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1.
J Endovasc Ther ; : 15266028221148383, 2023 Jan 21.
Artículo en Inglés | MEDLINE | ID: mdl-36680500

RESUMEN

PURPOSE: Ascending aorta (AAo) acute pathology still has an open-surgery indication with a high mortality rate associated to cardiopulmonary bypass and circulatory arrest. In these cases, the endovascular aortic approach could be an excellent option. The aim of the present study is to detail an optimized technique for the endovascular treatment of AAo diseases, based on thoracic endovascular aortic repair (TEVAR) and transcatheter aortic valve implantation (TAVI) procedures. TECHNIQUE: The procedure implies the usual preparation for TEVAR and TAVI implants. A transient pacemaker lead is necessary to deliver the prosthesis under "rapid pacing." As in the TAVI technique, a final high-support guidewire is placed at the left ventricle. The proximal landing zone is the sinotubular junction (zone 0B). Transesophageal echocardiography is essential to ensure aortic valve function and patency in coronary arteries during the delivery. To assess a potential occlusion of the brachiocephalic artery, a guidewire is positioned in the descending aorta from the axillary artery. Finally, a noncovered stent is implanted to stabilize the AAo prosthesis. CONCLUSION: The technique presented here can standardize a safe and reproducible procedure to endovascular repair of AAo diseases. However, new devices specifically designed for the AAo could facilitate the transcatheter approach. CLINICAL IMPACT: Ascending aorta acute pathology still has an open-surgery indication with high mortality rate associated to cardiopulmonary bypass and circulatory arrest. Moreover, near 30% of patients are not considered suitable for surgery because of age, critical situation or the presence of severe comorbidities. The present study provides a detailed and optimized technique for the endovascular treatment of ascending aorta disease, based on TEVAR and TAVI procedures.

2.
Scand J Clin Lab Invest ; 81(4): 282-289, 2021 07.
Artículo en Inglés | MEDLINE | ID: mdl-33974458

RESUMEN

BACKGROUND: Early identification of patients with COVID-19 who may develop critical illness is of great importance. METHODS: In this study a retrospective cohort of 264 COVID-19 cases admitted at Macarena University was used for development and internal validation of a risk score to predict the occurrence of critical illness in hospitalized patients with COVID-19. Backward stepwise logistic regression was used to derive the model, including clinical and laboratory variables predictive of critical illness. Internal validation of the final model used bootstrapped samples and the model scoring derived from the coefficients. External validation was performed in a cohort of 154 cases admitted at Valme and Virgen del Rocio University Hospital. RESULTS: A total of 62 (23.5%) patients developed a critical illness during their hospitalization stay, 21 (8.0%) patients needed invasive ventilation, 34 (12.9%) were admitted at the ICU and the overall mortality was of 14.8% (39 cases). 5 variables were included in the final model: age >59.5 years (OR: 3.11;95%CI 1.39-6.97), abnormal CRP results (OR: 5.76;95%CI 2.32-14.30), abnormal lymphocytes count (OR: 3.252;95%CI 1.56-6.77), abnormal CK results (OR: 3.38;95%CI 1.59-7.20) and abnormal creatinine (OR: 3.30;95%CI 1.42-7.68). The AUC of this model was 0.850 with sensitivity of 65% and specificity of 87% and the IDI and NRI were 0.1744 and 0.2785, respectively. The validation indicated a good discrimination for the external population. CONCLUSIONS: Biomarkers add prognostic information in COVID-19 patients. Our risk-score provides an easy to use tool to identify patients who are likely to develop critical illness during their hospital stay.


Asunto(s)
Biomarcadores/sangre , COVID-19/etiología , Adulto , Anciano , Anciano de 80 o más Años , Proteína C-Reactiva/análisis , COVID-19/mortalidad , COVID-19/terapia , Creatina Quinasa/sangre , Creatinina/sangre , Enfermedad Crítica , Femenino , Hospitalización , Humanos , Laboratorios , Recuento de Linfocitos , Masculino , Persona de Mediana Edad , Respiración Artificial , Estudios Retrospectivos , Medición de Riesgo , Sensibilidad y Especificidad , Adulto Joven
3.
J Gastroenterol Hepatol ; 33(4): 792-799, 2018 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-29156509

RESUMEN

Exosomes are extracellular microvesicles released from cells, which are involved in many biological and pathological processes, mainly because of their role in intercellular communication. Exosomes derived from colorectal cancer (CRC) cells are related to oncogenesis, tumor cell survival, chemo-resistance, and metastasis. The role of the exosomes in these processes involves the transfer of proteins, RNAs, or mutant versions of proto-oncogenes to the target cells. In recent years, great efforts have been made to identify useful biomarkers in CRC exosomes for diagnosis, prediction of prognosis, and treatment response. This review focuses on recent studies on CRC exosomes, considering isolation, cargo, biomarkers, and the effects of exosomes on the development and progression of CRC, including resistance to antitumor therapy.


Asunto(s)
Neoplasias Colorrectales/patología , Exosomas/fisiología , Biomarcadores de Tumor , Carcinogénesis , Neoplasias Colorrectales/diagnóstico , Neoplasias Colorrectales/tratamiento farmacológico , Neoplasias Colorrectales/metabolismo , Progresión de la Enfermedad , Resistencia a Antineoplásicos , Humanos , Mutación , Proteínas de Neoplasias/metabolismo , Pronóstico , Transporte de Proteínas , Proto-Oncogenes/genética , ARN Neoplásico/metabolismo
4.
New Phytol ; 205(4): 1431-1436, 2015 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-25580981

RESUMEN

For survival, plants have to efficiently adjust their phenotype to environmental challenges, finely coordinating their responses to balance growth and defence. Such phenotypic plasticity can be modulated by their associated microbiota. The widespread mycorrhizal symbioses modify plant responses to external stimuli, generally improving the resilience of the symbiotic system to environmental stresses. Phytohormones, central regulators of plant development and immunity, are instrumental in orchestrating plant responses to the fluctuating environment, but also in the regulation of mycorrhizal symbioses. Exciting advances in the molecular regulation of phytohormone signalling are providing mechanistic insights into how plants coordinate their responses to environmental cues and mycorrhizal functioning. Here, we summarize how these mechanisms permit the fine-tuning of the symbiosis according to the ever-changing environment.


Asunto(s)
Ambiente , Micorrizas/fisiología , Reguladores del Crecimiento de las Plantas/farmacología , Simbiosis/fisiología , Homeostasis/efectos de los fármacos , Micorrizas/efectos de los fármacos , Desarrollo de la Planta/efectos de los fármacos , Simbiosis/efectos de los fármacos
5.
Lancet Oncol ; 15(11): 1263-8, 2014 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-25242048

RESUMEN

BACKGROUND: In the final analysis of the phase 3 COU-AA-301 study, abiraterone acetate plus prednisone significantly prolonged overall survival compared with prednisone alone in patients with metastatic castration-resistant prostate cancer progressing after chemotherapy. Here, we present the final analysis of an early-access protocol trial that was initiated after completion of COU-AA-301 to enable worldwide preapproval access to abiraterone acetate in patients with metastatic castration-resistant prostate cancer progressing after chemotherapy. METHODS: We did a multicentre, open-label, early-access protocol trial in 23 countries. We enrolled patients who had metastatic castration-resistant prostate cancer progressing after taxane chemotherapy. Participants received oral doses of abiraterone acetate (1000 mg daily) and prednisone (5 mg twice a day) in 28-day cycles until disease progression, development of sustained side-effects, or abiraterone acetate becoming available in the respective country. The primary outcome was the number of adverse events arising during study treatment and within 30 days of discontinuation. Efficacy measures (time to prostate-specific antigen [PSA] progression and time to clinical progression) were gathered to guide treatment decisions. We included in our analysis all patients who received at least one dose of abiraterone acetate. This study is registered with ClinicalTrials.gov, number NCT01217697. FINDINGS: Between Nov 17, 2010, and Sept 30, 2013, 2314 patients were enrolled into the early-access protocol trial. Median follow-up was 5·7 months (IQR 3·5-10·6). 952 (41%) patients had a grade 3 or 4 treatment-related adverse event, and grade 3 or 4 serious adverse events were recorded in 585 (25%) people. The most common grade 3 and 4 adverse events were hepatotoxicity (188 [8%]), hypertension (99 [4%]), cardiac disorders (52 [2%]), osteoporosis (31 [1%]), hypokalaemia (28 [1%]), and fluid retention or oedema (23 [1%]). 172 (7%) patients discontinued the study because of adverse events (64 [3%] were drug-related), as assessed by the investigator, and 171 (7%) people died. The funder assessed causes of death, which were due to disease progression (85 [4%]), an unrelated adverse experience (72 [3%]), and unknown reasons (14 [1%]). Of the 86 deaths not attributable to disease progression, 18 (<1%) were caused by a drug-related adverse event, as assessed by the investigator. Median time to PSA progression was 8·5 months (95% CI 8·3-9·7) and median time to clinical progression was 12·7 months (11·8-13·8). INTERPRETATION: No new safety signals or unexpected adverse events were found in this early-access protocol trial to assess abiraterone acetate for patients with metastatic castration-resistant prostate cancer who progressed after chemotherapy. Future work is needed to ascertain the most effective regimen of abiraterone acetate to optimise patients' outcomes. FUNDING: Janssen Research & Development.


Asunto(s)
Androstenoles/administración & dosificación , Recurrencia Local de Neoplasia/tratamiento farmacológico , Prednisolona/administración & dosificación , Antígeno Prostático Específico/sangre , Neoplasias de la Próstata Resistentes a la Castración/tratamiento farmacológico , Administración Oral , Adulto , Anciano , Anciano de 80 o más Años , Antagonistas de Andrógenos/administración & dosificación , Androstenos , Progresión de la Enfermedad , Supervivencia sin Enfermedad , Relación Dosis-Respuesta a Droga , Esquema de Medicación , Quimioterapia Combinada , Humanos , Estimación de Kaplan-Meier , Masculino , Persona de Mediana Edad , Invasividad Neoplásica/patología , Recurrencia Local de Neoplasia/mortalidad , Recurrencia Local de Neoplasia/patología , Estadificación de Neoplasias , Pronóstico , Neoplasias de la Próstata Resistentes a la Castración/mortalidad , Neoplasias de la Próstata Resistentes a la Castración/patología , Análisis de Supervivencia , Resultado del Tratamiento
6.
Pediatr Allergy Immunol ; 25(7): 699-705, 2014 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-25348132

RESUMEN

BACKGROUND: Obese children and adolescents have an increased risk for asthma. A few studies have evaluated the association of insulin resistance and asthma in obese pediatric populations. We examined whether there was a relationship between high degrees of insulin resistance and the presence of asthma in obese children and adolescents. METHODS: A total of 153 patients aged 4-15 years with at or above the 95th percentile BMI for age were prospectively recruited. Assessments included diagnosis of asthma, skin prick test reactivity to common environmental aeroallergens, and HOMA estimated insulin resistance, with the median (2.22) used as a cutoff value to categorize insulin resistance. RESULTS: There were 56 (36.6%) asthmatic and 97 (63.4%) non-asthmatic patients. HOMA values were significantly associated with positive skin tests (p = 0.008) and allergic asthma diagnosis (p = 0.016). Baseline insulin value was significantly associated with the risk of presenting asthma with positive skin testing (odds ratio 1.084, p = 0.037). Differences in age, BMI, and waist circumference were found between the groups of HOMA-IR <2.22 and ≥2.22. Waist circumference (WC) was significantly associated with FVC (p = 0.0001) and FEV1 (p < 0.0003); the greater the WC, the lower FVC and FEV1 values. CONCLUSIONS: Insulin resistance is a risk for allergic asthma in obese children and adolescents. Waist circumference was related to CVF and FEV1 impairment.


Asunto(s)
Asma/epidemiología , Resistencia a la Insulina , Obesidad/epidemiología , Adolescente , Contaminantes Atmosféricos/inmunología , Alérgenos/inmunología , Índice de Masa Corporal , Niño , Preescolar , Femenino , Humanos , Masculino , Estudios Prospectivos , Pruebas Cutáneas , Espirometría
7.
J Card Surg ; 29(4): 478-81, 2014 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-24861676

RESUMEN

Transcatheter aortic valve implantation (TAVI) is associated with various complications, usually related to valve positioning or prosthesis delivery. We report the rare complication of an iatrogenic ventricular septal defect, secondary to aortic annulus disruption after TAVI-transfemoral procedure, generating a significant left-to-right shunt and cardiac failure. Open surgical procedures under cardiopulmonary bypass remain the best option for this lethal complication.


Asunto(s)
Estenosis de la Válvula Aórtica/cirugía , Válvula Aórtica/cirugía , Cateterismo Cardíaco/efectos adversos , Cateterismo Cardíaco/métodos , Tabiques Cardíacos/lesiones , Implantación de Prótesis de Válvulas Cardíacas/efectos adversos , Implantación de Prótesis de Válvulas Cardíacas/métodos , Enfermedad Iatrogénica , Atención Perioperativa , Anciano , Estenosis de la Válvula Aórtica/diagnóstico por imagen , Ecocardiografía , Femenino , Insuficiencia Cardíaca/etiología , Humanos , Complicaciones Posoperatorias/etiología , Rotura/etiología , Índice de Severidad de la Enfermedad
8.
Behav Sci (Basel) ; 14(7)2024 Jun 24.
Artículo en Inglés | MEDLINE | ID: mdl-39062347

RESUMEN

Video game addiction among adolescents, particularly those with ADHD, is a significant concern. To gather more insights into video game usage patterns in this population, we investigated levels of potentially problematic use, passion, motivations, and emotional/behavioral symptoms in adolescents with and without ADHD. Our cross-sectional, multicenter study involved 2513 subjects (Age M = 15.07; SD = 2.82) from 24 schools in Galicia (Spain), including 158 (6.3%) diagnosed with ADHD. We employed an ad hoc questionnaire covering sociodemographic data and ADHD diagnosis, the Questionnaire of Experiences Associated with Video Games (CERV), the scale of passion for video games, reasons for playing video games Questionaire (VMQ), and emotional/behavioral problems assessment (SDQ). Results indicated heightened vulnerability in adolescents with ADHD, manifesting in longer usage durations and higher problematic use scores. Interestingly, ADHD medication did not affect internet gaming disorder development. Motivations for gaming differed between groups, with the ADHD cohort showing distinctions in cognitive development, coping, and violent reward. Additionally, the ADHD group exhibited greater emotional/behavioral symptoms, hyperactivity, and reduced prosocial behavior.

9.
Plant Physiol Biochem ; 215: 109019, 2024 Aug 06.
Artículo en Inglés | MEDLINE | ID: mdl-39146911

RESUMEN

Arbuscular mycorrhizal (AM) fungi improve plant growth, nutrition, fitness and stress tolerance while AM fungi obtain carbohydrates and lipids from the host. This whole process of mutual benefit requires substantial alterations in the structural and functional aspects of the host root cells. These modifications ultimately culminate in the formation of arbuscules, which are specialized intraradical and highly branched fungal structures. Arbuscule-containing cells undergo massive reprogramming to hosting arbuscule and members of the GRAS transcription factor family have been characterized as AM inducible genes which play a pivotal role in these process. Here, we show a functional analysis for the GRAS transcription factor SCL3/SlGRAS18 in tomato. SlGRAS18 interacts with SlDELLA, a central regulator of AM formation. Silencing of SlGRAS18 positively impacts arbuscule development and the improvement in symbiotic status, favouring flowering and therefore progress in the formation and development of fruits in SlGRAS18 silenced plants which parallel to a discernible pattern of mineral nutrient redistribution in leaves. Our results advance the knowledge of GRAS transcription factors involved in the formation and establishment of AM symbiosis and provide experimental evidence for how specific genetic alterations can lead to more effective AM symbiosis.

10.
Breast ; 69: 342-348, 2023 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-37011481

RESUMEN

PURPOSE: Tamoxifen is a drug used for hormone receptor-positive breast cancers, primarily metabolised by the CYP2D6 enzyme into active metabolites such as endoxifen. CYP2D6 displays varying degrees of activity depending on its genotype. This study aims to analyse the effect of an early increase in tamoxifen dose in poor metabolisers (PM) on survival. METHODS: We enrolled 220 patients diagnosed with breast cancer who were treated with tamoxifen. CYP2D6 polymorphisms were determined, and the phenotype was estimated according to the Clinical Pharmacogenetics Implementation Consortium. Disease-free survival (DFS) and overall survival (OS) were analysed considering the entire patient group, and a subgroup of 110 patients selected by Propensity Score Matching (PSM). All women were treated with 20 mg/day of tamoxifen for 5 years, except PM, who initially received 20 mg/day for 4 months, followed by 40 mg/day for 4 months and 60 mg/day for 4 months before returning to the standard dose of 20 mg/day until completing 5 years of treatment. RESULTS: The analysis of the influence of CYP2D6 polymorphisms in the complete group and in the PSM subgroup revealed no significant differences for DFS or OS. Furthermore, DFS and OS were analysed in relation to various covariates such as age, histological grade, nodal status, tumour size, HER-2, Ki-67, chemotherapy, and radiotherapy. Only age, histological grade, nodal status, and chemotherapy treatment demonstrated statistical significance. CONCLUSION: An early increase in tamoxifen dose in PM patients is not associated with survival differences among CYP2D6 phenotypes.


Asunto(s)
Neoplasias de la Mama , Femenino , Humanos , Neoplasias de la Mama/tratamiento farmacológico , Neoplasias de la Mama/genética , Neoplasias de la Mama/metabolismo , Citocromo P-450 CYP2D6/genética , Puntaje de Propensión , Antineoplásicos Hormonales/uso terapéutico , Resultado del Tratamiento , Tamoxifeno/uso terapéutico , Genotipo
11.
Biomed Pharmacother ; 168: 115791, 2023 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-37924793

RESUMEN

Taiwaniaquinoids are a unique family of diterpenoids predominantly isolated from Taiwania cryptomerioides Hayata. Previously, we evaluated the antiproliferative effect of several synthetic taiwaniaquinoids against human lung (A-549), colon (T-84), and breast (MCF-7) tumor cell lines. Herein, we report the in vitro and in vivo antitumor activity of the most potent compounds. Their cytotoxic activity against healthy peripheral blood mononuclear cells (PBMCs) has also been examined. We underscore the limited toxicity of compound C36 in PBMCs and demonstrate that it exerts its antitumor effect in MCF-7 cells (IC50 = 1.8 µM) by triggering an increase in reactive oxygen species, increasing the cell population in the sub-G1 phase of the cell cycle (90 %), and ultimately activating apoptotic (49.6 %) rather than autophagic processes. Western blot results suggested that the underlying mechanism of the C36 apoptotic effects was linked to caspase 9 activation and a rise in the Bax/Bcl-2 ratio. In vivo analyses showed normal behavior and hematological parameters in C57BL/6 mice post C36 treatment. Moreover, no significant impact was observed on the biochemical parameters of these animals, indicating that C36 did not induce liver toxicity. Furthermore, C36 demonstrated a significant reduction in tumor growth in immune-competent C57BL/6 mice implanted with E0771 mouse mammary tumor cells, effectively improving survival rates. These findings position taiwaniaquinoids, particularly compound C36, as promising therapeutic candidates for human breast cancer.


Asunto(s)
Antineoplásicos , Neoplasias de la Mama , Animales , Humanos , Ratones , Femenino , Neoplasias de la Mama/tratamiento farmacológico , Neoplasias de la Mama/patología , Leucocitos Mononucleares/metabolismo , Apoptosis , Ensayos de Selección de Medicamentos Antitumorales , Ratones Endogámicos C57BL , Línea Celular Tumoral , Células MCF-7 , Antineoplásicos/farmacología , Antineoplásicos/uso terapéutico , Antineoplásicos/química , Proliferación Celular
12.
Ann Vasc Surg ; 26(4): 549-58, 2012 May.
Artículo en Inglés | MEDLINE | ID: mdl-22520393

RESUMEN

Because of the pleiotropic effects of statins, it may potentially be used as a locoregional adjuvant in vascular revascularization, tissue engineering, and regenerative procedures. Electron probe X-ray microanalyses and oligonucleotide microarrays were used to identify the global effects of micromolar concentrations of atorvastatin on the gene expression and cell viability of endothelial cells in different states of lysophosphatidic acid (LPA)-induced activation. Treatment with 1-µM atorvastatin for 24 hours significantly reduced the viability of human vascular endothelial cells (HUVECs). However, the same treatment of LPA-preactivated HUVECs produced elevated cell viability levels and an optimal vascular gene expression profile, including endothelial nitric oxide synthase overexpression, endothelin-1 repression, an anti-inflammatory genetic pattern, and upregulation of molecules involved in maintaining the endothelial barrier (vascular endothelial cadherin, claudin 5, tight junction protein 1, integrin ß4). The atorvastatin treatment also produced a repression of microRNA 21 and genes involved in cell proliferation and neointimal formation (vascular endothelial growth factor [VEGF] A, VEGF receptor 1, VEGFC). Results obtained suggest that micromolar atorvastatin therapy can enhance global endothelial function, but its effects on cell viability vary according to the baseline state of cell activation (preactivated, postactivated, or not activated). Preactivation with LPA protects HUVECs against atorvastatin-induced apoptosis and delivers optimal levels of cell viability and functionality.


Asunto(s)
Endotelina-1/genética , Regulación de la Expresión Génica/efectos de los fármacos , Ácidos Heptanoicos/administración & dosificación , Células Endoteliales de la Vena Umbilical Humana/citología , Lisofosfolípidos/farmacología , Óxido Nítrico Sintasa de Tipo III/genética , Pirroles/administración & dosificación , ARN/genética , Apoptosis/efectos de los fármacos , Atorvastatina , Muerte Celular/efectos de los fármacos , Proliferación Celular/efectos de los fármacos , Supervivencia Celular/efectos de los fármacos , Células Cultivadas , Relación Dosis-Respuesta a Droga , Endotelina-1/biosíntesis , Células Endoteliales de la Vena Umbilical Humana/efectos de los fármacos , Células Endoteliales de la Vena Umbilical Humana/metabolismo , Humanos , Inhibidores de Hidroximetilglutaril-CoA Reductasas/administración & dosificación , Óxido Nítrico Sintasa de Tipo III/biosíntesis , Análisis de Secuencia por Matrices de Oligonucleótidos , ARN/biosíntesis
13.
Mycorrhiza ; 22(3): 189-94, 2012 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-21674299

RESUMEN

The effect of the arbuscular mycorrhizal symbiosis (AM) varies in plant cultivars. In the present study, we tested whether wild-type, old and modern tomato cultivars differ in the parameters of the AM interaction. Moreover, the bioprotective effect of AM against the soilborne tomato pathogen Fusarium oxysporum f. sp. lycopersici (Fol) was tested in the different cultivars. Ten tomato cultivars were inoculated with the arbuscular mycorrhizal fungus (AMF) Glomus mosseae alone or in combination with Fol. At the end of the experiment, AM root colonization, Fusarium infection, and the plant fresh weight was determined. The tomato cultivars differed in their susceptibility to AMF and Fol, but these differences were not cultivar age dependent. In all the cultivars affected by Fol, mycorrhization showed a bioprotective effect. Independent of the cultivar age, tomato cultivars differ in their susceptibility to AMF and Fol and the bioprotective effect of mycorrhization, indicating that the cultivar age does not affect the AM parameters tested in this study.


Asunto(s)
Fusarium/fisiología , Glomeromycota/fisiología , Micorrizas/fisiología , Enfermedades de las Plantas/microbiología , Solanum lycopersicum/microbiología , Fusarium/patogenicidad , Simbiosis
14.
Plant Signal Behav ; 17(1): 2031504, 2022 Dec 31.
Artículo en Inglés | MEDLINE | ID: mdl-35105280

RESUMEN

For the establishment of the Arbuscular Mycorrhiza (AM) symbiosis it is essential that epidermis and cortical cells from plant roots suffer a strong reorganization to allow the penetration of intracellular fungal hyphae. In the same manner, the new formation of a periarbuscular membrane and a symbiotic interface with specific compositions are required for a functional symbiosis. It is believed that the cytoskeleton of the plant host plays an essential role in these processes, particularly the microtubule (MT) cytoskeleton, as huge modifications have been observed in the MT array of root cells accompanying the establishment of the AM symbiosis. Recent research has established a link between microtubule rearrangements and arbuscule functioning. However, further research is required to elucidate the specific functions of MT cytoskeleton along the different stages of the arbuscule life cycle and to unravel the signals triggering these changes.


Asunto(s)
Micorrizas , Micorrizas/metabolismo , Raíces de Plantas/metabolismo , Proteínas de Plantas/metabolismo , Simbiosis , Microtúbulos/metabolismo , Regulación de la Expresión Génica de las Plantas
15.
J Card Surg ; 26(2): 197-200, 2011 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-21342263

RESUMEN

Complex aneurysmal disease of the thoracic aorta is commonly treated with the elephant trunk technique using two-stage surgery. However, this procedure is associated with high morbidity and mortality. We present the surgical technique used to correct diffuse aneurysmal aortic disease that involves the aortic arch and the descending aorta. The frozen elephant trunk technique using the E-vita Open prosthesis (hybrid procedure), that combines surgical and interventional technologies, was useful to simplify the conventional surgical procedure in a single-stage approach with optimal results.


Asunto(s)
Aneurisma de la Aorta Torácica/cirugía , Prótesis Vascular , Anciano , Aneurisma de la Aorta Torácica/diagnóstico , Diagnóstico Diferencial , Estudios de Seguimiento , Humanos , Imagen por Resonancia Magnética , Masculino , Diseño de Prótesis , Tomografía Computarizada por Rayos X
17.
Breast ; 54: 106-113, 2020 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-32977298

RESUMEN

BACKGROUND: Trastuzumab is a drug used in HER2-positive breast cancer that increases patient survival. Due to cardiotoxicity is the most important side effect of trastuzumab treatment, cardiac monitoring should be a priority. The purpose of this study is to evaluate plasma NT-proBNP level and major cardiovascular risk factors as possible early predictors of trastuzumab-induced cardiotoxicity in HER2-positive breast cancer patients. METHODS: We conducted a retrospective observational study involving 66 patients with HER2-positive breast cancer treated with trastuzumab. Left ventricle ejection fraction (LVEF), NT-proBNP values, and the history of cardiovascular risk factors were collected. Cardiotoxicity was diagnosed considering a decrease of the LVEF from baseline or clinical manifestation of congestive heart failure. NT-proBNP cut-off points were considered to establish normal or abnormal values according to patient age. RESULTS: 27.3% of the patients suffered cardiotoxicity during trastuzumab treatment. Most cases were diagnosed due to the appearance of cardiac symptomatology (66.7%). Logistic regression analysis showed a significant association of diabetes mellitus (OR 5.9, 95% CI 1.2-28.5, p = 0.028) and high NT-proBNP levels (OR 22.0, 95% CI 5.7-85.4, p < 0.0001) with the development of trastuzumab-induced cardiotoxicity. CONCLUSION: NT-proBNP levels above the upper limit of the normal range adjusted to age or diabetes mellitus seem to be associated with a higher risk of developing cardiotoxicity. However, some limitations of the present study make necessary further studies aimed to clarify whether NT-proBNP and diabetes-associated markers determinations can be useful in the monitoring of cardiotoxicity risk in breast cancer patients undergoing trastuzumab therapy.


Asunto(s)
Antineoplásicos/efectos adversos , Neoplasias de la Mama/tratamiento farmacológico , Insuficiencia Cardíaca/diagnóstico , Péptido Natriurético Encefálico/sangre , Fragmentos de Péptidos/sangre , Trastuzumab/efectos adversos , Adulto , Anciano , Biomarcadores Farmacológicos/análisis , Neoplasias de la Mama/sangre , Cardiotoxicidad/diagnóstico , Diabetes Mellitus/sangre , Monitoreo de Drogas , Femenino , Factores de Riesgo de Enfermedad Cardiaca , Insuficiencia Cardíaca/inducido químicamente , Humanos , Modelos Logísticos , Persona de Mediana Edad , Valor Predictivo de las Pruebas , Receptor ErbB-2/metabolismo , Estudios Retrospectivos , Volumen Sistólico/efectos de los fármacos , Función Ventricular Izquierda/efectos de los fármacos
18.
J Vis Exp ; (157)2020 03 11.
Artículo en Inglés | MEDLINE | ID: mdl-32225152

RESUMEN

Ralstonia solanacearum is a devastating soil borne vascular pathogen that can infect a large range of plant species, causing an important threat to agriculture. However, the Ralstonia model is considerably underexplored in comparison to other models involving bacterial plant pathogens, such as Pseudomonas syringae in Arabidopsis. Research targeted to understanding the interaction between Ralstonia and crop plants is essential to develop sustainable solutions to fight against bacterial wilt disease but is currently hindered by the lack of straightforward experimental assays to characterize the different components of the interaction in native host plants. In this scenario, we have developed a method to perform genetic analysis of Ralstonia infection of tomato, a natural host of Ralstonia. This method is based on Agrobacterium rhizogenes-mediated transformation of tomato roots, followed by Ralstonia soil-drenching inoculation of the resulting plants, containing transformed roots expressing the construct of interest. The versatility of the root transformation assay allows performing either gene overexpression or gene silencing mediated by RNAi. As a proof of concept, we used this method to show that RNAi-mediated silencing of SlCESA6 in tomato roots conferred resistance to Ralstonia. Here, we describe this method in detail, enabling genetic approaches to understand bacterial wilt disease in a relatively short time and with small requirements of equipment and plant growth space.


Asunto(s)
Enfermedades de las Plantas/genética , Enfermedades de las Plantas/microbiología , Raíces de Plantas/microbiología , Ralstonia solanacearum/fisiología , Solanum lycopersicum/genética , Solanum lycopersicum/microbiología , Transformación Genética , Agrobacterium/metabolismo , Antibacterianos/farmacología , Arabidopsis/microbiología , Regulación de la Expresión Génica de las Plantas/efectos de los fármacos , Silenciador del Gen/efectos de los fármacos , Solanum lycopersicum/efectos de los fármacos , Raíces de Plantas/efectos de los fármacos , Raíces de Plantas/genética , Ralstonia solanacearum/efectos de los fármacos , Ralstonia solanacearum/crecimiento & desarrollo , Reproducibilidad de los Resultados , Suelo , Transformación Genética/efectos de los fármacos
19.
Eur Heart J Acute Cardiovasc Care ; 9(5): 406-418, 2020 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-32403935

RESUMEN

BACKGROUND: The coexistence of other comorbidities confers poor outcomes in patients with acute heart failure. Our aim was to determine the characteristics of patients with acute heart failure and cardiorenal anaemia syndrome and the relationship between renal dysfunction and anaemia, alone or combined as cardiorenal anaemia syndrome, on short-term outcomes. METHODS: We analysed the Epidemiology of Acute Heart Failure in Emergency Departments registry (cohort of patients with acute heart failure in Spanish emergency departments). Renal dysfunction was defined by an estimated glomerular filtration rate <60 ml/min/m2, anaemia by haemoglobin values <12/<13 g/dl in women/men, and cardiorenal anaemia syndrome as the presence of both. Comparisons were made according to cardiorenal-anaemia syndrome positive (CRAS+) with respect to the rest of patients (CRAS-) and according the presence of renal dysfunction (RD+) and anaemia (A+), (alone, RD+/A-, RD-/A+) or in combination (RD+/A+; i.e. CRAS+) with respect to patients without renal dysfunction and anaemia (RD-/A-). The primary outcome was 30-day mortality, and the secondary outcomes were need for admission, prolonged hospitalisation (>10 days), in-hospital mortality during the index event, and reconsultation and the combination of 30-day post-discharge reconsultation/death. These short-term outcomes were compared and adjusted for differences among groups. RESULTS: Of the 13,307 patients analysed, CRAS+ (36.4%) was associated with older age, multiple comorbidities, chronic use of loop diuretics, oedemas and hypotension. The 30-day mortality in CRAS+ was greater than in CRAS- (hazard ratio = 1.46, 95% confidence interval = 1.26-1.68) and RD-/A- (hazard ratio = 1.83, 95% confidence interval = 1.46-2.28) control groups. The mortality level was also higher in RD+/A- (hazard ratio = 1.40, 95% confidence interval = 1.10-1.78) and higher, but not statistically significant, in RD-/A+ (hazard ratio = 1.28, 95% confidence interval = 0.99-1.63) with respect to RD-/A-. All of the secondary outcomes, when related to CRAS- and RD-/A- control groups, were worse for CRAS+ and to a lesser extent, RD+/A-, being more rarely observed in RD-/A+. CONCLUSIONS: Cardiorenal anaemia syndrome in acute heart failure is related to greater mortality and worse short-term outcomes, and the impact of renal dysfunction and anaemia seems to be additive.


Asunto(s)
Anemia/complicaciones , Síndrome Cardiorrenal/complicaciones , Servicio de Urgencia en Hospital/estadística & datos numéricos , Insuficiencia Cardíaca/complicaciones , Sistema de Registros , Enfermedad Aguda , Anciano , Anciano de 80 o más Años , Síndrome Cardiorrenal/fisiopatología , Causas de Muerte/tendencias , Femenino , Estudios de Seguimiento , Tasa de Filtración Glomerular , Insuficiencia Cardíaca/mortalidad , Humanos , Masculino , Pronóstico , Estudios Prospectivos , España/epidemiología , Tasa de Supervivencia/tendencias
20.
Clin Res Cardiol ; 109(1): 34-45, 2020 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-31037410

RESUMEN

OBJECTIVE: To investigate whether patients with an acute heart failure (AHF) episode triggered by infection present different outcomes compared to patients with no trigger and the effects of early antibiotic administration (EAA) and hospitalisation. METHODS: Two groups were made according to the AHF trigger: infection (G1) or none identified (G2). The primary outcome was 13-week (91-days) all-cause mortality, and secondary outcomes were 13-week post-discharge mortality, readmission or combined endpoint. Comparisons are presented as unadjusted and adjusted (MEESSI risk score) hazard ratios (uHR/aHR) for G1 compared to G2 patients, also estimated by weeks. Stratified analysis by EAA (provided/not provided) and patient disposition (discharged/hospitalised) was performed. RESULTS: We included 6727 patients (G1 = 3973; G2 = 2754). The 13-week mortality uHR was 1.11 (0.99-1.25; p = 0.06; with significant increases in the first 3 weeks), and the aHR was 0.91 (0.81-1.02; p = 0.11). There were no differences in unadjusted secondary post-discharge outcomes; however, G1 outcomes significantly improved after adjustment: aHR 0.83 (0.71-0.96; p = 0.01) for mortality, 0.92 (0.84-0.99; p = 0.04) for readmission, and 0.92 (0.85-0.99; p = 0.04) for the combined endpoint. We found a differentiated effect of hospitalisation (p < 0.05 for interaction; better post-discharge readmission and combined outcomes in G1), and a trend (p = 0.06) to lower mortality in G1 patients with EAA. Additionally, there were some differences between groups in baseline and acute episode characteristics. CONCLUSION: AHF triggered by infection is not associated with a higher mid-term mortality and has better post-discharge outcomes; however, the first 3 weeks are an extremely vulnerable period. Since hospitalisation could have a role in limiting adverse post-discharge events, and EAA in reducing mortality, these relationships should be prospectively explored in further studies.


Asunto(s)
Antibacterianos/administración & dosificación , Insuficiencia Cardíaca/etiología , Hospitalización/estadística & datos numéricos , Infecciones/complicaciones , Enfermedad Aguda , Anciano , Anciano de 80 o más Años , Femenino , Insuficiencia Cardíaca/mortalidad , Humanos , Infecciones/tratamiento farmacológico , Masculino , Alta del Paciente , Readmisión del Paciente/estadística & datos numéricos , Sistema de Registros , Factores de Tiempo
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