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Robinson AW, Nicholls D, Wells J, Moshtaghpour A, Chi M, Kirkland AI, Browning ND. Fast STEM Simulation Technique to Improve Quality of Inpainted Experimental Images Through Dictionary Transfer. Microsc Microanal 2023; 29:681-682. [PMID: 37613365 DOI: 10.1093/micmic/ozad067.336] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/25/2023]
Affiliation(s)
- A W Robinson
- Mechanical, Materials, & Aerospace Engineering, University of Liverpool, Liverpool, U.K
| | - D Nicholls
- Mechanical, Materials, & Aerospace Engineering, University of Liverpool, Liverpool, U.K
| | - J Wells
- Distributed Algorithms CDT, University of Liverpool, Liverpool, U.K
| | - A Moshtaghpour
- Mechanical, Materials, & Aerospace Engineering, University of Liverpool, Liverpool, U.K
- Rosalind Franklin Institute, Harwell Science & Innovation Campus, Didcot, U. K
| | - M Chi
- Centre for Nanophase Materials Sciences, Oak Ridge National Laboratory, TN, USA
| | - A I Kirkland
- Rosalind Franklin Institute, Harwell Science & Innovation Campus, Didcot, U. K
- Department of Materials, University of Oxford, Oxford, U. K
| | - N D Browning
- Mechanical, Materials, & Aerospace Engineering, University of Liverpool, Liverpool, U.K
- Physical & Computational Science, Pacific Northwest National Lab, Richland, WA, USA
- Sivananthan Laboratories, 590 Territorial Drive, Bolingbrook, IL, USA
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Oxley MP, Lou W, Yoon M, Chi M. Using Realistic Valence Electron Wave Functions in 4D-STEM Simulations. Microsc Microanal 2023; 29:743-744. [PMID: 37613452 DOI: 10.1093/micmic/ozad067.366] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/25/2023]
Affiliation(s)
- Mark P Oxley
- Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, TN, United States
| | - Wei Lou
- Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, TN, United States
| | - M Yoon
- Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, TN, United States
| | - M Chi
- Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, TN, United States
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Xu X, Huang L, Wu R, Zhang W, Ding G, Liu L, Chi M, Xie J. Multi-Feature Fusion Method for Identifying Carotid Artery Vulnerable Plaque. Ing Rech Biomed 2021. [DOI: 10.1016/j.irbm.2021.07.004] [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: 12/18/2022]
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4
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Zhao Y, Chi M, Zhang X, Wang S, Liu J, Liang W, Huang J. Expression, Purification, Crystallization and X-Ray Crystallographic Analysis of MoDabb1 from Magnaporthe oryzae. CRYSTALLOGR REP+ 2020. [DOI: 10.1134/s1063774519070307] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Yang X, Wang X, Chi M, Zhang M, Shan H, Zhang QH, Zhang J, Shi J, Zhang JZ, Wu RM, Li YL. Osteoprotegerin mediate RANK/RANKL signaling inhibition eases asthma inflammatory reaction by affecting the survival and function of dendritic cells. Allergol Immunopathol (Madr) 2019; 47:179-184. [PMID: 30292447 DOI: 10.1016/j.aller.2018.06.006] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2018] [Revised: 05/22/2018] [Accepted: 06/13/2018] [Indexed: 12/21/2022]
Abstract
INTRODUCTION Asthma is a chronic inflammatory, heterogeneous airway disease affecting millions of people around the world. Dendritic cells (DCs) are considered the most important antigen-presenting cell in asthma airway inflammatory reaction. But whether osteoprotegerin (OPG) mediate RANK/RANKL signaling inhibition influences asthma development by affecting the survival and function of DCs remains unclear. In this study, we assessed the effects of OPG on DCs and asthma. MATERIAL AND METHODS BALB/c mice immunized with ovalbumin (OVA) were challenged thrice with an aerosol of OVA every second day for eight days. Dexamethasone (1.0mg/kg) or OPG (50μg/kg) was administered intraperitoneally to OVA-immunized BALB/c mice on day 24 once a day for nine days. Mice were analyzed for effects of OPG on asthma, inflammatory cell infiltration and cytokine levels in lung tissue. The expression of RANK and β-actin was detected by Western Blot. DCs were isolated from mouse bone morrow. Cell survival was assessed by cell counting. The content of IL-12 was detected by ELISA. RESULTS Results showed that OVA increased the number of inflammatory factors in BALF, elevated lung inflammation scores in mice. OPG reversed the alterations induced by OVA in the asthmatic mice. OPG inhibited the survival and function of DC via inhibition of RANK/RANKL signaling. CONCLUSIONS This research proved inhibition of RANK/RANKL signaling by OPG could ease the inflammatory reaction in asthma, providing new evidence for the application of OPG on asthma.
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Affiliation(s)
- X Yang
- Department of Respiratory Medicine, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - X Wang
- Department of Respiratory Medicine, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - M Chi
- Department of Pediatrics, BaYi Children's Hospital of the PLA Army General Hospital, Beijing, China; The Clinical Medical College of the PLA Army, Second Military Medical University of People's Liberation Army, Shanghai, China
| | - M Zhang
- Department of Respiratory Medicine, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - H Shan
- Department of Respiratory Medicine, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Q-H Zhang
- Department of Respiratory Medicine, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - J Zhang
- Department of Respiratory Medicine, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - J Shi
- Department of Respiratory Medicine, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - J-Z Zhang
- Department of Respiratory Medicine, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - R-M Wu
- Department of Respiratory Medicine, Shaanxi Provincial People's Hospital, Xi'an, China
| | - Y-L Li
- Department of Respiratory Medicine, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China.
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Skelding K, Gilchrist J, Pearsall E, Chi M, Bowden N, Lincz L. PO-144 Role of increased expression of brain and acute leukaemia, cytoplasmic (BAALC) in acute myeloid leukaemia (AML) DNA damage repair pathways. ESMO Open 2018. [DOI: 10.1136/esmoopen-2018-eacr25.185] [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: 11/04/2022] Open
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Chi M, Wan YM, Gao JB. [Recurrent episodes of syncope caused by left main trunk originated from the right coronary sinus: a case report]. Zhonghua Xin Xue Guan Bing Za Zhi 2018; 46:232-233. [PMID: 29562433 DOI: 10.3760/cma.j.issn.0253-3758.2018.03.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
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Tseng HF, Chi M, Hung P, Harpaz R, Schmid DS, LaRussa P, Sy LS, Luo Y, Holmquist K, Takhar H, Jacobsen SJ. Family history of zoster and risk of developing herpes zoster. Int J Infect Dis 2017; 66:99-106. [PMID: 29146515 DOI: 10.1016/j.ijid.2017.11.016] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2017] [Accepted: 11/07/2017] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND Studies have investigated a possible association between family history of HZ and the occurrence of HZ. However, the results were inconclusive and susceptible to bias. We evaluated this association in an elderly population. METHODS The matched case-control study conducted at Kaiser Permanente Southern California in 2012-2015 included 656 incident HZ patients ≥60 whose skin lesion tested positive for varicella zoster virus by polymerase chain reaction. Half of the HZ patients were vaccinated with zoster vaccine as achieved by stratified sampling. The controls were randomly selected and 1:1 matched to the cases on sex, age (±1year), and zoster vaccination (±3 months of the case's vaccination date). Conditional logistic regression was used to estimate the odds ratio (OR) and 95% confidence interval (CI). RESULTS Having any blood relative with a history of HZ was associated with a slightly increased risk of HZ (adjusted OR=1.37, 95% CI 1.05-1.79). The adjusted OR associated with having one and two categories of first-degree blood relatives with a history of HZ was 1.30 (95% CI: 0.97-1.73) and 2.53 (95% CI: 1.17-5.44), respectively. CONCLUSIONS Our results suggested a weak association between the development of HZ and a positive family history of HZ among the elderly population.
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Affiliation(s)
- Hung Fu Tseng
- Department of Research Evaluation, Kaiser Permanente Southern California, Pasadena, CA, USA.
| | - Margaret Chi
- Department of Research Evaluation, Kaiser Permanente Southern California, Pasadena, CA, USA
| | - Peggy Hung
- Department of Research Evaluation, Kaiser Permanente Southern California, Pasadena, CA, USA
| | - Rafael Harpaz
- Division of Viral Diseases, Centers for Disease Control and Prevention, Atlanta, GA, USA
| | - D Scott Schmid
- Division of Viral Diseases, Centers for Disease Control and Prevention, Atlanta, GA, USA
| | - Philip LaRussa
- Department of Pediatrics, College of Physicians and Surgeons, Columbia University, New York City, NY, USA
| | - Lina S Sy
- Department of Research Evaluation, Kaiser Permanente Southern California, Pasadena, CA, USA
| | - Yi Luo
- Department of Research Evaluation, Kaiser Permanente Southern California, Pasadena, CA, USA
| | - Kimberly Holmquist
- Department of Research Evaluation, Kaiser Permanente Southern California, Pasadena, CA, USA
| | - Harpreet Takhar
- Department of Research Evaluation, Kaiser Permanente Southern California, Pasadena, CA, USA
| | - Steven J Jacobsen
- Department of Research Evaluation, Kaiser Permanente Southern California, Pasadena, CA, USA
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Wi JM, Sung KH, Chi M. 'Orbital volume restoration rate after orbital fracture'; a CT-based orbital volume measurement for evaluation of orbital wall reconstructive effect. Eye (Lond) 2017; 31:713-719. [PMID: 28085134 DOI: 10.1038/eye.2016.311] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2016] [Accepted: 11/27/2016] [Indexed: 11/09/2022] Open
Abstract
PurposeTo evaluate the effect of orbital reconstruction and factors related to the effect of orbital reconstruction by assessing of orbital volume using orbital computed tomography (CT) in cases of orbital wall fracture.MethodsIn this retrospective study, 68 patients with isolated blowout fractures were evaluated. The volumes of orbits and herniated orbital tissues were determined by CT scans using a three-dimensional reconstruction technique (the Eclipse Treatment Planning System). Orbital CT was performed preoperatively, immediately after surgery, and at final follow ups (minimum of 6 months). We evaluated the reconstructive effect of surgery making a new formula, 'orbital volume reconstruction rate' from orbital volume differences between fractured and contralateral orbits before surgery, immediately after surgery, and at final follow up.ResultsMean volume of fractured orbits before surgery was 23.01±2.60 cm3 and that of contralateral orbits was 21.31±2.50 cm3 (P=0.005). Mean volume of the fractured orbits immediately after surgery was 21.29±2.42 cm3, and that of the contralateral orbits was 21.33±2.52 cm3 (P=0.921). Mean volume of fractured orbits at final follow up was 21.50±2.44 cm3, and that of contralateral orbits was 21.32±2.50 cm3 (P=0.668). The mean orbital volume reconstruction rate was 100.47% immediately after surgery and 99.17% at final follow up. No significant difference in orbital volume reconstruction rate was observed with respect to fracture site or orbital implant type. Patients that underwent operation within 14 days of trauma had a better reconstruction rate at final follow up than patients who underwent operation over 14 days after trauma (P=0.039).ConclusionComputer-based measurements of orbital fracture volume can be used to evaluate the reconstructive effect of orbital implants and provide useful quantitative information. Significant reduction of orbital volume is observed immediately after orbital wall reconstruction surgery and the reconstruction effect is maintained for more than minimum 6 months. Patients that undergo surgery within 14 days of trauma has better reconstruction rates at final follow up, which supports the need for early surgery.
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Affiliation(s)
- J M Wi
- Department of Ophthalmology, Konyang University, Kim's Eye Hospital, Seoul, Korea
| | - K H Sung
- Department of Radiation Oncology, Gachon University Gil Medical Center, Incheon, Korea
| | - M Chi
- Department of Ophthalmology, Gachon University Gil Medical Center, Incheon, Korea
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Tseng HF, Chi M, Hung P, Harpaz R, Schmid DS, Larussa PS, Luo Y, Holmquist K, Sy L, Jacobsen S. Family History and the Risk of Herpes Zoster. Open Forum Infect Dis 2016. [DOI: 10.1093/ofid/ofw172.493] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Hung Fu Tseng
- Research and Evaluation, Kaiser Permanente Southern California, Pasadena, California
| | - Margaret Chi
- Research and Evaluation, Kaiser Permanente Southern California, Pasadena, California
| | - Peggy Hung
- Research and Evaluation, Kaiser Permanente Southern California, Pasadena, California
| | - Rafael Harpaz
- Centers for Disease Control and Prevention, Atlanta, Georgia
| | - D. Scott Schmid
- Centers for Disease Control and Prevention, Atlanta, Georgia
| | - Philip S. Larussa
- Pediatric Infectious Diseases, Columbia University, New York, New York
| | - Yi Luo
- Research and Evaluation, Kaiser Permanente Southern California, Pasadena, California
| | - Kimberly Holmquist
- Research and Evaluation, Kaiser Permanente Southern California, Pasadena, California
| | - Lina Sy
- Research and Evaluation, Kaiser Permanente Southern California, Pasadena, California
| | - Steven Jacobsen
- Research and Evaluation, Kaiser Permanente Southern California, Pasadena, California
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Chi M, Kim HJ, Vagefi R, Kersten RC. Modified tarsotomy for the treatment of severe cicatricial entropion. Eye (Lond) 2016; 30:992-7. [PMID: 27101749 DOI: 10.1038/eye.2016.77] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2015] [Accepted: 02/25/2016] [Indexed: 11/09/2022] Open
Abstract
PurposeTo analyze the efficacy of modified tarsotomy for the management of severe cicatricial entropion.MethodsTwenty-seven eyelids of 18 patients who underwent modified tarsotomy between March 2011 and July 2013 were retrospectively assessed. The data collected included patient demographics, etiology of cicatricial entropion, and surgical history. Outcome measures included surgical success rate, preoperative and postoperative eyelid position, and surgery-related complications.ResultsMean follow-up time was 13.2 months (range, 6-25.4 months), and the success rate was 81.8% (22 of 27 eyelids). Complications included eyelid margin notching (n=1) and blepharoptosis secondary to avascular necrosis of the distal marginal fragment (n=1), both were corrected by minor surgical intervention.ConclusionsThe study findings suggest modified tarsotomy is effective for the correction of severe cicatricial entropion.
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Affiliation(s)
- M Chi
- Department of Ophthalmology, Gachon University Gil Hospital, Incheon, Korea.,Department of Ophthalmology, University of California San Francisco, San Francisco, CA, USA
| | - H J Kim
- Department of Ophthalmology, University of California San Francisco, San Francisco, CA, USA.,Department of Ophthalmology, Permanente Medical Group, Hayward, CA, USA
| | - R Vagefi
- Department of Ophthalmology, University of California San Francisco, San Francisco, CA, USA
| | - R C Kersten
- Department of Ophthalmology, University of California San Francisco, San Francisco, CA, USA
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Chi M, Zhang L, Li JG, Qiu FB, Zhao YF, Wu YN. [The survey of polychlorinated dibenzo-p-dioxins, polychlorinated dibenzo-p-furans and dioxin-like polychlorinated bophenyls in twenty-eight market beef]. Zhonghua Yu Fang Yi Xue Za Zhi 2016; 50:364-366. [PMID: 27029371 DOI: 10.3760/cma.j.issn.0253-9624.2016.04.016] [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: 06/05/2023]
Affiliation(s)
- M Chi
- School of Public Health, Shanxi Medical University, Shanxi 030001, China
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Madder RD, Puri R, Muller JE, Harnek J, Götberg M, VanOosterhout S, Chi M, Wohns D, McNamara R, Wolski K, Madden S, Sidharta S, Andrews J, Nicholls SJ, Erlinge D. Confirmation of the Intracoronary Near-Infrared Spectroscopy Threshold of Lipid-Rich Plaques That Underlie ST-Segment-Elevation Myocardial Infarction. Arterioscler Thromb Vasc Biol 2016; 36:1010-5. [PMID: 26941016 DOI: 10.1161/atvbaha.115.306849] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2015] [Accepted: 02/17/2016] [Indexed: 11/16/2022]
Abstract
OBJECTIVE In a previous exploratory analysis, intracoronary near-infrared spectroscopy (NIRS) found the majority of culprit lesions in ST-segment-elevation myocardial infarction (STEMI) to contain a maximum lipid core burden index in 4 mm (maxLCBI4mm) of >400. This initial study was limited by a small sample size, enrollment at a single center, and post hoc selection of the maxLCBI4mm ≥400 threshold. This study was designed a priori to substantiate the ability of NIRS to discriminate STEMI culprit from nonculprit segments and to confirm the performance of the maxLCBI4mm ≥400 threshold. APPROACH AND RESULTS At 2 centers in the United States and Sweden, 75 STEMI patients underwent intracoronary NIRS imaging after establishing thrombolysis in myocardial infarction 3 flow, but before stenting. Blinded core laboratory analysis defined the culprit segment as the 10-mm segment distal to the proximal angiographic culprit margin. The remaining vessel was divided into contiguous 10-mm nonculprit segments. The maxLCBI4mm of culprit segments (median [interquartile range]: 543 [273-756]) was 4.4-fold greater than nonculprit segments (median [interquartile range]: 123 [0-307]; P<0.001). Receiver-operating characteristic analysis demonstrated that maxLCBI4mm differentiated culprit from nonculprit segments with high accuracy (c-statistic=0.83; P<0.001). A threshold maxLCBI4mm ≥400 identified STEMI culprit segments with a sensitivity of 64% and specificity of 85%. CONCLUSIONS This study substantiates the ability of NIRS to accurately differentiate STEMI culprit from nonculprit segments and confirms that a threshold maxLCBI4mm ≥400 is detected by NIRS in the majority of STEMI culprits.
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Affiliation(s)
- Ryan D Madder
- From the Frederik Meijer Heart and Vascular Institute, Spectrum Health, Grand Rapids, MI (R.D.M., S.V.O., M.C., D.W., R.M.N.); Cleveland Clinic Coordinating Center for Clinical Research (C5Research), OH (R.P., K.W.); Infraredx, Inc, Burlington, MA (J.E.M., S.M.); Department of Cardiology, Lund University, Lund, Sweden (J.H., M.G., D.E.); and Department of Medicine (S.S.) and South Australian Health and Medical Research Institute (J.A., S.J.N.), Royal Adelaide Hospital, University of Adelaide, Adelaide, Australia.
| | - Rishi Puri
- From the Frederik Meijer Heart and Vascular Institute, Spectrum Health, Grand Rapids, MI (R.D.M., S.V.O., M.C., D.W., R.M.N.); Cleveland Clinic Coordinating Center for Clinical Research (C5Research), OH (R.P., K.W.); Infraredx, Inc, Burlington, MA (J.E.M., S.M.); Department of Cardiology, Lund University, Lund, Sweden (J.H., M.G., D.E.); and Department of Medicine (S.S.) and South Australian Health and Medical Research Institute (J.A., S.J.N.), Royal Adelaide Hospital, University of Adelaide, Adelaide, Australia
| | - James E Muller
- From the Frederik Meijer Heart and Vascular Institute, Spectrum Health, Grand Rapids, MI (R.D.M., S.V.O., M.C., D.W., R.M.N.); Cleveland Clinic Coordinating Center for Clinical Research (C5Research), OH (R.P., K.W.); Infraredx, Inc, Burlington, MA (J.E.M., S.M.); Department of Cardiology, Lund University, Lund, Sweden (J.H., M.G., D.E.); and Department of Medicine (S.S.) and South Australian Health and Medical Research Institute (J.A., S.J.N.), Royal Adelaide Hospital, University of Adelaide, Adelaide, Australia
| | - Jan Harnek
- From the Frederik Meijer Heart and Vascular Institute, Spectrum Health, Grand Rapids, MI (R.D.M., S.V.O., M.C., D.W., R.M.N.); Cleveland Clinic Coordinating Center for Clinical Research (C5Research), OH (R.P., K.W.); Infraredx, Inc, Burlington, MA (J.E.M., S.M.); Department of Cardiology, Lund University, Lund, Sweden (J.H., M.G., D.E.); and Department of Medicine (S.S.) and South Australian Health and Medical Research Institute (J.A., S.J.N.), Royal Adelaide Hospital, University of Adelaide, Adelaide, Australia
| | - Matthias Götberg
- From the Frederik Meijer Heart and Vascular Institute, Spectrum Health, Grand Rapids, MI (R.D.M., S.V.O., M.C., D.W., R.M.N.); Cleveland Clinic Coordinating Center for Clinical Research (C5Research), OH (R.P., K.W.); Infraredx, Inc, Burlington, MA (J.E.M., S.M.); Department of Cardiology, Lund University, Lund, Sweden (J.H., M.G., D.E.); and Department of Medicine (S.S.) and South Australian Health and Medical Research Institute (J.A., S.J.N.), Royal Adelaide Hospital, University of Adelaide, Adelaide, Australia
| | - Stacie VanOosterhout
- From the Frederik Meijer Heart and Vascular Institute, Spectrum Health, Grand Rapids, MI (R.D.M., S.V.O., M.C., D.W., R.M.N.); Cleveland Clinic Coordinating Center for Clinical Research (C5Research), OH (R.P., K.W.); Infraredx, Inc, Burlington, MA (J.E.M., S.M.); Department of Cardiology, Lund University, Lund, Sweden (J.H., M.G., D.E.); and Department of Medicine (S.S.) and South Australian Health and Medical Research Institute (J.A., S.J.N.), Royal Adelaide Hospital, University of Adelaide, Adelaide, Australia
| | - Margaret Chi
- From the Frederik Meijer Heart and Vascular Institute, Spectrum Health, Grand Rapids, MI (R.D.M., S.V.O., M.C., D.W., R.M.N.); Cleveland Clinic Coordinating Center for Clinical Research (C5Research), OH (R.P., K.W.); Infraredx, Inc, Burlington, MA (J.E.M., S.M.); Department of Cardiology, Lund University, Lund, Sweden (J.H., M.G., D.E.); and Department of Medicine (S.S.) and South Australian Health and Medical Research Institute (J.A., S.J.N.), Royal Adelaide Hospital, University of Adelaide, Adelaide, Australia
| | - David Wohns
- From the Frederik Meijer Heart and Vascular Institute, Spectrum Health, Grand Rapids, MI (R.D.M., S.V.O., M.C., D.W., R.M.N.); Cleveland Clinic Coordinating Center for Clinical Research (C5Research), OH (R.P., K.W.); Infraredx, Inc, Burlington, MA (J.E.M., S.M.); Department of Cardiology, Lund University, Lund, Sweden (J.H., M.G., D.E.); and Department of Medicine (S.S.) and South Australian Health and Medical Research Institute (J.A., S.J.N.), Royal Adelaide Hospital, University of Adelaide, Adelaide, Australia
| | - Richard McNamara
- From the Frederik Meijer Heart and Vascular Institute, Spectrum Health, Grand Rapids, MI (R.D.M., S.V.O., M.C., D.W., R.M.N.); Cleveland Clinic Coordinating Center for Clinical Research (C5Research), OH (R.P., K.W.); Infraredx, Inc, Burlington, MA (J.E.M., S.M.); Department of Cardiology, Lund University, Lund, Sweden (J.H., M.G., D.E.); and Department of Medicine (S.S.) and South Australian Health and Medical Research Institute (J.A., S.J.N.), Royal Adelaide Hospital, University of Adelaide, Adelaide, Australia
| | - Kathy Wolski
- From the Frederik Meijer Heart and Vascular Institute, Spectrum Health, Grand Rapids, MI (R.D.M., S.V.O., M.C., D.W., R.M.N.); Cleveland Clinic Coordinating Center for Clinical Research (C5Research), OH (R.P., K.W.); Infraredx, Inc, Burlington, MA (J.E.M., S.M.); Department of Cardiology, Lund University, Lund, Sweden (J.H., M.G., D.E.); and Department of Medicine (S.S.) and South Australian Health and Medical Research Institute (J.A., S.J.N.), Royal Adelaide Hospital, University of Adelaide, Adelaide, Australia
| | - Sean Madden
- From the Frederik Meijer Heart and Vascular Institute, Spectrum Health, Grand Rapids, MI (R.D.M., S.V.O., M.C., D.W., R.M.N.); Cleveland Clinic Coordinating Center for Clinical Research (C5Research), OH (R.P., K.W.); Infraredx, Inc, Burlington, MA (J.E.M., S.M.); Department of Cardiology, Lund University, Lund, Sweden (J.H., M.G., D.E.); and Department of Medicine (S.S.) and South Australian Health and Medical Research Institute (J.A., S.J.N.), Royal Adelaide Hospital, University of Adelaide, Adelaide, Australia
| | - Samuel Sidharta
- From the Frederik Meijer Heart and Vascular Institute, Spectrum Health, Grand Rapids, MI (R.D.M., S.V.O., M.C., D.W., R.M.N.); Cleveland Clinic Coordinating Center for Clinical Research (C5Research), OH (R.P., K.W.); Infraredx, Inc, Burlington, MA (J.E.M., S.M.); Department of Cardiology, Lund University, Lund, Sweden (J.H., M.G., D.E.); and Department of Medicine (S.S.) and South Australian Health and Medical Research Institute (J.A., S.J.N.), Royal Adelaide Hospital, University of Adelaide, Adelaide, Australia
| | - Jordan Andrews
- From the Frederik Meijer Heart and Vascular Institute, Spectrum Health, Grand Rapids, MI (R.D.M., S.V.O., M.C., D.W., R.M.N.); Cleveland Clinic Coordinating Center for Clinical Research (C5Research), OH (R.P., K.W.); Infraredx, Inc, Burlington, MA (J.E.M., S.M.); Department of Cardiology, Lund University, Lund, Sweden (J.H., M.G., D.E.); and Department of Medicine (S.S.) and South Australian Health and Medical Research Institute (J.A., S.J.N.), Royal Adelaide Hospital, University of Adelaide, Adelaide, Australia
| | - Stephen J Nicholls
- From the Frederik Meijer Heart and Vascular Institute, Spectrum Health, Grand Rapids, MI (R.D.M., S.V.O., M.C., D.W., R.M.N.); Cleveland Clinic Coordinating Center for Clinical Research (C5Research), OH (R.P., K.W.); Infraredx, Inc, Burlington, MA (J.E.M., S.M.); Department of Cardiology, Lund University, Lund, Sweden (J.H., M.G., D.E.); and Department of Medicine (S.S.) and South Australian Health and Medical Research Institute (J.A., S.J.N.), Royal Adelaide Hospital, University of Adelaide, Adelaide, Australia
| | - David Erlinge
- From the Frederik Meijer Heart and Vascular Institute, Spectrum Health, Grand Rapids, MI (R.D.M., S.V.O., M.C., D.W., R.M.N.); Cleveland Clinic Coordinating Center for Clinical Research (C5Research), OH (R.P., K.W.); Infraredx, Inc, Burlington, MA (J.E.M., S.M.); Department of Cardiology, Lund University, Lund, Sweden (J.H., M.G., D.E.); and Department of Medicine (S.S.) and South Australian Health and Medical Research Institute (J.A., S.J.N.), Royal Adelaide Hospital, University of Adelaide, Adelaide, Australia
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Moon H, Kim Y, Wi JM, Chi M. Morphological characteristics and clinical manifestations of orbital emphysema caused by isolated medial orbital wall fractures. Eye (Lond) 2016; 30:582-7. [PMID: 26795415 DOI: 10.1038/eye.2015.285] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2015] [Accepted: 12/08/2015] [Indexed: 11/09/2022] Open
Abstract
PURPOSE To investigate the morphological characteristics and clinical manifestations of orbital emphysema in patients with isolated medial orbital wall fractures. METHODS This was a retrospective observational case series of 348 orbits of 348 patients with isolated medial orbital wall fractures. Medical charts were reviewed, and computed tomographic (CT) images were examined to determine the morphological characteristics of orbital emphysema. RESULTS Orbital emphysema was detected in 70 orbits (20.1%). Large and communited type fracture was related with the presence of orbital emphysema (P<0.05). Orbital air pockets were detected in medial or superior extraconal orbital segment in all cases with orbital emphysema. Swollen eyelid with crepitus (90.0%) and supraduction limitation (31.4%) were developed with orbital emphysema. All cases with supraduction limitation accompanied with superior extraconal orbital emphysema and superior rectus muscle deviation, and these eyes were fully recovered with conservative management without surgery. CONCLUSIONS Orbital emphysema can be a cause of ocular motility restriction following orbital wall fracture. If supraduction limitation is noted with isolated medial wall fracture and superior orbital emphysema with superior rectus muscle deviation is detected by CT scan, conservative management can be a good choice for spontaneous recovery delaying the surgery.
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Affiliation(s)
- H Moon
- Yeonsu Ever Bright Eye Clinic, Incheon, Korea
| | - Y Kim
- Department of Ophthalmology, Gachon University Gil Hospital, Incheon, Korea
| | - J M Wi
- Department of Ophthalmology, Gachon University Gil Hospital, Incheon, Korea
| | - M Chi
- Department of Ophthalmology, Gachon University Gil Hospital, Incheon, Korea
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15
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Cao Y, Li D, Xu B, Wang M, Zhen N, Man L, Zhang Y, Chi M. A microRNA-152 that targets the phosphatase and tensin homolog to inhibit low oxygen induced-apoptosis in human brain microvascular endothelial cells. Genet Mol Res 2016; 15:gmr7371. [DOI: 10.4238/gmr.15027371] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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16
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Madder RD, Khan M, Husaini M, Chi M, Dionne S, VanOosterhout S, Borgman A, Collins JS, Jacoby M. Combined Near-Infrared Spectroscopy and Intravascular Ultrasound Imaging of Pre-Existing Coronary Artery Stents. Circ Cardiovasc Imaging 2016; 9:CIRCIMAGING.115.003576. [DOI: 10.1161/circimaging.115.003576] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Affiliation(s)
- Ryan D. Madder
- From the Division of Cardiovascular Medicine, Frederik Meijer Heart and Vascular Institute, Spectrum Health, Grand Rapids, MI
| | - Mohsin Khan
- From the Division of Cardiovascular Medicine, Frederik Meijer Heart and Vascular Institute, Spectrum Health, Grand Rapids, MI
| | - Mustafa Husaini
- From the Division of Cardiovascular Medicine, Frederik Meijer Heart and Vascular Institute, Spectrum Health, Grand Rapids, MI
| | - Margaret Chi
- From the Division of Cardiovascular Medicine, Frederik Meijer Heart and Vascular Institute, Spectrum Health, Grand Rapids, MI
| | - Sarah Dionne
- From the Division of Cardiovascular Medicine, Frederik Meijer Heart and Vascular Institute, Spectrum Health, Grand Rapids, MI
| | - Stacie VanOosterhout
- From the Division of Cardiovascular Medicine, Frederik Meijer Heart and Vascular Institute, Spectrum Health, Grand Rapids, MI
| | - Andrew Borgman
- From the Division of Cardiovascular Medicine, Frederik Meijer Heart and Vascular Institute, Spectrum Health, Grand Rapids, MI
| | - J. Stewart Collins
- From the Division of Cardiovascular Medicine, Frederik Meijer Heart and Vascular Institute, Spectrum Health, Grand Rapids, MI
| | - Mark Jacoby
- From the Division of Cardiovascular Medicine, Frederik Meijer Heart and Vascular Institute, Spectrum Health, Grand Rapids, MI
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Zhang L, Roling LT, Wang X, Vara M, Chi M, Liu J, Choi SI, Park J, Herron JA, Xie Z, Mavrikakis M, Xia Y. Platinum-based nanocages with subnanometer-thick walls and well-defined, controllable facets. Science 2015. [DOI: 10.1126/science.aab0801] [Citation(s) in RCA: 735] [Impact Index Per Article: 81.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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Omari S, Waters M, Naranian T, Kim K, Perumalsamy AL, Chi M, Greenblatt E, Moley KH, Opferman JT, Jurisicova A. Mcl-1 is a key regulator of the ovarian reserve. Cell Death Dis 2015; 6:e1755. [PMID: 25950485 PMCID: PMC4669721 DOI: 10.1038/cddis.2015.95] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [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: 11/14/2014] [Revised: 02/07/2015] [Accepted: 02/18/2015] [Indexed: 02/05/2023]
Abstract
A majority of ovarian follicles are lost to natural death, but the disruption of factors involved in maintenance of the oocyte pool results in a further untimely follicular depletion known as premature ovarian failure. The anti-apoptotic B-cell lymphoma 2 (Bcl-2) family member myeloid cell leukemia-1 (MCL-1) has a pro-survival role in various cell types; however, its contribution to oocyte survival is unconfirmed. We present a phenotypic characterization of oocytes deficient in Mcl-1, and establish its role in maintenance of the primordial follicle (PMF) pool, growing oocyte survival and oocyte quality. Mcl-1 depletion resulted in the premature exhaustion of the ovarian reserve, characterized by early PMF loss because of activation of apoptosis. The increasingly diminished surviving cohort of growing oocytes displayed elevated markers of autophagy and mitochondrial dysfunction. Mcl-1-deficient ovulated oocytes demonstrated an increased susceptibility to cellular fragmentation with activation of the apoptotic cascade. Concomitant deletion of the pro-apoptotic Bcl-2 member Bcl-2-associated X protein (Bax) rescued the PMF phenotype and ovulated oocyte death, but did not prevent the mitochondrial dysfunction associated with Mcl-1 deficiency and could not rescue long-term breeding performance. We thus recognize MCL-1 as the essential survival factor required for conservation of the postnatal PMF pool, growing follicle survival and effective oocyte mitochondrial function.
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Affiliation(s)
- S Omari
- 1] Lunenfeld Tanenbaum Research Institute, Mount Sinai Hospital, 25 Orde Street, Toronto, Ontario M5T 3H7, Canada [2] Department of Physiology, University of Toronto, 1 King's College Circle, Toronto, Ontario M5S 1A8, Canada
| | - M Waters
- Lunenfeld Tanenbaum Research Institute, Mount Sinai Hospital, 25 Orde Street, Toronto, Ontario M5T 3H7, Canada
| | - T Naranian
- 1] Lunenfeld Tanenbaum Research Institute, Mount Sinai Hospital, 25 Orde Street, Toronto, Ontario M5T 3H7, Canada [2] Department of Physiology, University of Toronto, 1 King's College Circle, Toronto, Ontario M5S 1A8, Canada
| | - K Kim
- 1] Lunenfeld Tanenbaum Research Institute, Mount Sinai Hospital, 25 Orde Street, Toronto, Ontario M5T 3H7, Canada [2] Department of Physiology, University of Toronto, 1 King's College Circle, Toronto, Ontario M5S 1A8, Canada
| | - A L Perumalsamy
- Lunenfeld Tanenbaum Research Institute, Mount Sinai Hospital, 25 Orde Street, Toronto, Ontario M5T 3H7, Canada
| | - M Chi
- Department of Obstetrics and Gynecology, Washington University in St. Louis, 660S Euclid Avenue, St. Louis, MO 63110, USA
| | - E Greenblatt
- 1] Centre for Fertility and Reproductive Health, Mount Sinai Hospital, 250 Dundas Street, Toronto, Ontario M5T 2Z5, Canada [2] Department of Obstetrics and Gynecology, University of Toronto, 92 College Street, Toronto, Ontario M5G 1L4, Canada
| | - K H Moley
- Department of Obstetrics and Gynecology, Washington University in St. Louis, 660S Euclid Avenue, St. Louis, MO 63110, USA
| | - J T Opferman
- Department of Biochemistry, St. Jude Children's Research Hospital, MS 340, Room D4063D, 262 Danny Thomas Place, Memphis, TN 38105, USA
| | - A Jurisicova
- 1] Lunenfeld Tanenbaum Research Institute, Mount Sinai Hospital, 25 Orde Street, Toronto, Ontario M5T 3H7, Canada [2] Department of Physiology, University of Toronto, 1 King's College Circle, Toronto, Ontario M5S 1A8, Canada [3] Department of Obstetrics and Gynecology, University of Toronto, 92 College Street, Toronto, Ontario M5G 1L4, Canada
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Khan M, Chi M, Turfe Z, Dionne S, Schmale A, LaCombe A, O'Brien A, Farley R, Klungle D, Singh S, VanOosterhout SM, Madder RD. CRT-402 Fibrous Cap Thickness of Large Lipid-rich Plaques Detected by Intracoronary Near-infrared Spectroscopy. JACC Cardiovasc Interv 2015. [DOI: 10.1016/j.jcin.2014.12.141] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Chi M, Chen J, Ye Y, Tseng HY, Lai F, Tay KH, Jin L, Guo ST, Jiang CC, Zhang XD. Adipocytes contribute to resistance of human melanoma cells to chemotherapy and targeted therapy. Curr Med Chem 2014; 21:1255-67. [PMID: 24304284 DOI: 10.2174/0929867321666131129114742] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2013] [Revised: 11/08/2013] [Accepted: 11/25/2013] [Indexed: 11/22/2022]
Abstract
Epidemiological evidence has linked the development and progression of several cancers including melanoma with obesity. However, whether obesity impinges on responses of cancer cells to treatment remains less understood. Here we report that human adipocytes contribute to resistance of melanoma cells to various therapeutic agents. Exposure to media from adipocyte cultures (adipocyte media) increased cell proliferation and reduced sensitivity of melanoma cells to apoptosis induced by diverse chemotherapeutic drugs, including the DNA-damaging drug cisplatin, the microtubuletargeting agent docetaxel, and the histone deacetylase inhibitor SAHA. This was associated with increased activation of PI3K/Akt and MEK/ERK signaling, and was attenuated by a PI3K or MEK inhibitor. The effect of adipocyte media on melanoma cells was, at least in part, due to the interaction between the adipokine leptin and its long form receptor OB-Rb, in that immunodepletion of leptin in adipocyte media or siRNA knockdown of OB-Rb in melanoma cells reversed the increase in Akt and ERK activation, enhancement in cell proliferation, and importantly, protection of melanoma cells against the drugs. In support, recombinant leptin partially recapitulated the effect of adipocyte media on melanoma cells. Of note, OB-Rb was increased on the surface of melanoma cells compared to melanocytes, whereas leptin short form receptors appeared to be suppressed post-transcriptionally, suggesting that OB-Rb was selectively upregulated in melanoma cells. Collectively, these results indicate that adipocytes contribute to the resistance of melanoma cells to chemotherapeutic drugs and agents targeting the PI3K/Akt and MEK/ERK pathways, and suggest that inhibition of the leptin/ OB-Rb system may be useful to improve the efficacy of multiple therapeutic approaches in the treatment of melanoma.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | - X D Zhang
- LS3-49, Life Science Building, University of Newcastle, Callaghan, NSW, Australia.
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Ahluwalia M, Venur VA, Chi M, Chao S, Lilyana A, Elson P, Suh J, Barnett G. BM-02 * NEW DISEASE SPECIFIC GRADED PROGNOSTIC ASSESSMENT OF BRAIN METASTASIS FROM LUNG, BREAST, MELANOMA AND RENAL MALIGNANCIES. Neuro Oncol 2014. [DOI: 10.1093/neuonc/nou240.2] [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: 11/13/2022] Open
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Madder RD, Husaini M, Davis AT, Vanoosterhout SM, Khan M, Chi M, Turfe Z, Schmale A, Dionne S, Wohns DH, Collins JS, Jacoby M, Decker J, Hendricks M, Sum S, Madden S, Muller JE. TCT- 398 Identification of Vulnerable Patients by Intracoronary Near-infrared Spectroscopy. J Am Coll Cardiol 2014. [DOI: 10.1016/j.jacc.2014.07.447] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Husaini M, Klungle D, Khan M, Vanoosterhout SM, Chi M, Turfe Z, Dionne S, Schmale A, Madder RD. TCT-401 Detection by Intracoronary Near-infrared Spectroscopy of Lipid-rich Plaques within Remotely Implanted Stents. J Am Coll Cardiol 2014. [DOI: 10.1016/j.jacc.2014.07.450] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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24
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Madder R, Husaini M, Harnek J, Gotberg M, Chi M, Turfe Z, Dionne S, Schmale A, Vanoosterhout S, Erlinge D. COMPARATIVE LIPID BURDEN OF CULPRIT LESIONS ACCORDING TO THE CLINICAL PRESENTATION OF ACUTE CORONARY SYNDROME. J Am Coll Cardiol 2014. [DOI: 10.1016/s0735-1097(14)61770-8] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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25
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Chen C, Kang Y, Huo Z, Zhu Z, Huang W, Xin HL, Snyder JD, Li D, Herron JA, Mavrikakis M, Chi M, More KL, Li Y, Markovic NM, Somorjai GA, Yang P, Stamenkovic VR. Highly Crystalline Multimetallic Nanoframes with Three-Dimensional Electrocatalytic Surfaces. Science 2014; 343:1339-43. [DOI: 10.1126/science.1249061] [Citation(s) in RCA: 2051] [Impact Index Per Article: 205.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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Turfe Z, Husaini M, Chi M, Schmale A, Dionne S, Vanoosterhout S, Madder RD. CRT-308 Detection by Intracoronary Near-Infrared Spectroscopy of Lipid Core Plaque at Culprit Sites in Survivors of Cardiac Arrest. JACC Cardiovasc Interv 2014. [DOI: 10.1016/j.jcin.2014.01.106] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Beekman C, Siemons W, Ward TZ, Chi M, Howe J, Biegalski MD, Balke N, Maksymovych P, Farrar AK, Romero JB, Gao P, Pan XQ, Tenne DA, Christen HM. Phase transitions, phase coexistence, and piezoelectric switching behavior in highly strained BiFeO(3) films. Adv Mater 2013; 25:5561-7. [PMID: 23847158 DOI: 10.1002/adma.201302066] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/07/2013] [Indexed: 05/12/2023]
Abstract
Highly strained BiFeO3 films transition into a true tetragonal state at 430 °C but remain polar to much higher temperatures (∼800 °C). Piezoelectric switching is only possible up to 300 °C, i.e., at temperatures for which strain stabilizes the stripe-like coexistence of multiple polymorphs.
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Affiliation(s)
- C Beekman
- Materials Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge, TN, 37831, USA
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Madder RD, Husaini M, Harnek J, Gotberg M, Chi M, Turfe Z, Klungle D, Vanoosterhout SM, Erlinge D. TCT-653 An Intracoronary Near-infrared Spectroscopy Signature of Culprit Lesions in Non-ST-Segment Elevation Myocardial Infarction. J Am Coll Cardiol 2013. [DOI: 10.1016/j.jacc.2013.08.1402] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Silverberg MJ, Said J, Zha HD, Abrams DI, Martinez-Maza O, McGuire M, Haque R, Chi M, Xu L, Castor B, Chao C. Effect of immunodeficiency and tumor marker expression on HIV-related diffuse large B-cell lymphoma prognosis. Infect Agent Cancer 2012. [PMCID: PMC3330089 DOI: 10.1186/1750-9378-7-s1-p47] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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Chao C, Silverberg MJ, Martínez-Maza O, Chi M, Abrams DI, Haque R, Zha HD, McGuire M, Xu L, Said J. Epstein-Barr virus infection and expression of B-cell oncogenic markers in HIV-related diffuse large B-cell Lymphoma. Clin Cancer Res 2012; 18:4702-12. [PMID: 22711707 PMCID: PMC3846529 DOI: 10.1158/1078-0432.ccr-11-3169] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
PURPOSE Epstein-Barr virus (EBV)-mediated lymphomagenesis in the setting of HIV infection has been widely accepted. However, little is known about how EBV impacts prognosis. We investigated the hypothesis that EBV infection is associated with expression of specific B-cell oncogenic markers in HIV-related diffuse large B-cell lymphoma (DLBCL) and examined the prognostic use of detecting EBV infection. EXPERIMENTAL DESIGN HIV-related DLBCL cases diagnosed between 1996 and 2007 within Kaiser Permanente California were identified. Immunohistochemical staining was used to analyze the expression of selected markers that are cell-cycle regulators, B-cell activators, and antiapoptotic proteins among others. EBV infection was determined by in situ hybridization of EBV RNA. Correlations between EBV and marker expression were examined using Spearman correlation coefficient. The prognostic use of EBV status was examined in multivariable Cox model adjusting for International Prognostic Index (IPI). Receiver-operating characteristics (ROC) analysis was used to evaluate improvement in model discrimination. RESULTS Seventy HIV-related DLBCL cases were included (31% EBV±). EBV+ tumor was associated with increased expression of BLIMP1 and CD30 and reduced expression of BCL6 and LMO2. EBV+ tumor was independently associated with elevated 2-year overall mortality [HR, 3.3; 95% confidence interval (CI), 1.6-6.6]. Area under the ROC curve showed improved model discrimination when incorporating tumor EBV status with IPI in the prediction model [0.65 vs. 0.74 (IPI only)]. CONCLUSION Our results suggest that EBV infection was associated with expression of several tumor markers that are involved in the NF-κB pathway and that detecting tumor EBV status may have prognostic use in HIV-related DLBCLs.
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MESH Headings
- Acquired Immunodeficiency Syndrome/complications
- Acquired Immunodeficiency Syndrome/metabolism
- Acquired Immunodeficiency Syndrome/pathology
- Adaptor Proteins, Signal Transducing/metabolism
- Apoptosis
- B7-1 Antigen/metabolism
- Cell Cycle Proteins/metabolism
- DNA-Binding Proteins/metabolism
- Epstein-Barr Virus Infections/complications
- Epstein-Barr Virus Infections/metabolism
- Epstein-Barr Virus Infections/pathology
- Follow-Up Studies
- Gene Expression Regulation, Neoplastic
- Herpesvirus 4, Human/isolation & purification
- Herpesvirus 4, Human/pathogenicity
- Humans
- In Situ Hybridization
- Kaplan-Meier Estimate
- Ki-1 Antigen/metabolism
- LIM Domain Proteins/metabolism
- Lymphoma, AIDS-Related/complications
- Lymphoma, AIDS-Related/metabolism
- Lymphoma, AIDS-Related/pathology
- Lymphoma, Large B-Cell, Diffuse/complications
- Lymphoma, Large B-Cell, Diffuse/metabolism
- Lymphoma, Large B-Cell, Diffuse/virology
- NF-kappa B/metabolism
- Positive Regulatory Domain I-Binding Factor 1
- Prognosis
- Proto-Oncogene Proteins/metabolism
- Proto-Oncogene Proteins c-bcl-6
- Repressor Proteins/metabolism
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Affiliation(s)
- Chun Chao
- Department of Research and Evaluation, Kaiser Permanente Southern California, 100 S. Los Robles Ave, 2nd Floor, Los Angeles, CA 91101, USA.
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Tseng HF, Chi M, Smith N, Marcy SM, Sy LS, Jacobsen SJ. Herpes Zoster Vaccine and the Incidence of Recurrent Herpes Zoster in an Immunocompetent Elderly Population. J Infect Dis 2012; 206:190-6. [DOI: 10.1093/infdis/jis334] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Tseng H, Chi M, Smith N, Marcy S, Sy L, Jacobsen S. Effectiveness of herpes zoster vaccine on recurrent herpes zoster among an immunocompetent elderly population. Int J Infect Dis 2012. [DOI: 10.1016/j.ijid.2012.05.1017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022] Open
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Beaber B, Chi M, Brara S, Zhang J, Langer-Gould A. Treatment with Beta-Interferons or Glatiramer Acetate and the Risk of Postpartum Multiple Sclerosis Relapses (P06.192). Neurology 2012. [DOI: 10.1212/wnl.78.1_meetingabstracts.p06.192] [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: 11/15/2022] Open
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Chao CR, Abrams D, Silverberg MJ, Haque R, Zha HD, Martinez-Maza O, McGuire M, Chi M, Castor B, Xu L, Leyden W, Habel L, Said J. Abstract 4643: Epstein-Barr virus infection (EBV) and expression of B-cell oncogenic markers in HIV+ diffuse large B-cell lymphoma (DLBCL). Cancer Res 2011. [DOI: 10.1158/1538-7445.am2011-4643] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Background: Lymphomagenicity of EBV in the setting of HIV infection has been widely accepted. However, the underlying carcinogenic mechanism of EBV is largely unknown and warrants further study. We sought to investigate the hypothesis that EBV infection is associated with expression of specific B-cell oncogenic markers in HIV+ DLBCL.
Methods: HIV+ DLBCL cases diagnosed between 1996-2007 within the Kaiser Permanente California Health Plan were identified. Archived tumor specimens were retrieved and H&E slides were reviewed to identify representative tumor blocks for tissue microarray (TMA) construction. Immunohistochemistry staining was performed on TMA cores to analyze the expression of selected B-cell oncogenic markers in the following categories: (1) mutagenic molecule (that induce mutation/translocation), (2) cell cycle promoter, (3) B-cell activator and (4) anti-apoptotic protein. Percent of DLBCL cells with visible marker staining was scored on a scale from 0-4 (0-9%, 10-24%, 25-49%, 50-74% and ≥75%). EBV infection was determined by in situ hybridization of EBV encoded RNA and was considered positive if ≥10% of the DLBCL cells had detectable EBV. Correlations between EBV and marker expression were examined using Spearman's correlation coefficient.
Results: We identified 194 HIV+ DLBCL cases. Of these, 117 lacked sufficient tissue; another 7 had undetermined EBV status; and 70 were included in the study. Marker expressions are shown in the table:
Conclusion: There was a suggestion that Cyclin E and PKC-β2 were more commonly expressed in EBV+ DLBCL, and that FOXP1, BCL2, and Survivin were more commonly expressed in EBV- DLBCL. However, none of these associations reached statistical significance. These findings provide limited support that the underlying carcinogenic mechanism of EBV involves the mediation of the expression of oncogenic markers examined here. However, our study power was limited, thus requiring confirmation in larger studies.
Citation Format: {Authors}. {Abstract title} [abstract]. In: Proceedings of the 102nd Annual Meeting of the American Association for Cancer Research; 2011 Apr 2-6; Orlando, FL. Philadelphia (PA): AACR; Cancer Res 2011;71(8 Suppl):Abstract nr 4643. doi:10.1158/1538-7445.AM2011-4643
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Affiliation(s)
- Chun R. Chao
- 1Kaiser Permanente Southern California, Pasadena, CA
| | - Donald Abrams
- 2University of California, San Francisco, San Francisco, CA
| | | | - Reina Haque
- 1Kaiser Permanente Southern California, Pasadena, CA
| | | | | | | | - Margaret Chi
- 1Kaiser Permanente Southern California, Pasadena, CA
| | | | - Lanfang Xu
- 1Kaiser Permanente Southern California, Pasadena, CA
| | - Wendy Leyden
- 3Kaiser Permanente Northern California, Oakland, CA
| | - Laurel Habel
- 3Kaiser Permanente Northern California, Oakland, CA
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Diedrichs H, Hagemeister J, Chi M, Boelck B, Müller-Ehmsen J, Schneider CA. Activation of the calcineurin/NFAT signalling cascade starts early in human hypertrophic myocardium. J Int Med Res 2008; 35:803-18. [PMID: 18034994 DOI: 10.1177/147323000703500609] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Cardiac hypertrophy is an independent risk factor for heart failure. Recent studies on gene regulation of proteins have involved intracellular Ca2+ homeostasis. The Ca2+-sensitive phosphatase, calcineurin, is one potential regulator of the hypertrophic response, so we aimed to investigate the calcineurin-dependent signal pathway at different stages of hypertrophy in human myocardium. We found the calcineurin pathway to be significantly activated in hypertrophic compared with non-hypertrophic myocardium as demonstrated by increased calcineurin activity and expression of calcineurin A-beta and B, and GATA-4, and a shift of phosphorylated cytoplasmic NFAT-3 into the nucleus as dephosphorylated nuclear NFAT-3. There was a tendency for these changes to be more pronounced in the decompensated compared with the compensated hypertrophic myocardium. The present study provides evidence for significant activation of the Ca2+-triggered calcineurin pathway in hypertrophic humans. Already present in compensated hypertrophy it showed a tendency to a further increase following transition to decompensated hypertrophy.
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Affiliation(s)
- H Diedrichs
- Laboratory of Muscle Research and Molecular Cardiology, Department of Internal Medicine, University of Cologne, Cologne, Germany.
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Liu H, Choi B, Zhang J, Tutt T, Chi M, Wang C, Luo D, Prado K, Mohan R, Dong L, Balter P. Assessing Respiration-Induced Tumor Motion and Margin of Internal Target Volume for Image-Guided Radiotherapy of Lung Cancers. Int J Radiat Oncol Biol Phys 2005. [DOI: 10.1016/j.ijrobp.2005.07.058] [Citation(s) in RCA: 6] [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: 11/28/2022]
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Abstract
Insulin-like growth factors are involved in the regulation of gonadotropin secretion. Insulin-like growth factor I (IGF-I) has an augmenting effect on gonodotropin-releasing hormone (GnRH)-induced luteinizing hormone (LH) release from female rat gonadotrophs that is facilitated by estradiol. To identify the underlying mechanisms, we investigated whether IGF-I influences total LH pool and the production of intracellular inositol phosphate. In another series of experiments we tested whether IGF-II and estradiol affect LH release of gonadotrophs. Pituitary cells were incubated with 100 pM IGF-I and/or 100 pM estradiol for 24 h. They were stimulated, partially in the presence of Wortmannin, an inhibitor of phosphoinositide 3-kinase, with 330 pM GnRH for 3 h. Subsequently, total LH pool (released and remaining hormone content in lysed cells) in cultures was measured. Intracellular inositol trisphosphate of alphaT3-1 cells, a gonadotrope cell line, treated with estradiol and IGF-I as described before and stimulated with 100 nM GnRH for 15 min was analyzed by ion exchange chromatography. To determine the interaction of IGF-II and estradiol on GnRH-stimulated LH secretion, cells were treated with increasing concentrations of IGF-II (0.05 pM-10 nM) and 100 pM estradiol. IGF-I significantly increased the accumulation of inositol trisphosphate in basal and GnRH-stimulated cells. IGF-I, estradiol, or their combinations did not change total LH pool, although they enhanced LH secretion. Wortmannin abolished the positive effects of IGF-I and estradiol on LH secretion. IGF-II alone increased basal, but not GnRH-induced LH secretion at low concentrations (0.05 pM). Additional estradiol treatment further increased basal, but not GnRH-induced LH secretion. In conclusion, our results suggest that increased LH secretion from female anterior pituitary cells after IGF treatment is due to the amplification of early signal transduction steps rather than changes in LH pool. The inositol trisphosphate signaling pathway is involved in the regulation of LH secretion from gonadotrophs treated with IGF-I. It is not likely that IGF-II plays an important role in the regulation of gonadotropin secretion.
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Affiliation(s)
- J M Weiss
- Department of Obstetrics and Gynecology, Medical University of Luebeck, Ratzeburger Allee 160, 23538 Luebeck, Germany.
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Abstract
To assess the Karnofsky Performance Status (KPS) scale and the Eastern Cooperative Oncology Group (ECOG) scale with respect to interobserver reliability and interobserver difference between the two scales, 100 consecutive patients in a medical oncology unit were assessed using both scales, which were then given to three independent raters and also to the patients themselves. There was a high level of agreement between most paired assessors. There were three exceptions, which were the RMO/patient and nurse/patient pairs on the KPS scale and the RMO/patient pair on the ECOG scale. The level of agreement was better on the ECOG scale. For individual raters there is no statistical difference between the ECOG and Karnofsky scales. There was good agreement between all raters for both scales. Interobserver variability was less using the ECOG scale. We conclude that either scale could be used with good interobserver reliability. The ECOG scale minimises differences between observers.
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Affiliation(s)
- A E Taylor
- Department of Medical Oncology, Royal Adelaide Hospital Cancer Centre, Royal Adelaide Hospital, SA, Australia
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Taylor A, Olver I, Sivanthan T, Chi M, Purnell C. Observer error in grading performance status in cancer patients. Eur J Cancer 1999. [DOI: 10.1016/s0959-8049(99)81891-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Abstract
Organophosphate and other ligands were examined for binding on the membrane-bond nicotinic receptor at three conformational states. Soman (pinacolyl methylphosphonofluoridate), sarin (isopropyl methylphosphonofluoridate, tabun (ethyl N-dimethylphosphoramidocyanidate) and phencyclidine did not show any effect on the binding of [25I]alpha-cobrotoxin to the nicotinic receptor. However, VX, O-ethyl-S-(2-diisopropylaminoethyl) methylphosphonothiolate, at concentrations higher than 10 umol/L exhibited profound inhibition on the equilibrium binding rates in a concentration-dependent manner. Agonist nicotine and antagonist d-tubocurarine also showed significant inhibitions.
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Affiliation(s)
- M Chi
- Institute of Pharmacology and Toxicology, Beijing, China
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Sank A, Chi M, Shima T, Reich R, Martin GR. Increased calcium levels alter cellular and molecular events in wound healing. Surgery 1989; 106:1141-7; discussion 1147-8. [PMID: 2555928] [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: 01/01/2023]
Abstract
Surgical morbidity is dictated directly by wound healing. We have studied the effects of elevated calcium levels using cultured keratinocytes in vitro on two of the rate-limiting steps of wound healing, chemotaxis (directed migration) and adhesion. We found that the increased calcium (10 mmol/L) significantly inhibited both keratinocyte chemotaxis and adhesion (p less than 0.05). The calcium effect on adhesion could be partially reversed by pretreatment with the calcium channel blocker verapamil. Based on these data, an animal model was formulated in which topical calcium (5 mmol/L/day) was added to linear incision wounds. This resulted in significantly (p less than 0.05) delayed wound contraction characteristic of a chronic or impaired wound. Wound contraction depends on the presence of fibroblasts that synthesize collagen. The chronic wound was characterized by increased collagenase activity (p less than 0.05) but little alteration in collagen I synthesis. The addition of verapamil to these chronic wounds resulted in improved wound closure. These studies define the molecular and cellular events occurring as a result of the addition of elevated levels of calcium both in vitro and in vivo. Calcium may play a key role in the pathogenesis of chronic wounds.
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Affiliation(s)
- A Sank
- Laboratory of Developmental Biology and Anomalies, National Institutes of Health, Bethesda, Md. 20892
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Natowicz M, Hallett DW, Frier C, Chi M, Schlesinger PH, Baenziger JU. Recognition and receptor-mediated uptake of phosphorylated high mannose-type oligosaccharides by cultured human fibroblasts. J Cell Biol 1983; 96:915-9. [PMID: 6300141 PMCID: PMC2112397 DOI: 10.1083/jcb.96.3.915] [Citation(s) in RCA: 25] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
The intracellular transport of newly synthesized lysosomal hydrolases to lysosomes requires the presence of one or more phosphorylated high mannose-type oligosaccharides per enzyme. A receptor that mediates mannose-6-PO4-specific uptake of lysosomal enzymes is expressed on the surface of fibroblasts and presumably accounts for the intracellular transport of newly synthesized enzymes to the lysosome. In this study, we examined the internalization of lysosomal enzyme-derived phosphorylated oligosaccharides by cultured human fibroblasts. Oligosaccharides of known specific activity bearing a single phosphate in monoester linkage were internalized with Kuptake of 3.2 X 10(-7) M, whereas oligosaccharides bearing two phosphates in monoester linkage were internalized with a Kuptake of 3.9 X 10(-8) M. Thus, phosphorylated high mannose-type oligosaccharides appear to be the minimal structure required for recognition and uptake by the fibroblast receptor. The finding that the Kuptake for monophosphorylated oligosaccharides is 100-fold less than the reported Ki for mannose-6-phosphate indicates that the fibroblast phosphomannosyl receptor contains a binding site that recognizes features of the oligosaccharide in addition to mannose-6-phosphate.
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Chi M, Irwin L. Elastic deformations in strips with holes loaded through pins. J Res Natl Bur Stand (1977) 1959. [DOI: 10.6028/jres.062.026] [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: 11/04/2022] Open
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