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Remollo S, Werner M, Blasco J, López-Rueda A, San Roman L, Jimenez-Gomez E, Bravo Rey I, Vega P, Murias E, Rosati S, Pérez-García C, González E, Manso X, Aixut S, Chirife Chaparro O, Terceño M, Bashir S, Pumar JM, Ruiz-González E, Méndez JC, Aguilar Tejedor Y, Zamarro J, Castaño M, Daunis-I-Estadella P, Puig J. First-Pass Effect in M1-Occlusion Stroke Patients Treated with Combined Stent-Retriever/Large-Bore Distal Aspiration Catheter Thrombectomy. Clin Neuroradiol 2023; 33:701-708. [PMID: 36856786 DOI: 10.1007/s00062-023-01264-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Accepted: 01/17/2023] [Indexed: 03/02/2023]
Abstract
INTRODUCTION Combined stent-retriever/large-bore distal aspiration catheter (LB-DAC) thrombectomy was recently introduced to treat large-vessel occlusion; however, it is unclear whether larger inner diameters improve outcomes. We compared angiographic and clinical outcomes in patients with occlusions of the M1 segment of the middle cerebral artery treated with mechanical thrombectomy using extra-LB-DAC versus LB-DAC in combination with stent-retrievers. METHODS We analyzed consecutive patients with M1 occlusion included in the ROSSETTI registry treated with non-balloon guide catheter combined LB-DAC/stent-retriever thrombectomy between June 2019 and April 2022. We compared demographics, baseline clinical variables, procedural variables, angiographic outcomes, and clinical outcomes [National Institute of Health Stroke Scale score at 24 h (24h-NIHSS) and modified Rankin scale score at 3 months] between patients treated with extra-LB-DAC (Sofia Plus, MIVI Q6, Catalyst7; inner diameter, 0.068″-0.070″) versus LB-DAC (Sofia 5F, MIVI Q5, Catalyst 6; inner diameter, 0.055″-0.064″). Primary outcome was the first-pass effect (FPE) rate, defined as near-complete/complete reperfusion (mTICI 2c-3) after a single pass of the device. RESULTS We included 324 patients (extra-LB-DAC, 185, 57.1% patients). Demographics, clinical data, and clinical outcomes were similar between the two groups; however, there was a trend towards improvement in National Institute of Health Stroke Scale score at 24 h (24h-NIHSS) in the cohort treated with extra-LB-DAC 9 points (IQR 4;16 points) vs. 12 points (IQR 4;18 points, P = 0.083). Patients treated with extra-LB-DAC had higher FPE rate (47% vs. 30.9%; P = 0.003) and higher modified FPE (mTICI ≥ 2b after a single pass) rate (65.9% vs 46.8%; P = 0.001). The use of extra-LB-DAC was an independent factor in predicting FPE (odds ratio 1.982, 95% confidence interval 1.250-3.143, P = 0.004). CONCLUSION Our results suggest that in combined LB-DAC/stent-retriever thrombectomy, a larger aspiration catheter inner diameter is associated with higher rates of FPE and mFPE.
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Affiliation(s)
- S Remollo
- Interventional Neuroradiology Unit, Hospital Universitari Germans Trias i Pujol, Badalona, Spain
| | - M Werner
- Interventional Neuroradiology Unit, Hospital Universitari Germans Trias i Pujol, Badalona, Spain
| | - J Blasco
- Neurointerventional Department CDI, Hospital Clinic of Barcelona, Barcelona, Spain
| | - A López-Rueda
- Neurointerventional Department CDI, Hospital Clinic of Barcelona, Barcelona, Spain
| | - L San Roman
- Neurointerventional Department CDI, Hospital Clinic of Barcelona, Barcelona, Spain
| | - E Jimenez-Gomez
- Diagnostic and Therapeutical Neuroradiology Unit, Hospital Universitario Reina Sofía, Córdoba, Spain
| | - I Bravo Rey
- Neuroradiology Department, Hospital Universitario Reina Sofia, Córdoba, Spain
| | - P Vega
- Radiology Department, Hospital Universitario Central de Asturias, Oviedo, Spain
| | - E Murias
- Radiology Department, Hospital Universitario Central de Asturias, Oviedo, Spain
| | - S Rosati
- Neurointerventional Unit, Hospital Clinico Universitario San Carlos, Madrid, Spain
| | - C Pérez-García
- Neurointerventional Unit, Hospital Clinico Universitario San Carlos, Madrid, Spain
| | - E González
- Interventional Neuroradiology, Radiology Department, Cruces University Hospital, Barakaldo, Spain
| | - X Manso
- Interventional Neuroradiology, Radiology Department, Cruces University Hospital, Barakaldo, Spain
| | - S Aixut
- Neuroradiology Department, Hospital Universitari de Bellvitge, l'Hospitalet de Llobregat, Llobregat, Spain
| | - O Chirife Chaparro
- Neuroradiology Department, Hospital Universitari de Bellvitge, l'Hospitalet de Llobregat, Llobregat, Spain
| | - M Terceño
- Stroke Unit, Department of Neurology, Hospital Universitari de Girona Doctor Josep Trueta, Girona, Spain
| | - S Bashir
- Stroke Unit, Department of Neurology, Hospital Universitari de Girona Doctor Josep Trueta, Girona, Spain
| | - J M Pumar
- Neuroradiology Department, Complexo Hospitalario Universitario de Santiago de Compostela, Santiago de Compostela, Spain
| | - E Ruiz-González
- Interventional Neuroradiology, Hospital General Universitario de Alicante, Alicante, Spain
| | - J C Méndez
- Interventional Neuroradiology, Hospital Universitario Ramon y Cajal, Madrid, Spain
| | - Y Aguilar Tejedor
- Radiology Department, Hospital Universitario Insular de Gran Canaria, Gran Canaria, Spain
| | - J Zamarro
- Interventional Neuroradiology, Hospital Clínico Universitario Virgen de la Arrixaca, Murcia, Spain
| | - M Castaño
- Interventional Neuroradiology Unit, Department of Radiology, Hospital Universitario de Salamanca, Salamanca, Spain
| | - P Daunis-I-Estadella
- Department of Computer Science, Applied Mathematics and Statistics, University of Girona, Girona, Spain
| | - J Puig
- Department of Radiology (IDI) and Institut d'Investigació Biomèdica de Girona, Hospital Universitari Doctor Josep Trueta, Girona, Spain.
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Ena J, Segura-Heras JV, Fonseca-Aizpuru EM, López-Reboiro ML, Gracia-Gutiérrez A, Martín-Oterino JA, Martin-Urda Diez-Canseco A, Pérez-García C, Ramos-Rincón JM, Gómez-Huelgas R. Derivation and validation of a risk score for admission to the Intensive Care Unit in patients with COVID-19. Rev Clin Esp 2022; 222:1-12. [PMID: 34561194 PMCID: PMC8437856 DOI: 10.1016/j.rceng.2021.06.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2021] [Accepted: 06/08/2021] [Indexed: 11/29/2022]
Abstract
BACKGROUND This work aims to identify and validate a risk scale for admission to intensive care units (ICU) in hospitalized patients with coronavirus disease 2019 (COVID-19). METHODS We created a derivation rule and a validation rule for ICU admission using data from a national registry of a cohort of patients with confirmed SARS-CoV-2 infection who were admitted between March and August 2020 (N = 16,298). We analyzed the available demographic, clinical, radiological, and laboratory variables recorded at hospital admission. We evaluated the performance of the risk score by estimating the area under the receiver operating characteristic curve (AUROC). Using the β coefficients of the regression model, we developed a score (0-100 points) associated with ICU admission. RESULTS The mean age of the patients was 67 years; 57% were men. A total of 1420 (8.7%) patients were admitted to the ICU. The variables independently associated with ICU admission were age, dyspnea, Charlson Comorbidity Index score, neutrophil-to-lymphocyte ratio, lactate dehydrogenase levels, and presence of diffuse infiltrates on a chest X-ray. The model showed an AUROC of 0.780 (CI: 0.763-0.797) in the derivation cohort and an AUROC of 0.734 (CI: 0.708-0.761) in the validation cohort. A score of greater than 75 points was associated with a more than 30% probability of ICU admission while a score of less than 50 points reduced the likelihood of ICU admission to 15%. CONCLUSION A simple prediction score was a useful tool for forecasting the probability of ICU admission with a high degree of precision.
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Affiliation(s)
- J Ena
- Servicio de Medicina Interna, Hospital Marina Baixa, Alicante, Spain.
| | - J V Segura-Heras
- Instituto Universitario de Investigación «Centro de Investigación Operativa» (CIO), Universidad Miguel Hernández, Alicante, Spain
| | | | - M L López-Reboiro
- Servicio de Medicina Interna, Hospital Público de Monforte de Lemos, Lugo, Spain
| | | | - J A Martín-Oterino
- Servicio de Medicina Interna, Complejo Asistencial Universitario de Salamanca, Salamanca, Spain
| | | | - C Pérez-García
- Servicio de Medicina Interna, Hospital do Salnes, Vilagarcía de Arousa, Pontevedra, Spain
| | - J M Ramos-Rincón
- Departamento de Medicina Clínica, Universidad Miguel Hernández de Elche, Alicante, Spain
| | - R Gómez-Huelgas
- Departamento de Medicina Interna, Hospital Regional de Málaga, Instituto de Investigación Biomédica (IBIMA), Universidad de Málaga, Málaga, Spain
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Carrión-Barberà I, Polino L, Mejía-Torres M, Pérez-García C, Ciria M, Pros A, Rodríguez-García E, Monfort J, Salman-Monte TC. Leflunomide: A safe and effective alternative in systemic lupus erythematosus. Autoimmun Rev 2021; 21:102960. [PMID: 34560304 DOI: 10.1016/j.autrev.2021.102960] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2021] [Accepted: 09/19/2021] [Indexed: 11/02/2022]
Affiliation(s)
- I Carrión-Barberà
- Rheumatology Department, Hospital del Mar/Parc de Salut Mar, Barcelona, Spain.
| | - L Polino
- Rheumatology Department, Hospital del Mar/Parc de Salut Mar, Barcelona, Spain.
| | - M Mejía-Torres
- Rheumatology Department, Hospital del Mar/Parc de Salut Mar, Barcelona, Spain.
| | - C Pérez-García
- Rheumatology Department, Hospital del Mar/Parc de Salut Mar, Barcelona, Spain.
| | - M Ciria
- Rheumatology Department, Hospital del Mar/Parc de Salut Mar, Barcelona, Spain.
| | - A Pros
- Rheumatology Department, Hospital del Mar/Parc de Salut Mar, Barcelona, Spain.
| | - E Rodríguez-García
- Nephrology Department, Hospital del Mar/Parc de Salut Mar, Barcelona, Spain.
| | - J Monfort
- Rheumatology Department, Hospital del Mar/Parc de Salut Mar, Barcelona, Spain.
| | - T C Salman-Monte
- Rheumatology Department, Hospital del Mar/Parc de Salut Mar, Barcelona, Spain.
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Prior-Español A, Sánchez-Piedra C, Campos J, Manero FJ, Pérez-García C, Bohórquez C, Busquets-Pérez N, Blanco-Madrigal JM, Díaz-Torne C, Sánchez-Alonso F, Mateo L, Holgado-Pérez S. Clinical factors associated with discontinuation of ts/bDMARDs in rheumatic patients from the BIOBADASER III registry. Sci Rep 2021; 11:11091. [PMID: 34045525 PMCID: PMC8159943 DOI: 10.1038/s41598-021-90442-w] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2020] [Accepted: 05/12/2021] [Indexed: 01/14/2023] Open
Abstract
Biologic and targeted synthetic disease-modifying antirheumatic drugs (ts/bDMARDs) play a pivotal role in the treatment of rheumatoid arthritis (RA), psoriatic arthritis (PsA), and ankylosing spondylitis (AS). Persistence of therapy provides an index of a drug’s overall effectiveness. The objective of the study was to identify factors associated with discontinuation of ts/bDMARDs in a real-world dataset. The study population comprised patients diagnosed with RA, PsA, and AS included in the BIOBADASER registry for whom follow-up data were available until November 2019. Patient features and treatment data were included in the analysis. The Kaplan–Meier method was used to study survival of the different drugs according to the reason for discontinuation. Factors associated with discontinuation were studied using Cox regression models and bivariate and multivariate analyses. P values of less than 0.05 were regarded as statistically significant. The study population comprised 4,752 patients who received a total of 8,377 drugs, of which 4,411 (52.65%) were discontinued. The Kaplan–Meier curves showed that survival for first-line treatment was greater in all 3 groups (p < 0.001). Patients with RA had a greater risk of discontinuation if they were younger (HR, 0.99; 95% CI 0.99–1.00), if they were receiving anti-TNFα agents (HR, 0.61; 95% CI 0.54–0.70), and if they had more comorbid conditions (HR, 1.09; 95% CI 1.00–1.17). Patients with PsA had a higher risk if they were women (HR, 1.36; 95% CI 1.15–1.62) and if they were receiving other ts/bDMARDs (HR, 1.29; 95% CI 1.05–1.59). In patients with AS, risk increased with age (HR, 1.01; 95% CI 1.00–1.02), as did the number of comorbid conditions (HR, 1.27; 95% CI 1.12–1.45). The factors that most affected discontinuation of ts/bDMARDs were line of treatment, age, type of drug, sex, comorbidity and the year of initiation of treatment. The association with these factors differed with each disease, except for first-line treatment, which was associated with a lower risk of discontinuation in all 3 diseases.
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Affiliation(s)
- A Prior-Español
- Rheumatology Unit, Hospital Universitari Germans Trias I Pujol, Carretera del Canyet, s/n, 08916, Badalona, Barcelona, Spain.
| | | | - J Campos
- Rheumatology Unit, Hospital Puerta de Hierro, Madrid, Spain
| | - F J Manero
- Rheumatology Unit, Hospital Universitario Miguel Servet, Zaragoza, Spain
| | | | - C Bohórquez
- Rheumatology Unit, Hospital Universitario Príncipe de Asturias, Alcalá de Henares, Spain
| | - N Busquets-Pérez
- Rheumatology Unit, Hospital General de Granollers, Barcelona, Spain
| | | | - C Díaz-Torne
- Hospital Santa Creu I Sant Pau, Barcelona, Spain
| | | | - L Mateo
- Rheumatology Unit, Hospital Universitari Germans Trias I Pujol, Carretera del Canyet, s/n, 08916, Badalona, Barcelona, Spain
| | - S Holgado-Pérez
- Rheumatology Unit, Hospital Universitari Germans Trias I Pujol, Carretera del Canyet, s/n, 08916, Badalona, Barcelona, Spain
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Pérez-García C, Gómez-Escalonilla C, Rosati S, López-Ibor L, Egido JA, Simal P, Moreu M. Use of intracranial stent as rescue therapy after mechanical thrombectomy failure-9-year experience in a comprehensive stroke centre. Neuroradiology 2020; 62:1475-1483. [PMID: 32607747 DOI: 10.1007/s00234-020-02487-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [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: 03/09/2020] [Accepted: 06/24/2020] [Indexed: 02/06/2023]
Abstract
PURPOSE There is no established rescue treatment in patients with mechanical thrombectomy (MT) failure. Our aim is to analyse whether the use of an intracranial stent improves prognosis in these patients. METHODS Retrospective analysis of a prospective cohort of patients with ischemic stroke due to middle cerebral artery occlusion (MCA) or distal intracranial carotid artery (ICA) occlusion, from September 2009 to April 2019 in our comprehensive stroke care centre. Patients with MT failure were identified and dichotomized into two groups according to whether or not an intracranial stent was implanted. We analysed clinical outcomes in both groups. RESULTS There was MT failure in 60 patients (14%) of the 433 with large vessel occlusion in distal ICA and proximal MCA. A stent was placed in 20 of them (33.3%). Compared to patients without rescue stenting, they showed better rates of independence at 3 months (mRS ≤ 2) 45% vs 2.5% (p < 0.001) and lower mortality 15% vs 50% (p = 0.009), maintaining statistical significance after multivariate analysis, without a significant increase of the rate of symptomatic intracranial haemorrhage (p = 0.209). CONCLUSION Placement of an intracranial stent as rescue therapy after MT failure was associated with better clinical outcome without significant increase in haemorrhagic complications. We believe that this procedure should be appraised in these patients.
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Affiliation(s)
- C Pérez-García
- Interventional Neuroradiology, Hospital Clínico San Carlos, Calle del Prof Martín Lagos s/n, 28040, Madrid, Spain.
| | - C Gómez-Escalonilla
- Neurology, Hospital Clínico San Carlos, Calle del Profesor Martín Lagos s/n, 28040, Madrid, Spain
| | - S Rosati
- Interventional Neuroradiology, Hospital Clínico San Carlos, Calle del Prof Martín Lagos s/n, 28040, Madrid, Spain
| | - L López-Ibor
- Interventional Neuroradiology, Hospital Clínico San Carlos, Calle del Prof Martín Lagos s/n, 28040, Madrid, Spain
| | - J A Egido
- Neurology, Hospital Clínico San Carlos, Calle del Profesor Martín Lagos s/n, 28040, Madrid, Spain
| | - P Simal
- Neurology, Hospital Clínico San Carlos, Calle del Profesor Martín Lagos s/n, 28040, Madrid, Spain
| | - M Moreu
- Interventional Neuroradiology, Hospital Clínico San Carlos, Calle del Prof Martín Lagos s/n, 28040, Madrid, Spain
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Moreu M, Pérez-García C, Gómez-Escalonilla C, Rosati S. Dual SAVE technique for mechanical thrombectomy rescue on MCA bifurcation clots. J Neurointerv Surg 2020; 12:1034. [PMID: 32586911 PMCID: PMC7509522 DOI: 10.1136/neurintsurg-2020-016061] [Citation(s) in RCA: 4] [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: 03/26/2020] [Revised: 05/05/2020] [Accepted: 05/09/2020] [Indexed: 11/23/2022]
Abstract
The Stent retriever Assisted Vacuum-locked Extraction (SAVE) technique in mechanical thrombectomy consists of the simultaneous use of a stent retriever and a distal aspiration catheter, with the removal of both as a unit when performing the thrombectomy pass. This is a safe procedure that provides a high rate of first-pass reperfusion.1 In the distal M1 segment of the middle cerebral artery (MCA) occlusions, with the distal portion of the clot extending to the upper and lower MCA branches, mechanical thrombectomy can be challenging since the thrombus is not fully trapped, with risk of distal clot migration to the branch in which the retriever is not placed. In these cases the double stent-retriever technique has been described as a rescue strategy.2–4 We describe a case of the combined use of SAVE and double stent-retriever techniques as a rescue strategy in a patient with tandem occlusion of the proximal internal carotid artery and distal MCA—the D-SAVE technique. (video 1)
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Affiliation(s)
- M Moreu
- Neurointerventional Unit, Radiology Department, Hospital Clínico Universitario San Carlos, Madrid, Spain
| | - C Pérez-García
- Neurointerventional Unit, Radiology Department, Hospital Clínico Universitario San Carlos, Madrid, Spain
| | - C Gómez-Escalonilla
- Department of Neurology, Hospital Clínico Universitario San Carlos, Madrid, Spain
| | - S Rosati
- Neurointerventional Unit, Radiology Department, Hospital Clínico Universitario San Carlos, Madrid, Spain
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Baldissera-Aradas J, Rodríguez-Villamil L, Blanco-Fernández R, Pérez-García C, Viejo de la guerra G, González-Rodríguez I, Mosquera-Madera J. Rectal culture-directed antibiotic prophylaxis before transrectal prostate biopsy: Reduced infectious complications and healthcare costs. Actas Urol Esp 2018; 42:465-472. [PMID: 29331324 DOI: 10.1016/j.acuro.2017.10.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2017] [Revised: 09/29/2017] [Accepted: 10/31/2017] [Indexed: 10/18/2022]
Abstract
BACKGROUND Transrectal ultrasound-guided prostate biopsy (TUPB) is associated with infectious complications (ICs), which are related to a greater prevalence of ciprofloxacin-resistant bacteria (CRB) in rectal flora. We examined the ICs that occurred in 2 groups: A guided antibiotic prophylaxis (GP) group and an empiric prophylaxis (EP) group. We assessed the financial impact of GP. MATERIAL AND METHODS The GP group was studied prospectively (June 2013 to July 2014). We collected rectal cultures (RCs) before the TUPB, which were seeded on selective media with ciprofloxacin to determine the presence of CRB. The patients with sensitive bacteria were administered ciprofloxacin. Patients with resistant bacteria were administered GP according to the RC antibiogram. The EP group was studied retrospectively (January 2011 to June 2009). RCs were not performed, and all patients were treated with ciprofloxacin as prophylaxis. The ICs in both groups were recorded during a period no longer than 30 days following TUPB (electronic medical history). RESULTS Three hundred patients underwent TUPB, 145 underwent GP, and 155 underwent EP. In the GP group, 23 patients (15.86%) presented CRB in the RCs. Only one patient (0.7%) experienced a UTI. In the EP group, 26 patients (16.8%) experienced multiple ICs (including 2 cases of sepsis) (P<.005). The estimated total cost, including the management of the ICs, was €57,076 with EP versus €4802.33 with GP. The average cost per patient with EP was €368.23 versus €33.11 with GP. GP achieved an estimated total savings of €52,273.67. Six patients had to undergo GP to prevent an IC. CONCLUSIONS GP is associated with a marked decrease in the incidence of ICs caused by CRB and reduced healthcare costs.
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Malfaz C, Pérez-García C, del Valle Diéguez M, Echenagusia Boyra M, Río Gómez J, Castro Reyes E. Revisión de 2 casos de pseudoaneurismas de carótida común, micótico y secundario a radioterapia, tratados con stent recubiertos. Angiología 2017. [DOI: 10.1016/j.angio.2016.11.007] [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: 11/27/2022]
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Pérez-García C, Rouxel J, Akcha F. Development of a comet-FISH assay for the detection of DNA damage in hemocytes of Crassostrea gigas. Aquat Toxicol 2015; 161:189-195. [PMID: 25710447 DOI: 10.1016/j.aquatox.2015.01.022] [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] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/24/2014] [Revised: 01/14/2015] [Accepted: 01/25/2015] [Indexed: 06/04/2023]
Abstract
In this work, the DNA-damaging effect of hydrogen peroxide on the structural integrity of nucleolar organizer regions (NORs) was studied for the first time by comet-FISH in the Pacific oyster Crassostrea gigas. Global DNA damage was assessed in hemocytes using an alkaline version of the comet assay. Next, NOR sensitivity was analyzed by mapping major rDNA repeat unit by fluorescence in situ hybridization (FISH) on the same comet slides. Exposure of hemocytes to 100 μM of hydrogen peroxide induced a significant increase in both DNA damage and number of FISH-signals of major ribosomal genes versus the control. Moreover, a significant positive correlation was shown between DNA damage as measured by the comet assay (percentage of DNA in comet tail) and the number of signals present in comet tails. This study demonstrates the potential value of the comet-FISH assay for the study of DNA damage induced by genotoxicant exposure of target genes. It offers a perspective for better understanding the impact of genotoxicity on animal physiology and fitness.
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Affiliation(s)
- C Pérez-García
- IFREMER, Department of Biogeochemistry and Ecotoxicology, Laboratory of Ecotoxicology, Rue de l'Ile d'Yeu, BP 21105, 44311 Nantes Cedex 03, France.
| | - J Rouxel
- IFREMER, Department of Biogeochemistry and Ecotoxicology, Laboratory of Ecotoxicology, Rue de l'Ile d'Yeu, BP 21105, 44311 Nantes Cedex 03, France
| | - F Akcha
- IFREMER, Department of Biogeochemistry and Ecotoxicology, Laboratory of Ecotoxicology, Rue de l'Ile d'Yeu, BP 21105, 44311 Nantes Cedex 03, France.
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Herradón G, Pérez-García C. Targeting midkine and pleiotrophin signalling pathways in addiction and neurodegenerative disorders: recent progress and perspectives. Br J Pharmacol 2014; 171:837-48. [PMID: 23889475 DOI: 10.1111/bph.12312] [Citation(s) in RCA: 57] [Impact Index Per Article: 5.7] [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: 05/31/2013] [Revised: 07/09/2013] [Accepted: 07/21/2013] [Indexed: 01/03/2023] Open
Abstract
UNLABELLED Midkine (MK) and pleiotrophin (PTN) are two neurotrophic factors that are highly up-regulated in different brain regions after the administration of various drugs of abuse and in degenerative areas of the brain. A deficiency in both MK and PTN has been suggested to be an important genetic factor, which confers vulnerability to the development of the neurodegenerative disorders associated with drugs of abuse in humans. In this review, evidence demonstrating that MK and PTN limit the rewarding effects of drugs of abuse and, potentially, prevent drug relapse is compiled. There is also convincing evidence that MK and PTN have neuroprotective effects against the neurotoxicity and development of neurodegenerative disorders induced by drugs of abuse. Exogenous administration of MK and/or PTN into the CNS by means of non-invasive methods is proposed as a novel therapeutic strategy for addictive and neurodegenerative diseases. Identification of new molecular targets downstream of the MK and PTN signalling pathways or pharmacological modulation of those already known may also provide a more traditional, but probably effective, therapeutic strategy for treating addictive and neurodegenerative disorders. LINKED ARTICLES This article is part of a themed section on Midkine. To view the other articles in this section visit http://dx.doi.org/10.1111/bph.2014.171.issue-4.
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Affiliation(s)
- G Herradón
- Pharmacology lab, Department of Pharmaceutical and Health Sciences, Facultad de Farmacia, , Universidad CEU San Pablo, Boadilla del Monte, Madrid, Spain
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Gramage E, Martín Y, Ramanah P, Pérez-García C, Herradón G. Midkine regulates amphetamine-induced astrocytosis in striatum but has no effects on amphetamine-induced striatal dopaminergic denervation and addictive effects: functional differences between pleiotrophin and midkine. Neuroscience 2011; 190:307-17. [DOI: 10.1016/j.neuroscience.2011.06.014] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2011] [Revised: 05/30/2011] [Accepted: 06/02/2011] [Indexed: 12/22/2022]
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Petrović V, Pérez-García C, Pasantes JJ, Satović E, Prats E, Plohl M. A GC-rich satellite DNA and karyology of the bivalve mollusk Donax trunculus: a dominance of GC-rich heterochromatin. Cytogenet Genome Res 2009; 124:63-71. [PMID: 19372670 DOI: 10.1159/000200089] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/13/2008] [Indexed: 11/19/2022] Open
Abstract
We characterized the DTF2 satellite DNA family of the clam Donaxtrunculus and compared its chromosomal localization with cytogenetic data revealed by fluorochrome banding, C-banding, and 28S rDNA FISH. In contrast to the other satellites detected previously in this species, DTF2 is an abundant (2%) GC-rich satellite that exhibits CpG methylation. Sequence characteristics of DTF2 indicate that its evolution is not affected by constraints that might indicate some functional interactions. Fluorescence in situ hybridization revealed subtelomeric location of this satellite on a subset of 14 out of 19 D. trunculus chromosome pairs. The chromomycin A(3) (CMA) staining of GC-rich regions on D. trunculus chromosomes revealed a complex banding pattern that overlaps completely with C-bands. In total, only three bands show subtelomeric location, while 13 bands are located interstitially, one of them being coincident with the 28S rDNA hybridization signal. No bands, either CMA positive (GC-rich) or DAPI positive (AT-rich) were detected at centromeric chromosomal positions. Only two of the CMA-positive bands co-localize with the DTF2 satellite, showing a) the presence of small islands of GC-rich repetitive sequences that remained undetected by CMA/C-banding and b) the abundance of DTF2-divergent GC-rich sequences at interstitial chromosomal locations.
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Affiliation(s)
- V Petrović
- Department of Molecular Biology, Ruder Bosković Institute, Zagreb, Croatia
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13
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Alguacil LF, Pérez-García C, Salas E, González-Martín C, Castillo C, Polanco MJ, Herradón G, Morales L. Subcutaneous tetrodotoxin and inflammatory pain. Br J Anaesth 2008; 100:729-30. [PMID: 18407950 DOI: 10.1093/bja/aen066] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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14
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Torrente SV, Güerri RC, Pérez-García C, Benito P, Carbonell J. Amaurosis in patients with giant cell arteritis: treatment with anti-tumour necrosis factor-?;. Intern Med J 2007; 37:280-1. [PMID: 17388875 DOI: 10.1111/j.1445-5994.2006.01299.x] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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15
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Pérez-García C, Maymo J, Lisbona Pérez MP, Almirall Bernabé M, Carbonell Abelló J. Drug-induced systemic lupus erythematosus in ankylosing spondylitis associated with infliximab. Rheumatology (Oxford) 2005; 45:114-6. [PMID: 16319096 DOI: 10.1093/rheumatology/kei220] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
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16
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Torrente Segarra V, Pérez-García C, Knobel Freud H. [Candida albicans acute septic arthritis in a patient with human immunodeficiency virus infection]. Rev Clin Esp 2004; 204:119-20. [PMID: 15023314 DOI: 10.1157/13058810] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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17
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Peña B, Pérez-García C, Sanz-Anchelergues A, Míguez DG, Muñuzuri AP. Transverse instabilities in chemical Turing patterns of stripes. Phys Rev E Stat Nonlin Soft Matter Phys 2003; 68:056206. [PMID: 14682870 DOI: 10.1103/physreve.68.056206] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/23/2003] [Indexed: 05/24/2023]
Abstract
We present a theoretical and experimental study of the sideband instabilities in Turing patterns of stripes. We compare numerical computations of the Brusselator model with experiments in a chlorine dioxide-iodine-malonic acid (CDIMA) reaction in a thin gel layer reactor in contact with a continuously refreshed reservoir of reagents. Spontaneously evolving Turing structures in both systems typically exhibit many defects that break the symmetry of the pattern. Therefore, the study of sideband instabilities requires a method of forcing perfect, spatially periodic Turing patterns with the desired wave number. This is easily achieved in numerical simulations. In experiments, the photosensitivity of the CDIMA reaction permits control and modulation of Turing structures by periodic spatial illumination with a wave number outside the stability region. When a too big wave number is imposed on the pattern, the Eckhaus instability may arise, while for too small wave numbers an instability sets in forming zigzags. By means of the amplitude equation formalism we show that, close to the hexagon-stripe transitions, these sideband instabilities may be preceded by an amplitude instability that grows transient spots locally before reconnecting with stripes. This prediction is tested in both the reaction-diffusion model and the experiment.
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Affiliation(s)
- B Peña
- Instituto de Física, Universidad de Navarra, E-31080 Pamplona, Spain
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Madruga S, Pérez-García C, Lebon G. Convective instabilities in two superposed horizontal liquid layers heated laterally. Phys Rev E Stat Nonlin Soft Matter Phys 2003; 68:041607. [PMID: 14682953 DOI: 10.1103/physreve.68.041607] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/13/2003] [Indexed: 05/24/2023]
Abstract
This work is devoted to the theoretical study of the stability of two superposed horizontal liquid layers bounded by two solid planes and subjected to a horizontal temperature gradient. The liquids are supposed to be immiscible with a nondeformable interface. The forces acting on the system are buoyancy and interfacial tension. Four different flow patterns and temperature profiles are found for the basic state. A linear perturbative analysis with respect to two- and three-dimensional perturbations reveals the existence of three kinds of patterns. Depending on the relative height of both liquids several situations are predicted: either wave propagation from cold to the hot regions, or waves propagating in the opposite direction or still stationary longitudinal rolls. The behavior of three different pairs of liquids which have been used in experiments on bilayers under vertical gradient by other authors have been examined. The instability mechanisms are discussed and a qualitative interpretation of the different behaviors exhibited by the system is provided. In some configurations it is possible to find a codimension-two point created by the interaction of two Hopf modes with different frequencies and wave numbers. These results suggest to consider two liquid layers as an interesting prototype for the study of propagation and interaction of waves in the context of the Bénard-Marangoni problem.
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Affiliation(s)
- S Madruga
- Departement AGO, Liège University, B5, Sart-Tilman, B-4000 Liège, Belgium.
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Abstract
Histamine H(3) receptors were first described in the eighties but finally cloned four years ago. They are G-protein coupled, mostly presynaptic, and are involved in the control of the synthesis and/or release of different neurotransmitters both in the central nervous system and the periphery. The availabiliy of specific ligands has permitted the study of potential therapeutic applications of either stimulating or blocking the function of these receptors. There is experimental evidence that drugs targeted at histamine H(3) receptors could be beneficial for neurodegenerative diseases such as Alzheimer and Parkinson's disease, epilepsy, drug abuse and several affective, appetite and sleeping disorders, among others. This review presents recent advances in this field.
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Affiliation(s)
- L F Alguacil
- Lab. Pharmacology, San Pablo CEU University, Madrid, Spain.
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Peña B, Pérez-García C. Stability of Turing patterns in the Brusselator model. Phys Rev E Stat Nonlin Soft Matter Phys 2001; 64:056213. [PMID: 11736060 DOI: 10.1103/physreve.64.056213] [Citation(s) in RCA: 90] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2000] [Revised: 06/18/2001] [Indexed: 11/07/2022]
Abstract
The selection and competition of Turing patterns in the Brusselator model are reviewed. The stability of stripes and hexagons towards spatial perturbations is studied using the amplitude equation formalism. For hexagonal patterns these equations include both linear and nonpotential spatial terms enabling distorted solutions. The latter modify substantially the stability diagrams and select patterns with wave numbers quite different from the critical value. The analytical results from the amplitude formalism agree with direct simulations of the model. Moreover, we show that slightly squeezed hexagons are locally stable in a full range of distortion angles. The stability regions resulting from the phase equation are similar to those obtained numerically by other authors and to those observed in experiments.
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Affiliation(s)
- B Peña
- Instituto de Física, Universidad de Navarra, E-31080 Pamplona, Spain
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Echebarria B, Pérez-García C. Stability of hexagonal patterns in Bénard-Marangoni convection. Phys Rev E Stat Nonlin Soft Matter Phys 2001; 63:066307. [PMID: 11415227 DOI: 10.1103/physreve.63.066307] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/24/2000] [Indexed: 05/23/2023]
Abstract
Hexagonal patterns in Bénard-Marangoni (BM) convection are studied within the framework of amplitude equations. Near threshold they can be described with Ginzburg-Landau equations that include spatial quadratic terms. The planform selection problem between hexagons and rolls is investigated by explicitly calculating the coefficients of the Ginzburg-Landau equations in terms of the parameters of the fluid. The results are compared with previous studies and with recent experiments. In particular, steady hexagons that arise near onset can become unstable as a result of long-wave instabilities. Within weakly nonlinear theory, a two-dimensional phase equation for long-wave perturbations is derived. This equation allows us to find stability regions for hexagon patterns in BM convection.
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Affiliation(s)
- B Echebarria
- Department of Engineering Sciences and Applied Mathematics, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208, USA
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Pérez-García C, Morales L, Cano MV, Sancho I, Alguacil LF. Effects of histamine H3 receptor ligands in experimental models of anxiety and depression. Psychopharmacology (Berl) 1999; 142:215-20. [PMID: 10102775 DOI: 10.1007/s002130050882] [Citation(s) in RCA: 52] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
Histamine H3 receptor ligands have been proposed to be of potential therapeutic interest for the treatment of different central nervous system disorders; however, the psychopharmacological properties of these drugs have not been studied extensively. In this work, we investigated the possible involvement of histamine H3 receptor function in experimental models of anxiety (elevated plus-maze) and depression (forced swimming test). Male Sprague-Dawley rats were treated i.p. with the histamine H3 receptor agonist R-alpha-methylhistamine (10 mg/kg) or the histamine H3 receptor antagonist thioperamide (0.2, 2 and 10 mg/kg) and 30 min afterwards the time spent in the open arms of an elevated plus-maze was registered for 5 min. The immobility time of male OF1 mice in the forced swimming test was recorded for 6 min, 1 h after the i.p. administration of R-alpha-methylhistamine (10 and 20 mg/kg), thioperamide (0.2, 2, 10 and 20 mg/kg) or another histamine H3 receptor antagonist, clobenpropit (5 mg/kg). The locomotor activity of mice was checked in parallel by means of an activity meter. Both saline controls and active drug controls were used in all the paradigms. Neither thioperamide nor R-alpha-methylhistamine significantly changed animal behaviour in the elevated plus-maze. R-alpha-methylhistamine and the higher dose of thioperamide assayed (20 mg/kg) were also inactive in the forced swimming test. By contrast, thioperamide (0.2-10 mg/kg) dose-dependently decreased immobility, the effect being significant at 10 mg/kg (33% reduction of immobility); clobenpropit produced an effect qualitatively similar (24% reduction of immobility). None of these histamine H3 receptor antagonists affected locomotor activity. These preliminary results suggest that the histamine H3 receptor blockade could be devoid of anxiolytic potential but have antidepressant effects. Besides, the stimulation of these receptors does not seem to be followed by changes in the behavioural parameters studied.
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Affiliation(s)
- C Pérez-García
- Laboratory of Pharmacology, University of San Pablo CEU, Madrid, Spain
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23
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Abstract
Histamine H3 receptor ligands are usually tested in guinea-pig intestine preparations. A possible desensitization of agonist-induced twitch inhibition was studied in longitudinal muscle-myenteric plexus from ileal segments. A cumulative concentration-response curve for R-alpha-methylhistamine was made; when a second curve was made 30 min afterwards, a marked decrease of pD2 and a more modest decrease of Emax were observed without changes in tissue sensitivity to electrical stimulation or morphine inhibition. At 120 min, pD2 and Emax were not different from those for the first curve. Receptor desensitization seems homologous and reversible and could interfere with repetitive testing of histamine H3 receptor ligands.
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Affiliation(s)
- C Pérez-García
- Laboratory of Pharmacology, University San Pablo CEU, Madrid, Spain
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Krmpotic D, Mindlin GB, Pérez-García C. Bénard-Marangoni convection in square containers. Phys Rev E Stat Phys Plasmas Fluids Relat Interdiscip Topics 1996; 54:3609-3613. [PMID: 9965508 DOI: 10.1103/physreve.54.3609] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Kubstrup C, Herrero H, Pérez-García C. Fronts between hexagons and squares in a generalized Swift-Hohenberg equation. Phys Rev E Stat Phys Plasmas Fluids Relat Interdiscip Topics 1996; 54:1560-1569. [PMID: 9965228 DOI: 10.1103/physreve.54.1560] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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26
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Millán-Rodríguez J, Bestehorn M, Pérez-García C, Friedrich R, Neufeld M. Defect Motion in Rotating Fluids. Phys Rev Lett 1995; 74:530-533. [PMID: 10058781 DOI: 10.1103/physrevlett.74.530] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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27
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López-Ruiz R, Mindlin GB, Pérez-García C, Tredicce JR. Nonlinear interaction of transverse modes in a CO2 laser. Phys Rev A 1994; 49:4916-4921. [PMID: 9910811 DOI: 10.1103/physreva.49.4916] [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: 05/22/2023]
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28
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Ezersky AB, Garcimartín A, Mancini HL, Pérez-García C. Spatiotemporal structure of hydrothermal waves in Marangoni convection. Phys Rev E Stat Phys Plasmas Fluids Relat Interdiscip Topics 1993; 48:4414-4422. [PMID: 9961122 DOI: 10.1103/physreve.48.4414] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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Ondarçuhu T, Millán-Rodríguez J, Mancini HL, Garcimartín A, Pérez-García C. Bénard-Marangoni convective patterns in small cylindrical layers. Phys Rev E Stat Phys Plasmas Fluids Relat Interdiscip Topics 1993; 48:1051-1057. [PMID: 9960689 DOI: 10.1103/physreve.48.1051] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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Rivero Puente A, Sánchez-Alvarez J, Pérez-García C, Acha Arrieta MV, García de Lucas MD, Rivero Marcotegui M. [Still's disease: atypical manifestations and potential markers of severe visceral disease]. An Med Interna 1993; 10:283-6. [PMID: 8334206] [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] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
We present two patients with Still's disease which, in addition to the typical clinical manifestations, showed rare visceral alterations. The first case referred abdominal pain and a sustained hyperamilasemia was detected. The second case suffered a severe multiple organic failure, characterized by hepatic failure, with electric signs of encephalopathy, hydroelectrolytic disorder, rhabdomyolysis and disseminated intravascular coagulation. During this episode, we detected hyponatremia, reduction of leukocytes and normalization of GSR, modifications already described by other authors in cases similar to these ones, although without considered relevant until now. We comment these results and their value as markers of visceral affectation.
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Affiliation(s)
- A Rivero Puente
- Hospital Virgen del Camino, Departamento Navarro de Salud, Pamplona
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31
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Ezersky AB, Garcimartín A, Burguete J, Mancini HL, Pérez-García C. Hydrothermal waves in Marangoni convection in a cylindrical container. Phys Rev E Stat Phys Plasmas Fluids Relat Interdiscip Topics 1993; 47:1126-1131. [PMID: 9960114 DOI: 10.1103/physreve.47.1126] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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32
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Rodríguez JM, Pérez-García C, Bestehorn M, Fantz M, Friedrich R. Pattern formation in convection of rotating fluids with broken vertical symmetry. Phys Rev A 1992; 46:4729-4735. [PMID: 9908691 DOI: 10.1103/physreva.46.4729] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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Ciliberto S, Pampaloni E, Pérez-García C. Competition between different symmetries in convective patterns. Phys Rev Lett 1988; 61:1198-1201. [PMID: 10038727 DOI: 10.1103/physrevlett.61.1198] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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35
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Jou D, Pérez-García C, García-Colín LS, Rodríguez RF. Generalized hydrodynamics and extended irreversible thermodynamics. Phys Rev A Gen Phys 1985; 31:2502-2508. [PMID: 9895785 DOI: 10.1103/physreva.31.2502] [Citation(s) in RCA: 52] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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