401 results on '"Martín JL"'
Search Results
2. Risk Analysis for Patient Safety in Surgical Departments: Cross-Sectional Design Usefulness
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Aranaz Ostáriz V, Gea Velázquez de Castro MT, López Rodríguez-Arias F, Valencia Martín JL, Aibar Remón C, Requena Puche J, Díaz-Agero Pérez C, Compañ Rosique AF, and Aranaz Andrés JM
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quality of care ,medical errors ,patient safety ,clinical safety ,adverse events - Abstract
(1) Background: Identifying and measuring adverse events (AE) is a priority for patient safety, which allows us to define and prioritise areas for improvement and evaluate and develop solutions to improve health care quality. The aim of this work was to determine the prevalence of AEs in surgical and medical-surgical departments and to know the health impact of these AEs. (2) Methods: A cross-sectional study determining the prevalence of AEs in surgical and medical-surgical departments was conducted and a comparison was made among both clinical areas. A total of 5228 patients were admitted in 58 hospitals in Argentina, Colombia, Costa Rica, Mexico, and Peru, within the Latin American Study of Adverse Events (IBEAS), led by the Spanish Ministry of Health, the Pan American Health Organization, and the WHO Patient Safety programme. (3) Results: The global prevalence of AEs was 10.7%. However, the prevalence of AEs in surgical departments was 11.9%, while in medical-surgical departments it was 8.9%. The causes of these AEs were associated with surgical procedures (38.6%) and nosocomial infections (35.4%). About 60.6% of the AEs extended hospital stays by 30.7 days on average and 25.8% led to readmission with an average hospitalisation of 15 days. About 22.4% resulted in death, disability, or surgical reintervention. (4) Conclusions: Surgical departments were associated with a higher risk of experiencing AEs.
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- 2020
3. Low-Value Clinical Practices: Knowledge and Beliefs of Spanish Surgeons and Anesthetists
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Aranaz Andrés JM, Valencia-Martín JL, Vicente-Guijarro J, Díaz-Agero Pérez C, López-Fresneña N, Carrillo I, Mira Solves JJ, and Working Group S
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surgery ,anesthesia ,medical overuse ,unnecessary procedures - Abstract
OBJECTIVES: To know the frequency and causes of low value surgical practices, according to the opinion of surgeons and anesthetists, and to determine their degree of knowledge about the Spanish "Choosing wisely" initiative. METHODS: Cross-sectional observational study, based on a self-administered online questionnaire through an opportunistic sample of 370 surgeons and anesthetists from three Spanish regions, contacted through Scientific Societies. The survey took part between July and December 2017. RESULTS: A patient profile requesting unnecessary practices was identified (female, 51-65 years old and unaffiliated disease). The frequency of requests was weekly or daily for 50.0% of the professionals, of whom 15.1% acknowledged succumbing to these pressures. To dissuade the patient, clinical reasons (47%) were considered the most effective. To increase control and safety in the case was the main reason to indicate them. The greatest responsibility for overuse was attributed to physicians, defensive medicine and mass media. Assessing professionals' knowledge on unnecessary practices, an average of 5 correct answers out of 7 was obtained. Some 64.1% of the respondents were unaware of the Spanish "Choosing wisely" initiative. CONCLUSIONS: Low value surgical practices are perceived as a frequent problem, which requires an approach entailing intervention with patients and the media as well as professionals. Increase awareness on unnecessary surgical practices, and how to avoid them remain essential.
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- 2020
4. Post-transplant cyclophosphamide for GVHD prophylaxis compared to ATG-based prophylaxis in unrelated donor transplantation
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Bailén R, Kwon M, Pascual-Cascón MJ, Ferrà C, Sanz J, Gallardo-Morillo A, García-Sola A, Torrent A, Jiménez-Lorenzo MJ, Piñana JL, Montoro J, Oarbeascoa G, Dorado N, Gómez-Centurión I, Muñoz C, Martínez-Laperche C, Anguita J, Buño I, and Díez-Martín JL
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GVHD prophylaxis, Post-transplant cyclophosphamide, Unrelated donor HSCT ,surgical procedures, operative ,immune system diseases - Abstract
Post-transplant cyclophosphamide (PTCY) effectively prevents graft-versus-host disease after unmanipulated HLA-haploidentical HSCT. The use of PTCY in the unrelated donor HSCT setting is less explored. We conducted a retrospective study of 132 consecutive patients undergoing a matched or 9/10 mismatched unrelated donor HSCT in 4 centers in Spain, 60 with anti-thymocyte globulin (ATG)-based prophylaxis combined with MTX-CsA, and 72 using a PTCY-based regimen. Peripheral blood stem cells were used as graft in most patients (111 patients, 84%); mMUD donors were balanced between groups. Cumulative incidences of grades II-IV and III-IV acute GVHD at 100 days were lower in the PTCy group (46% vs. 67%, p = 0.008; 3% vs. 34%, p = 0.003), without statistically significant differences in the 2-year cumulative incidence of chronic moderate-severe GVHD. At 2 years, no significant differences were observed in overall survival, event-free survival, cumulative incidence of relapse, and non-relapse mortality. GVHD was the most frequent cause of NRM in the ATG group. No differences were observed between groups in the composite endpoint of GVHD-free and relapse-free survival. In this study, PTCy combined with additional immunosuppression after MUD/mMUD HSCT showed a reduction of aGVHD rate with safety results comparable to those obtained with the ATG-based prophylaxis.
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- 2020
5. How Much of Root Cause Analysis Translates into Improved Patient Safety: A Systematic Review
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Martin-Delgado J, Martínez-García A, Aranaz JM, Valencia-Martín JL, and Mira JJ
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Patient safety ,Root cause analysis ,Translational medicine ,Quality assurance - Abstract
Objectives: The aim of this systematic review was to consolidate studies to determine whether root cause analysis (RCA) is an adequate method to decrease recurrence of avoidable adverse events (AAEs). Methods: A systematic search of databases from creation until December 2018 was performed using PubMed, Scopus and EMBASE. We included articles published in scientific journals describing the practical usefulness in and impact of RCA on the reduction of AAEs and whether professionals consider it feasible. The Mixed Methods Appraisal Tool was used to assess the quality of studies. Results: Twenty-one articles met the inclusion criteria. Samples included in these studies ranged from 20 to 1,707 analyses of RCAs, AAEs, recommendations, audits or interviews with professionals. The most common setting was hospitals (86%; n = 18), and the type of incident most analysed was AAEs, in 71% (n = 15) of the cases; 47% (n = 10) of the studies stated that the main weakness of RCA is its recommendations. The most common causes involved in the occurrence of AEs were communication problems among professionals, human error and faults in the organisation of the health care process. Despite the widespread implementation of RCA in the past decades, only 2 studies could to some extent establish an improvement in patient safety due to RCAs. Conclusions: RCA is a useful tool for the identification of the remote and immediate causes of safety incidents, but not for implementing effective measures to prevent their recurrence.
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- 2020
6. A novel predictive approach for GVHD after allogeneic SCT based on clinical variables and cytokine gene polymorphisms
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Martínez-Laperche C, Buces E, Aguilera-Morillo MC, Picornell A, González-Rivera M, Lillo R, Santos N, Martín-Antonio B, Guillem V, Nieto JB, González M, de la Cámara R, Brunet S, Jiménez-Velasco A, Espigado I, Vallejo C, Sampol A, Bellón JM, Serrano D, Kwon M, Gayoso J, Balsalobre P, Urbano-Izpizua Á, Solano C, Gallardo D, Díez-Martín JL, Romo J, Buño I, and GVHD/Immunotherapy Committee of the Spanish Group for Hematopoietic Transplantat
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Adult ,Male ,Oncology ,medicine.medical_specialty ,Multivariate analysis ,Adolescent ,Graft vs Host Disease ,Single-nucleotide polymorphism ,Disease ,03 medical and health sciences ,0302 clinical medicine ,Lasso (statistics) ,immune system diseases ,hemic and lymphatic diseases ,Internal medicine ,Linear regression ,medicine ,Humans ,Child ,Bone Marrow Transplantation ,Aged ,Retrospective Studies ,Transplantation ,Polymorphism, Genetic ,Framingham Risk Score ,Models, Genetic ,business.industry ,Hematopoietic Stem Cell Transplantation ,Infant, Newborn ,Infant ,Retrospective cohort study ,Hematology ,Middle Aged ,Allografts ,Clinical trial ,surgical procedures, operative ,Child, Preschool ,Hematologic Neoplasms ,030220 oncology & carcinogenesis ,Commentary ,Cytokines ,Female ,business ,Follow-Up Studies ,Stem Cell Transplantation ,030215 immunology - Abstract
Despite considerable advances in our understanding of the pathophysiology of graft-versus-host disease (GVHD), its prediction remains unresolved and depends mainly on clinical data. The aim of this study is to build a predictive model based on clinical variables and cytokine gene polymorphism for predicting acute GVHD (aGVHD) and chronic GVHD (cGVHD) from the analysis of a large cohort of HLA-identical sibling donor allogeneic stem cell transplant (allo-SCT) patients. A total of 25 SNPs in 12 cytokine genes were evaluated in 509 patients. Data were analyzed using a linear regression model and the least absolute shrinkage and selection operator (LASSO). The statistical model was constructed by randomly selecting 85% of cases (training set), and the predictive ability was confirmed based on the remaining 15% of cases (test set). Models including clinical and genetic variables (CG-M) predicted severe aGVHD significantly better than models including only clinical variables (C-M) or only genetic variables (G-M). For grades 3-4 aGVHD, the correct classification rates (CCR1) were: 100% for CG-M, 88% for G-M, and 50% for C-M. On the other hand, CG-M and G-M predicted extensive cGVHD better than C-M (CCR1: 80% vs. 66.7%, respectively). A risk score was calculated based on LASSO multivariate analyses. It was able to correctly stratify patients who developed grades 3-4 aGVHD (P < .001) and extensive cGVHD (P < .001). The novel predictive models proposed here improve the prediction of severe GVHD after allo-SCT. This approach could facilitate personalized risk-adapted clinical management of patients undergoing allo-SCT.
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- 2018
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7. Low transplant-related mortality after second allogeneic peripheral blood stem cell transplant with reduced-intensity conditioning in adult patients who have failed a prior autologous transplant
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Martino, R, Caballero, MD, de la Serna, J, Díez-Martín, JL, Urbano-Ispízua, A, Tomás, JF, Odriozola, J, León, A, Canals, C, San Miguel, J, and Sierra, J
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- 2002
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8. Allogeneic transplantation of CD34+-selected cells from peripheral blood in patients with myeloid malignancies in early phase: a case control comparison with unmodified peripheral blood transplantation
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Urbano-Ispizua, A, Brunet, S, Solano, C, Moraleda, JM, Rovira, M, Zuazu, J, de la Rubia, J, Bargay, J, Caballero, D, Díez-Martín, JL, Ojeda, E, de Oteiza, J Pérez, Ferrá, C, Espigado, I, Alegre, A, de la Serna, J, Torres, P, Riu, C, Odriozola, J, Rozman, C, Sierra, J, García-Conde, J, and Montserrat, E
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- 2001
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9. Impacto de la calcificación vascular en la mortalidad y salud ósea en pacientes con trasplante renal
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García Castro, R, primary, Alonso Montes, C, additional, Gómez Alonso, C, additional, Martín Carro, B, additional, Suárez Hevia, MA, additional, Fernández Gómez, JM, additional, Suárez Fernández, ML, additional, Cannata Andía, JB, additional, Fernández Martín, JL, additional, and Rodríguez García, M, additional
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- 2020
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10. Usability of an Eye Drop Delivery Aid for Single-Dose Instillation: Results from a Market Research Study
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Lebrón Gutiérrez K, Thomas S, Martin JL, and Dahlmann-Noor A
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dropaid ,eye drop instillation ,usability study ,vernal keratoconjunctivitis ,vkc ,Ophthalmology ,RE1-994 - Abstract
Keyla Lebrón Gutiérrez,1 Sarah Thomas,1 Julia L Martin,2 Annegret Dahlmann-Noor3 1Moorfields Eye Hospital, London, UK; 2Santen SA, La Voie-creuse 14, 1202, Geneva, Switzerland; 3NIHR Moorfields Biomedical Research Centre, London, UKCorrespondence: Annegret Dahlmann-Noor, NIHR Moorfields Biomedical Research Centre, London, UK, Email annegret.dahlmann-noor@nhs.netBackground: One of the challenges of treating chronic ocular diseases like vernal keratoconjunctivitis (VKC), glaucoma, and ocular surface disease is patient adherence to topical medication. To support correct eye drop instillation, a variety of delivery aids have been developed for both single-dose and conventional multi-dose containers.Methods: To evaluate Dropaid™ Single-dose, an eye drop delivery aid designed for single-dose containers, a usability study was conducted on 30 parents and caregivers of patients with VKC. After assessing the ability to squeeze a single eye drop from the single-dose container onto the eye of a pediatric medical dummy, the delivery aid was evaluated using an 11-point Likert scale on a variety of characteristics: from “very difficult” (− 5) to “very easy” (+5).Results: The majority of participants rated the task of opening the single-dose units (SDUs), preparing, and positioning the Dropaid™ Single-dose device as “very easy”. When providing a single eye drop from the container, 87% of participants rated the Dropaid™ Single-dose device as either “very easy” or “easy”, with a median rating score of +5.0 (interquartile range [IQR], 4.0– 5.0). For general ease of use, 84% considered the delivery aid as either “very easy” or “easy”, with a median score of +4.0 (IQR, 3.0– 5.0). Most participants (93%) rated Dropaid™ Single-dose as either “very comfortable” or “comfortable” to hold, with a median score of +5.0 (IQR, 4.0– 5.0).Conclusion: The Dropaid™ Single-dose delivery aid demonstrated rapid learning and ease of use across all stages of application, including opening the container, eye drop administration, and handling comfort. Although designed for use with single-dose containers to help eye drop instillation in patients with VKC, Dropaid™ Single-dose may provide a wider utility across a range of other ocular diseases such as glaucoma and dry eye.Keywords: Dropaid, eye drop instillation, usability study, vernal keratoconjunctivitis, VKC
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- 2023
11. Autologous peripheral blood stem cell transplantation for multiple myeloma: a report of 259 cases from the Spanish Registry
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Alegre, A, Díaz-Mediavilla, J, San-Miguel, J, Martínez, R, Laraña, J García, Sureda, A, Lahuerta, JJ, Morales, D, Bladé, J, Caballero, D, De la Rubia, J, Escudero, A, Díez-Martín, JL, Hernández-Navarro, F, Rifón, J, Odriozola, J, Brunet, S, De la Serna, J, Besalduch, J, Vidal, MJ, Solano, C, Leon, A, Sánchez, JJ, Martínez-Chamorro, C, and Fernández-Rañada, JM
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- 1998
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12. Low-value clinical practices and harm caused by non-adherence to 'do not do' recommendations in primary care in Spain: a Delphi study
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Mira JJ, Caro Mendivelso J, Carrillo I, González de Dios J, Olivera G, Pérez-Pérez P, Nebot C, Silvestre C, Agra Y, Fernandez A, Valencia-Martín JL, Ariztegui A, and Aranaz J
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Delphi technique, overuse, patient safety, primary care, quality assurance - Abstract
To determine the non-adherence to the primary care 'do not do' recommendations (DNDs) and their likelihood to cause harm.
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- 2019
13. Serum phosphate optimal timing and range associated with patients survival in haemodialysis: the COSMOS study
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Fernández-Martín JL, Dusso A, Martínez-Camblor P, Dionisi MP, Floege J, Ketteler M, London G, Locatelli F, Górriz JL, Rutkowski B, Bos WJ, Tielemans C, Martin PY, Wüthrich RP, Pavlovic D, Benedik M, Rodríguez-Puyol D, Carrero JJ, Zoccali C, Cannata-Andía JB, and COSMOS group
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- 2019
14. Different statistical models used in the calculation of the prevalence of insulin-dependent diabetes mellitus according to the polymorphism of the HLA-DQ region
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MARTÍN, JL SANTOS, PÉREZ-BRAVO, F, CARRASCO, E, ICAZA, G, CALVILLÁN, M, and ALBALA, C
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- 1997
15. Efecto de la enzima antioxidante catalasa en la calcificación vascular y desmineralización ósea
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Martínez Arias, L, Panizo García, S, Carrillo López, N, Barrio Vázquez, S, Quirós González, I, Román García, P, Mora Valenciano, I, Miguel Fernández, D, Añón Álvarez, E, Fernández Martín, JL, Ruiz Torres, MP, Cannata Andía, JB, and Naves Díaz, M
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antioxidants ,estrés oxidativo ,vascular calcification ,chronic renal failure ,hueso ,insuficiencia renal crónica ,calcificación vascular ,antioxidantes ,catalase ,oxidative stress ,catalasa ,µCT ,bone - Abstract
Resumen Objetivos: Evaluar el papel de la enzima antioxidante catalasa sobre el proceso de calcificación vascular asociada a insuficiencia renal crónica (IRC) y su efecto sobre la masa ósea. Material y métodos: Se utilizaron ratones C57/BL6J salvajes (WT) y transgénicos (TG), que sobreexpresan la enzima catalasa, a los que se les indujo IRC. Se utilizaron como control ratones WT y TG con intervención simulada. Transcurridas 16 semanas los animales se sacrificaron, obteniendo suero para analizar marcadores bioquímicos, el trozo residual de riñón, la aorta y las tibias. Se utilizó igualmente un modelo in vitro de cultivo primario de células de músculo liso vascular (CMLV) procedentes de aorta de ratón WT y TG sometidas durante 8 días a un medio calcificante con 3 mM de fósforo y 2 mM de calcio. Resultados: Solo en animales WT con IRC se observó un incremento significativo en la expresión génica de Runx2 y del depósito renal de calcio y un deterioro de la estructura ósea a nivel trabecular. Este efecto no se observó en ratones TG con IRC. Solo en las CMLV de ratones WT, la adición de medio calcificante produjo un aumento del contenido en calcio, de la expresión proteica de Runx2 y de las especies reactivas de oxígeno mitocondriales con una menor expresión proteica de la enzima catalasa. Conclusiones: La sobreexpresión de la enzima catalasa redujo el proceso de calcificación tanto in vivo como in vitro, mostrando in vivo que ese descenso se acompañó de una mejora en los parámetros óseos estudiados. Resultados: Solo en animales WT con IRC se observó un incremento significativo en la expresión génica de Runx2 y del depósito renal de calcio y un deterioro de la estructura ósea a nivel trabecular. Este efecto no se observó en ratones TG con IRC. Solo en las CMLV de ratones WT, la adición de medio calcificante produjo un aumento del contenido en calcio, de la expresión proteica de Runx2 y de las especies reactivas de oxígeno mitocondriales con una menor expresión proteica de la enzima catalasa. Conclusiones: La sobreexpresión de la enzima catalasa redujo el proceso de calcificación tanto in vivo como in vitro, mostrando in vivo que ese descenso se acompañó de una mejora en los parámetros óseos estudiados. Abstract Objetives: Assess the role of the catalase antioxidant enzyme in the vascular calcification process associated with chronic renal failure (CRF) and its effect on bone mass. Material and methods: Wild type C57/BL6J mice (WT) and transgenic mice (TG) were used, that overexpress the catalase enzyme, to which CRF was induced. Control WT and TG mice were used in simulated intervention. After 16 weeks, the mice were sacrificed, with serum samples taken for biochemical markers as well as residual pieces of kidney, aorta and tibias. An in vitro model of primary culture of smooth vascular muscle cells (SVMC) taken from the WT and TG aorta which underwent eight days of 3 mM phosphorus and 2 mM calcium calcifying medium. Results: A significant increase in Runx2 gene expression, calcium renal deposit and bone structure deterioration at trabecular level was only detected in WT mice with CRF. This was not observed in TG mice with CRF. Only in the case of WT mice SVMC, did added calcification medium raise calcium levels, proteic Runx2 expression and the reactive oxygen species of mitochondria with low catalase enzyme. Conclusions: Calcifying catalase over-expression was observed in both in vivo and in vitro, with in vivo showing that this reduction was accompanied by an improvement in bone parameters under study.
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- 2017
16. Efecto de la enzima antioxidante catalasa en la calcificación vascular y desmineralización ósea
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Martínez Arias, L, primary, Panizo García, S, additional, Carrillo López, N, additional, Barrio Vázquez, S, additional, Quirós González, I, additional, Román García, P, additional, Mora Valenciano, I, additional, Miguel Fernández, D, additional, Añón Álvarez, E, additional, Fernández Martín, JL, additional, Ruiz Torres, MP, additional, Cannata Andía, JB, additional, and Naves Díaz, M, additional
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- 2017
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17. Bone mass and vertebral deformity: Relationship and prevalence according to different methods of radiological evaluation
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Díaz, JB., Naves, ML., Fernández Martín, JL., Gómez, C., Jiménez Blanco, JR., O’Neill, T., and Canata, JB
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- 1996
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18. [Vasoproliferative tumors of the ocular fundus]
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Sánchez Ronco IM, Valverde Almohalla S, Arteaga Sánchez A, Jiménez Guerra V, Belzunce Manterola A, Benavides Yanguas R, Leoz Macías G, Hijós Gastón M, and Encinas Martín JL
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Adult ,Male ,Fundus Oculi ,Retinal Neoplasms ,Brachytherapy ,Humans ,Female ,Middle Aged ,Hemangioma ,Iridium Radioisotopes ,Magnetic Resonance Imaging ,Retrospective Studies - Abstract
To establish the differential diagnosis from choroidal melanoma and other malignant tumors.We report 5 patients with vasoproliferative tumors studied in our Hospital since 1993; diagnosis was mainly based on clinic appearance of the lesions. Each patient had undergone indirect ophthalmoscopy and ocular echography.Three upon five cases (studied before 1995) were treated with brachytherapy with Ir(192) because they were suspected to be choroidal melanomas. Periodical observation and treatment of associated complications was the treatment of choice in two other cases in which these complications determined the final visual acuity.It is important to establish the differential diagnosis between choroidal melanoma and other malignant tumors, as their prognosis and treatment are different.
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- 2001
19. [Risk factors of small choroidal melanocytic lesions]
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Fernández Sañudo M, Valverde Almohalla S, Jiménez Vales F, Vázquez De Parga Salleras P, and Encinas Martín JL
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Adult ,Male ,Adolescent ,Risk Factors ,Choroid Neoplasms ,Humans ,Female ,Fluorescein Angiography ,Melanoma ,Aged ,Follow-Up Studies ,Retrospective Studies - Abstract
To detect the possible predictive factors of tumor spread or future growth of the small choroidal melanocytic lesions.Retrospective review of the clinical medical histories of fourteen patients with small choroidal melanocytic lesions --or =3mm in thickness-, which due to these features could be confused with choroidal nevus. Few clinical parameters are assessed: tumor thickness, posterior tumor margin touching the optic disc, symptoms and documented tumor growth as main prognostic features.Tumor growth was seen in only one patient, whose tumor was treated with epiescleral iridium-192-wires, showing relapse later on. No other patient showed tumor growth, assessed by echography A-B and ocular fundus photography. One of those had symptoms with no other risk factor. Two patients had the tumor located beside the optic disc, one of which presented decreased vision and therefore we had to photocoagulate the tumor. A minimun of six months follow-up was performed in all the patients.With the criteria applied in our series of small choroidal melanocytic lesions, expectant observation is a valid treatment due to the small tumor growth risk. Thanks to echography and to the precise comparison between ocular fundus photographs to detect minimun growth, a simple follow-up is useful and early conservative treatment is still available.
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- 2001
20. Binding of aluminium to plasma proteins: comparative effect of desferrioxamine and deferiprone (L1)
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Menéndez-Fraga P, Cannata-Andía Jb, Díaz-López Jb, Fernández-Martín Jl, and Canteros Ma
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inorganic chemicals ,Time Factors ,Pyridones ,Clinical Biochemistry ,Kinetics ,chemistry.chemical_element ,Ultrafiltration ,Deferoxamine ,Iron Chelating Agents ,Biochemistry ,chemistry.chemical_compound ,Aluminium ,Reference Values ,medicine ,Humans ,Chelation ,Deferiprone ,Chromatography ,Spectrophotometry, Atomic ,Biochemistry (medical) ,Temperature ,General Medicine ,Blood Proteins ,Blood proteins ,chemistry ,Thermodynamics ,Graphite furnace atomic absorption ,Quantitative analysis (chemistry) ,medicine.drug ,Aluminum ,Protein Binding - Abstract
Ultramicrofiltration techniques were used to study both the binding of aluminium to high molecular weight proteins in the presence of different concentrations of desferrioxamine and deferiprone (LI) and the kinetics of aluminium release from human serum proteins. Human serum from healthy volunteers was used in all studies. The serum was spiked with aluminium (100 μg/l) and different concentrations of chelators. Ultramicrofiltration was performed with Amicon YMT membranes which had a nominal cut-off of 30 000 Da. Aluminium was measured by graphite furnace atomic absorption spectrometry in total serum and ultrafiltered fluid. Deferiprone shows a higher capability to displace aluminium from serum proteins (80%) than desferrioxamine (60%) at equivalent concentrations of the chelators. The kinetics of the release were also faster for deferiprone, taking 20 min to achieve its maximum effect, whereas, desferrioxamine achieved only 80% of its maximum effect after 2 h. Thus, deferiprone could be an attractive alternative to desferrioxamine, as an aluminium chelator agent.
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- 1994
21. Impact Of Spinal Cord Injury On Sleep: Current Perspectives
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Sankari A, Badr MS, Martin JL, Ayas NT, and Berlowitz DJ
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SCI ,sleep-disordered breathing ,leg movements ,circadian rhythm sleep disorders ,insomnia. ,Psychiatry ,RC435-571 ,Neurophysiology and neuropsychology ,QP351-495 - Abstract
Abdulghani Sankari,1,2 M Safwan Badr,1,2 Jennifer L Martin,3,4 Najib T Ayas,5 David J Berlowitz6–8 1Department of Internal Medicine, John D. Dingell VA Medical Center, Detroit, MI, USA; 2Department of Internal Medicine, Wayne State University, Detroit, MI, USA; 3Geriatric Research, Education and Clinical Center, VA Greater Los Angeles Healthcare System, North Hills, CA, USA; 4Geriatric Research, Education and Clinical Center, David Geffen School of Medicine at the University of California, Los Angeles, CA, USA; 5Department of Medicine, The University of British Columbia, Vancouver, BC, Canada; 6Department of Physiotherapy, University of Melbourne, Melbourne, Australia; 7Department of Physiotherapy, Austin Health, Melbourne, Australia; 8Institute for Breathing and Sleep, Austin Health, Melbourne, AustraliaCorrespondence: Abdulghani SankariDivision of Pulmonary, Critical Care and Sleep Medicine, 3990 John R, 3-Hudson, Detroit, MI 48201, USATel +1 (313) 745-6033Fax +1 (313) 745-8725Email asankari@wayne.eduAbstract: Sleep disorders are commonly encountered in people living with spinal cord injury (SCI). Primary sleep disorders such as sleep-disordered breathing (SDB), sleep-related movement disorders, circadian rhythm sleep-wake disorders, and insomnia disorder are common conditions after SCI but remain under-recognized, underdiagnosed and therefore remain untreated for a majority of patients. Sleep disturbances in people living with SCI are associated with significant impairments of daytime function and quality of life. Previous reviews have described findings related mainly to SDB but have not examined the relationship between other sleep disorders and SCI. This narrative review examines various sleep abnormalities and related functional and physical impairments in people living with SCI. It discusses new evidence pertaining to management, highlights existing limitations in the literature and recommends future directions for research.Keywords: SCI, sleep-disordered breathing, leg movements, circadian rhythm sleep disorders, insomnia
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- 2019
22. Tratamiento primario del melanoma de coroides mediante termoterapia transpupilar
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Cajigal-Morales, C, primary, Valverde-Almohalla, S, additional, and Encinas-Martín, JL, additional
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- 2005
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23. Childbearing age patients with essential thrombocythemia: Should they be placed on interferon?
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Fernández Mn, Díez-Martín Jl, and Banãs Mh
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Pregnancy ,business.industry ,Interferon ,Essential thrombocythemia ,Childbearing age ,medicine ,Alpha interferon ,Hematology ,Bioinformatics ,medicine.disease ,business ,medicine.drug - Published
- 1996
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24. Parietal cell activity is not related to antral D cells number in patients with duodenal ulcer
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Valenzuela, M, primary, Martín, JL, additional, López-Andrade, A, additional, Caballero, A, additional, and Nogales, F, additional
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- 1998
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25. Quantification of the inflammatory infiltrate of the antral mucosa by computerized image analysis
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Valenzuela, M, primary, Martín, JL, additional, López-Andrade, A, additional, Caballero, A, additional, and Nogales, F, additional
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- 1998
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26. Parathyroid and serum calcium metabolism in acute aluminium exposure: Effect of renal function and dose
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Cannata, JB, primary, Virgós, MJ, additional, Allende, MT, additional, Martín, JL Fernández, additional, Alonso, C Gómez, additional, and López, JB Díaz, additional
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- 1992
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27. Human immunodeficiency virus-associated plasmablastic lymphoma: Poor prognosis in the era of highly active antiretroviral therapy.
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Castillo JJ, Furman M, Beltrán BE, Bibas M, Bower M, Chen W, Díez-Martín JL, Liu JJ, Miranda RN, Montoto S, Nanaji NM, Navarro JT, Seegmiller AC, and Vose JM
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- 2012
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28. Autologous stem-cell transplantation in patients with HIV-related lymphoma.
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Balsalobre P, Díez-Martín JL, Re A, Michieli M, Ribera JM, Canals C, Rosselet A, Conde E, Varela R, Cwynarski K, Gabriel I, Genet P, Guillerm G, Allione B, Ferrant A, Biron P, Espigado I, Serrano D, and Sureda A
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- 2009
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29. Prospective observational study to assess value of prostate cancer diagnostic methods.
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Lopez-Saez J, Otero M, Senra-Varela A, Ojea A, Sáez Martín JL, Duran Muñoz B, and Vieito Fuentes J
- Abstract
The purpose of this article is to evaluate the efficiency and effectiveness of analytical and imaging methods for diagnosing prostate cancer in northwest Spain. The authors investigated prospectively two groups of patients with a pathological digital rectal examination (DRE) or prostate-specific antigen (PSA). Sensitivity, specificity, positive predictive value, negative predictive value, receiver operating characteristics curves, and other analyses were performed to determine the relative contributions of PSA, DRE, gray-scale transrectal ultrasonography (TRUS), color Doppler ultrasound (CDUS), symptoms, and patient age to cancer prediction. The presence of prostatic disease symptoms did not distinguish between subjects with and without cancer. The most sensitive (98%) was total PSA (> 4 ng/mL), and the most specific (78%) was DRE and TRUS (65%). The contribution of PSA, DRE, and TRUS to the diagnosis of prostate cancer was significant. In patients with a PSA between 4 and 10 ng/mL, PSA specificity increased, using a free/total PSA ratio of 15%. The PSA continues to be the most sensitive method for prostate cancer diagnosis. DRE tends to be more negative at early stages of cancer detection. Comparing the conventional TRUS echography with the CDUS, the latter is a better detector in the diagnosis of cancer. [ABSTRACT FROM AUTHOR]
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- 2004
30. Integrated strategy for Dengue prevention and control in the Region of the Americas.
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San Martín JL and Brathwaite-Dick O
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During the last 22 years, the Region of the Americas has seen an upward trend in dengue incidence, with epidemics peaking ever higher and recurring every 3-5 years, almost regularly. A major factor in the spread of the disease has been the diminished capacity of national programs to respond with dengue prevention and control. This paper evaluates the Integrated Strategy for Dengue Prevention and Control-approved by the 44th Directing Council of the Pan American Health Organization in September 2003- and its preliminary results. The Integrated Strategy for Dengue is a management model designed to strengthen national programs, with a focus on reducing morbidity, mortality, and the societal and economic burdens produced by outbreaks and epidemics. Currently, 11 of the countries in the Region have developed a plan for or implemented a national strategy. In addition, a sub-Regional plan has been developed for Central America and the Dominican Republic. The Integrated Strategy for Dengue is expected to produce a qualitative leap forward in prevention and control through stronger partnerships among the State, its various ministries, and governing bodies, at all levels; private companies; and the range of community and civil groups. Once implemented, this strategy will reduce risk factors for dengue transmission, establish an integrated epidemiological surveillance system, decrease Aedes aegypti mosquito populations, prepare laboratories to better detect and identify the virus, optimize diagnosis and treatment, and, as a result, decrease the frequency, magnitude, and severity of dengue outbreaks and epidemics. [ABSTRACT FROM AUTHOR]
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- 2007
31. Systematic reviews of the scientific evidence: some practical points.
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García JM, Rodríguez Martín JL, and Subirana M
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Copyright of Enfermería Clínica is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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- 2003
32. Medical device design for adolescent adherence and developmental goals: a case study of a cystic fibrosis physiotherapy device
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Lang AR, Martin JL, Sharples S, and Crowe JA
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Medicine (General) ,R5-920 - Abstract
Alexandra R Lang,1 Jennifer L Martin,2 Sarah Sharples,1 John A Crowe3 1Human Factors Research Group, Faculty of Engineering, University of Nottingham, Nottingham, UK; 2Mindtech Healthcare Technology Cooperative (Htc), Faculty of Medicine and Health Sciences, Institute of Mental Health, Nottingham, UK; 3Biomedical Engineering, Faculty of Engineering, University of Nottingham, UK Purpose: This study investigates the psychosocial aspects of adolescent medical device use and the impact on adolescent adherence and goals for the transitional years between child and adulthood. Patients and methods: Interviews were carried out with 20 adolescents with cystic fibrosis, investigating adolescent medical device use and experiences in relation to their personal and social lives and development through the adolescent years. The qualitative dataset was thematically examined using a content analysis method. Results: The results show that adolescent users of medical technologies want their independence and capabilities to be respected. Adolescent adherence to medical device use was associated with short- and long-term motivations, where older adolescents were able to comprehend the longer-term benefits of use against short-term inconvenience more acutely than younger adolescents. It was suggested that medical devices could provide a tool for communication with families and clinicians and could support adolescents as they take responsibility for managing their condition. Themes of “fitting into teenage life” and “use in the community” were associated with adolescents' needs to form their own identity and have autonomy. Conclusion: This study shows that adolescent needs regarding medical device use are complex. It provides evidence to suggest that devices designed inclusively for adolescents may lead to improved adherence and also facilitate transition through the adolescent years and achievement of adolescent goals. Keywords: young people, teenagers, technologies, compliance, transition, user requirements
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- 2014
33. Influence of long-term diet modification on platelet function and composition in Moselle farmers
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Renaud, S, Godsey, F, Dumont, E, Thevenon, C, Ortchanian, E, and Martin, JL
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- 1986
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34. Assessing the insecticide resistance of an Aedes aegypti strain in El Salvador.
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Lazcano JAB, Rodríguez MM, San Martín JL, Romero JE, and Montoya R
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Objectives. To assess the level of insecticide susceptibility of a certain Aedes aegypti strain found in El Salvador and to explain the mechanisms for its resistance to temephos. Methods. An A. aegypti strain from the municipality of Soyapango, Department of San Salvador, El Salvador, was studied. Bioassays were used to determine the susceptibility of the larvae to the organophosphate insecticide temephos and to three pyrethroids (deltamethrin, lambda-cyhalothrin, and cypermethrin); and of adults to an organophosphate insecticide (chlorpyrifos). The resistance factor (RF50) with determined with respect to a reference susceptible strain (Rockefeller). The mechanism of temephos resistance was determined through the use of synergistic substances, biochemical assays for enzymatic activity, and polyacrylamide gel zymograms. Results. The larvae of the strain studied proved highly resistant to temephos (RF50 = 24.16). Of the enzyme samples analyzed, only the esterase A4 was linked to the mechanism of temephos resistance. The adult mosquitoes were susceptible to lambda-cyhalothrin and chlorpyrifos; and resistance to deltamethrin and cypermethrin fell into the category needing further verification, Conclusions. Temephos resistance could reduce the efficiency of chemical control of the A. aegypti mosquito in El Salvador study area, Chlorpyrifos, lambda-cyhalothrin, and cypermethrin are good alternative insecticides for use in new efforts to control this vector. [ABSTRACT FROM AUTHOR]
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- 2009
35. Mécanismes moléculaires médiant la neuroprotection de la substance blanche périventriculaire par le VIP
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Gressens, P, Marret, S, Martin, JL, Lacquerriere, A, and Evrard, P
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- 1998
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36. Psychometric characteristics of the Spanish version of instruments to measure neck pain disability
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Álvaro Milán, Jose Luís Peña, Joaquín Ayerbe, Dolores Vázquez, Alejandra Cano, Luis Manuel Zamora González, Ignacio Gómez-Ochoa, Gonzalo Bolado, Francisco M. Kovacs, David Martí, Joan Bagó, Mariano Ortega, Ana Ausín, Javier Zamora, Ana Royuela, Ricardo Blanco, Ma Trinidad Rueda, Montserrat Núñez, Alejandro Carballo, José Luis Ortega Martín, Eva Calvo, Leovigildo Ginel, Nuria Gimeno, Anna Vidal, Sergio Giménez, Miquel Tomás, Víctor Abraira, Mario Gestoso, María Teresa Gil del Real, Jesús Seco, Alfonso Muriel, Ma José Ramírez, Montserrat Cañellas, Salvador Fuster, María Antonia Mir, Pilar Brieva, Miryam Bernal, Nicole Mufraggi, Carmen Fernández, Luis Alvarez, Domingo Ramón, Josep Corcoll, Ma Dolores Castillo, Universitat de Barcelona, [Kovacs,FM, Real,MTG del] Departamento Científico, Fundación Kovacs, Palma de Mallorca, Spain. [Bagó,J] Unidad de Cirugía del Raquis, Hospital Vall d'Hebrón, Barcelona, Spain. [Royuela,A, Muriel,A, Abraira,V, Zamora,J, Cano,A] Unidad de Bioestadística Clínica, Hospital Ramón y Cajal, Madrid, Spain. [Seco,J] Departamento de Enfermería y Fisioterapia, Universidad de León, Ponferrada, Spain. [Giménez,S, Milán,A] Centro de Salud del Limonar, Málaga, Spain. [Martín,JL, Rueda,MT] Servicio de Medicina Preventiva, Hospital de Rehabilitación y Traumatología Virgen de las Nieves, Granada, Spain. [Peña,JL, Blanco,R] Servicio de Reumatología, Hospital Marqués de Valdecilla, Santander, Spain. [Gestoso,M, Mufraggi,N] Clínica Kovacs, Fundación Kovacs, Palma de Mallorca, Spain. [Núñez,M, Fuster,S] Servicio de Cirugía Ortopédica y Traumatología, Hospital Clínico, Barcelona, Spain. [Corcoll,J] Centro de Salud de Tramuntana Esporlas, Mallorca, Spain. [Gómez-Ochoa,I] Servicio de Rehabilitación, Hospital Lozano Blesa, Zaragoza, Spain. [Ramírez,MJ, Calvo,E, Brieva,P] Unidad de Rehabilitación, Hospital Marqués de Valdecilla, Santander, Spain. [Castillo,MD] Delegación Asuntos Sociales, Granada, Spain. [Martí,D, Gimeno,N, Carballo,A, Vidal,A] Servicio de Traumatología y Ortopedia, Hospital Parc Taulí de Sabadell, Barcelona, Spain. [Fernández,C] Centro de Salud de Valldargent, Palma de Mallorca, Spain. [Vázquez,D] Servicio de Rehabilitación, Mutua Asepeyo, Madrid, Spain. [Cañellas,M] Servicio de Anestesia, Hospital Parc Taulí de Sabadell, Barcelona, Spain. [Álvarez,L] Servicio de Traumatología, Fundación Jiménez Díaz, Madrid, Spain. [Ayerbe,J] Servicio de Neurocirugía, Fundación Jiménez Díaz, Madrid, Spain. [González,L] Centro de Salud Serrería II, Valencia, Spain. [Ginel,L] Centro de Salud de Ciudad Jardín, Málaga, Spain. [Ortega,M] Centro de Salud de Es Trencadors de Lluchmajor, Mallorca, Spain. [Bernal,M, Bolado,G] Servicio de Rehabilitación, Hospital Clínico Universitario, Valladolid, Spain. [Ausín,A, Ramón,D] Unidad Básica de Es Castell, Menorca, Spain. [Mir,MA] Centro de Salud de Inca. Mallorca, Spain. [Tomás,M] Servicio de Emergencias 061. Mallorca, Spain., and This study was funded by the Kovacs Foundation.
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Male ,lcsh:Diseases of the musculoskeletal system ,Sports medicine ,Psychometrics ,Intraclass correlation ,medicine.medical_treatment ,España ,Diseases::Nervous System Diseases::Neurologic Manifestations::Pain::Neck Pain [Medical Subject Headings] ,humanos ,Named Groups::Persons::Age Groups::Adult::Middle Aged [Medical Subject Headings] ,Disability Evaluation ,Mediana Edad ,Quality of life ,Surveys and Questionnaires ,Orthopedics and Sports Medicine ,Cuestionarios ,Neck pain disability ,Masculino ,mediana edad ,Pain Measurement ,Geographicals::Geographic Locations::Europe::Spain [Medical Subject Headings] ,Neck pain ,anciano ,Rehabilitation ,Neck Pain ,Adulto ,Femenino ,Analytical, Diagnostic and Therapeutic Techniques and Equipment::Investigative Techniques::Epidemiologic Methods::Data Collection::Questionnaires [Medical Subject Headings] ,adulto ,Middle Aged ,Low back pain ,Humanos ,Analytical, Diagnostic and Therapeutic Techniques and Equipment::Diagnosis::Diagnostic Techniques and Procedures::Disability Evaluation [Medical Subject Headings] ,Analytical, Diagnostic and Therapeutic Techniques and Equipment::Investigative Techniques::Epidemiologic Methods::Epidemiologic Research Design::Reproducibility of Results [Medical Subject Headings] ,Características Culturales ,medida del dolor ,Evaluación de la Discapacidad ,Psicometría ,Female ,medicine.symptom ,Dolor ,Disciplines and Occupations::Social Sciences::Anthropology::Anthropology, Cultural::Culture::Cultural Characteristics [Medical Subject Headings] ,Research Article ,Adult ,medicine.medical_specialty ,Traducción ,Anciano ,Check Tags::Male [Medical Subject Headings] ,Spanish version of NDI ,Psychiatry and Psychology::Behavioral Disciplines and Activities::Psychological Tests::Psychometrics [Medical Subject Headings] ,Physical medicine and rehabilitation ,Rheumatology ,Disciplines and Occupations::Social Sciences::Quality of Life [Medical Subject Headings] ,medicine ,valoración de discapacidades ,Humans ,Named Groups::Persons::Age Groups::Adult::Aged [Medical Subject Headings] ,características culturales ,Aged ,Analytical, Diagnostic and Therapeutic Techniques and Equipment::Diagnosis::Diagnostic Techniques and Procedures::Diagnostic Techniques, Neurological::Neurologic Examination::Pain Measurement [Medical Subject Headings] ,Referred pain ,Cultural Characteristics ,business.industry ,Coll ,Reproducibility of Results ,Translating ,reproducibilidad de resultados ,Dolor de Cuello ,Reproducibilidad de Resultados ,psicometría ,Check Tags::Female [Medical Subject Headings] ,Spain ,calidad de vida ,Physical therapy ,Quality of Life ,Dimensión del Dolor ,Calidad de Vida ,dolor de cuello ,lcsh:RC925-935 ,business - Abstract
Comparative Study; Journal Article; Multicenter StTrial Registration:; Research Support, Non-U.S. Gov't; Clinical Trials Register NCT00349544. BACKGROUND. The NDI, COM and NPQ are evaluation instruments for disability due to NP. There was no Spanish version of NDI or COM for which psychometric characteristics were known. The objectives of this study were to translate and culturally adapt the Spanish version of the Neck Disability Index Questionnaire (NDI), and the Core Outcome Measure (COM), to validate its use in Spanish speaking patients with non-specific neck pain (NP), and to compare their psychometric characteristics with those of the Spanish version of the Northwick Pain Questionnaire (NPQ). METHODS. Translation/re-translation of the English versions of the NDI and the COM was done blindly and independently by a multidisciplinary team. The study was done in 9 primary care Centers and 12 specialty services from 9 regions in Spain, with 221 acute, subacute and chronic patients who visited their physician for NP: 54 in the pilot phase and 167 in the validation phase. Neck pain (VAS), referred pain (VAS), disability (NDI, COM and NPQ), catastrophizing (CSQ) and quality of life (SF-12) were measured on their first visit and 14 days later. Patients' self-assessment was used as the external criterion for pain and disability. In the pilot phase, patients' understanding of each item in the NDI and COM was assessed, and on day 1 test-retest reliability was estimated by giving a second NDI and COM in which the name of the questionnaires and the order of the items had been changed. RESULTS. Comprehensibility of NDI and COM were good. Minutes needed to fill out the questionnaires [median, (P25, P75)]: NDI. 4 (2.2, 10.0), COM: 2.1 (1.0, 4.9). Reliability: [ICC, (95%CI)]: NDI: 0.88 (0.80, 0.93). COM: 0.85 (0.75,0.91). Sensitivity to change: Effect size for patients having worsened, not changed and improved between days 1 and 15, according to the external criterion for disability: NDI: -0.24, 0.15, 0.66; NPQ: -0.14, 0.06, 0.67; COM: 0.05, 0.19, 0.92. Validity: Results of NDI, NPQ and COM were consistent with the external criterion for disability, whereas only those from NDI were consistent with the one for pain. Correlations with VAS, CSQ and SF-12 were similar for NDI and NPQ (absolute values between 0.36 and 0.50 on day 1, between 0.38 and 0.70 on day 15), and slightly lower for COM (between 0.36 and 0.48 on day 1, and between 0.33 and 0.61 on day 15). Correlation between NDI and NPQ: r = 0.84 on day 1, r = 0.91 on day 15. Correlation between COM and NPQ: r = 0.63 on day 1, r = 0.71 on day 15. CONCLUSION. Although most psychometric characteristics of NDI, NPQ and COM are similar, those from the latter one are worse and its use may lead to patients' evolution seeming more positive than it actually is. NDI seems to be the best instrument for measuring NP-related disability, since its results are the most consistent with patient's assessment of their own clinical status and evolution. It takes two more minutes to answer the NDI than to answer the COM, but it can be reliably filled out by the patient without assistance. TRIAL REGISTRATION Clinical Trials Register NCT00349544. Yes
37. A Review of Polyhydroxyalkanoates: Characterization, Production, and Application from Waste.
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Getino L, Martín JL, and Chamizo-Ampudia A
- Abstract
The search for alternatives to petrochemical plastics has intensified, with increasing attention being directed toward bio-based polymers (bioplastics), which are considered healthier and more environmentally friendly options. In this review, a comprehensive overview of polyhydroxyalkanoates (PHAs) is provided, including their characterization, applications, and the mechanisms underlying their biosynthesis. PHAs are natural polyesters produced by a wide range of prokaryotic and some eukaryotic organisms, positioning them as a significant and widely studied type of bioplastic. Various strategies for the production of PHAs from agroindustrial waste, such as cacao shells, cheese whey, wine, wood, and beet molasses, are reviewed, emphasizing their potential as sustainable feedstocks. Industrial production processes for PHAs, including the complexities associated with extraction and purification, are also examined. Although the use of waste materials offers promise in reducing costs and environmental impact, challenges remain in optimizing these processes to enhance efficiency and cost-effectiveness. The need for continued research and development to improve the sustainability and economic viability of PHA production is emphasized, positioning PHAs as a viable and eco-friendly alternative to conventional petroleum-based plastics.
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- 2024
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38. Identification of predictive models including polymorphisms in cytokines genes and clinical variables associated with post-transplant complications after identical HLA-allogeneic stem cell transplantation.
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Muñiz P, Martínez-García M, Bailén R, Chicano M, Oarbeascoa G, Triviño JC, de la Iglesia-San Sebastian I, Fernández de Córdoba S, Anguita J, Kwon M, Díez-Martín JL, Olmos PM, Martínez-Laperche C, and Buño I
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- Humans, Male, Female, Adult, Middle Aged, Young Adult, Adolescent, Hematologic Neoplasms therapy, Hematologic Neoplasms genetics, Hematologic Neoplasms mortality, HLA Antigens genetics, HLA Antigens immunology, Polymorphism, Genetic, Aged, Hematopoietic Stem Cell Transplantation adverse effects, Cytokines genetics, Graft vs Host Disease genetics, Graft vs Host Disease etiology, Transplantation, Homologous adverse effects
- Abstract
Backgrounds: Although allogeneic hematopoietic stem cell transplantation (allo-HSCT) is a potentially curative therapy for hematological malignancies, it can be associated with relevant post-transplant complications. Several reports have shown that polymorphisms in immune system genes are correlated with the development of post-transplant complications. Within this context, this work focuses on identifying novel polymorphisms in cytokine genes and developing predictive models to anticipate the risk of developing graft-versus-host disease (GVHD), transplantation-related mortality (TRM), relapse and overall survival (OS)., Methods: Our group developed a 132-cytokine gene panel which was tested in 90 patients who underwent an HLA-identical sibling-donor allo-HSCT. Bayesian logistic regression (BLR) models were used to select the most relevant variables. Based on the cut-off points selected for each model, patients were classified as being at high or low-risk for each of the post-transplant complications (aGVHD II-IV, aGVHD III-IV, cGVHD, mod-sev cGVHD, TRM, relapse and OS)., Results: A total of 737 polymorphisms were selected from the custom panel genes. Of these, 41 polymorphisms were included in the predictive models in 30 cytokine genes were selected (17 interleukins and 13 chemokines). Of these polymorphisms, 5 (12.2%) were located in coding regions, and 36 (87.8%) in non-coding regions. All models had a statistical significance of p<0.0001., Conclusion: Overall, genomic polymorphisms in cytokine genes make it possible to anticipate the development all complications studied following allo-HSCT and, consequently, to optimize the clinical management of patients., Competing Interests: The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest., (Copyright © 2024 Muñiz, Martínez-García, Bailén, Chicano, Oarbeascoa, Triviño, de la Iglesia-San Sebastian, Fernández de Córdoba, Anguita, Kwon, Díez-Martín, Olmos, Martínez-Laperche and Buño.)
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- 2024
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39. RANKL, but Not R-Spondins, Is Involved in Vascular Smooth Muscle Cell Calcification through LGR4 Interaction.
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Fernández-Villabrille S, Martín-Vírgala J, Martín-Carro B, Baena-Huerta F, González-García N, Gil-Peña H, Rodríguez-García M, Fernández-Gómez JM, Fernández-Martín JL, Alonso-Montes C, Naves-Díaz M, Carrillo-López N, and Panizo S
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- Animals, Rats, Humans, Male, Myocytes, Smooth Muscle metabolism, Myocytes, Smooth Muscle pathology, Osteoprotegerin metabolism, Osteoprotegerin genetics, Parathyroid Hormone metabolism, Cells, Cultured, Rats, Sprague-Dawley, RANK Ligand metabolism, RANK Ligand genetics, Receptors, G-Protein-Coupled metabolism, Receptors, G-Protein-Coupled genetics, Vascular Calcification metabolism, Vascular Calcification pathology, Muscle, Smooth, Vascular metabolism, Muscle, Smooth, Vascular pathology
- Abstract
Vascular calcification has a global health impact that is closely linked to bone loss. The Receptor Activator of Nuclear Factor Kappa B (RANK)/RANK ligand (RANKL)/osteoprotegerin (OPG) system, fundamental for bone metabolism, also plays an important role in vascular calcification. The Leucine-rich repeat-containing G-protein-coupled receptor 4 (LGR4), a novel receptor for RANKL, regulates bone remodeling, and it appears to be involved in vascular calcification. Besides RANKL, LGR4 interacts with R-spondins (RSPOs), which are known for their roles in bone but are less understood in vascular calcification. Studies were conducted in rats with chronic renal failure fed normal or high phosphorus diets for 18 weeks, with and without control of circulating parathormone (PTH) levels, resulting in different degrees of aortic calcification. Additionally, vascular smooth muscle cells (VSMCs) were cultured under non-calcifying (1 mM phosphate) and calcifying (3 mM phosphate) media with different concentrations of PTH. To explore the role of RANKL in VSMC calcification, increasing concentrations of soluble RANKL were added to non-calcifying and calcifying media. The effects mediated by RANKL binding to its receptor LGR4 were investigated by silencing the LGR4 receptor in VSMCs. Furthermore, the gene expression of the RANK/RANKL/OPG system and the ligands of LGR4 was assessed in human epigastric arteries obtained from kidney transplant recipients with calcification scores (Kauppila Index). Increased aortic calcium in rats coincided with elevated systolic blood pressure, upregulated Lgr4 and Rankl gene expression, downregulated Opg gene expression, and higher serum RANKL/OPG ratio without changes in Rspos gene expression. Elevated phosphate in vitro increased calcium content and expression of Rankl and Lgr4 while reducing Opg . Elevated PTH in the presence of high phosphate exacerbated the increase in calcium content. No changes in Rspos were observed under the conditions employed. The addition of soluble RANKL to VSMCs induced genotypic differentiation and calcification, partly prevented by LGR4 silencing. In the epigastric arteries of individuals presenting vascular calcification, the gene expression of RANKL was higher. While RSPOs show minimal impact on VSMC calcification, RANKL, interacting with LGR4, drives osteogenic differentiation in VSMCs, unveiling a novel mechanism beyond RANKL-RANK binding.
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- 2024
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40. Advantages of high cell concentration prior to cryopreservation of initial leukapheresis in CAR-T cell therapy.
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Carbonell D, Monsalvo S, Catalá E, Pérez-Corral A, Villegas C, Falero C, Ruano G, Martinez M, Kwon M, Muñoz-Martínez C, Díez-Martín JL, Gayoso J, and Anguita J
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- Humans, Female, Male, Precursor Cell Lymphoblastic Leukemia-Lymphoma therapy, Adult, Middle Aged, Receptors, Chimeric Antigen, Aged, T-Lymphocytes cytology, Leukapheresis methods, Cryopreservation methods, Immunotherapy, Adoptive methods, Immunotherapy, Adoptive economics
- Abstract
Background: Chimeric antigen receptor (CAR) T-cell therapy is increasingly used in patients affected by B-cell lymphoma and acute lymphoblastic leukemia. For logistical reasons, initial apheresis products may be cryopreserved for shipment to manufacturing centers. Due to the characteristics of these patients, cells are often collected in large volumes, meaning more bags must be cryopreserved. This requires increased storage, time and monetary costs. In this context, we aimed to evaluate a high cell concentration cryopreservation protocol by centrifugation to standardize the initial CAR-T manufacturing procedure., Materials and Methods: Sixty-eight processes of leukapheresis of 57 patients affected by refractory/relapsed B cell lymphoma and 9 patients affected by acute lymphoblastic leukemia who were eligible for anti-CD19 CAR-T cell treatment performed between June 2019 and October 2022 were analyzed. Whole blood count, percentage and number of T cells were assessed on the apheresis final product. The apheresis product, which was alternatively stored overnight at 4°C, was centrifuged, adjusting the volume to approximately 40 mL. The product was immediately cryopreserved to achieve a final cell concentration of 50-200×10
6 cells/ml for cryopreservation., Results: Leukapheresis volume was reduced by almost fivefold (median: 185 to 40 mL), resulting in a higher product concentration in one bag. In addition, the number of non-target cells (monocytes, platelets and erythrocytes) was also reduced during the development of CAR-T cell therapy, thereby maintaining T lymphocyte levels and providing a purer starting material., Discussion: The advantages of the protocol include reducing economic costs, saving storage space, simplifying the manufacturing process, and facilitating shipping logistics. In conclusion, we present a validated, simple, and cost-effective cell enrichment processing protocol that provides high-quality cryopreserved products as starting material for the CAR-T cell manufacturing process.- Published
- 2024
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41. Clinical features and disease progression of elderly patients at the ICU setting.
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Rodríguez-García R, González-Lamuño L, Santullano M, Martín-Carro B, Fernández-Martín JL, Cienfuegos Basanta MDC, Forcelledo L, and Palomo Antequera C
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- Humans, Aged, 80 and over, Retrospective Studies, Male, Female, Length of Stay statistics & numerical data, Respiration, Artificial statistics & numerical data, Cardiac Surgical Procedures, Hospital Mortality, Age Factors, Pneumonia epidemiology, Pneumonia mortality, Comorbidity, Spain epidemiology, Intensive Care Units statistics & numerical data, Disease Progression
- Abstract
Objective: To describe and characterize a cohort of octogenarian patients admitted to the ICU of the University Central Hospital of Asturias (HUCA)., Design: Retrospective, observational and descriptive study of 14 months' duration., Setting: Cardiac and Medical intensive care units (ICU) of the HUCA (Oviedo)., Participants: Patients over 80 years old who were admitted to the ICU for more than 24 h., Interventions: None., Main Variables of Interest: Age, sex, comorbidity, functional dependence, treatment, complications, evolution, mortality., Results: The most frequent reasons for admission were cardiac surgery and pneumonia. The average admission stay was significantly longer in patients under 85 years of age (p = 0,037). 84,3% of the latter benefited from invasive mechanical ventilation compared to 46,2% of older patients (p = <0,001). Patients over 85 years of age presented greater fragility. Admission for cardiac surgery was associated with a lower risk of mortality (HR = 0,18; 95% CI (0,062-0,527; p = 0,002)., Conclusions: The results have shown an association between the reason for admission to the ICU and the risk of mortality in octogenarian patients. Cardiac surgery was associated with a better prognosis compared to medical pathology, where pneumonia was associated with a higher risk of mortality. Furthermore, a significant positive association was observed between age and frailty., (Copyright © 2024 Elsevier España, S.L.U. and SEMICYUC. All rights reserved.)
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- 2024
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42. Serum phosphate is associated with increased risk of bone fragility fractures in haemodialysis patients.
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Barrera-Baena P, Rodríguez-García M, Rodríguez-Rubio E, González-Llorente L, Ortiz A, Zoccali C, Locatelli F, Floege J, Cohen-Solal M, Ferreira MA, Ketteler M, London GM, Gorriz-Teruel JL, Sánchez-Álvarez E, Hevia-Suárez MÁ, Fernández-Gómez JM, Martín-Carro B, Gómez-Alonso C, Alonso-Montes C, Cannata-Andía JB, and Fernández-Martín JL
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- Humans, Male, Female, Aged, Prospective Studies, Risk Factors, Middle Aged, Follow-Up Studies, Prognosis, Bone Density, Kidney Failure, Chronic therapy, Kidney Failure, Chronic blood, Kidney Failure, Chronic complications, Calcium blood, Renal Dialysis adverse effects, Phosphates blood, Fractures, Bone blood, Fractures, Bone etiology, Fractures, Bone epidemiology
- Abstract
Background: Bone fragility fractures are associated with high morbidity and mortality. This study analysed the association between the current biochemical parameters of chronic kidney disease-mineral and bone disorders (CKD-MBD) and bone fragility fractures in the COSMOS (Current management Of Secondary hyperparathyroidism: a Multicentre Observational Study) project., Methods: COSMOS is a 3-year, multicentre, open cohort, prospective, observational study carried out in 6797 haemodialysis patients (227 centres from 20 European countries). The association of bone fragility fractures (outcome) with serum calcium, phosphate and parathyroid hormone (PTH) (exposure), was assessed using standard Cox proportional hazards regression and Cox proportional hazards regression for recurrent events. Additional analyses were performed considering all-cause mortality as a competitive event for bone fragility fracture occurrence. Multivariable models were used in all strategies, with the fully adjusted model including a total of 24 variables., Results: During a median follow-up of 24 months, 252 (4%) patients experienced at least one bone fragility fracture (incident bone fragility fracture rate 28.5 per 1000 patient-years). In the fractured and non-fractured patients, the percentage of men was 43.7% and 61.4%, mean age 68.1 and 63.8 years and a haemodialysis vintage of 55.9 and 38.3 months, respectively. Baseline serum phosphate >6.1 mg/dL (reference value 4.3-6.1 mg/dL) was significantly associated with a higher bone fragility fracture risk in both regression models {hazard ratio (HR) 1.53 [95% confidence interval (CI) 1.10-2.13] and HR 1.44 (95% CI 1.02-2.05)}. The significant association persisted after competitive risk analysis [subHR 1.42 (95% CI 1.02-1.98)] but the finding was not confirmed when serum phosphate was considered as a continuous variable. Baseline serum calcium showed no association with bone fragility fracture risk in any regression model. Baseline serum PTH >800 pg/mL was significantly associated with a higher bone fragility fracture risk in both regression models, but the association disappeared after a competitive risk analysis., Conclusions: Hyperphosphatemia was independently and consistently associated with an increased bone fracture risk, suggesting serum phosphate could be a novel risk factor for bone fractures in haemodialysis patients., (© The Author(s) 2023. Published by Oxford University Press on behalf of the ERA.)
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- 2024
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43. " I'm Not Only a Body ": Change in Thoughts about the Body after Mirror Exposure Treatment in Women with Obesity-An Exploratory Study.
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González-Sánchez C, Jiménez-Cabello J, Rodríguez-Ruíz S, and Mata-Martín JL
- Abstract
Nowadays, obesity (OB) is one of the most important health problems in population-wide health. In addition to its physical consequences, it is a risk factor for the development of psychological problems, including body dissatisfaction (BD). This is why the treatment of BD is essential for its prevention. However, this has mostly been studied from a quantitative perspective, without focusing on the discomfort experienced by the person and the accompanying thoughts and emotions. In this study, 26 women with obesity (BMI > 30 kg/m
2 ) participated, of whom 16 had high BD and 10 had low BD, as measured by the BSQ questionnaire. The women with high BD underwent six sessions of exposure to their own body in front of a mirror, recording the discomfort experienced with this vision during the session. In addition, all participants recorded positive and negative thoughts towards their body before and after these sessions. After the exposure treatment sessions, a reduction in symptomatology (BD, discomfort when visualizing one's own body) was observed, as well as a change in the thoughts expressed by the participants, both in quantity (fewer negative thoughts) and in quality (a more positive self-perception and/or in more respectful terms used towards themselves). In conclusion, such treatments prove to be effective in reducing subjective discomfort and body-related thoughts in women with obesity.- Published
- 2024
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44. Digital PCR Improves Sensitivity and Quantification in Monitoring CAR-T Cells in B Cell Lymphoma Patients.
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de la Iglesia-San Sebastián I, Carbonell D, Bastos-Oreiro M, Pérez-Corral A, Bailén R, Chicano M, Muñiz P, Monsalvo S, Escudero-Fernández A, Oarbeascoa G, Fernández-Caldas P, Gómez-Centurión I, Pion M, Gayoso J, Anguita J, Kwon M, Díez-Martín JL, Buño I, and Martínez-Laperche C
- Subjects
- Humans, Immunotherapy, Adoptive adverse effects, T-Lymphocytes, Polymerase Chain Reaction, Receptors, Chimeric Antigen genetics, Lymphoma, B-Cell etiology
- Abstract
Chimeric antigen receptor T cells (CAR-T) has emerged as a promising therapy, over 60% of patients fail to sustain a long-term response. The underlying factors that leads to the effectiveness of this therapy are not completely understood, CAR-T cell persistence and monitoring seems to be pivotal for ensuring a successful response. Various monitoring methods such as multiparametric flow cytometry (MFC) or quantitative PCR (qPCR) have been applied. Our objective is to develop digital PCR (dPCR) assays for detection and quantification of CAR-T cells, comparing them with MFC and qPCR. Samples taken at different follow-up times from 45 patients treated with CAR-T therapy were analyzed to assess the correlation between the different methodologies. dPCR presented a high correlation with MFC and qPCR (r = 0.97 and r = 0.87, respectively), while offering a higher sensitivity (0.01%) compared to MFC (0.1%) and qPCR (1%). dPCR emerged as an alternative and highly sensitivity method for monitoring CAR-T cell dynamics. This technique is well-suited for implementation in clinical practice as a complementary technique to MFC., (Copyright © 2024 The American Society for Transplantation and Cellular Therapy. Published by Elsevier Inc. All rights reserved.)
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- 2024
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45. Novel Biomarkers of Bone Metabolism.
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Fernández-Villabrille S, Martín-Carro B, Martín-Vírgala J, Rodríguez-Santamaria MDM, Baena-Huerta F, Muñoz-Castañeda JR, Fernández-Martín JL, Alonso-Montes C, Naves-Díaz M, Carrillo-López N, and Panizo S
- Subjects
- Humans, Bone Density physiology, Biomarkers, Minerals, Chronic Kidney Disease-Mineral and Bone Disorder complications, Osteoporosis etiology, Renal Insufficiency, Chronic complications, Fractures, Bone etiology, Vascular Calcification complications
- Abstract
Bone represents a metabolically active tissue subject to continuous remodeling orchestrated by the dynamic interplay between osteoblasts and osteoclasts. These cellular processes are modulated by a complex interplay of biochemical and mechanical factors, which are instrumental in assessing bone remodeling. This comprehensive evaluation aids in detecting disorders arising from imbalances between bone formation and reabsorption. Osteoporosis, characterized by a reduction in bone mass and strength leading to heightened bone fragility and susceptibility to fractures, is one of the more prevalent chronic diseases. Some epidemiological studies, especially in patients with chronic kidney disease (CKD), have identified an association between osteoporosis and vascular calcification. Notably, low bone mineral density has been linked to an increased incidence of aortic calcification, with shared molecules, mechanisms, and pathways between the two processes. Certain molecules emerging from these shared pathways can serve as biomarkers for bone and mineral metabolism. Detecting and evaluating these alterations early is crucial, requiring the identification of biomarkers that are reliable for early intervention. While traditional biomarkers for bone remodeling and vascular calcification exist, they suffer from limitations such as low specificity, low sensitivity, and conflicting results across studies. In response, efforts are underway to explore new, more specific biomarkers that can detect alterations at earlier stages. The aim of this review is to comprehensively examine some of the emerging biomarkers in mineral metabolism and their correlation with bone mineral density, fracture risk, and vascular calcification as well as their potential use in clinical practice.
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- 2024
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46. Soluble Klotho, a Potential Biomarker of Chronic Kidney Disease-Mineral Bone Disorders Involved in Healthy Ageing: Lights and Shadows.
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Martín-Vírgala J, Martín-Carro B, Fernández-Villabrille S, Ruiz-Torres MP, Gómez-Alonso C, Rodríguez-García M, Fernández-Martín JL, Alonso-Montes C, Panizo S, Cannata-Andía JB, Naves-Díaz M, and Carrillo-López N
- Subjects
- Humans, Biomarkers, Fibroblast Growth Factors, Glucuronidase, Minerals, Renal Insufficiency, Chronic complications, Chronic Kidney Disease-Mineral and Bone Disorder diagnosis, Healthy Aging metabolism, Klotho Proteins blood, Klotho Proteins metabolism
- Abstract
Shortly after the discovery of Klotho, interest grew in its potential role in chronic kidney disease (CKD). There are three isoforms of the Klotho protein: αKlotho, βKlotho and γKlotho. This review will focus on αKlotho due to its relevance as a biomarker in CKD. αKlotho is synthesized mainly in the kidneys, but it can be released into the bloodstream and urine as soluble Klotho (sKlotho), which undertakes systemic actions, independently or in combination with FGF23. It is usually accepted that sKlotho levels are reduced early in CKD and that lower levels of sKlotho might be associated with the main chronic kidney disease-mineral bone disorders (CKD-MBDs): cardiovascular and bone disease. However, as results are inconsistent, the applicability of sKlotho as a CKD-MBD biomarker is still a matter of controversy. Much of the inconsistency can be explained due to low sample numbers, the low quality of clinical studies, the lack of standardized assays to assess sKlotho and a lack of consensus on sample processing, especially in urine. In recent decades, because of our longer life expectancies, the prevalence of accelerated-ageing diseases, such as CKD, has increased. Exercise, social interaction and caloric restriction are considered key factors for healthy ageing. While exercise and social interaction seem to be related to higher serum sKlotho levels, it is not clear whether serum sKlotho might be influenced by caloric restriction. This review focuses on the possible role of sKlotho as a biomarker in CKD-MBD, highlighting the difference between solid knowledge and areas requiring further research, including the role of sKlotho in healthy ageing.
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- 2024
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47. Post-Transplantation Cyclophosphamide-Based Graft-versus-Host Disease Prophylaxis in HLA-Matched and Haploidentical Donor Transplantation for Patients with Hodgkin Lymphoma: A Comparative Study of the Lymphoma Working Party of the European Society for Blood and Marrow Transplantation.
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Montoro J, Boumendil A, Finel H, Bramanti S, Castagna L, Blaise D, Dominietto A, Kulagin A, Yakoub-Agha I, Tbakhi A, Solano C, Giebel S, Gulbas Z, López Corral L, Pérez-Simón JA, Díez Martín JL, Sanz J, Farina L, Koc Y, Socié G, Arat M, Jurado M, Bermudez A, Labussière-Wallet H, Villalba M, Ciceri F, Martinez C, Nagler A, Sureda A, and Glass B
- Subjects
- Humans, Retrospective Studies, Bone Marrow, Neoplasm Recurrence, Local complications, Cyclophosphamide therapeutic use, Unrelated Donors, Hodgkin Disease drug therapy, Lymphoma complications, Lymphoma drug therapy, Graft vs Host Disease prevention & control
- Abstract
Post-transplantation cyclophosphamide (PTCy) has emerged as a promising approach for preventing graft-versus-host disease (GVHD) in allogeneic hematopoietic stem cell transplantation (allo-HSCT). However, there is a lack of studies examining the impact of this GVHD prophylaxis when different donor types are used in patients with Hodgkin lymphoma (HL). This study compared the outcomes of patients with HL undergoing HSCT from HLA-matched donors, including matched sibling donors (MSDs) and matched unrelated donors (MUDs), and haploidentical donors, using PTCy as the GVHD prophylaxis approach in all cohorts. We retrospectively compared outcomes of allo-HSCT from 166 HLA-matched donors (96 sibling and 70 unrelated donors) and 694 haploidentical donors using PTCy-based GVHD prophylaxis in patients with HL registered in the European Society for Blood and Marrow Transplantation database from 2010 to 2020. Compared to HLA-matched HSCT, haploidentical donor HSCT was associated with a significantly lower rate of platelet engraftment (86% versus 94%; P < .001) and a higher rate of grade II-IV acute GVHD (34% versus 24%; P = .01). The 2-year cumulative incidence of nonrelapse mortality (NRM) was significantly lower in the HLA-matched cohort compared to the haploidentical cohort (10% versus 18%; P = .02), resulting in a higher overall survival (OS) rate (82% versus 70%; P = .002). There were no significant differences between the 2 cohorts in terms of relapse, progression-free survival, or GVHD-free relapse-free survival. In multivariable analysis, haploidentical HSCT was associated with an increased risk of grade II-IV acute GVHD and NRM and worse OS compared to HLA-matched HSCT. Our findings suggest that in the context of PTCy-based GVHD prophylaxis, transplantation from HLA-matched donors appears to be a more favorable option compared to haploidentical HSCT., (Copyright © 2023 The American Society for Transplantation and Cellular Therapy. Published by Elsevier Inc. All rights reserved.)
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- 2024
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48. Switching from subcutaneous to oral semaglutide in type 2 diabetes: A prospective study.
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Martínez-Montoro JI, Picón-César MJ, Generoso-Piñar M, Fernández-Valero A, López-Montalbán Á, Simón-Frapolli VJ, Hernández-Bayo J, Pinzón-Martín JL, and Tinahones FJ
- Subjects
- Humans, Prospective Studies, Hypoglycemic Agents therapeutic use, Glucagon-Like Peptides therapeutic use, Diabetes Mellitus, Type 2 complications, Diabetes Mellitus, Type 2 drug therapy
- Published
- 2024
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49. Stability, Mounting, and Measurement Considerations for High-Power GaN MMIC Amplifiers.
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González-Posadas V, Jiménez-Martín JL, Parra-Cerrada A, Espinosa Adams D, and Hernandez W
- Abstract
In this paper, the precise design of a high-power amplifier (HPA) is shown, along with the problems associated with the stability of "on-wafer" measurements. Here, techniques to predict possible oscillations are discussed to ensure the stability of a monolithic microwave-integrated circuit (MMIC). In addition, a deep reflection is made on the instabilities that occur when measuring both on wafer and using a mounted chip. Stability techniques are used as tools to characterize measurement results. Both a precise design and instabilities are shown through the design of a three-stage X-band HPA in gallium nitride (GaN) from the WIN Semiconductors Corp. foundry. As a result, satisfactory performance was obtained, achieving a maximum output power equal to 42 dBm and power-added efficiency of 32% at a 20 V drain bias. In addition to identifying critical points in the design or measurement of the HPA, this research shows that the stability of the amplifier can be verified through a simple analysis and that instabilities are often linked to errors in the measurement process or in the characterization of the measurement process.
- Published
- 2023
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50. Temperature variation in caves and its significance for subterranean ecosystems.
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Medina MJ, Antić D, Borges PAV, Borko Š, Fišer C, Lauritzen SE, Martín JL, Oromí P, Pavlek M, Premate E, Puliafico KP, Sendra A, and Reboleira ASPS
- Subjects
- Animals, Humans, Temperature, Biota, Endangered Species, Ecosystem, Caves
- Abstract
Climate change affects all ecosystems, but subterranean ecosystems are repeatedly neglected from political and public agendas. Cave habitats are home to unknown and endangered species, with low trait variability and intrinsic vulnerability to recover from human-induced disturbances. We studied the annual variability and cyclicity of temperatures in caves vis-à-vis surface in different climatic areas. We hypothesize that cave temperatures follow the average temperature pattern at the surface for each location with a slight delay in the signal, but we found three different thermal patterns occurring in caves: (1) high positive correlation and a similar thermal pattern to the surface, (2) low correlation and a slight thermal delay of the signal from the surface, and (3) high negative correlation with an extreme delay from the surface. We found daily thermal cycles in some caves, which may potentially control the circadian rhythms of cave organisms. Our results show that caves had lower thermal amplitude than the surface, and that thermal averages within caves approximately correspond to the to the annual average of surface temperature. Caves buffer external temperature and act as refugia for biota in extreme climatic events. Likewise, temperature increases at surface will lead to increment in caves, threatening subterranean biota and ecosystem services., (© 2023. The Author(s).)
- Published
- 2023
- Full Text
- View/download PDF
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