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Chuai X, Chen P, Chen H, Wang W, Deng Y, Ruan L, Li W, Tan W. Protective efficacy and hepatitis B virus clearance in mice enhanced by cell-mediated immunity with novel prime-boost regimens. J Viral Hepat 2017; 24:337-345. [PMID: 27885748 DOI: 10.1111/jvh.12649] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/19/2016] [Accepted: 10/13/2016] [Indexed: 12/30/2022]
Abstract
In this study, anti-hepatitis B virus (HBV) immunity was evaluated in mice using several regimens of the HBV recombinant protein vaccine HBSS1 that expressed in CHO cells containing S (1-223 aa) and preS1 (21-47 aa) and recombinant adenovirus rAdSS1 vaccine. Further, the protective efficacy of these vaccine regimens was studied in a mouse model. High titres of antigen-specific antibodies and neutralizing activity were elicited in mice after vaccination. However, robust multi-antigen (preS1 and S)-specific cell-mediated immunity (CMI) was only detected in mice primed with HBSS1 and boosted with rAdSS1. Moreover, functional T-cell responses with high levels of cytokines and antigen-specific cytotoxic T-cell responses (CD107a+ CD8+ ) were also detected in the mice. Rapid clearance of hepatitis B surface antigen and HBV DNA in blood and significantly decreased hepatitis B envelope antigen levels were observed in mice immunized with the heterogeneous prime-boost vaccine after hepatitis B virus challenge by hydrodynamic injection (HI) of pCS-HBV1.3. The clearance of HBV correlated well with antigen-specific CMI (Th1 and CTL responses) and cytokine profiles (IFN-γ, TNF-α, IL-2) elicited by vaccination. Taken together, our results might contribute to the development of new human HBV vaccines and a better understanding of the mechanisms underlying immune protection and clearance of hepatitis B virus infection.
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Feng T, Li HM, Yuan P, Yu DK, Ma F, Tan WW, Du ZL, Yang J, Huang Y, Lin DX, Xu BH, Tan W. [Correlations between genetic variations of glutathione synthetase gene and the response to platinum-based chemotherapy and prognosis of small cell lung cancer patients]. ZHONGHUA ZHONG LIU ZA ZHI [CHINESE JOURNAL OF ONCOLOGY] 2017; 39:115-120. [PMID: 28219206 DOI: 10.3760/cma.j.issn.0253-3766.2017.02.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To explore the associations between genetic variations of glutathione synthetase gene (GSS) and response to platinum-based chemotherapy of small cell lung cancer(SCLC), and to analyze the influencing factors on survival. Methods: Four haplotype-tagging single nucleotide polymorphisms (htSNPs) of GSS were genotyped by Sequenom MassARRAY methods in 903 SCLC patients who received platinum-based chemotherapy, and had different response and survival time. The associations between genotypes and platinum-based chemotherapy response were measured by odds ratios (OR) and 95% confidence intervals (CI), adjusted for sex, age, smoking, KPS, staging and chemotherapy regiments, by unconditional logistic regression model. The hazard ratios (HR) were estimated by Cox proportional hazards regression model. Results: Among the 903 patients, 462(51.2%) cases received cis-platinum and etoposide treatment while others were treated with carboplatin and etoposide. 656 patients were chemotherapy responders in the study with a response rate of 72.6%. Patients were followed up to get their survival information. The median survival time (MST) of these patients was 25.0 months.We found that rs725521 located in the 3' near gene region of GSS was significantly associated with chemotherapy response. Compared with the T allele, patients with C allele had a worse chemotherapy response and an increased risk of no-responders (P=0.027). Rs7265992 and rs725521 of GSS were associated with the overall survival (OS) of SCLC patients who received platinum-based chemotherapy (HR=1.16, 95% CI=1.02-1.33, P=0.027; HR=1.17, 95% CI=1.05-1.31, P=0.006, respectively). The patients carrying 1 or 2 risk alleles and the patients carrying 3 or 4 risk alleles had worse MST than the patients without the rs7265992A and rs725521C risk alleles (24.0 and 22.0 versus 30.0 months), with the HR for death being 1.26 (95% CI=1.04-1.54) and with the HR of 1.52 (95%CI=1.18-1.97, P=0.001). Rs2025096 and rs2273684 were not associated with the OS of SCLC patients who received platinum-based chemotherapy. Age ≤ 56, KPS> 80, limited-stage, chemotherapy response and radiation therapy had a remarkably prolonged OS (all P<0.05). Conclusions: These results suggest that GSS genetic polymorphism rs725521 plays an important role in the response to platinum-based chemotherapy, while rs7265992 and rs725521 have important effect on the prognosis of SCLC patients, which may be potential genetic biomarkers for personalized treatment of SCLC.
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Schneeberger Y, Stenzig J, Löser A, Wong E, Tan W, Reichenspurner H, Foo R, Eschenhagen T. Non-Nucleoside DNA Methyltransferase Inhibition Attenuates Pressure Overload Induced Cardiac Hypertrophy in Rats. Thorac Cardiovasc Surg 2017. [DOI: 10.1055/s-0037-1598938] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Yan B, Hu Y, Ban KHK, Tiang Z, Ng C, Lee J, Tan W, Chiu L, Tan TW, Seah E, Ng CH, Chng WJ, Foo R. Single-cell genomic profiling of acute myeloid leukemia for clinical use: A pilot study. Oncol Lett 2017; 13:1625-1630. [PMID: 28454300 PMCID: PMC5403273 DOI: 10.3892/ol.2017.5669] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2015] [Accepted: 11/21/2016] [Indexed: 02/03/2023] Open
Abstract
Although bulk high-throughput genomic profiling studies have led to a significant increase in the understanding of cancer biology, there is increasing awareness that bulk profiling approaches do not completely elucidate tumor heterogeneity. Single-cell genomic profiling enables the distinction of tumor heterogeneity, and may improve clinical diagnosis through the identification and characterization of putative subclonal populations. In the present study, the challenges associated with a single-cell genomics profiling workflow for clinical diagnostics were investigated. Single-cell RNA-sequencing (RNA-seq) was performed on 20 cells from an acute myeloid leukemia bone marrow sample. Putative blasts were identified based on their gene expression profiles and principal component analysis was performed to identify outlier cells. Variant calling was performed on the single-cell RNA-seq data. The present pilot study demonstrates a proof of concept for clinical single-cell genomic profiling. The recognized limitations include significant stochastic RNA loss and the relatively low throughput of the current proposed platform. Although the results of the present study are promising, further technological advances and protocol optimization are necessary for single-cell genomic profiling to be clinically viable.
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Abstract
Surface functionalization via molecular design has been a key approach to incorporate new functionalities into existing biomaterials for biomedical application. Mussel-inspired polydopamine (PDA) has aroused great interest as a new route to the functionalization of biomaterials, due to its simplicity and material independency in deposition, favorable interactions with cells, and strong reactivity for secondary functionalization. Herein, this review attempts to highlight the recent findings and progress of PDA in bio-surface functionalization for biomedical applications. The efforts made to elucidate the polymerization mechanism, PDA structure, and the preparation parameters have been discussed. Interactions between PDA coatings and the various cell types involved in different biomedical applications including general cell adhesion, bone regeneration, blood compatibility, and antimicrobial activity have also been highlighted. A brief discussion of post-functionalization of PDA and nanostructured PDA is also provided.
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Tan W, Li X, Xu R, Wang X, Li Y, HU D. Geometrical Changes of Parotid, Submandibular, and Thyroid Glands During Intensity Modulated Radiation Therapy for Nasopharyngeal Carcinoma. Int J Radiat Oncol Biol Phys 2016. [DOI: 10.1016/j.ijrobp.2016.06.1555] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Vizcarrondo F, Patel S, Pennell N, Pakkala S, West H, Kratzke R, Tarazi J, Wilner K, Polli A, Tan W, Liu Y, Valota O, Piperdi B, Reckamp K. Phase 1b study of crizotinib in combination with pembrolizumab in patients (pts) with untreated ALK-positive (+) advanced non-small cell lung cancer (NSCLC). Ann Oncol 2016. [DOI: 10.1093/annonc/mdw383.91] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Oviedo A, Lebrun S, Ho J, Tan W, Vuillaume G, Veljkovic E, Hoeng J, Vanscheeuwijck P, Peitsch M. Toxicological characterization of the mentholated heat-not-burn product THS2.2M in a 90-day OECD Inhalation Study. Toxicol Lett 2016. [DOI: 10.1016/j.toxlet.2016.06.2067] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Tan W, Zhao Y, Lu R, Zhu N. Comparison of viral and epidemiological profiles among hospitalized children with severe acute respiratory diseases in Beijing and Shanghai. J Clin Virol 2016. [DOI: 10.1016/j.jcv.2016.08.223] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Phillips B, Sharma D, Sciuscio D, Veljkovic E, Lebrun S, Verbeeck J, Tan W, Kogel U, Ho J, Vuillaume G, Leroy P, Hoeng J, Peitsch M, Vanscheeuwijck P. Toxicity of aerosols of propylene glycol, vegetable glycerin and nicotine in Sprague-Dawley rats in a 90-d OECD 413 sub-chronic inhalation study. Toxicol Lett 2016. [DOI: 10.1016/j.toxlet.2016.06.1733] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Tan W, Wang Y, Zhao Y, Lu R. Prevalence and genetic characterization of enterovirus D68 among children with severe acute respiratory infection in China. J Clin Virol 2016. [DOI: 10.1016/j.jcv.2016.08.226] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Xie L, Vo L, Keshishian A, Price K, Singh P, Mardekian J, Bruno A, Baser O, Kim J, Tan W, Trocio J. Comparison of hospital length of stay and hospitalization costs among patients with non-valvular atrial fibrillation treated with apixaban or warfarin: An early view. J Med Econ 2016; 19:769-76. [PMID: 27028360 DOI: 10.3111/13696998.2016.1171774] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
OBJECTIVE To quantify and compare hospital length of stay (LOS) and costs between hospitalized non-valvular atrial fibrillation (NVAF) patients treated with either apixaban or warfarin via a large claims database. METHODS Adult patients hospitalized with AF were selected from the Premier Perspective Claims Database (01JAN2013-31MARCH2014). Patients with evidence of valvular heart disease, valve replacement procedures, or pregnancy during the index hospitalization were excluded. Patients treated with apixaban or warfarin during hospitalization were identified. Propensity score matching (PSM) was performed to control for baseline imbalances between patients treated with apixaban or warfarin. Primary outcomes were hospital LOS (days), post-medication administration LOS, and index hospitalization costs, and were compared using paired t-tests in the matched sample. RESULTS Before PSM, 2894 apixaban and 124,174 warfarin patients were identified. Patients treated with warfarin were older and sicker compared to those treated with apixaban. After applying PSM, a total of 2886 patients were included in each cohort, and baseline characteristics were balanced. The mean (standard deviation [SD] and median) hospital LOS was significantly (p = 0.002) shorter for patients treated with apixaban for 5.1 days (5.7 and 3) compared to warfarin for 5.5 days (4.8 and 4). The trend appeared consistent in the hospital LOS from point of apixaban or warfarin administration to discharge (4.5 vs 4.7 days, p = 0.051). Patients administered apixaban incurred significantly lower hospitalization costs compared to those administered warfarin ($11,262 vs $12,883; p < 0.001). CONCLUSIONS Among NVAF patients, apixaban treatment was associated with significantly shorter hospital LOS and lower costs when compared to warfarin treatment.
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Tan W, Sun J, Zhou L, Li Y, Wu X. Randomized trial comparing efficacies of zoledronate and alendronate for improving bone mineral density and inhibiting bone remodelling in women with post-menopausal osteoporosis. J Clin Pharm Ther 2016; 41:519-23. [PMID: 27440710 DOI: 10.1111/jcpt.12429] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2016] [Accepted: 06/30/2016] [Indexed: 12/21/2022]
Abstract
WHAT IS KNOWN AND OBJECTIVE Bisphosphonates are the first-line medications for treating osteoporosis. The aim of our prospective study was to compare the efficacy of zoledronate with that of alendronate in women with post-menopausal osteoporosis based on the evaluations of bone mineral density (BMD) and serum levels of biochemical markers of bone remodelling. METHODS Chinese women with post-menopausal osteoporosis were randomly assigned to the zoledronate (n = 52) or alendronate (n = 53) group, and were treated with 5 mg zoledronate intravenously once per year and 70 mg alendronate orally once per week, respectively. During a 3-year follow-up period, the lumbar spine, femoral neck and total hip were examined using dual-energy x-ray absorptiometry every 12 months to assess BMD, and the serum levels of amino-terminal propeptide of type I procollagen (P1NP) and carboxy-terminal cross-linked telopeptides of type 1 collagen (CTX) were measured to evaluate bone formation and resorption, respectively. RESULTS AND DISCUSSION Greater increases in BMD occurred in the zoledronate group over the 3-year follow-up period, with increases in BMD of 41·3%, 13·5% and 20·0% at the lumbar spine, femoral neck and total hip, respectively, compared with 16·9%, 5·88% and 8·93% in the alendronate group, respectively (P < 0·05 for all). At the 3-year follow-up, P1NP and β-CTX levels were reduced by 42·1% and 50·5% in the zoledronate group, respectively, whereas the levels of each were reduced by 19·5% and 19·4% in the alendronate group, respectively (P < 0·05 for all). WHAT IS NEW AND CONCLUSIONS Once yearly zoledronate administered intravenously was more efficacious for improving BMD and reducing the serum levels of P1NP and β-CTX in Chinese women with post-menopausal osteoporosis than alendronate administered orally once per week. The incidence of adverse events after the second and third zoledronate treatments was substantially lower than that in the alendronate group, suggesting a substantially lower risk of adverse events with long-term use of zoledronate in Chinese women, compared with that of alendronate use.
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Strayer A, Ocsoy I, Tan W, Jones JB, Paret ML. Low Concentrations of a Silver-Based Nanocomposite to Manage Bacterial Spot of Tomato in the Greenhouse. PLANT DISEASE 2016; 100:1460-1465. [PMID: 30686188 DOI: 10.1094/pdis-05-15-0580-re] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
Bacterial spot, caused by four Xanthomonas spp., is one of the most damaging diseases of tomato worldwide. Due to limited disease management options, growers rely heavily on copper-based bactericides, which are often ineffective due to the presence of copper-resistant Xanthomonas strains. This study was undertaken to characterize the antibacterial activity of a silver-based nanocomposite, Ag-dsDNA-GO, and its potential as an alternative to copper. Ag-dsDNA-GO at rates as low as 10 μg/ml killed all bacterial cells of copper-tolerant and -sensitive Xanthomonas perforans strains in suspensions containing approximately 103 CFU/ml within 15 min of exposure in vitro, whereas equivalent rates of copper (10, 25, and 50 μg/ml) were unable to significantly reduce populations compared with the untreated control after 24 h of exposure (P = 0.05). All copper concentrations killed the copper-sensitive X. perforans strain but required exposure for ≥1 h. Ag-dsDNA-GO also exhibited antibacterial activity against copper-tolerant X. vesicatoria, X. euvesicatoria, and X. gardneri strains. In greenhouse studies, tomato plants treated with Ag-dsDNA-GO at either 75 or 100 μg/ml prior to artificial inoculation significantly reduced disease severity when compared with copper-mancozeb and negative controls (P = 0.05). This study highlights the potential of Ag-dsDNA-GO as an alternative to copper in tomato transplant production.
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Gan K, Yang L, Tan W, Zhang M. AB0102 Iguratimod (T-614) Suppresses Rankl-Induced Osteoclast Differentiation and Migration in RAW264.7 Cells via NF-κB and MAPK Pathways. Ann Rheum Dis 2016. [DOI: 10.1136/annrheumdis-2016-eular.5679] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Shafrin J, Bruno A, MacEwan JP, Campinha-Bacote A, Trocio J, Shah M, Tan W, Romley JA. Physician and Patient Preferences for Nonvalvular Atrial Fibrillation Therapies. VALUE IN HEALTH : THE JOURNAL OF THE INTERNATIONAL SOCIETY FOR PHARMACOECONOMICS AND OUTCOMES RESEARCH 2016; 19:451-459. [PMID: 27325337 DOI: 10.1016/j.jval.2016.01.001] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/21/2015] [Revised: 12/24/2015] [Accepted: 01/05/2016] [Indexed: 06/06/2023]
Abstract
OBJECTIVES The objective of this study was to compare patient and physician preferences for different antithrombotic therapies used to treat nonvalvular atrial fibrillation (NVAF). METHODS Patients diagnosed with NVAF and physicians treating such patients completed 12 discrete choice questions comparing NVAF therapies that varied across five attributes: stroke risk, major bleeding risk, convenience (no regular blood testing/dietary restrictions), dosing frequency, and patients' out-of-pocket cost. We used a logistic regression to estimate the willingness-to-pay (WTP) value for each attribute. RESULTS The 200 physicians surveyed were willing to trade off $38 (95% confidence interval [CI] $22 to $54] in monthly out-of-pocket cost for a 1% (absolute) decrease in stroke risk, $14 (95% CI $8 to $21) for a 1% decrease in major bleeding risk, and $34 (95% CI $9 to $60) for more convenience. The WTP value among 201 patients surveyed was $30 (95% CI $18 to $42) for reduced stroke risk, $16 (95% CI $9 to $24) for reduced bleeding risk, and -$52 (95% CI -$96 to -6) for convenience. The WTP value for convenience among patients using warfarin was $9 (95% CI $1 to $18) for more convenience, whereas patients not currently on warfarin had a WTP value of -$90 (95% CI -$290 to -$79). Both physicians' and patients' WTP value for once-daily dosing was not significantly different from zero. On the basis of survey results, 85.0% of the physicians preferred novel oral anticoagulants (NOACs) to warfarin. NOACs (73.0%) were preferred among patients using warfarin, but warfarin (78.2%) was preferred among patients not currently using warfarin. Among NOACs, both patients and physicians preferred apixaban. CONCLUSIONS Both physicians and patients currently using warfarin preferred NOACs to warfarin. Patients not currently using warfarin preferred warfarin over NOACs because of an apparent preference for regular blood testing/dietary restrictions.
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Tan W, Shi Y, Feng X, Wang F, Xuan W, Zhang M. SAT0051 Transcription Factor SOX5 Promotes Rheumatoid Arthritis Synovial Fibroblast Migration and Invasion by Regulating MMP9 Expression via Downregulated MIR-15A/MIR-16. Ann Rheum Dis 2016. [DOI: 10.1136/annrheumdis-2016-eular.3167] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Ong T, Anand V, Tan W, Watson A, Sahota O. Physical activity study of older people in hospital: A cross-sectional analysis using accelerometers. Eur Geriatr Med 2016. [DOI: 10.1016/j.eurger.2015.10.008] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Wang Y, Zhu N, Li Y, Lu R, Wang H, Liu G, Zou X, Xie Z, Tan W. Metagenomic analysis of viral genetic diversity in respiratory samples from children with severe acute respiratory infection in China. Clin Microbiol Infect 2016; 22:458.e1-9. [PMID: 26802214 PMCID: PMC7172101 DOI: 10.1016/j.cmi.2016.01.006] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2015] [Revised: 12/21/2015] [Accepted: 01/11/2016] [Indexed: 12/11/2022]
Abstract
Severe acute respiratory infection (SARI) in children is thought to be mainly caused by infection with various viruses, some of which have been well characterized; however, analyses of respiratory tract viromes among children with SARI versus those without are limited. In this study, nasopharyngeal swabs from children with and without SARI (135 versus 15) were collected in China between 2008 and 2010 and subjected to multiplex metagenomic analyses using a next-generation sequencing platform. The results show that members of the Paramyxoviridae, Coronaviridae, Parvoviridae, Orthomyxoviridae, Picornaviridae, Anelloviridae and Adenoviridae families represented the most abundant species identified (>50% genome coverage) in the respiratory tracts of children with SARI. The viral population found in the respiratory tracts of children without SARI was less diverse and mainly dominated by the Anelloviridae family with only a small proportion of common epidemic respiratory viruses. Several almost complete viral genomes were assembled, and the genetic diversity was determined among several samples based on next-generation sequencing. This research provides comprehensive mapping of the viromes of children with SARI and indicates high heterogeneity of known viruses present in the childhood respiratory tract, which may benefit the detection and prevention of respiratory disease.
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Wang X, Ning Y, Tan W, Yu H, Li Z, Guo X. Population-based comparative analysis of differentially expressed genes between Kashin–Beck disease grades I and II. Scand J Rheumatol 2016; 45:230-5. [DOI: 10.3109/03009742.2015.1058416] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Deitelzweig S, Evans M, Hillson E, Trocio J, Bruno A, Tan W, Lingohr-Smith M, Singh P, Lin J. Warfarin time in therapeutic range and its impact on healthcare resource utilization and costs among patients with nonvalvular atrial fibrillation. Curr Med Res Opin 2016; 32:87-94. [PMID: 26451675 DOI: 10.1185/03007995.2015.1103217] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
BACKGROUND Warfarin is efficacious for reducing stroke risk among patients with nonvalvular atrial fibrillation (NVAF). However, the efficacy and safety of warfarin are influenced by its time in therapeutic range (TTR). OBJECTIVE To assess differences in healthcare resource utilization and costs among NVAF patients with low (<60%) and high (≥60%) warfarin TTRs in an integrated delivery network (IDN) setting. METHODS Patients with NVAF were identified from an electronic medical record database. Patients were required to have ≥6 international normalized prothrombin time ratio (INR) tests. NVAF patients were grouped into two cohorts: those with warfarin TTR <60% (low TTR) and those with warfarin TTR ≥60% (high TTR). Healthcare resource utilization and costs were evaluated during a 12 month follow-up period. Multivariable regressions were used to assess the impact of different warfarin TTRs on healthcare costs. RESULTS Among the study population, greater than half (54%, n = 1595) had a low TTR, and 46% (n = 1356) had a high TTR. Total all-cause healthcare resource utilization was higher among patients in the low TTR cohort vs. the high TTR cohort (number of encounters: 70.2 vs. 56.1, p < 0.001). After adjusting for patient characteristics, total all-cause healthcare costs and stroke-related healthcare costs were $2398 (p < 0.001) and $687 (p = 0.02) higher, respectively, for patients in the low TTR cohort vs. the high TTR cohort. LIMITATIONS In this retrospective study, we were only able to evaluate the association and not the causality between healthcare resource utilization and costs with the different warfarin TTRs. CONCLUSION Many warfarin-treated NVAF patients have a low warfarin TTR. NVAF patients with low vs. patients with high warfarin TTR used healthcare resources to a greater extent, which was reflected in higher healthcare costs.
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Batchelor JM, Tan W, Tour S, Yong A, Montgomery AA, Thomas KS. Validation of the Vitiligo Noticeability Scale: a patient-reported outcome measure of vitiligo treatment success. Br J Dermatol 2015; 174:386-94. [PMID: 26409256 PMCID: PMC5019146 DOI: 10.1111/bjd.14208] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/23/2015] [Indexed: 11/30/2022]
Abstract
BACKGROUND Patient-reported outcome measures are rarely used in vitiligo trials. The Vitiligo Noticeability Scale (VNS) is a new patient-reported outcome measure assessing how 'noticeable' vitiligo patches are after treatment. The noticeability of vitiligo after treatment is an important indicator of treatment success from the patient's perspective. OBJECTIVES To evaluate the construct validity, acceptability and interpretability of the VNS. METHODS Clinicians (n = 33) and patients with vitiligo (n = 101) examined 39 image pairs, each depicting a vitiligo lesion pre- and post-treatment. Using an online questionnaire, respondents gave a global assessment of treatment success and a VNS score for treatment response. Clinicians also estimated percentage repigmentation of lesions (< 25%; 25-50%; 51-75%; > 75%). Treatment success was defined as 'yes' on global assessment, a VNS score of 4 or 5, and > 75% repigmentation. Agreement between respondents and the different scales was assessed using kappa (κ) statistics. RESULTS Vitiligo Noticeability Scale scores were associated with both patient- and clinician-reported global treatment success (κ = 0·54 and κ = 0·47, respectively). Percentage repigmentation showed a weaker association with patient- and clinician-reported global treatment success (κ = 0·39 and κ = 0·29, respectively). VNS scores of 4 or 5 can be interpreted as representing treatment success. Images depicting post-treatment hyperpigmentation were less likely to be rated as successful. CONCLUSIONS The VNS is a valid patient-reported measure of vitiligo treatment success. Further validation of the VNS is required, using larger sets of clinical pre- and post-treatment images, affecting a wider range of anatomical sites.
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Yuan H, Fu S, Tan W, He J, Wu K. Study on the hydrocyclonic separation of waste plastics with different density. WASTE MANAGEMENT (NEW YORK, N.Y.) 2015; 45:108-111. [PMID: 25736578 DOI: 10.1016/j.wasman.2015.01.037] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/21/2014] [Revised: 01/22/2015] [Accepted: 01/25/2015] [Indexed: 06/04/2023]
Abstract
The recycling of waste plastics is an important aspect in the recycling of solid waste. Based on the difference in density, PET and PVC particles was separated with help of the centrifugal sedimentation and shearing dispersion in a hydrocyclone. Through tests and CFD simulation, the relationship between the separating efficiency and pressure drop and split ratio has been investigated. Test results show that the Newton efficiency can reach above 80%, i.e. the purity of PVC could reach 93.2% while the purity of PET could reach 94.5%.
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Tan W, Han G, Xu R, Li X, Wang X, Li Y, HU D. The Changes of the Neck Node Levels During Chemoradiation Therapy for Nasopharyngeal Carcinoma: The Estimated Margin for Geometrical Coverage. Int J Radiat Oncol Biol Phys 2015. [DOI: 10.1016/j.ijrobp.2015.07.1298] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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125
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Zhao L, Zhang S, An X, Tan W, Pang D, Ouyang H. Toxicological effects of benzo[a]pyrene on DNA methylation of whole genome in ICR mice. Cell Mol Biol (Noisy-le-grand) 2015; 61:115-119. [PMID: 26522067] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2015] [Accepted: 10/27/2015] [Indexed: 06/05/2023]
Abstract
It has been well known that alterations in DNA methylation - an important regulator of gene transcription - lead to cancer. Therefore a change in the level of DNA methylation of whole genome has been considered as a biomarker of carcinogenesis. Previously, a large number of experimental results in genetic toxicology have showed that benzo[a]pyrene could cause DNA mutation and fragmentation. However, there was little to no studies on alterations in DNA methylation of genome directly result from exposure to benzo[a]pyrene. In this paper, possible mechanisms of alterations in whole genomic DNA methylation by benzo[a]pyrene were investigated using ICR mice after benzo[a]pyrene exposure. The blood, liver, pancreas, skin, lung and bladder of ICR mice were removed and checked after a fixed time interval (6 hours) of benzo[a]pyrene exposure, and whole genomic DNA methylation level was determined by high performance liquid chromatography (HPLC). The results exhibited tissue specificity, that is, the level of whole genomic DNA methylation decreases significantly in blood and liver, rather than pancreas, lung, skin and bladder of ICR mice. This study investigated the direct relationship between aberrant DNA methylation level and benzo[a]pyrene exposure, which might be helpful to clarify the toxicological mechanism of benzo[a]pyrene in epigenetic perspectives.
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Meisel Z, George S, Ahn S, Bazin D, Brown BA, Browne J, Carpino JF, Chung H, Cole AL, Cyburt RH, Estradé A, Famiano M, Gade A, Langer C, Matoš M, Mittig W, Montes F, Morrissey DJ, Pereira J, Schatz H, Schatz J, Scott M, Shapira D, Smith K, Stevens J, Tan W, Tarasov O, Towers S, Wimmer K, Winkelbauer JR, Yurkon J, Zegers RGT. Mass Measurement of 56Sc Reveals a Small A = 56 Odd-Even Mass Staggering, Implying a Cooler Accreted Neutron Star Crust. PHYSICAL REVIEW LETTERS 2015; 115:162501. [PMID: 26550869 DOI: 10.1103/physrevlett.115.162501] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2015] [Indexed: 06/05/2023]
Abstract
We present the mass excesses of (52-57)Sc, obtained from recent time-of-flight nuclear mass measurements at the National Superconducting Cyclotron Laboratory at Michigan State University. The masses of 56Sc and 57Sc were determined for the first time with atomic mass excesses of -24.85(59)((-54)(+0)) MeV and -21.0(1.3) MeV, respectively, where the asymmetric uncertainty for 56Sc was included due to possible contamination from a long-lived isomer. The 56Sc mass indicates a small odd-even mass staggering in the A = 56 mass chain towards the neutron drip line, significantly deviating from trends predicted by the global FRDM mass model and favoring trends predicted by the UNEDF0 and UNEDF1 density functional calculations. Together with new shell-model calculations of the electron-capture strength function of 56Sc, our results strongly reduce uncertainties in model calculations of the heating and cooling at the 56Ti electron-capture layer in the outer crust of accreting neutron stars. We find that, in contrast to previous studies, neither strong neutrino cooling nor strong heating occurs in this layer. We conclude that Urca cooling in the outer crusts of accreting neutron stars that exhibit superbursts or high temperature steady-state burning, which are predicted to be rich in A≈56 nuclei, is considerably weaker than predicted. Urca cooling must instead be dominated by electron capture on the small amounts of adjacent odd-A nuclei contained in the superburst and high temperature steady-state burning ashes. This may explain the absence of strong crust Urca cooling inferred from the observed cooling light curve of the transiently accreting x-ray source MAXI J0556-332.
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Trocio J, Bruno A, Tuell K, Price K, Singh P, Mardekian J, Odell K, Patel C, Tan W, Henk H, Vo L. Treatment and Discharge Patterns Among Patients Hospitalized With Nonvalvular Atrial Fibrillation (NVAF) Who Transition From the Inpatient to Outpatient Setting. Chest 2015. [DOI: 10.1378/chest.2250462] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
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128
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Amin A, Keshishian A, Xie L, Baser O, Price K, Vo L, Singh P, Bruno A, Mardekian J, Tan W, Singhal S, Patel C, Odell K, Trocio J. Comparison of Short-Term Bleeding-Related Health Care Utilization and Costs Among Treatment-Naïve Nonvalvular Atrial Fibrillation Patients Initiating Apixaban, Dabigatran, Rivaroxaban, or Warfarin. Chest 2015. [DOI: 10.1378/chest.2253437] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
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129
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Jimenez R, Sicotte H, Barman P, Sinnwell J, Eiken P, Atwell T, McMenomy B, Tan W, Wu K, Bryce A, Ho T, Pitot H, Quevedo J, Costello B, Dronca R, Moynihan T, Wang L, Qin R, Carlson R, Kohli M. 2523 Feasibility analysis of pathology and genetic yield from a prospective trial of tissue biopsies in metastatic castrate resistant prostate cancer. Eur J Cancer 2015. [DOI: 10.1016/s0959-8049(16)31342-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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130
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Kohli M, Tan W, Eiken P, McMenomy B, Atwell T, Carlson R, Campion M, Wang L, Costello B, Pitot H, Quevedo F, Ho T, Bryce A, Qin R, Paz-Fumagalli R, Moynihan T, Dronca R, Liu M. 2573 Impact of biopsy of metastases on circulating tumor cell (CTC) counts in castrate resistant prostate cancer (CRPC). Eur J Cancer 2015. [DOI: 10.1016/s0959-8049(16)31392-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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131
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Ma W, Fetterly G, LeVea C, Zhao Y, Dy G, Iyer R, Tan W, Brady W, Whitworth A, Adjei A. 2315 A phase Ib study of the FGFR/VEGFR inhibitor dovitinib (D) combined with gemcitabine (G) and Capecitabine (C) in advanced pancreatic cancer patients. Eur J Cancer 2015. [DOI: 10.1016/s0959-8049(16)31231-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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132
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Fu X, Pang X, Qi H, Chen S, Li Y, Tan W. XIAP inhibitor Embelin inhibits bladder cancer survival and invasion in vitro. Clin Transl Oncol 2015. [DOI: 10.1007/s12094-015-1363-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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133
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Tan W, Feng X, Shi Y, Xu L, Wang F, Zhang M. THU0074 Transcription Factor SOX5 is an Essential Regulator of Rankl Expression in Synovial Fibroblast Contributing to Bone Erosion in Experimental Arthritis Model. Ann Rheum Dis 2015. [DOI: 10.1136/annrheumdis-2015-eular.4748] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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134
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Lin N, Wei Y, Tan W, Zhang M. AB0131 Adiponectin Promotes Synovial Fibroblast Survival, Migration and Invasion in Rheumatoid Arthritis. Ann Rheum Dis 2015. [DOI: 10.1136/annrheumdis-2015-eular.5403] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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135
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Huang Y, Sun J, Wang X, Tao X, Wang H, Tan W. Asymptomatic chronic gastritis decreases metformin tolerance in patients with type 2 diabetes. J Clin Pharm Ther 2015; 40:461-5. [PMID: 26032654 DOI: 10.1111/jcpt.12290] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2014] [Accepted: 04/30/2015] [Indexed: 01/26/2023]
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136
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Xie L, Vo L, Keshishian A, Price K, Singh P, Mardekian J, Bruno A, Baser O, Kim J, Tan W, Trocio J. Abstract 234: Comparison of Hospital Length of Stay and Costs between Non-valvular Atrial Fibrillation Patients Treated with Either Apixaban or Warfarin. Circ Cardiovasc Qual Outcomes 2015. [DOI: 10.1161/circoutcomes.8.suppl_2.234] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Background:
Patients with non-valvular atrial fibrillation (NVAF) have an increased risk of stroke and are often treated with oral anticoagulants (i.e. warfarin). However, apixaban, a novel oral anticoagulant (NOAC), has been shown to significantly reduce stroke risk and result in a significantly shorter hospital length of stay (LOS) compared to those treated with warfarin.
Objectives:
To compare LOS and hospitalization costs among real-world hospitalized NVAF patients treated with apixaban or warfarin. Evaluate the difference in costs among different patient characteristics, including LOS and CHADS
2
score.
Methods:
Patients ≥18 years of age diagnosed with AF (ICD-9-CM code: 427.31) were identified from the Premier Perspective Claims Database (01JAN2009-31MAR2014). Patients were required to have 30 days of follow-up post-index hospitalization discharge. Patients with claims for mitral valvular heart disease, valve replacement procedures, pregnancy or other NOACs during the index hospitalization were excluded. Patients were classified into two cohorts (apixaban and warfarin) depending on treatment received during hospitalization. Demographic and clinical characteristics were collected 12 months prior to and during the NVAF index hospitalization. The two cohorts were 1:1 propensity score matched (PSM) on patient and hospital characteristics to compare hospital LOS (days) and index hospitalization costs. Additionally, costs were stratified by LOS and CHADS
2
score.
Results:
Before matching, patients treated with warfarin were older and sicker compared to those treated with apixaban. After 1:1 PSM, 2,571 patients were matched in each cohort, and baseline characteristics were well-balanced. The mean CHADS
2
score was 2.4 for both cohorts. The mean (standard deviation [SD], median) hospital LOS (p<0.001) was significantly shorter for patients prescribed apixaban (5.1 [5.7], 3 days) compared to warfarin (5.7 [5.3], 4 days). Patients treated with apixaban had significantly lower hospitalization costs compared to those prescribed warfarin ($11,115 vs. $13,483; p<0.001), specifically among patients with LOS ≤7 days (0-2 days: $4,909 vs. $5,780, p=0.006; 3-7 days: $9,430 vs. $10,289, p=0.007). The results were consistent when stratified by CHADS
2
score; patients with CHADS
2
0-1 ($9,761 vs. $13,418) and CHADS
2
≥2 ($11,607 vs. $13,506) treated with apixaban incurred significantly lower costs compared to those treated with warfarin (p<0.001).
Conclusions:
NVAF patients treated with apixaban had significantly shorter hospital LOS and lower index hospitalization costs compared to those treated with warfarin. Costs remained significantly lower for apixaban patients across all CHADS
2
scores.
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Deitelzweig S, Evans M, Hillson E, Trocio J, Bruno A, Tan W, Lingohr-Smith M, Lin J. Abstract 221: Outcomes Associated with Warfarin Time in Therapeutic Range Among Nonvalvular Atrial Fibrillation Patients Treated in an Integrated Healthcare Delivery System in the U.S. Circ Cardiovasc Qual Outcomes 2015. [DOI: 10.1161/circoutcomes.8.suppl_2.221] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Background:
The efficacy of warfarin therapy for stroke risk reduction among nonvalvular atrial fibrillation (NVAF) patients is reduced when its time in therapeutic range (TTR) is not optimal. This study assessed differences in healthcare resource utilization and costs among NVAF patients with different warfarin TTRs in an integrated healthcare delivery system (IHDS) setting in the U.S.
Methods:
Patients with NVAF were identified from an electronic medical record database (1/1/2004-8/31/2013). Patients were required to have ≥6 international normalized prothrombin time ratio (INR) tests to ensure chronic warfarin therapy. The first INR test was defined as the index event with the corresponding date as the index date. The warfarin TTR of NVAF patients was determined by the modified Rosendaal method. NVAF patients were grouped into two cohorts, those with warfarin TTR <60% (Low TTR) and those with warfarin TTR ≥60% (High TTR). Demographics, clinical characteristics, healthcare resource utilization and costs were evaluated during a 12-month follow-up period. Multivariable regressions were used to assess the impact of different levels of warfarin TTRs on healthcare costs.
Results:
NVAF patients in the high TTR cohort (n=1,595) had an average warfarin TTR of 73%, while patients in the low TTR cohort (n=1,356) had an average warfarin TTR of 45%. Total all-cause healthcare resource utilization was greater among patients in the low TTR cohort vs. the high TTR cohort (number of all-cause healthcare encounters: 70.2 vs. 56.1, p<0.001). The mean number of all-cause inpatient admissions (0.64 vs. 0.33, p<0.001), hospital length-of-stay (3.3 vs. 1.6 days, p<0.001), and ICU length-of-stay (0.21 vs. 0.09, p=0.02) were significantly greater for the low TTR cohort in comparison to the high TTR cohort during the follow-up period. After adjusting for patient characteristics, total healthcare costs for all-cause and stroke-related healthcare costs were $2,398 (p<0.001) and $687 (p=0.02) higher, respectively for patients in the low TTR cohort vs. the high TTR cohort (Table).
Conclusions:
NVAF patients with low warfarin TTR, in comparison to those with high warfarin TTR, used more healthcare resources resulting in higher healthcare costs.
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Shafrin J, Bruno A, MacEwan JP, Campinha-Bacote A, Trocio J, Tan W, Romley JA. Abstract 150: Antithrombotic Use in Nonvalvular Atrial Fibrillation (NVAF): Alignment between Guidelines and Emerging Evidence with Clinician Prescribing Preferences. Circ Cardiovasc Qual Outcomes 2015. [DOI: 10.1161/circoutcomes.8.suppl_2.150] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Background:
2014 AHA/ACC/HRS guidelines recommend anticoagulation for NVAF patients with a CHA2DS2-VASc≥2, but do not endorse a specific therapy. Several published indirect treatment comparisons demonstrate similar stroke risk reduction but distinct differences for bleeding risk among novel oral anticoagulants (NOACs) in NVAF patients.
Objectives:
Survey physicians to determine how their preferences over antithrombotic therapies compare with current treatment guidelines and indirect treatment comparisons.
Methods:
An online survey was completed by 200 physicians who regularly treat patients with NVAF. Respondents answered 12 questions comparing two hypothetical antithrombotic treatments that varied across five attributes: stroke risk, major bleeding risk, inconvenience (i.e., regular INR blood-testing/dietary restrictions), dosing frequency and patient out-of-pocket (OOP) cost. Physician willingness to trade higher OOP cost for improvements in other attributes was estimated using a logistic regression. Based on these results, we calculated the share of prescriptions that would be written for apixaban, aspirin, dabigatran, rivaroxaban and warfarin using real-world US patient OOP costs.
Results:
Physicians were willing to trade an increase in monthly OOP cost of $38.21 (95% CI: $22.07-$54.34) for a 1 percentage point (absolute) decrease in annual stroke risk. Physicians also placed a positive value on less inconvenience ($34.46, 95% CI: $8.50-$60.41), and a 1 percentage point reduction in the risk of a major bleed ($14.44, 95% CI: $8.01-$20.88). Physicians did not have a significant willingness to pay to reduce dosing frequency from twice to once per day ($17.16; 95% CI: -0.08-$34.40). Cardiologists and cardiac electrophysiologists had higher willingness to pay for stroke risk reduction than general practitioners ($54.32 vs. $24.74, p<0.001). Based on these preferences, physicians would recommend NOACs to 77% of patients, with apixaban (32%) being the preferred NOAC.
Conclusions:
Similar to findings from indirect treatment comparison studies, physicians largely prefer NOACs_particularly apixaban_compared to warfarin or aspirin for stroke risk reduction in NVAF patients. Additional research is needed to determine why NOACs are underused in practice.
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Tan W, Gupta R, Clara E, Tang S, Hu J, Shabbir A, Lomanto D, O’Hare J, Anwar S, Huang C. Topic: Abdominal Wall Hernia — EHS classification and choice of technique. Hernia 2015; 19 Suppl 1:S206-7. [DOI: 10.1007/bf03355350] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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140
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Meisel Z, George S, Ahn S, Browne J, Bazin D, Brown BA, Carpino JF, Chung H, Cyburt RH, Estradé A, Famiano M, Gade A, Langer C, Matoš M, Mittig W, Montes F, Morrissey DJ, Pereira J, Schatz H, Schatz J, Scott M, Shapira D, Smith K, Stevens J, Tan W, Tarasov O, Towers S, Wimmer K, Winkelbauer JR, Yurkon J, Zegers RGT. Mass measurements demonstrate a strong N=28 shell gap in argon. PHYSICAL REVIEW LETTERS 2015; 114:022501. [PMID: 25635542 DOI: 10.1103/physrevlett.114.022501] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/27/2014] [Indexed: 06/04/2023]
Abstract
We present results from recent time-of-flight nuclear mass measurements at the National Superconducting Cyclotron Laboratory at Michigan State University. We report the first mass measurements of ^{48}Ar and ^{49}Ar and find atomic mass excesses of -22.28(31) MeV and -17.8(1.1) MeV, respectively. These masses provide strong evidence for the closed shell nature of neutron number N=28 in argon, which is therefore the lowest even-Z element exhibiting the N=28 closed shell. The resulting trend in binding-energy differences, which probes the strength of the N=28 shell, compares favorably with shell-model calculations in the sd-pf shell using SDPF-U and SDPF-MU Hamiltonians.
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141
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Gao L, Nadora DM, Phan S, Chernova M, Sun V, Preciado SMO, Jia W, Wang G, Mihm MC, Nelson JS, Tan W. Topical axitinib suppresses angiogenesis pathways induced by pulsed dye laser. Br J Dermatol 2014; 172:669-76. [PMID: 25283693 DOI: 10.1111/bjd.13439] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/22/2014] [Indexed: 12/01/2022]
Abstract
BACKGROUND The recurrence of port-wine stain (PWS) blood vessels by pulsed dye laser (PDL)-induced angiogenesis is a critical barrier that must be overcome to achieve a better therapeutic outcome. OBJECTIVES To determine whether PDL-induced angiogenesis can be suppressed by topical axitinib. METHODS The mRNA expression profiles of 86 angiogenic genes and phosphorylation levels of extracellular signal regulated kinases (ERKs), phosphorylated protein kinase B (AKT) and ribosomal protein S6 kinase (p70S6K) in rodent skin were examined with or without topical axitinib administration after PDL exposure. RESULTS The PDL-induced increased transcriptional levels of angiogenic genes peaked at days 3-7 post-PDL exposure. Topical application of 0·5% axitinib effectively suppressed the PDL-induced increase in mRNA levels of the examined angiogenic genes and activation of AKT, P70S6K and ERK from days 1 to 7 post-PDL exposure. After topical administration, axitinib penetrated into rodent skin to an approximate depth of 929·5 μm. CONCLUSIONS Topical application of 0·5% axitinib can systematically suppress the PDL-induced early stages of angiogenesis via inhibition of the AKT/mammalian target of rapamycin/p70S6K and Src homology 2 domain containing transforming protein-1/mitogen-activated protein kinase kinase/ERK pathway cascades.
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142
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Tan W, Zhang J, Liu Y, Yang G, Qing T, Lin J, Wei H. Treatment of tubal pregnancy using comprehensive interventional methods. CLIN EXP OBSTET GYN 2014. [DOI: 10.12891/ceog17932014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
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143
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Anand V, Ong T, Sahota O, Tan W, Moran C. P278: Patient characteristics and outcomes of concomitant fractures versus hip fracture alone: results from the Nottingham Hip Fracture Database. Eur Geriatr Med 2014. [DOI: 10.1016/s1878-7649(14)70449-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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144
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Ong T, Tan W, Sahota O, Marshall L. 85 * ARE FRACTURES AND A DIAGNOSIS OF OSTEOPOROSIS IN THE ELDERLY RELATED TO SOCIAL DEPRIVATION. Age Ageing 2014. [DOI: 10.1093/ageing/afu038.10] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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145
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Ong T, Tan W, Sahota O, Marshall L. 86 * THE RELATIONSHIP BETWEEN BODY MASS INDEX (BMI) AND FRACTURES IN THE ELDERLY. Age Ageing 2014. [DOI: 10.1093/ageing/afu038.11] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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146
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Tan W, Gan K, Xu L, Feng X, Zhang Q, Wang F, Zhang M. FRI0367 Celastrol Inhibits Osteoclastogenesis and Bone Resorption in Rankl-Induced Raw264.7 via Nf-κB and MAPK Pathways and Attenuates Bone Erosion in Collagen-Induced Arthritis. Ann Rheum Dis 2014. [DOI: 10.1136/annrheumdis-2014-eular.3939] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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147
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Tepper PG, Liu X, Melissa H, Mardekian J, Petkun W, Tan W, Singer DE. Abstract W P309: Hemorrhagic Risk Associated with Warfarin Initiation among Patients with Atrial Fibrillation: Assessment via a Large Insurance Database. Stroke 2014. [DOI: 10.1161/str.45.suppl_1.wp309] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Objective:
Studies suggest that warfarin may increase the risk of stroke in the first month after initiation among atrial fibrillation (AF) patients. This study assess whether there is a similar occurrence with major bleeds. We compared rates of major bleeds (hospitalizations for bleeding) in the first 30 days and >30 days after warfarin initiation between AF patients treated with warfarin and AF patients not on oral anticoagulants (OACs) in a large database.
Methods:
We identified adult AF patients via one inpatient or two outpatient AF diagnosis claims from the MarketScan insurance database with 95 million enrollees from 1/1/2008 to 3/31/2012. AF patients who started warfarin based on prescription claims, 1/1/2009-12/31/2010 and who didn’t use OACs 6-month prior were defined as warfarin initiators. Comparators were AF patients not on OACs from 7/1/2008-12/31/2010 and were 1:1 matched to warfarin initiators on age, sex and date of AF diagnosis. Patients were followed until major bleeding, discontinuation/switch of therapy, disenrollment, or end of study. We report crude rates of major bleeding and adjusted hazard ratios (HRs).
Result:
We studied 45,052 AF patients with an average follow-up of 1.9 years. Warfarin initiators and comparators were the same age (73.0) and sex (50% female) but had slightly lower CHADS2 scores (1.7 vs. 1.8) and ATRIA bleed scores (2.2 vs. 2.4). Compared to patients not on OACs, the rates of bleeding were higher among warfarin initiators during the first 30 days (adjusted HR=1.70) and after 30 days (adjusted HR=1.77) (Table) (p for interaction=0.86). The bleeding rate was higher in the first 30 days than after 30 days for the warfarin initiators, but this was also observed for the comparators (p=.02).
Conclusion:
Compared with AF patients not on OACs, warfarin appears to increase the risk of major bleeding similarly during the first 30 days and thereafter even though the rate was higher in the first 30 days for both warfarin initiators and comparators.
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148
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Tan W, Palazzo F, Pucci M, Cowan S, Evans N, Berger A, Chojnacki K, Rosato E. Does Neoadjuvant Chemoradiation Therapy (CRT) affect Perioperative Outcomes after Minimally Invasive Esophagectomy? A Single Institution Experience. J Surg Res 2014. [DOI: 10.1016/j.jss.2013.11.098] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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149
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Wang F, Xu L, Feng X, Tan W, Zhang M. AB0040 Il-29 induces production of il-6 and il-8 in rheumatoid arthritis synovial fibroblasts via jak/stat3 and mapk/nf-kb signaling pathways. Ann Rheum Dis 2014. [DOI: 10.1136/annrheumdis-2013-eular.2363] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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150
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Zhang M, Tan W, Zhang R, Tian Y, Gao H, Gao Z, Zhang N, Zhao J, Jia Y, Wang Y. Case Report Long-term survival of non-small-cell lung cancer patients with EGFR inhibitor treatment. GENETICS AND MOLECULAR RESEARCH 2014; 13:8657-60. [DOI: 10.4238/2014.october.27.5] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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