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| Kokron,Cristina M.; Errante,Paolo R.; Barros,Myrthes T.; Baracho,Gisele V.; Camargo,Maristela M.; Kalil,Jorge; Rizzo,Luiz V.. |
| Common variable immunodeficiency (CVID) is an immunological disorder characterized by defective antibody production, recurrent infections, most notably of the respiratory tract, autoimmune phenomena and cancer. Some CVID patients may also present disturbances of the cellular immune response such as a decrease in the number and proportion of different lymphocyte populations, diminished lymphoproliferative response to mitogens and antigens, altered production of cytokines, and deficient expression of cell-surface molecules. Most Brazilian CVID patients included in this study show a decrease in T and B lymphocyte counts in the peripheral blood. Furthermore, their lymphocytes are more susceptible to apoptosis following activation than normal individuals, and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Immunodeficiency; Humans; Antibody; Cytokines; Clinical features. |
| Ano: 2004 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652004000400007 |
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| Filho,José Jeová de Oliveira; Filho,Benedito Herani; Reis,Francisco Prado; Feitosa,Vera Lúcia Correa; Aragão,José Aderval. |
| The aim was to detect the presence of bundles of collagen fibers in the margins of the esophageal hiatus and establish if there is any relationship of these bundles with the anatomy of the hiatus. Ten adult male cadavers, with no gross anatomical alteration caused by trauma, surgery or disease, upon the esophageal hiatus were used in the study. A piece of anatomical structure comprising the diaphragm with the esophageal hiatus and adjacent tissues was removed, dissected and 10% formol embedding. With the aid of a digital caliper, measurements of the perimeter of the esophageal hiatus were done both in the abdominal and thoracic sides. For the structural study each margin was divided in six sections. Staining techniques of Masson and Picrosirius-hematoxilin... |
| Tipo: Journal article |
Palavras-chave: Diaphragm; Esophagogastric Junction; Collagen; Cadaver; Humans. |
| Ano: 2012 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022012000300015 |
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| Ramos,Taciana Rabelo Ramalho; Pinheiro Junior,José Wilton; Moura Sobrinho,Pedro Alves de; Santana,Vânia Lúcia de Assis; Guerra,Neurisvan Ramos; Melo,Lúcio Esmeraldo Honório de; Mota,Rinaldo Aparecido. |
| The aim of this paper was to study some epidemiological aspects of the infection by Brucella abortus in risk occupational groups in the microregion of Araguaína, Tocantins. For antibody research, 645 serum samples were analyzed by the complement fixation test (CF). A 4.0% frequency was found (26/645) in patients' serum and among those 4.1% (23/551) were slaughterhouses employees and 8.1% (3/37) rural workers. Of the total positive samples, three (2.0%) were women and 23 (4.7%) men; ten (2.9%) were between the ages of 18 and 30, six (3.4%) between 31 and 40, and nine (8.0%) were above 41 years of age. Risk factors for brucellosis in the study groups were age, background (OR = 2.45; CI 95% = 0.98 to 6.10) and previous work conducted with production animals... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Brucellosis; Epidemiology; Humans; Risk factors. |
| Ano: 2008 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702008000200007 |
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| Graeff,F.G.; Parente,A.; Del-Ben,C.M.; Guimarães,F.S.. |
| This review covers the effect of drugs affecting anxiety using four psychological procedures for inducing experimental anxiety applied to healthy volunteers and patients with anxiety disorders. The first is aversive conditioning of the skin conductance responses to tones. The second is simulated public speaking, which consists of speaking in front of a video camera, with anxiety being measured with psychometric scales. The third is the Stroop Color-Word test, in which words naming colors are painted in the same or in a different shade, the incongruence generating a cognitive conflict. The last test is a human version of a thoroughly studied animal model of anxiety, fear-potentiated startle, in which the eye-blink reflex to a loud noise is recorded. The... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Anxiety; Experimental anxiety; Humans; Anxiolytic drugs; Anxiety disorders. |
| Ano: 2003 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2003000400003 |
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| Horta,Mauricio C.; Scott,Fabio B.; Correia,Thaís R.; Fernandes,Julio I.; Richtzenhain,Leonardo J.; Labruna,Marcelo B.. |
| The present study evaluated the rickettsial infection in a laboratory colony of cat fleas, Ctenocephalides felis felis (Bouche) in Brazil. All flea samples (30 eggs, 30 larvae, 30 cocoons, 30 males, and 30 females) tested by polymerase chain reaction (PCR) were shown to contain rickettsial DNA. PCR products, corresponding to the rickettsial gltA, htrA, ompA and ompB gene partial sequences were sequenced and showed to correspond to Rickettsia felis, indicating that the flea colony was 100% infected by R. felis. The immunofluorescence assay (IFA) showed the presence of R. felis-reactive antibodies in blood sera of 7 (87.5%) out of 8 cats that were regularly used to feed the flea colony. From 15 humans that used to work with the flea colony in the laboratory,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Rickettsia felis; Flea; Ctenocephalides felis felis; Cats; Humans. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822010000300035 |
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