13 results on '"M. A. Sierra"'
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2. 21410. MIOPATÍA DISTAL POR DESMINOPATÍA: NUEVA VARIANTE PATOGÉNICA
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M. Vicente Domínguez, M. Afkir Ortega, P. Hernández Vitorique, P. Carbonell Corvillo, and M. Máñez Sierra
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Neurology. Diseases of the nervous system ,RC346-429 - Published
- 2024
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3. 20204. MIOPATÍA DISTAL DE LAING (MPD1). UN CASO CLÍNICO
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M. Afkir Ortega, M. Máñez Sierra, F. Pinel Ríos, M. Carbonell Corvillo, and C. Ortega Hiraldo
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Neurology. Diseases of the nervous system ,RC346-429 - Published
- 2024
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4. 20854. NEUROMIELITIS ÓPTICA ASOCIADA A ANTICUERPOS AQP4 DE ORIGEN PARANEOPLÁSICO, A PROPÓSITO DE UN CASO
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C. Ortega Hiraldo, M. Máñez Sierra, M. Afkir Ortega, A. Gómez González, and T. Sanjuán Pérez
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Neurology. Diseases of the nervous system ,RC346-429 - Published
- 2024
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5. Systemic sclerosis with morphea-like plaques histopathologically mimicking cutaneous B-cell lymphoma
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Ana M. Aragon Sierra, BS, Angelina S. Hwang, BS, Jacob Kechter, BS, Aaron R. Mangold, MD, Vivek Nagaraja, MD, and David J. DiCaudo, MD
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autoimmune disease ,B-cell lymphoma ,morphea ,pseudolymphoma ,scleroderma ,systemic sclerosis ,Dermatology ,RL1-803 - Published
- 2024
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6. Multiprotease improves amino acid release in vitro, energy, and nutrient utilization in broilers fed diets varying in crude protein levels
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Lina M. Peñuela-Sierra, Valmiro L. Aragão-Neto, Paula Lozano-Cruz, Juan Nicolas Mejia-Abaunza, Muhammad Ali, Joaquin Cabañas-Ojeda, Yanlin Yang, Maria Camila Alfaro-Wisaquillo, Gustavo A. Quintana-Ospina, Bindhu Lakshmibai Vasanthakumari, Alexandra Wealleans, Ye Lao, and Edgar O. Oviedo-Rondón
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low crude protein ,broiler ,exogenous multiprotease ,AA digestibility ,AMEn ,Animal culture ,SF1-1100 - Abstract
ABSTRACT: Low crude protein (CP) diets can reduce nitrogen (N) excretion and costs by increasing N utilization efficiency. Exogenous proteases may further improve protein digestibility in low CP diets. This study first evaluated in vitro the efficacy of a multiprotease on amino acid (AA) release from feedstuffs and broiler feed. Later, a broiler study evaluated the effect of feeding corn-soybean meal diets containing 3 CP levels (17, 19, and 21% CP) with supplementation on top of 0 or 2,400 U/kg multiprotease on chicken growth performance, total tract CP, and ileal AA digestibilities, and energy utilization. Ross 708 male chickens were placed in 42 cages and assigned to 6 treatments resulting from a 3 × 2 factorial arrangement. Three isocaloric basal diets were formulated to reduce CP, but all diets maintained digestible Lys:CP in 5.47% and the same ideal protein profile. Data were analyzed in a completely randomized design. On average, the multiprotease increased (P < 0.05) in vitro free AA release by 27.81% in most feedstuffs evaluated compared to the control. For broiler feed, 1,200 U/g multiprotease addition improved (P < 0.001) in vitro free AA release by 18.90%. This multiprotease showed interaction effects (P < 0.05) on chicken FCR, energy, and CP digestibility. As expected, BW at 24 d, BW gain, and FCR (8–24 d) worsened (P < 0.001) as dietary CP reduced from 21 to 17%, and multiprotease addition did not improve (P > 0.05) these parameters. BW gain decreased by 12.9% when N intake was reduced from 49.32 to 38.49 g/bird. Multiprotease supplementation improved (P < 0.01) AMEn by 71 kcal/kg, CP digestibility from 59.45 to 63.51%, ileal AA digestibility, and DM digestibility from 67.08 to 73.49%, but only in the 21% CP diet. No differences in ileal AA digestibility due to CP level (P > 0.05) were detected, except for Cys digestibility (P < 0.01). In conclusion, low CP diets reduced growth performance and improved N utilization but negatively affected energy utilization efficiency. Exogenous multiprotease supplementation improved AME, AMEn, protein, ileal AA, and DM digestibility in the 21% CP diet without significantly affecting growth performance.
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- 2024
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7. The development and validation of a nationwide dataset of water distribution zones in Aotearoa New Zealand: A cross-sectional geospatial study
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M. Puente-Sierra, T. Chambers, L. Marek, J.M. Broadbent, B. O'Brien, and M. Hobbs
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Drinking water ,GIS ,Geographic information systems ,Water distribution zones ,Geospatial ,Spatial ,Computer applications to medicine. Medical informatics ,R858-859.7 ,Science (General) ,Q1-390 - Abstract
The reliable supply of safe drinking water is vital for the health of human populations. Despite this, there is no consistent nationwide spatial dataset of water distribution zones (WDZ) for Aotearoa New Zealand (A-NZ). The purpose of this data article is to describe the development and validation of a consistent nationwide dataset of WDZ across A-NZ. We obtained spatial data from all 67 district and city councils through: 1) information requests between 2021 and 2023; 2) the Ministry of Health and; 3) the Institute of Environmental Science and Research. Data were modified to improve the spatial accuracy of the WDZ using auxiliary data on the building footprints (Land Information New Zealand) and the drinking water reticulation (WSP & councils). We estimated the population served by each WDZ through spatial linking to meshblock-level data provided by Statistics New Zealand (meshblocks are the smallest administrative geographic unit in A-NZ). The dataset will be useful to provide insights into the extent of the publicly-owned drinking water assets in A-NZ and is essential for the accurate exposure assessment in epidemiological research investigating the impact of drinking water quality on human health.
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- 2023
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8. Antimicrobial and antioxidant activity of proteins isolated from Melipona beecheii honey
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Jesús M. Ramón-Sierra, Marco A. Villanueva, Alejandro Yam-Puc, Martha Rodríguez-Mendiola, Carlos Arias-Castro, and Elizabeth Ortiz-Vázquez
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Antimicrobial activity ,Antioxidant activity ,Melipona beecheii honey proteins ,Concanavalin A-bound ,Major royal jelly protein ,Nutrition. Foods and food supply ,TX341-641 ,Food processing and manufacture ,TP368-456 - Abstract
Proteins from Melipona beecheii honey were purified by concanavalin A (conA) affinity chromatography and eluted with a stepwise glucose gradient into fractions named F2-F5. The conA-unbound fraction (F1) was further separated by molecular exclusion into fractions named MbF1-1,2 and MbF1-3. All fractions were evaluated for antibacterial activity against foodborne pathogens and antioxidant capacity. F1 fraction possessed highest antimicrobial activity against S. aureus, L. monocytogenes, S. Typhimurium, E. coli and P. aeruginosa with MIC’s 1.4 ± 0.2, 15 ± 1, 39 ± 2, 1 ± 0.1, and 75 ± 2 µg/mL, respectively. F1, MbF1-1,2 and MbF1-3 had bactericidal effect except against P. aeruginosa. When the antioxidant capacity of the fractions was determined, F2 had the highest antioxidant activity measured by DPPH radical scavenging activity (IC50 = 2.4 ± 0.4 µg/µL) and reducing power of Fe(III) (IC50 = 1.8 ± 0.2 µg/µL). We provide evidence that M. beecheii honey proteins possess broad spectrum antibacterial and antioxidant activity, the latter probably through their reducing agent and free radical scavenger properties.
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- 2022
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9. Vigilancia en salud pública: una necesidad inaplazable
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Isabel Noguer, Juan Pablo Alonso, José M. Arteagoitia, Jenaro Astray, Rosa Cano, Jesús de Pedro, Gonzalo Gutiérrez, Xurxo Hervada, Mario Margolles, Antonio Nicolau, Domingo Núñez, Marina Pollán, Julián Mauro Ramos, M. José Sierra, and Hermelinda Vanoclocha
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Public aspects of medicine ,RA1-1270 - Published
- 2017
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10. Enfermedades asociadas a flebovirus trasmitidos por flebótomos: ¿qué riesgo tenemos en España?
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Berta Suarez, Susana Monge, Fernando de Ory, Ricardo Molina, Lucía García San Miguel, Javier Lucientes, Jordi Figuerola, Fernando Simón, Beatriz Fernández-Martínez, Ana Vázquez, M. Paz Sanchez-Seco, and M. Jose Sierra
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0301 basic medicine ,Microbiology (medical) ,Phlebovirus ,030106 microbiology ,Flebótomos ,España ,Evaluación de riesgo ,03 medical and health sciences ,0302 clinical medicine ,Spain ,Phlebotomus ,Vector-borne disease ,Flebovirus ,030212 general & internal medicine ,Enfermedades vectoriales ,Risk assessment - Abstract
[ES] Los virus del género Phlebovirus, transmitidos por dípteros de la familia Psychodidae, son una causa de síndrome febril autolimitado durante el verano-otoño en los países mediterráneos. En el caso del virus Toscana, pueden ser causa de meningitis y meningoencefalitis. En España se ha detectado la presencia de los virus Toscana, Granada, Nápoles, Sicilia, Arbia y Arrabida-like. La presencia casi generalizada de vectores del género Phlebotomus, especialmente de Phlebotomus perniciosus, en los que se han detectado varios de estos virus, hace muy probable que aparezcan de manera regular infecciones en humanos en nuestro país, siendo este riesgo moderado para el virus Toscana y bajo para el resto, en las zonas con mayor actividad del vector. La mayor parte de las enfermedades pasarían inadvertidas y solo el virus Toscana puede tener un mayor impacto por la aparición de casos graves., [EN] The genera Phlebovirus transmitted by Diptera belonging to the Psychodidae family are a cause of self-limited febrile syndrome in the Mediterranean basin in summer and autumn. Toscana virus can also cause meningitis and meningoencephalitis. In Spain, Toscana, Granada, Naples, Sicily, Arbia and Arrabida-like viruses have been detected. The almost widespread distribution of Phlebotomus genus vectors, and especially Phlebotomus perniciosus, in which several of these viruses have been detected, makes it very likely that there will be regular human infections in our country, with this risk considered moderate for Toscana virus and low for the other ones, in areas with the highest vector activity. Most of the infections would be undiagnosed, while only Toscana virus would have a greater impact due to the potential severity of the illness.
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- 2020
11. Conservation Status of Killer Whales, Orcinus orca, in the Strait of Gibraltar
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Philippe Verborgh, D Alarcón, R. de Stephanis, Pauline Gauffier, Andrew D. Foote, Joan Giménez, J M Salazar-Sierra, and Ruth Esteban
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0106 biological sciences ,biology ,Ecology ,Whale ,010604 marine biology & hydrobiology ,Conservation Plan ,Endangered species ,biology.organism_classification ,010603 evolutionary biology ,01 natural sciences ,Predation ,Fishery ,Geography ,Mediterranean sea ,biology.animal ,Conservation status ,Tuna ,Thunnus - Abstract
Killer whales (Orcinus orca) in the Mediterranean Sea are currently restricted to the Strait of Gibraltar and surrounding waters. Thirty-nine individuals were present in 2011, with a well-differentiated social structure, organized into five pods. Killer whale occurrence in the Strait is apparently related to the migration of their main prey, Atlantic bluefin tuna (Thunnus thynnus). In spring, whale distribution was restricted to shallow waters off the western coast of the Strait where all pods were observed actively hunting tuna. In summer, the whales were observed in the shallow central waters of the Strait. A relatively new feeding strategy has been observed among two of the five pods. These two pods interact with an artisanal drop-line fishery. Pods depredating the fishery had access to larger tuna in comparison with pods that were actively hunting. The Strait of Gibraltar killer whales are socially and ecologically different from individuals in the Canary Islands. Molecular genetic research has indicated that there is little or no female-mediated gene migration between these areas. Conservation threats include small population size, prey depletion, vessel traffic, and contaminants. We propose the declaration of the Strait of Gibraltar killer whales as an endangered subpopulation. A conservation plan to protect the Strait of Gibraltar killer whales is urgently needed, and we recommend implementation of a seasonal management area where activities producing underwater noise are restricted, and the promotion of bluefin tuna conservation.
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- 2016
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12. African swine fever Expression of interleukin-1 alpha and tumour necrosis factor-alpha by pulmonary intravascular macrophages
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Alejandro Núñez, Librado Carrasco, Francisco J. Salguero, M. A. Sierra, José C. Gómez-Villamandos, F. Díaz San Segundo, and Pedro J. Sánchez-Cordón
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Male ,Pathology ,medicine.medical_specialty ,Necrosis ,Swine ,Virus ,Fibrin ,Pathology and Forensic Medicine ,Immunoenzyme Techniques ,Viral Proteins ,Macrophages, Alveolar ,medicine ,Animals ,African Swine Fever ,Lung ,General Veterinary ,biology ,Tumor Necrosis Factor-alpha ,Interleukin ,African Swine Fever Virus ,Microscopy, Electron ,medicine.anatomical_structure ,Viral replication ,Immunology ,Acute Disease ,biology.protein ,Immunohistochemistry ,Cytoplasmic Structures ,Female ,medicine.symptom ,Antibody ,Interleukin-1 - Abstract
To determine, in the acute form of African swine fever (ASF), the relationship between the appearance of pulmonary oedema and viral replication and expression of cytokines by pulmonary intravascular macrophages (PIMs), 14 pigs were inoculated intramuscularly with ASF virus (strain España'70) and killed in pairs on days 1-7 post-inoculation. Samples of lung were examined immunohistochemically and ultrastructurally. The immunohistochemical study was carried out with antibodies against interleukin-1 alpha (IL-1α), tumour necrosis factor-alpha (TNF-α), viral antigen of ASF (Vp73) and a myeloid marker (SWC3). Viral replication was observed mainly in PIMs, which at the same time showed intense activation, accompanied by the expression of IL-1α and TNF-α. The occurrence of interstitial oedema, neutrophil sequestration and fibrin microthrombi in septal capillaries coincided with high degrees of cytokine expression by infected PIMs. Alveolar macrophages did not show a significant change in cytokine expression as a result of ASF infection, and viral replication was detected in only a low percentage of these cells. © 2002 Elsevier Science Ltd.
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- 2002
13. APPLICATION OF AN OBJECT-ORIENTED EXPERT SYSTEM SHELL TO A FERMENTATION PROCESS
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Jose M. Giron-Sierra, Juan A. Gómez-Pulido, and B. Andres-Toro
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Object-oriented programming ,Class (computer programming) ,business.industry ,Computer science ,Process (engineering) ,Shell (computing) ,computer.software_genre ,Expert system ,Pilot plant ,Code (cryptography) ,Electronics ,Software engineering ,business ,computer - Abstract
Our research deals with the intelligent supervision and control of batch fermentation processes. We built a pilot plant, with all the auxiliar electronics needed, for a MS-DOS computer to interact with the plant. We selected KAPPA-PC as the main platform to develop a real-time application. It is an object-oriented development environment, with the tools to define and manage class hierarchies including sets of rules, for intelligent functions. The shell works under MS-Windows, and is open to user-developed specific C code. After some experimental modelling, we determined models, and defined intelligent classes to simulate the plant, to control the process, and to supervise it, in real-time.
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- 1995
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