The effect of n-acetylcysteine on hepatic histomorphology during hypothermic preservation

PURPOSE: To evaluate the NAC effects on liver hypothermic preservation at different time intervals. METHODS: For this, we used livers of male Wistar rats weighing between 250 and 300g, undergoing preservation in Ringer solution at 4°C for up to 24 hours. Tissue samples were obtained at four moments of preservation for histological examination by hematoxylin and eosin staining: T0 = beginning of preservation, T12 = 12 hours, T18 = 18 hours and T24 = 24 hours. Will be analyzed vacuolation, hepatic apoptosis by optical microscopy and parenchymal. RESULTS: The results showed a progressive increase in hepatic injury in both groups and showed that NAC was effective at T0. The parenchyma preservation was better in the NAC group and no difference when vacuolization of the cells. CONCLUSION: Hypothermic preservation, over time, causes changes in the hepatic parenchyma with increased apoptosis, loss of architecture, vacuolization, culminating in severe injury. The administration of N-acetylcysteine protects against preservation liver injury. .

Taxas de incidência em mulheres com aids no Pará entre os anos 1999 a 2009 e suas relações com faixa etária, densidade e mobilidade demográfica / Incidence rates of aids in women of Pará (Brasil) between 1999 and 2009 and their relation with age, demographic density and populational mobility

Objetivo: este estudo objetivou o seguinte: 1) avaliar a taxa de incidência em mulheres comAIDS no Estado do Pará e no Brasil entre os anos de 1999 a 2009; 2) avaliar no Estado do Pará,se há relação da taxa de incidência com faixa etária, densidade e mobilidade demográfica.Método:1) avaliou-se a taxa de incidência em mulheres com AIDS no Estado do Pará duranteos anos de 1999 a 2009, comparando-as com as taxas brasileiras, de acordo com faixas etárias;2) correlacionou-se a taxa de incidência no Estado com a densidade demográfica, taxa demobilidade populacional e faixa etária. Resultados: as taxas de incidência no Pará forammenores que as do Brasil e revelaram tendência de crescimento ao longo doas anos, enquantoque as taxas de incidência no Brasil permaneceram estáveis durante os últimos sete anos. O picomodal da incidência no Pará foi entre 30 a 39 anos, menor do que o pico modal nacional (40 a49 anos). Além do mais, as taxas de incidência não se correlacionaram com a densidadedemográfica, porém correlacionaram-se com a mobilidade populacional. As mais elevadas taxasde incidência foram encontradas nas regiões Sudeste, Sudoeste e Baixo Amazonas,provavelmente, devido à maior taxa de mobilidade que estas regiões apresentam. Conclusão: asmulheres com faixas etárias mais avançadas são merecedoras em especial de campanhas deprevenção e diagnóstico de HIV/AIDS, visto que a taxa de incidência em mulheres nesta faixaetária tende ao crescimento ao longo dos anos

Objective: the present study aimed to i) evaluate the incidence rate of AIDS in women in theState of Pará and in Brazil in years 1999 to 2009, ii) evaluate in the State of Pará if theincidence rate is related to demographic density, mobility rate and age. Methodology: this studyi) evaluated the incidence rate of AIDS in women in the State of Pará in years 1999-2009,comparing it with the Brazilian rates, according to age; ii) correlated the incidence rate in Paráwith demographic density, mobility rate and age. Results: the incidence rates in Pará werelower than the Brazilian ones and showed a trend to increase with the time, while the Brazilianincidence rates remained stable over the last seven years. The modal peak of incidence in Paráwas between 30 and 39 years, lower than the national modal peak (40 to 49 years). Moreover,the incidence rates did not correlate with demographic density but correlated with populationalmobility. The highest incidence rates were observed in Southeast, Southwest and BaixoAmazonas Mesoregions, probably due to their higher populational mobility. Conclusion:advanced aged women deserve more intensive prevention programs and HIV/AIDS diagnostic,since the incidence rate in these women tends to increase over the years