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Costa AF, Peral A, Bravo F, Fernández F, Valverde R. Prevalence of basilar artery dolichoectasia in patients with acute ischemic stroke or transient ischemic attack in a single center of Spain. Rev Neurol 2024; 78:269-276. [PMID: 38743020 DOI: 10.33588/rn.7810.2023298] [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: 05/16/2024]
Abstract
INTRODUCTION Basilar artery dolichoectasia (BADE) refers to abnormal enlargement or displacement of the basilar artery (BA). The previously reported prevalence of BADE among patients with stroke is 0.3 to 33.1%, however, it might vary among studied populations. We aim is to determine the prevalence of BADE in patients presenting with acute ischemic stroke (AIS) or transient ischemic attack (TIA) in a Stroke Unit in a single center in Spain. PATIENTS AND METHODS Patients 50 years old or older presenting with AIS or TIA were eligible for inclusion. Demographic and clinical data were prospectively collected. Two neuroradiologists, blind to each other, assessed BA morphology. RESULTS Among 126 patients, 34.1% fulfilled the criteria for BADE (ectasia or dolichosis). BADE was associated with advanced age (p = 0.04). Patients with fetal-type circle of Willis presented smaller BA diameters (2.9 ± 0.1 vs. 3.5 ± 0.1; p < 0.001), whereas patients with lacunar strokes presented a greater diameter than other stroke subtypes (3.8 ± 0.3 mm vs. 3.3 ± 0.1 mm; p = 0.04). DISCUSSION AND CONCLUSIONS In this single-center study of patients presenting with AIS or TIA, the prevalence of BADE (ectasia or dolichosis) is high. Further studies focusing on Spaniards should confirm our results.
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Affiliation(s)
- A F Costa
- Hospital Universitario Reina Sofía, 14004 Córdoba, España
| | - A Peral
- Hospital Universitario Reina Sofía, 14004 Córdoba, España
| | - F Bravo
- Hospital Universitario Reina Sofía, 14004 Córdoba, España
| | - F Fernández
- Hospital Universitario Reina Sofía, 14004 Córdoba, España
| | - R Valverde
- Hospital Universitario Reina Sofía, 14004 Córdoba, España
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Martín-González B, Ortega P, Entem D, Fernández F, Segovia J. Toward the discovery of novel
Bc
states: Radiative and hadronic transitions. Int J Clin Exp Med 2022. [DOI: 10.1103/physrevd.106.054009] [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: 11/07/2022]
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Pradhan P, Chatterjee P, Stevens H, Marmon A, Medrano-Trochez C, Jimenez A, Kippner L, Li Y, Savage E, Gaul D, Fernández F, Gibson G, Kurtzberg J, Kotanchek T, Yeago C, Roy K. Multiomic analysis and computational modeling to identify critical quality attributes for immunomodulatory potency of mesenchymal stromal cells. Cytotherapy 2021. [DOI: 10.1016/s1465324921002826] [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: 10/21/2022]
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Riera H, Colantuoni G, Quintero M, Fernández F. FRI0631-HPR SUPPLEMENTATION WITH CREATININE, GLUTAMINE AND Β-HYDROXY-Β-METHYLBUTYRATE IMPROVES MUSCLE MASS AND STRENGTH AND QUALITY OF LIFE IN PATIENTS WITH SARCOPENIA AND KNEE OSTEOARTHRITIS: THE DIMMUS RANDOMIZED STUDY. Ann Rheum Dis 2020. [DOI: 10.1136/annrheumdis-2020-eular.5777] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Background:Sarcopenia is characterized by progressive loss of muscle mass, strength, and physical function, and often accompanies other diseases such as osteoarthritis (OA)1. Both conditions are also significantly associated with poor quality of life (QoL).Objectives:A randomized controlled study was conducted to evaluate the effectiveness of creatinine, glutamine and β-hydroxy-β-methylbutyrate (HMB) supplementation in enhancing muscle mass and strength, physical function and QoL in adults with sarcopenia and knee OA.Methods:Sixty-two patients aged 40 years and above with sarcopenia diagnosed according to the European Working Group on Sarcopenia and with knee OA according to the criteria of American College of Rheumatology were included in the study DIMMUS. The participants were randomly assigned into two groups of intervention (n=31) and control (n=31). The intervention group received oral nutritional supplementation daily plus standardized exercise programme for 12 weeks and the control group received only rescue analgesic medication and exercise training. Muscle mass (appendicular skeletal muscle mass index [ASMMI] estimated by the Baumgartner et al.’s equation), muscle strength (handgrip strength), physical function (4-m gait speed) and QoL (SARQoL) were measured before and after the 12-week intervention. Safety was also recorded by assessments of adverse events.Results:There was no significant difference in baseline characteristics between the two groups (85.5% women, 63.5 ± 9.6 years, body mass index of 26.8 ± 4.5 kg/m2, 83.9% Kellgren-Lawerence grade II OA and 91.9% mild sarcopenia). A statistically significant improvement in the mean change of ASMMI (3.7 ± 1.0 kg/m2to 3.96 ± 1.1 kg/m2;P=0.0074), handgrip strength (18.8 ± 8.7 kg to 20.5 ± 8.5 kg,P=0.0089), and SARQoL score (59.3 ± 8.8 vs 70.7 ± 16.6;P=0,0003) from baseline to 12 weeks was observed for the intervention group but not for the control group. Both groups showed significant improvements on 4-m gait speed (5.0 ± 0.9 s to 4.4 ± 0.9 s in the intervention group; 5.2 ± 2.9 to 5.0 ± 2.3 m in the control group;P<0.001). One patient reported a treatment-related bad taste in the intervention group.Conclusion:The findings of the present study demonstrated that the combined supplementation of creatinine, glutamine and HMB together with exercise training for 12 weeks may have a positive effect on the muscle mass and strength and QoL in adults with mild sarcopenia and OA. The results provide preliminary experiences and guidance for further clinical trials in both OA and sarcopenic patients.References:[1] Kemmler W, Teschler M, Goisser S, Bebenek M, von Stengel S, Bollheimer LC,et al. Prevalence of sarcopenia in Germany and the corresponding effect of osteoarthritis in females 70 years and older living in the community: results of the FORMoSA study.Clin Interv Aging. 2015;10:1565-73.Disclosure of Interests:None declared
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Prieto B, Vega Ó, Cernuda E, Fernández F, Martínez-Morillo E, Fonseca A, González S, Álvarez F. Implementation of a neonatal program of drepanocitosis screening. Clin Chim Acta 2019. [DOI: 10.1016/j.cca.2019.03.971] [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: 11/25/2022]
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Prieto B, Vega Ó, Fernández F, Martínez-Morillo E, Viejo M, Moreno F, Álvarez F. Ten years of prenatal aneuploidy screening program with combined first-trimester test in a multicentric unit. Clin Chim Acta 2019. [DOI: 10.1016/j.cca.2019.03.1263] [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: 10/26/2022]
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Domínguez A, Salazar Z, Betancourt M, Ducolomb Y, Casas E, Fernández F, Bahena I, Salomón A, Teteltitla M, Martínez R, Chaparro A, Cuapio P, Salazar-López C, Bonilla E. Effect of perfluorodecanoic acid on pig oocyte viability, intracellular calcium levels and gap junction intercellular communication during oocyte maturation in vitro. Toxicol In Vitro 2019; 58:224-229. [PMID: 30946969 DOI: 10.1016/j.tiv.2019.03.041] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2018] [Revised: 03/05/2019] [Accepted: 03/30/2019] [Indexed: 02/07/2023]
Abstract
Perfluorodecanoic acid (PFDA) is a synthetic perfluorinated compound, which has been reported to exert adverse effects on somatic cells. However, its effects on germ cells have not been studied to date. The aim of the present study was to analyze the effects of PFDA on the viability, intracellular calcium levels and gap junction intercellular communication (GJIC) during porcine oocyte maturation in vitro. PFDA negatively impacted oocyte viability (medium lethal concentration, LC50 = 7.8 μM) and maturation (medium inhibition of maturation, IM50 = 3.8 μM). Oocytes exposed to 3.8 μM PFDA showed higher levels of intracellular calcium relative to control oocytes. In addition, GJIC among the cumulus cells and the oocyte was disrupted. The effects of PFDA on oocyte calcium homeostasis and intercellular communication seem to be responsible for the inhibition of oocyte maturation and oocyte death. In addition, since the deleterious effects of PFDA on oocyte viability, maturation and GJIC are significantly stronger than the previously reported effects of another widely used perfluorinated compound (Perfluorooctane sulfonate) in the same model, the use of PFDA in consumer products is questioned.
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Affiliation(s)
- A Domínguez
- Departamento de Ciencias de la Salud, Universidad Autónoma Metropolitana-Iztapalapa, Av. San Rafael Atlixco 186, CP 09340 CDMX, Mexico; Doctorado en Ciencias Biológicas y de la Salud, Universidad Autónoma Metropolitana-Iztapalapa, Av. San Rafael Atlixco 186, CP 09340 CDMX, Mexico
| | - Z Salazar
- Departamento de Ciencias de la Salud, Universidad Autónoma Metropolitana-Iztapalapa, Av. San Rafael Atlixco 186, CP 09340 CDMX, Mexico
| | - M Betancourt
- Departamento de Ciencias de la Salud, Universidad Autónoma Metropolitana-Iztapalapa, Av. San Rafael Atlixco 186, CP 09340 CDMX, Mexico
| | - Y Ducolomb
- Departamento de Ciencias de la Salud, Universidad Autónoma Metropolitana-Iztapalapa, Av. San Rafael Atlixco 186, CP 09340 CDMX, Mexico
| | - E Casas
- Departamento de Ciencias de la Salud, Universidad Autónoma Metropolitana-Iztapalapa, Av. San Rafael Atlixco 186, CP 09340 CDMX, Mexico
| | - F Fernández
- Departamento de Producción Agrícola y Animal, Universidad Autónoma Metropolitana-Xochimilco, Calzada del hueso 1100, CP 04960 CDMX, Mexico
| | - I Bahena
- Departamento de Ciencias de la Salud, Universidad Autónoma Metropolitana-Iztapalapa, Av. San Rafael Atlixco 186, CP 09340 CDMX, Mexico
| | - A Salomón
- Departamento de Ciencias de la Salud, Universidad Autónoma Metropolitana-Iztapalapa, Av. San Rafael Atlixco 186, CP 09340 CDMX, Mexico; Doctorado en Ciencias Biológicas y de la Salud, Universidad Autónoma Metropolitana-Iztapalapa, Av. San Rafael Atlixco 186, CP 09340 CDMX, Mexico
| | - M Teteltitla
- Departamento de Ciencias de la Salud, Universidad Autónoma Metropolitana-Iztapalapa, Av. San Rafael Atlixco 186, CP 09340 CDMX, Mexico; Doctorado en Ciencias Biológicas y de la Salud, Universidad Autónoma Metropolitana-Iztapalapa, Av. San Rafael Atlixco 186, CP 09340 CDMX, Mexico
| | - R Martínez
- Departamento de Ciencias de la Salud, Universidad Autónoma Metropolitana-Iztapalapa, Av. San Rafael Atlixco 186, CP 09340 CDMX, Mexico; Doctorado en Ciencias Biológicas y de la Salud, Universidad Autónoma Metropolitana-Iztapalapa, Av. San Rafael Atlixco 186, CP 09340 CDMX, Mexico
| | - A Chaparro
- Departamento de Ciencias de la Salud, Universidad Autónoma Metropolitana-Iztapalapa, Av. San Rafael Atlixco 186, CP 09340 CDMX, Mexico
| | - P Cuapio
- Clínica de Reproducción Asistida "HISPAREP", Hospital Español, Avenida Ejército Nacional 613, 11520 CDMX, Mexico
| | - C Salazar-López
- Clínica de Reproducción Asistida "HISPAREP", Hospital Español, Avenida Ejército Nacional 613, 11520 CDMX, Mexico
| | - E Bonilla
- Departamento de Ciencias de la Salud, Universidad Autónoma Metropolitana-Iztapalapa, Av. San Rafael Atlixco 186, CP 09340 CDMX, Mexico.
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Entem D, Ortega P, Segovia J, Fernández F. Heavy mesons in the Quark Model. EPJ Web Conf 2019. [DOI: 10.1051/epjconf/201919901012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Since the discovery of theJ/ψ, the quark model was very successful in describing the spectrum and properties of heavy mesons including only q̄ components. However since 2003, with the discovery of theX(3872), many states that can not be accommodated on the naive quark model have been discovered, and they made unavoidable to include higher Fock components on the heavy meson states. We will give an overview of the success of the quark model for heavy mesons and point some of the states that are likely to be more complicated structures such as meson-meson molecules.
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Astudillo P, Alarcón AM, Pérez S, Fernández F, Carmona V, Castro M, Alarcón S. [Psychomotor development from 0 to 4 years in indigenous children. A sistematic literature search]. ACTA ACUST UNITED AC 2018; 89:530-539. [PMID: 30571830 DOI: 10.4067/s0370-41062018005000402] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2017] [Accepted: 03/20/2018] [Indexed: 11/17/2022]
Abstract
INTRODUCTION The objective of this study was to evaluate published articles regarding the development of indigenous children aged 0 to four years. SUBJECTS AND METHOD Systematic literature search. Parti cipants: Primary studies with populations of indigenous children aged 0 to four years. Type of studies: Primary studies with qualitative or quantitative methodologies published in the last ten years until November 2015. Databases: MEDLINE, Digital Library of the University of Girona: CERCADOR, EMBASE, Scielo. SEARCH STRATEGY sensitive and specific. Free terms, MeSH, and Boolean. RESULTS Nine articles remain for analysis. There are six central subjects related to intracultural patterns of expected development in indigenous childhood: 1) physical, 2) language, 3) socio-cognitive, 4) emo tional, 5) teaching-learning, 6) psychosocial, which reveal the existence of categories of sociocultural and spiritual contents. There is no defined period of time associated with the education. Learning is through observation and participation. Development is understood as a whole, intertwining the social, cultural, natural and spiritual. CONCLUSION Spirituality and nature are at the center. Time as a goal to gain skills does not have a cultural function to demonstrate the acquisition of the inherent va lues to the culture. To base the assessment of development exclusively on psychomotor development as monitoring guide is insufficient to assess the integrality and complexity of the advances, abilities, and skills of indigenous children.
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Affiliation(s)
- P Astudillo
- Departamento de Cirugía, Traumatología y Anestesiología, Universidad de La Frontera, Chile
| | - A M Alarcón
- Departamento de Salud Pública, Universidad de La Frontera, Chile
| | - S Pérez
- Universidad Academia de Humanismo Cristiano, Santiago, Chile
| | | | - V Carmona
- Departamento de Metodología de las Ciencias del Comportamiento, Universidad de Barcelona, Spain
| | - M Castro
- Departamento de Salud Pública, Universidad de La Frontera, Chile
| | - S Alarcón
- Departamento de Salud Pública, Universidad de La Frontera, Chile
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Ortega P, Segovia J, Entem D, Fernández F. Threshold effects in hadron spectrum: a new spectroscopy? EPJ Web Conf 2018. [DOI: 10.1051/epjconf/201818202094] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
The exploration of energies above the open-flavor threshold in the meson spectra has led to the appearance of unexpected states difficult to accommodate in the naive picture of a bound state of a quark and an antiquark. Many of such states are located close to meson-meson thresholds, which suggests that molecular structures may be a relevant component in the total wave function of such resonances. In this work, the state of meson-meson molecules calculations is reviewed, using a nonrelativistic constituent quark model that has been applied to a wide range of hadronic observables, and therefore all model parameters are completely constrained. The model has been able to reproduce, among others, the properties of the X(3872), described as a mixture of cc and DD* states, or the spectrum of the P-wave charm-strange mesons, which are well reproduced only if DK and D*K structures are taken into account. We show that such constituent quark model, which is able to describe the ordinary heavy meson spectra, is also capable of providing a good description of many new states recently
reported.
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Berríos P, Fuentes JA, Salas D, Carreño A, Aldea P, Fernández F, Trombert AN. Inhibitory effect of biofilm-forming Lactobacillus kunkeei strains against virulent Pseudomonas aeruginosa in vitro and in honeycomb moth (Galleria mellonella) infection model. Benef Microbes 2017; 9:257-268. [PMID: 29124967 DOI: 10.3920/bm2017.0048] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Biofilms correspond to complex communities of microorganisms embedded in an extracellular polymeric matrix. Biofilm lifestyle predominates in Pseudomonas aeruginosa, an opportunistic Gram negative pathogen responsible for a wide spectrum of infections in humans, plants and animals. In this context, anti-biofilm can be considered a key strategy to control P. aeruginosa infections, thereby more research in the field is required. On the other hand, Lactobacillus species have been described as beneficial due to their anti-biofilm properties and their consequent effect against a wide spectrum of pathogens. In fact, biofilm-forming Lactobacilli seem to be more efficient than their planktonic counterpart to antagonise pathogenic bacteria. In this work, we demonstrated that Lactobacillus kunkeei, a novel Lactobacillus species isolated from honeybee guts, can form biofilms in vitro. In addition, the L. kunkeei biofilm can, in turn, inhibit the formation of P. aeruginosa biofilms. Finally, we found that L. kunkeei strains attenuate infection of P. aeruginosa in the Galleria mellonella model, presumably by affecting P. aeruginosa biofilm formation and/or their stability. Since L. kunkeei presents characteristics of a probiotic, this work provides evidence arguing that the use of this Lactobacillus species in both animals (including insects) and humans could contribute to impair P. aeruginosa biofilm formation.
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Affiliation(s)
- P Berríos
- 1 Escuela de Biotecnología, Facultad de Ciencias, Universidad Mayor, Camino La Pirámide 5750, Huechuraba, Santiago 8580745, Chile
| | - J A Fuentes
- 2 Laboratorio de Genética y Patogénesis Bacteriana, Facultad de Ciencias Biológicas, Universidad Andrés Bello, Av. República 217, Santiago 8370146, Chile
| | - D Salas
- 3 Centro de Genómica y Bioinformática, Facultad de Ciencias, Universidad Mayor, Camino La Pirámide 5750, Huechuraba, Santiago 8580745, Chile
| | - A Carreño
- 4 Center of Applied Nanosciences (CANS), Universidad Andres Bello, Ave. República 275, Santiago 8370146, Chile.,5 Núcleo Milenio de Ingeniería Molecular para Catálisis y Biosensores (MECB), ICM, Av. República 275, Santiago 8370146, Chile
| | - P Aldea
- 6 CEAPI Mayor, Universidad Mayor, Camino La Pirámide 5750, Huechuraba, Santiago 8580745, Chile
| | - F Fernández
- 3 Centro de Genómica y Bioinformática, Facultad de Ciencias, Universidad Mayor, Camino La Pirámide 5750, Huechuraba, Santiago 8580745, Chile
| | - A N Trombert
- 3 Centro de Genómica y Bioinformática, Facultad de Ciencias, Universidad Mayor, Camino La Pirámide 5750, Huechuraba, Santiago 8580745, Chile
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Reátegui J, Herrera S, Boluarte J, Fernández F, Pacheco V, Bernardi S. Comparación de tres técnicas en la preparación de nuestras para la cristalización del flujo cérvical en bovinos lecheros. SPERMOVA 2017. [DOI: 10.18548/aspe/0005.11] [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: 11/19/2022] Open
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Entern D, Ortega P, Fernández F. The non-perturbative unquenched quark model. EPJ Web Conf 2017. [DOI: 10.1051/epjconf/201713706008] [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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Reategui J, Aquise G, Fernández F, Cuadros S, Cáceres A, Bernardi S, MA P. Citologia endometrial como indicador de endometritis subclinica en vacas lecheras holstein friesian versus jersey. SPERMOVA 2016. [DOI: 10.18548/aspe/0004.10] [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: 11/19/2022] Open
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Delgado-Goñi T, Ortega-Martorell S, Ciezka M, Olier I, Candiota AP, Julià-Sapé M, Fernández F, Pumarola M, Lisboa PJ, Arús C. MRSI-based molecular imaging of therapy response to temozolomide in preclinical glioblastoma using source analysis. NMR Biomed 2016; 29:732-743. [PMID: 27061401 DOI: 10.1002/nbm.3521] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [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: 10/12/2015] [Revised: 02/14/2016] [Accepted: 02/23/2016] [Indexed: 06/05/2023]
Abstract
Characterization of glioblastoma (GB) response to treatment is a key factor for improving patients' survival and prognosis. MRI and magnetic resonance spectroscopic imaging (MRSI) provide morphologic and metabolic profiles of GB but usually fail to produce unequivocal biomarkers of response. The purpose of this work is to provide proof of concept of the ability of a semi-supervised signal source extraction methodology to produce images with robust recognition of response to temozolomide (TMZ) in a preclinical GB model. A total of 38 female C57BL/6 mice were used in this study. The semi-supervised methodology extracted the required sources from a training set consisting of MRSI grids from eight GL261 GBs treated with TMZ, and six control untreated GBs. Three different sources (normal brain parenchyma, actively proliferating GB and GB responding to treatment) were extracted and used for calculating nosologic maps representing the spatial response to treatment. These results were validated with an independent test set (7 control and 17 treated cases) and correlated with histopathology. Major differences between the responder and non-responder sources were mainly related to the resonances of mobile lipids (MLs) and polyunsaturated fatty acids in MLs (0.9, 1.3 and 2.8 ppm). Responding tumors showed significantly lower mitotic (3.3 ± 2.9 versus 14.1 ± 4.2 mitoses/field) and proliferation rates (29.8 ± 10.3 versus 57.8 ± 5.4%) than control untreated cases. The methodology described in this work is able to produce nosological images of response to TMZ in GL261 preclinical GBs and suitably correlates with the histopathological analysis of tumors. A similar strategy could be devised for monitoring response to treatment in patients. Copyright © 2016 John Wiley & Sons, Ltd.
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Affiliation(s)
- T Delgado-Goñi
- Departament de Bioquímica i Biologia Molecular, Universitat Autònoma de Barcelona, Cerdanyola del Vallès, Spain
- Networking Research Center on Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Universitat Autònoma de Barcelona, Cerdanyola del Vallès, Spain
- Division of Radiotherapy and Imaging, The Institute of Cancer Research and The Royal Marsden NHS Foundation Trust, Sutton, Surrey, UK
| | - S Ortega-Martorell
- Networking Research Center on Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Universitat Autònoma de Barcelona, Cerdanyola del Vallès, Spain
- Department of Mathematics and Statistics, Liverpool John Moores University, Liverpool, UK
| | - M Ciezka
- Departament de Bioquímica i Biologia Molecular, Universitat Autònoma de Barcelona, Cerdanyola del Vallès, Spain
- Networking Research Center on Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Universitat Autònoma de Barcelona, Cerdanyola del Vallès, Spain
- Institut de Biotecnologia i de Biomedicina, Universitat Autònoma de Barcelona, Cerdanyola del Vallès, Spain
| | - I Olier
- Institute for Science and Technology in Medicine, Keele University, Stoke-On-Trent, UK
- Centre for Health Informatics, Institute of Population Health University of Manchester, Manchester, UK
| | - A P Candiota
- Departament de Bioquímica i Biologia Molecular, Universitat Autònoma de Barcelona, Cerdanyola del Vallès, Spain
- Networking Research Center on Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Universitat Autònoma de Barcelona, Cerdanyola del Vallès, Spain
- Institut de Biotecnologia i de Biomedicina, Universitat Autònoma de Barcelona, Cerdanyola del Vallès, Spain
| | - M Julià-Sapé
- Departament de Bioquímica i Biologia Molecular, Universitat Autònoma de Barcelona, Cerdanyola del Vallès, Spain
- Networking Research Center on Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Universitat Autònoma de Barcelona, Cerdanyola del Vallès, Spain
- Institut de Biotecnologia i de Biomedicina, Universitat Autònoma de Barcelona, Cerdanyola del Vallès, Spain
| | - F Fernández
- Networking Research Center on Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Universitat Autònoma de Barcelona, Cerdanyola del Vallès, Spain
- Departament de Medicina i Cirurgia Animals, Universitat Autònoma de Barcelona, Cerdanyola del Vallès, Spain
| | - M Pumarola
- Networking Research Center on Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Universitat Autònoma de Barcelona, Cerdanyola del Vallès, Spain
- Departament de Medicina i Cirurgia Animals, Universitat Autònoma de Barcelona, Cerdanyola del Vallès, Spain
| | - P J Lisboa
- Department of Mathematics and Statistics, Liverpool John Moores University, Liverpool, UK
| | - C Arús
- Departament de Bioquímica i Biologia Molecular, Universitat Autònoma de Barcelona, Cerdanyola del Vallès, Spain
- Networking Research Center on Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Universitat Autònoma de Barcelona, Cerdanyola del Vallès, Spain
- Institut de Biotecnologia i de Biomedicina, Universitat Autònoma de Barcelona, Cerdanyola del Vallès, Spain
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Mas M, Mañé N, Fernández F, Gallego D, Pumarola M, Jiménez M. P2Y(1) receptors mediate purinergic relaxation in the equine pelvic flexure. Vet J 2016; 209:74-81. [PMID: 26831180 DOI: 10.1016/j.tvjl.2016.01.002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2015] [Revised: 11/11/2015] [Accepted: 01/01/2016] [Indexed: 12/12/2022]
Abstract
In the equine large intestine, the knowledge of the basic mechanisms underlying motility function is crucial to properly treat motility disorders. P2Y1 receptors are responsible for mediating purinergic colonic relaxation in several species. In vitro experimental studies of the circular muscle from the equine pelvic flexure (n = 6) were performed to characterize inhibitory and excitatory neuromuscular transmission. Electrophysiological studies showed that electrical field stimulation (EFS) evoked biphasic inhibitory junction potentials (IJPs) in smooth muscle cells: a fast IJP (IJPf) followed by a sustained IJP (IJPs). IJPs was sensitive to L-NNA 1 mM (a nitric oxide synthase inhibitor) (P <0.01), while IJPf was abolished by MRS2500 1 µM (a P2Y1 receptor antagonist) (P <0.001). EFS (5 Hz for 2 min) in the organ bath inhibited rhythmic contractions to 3.0 ± 2.5% of basal area under the curve (P <0.0001). EFS under MRS2500 1 µM or L-NNA 1 mM incubation inhibited contractions to 6.0 ± 2.8% (P <0.05) and 24.4 ± 11.3% respectively (P <0.05). Combination of MRS2500 1 µM and L-NNA 1 mM completely reversed the EFS-induced inhibition of colonic motility. Non-nitrergic, non-purinergic conditions were used to reveal voltage-dependent EFS-induced contractions sensitive to atropine 1 µM (P <0.001) and, therefore, cholinergic. In conclusion, nerve-mediated relaxation and contraction in the equine pelvic flexure involve the same mechanisms as those observed in the human colon. P2Y1 receptors mediate purinergic relaxations and are potential targets for the treatment of equine colonic motor disorders.
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Affiliation(s)
- M Mas
- Department of Cell Biology, Physiology and Immunology and Neuroscience Institute, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - N Mañé
- Department of Cell Biology, Physiology and Immunology and Neuroscience Institute, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - F Fernández
- Department of Animal Medicine and Surgery, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - D Gallego
- Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd), Instituto de Salud Carlos III, Barcelona, Spain
| | - M Pumarola
- Department of Animal Medicine and Surgery, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - M Jiménez
- Department of Cell Biology, Physiology and Immunology and Neuroscience Institute, Universitat Autònoma de Barcelona, Barcelona, Spain; Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd), Instituto de Salud Carlos III, Barcelona, Spain.
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Soto-Alonso G, Cruz-Medina J, Caballero-Pérez J, Arvizu-Hernández I, Ávalos-Esparza L, Cruz-Hernández A, Romero-Gómez S, Rodríguez A, Pastrana-Martínez X, Fernández F, Loske A, Campos-Guillén J. Isolation of a conjugative F-like plasmid from a multidrug-resistant Escherichia coli strain CM6 using tandem shock wave-mediated transformation. J Microbiol Methods 2015; 114:1-8. [DOI: 10.1016/j.mimet.2015.04.007] [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] [Received: 04/11/2015] [Accepted: 04/20/2015] [Indexed: 10/23/2022]
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Hernández AL, Casquel R, Holgado M, Cornago I, Sanza FJ, Santamaría B, Maigler M, Fernández F, Lavín A, Laguna MF. Arrays of resonant nanopillars for biochemical sensing. Opt Lett 2015; 40:2370-2. [PMID: 26393742 DOI: 10.1364/ol.40.002370] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
In this Letter, we demonstrate for the first time the experimental capability for the biochemical sensing of resonant nanopillars (RNPs) arrays. These arrays are fabricated over a glass substrate and are optically integrated from the backside of this substrate. The reflectivity profiles of the RNPs arrays are measured by infiltrating different ethanol fractions in water in order to evaluate the optical response for the different refractive indexes, which range from 1.330 to 1.342. A linear fit of the resonant modes shift is observed as a function of the bulk refractive index of the liquid infiltrated. For the type of transducer analyzed, a relative sensitivity of 10017 cm(-1)/Refractive Index Unit (RIU) is achieved, allowing us to reach a competitive Limit of Detection (LoD) in the order of 1×10(-5) RIU.
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Deviers A, Fernández F, Dally C, Mogicato G, Delverdier M, Cauzinille L, Gnirs K, Anor S, de la Fuente C, Pumarola M. Histopathological and Immunohistochemical Evaluation of Twenty Spontaneous Canine Gliomas Suggests the Involvement of Cancer Stem Cells. J Comp Pathol 2015. [DOI: 10.1016/j.jcpa.2014.10.025] [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: 11/30/2022]
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Vicente-Sánchez J, Nicolás E, Pedrero F, Alarcón JJ, Maestre-Valero JF, Fernández F. Arbuscular mycorrhizal symbiosis alleviates detrimental effects of saline reclaimed water in lettuce plants. Mycorrhiza 2014; 24:339-48. [PMID: 24287607 DOI: 10.1007/s00572-013-0542-7] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/09/2013] [Accepted: 11/12/2013] [Indexed: 05/07/2023]
Abstract
The present study evaluated the effects of inoculation with arbuscular mycorrhizal fungi (AMF; Glomus iranicum var. tenuihypharum sp. nova) on the physiological performance and production of lettuce plants grown under greenhouse conditions and supplied with reclaimed water (RW; urban-treated wastewater with high electrical conductivity; 4.19 dS m(-1)). Four treatments, fresh water, fresh water plus AMF inoculation, RW and RW plus AMF inoculation, were applied and their effects, over time, analyzed. Root mycorrhizal colonization, plant biomass, leaf-ion content, stomatal conductance and net photosynthesis were assessed. Overall, our results highlight the significance of the AMF in alleviation of salt stress and their beneficial effects on plant growth and productivity. Inoculated plants increased the ability to acquire N, Ca, and K from both non-saline and saline media. Moreover, mycorrhization significantly reduced Na plant uptake. Under RW conditions, inoculated plants also showed a better performance of physiological parameters such as net photosynthesis, stomatal conductance and water-use efficiency than non-mycorrhizal plants. Additionally, the high concentration of nutrients already dissolved in reclaimed water suggested that adjustments in the calculation of the fertigation should be conducted by farmers. Finally, this experiment has proved that mycorrhization could be a suitable way to induce salt stress resistance in iceberg lettuce crops as plants supplied with reclaimed water satisfied minimum legal commercial size thresholds. Moreover, the maximum values of Escherichia coli in the reclaimed water were close to but never exceeded the international thresholds established (Spanish Royal Decree 1620/2007; Italian Decree, 2003) and hence lettuces were apt for sale.
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Affiliation(s)
- J Vicente-Sánchez
- SYMBORG.SL, Campus de Espinardo 7. Edificio CEEIM, CP 30100, Murcia, Spain
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El Amrani FB, Guerra S, Aguirre-Rueda D, Mauricio MD, Marchio P, Vila JM, Vallés SL, Fernández F, Aldasoro M. Anti-inflammatory and antioxidant effects of ranolazine on primary cultured astrocytes. Crit Care 2014. [PMCID: PMC4069368 DOI: 10.1186/cc13637] [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] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022] Open
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Sannazzaro G, Barabash V, Kang S, Fernandez E, Kalinin G, Obushev A, Martínez V, Vázquez I, Fernández F, Guirao J. Development of design Criteria for ITER In-vessel Components. Fusion Engineering and Design 2013. [DOI: 10.1016/j.fusengdes.2013.01.019] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Curcio D, Fernández F, Vergara J, Vazquez W, Luna C. Late Onset Ventilator-Associated Pneumonia Due to Multidrug-Resistant Acinetobacter spp.: Experience with Tigecycline. J Chemother 2013; 21:58-62. [DOI: 10.1179/joc.2009.21.1.58] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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Gomez A, Fernández F, Carballo A, Paulos A, Peleteiro P, Parades J. Intraoperative radiotherapy (IORT). Rep Pract Oncol Radiother 2013. [DOI: 10.1016/j.rpor.2013.03.681] [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: 11/25/2022] Open
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26
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Domingo C, de-San-Pedro M, García-Fusté M, Romero M, Amgarou K, Fernández F. Estimation of the response function of a PADC based neutron dosimeter in terms of fluence and Hp(10). RADIAT MEAS 2013. [DOI: 10.1016/j.radmeas.2012.02.016] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Sánchez-Doblado F, Domingo C, Gómez F, Sánchez-Nieto B, Muñiz JL, García-Fusté MJ, Expósito MR, Barquero R, Hartmann G, Terrón JA, Pena J, Méndez R, Gutiérrez F, Guerre FX, Roselló J, Núñez L, Brualla-González L, Manchado F, Lorente A, Gallego E, Capote R, Planes D, Lagares JI, González-Soto X, Sansaloni F, Colmenares R, Amgarou K, Morales E, Bedogni R, Cano JP, Fernández F. Estimation of neutron-equivalent dose in organs of patients undergoing radiotherapy by the use of a novel online digital detector. Phys Med Biol 2012; 57:6167-91. [DOI: 10.1088/0031-9155/57/19/6167] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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28
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Acién P, Bataller A, Fernández F, Acién MI, Rodríguez JM, Mayol MJ. New cases of accessory and cavitated uterine masses (ACUM): a significant cause of severe dysmenorrhea and recurrent pelvic pain in young women. Hum Reprod 2012; 27:683-94. [PMID: 22252088 DOI: 10.1093/humrep/der471] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023] Open
Abstract
BACKGROUND To raise awareness about the accessory and cavitated uterine masses (ACUM) with functional endometrium as a different entity from adult adenomyosis and to highlight the importance of a correct diagnosis, we studied four new cases of ACUM and 15 cases reported as juvenile cystic adenomyoma (JCA) by reviewing the literature from the last year. This entity is problematic because of a broad differential diagnosis, including rudimentary and cavitated uterine horns; and is generally underdiagnosed, being more frequent than previously thought. METHODS We report four cases of young women who underwent surgery in our hospital from January to July 2011 after presenting with an ACUM. We also reviewed and tabulated the cases from literature beginning in 2010. Main outcome measures were diagnostic tools, surgical and histopathological findings and improvement of symptoms. RESULTS The addition of the four cases reported here to the 15 published as JCA raises the total number of cases of ACUMs to 19, which is more than all of the cases reported prior to 2010. In our cases, it is interesting to highlight that one of them also had an adjacent accessory rudimentary tube and another had two ACUMs at the same location. All patients suffered from severe dysmenorrhea and pelvic pain and were young women. Suspicion, transvaginal ultrasound and magnetic resonance image were found to be the best diagnostic tools. Most of the cases were treated by laparoscopic tumorectomy. CONCLUSIONS ACUMs are generally underdiagnosed and often reported as JCAs but they are not adenomyosis. Early surgical treatment involving the laparoscopic or laparotomic removal of the mass could prevent the usual prolonged suffering of these young women. In our opinion, this entity is a new variety of Müllerian anomaly.
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Affiliation(s)
- P Acién
- Services of Obstetrics and Gynaecology, University Hospital of San Juan, San Juan, Spain.
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Segovia J, Albertus C, Hernández E, Fernández F, Entem D. The nature of the orbitally excited charmed-strange mesons through nonleptonic B→ D(*)DsJ(*)decays. EPJ Web of Conferences 2012. [DOI: 10.1051/epjconf/20123705003] [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: 11/15/2022] Open
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30
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Chávez F, Fernández F, Gacto M, Alcalá R. Automatic Laser Pointer Detection Algorithm for Environment Control Device Systems Based on Template Matching and Genetic Tuning of Fuzzy Rule-Based Systems. INT J COMPUT INT SYS 2012. [DOI: 10.1080/18756891.2012.685327] [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: 10/26/2022] Open
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31
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San-Segundo R, Montero JM, Córdoba R, Sama V, Fernández F, D’Haro LF, López-Ludeña V, Sánchez D, García A. Design, development and field evaluation of a Spanish into sign language translation system. Pattern Anal Appl 2011. [DOI: 10.1007/s10044-011-0243-9] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Domingo C, García-Fusté M, Morales E, Amgarou K, Terrón J, Roselló J, Brualla L, Nuñez L, Colmenares R, Gómez F, Hartmann G, Sánchez-Doblado F, Fernández F. Neutron spectrometry and determination of neutron ambient dose equivalents in different LINAC radiotherapy rooms. RADIAT MEAS 2010. [DOI: 10.1016/j.radmeas.2010.05.023] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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34
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Valle L, Camba M, Fernández F, Paz J, Sanjurjo A, De La Fuente Aguado J. [Bacterial endogenous endophthalmitis]. ACTA MEDICA PORT 2010; 23:1127-1132. [PMID: 21627889] [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] [Received: 04/02/2009] [Accepted: 05/29/2009] [Indexed: 05/30/2023]
Abstract
Endogenous bacterial endophthalmitis is an uncommon disease, secondary to hematogenous spread of a septic focus. Despite advances in diagnostic and therapeutic methods, it remains a potential cause of blindness. We report a case of a diabetic patient with endogenous endophthalmitis of the right eye secondary to an Escherichia coli bacteremia of urinary origin. The evolution was torpid, with loss of visual acuity and evisceration of the right eye.
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Affiliation(s)
- Luisa Valle
- Serviço de Medicina Interna, Hospital Povisa (Vigo), Spain
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35
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Durán A, Arévalo-López A, Castillo-Martínez E, García-Guaderrama M, Moran E, Cruz M, Fernández F, Alario-Franco M. Magneto-thermal and dielectric properties of biferroic YCrO3 prepared by combustion synthesis. J SOLID STATE CHEM 2010. [DOI: 10.1016/j.jssc.2010.06.001] [Citation(s) in RCA: 79] [Impact Index Per Article: 5.6] [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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36
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Hernanz F, García-Somacarrera E, Fernández F. The assessment of lymph nodes missed in mesenteric tissue after standard dissection of colorectal cancer specimens. Colorectal Dis 2010; 12:e57-60. [PMID: 19575743 DOI: 10.1111/j.1463-1318.2009.01987.x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
OBJECTIVE We studied fresh mesenteric and mesorectal tissue after standard dissection of colorectal cancer specimens using a clearing method to evaluate lymph nodes (LN) that could have been missed. METHOD After traditional dissection, 50 consecutive unfixed residual mesenteric and mesorectal tissues were entirely managed by a new clearing solution, which incorporates hydrochloric acid obtaining a really good degree of fat dissolution, facilitating the identification of missed LNs. RESULTS By fat clearance, 498 (mean per specimen, 10) additional LNs were found, most of them (83%) varying in size from 1 to 5 mm. and 22 (4.41%) LNs revealed tumour metastases. In two rectal carcinoma specimens that had been treated by neoadjuvant chemoradiotherapy, no LNs were found by traditional dissection; after checking by the clearing method, additional LNs were harvested in both. Three patients were reclassified and upstaged. CONCLUSION According to our findings, after standard dissection in the remaining mesentery of colorectal specimen there are missed positive LNs, which should be evaluated to avoid pathological understaging.
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Affiliation(s)
- F Hernanz
- Department of Surgery, Faculty of Medicine, University Hospital Marqués de Valdecilla, Cantabria University, Santander, Spain.
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37
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Affiliation(s)
- M Barrandeguy
- Instituto de Virología, INTA, CC 25 (1712) Castelar, Buenos Aires, Argentina.
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Parreño V, Marcoppido G, Vega C, Garaicoechea L, Rodriguez D, Saif L, Fernández F. Milk supplemented with immune colostrum: protection against rotavirus diarrhea and modulatory effect on the systemic and mucosal antibody responses in calves experimentally challenged with bovine rotavirus. Vet Immunol Immunopathol 2010; 136:12-27. [PMID: 20138373 DOI: 10.1016/j.vetimm.2010.01.003] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2009] [Accepted: 01/18/2010] [Indexed: 10/19/2022]
Abstract
Group A bovine rotavirus (BRV) is the major cause of neonatal calf diarrhea worldwide. As a preventive strategy, we evaluated the protection and immunomodulation in two groups of BRV-inoculated calves. All calves received control colostrum (CC; VN=65,536; IgG(1)=16,384) prior to gut closure followed by the milk supplemented with immune colostrum (VN=1,048,576; IgG(1)=262,144), twice a day, for 14 days. Calves received milk supplemented with 0.8% immune colostrum [(Gp 1) VN=16,384; IgG(1)=4096] or milk supplemented with 0.4% immune colostrum [(Gp 2) VN=1024; IgG(1)=1024]. Calves receiving CC or colostrum deprived calves (CD) fed antibody (Ab) free milk served as controls (Gp 3 and 4). Calves were inoculated with virulent BRV IND at 2 days of age. Group 1 calves (milk IgG(1) 4096) showed 80% protection against BRV diarrhea and significantly reduced virus shedding. At 21 post-inoculation days (PID), the antibody secreting cell (ASC) responses of Gp 1 calves were limited mainly to duodenal and jejunal lamina propria (LP) with limited or no responses in systemic sites (spleen and PBL) and mesenteric lymph nodes. The profile of serum and fecal Ab responses as well as the ASC responses was also modulated by the presence of passive IgG(1) Abs and probably other colostrum components, toward higher titers of IgA Ab in serum and feces and a greater number of IgA ASC in the proximal intestine, reflecting positive modulation by colostrum toward this isotype associated with optimal protection of the intestinal mucosa. After challenge, at PID 21, all calves in Gp 1 and 2 were fully protected against diarrhea and only 1 of 5 calves in Gp 1 shed virus asymptomatically, indicating that the passive Ab treatment for 14 days was effective in protecting most of the animals after a first and a second virus exposure. The final outcome was a positive modulation of the mucosal immune responses and a high protection rate against diarrhea and virus shedding during the period of peak susceptibility to BRV infection.
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Affiliation(s)
- V Parreño
- Instituto de Virología, CICV y A - INTA, CC 25, 1712 Castelar, Bs. As., Argentina.
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Domingo C, Amgarou K, García-Fusté M, Garcia-Orellana J, Morales E, Bouassoule T, Castelo J, Fernández F. Neutron dosimetric studies of density/moisture gauge operators during transport and usage. RADIAT MEAS 2009. [DOI: 10.1016/j.radmeas.2009.10.020] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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González J, Metón I, Salgado M, Caballero A, Fernández F, Baanante I. Effects of aminooxyacetate on alanine and aspartate aminotransferase activity in Sparus aurata. N Biotechnol 2009. [DOI: 10.1016/j.nbt.2009.06.793] [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: 11/26/2022]
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Fernández F, Costantini V, Barrandeguy M, Parreño V, Schiappacassi G, Maliandi F, Leunda M, Odeón A. Evaluation of experimental vaccines for bovine viral diarrhea in bovines, ovines and guinea pigs. Rev Argent Microbiol 2009; 41:86-91. [PMID: 19623897] [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] Open
Abstract
The bovine viral diarrhea virus (BVDV) infection control should be based on elimination of persistently infected animals and on immunization through vaccination, to prevent fetal infection. However, the efficacy of inactivated BVDV vaccines is variable due to its low immunogenicity. This study evaluated the humoral immune response against homologous and heterologous strains of 7 inactivated BVDV vaccines, in bovines and two experimental models (ovine and guinea pig) which might be used to test candidate vaccines. Vaccines formulated with BVDV Singer, Oregon, NADL, and multivalent, induced seroconversion in the three animal models studied, reaching antibody titres higher than 2. Vaccine containing 125C -genotype 2- only induced a low antibody response in ovine, while VS-115 NCP vaccine was not immunogenic. Furthermore, bovine sera at 60 dpv presented homologous as well as heterologous antibody response, indicating a high degree of cross-reactivity among the strains studied. However, when bovine sera were tested against the Argentine field strain 00-693, they showed the lowest levels of cross-reactivity, suggesting the need of continued surveillance to identify and characterize emerging field BVDV strains. Finally, optimal correlations between bovine-ovine and bovine-guinea pig models were observed, indicating that two alternative species could replace bovines when testing the immunogenicity of BVDV candidate vaccines.
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Affiliation(s)
- F Fernández
- Instituto Nacional de Tecnología Agropecuaria, Castelar, Pcia. de Buenos Aires, Argentina.
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Pérez-Holanda S, López-Negrete LM, Fernández JA, Calleja M, Tojo S, Fernández P, Urdiales G, Martínez D, Rodríguez J, Fernández F, Valverde D. [Pneumoperitoneum with intramural gas in a bowel segment]. Rev Esp Enferm Dig 2008; 100:503-504. [PMID: 18942903 DOI: 10.4321/s1130-01082008000800009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Affiliation(s)
- S Pérez-Holanda
- Servicios de Cirugía General, Hospital Valle del Nalón, Langreo, Asturias
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Curcio D, Fernández F. Tigecycline for Acinetobacter baumannii infection: other considerations. Clin Infect Dis 2008; 46:1797-8; author reply 1798-9. [PMID: 18462123 DOI: 10.1086/588051] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
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Pérez-Holanda S, Urdiales GL, Fernández JA, España L, Rodríguez-Rubio J, Martínez MD, Fernández F, Tojo S, Fernández-Muñiz P, Calleja M, Valverde D. Preoperative workup to assess indication for laparoscopic treatment in gastroesophageal reflux disease. Rev Esp Enferm Dig 2008; 100:405-410. [PMID: 18808287 DOI: 10.4321/s1130-01082008000700005] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
INTRODUCTION AND OBJECTIVES antireflux surgery performed by an experienced surgeon is a maintenance option for patients with well-documented gastroesophageal reflux disease (GERD). Well-documented GERD is difficult to find, as GERD is a multifactorial disease in which the gastroesophageal junction, with its special anatomical and functional components, is important. In order to examine patient preoperative workups, and their indication for surgical treatment in GERD, we retrospectively studied patients who underwent a laparoscopic antireflux procedure. METHODS preoperative workups in patients from our health care area who underwent a laparoscopic antireflux procedure from December 1997 to February 2007 were retrospectively analyzed. Data related to epidemiological findings, symptoms, morphologic and functional evaluation, medical therapy, and indication for surgical treatment were recorded and statistically analyzed by means of a bivariate test. Differences were significant when the p value was equal to or less than 0.05. RESULTS 100 patients (50 % female, 51.31 +/- 13.53 years of age) underwent a laparoscopic antireflux surgery after 56.47 +/- 61.33 months with symptoms. Ninety-five percent of patients had an anatomical abnormality. The pH monitoring test diagnosed three quarters of cases. The most frequent indication for GERD treatment was persistent or recurrent esophagitis despite adequate medical treatment (52 cases). CONCLUSIONS based on our preoperative workup, as described, 100 percent of subjects were well documented and diagnosed with GERD (both non-erosive reflux disease and erosive reflux disease), and their indication for laparoscopic treatment was retrospectively assessed in 94% of cases.
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Affiliation(s)
- S Pérez-Holanda
- Department of General Surgery, Valle del Nalón Hospital. Langreo, Asturias, Spain.
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Fernández F, Rodríguez-Sanjuán JC, Mayorga M, Llorca J, García RA, Trugeda S, de la Torre F, Gómez-Fleitas M. Prognostic value of flow cytometry in surgically treated primary gastric lymphoma. Rev Esp Enferm Dig 2007; 98:817-27. [PMID: 17198474 DOI: 10.4321/s1130-01082006001100003] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
AIM To investigate whether flow cytometry could help to define the optimal therapeutic strategy of primary gastric lymphomas. MATERIAL AND METHOD Retrospective study of 46 patients having primary gastric lymphoma--according to Dawson criteria--in Ann Arbor stage IE and IIE, who were surgically treated. From selected paraffin-embedded tissue blocks of the tumor, DNA content was studied by flow cytometry (FC). Other pathological tumor features were analysed by hematoxiline-eosine and Giemsa stains as well as immunohistochemical study; any possible influence on postoperative survival was investigated through statistical analysis. RESULTS The DNA ploidy pattern was diploid in 40 cases (87%) and aneuploid (hyperdiploid) in 6 (13%). Postoperative survival probability (PSP) was 62.7% at 5 years. Statistical analysis showed significant prognostic value for Ann Arbor classification--with higher PSP for stage IE (p = 0.009)--and FC parameters: diploid tumors had higher PSP than aneuploid tumors. Also tumors having S-phase (p = 0.044) or G2-M phase values (p = 0.023) under the respective mean values had higher PSP. No influence on PSP was found for wall invasion, Helicobacter pylori infection, Isaacson's histologic type or resection margin involvement. No significant relationship was appreciated between Isaacson's histologic type and DNA ploidy patterns. CONCLUSION FC could be useful in assessing gastric lymphoma prognosis.
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Affiliation(s)
- F Fernández
- Department of Pathology, University Hospital Marqués de Valdecilla, University of Cantabria, Santander, Spain
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Pérez-Holanda S, Tojo S, Calleja M, Fernández JA, Fernández P, Martínez MD, Fernández F, Rodríguez J, Valverde D. [Splenic peliosis: a rare entity]. Rev Esp Enferm Dig 2007; 99:359-60. [PMID: 17883302 DOI: 10.4321/s1130-01082007000600012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Pérez-Holanda S, Tojo S, Urdiales G, Fernández P, Fernández JA, Calleja M, Fernández F, Rodríguez J, Martínez D, Valverde D. [Jaundice caused by afferent loop volvulus following Billroth-II gastrectomy]. Rev Esp Enferm Dig 2007; 99:553-554. [PMID: 18052653] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
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Carro AM, Lorenzo RA, Fernández F, Phan-Tan-Luu R, Cela R. Microwave-assisted extraction followed by headspace solid-phase microextraction and gas chromatography with mass spectrometry detection (MAE-HSSPME-GC-MS/MS) for determination of polybrominated compounds in aquaculture samples. Anal Bioanal Chem 2007; 388:1021-9. [PMID: 17364189 DOI: 10.1007/s00216-007-1220-4] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [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: 11/29/2006] [Revised: 02/13/2007] [Accepted: 02/16/2007] [Indexed: 10/23/2022]
Abstract
This paper describes the first validated method for the extraction, purification and determination of trace levels of a number of pollutants of growing concern, including polybrominated biphenyls (PBBs) and polybrominated diphenyl ethers (PBDEs), in aquaculture feeds and products. The new procedure comprises microwave-assisted extraction (MAE; optimized, using a central composite experimental design, to 15 min at 85 degrees C in 14 mL of 1:1 hexane/dichloromethane), and concentration by headspace solid-phase microextraction (HSSPME), and separation/quantification by gas chromatography with mass spectrometry detection (GC-MS/MS). The method was validated on the reference materials IAEA-406 and WMF-01. Limits of detection for fourteen of the fifteen analytes considered range from 10 to 600 pg g(-1), and limits of quantification from 50 pg g(-1) to 1.9 ng g(-1). Linear ranges, accuracies and precisions are reported.
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Affiliation(s)
- A M Carro
- Instituto de Investigación y Análisis Alimentario, Departamento de Química Analítica, Nutrición y Bromatología, Facultad de Química, Universidad de Santiago de Compostela, Santiago de Compostela, Spain.
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Fernández F, Domingo C, Amgarou K, Bouassoule T, García MJ. Neutron measurements in Spanish nuclear power plants with a Bonner sphere spectrometer system. Radiat Prot Dosimetry 2007; 126:355-60. [PMID: 17525063 DOI: 10.1093/rpd/ncm074] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/15/2023]
Abstract
Neutron spectrometric measurements with an active Bonner Sphere System (BSS) allowed us to determine the reference dosimeter values in Ascó I and II and Cofrentes (PWR, BWR) Spanish nuclear power plants. Under a request from the Spanish National Nuclear Safety Council, the UAB group was in charge of characterising the neutron fields at several measurement points (a total of 10) inside the containment building of these nuclear installations using an active BSS and a home-made MITOM unfolding code. The measurement results in the three installations confirm the presence of low-energy neutron components in almost all selected points. This developed BSS can be considered as a reference system in neutron radiation protection when defining the corresponding protocols for a correct personal dosimetry in nuclear power plant installations.
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Affiliation(s)
- F Fernández
- Grup de Física de les Radiacions, Departament de Física, Universitat Autónoma de Barcelona, E-08193 Bellaterra, Spain
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