Pesque-solte: pesca repetitiva, variáveis hematológicas e parasitismo no peixe híbrido tambacu

The objective of this work was to evaluate the hematological and parasitological responses of tambacu (Colossoma macropomum x Piaractus mesopotamicus) subjected to catch-and-release stress and to different stocking densities in a catch-and-release system. Two hundred and ten fish with mean initial weight of 785.33±152.02 g and mean total length of 34.43±2.21 cm were maintained in ponds and divided into three groups: without fishing and low density (G1), with fishing and low density (G2), and with fishing and high density (G3). No significant differences were observed between the mean values for hemoglobin concentration, erythrocyte number, differential counting of leukocytes, and glucose. The fish from the G3 group showed higher parasite and thrombocyte numbers, and lower weight gain and hematocrit. The activity of catch-and-release, associated with high stocking density, can disrupt organic balance and animal performance, favoring parasitosis.

Adsorvente de micotoxinas em dietas de frangos de corte contendo aflatoxina e fumonisina

Pós-graduação em Ciência e Tecnologia Animal - FEIS

Plasma rico e plaquetas (PRP) aplicado na artroplastia total do joelho

Pós-graduação em Pesquisa e Desenvolvimento (Biotecnologia Médica) - FMB

Electrocardiographic evaluation and serum cardiac troponin I levels in anemic dogs with blood parasitosis

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Efeito do treinamento físico sobre o perfil metabólico e ósseo de ratos recém-desmamados

Introduction: The practice of moderate-intensity exercise can reduce the risk of infections and improve metabolic aspects of the person. Objective: To investigate the effects of aerobic physical training on endocrine and metabolic aspects, bone and immune system. Methods: Twenty Wistar rats were divided in two groups: sedentary (GS) and trained group (TG). Training program consisted in swimming, 6 weeks, supporting a workload corresponding to 5% of body weight. At the end of the experiment, were performed counting total and differential leukocyte count and hematocrit. After training period, were analyzed glucose, total protein, triglycerides, cholesterol, liver and muscle samples for the determination of the levels of glycogen, and determination of the tibia length and bone area. All dependent variables were analyzed by one-way analysis of variance (ANOVA) and a significance level of P < 0.05 was used for all comparisons. Results: Hematocrit (%) analyzed showed a significant difference, with higher values for TG (54.63 +/- 1.41) than for the GS (49.5 +/- 1.65). The total leukocyte count was not significantly different, as there was no difference in the differential count. Total cholesterol showed significant decrease in GT (GT = 68.27 +/- 13.71 mg/dL; GS = 94.44 +/- 28.09), the total protein levels also showed significant reduction (GT = 7.3 +/- 0,40 g/dL; GS = 7.74 +/- 0.36 g/dL) glucose levels and triglyceride showed no significant differences. The bone length showed a significant difference (GT = 40 +/- 0.14 mm; CG = 42.10 +/- 0.12mm). The tibial area showed the lowest value for the GT (1.53 +/- 0.12cm(2)) than for the GS (1.67 +/- 0.18cm(2)) however the difference was not statistically significant. Conclusion: It can be concluded that aerobic exercise training is able to produce some unique physiological changes in young rats. There is also the need to prescribe exercises that meet the particular maturational stage of development.

Deleterious effects of low level of vitamin E and high stocking density on the hematology response of pacus, during chronic inflammatory reaction

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Influência do estado nutricional e da composição corporal na evolução clínica dos pacientes com doença inflamatória intestinal

Pós-graduação em Fisiopatologia em Clínica Médica - FMB

Relação entre toxicidade urêmica, anemia e perda auditiva neurossensorial em indivíduos com doença renal crônica: um estudo prospectivo

Pós-graduação em Bases Gerais da Cirurgia - FMB

Effects of catecholamines on volemic replacement with saline solution and the impact on heart rate variability in rabbits subjected to hemorrhage. A study by spectral analysis

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Physiological Response to Dolops carvalhoi (Crustacea: Branchiura) Infection by Pacu, Piaractus mesopotamicus, Subjected to Short Cycles of Food Restriction and Refeeding

Feeding strategies that reduce feed and promote compensatory growth could be an interesting tool to reduce costs in the fish production. However, fish health must be monitored to evaluate if their physiological response to adverse conditions, such as parasite infection, does not become compromised. A 12-wk growth trial was conducted to determine the physiological responses of pacu, Piaractus mesopotamicus, that were subjected to different fasting/refeeding cycles and infected with the Dolops carvalhoi. The schemes were: (i) control group fish (FD), (ii) food-restricted and controlled refeeding group (FR/Rc), and (iii) food-restricted and refeeding to satiation group (FR/Rs). After 84 d, the fish were exposed to D. carvalhoi for 30 h. The fish subjected to food restriction did not exhibit compensatory growth. Cortisol levels decreased in all groups within 30 h after infection. Glucose levels increased 6 h after the D. carvalhoi in the FR/Rs and 30 h after infection in the FD. In all of the fish groups, the hematocrit values were reduced after infection, and it was associated with a reduction in the mean corpuscular volume and erythrocytes. At 30 h after infection, the number of erythroblasts increased. The use of the feeding schemes does not indicate a failure of the pacu physiological responses.

A Randomized Trial of the Topical Effect of Antifibrinolytic Epsilon Aminocaproic Acid on Coronary Artery Bypass Surgery Without Cardiopulmonary Bypass

We assessed the effect of the topical application of epsilon-aminocaproic antifibrinolytic acid (EACA) on the pericardium of patients submitted to coronary artery bypass graft (CABG) without the use of cardiopulmonary bypass (CPB). This is a prospective, randomized, and double-blind study. We evaluated 26 patients with chronic coronary heart disease indicated for CABG without CPB (EACA and placebo groups). The analysis of the postoperative hematological results showed no difference between groups in hemoglobin and hematocrit. There was no difference between the groups regarding the postoperative bleeding through the drains in the first 24 hours, 48 hours, and accumulated loss until removal of drains. The use of EACA in patients undergoing CABG without CPB presented no difference in the reduction of the amount of bleeding and the need for blood transfusions.

Parâmetros clínicos e laboratoriais relacionados ao prognóstico em cães com gastroenterite hospitalizados

Pós-graduação em Cirurgia Veterinária - FCAV

Efeitos da redução da concentração de sódio na solução de hemodiálise e no conteúdo de sódio da dieta sobre a resposta inflamatória de pacientes com doença renal crônica

Pós-graduação em Fisiopatologia em Clínica Médica - FMB

Eficácia da haptoglobina como marcador de hemólise no diagnóstico da síndrome HELLP

Introduction: The HELLP syndrome is a severe complication of pregnant women with preeclampsia (PE), characterized by association of hemolysis, changes in liver enzymes and thrombocytopenia. Hemolysis, defined by the presence of microangiopathic hemolytic anemia, is one of the characteristics in this syndrome. However, as hemolysis occurs in a short time there is some difficulty in its laboratory diagnosis. Therefore, the search for a more sensitive and specific method for hemolysis determination may help in the early diagnosis of the HELLP syndrome. Objectives: a) To determine the plasma concentration of haptoglobin in normotensive pregnant women and in pregnant women with PE, classified into mild PE, severe PE and HELLP/partial HELLP syndrome; b) To compare the efficacy of haptoglobin plasma concentration and serum total bilirubin as criteria for hemolysis diagnosis in HELLP/partial HELLP syndrome. Methods: We conducted a cross-sectional analytical and comparative study involving 66 pregnant women diagnosed with PE, being 25 cases with mild PE, 28 with severe PE, and 13 with HELLP/partial HELLP syndrome. Twenty-one normotensive pregnant women were included for comparison of haptoglobin plasma concentration between the groups and to determine the normal values for pregnant women. The variables studied were: maternal age, gestational age, systolic and diastolic blood pressure, proteinuria, hematocrit and hemoglobin values, platelet count, serum total bilirubin, lactate dehydrogenase (LDH), glutamic oxaloacetic transaminase (AST) and glutamic-pyruvic transaminase (ALT), urea, creatinine and uric acid, and also plasma concentrations of haptoglobin. The results were analyzed by nonparametric tests, with a significance level of 5%. Results: The values of urea, uric acid, AST, ALT and LDH were significantly higher, while the number of platelets was lower in pregnant women with HELLP/partial HELLP syndrome compared to pregnant women with mild PE and ...

Immunohistochemical evaluation of vascular endothelial growth factor (VEGF) in splenic hemangiomas and hemangiosarcomas in dogs

Formation of new blood vessels is paramount for tumour growth and metastatic dissemination and vascular endothelial growth factor (VEGF) is one of the key regulators of this process. The purpose of this study was to evaluate the immunohistochemical expression of VEGF in 23 splenic hemangiosarcomas and 7 splenic hemangiomas in dogs. Blood tests performed previous to splenectomy were analysed for correlation with tumour VEGF expression. Results showed significantly higher VEGF expression in hemangiosarcomas than hemangiomas and lower hematocrit values and red cell count in dogs affected with malignant neoplasia (P < 0.05). These findings suggest the presence of high VEGF levels may be related to the malignant vascular proliferation seen in hemangiosarcomas.