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Salazar N, Prieto A, Leal J, Mayo B, Bada-Gancedo J, de los Reyes-Gavilán C, Ruas-Madiedo P. Production of exopolysaccharides by Lactobacillus and Bifidobacterium strains of human origin, and metabolic activity of the producing bacteria in milk. J Dairy Sci 2009; 92:4158-68. [DOI: 10.3168/jds.2009-2126] [Citation(s) in RCA: 98] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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127
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Argüelles García B, Prieto A, Meilán Martínez Á, Fernández Cuadriello E. Paciente con insuficiencia respiratoria y estridor. Rev Clin Esp 2009; 209:400-2. [DOI: 10.1016/s0014-2565(09)72346-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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128
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Prieto A, Nava E, Mesa A, Diaz AC, Seco MA. Metachronous Abrikossoff's tumour of the breast and tongue. CASE REPORTS 2009; 2009:bcr06.2008.0252. [DOI: 10.1136/bcr.06.2008.0252] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
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129
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Sánchez L, Tornero P, Tomas M, De Barrio M, Herrero T, Rueda M, Baeza M, Rubio M, Prieto A. Delayed Type Hypersensitivity to Iodinated Contrast Media: Diagnosis and Cross-reactivity. J Allergy Clin Immunol 2009. [DOI: 10.1016/j.jaci.2008.12.919] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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130
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Prieto A, Tornero P, Rubio M, Fernández-Cruz E, Rodriguez-Sainz C. Missense mutation Thr309Lys in the coagulation factor XII gene in a Spanish family with hereditary angioedema type III. Allergy 2009; 64:284-6. [PMID: 19178407 DOI: 10.1111/j.1398-9995.2008.01764.x] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
BACKGROUND A new type of hereditary angioedema (type III) affecting mainly women with normal C1-inhibitor level and function has been described. Exposition to estrogens is an important precipitating factor. Recently, a missense mutation in the gene of the blood coagulation factor XII (Hageman factor) has been reported in a few families with this type of hereditary angioedema. AIM To study a patient and her family with recurrent swelling attacks during pregnancy. METHODS Complement factors C3 and C4 as well as C1-inhibitor level and function were determined. Genomic DNA was isolated from venous blood samples and screened for mutations in the coagulation factor XII gene. RESULTS C3 and C4 levels as well as C1-inhibitor level and function were normal. A missense mutation Thr309Lys was identified in factor XII gene with a heterozygotic pattern. This mutation was also identified in the mother of the patient, her daughter and her son. CONCLUSION These results support that the mentioned mutation in factor XII gene causes hereditary angioedema type III.
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131
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Prieto A, Zuloaga O, Usobiaga A, Bartolomé L, Fernández LA, Etxebarria N, Ciprain E, Alonso A. Levels and spatial distribution of inorganic and organic contaminants in sediments along the Bilbao estuary. MARINE POLLUTION BULLETIN 2008; 56:2094-2099. [PMID: 18945451 DOI: 10.1016/j.marpolbul.2008.08.027] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/10/2008] [Revised: 07/07/2008] [Accepted: 08/23/2008] [Indexed: 05/27/2023]
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132
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Errekatxo A, Prieto A, Zuloaga O, Usobiaga A, Etxebarria N, Fernández LA. Simultaneous extraction of several persistent organic pollutants in sediment using focused ultrasonic solid-liquid extraction. Anal Bioanal Chem 2008; 392:1471-8. [DOI: 10.1007/s00216-008-2441-x] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2008] [Revised: 09/23/2008] [Accepted: 09/25/2008] [Indexed: 11/30/2022]
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133
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Santamaría F, Nuero O, Alfonso C, Prieto A, Leal J, Reyes F. Cell wall degradation of Fusarium oxysporum f.sp. lycopersici race 2 by lytic enzymes from different Fusarium species for its biocontrol. Lett Appl Microbiol 2008. [DOI: 10.1111/j.1472-765x.1995.tb01327.x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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134
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Montersino S, Prieto A, Muñoz R, de las Rivas B. Evaluation of Exopolysaccharide Production by Leuconostoc mesenteroides Strains Isolated from Wine. J Food Sci 2008; 73:M196-9. [DOI: 10.1111/j.1750-3841.2008.00726.x] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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135
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Medrano S, Guerra E, Prieto A, Vázquez L. Obstrucción intestinal en paciente en tratamiento con acenocumarol. Rev Clin Esp 2008; 208:197-8. [DOI: 10.1157/13117042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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136
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Prieto A, Zuloaga O, Usobiaga A, Etxebarria N, Fernández L, Marcic C, de Diego A. Simultaneous speciation of methylmercury and butyltin species in environmental samples by headspace-stir bar sorptive extraction–thermal desorption–gas chromatography–mass spectrometry. J Chromatogr A 2008; 1185:130-8. [DOI: 10.1016/j.chroma.2008.01.046] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2007] [Revised: 01/02/2008] [Accepted: 01/10/2008] [Indexed: 11/16/2022]
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137
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Delgado A, Usobiaga A, Prieto A, Zuloaga O, de Diego A, Madariaga JM. Optimisation of the headspace-solid phase microextraction for organomercury and organotin compound determination in sediment and biota. J Sep Sci 2008; 31:768-74. [DOI: 10.1002/jssc.200700275] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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138
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Castillo P, Castellano J, Merelo J, Prieto A. Diseño de Redes Neuronales Artificiales mediante Algoritmos Evolutivos. INTELIGENCIA ARTIFICIAL 2007. [DOI: 10.4114/ia.v5i14.758] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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139
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Herrera L, Pomares H, Rojas I, Guillén A, Prieto A, Valenzuela O. Recursive prediction for long term time series forecasting using advanced models. Neurocomputing 2007. [DOI: 10.1016/j.neucom.2006.04.015] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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140
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Guillén A, González J, Rojas I, Pomares H, Herrera L, Valenzuela O, Prieto A. Using fuzzy logic to improve a clustering technique for function approximation. Neurocomputing 2007. [DOI: 10.1016/j.neucom.2006.06.017] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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141
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Prieto A, Zuloaga O, Usobiaga A, Etxebarria N, Fernández LA. Development of a stir bar sorptive extraction and thermal desorption-gas chromatography-mass spectrometry method for the simultaneous determination of several persistent organic pollutants in water samples. J Chromatogr A 2007; 1174:40-9. [PMID: 17706230 DOI: 10.1016/j.chroma.2007.07.054] [Citation(s) in RCA: 121] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2007] [Revised: 07/12/2007] [Accepted: 07/13/2007] [Indexed: 11/23/2022]
Abstract
Stir bar sorptive extraction (SBSE) and thermal desorption followed by capillary gas chromatography coupled to mass spectrometry (SBSE-TD-GC-MS) was applied to the simultaneous determination of ultra-traces of 16 polycyclic aromatic hydrocarbons (PAHs), 12 polychlorinated biphenyls (PCBs), 6 phthalate esters (PEs) and 3 nonylphenols (NPs) in water samples. The parameters that could affect the sorption-desorption efficiency were studied. A Plackett-Burman design was used for the screening of the main effects of the experimental parameters related to the desorption step (desorption time, desorption temperature, desorption flow, cryo-focusing temperature and vent pressure). Afterwards, two central composite designs were used to find the optimal process settings for the extraction and desorption steps. The best analytical compromise conditions for the simultaneous determination of analytes from spiked water samples were found to be: sample volume (20 mL), sodium chloride addition (30%), methanol addition (20%), desorption time (10 min), desorption temperature (300 degrees C), desorption flow (23 mL min(-1)), cryo-focusing temperature (-50 degrees C) and vent pressure (7 psi). Remarkable recovery, repeatability and reproducibility were attained. Furthermore, excellent linearities (r(2) = 0.959-0.999) and low detection limits (0.1-10 ng L(-1)) were also achieved for the congeners studied. The proposed methodology was applied for the simultaneous determination of PAHs, PCBs, PEs and NPs in sea and estuarine waters. The influence of humic acids on the recovery was also studied.
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142
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Vílchez JL, Navalón A, Araujo L, Prieto A. Determination of Danofloxacin and Marbofloxacin in Milk Samples by Micellar Liquid Chromatography with Fluorescence Detection. ANAL LETT 2007. [DOI: 10.1080/00032710600966101] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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143
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Delgado A, Prieto A, Zuloaga O, de Diego A, Madariaga JM. Production of artifact methylmercury during the analysis of certified reference sediments: Use of ionic exchange in the sample treatment step to minimise the problem. Anal Chim Acta 2007; 582:109-15. [PMID: 17386482 DOI: 10.1016/j.aca.2006.08.051] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2006] [Revised: 08/25/2006] [Accepted: 08/25/2006] [Indexed: 10/24/2022]
Abstract
Production of artifact methylmercury (MeHg(+)) during the analysis of two certified reference sediments, CRM-580 and IAEA-405, was investigated. Leaching of the analyte from the solid sample was achieved by ultrasound assisted acidic extraction. The aqueous leachate was either ethylated (NaBEt(4)) or phenylated (NaBPh(4)) using acetic/acetate or citric/citrate to buffer the solution. Preconcentration of the volatile compounds was carried out by extraction with an organic solvent (n-hexane) or solid phase microextraction (SPME). MeHg(+) was finally separated and detected by gas chromatography with atomic emission or mass spectrometry detection (GC-MIP-AED or GC-MS). In all the cases the concentrations obtained for MeHg(+) in the CRM-580 were significantly higher than the certified value. For the IAEA-405, however, the MeHg(+) concentration found was always statistically indistinguishable from the certified value. Experiments were also conducted with synthetic samples, such as aqueous mixtures of MeHg(+) and inorganic mercury (Hg(2+)) or silica-gel spiked with both compounds. The methylation rates found (defined as the percentage of Hg(2+) present in the sample which methylates to give artifact MeHg(+)) ranged from not observable (in certain synthetic aqueous mixtures) to 0.57% (analysis of CRM-580 under certain conditions). As the amount of Hg(2+) available in the sample seems to be the main factor controlling the magnitude of the artifact, several experiments were conducted using an ionic exchange resin (Dowex M-41) in order to minimise the concentration of this chemical in the reaction medium. First, a hydrochloric leachate of the sample was passed through a microcolumn packed with the exchanger. Second, the resin was mixed with the sample prior to extraction with HCl. In both cases, the predominant Hg(2+) species, HgCl(4)(2-), was adsorbed on the resin, whereas MeHg(+), mainly as MeHgCl, remained in solution. Following the second option, a new method to analyse MeHg(+) in conflictive matrices like certain sediments was proposed. This approach produced better results for the CRM-580, but a MeHg(+) concentration slightly, but statistically significant, higher than the reference value was still obtained.
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Perucha E, Reyes E, Prieto A, Alvarez de Mon M, Rodríguez A, Zea A. Chemokine receptor expression by peripheral blood B lymphocytes in patients with primary Sjögren's syndrome: comment on the article by Hansen et al. ARTHRITIS AND RHEUMATISM 2006; 54:1707-8; author reply 1708. [PMID: 16646060 DOI: 10.1002/art.21743] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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145
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De Castro Martinez FJ, Ruiz FJ, Tornero P, De Barrio M, Prieto A. Systemic contact dermatitis due to fusidic acid. Contact Dermatitis 2006; 54:169. [PMID: 16524442 DOI: 10.1111/j.0105-1873.2005.0739a.x] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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146
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Prieto A, Baeza ML, Herrero T, Barranco R, De Castro FJ, Ruiz J, De Barrio M. Contact dermatitis to FuracinR. Contact Dermatitis 2006; 54:126. [PMID: 16487291 DOI: 10.1111/j.0105-1873.2006.0560g.x] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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147
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Pini B, Pelayo F, Ortega J, Anguita M, Prieto A. Implementaciones hardware de redes neuronales artificiales. INTELIGENCIA ARTIFICIAL 2006. [DOI: 10.4114/ia.v1i1.637] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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148
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Sijvarger CC, González JV, Prieto A, Messmer AG, Mallimaci MC, Alonio VL, Teyssié AR, Picconi MA. [Cervical infection epidemiology of human papillomavirus in Ushuaia, Argentina]. Rev Argent Microbiol 2006; 38:19-24. [PMID: 16784128] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/10/2023] Open
Abstract
Genital infection with human papillomavirus (HPV) is decisive in the causation of cervical cancer. In order to evaluate the epidemiology of HPV infection in Ushuaia, Province of Tierra del Fuego, Argentina, 132 endocervical cytobrushes from preneoplastic and neoplastic cases and controls were studied. Detection and typing of the viral genome was performed by polymerase chain reaction, combined with a restriction fragment length polymorphism assay or hybridization. The overall prevalence of HPV infection was 41% in the population examined, with a frequency of 26% in the controls and 71% in the cases under study. The 14-24 age group showed the highest HPV prevalence. The most common viral types in the infected population were HPV 16 (23%), HPV 18 (11%), HPV 33 (8%) and HPV 35 (8%), while high risk viral types were detected in 30% of the samples, 16% of the controls and 60% of the cases. This study provides the first data on the predominant viral types in Ushuaia. Our results show lower levels of infection than in regions with a high incidence of cervical cancer, HPV 16 being the most prevalent viral type. This research may be useful for selecting a specific vaccine targeting the population examined.
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149
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Prieto A, De Barrio M, Infante S, Torres A, Rubio M, Olalde S. Recurrent fixed drug eruption due to metronidazole elicited by patch test with tinidazole. Contact Dermatitis 2005; 53:169-70. [PMID: 16128758 DOI: 10.1111/j.0105-1873.2005.0407a.x] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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150
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San-Blas G, Prieto A, Bernabé M, Ahrazem O, Moreno B, Leal JA. alpha-galf I -->6-alpha-mannopyranoside side chains in Paracoccidioides brasiliensis cell wall are shared by members of the Onygenales, but not by galactomannans of other fungal genera. Med Mycol 2005; 43:153-9. [PMID: 15832558 DOI: 10.1080/13693780410001731556] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022] Open
Abstract
The water-soluble polysaccharide fraction of the cell wall alkali extract (F1SS) from the mycelial phase of the dimorphic fungus Paracoccidioides brasiliensis is compared with F1SS polysaccharides obtained from the Onygenalean mycelial fungi Ascocalvatia alveolata, Onygena equina and Aphanoascus terreus. These polymers were exclusively composed of mannose and galactose. Data from methylation and NMR analyses reveal that F1SS polysaccharides from the four fungi contain the same residues although in different proportions: [-->2,6)-alpha-D-Manp-(1 -->]; [2)-alpha-D-Manp-(1 -->]; [ -->6)-alpha-D-Manp-(1 -->]; and [alpha-D-Galf-(1 -->]. In P. brasiliensis, the repeating unit of the polysaccharide consists of a backbone of [(1 -->6)-alpha-D-Manp] substituted at the 0-2 position by the disaccharide [alpha-D-Galf-(1 -->6)-alpha-D-Manp-(1 -->], while the remaining 0-2 positions are substituted by single residues of mannose or short chains of (1 -->2)-mannose. The other species had a lower proportion of galactofuranose-containing side chains and higher proportion of mannose-containing side chains. The similarities found among the F1SS polysaccharides from P. brasiliensis and the Onygenalean A. alveolata, A. terreus and O. equina, reveal the close relatedness of all these fungi, show differences with polysaccharides from other fungal genera and agree with the molecular evidence provided in the scientific literature for the placement of P. brasiliensis within the Onygenales.
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