Erratum to “Canine babesiosis: A Brazilian perspective” [Vet. Parasitol. 141 (2006) 197–203]     

Filipe Dantas-Torres  Luciana Aguiar Figueredo 《Veterinary parasitology》2007

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Intraguild predation between an exotic and a native coccinellid in Argentina: the role of prey density     

Mirande  Luciana  Desneux  Nicolas  Haramboure  Marina  Schneider  Marcela Inés 《Journal of pest science》2015,88(1):155-162

Journal of Pest Science - Harmonia axyridis Pallas is a generalist predator native to Asia. It has been released both for classical and neoclassical biological control programs worldwide. Its...  相似文献   

Protective effect of oral administration of transgenic tobacco seeds against verocytotoxic Escherichia coli strain in piglets     

Luciana Rossi  Vittorio Dell’Orto  Simona Vagni  Vittorio Sala  Serena Reggi  Antonella Baldi 《Veterinary research communications》2014,38(1):39-49

The use of transgenic plants as delivery system for antigenic proteins is attractive for its simplicity and increases likelihood for local immune response at sites of infection. The aim of this study was to evaluate the protective effect of oral administration of tobacco seeds, expressing the FedA, the major protein of the F18 adhesive fimbriae, and B subunit of verocytotoxin, against verocytotoxin-producing E. coli (VTEC) strain in piglets. Forty-three early weaned piglets, were randomly divided into 4 experimental groups: 3 test groups and a control. Treatment groups orally received a bolus, with different dose of tobacco seeds on 0, 1, 2, 14 days post primary administration. After challenge, with 1*10¹⁰ CFU of O138 Escherichia coli strain, piglets showed clinical scores significantly higher in the control group compared to orally immunized groups (P?<?0.05) and the latter showed a faster recovery than in CG. In conclusion, oral administration of recombinant tobacco seeds expressing antigenic proteins against VTEC strains can induce a protective effect against challenger strain in piglets.  相似文献   

Effects of four additive solutions on canine leukoreduced red cell concentrate quality during storage     

Luciana A. Lacerda  Nicole R.C. Hlavac  Silvia R. Terra  Franciele P. Back  K. Jane Wardrop  Félix H.D. González 《Veterinary clinical pathology / American Society for Veterinary Clinical Pathology》2014,43(3):362-370

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FDG‐PET IN HEALTHY AND EPILEPTIC LAGOTTO ROMAGNOLO DOGS AND CHANGES IN BRAIN GLUCOSE UPTAKE WITH AGE     

Tarja S. Jokinen  Merja Haaparanta‐Solin  Ranno Viitmaa  Tove J. Grönroos  Jarkko Johansson  Luciana Bergamasco  Marjatta Snellman  Liisa Metsähonkala 《Veterinary radiology & ultrasound》2014,55(3):331-341

Regional cerebral metabolism and blood flow can be measured noninvasively with positron emission tomography (PET). 2‐[¹⁸F]fluoro‐2‐deoxy‐D‐glucose (FDG) widely serves as a PET tracer in human patients with epilepsy to identify the seizure focus. The goal of this prospective study was to determine whether juvenile or adult dogs with focal‐onset epilepsy exhibit abnormal cerebral glucose uptake interictally and whether glucose uptake changes with age. We used FDG‐PET to examine six Lagotto Romagnolo dogs with juvenile epilepsy, two dogs with adult‐onset epilepsy, and five control dogs of the same breed at different ages. Three researchers unaware of dog clinical status visually analyzed co‐registered PET and magnetic resonance imaging (MRI) images. Results of the visual PET analyses were compared with electroencephalography (EEG) results. In semiquantitative analysis, relative standard uptake values (SUV) of regions of interest (ROI) drawn to different brain regions were compared between epileptic and control dogs. Visual analysis revealed areas of hypometabolism interictally in five out of six dogs with juvenile epilepsy in the occipital, temporal, and parietal cortex. Changes in EEG occurred in three of these dogs in the same areas where PET showed cortical hypometabolism. Visual analysis showed no abnormalities in cerebral glucose uptake in dogs with adult‐onset epilepsy. Semiquantitative analysis detected no differences between epileptic and control dogs. This result emphasizes the importance of visual analysis in FDG‐PET studies of epileptic dogs. A change in glucose uptake was also detected with age. Glucose uptake values increased between dog ages of 8 and 28 weeks and then remained constant.  相似文献   

CEREBRAL GLUCOSE UTILIZATION MEASURED WITH HIGH RESOLUTION POSITRON EMISSION TOMOGRAPHY IN EPILEPTIC FINNISH SPITZ DOGS AND HEALTHY DOGS     

Ranno Viitmaa  Merja Haaparanta‐Solin  Marjatta Snellman  Sigitas Cizinauskas  Toomas Orro  Erja Kuusela  Jarkko Johansson  Tapio Viljanen  Tarja S. Jokinen  Luciana Bergamasco  Liisa Metsähonkala 《Veterinary radiology & ultrasound》2014,55(4):453-461

In human epileptic patients, changes in cerebral glucose utilization can be detected 2‐deoxy‐2‐[¹⁸F] fluoro‐d ‐glucose positron emission tomography (FDG‐PET). The purpose of this prospective study was to determine whether epileptic dogs might show similar findings. Eleven Finnish Spitz dogs with focal idiopathic epilepsy and six healthy dogs were included. Dogs were examined using electroencephalography (EEG) and FDG‐PET, with epileptic dogs being evaluated during the interictal period. Visual and semi‐quantitative assessment methods of FDG‐PET were compared and contrasted with EEG findings. Three independent observers, unaware of dog clinical status, detected FDG‐PET uptake abnormalities in 9/11 epileptic (82%), and 4/8 healthy dogs (50%). Occipital cortex findings were significantly associated with epileptic status (P = 0.013). Epileptic dogs had significantly lower standardized uptake values (SUVs) in numerous cortical regions, the cerebellum, and the hippocampus compared to the control dogs. The lowest SUVs were found in the occipital lobe. White matter normalized and left‐right asymmetry index values for all pairs of homologous regions did not differ between groups. Visual evaluation of the EEGs was less sensitive (36%) than FDG‐PET. Both diagnostic tests were consensual and specific (100%) for occipital findings, but EEG had a lower sensitivity for detecting lateralized foci than FDG‐PET. Findings supported the use of FDG‐PET as a diagnostic test for dogs with suspected idiopathic epilepsy. Visual and semiquantitative analyses of FDG‐PET scans provided complementary information. Findings also supported the theory that epileptogenesis may occur in multiple brain regions in Finnish Spitz dogs with idiopathic epilepsy.  相似文献   

Assessment of qualitative and quantitative parameters of healthy thyroid gland in adult horses by magnetic resonance imaging     

Gustavo Fernandes Viana  Monica Midon  Mariana Werneck Fonseca  Alessandre Hataka  Luciana Carandina  Laís Melício Cintra Bueno  José Nicolau Próspero Puoli Filho  Vânia Maria de Vasconcelos Machado 《Anatomia, histologia, embryologia》2021,50(5):839-848

In humans and pets, magnetic resonance imaging (MRI) provides important adjunctive anatomic information about the thyroid and its adjacent structures. To the best of our knowledge, however, no studies have been reported regarding the use of MRI for thyroid evaluation in horses. The aim of this study was to obtain qualitative and quantitative parameters of healthy thyroid gland in adult horses by MRI. Eleven horses were submitted to thyroid MRI evaluation. The healthy thyroid of these animals was ensured by normal examinations performed before (free thyroxine and ultrasound) and after (cytology) to MRI. It was concluded that the dorsal spin-echo T1-weighted, fast spin-echo T2-weighted, sagittal STIR and a three-dimensional T1-weighted gradient echo were the sequences that best characterized the thyroid lobes. Qualitatively, there was a significant variation in the elliptical format of some lobes considering the sagittal plane, which oscillated between rounded and flattened conformation. Excellent reproducibility of the quantitative thyroid parameters obtained was verified. The thyroid gland total volume mean of observers was 14.31 cm³ (±0.69). In relation with comparisons between quantitative parameters of left and right lobes, only differences regarding their respective lengths were observed. Thus, we can infer that the difference in some thyroid lobes format can be explained by the significant variation identified between left and right lobes lengths.  相似文献   

Evaluation of different fractions of the organic matter of peat on tetracycline retention in environmental conditions: in vitro studies     

Shenia Oliveira Souza  Marina de Magalhães Silva  Josué Carinhanha Caldas Santos  Luciana Camargo de Oliveira  Janaina Braga do Carmo  Wander Gustavo Botero 《Journal of Soils and Sediments》2016,16(6):1764-1775

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Tagging the juvenile locus in soybean [Glycine max (L.) Merr.] with molecular markers     

Carlos A. Cairo  Juliana Stein  Luciana Delgado  Santiago Bortolotti  Sebastián A. Guelman  Juan Pablo A. Ortiz  Eligio N. Morandi 《Euphytica》2002,124(3):387-395

Soybean cultivars carrying the `long juvenile trait' show a delayed flowering response under short day conditions. The incorporation of this character into genotypes of agronomic interest may allow a broader range of sowing dates and latitudes for a single cultivar adaptation. The objective of this work was to identify molecular markers linked to the juvenile locus in soybean. Experiments were carried out using two pairs of near isogenic lines(NILs) differing in the presence of the long juvenile trait, and RAPD markers. Four hundred primers were first screened to find polymorphism associated with the trait. Additional differences between NILs were sought by digesting the genomic DNA with five restriction enzymes. Polymorphic fragments detected between NILs were tested for linkage to the juvenile locus in the corresponding F₂ segregating populations. Marker bc357-HaeIII was linked (χ²L = 46.316) to the juvenile locus with an estimated recombination frequency of 0.13 ± 0.03in one of the genetic backgrounds studied. The fragment was cloned, sequenced and converted into a SCAR marker. Moreover,bc357-HaeIII was used as RFLP probe. Both, SCAR and RFLP generated markers linked to the juvenile locus in the two genetic backgrounds analysed. Results presented in this work can be utilised for both, the localisation of the gene associated with the character and for tagging the juvenile trait in soybean breeding programs. This revised version was published online in August 2006 with corrections to the Cover Date.  相似文献   

Prevalence and risk factors for agents causing diarrhea (Coronavirus,Rotavirus, Cryptosporidium spp., Eimeria spp., and nematodes helminthes) according to age in dairy calves from Brazil     

Cruvinel  Leonardo Bueno  Ayres  Henderson  Zapa  Dina María Beltrán  Nicaretta  João Eduardo  Couto  Luiz Fellipe Monteiro  Heller  Luciana Maffini  Bastos  Thiago Souza Azeredo  Cruz  Breno Cayeiro  Soares  Vando Edésio  Teixeira  Weslen Fabricio  de Oliveira  Juliana Silva  Fritzen  Juliana Tomazi  Alfieri  Amauri Alcindo  Freire  Roberta Lemos  Lopes  Welber Daniel Zanetti 《Tropical animal health and production》2020,52(2):777-791

The present study attempted to verify the prevalence of and risk factors for diarrhea-causing agents in dairy calves from Brazil. Additionally, ages with a higher risk of occurrence for each agent were verified by means of the receiver operating characteristic (ROC) curve. The collections were performed on 39 farms, belonging to 29 municipalities located in eight states of Brazil. It was possible to conclude that the prevalence of Coronavirus, Rotavirus, Cryptosporidium spp., Eimeria spp., and nematodes was 7.20% (95% CI 4.54–9.78), 6.37% (95% CI 3.85–8.89), 51.52% (95% CI 45.26–55.57), 3.46% (95% CI 2.24–4.67), and 3.46% (95% CI 2.24–4.67), respectively. Ages with higher probabilities of occurrence of these diseases in calves were <?10, >?8, >?6, >?37, and >?36 days, respectively. Diarrhea occurred more significantly (P?<?0.0001) in animals less than 21 days old and mainly on those receiving milk through automatic feeders (P?<?0.001). Cryptosporidium spp. were a risk factor for the occurrence of Rotavirus, and vice versa (P?=?0.0039) and presented a positive correlation with Coronavirus (P?=?0.0089). Calves that drink water from rivers, streams, and ponds had a higher chance of being infected by Eimeria spp. (P?<?0.0001), as well as developing infection by nematodes (P?<?0.0001). The results found in this study highlight the importance of studying the agents of diarrhea together, once they act as coinfection where the losses triggered for the owners will involve some of these agents simultaneously.

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