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Firth A, Sütterlin S, Lugo R. The Role of Trait and State Mindfulness in Cognitive Performance of Male Adolescents. Psychol Res Behav Manag 2023; 16:3939-3948. [PMID: 37771396 PMCID: PMC10522453 DOI: 10.2147/prbm.s409737] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2023] [Accepted: 08/17/2023] [Indexed: 09/30/2023] Open
Abstract
Purpose The number of mindfulness intervention projects is continually increasing. Within the educational environment, mindfulness has purported links to well-being, positive behaviour, educational and cognitive performance. Trait mindfulness is related to rational thinking and better performance in cognitive tests, suggesting that innate mindfulness ability contributes to self-regulation ability and thus the efficacy of mindfulness interventions. The current study investigates whether mindfulness is a moderating factor. It examines correlations between cognitive performance and trait mindfulness. The study investigates the influence of trait mindfulness on the ability of students to enter state mindfulness in an attempt to understand the role both types of mindfulness may have on cognitive performance. Participants and Method Two-hundred and five male students aged fifteen and sixteen completed the adolescent version of the Mindfulness Awareness Scale, the Cognitive Reflection Test, and the Toronto Mindfulness Scale. Results Hierarchical regression analysis found that state mindfulness was a predictor of cognitive reflection ability. ANOVA also found that having either trait or state mindfulness predicted higher cognitive reflection scores, but only state mindfulness had a significant effect on cognitive reflection. Trait mindfulness was not a moderating factor. Conclusion Both state and trait aspects of mindfulness ability influence cognitive performance. Those with higher trait mindfulness ability are better able to enter state mindfulness and thus had better cognitive reflection scores. However, where it is possible to induce state mindfulness into those with low trait mindfulness, CRT scores were also higher although not significantly so.
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Affiliation(s)
- Andrea Firth
- University Campus Football Business, London, UK
- Headgame Performance Psychology, London, UK
| | - Stefan Sütterlin
- Faculty of Computer Science, Albstadt-Sigmaringen University, Albstadt, Germany
- Faculty of Health, Welfare and Organisation, Østfold University College, Halden, Norway
| | - Ricardo Lugo
- Faculty of Health, Welfare and Organisation, Østfold University College, Halden, Norway
- Estonian Maritime Academy, Tallinn University of Technology, Tallinn, Estonia
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Schelhorn I, Schlüter S, Paintner K, Shiban Y, Lugo R, Meyer M, Sütterlin S. Emotions and emotion up-regulation during the COVID-19 pandemic in Germany. PLoS One 2022; 17:e0262283. [PMID: 34995338 PMCID: PMC8741032 DOI: 10.1371/journal.pone.0262283] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2021] [Accepted: 12/21/2021] [Indexed: 12/12/2022] Open
Abstract
In stressful situations such as the COVID-19-pandemic, unpleasant emotions are expected to increase while pleasant emotions will likely decrease. Little is known about the role cognitive appraisals, information management, and upregulating pleasant emotions can play to support emotion regulation in a pandemic. In an online survey (N = 1682), we investigated predictors of changes in pleasant and unpleasant emotions in a German sample (aged 18–88 years) shortly after the first restrictions were imposed. Crisis self-efficacy and felt restriction were predictors of changes in unpleasant emotions and joy alike. The application of emotion up-regulation strategies was weakly associated with changes in joy. Among the different upregulation strategies, only “savouring the moment” predicted changes in joy. Our study informs future research perspectives assessing the role of upregulating pleasant emotions under challenging circumstances.
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Affiliation(s)
- Iris Schelhorn
- Department of Experimental Psychology, University of Regensburg, Regensburg, Germany
| | - Swantje Schlüter
- Department of Experimental Psychology, University of Regensburg, Regensburg, Germany
| | - Kerstin Paintner
- Department of Experimental Psychology, University of Regensburg, Regensburg, Germany
| | - Youssef Shiban
- Department of Clinical Psychology; PFH–Private University of Applied Sciences, Göttingen, Germany
| | - Ricardo Lugo
- Faculty of Health and Welfare Sciences, Østfold University College, Halden, Norway
- * E-mail:
| | - Marie Meyer
- Department of Clinical Psychology; PFH–Private University of Applied Sciences, Göttingen, Germany
| | - Stefan Sütterlin
- Faculty of Health and Welfare Sciences, Østfold University College, Halden, Norway
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Kim EJ, Holmes BB, Huang S, Lugo R, Al Aboud A, Goodman S, Hung RR, Slosky D, Stevenson WG, Michaud GF, John RM. Outcomes in patients with cardiac amyloidosis and implantable cardioverter-defibrillator. Europace 2021; 22:1216-1223. [PMID: 32514579 DOI: 10.1093/europace/euaa094] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [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: 09/23/2019] [Revised: 11/26/2019] [Accepted: 04/03/2020] [Indexed: 12/21/2022] Open
Abstract
AIMS Cardiac amyloidosis (CA) is associated with increased mortality due to arrhythmias, heart failure, and electromechanical dissociation. However, the role of an implantable cardioverter-defibrillator (ICD) remains unclear. We conducted case-control study to assess survival in CA patients with and without a primary prevention ICD and compared outcomes to an age, sex, and device implant year-matched non-CA group with primary prevention ICD. METHODS AND RESULTS There were 91 subjects with CA [mean age= 71.2 ± 10.2, female 22.0%, 49 AL with Mayo Stage 2.9 ± 1.0, 41 transthyretin amyloidosis (ATTR), 1 other] followed by Vanderbilt Amyloidosis centre. Patients with ICD (n = 23) were compared with those without (n = 68) and a non-amyloid group with ICD (n = 46). All subjects with ICD had implantation for primary prevention. Mean left ventricular ejection fraction was 36.2% ± 14.4% in CA with ICD, 41.0% ± 10.6% in CA without ICD, and 33.5% ± 14.4% in non-CA patients. Over 3.5 ± 3.1 years, 6 (26.1%) CA, and 12 (26.1%) non-CA subjects received ICD therapies (P = 0.71). Patients with CA had a significantly higher mortality (43.9% vs. 17.4%, P = 0.002) compared with the non-CA group. Mean time from device implantation to death was 21.8 months in AL and 22.8 months in ATTR patients. There was no significant difference in mortality between CA patients who did and did not receive an ICD (39.0% vs. 46.0%, P = 0.59). CONCLUSIONS Despite comparable event rates patients with CA had a significantly higher mortality and ICDs were not associated with longer survival. With the emergence of effective therapy for AL amyloidosis, further study of ICD is needed in this group.
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Affiliation(s)
- Eun-Jeong Kim
- Division of Cardiovascular Medicine, Department of Medicine, University of California San Francisco Medical Center, San Francisco, CA 94143, USA
| | - Benjamin B Holmes
- Division of Cardiovascular Medicine, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN 37232, USA
| | - Shi Huang
- Department of Biostatistics, Vanderbilt University Medical Center, Nashville, TN 37232, USA
| | - Ricardo Lugo
- Division of Cardiovascular Medicine, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN 37232, USA
| | - Asad Al Aboud
- Division of Cardiovascular Medicine, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN 37232, USA
| | - Stacey Goodman
- Division of Hematology and Oncology, Department of MedicineVanderbilt University Medical Center, Nashville, TN 37232, USA
| | - Rebecca R Hung
- Division of Cardiovascular Medicine, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN 37232, USA
| | - David Slosky
- Division of Cardiovascular Medicine, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN 37232, USA
| | - William G Stevenson
- Division of Cardiovascular Medicine, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN 37232, USA
| | - Gregory F Michaud
- Division of Cardiovascular Medicine, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN 37232, USA
| | - Roy M John
- Cardiac Arrhythmia Service, Northshore University Medical Center, Cohen 1, 300 Community Drive, Manhasset, NY 11030, USA
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Nakajima I, Narui R, Aboud AA, Adeola O, McHugh J, Holmes B, Lugo R, Richardson TD, Montgomery J, Shen S, Kanagasundram A, Michaud GF, Stevenson WG. Periaortic Ventricular Tachycardias in Nonischemic Cardiomyopathy: Substrate and Electrocardiographic Correlations. Circ Arrhythm Electrophysiol 2021; 14:e008887. [PMID: 33417473 DOI: 10.1161/circep.120.008887] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
BACKGROUND Periaortic fibrotic ventricular tachycardia (VT) substrate is common in nonischemic cardiomyopathy (NICM), often intramural, and difficult to ablate. We sought to better characterize normal and abnormal periaortic voltage map parameters and NICM periaortic VTs. METHODS In 15 patients without heart disease, the 5th percentile of endocardial voltage for increasing distance from the aortic valve ring was determined. In 53 consecutive patients with NICM (64±11 years; left ventricular ejection fraction 31±10%) undergoing ablation of recurrent VT, periaortic electrogram voltage and VT characteristics were analyzed. RESULTS In healthy patients, the fifth percentile of the bipolar voltage increased proportional to the distance from the aortic valve ring, from 1.0 mV at 1 cm to 1.5 mV at 1.5 cm; the corresponding unipolar voltage cutoffs were 5.0 and 7.5 mV. A total of 160 VTs were induced in 53 patients with NICM, of which 28 VTs in 20 patients had periaortic origins. Periaortic VTs were associated with similar periaortic bipolar voltage, but lower UVs consistent with intramural fibrosis as an important substrate. Periaortic VTs could be divided into left and right bundle branch block forms with mapping showing right septal and lateral exits. Left bundle branch block VTs were more often acutely abolished with ablation (100% versus 69%; P=0.034), but with a 23% incidence of heart block. Greater extent of low voltage was associated with more induced VTs and worse acute outcome. CONCLUSIONS Adjusting voltage parameters based on distance from the aortic valve may improve definition of left ventricular outflow tract arrhythmia substrate. Periaortic VTs are common in NICM, often associated with intramural substrate and can be divided into left bundle branch block and right bundle branch block types associated with different ablation outcomes and risks.
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Affiliation(s)
- Ikutaro Nakajima
- Cardiovascular Division, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN
| | - Ryohsuke Narui
- Cardiovascular Division, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN
| | - Asad A Aboud
- Cardiovascular Division, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN
| | - Oluwaseun Adeola
- Cardiovascular Division, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN
| | - Julia McHugh
- Cardiovascular Division, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN
| | - Benjamin Holmes
- Cardiovascular Division, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN
| | - Ricardo Lugo
- Cardiovascular Division, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN
| | - Travis D Richardson
- Cardiovascular Division, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN
| | - Jay Montgomery
- Cardiovascular Division, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN
| | - Sharon Shen
- Cardiovascular Division, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN
| | - Arvindh Kanagasundram
- Cardiovascular Division, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN
| | - Gregory F Michaud
- Cardiovascular Division, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN
| | - William G Stevenson
- Cardiovascular Division, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN
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Alotaibi FH, Lugo R, Patel SY, Abdulsattar J, Ghali G. Primary Merkel Cell Carcinoma of the parotid gland; unusual location and clinical presentation. Oral and Maxillofacial Surgery Cases 2020. [DOI: 10.1016/j.omsc.2020.100197] [Citation(s) in RCA: 1] [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: 10/23/2022] Open
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Yoneda ZT, Shoemaker MB, Richardson T, Crawford D, Kanagasundram A, Shen S, Estrada JC, Holmes B, Lugo R, McHugh J, Saavedra P, Crossley G, Ellis CR, Montgomery JA, Michaud GF. Conduction Recovery After Cavotricuspid Isthmus Ablation When Performed With or Without Concomitant Atrial Fibrillation Ablation. JACC Clin Electrophysiol 2020; 6:989-996. [PMID: 32819535 DOI: 10.1016/j.jacep.2020.04.031] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [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: 11/05/2019] [Revised: 03/24/2020] [Accepted: 04/22/2020] [Indexed: 11/16/2022]
Abstract
OBJECTIVES This study sought to define the association between conduction recovery across the cavotricuspid isthmus (CTI) and typical atrial flutter (AFL) recurrence when CTI ablation is performed with pulmonary vein isolation (PVI) compared with a stand-alone procedure. BACKGROUND CTI ablation is commonly performed at the same time as PVI to treat AFL or as an empiric therapy. Conduction recovery is a recognized problem after linear ablation in the left atrium (e.g., mitral isthmus ablation) and is proarrhythmic. Less is known about conduction recovery after CTI ablation and possible differences in outcomes when performed at the time of PVI compared with at the time of a stand-alone procedure. METHODS Eligible participants who underwent stand-alone CTI ablation were compared with those who underwent a combined (CTI+PVI) procedure. CTI conduction recovery was assessed at the time of a second ablation. Conduction recovery across the CTI (primary outcome) and recurrence of typical AFL (secondary outcome) were studied using multivariable logistic regression. RESULTS Among 295 eligible participants (median age: 64 years [interquartile range: 55 to 69 years]; 33% women), recovery was assessed in 232 and was more common after combined versus stand-alone CTI ablation (52% [72 of 139] vs. 13% [12 of 93]; p < 0.001). In multivariable analysis, CTI ablation performed as a combined procedure increased odds of CTI conduction recovery 7.8-fold (odds ratio: 7.8; 95% confidence interval: 3.3 to 18.3; p < 0.001) and clinical AFL recurrence 4.1-fold (odds ratio: 4.1; 95% confidence interval: 1.0 to 16.9; p = 0.049). CONCLUSIONS CTI ablation performed at the time of atrial fibrillation ablation is associated with higher rates of conduction recovery and typical flutter recurrence.
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Affiliation(s)
- Zachary T Yoneda
- Cardiovascular Division, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - M Benjamin Shoemaker
- Cardiovascular Division, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - Travis Richardson
- Cardiovascular Division, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - Diane Crawford
- Cardiovascular Division, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - Arvindh Kanagasundram
- Cardiovascular Division, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - Sharon Shen
- Cardiovascular Division, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - Juan Carlos Estrada
- Cardiovascular Division, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - Benjamin Holmes
- Cardiovascular Division, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - Ricardo Lugo
- Department of Cardiology, Ascension Saint Thomas West, Nashville, Tennessee, USA
| | - Julia McHugh
- Cardiovascular Division, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - Pablo Saavedra
- Cardiovascular Division, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - George Crossley
- Cardiovascular Division, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - Christopher R Ellis
- Cardiovascular Division, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - Jay A Montgomery
- Cardiovascular Division, Vanderbilt University Medical Center, Nashville, Tennessee, USA
| | - Gregory F Michaud
- Cardiovascular Division, Vanderbilt University Medical Center, Nashville, Tennessee, USA.
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Holmes BB, Patel N, Lugo R, Richardson T, Metawee M, Rinke LL, Meisch C, Shoemaker MB, Ellis CR. Clinical predictors of acute hyponatremia following LARIAT ligation of the left atrial appendage. J Cardiovasc Electrophysiol 2019; 30:2501-2507. [PMID: 31515883 DOI: 10.1111/jce.14177] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/19/2019] [Revised: 05/30/2019] [Accepted: 08/31/2019] [Indexed: 12/20/2022]
Abstract
INTRODUCTION Hyponatremia commonly follows percutaneous exclusion of the left atrial appendage (LAA) with the LARIAT suture delivery device. The aim of this study was to evaluate for clinical predictors hyponatremia following ligation of the appendage with the LARIAT device. METHODS AND RESULTS A retrospective analysis was conducted on 61 consecutive patients (average age 69.7 ± 9.8 years, 55.7% male) who underwent successful appendage ligation with the LARIAT device. Acute hyponatremia (AH) was defined as a drop in serum sodium (Na) by greater than or equal to 4 mmol/L within 48 hours of ligation while exaggerated acute hyponatremia (EAH) was defined as a drop greater than or equal to 10 mmol/L. Among all patients, there was a significant decrease in [Na] at 24 hours (3.26 ± 2.77 mmol/L) and 48 hours (4.98 ± 3.74 mmol/L). Thirty-two patients (52.4%) had AH while six patients (9.8%) experienced EAH. A body mass index (BMI) of less than 28.4 kg/m2 was associated with AH (P = .037) while a BMI < 25 kg/m2 was associated with EAH (P = .021). A linear regression analysis comparing the maximum sodium decrease to the indexed left atrial (LA) diameter found that for every 1 cm/m2 increase in indexed LA diameter, there was a 2.5 mEq/L decrease in serum sodium (P = .04). CONCLUSIONS Hyponatremia frequently occurs following LAA ligation with the LARIAT device. A low BMI < 25 kg/m2 is associated with a drop in serum sodium of greater than 10 mmol/L while increasing indexed LA diameter predicts any AH. AH is also associated with a significantly lower systolic blood pressure 48 to 72 hours post LAA exclusion with the LARIAT device.
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Affiliation(s)
- Benjamin B Holmes
- Division of Cardiovascular Medicine, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Neel Patel
- Section of Cardiovascular Medicine, Wake Forest Baptist Health, Winston Salem, North Carolina
| | - Ricardo Lugo
- Division of Cardiovascular Medicine, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Travis Richardson
- Division of Cardiovascular Medicine, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Mohammed Metawee
- Division of Cardiovascular Medicine, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Lauren Lee Rinke
- Division of Cardiovascular Medicine, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Carol Meisch
- Division of Cardiovascular Medicine, Vanderbilt University Medical Center, Nashville, Tennessee
| | | | - Christopher R Ellis
- Division of Cardiovascular Medicine, Vanderbilt University Medical Center, Nashville, Tennessee
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Abstract
Reliance upon data networks to conduct military operations presents new challenges to the competence profiles of military personnel. Specifically the increased demand for the new category of military cyber personnel is a direct consequence of the utility of the cyber domain in contemporary military operations, both to support leadership processes and as a domain of operations on its own. The conflation of the cyber and physical domains empowers cyber operators to influence events beyond their immediate physical environment. Proper education and training of such personnel requires new insight into the competencies that are beyond cyber specific technical skills, to govern the complexity of operating in a cyber-physical hybrid environment. This pilot research contributes to the debate on military cyber personnel competencies by investigating how cyber defense operator’s level of self-regulation can contribute to their performance in operations. We hypothesize that higher levels of self-regulation predicts higher levels of cognitive agility as measured by cognitive movement in The Hybrid Space conceptual framework. Displays of cognitive agility within The Hybrid Space have previously been linked to performance in defensive cyber operations. A positive association was therefore expected between levels of self-regulation and displays of cognitive agility. N = 23 cyber cadets from the Norwegian Defence Cyber Academy (NDCA) completed self-regulation questionnaires (SRQs) and self-reported their cognitive location in The Hybrid Space during a 4-day cyber defense exercise. Data showed that higher levels of self-regulation were associated with displays of cognitive agility. According to the regression models in use, self-regulation could explain 43.1% of the total cognitive movements in The Hybrid Space. Understanding factors that contribute to cyber operator performance are needed to improve education and training programs for military cyber personnel. Validating self-regulation as a contributing factor to cognitive agility is important as this can be a pathway to empirically underpin individual cyber operator performance.
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Affiliation(s)
- Øyvind Jøsok
- Norwegian Defence Cyber Academy, Lillehammer, Norway.,Faculty of Social and Health Sciences, Inland University of Applied Sciences, Lillehammer, Norway
| | - Ricardo Lugo
- Inland School of Business and Social Sciences, Inland University of Applied Sciences, Lillehammer, Norway
| | - Benjamin James Knox
- Norwegian Defence Cyber Academy, Lillehammer, Norway.,Department of Information Security and Communications Technology, Norwegian University of Science and Technology, Trondheim, Norway
| | - Stefan Sütterlin
- Faculty for Health and Welfare Sciences, Østfold University College, Halden, Norway.,Division of Clinical Neuroscience, Oslo University Hospital, Oslo, Norway
| | - Kirsi Helkala
- Norwegian Defence Cyber Academy, Lillehammer, Norway
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Kim EJ, Holmes B, Huang S, Lugo R, Aboud AA, Richardson T, Goodman S, Hung RR, Slosky D, Stevenson W, Michaud G, John R. DOES AN IMPLANTABLE DEFIBRILLATOR ALTER OUTCOMES IN PATIENTS WITH CARDIAC AMYLOIDOSIS? J Am Coll Cardiol 2019. [DOI: 10.1016/s0735-1097(19)31444-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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10
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Lugo R, Michaud G. Ventricular Tachycardia Ablation With Half-Normal Saline Irrigant: Half Is the New Normal? JACC Clin Electrophysiol 2018; 4:1186-1188. [PMID: 30236392 DOI: 10.1016/j.jacep.2018.07.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2018] [Accepted: 07/30/2018] [Indexed: 11/29/2022]
Affiliation(s)
- Ricardo Lugo
- Cardiovascular Division, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Gregory Michaud
- Cardiovascular Division, Vanderbilt University Medical Center, Nashville, Tennessee.
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11
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Richardson T, Lugo R, Saavedra P, Crossley G, Clair W, Shen S, Estrada JC, Montgomery J, Shoemaker MB, Ellis C, Michaud GF, Lambright E, Kanagasundram AN. Cardiac sympathectomy for the management of ventricular arrhythmias refractory to catheter ablation. Heart Rhythm 2017; 15:56-62. [PMID: 28917558 DOI: 10.1016/j.hrthm.2017.09.006] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [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: 06/07/2017] [Indexed: 02/05/2023]
Abstract
BACKGROUND Catheter ablation is now a mainstay of therapy for ventricular arrhythmias (VAs). However, there are scenarios where either physiological or anatomical factors make ablation less likely to be successful. OBJECTIVE The purpose of this study was to demonstrate that cardiac sympathetic denervation (CSD) may be an alternate therapy for patients with difficult-to-ablate VAs. METHODS We identified all patients referred for CSD at a single center for indications other than long QT syndrome and catecholaminergic polymorphic ventricular tachycardia who had failed catheter ablation. Medical records were reviewed for medical history, procedural details, and follow-up. RESULTS Seven cases of CSD were identified in patients who had failed prior catheter ablation or had disease not amenable to ablation. All patients had VAs refractory to antiarrhythmic drugs, with a median arrhythmia burden of 1 episode of sustained VA per month. There were no acute complications of sympathectomy. One of 7 patients (14%) underwent heart transplant. No patient had sustained VA after sympathectomy at a median follow-up of 7 months. CONCLUSION Because of anatomical and physiological constraints, many VAs remain refractory to catheter ablation and remain a significant challenge for the electrophysiologist. While CSD has been described as a therapy for long QT syndrome and catecholaminergic polymorphic ventricular tachycardia, data regarding its use in other cardiac conditions are sparse. This series illustrates that CSD may be a viable treatment option for patients with a variety of etiologies of VAs.
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Affiliation(s)
| | - Ricardo Lugo
- Vanderbilt Heart and Vascular Institute, Nashville, Tennessee
| | - Pablo Saavedra
- Vanderbilt Heart and Vascular Institute, Nashville, Tennessee
| | - George Crossley
- Vanderbilt Heart and Vascular Institute, Nashville, Tennessee
| | - Walter Clair
- Vanderbilt Heart and Vascular Institute, Nashville, Tennessee
| | - Sharon Shen
- Vanderbilt Heart and Vascular Institute, Nashville, Tennessee
| | | | - Jay Montgomery
- Vanderbilt Heart and Vascular Institute, Nashville, Tennessee
| | | | | | | | - Eric Lambright
- Vanderbilt Heart and Vascular Institute, Nashville, Tennessee
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12
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Farrell M, Yoneda Z, Montgomery J, Crawford D, Wray LL, Xu M, Kolek MJ, Richardson T, Lugo R, Metawee M, Michaud G, Estrada JC, Saavedra P, Shen S, Kanagasundram A, Ellis CR, Crossley G, Roden D, Shoemaker MB. Non-pulmonary vein mediated atrial fibrillation: A novel sub-phenotype. PLoS One 2017; 12:e0184354. [PMID: 28880943 PMCID: PMC5589236 DOI: 10.1371/journal.pone.0184354] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2017] [Accepted: 08/22/2017] [Indexed: 11/30/2022] Open
Abstract
Background Atrial fibrillation (AF) is a mechanistically heterogeneous disorder, and the ability to identify sub-phenotypes (“endophenotypes”) of AF would assist in the delivery of personalized medicine. We used the clinical response to pulmonary vein isolation (PVI) to identify a sub-group of patients with non-PV mediated AF and sought to define the clinical associations. Methods Subjects enrolled in the Vanderbilt AF Ablation Registry who underwent a repeat AF ablation due to arrhythmia recurrence were analyzed on the basis of PV reconnection. Subjects who had no PV reconnection were defined as “non-PV mediated AF”. A comparison group of subjects were identified who had AF that was treated with PVI-only and experienced no arrhythmia recurrence >12 months. They were considered a group enriched for “PV-mediated AF”. Univariate and multivariable binary logistic regression analysis was performed to investigate clinical associations between the PV and non-PV mediated AF groups. Results Two hundred and twenty nine subjects underwent repeat AF ablation and thirty three (14%) had no PV reconnection. They were compared with 91 subjects identified as having PV-mediated AF. Subjects with non-PV mediated AF were older (64 years [IQR 60,71] vs. 60 [52,67], P = 0.01), more likely to have non-paroxysmal AF (82% [N = 27] vs. 35% [N = 32], P<0.001), and had a larger left atrium (LA) (4.2cm [3.6,4.8] vs. 4.0 [3.3,4.4], P = 0.04). In univariate analysis, age (per decade: OR 1.56 [95% CI: 1.04 to 2.33], P = 0.03), LA size (per cm: OR 1.8 [1.06 to 3.21], P = 0.03) and non-paroxysmal AF (OR 8.3 [3.10 to 22.19], P<0.001) were all significantly associated with non-PV mediated AF. However, in multivariable analysis only non-paroxysmal AF was independently associated with non-PV mediated AF (OR 7.47 [95% CI 2.62 to 21.29], P<0.001), when adjusted for age (per decade: OR 1.25 [0.81 to 1.94], P = 0.31), male gender (OR 0.48 [0.18 to 1.28], P = 0.14), and LA size (per 1cm: 1.24 [0.65 to 2.33], P = 0.52). Conclusions Non-paroxysmal AF was the only clinical variable found to be independently associated with non-PV mediated AF. We demonstrated that analysis of AF ablation outcomes data can serve as a tool to successfully identify a sub-phenotype of subjects who have non-PV mediated AF. Clinical trial registration ClinicalTrials.gov ID # NCT02404415.
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Affiliation(s)
- Maureen Farrell
- Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee, United States of America
| | - Zachary Yoneda
- Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee, United States of America
| | - Jay Montgomery
- Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee, United States of America
| | - Diane Crawford
- Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee, United States of America
| | - Lauren Lee Wray
- Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee, United States of America
| | - Meng Xu
- Department of Biostatistics, Vanderbilt University, Nashville, Tennessee, United States of America
| | - Matthew J. Kolek
- Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee, United States of America
| | - Travis Richardson
- Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee, United States of America
| | - Ricardo Lugo
- Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee, United States of America
| | - Mohamed Metawee
- Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee, United States of America
| | - Greg Michaud
- Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee, United States of America
| | - Juan Carlos Estrada
- Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee, United States of America
| | - Pablo Saavedra
- Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee, United States of America
| | - Sharon Shen
- Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee, United States of America
| | - Arvindh Kanagasundram
- Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee, United States of America
| | - Christopher R. Ellis
- Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee, United States of America
| | - George Crossley
- Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee, United States of America
| | - Dan Roden
- Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee, United States of America
- Department of Biomedical Informatics, Vanderbilt University, Nashville, Tennessee, United States of America
- Department of Pharmacology, Vanderbilt University, Nashville, Tennessee, United States of America
| | - M. Benjamin Shoemaker
- Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee, United States of America
- * E-mail:
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Pereira C, Ferrando N, Lugo R, Mougin P, de Hemptinne J. Predictive evaluation of phase equilibria in biofuel systems using molecular thermodynamic models. J Supercrit Fluids 2016. [DOI: 10.1016/j.supflu.2016.07.025] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Vottelerd P, Anton Y, Lugo R. Cadmium affects the mitochondrial viability and the acid soluble thiols concentration in liver, kidney, heart and gills of Ancistrus brevifilis (Eigenmann, 1920). Open Vet J 2015. [DOI: 10.5455/ovj.2015.v5.i2.p166] [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] [Indexed: 11/06/2022] Open
Abstract
The freshwater fish Ancistrus brevifilis, which is found in Venezuelan rivers, is considered a potential sentinel fish in ecotoxicological studies. The cadmium (Cd) effect on the mitochondrial viability (MV) and acid soluble thiols levels (AST) in A. brevifilis tissues (liver, kidney, heart, and gill) was evaluated. Forty-two fish with similar sizes and weights were randomly selected, of which 7 fish (with their respective replicate) were exposed for 7 and 30 days to a Cd sublethal concentration (0.1 mg.l-1). We determined the MV through a Janus Green B colorimetric assay and we obtained the concentration of AST by Ellmans method. Mitochondrial viability decreased in fish exposed to Cd for 30 days with the liver being the most affected tissue. We also detected a significant decrease in AST levels was in fishes exposed to Cd for 7 days in liver and kidney tissues; these results suggests that AST levels are elevated in some tissues may act as cytoprotective and adaptive alternative mechanism related to the ROS detoxification, maintenance redox status and mitochondrial viability. Organ-specifics variations were observed in both assays. We conclude that the Cd exposure effect on AST levels and MV, vary across fish tissues and is related to the exposure duration, the molecule dynamics in different tissues, the organism and environmental conditions.
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Corbeto EL, Gonzalez V, Lugo R, Almirall MR, Espelt R, Avecilla A, González I, Campo I, Arranz E, Casabona J. Discordant prevalence of Chlamydia trachomatis in asymptomatic couples screened by two screening approaches. Int J STD AIDS 2014; 26:27-32. [DOI: 10.1177/0956462414528686] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
This study was carried out to observe the effect of screening both members of an asymptomatic couple for Chlamydia trachomatis. First void urine samples were collected from 105 women and their male sex partners. Women were recruited for screening at a sexual health clinical setting (age 16–25 years), and home sampling screening options were used for men. Using PCR we detected seven positive C. trachomatis samples in women (6.6%) and five in men (4.6%). The concordant infection rate was 33% (3/9 couples). Routine urine screening of the female partner might result in substantial underestimation of the C. trachomatis prevalence within the couple, where perhaps 56% of the couples where at least one partner tested positive would remain undiagnosed. Screening both partners compared with women- or men-only screening increased the detection rate of positive couples. Furthermore, the use of alternative screening approaches in different clinical settings increases testing in at risk populations.
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Affiliation(s)
- Evelin L Corbeto
- Centre for Epidemiological Studies on HIV/STI in Catalonia (CEEISCAT), Institut Catala d'Oncologia (ICO), Agencia de Salut Publica de Catalunya (ASPC), Generalitat de Catalunya, Badalona, Spain
- CIBER Epidemiología y Salud Pública (CIBERESP), Spain
- Department of Paediatrics, Obstetrics and Gynaecology, and Preventive Medicine, Univ Autonoma Barcelona, Bellaterra, Cerdanyola, Spain
| | - Victoria Gonzalez
- Centre for Epidemiological Studies on HIV/STI in Catalonia (CEEISCAT), Institut Catala d'Oncologia (ICO), Agencia de Salut Publica de Catalunya (ASPC), Generalitat de Catalunya, Badalona, Spain
- CIBER Epidemiología y Salud Pública (CIBERESP), Spain
- Microbiology Service, Fundacio Institut d'Investigacio en Ciencies de la Salut Germans Trias i Pujol, Hospital Universitari Germans Trias i Pujol, Univ Autonoma Barcelona, Badalona, Spain
| | - R Lugo
- Centre for Epidemiological Studies on HIV/STI in Catalonia (CEEISCAT), Institut Catala d'Oncologia (ICO), Agencia de Salut Publica de Catalunya (ASPC), Generalitat de Catalunya, Badalona, Spain
- CIBER Epidemiología y Salud Pública (CIBERESP), Spain
| | - Ma Rosa Almirall
- Sexual and Reproductive Health Centre, ASSIR Esquerre, Barcelona, Spain
| | - Ramon Espelt
- Sexual and Reproductive Health Centre, CAP Sant Fèlix, Sabadell, Spain
| | | | - Isabel González
- Sexual and Reproductive Health Centre Mataró-Maresme, Mataró, Spain
| | - Imma Campo
- Youth Health Centre for Contraception and Sexuality (CJAS), Barcelona, Spain
| | | | - Jordi Casabona
- Centre for Epidemiological Studies on HIV/STI in Catalonia (CEEISCAT), Institut Catala d'Oncologia (ICO), Agencia de Salut Publica de Catalunya (ASPC), Generalitat de Catalunya, Badalona, Spain
- CIBER Epidemiología y Salud Pública (CIBERESP), Spain
- Department of Paediatrics, Obstetrics and Gynaecology, and Preventive Medicine, Univ Autonoma Barcelona, Bellaterra, Cerdanyola, Spain
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Enestvedt BK, Lugo R, Guarner-Argente C, Shah P, Falk GW, Furth E, Ginsberg GG. Location, location, location: does early cancer in Barrett's esophagus have a preference? Gastrointest Endosc 2013; 78:462-7. [PMID: 23622975 DOI: 10.1016/j.gie.2013.03.167] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [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: 12/11/2012] [Accepted: 03/07/2013] [Indexed: 12/13/2022]
Abstract
BACKGROUND Early cancer (high-grade dysplasia [HGD] and intramucosal carcinoma [ImCa]) associated with Barrett's esophagus (BE) may have a circumferential spatial predilection. OBJECTIVE To describe the esophageal circumferential location of early cancer in BE. DESIGN AND SETTING Retrospective study, single tertiary referral center. PATIENTS AND INTERVENTION One hundred nineteen patients were referred for endoscopic eradication therapy for early cancer associated with BE. Endoscopic images and reports and pathology were reviewed. MAIN OUTCOME MEASUREMENTS Circumferential location designation of early cancer in BE by using a clock-face orientation. RESULTS One hundred nineteen of 131 patients referred for endoscopic eradication therapy had a location designation for their advanced histology (91.9%). There were a total of 57 patients (47.9%) with HGD and 62 patients (52.1%) with ImCa. There was a significantly higher rate of early cancer (HGD or ImCa) in the right hemisphere (12 to 6 o'clock location) compared with the left hemisphere (84.9% vs 15.1%, P < .0001). The highest percentage of early cancer was found in the 12 to 3 o'clock quadrant (64.7%); 71.9% of HGD and 58.1% of ImCa lesions were located in the 12 to 3 o'clock quadrant. LIMITATIONS Retrospective design, single center. CONCLUSIONS Early cancer associated with BE is far more commonly found in the right hemisphere of the esophagus (12 to 6 o'clock) with the highest rate in the 12 to 3 o'clock quadrant. These findings support enhanced scrutiny of the right hemisphere of the esophagus during surveillance and endoscopic treatment of patients with BE.
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Affiliation(s)
- Brintha K Enestvedt
- Department of Medicine, Division of Gastroenterology, Temple University School of Medicine, Philadelphia, Pennsylvania, USA
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Vives N, Lugo R, López E, Garcia de Olalla P, Minguell S, Barrabeig I, Pons P, Lopez-Grado E, Ferré I, Escriche R, Armengol P, Vall M, Soler-Palacin P, Leon I, Gascon I, Vicente AM, Falguera G, Avecilla-Palau A, Martinez C, Barberá MJ, González V, Caylà J, Casabona J. Increase in gonorrhoea among very young adolescents, Catalonia, Spain, January 2012 to June 2013. Euro Surveill 2013; 18:20560. [DOI: 10.2807/1560-7917.es2013.18.33.20560] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Binary file ES_Abstracts_Final_ECDC.txt matches
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Affiliation(s)
- N Vives
- Department of Paediatrics, Obstetrics, Gynaecology and Preventive Medicine, Universitat Autònoma de Barcelona (UAB), Barcelona, Spain
- Institut d'Investigació Germans Trias i Pujol (IGTP), Badalona, Spain
- CIBER Epidemiología y Salud Pública (CIBERESP), Madrid, Spain
- Centre for Epidemiological Studies on STI/HIV/AIDS in Catalonia (CEEISCAT)-ICO-Agència de Salut Pública de Catalunya, Barcelona, Spain
| | - R Lugo
- Institut d'Investigació Germans Trias i Pujol (IGTP), Badalona, Spain
- Centre for Epidemiological Studies on STI/HIV/AIDS in Catalonia (CEEISCAT)-ICO-Agència de Salut Pública de Catalunya, Barcelona, Spain
- CIBER Epidemiología y Salud Pública (CIBERESP), Madrid, Spain
| | - E López
- Department of Paediatrics, Obstetrics, Gynaecology and Preventive Medicine, Universitat Autònoma de Barcelona (UAB), Barcelona, Spain
- CIBER Epidemiología y Salud Pública (CIBERESP), Madrid, Spain
- Centre for Epidemiological Studies on STI/HIV/AIDS in Catalonia (CEEISCAT)-ICO-Agència de Salut Pública de Catalunya, Barcelona, Spain
- Institut d'Investigació Germans Trias i Pujol (IGTP), Badalona, Spain
| | - P Garcia de Olalla
- Epidemiological service of Public Health Agency of Barcelona, Barcelona, Spain
- CIBER Epidemiología y Salud Pública (CIBERESP), Madrid, Spain
| | - S Minguell
- Epidemiological Surveillance Unit of Tarragona, Tarragona, Spain
| | - I Barrabeig
- Epidemiological Surveillance Unit of Costa de Ponent, Hospitalet del Llobregat, Spain
| | - P Pons
- Epidemiological Surveillance Unit of Tarragona, Tarragona, Spain
| | - E Lopez-Grado
- Reproductive and Sexual Health Care Programme, Centre d'Atenció Primària (CAP) Sant Fèlix, Institut Català de la Salut (ICS) , Sabadell, Spain
| | - I Ferré
- Reproductive and Sexual Health Care Centre, Badalona Serveis Assistencials (BSA) , Badalona, Spain
| | - R Escriche
- Reproductive and Sexual Health Care Programme, CAP Manso, ICS, Barcelona, Spain
| | - P Armengol
- Sexually Transmitted Infections Unit, Hospital Universitari Vall d’Hebrón, ICS, Barcelona, Spain
| | - M Vall
- Sexually Transmitted Infections Unit, Hospital Universitari Vall d’Hebrón, ICS, Barcelona, Spain
| | - P Soler-Palacin
- Unitat de Patologia Infecciosa i Immunodeficiències de Pediatria. Hospital Universitari Vall d'Hebron, Institut de Recerca Vall d'Hebron, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - I Leon
- CAP La Marina, ICS, Barcelona, Spain
| | - I Gascon
- CAP La Marina, ICS, Barcelona, Spain
| | - A M Vicente
- CAP Roquetes-Canteres, ICS, Barcelona, Spain
| | - G Falguera
- Reproductive and Sexual Health Care Programme, Centre d'Atenció Primària (CAP) Sant Fèlix, Institut Català de la Salut (ICS) , Sabadell, Spain
| | - A Avecilla-Palau
- Reproductive and Sexual Health Care Centre, Badalona Serveis Assistencials (BSA) , Badalona, Spain
| | - C Martinez
- Reproductive and Sexual Health Care Programme, CAP Manso, ICS, Barcelona, Spain
| | - M J Barberá
- Sexually Transmitted Infections Unit, Hospital Universitari Vall d’Hebrón, ICS, Barcelona, Spain
| | - V González
- Microbiology Service, Hospital Universitari Germans Trias i Pujol, ICS, Badalona, Spain
- Institut d'Investigació Germans Trias i Pujol (IGTP), Badalona, Spain
- CIBER Epidemiología y Salud Pública (CIBERESP), Madrid, Spain
- Centre for Epidemiological Studies on STI/HIV/AIDS in Catalonia (CEEISCAT)-ICO-Agència de Salut Pública de Catalunya, Barcelona, Spain
| | - J Caylà
- Epidemiological service of Public Health Agency of Barcelona, Barcelona, Spain
- CIBER Epidemiología y Salud Pública (CIBERESP), Madrid, Spain
| | - J Casabona
- Department of Paediatrics, Obstetrics, Gynaecology and Preventive Medicine, Universitat Autònoma de Barcelona (UAB), Barcelona, Spain
- Institut d'Investigació Germans Trias i Pujol (IGTP), Badalona, Spain
- CIBER Epidemiología y Salud Pública (CIBERESP), Madrid, Spain
- Centre for Epidemiological Studies on STI/HIV/AIDS in Catalonia (CEEISCAT)-ICO-Agència de Salut Pública de Catalunya, Barcelona, Spain
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Srinivasan S, Meyer RD, Lugo R, Rahimi N. Identification of PDCL3 as a novel chaperone protein involved in the generation of functional VEGF receptor 2. J Biol Chem 2013; 288:23171-81. [PMID: 23792958 DOI: 10.1074/jbc.m113.473173] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [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: 01/24/2023] Open
Abstract
Angiogenesis, a hallmark step in tumor metastasis and ocular neovascularization, is driven primarily by the function of VEGF ligand on one of its receptors, VEGF receptor 2 (VEGFR-2). Central to the proliferation and ensuing angiogenesis of endothelial cells, the abundance of VEGFR-2 on the surface of endothelial cells is essential for VEGF to recognize and activate VEGFR-2. We have identified phosducin-like 3 (PDCL3, also known as PhLP2A), through a yeast two-hybrid system, as a novel protein involved in the stabilization of VEGFR-2 by serving as a chaperone. PDCL3 binds to the juxtamembrane domain of VEGFR-2 and controls the abundance of VEGFR-2 by inhibiting its ubiquitination and degradation. PDCL3 increases VEGF-induced tyrosine phosphorylation and is required for VEGFR-2-dependent endothelial capillary tube formation and proliferation. Taken together, our data provide strong evidence for the role of PDCL3 in angiogenesis and establishes the molecular mechanism by which it regulates VEGFR-2 expression and function.
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Affiliation(s)
- Srimathi Srinivasan
- Department of Pathology, Boston University School of Medicine, Boston, Massachusetts 02118, USA
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Lugo R, No author NA, Vargas A, Lemus L. Histopathological changes in the head kidney induced by cadmium in a neotropical fish Colossoma macropomum. Open Vet J 2013. [DOI: 10.5455/ovj.2013.v3.i2.p145] [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] [Indexed: 12/23/2022] Open
Abstract
We evaluated the effect of cadmium (Cd) on the structure and function of the head kidney in the freshwater fish Colossoma macropomum (C. macropomum). Juveniles were exposed to 0.1 mg/L CdCl2 for 31 days. Blood samples were examined using hematological tests and head kidney histology was determined by light microscopy. The concentration of Cd in the head and trunk kidneys was measured using an atomic absorption spectrophotometer. Cd produced histopathological changes in the head kidney, the most evident of these being: the thickening of the vein wall, an increase in the number of basophils/mast cells close to blood vessels and a severe depletion of hematopoietic precursors especially the granulopoietic series. In the blood, a decrease in the total leucocytes and hemoglobin concentration was observed. Cd-exposed fish showed higher Cd concentrations in the trunk kidney than the head kidney. In conclusion, exposure to Cd affected precursor hematopoietic cells in C. macropomum.
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Corbeto EL, Lugo R, Martró E, Falguera G, Ros R, Avecilla A, Coll C, Saludes V, Casabona J. Epidemiological features and determinants for Chlamydia trachomatis infection among women in Catalonia, Spain. Int J STD AIDS 2011; 21:718-22. [PMID: 21139152 DOI: 10.1258/ijsa.2010.010223] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
We determined the prevalence of Chlamydia trachomatis (CT) infection and risk factors for its acquisition by women aged less than 35 years who were attending sexual health centres in the province of Barcelona in 2007. A convenience sample of 397 adolescents and young adult women aged between 16 and 35 years, stratified by age and recruitment site, were tested using realtime polymerase chain reaction by CT DNA. A standardized questionnaire was used to collect epidemiological and behavioural data on the participants, which were analysed in a multivariate logistic regression model. The overall prevalence of CT was 4%, significantly higher in those under 25 years of age (5.8% versus 1.6% over 25). The independent risk factors for CT infection were: foreign origin (odds ratio [OR] 4.7; confidence interval [CI] 1.02-21.8), having had a sexual partner in the last three months (OR 4.59; CI 1.16-18.08) and tobacco use the last 12 months (OR 6.38; CI 1.16-34.93). In conclusion, this is the first study performed in Catalonia showing a high prevalence of CT in young women, consistent with trends in the rest of Europe. Systematic monitoring of CT infection in sentinel populations such as this will inform future targeted screening programmes in our setting.
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Affiliation(s)
- E L Corbeto
- Center for Epidemiological Studies on HIV/AIDS & STI of Catalonia, ICO/Health Department, Generalitat de Catalunya, Badalona, Spain.
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Martin-Iguacel R, Llibre JM, Nielsen H, Heras E, Matas L, Lugo R, Clotet B, Sirera G. Lymphogranuloma venereum proctocolitis: a silent endemic disease in men who have sex with men in industrialised countries. Eur J Clin Microbiol Infect Dis 2010; 29:917-25. [PMID: 20509036 DOI: 10.1007/s10096-010-0959-2] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2010] [Accepted: 05/06/2010] [Indexed: 10/19/2022]
Abstract
Lymphogranuloma venereum (LGV) is a sexually transmitted disease (STD) caused by serovars L1-L3 of Chlamydia trachomatis. Rare in the western world prior to 2003, different outbreaks or clusters of LGV have been reported in Europe, North America and Australia among men who have sex with men (MSM) over the past few years. The majority were HIV infected MSM with high-risk sexual behaviour and a high rate of concomitant STD, including hepatitis C. Most of them presented with a proctitis syndrome and only a few with the classical bubonic form. A previously non-described serovar, L2b, has been identified as the main causative agent of the epidemic. A delay in diagnosis has been the rule because of the misleading symptomatology of LGV proctitis, the unfamiliarity of the disease to physicians, and the lack of a routine diagnostic test for LGV serovars. It is crucial to increase the awareness of the disease among physicians for prompt diagnosis and treatment, to avoid complications, and to stop ongoing transmission. It has additional public health implications since LGV may facilitate the transmission and acquisition of HIV and other STD.
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Affiliation(s)
- R Martin-Iguacel
- Department of Infectious Diseases, Aalborg Hospital, Aarhus University Hospital, Hobrovej 18, Aalborg, Denmark.
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Corona T, Lugo R, Medina R, Sotelo J. [A short praziquantel regimen for the treatment of parenchymatous neurocysticercosis]. GAC MED MEX 1999; 135:369-72. [PMID: 10491891] [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: 02/14/2023] Open
Abstract
OBJECTIVE Fifteen-day praziquantel therapy for parenchymal neurocysticercosis has been shown to be effective. Plasma and cerebrospinal fluid concentrations of praziquantel peak two hours after administration. Maintenance of high concentrations of the drug for six hours may be an adequate therapy for the disease. METHODS Thirty patients with parenchymal neurocysticercosis were treated with three oral doses of praziquantel(25 mg/kg) at two-hour intervals. Intramuscular dexamethasone (10 mg/day) was administered for three days after the praziquantel treatment. RESULTS Cysts disappeared in 21 patients and showed a decrease in number of 30 to 60% in seven patients. Two patients remained without change. Considering the total number of cysts, this therapy showed a 70.7% eradication rate. Two patients had seizures, six reported headache, and nausea was frequently reported. Patients under antiepileptic treatment did not have seizures. CONCLUSION The cost and duration of treatment with praziquantel were significantly reduced and the inflammation that follow the destruction of the parasite was treated sequentially.
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Affiliation(s)
- T Corona
- Instituto Nacional de Neurología y Neurocirugía MVS, México, D.F
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Mesko TW, Lugo R, Breitholtz T. Horseshoe anomaly of the appendix: a previously undescribed entity. Surgery 1989; 106:563-6. [PMID: 2772830] [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: 01/02/2023]
Abstract
Anomalies of the appendix are extremely rare. The case presented here has not been previously described and is that of a "horseshoe" appendix in a 33-year-old man with sigmoid diverticulitis. This appendiceal variant cannot be classified into any of the existing categories of appendiceal anomalies.
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Affiliation(s)
- T W Mesko
- Department of Surgery, Lenox Hill Hospital, New York, N.Y
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