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Casillas-Ramírez A, Micó-Carnero M, Sánchez-González A, Maroto-Serrat C, Trostchansky A, Peralta C. NO-IL-6/10-IL-1β axis: a new pathway in steatotic and non-steatotic liver grafts from brain-dead donor rats. Front Immunol 2023; 14:1178909. [PMID: 37593740 PMCID: PMC10427871 DOI: 10.3389/fimmu.2023.1178909] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2023] [Accepted: 07/11/2023] [Indexed: 08/19/2023] Open
Abstract
Introduction Brain death (BD) and steatosis are both risk factors for organ dysfunction or failure in liver transplantation (LT). Material and methods Here, we examine the role of interleukin 6 (IL- 6) and IL-10 in LT of both non-steatotic and steatotic liver recovered from donors after brain death (DBDs), as well as the molecular signaling pathways underlying the effects of such cytokines. Results BD reduced IL-6 levels only in nonsteatotic grafts, and diminished IL-10 levels only in steatotic ones. In both graft types, BD increased IL-1β, which was associated with hepatic inflammation and damage. IL-6 administration reduced IL-1β only in non-steatotic grafts and protected them against damage and inflammation. Concordantly, IL-1β inhibition via treatment with an IL-1 receptor antagonist caused the same benefits in non-steatotic grafts. Treatment with IL-10 decreased IL-1β only in steatotic grafts and reduced injury and inflammation specifically in this graft type. Blockading the IL-1β effects also reduced damage and inflammation in steatotic grafts. Also, blockade of IL-1β action diminished hepatic cAMP in both types of livers, and this was associated with a reduction in liver injury and inflammation, then pointing to IL-1β regulating cAMP generation under LT and BD conditions. Additionally, the involvement of nitric oxide (NO) in the effects of interleukins was evaluated. Pharmacological inhibition of NO in LT from DBDs prompted even more evident reductions of IL-6 or IL-10 in non-steatotic and steatotic grafts, respectively. This exacerbated the already high levels of IL-1β seen in LT from DBDs, causing worse damage and inflammation in both graft types. The administration of NO donors to non-steatotic grafts potentiated the beneficial effects of endogenous NO, since it increased IL-6 levels, and reduced IL-1β, inflammation, and damage. However, treatment with NO donors in steatotic grafts did not modify IL-10 or IL-1β levels, but induced more injurious effects tan the induction of BD alone, characterized by increased nitrotyrosine, lipid peroxidation, inflammation, and hepatic damage. Conclusion Our study thus highlights the specificity of new signaling pathways in LT from DBDs: NO-IL-6-IL-1β in non-steatotic livers and NO-IL-10-IL-1β in steatotic ones. This opens up new therapeutic targets that could be useful in clinical LT.
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Affiliation(s)
- Araní Casillas-Ramírez
- Department of Teaching and Research Sub-Direction, Hospital Regional de Alta Especialidad de Ciudad Victoria “Bicentenario 2010”, Ciudad Victoria, Mexico
- Facultad de Medicina e Ingeniería en Sistemas Computacionales de Matamoros, Universidad Autónoma de Tamaulipas, Matamoros, Mexico
| | - Marc Micó-Carnero
- Department of Liver, Digestive System and Metabolism, Institut d’Investigacions Biomèdiques August Pi i Sunyer, Barcelona, Spain
| | - Alfredo Sánchez-González
- Department of Teaching and Research Sub-Direction, Hospital Regional de Alta Especialidad de Ciudad Victoria “Bicentenario 2010”, Ciudad Victoria, Mexico
| | - Cristina Maroto-Serrat
- Department of Liver, Digestive System and Metabolism, Institut d’Investigacions Biomèdiques August Pi i Sunyer, Barcelona, Spain
| | - Andrés Trostchansky
- Departamento de Bioquímica and Centro de Investigaciones Biomédicas (CEINBIO), Facultad de Medicina, Universidad de la República, Montevideo, Uruguay
| | - Carmen Peralta
- Department of Liver, Digestive System and Metabolism, Institut d’Investigacions Biomèdiques August Pi i Sunyer, Barcelona, Spain
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Micó-Carnero M, Casillas-Ramírez A, Sánchez-González A, Rojano-Alfonso C, Peralta C. The Role of Neuregulin-1 in Steatotic and Non-Steatotic Liver Transplantation from Brain-Dead Donors. Biomedicines 2022; 10:biomedicines10050978. [PMID: 35625715 PMCID: PMC9138382 DOI: 10.3390/biomedicines10050978] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2022] [Revised: 03/29/2022] [Accepted: 04/21/2022] [Indexed: 11/16/2022] Open
Abstract
Background. Brain death (BD) and steatosis are key risk factors to predict adverse post-transplant outcomes. We investigated the role of Neuregulin-1 (NRG1) in rat steatotic and non-steatotic liver transplantation (LT) from brain death donors (DBD). Methods: NRG1 pathways were characterized after surgery. Results: NRG1 and p21-activated kinase 1 (PAK1) levels increased in steatotic and non-steatotic grafts from DBDs. The abolishment of NRG1 effects reduced PAK1. When the effect of either NRG1 nor PAK1 was inhibited, injury and regenerative failure were exacerbated. The benefits of the NRG-1-PAK1 axis in liver grafts from DBDs were associated with increased vascular endothelial growth factor-A (VEGFA) and insulin growth factor-1 (IGF1) levels, respectively. Indeed, VEGFA administration in non-steatotic livers and IGF1 treatment in steatotic grafts prevented damage and regenerative failure resulting from the inhibition of either NRG1 or PAK-1 activity in each type of liver. Exogenous NRG1 induced greater injury than BD induction. Conclusions: This study indicates the benefits of endogenous NRG1 in liver grafts from DBDs and underscores the specificity of the NRG1 signaling pathway depending on the type of liver: NRG1-PAK1-VEGFA in non-steatotic livers and NRG1-PAK1-IGF1 in steatotic livers. Exogenous NRG1 is not an appropriate strategy to apply to liver grafts from DBD.
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Affiliation(s)
- Marc Micó-Carnero
- Institut d’Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), 08036 Barcelona, Spain; (M.M.-C.); (C.R.-A.)
| | - Araní Casillas-Ramírez
- Hospital Regional de Alta Especialidad de Ciudad Victoria “Bicentenario 2010”, Ciudad Victoria 87087, Mexico; (A.C.-R.); (A.S.-G.)
- Facultad de Medicina e Ingeniería en Sistemas Computacionales de Matamoros, Universidad Autónoma de Tamaulipas, Matamoros 87300, Mexico
| | - Alfredo Sánchez-González
- Hospital Regional de Alta Especialidad de Ciudad Victoria “Bicentenario 2010”, Ciudad Victoria 87087, Mexico; (A.C.-R.); (A.S.-G.)
| | - Carlos Rojano-Alfonso
- Institut d’Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), 08036 Barcelona, Spain; (M.M.-C.); (C.R.-A.)
| | - Carmen Peralta
- Institut d’Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), 08036 Barcelona, Spain; (M.M.-C.); (C.R.-A.)
- Correspondence: ; Tel.: +34-932-275-400
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Ríos-López AL, Bustamante AE, González GM, Llaca-Diaz JM, Sánchez-González A. Inquilinus limosus isolated from a patient with chronic cystic fibrosis. First report in Mexico and evidence that co-infection with Pseudomonas aeruginosa promotes the accelerated and increased formation of extracellular neutrophil traps. Indian J Med Microbiol 2021; 40:156-159. [PMID: 34856324 DOI: 10.1016/j.ijmmb.2021.11.010] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2021] [Revised: 11/03/2021] [Accepted: 11/26/2021] [Indexed: 11/19/2022]
Abstract
Cystic fibrosis is characterized by abnormal mucous secretions in the lungs that favor the proliferation of colonizing bacteria, with Pseudomonas aeruginosa and Staphylococcus aureus being the most isolated, however, other less known species could also have an impact on the health of the patient. Here we demonstrate the isolation and antibiotic resistance profiles of Inquilinus limosus, a rarely reported multidrug resistant bacterium, and compare them to a co-infectant strain of Pseudomonas aeruginosa. Likewise, we found that co-infection with both bacteria promotes increased formation of neutrophil extracellular traps, which can have an impact on the disease severity and make treatment difficult.
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Affiliation(s)
- A L Ríos-López
- Departamento de Microbiología, Facultad de Medicina, Universidad Autónoma de Nuevo León, Monterrey, 64460, Nuevo León, Mexico.
| | - A E Bustamante
- Hospital Universitario, CEPREP, Edificio Rodrigo Barragán, Universidad Autónoma de Nuevo León, Monterrey, 64460, Nuevo León, Mexico.
| | - G M González
- Departamento de Microbiología, Facultad de Medicina, Universidad Autónoma de Nuevo León, Monterrey, 64460, Nuevo León, Mexico.
| | - J M Llaca-Diaz
- Unidad de Banco de sangre, Hospital Universitario "José Eleuterio González", Universidad Autónoma de Nuevo León, Monterrey, 64460, Nuevo León, Mexico.
| | - A Sánchez-González
- Departamento de Microbiología, Facultad de Medicina, Universidad Autónoma de Nuevo León, Monterrey, 64460, Nuevo León, Mexico.
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Sánchez-González A, Thougaard E, Tapias-Espinosa C, Cañete T, Sampedro-Viana D, Saunders JM, Toneatti R, Tobeña A, Gónzalez-Maeso J, Aznar S, Fernández-Teruel A. Increased thin-spine density in frontal cortex pyramidal neurons in a genetic rat model of schizophrenia-relevant features. Eur Neuropsychopharmacol 2021; 44:79-91. [PMID: 33485732 PMCID: PMC7902438 DOI: 10.1016/j.euroneuro.2021.01.006] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/20/2020] [Revised: 12/09/2020] [Accepted: 01/10/2021] [Indexed: 12/13/2022]
Abstract
The cellular mechanisms altered during brain wiring leading to cognitive disturbances in neurodevelopmental disorders remain unknown. We have previously reported altered cortical expression of neurodevelopmentally regulated synaptic markers in a genetic animal model of schizophrenia-relevant behavioral features, the Roman-High Avoidance rat strain (RHA-I). To further explore this phenotype, we looked at dendritic spines in cortical pyramidal neurons, as changes in spine density and morphology are one of the main processes taking place during adolescence. An HSV-viral vector carrying green fluorescent protein (GFP) was injected into the frontal cortex (FC) of a group of 11 RHA-I and 12 Roman-Low Avoidance (RLA-I) male rats. GFP labeled dendrites from pyramidal cells were 3D reconstructed and number and types of spines quantified. We observed an increased spine density in the RHA-I, corresponding to a larger fraction of immature thin spines, with no differences in stubby and mushroom spines. Glia cells, parvalbumin (PV) and somatostatin (SST) interneurons and surrounding perineuronal net (PNN) density are known to participate in FC and pyramidal neuron dendritic spine maturation. We determined by stereological-based quantification a significantly higher number of GFAP-positive astrocytes in the FC of the RHA-I strain, with no difference in microglia (Iba1-positive cells). The number of inhibitory PV, SST interneurons or PNN density, on the contrary, was unchanged. Results support our belief that the RHA-I strain presents a more immature FC, with some structural features like those observed during adolescence, adding construct validity to this strain as a genetic behavioral model of neurodevelopmental disorders.
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Affiliation(s)
- A Sánchez-González
- Medical Psychology Unit, Department of Psychiatry and Forensic Medicine, Institute of Neurosciences, School of Medicine, Universidad Autónoma de Barcelona, 08193 Bellaterra, Barcelona, Spain; Department of Physiology and Biophysics, Virginia Commonwealth University School of Medicine, Richmond, VA, USA
| | - E Thougaard
- Research Laboratory for Stereology and Neuroscience, Bispebjerg Copenhagen University Hospital, 2400 Copenhagen, Denmark
| | - C Tapias-Espinosa
- Medical Psychology Unit, Department of Psychiatry and Forensic Medicine, Institute of Neurosciences, School of Medicine, Universidad Autónoma de Barcelona, 08193 Bellaterra, Barcelona, Spain
| | - T Cañete
- Medical Psychology Unit, Department of Psychiatry and Forensic Medicine, Institute of Neurosciences, School of Medicine, Universidad Autónoma de Barcelona, 08193 Bellaterra, Barcelona, Spain
| | - D Sampedro-Viana
- Medical Psychology Unit, Department of Psychiatry and Forensic Medicine, Institute of Neurosciences, School of Medicine, Universidad Autónoma de Barcelona, 08193 Bellaterra, Barcelona, Spain
| | - J M Saunders
- Department of Physiology and Biophysics, Virginia Commonwealth University School of Medicine, Richmond, VA, USA
| | - R Toneatti
- Department of Physiology and Biophysics, Virginia Commonwealth University School of Medicine, Richmond, VA, USA
| | - A Tobeña
- Medical Psychology Unit, Department of Psychiatry and Forensic Medicine, Institute of Neurosciences, School of Medicine, Universidad Autónoma de Barcelona, 08193 Bellaterra, Barcelona, Spain
| | - J Gónzalez-Maeso
- Department of Physiology and Biophysics, Virginia Commonwealth University School of Medicine, Richmond, VA, USA
| | - S Aznar
- Research Laboratory for Stereology and Neuroscience, Bispebjerg Copenhagen University Hospital, 2400 Copenhagen, Denmark; Copenhagen Center for Translational Research, Bispebjerg Copenhagen University Hospital, Copenhagen, Denmark.
| | - A Fernández-Teruel
- Medical Psychology Unit, Department of Psychiatry and Forensic Medicine, Institute of Neurosciences, School of Medicine, Universidad Autónoma de Barcelona, 08193 Bellaterra, Barcelona, Spain.
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Ríos-López AL, González GM, Hernández-Bello R, Sánchez-González A. Avoiding the trap: Mechanisms developed by pathogens to escape neutrophil extracellular traps. Microbiol Res 2020; 243:126644. [PMID: 33199088 DOI: 10.1016/j.micres.2020.126644] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [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: 08/10/2020] [Revised: 10/28/2020] [Accepted: 11/01/2020] [Indexed: 12/17/2022]
Abstract
Neutrophils are the first cells of the innate immune system that respond to infection by arriving at sites when pathogens have exceeded physical barriers. Among their response mechanisms against pathogens is the release of neutrophil extracellular traps (NETs), which are composed of deoxyribonucleic acid and antimicrobial proteins such as neutrophil elastase, myeloperoxidase, antimicrobial peptides, and other proteins in neutrophil granules. The formation of extracellular traps is considered an effective strategy to capture and, in some cases, neutralize pathogenic bacteria, fungi, parasites, or viruses. However, it is also known that pathogens can respond to NETs by expressing some virulence factors, thus evading the antimicrobial effect of these structures. These include the secretion of proteins to degrade the deoxyribonucleic acid scaffold, the formation of biofilms that impede the effect of NETs, or the modification of its membrane structure to avoid interaction with NETs. In this review, we discuss these mechanisms and summarize the different pathogens that employ one or more mechanisms to evade the NET-mediated neutrophil response.
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Affiliation(s)
- A L Ríos-López
- Departamento de Microbiología, Facultad de Medicina y Hospital Universitario "Dr. Jose Eleuterio Gonzalez", Universidad Autónoma de Nuevo León, Monterrey, Nuevo León, 64460, Mexico
| | - G M González
- Departamento de Microbiología, Facultad de Medicina y Hospital Universitario "Dr. Jose Eleuterio Gonzalez", Universidad Autónoma de Nuevo León, Monterrey, Nuevo León, 64460, Mexico
| | - R Hernández-Bello
- Departamento de Microbiología, Facultad de Medicina y Hospital Universitario "Dr. Jose Eleuterio Gonzalez", Universidad Autónoma de Nuevo León, Monterrey, Nuevo León, 64460, Mexico
| | - A Sánchez-González
- Departamento de Microbiología, Facultad de Medicina y Hospital Universitario "Dr. Jose Eleuterio Gonzalez", Universidad Autónoma de Nuevo León, Monterrey, Nuevo León, 64460, Mexico.
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Martínez-Alemán S, Bustamante A, Jimenez-Valdes R, González G, Sánchez-González A. Pseudomonas aeruginosa isolates from cystic fibrosis patients induce neutrophil extracellular traps with different morphologies that could correlate with their disease severity. Int J Med Microbiol 2020; 310:151451. [DOI: 10.1016/j.ijmm.2020.151451] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2019] [Revised: 08/19/2020] [Accepted: 08/24/2020] [Indexed: 12/11/2022] Open
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Dorantes-Hernández JM, Torres-Rojas YE, Aguíñiga-García S, Ramos-Miranda J, Trasviña-Carrillo LD, Flores-Hernández D, Sánchez-González A. Variation of δ 18O in otoliths of Stellifer lanceolatus and Eucinostomus gula environmental change indicator in Terminos Lagoon, Mexico. Mar Environ Res 2020; 161:105135. [PMID: 32942210 DOI: 10.1016/j.marenvres.2020.105135] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [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: 01/15/2020] [Revised: 08/13/2020] [Accepted: 08/27/2020] [Indexed: 06/11/2023]
Abstract
Environmental changes have been associated with natural climatic variability or human activity. Water resources management is, perhaps, the most drastic change observed in the coastal environment. However, external forcings such as the El Niño event have important implications in the global and regional hydrological balance. These environmental changes have an impact on the density and biomass of the ichthyofauna in the Terminos Lagoon (TL) for the past 30 years, presumably, associated with variations in the temperature and surface salinity of the sea. Therefore, in the present study, δ18O was quantified in otoliths of two important species due to their dominance: Stellifer lanceolatus and Eucinostomus gula, and to understand the environmental changes reflected in both species. The δ18O was analyzed in otoliths of these two species captured in 1998/1997, 2006/2007 and 2016/2017 and were compared with in situ temperature and salinity data. Sea surface temperature and salinity increased by 2 °C and 9, respectively, between 1997 and 2017. Stellifer lanceolatus δ18O values was in isotopic equilibrium with seawater calcite; while, E. gula is not in isotopic equilibrium. The δ18O of S. lanceolatus and E. gula varied significantly with the increase in salinity (R2 = 0.8987 and R2 = -0.2964) and not with the sea surface temperature. S. lanceolatus is an excellent bioindicator of changes in sea surface salinity in this region of the Gulf of Mexico.
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Affiliation(s)
- J M Dorantes-Hernández
- Centro Interdisciplinario de Ciencias Marinas, Instituto Politécnico Nacional, Av. IPN s/n, C.P. 23096, La Paz, Baja California Sur, México
| | - Y E Torres-Rojas
- Instituto de Ecología, Pesquerías y Oceanografía del Golfo de México, Universidad Autónoma de Campeche (EPOMEX-UAC), Campus 6. Av. Héroe de Nacozari #480, C.P. 24029, Campeche, Camp, México.
| | - S Aguíñiga-García
- Centro Interdisciplinario de Ciencias Marinas, Instituto Politécnico Nacional, Av. IPN s/n, C.P. 23096, La Paz, Baja California Sur, México
| | - J Ramos-Miranda
- Instituto de Ecología, Pesquerías y Oceanografía del Golfo de México, Universidad Autónoma de Campeche (EPOMEX-UAC), Campus 6. Av. Héroe de Nacozari #480, C.P. 24029, Campeche, Camp, México
| | - L D Trasviña-Carrillo
- Centro Interdisciplinario de Ciencias Marinas, Instituto Politécnico Nacional, Av. IPN s/n, C.P. 23096, La Paz, Baja California Sur, México
| | - D Flores-Hernández
- Instituto de Ecología, Pesquerías y Oceanografía del Golfo de México, Universidad Autónoma de Campeche (EPOMEX-UAC), Campus 6. Av. Héroe de Nacozari #480, C.P. 24029, Campeche, Camp, México
| | - A Sánchez-González
- Centro Interdisciplinario de Ciencias Marinas, Instituto Politécnico Nacional, Av. IPN s/n, C.P. 23096, La Paz, Baja California Sur, México.
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Sánchez-González A, Oliveras I, Río-Álamos C, Piludu MA, Gerbolés C, Tapias-Espinosa C, Tobeña A, Aznar S, Fernández-Teruel A. Dissociation between schizophrenia-relevant behavioral profiles and volumetric brain measures after long-lasting social isolation in Roman rats. Neurosci Res 2019; 155:43-55. [PMID: 31306676 DOI: 10.1016/j.neures.2019.07.002] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [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: 01/21/2019] [Revised: 07/02/2019] [Accepted: 07/05/2019] [Indexed: 11/29/2022]
Abstract
Social isolation rearing of rodents is an environmental manipulation known to induce or potentiate psychotic-like symptoms and attentional and cognitive impairments relevant for schizophrenia. When subjected to a 28-week isolation rearing treatment, the Roman high-avoidance (RHA-I) rats display the common behavioral social isolation syndrome, with prepulse inhibition (PPI) deficits, hyperactivity, increased anxiety responses and learning/memory impairments when compared to their low-avoidance (RLA-I) counterparts. These results add face validity to the RHA-I rats as an animal model for schizophrenia-relevant behavioral and cognitive profiles and confirm previous results. The aim here was to further investigate the neuroanatomical effects of the isolation rearing, estimated through volume differences in medial prefrontal cortex (mPFC), dorsal striatum (dSt) and hippocampus (HPC). Results showed a global increase in volume in the mPFC in the isolated rats of both strains, as well as strain effects (RLA > RHA) in the three brain regions. These unexpected but robust results, might have unveiled some kind of compensatory mechanisms due to the particularly long-lasting isolation rearing period, much longer than those commonly used in the literature (which usually range from 4 to 12 weeks).
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Affiliation(s)
- A Sánchez-González
- Dept. Psychiatry & Forensic Medicine, Institute of Neurosciences, Universidad Autónoma de Barcelona, Barcelona, Spain.
| | - I Oliveras
- Dept. Psychiatry & Forensic Medicine, Institute of Neurosciences, Universidad Autónoma de Barcelona, Barcelona, Spain
| | - C Río-Álamos
- Dept. Psychology, School of Medicine, Austral University of Chile, Valdivia, Chile
| | - M A Piludu
- Dept. of Life and Environmental Sciences, Section of Pharmaceutical, Pharmacological and Nutraceutical Sciences, University of Cagliari, Cagliari, Italy
| | - C Gerbolés
- Dept. Psychiatry & Forensic Medicine, Institute of Neurosciences, Universidad Autónoma de Barcelona, Barcelona, Spain
| | - C Tapias-Espinosa
- Dept. Psychiatry & Forensic Medicine, Institute of Neurosciences, Universidad Autónoma de Barcelona, Barcelona, Spain
| | - A Tobeña
- Dept. Psychiatry & Forensic Medicine, Institute of Neurosciences, Universidad Autónoma de Barcelona, Barcelona, Spain
| | - S Aznar
- Research Laboratory for Stereology and Neuroscience, Bispebjerg and Frederiksberg Hospitals, Copenhagen, Denmark.
| | - A Fernández-Teruel
- Dept. Psychiatry & Forensic Medicine, Institute of Neurosciences, Universidad Autónoma de Barcelona, Barcelona, Spain.
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Trasviña-Carrillo LD, Hernández-Herrera A, Torres-Rojas YE, Galván-Magaña F, Sánchez-González A, Aguíñiga-García S. Spatial and trophic preferences of jumbo squid Dosidicus gigas (D'Orbigny, 1835) in the central Gulf of California: ecological inferences using stable isotopes. Rapid Commun Mass Spectrom 2018; 32:1225-1236. [PMID: 29698564 DOI: 10.1002/rcm.8147] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/2017] [Revised: 04/13/2018] [Accepted: 04/14/2018] [Indexed: 06/08/2023]
Abstract
RATIONALE The jumbo squid Dosidicus gigas is a fishery resource of considerable economic and ecological importance in the Mexican Pacific. Studies on its habitat preferences are needed to understand recent fluctuations in the abundance and availability of the species. Stable isotope analysis allows us to infer ecological aspects such as spatial distribution and trophic preferences. METHODS We used an isotope ratio mass spectrometer, automated for carbonate analysis, and coupled to an elemental analyzer, to determine the isotopic composition of statoliths (δ18 O and δ13 C values) and beaks (δ13 C and δ15 N values) from 219 individuals caught over two fishing seasons (2007 and 2009) off the coast of Santa Rosalía, in the central Gulf of California. We used these isotopic ratios to assess variation in spatial and trophic preferences by sex, size, and fishing season. RESULTS In the 2009 group, we observed significant differences in statolith δ13 C values and beak δ13 C and δ15 N values between males and females. Between size groups, we observed significant differences in statolith δ18 O and δ13 C values in 2007 and in beak δ13 C and δ15 N values during both seasons. Both seasons were characterized by high overlap in δ18 O and δ13 C values between sexes and in 2009 between size groups. We observed low trophic overlap between sexes in 2009 and between size groups during both seasons. CONCLUSIONS The isotopic ratios from statoliths and beaks indicate that D. gigas has changed its spatial and trophic preferences, a shift that is probably related to changes in the species' diet. This intraspecific variation in preferences could be related to characteristics such as size, which may influence squid distribution preferences.
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Affiliation(s)
- L D Trasviña-Carrillo
- Centro Interdisciplinario de Ciencias Marinas, Instituto Politécnico Nacional, Av. IPN s/n, C.P. 23096, La Paz, Baja California Sur, Mexico
| | - A Hernández-Herrera
- Centro Interdisciplinario de Ciencias Marinas, Instituto Politécnico Nacional, Av. IPN s/n, C.P. 23096, La Paz, Baja California Sur, Mexico
| | - Y E Torres-Rojas
- Instituto de Ecología, Pesquerías y Oceanografía del Golfo de México, Universidad Autónoma de Campeche (EPOMEX-UAC), Campus 6. Av. Héroe de Nacozari #480, C.P. 24029, Campeche, Camp, Mexico
| | - F Galván-Magaña
- Centro Interdisciplinario de Ciencias Marinas, Instituto Politécnico Nacional, Av. IPN s/n, C.P. 23096, La Paz, Baja California Sur, Mexico
| | - A Sánchez-González
- Centro Interdisciplinario de Ciencias Marinas, Instituto Politécnico Nacional, Av. IPN s/n, C.P. 23096, La Paz, Baja California Sur, Mexico
| | - S Aguíñiga-García
- Centro Interdisciplinario de Ciencias Marinas, Instituto Politécnico Nacional, Av. IPN s/n, C.P. 23096, La Paz, Baja California Sur, Mexico
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Salamanca-Bustos JJ, Campos-Hernandez JP, Sánchez-Hidalgo JM, Arjona-Sánchez A, Sánchez-González A, Arenas-Bonilla AJ, Ruiz-Rabelo J, Carrasco-Valiente J, Ruiz-García J, Regueiro-López JC, Briceño-Delgado J, Requena-Tapia MJ. Validation of the Pancreatic Donor Risk Index in Simultaneous Pancreas-Kidney Transplantation Performed in Córdoba Hospital From 2000 to 2015. Transplant Proc 2017; 48:3037-3039. [PMID: 27932141 DOI: 10.1016/j.transproceed.2016.07.049] [Citation(s) in RCA: 9] [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: 06/15/2016] [Accepted: 07/27/2016] [Indexed: 11/25/2022]
Abstract
BACKGROUND The Pancreatic Donor Risk Index (PDRI) was developed in 2010 in the United States to predict graft survival after pancreas transplantation, based on donor characteristics and logistical and technical conditions. The aim of the study was to validate the utility of PDRI as a pancreas allograft survival predictor in simultaneous pancreas-kidney transplantation (SPK) transplants performed in our hospital between 2000 and 2015. METHODS This retrospective analysis of 126 SPK transplants was performed by the same surgical team from the years 2000 to 2015. Donor variables that are integrated in the PDRI were calculated (age, sex, race, creatinine serum levels, body mass index, height, cold ischemia time, cause of death, type of pancreas transplant). Pancreatic graft survival at 1 and 5 years was calculated by use of the Kaplan-Meier test. Comparison of survival curves between PDRI risk quartiles was calculated by use of the log-rank test. Association between graft survival and variables integrating the PDRI was calculated by use of univariate Cox regression analysis. RESULTS Log-rank analysis found no statistically significant association between global graft survival and PDRI quartiles. Univariate Cox regression analysis showed a statistically significant association between graft survival and cold ischemia time (P < .05). CONCLUSIONS PDRI was not a useful tool to predict pancreatic graft outcomes in a Spanish reference population.
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Affiliation(s)
| | | | | | - A Arjona-Sánchez
- Department of Surgery, University Hospital Reina Sofía, Córdoba, Spain
| | | | | | - J Ruiz-Rabelo
- Department of Surgery, University Hospital Reina Sofía, Córdoba, Spain
| | | | - J Ruiz-García
- Department of Urology, University Hospital Reina Sofía, Córdoba, Spain
| | | | - J Briceño-Delgado
- Department of Surgery, University Hospital Reina Sofía, Córdoba, Spain
| | - M J Requena-Tapia
- Department of Urology, University Hospital Reina Sofía, Córdoba, Spain
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11
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Becerra-Rueda O, Sánchez-González A, Díez-Salvador S, Marmolejo-Rodríguez A, Rodríguez-Figueroa G. Presence of emergent pollutants in sediments of a tropical coastal lagoon in Baja California Sur, Mexico. Toxicol Lett 2016. [DOI: 10.1016/j.toxlet.2016.07.242] [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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12
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Sánchez-González A, Dobado JA, Torneiro M. A computational study of bulk porous two-dimensional polymers related to graphyne. Phys Chem Chem Phys 2016; 18:21305-14. [DOI: 10.1039/c6cp02511k] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We use density functional theory methods with periodic boundary conditions to investigate the stacking arrangements of the bulk 2D polymers multilayer porous graphyne, the analog in which the triple bonds are substituted by double bonds and the related carbon allotrope multilayer graphyne.
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Affiliation(s)
- A. Sánchez-González
- Departamento de Química Orgánica
- Facultade de Química
- Universidade de Santiago de Compostela
- Spain
| | - J. A. Dobado
- Grupo de Modelización y Diseño Molecular
- Dpto. Química Orgánica
- Facultad de Ciencias
- Granada
- Spain
| | - M. Torneiro
- Departamento de Química Orgánica
- Facultade de Química
- Universidade de Santiago de Compostela
- Spain
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13
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Valerio-Moraes IA, Espinosa-Morales R, Sánchez-González A, Cedeño-Garcidueñas AL, Pichardo-Bahena R, Lezama-Peniche M. [Pseudoseptic arthritis with foreign body synovitis in a patient with gout]. Acta Ortop Mex 2015; 29:123-126. [PMID: 27012087] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Monoarthritis is a diagnostic challenge for the clinician, as the list of associated conditions is quite long. It is accepted that in patients with a diagnosis of inflammatory joint disease monoarthritis represents exacerbation of the underlying disease. However, ignoring the systematized approach to monoarthritides may lead to omissions and mistaken diagnostic implications. This report describes the approach to a case of pseudoseptic arthritis that mimicked an acute episode of recurrent arthritis due to monosodium urate in a patient with retention of an intraarticular foreign body.
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14
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Sobrino-Figueroa AS, Becerra-Rueda OF, Magallanes-Ordóñez VR, Sánchez-González A, Marmolejo-Rodríguez AJ. Toxicity in semiarid sediments influenced by tailings of an abandoned gold mine. Environ Monit Assess 2015; 187:4158. [PMID: 25523271 DOI: 10.1007/s10661-014-4158-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/22/2014] [Accepted: 11/10/2014] [Indexed: 06/04/2023]
Abstract
The mining district of El Triunfo (ET-MD) has an estimated 800,000 t of mine wastes scattered in the environment, contaminating the sediment with potentially toxic elements such as As, Cd, Pb, and Zn. In order to estimate the toxicity of the sediment to the adjacent biota, the aims of our study are to calculate the mortality and inhibition through bioassays, using sediment, and test organisms such as Daphnia magna and Selenastrum capricornutum (Pseudokirchneriella subcapitata), respectively. The D. magna mortality was 31 ± 12% and the S. capricornutum growth inhibition was 53 ± 24%. The contamination of the sediment determines the high mortality of D. magna and the high inhibition of S. capricornutum in the system, indicating risk for the biota in the contaminated system.
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Affiliation(s)
- A S Sobrino-Figueroa
- Departamento de Hidrobiología, Universidad Autónoma Metropolitana-Iztapalapa (UAM-I), San Rafael Atlixco, Iztapalapa, 09340, Distrito Federal, Mexico
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15
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Rodríguez-Ramírez EC, Sánchez-González A, Ángeles-Pérez G. Current distribution and coverage of Mexican beech forests Fagus grandifolia subsp. mexicana in Mexico. ENDANGER SPECIES RES 2013. [DOI: 10.3354/esr00498] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
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16
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Casas JS, Castellano EE, Couce MD, García-Vega M, Sánchez A, Sánchez-González A, Sordo J, Varela JM, Vázquez López EM. Chemical and in vitro study of the potential of 3-(aryl)-2-sulfanylpropenoic acids and their Zn(ii) complexes as protective agents against cadmium toxicity. Dalton Trans 2010; 39:3931-43. [DOI: 10.1039/b918361b] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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17
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Casas JS, García-Martínez E, Sánchez-González A, Sordo J, Villar R. Dichlorodiethylbis(pyridine-N)tin(IV). Acta Crystallogr C 2000; 56 ( Pt 3):299-300. [PMID: 10777926] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/1999] [Accepted: 11/26/1999] [Indexed: 02/16/2023] Open
Affiliation(s)
- J S Casas
- Departamento de Química Inorgánica, Facultade de Farmacia, Universidade de Santiago de Compostela, Galicia, Spain
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18
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Abstract
The first (or menstrual) and fourth (or premenstrual) week of the menstrual cycle may be associated with many suicide attempts in women. The study sample included 113 Spanish women who attempted suicide and contacted an emergency service. Inclusion criteria were as follows: fertility; regular menstrual cycles; lack of oral contraceptives; and willingness to see a psychiatrist. The incidence of suicide attempts in the first week (36%) was significantly higher than that in the remaining weeks (second week, 19%; third week 16%; fourth week, 29%). A correspondence analysis suggested that suicide attempts were associated with differences in demographics and clinical profiles. In particular, suicide attempts in the third week were correlated with a severe history of psychiatric problems and a lower level of education. The limitations of this study are its exclusiveness to hospitalized cases and its use of patient reports to date menstruation.
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Affiliation(s)
- E Baca-García
- Department of Psychiatry, Hospital Ramon y Cajal, Madrid, Spain
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19
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Fournier JA, Sánchez-González A, Quero J, Cortacero JA, Cabello A, Revello A, Romero R. Normal angiogram after myocardial infarction in young patients: a prospective clinical-angiographic and long-term follow-up study. Int J Cardiol 1997; 60:281-7. [PMID: 9261639 DOI: 10.1016/s0167-5273(97)00115-0] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
This is an observational study in which we compared the clinical characteristics and the long-term course of young patients having acute myocardial infarction and angiographically normal coronary arteries and young patients showing significant coronary artery disease. In 87 patients aged < or = 40 years who suffered an acute myocardial infarction, enrolled in a prospective study over a period of 6.5 years, coronary anatomy was determined by angiography within a month of admission. The risk factors, clinical data, ventricular function and the long-term outcome were compared between patients with normal angiograms (Group 1, n = 12) and patients with coronary artery disease (Group 2, n = 75). Patients in Group 1 had a lower number of risk factors associated with them (17% vs. 64% with > 1 risk factor, P < 0.005), were younger (32 +/- 5 vs. 36 +/- 4, P < 0.01), lighter smokers (25% vs. 55% for > or = 2 packs per day, P < 0.05), had less frequent hypertension (0 vs. 25%, P < 0.05), hypercholesterolemia (17% vs. 52%, P = 0.02) and had a lower mean total cholesterol level (201 +/- 42 vs. 245 +/- 60 mg/100 ml, P < 0.05) than patients in Group 2. They also had a more common onset of their infarction during heavy physical exertion (67% vs. 17%, P < 0.001). A history of previous myocardial infarction, infarct location, global left ventricular function and regional wall motion were similar in both groups. After a mean follow-up period of 41 +/- 23 months, no patient died or had a second myocardial infarction in Group 1, and 4 patients had died in Group 2. The appearance of angina, less frequent in Group 1 than Group 2, tended to correlate with the extension of the coronary artery disease. We concluded that young patients with myocardial infarction have good prognosis irrespective of the coronary anatomy, although patients with normal coronary angiograms had less risk factors and less frequent new ischaemic events.
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Affiliation(s)
- J A Fournier
- Servicio de Cardiologia, Hospital Universitario Virgen del Rocio, Seville, Spain
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20
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Fournier JA, Sánchez-González A, Cortacero JA, Martínez A. [Prospective angiographic study of coronary disease in patients with severe chronic valve disease]. Rev Esp Cardiol 1988; 41:462-6. [PMID: 3212271] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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