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Finkelstein S, Timmaraju VA, Samankan S, O'Malley Q, Kapustin D, Spaulding S, Xing M, Matloob A, Beute J, Seo G, Saturno M, Greenberg L, Wein L, Gonzalez-Velazquez C, Doyle S, Levine J, Urken M, Brandwein-Weber M. Functional loss of tumor suppressor genes detected by loss of heterozygosity, but not driver mutations, predicts aggressive lymph node status in papillary thyroid carcinoma. Pathol Res Pract 2023; 251:154842. [PMID: 37890270 DOI: 10.1016/j.prp.2023.154842] [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] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/24/2023] [Accepted: 09/30/2023] [Indexed: 10/29/2023]
Abstract
BACKGROUND Recognizing aggressive tumor biology is essential to optimizing patient management for papillary thyroid carcinomas (PTC). Aggressive lymph node (ALN) status is one feature that influences decision-making. We evaluated genomic deletions in regions of tumor suppressor genes, detected by loss of heterozygosity (LOH) analysis, to understand causal alterations linked to thyroid cancer aggressiveness and to serve as a molecular diagnostic biomarker for ALN status. METHODS We analyzed 105 primary PTC enriched for patients with ALN (64% with, 36% without). We also analyzed 39 positive lymph nodes (79% with, 21% without ALN). LOH was determined using a panel of 25 polymorphic microsatellite alleles targeting 10 genomic loci harboring common tumor suppressor genes. Additionally, ThyGeNEXT® and ThyraMIR® assays were performed. RESULTS LOH was detected in 43/67 primary PTC from patients with ALN status, compared with only 5/38 primary PTC without ALN (minimal metastatic burden) (P=0.0000003). This is further supported by post hoc analyses of paired primary and metastatic samples. Paired samples from patients with ALN are more likely to harbor LOH, compared to the ALN negative group (P=0.0125). Additionally, 12/31 paired samples from patients with ALN demonstrated additional or different LOH loci in metastatic samples compared to the primary tumor samples. No association was seen between ALN and mutational, translocation, or microRNA data. CONCLUSIONS LOH detected in primary PTC significantly predicts ALN status. Analysis of paired primary and metastatic samples from patients with / without ALN status further supports this relationship. The acquisition of LOH at additional loci is common in lymph nodes from patients with ALN status. SIMPLE SUMMARY A subset of patients with papillary thyroid carcinoma (PTC) will develop recurrent disease. One known predictor of recurrence is the American Thyroid Association category "Aggressive Lymph Node" (ALN) disease, considering metastatic burden. Loss of heterozygosity (LOH) - chromosomal loss in regions of tumor suppressor genes - has yet to be investigated as a possible mechanism driving ALN status in PTC. The ability to predict ALN status prior to surgery can guide the extent of surgery and postoperative treatment options. We found that paired samples from patients with ALN are more likely to harbor LOH, compared to patients without ALN disease. 38% of patients with ALN demonstrated additional or different LOH loci in metastatic samples compared to the primary tumor samples. LOH complements current molecular analysis of thyroid cancer when searching for evidence of aggressive biology.
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Affiliation(s)
- Sydney Finkelstein
- Interpace Diagnostics, Interpace Biosciences, Pittsburgh, PA, United States
| | | | - Shabnam Samankan
- Department of Pathology, Icahn School of Medicine, Mount Sinai Health System, New York, United States
| | - Quinn O'Malley
- THANC (Thyroid, Head and Neck Cancer) Foundation, 10 Union Square East, New York, NY 10003, United States
| | - Danielle Kapustin
- THANC (Thyroid, Head and Neck Cancer) Foundation, 10 Union Square East, New York, NY 10003, United States; Department of Otolaryngology - Head and Neck Surgery, Icahn School of Medicine, Mount Sinai Health System, New York, NY, United State
| | - Sarah Spaulding
- THANC (Thyroid, Head and Neck Cancer) Foundation, 10 Union Square East, New York, NY 10003, United States
| | - Monica Xing
- THANC (Thyroid, Head and Neck Cancer) Foundation, 10 Union Square East, New York, NY 10003, United States
| | - Ammar Matloob
- Department of Pathology, Icahn School of Medicine, Mount Sinai Health System, New York, United States
| | - John Beute
- THANC (Thyroid, Head and Neck Cancer) Foundation, 10 Union Square East, New York, NY 10003, United States
| | - Gabriella Seo
- THANC (Thyroid, Head and Neck Cancer) Foundation, 10 Union Square East, New York, NY 10003, United States
| | - Michael Saturno
- THANC (Thyroid, Head and Neck Cancer) Foundation, 10 Union Square East, New York, NY 10003, United States
| | - Lily Greenberg
- THANC (Thyroid, Head and Neck Cancer) Foundation, 10 Union Square East, New York, NY 10003, United States
| | - Lauren Wein
- THANC (Thyroid, Head and Neck Cancer) Foundation, 10 Union Square East, New York, NY 10003, United States
| | - Camilo Gonzalez-Velazquez
- THANC (Thyroid, Head and Neck Cancer) Foundation, 10 Union Square East, New York, NY 10003, United States
| | - Scott Doyle
- Department of Pathology and Anatomical Sciences, University at Buffalo, Jacobs School of Medicine, Buffalo, NY, United States
| | - Jonathan Levine
- Interpace Diagnostics, Interpace Biosciences, Pittsburgh, PA, United States
| | - Mark Urken
- THANC (Thyroid, Head and Neck Cancer) Foundation, 10 Union Square East, New York, NY 10003, United States; Department of Otolaryngology - Head and Neck Surgery, Icahn School of Medicine, Mount Sinai Health System, New York, NY, United State
| | - Margaret Brandwein-Weber
- Department of Pathology, Icahn School of Medicine, Mount Sinai Health System, New York, United States.
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Xing M, Fu QY, Lin SS, Fu X, Wang XX, Wang LC, Zhu X, Ouyang TL. [Analysis of fast-growing culturable bacteria and pathogenic bacteria in the surface water of the northeast coast of Hainan Island in China]. Zhonghua Yu Fang Yi Xue Za Zhi 2023; 57:1206-1216. [PMID: 37574314 DOI: 10.3760/cma.j.cn112150-20230221-00142] [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] [Grants] [Subscribe] [Scholar Register] [Indexed: 08/15/2023]
Abstract
Objective: To obtain the diversity and abundance of fast-growing bacteria in the surface water of the northeast coast of Hainan Island in China, different cultivation methods were employed. This study also aims to provide a reference for isolating bacterial samples from seawater sources and preventing marine-derived pathogens. Methods: Based on the principles of taxonomic design, surface seawater samples were collected from six locations along the northeast coast of Hainan Island in China in March, June, October, and December 2021. Then, bacterial enrichment was performed based on traditional cultivation methods for Salmonella, Vibrio, Burkholderia pseudomallei, Actinomycetes, and general marine bacteria. After that, bacterial species identification was conducted by 16S rDNA amplicon sequencing and metagenomic sequencing. Results: A total of 1 151 fast-growing cultivable bacteria belonging to 66 genera and 213 species were identified using five different culture protocols. In different cultivation protocols, Bacillus and Klebsiella demonstrated extensive discriminatory advantages and ranked among the top genera in terms of abundance. Protocol 1 had Escherichia, Klebsiella, and Citrobacter as dominant genera. Pathogenic bacteria detected by protocol 1 included Klebsiella pneumoniae and Escherichia coli, with 37 and 29 strains respectively, while Salmonella enterica was uniquely detected with seven isolates. Proteus, Enterococcus, and Providencia were the dominant genera in protocol 2, and Proteus mirabilis was the most abundant pathogenic bacteria detected with 66 isolates. Vibrio cholerae was uniquely detected with six isolates at a higher abundance. Klebsiella, Escherichia, and Acinetobacter were the dominant genera in protocol 3, and Klebsiella pneumoniae was the most abundant pathogenic bacteria detected with 53 isolates, while Acinetobacter nosocomialis was uniquely detected with seven isolates. Vibrio and Pseudoalteromonas were the dominant genera in protocol 4, and they showed advantages in isolating and cultivating Marine-derived Vibrio. Exiguobacterium, Staphylococcus, and Bacillus were the dominant genera in protocol 5. Bacillus cereus and Lactococcus lactis were the most abundant pathogenic bacteria detected with 20 and 15 isolates, respectively, while Lactococcus lactis was uniquely detected at higher abundance. Metagenomic sequencing showed that Klebsiella pneumoniae was significantly dominant with a gene abundance of 51.11%, followed by Alcanivorax sp. at 12.57%. Conclusion: The surface water of the northeast coast of Hainan Island in China exhibits a rich diversity of bacteria, with Klebsiella pneumoniae being highly abundant in the studied area. Different cultivation methods demonstrate distinct selective advantages in culturing bacterial genera and pathogens. Therefore, it is necessary to optimize cultivation conditions for specific marine bacteria.
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Affiliation(s)
- M Xing
- Department of Clinical Laboratory,Wenchang People's Hospital, Wenchang 571300, China
| | - Q Y Fu
- Department of Clinical Laboratory,Wenchang People's Hospital, Wenchang 571300, China
| | - S S Lin
- Department of Clinical Laboratory,Wenchang People's Hospital, Wenchang 571300, China
| | - X Fu
- Department of Clinical Laboratory,Wenchang People's Hospital, Wenchang 571300, China
| | - X X Wang
- Department of Clinical & Central Laboratory,Sanya People's Hospital, Sanya 572000, China
| | - L C Wang
- Department of Clinical & Central Laboratory,Sanya People's Hospital, Sanya 572000, China
| | - X Zhu
- Department of Clinical & Central Laboratory,Sanya People's Hospital, Sanya 572000, China
| | - T L Ouyang
- Department of Clinical & Central Laboratory,Sanya People's Hospital, Sanya 572000, China
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Beute JE, Greenberg LA, Wein LE, Kapustin DA, Fan J, Dowling EM, Samankan S, Matloob A, Xing M, Modica I, Chung D, Carroll W, Rosenthal EL, Khan MN, Chai RL, Brandwein-Weber MS, Urken ML. WPOI-5: Accurately Identified at Intraoperative Consultation and Predictive of Occult Cervical Metastases. Head Neck Pathol 2023; 17:479-486. [PMID: 36849672 PMCID: PMC10293149 DOI: 10.1007/s12105-023-01533-1] [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] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/26/2022] [Accepted: 01/12/2023] [Indexed: 03/01/2023]
Abstract
BACKGROUND Frozen section analysis of oral cancer specimens is ideal for assessing margin distances and depth of invasion (DOI); the latter impacts intraoperative decisions regarding elective neck dissection (END). Here, we show that intraoperative determination of worst pattern of invasion (WPOI), specifically WPOI-5, has a high level of accuracy. This relates to our demonstration herein that WPOI-5 predicts occult cervical metastases (OCM) for pT1 oral squamous carcinoma (OSC). METHODS The presence of OCM was correlated with WPOI in 228 patients with primary T1/T2/cN0 OSC undergoing resection and END. Concordance between intraoperative and final pathology WPOI determination was assessed on 51 cases of OSC. RESULTS WPOI-5 predicts OCM in pT1 patients, compared with WPOI-4/WPOI-3 (p < 0.0001). Most pT1 WPOI-5 tumors had DOI of 4-5 mm (24/59 or 40.7%). Only two pT1 WPOI-5 tumors had DOI < 4 mm (3.0 and 3.5 mm). If END were performed in this pT1 cohort for all WPOI-5 OSC patients regardless of DOI, OR all OSC patients with DOI ≥ 4 mm regardless of WPOI, then no OCM would be missed (p = 0.017, 100% sensitivity, 29% specificity, 77% positive predictive value, 23% negative predictive value). With respect to intraoperative WPOI-5 determination, the accuracy, sensitivity, and specificity was 92.16, 73.33, and 100.0%, respectively. CONCLUSIONS DOI ≥ 4 mm is the dominant predictor of OCM. For the rare WPOI-5 OSC with DOI < 4 mm, it is reasonable to suggest that surgeons perform END. WPOI-5 may be accurately determined intraoperatively. As microscopic instruction is needed to accurately assess WPOI-5, a teaching link is included in this manuscript.
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Affiliation(s)
- John E Beute
- Thyroid, Head and Neck Cancer (THANC) Foundation, 10 Union Square East, Suite 5B, New York, NY, 10003, USA
| | - Lily A Greenberg
- Thyroid, Head and Neck Cancer (THANC) Foundation, 10 Union Square East, Suite 5B, New York, NY, 10003, USA
| | - Lauren E Wein
- Thyroid, Head and Neck Cancer (THANC) Foundation, 10 Union Square East, Suite 5B, New York, NY, 10003, USA
| | - Danielle A Kapustin
- Thyroid, Head and Neck Cancer (THANC) Foundation, 10 Union Square East, Suite 5B, New York, NY, 10003, USA.
- Department of Otolaryngology-Head and Neck Surgery, Icahn School of Medicine at Mount Sinai, 10 Union Square East, Suite 5B, New York, NY, 10003, USA.
| | - Jun Fan
- Department of Pathology, Icahn School of Medicine at Mount Sinai, 1468 Madison Avenue, New York, NY, 10029, USA
| | - Eric M Dowling
- Department of Otolaryngology-Head and Neck Surgery, Icahn School of Medicine at Mount Sinai, 10 Union Square East, Suite 5B, New York, NY, 10003, USA
| | - Shabnam Samankan
- Department of Pathology, George Washington University, 2300 M Street NW, 7Th Floor, Washington, DC, 20037, USA
| | - Ammar Matloob
- Department of Pathology, Icahn School of Medicine at Mount Sinai, 1468 Madison Avenue, New York, NY, 10029, USA
| | - Monica Xing
- Thyroid, Head and Neck Cancer (THANC) Foundation, 10 Union Square East, Suite 5B, New York, NY, 10003, USA
| | - Ippolito Modica
- Department of Pathology, Icahn School of Medicine at Mount Sinai, 1468 Madison Avenue, New York, NY, 10029, USA
| | - Daniel Chung
- Department of Pathology, Icahn School of Medicine at Mount Sinai, 1468 Madison Avenue, New York, NY, 10029, USA
| | - William Carroll
- Department of Head and Neck Surgery, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Eben L Rosenthal
- Department of Head and Neck Surgery, University of Alabama at Birmingham, Birmingham, AL, USA
- Department of Otolaryngology-Head and Neck Surgery, Vanderbilt University Medical Center, 1215 21St Avenue South Suite 6310, Medical Center East - South Tower, Nashville, TN, 37232-8605, USA
| | - Mohemmed Nazir Khan
- Department of Otolaryngology-Head and Neck Surgery, Icahn School of Medicine at Mount Sinai, 10 Union Square East, Suite 5B, New York, NY, 10003, USA
| | - Raymond L Chai
- Department of Otolaryngology-Head and Neck Surgery, Icahn School of Medicine at Mount Sinai, 10 Union Square East, Suite 5B, New York, NY, 10003, USA
| | - Margaret S Brandwein-Weber
- Department of Pathology, Icahn School of Medicine at Mount Sinai, 1468 Madison Avenue, New York, NY, 10029, USA
| | - Mark L Urken
- Thyroid, Head and Neck Cancer (THANC) Foundation, 10 Union Square East, Suite 5B, New York, NY, 10003, USA
- Department of Otolaryngology-Head and Neck Surgery, Icahn School of Medicine at Mount Sinai, 10 Union Square East, Suite 5B, New York, NY, 10003, USA
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Villalobos A, Xing M, Dabbous H, Aslanyan L, Bode A, Lilly M, Bercu Z, Kokabi N. Abstract No. 8 Comparative Effectiveness and Safety of Percutaneous Cryoablation and Microwave Ablation for T1a Renal Cell Carcinomas. J Vasc Interv Radiol 2023. [DOI: 10.1016/j.jvir.2022.12.047] [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: 02/27/2023] Open
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Ryce A, Smith R, Hanna T, Newsome J, Duszak R, Ahmed O, Xing M, Kokabi N. Abstract No. 39 Contemporary Management and Outcomes of Blunt Splenic Trauma: An Analysis of the Trauma Quality Improvement Program Registry. J Vasc Interv Radiol 2023. [DOI: 10.1016/j.jvir.2022.12.081] [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: 02/27/2023] Open
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Samankan S, Militello L, Seo G, Everest S, O'Malley Q, Spaulding SL, Xing M, Matloob A, Beute J, Chai R, Doyle S, Urken ML, Brandwein-Weber M. Tall Cell Variant Papillary Thyroid Carcinoma Impacts Disease-Free Survival at the 10% Cut-point on Multivariate Analysis. Pathol Res Pract 2022; 236:154012. [DOI: 10.1016/j.prp.2022.154012] [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] [Received: 06/29/2022] [Accepted: 07/01/2022] [Indexed: 11/16/2022]
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Silberzweig AM, Xing M, Mundi N, Dowling E, Urken ML. An unusual case of retropharyngeal ectopic parathyroid adenoma. Ear Nose Throat J 2022:1455613221101934. [PMID: 35538678 DOI: 10.1177/01455613221101934] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Affiliation(s)
| | - Monica Xing
- Thyroid, Head and Neck Cancer (THANC) Foundation, New York, NY, USA
| | - Neil Mundi
- Thyroid, Head and Neck Cancer (THANC) Foundation, New York, NY, USA
- Department of Otolaryngology, Icahn School of Medicine at Mount Sinai Hospital, New York, NY, USA
| | - Eric Dowling
- Thyroid, Head and Neck Cancer (THANC) Foundation, New York, NY, USA
- Department of Otolaryngology, Icahn School of Medicine at Mount Sinai Hospital, New York, NY, USA
| | - Mark L Urken
- Thyroid, Head and Neck Cancer (THANC) Foundation, New York, NY, USA
- Department of Otolaryngology, Icahn School of Medicine at Mount Sinai Hospital, New York, NY, USA
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Xing M, Raheem OA. Commentary on "Penile augmentation with injectable hyaluronic acid gel: an alternative choice for small penis syndrome". Asian J Androl 2022; 24:677. [PMID: 35435335 PMCID: PMC9809485 DOI: 10.4103/aja202214] [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] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Affiliation(s)
- Monica Xing
- Department of Surgery, Section of Urology, University of Chicago, Chicago, IL 60637, USA
| | - Omer A Raheem
- Department of Surgery, Section of Urology, University of Chicago, Chicago, IL 60637, USA,
Correspondence: Dr. O Raheem ()
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Xing M, Mohapatra J, Elkins J, Guragain D, Mishra SR, Ping Liu J. Exchange bias and Verwey transition in Fe 5C 2/Fe 3O 4 core/shell nanoparticles. Nanoscale 2021; 13:15837-15843. [PMID: 34518851 DOI: 10.1039/d1nr04520b] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
This report presents new findings of exchange bias and related structural and magnetic properties in iron carbide/magnetite (Fe5C2/Fe3O4) core/shell nanoparticles. The exchange bias emerges from an energetic landscape, namely a first-order phase transition-the Verwey transition at 125 K, during which the Fe3O4 shell changes from the cubic to monoclinic structure. The phase transition leads to the exchange bias because it results in abrupt changes in magnetocrystalline anisotropy and exchange coupling. Another unique phenomenon identified in this composite system is enhanced magnetic coercivity due to the uniaxial anisotropy of the monoclinic phase. An analysis of the correlations between the observed phenomena is given based on the temperature dependence of the coercivity, the exchange bias field values, and the Verwey transition temperature.
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Affiliation(s)
- M Xing
- Department of Physics, The University of Texas at Arlington, Arlington, Texas 76019, USA.
| | - Jeotikanta Mohapatra
- Department of Physics, The University of Texas at Arlington, Arlington, Texas 76019, USA.
| | - J Elkins
- Department of Physics, The University of Texas at Arlington, Arlington, Texas 76019, USA.
| | - D Guragain
- Department of Physics and Materials Science, The University of Memphis, Memphis, TN 38152, USA
| | - S R Mishra
- Department of Physics and Materials Science, The University of Memphis, Memphis, TN 38152, USA
| | - J Ping Liu
- Department of Physics, The University of Texas at Arlington, Arlington, Texas 76019, USA.
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He LF, Hou XX, Chen T, Zhang L, Wen S, Miao GQ, Xing M, Hao Q, Zhu X. [Serological study of Lyme disease antibody in 2 311 patients with arthritis symptoms in Hainan Province]. Zhonghua Yu Fang Yi Xue Za Zhi 2021; 55:379-385. [PMID: 33730831 DOI: 10.3760/cma.j.cn112150-20200527-00787] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To understand the infectious status of Lyme disease among patients with arthritis symptoms in Hainan Province, and to provide a theoretical basis for prevention and control of Lyme disease. Methods: From 2013 to 2018, sampling surveys had been conducted in medical institutions in 8 cities in Hainan Province(Haikou, Sanya, Danzhou, Dongfang, Wenchang, Qionghai, Qiongzhong, Wuzhishan), 2 311 patients serum samples were collected with arthritis symptoms, and descriptive research were conducted base on the collected clinical data. The Indirect Fluorescent-Antibody Test (IFA) method was used for preliminary screening of Lyme disease antibody, the Western Blot (WB) method was used for IFA positive samples confirmation. Statistical analysis using χ2 test. Results: 2 311 serum samples were tested by IFA, and 166 were positive with the positive rate of 7.18%. Further confirmed by WB method, 62 samples were positive, the positive rate of Lyme disease antibody was 2.68%(62/2 311). The positive rate of Lyme disease antibody among patients with arthritis in different regions of Hainan was statistically significant (χ²=40.636,P<0.001), and the positive rate in Qiongzhong city was the highest (8.81%, 14/159). Danzhou's positive rate was the second highest, 5.62%(5/89). Dongfang city had the lowest positive rate (0.51%, 2/394). The positive rates of Lyme disease serum antibody in men and women were 2.79% (33/1 182) and 2.57% (29/1 129), respectively; the positive rates of antibodies between each age groups were in the range of 1.74% to 3.64%. The antibody positive rate of Lyme disease showed no significant difference between gender and age (χ²=0.110,P=0.740 ;χ²=1.938,P=0.747). Conclusion: Patients with arthritis symptoms caused by Borrelia burgdorferi infection were found in 8 cities in Hainan province, but the Lyme disease antibody positive rate was different among cities, with Qiongzhong County being the highest.
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Affiliation(s)
- L F He
- Department of Central Laboratory, People's Hospital of Sanya, Sanya 572000, China
| | - X X Hou
- State Key Laboratory for Infectious Disease Prevention and Control, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - T Chen
- Department of Central Laboratory, People's Hospital of Sanya, Sanya 572000, China
| | - L Zhang
- State Key Laboratory for Infectious Disease Prevention and Control, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - S Wen
- Department of Clinical Laboratory, People's Hospital of Qiongzhong County, Qiongzhong 572900, China
| | - G Q Miao
- State Key Laboratory for Infectious Disease Prevention and Control, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - M Xing
- Department of Clinical Laboratory, People's Hospital of Wenchang City, Wenchang 571300, China
| | - Q Hao
- State Key Laboratory for Infectious Disease Prevention and Control, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - X Zhu
- Department of Central Laboratory, People's Hospital of Sanya, Sanya 572000, China
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Mohapatra J, Elkins J, Xing M, Guragain D, Mishra SR, Liu JP. Magnetic-field-induced self-assembly of FeCo/CoFe 2O 4 core/shell nanoparticles with tunable collective magnetic properties. Nanoscale 2021; 13:4519-4529. [PMID: 33620040 DOI: 10.1039/d1nr00136a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Self-assembly of nanoparticles into ordered patterns is a novel approach to build up new consolidated materials with desired collective physical properties. Herein, nanoparticle assemblies of composition-modulated bimagnetic nanoparticles have been produced via slow evaporation of their colloidal suspension in the absence or presence of magnetic fields. The assemblies obtained in the presence of the magnetic fields exhibit oriented nanoparticle chains in face-centered cubic superlattice structures, compared with the hexagonal closed-packed superlattice obtained without the magnetic field. The oriented structure has an alignment of the easy magnetization axis along the chains. This alignment leads to enhanced intra-superlattice interactions. As a result, the field-induced assembly displays collective magnetic properties with significantly enhanced magnetic anisotropy, remanent magnetization and coercivity. It is also found that the bimagnetic FeCo/CoFe2O4 core/shell nanostructure enhances the intra-particle interaction and thus is beneficial for the growth of oriented assembly of nanoparticles. Furthermore, the collective magnetic behavior is evidenced by the observation of a superferromagnetic-like magnetization relaxation in the ac-susceptibility curves.
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Affiliation(s)
- J Mohapatra
- Department of Physics, The University of Texas at Arlington, Arlington, Texas 76019, USA.
| | - J Elkins
- Department of Physics, The University of Texas at Arlington, Arlington, Texas 76019, USA.
| | - M Xing
- Department of Physics, The University of Texas at Arlington, Arlington, Texas 76019, USA.
| | - D Guragain
- Department of Physics and Materials Science, The University of Memphis, Memphis, TN 38152, USA
| | - Sanjay R Mishra
- Department of Physics and Materials Science, The University of Memphis, Memphis, TN 38152, USA
| | - J Ping Liu
- Department of Physics, The University of Texas at Arlington, Arlington, Texas 76019, USA.
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Wang Y, Li Y, Li C, Jiang Y, Han X, Liu S, Xu X, Tang W, Ou Q, Bao H, Wu X, Shao Y, Xing M, Zhang Y. MA08.06 Stratifying PD-L1 Expression Level Based on Multimodal Genomic Features for the Prediction of Immunotherapy Benefit in NSCLC. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.01.193] [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: 10/21/2022]
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Shinn K, Hanna T, Fan S, Hawkins C, Risk B, Chahine A, Johnson J, Xing M, Duszak R, Newsome J, Kokabi N. 4:12 PM Abstract No. 164 The role of interventional radiology in the contemporary management of pediatric blunt splenic trauma: a National Trauma Data Bank analysis. J Vasc Interv Radiol 2020. [DOI: 10.1016/j.jvir.2019.12.199] [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: 11/26/2022] Open
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Horný M, Cronan J, Duszak R, Spies J, Newsome J, Carlos R, Hughes D, Xing M, Kokabi N, Cronan J. 03:18 PM Abstract No. 260 Comparison of direct procedural and episode of care cost for invasive therapies in management of uterine fibroid embolization and associated patient-incurred financial burden. J Vasc Interv Radiol 2019. [DOI: 10.1016/j.jvir.2018.12.322] [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: 11/28/2022] Open
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Cronan J, Horný M, Spies J, Newsome J, Carlos R, Hughes D, Duszak R, Xing M, Kokabi N, Cronan J. 03:27 PM Abstract No. 261 National variation in management of symptomatic uterine fibroids in contemporary clinical practice. J Vasc Interv Radiol 2019. [DOI: 10.1016/j.jvir.2018.12.323] [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: 11/25/2022] Open
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Affiliation(s)
- Y Liu
- Department of Urology, Qilu Hospital of Shandong University, Jinan, China
- Department of Reproductive Medicine, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - X Guo
- Department of Reproductive Medicine, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - M Xing
- Department of Urology, Qilu Hospital of Shandong University, Jinan, China
- Department of Clinical Laboratory, Yuhuangding Hospital of Yantai, Yantai, China
| | - K Zhao
- Department of Reproductive Medicine, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - L Luo
- Department of Urology, The Affiliated Hospital of Qingdao University, Qingdao, China
| | - J Du
- Department of Urology, Qilu Hospital of Shandong University, Jinan, China
- Department of Clinical Laboratory, Yuhuangding Hospital of Yantai, Yantai, China
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Zhou D, Wang Z, Li M, Xing M, Xian T, Tu K. Carvacrol and eugenol effectively inhibitRhizopus stoloniferand control postharvest soft rot decay in peaches. J Appl Microbiol 2017; 124:166-178. [DOI: 10.1111/jam.13612] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2017] [Revised: 09/16/2017] [Accepted: 10/09/2017] [Indexed: 11/28/2022]
Affiliation(s)
- D. Zhou
- College of Food Science and Technology; Nanjing Agricultural University; Nanjing China
| | - Z. Wang
- College of Food Science and Technology; Nanjing Agricultural University; Nanjing China
| | - M. Li
- College of Food Science and Technology; Nanjing Agricultural University; Nanjing China
| | - M. Xing
- College of Food Science and Technology; Nanjing Agricultural University; Nanjing China
| | - T. Xian
- College of Food Science and Technology; Nanjing Agricultural University; Nanjing China
| | - K. Tu
- College of Food Science and Technology; Nanjing Agricultural University; Nanjing China
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Magnetta M, Ghodadra A, Close O, Xing M, Kim H. IVC filter implantation time correlates with risk of thromboembolic complication. J Vasc Interv Radiol 2017. [DOI: 10.1016/j.jvir.2016.12.804] [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: 10/20/2022] Open
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19
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Mills A, Thayer D, Tao Y, Xing M, Saad N, Martin R, Akinwande O. Thermal ablation vs. surgical resection for AJCC I and II hepatocellular carcinoma: a propensity matched population study using the Surveillance, Epidemiology, and End Results (SEER) database. J Vasc Interv Radiol 2017. [DOI: 10.1016/j.jvir.2016.12.826] [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: 11/28/2022] Open
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Nie XL, Jia LL, Peng XX, Li HR, Xing M, Lin N, Li MX, Wang XL. [Cross-sectional study of family drug stockpile and children medication in China]. Zhonghua Liu Xing Bing Xue Za Zhi 2016; 37:921-924. [PMID: 27453097 DOI: 10.3760/cma.j.issn.0254-6450.2016.07.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
OBJECTIVE To investigate the current situation of family medicine stockpile and children medication in China, analyze the existing problems and provide the rationalized suggestions. METHODS The questionnaire was designed and convenient sampling survey was performed in 20 children hospitals in China. Descriptive analysis was conducted on the survey results. RESULTS A total of 13 940 completed questionnaires were returned, 98.33% of the families had medicine stockpile, the top three types of the medicine for children were cold medicine(73.95%), oral paregoric/febrifuge(48.01%)and external used drugs for skin disease(wound)(41.10%). The medicine was bought according to physician's prescription and guide(71.18%). Drug poisoning occurred in children of 238 families(1.71%), overdose use was the first cause(44.96%). 22.33% of the parents didn't read the specification carefully before medicine use. The non-appropriate medication for children were mainly the use of adult medicine(32.70%), untimely medication(30.90%), non-rational or unneeded use of febrifuge(26.35%). CONCLUSIONS In China, the families mainly store common medicine for their children. The parents bought medicine mainly according to physician' s prescription and paid attention to the safety and efficiency of the medicine, but non-appropriate use of medicine was still common. It is necessary to improve the rational use of medicine for children through expert counsel and guidance.
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Affiliation(s)
- X L Nie
- Center for Clinical Epidemiology and Evidence-based Medicine, Beijing Children's Hospital, Capital Medical University, Beijing 100045, China
| | - L L Jia
- Department of Pharmacy, Beijing Children's Hospital, Capital Medical University, Beijing 100045, China
| | - X X Peng
- Center for Clinical Epidemiology and Evidence-based Medicine, Beijing Children's Hospital, Capital Medical University, Beijing 100045, China
| | - H R Li
- Department of Pharmacy, Beijing Children's Hospital, Capital Medical University, Beijing 100045, China
| | - M Xing
- Department of Pharmacy, Beijing Children's Hospital, Capital Medical University, Beijing 100045, China
| | - N Lin
- Department of Pharmacy, Beijing Children's Hospital, Capital Medical University, Beijing 100045, China
| | - M X Li
- China Nonprescription Medicines Association, Beijing 100098, China
| | - X L Wang
- Department of Pharmacy, Beijing Children's Hospital, Capital Medical University, Beijing 100045, China
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Ramchand T, Ramchand T, Patel S, Kim H, Xing M. Do patients understand the procedures we perform? Readability analysis of patient education materials related to percutaneous endoscopic gastrostomy tubes. J Vasc Interv Radiol 2016. [DOI: 10.1016/j.jvir.2015.12.731] [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: 10/22/2022] Open
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Ludwig J, Sun L, Yongkang G, Zeng D, Xing M, Kim H. Anticancer mechanisms of SW43-DOX, a potential new drug DEB-TACE treatment—an in vitro evaluation. J Vasc Interv Radiol 2016. [DOI: 10.1016/j.jvir.2015.12.078] [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: 10/22/2022] Open
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23
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Kokabi N, Camacho J, Schuster D, Xing M, Kim H. Estimating differences in Y90 dosimetry in patients with intrahepatic cholangiocarcinoma treated with resin-based and glass-based microspheres by a simple semi-quantitative method. J Vasc Interv Radiol 2016. [DOI: 10.1016/j.jvir.2015.12.402] [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: 10/22/2022] Open
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Zhang N, Xing M, Wang Y, Tao H, Cheng Y. Repetitive transcranial magnetic stimulation enhances spatial learning and synaptic plasticity via the VEGF and BDNF-NMDAR pathways in a rat model of vascular dementia. Neuroscience 2015; 311:284-91. [PMID: 26518460 DOI: 10.1016/j.neuroscience.2015.10.038] [Citation(s) in RCA: 64] [Impact Index Per Article: 7.1] [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: 07/17/2015] [Revised: 09/22/2015] [Accepted: 10/21/2015] [Indexed: 12/13/2022]
Abstract
This study aimed to evaluate the effects of repetitive transcranial magnetic stimulation (rTMS) on learning and memory in a rat model of vascular dementia (VaD) and to analyze the associated mechanisms. Bilateral carotid artery occlusion (2-VO) was used to establish a rat model of VaD. High-frequency (5Hz) rTMS was performed on rats for four weeks. Spatial learning and memory abilities were evaluated using the Morris water maze (MWM), and synaptic plasticity in the hippocampus was assessed via long-term potentiation (LTP). Hippocampal expression of vascular endothelial growth factor (VEGF), brain-derived neurotrophic factor (BDNF) and three subunits of the N-methyl-D-aspartic acid receptor (NMDAR), NR1, NR2A and NR2B, was analyzed by Western blotting. Compared with the VaD group, escape latency was decreased (P<0.05) and the time spent in the target quadrant and the percentage of swimming distance within that quadrant were increased (P<0.05) in the rTMS group. LTP at hippocampal CA3-CA1 synapses was enhanced by rTMS (P<0.05). VEGF expression was up-regulated following 2-VO and was further increased by rTMS (P<0.05). BDNF, NR1 and NR2B expression was decreased in the VaD group and increased by rTMS (P<0.05). There were no significant differences in NR2A expression among the three groups. These results suggest that rTMS improved learning and memory in the VaD model rats via the up-regulation of VEGF, BDNF and NMDARs. In addition, NR2B may be more important than NR2A for LTP induction in the hippocampus during rTMS treatment of VaD.
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Affiliation(s)
- N Zhang
- Department of Neurology, Key Laboratory of Post-Traumatic Neuro-Repair and Regeneration in the Central Nervous System, Ministry of Education, Tianjin Key Laboratory of Injuries, Variations and Regeneration of the Nervous System, Tianjin Neurological Institute, Tianjin Medical University General Hospital, Tianjin, China
| | - M Xing
- Department of Neurology, Key Laboratory of Post-Traumatic Neuro-Repair and Regeneration in the Central Nervous System, Ministry of Education, Tianjin Key Laboratory of Injuries, Variations and Regeneration of the Nervous System, Tianjin Neurological Institute, Tianjin Medical University General Hospital, Tianjin, China
| | - Y Wang
- Department of Neurology, Tianjin Haihe Hospital, Tianjin, China
| | - H Tao
- Department of Neurology, Key Laboratory of Post-Traumatic Neuro-Repair and Regeneration in the Central Nervous System, Ministry of Education, Tianjin Key Laboratory of Injuries, Variations and Regeneration of the Nervous System, Tianjin Neurological Institute, Tianjin Medical University General Hospital, Tianjin, China
| | - Y Cheng
- Department of Neurology, Key Laboratory of Post-Traumatic Neuro-Repair and Regeneration in the Central Nervous System, Ministry of Education, Tianjin Key Laboratory of Injuries, Variations and Regeneration of the Nervous System, Tianjin Neurological Institute, Tianjin Medical University General Hospital, Tianjin, China.
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Sui X, Feng FJ, Zhao D, Xing M, Sun XY, Han SJ, Li MH. Mating system patterns of natural populations of Pinus koraiensis along its post-glacial colonization route in northeastern China. Genet Mol Res 2015; 14:4113-24. [PMID: 25966183 DOI: 10.4238/2015.april.27.26] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
To understand the genetic mechanisms underlying the endangerment of Pinus koraiensis, we studied the mating system of 49 families of this species in 3 natural populations along its post-glacial colonization route across ~1500 km in northeastern China using the chloroplast simple sequence repeat technique. We analyzed 11 polymorphic loci with clear and repeating bands, and we calculated the multi-locus outcrossing rate (tm), single-locus outcrossing rate, inbreeding index, and fixation index (F). Intra-population variation was not observed, but a large inter-population variation was observed in the outcrossing rate, and the tm increased from 0.767 (the south population) to 0.962 (the north population) along the post-glacial colonization route. The tm values within a population did not change with time over 2 consecutive years. The F values for the 3 populations were <0, which indicates an excess of heterozygotes. The mean effective number of alleles, Shannon diversity index, and Nei's genetic diversity index did not show a south-north pattern. The north population had the highest outcrossing rate but the lowest genetic diversity. The average genetic differentiation of P. koraiensis populations was 0.1251, which was within the average range of woody plants with outcrossing and wind pollination. This study suggests that the current endangerment of P. koraiensis is not related to its genetic structure; perhaps it is mainly caused by man-made and natural disturbances such as deforestation and fire. Therefore, reducing disturbances and enhancing habitats, rather than the genetic aspects, play more important roles in the long-term protection of P. koraiensis.
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Affiliation(s)
- X Sui
- Northeast Forestry University, Harbin, China
| | - F J Feng
- Northeast Forestry University, Harbin, China
| | - D Zhao
- Northeast Forestry University, Harbin, China
| | - M Xing
- Northeast Forestry University, Harbin, China
| | - X Y Sun
- Northeast Forestry University, Harbin, China
| | - S J Han
- State Key Laboratory of Forest and Soil Ecology, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, China
| | - M H Li
- Swiss Federal Research Institute WSL, Birmensdorf, Switzerland
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Lahti S, Xing M, Kim H. KRAS status as an independent prognostic factor of survival for unresectable colorectal cancer after Yttrium-90 radioembolization therapy. J Vasc Interv Radiol 2015. [DOI: 10.1016/j.jvir.2014.12.244] [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: 11/29/2022] Open
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Lahti S, Zeng D, Jia J, Xing M, Kim H. Sorafenib loaded drug-eluting beads: loading and eluting kinetics and in vitro viability study. J Vasc Interv Radiol 2015. [DOI: 10.1016/j.jvir.2014.12.223] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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Xing M, Kim H. Bridging locoregional therapies and longer wait times prolong survival in hepatocellular carcinoma patients undergoing orthotopic liver transplantation: UNOS population study. J Vasc Interv Radiol 2015. [DOI: 10.1016/j.jvir.2014.12.264] [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: 11/25/2022] Open
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Qu C, Xing M, McCluskey K, Santos E, Kim H. The impact of PleurX catheters for ascites and peritoneal carcinomatosis on patient rehospitalizations. J Vasc Interv Radiol 2015. [DOI: 10.1016/j.jvir.2014.12.108] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
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Ching K, Santos E, McCluskey K, Orons P, Friend C, Xing M, Zeh H. Covered stents and coil embolization for treatment of postpancreatectomy hemorrhage: assessment of effectiveness and safety. J Vasc Interv Radiol 2015. [DOI: 10.1016/j.jvir.2014.12.077] [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: 10/24/2022] Open
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Lahti S, Zeng D, Jia J, Xing M, Kim H. Sunitinib loaded drug-eluting beads: loading and eluting kinetics and in vitro viability study. J Vasc Interv Radiol 2015. [DOI: 10.1016/j.jvir.2014.12.225] [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] [Subscribe] [Scholar Register] [Indexed: 10/24/2022] Open
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Kokabi N, Xing M, Duszak R, Applegate K, Camacho J, Howard D, Kim H. Disparities in the contemporary clinical management of stage Ia renal cell carcinoma: a Surveillance, Epidemiology, and End Results (SEER) study. J Vasc Interv Radiol 2015. [DOI: 10.1016/j.jvir.2014.12.332] [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: 11/30/2022] Open
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Abstract
We report a dopamine-based crosslinker-conjugated gelatin/polycaprolactone nanofibrous sheet. The nanosheet was then employed to treat stomach incisions without sutures during surgery.
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Affiliation(s)
- J. Jiang
- Department of Mechanical Engineering
- University of Manitoba
- Winnipeg MB
- Canada
- Department of Biochemistry and Medical Genetics
| | - W. Wan
- Department of Mechanical Engineering
- University of Manitoba
- Winnipeg MB
- Canada
| | - L. Ge
- Department of Mechanical Engineering
- University of Manitoba
- Winnipeg MB
- Canada
| | - S. Bu
- Jiangsu Province Hospital Affiliated with Nanjing Medical University
- Nanjing 210029
- China
| | - W. Zhong
- Department of Biosystem Engineering
- University of Manitoba
- Canada
| | - M. Xing
- Department of Mechanical Engineering
- University of Manitoba
- Winnipeg MB
- Canada
- Department of Biochemistry and Medical Genetics
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Kokabi N, Camacho J, Xing M, El-Rayes B, Kauh J, Kim H. Prospective open-label single center study of safety and efficacy of glass-based Y90 radioembolization for infiltrative HCC with PVT. J Vasc Interv Radiol 2014. [DOI: 10.1016/j.jvir.2013.12.254] [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: 11/16/2022] Open
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Xing M, Sakaria S, Dhanasekaran R, Kokabi N, Camacho J, Parekh S, Spivey J, Kim H. Bridging locoregional therapy enhances long-term survivals in hepatocellular carcinoma patients listed for liver transplant within the milan criteria: a 15-year experience. J Vasc Interv Radiol 2014. [DOI: 10.1016/j.jvir.2013.12.390] [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: 11/25/2022] Open
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Camacho J, Kokabi N, Xing M, Master V, Pattaras J, Mittal P, Kim H. R.E.N.A.L nephrometry score predicts early tumor recurrence and complications after percutaneous ablation: a 5-year experience. J Vasc Interv Radiol 2014. [DOI: 10.1016/j.jvir.2013.12.326] [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: 11/26/2022] Open
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Kokabi N, Camacho J, Xing M, Kitajima H, Qiu D, Mittal P, Kim H. MRapparent diffusion coefficient quantification as an imaging biomarker for anatomic response of unresectable hepatocellular carcinoma to doxorubicin drug-eluting beads chemoembolization. J Vasc Interv Radiol 2014. [DOI: 10.1016/j.jvir.2013.12.177] [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] Open
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Kokabi N, Camacho J, Xing M, Schuster D, Galt J, Kim H. Resin-based Yttrium-90 estimation as a prognostic factor for survival in patients with chemorefractory intrahepatic cholangiocarcinomas: a proof of concept study. J Vasc Interv Radiol 2014. [DOI: 10.1016/j.jvir.2013.12.295] [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: 11/29/2022] Open
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Xing M, Dhanasekaran R, Kokabi N, Camacho J, Parekh S, Knechtle S, Adsay V, Spivey J, Kim H. Clinicopathologic factors predicting hepatocellular carcinoma recurrence in patients receiving bridging locoregional therapy for orthotopic liver transplantation: a 15-year experience. J Vasc Interv Radiol 2014. [DOI: 10.1016/j.jvir.2013.12.585] [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: 10/25/2022] Open
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Parker EI, Xing M, Moreno-De-Luca A, Harmouche E, Terk MR. Radiological and clinical characterization of the lysosomal storage disorders: non-lipid disorders. Br J Radiol 2014; 87:20130467. [PMID: 24234586 PMCID: PMC3898971 DOI: 10.1259/bjr.20130467] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2013] [Revised: 10/29/2013] [Accepted: 11/08/2013] [Indexed: 01/05/2023] Open
Abstract
Lysosomal storage diseases (LSDs) are a large group of genetic metabolic disorders that result in the accumulation of abnormal material, such as mucopolysaccharides, glycoproteins, amino acids and lipids, within cells. Since many LSDs manifest during infancy or early childhood, with potentially devastating consequences if left untreated, timely identification is imperative to prevent irreversible damage and early death. In this review, the key imaging features of the non-lipid or extralipid LSDs are examined and correlated with salient clinical manifestations and genetic information. Disorders are stratified based on the type of excess material causing tissue or organ dysfunction, with descriptions of the mucopolysaccharidoses, mucolipidoses, alpha-mannosidosis, glycogen storage disorder II and cystinosis. In addition, similarities and differences in radiological findings between each of these LSDs are highlighted to facilitate further recognition. Given the rare and extensive nature of the LSDs, mastery of their multiple clinical and radiological traits may seem challenging. However, an understanding of the distinguishing imaging characteristics of LSDs and their clinical correlates may allow radiologists to play a key role in the early diagnosis of these progressive and potentially fatal disorders.
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Xing M, Shen F, Liu L, Chen Z, Guo N, Wang X, Wang W, Zhang K, Wu X, Wang X, Li Y, Sun S, Yu L. Antimicrobial efficacy of the alkaloid harmaline alone and in combination with chlorhexidine digluconate against clinical isolates of Staphylococcus aureus grown in planktonic and biofilm cultures. Lett Appl Microbiol 2012; 54:475-82. [DOI: 10.1111/j.1472-765x.2012.03233.x] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [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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Abstract
We present a simplified paraffin embedding method suitable for unsuberized or unlignified small botanical samples (diameter < 0.3 cm). Only 2 h are required to yield plant tissues embedded in paraffin for anatomical observation and molecular analysis. Our method achieved morphological preservation of cell structures and conservation of nucleic acids that were equivalent to the traditional protocol. Fourier transform infrared spectrometry showed that the degree of degradation of the cytoplasmic components (e.g., protein) resulting from our simplified protocol was similar to that of the traditional protocol. The DNA samples embedded using the simplified method was extractable and could be used for PCR analysis. The DNA quality was equivalent to that embedded using the traditional method.
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Affiliation(s)
- M Xing
- College of Life Science, Jilin University, Changchun, China
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Wu HQ, Liu ZG, Gao B, Li M, Ran PX, Xing M. Localization of Per a 3 allergen in the gut and faecal pellets of the American cockroach (Periplaneta americana). Int J Immunogenet 2007; 34:347-51. [PMID: 17845305 DOI: 10.1111/j.1744-313x.2007.00697.x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
Cockroach-derived materials are known to be a major source of potent aeroallergens, causing allergic respiratory diseases such as asthma and allergic rhinitis. The aim of this study was to determine the localization of the major allergen, Per a 3 (Cr-PI), within the American cockroach (Periplaneta americana), which might reveal the relative importance of excreted materials and nonexcreted cockroach components as allergen sources. American cockroaches (P. americana) and their faecal pellets were embedded in paraffin, and serial sections were cut and collected on glass slides. After being stained with mouse polyclonal antiserum against Per a 3, the sections were incubated sequentially with biotin-labelled sheep antimouse immunoglobulin G (IgG) and a preformed fluorescent isothiocyanate (FITC)-avidin complex. Finally, the sections were mounted and examined under a fluorescent microscope. Examination of Per a 3 immunoreactivity on the sections of the American cockroaches (P. americana) revealed that the midgut mucosa, gut contents and faecal pellets were all strongly labelled. Per a 3 immunoreactive products were not detected in any other internal organs of the American cockroaches. These results suggest that Per a 3 allergen might be synthesized in and secreted from the epithelia of the midgut mucosa and excreted from the body in the faecal pellets.
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Affiliation(s)
- H-Q Wu
- Allergy and Immunology Institute, Shenzhen University, Shenzhen, China
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Hoque MO, Rosenbaum E, Westra WH, Xing M, Ladenson P, Zeiger MA, Sidransky D, Umbricht CB. Quantitative assessment of promoter methylation profiles in thyroid neoplasms. J Clin Endocrinol Metab 2005; 90:4011-8. [PMID: 15840741 DOI: 10.1210/jc.2005-0313] [Citation(s) in RCA: 89] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
CONTEXT Cancer-specific molecular markers are needed to supplement the cytopathological assessment of thyroid tumors, because a majority of patients with cytologically indeterminate nodules currently undergo thyroidectomy without a definitive diagnosis. OBJECTIVE The aim of this study was the quantitative assessment of promoter hypermethylation and its relation to the BRAF mutation in thyroid tumors. DESIGN Quantitative hypermethylation of Rassf1A, TSHR, RAR-beta2, DAPK, S100, p16, CDH1, CALCA, TIMP3, TGF-beta, and GSTpi was tested on a cohort of 82 benign and malignant thyroid tumors and five thyroid cancer cell lines. SETTING The study was conducted at a tertiary research hospital. PATIENTS Patients underwent surgical resection for a thyroid tumor from 2000 to 2003 at our institution. INTERVENTIONS There were no interventions. MAIN OUTCOME MEASURE Final surgical pathology diagnosis was the main outcome measure. RESULTS Thyroid tumors showed hypermethylation for the following markers: Rassf1A, TSHR, RAR-beta2, DAPK, CDH1, TIMP3, and TGF-beta. A trend toward multiple hypermethylation was evident in cancer tissues, with hypermethylation of two or more markers detectable in 25% of hyperplasias, 38% of adenomas, 48% of thyroid cancers, and 100% of cell lines. A rank correlation analysis of marker hypermethylation suggests that a subset of these markers is epigenetically modified in concert, which may reflect an organ-specific regulation process. Furthermore, a positive correlation was found between the BRAF mutation and RAR-beta2, and a negative correlation was found between the BRAF mutation and Rassf1A. CONCLUSIONS Methylation-induced gene silencing appears to affect multiple genes in thyroid tissue and increases with cancer progression. Additional markers with better discriminatory power between benign and malignant samples are needed for the diagnostic assessment of cytologically indeterminate thyroid nodules.
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Affiliation(s)
- M O Hoque
- Department of Otolaryngology, Head and Neck Surgery, The Johns Hopkins Medical Institutions, 720 Rutland Avenue, Ross 743, Baltimore, Maryland 21205, USA
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Abstract
Genetic alteration is the driving force for thyroid tumorigenesis and progression, based upon which novel approaches to the management of thyroid cancer can be developed. A recent important genetic finding in thyroid cancer is the oncogenic T1799A transversion mutation of BRAF (the gene for the B-type Raf kinase, BRAF). Since the initial report of this mutation in thyroid cancer 2 years ago, rapid advancements have been made. BRAF mutation is the most common genetic alteration in thyroid cancer, occurring in about 45% of sporadic papillary thyroid cancers (PTCs), particularly in the relatively aggressive subtypes, such as the tall-cell PTC. This mutation is mutually exclusive with other common genetic alterations, supporting its independent oncogenic role, as demonstrated by transgenic mouse studies that showed BRAF mutation-initiated development of PTC and its transition to anaplastic thyroid cancer. BRAF mutation is mutually exclusive with RET/PTC rearrangement, and also displays a reciprocal age association with this common genetic alteration in thyroid cancer. The T1799A BRAF mutation occurs exclusively in PTC and PTC-derived anaplastic thyroid cancer and is a specific diagnostic marker for this cancer when identified in cytological and histological specimens. This mutation is associated with a poorer clinicopathological outcome and is a novel independent molecular prognostic marker in the risk evaluation of thyroid cancer. Moreover, preclinical and clinical evaluations of the therapeutic value of novel specific mitogen-activated protein kinase pathway inhibitors in thyroid cancer are anticipated. This newly discovered BRAF mutation may prove to have an important impact on thyroid cancer in the clinic.
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Affiliation(s)
- M Xing
- Division of Endocrinology and Metabolism, Department of Medicine, Johns Hopkins University School of Medicine, 1830 E. Monument St/Suite 333 Baltimore, MD 21287, USA.
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Xing M, Vasko V, Tallini G, Larin A, Wu G, Udelsman R, Ringel MD, Ladenson PW, Sidransky D. BRAF T1796A transversion mutation in various thyroid neoplasms. J Clin Endocrinol Metab 2004; 89:1365-8. [PMID: 15001635 DOI: 10.1210/jc.2003-031488] [Citation(s) in RCA: 91] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
A high prevalence of activating mutation of the B type Raf kinase (BRAF) gene was recently reported in papillary thyroid cancer (PTC). However, the frequency of this mutation in several other types of thyroid neoplasms was not thoroughly investigated. In the present study, in addition to PTC, we evaluated various thyroid tumor types for the most common BRAF T1796A mutation by direct genomic DNA sequencing. We found a high and similar frequency (45%) of the BRAF T1796A mutation in two geographically distinct PTC patient populations: one composed of sporadic cases from North America, and the other from Kiev, Ukraine, that included individuals who were exposed to the Chernobyl nuclear accident. In contrast, we found BRAF mutation in only 20% of anaplastic thyroid cancers and no mutation in medullary thyroid cancers and benign thyroid hyperplasia. We also confirmed previous reports that the BRAF T1796A mutation did not occur in benign thyroid adenomas and follicular thyroid cancers. Specific analysis of the Ukraine patients with confirmed history of radiation exposure failed to show a higher incidence of BRAF mutation. Our results suggest that frequent occurrence of BRAF mutation is inherently associated with PTC, irrespective of geographic origin, and is apparently not a radiation-susceptible mutation. The lack or low prevalence of BRAF mutation in other thyroid neoplasms is consistent with the notion that other previously defined genetic alterations on the same signaling pathway are sufficient to cause tumorigenesis in most thyroid neoplasms.
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Affiliation(s)
- M Xing
- Division of Endocrinology and Metabolism, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205, USA.
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Li JM, Li XW, Zhang DY, Xing M. [Somatic embryogenesis and plant regeneration in vitro from young shoots of Aralia elate (Miq.) Seem]. Shi Yan Sheng Wu Xue Bao 2001; 34:137-41. [PMID: 12549107] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/28/2023]
Abstract
Explants excised from the young shoots of Aralia elata (Miq.) Seem. were cultured on MS media. Calli were induced from the explants on MS medium supplemented with 0.5 mg/L 2, 4-D, 0.5 mg/L BA and 0.5 mg/L NAA. Then these calli were transferred onto the MS medium containing 2.0 mg/L 2,4-D + 0.5 mg/L BA + 0.5 mg/L NAA and 0.2% activated charcoal. Under these conditions the somatic embryoids were observed and regenerated plants were obtained from somatic embryogenesis. Then, a experimental system with stability and high regenerating efficiency has been set up for the propagation of the young plants, the cell breeding technology and the control of somatic embryogenesis of Aralia elata (Miq.).
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Affiliation(s)
- J M Li
- Institute of Genetics and Cytology, Northeast Normal University, Changchun 130024. Dept of Biology, Qinghai Normal University, Xining 810008
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