Hyptis crenata, commonly known as “salva-do-Marajó”, “hortelã-do-campo”, and “hortelãzinha”, is used in folk medicine in Northeast Brazil as tea or infusion to treat inflammatory diseases. Due to the pharmacological efficacy and the low toxicity of the essential oil of Hyptis crenata (EOHc), we decided to investigate the EOHc antiedematogenic effect in experimental models of inflammation. EOHc was administrated orally at doses of 10-300 mg/kg to male Swiss albino mice. Paw edema was induced by subcutaneous injection in the right hind paw of inflammatory stimuli (carrageenan, dextran, histamine, serotonin, and bradykinin) 60 min after administration of EOHc. EOHc significantly inhibited the induced edema. The inhibitory effect of EOHc on dextran-induced edema extended throughout the experimental time. For the 30, 100, and 300 mg/kg doses of EOHc, the inhibition was of 40.28±1.70, 51.18±2.69, and 59.24±2.13%, respectively. The EOHc inhibitory effect on carrageenan-induced edema started at 10 mg/kg at the second hour (h) and was maintained throughout the observation period. At 30, 100, and 300 mg/kg doses the inhibition started earlier, from 30 min. At the edema peak of 180 min, 56, 76, and 82% inhibition was observed for 30, 100, and 300 mg/kg doses, respectively. Additionally, the effect of EOHc on carrageenan-induced paw edema was influenced by the time of administration. The EOHc also inhibited myeloperoxidase activity. In conclusion, the EOHc showed a potent effect, both preventing and reversing the edema, consistent with its anti-inflammatory use in folk medicine.

RESUMO: Alterações laboratoriais de origem paraneoplásica são identificadas em diversos tipos de câncer de cães e gatos. Na medicina veterinária, existem poucos estudos que correlacionam os achados laboratoriais anormais com o tipo e estadiamento tumorais, principalmente em cadelas com neoplasia mamária. O objetivo deste estudo foi avaliar as alterações hematológicas, bioquímicas e hemostáticas em cadelas com neoplasia mamária e relacioná-las com o estadiamento tumoral. Foram coletadas amostras de sangue de 24 fêmeas caninas, e os parâmetros hematológicos, bioquímicos e hemostáticos obtidos foram relacionados com o estadiamento tumoral, realizado através do exame físico, exames de imagem e avaliação histopatológica após remoção cirúrgica. Os grupos foram organizados de acordo com o estadiamento tumoral em: Grupo 1 (estádios I e II), grupo 2 (estádio III) e grupo 3 (estádios IV e V). Observou-se anemia, leucocitose neutrofílica, monocitose, eosinofilia, trombocitose, hipoalbuminemia, hipocalcemia, hipoglicemia e diminuição de ureia sanguínea. As variáveis CHCM, PPT e RDW foram relacionadas com o estadiamento tumoral, porém sem relevância clínica. Nos testes de coagulação, o TT e o fibrinogênio apresentaram diferença significativa entre os grupos, sendo associado com estadiamento tumoral. Os resultados sugerem influência das citocinas pró-inflamatórias liberadas durante o crescimento do tumor.

ABSTRACT: Paraneoplastic laboratory abnormalities are identified in several types of cancers in dogs and cats. In veterinary medicine, particularly in mammary cancer, there are few studies that correlate abnormal laboratory findings with tumor type and staging. The aim of this study was to evaluate hematological, biochemical, and hemostatic abnormalities and correlate them with mammary tumor staging in female dogs with mammary cancer. Blood samples from 24 female dogs were evaluated, and the hematological, biochemical, and hemostatic parameters were correlated with tumor staging obtained by physical examination, imaging exams, and histopathological surgical biopsies. The groups were organized according to tumor staging: group 1 (stages I and II), group 2 (stage III), and group 3 (stages IV and V). Anemia, neutrophilic leukocytosis, monocytosis, eosinophilia, thrombocytosis, hypoalbuminemia, hypocalcemia, hypoglycemia, and low blood urea were observed. The variables MCHC, TPP, and RDW were correlated with tumor staging with no clinical relevance. Thrombin time and fibrinogen were significant between the groups in the coagulation test, being associated with tumor staging. The findings suggest influence of the proinflammatory cytokines released during tumor growth.

ABSTRACT Effects of treatment with the bark flour of Passiflora edulis Sims, Passifloraceae, were evaluated. Adult male Wistar rats were treated for 30 days (130 mg/kg, p.o.) with the albedo flour, flavedo and full bark of P. edulis, corresponding to albedo associated with flavedo. Behavioral response observed after treatment with bark flour P. edulis showed sedative effects by the reduction of exploratory activity and increased duration of immobility in the open field test for the group of animals that received the albedo flour associated with the flavedo. Sedative effects were observed in the absence of motor incoordination or muscle relaxation. Food intake of experimental animals was not changed, but the weight gain was decreased both in animals that received only albedo flour, and in those who received the full bark flour. The full bark flour of Passiflora showed sedative effects, without anxiolytic effect detectable and muscle relaxation or motor incoordination, and reduces body weight gain.

O presente trabalho objetivou a caracterização ultrassonográfica das regiões abdominal e pélvica de cinco lobos-guarás mantidos em cativeiro no Centro de Triagem de Animais Silvestres da Universidade Federal de Viçosa, com descrição dos aspectos ultrassonográficos e obtenção de medidas de suas diversas estruturas, por meio de ultrassonografia modo-B. Coletaram-se dados de biometria corporal com a finalidade de se verificar a existência de correlação linear significativa entre estas medidas e as mensurações obtidas ultrassonograficamente. Adicionalmente, efetuou-se avaliação hematológica e bioquímica sérica dos animais. Os achados ultrassonográficos foram equiparados aos existentes na literatura de cães domésticos devido à inexistência de dados publicados referentes a lobos-guarás. Esta espécie apresentou características muito semelhantes às do cão, diferindo nas ecogenicidades do baço e córtex renal esquerdo, no aspecto da região prostática, testicular e na morfologia da veia porta hepática. No presente estudo, os valores de biometria corporal foram semelhantes aos anteriormente publicados, porém não se encontraram dados na literatura referentes a perímetro torácico, comprimento vértice-caudal modificado e profundidade torácica para esta espécie de canídeo. A análise estatística revelou a existência de forte correlação negativa entre o comprimento vértice caudal modificado e o comprimento renal esquerdo, entre o comprimento vértice caudal modificado e o volume renal direito, entre o perímetro torácico e a altura do polo cranial da glândula adrenal esquerda e entre o perímetro torácico e a altura do polo caudal da glândula adrenal esquerda. Laboratorialmente, a contagem de neutrófilos segmentados, eosinófilos, monócitos e linfócitos e os níveis séricos de glicose, ALT, fosfatase alcalina, ureia, proteína total, globulina, creatina fosfoquinase, triglicérides, sódio, fosfato, potássio e cloreto foram discordantes de valores obtidos por outros autores. A ultrassonografia é um método de diagnóstico por imagem que necessita ser mais explorado na medicina de animais silvestres, sendo, portanto necessário o incremento de pesquisas nesta área.

The aim of the present study was the ultrasound characterization of the abdominal and pelvic regions of five maned wolves kept in captivity at the Triage Center of Wild Animals of the Federal University of Viçosa (Centro de Triagem de Animais Silvestres, Universidade Federal de Viçosa). This characterization included descriptions of ultrasonographic aspects and measurements of various structures using B-mode ultrasound. Biometric data were collected to assess the existence of significant linear correlations between these measurements and the measurements obtained by ultrasound. Additionally, hematological and serum biochemistry evaluations of the animals were performed. The ultrasound findings were similar to those available in the literature on domestic dogs, which were used for comparison as a result of the lack of published data regarding maned wolves. The latter species showed characteristics closely resembling those of the former, differing in the spleen and left renal cortex echogenicities, in the appearance of the prostatic and testicular regions and in the hepatic portal vein morphology. In the current study, the biometric values were similar to those previously published; however, no data regarding thoracic perimeter, modified crown-rump length or thoracic depth were found in the literature for this Canidae species. Statistical analysis showed the existence of a strong negative correlation between the modified crown-rump length and left renal length, between the modified crown-rump length and the right renal volume, between the thoracic perimeter and the height at the cranial pole of the left adrenal gland and between the thoracic perimeter and the height at the caudal pole of the left adrenal gland. Laboratory findings, including segmented neutrophil, eosinophil, monocyte and lymphocyte counts and the serum levels of glucose, ALT, alkaline phosphatase, urea, total protein, globulin, creatine phosphokinase, triglyceride, sodium, phosphate, potassium and chloride, were inconsistent with values found by other authors. The ultrasound is a diagnostic imaging method that must be further explored in the medicine of wild animals; therefore, additional research in this area is required.

O objetivo deste trabalho foi avaliar o efeito de diferentes herbicidas/misturas no controle de três espécies de trapoeraba (Commelina benghalensis, C. erecta e Tripogandra diuretica) e a tolerância de plantas jovens de café aos herbicidas. O delineamento experimental foi inteiramente casualizado, com quatro repetições. Os tratamentos foram constituídos por dez diferentes herbicidas/misturas e uma testemunha, associados a três espécies de trapoeraba. As avaliações foram realizadas aos 21 e 50 dias após a aplicação (DAP) dos herbicidas, por meio de análise visual, seguindo-se escala de nível de controle. Avaliou-se a tolerância das mudas de café aos herbicidas (escala de avaliação visual da fitotoxicidade) e as características de crescimento (diâmetro, número de folhas e estatura) das mudas de café. A espécie C. benghalensis foi melhor controlada quando se utilizaram os herbicidas: diuron, 2,4-D + picloram, atrazine + metolachlor, metribuzin, glyphosate WG e acetochlor. A espécie C. erecta foi controlada pelos herbicidas diuron, 2,4-D + picloram, atrazine + metolachlor, glyphosate CS e acetochlor. Os herbicidas diuron, 2,4-D + picloram, atrazine + metolachlor, metribuzin, glyphosate WG e paraquat + diuron foram os que melhor controlaram T. diuretica. Metribuzin, diuron e acetochlor mostraram-se mais fitotóxicos para a cultura do café. O diuron reduziu a massa da matéria seca e o número de folhas do cafeeiro. O diâmetro do caule e a estatura foram afetados pelos herbicidas metribuzin e 2,4-D. O metribuzin foi o herbicida que maior prejuízo causou às características de crescimento da planta de café.

This work aimed to evaluate the effect of different herbicides/mixtures on the control of three dayflower species (Commelina benghalensis, C. erecta. and Tripogandra diuretica) and the tolerance of young coffee plants to the herbicides. The trial was arranged in a completely randomized design, constituted by ten different herbicides/mixtures and three dayflower species. Evaluations were carried out at 21 and 50 days after herbicide application (DAP), using visual analysis, following a control level scale. Coffee seedling tolerance to the herbicides (visual scale evaluation of phytotoxicity) and growth characteristics (diameter, number of leaves and height) of the coffee seedlings were evaluated. C. benghalensis was better controlled by diuron, 24-D + picloram, atrazine + metolachlor, metribuzin, glyphosate WG and acetochlor. C. erecta was controlled by diuron, 2,4-D + picloram, atrazine metolachlor, glyphosate SC and acetochlor. Diuron, 2,4-D + picloram, atrazine + metolachlor, metribuzin, glyphosate WG and paraquat diuron controlled T. diuretica the best. Metribuzin, diuron and acetochlor were more phytotoxic to the coffee crop. Diuron reduced dry matter weight and number of leaves of the coffee plant. Stem diameter and height were affected by the herbicides metribuzin and 2,4-D. Metribuzin caused the most damage to the growth characteristics of the coffee seedlings.

Descreve-se um caso de crise aplástica devida ao parvovírus B19 num paciente adulto, manifestando-se por palidez, cansaço, lipotímias e dispnéia. A ausência de reticulócitos chamou a atenção para o diagnóstico. Detectaram-se IgM e IgG anti-B19. Reticulocitopenia em pacientes com anemia hemolítica hereditária sugere infecção por B19.

We describe a case of aplastic crisis caused by parvovirus B19 in an adult sickle-cell patient presenting with paleness, tiredness, fainting and dyspnea. The absence of reticulocytes lead to the diagnosis. Anti-B19 IgM and IgG were detected. Reticulocytopenia in patients with hereditary hemolytic anemia suggests B19 infection.

O feocromocitoma que ocorre na síndrome de Neoplasia endócrina múltipla tipo 2A (NEM-2A), também conhecida como síndrome de Sipple, é muitas vezes bilateral e multicêntrico. O uso da cintilografia com meta-iodobenzilguanidina (M-IBG) é um método seguro e eficaz para o diagnóstico de localização do feocromocitoma, particularmente nos casos de sítio extra-adrenal, recorrência pós-operatória ou doença metastática maligna. Apresentamos o caso de uma paciente feminina de 26 anos com NEM-2A e feocromocitoma adrenal bilateral (visualizado na Ressonância Nuclear Magnética e confirmado pelo exame histopatológico), cuja cintilografia com I131 M-IBG revelou marcada diferença de captação entre as adrenais (mínima à direita e mais intensa à esquerda). Relevante no caso, foi o fato do tumor à direita ser muito maior (5,5 cm de diâmetro) do que à esquerda (3,0 cm de diâmetro), funcionalmente iguais (caracterizado por complicações pré-operatórias quando da manipulação cirúrgica) e histopatologicamente similares. Concluímos que nos casos de NEM-2A, a captação negativa ou discreta de M-IBG não exclui a necessidade de exploração cirúrgica bilateral das adrenais.

The pheocromocytoma that occurs in Multiple endocrine neoplasia type 2A (MEN-2A), also known as Sipple's syndrome, is often bilateral and multicentric. The use of Meta-iodobenzylguanidine (M-IBG) scintigraphy is a safe and efficacious techinique for the location of suspected pheocromocytoma, especially for the cases of nonadrenal sites, recurrence postoperative and malignant metastatic disease. We present the case of a 26-years-old female patient with MEN-2A and bilateral adrenal pheocromocytoma (visualized by Magnetic Nuclear Ressonance and confirmed by histopatological exam), whose MIBG scintigraphy showed marked differentiated uptake of the adrenals (minimal on the right and more intense on the left). Relevant is the fact that the right tumor is much larger (5.5 cm of diameter) than the left (3.0 cm), functionally equal and with similar histology. We concluded that in the cases of MEN-2A, a minimal or negative M-IBG uptake does not exclude the need of bilateral surgical exploration of the adrenals.