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Zhang QY, Jin B, Feng Y, Qian K, Wang H, Wan C, Xu PF, Zhang M, Jiang CM. [Etiological diagnostic value of metagenomic next-generation sequencing in peritoneal dialysis-related peritonitis]. Zhonghua Gan Zang Bing Za Zhi 2023; 39:8-12. [PMID: 36776009 DOI: 10.3760/cma.j.cn441217-20220729-00748] [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: 02/14/2023]
Abstract
Objective: To explore the etiological diagnostic value of metagenomic next-generation sequencing (mNGS) in peritoneal dialysis (PD)-related peritonitis. Methods: The study was a retrospective cohort study. The clinical data of patients with PD-related peritonitis who were treated and underwent microbial cultivation and mNGS test at the same time from June 2020 to July 2021 in the Affiliated Drum Tower Hospital, Medical School of Nanjing University were analyzed. The positive rate, detection time and consistency between mNGS test and traditional microbial culture were compared. Results: A total of 18 patients with age of (50.4±15.4) years old and median dialysis time of 34.0 (12.4, 62.0) months were enrolled in the study, including 11 males and 7 females. Pathogenic microorganisms were isolated in 17 patients by mNGS test, with a positive rate of 17/18, which was higher than 13/18 of microbial culture, but the difference was not statistically significant (P=0.219). Both mNGS test and microbial culture isolated positive pathogenic bacteria in 12 patients, and mNGS test isolated the same types of pathogenic bacteria as microbial cultivation did in 11 patients. In five patients with negative microbial culture, mNGS test also isolated pathogenic microorganisms, including 3 cases of Staphylococcus epidermidis, 1 case of Mycobacterium tuberculosis and 1 case of Ureaplasma urealyticum. In 1 patient, microbial culture isolated pathogenic bacteria (Escherichia coli) whereas mNGS test did not. The detection time of mNGS was 25.0 (24.0, 27.0) h, which was significantly shorter than 89.0 (72.8, 122.0) h of microbial culture (Z=3.726, P<0.001). Conclusions: mNGS test can improve the detection rate of pathogenic microorganisms in PD-related peritonitis and greatly shorten the detection time, and has good consistency with microbial culture. mNGS may provide a new approach for pathogen identification of PD-related peritonitis, especially refractory peritonitis.
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Affiliation(s)
- Q Y Zhang
- Department of Nephrology, the Affiliated Drum Tower Hospital, Medical School of Nanjing University, Nanjing 210008, China
| | - B Jin
- Department of Nephrology, the Affiliated Drum Tower Hospital, Medical School of Nanjing University, Nanjing 210008, China
| | - Y Feng
- Department of Nephrology, the Affiliated Drum Tower Hospital, Medical School of Nanjing University, Nanjing 210008, China
| | - K Qian
- Department of Nephrology, the Affiliated Drum Tower Hospital, Medical School of Nanjing University, Nanjing 210008, China
| | - H Wang
- Department of Nephrology, the Affiliated Drum Tower Hospital, Medical School of Nanjing University, Nanjing 210008, China
| | - C Wan
- Department of Nephrology, the Affiliated Drum Tower Hospital, Medical School of Nanjing University, Nanjing 210008, China
| | - P F Xu
- Department of Nephrology, the Affiliated Drum Tower Hospital, Medical School of Nanjing University, Nanjing 210008, China
| | - M Zhang
- Department of Nephrology, the Affiliated Drum Tower Hospital, Medical School of Nanjing University, Nanjing 210008, China
| | - C M Jiang
- Department of Nephrology, the Affiliated Drum Tower Hospital, Medical School of Nanjing University, Nanjing 210008, China
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Fang XY, Zhan YX, Zhou XM, Wu LN, Lin J, Yi YT, Jiang CM, Wang J, Liu J. CXCL12/CXCR4 Mediates Orthodontic Root Resorption via Regulating the M1/M2 Ratio. J Dent Res 2021; 101:569-579. [PMID: 34847760 DOI: 10.1177/00220345211050324] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
Mechanical force-induced external root resorption is a major clinical side effect of orthodontic treatment. Recent work has revealed that M1 macrophages play a vital role in promoting orthodontic root resorption (ORR), but the mechanism of how mechanical force stimulation increases the M1/M2 macrophage ratio in periodontal tissue is poorly understood. In the current study, we showed that C-X-C motif chemokine 12 (CXCL12)+ periodontal ligament cells (PDLCs) and C-X-C chemokine receptor type 4 (CXCR4)+ monocytes in the periodontal ligament (PDL) were significantly increased after force application with ongoing root resorption, and these effects were partially rescued after force removal in mice. The expression of CXCL12 in PDLCs was increased by force stimulation in a time- and intensity-dependent manner in vitro. Blockage of the CXCL12/CXCR4 axis using CXCR4 antagonist AMD3100 was sufficient to alleviate ORR and reverse the force-enhanced M1/M2 macrophage ratio. Further mechanism exploration showed that Ly6Chi inflammatory monocytes homed in a CXCL12/CXCR4 axis-dependent manner. The number and proportion of CD11b+ Ly6Chi inflammatory monocytes in cervical lymph nodes were significantly increased by force loading, accompanied by decreased CD11b+ Ly6Chi monocytes in the blood. These changes were blunted by intraperitoneal injection of AMD3100. In addition, blockage of the CXCL12/CXCR4 axis effectively reversed M2 suppression and promoted M1 polarization. Collectively, results indicate that force-induced CXCL12/CXCR4 axis mediates ORR by increasing the M1/M2 ratio in periodontal tissues through attracting Ly6Chi inflammatory monocytes and modulating macrophage polarization. The results also imply that AMD3100 is potentially inhibitory to root resorption.
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Affiliation(s)
- X Y Fang
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, China.,Lab for Aging Research, State Key Laboratory of Biotherapy, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Y X Zhan
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, China.,College & Hospital of Stomatology, Guangxi Medical University, Nanning, Guangxi, China
| | - X M Zhou
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, China.,Lab for Aging Research, State Key Laboratory of Biotherapy, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - L N Wu
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, China
| | - J Lin
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, China
| | - Y T Yi
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, China
| | - C M Jiang
- Department of Orthodontics, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - J Wang
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, China
| | - J Liu
- Lab for Aging Research, State Key Laboratory of Biotherapy, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, Sichuan, China.,Laboratory of Stem Cell Biology, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, Sichuan, China
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3
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Qiao XL, Dong Y, Feng XY, Wang HQ, Jiang CM. Mechanism of high-fat diet-induced non-alcoholic fatty liver disease. J BIOL REG HOMEOS AG 2019; 33:163-167. [PMID: 30666860] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Affiliation(s)
- X L Qiao
- Department of Digestive Medicine, The Second Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Y Dong
- Department of Digestive Medicine, The Second Affiliated Hospital of Dalian Medical University, Dalian, China
| | - X Y Feng
- Department of Digestive Medicine, The Second Affiliated Hospital of Dalian Medical University, Dalian, China
| | - H Q Wang
- Department of Digestive Medicine, The Second Affiliated Hospital of Dalian Medical University, Dalian, China
| | - C M Jiang
- Department of Digestive Medicine, The Second Affiliated Hospital of Dalian Medical University, Dalian, China
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Abstract
The dental follicle (DF), most often associated with unerupted teeth, is a condensation of ectomesenchymal cells that surrounds the tooth germ in early stages of tooth development. In the present study, we aim to isolate epithelial stem-like cells from the human DF and explore their potential differentiation into salivary gland (SG) cells. We demonstrated the expression of stem cell-related genes in the epithelial components of human DF tissues, and these epithelial progenitor cells could be isolated and ex vivo expanded in a reproducible manner. The human DF-derived epithelial cells possessed clonogenic and sphere-forming capabilities, as well as expressed a panel of epithelial stem cell-related genes, thus conferring stem cell properties (hDF-EpiSCs). When cultured under in vitro 3-dimensional induction conditions, hDF-EpiSCs were capable to differentiate into SG acinar and duct cells. Furthermore, transplantation of hDF-EpiSC-loaded native de-cellularized rat parotid gland scaffolds into the renal capsule of nude mice led to the differentiation of transplanted hDF-EpiSCs into salivary gland-like cells. These findings suggest that hDF-EpiSCs might be a promising source of epithelial stem cells for the development of stem cell-based therapy or bioengineering SG tissues to repair/regenerate SG dysfunction.
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Affiliation(s)
- Q L Xu
- 1 Department of Oral & Maxillofacial Surgery & Pharmacology, University of Pennsylvania School of Dental Medicine, Philadelphia, PA, USA
| | - A Furuhashi
- 1 Department of Oral & Maxillofacial Surgery & Pharmacology, University of Pennsylvania School of Dental Medicine, Philadelphia, PA, USA.,2 Section of Implant and Rehabilitative Dentistry, Division of Oral Rehabilitation, Faculty of Dental Science, Kyushu University, Fukuoka, Japan
| | - Q Z Zhang
- 1 Department of Oral & Maxillofacial Surgery & Pharmacology, University of Pennsylvania School of Dental Medicine, Philadelphia, PA, USA
| | - C M Jiang
- 1 Department of Oral & Maxillofacial Surgery & Pharmacology, University of Pennsylvania School of Dental Medicine, Philadelphia, PA, USA
| | - T-H Chang
- 1 Department of Oral & Maxillofacial Surgery & Pharmacology, University of Pennsylvania School of Dental Medicine, Philadelphia, PA, USA
| | - A D Le
- 1 Department of Oral & Maxillofacial Surgery & Pharmacology, University of Pennsylvania School of Dental Medicine, Philadelphia, PA, USA.,3 Department of Oral & Maxillofacial Surgery, Penn Medicine Hospital of the University of Pennsylvania, Philadelphia, PA, USA
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Yang Y, Tang RJ, Li B, Wang HH, Jin YL, Jiang CM, Bao Y, Su HY, Zhao N, Ma XJ, Yang L, Chen SL, Cheng XH, Zhang HX. Overexpression of a Populus trichocarpa H+-pyrophosphatase gene PtVP1.1 confers salt tolerance on transgenic poplar. Tree Physiol 2015; 35:663-77. [PMID: 25877769 DOI: 10.1093/treephys/tpv027] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/07/2015] [Accepted: 03/08/2015] [Indexed: 05/20/2023]
Abstract
The Arabidopsis vacuolar H(+)-pyrophosphatase (AVP1) has been well studied and subsequently employed to improve salt and/or drought resistance in herbaceous plants. However, the exact function of H(+)-pyrophosphatase in woody plants still remains unknown. In this work, we cloned a homolog of type I H(+)-pyrophosphatase gene, designated as PtVP1.1, from Populus trichocarpa, and investigated its function in both Arabidopsis and poplar. The deduced translation product PtVP1.1 shares 89.74% identity with AVP1. Semi-quantitative reverse transcription polymerase chain reaction (RT-PCR) and quantitative real-time PCR analyses revealed a ubiquitous expression pattern of PtVP1.1 in various tissues, including roots, stems, leaves and shoot tips. Heterologous expression of PtVP1.1 rescued the retarded-root-growth phenotype of avp1, an Arabidopsis knock out mutant of AVP1, on low carbohydrate medium. Overexpression of PtVP1.1 in poplar (P. davidiana × P. bolleana) led to more vigorous growth of transgenic plants in the presence of 150 mM NaCl. Microsomal membrane vesicles derived from PtVP1.1 transgenic plants exhibited higher H(+)-pyrophosphatase hydrolytic activity than those from wild type (WT). Further studies indicated that the improved salt tolerance was associated with a decreased Na(+) and increased K(+) accumulation in the leaves of transgenic plants. Na(+) efflux and H(+) influx in the roots of transgenic plants were also significantly higher than those in the WT plants. All these results suggest that PtVP1.1 is a functional counterpart of AVP1 and can be genetically engineered for salt tolerance improvement in trees.
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Affiliation(s)
- Y Yang
- College of Agriculture, Ludong University, 186 Hongqizhong Road, Yantai, China 264025 National Key Laboratory of Plant Molecular Genetics, Shanghai Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, 300 Fenglin Road, Shanghai, China 200032
| | - R J Tang
- National Key Laboratory of Plant Molecular Genetics, Shanghai Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, 300 Fenglin Road, Shanghai, China 200032 Present address: Department of Plant and Microbial Biology, University of California, Berkeley, CA 94720, USA
| | - B Li
- National Key Laboratory of Plant Molecular Genetics, Shanghai Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, 300 Fenglin Road, Shanghai, China 200032
| | - H H Wang
- National Key Laboratory of Plant Molecular Genetics, Shanghai Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, 300 Fenglin Road, Shanghai, China 200032
| | - Y L Jin
- National Key Laboratory of Plant Molecular Genetics, Shanghai Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, 300 Fenglin Road, Shanghai, China 200032
| | - C M Jiang
- National Key Laboratory of Plant Molecular Genetics, Shanghai Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, 300 Fenglin Road, Shanghai, China 200032
| | - Y Bao
- National Key Laboratory of Plant Molecular Genetics, Shanghai Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, 300 Fenglin Road, Shanghai, China 200032
| | - H Y Su
- College of Agriculture, Ludong University, 186 Hongqizhong Road, Yantai, China 264025
| | - N Zhao
- College of Biological Sciences and Technology, Beijing Forestry University, 35 Qinghua-East Road, Beijing, China 100083
| | - X J Ma
- College of Biological Sciences and Technology, Beijing Forestry University, 35 Qinghua-East Road, Beijing, China 100083
| | - L Yang
- College of Life Sciences, Nanjing University, 22 Hankou Road, Nanjing, China 210093
| | - S L Chen
- College of Biological Sciences and Technology, Beijing Forestry University, 35 Qinghua-East Road, Beijing, China 100083
| | - X H Cheng
- College of Agriculture, Ludong University, 186 Hongqizhong Road, Yantai, China 264025
| | - H X Zhang
- College of Agriculture, Ludong University, 186 Hongqizhong Road, Yantai, China 264025 National Key Laboratory of Plant Molecular Genetics, Shanghai Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, 300 Fenglin Road, Shanghai, China 200032
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Jiang CM, Liu J, Zhao JY, Xiao L, An S, Gou YC, Quan HX, Cheng Q, Zhang YL, He W, Wang YT, Yu WJ, Huang YF, Yi YT, Chen Y, Wang J. Effects of hypoxia on the immunomodulatory properties of human gingiva-derived mesenchymal stem cells. J Dent Res 2014; 94:69-77. [PMID: 25403565 DOI: 10.1177/0022034514557671] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
The environment of bone marrow mesenchymal stem cells (MSCs) is hypoxic, which plays an important role in maintaining their self-renewal potential and undifferentiated state. MSCs have been proven to possess immunomodulatory properties and have been used clinically to treat autoimmune diseases. Here, we tested the effects of hypoxia on the immunomodulatory properties of MSCs and examined its possible underlying mechanisms. We found that hypoxic stimulation promoted the immunomodulatory properties of human gingiva-derived mesenchymal stem cells (hGMSCs) by enhancing the suppressive effects of hGMSCs on peripheral blood mononuclear cells (PBMCs). The proliferation of PBMCs was significantly inhibited, while the apoptosis of PBMCs was increased, which was associated with the Fas ligand (FasL) expression of hGMSCs. The in vivo study showed that systemically infused hGMSCs could enhance skin wound repair, and 24-h hypoxic stimulation significantly promoted the reparative capacity of hGMSCs. For mechanism, hGMSC treatment inhibited the local inflammation of injured skin by suppressing the inflammatory cells, reducing the pro-inflammatory cytokine tumor necrosis factor-α (TNF-α), and increasing anti-inflammatory cytokine interleukin-10 (IL-10), which was promoted by hypoxia. Hypoxia preconditioning may be a good optimizing method to promote the potential of MSCs for the future cell-based therapy.
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Affiliation(s)
- C M Jiang
- State Key Laboratory of Oral Diseases, Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chendu, Sichuan, China
| | - J Liu
- Laboratory of Stem Cell Biology, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - J Y Zhao
- State Key Laboratory of Oral Diseases, Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chendu, Sichuan, China
| | - L Xiao
- State Key Laboratory of Oral Diseases, Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chendu, Sichuan, China
| | - S An
- State Key Laboratory of Oral Diseases, Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chendu, Sichuan, China
| | - Y C Gou
- State Key Laboratory of Oral Diseases, Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chendu, Sichuan, China
| | - H X Quan
- Qingdao First Sanatorium of Jinan Military Distract of PLA, Qingdao Shandong, China
| | - Q Cheng
- Department of Orthodontics, Luzhou Medical College, Luzhou, Sichuan, China
| | - Y L Zhang
- State Key Laboratory of Oral Diseases, Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chendu, Sichuan, China
| | - W He
- State Key Laboratory of Oral Diseases, Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chendu, Sichuan, China
| | - Y T Wang
- State Key Laboratory of Oral Diseases, Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chendu, Sichuan, China
| | - W J Yu
- State Key Laboratory of Oral Diseases, Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chendu, Sichuan, China
| | - Y F Huang
- State Key Laboratory of Oral Diseases, Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chendu, Sichuan, China
| | - Y T Yi
- State Key Laboratory of Oral Diseases, Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chendu, Sichuan, China
| | - Y Chen
- State Key Laboratory of Oral Diseases, Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chendu, Sichuan, China
| | - J Wang
- State Key Laboratory of Oral Diseases, Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chendu, Sichuan, China
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Jiang CM, Yu WT, Ma Q, Xu YG, Zou H, Zhang SC, Sheng WP. Atmospheric organic nitrogen deposition: analysis of nationwide data and a case study in Northeast China. Environ Pollut 2013; 182:430-436. [PMID: 23995024 DOI: 10.1016/j.envpol.2013.08.003] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/16/2013] [Revised: 07/31/2013] [Accepted: 08/02/2013] [Indexed: 06/02/2023]
Abstract
The origin of atmospheric dissolved organic nitrogen (DON) deposition is not very clear at present. Across China, the DON deposition was substantially larger than that of world and Europe, and we found significant positive correlation between contribution of DON and the deposition flux with pristine site data lying in outlier, possibly reflecting the acute air quality problems in China. For a case study in Northeast China, we revealed the deposited DON was mainly derived from intensive agricultural activities rather than the natural sources by analyzing the compiled dataset across China and correlating DON flux with NH4(+)-N and NO3(-)-N. Crop pollens and combustion of fossil fuels for heating probably contributed to summer and autumn DON flux respectively. Overall, in Northeast China, DON deposition could exert important roles in agro-ecosystem nutrient management and carbon sequestration of natural ecosystems; nationally, it was suggested to found rational network for monitoring DON deposition.
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Affiliation(s)
- C M Jiang
- Laboratory of Nutrients Recycling, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, PR China.
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Jiang CM, Pang MR, Gong LY. [Clinical observation on effect of chemotherapy combined with Chinese medicine in treating advanced tumor patients and on immunologic parameters]. Zhongguo Zhong Xi Yi Jie He Za Zhi 2001; 21:885-7. [PMID: 12575585] [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 To observe the effects of chemotherapy combined with Chinese herbal medicine (Spleen-Kidney tonifying) in treating advanced tumor patients and on immune parameters. METHODS One hundred and one advanced tumor patients were randomly divided into the treated group (54 patients) treated by Chinese medicine combined with chemotherapy, and the control group (47 patients) treated by chemotherapy alone. After being treated for 8 weeks (2 treatment courses), the changes of tumor size, body weight, Karnofsky scores, immunologic parameters, peripheral blood cells, as well as the toxic and side-effects were also studied. RESULTS Improvement of various degree was obtained on the immunologic parameters such as CD3, CD4, CD4/CD8, NK cells, and the quality of life, as Karnofsky score in the treated group, in comparing with those in the control group the difference was significant (P < 0.05, P < 0.01). But on behalf of the toxic and side-effects in advanced patients, there was no significant difference between the two groups. CONCLUSION Chemotherapy combined with Chinese Spleen-Kidney tonifying drugs could improve the immunologic functions in the advanced tumor patients.
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Affiliation(s)
- C M Jiang
- Zhejiang Cancer Hospital, Hangzhou 310022
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Jiang CM, Wu MC, Chang WH, Chang HM. Determination of random- and blockwise-type de-esterified pectins by capillary zone electrophoresis. J Agric Food Chem 2001; 49:5584-5588. [PMID: 11714363 DOI: 10.1021/jf0105642] [Citation(s) in RCA: 7] [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] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Capillary zone electrophoresis (CZE) was employed to determine the correlations between migration time and degree of esterification (DE) of pectinesterase-de-esterified pectins (PDPs) and alkaline-de-esterified pectins (ADPs) using 50 mM phosphate buffer (pH 6.5) as carrier electrolyte solution and 15 KV as applied voltage. Results showed that pectins with higher DEs exhibited shorter migration times. Linear correlation (r = 0.995) between migration time and DE of ADPs was observed, whereas down-curve correlation in PDPs was observed, regardless of the capillary length used (effective length, 30 and 60 cm). In addition, PDP appeared to migrate faster than ADP with the same DE under the same experimental conditions.
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Affiliation(s)
- C M Jiang
- Department of Seafood Science, National Kaohsiung Institute of Marine Technology, Kaohsiung 811, Taiwan
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Chung CH, Chiang J, Jiang CM, Chen YY, Huang CY, Chen PG, Chen YJ. Basic fibroblast growth factor as a growth factor for SRV-2-infected simian retroperitoneal fibromatosis cells, an animal model for AIDS related Kaposi's sarcoma. Neoplasma 2001; 48:192-9. [PMID: 11583288] [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]
Abstract
Basic fibroblast growth factor (bFGF) and vascular endothelial cell growth factor (VEGF) were demonstrated to be important factors sustaining the growth of Kaposi's sarcoma. RF cells were used to provide a model to study the pathogenesis of Kaposi's sarcoma. In this paper, we demonstrated that bFGF is present in the RF cells, cultured media, and tissues from monkey. The biological activities of bFGF on RF cells were also studied in vitro with serum-free media. The bFGF from serum-free-conditioned media is biologically active to stimulate RF cells in certain media condition. The mitogenic effect was abrogated by sheep neutralizing anti-bFGF antibody. Furthermore, the effect of antibody was reversed by the addition of exogenous bFGF. ELISA measurements indicating the growth potency of conditioned media correlated with the amount of bFGF in the conditioned media. The data from flow cytometry demonstrated the co-existence of SRV-2 and bFGF among RF cells and RF tissues. Immunohistochemical staining of RF tissue blocks for bFGF revealed that bFGF was present in the tumor and the presence of bFGF was not caused by the artifact of tissue culture. These results indicate that bFGF is an important growth factor to promote RF cell growth in vitro and RF tumor in vivo. Further studies are required to determine the relationship between the interaction of bFGF, SRV-2, and VEGF. This model also provides an adequate alternative to the model induced by simian immunodeficiency virus (SIV) to study the Kaposi's sarcoma.
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Affiliation(s)
- C H Chung
- Department of Radiation Oncology, Mackay Memorial Hospital, Taipei, Taiwan.
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Jiang CM, Wu MC, Chang WH, Chang HM. Change in particle size of pectin reacted with pectinesterase isozymes from pea (Pisum sativum L.) sprout. J Agric Food Chem 2001; 49:4383-7. [PMID: 11559142 DOI: 10.1021/jf010067l] [Citation(s) in RCA: 8] [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] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Four pectinesterase (PE) isozymes were isolated by CM-Sepharose CL-6B chromatography from etiolated pea (Pisum sativum L.) sprouts and then reacted with citrus pectin (degree of esterification = 68%, 30-100 kDa) to observe the change in pectin particle size using a laser particle size analyzer. After incubation of a pectin-PE mixture (pH 6.5) at 30 degrees C for 4 h, PE 1 was observed to catalyze the transacylation reaction most remarkably, increasing the particle size from approximately 50-70 to approximately 250-350 nm, followed by PE 3, PE 2, and PE 4.
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Affiliation(s)
- C M Jiang
- Department of Food and Beverage Management, National Kaohsiung Hospitality College, Kaohsiung 800, Taiwan
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Abstract
A standard curve for the quantification of L-ascorbic acid (L-AA) by capillary zone electrophoresis (CZE) was established, and the quantification of ascorbic acid and total ascorbic acid in fruits (lemon, Sunkist, and pineapple) and spinach were performed using D-isoascorbic acid (D-IAA) as an internal standard. The minimum detection limits (MDLs) for L-AA and D-IAA were determined to be 1 and 2 microg/mL, respectively, at 265 nm. Dehydroascorbic acid (DHAA) in fruits and spinach was quantified in the presence of DL-homocysteine. The recoveries for L-AA in these juices were between 95 and 105%.
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Affiliation(s)
- T Liao
- Graduate Institute of Food Science and Technology, National Taiwan University, Taipei
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13
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Abstract
Age-dependent changes in nociceptive responses were investigated using either the electromyogram (EMG) recorded from the hamstring muscle in response to electrical stimulation of the hind foot in spinal transected rats or measurement of the tail-flick (TF) reflex latency in intact rats. The development of hyperalgesia produced by topical application of mustard oil was subsequently studied. In experiments involving EMG recordings, rats were tested from day 2 to day 34 after birth (4-day interval) and as adults. In experiments involving measurement of the TF reflex, rats were tested from day 5 to day 30 after birth (5-day interval) and as adults. It was found that the latency and the duration of an early component of the EMG decreased with an increase in animal age, and was similar to adult animals at approximately 18 days after birth. The thermal tail withdraw threshold was lower in pups in comparison with older rats, and took more than 30 postnatal days to become similar to that of adult rats. Although nociceptive behaviors such as biting, body movement, and vocalization could be produced in intact rats by mustard oil in rats as young as 5 days old, the intensities of these responses were subjectively less than those of adult rats. Mustard oil application enhanced significantly the EMG response to electrical stimulation and the effect increased with increasing age. Similarly, mustard oil applied to a hind leg facilitated the TF reflex (decreased response latency). In both experiments, it took approximately 34-40 postnatal days for mustard oil-produced hyperalgesia to become similar to that of adult rats. These data confirm that nociceptive processing is not mature in the young animal and that a developmental period after birth is required for hyperalgesia-related mechanisms to mature.
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Affiliation(s)
- C M Jiang
- Department of Pharmacology, College of Medicine, University of Iowa, Iowa City, IA 52242, USA
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14
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Qi QQ, Jiang CM, Zhou ZT. [The microcirculation changes of 52 patients with RAU after Yiqi(promotion of blood supply) Huayu (de-coagulation) treatment.]. Shanghai Kou Qiang Yi Xue 1995; 4:74-6. [PMID: 16538330] [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: 05/07/2023]
Affiliation(s)
- Q Q Qi
- Department of Traditional Chinese Medicine, Ninth People's Hospital, Shanghai Second Medical University. Shanghai 200011,China
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15
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Zhou ZT, Xu WN, Yin DM, Jiang CM. [Immunologic and microcirculational study of oral lichen planus with Xu Zheng and Shi Zheng]. Shanghai Kou Qiang Yi Xue 1992; 1:29-32. [PMID: 15159920] [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: 04/29/2023]
Affiliation(s)
- Z T Zhou
- Department of Oral Medicine, School of Stomatology, Shanghai Second Medical University. Shanghai 200011, China
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16
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Jiang CM. [The observation of immunologic aspects of chronic hepatitis and its relationship with the classification and differential diagnosis in traditional Chinese medicine--analysis of 96 cases]. Zhong Xi Yi Jie He Za Zhi 1982; 2:147-8. [PMID: 6219815] [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: 01/19/2023]
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