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Xie G, Zheng X, Qi X, Cao Y, Chi Y, Su M, Ni Y, Qiu Y, Liu Y, Li H, Zhao A, Jia W. Metabonomic Evaluation of Melamine-Induced Acute Renal Toxicity in Rats. J Proteome Res 2009; 9:125-33. [DOI: 10.1021/pr900333h] [Citation(s) in RCA: 81] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Guoxiang Xie
- Department of Nutrition, University of North Carolina at Greensboro, North Carolina Research Campus, Kannapolis, North Carolina, 28081, and Shanghai Center for Systems Biomedicine and School of Pharmacy, Shanghai Jiao Tong University, Shanghai, 200240, P. R. China
| | - Xiaojiao Zheng
- Department of Nutrition, University of North Carolina at Greensboro, North Carolina Research Campus, Kannapolis, North Carolina, 28081, and Shanghai Center for Systems Biomedicine and School of Pharmacy, Shanghai Jiao Tong University, Shanghai, 200240, P. R. China
| | - Xin Qi
- Department of Nutrition, University of North Carolina at Greensboro, North Carolina Research Campus, Kannapolis, North Carolina, 28081, and Shanghai Center for Systems Biomedicine and School of Pharmacy, Shanghai Jiao Tong University, Shanghai, 200240, P. R. China
| | - Yu Cao
- Department of Nutrition, University of North Carolina at Greensboro, North Carolina Research Campus, Kannapolis, North Carolina, 28081, and Shanghai Center for Systems Biomedicine and School of Pharmacy, Shanghai Jiao Tong University, Shanghai, 200240, P. R. China
| | - Yi Chi
- Department of Nutrition, University of North Carolina at Greensboro, North Carolina Research Campus, Kannapolis, North Carolina, 28081, and Shanghai Center for Systems Biomedicine and School of Pharmacy, Shanghai Jiao Tong University, Shanghai, 200240, P. R. China
| | - Mingming Su
- Department of Nutrition, University of North Carolina at Greensboro, North Carolina Research Campus, Kannapolis, North Carolina, 28081, and Shanghai Center for Systems Biomedicine and School of Pharmacy, Shanghai Jiao Tong University, Shanghai, 200240, P. R. China
| | - Yan Ni
- Department of Nutrition, University of North Carolina at Greensboro, North Carolina Research Campus, Kannapolis, North Carolina, 28081, and Shanghai Center for Systems Biomedicine and School of Pharmacy, Shanghai Jiao Tong University, Shanghai, 200240, P. R. China
| | - Yunping Qiu
- Department of Nutrition, University of North Carolina at Greensboro, North Carolina Research Campus, Kannapolis, North Carolina, 28081, and Shanghai Center for Systems Biomedicine and School of Pharmacy, Shanghai Jiao Tong University, Shanghai, 200240, P. R. China
| | - Yumin Liu
- Department of Nutrition, University of North Carolina at Greensboro, North Carolina Research Campus, Kannapolis, North Carolina, 28081, and Shanghai Center for Systems Biomedicine and School of Pharmacy, Shanghai Jiao Tong University, Shanghai, 200240, P. R. China
| | - Houkai Li
- Department of Nutrition, University of North Carolina at Greensboro, North Carolina Research Campus, Kannapolis, North Carolina, 28081, and Shanghai Center for Systems Biomedicine and School of Pharmacy, Shanghai Jiao Tong University, Shanghai, 200240, P. R. China
| | - Aihua Zhao
- Department of Nutrition, University of North Carolina at Greensboro, North Carolina Research Campus, Kannapolis, North Carolina, 28081, and Shanghai Center for Systems Biomedicine and School of Pharmacy, Shanghai Jiao Tong University, Shanghai, 200240, P. R. China
| | - Wei Jia
- Department of Nutrition, University of North Carolina at Greensboro, North Carolina Research Campus, Kannapolis, North Carolina, 28081, and Shanghai Center for Systems Biomedicine and School of Pharmacy, Shanghai Jiao Tong University, Shanghai, 200240, P. R. China
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152
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Su M, Ayzenberg V, Li W. SU-FF-T-254: Factors Study for MapCheck IMRT QA Evaluation. Med Phys 2009. [DOI: 10.1118/1.3181730] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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153
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Xie G, Ye M, Wang Y, Ni Y, Su M, Huang H, Qiu M, Zhao A, Zheng X, Chen T, Jia W. Characterization of pu-erh tea using chemical and metabolic profiling approaches. J Agric Food Chem 2009; 57:3046-3054. [PMID: 19320437 DOI: 10.1021/jf804000y] [Citation(s) in RCA: 80] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
In this study, the chemical constituents of pu-erh tea, black tea, and green tea, as well as those of pu-erh tea products of different ages, were analyzed and compared using a chemical profiling approach. Differences in tea processing resulted in differences in the chemical constituents and the color of tea infusions. Human biological responses to pu-erh tea ingestion were also studied by using ultraperformance liquid chromatography-quadrupole time-of-flight mass spectrometry (UPLC-QTOFMS) in conjunction with multivariate statistical techniques. Metabolic alterations during and after pu-erh tea ingestion were characterized by increased urinary excretion of 5-hydroxytryptophan, inositol, and 4-methoxyphenylacetic acid, along with reduced excretion of 3-chlorotyrosine and creatinine. This study highlights the potential for metabonomic technology to assess nutritional interventions and is an important step toward a full understanding of pu-erh tea and its influence on human metabolism.
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Affiliation(s)
- Guoxiang Xie
- Shanghai Center for Systems Biomedicine, School of Pharmacy, Shanghai Jiao Tong University, Shanghai, 200240, People's Republic of China
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154
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Abstract
BACKGROUND After treating a hypoglycaemic patient, how in-depth a work-up is required to prevent their next hypoglycaemic episode? OBJECTIVE To determine the utility of routine laboratory testing in the management of hypoglycaemia. METHODS A cross-sectional study at two urban teaching hospitals from July 2006 to July 2007. The study included adult patients (> or = 18 years) with hypoglycaemia (fingerstick glucose < or = 60 mg/dl (3.33 mmol/l) in the emergency department or altered mental status resolved by glucose or glucagon). Predictor variables were age, gender, medical history, physical examination, hypoglycaemic agent (insulin vs oral hypoglycaemic). Outcome variables were electrolyte abnormality (serum sodium outside the range of 135-145 mmol/l; serum potassium outside the range of 3.5-5.0 mEq/dl), leucocytosis (white blood cell count >15,000/high power field) or urinary tract infection. Continuous data are presented as mean (SD). Categorical data are presented as percentages with 95% confidence intervals. Student's t and Fisher's exact tests were used to compare data when appropriate (alpha = 0.05, two-tailed). RESULTS 291 patients were studied with a mean age of 64 years (SD 16) (range 22-95) 54 women. 200 patients (69%, 95% CI 63% to 74%) had at least one laboratory abnormality. These included newly diagnosed renal failure (23%), pre-existing renal failure (32%), hypokalaemia (8%), hyperkalaemia (11%), leucocytosis (4.2%) and pyuria (19%). No significant difference was found between the rates of abnormal laboratory results in patients on insulin versus those on oral hypoglycaemics. Higher admission rates (p = 0.001) were also observed in patients with abnormal (70%) compared with normal (53%) laboratory results. CONCLUSION The high rate of laboratory abnormalities in hypoglycaemic patients justifies routine testing.
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Affiliation(s)
- R Sinert
- Department of Emergency Medicine, State University of New York, Downstate Medial Center, Box 1228, 450 Clarkson Avenue, Brooklyn, NY 11203, USA.
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155
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Wang X, Zhao T, Qiu Y, Su M, Jiang T, Zhou M, Zhao A, Jia W. Metabonomics Approach to Understanding Acute and Chronic Stress in Rat Models. J Proteome Res 2009; 8:2511-8. [DOI: 10.1021/pr801086k] [Citation(s) in RCA: 63] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Xiaoyan Wang
- Shanghai Center for Systems Biomedicine, and School of Pharmacy, Shanghai Jiao Tong University, Shanghai, 200240, People’s Republic of China, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, People’s Republic of China, and Department of Nutrition, University of North Carolina at Greensboro, North Carolina Research Campus, Kannapolis, North Carolina 28081
| | - Tie Zhao
- Shanghai Center for Systems Biomedicine, and School of Pharmacy, Shanghai Jiao Tong University, Shanghai, 200240, People’s Republic of China, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, People’s Republic of China, and Department of Nutrition, University of North Carolina at Greensboro, North Carolina Research Campus, Kannapolis, North Carolina 28081
| | - Yunping Qiu
- Shanghai Center for Systems Biomedicine, and School of Pharmacy, Shanghai Jiao Tong University, Shanghai, 200240, People’s Republic of China, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, People’s Republic of China, and Department of Nutrition, University of North Carolina at Greensboro, North Carolina Research Campus, Kannapolis, North Carolina 28081
| | - Mingming Su
- Shanghai Center for Systems Biomedicine, and School of Pharmacy, Shanghai Jiao Tong University, Shanghai, 200240, People’s Republic of China, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, People’s Republic of China, and Department of Nutrition, University of North Carolina at Greensboro, North Carolina Research Campus, Kannapolis, North Carolina 28081
| | - Tao Jiang
- Shanghai Center for Systems Biomedicine, and School of Pharmacy, Shanghai Jiao Tong University, Shanghai, 200240, People’s Republic of China, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, People’s Republic of China, and Department of Nutrition, University of North Carolina at Greensboro, North Carolina Research Campus, Kannapolis, North Carolina 28081
| | - Mingmei Zhou
- Shanghai Center for Systems Biomedicine, and School of Pharmacy, Shanghai Jiao Tong University, Shanghai, 200240, People’s Republic of China, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, People’s Republic of China, and Department of Nutrition, University of North Carolina at Greensboro, North Carolina Research Campus, Kannapolis, North Carolina 28081
| | - Aihua Zhao
- Shanghai Center for Systems Biomedicine, and School of Pharmacy, Shanghai Jiao Tong University, Shanghai, 200240, People’s Republic of China, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, People’s Republic of China, and Department of Nutrition, University of North Carolina at Greensboro, North Carolina Research Campus, Kannapolis, North Carolina 28081
| | - Wei Jia
- Shanghai Center for Systems Biomedicine, and School of Pharmacy, Shanghai Jiao Tong University, Shanghai, 200240, People’s Republic of China, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, People’s Republic of China, and Department of Nutrition, University of North Carolina at Greensboro, North Carolina Research Campus, Kannapolis, North Carolina 28081
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156
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Bao Y, Zhao T, Wang X, Qiu Y, Su M, Jia W, Jia W. Metabonomic Variations in the Drug-Treated Type 2 Diabetes Mellitus Patients and Healthy Volunteers. J Proteome Res 2009; 8:1623-30. [DOI: 10.1021/pr800643w] [Citation(s) in RCA: 108] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Yuqian Bao
- Department of Endocrinology and Metabolism, Shanghai Jiao Tong University Affiliated Sixth People’s Hospital, Shanghai Diabetes Institute, Shanghai Clinical Center of Diabetes, Shanghai, China, School of Pharmacy, and Shanghai Center for Systems Biomedicine, Shanghai Jiao Tong University, Shanghai, China, and Department of Nutrition, University of North Carolina at Greensboro, North Carolina Research Center, Kannapolis, North Carolina 28081
| | - Tie Zhao
- Department of Endocrinology and Metabolism, Shanghai Jiao Tong University Affiliated Sixth People’s Hospital, Shanghai Diabetes Institute, Shanghai Clinical Center of Diabetes, Shanghai, China, School of Pharmacy, and Shanghai Center for Systems Biomedicine, Shanghai Jiao Tong University, Shanghai, China, and Department of Nutrition, University of North Carolina at Greensboro, North Carolina Research Center, Kannapolis, North Carolina 28081
| | - Xiaoyan Wang
- Department of Endocrinology and Metabolism, Shanghai Jiao Tong University Affiliated Sixth People’s Hospital, Shanghai Diabetes Institute, Shanghai Clinical Center of Diabetes, Shanghai, China, School of Pharmacy, and Shanghai Center for Systems Biomedicine, Shanghai Jiao Tong University, Shanghai, China, and Department of Nutrition, University of North Carolina at Greensboro, North Carolina Research Center, Kannapolis, North Carolina 28081
| | - Yunping Qiu
- Department of Endocrinology and Metabolism, Shanghai Jiao Tong University Affiliated Sixth People’s Hospital, Shanghai Diabetes Institute, Shanghai Clinical Center of Diabetes, Shanghai, China, School of Pharmacy, and Shanghai Center for Systems Biomedicine, Shanghai Jiao Tong University, Shanghai, China, and Department of Nutrition, University of North Carolina at Greensboro, North Carolina Research Center, Kannapolis, North Carolina 28081
| | - Mingming Su
- Department of Endocrinology and Metabolism, Shanghai Jiao Tong University Affiliated Sixth People’s Hospital, Shanghai Diabetes Institute, Shanghai Clinical Center of Diabetes, Shanghai, China, School of Pharmacy, and Shanghai Center for Systems Biomedicine, Shanghai Jiao Tong University, Shanghai, China, and Department of Nutrition, University of North Carolina at Greensboro, North Carolina Research Center, Kannapolis, North Carolina 28081
| | - Weiping Jia
- Department of Endocrinology and Metabolism, Shanghai Jiao Tong University Affiliated Sixth People’s Hospital, Shanghai Diabetes Institute, Shanghai Clinical Center of Diabetes, Shanghai, China, School of Pharmacy, and Shanghai Center for Systems Biomedicine, Shanghai Jiao Tong University, Shanghai, China, and Department of Nutrition, University of North Carolina at Greensboro, North Carolina Research Center, Kannapolis, North Carolina 28081
| | - Wei Jia
- Department of Endocrinology and Metabolism, Shanghai Jiao Tong University Affiliated Sixth People’s Hospital, Shanghai Diabetes Institute, Shanghai Clinical Center of Diabetes, Shanghai, China, School of Pharmacy, and Shanghai Center for Systems Biomedicine, Shanghai Jiao Tong University, Shanghai, China, and Department of Nutrition, University of North Carolina at Greensboro, North Carolina Research Center, Kannapolis, North Carolina 28081
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157
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Wang Y, Liu Z, Zhao A, Su M, Xie G, Jia W. [Functional genomic approaches to explore secondary metabolites in medicinal plants]. Zhongguo Zhong Yao Za Zhi 2009; 34:6-10. [PMID: 19382439] [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: 05/27/2023]
Abstract
Extensive genomic data concerning medicinal plants are rather scarce and insights of the secondary metabolic pathways and their regulatory mechanism are insufficient, hampering the broad application of cell or tissue cultivation and metabolic engineering to producing high-value secondary metabolites. The integration of cDNA-AFLP based transcript profiling and metabolomics, a new development of functional genomic approaches could establish correlations between the changes of secondary metabolites and expressions of related genes. It has manifested widely applicative prospects in seeking genes involved in biosynthesis of secondary metabolites and exploring secondary metabolic pathways. Functional genomic approaches are promising trends in the field of medicinal plants secondary metabolites research and will lead to better utilization of natural medicinal resources.
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Affiliation(s)
- Yongbo Wang
- School of Pharmacy, Shanghai Jiao Tong University, Shanghai 200240, China
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158
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Zhang L, Su M, Liu N, Zhou X, Kang P. Degradation of malachite green solution using combined microwave and ZnFe(2)O(4) powder. Water Sci Technol 2009; 60:2563-2569. [PMID: 19923762 DOI: 10.2166/wst.2009.497] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Dyestuff malachite green MG in aqueous solution can be degraded rapidly assisted by microwave irradiation (MW) in the presence of ZnFe(2)O(4) powder. ZnFe(2)O(4) acted as a MW as well as the catalyst for MG degradation, and could be used repeatedly. The effects of MW time, initial concentration of MG, addition amount, pH value and used times of ZnFe(2)O(4) powder were discussed in details using UV-Vis spectra, FT-IR spectra, ion chromatography and TOC analysis technologies. The results showed that the degradation percentage of MG was nearly 100%, corresponding to 92% of TOC removal, when the mass fraction of ZnFe(2)O(4) was 1.2%, MW 500 W and the irradiation time 2 min. Additionally, the above method using ZnFe(2)O(4) powder as catalyst combined with MW has high degradation ratios, short reaction time, low costs, no intermediates and no secondary pollution. Therefore, it may be available for the treatment of various dyestuff wastewaters on a large scale.
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Affiliation(s)
- Lei Zhang
- College of Chemistry, Liaoning University, Shenyang 110036, People's Republic of China.
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159
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Dan M, Xie G, Gao X, Long X, Su M, Zhao A, Zhao T, Zhou M, Qiu Y, Jia W. A rapid ultra-performance liquid chromatography-electrospray Ionisation mass spectrometric method for the analysis of saponins in the adventitious roots of Panax notoginseng. Phytochem Anal 2009; 20:68-76. [PMID: 18972457 DOI: 10.1002/pca.1099] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
INTRODUCTION Saponins are bioactive compounds employed in the prevention and treatment of cardiovascular and cerebrovascular diseases. The adventitious roots of Panax notoginseng may offer an alternative source of saponins. Identification and determination of saponins in the crude extract is challenging owing to their similar structures and the lack of standards. OBJECTIVE To develop a rapid, sensitive and accurate method based on solid-phase extraction followed by ultra-performance liquid chromatography-electrospray ionisation mass spectrometry (UPLC-ESI-MS) for the identification and quantification of saponins in P. notoginseng. METHODOLOGY Following extraction using Waters Oasis(TM) HLB cartridges, the analytes were subjected to a UPLC system with a Waters Acquity BEH C(18) chromatographic column and a binary mobile phase system consisting of 0.05% formic acid in water and acetonitrile under gradient elution conditions, with final detection by ESI-MS in the positive ion mode. RESULTS The UPLC-ESI-MS method gave limits of detection and quantification within the range 0.015-0.382 and 0.052-1.124 microg/mL, respectively, for 15 studied saponins. The instrumentation/injection precision (RSD) was 4.5% for a low concentration and 3.2% for an intermediate concentration sample. The intra- and inter-day repeatability was less than 2.65% (RSD). The method described was validated using spiked samples with different amounts of saponin standards. CONCLUSION This UPLC-ESI-MS assay provides a suitable quality control method for the tentative identification and determination of major biological active constituents in adventitious and native roots of P. notoginseng.
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Affiliation(s)
- Mo Dan
- School of Pharmacy, Shanghai Jiao Tong University, Shanghai 200240, People's Republic of China
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160
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Abstract
BACKGROUND Olanzapine is commonly prescribed to patients with schizophrenia. One retrospective study demonstrates the efficacy of physostigmine in reversing mental status changes induced by olanzapine. We report two patients with delirium due to confirmed olanzapine overdose treated with physostigmine. One patient's mental status transiently returned to normal. The other patient completely recovered. CASE 1: A 25-year-old man ingested 300 mg of olanzapine. On presentation, he was agitated, delirious, tachycardic, had dry skin and mucous membranes, and dilated pupils (6 mm) minimally reactive to light. Physostigmine, 0.5 mg, was given intravenously (IV) without effect. Additional physostigmine doses of 1.5 mg IV administered 5 minutes later and then 1 mg IV resulted in the patient having a clear sensorium and normal mentation. The patient's mental status continued to remain normal for the duration of his hospital stay. Olanzapine was identified in the urine by high performance liquid chromatography. CASE 2: A 20-year-old female ingested 600 mg of olanzapine. On presentation, she was tachycardic, obtunded, and minimally responsive to painful stimuli, with decreased bowel sounds, dry skin and dry mucous membranes. Physostigmine, 2 mg, was given IV. Shortly thereafter she regained full consciousness and began speaking coherently. She remained in this condition for approximately 30 minutes, and then became obtunded. Her serum olanzapine concentration was 1230 ng/mL. No further doses of physostigmine were administered. On day 3 of admission her mental status returned to normal. CONCLUSION We report two cases of olanzapine-induced mental status changes treated with physostigmine. The utility of physostigmine as a safe or necessary antidote in the setting of olanzapine overdose remains to be determined.
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Affiliation(s)
- M Weizberg
- Department of Emergency Medicine, SUNY Downstate Medical Center/Kings County Hospital, Brooklyn, NY 11203, USA
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161
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Li H, Xie Z, Lin J, Song H, Wang Q, Wang K, Su M, Qiu Y, Zhao T, Song K, Wang X, Zhou M, Liu P, Zhao G, Zhang Q, Jia W. Transcriptomic and Metabonomic Profiling of Obesity-Prone and Obesity-Resistant Rats under High Fat Diet. J Proteome Res 2008; 7:4775-83. [DOI: 10.1021/pr800352k] [Citation(s) in RCA: 75] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Houkai Li
- School of Pharmacy and Shanghai Center for Systems Biomedicine, Shanghai Jiao Tong University, Shanghai 200240, PRC, State Key Laboratory of Medical Genomics and Shanghai Institute of Hematology Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, PRC, National Engineering Center for Biochip at Shanghai, 201203, PRC, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, PRC, and Department of Nutrition, University of North Carolina at Greensboro, North
| | - Zuoquan Xie
- School of Pharmacy and Shanghai Center for Systems Biomedicine, Shanghai Jiao Tong University, Shanghai 200240, PRC, State Key Laboratory of Medical Genomics and Shanghai Institute of Hematology Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, PRC, National Engineering Center for Biochip at Shanghai, 201203, PRC, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, PRC, and Department of Nutrition, University of North Carolina at Greensboro, North
| | - Jingchao Lin
- School of Pharmacy and Shanghai Center for Systems Biomedicine, Shanghai Jiao Tong University, Shanghai 200240, PRC, State Key Laboratory of Medical Genomics and Shanghai Institute of Hematology Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, PRC, National Engineering Center for Biochip at Shanghai, 201203, PRC, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, PRC, and Department of Nutrition, University of North Carolina at Greensboro, North
| | - Huaiguang Song
- School of Pharmacy and Shanghai Center for Systems Biomedicine, Shanghai Jiao Tong University, Shanghai 200240, PRC, State Key Laboratory of Medical Genomics and Shanghai Institute of Hematology Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, PRC, National Engineering Center for Biochip at Shanghai, 201203, PRC, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, PRC, and Department of Nutrition, University of North Carolina at Greensboro, North
| | - Qi Wang
- School of Pharmacy and Shanghai Center for Systems Biomedicine, Shanghai Jiao Tong University, Shanghai 200240, PRC, State Key Laboratory of Medical Genomics and Shanghai Institute of Hematology Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, PRC, National Engineering Center for Biochip at Shanghai, 201203, PRC, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, PRC, and Department of Nutrition, University of North Carolina at Greensboro, North
| | - Ke Wang
- School of Pharmacy and Shanghai Center for Systems Biomedicine, Shanghai Jiao Tong University, Shanghai 200240, PRC, State Key Laboratory of Medical Genomics and Shanghai Institute of Hematology Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, PRC, National Engineering Center for Biochip at Shanghai, 201203, PRC, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, PRC, and Department of Nutrition, University of North Carolina at Greensboro, North
| | - Mingming Su
- School of Pharmacy and Shanghai Center for Systems Biomedicine, Shanghai Jiao Tong University, Shanghai 200240, PRC, State Key Laboratory of Medical Genomics and Shanghai Institute of Hematology Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, PRC, National Engineering Center for Biochip at Shanghai, 201203, PRC, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, PRC, and Department of Nutrition, University of North Carolina at Greensboro, North
| | - Yunping Qiu
- School of Pharmacy and Shanghai Center for Systems Biomedicine, Shanghai Jiao Tong University, Shanghai 200240, PRC, State Key Laboratory of Medical Genomics and Shanghai Institute of Hematology Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, PRC, National Engineering Center for Biochip at Shanghai, 201203, PRC, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, PRC, and Department of Nutrition, University of North Carolina at Greensboro, North
| | - Tie Zhao
- School of Pharmacy and Shanghai Center for Systems Biomedicine, Shanghai Jiao Tong University, Shanghai 200240, PRC, State Key Laboratory of Medical Genomics and Shanghai Institute of Hematology Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, PRC, National Engineering Center for Biochip at Shanghai, 201203, PRC, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, PRC, and Department of Nutrition, University of North Carolina at Greensboro, North
| | - Kai Song
- School of Pharmacy and Shanghai Center for Systems Biomedicine, Shanghai Jiao Tong University, Shanghai 200240, PRC, State Key Laboratory of Medical Genomics and Shanghai Institute of Hematology Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, PRC, National Engineering Center for Biochip at Shanghai, 201203, PRC, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, PRC, and Department of Nutrition, University of North Carolina at Greensboro, North
| | - Xiaoyan Wang
- School of Pharmacy and Shanghai Center for Systems Biomedicine, Shanghai Jiao Tong University, Shanghai 200240, PRC, State Key Laboratory of Medical Genomics and Shanghai Institute of Hematology Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, PRC, National Engineering Center for Biochip at Shanghai, 201203, PRC, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, PRC, and Department of Nutrition, University of North Carolina at Greensboro, North
| | - Mingmei Zhou
- School of Pharmacy and Shanghai Center for Systems Biomedicine, Shanghai Jiao Tong University, Shanghai 200240, PRC, State Key Laboratory of Medical Genomics and Shanghai Institute of Hematology Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, PRC, National Engineering Center for Biochip at Shanghai, 201203, PRC, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, PRC, and Department of Nutrition, University of North Carolina at Greensboro, North
| | - Ping Liu
- School of Pharmacy and Shanghai Center for Systems Biomedicine, Shanghai Jiao Tong University, Shanghai 200240, PRC, State Key Laboratory of Medical Genomics and Shanghai Institute of Hematology Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, PRC, National Engineering Center for Biochip at Shanghai, 201203, PRC, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, PRC, and Department of Nutrition, University of North Carolina at Greensboro, North
| | - Guoping Zhao
- School of Pharmacy and Shanghai Center for Systems Biomedicine, Shanghai Jiao Tong University, Shanghai 200240, PRC, State Key Laboratory of Medical Genomics and Shanghai Institute of Hematology Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, PRC, National Engineering Center for Biochip at Shanghai, 201203, PRC, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, PRC, and Department of Nutrition, University of North Carolina at Greensboro, North
| | - Qinghua Zhang
- School of Pharmacy and Shanghai Center for Systems Biomedicine, Shanghai Jiao Tong University, Shanghai 200240, PRC, State Key Laboratory of Medical Genomics and Shanghai Institute of Hematology Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, PRC, National Engineering Center for Biochip at Shanghai, 201203, PRC, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, PRC, and Department of Nutrition, University of North Carolina at Greensboro, North
| | - Wei Jia
- School of Pharmacy and Shanghai Center for Systems Biomedicine, Shanghai Jiao Tong University, Shanghai 200240, PRC, State Key Laboratory of Medical Genomics and Shanghai Institute of Hematology Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, PRC, National Engineering Center for Biochip at Shanghai, 201203, PRC, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, PRC, and Department of Nutrition, University of North Carolina at Greensboro, North
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Culp P, Choi D, Yin J, Tan S, Chao D, Su M, Sho M, Steinle R, Hsi E, Ramakrishnan V. 508 POSTER PDL192, a novel, humanized antibody to TWEAK receptor, shows potent anti-tumor activity in preclinical models. EJC Suppl 2008. [DOI: 10.1016/s1359-6349(08)72442-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
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163
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Zhang L, Su M, Guo X. Studies on the treatment of brilliant green solution by combination microwave induced oxidation with CoFe2O4. Sep Purif Technol 2008. [DOI: 10.1016/j.seppur.2008.02.022] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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164
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Lin J, Su M, Wang X, Qiu Y, Li H, Hao J, Yang H, Zhou M, Yan C, Jia W. Multiparametric analysis of amino acids and organic acids in rat brain tissues using GC/MS. J Sep Sci 2008; 31:2831-8. [DOI: 10.1002/jssc.200800232] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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165
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Dan M, Su M, Gao X, Zhao T, Zhao A, Xie G, Qiu Y, Zhou M, Liu Z, Jia W. Metabolite profiling of Panax notoginseng using UPLC-ESI-MS. Phytochemistry 2008; 69:2237-2244. [PMID: 18550132 DOI: 10.1016/j.phytochem.2008.04.015] [Citation(s) in RCA: 80] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/13/2007] [Revised: 11/04/2007] [Accepted: 04/22/2008] [Indexed: 05/26/2023]
Abstract
The metabolite profiling of different parts of Panax notoginseng was carried out using rapid ultra-performance liquid chromatography-electrospray ionization mass spectrometry (UPLC-ESI-MS) and multivariate statistical analysis. Principal component analysis (PCA) of the UPLC-ESI-MS data showed a clear separation of compositions among the flower buds, roots and rhizomes of P. notoginseng. The saponins accounting for such variations were identified through the corresponding loadings weights and were further verified by accurate mass, tandem mass and retention times of available standard saponins using UPLC quadrupole time-of-flight mass spectrometer (UPLC-QtofMS). Finally, the influential factors of different metabolic phenotypes of P. notoginseng was elucidated. The currently proposed UPLC-ESI-MS/MS analytical method coupled with multivariate statistical analysis can be further utilized to evaluate chemical components obtained from different parts of the plant and/or the plant of different geographical locations, thereby classifying the medicinal plant resources and potentially elucidating the mechanism of inherent phytochemical diversity.
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Affiliation(s)
- Mo Dan
- School of Pharmacy, Shanghai Jiao Tong University, Shanghai 200240, China
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166
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Tao X, Liu Y, Wang Y, Qiu Y, Lin J, Zhao A, Su M, Jia W. GC-MS with ethyl chloroformate derivatization for comprehensive analysis of metabolites in serum and its application to human uremia. Anal Bioanal Chem 2008; 391:2881-9. [PMID: 18622754 DOI: 10.1007/s00216-008-2220-8] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2008] [Revised: 05/26/2008] [Accepted: 05/30/2008] [Indexed: 11/27/2022]
Abstract
An optimized method based on GC-MS with ethyl chloroformate derivatization has been developed for the comprehensive analysis of endogenous metabolites in serum. Twenty-two reference standards and serum samples were used to validate the proposed method. The correlation coefficient was higher than 0.9900 for each of the standards, and the LOD varied from 125 to 300 pg on-column. The analytical equipment exhibited good repeatability (RSD<10%) for all of the standards. Both the repeatability and the within-48-h stability of the analytical method were satisfactory (RSD<10%) for the 18 metabolites identified in the serum samples. Mean recovery was acceptable for the 18 metabolites, ranging from 70% to 120% with RSDs of less than 10%. Using the optimized protocol and a subsequent multivariate statistical technique, complete differentiation was achieved between the metabolic profile of uremic patients and that of age- and sex-matched normal subjects. Significantly decreased levels of valine, leucine, and isoleucine and increased levels of myristic acid and linoleic acid were observed in the patient group. This work demonstrated that this method is suitable for serum-based metabolic profiling studies.
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Affiliation(s)
- Xiumei Tao
- School of Pharmacy, Shanghai Jiao Tong University, Shanghai, 200240, China
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167
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Su M, Ayzenberg V, Li W. SU-GG-T-488: Dosimetric Parameter Comparison of the Electronic Tissue Compensator Technique with the Conventional Physical Wedge Technique for the Whole Breast Treatment. Med Phys 2008. [DOI: 10.1118/1.2962237] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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168
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Ni Y, Su M, Lin J, Wang X, Qiu Y, Zhao A, Chen T, Jia W. Metabolic profiling reveals disorder of amino acid metabolism in four brain regions from a rat model of chronic unpredictable mild stress. FEBS Lett 2008; 582:2627-36. [PMID: 18586036 DOI: 10.1016/j.febslet.2008.06.040] [Citation(s) in RCA: 140] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2008] [Revised: 06/11/2008] [Accepted: 06/20/2008] [Indexed: 02/02/2023]
Abstract
Chronic stress is closely linked to clinical depression, which could be assessed by a chronic unpredictable mild stress (CUMS) animal model. We present here a GC/MS-based metabolic profiling approach to investigate neurochemical changes in the cerebral cortex, hippocampus, thalamus, and remaining brain tissues. Multi-criteria assessment for multivariate statistics could identify differential metabolites between the CUMS-model rats versus the healthy controls. This study demonstrates that the significantly perturbed metabolites mainly involving amino acids play an indispensable role in regulating neural activity in the brain. Therefore, results obtained from such metabolic profiling strategy potentially provide a unique perspective on molecular mechanisms of chronic stress.
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Affiliation(s)
- Yan Ni
- School of Pharmacy, Shanghai Jiao Tong University, Shanghai, PR China
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169
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Xie G, Plumb R, Su M, Xu Z, Zhao A, Qiu M, Long X, Liu Z, Jia W. Ultra-performance LC/TOF MS analysis of medicinalPanaxherbs for metabolomic research. J Sep Sci 2008; 31:1015-26. [DOI: 10.1002/jssc.200700650] [Citation(s) in RCA: 129] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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170
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Shen Q, Li X, Qiu Y, Su M, Liu Y, Li H, Wang X, Zou X, Yan C, Yu L, Li S, Wan C, He L, Jia W. Metabonomic and metallomic profiling in the amniotic fluid of malnourished pregnant rats. J Proteome Res 2008; 7:2151-7. [PMID: 18348512 DOI: 10.1021/pr700776c] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Epidemiology and studies in animal models have revealed that prenatal malnutrition is highly correlated with abnormal fetal neurodevelopment. We present here a combined metabonomic and metallomic profiling technique to associate the metabolic and trace-elemental composition variations of rat amniotic fluid (AF) in malnourished pregnant rats with the retardation of fetal rat neurodevelopment. The AF samples from three groups of pregnant Sprague-Dawley rats, which were fed either a normal diet, a low-protein diet, or "a famine diet", were subjected to GC/MS and ICP/MS combined with multivariate data analysis (MVDA). PCA scores plot of both GC/MS and ICP/MS data showed similar and unique metabolic signatures of AF in response to the different diets. Rats in the famine group released increased amounts of glycine, inositol, putrescine, and rubidium and decreased amounts of methionine, dopa, tryptophan, glutamine, zinc, cobalt, and selenium in the AF. These discriminable variations in the AF may indicate the abnormality of a number of metabolic pathways in fetal rats including the folate cycle and methionine pathway, the monoamine pathway, and tri-iodothyronine (T3) metabolism. The abnormalities may be the result of metabolites or elemental differences or a combination of both. This study demonstrates the potential of combining profiling of small-molecule metabolites and trace elements to broaden the understanding of biological variations associated with fetal neurodevelopment induced by environmental perturbation.
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Affiliation(s)
- Qing Shen
- School of Pharmacy, Shanghai Jiao Tong University, and Shanghai Xinhua Hospital, Shanghai, People's Republic of China
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171
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Qiu Y, Chen M, Su M, Xie G, Li X, Zhou M, Zhao A, Jiang J, Jia W. Metabolic profiling reveals therapeutic effects of Herba Cistanches in an animal model of hydrocortisone-induced 'kidney-deficiency syndrome'. Chin Med 2008; 3:3. [PMID: 18328110 PMCID: PMC2294126 DOI: 10.1186/1749-8546-3-3] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2007] [Accepted: 03/10/2008] [Indexed: 01/28/2023] Open
Abstract
Background Herba Cistanches (Roucongrong) is effective in treating Shenxu Zheng ('kidney-deficiency syndrome'). However, the mechanisms and systemic metabolic responses to the herbal intervention are unclear. Methods Using GC-MS-based metabolic profiling, we investigated the metabolic responses to Herba Cistanches intervention in a rat model of the hydrocortisone-induced 'kidney-deficiency syndrome'. Results The metabolic profiles of the rats after hydrocortisone injection deviated from the pre-dose metabolic state at different time points, ranging from day 1 to day 10, whereas the metabolic profiles of the rats treated with both hydrocortisone and water extract of Herba Cistanches returned to the pre-dose state on day 10. Conclusion The intervention of Herba Cistanches caused a systemic recovery from the hydrocortisone-induced metabolic perturbation in rats. This study also demonstrates that metabolic profiling is useful in studying therapeutic mechanisms of herbal medicines.
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Affiliation(s)
- Yunping Qiu
- School of Pharmacy, Shanghai Jiao Tong University, Shanghai, China.
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172
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Chen M, Ni Y, Duan H, Qiu Y, Guo C, Jiao Y, Shi H, Su M, Jia W. Mass Spectrometry-Based Metabolic Profiling of Rat Urine Associated with General Toxicity Induced by the Multiglycoside of Tripterygium wilfordiiHook. f. Chem Res Toxicol 2008; 21:288-94. [DOI: 10.1021/tx7002905] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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173
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Lu SM, Su M, Tian DP, Deng WD, Zheng YL, Huang HH, Chen MH, Li XY. Characterization of one newly established esophageal cancer cell line CSEC from a high-incidence area in China. Dis Esophagus 2008; 21:309-15. [PMID: 18477252 DOI: 10.1111/j.1442-2050.2007.00774.x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
The Chaoshan littoral is located in a high-incidence area of esophageal cancer in the south of China. In this study, a new esophageal cancer cell line CSEC was established from a 47-year-old female Chinese patient in this district. The biological characters of the cultured cells were investigated, including morphology, ultrastructure, growth kinetic features, tumorigenicity, expression of tumor-associated antigen and cytogenetic features. CSEC cell line grew continuously with a doubling time of 39.5 h and had been passaged over 80 times. The CSEC cells possessed features of squamous epithelial cells with cytokeratin indicated by immunohistochemical staining and tonofilaments and desmosomes revealed by electron microscopy. Tumorigenicity to severe combined immunodeficient mice was confirmed and the tumors developed revealed well-differentiated squamous cell carcinoma, similar to the origin tumor from which the cell line derived. The cytogenetic analysis demonstrated hypertetraploid karyotypes. Chromosome structure aberrations were common and complicated. Immunohistochemical staining showed that CSEC cells were infected with HPV and over-expressed p53. In summary, the CSEC cell line is a well-differentiated esophageal squamous cell carcinoma cell line from a high-incidence area in southern China. It may provide a useful model for the pathogenesis and therapeutic research of esophageal squamous cell carcinoma.
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Affiliation(s)
- S-M Lu
- Department of Pathology, Shantou University Medical College, Guangdong Province, China
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174
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Xie G, Su M, Li P, Gu X, Yan C, Qiu Y, Li H, Jia W. Analysis of urinary metabolites for metabolomic study by pressurized CEC. Electrophoresis 2007; 28:4459-68. [DOI: 10.1002/elps.200700420] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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175
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Zhang L, Guo X, Yan F, Su M, Li Y. Study of the degradation behaviour of dimethoate under microwave irradiation. J Hazard Mater 2007; 149:675-9. [PMID: 17512659 DOI: 10.1016/j.jhazmat.2007.04.039] [Citation(s) in RCA: 10] [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] [Subscribe] [Scholar Register] [Received: 08/17/2006] [Revised: 04/06/2007] [Accepted: 04/06/2007] [Indexed: 05/15/2023]
Abstract
In this work, the degradation of dimethoate under microwave irradiation assisted advanced oxidation processes (MW/oxidants) were studied. The efficiencies of the degradation of dimethoate in dilute aqueous solutions for a variety of oxidants with or without MW irradiation were compared. The results showed that the synergistic effects between MW and K(2)S(2)O(8) had high degradation efficiency for dimethoate. Simultaneously, UV/TiO(2)/K(2)S(2)O(8) photocatalytic oxidation degradation of dimethoate was investigated. The experimental results indicated that the method of microwave degradation of organic pollutants in the presence of oxidant could reduce reaction time and improve product yield. Microwave irradiation was an advisable choice for treating organic wastewaters and has a widely application perspective for non- or low-transparent and fuscous dye wastewaters.
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Affiliation(s)
- Lei Zhang
- College of Chemistry and Chemical Engineering, Liaoning University, Shenyang 110036, China.
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176
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Ren FL, Guo X, Zhang RJ, Wang SJ, Zuo H, Zhang ZT, Geng D, Yu Y, Su M. Effects of selenium and iodine deficiency on bone, cartilage growth plate and chondrocyte differentiation in two generations of rats. Osteoarthritis Cartilage 2007; 15:1171-7. [PMID: 17490897 DOI: 10.1016/j.joca.2007.03.013] [Citation(s) in RCA: 58] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/03/2006] [Accepted: 03/16/2007] [Indexed: 02/02/2023]
Abstract
OBJECTIVE The purpose of the current study was to investigate the roles of combined selenium and iodine deficiency in bone development as a possible experimental model of Kashin-Beck osteoarthropathy. METHODS Sprague-Dawley rats (n=48) were randomly divided into selenium deficiency (-Se+I), iodine deficiency (+Se-I), combined selenium and iodine deficiency (-Se-I), and selenium and iodine sufficient (+Se+I) groups. Growth of bone and cartilage, and the expression of type X collagen (ColX) and parathyroid hormone-related peptide (PTHrP) were measured in two generations of rats (F(0) and F(1)). RESULTS The tibial length in -Se-I rats was significantly shorter in F(1) generation. In +Se-I of F(1) rats, the thickness of the growth plate cartilage, and the proliferative zone was smaller, while in -Se-I rats the growth plate, and the proliferative and hypertrophic zones were also thinner in F(1) generation. In articular cartilage, ColX expression was increased in the deep zone in -Se-I rats of F(0) generation, and in -Se+I, +Se-I and -Se-I rats of F(1) generation. PTHrP expression was increased in the middle zone of -Se+I, +Se-I and -Se-I rats of both F(0) and F(1) generations. In the growth plate cartilage, ColX and PTHrP were expressed in the hypertrophic zone. ColX expression was significantly weaker in -Se+I and -Se-I rats in both F(0) and F(1) generations, while PTHrP expression was stronger in -Se+I, +Se-I and -Se-I rats in both F(0) and F(1) animals. CONCLUSIONS Combined selenium and iodine deficiency impaired the growth of bone and cartilage. The changes in the expression of ColX and PTHrP induced by combined selenium and iodine deficiency were compatible to measurements of ColX and PTHrP in Kashin-Beck osteoarthropathy.
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Affiliation(s)
- F L Ren
- Department of Public Health, Xi'an Jiaotong University School of Medicine, Xi'an, Shannxi 710061, PR China
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177
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Wang X, Su M, Qiu Y, Ni Y, Zhao T, Zhou M, Zhao A, Yang S, Zhao L, Jia W. Metabolic regulatory network alterations in response to acute cold stress and ginsenoside intervention. J Proteome Res 2007; 6:3449-55. [PMID: 17658780 DOI: 10.1021/pr070051w] [Citation(s) in RCA: 56] [Impact Index Per Article: 3.3] [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: 01/06/2023]
Abstract
Acute stress may trigger systemic biochemical and physiological changes in living organisms, leading to a rapid loss of homeostasis, which can be gradually reinstated by self-regulatory mechanisms and/or drug intervention strategy. However, such a sophisticated metabolic regulatory process has so far been poorly understood, especially from a holistic view. Urinary metabolite profiling of Sprague-Dawley rats exposed to cold temperature (-10 degrees C) for 2 h using GC/MS in conjunction with modern multivariate statistical techniques revealed drastic biochemical changes as evidenced by fluctuations of urinary metabolites and demonstrated the protective effect of total ginsenosides (TGs) in ginseng extracts on stressed rats. The metabonomics approach enables us to visualize significant alterations in metabolite expression patterns as a result of stress-induced metabolic responses and post-stress compensation, and drug intervention. Several major metabolic pathways including catecholamines, glucocorticoids, the tricarboxylic acid (TCA) cycle, tryptophan (nicotinate), and gut microbiota metabolites were identified to be involved in metabolic regulation and compensation required to restore homeostasis.
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Affiliation(s)
- Xiaoyan Wang
- School of Pharmacy, Shanghai Jiao Tong University, Shanghai, 200240, People's Republic of China.
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178
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Abstract
The aim of this study is to investigate the plasticity of human epithelial ovarian cancer cell SKOV3ip and formation of vasculogenic mimicry (VM) in vivo. SKOV3ip was transfected with lentiviral vector carrying green fluorescence protein (GFP). Female nude mice were implanted intraperitoneally with GFP-labled SKOV3ip. When the transplanted tumor reached a volume of approximately 1 cm(3), paraffin-embedded, formaldehyde-fixed tissue was prepared and stained with hematoxylin and eosin (H & E). Tumor tissues were also studied by electron microscopy and fluorescence microscopy. The results of H & E staining, electron microscopy, and fluorescence microscopy indicated SKOV3ip formed patterned networks with erythrocytes in them, in the absence of vascular epithelial cells, which was a sign that SKOV3ip engaged in VM in vivo. Expression of vascular epithelium marker CD31 was investigated by immunohistochemical staining, immunofluorescence assay, semiquantitative reverse transcriptase-polymerase chain reaction (RT-PCR), and flow cytometric analysis (FACS). Factor VIII and vascular endothelial growth factor (VEGF) were also analyzed by FACS. Weak and focal CD31 immunohistochemical staining was found along the channels of tumor cells. Immunofluorescence assay and RT-PCR demonstrated that CD31 was expressed in primary-cultured SKOV3ip. CD31 and Factor VIII, but not VEGF were detected in primary-cultured SKOV3ip by FACS. The present study has shown that human ovarian cancer cell line SKOV3ip may be able to express some specific markers of vascular epithelial cells and has plasticity to form VM in vivo. In the following study, we indicated that hypoxia-inducible factor (HIF)-1alpha inhibitor, rapamycin, could possibly prevent VM and phenotype transformation of SKOV3ip, reflected by down-regulating expression of CD31 and Factor VIII. HIF-1alpha protein expression correlated with CD31 and Factor VIII protein expression in SKOV3ip. These results indicated that VM might be associated with HIF-1alpha.
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MESH Headings
- Analysis of Variance
- Animals
- Blotting, Western
- Cell Line, Tumor
- Disease Models, Animal
- Female
- Flow Cytometry
- Fluorescent Antibody Technique, Indirect
- Gene Expression Regulation, Neoplastic
- Hypoxia-Inducible Factor 1/analysis
- Hypoxia-Inducible Factor 1/metabolism
- Immunohistochemistry
- Mice
- Mice, Inbred BALB C
- Mice, Nude
- Molecular Mimicry
- Neoplasms, Glandular and Epithelial/genetics
- Neoplasms, Glandular and Epithelial/pathology
- Neovascularization, Pathologic/genetics
- Neovascularization, Pathologic/pathology
- Ovarian Neoplasms/genetics
- Ovarian Neoplasms/pathology
- Platelet Endothelial Cell Adhesion Molecule-1/analysis
- Platelet Endothelial Cell Adhesion Molecule-1/metabolism
- Probability
- Random Allocation
- Reverse Transcriptase Polymerase Chain Reaction
- Sirolimus/pharmacology
- Statistics, Nonparametric
- Transfection
- Vascular Endothelial Growth Factor A/analysis
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Affiliation(s)
- M Su
- Department of Gynecology, Obstetrics and Gynecology Hospital of Fudan University, Shanghai, P.R. China
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179
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Jiao Y, Su M, Chen M, Jia W, Chou Y, Huang Z, Yang N, Tong W. LC/ESI-MS method for the determination of trimetazidine in human plasma: Application to a bioequivalence study on Chinese volunteers. J Pharm Biomed Anal 2007; 43:1804-7. [PMID: 17208404 DOI: 10.1016/j.jpba.2006.11.040] [Citation(s) in RCA: 20] [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] [Received: 07/11/2006] [Revised: 11/23/2006] [Accepted: 11/29/2006] [Indexed: 11/28/2022]
Abstract
A rapid liquid chromatography electrospray ionization mass spectrometry (LC/ESI-MS) method with good sensitivity and specificity has been developed and validated for the identification and quantification of trimetazidine in human plasma. Trimetazidine and lidocaine (internal standard) were isolated from plasma samples by protein precipitation with methanol. The chromatographic separation was accomplished on a Xterra MS C18 Column (150 mm x 4.6 mm, 5 microm particle size) with the mobile phase consisting of methanol and water (40:60, v/v) (pH 2.0, adjusted with trifluoroacetic acid), and the flow rate was set at 0.6 mL/min. Detection was performed on a single quadruple mass spectrometer by selected ion monitoring (SIM) mode (m/z 267.0 for trimetazidine and m/z 235.0 for lidocaine) with the retention time at about 3.47 and 5.05 min, respectively. The calibration curve for trimetazidine was satisfactory with regression coefficient 0.9995 over the range of 2.5-100 ng/mL in the plasma. The LOQ (S/N=10) was accordingly 2.5 ng/mL. The intra-day and inter-day precision expressed as relative standard deviation was 2.83-6.10% and 4.83-5.82%. The method was successfully applied to investigate the bioequivalence between two kinds of tablets (test versus reference product) in 19 healthy male Chinese volunteers. After a single 20 mg dose for the test and reference product, the resulting mean of major pharmacokinetic parameters such as AUC(0-24), AUC(0-infinity), Cmax, Tmax and t(1/2) of trimetazidine were (673.1+/-117.6 ng h mL(-1) versus 652.3+/-121.9 ng h mL(-1)), (717.1+/-120.9 ng h mL(-1) versus 692+/-128.6 ng h mL(-1)), (74.85+/-12.13 ng mL(-1) versus 71.93+/-14.32 ng mL(-1)), (2.312+/-0.663 h versus 2.211+/-0.608 h) and (4.785+/-0.919 h versus 4.740+/-0.823 h), respectively, indicating that these two kinds of tablets were bioequivalent in the Chinese population.
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Affiliation(s)
- Yang Jiao
- School of Pharmacy, Shanghai Jiao Tong University, Shanghai 200030, China
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180
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Li H, Ni Y, Su M, Qiu Y, Zhou M, Qiu M, Zhao A, Zhao L, Jia W. Pharmacometabonomic Phenotyping Reveals Different Responses to Xenobiotic Intervention in Rats. J Proteome Res 2007; 6:1364-70. [PMID: 17311441 DOI: 10.1021/pr060513q] [Citation(s) in RCA: 73] [Impact Index Per Article: 4.3] [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: 01/04/2023]
Abstract
In conventional pharmacological studies, intersubject differences within an animal strain are normally neglected, leading to variations in pharmacological outcomes in response to the same stimulus. Using two classical experimental models, the Streptozotocin (STZ)-induced diabetic model of Wistar rats and the high-energy, diet-induced obesity model of Sprague-Dawley rats, we demonstrate that the different outcomes of STZ or diet intervention are closely associated with variation in predose (baseline) urinary metabolic profiles of the rats. The pharmacometabonomic analysis of predose metabolic profiles indicates that the intersubject difference is, to a great extent, associated with gut-microbiota, which predisposes different pathophysiological outcomes upon diet alteration or chemical stimulus. We hypothesize that there may exist an important association between observations from these two models and the obese/diabetic human population in that subtle variations in metabolic phenotype may predetermine different systems' responses to xenobiotic perturbation, ultimately leading to varied pathophysiological processes. Results from two independent models also suggest that the pharmacometabonomics approach is of great importance in the study of pharmacology and clinical drug evaluations, where endogenous metabolite signatures of predose individuals should be taken into consideration to minimize intersubject difference and the resulting variation in the postdose pharmacological outcomes.
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Affiliation(s)
- Houkai Li
- Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, PRC
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181
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Ni Y, Su M, Qiu Y, Chen M, Liu Y, Zhao A, Jia W. Metabolic profiling using combined GC-MS and LC-MS provides a systems understanding of aristolochic acid-induced nephrotoxicity in rat. FEBS Lett 2007; 581:707-11. [PMID: 17274990 DOI: 10.1016/j.febslet.2007.01.036] [Citation(s) in RCA: 95] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2006] [Revised: 12/25/2006] [Accepted: 01/14/2007] [Indexed: 11/16/2022]
Abstract
We present here a combined GC-MS and LC-MS metabolic profiling approach to unraveling the pathological outcomes of aristolochic acid (AA)-induced nephrotoxicity. Urine samples were analyzed by GC-MS and LC-MS in combination with pattern recognition techniques, e.g. principal component analysis (PCA), orthogonal projection to latent structure-discriminant analysis. The work indicates that AA-induced acute renal toxicity as evidenced by histopathological examinations could be characterized by systemic disturbance of metabolic network involving free fatty acids generation, energy and amino acids metabolism, and alteration in the structure of gut microbiota. Therefore, this method is potentially applicable to the toxicological study, providing a comprehensive understanding of systems response to xenobiotic intervention.
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Affiliation(s)
- Yan Ni
- Shanghai University of Traditional Chinese Medicine, Shanghai, PR China
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182
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Yang Y, Su M. Operation of cryostat vacuum vessel of HT-7 superconducting tokamak. Fusion Engineering and Design 2006. [DOI: 10.1016/j.fusengdes.2006.07.021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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183
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Qiu Y, Su M, Liu Y, Chen M, Gu J, Zhang J, Jia W. Application of ethyl chloroformate derivatization for gas chromatography-mass spectrometry based metabonomic profiling. Anal Chim Acta 2006; 583:277-83. [PMID: 17386556 DOI: 10.1016/j.aca.2006.10.025] [Citation(s) in RCA: 123] [Impact Index Per Article: 6.8] [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: 08/01/2006] [Revised: 09/27/2006] [Accepted: 10/13/2006] [Indexed: 12/23/2022]
Abstract
A new combined gas chromatography and mass spectrometry (GC-MS) method has been developed suitable for the urine sample treatment in aqueous phase with ethyl chloroformate (ECF) derivatization agents. The method has been extensively optimized and validated over a broad range of different compounds and urine samples. Analysis of test metabolite derivatives, containing spiked standards, or rat urine exhibited acceptable linearity, satisfactory intra-batch precision (repeatability) and stability, relative standard deviations (R.S.D.) less than 10 and 15% within 48 h, respectively. The quantification limits were 150-300 pg on column for most metabolites. Recovery of several representative compounds, at different concentrations, ranged from 70 to 120%, with R.S.D. better than 10% for rat urine. We were able to generally eliminate potentially confounding variables such as medium complexity, different urea concentrations, and/or derivatization procedure variability. Metabonomic profiling of 1,2-dimethylhydrazine (DMH)-induced precancerous colon rat urine using GC-MS with ECF derivatization was performed to evaluate the proposed method. The analytical variation of the method was smaller than the biological variation in the rat urine samples, proving the suitability of the method to analyze differences in the metabonome of a living system with perturbed metabolic network. Thus, the proposed GC-MS analytical method is reliable to analyze a large variety of metabolites and can be used to investigate human pathology including disease onset, progression, and mortality.
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Affiliation(s)
- Y Qiu
- School of Pharmacy, Shanghai Jiao Tong University, Shanghai, 200240, China
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184
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185
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Juh R, Su M, Lee C, Suh T, Nalcioglu O. SU-FF-I-100: Investigate Between the Voxel Based Morphometry and Region of Interest Study in Alzheimer's Disease. Med Phys 2006. [DOI: 10.1118/1.2240780] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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186
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Juh R, Su M, Lee C, Suh T, Nalcioglu O. SU-FF-I-71: Diffusion Tensor Imaging Analysis Using Mapping Analysis in Temporal Lobe Epilepsy. Med Phys 2006. [DOI: 10.1118/1.2240751] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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187
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Li T, Szal M, Su M, Torres C, Mazzilli T, Papadopoulos D, Chu K. SU-FF-T-203: Effect of Non-Uniform Source Strength On I-125 Prostate Implant Dosimetry. Med Phys 2006. [DOI: 10.1118/1.2241125] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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188
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Su M, Torres C, Grant D, Kim T, Papadopoulos D. SU-FF-T-353: Parameters Study for the Severity Acute Radiation Induced Skin Reaction for the Breast Cancer Patients. Med Phys 2006. [DOI: 10.1118/1.2241274] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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189
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Su M, Szal M, Li T. SU-FF-T-96: Analyzing Tertiary Multileaf Collimators Position Effect On the Dose Distribution in Irradiated Field Edge. Med Phys 2006. [DOI: 10.1118/1.2241021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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190
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Chen M, Su M, Zhao L, Jiang J, Liu P, Cheng J, Lai Y, Liu Y, Jia W. Metabonomic study of aristolochic acid-induced nephrotoxicity in rats. J Proteome Res 2006; 5:995-1002. [PMID: 16602708 DOI: 10.1021/pr050404w] [Citation(s) in RCA: 96] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
This paper describes a metabonomic study characterizing the nephrotoxicity induced by aristolochic acid (AA), a suspected kidney toxicant. For these studies, we examined the biochemical compositions of AA-treated rat urine using LC-MS and pattern recognition methods. The biochemical and histological patterns of rat groups treated with different AA sources showed distinct differences from those of the control group. Certain metabolic pathways, such as homocysteine formation and the folate cycle were significantly accelerated, while others, including arachidonic acid biosynthesis, were decreased. A subset-validation procedure using linear discriminant analysis (LDA) and selected predictive variables indicated that approximately 95% of the treated and nontreated rat urine samples were classified correctly into their respective treatment groups. The results suggested that this metabonomic approach is a promising methodology for the rapid in vivo screening of nephrotoxicity associated with ingesting multi-ingredient medicinal herb supplements, and provides a valid method for comprehending the chemical-induced perturbations in the metabolic network and the networked lesions.
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Affiliation(s)
- Minjun Chen
- School of Pharmacy, Shanghai Jiao Tong University, Shanghai 200030, China
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191
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Man K, Su M, Ng KT, Lo CM, Zhao Y, Ho JW, Sun CK, Lee TK, Fan ST. Rapamycin attenuates liver graft injury in cirrhotic recipient--the significance of down-regulation of Rho-ROCK-VEGF pathway. Am J Transplant 2006; 6:697-704. [PMID: 16539626 DOI: 10.1111/j.1600-6143.2005.01231.x] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
To investigate whether rapamycin could attenuate hepatic I/R injury in a cirrhotic rat liver transplantation model, we applied a rat orthotopic liver transplantation model using 100% or 50% of liver grafts and cirrhotic recipients. Rapamycin was given (0.2 mg/kg, i.v.) at 30 min before graft harvesting in the donor and 24 h before operation, 30 min before total hepatectomy and immediately after reperfusion in the recipient. Rapamycin significantly improved small-for-size graft survival from 8.3% (1/12) to 66.7% (8/12) (p = 0.027). It also increased 7-day survival rates of whole grafts (58.3%[7/12] vs. 83.3%[10/12], p = 0.371). Activation of hepatic stellate cells was mainly found in small-for-size grafts during the first 7 days after liver transplantation. Rapamycin suppressed expression of smooth muscle actin, which is a marker of hepatic stellate cell activation, especially in small-for-size grafts. Intragraft protein expression and mRNA levels of vascular endothelial growth factor (VEGF) were down-regulated by rapamycin at 48 h both in whole and small-for-size grafts. Consistently, mRNA levels and protein expression of Rho and ROCK I were decreased by rapamycin during the 48 h after liver transplantation. In conclusion, rapamycin attenuated graft injury in a cirrhotic rat liver transplantation model by suppression of hepatic stellate cell activation, related to down-regulation of Rho-ROCK-VEGF pathway.
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Affiliation(s)
- K Man
- Centre for the Study of Liver Disease and Department of Surgery, The University of Hong Kong, Pokfulam, Hong Kong.
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192
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Abstract
We compared whole genomic changes in cell lines generated from esophageal squamous cell carcinoma (ESCC) and esophageal adenocarcinoma (EAC). To do so, we investigated chromosomal DNA copy number changes in four EAC cell lines and three ESCC cell lines using comparative genomic hybridization (CGH). Frequent gains of chromosome 5p, 8q, and 20q occurred in both ESCC and EAC cell lines, but gains of 3q, 5q, and 9q were mainly seen in ESCC cell lines; gain of chromosome 10q25-qtel was mainly seen in EAC cell lines. It was noticeable that 18q12 loss existed in 2 EAC and 1 ESCC cell lines in our study. The chromosomal abnormalities common to all of the cell lines may help to identify candidate genes related to both EAC and ESCC. The chromosome aberrations mainly seen in either EAC or ESCC cell lines are in keeping with their known different etiology and may lead to the identification of genes important for disease specific pathogenesis.
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MESH Headings
- Adenocarcinoma/genetics
- Adenocarcinoma/pathology
- Base Sequence
- Biomarkers, Tumor/genetics
- Carcinoma, Squamous Cell/genetics
- Carcinoma, Squamous Cell/pathology
- Cell Line, Tumor
- Chromosome Aberrations
- Chromosome Mapping
- Chromosomes, Human, Pair 20
- Chromosomes, Human, Pair 5
- Chromosomes, Human, Pair 8
- Esophageal Neoplasms/genetics
- Esophageal Neoplasms/pathology
- Humans
- Image Processing, Computer-Assisted
- In Situ Hybridization, Fluorescence
- Microscopy, Fluorescence
- Nucleic Acid Hybridization
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Affiliation(s)
- M Su
- Department of Pathology, (Key Immunopathology Laboratory, Guangdong Province) Shantou University Medical College, Shantou, China.
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193
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Pelli DG, Su M, Berger TD, Majaj NJ, Martelli M, Guo S, Tillman K. Crowding, shuffling, and capitalizing reveal three processes in reading. J Vis 2005. [DOI: 10.1167/5.8.806] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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194
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Su M, Qiu Y, Jia W. A pilot study of antitumor effect of gallium ethylenediaminetetramethylene phosphonate [Ga(III)-EDTMP] in tumor-bearing rats. Adv Ther 2005; 22:297-306. [PMID: 16418139 DOI: 10.1007/bf02850079] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [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: 10/22/2022]
Abstract
The inhibitory effects of gallium ethylenediamine-N,N,N',N'-tetrakismethylene phosphonate [Ga(III)-EDTMP] was studied on a malignant tumor and metastatic bone lesion model induced with Walker carcinosarcoma 256 (WCS 256) in Wistar rats weighing 120 to 135 g. A water-soluble chelate, Ga(III)-EDTMP, was prepared for injection in a tumor-bearing model. Radiographic analysis at 14 days indicated that the bone invasion and osteolysis were markedly reduced in animals treated with Ga(III)-EDTMP. The calculated tumor inhibitory rates were 33.16+/-0.38% at a dosage of 5 mg/kg and 47.75+/-0.74% at 10 mg/kg. Biochemical markers such as serum calcium decreased by 23% (P<.05) and by 31% (P<.01) at dosages of 5 mg/kg and 10 mg/kg, respectively, whereas serum alkaline phosphatase (ALPase) activity decreased by 47% (P<.01) and 69% (P<.01) at the 2 dosages.
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Affiliation(s)
- Mingming Su
- School of Pharmacy, Shanghai Jiao Tong University, Shanghai, China
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195
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Su M, Li T, Tong S, Grant D, Farhangi E, Tapen E, Chu K. SU-FF-T-249: Small Electron Field Cutout Output Factors Measured Using a 2D Ion Chamber Array Compared to Radiographic Film. Med Phys 2005. [DOI: 10.1118/1.1997977] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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196
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Li T, Tong S, Su M, Grant D, Torres C, Kim T, Chu K. SU-FF-T-188: Correlation Between in Vivo Electron Diodes Response and Nominal Surface Dose for Broad Electron Beams. Med Phys 2005. [DOI: 10.1118/1.1997890] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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197
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Sun WH, Yang JW, Zhang JP, Gaevski ME, Chen CQ, Li JW, Gong Z, Su M, Asif Khan M. n-Al0.75
Ga0.25
N epilayers for 250 nm emission ultraviolet light emitting diodes. ACTA ACUST UNITED AC 2005. [DOI: 10.1002/pssc.200461561] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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198
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Abstract
A novel repositioning approach is described for repeated observations of a specimen at a close proximal location in the atomic force microscope. The approach is similar to keystone architecture, whereby the repositioning is achieved by forming a male structured base for the specimen, and a corresponding female counterpart as the frame. For the combination of an acrylic acid frame and a metal base, 90% translation shifts are less than 10 microm, and almost all angular disorientations are within +3 degrees to -3 degrees . Nanometre-scale surface features can be relocated easily and reliably even after 40 imaging-removal-imaging cycles, dipping the specimen in solutions or heating up to 500 degrees C.
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Affiliation(s)
- M Su
- Department of Materials Science and Engineering, Institute for Nanotechnology, Northwestern University, Evanston, IL 60208, USA
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199
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Abstract
During the process of developing a slow-release formulation of indapamide, researchers created a drug-containing pellet coated with Eudragit RS100 (Rohm GMbH & Co. KG, Darmstadt, Germany) to control the rate at which the drug was released. The two main variables were the agglomerants used in the pellet preparation and the amount of Eudragit RS100 used to coat them. The optimal outcome was indicated by the greatest number of drug-containing pellets recovered through an 18- to 24-mesh sieve and a satisfactory 24-hour release curve. The kinetics of dissolution fit the Higuchi kinetics model. Stability tests of the drug pellets showed no notable changes in the rate of drug release, related substances (mean byproducts or impurities from interactions or decompositions), and drug content.
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Affiliation(s)
- Wei Jia
- School of Pharmacy, Shanghai Jiao Tong University, 1954 Huashan Road, Shanghai 200030, PR China
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200
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Li M, Healy DR, Li Y, Simmons HA, Su M, Jee WSS, Shen VW, Thompson DD. Alfacalcidol prevents age-related bone loss and causes an atypical pattern of bone formation in aged male rats. J Musculoskelet Neuronal Interact 2004; 4:22-32. [PMID: 15615075] [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: 05/01/2023]
Abstract
The current study was designed to investigate the skeletal effects of alfacalcidol in aged rats. Eighteen-month-old male rats were treated with 0, 0.1, or 0.2 microg/kg/d of alfacalcidol by daily oral gavage, 5 days/week for 12 weeks. At the beginning of the treatments, one group of rats was euthanized to serve as a baseline control. At the end of the study, the second lumbar vertebrae and the right tibial diaphysess were processed for bone histomorphometric analysis. The fourth lumbar vertebrae were subjected to strength testing. The control group of rats at 21 months of age had decreased serum testosterone levels and decreased cancellous bone mass associated with increased bone turnover on the trabecular surface. The older rats had increased bone turnover on the endocortical surface and decreased bone formation on the periosteal surface compared with the 18-month group. In contrast, alfacalcidol treatment increased cancellous and cortical bone mass in aged male rats. Trabecular bone resorption was decreased whereas bone formation was maintained or increased in the rats treated with alfacalcidol. In addition, endocortical bone formation was decreased whereas periosteal bone formation was increased in the rats treated with alfacalcidol compared with vehicle-treated rats. Marrow trabecular bone area was increased by alfacalcidol treatment in tibial diaphyses. Furthermore, bone strength of the lumbar vertebral body was increased after alfacalcidol treatment. An atypical pattern of bone formation on endosteal bone surfaces was seen in the rats treated with alfacalcidol. The atypical bone formation is characterized by small, focal packets of newly formed bone on trabecular and endocortical bone surfaces. This gave the appearance of the formation of "bone buds" emanating from trabecular surfaces. These bony outgrowths were mineralized and demonstrated significant fluorochrome label indicating recent mineralization. Also, lamellae of the bony buds did not run parallel to those of the trabecular plate to which they are attached. Arrest lines presented in most of the "bone buds". In summary, alfacalcidol treatment increased cancellous and cortical bone mass and improved bone strength, resulting in the prevention of age-related bone loss in aged male rats. An atypical pattern of bone formation observed in this study may be a result of minimodeling based bone formation stimulated by alfacalcidol treatment.
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Affiliation(s)
- M Li
- Osteoporosis Research, Department of Cardiovascular and Metabolic Diseases, Pfizer Global Research and Development, Groton, CT 06340, USA.
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