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Craig T, Zuraw B, Lumry W, Bernstein J, Cicardi M, Anderson J, Jacobs J, Riedl M, Manning M, Banerji A. OR031 Preventive effect of subcutaneous C1 inhibitor in patients with very frequent attacks of hereditary angioedema. Ann Allergy Asthma Immunol 2017. [DOI: 10.1016/j.anai.2017.08.037] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Anderson J, Krishnarajah G, Craig T, Lumry W, Supina D, Feuersenger H, Pragst I, Machnig T, Bernstein J. P156 Use of rescue medication in hereditary angioedema attacks and its relation to attack severity. Ann Allergy Asthma Immunol 2017. [DOI: 10.1016/j.anai.2017.08.143] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Bernstein J, Ford L, Jayawardena S, Maroni J, Rowe P, Amin N, Pirozzi G, Graham N, Teper A. P204 Dupilumab reduces exacerbations and improves lung function in uncontrolled persistent asthma patients across baseline exacerbations. Ann Allergy Asthma Immunol 2017. [DOI: 10.1016/j.anai.2017.08.242] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Bernstein J, Fridman M, Li H, Craig T, Manning M, Supina D, Feuersenger H, Machnig T, Krishnarajah G. P160 Indirect comparison of placebo-controlled trials of C1-inhibitor replacement therapy for prevention of hereditary angioedema attacks. Ann Allergy Asthma Immunol 2017. [DOI: 10.1016/j.anai.2017.08.147] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Banerji A, Riedl M, Bernstein J, Cicardi M, Longhurst H, Zuraw B, Maurer M. OR034 Lanadelumab for prevention of attacks in hereditary angioedema: results from the phase 3 HELP study. Ann Allergy Asthma Immunol 2017. [DOI: 10.1016/j.anai.2017.08.040] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Murray J, Aboul-Enein BH, Bernstein J, Kruk J. Selected weight management interventions for military populations in the United States: a narrative report. Nutr Health 2017; 23:67-74. [PMID: 28429642 DOI: 10.1177/0260106017704797] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Overweight and obesity continues to be a significant public health burden in the US and particularly among military personnel. Although the US Department of Defense mandates standardized physical activity requirements for military members, incidence and prevalence of overweight and obesity among military personnel continue to increase. Each military department controls their own interventional strategies for physical fitness and weight control. However, unique challenges such as geographic transients, lack of central standardization and empirical efficacy data across military departments, and chronic stress associated with military service adversely affect program outcomes. This brief narrative report explores overweight and obesity interventions among military populations from 2006 to 2016 and includes programmatic reviews of eight overweight and obesity interventions: The Prevention of Obesity in Military Community; Health Eating, Activity, and Lifestyle Training Headquarters (H.E.A.L.T.H); ArmyMOVE!; L.I.F.E.; Look AHEAD; Nutrition-focused Wellness Coaching; Go for Green; and LE3AN. A majority of these interventions did not report significant weight loss 6 months post intervention, and did not mention a theoretical foundation within the interventions. Further research to examine the importance of theory-based programming is warranted to improve process and outcome objectives.
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Aboul-Enein BH, Bernstein J, Kruk J. Professional nutrition journals from Arabic-speaking countries: A regional status. NUTR BULL 2017. [DOI: 10.1111/nbu.12266] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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Aboul-Enein BH, Bernstein J, Neary AC. Dietary transition and obesity in selected Arabicspeaking countries: a review of the current evidence. EASTERN MEDITERRANEAN HEALTH JOURNAL 2017; 22:763-770. [PMID: 28134430 DOI: 10.26719/2016.22.10.763] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/07/2015] [Accepted: 08/03/2016] [Indexed: 11/09/2022]
Abstract
Escalating obesity rates have become a significant public health problem in the Middle East and North Africa (MENA) region and have been associated with shifts towards a westernized diet. This integrative review aimed to examine the current dietary trends and transitions and their association with obesity in Arabic-speaking countries of the MENA region. Relevant databases were searched for studies in MENA countries between 1998 and 2014 that investigated obesity trends and changes in dietary patterns at the regional level in all age groups. A total of 39 articles fulfilled the inclusion criteria. All the articles noted that obesity was increasingly prevalent and that there was a significant dietary shift away from traditional dietary patterns; 51% reported a shift towards a westernized diet and half found that the western diet was correlated with increased obesity. Culturally relevant dietary health education and health promotion strategies are warranted to address both the dietary shifts towards the westernized diet and the increasing obesity.
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Bernstein J. Ein Versuch zur Theorie der Tropfelektrode. Z PHYS CHEM 2017. [DOI: 10.1515/zpch-1901-3815] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Dao A, Bernstein J. P016 A near fatal case of cephalosporin allergy. Ann Allergy Asthma Immunol 2016. [DOI: 10.1016/j.anai.2016.09.024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Beck E, Dahl R, Szefler SJ, Bernstein J, Vandewalker M, Engel M, Moroni-Zentgraf P, Unseld A, Hamelmann E. Safety and tolerability of once-daily tiotropium Respimat® add-on to at least inhaled corticosteroid maintenance therapy in adolescent patients with moderate or severe symptomatic asthma. Pneumologie 2016. [DOI: 10.1055/s-0036-1572092] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Bernstein J, Landau A, Zemel E, Kolodney E. Tin-carbon clusters and the onset of microscopic level immiscibility: Experimental and computational study. J Chem Phys 2015; 143:114307. [PMID: 26395705 DOI: 10.1063/1.4930193] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
We report the experimental observation and computational analysis of the binary tin-carbon gas phase species. These novel ionic compounds are generated by impact of C60(-) anions on a clean tin target at some kiloelectronvolts kinetic energies. Positive Sn(m)C(n)(+) (m = 1-12, 1 ≤ n ≤ 8) ions were detected mass spectrometrically following ejection from the surface. Impact induced shattering of the C60(-) ion followed by sub-surface penetration of the resulting atomic carbon flux forces efficient mixing between target and projectile atoms even though the two elements (Sn/C) are completely immiscible in the bulk. This approach of C60(-) ion beam induced synthesis can be considered as an effective way for producing novel metal-carbon species of the so-called non-carbide forming elements, thus exploring the possible onset of molecular level miscibility in these systems. Sn2C2(+) was found to be the most abundant carbide cluster ion. Its instantaneous formation kinetics and its measured kinetic energy distribution while exiting the surface demonstrate a single impact formation/emission event (on the sub-ps time scale). Optimal geometries were calculated for both neutral and positively charged species using Born-Oppenheimer molecular dynamics for identifying global minima, followed by density functional theory (DFT) structure optimization and energy calculations at the coupled cluster singles, doubles and perturbative triples [CCSD(T)] level. The calculated structures reflect two distinct binding tendencies. The carbon rich species exhibit polyynic/cummulenic nature (tin end capped carbon chains) while the more stoichiometrically balanced species have larger contributions of metal-metal bonding, sometimes resulting in distinct tin and carbon moieties attached to each other (segregated structures). The Sn2C(n) (n = 3-8) and Sn2C(n)(+) (n = 2-8) are polyynic/cummulenic while all neutral Sn(m)C(n) structures (m = 3-4) could be described as small tin clusters (dimer, trimer, and tetramer, correspondingly) attached to a nearly linear carbon chain. For example, the 1:1 (Sn:C) Sn3C3 and Sn4C4 clusters are composed of all-tin triangle and rhombus, correspondingly, with a short carbon chain (C3, C4) attached on top. The cationic Sn3C(n)(+) (n = 1-5) and Sn4C(n)(+) (n = 1-4) species exhibit various intermediate geometries. Structure calculations at the CCSD(T) level are essential since the segregation effect is not as easily evident based on the most stable structures calculated by DFT alone. Dependences of bond energies (per atom) reflect the evolution of the segregation effect. The mass spectral abundances could be reasonably rationalized in terms of calculated stabilities of the cluster ions with respect to various dissociation channels.
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Aboul-Enein BH, Bernstein J. Feasibility of Internet-based Post-secondary Nutrition Education: Incorporating Features of the Mediterranean Diet. Health Promot Perspect 2015; 5:92-7. [PMID: 26290824 DOI: 10.15171/hpp.2015.011] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2015] [Accepted: 04/13/2015] [Indexed: 11/09/2022] Open
Abstract
BACKGROUND The Internet continues to serve as an ideal venue for health education interventions promoting behavior change. Due to the progressive expansion in online education programs, new methodologies that contribute across health education and program planning continuums are needed. METHODS This ecologic study investigated the change in student dietary behav-ior and food choices following an original online education intervention that introduced the Mediterranean diet (MD) in a community college in Houston, Texas. A non-probability convenience sample (n=65) provided pretest-posttest data measuring knowledge of and attitudes toward the MD. The intervention was incorporated into an undergraduate nutrition course, delivered entirely online and evaluated using the Mediterranean Diet Quality Index (KIDMED) survey. RESULTS The intervention improved total participant population from a mean KIDMED score of poor (4.12) to a mean score of high (8.45) indicating an increase in knowledge of MD dietary guidelines and a positive shift in favorable attitude, particularly among men. CONCLUSION This study provides a unique pedagogical illustration of online learn-ing that introduce a specific evidence-based dietary guideline to a college student population. A detailed discussion of findings and lessons learned is provided.
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Shikano S, Bernstein J, Okamoto Y. An Yeast‐Based Screening for Signal Motifs That Regulate Membrane Protein Trafficking. FASEB J 2015. [DOI: 10.1096/fasebj.29.1_supplement.565.8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Aboul-Enein BH, Bernstein J. Promoting Dietary Behavior Using the Mediterranean Diet in an Online College Environment. CALIFORNIAN JOURNAL OF HEALTH PROMOTION 2014. [DOI: 10.32398/cjhp.v12i2.2155] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Background and Purpose: The prevalence of obesity has prompted calls for broad public health education solutions to reduce, if not reverse, overweight and obesity among college students in the United States. This study investigated change in student dietary behavior and food choices following an education intervention that introduced the Mediterranean diet (MD) as a weight management tool in a Houston, Texas community college. Methods: Online survey data were collected at pre-test and post-test assessments from a convenience sample of 65 college students enrolled in an online undergraduate nutrition course during the summer of 2013. The Mediterranean Diet Quality Index (KIDMED) survey evaluated dietary behavior change based on the MD Principals. Results: The intervention improved total participant population from a mean KIDMED score of poor (4.12) to a mean score of high (8.45), indicating improved dietary behavior change, particularly among men. Significant differences in KIDMED change scores by ethnicity and heart disease (HD) history were also observed. Conclusion: This study provides a unique pedagogical illustration of e-learning to promote MD patterns among college student populations.
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Armon E, Bekkerman A, Cohen Y, Bernstein J, Tsipinyuk B, Kolodney E. Direct experimental observation of a new mechanism for sputtering of solids by a large polyatomic projectile: velocity-correlated cluster emission. PHYSICAL REVIEW LETTERS 2014; 113:027604. [PMID: 25062236 DOI: 10.1103/physrevlett.113.027604] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/21/2013] [Indexed: 06/03/2023]
Abstract
We have measured kinetic energy distributions of Ta(n)C(n)(+) (n=1-10) and Ag(n)(+) (n=1-9) cluster ions sputtered off Ta and Ag targets, following impact of C(60)(-) at 14 keV kinetic energy. A gradual increase of the most probable kinetic energies with increased size of the emitted cluster was observed (nearly the same velocity for all n values). This behavior is in sharp contrast to that reported for cluster emission induced by the impact of a monoatomic projectile. Our observation is in good agreement with a mechanism based on the new concept of a superhot moving precursor as the source of the emitted clusters.
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Aharon-Shalom E, Becker JY, Bernstein J, Bittner S, Shaik SS. The 1:1 Mixed Stack Complex of Tetrathiafulvalene and 2,5-Dibenzyltetracyanoquinodimethane (TTF:DBTCNQ) at 115 K. Isr J Chem 2013. [DOI: 10.1002/ijch.198600056] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Bernstein J, Leiserowitz L. Molecular Packing Modes. Part X. The Crystal and Molecular Structures ofTrans, Trans-Muconic Acid. Isr J Chem 2013. [DOI: 10.1002/ijch.197200058] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Bie L, Li Y, Yuan H, Bondy M, Bainbridge M, Jhangiani S, Jalali A, Plon SE, Armstrong G, Bernstein J, Claus E, Davis F, Houlston R, Il'yasova D, Jenkins R, Johansen C, Lachance D, Lai R, Lau C, Merrell R, Olson S, Sadetzki S, Schildkraut J, Shete S, Barnholtz-Sloan J, Wrensch M, Consortium TG, Melin B, Gibbs RA, Haberler C, Czech T, Chocholous M, Dorfer C, Slavc I, Hayashi S, Sasaki H, Kimura T, Nakamura T, Miwa T, Hirose Y, Yoshida K, Jalali A, Bainbridge M, Jhangiani S, Plon SE, Armstrong G, Bernstein J, Claus E, Davis F, Houlston R, Il'yasova D, Jenkins R, Johansen C, Lachance D, Lai R, Lau C, Merrell R, Olson SH, Sadetzki S, Schildkraut J, Shete S, Barnholtz-Sloan J, Wrensch M, Melin B, Gibbs RA, Bondy M, Jenkins R, Wrensch M, Kollmeyer T, Armstrong G, Olson S, Lai R, Lachance D, Lau C, Claus E, Barnholtz-Sloan J, Il'yasova D, Schildkraut J, Houlston R, Shete S, Bernstein J, Davis F, Merrell R, Johansen C, Sadetzki S, Consortium TG, Melin B, Bondy M, Palmer J, Li J, Kenyon L, Andrews D, Kim L, Glass J, Werner-Wasik M, Shi W, Takayanagi S, Mukasa A, Aihara K, Saito K, Otani R, Tanaka S, Nakatomi H, Aburatani H, Ichimura K, Ueki K, Saito N, Walsh KM, Decker PA, Eckel-Passow JE, Molinaro AM, Hansen HM, Rice T, Zheng S, Kollmeyer T, Berger MS, Chang SM, Prados MD, Rynearson A, Caron A, Kosel ML, Lachance DH, O'Neill BP, Giannini C, Wiencke JK, Jenkins RB, Wrensch MR, Wang Z, Bao Z, Jiang T, Wang Z, Bao Z, Jiang T. MOLECULAR EPIDEMIOLGOY. Neuro Oncol 2013. [DOI: 10.1093/neuonc/not180] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Amirian ES, Scheurer ME, Wrensch M, Olson SH, Lai R, Lachance D, Armstrong G, Zhou R, Wiemels J, Lau C, Claus E, Barnholtz-Sloan J, Il'yasova D, Schildkraut J, Houlston R, Shete S, Bernstein J, Jenkins R, Davis F, Merrell R, Johansen C, Sadetzki S, Melin B, Bondy M, Dardis C, Dembowska-Baginska B, Swieszkowska E, Drogosiewicz M, Polnik MP, Filipek I, Grudzinska M, Grajkowska W, Perek D, Flores K, Crawford J, Piccioni D, Lemus H, Lindsay S, Kesari S, Bricker P, Fonkem E, Ebue E, Song J, Harris F, Thawani N, DiPatre PL, Newell-Rogers MK, Fonkem E, Gittleman H, Kruchko C, Ostrom Q, Chen Y, Farah P, Ondracek A, Wolinsky Y, Barnholtz-Sloan J, Griffin J, Tobin R, Newell-Rogers MK, Ebwe E, Fonkem E, Johnson D, Leeper H, Uhm J, Lee A, Back M, Gzell C, Kastelan M, Wheeler H, Ostrom Q, Kruchko C, Gittleman H, Chen Y, Ondracek A, Farah P, Wolinsky Y, Barnholtz-Sloan J, Lopez E, Sepulveda C, Diego-Perez J, Betanzos Y, de Leon AP, Prabhu V, Perry E, Melian E, Barton K, Lee J, Anderson D, Urgoiti GR, Singh A, Tsang RY, Nordal R, Lim G, Chan J, Starreveld Y, de Robles P, Biagioni B, Hamilton M, Easaw J, Senerchia A, Eleuterio S, Souza E, Cappellano A, Seixas T, Cavalheiro S, Saba N, Torres-Carranza A, Canales-Martinez LC, Perez-Cardenas S, Miranda-Maldonado I, Barbosa-Quintana O, de Leon AMP, Umemura Y, Ronan L, van Zanten SV, Jansen M, van Vuurden D, Vandertop P, Kaspers GJ, Wallach J, LaSala P, Kalnicki S, Garg M, Wong TT, Ho DM, Chang KP, Yen SH, Guo WY, Chang FC, Liang ML, Chen HHS, Chen YW, Pan DHC, Chung WY, Yoo H, Jung KW, Lee SH, Shin SH, Ha J, Won YJ, Yoon H, Offor O, Helenowski I, Bhandari R, Raparia K, Marymont M, DeCamp M, de Hoyos A, Chandler J, Bendok B, Chmura S, Mehta M. EPIDEMIOLOLGY. Neuro Oncol 2013; 15:iii32-iii36. [PMCID: PMC3823890 DOI: 10.1093/neuonc/not175] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2023] Open
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Holzinger D, Lohse P, Faßl S, Austermann J, Vogl T, de Jager W, Holland S, Gattorno M, Rodriguez-Gallego C, Arostegui J, Fessatou S, Isidor B, Ito K, Epple HJ, Bernstein J, Jeng M, Lionetti G, Ong P, Hinze C, Sampson B, Sunderkoetter C, Foell D, Chae J, Ombrello A, Brady J, Aksentijevich I, Roth J. PW02-018 - Impact of PSTPIP1 mutaions on clinical phenotype. Pediatr Rheumatol Online J 2013. [PMCID: PMC3953041 DOI: 10.1186/1546-0096-11-s1-a158] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/04/2022] Open
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Wood A, Schauben J, Thundiyil J, Kunisaki T, Sollee D, Lewis-Younger C, Bernstein J, Weisman R. Review of Eastern coral snake (Micrurus fulvius fulvius) exposures managed by the Florida Poison Information Center Network: 1998-2010. Clin Toxicol (Phila) 2013; 51:783-8. [PMID: 23962099 DOI: 10.3109/15563650.2013.828841] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
CONTEXT Envenomation by the Eastern coral snake is rare but may be associated with significant morbidity. While effective, acquisition of North American Coral Snake Antivenin (NACSAV) is difficult because production was discontinued for many years. OBJECTIVE The purpose of this study is to characterize coral snake exposures in Florida and determine the effects of varying treatment paradigms on patient outcomes. METHODS This study is an observational case series of cases received at Florida poison centers. Included cases were Eastern coral snake exposures occurring between January 1, 1998 and October 31, 2010. Excluded cases included those found to be unrelated or those not followed for at least 24 h post envenomation. Case comments were reviewed to obtain data. Comparisons were made between asymptomatic patients receiving empiric antivenom therapy (empiric group) and those asymptomatic patients who received antivenom upon developing signs of systemic envenomation (withhold group). RESULTS Of the 553 cases identified, 387 were included in the final analysis. According to case comments, 56.3% of patients had no reported systemic symptoms. Most commonly, patients were reported to have pain (40.6%), paresthesias (28.4%), nausea (12.7%), and emesis (11.4%). NACSAV was administered to 252 patients (65%). Of those patients receiving NACSAV, 18.25% were reported to have had an adverse reaction. Patients in the withhold group (n = 106) had significantly fewer minor, moderate, and major outcomes than patients in the empiric group (n = 134, p < 0.01). DISCUSSION While patients in the withhold group had favorable outcomes compared with those in the empiric group, this strategy cannot be applied to all patients presenting asymptomatic to healthcare facilities due to study limitations. CONCLUSION Further studies are needed to determine what treatment strategy is most appropriate for asymptomatic patients presenting to healthcare facilities.
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Yoo N, Bernstein J, Caldwell C, Dong C, Drobeniuc J, Kamili S, Landry M. Hepatitis E virus infection in a liver transplant recipient: delayed diagnosis due to variable performance of serologic assays. Transpl Infect Dis 2013; 15:E166-8. [DOI: 10.1111/tid.12096] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2012] [Revised: 01/17/2013] [Accepted: 02/03/2013] [Indexed: 12/25/2022]
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Shikano S, Bernstein J, Okamoto Y. Role of membrane‐proximal basic residues in cell surface trafficking of GPR15. FASEB J 2013. [DOI: 10.1096/fasebj.27.1_supplement.553.22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Kahn I, Knoblich U, Desai M, Bernstein J, Graybiel AM, Boyden ES, Buckner RL, Moore CI. Optogenetic drive of neocortical pyramidal neurons generates fMRI signals that are correlated with spiking activity. Brain Res 2013; 1511:33-45. [PMID: 23523914 DOI: 10.1016/j.brainres.2013.03.011] [Citation(s) in RCA: 57] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2012] [Revised: 02/18/2013] [Accepted: 03/06/2013] [Indexed: 10/27/2022]
Abstract
Local fluctuations in the blood oxygenation level-dependent (BOLD) signal serve as the basis of functional magnetic resonance imaging (fMRI). Understanding the correlation between distinct aspects of neural activity and the BOLD response is fundamental to the interpretation of this widely used mapping signal. Analysis of this question requires the ability to precisely manipulate the activity of defined neurons. To achieve such control, we combined optogenetic drive of neocortical neurons with high-resolution (9.4 T) rodent fMRI and detailed analysis of neurophysiological data. Light-driven activation of pyramidal neurons resulted in a positive BOLD response at the stimulated site. To help differentiate the neurophysiological correlate(s) of the BOLD response, we employed light trains of the same average frequency, but with periodic and Poisson distributed pulse times. These different types of pulse trains generated dissociable patterns of single-unit, multi-unit and local field potential (LFP) activity, and of BOLD signals. The BOLD activity exhibited the strongest correlation to spiking activity with increasing rates of stimulation, and, to a first approximation, was linear with pulse delivery rate, while LFP activity showed a weaker correlation. These data provide an example of a strong correlation between spike rate and the BOLD response. This article is part of a Special Issue entitled Optogenetics (7th BRES).
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