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Zhang JX, Zhou KG, Yin YX, Jin LJ, Tong WF, Guo J, Yu LH, Ye XC, Jiang M. Mesencephalic astrocyte-derived neurotrophic factor (MANF) prevents the neuroinflammation induced dopaminergic neurodegeneration. Exp Gerontol 2023; 171:112037. [PMID: 36436758 DOI: 10.1016/j.exger.2022.112037] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [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: 03/03/2022] [Revised: 11/14/2022] [Accepted: 11/21/2022] [Indexed: 11/27/2022]
Abstract
BACKGROUND The excessive activation of the microglia leads to the release of inflammatory factors that contribute to neuronal cell loss and neurodegeneration in Parkinson's Disease (PD). Mesencephalic astrocyte-derived neurotrophic factor (MANF) that belongs to a newly found neurotrophic factors (NTFs) family has been reported to promote neuronal survival in the PD models. However, the effects of the MANF on neuroinflammation in PD remain unclear. METHODS AAV8-MANF virus was constructed to determine whether the high expression of MANF can protect the neuroinflammation-induced dopaminergic neurodegeneration in rats with 6-OHDA-induced PD. Rotarod performance test, immunofluorescent staining and western bolt were employed to evaluate the behavioral dysfunction, dopaminergic neurodegeneration, microglia activation, and signal activation. 6-OHDA treated SH-SY5Y cells and LPS treated BV-2 cells were used as the in vitro model for MANF neuroprotective and neuroinflammation mechanisms. Cell vitality and apoptosis were evaluated with MTT, CCK-8 and flow cytometric analysis. The AKT/GSK3β-Nrf2 signaling and the TNF-α/IL6 expression were measured by Western Blot. RESULTS Our findings indicated that the elevated MANF expression by the AAV8-MANF administration ameliorated the motor dysfunction and protected the dopaminergic neurons in the 6-OHDA treated rats. The upregulated CD11b in the rat SN caused by the 6-OHDA administration was significantly attenuated by the pretreatment of the AAV8-MANF. Furthermore, the levels of p-AKT, p-GSK3β, BCL-2, and Nrf-2 were upregulated by the high expression of the MANF. Under the oxidative stress of the 6-OHDA, the MANF significantly reduced the apoptotic effect of the TNF-α on the SH-SY5Y cells. In the LPS treated BV-2 cells, the MANF reduced the production of the TNF-α and IL-6, via enhancing the Nrf-2, p-Akt, p-GSK3β, and p-NF-κβ level. CONCLUSIONS These results suggested that the MANF prevented the dopaminergic neurodegeneration caused by the microglia activation in PD via activation of the AKT/GSK3β-Nrf-2 signaling axis.
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Affiliation(s)
- Jing-Xing Zhang
- Department of Neurology, Tongji Hospital, School of Medicine, Tongji University, Shanghai 200092, China
| | - Kai-Ge Zhou
- Department of Neurology, Tongji Hospital, School of Medicine, Tongji University, Shanghai 200092, China
| | - Yan-Xin Yin
- Department of Neurology, Tongji Hospital, School of Medicine, Tongji University, Shanghai 200092, China; Biomedical Research Center, Tongji University Suzhou Institute, Building 2198 Jinfeng Road, Wuzhong District, Suzhou, Jiangsu 215101, China; School of Life Science and Technology, Tongji University, 1239 Siping Road, Shanghai 200092, China
| | - Ling-Jing Jin
- Department of Neurology, Tongji Hospital, School of Medicine, Tongji University, Shanghai 200092, China; Department of Neurology and Neurological Rehabilitation, Shanghai Yangzhi Rehabilitation Hospital, School of Medicine, Tongji University, Shanghai 200092, China; Shanghai Clinical Research Center for Aging and Medicine, Shanghai 200040, China
| | - Wei-Fang Tong
- Department of Neurology, Tongji Hospital, School of Medicine, Tongji University, Shanghai 200092, China
| | - Jia Guo
- Department of Neurology, Tongji Hospital, School of Medicine, Tongji University, Shanghai 200092, China; Biomedical Research Center, Tongji University Suzhou Institute, Building 2198 Jinfeng Road, Wuzhong District, Suzhou, Jiangsu 215101, China
| | - Li-Hua Yu
- Department of Neurology, Tongji Hospital, School of Medicine, Tongji University, Shanghai 200092, China; Biomedical Research Center, Tongji University Suzhou Institute, Building 2198 Jinfeng Road, Wuzhong District, Suzhou, Jiangsu 215101, China
| | - Xian-Cheng Ye
- Department of Pharmacy, Tongji Hospital, Tongji University School of Medicine, Shanghai 200065, China.
| | - Ming Jiang
- Department of Neurology, Tongji Hospital, School of Medicine, Tongji University, Shanghai 200092, China; Biomedical Research Center, Tongji University Suzhou Institute, Building 2198 Jinfeng Road, Wuzhong District, Suzhou, Jiangsu 215101, China.
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Song YT, Liang RR, Wang C, Ye XC, Zeng JS, Zhang YJ. Application Exploration of Participation Rules in Environmental Damage Identification. Fa Yi Xue Za Zhi 2020; 36:483-486. [PMID: 33047529 DOI: 10.12116/j.issn.1004-5619.2020.04.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Received: 03/23/2020] [Indexed: 11/30/2022]
Abstract
Abstract
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Affiliation(s)
- Y T Song
- Fujian LISI Judicial Expertise Firm, Xiamen 361000, Fujian Province, China
| | - R R Liang
- Fujian Xiamen Envionmental Monitoring Central Station, Xiamen 361000, Fujian Province, China
| | - C Wang
- Xiamen Intermediate People's Court, Xiamen 361000, Fujian Province, China
| | - X C Ye
- Quanzhou Jinjiang Municipal Bureau of Ecology and Environment, Quanzhou 362000, Fujian Province, China
| | - J S Zeng
- Fujian LISI Judicial Expertise Firm, Xiamen 361000, Fujian Province, China
| | - Y J Zhang
- Beijing Dentons Law Offices, LLP (Xiamen), Xiamen 361000, Fujian Province, China
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Kong Y, Xu K, Ye XC, Han CP, Li MS, Chen ZD. [Preliminary observation on the changes of T(1) weighted signal of globus pallidus after multiple intravenous injection of linear gadolinium contrast agent]. Zhonghua Yi Xue Za Zhi 2019; 99:1468-1472. [PMID: 31137136 DOI: 10.3760/cma.j.issn.0376-2491.2019.19.007] [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 changes in signal intensity (SI) ratios of globus pallidus (GP) on unenhanced T(1)-weighted(T(1)WI)magnetic resonance imaging (MRI) scans between the first and last MRI using the linear gadolinium-based contrast agent (GBCAs) intravenously. Methods: Clinical and imaging data of 114 patients who underwent at least 4 consecutive enhanced MRI examinations at the Affiliated Hospital of Xuzhou Medical University between January 2016 and April 2018 were analyzed. The SI ratio of GP, thalamus and cerebrospinal fluid (CSF) were measured on unenhanced T(1)WI. The GP to thalamus SI ratio was calculated by dividing the SI in the GP by that in the thalamus, and so was the GP to CSF SI ratio. The difference of SI ratio in the same patient was analyzed by nonparametric tests, linear regression analysis was used to analyze clinical factors. Results: The SI ratio of GP-to-thalamus and GP-to-CSF after multiple enhancement were higher than before, and the difference was statistically significant. The SI ratio of GP-to-thalamus and GP-to-CSF before and after repeated contrast-enhanced were 1.036(1.010, 1.075), 1.104(1.074, 1.168); 4.215(3.590, 5.614), 5.409(4.213, 6.502), all P<0.01. The SI ratio differences showed a significant positive correlation with the number of enhanced examination(pons:b=0.023, P<0.01,CSF:b=0.279,P=0.034), and a significant negative correlation with the interval (pons: b=-0.002,P< 0.01, CSF: b=-0.023, P=0.039). There was no correlation with other clinical factors (all P>0.05). Conclusions: There is an increase in SI in the GP after serial injections of linear GBCAs, and there is a positive correlation with the times of enhanced examination, and a negative correlation with time interval.
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Affiliation(s)
- Y Kong
- Department of Radiology, the Affiliated Hospital of Xuzhou Medical University, Xuzhou 221000, China
| | - K Xu
- Department of Radiology, the Affiliated Hospital of Xuzhou Medical University, Xuzhou 221000, China
| | - X C Ye
- Department of Neurology, the Affiliated Hospital of Xuzhou Medical University, Xuzhou 221000, China
| | - C P Han
- Department of Radiology, the Affiliated Hospital of Xuzhou Medical University, Xuzhou 221000, China
| | - M S Li
- Department of Radiology, the Affiliated Hospital of Xuzhou Medical University, Xuzhou 221000, China
| | - Z D Chen
- Department of Radiology, the Affiliated Hospital of Xuzhou Medical University, Xuzhou 221000, China
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Cohen ASA, Wilson SL, Trinh J, Ye XC. Detecting somatic mosaicism: considerations and clinical implications. Clin Genet 2014; 87:554-62. [PMID: 25223253 DOI: 10.1111/cge.12502] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2014] [Revised: 09/09/2014] [Accepted: 09/11/2014] [Indexed: 01/04/2023]
Abstract
Human disease is rarely a matter of all or nothing; variable expressivity is generally observed. Part of this variability is explained by somatic mosaicism, which can arise by a myriad of genetic alterations. These can take place at any stage of development, possibly leading to unusual features visible at birth, but can also occur later in life, conceivably leading to cancer. Previously, detection of somatic mosaicism was extremely challenging, as many gold standard tests lacked the necessary resolution. However, with the advances in high-throughput sequencing, mosaicism is being detected more frequently and at lower levels. This raises the issue of normal variation within each individual vs mosaicism leading to disease, and how to distinguish between the two. In this article, we will define somatic mosaicism with a brief overview of its main mechanisms in concrete clinical examples, discuss the impact of next-generation sequencing technologies in its detection, and expand on the clinical implications associated with a discovery of somatic mosaicism in the clinic.
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Affiliation(s)
- A S A Cohen
- Department of Medical Genetics, University of British Columbia, Vancouver, Canada; Child and Family Research Institute, Vancouver, Canada
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Bai Y, Bao YB, Cai XL, Chen CH, Ye XC. Feasibility of disposing waste glyphosate neutralization liquor with cement rotary kiln. J Hazard Mater 2014; 278:500-5. [PMID: 25010454 DOI: 10.1016/j.jhazmat.2014.06.017] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [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: 04/09/2014] [Revised: 05/31/2014] [Accepted: 06/13/2014] [Indexed: 06/03/2023]
Abstract
The waste neutralization liquor generated during the glyphosate production using glycine-dimethylphosphit process is a severe pollution problem due to its high salinity and organic components. The cement rotary kiln was proposed as a zero discharge strategy of disposal. In this work, the waste liquor was calcinated and the mineralogical phases of residue were characterized by scanning electron microscope (SEM) and X-ray diffraction (XRD). The mineralogical phases and the strength of cement clinker were characterized to evaluate the influence to the products. The burnability of cement raw meal added with waste liquor and the calorific value of waste liquor were tested to evaluate the influence to the thermal state of the kiln system. The results showed that after the addition of this liquor, the differences of the main phases and the strength of cement clinker were negligible, the burnability of raw meal was improved; and the calorific value of this liquor was 6140 J/g, which made it could be considered as an alternative fuel during the actual production.
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Affiliation(s)
- Y Bai
- College of Materials Science and Engineering, Nanjing Tech University, Nanjing 210009, China; State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing Tech University, Nanjing 210009, China
| | - Y B Bao
- College of Materials Science and Engineering, Nanjing Tech University, Nanjing 210009, China; State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing Tech University, Nanjing 210009, China
| | - X L Cai
- College of Materials Science and Engineering, Nanjing Tech University, Nanjing 210009, China; State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing Tech University, Nanjing 210009, China
| | - C H Chen
- College of Materials Science and Engineering, Nanjing Tech University, Nanjing 210009, China; State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing Tech University, Nanjing 210009, China
| | - X C Ye
- College of Materials Science and Engineering, Nanjing Tech University, Nanjing 210009, China; State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing Tech University, Nanjing 210009, China.
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Wang ZJ, An RZ, Zhao JY, Zhang Q, Yang J, Wang JB, Wen GY, Yuan XH, Qi XW, Li SJ, Ye XC. Repair of articular cartilage defects by tissue-engineered cartilage constructed with adipose-derived stem cells and acellular cartilaginous matrix in rabbits. Genet Mol Res 2014; 13:4599-606. [PMID: 25036509 DOI: 10.4238/2014.june.18.2] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
After injury, inflammation, or degeneration, articular cartilage has limited self-repair ability. We aimed to explore the feasibility of repair of articular cartilage defects with tissue-engineered cartilage constructed by acellular cartilage matrices (ACMs) seeded with adipose-derived stem cells (ADSCs). The ADSCs were isolated from 3-month-old New Zealand albino rabbit by using collagenase and cultured and amplified in vitro. Fresh cartilage isolated from adult New Zealand albino rabbit were freeze-dried for 12 h and treated with Triton X-100, DNase, and RNase to obtain ACMs. ADSCs were seeded in the acellular cartilaginous matrix at 2x10(7)/mL, and cultured in chondrogenic differentiation medium for 2 weeks to construct tissue-engineered cartilage. Twenty-four New Zealand white rabbits were randomly divided into A, B, and C groups. Engineered cartilage was transplanted into cartilage defect position of rabbits in group A, group B obtained ACMs, and group C did not receive any transplants. The rabbits were sacrificed in week 12. The restored tissue was evaluated using macroscopy, histology, immunohistochemistry, and transmission electron microscopy (TEM). In the tissue-engineered cartilage group (group A), articular cartilage defects of the rabbits were filled with chondrocyte-like tissue with smooth surface. Immunohistochemistry showed type II-collagen expression and Alcian blue staining was positive. TEM showed chondrocytes in the recesses, with plenty of secretary matrix particles. In the scaffold group (group B), the defect was filled with fibrous tissue. No repaired tissue was found in the blank group (group C). Tissue-engineered cartilage using ACM seeded with ADSCs can help repair articular cartilage defects in rabbits.
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Affiliation(s)
- Z J Wang
- Department of Orthopedics Surgery, The Fifth Affiliated Hospital of Zunyi Medical College, Zhuhai, China
| | - R Z An
- Department of Orthopedics Surgery, The Fifth Affiliated Hospital of Zunyi Medical College, Zhuhai, China
| | - J Y Zhao
- Department of Orthopedics Surgery, The Fifth Affiliated Hospital of Zunyi Medical College, Zhuhai, China
| | - Q Zhang
- Department of Orthopedics Surgery, The Fifth Affiliated Hospital of Zunyi Medical College, Zhuhai, China
| | - J Yang
- Department of Orthopedics Surgery, The Fifth Affiliated Hospital of Zunyi Medical College, Zhuhai, China
| | - J B Wang
- Department of Orthopedics Surgery, The Fifth Affiliated Hospital of Zunyi Medical College, Zhuhai, China
| | - G Y Wen
- Department of Orthopedics Surgery, The Fifth Affiliated Hospital of Zunyi Medical College, Zhuhai, China
| | - X H Yuan
- Department of Orthopedics Surgery, The Fifth Affiliated Hospital of Zunyi Medical College, Zhuhai, China
| | - X W Qi
- Department of Orthopedics Surgery, The Fifth Affiliated Hospital of Zunyi Medical College, Zhuhai, China
| | - S J Li
- Department of Orthopedics Surgery, The Fifth Affiliated Hospital of Zunyi Medical College, Zhuhai, China
| | - X C Ye
- Department of Orthopedics Surgery, The Fifth Affiliated Hospital of Zunyi Medical College, Zhuhai, China
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Ye XC, Pegado V, Patel MS, Wasserman WW. Strabismus genetics across a spectrum of eye misalignment disorders. Clin Genet 2014; 86:103-11. [PMID: 24579652 PMCID: PMC4233980 DOI: 10.1111/cge.12367] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2013] [Revised: 02/20/2014] [Accepted: 02/24/2014] [Indexed: 01/24/2023]
Abstract
Eye misalignment, called strabismus, is amongst the most common phenotypes observed, occurring in up to 5% of individuals in a studied population. While misalignment is frequently observed in rare complex syndromes, the majority of strabismus cases are non-syndromic. Over the past decade, genes and pathways associated with syndromic forms of strabismus have emerged, but the genes contributing to non-syndromic strabismus remain elusive. Genetic testing for strabismus risk may allow for earlier diagnosis and treatment, as well as decreased frequency of surgery. We review human and model organism literature describing non-syndromic strabismus, including family, twin, linkage, and gene expression studies. Recent advances in the genetics of Duane retraction syndrome are considered, as relatives of those impacted show elevated familial rates of non-syndromic strabismus. As whole genome sequencing efforts are advancing for the discovery of the elusive strabismus genes, this overview is intended to support the interpretation of the new findings.
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Affiliation(s)
- X C Ye
- Centre for Molecular Medicine and Therapeutics, Child and Family Research Institute, Department of Medical Genetics, Vancouver, BC, Canada
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Abstract
BACKGROUND The concept of caring is important to both patients and nurses. If patients and nurses perceive caring behaviours differently, patients may not have their needs met or will be dissatisfied with the nursing. AIM This study conducted in mainland China compared the perceptions of nurses and patients concerning nurses' caring behaviours. METHODS From November 2011 to June 2012, 680 patients and 540 of their nurses in five hospitals in southern, central and eastern China were invited to complete a descriptive comparative survey with four subcategories, the Caring Behaviors Inventory-24. Respondents scored each of the 24 items on the survey from 1 (low) to 6 (high). Of those invited, 595 patients (87.50%) and 445 (82.41%) nurses completed the survey. RESULTS The mean item score on the Caring Behaviors Inventory-24 was 4.32 and 4.96 for patients and nurses, respectively. The subcategory with the highest mean score for both groups was knowledge and skills (4.73, 5.25), and the lowest for both groups was positive connectedness (3.98, 4.51). Nurses' scores were significantly higher than those of patients for all four subcategories (P < 0.001). CONCLUSIONS The gap between the two groups indicates that nurses need to improve their understanding and response to patients' actual and perceived needs and expectations. In China, patients require more support from nurses of their psychological needs. STUDY LIMITATIONS Participants came from a limited number of hospitals in three cities. A larger sample from different hospitals in mainland China could have increased the power of the study.
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Affiliation(s)
- T He
- Department of Nursing, People's Hospital of Zhongshan City, Zhongshan, Guangdong, China
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Rong Y, Ye XC. [TLC densitometric determination of oleanolic acid in Ligustrum lucidum Ait]. Zhongguo Zhong Yao Za Zhi 1989; 14:681-2, 704. [PMID: 2619896] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
A method for the determination of oleanolic acid in Ligustrum lucidum was studied by means of TLC densitometry. The method is easy, rapid and accurate.
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