Person: González González, Fernando
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First Name
Fernando
Last Name
González González
Affiliation
Universidad Complutense de Madrid
Faculty / Institute
Veterinaria
Department
Farmacología y Toxicología
Area
Farmacología
Identifiers
7 results
Search Results
Now showing 1 - 7 of 7
Item Prevalence and antimicrobial resistance of Campylobacter from wild birds of prey in Spain(Comparative Immunology, Microbiology and Infectious Diseases, 2021) González González, Fernando; Revuelta Rueda, Luis; Marín Martínez, María; Mencía-Gutiérrez, A.; Martín-Maldonado, B.; Pastor-Tiburón, N.; Moraleda, V.; García-Peña, F. J.; Pérez-Cobo, IratxeWild birds have been identified as a relevant reservoir of Campylobacter spp., therefore, a potential source of infection in humans and domestic animals. The objective of this study was to determine the occurrence of Campylobacter spp. on birds of prey in Spain. In addition, antibiotic resistance profiles of the isolates were evaluated. A total of 689 specimens of 28 raptor species were analyzed, with a resulting individual prevalence of 7.5%. C. jejuni was the most frequently isolated species (88.5%), followed by C. coli and C. lari (3.8% each). The occurrence of Campylobacter was significantly higher (p < 0.05) in nocturnal birds of prey (15.3%), in spring season (12.2%) and in carnivorous species (9.4%). Isolates displayed a remarkable resistance to nalidixic acid (69.9%), ciprofloxacin (69.9%), and tetracycline (55.6%), and a low resistance to streptomycin (6.7%). Our findings highlight the importance of birds of prey as reservoirs of Campylobacter strains and their significant role as carriers of antimicrobial resistance.- Project number: PIMCD150/23-24
Item Lectura fácil: elaboración de un manual cognitivamente adaptado a jóvenes con discapacidad intelectual en la especialidad de cuidado de animales del diploma universitario Liceo(2024) Rubio Langre, Sonia; Peña Gil, Diana; Escudero Portugués, Rosa María; Rebolé Garrigós, Almudena; Díez Martín, Amalia; Martínez Madrid, Carmen Belén; Rodríguez Fernández, Casilda; Marín García, María Del Pilar; San Andrés Larrea, María Dolores De; Encinas Cerezo, María Teresa; De Las Heras Molina, Ana; De Pablo Moreno, Juan Andrés; Giménez Páez, Marta Alicia; González González, Fernando; Nieto González, David; García-Espantaleón Artal, Manuel; Fernández de Lis Galván, Gonzalo; Fernández Bravo, Juan Antonio; Galán Elvira, Jaime; Hernández Camisón, Carlota Petra; Lanza Peña, Lucía; Ortega Moreno, Carlos; Vidal Serrano, Laia; Rubio Langre, Sonia; Rubio Langre, Sonia y miembros del equipo del PID 150A partir del material elaborado en los Proyectos INNOVA-Docencia 244/2021 y 164/2022, se pretende crear un manual en lectura fácil, dirigido al estudiantado con discapacidad intelectual de la Especialidad de Cuidado de Animales del Diploma Liceo. Item Adaptation of the classical end-point ITS-PCR for the diagnosis of avian trichomonosis to a real-time PCR reveals Bonelli’s eagle as a new host for Trichomonas gypaetinii(Parasitology Research, 2022) Alejandro Mateo, Sandra; Azami Conesa, Iris; Martín Maldonado, Bárbara; Pastor Tiburón, Natalia; Martín Hernández, Raquel; González González, Fernando; Gómez Muñoz, María TeresaAvian trichomonosis is a parasitic disease caused mainly by Trichomonas gallinae and other Trichomonas species. It can be asymptomatic, or it can produce a necrotic lesion in the upper digestive tract and spread to other organs, causing the death of the infected birds. In this study, we aimed to evaluate an adapted real-time PCR method for the diagnosis of different genotypes and species of avian oropharyngeal trichomonads. Fifty-six samples from the oropharynx of Bonelli’s eagles (Aquila fasciata) obtained between 2018 and 2019 were analyzed using the real-time PCR and the end-point PCR, both targeting trichomonads ITS, and the results were compared by a coefficient of agreement. All positive samples were sequenced. The analysis showed a higher percentage of detection of real-time PCR ITS compared with end-point PCR ITS (64.3 vs 55.4%), and good agreement value (Kappa = 0.816). Melting temperature value for resulting amplicons of real-time PCR for avian trichomonads was 83.45 ± 0.72 °C. Genotypes A, D, and III were found among the sequences. Moreover, Trichomonas gypaetinii, a common species in scavenger birds, is reported for the first time in Bonelli’s eagles.Item Occurrence of Leishmania infantum in Wild Mammals Admitted to Recovery Centers in Spain(Pathogens, 2023) Azami Conesa, Iris; Pérez Moreno, Paula; Matas Méndez, Pablo; Sansano-Maestre, Jose; González González, Fernando; Mateo Barrientos, Marta; Gómez Muñoz, María TeresaZoonotic leishmaniasis caused by Leishmania infantum is distributed worldwide and affects humans and domestic and wild mammals. In Europe, specifically in the Mediterranean basin, leishmaniasis is endemic due to the concurrence of the phlebotomine vectors and reservoir mammals, including carnivorous wildlife species and other less studied wild species. In this article, spleen, skin, and eye or oral swabs taken from 134 wild mammals admitted to five wildlife recovery centers in Spain were used. PCR employing fragments of the Repeat region, ITS1, and SSUrRNA were used for detection, and positive samples were processed for sequencing. L. infantum was detected in three out of the nine species analyzed, including European hedgehog, European badger, and red squirrel, with percentages ranging from 11.53 to 35.71%, depending on the species. Most of the species showed higher percentages of positivity in spleen samples than in skin samples. A small number of animals from the remaining six species tested negative, including Algerian hedgehog, stone marten, least weasel, garden dormouse, western polecat, and Egyptian mongoose. Hedgehogs and badgers are good candidates for consideration as epidemiological sentinels and pose a higher risk as potential reservoirs of leishmaniasis based on their percentage of infection and wide distribution.Item Exploring the Prevalence and Resistance of Campylobacter in Urban Bird Populations(Veterinary Sciences, 2024) Mencía Gutiérrez, Aida; García Peña, Francisco Javier; González González, Fernando; Pastor Tiburón, Natalia; Pérez Cobo, Iratxe; Marín Martínez, María; Martín Maldonado, BárbaraThe increasing urbanization of ecosystems has had a significant impact on wildlife over the last few years. Species that find an unlimited supply of food and shelter in urban areas have thrived under human presence. Wild birds have been identified as amplifying hosts and reservoirs of Campylobacter worldwide, but the information about its transmission and epidemiology is still limited. This study assessed the prevalence of Campylobacter in 137 urban birds admitted at a wildlife rescue center, with 18.8% of individuals showing positive. C. jejuni was the most frequent species (82.6%), followed by C. coli and C. lari (4.3% each). The order Passeriformes (33.3%) showed significant higher presence of Campylobacter when compared to orders Columbiformes (0%) and Ciconiiformes (17.6%), as well as in samples collected during the summer season (31.9%), from omnivorous species (36.8%) and young individuals (26.8%). Globally, Campylobacter displayed a remarkable resistance to ciprofloxacin (70.6%), tetracycline (64.7%), and nalidixic acid (52.9%). In contrast, resistance to streptomycin was low (5.8%), and all the isolates showed susceptibility to erythromycin and gentamycin. The results underline the importance of urban birds as reservoirs of thermophilic antimicrobial-resistant Campylobacter and contribute to enhancing the knowledge of its distribution in urban and peri-urban ecosystems.Item West Nile Virus Seroprevalence in Wild Birds and Equines in Madrid Province, Spain(Veterinary Sciences, 2024) Williams, Richard Alexander John; Criollo Valencia, Hillary A.; López Márquez, Irene; González González, Fernando; Llorente, Francisco; Jiménez Clavero, Miguel Ángel; Busquets, Núria; Mateo Barrientos, Marta; Ortiz Díez, Gustavo; Ayllón Santiago, TaniaSimple Summary: West Nile virus (WNV) is a flavivirus that circulates among birds and mosquitoes and can cause outbreaks in people and horses, sometimes leading to serious brain-related illness and death. This study aimed to investigate WNV circulation in birds and horses in Madrid, Spain. Through serological testing (cELISA), a proportion of birds were positive for WNV antibodies, indicating potential exposure. Four birds and one horse were confirmed positive for WNV antibodies with a second test, while four other birds showed antibodies to an undetermined flavivirus. Because birds positive for WNV antibodies were adults, they might have been exposed elsewhere. The horse had previously lived in a WNV endemic zone. The birds positive for flavivirus included two young birds that had not traveled outside Madrid. The presence of antibodies in two juvenile birds that could hardly fly suggests local circulation of flavivirus in birds in Madrid. The study addresses the potential circulation of WNV or related flaviviruses in birds in Madrid, emphasizing the need for increased surveillance to understand transmission dynamics and the principal species involved. Given the growing incidence and spread of WNV in Spain, continued research is vital for risk assessment and implementing effective control measures.Item The potential use of birds as bioindicators of suspended atmospheric microplastics and artificial fibers(Ecotoxicology and Environmental Safety, 2024) Wayman, Chloe; Fernández Piñas, Francisca; Fernández Valeriano, Rocío; Anibarro García-Baquero, Gonzalo; López Márquez, Irene; González González, Fernando; Rosal, Roberto; González Pleiter, MiguelMicroplastics (MPs) and artificial fibers (AFs) have been detected suspended tens of meters above ground level in the atmosphere, yet empirical data on them remain scarce. This study aimed to investigate the presence of MPs and AFs in the digestive and respiratory systems of two abundant bird species, the Common House Martin (Delichon urbicum) and the Common Swift (Apus apus), within the Community of Madrid, Spain. Given that these birds spend the majority of their lives airborne, engaging in activities such as mating and sleeping during flight, the research sought to assess the potential of using these bird species as bioindicators for suspended atmospheric MPs and AFs. Samples were obtained from necropsies of birds (N = 24) collected primarily between spring and summer from 2021 to 2023. Only individuals that died within the initial 24-hour period and had not been fed were selected for examination to avoid contamination. MPs and AFS were identified by micro-FTIR, characterized and quantified. Results revealed that 75 % of the sampled birds exhibited at least one MPs in their respiratory and/or digestive system. All identified MPs were fibers, with polyester (PES) being the most predominant (48 %), followed by acrylic fibers (ACR; 28 %), and polyethylene (PE; 18 %). The average concentrations in the respiratory system were 1.12 ± 0.45 MPs/specimen and 2.78 ± 1.04 AFs/specimen for Common Swift and 0.75 ± 0.30 MPs/specimen and 0.75 ± 0.36 AFs/specimen for House Martin. In the digestive system, these were 1.92 ± 0.72 MPs/specimen and 3.42 ± 0.69 AFs/specimen for Common Swift, and 1.34 ± 0.50 MPs/specimen and 1.39 ± 0.47 AFs/specimen for House Martin. Birds collected areas with high population density located in the direction of the prevailing winds showed a concentration of MPs significantly higher in the digestive system. Taken together, these findings confirmed the potential use of these birds as bioindicators for monitoring of suspended atmospheric MPs and AFs.