Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 11 de 11
Filtrar
Mais filtros

Base de dados
País/Região como assunto
Tipo de documento
País de afiliação
Intervalo de ano de publicação
1.
Enferm Infecc Microbiol Clin ; 35(9): 563-568, 2017 Nov.
Artigo em Inglês, Espanhol | MEDLINE | ID: mdl-27445175

RESUMO

To determine the prevalence and diversity of Borrelia burgdorferi sensu lato (s.l.) in an endemic Nature Reserve (Sierra del Sueve) in North-Western Spain, and the risk of human exposure to infected ticks in Asturias, 1013 questing ticks and 70 small mammals were collected between 2012 and 2014. A retrospective descriptive analysis was also carried out on human Lyme borreliosis (LB) cases reported to the local hospital (Cabueñes). Samples were screened for B. burgdorferi s.l. presence by a nested PCR assay, and genospecies were confirmed by sequencing. B. burgdorferi s.l. was detected in 1.4% (12/845) of I. ricinus questing nymphs, 9.1% (2/33) of questing adults, and 12.9% (9/70) of small mammals, as well as in the other tick species. PCR positive samples of 17 questing tick and 6 small mammals were sequenced. Four genospecies were identified: B. afzelii, B. garinii, B. lusitaniae, and B. valaisiana. Phylogenetic analyses based on the flaB gene showed the heterogeneity of B. afzelii in this area. The detection of B. burgdorferi s.l. among questing ticks and small mammals in the study area, as well as the abundance of ticks and of large wild and domestic mammals, indicate a high risk of infection by B. burgdorferi s.l. in the area. Reporting of LB cases to the local hospital support this, and shows the need of thorough monitoring of B. burgdorferi infection in ticks and hosts in the area. More investigations are needed to assess the role of different wildlife species and the risk of transmission to humans.


Assuntos
Borrelia burgdorferi/classificação , Borrelia burgdorferi/isolamento & purificação , Doenças Endêmicas , Doença de Lyme/epidemiologia , Doença de Lyme/veterinária , Mamíferos/microbiologia , Carrapatos/microbiologia , Adolescente , Adulto , Animais , Criança , Feminino , Humanos , Masculino , Prevalência , Estudos Retrospectivos , Espanha/epidemiologia , Adulto Jovem
2.
Ticks Tick Borne Dis ; 13(4): 101961, 2022 07.
Artigo em Inglês | MEDLINE | ID: mdl-35490548

RESUMO

The occurrence of tick-borne pathogens (TBPs) of human and veterinary interest was studied in questing and feeding ticks collected from wild animals in a region in North-Western Spain. A total of 529 ticks (489 questing, 40 feeding) of seven different species (386 Ixodes ricinus, 53 Haemaphysalis concinna, 27 Haemaphysalis punctata, 25 Dermacentor marginatus, 21 Haemaphysalis inermis, 15 Dermacentor reticulatus, and two Rhipicephalus bursa) were analyzed. Molecular analysis of the 16S rRNA gene in I. ricinus ticks, revealed the presence of two phylogenetic groups in the region. Most of the sequenced ticks (96%) were assigned to I. ricinus haplogroup and 4% of the ticks were phylogenetically related to I. inopinatus haplogroup. Feeding ticks were removed from 17 animals from seven wild species (seven roe deer -Capreolus capreolus-, three wolves -Canis lupus-, two Iberian red deer -Cervus elaphus hispanicus-, two European wild boar -Sus scrofa-, one Cantabrian brown bear -Ursus arctos-, one Eurasian badger -Meles meles-, and one red fox -Vulpes vulpes-). Presence of Rickettsia spp., Anaplasma phagocytophilum, piroplasms, Borrelia burgdorferi sensu lato (s.l.) and Coxiella burnetii were tested in ticks by specific PCR. A total of 92 (17.4%) of the 529 ticks analyzed were positive for at least one of the TBPs tested. Sequencing revealed the presence of the genospecies "Candidatus Rickettsia rioja", Rickettsia raoultii, and Anaplasma phagocytophilum in both questing and feeding ticks. Rickettsia slovaca, Borrelia lusitaniae, Borrelia afzelii, Borrelia garinii, Borrelia burgdorferi sensu stricto and Babesia bigemina were only detected in questing ticks, while Babesia sp. badger type A, Theileria OT3 and Hepatozoon canis occurred only in engorged ticks. None of the ticks were positive for C. burnetii. The analysis of the 16S rRNA gene sequences of A. phagocytophilum revealed the presence of three variants (I, X and W) circulating in the region. New host-tick-pathogen interactions have been revealed, finding for the first time the human pathogen R. raoultii in D. reticulatus removed from a Cantabrian brown bear. Co-occurrence between different TBPs were detected in 4.3% of the ticks. The association B. burgdorferi s.l./Rickettsia spp. was detected in questing ticks; and Rickettsia spp./piroplasms and A. phagocytophilum/Theileria OT3 in feeding ticks. The presence of pathogenic agents constitutes a threat to human and animal health, and should be considered in the diagnosis and treatment after a tick bite. This study increases the knowledge on TBPs diversity of medical and veterinary interest circulating between ticks and their hosts in North-Western Spain.


Assuntos
Anaplasma phagocytophilum , Babesia , Grupo Borrelia Burgdorferi , Borrelia burgdorferi , Borrelia , Coxiella burnetii , Cervos , Ixodes , Ixodidae , Rickettsia , Anaplasma phagocytophilum/genética , Animais , Babesia/genética , Borrelia/genética , Borrelia burgdorferi/genética , Grupo Borrelia Burgdorferi/genética , Coxiella burnetii/genética , Ixodes/microbiologia , Ixodidae/genética , Filogenia , RNA Ribossômico 16S/genética , Rickettsia/genética , Espanha/epidemiologia
3.
Front Psychol ; 12: 674054, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-34113300

RESUMO

Psychology research on men studies, attractiveness, and partner preferences has evolved from the influence of sociobiological perspectives to the role of interactions in shaping election toward sexual-affective relationships and desire toward different kinds of masculinities. However, there is a scientific gap in how language and communicative acts among women influence the kind of partner they feel attracted to and in the reproduction of relationship double standards, like the myth of the "warrior's rest" where female attractiveness to "bad boys" is encouraged or supported. Some women imitate "the warrior" behavior of men by choosing dominant traditional masculinities (DTM) to have "fun" with and oppressed traditional masculinities (OTM) for "rest" after the "fun" with DTM-choosing an OTM for a stable relationship, but perhaps without passion, while also feeling attraction toward DTM, a response which perpetuates the chauvinist double standard that the feminist movement has condemned when men behave in this sexist way. Through conducting a qualitative study with communicative daily life stories, this article explores, on the one hand, how language and social interaction among women can lead to the reproduction of the DTM role by women and, on the other hand, also how new alternative masculinities (NAM) offer an alternative by explicitly rejecting, through the language of desire, to be the rest for the female warrior, the second fiddle to any woman. This has the potential to become a highly attractive alternative to DTM. Findings provide new knowledge through the analysis of communicative acts and masculinities evidencing the importance of language uses in the reproduction of the double standards in gender relations and to understand how and why these practices are maintained and which kind of language uses can contribute to preventing them. Implications for research and interventions on preventive socialization of gender violence are discussed.

4.
Front Psychol ; 12: 736545, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-34393962

RESUMO

[This corrects the article DOI: 10.3389/fpsyg.2021.674054.].

5.
Front Public Health ; 9: 602964, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-33816414

RESUMO

Background: Dialogic Literary Gatherings (DLG) are evidence-based interventions implemented in very diverse educational and health settings. The main elements that make DLG a co-creation intervention and promote health during the COVID-19 crisis lockdown are presented. This study focuses on the case of a DLG that is being promoted by an adult school in the city of Barcelona. Methods: This qualitative study was conducted using a communicative approach. Seven in-depth interviews with participants in the online DLG have been conducted. Five of them are women without higher education ranging from 56 to 85 years old and two are educators of this school. Results: The main results are 2-fold. First, the factors that make DLG a co-creation intervention, such as egalitarian dialogue and dialogical creation of knowledge in the decision-making process, are found. Second, the results show how DLG is contributing to creating a supportive environment that breaks the social isolation of confinement and improving the participants' psychological and social well-being. Conclusions: The findings from this study contribute to generating knowledge about a co-creation process between adult education participants and educators in education and health promotion during the COVID-19 lockdown, which could be replicated in other contexts.


Assuntos
COVID-19/psicologia , Educação a Distância , Saúde Mental , Isolamento Social , Idoso , Idoso de 80 Anos ou mais , Controle de Doenças Transmissíveis , Educação não Profissionalizante , Feminino , Humanos , Pessoa de Meia-Idade , Pesquisa Qualitativa , Leitura , Espanha
6.
Animals (Basel) ; 11(5)2021 May 13.
Artigo em Inglês | MEDLINE | ID: mdl-34068431

RESUMO

This study aimed to investigate the seroprevalence of C. burnetii in domestic ruminants, wild ungulates, as well as the current situation of Q fever in humans in a small region in northwestern Spain where a close contact at the wildlife-livestock-human interface exists, and information on C. burnetii infection is scarce. Seroprevalence of C. burnetii was 8.4% in sheep, 18.4% in cattle, and 24.4% in goats. Real-time PCR analysis of environmental samples collected in 25 livestock farms detected Coxiella DNA in dust and/or aerosols collected in 20 of them. Analysis of sera from 327 wild ungulates revealed lower seroprevalence than that found in domestic ruminants, with 8.4% of Iberian red deer, 7.3% chamois, 6.9% fallow deer, 5.5% European wild boar and 3.5% of roe deer harboring antibodies to C. burnetii. Exposure to the pathogen in humans was determined by IFAT analysis of 1312 blood samples collected from patients admitted at healthcare centers with Q fever compatible symptoms, such as fever and/or pneumonia. Results showed that 15.9% of the patients had IFAT titers ≥ 1/128 suggestive of probable acute infection. This study is an example of a One Health approach with medical and veterinary institutions involved in investigating zoonotic diseases.

7.
Dis Aquat Organ ; 84(2): 95-104, 2009 Apr 06.
Artigo em Inglês | MEDLINE | ID: mdl-19476279

RESUMO

We describe the pathology, isolation and characterisation of a virus responsible for an outbreak of a systemic haemorrhagic disease causing high mortality in tadpoles of the common midwife toad Alytes obstetricans in the 'Picos de Europa' National Park in northern Spain. The virus, provisionally designated as the common midwife toad virus (CMTV), was isolated from homogenates of visceral tissue from diseased toad tadpoles following inoculation on epithelioma papulosum cyprini (EPC) cells. Molecular characterisation of the virus, including sequence analysis of the DNA polymerase and major capsid protein genes, showed that the isolated virus was a ranavirus with marked sequence identity to other members of the genus Ranavirus. A rabbit antiserum raised against purified virions was prepared and used to definitively demonstrate systemic distribution of the virus in diseased tadpoles, indicating that the isolated virus was the primary pathogen.


Assuntos
Bufonidae/virologia , Ranavirus/classificação , Ranavirus/isolamento & purificação , Sequência de Aminoácidos , Animais , Infecções por Vírus de DNA/patologia , Infecções por Vírus de DNA/veterinária , Infecções por Vírus de DNA/virologia , Larva/virologia , Dados de Sequência Molecular , Filogenia , Espanha , Proteínas Virais/química , Proteínas Virais/genética
8.
J Virol Methods ; 255: 98-100, 2018 05.
Artigo em Inglês | MEDLINE | ID: mdl-29481880

RESUMO

Louping ill-like virus (LI) has been recently detected in two different locations in the north of Spain and separated by only around 400 km. Using molecular approaches, the viruses causing both outbreaks have been shown to be different to LI virus, but also different to each other. They have been called SSEV (Spanish sheep encephalitis virus) and SGEV (Spanish goat encephalitis virus) taking into account the species from which they were isolated. The aim of this paper was to design a quantitative TaqMan real-time RT-PCR protocol, for the specific diagnostic and quantitation of SGEV. Linearity, efficiency and dynamic range as well as reproducibility and specificity of the method has been tested and established. The method has proved to be valid for the specific detection and viral load quantitation of SGEV genome in virus isolates and tissue samples from infected animals. This assay will be a useful analytical tool in early diagnosis and epidemiological surveys.


Assuntos
Vírus da Encefalite/genética , Encefalite por Arbovirus/veterinária , Doenças das Cabras/diagnóstico , Doenças das Cabras/virologia , Reação em Cadeia da Polimerase em Tempo Real , Sequência de Aminoácidos , Animais , Cabras , Reação em Cadeia da Polimerase em Tempo Real/métodos , Espanha , Carga Viral , Proteínas não Estruturais Virais/química , Proteínas não Estruturais Virais/genética
9.
Parasit Vectors ; 9(1): 435, 2016 08 08.
Artigo em Inglês | MEDLINE | ID: mdl-27502394

RESUMO

BACKGROUND: Vaccination is an attractive ecological alternative to the use of acaricides for parasite control. However, effective anti-parasite vaccines against sarcoptic mange have not yet been developed. The purpose of this study was first to identify Sarcoptes scabiei immunodominant antigens and second to evaluate them as vaccine candidates in a rabbit/S. scabiei var. cuniculi model. METHODS: The S. scabiei Ssλ15 immunodominant antigen was selected by immunoscreening of a S. scabiei var. hominis cDNA. The full-length cDNA was sequenced and cloned into the pGEX vector and the recombinant protein expressed in BL21 (DE3) cells and purified. A vaccination trial was performed consisting of a test group (n = 8) immunised with recAgs (a mix of two recombinant antigens, Ssλ15 and the previously described Ssλ20∆B3) and a control group (n = 8) immunised with PBS. All analyses were performed with R Statistical Environment with α set at 0.050. RESULTS: The full-length open reading frame of the 1,821 nt cloned cDNA encodes a 64 kDa polypeptide, the sequence of which had 96 % identity with a hypothetical protein of S. scabiei. Ssλ15 was localised by immunostaining of skin sections in the tegument surrounding the mouthparts and the coxa in the legs of mites. Rabbit immunisation with recAgs induced high levels of specific IgG (P < 0.010) and increased levels of total IgEs. However, no significant clinical protection against S. scabiei challenge was detected. Unexpectedly, the group immunised with the recAgs mix had significantly higher lesion scores (P = 0.050) although lower mean mite densities than those observed in the control group. These results might indicate that the lesions in the recAgs group were due not only to the mites density but also to an exacerbated immunological response after challenge, which is in agreement with the specific high levels of pro-inflammatory cytokines (IL-1 and TNFα) detected after challenge in this group. CONCLUSIONS: The selected antigens delivered as recombinant proteins had no clinical protective efficacy against S. scabiei infestation although immunisation reduced mite density. However, these results pave the way for future studies on alternative production systems, adjuvants, delivery methods and combinations of antigens in order to manage stimulation of clinical protective immune responses.


Assuntos
Proteínas de Artrópodes/imunologia , Citocinas/imunologia , Imunidade Humoral , Epitopos Imunodominantes/imunologia , Sarcoptes scabiei/imunologia , Escabiose/imunologia , Animais , Anticorpos/imunologia , Proteínas de Artrópodes/administração & dosagem , Proteínas de Artrópodes/genética , Feminino , Humanos , Epitopos Imunodominantes/administração & dosagem , Epitopos Imunodominantes/genética , Coelhos , Sarcoptes scabiei/genética , Escabiose/parasitologia , Escabiose/prevenção & controle , Vacinação
10.
Lipids ; 37(4): 333-41, 2002 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-12030313

RESUMO

A sample of 101 free-living individuals eating their habitual diets had fish consumptions ranging from less than one serving per week to over five servings per week. Statistically significant positive correlations were found between the amounts of EPA (20:5), DHA (22:6), and total n-3 PUFA ingested with the diet and their amounts in serum and in the phospholipid and cholesterol ester fractions of isolated LDL. No statistically significant correlations were observed between the intake and the serum or LDL amounts of any other FA [total n-6 PUFA, linoleic acid (18:2), arachidonic acid (20:4), monounsaturated FA, or saturated FA)]. The increase in serum n-3 PUFA did not affect the Trolox-equivalent antioxidant capacity of serum (1.18 +/- 0.1 7 mmol/L). When isolated LDL were subjected to Cu2+-induced ex vivo oxidation, a statistically significant but negative correlation was found between intake of n-3 PUFA and the rate of appearance of conjugated dienes as well as with the total amount of conjugated dienes. In contrast, intake of n-6 PUFA showed a significant and positive correlation with these two oxidation parameters. The observed results suggest that 22:6 but not 20:5 could have a possible protective effect, whereas perhaps 20:4 and 18:2 could have a prooxidant effect.


Assuntos
Dieta , Produtos Pesqueiros , Lipoproteínas LDL/sangue , Adulto , Idoso , Ácidos Graxos/sangue , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Oxirredução
11.
Vet J ; 186(2): 256-8, 2010 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-19703784

RESUMO

This report describes the isolation and characterisation of the common midwife toad virus (CMTV) from juvenile alpine newts (Mesotriton alpestris cyreni) and common midwife toad (CMT) tadpoles (Alytes obstetricans) in the Picos de Europa National Park in Northern Spain in August 2008. A comparative pathological and immunohistochemical study was carried out using anti-CMTV polyclonal serum. In the kidneys, glomeruli had the most severe histological lesions in CMT tadpoles, while both glomeruli and renal tubular epithelial cells exhibited foci of necrosis in juvenile alpine newts. Viral antigens were detected by immunohistochemical labelling mainly in the kidneys of CMT tadpoles and in ganglia of juvenile alpine newts. This is the first report of ranavirus infection in the alpine newt, the second known species to be affected by CMTV in the past 2 years.


Assuntos
Bufo bufo/virologia , Doenças Transmissíveis Emergentes/veterinária , Infecções por Vírus de DNA/veterinária , Surtos de Doenças/veterinária , Ranavirus/isolamento & purificação , Salamandridae/virologia , Animais , Antígenos Virais/isolamento & purificação , Doenças Transmissíveis Emergentes/epidemiologia , Doenças Transmissíveis Emergentes/patologia , Infecções por Vírus de DNA/epidemiologia , Infecções por Vírus de DNA/patologia , Necrose do Córtex Renal/veterinária , Necrose do Córtex Renal/virologia , Glomérulos Renais/patologia , Glomérulos Renais/virologia , Larva/virologia , Ranavirus/imunologia , Espanha/epidemiologia
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA