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Tramontano A, Palange P. Nutritional State and COPD: Effects on Dyspnoea and Exercise Tolerance. Nutrients 2023; 15:nu15071786. [PMID: 37049625 PMCID: PMC10096658 DOI: 10.3390/nu15071786] [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] [Received: 03/14/2023] [Revised: 03/30/2023] [Accepted: 04/03/2023] [Indexed: 04/08/2023] Open
Abstract
Chronic Obstructive Pulmonary Disease (COPD) is a disease that is spreading worldwide and is responsible for a huge number of deaths annually. It is characterized by progressive and often irreversible airflow obstruction, with a heterogeneous clinical manifestation based on disease severity. Along with pulmonary impairment, COPD patients display different grades of malnutrition that can be linked to a worsening of respiratory function and to a negative prognosis. Nutritional impairment seems to be related to a reduced exercise tolerance and to dyspnoea becoming a major determinant in patient-perceived quality of life. Many strategies have been proposed to limit the effects of malnutrition on disease progression, but there are still limited data available to determine which of them is the best option to manage COPD patients. The purpose of this review is to highlight the main aspects of COPD-related malnutrition and to underline the importance of poor nutritional state on muscle energetics, exercise tolerance and dyspnoea.
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Affiliation(s)
- Angela Tramontano
- Department of Public Health and Infectious Diseases, Sapienza University of Rome, 00185 Rome, Italy
- Respiratory and Critical Care, Policlinico Umberto I Hospital, 00161 Rome, Italy
| | - Paolo Palange
- Department of Public Health and Infectious Diseases, Sapienza University of Rome, 00185 Rome, Italy
- Respiratory and Critical Care, Policlinico Umberto I Hospital, 00161 Rome, Italy
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Iacovelli A, Oliva A, Siccardi G, Tramontano A, Pellegrino D, Mastroianni CM, Venditti M, Palange P. Risk factors and effect on mortality of superinfections in a newly established COVID-19 respiratory sub-intensive care unit at University Hospital in Rome. BMC Pulm Med 2023; 23:30. [PMID: 36670381 PMCID: PMC9854038 DOI: 10.1186/s12890-023-02315-9] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2022] [Accepted: 01/09/2023] [Indexed: 01/22/2023] Open
Abstract
BACKGROUND Little is known on the burden of co-infections and superinfections in a specific setting such as the respiratory COVID-19 sub-intensive care unit. This study aims to (i) assess the prevalence of concurrent and superinfections in a respiratory sub-intensive care unit, (ii) evaluate the risk factors for superinfections development and (iii) assess the impact of superinfections on in-hospital mortality. METHODS Single-center retrospective analysis of prospectively collected data including COVID-19 patients hospitalized in a newly established respiratory sub-intensive care unit managed by pneumologists which has been set up from September 2020 at a large (1200 beds) University Hospital in Rome. Inclusion criteria were: (i) COVID-19 respiratory failure and/or ARDS; (ii) hospitalization in respiratory sub-intensive care unit and (iii) age > 18 years. Survival was analyzed by Kaplan-Meier curves and the statistical significance of the differences between the two groups was assessed using the log-rank test. Multivariable logistic regression and Cox regression model were performed to tease out the independent predictors for superinfections' development and for mortality, respectively. RESULTS A total of 201 patients were included. The majority (106, 52%) presented severe COVID-19. Co-infections were 4 (1.9%), whereas 46 patients (22%) developed superinfections, mostly primary bloodstream infections and pneumonia. In 40.6% of cases, multi-drug resistant pathogens were detected, with carbapenem-resistant Acinetobacter baumannii (CR-Ab) isolated in 47%. Overall mortality rate was 30%. Prior (30-d) infection and exposure to antibiotic therapy were independent risk factors for superinfection development whereas the development of superinfections was an independent risk factors for in-hospital mortality. CR-Ab resulted independently associated with 14-d mortality. CONCLUSION In a COVID-19 respiratory sub-intensive care unit, superinfections were common and represented an independent predictor of mortality. CR-Ab infections occurred in almost half of patients and were associated with high mortality. Infection control rules and antimicrobial stewardship are crucial in this specific setting to limit the spread of multi-drug resistant organisms.
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Affiliation(s)
- Alessandra Iacovelli
- grid.7841.aDepartment of Public Health and Infectious Diseases, Sapienza University of Rome, Rome, Italy ,grid.417007.5Pulmonology Respiratory and Critical Care Unit, Policlinico Umberto I Hospital Rome, Rome, Italy
| | - Alessandra Oliva
- grid.7841.aDepartment of Public Health and Infectious Diseases, Sapienza University of Rome, Rome, Italy ,grid.417007.5Infective Diseases Unit, Policlinico Umberto I Hospital Rome, 00185 Rome, Lazio Italy
| | - Guido Siccardi
- grid.7841.aDepartment of Public Health and Infectious Diseases, Sapienza University of Rome, Rome, Italy ,grid.417007.5Infective Diseases Unit, Policlinico Umberto I Hospital Rome, 00185 Rome, Lazio Italy
| | - Angela Tramontano
- grid.7841.aDepartment of Public Health and Infectious Diseases, Sapienza University of Rome, Rome, Italy ,grid.417007.5Pulmonology Respiratory and Critical Care Unit, Policlinico Umberto I Hospital Rome, Rome, Italy
| | - Daniela Pellegrino
- grid.7841.aDepartment of Public Health and Infectious Diseases, Sapienza University of Rome, Rome, Italy ,grid.417007.5Pulmonology Respiratory and Critical Care Unit, Policlinico Umberto I Hospital Rome, Rome, Italy
| | - Claudio Maria Mastroianni
- grid.7841.aDepartment of Public Health and Infectious Diseases, Sapienza University of Rome, Rome, Italy ,grid.417007.5Infective Diseases Unit, Policlinico Umberto I Hospital Rome, 00185 Rome, Lazio Italy
| | - Mario Venditti
- grid.7841.aDepartment of Public Health and Infectious Diseases, Sapienza University of Rome, Rome, Italy ,grid.417007.5Infective Diseases Unit, Policlinico Umberto I Hospital Rome, 00185 Rome, Lazio Italy
| | - Paolo Palange
- grid.7841.aDepartment of Public Health and Infectious Diseases, Sapienza University of Rome, Rome, Italy ,grid.417007.5Pulmonology Respiratory and Critical Care Unit, Policlinico Umberto I Hospital Rome, Rome, Italy
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Iacovelli A, Nicolardi ML, Baccolini V, Olmati F, Attilia I, Baiocchi P, D'Antoni L, Menichini I, Migliarini A, Pellegrino D, Petroianni A, Piamonti D, Tramontano A, Villari P, Palange P. Conservative oxygen supplementation during Helmet CPAP therapy in patients with COVID-19 and respiratory failure: A pilot study. ERJ Open Res 2022; 9:00455-2022. [PMID: 37013111 PMCID: PMC9790093 DOI: 10.1183/23120541.00455-2022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2022] [Accepted: 12/08/2022] [Indexed: 12/24/2022] Open
Abstract
BackgroundRespiratory failure is a severe complication in COVID-19 pneumonia that, in addition to oxygen therapy, may require CPAP support. It has been postulated that COVID-19 lung injury may share some features with those observed in HALI. Thus, a correct target PaO2during oxygen supplementation may be crucial to protect the lung from further tissue damage. Aims of the study were: 1) to evaluate the effects of conservative oxygen supplementation during Helmet CPAP therapy on mortality and ICU admission in patients with COVID-19 and respiratory failure; 2) to evaluate the effect of conservative oxygen supplementation on new-onset organ failure and secondary pulmonary infections.MethodsThis was a single-center, historically controlled study of patients with severe respiratory failure due to COVID-19 pneumonia, receiving either conservative or non-conservative oxygen supplementation during Helmet CPAP. A cohort receiving conservative oxygen supplementation was studied prospectively in which oxygen supplementation was administered with a target PaO2<100 mmHg. Results of this cohort were compared with those of a cohort who had received liberal oxygen supplementation.ResultsSeventy-one patients were included in the conservative cohort and 75 in the non-conservative cohort. Mortality rate was lower in the conservative cohort (22.5%versus62.7%, p<0.001). Rates of ICU admission and new-onset rate organ failure were lower in conservative cohort (14.1%versus37.3%, p=0.001, and 9.9%versus45.3% p<0.001, respectively).ConclusionsIn patients with COVID-19 and severe respiratory failure, conservative oxygen supplementation during Helmet CPAP was associated to improved survival, lower ICU admission rate and less new-onset organ failure.
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Van Egeren D, Kohli K, Warner JL, Bedard PL, Riely G, Lepisto E, Schrag D, LeNoue-Newton M, Catalano P, Kehl KL, Michor F, Fiandalo M, Foti M, Khotskaya Y, Lee J, Peters N, Sweeney S, Abraham J, Brenton JD, Caldas C, Doherty G, Nimmervoll B, Pinilla K, Martin JE, Rueda OM, Sammut SJ, Silva D, Cao K, Heath AP, Li M, Lilly J, MacFarland S, Maris JM, Mason JL, Morgan AM, Resnick A, Welsh M, Zhu Y, Johnson B, Li Y, Sholl L, Beaudoin R, Biswas R, Cerami E, Cushing O, Dand D, Ducar M, Gusev A, Hahn WC, Haigis K, Hassett M, Janeway KA, Jänne P, Jawale A, Johnson J, Kehl KL, Kumari P, Laucks V, Lepisto E, Lindeman N, Lindsay J, Lueders A, Macconaill L, Manam M, Mazor T, Miller D, Newcomb A, Orechia J, Ovalle A, Postle A, Quinn D, Reardon B, Rollins B, Shivdasani P, Tramontano A, Van Allen E, Van Nostrand SC, Bell J, Datto MB, Green M, Hubbard C, McCall SJ, Mettu NB, Strickler JH, Andre F, Besse B, Deloger M, Dogan S, Italiano A, Loriot Y, Ludovic L, Michels S, Scoazec J, Tran-Dien A, Vassal G, Freeman CE, Hsiao SJ, Ingham M, Pang J, Rabadan R, Roman LC, Carvajal R, DuBois R, Arcila ME, Benayed R, Berger MF, Bhuiya M, Brannon AR, Brown S, Chakravarty D, Chu C, de Bruijn I, Galle J, Gao J, Gardos S, Gross B, Kundra R, Kung AL, Ladanyi M, Lavery JA, Li X, Lisman A, Mastrogiacomo B, McCarthy C, Nichols C, Ochoa A, Panageas KS, Philip J, Pillai S, Riely GJ, Rizvi H, Rudolph J, Sawyers CL, Schrag D, Schultz N, Schwartz J, Sheridan R, Solit D, Wang A, Wilson M, Zehir A, Zhang H, Zhao G, Ahmed L, Bedard PL, Bruce JP, Chow H, Cooke S, Del Rossi S, Felicen S, Hakgor S, Jagannathan P, Kamel-Reid S, Krishna G, Leighl N, Lu Z, Nguyen A, Oldfield L, Plagianakos D, Pugh TJ, Rizvi A, Sabatini P, Shah E, Singaravelan N, Siu L, Srivastava G, Stickle N, Stockley T, Tang M, Virtaenen C, Watt S, Yu C, Bernard B, Bifulco C, Cramer JL, Lee S, Piening B, Reynolds S, Slagel J, Tittel P, Urba W, VanCampen J, Weerasinghe R, Acebedo A, Guinney J, Guo X, Hunter-Zinck H, Yu T, Dang K, Anagnostou V, Baras A, Brahmer J, Gocke C, Scharpf RB, Tao J, Velculescu VE, Alexander S, Bailey N, Gold P, Bierkens M, de Graaf J, Hudeček J, Meijer GA, Monkhorst K, Samsom KG, Sanders J, Sonke G, ten Hoeve J, van de Velde T, van den Berg J, Voest E, Steinhardt G, Kadri S, Pankhuri W, Wang P, Segal J, Moung C, Espinosa-Mendez C, Martell HJ, Onodera C, Quintanar Alfaro A, Sweet-Cordero EA, Talevich E, Turski M, Van’t Veer L, Wren A, Aguilar S, Dienstmann R, Mancuso F, Nuciforo P, Tabernero J, Viaplana C, Vivancos A, Anderson I, Chaugai S, Coco J, Fabbri D, Johnson D, Jones L, Li X, Lovly C, Mishra S, Mittendorf K, Wen L, Yang YJ, Ye C, Holt M, LeNoue-Newton ML, Micheel CM, Park BH, Rubinstein SM, Stricker T, Wang L, Warner J, Guan M, Jin G, Liu L, Topaloglu U, Urtis C, Zhang W, D’Eletto M, Hutchison S, Longtine J, Walther Z. Genomic analysis of early-stage lung cancer reveals a role for TP53 mutations in distant metastasis. Sci Rep 2022; 12:19055. [PMID: 36351964 PMCID: PMC9646734 DOI: 10.1038/s41598-022-21448-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2022] [Accepted: 09/27/2022] [Indexed: 11/10/2022] Open
Abstract
Patients with non-small cell lung cancer (NSCLC) who have distant metastases have a poor prognosis. To determine which genomic factors of the primary tumor are associated with metastasis, we analyzed data from 759 patients originally diagnosed with stage I-III NSCLC as part of the AACR Project GENIE Biopharma Collaborative consortium. We found that TP53 mutations were significantly associated with the development of new distant metastases. TP53 mutations were also more prevalent in patients with a history of smoking, suggesting that these patients may be at increased risk for distant metastasis. Our results suggest that additional investigation of the optimal management of patients with early-stage NSCLC harboring TP53 mutations at diagnosis is warranted in light of their higher likelihood of developing new distant metastases.
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Affiliation(s)
- Debra Van Egeren
- grid.65499.370000 0001 2106 9910Department of Data Science, Dana-Farber Cancer Institute, Boston, MA USA ,grid.38142.3c000000041936754XDepartment of Systems Biology, Harvard Medical School, Boston, MA USA ,grid.2515.30000 0004 0378 8438Stem Cell Program, Boston Children’s Hospital, Boston, MA USA ,grid.5386.8000000041936877XDepartment of Medicine, Weill Cornell Medicine, New York, NY USA
| | - Khushi Kohli
- grid.65499.370000 0001 2106 9910Department of Data Science, Dana-Farber Cancer Institute, Boston, MA USA
| | - Jeremy L. Warner
- grid.152326.10000 0001 2264 7217Department of Medicine, Vanderbilt University, Nashville, TN USA ,grid.152326.10000 0001 2264 7217Department of Biomedical Informatics, Vanderbilt University, Nashville, TN USA
| | - Philippe L. Bedard
- grid.17063.330000 0001 2157 2938Department of Medicine, University of Toronto, Toronto, ON Canada
| | - Gregory Riely
- grid.51462.340000 0001 2171 9952Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY USA
| | - Eva Lepisto
- grid.65499.370000 0001 2106 9910Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA USA ,grid.429426.f0000 0000 9350 5788Present Address: Multiple Myeloma Research Foundation, Norwalk, CT USA
| | - Deborah Schrag
- grid.51462.340000 0001 2171 9952Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY USA
| | - Michele LeNoue-Newton
- grid.412807.80000 0004 1936 9916Vanderbilt-Ingram Cancer Center, Vanderbilt University Medical Center, Nashville, TN USA
| | - Paul Catalano
- grid.65499.370000 0001 2106 9910Department of Data Science, Dana-Farber Cancer Institute, Boston, MA USA
| | - Kenneth L. Kehl
- grid.65499.370000 0001 2106 9910Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA USA
| | - Franziska Michor
- grid.65499.370000 0001 2106 9910Department of Data Science, Dana-Farber Cancer Institute, Boston, MA USA ,grid.38142.3c000000041936754XDepartment of Stem Cell and Regenerative Biology, Harvard University, Cambridge, MA USA ,grid.66859.340000 0004 0546 1623Broad Institute of MIT and Harvard, Cambridge, MA USA ,grid.38142.3c000000041936754XDepartment of Biostatistics, Harvard T.H. Chan School of Public Health, Boston, MA USA ,grid.65499.370000 0001 2106 9910The Center for Cancer Evolution, Dana-Farber Cancer Institute, Boston, MA USA ,grid.38142.3c000000041936754XThe Ludwig Center at Harvard, Boston, MA USA
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Bian JJ, Cronin C, Tramontano A, Schrag D, Osarogiagbon RU, Dizon DS, Wong SL, Hazard-Jenkins HW, Hassett MJ. Severe symptom reporting in medical oncology patients at community cancer centers assessed through eSyM. J Clin Oncol 2022. [DOI: 10.1200/jco.2022.40.28_suppl.242] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
242 Background: Among cancer patients (pts) treated with chemotherapy, electronic patient reported outcome (ePRO)-based symptom management programs at quaternary cancer care institutions have improved outcomes. Uptake of ePRO programs in the real-world setting, where less is known about severe symptom reporting, is often complicated by perceptions of increased workload and erroneous severe symptom reporting. The SIMPRO study group, which includes 6 diverse health systems, are implementing an integrated electronic symptom management (eSyM) program to address these challenges. Methods: SIMPRO sites deployed the Epic-embedded eSyM program for thoracic (THOR), gastrointestinal (GI), and gynecologic (GYN) medical oncology (MO) pts, who received PRO-CTCAE-based questionnaires via the patient portal twice weekly for 6 months after starting a new chemotherapy regimen. Symptoms were scored 0 (none), 1 (mild), 2 (moderate), and 3 (severe) and automatically transmitted to care teams within Epic. The distribution and predictors of severe symptom reporting were assessed using descriptive statistics and logistic regression modeling. Results: From September 2019 – March 2022, 47% of eligible pts (2679/5716) submitted 27,062 questionnaires (median age of 67 years, 55% female, 78% white, 53% married, and 49% retired). 17% of eSyM questionnaires included at least 1 severe symptom (15% for GI, 14% for GYN, and 18% for THOR). Table displays the frequencies of all symptoms reported with fatigue, general pain, and constipation being most common. Among respondents, older, black, and employed pts reported significantly fewer severe symptoms (p < 0.03); cancer type was not associated with a greater likelihood of severe symptom reporting. Conclusions: Only approximately 1 of every 6 eSyM responses included a severe symptom, suggesting that routine monitoring in the real-world could help identify patients experiencing bothersome symptoms with minimal disruption to clinical workload. The mix of symptoms commonly reported as severe are challenging to treat with medications alone, arguing that symptom management strategies should provide multidisciplinary supportive care. Interventions that aide both patients and care teams and are embedded within eSyM or Epic could help address these symptoms without overburdening care teams. Clinical trial information: NCT03850912. [Table: see text]
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Affiliation(s)
| | | | | | | | | | - Don S. Dizon
- Lifespan Cancer Institute and Brown University, Providence, RI
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Cronin C, Tramontano A, Schrag D, Wong SL, Osarogiagbon RU, Hazard-Jenkins HW, Dizon DS, Bian JJ, Hassett MJ. Evaluating the use of web versus mobile devices for ePRO reporting and severe symptom responses at 6 cancer centers. J Clin Oncol 2022. [DOI: 10.1200/jco.2022.40.28_suppl.241] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
241 Background: Monitoring electronic patient-reported outcomes (ePROs) improves quality of life, reduces acute care, and extends survival in cancer patients. Different modalities for collecting ePROs exist. Many efforts focus on mobile apps, but optimal methods for reporting are not well established. We sought to determine whether patient engagement and symptom reporting patterns differed by submission modality. Methods: Through the SIMPRO Consortium, ePRO questionnaires (eSyM) were collected from medical oncology (MO) and surgical (SUR) patients at six health systems between September 2019-March 2022. Questionnaires assessing 12 symptoms plus functional status and overall wellbeing were sent 2-3 times per week via patient portal and made accessible through two modalities: a web platform or mobile device app (mobile). Patterns and predictors of reporting modality were ascertained using descriptive statistics and logistic regression. Results: In total, 6460 patients submitted 47,736 questionnaires: 74% via web and 26% via mobile. Of 2679 MO responders, 53% reported via web, 0.7% via mobile only, and 43% via both. Older, black, and unemployed MO patients were more likely to report via web only. Of 3781 SUR responders, 55% reported via web, 0.3% via mobile only, and 45% via both. Older and unemployed SUR patients were more likely to report via web only; disabled SUR patients were less likely to use web only. Patients utilizing both modalities reported significantly more moderate-severe symptoms than web only responders [Table]. Conclusions: Very few patients reported via mobile only, which was unexpected in the context of trends toward mobile-based patient engagement. Moderate-severe symptoms were reported more frequently by dual-modality responders. Patients with access to both modalities may be more likely to report symptoms in real-time compared to web-users who may delay reporting until they have access to a device. The resulting difference between web and mobile reporting modalities could be due to age, race, and employment; future studies should assess other factors, such as locality and cellular coverage. This work emphasizes the importance of deploying ePROs via multiple modalities to maximize accessibility and response rates. Clinical trial information: NCT03850912. [Table: see text]
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Affiliation(s)
| | | | | | | | | | | | - Don S. Dizon
- Lifespan Cancer Institute and Brown University, Providence, RI
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Wong SL, Hazard-Jenkins HW, Schrag D, Osarogiagbon RU, Dizon DS, Bian JJ, Cronin C, Tramontano A, Hassett MJ. Severe symptom reporting in surgical patients assessed through an EHR-integrated ePRO questionnaire at 6 cancer centers. J Clin Oncol 2022. [DOI: 10.1200/jco.2022.40.28_suppl.243] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
243 Background: Patients (pts) undergoing surgery for suspected malignancy may experience burdensome post-operative symptoms which can compromise outcomes and necessitate acute care. In prior randomized controlled trials at academic medical centers, patient-reported outcome (PRO)-based symptom management solutions improved clinical outcomes. Attempts to generalize this approach to real-world surgical pts have been challenged by perceptions that severe symptoms rarely occur, responding to severe symptoms can be burdensome, and uncertainty about which symptoms are likely to be severe and need interventions. Methods: Six US-based healthcare systems deployed eSyM, an EHR-integrated symptom management program. Pts undergoing surgery for suspected or confirmed thoracic (THOR), gastrointestinal (GI), and gynecologic (GYN) malignancies received automated questionnaires via MyChart portal 1-3 times weekly for up to 3 months after discharge. Questionnaires based on the PRO-CTCAE included 10 required and 20 optional symptoms, all scored as 0 (no symptoms), 1 (mild), 2 (moderate), or 3 (severe). Additional questions assessed functional status, overall wellbeing, wound discharge, and wound redness. Frequency and predictors of severe reporting were assessed using descriptive statistics and logistic regression modeling. Results: 21,012 surgical eSyM questionnaires were submitted between October 2019 - March 2022 by 3,781 unique pts (median age 63 years, 66.9% female, 92.1% white, 57.9% married, and 37.5% retired). 17% of questionnaires (16% of GI, 14% of GYN, and 21% of THOR) included at least 1 severe symptom. Frequencies of severe symptom reporting appear in Table with physical function impairment, general pain, and fatigue as the top three. Severe symptoms were more likely to be reported by younger, female, or unemployed pts(p < 0.01). In comparison to GI pts, GYN pts reported fewer and THOR pts reported more severe symptoms (p < 0.03). Conclusions: A meaningful minority of pts reported severe symptoms, suggesting that symptom monitoring could benefit pts without over-taxing clinicians. There were few strong patient-level predictors of severe symptoms, arguing that population surveillance may be preferable to targeted surveillance. Interventions are needed to address common severe symptoms and future studies should define most effective mitigation strategies for these symptoms. Clinical trial information: NCT03850912. [Table: see text]
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Affiliation(s)
| | | | | | | | - Don S. Dizon
- Lifespan Cancer Institute and Brown University, Providence, RI
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Hassett MJ, Tramontano A, Cronin C, Osarogiagbon RU, Wong SL, Bian JJ, Hazard HW, Dizon DS, Schrag D. Barriers to web-based symptom management systems (web-SyMS). J Clin Oncol 2021. [DOI: 10.1200/jco.2021.39.15_suppl.6545] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
6545 Background: Web-SyMS can reduce the burdens of cancer and its treatment. While patients frequently express willingness to use these systems, only a subset actively engages with them. Some patients may lack the tools and confidence needed to benefit from web-SyMS. We sought to characterize these barriers among community-based cancer patients receiving care across six diverse healthcare systems. Methods: We surveyed patients receiving chemotherapy at three healthcare systems (Baptist, TN; Maine Medical, ME; Dana-Farber, MA) and patients recovering from cancer-directed surgery at three healthcare systems (West Virginia University, WV; Dartmouth-Hitchcock, NH; Lifespan, RI). Surveys were conducted as part of a pre-implementation analysis of eSyM – an EHR-embedded web-SyMS that collects, tracks, and manages patient reported outcomes during cancer therapy. Results: Among 563 respondents, access to tech devices (i.e., tablet, computer, or smartphone) was high: 78% reported access to ≥2 devices and only 5% reported access to no devices. However, confidence using tech devices to accomplish online tasks varied: 45% very confident, 38% somewhat confident, 11% little-no confidence. Compared to medical oncology patients, surgery patients were more likely to report being very confident (57% vs. 31%). There were significant differences based on patients’ self-reported tech confidence (Chi-square P<.05 for all values in the table). Conclusions: Low self-reported tech confidence may identify patients who are at high risk for experiencing the burdens of cancer but may be less likely to benefit from web-SyMS. Addressing this barrier is critical to improving outcomes and addressing disparities. Clinical trial information: NCT03850912. [Table: see text]
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Affiliation(s)
| | | | | | | | | | | | | | - Don S. Dizon
- Lifespan Cancer Institute and Brown University, Providence, RI
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Schrag D, Uno H, Zattra O, Tramontano A, Rosovsky RPG, Rutherford C, Sanfilippo KM, Villano JL, Drescher MR, Jayaram NH, Holmes CE, Feldman LE, Cronin C, Basch EM, Weiss A, Connors J. Patient-reported benefits and burdens of direct oral-anticoagulants (DOACs) and low molecular weight heparins (LMWHs): The CANVAS pragmatic randomized trial (AFT-28). J Clin Oncol 2021. [DOI: 10.1200/jco.2021.39.15_suppl.12112] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
12112 Background: Previous randomized trials in cancer patients suggest that DOACs are non-inferior to LMWHs for preventing recurrent venous thromboembolism (VTE). However, patients’ perspectives have not been reported. Objective: CANVAS compared LMWHs to DOACs for preventing recurrent VTE in cancer patients. Key 2° endpoints were: 1) health-related quality of life (QOL); and, 2) treatment satisfaction. Methods: CANVAS was an unblinded hybrid comparative effectiveness non-inferiority trial. Between 12/2016 and 4/2020, 671 participants were randomized and followed for 6-months. Patients were assigned 1:1 to receive either a DOAC or a LMWH. Physicians could select any DOAC or LMWH at standard dosing, and patients assigned to LMWH were allowed to transition to Warfarin. Patients from 67 US practices with any invasive solid tumor, lymphoma, multiple myeloma or CLL and a diagnosis of VTE within 30 days of enrollment were eligible. The 1° analysis was conducted in the randomized modified intent-to-treat population, (all subjects who received assigned treatment). Key 2° endpoints were to establish: 1) non-inferior change in HR-QOL; 2) greater perception of benefit; and 3) lower perception of burden for participants receiving DOACs versus LMWHs. Participants reported QOL at 0, 3 and 6 months on the SF-12 survey. At 3 and 6 months, they also reported satisfaction via the Anti-Clot Treatment Scale (ACTS), which includes a burden and a benefit scale. A 2-point change was pre-specified as significant. Results: Neither QOL nor patients’ perceptions of treatment benefits differed between groups. However, patients on DOACs reported lower treatment burden compared to those assigned LMWHs. Conclusions: Among adult cancer patients with VTE, the use of a DOAC compared with a LMWH resulted in no difference in QOL but higher patient-reported satisfaction stemming from decreased perception of the burden of treatment. Clinical trial information: NCT02744092. [Table: see text]
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Affiliation(s)
| | - Hajime Uno
- Dana-Farber Cancer Institute, Boston, MA
| | | | | | | | | | | | | | | | | | | | | | | | - Ethan M. Basch
- UNC Lineberger Comprehensive Cancer Center, Chapel Hill, NC
| | - Anna Weiss
- Dana-Farber Cancer Institute, Boston, MA
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Palazzo L, Sheehan D, Tramontano A, Kong CY. Abstract B087: Disparities and trends in genetic testing and erlotinib treatment among metastatic non-small cell lung cancer patients. Cancer Epidemiol Biomarkers Prev 2020. [DOI: 10.1158/1538-7755.disp18-b087] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Abstract
Despite reports of socioeconomic disparities in rates of genetic testing and targeted therapy treatment for metastatic non-small cell lung cancer (NSCLC), little is known about whether and how such disparities change over time in the context of the rapidly evolving field of precision cancer treatment. We performed a retrospective analysis to identify disparities and trends in genetic testing and treatment with erlotinib. Using the Surveillance, Epidemiology, and End Results (SEER)-Medicare database, we identified 9,900 stage 4 NSCLC patients diagnosed in 2007-2011 at age 65 or older and used procedural codes to identify receipt of a genetic test and Medicare Part D records to identify erlotinib treatment. We performed multivariate logistic regression analyses to identify patient factors associated with differences in odds of receiving a genetic test and in receiving erlotinib treatment, and to assess temporal trends in these differences with respect to diagnosis year. We considered socioeconomic, clinical, and demographic patient factors, as well as whether any gaps due to these factors grew, narrowed, or stayed the same. We found that patients were more likely to receive genetic testing if they were under age 75 at diagnosis (odds ratio [OR]=1.58, 95% confidence interval [CI] 1.23 to 2.05) or had adenocarcinoma (OR=1.58, 95% CI 1.20 to 2.09); odds also grew with later year of diagnosis (OR=2.14, 95% CI 1.78 to 2.56). Patients with low income level were less likely to receive genetic testing (OR=0.72, 95% CI 0.53 to 0.99). Only the odds associated with being under 75 at diagnosis showed change (a decrease) over time (OR=0.93, 95% CI 0.87 to 0.99). Erlotinib treatment was associated with race (OR=0.58, 95% CI 0.36 to 0.94 for black vs. white; OR=2.44, 95% CI 1.54 to 3.88 for Asian vs. white), was more likely among female patients (OR=1.38, 95% CI 1.19 to 1.59) and those with adenocarcinoma (OR=1.19, 95% CI 1.03 to 1.38), and was less likely among low-income patients (OR=0.79, 95% CI 0.67 to 0.93). All of these associations persisted throughout the study time period. Our results demonstrate that low socioeconomic status is the only nonclinical patient factor that independently predicts lower rates of both genetic testing and erlotinib treatment, and this disparity has remained steady over time. This finding suggests that more attention to closing this socioeconomic gap is needed as precision cancer treatments continue to be developed and refined.
Citation Format: Lauren Palazzo, Deirdre Sheehan, Angela Tramontano, Chung Yin Kong. Disparities and trends in genetic testing and erlotinib treatment among metastatic non-small cell lung cancer patients [abstract]. In: Proceedings of the Eleventh AACR Conference on the Science of Cancer Health Disparities in Racial/Ethnic Minorities and the Medically Underserved; 2018 Nov 2-5; New Orleans, LA. Philadelphia (PA): AACR; Cancer Epidemiol Biomarkers Prev 2020;29(6 Suppl):Abstract nr B087.
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Affiliation(s)
- Lauren Palazzo
- Massachusetts General Hospital Institute for Technology Assessment, Boston, MA
| | - Deirdre Sheehan
- Massachusetts General Hospital Institute for Technology Assessment, Boston, MA
| | - Angela Tramontano
- Massachusetts General Hospital Institute for Technology Assessment, Boston, MA
| | - Chung Yin Kong
- Massachusetts General Hospital Institute for Technology Assessment, Boston, MA
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11
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Hassett MJ, Tramontano A, Zhang Z, Kehl KL, Schrag D. Survival associated with mutations in SWI/SNF chromatin remodeling complex genes. J Clin Oncol 2020. [DOI: 10.1200/jco.2020.38.15_suppl.3643] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
3643 Background: The SWI/SNF (SWitch/Sucrose NonFermentable) chromatin remodeling complex (CRC) - a combinatorial assembly of products from multiple genes - alters histone/DNA interactions and thereby impacts transcription, DNA replication/repair, and cell division. Studies suggest that over 20% of human cancers contain mutations in at least one SWI/SNF gene, implying that it is the most highly mutated CRC in human cancer. To address existing knowledge gaps, we sought to evaluate the association between SWI/SNF mutations and overall survival (OS). Methods: We identified adult cancer patients who consented to have OncoPanel testing (Dana-Farber/Brigham & Women’s Hospital’s next generation sequencing platform) from June 2013-August 2019. These data were merged with institutional electronic health records and National Death Index vital status. We determined mutation frequency and co-occurrence for the nine SWI/SNF genes included in OncoPanel (ARID1A, ARID1B, ARID2, BCL11B, PBRM1, SMARCA4, SMARCB1, SMARCE1, and SS18). We assessed the association between mutation and OS (from time of OncoPanel testing) for cancers with at least 500 analyzed and 20 mutated cases, controlling for age and TP53 status. Exploratory analyses were conducted using cBioPortal and SAS (no multiple comparison adjustment). Results: Among 25,434 samples from 24,648 patients, a mutation in at least one evaluated SWI/SNF gene was identified in 26% of cases (ARID1A 10.5%, ARID1B 7.2%, SMARCA4 5.5%, PBRM1 4.9%, ARID2 4.8%, BCL11B 3.5%, SMARCE1 1.1%, SMARCB1 1.0%, and SS18 0.7%). The most frequently mutated cancers included small bowel (52%), endometrial (49%), ampullary (48%) and bladder (45%). Co-occurrence was common (30 of 36 potential gene-pairs), with the largest associations (odds ratio; all P < .05) seen for SMARCB1:BCL11B (4.19), ARID1B:BCL11B (3.87), ARID2:BCL11B (3.85), and SMARCA4:BCL11B (3.78). Associations between having a mutation and OS were seen for the following cancers/genes (odds ratio; all P < .05): ARID1A (colorectal 0.72, pancreatic 1.46), ARID1B (melanoma 0.32), SMARCA4 (esophagogastric 1.48, non-small cell lung 1.89, ovarian 0.43), SMARCB1 (non-small cell lung 2.04), and SS18 (soft tissue sarcoma 2.06). Conclusions: Mutations in SWI/SNF genes are widespread, with mutation rates varying by cancer type. Co-occurrence was common, especially with BCL11B. Associations with OS were both favorable and unfavorable, with variability seen by gene and cancer type. Future research should explore the mechanisms by which mutations in SWI/SNF genes influence treatment response/OS.
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Affiliation(s)
| | | | - Zilu Zhang
- F. Hoffmann-La Roche Ltd., Shanghai, China
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12
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Withington J, Tramontano A, Schrag D. Medicaid expansion and trends in cancer stage at diagnosis. J Clin Oncol 2020. [DOI: 10.1200/jco.2020.38.15_suppl.e14129] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
e14129 Background: Cancer stage distribution offers an early window into the effect of the ACA’s 2014 Medicaid expansion. If Medicaid expansion enabled uninsured adults to access preventive care, then the proportion of cancers diagnosed at early stage should be higher in states that adopted it. Methods: Patient level data were retrieved from SEER-18, New York and Texas cancer registries from January 2010 to December 2015, for eight common tumor types; including N = 2,493,589 (breast, cervical, colorectal, prostate, lung) screen detectable and N = 369,203 (testis, kidney and uterine corpus) not detected by routine screening. Patients were categorized by residence in states that were: 1) Non-expanders; 2) Expanders - income eligibility thresholds increased from 0% to 138% of the federal poverty level (FPL) in 2014; and 3) Pre-Expanders, with pre-2014 eligibility thresholds > 70% of FPL. Stage distributions were compared before and after January 2014, categorized by AJCC stage and using ordinal stage equivalent (OSE) which assigns a numeric score based on AJCC stage. Difference in difference in difference (D3) methods compared patients ≥65 versus < 65, and screen-detectable versus not. Multivariable logistic regression was used to adjust for variation in age, sex, race, ethnicity and tumor site across states. Results: No differences in stage distribution were observed across the three categories of state. (Table). D3 analysis revealed no difference between trends in the over 65s, or for screen-detectable cancers. Adjustment for age, sex, race, ethnicity and tumor site made no significant difference to these results. Conclusions: States’ Medicaid expansion status in 2014 was not associated with a significant difference in early stage diagnoses for adults with cancer diagnosed before age 65. Obstacles to early cancer detection other than financial access must be addressed to improve population-level outcomes. [Table: see text]
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13
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Fong ZV, Chang DC, Hur C, Jin G, Tramontano A, Sell NM, Warshaw AL, Fernandez-Del Castillo C, Ferrone CR, Lillemoe KD, Qadan M. Variation in long-term oncologic outcomes by type of cancer center accreditation: An analysis of a SEER-Medicare population with pancreatic cancer. Am J Surg 2020; 220:29-34. [PMID: 32265013 DOI: 10.1016/j.amjsurg.2020.03.035] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [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: 03/23/2020] [Revised: 03/26/2020] [Accepted: 03/27/2020] [Indexed: 11/24/2022]
Abstract
BACKGROUND Cancer center accreditation is designed to identify centers that provide high-quality cancer care. This also guides patients and referring physicians towards centers of excellence for specialized care. We sought to examine if cancer center accreditation was associated with improved long-term oncologic outcomes in patients with pancreatic adenocarcinoma. METHODS Using the SEER-Medicare database, we identified patients who underwent pancreatectomy for pancreatic adenocarcinoma from 1996 to 2013. Hospitals were categorized into three groups: National Cancer Institute-designated (NCI-designated) centers, Commission on Cancer (CoC)-accredited centers, and "non-accredited" (NA) centers. Multilevel mixed-effects models were used to calculate adjusted examined lymph nodes, disease-specific survival (DSS), and overall survival (OS). RESULTS We identified 5,118 patients who underwent pancreatectomy at 632 hospitals (41.0% NA, 49.6% CoC, 9.4% NCI). NCI-designated centers had a greater median number of lymph nodes examined compared with CoC-accredited or NA centers (14 vs. 10 vs. 11.0 nodes, respectively; p < 0.001). Patients treated at NCI centers had a higher 5-year DSS compared to those treated at CoC or NA centers (31.2% vs. 23.6% vs. 23.0%, respectively; p < 0.001). Finally, patients treated at NCI centers had a higher 5-year OS compared to those treated at CoC or NA centers (23.5% vs. 18.9% vs. 17.9%, respectively; p < 0.001). The associations held true when adjusted analyses were performed. CONCLUSION Patients with resected pancreatic cancer treated at NCI-designated centers were associated with improved long-term oncologic outcomes. There was no difference between CoC-accredited centers compared with NA centers. Meticulous validation of accreditation is warranted globally prior to implementation.
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Affiliation(s)
- Zhi Ven Fong
- Department of Surgery, Massachusetts General Hospital, Boston, MA, USA
| | - David C Chang
- Department of Surgery, Massachusetts General Hospital, Boston, MA, USA
| | - Chin Hur
- Institute for Technology Assessment, Massachusetts General Hospital, Boston, MA, USA
| | - Ginger Jin
- Department of Surgery, Massachusetts General Hospital, Boston, MA, USA
| | - Angela Tramontano
- Institute for Technology Assessment, Massachusetts General Hospital, Boston, MA, USA
| | - Naomi M Sell
- Department of Surgery, Massachusetts General Hospital, Boston, MA, USA
| | - Andrew L Warshaw
- Department of Surgery, Massachusetts General Hospital, Boston, MA, USA
| | | | | | - Keith D Lillemoe
- Department of Surgery, Massachusetts General Hospital, Boston, MA, USA
| | - Motaz Qadan
- Department of Surgery, Massachusetts General Hospital, Boston, MA, USA.
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14
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Chu JN, Choi J, Ostvar S, Torchia JA, Reynolds KL, Tramontano A, Gainor JF, Chung DC, Clark JW, Hur C. Cost-effectiveness of immune checkpoint inhibitors for microsatellite instability-high/mismatch repair-deficient metastatic colorectal cancer. Cancer 2019; 125:278-289. [PMID: 30343509 PMCID: PMC10664966 DOI: 10.1002/cncr.31795] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [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] [Received: 04/14/2018] [Revised: 06/18/2018] [Accepted: 07/30/2018] [Indexed: 01/08/2023]
Abstract
BACKGROUND Patients with microsatellite instability-high (MSI-H)/mismatch repair-deficient (dMMR) metastatic colorectal cancer (mCRC) show a significant response to checkpoint inhibitor therapies, but the economic impact of these therapies is unknown. A decision analytic model was used to explore the effectiveness and cost burden of MSI-H/dMMR mCRC treatment. METHODS The treatment of hypothetical patients with MSI-H/dMMR mCRC was simulated in 2 treatment scenarios: a third-line treatment and an exploratory first-line treatment. The treatments compared were nivolumab, ipilimumab and nivolumab, trifluridine and tipiracil (third-line treatment), and mFOLFOX6 and cetuximab (first-line treatment). Disease progression, drug toxicity, and survival rates were based on the CheckMate 142, study of TAS-102 in patients with metastatic colorectal cancer refractory to standard chemotherapies (RECOURSE), and Cancer and Leukemia Group B/Southwest Oncology Group 80405 trials. The analyzed outcomes included survival (life-years), quality-adjusted life-years (QALYs), and incremental cost-effectiveness ratios (ICERs). RESULTS Ipilimumab with nivolumab was the most effective strategy (10.69 life-years and 9.25 QALYs for the third line; 10.69 life-years and 9.44 QALYs for the first line) in comparison with nivolumab (8.21 life-years and 6.76 QALYs for the third line; 8.21 life-years and 7.00 QALYs for the first line), trifluridine and tipiracil (0.74 life-years and 0.07 QALYs), and mFOLFOX6 and cetuximab (2.72 life-years and 1.63 QALYs). However, neither checkpoint inhibitor therapy was cost-effective in comparison with trifluridine and tipiracil (nivolumab ICER, $153,000; ipilimumab and nivolumab ICER, $162,700) or mFOLFOX6 and cetuximab (nivolumab ICER, $150,700; ipilimumab and nivolumab ICER, $158,700). CONCLUSIONS This modeling analysis found that both single and dual checkpoint blockade could be significantly more effective for MSI-H/dMMR mCRC than chemotherapy, but they were not cost-effective, largely because of drug costs. Decreases in drug pricing and/or the duration of maintenance nivolumab could make ipilimumab and nivolumab cost-effective. Prospective clinical trials should be performed to explore the optimal duration of maintenance nivolumab.
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Affiliation(s)
- Jacqueline N. Chu
- Department of Medicine, Massachusetts General Hospital, Boston, Massachusetts
| | - Jin Choi
- Institute for Technology Assessment, Massachusetts General Hospital, Boston, Massachusetts
| | - Sassan Ostvar
- Institute for Technology Assessment, Massachusetts General Hospital, Boston, Massachusetts
| | | | | | - Angela Tramontano
- Institute for Technology Assessment, Massachusetts General Hospital, Boston, Massachusetts
| | - Justin F. Gainor
- Massachusetts General Hospital Cancer Center, Boston, Massachusetts
| | - Daniel C. Chung
- Division of Gastroenterology,!Massachusetts General Hospital, Boston, Massachusetts
| | - Jeffrey W. Clark
- Massachusetts General Hospital Cancer Center, Boston, Massachusetts
| | - Chin Hur
- Department of Medicine, Massachusetts General Hospital, Boston, Massachusetts
- Institute for Technology Assessment, Massachusetts General Hospital, Boston, Massachusetts
- Division of Gastroenterology,!Massachusetts General Hospital, Boston, Massachusetts
- Columbia University Irving Medical Center, New York, New York
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15
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Choi JG, Nipp RD, Tramontano A, Ali A, Zhan T, Pandharipande P, Dowling EC, Ferrone CR, Hong TS, Schrag D, Fernandez-Del Castillo C, Ryan DP, Kong CY, Hur C. Neoadjuvant FOLFIRINOX for Patients with Borderline Resectable or Locally Advanced Pancreatic Cancer: Results of a Decision Analysis. Oncologist 2018; 24:945-954. [PMID: 30559125 PMCID: PMC6656457 DOI: 10.1634/theoncologist.2018-0114] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2018] [Accepted: 11/15/2018] [Indexed: 12/15/2022] Open
Abstract
Decision‐analytic modeling can provide a methodologic platform that integrates the best available data to quantitatively explore clinical decisions by simulating a hypothetical clinical trial between competing strategies. This article analyzes a mathematical decision‐analytic model to estimate the long‐term clinical outcomes and cost‐effectiveness of neoadjuvant FOLFIRINOX compared with surgery followed by adjuvant gemcitabine monotherapy or gemcitabine/capecitabine for patients with potentially resectable pancreatic ductal adenocarcinoma. Background. The effectiveness and cost‐effectiveness of using neoadjuvant FOLFIRINOX (nFOLFIRINOX) for patients with borderline resectable or locally advanced pancreatic ductal adenocarcinoma (BR/LA PDAC) are unknown. Our objective was to determine whether nFOLFIRINOX is more effective or cost‐effective for patients with BR/LA PDAC compared with upfront resection surgery and adjuvant gemcitabine plus capecitabine (GEM/CAPE) or gemcitabine monotherapy (GEM). Materials and Methods. We performed a decision‐analysis to assess the value of nFOLFIRINOX versus GEM/CAPE or GEM using a mathematical simulation model. Model transition probabilities were estimated using published and institutional clinical data. Model outcomes included overall and disease‐free survival, quality‐adjusted life‐years (QALYs), cost in U.S. dollars, and cost‐effectiveness expressed as an incremental cost‐effectiveness ratio. Deterministic and probabilistic sensitivity analyses explored the uncertainty of model assumptions. Results. Model results found median overall survival (34.5/28.0/22.0 months) and disease‐free survival (15.0/14.0/13.0 months) were better for nFOLFIRINOX compared with GEM/CAPE and GEM. nFOLFIRINOX was the optimal strategy on an efficiency frontier, resulting in an additional 0.35 life‐years, or 0.30 QALYs, at a cost of $46,200/QALY gained compared with GEM/CAPE. Sensitivity analysis found that cancer recurrence and complete resection rates most affected model results, but were otherwise robust. Probabilistic sensitivity analyses found that nFOLFIRINOX was cost‐effective 92.4% of the time at a willingness‐to‐pay threshold of $100,000/QALY. Conclusion. Our modeling analysis suggests that nFOLFIRINOX is preferable to upfront surgery for patients with BR/LA PDAC from both an effectiveness and cost‐effectiveness standpoint. Additional clinical data that further define the long‐term effectiveness of nFOLFIRINOX are needed to confirm our results. Implications for Practice. Increasingly, neoadjuvant FOLFIRINOX has been used for borderline resectable and locally advanced pancreatic cancer with the goal of rendering them resectable and decreasing risk of recurrence. Despite many efforts to show the benefits of neoadjuvant over adjuvant therapies, clinical evidence to guide this decision is largely lacking. Decision‐analytic modeling can provide a methodologic platform that integrates the best available data to quantitatively explore clinical decisions by simulating a hypothetical clinical trial. This modeling analysis suggests that neoadjuvant FOLFIRINOX is preferable to upfront surgery and adjuvant therapies by various outcome metrics including quality‐adjusted life years, overall survival, and incremental cost‐effectiveness ratio.
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Affiliation(s)
- Jin G Choi
- Gastrointestinal Unit, Massachusetts General Hospital, Boston, Massachusetts, USA
- Institute for Technology Assessment, Massachusetts General Hospital, Boston, Massachusetts, USA
- Health Innovations Research and Evaluations Unit, Columbia University Medical Center, New York, NY, USA
| | - Ryan D Nipp
- Department of Medical Oncology, Massachusetts General Hospital, Boston, Massachusetts, USA
- Harvard Medical School, Boston, Massachusetts, USA
| | - Angela Tramontano
- Gastrointestinal Unit, Massachusetts General Hospital, Boston, Massachusetts, USA
- Institute for Technology Assessment, Massachusetts General Hospital, Boston, Massachusetts, USA
| | - Ayman Ali
- Gastrointestinal Unit, Massachusetts General Hospital, Boston, Massachusetts, USA
- Institute for Technology Assessment, Massachusetts General Hospital, Boston, Massachusetts, USA
| | - Tiannan Zhan
- Gastrointestinal Unit, Massachusetts General Hospital, Boston, Massachusetts, USA
- Institute for Technology Assessment, Massachusetts General Hospital, Boston, Massachusetts, USA
| | - Pari Pandharipande
- Institute for Technology Assessment, Massachusetts General Hospital, Boston, Massachusetts, USA
- Department of Radiology, Massachusetts General Hospital, Boston, Massachusetts, USA
- Harvard Medical School, Boston, Massachusetts, USA
| | - Emily C Dowling
- Gastrointestinal Unit, Massachusetts General Hospital, Boston, Massachusetts, USA
- Institute for Technology Assessment, Massachusetts General Hospital, Boston, Massachusetts, USA
| | - Cristina R Ferrone
- Department of Surgery, Massachusetts General Hospital, Boston, Massachusetts, USA
- Harvard Medical School, Boston, Massachusetts, USA
| | - Theodore S Hong
- Department of Radiation Oncology, Massachusetts General Hospital, Boston, Massachusetts, USA
- Harvard Medical School, Boston, Massachusetts, USA
| | - Deborah Schrag
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts, USA
| | - Carlos Fernandez-Del Castillo
- Department of Surgery, Massachusetts General Hospital, Boston, Massachusetts, USA
- Harvard Medical School, Boston, Massachusetts, USA
| | - David P Ryan
- Department of Medical Oncology, Massachusetts General Hospital, Boston, Massachusetts, USA
- Harvard Medical School, Boston, Massachusetts, USA
| | - Chung Yin Kong
- Institute for Technology Assessment, Massachusetts General Hospital, Boston, Massachusetts, USA
- Department of Radiology, Massachusetts General Hospital, Boston, Massachusetts, USA
- Harvard Medical School, Boston, Massachusetts, USA
| | - Chin Hur
- Gastrointestinal Unit, Massachusetts General Hospital, Boston, Massachusetts, USA
- Institute for Technology Assessment, Massachusetts General Hospital, Boston, Massachusetts, USA
- Harvard Medical School, Boston, Massachusetts, USA
- Herbert Irving Comprehensive Cancer Center, Columbia University Medical Center, New York, NY, USA
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16
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Díaz Rodríguez A, Frias Vargas M, Medez Rodriguez E, Mahmoud Atouitoui O, Felix Taveras I, Lopez Gil J, Tirado Moliner J, Torres Moreno P, Tramontano A, Vazquez Gómez N, Botella Garcia M, Caballar Rodilla J, Castillo Meroño J, Cols Segarra C, Contreras Torres J, De Santiago Nocito A, Gutierres Montero J, Elorza Olabegoia I, Fidalgo Gonzalez A, López Uriarte B. Risk of suffering from dyslipidaemia patients included in the IBERICAN study. Atherosclerosis 2018. [DOI: 10.1016/j.atherosclerosis.2018.06.710] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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17
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Chu JN, Choi J, Tramontano A, Morse C, Forcione D, Nishioka NS, Abrams JA, Rubenstein JH, Kong CY, Inadomi JM, Hur C. Surgical vs Endoscopic Management of T1 Esophageal Adenocarcinoma: A Modeling Decision Analysis. Clin Gastroenterol Hepatol 2018; 16:392-400.e7. [PMID: 29079222 PMCID: PMC5852380 DOI: 10.1016/j.cgh.2017.10.024] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/01/2017] [Revised: 10/13/2017] [Accepted: 10/17/2017] [Indexed: 02/07/2023]
Abstract
BACKGROUND & AIMS Although treatment of T1a esophageal adenocarcinoma (EAC) is shifting from esophagectomy to endoscopic therapy, T1b EACs are considered too high risk to be treated endoscopically. We investigated the effectiveness and cost effectiveness of esophagectomy vs endoscopic therapy for T1a and T1b EACs, and the effects of age and comorbidities, using a decision analytic Markov model. METHODS We developed a model to simulate a hypothetical cohort of men 75 years old with Charlson comorbidity index scores of 0 and either T1aN0M0 or T1bN0M0 EAC, as a base case. We used the model to compare the effects of esophagectomy vs serial endoscopic therapy. We performed sensitivity analyses based on age at diagnosis of 60-85 years, comorbidity indices of 0-2, and utilities. Post-procedure cancer-specific mortality was derived from the Surveillance, Epidemiology, and End Results Medicare database. RESULTS In the T1a base case, esophagectomy yielded more unadjusted life years than endoscopic therapy (6.97 vs 6.81), but fewer quality-adjusted life years (QALYs, 4.95 for esophagectomy vs 5.22 for endoscopic therapy). In the T1b base case, esophagectomy yielded more unadjusted life years than endoscopic therapy (5.73 vs 5.01) and QALYs (4.07 vs 3.85 for endoscopic therapy), but was not cost effective (incremental cost-effectiveness ratio $156,981). Sensitivity analyses showed endoscopic therapy optimized QALYs for patients more than 80 years old with a comorbidity index of 1 or 2, or if the ratio of post-esophagectomy to post-endoscopic therapy utilities was below 0.875. CONCLUSION In a Markov model, we showed that endoscopic therapy of T1a EAC yields more QALYs and is more cost effective than esophagectomy for patients of all ages and comorbidity indices tested. In contrast, selection of therapy for T1b EAC depends on age and comorbidities, due to surgical mortality and the competing risk of non-cancer death.
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Affiliation(s)
- Jacqueline N Chu
- Department of Medicine, Massachusetts General Hospital, Boston, Massachusetts
| | - Jin Choi
- Institute for Technology Assessment, Massachusetts General Hospital, Boston, Massachusetts
| | - Angela Tramontano
- Institute for Technology Assessment, Massachusetts General Hospital, Boston, Massachusetts
| | - Christopher Morse
- Department of Surgery, Massachusetts General Hospital, Boston, Massachusetts
| | - David Forcione
- Division of Gastroenterology, Massachusetts General Hospital, Boston, Massachusetts
| | - Norman S Nishioka
- Division of Gastroenterology, Massachusetts General Hospital, Boston, Massachusetts
| | - Julian A Abrams
- Division of Digestive and Liver Diseases, Columbia University College of Physicians and Surgeons, New York, New York
| | - Joel H Rubenstein
- Veterans Affairs Center for Clinical Management Research, Ann Arbor, Michigan; Barrett's Esophagus Program, Division of Gastroenterology, University of Michigan School of Medicine, Ann Arbor, Michigan
| | - Chung Yin Kong
- Institute for Technology Assessment, Massachusetts General Hospital, Boston, Massachusetts
| | - John M Inadomi
- Division of Gastroenterology, University of Washington School of Medicine, Seattle, Washington
| | - Chin Hur
- Department of Medicine, Massachusetts General Hospital, Boston, Massachusetts; Institute for Technology Assessment, Massachusetts General Hospital, Boston, Massachusetts; Division of Gastroenterology, Massachusetts General Hospital, Boston, Massachusetts.
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Choi J, Nipp RD, Tramontano A, Ali A, Zhan T, Kong CY, Pandharipande P, Dowling E, Ferrone C, Hong TS, Schrag D, Fernandez-del Castillo C, Ryan DP, Hur C. Neoadjuvant FOLFIRINOX for patients with borderline resectable or locally advanced pancreatic cancer: Results of a decision analysis. J Clin Oncol 2017. [DOI: 10.1200/jco.2017.35.15_suppl.4117] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
4117 Background: With the advent of more effective therapies for metastatic pancreatic ductal adenocarcinoma (PDAC), efforts to incorporate these agents, such as FOLFIRINOX, into the neoadjuvant setting are increasing. However, the efficacy and cost-effectiveness of using neoadjuvant FOLFIRINOX for patients with borderline resectable or locally advanced PDAC are unknown. We performed a decision analysis to assess the value of neoadjuvant FOLFIRINOX versus upfront surgery and adjuvant therapy. Methods: We developed a mathematical simulation model to evaluate the efficacy and cost-effectiveness of neoadjuvant FOLFIRINOX compared to upfront surgery and adjuvant therapy. We used published and institutional data as inputs to inform model development. Model outcomes included overall and disease-free survival, net benefits expressed as discounted quality-adjusted life-years (QALYs), costs in US dollars, and cost-effectiveness expressed as an incremental cost-effectiveness ratio. We used deterministic and probabilistic sensitivity analyses to explore the uncertainty of model assumptions. Results: Model estimated median overall survival (29 vs 23 months) and disease-free survival (14 vs 13 months) were better for neoadjuvant strategy compared with upfront surgery. Neoadjuvant strategy resulted in an additional 0.68 life-years gained, or 0.57 QALYs, at a cost of $59,000/QALY gained. Sensitivity analysis found that cancer recurrence rates affected model results the most. Our findings were otherwise robust with respect to changes in other model parameters, including chemotherapy toxicity, surgical complications and cancer mortality. Probabilistic sensitivity analyses showed that neoadjuvant strategy was cost-effective 80% of the time with a willingness-to-pay threshold of $100,000/QALY. Conclusions: Our model results demonstrate that neoadjuvant strategy is preferable to upfront surgery for patients with borderline resectable or locally advanced PDAC from both an efficacy and cost-effectiveness standpoint. Additional clinical data are needed to further define the long-term effectiveness of neoadjuvant FOLFIRINOX to confirm our results.
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Affiliation(s)
- Jin Choi
- Institute for Technology Assessment, Massachusetts General Hospital, Boston, MA
| | - Ryan David Nipp
- Department of Medical Oncology, Massachusetts General Hospital, Boston, MA
| | - Angela Tramontano
- Institute for Technology Assessment, Massachusetts General Hospital, Boston, MA
| | - Ayman Ali
- Institute for Technology Assessment, Massachusetts General Hospital, Boston, MA
| | - Tiannan Zhan
- Institute for Technology Assessment, Massachusetts General Hospital, Boston, MA
| | - Chung Yin Kong
- Institute for Technology Assessment, Massachusetts General Hospital, Boston, MA
| | - Pari Pandharipande
- Institute for Technology Assessment, Massachusetts General Hospital, Boston, MA
| | - Emily Dowling
- Institute for Technology Assessment, Massachusetts General Hospital, Boston, MA
| | | | - Theodore S. Hong
- NSABP/NRG Oncology, and Massachusetts General Hospital, Boston, MA
| | | | | | - David P. Ryan
- Cancer Center at the Massachusetts General Hospital, Boston, MA
| | - Chin Hur
- Institute for Technology Assessment, Massachusetts General Hospital, Boston, MA
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19
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Tramontano A, Nipp RD, Kong CY, Pandharipande P, Dowling E, Schrag D, Hur C. Disparities in cancer outcomes across age, sex, and race/ethnicity among pancreatic cancer patients. J Clin Oncol 2017. [DOI: 10.1200/jco.2017.35.15_suppl.e18071] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
e18071 Background: Age, sex, and racial/ethnic disparities exist for several malignancies, but these relationships are understudied in pancreatic adenocarcinoma (PDAC). We used the Surveillance, Epidemiology, and End Results (SEER)-Medicare linked database to determine whether these disparities persist in survival and treatment after adjusting for demographic, clinical, and treatment characteristics. Methods: Our study includes PDAC patients (pts) diagnosed from 1992-2011 in the SEER-Medicare database. We used Cox regression models to compare survival across age, sex, and race/ethnicity, stratified by non-metastatic and metastatic cancer. We used logistic regression to compare differences in chemotherapy, radiation, and surgery receipt across age, sex, and race/ethnicity. We adjusted for marital status, urban location, socioeconomic factors, SEER region, comorbidities, cancer stage, lymph node status, tumor location, tumor grade, diagnosis year, and chemotherapy, radiation, and/or surgery receipt. Results: Of 20,896 PDAC pts (median diagnosis age = 75 years; 56% female), 84% were White, 9% Black, 5% Asian, and 2% Hispanic; 53% had metastatic cancer. Among non-metastatic pts, adjusted Cox regression demonstrated that older pts had worse survival compared with younger pts (HR: ≥1.1 for all ages [reference = 66-69 years vs. 70-74, 75-79, 80-84, 85+], p < 0.01 for all); we found no survival differences between sexes. Black (HR: 1.1, p = 0.01) and Hispanic (HR: 1.2, p < 0.01) pts had worse survival compared to White pts. Among metastatic cancer pts, adjusted Cox regression demonstrated that older pts (HR: 1.1 for age 85+ [reference = 66-69 years], p < 0.01) had worse survival than younger pts, and males (HR: 1.1, p < 0.01) had worse survival than females. There were no racial/ethnic differences. There were disparities in treatment received; older age and minority race/ethnicity were associated with lower likelihood of receiving chemotherapy, radiation, and/or surgery. Conclusions: Age, sex, and racial/ethnic disparities in survival outcomes and treatment received exist for PDAC pts; these disparities persist after adjusting for differences in demographic, clinical, and treatment characteristics.
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Affiliation(s)
- Angela Tramontano
- Institute for Technology Assessment, Massachusetts General Hospital, Boston, MA
| | - Ryan David Nipp
- Department of Medical Oncology, Massachusetts General Hospital, Boston, MA
| | - Chung Yin Kong
- Institute for Technology Assessment, Massachusetts General Hospital, Boston, MA
| | - Pari Pandharipande
- Institute for Technology Assessment, Massachusetts General Hospital, Boston, MA
| | - Emily Dowling
- Institute for Technology Assessment, Massachusetts General Hospital, Boston, MA
| | | | - Chin Hur
- Institute for Technology Assessment, Massachusetts General Hospital, Boston, MA
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20
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Lu NT, Liu NM, Vu JQ, Patel D, Cohn W, Capri J, Ziegler M, Patel N, Tramontano A, Williams R, Whitelegge J, French SW. Phospho-Network Analysis Identifies and Quantifies Hepatitis C Virus (HCV)-induced Hepatocellular Carcinoma (HCC) Proteins Regulating Viral-mediated Tumor Growth. Cancer Genomics Proteomics 2016; 13:339-357. [PMID: 27566653 PMCID: PMC5070624] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2016] [Accepted: 07/01/2016] [Indexed: 06/06/2023] Open
Abstract
BACKGROUND Patients with chronic hepatitis C virus (HCV) infection are at risk of serious complications of cirrhosis and hepatocellular carcinoma (HCC). Mass spectrometry (MS) is a versatile methodology that produces a global proteomic landscape for analysis of cancer mechanisms. MATERIALS AND METHODS Using multiplex peptide stable isotopic labeling and immobilized metal affinity chromatography (IMAC), we enriched and quantified the phosphoproteome of HCC, with and without HCV. While raw data identified protein targets based on expression alone, we also used abundance groups for comprehensive functional analysis. RESULTS Analysis of functional differences highlighted deregulated phosphoprotein networks. This uncovered additional candidates that could be directly derived from the MS data. Cellular processes and pathways that may differ with HCV infection include: cytoskeletal dynamics, insulin response, gene expression, and PI3K/AKT oncogenesis. CONCLUSION This function-focused workflow provides a simple framework to analyze MS data. Phosphoproteome quantitation with inclusive functional analysis can generate hypotheses for liver cancer research to improve early screening and identification of molecular targets for therapy.
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Affiliation(s)
- Nu T Lu
- Department of Pathology and Laboratory Medicine, University of California Los Angeles, Los Angeles, CA, U.S.A Department of Hematology and Oncology, University of California Los Angeles, Los Angeles, CA, U.S.A
| | - Natalie M Liu
- Department of Pathology and Laboratory Medicine, University of California Los Angeles, Los Angeles, CA, U.S.A
| | - James Q Vu
- Department of Pathology and Laboratory Medicine, University of California Los Angeles, Los Angeles, CA, U.S.A
| | - Darshil Patel
- Department of Pathology and Laboratory Medicine, University of California Los Angeles, Los Angeles, CA, U.S.A
| | - Whitaker Cohn
- Department of Psychiatry and Biobehavioral Sciences, University of California Los Angeles, Los Angeles, CA, U.S.A
| | - Joe Capri
- Department of Psychiatry and Biobehavioral Sciences, University of California Los Angeles, Los Angeles, CA, U.S.A Department of Molecular and Medical Pharmacology, University of California Los Angeles, Los Angeles CA, U.S.A
| | - Mary Ziegler
- Department of Pathology and Laboratory Medicine, University of California Los Angeles, Los Angeles, CA, U.S.A
| | - Nikita Patel
- Department of Pathology and Laboratory Medicine, University of California Los Angeles, Los Angeles, CA, U.S.A
| | - Angela Tramontano
- Institute for Technology Assessment, Massachusetts General Hospital, Boston, MA, U.S.A
| | - Roger Williams
- The Foundation for Liver Research-The Institute for Hepatology, London, U.K
| | - Julian Whitelegge
- Department of Psychiatry and Biobehavioral Sciences, University of California Los Angeles, Los Angeles, CA, U.S.A
| | - Samuel W French
- Department of Pathology and Laboratory Medicine, University of California Los Angeles, Los Angeles, CA, U.S.A
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21
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Battistelli C, Cicchini C, Santangelo L, Tramontano A, Grassi L, Gonzalez FJ, de Nonno V, Grassi G, Amicone L, Tripodi M. The Snail repressor recruits EZH2 to specific genomic sites through the enrollment of the lncRNA HOTAIR in epithelial-to-mesenchymal transition. Oncogene 2016; 36:942-955. [PMID: 27452518 PMCID: PMC5318668 DOI: 10.1038/onc.2016.260] [Citation(s) in RCA: 134] [Impact Index Per Article: 16.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2016] [Revised: 05/30/2016] [Accepted: 06/13/2016] [Indexed: 12/18/2022]
Abstract
The transcription factor Snail is a master regulator of cellular identity and epithelial-to-mesenchymal transition (EMT) directly repressing a broad repertoire of epithelial genes. How chromatin modifiers instrumental to its activity are recruited to Snail-specific binding sites is unclear. Here we report that the long non-coding RNA (lncRNA) HOTAIR (for HOX Transcript Antisense Intergenic RNA) mediates a physical interaction between Snail and enhancer of zeste homolog 2 (EZH2), an enzymatic subunit of the polycomb-repressive complex 2 and the main writer of chromatin-repressive marks. The Snail-repressive activity, here monitored on genes with a pivotal function in epithelial and hepatic morphogenesis, differentiation and cell-type identity, depends on the formation of a tripartite Snail/HOTAIR/EZH2 complex. These results demonstrate an lncRNA-mediated mechanism by which a transcriptional factor conveys a general chromatin modifier to specific genes, thereby allowing the execution of hepatocyte transdifferentiation; moreover, they highlight HOTAIR as a crucial player in the Snail-mediated EMT.
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Affiliation(s)
- C Battistelli
- Department of Cellular Biotechnologies and Haematology, Sezione di Genetica Molecolare, Istituto Pasteur Italia-Fondazione Cenci Bolognetti, Sapienza University of Rome, Rome, Italy
| | - C Cicchini
- Department of Cellular Biotechnologies and Haematology, Sezione di Genetica Molecolare, Istituto Pasteur Italia-Fondazione Cenci Bolognetti, Sapienza University of Rome, Rome, Italy
| | - L Santangelo
- Department of Cellular Biotechnologies and Haematology, Sezione di Genetica Molecolare, Istituto Pasteur Italia-Fondazione Cenci Bolognetti, Sapienza University of Rome, Rome, Italy
| | - A Tramontano
- Department of Physics, Istituto Pasteur Italia-Fondazione Cenci Bolognetti, Sapienza University of Rome, Rome, Italy
| | - L Grassi
- Department of Physics, Sapienza University of Rome, Rome, Italy
| | - F J Gonzalez
- Laboratory of Metabolism, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA
| | - V de Nonno
- Department of Cellular Biotechnologies and Haematology, Sezione di Genetica Molecolare, Istituto Pasteur Italia-Fondazione Cenci Bolognetti, Sapienza University of Rome, Rome, Italy
| | - G Grassi
- National Institute for Infectious Diseases L. Spallanzani, IRCCS, Rome, Italy
| | - L Amicone
- Department of Cellular Biotechnologies and Haematology, Sezione di Genetica Molecolare, Istituto Pasteur Italia-Fondazione Cenci Bolognetti, Sapienza University of Rome, Rome, Italy
| | - M Tripodi
- Department of Cellular Biotechnologies and Haematology, Sezione di Genetica Molecolare, Istituto Pasteur Italia-Fondazione Cenci Bolognetti, Sapienza University of Rome, Rome, Italy.,National Institute for Infectious Diseases L. Spallanzani, IRCCS, Rome, Italy
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22
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Pandharipande PV, Heberle C, Dowling EC, Kong CY, Tramontano A, Perzan KE, Brugge W, Hur C. Targeted Screening of Individuals at High Risk for Pancreatic Cancer: Results of a Simulation Model. Radiology 2016; 278:306. [PMID: 26691000 DOI: 10.1148/radiol.2015154045] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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23
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Pini Prato A, Carlucci M, Bagolan P, Gamba PG, Bernardi M, Leva E, Paradies G, Manzoni C, Noccioli B, Tramontano A, Jasonni V, Vaccarella F, De Pascale S, Alberti D, Riccipetitoni G, Falchetti D, Caccia F, Pelizzo G, Schleef J, Lima M, Andriolo P, Franchella A, Cacciari A, Caravaggi F, Federici S, Andermarcher M, Perrino G, Codrich D, Camoglio FS, Chiarenza FS, Martino A, Appignani A, Briganti V, Caterino S, Cozzi D, Messina M, Rizzo A, Liotta L, Salerno D, Aceti MGR, Bartoli F, Romeo C, Esposito C, Lelli Chiesa PL, Clemente E, Mascia L, Cacciaguerra S, Di Benedetto V, Licciardi S, De Grazia E, Ubertazzi M, Piazza G, Mattioli G, Rossi F, Nobili M. A cross-sectional nationwide survey on esophageal atresia and tracheoesophageal fistula. J Pediatr Surg 2015; 50:1441-56. [PMID: 25783403 DOI: 10.1016/j.jpedsurg.2015.01.004] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/28/2014] [Revised: 01/07/2015] [Accepted: 01/09/2015] [Indexed: 01/29/2023]
Abstract
BACKGROUND Our study aims at disclosing epidemiology and most relevant clinical features of esophageal atresia (EA) pointing to a model of multicentre collaboration. METHODS A detailed questionnaire was sent to all Italian Units of pediatric surgery in order to collect data of patients born with EA between January and December 2012. The results were crosschecked by matching date and place of birth of the patients with those of diagnosis-related group provided by the Italian Ministry of Health (MOH). RESULTS A total of 146 questionnaires were returned plus a further 32 patients reported in the MOH database. Basing on a total of 178 patients with EA born in Italy in 2012, the incidence of EA was calculated in 3.33 per 10,000 live births. Antenatal diagnosis was suspected in 29.5% patients. 55.5% showed associated anomalies. The most common type of EA was Gross type C (89%). Postoperative complications occurred in 37% of type C EA and 100% of type A EA. A 9.5% mortality rate was reported. CONCLUSIONS This is the first Italian cross-sectional nationwide survey on EA. We can now develop shared guidelines and provide more reliable prognostic expectations for our patients.
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Affiliation(s)
| | - M Carlucci
- Istituto Giannina Gaslini, Genova, Italy
| | - P Bagolan
- Ospedale Pediatrico Bambino Gesù, Roma, Italy
| | - P G Gamba
- Azienda Ospedaliero-Universitaria, Padova, Italy
| | - M Bernardi
- Azienda Ospedaliera della Provincia di Lecco, Merate, Italy
| | - E Leva
- Ospedale Maggiore Policlinico Magiagalli, Milano, Italy
| | | | | | - B Noccioli
- Ospedale Pediatrico Meyer, Firenze, Italy
| | - A Tramontano
- Azienda Ospedaliera Pediatrica Santobono Pausilipon, Napoli, Italy
| | - V Jasonni
- Istituto Giannina Gaslini, Genova, Italy; Università degli Studi di Genova, Genova, Italy
| | - F Vaccarella
- ASN SS: Antonio e Biagio e Cesare Arrigo, Alessandria
| | | | | | | | | | - F Caccia
- Ospedale San Carlo Borromeo, Milano
| | | | - J Schleef
- Ospedale Infantile Regina Margherita, Torino
| | - M Lima
- Ospedale Sant'Orsola Malpighi, Bologna
| | | | | | | | | | | | | | | | - D Codrich
- Ospedale Infantile Burlo Garofalo, Trieste
| | | | | | | | - A Appignani
- Ospedale Santa Maria della Misericordia, Perugia
| | | | | | | | - M Messina
- Ospedale Policlinico Santa Maria alle Scotte, Siena
| | | | - L Liotta
- Ospedale Francesco Ferrari, Casarano
| | - D Salerno
- Azienda Ospedaliera Pugliese-Ciaccio, Catanzaro
| | | | - F Bartoli
- Azienda Ospedaliera Universitaria-Ospedali Riuniti, Foggia
| | - C Romeo
- Azienda Ospedaliero-Universitaria G. Martino, Messina
| | - C Esposito
- Policlinico Universitario Federico II, Napoli
| | | | - E Clemente
- Azienda Ospedaliera Universitaria S. Giovanni di Dio e Ruggi d'Aragona, Salerno
| | | | | | | | | | - E De Grazia
- Azienda Ospedaliero-Universitaria Policlinico P. Giaccone
| | | | - G Piazza
- Ospedale Sant'Antonio Abate, Trapani
| | | | - F Rossi
- Ospedale Maggiore della carità, Novara
| | - M Nobili
- Azienda Ospedaliera Universitaria-Ospedali Riuniti, Foggia
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24
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Pandharipande PV, Heberle C, Dowling EC, Kong CY, Tramontano A, Perzan KE, Brugge W, Hur C. Targeted screening of individuals at high risk for pancreatic cancer: results of a simulation model. Radiology 2015; 275:177-87. [PMID: 25393849 PMCID: PMC4372492 DOI: 10.1148/radiol.14141282] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
PURPOSE To identify when, from the standpoint of relative risk, magnetic resonance (MR) imaging-based screening may be effective in patients with a known or suspected genetic predisposition to pancreatic cancer. MATERIALS AND METHODS The authors developed a Markov model of pancreatic ductal adenocarcinoma (PDAC). The model was calibrated to National Cancer Institute Surveillance, Epidemiology, and End Results registry data and informed by the literature. A hypothetical screening strategy was evaluated in which all population individuals underwent one-time MR imaging screening at age 50 years. Screening outcomes for individuals with an average risk for PDAC ("base case") were compared with those for individuals at an increased risk to assess for differential benefits in populations with a known or suspected genetic predisposition. Effects of varying key inputs, including MR imaging performance, surgical mortality, and screening age, were evaluated with a sensitivity analysis. RESULTS In the base case, screening resulted in a small number of cancer deaths averted (39 of 100 000 men, 38 of 100 000 women) and a net decrease in life expectancy (-3 days for men, -4 days for women), which was driven by unnecessary pancreatic surgeries associated with false-positive results. Life expectancy gains were achieved if an individual's risk for PDAC exceeded 2.4 (men) or 2.7 (women) times that of the general population. When relative risk increased further, for example to 30 times that of the general population, averted cancer deaths and life expectancy gains increased substantially (1219 of 100 000 men, life expectancy gain: 65 days; 1204 of 100 000 women, life expectancy gain: 71 days). In addition, results were sensitive to MR imaging specificity and the surgical mortality rate. CONCLUSION Although PDAC screening with MR imaging for the entire population is not effective, individuals with even modestly increased risk may benefit.
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Affiliation(s)
- Pari V. Pandharipande
- From the Massachusetts General Hospital Institute for Technology
Assessment (P.V.P., C.H., E.C.D., C.Y.K., A.T., K.E.P., C.H.), Department of
Radiology (P.V.P., C.H., E.C.D., C.Y.K., A.T.), and Department of General Medicine,
Gastrointestinal Unit (K.E.P., W.B., C.H.), Massachusetts General Hospital, 101
Merrimac St, 10th Floor, Boston, MA 02114; and Harvard Medical School, Boston,
Mass
| | - Curtis Heberle
- From the Massachusetts General Hospital Institute for Technology
Assessment (P.V.P., C.H., E.C.D., C.Y.K., A.T., K.E.P., C.H.), Department of
Radiology (P.V.P., C.H., E.C.D., C.Y.K., A.T.), and Department of General Medicine,
Gastrointestinal Unit (K.E.P., W.B., C.H.), Massachusetts General Hospital, 101
Merrimac St, 10th Floor, Boston, MA 02114; and Harvard Medical School, Boston,
Mass
| | - Emily C. Dowling
- From the Massachusetts General Hospital Institute for Technology
Assessment (P.V.P., C.H., E.C.D., C.Y.K., A.T., K.E.P., C.H.), Department of
Radiology (P.V.P., C.H., E.C.D., C.Y.K., A.T.), and Department of General Medicine,
Gastrointestinal Unit (K.E.P., W.B., C.H.), Massachusetts General Hospital, 101
Merrimac St, 10th Floor, Boston, MA 02114; and Harvard Medical School, Boston,
Mass
| | - Chung Yin Kong
- From the Massachusetts General Hospital Institute for Technology
Assessment (P.V.P., C.H., E.C.D., C.Y.K., A.T., K.E.P., C.H.), Department of
Radiology (P.V.P., C.H., E.C.D., C.Y.K., A.T.), and Department of General Medicine,
Gastrointestinal Unit (K.E.P., W.B., C.H.), Massachusetts General Hospital, 101
Merrimac St, 10th Floor, Boston, MA 02114; and Harvard Medical School, Boston,
Mass
| | - Angela Tramontano
- From the Massachusetts General Hospital Institute for Technology
Assessment (P.V.P., C.H., E.C.D., C.Y.K., A.T., K.E.P., C.H.), Department of
Radiology (P.V.P., C.H., E.C.D., C.Y.K., A.T.), and Department of General Medicine,
Gastrointestinal Unit (K.E.P., W.B., C.H.), Massachusetts General Hospital, 101
Merrimac St, 10th Floor, Boston, MA 02114; and Harvard Medical School, Boston,
Mass
| | - Katherine E. Perzan
- From the Massachusetts General Hospital Institute for Technology
Assessment (P.V.P., C.H., E.C.D., C.Y.K., A.T., K.E.P., C.H.), Department of
Radiology (P.V.P., C.H., E.C.D., C.Y.K., A.T.), and Department of General Medicine,
Gastrointestinal Unit (K.E.P., W.B., C.H.), Massachusetts General Hospital, 101
Merrimac St, 10th Floor, Boston, MA 02114; and Harvard Medical School, Boston,
Mass
| | - William Brugge
- From the Massachusetts General Hospital Institute for Technology
Assessment (P.V.P., C.H., E.C.D., C.Y.K., A.T., K.E.P., C.H.), Department of
Radiology (P.V.P., C.H., E.C.D., C.Y.K., A.T.), and Department of General Medicine,
Gastrointestinal Unit (K.E.P., W.B., C.H.), Massachusetts General Hospital, 101
Merrimac St, 10th Floor, Boston, MA 02114; and Harvard Medical School, Boston,
Mass
| | - Chin Hur
- From the Massachusetts General Hospital Institute for Technology
Assessment (P.V.P., C.H., E.C.D., C.Y.K., A.T., K.E.P., C.H.), Department of
Radiology (P.V.P., C.H., E.C.D., C.Y.K., A.T.), and Department of General Medicine,
Gastrointestinal Unit (K.E.P., W.B., C.H.), Massachusetts General Hospital, 101
Merrimac St, 10th Floor, Boston, MA 02114; and Harvard Medical School, Boston,
Mass
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25
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Saraceno C, Marcello E, Di Marino D, Borroni B, Claeysen S, Perroy J, Padovani A, Tramontano A, Gardoni F, Di Luca M. SAP97-mediated ADAM10 trafficking from Golgi outposts depends on PKC phosphorylation. Cell Death Dis 2014; 5:e1547. [PMID: 25429624 PMCID: PMC4260750 DOI: 10.1038/cddis.2014.492] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2014] [Accepted: 10/02/2014] [Indexed: 11/09/2022]
Abstract
A disintegrin and metalloproteinase 10 (ADAM10) is the major α-secretase that catalyzes the amyloid precursor protein (APP) ectodomain shedding in the brain and prevents amyloid formation. Its activity depends on correct intracellular trafficking and on synaptic membrane insertion. Here, we describe that in hippocampal neurons the synapse-associated protein-97 (SAP97), an excitatory synapse scaffolding element, governs ADAM10 trafficking from dendritic Golgi outposts to synaptic membranes. This process is mediated by a previously uncharacterized protein kinase C phosphosite in SAP97 SRC homology 3 domain that modulates SAP97 association with ADAM10. Such mechanism is essential for ADAM10 trafficking from the Golgi outposts to the synapse, but does not affect ADAM10 transport from the endoplasmic reticulum. Notably, this process is altered in Alzheimer's disease brains. These results help in understanding the mechanism responsible for the modulation of ADAM10 intracellular path, and can constitute an innovative therapeutic strategy to finely tune ADAM10 shedding activity towards APP.
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Affiliation(s)
- C Saraceno
- Department of Pharmacological and Biomolecular Sciences, Centre of Excellence on Neurodegenerative Diseases, Università degli Studi di Milano, via Balzaretti 9, 20133 Milan, Italy
| | - E Marcello
- Department of Pharmacological and Biomolecular Sciences, Centre of Excellence on Neurodegenerative Diseases, Università degli Studi di Milano, via Balzaretti 9, 20133 Milan, Italy
| | - D Di Marino
- Department of Physics, Sapienza University of Rome, P.le A. Moro, 5-00187 Rome, Italy
| | - B Borroni
- Department of Neurological Sciences, University of Brescia, 25125 Brescia, Italy
| | - S Claeysen
- 1] CNRS, UMR-5203, Institut de Génomique Fonctionnelle, Montpellier, France [2] Inserm, U661, Montpellier, France [3] Universités de Montpellier 1 and 2, UMR-5203, Montpellier, France
| | - J Perroy
- 1] CNRS, UMR-5203, Institut de Génomique Fonctionnelle, Montpellier, France [2] Inserm, U661, Montpellier, France [3] Universités de Montpellier 1 and 2, UMR-5203, Montpellier, France
| | - A Padovani
- Department of Neurological Sciences, University of Brescia, 25125 Brescia, Italy
| | - A Tramontano
- 1] Department of Physics, Sapienza University of Rome, P.le A. Moro, 5-00187 Rome, Italy [2] Institute Pasteur Fondazione Cenci Bolognetti, Sapienza University of Rome, P.le A. Moro, 5-00187 Rome, Italy
| | - F Gardoni
- Department of Pharmacological and Biomolecular Sciences, Centre of Excellence on Neurodegenerative Diseases, Università degli Studi di Milano, via Balzaretti 9, 20133 Milan, Italy
| | - M Di Luca
- Department of Pharmacological and Biomolecular Sciences, Centre of Excellence on Neurodegenerative Diseases, Università degli Studi di Milano, via Balzaretti 9, 20133 Milan, Italy
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Greer JA, Tramontano A, McMahon PM, El-Jawahri A, Parikh RB, Gallagher ER, Pirl WF, Jackson VA, Muzikansky A, Temel JS. Cost analysis of a randomized trial of early palliative care (PC) in patients with metastatic non-small cell lung cancer (NSCLC). J Clin Oncol 2014. [DOI: 10.1200/jco.2014.32.31_suppl.4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
4 Background: Several randomized, controlled trials have shown that early, integrated palliative and oncology care improves quality of life, mood, and symptom burden in patients with advanced cancers. However, the degree to which early involvement of specialty PC in the ambulatory care setting impacts the cost of care remains unknown. We investigated the health care costs for patients with metastatic NSCLC enrolled in a clinical trial of early PC. Methods: For this secondary analysis, we examined data from a randomized trial of 151 patients with newly-diagnosed metastatic NSCLC from 06/2006 to 07/2009. Patients received either early PC integrated with standard care or standard care (SC) alone. We abstracted costs for emergency and inpatient care, outpatient visits, intravenous chemotherapy, and physician services from the hospital’s accounting system. Oral chemotherapy costs were estimated based on actual drug charges for patients. To estimate hospice costs, we used Medicare reimbursement rates. For each participant, we calculated the average total cost of care per day for the entire study period as well as the total cost of care for the final 30 days prior to death. Costs differences between groups were examined with the Wilcoxon Rank-Sum Test. Results: We analyzed health care costs of the 138 patients who died by 07/15/2013 (early PC N=68; SC N=70). The mean number of days on study was longer for patients assigned to early PC (M=397, SD=360) versus SC (M=299, SD=266). Over the study period, early PC was associated with a lower average total cost per day of $117 (SD=$436) compared to SC (p=.09). In the final 30 days of life, patients in the early PC group incurred higher total costs for hospice care (Mean difference=$1,053, SD=$3,162, p=.11), while expenses for chemotherapy were less (Mean difference=$757, SD=$2,143, p=.06). No cost differences between groups met the threshold for statistical significance. Conclusions: Although this secondary analysis was inconclusive due to the lack of statistical power to examine differences in cost outcomes, the delivery of early PC for patients with metastatic NSCLC does not appear to increase health care expenses over the course of disease or at the end of life. Clinical trial information: NCT01038271.
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Affiliation(s)
| | | | - Pamela M McMahon
- Institute for Technology Assessment, Massachusetts General Hospital/Harvard Medical School, Boston, MA
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Maselli M, Giantin V, Franchin A, Zanatta F, Sarti S, Corradin ML, Tramontano A, Stifani B, Sergi G, Manzato E. Detection of blood pressure increments in active elderly individuals: the role of ambulatory blood pressure monitoring. Nutr Metab Cardiovasc Dis 2014; 24:914-920. [PMID: 24548664 DOI: 10.1016/j.numecd.2014.01.003] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/27/2013] [Revised: 12/04/2013] [Accepted: 01/04/2014] [Indexed: 01/11/2023]
Abstract
BACKGROUND AND AIMS Physiological aging can lead to an increase in blood pressure (BP) over time even in regularly exercising elders. Office BP measurements (OBPM) might be unable to detect these BP variations. The aim of this study was to analyze BP changes over 3.5 years in active elders using ABPM. METHODS AND RESULTS The study involved 80 active subjects ≥65 years old who exercised regularly. At baseline and again 3.5 years later, all subjects had lab tests, weight, body mass index (BMI), body composition, resting energy expenditure (REE) recorded; they underwent OBPM, ABPM and physical activity assessment. Over 3.5 years, our sample's mean weight, BMI, body composition, REE, albumin, and physical activity levels, did not change significantly. The prevalence of hypertension detected by OBPM dropped from 68.8% to 61.3%. ABPM revealed an increase in mean 24-h BP (Δsystolic: 5.3 ± 13.6 mmHg; p = 0.001; Δdiastolic: 1.8 ± 6.7 mmHg; p = 0.018) and mean daytime BP (Δsystolic: 5.8 ± 13.5 mmHg; p = 0.001; Δdiastolic: 1.9 ± 7.1 mmHg; p = 0.022); the prevalence of hypertension detected by ABPM increased from 50% to 65%, also due to an increase (from 8.8% to 16.3%) in masked hypertension. There was no correlation between BP changes and changes in body composition and REE. CONCLUSION BP tends to increase over time in active elders, regardless of changes in body composition or level of physical activity. ABPM is an appropriate method for detecting these BP variations in active elders and to reveal cases of masked hypertension that might otherwise escape detection by OBPM.
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Affiliation(s)
- M Maselli
- Geriatric Unit, Department of Medicine, University of Padua, Italy.
| | - V Giantin
- Geriatric Unit, Department of Medicine, University of Padua, Italy
| | - A Franchin
- Geriatric Unit, Department of Medicine, University of Padua, Italy
| | | | - S Sarti
- Geriatric Unit, Department of Medicine, University of Padua, Italy
| | - M L Corradin
- Geriatric Unit, Department of Medicine, University of Padua, Italy
| | - A Tramontano
- Geriatric Unit, Department of Medicine, University of Padua, Italy
| | - B Stifani
- Warren Alpert Medical School of Brown University, Providence, RI, USA
| | - G Sergi
- Geriatric Unit, Department of Medicine, University of Padua, Italy
| | - E Manzato
- Geriatric Unit, Department of Medicine, University of Padua, Italy
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Bonella S, Raimondo D, Milanetti E, Tramontano A, Ciccotti G. Mapping the hydropathy of amino acids based on their local solvation structure. J Phys Chem B 2014; 118:6604-13. [PMID: 24845543 DOI: 10.1021/jp500980x] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
In spite of its relevant biological role, no general consensus exists on the quantitative characterization of amino acid's hydropathy. In particular, many hydrophobicity scales exist, often producing quite different rankings for the amino acids. To make progress toward a systematic classification, we analyze amino acids' hydropathy based on the orientation of water molecules at a given distance from them as computed from molecular dynamics simulations. In contrast with what is usually done, we argue that assigning a single number is not enough to characterize the properties of an amino acid, in particular when both hydrophobic and hydrophilic regions are present in a residue. Instead we show that appropriately defined conditional probability densities can be used to map the hydrophilic and hydrophobic groups on the amino acids with greater detail than possible with other available methods. Three indicators are then defined based on the features of these probabilities to quantify the specific hydrophobicity and hydrophilicity of each amino acid. The characterization that we propose can be used to understand some of the ambiguities in the ranking of amino acids in the current scales. The quantitative indicators can also be used in combination with standard bioinformatics tools to predict the location of transmembrane regions of proteins. The method is sensitive to the specific environment of the amino acids and can be applied to unnatural and modified amino acids, as well as to other small organic molecules.
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Affiliation(s)
- S Bonella
- Department of Physics, Sapienza University of Rome , Ple A. Moro 5, 00185 Rome, Italy
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Greer JA, McMahon PM, Tramontano A, Gallagher ER, Pirl WF, Jackson VA, Temel JS. Effect of early palliative care on health care costs in patients with metastatic NSCLC. J Clin Oncol 2012. [DOI: 10.1200/jco.2012.30.15_suppl.6004] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
6004 Background: Introducing palliative care soon after diagnosis for patients with metastatic non-small cell lung cancer (NSCLC) leads to improvements in quality of life, mood, end-of-life care, and possibly survival. We sought to investigate whether early palliative care is also associated with health care cost savings. Methods: This secondary analysis is based on a randomized controlled trial of 151 patients with newly-diagnosed, metastatic NSCLC presenting to an outpatient clinic at a tertiary cancer center between 6/2006 and 7/2009. Participants received either early palliative care integrated with standard oncology care or standard oncology care alone. We queried participants’ electronic health records as well as our institution’s billing database to collect data on frequency and costs of outpatient clinic visits, inpatient hospitalizations, chemotherapy administration, and hospice services. The primary outcome was the difference in average resource use costs during the final month of life between groups. Results: By 18-month follow up, 133 (88.1%) participants had died, and 125 (82.8%) had available data for this analysis. Participants in the early palliative care group had a mean cost savings of $2,282 (median=$2,432) per patient in total health care expenditures during the final month of life compared to the standard care group. The difference was primarily accounted for by lower costs for inpatient visits (mean saving per patient=$3,110) and chemotherapy administration (mean saving per patient=$640). Although expenditures for outpatient clinic visits were similar between groups, the costs for hospice services were greater for the early palliative care group because of the longer lengths of stay in hospice care (mean cost per patient=$1,125). Conclusions: Early palliative care for individuals diagnosed with metastatic NSCLC not only improves multiple patient outcomes but also may be associated with lower hospital resource use costs, primarily through decreased inpatient visits and chemotherapy administration at the end of life.
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Ummarino D, Miele E, Masi P, Tramontano A, Staiano A, Vandenplas Y. Impact of antisecretory treatment on respiratory symptoms of gastroesophageal reflux disease in children. Dis Esophagus 2012; 25:671-7. [PMID: 22236501 DOI: 10.1111/j.1442-2050.2011.01301.x] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [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: 12/11/2022]
Abstract
The effect of antisecretory treatment on extraesophageal symptoms of gastroesophageal reflux disease was evaluated. Seventy-eight children presenting with typical and extraesophageal symptoms of gastroesophageal reflux disease underwent a multichannel intraluminal impedance and pH monitoring (MII/pH). Children with a positive MII/pH were randomly treated with proton pump inhibitors (PPIs) or histamine H(2) -receptor antagonists (H(2) RAs) during 3 months. At the end of the treatment period, all patients were recalled. A second treatment period of 3 months was given to those patients who were not symptom-free after 3 months. Thirty-five of the forty-one (85.4%) children with a pathologic MII/pH presented with extraesophageal symptoms and were treated with PPIs (omeprazole; n:19) or H(2) RAs (ranitidine; n:16) for 12 weeks. After 3 months, 11/19 (57.9%) PPI-treated patients had a complete resolution of symptoms; 6/8 nonresponders were treated with PPI for another 3 months and became all symptom-free. The other two underwent a Nissen fundoplication. Only 5/16 (31.2 %) patients treated with H(2) RAs had a complete resolution of symptoms after 3 months; 1/11 was treated again with H(2) RAs during 3 months, and 10/11 were changed to PPIs. In 3/10, a partial resolution of symptoms was achieved, while in 7/10, a complete remission was obtained (P < 0.05). Antisecretory reflux treatment improves extraesophageal reflux symptoms. The efficacy of PPIs is superior to that of H(2) RAs in these children.
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Affiliation(s)
- D Ummarino
- Department of Pediatrics, University of Naples Federico II, Naples, Italy
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Galvão A, Skarzynski D, Szóstek A, Silva E, Tramontano A, Mollo A, Mateus L, Ferreira-Dias G. Cytokines tumor necrosis factor-α and interferon-γ participate in modulation of the equine corpus luteum as autocrine and paracrine factors. J Reprod Immunol 2012; 93:28-37. [DOI: 10.1016/j.jri.2011.11.002] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2011] [Revised: 11/25/2011] [Accepted: 11/27/2011] [Indexed: 11/29/2022]
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Galvao AM, Ramilo DW, Skarzynski DJ, Lukasik K, Tramontano A, Mollo A, Mateus LM, Ferreira-Dias GML. Is FAS/Fas Ligand System Involved in Equine Corpus Luteum Functional Regression?1. Biol Reprod 2010; 83:901-8. [DOI: 10.1095/biolreprod.110.084699] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.8] [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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Miele E, Giannetti E, Martinelli M, Tramontano A, Greco L, Staiano A. Impact of the Rome II paediatric criteria on the appropriateness of the upper and lower gastrointestinal endoscopy in children. Aliment Pharmacol Ther 2010; 32:582-90. [PMID: 20528827 DOI: 10.1111/j.1365-2036.2010.04383.x] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
BACKGROUND The demand for paediatric gastrointestinal (GI) endoscopy has increased, resulting in a significant rise of overall costs. AIM To assess the clinical impact of the Rome II criteria for functional gastrointestinal disorders when selecting paediatric patients who underwent GI endoscopy. METHODS The indications and findings of GI endoscopic procedures performed before and after the publication of the Rome II criteria were evaluated retrospectively. RESULTS Upper GI endoscopy was performed in 1124 children, whereas colonoscopy was performed in 500 subjects. A total of 607 (54%) oesophago-gastro-duodenoscopies (OGDs) were positive and 517 (46%) were negative, whereas 306 (61.1%) colonoscopies were positive and 194 (38.9%) were negative. Of the 1624 procedures, 26% were considered inappropriate according to the Rome II criteria. Inappropriate procedures decreased significantly after publication of the Rome II criteria (OR, 3.7; 95% CI, 1.8-7.5). Of 1202 appropriate GI endoscopies, 502 OGD (62.7%) were significantly contributive, compared with only 105 (32.5%) of the 323 inappropriate procedures (OR, 3.5; 95% CI, 2.6-4.6), whereas 265 (65.8%) colonoscopies were significantly contributive, compared with only 41 (42.3%) of the 97 inappropriate procedures (OR, 2.6; 95% CI, 1.6-4.1). CONCLUSIONS The use of the criteria for functional gastrointestinal disorders makes a significant positive impact, they should reduce unnecessary paediatric GI endoscopy.
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Affiliation(s)
- E Miele
- Department of Pediatrics, University of Naples "Federico II", Naples, Italy
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Abstract
BACKGROUND It is not known whether there have been recent changes in demographic or clinical characteristics among patients newly diagnosed with Barrett's esophagus (BE), which could be a result of changes in disease epidemiology or of screening or surveillance effects, and could have clinical implications. AIMS The aim of this study was to determine whether there has been a shift in age at diagnosis of BE over the past decade. Secondary aims were to determine whether there has been a shift in patient body mass index (BMI) or BE segment length. METHODS An endoscopic database at a tertiary medical center was used to identify all esophagogastroduodenoscopies (EGDs) performed between 1997 and 2007. The cohort was restricted to patients newly diagnosed with BE. Pathology records were reviewed to confirm biopsy findings of intestinal metaplasia (IM). RESULTS BE was diagnosed in 378 subjects between 1997 and 2007. Mean age at diagnosis of BE was 60.7 +/- 14.1 years, with mean BMI of 27.4 +/- 5.2 kg/m(2) and mean BE segment length of 4.7 +/- 3.7 cm. Between 1997 and 2007 there was no significant change in mean age at diagnosis, BMI, BE segment length or in proportion of men versus women newly diagnosed. CONCLUSIONS Despite an increase in volume of EGDs performed in an open-access endoscopy unit between 1997 and 2007, there was no appreciable shift in age at diagnosis of BE. BMI and BE segment length among newly diagnosed patients also remained stable over this time period.
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Affiliation(s)
- Patrick Yachimski
- Blake 4, Gastrointestinal Unit, Massachusetts General Hospital, Harvard Medical School, 55 Fruit Street, Boston, MA 02114, USA
| | - Rebecca A. Lee
- Blake 4, Gastrointestinal Unit, Massachusetts General Hospital, Harvard Medical School, 55 Fruit Street, Boston, MA 02114, USA
| | - Angela Tramontano
- Institute for Technology Assessment, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Norman S. Nishioka
- Blake 4, Gastrointestinal Unit, Massachusetts General Hospital, Harvard Medical School, 55 Fruit Street, Boston, MA 02114, USA
| | - Chin Hur
- Blake 4, Gastrointestinal Unit, Massachusetts General Hospital, Harvard Medical School, 55 Fruit Street, Boston, MA 02114, USA. Institute for Technology Assessment, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
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Shcheglova T, Makker SP, Tramontano A. Covalent Binding Antibodies Suppress Advanced glycation: On the Innate Tier of Adaptive Immunity. Acta Naturae 2009. [DOI: 10.32607/20758251-2009-1-2-66-72] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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Shcheglova T, Makker SP, Tramontano A. Covalent binding antibodies suppress advanced glycation: on the innate tier of adaptive immunity. Acta Naturae 2009; 1:66-72. [PMID: 22649604 PMCID: PMC3347515] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
Abstract
Non-enzymatic protein glycation is a source of metabolic stress that contributes to cytotoxicity and tissue damage. Hyperglycemia has been linked to elevation of advanced glycation endproducts, which mediate much of the vascular pathology leading to diabetic complications. Enhanced glycation of immunoglobulins and their accelerated vascular clearance is proposed as a natural mechanism to intercept alternative advanced glycation endproducts, thereby mitigating microvascular disease. We reported that antibodies against the glycoprotein KLH have elevated reactivity for glycopeptides from diabetic serum. These reactions are mediated by covalent binding between antibody light chains and carbonyl groups of glycated peptides. Diabetic animals that were immunized to induce reactive antibodies had attenuated diabetic nephropathy, which correlated with reduced levels of circulating and kidney-bound glycation products. Molecular analysis of antibody glycation revealed the preferential modification of light chains bearing germline-encoded lambda V regions. We previously noted that antibody fragments carrying V regions in the germline configuration are selected from a human Fv library by covalent binding to a reactive organophosphorus ester. These Fv fragments were specifically modified at light chain V region residues, which map to the combining site at the interface between light and heavy chains. These findings suggest that covalent binding is an innate property of antibodies, which may be encoded in the genome for specific physiological purposes. This hypothesis is discussed in context with current knowledge of the natural antibodies that recognize altered self molecules and the catalytic autoantibodies found in autoimmune disease.
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Affiliation(s)
- T. Shcheglova
- Institute of Cytology and Genetics, Siberian Branch of the Russian Academy of Sciences
| | - S. P. Makker
- Department of Pediatrics, University of California, Davis - School of Medicine Davis;
| | - A. Tramontano
- Department of Pediatrics, University of California, Davis - School of Medicine Davis;
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Kurkova IN, Reshetnyak AV, Durova OM, Knorre VD, Tramontano A, Friboulet A, Ponomarenko NA, Gabibov AG, Smirnov IV. Antibodies-antidotes against organophosphorus compounds. DOKL BIOCHEM BIOPHYS 2009; 425:94-7. [PMID: 19496331 DOI: 10.1134/s1607672909020100] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Affiliation(s)
- I N Kurkova
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, ul. Miklukho-Maklaya 16/10, Moscow 117997, Russia
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Moutran A, Balan A, Ferreira LCS, Giorgetti A, Tramontano A, Ferreira RCC. Structural model and ligand interactions of the Xanthomonas axonopodis pv. citri oligopeptide-binding protein. Genet Mol Res 2007; 6:1169-1177. [PMID: 18273810] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
The oligopeptide-binding protein, OppA, ushers oligopeptide substrates to the membrane-associated oligopeptide permease (Opp), a multi-component ABC-type transporter involved in the uptake of oligopeptides by several bacterial species. In the present study, we report a structural model and an oligopeptide docking analysis of the OppA protein expressed by Xanthomonas axonopodis pv. citri (X. citri), the etiological agent of citrus canker. The X. citri OppA structural model showed a conserved three-dimensional structure, irrespective of the low amino acid identities with previously defined structures of Bacillus subtilis and Salmonella typhimurium orthologs. Oligopeptide docking analysis carried out with the proposed model indicated that the X. citri OppA preferentially binds tri- and tetrapeptides. The present study represents the first structural analysis of an OppA ortholog expressed by a phytopathogen and contributes to the understanding of the physiology and nutritional strategies of X. citri.
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Affiliation(s)
- A Moutran
- Departamento de Microbiologia, Instituto de Ciências Biomédicas II, Universidade de São Paulo, Cidade Universitária, São Paulo, SP, Brasil
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Reshetnyak AV, Armentano MF, Morse HC, Friboulet A, Makker SP, Tramontano A, Knorre VD, Gabibov AG, Ponomarenko NA. Mechanism-dependent selection of immunoglobulin gene library for obtaining covalent biocatalysts. DOKL BIOCHEM BIOPHYS 2007; 415:179-82. [PMID: 17933329 DOI: 10.1134/s1607672907040047] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Affiliation(s)
- A V Reshetnyak
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, il. Miklukho-Maklavya 16/10, Moscow, 117997 Russia
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Carrabino D, D'Onorio De Meo P, Sanna N, Castrignanò T, Orsini M, Floris M, Tramontano A. The mepsMAP server. Mapping epitopes on protein surface: mining annotated proteins. IEEE Trans Nanobioscience 2007; 6:155-61. [PMID: 17695751 DOI: 10.1109/tnb.2007.897488] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
For a growing number of biologists DNA or protein data are typically retrieved and managed on the Web, and not in the laboratory. A large number of bioinformatics datasets from primary and (thousands of) secondary databases are scattered on the Web in various formats. A biologist end-user might need to access and use tens of databases and tools every day. For this reason, the bioinformatics community is developing more and more service-oriented architectures (SOAs): software architecture of loosely coupled software services that can be accessed without knowledge of, or control over, their internal architecture. Data-processing and analysis tasks can be automated by having free access to bioinformatics Web services (WSs) that are the building blocks of the SOAs. In this paper we introduce a new bioinformatics Web server, mepsMAP (mapping epitopes on protein surface: Mining Annotated Proteins), developed to identify the recognition sites between antibodies and their cognate antigens. In some cases, the recognition site is represented by a continuous segment of the antigen sequence, but much more often the epitope is "conformational," i.e., the antibody recognizes the location and type of exposed antigen side chains that are not necessarily contiguous in the antigen's sequence, but brought together by its three-dimensional structure. A facility on the server allows the user to search putative conformational epitopes on protein surface, querying the system for proteins with a given annotation. The mepsMAP server has been implemented as a SOA composed by a database and a set of four WSs. We present here the software architecture of the system with a detailed description of the WS dataflow that has been optimized to provide the best computing performance while maintaining the easiest end-user access to the system via a Web interface.
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Affiliation(s)
- D Carrabino
- Consorzio Interuniversitario per le Applicazioni di Supercalcolo per Università e Ricerca (CASPUR), 00185 Rome, Italy.
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De Marco G, Sordino D, Bruzzese E, Di Caro S, Mambretti D, Tramontano A, Colombo C, Simoni P, Guarino A. Early treatment with ursodeoxycholic acid for cholestasis in children on parenteral nutrition because of primary intestinal failure. Aliment Pharmacol Ther 2006; 24:387-94. [PMID: 16842466 DOI: 10.1111/j.1365-2036.2006.02972.x] [Citation(s) in RCA: 45] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
BACKGROUND There is conflicting evidence as to whether ursodeoxycholic acid (UDCA) reduces the incidence of parenteral nutrition-associated cholestasis. AIM To investigate the efficacy of UDCA on parenteral nutrition-associated cholestasis in children with intestinal failure due to short bowel syndrome or to other causes. METHODS Children with cholestasis received 30 mg/kg/day UDCA. Improvement or normalization of parenteral nutrition-associated cholestasis was evaluated at 6 months of therapy and at the last follow-up. In a subgroup of children, serum UDCA levels were measured while receiving UDCA and after 4 weeks withdrawal. RESULTS Twelve children were treated with UDCA. Full remission or partial improvement of parenteral nutrition-associated cholestasis occurred in 11 of 12 children. In three of four children, withdrawal of UDCA was associated with a rebound rise of cholestasis. Only one of 12 treated children showed no improvement and in this patient, in contrast to four other patients, plasma levels of UDCA did not increase during treatment. CONCLUSIONS Ursodeoxycholic acid was effective in controlling parenteral nutrition-associated cholestasis. The efficacy of UDCA also in children with short bowel is related to intestinal absorption.
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Affiliation(s)
- G De Marco
- Department of Pediatrics, University of Naples Federico II, Naples, Italy
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Makker SP, Tramontano A. Differential capacity of anti-RAP and anti-megalin antibodies to produce progressive passive Heymann nephritis — implications for the pathogenesis of idiopathic human membranous glomerulonephritis. J Pathol 2006; 210:282-7. [PMID: 16981232 DOI: 10.1002/path.2058] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Passive Heymann nephritis (PHN) induced with heterologous antisera has been described according to various criteria, which may or may not include induction of chronic disease and proteinuria. Characteristics of the glomerular immune deposits determined by the antigenic specificities of the antisera presumably account for differences in disease outcome. In this study, the clinical and immunohistological features in the model produced with monospecific antisera were compared against megalin or receptor associated protein (RAP), two proteins that have been implicated as target antigens in PHN. Rats injected with either anti-megalin or anti-RAP antiserum developed typical glomerular immune deposits of PHN when examined after 7 days. Although the deposits stained for complement, none of the animals had abnormal proteinuria in this time frame. Over a longer time course (7-16 weeks), immune deposits persisted and proteinuria increased to pathological levels in all animals injected with anti-megalin serum. By contrast, immune deposits had cleared from the kidneys of rats injected with anti-RAP antiserum when examined at 7-8 weeks post-injection and the proteinuria levels observed up to 13 weeks remained in the normal range. Additional doses of anti-RAP antiserum given 4 and 17 days after the first injection did not prolong the duration of glomerular immune deposits. These results demonstrate a clear divergence in pathogenic potential of antisera generated against the two renal antigens, which suggest differences in the immune deposits linked to a soluble antigen that is non-covalently bound to the podocyte membrane versus those linked to an integral membrane antigen. These observations could provide clues to the nature of the unknown glomerular autoantigen of idiopathic membranous glomerulonephritis in humans.
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Affiliation(s)
- S P Makker
- Department of Pediatrics, University of California, Davis, School of Medicine, One Shields Avenue, CA 95616, USA.
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Di Meglio D, Capobianco A, Tramontano A, Gaglione G, Saggiomo G. [The Currarino syndrome: two case reports]. Minerva Pediatr 2005; 57:147-52. [PMID: 16170300] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
The association of congenital anal stenosis, or other anal and rectal malformation, sacral defect and a presacral mass is known as the Currarino syndrome described for the first time in 1981. Currarino et al. proposed that abnormal endoectodermal adhesions and notochordal defects in early fetal life may result in a fistula between the gut and the spinal canal with enteric elements ventrally and neural elements dorsally. This abnormality appears to be a variant of the split notochord syndrome. The occurrence of Currarino's triad of anomalies is familial in more than 50% of cases. The most important suggested hypothesis of transmission is an X-linked dominant pattern, but most of the other reports are consistent with an autosomal dominant mode of inheritance. The medical therapy is poorly successful and, therefore, the surgical treatment is recommended for Currarino's syndrome.
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Affiliation(s)
- D Di Meglio
- Struttura Complessa di Chirurgia d'Urgenza, Ospedale Pediatrico Santobono, Naples
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Tramontano A. Screening strategies for catalytic antitransition-state analog antibodies. Methods Mol Biol 2003; 51:237-50. [PMID: 7581701 DOI: 10.1385/0-89603-275-2:237] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
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Abstract
The authors' starting point is a new surgical approach described by Foker and performed by them on a newborn with long-gap oesophageal atresia. We discuss the possibility of obtaining rapid growth of the atretic oesophagus and performing a primary anastomosis in the case of long-gap oesophageal atresia. With this procedure, primary oesophageal repair could be performed without myotomies, without flaps and with the gastrooesophageal junction below the diaphragm. The need for gastrostomy would be also eliminated if the patient underwent the operation as a neonate.
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Affiliation(s)
- G Gaglione
- Neonatal Surgical Unit, Santobono Children's Hospital, Naples, Italy.
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Abstract
We describe here the results of our analysis of the comparative modeling predictions submitted to the fourth round of Critical Assessment of Structure Prediction (CASP4). On the basis of a numerical evaluation of the models, we assessed their ability to predict the overall fold correctly, the relative orientation of domains in multidomain proteins, the conformation of the side chains, the loop regions, and the biologically important residues of the targets. We also discuss the performance of automatic prediction servers and compare the results of CASP4 with those obtained in CASP3.
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Affiliation(s)
- A Tramontano
- Department of Biochemical Sciences "A. Rossi Fanelli," University of Rome "La Sapienza," Rome, Italy.
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Abstract
Hepatitis C virus (HCV), a member of the Flaviviridae family, has been recognised to be responsible for both parenterally transmitted and sporadic non-A and non-B hepatitis affecting 1-3% of the world population. HCV is a positive stranded RNA virus encoding a single polyprotein which contains at least ten unique structural and non-structural proteins. Amongst these the structural protein E2 has been of special interest for vaccine development and the serine protease NS3, which is responsible for cleavage of the polyprotein, for the development of small molecule inhibitors. We will focus on the contribution of computational techniques and the use of structural information for the design and discovery of novel therapeutic agents for these targets. Both drug discovery and vaccine design efforts will be discussed taking into account also the problem of emerging resistance.
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Affiliation(s)
- A Lahm
- Istituto di Ricerche di Biologia Molecolare P. Angeletti, Pomezia, Italy
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Roccasecca R, Folgori A, Ercole BB, Puntoriero G, Lahm A, Zucchelli S, Tafi R, Pezzanera M, Galfre G, Tramontano A, Mondelli MU, Pessi A, Nicosia A, Cortese R, Meola A. Induction of cross-reactive humoral immune response by immunization with mimotopes of the hypervariable region 1 of the hepatitis C virus. Int Rev Immunol 2002; 20:289-300. [PMID: 11878771 DOI: 10.3109/08830180109043040] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Hepatitis C Virus (HCV) is a major cause of chronic hepatitis, liver cirrhosis and hepatocellular carcinoma, worldwide, and the development of an effective vaccine represents a high priority goal. The Hyper Variable Region 1 (HVR1) of the second Envelope protein (E2) of HCV contains a principal neutralizing determinant, but it is highly variable among different isolates and it is involved in the escape from host immune response. Thus, to be effective, a vaccine should elicit a cross-reacting humoral response against the majority of viral variants. We show that it is possible to achieve a broadly cross-reactive immune response in rabbits by immunization with mimotopes of the HVR1. selected from a specialized phage library using HCV patients' sera. At least some of the cross-reacting anti-mimotope antibodies, elicited in rabbits, recognize discontinuous epitopes in a manner similar to those induced by the virus in infected patients.
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Affiliation(s)
- R Roccasecca
- Istituto di Ricerche di Biologia Molecolare P. Angeletti, Pomezia, Roma, Italy
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