An unusual case of bacillary angiomatosis in the oral cavity of an AIDS patient who had no concomitant tegumentary lesions – case report and review

ABSTRACT Bacillary angiomatosis (BA) is an angioproliferative disease of immunocompromised patients that usually presents as vascular tumors in the skin and subcutaneous tissues. It is caused by chronic infections with either Bartonella henselae or B. quintana. Oral cavity BA is exceedingly rare and even rarer without simultaneous cutaneous disease. We report herein the case of a 51-year-old HIV-infected man who presented severe odynophagia and an eroded lesion on the hard palate that progressed to an oronasal fistula. No cutaneous lesions were recorded. Doxycycline led to complete resolution. To the best of our knowledge, only six previous cases of oral BA without tegumentary disease have been previously reported and none of them progressed to fistula

Análise comparativa da coordenação motora de crianças nascidas a termo e pré-termo, aos 7 anos de idade

OBJETIVO: comparar o desenvolvimento motor, na idade escolar, de crianças nascidas a termo e pré-termo. MÉTODOS: participaram do estudo dois grupos de crianças, com sete anos de idade: a) grupo pré-termo com 35 crianças, de famílias de baixa renda, nascidas com idade gestacional <34 semanas e/ou peso ao nascimento <1500 g, e b) grupo controle com 35 crianças nascidas a termo, com idade, sexo e nível socioeconômico equivalente ao grupo pré-termo. Todas as crianças foram avaliadas com o teste Movement Assessment Battery for Children (M-ABC). RESULTADOS: o teste de Wilcoxon indicou diferença significativa entre os grupos no escore total (Z=-4,866, p<0,001) e nas subáreas do M-ABC, com pior desempenho no grupo pré-termo. CONCLUSÃO: 57% das crianças do grupo pré-termo apresentaram sinais de transtorno da coordenação, o que ressalta a importância do acompanhamento do desenvolvimento até a idade escolar

Resistência anti-helmíntica em rebanhos caprinos nos biomas Caatinga e Mata Atlântica

Resumo A utilização de anti-helmínticos por longos períodos como principal medida de controle das parasitoses gastrintestinais de ruminantes levou a ineficácia aos levamisol, benzimidazóis e avermectinas. Este estudo descreve a atividade anti-helmíntica in vivo em populações naturais de nematoides trichostrongilídeos de caprinos. Foram selecionados 18 rebanhos provenientes dos biomas Caatinga (n=12) e Mata Atlântica (n=6), do Estado da Bahia, Brasil, criados em pastagens comunais em região semiárida. Grupos de oito a 10 animais foram tratados com albendazol (ABZ), ivermectina (IVM), levamisol (LEV), moxidectina (MOX) e closantel (CLOS). Os resultados do Teste de Redução da Contagem de Ovos nas Fezes indicaram resistência simultânea dos gêneros Haemonchus sp. e Trichostrongylus spp. para o ABZ, IVM, LEV, MOX e CLOS. As percentagens de eficácia variaram de 0-92%, 0-75%, 0-91%, 69-97% e 0-85% para o ABZ, IVM, LEV, MXD e CLOS, respectivamente, no bioma Caatinga e 0-59% para o ABZ e 9-59% para o IVM no bioma Mata Atlântica. Verificou-se nos rebanhos eficácia inferior a 95% para estes anti-helmínticos, com exceção de um único rebanho no qual a eficácia para MOX foi de 97%, o que sugere a presença de NGIs resistentes aos principais classes de anti-helmínticos em rebanhos caprinos destes biomas

Prognostication for oral carcinomas based on two histological scoring systems (BD and iBD models)

Peer reviewe

AG129 Mice as a Comprehensive Model for the Experimental Assessment of Mosquito Vector Competence for Arboviruses

Arboviruses (an acronym for &ldquo;arthropod-borne virus&rdquo;), such as dengue, yellow fever, Zika, and Chikungunya, are important human pathogens transmitted by mosquitoes. These viruses impose a growing burden on public health. Despite laboratory mice having been used for decades for understanding the basic biological phenomena of these viruses, it was only recently that researchers started to develop immunocompromised animals to study the pathogenesis of arboviruses and their transmission in a way that parallels natural cycles. Here, we show that the AG129 mouse (IFN &alpha;/&beta;/&gamma; R&minus;/&minus;) is a suitable and comprehensive vertebrate model for studying the mosquito vector competence for the major arboviruses of medical importance, namely the dengue virus (DENV), yellow fever virus (YFV), Zika virus (ZIKV), Mayaro virus (MAYV), and Chikungunya virus (CHIKV). We found that, after intraperitoneal injection, AG129 mice developed a transient viremia lasting several days, peaking on day two or three post infection, for all five arboviruses tested in this study. Furthermore, we found that the observed viremia was ample enough to infect Aedes aegypti during a blood meal from the AG129 infected mice. Finally, we demonstrated that infected mosquitoes could transmit each of the tested arboviruses back to na&iuml;ve AG129 mice, completing a full transmission cycle of these vector-borne viruses. Together, our data show that A129 mice are a simple and comprehensive vertebrate model for studies of vector competence, as well as investigations into other aspects of mosquito biology that can affect virus&ndash;host interactions

Reporter virus neutralization test evaluation for Dengue and Zika Virus diagnosis in flavivirus endemic area

Ministry of Health of Brazil and by the grants from CNPq (process 303999/2016-0 and 440405/2016-5) and CAPES (Zika fast track project). Pan American Health Organization SCON2016-01353, NIH grants AI142759, AI127744, and AI136126, and awards from the Kleberg Foundation, John S. Dunn Foundation, Amon G. Carter Foundation, Gilson Longenbaugh Foundation, and Summerfield Robert Foundation.University of Texas Medical Branch. Department of Biochemistry & Molecular Biology. Galveston, TX, USA / State University of Pará. Post Graduation Program in Parasitary Biology in the Amazon. Belém, PA, Brazil.University of Texas Medical Branch. Department of Biochemistry & Molecular Biology. Galveston, TX, USA / Ministério da Saúde. Secretaria de Vigilância em Saúde. Instituto Evandro Chagas. Ananindeua, PA, Brasil.University of Texas Medical Branch. Department of Biochemistry & Molecular Biology. Galveston, TX, USA.Ministério da Saúde. Secretaria de Vigilância em Saúde. Instituto Evandro Chagas. Ananindeua, PA, Brasil.Ministério da Saúde. Secretaria de Vigilância em Saúde. Instituto Evandro Chagas. Ananindeua, PA, Brasil.Ministério da Saúde. Secretaria de Vigilância em Saúde. Instituto Evandro Chagas. Ananindeua, PA, Brasil.Ministério da Saúde. Secretaria de Vigilância em Saúde. Instituto Evandro Chagas. Ananindeua, PA, Brasil.Ministério da Saúde. Secretaria de Vigilância em Saúde. Instituto Evandro Chagas. Ananindeua, PA, Brasil.Ministério da Saúde. Secretaria de Vigilância em Saúde. Instituto Evandro Chagas. Ananindeua, PA, Brasil.Ministério da Saúde. Secretaria de Vigilância em Saúde. Instituto Evandro Chagas. Ananindeua, PA, Brasil.Ministério da Saúde. Secretaria de Vigilância em Saúde. Instituto Evandro Chagas. Ananindeua, PA, Brasil.Ministério da Saúde. Secretaria de Vigilância em Saúde. Instituto Evandro Chagas. Ananindeua, PA, Brasil.Ministério da Saúde. Secretaria de Vigilância em Saúde. Instituto Evandro Chagas. Ananindeua, PA, Brasil.Ministério da Saúde. Secretaria de Vigilância em Saúde. Instituto Evandro Chagas. Ananindeua, PA, Brasil.Ministério da Saúde. Secretaria de Vigilância em Saúde. Instituto Evandro Chagas. Ananindeua, PA, Brasil / Pará State University. Science and Health Institute. Belém, PA, Brazil.Federal University of Pará. Biological Sciences Institute. Belém, PA, Brazil.University of Texas Medical Branch. Department of Biochemistry & Molecular Biology. Galveston, TX, USA .University of Texas Medical Branch. Department of Biochemistry & Molecular Biology. Galveston, TX, USA / State University of Pará. Post Graduation Program in Parasitary Biology in the Amazon. Belém, PA, Brazil / Ministério da Saúde. Secretaria de Vigilância em Saúde. Instituto Evandro Chagas. Ananindeua, PA, Brasil.Reporter virus neutralization test (RVNT) has been used as an alternative to the more laborious and time-demanding conventional PRNT assay for both DENV and ZIKV. However, few studies have investigated how these techniques would perform in epidemic areas with the circulation of multiple flavivirus. Here, we evaluate the performance of ZIKV and DENV Rluc RVNT and ZIKV mCh RVNT assays in comparison to the conventional PRNT assay against patient sera collected before and during ZIKV outbreak in Brazil. These samples were categorized into groups based on (1) acute and convalescent samples according to the time of disease, and (2) laboratorial diagnostic results (DENV and ZIKV RT-PCR and IgM-capture ELISA). Our results showed that DENV Rluc assay presented 100% and 78.3% sensitivity and specificity, respectively, with 93.3% accuracy, a similar performance to the traditional PRNT. ZIKV RVNT90, on the other hand, showed much better ZIKV antibody detection performance (around nine-fold higher) when compared to PRNT, with 88% clinical sensitivity. Specificity values were on average 76.8%. Even with these results, however, ZIKV RVNT90 alone was not able to reach a final diagnostic conclusion for secondary infection in human samples due to flavivirus cross reaction. As such, in regions where the flavivirus differential diagnosis represents a challenge, we suggest the establishment of a RVNT panel including other flaviviruses circulating in the region, associated with the other serological techniques such as IgM ELISA and the investigation of seroconversion, in order to help define an accurate diagnostic conclusion using serology