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Evaluation of TV cell line viral susceptibility using conventional cell culture techniques

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Bleotu C. , Diaconu C. , Chivu M. , Alexiu I. , Ruta S. , Cernescu C.

Open Medicine

2006

tom 1

nr 1

12-22

Despite the fact that a lot of methods have been developed for rapid virus detection, classic cell culture is still “the golden standard”. The range of viruses that can be isolated and cultured in cell line systems is often limited by the susceptibility of cells to support viral replication. Since the primary cell culture, the best cellular system available to support replication of a large number of viruses, is very expensive and diffcult to obtain, cell lines, which are easier to manipulate, are commonly used for virus growth and isolation. In two previous papers we described the TV cell line initiated by our team from a laryngeal tumor, which harbors human papillomavirus (HPV) gene sequences. In this paper we analyze its capacity to support virus replication. Depending on the virus, different cytopathic effects were produced. Comparison of viral effect observed on this cell line with the effect obtained on other cell lines has been performed. This cell line might be used in the clinical virology laboratory for virus isolation.

Hepatitis C virus genotypes in injecting drug users from Romania

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Sultana C. , Vagu C. , Temereanca A. , Grancea C. , Slobozeanu J. , Ruta S.

Open Medicine

2011

tom 6

nr 5

672-678

Due to the increasing number of infections related to injecting drug use, both the pattern of hepatitis C virus (HCV) transmission, and the circulating genotypes in Europe have changed. As there are little available data in this respect for Romania, the aim of our study was a preliminary analysis of the distribution of HCV genotypes circulating among injecting drug users (IDUs). Of the 45 IDUs evaluated (86.7% men, mean age − 27.6 ± 3.7 years, mean age at first drug use − 17.5 ± 3.9 years), 88.9% presented anti-HCV antibodies, with higher rates in those with an injecting history of more than 10 years; 57.8% of the subjects had detectable HCV viral load. Only 6.7% had markers of chronic hepatitis B infection, and none had anti-HIV antibodies. While HCV subtype 1b is still prevalent (in 50% of the viraemic subjects), other subtypes begin to emerge, especially in younger patients (1a - in 23.1%, 4 - in 11.5%, 3a - in 7.7% of the cases). These data indicate the possibility of major shifts in the distribution of the dominant subtype, underlining the need for close surveillance of HCV infections in IDUs, who can act as a bridging group toward the general population.