Your browser doesn't support javascript.
loading
Show: 20 | 50 | 100
Results 1 - 20 de 24
Filter
1.
Arq. bras. med. vet. zootec ; Arq. bras. med. vet. zootec. (Online);65(1): 103-111, fev. 2013. ilus, graf
Article in English | LILACS | ID: lil-667543

ABSTRACT

Foram utilizados 12 exemplares de Ara ararauna - seis fêmeas e seis machos -, cinco exemplares de Ara chloropterus (uma fêmea e quatro machos) e dois exemplares de Anodorhynchus hyacinthinus - uma fêmea e um macho -, todos adultos, doados por criadouro particular, após óbito natural. Os lobos foram dissecados e medidos com paquímetro - comprimento x largura x espessura - e analisados quanto ao peso, à topografia e à morfologia individual. Independentemente do gênero, foram identificados, em 17 casos (89,5%), lobos tímicos nos antímeros cervicais esquerdo e direito, e em oito casos (42,1%), lobos na cavidade celomática. Os lobos apresentaram formatos alongados - 52,6% -, arredondados - 21,1% - ou ovalados - 15,8% -, posicionados preferencialmente ventromedialmente ao longo do plexo vasculoneural do pescoço, com número médio de cinco lobos por antímero, tamanho médio de 0,49cm de comprimento, 0,12cm de largura e 0,05cm de espessura e peso médio de 0,076g.


Twelve samples of Ara ararauna - six females and six males -, five samples of Ara chloropterus (one female and four males) and two samples of Anodorhynchus hyacinthinus (one female and one male), all adults from a Breeding Park, were used after natural death. The lobes were dissected and measured with electronic calliper (length x width x thickness) and analyzed taking their weight, topography and individual morphology into account. Regardless of gender, 89.5% of the cases presented timic lobes in the left and right cervical antimere, and 42.1% of the cases presented lobes in the celomatic cavity. The lobes were shown in shapes - long (52.6%), round (21.1%) or oval (15.8%), positioned mostly ventromedially, along the neurovascular plexus of the neck, with an average of five lobes per antimere, and an average size of 0.49cm length, 0.12cm width, and 0.05cm thick and average weight of 0.076g.


Subject(s)
Animals , Birds/anatomy & histology , Birds/growth & development , Biometry/methods , Wolves/anatomy & histology , Thymus Gland/anatomy & histology , Thymus Gland/growth & development
2.
Arq. bras. med. vet. zootec ; 65(1): 103-111, 2013. ilus, graf
Article in English | VETINDEX | ID: vti-9853

ABSTRACT

Foram utilizados 12 exemplares de Ara ararauna - seis fêmeas e seis machos -, cinco exemplares de Ara chloropterus (uma fêmea e quatro machos) e dois exemplares de Anodorhynchus hyacinthinus - uma fêmea e um macho -, todos adultos, doados por criadouro particular, após óbito natural. Os lobos foram dissecados e medidos com paquímetro - comprimento x largura x espessura - e analisados quanto ao peso, à topografia e à morfologia individual. Independentemente do gênero, foram identificados, em 17 casos (89,5%), lobos tímicos nos antímeros cervicais esquerdo e direito, e em oito casos (42,1%), lobos na cavidade celomática. Os lobos apresentaram formatos alongados - 52,6% -, arredondados - 21,1% - ou ovalados - 15,8% -, posicionados preferencialmente ventromedialmente ao longo do plexo vasculoneural do pescoço, com número médio de cinco lobos por antímero, tamanho médio de 0,49cm de comprimento, 0,12cm de largura e 0,05cm de espessura e peso médio de 0,076g.(AU)


Twelve samples of Ara ararauna - six females and six males -, five samples of Ara chloropterus (one female and four males) and two samples of Anodorhynchus hyacinthinus (one female and one male), all adults from a Breeding Park, were used after natural death. The lobes were dissected and measured with electronic calliper (length x width x thickness) and analyzed taking their weight, topography and individual morphology into account. Regardless of gender, 89.5% of the cases presented timic lobes in the left and right cervical antimere, and 42.1% of the cases presented lobes in the celomatic cavity. The lobes were shown in shapes - long (52.6%), round (21.1%) or oval (15.8%), positioned mostly ventromedially, along the neurovascular plexus of the neck, with an average of five lobes per antimere, and an average size of 0.49cm length, 0.12cm width, and 0.05cm thick and average weight of 0.076g.(AU)


Subject(s)
Animals , Biometry/methods , Birds/anatomy & histology , Birds/growth & development , Thymus Gland/anatomy & histology , Thymus Gland/growth & development , Wolves/anatomy & histology
3.
Eur J Orthod ; 34(1): 109-13, 2012 Feb.
Article in English | MEDLINE | ID: mdl-21273285

ABSTRACT

UNLABELLED: This randomized split-mouth study was aimed at evaluating whether an orthodontic appliance per se or orthodontic tooth movement can induce detectable changes in gingival crevicular fluid (GCF) volume, and thus whether GCF volume is a predictable biomarker for tissue remodelling incident to orthodontic tooth movement. MATERIALS AND METHODS: Sixteen healthy orthodontic patients (7 females and 9 males; mean age, 17.7 years; range, 13-27 years) with the need for extraction of the first upper premolars were enrolled. One randomly chosen maxillary canine was subjected to a distalizing force by a 0.017 × 0.025 inch titanium-molybdenum alloy archwire and considered as the test tooth (TT). The contralateral canine, which was not subjected to any force but was included in an orthodontic appliance, was used as a control (CT). GCF sampling was performed at both mesial and distal sites of the CTs and TTs at baseline, immediately before applying the orthodontic appliance, and after 1 hour, 24 hours, and 7, 14, and 21 days. A Periotron was used to measure the GCF volume. A modest but significant increase in the GCF volume over time was seen in both the CTs (mesial sites) and the TTs (both mesial and distal sites) with no differences between the experimental teeth. Subclinical tissue inflammation consequent to the placement of the orthodontic appliance might be responsible for these GCF volume changes. The GCF volume does not appear to be a reliable biomarker for tissue remodelling during orthodontic treatment.


Subject(s)
Gingival Crevicular Fluid/chemistry , Tooth Movement Techniques/methods , Adolescent , Adult , Alloys/chemistry , Biomarkers/analysis , Cuspid/pathology , Dental Alloys/chemistry , Dental Plaque Index , Female , Follow-Up Studies , Humans , Longitudinal Studies , Male , Nickel/chemistry , Orthodontic Brackets , Orthodontic Wires , Periodontal Index , Titanium/chemistry , Tooth Movement Techniques/instrumentation , Young Adult
4.
Ars vet ; 26(2): 88-94, 2010. ilus, tab
Article in Portuguese | VETINDEX | ID: biblio-1418943

ABSTRACT

Este trabalho objetivou descrever a origem e a distribuição dos ramos da artéria celíaca em 19 aves dos gêneros Crax e Mitu, oriundas do Criatório Científico e Cultural de Poços de Caldas, doadas após óbito natural. Para o preenchimento do sistema vascular foi utilizada solução aquosa de látex corado, seguido de imediata fixação em solução aquosa de formol a 10%. Posteriormente, dissecaram-se os colaterais responsáveis pela irrigação do canal alimentar, fígado, baço e pâncreas. A artéria proventricular dorsal foi o primeiro ramo emitido antes da bifurcação da artéria celíaca em ramos esquerdo e direito. O ramo esquerdo enviou as artérias gástrica dorsal, proventricular ventral (e seus ramos ventriculares), gástrica ventral, gástrica esquerda e pilóricas para a junção ventrículo-duodenal, além de ramos ao esôfago e pericárdio. A artéria hepática esquerda foi ramo da artéria gástrica ventral ou da gástrica esquerda. O ramo direito emitiu grande número de artérias esplênicas, a artéria duodenojejunal, qual formou anastomoses em arcada com os ramos oriundos da artéria mesentérica cranial, artéria duodenal para o segmento inicial do duodeno e artéria hepática direita. Os ramos vesiculares foram oriundos da artéria hepática direita ou da artéria pancreáticoduodenal e, em um caso, uma artéria esplênica irrigou a região dorsal do ventrículo. Em seu segmento terminal, o ramo direito dividiu-se em artérias gástrica direita e pancreaticoduodenal, a qual ainda enviou a artéria ileocecal para o segmento final de íleo e ceco esquerdo. Quando comparados estes achados com os gêneros Gallus e Anas, notaram-se semelhanças em quase toda a distribuição da artéria celíaca, a não ser pela modificação da artéria esofágica como primeiro ramo enviado, bem como a distribuição exclusiva da artéria ileocecal para o ceco esquerdo e, a emissão de um ramo esplênico pela artéria gástrica dorsal.


This study describes the origin and distribution of branches of the celiac artery in 19 birds of the genera Crax and Mitu, originated from the breeding facility Scientific and Cultural of Pocos de Caldas, donated after natural death. To fill the vascular system it was used aqueous solution of colored latex, followed by immediate fixation in aqueous 10% formaldehyde. Subsequently, dissected to the side responsible for irrigation of the alimentary canal, liver, spleen and pancreas. The proventricular dorsal artery was issued before the first branch of the bifurcation of the celiac artery branches into left and right. The branch has sent the left gastric arteries dorsal, ventral proventricular (and its ventricular branches), ventral gastric, left gastric and pyloric junction to the ventriculo-duodenal, and branches to the esophagus and pericardium. The left hepatic artery was a branch of the ventral gastric artery or left gastric arteries. The right branch has issued a large number of splenic artery, the artery duodenojejunal, which formed in arcade anastomoses with the branches from the cranial mesenteric artery, duodenal artery to the initial segment of the duodenum and right hepatic artery. Vesicular branches came from the right hepatic artery or pancreaticoduodenal artery and in one case a splenic artery irrigated the dorsal region of the ventricle. In its terminal segment, the right branch was divided into right gastric and pancreaticoduodenal arteries, which also sent the ileocecal artery for the final segment of ileum and cecum left. When comparing these findings with the genera Gallus and Anas, similarities are noted in almost the entire distribution of the celiac artery, unless the modification of the esophageal artery as first branch sent, as well as the exclusive distributor of ileocecal artery to the left cecum and the issue of a splenic branch by the artery dorsal gastric.


Subject(s)
Animals , Arteries/anatomy & histology , Celiac Artery/anatomy & histology , Galliformes/anatomy & histology , Birds/anatomy & histology
5.
Ars vet ; 26(2): 088-094, 2010.
Article in Portuguese | VETINDEX | ID: vti-33186

ABSTRACT

Este trabalho objetivou descrever a origem e a distribuição dos ramos da artéria celíaca em 19 aves dos gêneros Crax e Mitu, oriundas do Criatório Científico e Cultural de Poços de Caldas, doadas após óbito natural. Para o preenchimento do sistema vascular foi utilizada solução aquosa de látex corado, seguido de imediata fixação em solução aquosa de formol a 10%. Posteriormente, dissecaram-se os colaterais responsáveis pela irrigação do canal alimentar, fígado, baço e pâncreas. A artéria proventricular dorsal foi o primeiro ramo emitido antes da bifurcação da artéria celíaca em ramos esquerdo e direito. O ramo esquerdo enviou as artérias gástrica dorsal, proventricular ventral (e seus ramos ventriculares), gástrica ventral, gástrica esquerda e pilóricas para a junção ventrículo-duodenal, além de ramos ao esôfago e pericárdio. A artéria hepática esquerda foi ramo ora da artéria gástrica ventral e ora da gástrica esquerda. O ramo direito emitiu grande número de artérias esplênicas, a artéria duodenojejunal, qual formou anastomoses em arcada com os ramos oriundos da artéria mesentérica cranial, artéria duodenal para o segmento inicial do duodeno e artéria hepática direita. Os ramos vesiculares foram oriundos ora da artéria hepática direita e ora da artéria pancreáticoduodenal e, em um caso, uma artéria esplênica irrigou a região dorsal do ventrículo. Em seu segmento terminal, o ra

6.
Ars Vet. ; 26(2): 088-094, 2010.
Article in Portuguese | VETINDEX | ID: vti-714853

ABSTRACT

Este trabalho objetivou descrever a origem e a distribuição dos ramos da artéria celíaca em 19 aves dos gêneros Crax e Mitu, oriundas do Criatório Científico e Cultural de Poços de Caldas, doadas após óbito natural. Para o preenchimento do sistema vascular foi utilizada solução aquosa de látex corado, seguido de imediata fixação em solução aquosa de formol a 10%. Posteriormente, dissecaram-se os colaterais responsáveis pela irrigação do canal alimentar, fígado, baço e pâncreas. A artéria proventricular dorsal foi o primeiro ramo emitido antes da bifurcação da artéria celíaca em ramos esquerdo e direito. O ramo esquerdo enviou as artérias gástrica dorsal, proventricular ventral (e seus ramos ventriculares), gástrica ventral, gástrica esquerda e pilóricas para a junção ventrículo-duodenal, além de ramos ao esôfago e pericárdio. A artéria hepática esquerda foi ramo ora da artéria gástrica ventral e ora da gástrica esquerda. O ramo direito emitiu grande número de artérias esplênicas, a artéria duodenojejunal, qual formou anastomoses em arcada com os ramos oriundos da artéria mesentérica cranial, artéria duodenal para o segmento inicial do duodeno e artéria hepática direita. Os ramos vesiculares foram oriundos ora da artéria hepática direita e ora da artéria pancreáticoduodenal e, em um caso, uma artéria esplênica irrigou a região dorsal do ventrículo. Em seu segmento terminal, o ra

7.
Arq. ciênc. vet. zool. UNIPAR ; 9(1): 15-20, jan.-jun.2006.
Article in Portuguese | VETINDEX | ID: vti-3393

ABSTRACT

Trinta fetos de suínos Sus scrofa da linhagem AG-1050 foram avaliadas com o objetivo de determinar a origem e distribuição do nervo obturatório. Os materiais foram preparados com injeção de solução aquosa de formol a 10% através da aorta descendente torácica, e mantidos em recipientes apropriados. Para melhor identificação do nervo obturatório, empregou-se solução de álcool absoluto e ácido acético glacial na proporção 70/30 respectivamente. Constatou-se sua origem nos ramos ventrais do nervo espinhal L4 em 96,65%, L5 em todos os casos e L6 em 56,65% dos espécimes analisados. Originou-se, em todos, os espécimes em conjunto com o nervo femoral e em 56,65% com o nervo isquiático em ambos os antímeros e se distribuiu nos músculos grácil, pectíneo, adutor, obturadores interno e externo, quadrado femoral, semimembranáceo e sartório.(AU)


Thirty fetuses of Sus scrofa swine of AG-1050 lineage were studied, aiming at determining the origin and distribution of the obituary nerve. The material used was prepared with the injection of aqueous solution of formol 10% through thoracic descendent aorta and it was maintained in appropriate recipients. To a better identification of the obituary nerve, we used solution of absolute alcohol and acetic glacial acid in proportion of 70 to 30, respectively. The origin was observed in the ventral branches of L4 spinal nerve (96.65%), L5 in all occasions, and L6 (56.65%), in the analyzed specimen. In all animals studied the obituary nerve was originated together with femoral nerve and in 56.65% with sciatic nerve in both of the antimeres, and it was distributed to the muscles: gracilis, pectinea, adductor, internal and external obituaries, femoral quadrate, semimembrane and sartorius.(AU)


Treinta fetos de cerdos Sus scrofa domesticus del linaje AG-1050 han sido evaluados con el objetivo de determinar el origen y distribución del nervio obturador. Los materiales han sido preparados con inyección de solución acuosa de formol a 10% através de la aorta descendente torácica, y mantenidos en recipientes apropiados. Para mejor identificación del nervio obturador se empleó solución de alcohol absoluto y ácido acético glacial en la proporción 70/30 respectivamente. Se constató su origen en los ramos ventrales del nervio espinal L4 (96,65%), L5, en todos los casos y L6 (56,25%) de los especímenes en conjunto con el nervio femoral y en 56,65% con el nervio isquiático en ambos antímeros, y se ha distribuído en los músculos gracili, pectíneo, aductor, obturadores interno y externo, cuadrado femoral, semimembranoso y sartorio.(AU)


Subject(s)
Obturator Nerve/anatomy & histology , Swine
8.
Arq. ciênc. vet. zool. UNIPAR ; 9(1): 15-20, jan.-jun. 2006.
Article in Portuguese | LILACS | ID: lil-453710

ABSTRACT

Trinta fetos de suínos Sus scrofa da linhagem AG-1050 foram avaliadas com o objetivo de determinar a origem e distribuição do nervo obturatório. Os materiais foram preparados com injeção de solução aquosa de formol a 10 através da aorta descendente torácica, e mantidos em recipientes apropriados. Para melhor identificação do nervo obturatório, empregou-se solução de álcool absoluto e ácido acético glacial na proporção 70/30 respectivamente. Constatou-se sua origem nos ramos ventrais do nervo espinhal L4 em 96,65, L5 em todos os casos e L6 em 56,65 dos espécimes analisados. Originou-se, em todos, os espécimes em conjunto com o nervo femoral e em 56,65 com o nervo isquiático em ambos os antímeros e se distribuiu nos músculos grácil, pectíneo, adutor, obturadores interno e externo, quadrado femoral, semimembranáceo e sartório.


Thirty fetuses of Sus scrofa swine of AG-1050 lineage were studied, aiming at determining the origin and distribution of the obituary nerve. The material used was prepared with the injection of aqueous solution of formol 10 through thoracic descendent aorta and it was maintained in appropriate recipients. To a better identification of the obituary nerve, we used solution of absolute alcohol and acetic glacial acid in proportion of 70 to 30, respectively. The origin was observed in the ventral branches of L4 spinal nerve (96.65), L5 in all occasions, and L6 (56.65), in the analyzed specimen. In all animals studied the obituary nerve was originated together with femoral nerve and in 56.65 with sciatic nerve in both of the antimeres, and it was distributed to the muscles: gracilis, pectinea, adductor, internal and external obituaries, femoral quadrate, semimembrane and sartorius.


Treinta fetos de cerdos Sus scrofa domesticus del linaje AG-1050 han sido evaluados con el objetivo de determinar el origen y distribución del nervio obturador. Los materiales han sido preparados con inyección de solución acuosa de formol a 10 através de la aorta descendente torácica, y mantenidos en recipientes apropiados. Para mejor identificación del nervio obturador se empleó solución de alcohol absoluto y ácido acético glacial en la proporción 70/30 respectivamente. Se constató su origen en los ramos ventrales del nervio espinal L4 (96,65), L5, en todos los casos y L6 (56,25) de los especímenes en conjunto con el nervio femoral y en 56,65 con el nervio isquiático en ambos antímeros, y se ha distribuído en los músculos gracili, pectíneo, aductor, obturadores interno y externo, cuadrado femoral, semimembranoso y sartorio.


Subject(s)
Obturator Nerve/anatomy & histology , Swine
9.
Mem Inst Oswaldo Cruz ; 96 Suppl: 147-50, 2001.
Article in English | MEDLINE | ID: mdl-11586441

ABSTRACT

A combined clinical and sonographic classification of hepatosplenic schistosomiasis mansoni to be used in field-based studies is proposed herein. Seven hundred forty one individuals out of 892 (83%), living in an area endemic for schistosomiasis in Brazil, have been submitted to clinical and ultrasound examinations. Based on two stool examinations the overall prevalence for schistosomiasis in this area was 73%. Abdominal palpation was performed with patients in dorsal decubit, during deep breath, by two experienced physicians and a portable ultrasound was used for the evaluation of liver fibrosis, portal collaterals and spleen size. Four groups of individuals were identified using data obtained by abdominal palpation and ultrasound examination: (1) palpable spleen and intense periportal thickening in 9 individuals (1.2%); (2) spleen not palpable and intense periportal thickening in 15 (2%); (3) palpable spleen with light to moderate periportal thickening in 32 (4.3%), and (4) palpable spleen with a normal liver on ultrasound in 30 (4%). The definition of hepatosplenic schistosomiasis in field-based studies as the finding of Schistosoma mansoni eggs in the stools in an individual with splenomegaly is not acceptable anymore. Abdominal ultrasound should be combined with clinical examination to accurately identify hepatosplenics in endemic areas for schistosomiasis.


Subject(s)
Liver Diseases, Parasitic/diagnosis , Schistosomiasis mansoni/diagnosis , Splenic Diseases/diagnosis , Adolescent , Adult , Aged , Aged, 80 and over , Brazil/epidemiology , Child , Child, Preschool , Female , Humans , Liver Diseases, Parasitic/diagnostic imaging , Liver Diseases, Parasitic/epidemiology , Male , Middle Aged , Palpation , Prevalence , Schistosomiasis mansoni/diagnostic imaging , Schistosomiasis mansoni/epidemiology , Splenic Diseases/diagnostic imaging , Splenic Diseases/epidemiology , Ultrasonography
10.
Mem Inst Oswaldo Cruz ; 96(3): 293-302, 2001 Apr.
Article in English | MEDLINE | ID: mdl-11313634

ABSTRACT

Published and unpublished observations on geographical distribution of Biomphalaria snails in the State of Minas Gerais, Brazil, were compiled. This work is aimed at knowing the present occurrence of Biomphalaria species in this region, and at contributing to the elaboration of the planorbid chart of Minas Gerais. In malacological surveys, performed by several researchers, the presence of seven species of this genus was recorded. Those planorbids were found in 12 mesoregions, in 283 (33.1%) municipalities out of 853 with the following distribution: B. glabrata (185 municipalities), B. straminea (125), B. tenagophila (58), B. peregrina (57), B. schrammi (26), B. intermedia (20) and B. occidentalis (2). B. glabrata and B. tenagophila are found naturally infected by Schistosoma mansoni in Minas Gerais. In 24 municipalities the three snail hosts of S. mansoni in Brazil, B. glabrata, B. tenagophila and B. straminea, are present.


Subject(s)
Biomphalaria/classification , Disease Vectors/classification , Animals , Brazil , Population Density , Species Specificity
11.
Braz. j. vet. res. anim. sci ; 36(2): 59-65, 1999. ilus
Article in Portuguese | VETINDEX | ID: vti-11035

ABSTRACT

Estudaram-se em 30 exemplares de matrizes pesadas de corte machos da linhagem Peterson (Gallus gallus domesticus), com idade variando de 10 a 12 semanas, a origem, o número e a ordenação dos vasos arteriais da bolsa cloacal, um dos órgãos responsáveis pela produção de respostas humorais nas aves. Mediante injeção dos contingentes arteriais com solução aquosa de Artecola§ a 50 por cento, via artéria isquiática direita, a dissecação evidenciou que em 100 por cento dos casos a bolsa cloacal era irrigada por 1 ou 2 artérias bursocloacais; em 16,66 por cento dos casos por 1 ramo direto oriundo das artérias cloacais; em 6,66 por cento dos casos por 2 ramos diretos da artéria caudal mediana e em 3,33 por cento dos casos por 1 ramo bursal da artéria mesentérica caudal. O número de vasos, independentemente da sua origem, variou de 2 a 5 com maior freqüência de 2 vasos. A distribuição dos vasos se fez de maneira própria para cada peça.(AU)


Subject(s)
Animals , Male , Poultry , Bursa of Fabricius/blood supply
12.
Braz. j. vet. res. anim. sci ; 36(2): 59-65, 1999. ilus
Article in Portuguese | LILACS | ID: lil-283490

ABSTRACT

Estudaram-se em 30 exemplares de matrizes pesadas de corte machos da linhagem Peterson (Gallus gallus domesticus), com idade variando de 10 a 12 semanas, a origem, o número e a ordenaçäo dos vasos arteriais da bolsa cloacal, um dos órgäos responsáveis pela produçäo de respostas humorais nas aves. Mediante injeçäo dos contingentes arteriais com soluçäo aquosa de Artecola§ a 50 por cento, via artéria isquiática direita, a dissecaçäo evidenciou que em 100 por cento dos casos a bolsa cloacal era irrigada por 1 ou 2 artérias bursocloacais; em 16,66 por cento dos casos por 1 ramo direto oriundo das artérias cloacais; em 6,66 por cento dos casos por 2 ramos diretos da artéria caudal mediana e em 3,33 por cento dos casos por 1 ramo bursal da artéria mesentérica caudal. O número de vasos, independentemente da sua origem, variou de 2 a 5 com maior freqüência de 2 vasos. A distribuiçäo dos vasos se fez de maneira própria para cada peça


Subject(s)
Animals , Male , Bursa of Fabricius/blood supply , Poultry
14.
Mem Inst Oswaldo Cruz ; 93 Suppl 1: 245-8, 1998.
Article in English | MEDLINE | ID: mdl-9921361

ABSTRACT

This study was undertaken to determine the accuracy of splenic palpation for the diagnosis of splenomegaly, and to determine whether the frequency of individuals with a palpable spleen in an endemic area can be considered as an index of morbidity of schistosomiasis. For the clinical diagnosis of splenomegaly, two criteria have been tested: (A) presence of a palpable spleen and (B) presence of a palpable spleen whose border could be felt more than 4 cm below the costal margin. In an area of high prevalence of the disease (66.3%) 285 individuals aged 18 years or more have been submitted to abdominal ultrasonography and physical examination. Splenomegaly was defined as a splenic length greater than 120 mm by ultrasound and the sensitivity, specificity, positive and negative predictive values of criterion A were 72.2%, 90.5%, 35.1% and 97.8%. The values for criterion B were 27.8%, 98%, 50% and 95%, respectively. In an non endemic area, 517 individuals were submitted to the same protocol and 22 individuals had a palpable spleen, but no patient fulfilled criterion B for splenomegaly, and only one met the ultrasonographic criterion for splenomegaly. The authors concluded that abdominal palpation is a poor method for the diagnosis of splenomegaly.


Subject(s)
Palpation/methods , Schistosomiasis mansoni/epidemiology , Splenomegaly/diagnosis , Adolescent , Adult , Aged , Brazil/epidemiology , Child , Child, Preschool , Endemic Diseases , Humans , Infant , Infant, Newborn , Middle Aged , Morbidity , Predictive Value of Tests , Prevalence , Schistosomiasis mansoni/complications , Sensitivity and Specificity , Splenomegaly/epidemiology , Splenomegaly/etiology
15.
Mem Inst Oswaldo Cruz ; 93 Suppl 1: 249-53, 1998.
Article in English | MEDLINE | ID: mdl-9921362

ABSTRACT

Data on the association of schistosomiasis and hepatitis B in field-based studies are scarce. Two areas have been selected for this study: i) Queixadinha, endemic for schistosomiasis, with a population of 693 individuals, and ii) Capão, a control non-endemic area, with 515 inhabitants. Sera of all individuals in both areas were tested for hepatitis B infection, yearly, from 1994 to 1997. In the first area hepatitis B was found in 32.1% of children up to one year old and reached a peak of 68.7% in the age range of 15 to 19 years. In the control area the prevalence of hepatitis B was under 5% up to 19 years of age and the highest prevalence was observed in adults over 45. HBsAg was detected in 9.4% of the individuals living in the endemic area for schistosomiasis and in 1.4% of the controls (OR = 4.98; 95% CI = 3.7-6.7). The index of chronicity of HBsAg was not statistically different in the studied areas (8.1% x 7.3%; OR = 1.09; 95% CI = 0.42-3.03), nor was it different for people with and without schistosomiasis in Queixadinha (8.7% x 7.0%). We conclude that the Schistosoma mansoni infection has not altered the course of hepatitis B in the studied area.


Subject(s)
Hepatitis B Surface Antigens/blood , Hepatitis B, Chronic/complications , Schistosomiasis mansoni/complications , Adolescent , Adult , Aged , Aged, 80 and over , Analysis of Variance , Biomarkers , Brazil/epidemiology , Carrier State/blood , Chi-Square Distribution , Child , Child, Preschool , Endemic Diseases , Female , Humans , Infant , Infant, Newborn , Male , Middle Aged , Prevalence , Rural Population , Schistosomiasis mansoni/epidemiology
16.
Scand J Immunol ; 46(1): 96-102, 1997 Jul.
Article in English | MEDLINE | ID: mdl-9246214

ABSTRACT

It has been demonstrated that the chronic intestinal form of schistosomiasis is associated with the establishment and maintenance of a variety of immunoregulatory mechanisms that lead to a diminished granulomatous reaction to parasite eggs. Using an in vitro model of granuloma reaction we showed that immune complexes (IC) isolated from the sera of chronic intestinal schistosomiasis patients were able to reduce the granulomatous hypersensitivity (developed by peripheral blood mononuclear cells (PBMC) from schistosomiasis patients) to soluble egg antigen (SEA)-conjugated polyacrylamide beads (PB-SEA). This inhibitory activity, mediated by IC, was also observed in the proliferative response of PBMC stimulated with SEA and soluble worm antigen preparation (SWAP). Furthermore, we observed a decrease in TNF-alpha and an increase in IL-10 production by PBMC treated with IC in an in vitro granuloma reaction. This phenomenon was also seen in a cell proliferation assay when PBMC were treated with IC and stimulated with S. mansoni antigens. These results demonstrate that circulating IC may down-regulate PBMC reactivity to S. mansoni antigens by changing the cytokine pattern produced by these cells.


Subject(s)
Antigen-Antibody Complex/immunology , Antigens, Helminth/immunology , Interleukin-10/physiology , Schistosomiasis mansoni/immunology , Chronic Disease , Cytokines/physiology , Eggs , Granuloma/immunology , Humans , Hypersensitivity/immunology , Immune Tolerance , Lymphocyte Activation , Tumor Necrosis Factor-alpha/biosynthesis
17.
Trans R Soc Trop Med Hyg ; 91(3): 307-9, 1997.
Article in English | MEDLINE | ID: mdl-9231204

ABSTRACT

In patients with hepatosplenic schistosomiasis, characteristic thickening of the walls of the portal vein in the hilus and its central and peripheral branches is observed. In an area of high prevalence of the disease in Brazil, 424 individuals older than 5 years have been examined by abdominal ultrasonography and 146 presented fibrosis, classified as central in 31 (21%), peripheral in 56 (38%), and both central and peripheral in 59 (40%). The mean ages of the subjects in the 3 groups were 45.7, 24.1 and 31.9 years, respectively (P < 0.05). The presence of central fibrosis was associated with the presence of peripheral fibrosis (odds ratio 10.7, P < 0.000001). Splenomegaly was found in 16% and 15% of individuals with peripheral and both central and peripheral fibrosis, respectively. No subject with central but no peripheral fibrosis and splenomegaly was identified. We conclude that central fibrosis occurs among older subjects but should not be considered a criterion for advanced disease.


Subject(s)
Liver Cirrhosis/diagnostic imaging , Liver Diseases, Parasitic/diagnostic imaging , Portal Vein/diagnostic imaging , Schistosomiasis mansoni/diagnostic imaging , Adolescent , Adult , Aged , Aged, 80 and over , Brazil , Child , Child, Preschool , Female , Humans , Infant , Infant, Newborn , Liver Cirrhosis/complications , Liver Diseases, Parasitic/complications , Male , Middle Aged , Odds Ratio , Schistosomiasis mansoni/complications , Splenomegaly/complications , Ultrasonography
18.
Braz. j. vet. res. anim. sci ; 34(5): 288-91, 1997.
Article in Portuguese | LILACS | ID: lil-257117

ABSTRACT

Estudou-se em 30 coraçöes de bovinos azebuados, machos, com idade variando de 30 a 50 meses, a frequência, a largura, a posiçäo e a vasculotopia das pontes de miocárdio, mediante injeçäo das artérias coronárias com soluçäo de Neoprene látex 450 e posterior dissecaçäo. Os resultados indicam frequência de 100 por cento de coraçöes com pontes e 56,6 por cento das peças apresentaram pontes múltiplas. A largura das pontes variou de 0,3 cm a 6,2 cm com média de 1,62 cm e estas localizaram-se com maior frequência na regiäo média (36,8 por cento) do ventrículo. O ramo interventricular paraconal foi o que apresentou maior número e frequência de pontes


Subject(s)
Animals , Male , Cardiopulmonary Bypass/veterinary , Cattle , Coronary Circulation
19.
Rev Soc Bras Med Trop ; 29(2): 127-35, 1996.
Article in Portuguese | MEDLINE | ID: mdl-8713604

ABSTRACT

In an endemic area for schistosomiasis in the northeast of the state of Minas Gerais in Brazil 516 individuals have been submitted to clinical and laboratory examination, ultrasonography of the abdomen and dopplerecocardiography in order to define the morbidity of schistosomiasis before and after treatment. A high prevalence of schistosomiasis (66.3%) and of severe disease (9.5% with palpable spleens) were recorded. Ultrasonography classified liver periportal fibrosis as light (19.4%), moderate (27.6%) and intense (6.8%), and 46.0% presented no periportal fibrosis. Twenty one out of the 53 individuals (39.6%) with palpable spleens did not present liver fibrosis on ultrasound. Periportal lymph nodes were described in 33.8% of the population and anti-KLH antibodies were found in the serum of 40.7%. Urinary alterations compatible with the glomerulopathy of schistosomiasis were observed in 4.5% of the population, and 11.7% of the individuals examined by dopplerecocardiography had pulmonary hypertension. Twelve months after treatment for schistosomiasis the prevalence of the disease dropped from 66.3% to 25.0%. In Queixadinha, a profile of the morbidity of schistosomiasis has just been established.


Subject(s)
Schistosomiasis mansoni/epidemiology , Adolescent , Adult , Aged , Aged, 80 and over , Animals , Brazil/epidemiology , Child , Child, Preschool , Feces/parasitology , Humans , Hypertension, Pulmonary/epidemiology , Infant , Infant, Newborn , Kidney Diseases/parasitology , Kidney Glomerulus/parasitology , Middle Aged , Morbidity , Schistosoma mansoni/isolation & purification , Schistosomiasis mansoni/diagnostic imaging , Schistosomiasis mansoni/prevention & control , Ultrasonography
20.
Braz. j. vet. res. anim. sci ; 33(4): 207-13, 1996. ilus, tab
Article in Portuguese | LILACS | ID: lil-257102

ABSTRACT

Estudou-se em 134 coraçöes de cäes de diferentes raças a localizaçäo das pontes de miocárdio, mediante dissecaçäo das artérias coronárias injetadas com soluçäo de gelatina ou Neoprene Látex. Verificou-se que as pontes de miocárdio ocorrem em 90,43 por cento nos ramos da a. coronária esquerda e em 9,57 por cento nos ramos da a. coronária direita. Sua posiçäo foi assinalada em 37,23 por cento na porçäo dorsal do ventrículo, em 28,72 por cento na média, em 21,28 por cento na ventral, em 7,45 por cento no ápice e simultaneamente nas porçöes dorsal e média em 3,19 por cento e nas porçöes média e ventral em 2,13 por cento. Näo foram notadas diferenças estatisticamente significativas em relaçäo ao sexo


Subject(s)
Animals , Dogs/anatomy & histology , Coronary Artery Bypass/veterinary
SELECTION OF CITATIONS
SEARCH DETAIL