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Nikitin D, Lin GA, Whittington MD, Nhan E, Kayali Y, Rind DM, Pearson SD, Agboola F. The effectiveness and value of sotatercept for pulmonary arterial hypertension: A summary from the Institute for Clinical and Economic Review's Midwest Comparative Effectiveness Public Advisory Council. J Manag Care Spec Pharm 2024; 30:491-495. [PMID: 38701024 PMCID: PMC11068652 DOI: 10.18553/jmcp.2024.30.5.491] [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: 05/05/2024]
Affiliation(s)
| | - Grace A. Lin
- Institute for Clinical and Economic Review, Boston, MA
| | - Melanie D. Whittington
- Center for the Evaluation of Value and Risk in Health (CEVR), Tufts Medical Center, Boston, MA
| | - Emily Nhan
- Institute for Clinical and Economic Review, Boston, MA
| | | | - David M. Rind
- Institute for Clinical and Economic Review, Boston, MA
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2
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Nikitin D, Beaudoin FL, Thokala P, McKenna A, Nhan E, Rind DM, Pearson SD. Gene therapies for sickle cell disease: Effectiveness and value. J Manag Care Spec Pharm 2023; 29:1253-1259. [PMID: 37889869 PMCID: PMC10609928 DOI: 10.18553/jmcp.2023.29.11.1253] [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: 10/29/2023]
Abstract
DISCLOSURES: Drs. Nikitin, McKenna, Rind, Nhan, and Pearson report grants from Arnold Ventures, grants from Blue Cross Blue Shield of MA, grants from California Healthcare Foundation, grants from The Commonwealth Fund, grants from The Patrick and Catherine Weldon Donaghue Medical Research Foundation, during the conduct of the study; other from America's Health Insurance Plans, other from Anthem, other from AbbVie, other from Alnylam, other from AstraZeneca, other from Biogen, other from Blue Shield of CA, other from CVS, other from Editas, other from Express Scripts, other from Genentech/Roche, other from GlaxoSmithKline, other from Harvard Pilgrim, other from Health Care Service Corporation, other from Kaiser Permanente, other from LEO Pharma, other from Mallinckrodt, other from Merck, other from Novartis, other from National Pharmaceutical Council, other from Premera, other from Prime Therapeutics, other from Regeneron, other from Sanofi, other from United Healthcare, other from HealthFirst, other from Pfizer, other from Boehringer-Ingelheim, other from uniQure, other from Envolve Pharmacy Solutions, other from Humana, other from Sunlife, outside the submitted work.
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Affiliation(s)
| | | | - Praveen Thokala
- Centre for Health Economics, University of York, United Kingdom
| | - Avery McKenna
- Institute for Clinical and Economic Review, Boston, MA
| | - Emily Nhan
- Institute for Clinical and Economic Review, Boston, MA
| | - David M. Rind
- Institute for Clinical and Economic Review, Boston, MA
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McKenna A, Lin GA, Whittington MD, Nikitin D, Herron-Smith S, Campbell JD, Agboola F, Pearson SD. Oral and monoclonal antibody treatments for relapsing forms of multiple sclerosis: Effectiveness and value. J Manag Care Spec Pharm 2023; 29:857-861. [PMID: 37404068 PMCID: PMC10387920 DOI: 10.18553/jmcp.2023.29.7.857] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/06/2023]
Abstract
DISCLOSURES: Ms McKenna, Dr Lin, Dr Whittington, Mr Nikitin, Ms Herron-Smith, Dr Campbell, and Dr Peterson report grants from Arnold Ventures, grants from Blue Cross Blue Shield of MA, grants from California Healthcare Foundation, grants from The Commonwealth Fund, and grants from The Peterson Center on Healthcare, during the conduct of the study; other from America's Health Insurance Plans, other from Anthem, other from AbbVie, other from Alnylam, other from AstraZeneca, other from Biogen, other from Blue Shield of CA, other from CVS, other from Editas, other from Express Scripts, other from Genentech/Roche, other from GlaxoSmithKline, other from Harvard Pilgrim, other from Health Care Service Corporation, other from Kaiser Permanente, other from LEO Pharma, other from Mallinckrodt, other from Merck, other from Novartis, other from National Pharmaceutical Council, other from Premera, other from Prime Therapeutics, other from Regeneron, other from Sanofi, other from United Healthcare, other from HealthFirst, other from Pfizer, other from Boehringer-Ingelheim, other from uniQure, other from Envolve Pharmacy Solutions, other from Humana, and other from Sun Life, outside the submitted work.
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Affiliation(s)
- Avery McKenna
- Institute for Clinical and Economic Review, Boston, MA
| | - Grace A Lin
- Department of Medicine and Philip R Lee Institute for Health Policy Studies, University of California, San Francisco
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4
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Nikitin D, Makam AN, Suh K, McKenna A, Carlson JJ, Richardson M, Rind DM, Pearson SD. The effectiveness and value of AMX0035 and oral edaravone for amyotrophic lateral sclerosis: A summary from the Institute for Clinical and Economic Review's Midwest Comparative Effectiveness Public Advisory Council. J Manag Care Spec Pharm 2023; 29:216-221. [PMID: 36705279 PMCID: PMC10387989 DOI: 10.18553/jmcp.2023.29.2.216] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
DISCLOSURES: Funding for this summary was contributed by Blue Cross Blue Shield of MA, California Healthcare Foundation, The Patrick and Catherine Weldon Donaghue Medical Research Foundation, Arnold Ventures, and Kaiser Foundation Health Plan Inc., to the Institute for Clinical and Economic Review (ICER), an independent organization that evaluates the evidence on the value of health care interventions. ICER's annual policy summit is supported by dues from Aetna, America's Health Insurance Plans, AbbVie, Alnylam, AstraZeneca, Biogen, Blue Shield of CA, Boehringer Ingelheim, Cambia Health Services, CVS, Editas, Evolve Pharmacy Solutions, Express Scripts, Genentech/ Roche, GlaxoSmithKline, Harvard Pilgrim, Health Care Service Corporation, Health First, Health Partners, Humana, Johnson & Johnson (Janssen), Kaiser Permanente, LEO Pharma, Mallinckrodt, Merck, Novartis, National Pharmaceutical Council, Pfizer. Premera, Prime Therapeutics, Regeneron, Sanofi, Spark Therapeutics, Sun Life Financial, uniQure, and United Healthcare. Mr Nikitin, Ms McKenna, Ms Richardson, and Drs Rind and Pearson are employed by ICER. Through their affiliated institutions, Drs Makam, Carlson, and Suh received funding from ICER for the work described in this summary.
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Affiliation(s)
| | - Anil N Makam
- Division of Hospital Medicine, San Francisco General Hospital, University of California and Philip R Lee Institute for Health Policy Studies, University of California San Francisco
| | - Kangho Suh
- School of Pharmacy, University of Pittsburgh, PA
| | - Avery McKenna
- Institute for Clinical and Economic Review, Boston, MA
| | - Josh J Carlson
- Comparative Health Outcomes, Policy, and Economics (CHOICE) Institute, School of Pharmacy, University of Washington, Seattle
| | | | - David M Rind
- Institute for Clinical and Economic Review, Boston, MA
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Bolatova Z, Pak A, Larionov K, Nikitin D, Povalyaev P, Ivashutenko A, Mamontov G, Pestryakov A. Ash and Slag Waste Processing in Self-Shielded Atmospheric DC Arc Discharge Plasma. Materials (Basel) 2022; 15:8134. [PMID: 36431620 PMCID: PMC9698856 DOI: 10.3390/ma15228134] [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] [Subscribe] [Scholar Register] [Received: 10/04/2022] [Revised: 11/14/2022] [Accepted: 11/14/2022] [Indexed: 06/16/2023]
Abstract
In this paper, we report the experimental results obtained in slag waste processing by direct current arc discharge initiated in ambient air. The method does not employ vacuum and gas equipment, therefore increasing the energy efficiency of processing. Plasma processing of coal slag was performed at different arc exposure times: 5, 10, 15, 20, and 25 s. The obtained materials contained a significant amount of graphite, which was removed through combustion. The micropowder based on silicon carbide and aluminum nitride was obtained and then sintered by spark plasma. The bulk ceramic samples based on silicon carbide with the hardness of ~10.4 GPa were finally fabricated.
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Affiliation(s)
- Zhanar Bolatova
- School of Energy & Power Engineering, Tomsk Polytechnic University, 634050 Tomsk, Russia
| | - Alexander Pak
- School of Energy & Power Engineering, Tomsk Polytechnic University, 634050 Tomsk, Russia
| | - Kirill Larionov
- School of Energy & Power Engineering, Tomsk Polytechnic University, 634050 Tomsk, Russia
| | - Dmitriy Nikitin
- School of Energy & Power Engineering, Tomsk Polytechnic University, 634050 Tomsk, Russia
| | - Pavel Povalyaev
- School of Energy & Power Engineering, Tomsk Polytechnic University, 634050 Tomsk, Russia
| | - Aleksander Ivashutenko
- School of Energy & Power Engineering, Tomsk Polytechnic University, 634050 Tomsk, Russia
| | - Gennady Mamontov
- School of Energy & Power Engineering, Tomsk Polytechnic University, 634050 Tomsk, Russia
| | - Alexey Pestryakov
- School of Energy & Power Engineering, Tomsk Polytechnic University, 634050 Tomsk, Russia
- Research Lab of Catalytic and Biomedical Technologies, Sevastopol State University, 299053 Sevastopol, Russia
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Košutová T, Horák L, Krtouš Z, Kuzminova A, Khomiakova N, Nikitin D, Hanuš J, Kylián O, Dopita M. Thermal evolution of bilayers composed of f.c.c. nanoparticles studied by X-ray scattering methods. Acta Cryst Sect A 2022. [DOI: 10.1107/s2053273322090362] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/19/2023]
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Nikitin D, Lin GA, Campbell JD, Hansen RN, Brouwer E, Chen Y, Herron-Smith S, Agboola F, Pearson SD. The effectiveness and value of tirzepatide for type 2 diabetes mellitus. J Manag Care Spec Pharm 2022; 28:680-684. [PMID: 35621725 PMCID: PMC10373002 DOI: 10.18553/jmcp.2022.28.6.680] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
| | - Grace A Lin
- Institute for Clinical and Economic Review, Boston, MA
- Department of Medicine and Philip R Lee Institute for Health Policy Studies, University of California, San Francisco
| | | | - Ryan N Hansen
- CHOICE Institute, Department of Pharmacy, University of Washington, Seattle
| | - Elizabeth Brouwer
- CHOICE Institute, Department of Pharmacy, University of Washington, Seattle
| | - Yilin Chen
- CHOICE Institute, Department of Pharmacy, University of Washington, Seattle
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Tice JA, Touchette DR, Lien PW, Agboola F, Nikitin D, Pearson SD. The effectiveness and value of eculizumab and efgartigimod for generalized myasthenia gravis. J Manag Care Spec Pharm 2021; 28:119-124. [PMID: 34949112 PMCID: PMC10373007 DOI: 10.18553/jmcp.2022.28.1.119] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
DISCLOSURES: Funding for this summary was contributed by Arnold Ventures, The Donaghue Foundation, Harvard Pilgrim Health Care, and Kaiser Foundation Health Plan to the Institute for Clinical and Economic Review (ICER), an independent organization that evaluates the evidence on the value of health care interventions. ICER's annual policy summit is supported by dues from AbbVie, America's Health Insurance Plans, Anthem, Alnylam, AstraZeneca, Biogen, Blue Shield of CA, Boehringer-Ingelheim, Cambia Health Services, CVS, Editas, Evolve Pharmacy, Express Scripts, Genentech/Roche, GlaxoSmithKline, Harvard Pilgrim, Health Care Service Corporation, HealthFirst, Health Partners, Humana, Johnson & Johnson (Janssen), Kaiser Permanente, LEO Pharma, Mallinckrodt, Merck, Novartis, National Pharmaceutical Council, Pfizer, Premera, Prime Therapeutics, Regeneron, Sanofi, Sun Life Financial, uniQure, and United Healthcare. Agboola, Nikitin, and Pearson are employed by ICER. Through their affiliated institutions, Tice, Touchette, and Lien received funding from ICER for the work described in this summary.
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Affiliation(s)
- Jeffrey A Tice
- Division of General Internal Medicine, University of California San Francisco
| | | | - Pei-Wen Lien
- University of Illinois at Chicago College of Pharmacy, Chicago, IL
| | - Foluso Agboola
- Institute for Clinical and Economic Review (ICER), Boston, MA
| | - Dmitriy Nikitin
- Institute for Clinical and Economic Review (ICER), Boston, MA
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Williams RS, Nikitin D. The internet market for Kratom, an opioid alternative and variably legal recreational drug. Int J Drug Policy 2020; 78:102715. [PMID: 32182543 DOI: 10.1016/j.drugpo.2020.102715] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2019] [Revised: 02/18/2020] [Accepted: 02/24/2020] [Indexed: 12/16/2022]
Abstract
BACKGROUND Amidst the opioid crisis, many people are turning to plant-based kratom for self-treatment of pain, opioid addiction, and for recreational use. Its legality is variable and its safety and medicinal effects are not agreed upon. It is broadly available from Internet Kratom Vendors (IKVs). METHODS An examination of the online marketplace for kratom was conducted to provide context to the market amidst regulatory attempts by the Food and Drug Administration (FDA) and state legislatures. A complex search strategy identified 663 English-language IKVs selling kratom for home delivery. The 100 most popular were selected for in-depth content analysis. IKVs were visited once for content analysis data collection in December, 2017 and revisited in April 2018 to assess responses to FDA action. IKV website and social media profiles were coded for topics including location, payment and shipping options, age verification, health warnings and disclaimers, and grassroots advocacy regarding upcoming state/federal regulations. RESULTS Forty-seven percent of IKVs claimed that kratom provides pain relief, 25% claimed it provides relief from opioid withdrawal, 81% featured a disclaimer that kratom is addictive, 54% stated that kratom is not FDA approved, and 66% featured disclaimers that it was not intended for consumption. Only 5% of vendors advertised effective age verification (such as verifying age at delivery). Compliance on the vendor's part with state and local bans varied by ban location, with only 27% prohibiting sales to Rhode Island while 65% did not ship to Indiana. CONCLUSIONS IKVs provide easy access to a wide variety of unregulated intoxicating products with poor age verification and low adherence to US state- and local-level restrictions. There is a high prevalence of vendors featuring health claims forbidden by the Food and Drug Administration. Lessons learned from regulating the Internet cigarette sales industry could be effectively applied to IKVs with future efforts.
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Affiliation(s)
- Rebecca S Williams
- Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, CB7424, Chapel Hill, NC 27599, United States; Center for Health Promotion and Disease Prevention, University of North Carolina at Chapel Hill, CB 7426, Chapel Hill, NC 27599, United States.
| | - Dmitriy Nikitin
- Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, CB7424, Chapel Hill, NC 27599, United States; Department of Health Policy and Management, Gillings School of Global Public Health University of North Carolina at Chapel Hill, CB 7411, Chapel Hill, NC 27599, United States
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Nikitin D, Omelchenko I, Zakharova A, Avetyan M, Fradkov AL, Schöll E. Complex partial synchronization patterns in networks of delay-coupled neurons. Philos Trans A Math Phys Eng Sci 2019; 377:20180128. [PMID: 31329071 PMCID: PMC6661322 DOI: 10.1098/rsta.2018.0128] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 05/21/2019] [Indexed: 05/26/2023]
Abstract
We study the spatio-temporal dynamics of a multiplex network of delay-coupled FitzHugh-Nagumo oscillators with non-local and fractal connectivities. Apart from chimera states, a new regime of coexistence of slow and fast oscillations is found. An analytical explanation for the emergence of such coexisting partial synchronization patterns is given. Furthermore, we propose a control scheme for the number of fast and slow neurons in each layer. This article is part of the theme issue 'Nonlinear dynamics of delay systems'.
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Affiliation(s)
- D. Nikitin
- Saint Petersburg State University, Saint Petersburg, Russia
| | - I. Omelchenko
- Institut für Theoretische Physik, Technische Universität Berlin, 10623 Berlin, Germany
| | - A. Zakharova
- Institut für Theoretische Physik, Technische Universität Berlin, 10623 Berlin, Germany
| | - M. Avetyan
- Saint Petersburg State University, Saint Petersburg, Russia
| | - A. L. Fradkov
- Saint Petersburg State University, Saint Petersburg, Russia
- Institute for Problems of Mechanical Engineering, Saint Petersburg, Russia
| | - E. Schöll
- Institut für Theoretische Physik, Technische Universität Berlin, 10623 Berlin, Germany
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Ivanov P, Zubatkina I, Kuzmin A, Nikitin D, Krasnyuk V, Andreev G, Schepinov F. OC-0592: Hypofractionated stereotactic radiotherapy of large brain metastases: analysis of 350 patients. Radiother Oncol 2018. [DOI: 10.1016/s0167-8140(18)30902-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Phan TM, Bianco CA, Nikitin D, Timberlake DS. Arguments for amending smoke-free legislation in U.S. states to restrict use of electronic nicotine delivery systems. Prev Med Rep 2018. [PMID: 29527461 PMCID: PMC5840844 DOI: 10.1016/j.pmedr.2017.12.006] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
Abstract
The uneven diffusion of local and state laws restricting the use of electronic nicotine delivery systems (ENDS) in the United States may be a function of inconclusive scientific evidence and lack of guidance from the federal government. The objective of this study was to assess whether the rationale for amending clean indoor air acts (CIAAs) is being conflated by issues that are not directly relevant to protecting the health of ENDS non-users. Online sources were used in identifying bills (n = 25) that were presented in U.S. state legislatures from January 2009 to December 2015. The bills were categorized into one of three groups: 1) bills amending comprehensive CIAAs (n = 11), 2) bills prohibiting use of ENDS in places frequented by youth (n = 5), and 3) remaining bills that varied between the two categories (n = 9). Arguments presented in committee hearings were coded as scientific, public health, economic, enforcement, freedom, or regulatory. Arguments pertaining to amendment of clean indoor air acts spanned several categories, many of which were not directly relevant to the aims of the legislation. This finding could assist lawmakers and expert witnesses in making arguments that yield greater success in amending legislation. Alternatively, inconclusive scientific data on the hazards of ENDS aerosols might encourage lawmakers to propose legislation that prohibits ENDS use in places frequented by youths. Arguments pertaining to amendment of smoke-free laws spanned several categories. Harm reduction was used often in opposing amendments to smoke-free laws. Arguments pertaining to harm of ENDS aerosols were obfuscated by conflicting data. Lawmakers should consider legislation prohibiting ENDS use in youth-oriented places.
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Affiliation(s)
- Tiffany M Phan
- Program in Public Health, University of California, Irvine, Irvine, CA, USA
| | - Cezanne A Bianco
- Program in Public Health, University of California, Irvine, Irvine, CA, USA
| | - Dmitriy Nikitin
- Department of Health Policy and Management, Gillings School of Global Public Health University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - David S Timberlake
- Program in Public Health, University of California, Irvine, Irvine, CA, USA
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Timberlake DS, Nikitin D, Garcia-Cano J, Cino S, Savkina M, Pechmann C. Linking the content to demographic reach of online advertising of electronic nicotine delivery systems. Tob Control 2017. [PMID: 28634162 DOI: 10.1136/tobaccocontrol-2016-053473] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
INTRODUCTION Recent studies have separately examined the content and demographic reach of the advertising of electronic nicotine delivery systems (ENDS). No study to our knowledge has linked the two in investigating whether racial/ethnic groups are differentially exposed to the comparative messages conveyed in online ENDS advertisements. METHODS 932 unique ENDS advertisements (6311 total), which were posted on 3435 websites between December, 2009 and October, 2015, were categorized as either comparative or non-comparative with respect to the traditional cigarette. The race/ethnicity of website visitors was obtained from a proprietary source and used in constructing variables for racial/ethnic viewership. The variables for advertising content and website racial/ethnic viewership were then linked yielding a final sample of 551 unique ENDS advertisements (2498 total) on 1206 websites. A two-level hierarchical generalized linear model, used in estimating website racial/ethnic viewership as a predictor of comparative advertising, accounted for the nesting of advertisements (level 1) within 152 ENDS brands (level 2). RESULTS In contrast to racial/ethnic minorities, a greater proportion of non-Hispanic whites visited websites with ENDS advertisements than the overall proportion of nonHispanic white U.S. Internet users. Yet, it was the advertisements on websites that appealed to Hispanics that had greater odds of comparing ENDS to traditional cigarettes. CONCLUSIONS The lower exposure to ENDS advertising among racial/ethnic minorities versus non-Hispanic whites is consistent with survey data. Yet, the greater odds of comparative advertising of ENDS on websites that appeal to racial/ethnic minorities (ie, Hispanics) could impact the longterm health of minority smokers. IMPLICATIONS This study's findings have important implications for the uptake of ENDS among minority smokers. If the comparative advertising yields greater interest and eventual use of ENDS, then minority smokers could either benefit from smoking cessation because they switch to ENDS, or adopt dual tobacco use. The fate of comparative advertising of ENDS versus the traditional cigarette will depend on the Food and Drug Administration enforcement of its deeming rules and the ensuing changes in the ENDS marketplace.
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Affiliation(s)
- David S Timberlake
- Program in Public Health, University of California, Irvine, California, USA
| | - Dmitriy Nikitin
- Department of Health Policy and Management, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
| | | | - Samantha Cino
- Program in Public Health, University of California, Irvine, California, USA
| | - Margarita Savkina
- Program in Public Health, University of California, Irvine, California, USA
| | - Cornelia Pechmann
- The Paul Merage School of Business, University of California, Irvine, California, USA
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Timberlake DS, Nikitin D, Johnson NJ, Altekruse SF. A longitudinal study of smokeless tobacco use and mortality in the United States. Int J Cancer 2017; 141:264-270. [PMID: 28411395 DOI: 10.1002/ijc.30736] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2017] [Revised: 03/20/2017] [Accepted: 04/03/2017] [Indexed: 01/31/2023]
Abstract
Few studies in the United States have examined longitudinally the mortality risks associated with use of smokeless tobacco (SLT). The sample of our study was composed of participants from the National Longitudinal Mortality Study who completed a single Tobacco Use Supplement to the Current Population Survey between the years 1985 and 2011. Using survival methods, SLT use at the baseline survey was examined as a predictor of all-cause mortality and cause-specific mortalities in models that excluded individuals who had ever smoked cigarettes, cigars or used pipes (final n = 349,282). The participants had median and maximum follow-up times of 8.8 and 26.3 years, respectively. Regression analyses indicated that compared to the never tobacco users, the current SLT users did not have elevated mortality risks from all cancers combined, the digestive system cancers and cerebrovascular disease. However, current SLT users had a higher mortality risk for coronary heart disease (CHD) [hazard ratio (HR) (95% CI) = 1.24 (1.05, 1.46)] relative to never tobacco users. In a separate model, the elevated risk for CHD mortality corresponded to the use of moist snuff [HR (95% CI) = 1.30 (1.03, 1.63)]. The associations with CHD mortality could be attributed to long-term nicotine exposure, other SLT constituents (e.g., metals) or the confounding effects of CHD risk factors not accounted for in our study. The study's findings contribute to the ongoing dialogue on tobacco harm reduction and the US FDA's evaluation of Modified Risk Tobacco Product applications submitted by American SLT manufacturers.
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Affiliation(s)
| | - Dmitriy Nikitin
- School of Public Health, University of North Carolina at Chapel Hill, Chapel Hill, NC
| | | | - Sean F Altekruse
- Division of Cancer Control and Population Sciences, National Cancer Institute, Bethesda, MD
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Choukourov A, Kylián O, Petr M, Vaidulych M, Nikitin D, Hanuš J, Artemenko A, Shelemin A, Gordeev I, Kolská Z, Solař P, Khalakhan I, Ryabov A, Májek J, Slavínská D, Biederman H. RMS roughness-independent tuning of surface wettability by tailoring silver nanoparticles with a fluorocarbon plasma polymer. Nanoscale 2017; 9:2616-2625. [PMID: 28155944 DOI: 10.1039/c6nr08428a] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
A layer of 14 nm-sized Ag nanoparticles undergoes complex transformation when overcoated by thin films of a fluorocarbon plasma polymer. Two regimes of surface evolution are identified, both with invariable RMS roughness. In the early regime, the plasma polymer penetrates between and beneath the nanoparticles, raising them above the substrate and maintaining the multivalued character of the surface roughness. The growth (β) and the dynamic (1/z) exponents are close to zero and the interface bears the features of self-affinity. The presence of inter-particle voids leads to heterogeneous wetting with an apparent water contact angle θa = 135°. The multivalued nanotopography results in two possible positions for the water droplet meniscus, yet strong water adhesion indicates that the meniscus is located at the lower part of the spherical nanofeatures. In the late regime, the inter-particle voids become filled and the interface acquires a single valued character. The plasma polymer proceeds to grow on the thus-roughened surface whereas the nanoparticles keep emerging away from the substrate. The RMS roughness remains invariable and lateral correlations propagate with 1/z = 0.27. The surface features multiaffinity which is given by different evolution of length scales associated with the nanoparticles and with the plasma polymer. The wettability turns to the homogeneous wetting state.
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Affiliation(s)
- A Choukourov
- Charles University, Faculty of Mathematics and Physics, Department of Macromolecular Physics, V Holešovičkách 2, 18000 Prague, Czech Republic.
| | - O Kylián
- Charles University, Faculty of Mathematics and Physics, Department of Macromolecular Physics, V Holešovičkách 2, 18000 Prague, Czech Republic.
| | - M Petr
- Charles University, Faculty of Mathematics and Physics, Department of Macromolecular Physics, V Holešovičkách 2, 18000 Prague, Czech Republic.
| | - M Vaidulych
- Charles University, Faculty of Mathematics and Physics, Department of Macromolecular Physics, V Holešovičkách 2, 18000 Prague, Czech Republic.
| | - D Nikitin
- Charles University, Faculty of Mathematics and Physics, Department of Macromolecular Physics, V Holešovičkách 2, 18000 Prague, Czech Republic.
| | - J Hanuš
- Charles University, Faculty of Mathematics and Physics, Department of Macromolecular Physics, V Holešovičkách 2, 18000 Prague, Czech Republic.
| | - A Artemenko
- Institute of Physics, Academy of Sciences of the Czech Republic, Cukrovarnická 10, 16200 Prague, Czech Republic
| | - A Shelemin
- Charles University, Faculty of Mathematics and Physics, Department of Macromolecular Physics, V Holešovičkách 2, 18000 Prague, Czech Republic.
| | - I Gordeev
- Institute of Physics, Academy of Sciences of the Czech Republic, Cukrovarnická 10, 16200 Prague, Czech Republic
| | - Z Kolská
- J. E. Purkyne University, Faculty of Science, České mládeže 8, 40096 Ústí nad Labem, Czech Republic
| | - P Solař
- Charles University, Faculty of Mathematics and Physics, Department of Macromolecular Physics, V Holešovičkách 2, 18000 Prague, Czech Republic.
| | - I Khalakhan
- Charles University, Faculty of Mathematics and Physics, Department of Surface and Plasma Science, V Holešovičkách 2, 18000 Prague, Czech Republic
| | - A Ryabov
- Charles University, Faculty of Mathematics and Physics, Department of Macromolecular Physics, V Holešovičkách 2, 18000 Prague, Czech Republic.
| | - J Májek
- Charles University, Faculty of Mathematics and Physics, Department of Macromolecular Physics, V Holešovičkách 2, 18000 Prague, Czech Republic.
| | - D Slavínská
- Charles University, Faculty of Mathematics and Physics, Department of Macromolecular Physics, V Holešovičkách 2, 18000 Prague, Czech Republic.
| | - H Biederman
- Charles University, Faculty of Mathematics and Physics, Department of Macromolecular Physics, V Holešovičkách 2, 18000 Prague, Czech Republic.
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Nikitin D, Choukourov A, Titov V, Kuzmicheva L, Lipatova I, Mezina E, Aleksandriiskii V, Shelemin A, Khalakhan I, Slavinska D, Biederman H. In situ coupling of chitosan onto polypropylene foils by an Atmospheric Pressure Air Glow Discharge with a liquid cathode. Carbohydr Polym 2016; 154:30-9. [PMID: 27577893 DOI: 10.1016/j.carbpol.2016.08.023] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2016] [Revised: 08/08/2016] [Accepted: 08/08/2016] [Indexed: 11/15/2022]
Abstract
Atmospheric air plasma treatment of chitosan solutions leads to degradation of chitosan molecules by OH radicals and is accompanied by a predominant cleavage of glycosidic linkages and by a decrease of the molecular weight. The degradation proceeds via first order kinetics with the rate constant of (5.73±0.22)×10(-6)s(-1) and the energetic yield of chitosan bond scission of (2.4±0.2)×10(-8)mol/J. Products of degradation together with intact chitosan molecules adsorb and form coatings on polypropylene foils immersed into the solution that is being plasma treated. The plasma treatment results in strong binding of chitosan to polypropylene due to the formation of covalent bonds between the activated polymer surface and chitosan molecules. Plasma-driven crosslinking is responsible for the accumulation of compressive stress which leads to the development of buckling instabilities in the chitosan coatings.
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Affiliation(s)
- D Nikitin
- G. A. Krestov Institute of Solution Chemistry of the Russian Academy of Sciences, Akademicheskaya 1, 153045 Ivanovo, Russia; Charles University in Prague, Faculty of Mathematics and Physics, Department of Macromolecular Physics, V Holešovičkách 2, 18000 Prague, Czech Republic
| | - A Choukourov
- Charles University in Prague, Faculty of Mathematics and Physics, Department of Macromolecular Physics, V Holešovičkách 2, 18000 Prague, Czech Republic.
| | - V Titov
- G. A. Krestov Institute of Solution Chemistry of the Russian Academy of Sciences, Akademicheskaya 1, 153045 Ivanovo, Russia
| | - L Kuzmicheva
- G. A. Krestov Institute of Solution Chemistry of the Russian Academy of Sciences, Akademicheskaya 1, 153045 Ivanovo, Russia
| | - I Lipatova
- G. A. Krestov Institute of Solution Chemistry of the Russian Academy of Sciences, Akademicheskaya 1, 153045 Ivanovo, Russia
| | - E Mezina
- G. A. Krestov Institute of Solution Chemistry of the Russian Academy of Sciences, Akademicheskaya 1, 153045 Ivanovo, Russia
| | - V Aleksandriiskii
- G. A. Krestov Institute of Solution Chemistry of the Russian Academy of Sciences, Akademicheskaya 1, 153045 Ivanovo, Russia
| | - A Shelemin
- Charles University in Prague, Faculty of Mathematics and Physics, Department of Macromolecular Physics, V Holešovičkách 2, 18000 Prague, Czech Republic
| | - I Khalakhan
- Charles University in Prague, Faculty of Mathematics and Physics, Department of Surface and Plasma Science, V Holešovičkách 2, 18000 Prague, Czech Republic
| | - D Slavinska
- Charles University in Prague, Faculty of Mathematics and Physics, Department of Macromolecular Physics, V Holešovičkách 2, 18000 Prague, Czech Republic
| | - H Biederman
- Charles University in Prague, Faculty of Mathematics and Physics, Department of Macromolecular Physics, V Holešovičkách 2, 18000 Prague, Czech Republic
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17
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Nikitin D, Timberlake DS, Williams RS. Is the E-Liquid Industry Regulating Itself? A Look at E-Liquid Internet Vendors in the United States. Nicotine Tob Res 2016; 18:1967-72. [PMID: 26995792 DOI: 10.1093/ntr/ntw091] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2015] [Accepted: 03/11/2016] [Indexed: 11/14/2022]
Abstract
INTRODUCTION The objective of this study was to assess whether the nascent, but rapidly growing e-liquid industry prohibits Internet sales to minors and employs safety measures to prevent accidental poisonings. METHODS A stratified simple random sample (n = 120) was selected from the target population (N = 1107) of US online vendors of e-liquid in July 2015. The vendors were stratified and subsequently oversampled by trade association membership and vendor popularity. Three minors aged 16 to 17, who were supervised by adult research staff, attempted to purchase e-liquid from the 120 online vendors using debit cards issued in their names. Measures included vendors' use of age verification, warning labels on e-liquid bottles, and child-resistant packaging. RESULTS Statistically significant differences were observed by vendor popularity, but not by membership in a trade association. The differences by vendor popularity, however, occurred for measures that were limited to an age warning and list of ingredients. The most striking finding was the scant vendors (n = 4) who successfully prevented the sale of e-liquid to the minors. In contrast, 87.5% and 53.9% of the bottles contained child-resistant packaging and a health warning label, respectively. CONCLUSIONS Irrespective of trade association membership or vendor popularity, online vendors of e-liquids are not taking the proper precautions in preventing sales to minors. The FDA's upcoming deeming rules on e-cigarette products should include explicit requirements for offline and online e-liquid vendors, particularly the use of effective age verification, warning labels, and child-resistant packaging. IMPLICATIONS This study demonstrates that, in the absence of any current FDA regulation of e-liquid products, self-regulation among vendors is not effective in preventing product acquisition by minors. Lax oversight of the e-liquid industry may draw consumers to bypass current tobacco control restrictions implemented in face-to-face sales settings. As a consequence, there may be an increase in online sales to minors. Further regulation of the industry may increase the already prevalent use of child-resistant packaging, leading to fewer cases of accidental nicotine poisoning.
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Affiliation(s)
- Dmitriy Nikitin
- Department of Population Health and Disease Prevention, Program in Public Health, University of California, Irvine, CA;
| | - David S Timberlake
- Department of Population Health and Disease Prevention, Program in Public Health, University of California, Irvine, CA
| | - Rebecca S Williams
- Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, NC; Center for Health Promotion and Disease Prevention, University of North Carolina at Chapel Hill, Chapel Hill, NC
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18
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Sanchez EQ, Fischbach BV, Narasimhan G, Chinnakotla S, Nikitin D, Khan T, Randall HB, McKenna GJ, Ruiz R, Goldstein RM, Klintmalm GB, Levy MF. Use of two expanded-criteria-donor renal allografts in a single patient. Proc (Bayl Univ Med Cent) 2011; 20:240-3. [PMID: 17637877 PMCID: PMC1906572 DOI: 10.1080/08998280.2007.11928296] [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: 10/18/2022] Open
Abstract
The disparity between the number of available renal donors and the number of patients on the transplant waiting list has prompted the use of expanded-criteria-donor (ECD) renal allografts to expand the donor pool. ECD allografts have shown good results in appropriately selected recipients, yet a number of renal allografts are still discarded. The use of dual renal transplantation may lower the discard rate. Additionally, the use of perfusion systems may improve acute tubular necrosis rates with these allografts. We report a successful case of a dual transplant with ECD allografts using a perfusion system. The biopsy appearance and the pump characteristics were suboptimal for these kidneys, making them unsuitable for single transplantation; however, the pair of transplanted kidneys provided increased nephron mass and functioned well. We recommend that ECD kidneys that are individually nontransplantable be evaluated for potential dual renal transplantation. Biopsy criteria and perfusion data guidelines must be developed to improve the success rates with ECD dual renal allografts. Finally, recipient selection is of utmost importance.
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Sanchez EQ, Chinnakotla S, Khan T, Nikitin D, Vasani S, Randall HB, McKenna GJ, Ruiz R, Onaca N, Levy MF, Goldstein RM, Docherty JC, Hurd DK, Klintmalm GB. Intraoperative imaging of pancreas transplant allografts using indocyanine green with laser fluorescence. Proc (Bayl Univ Med Cent) 2011; 21:258-60. [PMID: 18628923 DOI: 10.1080/08998280.2008.11928406] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
Abstract
Vascular thrombosis is a cause of allograft loss after pancreas transplantation. We present the use of intraoperative fluorescence imaging with the SPY imaging device (Novadaq Technologies Inc, Toronto, Canada) in two pancreas transplants as a means to assess potency of the vascular anastomoses. Intravenous indocyanine green 2.5 mg/mL was fluoresced with the device to create the intraoperative video sequences, which were recorded. After 60-day follow-up, real-time SPY imaging on these two pancreas transplants did not demonstrate adverse effects on patients or the transplanted allografts. This method of vascular imaging could prove useful in improving short-term graft survival and possibly lowering the thrombosis rates seen with pancreas transplantation. Long-term correlation studies between intraoperative findings and graft survival must be performed to confirm the utility of this imaging method.
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Affiliation(s)
- Edmund Q Sanchez
- Baylor Regional Transplant Institute, Baylor University Medical Center, Dallas, Texas, USA.
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Nikitin D, Jennings LW, Khan T, Vasani S, Ruiz R, Sanchez EQ, Chinnakotla S, Levy MF, Goldstein RM, Klintmalm GB. Twenty years' follow-up of portal vein conduits in liver transplantation. Liver Transpl 2009; 15:400-6. [PMID: 19326411 DOI: 10.1002/lt.21698] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Portal vein problems remain a formidable challenge in liver transplantation. In select situations, a portal vein conduit can provide a solution. No long-term results have been reported. This study was designed to assess the impact of portal vein conduits on graft survival after liver transplantation and the safety of portal vein conduits and to establish the long-term results (up to 20 years) of portal vein conduits. Data from 2370 adult liver transplants were prospectively collected into a computerized research database and analyzed. All portal vein conduits were constructed from the donor iliac vein obtained at the liver retrieval. Portal vein conduits were required in 35 (1.5%) first transplants. The long-term (up to 20 years of follow-up) graft survival after liver transplantation using portal vein conduits was excellent and comparable to that of the control group. The graft survival was 65% with the conduit versus 66% without the conduit at 5 years of follow-up, 58% versus 51% at 10 years, and 48% versus 35% at 15 years. There was a higher rate (8.6% versus 1.4%) of portal vein thrombosis after the portal vein conduit, and the majority occurred in the first 3 months after transplantation. For the same time period, there was no statistically significant difference in graft survival or patient survival for the retransplants with and without portal vein conduits. There was no statistically significant difference in graft survival or patient survival for the transplants with portal vein conduits and with portal vein thrombendvenectomy. In conclusion, portal vein conduits can be used safely for liver transplantation with no negative impact on long-term graft survival or patient survival. Despite the higher rate of portal vein thrombosis in the immediate postoperative period, excellent long-term results can be obtained.
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Affiliation(s)
- Dmitriy Nikitin
- Baylor Regional Transplant Institute, Dallas/Ft. Worth, TX 75246, USA
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21
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Nikitin D, Jennings LW, Khan T, Sanchez EQ, Chinnakotla S, Randall HB, McKenna GJ, Goldstein RM, Levy MF, Klintmalm GB. Twenty years of follow-up of aortohepatic conduits in liver transplantation. Liver Transpl 2008; 14:1486-90. [PMID: 18825707 DOI: 10.1002/lt.21575] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.2] [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: 02/07/2023]
Abstract
Arterial problems remain a formidable challenge in liver transplantation. In many situations, an aortohepatic conduit can provide a solution. No long-term results (over 5 years) have been reported. This study was designed to assess the impact of aortohepatic conduits on graft survival after liver transplantation and the safety of aortohepatic conduits and to establish the long-term results (up to 20 years) of aortohepatic conduits. Data from 2346 adult liver transplants were prospectively collected into the computerized database and analyzed. In the majority of cases, arterial conduits were constructed from the donor iliac artery obtained at the liver retrieval. Aortohepatic conduits were required in 149 (6.4%) first transplants. The long-term graft survival after liver transplantation using aortohepatic conduits was excellent and comparable to that of the control group. The graft survival was 59% with the conduit versus 67% without the conduit at 5 years of follow-up, 50% versus 52% at 10 years, and 33% versus 35% at 15 years. With up to 20 years of follow-up, there was no statistically significant difference in graft survival, patient survival, hepatic artery complications, or biliary complications. For the same time period, there was no statistically significant difference in graft survival or patient survival for the retransplants with and without aortohepatic conduits. In conclusion, in experienced hands, aortohepatic conduits can be used safely for liver transplantation with no negative impact on long-term graft survival, patient survival, hepatic artery complications, or biliary complications. Excellent long-term results can be obtained.
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Affiliation(s)
- Dmitriy Nikitin
- Transplant Services Dallas, Baylor University Medical Center, Dallas, TX, USA
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Kaluzhnaya M, Khmelenina V, Eshinimaev B, Suzina N, Nikitin D, Solonin A, Lin JL, McDonald I, Murrell C, Trotsenko Y. Taxonomic characterization of new alkaliphilic and alkalitolerant methanotrophs from soda lakes of the Southeastern Transbaikal region and description of Methylomicrobium buryatense sp.nov. Syst Appl Microbiol 2001; 24:166-76. [PMID: 11518319 DOI: 10.1078/0723-2020-00028] [Citation(s) in RCA: 114] [Impact Index Per Article: 5.0] [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: 11/18/2022]
Abstract
Five strains of obligate methanotrophic bacteria (4G, 5G, 6G, 7G and 5B) isolated from bottom sediments of Southeastern Transbaikal soda lakes (pH 9.5-10.5) are taxonomically described. These bacteria are aerobic, Gram-negative monotrichous rods having tightly packed cup-shaped structures on the outer cell wall surface (S-layers) and Type I intracytoplasmic membranes. All the isolates possess particulate methane monooxygenase (pMMO) and one strain (5G) also contains soluble methane monooxygenase (sMMO). They assimilate methane and methanol via the ribulose monophosphate pathway (RuMP). The isolates are alkalitolerant or facultatively alkaliphilic, able to grow at pH 10.5-11.0 and optimally at pH 8.5-9.5. These organisms are obligately dependent on the presence of sodium ions in the growth medium and tolerate up to 0.9-1.4 M NaCl or 1 M NaHCO3. Although being mesophilic, all the isolates are resistant to heating (80 degrees C, 20 min), freezing and drying. Their cellular fatty acids profiles primarily consist of C(16:1). The major phospholipids are phosphatidylethanolamine and phosphatidylglycerol. The main quinone is Q-8. The DNA G+C content ranges from 49.2-51.5 mol %. Comparative 16S rDNA sequencing showed that the newly isolated methanotrophs are related to membres of the Methylomicrobium genus. However, they differ from the known members of this genus by DNA-DNA relatedness. Based on pheno- and genotypic characteristics, we propose a new species of the genus Methylomicrobium Methylomicrobium buryatense sp. nov.
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Affiliation(s)
- M Kaluzhnaya
- G.K.Skryabin Institute of Biochemistry and Physiology of Microorganisms RAS, Pushchino, Moscow, Russia
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Pikuta E, Lysenko A, Chuvilskaya N, Mendrock U, Hippe H, Suzina N, Nikitin D, Osipov G, Laurinavichius K. Anoxybacillus pushchinensis gen. nov., sp. nov., a novel anaerobic, alkaliphilic, moderately thermophilic bacterium from manure, and description of Anoxybacillus flavitherms comb. nov. Int J Syst Evol Microbiol 2000; 50 Pt 6:2109-2117. [PMID: 11155986 DOI: 10.1099/00207713-50-6-2109] [Citation(s) in RCA: 161] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
A new strictly anaerobic, alkaliphilic, moderately thermophilic, fermentative, spore-forming bacterium, strain K1T, was isolated from manure samples (pH 6-8). Cells were Gram-positive, straight, non-motile rods that grew at temperatures of 37-66 degrees C (optimum at 62 degrees C) and in a pH range of 8.0-10.5 (optimum at 9.5-9.7). The bacterium fermented D-glucose, sucrose, D-fructose, D-trehalose and starch as carbon and energy sources. It required vitamins and its growth is stimulated by yeast extract. The major metabolic products were H2 and acetate. Cells were catalase-negative and could reduce nitrate to nitrite. The G+C content of the DNA was 42.2 mol%. Based on the phenotypic properties and 16S rDNA sequencing and DNA-DNA hybridization data, strain K1T (= DSM 12423T = ATCC 700785T = VKM B-2193T) was assigned to the new genus Anoxybacillus gen. nov., as a representative of a new species, Anoxybacillus pushchinensis sp. nov. 'Bacillus flavothermus' strain d.y., which was found to be closely related to strain K1T, is described as Anoxybacillus flavithermus comb. nov. (type strain = d.y.T = DSM 2641T).
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Torubarova N, Polyakova O, Kochel I, Dubrovina I, Nikitin D. 34 Atypical variants of MDS in children. Leuk Res 1997. [DOI: 10.1016/s0145-2126(97)81245-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Nikitin D, Petrova E, Klubovskaya N, Ivanovskaya M, Adametskaya N, Boichenko E, Melnikova T, Zharinova T. Efficacy of different approaches for the treatment of myelodysplastic syndrome (MDS) in children. Eur J Cancer 1993. [DOI: 10.1016/0959-8049(93)91748-a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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