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Shen C, Gharleghi R, Li DD, Stevens M, Dokos S, Beier S. Secondary flow in bifurcations - Important effects of curvature, bifurcation angle and stents. J Biomech 2021; 129:110755. [PMID: 34601214 DOI: 10.1016/j.jbiomech.2021.110755] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2020] [Revised: 09/01/2021] [Accepted: 09/16/2021] [Indexed: 12/27/2022]
Abstract
Coronary bifurcations have complex flow patterns including secondary flow zones and helical flow, which directly affect pathophysiological mechanisms such as the development of atherosclerosis. The objective of this study was to generate insights into the effects of curvature, bifurcation angle and the presence of stents on flow patterns and resulting haemodynamics in coronary left main bifurcations. The blood flow and associated metrics were modelled in both idealised and patient-specific bifurcations with varying curvature and bifurcation angles with and without stents, resulting in a total of 128 geometries considered. The results showed that larger curvature of bifurcating vessels has a significant influence on secondary flow, especially with distance to the bifurcation region, causing a skew, spin and asymmetry of Dean vortices, an increase in helical flow intensity with symmetry loss, and a decrease in adversely low time-average wall shear stress (TAWSS). Generally, asymmetric flow patterns coincided with adversely low TAWSS regions. In identical stented geometries, the presence of the stents induced local recirculation immediately adjacent to the stent struts, thus generating adversely low TAWSS in these areas, with some effect on the overall secondary flow. Overall, the effect of stents outweighed the effect of curvature and BA. This new knowledge contributes to a better understanding of the joint effects of curvature, bifurcation angle, and stents on flow patterns and haemodynamics in coronary bifurcations.
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Boltz T, Moritz J, Ayres V, Showman C, Jaczynski J, Shen C. Modeling thermal inactivation of Salmonella Typhimurium in mash broiler feed. J APPL POULTRY RES 2021. [DOI: 10.1016/j.japr.2021.100208] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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53
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Shen C, Frakes J, Niu J, Rosenberg A, Weiss J, Caudell J, Jameson K, Said P, Seiwert T. NBTXR3 Activated by Radiotherapy in Combination With Nivolumab or Pembrolizumab in Patients With Advanced Cancers: A Phase I Trial. Int J Radiat Oncol Biol Phys 2021. [DOI: 10.1016/j.ijrobp.2021.07.1075] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Shumway J, Torras M, Hayes KR, Jolly T, Dees E, Ray E, Carey L, Shen C. Outcomes of Patients With HER2-Positive Breast Cancer Metastatic to Brain Treated With HER2-Targeted Systemic Therapy and Stereotactic Radiosurgery. Int J Radiat Oncol Biol Phys 2021. [DOI: 10.1016/j.ijrobp.2021.07.1558] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Sud S, Tatko S, Tan X, Gu D, Harris S, Lafata J, Shen C, Royce T. Associations With Virtual Visit Use Among Patients Receiving Radiation Therapy. Int J Radiat Oncol Biol Phys 2021. [DOI: 10.1016/j.ijrobp.2021.07.1008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Fried D, Zhu T, Das S, Shen C, Pearlstein K, Marks L, Chera B. Functional Parotid Sparing: Does Sparing the Parotid Ducts Yield Improvements in Patient Reported Xerostomia? Int J Radiat Oncol Biol Phys 2021. [DOI: 10.1016/j.ijrobp.2021.07.185] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Shen C, Chiang C, Luo Y, Huang H, Chiu C. FP12.05 The Intrinsic Limitation and Clinical Impact of Mutant Allele-Specific Real-Time PCR-Based EGFR Mutation Assay in NSCLC. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.08.245] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Shen C, Frakes J, Niu J, Rosenberg A, Weiss J, Caudell J, Jameson K, Said P, Seiwert T. MA03.03 NBTXR3 Activated by SBRT Combined with Nivolumab or Pembrolizumab in Patients With Advanced Cancers: Phase I Trial. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.08.119] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Vivar O, Shen C, Frakes J, Niu J, Rosenberg A, Weiss J, Caudell J, Jameson K, Said P, Seiwert T. PH-0053 NBTXR3 activated by SBRT combined with nivolumab or pembrolizumab in advanced cancers: phase I trial. Radiother Oncol 2021. [DOI: 10.1016/s0167-8140(21)07235-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Mu M, Cai Z, Shen C, Wang J, Zhang B. P-93 The characteristics and prognosis of extragastrointestinal stromal tumors: A single center retrospective analysis of 31 patients. Ann Oncol 2021. [DOI: 10.1016/j.annonc.2021.05.148] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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Cai Z, Liu C, Shen C, Jiang Z, Mu M, Zhang B. P-227 Comparative safety and tolerability of approved PARP inhibitors in cancer: A systematic review and network meta-analysis. Ann Oncol 2021. [DOI: 10.1016/j.annonc.2021.05.281] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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Everett D, Ke W, Paquet JF, Vujanovic G, Bass SA, Du L, Gale C, Heffernan M, Heinz U, Liyanage D, Luzum M, Majumder A, McNelis M, Shen C, Xu Y, Angerami A, Cao S, Chen Y, Coleman J, Cunqueiro L, Dai T, Ehlers R, Elfner H, Fan W, Fries RJ, Garza F, He Y, Jacak BV, Jacobs PM, Jeon S, Kim B, Kordell M, Kumar A, Mak S, Mulligan J, Nattrass C, Oliinychenko D, Park C, Putschke JH, Roland G, Schenke B, Schwiebert L, Silva A, Sirimanna C, Soltz RA, Tachibana Y, Wang XN, Wolpert RL. Phenomenological Constraints on the Transport Properties of QCD Matter with Data-Driven Model Averaging. PHYSICAL REVIEW LETTERS 2021; 126:242301. [PMID: 34213947 DOI: 10.1103/physrevlett.126.242301] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/02/2020] [Revised: 03/05/2021] [Accepted: 05/27/2021] [Indexed: 06/13/2023]
Abstract
Using combined data from the Relativistic Heavy Ion and Large Hadron Colliders, we constrain the shear and bulk viscosities of quark-gluon plasma (QGP) at temperatures of ∼150-350 MeV. We use Bayesian inference to translate experimental and theoretical uncertainties into probabilistic constraints for the viscosities. With Bayesian model averaging we propagate an estimate of the model uncertainty generated by the transition from hydrodynamics to hadron transport in the plasma's final evolution stage, providing the most reliable phenomenological constraints to date on the QGP viscosities.
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Arnold H, Drake JF, Swisdak M, Guo F, Dahlin JT, Chen B, Fleishman G, Glesener L, Kontar E, Phan T, Shen C. Electron Acceleration during Macroscale Magnetic Reconnection. PHYSICAL REVIEW LETTERS 2021; 126:135101. [PMID: 33861105 DOI: 10.1103/physrevlett.126.135101] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/10/2020] [Revised: 01/19/2021] [Accepted: 03/01/2021] [Indexed: 06/12/2023]
Abstract
The first self-consistent simulations of electron acceleration during magnetic reconnection in a macroscale system are presented. Consistent with solar flare observations, the spectra of energetic electrons take the form of power laws that extend more than two decades in energy. The drive mechanism for these nonthermal electrons is Fermi reflection in growing and merging magnetic flux ropes. A strong guide field suppresses the production of nonthermal electrons by weakening the Fermi drive mechanism. For a weak guide field the total energy content of nonthermal electrons dominates that of the hot thermal electrons even though their number density remains small. Our results are benchmarked with the hard x-ray, radio, and extreme ultraviolet observations of the X8.2-class solar flare on September 10, 2017.
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Tang X, Chang S, Zhang K, Luo Q, Zhang Z, Wang T, Qiao W, Wang C, Shen C, Zhang Z, Zhu X, Wei X, Dong C, Zhang X, Dong H. Structural basis for bacterial lipoprotein relocation by the transporter LolCDE. Nat Struct Mol Biol 2021; 28:347-355. [PMID: 33782615 DOI: 10.1038/s41594-021-00573-x] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2020] [Accepted: 02/17/2021] [Indexed: 02/05/2023]
Abstract
Lipoproteins in the outer membrane of Gram-negative bacteria are involved in various vital physiological activities, including multidrug resistance. Synthesized in the cytoplasm and matured in the inner membrane, lipoproteins must be transported to the outer membrane through the Lol pathway mediated by the ATP-binding cassette transporter LolCDE in the inner membrane via an unknown mechanism. Here, we report cryo-EM structures of Escherichia coli LolCDE in apo, lipoprotein-bound, LolA-bound, ADP-bound and AMP-PNP-bound states at a resolution of 3.2-3.8 Å, covering the complete lipoprotein transport cycle. Mutagenesis and in vivo viability assays verify features of the structures and reveal functional residues and structural characteristics of LolCDE. The results provide insights into the mechanisms of sorting and transport of outer-membrane lipoproteins and may guide the development of novel therapies against multidrug-resistant Gram-negative bacteria.
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Xu HR, Wang X, Wang YD, Shen C, Zhao CY. [Autophagy in the liver failure]. ZHONGHUA GAN ZANG BING ZA ZHI = ZHONGHUA GANZANGBING ZAZHI = CHINESE JOURNAL OF HEPATOLOGY 2020; 28:1069-1072. [PMID: 34865359 DOI: 10.3760/cma.j.cn501113-20190803-00288] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Liver failure is a severe liver disease syndrome, with massive or sub-massive liver tissues necrosis, and it develops rapidly, with poor clinical prognosis and high mortality. In recent years, autophagy role in the liver failure has received increasing attention. The study of the role of regulatory mechanism of autophagy is of great significance for the in-depth study of the prevention and treatment of liver failure. Based on the research progress of liver failure at home and abroad, this paper explores and summarizes the relationship between autophagy with necrosis and apoptosis, as well as the mechanism and expression level of autophagy in each stage of liver failure, with hope to provide reference for the in-depth research and clinical treatment of liver failure.
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Yang Z, Fan L, Kwon K, Pan J, Shen C, Tao J, Ji F. Age estimation for children and young adults by volumetric analysis of upper anterior teeth using cone-beam computed tomography data. Folia Morphol (Warsz) 2020; 79:851-859. [DOI: 10.5603/fm.a2020.0004] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2019] [Revised: 01/01/2020] [Accepted: 01/02/2020] [Indexed: 11/25/2022]
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Li JX, Li Y, Liu FC, Chen JC, Cao J, Chen SF, Hu DS, Shen C, Huang JF, Lu XF, Gu DF. [Cardiovascular disease risk in diabetes patients aged 40 years old and above in China]. ZHONGHUA XIN XUE GUAN BING ZA ZHI 2020; 48:968-974. [PMID: 33210870 DOI: 10.3760/cma.j.cn112148-20191203-00733] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Objective: To evaluate the incidence of cardiovascular disease (CVD), ischemic and hemorrhagic cardiovascular events among Chinese diabetic patients aged 40 years and above with different CVD risk levels. Methods: This study enrolled participants aged 40 years and above in 15 provinces from a prospective cohort study, the China-PAR project (Prediction for Atherosclerotic Cardiovascular Disease Risk in China). Participants were categorized into two groups according to the presence or absence of diabetes at baseline. Individuals were further classified into low (0-4.9%), moderate (5%-9.9%) and high risk groups (≥10%), based on predicted ten-year CVD risk using the China-PAR equations. Two followed-up surveys were conducted between 2007 and 2015 to identify CVD events, which were defined as nonfatal acute myocardial infarction, or death due to coronary heart disease, or stroke. Ischemic cardiovascular events included nonfatal acute myocardial infarction, or death due to coronary heart disease, or ischemic stroke. Hemorrhagic cardiovascular events included subarachnoid hemorrhage and intracerebral hemorrhage. The incidences of CVD, ischemic and hemorrhagic cardiovascular events were compared in diabetes and non-diabetes population with different CVD risk levels. Results: This study included 89 209 participants aged 40 years and above, the average follow-up period was 8.5 years. The age was (54.8±9.4) years, and 36 794 (41.2%) were men, and 5 730 (6.4%) were diabetic patients. In diabetes patients aged 40 years and above, 53.7% (3 075/5 730) were at high risk of CVD. Age-and sex-adjusted incidence of CVD, ischemic and hemorrhagic cardiovascular events (1 066.93/100 000 person-years, 824.23/100 000 person-years, and 211.56/100 000 person-years) were significantly lower in diabetes patients than those in non-diabetes population with high CVD risk (1 773.73/100 000 person-years, 1 228.18/100 000 person-years, and 446.49/100 000 person-years) (all P<0.001). Among high CVD risk populations, incidence of ischemic events was significantly higher in diabetic patients than in non-diabetes population (1 638.47/100 000 person-years vs. 1 228.18/100 000 person-years, P<0.001), but incidence of hemorrhagic events tended to be lower in diabetic patients than in non-diabetes population (415.70/100 000 person-years vs. 446.49/100 000 person-years, P=0.635). Incidence of ischemic and hemorrhagic events were similar between diabetes patients and non-diabetes population at low or moderate CVD risk groups (all P>0.05). Conclusions: More than half of diabetes patients aged 40 years and above in China have high CVD risk. The incidence of CVD, ischemic and hemorrhagic cardiovascular events are different in diabetic patients with different CVD risk levels.
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Wu H, Li X, Shen C. Peroxisome proliferator-activated receptor gamma in white and brown adipocyte regulation and differentiation. Physiol Res 2020; 69:759-773. [PMID: 32901494 DOI: 10.33549/physiolres.934411] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
In as early as 1997, the World Health Organization officially recognized obesity as a chronic disease. The current epidemic of obesity and overweightness has aroused great interest in the study of adipose tissue formation. The transcription factor peroxisome proliferator-activated receptor gamma (PPARgamma) binds to the target gene promoter regulatory sequences, acting as a key factor in regulating the differentiation of preadipocytes in the adipose tissue, and plays an important role in regulating the adipocyte metabolism. A further understanding of the structure and expression characteristics of PPARgamma, in addition to its mechanisms of action in adipocyte differentiation, may be applied to control obesity and prevent obesity-related diseases. In this article, recent studies investigating the effect of regulating PPARgamma on adipocyte differentiation are reviewed. In particular, the structural characteristics, expression patterns, and molecular mechanisms of PPARgamma function in adipocyte differentiation are considered.
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Shen C, Christensen L, Rasmussen P, Kragh K. In vitro immunomodulatory effects of thymol and cinnamaldehyde in a pig intestinal epithelial cell line (IPEC-J2). JOURNAL OF APPLIED ANIMAL NUTRITION 2020. [DOI: 10.3920/jaan2020.0010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Thymol and cinnamaldehyde are phytogenic feed additives developed to improve gut health and growth performance in poultry and swine. This study evaluated the in vitro immune modulating effects of thymol and cinnamaldehyde blend (TCB) in a porcine gut epithelial cell line (IPEC-J2), with or without cellular damage caused by challenge with lipopolysaccharides. Cytotoxicity, permeability, wound-healing and bacteria adhesion assays were recorded. The expression of cytokines, tight junctions and polymeric immunoglobulin receptor (pIgR) were measured by RT-PCR. The IPEC-J2 cells were cultured in the presence of TCB at concentrations ranging from 1 ng/ml to 1 μg/ml and displayed high viability (>90%). TCB increased barrier integrity (13.8% less in lipopolysaccharide challenge which induced gut epithelial leakage, P<0.05) and accelerated the initial speed of wound recovery (day 1, 26% wound recovery in TCB treated vs 7% in control, P<0.05; day 2, 54 vs 39%, P<0.001). The RT-PCR analysis of cell culture showed that TCB upregulated anti-inflammatory cytokine interleukin (IL)-10 (73.3%, P<0.05) in non-stimulated IPEC-J2 cells, while, when stimulated, pIgR (9.7%, P<0.05) and tight junctions claudin-4 (9.4%, P<0.05) were upregulated by TCB. Furthermore, TCB significantly increased Lactobacillus acidophilus adherence to gut epithelial cells (285.0%, P<0.05). Overall, the current in vitro study showed that TCB can induce various immune responses, which may explain its in vivo benefits as feed additive.
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Shen C, Zhou X, Yang Y, Hu C. Body Composition As A Predictor Of Critical Toxicities In Patients With Locoregionally Nasopharyngeal Carcinoma Undergoing Neoadjuvant Chemotherapy. Int J Radiat Oncol Biol Phys 2020. [DOI: 10.1016/j.ijrobp.2020.07.332] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Shen C, Buchsbaum J, Vogelius I, Mayo C, Inskip P, Ulin K, WIlson M, Francis J, Whelan K, Constine L, Terezakis S. Risks of Retinopathy and Optic Neuropathy after Radiotherapy for Childhood Cancer: A Report From the Pediatric Normal Tissue Effects in the Clinic (PENTEC) Initiative. Int J Radiat Oncol Biol Phys 2020. [DOI: 10.1016/j.ijrobp.2020.07.1516] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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72
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Ou X, Shen C, He X, Hu C. Germline Mutation Landscape of DNA Damage Repair Genes in Nasopharyngeal Carcinoma. Int J Radiat Oncol Biol Phys 2020. [DOI: 10.1016/j.ijrobp.2020.07.2168] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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73
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Wolfe A, Yang L, Robb R, Shen C, Williams T. A KRAS-RAD18-miR-296-3p Regulated Network Mediates Radioresistance in Pancreatic Cancer Through Homologous Recombination. Int J Radiat Oncol Biol Phys 2020. [DOI: 10.1016/j.ijrobp.2020.07.2111] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Gonzalez Y, Shen C, Wang C, Albuquerque K, Jia X. OC-1042: Deep-learning based Physician’s Preference Prediction For HDR Brachytherapy Of Cervical Cancer. Radiother Oncol 2020. [DOI: 10.1016/s0167-8140(21)01979-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Shen C, Frakes J, Weiss J, Caudell J, Hackman T, Akulian J, El-Haddad G, Dixon R, Hu Y, Pearson A, Barsoumian H, Cortez M, Jameson K, Said P, Welsh J, Seiwert T. NBTXR3 Radiation Enhancing Hafnium Oxide Nanoparticles Activated By Radiotherapy In Combination With Anti-PD-1 Therapy: A Phase I Study. Int J Radiat Oncol Biol Phys 2020. [DOI: 10.1016/j.ijrobp.2020.07.408] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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76
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Van Buren A, Quinsey C, Sasaki-Adams D, Jaikumar S, Ewend M, Tepper J, Shen C. Local Control and Toxicity Following Hypofractionated Stereotactic Radiotherapy for Intracranial Meningioma. Int J Radiat Oncol Biol Phys 2020. [DOI: 10.1016/j.ijrobp.2020.07.2007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Wang X, Xu HR, Wang YD, Shen C, Zhao CY. [Liver failure and glucocorticoid resistance]. ZHONGHUA GAN ZANG BING ZA ZHI = ZHONGHUA GANZANGBING ZAZHI = CHINESE JOURNAL OF HEPATOLOGY 2020; 28:888-892. [PMID: 33105937 DOI: 10.3760/cma.j.cn501113-20200629-00349] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
The main pathogenesis of liver failure is immune damage and uncontrolled inflammatory response. Glucocorticoids have strong immunosuppressive and anti-inflammatory effects, and are considered to be useful for the treatment of liver failure. However, the results of many clinical studies have shown that the application of glucocorticoids in patients with liver failure cannot effectively improve the prognosis, but instead increases the chance of infection and endangers life. Provided that, it seems reasonable to assume that glucocorticoid resistance exists in patients with liver failure. This article analyzes the mechanism by which P-glycoprotein reverses glucocorticoid transport, intracellular glucocorticoid signaling pathway dysfunction and related gene mutations when the inflammatory response is uncontrolled. In addition, we also evaluated the sensitivity of glucocorticoids in patients with liver failure, so as to provide theoretical basis for efficacy and medication timing.
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Shen C, Xu Y, Lu TF, Zhang JJ, Qian YB, Xu N. LncRNA TATDN1 induces the progression of hepatocellular carcinoma via targeting miRNA-6089. EUROPEAN REVIEW FOR MEDICAL AND PHARMACOLOGICAL SCIENCES 2020; 23:6459-6466. [PMID: 31378885 DOI: 10.26355/eurrev_201908_18529] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE To clarify the potential effect of long non-coding RNA (lncRNA) TATDN1 on accelerating the proliferative rate and cell cycle progression of hepatocellular carcinoma (HCC) via sponging miRNA-6089, thus participating in the progression of HCC. PATIENTS AND METHODS TATDN1 expression in HCC tissues and normal tissues was first determined by quantitative Real Time-Polymerase Chain Reaction (qRT-PCR). The correlation between TATDN1 expression to metastasis and overall survival of HCC was analyzed. The cellular level of TATDN1 in HCC cell lines was examined as well. Regulatory effects of TATDN1 on cell cycle progression and viability of HepG2 and SMMC7721 cells were evaluated. Subsequently, a potential target of TATDN1 was screened out and verified by Dual-Luciferase reporter gene assay. The expression pattern and biological function of the target gene miRNA-6089 in HCC were also determined. In a similar way, LIX1L was verified to be the target of miRNA-6089 and tested for its biological function in HCC. RESULTS TATDN1 was upregulated in HCC tissues and cell lines. The overexpression of TATDN1 accelerated the proliferative rate and cell cycle progression of HCC. MiRNA-6089, the target gene of TATDN1, was lowly expressed in HCC. The overexpression of miRNA-6089 partially reversed the promotive role of TATDN1 in regulating the proliferation and cell cycle of HCC cells. Subsequently, LIX1L was verified to be the target of miRNA-6089. The overexpression of LIX1L partially reversed the regulatory effect of miRNA-6089 on the proliferative rate and cell cycle progression of HCC. CONCLUSIONS TATDN1 accelerates the proliferative rate and cell cycle progression of HCC by degrading miRNA-6089 to upregulate LIX1L.
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Shen C. Meet Our Associate Editorial Board Member. CURRENT GREEN CHEMISTRY 2020. [DOI: 10.2174/221334610702200721121342] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Yuan Y, Shen C, Zhao SL, Hu YJ, Song Y, Zhong QJ. MicroRNA-126 affects cell apoptosis, proliferation, cell cycle and modulates VEGF/TGF-β levels in pulmonary artery endothelial cells. EUROPEAN REVIEW FOR MEDICAL AND PHARMACOLOGICAL SCIENCES 2020; 23:3058-3069. [PMID: 31002170 DOI: 10.26355/eurrev_201904_17588] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE In the clinic, therapeutic options for pulmonary arterial hypertension are limited; therefore, investigating the therapeutic strategies and novel therapies is critical for pulmonary arterial hypertension (PAH) treatment. This study aimed to evaluate the role of miRNA-126 (miR-126) and its associated signaling pathways and specific mechanisms for the pathogenesis of PAH. MATERIALS AND METHODS The pulmonary artery endothelial cells (PAECs) were isolated and identified. The miR-126 mimic and miR-126 inhibitor were synthesized. LV-3-miR-126 mimic viral vector and LV-3-miR-126 inhibitor vector were established and infected into pulmonary artery endothelial cells. Expression of sprouty-related EVH1 domain-containing protein 1 (SPRED1), phosphoinositide-3-kinase regulatory subunit 2 (PIK3R2) and miR-126 were detected using Real-time PCR (RT-PCR). Cell apoptosis (Annexin V-PE/7-AAD) and proliferation (PKH26) were examined by using FACScan flow cytometry. Vascular endothelial growth factor (VEGF), transforming growth factor β1 (TGF-β1) and TGF-β3 levels were evaluated using enzyme-linked immunosorbent assay (ELISA) kits. RESULTS miR-126 inhibited the endothelial cells related to SPRED1 and PIK3R2 expression. Over-expression of miR-126 significantly inhibited the PAECs apoptosis compared to PAECs and blank LV-3 vector group (p<0.05). miR-126 significantly triggered the PAECs proliferation compared to PAECs and blank LV-3 vector group (p<0.05). In functional analysis, miR-126 mimic significantly increased the cells amounts of S phases compared to PAECs and blank LV-3 vector group (p<0.05). Pre-infection with miR-126 mimic significantly enhanced the levels of VEGF, TGF-β1, and TGF-β3 compared to PAECs and blank LV-3 vector group (p<0.05). CONCLUSIONS miR-126 could affect cell apoptosis, proliferation, cell cycle, and modulate VEGF/TGF-β levels.
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Yang ST, Shen C, Wang W, Wang YD, Zhao CY. [Pancreatoduodenectomy and non-alcoholic fatty liver disease]. ZHONGHUA GAN ZANG BING ZA ZHI = ZHONGHUA GANZANGBING ZAZHI = CHINESE JOURNAL OF HEPATOLOGY 2020; 28:540-544. [PMID: 32660189 DOI: 10.3760/cma.j.cn501113-20200426-00214] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Nonalcoholic fatty liver disease (NAFLD) is a clinicopathological syndrome with similar hepatic histological changes to alcoholic liver disease, but without a history of excessive alcohol intake. Obesity, hyperlipidemia, diabetes, hypertension and other metabolic disorders are closely related to its occurrence and development, and its core mechanism is insulin resistance. In addition, there are also non-metabolic-related factors for the occurrence of non-alcoholic fatty liver disease, such as pancreatoduodenectomy. Pancreatoduodenectomy is the standard procedure for the treatment of tumor around the head of pancreas and ampulla. Postoperative pancreatic malfunction induced by pancreatic exocrine function after pancreatoduodenectomy is associated with the occurrence and development of secondary non-alcoholic fatty liver disease.
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82
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Shen C, Christensen L, Bak S, Christensen N, Kragh K. Immunomodulatory effects of thymol and cinnamaldehyde in chicken cell lines. JOURNAL OF APPLIED ANIMAL NUTRITION 2020. [DOI: 10.3920/jaan2020.0001] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Thymol and cinnamaldehyde are phytogenic feed additives that have been developed to improve gut health, immunity and growth performance in poultry and swine. This study evaluated the immune modulating effects of a thymol and cinnamaldehyde blend (TCB) in the intestinal system of poultry in vitro, using two chicken cell lines, LMH (liver cell line) which has been used to mimic epithelial cell responses, and HD-11 (monocyte/macrophage-like). Cells with high viability (>95%) from established cell lines were cultured in the presence of TCB at concentrations ranging from 1 ng/ml to 100 ng/ml. The viability, transepithelial electrical resistance (TEER) and phagocytic capacity of co-cultured LMH cells, with or without stimulation with lipopolysaccharide (LPS), was subsequently evaluated. The expression of cytokines, chemokines and pattern recognition receptors by HD-11 monocytes/macrophages was measured by RT-PCR and by proteomic analysis. TCB was well tolerated by both cell lines (cell viability >90% after co-culture with TCB at 100 ng/ml for 48 h with or without LPS). Epithelial integrity of LMH cells (as assessed by TEER) was increased by TCB (10 ng/ml) after 4 h incubation, versus untreated controls, and phagocytic capacity of HD-11 cells was increased, in a dose-dependent manner (P<0.05). In HD-11 cells, TCB (10 ng/ml) downregulated the relative expression of pro-inflammatory cytokines interleukin (IL)-1β, IL-6, IL-8 and the transcription factor cyclooxygenase-2 and upregulated expression of anti-inflammatory IL-10, versus untreated controls (P<0.05). In summary, under the tested conditions, TCB enhanced the epithelial barrier integrity of poultry hepatocytes, increased phagocytic activity and production of anti-inflammatory cytokines by monocytes and macrophages. These results indicated how supplementing TCB in poultry diets can increase bird performance, by increasing in vivo cell membrane integrity (especially important in the gut) and assisting in immune responses, which can liberate energy for growth.
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83
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Shen C, Hsieh C, Kuo T, Cho C. Fructose substitution enhances derivation and self-renewal expansion of induced pluripotent stem cells. Cytotherapy 2020. [DOI: 10.1016/j.jcyt.2020.03.050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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84
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Weiss J, Vincent B, Deal A, Grilley-Olson J, Patel S, Hackman T, Blumberg J, Galloway T, Patel S, Zanation A, Shen C, Hayes D, Hilliard C, Mehra R, McKinnon K, Wang H, Weissler M, Bauman J, Sheth S, Chera B. Progression-free survival, overall survival and immunophenotyping outcomes for patients with stage III-IV head and neck cancer and cisplatin contraindication treated with definitive radiotherapy plus pembrolizumab. Int J Radiat Oncol Biol Phys 2020. [DOI: 10.1016/j.ijrobp.2020.02.003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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85
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Zhao W, Cheong LZ, Xu S, Cui W, Song S, Rourk CJ, Shen C. Direct investigation of current transport in cells by conductive atomic force microscopy. J Microsc 2019; 277:49-57. [PMID: 31883281 DOI: 10.1111/jmi.12861] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2019] [Revised: 12/06/2019] [Accepted: 12/25/2019] [Indexed: 01/23/2023]
Abstract
Currents play critical roles in neurons. Direct observation of current flows in cells at nanometre dimensions and picoampere current resolution is still a daunting task. In this study, we investigated the current flows in hippocampal neurons, PC12 cells and astrocytes in response to voltages applied to the cell membranes using conductive atomic force microscopy (CAFM). The spines in the hippocampal neurons play crucial roles in nerve signal transfer. When the applied voltage was greater than 7.2 V, PC12 cells even show metallic nanowire-like characteristics. Both the cell body and glial filaments of astrocytes yielded CAFM test results that reflect different electrical conductance. To our best knowledge, the electrical characteristics and current transport through components of cells (especially neurons) in response to an applied external voltage have been revealed for the first time at nanometre dimensions and picoampere current levels. We believe that such studies will pave new ways to study and model the electrical characteristics and physiological behaviours in cells and other biological samples.
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86
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Boltz T, Boney J, Shen C, Jaczynski J, Moritz J. The Effect of Standard Pelleting and More Thermally Aggressive Pelleting Utilizing a Hygieniser on Feed Manufacture and Reduction of Enterococcus faecium, a Salmonella Surrogate. J APPL POULTRY RES 2019. [DOI: 10.3382/japr/pfz088] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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87
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Shen C, Jameson K, Weiss J, Hackman T, Corum D, Akulian J, Dixon R, Pearson A, Frakes J, Said P, Miraoui H, Baskin-Bey E, Seiwert T. 126TiP a Phase I Study of NBTXR3 Activated by Radiotherapy for Patients with Advanced Cancers Treated with an Anti-PD-1 Therapy. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz451.034] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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88
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Lobmaier SM, Müller A, Zelgert C, Shen C, Su PC, Schmidt G, Haller B, Berg G, Fabre B, Weyrich J, Wu HT, Frasch MG, Antonelli MC. Fetal heart rate variability responsiveness to maternal stress, non-invasively detected from maternal transabdominal ECG. Arch Gynecol Obstet 2019; 301:405-414. [PMID: 31781889 DOI: 10.1007/s00404-019-05390-8] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2019] [Accepted: 11/14/2019] [Indexed: 10/25/2022]
Abstract
PURPOSE Prenatal stress (PS) during pregnancy affects in utero- and postnatal child brain-development. Key systems affected are the hypothalamic-pituitary-adrenal axis and the autonomic nervous system (ANS). Maternal- and fetal ANS activity can be gauged non-invasively from transabdominal electrocardiogram (taECG). We propose a novel approach to assess couplings between maternal (mHR) and fetal heart rate (fHR) as a new biomarker for PS based on bivariate phase-rectified signal averaging (BPRSA). We hypothesized that PS exerts lasting impact on fHR. METHODS Prospective case-control study matched for maternal age, parity, and gestational age during the third trimester using the Cohen Perceived Stress Scale (PSS-10) questionnaire with PSS-10 over or equal 19 classified as stress group (SG). Women with PSS-10 < 19 served as control group (CG). Fetal electrocardiograms were recorded by a taECG. Coupling between mHR and fHR was analyzed by BPRSA resulting in fetal stress index (FSI). Maternal hair cortisol, a memory of chronic stress exposure for 2-3 months, was measured at birth. RESULTS 538/1500 pregnant women returned the questionnaire, 55/538 (10.2%) mother-child pairs formed SG and were matched with 55/449 (12.2%) consecutive patients as CG. Maternal hair cortisol was 86.6 (48.0-169.2) versus 53.0 (34.4-105.9) pg/mg (p = 0.029). At 36 + 5 weeks, FSI was significantly higher in fetuses of stressed mothers when compared to controls [0.43 (0.18-0.85) versus 0.00 (- 0.49-0.18), p < 0.001]. CONCLUSION Prenatal maternal stress affects the coupling between maternal and fetal heart rate detectable non-invasively a month prior to birth. Lasting effects on neurodevelopment of affected offspring should be studied. TRIAL REGISTRATION Clinical trial registration: NCT03389178.
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Shen C, Dasari A, Chu Y, Halperin DM, Zhou S, Xu Y, Shih YT, Yao JC. Clinical, pathological, and demographic factors associated with development of recurrences after surgical resection in elderly patients with neuroendocrine tumors. Ann Oncol 2019; 30:1847. [PMID: 31407007 PMCID: PMC7360151 DOI: 10.1093/annonc/mdz220] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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90
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Guo G, Shen C, Liu Q, Zhang S, Wang C, Chen L, Xu Q, Wang Y, Huo W. Fermentation quality and in vitro digestibility of first and second cut alfalfa (Medicago sativa L.) silages harvested at three stages of maturity. Anim Feed Sci Technol 2019. [DOI: 10.1016/j.anifeedsci.2019.114274] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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91
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Sheth S, Bauman J, Deal A, Chera B, Shen C, Galloway T, Hackman T, Blumberg J, Yarbrough W, Weissler M, Hilliard C, Mehra R, Grilley-Olson J, Weiss J. Pembrolizumab and radiotherapy for locally advanced head and neck squamous cell carcinoma (LA-HNSCC) with contraindication to cisplatin therapy. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz252.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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92
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Liu H, Shen C, Jia X. A Treatment Planning System for Intensity-Modulated Small Animal Radiotherapy Realized Using an Existing Movable Rectangular Collimator. Int J Radiat Oncol Biol Phys 2019. [DOI: 10.1016/j.ijrobp.2019.06.742] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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93
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Shen C, Gonzalez Y, Chen L, Nguyen D, Jia X. Automatic Treatment Planning in a Human-like manner: Operating Treatment Planning Systems by a Deep Reinforcement Learning based Virtual Treatment Planner. Int J Radiat Oncol Biol Phys 2019. [DOI: 10.1016/j.ijrobp.2019.06.2538] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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94
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Gonzalez Y, Shen C, Jung H, Jia X. A Human Behavior-Driven Deep-Learning Approach for Automatic Sigmoid Segmentation. Int J Radiat Oncol Biol Phys 2019. [DOI: 10.1016/j.ijrobp.2019.06.571] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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95
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Wilson J, Chera B, Tan X, Shen C, Lumley C, Coniglio A, Weissler M, Yarbrough W, Hackman T, Blumberg J, Zanation A, Thorp B, Patel S. Local Regional Recurrence rates for pT1-2 N0 Oral Tongue Squamous Cell Carcinoma Treated with Surgery Alone at a High Volume Academic Multidisciplinary Head and Neck Oncology Program. Int J Radiat Oncol Biol Phys 2019. [DOI: 10.1016/j.ijrobp.2019.06.1602] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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96
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Ou X, Wang G, Shen C, He X, Hu C. Whole-Exome Sequencing Identified Multiple Germline Mutations of DNA Repair Pathway in Patients with and without a Family History of Nasopharyngeal Carcinoma. Int J Radiat Oncol Biol Phys 2019. [DOI: 10.1016/j.ijrobp.2019.06.1571] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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97
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Dicker A, Shen C, De Baere T, Hoffmann C, Welsh J, Rolland Y, Doger B, Den R, Trabulsi E, Lallas C, Seiwert T, Fernando N, Iannessi A, Pilleul F, Tetreau R, Rutkowski P, Papai Z, Brisse H. Hafnium Oxide Nanoparticles Activated By Radiotherapy: Potential for Local Treatment of a Wide Variety of Solid Tumors. Int J Radiat Oncol Biol Phys 2019. [DOI: 10.1016/j.ijrobp.2019.06.352] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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98
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Han J, Lu P, Zhou X, Zhao H, Shen C, JI B. High Serum Ferritin Impairs the Survival of Stage III-IV NSCLC Patients after 3D-CRT by Inhibition of Immune Cells. Int J Radiat Oncol Biol Phys 2019. [DOI: 10.1016/j.ijrobp.2019.06.1331] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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99
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Jung H, Shen C, Gonzalez Y, Jia X. Element-resolved Multi-energy Cone Beam CT Reconstruction to Enhance Detectability of Low-concentration Iodine Contrast Agent. Int J Radiat Oncol Biol Phys 2019. [DOI: 10.1016/j.ijrobp.2019.06.587] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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100
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Wang K, Tobillo R, Mavroidis P, Pappafotis R, Pearlstein K, Moon D, Mahbooba Z, Deal A, Holmes J, Sheets N, Kasibhatla M, Pacholke H, Royce T, Weiner A, Shen C, Zagar T, Marks L, Chera B. Prospective Assessment of Patient-Reported Dry Eye Syndrome after Whole Brain Radiation. Int J Radiat Oncol Biol Phys 2019. [DOI: 10.1016/j.ijrobp.2019.06.403] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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