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Li L, Jing S, Tang Y, Li D, Qin M. The effects of food provisioning on the gut microbiota community and antibiotic resistance genes of Yunnan snub-nosed monkey. Front Microbiol 2024; 15:1361218. [PMID: 38567076 PMCID: PMC10985317 DOI: 10.3389/fmicb.2024.1361218] [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: 12/25/2023] [Accepted: 02/26/2024] [Indexed: 04/04/2024] Open
Abstract
Yunnan snub-nosed monkeys (Rhinopithecus bieti) are the highest elevation lived non-human primate, and their survival has been threatened for decades. To promote their population growth, a reserve provides a typical monkey population with supplemental food. However, the influences of this food provisioning on their gut microbiota and antibiotic resistance genes (ARGs) were unknown. Therefore, we investigated the gut microbiota and ARGs of the food-provisioned monkey population compared with another wild foraging population. We found that food provisioning significantly increased the gut microbiota diversity and changed the community composition, particularly increased both the Firmicutes abundance and Firmicutes/Bacteroidetes ratio. Meanwhile, the food provisioning decreased the complex and stable gut microbiota network. KEGG functions were also influenced by food provisioning, with wild foraging monkeys showing higher functions of metabolism and genetic information processing, especially the carbohydrate metabolism, while food-provisioned monkeys exhibited increased environmental information processing, cellular processes, and organismal systems, including valine, leucine, and isoleucine degradation. In addition, food provisioning increased the abundance of ARGs in the gut microbiota, with most increasing the abundance of bacA gene and changing the correlations between specific ARGs and bacterial phyla in each population. Our study highlights that even food provisioning could promote wildlife nutrient intake, and it is necessary to pay attention to the increased ARGs and potential effects on gut microbiota stability and functions for this human conservation measure.
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Affiliation(s)
- Lei Li
- Key Laboratory of Southwest China Wildlife Resources Conservation (Ministry of Education), China West Normal University, Nanchong, China
| | - Shan Jing
- School of Electrical Information Engineering, Chengdu Textile College, Chengdu, China
| | - Yun Tang
- Key Laboratory of Southwest China Wildlife Resources Conservation (Ministry of Education), China West Normal University, Nanchong, China
| | - Dayong Li
- Key Laboratory of Southwest China Wildlife Resources Conservation (Ministry of Education), China West Normal University, Nanchong, China
| | - Mingsen Qin
- Key Laboratory of Southwest China Wildlife Resources Conservation (Ministry of Education), China West Normal University, Nanchong, China
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Jing S, Lin Y, Dockens R, Marchisin D, He B, Girgis IG, Chimalakonda A, Murthy B, Aras U. Pharmacokinetics and Safety of the Tyrosine Kinase 2 Inhibitor Deucravacitinib in Healthy Chinese Subjects. Dermatol Ther (Heidelb) 2023; 13:3153-3164. [PMID: 37981596 PMCID: PMC10689320 DOI: 10.1007/s13555-023-01050-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2023] [Accepted: 09/25/2023] [Indexed: 11/21/2023] Open
Abstract
INTRODUCTION Deucravacitinib, an oral, selective, allosteric tyrosine kinase 2 inhibitor, blocks cytokine signaling involved in psoriasis pathogenesis. This ethnic-bridging study evaluated deucravacitinib pharmacokinetics, tolerability, and safety in healthy Chinese subjects. METHODS This phase I, double-blind, single-/multiple-dose study randomized healthy Chinese subjects 4:1 to a single dose of deucravacitinib 6 mg or placebo (group 1) or deucravacitinib 12 mg or placebo (group 2) on day 1; groups 1 and 2 received deucravacitinib 6 mg and 12 mg once daily, respectively, or placebo on days 5-19. Blood samples were collected on days 1-5 (0 predose-96 h postdose), day 5 (0-24 h postdose), days 9 and 12 (0 h), and day 19 (0-24 h postdose). Deucravacitinib and metabolite (BMT-153261, BMT-158170) concentrations were determined using liquid chromatography/mass spectrometry; pharmacokinetic parameters were calculated using noncompartmental analysis. Urine was collected on days 1-4 (4 h predose-96 h postdose). Safety was monitored throughout. RESULTS Forty healthy Chinese subjects (groups 1 and 2: deucravacitinib, n = 32; placebo, n = 8) were enrolled. Deucravacitinib was rapidly absorbed after single-/multiple-dose administration, with median time to maximal plasma concentration of 1.5-2.3 h. Systemic exposure after single or multiple doses increased approximately twofold with twofold dose increase. Modest deucravacitinib accumulation was observed after multiple-dose administration (1.3- to 1.4-fold increase in area under the curve [AUC] under one dosing interval). Metabolite-to-parent ratios for maximal plasma concentration and AUC remained consistent in each dose group. Mean urinary percent recovery and renal clearance were similar between dose groups. Most adverse events (AEs) were mild/moderate, with no serious treatment-related AEs, deaths, or discontinuations due to AEs. CONCLUSION Deucravacitinib was safe and well tolerated in healthy Chinese subjects. Deucravacitinib exhibited rapid absorption, dose-related increases in exposure, comparable half-life, and no evidence of time-dependent pharmacokinetics, suggesting minimal effect of Chinese ethnicity on deucravacitinib pharmacokinetics. CLINICAL TRIAL REGISTRATION NCT03956953.
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Affiliation(s)
- Shan Jing
- Clinical Pharmacology Centre, Beijing Anzhen Hospital, Capital Medical University, Beijing, China
| | - Yang Lin
- Clinical Pharmacology Centre, Beijing Anzhen Hospital, Capital Medical University, Beijing, China
| | - Randy Dockens
- Bristol Myers Squibb, 3551 Lawrenceville Road, Princeton, NJ, 08540, USA
| | - David Marchisin
- Bristol Myers Squibb, 3551 Lawrenceville Road, Princeton, NJ, 08540, USA
| | - Bing He
- Bristol Myers Squibb, 3551 Lawrenceville Road, Princeton, NJ, 08540, USA
| | - Ihab G Girgis
- Bristol Myers Squibb, 3551 Lawrenceville Road, Princeton, NJ, 08540, USA
| | | | - Bindu Murthy
- Bristol Myers Squibb, 3551 Lawrenceville Road, Princeton, NJ, 08540, USA
| | - Urvi Aras
- Bristol Myers Squibb, 3551 Lawrenceville Road, Princeton, NJ, 08540, USA.
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Jing S, Dai Z, Wu Y, Liu X, Ren T, Liu X, Zhang L, Fu J, Chen X, Xiao W, Wang H, Huang Y, Qu Y, Wang W, Gu X, Ma L, Zhang S, Yu Y, Li L, Han Z, Su X, Qiao Y, Wang C. Prevalence and influencing factors of depressive and anxiety symptoms among hospital-based healthcare workers during the surge period of the COVID-19 pandemic in the Chinese mainland: a multicenter cross-sectional study. QJM 2023; 116:911-922. [PMID: 37561096 DOI: 10.1093/qjmed/hcad188] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Revised: 07/06/2023] [Indexed: 08/11/2023] Open
Abstract
BACKGROUND From November 2022 to February 2023, the Chinese mainland experienced a surge in COVID-19 infection and hospitalization, and the hospital-based healthcare workers (HCWs) might suffer serious psychological crisis during this period. This study aims to assess the depressive and anxiety symptoms among HCWs during the surge of COVID-19 pandemic and to provide possible reference on protecting mental health of HCWs in future infectious disease outbreaks. METHODS A multicenter cross-sectional study was carried out among hospital-based HCWs in the Chinese mainland from 5 January to 9 February 2023. The PHQ-9 (nine-item Patient Health Questionnaire) and GAD-7 (seven-item Generalized Anxiety Disorder Questionnaire) were used to measure depressive and anxiety symptoms. Ordinal logistic regression analysis was performed to identify influencing factors. RESULTS A total of 6522 hospital-based HCWs in the Chinse mainland were included in this survey. The prevalence of depressive symptoms among the HCWs was 70.75%, and anxiety symptoms was 47.87%. The HCWs who perceived higher risk of COVID-19 infection and those who had higher work intensity were more likely to experience depressive and anxiety symptoms. Additionally, higher levels of mindfulness, resilience and perceived social support were negatively associated with depressive and anxiety symptoms. CONCLUSION This study revealed that a high proportion of HCWs in the Chinese mainland suffered from mental health disturbances during the surge of the COVID-19 pandemic. Resilience, mindfulness and perceived social support are important protective factors of HCWs' mental health. Tailored interventions, such as mindfulness practice, should be implemented to alleviate psychological symptoms of HCWs during the COVID-19 pandemic or other similar events in the future.
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Affiliation(s)
- S Jing
- School of Population Medicine and Public Health, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Z Dai
- School of Population Medicine and Public Health, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Y Wu
- School of Population Medicine and Public Health, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - X Liu
- School of Population Medicine and Public Health, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - T Ren
- School of Population Medicine and Public Health, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - X Liu
- School of Population Medicine and Public Health, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - L Zhang
- School of Population Medicine and Public Health, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - J Fu
- School of Population Medicine and Public Health, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - X Chen
- School of Population Medicine and Public Health, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - W Xiao
- School of Population Medicine and Public Health, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - H Wang
- School of Population Medicine and Public Health, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Y Huang
- School of Population Medicine and Public Health, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Y Qu
- School of Population Medicine and Public Health, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - W Wang
- School of Nursing, Jining Medical University, Jining, Shandong, China
| | - X Gu
- Affiliated Tumor Hospital, Xinjiang Medical University, Urumqi, China
| | - L Ma
- Public Health School, Dalian Medical University, Dalian, China
| | - S Zhang
- Henan Cancer Hospital, Affiliate Cancer Hospital of Zhengzhou University, Zhengzhou, China
| | - Y Yu
- The First Affiliated Hospital of Baotou Medical College, Baotou, Inner Mongolia Autonomous Region, China
| | - L Li
- Department of Clinical Research, The First Affiliated Hospital of Jinan University, Guangdong, China
| | - Z Han
- China Foreign Affairs University, Beijing, China
| | - X Su
- School of Population Medicine and Public Health, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Y Qiao
- School of Population Medicine and Public Health, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
- Department of Epidemiology, National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - C Wang
- School of Population Medicine and Public Health, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
- Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
- National Clinical Research Center for Respiratory Diseases, Beijing, China
- Chinese Academy of Engineering, Beijing, China
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Wang S, Cheng Z, Cui Y, Xu S, Luan Q, Jing S, Du B, Li X, Li Y. PTPRH promotes the progression of non-small cell lung cancer via glycolysis mediated by the PI3K/AKT/mTOR signaling pathway. J Transl Med 2023; 21:819. [PMID: 37974250 PMCID: PMC10652596 DOI: 10.1186/s12967-023-04703-5] [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] [Received: 08/22/2023] [Accepted: 11/03/2023] [Indexed: 11/19/2023] Open
Abstract
BACKGROUND The protein tyrosine phosphatase H receptor (PTPRH) is known to regulate the occurrence and development of pancreatic and colorectal cancer. However, its association with glycolysis in non-small cell lung cancer (NSCLC) is still unclear. In this study, we aimed to investigate the relationship between PTPRH expression and glucose metabolism and the underlying mechanism of action. METHODS The expression of PTPRH in NSCLC cells was evaluated by IHC staining, qRT‒PCR and Western blotting. The effect of PTPRH on cell biological behavior was evaluated by colony assays, EdU experiments, Transwell assays, wound healing assays and flow cytometry. Changes in F-18-fluorodeoxyglucose (18F-FDG) uptake and glucose metabolite levels after altering PTPRH expression were detected via a gamma counter and lactic acid tests. The expression of glycolysis-related proteins in NSCLC cells was detected by Western blotting after altering PTPRH expression. RESULTS The results showed that PTPRH was highly expressed in clinical patient tissue samples and closely related to tumor diameter and clinical stage. In addition, PTPRH expression was associated with glycometabolism indexes on 18F-FDG positron emission tomography/computed tomography (PET/CT) imaging, the expression level of Ki67 and the expression levels of glycolysis-related proteins. PTPRH altered cell behavior, inhibited apoptosis, and promoted 18F-FDG uptake, lactate production, and the expression of glycolysis-related proteins. In addition, PTPRH modulated the glycometabolism of NSCLC cells via the phosphatidylinositol-3-kinase (PI3K)/protein kinase B (AKT)/mammalian target of rapamycin (mTOR) signaling pathway, as assessed using LY294002 and 740Y-P (an inhibitor and agonist of PI3K, respectively). The same results were validated in vivo using a xenograft tumor model in nude mice. Protein expression levels of PTPRH, glycolysis-related proteins, p-PI3K/PI3K and p-AKT/AKT were measured by IHC staining using a subcutaneous xenograft model in nude mice. CONCLUSIONS In summary, we report that PTPRH promotes glycolysis, proliferation, migration, and invasion via the PI3K/AKT/mTOR signaling pathway in NSCLC and ultimately promotes tumor progression, which can be regulated by LY294002 and 740Y-P. These results suggest that PTPRH is a potential therapeutic target for NSCLC.
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Affiliation(s)
- Shu Wang
- Department of Nuclear Medicine, The First Hospital of China Medical University, No. 155, Nanjing Northern Street, Shenyang, 110001, Liaoning, People's Republic of China
| | - Zhiming Cheng
- Department of Nuclear Medicine, The First Hospital of China Medical University, No. 155, Nanjing Northern Street, Shenyang, 110001, Liaoning, People's Republic of China
| | - Yan Cui
- Department of Nuclear Medicine, The First Hospital of China Medical University, No. 155, Nanjing Northern Street, Shenyang, 110001, Liaoning, People's Republic of China
| | - Shuoyan Xu
- Department of Nuclear Medicine, The First Hospital of China Medical University, No. 155, Nanjing Northern Street, Shenyang, 110001, Liaoning, People's Republic of China
| | - Qiu Luan
- Department of Nuclear Medicine, The First Hospital of China Medical University, No. 155, Nanjing Northern Street, Shenyang, 110001, Liaoning, People's Republic of China
| | - Shan Jing
- Department of Nuclear Medicine, The First Hospital of China Medical University, No. 155, Nanjing Northern Street, Shenyang, 110001, Liaoning, People's Republic of China
| | - Bulin Du
- Department of Nuclear Medicine, The First Hospital of China Medical University, No. 155, Nanjing Northern Street, Shenyang, 110001, Liaoning, People's Republic of China
| | - Xuena Li
- Department of Nuclear Medicine, The First Hospital of China Medical University, No. 155, Nanjing Northern Street, Shenyang, 110001, Liaoning, People's Republic of China
| | - Yaming Li
- Department of Nuclear Medicine, The First Hospital of China Medical University, No. 155, Nanjing Northern Street, Shenyang, 110001, Liaoning, People's Republic of China.
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Liu X, Zhang L, Jing S, Wu YJ, Su XY, Qiao YL. [Human papillomavirus vaccination for men who have sex with men in China: demand and suggestions]. Zhonghua Liu Xing Bing Xue Za Zhi 2023; 44:1321-1326. [PMID: 37661628 DOI: 10.3760/cma.j.cn112338-20221129-01010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 09/05/2023]
Abstract
MSM are a high-risk population for HPV infection and related diseases. MSM can be effectively protected by quadrivalent and nine-valent HPV vaccines. This paper outlines the significance of providing HPV vaccination to MSM, summarizes the basis of HPV vaccination in MSM, and puts forward the following recommendations. First, China should expedite the development and approval of the HPV vaccine for male use. Second, HIV-positive MSM should vaccinate against HPV as soon as possible. Third, prioritize HPV vaccination for MSM individuals aged 26 or less. Fourth, for MSM aged over 26, catch-up vaccination or opportunistic vaccination should be provided when HPV vaccine resources are sufficient. Implementing this vaccination strategy can provide protection for the MSM and control the spread of sexually transmitted diseases.
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Affiliation(s)
- X Liu
- School of Population Medicine and Public Health, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100730, China
| | - L Zhang
- School of Population Medicine and Public Health, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100730, China
| | - S Jing
- School of Population Medicine and Public Health, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100730, China
| | - Y J Wu
- School of Population Medicine and Public Health, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100730, China
| | - X Y Su
- School of Population Medicine and Public Health, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100730, China
| | - Y L Qiao
- School of Population Medicine and Public Health, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100730, China
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Chaoyu L, Guoqiang J, Wenqiang X, Lian M, Jing S, Yong L. Precision shaping of elastic stable intramedullary nail for the treatment of metaphyseal diaphysis junction fracture of the distal radius in children: a preliminary report in two centers. BMC Musculoskelet Disord 2023; 24:237. [PMID: 36991384 DOI: 10.1186/s12891-023-06332-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/17/2023] [Accepted: 03/17/2023] [Indexed: 03/31/2023] Open
Abstract
BACKGROUND This study introduces a novel retrograde precision shaping elastic stable intramedullary nailing (ESIN-RPS) technique and reports clinical outcomes in pediatric distal radius metaphyseal diaphysis junction (DRMDJ) fracture. METHODS Data about DRMDJs were collected from February 1, 2020, to April 31, 2022 at two hospitals, retrospectively. All patients were treated with closed reduction and ESIN-RPS fixation. The operation time, blood loss, fluoroscopy times, alignment, and residual angulation on X-ray were recorded. At the last follow-up, the function of wrist and forearm rotation were evaluated. RESULTS Totally, 23 patients were recruited. The mean time of follow-up was 11 months and the minimum was 6 months. The mean operation time was 52 min, and the mean fluoroscopies pulses were 6 times. The postoperative anterioposterior (AP) alignment was 93 ± 4% and the lateral alignment was 95 ± 3%. The postoperative AP angulation was (4 ± 1)°, and the lateral angulation was (3 ± 1)°. At the last follow-up, the evaluation of the Gartland and Werley demerit criteria of wrist revealed 22 excellent cases and 1 good case. The forearm rotation and thumb dorsiflexion functions were not limited. CONCLUSION The ESIN-RPS is a novel, safe, and effective method for the treatment of pediatric DRMDJ fracture.
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Affiliation(s)
- Liu Chaoyu
- The People's Hospital of Fuyang City, Fuyang, 236011, China
| | - Jia Guoqiang
- Department of Orthopedics, Children's Hospital of Fudan University Anhui Hospital, Hefei, 230051, China.
| | - Xu Wenqiang
- The People's Hospital of Fuyang City, Fuyang, 236011, China
| | - Meng Lian
- Department of Orthopedics, Children's Hospital of Fudan University Anhui Hospital, Hefei, 230051, China
| | - Shan Jing
- Department of Orthopedics, Children's Hospital of Fudan University Anhui Hospital, Hefei, 230051, China
| | - Liu Yong
- Department of Orthopedics, Children's Hospital of Fudan University Anhui Hospital, Hefei, 230051, China
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Jing S, Liu W, Yang K, Lin Y, Yao X, Sun G. The randomized, single- and multiple- ascending dose studies of the safety, tolerability, pharmacokinetics of CSPCHA115 in healthy Chinese subjects. Clin Transl Sci 2023; 16:447-458. [PMID: 36495036 PMCID: PMC10014699 DOI: 10.1111/cts.13455] [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: 08/18/2022] [Revised: 10/16/2022] [Accepted: 10/28/2022] [Indexed: 12/14/2022] Open
Abstract
CSPCHA115 is a highly selective and potent antagonist of chemoattractant receptor-homologous molecule expressed on TH2 cells (CRTH2). This study aimed to evaluate the pharmacokinetics (PKs), safety, and tolerability of single and multiple ascending doses of CSPCHA115 in Chinese healthy subjects. Two phase I studies both adopted a randomized, double-blind, placebo-controlled, single-center, and ascending-dose design. In the single ascending dose (SAD) study, subjects were randomly allocated to receive a single dose of CSPCHA115 (25-1000 mg) or a placebo. In the multiple ascending dose (MAD) study, 100, 200, 400, or 600 mg of CSPCHA115 or placebo were given to subjects once daily for 7 days. PK parameters were estimated by noncompartmental analysis. Safety was assessed by monitoring treatment-emergent adverse events (TEAEs), clinical laboratory tests, electrocardiograms, vital signs, and physical examinations throughout the study period. Forty-eight healthy subjects were enrolled in the SAD study, and 40 healthy subjects were in the MAD study. Following single and multiple administrations, CSPCHA115 was rapidly absorbed with a median time to maximum concentration of ~0.5-3.5 h; and the systemic exposure of CSPCHA115 generally increased dose-proportionally within the dose range studied. Steady-state was approximately achieved by day 5, and <1.5-fold accumulation was observed following multiple doses. Mean terminal half-life was ~8.16-16.43 h after a single dose. CSPCHA115 was well-tolerated in both studies, with a low overall incidence of TEAEs. The most common TEAE related to CSPCHA115 was hypertriglyceridemia. No significant safety concerns were identified in healthy subjects.
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Affiliation(s)
- Shan Jing
- Clinical Pharmacology Centre, Beijing Anzhen Hospital, Capital Medical University, Beijing, China
| | - Wenfang Liu
- Clinical Pharmacology Centre, Beijing Anzhen Hospital, Capital Medical University, Beijing, China
| | - Kexu Yang
- Clinical Pharmacology Centre, Beijing Anzhen Hospital, Capital Medical University, Beijing, China
| | - Yang Lin
- Clinical Pharmacology Centre, Beijing Anzhen Hospital, Capital Medical University, Beijing, China
| | - Xuekun Yao
- Clinical Science Division, CSPC Pharmaceutical Group Co., Ltd., Shijiazhuang, China
| | - Guilan Sun
- Clinical Science Division, CSPC Pharmaceutical Group Co., Ltd., Shijiazhuang, China
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Lan W, Cai P, Jing S, Li S. Study on the dynamic interfacial tension with micro interface sensor. Chem Eng Sci 2022. [DOI: 10.1016/j.ces.2022.118439] [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: 01/01/2023]
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Jing S, Li Y, Zhu L, Su J, Yang T, Liu B, Ma B, Ma F, Li M, Zhang M. Transcriptomics and metabolomics reveal effect of arbuscular mycorrhizal fungi on growth and development of apple plants. Front Plant Sci 2022; 13:1052464. [PMID: 36388499 PMCID: PMC9641280 DOI: 10.3389/fpls.2022.1052464] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/24/2022] [Accepted: 10/10/2022] [Indexed: 06/16/2023]
Abstract
Arbuscular mycorrhizal fungi (AMF) and plants form a symbiotic relationship that promotes plant growth and development. However, the regulatory mechanisms through which AMF promote plant growth and development are largely unexplored. In this study, the apple rootstock M26 was assessed physiologically, transcriptionally and metabolically when grown with and without AMF inoculation. AMF significantly promoted the number of lateral root (LR) increase and shoot elongation. Root transcriptomic and metabolic data showed that AMF promoted lateral root development mainly by affecting glucose metabolism, fatty acid metabolism, and hormone metabolism. Shoot transcriptomic and metabolic data showed that AMF promoted shoot elongation mainly by affecting hormone metabolism and the expression of genes associated with cell morphogenesis. To investigate whether shoot elongation is caused by root development, we analyzed the root/shoot dry weight ratio. There was a correlation between shoot growth and root development, but analysis of root and shoot metabolites showed that the regulation of AMF on plant shoot metabolites is independent of root growth. Our study bridged the gap in the field of growth and development related to AMF.
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Affiliation(s)
| | | | | | | | | | | | | | | | - Mingjun Li
- *Correspondence: Mingjun Li, ; Manrang Zhang,
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Wang S, Jing S, Du B, Li Y, Li X. HER2-Negative Schnitzler Metastasis to the Rectum Detected Using 18 F-FDG PET/CT. Clin Nucl Med 2022; 47:826-827. [PMID: 35384884 DOI: 10.1097/rlu.0000000000004208] [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] [Indexed: 12/24/2022]
Abstract
ABSTRACT Gastric carcinoma metastasis occurs via hematogenous, lymphatic, or peritoneal seeding. We describe FDG PET/CT findings of Schnitzler metastasis to the rectum in a 39-year-old woman who had radical gastrectomy for signet ring gastric adenocarcinoma 2 years prior. FDG PET/CT demonstrated increased homogeneous round activity in the inner layer of rectal wall. Occult metastases of gastric carcinoma tend to be difficult to treat and have a poor prognosis. However, in some cases, FDG PET/CT might be beneficial for early detection and diagnosis of Schnitzler metastasis.
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Affiliation(s)
- Shu Wang
- From the Department of Nuclear Medicine, The First Hospital of China Medical University, Shenyang, China
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Jia H, Aldeen MS, Zhao C, Jing S, Chen Z. Flexible privacy‐preserving machine learning: When searchable encryption meets homomorphic encryption. INT J INTELL SYST 2022. [DOI: 10.1002/int.22985] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Haixin Jia
- School of Information Science and Engineering University of Jinan Jinan China
| | - Mohammed S. Aldeen
- School of Information Science and Engineering University of Jinan Jinan China
| | - Chuan Zhao
- School of Information Science and Engineering University of Jinan Jinan China
- Quan Cheng Laboratory Jinan China
- Shandong Provincial Key Laboratory of Network‐based Intelligent Computing Jinan China
| | - Shan Jing
- School of Information Science and Engineering University of Jinan Jinan China
| | - Zhenxiang Chen
- School of Information Science and Engineering University of Jinan Jinan China
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Ni L, Jing S, Zhu L, Yang X, Wang X, Tu S. The Immune Change of the Lung and Bowel in an Ulcerative Colitis Rat Model and the Protective Effect of Sodium Houttuyfonate Combined With Matrine. Front Immunol 2022; 13:888918. [PMID: 35844499 PMCID: PMC9280623 DOI: 10.3389/fimmu.2022.888918] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2022] [Accepted: 05/30/2022] [Indexed: 01/19/2023] Open
Abstract
Objective To explore the immune change of lung injury of Ulcerative colitis (UC) by observing the changes of inherent immunity and adaptive immunity of the lung and bowel in UC rat models after the treatment of Sodium Houttuyfonate combined with Matrine. Method UC rat models were established with the mucous membrane of colon allergize combined with TNBS-alcohol enteroclysis for 1 week and 5 weeks. 1-week experimental rats were divided into normal group and model group, 5/each group. 5-weeks experimental rats were divided into normal group, model group, Sodium Houttuyfonate (2.9mg/ml) combined with Matrine (1.47mg/ml), and positive control sulfasalazine (10mg/ml), 5/each group. All rats were administered by gavage for 5 weeks. The histopathological and fibrotic changes in the lung and bowel were observed, and the expressions of Tumor Necrosis Factor (TNF)- α, interleukin (IL)-8 in the lung, bowel, and serum were detected by radio-immunity and immunohistochemistry, and the mRNA expressions of Toll-like receptor (TLR)-4, nuclear factor kappa (NF-κB), Macrophage migration inhibitory factor (MIF), Mucosal addressing cell adhesion molecule-1 (MadCAM1) and Pulmonary surfactant protein-A (SP-A) in the lung and bowel were detected by Real time-PCR. Result Compared with the normal group, the model rats had significant histopathological and fibrotic changes both in the lung and bowel, and all treatment groups were improved. After treatment, TLR4, IL-8, MIF, and TNF-α in the lung decreased (P<0.05); NF-KB, IL-8, and MIF in the bowel increased (P<0.05); MadCAM1 both in lung and bowel decreased (P<0.05); SP-A decreased in bowel and increased in the lung (P<0.05). Conclusion The cause of lung injury in this model was found to be related to inherent immunity and adaptive immunity, while the cause of bowel injury in this model was found to be mainly related to adaptive immunity. Sodium Houttuyfonate combined with Matrine could improve bowel and lung injury.
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Affiliation(s)
- Lulu Ni
- Department of Basic Medicine, Wuxi School of Medicine, Jiangnan University, Wuxi, China
| | - Shan Jing
- Department of Internal Medicine of Traditional Chinese Medicine (TCM), Nantong Hospital, Nantong, China
| | - Li Zhu
- Department of Internal Medicine of Traditional Chinese Medicine (TCM), Dong- zhimen Hospital, Beijing University of Chinese Medicine, Beijing, China
| | - Xue Yang
- Department of Internal Medicine of Traditional Chinese Medicine (TCM), Third Affiliated Hospital of Henan University of Traditional Chinese Medicine, Zhengzhou, China
| | - Xinyue Wang
- Department of Internal Medicine of Traditional Chinese Medicine (TCM), Dong- zhimen Hospital, Beijing University of Chinese Medicine, Beijing, China
| | - Su Tu
- Department of Emergency, the Affiliated Wuxi NO 2 People’s Hospital of Nanjing Medical University, Wuxi, China
- *Correspondence: Su Tu,
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Lan W, Cai D, Hu X, Jing S, Li S. Determination of dynamic interactions of droplets in continuous fluids using droplet probe. J Colloid Interface Sci 2021; 605:91-100. [PMID: 34311316 DOI: 10.1016/j.jcis.2021.07.073] [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: 04/12/2021] [Revised: 07/09/2021] [Accepted: 07/10/2021] [Indexed: 10/20/2022]
Abstract
HYPOTHESIS Interactions between droplets are of fundamental importance for understanding phenomena involving droplet collision and coalescence that determine multiphase flow behavior. The quantitative understanding of these interactions is essential for the manipulation and control of emulsions or complex fluids. The existing methods for interaction force determination are typically based on expensive mechanical probes and fine distance control. Therefore, further development of new techniques for interaction force determination is expected to be beneficial for research on surface force. EXPERIMENTS In this study, droplet deformation during the interaction between two droplets was captured and analyzed to determine the interaction force. The approach speed of the two droplets was controlled by the injection rate of the fluid. The dynamic interaction force between two tetradecane droplets in various aqueous solutions was determined using the newly developed method, and the effects of two-phase physical properties and operating conditions on the measurement errors were investigated. FINDINGS The droplet profile deformation was first applied as a probe to detect the interaction force. The measurement results were in good agreement with those obtained using the precise weighing sensor of a commercial interfacial tensiometer (K100, Kruss, Germany). The newly developed method was reliable, simple, and did not require the use of expensive devices. Furthermore, droplet deformability was found to be the key parameter in determining the total interaction force between the droplets.
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Affiliation(s)
- Wenjie Lan
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing 102249, China.
| | - Dizong Cai
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing 102249, China
| | - Xiaojie Hu
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing 102249, China
| | - Shan Jing
- Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing 100084, China
| | - Shaowei Li
- Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing 100084, China.
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Zhou H, Yu X, Wang B, Jing S, Lan W, Li S. Modeling study on drop breakup time in turbulent dispersions. Chem Eng Sci 2021. [DOI: 10.1016/j.ces.2021.116599] [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: 10/21/2022]
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Jing S, Xu R, Yang K, Liu W, Zhang L, Ke Y, Xia G, Lin Y. Safety, Tolerability, Pharmacokinetics, and Pharmacodynamics of SPH3127: A Phase I, Randomized, Double-Blind, Placebo-Controlled Trial. Clin Ther 2021; 43:735.e1-735.e14. [PMID: 33653620 DOI: 10.1016/j.clinthera.2021.01.025] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2020] [Revised: 01/25/2021] [Accepted: 01/26/2021] [Indexed: 01/10/2023]
Abstract
PURPOSE To evaluate the pharmacokinetics, pharmacodynamics, safety, and tolerability of single- and multiple-dose SPH3127 in healthy individuals. METHODS This was a randomized, double-blind, placebo-controlled, Phase I dose-escalation study. FINDINGS SPH3127 exposure, expressed as Cmax, AUC0-t, and AUC0-∞, was proportionally increased with dose for a range of 25-800 mg (single ascending dose [SAD]) and 100-400 mg daily (multiple ascending doses [MADs]). In an SAD, the Cmax values with 25, 50, 100, 200, 400, and 800 mg of SPH3127 were 90.67, 344.50, 523.50, 1239.50, 2445.00, and 5753.33 ng/mL, respectively. The corresponding AUC0-t values were 294.48, 843.62, 1109.33, 2858.56, 6697.50, and 13057.83 h × ng/mL. In MADs, after the first dose of SPH3127, the Cmax values with 100, 200, and 400 mg of SPH3127 were 421.50, 969.00, and 2468.33 ng/mL, respectively. The corresponding AUC0-t values were 1279.28, 2275.77, and 5934.26 h × ng/mL. At steady state, the Cmax values with 100, 200, and 400 mg of SPH3127 were 514.67, 1419.17, and 2513.33 ng/mL, respectively. The corresponding AUC0-24 values were 1638.14, 3096.20, and 7577.70 h × ng/mL. The median Tmax range from 0.33 to 1.0 h and the median t1/2 from 3 to 4 h. In an SAD, when the dose was >100 mg, plasma renin activity inhibition of up to 90% lasted up to 24 h. In MADs, renin activity was continuously inhibited by up to 90% in each group for 24 h after the last administration. Treatment-emergent adverse events (AEs) were reported in 29.2% of individuals receiving the SAD and 33.3% of those receiving MADs. Only mild adverse events occurred. IMPLICATIONS SPH3127 was well tolerated and had robust and sustained suppression of plasma renin activity. CLINICALTRIALS. GOV IDENTIFIERS NCT03128138 (SAD study) and NCT03255993 (MAD study).
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Affiliation(s)
- Shan Jing
- Clinical Pharmacology Centre, Beijing Anzhen Hospital, Capital Medical University, Beijing, China
| | - Ranchi Xu
- Central Research Institute, Shanghai Pharmaceuticals Holding Co., Ltd, Shanghai, China
| | - Kexu Yang
- Clinical Pharmacology Centre, Beijing Anzhen Hospital, Capital Medical University, Beijing, China
| | - Wenfang Liu
- Clinical Pharmacology Centre, Beijing Anzhen Hospital, Capital Medical University, Beijing, China
| | - Leduo Zhang
- Central Research Institute, Shanghai Pharmaceuticals Holding Co., Ltd, Shanghai, China
| | - Ying Ke
- Central Research Institute, Shanghai Pharmaceuticals Holding Co., Ltd, Shanghai, China
| | - Guangxin Xia
- Central Research Institute, Shanghai Pharmaceuticals Holding Co., Ltd, Shanghai, China.
| | - Yang Lin
- Clinical Pharmacology Centre, Beijing Anzhen Hospital, Capital Medical University, Beijing, China.
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Affiliation(s)
- Han Zhou
- Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing 100084, China
| | - Xiong Yu
- Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing 100084, China
| | - Bo Wang
- Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing 100084, China
| | - Shan Jing
- Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing 100084, China
| | - Wenjie Lan
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum (Beijing), Beijing 102249, China
| | - Shaowei Li
- Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing 100084, China
- State Key Laboratory of Chemical Engineering, Tsinghua University, Beijing 100084, China
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Yu X, Zhou H, Jing S, Lan W, Li S. Experimental and numerical study of liquid–liquid interphase mass transfer in a pilot-scale extraction column. Chem Eng Sci 2021. [DOI: 10.1016/j.ces.2020.116184] [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: 10/23/2022]
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Yu X, Zhou H, Jing S, Lan W, Li S. Combining level-set method and population balance model to simulate liquid–liquid two-phase flows in pulsed columns. Chem Eng Sci 2020. [DOI: 10.1016/j.ces.2020.115851] [Citation(s) in RCA: 3] [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: 12/22/2022]
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Affiliation(s)
- Han Zhou
- Institute of Nuclear and New Energy Technology, Tsinghua University Beijing China
| | - Xiong Yu
- Institute of Nuclear and New Energy Technology, Tsinghua University Beijing China
| | - Bo Wang
- Institute of Nuclear and New Energy Technology, Tsinghua University Beijing China
| | - Shan Jing
- Institute of Nuclear and New Energy Technology, Tsinghua University Beijing China
| | - Wenjie Lan
- State Key Laboratory of Heavy Oil Processing China University of Petroleum (Beijing) Beijing China
| | - Shaowei Li
- Institute of Nuclear and New Energy Technology, Tsinghua University Beijing China
- State Key Laboratory of Chemical Engineering Tsinghua University Beijing China
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Zhao Q, Wang J, Guo H, Li Y, Lin C, Cheng Y, Zhang Z, Wang D, Zhao X, Liu Y, Jing S, Yang P, Tian Y, Liu Y. 1427P A phase II study of neoadjuvant concurrent chemoradiotherapy with apatinib for HER-2 negative Siewert type II and III adenocarcinoma of esophagogastric junction. Ann Oncol 2020. [DOI: 10.1016/j.annonc.2020.08.1933] [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: 11/17/2022] Open
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Zhao C, Zhao S, Zhang B, Jing S, Chen Z, Zhao M. Oblivious DFA evaluation on joint input and its applications. Inf Sci (N Y) 2020. [DOI: 10.1016/j.ins.2020.03.065] [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: 10/24/2022]
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Affiliation(s)
- Wenjie Lan
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing 102249, China
| | - Dan Liu
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing 102249, China
| | - Xuqiang Guo
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing 102249, China
| | - Aixian Liu
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing 102249, China
| | - Qiang Sun
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing 102249, China
| | - Xingxun Li
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing 102249, China
| | - Shan Jing
- Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing 100084, China
| | - Shaowei Li
- Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing 100084, China
- State Key Laboratory of Chemical Engineering, Tsinghua University, Beijing 100084, China
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Jing S, Zhang Z, Chen X, Miao R, Nilsson C, Lin Y. Pharmacokinetics of Single and Multiple Doses of Omega-3 Carboxylic Acids in Healthy Chinese Subjects: A Phase I, Open-Label Study. Clin Pharmacol Drug Dev 2020; 9:985-994. [PMID: 32567203 DOI: 10.1002/cpdd.800] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2019] [Accepted: 03/07/2020] [Indexed: 01/10/2023]
Abstract
In patients with coronary heart disease undergoing primary prevention, hypertriglyceridemia is a residual risk for cardiovascular events. Omega-3 carboxylic acid (OM3-CA), a mixture of the free fatty acid forms of eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA), may be beneficial in reducing triglyceride levels. As part of the clinical development program of OM3-CA in China, this phase I study evaluated the pharmacokinetics, safety, and tolerability profile of OM3-CA in healthy subjects. The pharmacokinetic results of this study were also compared with those of available data for Western populations. Fourteen healthy Chinese subjects (aged 18-45 years) received once-daily oral OM3-CA 4 g for 14 consecutive days. Pharmacokinetic parameters were assessed from both baseline-uncorrected and baseline-corrected plasma concentrations vs time profile of EPA, DHA, and EPA plus DHA. Following single and multiple oral doses of OM3-CA, the absorption of EPA, DHA, and EPA plus DHA was steady with median tmax occurring at 5.5-6 hours after both single and multiple dosing. Close to steady-state concentrations in plasma were reached after 14 days of continuous once-daily dosing, and accumulation was confirmed for EPA, DHA, and EPA plus DHA. Of the 14 subjects treated with OM3-CA, 6 (42.9%) reported at least 1 adverse event (diarrhea) during the study, which was determined as mild and treatment emergent. No serious adverse events were reported. In summary, the pharmacokinetic profile of oral OM3-CA 4 g after single and multiple dosing in healthy Chinese subjects is consistent with that observed in other ethnic populations.
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Affiliation(s)
- Shan Jing
- Clinical Pharmacology Centre, Beijing Anzhen Hospital, Capital Medical University, Beijing, China
| | | | | | - Rui Miao
- R&D China, AstraZeneca, Shanghai, China
| | - Catarina Nilsson
- Quantitative Clinical Pharmacology, Early Clinical Development, AstraZeneca Research and Development, Gothenburg, Sweden
| | - Yang Lin
- Clinical Pharmacology Centre, Beijing Anzhen Hospital, Capital Medical University, Beijing, China
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Wang B, Zhou H, Yu X, Jing S, Zheng Q, Lan W, Li S. Determination of dynamic interfacial tension in a pulsed column under mass transfer condition. AIChE J 2020. [DOI: 10.1002/aic.16257] [Citation(s) in RCA: 5] [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] [Indexed: 11/06/2022]
Affiliation(s)
- Bo Wang
- Institute of Nuclear and New Energy TechnologyTsinghua University Beijing China
| | - Han Zhou
- Institute of Nuclear and New Energy TechnologyTsinghua University Beijing China
| | - Xiong Yu
- Institute of Nuclear and New Energy TechnologyTsinghua University Beijing China
| | - Shan Jing
- Institute of Nuclear and New Energy TechnologyTsinghua University Beijing China
| | - Qiang Zheng
- Institute of Nuclear and New Energy TechnologyTsinghua University Beijing China
| | - Wenjie Lan
- State Key Laboratory of Heavy Oil ProcessingChina University of Petroleum (Beijing) Beijing China
| | - Shaowei Li
- Institute of Nuclear and New Energy TechnologyTsinghua University Beijing China
- State Key Laboratory of Chemical EngineeringTsinghua University Beijing China
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Yu X, Zhou H, Zheng Q, Jing S, Lan W, Li S. Determining axial dispersion coefficients of pilot-scale annular pulsed disc and doughnut columns. Chin J Chem Eng 2020. [DOI: 10.1016/j.cjche.2020.03.024] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Yu X, Zhou H, Zheng Q, Jing S, Lan W, Li S. Effect of Operation Modes on Hydrodynamic Performance of Pilot-Scale Pulsed Disc-and-Doughnut and Pulsed Sieve-Plate Columns: A Comparative Study. Solvent Extraction and Ion Exchange 2020. [DOI: 10.1080/07366299.2020.1765507] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Xiong Yu
- Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing, China
| | - Han Zhou
- Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing, China
| | - Qiang Zheng
- Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing, China
| | - Shan Jing
- Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing, China
| | - Wenjie Lan
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum (Beijing), Beijing, China
| | - Shaowei Li
- Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing, China
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Yu X, Zhou H, Jing S, Lan W, Li S. Augmented CFD–PBM Simulation of Liquid–Liquid Two-Phase Flows in Liquid Extraction Columns with Wettable Internal Plates. Ind Eng Chem Res 2020. [DOI: 10.1021/acs.iecr.0c01476] [Citation(s) in RCA: 5] [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] [Indexed: 11/28/2022]
Affiliation(s)
- Xiong Yu
- Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing 100084, China
| | - Han Zhou
- Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing 100084, China
| | - Shan Jing
- Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing 100084, China
| | - Wenjie Lan
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum (Beijing), Beijing 102249, China
| | - Shaowei Li
- Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing 100084, China
- State Key Laboratory of Chemical Engineering, Tsinghua University, Beijing 100084, China
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Jing S, Malladi A. Higher growth of the apple (Malus × domestica Borkh.) fruit cortex is supported by resource intensive metabolism during early development. BMC Plant Biol 2020; 20:75. [PMID: 32054442 PMCID: PMC7020378 DOI: 10.1186/s12870-020-2280-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/30/2019] [Accepted: 02/05/2020] [Indexed: 05/19/2023]
Abstract
BACKGROUND The major fleshy tissues of the apple fruit are spatially separable into cortex and pith. These tissues display differential growth during development. Key features of such differential growth, and sink metabolic programs supporting it have not been investigated previously. We hypothesized that differential growth between these fruit tissues is supported by differential sink metabolic programs, particularly during early development. Growth, metabolite concentrations, and transcript abundance of metabolism-related genes were measured to determine characteristics of differential growth and their underlying metabolic programs. RESULTS The cortex displayed > 5-fold higher growth than the pith during early fruit development, indicating that differential growth was established during this period. Further, when resource availability was increased through sink-removal, cortex growth was preferentially enhanced. Greatest diversity in metabolic programs between these tissues was evident during early fruit development. Higher cortex growth during early development was facilitated by increased catabolism of imported carbon (C) resources, sorbitol and sucrose, and the nitrogen (N) resource, asparagine. It was also associated with enhanced primary C metabolism, and C storage as malate and quinate. The pith metabolic program during this period involved limited allocation of C and N to growth, but greater allocation to storage, and enhanced sucrose-sucrose cycling. CONCLUSIONS Together, these data indicate that the fruit cortex tissue displays a resource intensive metabolic program during early fruit development. This provides the C backbones, proteins, energy and osmolytes to support its higher growth.
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Affiliation(s)
- Shan Jing
- Department of Horticulture, University of Georgia, 1111 Miller Plant Sciences, Athens, GA 30602 USA
| | - Anish Malladi
- Department of Horticulture, University of Georgia, 1111 Miller Plant Sciences, Athens, GA 30602 USA
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Abstract
Moral responsibility is one of the core concepts in engineering ethics and consequently in most engineering ethics education. Yet, despite a growing awareness that engineers should be trained to become more sensitive to cultural differences, most engineering ethics education is still based on Western approaches. In this article, we discuss the notion of responsibility in Confucianism and explore what a Confucian perspective could add to the existing engineering ethics literature. To do so, we analyse the Citicorp case, a widely discussed case in the existing engineering ethics literature, from a Confucian perspective. Our comparison suggests the following. When compared to virtue ethics based on Aristotle, Confucianism focuses primarily on ethical virtues; there is no explicit reference to intellectual virtues. An important difference between Confucianism and most western approaches is that Confucianism does not define clear boundaries of where a person's responsibility end. It also suggests that the gap between Western and at least one Eastern approach, namely Confucianism, can be bridged. Although there are differences, the Confucian view and a virtue-based Western view on moral responsibility have much in common, which allows for a promising base for culturally inclusive ethics education for engineers.
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Affiliation(s)
- Shan Jing
- School of Humanities, Southeast University, Nanjing, 211189 Jiangsu Province People’s Republic of China
- Department of Technology, Policy and Management, Delft University of Technology, P.O. Box 5015, 2600 GA Delft, The Netherlands
| | - Neelke Doorn
- Department of Technology, Policy and Management, Delft University of Technology, P.O. Box 5015, 2600 GA Delft, The Netherlands
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Yu X, Li S, Zhou H, Jing S, Lan W, Li S. Numerically simulating droplet breakup in droplet swarm using modified level set method with multi-levels. Chem Eng Sci 2020. [DOI: 10.1016/j.ces.2019.115263] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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Affiliation(s)
| | | | | | - Wenjie Lan
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum (Beijing), Beijing 102249, China
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Jing S, Lu J, Song J, Luo S, Zhou L, Quan C, Xi J, Zhao C. P.376Effect of low-dose rituximab treatment on T- and B-cell lymphocyte imbalance in refractory myasthenia gravis. Neuromuscul Disord 2019. [DOI: 10.1016/j.nmd.2019.06.538] [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: 11/24/2022]
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Wang F, Hu N, Hu X, Jing S, Heine L, Thibaut A, Huang W, Yan Y, Wang J, Schnakers C, Laureys S, Di H. Detecting Brain Activity Following a Verbal Command in Patients With Disorders of Consciousness. Front Neurosci 2019; 13:976. [PMID: 31572121 PMCID: PMC6753948 DOI: 10.3389/fnins.2019.00976] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2019] [Accepted: 08/30/2019] [Indexed: 11/20/2022] Open
Abstract
Background The accurate assessment of patients with disorders of consciousness (DOC) is a challenge to most experienced clinicians. As a potential clinical tool, functional magnetic resonance imaging (fMRI) could detect residual awareness without the need for the patients’ actual motor responses. Methods We adopted a simple active fMRI motor paradigm (hand raising) to detect residual awareness in these patients. Twenty-nine patients were recruited. They met the diagnosis of minimally conscious state (MCS) (male = 6, female = 2; n = 8), vegetative state/unresponsive wakefulness syndrome (VS/UWS) (male = 17, female = 4; n = 21). Results We analyzed the command-following responses for robust evidence of statistically reliable markers of motor execution, similar to those found in 15 healthy controls. Of the 29 patients, four (two MCS, two VS/UWS) could adjust their brain activity to the “hand-raising” command, and they showed activation in motor-related regions (which could not be discovered in the own-name task). Conclusion Longitudinal behavioral assessments showed that, of these four patients, two in a VS/UWS recovered to MCS and one from MCS recovered to MCS+ (i.e., showed command following). In patients with no response to hand raising task, six VS/UWS and three MCS ones showed recovery in follow-up procedure. The simple active fMRI “hand-raising” task can elicit brain activation in patients with DOC, similar to those observed in healthy volunteers. Activity of the motor-related network may be taken as an indicator of high-level cognition that cannot be discerned through conventional behavioral assessment.
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Affiliation(s)
- Fuyan Wang
- International Unresponsive Wakefulness Syndrome and Consciousness Science Institute, Hangzhou Normal University, Hangzhou, China.,Department of Radiology, The Affiliated Hospital of Hangzhou Normal University, Hangzhou, China
| | - Nantu Hu
- International Unresponsive Wakefulness Syndrome and Consciousness Science Institute, Hangzhou Normal University, Hangzhou, China
| | - Xiaohua Hu
- International Unresponsive Wakefulness Syndrome and Consciousness Science Institute, Hangzhou Normal University, Hangzhou, China.,Department of Rehabilitation, Hangzhou Wujing Hospital, Hangzhou, China
| | - Shan Jing
- Department of Rehabilitation, Hangzhou Wujing Hospital, Hangzhou, China
| | - Lizette Heine
- INSERM, U1028, CNRS, UMR5292, Auditory Cognition and Psychoacoustics Team, Lyon Neuroscience Research Center, Lyon, France.,Coma Science Group, GIGA-Research, CHU University Hospital of Liège, Liège, Belgium
| | - Aurore Thibaut
- Coma Science Group, GIGA-Research, CHU University Hospital of Liège, Liège, Belgium
| | - Wangshan Huang
- International Unresponsive Wakefulness Syndrome and Consciousness Science Institute, Hangzhou Normal University, Hangzhou, China
| | - Yifan Yan
- International Unresponsive Wakefulness Syndrome and Consciousness Science Institute, Hangzhou Normal University, Hangzhou, China
| | - Jing Wang
- International Unresponsive Wakefulness Syndrome and Consciousness Science Institute, Hangzhou Normal University, Hangzhou, China
| | - Caroline Schnakers
- Coma Science Group, GIGA-Research, CHU University Hospital of Liège, Liège, Belgium.,Department of Neurosurgery, University of California, Los Angeles, Los Angeles, CA, United States
| | - Steven Laureys
- Coma Science Group, GIGA-Research, CHU University Hospital of Liège, Liège, Belgium
| | - Haibo Di
- International Unresponsive Wakefulness Syndrome and Consciousness Science Institute, Hangzhou Normal University, Hangzhou, China
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35
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Guo Z, Zhang J, Gong Z, Jing S. Correlation of factors associated with postoperative infection in patients with malignant oral and maxillofacial tumours: a logistic regression analysis. Br J Oral Maxillofac Surg 2019; 57:460-465. [DOI: 10.1016/j.bjoms.2019.04.003] [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] [Received: 10/17/2018] [Accepted: 04/04/2019] [Indexed: 11/25/2022]
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36
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Yu X, Zhou H, Jing S, Lan W, Li S. CFD–PBM simulation of two-phase flow in a pulsed disc and doughnut column with directly measured breakup kernel functions. Chem Eng Sci 2019. [DOI: 10.1016/j.ces.2019.03.010] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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37
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Affiliation(s)
- Tingliang Xie
- Institute of Nuclear and New Energy Technology, Collaborative Innovation Center of Advanced Nuclear Energy Technology, Tsinghua University, Beijing 100084, P. R. China
| | - Shan Jing
- Institute of Nuclear and New Energy Technology, Collaborative Innovation Center of Advanced Nuclear Energy Technology, Tsinghua University, Beijing 100084, P. R. China
| | - Cong Xu
- Institute of Nuclear and New Energy Technology, Collaborative Innovation Center of Advanced Nuclear Energy Technology, Tsinghua University, Beijing 100084, P. R. China
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38
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Zhou H, Jing S, Yu X, Zhou H, Lan W, Li S. Study of droplet breakage in a pulsed disc and doughnut column-Part I: Experiments and correlations. Chem Eng Sci 2019. [DOI: 10.1016/j.ces.2018.12.017] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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39
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Haige Z, Jing S, Yixing C, Zhaochong Z. EP-1429 IG-IMRT improves short-term survival for lymph node metastases from hepatocellular carcinoma. Radiother Oncol 2019. [DOI: 10.1016/s0167-8140(19)31849-3] [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: 11/26/2022]
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40
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41
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Yu X, Zhou H, Jing S, Lan W, Li S. 3D-CFD Simulation of Liquid–Liquid Two-Phase Flow in A Pilot-Plant Scale Annular Pulsed Disc and Doughnut Column. Solvent Extraction and Ion Exchange 2018. [DOI: 10.1080/07366299.2018.1494528] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Affiliation(s)
- Xiong Yu
- Collaborative Innovation Center of Advanced Nuclear Energy Technology, Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing, China
| | - Han Zhou
- Collaborative Innovation Center of Advanced Nuclear Energy Technology, Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing, China
| | - Shan Jing
- Collaborative Innovation Center of Advanced Nuclear Energy Technology, Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing, China
| | - Wenjie Lan
- State Key Laboratory of Heavy Oil Processing, China University of Petroleum (Beijing), Beijing, China
| | - Shaowei Li
- Collaborative Innovation Center of Advanced Nuclear Energy Technology, Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing, China
- State Key Laboratory of Chemical Engineering, Tsinghua University, Beijing, China
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42
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Chen W, Jing M, Zhang Q, Yuan R, Jing S. A meta-analysis evaluating the relationship between IL-18 gene promoter polymorphisms and an individual's susceptibility to HCV infection. Acta Gastroenterol Belg 2018; 81:39-44. [PMID: 29562376] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
BACKGROUND Several observational studies have investigated interleukin-18 (IL-18) gene polymorphisms with regard to susceptibility to hepatitis C virus (HCV) infection, but the results have been inconsistent. AIM To evaluate the relationships between functional polymorphisms in the IL-18 gene and an individual's susceptibility to HCV infection, a meta-analysis was performed. Methods: A literature search was conducted using the PubMed, EMBASE, Web of Science and China BioMedicine databases to investigate the correlation between IL-18 gene polymorphisms and susceptibility to HCV infection. Crude odds ratios (ORs) with 95% confidence intervals (CIs) were calculated. RESULTS The polymorphisms IL-18-607 C>A and -137 G>C were correlated with susceptibility to HCV infection in Asian populations. However, there was no evidence indicating a correlation between either of these polymorphisms and susceptibility to HCV infection in Caucasian populations. CONCLUSIONS Our current meta-analysis suggests that the -607 C>A and -137 G>C polymorphisms in the IL-18 gene promoter play important roles in determining the response to HCV in Asian populations. More studies with larger sample sizes are needed to evaluate the associations between IL-18 genetic polymorphisms and HCV infection risk.
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Affiliation(s)
- W Chen
- Medical School, Kunming University of Science and Technology, 727 South Jingming Road, Kunming, Yunnan, 650500, China
| | - M Jing
- Medical School, Kunming University of Science and Technology, 727 South Jingming Road, Kunming, Yunnan, 650500, China
| | - Q Zhang
- Medical School, Kunming University of Science and Technology, 727 South Jingming Road, Kunming, Yunnan, 650500, China
| | - R Yuan
- Medical School, Kunming University of Science and Technology, 727 South Jingming Road, Kunming, Yunnan, 650500, China
| | - S Jing
- Medical School, Kunming University of Science and Technology, 727 South Jingming Road, Kunming, Yunnan, 650500, China
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43
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Affiliation(s)
- Wenjie Lan
- State
Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing 102249, China
| | - Yinjie Du
- State
Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing 102249, China
| | - Xuqiang Guo
- State
Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing 102249, China
| | - Aixian Liu
- State
Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing 102249, China
| | - Shan Jing
- Institute
of Nuclear and New Energy Technology, Tsinghua University, Beijing 100084, China
| | - Shaowei Li
- Institute
of Nuclear and New Energy Technology, Tsinghua University, Beijing 100084, China
- State
Key Laboratory of Chemical Engineering, Tsinghua University, Beijing 100084, China
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44
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Wang J, Zhao Q, Huang X, Jing S, Wang Y, Cao F. Feasibility Analysis of Involved-Field Irradiation in Patients With Locally Advanced Adenocarcinoma of the Gastroesophageal Junction in Siewert’s Type 2 and 3 Undergoing Preoperative Concurrent Chemoradiation Therapy. Int J Radiat Oncol Biol Phys 2017. [DOI: 10.1016/j.ijrobp.2017.06.1071] [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: 11/24/2022]
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45
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Cheng Y, Wang Q, Wang J, Jing S, Liu Q. Nutrition Status and Inflammatory Indexes Could Predict Acute Toxicity After Concurrent Chemoradiation Therapy for Esophageal Carcinoma. Int J Radiat Oncol Biol Phys 2017. [DOI: 10.1016/j.ijrobp.2017.06.937] [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: 11/15/2022]
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46
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Jing S, Ying P, Hu X, Yu Z, Sun J, Ding Y, Du H, Song S. Protective effect of grifolin against brain injury in an acute cerebral ischemia rat model. TROP J PHARM RES 2017. [DOI: 10.4314/tjpr.v16i6.13] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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47
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Affiliation(s)
- Hao Zhou
- Collaborative Innovation Center of Advanced Nuclear Energy Technology, Institute of Nuclear and New Energy TechnologyTsinghua UniversityBeijing100084 China
| | - Shan Jing
- Collaborative Innovation Center of Advanced Nuclear Energy Technology, Institute of Nuclear and New Energy TechnologyTsinghua UniversityBeijing100084 China
| | - Qi Fang
- Collaborative Innovation Center of Advanced Nuclear Energy Technology, Institute of Nuclear and New Energy TechnologyTsinghua UniversityBeijing100084 China
| | - Shaowei Li
- Collaborative Innovation Center of Advanced Nuclear Energy Technology, Institute of Nuclear and New Energy TechnologyTsinghua UniversityBeijing100084 China
| | - Wenjie Lan
- State Key Laboratory of Heavy Oil ProcessingChina University of Petroleum (Beijing)Beijing102249 China
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48
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Liu JQ, Li SW, Wang YY, Zhang Q, Jing S. Extraction of Uranium Nitrate with 30% (v/v) Tributyl Phosphate in Kerosene in a Pilot Annular Pulsed Disc-and-Doughnut Column—Part II: Axial Mixing and Mass Transfer Performance. Solvent Extraction and Ion Exchange 2017. [DOI: 10.1080/07366299.2017.1308179] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Jian-Quan Liu
- Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing, P.R. China
- CNNC Nuclear Fuel Reprocessing Co., Ltd., Beijing, P.R. China
| | - Shao-Wei Li
- Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing, P.R. China
| | - Yue-Yun Wang
- CNNC Nuclear Fuel Reprocessing Co., Ltd., Beijing, P.R. China
| | - Qi Zhang
- CNNC Nuclear Fuel Reprocessing Co., Ltd., Beijing, P.R. China
| | - Shan Jing
- Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing, P.R. China
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49
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Liu JQ, Li SW, Wang YY, Jing S. Extraction of Uranium Nitrate with 30% (v/v) Tributyl Phosphate in Kerosene in an Pilot Annular Pulsed Disc-and-Doughnut Column—Part I: Hydraulic Performance. Solvent Extraction and Ion Exchange 2017. [DOI: 10.1080/07366299.2016.1275257] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Jian-quan Liu
- Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing, China
- CNNC Nuclear Fuel Reprocessing Co., Ltd., Beijing, China
| | - Shao-wei Li
- Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing, China
| | - Yue-yun Wang
- CNNC Nuclear Fuel Reprocessing Co., Ltd., Beijing, China
| | - Shan Jing
- Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing, China
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50
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Wei R, Wang X, Zhang Y, Mukherjee S, Zhang L, Chen Q, Huang X, Jing S, Liu C, Li S, Wang G, Xu Y, Zhu S, Williams AJ, Sun F, Yin CC. Structural insights into Ca(2+)-activated long-range allosteric channel gating of RyR1. Cell Res 2016; 26:977-94. [PMID: 27573175 PMCID: PMC5034117 DOI: 10.1038/cr.2016.99] [Citation(s) in RCA: 74] [Impact Index Per Article: 9.3] [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: 07/28/2016] [Revised: 07/31/2016] [Accepted: 08/03/2016] [Indexed: 12/12/2022] Open
Abstract
Ryanodine receptors (RyRs) are a class of giant ion channels with molecular mass over 2.2 mega-Daltons. These channels mediate calcium signaling in a variety of cells. Since more than 80% of the RyR protein is folded into the cytoplasmic assembly and the remaining residues form the transmembrane domain, it has been hypothesized that the activation and regulation of RyR channels occur through an as yet uncharacterized long-range allosteric mechanism. Here we report the characterization of a Ca2+-activated open-state RyR1 structure by cryo-electron microscopy. The structure has an overall resolution of 4.9 Å and a resolution of 4.2 Å for the core region. In comparison with the previously determined apo/closed-state structure, we observed long-range allosteric gating of the channel upon Ca2+ activation. In-depth structural analyses elucidated a novel channel-gating mechanism and a novel ion selectivity mechanism of RyR1. Our work not only provides structural insights into the molecular mechanisms of channel gating and regulation of RyRs, but also sheds light on structural basis for channel-gating and ion selectivity mechanisms for the six-transmembrane-helix cation channel family.
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Affiliation(s)
- Risheng Wei
- Department of Biophysics, The Health Science Center, Peking University, Beijing 100191, China
| | - Xue Wang
- National Laboratory of Biomacromolecules, CAS Center for Excellence in Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, China.,College of Life Science, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yan Zhang
- National Laboratory of Biomacromolecules, CAS Center for Excellence in Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, China
| | - Saptarshi Mukherjee
- Wales Heart Research Institute, Cardiff University School of Medicine, Cardiff CF14 4XN, UK
| | - Lei Zhang
- Department of Biophysics, The Health Science Center, Peking University, Beijing 100191, China.,Electron Microscopy Analysis Laboratory, The Health Science Center, Peking University, Beijing 100191, China
| | - Qiang Chen
- Department of Biophysics, The Health Science Center, Peking University, Beijing 100191, China
| | - Xinrui Huang
- Department of Biophysics, The Health Science Center, Peking University, Beijing 100191, China
| | - Shan Jing
- Department of Biophysics, The Health Science Center, Peking University, Beijing 100191, China
| | - Congcong Liu
- Department of Biophysics, The Health Science Center, Peking University, Beijing 100191, China
| | - Shuang Li
- Department of Biophysics, The Health Science Center, Peking University, Beijing 100191, China
| | - Guangyu Wang
- Department of Biophysics, The Health Science Center, Peking University, Beijing 100191, China
| | - Yaofang Xu
- Department of Biophysics, The Health Science Center, Peking University, Beijing 100191, China
| | - Sujie Zhu
- Department of Biophysics, The Health Science Center, Peking University, Beijing 100191, China
| | - Alan J Williams
- Wales Heart Research Institute, Cardiff University School of Medicine, Cardiff CF14 4XN, UK
| | - Fei Sun
- National Laboratory of Biomacromolecules, CAS Center for Excellence in Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, China.,College of Life Science, University of Chinese Academy of Sciences, Beijing 100049, China.,Center for Biological Imaging, Institute of Biophysics, Chinese Academy of Sciences, Beijing 100101, China
| | - Chang-Cheng Yin
- Department of Biophysics, The Health Science Center, Peking University, Beijing 100191, China.,Electron Microscopy Analysis Laboratory, The Health Science Center, Peking University, Beijing 100191, China.,Center for Protein Science, Peking University, Beijing 100871, China
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