The aims of this study were to determine the seroprevalence of infection by ruminants Lentivirus in dairy goats in the semiarid of the Paraiba State, Northeastern Brazil, to identify risk factors associated with the herd-level prevalence and to perform molecular detection of the agent. A total of 1,047 dairy goats from 110 herds were randomly selected from the county of Monteiro, Paraiba State, and serum samples were collected from March 2009 to December 2011. For the diagnosis of Lentivirus infection, the agar gel immunodiffusion test (AGID) was used. One year after that a new serology was performed and the real-time PCR assay was applied in blood and milk samples from 48 goats from four herds with seropositive animals. Prevalence of positive herds and seropositive animals at AGID were 44.6% (95% CI=35.1-54.3%) and 8.1% (95% CI =5.6-16.8%), respectively. Umbilical cord cutting and disinfection (odds ratio = 2.44; p = 0.048) and conditions of animal agglomeration (odds ratio=3.45; p=0.048) were associated with herd-level prevalence. One year after the serological profile, the permanence of infected animals detected by real-time PCR in blood and milk samples was verified. Real-time PCR using white blood cells had a good performance, with sensitivity of 100%, specificity of 92.86%, concordance of 93.75% and Kappa index of 0.765. It was suggested to teach sanitary measures to the herd owners in order to encourage them to adopt prevention measures aiming to reduce the spread of the infection in the herds.
The management of acute dengue patients during outbreaks is a challenging problem. Most of the dengue fever cases are benign, but some cases develop into a severe and possibly lethal vasculopathy, known as dengue hemorrhagic fever. Early symptoms of dengue and hemorrhagic fever are very similar. An early differential diagnosis is needed to predict which of these two clinical presentations is crucial to proper patient care and public health management. This study evaluates the predictive potential of specific mRNA expression markers of dengue hemorrhagic fever using quantitative real-time PCR assays. Six candidate "dengue hemorrhagic fever specific signature genes" were evaluated and all showed good correlation among their transcription levels at early days of infection and the later development of severe vasculopathy. The markers selected were able to indicate, at early stages of infection, the evolution of a dengue-infected patient to the severe form of the illness. Despite the fact that these results grant further validation studies, the panel of candidate prognostic markers obtained demonstrated the potential to be useful for clinical use in the form of a fast assay based in blood samples.
The hoary fox (Pseudalopex vetulus) is a wild canid native to Brazil and is commonly found in the semiarid northeastern area living in contact with cattle. The main purpose of this study was to investigate the presence of Neospora caninum and Toxoplasma gondii DNA in hoary foxes, in the state of Paraíba, Brazil. Brain tissue samples were collected from 49 hoary foxes. From the samples, DNA extraction and the polymerase chain reaction (PCR) were performed using specific primers for N. caninum and T. gondii. The prevalences found were 14.3% (7/49) for T. gondii and 12.2% (6/49) for N. caninum. The molecular identities of the amplified products were confirmed by means of the sequencing reaction. This study demonstrated the presence of N. caninum and T. gondii DNA in free-ranging hoary foxes in Brazil for the first time, thus confirming that this species is an intermediate host.
A acupuntura é um dos métodos mais antigos da Medicina Tradicional Chinesa (MTC) que consiste na técnica de estímulo cutâneo com agulhas em locais pré-determinados (os acupontos), para prevenir ou tratar doenças, sendo usada na imunomodulação, onde atua na atividade hemodinâmica, aumentando a população e atividade das células Natural Killers, CD4+, CD8+, dentre outras. Por este motivo, acupuntura vem sendo utilizada como terapia complementar no tratamento de algumas doenças infecciosas, como a cinomose canina que é uma das doenças infecciosas mais importantes dos caninos, sendo endêmica no Brasil, altamente contagiosa, levando a quadro neurológico e morte. Os animais acometidos geralmente são os que não foram primovacinados. Este trabalho objetivou avaliar a resposta humoral de cães a partir da administração de diferentes doses de vacina contra cinomose associada aos estímulos nos acupontos IG4 (Hegu), VG14 (Dahzui) e E36 (Zusanli), e foi desenvolvido no Hospital Veterinário do Departamento de Medicina Veterinária da Universidade Federal Rural de Pernambuco. Foram realizadas imunizações em 18 cães, com idades variadas, distribuídas aleatoriamente em cinco grupos, sendo eles: Grupo I (G1) – três animais que receberam a dose usual de vacina, no total de 1 mL, por via subcutânea na região do hipocôndrio direito; Grupo II (G2) – dois animais que receberam 1mL da dose usual de vacina, por via subcutânea na região do hipocôndrio direito e estímulos nos acupontos IG4, VG14 e E36. Grupo III (G3) - quatro animais que receberam no total de 1 mL de NaCl, por via subcutânea na região do hipocôndrio direito e estímulo nos acupontos IG4, VG14 e E36. Grupo IV (G4) - cinco animais que receberam 0,2 mL da dose vacinal, por via subcutânea, na região do hipocôndrio direito e estímulo nos acupontos IG4, VG14 e E36. Grupo V (G5) - dois animais que receberam 0,2 mL da dose vacinal por via subcutânea na região do hipocôndrio direito. A avaliação hematológica foi realizada antes de administração de qualquer protocolo experimental (D0) e 12 (D12) dias após a administração dos protocolos. Os parâmetros avaliados foram o perfil hematológico e titulação de anticorpos anti-CDV. Os resultados obtidos demonstraram que a estimulação pela acupuntura elevou o título de anticorpos contra cinomose dos cães, em todos os grupos experimentais, até mesmo aqueles que não foram revacinados, mas que apresentavam um título médio anticorpos, demonstrando a real atividade imunoestimulante da acupuntura. Além disso, os parâmetros leucométricos demonstraram uma melhora na condição geral das defesas dos animais, uma vez que, em média, houve maior equilíbrio desses parâmetros após o uso da acupuntura. De acordo com nossos resultados, podemos concluir que a acupuntura pode se tornar uma técnica promissora no estímulo imunológico pré-vacinal de cães.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
customersupport@researchsolutions.com
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.