113 resultados para HEMATOLOGIC MALIGNANCIES


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Pós-graduação em Medicina Veterinária - FCAV

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

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Micronuclei (MN) originate from chromosome fragments or whole chromosomes that lag behind at anaphase during cell division can occur due to excessive exposure to harmful agents, defects in mitosis and / or DNA repair process. The study evaluated the frequency of micronuclei in cytological samples after daily use of alcohol -based mouthwash mouth in smokers and non-smokers. We assessed 30 subjects, aged between 17-42 years and established as exclusion criteria: alcohol consumption; periodontal disease; systemic diseases that may interfere with the integrity of the oral mucosa; individuals with medical or pharmacological history that affect the performance of the study, family history of malignancies. For smokers the inclusion criterion was a minimum consumption of 20 cigarettes / day, and the contrast required for non-smokers. The sample was divided into 02 experimental groups: Group 1 Smokers and Group 2 Non-Smokers, both groups performed mouthwash (alcohol 21,6%) with Listerine® Defense of Teeth and Gums for 04 weeks cytological collection were performed on buccal mucosa and portion median border of the tongue, one for initial, week 0 control, and subsequent three weeks with continued use of mouthwash. The collected material was stained by specific staining Feulgen / Fast Green. The analysis of 3000 cells / individual was performed by light microscopy statistics used Kruskal- Wallis and Mann-Whitney tests for frequency MN. The frequency of micronuclei in buccal mucosa was 1.6 ± 1.75 and 1.46 ± 2.06 for the site language to Group 1 Smokers of showing a slight increase compared with Group 2 Non-smoking, which showed a variation of 1.2 ± 1.53 for the buccal mucosa site and 0.86 ± 1.41 for the site language. However, this difference was not statistically significant. The results suggest that alcohol-based mouthwash tested is not an inducer of genotoxic changes, thus not changing the frequency...

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

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Pós-graduação em Medicina Veterinária - FCAV

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Cisplatin (CPL) is one of the most widely used and effective chemotherapeutic agents for the treatment of several human malignancies. However, it causes serious side effects, especially on reproduction. In order to reduce the undesirable effects caused by many drugs, liposomes have been used as a good system for drug delivery. The aim of this study was to investigate, for the first time, the effects of CPL incorporated into the dipalmitoyl phosphatidylcholine liposome (DPPC) on the testicular tissue of adult Wistar rats. The animals (n = 20) were distributed into four experimental groups: (a) control (distillated water); (b) liposome (DPPC, 1 mL), (c) cisplatin incorporated into liposome (CPL/DPPC), and (d) CPL (8 mg/kg body weight). The animals received a single intraperitoneal injection and were killed 10 days after each treatment for histopathological analysis of testes. The results showed that the testicular histomorphometric parameters in rats of DPPC and CPL/DPPC groups were similar to those of the control group. Meanwhile, rats of the CPL-treated group showed a variety of morphological alterations, including atrophy of seminiferous tubules and presence of multinucleated cells in the germinal epithelium. The incorporation of CPL into the liposome had no influence on the testicular weight or any other stereological parameters, but it was beneficial in maintaining the body weight of the animals. In conclusion, the liposome suppressed the cytotoxic effects caused by cisplatin in the testes of rats, suggesting a possible use in chemotherapy against cancer to reduce the side effects seen on reproduction.

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

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Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

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Autologous hematopoietic stem cell transplantation is a conduct used to treat some hematologic diseases and to consolidate the treatment of others. In the field of nursing, the few published scientific studies on nursing care and early hospital discharge of transplant patients are deficient. Knowledge about the diseases treated using hematopoietic stem cell transplantation, providing guidance to patients and caregivers and patient monitoring are important nursing activities in this process. Guidance may contribute to long-term goals through patients' short-term needs. To analyze the results of early hospital discharge on the treatment of patients submitted to autologous transplantation and the influence of nursing care on this conduct. A retrospective, quantitative, descriptive and transversal study was conducted. The hospital records of 112 consecutive patients submitted to autologous transplantation in the period from January to December 2009 were revisited. Of these, 12 patients, who remained in hospital for more than ten days after transplantation, were excluded from the study. The medical records of 100 patients with a median age of 48.5 years (19-69 years) were analyzed. All patients were mobilized and hematopoietic stem cells were collected by leukapheresis. The most common conditioning regimes were BU12Mel100 and BEAM 400. Toxicity during conditioning was easily managed in the outpatient clinic. Gastrointestinal toxicity, mostly Grades I and II, was seen in 69% of the patients, 62% of patients had diarrhea, 61% of the patients had nausea and vomiting and 58% had Grade I and II mucositis. Ten patients required hospitalization due to the conditioning regimen. Febrile neutropenia was seen in 58% of patients. Two patients died before Day +60 due to infections, one with aplasia. The median times to granulocyte and platelet engraftment were 12 days and 15 days, respectively, with median red blood cell and platelet transfusions until discharge of three and four units, respectively. Twenty-three patients required rehospitalization before being discharged from the outpatient clinic. The median time to granulocyte engraftment was 12 days and during the aplasia phase few patients were hospitalized or suffered infections. The toxicity of the conditioning was the leading cause of rehospitalization. The nursing staff participated by providing guidance to patients and during the mobilization, transplant and outpatient follow-up phases, thus helping to successfully manage toxicity.

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Laryngeal squamous cell carcinoma (LSCC) is one of the most common malignancies of the head and neck tumors Zhang et al., 2013 [1]). Previous studies have associated its occurrence with social activities, such as tobacco and alcohol consumption (Hashibe et al., 2007a [2]; Hashibe et al., 2007b [3]; Shangina et al., 2006 [4]). Here, we performed a genome-wide gene expression profiling in thirty-one patients positively diagnosed for LSCC, in order to investigate new targets involved in tumorigenesis.

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Pós-graduação em Patologia - FMB

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Pós-graduação em Biopatologia Bucal - ICT

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The anisocytosis is a hematologic finding that is routinely evaluated from the mean corpuscular volume (MCV) and erythrocyte morphology in assessment of blood smears. The present study tested the hypothesis that the coefficient of variation of the red cell distribution width (RDW-CV - Red Cell Distribution Width) is a more sensitive parameter in the evaluation of hematologic anisocytosis, considering different levels of anemia in dogs and reticulocytosis. Blood counts of 102 anemic dogs and 353 control dogs made by automated hematology counter. The anemic animals were grouped according to the degree of anemia (mild, moderate and severe) and also as medullary response by manual reticulocyte count (none, weak, moderate and strong). The RDW-CV was different to the animal groups with moderate and severe anemia, which were higher, compared to the control group and mild anemia. The highest average value of RDW-CV (14.45%) occurred in patients with severe anemia. In the control group had higher MCV value that anemic animals , this may be due to a mixed population of erythrocytes in that group of animals. However, there wasn’t difference in MCV between different degrees of anemia and reticulocytosis. Therefore, the RDW is a more sensitive indicator anisocytosis than VCM and its value is directly proportional to the degree of anemia and reticulocytosis; when combined, the sensitivity for detection of anisocytosis in anemic dogs is greater. The use of reference values established by the clinical laboratory itself is mighty important.

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Hematological values from captive vampire bats Desmodus rotundus (E. Geoffroy, 1810). Desmodus rotundus is one of the hematophagous bat species that are responsible for significant losses to livestock and has important involvement on public health. The great interest on this bat species made it becomes the target of many investigations a required its maintenance in laboratories. Similarly to others mammals, hematological evaluation has been utilized to assess the health and morbidity state of bats, however there are scarce studies with captive bats. The aim of this study was to investigate the hypothesis that is possible to feed the vampire bat D. rotundus with frozen blood treated with citrate during a long captivity period without hematological dyscrasias. Therefore, complete blood count was performed monthly from 15 adult females kept for 345 days in cages and fed with frozen blood added to citrate. The erythrocyte concentration (9.02 ± 1.43 x1012/L), PCV (0.47 ± 0.08 L/L) and hemoglobin (163.9 ± 31.5 g/L) obtained from free-living bats (immediately after capture) were lower or similar to those obtained after 345 days of captivity, presenting erythrocytes’ count of 11.01 ± 0.82 x1012/L, packed cell volume of 0.50 ± 0.05 L/L and hemoglobin level of 158 ± 10.1 g/L. The total white blood cell (11.09 ± 6.07 x109 /L) and segmented neutrophil counts (9.85 ± 3.5 x109 /L) of free living D. rotundus decreased significantly after 345 days of captivity, with values of 3.98 ± 1.98 and 1.87 ± 978.6 x109 /L respectively, which are similar to bats from temperate regions in hibernation period. This study proved that is possible to feed D. rotundus for long periods of captivity with citrated blood without the occurrence of anemia, erythrocyte or other hematologic dyscrasia

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The increase of elderly population in Brazil and all around the world shows the need of reviewing the health cares in order to get a better quality of life. Objective: To evaluate lifestyle and health care of elderly participants of UNATI, Franca, SP. Methods: Sixty elderlies answered a questions about socio-economic issues, health care, food consumption habits and lifestyle, after, they were submitted to anthropometric and laboratory tests. Results: There was a prevalence of women (85%), aged between 60-69 years old (60%), up to high school (60%), retired (65%), income up to 5 minimum wage (73.4%). Most seniors assessed medical care (65%) were in use of long-term medicines (78.3%), they reported to control blood pressure (80%) and to not smoke (100%). About 71.7% people believed to have a healthy diet, 97% took meals at home, 85% chose and prepared their own food, 65% had 5-6 meals/day, 63% drank 1L of water/day, 90% had bowel function and 43.3% practices a regular physical activity. Only 13.3% have done hormone replacement therapy, 18.3% take dietary supplements and 21.7% drink alcoholic drinks. The participants presented a BMI of 27.49 ± 4.5kg/m², prevalence of overweight and eutrophy, which values decreased with age. Leg circumference (LC) (36.27 ± 3.84 cm), Arm circumference (AC) (31.39 ± 4.08 cm) and triceps skinfolds (TS) (20.58±7.54mm) values were suit in most cases (96.7, 85 and 83.3%, respectively). Serum total cholesterol values were 198.53 ± 35.2mg/dL, 55% were considered optimum. About 63.3% and 68.3% of the elderlies, respectively, presented a high density lipoproteins (HDL) (53.58± 10.9mg/dL) and triglycerides (TG) (143.97 ± 92.37mg/dL) according to the recommendation and 51.7% of the elderlies had normal glycemia, 38.3% had risk and 10% showed high blood glucose, indicating diabetes. Conclusion: Many elderlies had body mass index (BMI) above normal, indicating overweight or obesity, but the participants can be considered healthy because of AC, LC and TS values, diet habits, health care and lifestyle.