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1.
Saude e pesqui. (Impr.) ; 13(2): 389-397, abr.-jun. 2020. tab
Article in Portuguese | LILACS | ID: biblio-1116222

ABSTRACT

Estudo exploratório para verificar a utilização da colostroterapia em recém-nascidos de muito baixo peso, em unidade neonatal de maternidade de médio porte, por meio da avaliação de prontuários. Dos 108 prontuários avaliados, 56,5% dos neonatos eram do sexo feminino, com média de peso e idade gestacional ao nascimento de 1091,9 g (DP=263,7g) e 29 semanas/2dias (DP=2semanas/6dias), respectivamente. A colostroterapia foi utilizada em 25,9% dos pacientes, sendo que em 96,4% dos casos a administração foi por via oral. O uso de terapia colostral foi associado significativamente a variáveis neonatais como idade gestacional, peso ao nascer e óbito neonatal (p = 0,001, p < 0,001, e p < 0,001). Não havendo protocolo estabelecido para guiar a prescrição da colostroterapia, esta ocorreu principalmente para prematuros de menor peso, mais imaturos ou mais doentes, com maior risco de morbidade e mortalidade.


Exploratory study of colostrum therapy use in very low birth weight newborns in a neonatal unit by the analysis of medical records. The 108 patients under study were predominantly female (56,5%), had a mean weight and gestational age at birth of 1091.9 g (SD=263.7g) and 29 weeks/2 days (SD=2 weeks/6 days), respectively. Colostrum therapy was used for 29.5% of the patients mostly by oral administration (96.4%). The use of colostrum therapy was significantly associated with low gestational age and weight at birth and with neonatal death (p = 0.001, p < 0.001 and p < 0.001). As there was no established protocol to guide colostrum therapy prescription in the neonatal unit, the therapy was apparently chosen to be used for more immature or sicker babies, with a greater morbidity or mortality risk.


Subject(s)
Humans , Male , Female , Infant, Newborn , Infant, Low Birth Weight , Infant, Premature , Colostrum
2.
Rev. etol. (Online) ; 13(1): 37-46, jun. 2014. ilus, tab
Article in English | LILACS | ID: lil-772589

ABSTRACT

The black tufted-ear marmoset (Callithrix penicillata) is a small Neotropical primate, which lives in various types of environments from Cerrado (Brazilian savannah), Atlantic forest to urban areas. Research shows that food availability influences home range size, group size, population density and the behaviour of marmoset groups in the wild. The objective of this study was to investigate the behaviour of C. penicillata in an urbanized habitat, and the influence of (estimated) food availability on home range size, group size and population density. This study was performed through direct behavioural observation (84 hours) on four wild groups of marmosets living within the grounds of Belo Horizonte Zoological garden, Minas Gerais, Brazil. The results show that, despite living in an urban habitat, these marmosets presented home range size (2.85ha), group size (mean=5.7 ind.) and population density (2.19 ind/ha) values in the range found in wild-living conspecifics. The animals studied spent a considerable percentage of their time travelling (22.45%); resting (16.58%), inactive alert (14.95%) and feeding (6.74%). These results showed that behavioural activity repertoires were also found to be similar to wild-living conspecifics and therefore demonstrate the species adaptation capacity in urban environment.


O mico-estrela (Callithrix penicillata) é uma pequena espécie de primata neotropical que vive em vários tipos de ambientes como Cerrado e Mata Atlântica, podendo também ocupar áreas urbanas. Pesquisas já mostraram que a disponibilidade de recurso alimentar afeta a área de vida, o tamanho de grupo e o comportamento da espécie na natureza. Os objetivos deste estudo foram investigar o comportamento do mico-estrela em um ambiente urbanizado e a influência de recurso alimentar (estimado) na área de vida e na densidade populacional. O estudo foi realizado por meio de observações diretas (84 horas) com quatro grupos de mico-estrela vivendo nas dependências do zoológico de Belo Horizonte, Minas Gerais, Brasil. Os resultados mostraram que apesar de viverem em ambiente urbano, estes micos tem áreas de vida (2,85ha), tamanhos dos grupos (média=5,7 indivíduos) e densidades populacionais (2,19 ind/ha) parecidos com os valores obtidos para a espécie nativa. Os animais estudados, passaram a maior parte do dia se deslocando (22,45%), descansando (16,58%), inativos alertas (14,95%) e alimentando-se (6,74%). Estes resultados mostram que o padrão de atividade e o repertório comportamental exibidos pelos animais deste estudo são similares aos apresentados na natureza e portanto, evidenciam a capacidade de adaptação da espécie em ambientes antrópicos.


Subject(s)
Animals , Behavior, Animal , Callitrichinae , Ecology , Urbanization
3.
Sci. med ; 24(1): 73-78, jan-mar/2014. graf
Article in Portuguese | LILACS | ID: lil-729178

ABSTRACT

Objetivos: Avaliar a atividade anti-Trichomonas vaginalis do extrato de folhas de videira (Vitis labrusca) provenientes de cultivo convencional e orgânico.Métodos: Extratos de folhas secas de videira, orgânico e convencional, foram elaborados com extrator Sohxlet. A composição fenólica total dos extratos foi avaliada por Folin-Cicoalteau e Cromatografia Líquida de Alta Eficiência. A atividade antiparasitária dos extratos foi realizada em cultura de T. vaginalis. Os testes foram realizados em três concentrações finais: 5, 10 e 20 mg/mL. Os trofozoítos foram contados em hemocitômetro e sua densidade foi ajustada em meio de cultura Trypticase-Yeast Extract-Maltose (TYM), de forma a se obter a concentração final de 1×105 trofozoítos/mL. Após incubação com os extratos por 24 horas a 37°C, foi feita a contagem dos trofozoítos com motilidade em hemocitômetro. Os controles do veículo foram realizados, adicionando-se água em substituição aos extratos.Resultados: O extrato de folhas convencionais é rico em catequina e os orgânicos, em resveratrol. Os extratos de V. labrusca não apresentaram atividade anti-T. vaginalis nas concentrações de 5 e 10 mg/mL. Entretanto na concentração de 20 mg/L, o extrato de folhas secas convencionais reduziu em 100% e o extrato orgânico em 48% a sobrevivência dos trofozoítos. Os polifenóis catequina, quercetina e rutina estavam em maior concentração no extrato com maior eficácia, os quais podem ser os responsáveis pela ação anti-T. vaginalis do extrato convencional.Conclusões: O extrato de folha de videira pode ser uma alternativa no combate a T. vaginalis. Estudos pré-clínicos e clínicos são necessários para comprovar eficácia e segurança desta intervenção...


AIMS: To evaluate the anti-Trichomonas vaginalis activity of the extract of organic and conventional leaves of Vitis labrusca.METHODS: Organic and conventional grapevine leaf extracts were prepared with extractor Sohxlet. The total phenolic extracts were evaluated by Folin-Cicoalteau and High-Performace Liquid Chromatography. The antiparasitic activity of the extracts was performed on growth of T. vaginalis. Tests were conducted at three final concentrations of 5, 10 and 20 mg/mL. The trophozoites were counted by hemocytometer and their density was adjusted in Trypticase-Yeast Extract-Maltose (TYM) growth environment in order to obtain a final concentration of 1x105 trophozoites/ml. After incubated with the extracts for 24 hours at 37 �C, the count of motile trophozoites was taken by hemocytometer. The vehicle controls were performed by substituting the extract by water.RESULTS: The conventional leaf extract is rich in catechin and the organic in resveratrol. The extracts of V. labrusca showed no anti-T.vaginalis activity at concentrations of 5 and 10 mg/mL. However in the concentration of 20 mg/L conventional grapevine leaf extracts reduced by 100% and the organic extract by 48% the survival of trophozoites. Catechin polyphenols, quercetin and rutin were in higher concentration in the extract with greater efficacy, which may be the responsible for the anti-T. vaginalis action of the conventional extract.CONCLUSIONS: The vine leaf extract may be an alternative to combat T. vaginalis. Pre-clinical and clinical studies are needed to confirm efficacy and safety of this intervention...


Subject(s)
Humans , Antitrichomonal Agents , Phenolic Compounds , Infections , Trichomonas vaginalis , Trichomonas Infections , Vitis
4.
Braz. j. microbiol ; 44(1): 133-137, 2013. tab
Article in English | LILACS | ID: lil-676895

ABSTRACT

The objective of this study was to detect C. difficileA/B toxins and to isolate strains of C. perfringensand C. difficile from diarrheic and non-diarrheic dogs in Brazil. Stool samples were collected from 57 dogs, 35 of which were apparently healthy, and 22 of which were diarrheic. C. difficileA/B toxins were detected by ELISA, and C. perfringensand C. difficilewere identified by multiplex PCR. C. difficileA/B toxins were detected in 21 samples (36.8%). Of these, 16 (76.2%) were from diarrheic dogs, and five (23.8%) were from non-diarrheic dogs. Twelve C. difficile strains (21.1%) were isolated, of which ten were A+B+and two were A-B-. All non-toxigenic strains were isolated from non-diarrheic animals. The binary toxin gene cdtBwas found in one strain, which was A+B+and was derived from a non-diarrheic dog. C. perfringensstrains were isolated from 40 samples (70.2%). Of these, 18 (45%) were from the diarrheic group, and 22 (55%) belonged to the non-diarrheic group. All isolates were classified as C. perfringenstype A and there was an association between the detection of the cpegene and the presence of diarrhea. Interestingly, ten strains (25%) were positive for the presence of the cpb2gene. The high rate of detection of the A/B toxins in non-diarrheic dogs suggests the occurrence of subclinical disease in dogs or carriage of its toxins without disease. More studies are needed to elucidate the epidemiology of C. difficileand C. perfringensin dogs and to better our understanding of C. difficileas a zoonotic agent. This is the first study to report the binary toxin gene in C. difficilestrains isolated from dogs in Brazil.


Subject(s)
Animals , Dogs , Clinical Laboratory Techniques , Clostridium perfringens , Clostridioides difficile/genetics , Clostridioides difficile/isolation & purification , Diarrhea/genetics , Enterocolitis, Pseudomembranous , Fecal Impaction/genetics , Polymerase Chain Reaction , Bacterial Toxins/genetics , Bacterial Toxins/isolation & purification , Diagnosis , Immunoassay , Methods , Spores, Bacterial , Virulence
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