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Sun P, Shang M, Xie R, Gao Y, Tian M, Dai Q, Zhang F, Chai F. Dual-mode fluorimetric and colorimetric sensors based on iron and nitrogen co-doped carbon dots for the detection of dopamine. Food Chem 2024; 445:138794. [PMID: 38394907 DOI: 10.1016/j.foodchem.2024.138794] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Revised: 02/15/2024] [Accepted: 02/16/2024] [Indexed: 02/25/2024]
Abstract
Determination of dopamine (DA) is crucial for its intimate relationship with clinical trials and biological environment. Herein, Fe, N co-doped carbon dots (AFC-CDs) were fabricated by optimizing precursors and reaction conditions for fluorimetric/colorimetric dual-mode sensing of DA. With synergistic influence of Förster resonance energy transfer and static quenching effect, DA significantly quenched the blue luminescence of AFC-CDs at 442 nm, the production of recognizable tan-brown complex caused evident colorimetric response, achieved the dual-mode fluorimetric/colorimetric sensing for DA. The excellent selectivity and satisfied sensitivity can be confirmed with the limit of detection at 0.29 μM and 2.31 μM via fluorimetric/colorimetric mode respectively. The reliability and practicability were proved by recovery of 94.81-101.61% in real samples. Notably, the proposed electron transfer way between AFC-CDs and DA was hypothesized logically, indicated dual-mode probe provided a promising platform for the sensing of trace DA, and could be expanded in environment and food safety.
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Affiliation(s)
- Peng Sun
- Key Laboratory of Photochemical Biomaterials and Energy Storage Materials, Heilongjiang Province, Key Laboratory for Photonic and Electronic Bandgap Materials, Ministry of Education, College of Chemistry and Chemical Engineering, Harbin Normal University, Harbin 150025, Heilongjiang Province, China
| | - Mingzhao Shang
- Key Laboratory of Photochemical Biomaterials and Energy Storage Materials, Heilongjiang Province, Key Laboratory for Photonic and Electronic Bandgap Materials, Ministry of Education, College of Chemistry and Chemical Engineering, Harbin Normal University, Harbin 150025, Heilongjiang Province, China
| | - Ruyan Xie
- Key Laboratory of Photochemical Biomaterials and Energy Storage Materials, Heilongjiang Province, Key Laboratory for Photonic and Electronic Bandgap Materials, Ministry of Education, College of Chemistry and Chemical Engineering, Harbin Normal University, Harbin 150025, Heilongjiang Province, China
| | - Yu Gao
- Key Laboratory of Photochemical Biomaterials and Energy Storage Materials, Heilongjiang Province, Key Laboratory for Photonic and Electronic Bandgap Materials, Ministry of Education, College of Chemistry and Chemical Engineering, Harbin Normal University, Harbin 150025, Heilongjiang Province, China
| | - Miaomiao Tian
- Key Laboratory of Photochemical Biomaterials and Energy Storage Materials, Heilongjiang Province, Key Laboratory for Photonic and Electronic Bandgap Materials, Ministry of Education, College of Chemistry and Chemical Engineering, Harbin Normal University, Harbin 150025, Heilongjiang Province, China
| | - Qijun Dai
- Key Laboratory of Photochemical Biomaterials and Energy Storage Materials, Heilongjiang Province, Key Laboratory for Photonic and Electronic Bandgap Materials, Ministry of Education, College of Chemistry and Chemical Engineering, Harbin Normal University, Harbin 150025, Heilongjiang Province, China
| | - Fang Zhang
- Purple Mountain Laboratories, Mozhou East Road, Nanjing, Jiangsu Province, 211111, China.
| | - Fang Chai
- Key Laboratory of Photochemical Biomaterials and Energy Storage Materials, Heilongjiang Province, Key Laboratory for Photonic and Electronic Bandgap Materials, Ministry of Education, College of Chemistry and Chemical Engineering, Harbin Normal University, Harbin 150025, Heilongjiang Province, China.
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2
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Li L, Dai Q, Zou B, Zhang Y, Zhang X, Liu L. Identification of α-Glucosidase-Inhibitors in Edgeworthia gardneri (Wall.) Meisn. Using UPLC-Q-TOF-MS/MS Analysis. Plant Foods Hum Nutr 2024:10.1007/s11130-024-01158-x. [PMID: 38436827 DOI: 10.1007/s11130-024-01158-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 02/05/2024] [Indexed: 03/05/2024]
Abstract
Edgeworthia gardneri (Wall.) Meisn., a member of the genus Edgeworthia in the family Thymelaeaceae, has long been applied as an edible and medicinal plant in China. E. gardneria has a hypoglycemic effect and is used to prepare daily drinks for the prevention and treatment of diabetes. However, the hypoglycemic substances involved remain unknown. The present study aimed to screen the α-glucosidase-inhibitors of E. gardneri and analyze its chemical profile using a ultraperformance liquid chromatography-quadrupole time-of-flight mass spectrometry (UPLC-Q-TOF-MS/MS) method. As a result, the ethyl acetate fraction (EAF) had significant α-glucosidase-inhibitory and antioxidant activities but did not show an α-amylase-inhibitory activity. A total of 67 compounds were identified in the EAF by UPLC-Q-TOF-MS/MS analysis; among them, 48 compounds were first discovered in the genus Edgeworthia. Additionally, five flavonoids, namely, isoorintin, secoisolaricirinol, tiliroside, chrysin, and kaempferol, had α-glucosidase-inhibitory activities. Rutin had a α-amylase-inhibitory activity. Daphnoretin, a kind of coumarin, has α-glucosidase and α-amylase-inhibitory activities. These findings enrich the chemical library of E. gardneria. EAF has a selective α-glucosidase-inhibitory activity, and flavonoids and coumarins may be the active components of EAF. E. gardneria has important value for developing multiple-target hypoglycemic drugs.
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Affiliation(s)
- Lin Li
- Institute of Translational Medicine, Medical College, Yangzhou University, Yangzhou, 225009, China
- Jiangsu Key Laboratory of Integrated Traditional Chinese and Western Medicine for Prevention and Treatment of Senile Diseases, Yangzhou University, Yangzhou, 225009, China
- Haian Hospital of Skin Disease, Haian, 226699, China
| | - Qijun Dai
- Department of Neurology, Haian Hospital of Traditional Chinese Medicine, Haian, 226699, China
| | - Bolin Zou
- Institute of Translational Medicine, Medical College, Yangzhou University, Yangzhou, 225009, China
| | - Yanyan Zhang
- Testing Center, Yangzhou University, Yangzhou, 225009, China.
| | - Xianwen Zhang
- Clinical Medical College, Yangzhou University, Yangzhou, 225001, China.
| | - Liang Liu
- Institute of Translational Medicine, Medical College, Yangzhou University, Yangzhou, 225009, China.
- Jiangsu Key Laboratory of Integrated Traditional Chinese and Western Medicine for Prevention and Treatment of Senile Diseases, Yangzhou University, Yangzhou, 225009, China.
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3
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Wu ZF, Sun PZ, Wahab OJ, Tan YT, Barry D, Periyanagounder D, Pillai PB, Dai Q, Xiong WQ, Vega LF, Lulla K, Yuan SJ, Nair RR, Daviddi E, Unwin PR, Geim AK, Lozada-Hidalgo M. Proton and molecular permeation through the basal plane of monolayer graphene oxide. Nat Commun 2023; 14:7756. [PMID: 38012200 PMCID: PMC10682477 DOI: 10.1038/s41467-023-43637-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2023] [Accepted: 11/15/2023] [Indexed: 11/29/2023] Open
Abstract
Two-dimensional (2D) materials offer a prospect of membranes that combine negligible gas permeability with high proton conductivity and could outperform the existing proton exchange membranes used in various applications including fuel cells. Graphene oxide (GO), a well-known 2D material, facilitates rapid proton transport along its basal plane but proton conductivity across it remains unknown. It is also often presumed that individual GO monolayers contain a large density of nanoscale pinholes that lead to considerable gas leakage across the GO basal plane. Here we show that relatively large, micrometer-scale areas of monolayer GO are impermeable to gases, including helium, while exhibiting proton conductivity through the basal plane which is nearly two orders of magnitude higher than that of graphene. These findings provide insights into the key properties of GO and demonstrate that chemical functionalization of 2D crystals can be utilized to enhance their proton transparency without compromising gas impermeability.
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Affiliation(s)
- Z F Wu
- Department of Physics and Astronomy, The University of Manchester, Manchester, M13 9PL, UK
- National Graphene Institute, The University of Manchester, Manchester, M13 9PL, UK
| | - P Z Sun
- Institute of Applied Physics and Materials Engineering, University of Macau, Avenida da Universidade, Taipa, Macau, 999078, China.
| | - O J Wahab
- Department of Chemistry, University of Warwick, Coventry, CV4 7AL, United Kingdom
| | - Y T Tan
- Department of Physics and Astronomy, The University of Manchester, Manchester, M13 9PL, UK
| | - D Barry
- Department of Physics and Astronomy, The University of Manchester, Manchester, M13 9PL, UK
| | - D Periyanagounder
- Department of Physics and Astronomy, The University of Manchester, Manchester, M13 9PL, UK
- National Graphene Institute, The University of Manchester, Manchester, M13 9PL, UK
| | - P B Pillai
- National Graphene Institute, The University of Manchester, Manchester, M13 9PL, UK
- Department of Chemical Engineering, The University of Manchester, Manchester, M13 9PL, UK
| | - Q Dai
- Department of Physics and Astronomy, The University of Manchester, Manchester, M13 9PL, UK
- National Graphene Institute, The University of Manchester, Manchester, M13 9PL, UK
| | - W Q Xiong
- Key Laboratory of Artificial Micro- and Nano-structures of the Ministry of Education and School of Physics and Technology, Wuhan University, Wuhan, 430072, China
| | - L F Vega
- Research and Innovation Center on CO2 and Hydrogen (RICH Center) and Chemical Engineering Department, Khalifa University, PO Box 127788, Abu Dhabi, United Arab Emirates
- Research and Innovation Center for graphene and 2D materials (RIC2D), Khalifa University, PO Box 127788, Abu Dhabi, United Arab Emirates
| | - K Lulla
- National Graphene Institute, The University of Manchester, Manchester, M13 9PL, UK
| | - S J Yuan
- Key Laboratory of Artificial Micro- and Nano-structures of the Ministry of Education and School of Physics and Technology, Wuhan University, Wuhan, 430072, China
| | - R R Nair
- National Graphene Institute, The University of Manchester, Manchester, M13 9PL, UK
- Department of Chemical Engineering, The University of Manchester, Manchester, M13 9PL, UK
| | - E Daviddi
- Department of Chemistry, University of Warwick, Coventry, CV4 7AL, United Kingdom
| | - P R Unwin
- Department of Chemistry, University of Warwick, Coventry, CV4 7AL, United Kingdom.
| | - A K Geim
- Department of Physics and Astronomy, The University of Manchester, Manchester, M13 9PL, UK.
- National Graphene Institute, The University of Manchester, Manchester, M13 9PL, UK.
| | - M Lozada-Hidalgo
- Department of Physics and Astronomy, The University of Manchester, Manchester, M13 9PL, UK.
- National Graphene Institute, The University of Manchester, Manchester, M13 9PL, UK.
- Research and Innovation Center for graphene and 2D materials (RIC2D), Khalifa University, PO Box 127788, Abu Dhabi, United Arab Emirates.
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Huang Y, Li K, Dai Q, Pang H, Xu Z, Luo X, Liu L. SCH 644343 alleviates ischemic stroke-induced neuroinflammation by promoting microglial polarization via the IL-4/SREBP-1 signaling pathway. Eur J Pharmacol 2023; 958:176033. [PMID: 37673365 DOI: 10.1016/j.ejphar.2023.176033] [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: 07/05/2023] [Revised: 08/25/2023] [Accepted: 08/28/2023] [Indexed: 09/08/2023]
Abstract
Ischemic stroke (IS), a kind of acute cerebrovascular disease, is one of the most common diseases, and it endangers the lives and health of elderly individuals. Inflammation is a key factor leading to stroke, making it a potential therapeutic target. Previous studies have found that neuroinflammation is closely associated with microglial polarization. Due to the various side effects of current drugs used to treat neuroinflammation, it is important to explore alternative drugs with anti-inflammatory activity for neuroinflammation treatment. In the present study, we investigated the effect of SCH 644343 (SCH), a natural compound, on neuroinflammation induced by IS and explored the mechanism. We found that SCH meliorated the phenotypes of IS in vivo, which was correlated with the increased percentage of infiltrated M2 macrophages in brain after stroke. SCH exerted a significant effect against oxygen-glucose deprivation/reoxygenation (OGD/R) in BV2 cells in vitro by inhibiting M1 microglial polarization and promoting M2 microglial polarization. Furthermore, suppression of SREBP-1 expression by pretreatment with the SREBP-1 inhibitor 25-HC attenuated the effect of SCH on IS in vitro. Taken together, SCH exerts anti-IS effect by promoting microglial polarization via the IL-4/SREBP-1 signaling pathway.
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Affiliation(s)
- Yufan Huang
- Institute of Translational Medicine, School of Medicine, Yangzhou University, Yangzhou, 225009, China; Jiangsu Key Laboratory of Integrated Traditional Chinese and Western Medicine for Prevention and Treatment of Senile Diseases, Yangzhou University, Yangzhou, 225009, China
| | - Ke Li
- Affiliated Hospital of Yangzhou University, Yangzhou University, Yangzhou, 225000, China
| | - Qijun Dai
- Department of Neurology, Haian Hospital of Traditional Chinese Medicine, Haian, 226600, China
| | - Hanqing Pang
- Institute of Translational Medicine, School of Medicine, Yangzhou University, Yangzhou, 225009, China; Jiangsu Key Laboratory of Integrated Traditional Chinese and Western Medicine for Prevention and Treatment of Senile Diseases, Yangzhou University, Yangzhou, 225009, China
| | - Ziyang Xu
- Institute of Translational Medicine, School of Medicine, Yangzhou University, Yangzhou, 225009, China
| | - Xin Luo
- Institute of Translational Medicine, School of Medicine, Yangzhou University, Yangzhou, 225009, China; Jiangsu Key Laboratory of Integrated Traditional Chinese and Western Medicine for Prevention and Treatment of Senile Diseases, Yangzhou University, Yangzhou, 225009, China
| | - Liang Liu
- Institute of Translational Medicine, School of Medicine, Yangzhou University, Yangzhou, 225009, China; Jiangsu Key Laboratory of Integrated Traditional Chinese and Western Medicine for Prevention and Treatment of Senile Diseases, Yangzhou University, Yangzhou, 225009, China.
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5
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Shen YM, Dai Q. [Exploration of functional reconstruction and rehabilitation strategies for patients with destructive electric burns]. Zhonghua Shao Shang Yu Chuang Mian Xiu Fu Za Zhi 2023; 39:713-717. [PMID: 37805780 DOI: 10.3760/cma.j.cn501225-20230506-00158] [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: 10/09/2023]
Abstract
Electric burn is a kind of three-dimensional destructive damage. It is necessary to attach great importance to the functional reconstruction and rehabilitation of patients with destructive electric burns. Wound repair and limb salvage are not the end of the treatment of destructive electric burns, but functional rehabilitation and reintegration into society of patients are the goals of treatment. This paper systematically discusses the early wound repair, late functional reconstruction and rehabilitation, limb salvage and amputation, minimized damage of donor area, psychological rehabilitation, and multi-disciplinary cooperation of destructive electric burns. Only by attaching great importance to the functional reconstruction and rehabilitation, and embedding these concepts in people's brains, perfect repair and rehabilitation of destructive electric burns can be realized.
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Affiliation(s)
- Y M Shen
- Department of Burns, Beijing Jishuitan Hospital, Capital Medical University, Beijing 100035, China
| | - Q Dai
- Department of Burns, Beijing Jishuitan Hospital, Capital Medical University, Beijing 100035, China
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6
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Jin A, Xu H, Gao X, Sun S, Yang Y, Huang X, Wang X, Liu Y, Zhu Y, Dai Q, Bian Q, Jiang L. ScRNA-Seq Reveals a Distinct Osteogenic Progenitor of Alveolar Bone. J Dent Res 2023; 102:645-655. [PMID: 37148259 DOI: 10.1177/00220345231159821] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/08/2023] Open
Abstract
The metabolism and remodeling of alveolar bone are the most active among the whole skeletal system, which is related to the biological characteristics and heterogeneity of the bone mesenchymal stromal cells (MSCs). However, there is a lack of systematic description of the heterogeneity of MSC-derived osteoblastic lineage cells as well as their distinct osteogenic differentiation trajectory of alveolar bone. In this study, we constructed a single-cell atlas of the mouse alveolar bone cells through single-cell RNA sequencing (scRNA-seq). Remarkably, by comparing the cell compositions between the alveolar bone and long bone, we uncovered a previously undescribed cell population that exhibits a high expression of protocadherin Fat4 (Fat4+ cells) and is specifically enriched around alveolar bone marrow cavities. ScRNA-seq analysis indicated that Fat4+ cells may initiate a distinct osteogenic differentiation trajectory in the alveolar bone. By isolating and cultivating Fat4+ cells in vitro, we demonstrated that they possess colony-forming, osteogenic, and adipogenic capabilities. Moreover, FAT4 knockdown could significantly inhibit the osteogenic differentiation of alveolar bone MSCs. Furthermore, we revealed that the Fat4+ cells exhibit a core transcriptional signature consisting of several key transcription factors, such as SOX6, which are involved in osteogenesis, and further demonstrated that SOX6 is required for the efficient osteogenic differentiation of the Fat4+ cells. Collectively, our high-resolution single-cell atlas of the alveolar bone reveals a distinct osteogenic progenitor that may contribute to the unique physiological characteristics of alveolar bone.
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Affiliation(s)
- A Jin
- Center of Craniofacial Orthodontics, Department of Oral and Cranio-maxillofacial Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- College of Stomatology, Shanghai Jiao Tong University, Shanghai, China
- National Center for Stomatology, Shanghai, China
- National Clinical Research Center for Oral Diseases, Shanghai, China
- Shanghai Key Laboratory of Stomatology, Shanghai, China
| | - H Xu
- Center of Craniofacial Orthodontics, Department of Oral and Cranio-maxillofacial Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- College of Stomatology, Shanghai Jiao Tong University, Shanghai, China
- National Center for Stomatology, Shanghai, China
- National Clinical Research Center for Oral Diseases, Shanghai, China
- Shanghai Key Laboratory of Stomatology, Shanghai, China
| | - X Gao
- Center of Craniofacial Orthodontics, Department of Oral and Cranio-maxillofacial Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- College of Stomatology, Shanghai Jiao Tong University, Shanghai, China
- National Center for Stomatology, Shanghai, China
- National Clinical Research Center for Oral Diseases, Shanghai, China
- Shanghai Key Laboratory of Stomatology, Shanghai, China
| | - S Sun
- Center of Craniofacial Orthodontics, Department of Oral and Cranio-maxillofacial Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- College of Stomatology, Shanghai Jiao Tong University, Shanghai, China
- National Center for Stomatology, Shanghai, China
- National Clinical Research Center for Oral Diseases, Shanghai, China
- Shanghai Key Laboratory of Stomatology, Shanghai, China
| | - Y Yang
- Center of Craniofacial Orthodontics, Department of Oral and Cranio-maxillofacial Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- College of Stomatology, Shanghai Jiao Tong University, Shanghai, China
- National Center for Stomatology, Shanghai, China
- National Clinical Research Center for Oral Diseases, Shanghai, China
- Shanghai Key Laboratory of Stomatology, Shanghai, China
| | - X Huang
- Center of Craniofacial Orthodontics, Department of Oral and Cranio-maxillofacial Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- College of Stomatology, Shanghai Jiao Tong University, Shanghai, China
- National Center for Stomatology, Shanghai, China
- National Clinical Research Center for Oral Diseases, Shanghai, China
- Shanghai Key Laboratory of Stomatology, Shanghai, China
| | - X Wang
- Center of Craniofacial Orthodontics, Department of Oral and Cranio-maxillofacial Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- College of Stomatology, Shanghai Jiao Tong University, Shanghai, China
- National Center for Stomatology, Shanghai, China
- National Clinical Research Center for Oral Diseases, Shanghai, China
- Shanghai Key Laboratory of Stomatology, Shanghai, China
| | - Y Liu
- Center of Craniofacial Orthodontics, Department of Oral and Cranio-maxillofacial Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- College of Stomatology, Shanghai Jiao Tong University, Shanghai, China
- National Center for Stomatology, Shanghai, China
- National Clinical Research Center for Oral Diseases, Shanghai, China
- Shanghai Key Laboratory of Stomatology, Shanghai, China
| | - Y Zhu
- Center of Craniofacial Orthodontics, Department of Oral and Cranio-maxillofacial Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- College of Stomatology, Shanghai Jiao Tong University, Shanghai, China
- National Center for Stomatology, Shanghai, China
- National Clinical Research Center for Oral Diseases, Shanghai, China
- Shanghai Key Laboratory of Stomatology, Shanghai, China
| | - Q Dai
- College of Stomatology, Shanghai Jiao Tong University, Shanghai, China
- National Center for Stomatology, Shanghai, China
- National Clinical Research Center for Oral Diseases, Shanghai, China
- Shanghai Key Laboratory of Stomatology, Shanghai, China
- The 2nd Dental Center, Ninth People's Hospital, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Q Bian
- Center of Craniofacial Orthodontics, Department of Oral and Cranio-maxillofacial Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- College of Stomatology, Shanghai Jiao Tong University, Shanghai, China
- National Center for Stomatology, Shanghai, China
- National Clinical Research Center for Oral Diseases, Shanghai, China
- Shanghai Key Laboratory of Stomatology, Shanghai, China
- Shanghai Institute of Precision Medicine, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - L Jiang
- Center of Craniofacial Orthodontics, Department of Oral and Cranio-maxillofacial Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- College of Stomatology, Shanghai Jiao Tong University, Shanghai, China
- National Center for Stomatology, Shanghai, China
- National Clinical Research Center for Oral Diseases, Shanghai, China
- Shanghai Key Laboratory of Stomatology, Shanghai, China
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7
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Dai Q, Sun S, Jin A, Gong X, Xu H, Yang Y, Huang X, Wang X, Liu Y, Gao J, Gao X, Liu J, Bian Q, Wu Y, Jiang L. Osteoblastic RAR Inhibition Causes VAD-Like Craniofacial Skeletal Deformity. J Dent Res 2023; 102:667-677. [PMID: 37036085 DOI: 10.1177/00220345231151691] [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] [Indexed: 04/11/2023] Open
Abstract
Retinoid signaling disorders cause craniofacial deformity, among which infants with maternal vitamin A deficiency (VAD) exhibited malformation of the eye, nose, palate, and parietal and jaw bone. Previous research uncovered the pathogenesis of eye defect and cleft palate of VAD in mice, but the studies on craniofacial skeletal deformity met obstacles, and the cell/lineage and underlying mechanism remain unclear. The retinoic acid receptor (RAR) is the key transcription factor in retinoid signaling, but individual knockout cannot simulate pathway inhibition. Here, we conditionally expressed dominant-negative RARα mutation (dnRARα) in osteoblasts to specifically inhibit the transcription activity of RAR in mice, which mimics the craniofacial deformities caused by VAD in clinical cases: hypomineralization of cranial bones, mandibular deformity, and clavicular hypoplasia. Furthermore, we performed 3-dimensional reconstruction based on micro-computed tomography and confirmed the abnormalities in the shape, size, and ossification of craniofacial bones due to osteoblastic RAR inhibition. Histological analysis indicated that inhibition of RAR in osteoblasts impaired both bone formation and bone resorption, which was confirmed by transcriptome sequencing of the calvaria. Furthermore, mechanism investigation showed that inhibition of RAR in osteoblasts directly decreased osteoblast differentiation in a cell-autonomous manner by impairing osteogenic gene transcription and also inhibited osteoclast differentiation via osteoblast-osteoclast crosstalk by impairing Rankl transcription. In summary, osteoblastic RAR activity is critical to craniofacial skeletal development, and its dysfunction leads to skeletal deformities mimicking VAD craniofacial defects, providing a new insight for VAD pathogenesis.
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Affiliation(s)
- Q Dai
- The 2nd Dental Center, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- College of Stomatology, Shanghai Jiao Tong University, Shanghai, China
- National Center for Stomatology, Shanghai, China
- National Clinical Research Center for Oral Disease, Shanghai, China
- Shanghai Key Laboratory of Stomatology, Shanghai, China
- Department of Stomatology, Zhang Zhiyuan Academician Work Station, Hainan Western Central Hospital, Shanghai Ninth People's Hospital, Danzhou, Hainan, China
| | - S Sun
- College of Stomatology, Shanghai Jiao Tong University, Shanghai, China
- National Center for Stomatology, Shanghai, China
- National Clinical Research Center for Oral Disease, Shanghai, China
- Shanghai Key Laboratory of Stomatology, Shanghai, China
- Center of Craniofacial Orthodontics, Department of Oral and Cranio-maxillofacial Science, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - A Jin
- College of Stomatology, Shanghai Jiao Tong University, Shanghai, China
- National Center for Stomatology, Shanghai, China
- National Clinical Research Center for Oral Disease, Shanghai, China
- Shanghai Key Laboratory of Stomatology, Shanghai, China
- Center of Craniofacial Orthodontics, Department of Oral and Cranio-maxillofacial Science, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - X Gong
- College of Stomatology, Shanghai Jiao Tong University, Shanghai, China
- National Center for Stomatology, Shanghai, China
- National Clinical Research Center for Oral Disease, Shanghai, China
- Shanghai Key Laboratory of Stomatology, Shanghai, China
- Center of Craniofacial Orthodontics, Department of Oral and Cranio-maxillofacial Science, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - H Xu
- College of Stomatology, Shanghai Jiao Tong University, Shanghai, China
- National Center for Stomatology, Shanghai, China
- National Clinical Research Center for Oral Disease, Shanghai, China
- Shanghai Key Laboratory of Stomatology, Shanghai, China
- Center of Craniofacial Orthodontics, Department of Oral and Cranio-maxillofacial Science, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Y Yang
- College of Stomatology, Shanghai Jiao Tong University, Shanghai, China
- National Center for Stomatology, Shanghai, China
- National Clinical Research Center for Oral Disease, Shanghai, China
- Shanghai Key Laboratory of Stomatology, Shanghai, China
- Center of Craniofacial Orthodontics, Department of Oral and Cranio-maxillofacial Science, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - X Huang
- College of Stomatology, Shanghai Jiao Tong University, Shanghai, China
- National Center for Stomatology, Shanghai, China
- National Clinical Research Center for Oral Disease, Shanghai, China
- Shanghai Key Laboratory of Stomatology, Shanghai, China
- Center of Craniofacial Orthodontics, Department of Oral and Cranio-maxillofacial Science, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - X Wang
- College of Stomatology, Shanghai Jiao Tong University, Shanghai, China
- National Center for Stomatology, Shanghai, China
- National Clinical Research Center for Oral Disease, Shanghai, China
- Shanghai Key Laboratory of Stomatology, Shanghai, China
- Center of Craniofacial Orthodontics, Department of Oral and Cranio-maxillofacial Science, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Y Liu
- College of Stomatology, Shanghai Jiao Tong University, Shanghai, China
- National Center for Stomatology, Shanghai, China
- National Clinical Research Center for Oral Disease, Shanghai, China
- Shanghai Key Laboratory of Stomatology, Shanghai, China
- Center of Craniofacial Orthodontics, Department of Oral and Cranio-maxillofacial Science, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - J Gao
- The 2nd Dental Center, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- College of Stomatology, Shanghai Jiao Tong University, Shanghai, China
- National Center for Stomatology, Shanghai, China
- National Clinical Research Center for Oral Disease, Shanghai, China
- Shanghai Key Laboratory of Stomatology, Shanghai, China
| | - X Gao
- College of Stomatology, Shanghai Jiao Tong University, Shanghai, China
- National Center for Stomatology, Shanghai, China
- National Clinical Research Center for Oral Disease, Shanghai, China
- Shanghai Key Laboratory of Stomatology, Shanghai, China
- Center of Craniofacial Orthodontics, Department of Oral and Cranio-maxillofacial Science, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - J Liu
- College of Stomatology, Shanghai Jiao Tong University, Shanghai, China
- National Center for Stomatology, Shanghai, China
- National Clinical Research Center for Oral Disease, Shanghai, China
- Shanghai Key Laboratory of Stomatology, Shanghai, China
- Center of Craniofacial Orthodontics, Department of Oral and Cranio-maxillofacial Science, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Q Bian
- Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Shanghai Institute of Precision Medicine, Shanghai, China
| | - Y Wu
- The 2nd Dental Center, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- College of Stomatology, Shanghai Jiao Tong University, Shanghai, China
- National Center for Stomatology, Shanghai, China
- National Clinical Research Center for Oral Disease, Shanghai, China
- Shanghai Key Laboratory of Stomatology, Shanghai, China
| | - L Jiang
- College of Stomatology, Shanghai Jiao Tong University, Shanghai, China
- National Center for Stomatology, Shanghai, China
- National Clinical Research Center for Oral Disease, Shanghai, China
- Shanghai Key Laboratory of Stomatology, Shanghai, China
- Center of Craniofacial Orthodontics, Department of Oral and Cranio-maxillofacial Science, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
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McClary T, Blee S, Avinger A, Dai Q, Switchenko J, Dixon M, Pentz R. Accounting for the High Enrollment of African Americans on Winship Cancer Institute's Myeloma Clinical Trials. Ethics Med Public Health 2023; 27:100877. [PMID: 37007841 PMCID: PMC10062432 DOI: 10.1016/j.jemep.2023.100877] [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] [Indexed: 03/06/2023]
Abstract
Background Thirty-four percent of Multiple Myeloma (MM) clinical trial participants at Winship Cancer Institute (Winship) are African American (AA); however, AAs make up only 4.5 percent of myeloma clinical trial participants in the United States. Given our high enrollment, we aimed to measure AAs' trust in providers and identify if clinical trial enrollment barriers exist. Methodology A member of the ethics research team surveyed AA patients who had consented to a MM clinical trial at Winship. Three validated surveys were used: Trust in Medical Research (TMR); Human Connection (THC) which measures how much patients feel they are heard and valued by their physicians; and the Duke Intrinsic Religiosity Scale (DUREL) which measures strength of religious engagement and belief. The survey also included questions about the impact of side effects, distance to the trial center and trial related costs on the decision to participate in clinical trial. Results Ninety-two percent (61/67) of patients approached consented. The mean TMR score and the mean THC score were significantly higher (P-value < 0.001) than the results obtained in key national surveys (TMR 14.9 compared to 11.65; THC 57.7 compared to 54.6). These two surveys were significantly correlated, meaning trust and human connection increase or decrease in tandem. The 3 religiosity subscale results showed high religiosity (3.84, 4.36, and 4.35 with 5 being the highest score). The mean scores of the importance of the investigational agent's side effects, trial costs, and distance to trial center on the decision to enroll in a clinical trial were also high (8.5, 7.8, and 6.5, respectively, with 10 being the most important). Conclusion In our study population, high trust and human connection overcame other trial participation barriers: strong religious beliefs and concerns about side effects, costs, and travel distance. We present a roadmap to guide investigators to increase human connection, and hopefully trust.
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Affiliation(s)
- T.S. McClary
- Emory University, Winship Cancer Institute, 1365, Clifton Road, 30322 Atlanta, GA, USA
- South University Orlando Campus5900 Lake Ellenor Dr, Orlando Fl 32809
| | - S.M. Blee
- Emory University, Winship Cancer Institute, 1365, Clifton Road, 30322 Atlanta, GA, USA
- Creighton University Medical School2621 Burt Street, Omaha, Nebraska 68178
| | - A.M. Avinger
- Emory University, Winship Cancer Institute, 1365, Clifton Road, 30322 Atlanta, GA, USA
- Wake Forest University School of Medicine, 475 Vine St, Winston-Salem, NC 27101
| | - Q. Dai
- School of Public Health, Emory University Rollins, 1518, Clifton Road, 30322 Atlanta, GA, USA
| | - J. Switchenko
- School of Public Health, Emory University Rollins, 1518, Clifton Road, 30322 Atlanta, GA, USA
| | - M.D. Dixon
- Emory University, Winship Cancer Institute, 1365, Clifton Road, 30322 Atlanta, GA, USA
| | - R.D. Pentz
- Emory University, Winship Cancer Institute, 1365, Clifton Road, 30322 Atlanta, GA, USA
- Emory University School of Medicine, 100, Woodruff Circle, 30322 Atlanta, GA, USA
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Dai Q, Shi YX, Zhang HK, Song XL, Liu Q, Zhao KQ, Yang JY, Wang L, Sun XC, Yu HM. Salvage endoscopic surgery for skull base osteoradionecrosis in nasopharyngeal carcinoma patients: A prospective, observational, single-arm clinical study. Rhinology 2023; 61:61-70. [PMID: 36286011 DOI: 10.4193/rhin22.303] [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] [Indexed: 02/02/2023]
Abstract
BACKGROUND Postradiation skull base osteoradionecrosis (ORN) is a severe complication that occurs after radiotherapy in patients with nasopharyngeal carcinoma (NPC) that can severely affect quality of life (QOL) and be life threatening. Only 13.4% - 28.6% of patients can be cured by traditional repeated endoscopic debridement. Here, we introduced salvage endoscopic surgery for skull base ORN patients and evaluated its clinical efficacy. METHODS This was a prospective, observational, single-arm clinical study. Clinical data from 18 skull base ORN patients who underwent radical endoscopic necrectomy followed by reconstruction using a septal pedicled mucosal flap or temporal muscle flap were included in the study. The endpoint was an overall survival (OS) of 2 years. The numeric rating scale (NRS) scores for pain and foul odor were analyzed to determine the efficacy and safety of this surgery. RESULTS A total of 21 patients were recruited, 18 of whom completed the study and were analyzed. All surgeries were successfully performed. During the 2-year study, the OS rate of the entire cohort was 75%. The median NRS score for pain decreased from 6.44 +- 2.62 to 0.50 +- 0.71, and the NRS score for foul odor decreased from 1.89±1.08 to 1 after surgery. CONCLUSIONS Salvage endoscopic necrectomy followed by construction using a septal pedicled mucosal flap or temporal muscle flap is a novel, safe, and effective treatment for ORN in patients with NPC. CLINICAL TRIAL REGISTRATION This study was approved by the independent ethics committee of the Eye, Ear, Nose and Throat Hospital of Fudan University (IEC No. 2019095-1). Written informed consent was obtained from all patients. The study was registered with the Chinese Clinical Trial registry (ChiCTR2000029327).
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Affiliation(s)
- Q Dai
- Department of Otolaryngology, Eye and ENT Hospital, Fudan University, Shanghai, 200031, PR China
| | - Y-X Shi
- Department of Otolaryngology, Eye and ENT Hospital, Fudan University, Shanghai, 200031, PR China
| | - H-K Zhang
- Department of Otolaryngology, Eye and ENT Hospital, Fudan University, Shanghai, 200031, PR China
| | - X-L Song
- Department of Otolaryngology, Eye and ENT Hospital, Fudan University, Shanghai, 200031, PR China
| | - Q Liu
- Department of Otolaryngology, Eye and ENT Hospital, Fudan University, Shanghai, 200031, PR China
| | - K-Q Zhao
- Department of Otolaryngology, Eye and ENT Hospital, Fudan University, Shanghai, 200031, PR China
| | - J-Y Yang
- Department of Otolaryngology, Eye and ENT Hospital, Fudan University, Shanghai, 200031, PR China
| | - L Wang
- Department of Otolaryngology, Eye and ENT Hospital, Fudan University, Shanghai, 200031, PR China
| | - X-C Sun
- Department of Otolaryngology, Eye and ENT Hospital, Fudan University, Shanghai, 200031, PR China
| | - H-M Yu
- Department of Otolaryngology, Eye and ENT Hospital, Fudan University, Shanghai, 200031, PR China; Research Units of New Technologies of Endoscopic Surgery in Skull Base Tumor (2018RU003), Chinese Academy of Medical Sciences; Beijing, 200031, PR China
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Zhang G, Li Q, Tao W, Qin P, Chen J, Yang H, Chen J, Liu H, Dai Q, Zhen X. Sigma-1 receptor-regulated efferocytosis by infiltrating circulating macrophages/microglial cells protects against neuronal impairments and promotes functional recovery in cerebral ischemic stroke. Theranostics 2023; 13:543-559. [PMID: 36632219 PMCID: PMC9830433 DOI: 10.7150/thno.77088] [Citation(s) in RCA: 4] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Accepted: 12/05/2022] [Indexed: 01/04/2023] Open
Abstract
Background: Efferocytosis of apoptotic neurons by macrophages is essential for the resolution of inflammation and for neuronal protection from secondary damage. It is known that alteration of the Sigma-1 receptor (Sig-1R) is involved in the pathological development of some neurological diseases, including ischemic stroke. The present study aimed to investigate whether and how Sig-1R regulates the phagocytic activity of macrophages/microglia and its significance in neuroprotection and neurological function in stroke. Methods: The roles of Sig-1R in the efferocytosis activity of microglia/macrophages using bone marrow-derived macrophages (BMDMs) or using Sig-1R knockout mice subjected to transient middle artery occlusion (tMCAO)-induced stroke were investigated. The molecular mechanism of Sig-1R in the regulation of efferocytosis was also explored. Adoptive transfer of Sig-1R intact macrophages to recipient Sig-1R knockout mice with tMCAO was developed to observe its effect on apoptotic neuron clearance and stroke outcomes. Results: Depletion of Sig-1R greatly impaired the phagocytic activity of macrophages/microglia, accordingly with worsened brain damage and neurological defects in Sig-1R knockout mice subjected to tMCAO. Adoptive transfer of Sig-1R intact bone marrow-derived macrophages (BMDMs) to Sig-1R knockout mice restored the clearance activity of dead/dying neurons, reduced infarct area and neuroinflammation, and improved long-term functional recovery after cerebral ischemia. Mechanistically, Sig-1R-mediated efferocytosis was dependent on Rac1 activation in macrophages, and a few key sites of Rac1 in its binding pocket responsible for the interaction with Sig-1R were identified. Conclusion: Our data provide the first evidence of the pivotal role of Sig-1R in macrophage/microglia-mediated efferocytosis and elucidate a novel mechanism for the neuroprotection of Sig-1R in ischemic stroke.
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Affiliation(s)
- Gufang Zhang
- Jiangsu Key Laboratory of Neuropsychiatric Diseases and Department of Pharmacology, College of Pharmaceutical Sciences, Soochow University, Suzhou, Jiangsu 215123, China
| | - Qi Li
- Jiangsu Key Laboratory of Neuropsychiatric Diseases and Department of Pharmacology, College of Pharmaceutical Sciences, Soochow University, Suzhou, Jiangsu 215123, China
| | - Weijie Tao
- Jiangsu Key Laboratory of Neuropsychiatric Diseases and Department of Pharmacology, College of Pharmaceutical Sciences, Soochow University, Suzhou, Jiangsu 215123, China
| | - Pingping Qin
- Jiangsu Key Laboratory of Neuropsychiatric Diseases and Department of Pharmacology, College of Pharmaceutical Sciences, Soochow University, Suzhou, Jiangsu 215123, China
| | - Jiali Chen
- Jiangsu Key Laboratory of Neuropsychiatric Diseases and Department of Pharmacology, College of Pharmaceutical Sciences, Soochow University, Suzhou, Jiangsu 215123, China
| | - Huicui Yang
- Jiangsu Key Laboratory of Neuropsychiatric Diseases and Department of Pharmacology, College of Pharmaceutical Sciences, Soochow University, Suzhou, Jiangsu 215123, China
| | - Jiaojiao Chen
- Jiangsu Key Laboratory of Neuropsychiatric Diseases and Department of Pharmacology, College of Pharmaceutical Sciences, Soochow University, Suzhou, Jiangsu 215123, China
| | - Hua Liu
- Department of Neurobiology, Hai'an Hospital of Traditional Chinese Medicine, Hai'an 226600, China
| | - Qijun Dai
- Department of Neurobiology, Hai'an Hospital of Traditional Chinese Medicine, Hai'an 226600, China.,✉ Corresponding author: Prof. Xuechu Zhen, Jiangsu Key Laboratory of Neuropsychiatric Diseases and Department of Pharmacology, College of Pharmaceutical Sciences, Soochow University. 199 Ren'ai Road, Suzhou, Jiangsu, 215006; Qijun Dai, Department of Neurobiology, Hai'an Hospital of Traditional Chinese Medicine. 55 Ninghai Middle Road, Hai'an, Jiangsu, 226600. E-mail: ; . Telephone: (86)-512-6588 0369; Fax: (86)-512-6588 0369
| | - Xuechu Zhen
- Jiangsu Key Laboratory of Neuropsychiatric Diseases and Department of Pharmacology, College of Pharmaceutical Sciences, Soochow University, Suzhou, Jiangsu 215123, China.,✉ Corresponding author: Prof. Xuechu Zhen, Jiangsu Key Laboratory of Neuropsychiatric Diseases and Department of Pharmacology, College of Pharmaceutical Sciences, Soochow University. 199 Ren'ai Road, Suzhou, Jiangsu, 215006; Qijun Dai, Department of Neurobiology, Hai'an Hospital of Traditional Chinese Medicine. 55 Ninghai Middle Road, Hai'an, Jiangsu, 226600. E-mail: ; . Telephone: (86)-512-6588 0369; Fax: (86)-512-6588 0369
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Fan L, Zhu X, Borenstein AR, Huang X, Shrubsole MJ, Dugan LL, Dai Q. Association of Circulating Caprylic Acid with Risk of Mild Cognitive Impairment and Alzheimer's Disease in the Alzheimer's Disease Neuroimaging Initiative (ADNI) Cohort. J Prev Alzheimers Dis 2023; 10:513-522. [PMID: 37357292 PMCID: PMC10442865 DOI: 10.14283/jpad.2023.37] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/27/2023]
Abstract
OBJECTIVE Medium-chain fatty acids (MCFAs) can rapidly cross the blood-brain barrier and provide an alternative energy source for the brain. This study aims to determine 1) whether plasma caprylic acid (C8:0) is associated with risk of incident mild cognitive impairment (MCI) among baseline cognitively normal (CN) participants, and incident Alzheimer's Disease (AD) among baseline MCI participants; and 2) whether these associations differ by sex, comorbidity of cardiometabolic diseases, apolipoprotein E (APOE) ε4 alleles, and ADAS-Cog 13. METHODS Within the Alzheimer's Disease Neuroimaging Initiative (ADNI) cohort, plasma C8:0 was measured at baseline in 618 AD-free participants aged 55 to 91. Logistic regression models were used to estimate odds ratios (ORs) and 95% CIs with incident MCI and AD as dependent variables, separately. RESULTS The inverse association between circulating C8:0 and risk of incident MCI was of borderline significance. The inverse association between circulating levels of C8:0 and risk of incident MCI was significant among CN participants with ≥1 cardiometabolic diseases [OR (95% CI): 0.75 (0.58-0.98) (P=0.03)], those with one copy of APOE ε4 alleles [OR (95% CI): 0.43 (0.21-0.89) (P=0.02)], female [OR (95% CI): 0.60 (0.38-0.94) (P=0.02)], and ADAS-Cog 13 above the median [OR (95%CI): 0.69 (0.50-0.97)(P=0.03)] after adjusting for all covariates. CONCLUSION The inverse associations were present only among subgroups of CN participants, including female individuals, those with one or more cardiometabolic diseases, or one APOE ε4 allele, or higher ADAS-Cog 13 scores. If confirmed, this finding will facilitate precision prevention of MCI, in turn, AD among CN older adults.
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Affiliation(s)
- L Fan
- Qi Dai, M.D., Ph.D., Department of Medicine, Vanderbilt University Medical Center, 2525 West End Avenue, Suite 800, Nashville, TN 37203-1738, USA, Phone: (615) 936-0707, Fax: (615) 343-5938, E-mail:
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12
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Dai Q, Sun J, Dai T, Xu Q, Ding Y. miR-29c-5p knockdown reduces inflammation and blood–brain barrier disruption by upregulating LRP6. Open Med (Wars) 2022; 17:353-364. [PMID: 35799601 PMCID: PMC8864056 DOI: 10.1515/med-2022-0438] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2021] [Revised: 01/17/2022] [Accepted: 01/19/2022] [Indexed: 11/18/2022] Open
Abstract
Blood–brain barrier participates in the pathological process of ischemic stroke. MicroRNA-29c-5p was highly expressed in clinical samples from patients with ischemic stroke. In this study, oxygen-glucose deprivation (OGD) treatment of astrocytes enhanced the permeability of brain microvascular endothelial cells (BMECs), and the miR-29c-5p expression was elevated in clinical samples from patients with ischemic stroke. For the function of miR-29c-5p in ischemic stroke, the miR-29c-5p knockdown decreased the permeability and the tight junction protein (TJP) destruction of BMECs and ameliorated the inflammation induced by OGD-treated astrocytes. Mechanistically, miR-29c-5p interacted with lipoprotein receptor-related protein 6 (LRP6) and negatively regulated the LRP6 expression in astrocytes. Moreover, the rescue assays indicated that the interference with miR-29c-5p ameliorated the TJP destruction of BMECs and inflammation caused by OGD-treated astrocytes by increasing the LRP6 expression. Together, miR-29c-5p knockdown decreased the high permeability and the TJP destruction of BMECs and ameliorated the inflammation induced by OGD-treated astrocytes by elevating LRP6 expression.
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Affiliation(s)
- Qijun Dai
- Department of Neurology, Haian Hospital of Traditional Chinese Medicine , Haian , 226600 , China
| | - Jian Sun
- Department of Endocrinology, Jingjiang Hospital of Traditional Chinese Medicine , Jingjiang , 214500 , China
| | - Tianyi Dai
- College of Traditional Chinese Medicine, Nanjing University of Chinese Medicine , Class 1802 , Nanjing , 210023 , China
| | - Qin Xu
- Department of Neurology, Haian Hospital of Traditional Chinese Medicine , Haian , 226600 , China
| | - Yueqin Ding
- Department of Nursing, Haian Hospital of Traditional Chinese Medicine , Haian , 226600 , China
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13
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Pu Z, Wang Y, Ge F, Zhu S, Cheng Y, Liu H, Dai Q, Hua H. Matrine induces cell cycle arrest and apoptosis in hepatocellular carcinoma cells via miR-122 mediated CG1/livin/survivin signal axis. TROP J PHARM RES 2022. [DOI: 10.4314/tjpr.v20i2.6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Purpose: To study the impact of matrine on cell cycle and apoptotic changes in hepatoma cells, and the mechanism involved.
Methods: Human hepatoma cell line HepG2 was treated with different concentrations of matrine. The blank control cells were maintained in 1640 medium only. The influence of matrine on proliferative ability was determined with 3-(4,5)-dimethylthiahiazo (-z-y1)-3,5-di- phenytetrazoliumromide (MTT) method. Flow cytometry was used to determine its effect on cell cycle and apoptosis; RT-PCR (reverse transcription-polymerase chain reaction) was applied to assay the mRNA expressions of miR-122, cyclin G1 (CG1), livin and survivin mRNA, while the protein expressions of CG1, livin and surviving were assayed by Western blotting.
Results: Matrine time- and dose-dependently suppressed the proliferative capacity of the cells. At a concentration of 0.5 mg/mL, matrine had no significant effect on the cell cycle. However, 1.0 mg/mL matrine blocked the cell cycle in G1 phase, while 1.5 mg/mL matrine blocked HepG2 cells in G2/M phase (p < 0.05). Moreover, matrine induced apoptosis in HepG2 cells, and markedly downregulated the expressions of miR-122 concentration- time-reliantly (p < 0.05). In addition, matrine markedly and concentration-dependently reduced mRNA and protein expression levels of CG1, livin and survivin, with the strongest inhibitory effect at a level of 1.5 mg/mL.
Conclusion: Matrine induces cell cycle block and apoptotic changes in hepatoma cells through a mechanism related to regulation of the CG1/livin/survivin signal axis mediated by miR-122. Matrine may be a potential treatment for liver cancer. However, clinical trials are needed to confirm this potential.
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Xu C, Chen Q, Zhou C, Wu L, Li W, Zhang H, Li Y, Xu F, Xiong J, Wang Q, Zhang H, Jiang Y, Yin H, Wu Q, Dai Q, Hu J, Chen J, Zhang J, Wu G, Wu YL. 98P Camrelizumab as neoadjuvant, first- or later-line treatment for non-small cell lung cancer (NSCLC): A retrospective real-world study (CTONG2004). Ann Oncol 2021. [DOI: 10.1016/j.annonc.2021.10.116] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
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Abstract
Abstract
Background
Sarcoidosis is a systemic granulomatous disease with cardiac involvement reported in 20–27% of patients [1]. Cardiac sarcoidosis (CS) can lead to atrial or ventricular arrhythmias, various conduction system disorders, heart failure or sudden cardiac death, depending on the location of myocardial involvement [2]. Previous studies have investigated the possible types of CS based on the distribution of myocardial involvement on imaging as well as the role of genetic factors [3,4]. However, there are no studies describing the clinical heterogeneity of CS patients.
Purpose
In order to determine if clinical clusters exist in CS, we carried out a latent class analysis (LCA) to explore potential phenotypes in a large sample of CS patients from the National Inpatient Sample (NIS).
Methods
We identified 848 patients with a diagnosis of CS from the NIS in 2016–2018. A LCA was performed based on comorbidities. Utilizing the Bayesian information criterion and Akaike's information criterion we divided our study population into 3 cohorts. We subsequently applied the LCA model for our study population to fit each patient into one of the 3 cohorts. Finally, we compared the clinical outcomes among the 3 groups.
Results
Following LCA, patients in cohort 3 were strongly associated with a cardiometabolic syndrome profile with the highest prevalence of congestive heart failure (CHF, 95.1%), chronic kidney disease (CKD, 69.7%), diabetes mellitus (68.9%), hyperlipidemia (52.5%) and obesity (45.1%). Patients in cohort 2 had an intermediate prevalence of cardiometabolic syndrome with a universal diagnosis of hypertension (100%) but with the lowest number of CHF (32.5%) patients and none with CKD. Finally, patients in cohort 1 had the least comorbidities in comparison to the other groups but there was a higher prevalence of CHF (71.7%). There was no significant difference in mortality among the 3 groups, but acute respiratory failure was the highest in cohort 3. However, ventricular arrhythmias were more prevalent in cohort 1 patients (Table).
Conclusion
We identified 3 different types of CS based on their clinical phenotype. The clinical outcomes varied among the cohorts with ventricular arrhythmias being the most prevalent in patients with the least cardiometabolic comorbidities.
Funding Acknowledgement
Type of funding sources: None.
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Affiliation(s)
- Q Dai
- Saint Vincent Hospital, Worcester, United States of America
| | - B Bose
- Saint Vincent Hospital, Cardiology, Worcester, United States of America
| | - P Li
- Saint Vincent Hospital, internal medicine, Worcester, United States of America
| | - B Liu
- John H. Stroger Jr. Hospital of Cook County, internal medicine, Chicago, United States of America
| | - L Jin
- Metrowest Medical Center, internal medicine, Framingham, United States of America
| | - D Laidlaw
- Saint Vincent Hospital, Cardiology, Worcester, United States of America
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Hu N, Wang C, Liao Y, Dai Q, Cao S. Smoking and incidence of insomnia: a systematic review and meta-analysis of cohort studies. Public Health 2021; 198:324-331. [PMID: 34507139 DOI: 10.1016/j.puhe.2021.07.012] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2020] [Revised: 05/28/2021] [Accepted: 07/09/2021] [Indexed: 11/28/2022]
Abstract
OBJECTIVE This study investigated the impact of smoking on the incidence of insomnia. STUDY DESIGN Systematic review and meta-analysis of cohort studies. METHODS PubMed, EMBASE, Web of Science, Cochrane Library, and OVID were searched through March 2020. Cohort studies reporting the effect of smoking on the incidence of insomnia were included. We quantitatively analyzed the basic framework and study characteristics and then pooled estimate effects with 95% confidence intervals (CIs) of outcomes of each included study using fixed-effects meta-analyses. RESULTS This systematic review included six cohort studies involving 12,445 participants. Quantitatively summarized results suggested that smoking could significantly increase the incidence of insomnia (odds ratio [OR]: 1.07, 95% CI: 1.02, 1.13). Regular smoking was significantly associated with the incidence of insomnia (OR = 1.07, 95% CI: 1.01, 1.13). As for occasional smokers and ex-smokers, the pooled analysis did not indicate a significant association (occasional smoker: OR = 2.09, 95% CI: 0.44, 9.95; ex-smoker; OR = 1.02, 95% CI: 0.67, 1.54). Subgroup analysis by age, gender ratio, and region showed a statistically significant relationship between smoking and the incidence of insomnia in specific groups. CONCLUSIONS Integrated longitudinal observational evidence identified smoking as a significant risk factor of insomnia. Considering the limited amount of available studies, more high-quality and prospective cohort studies of large sample sizes are needed to explore details of this association.
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Affiliation(s)
- N Hu
- Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430030, China
| | - C Wang
- Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430030, China
| | - Y Liao
- Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430030, China
| | - Q Dai
- Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, 430030, China
| | - S Cao
- School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China.
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Hong X, Zhao J, Zhu X, Dai Q, Zhang H, Xuan Y, Yin J, Zhang Y, Yang X, Fang S, Wang Q, Shen H, Zhang Y, Yan D, Wang Y, Peng Z, Zhang Y, Wang B, Ma X. The association between the vaginal microenvironment and fecundability: a register-based cohort study among Chinese women. BJOG 2021; 129:43-51. [PMID: 34258836 DOI: 10.1111/1471-0528.16843] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2020] [Revised: 05/18/2021] [Accepted: 05/27/2021] [Indexed: 12/13/2022]
Abstract
OBJECTIVE To evaluate the association between the vaginal microenvironment and fecundability among women. DESIGN Register-based nationwide cohort study. SETTING Chinese National Free Pre-conception Check-up Project from 2015 to 2018. POPULATION Our study included a total of 3 388 554 eligible women who were attempting to become pregnant. METHOD We assessed the vaginal microenvironment at baseline by considering four indices: vaginal pH, clue cell examination, whiff test and vaginal cleanliness grading. If any of these indicators was abnormal, the vaginal microenvironment was defined as poor. Propensity score matching was used to control for potential confounders and reduce bias. Logistic models were used to estimate the fecundability odds ratios (FORs) after adjustment for covariates. MAIN OUTCOME MEASURES Achievement of a pregnancy within 1 year. RESULTS Of the total study population, 379 718 women (11.2%) had a poor vaginal microenvironment and their pregnancy rate after 1 year was significantly lower than the group with a normal microenvironment (71.8% versus 76.1%, P < 0.001). After adjusting for potential confounders, the women with a poor vaginal microenvironment were associated with a 9% reduction in fecundability compared with the normal microenvironment group (FOR 0.91, 95% CI 0.90-0.92). The adverse effects of a poor vaginal microenvironment were stronger among multipara (FOR 0.89, 95% CI 0.87-0.90) or women with irregular menstruation (FOR 0.86, 95% CI 0.84-0.89). CONCLUSION There was a negative association between a poor vaginal microenvironment and the fecundability of women. These findings highlight the significance of assessing the vaginal microenvironment during pre-pregnancy health examinations. TWEETABLE ABSTRACT Women with a poor vaginal microenvironment were associated with a reduction in fecundability.
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Affiliation(s)
- X Hong
- Key Laboratory of Environmental Medicine and Engineering of Ministry of Education, Department of Epidemiology and Health Statistics, School of Public Health, Southeast University, Nanjing, Jiangsu, China
| | - J Zhao
- National Research Institute for Family Planning, Beijing, China.,National Human Genetic Resources Centre, Beijing, China
| | - X Zhu
- Key Laboratory of Environmental Medicine and Engineering of Ministry of Education, Department of Epidemiology and Health Statistics, School of Public Health, Southeast University, Nanjing, Jiangsu, China
| | - Q Dai
- National Research Institute for Family Planning, Beijing, China.,National Human Genetic Resources Centre, Beijing, China
| | - H Zhang
- National Research Institute for Family Planning, Beijing, China.,National Human Genetic Resources Centre, Beijing, China
| | - Y Xuan
- Key Laboratory of Environmental Medicine and Engineering of Ministry of Education, Department of Epidemiology and Health Statistics, School of Public Health, Southeast University, Nanjing, Jiangsu, China
| | - J Yin
- Key Laboratory of Environmental Medicine and Engineering of Ministry of Education, Department of Epidemiology and Health Statistics, School of Public Health, Southeast University, Nanjing, Jiangsu, China
| | - Yue Zhang
- National Research Institute for Family Planning, Beijing, China.,National Human Genetic Resources Centre, Beijing, China
| | - X Yang
- National Research Institute for Family Planning, Beijing, China.,National Human Genetic Resources Centre, Beijing, China
| | - S Fang
- The Mount Sinai Health System, New York, NY, USA
| | - Q Wang
- Department of Maternal and Child Health, National Health Commission of the People's Republic of China, Beijing, China
| | - H Shen
- Department of Maternal and Child Health, National Health Commission of the People's Republic of China, Beijing, China
| | - Yiping Zhang
- Department of Maternal and Child Health, National Health Commission of the People's Republic of China, Beijing, China
| | - D Yan
- Department of Maternal and Child Health, National Health Commission of the People's Republic of China, Beijing, China
| | - Y Wang
- National Research Institute for Family Planning, Beijing, China.,National Human Genetic Resources Centre, Beijing, China
| | - Z Peng
- National Research Institute for Family Planning, Beijing, China.,National Human Genetic Resources Centre, Beijing, China
| | - Ya Zhang
- National Research Institute for Family Planning, Beijing, China.,National Human Genetic Resources Centre, Beijing, China
| | - B Wang
- Key Laboratory of Environmental Medicine and Engineering of Ministry of Education, Department of Epidemiology and Health Statistics, School of Public Health, Southeast University, Nanjing, Jiangsu, China
| | - X Ma
- National Research Institute for Family Planning, Beijing, China.,National Human Genetic Resources Centre, Beijing, China
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18
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Jin A, Hong Y, Yang Y, Xu H, Huang X, Gao X, Gong X, Dai Q, Jiang L. FOXO3 Mediates Tooth Movement by Regulating Force-Induced Osteogenesis. J Dent Res 2021; 101:196-205. [PMID: 34157903 DOI: 10.1177/00220345211021534] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
The high prevalence of malocclusion and dentofacial malformations means that the demand for orthodontic treatments has been increasing rapidly. As the biological basis of orthodontic treatment, the mechanism of mechanical force-induced alveolar bone remodeling during orthodontic tooth movement (OTM) has become the key scientific issue of orthodontics. It has been demonstrated that bone mesenchymal stem cells (BMSCs) are crucial for bone remodeling and exhibit mechanical sensing properties. Mechanical force can promote osteoblastic differentiation of BMSCs and osteogenesis, but the key factor that mediates mechanical force-induced osteogenesis during OTM remains unclear. In this study, by performing reverse-phase protein arrays on BMSCs exposed to mechanical force, we found that the expression level of forkhead box O3 (FOXO3) was significantly upregulated during the mechanical force-induced osteoblastic differentiation of BMSCs. The number of FOXO3-positive cells was consistently higher on the OTM side as compared with the control side and accompanied by the enhancement of osteogenesis. Remarkably, inhibiting FOXO3 with repaglinide delayed OTM by severely impairing mechanical force-induced bone formation in vivo. Moreover, knockdown of FOXO3 effectively inhibited the mechanical force-induced osteoblastic differentiation of BMSCs, whereas the overexpression of FOXO3 enhanced this effect. Mechanistically, we revealed a novel regulatory model in which FOXO3 promoted osteocalcin transcription by activating its promoter in cooperation with runt-related transcription factor 2 (RUNX2). We collectively obtained the first evidence that FOXO3 is critical for OTM, where it responds to mechanical force and directly regulates downstream osteoblastic differentiation in an efficient manner.
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Affiliation(s)
- A Jin
- Center of Craniofacial Orthodontics, Department of Oral and Craniomaxillofacial Science, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, College of Stomatology, Shanghai Jiao Tong University, National Center for Stomatology, National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology, Shanghai, China
| | - Y Hong
- Center of Craniofacial Orthodontics, Department of Oral and Craniomaxillofacial Science, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, College of Stomatology, Shanghai Jiao Tong University, National Center for Stomatology, National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology, Shanghai, China
| | - Y Yang
- Center of Craniofacial Orthodontics, Department of Oral and Craniomaxillofacial Science, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, College of Stomatology, Shanghai Jiao Tong University, National Center for Stomatology, National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology, Shanghai, China
| | - H Xu
- Center of Craniofacial Orthodontics, Department of Oral and Craniomaxillofacial Science, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, College of Stomatology, Shanghai Jiao Tong University, National Center for Stomatology, National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology, Shanghai, China
| | - X Huang
- Center of Craniofacial Orthodontics, Department of Oral and Craniomaxillofacial Science, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, College of Stomatology, Shanghai Jiao Tong University, National Center for Stomatology, National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology, Shanghai, China
| | - X Gao
- Center of Craniofacial Orthodontics, Department of Oral and Craniomaxillofacial Science, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, College of Stomatology, Shanghai Jiao Tong University, National Center for Stomatology, National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology, Shanghai, China
| | - X Gong
- Center of Craniofacial Orthodontics, Department of Oral and Craniomaxillofacial Science, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, College of Stomatology, Shanghai Jiao Tong University, National Center for Stomatology, National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology, Shanghai, China
| | - Q Dai
- The 2nd Dental Center, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, College of Stomatology, Shanghai Jiao Tong University, National Center for Stomatology, National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology, Shanghai, China
| | - L Jiang
- Center of Craniofacial Orthodontics, Department of Oral and Craniomaxillofacial Science, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, College of Stomatology, Shanghai Jiao Tong University, National Center for Stomatology, National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology, Shanghai, China
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19
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Zheng LT, Chen J, Zhang L, Zhang Y, Xu L, Hou T, Zhen X, Dai Q, Liu H. Inhibition of neuroinflammation by MIF inhibitor 3-({[4-(4-methoxyphenyl)-6-methyl-2-pyrimidinyl]thio}1methyl)benzoic acid (Z-312). Int Immunopharmacol 2021; 98:107868. [PMID: 34153665 DOI: 10.1016/j.intimp.2021.107868] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2021] [Revised: 05/25/2021] [Accepted: 06/06/2021] [Indexed: 10/21/2022]
Abstract
Microglial overactivation-mediated neuroinflammation contributes greatly to the pathogenesis of neurodegenerative diseases, such as Parkinson's disease. Macrophage migration inhibitory factor (MIF) is a pleiotropic proinflammatory cytokine that is involved in the pathophysiology of various inflammatory diseases by inducing various proinflammatory cytokines. Compound 3-({[4-(4-methoxyphenyl)-6-methyl-2-pyrimidinyl]thio}methyl)benzoic acid (Z-312) is a novel small -molecule inhibitor of MIF tautomeric activity. In this study, we investigated the anti-inflammatory effects of Z-312 on liposaccharide (LPS)-induced neuroinflammation in vitro and in vivo. The results showed that Z-312 significantly decreased the production of nitric oxide (NO), interleukin (IL)-1β, tumor necrosis factor (TNF)-α and IL-6 in LPS-stimulated microglial cells. Mechanistically, nuclear translocation of the p65 subunit of nuclear factor (NF)-κB, degradation and phosphorylation of IκBα, NF-κB transcriptional activity and phosphorylation of p38 mitogen-activated protein kinase (MAPK) and JNK were markedly attenuated by pretreatment with Z-312 in BV-2 microglial cells. In addition, Z-312 suppressed the neurotoxic effects of cell culture medium of LPS-activated BV-2 microglia on cocultured mouse HT22 neuroblastoma cells. An in vivo study demonstrated that Z-312 markedly ameliorated microglial activation and subsequent DA neuron loss in an LPS-induced Parkinson's disease (PD) mouse model. These results suggest that MIF inhibitor Z-312 may be a promising neuroprotective agent for the treatment of neuroinflammation-mediated neurological diseases.
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Affiliation(s)
- Long-Tai Zheng
- Jiangsu Key Laboratory of Neuropsychiatric Diseases and College of Pharmaceutical Sciences, Soochow University, Suzhou, Jiangsu 215123, China.
| | - Jiaojiao Chen
- Jiangsu Key Laboratory of Neuropsychiatric Diseases and College of Pharmaceutical Sciences, Soochow University, Suzhou, Jiangsu 215123, China
| | - Li Zhang
- Jiangsu Key Laboratory of Neuropsychiatric Diseases and College of Pharmaceutical Sciences, Soochow University, Suzhou, Jiangsu 215123, China
| | - Yu Zhang
- Department of Pharmacy, Xiangyang NO.1 People's Hospital, Hubei University of Medicine, Xiangyang 441000, China
| | - Lei Xu
- Institute of Bioinformatics and Medical Engineering, Jiangsu University of Technology, Changzhou 213001, China
| | - Tingjun Hou
- College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, China
| | - Xuechu Zhen
- Jiangsu Key Laboratory of Neuropsychiatric Diseases and College of Pharmaceutical Sciences, Soochow University, Suzhou, Jiangsu 215123, China
| | - Qijun Dai
- Haian Hospital of Traditional Chinese Medicine, Haian 226600, China
| | - Hua Liu
- Haian Hospital of Traditional Chinese Medicine, Haian 226600, China
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20
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Pu Z, Ge F, Wang Y, Jiang Z, Zhu S, Qin S, Dai Q, Liu H, Hua H. Ginsenoside-Rg3 inhibits the proliferation and invasion of hepatoma carcinoma cells via regulating long non-coding RNA HOX antisense intergenic. Bioengineered 2021; 12:2398-2409. [PMID: 34130594 PMCID: PMC8806740 DOI: 10.1080/21655979.2021.1932211] [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] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Ginsenoside Rg3, a natural compound, has been reported to function as an anticancer agent for hepatoma carcinoma, while the mechanisms underlying the anticancer effects are not clear. Therefore, the objective of our study was to explore the impact of RG3 on cell migration and invasion by regulating the lncRNA HOX antisense intergenic (HOTAIR) expression involving PI3K/AKT signaling pathway. qRT-PCR was utilized to measure the mRNA expression of HOTAIR. Furthermore, HOTAIR overexpression plasmids were transfected to SMMC-7721 and SK-Hep-1 cells. Additionally, MTT assay was used to evaluate the proliferation of transfected cells. The scratch and transwell assays were used to determine the migration and invasion ability of the cell. The protein levels were determined with Western blot. lncRNA HOTAIR was overexpressed in SMMC-7721 and SK-Hep-1 cells. Ginsenoside-Rg3 reduced the level of lncRNA HOTAIR. Overexpressed lncRNA HOTAIR offset ginsenoside-Rg3 inhibited proliferation, migration and invasion of HCC cells. Furthermore, ginsenoside-Rg3 decreased the expression of p-AKT, p-PI3K, matrix metalloproteinase-2 (MMP2) and matrix metalloproteinase-9 (MMP9), which was reversed after the treatment of HOTAIR. LncRNA HOTAIR was overexpressed in SMMC-7721 cells. Ginsenoside-Rg3 could reduce the expression of lncRNA HOTAIR, resulting in the inhibited cell proliferation, migration and invasion. Furthermore, ginsenoside-Rg3 inhibited cell proliferation and invasion ability through the PI3k/AKT pathway. Thus, ginsenoside-Rg3 might be a potential and effective treatment for HCC.
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Affiliation(s)
- Zhongjian Pu
- Graduate School, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China.,Department of Oncology, Haian Hospital of Traditional Chinese Medicine, Haian, Jiangsu, China
| | - Fei Ge
- Department of Gastroenterology, Haian Hospital of Traditional Chinese Medicine, Haian, Jiangsu, China
| | - Yajun Wang
- Department of Oncology, Haian Hospital of Traditional Chinese Medicine, Haian, Jiangsu, China
| | - Ziyu Jiang
- Department of Oncology, Hospital of Integrated Traditional Chinese Medicine and Western Medicine Affiliated to Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China
| | - Shilin Zhu
- Department of Oncology, Haian Hospital of Traditional Chinese Medicine, Haian, Jiangsu, China
| | - Shukui Qin
- Department of Oncology, Bayi Hospital Affiliated to Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China
| | - Qijun Dai
- Department of Neurology, Haian Hospital of Traditional Chinese Medicine, Haian, Jiangsu, China
| | - Hua Liu
- Department of Orthopedics, Haian Hospital of Traditional Chinese Medicine, Haian, Jiangsu, China
| | - Haiqing Hua
- Department of Oncology, Bayi Hospital Affiliated to Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China
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21
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Dai Q, Zhao Y, Wang Q, Lyu T, Sun Y, Duan H, Liu M, Yang J, Wang H. [Portable Pulse Detection System Based on IoT]. Zhongguo Yi Liao Qi Xie Za Zhi 2021; 45:125-130. [PMID: 33825368 DOI: 10.3969/j.issn.1671-7104.2021.02.002] [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: 06/12/2023]
Abstract
Aiming at the current situation of high cost, huge volume, complex operation and difficulty in real application of pulse analyzer, this study designs and implements a portable pulse detection system based on IoT. The design utilizes Raspberry Pi 3B+, STM32 series MCU and cloud server to collect, store, display and recognize pulse signals at CUN, GUAN and CHI. The system is small in size and low in cost, which can be connected with cloud server through network to make full use of resources. The experimental results show that the recognition accuracy of the main feature points of the pulse signal by the portable pulse analyzer is higher than 97%, which has a broad prospect of development and application.
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Affiliation(s)
- Qijun Dai
- School of Electrical Engineering, Zhengzhou University, Zhengzhou, 450001
| | - Yuping Zhao
- China Academy of Chinese Medical Sciences, Beijing, 100700
| | - Qianqian Wang
- School of Electrical Engineering, Zhengzhou University, Zhengzhou, 450001
| | - Tao Lyu
- School of Electrical Engineering, Zhengzhou University, Zhengzhou, 450001
| | - Yulin Sun
- School of Electrical Engineering, Zhengzhou University, Zhengzhou, 450001
| | - Hufei Duan
- School of Electrical Engineering, Zhengzhou University, Zhengzhou, 450001
| | - Meili Liu
- School of Electrical Engineering, Zhengzhou University, Zhengzhou, 450001
| | - Jinna Yang
- School of Electrical Engineering, Zhengzhou University, Zhengzhou, 450001
| | - Honghao Wang
- School of Electrical Engineering, Zhengzhou University, Zhengzhou, 450001
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22
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Xu HY, Dai Q, Chen QX, Xiao F, Dai YH. MiR-802 inhibits the malignant biological behavior of oral squamous cell carcinoma by targeting proto-oncogene MET. Eur Rev Med Pharmacol Sci 2021; 24:4255-4262. [PMID: 32373961 DOI: 10.26355/eurrev_202004_21005] [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] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE Oral squamous cell carcinoma (OSCC) is one of the frequently occurring malignancies, but effective treatments are lacking. It is believed that exploring new molecular targets could help us to improve the treatment of OSCC. Therefore, we hope to find a new miRNA target to control OSCC. PATIENTS AND METHODS qPCR and Western blots were used to test the expressions of miR-802 and target gene in OSCC tissues and cell lines. Luciferase reporter assay was performed to check whether miR-802 could directly target MET. CCK-8, wound healing, cell invasion, colony formation, and tumor growth assays were used to determine the functions of miR-802 and MET in the malignant biological behavior of OSCC. RESULTS The results suggested that miR-802 was low expressed in OSCC tissues and cell lines. Overexpression of miR-802 inhibited the cell viability, colony formation, migration and invasion of Tca8113 and SCC9 cells, and tumor growth in vivo. It was predicted that miR-802 might target the mRNA of proto-oncogene MET. Overexpressing miR-802 suppressed the expression of wild-type MET at both protein and mRNA levels in Tca8113 and SCC9 cells. Moreover, the expression of MET was high and significantly correlated with the low expression of miR-802 in OSCC tissues. Overexpression of MET in Tca8113 and SCC9 cells reduced the tumor-suppressive effects, which was induced by miR-802 overexpression. CONCLUSIONS MiR-802 suppresses the malignant biological behavior of OSCC by targeting proto-oncogene MET. This work provides a new potential molecular target for treating OSCC.
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Affiliation(s)
- H-Y Xu
- Department of General Emergency, The Affiliated Stomatological Hospital of Nanchang University, The Key Laboratory of Oral Biomedicine, Jiangxi Province, Nanchang, China.
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23
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Dai Q, Xu Q, Xu P, Yu H, Ding Y. Neuroprotective Effects of Dilong on Cerebral Infarction in Rats. J BIOMATER TISS ENG 2020. [DOI: 10.1166/jbt.2020.2298] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Objective: The aim of the study was to investigate the effect of Dilong on cerebral infarction (CI) in a rat model. Methods: The neurological function of rats was evaluated with the mNSS. The expression of neurotrophic factors was determined using immunohistochemical method
and western blotting. Hematoxylin-eosin (H&E) staining was arranged to observe the histopathologic changes. The infarct volume of brain in rats was arranged through TTC stain. Apoptosis was investigated by terminal dUTP nick end labeling (TUNEL) staining. The expressions of oxidative stress
markers and pro-inflammatory cytokines were examined using ELISA assay. Results: Rats with CI manifested neurological impairment, elevated BDNF and NGF expression, augmented infarct area, enhanced neuronal apoptosis, increased antioxidant enzyme activities, decreased malondialdehyde
(MDA) content in brain tissues, and accelerated production of inflammatory cytokines. With the treatment of Dilong, the neurological impairment, neuronal apoptosis, oxidative damage and inflammatory injury were all attenuated. Conclusion: Dilong could ameliorate CI in rats by anti-oxidant
and antiinflammatory effects.
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24
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Chau J, Yadav M, Furqan M, Cady N, Mercer KN, Eastman E, Abu-Hejleh T, Shahi S, Dai Q, Zakharia Y, Garje R, Chan C, Weiner G, Mangalam A, Zhang J. OA03.04 Analysis of Patient Microbiome and Its Correlation to Immunotherapy Response and Toxicity in Lung Cancer. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.09.035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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25
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Chau J, Yadav M, Furqan M, Cady N, Mercer K, Eastman E, Abu-Hejleh T, Clamon G, Shahi S, Dai Q, Zakharia Y, Garje R, Chan C, Weiner G, Mangalam A, Zhang J. P2.04-18 Analysis of Patient Microbiome and Its Correlation to Immunotherapy Response and Toxicity in Lung Cancer. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.1523] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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26
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Ren A, Dai Q. P3782Nicotine promotes atherosclerosis development in apolipoprotein E-deficient mice through alpha 1 nicotinic acetylcholine receptor on RAW264.7 and MOVAS cells. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy563.p3782] [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] [Indexed: 11/12/2022] Open
Affiliation(s)
- A Ren
- Shanghai Jiao Tong University Affiliated First People's Hospital, Department of Cardiology, Shanghai, China People's Republic of
| | - Q Dai
- Shanghai Jiao Tong University Affiliated First People's Hospital, Department of Cardiology, Shanghai, China People's Republic of
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27
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Dai Q, Li L, Wang C, Lv C, Su Z, Chai F. Fabrication of a Flowerlike Ag Microsphere Film with Applications in Catalysis and as a SERS Substrate. Eur J Inorg Chem 2018. [DOI: 10.1002/ejic.201800119] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Qijun Dai
- Institute of Functional Material Chemistry; Faculty of Chemistry; Northeast Normal University; 130024 Changchun P. R. China
- Faculty of Chemistry; Faculty of Chemistry; Harbin Normal University; 150025 Harbin P. R. China
| | - Lu Li
- Institute of Functional Material Chemistry; Faculty of Chemistry; Northeast Normal University; 130024 Changchun P. R. China
| | - Chungang Wang
- Institute of Functional Material Chemistry; Faculty of Chemistry; Northeast Normal University; 130024 Changchun P. R. China
| | - Changli Lv
- Institute of Functional Material Chemistry; Faculty of Chemistry; Northeast Normal University; 130024 Changchun P. R. China
| | - Zhongmin Su
- Institute of Functional Material Chemistry; Faculty of Chemistry; Northeast Normal University; 130024 Changchun P. R. China
| | - Fang Chai
- Institute of Functional Material Chemistry; Faculty of Chemistry; Northeast Normal University; 130024 Changchun P. R. China
- Faculty of Chemistry; Faculty of Chemistry; Harbin Normal University; 150025 Harbin P. R. China
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28
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Jiang G, Li C, Huang X, Zhang X, Hu Y, Wang X, Wu D, Dai Q. The Effects of Threonine on Performance Parameters, Carcass Traits, Visceral Organ Indices and Serum Biochemical Parameters of Linwu Ducks, Aged 4 to 8 Weeks. Braz J Poult Sci 2018. [DOI: 10.1590/1806-9061-2017-0614] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- G Jiang
- Chinese Academy of Agricultural Sciences, P. R. China; Hunan Institute of Animal Science and Veterinary Medicine; Hunan Co-Innovation Center of Animal Production Safety, China
| | - C Li
- Hunan Institute of Animal Science and Veterinary Medicine; Hunan Co-Innovation Center of Animal Production Safety, China
| | - X Huang
- Hunan Institute of Animal Science and Veterinary Medicine; Hunan Co-Innovation Center of Animal Production Safety, China
| | - X Zhang
- Hunan Institute of Animal Science and Veterinary Medicine; Hunan Co-Innovation Center of Animal Production Safety, China
| | - Y Hu
- Hunan Co-Innovation Center of Animal Production Safety, China
| | - X Wang
- Hunan Institute of Animal Science and Veterinary Medicine; Hunan Co-Innovation Center of Animal Production Safety, China
| | - D Wu
- Chinese Academy of Agricultural Sciences, P. R. China
| | - Q Dai
- Chinese Academy of Agricultural Sciences, P. R. China; Hunan Institute of Animal Science and Veterinary Medicine; Hunan Co-Innovation Center of Animal Production Safety, China
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29
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Yang X, Yang Y, Zhou S, Gong X, Dai Q, Zhang P, Jiang L. Puerarin Stimulates Osteogenic Differentiation and Bone Formation Through the ERK1/2 and p38-MAPK Signaling Pathways. Curr Mol Med 2018; 17:488-496. [PMID: 29256352 DOI: 10.2174/1566524018666171219101142] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [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: 08/10/2017] [Revised: 12/12/2017] [Accepted: 12/14/2017] [Indexed: 11/22/2022]
Abstract
BACKGROUND Osteoporosis is a world-wide health problem, which leads to decreased bone strength and increased susceptibility to fractures. Puerarin, a phytoestrogen extracted from Pueraria lobata (Willd.) Ohwi, has been identified as a promising intervention for preventing bone loss and promoting bone regeneration. However, the underlying mechanisms for its anabolic action are still not clear. In the present study, we aimed to investigate the effect of puerarin on the osteogenic differentiation of bone marrow stromal cells (BMSCs) and the possible molecular mechanism mediating its action. METHODS Bone marrow stromal cells (BMSCs) and intragastric administration on ovariectomized(OVX) rats were used to study the anti-osteoporotic function of puerarin. The involvement of mitogen-activated protein kinase (MAPK) signaling pathways was determined. RESULTS Our results demonstrated that at optimal concentration, puerarin could promote osteogenic differentiation of BMSCs in vitro. This induction was mediated by MAPK signaling pathway. Further detailed study revealed that ERK1/2-Runx2 signaling pathway had more prominent effect than p38 signaling pathway in puerarin-induced differentiation of BMSCs toward the osteogenic phenotype. We also found that puerarin protected against reduction in bone mineral density and improved femur trabecular bone structure in ovariectomized rats. CONCLUSION Our findings revealed the functional mechanism of puerarin in promoting osteogenic differentiation which involved ERK1/2 and p38-MAPK pathway and provided experimental evidence for the potential application of puerarin for estrogen replacement therapy of osteoporosis.
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Affiliation(s)
- X Yang
- Center of Craniofacial Orthodontics, Department of Oral and Cranio-Maxillofacial Surgery, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, 639 Zhi Zao Ju Road, Shanghai 200011, China
| | - Y Yang
- Center of Craniofacial Orthodontics, Department of Oral and Cranio-Maxillofacial Surgery, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, 639 Zhi Zao Ju Road, Shanghai 200011, China
| | - S Zhou
- Center of Craniofacial Orthodontics, Department of Oral and Cranio-Maxillofacial Surgery, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, 639 Zhi Zao Ju Road, Shanghai 200011, China
| | - X Gong
- Center of Craniofacial Orthodontics, Department of Oral and Cranio-Maxillofacial Surgery, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, 639 Zhi Zao Ju Road, Shanghai 200011, China
| | - Q Dai
- Center of Craniofacial Orthodontics, Department of Oral and Cranio-Maxillofacial Surgery, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, 639 Zhi Zao Ju Road, Shanghai 200011, China.,Department of Pediatric Dentistry, Shanghai 9th People's Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology; National Clinical Research Center of Stomatology, Shanghai 200011, China
| | - P Zhang
- 2nd Dental Center, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, 639 Zhi Zao Ju Road, Shanghai 200011, China
| | - L Jiang
- Center of Craniofacial Orthodontics, Department of Oral and Cranio-Maxillofacial Surgery, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, 639 Zhi Zao Ju Road, Shanghai 200011, China
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30
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Liang Y, Zhuo Y, Lin Z, Jiang F, Dai Q, Lu J, Dong W, Zhu X, Han Z, Zhong W. Decreased Expression of MYPT1 Contributes to Tumor Angiogenesis and Poor Patient Prognosis in Human Prostate Cancer. Curr Mol Med 2018; 18:100-108. [PMID: 29974831 PMCID: PMC6302349 DOI: 10.2174/1566524018666180705111342] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2017] [Revised: 05/29/2018] [Accepted: 07/03/2018] [Indexed: 12/22/2022]
Abstract
BACKGROUND Our previous study demonstrated that Myosin Phosphatase Targeting subunit 1 (MYPT1) may function as a direct target of microRNA-30d, which promotes tumor angiogenesis and tumor growth of prostate cancer (PCa). Here, we aimed to investigate the clinical significance of MYPT1 expression and its functions in PCa. METHODS Roles of MYPT1 deregulation in tumor angiogenesis of PCa was determined in vitro and in vivo experiments. Expression patterns of MYPT1 and CD31 proteins were examined by immunohistochemistry and immunofluorescence, respectively. Associations of MYPT1/CD31 combination with various clinicopathological features and patients' prognosis of PCa were also statistically evaluated. RESULTS Through gain- and loss-of-function experiments, MYPT1 inhibited capillary tube formation of endothelial cells and in vivo tumor angiogenesis in a mouse model with the downregulation of VEGF and CD31 expression. In addition, MYPT1 expression was significantly decreased, while CD31 expression was dramatically increased in PCa tissues compared to benign prostate tissues. Notably, MYPT1 expression levels in PCa tissues were negatively correlated with that of CD31. Statistically, MYPT1-low/CD31- high expression was distinctly associated with high Gleason score, positive biochemical recurrence, and reduced overall survival of PCa patients. Moreover, PCa patients with MYPT1-low/CD31-high expression more frequently had shorter overall, biochemical recurrence-free and metastasis-free survivals. MYPT1/CD31 combination was identified as an independent factor to predict biochemical recurrence-free and metastasis-free survivals of PCa patients. CONCLUSIONS Our findings indicate that MYPT1 may inhibit angiogenesis and contribute favorable prognosis in PCa patients, implying that MYPT1 might be a potential drug candidate in anticancer therapy.
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Affiliation(s)
- Y Liang
- Department of Urology, Guangzhou First People's Hospital, The Second Affliated Hospital of South China University of Technology, South China University of Technology, Guangzhou, Guangdong 510180, China
- Department of Urology, Guangdong Key Laboratory of Clinical Molecular Medicine and Diagnostics, Guangzhou First People's Hospital, Guangzhou Medical University, Guangzhou, Guangdong 510180, China
| | - Y Zhuo
- Department of Urology, Guangzhou First People's Hospital, The Second Affliated Hospital of South China University of Technology, South China University of Technology, Guangzhou, Guangdong 510180, China
- Department of Urology, Guangdong Key Laboratory of Clinical Molecular Medicine and Diagnostics, Guangzhou First People's Hospital, Guangzhou Medical University, Guangzhou, Guangdong 510180, China
| | - Z Lin
- Department of Urology, Guangzhou First People's Hospital, The Second Affliated Hospital of South China University of Technology, South China University of Technology, Guangzhou, Guangdong 510180, China
- Department of Urology, The Second Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, Guangdong 510260, China
| | - F Jiang
- Department of Urology, Guangzhou First People's Hospital, The Second Affliated Hospital of South China University of Technology, South China University of Technology, Guangzhou, Guangdong 510180, China
- Department of Urology, Guangdong Key Laboratory of Clinical Molecular Medicine and Diagnostics, Guangzhou First People's Hospital, Guangzhou Medical University, Guangzhou, Guangdong 510180, China
| | - Q Dai
- Department of Urology, Guangzhou First People's Hospital, The Second Affliated Hospital of South China University of Technology, South China University of Technology, Guangzhou, Guangdong 510180, China
- Department of Urology, Guangdong Key Laboratory of Clinical Molecular Medicine and Diagnostics, Guangzhou First People's Hospital, Guangzhou Medical University, Guangzhou, Guangdong 510180, China
| | - J Lu
- Department of Urology, Guangdong Key Laboratory of Clinical Molecular Medicine and Diagnostics, Guangzhou First People's Hospital, Guangzhou Medical University, Guangzhou, Guangdong 510180, China
| | - W Dong
- Department of Urology, Guangdong Key Laboratory of Clinical Molecular Medicine and Diagnostics, Guangzhou First People's Hospital, Guangzhou Medical University, Guangzhou, Guangdong 510180, China
| | - X Zhu
- Department of Urology, Guangdong Key Laboratory of Clinical Molecular Medicine and Diagnostics, Guangzhou First People's Hospital, Guangzhou Medical University, Guangzhou, Guangdong 510180, China
| | - Z Han
- Department of Urology, Guangzhou First People's Hospital, The Second Affliated Hospital of South China University of Technology, South China University of Technology, Guangzhou, Guangdong 510180, China
- Department of Urology, Guangdong Key Laboratory of Clinical Molecular Medicine and Diagnostics, Guangzhou First People's Hospital, Guangzhou Medical University, Guangzhou, Guangdong 510180, China
| | - W Zhong
- Department of Urology, Guangzhou First People's Hospital, The Second Affliated Hospital of South China University of Technology, South China University of Technology, Guangzhou, Guangdong 510180, China
- Department of Urology, Guangdong Key Laboratory of Clinical Molecular Medicine and Diagnostics, Guangzhou First People's Hospital, Guangzhou Medical University, Guangzhou, Guangdong 510180, China
- Department of Urology, Huadu District People's Hospital, Southern Medical University, Guangzhou 510800, China
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Wang B, Fan B, Dai Q, Xu X, Jiang P, Zhu L, Dai H, Yao Z, Xu Z, Liu X. Fascin-1 Contributes to Neuropathic Pain by Promoting Inflammation in Rat Spinal Cord. Neurochem Res 2017; 43:287-296. [PMID: 29052088 DOI: 10.1007/s11064-017-2420-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [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: 07/28/2017] [Revised: 09/17/2017] [Accepted: 10/13/2017] [Indexed: 12/27/2022]
Abstract
Neuropathic pain is a complicated clinical syndrome caused by heterogeneous etiology. Despite the fact that the underlying mechanisms remain elusive, it is well accepted that neuroinflammation plays a critical role in the development of neuropathic pain. Fascin-1, an actin-bundling protein, has been proved to be involved in the processing of diverse biological events including cellular development, immunity, and tumor invasion etc. Recent studies have shown that Fascin-1 participates in antigen presentation and the regulation of pro-inflammatory agents. However, whether Fascin-1 is involved in neuropathic pain has not been reported. In the present study we examined the potential role of Fascin-1 by using a rodent model of chronic constriction injury (CCI). Our results showed that Fascin-1 increased rapidly in dorsal root ganglions (DRG) and spinal cord (SC) after CCI. The increased Fascin-1 widely expressed in DRG, however, it localized predominantly in microglia, seldom in neuron, and hardly in astrocyte in the SC. Intrathecal injection of Fascin-1 siRNA not only suppressed the activation of microglia and the release of pro-inflammatory mediators, but also attenuated the mechanical allodynia and thermal hyperalgesia induced by CCI.
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Affiliation(s)
- Binbin Wang
- Department of Anesthesiology, Affiliated Hospital of Nantong University, Nantong, 226001, Jiangsu, China
| | - Bingbing Fan
- Department of Radiology, Zhongshan Hospital and Shanghai Institute of Medical Imaging, Department of Medical Imaging, Shanghai Medical College, Fudan University, Shanghai, 200032, China
| | - Qijun Dai
- Nanjing University of Traditional Chinese Medicine Hanlin College Affiliated Hai'an Chinese Medicine Hospital, Nanjing University of Traditional Chinese Medicine, Haian, Jiangsu, China
| | - Xingguo Xu
- Department of Anesthesiology, Affiliated Hospital of Nantong University, Nantong, 226001, Jiangsu, China
| | - Peipei Jiang
- Nanjing University of Traditional Chinese Medicine Hanlin College Affiliated Hai'an Chinese Medicine Hospital, Nanjing University of Traditional Chinese Medicine, Haian, Jiangsu, China
| | - Lin Zhu
- Nanjing University of Traditional Chinese Medicine Hanlin College Affiliated Hai'an Chinese Medicine Hospital, Nanjing University of Traditional Chinese Medicine, Haian, Jiangsu, China
| | - Haifeng Dai
- Nanjing University of Traditional Chinese Medicine Hanlin College Affiliated Hai'an Chinese Medicine Hospital, Nanjing University of Traditional Chinese Medicine, Haian, Jiangsu, China
| | - Zhigang Yao
- Nanjing University of Traditional Chinese Medicine Hanlin College Affiliated Hai'an Chinese Medicine Hospital, Nanjing University of Traditional Chinese Medicine, Haian, Jiangsu, China
| | - Zhongling Xu
- Department of Anesthesiology, Affiliated Hospital of Nantong University, Nantong, 226001, Jiangsu, China.
| | - Xiaojuan Liu
- Department of Pathogen Biology, Medical College, Nantong University, Nantong, 2266001, Jiangsu, China.
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Yin L, Dai Q, Jiang P, Zhu L, Dai H, Yao Z, Liu H, Ma X, Qu L, Jiang J. Manganese exposure facilitates microglial JAK2-STAT3 signaling and consequent secretion of TNF-a and IL-1β to promote neuronal death. Neurotoxicology 2017; 64:195-203. [PMID: 28385490 DOI: 10.1016/j.neuro.2017.04.001] [Citation(s) in RCA: 52] [Impact Index Per Article: 7.4] [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: 11/29/2016] [Revised: 04/02/2017] [Accepted: 04/03/2017] [Indexed: 12/31/2022]
Abstract
Chronic manganese (Mn) exposure can lead to neuroinflammation and neurological deficit, which resemble idiopathic Parkinson's disease (IPD). However, the precise mechanisms underlying Mn exposure-induced neurotoxicity remain incompletely understood. Microglia can become hyperactivated and plays a vital role in neuroinflammation and consequent neurodegeneration in response to pro-inflammatory stimuli. In the present study, we found that HAPI microglial cells exhibited increased secretion of pro-inflammatory TNF-α and IL-1β following Mn exposure in dose- and time-dependent manners. In addition, we showed that Mn exposure could trigger the activation of JAK2/STAT3 signaling pathway in microglia. Notably, Mn-induced secretion of TNF-α and IL-1β was significantly attenuated by the treatment of JAK2 inhibitor. Finally, through incubating PC12 neuronal cells with Mn-treated microglial conditioned medium, we demonstrated that Mn-induced secretion of microglial TNF-α and IL-1β facilitated neuronal apoptosis. Thus, we speculate that Mn exposure might trigger JAK2-STAT3 signal pathway in microglia, leading to resultant neuroinflammation and neuronal loss.
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Affiliation(s)
- Lifeng Yin
- Department of Occupational Medicine and Environmental Toxicology, School of Public Health, Nantong University, Nantong, Jiangsu 226001, People's Republic of China
| | - Qijun Dai
- Department of Encephalopathy, Traditional Chinese Medicine Hospital of Haian County Affiliated Hospital, Nanjing University of Chinese Medicine of Hanlin College, Nantong, Jiangsu 226600, People's Republic of China
| | - Peipei Jiang
- Department of Encephalopathy, Traditional Chinese Medicine Hospital of Haian County Affiliated Hospital, Nanjing University of Chinese Medicine of Hanlin College, Nantong, Jiangsu 226600, People's Republic of China
| | - Lin Zhu
- Department of Encephalopathy, Traditional Chinese Medicine Hospital of Haian County Affiliated Hospital, Nanjing University of Chinese Medicine of Hanlin College, Nantong, Jiangsu 226600, People's Republic of China
| | - Haifeng Dai
- Department of Encephalopathy, Traditional Chinese Medicine Hospital of Haian County Affiliated Hospital, Nanjing University of Chinese Medicine of Hanlin College, Nantong, Jiangsu 226600, People's Republic of China
| | - Zhigang Yao
- Department of Encephalopathy, Traditional Chinese Medicine Hospital of Haian County Affiliated Hospital, Nanjing University of Chinese Medicine of Hanlin College, Nantong, Jiangsu 226600, People's Republic of China
| | - Hua Liu
- Department of Encephalopathy, Traditional Chinese Medicine Hospital of Haian County Affiliated Hospital, Nanjing University of Chinese Medicine of Hanlin College, Nantong, Jiangsu 226600, People's Republic of China
| | - Xiaoping Ma
- Department of Encephalopathy, Traditional Chinese Medicine Hospital of Haian County Affiliated Hospital, Nanjing University of Chinese Medicine of Hanlin College, Nantong, Jiangsu 226600, People's Republic of China
| | - Lianxia Qu
- Department of Encephalopathy, Traditional Chinese Medicine Hospital of Haian County Affiliated Hospital, Nanjing University of Chinese Medicine of Hanlin College, Nantong, Jiangsu 226600, People's Republic of China.
| | - Junkang Jiang
- Department of Occupational Medicine and Environmental Toxicology, School of Public Health, Nantong University, Nantong, Jiangsu 226001, People's Republic of China.
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Abstract
ObjectiveThe difficulties in the clinical antidepressant treatment lead to the pursuing of more effective methods such as transcranial magnetic stimulation (TMS). Mixed findings from DLPFC targeted TMS result in the exploration of optimal stimulation location. Disturbed function of obitofrontal cortex (OFC) has been indicated in depression, which is involving in the remission of depression. However, whether it could be a more specific treating target is not tested. Simultaneously, disturbed reward network (RN) has been confirmed in depression, however, whether this could be improved by TMS treatment remains unclear.MethodsFourteen patients with major depressive disorder (MDD) were allocated in a four-week course of OFC targeted TMS. Motivated by the literature, before and after the treatment, the function connectivity of RN with the seed of ventral striatum was conducted. The results were also compared with the data from 33 healthy controls.ResultsThe OFC targeted TMS improved the clinical depression significantly and enhanced the function connectivity within the RN effectively. Specifically, lower baseline dorsolateral striatum connectivity predicted strong therapeutic effect of TMS on depression, while lower baseline insula connectivity predicted weak therapeutic effect on depression.ConclusionsThe findings offer the first experimental evidence of the therapeutic effect of OFC targeted TMS on clinical depression, enhanced function connectivity within RN might be the potential neural mechanism (Fig. 1). Lower dorsolateral striatum connection might be a reliable neural biomarker of strong responding for TMS treatment, which helps to identify the patients who will be cured by TMS most effectively.
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Dai Q, Yang G, Hu C, Wang L, Liu K, Guang Y, Zhang R, Xu S, Liu B, Yang Y, Feng Z. The alienation of affection toward parents and influential factors in Chinese left-behind children. Eur Psychiatry 2016; 39:114-122. [PMID: 28006677 DOI: 10.1016/j.eurpsy.2016.07.008] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/17/2016] [Revised: 07/26/2016] [Accepted: 07/31/2016] [Indexed: 10/20/2022] Open
Abstract
OBJECTIVE Although alienation toward parents is important for children (for current mental health status or later interpersonal relationships in adulthood), it is undervalued and even lacks a standardized tool of assessment. Moreover, the large number of left-behind children in China is a cause of public concern. However, their experienced alienation toward their parents remains unclear, which may be important for early detection or intervention for behavioral problems in this population. Hence, the current study aimed to develop an alienation inventory for children and then use it to investigate the experienced alienation toward parents in Chinese left-behind children. METHODS Two studies were carried out. Study 1 was designed to develop a standard inventory of alienation toward parents (IAP). In study 2, 8361 children and adolescents (6704 of them were left-behind status) of the Chongqing area, aged between 8 and 19 years old, were recruited for investigation. All participants were surveyed with a standard sociodemographic questionnaire, children's cognitive style questionnaire, children's depression inventory, adolescent self-rating life events checklist, and newly built IAP in study 1. RESULTS In study 1, we developed a two-component (communication and emotional distance) and 18-item (9 items for maternal or paternal form, respectively) IAP questionnaire. In study 2, exploratory factor analysis indicated an expected two-factor structure of IAP, which was confirmed by confirmatory factor analysis. The Cronbach's alpha coefficients showed a good reliability (0.887 and 0.821 for maternal and paternal form, respectively). Children with absent mother experienced the highest alienation toward parents. Boys as well as children aged 8-10 years old experienced higher alienation toward parents. Poor communication with parents (sparse or no connection), level of left-behind condition (parents divorced, been far away from parents), and psychosocial vulnerability (stressful life events, negative cognitive style) were risk factors of alienation toward parents. CONCLUSIONS The current study develops a two-factor (communication and emotional distance) IAP, which offers a reliable tool to assess experienced alienation of affection toward parents in children aged between 8 and 19 years old. Our result is the first investigation of experienced alienation and potential influential factors in Chinese left-behind children. The findings that children with absent mother experience higher alienation toward parents, as well as three recognized risk factors for alienation of affection toward parents (poor communication with absent parents, worse left-behind condition, and psychosocial vulnerability), give valuable guidance for parents who intend to leave or who are already leaving as well as for government policymaking.
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Affiliation(s)
- Q Dai
- The Third Military Medical University, Department of nursing, 400038 Chong qing, China
| | - G Yang
- The Third Military Medical University, Department of psychology, 400038 Chong qing, China
| | - C Hu
- Chongqing Normal University, Key applied psychology lab, 401331 Chongqing, China
| | - L Wang
- The Third Military Medical University, Department of psychology, 400038 Chong qing, China
| | - K Liu
- The Third Military Medical University, Department of psychology, 400038 Chong qing, China
| | - Y Guang
- The Third Military Medical University, Department of psychology, 400038 Chong qing, China
| | - R Zhang
- The Third Military Medical University, Department of psychology, 400038 Chong qing, China
| | - S Xu
- The Normal University of Gui Zhou, Department of psychology, Gui Zhou, China
| | - B Liu
- The Third Military Medical University, Department of psychology, 400038 Chong qing, China
| | - Y Yang
- Chongqing Foundation for Poverty Alleviation, 400020 Chongqing, China
| | - Z Feng
- The Third Military Medical University, Department of psychology, 400038 Chong qing, China.
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Zhang P, Dai Q, Ouyang N, Yang X, Wang J, Zhou S, He N, Fang B, Jiang L. Mechanical Strain Promotes Osteogenesis of BMSCs from Ovariectomized Rats via the ERK1/2 but not p38 or JNK-MAPK Signaling Pathways. Curr Mol Med 2016; 15:780-9. [PMID: 26299771 DOI: 10.2174/1566524015666150824143830] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2015] [Revised: 07/23/2015] [Accepted: 08/19/2015] [Indexed: 11/22/2022]
Abstract
Osteoporosis has become a world-wide health problem. As a promising intervention, mechanical strain is considered to be an important factor in bone remodeling. However, the underlying mechanisms are still not clarified clearly. In the present study, we aim to investigate the possible mechanism by which mechanical stimulation induces osteogenic differentiation of bone mesenchymal stem cells (BMSCs) from ovariectomized rats (OVX BMSCs). The results demonstrated that intermittent mechanical strain (IMS) promoted osteogenic differentiation of OVX BMSCs by activating Runt-related transcription factor 2 (Runx2). When the extracellular regulated kinase1/2-mitogen activated protein kinases (ERK1/2-MAPK) signaling pathway was blocked, the osteogenenic effects of IMS were diminished; while blocking of the p38-MAPK signaling pathway had little effect on subsequent osteogenic events. In addition, the phosphorylation level of JNK was not affected by IMS. Our results indicated that strain-induced osteogenic differentiation of OVX BMSCs may take effect via ERK1/2-MAPK not p38 or c-Jun N-terminal (JNK)-MAPK signaling pathway. These findings may have implications for physical treatment of osteoporosis in vitro.
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Affiliation(s)
| | | | | | | | | | | | | | - B Fang
- Center of Craniofacial Orthodontics, Department of Oral and Cranio-maxillofacial Science, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai Key Laboratory of Stomatology, No. 639 Zhi- Zao-Ju Road, Shanghai 200011, P.R. China.
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Zhao J, Qi X, Dai Q, He X, Dweep H, Guo M, Luo Y, Gretz N, Luo H, Huang K, Xu W. Toxicity study of ochratoxin A using HEK293 and HepG2 cell lines based on microRNA profiling. Hum Exp Toxicol 2016; 36:8-22. [PMID: 26893291 DOI: 10.1177/0960327116632048] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
Ochratoxin A (OTA) induced DNA damage, cytotoxicity, and apoptosis in mammalian cell lines. Micro RNAs (miRNAs) are involved in physiological and developmental processes and contribute to cancer development and progression. In our study, high-throughput miRNA profiling and Kyoto Encyclopedia of Genes and Genomes analysis were applied to comparatively study the toxicity of OTA in HEK293 cells and HepG2 cells treated with 25 μM OTA for 24 h. In these two cells, the same changing miRNAs were mostly related to signal transduction pathways, whereas the different changing miRNAs were mostly related to human cancer pathways. DGCR8, Dicer1, and Drosha were significantly suppressed in HEK293 cells, indicating an impairment of miRNA biogenesis. The damage seemed more extensive in HEK293 cells. Cell models and in vivo models were also compared. Many miRNAs in vitro were markedly different from those in vivo; however, OTA toxicity was observed both in vitro and in vivo. The classification of deregulated pathways is similar. The biogenesis of miRNA was impaired in both lines. In conclusion, deregulated miRNAs in vitro are mostly related to human cancer and signal transduction pathways. The deregulated pathways in vivo are similar to those in vitro.
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Affiliation(s)
- J Zhao
- 1 Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, China
| | - X Qi
- 1 Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, China
| | - Q Dai
- 1 Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, China
| | - X He
- 1 Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, China
| | - H Dweep
- 2 Medical Research Center, Medical Faculty Mannheim, University of Heidelberg, Mannheim, Germany
| | - M Guo
- 1 Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, China
| | - Y Luo
- 1 Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, China
| | - N Gretz
- 2 Medical Research Center, Medical Faculty Mannheim, University of Heidelberg, Mannheim, Germany
| | - H Luo
- 3 State Key Laboratory of Agrobiotechnology, College of Biological Sciences, China Agricultural University, Beijing, China
| | - K Huang
- 1 Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, China
| | - W Xu
- 1 Beijing Advanced Innovation Center for Food Nutrition and Human Health, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, China.,4 Beijing Laboratory for Food Quality and Safety, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, China
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Yang YJ, Li XL, Xue Y, Zhang CX, Wang Y, Hu X, Dai Q. Bone marrow cells differentiation into organ cells using stem cell therapy. Eur Rev Med Pharmacol Sci 2016; 20:2899-2907. [PMID: 27424992] [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: 06/06/2023]
Abstract
Bone marrow cells (BMC) are progenitors of bone, cartilage, skeletal tissue, the hematopoiesis-supporting stroma and adipocyte cells. BMCs have the potential to differentiate into neural cells, cardiac myocytes, liver hepatocytes, chondrocytes, renal, corneal, blood, and myogenic cells. The bone marrow cell cultures from stromal and mesenchymal cells are called multipotent adult progenitor cells (MAPCs). MAPCs can differentiate into mesenchymal cells, visceral mesoderm, neuroectoderm and endoderm in vitro. It has been shown that the stem cells derived from bone marrow cells (BMCs) can regenerate cardiac myocytes after myocardial infarction (MI). Adult bone marrow mesenchymal stem cells have the ability to regenerate neural cells. Neural stem/progenitor cells (NS/PC) are ideal for treating central nervous system (CNS) diseases, such as Alzheimer's, Parkinson's and Huntington disease. However, there are important ethical issues about the therapeutic use of stem cells. Neurons, cardiac myocytes, hepatocytes, renal cells, blood cells, chondrocytes and adipocytes regeneration from BMCs are very important in disease control. It is known that limbal epithelial stem cells in the cornea can repair the eye sight and remove symptoms of blindness. Stem cell therapy (SCT) is progressing well in animal models, but the use of SCT in human remains to be explored further.
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Affiliation(s)
- Y-J Yang
- Department of Hematology, Xuzhou Central Hospital, Xuzhou, Jiangsu, China.
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Li YJ, Dai Q, Deng CY, Sun RX, Zheng J, Chen Z, Sun Y, Wang H, Yuan ZD, Fang C, Deng ZG. Field homogeneity improvement of maglev NdFeB magnetic rails from joints. Springerplus 2016; 5:372. [PMID: 27066380 PMCID: PMC4807185 DOI: 10.1186/s40064-016-1965-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/09/2015] [Accepted: 03/02/2016] [Indexed: 11/10/2022]
Abstract
An ideal magnetic rail should provide a homogeneous magnetic field along the longitudinal direction to guarantee the reliable friction-free operation of high temperature superconducting (HTS) maglev vehicles. But in reality, magnetic field inhomogeneity may occur due to lots of reasons; the joint gap is the most direct one. Joint gaps inevitably exist between adjacent segments and influence the longitudinal magnetic field homogeneity above the rail since any magnetic rails are consisting of many permanent magnet segments. To improve the running performance of maglev systems, two new rail joints are proposed based on the normal rail joint, which are named as mitered rail joint and overlapped rail joint. It is found that the overlapped rail joint has a better effect to provide a competitive homogeneous magnetic field. And the further structure optimization has been done to ensure maglev vehicle operation as stable as possible when passing through those joint gaps. The results show that the overlapped rail joint with optimal parameters can significantly reduce the magnetic field inhomogeneity comparing with the other two rail joints. In addition, an appropriate gap was suggested when balancing the thermal expansion of magnets and homogenous magnetic field, which is considered valuable references for the future design of the magnetic rails.
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Affiliation(s)
- Y J Li
- Applied Superconductivity Laboratory, State Key Laboratory of Traction Power, Southwest Jiaotong University, Chengdu, 610031 People's Republic of China ; School of Information Science and Technology, Southwest Jiaotong University, Chengdu, 610031 People's Republic of China
| | - Q Dai
- School of Information Science and Technology, Southwest Jiaotong University, Chengdu, 610031 People's Republic of China
| | - C Y Deng
- School of Information Science and Technology, Southwest Jiaotong University, Chengdu, 610031 People's Republic of China
| | - R X Sun
- Applied Superconductivity Laboratory, State Key Laboratory of Traction Power, Southwest Jiaotong University, Chengdu, 610031 People's Republic of China
| | - J Zheng
- Applied Superconductivity Laboratory, State Key Laboratory of Traction Power, Southwest Jiaotong University, Chengdu, 610031 People's Republic of China
| | - Z Chen
- School of Mechanical Engineering, Southwest Jiaotong University, Chengdu, 610031 People's Republic of China
| | - Y Sun
- School of Mechanical Engineering, Southwest Jiaotong University, Chengdu, 610031 People's Republic of China
| | - H Wang
- School of Mechanical Engineering, Southwest Jiaotong University, Chengdu, 610031 People's Republic of China
| | - Z D Yuan
- School of Mechanical Engineering, Southwest Jiaotong University, Chengdu, 610031 People's Republic of China
| | - C Fang
- School of Electrical Engineering, Southwest Jiaotong University, Chengdu, 610031 People's Republic of China
| | - Z G Deng
- Applied Superconductivity Laboratory, State Key Laboratory of Traction Power, Southwest Jiaotong University, Chengdu, 610031 People's Republic of China
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Dou C, Ding N, Xing J, Zhao C, Kang F, Hou T, Quan H, Chen Y, Dai Q, Luo F, Xu J, Dong S. Dihydroartemisinin attenuates lipopolysaccharide-induced osteoclastogenesis and bone loss via the mitochondria-dependent apoptosis pathway. Cell Death Dis 2016; 7:e2162. [PMID: 27031959 PMCID: PMC4823966 DOI: 10.1038/cddis.2016.69] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [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: 11/07/2015] [Revised: 01/27/2016] [Accepted: 03/02/2016] [Indexed: 12/19/2022]
Abstract
Dihydroartemisinin (DHA) is a widely used antimalarial drug isolated from the plant Artemisia annua. Recent studies suggested that DHA has antitumor effects utilizing its reactive oxygen species (ROS) yielding mechanism. Here, we reported that DHA is inhibitory on lipopolysaccharide (LPS)-induced osteoclast (OC) differentiation, fusion and bone-resorption activity in vitro. Intracellular ROS detection revealed that DHA could remarkably increase ROS accumulation during LPS-induced osteoclastogenesis. Moreover, cell apoptosis was also increased by DHA treatment. We found that DHA-activated caspase-3 increased Bax/Bcl-2 ratio during LPS-induced osteoclastogenesis. Meanwhile, the translocation of apoptotic inducing factor (AIF) and the release of cytochrome c from the mitochondria into the cytosol were observed, indicating that ROS-mediated mitochondrial dysfunction is crucial in DHA-induced apoptosis during LPS-induced osteoclastogenesis. In vivo study showed that DHA treatment decreased OC number, prevents bone loss, rescues bone microarchitecture and restores bone strength in LPS-induced bone-loss mouse model. Together, our findings indicate that DHA is protective against LPS-induced bone loss through apoptosis induction of osteoclasts via ROS accumulation and the mitochondria-dependent apoptosis pathway. Therefore, DHA may be considered as a new therapeutic candidate for treating inflammatory bone loss.
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Affiliation(s)
- C Dou
- Department of Orthopedics, Southwest Hospital, Third Military Medical University, Chongqing 400038, China.,Department of Biomedical Materials Science, School of Biomedical Engineering, Third Military Medical University, Chongqing 400038, China
| | - N Ding
- Department of Orthopedics, Southwest Hospital, Third Military Medical University, Chongqing 400038, China
| | - J Xing
- Department of Orthopedics, Southwest Hospital, Third Military Medical University, Chongqing 400038, China
| | - C Zhao
- Department of Biomedical Materials Science, School of Biomedical Engineering, Third Military Medical University, Chongqing 400038, China
| | - F Kang
- Department of Biomedical Materials Science, School of Biomedical Engineering, Third Military Medical University, Chongqing 400038, China
| | - T Hou
- Department of Orthopedics, Southwest Hospital, Third Military Medical University, Chongqing 400038, China
| | - H Quan
- Department of Biomedical Materials Science, School of Biomedical Engineering, Third Military Medical University, Chongqing 400038, China
| | - Y Chen
- Department of Biomedical Materials Science, School of Biomedical Engineering, Third Military Medical University, Chongqing 400038, China
| | - Q Dai
- Department of Orthopedics, Southwest Hospital, Third Military Medical University, Chongqing 400038, China
| | - F Luo
- Department of Orthopedics, Southwest Hospital, Third Military Medical University, Chongqing 400038, China
| | - J Xu
- Department of Orthopedics, Southwest Hospital, Third Military Medical University, Chongqing 400038, China
| | - S Dong
- Department of Biomedical Materials Science, School of Biomedical Engineering, Third Military Medical University, Chongqing 400038, China.,China Orthopedic Regenerative Medicine Group, Chongqing 400038, China
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41
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Wang Y, Peng L, Dai Q, Ye L, Chen L, Chen Q, Lai C, Jiang Y, Zhang G. Clinical value to quantitate hematogones in Chinese childhood acute lymphoblastic leukemia by flow cytometry analysis. Int J Lab Hematol 2016; 38:246-55. [PMID: 26991766 DOI: 10.1111/ijlh.12476] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2015] [Accepted: 01/06/2016] [Indexed: 12/23/2022]
Affiliation(s)
- Y. Wang
- Department of Laboratory Medicine; West China Second University Hospital; Sichuan University; Chengdu Sichuan China
| | - L. Peng
- Department of Laboratory Medicine; West China Second University Hospital; Sichuan University; Chengdu Sichuan China
| | - Q. Dai
- Department of Laboratory Medicine; West China Second University Hospital; Sichuan University; Chengdu Sichuan China
| | - L. Ye
- Department of Laboratory Medicine; West China Second University Hospital; Sichuan University; Chengdu Sichuan China
| | - L. Chen
- Department of Laboratory Medicine; West China Second University Hospital; Sichuan University; Chengdu Sichuan China
| | - Q. Chen
- Department of Laboratory Medicine; West China Second University Hospital; Sichuan University; Chengdu Sichuan China
| | - C. Lai
- Department of Laboratory Medicine; West China Second University Hospital; Sichuan University; Chengdu Sichuan China
| | - Y. Jiang
- Department of Laboratory Medicine; West China Second University Hospital; Sichuan University; Chengdu Sichuan China
| | - G. Zhang
- Department of Laboratory Medicine; West China Second University Hospital; Sichuan University; Chengdu Sichuan China
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Liu TJ, Wang EB, Dai Q, Zhang LJ, Li QW, Zhao Q. Open reduction and internal fixation for the treatment of fractures of the lateral humeral condyle with an early delayed presentation in children. Bone Joint J 2016; 98-B:244-8. [PMID: 26850431 DOI: 10.1302/0301-620x.98b2.34429] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Aims The treatment of late presenting fractures of the lateral humeral condyle in children remains controversial. Methods We report on the outcome for 16 children who presented with a fracture of the lateral humeral epicondyle at a mean of 7.4 weeks (3 to 15.6) after injury and were treated surgically. Results The mean follow-up was four years (1.1 to 8.9), at which time the mean age of the patients was 8.7 years (3.2 to 17.8). The mean Dhillon functional score improved from 3.3 to 5.6 and the mean overall scores improved from 5.6 to 8.5. A total of seven patients had a fishtail deformity and eight had partial lateral epiphyseal closure. None had avascular necrosis. MRI showed an abnormal cartilage signal, incongruence of the joint surface and partial premature closure of the lateral physis in four patients. Discussion Neither age at the time of injury, the time interval between injury and operation, nor the pre-operative function were correlated with the incidence of complications. These results support the use of internal fixation for children with a lateral humeral epicondylar fracture with a delayed presentation. Take home message: Open reduction and internal fixation yielded a satisfactory outcome within 16 weeks in children with a lateral humeral epicondylar fracture with a delayed presentation. Cite this article: Bone Joint J 2016;98-B:244–8.
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Affiliation(s)
- T. J. Liu
- Shengjing Hospital of China Medical University, 36
Sanhao Street, Shenyang, 110004, China
| | - E. B. Wang
- Shengjing Hospital of China Medical University, 36
Sanhao Street, Shenyang, 110004, China
| | - Q. Dai
- Shengjing Hospital of China Medical University, 36
Sanhao Street, Shenyang, 110004, China
| | - L. J. Zhang
- Shengjing Hospital of China Medical University, 36
Sanhao Street, Shenyang, 110004, China
| | - Q. W. Li
- Shengjing Hospital of China Medical University, 36
Sanhao Street, Shenyang, 110004, China
| | - Q. Zhao
- Shengjing Hospital of China Medical University, 36
Sanhao Street, Shenyang, 110004, China
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Wu S, Dai Q, Xu J, Sheng W, Xu Q, Zhong L. Combined effect of traditional Chinese and Western medicine on inflammatory factors in patients with diabetes-induced xerophthalmia. Genet Mol Res 2016; 15:gmr-15-gmr15049030. [DOI: 10.4238/gmr15049030] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Kiage JN, Sampson UKA, Lipworth L, Fazio S, Mensah GA, Yu Q, Munro H, Akwo EA, Dai Q, Blot WJ, Kabagambe EK. Polyunsaturated fat intake and mortality in non-statin users, is there an independent relationship? The authors reply. Nutr Metab Cardiovasc Dis 2016; 26:78-79. [PMID: 26552741 PMCID: PMC4807849 DOI: 10.1016/j.numecd.2015.09.003] [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] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/20/2015] [Accepted: 09/07/2015] [Indexed: 11/20/2022]
Affiliation(s)
- J N Kiage
- Division of Epidemiology, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN 37203, USA
| | - U K A Sampson
- Center for Translation Research and Implementation Science (CTRIS), National Heart, Lung, and Blood Institute, Bethesda, MD 30105, USA
| | - L Lipworth
- Division of Epidemiology, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN 37203, USA; Vanderbilt Center for Translational and Clinical Cardiovascular Research, Vanderbilt University Medical Center, Nashville, TN 37203, USA
| | - S Fazio
- The Knight Cardiovascular Institute, Center for Preventive Cardiology, Oregon Health and Science University, Portland, OR 97239, USA
| | - G A Mensah
- Center for Translation Research and Implementation Science (CTRIS), National Heart, Lung, and Blood Institute, Bethesda, MD 30105, USA
| | - Q Yu
- Westat, Rockville, MD 20850, USA
| | - H Munro
- The International Epidemiology Institute, Rockville, MD 20850, USA
| | - E A Akwo
- Division of Epidemiology, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN 37203, USA; Vanderbilt Center for Translational and Clinical Cardiovascular Research, Vanderbilt University Medical Center, Nashville, TN 37203, USA
| | - Q Dai
- Division of Epidemiology, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN 37203, USA
| | - W J Blot
- Division of Epidemiology, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN 37203, USA; The International Epidemiology Institute, Rockville, MD 20850, USA
| | - E K Kabagambe
- Division of Epidemiology, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN 37203, USA; Vanderbilt Center for Translational and Clinical Cardiovascular Research, Vanderbilt University Medical Center, Nashville, TN 37203, USA.
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45
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Kiage JN, Sampson UKA, Lipworth L, Fazio S, Mensah GA, Yu Q, Munro H, Akwo EA, Dai Q, Blot WJ, Kabagambe EK. Intake of polyunsaturated fat in relation to mortality among statin users and non-users in the Southern Community Cohort Study. Nutr Metab Cardiovasc Dis 2015; 25:1016-1024. [PMID: 26298428 PMCID: PMC4637133 DOI: 10.1016/j.numecd.2015.07.006] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/23/2015] [Revised: 07/17/2015] [Accepted: 07/20/2015] [Indexed: 12/25/2022]
Abstract
BACKGROUND AND AIMS Consumption of polyunsaturated fatty acids (PUFA), especially the n3-series, may protect against cardiovascular disease (CVD), but recent randomized studies have failed to demonstrate these benefits. One of the prevailing hypotheses is that PUFA intake may not confer benefits beyond those provided by statins, but studies comparing statin users to non-users with regard to effects of PUFA are lacking. METHODS AND RESULTS Black and white men and women (n = 69,559) in the Southern Community Cohort Study were studied. Cox regression models adjusting for age, sex, race, BMI, recruitment site, education, income, smoking, diabetes, and dietary variables were used. RESULTS At baseline the mean ± SD age was 52 ± 9 years, 60% of participants were women, 54% had hypertension and 16% used statins. We observed modest inverse associations between n3-PUFA and n6-PUFA intake with mortality among non-statin users but not among statin users. In adjusted analyses, the HRs (95% CIs) for all-cause mortality (6,396 deaths over a median of 6.4 years) comparing the highest to the lowest quintile were 0.90 (0.82-1.00) for n3-PUFA and 0.80 (0.70-0.92) for n6-PUFA among non-statin users, whereas they were 1.06 (0.87-1.28) and 0.96 (0.78-1.19) for n3-PUFA and n6-PUFA, respectively, among statin users. CONCLUSIONS Our results suggest potential benefits of PUFA consumption on mortality which are only apparent in the absence of statin therapy. It seems prudent to consider the potential benefit of PUFA consumption in the primary prevention of CVD among patients who are not candidates for statin therapy but are at increased risk for CVD and mortality.
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Affiliation(s)
- J N Kiage
- Division of Epidemiology, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN 37203, USA.
| | - U K A Sampson
- Center for Translation Research and Implementation Science (CTRIS), National Heart, Lung, and Blood Institute, Bethesda, MD 30105, USA.
| | - L Lipworth
- Division of Epidemiology, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN 37203, USA; Vanderbilt Center for Translational and Clinical Cardiovascular Research, Vanderbilt University Medical Center, Nashville, TN 37203, USA.
| | - S Fazio
- The Knight Cardiovascular Institute, Center for Preventive Cardiology, Oregon Health and Science University, Portland, OR 97239, USA.
| | - G A Mensah
- Center for Translation Research and Implementation Science (CTRIS), National Heart, Lung, and Blood Institute, Bethesda, MD 30105, USA.
| | - Q Yu
- Westat, Rockville, MD 20850, USA.
| | - H Munro
- The International Epidemiology Institute, Rockville, MD 20850, USA.
| | - E A Akwo
- Division of Epidemiology, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN 37203, USA; Vanderbilt Center for Translational and Clinical Cardiovascular Research, Vanderbilt University Medical Center, Nashville, TN 37203, USA.
| | - Q Dai
- Division of Epidemiology, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN 37203, USA.
| | - W J Blot
- Division of Epidemiology, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN 37203, USA; The International Epidemiology Institute, Rockville, MD 20850, USA.
| | - E K Kabagambe
- Division of Epidemiology, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN 37203, USA; Vanderbilt Center for Translational and Clinical Cardiovascular Research, Vanderbilt University Medical Center, Nashville, TN 37203, USA.
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Li X, Gao J, Huang K, Qi X, Dai Q, Mei X, Xu W. Dynamic changes of global DNA methylation and hypermethylation of cell adhesion-related genes in rat kidneys in response to ochratoxin A. WORLD MYCOTOXIN J 2015. [DOI: 10.3920/wmj2014.1795] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Ochratoxin A (OTA), which is found in a variety of food products, is associated with the development of nephrotoxicity and carcinogenicity in rats and has raised public health concerns. A previous study in our laboratory indicated that OTA exposure induced cytotoxicity by decreasing global DNA methylation in vitro. However, the relationship between OTA-induced nephrotoxicity and DNA methylation changes in vivo remains unclear. The object of this study was to investigate whether OTA can change global DNA methylation or alter the expression of several critical tumour-related genes by inducing methylation modifications before carcinogenesis. We focused on the mechanism of action of OTA in regard to DNA methylation, including the expression of DNA methyltransferases and the regulation of specific cell signalling pathways. Dynamic and dose-dependent changes of global DNA methylation were observed during OTA-induced nephrotoxicity and probably associated with the expression of DNA methyltransferase 1. 13-week exposure of OTA caused hypermethylation in the promoters of critical cell adhesion-related genes, E-cadherin and N-cadherin, leading to reduction of the corresponding mRNA expression, accompanied by transcriptional activation of the Wnt and PI3K/AKT pathways. These findings suggested that long-term OTA exposure could disrupt DNA methylation profile, which might be one of the possible mechanisms of OTA-induced nephrotoxicity.
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Affiliation(s)
- X. Li
- Laboratory of food safety and molecular biology, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China P.R
| | - J. Gao
- Laboratory of food safety and molecular biology, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China P.R
| | - K. Huang
- Laboratory of food safety and molecular biology, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China P.R
- Laboratory of Food quality and safety, Beijing 100083, China P.R
| | - X. Qi
- Laboratory of food safety and molecular biology, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China P.R
| | - Q. Dai
- Laboratory of food safety and molecular biology, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China P.R
| | - X. Mei
- Laboratory of food safety and molecular biology, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China P.R
| | - W. Xu
- Laboratory of food safety and molecular biology, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China P.R
- Laboratory of Food quality and safety, Beijing 100083, China P.R
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Zhang L, Liu J, Wang X, Li Z, Zhang X, Cao P, She X, Dai Q, Tang J, Liu Z. Upregulation of cytoskeleton protein and extracellular matrix protein induced by stromal-derived nitric oxide promotes lung cancer invasion and metastasis. Curr Mol Med 2015; 14:762-71. [PMID: 25056538 DOI: 10.2174/1566524014666140724103147] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2014] [Revised: 03/28/2014] [Accepted: 04/23/2014] [Indexed: 12/15/2022]
Abstract
Lung cancer commonly metastasizes to lymph nodes, brain and bones, which is the main cause of death. It is still a challenge to detect molecular biomarkers for early diagnosis and therapeutics of lung cancer. Our previous study found that bone marrow-derived stroma cells (BMSCs) under tumor microenvironment produced nitric oxide (NO), which was induced by inducible nitric oxide synthase (iNOS), and promoted invasion and metastasis of cancer cells by remodeling cytoskeleton. The aim of this study is to elucidate the relationship between the expressions of iNOS, cytoskeleton protein caldesmon, OPN, and clinical parameters especially the metastasis of lung cancer. We found that nitric oxide can remodel cytoskeleton and promoted the mobility of lung cancer cells. The expressions of iNOS, caldesmon, and OPN are closely correlated to metastasis of lung cancer. The intracranial metastatic tissue samples of lung cancer showed significantly higher expression of iNOS, caldesmon and OPN. A flow-cytometry analysis for peripheral blood of lung cancer patients showed increased EPCAM+/OPN+ cells in circulation of patients with bone metastasis compared to that of patients without metastasis, which is indicative of cancer circulating cells. The concentration of serum OPN was also positively related to the bone metastasis of lung cancer. Taken together, these results suggested that iNOS, caldesmon and OPN may work as biomarkers for metastasis of lung cancer.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | - Z Liu
- (J. Tang) Department of Cardiothoracic Surgery, Second Xiangya Hospital, Central South University, 139 Middle Renmin Road, Changsha, Hunan 410011, China.
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Tantibhedhyangkul J, Hawkins KC, Dai Q, Mu K, Dunn CN, Miller SE, Price TM. Expression of a mitochondrial progesterone receptor in human spermatozoa correlates with a progestin-dependent increase in mitochondrial membrane potential. Andrology 2014; 2:875-83. [PMID: 25187426 DOI: 10.1111/j.2047-2927.2014.00263.x] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2014] [Revised: 07/28/2014] [Accepted: 07/31/2014] [Indexed: 12/23/2022]
Abstract
The hyperactivation of human spermatozoa necessary for fertilization requires a substantial increase in cellular energy production. The factors responsible for increasing cellular energy remain poorly defined. This article proposes a role for a novel mitochondrial progesterone receptor (PR-M) in modulation of mitochondrial activity. Basic science studies demonstrate a 38 kDa protein with western blot analysis, consistent with PR-M; whereas imaging studies with confocal and immunoelectron microscopy demonstrate a PR on the mitochondria. Treatment with a PR-specific progestin shows increased mitochondrial membrane potential, not related to induction of an acrosome reaction. The increase in mitochondrial membrane potential was inhibited by a specific PR antagonist, but not affected by an inhibitor to the progesterone-dependent Catsper voltage-activated channel. In conclusion, these studies suggest expression of a novel mitochondrial PR in human spermatozoa with a progestin-dependent increase in mitochondrial activity. This mechanism may serve to enhance cellular energy production as the spermatozoa traverse the female genital tract being exposed to increasing concentrations of progesterone.
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Liu W, Yang K, Qi X, Xu K, Ji H, Ai J, Ge A, Wu Y, Li Y, Dai Q, Liang Q, Bao C, Bergquist R, Tang F, Zhu Y. Spatial and temporal analysis of human infection with avian influenza A(H7N9) virus in China, 2013. Euro Surveill 2013; 18. [DOI: 10.2807/1560-7917.es2013.18.47.20640] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Binary file ES_Abstracts_Final_ECDC.txt matches
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Affiliation(s)
- W Liu
- Department of Acute Infectious Disease Control and Prevention, Jiangsu Provincial Center for Disease Control and Prevention, Nanjing, China
| | - K Yang
- Department of Schistosomiasis Control, Jiangsu Institute of Parasitic Diseases, Wuxi, China
| | - X Qi
- Department of Acute Infectious Disease Control and Prevention, Jiangsu Provincial Center for Disease Control and Prevention, Nanjing, China
| | - K Xu
- Department of Acute Infectious Disease Control and Prevention, Jiangsu Provincial Center for Disease Control and Prevention, Nanjing, China
| | - H Ji
- Department of Acute Infectious Disease Control and Prevention, Jiangsu Provincial Center for Disease Control and Prevention, Nanjing, China
| | - J Ai
- Department of Acute Infectious Disease Control and Prevention, Jiangsu Provincial Center for Disease Control and Prevention, Nanjing, China
| | - A Ge
- Department of Acute Infectious Disease Control and Prevention, Jiangsu Provincial Center for Disease Control and Prevention, Nanjing, China
| | - Y Wu
- Department of Acute Infectious Disease Control and Prevention, Jiangsu Provincial Center for Disease Control and Prevention, Nanjing, China
| | - Y Li
- Department of Acute Infectious Disease Control and Prevention, Jiangsu Provincial Center for Disease Control and Prevention, Nanjing, China
| | - Q Dai
- Department of Acute Infectious Disease Control and Prevention, Jiangsu Provincial Center for Disease Control and Prevention, Nanjing, China
| | - Q Liang
- Department of Acute Infectious Disease Control and Prevention, Jiangsu Provincial Center for Disease Control and Prevention, Nanjing, China
| | - C Bao
- Department of Acute Infectious Disease Control and Prevention, Jiangsu Provincial Center for Disease Control and Prevention, Nanjing, China
| | | | - F Tang
- Department of Acute Infectious Disease Control and Prevention, Jiangsu Provincial Center for Disease Control and Prevention, Nanjing, China
| | - Y Zhu
- Department of Acute Infectious Disease Control and Prevention, Jiangsu Provincial Center for Disease Control and Prevention, Nanjing, China
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Aaberg-Jessen C, Fogh L, Halle B, Jensen V, Brunner N, Kristensen BW, Abe T, Momii Y, Watanabe J, Morisaki I, Natsume A, Wakabayashi T, Fujiki M, Aldaz B, Fabius AWM, Silber J, Harinath G, Chan TA, Huse JT, Anai S, Hide T, Nakamura H, Makino K, Yano S, Kuratsu JI, Balyasnikova IV, Prasol MS, Kanoija DK, Aboody KS, Lesniak MS, Barone T, Burkhart C, Purmal A, Gudkov A, Gurova K, Plunkett R, Barton K, Misuraca K, Cordero F, Dobrikova E, Min H, Gromeier M, Kirsch D, Becher O, Pont LB, Kloezeman J, van den Bent M, Kanaar R, Kremer A, Swagemakers S, French P, Dirven C, Lamfers M, Leenstra S, Pont LB, Balvers R, Kloezeman J, Kleijn A, Lawler S, Leenstra S, Dirven C, Lamfers M, Gong X, Andres A, Hanson J, Delashaw J, Bota D, Chen CC, Yao NW, Chuang WJ, Chang C, Chen PY, Huang CY, Wei KC, Cheng Y, Dai Q, Morshed R, Han Y, Auffinger B, Wainwright D, Zhang L, Tobias A, Rincon E, Thaci B, Ahmed A, He C, Lesniak M, Choi YA, Pandya H, Gibo DM, Fokt I, Priebe W, Debinski W, Chornenkyy Y, Agnihotri S, Buczkowicz P, Rakopoulos P, Morrison A, Barszczyk M, Becher O, Hawkins C, Chung S, Decollogne S, Luk P, Shen H, Ha W, Day B, Stringer B, Hogg P, Dilda P, McDonald K, Moore S, Hayden-Gephart M, Bergen J, Su Y, Rayburn H, Edwards M, Scott M, Cochran J, Das A, Varma AK, Wallace GC, Dixon-Mah YN, Vandergrift WA, Giglio P, Ray SK, Patel SJ, Banik NL, Dasgupta T, Olow A, Yang X, Mueller S, Prados M, James CD, Haas-Kogan D, Dave ND, Desai PB, Gudelsky GA, Chow LML, LaSance K, Qi X, Driscoll J, Driscoll J, Ebsworth K, Walters MJ, Ertl LS, Wang Y, Berahovic RD, McMahon J, Powers JP, Jaen JC, Schall TJ, Eroglu Z, Portnow J, Sacramento A, Garcia E, Raubitschek A, Synold T, Esaki S, Rabkin S, Martuza R, Wakimoto H, Ferluga S, Tome CL, Debinski W, Forde HE, Netland IA, Sleire L, Skeie B, Enger PO, Goplen D, Giladi M, Tichon A, Schneiderman R, Porat Y, Munster M, Dishon M, Weinberg U, Kirson E, Wasserman Y, Palti Y, Giladi M, Porat Y, Schneiderman R, Munster M, Weinberg U, Kirson E, Palti Y, Gramatzki D, Staudinger M, Frei K, Peipp M, Weller M, Grasso C, Liu L, Becher O, Berlow N, Davis L, Fouladi M, Gajjar A, Hawkins C, Huang E, Hulleman E, Hutt M, Keller C, Li XN, Meltzer P, Quezado M, Quist M, Raabe E, Spellman P, Truffaux N, van Vurden D, Wang N, Warren K, Pal R, Grill J, Monje M, Green AL, Ramkissoon S, McCauley D, Jones K, Perry JA, Ramkissoon L, Maire C, Shacham S, Ligon KL, Kung AL, Zielinska-Chomej K, Grozman V, Tu J, Viktorsson K, Lewensohn R, Gupta S, Mladek A, Bakken K, Carlson B, Boakye-Agyeman F, Kizilbash S, Schroeder M, Reid J, Sarkaria J, Hadaczek P, Ozawa T, Soroceanu L, Yoshida Y, Matlaf L, Singer E, Fiallos E, James CD, Cobbs CS, Hashizume R, Tom M, Ihara Y, Ozawa T, Santos R, Torre JDL, Lepe E, Waldman T, Prados M, James D, Hashizume R, Ihara Y, Huang X, Yu-Jen L, Tom M, Mueller S, Gupta N, Solomon D, Waldman T, Zhang Z, James D, Hayashi T, Adachi K, Nagahisa S, Hasegawa M, Hirose Y, Gephart MH, Moore S, Bergen J, Su YS, Rayburn H, Scott M, Cochran J, Hingtgen S, Kasmieh R, Nesterenko I, Figueiredo JL, Dash R, Sarkar D, Fisher P, Shah K, Horne E, Diaz P, Stella N, Huang C, Yang H, Wei K, Huang T, Hlavaty J, Ostertag D, Espinoza FL, Martin B, Petznek H, Rodriguez-Aguirre M, Ibanez C, Kasahara N, Gunzburg W, Gruber H, Pertschuk D, Jolly D, Robbins J, Hurwitz B, Yoo JY, Bolyard C, Yu JG, Wojton J, Zhang J, Bailey Z, Eaves D, Cripe T, Old M, Kaur B, Serwer L, Yoshida Y, Le Moan N, Santos R, Ng S, Butowski N, Krtolica A, Ozawa T, Cary SPL, James CD, Johns T, Greenall S, Donoghue J, Adams T, Karpel-Massler G, Westhoff MA, Kast RE, Dwucet A, Wirtz CR, Debatin KM, Halatsch ME, Karpel-Massler G, Kast RE, Westhoff MA, Merkur N, Dwucet A, Wirtz CR, Debatin KM, Halatsch ME, Kievit F, Stephen Z, Wang K, Kolstoe D, Silber J, Ellenbogen R, Zhang M, Kitange G, Schroeder M, Sarkaria J, Kleijn A, Haefner E, Leenstra S, Dirven C, Lamfers M, Knubel K, Pernu BM, Sufit A, Pierce AM, Nelson SK, Keating AK, Jensen SS, Kristensen BW, Lachowicz J, Demeule M, Regina A, Tripathy S, Curry JC, Nguyen T, Castaigne JP, Le Moan N, Serwer L, Yoshida Y, Ng S, Davis T, Santos R, Davis A, Tanaka K, Keating T, Getz J, Kapp GT, Romero JM, Ozawa T, James CD, Krtolica A, Cary SPL, Lee S, Ramisetti S, Slagle-Webb B, Sharma A, Connor J, Lee WS, Maire C, Kluk M, Aster JC, Ligon K, Sun S, Lee D, Ho ASW, Pu JKS, Zhang ZQ, Lee NP, Day PJR, Leung GKK, Liu Z, Liu X, Madhankumar AB, Miller P, Webb B, Connor JR, Yang QX, Lobo M, Green S, Schabel M, Gillespie Y, Woltjer R, Pike M, Lu YJ, Torre JDL, Waldman T, Prados M, Ozawa T, James D, Luchman HA, Stechishin O, Nguyen S, Cairncross JG, Weiss S, Lun X, Wells JC, Hao X, Zhang J, Grinshtein N, Kaplan D, Luchman A, Weiss S, Cairncross JG, Senger D, Robbins S, Madhankumar A, Slagle-Webb B, Rizk E, Payne R, Park A, Pang M, Harbaugh K, Connor J, Wilisch-Neumann A, Pachow D, Kirches E, Mawrin C, McDonell S, Liang J, Piao Y, Nguyen N, Yung A, Verhaak R, Sulman E, Stephan C, Lang F, de Groot J, Mizobuchi Y, Okazaki T, Kageji T, Kuwayama K, Kitazato KT, Mure H, Hara K, Morigaki R, Matsuzaki K, Nakajima K, Nagahiro S, Kumala S, Heravi M, Devic S, Muanza T, Nelson SK, Knubel KH, Pernu BM, Pierce AM, Keating AK, Neuwelt A, Nguyen T, Wu YJ, Donson A, Vibhakar R, Venkatamaran S, Amani V, Neuwelt E, Rapkin L, Foreman N, Ibrahim F, New P, Cui K, Zhao H, Chow D, Stephen W, Nozue-Okada K, Nagane M, McDonald KL, Ogawa D, Chiocca E, Godlewski J, Ozawa T, Yoshida Y, Santos R, James D, Pang M, Liu X, Madhankumar AB, Slagle-Webb B, Patel A, Miller P, Connor J, Pasupuleti N, Gorin F, Valenzuela A, Leon L, Carraway K, Ramachandran C, Nair S, Quirrin KW, Khatib Z, Escalon E, Melnick S, Phillips A, Boghaert E, Vaidya K, Ansell P, Shalinsky D, Zhang Y, Voorbach M, Mudd S, Holen K, Humerickhouse R, Reilly E, Huang T, Parab S, Diago O, Espinoza FL, Martin B, Ibanez C, Kasahara N, Gruber H, Pertschuk D, Jolly D, Robbins J, Ryken T, Agarwal S, Al-Keilani M, Alqudah M, Sibenaller Z, Assemolt M, Sai K, Li WY, Li WP, Chen ZP, Saito R, Sonoda Y, Kanamori M, Yamashita Y, Kumabe T, Tominaga T, Sarkar G, Curran G, Jenkins R, Scharnweber R, Kato Y, Lin J, Everson R, Soto H, Kruse C, Kasahara N, Liau L, Prins R, Semenkow S, Chu Q, Eberhart C, Sengupta R, Marassa J, Piwnica-Worms D, Rubin J, Serwer L, Kapp GT, Le Moan N, Yoshida Y, Romero JM, Ng S, Davis A, Ozawa T, Krtolica A, James CD, Cary SPL, Shai R, Pismenyuk T, Moshe I, Fisher T, Freedman S, Simon A, Amariglio N, Rechavi G, Toren A, Yalon M, Shen H, Decollogne S, Dilda P, Chung S, Luk P, Hogg P, McDonald K, Shimazu Y, Kurozumi K, Ichikawa T, Fujii K, Onishi M, Ishida J, Oka T, Watanabe M, Nasu Y, Kumon H, Date I, Sirianni RW, McCall RL, Spoor J, van der Kaaij M, Kloezeman J, Geurtjens M, Dirven C, Lamfers M, Leenstra S, Stephen Z, Veiseh O, Kievit F, Fang C, Leung M, Ellenbogen R, Silber J, Zhang M, Strohbehn G, Atsina KK, Patel T, Piepmeier J, Zhou J, Saltzman WM, Takahashi M, Valdes G, Inagaki A, Kamijima S, Hiraoka K, Micewicz E, McBride WH, Iwamoto KS, Gruber HE, Robbins JM, Jolly DJ, Kasahara N, Warren K, McCully C, Bacher J, Thomas T, Murphy R, Steffen-Smith E, McAllister R, Pastakia D, Widemann B, Wei K, Yang H, Huang C, Chen P, Hua M, Liu H, Woolf EC, Abdelwahab MG, Fenton KE, Liu Q, Turner G, Preul MC, Scheck AC, Yoshida Y, Ozawa T, Butowski N, Shen W, Brown D, Pedersen H, James D, Zhang J, Hariono S, Yao TW, Sidhu A, Hashizume R, James CD, Weiss WA, Nicolaides TP, Olusanya T. EXPERIMENTAL THERAPEUTICS AND PHARMACOLOGY. Neuro Oncol 2013; 15:iii37-iii61. [PMCID: PMC3823891 DOI: 10.1093/neuonc/not176] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/21/2023] Open
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