Morfologia e reprodução de Mesophyllum erubescens (Foslie) Me. Lemoine (Corallinales, Rhodophyta) do Sul do Brasil

The genus Mesophyllum Me. Lemoine includes around 147 species, of which only three have been referred to the Brazilian coast. Mesophyllum erubescens was originally described from Fernando de Noronha Archipelago, Brazil (type locality). Here we present the first detailed description of M. erubescens based on Brazilian material. Samplings were made through scuba diving at the Biological Marine Reserve of Arvoredo Island, Santa Catarina. The relations of M. erubescens with other similar species, especially from the American Atlantic studied by W.R. Taylor are discussed.O gênero Mesophyllum Me. Lemoine compreende cerca de 147 espécies, das quais apenas três são referidas para a costa brasileira. Mesophyllum erubescens foi originalmente descrita para o Arquipélago de Fernando de Noronha, Brasil (localidade tipo). Neste trabalho é apresentada a primeira descrição detalhada de M. erubescens baseada em material brasileiro. As amostragens foram realizadas através de mergulho autônomo na Reserva Biológica Marinha do Arvoredo, Santa Catarina. As relações de M. erubescens com outras espécies semelhantes são discutidas, sendo especialmente consideradas espécies do Atlântico Americano estudadas por W.R. Taylor

The Fractional Schrödinger Equation For Delta Potentials

The fractional Schrödinger equation is solved for the delta potential and the double delta potential for all energies. The solutions are given in terms of Fox's H-function. © 2010 American Institute of Physics.5112Rangarajan, G., Ding, M., (2000) Phys. Lett. A, 273, p. 322. , 10.1016/S0375-9601(00)00518-1Mainardi, F., (1996) Appl. Math. Lett., 9, p. 23. , 10.1016/0893-9659(96)00089-4Duan, J.S., (2005) J. Math. Phys., 46, p. 013504. , 10.1063/1.1819524Figueiredo Camargo, R., Capelas de Oliveira, E., Vaz, J., (2009) J. Math. Phys., 50, p. 123518. , 10.1063/1.3269587Laskin, N., (2000) Phys. Lett. A, 268, p. 298. , 10.1016/S0375-9601(00)00201-2Laskin, N., (2000) Phys. Rev. E, 62, p. 3135. , 10.1103/PhysRevE.62.3135(1995) Lévy Flights and Related Topics in Physics, 450. , M.F.Shlesinger, G.M.Zaslavsky, U.Frisch, edited by and, Lecture Notes in Physics, (Springer, New York)Guo, X., Xu, M., (2006) J. Math. Phys., 47, p. 082104. , 10.1063/1.2235026Laskin, N., (2000) Chaos, 10, p. 780. , 10.1063/1.1050284Naber, M., (2004) J. Math. Phys., 45, p. 3339. , 10.1063/1.1769611Jeng, M., Xu, S.-L.-Y., Hawkins, E., Schwarz, J.M., (2010) J. Math. Phys., 51, p. 062102. , 10.1063/1.3430552Dong, J., Xu, M., (2007) J. Math. Phys., 48, p. 072105. , 10.1063/1.2749172Butzer, P.L., Westphal, U., (2000) Applications of Fractional Calculus in Physics, pp. 1-85. , R.Hilfer, and, "An introduction to fractional calculus," in, edited by (World Scientific, Singapore)Riesz, M., (1948) Acta Math., 81, p. 1. , 10.1007/BF02395016Gradshteyn, I.S., Ryzhik, I.M., (2007) Table of Integrals, Series, and Products, , 7th ed. (Academic Press, NY)Gasiorowicz, S., (2003) Quantum Physics, , 3rd ed. (Wiley, NY)Scott, T.C., Babb, J.F., Dalmano, A., Morgan, J.D., (1993) J. Chem. Phys., 99, p. 2841. , 10.1063/1.465193Mathai, A.M., Saxena, R.K., Haubold, H.J., (2009) The H-Function, , (Springer, NY)Braaksma, B.L.J., (1962) Compos. Math., 15, p. 239. , 2013, 1964Kilbas, A.A., Srivastava, H.M., Trujillo, J.J., (2006) Theory and Applications of Fractional Differential Equations, , (Elsevier, Amsterdam)Oberhettinger, F., (1974) Tables of Mellin Transforms, , (Springer-Verlag, Berlin)Churchill, R.V., (1960) Complex Variables and Applications, , (McGraw-Hill, NY)Podlubny, I., (1998) Fractional Differential Equations, , (Academic Press, San Diego

Effect of surgical treatment on the cellular immune response of gastric cancer patients

Patients with gastric cancer have a variety of immunological abnormalities. In the present study the lymphocytes and their subsets were determined in the peripheral blood of patients with gastric cancer (N = 41) both before and after surgical treatment. The percent of helper/inducer CD4 T cells (43.6 ± 8.9) was not different after tumor resection (43.6 ± 8.2). The percent of the cytotoxic CD8+ T cell population decreased significantly, whether patients were treated surgically (27.2 ± 5.8%, N = 20) or not (27.3 ± 7.3%, N = 20) compared to individuals with inflammatory disease (30.9 ± 7.5%) or to healthy individuals (33.2 ± 7.6%). The CD4/CD8 ratio consequently increased in the group of cancer patients. The peripheral blood lymphocytes of gastric cancer patients showed reduced responsiveness to mitogens. The defective blastogenic response of the lymphocytes was not associated with the production of transforming growth factor beta (TGF-ß) since the patients with cancer had reduced production of TGF-ß1 (269 ± 239 pg/ml, N = 20) in comparison to the normal individuals (884 ± 175 pg/ml, N = 20). These results indicate that the immune response of gastric cancer patients was not significantly modified by surgical treatment when evaluated four weeks after surgery and that the immunosuppression observed was not due to an increase in TGF-ß1 production by peripheral leukocytes.33934

Labyrinthine fístulae in chronic otitis media with cholesteatoma

The chronic otitis media with cholesteatoma (COMC) may evoluate to intracranial and extra cranial complications, including the labyrithine fístulae. In this study, we present the evolution of our patients with labyrinthine fístulae. STUDY DESIGN: Clinical prospective. MATERIAL AND METHOD: Ten out 82 patients with COMC had labyrinthine fístulae and underwent surgery from January/2001 to April/2002. They were assessed by clinical exam, computed tomography scans, and pre and postoperative audiogram. RESULTS: Hearing loss, otorrhea, tinnitus and dizziness were present in 100%, 90%,80%, and 40% of the cases. In one patient the fístulae was seen only in the coronal CT-scan, in another patient the fístulae was not seen neither in coronal nor axial images. Among the patients who had tinnitus, 66% referred improvement of this complaint after surgery. DISCUSSION: in the cases without invasion of the perilymphatic space, we noticed a tendency of improvement of the postoperative audiogram pattern and clinical outcome. In the extensive fístulae, on the other hand, there were no clinical changes. CONCLUSION: The CT-scan remains the best exam to assess the COMC with 90% of sensitivity for labyrinthine fístulae. In the stage II we had a good postoperative outcome.A otite média crônica colesteatomatosa (OMCC) pode cursar com complicações intra e/ou extracranianas, entre elas a fístula labiríntica. Neste trabalho, mostramos a incidência e a evolução dos casos de fístula labiríntica decorrentes da OMCC em nosso serviço. FORMA DE ESTUDO: Clínico prospectivo. MATERIAL E MÉTODO: Dez pacientes com fístula labiríntica, do total de 82 pacientes com OMCC, foram submetidos à cirurgia no período de janeiro de 2001 a abril de 2002 e avaliados através de exame otorrinolaringológico completo, tomografia computadorizada e audiometria pré e pós-operatória. RESULTADOS: Perda auditiva, otorréia, zumbido e vertigem estavam presentes em 100%, 90%, 80% e 40% dos casos respectivamente na avaliação clínica pré-operatória. Em um paciente a fístula aparecia apenas nos cortes tomográficos coronais e tivemos um caso de falso-negativo. Dos pacientes com zumbido, 66% apresentaram melhora deste quadro no pós-operatório. DISCUSSÃO: Nos casos de fístula sem invasão do espaço perilinfático (até grau II), notamos uma tendência de melhora dos quadros clínico e audiométrico após a cirurgia. Nas fístulas extensas, por outro lado, o resultado audiométrico se manteve inalterado. CONCLUSÃO: A tomografia continua sendo o exame de escolha para os quadros de OMCC com sensibilidade de 90% para fístulas labirínticas. Nas fístulas grau II a cirurgia apresenta bom resultado funcional.Universidade Federal de São Paulo (UNIFESP) Escola Paulista de Medicina Departamento de Otorrinolaringologia e Distúrbios da Comunicação HumanaUNIFESP, EPM, Depto. de Otorrinolaringologia e Distúrbios da Comunicação HumanaSciEL

Opposite lipemic response of Wistar rats and C57BL/6 mice to dietary glucose or fructose supplementation

The metabolic effects of carbohydrate supplementation in mice have not been extensively studied. In rats, glucose- and fructose-rich diets induce hypertriacylglycerolemia. In the present study, we compared the metabolic responses to two monosaccharide supplementations in two murine models. Adult male Wistar rats (N = 80) and C57BL/6 mice (N = 60), after 3 weeks on a standardized diet, were submitted to dietary supplementation by gavage with glucose (G) or fructose (F) solutions (500 g/L), 8 g/kg body weight for 21 days. Glycemia was significantly higher in rats after fructose treatment (F: 7.9 vs 9.3 mM) and in mice (G: 6.5 vs 10 and F: 6.6 vs 8.9 mM) after both carbohydrate treatments. Triacylglycerolemia increased significantly 1.5 times in rats after G or F supplementation. Total cholesterol did not change with G treatment in rats, but did decrease after F supplementation (1.5 vs 1.4 mM, P < 0.05). Both supplementations in rats induced insulin resistance, as suggested by the higher Homeostasis Model Assessment Index. In contrast, mice showed significant decreases in triacylglycerol (G: 1.8 vs 1.4 and F: 1.9 vs 1.4 mM, P < 0.01) and total cholesterol levels (G and F: 2.7 vs 2.5 mM, P < 0.05) after both monosaccharide supplementations. Wistar rats and C57BL/6 mice, although belonging to the same family (Muridae), presented opposite responses to glucose and fructose supplementation regarding serum triacylglycerol, free fatty acids, and insulin levels after monosaccharide treatment. Thus, while Wistar rats developed features of plurimetabolic syndrome, C57BL/6 mice presented changes in serum biochemical profile considered to be healthier for the cardiovascular system.32333

Effects of dietary curcumin in growth performance, oxidative status and gut morphometry and function of gilthead seabream postlarvae

An imbalance in the production and detoxification of reactive oxygen species and other oxidants can disrupt a l l types of cellular compounds, and lead to a state of oxidative stress. Preventing this state is essential to improve growth and health in animal production. Therefore, the aim of this work was to assess i f the dieta r y supple-mentation of curcumin cou l d improve the antioxidant status and intestine structu r e and functionalit y of gilthead seabream postlarvae, with the global objective of improving fish growth performance and robustness. Two experimental diets supplemented with different doses of curcumin (LOW and HIGH diets), and a commercial diet were fed to quadruplicate groups of postlarvae, for 20 days. At the end of the feeding trial fish fed the supple-mented diets significantly improved their antioxidant status compared to CTRL fed fish. LOW and HIGH fed fish presented lower protein oxidative damage (P 0.05). In conclusion, dieta r y curcumin supplementation was able to enhance gilthead seabream postlarvae robustness through a modulation of the oxidative status, increasing total antioxidant capacity and decreasing protein oxidative damage. This data pro-vide evidence that curcumin can be a suitable feed additive to promote heath status and robustness of fish at early stages of development, therefore contributing for the development and sustainabilit y of marine fish hatchery production.info:eu-repo/semantics/publishedVersio