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Search Results: 1 - 10 of 403920 matches for " Tatiana M Kanashiro "
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Growth and development of the placenta in the capybara (Hydrochaeris hydrochaeris)
Claudia Kanashiro, Tatiana C Santos, Maria Miglino, Andrea M Mess, Anthony M Carter
Reproductive Biology and Endocrinology , 2009, DOI: 10.1186/1477-7827-7-57
Abstract: Material was collected from six animals at pregnancy stages ranging from the late limb bud stage to mid gestation. Methods included latex casts, standard histology, immunohistochemistry for cytokeratin, vimentin, alpha-smooth muscle actin, and proliferating cell nuclear antigen as well as transmission electron microscopy.At the limb bud stage, the placenta was a pad of trophoblast covered by a layer of mesoderm from which fetal vessels were beginning to penetrate at folds in the surface. By 70 days, the placenta comprised areas of labyrinth (lobes) separated by interlobular areas. Placental growth resulted predominantly from proliferation of cellular trophoblast situated in nests at the fetal side of the placenta and along internally directed projections on fetal mesenchyme. Additional proliferation was demonstrated for cellular trophoblast within the labyrinth.Already at the limb bud stage, there was a prominent subplacenta comprising cellular and syncytial trophoblast with mesenchyme and associated blood vessels. At 90 days, differentiation was complete and similar to that seen in other hystricognath rodents. Overlap of fetal vessels and maternal blood lacunae was confirmed by latex injection of the vessels. At all stages extraplacental trophoblast was associated with the maternal arterial supply and consisted of cellular trophoblast and syncytial streamers derived from the subplacenta.All important characteristics of placental development and organization in the capybara resembled those found in smaller hystricognath rodents including the guinea pig. These features apparently do not dependent on body size. Clearly, placentation in hystricognaths adheres to an extraordinarily stable pattern suggesting they can be used interchangeably as models of human placenta.Rodents are useful models for human reproduction due to the ready availability of laboratory animals [1] and their closeness to the primate lineage [2-4]. Although four suborders are recognized, most specie
Identification of respiratory virus in infants with congenital heart disease by comparison of different methods
Kanashiro, Tatiana Mitiko;Vilas Boas, Lucy Santos;Thomaz, Ana Maria;Tozetto-Mendoza, Tania Regina;Setsuko, M?nica;Machado, Clarisse Martins;
Revista do Instituto de Medicina Tropical de S?o Paulo , 2011, DOI: 10.1590/S0036-46652011000500001
Abstract: respiratory virus infections are the main cause of infant hospitalization and are potentially severe in children with congenital heart disease (chd). rapid and sensitive diagnosis is very important to early introduction of antiviral treatment and implementation of precautions to control transmission, reducing the risk of nosocomial infections. in the present study we compare different techniques in the diagnosis of respiratory viruses in chd infants. thirty-nine samples of nasopharyngeal aspirate were obtained from chd infants with symptoms of respiratory infection. the multiplex pcr (seeplex? rv 12 ace detection) driven to the detection of 12 respiratory viruses was compared with the direct immunofluorescence assay (dfa) and pcr, both targeting seven respiratory viruses. the positivity found by dfa, multiplex and pcr was 33.3%, 51.3% and 48.7%, respectively. kappa index comparing dfa and multiplex, dfa and pcr and pcr and multiplex pcr was 0.542, 0.483 and 0.539, respectively. the concordance between techniques was considered moderate. both multiplex pcr (p = 0.001) and pcr (p = 0.002) detected significantly more respiratory virus than dfa. as the performance of the tests may vary, the combination of two or more techniques may increase diagnostic sensitivity favoring the diagnosis of co-infections, early introduction of antiviral therapy and implementation of appropriate measures.
Newspaper space for science (Portuguese original version)
Marta M. Kanashiro
JCOM : Journal of Science Communication , 2006,
Abstract: In recent years, courses, events and incentive programs for scientific journalism and the divulgation of science have proliferated in Brazil. Part of this context is “Sunday is science day, history of a supplement from the post-war years”, a book published this year that is based on the Master’s degree research of Bernardo Esteves, a journalist specialized in science.
Newspaper space for science
Marta M. Kanashiro
JCOM : Journal of Science Communication , 2006,
Abstract: In recent years, courses, events and incentive programs for scientific journalism and the divulgation of science have proliferated in Brazil. Part of this context is “Sunday is science day, history of a supplement from the post-war years”, a book published this year that is based on the Master’s degree research of Bernardo Esteves, a journalist specialized in science.
Detection of porcine circovirus genotypes 2a and 2b in aborted foetuses from infected swine herds in the State of S?o Paulo, Brazil
Alessnadra M.M.G. Castro, Taís F Cruz, Vanessa R Salgado, Tatiana M Kanashiro, Karen L Ferrari, Jo?o P Araujo, Paulo E Brand?o, Leonardo J Richtzenhain
Acta Veterinaria Scandinavica , 2012, DOI: 10.1186/1751-0147-54-29
Abstract: Samples of 168 aborted foetuses or mummified foetuses from five farrow-to-finish swine farms known to be infected with PCV2 and located in the State of S?o Paulo were tested for PCV2 by polymerase chain reaction (PCR). Positive samples were additionally tested for porcine parvovirus (PPV), Leptospira spp. and Brucella spp. by PCR. PCV2 was detected in 18 of the samples (10.7%). PPV, Brucella spp. and Leptospira spp were found in 2, 10 and 0 cases, respectively. Eleven PCV2 strains were sequenced and determined to be either genotype 2a (n?=?1) or 2b (n?=?10).The findings indicate that the frequency of PCV2 infections in aborted porcine foetuses from the State of S?o Paulo is rather low (10.7%) and that co-infection with other pathogens is common and may be involved in PCV2 associated reproductive failure. No repeatable, characteristic amino acid motifs for regions of the PCV2 capsid protein seemed to be associated with abortion in sows.
Science, Communication and Society in Brazil, the narrative of deficit
Kanashiro Marta M.,Evangelista Rafael
JCOM : Journal of Science Communication , 2004,
Abstract:
Estudo da adapta??o e aplicabilidade do questionário perfil de atividades de Adelaide em idosos de uma comunidade Nipo-Brasileira
Kanashiro, Miriam Masako;Yassuda, M?nica Sanches;
Psicologia: Reflex?o e Crítica , 2011, DOI: 10.1590/S0102-79722011000200005
Abstract: active aging is associated with well-being and quality of life. the aim of this cross-sectional study was to adapt and analyze the applicability of the adelaide activities profile (aap) in brazil, and characterize the frequency and type of activities carried out by older adults who belong to the japanese community. the questionnaire was translated and adapted to brazilian portuguese. the sample was composed by two groups: 30 mahjong players and 30 gateball players, men and women. women were more active in domestic chores, service to others, and intellectual leisure; men were more active in social activities. the aap may be useful to analyze the activity profile of older adults and guide the indication of gerontological interventions.
A redu o do ventrículo esquerdo n o apenas diminui a pós-carga
Tucci Paulo J. F.,Kanashiro Rosemeire M.
Arquivos Brasileiros de Cardiologia , 2004,
Abstract:
Valida??o de questionário para diagnóstico de cefaléia em ambulatório de hospital universitário
Bense?or, Isabela J. M.;Lotufo, Paulo A.;Pereira, Alexandre C.;Tannuri, Anna Cristina A.;Issa, Flávia K. K.;Akashi, Daniela;Fucciolo, Daniele Q.;Kakuda, Everton Y. S.;Kanashiro, Hideki;Lobato, Maurício L.;Titan, Sílvia M. O.;Galv?o, Tatiana F. G.;Martins, Milton de Arruda;
Arquivos de Neuro-Psiquiatria , 1997, DOI: 10.1590/S0004-282X1997000300003
Abstract: headache is a common complaint with a high prevalence in ambulatory settings. the physical and neurological examinations are frequently normal. the use of questionnaires as a screening method for patients with primary headache could facilitate the diagnosis in non specialized medical centers. in the present study, we used a questionnaire , based on the ihs criteria and modified by the authors, applied to 204 patients from the outpatient clinic of the hospital das clínicas da faculdade de medicina da universidade de s?o paulo. half of the patients were submitted to a clinical interview. we compared the results of the questionnaire with the results of the medical interview (gold standard). most of the headaches we studied were primary headaches (89.6%). the questionnaire revealed a sensitivity of 90.2% and specificity of 57.9% for migraine detection with a chance corrected agreement {kappa) of 0.47 and a positive predictive (ppv) value of 65.7% and a negative predictive value (npv) de 86.8%. the sensitivity for tension-type headache detection was 60.8% and the specificity 87.1 % with a kappa value of 0.49 and a ppv of 77.8% and a npv of 75.9%. we conclude that this questionnaire can be used as a screening method for diagnosing headache and that it can be applied by non-medical personnel. this questionnaire could also be used for population studies.
?Cómo alimentar a los ni?os? La práctica de conductas alimentarias saludables desde la infancia
Black,Maureen M; Creed-Kanashiro,Hilary M;
Revista Peruana de Medicina Experimental y Salud Pública , 2012, DOI: 10.1590/S1726-46342012000300013
Abstract: interventions to prevent malnutrition or overweight in children focus on the diet, and give little attention to the behaviors of their caretakers. in their first two years of life, children adopt practices that are embedded in their environment and the behaviors of their caretakers, thus turning into nutrition patterns that will persist during their lifetimes. therefore, children and caretakers establish a relationship in which they recognize, construe and respond to verbal and non verbal communication signs. feeding a child by adopting a “responsive” behavior in which caretakers provide guidance and structure, and respond to children’s signs of hunger and satiety promotes self-regulation and children’s awareness of healthy nutrition. in this article, we give recommendations to include responsive nutrition and model healthy eating behaviors in nutritional interventions
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