and microscopic fractures, it was concluded that the optimal forming temperature was 450°C with the strain rate being 0.1 s-1 and its forming mechanism under the process was presented. To obtain the microstructure evolution of 2A97 Al-Li alloy under the HFSQ process, the material was subjected to constant strain tensile test with synchronous quenching and then treated with two-stage artificial aging 200°C and 6 hr + 165°C and 6 hr. The microstructure of the alloy was observed by means of electron backscattering diffraction (EBSD). And its evolution process and the influence of temperature, strain rate, and strain on the microstructure under the process were attained.
Collapse
Affiliation(s)
- Peng Zhang
- College of Mechanical & Electrical Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, China
| | - Ming-He Chen
- College of Mechanical & Electrical Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, China
| | - Wei Chen
- College of Mechanical & Electrical Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, China.,Chinalco Materials Application Research Institute Co., Ltd., Suzhou Branch, Suzhou, China
| | - Shi-Hong Zhang
- Institute of Metal Research, Chinese Academy of Science, Shenyang, China
| | - Yong Xu
- Institute of Metal Research, Chinese Academy of Science, Shenyang, China
| |
Collapse
|
45
|
Zhang SH, Wang P, Yang BR, Zhong YY, Wang YF. [Characteristics of executive function in children with attention deficit/hyperactivity disorder comorbid with high functioning autism]. Zhonghua Yi Xue Za Zhi 2020; 100:2446-2451. [PMID: 32819061 DOI: 10.3760/cma.j.cn112137-20191216-02750] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [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 characteristics of executive function in children with attention-deficit/hyperactivity disorder comorbid with high functioning autism. Methods: A total of 165 children with attention-deficit/hyperactivity disorder (ADHD group), 65 children with attention-deficit/Hyperactivity disorder comorbid with high functioning autism (ADHD-HFA group), and 84 healthy controls (control group) (based on the criteria of DSM-5) were recruited from the Outpatient Clinic of Child Healthcare Department of Shen Zhen Children's Hospital. The Rey complex figure test (RCFT), trail making test (TMT), Stroop color-word test were used to assess working memory, shifting and inhibition. Results: ADHD group (2.1±1.9, 7±5, 2.1±2.0 and 7±5) and ADHD-HFA group (2.0±2.0, 7±6, 2.0±2.1 and 6±5) performed worse than control group (3.4±2.0, 10±5, 3.4±2.0 and 10±6) in Rey complex figure test (all P<0.05). ADHD group ((171±8) s, (27.40±0.82) s and (52.29±1.62) s) and ADHD-HFA group ((197±11) s, (29.7±1.1) s and (58.6±2.1) s) group took longer time on the TMT-2, Stroop2 and Stroop4 test than control group ((135±18) s, (22.4±1.9) s and (38.7±3.8) s) (all P<0.05). In children with low intelligence quotient (IQ), ADHD group ((30±8) s) and ADHD-HFA group ((34±9) s) performed worse on Stroop3 test than control group ((20±4) s) (all P<0.05). In children with average IQ, ADHD group ((19±5) s and (24±8) s) took longer time on the Stroop1 and Stroop3 test than control group ((16±3) s and (19±4) s) (all P<0.05). In children with high IQ, ADHD-HFA group ((20±8) s) spent more time on Stroop1 than control group ((15±4) s) (P<0.05). Inattention symptoms were associated with the time on TMT-2 of ADHD-HFA group (r=0.275 and 0.329, all P<0.05). The score of item 1 in autism spectrum screening questionnaire (ASSQ) was negatively correlated with immediate recall structure and detail scores as well as delay structure scores of Rey complex figure test (r=-0.358, -0.326 and -0.306, all P<0.05). The score of item 4 was positively correlated with errors of Stroop4 (r=0.296, P<0.05). The score of item 22 was positively correlated with time of color interference (r=0.279, P<0.05). Conclusions: Children with ADHD-HFA are likely to demonstrate the spatial working memory, shifting and inhibition deficits associated with ADHD alone. Some domains of executive function impairment in ADHD-HFA group are related with symptoms of inattention/hyperactivity and autism.
Collapse
Affiliation(s)
- S H Zhang
- Department of Child healthcare, Shenzhen Children's Hospital, Shenzhen 518038, China
| | - P Wang
- Department of Child Psychiatry, Peking University Sixth Hospital, Peking University Institute of Mental Health, Key Laboratory of Mental Health, Ministry of Health (Peking University), National Clinical Research Center for Mental Disorders (Peking University Sixth Hospital), Beijing 100191, China
| | - B R Yang
- Department of Child healthcare, Shenzhen Children's Hospital, Shenzhen 518038, China
| | - Y Y Zhong
- Department of Child healthcare, Shenzhen Children's Hospital, Shenzhen 518038, China
| | - Y F Wang
- Department of Child Psychiatry, Peking University Sixth Hospital, Peking University Institute of Mental Health, Key Laboratory of Mental Health, Ministry of Health (Peking University), National Clinical Research Center for Mental Disorders (Peking University Sixth Hospital), Beijing 100191, China
| |
Collapse
|
46
|
Hu TT, Yu J, Liu K, Du Y, Qu FH, Guo F, Yu LN, Nishibori M, Chen Z, Zhang SH. A crucial role of HMGB1 in orofacial and widespread pain sensitization following partial infraorbital nerve transection. Brain Behav Immun 2020; 88:114-124. [PMID: 32389703 DOI: 10.1016/j.bbi.2020.05.020] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/03/2020] [Revised: 04/24/2020] [Accepted: 05/06/2020] [Indexed: 12/11/2022] Open
Affiliation(s)
- Ting-Ting Hu
- Department of Pharmacology and Department of Anesthesiology of the Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310058, China; College of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou 310053, China; Institute of Pharmacology and Toxicology, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, China
| | - Jie Yu
- College of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou 310053, China
| | - Keyue Liu
- Department of Pharmacology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - Yu Du
- Department of Pharmacology and Department of Anesthesiology of the Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310058, China
| | - Feng-Hui Qu
- Department of Pharmacology and Department of Anesthesiology of the Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310058, China
| | - Fang Guo
- Department of Pharmacology and Department of Anesthesiology of the Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310058, China
| | - Li-Na Yu
- Department of Pharmacology and Department of Anesthesiology of the Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310058, China
| | - Masahiro Nishibori
- Department of Pharmacology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - Zhong Chen
- College of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou 310053, China; Institute of Pharmacology and Toxicology, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, China.
| | - Shi-Hong Zhang
- Department of Pharmacology and Department of Anesthesiology of the Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310058, China.
| |
Collapse
|
47
|
Xu S, Zu XM, Feng R, Zhang SH, Qiu Y, Chen BL, Zeng ZR, Chen MH, He Y. [Thalidomide in refractory Crohn's disease: long-term efficacy and safety]. Zhonghua Nei Ke Za Zhi 2020; 59:445-450. [PMID: 32486585 DOI: 10.3760/cma.j.cn112138-20191206-00800] [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] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Objective: To analyze the long-term efficacy and safety of thalidomide on refractory Crohn's disease (CD). Methods: A total of 79 patients with refractory CD in the First Affiliated Hospital of Sun Yat-sen University treated with thalidomide were enrolled in this retrospective study from September 2005 to July 2018. Clinical effects and adverse drug reactions were recorded and assessed. Results: In this cohort,69 patients were treated with thalidomide for ≥6 months. Sixty-eight patients among the 69 patients achieved complete clinical remission and were followed up for a median 33.5 months (range, 7-110 months). Seventeen cases relapsed during follow-up. The cumulative probabilities of remaining in remission at 12, 24, 60 months were 88.6% (95%CI 80.6%-96.6%), 80.7% (95%CI 70.3%-91.1%), 53.7% (95%CI 32.1%-75.3%) respectively. Disease activity was the only variable associated with relapse risk, with a hazard ratio (HR) of 3.559 for Crohn's disease activity index (CDAI) ≥220(95%CI 1.213-10.449, P<0.05). Adverse reactions were recorded in 42 (53.2%) patients including12 (15.2%) leading to discontinuation of thalidomide. No serious side effects were observed in all subjects. Conclusions: This study suggests a long-term benefit of maintenance treatment with thalidomide in refractory CD.Moderate to severe patients have an increased risk of relapse. The high incidence of drug adverse reactions may restrain the clinical application of thalidomide.
Collapse
Affiliation(s)
- S Xu
- Department of Gastroenterology, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, China
| | - X M Zu
- Department of Gastroenterology, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, China
| | - R Feng
- Department of Gastroenterology, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, China
| | - S H Zhang
- Department of Gastroenterology, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, China
| | - Y Qiu
- Department of Gastroenterology, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, China
| | - B L Chen
- Department of Gastroenterology, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, China
| | - Z R Zeng
- Department of Gastroenterology, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, China
| | - M H Chen
- Department of Gastroenterology, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, China
| | - Y He
- Department of Gastroenterology, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, China
| |
Collapse
|
48
|
Legut D, Diviš M, Doležal P, Zhang SH, Javorský P. Ab initio calculations of the crystal field and phonon dispersions in CePd 2Al 2 and LaPd 2Al 2. J Phys Condens Matter 2020; 32:235402. [PMID: 31986499 DOI: 10.1088/1361-648x/ab7031] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
CePd2Al2 crystallizes in the CaBe2Ge2-type tetragonal structure (P4/nmm, 129) and undergoes a phase transition to the orthorhombic Cmme structure at around 13 K. Its inelastic neutron spectra reveal an additional magnetic excitation that was ascribed to electron-phonon interaction leading to a formation of a new quantum quasi-bound vibron state. We present the first-principles calculations of the crystal field excitations and lattice dynamics calculations of the phonon dispersions to compare with the experimental data. The calculated crystal field energy splitting in CePd2Al2 agrees well with the model used to describe the experimental neutron scattering spectra. The first excited crystal field level moves to higher energies when undergoing the transformation from tetragonal to orthorhombic structure, in agreement with the experiment. The analysis based on calculated elastic constants and lattice dynamics calculations show that in both tetragonal and orthorhombic structures there are no imaginary modes for any q-wave vector within the Brillouin zone, and therefore the lattice structures are stable. The phonon dispersions and density of states are calculated for both crystal structures of CePd2Al2 and its nonmagnetic counterpart LaPd2Al2. The results generally agree well with the experimental data including the high phonon density of states around 12 meV. The phonon density of states is also used to calculate the mean squared displacement, Debye temperature, lattice heat capacity and compared with similar properties of the available experiment.
Collapse
Affiliation(s)
- D Legut
- IT4Innovations, VSB-Technical University of Ostrava, 17. listopadu 2172/15, 708 00 Ostrava, Czech Republic. Nanotechnology Centre, VSB-Technical University of Ostrava, 17. listopadu 2172/15, 708 00 Ostrava, Czech Republic
| | | | | | | | | |
Collapse
|
49
|
Zhu JZ, Zhao TT, Chen YY, Zhang R, Wang JK, Zhang SH, Liu KC. Liver failure promotes gastrointestinal dysfunction by changing cholinergic and nitrergic nerves and Cajal interstitial cells in gastric antrum. J BIOL REG HOMEOS AG 2020; 33:1803-1809. [PMID: 31989809 DOI: 10.23812/19-243-l] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- J Z Zhu
- Department of Hepatal-Gastroenterology, Meng chao Hepato-biliary Hospital of Fujian Medical University, Fuzhou, China
| | - T T Zhao
- Institute for Laboratory Medicine, 900 Hospital of the Joint Logistics Team, Dongfang Hospital, Fuzhou, Fujian, China.,School of Medicine, Xiamen University, Xiamen, Fujian, China
| | - Y Y Chen
- Institute for Laboratory Medicine, 900 Hospital of the Joint Logistics Team, Dongfang Hospital, Fuzhou, Fujian, China.,School of Medicine, Xiamen University, Xiamen, Fujian, China
| | - R Zhang
- Institute for Laboratory Medicine, 900 Hospital of the Joint Logistics Team, Dongfang Hospital, Fuzhou, Fujian, China
| | - J K Wang
- School of Life Science, Xiamen University, Xiamen, Fujian, China
| | - S H Zhang
- School of Life Sciences, Central South University, Changsha, Hunan, China.,School of Life Sciences, University of Dundee, Nethergate, Dundee, Scotland, UK
| | - K C Liu
- Institute for Laboratory Medicine, 900 Hospital of the Joint Logistics Team, Dongfang Hospital, Fuzhou, Fujian, China.,School of Medicine, Xiamen University, Xiamen, Fujian, China
| |
Collapse
|
50
|
Liu S, Wei Y, Zhang SH. The C3HC type zinc-finger protein (ZFC3) interacting with Lon/MAP1 is important for mitochondrial gene regulation, infection hypha development and longevity of Magnaporthe oryzae. BMC Microbiol 2020; 20:23. [PMID: 32000669 PMCID: PMC6993355 DOI: 10.1186/s12866-020-1711-4] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [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: 09/03/2019] [Accepted: 01/22/2020] [Indexed: 12/20/2022] Open
Abstract
Background The rice blast is a typical fungal disease caused by Magnaporthe oryzae, and the mitochondrial ATP-dependent Lon protease (MAP1) has been proven to be involved in blast development. We previously screened a C3HC type Zinc-finger domain protein (ZFC3), which is interacted with MAP1. The purpose of this research was to study the biological function of ZFC3 protein in M. oryzae. Results We first confirmed that the ZFC3-RFP fusion protein is localized within the mitochondria. The deleted mutant strains of ZFC3 (∆ZFC3) showed the enhanced expression level of mtATP6, particularly mtATP8, and almost unchanged nATP9. ΔZFC3 produces more conidia and more tolerance to multiple stressors. The knock-out strain shows more melanin accumulation suggests the susceptibility to aging. ΔZFC3 displays faster early-stage hypha infiltration involved in MAP1-mediated pathogenicity in host rice. Conclusion These results support the view that ZFC3 is a key regulator involved in gene regulation, stress response, cell wall integrity, longevity, conidiation, infection hypha development and MAP1-mediated pathogenicity in M. oryzae.
Collapse
Affiliation(s)
- Shaoshuai Liu
- College of Plant Sciences, Jilin University, Changchun, China.,Present address: Institute of Phytopathology, Centre for BioSystems, Land Use and Nutrition, Justus Liebig University, Heinrich Buff-Ring 26-32, D-35392, Giessen, Germany
| | - Yi Wei
- College of Plant Sciences, Jilin University, Changchun, China
| | - Shi-Hong Zhang
- College of Plant Sciences, Jilin University, Changchun, China.
| |
Collapse
|