Anatomopatologia de bursite cervical (oncocercose) encontrada em bovinos abatidos sob inspeção estadual no estado do Rio de Janeiro

Santos, Álvaro Silva; Costa, Rui; Costa, R.F.R.; Lemos, Leandro Silva de; Carvalho, Eulógio Carlos Queiróz de

doi:10.1590/1678-41625484

Cited by 6 publications

(2 citation statements)

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“…Therefore, there is a reduction of HR responsiveness as a counterpoint to acute changes of BP and a decrease of the baroreflex capacity in buffering changes in systemic BP (8). Besides, BRS has already been used as a predictor of adverse outcomes or progression of some conditions such as coronary surgery (11), Chagas disease (12), chronic kidney disease (13), hypertension (14), myocardial infarction (15,16), and heart failure (17).…”

Section: Introductionmentioning

confidence: 99%

Baroreflex sensitivity in frailty syndrome

Buto

Catai

Vassimon‐Barroso

et al. 2019

Braz J Med Biol Res

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Frailty is related to a decrease in the physiological reserves, which causes difficulties in maintaining homeostasis. An example of physiological mechanisms for cardiovascular homeostasis is the baroreflex. The aim of this study was to compare baroreflex among frail, prefrail, and nonfrail individuals, in supine and orthostatic positions. Community-dwelling older adults were evaluated and categorized into frail, prefrail, or nonfrail groups, according to frailty phenotype. The RR interval (RRi) and systolic blood pressure (SBP) series were recorded for 15 min in the supine and 15 min in the orthostatic positions. Mean and variance of RRi and SBP, and baroreflex evaluated by phase, gain (α), and coherence (K 2 ) were determined. A two-way repeated measures ANOVA, with Tukey's post hoc, was applied for group, position, and their interaction effects. The significance level established was 5%. Prefrail and frail participants did not present a significant decrease in mean values of RRi after postural challenge (893.43 to 834.20 ms and 925.99 to 857.98 ms, respectively). Frail participants showed a reduction in RRi variance in supine to orthostatic (852.04 to 232.37 ms 2 ). Prefrail and frail participants showed a decrease in K 2 after postural change (0.69 to 0.52 and 0.54 to 0.34, respectively). Frail participants exhibited lower values of K 2 (0.34) compared to nonfrail and prefrail participants (0.61 and 0.52, respectively). Baroreflex indicated the presence of decoupling between heart period and SBP in frail and prefrail. Thus, reduced K 2 might be a marker of the frailty process.

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Section: Introductionmentioning

confidence: 99%

Baroreflex sensitivity in frailty syndrome

Buto

Catai

Vassimon‐Barroso

et al. 2019

Braz J Med Biol Res

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“…Onchocercidae) in Phlebotomus duboscq 8 . The genus Onchocerca is common in South America, and in Brazil, the most prevalent species of this genus are O. gutturosa in cattle and O. cervicalis in horses 20,32 , both with veterinary importance. In the Amazon region, human onchocerciasis caused by O. volvulus was described in the 1960s 33 .…”

Section: Discussionmentioning

confidence: 99%

First report of an Onchocercidae worm infecting Psychodopygus carrerai carrerai sandfly, a putative vector of Leishmania braziliensis in the Amazon

Brilhante

Albuquerque

Rocha

et al. 2020

Sci Rep

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Sandflies are insects of public health interest due to their role as vectors of parasites of the genus Leishmania, as well as other pathogens. Psychodopygus carrerai carrerai is considered an important sylvatic vector of Leishmania (Viannia) braziliensis in Amazonia. In this study, sandflies were collected in a forested area in the Xapuri municipality, in the State of Acre (Northern Brazil). Two Ps. carrerai carrerai females were found parasitized with a larval form of a filarial worm, one in the labium of the proboscis, the other after the head was squashed, suggesting they were infective larvae. Sandflies were identified through morphological characters as well as amplification and sequencing of the cytochrome oxidase gene (COI). This was the first sequence obtained for Ps. carrerai carrerai for this marker. The obtained nematodes were also characterized through direct sequencing of a fragment of COI and 12S genes, both mitochondrial, and ITS1, a nuclear marker. Phylogenetic analyses revealed that the filarial nematodes belong to a species without sequences for these markers in the database, part of family Onchocercidade and closely related to genus Onchocerca (12S tree). Although sandfly infection with nematodes including members of the Onchocercidae has been reported in the Old World, this is the first report of sandfly infection by a member of the Onchocercidae family in the New World, to the best of our knowledge. Considering that the phylogenetic relationships and location in the insect, it can be expected that this is a parasite of mammals and the transmission cycle should be clarified.

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