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1.
Br J Haematol ; 204(5): 1977-1985, 2024 May.
Artículo en Inglés | MEDLINE | ID: mdl-38566598

RESUMEN

Immune thrombocytopenia (ITP) is characterized by low platelet counts (PLTs) and an increased risk of bleeding. Fostamatinib, a spleen tyrosine kinase inhibitor, has been approved as a second-line treatment for ITP. Real-world data on fostamatinib are lacking. This observational, retrospective, multicentre study, conducted in the Andalusia region of Spain, evaluated 44 adult primary ITP patients (47.7% female; median age 58 years; newly diagnosed ITP 6.8%; persistent 13.6%; chronic 79.5%; median four prior treatments) after ≥ 4 weeks of fostamatinib therapy. The median PLT at the initiation of fostamatinib was 15 × 109/L. Common reasons for starting fostamatinib were refractoriness or intolerance to prior therapy, oral medication preference, history of thrombosis and cardiovascular risk. Dosing was individualized based on efficacy and tolerance. After 2 weeks, global response rate was 56.8% (response and complete response). Response rates were 70.5%, 62.5% and 64% at 4 weeks, 12 weeks and at the end of the study respectively. Adverse events were mild, and no patients discontinued as a result. This real-world study demonstrated a response rate similar to fostamatinib as seen in the pivotal clinical trials while including newly diagnosed patients and allowing for individualized dosing.


Asunto(s)
Aminopiridinas , Morfolinas , Púrpura Trombocitopénica Idiopática , Piridinas , Humanos , Persona de Mediana Edad , Femenino , Púrpura Trombocitopénica Idiopática/tratamiento farmacológico , Masculino , España , Aminopiridinas/uso terapéutico , Aminopiridinas/efectos adversos , Anciano , Morfolinas/uso terapéutico , Morfolinas/efectos adversos , Estudios Retrospectivos , Adulto , Piridinas/uso terapéutico , Piridinas/efectos adversos , Oxazinas/uso terapéutico , Oxazinas/efectos adversos , Pirimidinas/uso terapéutico , Pirimidinas/efectos adversos , Resultado del Tratamiento , Inhibidores de Proteínas Quinasas/uso terapéutico , Inhibidores de Proteínas Quinasas/efectos adversos , Anciano de 80 o más Años
2.
Eur J Pediatr ; 182(7): 3057-3062, 2023 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-37140702

RESUMEN

Studies have shown increased invasive Group A Streptococcus (GAS) disease, including bloodstream infections (GAS-BSI). However, the epidemiological data of GAS-BSI are limited in children. We aimed to describe GAS-BSI in children in Madrid, over 13 years (2005-2017). Multicenter retrospective cohort study from 16 hospitals from Madrid, Spain. Epidemiology, symptomatology, laboratory, treatment, and outcome of GAS-BSI in children ≤ 16 years were analyzed. 109 cases of GAS-BSI were included, with incidence rate of 4.3 episodes/100,000 children attended at the emergency department/year. We compared incidence between two periods (P1: 2005-June 2011 vs P2: July 2011-2017) and observed a non-significant increase along the study period (annual percentage change: + 6.0% [95%CI: -2.7, + 15.4]; p = 0.163). Median age was 24.1 months (IQR: 14.0-53.7), peaking during the first four years of life (89/109 cases; 81.6%). Primary BSI (46.8%), skin and soft tissue (21.1%), and osteoarticular infections (18.3%) were the most common syndromes. We compared children with primary BSI with those with a known source and observed that the former had shorter hospital stay (7 vs. 13 days; p = 0.003) and received intravenous antibiotics less frequently (72.5% vs. 94.8%; p = 0.001) and for shorter duration of total antibiotic therapy (10 vs. 21 days; p = 0.001). 22% of cases required PICU admission. Factors associated with severity were respiratory distress, pneumonia, thrombocytopenia, and surgery, but in multivariate analysis, only respiratory distress remained significant (adjusted OR:9.23 [95%CI: 2.16-29.41]). Two children (1.8%) died.   Conclusion: We observed an increasing, although non-significant, trend of GAS-BSI incidence within the study. Younger children were more frequently involved, and primary BSI was the most common and less severe syndrome. PICU admission was frequent, being respiratory distress the main risk factor. What is known: • In recent decades, several reports have shown a worldwide increase in the incidence of invasive Group A streptococcal disease (GAS), including bloodstream infection (BSI). Recently, there have been a few reports showing an increase in severity as well. • There needs to be more information on the epidemiology in children since most studies predominantly include adults. What is new: • This study, carried out in children with GAS-BSI in Madrid, shows that GAS-BSI affects mostly younger children, with a broad spectrum of manifestations, needing PICU admission frequently. Respiratory distress was the leading risk factor for severity, whereas primary BSI seemed to be less severe. • We observed an increasing, although non-significant, trend of GAS-BSI incidence in recent years (2005-2017).


Asunto(s)
Bacteriemia , Síndrome de Dificultad Respiratoria , Sepsis , Adulto , Humanos , Niño , Preescolar , Streptococcus pyogenes , Estudios Retrospectivos , España/epidemiología , Factores de Riesgo , Bacteriemia/diagnóstico , Bacteriemia/epidemiología
3.
Nurs Open ; 10(6): 4101-4110, 2023 06.
Artículo en Inglés | MEDLINE | ID: mdl-36719704

RESUMEN

AIM: To evaluate the efficacy of advanced nurse triage based on the quality of care outcomes of patients attending the Emergency Department of a high-complexity hospital. To analyse the concept of advanced triage and the essential elements of the construct. DESIGN: Mixed longitudinal study, divided into 4 steps; which will include an initial qualitative step, two observational studies and finally, a quasi-experimental study. CLINICAL TRIAL REGISTRATION NUMBER: NCT05230108. METHODS: Step 1 will consist of a concept analysis. Step 2 will include a mapping of advanced practice protocol terminologies. Step 3 will analyse the opinion of health professionals on advanced triage. In step 4: in the retrospective phase (n = 1095), sociodemographic and clinical variables and quality indicators such as waiting time will be analysed. After that, in the prospective phase (n = 547), advanced triage will be implemented and the two cohorts will be compared. The whole study will be carried out from January 2022 to January 2024. DISCUSSION: Patients classified as low complexity at triage are more vulnerable to emergency department overcrowding. The implementation of advanced triage would make it possible to respond to patient needs by offering equitable and quality healthcare, facilitating accessibility, safety and humanization of the emergency department.


Asunto(s)
Hospitales Públicos , Triaje , Humanos , Estudios Longitudinales , Estudios Prospectivos , Estudios Retrospectivos , Servicio de Urgencia en Hospital
4.
Lancet Neurol ; 22(2): 137-146, 2023 02.
Artículo en Inglés | MEDLINE | ID: mdl-36681446

RESUMEN

BACKGROUND: Pilot clinical trials have shown the safety of intra-arterial bone marrow mononuclear cells (BMMNCs) in stroke. However, the efficacy of different doses of intra-arterial BMMNCs in patients with acute stroke has not been tested in a randomised clinical trial. We aimed to show safety and efficacy of two different doses of autologous intra-arterial BMMNC transplantation in patients with acute stroke. METHODS: The IBIS trial was a multicentre phase 2, randomised, controlled, investigator-initiated, assessor-blinded, clinical trial, in four stroke centres in Spain. We included patients (aged 18-80 years) with a non-lacunar, middle cerebral artery ischaemic stroke within 1-7 days from stroke onset and with a National Institutes of Health Stroke Scale score of 6-20. We randomly assigned patients (2:1:1) with a computer-generated randomisation sequence to standard of care (control group) or intra-arterial injection of autologous BMMNCs at one of two different doses (2 × 106 BMMNCs/kg or 5 × 106 BMMNCs/kg). The primary efficacy outcome was the proportion of patients with modified Rankin Scale scores of 0-2 at 180 days in the intention-to-treat population, comparing each BMMNC dose group and the pooled BMMNC group versus the control group. The primary safety endpoint was the proportion of serious adverse events. This trial was registered at ClinicalTrials.gov, NCT02178657 and is completed. FINDINGS: Between April 1, 2015, and May 20, 2021, we assessed 114 patients for eligibility. We randomly assigned 77 (68%) patients: 38 (49%) to the control group, 20 (26%) to the low-dose BMMNC group, and 19 (25%) the high-dose BMMNC group. The mean age of participants was 62·4 years (SD 12·7), 46 (60%) were men, 31 (40%) were women, all were White, and 63 (82%) received thrombectomy. The median NIHSS score before randomisation was 12 (IQR 9-15), with intra-arterial BMMNC injection done a median of 6 days (4-7) after stroke onset. The primary efficacy outcome occurred in 14 (39%) patients in the control group versus ten (50%) in the low-dose group (adjusted odds ratio 2·08 [95% CI 0·55-7·85]; p=0·28), eight (44%) in the high-dose group (1·89 [0·52-6·96]; p=0·33), and 18 (47%) in the pooled BMMNC group (2·22 [0·72-6·85]; p=0·16). We found no differences in the proportion of patients who had adverse events or dose-related events, but two patients had a groin haematoma after cell injection in the low-dose BMMNC group. INTERPRETATION: Intra-arterial BMMNCs were safe in patients with acute ischaemic stroke, but we found no significant improvement at 180 days on the mRS. Further clinical trials are warranted to investigate whether improvements might be possible at different timepoints. FUNDING: Instituto de Salud Carlos III co-funded by the European Regional Development Fund/European Social Fund, Mutua Madrileña, and the Regional Ministry of Health of Andalusia.


Asunto(s)
Isquemia Encefálica , Accidente Cerebrovascular Isquémico , Accidente Cerebrovascular , Masculino , Humanos , Femenino , Persona de Mediana Edad , Accidente Cerebrovascular/tratamiento farmacológico , Isquemia Encefálica/tratamiento farmacológico , España , Médula Ósea , Resultado del Tratamiento , Trasplante de Células
6.
J Clin Pathol ; 76(2): 116-120, 2023 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-34518360

RESUMEN

AIMS: Hyponatraemia is the most common body fluid disorders but often goes unnoticed. Our laboratory incorporated a standardised procedure to help clinicians detect moderate/severe hyponatraemia. The study aims were to evaluate the outcomes on patient care and clinicians' satisfaction. METHODS: The study, observational and retrospective, included 1839 cases, adult and paediatric patients, with sodium concentration <130 mmol/L. The procedure consisted of interpretative comments in the emergency and core laboratories report and the point-of-care testing blood gas network report. We evaluated hyponatraemia length in two equal periods: before and after the implementation. We conducted a survey addressed to the staff of the clinical settings involved to know their satisfaction. RESULTS: The median hyponatraemia length decreased significantly from 4.95 hours (2.08-16.57) in the first period to 2.17 hours (1.06-5.39) in the second period. The lack of hyponatraemia patients follow-up was significantly less after the procedure implementation. The survey was answered by 92 (60 senior specialists and 32 residents) out of 110 clinicians surveyed. Ninety of them (98%) answered positively. CONCLUSIONS: We have demonstrated the reduction in the time for diagnosing and management by physicians, the higher uniformity in the time required to solve hyponatraemia episodes following our laboratory procedure and the clinicians' satisfaction.


Asunto(s)
Hiponatremia , Adulto , Niño , Humanos , Hiponatremia/diagnóstico , Hiponatremia/terapia , Laboratorios , Estudios Retrospectivos , Sodio
9.
Med. segur. trab ; 68(269): 231-247, oct-dic. 2022. tab
Artículo en Español | IBECS | ID: ibc-223519

RESUMEN

Introducción: Existe evidencia del aumento progresivo de las enfermedades pulmonares crónicas en población trabajadora asociado al uso, cada vez más frecuente, de desinfectantes; pero se dispone de escasa información científica sobre sus efectos adversos en trabajadores con patología respiratoria de base. El objetivo de esta investi-gación fue conocer la evidencia científica existente sobre los efectos adversos derivados del uso de desinfectantes en trabajadores con neumopatía obstructiva crónica.Métodos: Análisis crítico de artículos mediante revisión sistemática en MEDLINE (vía PubMed), EMBASE, Cochrane Library, Scopus, Web of Science, LILACS y MEDES. La búsqueda realizada se hizo desde la primera fecha disponible hasta el 20 de diciembre de 2022. Se seleccionaron, por nivel de evidencia y criterios de inclusión y exclusión, un total de 10 artículos.Resultados: En los 10 estudios seleccionados, la exposición fue a los desinfectantes. Del total de artículos, se no-tificó la aparición de efectos adversos en 9 y un estudio no mostró relación del empeoramiento de su enfermedad respiratoria crónica con la exposición.Conclusiones: Los resultados mostraron una asociación no concluyente entre la exposición a desinfectantes y la aparición de diferentes daños para la salud en trabajadores con enfermedad pulmonar obstructiva crónica (EPOC) en diversos ámbitos laborales. Por lo tanto, son necesarios más estudios, diferenciando entre los distintos desinfec-tantes utilizados y según las características de cada puesto de trabajo (AU)


Introduction: There is evidence of a progressive increase in chronic lung diseases in the working population asso-ciated with the increasingly frequent use of disinfectants, but there is limited scientific information on their adverse effects on workers with underlying respiratory pathology. The objective of this research was to review and under-stand the existing scientific evidence on the adverse effects of disinfectant use in workers with chronic obstructive pulmonary disease.Methods: Critical analysis of articles through a systematic review in MEDLINE (via PubMed), EMBASE, Cochrane Li-brary, Scopus, Web of Science, LILACS, and MEDES. The search was conducted from the earliest available date until December 20, 2022. A total of 10 articles were selected based on the level of evidence and inclusion and exclusion criteria.Results: In the 10 selected studies, exposure was to disinfectants. Of the total articles, adverse effects were reported in 9, and one study showed no relationship between the worsening of their chronic respiratory disease and expo-sure.Conclusions: The results showed inconclusive association between exposure to disinfectants and the appearance of different health damages in workers with chronic obstructive pulmonary disease in different work settings. Therefore, it is necessary to conduct more studies that differentiate the different disinfectants used in isolation and according to the characteristics of each job position (AU)


Asunto(s)
Humanos , Enfermedad Pulmonar Obstructiva Crónica/inducido químicamente , Enfermedades Profesionales/inducido químicamente , Neumonía/inducido químicamente , Desinfectantes/efectos adversos
10.
Sci Rep ; 12(1): 8348, 2022 05 19.
Artículo en Inglés | MEDLINE | ID: mdl-35589917

RESUMEN

Donor derived regulatory T lymphocytes and the JAK1/2 kinase inhibitor ruxolitinib are currently being evaluated as therapeutic options in the treatment of chronic graft versus host disease (cGvHD). In this work, we aimed to determine if the combined use of both agents can exert a synergistic effect in the treatment of GvHD. For this purpose, we studied the effect of this combination both in vitro and in a GvHD mouse model. Our results show that ruxolitinib favors the ratio of thymic regulatory T cells to conventional T cells in culture, without affecting the suppressive capacity of these Treg. The combination of ruxolitinib with Treg showed a higher efficacy as compared to each single treatment alone in our GvHD mouse model in terms of GvHD incidence, severity and survival without hampering graft versus leukemia effect. This beneficial effect correlated with the detection in the bone marrow of recipient mice of the infused donor allogeneic Treg after the adoptive transfer.


Asunto(s)
Enfermedad Injerto contra Huésped , Animales , Modelos Animales de Enfermedad , Enfermedad Injerto contra Huésped/tratamiento farmacológico , Ratones , Nitrilos , Pirazoles , Pirimidinas , Linfocitos T Reguladores/trasplante
11.
Rev Esp Patol ; 55(1): 41-45, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-34980440

RESUMEN

Coronavirus disease-2019 (COVID-19) is a global public health emergency with numerous clinical facets, including acute kidney injury and acute cerebrovascular disease. Further knowledge of its various pathogenic mechanisms is essential, including coagulation disorders. Monoclonal gammopathy is characterized by the overproduction of a monoclonal immunoglobulin caused by clonal proliferation. Using a postmortem study of ultrasound-guided percutaneous core biopsies, the aim of this report is to present our observations on the severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) infection pathology associated with monoclonal gammopathy. The clinical presentation was acute renal failure. Pathological findings revealed kappa light chain cast nephropathy. SARS-CoV-2 immunohistochemistry was positive in some renal tubular cells. Another notable finding was the presence of a high density of alveolar megakaryocytes, which probably explained the final outcome (acute cerebrovascular disease). Immunohistochemical study for SARS-CoV-2 does not verify the pathogenic effect of the virus and thus its contribution to the acute kidney injury.


Asunto(s)
COVID-19 , Paraproteinemias , Autopsia , Humanos , SARS-CoV-2 , Ultrasonografía Intervencional
12.
Rev. esp. patol ; 55(1): 41-45, ene-mar 2022. ilus
Artículo en Inglés | IBECS | ID: ibc-206770

RESUMEN

Coronavirus disease-2019 (COVID-19) is a global public health emergency with numerous clinical facets, including acute kidney injury and acute cerebrovascular disease. Further knowledge of its various pathogenic mechanisms is essential, including coagulation disorders. Monoclonal gammopathy is characterized by the overproduction of a monoclonal immunoglobulin caused by clonal proliferation. Using a postmortem study of ultrasound-guided percutaneous core biopsies, the aim of this report is to present our observations on the severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) infection pathology associated with monoclonal gammopathy. The clinical presentation was acute renal failure. Pathological findings revealed kappa light chain cast nephropathy. SARS-CoV-2 immunohistochemistry was positive in some renal tubular cells. Another notable finding was the presence of a high density of alveolar megakaryocytes, which probably explained the final outcome (acute cerebrovascular disease). Immunohistochemical study for SARS-CoV-2 does not verify the pathogenic effect of the virus and thus its contribution to the acute kidney injury.(AU)


La enfermedad por coronavirus de 2019 (COVID-19) es una emergencia sanitaria pública global con numerosas facetas clínicas que incluyen enfermedad renal aguda y enfermedad cerebrovascular aguda. Es necesario un conocimiento adicional de su mecanismo patogénico. Los trastornos de coagulación están claramente incluidos en dichos mecanismos. La gammapatía monoclonal se caracteriza por la sobreproducción de inmunoglobulina monoclonal causada por proliferación clonal. Utilizando un estudio postmortem de biopsias percutáneas ecoguiadas, el objetivo de este informe es presentar nuestras observaciones sobre la patología del síndrome respiratorio agudo severo por infección de coronavirus 2 (SARS-CoV-2) con gammapatía monoclonal. La presentación clínica fue insuficiencia renal aguda. Los hallazgos patológicos revelaron nefropatía por cilindros de cadenas ligeras kappa. La inmunohistoquímica de SARS-CoV-2 fue positiva en ciertas células tubulares renales. La presencia de megacariocitos alveolares (alta densidad) fue un hallazgo notable, que explica probablemente el resultado final del paciente (enfermedad cerebrovascular aguda). El estudio inmunohistoquímico frente a SARS-CoV-2 no verifica el efecto patogénico del virus y, por tanto, su contribución a la nefropatía aguda.(AU)


Asunto(s)
Humanos , Coronavirus , Autopsia , Megacariocitos , Paraproteinemias , Trombosis , Insuficiencia Renal , Trastornos Cerebrovasculares
13.
Hemodial Int ; 25(2): 205-213, 2021 04.
Artículo en Inglés | MEDLINE | ID: mdl-33225565

RESUMEN

INTRODUCTION: COVID-19 is a very high transmission disease with a variable prognosis in the general population. Patients in hemodialysis therapy are particularly vulnerable to developing an infectious disease, but the incidence and prognosis of hemodialysis patients with COVID-19 is still unclear. The main objective is to describe the experience of our dialysis unit in preventing and controlling the spread of SARS-CoV-2 infection. METHODS: Preventive structural and organizational changes were applied to all patients and health care personnel in order to limit the risk of local transmission of SARS-CoV-2 infection. FINDINGS: The Nephrology department at Sant Joan Despí Moises Broggi Hospital-Consorci Sanitari Integral is a reference for two satellite hemodialysis centers caring for 156 patients. We combine our own hemodialysis maintenance program for 87 patients with hospitalized patients from peripheral hemodialysis centers. In this area, the reported incident rate of COVID-19 in these peripherical hemodialysis centers was 9.5% to 19.9% and the death rate 25% to 30.5%. In our hemodialysis program, the incidence rate was 5.7%. Three out of five required hospitalization (60%) and nobody died. DISCUSSION: Although the risk of local transmission of the disease was very high due to the increase in hemodialysis patients from peripheral centers admitted to hospital, the incidence rate of COVID-19 was very low in our own hemodialysis patients. We believe that the structural and organizational changes adopted early on and the diagnosis algorithm played an important role in minimizing the spread of the disease.


Asunto(s)
COVID-19/epidemiología , Diálisis Renal/métodos , Anciano , Anciano de 80 o más Años , COVID-19/transmisión , Transmisión de Enfermedad Infecciosa/prevención & control , Femenino , Hospitales , Humanos , Fallo Renal Crónico/terapia , Fallo Renal Crónico/virología , Masculino , Persona de Mediana Edad , Pandemias , SARS-CoV-2/aislamiento & purificación
14.
In. Ponce Zerquera, Francisco. Fundamentos de medicina legal. La Habana, Editorial Ciencias Médicas, 2021. , ilus.
Monografía en Español | CUMED | ID: cum-77789
16.
J Matern Fetal Neonatal Med ; 33(8): 1302-1306, 2020 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-30153763

RESUMEN

Purpose: To assess the validity of the online WINROP algorithm in two Spanish populations of premature infants.Materials and methods: The study population consisted of 502 premature infants born in the San Cecilio University Hospital of Granada and the Regional University Hospital of Málaga in the years 2000-2015. The WINROP algorithm was used to determine an alarm threshold for retinopathy of prematurity (ROP). The results were compared with those obtained from serial examinations of premature infants.Results: The global WINROP algorithm showed a sensitivity of 62%, specificity of 74%, positive predictive value (PPV) of 59%, and negative predictive value (NPV) of 77%. This algorithm showed a greater sensitivity (76%) to identify severe ROP.Conclusions: The WINROP screening algorithm in this study showed moderate sensitivity, so many ROP cases amenable to treatment were not detected. Other criteria should be added to the algorithm to increase the sensitivity.


Asunto(s)
Algoritmos , Tamizaje Neonatal/métodos , Retinopatía de la Prematuridad/diagnóstico , Femenino , Edad Gestacional , Humanos , Recién Nacido , Recien Nacido Prematuro , Recién Nacido de muy Bajo Peso , Tamizaje Neonatal/normas , Valor Predictivo de las Pruebas , Embarazo , Estudios Retrospectivos , Medición de Riesgo
17.
Bone Marrow Transplant ; 55(3): 641-648, 2020 03.
Artículo en Inglés | MEDLINE | ID: mdl-31700138

RESUMEN

Graft-versus-host disease is the main cause of morbidity and mortality after allogeneic hematopoietic stem cell transplantation. First-line treatment is based on the use of high doses of corticosteroids. Unfortunately, second-line treatment for both acute and chronic graft-versus-host disease, remains a challenge. Ruxolitinib has been shown as an effective and safe treatment option for these patients. Seventy-nine patients received ruxolitinib and were evaluated in this retrospective and multicenter study. Twenty-three patients received ruxolitinib for refractory acute graft-versus-host disease after a median of 3 (range 1-5) previous lines of therapy. Overall response rate was 69.5% (16/23) which was obtained after a median of 2 weeks of treatment, and 21.7% (5/23) reached complete remission. Fifty-six patients were evaluated for refractory chronic graft-versus-host disease. The median number of previous lines of therapy was 3 (range 1-10). Overall response rate was 57.1% (32/56) with 3.5% (2/56) obtaining complete remission after a median of 4 weeks. Tapering of corticosteroids was possible in both acute (17/23, 73%) and chronic graft-versus-host disease (32/56, 57.1%) groups. Overall survival was 47% (CI: 23-67%) at 6 months for patients with aGVHD (62 vs 28% in responders vs non-responders) and 81% (CI: 63-89%) at 1 year for patients with cGVHD (83 vs 76% in responders vs non-responders). Ruxolitinib in the real life setting is an effective and safe treatment option for GVHD, with an ORR of 69.5% and 57.1% for refractory acute and chronic graft-versus-host disease, respectively, in heavily pretreated patients.


Asunto(s)
Enfermedad Injerto contra Huésped , Trasplante de Células Madre Hematopoyéticas , Enfermedad Aguda , Enfermedad Crónica , Enfermedad Injerto contra Huésped/tratamiento farmacológico , Humanos , Nitrilos , Pirazoles/uso terapéutico , Pirimidinas , Estudios Retrospectivos
18.
J Investig Med ; 68(3): 807-810, 2020 03.
Artículo en Inglés | MEDLINE | ID: mdl-31852749

RESUMEN

Previous studies have shown the potential of microRNAs (miRNA) in the pathological process of stroke and functional recovery. Bone marrow mononuclear cell (BM-MNC) transplantation improves recovery in experimental models of ischemic stroke that might be related with miRNA modifications. However, its effect on circulating miRNA has not been described in patients with stroke. We aimed to evaluate the circulating levels of miRNAs after autologous BM-MNC transplantation in patients with stroke. We investigate the pattern of miRNA-133b and miRNA-34a expression in patients with ischemic stroke included in a multicenter randomized controlled phase IIb trial (http://www.clinicaltrials.gov; unique identifier: NCT02178657). Patients were randomized to 2 different doses of autologous intra-arterial BM-MNC injection (2×106/kg or 5×106/kg) or control group within the first 7 days after stroke onset. We evaluate plasma concentration of miRNA-113b and miRNA-34a at inclusion and 4, 7, and 90 days after treatment. Thirteen cases (8 with 2×106/kg BM-MNC dose and 5 with 5×106/kg dose) and 11 controls (BM-MNC non-treated) were consecutively included. Mean age was 64.1±12.3 with a mean National Institutes of Health Stroke Scale score at inclusion of 14.5. Basal levels of miRNA were similar in both groups. miR-34a-5p and miR-133b showed different expression patterns. There was a significant dose-dependent increase of miRNA-34a levels 4 days after BM-MNC injection (fold change 3.7, p<0.001), whereas miRNA-133b showed a significant increase in the low-dose BM-MNC group at 90 days. Intra-arterial BM-MNC transplantation in patients with ischemic stroke seems to modulate early circulating miRNA-34a levels, which have been related to precursor cell migration in stroke and smaller infarct volumes.


Asunto(s)
Trasplante de Médula Ósea , MicroARN Circulante/sangre , Accidente Cerebrovascular Isquémico/terapia , Leucocitos Mononucleares/trasplante , Anciano , Femenino , Humanos , Inyecciones Intraarteriales , Masculino , Persona de Mediana Edad , Trasplante Autólogo
19.
Ann Hematol ; 98(9): 2151-2162, 2019 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-31312927

RESUMEN

Somatic mutations in patients with myelodysplastic syndromes (MDS) undergoing allogeneic hematopoietic stem cell transplantation (HSTC) are associated with adverse outcome, but the role of chronic graft-versus-host disease (cGVHD) in this subset of patients remains unknown. We analyzed bone marrow samples from 115 patients with MDS collected prior to HSCT using next-generation sequencing. Seventy-one patients (61%) had at least one mutated gene. We found that patients with a higher number of mutated genes (more than 2) had a worse outcome (2 years overall survival [OS] 54.8% vs. 31.1%, p = 0.035). The only two significant variables in the multivariate analysis for OS were TET2 mutations (p = 0.046) and the development of cGVHD, considered as a time-dependent variable (p < 0.001), correlated with a worse and a better outcome, respectively. TP53 mutations also demonstrated impact on the cumulative incidence of relapse (CIR) (1 year CIR 47.1% vs. 9.8%, p = 0.006) and were related with complex karyotype (p = 0.003). cGVHD improved the outcome even among patients with more than 2 mutated genes (1-year OS 88.9% at 1 year vs. 31.3%, p = 0.02) and patients with TP53 mutations (1-year CIR 20% vs. 42.9%, p = 0.553). These results confirm that cGVHD could ameliorate the adverse impact of somatic mutations in patients with MDS with HSCT.


Asunto(s)
Aberraciones Cromosómicas , Enfermedad Injerto contra Huésped/genética , Trasplante de Células Madre Hematopoyéticas , Síndromes Mielodisplásicos/genética , Aloinjertos , Médula Ósea/patología , Enfermedad Crónica , Femenino , Enfermedad Injerto contra Huésped/patología , Secuenciación de Nucleótidos de Alto Rendimiento , Humanos , Incidencia , Masculino , Persona de Mediana Edad , Síndromes Mielodisplásicos/patología , Síndromes Mielodisplásicos/terapia , Estudios Retrospectivos
20.
Eur J Haematol ; 102(6): 465-471, 2019 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-30828868

RESUMEN

Post-transplant lymphoproliferative disorder (PTLD) is an infrequent complication of allogeneic stem cell transplant (allo-SCT). AIMS: To estimate the frequency and management of PTLD in Spain and to identify prognostic factors influencing outcomes. METHODS: Multicenter, retrospective analysis of allo-SCT performed in 14 transplant units over a 15-year period. RESULTS: 102 PTLD were diagnosed among 12 641 allo-SCT, leading to an estimated frequency of 0.8%. PTLD was diagnosed at a median of 106 days after SCT. Eighty-seven cases (85%) were diagnosed between 2007 and 2013. At diagnosis, 22% and 17% of the patients had gastrointestinal tract and CNS involvement. Eighty-seven (85%) received rituximab treatment, alone or in combination with immunosuppression reduction, with an ORR of 50.6%. With a median follow-up for survivors of 58 months, the 2-year overall survival (OS) was 33% and the PTLD-related mortality 45%. Age ≥ 40 years, malignant underlying disease, non-response to rituximab, and severe thrombocytopenia or lymphocytopenia at PTLD diagnosis were associated with worse overall survival. CONCLUSIONS: Only a small proportion of allografted patients were diagnosed a PTLD. Its clinical course was highly aggressive, and prognosis poor, especially in those failing rituximab. The prognostic impact found of the platelet, and lymphocyte count at diagnosis requires further confirmation.


Asunto(s)
Trasplante de Células Madre Hematopoyéticas/efectos adversos , Trastornos Linfoproliferativos/epidemiología , Trastornos Linfoproliferativos/etiología , Adolescente , Adulto , Protocolos de Quimioterapia Combinada Antineoplásica , Biomarcadores , Niño , Preescolar , Terapia Combinada/métodos , Ciclofosfamida , Doxorrubicina , Infecciones por Virus de Epstein-Barr/complicaciones , Infecciones por Virus de Epstein-Barr/virología , Femenino , Humanos , Lactante , Estimación de Kaplan-Meier , Trastornos Linfoproliferativos/diagnóstico , Trastornos Linfoproliferativos/mortalidad , Masculino , Persona de Mediana Edad , Estadificación de Neoplasias , Evaluación del Resultado de la Atención al Paciente , Prednisona , Pronóstico , Modelos de Riesgos Proporcionales , Estudios Retrospectivos , España/epidemiología , Trasplante Homólogo , Vincristina , Adulto Joven
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