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Chowdhury M, Martínez-Sansigre A, Mole M, Alonso-Peleato E, Basos N, Blanco JM, Ramirez-Nicolas M, Caballero I, de la Calle I. AI-driven remote sensing enhances Mediterranean seagrass monitoring and conservation to combat climate change and anthropogenic impacts. Sci Rep 2024; 14:8360. [PMID: 38600271 PMCID: PMC11006664 DOI: 10.1038/s41598-024-59091-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2023] [Accepted: 04/08/2024] [Indexed: 04/12/2024] Open
Abstract
Seagrasses are undergoing widespread loss due to anthropogenic pressure and climate change. Since 1960, the Mediterranean seascape lost 13-50% of the areal extent of its dominant and endemic seagrass-Posidonia oceanica, which regulates its ecosystem. Many conservation and restoration projects failed due to poor site selection and lack of long-term monitoring. Here, we present a fast and efficient operational approach based on a deep-learning artificial intelligence model using Sentinel-2 data to map the spatial extent of the meadows, enabling short and long-term monitoring, and identifying the impacts of natural and human-induced stressors and changes at different timescales. We apply ACOLITE atmospheric correction to the satellite data and use the output to train the model along with the ancillary data and therefore, map the extent of the meadows. We apply noise-removing filters to enhance the map quality. We obtain 74-92% of overall accuracy, 72-91% of user's accuracy, and 81-92% of producer's accuracy, where high accuracies are observed at 0-25 m depth. Our model is easily adaptable to other regions and can produce maps in in-situ data-scarce regions, providing a first-hand overview. Our approach can be a support to the Mediterranean Posidonia Network, which brings together different stakeholders such as authorities, scientists, international environmental organizations, professionals including yachting agents and marinas from the Mediterranean countries to protect all P. oceanica meadows in the Mediterranean Sea by 2030 and increase each country's capability to protect these meadows by providing accurate and up-to-date maps to prevent its future degradation.
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Affiliation(s)
- Masuma Chowdhury
- Quasar Science Resources, S. L. Camino de las Ceudas 2, 28232, Las Rozas de Madrid, Madrid, Spain.
- Departamento de Física Aplicada, Instituto Universitario de Investigación Marina (INMAR), Universidad de Cádiz, Campus de Excelencia Internacional/Global del Mar (CEI·MAR), Puerto Real, Cadiz, Spain.
| | - Alejo Martínez-Sansigre
- Quasar Science Resources, S. L. Camino de las Ceudas 2, 28232, Las Rozas de Madrid, Madrid, Spain
| | - Maruška Mole
- Quasar Science Resources, S. L. Camino de las Ceudas 2, 28232, Las Rozas de Madrid, Madrid, Spain
| | - Eduardo Alonso-Peleato
- Quasar Science Resources, S. L. Camino de las Ceudas 2, 28232, Las Rozas de Madrid, Madrid, Spain
| | - Nadiia Basos
- Quasar Science Resources, S. L. Camino de las Ceudas 2, 28232, Las Rozas de Madrid, Madrid, Spain
| | - Jose Manuel Blanco
- Quasar Science Resources, S. L. Camino de las Ceudas 2, 28232, Las Rozas de Madrid, Madrid, Spain
| | - Maria Ramirez-Nicolas
- Quasar Science Resources, S. L. Camino de las Ceudas 2, 28232, Las Rozas de Madrid, Madrid, Spain
| | - Isabel Caballero
- Instituto de Ciencias Marinas de Andalucía (ICMAN), Consejo Superior de Investigaciones Científicas (CSIC), Avenida República Saharaui, 11510, Cadiz, Spain
| | - Ignacio de la Calle
- Quasar Science Resources, S. L. Camino de las Ceudas 2, 28232, Las Rozas de Madrid, Madrid, Spain
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Caballero I, Stumpf RP. Confronting turbidity, the major challenge for satellite-derived coastal bathymetry. Sci Total Environ 2023; 870:161898. [PMID: 36731561 DOI: 10.1016/j.scitotenv.2023.161898] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/10/2022] [Revised: 01/18/2023] [Accepted: 01/25/2023] [Indexed: 06/18/2023]
Abstract
Monitoring the complex seafloor morphology that drives the functioning of shallow coastal ecosystems is vital for assessing marine activities. Satellite-derived bathymetry (SDB) can provide a crucial dataset for creating the bathymetry maps needed to understand hazards and impacts produced by climate change in vulnerable coastal zones. SDB is effective in clear water, but still has limitations in application to areas with some turbidity. Here, using the twin satellites Sentinel-2A/B, we integrate water quality information from the satellite with a multi-temporal compositing method to demonstrate a potential for comprehensively operational bathymetric mapping over a range of environments. The automated compositing method diminishes the turbidity impact in addition to inferring the maximum detectable depth and removing optically deep-water areas. Examining a wide range of conditions along the Caribbean and eastern coast of the U.S. shows detailed bathymetry as deep as 30 m at 10 m spatial resolution with median errors <1 m when compared to high-resolution lidar surveys. These results demonstrate that the model adopted can provide useful bathymetry in areas that do not have consistently clear water and can be extended across multiple geographic regions and optical conditions at local, regional, and national scales.
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Affiliation(s)
- Isabel Caballero
- Instituto de Ciencias Marinas de Andalucía (ICMAN), Consejo Superior de Investigaciones Científicas (CSIC), Avenida República Saharaui, 11519 Puerto Real, Spain.
| | - Richard P Stumpf
- National Oceanic and Atmospheric Administration (NOAA), National Centers for Coastal Ocean Science, Silver Spring, MD 20910, United States of America
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Detoni AMS, Navarro G, Garrido JL, Rodríguez F, Hernández-Urcera J, Caballero I. Mapping dinoflagellate blooms (Noctiluca and Alexandrium) in aquaculture production areas in the NW Iberian Peninsula with the Sentinel-2/3 satellites. Sci Total Environ 2023; 868:161579. [PMID: 36640882 DOI: 10.1016/j.scitotenv.2023.161579] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Revised: 12/20/2022] [Accepted: 01/09/2023] [Indexed: 06/17/2023]
Abstract
The Galician Rías (northwestern Spain) are periodically affected by harmful algal blooms (HABs), mostly dinoflagellates, which pose a challenge to aquaculture activities due to the accumulation of biotoxins in shellfish. Typically, reddish blooms in the Rías are associated with non-toxic species like Noctiluca scintillans, with a few exceptions such as Alexandrium minutum, a producer of paralytic shellfish toxins (PST). Here, a useful approach is presented for monitoring reddish blooms through satellite imagery based on three case studies, two of them belonged to monospecific blooms of red Noctiluca scintillans, and the third to a bloom of Alexandrium spp. dominated by A. tamarense. In every case, a propulsive index was evaluated using Sentinel-2A/B satellites, which provide high spatial and spectral resolutions, combined with adequate atmospheric and sunglint correction by using the ACOLITE and C2RCC processors. This approach offers a simple and feasible method to accurately and timely map blooms of red N. scintillans and Alexandrium spp. in the study area, useful to detect the distribution of reddish blooms with synoptic observations for monitoring and aquaculture management purposes. Conversely, Sentinel-3A/B satellites with a relatively coarser spatial resolution, lacking adequate visualization and mapping of the extent of small blooms, did not accurately detect bloom footprints in the coastal bay region, although this sensor displays a set of suitable multispectral bands.
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Affiliation(s)
- Amália Maria Sacilotto Detoni
- Instituto de Ciencias Marinas de Andalucía (ICMAN), Consejo Superior de Investigaciones Científicas (CSIC), Campus Río San Pedro, 11510 Puerto Real, Spain.
| | - Gabriel Navarro
- Instituto de Ciencias Marinas de Andalucía (ICMAN), Consejo Superior de Investigaciones Científicas (CSIC), Campus Río San Pedro, 11510 Puerto Real, Spain
| | - José L Garrido
- Instituto de Investigaciones Marinas (IIM, CSIC), 36208 Vigo, Spain
| | - Francisco Rodríguez
- Centro Oceanográfico de Vigo, Instituto Español de Oceanografia (IEO, CSIC), 36390 Vigo, Spain
| | - Jorge Hernández-Urcera
- Instituto de Investigaciones Marinas (IIM, CSIC), 36208 Vigo, Spain; Centro Oceanográfico de Vigo, Instituto Español de Oceanografia (IEO, CSIC), 36390 Vigo, Spain
| | - Isabel Caballero
- Instituto de Ciencias Marinas de Andalucía (ICMAN), Consejo Superior de Investigaciones Científicas (CSIC), Campus Río San Pedro, 11510 Puerto Real, Spain
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Román A, Tovar-Sánchez A, Roque-Atienza D, Huertas IE, Caballero I, Fraile-Nuez E, Navarro G. Unmanned aerial vehicles (UAVs) as a tool for hazard assessment: The 2021 eruption of Cumbre Vieja volcano, La Palma Island (Spain). Sci Total Environ 2022; 843:157092. [PMID: 35779732 DOI: 10.1016/j.scitotenv.2022.157092] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/10/2022] [Revised: 06/08/2022] [Accepted: 06/27/2022] [Indexed: 06/15/2023]
Abstract
Monitoring for assessment of natural disasters, such as volcanic eruptions, presents a methodological challenge for the scientific community. Here, we present Unmanned Aerial Vehicles (UAVs) as a feasible, precise, rapid and safe tool for real time monitoring of the impacts of a volcanic event during the Cumbre Vieja eruption on La Palma Island, Spain (2021). UAV surveys with optical RGB (Red-Green-Blue), thermal and multispectral sensors, and a water sampling device, were carried out in different areas affected by the lava flow, including the upper volcanic edifice and the lava delta formed on the coastal fringe of the island. Our results have provided useful information for the monitoring of the advance of the lava flow and its environmental consequences during the volcanic emergency. Our data shows how La Palma island's growth, with the formation of a new lava delta of 28 ha and a total volume of lava injected into the sea of 5,138,852 m3. Moreover, our Digital Elevation Model (DEM) simulated, with a 70 % accuracy, the probabilistic simulation of the possible path followed by the lava flow in the vicinity of the fissure from which the magma emanates. In addition, significant changes of seawater physical-chemical parameters were registered in coastal surface waters by the in situ seawater samples collected with the automatic water sampling device of our UAV. The first meters of the water column, due to the instant evaporation of the seawater in contact with the hot lava, produce an increase of temperature and salinity of up to 4-5 °C and up to 5 units, respectively.
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Affiliation(s)
- A Román
- Department of Ecology and Coastal Management, Institute of Marine Sciences of Andalusia (ICMAN), Spanish National Research Council (CSIC), 11510 Puerto Real, Spain.
| | - A Tovar-Sánchez
- Department of Ecology and Coastal Management, Institute of Marine Sciences of Andalusia (ICMAN), Spanish National Research Council (CSIC), 11510 Puerto Real, Spain
| | - D Roque-Atienza
- Department of Ecology and Coastal Management, Institute of Marine Sciences of Andalusia (ICMAN), Spanish National Research Council (CSIC), 11510 Puerto Real, Spain
| | - I E Huertas
- Department of Ecology and Coastal Management, Institute of Marine Sciences of Andalusia (ICMAN), Spanish National Research Council (CSIC), 11510 Puerto Real, Spain
| | - I Caballero
- Department of Ecology and Coastal Management, Institute of Marine Sciences of Andalusia (ICMAN), Spanish National Research Council (CSIC), 11510 Puerto Real, Spain
| | - E Fraile-Nuez
- Canary Islands Oceanographic Centre, Spanish Institute of Oceanography (IEO), Spanish National Research Council (CSIC), 38180 Santa Cruz de Tenerife, Spain
| | - G Navarro
- Department of Ecology and Coastal Management, Institute of Marine Sciences of Andalusia (ICMAN), Spanish National Research Council (CSIC), 11510 Puerto Real, Spain
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Martin-Lobera C, Aranda F, Lozano-Martinez P, Caballero I, Blanco CA. Bread as a Valuable Raw Material in Craft Ale Beer Brewing. Foods 2022; 11:foods11193013. [PMID: 36230089 PMCID: PMC9563417 DOI: 10.3390/foods11193013] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2022] [Revised: 09/20/2022] [Accepted: 09/23/2022] [Indexed: 11/16/2022] Open
Abstract
One of the ingredients used for brewing is barley, which should be malted; it is considered the most polluting agricultural input. On the other hand, food wastage is today a widespread problem that causes significant environmental damage and also generates large economic losses worldwide. One of the most wasted food products is bread; it is estimated that hundreds of tons of bread are wasted every day worldwide. In this study, the brewing of ale beers with bread was carried out. For this purpose, up to 50% of the malt weight was replaced by different types of bread: wheat bread, whole wheat bread, rye bread, and corn bread. A physicochemical and sensory comparison was made with 100% malt ale beer. All beers brewed with bread had an alcoholic strength similar to that of the control beer, except the corn beer. Beers brewed with whole grain bread showed a higher antioxidant capacity and a higher total polyphenol content. The sensory analysis presented different profiles depending on the type of bread; in general, the addition of bread created a greater olfactory intensity in nose. Thus, it was found that it is possible to brew beer with bread substituting up to 50% of the malt. In addition, it was also shown that the beer brewed with whole wheat bread had similar characteristics to the control beer, even improving some beneficial health properties, representing a great advantage for the brewing industry all over the world.
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Affiliation(s)
- Carlos Martin-Lobera
- Department of Agricultural and Forestry Engineering (Food Technology Area), E.T.S. Agricultural Engineering, University of Valladolid, 34004 Palencia, Spain
| | - Fernando Aranda
- Department of Agricultural and Forestry Engineering (Food Technology Area), E.T.S. Agricultural Engineering, University of Valladolid, 34004 Palencia, Spain
| | | | - Isabel Caballero
- Department of Agricultural and Forestry Engineering (Food Technology Area), E.T.S. Agricultural Engineering, University of Valladolid, 34004 Palencia, Spain
| | - Carlos A. Blanco
- Department of Agricultural and Forestry Engineering (Food Technology Area), E.T.S. Agricultural Engineering, University of Valladolid, 34004 Palencia, Spain
- Correspondence:
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Caballero I, Román A, Tovar-Sánchez A, Navarro G. Water quality monitoring with Sentinel-2 and Landsat-8 satellites during the 2021 volcanic eruption in La Palma (Canary Islands). Sci Total Environ 2022; 822:153433. [PMID: 35093350 DOI: 10.1016/j.scitotenv.2022.153433] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/04/2021] [Revised: 01/17/2022] [Accepted: 01/22/2022] [Indexed: 06/14/2023]
Abstract
In this study, seawater quality was monitored with high-resolution satellite imagery during the 2021 volcanic eruption (September-December) on La Palma Island (Spain), the longest recorded in the history of the island, and the most destructive in the last century in Europe. The Sentinel-2A/B twin satellites and Landsat-8 satellite were jointly used as an optical constellation, which allowed us to successfully characterize the short- and medium-term evolution of the new lava delta and subsequent impact on the seawater. Robust atmospheric and sunglint correction approaches were applied to thoroughly quantify the environmental changes caused on the adjacent coastal waters. The cloud and volcanic ash coverage remained very high over the coast during the event, so restricted information with 14 images (45% of the total scenes) was retrieved from the multi-sensor approach. Nevertheless, the availability of pre-, syn-, and post-eruption satellite products allowed us to map and detect the main water quality variations in the marine environment. On the one hand, during the eruption, a change in the properties of the water quality was observed, with a markedly increased turbidity on the western side of the island near the new lava delta due to the deposition of volcanic ash and material. On the other hand, chlorophyll-a concentration did not significantly increase, algal blooms were not observed, and oligotrophic conditions were not swiftly altered towards eutrophic conditions. This information offered an excellent opportunity to characterize the emplacement of the new lava delta and its impact on the marine environment in La Palma. The present multi-sensor strategy is an excellent opportunity to highlight the potential of remote sensing technology as a relevant and powerful tool for future hazard monitoring and assessment during catastrophes and for a better interpretation of their impact on the marine environment.
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Affiliation(s)
- Isabel Caballero
- Instituto de Ciencias Marinas de Andalucía (ICMAN), Consejo Superior de Investigaciones Científicas (CSIC), Avenida República Saharaui, 11519 Puerto Real, Spain.
| | - Alejandro Román
- Instituto de Ciencias Marinas de Andalucía (ICMAN), Consejo Superior de Investigaciones Científicas (CSIC), Avenida República Saharaui, 11519 Puerto Real, Spain
| | - Antonio Tovar-Sánchez
- Instituto de Ciencias Marinas de Andalucía (ICMAN), Consejo Superior de Investigaciones Científicas (CSIC), Avenida República Saharaui, 11519 Puerto Real, Spain
| | - Gabriel Navarro
- Instituto de Ciencias Marinas de Andalucía (ICMAN), Consejo Superior de Investigaciones Científicas (CSIC), Avenida República Saharaui, 11519 Puerto Real, Spain
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Caballero I, Navarro G. Monitoring cyanoHABs and water quality in Laguna Lake (Philippines) with Sentinel-2 satellites during the 2020 Pacific typhoon season. Sci Total Environ 2021; 788:147700. [PMID: 34029825 DOI: 10.1016/j.scitotenv.2021.147700] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/11/2021] [Revised: 04/24/2021] [Accepted: 05/07/2021] [Indexed: 06/12/2023]
Abstract
Laguna Lake, the largest freshwater lake in the Philippines, is permanently subject to nutrient-driven eutrophication and pollution and experiences harmful algal blooms (cyanoHABs) periodically with serious socio-economic implications. The aim of this study is to evaluate the suitability of the Sentinel-2 imagery of the European Commission's Copernicus Earth Observation programme for lake monitoring during the 2020 Pacific typhoon season (September-November 2020). The Case-2 Regional CoastColour processor is used to atmospherically correct Level 1 data and generate water quality parameters, such as chlorophyll-a (Chl-a) and total suspended matter (TSM) at 10 m. Results show that Super Typhoon Goni and Typhoon Vamco delivered high suspended sediment loads to the reservoir at concentrations above 170 g/m3 compared to pre-storm situations (0-35 g/m3). The typhoons also affect Chl-a, with a mean concentration of 10 mg/m3 and 30 mg/m3 for pre- and post-typhoons, respectively. In addition, the normalized difference chlorophyll index (NDCI) is used in the Google Earth Engine platform for near-real time monitoring of cyanoHABs at 20 m spatial resolution. Satellite maps are key for detecting the distribution of the blooms due to the patchiness of the green algae species, which usually form scum and elongated slicks in the lake. Maximum records of bloom detection during the study period occur in the Central Bay, one of the lake sections with major aquaculture and fisheries activities. The Sentinel-2 mission improves synoptic mapping of cyanoHABs and enables trends in their extent and severity to be documented. These available methods provide an essential tool for rapid detection after extreme events and for regular water quality monitoring, which will assist and benefit the cost-effective management of Laguna Lake.
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Affiliation(s)
- Isabel Caballero
- Instituto de Ciencias Marinas de Andalucía (ICMAN), Consejo Superior de Investigaciones Científicas (CSIC), Puerto Real, 11510, Cádiz, Spain.
| | - Gabriel Navarro
- Instituto de Ciencias Marinas de Andalucía (ICMAN), Consejo Superior de Investigaciones Científicas (CSIC), Puerto Real, 11510, Cádiz, Spain
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Cadenas R, Caballero I, Nimubona D, Blanco CA. Brewing with Starchy Adjuncts: Its Influence on the Sensory and Nutritional Properties of Beer. Foods 2021; 10:1726. [PMID: 34441504 PMCID: PMC8392023 DOI: 10.3390/foods10081726] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2021] [Revised: 07/16/2021] [Accepted: 07/21/2021] [Indexed: 11/16/2022] Open
Abstract
In brewing, the use of cereals (wheat, barley, maize, rice, sorghum, oats, rye or millet), pseudo-cereals (buckwheat, quinoa or amaranth) and tubers (sweet potato), as starch adjuncts, is being promoted for the production of a variety of high-quality beers, from sensory and nutritional points of view. The sensory properties of the obtained beer depend on the characteristics of each adjunct but also on the forms in which the adjunct is added: whole cereal, grits, malted, extruded grains, torrefied and syrup. Among these common forms, the extruded grains (maize or rice) produce a higher content of aroma compounds in beer. From a nutritional point of view, the use of non-conventional starch adjuncts, such as black rice, buckwheat or sweet potato, leads to an increase in the polyphenol content of the beer, and thus, its antioxidant capacity. Cereals such as maize, rice, sorghum or millet are the most promising for the production of gluten-free beers. A close relationship can be developed between the use of adjuncts in the beer industry and the use of commercial enzymes. Advances made by biotechnology to design new enzymes with different functionalities could be associated to a future increase in adjunct usage in brewing.
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Affiliation(s)
| | | | | | - Carlos A. Blanco
- Dpto. Ingeniería Agrícola y Forestal (Área de Tecnología de los Alimentos), E.T.S. Ingenierías Agrarias, Universidad de Valladolid, 34004 Palencia, Spain; (R.C.); (I.C.); (D.N.)
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Liberatore J, Dufrénoy M, Caballero I, Martin M, Odile S. Algoneurodystrophie paranéoplasique : description d’un cas. Des oedèmes qui tiennent tête. Rev Med Interne 2020. [DOI: 10.1016/j.revmed.2020.10.361] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Rodríguez-Benito CV, Navarro G, Caballero I. Using Copernicus Sentinel-2 and Sentinel-3 data to monitor harmful algal blooms in Southern Chile during the COVID-19 lockdown. Mar Pollut Bull 2020; 161:111722. [PMID: 33039790 PMCID: PMC7544481 DOI: 10.1016/j.marpolbul.2020.111722] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/08/2020] [Revised: 09/23/2020] [Accepted: 09/23/2020] [Indexed: 05/20/2023]
Abstract
During the southern summer of 2020, large phytoplankton blooms were detected using satellite technology in Chile (western Patagonia), where intensive salmonid aquaculture is carried out. Some harvesting sites recorded massive fish mortalities, which were associated with the presence of the dinoflagellate species Cochlodinium sp. The bloom included other phytoplankton species, as Lepidodinium chlorophorum, which persistently changed the colour of the ocean to green. These blooms coincided with the government-managed emergency lockdown due to the COVID-19 pandemic. Local in situ sampling was slowed down. However, imagery from the Copernicus programme allowed operational monitoring. This study shows the benefits of both Sentinel-3 and Sentinel-2 satellites in terms of their spectral, spatial and temporal capabilities for improved algal bloom monitoring. These novel tools, which can foster optimal decision-making, are available for delivering early alerts in situations of natural catastrophes and blockages, such as those occurred during the global COVID-19 lockdown.
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Affiliation(s)
| | - Gabriel Navarro
- Instituto de Ciencias Marinas de Andalucía (ICMAN), Consejo Superior de Investigaciones Científicas (CSIC), Puerto Real 11510, Cádiz, Spain
| | - Isabel Caballero
- Instituto de Ciencias Marinas de Andalucía (ICMAN), Consejo Superior de Investigaciones Científicas (CSIC), Puerto Real 11510, Cádiz, Spain.
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Labrado D, Ferrero S, Caballero I, Alvarez CM, Villafañe F, Blanco CA. Identification by NMR of key compounds present in beer distillates and residual phases after dealcoholization by vacuum distillation. J Sci Food Agric 2020; 100:3971-3978. [PMID: 32333388 DOI: 10.1002/jsfa.10441] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2019] [Revised: 03/20/2020] [Accepted: 04/24/2020] [Indexed: 06/11/2023]
Abstract
BACKGROUND Nowadays, low alcohol and non-alcohol beer intake has increased due to expanding concerns about healthy diets. However, there are still appreciable differences between non-alcoholic beer and conventional beer, particularly regarding flavor. Vacuum distillation is commonly used to remove ethanol from the beer in industrial processes and it is used here. RESULTS The presence of n-propanol, isobutanol, 3-methylbutanol, 2-methylbutanol, 2-phenylethanol, ethyl acetate, isoamyl acetate, and acetaldehyde, which are key compounds responsible for aroma and flavor of beer, have been analyzed using nuclear magnetic resonance (NMR) spectroscopy in commercial beers and also in the corresponding distillates and residual phases after dealcoholization. CONCLUSION The compounds present in each phase were identified by monodimensional and bidimensional NMR spectra. The compounds that are completely removed or that remain in the residue of the conventional beers studied are described in detail. The presence of these compounds in dealcoholized beer would be beneficial in keeping the aroma and flavor in dealcoholized beer. © 2020 Society of Chemical Industry.
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Affiliation(s)
- David Labrado
- Dpto. Ingeniería Agrícola y Forestal (Área de Tecnología de los Alimentos). E.T.S. Ingenierías Agrarias, Universidad de Valladolid, Palencia, Spain
| | - Sergio Ferrero
- GIR MIOMET-IU CINQUIMA-Química Inorgánica, Facultad de Ciencias, Campus Miguel Delibes, Universidad de Valladolid, Valladolid, Spain
| | - Isabel Caballero
- Dpto. Ingeniería Agrícola y Forestal (Área de Tecnología de los Alimentos). E.T.S. Ingenierías Agrarias, Universidad de Valladolid, Palencia, Spain
| | - Celedonio M Alvarez
- GIR MIOMET-IU CINQUIMA-Química Inorgánica, Facultad de Ciencias, Campus Miguel Delibes, Universidad de Valladolid, Valladolid, Spain
| | - Fernando Villafañe
- GIR MIOMET-IU CINQUIMA-Química Inorgánica, Facultad de Ciencias, Campus Miguel Delibes, Universidad de Valladolid, Valladolid, Spain
| | - Carlos A Blanco
- Dpto. Ingeniería Agrícola y Forestal (Área de Tecnología de los Alimentos). E.T.S. Ingenierías Agrarias, Universidad de Valladolid, Palencia, Spain
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12
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Caballero I, Fernández R, Escalante OM, Mamán L, Navarro G. New capabilities of Sentinel-2A/B satellites combined with in situ data for monitoring small harmful algal blooms in complex coastal waters. Sci Rep 2020; 10:8743. [PMID: 32457388 PMCID: PMC7250863 DOI: 10.1038/s41598-020-65600-1] [Citation(s) in RCA: 43] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2020] [Accepted: 05/06/2020] [Indexed: 11/23/2022] Open
Abstract
The increased frequency of harmful algal blooms (HABs) is a major environmental concern worldwide, resulting not only in increased treatment costs for drinking water but also in impacts on tourism, commercial fishing and aquaculture and risks to human and animal health. Traditional strategies with ship-based approaches based on field sampling and laboratory analysis have been adopted to assess HABs. However, these methods are labour intensive and costly and do not provide synoptic views of the bloom conditions. Here, we show that the Sentinel-2 twin satellite mission of the Copernicus programme, in combination with in situ data, is a powerful tool that can offer valuable spatiotemporal information about a bloom of the dinoflagellate Lingulodinium polyedra that occurred on the SW Iberian Peninsula. Using the robust ACOLITE atmospheric correction processor combined with the normalized difference chlorophyll index (NDCI), the enhanced mapping of small blooms can be performed at a 10 m spatial resolution, revealing surface patches and a heterogeneous distribution. This research also demonstrates the improved capabilities of Sentinel-2 compared to those of Landsat-8 and Sentinel-3 for continuous monitoring. The Sentinel-3 and Sentinel-2 missions provide ecosystem observations that allow the environmental community and water managers to evaluate changes in water quality and bloom distribution and that facilitate field-based measurements. Therefore, the value added by the Copernicus products in terms of frequency and synoptic observations is of paramount importance for ecological and management purposes at regional and national scales.
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Affiliation(s)
- Isabel Caballero
- Instituto de Ciencias Marinas de Andalucía (ICMAN), Consejo Superior de Investigaciones Científicas (CSIC), Avenida República Saharaui, 11519, Puerto Real, Spain.
| | - Raúl Fernández
- Laboratorio de Control de Calidad de los Recursos Pesqueros, Agencia de Gestión Agraria y Pesquera de Andalucía (AGAPA), Consejería de Agricultura, Ganadería, Pesca y Desarrollo Sostenible, Junta de Andalucía, 21459, Cartaya, Spain
| | - Oscar Moreno Escalante
- Instituto Andaluz de Investigación y Formación Agraria, Pesquera, Alimentaria y de la Producción Ecológica (IFAPA), Centro Agua del Pino, Huelva, 21459, Spain
| | - Luz Mamán
- Laboratorio de Control de Calidad de los Recursos Pesqueros, Agencia de Gestión Agraria y Pesquera de Andalucía (AGAPA), Consejería de Agricultura, Ganadería, Pesca y Desarrollo Sostenible, Junta de Andalucía, 21459, Cartaya, Spain
| | - Gabriel Navarro
- Instituto de Ciencias Marinas de Andalucía (ICMAN), Consejo Superior de Investigaciones Científicas (CSIC), Avenida República Saharaui, 11519, Puerto Real, Spain
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Caballero I, Stumpf RP. Atmospheric correction for satellite-derived bathymetry in the Caribbean waters: from a single image to multi-temporal approaches using Sentinel-2A/B. Opt Express 2020; 28:11742-11766. [PMID: 32403679 DOI: 10.1364/oe.390316] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/11/2020] [Accepted: 03/26/2020] [Indexed: 06/11/2023]
Abstract
Different atmospheric correction (AC) procedures for Sentinel-2 satellites are evaluated for their effectiveness in retrieving consistent satellite-derived bathymetry (SDB) over two islands in the Caribbean (Buck and Culebra). The log-ratio method for SDB, which allows use of minimal calibration information from lidar surveys (25 points in this study), is applied to several Sentinel-2A/B scenes at 10 m spatial resolution. The overall performance during a one-year study period depends on the image quality and AC. Three AC processors were evaluated: ACOLITE Exponential model (EXP), ACOLITE Dark Spectrum Fitting model (DSF), and C2RCC model. ACOLITE EXP and ACOLITE DSF produce greater consistency and repeatability with accurate results in a scene-by-scene analysis (mean errors ∼1.1 m) for depths up to 23 m (limit of lidar surveys). In contrast, C2RCC produces lower accuracy and noisier results with generally higher (>50%) errors (mean errors ∼2.2 m), but it is able to retrieve depth for scenes in Buck Island that have moderately severe sunglint. Furthermore, we demonstrate that a multi-temporal compositing model for SDB mapping, using ACOLITE for the input scenes, could achieve overall median errors <1 m for depths ranging 0-23 m. The simple and effective compositing model can considerably enhance coastal SDB estimates with high reliability and no missing data, outperforming the traditional single image approaches and thus eliminating the need to evaluate individual scenes. The consistency in the output from the AC correction indicates the potential for automated application of the multi-scene compositing technique, which can apply the open and free Sentinel-2 data set for the benefit of operational and scientific investigations.
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Martinez-Gomez A, Caballero I, Blanco CA. Phenols and Melanoidins as Natural Antioxidants in Beer. Structure, Reactivity and Antioxidant Activity. Biomolecules 2020; 10:E400. [PMID: 32143493 PMCID: PMC7175304 DOI: 10.3390/biom10030400] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2020] [Revised: 02/24/2020] [Accepted: 03/01/2020] [Indexed: 12/17/2022] Open
Abstract
Beer is one of the most consumed drinks around the world, containing a variety of compounds that offer both appreciated sensorial characteristics and health advantages. Important healthy compounds in beer are those with antioxidant properties that attenuate the content of free radicals produced as by-products in the human metabolism, exerting an appreciable effect against cancers or cardiovascular diseases. This work details a study of antioxidant compounds present in beer, focusing on the two main groups: phenols (including polyphenolic forms) and melanoidins, formed specifically during brewing as Maillard products. The fundaments of the most important methods to evaluate beer antioxidant activity, the main antioxidant compounds present in beer-especially those with healthy properties-and the new trends to increase beer antioxidant activity are also discussed.
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Affiliation(s)
| | | | - Carlos A. Blanco
- Dpto. Ingeniería Agrícola y Forestal (Area de Tecnología de los Alimentos), E.T.S. Ingenierías Agrarias, Universidad de Valladolid, 34004 Palencia, Spain; (A.M.-G.); (I.C.)
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Dionísio AC, Gomes R, Cernadas E, Caballero I, Proença J, Lages D, Vicente L. Giant Cystic Mediastinal Lymphangioma. Eur J Case Rep Intern Med 2020; 7:001323. [PMID: 32015966 PMCID: PMC6993911 DOI: 10.12890/2019_001323] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2019] [Accepted: 10/15/2019] [Indexed: 11/05/2022] Open
Abstract
Cystic lymphangioma mainly occurs in children and develops from the lymphatic vessels. The present study reports the case of a 36-year-old female patient with a giant cystic mediastinal lymphangioma. She was asymptomatic and the diagnosis was accidental. Imaging studies are important for referral to the Cardio-Thoracic Surgery Department for surgical intervention in order to remove the lesion. It is important that in the case of an enlargement of the mediastinum observed in a thoracic X-ray, the possible diagnosis takes into consideration various hypotheses. Early diagnosis may prevent further growth and infiltration of structures that hinder the surgical approach. LEARNING POINTS Cystic lymphangioma corresponds to approximately 0.7 to 4% of all mediastinal tumours.They are usually asymptomatic and, in adults, the diagnosis is accidental.After an imaging study with computed tomography and nuclear magnetic resonance, patients are usually candidates for surgical excision.
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Affiliation(s)
- Ana Catarina Dionísio
- Internal Medicine Department, Centro Hospitalar Universitário Cova da Beira, Covilhã, Portugal
| | - Ricardo Gomes
- Internal Medicine Department, Centro Hospitalar Universitário Cova da Beira, Covilhã, Portugal
| | - Eduardo Cernadas
- Internal Medicine Department, Centro Hospitalar Universitário Cova da Beira, Covilhã, Portugal
| | - Isabel Caballero
- Internal Medicine Department, Centro Hospitalar Universitário Cova da Beira, Covilhã, Portugal
| | - José Proença
- Internal Medicine Department, Centro Hospitalar Universitário Cova da Beira, Covilhã, Portugal
| | - Didia Lages
- Internal Medicine Department, Centro Hospitalar Universitário Cova da Beira, Covilhã, Portugal
| | - Leopoldina Vicente
- Internal Medicine Department, Centro Hospitalar Universitário Cova da Beira, Covilhã, Portugal
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Abstract
Abstract
While beer provides a very stable microbiological environment, a few niche microorganisms are capable of growth in malt, wort, and beer. The production of off-flavors and development of turbidity in the packaged product are due to the growth and metabolic activity of wild yeast, certain lactic acid bacteria (LAB) and anaerobic Gram-negative bacteria. Beer also contains bitter hop compounds, which are toxic to Gram-positive and Gram-negative bacteria, and contribute to preventing the spoilage of this beverage. In the boiling process, the hop -acids (humulones) are isomerized into iso -acids. These products are responsible for the bitter taste of beer, but they also play an essential role in enhancing foam stability. Antibacterial activity of iso -acids and their hydrogenated derivates (rhoiso -acids and tetrahydroiso -acids) in MRS broth and beer have been evaluated against different LAB (Lactobacillus and Pediococcus) for the determination of their beer-stabilizing capabilities. Besides this, we have determined the minimum inhibitory concentration and the bacteriostatic effect of each compound against Pediococcus. We found that tetrahydroiso-acids (added directly to beer during production processes) are the compounds that present the greatest antibacterial activity against the main agents implicated in beer spoilage.
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Affiliation(s)
- Isabel Caballero
- Universidad de Valladolid, Dpto. Ingeniería Agrícola y Forestal (Área de Tecnología de los Alimentos) E.T.S. Ingeniarías Agrarias, 34004 Palencia, Spain
| | - Montserrat Agut
- Ramon Llull University, Analytical Chemistry Department, Institut Químic de Sarrià, Via Augusta 390, 08017 Barcelona, Spain
| | - Alicia Armentia
- Hospital Universitario Rio Hortega, Cardenal Torquemada s/n, 47010 Valladolid, Spain
| | - Carlos A Blanco
- Universidad de Valladolid, Dpto. Ingeniería Agrícola y Forestal (Área de Tecnología de los Alimentos) E.T.S. Ingeniarías Agrarias, 34004 Palencia, Spain
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Macedo D, Caballero I, Mateos M, Leblois R, McCay S, Hurtado LA. Population genetics and historical demographic inferences of the blue crab Callinectes sapidus in the US based on microsatellites. PeerJ 2019; 7:e7780. [PMID: 31632846 PMCID: PMC6796965 DOI: 10.7717/peerj.7780] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2018] [Accepted: 08/28/2019] [Indexed: 01/02/2023] Open
Abstract
The native range of the blue crab Callinectes sapidus spans Nova Scotia to northern Argentina. In the US, it constitutes a keystone species in estuarine habitats of the Atlantic coast and Gulf of Mexico (GOM), serving as both predator and prey to other species, and also has historically represented a multi-billion dollar fishery. Knowledge relevant to effective management and monitoring of this ecologically and economically important species, such as levels of population genetic differentiation and genetic diversity, is necessary. Although several population genetics studies have attempted to address these questions in one or more parts of its distribution, conflicting results and potential problems with the markers used, as well as other issues, have obscured our understanding on them. In this study, we examined large-scale genetic connectivity of the blue crab in the US, using 16 microsatellites, and genotyped individuals from Chesapeake Bay, in the US Atlantic, and from nine localities along the US GOM coast. Consistent with the high long-distance dispersal potential of this species, very low levels of genetic differentiation were detected for the blue crab among the ten US localities examined, suggesting it constitutes a large panmictic population within this region. Estimations of genetic diversity for the blue crab appear to be high in the US, and provide a baseline for monitoring temporal changes in this species. Demographic analyses indicate a recent range expansion of the US population, probably during the Holocene. In addition, capitalizing on published microsatellite data from southern Brazil, our analyses detected high genetic differentiation between localities in the US and Brazil. These results point to the need for examination of genetic diversity and differentiation along the area spanning the US to southern Brazil.
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Affiliation(s)
- Danielle Macedo
- Department of Wildlife and Fisheries Sciences, Texas A&M University, College Station, TX, USA
| | - Isabel Caballero
- Department of Wildlife and Fisheries Sciences, Texas A&M University, College Station, TX, USA
| | - Mariana Mateos
- Department of Wildlife and Fisheries Sciences, Texas A&M University, College Station, TX, USA
| | - Raphael Leblois
- CBGP, INRA, CIRAD, IRD, Montpellier SupAgro, University of Montpellier, Montpellier, France
| | - Shelby McCay
- Department of Wildlife and Fisheries Sciences, Texas A&M University, College Station, TX, USA
| | - Luis A Hurtado
- Department of Wildlife and Fisheries Sciences, Texas A&M University, College Station, TX, USA
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Montazeri M, Sanchez-Lopez JA, Caballero I, Maslehat Lay N, Elliott S, Fazeli A. Interleukin-1 receptor antagonist mediates toll-like receptor 3-induced inhibition of trophoblast adhesion to endometrial cells in vitro. Hum Reprod 2016; 31:2098-107. [PMID: 27412245 DOI: 10.1093/humrep/dew171] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2015] [Accepted: 06/13/2016] [Indexed: 01/10/2023] Open
Abstract
STUDY QUESTION Is interleukin-1 receptor antagonist (IL-1RA) involved in the toll-like receptor 3 (TLR 3)-induced inhibition of trophoblast cells' adhesion to endometrial cells in vitro? SUMMARY ANSWER IL-1RA mediates the TLR 3-induced inhibition of trophoblast cells' adhesion to endometrial cells in vitro. WHAT IS KNOWN ALREADY It is well documented that endometrial TLR 3 activation leads to impairment of trophoblast binding to endometrial cells in vitro. IL-1RA is known as an anti-implantation factor, as its injection significantly reduced implantation rates in mice by an effect on endometrial receptivity. STUDY DESIGN, SIZE, DURATION Poly I:C was used as a TLR3 specific ligand and endometrial cells were either treated or not with Poly I:C (treated versus control) in vitro. IL-1RA was applied to block IL-1 signal transduction. IL-1RA was knocked down by Accell Human IL1RN siRNA. Flagellin was used to stimulate TLR 5. SP600125 (JNK) was applied to inhibit the mitogen-activated protein kinases (MAPK) pathway. BAY11 -7082 was used to inhibit the nuclear factor-κB (NF-κB) pathway. The experiments were performed in three replicates on three separate days. PARTICIPANTS/MATERIALS, SETTING, METHODS An in vitro assay was developed using RL95-2 (an endometrial cell line) and JAr (a trophoblast cell line) cells. Initially, the production of IL-1RA in RL95-2 cells in response to TLR 3 activation was measured. To determine whether the TLR 3-induced inhibition of trophoblast binding was mediated through IL-1RA: (i) we evaluated the effect of IL-1RA on the attachment of trophoblast cells to endometrial cells; (ii) we knocked down TLR3-induced IL-1RA gene expression by IL-1RA Small interfering RNA (siRNA) and evaluated trophoblast attachment to endometrial cells. Finally, to clarify through which pathway TLR 3-induced inhibition of trophoblast binding occurs: (i) activation of NF-κB and MAPK was detected by transfecting the cells with secreted placental alkaline phosphatase reporter plasmids bearing promoter sequences for each transcription factor; (ii) the inhibitors for NF-κB and MAPK were used to block signaling; (iii) it was then investigated whether addition of these inhibitors could restore the TLR 3-induced impairment of trophoblast attachment to the endometrial cells. MAIN RESULTS AND THE ROLE OF CHANCE Our results showed that addition of polyinosinic:polycytidylic acid (Poly I:C) to RL95-2 cells significantly increased the production of IL-1RA (P < 0.05). Addition of human recombinant IL-1RA to RL95-2 cells remarkably decreased the adhesion rate of trophoblast cells to endometrial cells (P < 0.05). In addition, suppression of TLR3-induced IL-1RA gene expression in RL95-2 cells significantly restored trophoblast cells attachment to endometrial cells in the presence of Poly I:C (P < 0.05). Only TLR3 and not TLR5 induced MAPK activation (P < 0.05). TLR3 ligation did not affect NF-κB activation. Of NF-kB and MAPK inhibitors, only MAPK's inhibitor could achieve restoration of spheroid adhesion to endometrial cells (P < 0.05). LIMITATIONS, REASONS FOR CAUTION This study has been only done in vitro. Future in vivo studies will confirm our data. WIDER IMPLICATIONS OF THE FINDINGS The findings of this study have a potential clinical application in introducing IL-1RA as one of the diagnostic infertility markers in the endometrium, which can affect the process of embryo adhesion at the time of implantation. Moreover, based on the novel data obtained in the current study, blocking and regulating the MAPK pathway by its inhibitors can be used as a new strategy to prevent and treat virus-induced infertility cases in ART techniques. STUDY FUNDING/COMPETING INTEREST This study was partially funded by a Marie Curie IIF-253948 grant to I.C. and was partially funded by the author's institutions. The authors have no conflict of interest to declare.
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Affiliation(s)
- M Montazeri
- Academic Unit of Reproductive and Developmental Medicine, The University of Sheffield, Level 4, Jessop Wing, Tree Root Walk, Sheffield S10 2SF, UK
| | - J A Sanchez-Lopez
- Academic Unit of Reproductive and Developmental Medicine, The University of Sheffield, Level 4, Jessop Wing, Tree Root Walk, Sheffield S10 2SF, UK
| | - I Caballero
- Academic Unit of Reproductive and Developmental Medicine, The University of Sheffield, Level 4, Jessop Wing, Tree Root Walk, Sheffield S10 2SF, UK UMR1282 ISP, INRA, Nouzilly, France
| | - N Maslehat Lay
- Academic Unit of Reproductive and Developmental Medicine, The University of Sheffield, Level 4, Jessop Wing, Tree Root Walk, Sheffield S10 2SF, UK
| | - S Elliott
- Academic Unit of Reproductive and Developmental Medicine, The University of Sheffield, Level 4, Jessop Wing, Tree Root Walk, Sheffield S10 2SF, UK
| | - A Fazeli
- Academic Unit of Reproductive and Developmental Medicine, The University of Sheffield, Level 4, Jessop Wing, Tree Root Walk, Sheffield S10 2SF, UK
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Montazeri M, Sanchez-Lopez JA, Caballero I, Maslehat Lay N, Elliott S, López-Martín S, Yáñez-Mó M, Fazeli A. Activation of Toll-like receptor 3 reduces actin polymerization and adhesion molecule expression in endometrial cells, a potential mechanism for viral-induced implantation failure. Hum Reprod 2015; 30:893-905. [PMID: 25605704 DOI: 10.1093/humrep/deu359] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
STUDY QUESTION Does activation of endometrial Toll-like receptor 3 (TLR 3) affect cell receptivity to trophoblast adhesion? SUMMARY ANSWER TLR 3 activation in vitro reduces the attachment of trophoblast cells to endometrial cells by altering the cell cytoskeleton and reducing the expression of adhesion molecules in human endometrial cells. WHAT IS KNOWN ALREADY It is well documented that the presence of an infection at the time of implantation can lead to implantation failure. The female reproductive tract recognizes invading micro-organisms through the innate pathogen recognition receptors such as the TLRs. STUDY DESIGN, SIZE, DURATION Poly I:C was used as a TLR 3-specific ligand and endometrial cells were either treated or not with Poly I:C (treated versus control) in vitro. The experiments were performed in three replicates on three separate days. PARTICIPANTS/MATERIALS, SETTING, METHODS An in vitro assay was developed using RL95-2 (a human endometrial cell line) and JAr (a human trophoblast cell line) cells. Initially, the percentage of attached JAr spheroids to RL95-2 was measured in response to TLR 3 activation. Next, actin polymerization in RL95-2 cells was assessed in response to TLR 2/6, 3 and 5 activation. Phalloidin was used to assess the mean fluorescence intensity of F-actin by flow cytometry or confocal microscopy. Secondly, the influence of TLR 2/6, 3 and 5 activation on the expression of cluster of differentiation 98 (CD98) and β3 integrin was determined. To further understand through which pathways the TLR 3-induced alterations occur, inhibitors were applied for Toll/interleukin-1 receptor domain-containing adaptor inducing interferon-beta (TRIF), myeloid differentiation primary response 88 (MYD88), mitogen-activated protein kinases (MAPK) and nuclear factor pathways. MAIN RESULTS AND THE ROLE OF CHANCE We observed that stimulation of TLR 3 in endometrial cells with different concentrations of Poly I:C led to a reduction in the percentage of trophoblasts attached to the endometrial cells in a dose-dependent manner (P < 0.05). This decrease was consistent in the Poly I:C treated group regardless of the co-incubation time (P < 0.05). In addition, our results demonstrated that actin polymerization and CD98 expression significantly decreased only in response to TLR 3 activation (P < 0.05). Activation of endometrial cells with TLR 2/6, 3 and 5 significantly reduced β3 integrin expression (P < 0.05). These alterations were shown to work via MYD88-MAPK pathways (P < 0.05). LIMITATIONS, REASONS FOR CAUTION This study has been performed in vitro. Future in vivo studies will be required in order to confirm our data. WIDER IMPLICATIONS OF THE FINDINGS This is a novel discovery which extends our current knowledge concerning diagnosis and treatment of viral-induced infertility cases. STUDY FUNDING/COMPETING INTERESTS This research was supported by the COST Action FA1201 (GEMINI) by granting a Short Term Scientific Mission and the Instituto de Salud Carlos III by granting Grant PI11/01645. The authors have no conflict of interest to declare.
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Affiliation(s)
- M Montazeri
- Academic Unit of Reproductive and Developmental Medicine, The University of Sheffield, Level 4, Jessop Wing, Tree Root Walk, Sheffield S10 2SF, UK
| | - J A Sanchez-Lopez
- Academic Unit of Reproductive and Developmental Medicine, The University of Sheffield, Level 4, Jessop Wing, Tree Root Walk, Sheffield S10 2SF, UK
| | - I Caballero
- Academic Unit of Reproductive and Developmental Medicine, The University of Sheffield, Level 4, Jessop Wing, Tree Root Walk, Sheffield S10 2SF, UK UMR1282 ISP, INRA, Nouzilly, France
| | - N Maslehat Lay
- Academic Unit of Reproductive and Developmental Medicine, The University of Sheffield, Level 4, Jessop Wing, Tree Root Walk, Sheffield S10 2SF, UK
| | - S Elliott
- Academic Unit of Reproductive and Developmental Medicine, The University of Sheffield, Level 4, Jessop Wing, Tree Root Walk, Sheffield S10 2SF, UK
| | - S López-Martín
- Unidad de Investigación, Hospital Santa Cristina, Instituto de Investigación Sanitaria Princesa, C/Maestro Amadeo Vives 2, 28009 Madrid, Spain
| | - M Yáñez-Mó
- Unidad de Investigación, Hospital Santa Cristina, Instituto de Investigación Sanitaria Princesa, C/Maestro Amadeo Vives 2, 28009 Madrid, Spain
| | - A Fazeli
- Academic Unit of Reproductive and Developmental Medicine, The University of Sheffield, Level 4, Jessop Wing, Tree Root Walk, Sheffield S10 2SF, UK
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de Miguel P, Caballero I, Rivas FJ, Manera J, de Vicente MA, Gómez Á. [Morbidity observed in a health area: Impact on professionals and funding]. Aten Primaria 2014; 47:301-7. [PMID: 25444085 PMCID: PMC6985634 DOI: 10.1016/j.aprim.2014.07.008] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2013] [Revised: 06/05/2014] [Accepted: 07/09/2014] [Indexed: 11/08/2022] Open
Abstract
Objetivo Analizar, en el contexto de un área sanitaria, la morbilidad desagregada por centro de salud de los pacientes que entran en contacto con los servicios asistenciales para proponer un ajuste a la financiación en el pago per cápita. Diseño Estudio descriptivo, retrospectivo, de la morbilidad observada en los ciudadanos asignados a un área de salud durante el año 2010. Emplazamiento Área 9 de salud de la Comunidad Autónoma de Madrid, que comprende los municipios de Fuenlabrada, Humanes y Moraleja de Enmedio. Incluyendo todos los niveles de atención sanitaria. Participantes La totalidad de ciudadanos con tarjeta sanitaria asignada a un centro de salud del área que haya mantenido contacto con los servicios públicos de salud del propio área. Mediciones Se obtienen y agrupan los contactos codificados de los pacientes mediante el agrupador poblacional 3MTM Clinical Risk Grouping Software (CRG) cada paciente resulta incluido en un grupo homogéneo y excluyente con una morbilidad numérica y sentido clínico. A través de la tarjeta sanitaria se conoce centro de salud, médico de atención primaria, edad y sexo. Resultados Se estratifica la morbilidad por centro de salud, médico de atención primaria, edad y sexo y analizando las diferencias entre cada una de ellas y sus diferentes combinaciones. Conclusiones Se comprueba cómo los valores promedio de morbilidad de la población presentan valores distintos en cada zona básica de salud. Para mantener el principio de equidad sería necesario ajustar pago per cápita y número de tarjetas asignadas en función de la morbilidad observada de la población.
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Affiliation(s)
- Pablo de Miguel
- Área de Control de Gestión, Hospital Universitario de Fuenlabrada, Fuenlabrada, Madrid, España.
| | - Isabel Caballero
- Área de Control de Gestión, Hospital Universitario de Fuenlabrada, Fuenlabrada, Madrid, España
| | - Francisco Javier Rivas
- Área de Gestión de Pacientes, Hospital Universitario de Fuenlabrada, Fuenlabrada, Madrid, España
| | - Jaime Manera
- Departamento de Economía de la Empresa, Facultad de Ciencias Jurídicas y Sociales, Universidad Rey Juan Carlos, Madrid, España
| | - María Auxiliadora de Vicente
- Departamento de Economía Financiera, Facultad de Ciencias Jurídicas y Sociales, Universidad Rey Juan Carlos, Madrid, España
| | - Ángel Gómez
- Área de Gestión de Pacientes, Hospital Universitario de Fuenlabrada, Fuenlabrada, Madrid, España
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Blanco CA, Nimubona D, Caballero I. Prediction of the ageing of commercial lager beer during storage based on the degradation of iso-α-acids. J Sci Food Agric 2014; 94:1988-1993. [PMID: 24307135 DOI: 10.1002/jsfa.6513] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/10/2013] [Revised: 11/30/2013] [Accepted: 12/04/2013] [Indexed: 06/02/2023]
Abstract
BACKGROUND Iso-α-acids and their chemically modified variants are responsible for the bitterness of beer and play a disproportionately large role in the final quality of beer. The current study was undertaken to predict the degradation of commercial lager beers related to changes in the concentration of trans-iso-α-acids during storage by using high-pressure liquid chromatography. RESULTS In the analysed beers the concentration of isohumulone (average concentration 28 mg L(-1)) was greater than that of isocohumulone (20 mg L(-1)) and isoadhumulone (10 mg L(-1)). The kinetic parameters, activation energy and rate constant, of the trans-iso-α-acids were calculated. In the case of dark beers, the activation energy for the degradation of trans-isocohumulones was found to be higher than for trans-isohumulones and trans-isoadhumulones, whereas in pale and alcohol-free beers activation energies for the degradation of the three trans isomers were similar. CONCLUSION The loss of iso-α-acids can be calculated using the activation energy of the degradation of trans-iso-α-acids and the temperature profile of the accelerated ageing. The results obtained in the investigation can be used in the beer industry to predict the alteration of the bitterness of beer during storage.
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Affiliation(s)
- Carlos A Blanco
- Dpto. Ingeniería Agrícola y Forestal (Tecnología de los Alimentos), E.T.S. Ingenierías Agrarias, 34004, Palencia, Universidad de Valladolid, Spain
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Abstract
The demand for light beers has led brewers to innovate by developing light beer. However, these products are not widely accepted in Europe compared to North America and Australasia because of their lack of fullness in the taste and low bitterness compared with conventional beer. The lower levels of some important compounds, present in light beer, can explain these features since they are responsible for the characteristics of the beer. These include alcohol soluble proteins, oligosaccharides, glycerol, polyphenols, iso-α-acids, fusel alcohols and trihydroxy fatty acids. Light beer is produced by several methods, the most commonly used is the addition of glucoamylase to the wort before or during fermentation. This enzyme metabolizes residual carbohydrates (mainly dextrins) transforming them into fermentable sugars and reducing the caloric and alcohol content in this type of beer. Recently pilot studies have been carried out with genetically engineered yeast strains in which amylolytic genes are introduced into the yeast genome in order to metabolize carbohydrate residues. When introducing amylolytic genes, a better fermentability occurs although the fullness of flavor still becomes reduced.
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Affiliation(s)
- Carlos A Blanco
- Dpto. Ingeniería Agrícola y Forestal (Área de Tecnología de los Alimentos), E.T.S. Ingenierías Agrarias, Universidad de Valladolid , Palencia , Spain
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Doroshenko V, Santangelo A, Doroshenko R, Caballero I, Tsygankov S, Rothschild R. XMM-Newtonobservations of 1A 0535+262 in quiescence. EPJ Web of Conferences 2014. [DOI: 10.1051/epjconf/20136406009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Schönherr G, Schwarm F, Falkner S, Becker P, Wilms J, Dauser T, Wolff MT, Wolfram K, West B, Pottschmidt K, Kretschmar P, Ferrigno C, Klochkov D, Nishimura O, Kreykenbohm I, Caballero I, Staubert R. A multi-model approach to X-ray pulsars. EPJ Web of Conferences 2014. [DOI: 10.1051/epjconf/20136402003] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Kretschmar P, Marcu D, Kühnel M, Klochkov D, Pottschmidt K, Staubert R, Wilson-Hodge CA, Jenke PA, Caballero I, Fürst F. Pulse-to-pulse variations in accreting X-ray pulsars. EPJ Web of Conferences 2014. [DOI: 10.1051/epjconf/20136406012] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Kühnel M, Müller S, Kreykenbohm I, Fürst F, Pottschmidt K, Rothschild RE, Caballero I, Grinberg V, Schönherr G, Shrader C, Klochkov D, Staubert R, Ferrigno C, Torrejón JM, Martínez-Núñez S, Wilms J. Luminosity dependent accretion state change in GRO J1008–57. EPJ Web of Conferences 2014. [DOI: 10.1051/epjconf/20136406003] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Nimubona D, Blanco CA, Caballero I, Rojas A, Andrés-Iglesias C. An approximate shelf life prediction of elaborated lager beer in terms of degradation of its iso-α-acids. J FOOD ENG 2013. [DOI: 10.1016/j.jfoodeng.2012.11.019] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Córdoba S, Caballero I, Navalón R, Martínez-Sánchez D, Martínez-Morán C, Borbujo J. Analysis of the Surgical Activity in the Dermatology Department of Fuenlabrada University Hospital, Madrid, Spain, Between 2005 and 2010: Determination of the Standard Operating Times. Actas Dermo-Sifiliográficas (English Edition) 2013. [DOI: 10.1016/j.adengl.2012.05.023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022] Open
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Córdoba S, Caballero I, Navalón R, Martínez-Sánchez D, Martínez-Morán C, Borbujo J. Analysis of Operating Room Activities in the Dermatology Department at Hospital Universitario de Fuenlabrada (2005-2010). Actas Dermo-Sifiliográficas (English Edition) 2013. [DOI: 10.1016/j.adengl.2012.11.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022] Open
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Caballero I, Parrilla I, Almiñana C, del Olmo D, Roca J, Martínez EA, Vázquez JM. Seminal plasma proteins as modulators of the sperm function and their application in sperm biotechnologies. Reprod Domest Anim 2012; 47 Suppl 3:12-21. [PMID: 22681294 DOI: 10.1111/j.1439-0531.2012.02028.x] [Citation(s) in RCA: 82] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Seminal plasma (SP) is known to play an important role in mammalian fertilization. However, the variability found in its composition among species, males and even fractions of the same ejaculate has made difficult to completely understand its effect in sperm function. Proteins are one of the major SP components that modulate sperm functionality. During the last years, intensive work has been performed to characterize the role of these proteins. They have been found to influence sperm capacitation, formation of the oviductal sperm reservoir and sperm-oocyte interaction. Sperm biotechnologies, such as sperm cryopreservation and flow cytometric sex-sorting, that involve a substantial dilution of the SP are detrimental to sperm quality. Attempts to improve the outcome of these biotechnologies include the restoration of SP, which has produced contradictory results. To overcome this variability, different research groups have proposed the application of isolated SP proteins. Herein, we will review the current knowledge in the role of the major SP proteins as modulators of sperm functionality. Furthermore, we will discuss the possible applications of the SP proteins in sperm cryopreservation and flow cytometric sex-sorting.
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Affiliation(s)
- I Caballero
- Academic Unit of Reproductive and Developmental Medicine, Department of Human Metabolism, The Medical School, University of Sheffield, Sheffield, UK.
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Córdoba S, Caballero I, Navalón R, Martínez-Sánchez D, Martínez-Morán C, Borbujo J. Analysis of the surgical activity in the Dermatology Department of Fuenlabrada University Hospital, Madrid, Spain, between 2005 and 2010: determination of the standard operating times. Actas Dermosifiliogr 2012; 104:141-7. [PMID: 22944291 DOI: 10.1016/j.ad.2012.05.005] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2012] [Revised: 05/02/2012] [Accepted: 05/13/2012] [Indexed: 11/29/2022] Open
Abstract
OBJECTIVES To analyze the characteristics of the dermatologic surgery lists and to compare different indicators of surgical productivity. MATERIALS AND METHODS This was a retrospective, descriptive study of the routine surgical activity undertaken in the Dermatology Department of Fuenlabrada University Hospital, Madrid, Spain, between January 2005 and December 2010. Data about the procedures performed and about the surgical lists were analyzed and an analysis was made of operating room occupancy. Surgical productivity was analyzed using standard operating times (SOTs) and surgical scheduling adequacy values (SA1 and SA2). Variables were recorded as relative frequencies. Covariance and the Pearson linear correlation index were used for comparisons. RESULTS The study period included a total of 11,481 surgical sessions, of which 71% were minor surgery and the remainder were major outpatient surgery. A mean of 9.7 operations were performed in each session and the overall operating room occupancy was 71.9%. Four SOT descriptors (minor surgery, multiple minor skin lesions, nail surgery, and malignant tumors with primary closure) were sufficient to classify 86.7% of the operations performed. The operating room down-time was 0.15 SOT (9minutes) in 91.3% of operations. The mean SA1 index was 1.20. Overall surgical productivity measured using the SA2 index was 96.46%. The Pearson correlation showed a statistically significant relationship between the increase in the number of patients per surgical session, the reduction in operating room occupancy, and the increase in SA2 operating room productivity. CONCLUSIONS The application of SOT descriptors enables us to quantify the complexity of the operations included in the surgical waiting list and to obtain indicators for the evaluation of surgical activity, improving efficiency in surgical time management.
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Affiliation(s)
- S Córdoba
- Servicio de Dermatología, Hospital Universitario de Fuenlabrada, Madrid, España.
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Córdoba S, Caballero I, Navalón R, Martínez-Sánchez D, Martínez-Morán C, Borbujo J. Analysis of operating room activities in the dermatology department at Hospital Universitario de Fuenlabrada (2005-2010). Actas Dermosifiliogr 2012; 104:38-43. [PMID: 22831786 DOI: 10.1016/j.ad.2012.04.007] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2012] [Revised: 04/03/2012] [Accepted: 04/30/2012] [Indexed: 11/19/2022] Open
Abstract
OBJECTIVE To analyze data corresponding to patients who underwent dermatological surgery in an operating room. MATERIAL AND METHODS This was a descriptive, retrospective study of operating room activities in the dermatology department of Hospital Universitario de Fuenlabrada in Madrid between January 2005 and December 2010. We analyzed the relative frequency of a range of patient and procedure-related variables, as well as substitution and cancellation rates, the proportional risk of complications, and operating room efficiency. RESULTS In the period analyzed, 11,516 patients underwent surgery: 9351 required minor surgery, 1998 major ambulatory surgery, and 167 surgery requiring hospitalization. Simple excision was the most common procedure (64.7%), and in the majority of cases (85%), the condition was benign. The mean number of patients treated per day was 9.7, and mean operating room efficiency was 71.9%. CONCLUSIONS Accurate record-keeping is essential for analyzing operating room activities and comparing results with those from other centers. The analysis of patterns over time shows the effect of changes made on different indicators. In our case, a decrease in operating room efficiency was seen with an increase in the number of patients per day undergoing surgery.
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Affiliation(s)
- S Córdoba
- Servicio de Dermatología Hospital Universitario de Fuenlabrada, Madrid, España.
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Parrilla I, del Olmo D, Caballero I, Tarantini T, Cuello C, Gil MA, Roca J, Martinez EA, Vazquez JM. The Effect of Glycerol Concentrations on the Post-thawIn VitroCharacteristics of Cryopreserved Sex-sorted Boar Spermatozoa. Reprod Domest Anim 2012; 47:965-74. [DOI: 10.1111/j.1439-0531.2012.02000.x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Olano JM, Caballero I, Escudero A. Soil seed bank recovery occurs more rapidly than expected in semi-arid Mediterranean gypsum vegetation. Ann Bot 2012; 109:299-307. [PMID: 22003238 PMCID: PMC3241582 DOI: 10.1093/aob/mcr260] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/21/2011] [Accepted: 09/05/2011] [Indexed: 05/31/2023]
Abstract
BACKGROUND AND AIMS Seed banks are critical in arid ecosystems and ensure the persistence of species. Despite the importance of seed banks, knowledge about their formation and the extent to which a seed bank can recover after severe perturbation remains scarce. If undisturbed, soil seed banks reflect a long vegetation history; therefore, we would expect that new soil seed banks and those of undisturbed soils require long periods to become similar with respect to both density and composition. In contrast, if soil seed banks are only a short- to mid-term reservoir in which long-term accumulation constitutes only a tiny fraction, they will recover rapidly from the vegetation. To shed light on this question, we evaluated seed bank formation in a semi-arid gypsum community. METHODS Soils from 300 plots were replaced with sterilized soil in an undisturbed semi-arid Mediterranean community. Seasonal changes in seed bank density and composition were monitored for 3 years by comparing paired sterilized and control soil samples at each plot. KEY RESULTS Differences in seed bank density between sterilized and control soil disappeared after 18 months. The composition of sterilized seed banks was correlated with that of the control plots from the first sampling date, and both were highly correlated with vegetation. Nearly 24 % of the seed bank density could be attributed to secondary dispersal. Most seeds died before emergence (66·41-71·33 %), whereas the rest either emerged (14·08-15·48 %) or persisted in the soil (14·59-18·11 %). CONCLUSIONS Seed banks can recover very rapidly even under the limiting and stressful conditions of semi-arid environments. This recovery is based mainly on the seed rain at small scales together with secondary dispersal from intact seed banks in the vicinity. These results emphasize the relevance of processes occurring on short spatial scales in determining community structure.
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Affiliation(s)
- J M Olano
- Área de Botánica, Departamento de Ciencias Agroforestales, Escuela de Ingenierías Agrarias, Univ. de Valladolid, Los Pajaritos s/n, ES-42003 Soria, Spain.
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Blanco CA, Caballero I, Buffa M. Thermal Deterioration of the Trans-/Cis-Ratio of Bittering Agents of Commercial Beers. International Journal of Food Properties 2011. [DOI: 10.1080/10942911003650288] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Posadas SJ, Largo C, Merino JJ, Elvira M, Gonzalez G, Caz V, Caballero I, De Miguel E. Growth hormone upregulates intestinal trefoil factor expression in the ileum of rats after γ-radiation. Exp Biol Med (Maywood) 2011; 236:205-11. [PMID: 21321317 DOI: 10.1258/ebm.2010.009358] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Growth hormone (GH) and intestinal trefoil factor (ITF) have been involved in intestinal protection and repair. This study investigates the effects of GH administration on ITF expression and histological changes associated with tissue injury in an intestinal rat model of radiation. Adult male rats were divided into four groups: control, GH, radiation and radiation + GH (GHyRAD). Ileum samples were obtained at 2 or 72 h after radiation and processed to determine ITF levels (mRNA and protein) by quantitative polymerase chain reaction, Western blot and immunohistochemistry. In addition, goblet ITF-positive cells were identified by immunohistochemistry at 72 h. Our results showed an upregulation of mRNA and protein production of ITF in ileum samples after GH and radiation + GH compared with control and irradiated samples. Irradiation alone affected ITF protein expression. However, irradiation after GH pretreatment produced the highest ITF mRNA and protein levels at both the tested time points. ITF-producing goblet cells were identified in intestinal villi (apical location). GH treatment increased the number of ITF-producing goblet cells, and radiation after GH treatment displayed further increase in the number of ITF-positive goblet cells. GH upregulates ITF in normal intestinal tissue. This upregulation is higher when radiation is given after GH treatment. Nevertheless, the mechanism by which GH regulates ITF expression remains unclear and is still under investigation. These results could open up new avenues in the therapeutic reparative and protective effects of GH during radiotherapy and chemotherapy.
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Affiliation(s)
- Sinforiano J Posadas
- Experimental Surgery Department, La Paz Hospital, Paseo de la Castellana 261, 28046, Madrid, Spain.
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Sancho D, Blanco CA, Caballero I, Pascual A. Free iron in pale, dark and alcohol-free commercial lager beers. J Sci Food Agric 2011; 91:1142-1147. [PMID: 21328359 DOI: 10.1002/jsfa.4298] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2010] [Revised: 12/02/2010] [Accepted: 12/15/2010] [Indexed: 05/30/2023]
Abstract
BACKGROUND A highly sensitive, selective, rapid, reliable and inexpensive method has been developed for the direct analysis of free iron in 40 samples of bottled lager beer. RESULTS A differential pulse adsorptive stripping voltammetry technique at a hanging mercury drop electrode without any sample digestion was performed. The iron content in the analysed samples was in the range of 41 to 165 ppb. CONCLUSIONS The results point out that dark beers keep the highest free iron concentrations, which may be related to the highest amounts of minor ingredients in dark beers. Meanwhile, alcohol-free beers present the lowest free iron concentrations. Some discussion is presented regarding the basis of the free and complexed iron in beer and its participation as an essential element in the human diet.
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Affiliation(s)
- Daniel Sancho
- Dpto. Ingeniería Agrícola y Forestal (Área de Tecnología de los Alimentos), E.T.S. Ingeniarías Agrarias, Universidad de Valladolid, 34004 Palencia, Spain
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Almiñana C, Gil M, Cuello C, Parrilla I, Caballero I, Sanchez-Osorio J, Vazquez J, Roca J, Martinez E. Capability of frozen–thawed boar spermatozoa to sustain pre-implantational embryo development. Anim Reprod Sci 2010; 121:145-51. [DOI: 10.1016/j.anireprosci.2010.05.004] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2010] [Revised: 05/04/2010] [Accepted: 05/12/2010] [Indexed: 11/15/2022]
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Sanchez-Osorio J, Cuello C, Gil M, Parrilla I, Almiñana C, Caballero I, Roca J, Vazquez J, Rodriguez-Martinez H, Martinez E. In vitro postwarming viability of vitrified porcine embryos: Effect of cryostorage length. Theriogenology 2010; 74:486-90. [DOI: 10.1016/j.theriogenology.2010.03.003] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2009] [Revised: 03/01/2010] [Accepted: 03/07/2010] [Indexed: 11/15/2022]
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Posadas SJ, Caz V, Caballero I, Cendejas E, Quilez I, Largo C, Elvira M, De Miguel E. Effects of mannoprotein E1 in liquid diet on inflammatory response and TLR5 expression in the gut of rats infected by Salmonella typhimurium. BMC Gastroenterol 2010; 10:58. [PMID: 20529359 PMCID: PMC2903505 DOI: 10.1186/1471-230x-10-58] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/16/2009] [Accepted: 06/08/2010] [Indexed: 12/18/2022] Open
Abstract
Background Mannoproteins are yeast cell wall componend, and rich in mannose. The use of foods rich in mannose as carbohydrate, could have a bioprotective effect against entrobacteria intestinal infection. Nothing is known about mannoproteins' activity in inflammatory bowel processes induced by entrobacteria. This study investigates the effects of mannoprotein administration via a liquid diet on inflammatory response and TLR5 expression during intestinal tissue injury in a rat model of infection with Salmonella typhimurium. Methods Adult Wistar male rats were divided into three groups: control, and mannoprotein E1 at 10 or 15%. Animals were fed with a liquid diet supplemented or not with mannoprotein E1. Groups were infected by intragastrical administration of S. typhimurium. 24 h post-inoculation samples of spleen, ileum and liver were collected for microbiological studies. Gut samples were processed to determine levels of proinflammatory cytokines (mRNA) and TLR5 (mRNA and protein) by quantitative PCR and Western-blot, and the number of proliferative and apoptotic cells determined by immunohistochemistry. Results Ininfected levels of proinflammatory cytokines and TLR5 were higher in untreated controls than in the animals receiving mannoprotein. Proliferation was similar in both groups, whereas apoptosis was higher in controls. Curiosly, the mannoprotein effect was dose dependent. Conclusions Mannoprotein administration in a liquid diet seems to protect intestinal tissue against S. typhimurium infection. This protection seems to expressed as a lower pro-inflammatory response and TLR5 downregulation in gut epithelium, as well as by an inhibition of apoptosis. Nevertheless, the molecular mechanism by which mannoprotein is able to regulate these responses remain unclear. These results could open up new avenues in the use of mannoproteins as prebiotics in the therapeutic strategy for treatment of inflammatory gut processes induced by microbia.
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Affiliation(s)
- Sinforiano J Posadas
- Experimental Surgery Department, La Paz Hospital, Paseo de la Castellana 261, 28046 Madrid, Spain
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Caballero I, Piedrahita JA. Evaluation of theSerratia MarcescensNuclease (NucA) as a Transgenic Cell Ablation System in Porcine. Anim Biotechnol 2009; 20:177-85. [DOI: 10.1080/10495390903048235] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Spjuth L, Gil MA, Caballero I, Cuello C, Almiñana C, Martínez EA, Lundeheim N, Rodríguez-Martínez H. Pre-pubertal Di(2-ethylhexyl) Phthalate (DEHP) Exposure of Young Boars Did Not Affect SpermIn vitroPenetration Capacity of Homologous Oocytes Post-puberty. ACTA ACUST UNITED AC 2009; 53:141-7. [PMID: 17612872 DOI: 10.1080/01485010701271778] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
Di(2-ethylhexyl) phthalate (DEHP), a plastic softener used in polyvinylchloride (PVC) products (e.g., plastic bags and medical equipment), has been reported to have toxic effects on animal reproduction and is considered an environmental hazard based, mostly, on rodent studies. However, the doses used in these studies are often considerably higher than that presumed in human exposure. In the present study we used young boars as model animals to assess the effects of pre-pubertal DEHP exposure on the ability of spermatozoa to penetrate homologous oocytes in vitro. Eight pairs of cross-bred male boar siblings were used. One brother in each pair became, at random, the test animal exposed to DEHP per os, three times a week, from 3 to 7 weeks of age while the other acted as the control, i.e., placebo-exposed. Semen was collected and frozen between 8 and 9 months of age and stored until spermatozoa were evaluated for their ability to in vitro penetrate in vitro-matured homologous oocytes post-thaw. Both the penetration rate and the number of spermatozoa per oocyte were considered within expected ranges for frozen boar semen of good quality. Penetration rate did not significantly differ (p > 0.05) between the groups with DEHP-exposed: 50%; control: 59%, which could be owing to a large variation between boars, and between replicates. The number of spermatozoa in the ooplasm was low and similar (p > 0.05) between the groups with DEHP-exposed: 1.5 and the control: 1.7. Under the conditions of the present experiment, pre-pubertal exposure to DEHP does not seem to cause a deleterious effect on the in vitro fertilizing ability of frozen spermatozoa post-puberty.
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Affiliation(s)
- Linda Spjuth
- Department of Clinical Sciences, Division of Reproduction, Faculty of Veterinary Medicine and Animal Science, Swedish University of Agricultural Sciences, Uppsala, Sweden.
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Caballero I, Agut M, Armentia A, Blanco CA. Importance of tetrahydroiso alpha-acids to the microbiological stability of beer. J AOAC Int 2009; 92:1160-1164. [PMID: 19714985] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
While beer provides a very stable microbiological environment, a few niche microorganisms are capable of growth in malt, wort, and beer. The production of off-flavors and development of turbidity in the packaged product are due to the growth and metabolic activity of wild yeast, certain lactic acid bacteria (LAB) and anaerobic Gram-negative bacteria. Beer also contains bitter hop compounds, which are toxic to Gram-positive and Gram-negative bacteria, and contribute to preventing the spoilage of this beverage. In the boiling process, the hop alpha-acids (humulones) are isomerized into iso alpha-acids. These products are responsible for the bitter taste of beer, but they also play an essential role in enhancing foam stability. Antibacterial activity of iso alpha-acids and their hydrogenated derivates (rhoiso alpha-acids and tetrahydroiso alpha-acids) in MRS broth and beer have been evaluated against different LAB (Lactobacillus and Pediococcus) for the determination of their beer-stabilizing capabilities. Besides this, we have determined the minimum inhibitory concentration and the bacteriostatic effect of each compound against Pediococcus. We found that tetrahydroiso alpha-acids (added directly to beer during production processes) are the compounds that present the greatest antibacterial activity against the main agents implicated in beer spoilage.
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Affiliation(s)
- Isabel Caballero
- Universidad de Valladolid, Dpto. Ingeniería Agrícola y Forestal, Area de Tecnologia de los Alimentos, E.T.S. Ingeniarías Agrarias, 34004 Palencia, Spain
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Vazquez JM, Parrilla I, Gil MA, Cuello C, Caballero I, Vazquez JL, Roca J, Martínez EA. Improving the efficiency of insemination with sex-sorted spermatozoa. Reprod Domest Anim 2009; 43 Suppl 4:1-8. [PMID: 18803751 DOI: 10.1111/j.1439-0531.2008.01251.x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The sorting of X- and Y-chromosome-bearing spermatozoa by flow cytometry is nowadays one of the most apt assisted-reproduction technologies in livestock production. Potential economic and biological benefits, as well as those related to easier management of herds, have been reported arising out of the application of this technique, especially in cattle. Yet, the sex-sorting procedure induces damage to spermatozoa, affecting their function and fertilizing ability. Different species present varying degrees of susceptibility to damage from the sorting process and each has its own requirements for sex-sorted insemination procedures. Thus, several new protocols and strategies have been designed for the handling of sorted spermatozoa, with the main objective of optimizing their fertilizing ability and the consequent application of flow-cytometric sex-sorting technology. This article reviews current advances in this technology, pointing out the components to be improved before this technology may be widely applied in different domestic species.
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Affiliation(s)
- J M Vazquez
- Department of Animal Medicine and Surgery, Faculty of Veterinary Medicine, University of Murcia, Murcia, Spain.
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Parrilla I, Vazquez JM, Caballero I, Gil MA, Hernandez M, Roca J, Lucas X, Martinez EA. Optimal characteristics of spermatozoa for semen technologies in pigs. Soc Reprod Fertil Suppl 2009; 66:37-50. [PMID: 19848265] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Despite the great potential of sperm technologies such as sperm cryopreservation and sperm sex sorting for the improvement of different aspects of swine production, artificial insemination with fresh or stored semen is currently the only sperm technology used at a commercial scale in the pig industry. The lower reproductive performance associated with the use of these sperm technologies is the reason for such limited use. Since optimal characteristics are required for successful application of frozen-thawed and sex-sorted boar spermatozoa, the present paper summarises the value of the current available methods for their functional assessment as well as the effects of these technologies on boar sperm functionality. In addition, strategies developed to reduce sperm damage and improve the yields of both sperm technologies in swine production are also reviewed with particular attention to the contributions of the authors.
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Affiliation(s)
- I Parrilla
- Department of Animal Medicine and Surgery, Faculty of Veterinary Medicine, University of Murcia, E-30071, Murcia, Spain.
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Almiñana C, Gil MA, Cuello C, Caballero I, Roca J, Vazquez JM, Martinez EA. In VitroFertilization (IVF) in Straws and a Short Gamete Coincubation Time Improves the Efficiency of Porcine IVF. Reprod Domest Anim 2008; 43:747-52. [DOI: 10.1111/j.1439-0531.2007.00995.x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Almiñana C, Gil MA, Cuello C, Caballero I, Roca J, Vazquez JM, Gomez E, Martinez EA. In vitro maturation of porcine oocytes with retinoids improves embryonic development. Reprod Fertil Dev 2008; 20:483-9. [PMID: 18462610 DOI: 10.1071/rd07175] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2007] [Accepted: 01/27/2008] [Indexed: 11/23/2022] Open
Abstract
In the present study, the effects of retinoid metabolite administration during in vitro maturation (IVM) on oocyte maturation, parameters of in vitro fertilisation (IVF) and embryo development were examined. Varying concentrations of 9-cis retinoic acid (RA; 0, 5, 50 and 500 nm; Experiment 1) and all-trans retinol (ROH; 0, 125, 1250 and 12 500 nm; Experiment 2) were included in the maturation medium. Cumulus-oocyte complexes were matured in vitro and inseminated with frozen-thawed spermatozoa. Presumptive zygotes were cultured for 16 h to assess IVF parameters or for 7 days to assess embryo development and quality. In Experiment 1, the oocyte maturation rate to metaphase II was significantly decreased (P < 0.001), with values below 5%, in the presence of the highest concentration of RA (500 nm). However, 5 and 50 nm RA had no effect compared with control. Treatment with 5 nm RA improved the blastocyst development rate (P < 0.001). In Experiment 2, the oocyte maturation rate did not differ between 125 and 1250 nm ROH treatment groups and control. However, treatment with 12 500 nm ROH was deleterious because no matured oocytes were observed following the treatment. The penetration rate was lower in the group treated with 1250 nm ROH compared with the 125 nm ROH-treated and control groups, but the blastocyst formation rate did not differ among the three groups. In conclusion, 5 nm RA in the IVM medium significantly increased the blastocyst formation rate, suggesting that RA may play an important role during IVM.
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Affiliation(s)
- C Almiñana
- Department of Animal Medicine and Surgery, Faculty of Veterinary Medicine, University of Murcia, Campus de Espinardo, 30100 Murcia, Spain
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Vazquez JM, Roca J, Gil MA, Cuello C, Parrilla I, Caballero I, Vazquez JL, Martnez EA. Low-Dose Insemination in Pigs: Problems and Possibilities. Reprod Domest Anim 2008; 43 Suppl 2:347-54. [DOI: 10.1111/j.1439-0531.2008.01183.x] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Toledano A, Alvarez MI, Caballero I, Carmona P, De Miguel E. Immunohistochemical increase in cyclooxygenase-2 without apoptosis in different brain areas of subchronic nicotine- and D-amphetamine-treated rats. J Neural Transm (Vienna) 2008; 115:1093-108. [PMID: 18351285 DOI: 10.1007/s00702-008-0040-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2007] [Accepted: 02/26/2008] [Indexed: 11/25/2022]
Abstract
Cyclooxygenase-2 (COX-2) upregulation has been related to both neurodegeneration and physiological processes. To clarify whether nicotine-induced upregulation of COX-2 occurs, and to analyse its significance, a comparative immunohistochemical and Western blot study was performed on the frontoparietal cortex, hippocampus and cerebellar cortex of rats treated (14 days) with nicotine, D(+)amphetamine (0.35 and 1.16 mg free base/kg/day, respectively), or both drugs simultaneously. None of these treatments promoted neuronal apoptosis. Lipid peroxidation increased in the hippocampus of the nicotine-treated rats and in all the brain regions examined in the D(+)amphetamine rats, but not in the double-treated animals. Both molecules increased the COX-2 content (as determined by the number of immunopositive neurons and the intensity of their immunodeposits) in an area-, layer- and neuron type-dependent manner, in all brain regions in which a large number of COX-2 immunopositive neurons were observed in controls (the somatosensory cortical areas, CA-1, CA-3, the gyrus dentatus, the ectorhinal/perirhinal areas, and the gyrus cingularis). No increase was seen in the motor cortical areas, while a reduction was recorded in the cerebellar cortex; these regions had only a few immunopositive neurons in controls. Western blot analysis revealed a 50-80% increase in COX-2 in the brain cortex and hippocampus of nicotine-treated rats, and similar increases (150-200%) in the cortex of the D(+)amphetamine- and nicotine + D(+)amphetamine-treated rats. Nicotine-induced upregulation of COX-2 seems to be related to neuronal plasticity rather than neurodegeneration. Nicotine agonists might be useful in the treatment of cognitive disorders.
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Affiliation(s)
- A Toledano
- Instituto Cajal, CSIC, Avda. Dr. Arce 37, 28002, Madrid, Spain.
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