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Wang R, Pinto D, Liu T, Hamade M, Jubane M, Arif A, Boateng J, Maloney S, Amin A, Sandhu J, Nini S, Manov J, Tordjman L, Villavicencio J, Chamoun M, Leslom S, Aristizabal J, Felix M, Gomez-Rodriguez C, Alessandrino F. Effect of a dedicated PI-QUAL curriculum on the assessment of prostate MRI quality. Eur J Radiol 2023; 164:110865. [PMID: 37167684 DOI: 10.1016/j.ejrad.2023.110865] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2023] [Revised: 04/28/2023] [Accepted: 05/03/2023] [Indexed: 05/13/2023]
Abstract
PURPOSE The Prostate Imaging Quality (PI-QUAL) score is a metric to evaluate the diagnostic quality of multiparametric magnetic resonance imaging (MRI) of the prostate. This study evaluated the impact of a prostate MRI quality training lecture on the participant's ability to assess prostate MRI image quality. METHODS Eighteen in-training-radiologists of varying experience in reviewing diagnostic prostate MRI assessed the image quality of ten examinations. Then, they attended a dedicated lecture on MRI quality assessment using the PI-QUAL score. After the lecture, the same participants evaluated the image quality of a new set of ten scans applying the PI-QUAL score. Results were assessed using receiver operating characteristic (ROC) analysis. The reference standard was the PI-QUAL score assessed by a fellowship trained abdominal radiologist with experience in reading prostate MRI. RESULTS There was a significant improvement in the average area under the curve (AUC) for assessment of prostate MRI image quality from baseline (0.82; [0.576 - 0.888]) to post teaching (1.0; [0.954-1]), with an improvement of 0.18 (p < 0.03). When ROC curves were computed for different cohorts stratified based on year of training, difference ranged from 0.48 for second year residents to 0.32 for fourth year residents (p < 0.001-0.01). For abdominal imaging fellows, the pre-teaching AUC was 0.9 [0.557-1] and post teaching AUC was 1 [0.957-1], a difference of 0.1 (p = 0.20). CONCLUSIONS A dedicated lecture on PI-QUAL improved the ability of radiologists-in-training to assess prostate MRI image quality, with variable impact depending on year of training.
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Affiliation(s)
- Richard Wang
- Department of Radiology, University of Miami/Jackson Memorial Hospital, Leonard M. Miller School of Medicine, Miami, FL, USA
| | - Denver Pinto
- Department of Radiology, University of Miami/Jackson Memorial Hospital, Leonard M. Miller School of Medicine, Miami, FL, USA
| | - TianHao Liu
- Division of Biostatistics, Department of Public Health Science, Leonard M. Miller School of Medicine, Miami, FL, USA
| | - Mohamad Hamade
- Department of Radiology, University of Miami/Jackson Memorial Hospital, Leonard M. Miller School of Medicine, Miami, FL, USA
| | - Maverick Jubane
- Department of Radiology, University of Miami/Jackson Memorial Hospital, Leonard M. Miller School of Medicine, Miami, FL, USA
| | - Aazim Arif
- Department of Radiology, University of Miami/Jackson Memorial Hospital, Leonard M. Miller School of Medicine, Miami, FL, USA
| | - Joseph Boateng
- Department of Radiology, University of Miami/Jackson Memorial Hospital, Leonard M. Miller School of Medicine, Miami, FL, USA
| | - Sean Maloney
- Department of Radiology, University of Miami/Jackson Memorial Hospital, Leonard M. Miller School of Medicine, Miami, FL, USA
| | - Ayush Amin
- Department of Radiology, University of Miami/Jackson Memorial Hospital, Leonard M. Miller School of Medicine, Miami, FL, USA
| | - Jagteshwar Sandhu
- Department of Radiology, University of Miami/Jackson Memorial Hospital, Leonard M. Miller School of Medicine, Miami, FL, USA
| | - Saad Nini
- Department of Radiology, University of Miami/Jackson Memorial Hospital, Leonard M. Miller School of Medicine, Miami, FL, USA
| | - John Manov
- Department of Radiology, University of Miami/Jackson Memorial Hospital, Leonard M. Miller School of Medicine, Miami, FL, USA
| | - Laura Tordjman
- Department of Radiology, University of Miami/Jackson Memorial Hospital, Leonard M. Miller School of Medicine, Miami, FL, USA
| | - Joseph Villavicencio
- Department of Radiology, University of Miami/Jackson Memorial Hospital, Leonard M. Miller School of Medicine, Miami, FL, USA
| | - Michelle Chamoun
- Department of Radiology, University of Miami/Jackson Memorial Hospital, Leonard M. Miller School of Medicine, Miami, FL, USA
| | - Salman Leslom
- Department of Radiology, University of Miami/Jackson Memorial Hospital, Leonard M. Miller School of Medicine, Miami, FL, USA
| | - Julieta Aristizabal
- Department of Radiology, University of Miami/Jackson Memorial Hospital, Leonard M. Miller School of Medicine, Miami, FL, USA
| | - Marcelo Felix
- Department of Radiology, University of Miami/Jackson Memorial Hospital, Leonard M. Miller School of Medicine, Miami, FL, USA
| | - Carolina Gomez-Rodriguez
- Department of Radiology, University of Miami/Jackson Memorial Hospital, Leonard M. Miller School of Medicine, Miami, FL, USA
| | - Francesco Alessandrino
- Department of Radiology, University of Miami/Jackson Memorial Hospital, Leonard M. Miller School of Medicine, Miami, FL, USA; Division of Abdominal Imaging, Department of Radiology, Leonard M. Miller School of Medicine, Miami, FL, USA.
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Shi LQ, Peng JF, Xu DJ, Tian JJ, Liu TH, Jiang BB, Zhang FC. Leaching characteristics and pollution risk assessment of potentially harmful elements from coal gangue exposed to weathering for different periods of time. Environ Sci Pollut Res Int 2023; 30:63200-63214. [PMID: 36964463 DOI: 10.1007/s11356-023-26525-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/09/2021] [Accepted: 03/14/2023] [Indexed: 05/10/2023]
Abstract
To explore the leaching behavior and potential degree of pollution that can result from the backfilling of goafs with different types of coal gangue (CG), fresh CG from the Hongqi Coal Mine goaf and surface CG (weathered for 1 year) were selected as the research objects in this study. A series of leaching experiments were carried out using the Ordovician limestone karst waters of the mining areas as the soaking solution. A comparative study on the dissolution characteristics of Fe3+, Mn2+, and SO42- and on the traditional water quality parameters of the two types of CG was conducted. The results showed that the soaked, weathered CG displayed a higher ion dissolution value than fresh CG. The ratio of each ion was as follows: Fe3+ was 1, Mn2+ was 2.86 ~ 68.18, and SO42- was 1.34 ~ 2.09. Over time, the ion concentration of water samples that initially contained high ion concentration values showed a decreasing trend after CG was soaked in these waters, but the values were still in the range of high ion release concentrations. The pH and oxidation‒reduction potential (ORP) values of the leachate of both CG types indicated that the leachates were weakly alkaline and weakly oxidizing, and the overall change in total dissolved solids (TDS) was small and consistent with the SO42- trend. SO42- in the leachate of the weathered CG showed a more significant correlation with the pH and TDS of the soaking solution, and it was the major pollutant. According to the geoaccumulation index evaluation, weathered CG had higher pollution potential than fresh CG. Fe3+ presented a slight and moderate risk for contamination.
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Affiliation(s)
- Long-Qing Shi
- College of Earth Sciences & Engineering, Shandong University of Science and Technology, Qingdao, Shandong, 266590, People's Republic of China
| | - Jin-Feng Peng
- College of Earth Sciences & Engineering, Shandong University of Science and Technology, Qingdao, Shandong, 266590, People's Republic of China
| | - Dong-Jing Xu
- College of Earth Sciences & Engineering, Shandong University of Science and Technology, Qingdao, Shandong, 266590, People's Republic of China.
| | - Jin-Jin Tian
- College of Earth Sciences & Engineering, Shandong University of Science and Technology, Qingdao, Shandong, 266590, People's Republic of China
| | - Tian-Hao Liu
- College of Earth Sciences & Engineering, Shandong University of Science and Technology, Qingdao, Shandong, 266590, People's Republic of China
| | - Bin-Bin Jiang
- State Key Laboratory of Water Resources Protection and Utilization in Coal Mining, Beijing, 102211, People's Republic of China
| | - Fa-Cai Zhang
- Etuoke Banner Great Wall No. 3 Mining Co., Ltd, Ordos, Inner Mongolia, 016220, People's Republic of China
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Zheng F, Liao YJ, Cai MY, Liu TH, Chen SP, Wu PH, Wu L, Bian XW, Guan XY, Zeng YX, Yuan YF, Kung HF, Xie D. Correction: Systemic Delivery of MicroRNA-101 Potently Inhibits Hepatocellular Carcinoma In Vivo by Repressing Multiple Targets. PLoS Genet 2021; 17:e1009960. [PMID: 34879067 PMCID: PMC8654154 DOI: 10.1371/journal.pgen.1009960] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
[This corrects the article DOI: 10.1371/journal.pgen.1004873.].
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Liu TH, Chen MH, Tu WQ, Liang QE, Tao WC, Jin Z, Xiao Y, Chen LG. Network and 16S rRNA Sequencing-Combined Approach Provides Insightal Evidence of Vitamin K 2 for Salt-Sensitive Hypertension. Front Nutr 2021; 8:639467. [PMID: 33718421 PMCID: PMC7943625 DOI: 10.3389/fnut.2021.639467] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2020] [Accepted: 01/20/2021] [Indexed: 01/05/2023] Open
Abstract
Vitamin K2 (VK2), found to act to treat hypertension, has been widely used in the food and pharmaceutical industries nowadays. However, the potential targets and molecular mechanisms of VK2 for salt-sensitive hypertension have not been fully investigated. Therefore, the study aimed to investigate the potential molecular mechanisms of VK2 for salt-sensitive hypertension using network pharmacology and 16S rRNA sequencing strategy. The network pharmacology-based findings from KEGG enrichment analysis revealed that VK2-treated salt-sensitive hypertension was mechanically associated with the complement and coagulation cascades, calcium signaling pathway, renin–angiotensin system, etc. A total of 29 different bacteria in an animal experiment after VK2 supplementation were screened and functionally enriched using PICRUSt2. Additionally, 10 signaling pathways were identified in which the renin–angiotensin system was found to be the potential molecular mechanisms with the greatest change in multiple and statistical significance. Moreover, the results of the renin–angiotensin system-related protein expression exhibited VK2-inhibited renin–angiotensin system in salt-induced hypertensive mice, which significantly verified the previous biological and functional prediction analysis. Finally, spearman correlation analysis showed the different bacteria such as Dubosiella, Ileibacterium, etc., had a positive or negative correlation with renin–angiotensin system-related proteins in salt-induced mice. In conclusion, the potential molecular mechanisms of VK2 for salt-sensitive hypertension may be beneficially achieved by the specific inhibition of the renin–angiotensin system, contributing to the development for a new preventive strategy of salt-sensitive hypertension.
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Affiliation(s)
- Tian-Hao Liu
- College of Chinese medicine, Jinan University, Guangzhou, China
| | - Ming-Hao Chen
- College of medicine, Jinan University, Guangzhou, China
| | - Wan-Qing Tu
- College of Chinese medicine, Jinan University, Guangzhou, China
| | - Qiu-Er Liang
- College of Chinese medicine, Jinan University, Guangzhou, China
| | - Wen-Cong Tao
- College of Chinese medicine, Jinan University, Guangzhou, China
| | - Zhen Jin
- College of Chinese medicine, Jinan University, Guangzhou, China
| | - Ya Xiao
- College of Chinese medicine, Jinan University, Guangzhou, China
| | - Li-Guo Chen
- College of Chinese medicine, Jinan University, Guangzhou, China
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Liu TH, Tao WC, Liang QE, Tu WQ, Xiao Y, Chen LG. Gut Microbiota-Related Evidence Provides New Insights Into the Association Between Activating Transcription Factor 4 and Development of Salt-Induced Hypertension in Mice. Front Cell Dev Biol 2020; 8:585995. [PMID: 33282868 PMCID: PMC7691383 DOI: 10.3389/fcell.2020.585995] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2020] [Accepted: 10/19/2020] [Indexed: 12/21/2022] Open
Abstract
Activating transcription factor 4 (ATF4), which regulates genes associated with endoplasmic reticulum stress, apoptosis, autophagy, the gut microbiome, and metabolism, has been implicated in many diseases. However, its mechanistic role in hypertension remains unclear. In the present study, we investigated its role in salt-sensitive hypertensive mice. Wild-type (WT) C57BL/6J mice were used to establish Atf4 knockout (KO) and overexpression mice using CRISPR-Cas9 and lentiviral overexpression vectors. Then, fecal microbiota transplantation (FMT) from Atf4 ± mice and vitamin K2 (VK2) supplementation were separately carried out in high-salt-diet (8% NaCl)-induced mice for 4 weeks. We found that Atf4 KO inhibited and Atf4 overexpression enhanced the increase in blood pressure and endothelial dysfunction induced by high salt intake in mice, while regulating the gut microbiota composition and VK2 expression. It was further verified that ATF4 is involved in the regulation of salt-sensitive hypertension and vascular endothelial function, which is achieved through association with gut microbiota and may be related to VK2 and different bacteria such as Dubosiella. In addition, we found that VK2 supplementation prevents the development of salt-sensitive hypertension and maintains vascular endothelial function; moreover, VK2 supplementation increases the abundance of intestinal Dubosiella and downregulates the relative expression of Atf4 in the thoracic aorta of mice. We conclude that ATF4 plays an important role in regulating gut microbiota and VK2 production, providing new insights into the association between ATF4 and development of salt-induced hypertension in mice, meanwhile contributing to the development for a new preventive strategy of hypertension.
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Affiliation(s)
- Tian-Hao Liu
- College of Chinese Medicine, Jinan University, Guangzhou, China.,Institute of Integrative Chinese and Western Medicine, Jinan University, Guangzhou, China
| | - Wen-Cong Tao
- College of Chinese Medicine, Jinan University, Guangzhou, China.,Institute of Integrative Chinese and Western Medicine, Jinan University, Guangzhou, China
| | - Qiu-Er Liang
- College of Chinese Medicine, Jinan University, Guangzhou, China.,Institute of Integrative Chinese and Western Medicine, Jinan University, Guangzhou, China
| | - Wan-Qing Tu
- College of Chinese Medicine, Jinan University, Guangzhou, China.,Institute of Integrative Chinese and Western Medicine, Jinan University, Guangzhou, China
| | - Ya Xiao
- College of Chinese Medicine, Jinan University, Guangzhou, China.,Institute of Integrative Chinese and Western Medicine, Jinan University, Guangzhou, China
| | - Li-Guo Chen
- College of Chinese Medicine, Jinan University, Guangzhou, China.,Institute of Integrative Chinese and Western Medicine, Jinan University, Guangzhou, China
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Liu TH, Li XY, Han XW, Zhang YT, Zhou DH, Xu LH, Huang JW, Fang JP. [Acute lymphoblastic leukemia complicated with cerebral venous thrombosis in 14 children]. Zhonghua Er Ke Za Zhi 2020; 58:764-768. [PMID: 32872718 DOI: 10.3760/cma.j.cn112140-20200203-00058] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To explore the clinical characteristics and management of childhood acute lymphoblastic leukemia (ALL) complicated with cerebral venous thrombosis (CVT). Methods: The clinical data of 14 ALL children complicated with CVT who were admitted to Department of Pediatrics of Sun Yat-sen Memorial Hospital and underwent chemotherapy from January 2011 to October 2019 were collected retrospectively. The clinical manifestations, coagulation function, imaging findings, treatment plan and prognosis of patients were analyzed. Results: CVT was diagnosed in 14 (2.8%, 14/505) cases, with a median age of 10 (3-14) years at onset, 11 cases occurred in the stage of induction remission, and the acute onsets were mainly characterized by convulsions (9 cases), consciousness disorders (6 cases) and headache (4 cases). Coagulation function test showed that, before the CVT, antithrombin Ⅲ activity was lower than 60% in 8 cases, D-dimer elevated on the day of onset in 8 cases. Arteriovenous angiography showed filling defects in single (9 cases) or multiple (5 cases) venous sinuses. The most common site of venous sinus enlargement was superior sagittal sinus (10 cases). Secondary cerebral hemorrhage was found in 5 cases. Anticoagulation therapy included combination of low-molecular-weight heparin (LMWH) and warfarin in 9 cases, sequential application of LMWH and warfarin in 2 cases, and LMWH alone in 3 cases. Patients accepted further asparaginase and no CVT recurrence or progression was found. Conclusions: The secondary coagulation dysfunction during induction remission chemotherapy is the major risk factor for CVT in ALL, which needs active monitoring and early prevention. Arteriovenous angiography can diagnose accurately, and the prognosis of anticoagulant therapy with LMWH and warfarin is optimistic.
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Affiliation(s)
- T H Liu
- Department of Pediatrics, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou 510120, China
| | - X Y Li
- Department of Pediatrics, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou 510120, China
| | - X W Han
- Department of Pediatrics, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou 510120, China
| | - Y T Zhang
- Department of Pediatrics, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou 510120, China
| | - D H Zhou
- Department of Pediatrics, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou 510120, China
| | - L H Xu
- Department of Pediatrics, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou 510120, China
| | - J W Huang
- Department of Radiology , Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou 510120, China
| | - J P Fang
- Department of Pediatrics, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou 510120, China
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Liu TH, Tu WQ, Tao WC, Liang QE, Xiao Y, Chen LG. Verification of Resveratrol Inhibits Intestinal Aging by Downregulating ATF4/Chop/Bcl-2/Bax Signaling Pathway: Based on Network Pharmacology and Animal Experiment. Front Pharmacol 2020; 11:1064. [PMID: 32754039 PMCID: PMC7366860 DOI: 10.3389/fphar.2020.01064] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Accepted: 06/30/2020] [Indexed: 12/18/2022] Open
Abstract
Resveratrol is one of the most well-known drugs used in the treatment of aging. However, the potential mechanisms of resveratrol on intestinal aging have not yet been fully investigated. Herein, we aimed to further explore the pharmacological mechanisms of resveratrol as a therapy for intestinal aging. We performed network construction and enrichment analysis via network pharmacology. Then a further animal experimental validation containing 20 female C57BL/6J (wild type, WT) and 16 female ATF4+/- (knock down, KD) naturally aging mice and oral supplementary resveratrol (44 mg/kg/day) for 30 days were conducted. The expression of superoxide dismutase (SOD), glutathione peroxidase (GSH-Px), catalase (CAT), linear alkylethoxylate (AE), and malondialdehyde (MDA) were measured by ELISA, the observation of pathological changes and apoptosis in intestinal tissue were performed by HE, PAS, and TUNEL staining, the ATF4/Chop/Bcl-2/Bax signaling pathway-related proteins and mRNAs expression were measured by western blotting and real-time PCR. The network pharmacology showed 132 targets of resveratrol on aging. The enrichment analysis showed resveratrol antiaging involved mainly included protein heterodimerization activity, apoptosis, etc. Then ATF4/Chop/Bcl-2/Bax signaling pathway in biological process of apoptosis was selected to verify the potential mechanisms. Animal studies showed resveratrol upregulated the relative expression of SOD, GSH-Px, CAT, AE, whereas it downregulated the relative expression of MDA in intestine compared with the control group. There was also higher relative expression of SOD, GSH-Px, CAT, AE, and lower relative expression of MDA in KD mice than that in WT mice. Moreover, there was higher relative expression of SOD, GSH-Px, CAT, AE, and lower relative expression of MDA in KD mice than that in WT mice after resveratrol treatment. Decreased ATF4, Chop, Bax but increased Bcl-2 proteins and mRNAs expression were determined after resveratrol treatment compared with the control group; lower ATF4, Chop, Bax but higher Bcl-2 proteins and mRNAs expression were found in KD mice than that in WT mice. Additionally, lower relative proteins and mRNAs expression of ATF4, Chop, Bax and higher relative expression of Bcl-2 in KD mice than that in WT mice after resveratrol treatment. These findings demonstrated that resveratrol substantially inhibited intestinal aging via downregulating ATF4/Chop/Bcl-2/Bax signaling pathway.
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Affiliation(s)
- Tian-Hao Liu
- College of Chinese Medicine, Jinan University, Guangzhou, China
| | - Wan-Qing Tu
- College of Chinese Medicine, Jinan University, Guangzhou, China
| | - Wen-Cong Tao
- College of Chinese Medicine, Jinan University, Guangzhou, China
| | - Qiu-Er Liang
- College of Chinese Medicine, Jinan University, Guangzhou, China
| | - Ya Xiao
- College of Chinese Medicine, Jinan University, Guangzhou, China
| | - Li-Guo Chen
- College of Chinese Medicine, Jinan University, Guangzhou, China
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Liu TH, Chen WH, Chen XD, Liang QE, Tao WC, Jin Z, Xiao Y, Chen LG. Network Pharmacology Identifies the Mechanisms of Action of TaohongSiwu Decoction Against Essential Hypertension. Med Sci Monit 2020; 26:e920682. [PMID: 32187175 PMCID: PMC7102407 DOI: 10.12659/msm.920682] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND TaohongSiwu decoction (THSWT), a traditional herbal formula, has been used to treat cardiovascular and cerebrovascular diseases such as essential hypertension (EH) in China. However, the pharmacological mechanism is not clear. To investigate the mechanisms of THSWT in the treatment of EH, we performed compounds, targets prediction and network analysis using a network pharmacology method. MATERIAL AND METHODS We selected chemical constituents and targets of THSWT according to TCMSP and UniProtKB databases and collected therapeutic targets on EH from Online Mendelian Inheritance in Man (OMIM), Drugbank and DisGeNET databases. The protein-protein interaction (PPI) was analyzed by using String database. Then network was constructed by using Cytoscape_v3.7.1, and the Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway enrichment was performed by using Database for Annotation, Visualization and Integrated Discovery (DAVID) software. RESULTS The results of our network pharmacology research showed that the THSWT, composed of 6 Chinese herbs, contained 15 compounds, and 23 genes regulated the main signaling pathways related to EH. Moreover, the PPI network based on targets of THSWT on EH revealed the interaction relationship between targets. These core compounds were 6 of the 15 disease-related compounds in the network, kaempferol, quercetin, luteolin, Myricanone, beta-sitosterol, baicalein, and the core genes contained ADRB2, CALM1, HMOX1, JUN, PPARG, and VEGFA, which were regulated by more than 3 compounds and significantly associated with Calcium signaling pathway, cGMP-PKG signaling pathway, cAMP signaling pathway, PI3K-Akt signaling pathway, Rap1 signaling pathway, and Ras signaling pathway. CONCLUSIONS This network pharmacological study can reveal potential mechanisms of multi-target and multi-component THSWT in the treatment of EH, provide a scientific basis for studying the mechanism.
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Affiliation(s)
- Tian-Hao Liu
- Chinese Medicine College, Jinan University, Guangzhou, Guangdong, China (mainland)
| | - Wei-Hao Chen
- Chinese Medicine College, Jinan University, Guangzhou, Guangdong, China (mainland)
| | - Xu-Dong Chen
- Chinese Medicine College, Jinan University, Guangzhou, Guangdong, China (mainland)
| | - Qiu-Er Liang
- Chinese Medicine College, Jinan University, Guangzhou, Guangdong, China (mainland)
| | - Wen-Cong Tao
- Chinese Medicine College, Jinan University, Guangzhou, Guangdong, China (mainland)
| | - Zhen Jin
- Chinese Medicine College, Jinan University, Guangzhou, Guangdong, China (mainland)
| | - Ya Xiao
- Chinese Medicine College, Jinan University, Guangzhou, Guangdong, China (mainland)
| | - Li-Guo Chen
- Chinese Medicine College, Jinan University, Guangzhou, Guangdong, China (mainland)
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Liu TH, Zhou Y, Tao WC, Liu Y, Zhang XM, Tian SZ. Bacterial Diversity in Roots, Stems, and Leaves of Chinese Medicinal Plant Paris polyphylla var. yunnanensis. Pol J Microbiol 2020; 69:91-97. [PMID: 32189484 PMCID: PMC7256839 DOI: 10.33073/pjm-2020-012] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2019] [Revised: 02/02/2020] [Accepted: 02/13/2020] [Indexed: 11/05/2022] Open
Abstract
The root of Paris polyphylla var. yunnanensis, a famous and endangered traditional Chinese herb, has a significant medicinal value. The aim of this study was to analyze the composition and functional characteristics of bacterial endophytes in roots, stems, and leaves of P. polyphylla var. yunnanensis. The 16S rRNA gene sequencing and functional prediction of bacterial endophytes in roots, stems, and leaves of P. polyphylla var. yunnanensis were conducted. The Chao and Shannon indices of the bacteria in roots were significantly higher than those in stems and leaves. The dominant endophyte phyla were Cyanobacteria, Proteobacteria, Bacteroidetes, Firmicutes, and Actinobacteria. The main genera detected in roots were unclassified Cyanobacteria, Rhizobium, Flavobacterium, and Sphingobium; the main genera in stems were norank_c__Cyanobacteria, Bacillus, and Pseudomonas; the main genera in leaves were norank_c__Cyanobacteria and Rhizobium. The microbiota in roots was particularly enriched in functional categories "extracellular structures" and "cytoskeleton" compared with stems and leaves (p < 0.05). Our study reveals the structural and functional characteristics of the endophytic bacteria in roots, stems, and leaves of P. polyphylla var. yunnanensis, which aids in the scientific understanding of this plant. The root of Paris polyphylla var. yunnanensis, a famous and endangered traditional Chinese herb, has a significant medicinal value. The aim of this study was to analyze the composition and functional characteristics of bacterial endophytes in roots, stems, and leaves of P. polyphylla var. yunnanensis. The 16S rRNA gene sequencing and functional prediction of bacterial endophytes in roots, stems, and leaves of P. polyphylla var. yunnanensis were conducted. The Chao and Shannon indices of the bacteria in roots were significantly higher than those in stems and leaves. The dominant endophyte phyla were Cyanobacteria, Proteobacteria, Bacteroidetes, Firmicutes, and Actinobacteria. The main genera detected in roots were unclassified Cyanobacteria, Rhizobium, Flavobacterium, and Sphingobium; the main genera in stems were norank_c__Cyanobacteria, Bacillus, and Pseudomonas; the main genera in leaves were norank_c__Cyanobacteria and Rhizobium. The microbiota in roots was particularly enriched in functional categories “extracellular structures” and “cytoskeleton” compared with stems and leaves (p < 0.05). Our study reveals the structural and functional characteristics of the endophytic bacteria in roots, stems, and leaves of P. polyphylla var. yunnanensis, which aids in the scientific understanding of this plant.
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Affiliation(s)
- Tian-Hao Liu
- Yunnan Key Laboratory of Molecular Biology of Chinese Medicine, Faculty of Basic Medical Science, Yunnan University of Chinese Medicine , Kunming, Yunnan , China ; College of Chinese Medicine, Jinan University , Guangzhou, Guangdong , China
| | - Yin Zhou
- Yunnan Key Laboratory of Molecular Biology of Chinese Medicine, Faculty of Basic Medical Science, Yunnan University of Chinese Medicine , Kunming, Yunnan , China
| | - Wen-Cong Tao
- College of Chinese Medicine, Jinan University , Guangzhou, Guangdong , China
| | - Yang Liu
- Yunnan Key Laboratory of Molecular Biology of Chinese Medicine, Faculty of Basic Medical Science, Yunnan University of Chinese Medicine , Kunming, Yunnan , China
| | - Xiao-Mei Zhang
- Yunnan Key Laboratory of Molecular Biology of Chinese Medicine, Faculty of Basic Medical Science, Yunnan University of Chinese Medicine , Kunming, Yunnan , China
| | - Shou-Zheng Tian
- Yunnan Key Laboratory of Molecular Biology of Chinese Medicine, Faculty of Basic Medical Science, Yunnan University of Chinese Medicine , Kunming, Yunnan , China
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Liu TH, Zhang XM, Tian SZ, Chen LG, Yuan JL. Bioinformatics analysis of endophytic bacteria related to berberine in the Chinese medicinal plant Coptis teeta Wall. 3 Biotech 2020; 10:96. [PMID: 32099737 DOI: 10.1007/s13205-020-2084-y] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2019] [Accepted: 01/20/2020] [Indexed: 02/03/2023] Open
Abstract
Endophytic microorganisms absorb nutrients and prevent pathogen damage, supporting healthy plant growth. However, the relationship between endophytic bacteria and berberine synthesis in the medicinal plant Coptis teeta Wall. remains unclear. Herein, we explored the community composition of endophytic bacteria related to berberine in roots, stems, and leaves of wild-type and cultivated C. teeta. Endophytic bacterial communities were analyzed by 16S rRNA sequencing, and berberine content in roots was analyzed by high-performance liquid chromatography. Proteobacteria, Actinobacteria, and Bacteroidetes were the major phyla, and Mycobacterium, Salmonella, Nocardioides, Burkholderia-Paraburkholderia, and Rhizobium were the dominant genera in root, stem, and leaf tissues. Root berberine content was positively correlated with total N, total P, total K, and available K in rhizosphere soil. In addition, root berberine content was positively correlated with Microbacterium and norank_f_7B-8, whereas soil total K was positively correlated with Microbacterium and Burkholderia-Paraburkholderia in roots. Our results demonstrated a clear correlation between dominant endophytic bacteria and berberine synthesis in C. teeta. The findings are useful for the promotion of berberine production in C. teeta via manipulation of endophytic bacteria.
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Affiliation(s)
- Tian-Hao Liu
- 1Yunnan Key Laboratory of Molecular Biology of Chinese Medicine, Faculty of Basic Medical Science, Yunnan University of Chinese Medicine, Chenggong District, No. 1076 Yuhua Road, Kunming, 650500 Yunnan China
- 2College of Chinese Medicine, Jinan University, Guangzhou, Guangdong China
| | - Xiao-Mei Zhang
- 1Yunnan Key Laboratory of Molecular Biology of Chinese Medicine, Faculty of Basic Medical Science, Yunnan University of Chinese Medicine, Chenggong District, No. 1076 Yuhua Road, Kunming, 650500 Yunnan China
| | - Shou-Zheng Tian
- 1Yunnan Key Laboratory of Molecular Biology of Chinese Medicine, Faculty of Basic Medical Science, Yunnan University of Chinese Medicine, Chenggong District, No. 1076 Yuhua Road, Kunming, 650500 Yunnan China
| | - Li-Guo Chen
- 2College of Chinese Medicine, Jinan University, Guangzhou, Guangdong China
| | - Jia-Li Yuan
- 1Yunnan Key Laboratory of Molecular Biology of Chinese Medicine, Faculty of Basic Medical Science, Yunnan University of Chinese Medicine, Chenggong District, No. 1076 Yuhua Road, Kunming, 650500 Yunnan China
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11
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Liu YQ, Ma K, Liu TH. [Grasp the pulse of the times and promote the development of pain discipline in an all-round way]. Zhonghua Yi Xue Za Zhi 2020; 100:7-8. [PMID: 31914551 DOI: 10.3760/cma.j.issn.0376-2491.2020.01.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Y Q Liu
- Department of Algology, Beijing Tiantan Hospital Affiliated to Capital Medical University, Beijing 100070, China
| | - K Ma
- Department of Algology, Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200092, China
| | - T H Liu
- Department of Algology, Sichuan Province Yibin City Lizhuang Tongji Hospital, Yibin 644000, China
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12
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Chu JS, Liu TH, Zang YZ, Wang KL, Ma HZ, Han CL, Zhao XB, Liu YP, Xia XT, Meng FG. [Statistical parametric mapping analysis of 18F-FDG PET in Parkinson's disease with mild cognitive impairment]. Zhonghua Yi Xue Za Zhi 2018; 98:2632-2635. [PMID: 30220149 DOI: 10.3760/cma.j.issn.0376-2491.2018.33.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Objective: To investigate the characteristics of cerebral metabolism associated with mild cognitive impairment (MCI) Parkinson's disease (PD), cognitive normal PD and normal control to find a PET biomarker for the diagnose and estimate of PD-MCI. Methods: Forty-seven patients diagnosed with PD (included 15 with mild cognitive impairment) and 20 control subjects were enrolled. All the subjects were evaluated with FDG-PET and clinical scale. The statistical parametric mapping (SPM) were analyzed to determine metabolic patterns that may be useful in differentiating between the three groups. Results: SPM analysis showed that significant hypometabolism were observed in both side of front lobe, parietal lobe, left temporal lobe and left occipital lobe; in the contrast, the relative hypermetabolism had been observed in the cerebellum, vermis, hippocampus and supplement motor area (SMA) in patients with PD-MCI. PD without MCI showed hypometabolism in both side of front lob, caudate and putamen. PD-MCI showed that the significant hypermetabolism were in the insular and cerebellum while hypometabolism were in the both side of occipital compared to PD without MCI. Conclusion: A voxel-by-voxel based SPM method i. e. SPM8 analysis by PET scan is an effective way to analysis the FDG uptake pattern of PD patients. The hypermetabolism in the insula and cerebellum and hypometabolism in the both side of occipital may be a biomarker for make a diagnosis of PD-MCI.
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Affiliation(s)
- J S Chu
- Department of Neurosurgery, Beijing Tiantan Hospital, Beijing Neurosurgical Institute, Capital Medical University, Beijing 100050, China
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13
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Zhou Z, Liu TH, Zhang ZK. Zinc-responsive exfoliative dermatitis in a 17-year-old girl with delayed puberty. Clin Exp Dermatol 2018; 43:746-748. [PMID: 29740861 DOI: 10.1111/ced.13564] [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] [Accepted: 09/06/2017] [Indexed: 11/29/2022]
Affiliation(s)
- Z Zhou
- Department of Dermatology, Chengdu Military General Hospital, Chengdu, Sichuan Province, China
| | - T H Liu
- Department of Dermatology, Chengdu Military General Hospital, Chengdu, Sichuan Province, China
| | - Z K Zhang
- Department of Dermatology, Chengdu Military General Hospital, Chengdu, Sichuan Province, China
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14
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Liu TH, Lee WJ. Elderly Female with Low Abdominal Pain. HONG KONG J EMERG ME 2017. [DOI: 10.1177/102490791702400203] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Affiliation(s)
- TH Liu
- E-Da Hospital, Department of Emergency Medicine, I-Shou University, Kaohsiung, Taiwan
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15
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Liu TH, Zheng F, Cai MY, Guo L, Lin HX, Chen JW, Liao YJ, Kung HF, Zeng YX, Xie D. The putative tumor activator ARHGEF3 promotes nasopharyngeal carcinoma cell pathogenesis by inhibiting cellular apoptosis. Oncotarget 2017; 7:25836-48. [PMID: 27028992 PMCID: PMC5041948 DOI: 10.18632/oncotarget.8283] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2015] [Accepted: 03/06/2016] [Indexed: 11/28/2022] Open
Abstract
Nasopharyngeal carcinoma (NPC) is one of the most prevalent forms of highly invasive malignancy in Southern China and Southeast Asia. The pathogenesis of NPC is a multistep process driven by the acquisition of numerous genetic abnormalities. We investigated the potential oncogenic role of the Rho-guanine nucleotide exchange factor 3 gene, ARHGEF3, in NPC pathogenesis. Expression levels of ARHGEF3 were frequently up-regulated in NPC cell lines and tissues. In a large cohort of clinical NPC tissues high expression of ARHGEF3 was positively associated with an increased T status, distant metastasis, and a more advanced clinical stage (P < 0.05). Survival analysis revealed that ARHGEF3 expression was a significant and independent prognosis factor for NPC patients. In NPC cell lines, knockdown of ARHGEF3 was sufficient to inhibit cell growth, motility, and invasion in vitro, whereas ectopic overexpression of ARHGEF3 substantially enhanced NPC cells tumorigenesis and metastasis in vivo. Depletion of ARHGEF3 in NPC cells dramatically promoted caspase-3 induced apoptosis and an anti-apoptosis factor, BIRC8, was identified as a critical downstream target of the ARHGEF3. Our findings suggest that increased expression of ARHGEF3 plays a critical oncogenic role in NPC pathogenesis by preventing cell apoptosis through the up-regulation of BIRC8, and ARHGEF3 might be employed as a novel prognostic marker and effective therapeutic target for human NPC.
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Affiliation(s)
- Tian-Hao Liu
- Sun Yat-Sen University Cancer Center, The State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, China.,Department of Oncology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, Guangdong, China
| | - Fang Zheng
- Sun Yat-Sen University Cancer Center, The State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, China.,Medical Research Center, Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Mu-Yan Cai
- Sun Yat-Sen University Cancer Center, The State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, China.,Department of Pathology, Sun Yat-Sen University Cancer Center, Guangzhou, China
| | - Lin Guo
- Sun Yat-Sen University Cancer Center, The State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, China.,Department of Nasopharyngeal Cancer, Sun Yat-Sen University Cancer Center, Guangzhou, China
| | - Huan-Xin Lin
- Sun Yat-Sen University Cancer Center, The State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, China
| | - Jie-Wei Chen
- Sun Yat-Sen University Cancer Center, The State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, China.,Department of Pathology, Sun Yat-Sen University Cancer Center, Guangzhou, China
| | - Yi-Ji Liao
- Sun Yat-Sen University Cancer Center, The State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, China
| | - Hsiang-Fu Kung
- Sun Yat-Sen University Cancer Center, The State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, China
| | - Yi-Xin Zeng
- Sun Yat-Sen University Cancer Center, The State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, China
| | - Dan Xie
- Sun Yat-Sen University Cancer Center, The State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, China.,Department of Pathology, Sun Yat-Sen University Cancer Center, Guangzhou, China
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16
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Guo B, Li JB, Wang W, Xu M, Shao Q, Liu TH. [A comparison of dosimetric variance for external-beam partial breast irradiation using three-dimensional and four-dimensional computed tomography]. Zhonghua Zhong Liu Za Zhi 2017; 39:303-307. [PMID: 28550674 DOI: 10.3760/cma.j.issn.0253-3766.2017.04.014] [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: 11/05/2022]
Abstract
Objective: To investigate the potential dosimetric benefits of four-dimensional computed tomography (4DCT) compared to three-dimensional CT (3DCT) in the planning of radiotherapy for external-beam partial breast irradiation (EB-PBI). Methods: Three-DCT and 4DCT scan sets were acquired for 20 patients who underwent EB-PBI. For each patient a conventional 3D conformal plan (3D-CRT) was generated based on end-inhalation phase (EI). The treatment plan based on the 4DCT EI phase images was copied and applied to the end-exhalation phase (EE) and 3DCT images (defined as EB-PBI(EI), EB-PBI(EE), EB-PBI(3D), respectively). Results: The median volumes of the tumour bed based on 3DCT, EI and EE were 20.99 cm(3,) 19.28 cm(3,) and 18.78 cm(3,) respectively. The tumour bed volume based on 3DCT was significantly greater than that of EI and EE volumes (P<0.05). The planning target volumes (PTV) coverage of EB-PBI(3D), EB-PBI(EI) and EB-PBI(EE) were 96.85%, 97.51%, 97.03%, respectively. The planning target volume (PTV) coverage of EB-PBI(3D) was significantly less than that of EB-PBI(EI) and EB-PBI(EE) (P<0.05). The median homogeneity indexs (HI) based on 3DCT, EI and EE were 0.13, 0.13, 0.13, respectively. The median conformal indexs (CI) based on 3DCT, EI and EE were 0.68, 0.69, 0.68, respectively. The median mean doses (D(mean)) based on 3DCT, EI and EE were 36.20 Gy, 36.20 Gy, 36.22 Gy, respectively. However there were no significant differences in the homogeneity index, conformity index and the mean dose of PTV between the three treatment plans (P>0.05). The EB-PBI(3D) plan resulted in the largest organs at risk dose (P<0.05). Conclusion: There was a significant benefit when using 4DCT to plan 3D-CRT for EB-PBI with regard to reduced non-target organ exposure, and might result in poor dose coverage when the PTV is determined using 3DCT.
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Affiliation(s)
- B Guo
- Department of Radiation Oncology, Shandong Cancer Hospital, Jinan 250117, China
| | - J B Li
- Department of Radiation Oncology, Shandong Cancer Hospital, Jinan 250117, China
| | - W Wang
- Department of Radiation Oncology, Shandong Cancer Hospital, Jinan 250117, China
| | - M Xu
- Department of Radiation Oncology, Shandong Cancer Hospital, Jinan 250117, China
| | - Q Shao
- Department of Radiation Oncology, Shandong Cancer Hospital, Jinan 250117, China
| | - T H Liu
- Department of Radiophysics, Shandong Cancer Hospital, Jinan 250117, China
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17
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Liang XL, Wang LL, Liang ZY, Liu TH. [Research progress on proteasome activator REGγ in tumors]. Zhonghua Bing Li Xue Za Zhi 2017; 46:139-140. [PMID: 28173684 DOI: 10.3760/cma.j.issn.0529-5807.2017.02.023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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18
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Qing XR, Wan CC, Shang XJ, Li HG, Xiong CL, Zhan XX, Mo DS, Cai HC, Zhang HP, Guan HT, Kong XB, Chen YP, Liu TH, Hao BJ, Zong SY. Relative contributions of testosterone deficiency and metabolism syndrome at the risk of reduced quality of life: A cross-sectional study among Chinese mid-aged and elderly men. Andrologia 2016; 49. [PMID: 28026037 DOI: 10.1111/and.12736] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/15/2016] [Indexed: 12/12/2022] Open
Abstract
Testosterone deficiency and metabolism syndrome (MetS) are universal among ageing males, and they have been suggested responsible for poorer quality of life (QoL). We aimed to evaluate the relative contributions of reproductive hormones and components of MetS at the risk of reduced QoL among Chinese mid-aged and elderly men. A cross-sectional study recruited 2,364 males aged 40-79 years, and 2,165 was included for analysis eventually. The Chinese version of ageing male symptoms scale, 36-item Short Form and Beck Depression Inventory were applied to assess QoL. Bivariate correlation analysis and multiple linear regression analysis were used to assess the relative contributions of reproductive hormones and components of MetS at the risk of reduced QoL. Testosterone deficiency and MetS contributed to poorer QoL, of which higher fasting blood glucose made the primary contribution, lower total testosterone mainly contributed to poorer physical functioning.
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Affiliation(s)
- X R Qing
- Department of Andrology, Jingling Hospital, School of Medicine, Nanjing University, Nanjing, China.,Family Planning Research Institute/Center of Reproductive Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - C C Wan
- Clinical laboratory, People's hospital of Jinhu County, Huai'an, China
| | - X J Shang
- Department of Andrology, Jingling Hospital, School of Medicine, Nanjing University, Nanjing, China
| | - H G Li
- Family Planning Research Institute/Center of Reproductive Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - C L Xiong
- Family Planning Research Institute/Center of Reproductive Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - X X Zhan
- Center of Reproductive Medicine, Xi'an No. 4 hospital/GuangRen hospital of Xi'an Jiaotong University, Xi'an, China
| | - D S Mo
- Department of Andrology, Jingling Hospital, School of Medicine, Nanjing University, Nanjing, China
| | - H C Cai
- Department of Andrology, Jingling Hospital, School of Medicine, Nanjing University, Nanjing, China
| | - H P Zhang
- Family Planning Research Institute/Center of Reproductive Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - H T Guan
- Family Planning Research Institute/Center of Reproductive Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - X B Kong
- Center of Reproductive Medicine, The first affiliated hospital of Wenzhou Medical University, Wenzhou, China
| | - Y P Chen
- Family Planning Research Institute/Center of Reproductive Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - T H Liu
- Family Planning Research Institute/Center of Reproductive Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - B J Hao
- Department of Urology, People's hospital of Jinhu County, Huai'an, China
| | - S Y Zong
- Clinical laboratory, People's hospital of Jinhu County, Huai'an, China
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19
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Chen XY, Liu J, Zhang CD, Li YF, Liu TH, Wang L, Yu QY, Zhang YH, Lu C, Pan MH. The silkworm GSTe4 is sensitive to phoxim and protects HEK293 cells against UV-induced cell apoptosis. Bull Entomol Res 2015; 105:399-407. [PMID: 25850432 DOI: 10.1017/s0007485315000279] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Glutathione S-transferases (GSTs, EC 2.5.1.18) are a family of super enzymes with multiple functions that play a major role in the detoxification of endogenous and xenobiotic compounds. In our previous study, we have predicted 23 putative cytosolic GSTs in the silkworm genome using bioinformatic methods. In this study, we cloned and studied the insect-specific epsilon-class GST gene GSTe4 from the silkworm, Bombyx mori. The recombinant BmGSTe4 (Bac-BmGSTe4) was overexpressed in SF-9 cell lines, and it was found to have effective GST activity. We also found that the expression of BmGSTe4 was especially down-regulated after the silkworms were fumigated with or ingested phoxim. Moreover, BmGSTe4 protected HEK293 cells against UV-induced cell apoptosis. These results demonstrated that BmGSTe4 has GST activity, is sensitive to phoxim, and plays a role in inhibition of UV-induced cell apoptosis.
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Affiliation(s)
- X Y Chen
- State Key Laboratory of Silkworm Genome Biology,Southwest University,Chongqing 400716,China
| | - J Liu
- State Key Laboratory of Silkworm Genome Biology,Southwest University,Chongqing 400716,China
| | - C D Zhang
- State Key Laboratory of Silkworm Genome Biology,Southwest University,Chongqing 400716,China
| | - Y F Li
- State Key Laboratory of Silkworm Genome Biology,Southwest University,Chongqing 400716,China
| | - T H Liu
- State Key Laboratory of Silkworm Genome Biology,Southwest University,Chongqing 400716,China
| | - L Wang
- State Key Laboratory of Silkworm Genome Biology,Southwest University,Chongqing 400716,China
| | - Q Y Yu
- The Institute of Agricultural and Life Sciences,Chongqing University,Chongqing 400044,China
| | - Y H Zhang
- The Sericultural Research Institute,Sichuan Academy of Agricultural Science,Sichuan 637000,China
| | - C Lu
- State Key Laboratory of Silkworm Genome Biology,Southwest University,Chongqing 400716,China
| | - M H Pan
- State Key Laboratory of Silkworm Genome Biology,Southwest University,Chongqing 400716,China
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20
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Zheng F, Liao YJ, Cai MY, Liu TH, Chen SP, Wu PH, Wu L, Bian XW, Guan XY, Zeng YX, Yuan YF, Kung HF, Xie D. Systemic delivery of microRNA-101 potently inhibits hepatocellular carcinoma in vivo by repressing multiple targets. PLoS Genet 2015; 11:e1004873. [PMID: 25693145 PMCID: PMC4334495 DOI: 10.1371/journal.pgen.1004873] [Citation(s) in RCA: 79] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2014] [Accepted: 11/04/2014] [Indexed: 12/31/2022] Open
Abstract
Targeted therapy based on adjustment of microRNA (miRNA)s activity takes great promise due to the ability of these small RNAs to modulate cellular behavior. However, the efficacy of miR-101 replacement therapy to hepatocellular carcinoma (HCC) remains unclear. In the current study, we first observed that plasma levels of miR-101 were significantly lower in distant metastatic HCC patients than in HCCs without distant metastasis, and down-regulation of plasma miR-101 predicted a worse disease-free survival (DFS, P<0.05). In an animal model of HCC, we demonstrated that systemic delivery of lentivirus-mediated miR-101 abrogated HCC growth in the liver, intrahepatic metastasis and distant metastasis to the lung and to the mediastinum, resulting in a dramatic suppression of HCC development and metastasis in mice without toxicity and extending life expectancy. Furthermore, enforced overexpression of miR-101 in HCC cells not only decreased EZH2, COX2 and STMN1, but also directly down-regulated a novel target ROCK2, inhibited Rho/Rac GTPase activation, and blocked HCC cells epithelial-mesenchymal transition (EMT) and angiogenesis, inducing a strong abrogation of HCC tumorigenesis and aggressiveness both in vitro and in vivo. These results provide proof-of-concept support for systemic delivery of lentivirus-mediated miR-101 as a powerful anti-HCC therapeutic modality by repressing multiple molecular targets.
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Affiliation(s)
- Fang Zheng
- The State Key Laboratory of Oncology in South China, Sun Yat-Sen University Cancer Center, Collaborative Innovation Center for Cancer Medicine, Guangzhou, China
- Medical Research Center, Sun Yat-Sen Memorial Hospital, Guangzhou, China
| | - Yi-Ji Liao
- The State Key Laboratory of Oncology in South China, Sun Yat-Sen University Cancer Center, Collaborative Innovation Center for Cancer Medicine, Guangzhou, China
| | - Mu-Yan Cai
- The State Key Laboratory of Oncology in South China, Sun Yat-Sen University Cancer Center, Collaborative Innovation Center for Cancer Medicine, Guangzhou, China
- Department of Pathology, Sun Yat-Sen University Cancer Center, Guangzhou, China
| | - Tian-Hao Liu
- The State Key Laboratory of Oncology in South China, Sun Yat-Sen University Cancer Center, Collaborative Innovation Center for Cancer Medicine, Guangzhou, China
- Medical Research Center, Sun Yat-Sen Memorial Hospital, Guangzhou, China
| | - Shu-Peng Chen
- The State Key Laboratory of Oncology in South China, Sun Yat-Sen University Cancer Center, Collaborative Innovation Center for Cancer Medicine, Guangzhou, China
| | - Pei-Hong Wu
- The State Key Laboratory of Oncology in South China, Sun Yat-Sen University Cancer Center, Collaborative Innovation Center for Cancer Medicine, Guangzhou, China
- Tumor Interventional Therapy, Sun Yat-Sen University Cancer Center, Guangzhou, China
- Hepatobiliary Oncology, Sun Yat-Sen University Cancer Center, Guangzhou, China
| | - Long Wu
- Department of Clinical Oncology, People’s Hospital, Wuhan University, Wuhan, China
| | - Xiu-Wu Bian
- Institute of Pathology and Southwest Cancer Center, Southwest Hospital, Third Military Medical University, Chongqing, China
| | - Xin-Yuan Guan
- The State Key Laboratory of Oncology in South China, Sun Yat-Sen University Cancer Center, Collaborative Innovation Center for Cancer Medicine, Guangzhou, China
- Department of Clinical Oncology, the University of Hong Kong, Hong Kong, China
| | - Yi-Xin Zeng
- The State Key Laboratory of Oncology in South China, Sun Yat-Sen University Cancer Center, Collaborative Innovation Center for Cancer Medicine, Guangzhou, China
| | - Yun-Fei Yuan
- The State Key Laboratory of Oncology in South China, Sun Yat-Sen University Cancer Center, Collaborative Innovation Center for Cancer Medicine, Guangzhou, China
- Hepatobiliary Oncology, Sun Yat-Sen University Cancer Center, Guangzhou, China
| | - Hsiang-Fu Kung
- The State Key Laboratory of Oncology in South China, Sun Yat-Sen University Cancer Center, Collaborative Innovation Center for Cancer Medicine, Guangzhou, China
- State Key Laboratory of Oncology in South China, the Chinese University of Hong Kong, Hong Kong, China
| | - Dan Xie
- The State Key Laboratory of Oncology in South China, Sun Yat-Sen University Cancer Center, Collaborative Innovation Center for Cancer Medicine, Guangzhou, China
- Department of Pathology, Sun Yat-Sen University Cancer Center, Guangzhou, China
- * E-mail:
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Abstract
Erosive pustular dermatosis (EPD) of the leg is an unusual form of amicrobial pustulosis, which typically affects elderly patients with chronic venous insufficiency. We report a patient who presented with painful erythema, crusted erosions and pustules on her right lower leg. Histology showed a dermal infiltration made up predominantly of neutrophils. Bacteria were isolated from the lesions. The condition was initially diagnosed as cellulitis, but antibiotic treatment was unsuccessful. After the correct diagnosis was made, complete resolution was obtained with betamethasone 0.05%.
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Affiliation(s)
- Z Zhou
- Department of Dermatology, Chengdu Military General Hospital, Chengdu, Sichuan Province, China
| | - Z K Zhang
- Department of Dermatology, Chengdu Military General Hospital, Chengdu, Sichuan Province, China
| | - T H Liu
- Department of Dermatology, Chengdu Military General Hospital, Chengdu, Sichuan Province, China
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22
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Sun CJ, Wang CE, Wang YH, Xie LL, Liu TH, Ren WC. Transcatheter arterial embolization of acute gastrointestinal tumor hemorrhage with Onyx. Indian J Cancer 2014; 51 Suppl 2:e56-9. [DOI: 10.4103/0019-509x.151988] [Citation(s) in RCA: 5] [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: 11/04/2022]
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Schulze M, Calliess T, Gietzelt M, Wolf KH, Liu TH, Seehaus F, Bocklage R, Windhagen H, Marschollek M. Development and clinical validation of an unobtrusive ambulatory knee function monitoring system with inertial 9DoF sensors. Annu Int Conf IEEE Eng Med Biol Soc 2013; 2012:1968-71. [PMID: 23366302 DOI: 10.1109/embc.2012.6346341] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Patients suffering from end-stage knee osteoarthritis are often treated with total knee arthroplasty, improving their functional mobility. A number of patients, however, report continued difficulty with stair ascent and descent or sportive activity after surgery and are not completely satisfied with the outcome. State-of-the-art analyses to evaluate the outcome and mobility after knee replacement are conducted under supervised settings in specialized gait labs and thus can only reflect a short period of time. A number of external factors may lead to artificial gait patterns in patients. Moreover, clinically relevant situations are difficult to simulate in a stationary gait lab. In contrast to this, inertial sensors may be used additionally for unobtrusive gait monitoring. However, recent notable approaches found in literature concerning knee function analysis have so far not been applied in a clinical context and have therefore not yet been validated in a clinical setting. The aim of this paper is to present a system for unsupervised long-term monitoring of human gait with a focus on knee joint function, which is applicable in patients' everyday lives and to report on the validation of this system gathered during walking with reference to state-of-the-art gait lab data using a vision system (VICON Motion System). The system KINEMATICWEAR - developed in close collaboration of computer scientists and physicians performing knee arthroplasty - consists of two sensor nodes with combined tri-axial accelerometer, gyroscope and magnetometer to be worn under normal trousers. Reliability of the system is shown in the results. An overall correlation of 0.99 (with an overall RMSE of 2.72) compared to the state-of-the-art reference system indicates a sound quality and a high degree of correspondence. KINEMATICWEAR enables ambulatory, unconstrained measurements of knee function outside a supervised lab inspection.
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Affiliation(s)
- M Schulze
- Peter L. Reichertz Institute for Medical Informatics, Carl-Neuberg-Str. 1, 30625 Hannover, Germany.
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Zheng F, Liao YJ, Cai MY, Liu YH, Liu TH, Chen SP, Bian XW, Guan XY, Lin MC, Zeng YX, Kung HF, Xie D. The putative tumour suppressor microRNA-124 modulates hepatocellular carcinoma cell aggressiveness by repressing ROCK2 and EZH2. Gut 2012; 61:278-89. [PMID: 21672940 DOI: 10.1136/gut.2011.239145] [Citation(s) in RCA: 311] [Impact Index Per Article: 25.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
BACKGROUND Recent profile studies of microRNA (miRNA) expression have documented a deregulation of miRNA (miR-124) in hepatocellular carcinoma (HCC). OBJECTIVE To determine the status of miR-124 expression and its underlying mechanisms in the pathogenesis of HCC. METHODS The expression levels of miR-124 were first examined in HCC cell lines and tumour tissues by real-time PCR. The in vitro and in vivo functional effect of miR-124 was examined further. A luciferase reporter assay was conducted to confirm target associations. RESULTS The expression levels of miR-124 were frequently reduced in HCC cells and tissues, and low-level expression of miR-124 was significantly associated with a more aggressive and/or poor prognostic phenotype of patients with HCC (p<0.05). In HCC cell lines, stable overexpression of miR-124 was sufficient to inhibit cell motility and invasion in vitro, and suppress intrahepatic and pulmonary metastasis in vivo. In addition, ectopic overexpression of miR-124 in HCC cells inhibited epithelial-mesenchymal cell transition, formation of stress fibres, filopodia and lamellipodia. Further studies showed that miR-124 could directly target the 3'-untranslated region (3'-UTR) of both ROCK2 and EZH2 mRNAs, and suppress their mRNA and protein expressions. These findings suggest that miR-124 plays a critical role in regulating cytoskeletal events and epithelial-mesenchymal cell transition and, ultimately, inhibits the invasive and/or metastatic potential of HCC, probably by its direct target on ROCK2 and EZH2 genes. These results provide functional and mechanistic links between the tumour suppressor miRNA-124 and the two oncogenes ROCK2 and EZH2 on the aggressive nature of HCC. CONCLUSION These data highlight an important role for miR-124 in the regulation of invasion and metastasis in the molecular aetiology of HCC, and suggest a potential application of miR-124 in prognosis prediction and cancer treatment.
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Affiliation(s)
- Fang Zheng
- The State Key Laboratory of Oncology in South China, Sun Yat-Sen University, Guangzhou, China
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Xiao ZY, Wu W, Eagleton N, Chen HQ, Shao J, Teng H, Liu TH, Jiang ZM, Yao HR. Silencing Fas-associated phosphatase 1 expression enhances efficiency of chemotherapy for colon carcinoma with oxaliplatin. World J Gastroenterol 2010; 16:112-8. [PMID: 20039457 PMCID: PMC2799906 DOI: 10.3748/wjg.v16.i1.112] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
AIM: To investigate whether silencing Fas-associated phosphatase 1 (FAP-1) expression enhances the efficiency of chemotherapy for colon carcinoma with oxaliplatin.
METHODS: Expression of FAP-1 in mRNA and protein was detected by reverse transcription polymerase chain reaction (RT-PCR) and flow cytometry. Small interfering RNA (siRNA) was designed according to the FAP-1 mRNA sequence. Cell proliferation was evaluated by methyl thiazolyl tetrazolium (MTT) assay. Anenxin V- and propidine iodine (PI) were assayed by flow cytometry for the detection of apoptosis.
RESULTS: The expression of FAP-1 was increased in SW480 cells after chemotherapy with oxaliplatin. Transfection of FAP-1 siRNA into SW480 cells silenced the expression of FAP-1 and consequently abolished the inhibitory function of Fas/FasL-mediated apoptosis pathway, thus increasing the efficacy of chemotherapy for colon carcinoma with oxaliplatin.
CONCLUSION: RNA interference combined with conventional chemotherapy is more effective against colon cancer.
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Shi XH, Liang ZY, Ren XY, Liu TH. Combined silencing of K-ras and Akt2 oncogenes achieves synergistic effects in inhibiting pancreatic cancer cell growth in vitro and in vivo. Cancer Gene Ther 2008; 16:227-36. [PMID: 18949011 DOI: 10.1038/cgt.2008.82] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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Abstract
This paper describes techniques developed for conflict detection during plan integration. Agents' intensions are represented with intended goal structure (IGS) and the E-PERT diagrams. Conflicts are classified as goal, plan, and belief conflicts. Before integrating individual plans and detecting plan conflicts, agents first detect and eliminate their goal conflicts by exchanging their IGS. Plan integration is done through merging individual E-PERT diagrams. Project estimation and review technique (PERT) diagrams have been used extensively in the systems analysis area since the 1980s to provide a global consistent view of parallel activities within a project. We extended the PERT diagrams for use in the plan integration activity within multi-agent systems (MAS). The E-PERT diagram contributes to maintain traceable temporal relations among agents' local scheduled actions. Combined with pattern matching, plan conflicts due to resource sharing, or conflicting conditions (i.e., postconditions of one action disabling preconditions of another action) can be detected. The conflict detection techniques are implemented in a sensible agent testbed to promote deployment and performance analysis.
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Affiliation(s)
- K S Barber
- Dept. of Electr. & Comput. Eng., Texas Univ., Austin, TX
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Lin XG, Huang KH, Xie DR, Liu TH. [Postoperative abdominal endogenic field hyperthermia combined with FOLFOX regimen in the treatment of 68 cases of advanced gastric cancer]. Nan Fang Yi Ke Da Xue Xue Bao 2007; 27:1501-1503. [PMID: 17959524] [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: 05/25/2023]
Abstract
OBJECTIVE To assess the therapeutic efficacy and adverse effects of endogenetic field hyperthermia (EFH) in combination with L-OHP /LV / 5-FU in the treatment of advanced gastric cancer. METHODS This study included 147 surgical patients with stage II-IV gastric cancer, who received postoperative chemotherapy with FOLFOX (L-OHP 85 mg /m square, 3 h intravenous infusion, followed by infusion of LV at 200 mg /m square in 2 h, intravenous injection of 5-Fu at 400 mg /m square, and intravenous infusion of 5-FU at 3000 mg /m square in 48 h). Eight treatment cycles (each lasting for 14 days) were administered. In 68 cases randomly selected from the cohort, EFH was performed on the first and third days (treatment group), but not in the other 79 cases (control group). RESULTS The response rate was 68.4% in the treatment group and 36.4% in the control group, showing significant difference between them (P<0.05). The 1-year survival rate was 88.2% in the treatment group, similar to the rate of 81.0% in the control group (P< 0.05), but the 3, 5-year survival rates in treatment group (67.6% and 30.9%) was significantly higher than those in the control group (47.6% and 15.4%, P<0.05). The adverse effects were similar between the two groups. CONCLUSION EFH combined with the chemotherapeutic regimen FOLFOX might improve the therapeutic effect of stage II-IV gastric cancer without obviously increasing the adverse effects.
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Affiliation(s)
- Xian-Gan Lin
- Department of Oncology, Second Affiliated Hospital of Sun Yat-sen University, Guangzhou 510120, China.
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Abstract
Caecal volvulus is an infrequently encountered clinical condition and an uncommon cause of intestinal obstruction. Patients with this condition may present with highly variable clinical presentations ranging from intermittent, self limiting abdominal pain to acute abdominal pain associated with intestinal strangulation and sepsis. Lack of familiarity with this condition is a factor contributing to diagnostic and treatment delays. The objective of this review is to promote clinicians' awareness of this disease through patient case illustration, discussion of disease pathogenesis, clinical features, and management strategies.
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Affiliation(s)
- E T Consorti
- East Bay Surgery Program, University of California San Francisco, Oakland, California 94602-1018, USA
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Lin JD, Chiou WK, Weng HF, Fang JT, Liu TH. Application of three-dimensional body scanner: observation of prevalence of metabolic syndrome. Clin Nutr 2004; 23:1313-23. [PMID: 15556253 DOI: 10.1016/j.clnu.2004.04.005] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2003] [Accepted: 04/06/2004] [Indexed: 11/29/2022]
Abstract
BACKGROUND AND AIMS This retrospective cross-sectional study correlates blood pressure, blood glucose, lipid and uric acid levels with anthropometric measurements. METHODS A total of 3975 visitors to the Department of Health Management were randomly selected to participate in this cross-sectional study. Whole body three-dimensional (3-D) laser scans were used to obtain anthropometric measurements. A health index (HI) was also designed based on anthropometric parameters. Subjects were defined as having metabolic syndrome when three of the following criteria were met: obesity (BMI of at least 30 kg/m(2); or a WHR of over 0.9 for males and 0.85 for females); triglyceride of at least 150 mg/dl; high-density lipoprotein (HDL)-cholesterol below 35 mg/dl for males and 39 mg/dl for females; fasting sugar levels of at least 110 mg/dl and hypertension. RESULTS Of 3975 subjects, 341 (8.6%) met the criteria for diabetes mellitus (DM); of these, 32.8% were diagnosed with hypertension. This proportion exceeded 18% of the subjects had normal glucose levels. Of the 3975 subjects, 658 (16.6%) met the criteria for metabolic syndrome. Proportionally, more male subjects than female subjects were diagnosed with metabolic syndrome (18.5% vs 14.7%). Of these, central obesity, elevated triglyceride and low HDL-cholesterol were the main factors in men, while fasting glucose, hypertension and central obesity were the main factors in women. This investigation found that larger proportions of subjects with impaired glucose tolerance (41.1%) and DM (64.2%) than of subjects with normal glucose subjects, suffered from metabolic syndrome (9.5%). CONCLUSIONS 3-D body scanning is useful in correlating pertinent factors with metabolic syndrome, these factors include central obesity, hyperglycemia, dyslipidemia, hyperuricemia and hypertension.
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Affiliation(s)
- J D Lin
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Chang Gung Memorial Hospital, Kweishan, Taoyuan Hsien, Taiwan, ROC.
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Lin XG, Xie DR, Yao HR, Li ZH, Jiang ZM, Liu TH. [Clinical study of comparison of CAF regimen and TP regimen in treatment of advanced breast cancer]. Ai Zheng 2003; 22:411-4. [PMID: 12704001] [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: 03/01/2023]
Abstract
BACKGROUND & OBJECTIVE CAF regimen [Cytoxan+ Adriamycin+5-fluorouracil (5-FU)] and TP regimen (paclitaxel+cisplatin) were effective to advanced breast cancer (ABC). But TP regimen was expensive and the administration was complicated. So the authors evaluated the clinical results of CAF and TP regimens. METHODS A total of 117 ABC patients proved pathologically were divided into CAF and TP groups. Patients in both groups were well matched with baseline disease characteristics (P >0.05). CAF group (66 cases):received Cytoxan 600 mg/m(2), i.v. drip d(1), Adriamycin 60 mg/m(2) i.v. drip d(1) and 5-FU 600 mg/m(2), i.v. drip d(1,8); TP group (51 cases): received paclitaxel 135 mg/m(2) by i.v. drip for 3 hours and cisplatin 60 mg/m(2), i.v. drip d(2-3) The treatments were repeated every 3 weeks. All patients received two cycles of the treatment at least. RESULTS In CAF group, the response rates (RR) of the initial treatment cases, the retreatment cases, and the whole cases were 54.8% (17/31), 31.4% (11/35), and 42.4% (28/66), respectively. The median time to progression (TTP) was 7.8 months (95%CI:5.3-10.8 months) and the median survival was 17.8 months (95%CI:13.3-22.5%). Whereas in TP group, the RR of the initial treatment cases, the retreatment cases, and the whole cases were 62.5%(15/24), 59.3%(16/27), and 60.8%(31/51), respectively. The median TTP and the median survival were 8.6 months (95%CI:6.5-12 months) and 19 months (95%CI:15-25.5 months), respectively. There were significant differences between two groups in the RR of retreatment cases and the whole cases (P< 0.05, Chi-square test). However, there was no significant difference in the RR of the initial treatment cases, the median TTP and median survival (for RR, P >0.05, Chi-square test; for median TTP and median survival, P >0.05, Log-rank test). Diarrhea was more serious in CAF group than in TP group; however, myodynia, peripheral neuropathy,and skin exanthem were more serious in TP group than in CAF group(P< 0.05,Wilcoxon rank sum test). There was no significant difference in the other side effects between the two groups. All side effects were tolerable. CONCLUSION CAF regimen was still a firstly selected regimen for the patients with ABC.
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Affiliation(s)
- Xian-Gan Lin
- Department of Oncology, The Second Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong, PR China
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Affiliation(s)
- T H Liu
- Department of Surgery, University of Texas-Houston Medical School and Lyndon B. Johnson Hospital, Houston, TX 77026-1967, USA.
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Liu TH, Chiou WK, Lin JD, Yu CY. Implementation of whole body scanner for determining somatotype index at Chang Gung Memorial Hospital. Chang Gung Med J 2001; 24:697-707. [PMID: 11820650] [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: 02/23/2023]
Abstract
BACKGROUND Body mass index (BMI) and waist-hip ratio (WHR) using 1-dimensional circumference data have been proven to be highly related to blood pressure and total cholesterol; these 2 indices have been widely used as health indicators in preventive diagnosis and health examination. Sophisticated software, which allows calculation of the triangular mesh related to the body surface in 3D space, is capable of computing the circumference, width, sectional surface, volume, and surface area of the body. METHODS Chang Gung Whole Body Scanner (CGWBS) was used to capture 3D whole body surface images. In this study, the human body was divided into 10 segments consisting of the head, breast, wrist, hip, upper arm, forearm, hand, thigh, calf, and foot. Five independent assessments were made on a total of 32 anthropometric sites, including 12 circumferences, 3 widths, 3 profile areas, 7 surface areas, and 7 volumes. In this study, the somatotype index (SI) was computed through anthropometric data after 1,323 subjects were investigated. Correlation analysis was used to describe the relationship between BMI, WHR, SI, and anthropometric data. One-way analysis of variance (ANOVA) and Duncan's multiple range tests were used to examine differences between examination variables across sex and SI groups. RESULTS This study found 4 somatotypes from anthropometric data. SI determined by CGWBS has better correlation with anthropometry than WHR or BMI. Of the 644 male subjects, 155 were in the ectomorph group, 232 in the semi-mesomorph group, 136 in the full-mesomorph group, and 121 in the endomorph group. Of the 679 female subjects, 160 were in the ectomorph group, 235 in the semi-mesomorph group, 168 in the full-mesomorph group, and 116 in the endomorph group. CONCLUSION The results show that SI has great potential to perform precise somatotype classification.
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Affiliation(s)
- T H Liu
- Department of Industrial Design, Chang Gung University, Taoyuan, Taiwan, ROC
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Liu TH, Consorti ET, Kawashima A, Tamm EP, Kwong KL, Gill BS, Sellin JH, Peden EK, Mercer DW. Patient evaluation and management with selective use of magnetic resonance cholangiography and endoscopic retrograde cholangiopancreatography before laparoscopic cholecystectomy. Ann Surg 2001; 234:33-40. [PMID: 11420481 PMCID: PMC1421945 DOI: 10.1097/00000658-200107000-00006] [Citation(s) in RCA: 83] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
OBJECTIVE To assess the utility of triage guidelines for patients with cholelithiasis and suspected choledocholithiasis, incorporating selective use of magnetic resonance cholangiography (MRC) and endoscopic retrograde cholangiopancreatography (ERCP) before laparoscopic cholecystectomy (LC). SUMMARY BACKGROUND DATA ERCP is the most frequently used modality for the diagnosis and resolution of choledocholithiasis before LC. MRC has recently emerged as an accurate, noninvasive modality for the detection of choledocholithiasis. However, useful strategies for implementing this diagnostic modality for patient evaluation before LC have not been investigated. METHODS During a 16-month period, the authors prospectively evaluated all patients before LC using triage guidelines incorporating patient information obtained from clinical evaluation, serum chemistry analysis, and abdominal ultrasonography. Patients were then assigned to one of four groups based on the level of suspicion for choledocholithiasis (group I, extremely high; group 2, high; group 3, moderate; group 4, low). Group 1 patients underwent ERCP and clearance of common bile duct stones; group 2 patients underwent MRC; group 3 patients underwent LC with intraoperative cholangiography; and group 4 patients underwent LC without intraoperative cholangiography. RESULTS Choledocholithiasis was detected in 43 of 440 patients (9.8%). The occurrence of choledocholithiasis among patients in the four groups were 92.6% (25/27), 32.4% (12/37), 3.8% (2/52), and 0.9% (3/324) for groups 1, 2, 3, and 4, respectively (P <.001). MRC was used for 8.4% (37/440) of patients. Patient triage resulted in the identification of common bile duct stones during preoperative ERCP in 92.3% (36/39) of the patients. Unsuspected common bile duct stones occurred in six patients (1.4%). CONCLUSIONS The probability of choledocholithiasis can be accurately assessed based on information obtained during the initial noninvasive evaluation. Stratification of risks for choledocholithiasis facilitates patient management with the most appropriate diagnostic studies and interventions, thereby improving patient care and resource utilization.
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Affiliation(s)
- T H Liu
- Department of Surgery, The University of Texas-Houston Medical School and Lyndon B. Johnson General Hospital, Houston, Texas, USA.
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Wang Y, Liu TH, Wang W, Wang BX. [Research on the transformation of ginsenoside Rg1 by intestinal flora]. Zhongguo Zhong Yao Za Zhi 2001; 26:188-90. [PMID: 12525040] [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: 02/28/2023]
Abstract
OBJECTIVE The decomposition of Ginsenoside Rg1(Rg1) by intestinal bacteria in rats or human was investigated both in vitro and in vivo. METHOD The decompositions were investigated by means of thin-layer chromatography and Electron spurt ion mass. RESULT It was found that Rg1 was converted into two metabolites [Rh1 and 20(S)-protopanaxatriol(20S-Ppt)] by human intestinal bacteria in vitro, while three compounds [Rh1, F1, and 20(S)-Ppt] were detected in rat intestinal bacteria metabolism in vitro and in vivo. CONCLUSION The decomposition and/or metabolism of Rg1 in rat and human digestive tract was confirmed. The mode of metabolism in rat is Rg1-->Rh1(F1)-->Ppt, while in human it is Rg1-->Rh1-->Ppt.
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Affiliation(s)
- Y Wang
- Research Centre of New Drug, Changchun College of Traditional Chinese Medicine, Changchun 130021, Jinlin, China
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Liu TH, Moody FG. Pathogenesis and presentation of common bile duct stones. Semin Laparosc Surg 2000; 7:224-31. [PMID: 11323759] [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: 02/19/2023]
Abstract
Common bile duct stones are generally classified as primary or secondary stones based on the locations of origin. The vast majority of the stones found in the biliary tree are secondary stones. The current review discusses the pathogenesis and presentations of primary and secondary biliary stones. Based on discussion of disease pathogenesis and presentation, recommendations for the evaluation and management of common and uncommon disease processes associated with choledocholithiasis are proposed.
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Affiliation(s)
- T H Liu
- Department of Surgery, University of Texas-Houston Medical School, 77026-1967, USA
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Liu TH, Consorti ET. Inflammatory pseudotumor presenting as a cystic tumor of the pancreas. Am Surg 2000; 66:993-7. [PMID: 11090004] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/18/2023]
Abstract
Inflammatory pseudotumor (IPT) of the pancreas occurs rarely. Eighteen cases have been described in the English literature. In all previous patients IPT of the pancreas presented as solid pancreatic mass. We are reporting a case of IPT presenting as a cystic mass of the pancreas, which has not been described previously. A review of IPT of the pancreas and a discussion regarding the management of pancreatic cystic neoplasm is provided.
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Affiliation(s)
- T H Liu
- Department of Surgery, The University of Texas-Houston Health Science Center at Lyndon B. Johnson General Hospital, USA
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Wang Y, Wang BX, Liu TH, Minami M, Nagata T, Ikejima T. Metabolism of ginsenoside Rg1 by intestinal bacteria. II. Immunological activity of ginsenoside Rg1 and Rh1. Acta Pharmacol Sin 2000; 21:792-6. [PMID: 11501159] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/21/2023] Open
Abstract
AIM To compare the effect of ginsenoside Rg1 and its metabolite Rh1 on proinflammatory cytokines and their mRNA expression by THP-1 cells. METHODS Human peripheral blood mononuclear cells (PBMC) were incubated with Rg1 and Rh1 at concentrations of 0.1, 1, 10, and 100 mg/L, and the cell proliferation was measured 24 h after incubation. Radioimmunoassay (RIA) was used to detect the production of proinflammatory cytokines, TNF alpha, IL-1 alpha, and IL-8. TNF alpha mRNA level was detected by reverse transcription polymerase chain reaction (RT-PCR) after administration of Rg1 and Rh1. RESULTS Rg1 and Rh1 (at concentration of 0.1, 1, 10, 100 mg/L) had no effect on PBMC proliferation. Rh1 1 mg/L could upregulate the productions of TNF (and IL-8 induced by lipopolysaccharides (LPS) 10 mg/L plus phorbol myristate acetate (PMA) 200 nmol/L, however, Rg1 showed an inhibitory effect on TNF alpha production induced by LPS 100 mg/L. Rg1 1 mg/L and Rh1 100 mg/L enhanced the production of IL-1 alpha level in THP-1 cells in the presence of LPS 10 mg/L. RT-PCR revealed that Rh1 stimulated TNF alpha mRNA expression in suitable stimulatory conditions. CONCLUSION Rg1 and Rh1 have different effects on the production of cytokines produced THP-1 cells stimulated by LPS and PMA.
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Affiliation(s)
- Y Wang
- Research Center of New Drug, Changchun College of Traditional Chinese Medicine, Changchun 130021, China
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Abstract
Developmental regulators and cell cycle regulators have to interface in order to ensure appropriate cell proliferation during organogenesis. Our analysis of the roles of the pan-neural genes deadpan and asense defines critical roles for these genes in regulation of mitotic activities in the larval optic lobes. Loss of deadpan results in reduced cell proliferation, while ectopic deadpan expression causes over-proliferation. In contrast, loss of asense results in increased proliferation, while ectopic asense expression causes reduced proliferation. Consistent with these observations endogenous Deadpan is expressed in mitotic areas of the optic lobes, and endogenous Asense is expressed in cells that will become quiescent. Altered Deadpan or Asense expression results in altered expression of the cyclin dependent kinase inhibitor gene dacapo. Thus, regulation of mitotic activity during optic lobe development may, at least in part, involve deadpan and asense mediated regulation of the cyclin dependent kinase inhibitor gene dacapo. genesis 26:77-85, 2000.
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Affiliation(s)
- K Wallace
- Department of Molecular Genetics, The Ohio State University, Columbus, Ohio, USA
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Liu TH, Consorti ET, Kawashima A, Ernst RD, Black CT, Greger PH, Fischer RP, Mercer DW. The efficacy of magnetic resonance cholangiography for the evaluation of patients with suspected choledocholithiasis before laparoscopic cholecystectomy. Am J Surg 1999; 178:480-4. [PMID: 10670857 DOI: 10.1016/s0002-9610(99)00224-x] [Citation(s) in RCA: 55] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
BACKGROUND Endoscopic retrograde cholangiography is the most commonly utilized tool for the identification of common bile duct stones (CBDS) before laparoscopic cholecystectomy, whereas the role of magnetic resonance cholangiography (MRC) for patient evaluation before laparoscopic cholecystectomy is currently undefined. METHODS We prospectively evaluated the efficacy of MRC for the identification of CBDS among patients with high risk for choledocholithiasis. Patient selection was based on clinical, sonographic, and laboratory criteria. Standard cholangiograms were obtained when possible for verification of MRC results. RESULTS Ninety-nine patients underwent evaluation with preoperative MRC. CBDS was visualized in 30% of patients. MRC sensitivity, specificity, positive predictive value, negative predictive value, and accuracy were 85%, 90%, 77%, 94%, and 89%, respectively. CONCLUSIONS MRC is useful for the evaluation of patients with suspected choledocholithiasis. Advantages of MRC include its noninvasive nature, ease of application, and accuracy in identifying and estimating the size of CBDS. Application of MRC in this setting reduces the need for diagnostic endoscopic retrograde cholangiography. Future investigations should be directed at the development of cost-effective utilization strategies for MRC application.
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Affiliation(s)
- T H Liu
- Department of Surgery, The University of Texas, Houston Health Science Center at Lyndon B. Johnson General Hospital, 77026-1967, USA
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Abstract
The protein kinase Chk1 is required for cell cycle arrest in response to DNA damage. We have found that the 14-3-3 proteins Rad24 and Rad25 physically interact with Chk1 in fission yeast. Association of Chk1 with 14-3-3 proteins is stimulated in response to DNA damage. DNA damage results in phosphorylation of Chk1 and the 14-3-3 proteins bind preferentially to the phosphorylated form. Genetic analysis has independently implicated both Rad24 and Rad25 in the DNA-damage checkpoint pathway. We suggest that DNA damage-dependent association of phosphorylated Chk1 with 14-3-3 proteins mediates an important step along the DNA-damage checkpoint pathway, perhaps by directing Chk1 to a particular substrate or to a particular location within the cell. An additional role for 14-3-3 proteins in the DNA-damage checkpoint has been suggested based on the observation that human Chk1 can phosphorylate Cdc25C in vitro creating a 14-3-3 binding site. Our results suggest that in fission yeast the interaction between the 14-3-3 proteins and Cdc25 does not require Chk1 function and is unaffected by DNA damage, in sharp contrast to the interaction between the 14-3-3 proteins and Chk1.
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Affiliation(s)
- L Chen
- Department of Pharmacology, University of Medicine and Dentistry of New Jersey (UMDNJ)-Robert Wood Johnson Medical School, Piscataway, New Jersey 08854, USA
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42
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Wang YJ, Ho YS, Chu SW, Lien HJ, Liu TH, Lin JK. Induction of glutathione depletion, p53 protein accumulation and cellular transformation by tetrachlorohydroquinone, a toxic metabolite of pentachlorophenol. Chem Biol Interact 1997; 105:1-16. [PMID: 9233372 DOI: 10.1016/s0009-2797(97)00023-9] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Glutathione (GSH) conjugate formation with tetrachlorohydroquione (TCHQ) and the GSH content in vivo were measured by capillary zone electrophoresis. A more than 60% depletion of GSH content was found in liver tissue of mice treated with TCHQ. In addition, p53 protein accumulation and DNA fragmentation was induced by TCHQ. A two-stage model of chemical transformation of mouse embryonic fibroblasts was used to elucidate the transformation activity of TCHQ in vitro, and a 33% foci formation efficiency was found at the concentration of 5 microM. GSH depletion caused by TCHQ could abolish the protective ability of the cell against reactive oxygen species provided by GSH. When DNA was damaged, p53 protein accumulated in the nucleus and, in the case of severe damage, initiated apoptosis. TCHQ's ability to cause GSH depletion and DNA damage may play a role in the cytotoxic and genotoxic properties of its metabolic precursor, PCP.
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Affiliation(s)
- Y J Wang
- Institute of Biochemistry, College of Medicine, National Taiwan University, Taipei, ROC
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43
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Abstract
Molecular mutations of the glucose-6-phosphate dehydrogenase (G6PD) gene and clinical manifestations of neonatal jaundice in 112 male and 50 female Chinese neonates with G6PD deficiency were studied. In the 112 males, the nucleotide (nt) 1376 (G-->T) mutation was the dominant type (50.0%), followed by nt 1388 (G-->A) (16.1%), nt 493 (A-->G) (8.0%), nt 1024 (C-->T) (6.2%), nt 95 (A-->G) (5.4%), nt 392 (G-->T) (1.8%), nt 487 (G-->A) (1.8%), nt 871 (G-->A) (0.9%), and nt 1360 (C-->T) (0.9%). The nt 871 variant has not been reported in Taiwan before. The occurrence rates for nt 1376, nt 1388, nt 493, nt 95, and nt 1024 mutations in the 50 females were 44.0%, 18.0%, 12.0%, 6.0%, and 6.0%, respectively. The type of G6PD mutation in 10 male and 7 female neonates has not been identified yet. Although G6PD deficient neonates had higher frequency of phototherapy than G6PD normal neonates in both sexes, a significant difference in the prevalence of hyperbilirubinemia (peak bilirubin > or = 15.0 mg/dl) between G6PD deficient and normal neonates was found only in males. Further analysis showed that duration of phototherapy was longer in G6PD deficient male neonates than in the control group, while the outcome of phototherapy was better in subjects with non-nt 1376 mutations than subjects with the nt 1376 mutation. Most (78.3%) of the 23 G6PD deficient neonates who subsequently suffered from neonatal hyperbilirubinemia carried the nt 1376 mutation. The results of this study indicate that the nucleotide substitution at 1376 is the most common and important mutation for G6PD deficiency in Chinese neonates in Taiwan.
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Affiliation(s)
- C S Huang
- Department of Laboratory Medicine, Cathay General Hospital, Taipei, Taiwan, Republic of China
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44
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Liu TH, Stephens LC, Hannapel DJ. Transformation of Solanum brevidens using Agrobacterium tumefaciens. Plant Cell Rep 1995; 15:196-199. [PMID: 24185775 DOI: 10.1007/bf00193719] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/25/1995] [Revised: 05/31/1995] [Indexed: 06/02/2023]
Abstract
Leaf pieces of in vitro-cultured plantlets of the wild potato species Solanum brevidens Phil. were cocultivated with Agrobacterium tumefaciens that contained nptII and uidA genes on the disarmed plasmid pBI121. Independent transgenic shoots were regenerated from solidified and liquid medium that contained 50 mg l(-1) kanamycin. Two Agrobacterium strains were investigated for transformation efficiency. GV2260, which contained p35SGUSINT, resulted in a 11% transformation frequency, compared with 1% using LBA4404. Transformation rates were 7% in liquid culture and 3% on solidified medium. All kanamycinresistant, putatively transformed plantlets were confirmed positive by histochemical GUS assays. GUS activity in 22 independently transformed plants was quantified by fluorometric assay. Southern analysis of randomly selected transgenic plants showed that each transgenic plant contained at least one copy of the uidA gene.
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Affiliation(s)
- T H Liu
- Department of Horticulture, Iowa State University, 50011-1100, Ames, IA, USA
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45
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Tang TK, Liu TH, Tang CJ, Tam KB. Glucose-6-phosphate dehydrogenase (G6PD) mutations associated with F8C/G6PD haplotypes in Chinese. Blood 1995; 85:3767-8. [PMID: 7780161] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
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46
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Liu HR, Liu TH, Lu ZL. [Pathological study on thoracic carcinoids accompanied with Cushing's syndrome]. Zhonghua Bing Li Xue Za Zhi 1994; 23:351-4. [PMID: 7720114] [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: 01/26/2023]
Abstract
Eight patients with carcinoid tumors (5 from the lungs and 3 from the thymus) associated with Cushing's syndrome were studied. Among them, 5 were male and 3 female with a mean age of 32.5 years. Histologically, all were typical carcinoids. Immunohistochemically, tumor cells were strongly positive of NSE, chromogranin A and ACTH in all 8 cases. Some tumors also positive for S-100, calcitonin, HCG alpha and HCG beta. Various amounts of neurosecretory granules were found in the tumors by electron microscopy and ACTH positive dots were also noticed in some of the neurosecretory granules in the tumor cells by immunoelectron microscopical colloidal gold labelling technique. By in situ hybridization technique, overexpression of chromogranin A mRNA was detected in all of the tumors reported.
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Affiliation(s)
- H R Liu
- Department of Pathology, Peking Union Medical College Hospital, Beijing
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47
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Fisher A, Som PM, Mosesson RE, Lidov M, Liu TH. Giant intracranial aneurysms with skull base erosion and extracranial masses: CT and MR findings. J Comput Assist Tomogr 1994; 18:939-42. [PMID: 7962805 DOI: 10.1097/00004728-199411000-00018] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
OBJECTIVE To present the CT and MR findings of three patients with giant intracranial aneurysms (GIAs), each of which eroded the skull base and had an extracranial mass component. A literature review of GIAs was also performed. MATERIALS AND METHODS In the past year the imaging studies of three patients with these unusual GIAs were collected at our institutions. All three patients had had CT, and one patient had had MR on a 1.5 T GE unit. RESULTS One patient had a 5 cm GIA in the left petrocavernous region, filling the middle cranial fossa and extending into the left sphenoid sinus and the left posterior ethmoid complex. The aneurysm had heterogeneous high attenuation and extensive rim calcification. The second patient had a 5 cm GIA that filled most of the left middle cranial fossa, eroding the floor and lateral wall and extending into the infratemporal fossa and parapharyngeal space. The aneurysm was partially thrombosed and had minimal rim calcification. The third patient had a 4 cm left cavernous GIA that eroded the floor of the middle cranial fossa and extended into the subjacent parapharyngeal space. The lesion was partially thrombosed and had an enhancing lumen. The rim had low signal intensity on MR. None of these patients had a history of trauma. CONCLUSION Giant intracranial aneurysms can cause significant skull base erosion and extend into the paranasal sinuses, parapharyngeal space, and infratemporal fossa. The CT and MR findings can lead to an accurate diagnosis.
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Affiliation(s)
- A Fisher
- Department of Radiology, Mount Sinai School of Medicine, City University of New York, NY
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48
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Wang ZY, Liu TH, Cui QC. [Gene diagnosis of pancreatic adenocarcinoma]. Zhonghua Bing Li Xue Za Zhi 1994; 23:270-3. [PMID: 7874757] [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: 01/27/2023]
Abstract
Polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) technique was used to analyze c-Ki-ras codon 12 mutation in 27 fine needle aspiration biopsy (FNAB) specimens of the pancreas and its adjacent organs for the diagnosis of pancreatic adenocarcinoma. C-Ki-ras codon 12 mutation was present in 14 out of 15 cases of pancreatic adenocarcinoma, the positive rate was 93.33% (14/15); whereas no mutation was detected in those obtained from 12 patients with chronic pancreatitis, pancreatic cyst, gallbladder carcinoma, carcinoma of ampulla of Vater and gastric lymphoma. The results of this study verifies the PCR-RFLP technique as a practical, sensitive, rapid and reliable method for the detection of c-Ki-ras codon 12 mutation in the diagnosis of pancreatic adenocarcinoma.
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Affiliation(s)
- Z Y Wang
- Department of Pathology, PUMC Hospital, Beijing
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49
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Chen J, Liu TH. Expression of EGF, TGF-alpha, EGFR and c-erbB2 genes and their gene products in human pancreatic carcinoma cell lines. Zentralbl Pathol 1994; 140:265-270. [PMID: 7947634] [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: 05/22/2023]
Abstract
The expression of mRNA for epidermal growth factor (EGF), transforming growth factor-alpha (TGF-alpha), EGF receptor (EGFR) and c-erbB-2 genes and the immunoreactivity to these gene products were examined in 3 newly established human pancreatic carcinoma cell lines and their corresponding in vivo tumor lines using the Northern blot technique and the immunohistochemical method. All 3 cell lines expressed TGF-alpha, EGFR and 2 of the 3 lines expressed EGF and c-erbB-2 mRNAs. The immunohistochemical study showed immunoreactivity to EGF, TGF-alpha and EGFR in all these 3 cell lines and their corresponding in vivo tumor lines. These results indicate that the autocrine loop of EGF and/or TGF-alpha/EGFR in pancreatic carcinoma cells may be one of the important reasons for the uncontrolled growth of the pancreatic carcinoma. The c-erbB-2 overexpression in some of the cell lines may also contribute to the carcinogenesis or progression of this cancer.
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Affiliation(s)
- J Chen
- Department of Pathology, Peking Union Medical College Hospital, People's Republic of China
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50
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Shen J, Song HJ, Liu TH. [Synchronous primary cancers of endometrium and ovary]. Zhonghua Fu Chan Ke Za Zhi 1994; 29:498-501. [PMID: 7835123] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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