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Zhang JY, Chen B, Hu XY, Li NC, Chen Y, Yang KJ, Liu YY, Chen ZL, Guo Y. Progress of research on organ protection of acupuncture and moxibustion in the prevention and treatment of sepsis. Zhen Ci Yan Jiu 2023; 48:1159-1167. [PMID: 37984914 DOI: 10.13702/j.1000-0607.20221026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 11/22/2023]
Abstract
Sepsis is a major disease that threatens human life and health. Clinically, it is mainly based on supportive treatment and lacks specific treatment methods. Acupuncture has important clinical significance in the prevention and treatment of sepsis. In the present paper, we systematically searched CNKI and PubMed databases, included the clinical trials and animal experiments on the prevention and treatment of sepsis with acupuncture, summarized the clinical efficacy and the mechanism of acupuncture. Results indicate that the role of acupuncture therapies in improving sepsis involves inhibiting systemic inflammatory response, alleviating oxidative stress, regulating immune system, and resisting cell apoptosis, thus having a protective effect on multiple organs. The mechanism involves multiple signaling pathways and related factors.
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Affiliation(s)
- Jing-Yu Zhang
- Research Center of Experimental Acupuncture and Moxibustion Science, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China.
| | - Bo Chen
- Research Center of Experimental Acupuncture and Moxibustion Science, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China.
- School of Acupuncture Moxibustion and Tuina, Tianjin University of Traditional Chinese Medicine, Tianjin 301617.
- National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, Tianjin 300381.
| | - Xi-You Hu
- Research Center of Experimental Acupuncture and Moxibustion Science, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China
| | - Ning-Cen Li
- Research Center of Experimental Acupuncture and Moxibustion Science, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China
| | - Yong Chen
- Research Center of Experimental Acupuncture and Moxibustion Science, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China
| | - Ke-Jian Yang
- Research Center of Experimental Acupuncture and Moxibustion Science, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China
| | - Yang-Yang Liu
- Research Center of Experimental Acupuncture and Moxibustion Science, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China
| | - Ze-Lin Chen
- Research Center of Experimental Acupuncture and Moxibustion Science, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China
- School of Acupuncture Moxibustion and Tuina, Tianjin University of Traditional Chinese Medicine, Tianjin 301617
- National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, Tianjin 300381
| | - Yi Guo
- Research Center of Experimental Acupuncture and Moxibustion Science, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China
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Yu H, Liu C, Chen B, Zhai J, Ba D, Zhu Z, Li N, Loh P, Chen A, Wang B, Guo Y, Liu Y, Chen Z. The clinical efficacy and safety of acupuncture intervention on cancer-related insomnia: A systematic review and meta-analysis. Front Neurosci 2022; 16:1026759. [PMID: 36590284 PMCID: PMC9799057 DOI: 10.3389/fnins.2022.1026759] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2022] [Accepted: 11/09/2022] [Indexed: 12/23/2022] Open
Abstract
Objective To evaluate the efficacy and safety of acupuncture in treating symptoms for Cancer-related Insomnia(CRI) patients. Methods Seven databases were searched from the time of database establishment to 31 March 2022. Randomized Controlled Trials (RCTs) on acupuncture intervention for CRI were collected. Literature screening and data extraction were performed independently by two researchers. Meta-analysis was performed using RevMan 5.4 software. Results A total of 13 articles with 1,109 participants were included. Five hundred and seventeen in the treatment group and 592 in the control group. Ten of the RCTs used the PSQI rating scale and four randomized controlled trials used the ISI rating scale, and the PSQI and ISI were analyzed together as continuous data. The results of the meta-analysis were: MD = -1.83, 95%CI = [-2.71, -0.94], P < 0.0001, indicating a significant improvement in PSQI scores in patients with CRI by acupuncture intervention; MD = 0.79, 95%CI = [-0.46, 2.03], P = 0.22. Acupuncture was not statistically significant on ISI scores for patients with CRI compared to controls, which does not yet indicate that acupuncture is effective for symptoms in patients with CRI. The results of the meta-analysis of the other 4 items using sleep disorder logs as efficacy analysis data were as follow, relative risk RR = 0.47, 95%CI = [0.33, 0.66], P < 0.0001. The difference was statistically significant, indicating that acupuncture can improve the symptoms of CRI patients compared to control group. Conclusion Acupuncture can improve the symptoms of patients with CRI to some extent, but due to the relatively small number and low quality of the included literature in this study, more high-quality clinical trials are needed as supplement the evidences in future. Systematic review registration https://www.crd.york.ac.uk/prospero/.
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Affiliation(s)
- HaiXin Yu
- Department of Acu-moxibustion and Tuina, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - CaiYun Liu
- Department of Acu-moxibustion and Tuina, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Bo Chen
- Department of Acu-moxibustion and Tuina, Tianjin University of Traditional Chinese Medicine, Tianjin, China,Acupuncture Research Center, Tianjin University of Traditional Chinese Medicine, Tianjin, China,*Correspondence: Bo Chen
| | - JingBo Zhai
- Evidence-Based Medicine Center, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - DongSheng Ba
- Department of Acu-moxibustion and Tuina, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Zheng Zhu
- Department of Acu-moxibustion and Tuina, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - NingCen Li
- Department of Acu-moxibustion and Tuina, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - PeiYong Loh
- Department of Acu-moxibustion and Tuina, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - AoXiang Chen
- National Clinical Research Center for Cancer, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China
| | - Bin Wang
- National Clinical Research Center for Cancer, Tianjin Medical University Cancer Institute and Hospital, Tianjin, China
| | - Yi Guo
- Department of Acu-moxibustion and Tuina, Tianjin University of Traditional Chinese Medicine, Tianjin, China,Acupuncture Research Center, Tianjin University of Traditional Chinese Medicine, Tianjin, China,Yi Guo
| | - YangYang Liu
- Department of Acu-moxibustion and Tuina, Tianjin University of Traditional Chinese Medicine, Tianjin, China,Acupuncture Research Center, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - ZeLin Chen
- Department of Acu-moxibustion and Tuina, Tianjin University of Traditional Chinese Medicine, Tianjin, China,Acupuncture Research Center, Tianjin University of Traditional Chinese Medicine, Tianjin, China
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Dou BM, Xu ZF, Lv ZX, Li NC, Li YW, Yao KF, Liu YY, Wang SJ, Lin XW, Guo Y. [Acupoit is the "transducer" in the physiochemical information coupling response of acupuncture]. Zhongguo Zhen Jiu 2022; 42:1321-1326. [PMID: 36397234 DOI: 10.13703/j.0255-2930.20220216-k0005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Acupoint is the initial response site of acupuncture stimulus and also the source link of the effect onset of acupuncture. Acupuncture is a mechanical physical stimulus. How is the mechanical force of acupuncture transduced into neuroelectrical and biochemical signals at acupoint? How does the physiochemical information of acupoint launch acupuncture effect? All of these remain the common and crucial questions in the study of acupuncture effect mechanism. Physical changes are induced in the local tissue of acupoint by needling techniques, such as the deformation and displacement of muscle fibers, which may act on the nerve ending receptors and produce electroneurographic signals. Besides, these changes may activate the mechanosensitive ion channels of the cytomembrane in acupoint site. Through cellular signal transduction, the physical signals may be transformed into chemical ones to trigger the physiochemical coupling response of acupoint microenvironment. Eventually, acupuncture effect is generated via nerves and body fluids. "The mechanical force of acupuncture", through "the physiochemical transduction", promotes the body's perception and transmits acupuncture signals. It suggests that acupoint is the "transducer" in the physiochemical information coupling response of acupuncture.
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Affiliation(s)
- Bao-Min Dou
- Research Center of Experimental Acupuncture Science, Tianjin University of TCM, Tianjin 301617, China
| | - Zhi-Fang Xu
- Research Center of Experimental Acupuncture Science, Tianjin University of TCM, Tianjin 301617, China; National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, Tianjin 301617
| | - Zhong-Xi Lv
- Research Center of Experimental Acupuncture Science, Tianjin University of TCM, Tianjin 301617, China; National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, Tianjin 301617
| | - Ning-Cen Li
- Research Center of Experimental Acupuncture Science, Tianjin University of TCM, Tianjin 301617, China
| | - Yan-Wei Li
- Research Center of Experimental Acupuncture Science, Tianjin University of TCM, Tianjin 301617, China
| | - Kai-Fang Yao
- Research Center of Experimental Acupuncture Science, Tianjin University of TCM, Tianjin 301617, China
| | - Yang-Yang Liu
- Research Center of Experimental Acupuncture Science, Tianjin University of TCM, Tianjin 301617, China; National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, Tianjin 301617
| | - Shen-Jun Wang
- Research Center of Experimental Acupuncture Science, Tianjin University of TCM, Tianjin 301617, China; National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, Tianjin 301617
| | - Xiao-Wei Lin
- Research Center of Experimental Acupuncture Science, Tianjin University of TCM, Tianjin 301617, China; School of Chinese Medicine, Tianjin University of TCM, Tianjin 301617
| | - Yi Guo
- Research Center of Experimental Acupuncture Science, Tianjin University of TCM, Tianjin 301617, China; School of Chinese Medicine, Tianjin University of TCM, Tianjin 301617; National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, Tianjin 301617
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Zhai RC, Li NC, Liu XD, Zhu SK, Hu BF, Zhang AN, Tong X, Wang GD, Wan YJ, Ma Y. [Discussion of grading method of small opacity profusion of pneumoconiosis on CT scans and the corresponding reference images]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2021; 39:453-457. [PMID: 34218566 DOI: 10.3760/cma.j.cn121094-20200917-00537] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To explore the CT grading method of small opacity profusion of pneumoconiosis, and draw up the corresponding CT reference film. Methods: In December 2019, Three hundred thirty-seven cases of pneumoconosis and suspected pneumoconiosis were examined by chest radiography and Computed Tomography (CT) in the same period. According to Diagnosis of Occupational Pneumoconiosis (GBZ 70-2015) , small opacity profusion of pneumoconiosis in each zone of lung was divided. On CT scans, it was divided into 5 grades of 0, 0+, 1, 2 and 3. Grade 0 corresponded to Sub-grade 0/- and Sub-grade 0/0 of Grade 0 in chest radiograph. Grade 0+ was equivalent to Sub-grade 0/1 of Grade 0. Grade 1, 2, 3 were equivalent to Grade 1, 2 and 3, respectively (including each sub-grade) . The CT image quality of each zone of lung was divided into 1 to 4 levels. Results of level 4 were not included in statistical analyses.Based on the results of small opacity profusion in each zone of lung, consistency analysis was performed between chest radiograph and CT. The selection method of reference films was developed. Based on the types and grades of small opacity, the final reference films were determined. Results: There were 1877 zones of lung with CT image quality from level 1 to 3, including 335 in upper right, 319 in middle right, 284 in lower right, 334 in upper left, 320 in middle left and 286 in lower left. The Kappa values of small opacity profusion in upper right zone, upper left zone, left middle zone, and lower left zone were all between 0.4-0.75. In middle right zone and lower right zone, they were all above 0.75.Among all 6 zones of lung, the diagnostic concordance rates between CT and chest radiograph were all above 80%.The corresponding CT reference films were proposed, including type p and q in Grade 2 and 3, type r in Grade 2, type s and t in Grade 0+ to 3. Conclusion: The CT grading method for small opacity profusion of pneumoconiosis is feasible, and the application value of its reference films needs to be further verified.
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Affiliation(s)
- R C Zhai
- Medical Imaging Center, Tongling Municipal Hospital, Tongling 244000, China
| | - N C Li
- Medical Imaging Center, Tongling Municipal Hospital, Tongling 244000, China
| | - X D Liu
- Medical Imaging Center, Tongling Municipal Hospital, Tongling 244000, China
| | - S K Zhu
- Medical Imaging Center, Tongling Municipal Hospital, Tongling 244000, China
| | - B F Hu
- Medical Imaging Center, Tongling Municipal Hospital, Tongling 244000, China
| | - A N Zhang
- Medical Imaging Center, Tongling Municipal Hospital, Tongling 244000, China
| | - X Tong
- Tongling Municipal Hospital Shicheng Hospital, Tongling 244000, China
| | - G D Wang
- Tongling Municipal Hospital Shicheng Hospital, Tongling 244000, China
| | - Y J Wan
- Tongling Municipal Hospital Shicheng Hospital, Tongling 244000, China
| | - Y Ma
- Medical Imaging Center, Tongling Municipal Hospital, Tongling 244000, China
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Li NC, Guo Y, Chen B, Yang KJ, Wang MJ, Zhang JY, Gong YN, Chen ZL, Xu ZF, Fang YX. ["Acupuncture network drug"--transformation and application strategies of exosomes based on characteristics of network regulation of acupuncture therapy]. Zhen Ci Yan Jiu 2021; 46:464-8. [PMID: 34190448 DOI: 10.13702/j.1000-0607.201216] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Although the basic mechanism of acupuncture-moxibustion has been revealed from many aspects, there are still many shackles in the transformation of the related research achievements. The transformation of academic achievements of experimental acupunctology is an urgent issue to be solved at present. Network regulation is the basic action mode of acupuncture therapy. In the present paper, we proposed that the "acupuncture network drug" could carry a variety of effective active ingredients which may be the core component of network regulation of acupuncture therapy. The "exosomes", polyvesicle derived from the intracellular lysosomal microparticles invagination, contain complex RNAs and proteins and exist in the body fluids and function in secreting abundant activate substances to participate in intercellular communication, which is the research hotspot in the field of frontier life science in the world. They play an important role in the diagnosis and treatment of diseases, and drug development, etc.. Our studies using rats with adjuvant arthritis and mice with sepsis displayed that after intraperitoneal administration of serum exosomes derived from normal animals receiving acupuncture intervention, an acupuncture-like analgesic effect and an anti-inflammatory effect were achieved, respectively. It is thus possible that acupuncture network drugs could be developed from serum exosomes secreted by exosome autogenous living cells after acupuncture intervention by virtue of the characteristics of low immunogenicity and may have great advantages in drug development and modification. It is also expected to provide new ideas for the transformation of experimental research results and to in depth give explanations about the underlying mechanisms of acupuncture therapy.
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Affiliation(s)
- Ning-Cen Li
- Tianjin Research Center for Experimental Acupunctology, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China; College of Acupuncture-moxibustion and Tuina, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China
| | - Yi Guo
- Tianjin Research Center for Experimental Acupunctology, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China; College of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China; National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, the first Affiliated Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin 300381
| | - Bo Chen
- Tianjin Research Center for Experimental AcupunctologyTianjin University of Traditional Chinese Medicine, Tianjin 301617, China; College of Acupuncture-moxibustion and Tuina, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China; National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, the first Affiliated Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin 300381
| | - Ke-Jian Yang
- Tianjin Research Center for Experimental Acupunctology, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China; College of Acupuncture-moxibustion and Tuina, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China
| | - Mei-Juan Wang
- Tianjin Research Center for Experimental Acupunctology, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China; College of Acupuncture-moxibustion and Tuina, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China
| | - Jing-Yu Zhang
- Tianjin Research Center for Experimental Acupunctology, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China; College of Acupuncture-moxibustion and Tuina, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China
| | - Yi-Nan Gong
- Tianjin Research Center for Experimental Acupunctology, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China; College of Acupuncture-moxibustion and Tuina, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China
| | - Ze-Lin Chen
- Tianjin Research Center for Experimental Acupunctology, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China; College of Acupuncture-moxibustion and Tuina, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China; National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, the first Affiliated Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin 300381
| | - Zhi-Fang Xu
- Tianjin Research Center for Experimental Acupunctology, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China; College of Acupuncture-moxibustion and Tuina, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China; National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, the first Affiliated Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin 300381
| | - Yu-Xin Fang
- Tianjin Research Center for Experimental Acupunctology, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China; College of Acupuncture-moxibustion and Tuina, Tianjin University of Traditional Chinese Medicine, Tianjin 301617, China; National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, the first Affiliated Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin 300381
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Chen B, Guo Y, Li NC, Li MY, Lu ZX, Li MY, Zhuo XM, Chen Y, Wang TT, Xing LY, Wang MJ, Shan K, Chen ZL, Lim CM. Exosome is an important novel way of acupuncture information transmission. World J Tradit Chin Med 2020. [DOI: 10.4103/wjtcm.wjtcm_57_20] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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Zhu H, Li NC, Zhao ZC, Wang HG, Zhang B, Na YQ. [Collecting system percutaneous access using MR-assisted guidance: first human phantom experience]. Zhonghua Yi Xue Za Zhi 2018; 98:1962-1964. [PMID: 29996291 DOI: 10.3760/cma.j.issn.0376-2491.2018.24.014] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: Precise renal puncture is an essential but challenging step for successful percutaneous nephrolithotomy. We evaluated the efficiency of a novel real-time navigation system using Mixed Reality(MR) technology for human phantom kidney puncture. Methods: One human kidney phantom underwent MR-assisted percutaneous collecting system puncture. Two punctures were performed by each of 6 surgeons in the randomize selected upper, middle or lower calyces. Outcome measurements were the number of attempts for renal puncture, the time needed to evaluate the trajectory and to perform percutaneous puncture. Results: A total of 12 punctures were performed successfully using MR-Assisted Guidance. Median evaluation time and renal puncture time for the selected calyces was 13 (range 11 to 19) and 19 seconds (range 15 to 44), respectively. One or Two attempts were needed to achieve a successful renal puncture for all of the surgeons. Conclusions: The proposed MR-assisted guidance solution for renal collecting system puncture proved to be accurate, simple and quick. The inherent limitations of traditional X - ray and ultrasonic technology can be overcome.
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Affiliation(s)
- H Zhu
- Wu Jieping Urology Center, Shougang Hospital, Peking University, Beijing 100144, China
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Yamanaka M, Kanda K, Li NC, Fukumori T, Oka N, Kanayama HO, Kagawa S. Analysis of the gene expression of SPARC and its prognostic value for bladder cancer. J Urol 2001; 166:2495-9. [PMID: 11696817] [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: 02/22/2023]
Abstract
PURPOSE We analyzed the gene expression of the glycoprotein termed secreted protein, acidic and rich in cysteine (SPARC), also called osteonectin and BM40, in bladder cancer and its relationship with conventional clinical-histopathological manifestations, evaluated its prognostic value for patient outcome and determined the possible mechanism underlying the effect of SPARC on bladder cancer progression. MATERIALS AND METHODS Tissue samples from 63 patients with bladder cancer were used for analysis. Gene expression levels of SPARC and matrix metalloproteinase-2 were analyzed using reverse transcription-polymerase chain reaction. Correlations of the expression of SPARC with histopathological findings or patient outcome and with matrix metalloproteinase-2 were evaluated. RESULTS Significantly higher expression of SPARC was observed in grades 3 and 2 than in grade 1 tumors (p <0.001 and <0.05, respectively). Stage T2 or greater invasive tumors expressed a significantly higher level of SPARC than stages T1 or less superficial tumors (p <0.0001). Patients in whom the lesions showed high SPARC expression had a significantly worse prognosis than those with low SPARC expression disease (p <0.0001). Even in those with invasive bladder cancer high SPARC expression was associated with significantly worse survival than low expression (p <0.01). Moreover, gene expression of SPARC significantly correlated with matrix metalloproteinase-2 gene expression (p <0.0001), implying that regulation of matrix metalloproteinase-2 expression may be a possible mechanism underlying the effect of SPARC on bladder cancer progression. CONCLUSIONS A significant correlation was detected of the gene expression level of SPARC with histological grade, pathological stage and bladder cancer prognosis. SPARC may have an important role in bladder cancer progression and provide some additional information in patients with bladder cancer.
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Affiliation(s)
- M Yamanaka
- Department of Urology, University of Tokushima School of Medicine, Tokushima, Japan
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Frank UK, Nishimura SL, Li NC, Sugai K, Yajko DM, Hadley WK, Ng VL. Evaluation of an enzyme immunoassay for detection of cryptococcal capsular polysaccharide antigen in serum and cerebrospinal fluid. J Clin Microbiol 1993; 31:97-101. [PMID: 8417038 PMCID: PMC262628 DOI: 10.1128/jcm.31.1.97-101.1993] [Citation(s) in RCA: 29] [Impact Index Per Article: 0.9] [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: 01/30/2023] Open
Abstract
The Premier enzyme immunoassay (Meridian Diagnostics, Inc., Cincinnati, Ohio) was compared with a latex agglutination assay (CALAS; Meridian) for the ability to detect cryptococcal capsular polysaccharide antigen (CrAg) in serum and cerebrospinal fluid (CSF). A total of 594 specimens (471 serum samples and 123 CSF samples) obtained from 430 patients, most of whom were at risk for or had AIDS, were tested in parallel by both systems. Both tests were independently evaluated for their ability to (i) detect CrAg when used as a screening test and (ii) quantitate the CrAg present when used as a titration assay. Chart review to assess clinical outcome after the time of specimen collection was conducted for all patients. When both assays were used as screening assays, 103 serum samples and 18 CSF samples were positive and 356 serum samples and 104 CSF specimens were negative by both assays (97.8% concordance). Thirteen specimens (12 serum samples, 1 CSF sample) gave discrepant screening results. When the tests were used as semiquantitative assays for titer determinations, the CrAg titers determined by the enzyme immunoassay were generally higher than those obtained with the latex agglutination assay. In summary, results obtained with the enzyme immunoassay correlated well with those obtained with the latex agglutination test for screening for the presence of CrAg and for determining the titer of CrAg in serum or CSF.
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Affiliation(s)
- U K Frank
- Department of Medicine, University of California, San Francisco 94143
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Abstract
Dicopper complexes of the following benzimidazole-containing ligands have been studied as possible models for the active site of hemocyanin: EDTB (N,N,N',N'-tetrakis-(2-benzimidazolylmethyl)-1,2-ethanediamine), EGTB (1,1,10,10-tetrakis-(2-benzimidazolylmethyl)-1,10-diaza-4,7- dioxadecane), and MEGTB (1,1,10,10-tetrakis-(1-methylbenzimidazol-2-y lmethyl)-1,10-diaza-4,7-dioxadecane). The initial oxygenation product of Cu2(EDTB)(ClO4)2 in Me2SO gives optical absorption maxima at 315 nm (epsilon = 3750 M-1 cm-1) and 690 nm (epsilon = 100 M-1 cm-1). The fluorescence emission intensities of Cu2(EDTB)(ClO4)2 at 400 and 700 nm (excitation at 350 nm) decreases rapidly on exposure to air. This suggests oxidation of Cu2(I) to Cu2(II). The x-ray absorption edge spectra suggest that both coppers in the oxygenation product, analyzed as Cu2(EDTB)(ClO4)2(O).3H2O, are Cu(II). From spectrophotometric titration of Cu2(MEGTB)Cl4 with azide, formation constant of the Cu2(MEGTB)N3Cl3 complex has been obtained. Data from cyclic voltammetry experiments suggest that in the presence of azide, Cu(II)(N3)Cu(II) species is present.
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Affiliation(s)
- J R Tzou
- Department of Chemistry, Duquesne University, Pittsburgh, Pennsylvania
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Borke ML, Lee BK, Li NC. Interactions of manganese(II) and small ligands with Busycon canaliculatum hemocyanin. Proc Natl Sci Counc Repub China B 1984; 8:319-23. [PMID: 6571593] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Cyanide (5 X 10(-3) M) and thioacetamide (5 X 10(-3) M) increase the P50 values (P02 required for 50% oxygenation) of hemocyanin by 100%, respectively. Using an ion-exchange method involving 14CN-, we have found that cyanide forms a 1:1 complex with hemocyanin in the concentration range examined: Kf = 2.3 X Mw M-1 at room temperature, where Kf is association constant and Mw is molecular weight of hemocyanin. This strong binding of cyanide to hemocyanin is to be expected from the effect of this ion on the oxygenation of hemocyanin. The effects of manganese(II) ion and fluoride on the oxygenation of hemocyanin are found to be weak. The nmr measurements, however, suggest that manganese(II) ion does have some interactions with the active site of hemocyanin.
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Chen JT, Shen ST, Chung CS, Chang H, Wang SM, Li NC. Achatina fulica hemocyanin and its interactions with imidazole, potassium cyanide, and fluoride as studied by spectrophotometry and nuclear magnetic resonance and resonance raman spectrometry. Biochemistry 1979; 18:3097-101. [PMID: 465458 DOI: 10.1021/bi00581a029] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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Guo JM, Chang C, Li NC, Douglas KT. Interactions of small ligands with Busycon canaliculatum and Limulus polyphemus hemocyanins as studied by ultraviolet spectrophotometry and 1H and 19F nuclear magnetic resonance. Biochemistry 1978; 17:452-7. [PMID: 23149 DOI: 10.1021/bi00596a012] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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Loeffler MC, Su SS, Li NC, Casassa EF. A light-scattering study of the effect of calcium chloride on the molecular weight of Busycon hemocyanin. Bioinorg Chem 1978; 8:133-8. [PMID: 25095 DOI: 10.1016/s0006-3061(00)80239-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Solutions of Busycon canaliculatum have been studied by light scattering. In 0.05 M Trizma buffer +0.1 M NaCl at pH 7.0 at 14 degrees, the weight-average molecular weight is 8.9 X 10(6). In the presence of added CaCl2 (0.02 M), the molecular weight of the protein increases to 10.7 X 10(6), and the second virial coefficient is reduced. At pH 9.95, the molecular weights with and without 0.02 M CaCl2, are 3.7 X 10(6) and 1.3 X 10(6), respectively; and the effect of Ca++ in reducing the second virial coefficient is much greater than at pH 7.0. These results can be understood on the basis that at pH 7.0, ca++ increases the association of hemocyanin, by binding and intermolecular linkage through the carboxyl groups of protein side chains. At pH 9.95, amino groups are deprotonated and therefore also become available for Ca++ binding. The relative effect of Ca++ in enhancing the association of hemocyanin therefore becomes greater at the higher pH.
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Abstract
Oxidation studies of hemoglobin by Cu(II) indicate that for horse hemoglobin, up to a Cu(II)/heme molar ratio of 0.5, all of the Cu(II) added is used to rapidly oxidize the heme. On the other hand, most of the Cu(II) added to human hemoglobin at low Cu(II)/heme molar ratios is unable to oxidize the heme. Only at Cu(II)/heme molar ratios greater than 0.5 does the amount of oxidation per added Cu(II) approach that of horse hemoglobin. At the same time, binding studies indicate that human hemoglobin has an additional binding site involving one copper for every two hemes, which has a higher copper affinity than the single horse hemoglobin binding site. The Cu(II) oxidation of human hemoglobin is explained utilizing this additional binding site by a mechanism where a transfer of electrons cannot occur between the heme and the Cu(II) bound to the high affinity human binding site. The electron transfer must involve the Cu(II) bound to the lower affinity human hemoglobin binding site, which is similar to the only horse hemoglobin site. The involvement of beta-2 histidine in the binding of this additional copper is indicated by a comparison of the amino acid sequences of various hemoglobins which possess the additional site, with the amino acid sequences of hemoglobins which do not possess the additional site. Zn(II), Hg(II), and N-ethylmaleimide (NEM) are found to decrease the Cu(II) oxidation of hemoglobin. The sulfhydryl reagents, Hg(II) and NEM, produce a very dramatic decrease in the rate of oxidation, which can only be explained by an effect on the rate for the actual transfer of electrons between the Cu(II) and the Fe(II). The effect of Zn(II) is much smaller and can, for the most part, be explained by the increased oxygen affinity, which affects the ligand dissociation process that must precede the electron transfer process.
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Abstract
The interactions of H+,
Zn2+, and Cu2+ with adenine and guanine have been
investigated by N.M.R. studies in dimethyl sulphoxide (Me2SO). The
compounds Zn(adenine)HCl3, Zn(guanine)HCl3, (adenine)HCl,
(adenine)2HCl, (guanine)HCl,H2O and (guanine-H)2[ZnCl4]4H2O
have also been prepared and studied in Me2SO. The last compound as
well as (adenine)2HCl have not been reported previously. N.m.r. spectra are
concentration-dependent and also depend upon the hydrogen ion activity. This
work has shown that there is little correlation between solid state structures
and interactions in solution and, further, that selective line broadening by
the para- magnetic Cu2+ ion is not unequivocally diagnostic of the
binding site in these systems.
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Wang SM, Li NC. Proton magnetic resonance studies of self-association and metal complexation of nucleosides in dimethyl sulfoxide. J Am Chem Soc 1968; 90:5069-74. [PMID: 5670795 DOI: 10.1021/ja01021a003] [Citation(s) in RCA: 54] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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Bundschuh JE, Li NC. Nuclear magnetic resonance studies of proton-exchange kinetics of N-methylacetamide and N-acetylglycine N-methylamide. J Phys Chem 1968; 72:1001-5. [PMID: 5636885 DOI: 10.1021/j100849a035] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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