49 research outputs found

    Oromia orahan (Curculionidae, Molytinae), a new subterranean species for the Canarian underground biodiversity

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    A new blind weevil belonging to the genus Oromia Alonso-Zarazaga, 1987 is described, being found in the underground of the laurel forest of La Gomera (Canary Islands). Individuals were mainly collected in a colluvial mesocavernous shallow substratum, besides one specimen collected in the deep humic layer of soil. This new species has clear diagnostic differences from the other Oromia species. The number of taxa in this endemic Canarian genus increases to four species, easily identified using the key provided in this article. New data on other Canarian subterranean weevils are also provided.We are grateful to David Hernández and Helena Morales for their help with sampling efforts. The English of this manuscript has been edited by Guido Jones, currently funded by the Cabildo de Tenerife, under the TFinnova Programme supported by MEDI and FDCAN funds. We acknowledge to Miguel Ángel Alonso-Zarazaga and Peter Hlaváč that helped to improve the paper with their constructive comments and suggestions, and to Garajonay National Park for the permits to study the invertebrate fauna along several years. This study was partly supported by the Spanish Ministry of Science (MINECO) (CGL2015-74178-JIN and CGL2017-85718-P).Peer reviewe

    Fear Detection in Multimodal affective computing: Physiological Signals versus Catecholamine Concentration

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    Affective computing through physiological signals monitoring is currently a hot topic in the scientific literature, but also in the industry. Many wearable devices are being developed for health or wellness tracking during daily life or sports activity. Likewise, other applications are being proposed for the early detection of risk situations involving sexual or violent aggressions, with the identification of panic or fear emotions. The use of other sources of information, such as video or audio signals will make multimodal affective computing a more powerful tool for emotion classification, improving the detection capability. There are other biological elements that have not been explored yet and that could provide additional information to better disentangle negative emotions, such as fear or panic. Catecholamines are hormones produced by the adrenal glands, two small glands located above the kidneys. These hormones are released in the body in response to physical or emotional stress. The main catecholamines, namely adrenaline, noradrenaline and dopamine have been analysed, as well as four physiological variables: skin temperature, electrodermal activity, blood volume pulse (to calculate heart rate activity. i.e., beats per minute) and respiration rate. This work presents a comparison of the results provided by the analysis of physiological signals in reference to catecholamine, from an experimental task with 21 female volunteers receiving audiovisual stimuli through an immersive environment in virtual reality. Artificial intelligence algorithms for fear classification with physiological variables and plasma catecholamine concentration levels have been proposed and tested. The best results have been obtained with the features extracted from the physiological variables. Adding catecholamine’s maximum variation during the five minutes after the video clip visualization, as well as adding the five measurements (1-min interval) of these levels, are not providing better performance in the classifiers.This research has been supported by the Madrid Governement (Comunidad de Madrid, Spain) under the ARTEMISA-UC3M-CM research project (reference 2020/00048/001), the EMPATIACM research project (reference Y2018/TCS-5046) and the Multiannual Agreement with UC3M in the line of Excellence of University Professors (EPUC3M26), and in the context of the V PRICIT (Regional Programme of Research and Technological Innovation)

    Liver Gene Therapy: Employing Surgery and Radiology for Translational Research

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    Gene therapy is a therapeutic strategy that aims to employ nucleic acids as drugs for the transient or permanent treatment of inherited or acquired pathologies. Based on the type of vector employed for the gene transfer, gene therapy can be classified as viral gene therapy and nonviral gene therapy. Nonviral gene therapy is less efficient but safer than viral gene therapy. Hydrodynamic naked DNA transfer has shown great translational potential, achieving therapeutic levels of a human protein in the murine model. The translational process of the procedure has already been performed. Different radiologic and surgical approaches permitted pressurizing the liver in vivo by excluding its vascularization partially or totally. These approaches mediated a tissue rate of human alpha-1-antitrypsin protein translation (100–1000 copies per cell) close to those obtained with the mouse gold standard model in a safe mode that could be translated to human settings

    Simultaneous Pancreas Kidney Transplantation Improves Cardiovascular Autonomic Neuropathy with Improved Valsalva Ratio as the Most Precocious Test

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    [EN] Background. Simultaneous pancreas-kidney (SPK) transplantation is a proven option of treatment for patients with type 1 diabetes mellitus (T1DM) and related end-stage renal disease. There is discrepancy between the results of different studies about the impact of prolonged normalization of glucose metabolism achieved by SPK on the course of diabetic complications including severe forms of diabetic neuropathy. The objective of the study was to evaluate the prevalence of cardiovascular autonomic neuropathy (CAN) in patients undergoing SPK transplantation and its evolution 10 years after transplantation. Methods. Prospective study of 81 patients transplanted in a single center from year 2002 to 2015. Autonomic function was assessed using cardiovascular autonomic reflex tests (CARTs). CARTs were made before SPK transplantation and during the follow-up. Evolution of tests after SPK transplantation was evaluated by contrasting hypotheses (paired tests). Multiple testing was adjusted with the Benjamini-Hochberg procedure with a false discovery rate of 10%. Results. 48 males and 33 females, mean age 37.4 +/- 5.7 years, mean BMI 24.0 +/- 3.4 kg/m2, and mean duration of diabetes 25.5 +/- 6.5 years, received SPK transplantation. Ten years after SPK transplantation, 56 patients re tained the pancreatic graft (42 of them with normofunctioning pancreas and 14 with low doses of insulin therapy). These 42 patients were selected for the autonomic study. Before transplant procedure, all CART results were abnormal. After SPK transplantation, paired test analysis showed an improvement of systolic blood pressure (SBP) response to orthostasis at the 5(th) year after SPK (p=0.03), as well as improvement of the Valsalva ratio at the 3(rd) (p<0.001) and 5(th) (p=0.001) year after SPK. After correcting for the false discovery rate, all the variables of autonomic study reached significance at different time points. Conclusions. Prevalence of CAN in patients who are candidates for SPK transplantation is high and is generally advanced. SPK transplantation improves CAN with improved Valsalva ratio as the most precocious test.Argente-Pla, M.; Pérez-Lázaro, A.; Martinez-Millana, A.; Del Olmo-García, MI.; Espí-Reig, J.; Beneyto-Castello, I.; López-Andújar, R.... (2020). Simultaneous Pancreas Kidney Transplantation Improves Cardiovascular Autonomic Neuropathy with Improved Valsalva Ratio as the Most Precocious Test. Journal of Diabetes Research. 2020:1-10. https://doi.org/10.1155/2020/7574628S1102020Freeman, R. (2014). Diabetic autonomic neuropathy. Handbook of Clinical Neurology, 63-79. doi:10.1016/b978-0-444-53480-4.00006-0Maser, R. E., Mitchell, B. D., Vinik, A. I., & Freeman, R. (2003). The Association Between Cardiovascular Autonomic Neuropathy and Mortality in Individuals With Diabetes: A meta-analysis. Diabetes Care, 26(6), 1895-1901. doi:10.2337/diacare.26.6.1895Dimitropoulos, G. (2014). Cardiac autonomic neuropathy in patients with diabetes mellitus. World J Diabetes, 5(1), 17. doi:10.4239/wjd.v5.i1.17Vinik, A. I., & Ziegler, D. (2007). Diabetic Cardiovascular Autonomic Neuropathy. Circulation, 115(3), 387-397. doi:10.1161/circulationaha.106.634949Kennedy, W. R., Navarro, X., & Sutherland, D. E. R. (1995). Neuropathy profile of diabetic patients in a pancreas transplantation program. Neurology, 45(4), 773-780. doi:10.1212/wnl.45.4.773Pop-Busui, R., Boulton, A. J. M., Feldman, E. L., Bril, V., Freeman, R., Malik, R. A., … Ziegler, D. (2016). Diabetic Neuropathy: A Position Statement by the American Diabetes Association. Diabetes Care, 40(1), 136-154. doi:10.2337/dc16-2042Balcıoğlu, A. S. (2015). Diabetes and cardiac autonomic neuropathy: Clinical manifestations, cardiovascular consequences, diagnosis and treatment. World Journal of Diabetes, 6(1), 80. doi:10.4239/wjd.v6.i1.80Pop-Busui, R., Low, P. A., Waberski, B. H., Martin, C. L., Albers, J. W., Feldman, E. L., … Herman, W. H. (2009). Effects of Prior Intensive Insulin Therapy on Cardiac Autonomic Nervous System Function in Type 1 Diabetes Mellitus. Circulation, 119(22), 2886-2893. doi:10.1161/circulationaha.108.837369Maser, R. E., Lenhard, J. M., & DeCherney, S. G. (2000). Cardiovascular Autonomic Neuropathy. The Endocrinologist, 10(1), 27-33. doi:10.1097/00019616-200010010-00006Vinik, A. I., Erbas, T., & Casellini, C. M. (2013). Diabetic cardiac autonomic neuropathy, inflammation and cardiovascular disease. Journal of Diabetes Investigation, 4(1), 4-18. doi:10.1111/jdi.12042Ewing, D. J., Campbell, I. W., Murray, A., Neilson, J. M., & Clarke, B. F. (1978). Immediate heart-rate response to standing: simple test for autonomic neuropathy in diabetes. BMJ, 1(6106), 145-147. doi:10.1136/bmj.1.6106.145In This Issue of Diabetes Care. (2019). Diabetes Care, 43(1), 1-2. doi:10.2337/dc20-ti01Gremizzi, C., Vergani, A., Paloschi, V., & Secchi, A. (2010). Impact of pancreas transplantation on type 1 diabetes-related complications. Current Opinion in Organ Transplantation, 15(1), 119-123. doi:10.1097/mot.0b013e32833552bcKennedy, W. R., Navarro, X., Goetz, F. C., Sutherland, D. E. R., & Najarian, J. S. (1990). Effects of Pancreatic Transplantation on Diabetic Neuropathy. New England Journal of Medicine, 322(15), 1031-1037. doi:10.1056/nejm199004123221503Bouček, P., Bartoš, V., Vaněk, I., Hýža, Z., & Skibová, J. (1991). Diabetic autonomic neuropathy after pancreas and kidney transplantation. Diabetologia, 34(S1), S121-S124. doi:10.1007/bf00587636Navarro, X., Sutherland, D. E. R., & Kennedy, W. R. (1997). Long-term effects of pancreatic transplantation on diabetic neuropathy. Annals of Neurology, 42(5), 727-736. doi:10.1002/ana.410420509Solders, G., Tyden, G., Persson, A., & Groth, C.-G. (1992). Improvement of Nerve Conduction in Diabetic Neuropathy: A Follow-up Study 4 Yr After Combined Pancreatic and Renal Transplantation. Diabetes, 41(8), 946-951. doi:10.2337/diab.41.8.946Argente-Pla, M., Martínez-Millana, A., Del Olmo-García, M. I., Espí-Reig, J., Pérez-Rojas, J., Traver-Salcedo, V., & Merino-Torres, J. F. (2019). Autoimmune Diabetes Recurrence After Pancreas Transplantation: Diagnosis, Management, and Literature Review. Annals of Transplantation, 24, 608-616. doi:10.12659/aot.920106Sundkvist, G., & Lilja, B. (1985). Autonomic Neuropathy in Diabetes Mellitus: A Follow-up Study. Diabetes Care, 8(2), 129-133. doi:10.2337/diacare.8.2.129Boulton, A. J. M., Vinik, A. I., Arezzo, J. C., Bril, V., Feldman, E. L., Freeman, R., … Ziegler, D. (2005). Diabetic Neuropathies: A statement by the American Diabetes Association. Diabetes Care, 28(4), 956-962. doi:10.2337/diacare.28.4.956Ewing, D. J., Martyn, C. N., Young, R. J., & Clarke, B. F. (1985). The Value of Cardiovascular Autonomic Function Tests: 10 Years Experience in Diabetes. Diabetes Care, 8(5), 491-498. doi:10.2337/diacare.8.5.491Spallone, V., Bellavere, F., Scionti, L., Maule, S., Quadri, R., Bax, G., … Morganti, R. (2011). Recommendations for the use of cardiovascular tests in diagnosing diabetic autonomic neuropathy☆. Nutrition, Metabolism and Cardiovascular Diseases, 21(1), 69-78. doi:10.1016/j.numecd.2010.07.005Agashe, S., & Petak, S. (2018). Cardiac Autonomic Neuropathy in Diabetes Mellitus. Methodist DeBakey Cardiovascular Journal, 14(4), 251. doi:10.14797/mdcj-14-4-251Valensi, P., Pariès, J., & Attali, J. . (2003). Cardiac autonomic neuropathy in diabetic patients: influence of diabetes duration, obesity, and microangiopathic complications—the french multicenter study. Metabolism, 52(7), 815-820. doi:10.1016/s0026-0495(03)00095-7Tesfaye, S., Boulton, A. J. M., Dyck, P. J., Freeman, R., Horowitz, M., … Kempler, P. (2010). Diabetic Neuropathies: Update on Definitions, Diagnostic Criteria, Estimation of Severity, and Treatments. Diabetes Care, 33(10), 2285-2293. doi:10.2337/dc10-1303Benjamini, Y., & Hochberg, Y. (1995). Controlling the False Discovery Rate: A Practical and Powerful Approach to Multiple Testing. Journal of the Royal Statistical Society: Series B (Methodological), 57(1), 289-300. doi:10.1111/j.2517-6161.1995.tb02031.xAdler, G. K., Bonyhay, I., Failing, H., Waring, E., Dotson, S., & Freeman, R. (2008). Antecedent Hypoglycemia Impairs Autonomic Cardiovascular Function: Implications for Rigorous Glycemic Control. Diabetes, 58(2), 360-366. doi:10.2337/db08-1153HATHAWAY, D. K., ABELL, T., CARDOSO, S., HARTWIG, M. S., GEBELY, S. E., & Gaber, A. O. (1994). IMPROVEMENT IN AUTONOMIC AND GASTRIC FUNCTION FOLLOWING PANCREAS-KIDNEY VERSUS KIDNEY-ALONE TRANSPLANTATION AND THE CORRELATION WITH QUALITY OF LIFE1,2. Transplantation, 57(6), 816-822. doi:10.1097/00007890-199403270-00008Arnold, R., Pussell, B. A., Pianta, T. J., Lin, C. S.-Y., Kiernan, M. C., & Krishnan, A. V. (2013). Association Between Calcineurin Inhibitor Treatment and Peripheral Nerve Dysfunction in Renal Transplant Recipients. American Journal of Transplantation, 13(9), 2426-2432. doi:10.1111/ajt.12324Vinik, A. I., Maser, R. E., Mitchell, B. D., & Freeman, R. (2003). Diabetic Autonomic Neuropathy. Diabetes Care, 26(5), 1553-1579. doi:10.2337/diacare.26.5.1553Suarez, G. A. (2005). Sudden cardiac death in diabetes mellitus: risk factors in the Rochester diabetic neuropathy study. Journal of Neurology, Neurosurgery & Psychiatry, 76(2), 240-245. doi:10.1136/jnnp.2004.039339Dinh, W., Füth, R., Lankisch, M., Bansemir, L., Nickl, W., Scheffold, T., … Ziegler, D. (2010). Cardiovascular autonomic neuropathy contributes to left ventricular diastolic dysfunction in subjects with Type 2 diabetes and impaired glucose tolerance undergoing coronary angiography. Diabetic Medicine, no-no. doi:10.1111/j.1464-5491.2010.03221.xWackers, F. J. T., Young, L. H., Inzucchi, S. E., Chyun, D. A., Davey, J. A., Barrett, E. J., … Iskandrian, A. E. (2004). Detection of Silent Myocardial Ischemia in Asymptomatic Diabetic Subjects: The DIAD study. Diabetes Care, 27(8), 1954-1961. doi:10.2337/diacare.27.8.1954Astrup, A. S., Tarnow, L., Rossing, P., Hansen, B. V., Hilsted, J., & Parving, H.-H. (2006). Cardiac Autonomic Neuropathy Predicts Cardiovascular Morbidity and Mortality in Type 1 Diabetic Patients With Diabetic Nephropathy. Diabetes Care, 29(2), 334-339. doi:10.2337/diacare.29.02.06.dc05-1242Pop-Busui, R., Evans, G. W., Gerstein, H. C., Fonseca, V., Fleg, J. L., … Hoogwerf, B. J. (2010). Effects of Cardiac Autonomic Dysfunction on Mortality Risk in the Action to Control Cardiovascular Risk in Diabetes (ACCORD) Trial. Diabetes Care, 33(7), 1578-1584. doi:10.2337/dc10-0125Kempler, P., Tesfaye, S., Chaturvedi, N., Stevens, L. K., Webb, D. J., … Eaton, S. (2002). Autonomic neuropathy is associated with increased cardiovascular risk factors: the EURODIAB IDDM Complications Study. Diabetic Medicine, 19(11), 900-909. doi:10.1046/j.1464-5491.2002.00821.xPop-Busui, R., Cleary, P. A., Braffett, B. H., Martin, C. L., Herman, W. H., Low, P. A., … Bluemke, D. A. (2013). Association Between Cardiovascular Autonomic Neuropathy and Left Ventricular Dysfunction. Journal of the American College of Cardiology, 61(4), 447-454. doi:10.1016/j.jacc.2012.10.02

    Programming Skeletal Muscle Metabolic Flexibility in Offspring of Male Rats in Response to Maternal Consumption of Slow Digesting Carbohydrates during Pregnancy

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    Skeletal muscle plays a relevant role in metabolic flexibility and fuel usage and the associated muscle metabolic inflexibility due to high-fat diets contributing to obesity and type 2 diabetes. Previous research from our group indicates that a high-fat and rapid-digesting carbohydrate diet during pregnancy promotes an excessive adipogenesis and also increases the risk of non-alcoholic fatty liver disease in the offspring. This effect can be counteracted by diets containing carbohydrates with similar glycemic load but lower digestion rates. To address the role of the skeletal muscle in these experimental settings, pregnant rats were fed high-fat diets containing carbohydrates with similar glycemic load but different digestion rates, a high fat containing rapid-digesting carbohydrates diet (HF/RD diet) or a high fat containing slow-digesting carbohydrates diet (HF/SD diet). After weaning, male offspring were fed a standard diet for 3 weeks (weaning) or 10 weeks (adolescence) and the impact of the maternal HF/RD and HF/SD diets on the metabolism, signaling pathways and muscle transcriptome was analyzed. The HF/SD offspring displayed better muscle features compared with the HF/RD group, showing a higher muscle mass, myosin content and differentiation markers that translated into a greater grip strength. In the HF/SD group, metabolic changes such as a higher expression of fatty acids (FAT/CD36) and glucose (GLUT4) transporters, an enhanced glycogen content, as well as changes in regulatory enzymes such as muscle pyruvate kinase and pyruvate dehydrogenase kinase 4 were found, supporting an increased muscle metabolic flexibility and improved muscle performance. The analysis of signaling pathways was consistent with a better insulin sensitivity in the muscle of the HF/SD group.This research was funded by European Union’s Seventh Framework Programme (FP7/2007–2013): project Early Nutrition, under grant agreement no. 289346

    Pharmacogenetics of Immunosuppressants in Solid Organ Transplantation: Time to Implement in the Clinic

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    Our aim in this chapter is to present the state of the art, including our own group research, in the field of immunosuppressant pharmacogenetics in the four main types of solid organ transplantation: kidney, heart, lung, and liver. The main focus will be on those findings in the field that have been widely investigated and then in those that are close to clinical implementation, mainly CYP3A5 genotyping for the adjustment of the initial tacrolimus dose. This recommendation will be discussed in more detail, explaining its clinical potential as well as its limitations. To end, a short opinion about the feasibility of implementation in the health systems as well as discussion about private companies selling pharmacogenetic tests will be presented

    Results of a survey on peri-operative nutritional support in pancreatic and biliary surgery in Spain

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    Introduction: a survey on peri-operative nutritional support in pancreatic and biliary surgery among Spanish hospitals in 2007 showed that few surgical groups followed the 2006 ESPEN guidelines. Ten years later we sent a questionnaire to check the current situation. Methods: a questionnaire with 21 items sent to 38 centers, related to fasting time before and after surgery, nutritional screening use and type, time and type of peri-operative nutritional support, and number of procedures. Results: thirty-four institutions responded. The median number of pancreatic resections (head/total) was 29.5 (95 % CI: 23.0-35; range, 5-68) (total, 1002); of surgeries for biliary malignancies (non-pancreatic), 9.8 (95 % CI: 7.3-12.4; range, 2-30); and of main biliary resections for benign conditions, 10.4 (95 % CI: 7.6-13.3; range, 2-33). Before surgery, only 41.2 % of the sites used nutritional support (< 50 % used any nutritional screening procedure). The mean duration of preoperative fasting for solid foods was 9.3 h (range, 6-24 h); it was 6.6 h for liquids (range, 2-12). Following pancreatic surgery, 29.4 % tried to use early oral feeding, but 88.2 % of the surveyed teams used some nutritional support; 26.5 % of respondents used TPN in 100 % of cases. Different percentages of TPN and EN were used in the other centers. In malignant biliary surgery, 22.6 % used TPN always, and EN in 19.3 % of cases. Conclusions: TPN is the commonest nutrition approach after pancreatic head surgery. Only 29.4 % of the units used early oral feeding, and 32.3 % used EN; 22.6 % used TPN regularly after surgery for malignant biliary tumours. The 2006 ESPEN guideline recommendations are not regularly followed 12 years after their publication in our country

    Pancreatic metastases from renal cell carcinoma. Postoperative outcome after surgical treatment in a Spanish multicenter study (PANMEKID)

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    Background: Renal Cell Carcinoma (RCC) occasionally spreads to the pancreas. The purpose of our study is to evaluate the short and long-term results of a multicenter series in order to determine the effect of surgical treatment on the prognosis of these patients. Methods: Multicenter retrospective study of patients undergoing surgery for RCC pancreatic metastases, from January 2010 to May 2020. Variables related to the primary tumor, demographics, clinical characteristics of metastasis, location in the pancreas, type of pancreatic resection performed and data on short and long-term evolution after pancreatic resection were collected. Results: The study included 116 patients. The mean time between nephrectomy and pancreatic metastases' resection was 87.35 months (ICR: 1.51-332.55). Distal pancreatectomy was the most performed technique employed (50 %). Postoperative morbidity was observed in 60.9 % of cases (Clavien-Dindo greater than IIIa in 14 %). The median follow-up time was 43 months (13-78). Overall survival (OS) rates at 1, 3, and 5 years were 96 %, 88 %, and 83 %, respectively. The disease-free survival (DFS) rate at 1, 3, and 5 years was 73 %, 49 %, and 35 %, respectively. Significant prognostic factors of relapse were a disease free interval of less than 10 years (2.05 [1.13-3.72], p 0.02) and a history of previous extrapancreatic metastasis (2.44 [1.22-4.86], p 0.01). Conclusions: Pancreatic resection if metastatic RCC is found in the pancreas is warranted to achieve higher overall survival and disease-free survival, even if extrapancreatic metastases were previously removed. The existence of intrapancreatic multifocal compromise does not always warrant the performance of a total pancreatectomy in order to improve survival. (C) 2021 The Authors. Published by Elsevier Ltd

    Resultados de una encuesta sobre el soporte nutricional perioperatorio en la cirugía pancreática y biliar en España

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    Introduction: a survey on peri-operative nutritional support in pancreatic and biliary surgery among Spanish hospitals in 2007 showed that few surgical groups followed the 2006 ESPEN guidelines. Ten years later we sent a questionnaire to check the current situation. Methods: a questionnaire with 21 items sent to 38 centers, related to fasting time before and after surgery, nutritional screening use and type, time and type of peri-operative nutritional support, and number of procedures. Results: thirty-four institutions responded. The median number of pancreatic resections (head/total) was 29.5 (95% CI: 23.0-35; range, 5-68) (total, 1002); of surgeries for biliary malignancies (non-pancreatic), 9.8 (95% CI: 7.3-12.4; range, 2-30); and of main biliary resections for benign conditions, 10.4 (95% CI: 7.6-13.3; range, 2-33). Before surgery, only 41.2% of the sites used nutritional support (&lt; 50% used any nutritional screening procedure). The mean duration of preoperative fasting for solid foods was 9.3 h (range, 6-24 h); it was 6.6 h for liquids (range, 2-12). Following pancreatic surgery, 29.4% tried to use early oral feeding, but 88.2% of the surveyed teams used some nutritional support; 26.5% of respondents used TPN in 100% of cases. Different percentages of TPN and EN were used in the other centers. In malignant biliary surgery, 22.6% used TPN always, and EN in 19.3% of cases. Conclusions: TPN is the commonest nutrition approach after pancreatic head surgery. Only 29.4% of the units used early oral feeding, and 32.3% used EN; 22.6% used TPN regularly after surgery for malignant biliary tumours. The 2006 ESPEN guideline recommendations are not regularly followed 12 years after their publication in our country.Introducción: realizamos una encuesta sobre soporte nutricional perioperatorio en cirugía pancreática y biliar en hospitales españoles en 2007, que mostró que pocos grupos quirúrgicos seguían las guías de ESPEN 2006. Diez años después enviamos un cuestionario para comprobar la situación actual. Métodos: treinta y ocho centros recibieron un cuestionario con 21 preguntas sobre tiempo de ayunas antes y después de la cirugía, cribado nutricional, duración y tipo de soporte nutricional perioperatorio, y número de procedimientos. Resultados: respondieron 34 grupos. La mediana de pancreatectomías (cabeza/total) fue de 29,5 (IC 95 %: 23,0-35; rango, 5-68) (total, 1002), la de cirugías biliares malignas de 9,8 (IC 95 %: 7,3-12,4; rango, 2-30) y la de resecciones biliares por patología benigna de 10,4 (IC 95 %: 7,6-13,3; rango, 2-33). Solo el 41,2 % de los grupos utilizaban soporte nutricional antes de la cirugía (< 50 % habian efectuado un cribado nutricional). El tiempo medio de ayuno preoperatorio para sólidos fue de 9,3 h (rango, 6-24 h), y de 6,6 h para líquidos (rango, 2-12). Tras la pancreatectomía, el 29,4 % habían intentado administrar una dieta oral precoz, pero el 88,2 % de los grupos usaron algún tipo de soporte nutricional y el 26,5 % usaron NP en el 100 % de los casos. Los demás grupos usaron diferentes porcentajes de NP y NE en sus casos. En la cirugía biliar maligna, el 22,6 % utilizaron NP siempre y NE en el 19,3 % de los casos. Conclusiones: la NP es el soporte nutricional más utilizado tras la cirugía de cabeza pancreática. Solo el 29,4 % de las unidades usan nutrición oral precoz y el 32,3 % emplean la NE tras este tipo de cirugía. El 22,6 % de las instituciones usan NP habitualmente tras la cirugía de tumores biliares malignos. Las guías ESPEN 2006 no se siguen de forma habitual en nuestro país tras más de 10 años desde su publicación

    Un sistema de evaluación por pares para los exámenes de Matemáticas y Econometría de los Grados en Economía y Administración y Dirección de Empresas

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    Los exámenes y pruebas de evaluación tienen un papel destacado dentro de los materiales docentes. Ello es así debido al doble papel que juegan: por una parte, son cruciales para evaluar el nivel de conocimientos adquiridos por los estudiantes; pero también orientan al estudiante sobre cómo preparar las asignaturas. Por tanto los exámenes son una herramienta fundamental en la docencia. Teniendo en mente esta consideración, el objetivo de este proyecto era doble: (a) obtener un análisis objetivo y cualificado de los exámenes y métodos de evaluación utilizados, así como (b) recoger sugerencias que permitan mejorar los procesos de evaluación de las asignaturas consideradas
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