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Yuan C, Tang C, Zhan X, Zhou M, Zhang L, Chen WT, Abdukayum A, Hu G. ZIF-67 based CoS 2 self-assembled on graphitic carbon nitride microtubular for sensitive electrochemical detection of paraquat in fruits. J Hazard Mater 2024; 467:133715. [PMID: 38359763 DOI: 10.1016/j.jhazmat.2024.133715] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/03/2023] [Revised: 02/01/2024] [Accepted: 02/01/2024] [Indexed: 02/17/2024]
Abstract
Paraquat (PQ) is a widely used and harmful herbicide that must be detected in the environment. This study reports a novel composite (CoS2-GCN) prepared by assembling cobalt disulfide (CoS2) derived from metal-organic frameworks (MOFs) on graphitic carbon nitride (GCN). An electrochemical sensor (CoS2-GCN/ glassy carbon electrode (GCE)) was successfully prepared by modifying CoS2-GCN onto a GCE to sensitively detect PQ. Different concentrations of PQ were detected using square-wave voltammetry, and the CoS2-GCN/GCE electrochemical sensor showed remarkable response signals for PQ in the range of 20 - 1000 nM and 1 - 13 μM, with a detection limit of 4.13 nM (S/N = 3). The CoS2-GCN/GCE electrochemical sensor exhibited high stability, reproducibility, and immunity to interference, which were attributed to the synergistic effects of CoS2 and GCN. In addition, the CoS2-GCN/GCE electrochemical sensor showed high applicability for the analysis of fruit samples. Therefore, the proposed sensor has potential applications in PQ detection.
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Affiliation(s)
- Chenghu Yuan
- Institute for Ecological Research and Pollution Control of Plateau Lakes, School of Ecology and Environmental Science, Yunnan University, Kunming 650504, China; School of Materials Science and Engineering, Anhui University of Science and Technology, Huainan 232001, China
| | - Cui Tang
- Institute for Ecological Research and Pollution Control of Plateau Lakes, School of Ecology and Environmental Science, Yunnan University, Kunming 650504, China
| | - Xuejia Zhan
- School of Agriculture and Biology & Key Laboratory of Urban Agriculture, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Menglin Zhou
- Institute for Ecological Research and Pollution Control of Plateau Lakes, School of Ecology and Environmental Science, Yunnan University, Kunming 650504, China
| | - Lei Zhang
- School of Materials Science and Engineering, Anhui University of Science and Technology, Huainan 232001, China.
| | - Wen-Tong Chen
- Key Laboratory of Coordination Chemistry of Jiangxi Province, School of Chemistry and Chemical Engineering, Jinggangshan University, Ji'an 343009, China
| | - Abdukader Abdukayum
- Xinjiang Key Laboratory of Novel Functional Materials Chemistry, College of Chemistry and Environmental Sciences, Kashi University, Kashi 844000, China
| | - Guangzhi Hu
- Institute for Ecological Research and Pollution Control of Plateau Lakes, School of Ecology and Environmental Science, Yunnan University, Kunming 650504, China; Southwest United Graduate School, Kunming 650092, China.
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Cochard T, Svetlizky I, Albertini G, Viesca RC, Rubinstein SM, Spaepen F, Yuan C, Denolle M, Song YQ, Xiao L, Weitz DA. Propagation of extended fractures by local nucleation and rapid transverse expansion of crack-front distortion. Nat Phys 2024; 20:660-665. [PMID: 38638457 PMCID: PMC11021187 DOI: 10.1038/s41567-023-02365-0] [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] [Figures] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Accepted: 11/30/2023] [Indexed: 04/20/2024]
Abstract
Fractures are ubiquitous and can lead to the catastrophic material failure of materials. Although fracturing in a two-dimensional plane is well understood, all fractures are extended in and propagate through three-dimensional space. Moreover, their behaviour is complex. Here we show that the forward propagation of a fracture front occurs through an initial rupture, nucleated at some localized position, followed by a very rapid transverse expansion at velocities as high as the Rayleigh-wave speed. We study fracturing in a circular geometry that achieves an uninterrupted extended fracture front and use a fluid to control the loading conditions that determine the amplitude of the forward jump. We find that this amplitude correlates with the transverse velocity. Dynamic rupture simulations capture the observations for only a high transverse velocity. These results highlight the importance of transverse dynamics in the forward propagation of an extended fracture.
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Affiliation(s)
- T. Cochard
- National Key Laboratory of Petroleum Resources and Engineering, China University of Petroleum, Beijing, China
- School of Engineering and Applied Sciences (SEAS), Harvard University, Cambridge, MA USA
| | - I. Svetlizky
- School of Engineering and Applied Sciences (SEAS), Harvard University, Cambridge, MA USA
| | - G. Albertini
- Faculty of Engineering, University of Nottingham, Nottingham, UK
| | - R. C. Viesca
- Department of Civil and Environmental Engineering, Tufts University, Medford, MA USA
| | - S. M. Rubinstein
- The Racah Institute of Physics, The Hebrew University of Jerusalem, Jerusalem, Israel
| | - F. Spaepen
- School of Engineering and Applied Sciences (SEAS), Harvard University, Cambridge, MA USA
| | - C. Yuan
- Department of Earth and Planetary Sciences, Harvard University, Cambridge, MA USA
| | - M. Denolle
- Earth and Space Sciences, University of Washington, Seattle, WA USA
| | - Y-Q. Song
- School of Engineering and Applied Sciences (SEAS), Harvard University, Cambridge, MA USA
- Athinoula A. Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital, Charlestown, MA USA
| | - L. Xiao
- National Key Laboratory of Petroleum Resources and Engineering, China University of Petroleum, Beijing, China
| | - D. A. Weitz
- School of Engineering and Applied Sciences (SEAS), Harvard University, Cambridge, MA USA
- Department of Physics, Harvard University, Cambridge, MA USA
- Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, MA USA
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Zhang Y, Lin S, Liu J, Chen Q, Kang J, Zhong J, Hu M, Basabrain MS, Liang Y, Yuan C, Zhang C. Ang1/Tie2/VE-Cadherin Signaling Regulates DPSCs in Vascular Maturation. J Dent Res 2024; 103:101-110. [PMID: 38058134 DOI: 10.1177/00220345231210227] [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] [Indexed: 12/08/2023] Open
Abstract
Adding dental pulp stem cells (DPSCs) to vascular endothelial cell-formed vessel-like structures can increase the longevity of these vessel networks. DPSCs display pericyte-like cell functions and closely assemble endothelial cells (ECs). However, the mechanisms of DPSC-derived pericyte-like cells in stabilizing the vessel networks are not fully understood. In this study, we investigated the functions of E-DPSCs, which were DPSCs isolated from the direct coculture of human umbilical vein endothelial cells (HUVECs) and DPSCs, and T-DPSCs, which were DPSCs treated by transforming growth factor beta 1 (TGF-β1), in stabilizing blood vessels in vitro and in vivo. A 3-dimensional coculture spheroid sprouting assay was conducted to compare the functions of E-DPSCs and T-DPSCs in vitro. Dental pulp angiogenesis in the severe combined immunodeficiency (SCID) mouse model was used to explore the roles of E-DPSCs and T-DPSCs in vascularization in vivo. The results demonstrated that both E-DPSCs and T-DPSCs possess smooth muscle cell-like cell properties, exhibiting higher expression of the mural cell-specific markers and the suppression of HUVEC sprouting. E-DPSCs and T-DPSCs inhibited HUVEC sprouting by activating TEK tyrosine kinase (Tie2) signaling, upregulating vascular endothelial (VE)-cadherin, and downregulating vascular endothelial growth factor receptor 2 (VEGFR2). In vivo study revealed more perfused and total blood vessels in the HUVEC + E-DPSC group, HUVEC + T-DPSC group, angiopoietin 1 (Ang1) pretreated group, and vascular endothelial protein tyrosine phosphatase (VE-PTP) inhibitor pretreated group, compared to HUVEC + DPSC group. In conclusion, these data indicated that E-DPSCs and T-DPSCs could stabilize the newly formed blood vessels and accelerate their perfusion. The critical regulating pathways are Ang1/Tie2/VE-cadherin and VEGF/VEGFR2 signaling.
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Affiliation(s)
- Y Zhang
- Restorative Dental Sciences, Endodontics, Faculty of Dentistry, The University of Hong Kong, Hong Kong, China
| | - S Lin
- Restorative Dental Sciences, Endodontics, Faculty of Dentistry, The University of Hong Kong, Hong Kong, China
| | - J Liu
- Restorative Dental Sciences, Endodontics, Faculty of Dentistry, The University of Hong Kong, Hong Kong, China
| | - Q Chen
- Applied Oral Sciences & Community Dental Care, Faculty of Dentistry, The University of Hong Kong, Hong Kong, China
| | - J Kang
- Restorative Dental Sciences, Endodontics, Faculty of Dentistry, The University of Hong Kong, Hong Kong, China
| | - J Zhong
- Restorative Dental Sciences, Endodontics, Faculty of Dentistry, The University of Hong Kong, Hong Kong, China
| | - M Hu
- Restorative Dental Sciences, Endodontics, Faculty of Dentistry, The University of Hong Kong, Hong Kong, China
| | - M S Basabrain
- Restorative Dental Sciences, Endodontics, Faculty of Dentistry, The University of Hong Kong, Hong Kong, China
| | - Y Liang
- Restorative Dental Sciences, Endodontics, Faculty of Dentistry, The University of Hong Kong, Hong Kong, China
| | - C Yuan
- School of Stomatology, Xuzhou Medical University, Department of Dental Implant, The Affiliated Stomatological Hospital of Xuzhou Medical University, Xuzhou, China
| | - C Zhang
- Restorative Dental Sciences, Endodontics, Faculty of Dentistry, The University of Hong Kong, Hong Kong, China
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Xu X, Pang T, Zhou Y, Zhang H, Ma A, Yuan C, Chen H, Wen X, Yang Q, Xu X. The Multi-domain Lifestyle Intervention for Cognitive Impairment in Community-Dwelling Older Adults in Hangzhou (The Heritage Study): Study Design and Protocol. J Prev Alzheimers Dis 2024; 11:601-611. [PMID: 38706276 DOI: 10.14283/jpad.2024.59] [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] [Indexed: 05/07/2024]
Abstract
BACKGROUND The globe has been working to promote a multi-domain lifestyle intervention for dementia prevention in older adults, referring to the Worldwide-FINGERS (Finnish Geriatric Intervention Study to Prevent Cognitive Impairment and Disability) initiative. In China, the multi-domain lifestyle intervention has been implemented in rural communities (MIND-China), yet the adaptability of such intervention based on the urban communities in China has not been verified. OBJECTIVE To examine the effectiveness and feasibility of the multi-domain lifestyle intervention on dementia prevention in at-risk community-dwelling older adults in China. DESIGN, SETTING, PARTICIPANTS The multi-domain lifestyle intervention study is a community-based 2-year cluster randomized controlled trial (RCT). A total of 1200 participants aged 60-80 years old will be recruited from twelve communities in Hangzhou, Zhejiang. Inclusion criteria were the Montreal Cognitive Assessment 5 minutes protocol (5 min MoCA) score of 6-9 or the Ascertain Dementia 8 (AD 8) score of ≥2, and having modifiable lifestyle factors. INTERVENTION, MEASUREMENTS, RESULTS Participating communities will be randomized into either the structured multi-domain intervention (SMI) arm or the self-guided intervention (SGI, general health education) arm. The SMI consists of cognitive training, physical exercise, and nutritional and dietary instruction for the first 12 months; and vascular risks monitoring and control for 24 months. The primary outcome is the global cognitive performance, measured by the comprehensive Neuropsychological Test Battery (NTB). The secondary outcomes include domain-specific cognitive performances, physical function, mental health, physiological and biochemical indices, adherence to healthy lifestyles, and neuroimaging metrics. The feasibility of intervention will be evaluated around the five dimensions of the RE-AIM framework and in conjunction with quantitative data, operational data and results of focus group discussions. CONCLUSIONS Following the Worldwide-FINGERS, this cluster RCT will verify the adaptability of the multi-domain lifestyle intervention in the urban community settings in China. This study will add evidence for global dementia prevention and management among older adults.
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Affiliation(s)
- X Xu
- Xin Xu, School of Public Health, the Second Affiliated Hospital, Zhejiang University School of Medicine, China, 310058.
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Li X, Yuan C, Chen Q, Xue Q, Mou J, Wang P. The efficacy of hydrogel containing zinc oxide-loaded and minocycline serum albumin nanopartical in the treatment of peri-implantitis. Med Oral Patol Oral Cir Bucal 2023; 28:e487-e495. [PMID: 37471303 PMCID: PMC10499345 DOI: 10.4317/medoral.25890] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2022] [Accepted: 06/12/2023] [Indexed: 07/22/2023] Open
Abstract
BACKGROUND We conducted this animal study to assess the efficacy of the novel hydrogel containing zinc oxide-loaded and minocycline serum albumin nanoparticals (Mino-ZnO@Alb NPs) on peri-implantitis in an experimental mouse model. MATERIAL AND METHODS Mino-ZnO@Alb NPs was prepared as previously reported. The peri-implantitis model was successfully established in rats, and the rats were divided into three groups randomly: Mino-ZnO@Alb NPs (Mino-ZnO) group, minocycline group, and untreated group. Four weeks later, clinical and radiographic assessments were performed to evaluate soft tissue inflammation and bone resorption level. Histologic analysis was performed to estimate the amount of remaining supporting bone tissue (SBT) around implants. ELISA tests were used to determine the concentration of inflammation factor interleukin-1-beta (IL-1β) and anti-inflammation factor tumor necrosis factor-alpha (TNF-α) around implants. RESULTS After one month, the Mino-ZnO group showed better results than the other two groups in regards to the results of bleeding on probing, probing pocket depth, bleeding index and gingival index. X-ray showed that SBT at mesial and distal sites around implants in the other two groups was significantly lower compared with that of Mino-ZnO group. The quantity of osteoclasts in peri-implant tissues of the Mino-ZnO group was less than that in the minocycline and untreated groups. IL-1β in the Mino-ZnO group was lower than that in the other two groups. TNF-α level was the opposite. CONCLUSIONS Mino-ZnO@Alb NPs can effectively treat peri-implantitis and promote soft tissue healing, and may act as a promising product.
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Affiliation(s)
- X Li
- Department of Implantology Affiliated Stomatological Hospital of Xuzhou Medical University 130 Huaihai West Road, Quanshan, Xuzhou, 22100, China
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Hamm SE, Yuan C, McQueen LF, Wallace MA, Zhang H, Arora A, Garafalo AM, McMillan RP, Lawlor MW, Prom MJ, Ott EM, Yan J, Addington AK, Morris CA, Gonzalez JP, Grange RW. Prolonged voluntary wheel running reveals unique adaptations in mdx mice treated with microdystrophin constructs ± the nNOS-binding site. Front Physiol 2023; 14:1166206. [PMID: 37435312 PMCID: PMC10330712 DOI: 10.3389/fphys.2023.1166206] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2023] [Accepted: 05/10/2023] [Indexed: 07/13/2023] Open
Abstract
We tested the effects of prolonged voluntary wheel running on the muscle function of mdx mice treated with one of two different microdystrophin constructs. At 7 weeks of age mdx mice were injected with a single dose of AAV9-CK8-microdystrophin with (gene therapy 1, GT1) or without (gene therapy 2, GT2) the nNOS-binding domain and were assigned to one of four gene therapy treated groups: mdxRGT1 (run, GT1), mdxGT1 (no run, GT1), or mdxRGT2 (run,GT2), mdxGT2 (no run, GT2). There were two mdx untreated groups injected with excipient: mdxR (run, no gene therapy) and mdx (no run, no gene therapy). A third no treatment group, Wildtype (WT) received no injection and did not run. mdxRGT1, mdxRGT2 and mdxR performed voluntary wheel running for 52 weeks; WT and remaining mdx groups were cage active. Robust expression of microdystrophin occurred in diaphragm, quadriceps, and heart muscles of all treated mice. Dystrophic muscle pathology was high in diaphragms of non-treated mdx and mdxR mice and improved in all treated groups. Endurance capacity was rescued by both voluntary wheel running and gene therapy alone, but their combination was most beneficial. All treated groups increased in vivo plantarflexor torque over both mdx and mdxR mice. mdx and mdxR mice displayed ∼3-fold lower diaphragm force and power compared to WT values. Treated groups demonstrated partial improvements in diaphragm force and power, with mdxRGT2 mice experiencing the greatest improvement at ∼60% of WT values. Evaluation of oxidative red quadriceps fibers revealed the greatest improvements in mitochondrial respiration in mdxRGT1 mice, reaching WT levels. Interestingly, mdxGT2 mice displayed diaphragm mitochondrial respiration values similar to WT but mdxRGT2 animals showed relative decreases compared to the no run group. Collectively, these data demonstrate that either microdystrophin construct combined with voluntary wheel running increased in vivo maximal muscle strength, power, and endurance. However, these data also highlighted important differences between the two microdystrophin constructs. GT1, with the nNOS-binding site, improved more markers of exercise-driven adaptations in metabolic enzyme activity of limb muscles, while GT2, without the nNOS-binding site, demonstrated greater protection of diaphragm strength after chronic voluntary endurance exercise but decreased mitochondrial respiration in the context of running.
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Affiliation(s)
- S. E. Hamm
- Department of Human Nutrition, Foods and Exercise and Metabolism Core, Virginia Tech, Blacksburg, VA, United States
| | - C. Yuan
- Department of Human Nutrition, Foods and Exercise and Metabolism Core, Virginia Tech, Blacksburg, VA, United States
| | - L. F. McQueen
- Department of Human Nutrition, Foods and Exercise and Metabolism Core, Virginia Tech, Blacksburg, VA, United States
| | - M. A. Wallace
- Department of Human Nutrition, Foods and Exercise and Metabolism Core, Virginia Tech, Blacksburg, VA, United States
| | - H. Zhang
- Department of Human Nutrition, Foods and Exercise and Metabolism Core, Virginia Tech, Blacksburg, VA, United States
| | - A. Arora
- Department of Human Nutrition, Foods and Exercise and Metabolism Core, Virginia Tech, Blacksburg, VA, United States
| | - A. M. Garafalo
- Department of Human Nutrition, Foods and Exercise and Metabolism Core, Virginia Tech, Blacksburg, VA, United States
| | - R. P. McMillan
- Department of Human Nutrition, Foods and Exercise and Metabolism Core, Virginia Tech, Blacksburg, VA, United States
| | - M. W. Lawlor
- Department of Pathology and Neuroscience Research Center, Medical College of Wisconsin and Diverge Translational Science Laboratory, Milwaukee, WI, United States
| | - M. J. Prom
- Department of Pathology and Neuroscience Research Center, Medical College of Wisconsin and Diverge Translational Science Laboratory, Milwaukee, WI, United States
| | - E. M. Ott
- Department of Pathology and Neuroscience Research Center, Medical College of Wisconsin and Diverge Translational Science Laboratory, Milwaukee, WI, United States
| | - J. Yan
- Department of Human Nutrition, Foods and Exercise and Metabolism Core, Virginia Tech, Blacksburg, VA, United States
| | - A. K. Addington
- Department of Human Nutrition, Foods and Exercise and Metabolism Core, Virginia Tech, Blacksburg, VA, United States
| | - C. A. Morris
- Solid Biosciences, Inc., Cambridge, MA, United States
| | | | - R. W. Grange
- Department of Human Nutrition, Foods and Exercise and Metabolism Core, Virginia Tech, Blacksburg, VA, United States
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Noejovich CV, Yuan C, Miranda P, Szeto J, Patel R, Armstrong D, Verdu E. A87 PERSPECTIVES ON DIET MODIFICATION TO MANAGE THEIR SYMPTOMS IN PATIENTS WITH INFLAMMATORY BOWEL DISEASE. A SCOPING REVIEW. J Can Assoc Gastroenterol 2023. [PMCID: PMC9991376 DOI: 10.1093/jcag/gwac036.087] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 03/09/2023] Open
Abstract
Background The link between diet, disease activity and symptoms in IBD patients have recently gained attention and recommendations on dietary interventions to manage symptoms are common. Most studies have explored the correlation between dietary patterns and increased risk of IBD or symptom severity. However, there is limited understanding and no relevant systematic review of IBD patients’ perspectives and barriers to adopt the prescribed diets. We thus conducted a scoping review for this topic. Purpose Aim: We performed a scoping review of current evidence to investigate the extent of evidence on IBD adult patients’ perspectives on dietary modification to manage their symptoms and gaps for future research to explore patients' experiences. Method We followed the JBI (Joanna Briggs Institute) method for scoping reviews. A systematic search of Ovid Medline, Embase and Cochrane Library was conducted in April 2022 to retrieve published English language qualitative, quantitative and mixed methods studies that report IBD patients’ perspectives, behaviours, beliefs related to diet modification and barriers to diet adoption for managing their symptoms or disease activity. We manually reviewed reference lists of reviews on this topic. Since this is a scoping review, no statistical comparison is needed. Result(s) Out of 2822 papers screened, 42 studies met the inclusion criteria. Various methods were used in included studies with heterogenous outcomes reported. Of the 42 studies, 19 reported IBD patients' beliefs and behaviors related to diet as a primary outcome. Most patients reported changing their diet after being diagnosed with IBD, and food avoidance and restrictive diet were commonly reported to prevent relapse. Some studies reported that many patients reduced their opportunities for social life, such as eating out, practicing outdoor sports, having dinner with family in the same household and meeting friends. The dietary modification was more significant among individuals with active than inactive disease. Most studies showed that patients believe food can play a role in causing or preventing relapse, but beliefs are varied regarding the role of diet as initiating factor for IBD. Some patients believe dietary modification could be more important than medication to manage their disease symptoms. Few studies focused on patients' barriers when changing their diet, but financial barriers and limited nutritional guidance were commonly reported acknowledging searching for dietary advice on the internet. Conclusion(s) Food avoidance and social restriction for relapse prevention are standard practices by most IBD patients. The belief that nutrition is key in managing IBD is prevalent. This scoping review highlights the need to identify patients' barriers to accessing professional dietary guidance and nutritional interventions and provides direction for clinical studies and systematic reviews of focused research questions. Please acknowledge all funding agencies by checking the applicable boxes below None Disclosure of Interest None Declared
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Affiliation(s)
| | - C Yuan
- Medicine, McMaster University, Hamilton, Canada
| | - P Miranda
- Medicine, McMaster University, Hamilton, Canada
| | - J Szeto
- Medicine, McMaster University, Hamilton, Canada
| | - R Patel
- Medicine, McMaster University, Hamilton, Canada
| | - D Armstrong
- Medicine, McMaster University, Hamilton, Canada
| | - E Verdu
- Medicine, McMaster University, Hamilton, Canada
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Ding X, Yang X, Hao Q, Xu F, Yu X, Rao L, Yuan C, Tian S. Risk prediction of second primary malignancies in primary colorectal neuroendocrine neoplasms patients: a population-based study. J Endocrinol Invest 2023:10.1007/s40618-023-02047-x. [PMID: 36870016 DOI: 10.1007/s40618-023-02047-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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/05/2023] [Accepted: 02/19/2023] [Indexed: 03/05/2023]
Abstract
PURPOSE In this study, we aimed to identify risk factors for developing second primary malignancies (SPMs) in colorectal neuroendocrine neoplasms (NENs) patients and develop a competing-risk nomogram to predict SPMs' probabilities quantitatively. METHODS Patients with colorectal NENs were retrospectively collected from the Surveillance, Epidemiology, and End Results (SEER) database during 2000-2013. Potential risk factors for SPMs' occurrence in colorectal NENs' patients were identified by the Fine and Gray's proportional sub-distribution hazards model. Then, a competing-risk nomogram was constructed to quantify SPMs' probabilities. The discriminative abilities and calibrations of this competing-risk nomogram were assessed by the area under the receiver-operating characteristic (ROC) curves (AUC) and calibration curves. RESULTS We identified 11,017 colorectal NENs' patients, and randomly divided them into training (n = 7711 patients) and validation (n = 3306 patients) cohorts. In the whole cohort, 12.4% patients (n = 1369) had developed SPMs during the maximum follow-up of approximately 19 years (median 8.9 years). Sex, age, race, primary tumor location, and chemotherapy were identified as risk factors for SPMs' occurrence in colorectal NENs' patients. Such factors were selected to develop a competing-risk nomogram and showed excellent predictive ability for SPMs' occurrence (the 3-, 5-, and 10-year AUC values were 0.631, 0.632, and 0.629 in the training cohort and 0.665, 0.639, 0.624 in the validation cohort, respectively). CONCLUSIONS This research identified risk factors for SPMs' occurrence in colorectal NENs' patients. Competing-risk nomogram was constructed and proved to have good performance.
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Affiliation(s)
- X Ding
- Department of Clinical Laboratory, Affiliated Renhe Hospital of China Three Gorges University, Yichang, 443001, People's Republic of China
| | - X Yang
- Department of Clinical Laboratory, Affiliated Renhe Hospital of China Three Gorges University, Yichang, 443001, People's Republic of China
| | - Q Hao
- Department of Nursing, Affiliated Renhe Hospital of China Three Gorges University, Yichang, 443001, People's Republic of China
| | - F Xu
- Department of Pharmacy, The People's Hospital of China Three Gorges University, Yichang, 443000, People's Republic of China
| | - X Yu
- College of Basic Medical Science, China Three Gorges University, Yichang, 443002, People's Republic of China
| | - L Rao
- Department of Clinical Laboratory, Affiliated Renhe Hospital of China Three Gorges University, Yichang, 443001, People's Republic of China
| | - C Yuan
- College of Basic Medical Science, China Three Gorges University, Yichang, 443002, People's Republic of China.
| | - S Tian
- Department of Gastrointestinal Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, People's Republic of China.
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Davis N, Tzelves L, Geraghty R, Lombardo R, Yuan C, Petrik A, Neisius A, Gambaro G, Jung H, Shepherd R, Tailly T, Somani B, Skolarikos A. Comparing treatment outcomes for fluoroscopic and fluoroscopy-free endourological procedures: A systematic review on behalf of the EAU urolithiasis guidelines panel. Eur Urol 2023. [DOI: 10.1016/s0302-2838(23)01040-0] [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: 02/12/2023]
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Zakirov T, Varfolomeev M, Yuan C. Characterization of dynamic adsorption regimes in synthetic and natural porous structures using lattice Boltzmann simulations. Chem Eng Res Des 2023. [DOI: 10.1016/j.cherd.2022.10.046] [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: 11/18/2022]
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Yuan C, Jian Z, Jin X. Chronotype and insomnia may affect the testosterone levels with a sexual difference: a Mendelian randomization. J Endocrinol Invest 2023; 46:123-132. [PMID: 35997959 DOI: 10.1007/s40618-022-01890-8] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/10/2021] [Accepted: 07/29/2022] [Indexed: 01/12/2023]
Abstract
OBJECTIVE To evaluate the causal effects of sleep traits (i.e., chronotype, insomnia, and sleep duration) on bioavailable testosterone (BT), sex hormone-binding globulin (SHBG), and total testosterone (TT) levels in women and men. METHODS We performed Mendelian randomization (MR) using random-effect inverse-variance weighted (IVW) and 7 other MR analyses. Exposure data for sleep traits were obtained from the largest-to-date genome-wide association study (GWAS) from 339,926 to 1,331,010 individuals. Summary data for testosterone levels were obtained from GWAS based on the UK Biobank. RESULTS For women, our study supported that chronotype was associated with decreased BT (IVW: β = - 0.042, 95% CI - 0.060, - 0.023, p = 1.17E-05) and TT (IVW: - 0.053, 95% CI - 0.075, - 0.031, p = 2.30E-06). Besides, insomnia can significantly increase BT (IVW: β = 0.025, 95% CI 0.009, 0.041, p = 0.002). These findings were significant in most sensitivity analyses. For men, statistical significance was found between chronotype and BT (β = - 0.027, 95% CI - 0.048, - 0.005, p = 0.016), and insomnia and TT (β = - 0.028, 95% CI - 0.049, 0.007, p = 0.009) in IVW. However, the effect estimates were not broadly consistent with other sensitivity analyses. Our study did not find support for causal effects of sleep duration on testosterone levels in both women and men. CONCLUSION Our study reveals the sex differences in the effects of sleep traits on testosterone levels. A healthy sleep habit is vital for the maintenance of testosterone homeostasis in women. Further studies are warranted to investigate the associations between sleep traits and testosterone levels in men.
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Affiliation(s)
- C Yuan
- Department of Urology, Institute of Urology (Laboratory of Reconstructive Urology), West China Hospital, Sichuan University, No. 37 Guo Xue Xiang, Chengdu, Sichuan, 610041, People's Republic of China
| | - Z Jian
- Department of Urology, Institute of Urology (Laboratory of Reconstructive Urology), West China Hospital, Sichuan University, No. 37 Guo Xue Xiang, Chengdu, Sichuan, 610041, People's Republic of China
- West China Biomedical Big Data Center, Sichuan University, Chengdu, Sichuan, People's Republic of China
| | - X Jin
- Department of Urology, Institute of Urology (Laboratory of Reconstructive Urology), West China Hospital, Sichuan University, No. 37 Guo Xue Xiang, Chengdu, Sichuan, 610041, People's Republic of China.
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12
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Mossa-Basha M, Yuan C, Wasserman BA, Mikulis DJ, Hatsukami TS, Balu N, Gupta A, Zhu C, Saba L, Li D, DeMarco JK, Lehman VT, Qiao Y, Jager HR, Wintermark M, Brinjikji W, Hess CP, Saloner DA. Survey of the American Society of Neuroradiology Membership on the Use and Value of Extracranial Carotid Vessel Wall MRI. AJNR Am J Neuroradiol 2022; 43:1756-1761. [PMID: 36423951 DOI: 10.3174/ajnr.a7720] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2022] [Accepted: 10/10/2022] [Indexed: 11/25/2022]
Abstract
BACKGROUND AND PURPOSE Extracranial vessel wall MRI (EC-VWI) contributes to vasculopathy characterization. This survey study investigated EC-VWI adoption by American Society of Neuroradiology (ASNR) members and indications and barriers to implementation. MATERIALS AND METHODS The ASNR Vessel Wall Imaging Study Group survey on EC-VWI use, frequency, applications, MR imaging systems and field strength used, protocol development approaches, vendor engagement, reasons for not using EC-VWI, ordering provider interest, and impact on clinical care was distributed to the ASNR membership between April 2, 2019, to August 30, 2019. RESULTS There were 532 responses; 79 were excluded due to minimal, incomplete response and 42 due to redundant institutional responses, leaving 411 responses. Twenty-six percent indicated that their institution performed EC-VWI, with 66.3% performing it ≤1-2 times per month, most frequently on 3T MR imaging, with most using combined 3D and 2D protocols. Protocols most commonly included pre- and postcontrast T1-weighted imaging, TOF-MRA, and contrast-enhanced MRA. Inflammatory vasculopathy (63.3%), plaque vulnerability assessments (61.1%), intraplaque hemorrhage (61.1%), and dissection-detection/characterization (51.1%) were the most frequent applications. For those not performing EC-VWI, the reasons were a lack of ordering provider interest (63.9%), lack of radiologist time/interest (47.5%) or technical support (41.4%) for protocol development, and limited interpretation experience (44.9%) and knowledge of clinical applications (43.7%). Reasons given by 46.9% were that no providers approached radiology with interest in EC-VWI. If barriers were overcome, 51.1% of those not performing EC-VWI indicated they would perform it, and 40.6% were unsure; 48.6% did not think that EC-VWI had impacted patient management at their institution. CONCLUSIONS Only 26% of neuroradiology groups performed EC-VWI, most commonly due to limited clinician interest. Improved provider and radiologist education, protocols, processing techniques, technical support, and validation trials could increase adoption.
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Affiliation(s)
- M Mossa-Basha
- From the Department of Radiology (M.M.-B.), University of North Carolina, Chapel Hill, North Carolina .,Departments of Radiology (M.M.-B., N.B., C.Z.)
| | - C Yuan
- Department of Radiology (C.Y.), University of Utah, Salt Lake City, Utah
| | - B A Wasserman
- Department of Radiology (B.A.W.), University of Maryland, Baltimore, Maryland.,Department of Radiology (B.A.W., Y.Q.), Johns Hopkins University, Baltimore, Maryland
| | - D J Mikulis
- Joint Department of Medical Imaging (D.J.M.), The University Health Network and the University of Toronto, Toronto, Ontario, Canada
| | - T S Hatsukami
- Surgery (T.S.H.), University of Washington, Seattle, Washington
| | - N Balu
- Departments of Radiology (M.M.-B., N.B., C.Z.)
| | - A Gupta
- Department of Radiology (A.G.), Weill Cornell Medicine, New York, New York
| | - C Zhu
- Departments of Radiology (M.M.-B., N.B., C.Z.)
| | - L Saba
- Department of Radiology (L.S.), University of Cagliari, Cagliari, Sardinia, Italy
| | - D Li
- Biomedical Imaging Research Institute (D.L.), Cedars-Sinai Medical Center, Los Angeles, California
| | - J K DeMarco
- Department of Radiology (J.K.D.), Walter Reed National Military Medical Center, Bethesda, Maryland and Uniformed Services University of the Health Sciences, Bethesda, Maryland
| | - V T Lehman
- Department of Radiology (V.T.L., W.B.), Mayo Clinic, Rochester, Minnesota
| | - Y Qiao
- Department of Radiology (B.A.W., Y.Q.), Johns Hopkins University, Baltimore, Maryland
| | - H R Jager
- Neuroradiological Academic Unit (H.R.J.), Department of Brain Repair and Rehabilitation, University College London, Queen Square Institute of Neurology, London, UK
| | - M Wintermark
- Department of Neuroradiology (M.W.), MD Anderson Cancer Institute, Houston, Texas
| | - W Brinjikji
- Department of Radiology (V.T.L., W.B.), Mayo Clinic, Rochester, Minnesota
| | - C P Hess
- Department of Radiology and Biomedical Imaging (C.P.H., D.A.S.), University of California, San Francisco, San Francisco, California
| | - D A Saloner
- Department of Radiology and Biomedical Imaging (C.P.H., D.A.S.), University of California, San Francisco, San Francisco, California
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13
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Yuan C, Kim J, Wang QL, Lee AA, Babic A, Amundadottir LT, Klein AP, Li D, McCullough ML, Petersen GM, Risch HA, Stolzenberg-Solomon RZ, Perez K, Ng K, Giovannucci EL, Stampfer MJ, Kraft P, Wolpin BM. The age-dependent association of risk factors with pancreatic cancer. Ann Oncol 2022; 33:693-701. [PMID: 35398288 PMCID: PMC9233063 DOI: 10.1016/j.annonc.2022.03.276] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2021] [Revised: 03/04/2022] [Accepted: 03/31/2022] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Pancreatic cancer presents as advanced disease in >80% of patients; yet, appropriate ages to consider prevention and early detection strategies are poorly defined. We investigated age-specific associations and attributable risks of pancreatic cancer for established modifiable and non-modifiable risk factors. PATIENTS AND METHODS We included 167 483 participants from two prospective US cohort studies with 1190 incident cases of pancreatic cancer during >30 years of follow-up; 5107 pancreatic cancer cases and 8845 control participants of European ancestry from a completed multicenter genome-wide association study (GWAS); and 248 893 pancreatic cancer cases documented in the US Surveillance, Epidemiology, and End Results (SEER) Program. Across different age categories, we investigated cigarette smoking, obesity, diabetes, height, and non-O blood group in the prospective cohorts; weighted polygenic risk score of 22 previously identified single nucleotide polymorphisms in the GWAS; and male sex and black race in the SEER Program. RESULTS In the prospective cohorts, all five risk factors were more strongly associated with pancreatic cancer risk among younger participants, with associations attenuated among those aged >70 years. The hazard ratios comparing participants with three to five risk factors with those with no risk factors were 9.24 [95% confidence interval (CI) 4.11-20.77] among those aged ≤60 years, 3.00 (95% CI 1.85-4.86) among those aged 61-70 years, and 1.46 (95% CI 1.10-1.94) among those aged >70 years (Pheterogeneity = 3×10-5). These factors together were related to 65.6%, 49.7%, and 17.2% of incident pancreatic cancers in these age groups, respectively. In the GWAS and the SEER Program, the associations with the polygenic risk score, male sex, and black race were all stronger among younger individuals (Pheterogeneity ≤0.01). CONCLUSIONS Established risk factors are more strongly associated with earlier-onset pancreatic cancer, emphasizing the importance of age at initiation for cancer prevention and control programs targeting this highly lethal malignancy.
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Affiliation(s)
- C Yuan
- Department of Medical Oncology, Dana-Farber Cancer Institute and Harvard Medical School, Boston, USA.
| | - J Kim
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, USA
| | - Q L Wang
- Department of Medical Oncology, Dana-Farber Cancer Institute and Harvard Medical School, Boston, USA
| | - A A Lee
- Division of Gastroenterology, Hepatology, and Endoscopy, Brigham and Women's Hospital and Harvard Medical School, Boston, USA
| | - A Babic
- Department of Medical Oncology, Dana-Farber Cancer Institute and Harvard Medical School, Boston, USA
| | - L T Amundadottir
- Division of Cancer Epidemiology and Genetics, National Cancer Institute, Rockville, USA
| | - A P Klein
- Department of Oncology, Sidney Kimmel Comprehensive Cancer Center, Johns Hopkins School of Medicine, Baltimore, USA; Department of Pathology, Sol Goldman Pancreatic Cancer Research Center, Johns Hopkins School of Medicine, Baltimore, USA
| | - D Li
- Department of Gastrointestinal Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, USA
| | - M L McCullough
- Department of Population Science, American Cancer Society, Atlanta, USA
| | - G M Petersen
- Department of Quantitative Health Sciences, Mayo Clinic College of Medicine, Rochester, USA
| | - H A Risch
- Department of Chronic Disease Epidemiology, Yale School of Public Health, New Haven, USA
| | | | - K Perez
- Department of Medical Oncology, Dana-Farber Cancer Institute and Harvard Medical School, Boston, USA
| | - K Ng
- Department of Medical Oncology, Dana-Farber Cancer Institute and Harvard Medical School, Boston, USA
| | - E L Giovannucci
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, USA; Department of Nutrition, Harvard T.H. Chan School of Public Health, Boston, USA; Channing Division of Network Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, USA
| | - M J Stampfer
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, USA; Department of Nutrition, Harvard T.H. Chan School of Public Health, Boston, USA; Channing Division of Network Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, USA
| | - P Kraft
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, USA; Department of Biostatistics, Harvard T.H. Chan School of Public Health, Boston, USA
| | - B M Wolpin
- Department of Medical Oncology, Dana-Farber Cancer Institute and Harvard Medical School, Boston, USA
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14
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Mossa-Basha M, Zhu C, Yuan C, Saba L, Saloner DA, Edjlali M, Stence NV, Mandell DM, Romero JM, Qiao Y, Mikulis DJ, Wasserman BA. Survey of the American Society of Neuroradiology Membership on the Use and Value of Intracranial Vessel Wall MRI. AJNR Am J Neuroradiol 2022; 43:951-957. [PMID: 35710122 DOI: 10.3174/ajnr.a7541] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2022] [Accepted: 04/22/2022] [Indexed: 01/07/2023]
Abstract
BACKGROUND AND PURPOSE Intracranial vessel wall MR imaging is an emerging technique for intracranial vasculopathy assessment. Our aim was to investigate intracranial vessel wall MR imaging use by the American Society of Neuroradiology (ASNR) members at their home institutions, including indications and barriers to implementation. MATERIALS AND METHODS The ASNR Vessel Wall Imaging Study Group survey on vessel wall MR imaging use, frequency, applications, MR imaging systems and field strength used, protocol development approaches, vendor engagement, reasons for not using vessel wall MR imaging, ordering-provider interest, and impact on clinical care, was distributed to the ASNR membership between April 2 and August 30, 2019. RESULTS There were 532 responses; 79 were excluded due to nonresponse and 42 due to redundant institutional responses, leaving 411 responses. Fifty-two percent indicated that their institution performs vessel wall MR imaging, with 71.5% performed at least 1-2 times/month, most frequently on 3T MR imaging, and 87.7% using 3D sequences. Protocols most commonly included were T1-weighted pre- and postcontrast and TOF-MRA; 60.6% had limited contributions from vendors or were still in protocol development. Vasculopathy differentiation (94.4%), cryptogenic stroke (41.3%), aneurysm (38.0%), and atherosclerosis (37.6%) evaluation were the most common indications. For those not performing vessel wall MR imaging, interpretation (53.1%) or technical (46.4%) expertise, knowledge of applications (50.5%), or limitations of clinician (56.7%) or radiologist (49.0%) interest were the most common reasons. If technical/expertise obstacles were overcome, 56.4% of those not performing vessel wall MR imaging indicated that they would perform it. Ordering providers most frequently inquiring about vessel wall MR imaging were from stroke neurology (56.5%) and neurosurgery (25.1%), while 34.3% indicated that no providers had inquired. CONCLUSIONS More than 50% of neuroradiology groups use vessel wall MR imaging for intracranial vasculopathy characterization and differentiation, emphasizing the need for additional technical and educational support, especially as clinical vessel wall MR imaging implementation continues to grow.
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Affiliation(s)
- M Mossa-Basha
- From the Department of Radiology (M.M.-B.), University of North Carolina, Chapel Hill, North Carolina .,Department of Radiology (M.M.-B., C.Z.), University of Washington, Seattle, Washington
| | - C Zhu
- Department of Radiology (M.M.-B., C.Z.), University of Washington, Seattle, Washington
| | - C Yuan
- Department of Radiology (C.Y.), University of Utah, Salt Lake City, Utah
| | - L Saba
- University of Cagliari (L.S.), Cagliari, Sardinia, Italy
| | - D A Saloner
- Department of Radiology and Biomedical Imaging (D.A.S.), University of California San Francisco, San Francisco, California
| | - M Edjlali
- Department of Radiology (M.E.), AP-HP, Laboratoire d'imagerie Biomédicale Multimodale (BioMaps), Paris-Saclay University, Paris, France
| | - N V Stence
- Department of Radiology (N.V.S.), Children's Hospital of Colorado, Aurora, Colorado
| | - D M Mandell
- Joint Department of Medical Imaging (D.M.M., D.J.M.), University Health Network, Toronto, Ontario, Canada
| | - J M Romero
- Department of Radiology (J.M.R.), Massachusetts General Hospital, Boston, Massachusetts
| | - Y Qiao
- Department of Radiology (Y.Q., B.A.W.), Johns Hopkins University, Baltimore, Maryland
| | - D J Mikulis
- Joint Department of Medical Imaging (D.M.M., D.J.M.), University Health Network, Toronto, Ontario, Canada
| | - B A Wasserman
- Department of Radiology (Y.Q., B.A.W.), Johns Hopkins University, Baltimore, Maryland.,Department of Radiology (B.A.W.), University of Maryland, Baltimore, Maryland
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Zhao M, Liu X, Yuan C, Zheng W, Zhang D, Long Q, Li J, Han T, Xu L, Li H, Li X, Shi S. 16P Camrelizumab monotherapy or plus apatinib for PD-L1-positive advanced pulmonary sarcomatoid carcinoma: A single-arm, open-label, multicenter, phase II study. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.02.025] [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: 11/01/2022] Open
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16
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Chi DX, Li N, Zhou WJ, Yuan C, Xie M, Li Z, Wang R, Qu CX, Li XY, Li SL, Yang L, Wang DX. [Effects of postoperative urine protein levels on predicting acute kidney injury in critically ill patients undergoing non-cardiac surgery]. Zhonghua Yi Xue Za Zhi 2022; 102:336-343. [PMID: 35092974 DOI: 10.3760/cma.j.cn112137-20210719-01607] [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: 06/14/2023]
Abstract
Objective: To investigate the predictive value of postoperative urine protein level in critically ill patients undergoing non-cardiac surgery with acute kidney injury (AKI). Methods: A total of 661 critically ill patients undergoing non-cardiac surgery, who visited the Department of Critical Care Medicine of Peking University First Hospital from May 20, 2019 to November 24, 2020, were enrolled in this prospective study. The clinical data of the patient's age, gender, body mass index, laboratory examination, surgical status, etc. were collected. AKI diagnostic criteria of the 2012 KDIGO guidelines were used to diagnose the occurrence of AKI after surgery. The independent predictors of AKI were determined by multivariate logistic regression. Results: The age of this patient cohort was (69±15) years. The prevalence of AKI was 45.4% (300/661). Multivariate logistic regression showed that urine protein semi-quantitative ≥2+(OR=2.62, 95%CI: 1.05-6.56, P=0.039) was independent factor for postoperative AKI in critically ill patients undergoing non-cardiac surgery, other independent factors include higher age (OR=1.04, 95%CI: 1.02-1.06, P=0.001), higher body mass index (BMI) (OR=1.12, 95%CI: 1.04-1.21, P=0.004), lower plasma hemoglobin level (OR=0.98, 95%CI: 0.97-1.00, P=0.019), lower central venous pressure (OR=0.89, 95%CI: 0.83-0.97, P=0.005) and lower total hypotension time (OR=1.01, 95%CI: 1.00-1.01, P=0.041). Conclusions: Urine protein semi-quantitative ≥2+after surgery is an independent predictive factor for the occurrence of postoperative AKI in critically ill patients undergoing non-cardiac surgery. It is important to check urine routine immediately after surgery to detect and deal with high-risk patients.
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Affiliation(s)
- D X Chi
- Department of Critical Care Medicine, Peking University First Hospital, Beijing 100034, China
| | - N Li
- Department of Critical Care Medicine, Peking University First Hospital, Beijing 100034, China
| | - W J Zhou
- Department of Critical Care Medicine, Peking University First Hospital, Beijing 100034, China
| | - C Yuan
- Department of Critical Care Medicine, Peking University First Hospital, Beijing 100034, China
| | - M Xie
- Department of Critical Care Medicine, Peking University First Hospital, Beijing 100034, China
| | - Z Li
- Department of Nephrology, Peking University First Hospital, Beijing 100034, China
| | - R Wang
- Clinical Laboratory, Peking University First Hospital, Beijing 100034, China
| | - C X Qu
- Clinical Laboratory, Peking University First Hospital, Beijing 100034, China
| | - X Y Li
- Department of Biostatistics, Peking University First Hospital, Beijing 100034, China
| | - S L Li
- Department of Critical Care Medicine, Peking University First Hospital, Beijing 100034, China
| | - L Yang
- Department of Nephrology, Peking University First Hospital, Beijing 100034, China
| | - D X Wang
- Department of Anesthesiology,Peking University First Hospital, Beijing 100034, China
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17
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Pan W, Chen H, Ni C, Zong G, Yuan C, Yang M. Sex-Specific Associations of Dietary Iron Intake with Brain Iron Deposition on Imaging and Incident Dementia: A Prospective Cohort Study. J Nutr Health Aging 2022; 26:954-961. [PMID: 36259584 DOI: 10.1007/s12603-022-1852-2] [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: 10/17/2022]
Abstract
OBJECTIVES The study aimed to evaluate the association of dietary iron intake with incident dementia and brain iron deposition. DESIGN/SETTING/PARTICIPANTS We included dementia-free participants from the UK Biobank who completed at least one 24-hour dietary recall at study baseline (2009-2012) and were followed up to 2021. Incident dementia was determined through linkage to medical records and death registries. Brain MRI was conducted in a subgroup of participants since 2014, with T2* measurements being used as indicators of brain iron deposition. MEASUREMENTS Cox proportional hazard models were used to assess the associations of high (top quintile) and low (bottom quintile) versus medium (quintile 2 to 4) level of dietary iron intake with incident dementia, respectively. Linear regression was applied to assess the relations between dietary iron intake and brain T2* measurements. RESULTS During follow-up (mean = 9.5 years), a total of 1,454 participants (650 women and 804 men) developed dementia among 191,694 participants (55.0% female; mean age, 56.2 years). When adjusted for sociodemographic, lifestyle, and other dietary factors, participants with low dietary iron intake (< 10.05 mg/day) had a significantly higher dementia risk (hazard ratio [HR], 1.50, 95% confidence interval [CI], 1.19-1.89), while the relation for high intake (> 16.92 mg/day) was non-significant (HR, 1.16, 95% CI, 0.92-1.46). A significant gender difference (P-interaction < 0.001) was observed, with a U-shaped association in male participants (HR for low vs. medium, 1.56, 95% CI, 1.14-2.13; HR for high vs. medium, 1.39, 95% CI, 1.03 - 1.88; P-nonlinearity < 0.001) and no significant association in females, regardless of their menopause status. In general, dietary iron intake was not related to T2* measurements of iron deposition in most brain regions. CONCLUSION Our findings suggested a U-shape relationship between dietary iron intake and risk of dementia among males, but not females.
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Affiliation(s)
- W Pan
- Min Yang, School of Public Health, Zhejiang University School of Medicine, 866 Yu-hang-tang RD, Hangzhou, China, Tel: 13516852440, ; Changzheng Yuan, School of Public Health, Zhejiang University School of Medicine, 866 Yu-hang-tang RD, Hangzhou, China, Tel: 17326860291, E-mail:
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18
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Li C, Yan C, Sun Q, Wang J, Yuan C, Mou Y, Shan S, Zhao X. Proteomic profiling of Arachis hypogaea in response to drought stress and overexpression of AhLEA2 improves drought tolerance. Plant Biol (Stuttg) 2022; 24:75-84. [PMID: 34694687 DOI: 10.1111/plb.13351] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/24/2021] [Accepted: 09/09/2021] [Indexed: 06/13/2023]
Abstract
Drought is the main factor restricting peanut growth, but the molecular mechanism underlying peanut drought tolerance remains unclear. Herein, the seedling stage of drought-resistant peanut cultivar J11 was subjected to drought stress, and its proteomic profile was systematically analysed by isobaric tags for relative and absolute quantification (iTRAQ), the results of which were further complemented with our previous transcriptome results. A total of 4,018 proteins were identified by proteomic analysis, which revealed that the expression levels of 69 proteins were altered under drought stress. Among the differentially expressed proteins (DEPs), 50 were upregulated, and 19 were downregulated. The most enriched metabolic pathways for these DEPs were those involving phenylpropanoid biosynthesis, flavonoid biosynthesis, and plant hormone signal transduction. The proteomic data and previous transcriptome results revealed 44 groups of genes/proteins with the same expression trend, including a LEA (Late embryogenesis abundant) gene, AhLEA2. Our present study showed that overexpression of the AhLEA2 gene enhanced the drought resistance of transgenic Arabidopsis plants, and the activities of related antioxidant enzymes in the transgenic plants significantly changed. The AhLEA2 gene was found to be located in the cytoplasm and cell membrane by subcellular localization experiments. This work systematically analysed the differentially expressed proteins in peanut in response to drought stress, providing important candidates for further functional analysis of the stress response of peanut. Our results also indicated that AhLEA2 plays an important role in the peanut response to drought stress.
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Affiliation(s)
- C Li
- Department of Breeding, Shandong Peanut Research Institute, Qingdao, China
| | - C Yan
- Department of Breeding, Shandong Peanut Research Institute, Qingdao, China
| | - Q Sun
- Department of Breeding, Shandong Peanut Research Institute, Qingdao, China
| | - J Wang
- Department of Breeding, Shandong Peanut Research Institute, Qingdao, China
| | - C Yuan
- Department of Breeding, Shandong Peanut Research Institute, Qingdao, China
| | - Y Mou
- Department of Breeding, Shandong Peanut Research Institute, Qingdao, China
| | - S Shan
- Department of Breeding, Shandong Peanut Research Institute, Qingdao, China
| | - X Zhao
- Department of Breeding, Shandong Peanut Research Institute, Qingdao, China
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Malde S, Grover S, Raj S, Yuan C, Nair R, Thurairaja R, Khan MS. 728 A Systematic Review of The Efficacy and Safety of Outpatient Bladder Tumour Ablation. Br J Surg 2021. [DOI: 10.1093/bjs/znab259.935] [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: 11/14/2022]
Abstract
Abstract
Introduction
The management of recurrent non-muscle-invasive bladder cancer (NMIBC) typically requires repeated transurethral resections under general anaesthesia. This is costly and results in poor health-related quality-of-life for patients. Outpatient-based laser ablation and diathermy to recurrent tumours could reduce morbidity and cost of managing NMIBC. This systematic review evaluates the safety and efficacy of outpatient-based diathermy or laser ablation for recurrent NMIBC.
Method
The EMBASE, MEDLINE and Cochrane Library were searched until June 2020. All studies evaluating the use of outpatient diathermy or laser ablation for NMIBC were included. The quality of evidence and risk of bias were assessed using the GRADE and ROBINS-I tools, respectively.
Results
From 1328 studies identified, 17 studies (1584 patients) were included. Overall, the majority of tumours (80%) were low-grade (G1 and G2). Laser ablation and diathermy resulted in a mean recurrence rate of 47% and 40% at 20-31 months follow-up, respectively, with a mean progression rate of 3-11%. Both procedures were well-tolerated with low pain scores (mean score of 1) and low periprocedural complication rates. However, the overall quality of evidence of low.
Conclusions
This review demonstrates that both procedures have good short-term efficacy in patients with low-grade NMIBC. The procedures are well-tolerated with low complication rates and importantly, reduce the need for intervention under general anaesthesia. These findings can aid patient counselling regarding less invasive treatment options, avoiding the morbidity of transurethral resection. Future randomised studies with standardised risk stratification and outcome measures are required to add to the quality of evidence.
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Affiliation(s)
- S Malde
- Department of Urology, Guy’s and St Thomas’ NHS Foundation Trust, London, United Kingdom
| | - S Grover
- King's College London, London, United Kingdom
| | - S Raj
- King's College London, London, United Kingdom
| | - C Yuan
- Department of Medicine, Health Science Centre, McMaster University, Hamilton, ON, Canada
| | - R Nair
- Department of Urology, Guy's and St Thomas' NHS Foundation Trust, London, United Kingdom
| | - R Thurairaja
- Department of Urology, Guy’s and St Thomas’ NHS Foundation Trust, London, United Kingdom
| | - M S Khan
- Department of Urology, Guy’s and St Thomas’ NHS Foundation Trust, London, United Kingdom
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20
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Saba L, Brinjikji W, Spence JD, Wintermark M, Castillo M, Borst GJD, Yang Q, Yuan C, Buckler A, Edjlali M, Saam T, Saloner D, Lal BK, Capodanno D, Sun J, Balu N, Naylor R, Lugt AVD, Wasserman BA, Kooi ME, Wardlaw J, Gillard J, Lanzino G, Hedin U, Mikulis D, Gupta A, DeMarco JK, Hess C, Goethem JV, Hatsukami T, Rothwell P, Brown MM, Moody AR. Roadmap Consensus on Carotid Artery Plaque Imaging and Impact on Therapy Strategies and Guidelines: An International, Multispecialty, Expert Review and Position Statement. AJNR Am J Neuroradiol 2021; 42:1566-1575. [PMID: 34326105 DOI: 10.3174/ajnr.a7223] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2020] [Accepted: 01/26/2021] [Indexed: 12/19/2022]
Abstract
Current guidelines for primary and secondary prevention of stroke in patients with carotid atherosclerosis are based on the quantification of the degree of stenosis and symptom status. Recent publications have demonstrated that plaque morphology and composition, independent of the degree of stenosis, are important in the risk stratification of carotid atherosclerotic disease. This finding raises the question as to whether current guidelines are adequate or if they should be updated with new evidence, including imaging for plaque phenotyping, risk stratification, and clinical decision-making in addition to the degree of stenosis. To further this discussion, this roadmap consensus article defines the limits of luminal imaging and highlights the current evidence supporting the role of plaque imaging. Furthermore, we identify gaps in current knowledge and suggest steps to generate high-quality evidence, to add relevant information to guidelines currently based on the quantification of stenosis.
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Affiliation(s)
- L Saba
- From the Department of Radiology (L.S.), University of Cagliari, Cagliari, Italy
| | | | - J D Spence
- Stroke Prevention and Atherosclerosis Research Centre (J.D.S.), Robarts Research Institute, Western University, London, Ontario, Canada
| | - M Wintermark
- Department of Neuroradiology (M.W.), Stanford University and Healthcare System, Stanford, California
| | - M Castillo
- Department of Radiology (M.C.), University of North Carolina, Chapel Hill, North Carolina
| | - G J D Borst
- Department of Vascular Surgery (G.J.D.B.), University Medical Center Utrecht, Utrecht, the Netherlands
| | - Q Yang
- Department of Radiology (Q.Y.), Xuanwu Hospital, Capital Medical University, Beijing, China
| | - C Yuan
- Departments of Radiology (C.Y., J.S., N.B.)
| | - A Buckler
- Elucid Bioimaging (A.B.), Boston, Massachusetts
| | - M Edjlali
- Department of Neuroradiology (M.E.), Université Paris-Descartes-Sorbonne-Paris-Cité, IMABRAIN-INSERM-UMR1266, DHU-Neurovasc, Centre Hospitalier Sainte-Anne, Paris, France
| | - T Saam
- Department of Radiology (T.S.), University Hospital, Ludwig Maximilian University of Munich, Munich, Germany.,Radiologisches Zentrum (T.S.), Rosenheim, Germany
| | - D Saloner
- Departments of Radiology and Biomedical Imaging (D.S., C.H.), University of California San Francisco, San Francisco, California
| | - B K Lal
- Department of Vascular Surgery (B.K.L.), University of Maryland School of Medicine, Baltimore, Maryland
| | - D Capodanno
- Division of Cardiology (D.C.), A.O.U. Policlinico "G. Rodolico-San Marco," University of Catania, Italy
| | - J Sun
- Departments of Radiology (C.Y., J.S., N.B.)
| | - N Balu
- Departments of Radiology (C.Y., J.S., N.B.)
| | - R Naylor
- The Leicester Vascular Institute (R.N.), Glenfield Hospital, Leicester, UK
| | - A V D Lugt
- Department of Radiology and Nuclear Medicine (A.v.d.L.), Erasmus MC, University Medical Center Rotterdam, Rotterdam, the Netherlands
| | - B A Wasserman
- The Russell H. Morgan Department of Radiology and Radiological Science (B.A.W.), Johns Hopkins Hospital, Baltimore, Maryland
| | - M E Kooi
- Department of Radiology and Nuclear Medicine (M.E.K.), CARIM School for Cardiovascular Diseases, Maastricht University Medical Center, Maastricht, the Netherlands
| | - J Wardlaw
- Centre for Clinical Brain Sciences (J.W.), United Kingdom Dementia Research Institute and Edinburgh Imaging, University of Edinburgh, Edinburgh, UK
| | - J Gillard
- Christ's College (J.G.), Cambridge, UK
| | - G Lanzino
- Neurosurgery (G.L.) Mayo Clinic, Rochester, Minnesota
| | - U Hedin
- Department of Molecular Medicine and Surgery (U.H.), Karolinska Institutet, Stockholm, Sweden.,Department of Vascular Surgery (U.H.), Karolinska University Hospital and Karolinska Institute, Stockholm, Sweden
| | - D Mikulis
- Joint Department of Medical Imaging and the Functional Neuroimaging Laboratory (D.M.), University Health Network, Toronto, Ontario, Canada
| | - A Gupta
- Department of Radiology (A.G.), Weill Cornell Medical College, New York, New York
| | - J K DeMarco
- Walter Reed National Military Medical Center and Uniformed Services University of the Health Sciences (J.K.D.), Bethesda, Maryland
| | - C Hess
- Departments of Radiology and Biomedical Imaging (D.S., C.H.), University of California San Francisco, San Francisco, California
| | - J V Goethem
- Faculty of Biomedical Sciences (J.V.G.), University of Antwerp, Antwerp, Belgium
| | - T Hatsukami
- Surgery (T.H.), University of Washington, Seattle, Washington
| | - P Rothwell
- Centre for Prevention of Stroke and Dementia (P.R.), Nuffield Department of Clinical Neurosciences, John Radcliffe Hospital, University of Oxford, UK
| | - M M Brown
- Stroke Research Centre (M.M.B.), Department of Brain Repair and Rehabilitation, University College of London Queen Square Institute of Neurology, University College London, UK
| | - A R Moody
- Department of Medical Imaging (A.R.M.), University of Toronto, Toronto, Ontario, Canada
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21
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Zhou L, Han YF, Yuan C, Duan ZQ. Screening and bioinformatics analysis of cellular proteins interacting with chicken bromodomain-containing protein 2 in DF-1 cells. Br Poult Sci 2021; 62:810-819. [PMID: 34152239 DOI: 10.1080/00071668.2021.1943311] [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] [Indexed: 10/21/2022]
Abstract
1. Bromodomain-containing protein 2 (BRD2) is an important member of the BET protein family, which can specifically bind histone acetylated lysine to participate in gene transcriptional regulation, chromatin remodelling, cell proliferation and apoptosis. The following investigation of cellular proteins interacting with chBRD2 will be helpful in understanding the new functions of chBRD2 and the mechanism of NDV replication.2. The recombinant eukaryotic expression vector pEGFP-chBRD2 and empty vector pEGFP-C1 were transfected into DF-1 cells to overexpress GFP-chBRD2 and GFP, respectively. GO annotation, KEGG pathway, and protein-protein interaction network were used to analyse the cellular proteins interacting with chBRD2. In addition, one targeted protein was selected to verify its interaction with chBRD2 using fluorescent co-localisation and Co-IP.3. A total of 225 cellular proteins were identified that potentially interact with chBRD2. GO analysis showed that these play key roles in gene transcriptional regulation, cell cycle and development, immunity and viral infection. Further KEGG pathway analysis showed that these proteins were mainly involved in genetic information processing, immune system, cellular processes and translation. In addition, one targeted cellular protein chicken matrin 3 (chMATR3) was also identified as chBRD2 complex using both fluorescence co-localisation and Co-IP analysis.4. This study presents the interactome data of chBRD2 protein in DF-1 cells, which provides new information to understand the functions of chBRD2 and new targets for further investigating the replication and pathogenesis of NDV.
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Affiliation(s)
- L Zhou
- Key Laboratory of Animal Genetics, Breeding and Reproduction in the Plateau Mountains Region, Ministry of Education (Guizhou University)/Key Laboratory of Animal Genetics, Breeding and Reproduction in Guizhou Province, Guiyang, China.,College of Animal Sciences, Guizhou University, Guiyang, China
| | - Y F Han
- Key Laboratory of Animal Genetics, Breeding and Reproduction in the Plateau Mountains Region, Ministry of Education (Guizhou University)/Key Laboratory of Animal Genetics, Breeding and Reproduction in Guizhou Province, Guiyang, China.,College of Animal Sciences, Guizhou University, Guiyang, China
| | - C Yuan
- Key Laboratory of Animal Genetics, Breeding and Reproduction in the Plateau Mountains Region, Ministry of Education (Guizhou University)/Key Laboratory of Animal Genetics, Breeding and Reproduction in Guizhou Province, Guiyang, China.,College of Animal Sciences, Guizhou University, Guiyang, China
| | - Z Q Duan
- Key Laboratory of Animal Genetics, Breeding and Reproduction in the Plateau Mountains Region, Ministry of Education (Guizhou University)/Key Laboratory of Animal Genetics, Breeding and Reproduction in Guizhou Province, Guiyang, China.,College of Animal Sciences, Guizhou University, Guiyang, China
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22
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Pang K, Campi R, Omar M, Yuan C, Karavitakis M, Manso M, Arteaga S, Nic An Riogh A, O’Connor E, Sakalis V, Sihra N, Tzelves L, Arlandis S, Bo K, Costantini E, Farag F, Groen J, Lapitan M, Nambiar A, Peyronnet B, Phé V, Van Der Vaart C, Harding C. What are the different diagnostic tests for female Bladder Outlet Obstruction (fBOO)? A systematic review from the European Association of Urology non-neurogenic female LUTS Guidelines Panel. Eur Urol 2021. [DOI: 10.1016/s0302-2838(21)00689-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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23
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Peyronnet B, Omar M, O’Connor E, Tzelves L, Nic An Riogh A, Manso M, Yuan C, Arlandis S, Bo K, Costantini E, Farag F, Groen J, Nambiar A, Phé V, Van Der Vaart H, N’Dow J, Harding C, Lapitan M. Benefits and harms of conservative, pharmacological, and surgical management options for women with bladder outlet obstruction: A systematic review from the European Association of Urology non-neurogenic female LUTS guidelines panel. Eur Urol 2021. [DOI: 10.1016/s0302-2838(21)00690-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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24
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Liu B, Han R, Yuan C, Sun H, Chen Z, Tian G, Shi F, Zhang X, Luo P, Jia H. Excitation functions of proton induced reactions on titanium and copper. Appl Radiat Isot 2021; 173:109713. [PMID: 33865051 DOI: 10.1016/j.apradiso.2021.109713] [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: 02/02/2021] [Accepted: 03/28/2021] [Indexed: 10/21/2022]
Abstract
Excitation functions of the Tnati(p,x)S43,47c, V48 and Cnatu(p,x)64Cu, Z62,65n reactions were measured in the energy range of 8.8-18.4 MeV by using the stacked-foil activation technique and off-line gamma spectroscopy. The irradiation was carried out at the superconducting linac of the Institute of Modern Physics, Chinese Academy of Sciences. Besides, the reliability and effectiveness of theoretical data from the TALYS code, recommended data of the International Atomic Energy Agency (IAEA) and evaluated nuclear data of the ENDF/B-VIII.0, JENDL-4.0/HE and PADF-2007 libraries were evaluated and verified by comparing with experimental data. Our experimental results agree with most of the available literature data. TALYS-1.95 code could not reproduce, in most cases, the experimental data. Evaluated nuclear data from the ENDF/B-VIII.0, JENDL-4.0/HE and PADF-2007 libraries are able to reproduce, in most cases, the experimental data trend. Recommended data of the IAEA are in good consistent with our work and most of the available literature data.
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Affiliation(s)
- B Liu
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, 730000, China; School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - R Han
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, 730000, China; School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - C Yuan
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, 730000, China
| | - H Sun
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, 730000, China; School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Z Chen
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, 730000, China; School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing, 100049, China.
| | - G Tian
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, 730000, China
| | - F Shi
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, 730000, China
| | - X Zhang
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, 730000, China; School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - P Luo
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, 730000, China; School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - H Jia
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, 730000, China; School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing, 100049, China
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25
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Yuan C, Huang WY. [Advances in induction therapy drugs of lupus nephritis for children]. Zhonghua Er Ke Za Zhi 2021; 59:71-74. [PMID: 33397011 DOI: 10.3760/cma.j.cn112140-20200629-00673] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- C Yuan
- Department of Nephrology and Rheumatology,Shanghai Children's Hospital, Shanghai Jiao Tong University, Shanghai 200062, China
| | - W Y Huang
- Department of Nephrology and Rheumatology,Shanghai Children's Hospital, Shanghai Jiao Tong University, Shanghai 200062, China
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26
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Ding LZ, Xu J, Yuan C, Teng X, Wu QM. MiR-7a ameliorates spinal cord injury by inhibiting neuronal apoptosis and oxidative stress. Eur Rev Med Pharmacol Sci 2020; 24:11-17. [PMID: 31957813 DOI: 10.26355/eurrev_202001_19890] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE The aim of this study was to investigate the therapeutic effect of microRNA-7a (miR-7a) on spinal cord injured rats and to explore its underlying mechanism in vivo. MATERIALS AND METHODS The spinal cord injury (SCI) model was first established in adult rats. The epicenter of the lesion was treated with miR-7a mimics via intrathecal injection. The Basso-Beattie-Bresnahan (BBB) locomotor rating scale was used to evaluate the functional recovery of hindlimbs in rats within 4 weeks following SCI. Western blotting and qPCR were utilized to detect the apoptosis and oxidative stress in rats treated with or without miR-7a. In addition, the neuron survival and neuro-filament amount were determined using immunofluorescence. RESULTS After SCI and miR-7a treatment, the locomotor recovery of treated rats was significantly improved when compared with rats without treatment. The mitochondrial disorder and cell death were significantly reduced in miR-7a treated rats. Meanwhile, the nuclear transcription factor-κB (NF-κB) pathway was significantly reduced as well. Contrarily, the expression of anti-apoptotic protein Bcl-2 and NF-κB inhibitor I-κB was remarkably elevated in miR-7a treated rats. In addition, up-regulation of miR-7a rescued neurons and maintained the neural structure. CONCLUSIONS The up-regulation of miR-7a alleviated the injury-induced oxidative stress and inhibited apoptosis by down-regulating NF-κB pathway in SCI rats.
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Affiliation(s)
- L-Z Ding
- Department of Orthopedics, Taizhou Central Hospital, Taizhou, China.
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27
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Sun J, Lepor N, Canton G, Contreras L, Hippe D, Isquith D, Balu N, Kedan I, Simonini A, Yuan C, Hatsukami T, Zhao X. Effects of alirocumab on carotid plaque lipid content and inflammation: a time course study using serial vessel wall imaging. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.0204] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
PCSK9 inhibition has emerged as a potent pharmaceutical approach to lowering LDL cholesterol (LDL-C). Monoclonal anti-PCSK9 antibodies have been shown in recent clinical trials to reduce cardiovascular events in patients with atherosclerotic cardiovascular disease, but the underlying mechanisms are not fully understood. Meanwhile, circulatory inflammation markers were not reduced with PCSK9 inhibitors, thus their effects on plaque inflammation remain elusive. Vessel wall imaging with magnetic resonance (VW-MRI) has enabled serial monitoring of changes in carotid plaque lipid content and inflammation noninvasively that correlates with coronary and carotid vascular events.
Purpose
Using serial VW-MRI, we studied the effects and time course of PCSK9 inhibition with alirocumab on carotid plaque lipid content and inflammation.
Methods
Patients with LDL-C ≥70 mg/dl on ≤70 mg per week atorvastatin or an equivalent (due to statin intolerance or treating-physician discretion) and soft carotid plaque(s) identified on ultrasound underwent carotid VW-MRI. Those with confirmed lipid-rich plaque(s) on VW-MRI received alirocumab (150 mg subcutaneously every other week) and were re-scanned at 3, 6, and 12 months after treatment. Carotid VW-MRI included pre- and post-contrast images for measuring percent lipid-rich necrotic core volume (%LRNC) and dynamic contrast-enhanced images for measuring the extravasation rate of gadolinium contrast (Ktrans, reflecting tissue blood flow, endothelial surface area, and microvessel permeability), a marker of plaque inflammation. The co-primary endpoints were changes in %LRNC and Ktrans at 12 months from baseline.
Results
Of 31 patients enrolled, 27 completed the study (mean age: 69±9; male: 67%; on statins and/or ezetimibe: 41%; median LDL-C: 120 mg/dl [interquartile range: 99, 158]). Alirocumab induced a 59% reduction in LDL-C (p<0.001) on average at 3 months to a median of 54 mg/dl (interquartile range: 29, 69), which was maintained at later time points. From 9.8% at baseline, %LRNC was progressively reduced to 8.4% at 3 months, 7.5% at 6 months, and 7.2% at 12 months, representing a rapid 14% reduction (p=0.032) at 3 months and a total reduction of 20% (p=0.019) at 12 months. From 0.07±0.02 min-1 at baseline, Ktrans was not reduced at 3 or 6 months but was significantly reduced by 17% (p=0.029) at 12 months to 0.06±0.02 min-1. No significant changes in lumen or wall area were observed during the study period.
Conclusions
Serial VW-MRI documented plaque-stabilizing effects of PCSK9 inhibition with alirocumab, including plaque delipidation and attenuation of plaque inflammation. The reduction in plaque lipid content was apparent as early as 3 months. The reduction in Ktrans was not seen until 12 months of treatment and may indicate a later effect on microvascular structure and/or function. This observation represents the earliest time course of plaque morphology modification by non-statin therapy reported to date.
Funding Acknowledgement
Type of funding source: Private grant(s) and/or Sponsorship. Main funding source(s): The study was funded by an investigator-initiated grant from Regeneron and Sanofi.
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Affiliation(s)
- J Sun
- University of Washington, Seattle, United States of America
| | - N.E Lepor
- Westside Medical Associates of Los Angeles, Beverly Hills, United States of America
| | - G Canton
- University of Washington, Seattle, United States of America
| | - L Contreras
- Westside Medical Associates of Los Angeles, Beverly Hills, United States of America
| | - D.S Hippe
- University of Washington, Seattle, United States of America
| | - D.A Isquith
- University of Washington, Seattle, United States of America
| | - N Balu
- University of Washington, Seattle, United States of America
| | - I Kedan
- Cedars-Sinai Smidt Heart Institute, Los Angeles, United States of America
| | - A.A Simonini
- Cedars-Sinai Smidt Heart Institute, Los Angeles, United States of America
| | - C Yuan
- University of Washington, Seattle, United States of America
| | - T.S Hatsukami
- University of Washington, Seattle, United States of America
| | - X.Q Zhao
- University of Washington, Seattle, United States of America
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Geng T, Pan Y, Liu ZZ, Yuan C, Wang P, Meng X. Time-dependent Microhardness Gradients of Self-adhesive Resin Cements Under Dual- and Self-curing Modes. Oper Dent 2020; 45:E280-E288. [PMID: 33215201 DOI: 10.2341/19-006-l] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/15/2019] [Indexed: 11/23/2022]
Abstract
CLINICAL RELEVANCE Acid-functional monomers in self-adhesive resin cements may decrease their self-curing polymerization ability. Light irradiation optimizes polymerization performance. SUMMARY Purpose: The aim of this study was to investigate Knoop microhardness of self-adhesive resin cements under dual- and self-curing modes in simulated canals for describing the polymerization behavior.Methods and Materials: Slots in lightproof silicone cylinders with one open end were filled with the following eight materials: a traditional resin cement (Duolink), a core build-up resin material (MultiCore Flow), and six self-adhesive resin cements (RelyX Unicem 2, G-Cem Automix, Maxcem, Biscem, Multilink Speed, and PermaCem 2.0). The resins were exposed to light through the open end and then stored in a lightproof box. The Knoop hardness gradient for each resin was measured after 1 hour and 120 hours. Surface readings were obtained at 1-mm intervals from 1 mm to 10 mm away from the open ends. The data were analyzed by two-way analysis of variance and the Student-Newman-Keuls test (α=0.05).Results: All the resin materials had stable Knoop hardness numbers (KHNs) at a certain depth; their KHNs in the self-curing mode did not change (p>0.05). The region above this certain depth was regarded as having undergone the dual-curing mode, and the KHN decreased gradually with depth (p<0.05). Between 1 and 120 hours postexposure, the ratio of the KHN at a 5-mm depth (self-cured) to that at a 1-mm depth (dual-cured) increased in Duolink and MultiCore Flow. However, the ratios of the six adhesive resin cements varied.Conclusion: Without light, most self-adhesive resin cements differed from traditional dual-cured resin materials in terms of Knoop micro-hardness, and they had a lesser capacity for chemical-induced curing.
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Li X, Xing L, Lai R, Yuan C, Humbert P. Literature mapping: association of microscopic skin microflora and biomarkers with macroscopic skin health. Clin Exp Dermatol 2020; 46:21-27. [PMID: 32786033 PMCID: PMC7754415 DOI: 10.1111/ced.14353] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2019] [Revised: 03/09/2020] [Accepted: 05/27/2020] [Indexed: 10/27/2022]
Abstract
Associations between skin microbes or biomarkers and pathological conditions have been reported in the literature. However, there is a lack of clarity on the interaction between the coexistence of common skin microbes with skin physiology and subsequent development of clinical symptoms, and the role of biomarkers in mediating these changes before the development of skin disease. In this review, we aim to identify areas in which extensive research for the studied factors has already been conducted, and which research areas are under-represented. The SciFinder database was searched for articles containing key words including specific skin microbes, biomarkers, skin physiology and diseases from the beginning of the SciFinder data record to 26 April 2016, and we included an additional relevant recent publication from our group. Among the 8000 + articles selected, the frequency of keyword pairs between two roles [microscopic markers (microflora or biomarkers) and reactions (skin physiology or clinical symptoms, or skin disease)] was investigated. Associated research between the individual factors such as skin microflora or biomarkers (chosen based on our earlier publication) and specific biophysical parameters, symptoms or skin disease was identified. The present research heatmap emphasizes the significance of a structured review of research on concerned factor associations to identify early/subclinical clues that can be used to prevent progression to overt skin disease with the help of precise skin care or early intervention, as indicated by skin microflora, biomarkers and an interactive skin biophysics profile. The findings provide a novel approach to explore such associations and may guide future research directed towards predicting disease from early/subclinical symptoms.
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Affiliation(s)
- X Li
- Clinical Science APAC, Johnson & Johnson (China) Ltd, Shanghai Technology and Research Center, Shanghai, China
| | - L Xing
- Clinical Science APAC, Johnson & Johnson (China) Ltd, Shanghai Technology and Research Center, Shanghai, China
| | - R Lai
- External Innovation, Johnson & Johnson (China) Ltd, Minhang District, Shanghai, China
| | - C Yuan
- Skin and Cosmetic Research Department, Shanghai Skin Disease Hospital, Shanghai, China
| | - P Humbert
- Department of Dermatology, Research and Clinic Centre on the Tegument, Clinical Investigation Center, Besançon University Hospital, Besançon, France.,University of Franche-Comté, Inserm U1098, Besançon, France
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Bates A, Lumsden T, Ayres J, Schoots I, Willemse P, Yuan C, Van Den Bergh R, Grummet J, Van Der Poel H, Rouvière O, Lam T, Cornford P, Mottet N. EAU PCa Guideline Panel: Systematic review of focal ablative therapy for localised prostate cancer compared with standard therapies. EUR UROL SUPPL 2020. [DOI: 10.1016/s2666-1683(20)33809-x] [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] Open
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31
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Yuan C, Han J, Chang H, Xiao W. Arabidopsis CK2 family gene CKB3 involved in abscisic acid signaling. BRAZ J BIOL 2020; 81:318-325. [PMID: 32491060 DOI: 10.1590/1519-6984.225345] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2019] [Accepted: 12/14/2019] [Indexed: 11/22/2022] Open
Abstract
CKB3 is a regulatory (beta) subunit of CK2. In this study Arabidopsis thaliana homozygous T-DNA mutant ckb3 was studied to understand the role of CKB3 in abscisic acid (ABA) signaling. The results shown: CKB3 was expressed in all organs and the highest expression in the seeds, followed by the root. During seed germination and root growth the ckb3 mutant showed reduced sensitivity to ABA. The ckb3 mutant had more stomatal opening and increased proline accumulation and leaf water loss. The expression levels of number of genes in the ABA regulatory network had changed. This study demonstrates that CKB3 is an ABA signaling-related gene and may play a positive role in ABA signaling.
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Affiliation(s)
- C Yuan
- College of Life Science, Luoyang Normal University, Luoyang, PR China
| | - J Han
- College of Life Science, Luoyang Normal University, Luoyang, PR China
| | - H Chang
- College of Life Science and Engineering, Handan University, Handan, PR China
| | - W Xiao
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Biology, Hunan University, Changsha, PR China
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Abstract
Salivary microbiota is a typical habitat of the human microbiome. This study intended to use salivary microbiota as a model aiming to systematically address the influence of collection methods and temporal dynamics on the human microbiota compared to personal specificity. We carried out a supervised short-term longitudinal study to evaluate the influence of the change of collection methods and sampling time point on salivary microbiota in 10 systemically and orally healthy individuals with certain confounding factors (sex, oral and general health state, medication history, physical exercise, diet, and oral hygiene behavior) controlled before and during the sampling period. The microbial profiles were analyzed by 16S rDNA V3 to V4 hypervariable region amplicon sequencing. The taxonomic structure represented by the dominant species and the weighted UniFrac distance algorithm were used to demonstrate the individual specificity and the intraindividual variation introduced by the change of collection method and sampling time point. The findings suggested individual specificity existed in salivary microbiota from individuals with similar oral and general health status. The intraindividual variation brought by the change of collection method or sampling time point might introduce remarkable perturbation with the personal specificity. Insights into the intraindividual variation and personal specificity of salivary microbiota will enhance our understanding in salivary microbiota-related research. We recommend keeping collection conditions consistent within a study to avoid interference brought by the sampling. The strategy of repeated sampling at multiple time points as representative samples, as well as thorough interpretation of the complex relationships and causality between microbiome composition and disease without the interference of temporal dynamics, is optimal for research exploring the relationship between the salivary microbiome and disease.
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Affiliation(s)
- C Zhu
- Department of Preventive Dentistry, Peking University School and Hospital of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing, China
| | - C Yuan
- Department of Preventive Dentistry, Peking University School and Hospital of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing, China
| | - F Q Wei
- Department of Preventive Dentistry, Peking University School and Hospital of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing, China
| | - X Y Sun
- Department of Preventive Dentistry, Peking University School and Hospital of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing, China
| | - S G Zheng
- Department of Preventive Dentistry, Peking University School and Hospital of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing, China
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Yang D, Liu Y, Han Y, Li D, Wang W, Li R, Yuan C, Zhao X. Signal of Carotid Intraplaque Hemorrhage on MR T1-Weighted Imaging: Association with Acute Cerebral Infarct. AJNR Am J Neuroradiol 2020; 41:836-843. [PMID: 32273265 DOI: 10.3174/ajnr.a6498] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2019] [Accepted: 02/29/2020] [Indexed: 01/28/2023]
Abstract
BACKGROUND AND PURPOSE Identifying the mere presence of carotid intraplaque hemorrhage would be insufficient to accurately discriminate the presence of acute cerebral infarct. We aimed to investigate the association between signal intensity ratios of carotid intraplaque hemorrhage on T1-weighted MR imaging and acute cerebral infarct in patients with hemorrhagic carotid plaques using MR vessel wall imaging. MATERIALS AND METHODS Symptomatic patients with carotid intraplaque hemorrhage were included. The signal intensity ratios of carotid intraplaque hemorrhage against muscle on T1-weighted, TOF, and MPRAGE images were measured. The acute cerebral infarct was determined on the hemisphere ipsilateral to the carotid intraplaque hemorrhage. The association between signal intensity ratios of carotid intraplaque hemorrhage and acute cerebral infarct was analyzed. RESULTS Of 109 included patients (mean, 66.8 ± 9.9 years of age; 96 men), 40 (36.7%) had acute cerebral infarct. Patients with acute cerebral infarct had significantly higher signal intensity ratios of carotid intraplaque hemorrhage on T1-weighted images than those without (Median, 1.44; 25-75 Percentiles, 1.14-1.82 versus Median, 1.27; 25-75 Percentiles, 1.06-1.55, P = .022). Logistic regression analysis revealed that the signal intensity ratio of carotid intraplaque hemorrhage on T1-weighted images was significantly associated with acute cerebral infarct before (OR, 4.08; 95% CI, 1.34-12.40; P = .013) and after (OR, 3.34; 95% CI, 1.08-10.31; P = .036) adjustment for clinical confounding factors. However, this association was not significant when further adjusted for occlusion of the carotid artery (P = .058) and volumes of intraplaque hemorrhage and lipid-rich necrotic core (P = .458). CONCLUSIONS The signal intensity ratio of carotid intraplaque hemorrhage on T1-weighted images is associated with acute cerebral infarct in symptomatic patients with carotid hemorrhagic plaques. This association is independent of traditional risk factors but not of the size of plaque composition. The possibility of applying T1 signals of carotid intraplaque hemorrhage to predict subsequent cerebrovascular ischemic events needs to be prospectively verified.
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Affiliation(s)
- D Yang
- From the Beijing Institute of Brain Disorders (D.Y., Y.H., D.L.), Laboratory of Brain Disorders, Ministry of Science and Technology, Collaborative Innovation Center for Brain Disorders, Capital Medical University, Beijing, China.,Department of Biomedical Engineering (D.Y., Y.H., D.L., R.L., X.Z.), Center for Biomedical Imaging Research, Tsinghua University School of Medicine, Beijing, China
| | - Y Liu
- Department of Radiology (Y.L., W.W.), The Affiliated Hospital of Yangzhou University, Yangzhou University, Yangzhou, China
| | - Y Han
- From the Beijing Institute of Brain Disorders (D.Y., Y.H., D.L.), Laboratory of Brain Disorders, Ministry of Science and Technology, Collaborative Innovation Center for Brain Disorders, Capital Medical University, Beijing, China.,Department of Biomedical Engineering (D.Y., Y.H., D.L., R.L., X.Z.), Center for Biomedical Imaging Research, Tsinghua University School of Medicine, Beijing, China
| | - D Li
- From the Beijing Institute of Brain Disorders (D.Y., Y.H., D.L.), Laboratory of Brain Disorders, Ministry of Science and Technology, Collaborative Innovation Center for Brain Disorders, Capital Medical University, Beijing, China.,Department of Biomedical Engineering (D.Y., Y.H., D.L., R.L., X.Z.), Center for Biomedical Imaging Research, Tsinghua University School of Medicine, Beijing, China
| | - W Wang
- Department of Radiology (Y.L., W.W.), The Affiliated Hospital of Yangzhou University, Yangzhou University, Yangzhou, China
| | - R Li
- Department of Biomedical Engineering (D.Y., Y.H., D.L., R.L., X.Z.), Center for Biomedical Imaging Research, Tsinghua University School of Medicine, Beijing, China
| | - C Yuan
- Department of Radiology (C.Y.), University of Washington, Seattle, Washington
| | - X Zhao
- Department of Biomedical Engineering (D.Y., Y.H., D.L., R.L., X.Z.), Center for Biomedical Imaging Research, Tsinghua University School of Medicine, Beijing, China
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Affiliation(s)
- F. Zhang
- College of Life Sciences Anhui Normal University Wuhu Anhui China
| | - C. Yuan
- College of Life Sciences Anhui Normal University Wuhu Anhui China
| | - A. S. Feng
- Department of Molecular and Integrative Physiology & Beckman Institute University of Illinois at Urbana‐Champaign Urbana IL USA
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Yuan C, Grimshaw R, Johnson E, Whitfield A. Generation of nonlinear internal waves by flow over topography: Rotational effects. Phys Rev E 2020; 101:033104. [PMID: 32289918 DOI: 10.1103/physreve.101.033104] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2019] [Accepted: 02/13/2020] [Indexed: 06/11/2023]
Abstract
We use the forced Ostrovsky equation to investigate the generation of internal waves excited by a constant background current flowing over localized topography in the presence of background rotation. As is now well known in the absence of background rotation, the evolution scenarios fall into three cases, namely subcritical, transcritical, and supercritical. Here an analysis of the linearized response divides the waves into steady and unsteady waves. In all three cases, steady waves occur downstream but no steady waves can occur upstream, while unsteady waves can arise upstream only when there is a negative minimum of the group velocity. The regions occupied by the steady and unsteady waves are determined by their respective group velocities. When the background current is increased, the wave number of the steady waves decreases. In addition, the concavity (canyon or sill), the topographic width, and the relative strength of the rotation play an important role in the generation mechanism. Nonlinear effects modulate the wave amplitude and lead to the emergence of coherent wave packets. All these findings are confirmed by numerical simulations.
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Affiliation(s)
- C Yuan
- School of Mathematical Sciences, Ocean University of China, Qingdao, 266100, China
| | - R Grimshaw
- Department of Mathematics, University College London, London WC1E 6BT, United Kingdom
| | - E Johnson
- Department of Mathematics, University College London, London WC1E 6BT, United Kindom
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Zhang C, Li H, Yuan C, Liu S, Li M, Zhu J, Lin X, Lu Y, Guo X. CKB1 regulates expression of ribosomal protein L10 family gene and plays a role in UV-B response. Plant Biol (Stuttg) 2020; 22 Suppl 1:143-152. [PMID: 30597713 DOI: 10.1111/plb.12954] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/02/2018] [Accepted: 12/22/2018] [Indexed: 06/09/2023]
Abstract
Plastid casein kinase 2 (CK2), which is a major Ser/Thr-specific enzyme in higher organisms, plays an essential role in plant development and diverse abiotic stresses. CKB1 is a regulatory subunit beta of CK2. To expand our understand of functions of the CKB1 gene in Arabidopsis thaliana, protein changes among wild-type (WT) and CKB1 gain- and loss-of-function mutants were compared. Proteins extracted from the CKB1 knockout mutant and overexpressing mutant were compared with Col-0 plants using 2D-PAGE. Proteins regulated by CKB1 were identified with matrix-assisted laser desorption ionisation time-of-flight/time-of-flight mass spectrometry (MALDI-TOF/TOF), and its transcript was verified by qRT-PCR. Bioinformatics analysis, including gene ontology and protein-protein interaction analysis, were employed. The results of mass spectra and bioinformatics analysis suggest that CKB1 may have functions in regulation of the ribosomal protein L10 (RPL10) family and is involved in ultraviolet-B (UV-B) response. Furthermore, qRT-PCR verification showed CKB1 expression was up-regulated by UV-B stress. The expression levels of five genes in the RPL10 family were reduced in the ckb1 T-DNA insertion mutants, whereas they increased in the CKB1 overexpressing mutants under both normal conditions and UV-B treatment. In conclusion, CKB1 has important functions in UV-B radiation stress. Our study implies that CKB1 positively regulates UV-B radiation stress signalling, possibly through modulating expression of the RPL10 family.
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Affiliation(s)
- C Zhang
- College of Life Sciences, Hunan University, Changsha, China
| | - H Li
- College of Life Sciences, Hunan University, Changsha, China
| | - C Yuan
- College of Life Sciences, Hunan University, Changsha, China
| | - S Liu
- College of Life Sciences, Hunan University, Changsha, China
| | - M Li
- College of Life Sciences, Hunan University, Changsha, China
| | - J Zhu
- College of Life Sciences, Hunan University, Changsha, China
| | - X Lin
- College of Life Sciences, Hunan University, Changsha, China
| | - Y Lu
- College of Life Sciences, Hunan University, Changsha, China
| | - X Guo
- College of Life Sciences, Hunan University, Changsha, China
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Ma ZK, Tong PY, Yuan C, Tang H, Zhu C, Sun XY, Zheng SG. [Pre- and post-treatment changes of gingvitis-associated peptidomic profiles in the saliva and gingival crevicular fluid by mass spectrometry]. Zhonghua Kou Qiang Yi Xue Za Zhi 2019; 54:745-752. [PMID: 31683381 DOI: 10.3760/cma.j.issn.1002-0098.2019.11.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To explore peptidomic changes of peptides in saliva and gingival crevicular fluid (GCF) before and after treatment of gingivitis. Methods: From January 2017 to September 2017, seventeen participants at the age of 24-62 (6 males and 11 females) at Department of Preventive Dentistry, Peking University School and Hospital of Stomatology with gingivitis were recruited in the present study. Their clinical parameters were measured and recorded. Saliva and GCF samples were collected from each of the participants at the baseline and 7 days after ultrasonic supragingival scaling, respectively. Matrix-assisted laser desorption-ionization time-of-flight mass spectrometry (MALDI-TOF MS) was employed to detect the changes of peptidomic profiles, while ano-liquid chromatography-electrospray ionization-tandem mass spectrometry (nano-LC/ESI-MS/MS) was performed to identify the possible proteins from which the peptides might derive. Results: Initially, four peptide peaks [mass-to-charge ratio (m/z) values: 1 030.6, 1 043.4, 1 053.4 and 1 064.6] were screened out exhibiting a decreasing trend after treatment (P<0.05). Besides, five peptide peaks from gingival crevicular fluid (P<0.05) exhibited differential expression, among which 1 055.5 and 1 168.3 demonstrating a decrease after treatment, while 3 363.7, 3 480.9 and 3 489.5 increased overtime. Certain positive correlations were detected between some peptides and clinical parameters. Principle component analysis using the above mentioned peptide peaks showed a distinct distribution before and after treatment and peptides from GCF showed a slightly better capacity to discriminate patients before and after treatment. The peptides with m/z values of 1 055.5 in GCF and 1 064.6 in saliva were identified to be segments of serum albumin and complement C3, respectively. Conclusions: Several differentially expressed peptides were detected in saliva and GCF by MALDI-TOF MS, exhibiting the potentiality to act as biomarkers in gingivitis patients.
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Affiliation(s)
- Z K Ma
- Department of Preventive Dentistry, Peking University School and Hospital of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China
| | - P Y Tong
- Department of Preventive Dentistry, Peking University School and Hospital of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China
| | - C Yuan
- Department of Preventive Dentistry, Peking University School and Hospital of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China
| | - H Tang
- Department of Preventive Dentistry, Peking University School and Hospital of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China
| | - C Zhu
- Department of Preventive Dentistry, Peking University School and Hospital of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China
| | - X Y Sun
- Department of Preventive Dentistry, Peking University School and Hospital of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China
| | - S G Zheng
- Department of Preventive Dentistry, Peking University School and Hospital of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China
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Han J, Yang M, Guo T, Niu C, Liu J, Yue Y, Yuan C, Yang B. Two linked TBXT (brachyury) gene polymorphisms are associated with the tailless phenotype in fat-rumped sheep. Anim Genet 2019; 50:772-777. [PMID: 31475743 PMCID: PMC6899607 DOI: 10.1111/age.12852] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/29/2019] [Indexed: 12/15/2022]
Abstract
T‐box transcription factor T (TBXT), encoding the brachyury protein, is an embryonic nuclear transcription factor involved in mesoderm formation and differentiation. Previous studies indicate that TBXT mutations are responsible for the tailless or short‐tailed phenotype of many vertebrates. To verify whether the tailless phenotype in fat‐rumped sheep is associated with TBXT mutations, exon 2 of the TBXT gene for 301 individuals belonging to 13 Chinese and Iranian sheep breeds was directly sequenced. Meanwhile, 380 samples were used to detect the genotypes of the candidate variations by mapping to their reads databases in the Sequence Read Archive repository of GenBank. The results showed that one missense mutation, c.334G>T (GGG>TGG) with a completely linked synonymous variant c.333G>C (CCG>CCC) was found to be associated with the ‘tailless’ characteristic in typical fat‐rumped sheep breeds. The c.334G>T transversion led to the conversion of glycine to tryptophan at the 112th amino acid in the T‐box domain of the brachyury protein. In addition, crossbreeding experiments for long‐tailed and tailless sheep showed that CT/CT allele of nucleotides (nt) 333 and 334, a recessive mutation, would cause sheep tails to be shorter, suggesting that these two linked variants at nucleotides 333 and 334 in TBXT are probably causative mutations responsible for the tailless phenotype in sheep.
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Affiliation(s)
- J Han
- Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agricultural Sciences, Lanzhou, 730050, China.,College of Animal Science and Technology, Shihezi University, Shihezi, 832000, China
| | - M Yang
- College of Animal Science and Technology, Shihezi University, Shihezi, 832000, China.,Key Laboratory of Animal (Poultry) Genetics Breeding and Reproduction, Ministry of Agriculture, Beijing, 100083, China
| | - T Guo
- Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agricultural Sciences, Lanzhou, 730050, China
| | - C Niu
- Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agricultural Sciences, Lanzhou, 730050, China
| | - J Liu
- Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agricultural Sciences, Lanzhou, 730050, China
| | - Y Yue
- Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agricultural Sciences, Lanzhou, 730050, China.,International Livestock Research Institute (ILRI), PO Box 30709, Nairobi, 00100, Kenya
| | - C Yuan
- Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agricultural Sciences, Lanzhou, 730050, China
| | - B Yang
- Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agricultural Sciences, Lanzhou, 730050, China
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Saba L, Lanzino G, Lucatelli P, Lavra F, Sanfilippo R, Montisci R, Suri JS, Yuan C. Carotid Plaque CTA Analysis in Symptomatic Subjects with Bilateral Intraparenchymal Hemorrhage: A Preliminary Analysis. AJNR Am J Neuroradiol 2019; 40:1538-1545. [PMID: 31395662 DOI: 10.3174/ajnr.a6160] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2019] [Accepted: 06/28/2019] [Indexed: 01/11/2023]
Abstract
BACKGROUND AND PURPOSE The presence of IPH is considered the most dangerous feature because it is significantly associated with clinical ipsilateral cerebrovascular events. Our aim was to explore the characterization of plaque with CT in symptomatic subjects with bilateral intraplaque hemorrhage. MATERIALS AND METHODS Three-hundred-forty-three consecutive patients with recent anterior circulation ischemic events (<2 weeks) and CT of the carotid arteries (performed within 14 days of the cerebrovascular event) evaluated between June 2012 and September 2017 were analyzed for plaque volume composition to identify all subjects with bilateral intraplaque hemorrhage. Plaque volume was semiautomatically measured, and tissue components were classified according to the attenuation values such as the following: calcified (for values of ≥130 HU), mixed (for values of ≥60 and <130 HU), lipid (for values of ≥25 and <60 HU), and intraplaque hemorrhage (for values of <25 HU). Twenty-one subjects (15 men; mean age, 70 ± 11 years; range, 44-87 years) had bilateral intraplaque hemorrhage and were included in the analysis. RESULTS Volume measurement revealed significantly larger plaques on the symptomatic side compared with the asymptomatic one (mean, 28 ± 9 versus 22 ± 8 mm, P = .007). Intraplaque hemorrhage volume and percentage were also significantly higher in the plaque ipsilateral to the cerebrovascular event (P < .001 and < .001, respectively). The volume of other plaque components did not show a statically significant association except for lipid and lipid + intraplaque hemorrhage percentages (23% versus 18% and 11% versus 15%), which were significantly different between the symptomatic and the asymptomatic sides (.016 and .011, respectively). The intraplaque hemorrhage/lipid ratio was higher on the symptomatic side (0.596 versus 0.171, P = .001). CONCLUSIONS In patients with bilateral intraplaque hemorrhage and recent ischemic symptoms, the plaque ipsilateral to the symptomatic side has significantly larger volume and a higher percentage of intraplaque hemorrhage compared with the contralateral, asymptomatic side.
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Affiliation(s)
- L Saba
- From the Department of Radiology (L.S., F.L., R.S., R.M.), Azienda Ospedaliero Universitaria di Cagliari, Monserrato (Cagliari), Italy
| | - G Lanzino
- Department of Neurologic Surgery (G.L.), Mayo Clinic, Rochester, Minnesota
| | - P Lucatelli
- Department of Radiological, Oncological and Anatomopathological Sciences-Radiology (P.L.), Sapienza University of Rome, Rome, Italy
| | - F Lavra
- From the Department of Radiology (L.S., F.L., R.S., R.M.), Azienda Ospedaliero Universitaria di Cagliari, Monserrato (Cagliari), Italy
| | - R Sanfilippo
- From the Department of Radiology (L.S., F.L., R.S., R.M.), Azienda Ospedaliero Universitaria di Cagliari, Monserrato (Cagliari), Italy
| | - R Montisci
- From the Department of Radiology (L.S., F.L., R.S., R.M.), Azienda Ospedaliero Universitaria di Cagliari, Monserrato (Cagliari), Italy
| | - J S Suri
- Diagnostic and Monitoring Division (J.S.S.), Atheropoint, Roseville, California.,Department of Electrical Engineering (J.S.S.), University of Idaho, Moscow, Idaho
| | - C Yuan
- Center for Biomedical Imaging Research (C.Y.), Department of Biomedical Engineering, Tsinghua University School of Medicine, Beijing, China.,Department of Radiology (C.Y.), University of Washington, Seattle, Washington
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Zhou Y, Su P, Yin H, Dong Z, Yang L, Yuan C. Effects of Different Harvest Times on the Maturity of Polyphenols in Two Red Wine Grape Cultivars (Vitis vinifera L.) in Qingtongxia (China). S AFR J ENOL VITIC 2019. [DOI: 10.21548/40-2-2770] [Citation(s) in RCA: 1] [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: 11/06/2022] Open
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Vogel C, Ziegelmüller B, Ljungberg B, Bensalah K, Bex A, Canfield S, Giles RH, Hora M, Kuczyk MA, Merseburger AS, Powles T, Albiges L, Stewart F, Volpe A, Graser A, Schlemmer M, Yuan C, Lam T, Staehler M. Imaging in Suspected Renal-Cell Carcinoma: Systematic Review. Clin Genitourin Cancer 2019; 17:e345-e355. [DOI: 10.1016/j.clgc.2018.07.024] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2017] [Revised: 07/08/2018] [Accepted: 07/30/2018] [Indexed: 01/14/2023]
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Wang AP, Liu L, Gu LL, Wu S, Guo CM, Feng Q, Xia WL, Yuan C, Zhu SY. Expression of duck hepatitis A virus type 1 VP3 protein mediated by avian adeno-associated virus and its immunogenicity in ducklings. Acta Virol 2019; 63:53-59. [PMID: 30879313 DOI: 10.4149/av_2019_104] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
The avian adeno-associated virus (AAAV) is a replication-defective nonpathogenic virus that has been proved to be useful as a viral vector in gene delivery. In this study, the feasibility of AAAV for transgenic expression of duck hepatitis A virus (DHAV) VP3 structural protein and its ability to induce protective immunity in ducklings was assessed. The recombinant AAAV (rAAAV-VP3) expressing the VP3 protein was prepared by co-infection of Sf9 cells with recombinant baculovirus (rBac-VP3) containing VP3 gene flanked by inverted terminal repeats (ITRs) of AAAV and the other two recombinant baculovirus expressing AAAV functional and structural genes, respectively. The generation of rAAAV-VP3 was demonstrated by electron microscopy, immunofluorescence assay, and western blot analysis. One day old ducklings were inoculated with rAAAV-VP3 or commercial attenuated vaccine and then challenged with DHAV-1 strain SH two weeks post vaccination. Anti-DHAV-1 antibodies were detected in all vaccinated groups by ELISA, and the titers between the rAAAV-VP3 group and the attenuated vaccine group were not statistically significant. Real time RT-PCR analysis showed that the virus copy numbers in the livers of the PBS control group were significantly higher than that of the rAAAV-VP3 and attenuated vaccine groups. In conclusion, we demonstrated that the VP3 expression mediated by rAAAV in ducklings could induce protective immunity against DHAV challenge, and this could be a candidate vaccine for the control of duck viral hepatitis. Keywords: avian adeno-associated virus; duck hepatitis A virus; VP3 gene; immunogenicity.
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Zhou YR, Hu XY, Yuan C, Zhao GJ, Hong GL, Li MF, Zhi SC, Lu ZQ. [Comparison of different scoring systems in prognosis evaluation of acute poisoning]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2019; 36:808-812. [PMID: 30646640 DOI: 10.3760/cma.j.issn.1001-9391.2018.11.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To compare the predictive value of PSS, APACHEII, SAPSII and SOFA in the prognosis evaluation of acute poisoning. Methods: Clinical data (including PSS score, APACHEII score, SAPSII score and SOFA score, within 24 hours after admission) of 231 acute poisoning patients admitted to the emergency intensive care unit EICU of our hospital from January 2015 to October 2016 was retrospectively analyzed. The patients were divided into the survival group and the dead group according to the 28-day clinical outcomes, comparing the differences of clinical data in each group. To analyze the correlation between PSS score, APACHEII score, SAPSII score and SOFA score in each group, comparing the value and the area under the ROC curve of four scoring systems and evaluate the predictive value of the four scoring systems. Results: Comparing with the survival group and the dead group, PSS score, APACHEII score, SAPSII score and SOFA score were significantly different (P<0.01) . PSS score, APACHEII score, SAPSII score and SOFA score were significantly positive correlation (P<0.01) , the area under the ROC curve (AUC) of the four scoring systems were 0.833, 0.887, 0.843 and 0.843 respectively. The area under the ROC curve (AUC) of APACHEII score was higher than PSS score, SAPSII score and SOFA score, the difference was statistically significant (z=2.351, 2.317, 2.217; P=0.019, 0.021, 0.027) , there was no significant difference in the area (AUC) between the three scoring curves (P>0.05) . The cutoff value (cut-off) , sensitivity, specificity and accuracy rates of PSS score, APACHEII score, SAPSII score and SOFA score were (2.5, 93.1%, 50.9%, 61.5%) , (14.5, 82.8%, 75.7%, 77.48%) , (31.5, 77.6%, 76.90%, 77.08%) , (5.5, 77.60%, 74.60%, 75.35%) . Conclusion: PSS score, APACHEII score, SAPSII score and SOFA score can evaluate the prognosis of patients with acute poisoning, but the APACHEII score is better than the other three scoring systems in evaluating the prognosis for its evaluation ability and accuracy rate.
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Affiliation(s)
- Y R Zhou
- Emergency Department of the First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, China
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Yuan C, Liu SN, Xu XJ. Crystal Structure and Luminescence of a Novel Binuclear Zinc(II) Complex with Di-2-Pyridylamine And 4,4′-Sulfonyldibenzoate. J STRUCT CHEM+ 2019. [DOI: 10.1134/s002247661808022x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Yuan C, Liu SN, Xu XJ. Synthesis, Crystal Structure and Fluorescent Property of a Onedimensional Coordination Polymer Constructed By 1,3-Bis(1,2,4-Triazol-1-Ylmethyl)- Benzene And 4,4′-Oxydiphthalic Acid. J STRUCT CHEM+ 2019. [DOI: 10.1134/s0022476618080231] [Citation(s) in RCA: 1] [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: 11/23/2022]
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Zhou Y, Su P, Yin H, Dong Z, Yang L, Yuan C. Effects of Different Harvest Times on the Maturity of Polyphenols in Two Red Wine Grape Cultivars (Vitis vinifera L.) in Qingtongxia (China). S AFR J ENOL VITIC 2018. [DOI: 10.21548/40-1-2770] [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: 11/06/2022] Open
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Zhang XY, Zhu MK, Yuan C, Zou XT. Proteomic analysis of hypothalamus and liver proteins affected by dietary l-arginine supplementation in laying hens. J Anim Physiol Anim Nutr (Berl) 2018; 102:1553-1563. [PMID: 30091229 DOI: 10.1111/jpn.12916] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [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: 01/17/2018] [Accepted: 03/31/2018] [Indexed: 12/11/2022]
Abstract
The goal of this study was to investigate the influence of l-arginine (l-Arg) supplementation on diet-induced changes in hypothalamus and liver proteome of laying hens. Layers were fed either an isonitrogenous control diet or a l-Arg diet. The test included a 2-week acclimation period and a 12-week experimental period. Eight layers per group were sacrificed at terminal of the experiment underwent 12 fasting. Blood and tissue samples of hypothalamus and liver were collected for further analysis. The levels of serum nitric oxide and hypothalamus neuropeptide Y of layers in l-Arg group were increased in comparison with those in control group. Quantitative proteomic analyses showed that a total of 3,715 hypothalamus proteins (235 differentially expressed) and 3797 liver proteins (373 differentially expressed) were detected between control and l-Arg-fed groups. A further enriched Gene Ontology term analysis of proteins found that 17 hypothalamus proteins (11 upregulated and six downregulated) and 29 liver proteins (14 upregulated and 15 downregulated) were altered differentially between the two groups. Our findings revealed the changes in metabolic and hormonal signals in central nervous system and peripheral tissues by responding to l-Arg feeding, which provides a possible way to gain a better understanding of l-Arg function in laying hens.
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Affiliation(s)
- X Y Zhang
- Key laboratory for Molecular Animal Nutrition of Ministry of Education, Feed Science Institute, College of Animal Science, Zhejiang University, Hangzhou, China
| | - M K Zhu
- Key laboratory for Molecular Animal Nutrition of Ministry of Education, Feed Science Institute, College of Animal Science, Zhejiang University, Hangzhou, China
| | - C Yuan
- Key laboratory for Molecular Animal Nutrition of Ministry of Education, Feed Science Institute, College of Animal Science, Zhejiang University, Hangzhou, China
| | - X T Zou
- Key laboratory for Molecular Animal Nutrition of Ministry of Education, Feed Science Institute, College of Animal Science, Zhejiang University, Hangzhou, China
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Miao LP, Yuan C, Dong XY, Zhang XY, Zhou MY, Zou XT. Effects of dietary L-arginine levels on small intestine protein turnover and the expression of genes related to protein synthesis and proteolysis of layers. Poult Sci 2018; 96:1800-1808. [PMID: 28340042 DOI: 10.3382/ps/pew471] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2016] [Accepted: 02/22/2017] [Indexed: 12/12/2022] Open
Abstract
The aim of this study was to test the effects of dietary L-arginine (Arg) levels on protein turnover in the small intestine and the expression of genes related to protein synthesis and proteolysis of laying hens. Xinyang Black commercial laying hens (n = 864, aged 217 d) were randomly distributed to 6 treatments with 4 replicates of 36 birds. The dietary treatments were corn-corn gluten meal based diets containing 0.64, 0.86, 1.03, 1.27, 1.42 and 1.66% L-Arg, respectively. Fractional protein synthesis rate (FSR) and fractional protein gain rate (FGR) in the jejunum were the highest in the 1.27% L-Arg group. The mRNA expression of target of rapamycin (TOR), ribosomal protein S6 kinase 1 (S6K1), and eukaryotic initiation factor 4E-binding protein 1 (4E-BP1) in the duodenum reached the highest in the 1.27% L-Arg group, while the mRNA expression of 20S proteasome (20S) was the lowest in the 1.27% L-Arg group. The mRNA abundances of TOR and S6K1 in the jejunum were the highest in the 1.27% L-Arg group, while the mRNA expression of 20S was the lowest in the 1.27% L-Arg group, and the protein expression and phosphorylation levels of TOR in the 1.27% L-Arg group were higher than those in the 0.64% L-Arg group. These results indicate that the action of an appropriate level of dietary L-Arg to improve the protein synthesis of the small intestine involves up-regulating the protein expression and phosphorylation level of TOR in the jejunum accompanied by inhibiting the mRNA expression of 20S of laying hens.
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Yuan C, Krull A, Wang C, Erdman M, Fedorka-Cray PJ, Logue CM, O'Connor AM. Changes in the prevalence of Salmonella serovars associated swine production and correlations of avian, bovine and swine-associated serovars with human-associated serovars in the United States (1997-2015). Zoonoses Public Health 2018; 65:648-661. [DOI: 10.1111/zph.12473] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2017] [Indexed: 12/01/2022]
Affiliation(s)
- C. Yuan
- Department of Statistics; College of Agriculture and Life Sciences; Iowa State University; Ames IA USA
| | - A. Krull
- Department of Veterinary Diagnostic and Production Animal Medicine; College of Veterinary Medicine; Iowa State University; Ames IA USA
| | - C. Wang
- Department of Statistics; College of Agriculture and Life Sciences; Iowa State University; Ames IA USA
- Department of Veterinary Diagnostic and Production Animal Medicine; College of Veterinary Medicine; Iowa State University; Ames IA USA
| | - M. Erdman
- Diagnostic Bacteriology Laboratory; National Veterinary Services Laboratories, USDA-APHIS; Ames IA USA
| | - P. J. Fedorka-Cray
- US Department of Agriculture; Bacterial Epidemiology and Antimicrobial Resistance Research Unit; Russell Research Center; Athens GA USA
| | - C. M. Logue
- Department of Veterinary Microbiology and Preventive Medicine; College of Veterinary Medicine; Iowa State University; Ames IA USA
| | - A. M. O'Connor
- Department of Veterinary Diagnostic and Production Animal Medicine; College of Veterinary Medicine; Iowa State University; Ames IA USA
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Yan XZ, van den Beucken JJJP, Yuan C, Jansen JA, Yang F. Spheroid formation and stemness preservation of human periodontal ligament cells on chitosan films. Oral Dis 2018. [DOI: 10.1111/odi.12855] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- X-Z Yan
- Department of Periodontology; School and Hospital of Stomatology; Shanghai Engineering Research Center of Tooth Restoration and Regeneration; Tongji University; Shanghai China
| | - JJJP van den Beucken
- Department of Biomaterials; Radboud University Medical Center; Nijmegen The Netherlands
| | - C Yuan
- College of Materials Science and Engineering; Tongji University; Shanghai China
| | - JA Jansen
- Department of Biomaterials; Radboud University Medical Center; Nijmegen The Netherlands
| | - F Yang
- Department of Biomaterials; Radboud University Medical Center; Nijmegen The Netherlands
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