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Hu S, Cheng Z, Li M, Gao S, Gao D, Kang P. [Correlation between insulin resistance and coronary collateral circulation in patients with chronic total coronary occlusion]. Nan Fang Yi Ke Da Xue Xue Bao 2024; 44:780-786. [PMID: 38708513 DOI: 10.12122/j.issn.1673-4254.2024.04.21] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/07/2024]
Abstract
OBJECTIVE To explore the impact of diabetes on collateral circulation (CC) development in patients with chronic total coronary occlusion (CTO) and the underlying regulatory mechanism. METHODS This study was conducted among 87 patients with coronary heart disease (CHD), who had CTO in at least one vessel as confirmed by coronary angiography. Among them 42 patients were found to have a low CC level (Cohen-Rentrop grades 0-1) and 45 had a high CC level (grades 2-3). In the 39 patients with comorbid diabetes mellitus and 48 non-diabetic patients, insulin resistance (IR) levels were compared between the subgroups with different CC levels. The steady-state mode evaluation method was employed for calculating the homeostatic model assessment for insulin resistance index (HOMA-IR) using a mathematical model. During the interventional procedures, collateral and peripheral blood samples were collected from 22 patients for comparison of the metabolites using non-targeted metabolomics analysis. RESULTS NT-proBNP levels and LVEF differed significantly between the patients with different CC levels (P<0.05). In non-diabetic patients, HOMA-IR was higher in low CC level group than in high CC level groups. Compared with the non-diabetic patients, the diabetic patients showed 63 upregulated and 48 downregulated metabolites in the collateral blood and 23 upregulated and 14 downregulated metabolites in the peripheral blood. The differential metabolites in the collateral blood were involved in aromatic compound degradation, fatty acid biosynthesis, and steroid degradation pathways; those in the peripheral blood were related with pentose phosphate metabolism, bacterial chemotaxis, hexanoyl-CoA degradation, glycerophospholipid metabolism, and lysine degradation pathways. CONCLUSION The non-diabetic patients with a low level of CC had significant insulin resistance. The degradation pathways of aromatic compounds, fatty acid biosynthesis, and steroid degradation are closely correlated with the development of CC.
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Affiliation(s)
- S Hu
- Department of Cardiology, First Affiliated Hospital of Bengbu Medical University, Bengbu 233004, China
| | - Z Cheng
- Department of Cardiology, First Affiliated Hospital of Bengbu Medical University, Bengbu 233004, China
| | - M Li
- Department of Cardiology, First Affiliated Hospital of Bengbu Medical University, Bengbu 233004, China
| | - S Gao
- Department of Cardiology, First Affiliated Hospital of Bengbu Medical University, Bengbu 233004, China
| | - D Gao
- Department of Cardiology, First Affiliated Hospital of Bengbu Medical University, Bengbu 233004, China
| | - P Kang
- Department of Cardiology, First Affiliated Hospital of Bengbu Medical University, Bengbu 233004, China
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Lu J, Huang Z, Zhuang B, Cheng Z, Guo J, Lou H. Development and evaluation of a robotic system for lumbar puncture and epidural steroid injection. Front Neurorobot 2023; 17:1253761. [PMID: 37881516 PMCID: PMC10595035 DOI: 10.3389/fnbot.2023.1253761] [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: 07/06/2023] [Accepted: 08/11/2023] [Indexed: 10/27/2023] Open
Abstract
Introduction Lumbar puncture is an important medical procedure for various diagnostics and therapies, but it can be hazardous due to individual variances in subcutaneous soft tissue, especially in the elderly and obese. Our research describes a novel robot-assisted puncture system that automatically controls and maintains the probe at the target tissue layer through a process of tissue recognition. Methods The system comprises a robotic system and a master computer. The robotic system is constructed based on a probe consisting of a pair of concentric electrodes. From the probe, impedance spectroscopy measures bio-impedance signals and transforms them into spectra that are communicated to the master computer. The master computer uses a Bayesian neural network to classify the bio-impedance spectra as corresponding to different soft tissues. By feeding the bio-impedance spectra of unknown tissues into the Bayesian neural network, we can determine their categories. Based on the recognition results, the master computer controls the motion of the robotic system. Results The proposed system is demonstrated on a realistic phantom made of ex vivo tissues to simulate the spinal environment. The findings indicate that the technology has the potential to increase the precision and security of lumbar punctures and associated procedures. Discussion In addition to lumbar puncture, the robotic system is suitable for related puncture operations such as discography, radiofrequency ablation, facet joint injection, and epidural steroid injection, as long as the required tissue recognition features are available. These operations can only be carried out once the puncture needle and additional instruments reach the target tissue layer, despite their ensuing processes being distinct.
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Affiliation(s)
- Jiaxin Lu
- School of Automation, Guangdong University of Technology, Guangzhou, China
| | - Zekai Huang
- School of Automation, Guangdong University of Technology, Guangzhou, China
| | - Baiyang Zhuang
- School of Automation, Guangdong University of Technology, Guangzhou, China
| | - Zhuoqi Cheng
- The Maersk Mc-Kinney Moller Institute, University of Southern Denmark, Odense, Denmark
| | - Jing Guo
- School of Automation, Guangdong University of Technology, Guangzhou, China
| | - Haifang Lou
- The First Affiliated Hospital of Zhejiang Chinese Medical University (Zhejiang Provincial Hospital of Chinese Medicine), Hangzhou, China
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Cheng Z, Liu H, Chen Y, Zhu SL, Yang SW, Chen J. Two-dimensional speckle tracking imaging to assess the hazards of left ventricular function and ventricular wall motion disorders in children with pre-excitation syndrome and the efficacy of radiofrequency ablation treatment. Eur Rev Med Pharmacol Sci 2023; 27:7882-7890. [PMID: 37750616 DOI: 10.26355/eurrev_202309_33545] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 09/27/2023]
Abstract
OBJECTIVE Our study aimed at analyzing the echocardiographic multi-indicator evaluation of the risk of Wolff-Parkinson-White syndrome (WPW) on the left ventricular function and ventricular wall motion disorders, as well as the effect of radiofrequency ablation treatment. PATIENTS AND METHODS The clinical data of 55 WPW patients treated with radiofrequency (RF) ablation at the Children's Hospital of Nanjing Medical University between January 2018 and December 2022 were retrospectively analyzed and included in the observation group, while other 50 healthy children were included in the control group during the same time. We analyzed the echocardiographic indices of the patients, assessed the effects of the disease on left ventricular myocardial function and ventricular wall motion disorders, and evaluated the effects of radiofrequency ablation treatment on the myocardium of the left ventricle. The echocardiographic parameters were analyzed to assess the effect of the disease on left ventricular myocardial function and ventricular wall dyskinesia. RESULTS Of the 55 patients with pre-excited syndrome, 20 had type A bypass and 35 had type B bypass. Ten patients had pre-excited dilated cardiomyopathy with significant enlargement of the left ventricular cavity, reduced left ventricular systolic function, and a significant impairment of ventricular wall motion; the other 5 patients had basal segmental septal motion incoordination. Compared to the control group, patients with left ventricular end-diastolic diameter (LVEDD) (42.9±5.0 mm vs. 39.2±3.0 mm), peak strain dispersion (PSD) (38.8±15.3 ms vs. 21.7±2.2 ms), maximum peak time difference (MPTD) (200.2±92.8 ms vs. 89.5±9.8 ms) and interventricular mechanical delay (IVMD) (36.2±13.7 ms vs. 21.2±2.1 ms) before RF ablation were increased. Left ventricular ejection fraction (LVEF) (57.1±9.1% vs. 65.9±2.6%), E/A (1.1±0.2 vs. 1.8±0.2) and global longitudinal strain (GLS) (-18.7±2.2% vs. -22.4±0.5%) decreased, with statistically significant differences (p<0.05). All 55 patients had a successful procedure, and all postoperative echocardiographic parameters were found to be improved, compared to the preoperative period. The results of the postoperative review after 3 months showed differences in E/A, PSD, MPTD, and IVMD compared to the healthy group, suggesting that left ventricular diastolic function and synchrony had not fully returned to normal. CONCLUSIONS Echocardiography can better evaluate myocardial motion and function in patients with Wolff-Parkinson-White syndrome and monitor the effect and progress of disease treatment, and has high clinical application value.
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Affiliation(s)
- Z Cheng
- Department of Ultrasound, Nanjing Gaochun People's Hospital, Nanjing, China.
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Guo J, He M, Li Z, Cai S, Xiong X, Cheng Z. Piezoresistivity modeling of soft tissue electrical-mechanical properties: A validation study. Proc Inst Mech Eng H 2023; 237:936-945. [PMID: 37387354 DOI: 10.1177/09544119231183545] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/01/2023]
Abstract
In general, the electrical property of soft tissues is sensitive to the force applied to their surface. To further study the relationship between the force and the electrical property of soft tissues, this paper attempts to investigate the effect of static and higher-order stresses on electrical properties. Overall, a practical experimental platform is designed to acquire the force information and the electrical property of soft tissues during a contact procedure, which is featured different compression stimuli, such as constant pressing force, constant pressing speed, and step-force compression, etc. Furthermore, the piezoresistive characteristic is innovatively introduced to model the mechanical-electrical properties of soft tissue. Finite Element Modeling (FEM) is adopted to fit the static piezoresistivity of the soft tissue. Finally, experimental studies were performed to demonstrate the effect of stress on the electrical properties and the feasibility of the proposed piezoresistive model to describe soft tissues' mechanical and electrical properties.
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Affiliation(s)
- Jing Guo
- School of Automation, Guangdong University of Technology, Guangzhou, Guangdong, China
| | - Min He
- School of Automation, Guangdong University of Technology, Guangzhou, Guangdong, China
| | - Zhichao Li
- Key Laboratory of Land Surface Pattern and Simulation, Institute of Geo-graphic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing, China
| | - Shuting Cai
- School of Integrated Circuits, Guangdong University of Technology, Guangzhou, Guangdong, China
| | - Xiaoming Xiong
- School of Integrated Circuits, Guangdong University of Technology, Guangzhou, Guangdong, China
| | - Zhuoqi Cheng
- Maersk Mc Kinney Moller Institute, University of Southern Denmark, Odense, Denmark
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Carobbio ALC, Cheng Z, Gianiorio T, Missale F, Africano S, Ascoli A, Fragale M, Filauro M, Marchi F, Guastini L, Mora F, Parrinello G, Canevari FRM, Peretti G, Mattos LS. Electric Bioimpedance Sensing for the Detection of Head and Neck Squamous Cell Carcinoma. Diagnostics (Basel) 2023; 13:2453. [PMID: 37510197 PMCID: PMC10377945 DOI: 10.3390/diagnostics13142453] [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: 05/14/2023] [Revised: 07/09/2023] [Accepted: 07/14/2023] [Indexed: 07/30/2023] Open
Abstract
The early detection of head and neck squamous cell carcinoma (HNSCC) is essential to improve patient prognosis and enable organ and function preservation treatments. The objective of this study is to assess the feasibility of using electrical bioimpedance (EBI) sensing technology to detect HNSCC tissue. A prospective study was carried out analyzing tissue from 46 patients undergoing surgery for HNSCC. The goal was the correct identification of pathologic tissue using a novel needle-based EBI sensing device and AI-based classifiers. Considering the data from the overall patient cohort, the system achieved accuracies between 0.67 and 0.93 when tested on tissues from the mucosa, skin, muscle, lymph node, and cartilage. Furthermore, when considering a patient-specific setting, the accuracy range increased to values between 0.82 and 0.95. This indicates that more reliable results may be achieved when considering a tissue-specific and patient-specific tissue assessment approach. Overall, this study shows that EBI sensing may be a reliable technology to distinguish pathologic from healthy tissue in the head and neck region. This observation supports the continuation of this research on the clinical use of EBI-based devices for early detection and margin assessment of HNSCC.
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Affiliation(s)
- Andrea Luigi Camillo Carobbio
- IRCCS Ospedale Policlinico San Martino, 16132 Genoa, Italy
- Department of Surgical Sciences and Integrated Diagnostics (DISC), University of Genoa, 16132 Genoa, Italy
- Section of Otorhinolaryngology-Head and Neck Surgery, Department of Neurosciences, University of Padua-"Azienda Ospedaliera di Padova", 35128 Padua, Italy
| | - Zhuoqi Cheng
- Maersk Mc-Kinney Moller Institute, University of Southern Denmark, 5230 Odense, Denmark
| | - Tomaso Gianiorio
- Department of Advanced Robotics, Istituto Italiano di Tecnologia, 16163 Genova, Italy
| | - Francesco Missale
- IRCCS Ospedale Policlinico San Martino, 16132 Genoa, Italy
- Department of Molecular and Translational Medicine, University of Brescia, 25125 Brescia, Italy
- Department of Head & Neck Oncology & Surgery, Antoni Van Leeuwenhoek, Nederlands Kanker Instituut, 1066 Amsterdam, The Netherlands
| | - Stefano Africano
- IRCCS Ospedale Policlinico San Martino, 16132 Genoa, Italy
- Department of Surgical Sciences and Integrated Diagnostics (DISC), University of Genoa, 16132 Genoa, Italy
| | - Alessandro Ascoli
- IRCCS Ospedale Policlinico San Martino, 16132 Genoa, Italy
- Department of Surgical Sciences and Integrated Diagnostics (DISC), University of Genoa, 16132 Genoa, Italy
| | - Marco Fragale
- IRCCS Ospedale Policlinico San Martino, 16132 Genoa, Italy
- Department of Surgical Sciences and Integrated Diagnostics (DISC), University of Genoa, 16132 Genoa, Italy
| | - Marta Filauro
- IRCCS Ospedale Policlinico San Martino, 16132 Genoa, Italy
- Department of Experimental Medicine (DIMES), University of Genoa, 16132 Genoa, Italy
| | - Filippo Marchi
- IRCCS Ospedale Policlinico San Martino, 16132 Genoa, Italy
- Department of Surgical Sciences and Integrated Diagnostics (DISC), University of Genoa, 16132 Genoa, Italy
| | - Luca Guastini
- IRCCS Ospedale Policlinico San Martino, 16132 Genoa, Italy
- Department of Surgical Sciences and Integrated Diagnostics (DISC), University of Genoa, 16132 Genoa, Italy
| | - Francesco Mora
- IRCCS Ospedale Policlinico San Martino, 16132 Genoa, Italy
- Department of Surgical Sciences and Integrated Diagnostics (DISC), University of Genoa, 16132 Genoa, Italy
| | | | - Frank Rikki Mauritz Canevari
- IRCCS Ospedale Policlinico San Martino, 16132 Genoa, Italy
- Department of Surgical Sciences and Integrated Diagnostics (DISC), University of Genoa, 16132 Genoa, Italy
| | - Giorgio Peretti
- IRCCS Ospedale Policlinico San Martino, 16132 Genoa, Italy
- Department of Surgical Sciences and Integrated Diagnostics (DISC), University of Genoa, 16132 Genoa, Italy
| | - Leonardo S Mattos
- Department of Advanced Robotics, Istituto Italiano di Tecnologia, 16163 Genova, Italy
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Cheng Z, Little MW, Ferris C, Takeda H, Ingvartsen KL, Crowe MA, Wathes DC. Influence of the concentrate inclusion level in a grass silage-based diet on hepatic transcriptomic profiles in Holstein-Friesian dairy cows in early lactation. J Dairy Sci 2023; 106:S0022-0302(23)00376-4. [PMID: 37474362 DOI: 10.3168/jds.2022-22860] [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: 10/04/2022] [Accepted: 02/15/2023] [Indexed: 07/22/2023]
Abstract
Excessive negative energy balance in early lactation is linked to an increased disease risk but may be mitigated by appropriate nutrition. The liver plays central roles in both metabolism and immunity. Hepatic transcriptomic profiles were compared between 3 dietary groups in each of 40 multiparous and 18 primiparous Holstein-Friesian cows offered isonitrogenous grass silage-based diets with different proportions of concentrates: (1) low concentrate (LC, 30% concentrate + 70% grass silage); (2) medium concentrate (MC, 50% concentrate + 50% grass silage), or (3) high concentrate (HC, 70% concentrate + 30% grass silage). Liver biopsies were taken from all cows at around 14 d in milk for RNA sequencing, and blood metabolites were measured. The sequencing data were analyzed separately for primiparous and multiparous cows using CLC Genomics Workbench V21 (Qiagen Digital Insights), focusing on comparisons between HC and LC groups. More differentially expressed genes (DEG) were seen between the primiparous cows receiving HC versus LC diets than for multiparous cows (597 vs. 497), with only 73 in common, indicating differential dietary responses. Multiparous cows receiving the HC diet had significantly higher circulating glucose and insulin-like growth factor-1 and lower urea than those receiving the LC diet. In response to HC, only the multiparous cows produced more milk. In these animals, bioinformatic analysis indicated expression changes in genes regulating fatty acid metabolism and biosynthesis (e.g., ACACA, ELOVL6, FADS2), increased cholesterol biosynthesis (e.g., CYP7A1, FDPS, HMGCR), downregulation in hepatic AA synthesis (e.g., GPT, GCLC, PSPH, SHMT2), and decreased expression of acute phase proteins (e.g., HP, LBP, SAA2). The primiparous cows on the HC diet also downregulated genes controlling AA metabolism and synthesis (e.g., CTH, GCLC, GOT1, ODC1, SHMT2) but showed higher expression of genes indicative of inflammation (e.g., CCDC80, IL1B, S100A8) and fibrosis (e.g., LOX, LUM, PLOD2). This potentially adverse response to a HC diet in physically immature animals warrants further investigation.
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Affiliation(s)
- Z Cheng
- Department of Pathobiology and Population Sciences, Royal Veterinary College, Hatfield, Hertfordshire AL9 7TA, United Kingdom
| | - M W Little
- Agri-Food and Biosciences Institute, Belfast BT9 5PX, United Kingdom
| | - C Ferris
- Agri-Food and Biosciences Institute, Belfast BT9 5PX, United Kingdom
| | - H Takeda
- Unit of Animal Genomics, GIGA Institute, University of Liège, B-4000 Liège, Belgium
| | - K L Ingvartsen
- Department of Animal and Veterinary Science, Aarhus University, DK-8830 Tjele, Denmark
| | - M A Crowe
- School of Veterinary Medicine, University College Dublin, Belfield, Dublin 4, Ireland.
| | - D C Wathes
- Department of Pathobiology and Population Sciences, Royal Veterinary College, Hatfield, Hertfordshire AL9 7TA, United Kingdom
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Ge F, Wan M, Cheng Z, Chen X, Chen Q, Qi Z. [Aloin inhibits gastric cancer cell proliferation and migration by suppressing the STAT3/HMGB1 signaling pathway]. Nan Fang Yi Ke Da Xue Xue Bao 2023; 43:702-709. [PMID: 37313810 DOI: 10.12122/j.issn.1673-4254.2023.05.04] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
OBJECTIVE To investigate the molecular mechanism underlying the inhibitory effect of aloin on the proliferation and migration of gastric cancer cells. METHODS Human gastric cancer MGC-803 cells treated with 100, 200 and 300 μg/mL aloin were examined for changes in cell viability, proliferation and migration abilities using CCK-8, EdU and Transwell assays. HMGB1 mRNA level in the cells was detected with RT-qPCR, and the protein expressions of HMGB1, cyclin B1, cyclin E1, E-cadherin, MMP-2, MMP-9 and p-STAT3 were determined using Western blotting. JASPAR database was used to predict the binding of STAT3 to HMGB1 promoter. In a BALB/c-Nu mouse model bearing subcutaneous MGC-803 cell xenograft, the effect of intraperitoneal injection of aloin (50 mg/kg) on tumor growth was observed. The protein expressions of HMGB1, cyclin B1, cyclin E1, E-cadherin, MMP-2, MMP-9 and p-STAT3 in the tumor tissue was examined using Western blotting, and tumor metastasis in the liver and lung tissues was detected using HE staining. RESULTS Treatment with aloin concentration-dependently inhibited the viability of MGC-803 cells (P < 0.05), significantly reduced the number of EdU-positive cells (P < 0.01), and attenuated the migration ability of the cells (P < 0.01). Aloin treatment dose-dependently down-regulated HMGB1 mRNA expression (P < 0.01), lowered the protein expressions of HMGB1, cyclin B1, cyclin E1, MMP-2, MMP-9 and p-STAT3, and up-regulated E-cadherin expression in MGC-803 cells. Prediction based on JASPAR database suggested that STAT3 could bind to the promoter region of HMGB1. In the tumor-bearing mice, aloin treatment significantly reduced the tumor size and weight (P < 0.01), lowered the protein expressions of cyclin B1, cyclin E1, MMP-2, MMP-9, HMGB1 and p-STAT3 and increased the expression of E-cadherin in the tumor tissue (P < 0.01). CONCLUSION Aloin attenuates the proliferation and migration of gastric cancer cells by inhibiting the STAT3/HMGB1 signaling pathway.
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Affiliation(s)
- F Ge
- Department of Biochemistry and Molecular Biology, School of Basic Medicine, Wannan Medical College, Wuhu 241002, China
- Anhui Provincial Key Laboratory of Active Biological Macro-molecules, Wannan Medical College, Wuhu 241002, China
- School of Pharmacy, Wannan Medical College, Wuhu 241002, China
| | - M Wan
- Department of Biochemistry and Molecular Biology, School of Basic Medicine, Wannan Medical College, Wuhu 241002, China
- Anhui Provincial Key Laboratory of Active Biological Macro-molecules, Wannan Medical College, Wuhu 241002, China
- School of Pharmacy, Wannan Medical College, Wuhu 241002, China
| | - Z Cheng
- Department of Biochemistry and Molecular Biology, School of Basic Medicine, Wannan Medical College, Wuhu 241002, China
- Anhui Provincial Key Laboratory of Active Biological Macro-molecules, Wannan Medical College, Wuhu 241002, China
- School of Clinical Medicine, Wannan Medical College, Wuhu 241002, China
| | - X Chen
- Department of Biochemistry and Molecular Biology, School of Basic Medicine, Wannan Medical College, Wuhu 241002, China
- Anhui Provincial Key Laboratory of Active Biological Macro-molecules, Wannan Medical College, Wuhu 241002, China
| | - Q Chen
- Department of Biochemistry and Molecular Biology, School of Basic Medicine, Wannan Medical College, Wuhu 241002, China
- Anhui Provincial Key Laboratory of Active Biological Macro-molecules, Wannan Medical College, Wuhu 241002, China
| | - Z Qi
- Department of Biochemistry and Molecular Biology, School of Basic Medicine, Wannan Medical College, Wuhu 241002, China
- Anhui Provincial Key Laboratory of Active Biological Macro-molecules, Wannan Medical College, Wuhu 241002, China
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Xie X, Lu W, Qiu J, Cheng Z. Metabolic and Textural Changes in the Brain of Lung Cancer Patients: A Total-Body PET/CT Study. Int J Radiat Oncol Biol Phys 2022. [DOI: 10.1016/j.ijrobp.2022.07.1492] [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: 11/29/2022]
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Zhu S, Cheng Z, Wu Z, Wang J. P04.01.B High impact of ITGB1 on Pi3K/AKT expression in medulloblastoma. Neuro Oncol 2022. [DOI: 10.1093/neuonc/noac174.116] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Medulloblastoma, an embryonal tumor of the cerebellum, is one of the most frequent malignant brain tumors. Despite the increasing use of genetic variation in treatment stratification, high-risk patients characterized by light meningeal spread, TP53 mutations, or MYC amplification still have poor survival. Phosphatidylinositol-3-kinase (PI3K)/AKT/mammalian target of rapamycin (mTOR) signaling is one of the most important intracellular pathways, which can be considered as a master regulator for cancer. In tissue samples obtained from medulloblastoma patients, the significant upregulation of PI3K/AKT was associated with a lifting expression level of integrin β1(ITGB1). To understand the underlying mechanism, we investigated the effect of ITGB1 on the PI3K/AKT pathway in medulloblastoma cell lines. Transfection of this ITGB1 reduced proliferation and invasion of several medulloblastoma cell lines and inhibit epithelial-mesenchymal transition. In addition, knocking down ITGB1 expression can significantly inhibit the activation of PI3K/AKT signaling pathway. In conclusion, ITGB1 may selectively activation the pathophysiological effect of aberrant PI3K/AKT expression and serve as a targeted approach for medulloblastoma therapy.
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Affiliation(s)
- S Zhu
- State Key Laboratory of Oncology in South China, Collaborative Innovation , Guangzhou , China
| | - Z Cheng
- State Key Laboratory of Oncology in South China, Collaborative Innovation , Guangzhou , China
| | - Z Wu
- State Key Laboratory of Oncology in South China, Collaborative Innovation , Guangzhou , China
| | - J Wang
- State Key Laboratory of Oncology in South China, Collaborative Innovation , Guangzhou , China
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Dai Y, Cheng Z, Faas M, Huo X. P10-01 Targeted lipidomics reveals polycyclic aromatic hydrocarbon exposure relates to oxylipin profile disorders and inflammatory response in children. Toxicol Lett 2022. [DOI: 10.1016/j.toxlet.2022.07.432] [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: 10/14/2022]
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Cheng Z, Savarimuthu TR. Monopolar, bipolar, tripolar, and tetrapolar configurations in robot assisted electrical impedance scanning. Biomed Phys Eng Express 2022; 8. [PMID: 35728560 DOI: 10.1088/2057-1976/ac7adb] [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: 04/09/2022] [Accepted: 06/21/2022] [Indexed: 11/11/2022]
Abstract
OBJECTIVE Tissue recognition is a critical process during a Robot-assisted minimally invasive surgery (RMIS) and it relies on the involvement of advanced sensing technology. APPROACH In this paper, the concept of Robot Assisted Electrical Impedance Sensing (RAEIS) is utilized and further developed aiming to sense the electrical bioimpedance of target tissue directly based on the existing robotic instruments and control strategy. Specifically, we present a new sensing configuration called pseudo-tetrapolar method. With the help of robotic control, we can achieve a similar configuration as traditional tetrapolar, and with better accuracy. MAIN RESULTS Five configurations including monopolar, bipolar, tripolar, tetrapolar and pseudo-tetrapolar are analyzed and compared through simulation experiments. Advantages and disadvantages of each configuration are thus discussed. SIGNIFICANCE This study investigates the measurement of tissue electrical property directly based on the existing robotic surgical instruments. Specifically, different sensing configurations can be realized through different connection and control strategies, making them suitable for different application scenarios.
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Affiliation(s)
- Zhuoqi Cheng
- MMMI, SDU, Campusvej 55, SDU, Odense, 5230, DENMARK
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Tian J, He F, Cheng Z, Zhang X, Yang C, Gao B, Xu Z, Tian Y. Aerobic Denitrification of Pseudomonas stutzeri yjy-10 and Genomic Analisis of This Process. APPL BIOCHEM MICRO+ 2022. [DOI: 10.1134/s0003683822030139] [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: 11/23/2022]
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Cheng Z, Tang X, Zhang H, Sun L. AB0096 MECHANISM OF SHIP IN NEUTROPHIL EXTRACELLULAR TRAP IN RHEUMATOID ARTHRITIS. Ann Rheum Dis 2022. [DOI: 10.1136/annrheumdis-2022-eular.4764] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
BackgroundRheumatoid arthritis(RA) is a common autoimmune disease with unknown etiology. RA is characterized by the destruction of cartilage and bone. Neutrophils are abundant in synovial fluid of RA and are closely related to the development of RA 1。In recent years, it has been reported that neutrophils can release neutrophil extracellular traps(NET), which can not only kill different bacteria and viruses, but also closely related to autoimmune diseases 1,2 Studies have shown that NET is involved in the development of RA3. The Src homologous 2 domain containing inositol 5-phosphatase 1 (SHIP-1) controls the level of intracellular inositol 3-phosphate kinase product phosphatidylinositol-3,4,5-triphosphate. SHIP can be used as a positive or negative regulatory signal in different stimuli.And So has studied that the inflammation of CIA mouse model is reduced after SHIP is inhibited.ObjectivesTherefore, we want to study whether SHIP is involved in the formation of rheumatoid arthritis NET and its relationship with NET.MethodsWe isolated neutrophils from RA peripheral blood, stimulated NETosis with PMA, and detected the changes of NETosis in the group with SHIP inhibitor by flow cytometry and immunofluorescence. In addition, DBA mice were divided into three groups: HC, CIA and SHIP inhibitor intraperitoneal injection group. The degree of paw swelling and HE staining were used to detect the inflammation of mice, and the release of NET in CIA model was detected by flow cytometry.ResultsIn the DBA model, the generation of neutrophil extracellular traps decreased significantly in the intraperitoneal injection group of SHIP inhibitor. SHIP inhibitor can significantly inhibit the formation of NET in RA patients. In addition, we also found TNF- α Monoclonal antibodies reduced NETosis in RA patients, while SHIP inhibitors inhibited the generation of NET in RA patients. The results suggest that SHIP may inhibit the inflammatory factor TNF- α. In turn, it is involved in the release of NET in rheumatoid arthritisConclusionSHIP participates in the formation of NET in rheumatoid arthritis and affects the production of NET through pro-inflammatory cytokines. Therefore, SHIP is expected to become a new target for the treatment of RA.References[1]Skopelja-Gardner, S.; Jones, J. D.; Rigby, W. F. C. “NETtling” the Host: Breaking of Tolerance in Chronic Inflammation and Chronic Infection. J. Autoimmun.2018, 88, 1–10. https://doi.org/10.1016/j.jaut.2017.10.008.[2]Lee, K. H.; Kronbichler, A.; Park, D. D.-Y.; Park, Y.; Moon, H.; Kim, H.; Choi, J. H.; Choi, Y.; Shim, S.; Lyu, I. S.; Yun, B. H.; Han, Y.; Lee, D.; Lee, S. Y.; Yoo, B. H.; Lee, K. H.; Kim, T. L.; Kim, H.; Shim, J. S.; Nam, W.; So, H.; Choi, S.; Lee, S.; Shin, J. I. Neutrophil Extracellular Traps (NETs) in Autoimmune Diseases: A Comprehensive Review. Autoimmun. Rev.2017, 16 (11), 1160–1173. https://doi.org/10.1016/j.autrev.2017.09.012.[3]Khandpur, R.; Carmona-Rivera, C.; Vivekanandan-Giri, A.; Gizinski, A.; Yalavarthi, S.; Knight, J. S.; Friday, S.; Li, S.; Patel, R. M.; Subramanian, V.; Thompson, P.; Chen, P.; Fox, D. A.; Pennathur, S.; Kaplan, M. J. NETs Are a Source of Citrullinated Autoantigens and Stimulate Inflammatory Responses in Rheumatoid Arthritis. Sci. Transl. Med.2013, 5 (178), 178ra40-178ra40. https://doi.org/10.1126/scitranslmed.3005580.Disclosure of InterestsNone declared
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Piccinelli M, Cheng Z, Dall'Alba D, Schmidt MK, Savarimuthu TR, Fiorini P. 3D Vision Based Robot Assisted Electrical Impedance Scanning for Soft Tissue Conductivity Sensing. IEEE Robot Autom Lett 2022. [DOI: 10.1109/lra.2022.3150481] [Citation(s) in RCA: 1] [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: 11/05/2022]
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15
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Peng X, Yao Y, Jiang X, Zhou X, Li C, Cheng Z. Linfoma difuso de células B grandes detectado mediante PET/TC Al 18F-NOTA-FAPI-04. Rev Esp Med Nucl Imagen Mol 2022. [DOI: 10.1016/j.remn.2021.03.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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16
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Cheng Z, Savarimuthu TR. A disposable force regulation mechanism for throat swab robot. Annu Int Conf IEEE Eng Med Biol Soc 2021; 2021:4792-4795. [PMID: 34892282 DOI: 10.1109/embc46164.2021.9629613] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Robots can protect healthcare workers from being infected by the COVID-19 and play a role in throat swab sampling operation. A critical requirement in this process is to maintain a constant force on the tissue for ensuring a safe and good sampling. In this study, we present the design of a disposable mechanism with two non-linear springs to achieve a 0.6 N constant force within a 20 mm displacement. The nonlinear spring is designed through optimization based on Finite Element Simulation and Genetic Algorithm. Prototype of the mechanism is made and tested. The experimental results show that the mechanism can provide 0.67±0.04 N and 0.57±0.02 N during its compression and return process. The proposed design can be extended to different scales and used in a variety of scenario where safe interacting with human is required.
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Cheng Z, Dall'Alba D, Fiorini P, Savarimuthu TR. Robot-Assisted Electrical Impedance Scanning system for 2D Electrical Impedance Tomography tissue inspection. Annu Int Conf IEEE Eng Med Biol Soc 2021; 2021:3729-3733. [PMID: 34892047 DOI: 10.1109/embc46164.2021.9629590] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
The electrical impedance tomography (EIT) technology is an important medical imaging approach to show the electrical characteristics and the homogeneity of a tissue region noninvasively. Recently, this technology has been introduced to the Robot Assisted Minimally Invasive Surgery (RAMIS) for assisting the detection of surgical margin with relevant clinical benefits. Nevertheless, most EIT technologies are based on a fixed multiple-electrodes probe which limits the sensing flexibility and capability significantly. In this study, we present a method for acquiring the EIT measurements during a RAMIS procedure using two already existing robotic forceps as electrodes. The robot controls the forceps tips to a series of predefined positions for injecting excitation current and measuring electric potentials. Given the relative positions of electrodes and the measured electric potentials, the spatial distribution of electrical conductivity in a section view can be reconstructed. Realistic experiments are designed and conducted to simulate two tasks: subsurface abnormal tissue detection and surgical margin localization. According to the reconstructed images, the system is demonstrated to display the location of the abnormal tissue and the contrast of the tissues' conductivity with an accuracy suitable for clinical applications.
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Bromley BP, Cheng Z, Nava Dominguez A, Colton AV. Sensitivity Studies to Assess the Impact of Geometry and Operating/Boundary Condition Perturbations on Thermal-Hydraulic Behavior of Advanced Fuel Channels in Pressure Tube Heavy Water Reactors with Uranium and Thorium-Based Fuels. NUCL TECHNOL 2021. [DOI: 10.1080/00295450.2020.1827658] [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: 10/22/2022]
Affiliation(s)
- B. P. Bromley
- Canadian Nuclear Laboratories, 286 Plant Road, Chalk River, Ontario K0J 1J0, Canada
| | - Z. Cheng
- Canadian Nuclear Laboratories, 286 Plant Road, Chalk River, Ontario K0J 1J0, Canada
| | - A. Nava Dominguez
- Canadian Nuclear Laboratories, 286 Plant Road, Chalk River, Ontario K0J 1J0, Canada
| | - A. V. Colton
- Canadian Nuclear Laboratories, 286 Plant Road, Chalk River, Ontario K0J 1J0, Canada
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Liu T, Olajide T, Wang W, Cheng Z, Cheng Q, Weng X. Quality detection of tea oil by 19F NMR and 1H NMR. grasasaceites 2021. [DOI: 10.3989/gya.0662201] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
The nuclear magnetic resonance (NMR) technique was applied to monitor the quality of tea oil herein. The adulteration of virgin tea oil was monitored by 19F NMR and 1H NMR. The 19F NMR technique was used as a new method to detect the changes in quality and hydroperoxide value of tea oil. The research demonstrates that 19F NMR and 1H NMR can quickly detect adulteration in tea oil. High temperature caused a decrease in the ratio D and increase in the total diglyceride content. Some new peaks belonging to the derivatives of hydroperoxides appeared at δ-108.21 and δ-109.05 ppm on the 19F NMR spectrum when the oil was autoxidized and became larger when the hydroperoxide value increased. These results have great significance in monitoring the moisture content, freshness and oxidation status of oils and in detecting adulteration in high priced edible oils by mixing with cheap oils.
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Wang Z, Yang F, Ma H, Cheng Z, Zhang W, Xiong K, Shen T, Yang S. Bifocal 532/1064 nm alternately illuminated photoacoustic microscopy for capturing deep vascular morphology in human skin. J Eur Acad Dermatol Venereol 2021; 36:51-59. [PMID: 34547120 DOI: 10.1111/jdv.17677] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2021] [Accepted: 08/26/2021] [Indexed: 12/26/2022]
Abstract
BACKGROUND As a promising technology, photoacoustic microscopy (PAM) plays a critical role in diagnosis and assessment of dermatological conditions by providing subtle vascular networks non-invasively. However, the established PAMs are insufficient for clinical dermatology when faced with complex structures of human skin instead of animal models owing to high melanin content and superimposed vasculature for Asians, which cannot balance the spatial resolution and the imaging depth. OBJECTIVES To evaluate the ability of bifocal 532/1064-nm alternately illuminated photoacoustic microscopy (BF-PAM) to non-invasively reveal the morphological structure of human skin for improving the diagnosis and therapeutic efficacy of skin diseases. METHODS A BF-PAM was developed to capture biopsy-like information of human skin from epidermis to hypodermis. The optical foci of the two excitation beams are staggered in the axial direction to form an extended depth-of-field, which can maintain the lateral resolution and the contrast of PA image. RESULTS The imaging capability of the BF-PAM was demonstrated by depicting the vascular morphology of multilayered skin with imaging depth of ˜3 mm. Furtherly, vascular malformations in port-wine stains skin were quantitatively assessed without the need for any contrast agent, and the distribution, depth and diameter of the ectatic vessels can determine an optimal treatment protocol for port-wine stains lesions. CONCLUSIONS The quantitative vascular morphology in the dermis can be used to accurately assess vascular characteristics, in which case it enables clinicians to determine optimum treatment parameters in individual patients. As a non-invasive imaging technique, BF-PAM holds great potential to provide objective assessment to enhance the therapeutic efficacy. ETHICAL STATEMENT The study was conducted in accordance with the Declaration of Helsinki (as revised in 2013). The study was approved by the Chinese Ethics Committee of Registering Clinical Trials (ChiECRCT20200184) and registered with Chinese Clinical Trial Registry (ChiCTR2000034400). Before skin imaging, written informed consent was taken from all individual participants.
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Affiliation(s)
- Z Wang
- MOE Key Laboratory of Laser Life Science and Institute of Laser Life Science, College of Biophotonics, South China Normal University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Laser Life Science, College of Biophotonics, South China Normal University, Guangzhou, China
| | - F Yang
- MOE Key Laboratory of Laser Life Science and Institute of Laser Life Science, College of Biophotonics, South China Normal University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Laser Life Science, College of Biophotonics, South China Normal University, Guangzhou, China
| | - H Ma
- MOE Key Laboratory of Laser Life Science and Institute of Laser Life Science, College of Biophotonics, South China Normal University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Laser Life Science, College of Biophotonics, South China Normal University, Guangzhou, China
| | - Z Cheng
- MOE Key Laboratory of Laser Life Science and Institute of Laser Life Science, College of Biophotonics, South China Normal University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Laser Life Science, College of Biophotonics, South China Normal University, Guangzhou, China
| | - W Zhang
- MOE Key Laboratory of Laser Life Science and Institute of Laser Life Science, College of Biophotonics, South China Normal University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Laser Life Science, College of Biophotonics, South China Normal University, Guangzhou, China
| | - K Xiong
- MOE Key Laboratory of Laser Life Science and Institute of Laser Life Science, College of Biophotonics, South China Normal University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Laser Life Science, College of Biophotonics, South China Normal University, Guangzhou, China
| | - T Shen
- Department of Plastic and Aesthetic Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - S Yang
- MOE Key Laboratory of Laser Life Science and Institute of Laser Life Science, College of Biophotonics, South China Normal University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Laser Life Science, College of Biophotonics, South China Normal University, Guangzhou, China
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21
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Amin B, Atif MJ, Wang X, Meng H, Ghani MI, Ali M, Ding Y, Li X, Cheng Z. Effect of low temperature and high humidity stress on physiology of cucumber at different leaf stages. Plant Biol (Stuttg) 2021; 23:785-796. [PMID: 33900017 DOI: 10.1111/plb.13276] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/2021] [Accepted: 04/18/2021] [Indexed: 06/12/2023]
Abstract
Low temperature (LT) and high humidity (HH) are important environmental factors in greenhouses and plastic tunnels during the cold season, as they hamper plant growth and development. Here, we studied the effect of LT (day/night: 9/5 °C, 25/18 °C as control) and HH (95%, 80% as control) on young cucumber plants at the 2, 4 or 6 leaf stages. LT+HH stress resulted in a decline in shoot, root and total fresh and dry weights, and decreased Pn , gs , Tr , Fv /Fm , qP, ETR and chlorophyll, and increased MDA, H2 O2 , O2 - , NPQ and Ci as compared to the control at the 2 leaf stage. SOD, POD, CAT, APX and GR were upregulated under LT+HH stress as compared to the control at the 6 leaf stage. ABA and JA increased under LT+HH stress as compared to the control at the 6 leaf stage, while IAA and GA decreased under LT+HH stress as compared to the control at the 2 leaf stage. Our results show that LT+HH stress affects young cucumber plant photosynthetic efficiency, PSII activity, antioxidant defence system, ROS and hormone profile. Plants at the 6 leaf stage were more tolerant than at the 2 and 4 leaf stages under stress conditions.
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Affiliation(s)
- B Amin
- College of Horticulture, Northwest A&F University, Yangling, 71210, China
| | - M J Atif
- College of Horticulture, Northwest A&F University, Yangling, 71210, China
- Horticultural Research Institute, National Agricultural Research Centre, Islamabad, 44000, Pakistan
| | - X Wang
- College of Horticulture, Northwest A&F University, Yangling, 71210, China
| | - H Meng
- College of Horticulture, Northwest A&F University, Yangling, 71210, China
| | - M I Ghani
- College of Horticulture, Northwest A&F University, Yangling, 71210, China
| | - M Ali
- College of Horticulture, Northwest A&F University, Yangling, 71210, China
| | - Y Ding
- College of Horticulture, Northwest A&F University, Yangling, 71210, China
| | - X Li
- Tianjin Kerun Cucumber Research Institute, Tianjin, 300192, China
| | - Z Cheng
- College of Horticulture, Northwest A&F University, Yangling, 71210, China
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Cheng Z, Lindberg Schwaner K, Dall'Alba D, Fiorini P, Savarimuthu TR. An electrical bioimpedance scanning system for subsurface tissue detection in Robot Assisted Minimally Invasive Surgery. IEEE Trans Biomed Eng 2021; 69:209-219. [PMID: 34156935 DOI: 10.1109/tbme.2021.3091326] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
In Robot Assisted Minimally Invasive Surgery, discriminating critical subsurface structures is essential to make the surgical procedure safer and more efficient. In this paper, a novel robot assisted electrical bio-impedance scanning (RAEIS) system is developed and validated using a series of experiments. The proposed system constructs a tri-polar sensing configuration for tissue homogeneity inspection. Specifically, two robotic forceps are used as electrodes for applying electric current and measuring reciprocal voltages relative to a ground electrode which is placed distal from the measuring site. Compared to the other existing electrical bioimpedance sensing technology, the proposed system is able to use miniaturized electrodes to measure a site flexibly with enhanced subsurfacial detection capability. In this paper, we present the concept, the modeling of the sensing method, the hardware design, and the system calibration. Subsequently, a series of experiments are conducted for system evaluation including finite element simulation, saline solution bath experiments and experiments based on ex vivo animal tissues. The experimental results demonstrate that the proposed system can measure the resistivity of the material with high accuracy, and detect a subsurface non-homogeneous object with 100% success rate. The proposed parameters estimation algorithm is able to approximate the resistivity and the depth of the subsurface object effectively with one fast scanning.
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Cheng Z, Wylie A, Ferris C, Ingvartsen KL, Wathes DC. Effect of diet and nonesterified fatty acid levels on global transcriptomic profiles in circulating peripheral blood mononuclear cells in early lactation dairy cows. J Dairy Sci 2021; 104:10059-10075. [PMID: 34147225 DOI: 10.3168/jds.2021-20136] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2021] [Accepted: 04/30/2021] [Indexed: 12/20/2022]
Abstract
After calving, lipid mobilization caused by increased nutrient demands for lactation leads to elevated circulating concentrations of nonesterified fatty acids (NEFA). Excessive NEFA levels have previously been identified as a major risk factor for postpartum immunosuppression. The aim of this study was to investigate changes in global transcriptomic gene expression of peripheral blood mononuclear cells (PBMC) in dairy cows offered different early lactation diets (high concentrate, n = 7; medium, n = 8; or low, n = 9) and with differing circulating levels of NEFA. Cows were classified as having NEFA concentrations of either <500 µM (low, n = 6), 500 to 750 µM (medium, n = 8) or >750 µM (high, n = 10) at 14 d in milk. Plasma urea concentrations were greater for cows on the high concentrate diet but β-hydroxybutyrate and glucose concentrations did not differ significantly between either dietary treatments or NEFA groups. Cows with high NEFA weighed more at drying off and suffered greater body condition score loss after calving. The PBMC were isolated at 14 d in milk, and RNA was extracted for RNA sequencing. Differential gene expression was analyzed with DESeq2 with q-value for false discovery rate control followed by Gene Ontology Enrichment. Although there were no differentially expressed genes associated with lactation diet, 304 differentially expressed genes were identified between cows with high and low circulating NEFA, with 118 upregulated and 186 downregulated. Gene Ontology enrichment analysis demonstrated that biological adhesion and immune system process were foremost among various PBMC functions which were altered relating to body defenses and immunity. High NEFA concentrations were associated with inhibited cellular adhesion function by downregulating 20 out of 26 genes (by up to 17-fold) related to this process. Medium NEFA concentrations altered a similar set of functions as high NEFA, but with smaller enrichment scores. Localization and immune system process were most significant, with biological adhesion ranking only eleventh. Our results demonstrated that increased circulating NEFA concentrations, but not diet, were associated with immune system processes in PBMC in early lactation cows. Leukocyte cell-to-cell adhesion was inhibited when the NEFA concentration exceeded 750 µM, which would reduce the efficiency of diapedesis and so contribute to decreased body defense mechanisms and predispose animals to infection.
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Affiliation(s)
- Z Cheng
- Royal Veterinary College, Hatfield, Herts AL9 7TA, United Kingdom.
| | - A Wylie
- Agri-Food and Biosciences Institute, Newforge Lane, Upper Malone Road, Belfast BT9 5PX, United Kingdom
| | - C Ferris
- Agri-Food and Biosciences Institute, Newforge Lane, Upper Malone Road, Belfast BT9 5PX, United Kingdom
| | - K L Ingvartsen
- Department of Animal Science, Aarhus University, DK-8830 Tjele, Denmark
| | - D C Wathes
- Royal Veterinary College, Hatfield, Herts AL9 7TA, United Kingdom
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Cheng Z, Wei R, Cao N, Li Z, Li M, Liu M, Zhu L, Xia C. Identification of hepatosensitive region and their neural connections in the hippocampus of rats. Folia Morphol (Warsz) 2021; 81:261-270. [PMID: 33634834 DOI: 10.5603/fm.a2021.0020] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2020] [Accepted: 02/01/2021] [Indexed: 11/25/2022]
Abstract
BACKGROUND Visceral function localization of the brain is very complex. For many years, people have been actively exploring the neural mechanism regulating visceral and substance metabolism, clarifying the complex relationship between the brain and peripheral nervous system related to the regulation of visceral activity, and analyzing its complex neural pathways. The brain is the advanced center of visceral function regulation. As an advanced center for substance metabolism and visceral regulation, the hippocampus is crucial for regulating visceral function. The liver is the core organ of material metabolism, and its afferent signals are mainly projected to the Nucleus of the solitary tract(NTS) through vagus nerve, and then they are projected to the hypothalamus and limbic system. MATERIALS AND METHODS We placed a stereotaxic instrument on the head of each rat and performed craniotomy to open a window above the left hippocampus. We used gold-plated tungsten electrodes to monitor hippocampal neuronal discharges. Grounding was achieved using screws and silver wire. We electrically stimulated the liver branch of the vagus nerve and observed changes in hippocampal neuron discharges using a biological method; in this way, we identified hepatosensitive hippocampal region. We injected FluoroGold into this region and related brain areas. After 3 days, the rats were sacrificed and perfused; the hippocampi were fixed, dehydated, frozen, sectioned, and subjected to fluorescence microscopy. RESULTS Nerve discharge frequency and amplitude significantly increased in the hippocampal CA3 region (AP: -4.9, ML: -5.1, DV: -5.0 mm). After FluoroGold was injected into the left hepatosensitive region in the hippocampus, labeled cells were found in the contralateral hippocampus, ipsilateral piriform cortex (PC), locus coeruleus (LC) and bilateral lateral hypothalamus (LHA); fluorescence in the ipsilateral hypothalamus was stronger than that of the contralateral hypothalamus. FluoroGold was injected into the LHA, PC, and LC; no labeled cells were found in the hippocampal CA3 region or in the control group. CONCLUSIONS The hippocampal CA3 area of rats may contain a hepatosensitive region that plays important roles in the regulation of liver and other organ function. These region may receive input from the LHA, PC, and LC.
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Affiliation(s)
- Z Cheng
- Department of Human Anatomy, Basic Medical College of Guilin Medical University, China.,Department of Anatomy, Basic Medical Department of Henan Vocational College of Nursing, China
| | - R Wei
- College of Biotechnology, Guilin Medical University, China
| | - N Cao
- Department of Human Anatomy, Basic Medical College of Guilin Medical University, China
| | - Z Li
- Department of Human Anatomy, Basic Medical College of Guilin Medical University, China
| | - M Li
- Department of Human Anatomy, Basic Medical College of Guilin Medical University, China
| | - M Liu
- Affiliated Hospital of Guilin Medical University, China
| | - L Zhu
- Affiliated Hospital of Guilin Medical University, China
| | - C Xia
- Department of Human Anatomy, Basic Medical College of Guilin Medical University, China.
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Jacobs J, Li Q, Cheng Z, O'Brien K, Thompson D, Uitto J, Sabbagh Y. 167 INZ-701 prevents ectopic mineralization in an Abcc6 mouse model of pseudoxanthoma elasticum. J Invest Dermatol 2021. [DOI: 10.1016/j.jid.2021.02.187] [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: 11/26/2022]
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Wathes DC, Cheng Z, Salavati M, Buggiotti L, Takeda H, Tang L, Becker F, Ingvartsen KL, Ferris C, Hostens M, Crowe MA. Corrigendum to "Relationships between metabolic profiles and gene expression in liver and leukocytes of dairy cows in early lactation" (J. Dairy Sci. 104:3596-3616). J Dairy Sci 2021; 104:6327. [PMID: 33888222 DOI: 10.3168/jds.2021-104-5-6327] [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: 11/19/2022]
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Zhang M, Yao Y, Zuo Z, Cheng Z. Discordant lymphoma consisting of NK/T-cell lymphoma and Hodgkin's lymphoma seen on FDG PET. Rev Esp Med Nucl Imagen Mol 2021; 40:184-185. [PMID: 33509690 DOI: 10.1016/j.remn.2020.03.016] [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] [Received: 12/14/2019] [Revised: 03/04/2020] [Accepted: 03/20/2020] [Indexed: 11/28/2022]
Affiliation(s)
- M Zhang
- Department of Breast Surgery, Sichuan Cancer Hospital & Institute, Sichuan Cancer Center, School of Medicine, University of Electronic Science and Technology of China, Chengdu, China
| | - Y Yao
- PET/CT Center, Department of Nuclear Medicine, Sichuan Cancer Hospital & Institute, Sichuan Cancer Center, School of Medicine, University of Electronic Science and Technology of China, Chengdu, China
| | - Z Zuo
- Department of Pathology, Sichuan Cancer Hospital & Institute, Sichuan Cancer Center, School of Medicine, University of Electronic Science and Technology of China, Chengdu, China
| | - Z Cheng
- PET/CT Center, Department of Nuclear Medicine, Sichuan Cancer Hospital & Institute, Sichuan Cancer Center, School of Medicine, University of Electronic Science and Technology of China, Chengdu, China.
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Wathes DC, Cheng Z, Salavati M, Buggiotti L, Takeda H, Tang L, Becker F, Ingvartsen KI, Ferris C, Hostens M, Crowe MA. Relationships between metabolic profiles and gene expression in liver and leukocytes of dairy cows in early lactation. J Dairy Sci 2021; 104:3596-3616. [PMID: 33455774 DOI: 10.3168/jds.2020-19165] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [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: 06/26/2020] [Accepted: 10/11/2020] [Indexed: 12/13/2022]
Abstract
Homeorhetic mechanisms assist dairy cows in the transition from pregnancy to lactation. Less successful cows develop severe negative energy balance (NEB), placing them at risk of metabolic and infectious diseases and reduced fertility. We have previously placed multiparous Holstein Friesian cows from 4 herds into metabolic clusters, using as biomarkers measurements of plasma nonesterified fatty acids, β-hydroxybutyrate, glucose and IGF-1 collected at 14 and 35 d in milk (DIM). This study characterized the global transcriptomic profiles of liver and circulating leukocytes from the same animals to determine underlying mechanisms associated with their metabolic and immune function. Liver biopsy and whole-blood samples were collected around 14 DIM for RNA sequencing. All cows with available RNA sequencing data were placed into balanced (BAL, n = 44), intermediate (n = 44), or imbalanced (IMBAL, n = 19) metabolic cluster groups. Differential gene expression was compared between the 3 groups using ANOVA, but only the comparison between BAL and IMBAL cows is reported. Pathway analysis was undertaken using DAVID Bioinformatic Resources (https://david.ncifcrf.gov/). Milk yields did not differ between BAL and IMBAL cows but dry matter intake was less in IMBAL cows and they were in greater energy deficit at 14 DIM (-4.48 v -11.70 MJ/d for BAL and IMBAL cows). Significantly differentially expressed pathways in hepatic tissue included AMPK signaling, glucagon signaling, adipocytokine signaling, and insulin resistance. Genes involved in lipid metabolism and cholesterol transport were more highly expressed in IMBAL cows but IGF1 and IGFALS were downregulated. Leukocytes from BAL cows had greater expression of histones and genes involved in nucleosomes and cell division. Leukocyte expression of heat shock proteins increased in IMBAL cows, suggesting an unfolded protein response, and several key genes involved in immune responses to pathogens were upregulated (e.g., DEFB13, HP, OAS1Z, PTX3, and TLR4). Differentially expressed genes upregulated in IMBAL cows in both tissues included CD36, CPT1, KFL11, and PDK4, all central regulators of energy metabolism. The IMBAL cows therefore had greater difficulty maintaining glucose homeostasis and had dysregulated hepatic lipid metabolism. Their energy deficit was associated with a reduced capacity for cell division and greater evidence of stress responses in the leukocyte population, likely contributing to an increased risk of infectious disease.
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Affiliation(s)
- D C Wathes
- Royal Veterinary College, Hatfield, AL9 7TA Hertfordshire, United Kingdom.
| | - Z Cheng
- Royal Veterinary College, Hatfield, AL9 7TA Hertfordshire, United Kingdom
| | - M Salavati
- Royal Veterinary College, Hatfield, AL9 7TA Hertfordshire, United Kingdom
| | - L Buggiotti
- Royal Veterinary College, Hatfield, AL9 7TA Hertfordshire, United Kingdom
| | - H Takeda
- Unit of Animal Genomics, GIGA Institute, University of Liège, B-4000 Liège, Belgium
| | - L Tang
- Unit of Animal Genomics, GIGA Institute, University of Liège, B-4000 Liège, Belgium
| | - F Becker
- Leibniz Institute for Farm Animal Biology, 18196 Dummerstorf, Germany
| | - K I Ingvartsen
- Department of Animal Science, Aarhus University, DK-8830 Tjele, Denmark
| | - C Ferris
- Agri-Food and Biosciences Institute, Belfast BT9 5PX, United Kingdom
| | - M Hostens
- Department of Reproduction, Obstetrics and Herd Health, Ghent University, B-9820 Merelbeke, Belgium
| | - M A Crowe
- School of Veterinary Medicine, University College Dublin, Dublin 4, Ireland
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Chen P, Guo Y, Huang R, Xiao J, Cheng Z. Spinal schwannoma causes acute subarachnoid haemorrhage: A case report and literature review. Neurochirurgie 2021; 67:495-499. [PMID: 33450272 DOI: 10.1016/j.neuchi.2020.12.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2020] [Revised: 11/23/2020] [Accepted: 12/22/2020] [Indexed: 11/28/2022]
Abstract
BACKGROUND Spinal schwannomas that arise from spinal nerve root sheaths are the most common intradural extramedullary spinal tumours and are often accompanied by nerve roots or spinal cord irritation symptoms. The phenomenon of spinal schwannoma causing subarachnoid haemorrhage (SAH) is rare, with ependymoma of the conus medullaris accounting for most cases. CASE REPORT A 45-year-old man was admitted to our hospital due to progressive lower limb weakness and sudden back pain after hard physical work. The patient had not been able to walk for 2hours upon admission. An emergency magnetic resonance imaging (MRI) scan showed that the spinal cord at the C6-T4 level was severely compressed by a subdural mass. During the emergency operation, exploration of the dura and arachnoid mater revealed a fresh blood clot covering a tumour located on the ventral side of the spinal cord. The size of the tumour was approximately 3×2×1cm without adhesion to the surrounding tissue, but the drainage vein was ruptured. Postoperative pathology showed that the tumour was a schwannoma with areas of fresh haemorrhage and focal necrosis. CONCLUSIONS Spinal schwannomas presenting with SAH are rare events. In our opinion, spinal pathology with rapid progression of neurological symptoms requires early diagnosis and emergency management. Complete excision of haemorrhagic tumours is the goal of treatment to prevent recurrence, which can effectively avoid irreversible damage to the spinal cord resulting from spinal cord compression.
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Affiliation(s)
- P Chen
- Department of Neurosurgery, The Second Affiliated Hospital of Nanchang University, No. 1, Minde road, 330006 Nanchang, Jiangxi, China.
| | - Y Guo
- Department of Neurosurgery, The Second Affiliated Hospital of Nanchang University, No. 1, Minde road, 330006 Nanchang, Jiangxi, China.
| | - R Huang
- Department of Neurosurgery, The Second Affiliated Hospital of Nanchang University, No. 1, Minde road, 330006 Nanchang, Jiangxi, China.
| | - J Xiao
- Department of Neurosurgery, The Second Affiliated Hospital of Nanchang University, No. 1, Minde road, 330006 Nanchang, Jiangxi, China.
| | - Z Cheng
- Department of Neurosurgery, The Second Affiliated Hospital of Nanchang University, No. 1, Minde road, 330006 Nanchang, Jiangxi, China.
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Cheng Z, Johar A, Gottlieb-Vedi E, Nilsson M, Lagergren J, Lagergren P. Impact of co-morbidity on reoperation or death within 90 days of surgery for oesophageal cancer. BJS Open 2021; 5:6073399. [PMID: 33609378 PMCID: PMC7893455 DOI: 10.1093/bjsopen/zraa035] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2020] [Accepted: 10/08/2020] [Indexed: 11/15/2022] Open
Abstract
Background The impact of preoperative co-morbidity on postoperative outcomes in patients with oesophageal cancer is uncertain. A population-based and nationwide cohort study was conducted to assess the influence of preoperative co-morbidity on the risk of reoperation or mortality within 90 days of surgery for oesophageal cancer. Methods This study enrolled 98 per cent of patients who had oesophageal cancer surgery between 1987 and 2015 in Sweden. Modified Poisson regression models provided risk ratios (RRs) with 95 per cent confidence intervals (c.i.) to estimate associations between co-morbidity and risk of reoperation or death within 90 days of oesophagectomy. The RRs were adjusted for age, sex, educational level, pathological tumour stage, neoadjuvant therapy, annual hospital volume, tumour histology and calendar period of surgery. Results Among 2576 patients, 446 (17.3 per cent) underwent reoperation or died within 90 days of oesophagectomy. Patients with a Charlson Co-morbidity Index (CCI) score of 2 or more had an increased risk of reoperation or death compared with those with a CCI score of 0 (RR 1.78, 95 per cent c.i. 1.44 to 2.20), and the risk increased on average by 27 per cent for each point increase of the CCI (RR 1.27, 1.18 to 1.37). The RR was increased in patients with pulmonary disease (RR 1.66, 1.36 to 2.04), cardiac disease (RR 1.37, 1.08 to 1.73), diabetes (RR 1.50, 1.14 to 1.99) and cerebral disease (RR 1.40, 1.06 to 1.85). Conclusion Co-morbidity in general, and pulmonary disease, cardiac disease, diabetes and cerebral disease in particular, increased the risk of reoperation or death within 90 days of oesophageal cancer surgery. This highlights the value of tailored patient selection, preoperative preparation and postoperative care.
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Affiliation(s)
- Z Cheng
- Surgical Care Science, Department of Molecular Medicine and Surgery, Karolinska Institutet, Karolinska University Hospital, Stockholm, Sweden
| | - A Johar
- Surgical Care Science, Department of Molecular Medicine and Surgery, Karolinska Institutet, Karolinska University Hospital, Stockholm, Sweden
| | - E Gottlieb-Vedi
- Upper Gastrointestinal Surgery, Department of Molecular Medicine and Surgery, Karolinska Institutet, Karolinska University Hospital, Stockholm, Sweden
| | - M Nilsson
- Division of Surgery, Department of Clinical Science, Intervention and Technology (CLINTEC), Karolinska Institutet, Stockholm, Sweden.,Department of Upper Abdominal Diseases, Karolinska University Hospital, Stockholm, Sweden
| | - J Lagergren
- Upper Gastrointestinal Surgery, Department of Molecular Medicine and Surgery, Karolinska Institutet, Karolinska University Hospital, Stockholm, Sweden.,School of Cancer and Pharmaceutical Sciences, King's College London, London, UK
| | - P Lagergren
- Surgical Care Science, Department of Molecular Medicine and Surgery, Karolinska Institutet, Karolinska University Hospital, Stockholm, Sweden.,Department of Surgery and Cancer, Imperial College London, London, UK
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Fan Q, Abouelezz K, Wang Y, Lin X, Li L, Gou Z, Cheng Z, Ding F, Jiang S. Influence of vitamin E, tryptophan and β-glucan on growth performance, meat quality, intestinal immunity, and antioxidative status of yellow-feathered chickens fed thermally oxidized oils. Livest Sci 2020. [DOI: 10.1016/j.livsci.2020.104188] [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: 10/23/2022]
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Wang Y, Wu W, Cheng Z, Tan X, Yang Z, Zeng X, Mei B, Ni Z, Wang X. Super-factors associated with transmission of occupational COVID-19 infection among healthcare staff in Wuhan, China. J Hosp Infect 2020; 106:25-34. [PMID: 32574702 PMCID: PMC7836737 DOI: 10.1016/j.jhin.2020.06.023] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2020] [Accepted: 06/17/2020] [Indexed: 12/18/2022]
Abstract
BACKGROUND Globally, there have been many cases of coronavirus disease 2019 (COVID-19) among medical staff; however, the main factors associated with the infection are not well understood. AIM To identify the super-factors causing COVID-19 infection in medical staff in China. METHODS A cross-sectional study was conducted between January 1st and February 30th, 2020, in which front-line members of medical staff who took part in the care and treatment of patients with COVID-19 were enrolled. Epidemiological and demographic data between infected and uninfected groups were collected and compared. Social network analysis (SNA) was used to establish socio-metric social links between influencing factors. FINDINGS A total of 92 medical staff were enrolled. In all participant groups, the super-factor identified by the network was wearing a medical protective mask or surgical mask correctly (degree: 572; closeness: 25; betweenness centrality: 3.23). Touching the cheek, nose, and mouth while working was the super-factor in the infected group. This was the biggest node in the network and had the strongest influence (degree: 370; closeness: 29; betweenness centrality: 0.37). Self-protection score was the super-factor in the uninfected group but was the isolated factor in the infected group (degree: 201; closeness: 28; betweenness centrality: 5.64). For family members, the exposure history to Huanan Seafood Wholesale Market and the contact history to wild animals were two isolated nodes. CONCLUSION High self-protection score was the main factor that prevented medical staff from contracting COVID-19 infection. The main factor contributing to COVID-19 infections among medical staff was touching the cheek, nose, and mouth while working.
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Affiliation(s)
- Y Wang
- Department of Infection Management, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - W Wu
- School of Public Health and Management, Hubei University of Medicine, Shiyan, China; School of Health Science, Wuhan University, Wuhan, China
| | - Z Cheng
- Department of Respiratory and Critical Care Medicine, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - X Tan
- School of Health Science, Wuhan University, Wuhan, China
| | - Z Yang
- Department of Urology, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - X Zeng
- Center for Evidence-Based and Translational Medicine, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - B Mei
- Department of Neurology, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Z Ni
- School of Medicine, Hangzhou Normal University, Hangzhou, China
| | - X Wang
- Department of Urology, Zhongnan Hospital of Wuhan University, Wuhan, China; Center for Evidence-Based and Translational Medicine, Zhongnan Hospital of Wuhan University, Wuhan, China.
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Cheng Z, Carobbio ALC, Soggiu L, Migliorini M, Guastini L, Mora F, Fragale M, Ascoli A, Africano S, Caldwell DG, Canevari FRM, Parrinello G, Peretti G, Mattos LS. SmartProbe: a bioimpedance sensing system for head and neck cancer tissue detection. Physiol Meas 2020; 41:054003. [PMID: 32325435 DOI: 10.1088/1361-6579/ab8cb4] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
OBJECTIVES This study presents SmartProbe, an electrical bioimpedance (EBI) sensing system based on a concentric needle electrode (CNE). The system allows the use of commercial CNEs for accurate EBI measurement, and was specially developed for in-vivo real-time cancer detection. APPROACH Considering the uncertainties in EBI measurements due to the CNE manufacturing tolerances, we propose a calibration method based on statistical learning. This is done by extracting the correlation between the measured impedance value |Z|, and the material conductivity σ, for a group of reference materials. By utilizing this correlation, the relationship of σ and |Z| can be described as a function and reconstructed using a single measurement on a reference material of known conductivity. MAIN RESULTS This method simplifies the calibration process, and is verified experimentally. Its effectiveness is demonstrate by results that show less than 6% relative error. An additional experiment is conducted for evaluating the system's capability to detect cancerous tissue. Four types of ex-vivo human tissue from the head and neck region, including mucosa, muscle, cartilage and salivary gland, are characterized using SmartProbe. The measurements include both cancer and surrounding healthy tissue excised from 10 different patients operated on for head and neck cancer. The measured data is then processed using dimension reduction and analyzed for tissue classification. The final results show significant differences between pathologic and healthy tissues in muscle, mucosa and cartilage specimens. SIGNIFICANCE These results are highly promising and indicate a great potential for SmartProbe to be used in various cancer detection tasks.
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Affiliation(s)
- Zhuoqi Cheng
- Department of Advanced Robotics, Istituto Italiano di Tecnologia, Genova, Italy
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Sgrigna G, Baldacchini C, Dreveck S, Cheng Z, Calfapietra C. Relationships between air particulate matter capture efficiency and leaf traits in twelve tree species from an Italian urban-industrial environment. Sci Total Environ 2020; 718:137310. [PMID: 32088481 DOI: 10.1016/j.scitotenv.2020.137310] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/15/2019] [Revised: 02/08/2020] [Accepted: 02/13/2020] [Indexed: 05/06/2023]
Abstract
Air pollution in the urban environment is widely recognized as one of the most harmful threats for human health. International organizations such as the United Nations and the European Commission are highlighting the potential role of nature in mitigating air pollution and are now funding the implementation of Nature-Based Solutions, especially at the city level. Over the past few decades, the attention of the scientific community has grown around the role of urban forest in air pollution mitigation. Nevertheless, the understanding on Particulate Matter (PM) retention mechanisms by tree leaves is still limited. In this study, twelve tree species were sampled within an urban park of an industrial city. Two techniques were used for leaf analysis: Vacuum/Filtration and Scanning Electron Microscopy coupled with Energy Dispersive X-ray spectroscopy, in order to obtain a quali-quantitative analysis of the different PM size fractions. Results showed that deposited PM loads vary significantly among species. Different leaf traits, including micro and macromorphological characteristics, were observed, measured and ranked, with the final aim to relate them with PM load. Even if no significant correlation between each single leaf characteristic and PM deposition was observed (p > 0.05), multivariate analysis revealed relationships between clusters of leaf traits and deposited PM. Thus, by assigning a score to each trait, an Accumulation index (Ai) was calculated, which was significantly related to the leaf deposited PM load (p ≤ 0.05).
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Affiliation(s)
- G Sgrigna
- Institute of Research on Terrestrial Ecosystems (IRET), National Research Council (CNR), Via Marconi 2, 05010 Porano, TR, Italy
| | - C Baldacchini
- Institute of Research on Terrestrial Ecosystems (IRET), National Research Council (CNR), Via Marconi 2, 05010 Porano, TR, Italy; Biophysics and Nanoscience Centre, Department of Ecological and Biological Sciences (DEB), University of Tuscia, Largo dell'Università snc, 01100 Viterbo, Italy.
| | - S Dreveck
- Department for Innovation in Biological, Agro-food and Forest systems (DIBAF), University of Tuscia, Via San Camillo de Lellis snc, 01100 Viterbo, Italy
| | - Z Cheng
- Brooklyn College, Department of Earth and Environmental Sciences, Brooklyn, NY, United States; Department of Landscape Design and Sustainable Ecosystems, RUDN University, Moscow, Russia
| | - C Calfapietra
- Institute of Research on Terrestrial Ecosystems (IRET), National Research Council (CNR), Via Marconi 2, 05010 Porano, TR, Italy; Academy of Sciences of the Czech Republic, v. v. i., Bělidla 986/4a, 603 00 Brno, Czech Republic
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Sun D, Cheng Z, Jiang TC, Li PF, Jia LQ, Wang TT, Zheng CP, Li Y, Duo MJ. [Characteristics and clinical significance of pulmonary function test and KL-6 in ASSD-ILD and IPF]. Zhonghua Yi Xue Za Zhi 2020; 100:748-752. [PMID: 32192286 DOI: 10.3760/cma.j.cn112137-20191008-02166] [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] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To study the characteristics and clinical significance of pulmonary function test and kerbs von den lungen 6 (KL-6) in anti-synthetase syndrome related interstitial lung disease (ASSD-ILD) and idiopathic pulmonary fibrosis (IPF). Methods: The clinical data of 43 patients with ASSD-ILD (ASSD-ILD group) from May 2015 to May 2017 were collected retrospectively, including 12 males and 31 females, and 34 patients with IPF (IPF group) treated in the First Affiliated Hospital of Zhengzhou University during the same period, including 28 males and 6 females, were also included. The basic information, and the value of pulmonary function test [pulmonary function parameters included the forced vital capacity expressed as percent predicted (FVC%pred), the forced expiratory volume in 1 second expressed as percent predicted (FEV(1)%pred), the ratio of FVC to FEV(1) (FVC/FEV(1)), the peak expiratory flow expressed as percent predicted (PEF%pred), the forced expiratory flow at 25%, 50%, 75% of FVC as percent predicted (FEF(25)%pred, FEF(50)%pred, and FEF(75)%pred), the maximum mid-expiratory flow as percent predicted (MMEF% pred), and the diffusing capacity for carbon monoxide as percent predicted (DLCO% pred)], and serum KL-6 level in ASSD-ILD and IPF were compared. Results: The FEV(1)%pred, FEF(50)%pred, FEF(75)%pred, and MMEF%pred values in ASSD-ILD group were significantly lower than those in IPF group (all P<0.05), while the FVC% pred, FVC/FEV(1), PEF% pred, FEF(25)%pred, and DLCO% pred values in ASSD-ILD group had no significant difference compared with IPF group (all P>0.05). There was no significant difference in serum KL-6 level between ASSD-ILD group and IPF group [(1 169±911) vs (1 210±908) U/ml, t=0.62, P=0.463]. Follow-up analysis showed that the serum KL-6 level of ASSD-ILD patients who died within two years was significantly higher than that of survivors [(2 060±1 168) vs (1 042±858) U/ml, t=2.93, P=0.041]. The serum KL-6 level of patients who died within two years of IPF patients was also significantly higher than that of patients who survived [(1 767±865) vs (1 089±894) U/ml, t=2.53, P=0.026]. The serum KL-6 level in ASSD-ILD group was negatively correlated with FVC%pred (r=-0.43, P=0.004), FEV(1)%pred (r=-0.39, P=0.010) and DLCO% pred (r=-0.41, P=0.006). There was no correlation between serum KL-6 level and pulmonary function test indexes in IPF group (all P>0.05). Conclusions: There is difference in pulmonary function test between ASSD-ILD patients and IPF patients. High serum KL-6 level will be predictive of poor prognosis.
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Affiliation(s)
- D Sun
- Department of Respiratory and Critical Care Medicine, the First Affiliated Hospital of Zhengzhou University; Institute of Clinical Medical Research of Universities of Henan; Henan Key Laboratory for Pharmacology of Liver Diseases, Zhengzhou 450052, China
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Chen C, Wu YH, Li Q, Wu H, Qiu YH, Song TQ, Mao XH, He Y, Cheng Z, Zhai WL, Li JD, Geng ZM, Tang ZH. [Application value of different lymph node staging system in predicting prognosis of patients with intrahepatic cholangiocarcinoma]. Zhonghua Wai Ke Za Zhi 2020; 58:295-302. [PMID: 32241060 DOI: 10.3760/cma.j.cn112139-20200130-00049] [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] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Objective: To examine the value of number of metastatic lymph nodes(NMLN), lymph node ratio(LNR) and log odds of metastatic lymph nodes(LODDS) in assessing the prognosis of patients with intrahepatic cholangiocarcinoma(ICC). Methods: The clinical and pathological data of 440 ICC patients who underwent curative-intent resection in 10 of Chinese hepatobiliary surgery centers from January 2010 to December 2018 were collected, and the deadline of follow-up was April 30th, 2019. Among them, 205 were males and 235 were females, with age of (57.0±9.9) years (range:23-83 years).Eighty-five cases (19.3%) had intrahepatic bile duct stones, and 98 cases (22.3%) had chronic viral hepatitis.The Kaplan-Meier method was used for survival analysis. The univariate and multivariate analysis were implemented respectively using the Log-rank test and Cox proportional hazard model. Results: A total of 440 patients underwent curative-intent resection and lymphadenectomy.R0 resection were achieved in 424 cases (96.4%) and R1 resection were in 16 cases (3.6%). The results of postoperative pathological examination showed that high, moderate and poor differentiation was 4.2%(18/426), 60.6%(258/426) and 35.2%(150/426), respectively.Adenocarcinoma was seen in 90.2%(397/440) and non-adenocarcinoma was seen in 9.8%(43/440), respectively. T stage: 2 cases (0.5%) with Tis, 83 cases(18.9%) with T1a, 97 cases(22.0%) with T1b, 95 cases(21.6%) with T2, 122 cases (27.7%) with T3 and 41 cases(9.3%) with T4.The overall median survival time was 24.0 months, and the 1-,3-, and 5-year survival rate was 74.3%, 37.7% and 18.3%, respectively. Lymphatic metastasis occurred in 175 patients(39.8%), the median total number of TNLE(M(Q(R))) was 6(5), the median number of NMLN was 0(1), the median number of LNR was 0 (0.33) and the median number of LODDS was -0.70(-0.92). Rerults of univariate analysis showed that combined stones, pathological differentiation, vascular invasion, LODDS, margin and T staging affected the prognosis (all P<0.05). Rerults of multivariate analysis showed that pathological differentiation, LODDS, margin, and T staging were independent risk factors affecting the prognosis of ICC patients (all P<0.05). Conclusion: LODDS could be used as an optimal prognostic lymph node staging index for ICC, and it is also an independent risk factor for survival after curative intent resection.
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Affiliation(s)
- C Chen
- Department of Hepatobiliary Surgery, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, China
| | - Y H Wu
- Department of Industrial Engineering, School of Mechanical Engineering, Northwestern Polytechnical University, Xi'an 710072, China
| | - Q Li
- Department of Hepatobiliary Surgery, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, China
| | - H Wu
- Department of Liver Surgery, Liver Transplantation Center, West China Hospital of Sichuan University, Chengdu 610041, China
| | - Y H Qiu
- Department of Biliary Surgery, Eastern Hepatobiliary Surgery Hospital, Affiliated to Naval Medical University, Shanghai 200433, China
| | - T Q Song
- Department of Hepatobiliary Oncology, Tianjin Medical University Cancer Hospital, Tianjin 300060, China
| | - X H Mao
- Department of Hepatobiliary Surgery, Hunan Provincial People's Hospital, Changsha 410005, China
| | - Y He
- Department of Hepatobiliary Surgery, the First Hospital Affiliated to Army Medical University, Chongqing 400038, China
| | - Z Cheng
- Department of Hepatobiliary Surgery, Zhongda Hospital of Southeast University, Nanjing 210009, China
| | - W L Zhai
- Department of Hepatobiliary and Pancreatic Surgery, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - J D Li
- Department of Hepatobiliary Surgery, Affiliated Hospital of North Sichuan Medical College, Nanchong 637000, China
| | - Z M Geng
- Department of Hepatobiliary Surgery, the First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, China
| | - Z H Tang
- Department of General Surgery, Xinhua Hospital Affiliated to Shanghai Jiaotong University School of Medicine, Shanghai 200092, China
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Zhu G, Zhou L, Wang S, Lin P, Guo J, Cai S, Xiong X, Jiang X, Cheng Z. Design of a Drop-in EBI Sensor Probe for Abnormal Tissue Detection in Minimally Invasive Surgery. J Electr Bioimpedance 2020; 11:87-95. [PMID: 33584908 PMCID: PMC7851984 DOI: 10.2478/joeb-2020-0013] [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] [Figures] [Subscribe] [Scholar Register] [Received: 09/22/2020] [Indexed: 06/12/2023]
Abstract
It is a common challenge for the surgeon to detect pathological tissues and determine the resection margin during a minimally invasive surgery. In this study, we present a drop-in sensor probe based on the electrical bioimpedance spectroscopic technology, which can be grasped by a laparoscopic forceps and controlled by the surgeon to inspect suspicious tissue area conveniently. The probe is designed with an optimized electrode and a suitable shape specifically for Minimally Invasive Surgery (MIS). Subsequently, a series of ex vivo experiments are carried out with porcine liver tissue for feasibility validation. During the experiments, impedance measured at frequencies from 1 kHz to 2 MHz are collected on both normal tissues and water soaked tissue. In addition, classifiers based on discriminant analysis are developed. The result of the experiment indicate that the sensor probe can be used to measure the impedance of the tissue easily and the developed tissue classifier achieved accuracy of 80% and 100% respectively.
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Affiliation(s)
- Guanming Zhu
- School of Automation, Guangdong University of Technology
| | - Liang Zhou
- School of Automation, Guangdong University of Technology
| | - Shilong Wang
- School of Automation, Guangdong University of Technology
| | - Pengjie Lin
- School of Automation, Guangdong University of Technology
| | - Jing Guo
- School of Automation, Guangdong University of Technology
| | - Shuting Cai
- School of Automation, Guangdong University of Technology
| | - Xiaoming Xiong
- School of Automation, Guangdong University of Technology
| | - Xiaobing Jiang
- Department of Neurosurgery/Neuro-oncology, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine
| | - Zhuoqi Cheng
- The Mærsk Mc-Kinney Møller Institute, University of Southern Denmark
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Cheng Z, Dall’Alba D, Caldwell DG, Fiorini P, Mattos LS. Design and Integration of Electrical Bio-Impedance Sensing in a Bipolar Forceps for Soft Tissue Identification: A Feasibility Study. IFMBE Proceedings 2020. [DOI: 10.1007/978-981-13-3498-6_1] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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Xu D, Liao R, Wang XX, Cheng Z. Effects of miR-155 on hypertensive rats via regulating vascular mesangial hyperplasia. Eur Rev Med Pharmacol Sci 2019; 22:7431-7438. [PMID: 30468491 DOI: 10.26355/eurrev_201811_16283] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE Vascular smooth muscle cell (VSMC) excessive proliferation is related to hypertension. The cell cycle inhibitory factor (p27) can arrest cell cycle, while its down-regulation is associated with hypertension. It is found that microRNA-155 (miR-155) plays a regulatory role in VSMC proliferation, while its relationship with hypertension is still unclear. Bioinformatics analysis reveals the targeted relationship between miR-155 and the 3'-UTR of p27 mRNA. This study aims to explore the role of miR-155 in regulating p27 expression, VSMC proliferation and apoptosis, and the pathogenesis of hypertension. MATERIALS AND METHODS Dual luciferase reporter gene assay confirmed the relationship between miR-155 and p27. MiR-155, p27, α-smooth muscle actin (α-SMA), and Ki-67 expressions in the thoracic aorta media of rat hypertension model were detected. VSMCs were cultured in vitro and divided into five groups, including anti-miR-NC, anti-miR-155, pIRES2-blank, pIRES2-p27, and anti-miR-155 + pIRES2-p27 groups. Cell cycle was evaluated by using flow cytometry. Cell proliferation was detected with EdU staining. Hypertension rats were randomly divided into antagomir-155 and antagomir-control. Caudal artery systolic and diastolic pressures were measured. RESULTS MiR-155 targeted suppressed p27 expression. MiR-155 and Ki-67 expressions significantly enhanced, while p27 and α-SMA levels reduced in the tunica media from hypertension rats compared with control. Down-regulation of miR-155 and/or up-regulation of p27significantly declined cell proliferation and arrested cell cycle in G1 phase. Antagomir-155 injection markedly decreased systolic and diastolic pressures, elevated p27 and α-SMA expressions in media, and reduced the thickness of tunica media. CONCLUSIONS MiR-155 promoted VSMC proliferation by targeting p27. MiR-155 enhancement was related to hypertension. MiR-155 played a therapeutic effect on hypertension.
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Affiliation(s)
- D Xu
- Department of Cardiology, The First Branch, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China.
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40
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Liu X, Mou S, Cheng Z. Effect of Cryopreservation on Plant Growth, Bulb Characteristics, and Virus Reduction of Garlic (Allium sativum L.). Cryo Letters 2019; 40:322-332. [PMID: 33966058] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
BACKGROUND Cryopreservation is a promising plant germplasm preservation technique that provides genetically stable plantlets. OBJECTIVE To investigate whether the cryopreservation protocol developed for garlic compromises the performance of the cryopreserved plants, compared to garlic plants grown in the field. MATERIALS AND METHODS The field performance of cryopreserved garlic plantlets under in vivo conditions was compared with garlic derived from the field. We assessed both net photosynthetic rate, bulb characteristics and the efficiency of cryotherapy-induced virus eradication. RESULTS The superiority of the morphological traits of cryopreserved garlic increased gradually with the growth of the garlic plant. Cryopreservation also improved the net photosynthetic rate, bulb diameter (by 13.4-18.2%), bulb weight (by 37.9-50.5%), and clove number per bulb (by 25.7-63.6%). The highest virus elimination rate due to cryopreservation was 75.0% for onion yellow dwarf virus (OYDV). CONCLUSION These findings suggest cryopreservation as a promising method for conservation and improvement of garlic.
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Affiliation(s)
- X Liu
- College of Horticulture, Northwest A&F University, Yangling, Shaanxi, People's Republic of China
| | - S Mou
- College of Agriculture, Northwest A&F University, Yangling, Shaanxi, People's Republic of China
| | - Z Cheng
- College of Horticulture, Northwest A&F University, Yangling, Shaanxi, People's Republic of China.
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Li MN, Zhao L, Li XH, Zhou HA, Huang XH, Liu ZH, Cheng Z. [Autologous peripheral blood stem cell transplantation combined with bortezomib and dexamethasone for the treatment of light chain proximal tubulopathy: a case report]. Zhonghua Xue Ye Xue Za Zhi 2019; 40:703. [PMID: 31495145 PMCID: PMC7342878 DOI: 10.3760/cma.j.issn.0253-2727.2019.08.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Affiliation(s)
- M N Li
- Department of Nephrology, Jinling Hospital, Nanjing Medical University, Nanjing 210002, China
| | - L Zhao
- National Clinical Research Center of Kidney Diseases, Jinling Hospital, Nanjing 210002, China
| | - X H Li
- National Clinical Research Center of Kidney Diseases, Jinling Hospital, Nanjing 210002, China
| | - H A Zhou
- National Clinical Research Center of Kidney Diseases, Jinling Hospital, Nanjing 210002, China
| | - X H Huang
- National Clinical Research Center of Kidney Diseases, Jinling Hospital, Nanjing 210002, China
| | - Z H Liu
- Department of Nephrology, Jinling Hospital, Nanjing Medical University, Nanjing 210002, China
| | - Z Cheng
- National Clinical Research Center of Kidney Diseases, Jinling Hospital, Nanjing 210002, China
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Deek M, Cecil E, Han P, Cheng Z, Fakhry C, Gourin C, Koch W, Page B, McNutt T, Kiess A, Quon H. Long Term Toxicity and Oncologic Outcomes of De-Intensified Chemoradiation in Early Stage Oropharyngeal Carcinoma. Int J Radiat Oncol Biol Phys 2019. [DOI: 10.1016/j.ijrobp.2019.06.296] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Sheikh K, Mathews L, Hrinivich W, Lakshminarayanan P, Cheng Z, McNutt T, Quon H, Lee J. Predicting Xerostomia Using Diffusion Weighted Imaging in Head and Neck Cancer. Int J Radiat Oncol Biol Phys 2019. [DOI: 10.1016/j.ijrobp.2019.06.337] [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: 11/29/2022]
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Hill C, Han-Oh S, Cheng Z, Meyer J, Herman J, Narang A. Quantifying the Intra-fraction Treatment Variation in the Shift Off Bone in Fiducial-Based IG-SBRT for Pancreatic Adenocarcinoma. Int J Radiat Oncol Biol Phys 2019. [DOI: 10.1016/j.ijrobp.2019.06.800] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Guo Y, Lakshminarayanan P, Han P, Sheikh K, Cheng Z, Jiang W, Siddiqui S, Shpitser I, Taylor R, Quon H, McNutt T. A Feasibility Study of Xerostomia Outcome-Based Treatment Planning to Improve the Probability of Xerostomia Recovery in Head and Neck Cancer Patients. Int J Radiat Oncol Biol Phys 2019. [DOI: 10.1016/j.ijrobp.2019.06.338] [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: 11/30/2022]
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Deek M, Cecil E, Sloan L, Cheng Z, Han P, Sheikh K, Gui C, Guo Y, Lakshminarayanan P, Fakhry C, Koch W, Gourin C, Tan M, Mydlarz W, Schmitt N, McNutt T, Page B, Kiess A, Richmon J, Quon H. Definitive Management of Early Stage Oropharyngeal Carcinoma: A Comparison of Long Term Outcomes Following Transoral Surgery or Definitive Chemoradiation. Int J Radiat Oncol Biol Phys 2019. [DOI: 10.1016/j.ijrobp.2019.06.1516] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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47
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Cheng Z, Sheikh K, Lakshminarayanan P, Jiang W, Han P, Guo Y, Cecil E, Sloan L, Kiess A, Page B, Lee J, Quon H, McNutt T. Voxel Dose Pattern for Patient-Reported Dysphagia Among Head and Neck Cancer Patients Receiving Definitive Radiotherapy. Int J Radiat Oncol Biol Phys 2019. [DOI: 10.1016/j.ijrobp.2019.06.085] [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: 10/26/2022]
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Alcorn S, Fiksel J, Hu C, Wright J, Kleinberg L, Levin A, Smith T, Cheng Z, Elledge C, Kim K, Rao A, Sloan L, Page B, Stinson S, Voong R, McNutt T, Bowers M, DeWeese T, Zeger S. Pilot Assessment of the BMET Decision Support Platform: A Tool to Improve Provider Survival Estimates and Selection of Prognosis-Appropriate Treatment for Patients with Symptomatic Bone Metastases. Int J Radiat Oncol Biol Phys 2019. [DOI: 10.1016/j.ijrobp.2019.06.474] [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: 10/26/2022]
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Sloan L, Sen R, Doucet M, Blosser L, Shpitser I, Cheng Z, Katulis L, Wemmer J, Jackson C, Hu C, McNutt T, Grossman S, Holdhoff M, Lim M, Redmond K, Eberhart C, Quon H, Pardoll D, Ganguly S, Kleinberg L. The Immunodynamics of Myeloid-Derived Suppressor Cell and Monocyte Populations in the Peripheral Blood in Patients with Newly Diagnosed Glioblastoma Undergoing Adjuvant Temozolomide and Radiation Therapy. Int J Radiat Oncol Biol Phys 2019. [DOI: 10.1016/j.ijrobp.2019.06.1029] [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: 10/26/2022]
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Han P, Hales R, Lakshminarayanan P, Elledge C, Cheng Z, Anderson L, Hoff J, McNutt T, Voong R. Exploring the Relationship of Radiation Dose Exposed to the Length of Esophagus and Weight Loss in Lung Cancer Patients treated with Definitive Radiation. Int J Radiat Oncol Biol Phys 2019. [DOI: 10.1016/j.ijrobp.2019.06.081] [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]
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