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1.
Arq. bras. med. vet. zootec. (Online) ; 74(5): 814-824, Sep.-Oct. 2022. tab, ilus
Article in English | VETINDEX | ID: biblio-1403417

ABSTRACT

The sloth is known for its slow movements and arboreal habits. Most parts of its anatomy need yet to be unveiled, in order to understand the peculiarities that justify its behavior. In this sense, an investigation of the external characteristics of the heart of the three-toed sloth, Bradypus variegatus, was carried out to indicate the shape, the faces, the dimensions, the topography, and the coating of this organ. For this purpose, fifteen corpses destined for dissection and four healthy specimens were used to carry out thorax digital x-ray. Based on the obtained results, it was noticed that the heart of the species in question presents conical shape, situated obliquely in the mediastinum, is displaced to the left and has latero-lateral slight flattening. Among the animals, discrepancies were found in the organ skeletopy, which presents the tapered apex and the base, in which the large vessels can be observed, whose arrangements also proved to be variables. The heart presents faces (right and left), margins (cranial and caudal) and is surrounded by the pericardium, which gives off two ligaments, sternopericardial and phrenico pericardial. Its size is proportional to the age and length of the individual, with measurements, in general, slightly larger in males.


O bicho-preguiça é conhecido por seus movimentos lentos e por seu hábito arborícola. Muito de sua anatomia precisa ainda ser desvendada, com o objetivo de se entender as peculiaridades que justificam seu comportamento. Nesse sentido, realizou-se uma investigação das características externas do coração da preguiça-de-três-dedos, Bradypus variegatus, a fim de apontar a forma, as faces, as dimensões, a topografia e o revestimento desse órgão. Para tal, foram utilizados 15 cadáveres destinados à dissecação e quatro espécimes hígidos para realização de radiografia digital do tórax. Com base nos resultados obtidos, observou-se que o coração da espécie em questão apresenta formato cônico, situa-se obliquamente no mediastino médio, é deslocado para o antímero esquerdo e possui achatamento laterolateral. Foram constatadas, entre os animais, discrepâncias na esqueletopia do órgão, que apresenta um ápice afilado e uma base, na qual se podem observar os grandes vasos, cujos arranjos também se demonstraram variáveis. O coração apresenta faces (direita e esquerda), margens (cranial e caudal) e encontra-se envolvido pelo pericárdio, que emite dois ligamentos, esternopericárdico e frenicopericárdico. Seu tamanho é proporcional à idade e ao comprimento do indivíduo, com medidas, em geral, levemente maiores nos machos.


Subject(s)
Animals , Pericardium/anatomy & histology , Sloths/anatomy & histology , Heart/anatomy & histology
2.
Arq. bras. med. vet. zootec. (Online) ; 74(5): 825-832, Sep.-Oct. 2022. ilus
Article in English | VETINDEX | ID: biblio-1403420

ABSTRACT

Bradypus variegatus, the common sloth, belongs to the Bradypodidae family, being considered a biological model to be applied in multidisciplinary research. This study was developed with the aim of being applied to clinical medicine and to the adequate management of the common sloth. Ten sloths were utilized, obtained post-natural death. The animals were fixed and to obtain the results, they were submitted to the dissection technique. For 80% of the animals, the portal vein originated from five tributaries, which were: the resulting vein from the anastomosis of the cardia vein, fundic vein, and the pyloric branches; the mesenteric trunk; the vein formed by the confluence of the stomach body branches and the cranial portion of the cavity of the cardia; the pyloric vein and splenic vein. While in 20% of the animals, the portal vein was comprised of six tributaries, because the fundic vein and cardia vein form two direct anastomoses, arriving at the portal vein two tributary vessels. This pattern differs in number and arrangement of branches when compared to the main domestic species. Therefore, the hepatic portal system is responsible for the drainage of the stomach, spleen, pancreas and intestines.


Bradypus variegatus, a preguiça-comum, pertence à família Bradypodidae, sendo considerada um modelo biológico a ser aplicado em pesquisas multidisciplinares. Este estudo foi desenvolvido a fim de ser aplicado à clínica médica e ao manejo adequado da preguiça-comum. Foram utilizadas 10 preguiças, obtidas após morte natural. Os animais foram fixados e, para a obtenção dos resultados, submeteram-se à técnica de dissecação. Em 80% das observações, a veia porta originou-se a partir de cinco tributárias, são elas: a veia resultante da anastomose da veia cárdia, da veia fúndica e dos ramos pilóricos; o tronco mesentérico; a veia formada a partir da confluência de ramos do corpo estomacal e da porção cranial da cavidade cárdica; a veia pilórica e a veia esplênica. Enquanto em 20% dos animais a veia porta é constituída por seis tributárias, a veia fúndica e a veia cárdica formam duas anastomoses diretas, chegando à veia porta dois vasos tributários. Esse padrão difere em número e em disposição dos ramos, quando comparado ao das principais espécies domésticas. Portanto, o sistema porta hepático é responsável pela drenagem do estômago, do baço, do pâncreas e dos intestinos.


Subject(s)
Animals , Female , Portal System/anatomy & histology , Sloths/anatomy & histology , Veins/anatomy & histology , Liver Circulation
3.
Arq. bras. med. vet. zootec. (Online) ; 73(4): 877-884, Jul.-Aug. 2021. tab
Article in English | LILACS, VETINDEX | ID: biblio-1285269

ABSTRACT

The aim of this study was to establish reference parameters for the hematological and biochemical levels of five healthy captive sloths of the speciesBradypus variegatus(brown-throated sloth) feeding onCecropia pachystachya(Ambay pumpwood), alternating with a period of free diet in the Dois Irmãos State Park (DISP) Recife, Pernambuco - Brazil.(AU)


O objetivo da presente pesquisa foi estabelecer parâmetros de referência para níveis hematológicos e bioquímicos, de cinco preguiças sadias, da espécie Bradypus variegatus (preguiça-de-garganta-marrom), em cativeiro, alimentando-se de Cecropia pachystachya (embaúba) em períodos alternados com dieta livre, no Parque Estadual de Dois Irmãos (PEDI) Recife, Pernambuco-Brasil.(AU)


Subject(s)
Animals , Sloths/blood , Cecropia Plant , Brazil , /methods , Hematologic Tests/veterinary
4.
Braz J Med Biol Res ; 54(10): e10730, 2021.
Article in English | MEDLINE | ID: mdl-34287577

ABSTRACT

Chondroitin sulfate (CS) is a type of glycosaminoglycan described as an antioxidant molecule that has been found in animal species such as fish. Tilapia (Oreochromis niloticus) represents an eco-friendly source of this compound, since its economical processing generates usable waste, reducing the negative environmental impact. This waste was used for CS extraction, purification, characterization by enzymatic degradation, and evaluation of its antioxidant effect. CS obtained from tilapia presented sulfation mainly at carbon 4 of galactosamine, and it was not cytotoxic at concentrations up to 200 µg/mL. Furthermore, 100 µg/mL of CS from tilapia reduced the levels of reactive oxygen species to 47% of the total intracellular reactive oxygen species level. The ability of CS to chelate metal ions in vitro also suggested an ability to react with other pathways that generate oxidative radicals, such as the Haber-Weiss reaction, acting intracellularly in more than one way. Although the role of CS from tilapia remains unclear, the pharmacological effects described herein indicate that CS is a potential molecule for further study of the relationship between the structures and functions of chondroitin sulfates as antioxidants.


Subject(s)
Antioxidants , Chondroitin Sulfates , Animals , Antioxidants/pharmacology , Fishes , Glycosaminoglycans , Reactive Oxygen Species
5.
Rev. bras. pesqui. méd. biol ; Braz. j. med. biol. res;54(10): e10730, 2021. graf
Article in English | LILACS | ID: biblio-1285651

ABSTRACT

Chondroitin sulfate (CS) is a type of glycosaminoglycan described as an antioxidant molecule that has been found in animal species such as fish. Tilapia (Oreochromis niloticus) represents an eco-friendly source of this compound, since its economical processing generates usable waste, reducing the negative environmental impact. This waste was used for CS extraction, purification, characterization by enzymatic degradation, and evaluation of its antioxidant effect. CS obtained from tilapia presented sulfation mainly at carbon 4 of galactosamine, and it was not cytotoxic at concentrations up to 200 µg/mL. Furthermore, 100 µg/mL of CS from tilapia reduced the levels of reactive oxygen species to 47% of the total intracellular reactive oxygen species level. The ability of CS to chelate metal ions in vitro also suggested an ability to react with other pathways that generate oxidative radicals, such as the Haber-Weiss reaction, acting intracellularly in more than one way. Although the role of CS from tilapia remains unclear, the pharmacological effects described herein indicate that CS is a potential molecule for further study of the relationship between the structures and functions of chondroitin sulfates as antioxidants.


Subject(s)
Animals , Chondroitin Sulfates , Antioxidants/pharmacology , Reactive Oxygen Species , Fishes , Glycosaminoglycans
6.
Arq. bras. med. vet. zootec. (Online) ; 72(2): 485-492, Mar./Apr. 2020. ilus
Article in Portuguese | VETINDEX | ID: vti-29632

ABSTRACT

Bradypus variegatus, espécie pertencente à família Bradypodidae e à superordem Xenarthra, pode ser considerada modelo biológico de caráter multidisciplinar. Assim, realizou-se um trabalho de descrição anatômica da artéria carótida externa (ACE) e dos seus ramos no bicho-preguiça B. variegatus. Utilizaram-se 10 animais adultos, sendo todos fêmeas, que foram submetidos à dissecação, constatando-se que a artéria (a.) carótida comum se bifurca, em externa e interna, no nível do primeiro anel traqueal. A ACE, então, segue estendendo-se até a maxila, onde emite ramos para a região temporal e para o polo posterior do olho. Em todos os animais estudados, foram observados sete ramos principais da ACE, que, segundo a sua origem e localização, foram denominados como a. auricular, a. lingual, a. facial, a. alveolar, a. inferior, a. temporal, a. maxilar e a. oftálmica. Os ramos maxilar e oftálmico correspondem aos terminais e os demais são ramos colaterais. Em 50% dos animais analisados, foi verificada a presença de anastomoses arteriais e 40% deles apresentaram o acréscimo de um ramo aos principais. Desses, 30% demonstraram a presença de um ramo traqueal e 10% de um ramo sublingual, sendo esses ramos colaterais.(AU)


Bradypus variegatus is a species belonging to the family Bradypodidae and superorder Xenarthra, which should be considered as a multidisciplinary biological model. Thus, an anatomical description of the external carotid artery (ACE) and its branches in sloth B. variegatus was studied. Ten adult animals, all of them female, were submitted to dissection, and it was observed that the common carotid artery (a.) bifurcates in external and internal at the level of the first tracheal ring. Then, ACE extends through the maxilla where it launches branches to the temporal region and posterior eye side. For all sampled animals, seven principal branches of ACE were observed, and according to their origin and location were denominated as auricular, lingual, facial, bottom alveolar, temporal, maxillary and ophthalmic arteries. The maxillary and ophthalmic branches correspond to the terminals and the other branches are collateral. Presence of arterial anastomoses was observed in 50% of the sampled animals and 40% of them had increase of a branch on the principal. In these, 30% had presence of one tracheal branch and 10% of a sublingual branch, considering these branches as collateral.(AU)


Subject(s)
Animals , Sloths/anatomy & histology , Carotid Artery, External/anatomy & histology , Xenarthra
7.
Arq. bras. med. vet. zootec. (Online) ; 72(2): 485-492, Mar./Apr. 2020. ilus
Article in Portuguese | LILACS, VETINDEX | ID: biblio-1128384

ABSTRACT

Bradypus variegatus, espécie pertencente à família Bradypodidae e à superordem Xenarthra, pode ser considerada modelo biológico de caráter multidisciplinar. Assim, realizou-se um trabalho de descrição anatômica da artéria carótida externa (ACE) e dos seus ramos no bicho-preguiça B. variegatus. Utilizaram-se 10 animais adultos, sendo todos fêmeas, que foram submetidos à dissecação, constatando-se que a artéria (a.) carótida comum se bifurca, em externa e interna, no nível do primeiro anel traqueal. A ACE, então, segue estendendo-se até a maxila, onde emite ramos para a região temporal e para o polo posterior do olho. Em todos os animais estudados, foram observados sete ramos principais da ACE, que, segundo a sua origem e localização, foram denominados como a. auricular, a. lingual, a. facial, a. alveolar, a. inferior, a. temporal, a. maxilar e a. oftálmica. Os ramos maxilar e oftálmico correspondem aos terminais e os demais são ramos colaterais. Em 50% dos animais analisados, foi verificada a presença de anastomoses arteriais e 40% deles apresentaram o acréscimo de um ramo aos principais. Desses, 30% demonstraram a presença de um ramo traqueal e 10% de um ramo sublingual, sendo esses ramos colaterais.(AU)


Bradypus variegatus is a species belonging to the family Bradypodidae and superorder Xenarthra, which should be considered as a multidisciplinary biological model. Thus, an anatomical description of the external carotid artery (ACE) and its branches in sloth B. variegatus was studied. Ten adult animals, all of them female, were submitted to dissection, and it was observed that the common carotid artery (a.) bifurcates in external and internal at the level of the first tracheal ring. Then, ACE extends through the maxilla where it launches branches to the temporal region and posterior eye side. For all sampled animals, seven principal branches of ACE were observed, and according to their origin and location were denominated as auricular, lingual, facial, bottom alveolar, temporal, maxillary and ophthalmic arteries. The maxillary and ophthalmic branches correspond to the terminals and the other branches are collateral. Presence of arterial anastomoses was observed in 50% of the sampled animals and 40% of them had increase of a branch on the principal. In these, 30% had presence of one tracheal branch and 10% of a sublingual branch, considering these branches as collateral.(AU)


Subject(s)
Animals , Sloths/anatomy & histology , Carotid Artery, External/anatomy & histology , Xenarthra
8.
Virus Genes ; 45(1): 190-4, 2012 Aug.
Article in English | MEDLINE | ID: mdl-22528644

ABSTRACT

Leaves of Cassia hoffmannseggii, a wild fabaceous species found in the Atlantic Forest, with a severe mosaic symptom were collected in Pernambuco State, Brazil. By transmission electron microscopy, two types of virus particles were found: the first was recognized as particles of a potyvirus, which was later identified as Cowpea aphid-borne mosaic virus; and the second was isometric and present in high concentration. The observation of vesicles at the periphery of chloroplasts suggested a tymovirus infection, which was confirmed by subsequent assays. A serological assay against several tymovirus antisera resulted in positive reaction of this tymo-like virus with an antiserum of Passion fruit yellow mosaic virus. By means of RT-PCR and using degenerated primers for the conserved region of RNA-dependent RNA polymerase (RdRp) gene of tymoviruses, a specific DNA fragment was amplified and sequenced. Based on this sequence, a specific forward primer was synthesized and successfully used to amplify the 3' terminal genome region, containing the partial RdRp gene and the complete coat protein (CP) sequences. The CP was 188 amino acids (aa) long, and the highest CP aa identity was observed with Kennedya yellow mosaic virus (61 %). Based on the current ICTV demarcation criterion, this isolate was considered as a distinct tymovirus and tentatively named as Cassia yellow mosaic-associated virus.


Subject(s)
Cassia/virology , Plant Diseases/virology , Plant Leaves/virology , Tymovirus/genetics , Brazil , Capsid Proteins/genetics , Cassia/classification , DNA Primers , Phylogeny , RNA, Viral/genetics , RNA-Dependent RNA Polymerase/genetics , Reverse Transcriptase Polymerase Chain Reaction , Sequence Analysis, DNA , Tymovirus/classification , Tymovirus/isolation & purification
9.
Arch Virol ; 151(9): 1797-809, 2006 Sep.
Article in English | MEDLINE | ID: mdl-16596328

ABSTRACT

Leaf samples of yellow passionfruit (Passiflora edulis f. flavicarpa) displaying fruit woodiness symptoms were collected in seven Brazilian states and the Federal District. Viral infection was confirmed by host range and ELISA, and fourteen viral isolates were obtained. All isolates were capable of infecting several leguminous host species, although differences in symptom severity were noticeable. Woodiness symptoms were reproduced in yellow passionfruit, and mosaic symptoms were induced in common bean. All isolates infected cowpea, reported as a non-host of passion fruit woodiness virus (PWV). Indirect ELISA demonstrated that all isolates were serologically related to each other and also to cowpea aphid-borne mosaic virus (CABMV). The complete sequence of the capsid protein was determined for all isolates. Comparison of these sequences with those of other potyviruses indicated the highest identity with CABMV isolates (85 to 94%). Identity with PWV isolates ranged from 54 to 70%. Phylogenetic analysis grouped all of the Brazilian isolates in a monophyletic cluster with the CABMV isolates, clearly distinct from the PWV isolates. Furthermore, this analysis demonstrated that a group of previously characterized isolates from Brazil that had been designated as PWV should be reclassified as CABMV. Together, these results provide unequivocal evidence that, in Brazil, passionfruit woodiness disease is primarily caused by CABMV. The presence of PWV in Brazil has yet to be confirmed.


Subject(s)
Passiflora/virology , Plant Diseases/virology , Potyvirus/isolation & purification , Brazil , Capsid Proteins/genetics , Enzyme-Linked Immunosorbent Assay , Fabaceae/virology , Molecular Sequence Data , Phylogeny , Plant Leaves/virology , Potyvirus/classification , Potyvirus/genetics , Sequence Analysis, DNA , Sequence Homology, Amino Acid
10.
Plant Dis ; 84(7): 760-766, 2000 Jul.
Article in English | MEDLINE | ID: mdl-30832105

ABSTRACT

Surveys of peanut crops in northeastern Brazil since 1995 showed the occurrence of a hitherto unreported virus disease. Characteristic leaf symptoms were ring spots and blotches. The virus was seed transmitted in peanut (1/610) and cowpea (47/796). Local and systemic symptoms were observed in cowpea (cv. TVu 3433) known to be susceptible to most Cowpea aphid-borne mosaic virus (CABMV) isolates. The virus was transmitted by aphids Toxoptera citricidus and Aphis gossypii. Using degenerate primers, the 3' terminal region of the viral genome was cloned and sequenced. Sequence analyses of the coat protein and the 3' untranslated region indicated that the potyvirus was most closely related to CABMV isolates from South Africa, Zimbabwe, and the United States. On the basis of genome analysis, the virus was identified as CABMV. The natural occurrence of CABMV on peanut has so far not been reported. The significance of this finding especially for germ plasm exchange is discussed.

11.
J Med Virol ; 49(3): 212-7, 1996 Jul.
Article in English | MEDLINE | ID: mdl-8818967

ABSTRACT

The age distribution of antibody to simian rotavirus (SA-11) was studied in serum specimens obtained from 399 children aged to 5 years and living in the city of Recife (PE), located in the north eastern region of Brazil. Sera were examined for group-specific rotavirus antibody using a blocking enzyme immunoassay (bELISA) and a hemagglutination inhibition antibody (HIA) test, and for anti-VP2, anti-VP4, anti-VP6, and anti-VP7 antibodies using an immunoblotting assay (IBA). Antibody prevalence was similar in all bELISA and HIA assays, showing a steep rise in the 6-to 17-month-old age groups. The results indicate early acquisition of antibody to rotavirus. The majority of children aged 2 to 4 years had bELISA (50% to 60%) and HIA (70% to 81%) antibodies. There was an association in prevalence data obtained by HIA and bELISA with immunoblotting (IBA), revealing four serologic profiles. Children with profiles I and II (60%) respectively had HAI and ELISA antibody or HAI antibody alone and all had immunoprotective antibodies to VP4 and/or VP7. These children were regarded as "immune," resembling convalescent patients with a rotavirus infection. Children with profile III (4%) had no HIA antibody and only non-protective anti-VP6 and/or VP7 antibody, and were considered to be "partially immune." Children with profile IV (36%) had no detectable antibody and were classified as "nonimmune." These children should be considered to be susceptible to rotavirus infection, with the risk of developing clinically severe diarrhea.


Subject(s)
Antibodies, Viral/blood , Antigens, Viral/immunology , Gastroenteritis/virology , Rotavirus Infections/virology , Rotavirus/isolation & purification , Antibodies, Viral/immunology , Antibody Formation , Brazil , Capsid/immunology , Capsid Proteins , Child, Preschool , Enzyme-Linked Immunosorbent Assay , Follow-Up Studies , Gastroenteritis/immunology , Hemagglutination Inhibition Tests , Humans , Immunoblotting , Infant , Infant, Newborn , Rotavirus/immunology , Rotavirus Infections/blood , Rotavirus Infections/immunology
12.
Microbiol Immunol ; 38(6): 475-8, 1994.
Article in English | MEDLINE | ID: mdl-7968679

ABSTRACT

The seroprevalence of human T cell leukemia virus type 1 (HTLV-1) infection was investigated in Brazilians (570): native inhabitants (298) and descendants from Japanese (272) living in Recife and its neighborhoods--North-east of Brazil. Furthermore, polytransfused renal transplanted patients (54) were also examined for the serological status to this virus. The seropositivity to HTLV-1, screened by enzyme-linked immunosorbent assay (ELISA), was low: 1.34% for the local population and 0.73% for the descendants from Japanese. However, the seropositivity for the renal transplanted patients was found to be 11.1%. This higher value suggests that this retrovirus infection seems to be of importance in this clinical condition.


Subject(s)
HTLV-I Antibodies/analysis , HTLV-I Infections/immunology , Kidney Transplantation/immunology , Adolescent , Adult , Aged , Brazil/epidemiology , Child , Child, Preschool , Enzyme-Linked Immunosorbent Assay , Female , HTLV-I Infections/epidemiology , Humans , Immunoglobulin G/analysis , Infant , Infant, Newborn , Male , Middle Aged , Prevalence
13.
Braz J Med Biol Res ; 26(7): 735-9, 1993 Jul.
Article in English | MEDLINE | ID: mdl-8268822

ABSTRACT

The seroprevalence of antibodies against cytomegalovirus (CMV), human herpesvirus 6 (HHV-6) and human T cell leukemia virus type 1 (HTLV-1), determined by ELISA and by fluorescence in 54 renal transplanted patients, was 96.2%, 88.8% and 11.1%, respectively. These values are relatively high when compared with the results obtained for healthy individuals of the same age groups from Recife, Northeastern Brazil. Active CMV infection was detected by the presence of IgM antibodies and/or virus isolation in 13 (24%) patients. Kidney rejection and renal dysfunction were observed in 11 of these 13 patients, whereas 3 of 6 HTLV-1 antibody-positive individuals presented these complications. All HTLV-1 positive patients were also positive to IgG CMV and HHV-6 antibodies. The importance of the three viruses in this clinical condition is suggested by the high seropositivity rates compared with the healthy population. The group may also represent a potential source of HTLV-1 infection in this non-endemic area.


Subject(s)
Cytomegalovirus Infections/epidemiology , HTLV-I Infections/epidemiology , Herpesviridae Infections/epidemiology , Herpesvirus 6, Human/isolation & purification , Kidney Transplantation , Adolescent , Adult , Antibodies, Viral/blood , Brazil/epidemiology , Enzyme-Linked Immunosorbent Assay , Fluorescent Antibody Technique , Herpesvirus 6, Human/immunology , Humans , Middle Aged , Prevalence
14.
Rev. bras. pesqui. méd. biol ; Braz. j. med. biol. res;26(7): 735-9, Jul. 1993. tab
Article in English | LILACS | ID: lil-148727

ABSTRACT

The seroprevalence of antibodies against cytomegalovirus (CMV), human herpesvirus 6 (HHV-6) and human T cell leukemia virus type 1 (HTLV-1), determined by ELISA and by fluorescence in 54 renal transplanted patients, was 96.2 per cent , 88.8 per cent and 11.1 per cent , respectively. These values are relatively high when compared with the results obtained for healthy individuals of the same age groups from Recife, Northeastern Brazil. Active CMV infection was detected by the presence of IgM antibodies and/or virus isolation in 13 (24 per cent ) patients. Kidney rejection and renal dysfunction were observed in 11 of these 13 patients, whereas 3 of 6 HTLV-1 antibody-positive individuals presented these complications. All HTLV-1 positive patients were also positive to IgG CMV and HHV-6 antibodies. The importance of the three viruses in this clinical condition is suggested by the high seropositivity rates compared with the healthy population. The group may also represent a potential source of HTLV-1 infection in this non-endemic area


Subject(s)
Humans , Adolescent , Adult , Middle Aged , Cytomegalovirus Infections/epidemiology , Herpesvirus 6, Human/isolation & purification , Herpesviridae Infections/epidemiology , HTLV-I Infections/epidemiology , Kidney Transplantation , Antibodies, Viral/blood , Brazil/epidemiology , Enzyme-Linked Immunosorbent Assay , Fluorescent Antibody Technique , Herpesvirus 6, Human/immunology , Prevalence
15.
Rev. IMIP ; 4(1): 23-8, jun. 1990. tab
Article in Portuguese | LILACS | ID: lil-125198

ABSTRACT

Entre fevereiro e junho de 1989, investigaram-se 126 crianças diarréicas e 126 controles, pareados pela idade, para a detecçäo de bactérias, vírus e parasitos enteropatogênicos. Identificaram-se um ou mais patógenos em 81,8% dos pacientes e em 61,9% dos controles. Escherichia coli enteropatogênica(EPEC) foi o patógeno mais frequentemente identificado. EPEC mostrando aderência localizada, E.coli enteroaderente agregativa, Shigella, Rotavírus e Cryptosporidium foram associados com os casos significativamente. Por outra parte, EPEC näo aderente, E.Coli exibindo aderência difusa, E.coli enterotoxigênica (ETEC) produtora de LT, Salmonella, Campylobacter, Adenovírus, Giardia lamblia e Endamoeba histolytica näo mostraram diferenças significativas entre casos e controles. ETEC produtoras de ST,E.coli enteroinvasiva e enterohemorrágica, Aeromonas, Pleisaomonas e Vibrio foram isolados em taxas muito baixas para permitir avaliar seus papéis na doenças diarréica, no Recife


Subject(s)
Infant, Newborn , Infant , Diarrhea, Infantile/microbiology , Enterobacteriaceae Infections
17.
Rev Saude Publica ; 23(4): 277-84, 1989 Aug.
Article in Portuguese | MEDLINE | ID: mdl-2631181

ABSTRACT

One hundred and twelve asymptomatic individuals were analysed with regard to the simultaneous incidence of Staphylococcus aureus on their hands and in their nose, mouth and stools, in the city of S. Paulo (Brazil). A total of 40 (35.7%) individuals were detected as carriers of this microorganism. Among these carriers, 27 (67.5%) were positive in only one of the four niches studied, 8 (20.0%) in two and 5 (12.5%) in three niches. They were identified 113 Staphylococcus aureus strains, and 28 (24.8%) of these strains, isolated from 9 (22.5%) carriers, produced enterotoxin. Of these strains, 7 (25.0%) produced type A enterotoxin, 6 (21.4%) of type B, 11 (39.3%) type C and 4 (14.3%) produced both type A and C. The phage typing of the 113 Staphylococcus aureus strains revealed the predominance of the strains lysed by phages belonging to the Group I/III/NC (16.8%). The results obtained did not demonstrate the simultaneous incidence of Staphylococcus aureus strains in samples collected from mouth, hands and stools of the group studied.


Subject(s)
Carrier State/microbiology , Staphylococcus aureus/isolation & purification , Enterotoxins/analysis , Feces/microbiology , Hand/microbiology , Humans , Mouth Mucosa/microbiology , Serotyping , Staphylococcus aureus/analysis , Staphylococcus aureus/classification
18.
Microbiol Immunol ; 33(11): 975-80, 1989.
Article in English | MEDLINE | ID: mdl-2556629

ABSTRACT

The serological status to cytomegalovirus (CMV) was examined for 616 Brazilians and 399 Japanese immigrants living in the North-East of Brazil. The sera were screened for IgG antibodies to CMV by enzyme-linked immunosorbent assay (ELISA). The overall prevalence of CMV antibodies was higher in the Japanese population (83.7%) than in the Brazilian population (69.8%). The seropositivity was analyzed by factors of age, sex, ethnic background, and socioeconomic status. Mother-baby contact seems to be a factor of significance in the seroepidemiology of CMV infection.


Subject(s)
Antibodies, Viral/analysis , Cytomegalovirus Infections/epidemiology , Cytomegalovirus/immunology , Adolescent , Adult , Age Factors , Aged , Brazil , Child , Child, Preschool , Female , Humans , Immunoglobulin G/analysis , Infant , Japan/ethnology , Male , Middle Aged , Seroepidemiologic Studies , Sex Factors , Socioeconomic Factors
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