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Robbins RN, Kluisza L, Nguyen N, Dolezal C, Leu CS, Wiznia A, Abrams EJ, Anderson PL, Castillo-Mancilla JR, Mellins CA. Measuring ART Adherence Among Young Adults with Perinatally Acquired HIV: Comparison Between Self-report, Telephone-Based Pill Count, and Objective Pharmacologic Measures. AIDS Behav 2023; 27:3927-3931. [PMID: 37326692 PMCID: PMC10919291 DOI: 10.1007/s10461-023-04107-y] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/02/2023] [Indexed: 06/17/2023]
Abstract
Tenofovir diphosphate (TVF-DP) can be quantified in red blood cells (RBCs) and dried blood spots (DBS) and can objectively measure ART adherence and predict viral suppression. Data on the association of TFV-DP with viral load are very limited in adolescents and young adults (AYA) living with perinatally-acquired HIV (PHIV), as are data comparing TFV-DP to other measures of ART adherence, such as self-report and unannounced telephone pill count. Viral load and ART adherence (self-report, TFV-DP and unannounced telephone pill count) were assessed and compared among 61 AYAPHIV recruited from an ongoing longitudinal study (CASAH) in New York City.
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Affiliation(s)
- R N Robbins
- HIV Center for Clinical and Behavioral Studies, Columbia University and New York State Psychiatric Institute, New York, USA.
| | - L Kluisza
- HIV Center for Clinical and Behavioral Studies, Columbia University and New York State Psychiatric Institute, New York, USA
| | - N Nguyen
- Aaron Diamond AIDS Research Center, Columbia University Irving Medical Center, New York, USA
| | - C Dolezal
- HIV Center for Clinical and Behavioral Studies, Columbia University and New York State Psychiatric Institute, New York, USA
| | - C S Leu
- HIV Center for Clinical and Behavioral Studies, Columbia University and New York State Psychiatric Institute, New York, USA
| | - A Wiznia
- Department of Pediatrics, Albert Einstein College of Medicine and Jacobi Medical Center, Bronx, NY, USA
| | - E J Abrams
- Mailman School of Public Health, ICAP at Columbia University, New York, USA
| | - P L Anderson
- University of Colorado Anschutz Medical Campus School of Medicine, Aurora, USA
| | | | - C A Mellins
- HIV Center for Clinical and Behavioral Studies, Columbia University and New York State Psychiatric Institute, New York, USA
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Tay-Lasso E, Grigorian A, Lekawa M, Dolich M, Schubl S, Barrios C, Nguyen N, Nahmias J. Obesity Does Not Increase Risk for Mortality in Severe Sepsis Trauma Patients. Am Surg 2023; 89:4734-4739. [PMID: 35236162 DOI: 10.1177/00031348221078986] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [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] [Indexed: 11/15/2022]
Abstract
INTRODUCTION The prevalence of obesity in the United States is up to 40% in adults. Obese patients with severe sepsis have a lower mortality rate compared with normal body mass index (BMI) patients. We hypothesized that trauma patients with severe sepsis and obese BMI will have a decreased mortality risk in comparison with normal BMI patients. METHODS The Trauma Quality Improvement Program (2017) was queried for adult trauma patients with documented BMI and severe sepsis. Patients were grouped based on BMI: non-obese trauma patients (nOTP) BMI <30 kg/m2 and obese trauma patients (OTP) ≥30 kg/m2. A multivariable logistic regression model was used for analysis of mortality. RESULTS From 1246 trauma patients with severe sepsis, 566 (42.4%) were nOTP and 680 (57.6%) were OTP. OTP had increased length of stay (LOS) (19 vs 21 days, P < .001), intensive care unit (ICU) LOS (13 vs 18 days, P < .001) and ventilator days (10 vs 11 days, P < .001). After adjusting for covariates, when compared to normal BMI patients, patients who were overweight (OR 1.11 CI .875-1.41 P = .390), obese (OR .797 CI .59-1.06 P = .126), severely obese (OR .926 CI .63-1.36 P = .696) and morbidly obese (OR 1.448 CI 1.01-2.07 P = .04) all had a similar associated risk for mortality compared to patients with normal BMI. CONCLUSION In adult trauma patients with severe sepsis, this national analysis demonstrated OTP had increased LOS, ICU LOS, and ventilator days compared to nOTP. However, patients with increasing degrees of obesity had similar associated risk of mortality compared to trauma patients with severe sepsis and a normal BMI.
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Affiliation(s)
- E Tay-Lasso
- Department of Surgery, University of California, Irvine, Division of Trauma, Burns and Surgical Critical Care, Orange, CA, USA
| | - A Grigorian
- Department of Surgery, University of California, Irvine, Division of Trauma, Burns and Surgical Critical Care, Orange, CA, USA
| | - M Lekawa
- Department of Surgery, University of California, Irvine, Division of Trauma, Burns and Surgical Critical Care, Orange, CA, USA
| | - M Dolich
- Department of Surgery, University of California, Irvine, Division of Trauma, Burns and Surgical Critical Care, Orange, CA, USA
| | - S Schubl
- Department of Surgery, University of California, Irvine, Division of Trauma, Burns and Surgical Critical Care, Orange, CA, USA
| | - C Barrios
- Department of Surgery, University of California, Irvine, Division of Trauma, Burns and Surgical Critical Care, Orange, CA, USA
| | - N Nguyen
- Department of Surgery, University of California, Irvine, Division of Gastrointestinal Surgery, Orange, CA, USA
| | - J Nahmias
- Department of Surgery, University of California, Irvine, Division of Trauma, Burns and Surgical Critical Care, Orange, CA, USA
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Lyons J, Harada GK, Yeakel J, Cho M, Dayyani F, Smith B, Daly S, Nguyen N, Keshava H, Kuo JV, Seyedin SN. Evaluation of Metastatic Potential in Esophageal and Gastroesophageal Junction (GEJ) Cancer with Adherence to Elective Nodal Volume Guidelines: A Retrospective Analysis of Elective Nodal Irradiation. Int J Radiat Oncol Biol Phys 2023; 117:e320-e321. [PMID: 37785146 DOI: 10.1016/j.ijrobp.2023.06.2360] [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: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) In 2015, expert guidelines on esophageal/GEJ cancer contouring for intensity-modulated radiation therapy (IMRT) were published in IJROBP, which delineate recommended elective nodal basins (celiac, para-aortic, gastrohepatic ligament, supraclavicular) to be irradiated depending on the primary tumor location. We hypothesize that incomplete coverage of these areas increases the risk of the development of distant failures. MATERIALS/METHODS Patients treated for non-metastatic esophageal or GEJ cancer with chemoradiotherapy pre-operatively or definitively from 2012 to 2021 were retrospectively identified from a single institution database. Radiation plans of eligible patients were then analyzed by tumor location. Plans were deemed guideline-compliant if radiation dose coverage, between 41.4 to 45 Gy, encompassed nodal basins recommended by the 2015 guidelines. The primary endpoint of this study was the overall rate of distant disease. Other endpoints included locoregional failures, defined as failures within the radiation field but outside of the primary tumor, and local failures within the gross tumor volume. Summary and descriptive statistics were used to define collected variables. Differences were measured using chi-square and Fisher's exact test for categorical variables and two-sided t-tests for continuous measures. Assessment of distant, locoregional, and local failures were assessed using univariate logistic regression with statistical significance at p < 0.05. RESULTS With a median follow-up of 25.0 months, 37 patients, with a median age of 66, were included in the study. Most patients were male (94.6%) with cT3 (54.1%), cN0 (43.2%), moderately differentiated (47.1%) adenocarcinoma (75.7%) located at the GEJ (56.8%). The median radiation dose used was 50.4 Gy, with the majority of patients receiving concurrent carboplatin and paclitaxel (83.8%). Four patients received induction chemotherapy and 20 (55.6%) underwent esophagectomy. When examining guideline compliance, 17 (46.0%) radiation plans demonstrated adequate ENI. The most common improperly covered nodal basin was para-aortic (65.0%), followed by gastrohepatic (30.0%). No patients with sufficient ENI coverage (0/17) developed distant failure compared to 45.0% (9/20) with insufficient coverage (p = 0.001). There were inappreciable differences in locoregional or local failure rates between those with and without complete ENI. Patients with complete ENI were more likely to be of larger craniocaudal length (p = 0.007) or have N2 disease (p = 0.003). When examining other tumor characteristics (histologic subtype, location, HER2 status, esophagectomy rate) of patients with and without complete ENI, no further differences were noted. CONCLUSION These results suggest that proper coverage of nodal basins, when indicated by expert guidelines, could improve distant metastasis. ENI analysis of previous prospective CRT studies for esophageal cancer could validate these findings.
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Affiliation(s)
- J Lyons
- University of California, Irvine School of Medicine, Irvine, CA
| | - G K Harada
- Department of Radiation Oncology, University of California - Irvine, Orange, CA
| | - J Yeakel
- Department of Radiation Oncology, University of California - Irvine, Orange, CA
| | - M Cho
- Division of Hematology/Oncology, Department of Medicine, University of California - Irvine, Orange, CA
| | - F Dayyani
- Division of Hematology/Oncology, Department of Medicine, University of California - Irvine, Orange, CA
| | - B Smith
- Department of General Surgery, University of California - Irvine, Orange, CA
| | - S Daly
- Department of General Surgery, University of California - Irvine, Orange, CA
| | - N Nguyen
- Department of General Surgery, University of California - Irvine, Orange, CA
| | - H Keshava
- Division of Cardiothoracic Surgery, Department of Surgery, University of California - Irvine, Orange, CA
| | - J V Kuo
- Department of Radiation Oncology, University of California - Irvine, Orange, CA
| | - S N Seyedin
- Department of Radiation Oncology, University of California - Irvine, Orange, CA
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Jaramillo-Jaramillo AS, Coulson TJD, Hofacre C, Jones M, O'Neill L, Nguyen N, Labbe A. Effect of in-water administration of quorum system inhibitors in broilers' productive performance and intestinal microbiome in a mild necrotic enteritis challenge. Avian Pathol 2023; 52:309-322. [PMID: 37485826 DOI: 10.1080/03079457.2023.2224260] [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] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Revised: 06/06/2023] [Accepted: 06/08/2023] [Indexed: 07/25/2023]
Abstract
The poultry industry has been facing the impact of necrotic enteritis (NE), a disease caused by the bacterium Clostridium perfringens producing the haemolytic toxin NetB. NE severity may vary from mild clinical to prominent enteric signs causing reduced growth rates and affecting feed conversion ratio. NetB production is controlled by the Agr-like quorum-sensing (QS) system, which coordinates virulence gene expression in response to bacterial cell density. In this study, the peptide-containing cell-free spent media (CFSM) from Enterococcus faecium was tested in NE challenged broilers in two battery cage and one floor pen studies. Results showed a significant reduction of NE mortality. Metagenomic sequencing of the jejunum microbiome revealed no impact of the CFSM on the microbial community, and growth of C. perfringens was unaffected by CFSM in vitro. The expression of QS-controlled virulence genes netB, plc and pfoA was found to be significantly repressed by CFSM during the mid-logarithmic stage of C. perfringens growth and this corresponded with a significant decrease in haemolytic activity. Purified fractions of CFSM containing bioactive peptides were found to cause reduced haemolysis. These results showed that bioactive peptides reduce NE mortality in broilers by interfering with the QS system of C. perfringens and reducing bacterial virulence. Furthermore, the microbiome of C. perfringens-challenged broilers is not affected by quorum sensing inhibitor containing CFSM.
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Affiliation(s)
| | | | - C Hofacre
- Southern Poultry Research Group, Inc., Watkinsville, GA, USA
| | - M Jones
- Southern Poultry Research Group, Inc., Watkinsville, GA, USA
| | - L O'Neill
- MicroSintesis Inc., Victoria, P.E.I. Canada
| | - N Nguyen
- MicroSintesis Inc., Victoria, P.E.I. Canada
| | - A Labbe
- MicroSintesis Inc., Victoria, P.E.I. Canada
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Nguyen N, Lin CY, Chen YC. The Protective Effect Of Glycyrrhizin, A Natural Sweetener, On The Incidence Of Early Puberty. Clin Nutr ESPEN 2023. [DOI: 10.1016/j.clnesp.2022.09.303] [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: 03/28/2023]
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Ogungbola O, Mahmood R, Bittorf K, Nguyen N, El-Matary W, Wine E, Tyrrell L, Armstrong H, Santer D. A171 INTESTINAL INTERFERON-LAMBDA RECEPTOR 1 EXPRESSION AND RESPONSES ARE SIGNIFICANTLY DECREASED IN PEDIATRIC INFLAMMATORY BOWEL DISEASE PATIENTS. J Can Assoc Gastroenterol 2023. [PMCID: PMC9991124 DOI: 10.1093/jcag/gwac036.171] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 03/09/2023] Open
Abstract
Background While interferon-lambdas (IFN-λs) were initially discovered for their role in antiviral immunity at mucosal barriers such as the lung and gut, there are many unanswered questions for how IFN-λs uniquely dampen inflammatory immune responses. In mouse colitis models, IFN-λs were shown to play a significant role in promoting epithelial barrier integrity and mucosal healing. Microbes present in the gut naturally induce IFN-λs, but how chronic inflammation, such as in patients with inflammatory bowel diseases (IBD), affects IFN-λ biology has not been well studied, especially in humans. Purpose Here, we tested the hypothesis that children with active, more severe IBD would present with lower intestinal IFN-λR levels and IFN-λ responses which could contribute to IBD pathology through exacerbated inflammation, decreased mucosal healing and impaired barrier function. Method We screened 14 novel antibodies to find the optimal clone that accurately stains the unique IFN-λ receptor subunit (IFN-λR1) protein in human intestinal tissue and IFN-λR1 levels were quantified by immunohistochemistry and flow cytometry in biopsy samples from children without IBD, Crohn’s disease, or ulcerative colitis (n=35 total). Fresh patient biopsies (ascending colon or terminal ileum) were also treated in media +/- IFN-λ for 24hrs using our novel ex vivo biopsy assay and changes in gene expression were quantified by RT-qPCR. Intestinal washes were also collected and microbes profiled by shotgun metagenomics. Result(s) We identified 2 new antibodies that accurately stained human cell lines and immune cells known to express IFN-λR1 protein (gut epithelial cells and B cells). We found that IFN-λ receptor (IFN-λR) levels are significantly reduced in gut epithelial and immune cells within pediatric IBD intestinal tissue, even at non-inflamed sites (p<0.01, 30-50% reduction) and this was even more pronounced when comparing moderate/severe disease compared to children with no disease activity. This led to lower IFN-λ responsiveness in IBD compared to non-IBD biopsies when investigating IFN-stimulated gene expression (p<0.05, up to 7-fold reduction). Paired patient gut microbe analyses identified specific species that correlated with changes in IFN-λ receptor expression. Conclusion(s) Together, our findings demonstrate pediatric IBD patients may be less able to induce critical IFN-λ-mediated antimicrobial responses and protective anti-inflammatory pathways. This work supports the goal to restore and promote IFN-λ responses as a novel therapeutic strategy for pediatric IBD. Please acknowledge all funding agencies by checking the applicable boxes below Other Please indicate your source of funding; Children's Hospital Research Institute of Manitoba Disclosure of Interest None Declared
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Affiliation(s)
| | | | - K Bittorf
- University of Alberta, Edmonton, Canada
| | - N Nguyen
- University of Manitoba, Winnipeg
| | | | - E Wine
- University of Alberta, Edmonton, Canada
| | - L Tyrrell
- University of Alberta, Edmonton, Canada
| | | | - D Santer
- University of Manitoba, Winnipeg
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Bleck RR, Virani V, Nguyen N, McWalters J, Danvers AA, Gurney EP. P087Medical management of early pregnancy in emergency departments compared to outpatient: Evaluating a covid-19 institutional policy change to increase healthcare access. Contraception 2022. [PMCID: PMC9671652 DOI: 10.1016/j.contraception.2022.09.111] [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: 11/19/2022]
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Phou S, Nguyen N, Revilla J, Rodberg K, Gibb DR, Pepkowitz SH, Klapper EB. Investigating anti-D in an individual with the weak D type 2 genotype. Immunohematology 2022; 38:77-81. [PMID: 36190200 DOI: 10.21307/immunohematology-2022-046] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Anti-D in individuals with a weak D phenotype is an unexpected finding that may require additional investigation to determine whether the anti-D is an autoantibody or alloantibody. Further investigation may also include assessment of the patient's RHD genotype and exclusion of anti-G. We present a case of an 84-year-old man with the weak D type 2 genotype who developed an unexpected anti-D along with anti-C. Individuals with the weak D type 2 genotype are thought not to be at risk for developing alloanti-D, although the distinction between alloanti-D and autoanti-D may be difficult to ascertain. Furthermore, investigations may affect transfusion recommendations. This patient was restricted to crossmatch-compatible, D-C- red blood cells even though the clinical significance of the anti-D was uncertain. This report is one of a few reported cases of an individual with the weak D type 2 genotype with demonstrable anti-D but without evidence for alloanti-D.
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Affiliation(s)
- S Phou
- Transfusion Medicine, Cedars-Sinai Medical Center, Department of Pathology and Laboratory Medicine, 8700 Beverly Boulevard, South Tower, Room 1690, Los Angeles, CA 90048, United States
| | - N Nguyen
- Immunohematology Reference Laboratory, American Red Cross, Pomona, CA, United States
| | - J Revilla
- Immunohematology Reference Laboratory, American Red Cross, Pomona, CA, United States
| | - K Rodberg
- Immunohematology Reference Laboratory, American Red Cross, Pomona, CA, United States
| | - D R Gibb
- Transfusion Medicine, Cedars-Sinai Medical Center, Department of Pathology and Laboratory Medicine, Los Angeles, CA, United States
| | - S H Pepkowitz
- Transfusion Medicine, Cedars-Sinai Medical Center, Department of Pathology and Laboratory Medicine, Los Angeles, CA, United States
| | - E B Klapper
- Transfusion Medicine, Cedars-Sinai Medical Center, Department of Pathology and Laboratory Medicine, Los Angeles, CA, United States
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Ross P, Wasan H, Croagh D, Nikfarjam M, Nguyen N, Aghmesheh M, Nagrial A, Bartholomeusz D, Hendlisz A, Ajithkumar T, Iwuji C, Turner D, James D, Harris M. 1308P Comparison of tumour size on outcomes for patients with unresectable locally advanced pancreatic adenocarcinoma (LAPC) receiving P-32 microparticles with standard-of-care chemotherapy (SoC CT). Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.07.1440] [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: 11/01/2022] Open
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Young K, Yoon J, Getachew E, Leung B, Nguyen N, Semenov Y, Theodosakis N. 206 Tetracyclines are associated with development of new hyperpigmentation in acne patients. J Invest Dermatol 2022. [DOI: 10.1016/j.jid.2022.05.213] [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]
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Getachew E, Yoon J, Young K, Leung B, Nguyen N, Mostaghimi A, Semenov Y, Theodosakis N. 674 Racial differences in melasma risk factors and treatment patterns. J Invest Dermatol 2022. [DOI: 10.1016/j.jid.2022.05.685] [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]
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Tang K, Tiu B, Wan G, Zhang S, Nguyen N, Leung B, Gusev A, Reynolds K, Kwatra S, Semenov Y. 214 Pre-existing cutaneous autoimmune disease may improve survival in patients treated with anti-PD-1 or anti-PD-L1 therapy: A population level cohort study. J Invest Dermatol 2022. [DOI: 10.1016/j.jid.2022.05.221] [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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Wan G, DeSimone M, Liu F, Nguyen N, Leung B, Choi M, Bruce A, Stagner A, Lian C, Russell-Goldman E, Jiao M, Zhen D, Zhao J, Gil J, Németh I, Marko-Varga G, Kwatra S, Yu K, Semenov Y. 649 CNN-based histopathology image analysis for early-stage melanoma recurrence. J Invest Dermatol 2022. [DOI: 10.1016/j.jid.2022.05.660] [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: 10/17/2022]
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Vasavda C, Wan G, Lu C, Sutaria N, Nguyen N, Szeto M, Adawi W, Deng J, Parthasarathy V, Bordeaux Z, Taylor M, Marani M, Lee K, Alphonse M, Kang S, Semenov Y, Gusev A, Kwatra S. 679 A polygenic risk score uncovers racial and genetic differences in susceptibility to prurigo nodularis in patients of African ancestry. J Invest Dermatol 2022. [DOI: 10.1016/j.jid.2022.05.690] [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]
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Ross P, Nikfarjam M, Nguyen N, Aghmesheh M, Burnett D, Wasan H, Turner D, Croagh D. SO-2 Comparison of resected vs non-resected patients with unresectable locally advanced pancreatic cancer (LAPC) receiving P-32 microparticles with gemcitabine/nab-paclitaxel or FOLFIRINOX chemotherapy in the PanCO study. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.04.401] [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: 11/01/2022] Open
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Lees JP, Poireau V, Tisserand V, Grauges E, Palano A, Eigen G, Brown DN, Kolomensky YG, Fritsch M, Koch H, Schroeder T, Cheaib R, Hearty C, Mattison TS, McKenna JA, So RY, Blinov VE, Buzykaev AR, Druzhinin VP, Golubev VB, Kozyrev EA, Kravchenko EA, Onuchin AP, Serednyakov SI, Skovpen YI, Solodov EP, Todyshev KY, Lankford AJ, Dey B, Gary JW, Long O, Eisner AM, Lockman WS, Panduro Vazquez W, Chao DS, Cheng CH, Echenard B, Flood KT, Hitlin DG, Kim J, Li Y, Lin DX, Middleton S, Miyashita TS, Ongmongkolkul P, Oyang J, Porter FC, Röhrken M, Huard Z, Meadows BT, Pushpawela BG, Sokoloff MD, Sun L, Smith JG, Wagner SR, Bernard D, Verderi M, Bettoni D, Bozzi C, Calabrese R, Cibinetto G, Fioravanti E, Garzia I, Luppi E, Santoro V, Calcaterra A, de Sangro R, Finocchiaro G, Martellotti S, Patteri P, Peruzzi IM, Piccolo M, Rotondo M, Zallo A, Passaggio S, Patrignani C, Flood I, Nguyen N, Shuve BJ, Lacker HM, Bhuyan B, Mallik U, Chen C, Cochran J, Prell S, Gritsan AV, Arnaud N, Davier M, Le Diberder F, Lutz AM, Wormser G, Lange DJ, Wright DM, Coleman JP, Gabathuler E, Hutchcroft DE, Payne DJ, Touramanis C, Bevan AJ, Di Lodovico F, Sacco R, Cowan G, Banerjee S, Brown DN, Davis CL, Denig AG, Gradl W, Griessinger K, Hafner A, Schubert KR, Barlow RJ, Lafferty GD, Cenci R, Jawahery A, Roberts DA, Cowan R, Robertson SH, Seddon RM, Neri N, Palombo F, Cremaldi L, Godang R, Summers DJ, Taras P, De Nardo G, Sciacca C, Raven G, Jessop CP, LoSecco JM, Honscheid K, Kass R, Gaz A, Margoni M, Posocco M, Simi G, Simonetto F, Stroili R, Akar S, Ben-Haim E, Bomben M, Bonneaud GR, Calderini G, Chauveau J, Marchiori G, Ocariz J, Biasini M, Manoni E, Rossi A, Batignani G, Bettarini S, Carpinelli M, Casarosa G, Chrzaszcz M, De Nuccio M, Forti F, Giorgi MA, Lusiani A, Oberhof B, Paoloni E, Rama M, Rizzo G, Walsh JJ, Zani L, Smith AJS, Anulli F, Faccini R, Ferrarotto F, Ferroni F, Pilloni A, Piredda G, Bünger C, Dittrich S, Grünberg O, Heß M, Leddig T, Voß C, Waldi R, Adye T, Wilson FF, Emery S, Vasseur G, Aston D, Cartaro C, Convery MR, Dorfan J, Dunwoodie W, Ebert M, Field RC, Fulsom BG, Graham MT, Hast C, Innes WR, Kim P, Leith DWGS, Luitz S, MacFarlane DB, Muller DR, Neal H, Ratcliff BN, Roodman A, Sullivan MK, Va'vra J, Wisniewski WJ, Purohit MV, Wilson JR, Randle-Conde A, Sekula SJ, Ahmed H, Tasneem N, Bellis M, Burchat PR, Puccio EMT, Alam MS, Ernst JA, Gorodeisky R, Guttman N, Peimer DR, Soffer A, Spanier SM, Ritchie JL, Schwitters RF, Izen JM, Lou XC, Bianchi F, De Mori F, Filippi A, Gamba D, Lanceri L, Vitale L, Martinez-Vidal F, Oyanguren A, Albert J, Beaulieu A, Bernlochner FU, King GJ, Kowalewski R, Lueck T, Miller C, Nugent IM, Roney JM, Sobie RJ, Gershon TJ, Harrison PF, Latham TE, Prepost R, Wu SL. Search for an Axionlike Particle in B Meson Decays. Phys Rev Lett 2022; 128:131802. [PMID: 35426701 DOI: 10.1103/physrevlett.128.131802] [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] [Subscribe] [Scholar Register] [Received: 11/04/2021] [Revised: 01/31/2022] [Accepted: 03/07/2022] [Indexed: 06/14/2023]
Abstract
Axionlike particles (ALPs) are predicted in many extensions of the standard model, and their masses can naturally be well below the electroweak scale. In the presence of couplings to electroweak bosons, these particles could be emitted in flavor-changing B meson decays. We report herein a search for an ALP, a, in the reaction B^{±}→K^{±}a, a→γγ using data collected by the BABAR experiment at SLAC. No significant signal is observed, and 90% confidence level upper limits on the ALP coupling to electroweak bosons are derived as a function of ALP mass, improving current constraints by several orders of magnitude in the range 0.175 GeV<m_{a}<4.78 GeV.
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Affiliation(s)
- J P Lees
- Laboratoire d'Annecy-le-Vieux de Physique des Particules (LAPP), Université de Savoie, CNRS/IN2P3, F-74941 Annecy-Le-Vieux, France
| | - V Poireau
- Laboratoire d'Annecy-le-Vieux de Physique des Particules (LAPP), Université de Savoie, CNRS/IN2P3, F-74941 Annecy-Le-Vieux, France
| | - V Tisserand
- Laboratoire d'Annecy-le-Vieux de Physique des Particules (LAPP), Université de Savoie, CNRS/IN2P3, F-74941 Annecy-Le-Vieux, France
| | - E Grauges
- Universitat de Barcelona, Facultat de Fisica, Departament ECM, E-08028 Barcelona, Spain
| | - A Palano
- INFN Sezione di Bari, I-70126 Bari, Italy
| | - G Eigen
- University of Bergen, Institute of Physics, N-5007 Bergen, Norway
| | - D N Brown
- Lawrence Berkeley National Laboratory and University of California, Berkeley, California 94720, USA
| | - Yu G Kolomensky
- Lawrence Berkeley National Laboratory and University of California, Berkeley, California 94720, USA
| | - M Fritsch
- Ruhr Universität Bochum, Institut für Experimentalphysik 1, D-44780 Bochum, Germany
| | - H Koch
- Ruhr Universität Bochum, Institut für Experimentalphysik 1, D-44780 Bochum, Germany
| | - T Schroeder
- Ruhr Universität Bochum, Institut für Experimentalphysik 1, D-44780 Bochum, Germany
| | - R Cheaib
- University of British Columbia, Vancouver, British Columbia, Canada V6T 1Z1
| | - C Hearty
- Institute of Particle Physics, Vancouver, British Columbia, Canada V6T 1Z1
- University of British Columbia, Vancouver, British Columbia, Canada V6T 1Z1
| | - T S Mattison
- University of British Columbia, Vancouver, British Columbia, Canada V6T 1Z1
| | - J A McKenna
- University of British Columbia, Vancouver, British Columbia, Canada V6T 1Z1
| | - R Y So
- University of British Columbia, Vancouver, British Columbia, Canada V6T 1Z1
| | - V E Blinov
- Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090, Russia
- Novosibirsk State University, Novosibirsk 630090, Russia
- Novosibirsk State Technical University, Novosibirsk 630092, Russia
| | - A R Buzykaev
- Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090, Russia
| | - V P Druzhinin
- Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090, Russia
- Novosibirsk State University, Novosibirsk 630090, Russia
| | - V B Golubev
- Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090, Russia
- Novosibirsk State University, Novosibirsk 630090, Russia
| | - E A Kozyrev
- Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090, Russia
- Novosibirsk State University, Novosibirsk 630090, Russia
| | - E A Kravchenko
- Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090, Russia
- Novosibirsk State University, Novosibirsk 630090, Russia
| | - A P Onuchin
- Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090, Russia
- Novosibirsk State University, Novosibirsk 630090, Russia
- Novosibirsk State Technical University, Novosibirsk 630092, Russia
| | - S I Serednyakov
- Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090, Russia
- Novosibirsk State University, Novosibirsk 630090, Russia
| | - Yu I Skovpen
- Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090, Russia
- Novosibirsk State University, Novosibirsk 630090, Russia
| | - E P Solodov
- Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090, Russia
- Novosibirsk State University, Novosibirsk 630090, Russia
| | - K Yu Todyshev
- Budker Institute of Nuclear Physics SB RAS, Novosibirsk 630090, Russia
- Novosibirsk State University, Novosibirsk 630090, Russia
| | - A J Lankford
- University of California at Irvine, Irvine, California 92697, USA
| | - B Dey
- University of California at Riverside, Riverside, California 92521, USA
| | - J W Gary
- University of California at Riverside, Riverside, California 92521, USA
| | - O Long
- University of California at Riverside, Riverside, California 92521, USA
| | - A M Eisner
- University of California at Santa Cruz, Institute for Particle Physics, Santa Cruz, California 95064, USA
| | - W S Lockman
- University of California at Santa Cruz, Institute for Particle Physics, Santa Cruz, California 95064, USA
| | - W Panduro Vazquez
- University of California at Santa Cruz, Institute for Particle Physics, Santa Cruz, California 95064, USA
| | - D S Chao
- California Institute of Technology, Pasadena, California 91125, USA
| | - C H Cheng
- California Institute of Technology, Pasadena, California 91125, USA
| | - B Echenard
- California Institute of Technology, Pasadena, California 91125, USA
| | - K T Flood
- California Institute of Technology, Pasadena, California 91125, USA
| | - D G Hitlin
- California Institute of Technology, Pasadena, California 91125, USA
| | - J Kim
- California Institute of Technology, Pasadena, California 91125, USA
| | - Y Li
- California Institute of Technology, Pasadena, California 91125, USA
| | - D X Lin
- California Institute of Technology, Pasadena, California 91125, USA
| | - S Middleton
- California Institute of Technology, Pasadena, California 91125, USA
| | - T S Miyashita
- California Institute of Technology, Pasadena, California 91125, USA
| | - P Ongmongkolkul
- California Institute of Technology, Pasadena, California 91125, USA
| | - J Oyang
- California Institute of Technology, Pasadena, California 91125, USA
| | - F C Porter
- California Institute of Technology, Pasadena, California 91125, USA
| | - M Röhrken
- California Institute of Technology, Pasadena, California 91125, USA
| | - Z Huard
- University of Cincinnati, Cincinnati, Ohio 45221, USA
| | - B T Meadows
- University of Cincinnati, Cincinnati, Ohio 45221, USA
| | | | - M D Sokoloff
- University of Cincinnati, Cincinnati, Ohio 45221, USA
| | - L Sun
- University of Cincinnati, Cincinnati, Ohio 45221, USA
| | - J G Smith
- University of Colorado, Boulder, Colorado 80309, USA
| | - S R Wagner
- University of Colorado, Boulder, Colorado 80309, USA
| | - D Bernard
- Laboratoire Leprince-Ringuet, Ecole Polytechnique, CNRS/IN2P3, F-91128 Palaiseau, France
| | - M Verderi
- Laboratoire Leprince-Ringuet, Ecole Polytechnique, CNRS/IN2P3, F-91128 Palaiseau, France
| | - D Bettoni
- INFN Sezione di Ferrara, I-44122 Ferrara, Italy
| | - C Bozzi
- INFN Sezione di Ferrara, I-44122 Ferrara, Italy
| | - R Calabrese
- INFN Sezione di Ferrara, I-44122 Ferrara, Italy
- Dipartimento di Fisica e Scienze della Terra, Università di Ferrarab, I-44122 Ferrara, Italy
| | - G Cibinetto
- INFN Sezione di Ferrara, I-44122 Ferrara, Italy
- Dipartimento di Fisica e Scienze della Terra, Università di Ferrarab, I-44122 Ferrara, Italy
| | - E Fioravanti
- INFN Sezione di Ferrara, I-44122 Ferrara, Italy
- Dipartimento di Fisica e Scienze della Terra, Università di Ferrarab, I-44122 Ferrara, Italy
| | - I Garzia
- INFN Sezione di Ferrara, I-44122 Ferrara, Italy
- Dipartimento di Fisica e Scienze della Terra, Università di Ferrarab, I-44122 Ferrara, Italy
| | - E Luppi
- INFN Sezione di Ferrara, I-44122 Ferrara, Italy
- Dipartimento di Fisica e Scienze della Terra, Università di Ferrarab, I-44122 Ferrara, Italy
| | - V Santoro
- INFN Sezione di Ferrara, I-44122 Ferrara, Italy
| | - A Calcaterra
- INFN Laboratori Nazionali di Frascati, I-00044 Frascati, Italy
| | - R de Sangro
- INFN Laboratori Nazionali di Frascati, I-00044 Frascati, Italy
| | - G Finocchiaro
- INFN Laboratori Nazionali di Frascati, I-00044 Frascati, Italy
| | - S Martellotti
- INFN Laboratori Nazionali di Frascati, I-00044 Frascati, Italy
| | - P Patteri
- INFN Laboratori Nazionali di Frascati, I-00044 Frascati, Italy
| | - I M Peruzzi
- INFN Laboratori Nazionali di Frascati, I-00044 Frascati, Italy
| | - M Piccolo
- INFN Laboratori Nazionali di Frascati, I-00044 Frascati, Italy
| | - M Rotondo
- INFN Laboratori Nazionali di Frascati, I-00044 Frascati, Italy
| | - A Zallo
- INFN Laboratori Nazionali di Frascati, I-00044 Frascati, Italy
| | - S Passaggio
- INFN Sezione di Genova, I-16146 Genova, Italy
| | | | - I Flood
- Harvey Mudd College, Claremont, California 91711, USA
| | - N Nguyen
- Harvey Mudd College, Claremont, California 91711, USA
| | - B J Shuve
- Harvey Mudd College, Claremont, California 91711, USA
| | - H M Lacker
- Humboldt-Universität zu Berlin, Institut für Physik, D-12489 Berlin, Germany
| | - B Bhuyan
- Indian Institute of Technology Guwahati, Guwahati, Assam, 781 039, India
| | - U Mallik
- University of Iowa, Iowa City, Iowa 52242, USA
| | - C Chen
- Iowa State University, Ames, Iowa 50011, USA
| | - J Cochran
- Iowa State University, Ames, Iowa 50011, USA
| | - S Prell
- Iowa State University, Ames, Iowa 50011, USA
| | - A V Gritsan
- Johns Hopkins University, Baltimore, Maryland 21218, USA
| | - N Arnaud
- Université Paris-Saclay, CNRS/IN2P3, IJCLab, F-91405 Orsay, France
| | - M Davier
- Université Paris-Saclay, CNRS/IN2P3, IJCLab, F-91405 Orsay, France
| | - F Le Diberder
- Université Paris-Saclay, CNRS/IN2P3, IJCLab, F-91405 Orsay, France
| | - A M Lutz
- Université Paris-Saclay, CNRS/IN2P3, IJCLab, F-91405 Orsay, France
| | - G Wormser
- Université Paris-Saclay, CNRS/IN2P3, IJCLab, F-91405 Orsay, France
| | - D J Lange
- Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - D M Wright
- Lawrence Livermore National Laboratory, Livermore, California 94550, USA
| | - J P Coleman
- University of Liverpool, Liverpool L69 7ZE, United Kingdom
| | - E Gabathuler
- University of Liverpool, Liverpool L69 7ZE, United Kingdom
| | - D E Hutchcroft
- University of Liverpool, Liverpool L69 7ZE, United Kingdom
| | - D J Payne
- University of Liverpool, Liverpool L69 7ZE, United Kingdom
| | - C Touramanis
- University of Liverpool, Liverpool L69 7ZE, United Kingdom
| | - A J Bevan
- Queen Mary, University of London, London E1 4NS, United Kingdom
| | - F Di Lodovico
- Queen Mary, University of London, London E1 4NS, United Kingdom
| | - R Sacco
- Queen Mary, University of London, London E1 4NS, United Kingdom
| | - G Cowan
- University of London, Royal Holloway and Bedford New College, Egham, Surrey TW20 0EX, United Kingdom
| | - Sw Banerjee
- University of Louisville, Louisville, Kentucky 40292, USA
| | - D N Brown
- University of Louisville, Louisville, Kentucky 40292, USA
| | - C L Davis
- University of Louisville, Louisville, Kentucky 40292, USA
| | - A G Denig
- Johannes Gutenberg-Universität Mainz, Institut für Kernphysik, D-55099 Mainz, Germany
| | - W Gradl
- Johannes Gutenberg-Universität Mainz, Institut für Kernphysik, D-55099 Mainz, Germany
| | - K Griessinger
- Johannes Gutenberg-Universität Mainz, Institut für Kernphysik, D-55099 Mainz, Germany
| | - A Hafner
- Johannes Gutenberg-Universität Mainz, Institut für Kernphysik, D-55099 Mainz, Germany
| | - K R Schubert
- Johannes Gutenberg-Universität Mainz, Institut für Kernphysik, D-55099 Mainz, Germany
| | - R J Barlow
- University of Manchester, Manchester M13 9PL, United Kingdom
| | - G D Lafferty
- University of Manchester, Manchester M13 9PL, United Kingdom
| | - R Cenci
- University of Maryland, College Park, Maryland 20742, USA
| | - A Jawahery
- University of Maryland, College Park, Maryland 20742, USA
| | - D A Roberts
- University of Maryland, College Park, Maryland 20742, USA
| | - R Cowan
- Massachusetts Institute of Technology, Laboratory for Nuclear Science, Cambridge, Massachusetts 02139, USA
| | - S H Robertson
- Institute of Particle Physics, Montréal, Québec, Canada H3A 2T8
- McGill University, Montréal, Québec, Canada H3A 2T8
| | - R M Seddon
- McGill University, Montréal, Québec, Canada H3A 2T8
| | - N Neri
- INFN Sezione di Milano, I-20133 Milano, Italy
| | - F Palombo
- INFN Sezione di Milano, I-20133 Milano, Italy
- Dipartimento di Fisica, Università di Milano, I-20133 Milano, Italy
| | - L Cremaldi
- University of Mississippi, University, Mississippi 38677, USA
| | - R Godang
- University of Mississippi, University, Mississippi 38677, USA
| | - D J Summers
- University of Mississippi, University, Mississippi 38677, USA
| | - P Taras
- Université de Montréal, Physique des Particules, Montréal, Québec, Canada H3C 3J7
| | - G De Nardo
- INFN Sezione di Napoli and Dipartimento di Scienze Fisiche, Università di Napoli Federico II, I-80126 Napoli, Italy
| | - C Sciacca
- INFN Sezione di Napoli and Dipartimento di Scienze Fisiche, Università di Napoli Federico II, I-80126 Napoli, Italy
| | - G Raven
- NIKHEF, National Institute for Nuclear Physics and High Energy Physics, NL-1009 DB Amsterdam, The Netherlands
| | - C P Jessop
- University of Notre Dame, Notre Dame, Indiana 46556, USA
| | - J M LoSecco
- University of Notre Dame, Notre Dame, Indiana 46556, USA
| | - K Honscheid
- Ohio State University, Columbus, Ohio 43210, USA
| | - R Kass
- Ohio State University, Columbus, Ohio 43210, USA
| | - A Gaz
- INFN Sezione di Padova, I-35131 Padova, Italy
| | - M Margoni
- INFN Sezione di Padova, I-35131 Padova, Italy
- Dipartimento di Fisica, Università di Padova, I-35131 Padova, Italy
| | - M Posocco
- INFN Sezione di Padova, I-35131 Padova, Italy
| | - G Simi
- INFN Sezione di Padova, I-35131 Padova, Italy
- Dipartimento di Fisica, Università di Padova, I-35131 Padova, Italy
| | - F Simonetto
- INFN Sezione di Padova, I-35131 Padova, Italy
- Dipartimento di Fisica, Università di Padova, I-35131 Padova, Italy
| | - R Stroili
- INFN Sezione di Padova, I-35131 Padova, Italy
- Dipartimento di Fisica, Università di Padova, I-35131 Padova, Italy
| | - S Akar
- Laboratoire de Physique Nucléaire et de Hautes Energies, Sorbonne Université, Paris Diderot Sorbonne Paris Cité, CNRS/IN2P3, F-75252 Paris, France
| | - E Ben-Haim
- Laboratoire de Physique Nucléaire et de Hautes Energies, Sorbonne Université, Paris Diderot Sorbonne Paris Cité, CNRS/IN2P3, F-75252 Paris, France
| | - M Bomben
- Laboratoire de Physique Nucléaire et de Hautes Energies, Sorbonne Université, Paris Diderot Sorbonne Paris Cité, CNRS/IN2P3, F-75252 Paris, France
| | - G R Bonneaud
- Laboratoire de Physique Nucléaire et de Hautes Energies, Sorbonne Université, Paris Diderot Sorbonne Paris Cité, CNRS/IN2P3, F-75252 Paris, France
| | - G Calderini
- Laboratoire de Physique Nucléaire et de Hautes Energies, Sorbonne Université, Paris Diderot Sorbonne Paris Cité, CNRS/IN2P3, F-75252 Paris, France
| | - J Chauveau
- Laboratoire de Physique Nucléaire et de Hautes Energies, Sorbonne Université, Paris Diderot Sorbonne Paris Cité, CNRS/IN2P3, F-75252 Paris, France
| | - G Marchiori
- Laboratoire de Physique Nucléaire et de Hautes Energies, Sorbonne Université, Paris Diderot Sorbonne Paris Cité, CNRS/IN2P3, F-75252 Paris, France
| | - J Ocariz
- Laboratoire de Physique Nucléaire et de Hautes Energies, Sorbonne Université, Paris Diderot Sorbonne Paris Cité, CNRS/IN2P3, F-75252 Paris, France
| | - M Biasini
- INFN Sezione di Perugia, I-06123 Perugia, Italy
- Dipartimento di Fisica, Università di Perugia, I-06123 Perugia, Italy
| | - E Manoni
- INFN Sezione di Perugia, I-06123 Perugia, Italy
| | - A Rossi
- INFN Sezione di Perugia, I-06123 Perugia, Italy
| | - G Batignani
- INFN Sezione di Pisa, I-56127 Pisa, Italy
- Dipartimento di Fisica, Università di Pisa, I-56127 Pisa, Italy
| | - S Bettarini
- INFN Sezione di Pisa, I-56127 Pisa, Italy
- Dipartimento di Fisica, Università di Pisa, I-56127 Pisa, Italy
| | - M Carpinelli
- INFN Sezione di Pisa, I-56127 Pisa, Italy
- Dipartimento di Fisica, Università di Pisa, I-56127 Pisa, Italy
| | - G Casarosa
- INFN Sezione di Pisa, I-56127 Pisa, Italy
- Dipartimento di Fisica, Università di Pisa, I-56127 Pisa, Italy
| | | | - M De Nuccio
- INFN Sezione di Pisa, I-56127 Pisa, Italy
- Dipartimento di Fisica, Università di Pisa, I-56127 Pisa, Italy
| | - F Forti
- INFN Sezione di Pisa, I-56127 Pisa, Italy
- Dipartimento di Fisica, Università di Pisa, I-56127 Pisa, Italy
| | - M A Giorgi
- INFN Sezione di Pisa, I-56127 Pisa, Italy
- Dipartimento di Fisica, Università di Pisa, I-56127 Pisa, Italy
| | - A Lusiani
- INFN Sezione di Pisa, I-56127 Pisa, Italy
- Scuola Normale Superiore di Pisa, I-56127 Pisa, Italy
| | - B Oberhof
- INFN Sezione di Pisa, I-56127 Pisa, Italy
- Dipartimento di Fisica, Università di Pisa, I-56127 Pisa, Italy
| | - E Paoloni
- INFN Sezione di Pisa, I-56127 Pisa, Italy
- Dipartimento di Fisica, Università di Pisa, I-56127 Pisa, Italy
| | - M Rama
- INFN Sezione di Pisa, I-56127 Pisa, Italy
| | - G Rizzo
- INFN Sezione di Pisa, I-56127 Pisa, Italy
- Dipartimento di Fisica, Università di Pisa, I-56127 Pisa, Italy
| | - J J Walsh
- INFN Sezione di Pisa, I-56127 Pisa, Italy
| | - L Zani
- INFN Sezione di Pisa, I-56127 Pisa, Italy
- Dipartimento di Fisica, Università di Pisa, I-56127 Pisa, Italy
| | - A J S Smith
- Princeton University, Princeton, New Jersey 08544, USA
| | - F Anulli
- INFN Sezione di Roma, I-00185 Roma, Italy
| | - R Faccini
- INFN Sezione di Roma, I-00185 Roma, Italy
- Dipartimento di Fisica, Università di Roma La Sapienza, I-00185 Roma, Italy
| | | | - F Ferroni
- INFN Sezione di Roma, I-00185 Roma, Italy
| | - A Pilloni
- INFN Sezione di Roma, I-00185 Roma, Italy
- Dipartimento di Fisica, Università di Roma La Sapienza, I-00185 Roma, Italy
| | - G Piredda
- INFN Sezione di Roma, I-00185 Roma, Italy
| | - C Bünger
- Universität Rostock, D-18051 Rostock, Germany
| | - S Dittrich
- Universität Rostock, D-18051 Rostock, Germany
| | - O Grünberg
- Universität Rostock, D-18051 Rostock, Germany
| | - M Heß
- Universität Rostock, D-18051 Rostock, Germany
| | - T Leddig
- Universität Rostock, D-18051 Rostock, Germany
| | - C Voß
- Universität Rostock, D-18051 Rostock, Germany
| | - R Waldi
- Universität Rostock, D-18051 Rostock, Germany
| | - T Adye
- Rutherford Appleton Laboratory, Chilton, Didcot, Oxon OX11 0QX, United Kingdom
| | - F F Wilson
- Rutherford Appleton Laboratory, Chilton, Didcot, Oxon OX11 0QX, United Kingdom
| | - S Emery
- IRFU, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France
| | - G Vasseur
- IRFU, CEA, Université Paris-Saclay, F-91191 Gif-sur-Yvette, France
| | - D Aston
- SLAC National Accelerator Laboratory, Stanford, California 94309 USA
| | - C Cartaro
- SLAC National Accelerator Laboratory, Stanford, California 94309 USA
| | - M R Convery
- SLAC National Accelerator Laboratory, Stanford, California 94309 USA
| | - J Dorfan
- SLAC National Accelerator Laboratory, Stanford, California 94309 USA
| | - W Dunwoodie
- SLAC National Accelerator Laboratory, Stanford, California 94309 USA
| | - M Ebert
- SLAC National Accelerator Laboratory, Stanford, California 94309 USA
| | - R C Field
- SLAC National Accelerator Laboratory, Stanford, California 94309 USA
| | - B G Fulsom
- SLAC National Accelerator Laboratory, Stanford, California 94309 USA
| | - M T Graham
- SLAC National Accelerator Laboratory, Stanford, California 94309 USA
| | - C Hast
- SLAC National Accelerator Laboratory, Stanford, California 94309 USA
| | - W R Innes
- SLAC National Accelerator Laboratory, Stanford, California 94309 USA
| | - P Kim
- SLAC National Accelerator Laboratory, Stanford, California 94309 USA
| | - D W G S Leith
- SLAC National Accelerator Laboratory, Stanford, California 94309 USA
| | - S Luitz
- SLAC National Accelerator Laboratory, Stanford, California 94309 USA
| | - D B MacFarlane
- SLAC National Accelerator Laboratory, Stanford, California 94309 USA
| | - D R Muller
- SLAC National Accelerator Laboratory, Stanford, California 94309 USA
| | - H Neal
- SLAC National Accelerator Laboratory, Stanford, California 94309 USA
| | - B N Ratcliff
- SLAC National Accelerator Laboratory, Stanford, California 94309 USA
| | - A Roodman
- SLAC National Accelerator Laboratory, Stanford, California 94309 USA
| | - M K Sullivan
- SLAC National Accelerator Laboratory, Stanford, California 94309 USA
| | - J Va'vra
- SLAC National Accelerator Laboratory, Stanford, California 94309 USA
| | - W J Wisniewski
- SLAC National Accelerator Laboratory, Stanford, California 94309 USA
| | - M V Purohit
- University of South Carolina, Columbia, South Carolina 29208, USA
| | - J R Wilson
- University of South Carolina, Columbia, South Carolina 29208, USA
| | | | - S J Sekula
- Southern Methodist University, Dallas, Texas 75275, USA
| | - H Ahmed
- St. Francis Xavier University, Antigonish, Nova Scotia, Canada B2G 2W5
| | - N Tasneem
- St. Francis Xavier University, Antigonish, Nova Scotia, Canada B2G 2W5
| | - M Bellis
- Stanford University, Stanford, California 94305, USA
| | - P R Burchat
- Stanford University, Stanford, California 94305, USA
| | - E M T Puccio
- Stanford University, Stanford, California 94305, USA
| | - M S Alam
- State University of New York, Albany, New York 12222, USA
| | - J A Ernst
- State University of New York, Albany, New York 12222, USA
| | - R Gorodeisky
- Tel Aviv University, School of Physics and Astronomy, Tel Aviv 69978, Israel
| | - N Guttman
- Tel Aviv University, School of Physics and Astronomy, Tel Aviv 69978, Israel
| | - D R Peimer
- Tel Aviv University, School of Physics and Astronomy, Tel Aviv 69978, Israel
| | - A Soffer
- Tel Aviv University, School of Physics and Astronomy, Tel Aviv 69978, Israel
| | - S M Spanier
- University of Tennessee, Knoxville, Tennessee 37996, USA
| | - J L Ritchie
- University of Texas at Austin, Austin, Texas 78712, USA
| | | | - J M Izen
- University of Texas at Dallas, Richardson, Texas 75083, USA
| | - X C Lou
- University of Texas at Dallas, Richardson, Texas 75083, USA
| | - F Bianchi
- INFN Sezione di Torino, I-10125 Torino, Italy
- Dipartimento di Fisica, Università di Torino, I-10125 Torino, Italy
| | - F De Mori
- INFN Sezione di Torino, I-10125 Torino, Italy
- Dipartimento di Fisica, Università di Torino, I-10125 Torino, Italy
| | - A Filippi
- INFN Sezione di Torino, I-10125 Torino, Italy
| | - D Gamba
- INFN Sezione di Torino, I-10125 Torino, Italy
- Dipartimento di Fisica, Università di Torino, I-10125 Torino, Italy
| | - L Lanceri
- INFN Sezione di Trieste and Dipartimento di Fisica, Università di Trieste, I-34127 Trieste, Italy
| | - L Vitale
- INFN Sezione di Trieste and Dipartimento di Fisica, Università di Trieste, I-34127 Trieste, Italy
| | | | - A Oyanguren
- IFIC, Universitat de Valencia-CSIC, E-46071 Valencia, Spain
| | - J Albert
- University of Victoria, Victoria, British Columbia, Canada V8W 3P6
| | - A Beaulieu
- University of Victoria, Victoria, British Columbia, Canada V8W 3P6
| | - F U Bernlochner
- University of Victoria, Victoria, British Columbia, Canada V8W 3P6
| | - G J King
- University of Victoria, Victoria, British Columbia, Canada V8W 3P6
| | - R Kowalewski
- University of Victoria, Victoria, British Columbia, Canada V8W 3P6
| | - T Lueck
- University of Victoria, Victoria, British Columbia, Canada V8W 3P6
| | - C Miller
- University of Victoria, Victoria, British Columbia, Canada V8W 3P6
| | - I M Nugent
- University of Victoria, Victoria, British Columbia, Canada V8W 3P6
| | - J M Roney
- University of Victoria, Victoria, British Columbia, Canada V8W 3P6
| | - R J Sobie
- Institute of Particle Physics, Victoria, British Columbia, Canada V8W 3P6
- University of Victoria, Victoria, British Columbia, Canada V8W 3P6
| | - T J Gershon
- Department of Physics, University of Warwick, Coventry CV4 7AL, United Kingdom
| | - P F Harrison
- Department of Physics, University of Warwick, Coventry CV4 7AL, United Kingdom
| | - T E Latham
- Department of Physics, University of Warwick, Coventry CV4 7AL, United Kingdom
| | - R Prepost
- University of Wisconsin, Madison, Wisconsin 53706, USA
| | - S L Wu
- University of Wisconsin, Madison, Wisconsin 53706, USA
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Andrianiaina H, Bonnet G, Torras O, Arregle F, Nguyen N, Resseguier N, Bonnet JL, Habib G. Factors associated with favorable outcomes in patients undergoing transcatheter edge-to-edge mitral valve repair (TEER) with the mitraclip device. Eur Heart J Cardiovasc Imaging 2022. [DOI: 10.1093/ehjci/jeab289.226] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Funding Acknowledgements
Type of funding sources: None.
Introduction
Transcatheter edge-to-edge mitral valve repair (TEER) has over the years become a viable alternative to surgery in high-risk patients with severe symptomatic mitral regurgitation (MR). Selection of optimal candidates who will benefit from the procedure remains challenging.
Our study aims to determine clinical, echocardiographic and procedural factors associated with favorable outcomes after mitraclip implantation.
Methods
We retrospectively analyzed the data concerning patients who underwent MitraClip implantation for symptomatic severe MR in our institution.
All patients underwent a clinical evaluation and a transthoracic echocardiography before the procedure, and at follow up (between one and up to three months after the index procedure).
A clinical endpoint combining absence of cardiovascular death, absence of rehospitalization for heart failure and improvement of at least 1 class New York Heart Association NYHA at three months, was used to define a good response.
Results
Among 109 patients referred to our institution for TEER since January 2018, 106 had a successful clip implantation and were included in our study. 76 of them had a primary MR and 30 others a secondary mitral regurgitation (SMR). The primary endpoint was achieved in 65% of those patients. Reduction of MR severity to less than grade 2+ was achieved in 87% of the patients.
A high body mass index (p = 0.03), a high level of NT-proBNP at admission (p = 0.02), the association with at least a moderate tricuspid regurgitation prior to mitraclip implantation (p = 0.02) and a severe residual mitral regurgitation (p = 0.01) were predictive of a worse outcome in all patients. In the group of secondary MR, patients who reached the primary endpoint had significantly a lower telediastolic diameter (p = 0.02). A post procedural transvalvular mitral gradient superior to 4.4 mmHg was associated with a worse prognosis in patients with primary mitral regurgitation (p = 0.004) but not in the group of secondary mitral regurgitation (p = 0.7). Furthermore, the ratios EROA/LVEDV and VR/LVEDV defining proportionate mitral regurgitation were not correlated to any benefit in the secondary MR group.
Conclusion
Our study in real life patients found some elements supporting the results of former studies about predictors of outcomes after mitraclip treatment. Tricuspid regurgitation prior to the procedure and an elevated mitral valve pressure gradient after clip implantation are correlated with a worse prognosis. In accordance with recent literature, an elevate mean gradient seems to have less impact on prognosis in SMR, fostering to get optimal MR reduction in those patients. Identifying criteria that would predict insufficient benefit of Mitraclip implantation is necessary to avoid futility.
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Affiliation(s)
| | - G Bonnet
- APHM La Timone Hospital, Marseille, France
| | - O Torras
- APHM La Timone Hospital, Marseille, France
| | - F Arregle
- APHM La Timone Hospital, Marseille, France
| | - N Nguyen
- APHM La Timone Hospital, Marseille, France
| | | | - J-L Bonnet
- APHM La Timone Hospital, Marseille, France
| | - G Habib
- APHM La Timone Hospital, Marseille, France
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Ross PJ, Wasan HS, Croagh D, Nikfarjam M, Nguyen N, Aghmesheh M, Nagrial AM, Bartholomeusz D, Hendlisz A, Ajithkumar T, Iwuji C, Wilson NE, Turner DM, James DC, Young E, Harris MT. Results of a single-arm pilot study of 32P microparticles in unresectable locally advanced pancreatic adenocarcinoma with gemcitabine/nab-paclitaxel or FOLFIRINOX chemotherapy. ESMO Open 2021; 7:100356. [PMID: 34953400 PMCID: PMC8717429 DOI: 10.1016/j.esmoop.2021.100356] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2021] [Revised: 11/22/2021] [Accepted: 11/23/2021] [Indexed: 01/02/2023] Open
Abstract
Background Unresectable locally advanced pancreatic cancer (LAPC) is generally managed with chemotherapy or chemoradiotherapy, but prognosis is poor with a median survival of ∼13 months (or up to 19 months in some studies). We assessed a novel brachytherapy device, using phosphorous-32 (32P) microparticles, combined with standard-of-care chemotherapy. Patients and methods In this international, multicentre, single-arm, open-label pilot study, adult patients with histologically or cytologically proven unresectable LAPC received 32P microparticles, via endoscopic ultrasound-guided fine-needle implantation, planned for week 4 of 5-fluorouracil, leucovorin, irinotecan and oxaliplatin (FOLFIRINOX) or gemcitabine/nab-paclitaxel chemotherapy, per investigator’s choice. The primary endpoint was safety and tolerability measured using Common Terminology Criteria for Adverse Events version 4.0. The lead efficacy endpoint was local disease control rate at 16 weeks. Results Fifty patients were enrolled and received chemotherapy [intention-to-treat (ITT) population]. Forty-two patients received 32P microparticle implantation [per protocol (PP) population]. A total of 1102 treatment-emergent adverse events (TEAEs) were reported in the ITT/safety population (956 PP), of which 167 (139 PP) were grade ≥3. In the PP population, 41 TEAEs in 16 (38.1%) patients were possibly or probably related to 32P microparticles or implantation procedure, including 8 grade ≥3 in 3 (7.1%) patients, compared with 609 TEAEs in 42 (100%) patients attributed to chemotherapy, including 67 grade ≥3 in 28 patients (66.7%). The local disease control rate at 16 weeks was 82.0% (95% confidence interval: 68.6% to 90.9%) (ITT) and 90.5% (95% confidence interval: 77.4% to 97.3%) (PP). Tumour volume, carbohydrate antigen 19-9 levels, and metabolic tumour response at week 12 improved significantly. Ten patients (20.0% ITT; 23.8% PP) had surgical resection and median overall survival was 15.2 and 15.5 months for ITT and PP populations, respectively. Conclusions Endoscopic ultrasound-guided 32P microparticle implantation has an acceptable safety profile. This study also suggests clinically relevant benefits of combining 32P microparticles with standard-of-care systemic chemotherapy for patients with unresectable LAPC. PanCO is the first prospective study of intratumoural 32P microparticles for locally advanced pancreatic cancer (LAPC). This single-arm study assessed a novel brachytherapy (32P microparticles) combined with standard-of-care chemotherapy. Treatment-emergent adverse events attributable to 32P microparticle implantation were relatively infrequent. Local disease control rate at 16 weeks (82%) and resection rate (20%) suggest a clinical benefit of 32P microparticles. The results suggest that 32P microparticles may address a significant unmet need in patients with unresectable LAPC.
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Affiliation(s)
- P J Ross
- Guy's & St Thomas' Hospital NHS Foundation Trust, London, UK.
| | - H S Wasan
- Imperial College Healthcare NHS Trust, London, UK
| | - D Croagh
- Monash Health, Clayton, Australia
| | - M Nikfarjam
- Austin Hospital, University of Melbourne, Australia
| | - N Nguyen
- Royal Adelaide Hospital, Adelaide, Australia
| | - M Aghmesheh
- Southern Medical Day Care Centre, Wollongong, Australia
| | - A M Nagrial
- The Crown Princess Mary Cancer Centre, Westmead Hospital, Westmead, Australia
| | | | - A Hendlisz
- Institut Jules Bordet, Brussels, Belgium
| | - T Ajithkumar
- Addenbrooke's Hospital, Cambridge University Hospitals NHS Foundation Trust, Cambridge, UK
| | - C Iwuji
- Leicester Royal Infirmary, University Hospitals of Leicester NHS Trust, Leicester, UK
| | - N E Wilson
- OncoSil Medical Limited, Sydney, Australia
| | - D M Turner
- OncoSil Medical Limited, Sydney, Australia
| | - D C James
- OncoSil Medical Limited, Sydney, Australia
| | - E Young
- Southern Star Research Pty Ltd, Gordon, Australia
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Gensheimer M, Gee H, Von Eyben R, Shirato H, Taguchi H, Wong S, Brown E, Nguyen N, Liang R, Maxim P, Wakelee H, Neal J, Das M, Loo B, Diehn M. A Phase II Trial of Individualized Stereotactic Ablative Radiotherapy for Lung Tumors (iSABR). Int J Radiat Oncol Biol Phys 2021. [DOI: 10.1016/j.ijrobp.2021.07.212] [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]
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20
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Miller J, Moradi F, Liang R, Zhang C, Nguyen N, Akhtar F, Harandi N, Colevas A, Divi V, Holsinger F, Beadle B, Le Q, Gensheimer M. Post-Treatment FDG-PET/CT Hopkins Criteria Predict Locoregional Recurrence After Definitive Radiotherapy for Oropharyngeal Squamous Cell Carcinoma. Int J Radiat Oncol Biol Phys 2021. [DOI: 10.1016/j.ijrobp.2021.07.1157] [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]
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21
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Rigatelli G, Zuin M, Vassilev D, Huy D, Nguyen VT, Nguyen N, Ronco F, Roncon L. Feasibility, safety and long term outcomes of complex left main bifurcation treatment using the nano inverted t stenting: a multicentre registry. Eur Heart J 2021. [DOI: 10.1093/eurheartj/ehab724.1228] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
The role of double stenting techniques in distal bifurcation left main (LM) disease has gaining interest over the latest years.
Purpose
We present the 3-year multicentre registry outcomes of dual stenting using ultra-thin strut stents and the Nano Inverted-T (NIT) technique in complex unprotected true LM bifurcation disease.
Methods
We analysed the procedural and medical data of consecutive patients enrolled between 1st January 2014 and 1st December 2019 in a multicentre registry for complex LM bifurcation disease treated with the double stenting technique called NIT due contraindications and/or refusal to surgical treatment. Target lesion failure (TLF) was defined as the composite of cardiovascular death, target-vessel MI (TVMI) and clinically driven target lesion revascularization (TLR).
Results
Among two hundred-ninety-five patients (138 males, mean age 70.3±12.8 years), post-operative success was achieved in 100% of cases. Contrast volume, procedural time, and radiation exposure were 139.2±23.4 ml, 15.3±4.9 min, and 1080±1034 cGy/m2 (Figure), respectively. At a mean follow-up of 39.5±0.6 months TLF rate was 6.1% (n=18) while TLR and cardiovascular mortality rates were 3.0 (n=9) and 2.6% (n=8), respectively. Clinically driven angiographic follow-up was available in 26.4% of patients at a mean time from the procedure of 7.5±0.4 months. Clinically restenosis rate was 3.3%.
Conclusions
Revascularization of complex LM bifurcation disease using the NIT double stenting technique resulted feasible and safe with a low incidence of TLF, excellent survival rate and no stent thrombosis. Figure 1.The NIT technique is based on the use of ultra-thin strut (≤80 micron) stents and double stenting starting with side branch stenting frst. The side branch stent is precisely positioned with one possibly only strut protruding into the main vessel which is balloon crushed before the implantation of the main branch stenting. The Proximal optimization technique (POT)–snuggle kissing–POT sequence is mandatory to ensure the coverage of the side branch ostium by both side branch and main branch stents. Snuggle kissing was performed placing the LCX balloon with the proximal marker at the middle rather than at the proximal marker of the LM-LAD balloon, in order to minimize the elliptical deformation of the LM stent.
Funding Acknowledgement
Type of funding sources: None. Figure 1
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Affiliation(s)
| | - M Zuin
- University Hospital Sainta Anna, Ferrara, Italy
| | - D Vassilev
- University Hospital Alexandrovska, Sofia, Bulgaria
| | - D Huy
- Tam Duc Heart Hospital, Ho Chi Minh, Viet Nam
| | - V T Nguyen
- Thong Nhat Hospital, Ho Chi Minh, Viet Nam
| | - N Nguyen
- Cho Ray Hospital, Ho Chi Minh, Viet Nam
| | - F Ronco
- Hospital dell'Angelo, Mestre-Venice, Italy
| | - L Roncon
- General Hospital of Rovigo, Rovigo, Italy
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22
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Friismose AI, Markovic L, Nguyen N, Gerke O, Schulz MK, Mussmann BR. Amide proton transfer-weighted MRI in the clinical setting - correlation with dynamic susceptibility contrast perfusion in the post-treatment imaging of adult glioma patients at 3T. Radiography (Lond) 2021; 28:95-101. [PMID: 34509365 DOI: 10.1016/j.radi.2021.08.006] [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] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2021] [Revised: 08/13/2021] [Accepted: 08/19/2021] [Indexed: 10/20/2022]
Abstract
INTRODUCTION We investigated the correlation between amide proton transfer-weighted magnetic resonance imaging (APTw MRI) and dynamic susceptibility contrast (DSC) perfusion in order to assess the potential of APTw MRI as an alternative to DSC in adult brain tumor (glioma) imaging. METHODS After Ethical Committee approval, forty adult patients, treated for histopathologically confirmed glioma (World Health Organization (WHO) grade II-IV), were prospectively imaged at 3 Tesla (3 T) with DSC perfusion and a commercially available three-dimensional (3D) APTw sequence. Two consultant neuroradiologists independently performed region of interest (ROI) measurements on relative cerebral blood volume (rCBV) and APTw maps, co-registered with anatomical images. The correlation APTw MRI-DSC perfusion was assessed using Spearman's rank-order test. Inter-observer agreement was evaluated by the intraclass correlation coefficient (ICC) and Bland-Altman (BA) plots. RESULTS A statistically significant moderately strong positive correlation was observed between maximum rCBV (rCBVmax) and maximum APTw (APTwmax) values (observer 1: r = 0.73; p < 0.01; observer 2: r = 0.62; p < 0.01). We found good inter-observer agreement for APTwmax (ICC = 0.82; 95% confidence interval (CI) 0.66-0.90), with somewhat broad outer 95% CI for the BA Limits of Agreement (LoA) (-1.6 to 1.9). ICC for APTwmax was higher than ICC for rCBVmax (ICC = 0.74; 95%; CI 0.50-0.86), but the difference was not statistically significant. CONCLUSION APTwmax values correlate positively with rCBVmax in patients treated for brain glioma. APTw imaging is a reproducible technique, with some observer dependence. Results need to be confirmed by a larger population analysis. IMPLICATIONS FOR PRACTICE APTw MRI can be a useful addition to glioma follow-up imaging and a potential alternative to DSC perfusion, especially in patients where contrast agent is contraindicated.
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Affiliation(s)
- A I Friismose
- Radiology Department, Odense University Hospital, Odense, Denmark.
| | - L Markovic
- Radiology Department, Odense University Hospital, Odense, Denmark
| | - N Nguyen
- Radiology Department, Odense University Hospital, Odense, Denmark
| | - O Gerke
- Department of Nuclear Medicine, Odense University Hospital, Odense, Denmark; Department of Clinical Research, University of Southern Denmark, Odense, Denmark
| | - M K Schulz
- Department of Neurosurgery, Odense University Hospital, Odense, Denmark
| | - B R Mussmann
- Radiology Department, Odense University Hospital, Odense, Denmark; Department of Clinical Research, University of Southern Denmark, Odense, Denmark; OPEN, Odense Patient Data Exploratory Network, Odense University Hospital, Odense, Denmark; Faculty of Health Sciences, Oslo Metropolitan University, Oslo, Norway
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Nguyen N, Kleinjans J, Jennen D. Epirubicin alters the DNA methylation in cardiac microtissue. Toxicol Lett 2021. [DOI: 10.1016/s0378-4274(21)00542-7] [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: 11/29/2022]
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Jäschke M, Faust D, Koenig L, Nguyen N, Ramme A, Marx U, Dehne EM. Kidney-on-a-Chip - Integrating glomerular filtration and tubular reabsorption models. Toxicol Lett 2021. [DOI: 10.1016/s0378-4274(21)00515-4] [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]
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25
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Nguyen N, Thalhammer R, Skudlik S, Müller M, Meyer G, Beutner K. PECAN- ein Konzept zur Förderung der sozialen Teilhabe und Aktivität von Pflegeheimbewohner*innen mit Kontrakturen: eine cluster-randomisierte kontrollierte Studie. Das Gesundheitswesen 2021. [DOI: 10.1055/s-0041-1732164] [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: 10/20/2022]
Affiliation(s)
- N Nguyen
- Institut für Gesundheits- und Pflegewissenschaft, Martin-Luther-Universität Halle-Wittenberg
| | - R Thalhammer
- Fakultät für Angewandte Gesundheits- und Sozialwissenschaften, Technische Hochschule Rosenheim
| | - S Skudlik
- Fakultät für Angewandte Gesundheits- und Sozialwissenschaften, Technische Hochschule Rosenheim
| | - M Müller
- Fakultät für Angewandte Gesundheits- und Sozialwissenschaften, Technische Hochschule Rosenheim
| | - G Meyer
- Institut für Gesundheits- und Pflegewissenschaft, Martin-Luther-Universität Halle-Wittenberg
| | - K Beutner
- Institut für Gesundheits- und Pflegewissenschaft, Martin-Luther-Universität Halle-Wittenberg
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Fang Y, Morse LR, Nguyen N, Battaglino RA, Goldstein RF, Troy KL. Functional electrical stimulation (FES)-assisted rowing combined with zoledronic acid, but not alone, preserves distal femur strength and stiffness in people with chronic spinal cord injury. Osteoporos Int 2021; 32:549-558. [PMID: 32888047 DOI: 10.1007/s00198-020-05610-x] [Citation(s) in RCA: 3] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/26/2020] [Accepted: 08/25/2020] [Indexed: 01/04/2023]
Abstract
UNLABELLED We investigated the effect of 12 months of functional electrical stimulation-assisted rowing with and without zoledronic acid (ZA) on computationally estimated bone strength and stiffness in individuals with spinal cord injury. We found that rowing with ZA, but not rowing alone, improved stiffness at the distal femur, but not the proximal tibia. INTRODUCTION People with spinal cord injury (SCI) have high fracture risk at the knee after the injury. Therapies that prevent bone loss or stimulate an anabolic response in bone have been proposed to reduce fractures. Zoledronic acid (ZA) is a potent bisphosphonate that inhibits osteoclastic resorption. Functional electrical stimulation (FES)-assisted rowing is a potentially osteogenic exercise involving mechanical stimulation to the lower extremities. Here, we investigated the effect of FES-assisted rowing with and without ZA on bone strength and stiffness in individuals with SCI. METHODS Twenty individuals from a cohort of adults with SCI who participated in a clinical trial were included in the study. CT scans of their knees before and after the intervention were converted to finite element models. Bone failure strength (Tult) and stiffness were calculated at the proximal tibia and distal femur. RESULTS Tult at the distal femur increased 4.6% among people who received rowing + ZA and decreased 13.9% among those with rowing only (p < 0.05 for group). Torsional and compressive stiffness at the femur metaphysis increased in people with rowing + ZA (+ 3 to +4%) and decreased in people with rowing only (- 7 to -8%; p < 0.05). Tult in the proximal tibia decreased in everyone, but the loss was attenuated in the rowing + ZA group. People with initially stronger bone tended to lose more strength. CONCLUSION Overall, we observed increases in bone strength at the distal femur but not the proximal tibia, with FES-assisted rowing combined with ZA treatment. Rowing alone did not significantly prevent bone loss at either site, which might be attributed to insufficient mechanical loading.
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Affiliation(s)
- Y Fang
- Department of Mechanical Engineering, Northern Arizona University, Flagstaff, AZ, USA
| | - L R Morse
- Department of Rehabilitation Medicine, University of Minnesota, Minneapolis, MN, USA
| | - N Nguyen
- Department of Rehabilitation Medicine, University of Minnesota, Minneapolis, MN, USA
| | - R A Battaglino
- Department of Rehabilitation Medicine, University of Minnesota, Minneapolis, MN, USA
| | - R F Goldstein
- Spaulding Rehabilitation Hospital, Department of Physical Medicine and Rehabilitation, Harvard Medical School, Cambridge, MA, USA
| | - K L Troy
- Department of Biomedical Engineering, Worcester Polytechnic Institute, Worcester, MA, USA.
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Nguyen N, Verma P, Wang V, Yusin J. M313 WHEAT-DEPENDENT EXERCISE-INDUCED ANAPHYLAXIS: A CASE REPORT. Ann Allergy Asthma Immunol 2020. [DOI: 10.1016/j.anai.2020.08.336] [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: 10/23/2022]
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28
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Nguyen N, Page G, Abi-Gerges N, Miller P, Adams J. Selective beta-3 adrenergic receptor blockade increases contractility of human ventricular trabeculae from HFrEF donors. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.1229] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Background
Alterations of the beta-adrenergic system have been extensively described in the setting of heart failure (HF). Upregulation of beta-3 adrenergic receptor (β3-AdrR) expression in human failing hearts depresses myocardial contractility and, during an acute decompensation event, can be considered a maladaptive compensatory mechanism that exacerbates cardiac dysfunction. APD418 is a selective β3-AdrR antagonist currently in development for patients who have acute heart failure with reduced ejection fraction (HFrEF). APD418 is designed to improve myocardial contractility by selectively antagonizing the β3-AdrR and thereby avoiding the cAMP/Ca2+ signaling pathway stimulated by current inotropes.
Purpose
This study evaluated the effect of a selective β3-AdrR antagonist (APD418) on contractile responses in explanted human ventricular trabeculae obtained from normal and HFrEF hearts.
Methods
Left ventricular trabeculae from normal and HFrEF donors were electrically stimulated (1 Hz) ex-vivo to analyze force generated during contractions. First, BRL37344, a selective β3-AdrR agonist, was applied at increasing concentrations (0.01–10 μM) to confirm β3-AdrR mediated negative inotropy in human myocardial tissue. To test the effect of a selective β3-AdrR antagonist on contractile force, myocardial tissue was pre-treated with APD418 or vehicle for 5 minutes, followed by treatment with non-selective β-AdrR agonists isoproterenol (10 nM) or norepinephrine (5 μM).
Results
In heart tissue from normal donors, the β3-AdrR agonist BRL37344 did not affect contractile function at 0.01 and 0.1 μM. However, in heart tissue from HFrEF donors, BRL37344 induced a significant decrease in contractility at 0.01, 0.1 and 1 μM (85.9±1.8% with 0.1 μM BRL37344 vs 104.1±2.9% with vehicle). Selective blockade of β3-AdrR with APD418 had no effect on force of contraction induced by norepinephrine in cardiac tissue from normal donors. In contrast, APD418 potentiated the force of contraction induced by either isoproterenol (49.1±20.6% increase with 0.1 μM APD418 compared to baseline) or norepinephrine (26.5±4.9% increase with 0.01 μM APD418 compared to baseline) in cardiac tissue from HFrEF patients.
Conclusion
This is, to our knowledge, the first evidence showing that selective blockade of β3-AdrR increases contractility of human ventricular trabeculae from HFrEF donors and suggests that further studies evaluating the therapeutic benefit of APD418 in patients with HFrEF are warranted.
Funding Acknowledgement
Type of funding source: Private company. Main funding source(s): Arena Pharmaceuticals
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Affiliation(s)
- N Nguyen
- Arena Pharmaceuticals, San Diego, United States of America
| | - G Page
- Anabios Corporation, San Diego, United States of America
| | - N Abi-Gerges
- Anabios Corporation, San Diego, United States of America
| | - P.E Miller
- Anabios Corporation, San Diego, United States of America
| | - J.W Adams
- Arena Pharmaceuticals, San Diego, United States of America
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Ponakala A, Yenamandra V, Teng C, Barriga M, Dolorito J, Gorell E, Nguyen N, Tufa S, Rieger K, Keene D, Tang J, Marinkovich M. 304 Type VII collagen NC2 domain expression differentiates severe from milder recessive dystrophic epidermolysis bullosa subtypes. J Invest Dermatol 2020. [DOI: 10.1016/j.jid.2020.03.310] [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]
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30
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Maiden MJ, Finnis ME, Duke GJ, Huning E, Crozier T, Nguyen N, Biradar V, McArthur C, Pilcher D. Obstetric admissions to intensive care units in Australia and New Zealand: a registry-based cohort study. BJOG 2020; 127:1558-1567. [PMID: 32359206 DOI: 10.1111/1471-0528.16285] [Citation(s) in RCA: 4] [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] [Accepted: 04/21/2020] [Indexed: 01/06/2023]
Abstract
OBJECTIVE Describe the epidemiology of obstetric patients admitted to an Intensive Care Unit (ICU). DESIGN Registry-based cohort study. SETTING One hundred and eighty-three ICUs in Australia and New Zealand. POPULATION Women aged 15-49 years, admitted to ICU between 2008 and 2017, classified as pregnant, postpartum or with an obstetric-related diagnosis. METHODS Data were extracted from the Australia and New Zealand Intensive Care Society (ANZICS) Adult Patient Database and national agencies. MAIN OUTCOME MEASURES Incidence of ICU admission, cohort characteristics, maternal outcomes and changes over time. RESULTS The cohort comprised 16 063 patients. The annual number of obstetric ICU admissions increased, whereas their proportion of total ICU admissions (1.3%) did not change (odds ratio 1.02, 95% CI 0.99-1.04, P = 0.14). There were 10 518 (65%) with an obstetric-related ICU diagnosis, and 5545 (35%) with a non-obstetric ICU diagnosis. Mean (SD) age was 31 (6.4) years, 1463 (9.1%) were Indigenous, 2305 (14%) were transferred from another hospital, and 3008 (19%) received mechanical ventilation. Median [IQR] length of stay in hospital was 5.2 [3.1-7.9] days, which included 1.1 [0.7-1.8] days in ICU. There were 108 (0.7%) maternal deaths, most (n = 97, 90%) having a non-obstetric diagnosis. There was no change in risk-adjusted length of stay or mortality over time. CONCLUSIONS Obstetric patients account for a stable proportion of ICU admissions in Australia and New Zealand. These patients typically have a short length of ICU stay and low hospital mortality. TWEETABLE ABSTRACT Obstetric patients in Australia/New Zealand ICUs have a short length of ICU stay and low mortality.
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Affiliation(s)
- M J Maiden
- Intensive Care Unit, Barwon Health, Geelong, Vic., Australia.,Intensive Care Unit, Royal Adelaide Hospital, Adelaide, SA, Australia.,Discipline of Acute Care Medicine, University of Adelaide, Adelaide, SA, Australia
| | - M E Finnis
- Intensive Care Unit, Royal Adelaide Hospital, Adelaide, SA, Australia.,Discipline of Acute Care Medicine, University of Adelaide, Adelaide, SA, Australia.,Australian and New Zealand Intensive Care Research Centre, School of Public Health and Preventive Medicine, Monash University, Clayton, Vic., Australia
| | - G J Duke
- Intensive Care Service, Eastern Health, Box Hill Hospital, Box Hill, Vic., Australia.,Eastern Health Clinical School, Monash University, Clayton, Vic., Australia
| | - Eys Huning
- Department of Obstetrics & Gynaecology, Barwon Health, Geelong, Vic., Australia
| | - Tme Crozier
- Intensive Care Service, Eastern Health, Box Hill Hospital, Box Hill, Vic., Australia.,Eastern Health Clinical School, Monash University, Clayton, Vic., Australia.,Intensive Care Unit, Monash Medical Centre, Monash Health, Clayton, Vic., Australia.,Department of Obstetrics & Gynaecology, Monash University, Monash Medical Centre, Clayton, Vic., Australia
| | - N Nguyen
- Intensive Care Unit, Nepean Hospital, Penrith, NSW, Australia
| | - V Biradar
- Discipline of Acute Care Medicine, University of Adelaide, Adelaide, SA, Australia.,Intensive Care Unit, The Lyell McEwin Hospital, Elizabeth Vale, SA, Australia
| | - C McArthur
- Australian and New Zealand Intensive Care Research Centre, School of Public Health and Preventive Medicine, Monash University, Clayton, Vic., Australia.,Department of Critical Care Medicine, Auckland City Hospital, Auckland, New Zealand
| | - D Pilcher
- Australian and New Zealand Intensive Care Research Centre, School of Public Health and Preventive Medicine, Monash University, Clayton, Vic., Australia.,Department of Intensive Care, Alfred Health, Prahran, Vic., Australia.,Australian and New Zealand Intensive Care Society (ANZICS) Centre for Outcome and Resource Evaluation (CORE), Camberwell, Vic., Australia
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31
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Pang J, Nguyen N, Finegersh A, Ren S, Birmingham A, Xu G, Fisch K, Bafna V, Califano J. Long-read RNA-Seq of human papillomavirus-associated head and neck cancer reveals novel alternatively spliced viral RNA isoforms. Int J Radiat Oncol Biol Phys 2020. [DOI: 10.1016/j.ijrobp.2019.11.116] [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]
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32
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Mai N, Nguyen D, Nguyen N. Influence of frozen storage time and thawing methods on the microflora of thawed Nile tilapia fillets. ACTA ACUST UNITED AC 2020. [DOI: 10.1088/1755-1315/414/1/012011] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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33
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Shugman I, Tran T, Broyd P, Nguyen N, Nguyen T, Premawardhana U. 796 Atrioventricular Accessory Pathway Radiofrequency Catheter Ablation - a Single Centre Experience. Heart Lung Circ 2020. [DOI: 10.1016/j.hlc.2020.09.803] [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: 10/23/2022]
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34
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Schäffler K, Bourlet P, Hanko V, Henderson D, Hoebregs H, Maarten de Bruijin J, Morel du Boil P, Nguyen N, Pereira M, Ramphal E, Rearick E, Sural D, van der Waal W, Walford S, Wong L. Determination of Low-Level Glucose and Fructose in Raw and Refined Crystalline Sugar by High-Performance Anion-Exchange Chromatography: Collaborative Study. J AOAC Int 2019. [DOI: 10.1093/jaoac/85.1.95] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
Abstract
A method was developed and a collaborative study was performed under the auspices of the International Commission of Uniform Methods for Sugar Analysis. The collaborators used high-performance anion-exchange chromatography (HPAEC) to determine trace amounts of glucose and fructose in 3 raw and 3 refined sugar samples provided as blind duplicates. Fourteen laboratories participated in the study. Although difficulties were experienced by a few analysts, 10 laboratories reported positive results. Average repeatabilities and reproducibilities for glucose and fructose in raw sugar were slightly above 5 and 10%, respectively, and the average Horwitz ratios were well under 2. Average repeatabilities and reproducibilities for glucose and fructose in refined sugar were 10 and 22%, respectively; although the Horwitz ratios were >2, they were marginal (2.8). The HPAEC results agreed with results obtained by gas chromatography in an independent laboratory. Because the method was collaboratively studied according to the protocol of the International Union of Pure and Applied Chemistry for collaborative studies, and the results meet its criteria, it is recommended that the method be adopted Official First Action by AOAC INTERNATIONAL.
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Affiliation(s)
- Kevin Schäffler
- Sugar Milling Research Institute, University of Natal, Durban, South Africa 4041
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Affiliation(s)
- M.-N. Tran
- Discipline of Business Analytics, The University of Sydney Business School and ACEMS, Sydney, Australia
| | - N. Nguyen
- Discipline of Business Analytics, The University of Sydney Business School and ACEMS, Sydney, Australia
| | - D. Nott
- Department of Statistics and Applied Probability, National University of Singapore, Singapore
| | - R. Kohn
- School of Economics, UNSW Business School and ACEMS, Sydney, Australia
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36
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Salyer C, Lentz S, Dontsi M, Armstrong M, Butt A, Hoodfar E, Alvarado M, Landers E, Avila M, Nguyen N, Powell CB. Comparison of effectiveness of two strategies to identify Lynch Syndrome in women with endometrial cancer. Gynecol Oncol 2019. [DOI: 10.1016/j.ygyno.2019.03.186] [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: 10/26/2022]
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37
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Robbins RN, Zimmerman R, Korich R, Raymond J, Dolezal C, Choi CJ, Leu CS, Nguyen N, Malee K, Wiznia A, Abrams EJ, Mellins CA. Longitudinal trajectories of neurocognitive test performance among individuals with perinatal HIV-infection and -exposure: adolescence through young adulthood. AIDS Care 2019; 32:21-29. [PMID: 31174426 DOI: 10.1080/09540121.2019.1626343] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
There are an estimated 2.1 million youth less than 15 years of age living with HIV globally (the majority perinatally HIV-infected [PHIV]) and millions more perinatally HIV-exposed uninfected (PHEU) youth who are expected to survive through adolescence and into adulthood. Transitioning from adolescence to young adulthood requires adaptation to more demanding social interactions, academic pressures, and individual responsibilities which place distinct demands on neurocognitive functions. This study examined longitudinal trajectories of neurocognitive test performance in the domains of processing speed (PS), working memory (WM), and executive functioning (EF) among PHIV and demographically similar PHEU from adolescence through young adulthood. Data for this paper come from four time points, spanning approximately 10 years, within the Child and Adolescent Self-Awareness and Health Study (CASAH). Youth age ranged from 15 to 29 years. Longitudinal linear mixed effect models were computed for each test. Few differences in performance were found on tests of EF and WM between PHIV and PHEU youth as they aged, though PHEU youth showed significantly better PS as they aged than PHIV youth. Future research is needed to understand these vulnerable youth's neurocognitive trajectories as a function of HIV infection and -exposure, biological functions and psychosocial stressors.
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Affiliation(s)
- Reuben N Robbins
- HIV Center for Clinical and Behavioral Studies, New York State Psychiatric Institute and Columbia University Medical Center, New York, NY, USA
| | - R Zimmerman
- HIV Center for Clinical and Behavioral Studies, New York State Psychiatric Institute and Columbia University Medical Center, New York, NY, USA
| | - R Korich
- HIV Center for Clinical and Behavioral Studies, New York State Psychiatric Institute and Columbia University Medical Center, New York, NY, USA
| | - J Raymond
- HIV Center for Clinical and Behavioral Studies, New York State Psychiatric Institute and Columbia University Medical Center, New York, NY, USA
| | - C Dolezal
- HIV Center for Clinical and Behavioral Studies, New York State Psychiatric Institute and Columbia University Medical Center, New York, NY, USA
| | - C J Choi
- Division of Biostatistics, New York State Psychiatric Institute, New York, NY, USA
| | - C S Leu
- HIV Center for Clinical and Behavioral Studies, New York State Psychiatric Institute and Columbia University Medical Center, New York, NY, USA
| | - N Nguyen
- HIV Center for Clinical and Behavioral Studies, New York State Psychiatric Institute and Columbia University Medical Center, New York, NY, USA
| | - K Malee
- Department of Psychiatry and Behavioral Science, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - A Wiznia
- Department of Pediatrics, Albert Einstein College of Medicine, Bronx, NY, USA
| | - E J Abrams
- ICAP, Mailman School of Public Health, Columbia University, New York, NY, USA
| | - C A Mellins
- HIV Center for Clinical and Behavioral Studies, New York State Psychiatric Institute and Columbia University Medical Center, New York, NY, USA
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38
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Wang YL, Yao J, Chakhoyan A, Raymond C, Salamon N, Liau LM, Nghiemphu PL, Lai A, Pope WB, Nguyen N, Ji M, Cloughesy TF, Ellingson BM. Association between Tumor Acidity and Hypervascularity in Human Gliomas Using pH-Weighted Amine Chemical Exchange Saturation Transfer Echo-Planar Imaging and Dynamic Susceptibility Contrast Perfusion MRI at 3T. AJNR Am J Neuroradiol 2019; 40:979-986. [PMID: 31097430 DOI: 10.3174/ajnr.a6063] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2018] [Accepted: 04/10/2019] [Indexed: 01/15/2023]
Abstract
BACKGROUND AND PURPOSE Acidification of the tumor microenvironment from abnormal metabolism along with angiogenesis to meet metabolic demands are both hallmarks of malignant brain tumors; however, the interdependency of tumor acidity and vascularity has not been explored. Therefore, our aim was to investigate the association between pH-sensitive amine chemical exchange saturation transfer echoplanar imaging (CEST-EPI) and relative cerebral blood volume (CBV) measurements obtained from dynamic susceptibility contrast (DSC) perfusion MRI in patients with gliomas. MATERIALS AND METHODS In this retrospective study, 90 patients with histologically confirmed gliomas were scanned between 2015 and 2018 (median age, 50.3 years; male/female ratio = 59:31). pH-weighting was obtained using chemical exchange saturation transfer echo-planar imaging estimation of the magnetization transfer ratio asymmetry at 3 ppm, and CBV was estimated using DSC-MR imaging. The voxelwise correlation and patient-wise median value correlation between the magnetization transfer ratio asymmetry at 3 ppm and CBV within T2-hyperintense lesions and contrast-enhancing lesions were evaluated using the Pearson correlation analysis. RESULTS General colocalization of elevated perfusion and high acidity was observed in tumors, with local intratumor heterogeneity. For patient-wise analysis, median CBV and magnetization transfer ratio asymmetry at 3 ppm within T2-hyperintense lesions were significantly correlated (R = 0.3180, P = .002), but not in areas of contrast enhancement (P = .52). The positive correlation in T2-hyperintense lesions remained within high-grade gliomas (R = 0.4128, P = .001) and in isocitrate dehydrogenase wild-type gliomas (R = 0.4300, P = .002), but not in World Health Organization II or in isocitrate dehydrogenase mutant tumors. Both magnetization transfer ratio asymmetry at 3 ppm and the voxelwise correlation between magnetization transfer ratio asymmetry and CBV were higher in high-grade gliomas compared with low-grade gliomas in T2-hyperintense tumors (magnetization transfer ratio asymmetry, P = .02; Pearson correlation, P = .01). The same trend held when comparing isocitrate dehydrogenase wild-type gliomas and isocitrate dehydrogenase mutant gliomas (magnetization transfer ratio asymmetry, P = .04; Pearson correlation, P = .01). CONCLUSIONS A positive linear correlation between CBV and acidity in areas of T2-hyperintense, nonenhancing tumor, but not enhancing tumor, was observed across patients. Local heterogeneity was observed within individual tumors.
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Affiliation(s)
- Y-L Wang
- From the UCLA Brain Tumor Imaging Laboratory (Y.-L.W., J.Y., A.C., C.R., B.M.E.).,Department of Radiology (Y.-L.W.), People's Liberation Army General Hospital, Beijing, China
| | - J Yao
- From the UCLA Brain Tumor Imaging Laboratory (Y.-L.W., J.Y., A.C., C.R., B.M.E.).,Center for Computer Vision and Imaging Biomarkers, Department of Radiological Sciences (J.Y., A.C., C.R., N.S., W.B.P., B.M.E.).,Department of Bioengineering (J.Y., B.M.E.), Henry Samueli School of Engineering and Applied Science, University of California, Los Angeles, Los Angeles, California
| | - A Chakhoyan
- From the UCLA Brain Tumor Imaging Laboratory (Y.-L.W., J.Y., A.C., C.R., B.M.E.).,Center for Computer Vision and Imaging Biomarkers, Department of Radiological Sciences (J.Y., A.C., C.R., N.S., W.B.P., B.M.E.)
| | - C Raymond
- From the UCLA Brain Tumor Imaging Laboratory (Y.-L.W., J.Y., A.C., C.R., B.M.E.).,Center for Computer Vision and Imaging Biomarkers, Department of Radiological Sciences (J.Y., A.C., C.R., N.S., W.B.P., B.M.E.)
| | - N Salamon
- Center for Computer Vision and Imaging Biomarkers, Department of Radiological Sciences (J.Y., A.C., C.R., N.S., W.B.P., B.M.E.)
| | - L M Liau
- UCLA Brain Research Institute (L.M.L., A.L., B.M.E.).,Department of Neurosurgery (L.M.L.), David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, California
| | - P L Nghiemphu
- Department of Neurology (P.L.N., A.L., N.N., M.J., T.F.C.)
| | - A Lai
- Department of Neurology (P.L.N., A.L., N.N., M.J., T.F.C.).,UCLA Brain Research Institute (L.M.L., A.L., B.M.E.)
| | - W B Pope
- Center for Computer Vision and Imaging Biomarkers, Department of Radiological Sciences (J.Y., A.C., C.R., N.S., W.B.P., B.M.E.)
| | - N Nguyen
- Department of Neurology (P.L.N., A.L., N.N., M.J., T.F.C.)
| | - M Ji
- Department of Neurology (P.L.N., A.L., N.N., M.J., T.F.C.)
| | - T F Cloughesy
- Department of Neurology (P.L.N., A.L., N.N., M.J., T.F.C.)
| | - B M Ellingson
- From the UCLA Brain Tumor Imaging Laboratory (Y.-L.W., J.Y., A.C., C.R., B.M.E.) .,Center for Computer Vision and Imaging Biomarkers, Department of Radiological Sciences (J.Y., A.C., C.R., N.S., W.B.P., B.M.E.).,Physics and Biology in Medicine (B.M.E.).,Department of Psychiatry and Biobehavioral Sciences (B.M.E.).,UCLA Brain Research Institute (L.M.L., A.L., B.M.E.).,Department of Bioengineering (J.Y., B.M.E.), Henry Samueli School of Engineering and Applied Science, University of California, Los Angeles, Los Angeles, California
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Armas J, Nguyen N, Niarchos V, Obers NA, Van Riet T. Metastable Nonextremal Antibranes. Phys Rev Lett 2019; 122:181601. [PMID: 31144902 DOI: 10.1103/physrevlett.122.181601] [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] [Subscribe] [Scholar Register] [Received: 12/17/2018] [Indexed: 06/09/2023]
Abstract
We find new and compelling evidence for the metastability of supersymmetry-breaking states in holographic backgrounds whose consistency has been the source of ongoing disagreements in the literature. As a concrete example, we analyze anti-D3 branes at the tip of the Klebanov-Strassler throat. Using the blackfold formalism we examine how temperature affects the conjectured metastable state and determine whether and how the existing extremal results generalize when going beyond extremality. In the extremal limit we exactly recover the results of Kachru, Pearson, and Verlinde, in a regime of parameter space that was previously inaccessible. Away from extremality we uncover a metastable black Neveu-Schwarz five-brane (NS5) state that disappears near a geometric transition where black anti-D3 branes and black NS5 branes become indistinguishable. This is remarkably consistent with complementary earlier results based on the analysis of regularity conditions of backreacted solutions. We therefore provide highly nontrivial evidence for the metastability of antibranes in noncompact throat geometries since we find a consistent picture over different regimes in parameter space.
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Affiliation(s)
- J Armas
- Institute for Theoretical Physics, UVA, 1090 GL Amsterdam, Netherlands
- Dutch Institute for Emergent Phenomena, Netherlands
| | - N Nguyen
- Department of Mathematical Sciences and Centre for Particle Theory Durham University, Durham DH1 3LE, United Kingdom
| | - V Niarchos
- Department of Mathematical Sciences and Centre for Particle Theory Durham University, Durham DH1 3LE, United Kingdom
| | - N A Obers
- The Niels Bohr Institute, University of Copenhagen Blegdamsvej 17, DK-2100 Copenhagen ∅, Denmark
| | - T Van Riet
- Instituut voor Theoretische Fysica, K.U.Leuven, Celestijnenlaan 200D, B-3001 Leuven, Belgium
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40
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Kittle A, Sisler S, Nguyen N, Gill J, Reed V. Method-comparison analysis between a Contour Next glucometer and YSI 2900 biochemistry analyzer in equine. J Equine Vet Sci 2019. [DOI: 10.1016/j.jevs.2019.03.203] [Citation(s) in RCA: 1] [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: 11/26/2022]
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Morse LR, Troy KL, Fang Y, Nguyen N, Battaglino R, Goldstein RF, Gupta R, Taylor JA. Combination Therapy With Zoledronic Acid and FES-Row Training Mitigates Bone Loss in Paralyzed Legs: Results of a Randomized Comparative Clinical Trial. JBMR Plus 2019; 3:e10167. [PMID: 31131346 PMCID: PMC6524678 DOI: 10.1002/jbm4.10167] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/31/2018] [Revised: 12/02/2018] [Accepted: 12/11/2018] [Indexed: 12/11/2022] Open
Abstract
Spinal cord injury (SCI) results in rapid, severe osteoporosis and an increased risk of lower extremity fractures. Despite the medical complications associated with these fractures, there is no standard of care to prevent osteoporotic fractures following SCI. Functional electrical stimulation- (FES-) assisted rowing is a promising intervention to improve bone health in SCI because of its ability to generate a muscular contraction in conjunction with mechanical loading of the lower extremity long bones. Combination therapy consisting of FES-rowing plus zoledronic acid (ZA) may be a superior treatment via inhibition of bone resorption and stimulation of new bone formation. We studied participants enrolled in a randomized clinical trial comparing FES-rowing alone with FES-rowing plus ZA to improve bone health in SCI. Volumetric CT scans at the distal femur and proximal tibial metaphyses were performed. Bone geometric properties (cortical thickness index [CTI], cortical compressive strength index [CSI], buckling ratio [BR], bending strength index) and mineral (cortical bone volume [CBV], cortical bone mineral density, cortical bone mineral content) indices were determined. In models adjusting for baseline values, we found that the CBV (p = 0.05 to 0.006), the CTI (p = 0.009), and the BR (p = 0.001) at both the distal femoral and proximal tibial metaphyses were greater in the ZA plus rowing group compared with the rowing-only group. Similarly, there was a significant positive association between the total rowing work completed and the BR at the proximal tibia (p = 0.05). A subgroup analysis of the rowing-only arm showed that gains in the CSI at the tibial metaphysis varied in a dose-dependent fashion based on the total amount of exercise performed (p = 0.009). These findings demonstrate that the osteogenic response to FES-rowing is dose-dependent. Combination therapy with ZA and FES-row training has therapeutic potential to improve bone quality, and perhaps reduce fracture risk at the most common fracture site following SCI. © 2019 The Authors. JBMR Plus Published by Wiley Periodicals, Inc. on behalf of the American Society for Bone and Mineral Research.
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Affiliation(s)
- L R Morse
- Rocky Mountain Regional Spinal Injury System Craig Rehabilitation Hospital Englewood CO USA.,Department of PMR University of Colorado School of Medicine Aurora CO USA
| | - K L Troy
- Department of Biomedical Engineering Worcester Polytechnic Institute Worcester MA USA
| | - Y Fang
- Department of Biomedical Engineering Worcester Polytechnic Institute Worcester MA USA
| | - N Nguyen
- Rocky Mountain Regional Spinal Injury System Craig Rehabilitation Hospital Englewood CO USA
| | - R Battaglino
- Department of PMR University of Colorado School of Medicine Aurora CO USA
| | - R F Goldstein
- Rocky Mountain Regional Spinal Injury System Craig Rehabilitation Hospital Englewood CO USA
| | - R Gupta
- Department of Radiology Massachusetts General Hospital Boston MA USA
| | - J A Taylor
- Spaulding Rehabilitation Hospital Boston MA USA.,Department of Physical Medicine and Rehabilitation Harvard Medical School Boston MA USA
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Le H, Nguyen N, Tran P, Hoa N, Hung N, Moran A, Mossawi HJA, Kak N, Ahmedov S, Brooks MB, Nardell EA, Tierney DB. Process measure of FAST tuberculosis infection control demonstrates delay in likely effective treatment. Int J Tuberc Lung Dis 2019; 23:140-146. [PMID: 30621813 DOI: 10.5588/ijtld.18.0268] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
SETTING The tuberculous infection control strategy, FAST (Find cases Actively, Separate safely and Treat effectively), recommends prompt initiation of likely effective anti-tuberculosis treatment informed by Xpert® MTB/RIF results.OBJECTIVE: To describe FAST implementation at Quang Nam Provincial TB and Lung Disease Hospital (QNH), Tam Ky, Viet Nam, using time to initiation of effective TB treatment as a process measure. DESIGN Hospital logs were used to calculate the time to likely effective treatment in patients with pulmonary TB (PTB) hospitalised during the study period. RESULTS Between 1 January and 31 December 2016, of 858 patients treated for PTB, 493 (57.5%) received likely effective treatment. The median time to likely effective treatment was 3 days (interquartile range 2.0-6.0), with 213 (43.2%) patients receiving likely effective treatment within 2 days. Of 81 patients receiving likely effective treatment for drug-susceptible TB with a positive Xpert result as their initial in-patient diagnostic test, 64 (79.0%) received likely effective treatment within 2 days compared with 10 (5.7%) who were initially smear-negative then found to be Xpert-positive (P < 0.0001). CONCLUSIONS A 'time to' process measure of the FAST tuberculous infection control strategy indicates delays in the initiation of likely effective anti-tuberculosis treatment in a resource-limited hospital. Expanding access to Xpert may speed time to likely effective treatment.
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Affiliation(s)
- H Le
- University Research Co, LLC, Hanoi
| | - N Nguyen
- National Lung Hospital/National TB Program, Hanoi
| | - P Tran
- Pham Ngoc Thach Hospital, Quang Nam, Viet Nam
| | - N Hoa
- National Lung Hospital/National TB Program, Hanoi, Center for Operational Research, International Union Against Tuberculosis and Lung Disease, Paris, France
| | - N Hung
- National Lung Hospital/National TB Program, Hanoi
| | - A Moran
- University Research Co, LLC, Chevy Chase, Maryland
| | | | - N Kak
- University Research Co, LLC, Chevy Chase, Maryland
| | - S Ahmedov
- United States Agency for International Development, Washington, DC
| | - M B Brooks
- Department of Global Health and Social Medicine, Harvard Medical School, Boston, Massachusetts
| | - E A Nardell
- Division of Global Health Equity, Brigham & Women's Hospital, Boston, Massachusetts, USA
| | - D B Tierney
- Division of Global Health Equity, Brigham & Women's Hospital, Boston, Massachusetts, USA
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Sousselier L, Raitano G, Petoumenou M, Benfenati E, Nguyen N, Ananiadou S, Do Q, Olivier E, Michel S, Rat P. Role of in silico tools and text mining in the risk assessment of selected alkaloids. Toxicol Lett 2018. [DOI: 10.1016/j.toxlet.2018.06.772] [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]
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44
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Battaglino R, Cobb G, Nguyen N, Morse L. The discriminative ability of fraxto identify prevalent post-SCI lower extremity osteoporotic fractures. Ann Phys Rehabil Med 2018. [DOI: 10.1016/j.rehab.2018.05.010] [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]
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45
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Harris M, Croagh D, Aghmesheh M, Nagrial A, Nguyen N, Wasan H, Ajithkumar T, Kraszewski A, Maher T, Ross P. PanCO: An open-label, single-arm pilot study of Oncosil™ in patients with unresectable locally advanced pancreatic adenocarcinoma in combination with FOLFIRINOX or gemcitabine+nab-paclitaxel chemotherapies. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy151.140] [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: 11/13/2022] Open
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Winge M, Nasrallah M, Fuhriman J, Ramanathan M, Azameera A, Nguyen N, Inayathullah M, Rajadas J, Khavari P, Butte A, Marinkovich M. 947 Targeting pathogenic interactions between Rac1 and NCK1 in psoriasis. J Invest Dermatol 2018. [DOI: 10.1016/j.jid.2018.03.959] [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: 11/27/2022]
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47
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Nielsen D, Rehling C, Korsholm K, Buch S, Nguyen N, Hermansen M, Sodemann M. 4.5-O4Multidisciplinary network meetings improve patients’ course of treatment – a clinical study in Denmark. Eur J Public Health 2018. [DOI: 10.1093/eurpub/cky047.151] [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: 11/12/2022] Open
Affiliation(s)
- D Nielsen
- University of Southern Denmark, Odense, Denmark
| | - C Rehling
- University of Southern Denmark, Odense, Denmark
- Migrant Health Clinic, Odense University Hospital, Denmark
| | - K Korsholm
- Migrant Health Clinic, Odense University Hospital, Denmark
| | - S Buch
- Migrant Health Clinic, Odense University Hospital, Denmark
| | - N Nguyen
- Migrant Health Clinic, Odense University Hospital, Denmark
| | - M Hermansen
- Migrant Health Clinic, Odense University Hospital, Denmark
| | - M Sodemann
- University of Southern Denmark, Odense, Denmark
- Migrant Health Clinic, Odense University Hospital, Denmark
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Nguyen N, Fledderus J, Busink R, Smits C, Ramaekers PJL, Jaworski NW. 263 Interaction between Protein Sources (wheat gluten and protein concentrate from soy and potato) and Starch Sources (pre-gelatinized and native pea starch) on Weanling Pig Growth Performance and Diarrhea Incidence. J Anim Sci 2018. [DOI: 10.1093/jas/sky073.260] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [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)
- N Nguyen
- Wageningen University, Wageningen, Netherlands
- Trouw Nutrition, Amersfoort, Netherlands
| | | | - R Busink
- Trouw Nutrition, Amersfoort, Netherlands
| | - C Smits
- Trouw Nutrition, Amersfoort, Netherlands
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Zvavanjanja R, Mauzo S, Golardi N, Zhang R, Baxter A, Nguyen N, Lei C. Abstract No. 503 Image-guided bone marrow biopsies: pathological comparison of marrow specimen quality obtained using a Mallet versus without. J Vasc Interv Radiol 2018. [DOI: 10.1016/j.jvir.2018.01.548] [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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Tsakiridis T, Isfahanian N, Nguyen N, Wright J, Hanna W, Swaminath A, Shargal Y, Agzaraian J, Wierzbicki M, Chow T. 127TiP Phase I study of neo-adjuvant Stereotactic Body Radiotherapy (SBRT) in operable patients with borderline resectable locally advanced NSCLC (LA-NSCLC) (LINNEARRE I STUDY: NCT02433574). J Thorac Oncol 2018. [DOI: 10.1016/s1556-0864(18)30400-3] [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]
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