Time filter

Source Type

Doñinos de Salamanca, Spain

Hernandez-Gonzalez A.,IRNASA | Santivanez S.,Instituto Peruano Of Parasitologia Clinica Y Experimental Inppace | Garcia H.H.,Instituto Peruano Of Parasitologia Clinica Y Experimental Inppace | Rodriguez S.,Instituto Peruano Of Parasitologia Clinica Y Experimental Inppace | And 4 more authors.
PLoS Neglected Tropical Diseases | Year: 2012

A standardized test for the serodiagnosis of human cystic echinococcosis (CE) is still needed, because of the low specificity and sensitivity of the currently available commercial tools and the lack of proper evaluation of the existing recombinant antigens. In a previous work, we defined the new ELISA-B2t diagnostic tool for the detection of specific IgGs in CE patients, which showed high sensitivity and specificity, and was useful in monitoring the clinical evolution of surgically treated CE patients. Nevertheless, this recombinant antigen gave rise to false-negative results in a percentage of CE patients. Therefore, in an attempt to improve its sensitivity, we constructed B2t-derived recombinant antigens with two, four and eight tandem repeat of B2t units, and tested them by ELISA on serum samples of CE patients and patients with related parasites. The best diagnostic values were obtained with the two tandem repeat 2B2t antigen. The influence of several clinical variables on the performance of the tests was also evaluated. Finally, the diagnostic performance of the 2B2t-ELISA was compared with that of an indirect haemagglutination commercial test. The 2B2t recombinant antigen performed better than the HF and B2t antigens, and the IHA commercial kit. Therefore, this new 2B2t-ELISA is a promising candidate test for the serodiagnosis of CE in clinical settings. © 2012 Hernández-González et al.

Martinez N.,Hospital Marques de Valdecilla IFIMAV | Almaraz C.,Hospital Marques de Valdecilla IFIMAV | Vaque J.P.,Hospital Marques de Valdecilla IFIMAV | Varela I.,Institute Biomedicina Y Biotecnologia Of Cantabria | And 24 more authors.
Leukemia | Year: 2014

Splenic marginal zone lymphoma (SMZL) is a B-cell neoplasm whose molecular pathogenesis remains fundamentally unexplained, requiring more precise diagnostic markers. Previous molecular studies have revealed 7q loss and mutations of nuclear factor κB (NF-κB), B-cell receptor (BCR) and Notch signalling genes. We performed whole-exome sequencing in a series of SMZL cases. Results confirmed that SMZL is an entity distinct from other low-grade B-cell lymphomas, and identified mutations in multiple genes involved in marginal zone development, and others involved in NF-κB, BCR, chromatin remodelling and the cytoskeleton. © 2014 Macmillan Publishers Limited.

Serra-Aracil X.,Hospital Universitario Parc Tauli Of Sabadell | Navarro Soto S.,Hospital Universitario Parc Tauli Of Sabadell | Hermoso Bosch J.,Hospital Universitario Parc Tauli Of Sabadell | Miguelena J.M.,Hospital Miguel Servet | And 9 more authors.
Cirugia Espanola | Year: 2012

Introduction: There are no quantified data on the real activity carried out by residents during the 5 years of training in the specialty of general and digestive surgery (GGS) in Spain. There are also limited data on programs in other surgical specialities, and in other countries. The aim of the study is to estimate the mean overall surgical activity by specific skill areas and by the level of complexity of the Spanish program in the specialty of GGS. Patients and method: A prospective, observational, multicentre study was performed on the activity of GGS residents in Spain using the Resident Computerised Logbook of the Spanish Surgeons Association (LIR-AEC). Each of the residents registered their own activity supervised by their tutor. The sample period was 6 months. The medians of the annual activity and the period of residency were calculated from the results. Results: Surgical activity: during the residency, it was estimated that that they attended 1,325 operations, 654 (49%) as lead surgeon. Health care activity: the mean number of times on-call was 5.2 ± 1.8 per month. Activity in outpatient clinics was 548 first visits, and almost double for second visits. Scientific activity: the total number of courses and conferences attended was 34. The estimated mean number of presentations at conferences was 14, with 3 publications. Conclusions: LIR-AEC is a suitable tool to verify activity in the Spanish GGS Program. These results may be useful for comparing with training programs in other countries and in other surgical specialties. © 2012 AEC.

Domingo-Domenech E.,Hospital Del Mar | Panizo C.,Clinica Universitaria de Navarra | Nicolas C.,Hospital Central de Asturias | Bargay J.,Hospital Son Llatzer | And 16 more authors.
The Lancet Haematology | Year: 2014

Background: No standard fi rst-line systemic treatment for mucosa-associated lymphoid tissue (MALT) lymphoma is available. In a phase 2 study we aimed to assess the safety and activity of a response-adapted combination of bendamustine plus rituximab as upfront treatment for this type of lymphoma. Methods: In a multicentre, single-arm, non-randomised, phase 2 trial, we enrolled patients with MALT lymphoma at any site and stage and treated them with bendamustine (90 mg/m2 on days 1 and 2) plus rituximab (375 mg/m2 on day 1), every 4 weeks. Inclusion criteria were measurable or evaluable disease, age 18-85 years, and unequivocal active lymphoma; we also enrolled patients with MALT lymphoma arising in the stomach after failure of Helicobacter pylori eradication and primary cutaneous cases after failure of local therapies. Exclusion criteria included evidence of histological transformation, CNS involvement, and active hepatitis B or C virus or HIV infection. After three cycles, patients achieving complete response received one additional cycle (total four cycles) and those achieving partial response received three additional cycles (total six cycles). The primary endpoint was 2-year event-free survival. Analysis was by modifi ed intention to treat. This trial is registered with ClinicalTrials.gov, number NCT01015248. Findings: 60 patients from 19 centres in Spain were enrolled between May 27, 2009, and May 23, 2011, and received treatment; 57 patients were evaluable for the primary endpoint. Only 14 (25%) patients needed more than four cycles of treatment. After a median follow-up of 43 months (IQR 37-51), median event-free survival was not reached. Eventfree survival at 2 years was 93% (95% CI 84-97) and at 4 years was 88% (95% CI 74-95). The most frequently observed grade 3-4 adverse events were haematological: lymphopenia in 20 (33%) patients, neutropenia in 12 (20%) patients, and leucopenia in three (5%) patients. Grade 3-4 febrile neutropenia or infections were reported in three (5%) and four (7%) patients, respectively. Interpretation: This response-adapted schedule of bendamustine plus rituximab appears to be an active and well tolerated fi rst-line treatment for patients with MALT lymphoma.

Peg V.,University of Barcelona | Peg V.,Autonomous University of Barcelona | Espinosa-Bravo M.,University of Barcelona | Vieites B.,Hospital Virgen del Rocio | And 11 more authors.
Breast Cancer Research and Treatment | Year: 2013

Objective To assess the intraoperative positive sentinel lymph node (SLN) total tumor load (TTL, defined as the amount of CK19 mRNA copies [copies/μL] in all positive SLNs) obtained by one-step nucleic acid amplification (OSNA) and to determine whether it is predictive of non-SLNs involvement. Summary background data The OSNA assay (Sysmex Corporation, Kobe, Japan) is a new diagnostic technique that uses molecular biological techniques to analyze SLN that has been validated as an accurate method for detection of positive SLN. Although the American College of Surgeons Oncology Group Z0011 trial has defined a select cohort of patients in whom a completion axillary lymph node dissection (cALND) may be safely omitted, there are a still a number of patients where prediction of non-SLN metastasis may be helpful for cALND decision making. Multiple studies suggest that specific pathologic characteristics of the primary tumor and the SLN metastases are associated with an increased likelihood of additional positive non-SLN. Methods This is a retrospective multicentric cohort study of 697 patients with cT1-3N0 breast cancer, who had had intraoperative SLN evaluation by OSNA assay with a cALND. TTL is defined as the amount of CK19 mRNA copies number in all positives SLN (copies/μL). Results Univariate logistic regression showed that, in addition to TTL (p < 0.001), the number of affected SLNs (p < 0.001), tumor size (p < 0.001), HER2 status (p = 0.007), and lymphovascular invasion (LVI, p < 0.001) were predictive of ALND status. The multivariate logistic regression analysis showed that TTL is an independent predictor of metastatic non-SLNs, after adjusting for the tumor size, HER2 status, LVI and, in particular, the number of affected SLNs. Conclusions TTL by OSNA is a newly standardized and automated tool that predicts axillary node status better and independently of the number of affected SLNs and the type of surgery. This value can then help clinicians to personalize surgical treatment. Prospective studies will be carried out to determine the clinical impact of this variable in the management of patients. © 2013 Springer Science+Business Media New York.

Discover hidden collaborations