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Search Results: 1 - 10 of 335890 matches for " Andrés Bodas-Pinedo "
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Mercury in Canned Tuna in Spain. Is Light Tuna Really Light?  [PDF]
Montserrat González-Estecha, María José Martínez-García, Manuel Fuentes-Ferrer, Andrés Bodas-Pinedo, Alfonso Calle-Pascual, José María Ordó?ez-Iriarte, Cristina Fernández-Pérez, Nieves Martell-Claros, Miguel ángel Rubio-Herrera, Emilia Gómez-Hoyos, José Jesús Guillén-Pérez
Food and Nutrition Sciences (FNS) , 2013, DOI: 10.4236/fns.2013.47A007
Abstract:

In Spain, certain population-based studies have shown high blood mercury (Hg) levels due to the high consumption of fish. Some studies have stated that one of the most consumed fish in Spain is canned tuna. Different Spanish organisms consider that it is safe to consume canned tuna as it supposedly has a low mercury content, particularly in so-called light tuna. However, in Spain light tuna is mainly yellowfin and bigeye tuna, while in other countries it is mainly skipjack tuna. This study analyzed 36 cans of the most popular brands in Spain and examined the influence of the type of tuna, packaging medium (olive oil, sunflower seed oil, water or marinade), different brands, prices and expiration dates. Mercury concentrations (mg/kg) were measured by atomic absorption spectrometry and thermal decomposition amalgamation. The medians observed were (mg/kg): light tuna: 0.314; IQR: 0.205 - 0.594, white tuna: 0.338; IQR: 0.276 - 0.558, skipjack: 0.311; IQR: 0.299 - 0.322, frigate tuna: 0.219; IQR 0.182 - 0.257 and mackerel: 0.042; IQR 0.029 - 0.074. We found statistically significant differences between white tuna, light tuna and mackerel (p = 0.004); light tuna and mackerel (p = 0.002) and white tuna and mackerel (p = 0.006). However, we found no differences between white tuna and light tuna, or among packaging medium, brands, prices or expiration dates. The limit of 0.500 mg/kg of mercury in canned tuna was exceeded by the following percentages of the cans: 33.3% of light tuna, 16.7% of white tuna, and 0% of Skipjack, frigate tuna and mackerel. The mercury content of the cans of Spanish light tuna that were analyzed was variable and high. The results of this study indicate that stricter regulation of Hg in canned tuna is necessary. Until then, it is safer to recommend that vulnerable populations such as children and pregnant women consume canned mackerel, which has a markedly lower mercury content.

PRELIMINARY EVALUATION OF BINDING PROPERTIES OF RANDIA DUMETORUM FRUIT MUCILAGE.
K.S Bodas*
International Journal of Pharmacy and Technology , 2010,
Abstract: The basic aim of present work was to extract the mucilage from Randia dumetorum fruit by using suitable method and to check its suitability for tablet binder. The mucilage was extracted from fruit powder bymaceration technique using water and then precipitated with alcohol in 1:2 proportion (yield 8-9 % w/w).The physicochemical properties of mucilage like moisture content, solubility, density, viscosity, pH,surface tension, swelling index, water absorption capacity and microbial load were determined. The granules were prepared by Wet Granulation technique using Paracetamol as Model drug and mucilage asbinder in concentrations 1-5 % w/w. Then tablets were punched by keeping pressure constant. The granules and tablets were evaluated as per official procedures. In vitro dissolution profiles of tablets werecarried out in Phosphate Buffer pH 5.8. All parameters were compared with standards like acacia (1-5% w/w) and starch (6, 8, 10%w/w). The evaluation data suggested that tablets prepared with Randiadumetorum fruit mucilage as binder showed good results and comparable dissolution profile as that of standards. Also the results were complied with pharmacopoeial limits. Hence, the mucilage from Randiadumetorum fruit can act as suitable binder for conventional tablets instead of synthetic polymers.
Aumento de la mortalidad por cáncer de colon en Chile, 1990-2003
Donoso D,Andrés; Villarroel del P,Luis; Pinedo M,George;
Revista médica de Chile , 2006, DOI: 10.4067/S0034-98872006000200003
Abstract: background: in chile, colorectal cancer is the third cause of mortality due to digestive cancer. aim: to assess the evolution of colon cancer mortality rates in the period 1990-2003. material and methods: information was obtained from demography and vital statistics yearbooks, published by the chilean national statistics institute. mortality tendecies and slopes, were calculated using pearson correlation analysis and linear regression. proportions were compared using chi square. results: there was a significantly rising tendency in mortality for colon cancer in the general population (r= 0.964, p <0.001), in men (r=0.926, p <0.001) and in women (r=0.943, p <0.001). this tendency was not modified if rates were corrected by age. mortality among women was significantly higher in all study years. the increase in mortality rates in the period was 0.175/100,000 inhabitants per year. the higher mortality rates were observed during 2003, reaching 6.2/100,000 inhabitants. conclusions: there was a steady increase in colon cancer mortality during the studied period
Rese as del libro Francisco Bilbao y la experiencia libertaria en América: La propuesta de una Filosofía americana, de Clara Jalif, Universidad Nacional de Cuyo, Ediunc, Mendoza, 2003
Manuel Loyola,Javier Pinedo,Arturo Andrés Roig,Ricardo Salas Astrain
Universum : Revista de Humanidades y Ciencias Sociales , 2005,
Abstract:
Aumento de la mortalidad por cáncer de colon en Chile, 1990-2003 Increase in colon cancer mortality rates in Chile, during the period 1990-2003
Andrés Donoso D,Luis Villarroel del P,George Pinedo M
Revista médica de Chile , 2006,
Abstract: Background: In Chile, colorectal cancer is the third cause of mortality due to digestive cancer. Aim: To assess the evolution of colon cancer mortality rates in the period 1990-2003. Material and methods: Information was obtained from demography and vital statistics yearbooks, published by the Chilean National Statistics Institute. Mortality tendecies and slopes, were calculated using Pearson correlation analysis and linear regression. Proportions were compared using Chi square. Results: There was a significantly rising tendency in mortality for colon cancer in the general population (r= 0.964, p <0.001), in men (r=0.926, p <0.001) and in women (r=0.943, p <0.001). This tendency was not modified if rates were corrected by age. Mortality among women was significantly higher in all study years. The increase in mortality rates in the period was 0.175/100,000 inhabitants per year. The higher mortality rates were observed during 2003, reaching 6.2/100,000 inhabitants. Conclusions: There was a steady increase in colon cancer mortality during the studied period
HLA and Celiac Disease Susceptibility: New Genetic Factors Bring Open Questions about the HLA Influence and Gene-Dosage Effects
Luz María Medrano, Bárbara Dema, Arturo López-Larios, Carlos Maluenda, Andrés Bodas, Natalia López-Palacios, M. ángeles Figueredo, Miguel Fernández-Arquero, Concepción Nú?ez
PLOS ONE , 2012, DOI: 10.1371/journal.pone.0048403
Abstract: Celiac disease (CD) is a chronic inflammatory disorder triggered after gluten ingestion in genetically susceptible individuals. The major genetic determinants are HLA-DQA1*05 and HLA-DQB1*02, which encode the DQ2 heterodimer. These alleles are commonly inherited in cis with DRB1*03:01, which is associated with numerous immune-related disorders, in some cases contributing with a different amount of risk depending on the haplotype context. We aimed at investigating those possible differences involving DRB1*03:01-carrying haplotypes in CD susceptibility. A family (274 trios) and a case-control sample (369 CD cases/461 controls) were analyzed. DRB1*03:01-carrying individuals were classified according to the haplotype present (ancestral haplotype (AH) 8.1, AH 18.2 or non-conserved haplotype) after genotyping of HLA-DRB1, -DQA1, -DQB1, -B8, TNF -308, TNF -376 and the TNFa and TNFb microsatellites. We observe that the AH 8.1 confers higher risk than the remaining DRB1*03:01-carrying haplotypes, and this effect only involves individuals possessing a single copy of DQB1*02. CD risk for these individuals is similar to the one conferred by inherit DQA1*05 and DQB1*02 in trans. It seems that an additional CD susceptibility factor is present in the AH 8.1 but not in other DRB1*03:01-carrying haplotypes. This factor could be shared with individuals possessing DQ2.5 trans, according to the similar risk observed in those two groups of individuals.
Estrutura e propriedades do a?o inoxidável austenítico AISI 316L Grau ASTM F138 nitretado sob plasma à baixa temperatura
Tschiptschin, André Paulo;Pinedo, Carlos Eduardo;
Rem: Revista Escola de Minas , 2010, DOI: 10.1590/S0370-44672010000100023
Abstract: austenitic stainless steels cannot be conventionally nitrided at temperatures near 550°c due to the intense precipitation of chromium nitrides in the diffusion zone. the precipitation of chromium nitrides increases the hardness but severely impairs corrosion resistance. plasma nitriding allows introducing nitrogen in the steel at temperatures below 450°c, forming pre-dominantly expanded austenite (gn), with a crystalline structure best represented by a special triclinic lattice, with a very high nitrogen atomic concentration promoting high compressive residual stresses at the surface, increasing substrate hardness from 4 gpa up to 14 gpa on the nitrided case.
Stenosis in gastric bypass: Endoscopic management
Jesús Espinel,Eugenia Pinedo
World Journal of Gastrointestinal Endoscopy , 2012, DOI: 10.4253/wjge.v4.i7.290
Abstract: Gastric bypass is a treatment option for morbid obesity. Stenosis of the gastrojejunal anastomosis is a recognized complication. The pathophysiological mechanisms involved in the formation of stenosis are not well known. Gastrojejunal strictures can be classified based on time of onset, mechanism of formation, and endoscopic aspect. Diagnosis is usually obtained by endoscopy. The two main treatment alternatives for stomal stricture are: endoscopic dilatation (balloon or bouginage) and surgical revision (open or laparoscopic). Both techniques of dilation [through-the-scope (TTS) balloon dilators, Bougienage dilators] are considered safe, effective, and do not require hospitalization. The optimal technique for dilation of stomal strictures remains to be determined, but many authors prefer the use of TTS balloon catheters. Most patients can be successfully treated with 1 or 2 sessions. The need for reconstructive surgery of a stomal stricture is extremely rare.
A simplified method for stent placement in the distal duodenum: Enteroscopy overtube
Jesús Espinel,Eugenia Pinedo
World Journal of Gastrointestinal Endoscopy , 2011, DOI: 10.4253/wjge.v3.i11.225
Abstract: The treatment of choice for patients with unresectable neoplastic obstruction of the small intestine is the placement of expandable metal stents. However, endoscopic delivery from the distal duodenum can be more difficult. This case, shows the usefulness and technical advantages of the overtube and single balloon enteroscopy in the treatment of neoplastic stenosis affecting the small intestine.
Two-sphincterotomes-in-one-channel method: help in cannulation and sphincterotomy Métodos de dos esfinterotomos en un canal: ayuda para la canulación y esfinterectomía
Jesús Espinel,Eugenia Pinedo
Revista Espa?ola de Enfermedades Digestivas , 2011,
Abstract:
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