Biosimilars: a position paper of the European Society for Medical Oncology, with particular reference to oncology prescribers.

Biosimilars present a necessary and timely opportunity for physicians, patients and healthcare systems. If suitably developed clinically, manufactured to the correct standards and used appropriately, they can positively impact on the financial sustainability of healthcare systems. A critical consideration regarding the introduction of biosimilars into the clinic centres on the required information concerning all the respective procedures. This position paper aims to describe the issues revolving around biosimilars that are relevant to the field of oncology, especially the prescribers. More specifically, we discuss aspects related to definition, forms of biosimilars, labelling, extrapolation, interchangeability, switching, automatic substitution, clinical standards on safety and efficacy, responsibilities among prescribers and pharmacists, potential impact on financial burden in healthcare and the current scenario and future prospects of biosimilars in Europe and the rest of the world

Ring test evaluation of the detection of influenza A virus in swine oral fluids by real-time reverse-transcription polymerase chain reaction and virus isolation

The probability of detecting influenza A virus (IAV) in oral fluid (OF) specimens was calculated for each of 13 assays based on real-time reverse-transcription polymerase chain reaction (rRT-PCR) and 7 assays based on virus isolation (VI). The OF specimens were inoculated with H1N1 or H3N2 IAV and serially diluted 10-fold (10(-1) to 10(-8)). Eight participating laboratories received 180 randomized OF samples (10 replicates × 8 dilutions × 2 IAV subtypes plus 20 IAV-negative samples) and performed the rRT-PCR and VI procedure(s) of their choice. Analysis of the results with a mixed-effect logistic-regression model identified dilution and assay as variables significant (P \u3c 0.0001) for IAV detection in OF by rRT-PCR or VI. Virus subtype was not significant for IAV detection by either rRT-PCR (P = 0.457) or VI (P = 0.101). For rRT-PCR the cycle threshold (Ct) values increased consistently with dilution but varied widely. Therefore, it was not possible to predict VI success on the basis of Ct values. The success of VI was inversely related to the dilution of the sample; the assay was generally unsuccessful at lower virus concentrations. Successful swine health monitoring and disease surveillance require assays with consistent performance, but significant differences in reproducibility were observed among the assays evaluated

Os Momentos de transição nas rotinas de creche e de jardim de infância

Relatório do Projeto de Investigação Mestrado em Educação Pré-Escolar Versão Definitiva JaneiroO presente Relatório do Projeto de Investigação representa um estudo transversal alicerçado nas vivências ocorridas nos contextos de estágio, por outras palavras, no estágio em Creche e o no estágio em Jardim de Infância, no âmbito do Mestrado em Educação Pré-Escolar. No estudo participaram as duas Educadoras Cooperantes e os respetivos grupos de crianças. A temática em estudo consiste nos Momentos de Transição, isto é, os momentos em que as crianças transitam de uma atividade para a seguinte, e a metodologia que se considera mais apropriada ao estudo empírico posiciona-se na abordagem da investigação-ação. O método de recolha de informação baseia-se na observação participante, nas notas de campo e na análise documental, sendo complementada com inquéritos por questionário apresentados às Educadoras Cooperantes. Em jeito de complementaridade, articulam-se as experiências vivenciadas nos contextos. Este Projeto de Investigação tem como intencionalidade, refletir acerca da relação existente entre as conceções das Educadoras Cooperantes e as suas práticas pedagógicas, bem como, implementar melhorias, nas salas dos contextos de estágio, no que diz respeito à gestão dos momentos de transição. A partir desta investigação, é possível compreender que os momentos de transição são, de facto, valorizados nas conceções das Educadoras Cooperantes como momentos que requerem atenção e planeamento, porém efetivamente nem sempre a intervenção é congruente com o que defendem.This Report of the Investigation Project represents a cross-sectional study based on experiences that occured in the two internships - on nursery and on kindergarten. The two Cooperating Educators and their respective groups of children had participated in the study. The theme under study consist in the Moments of Transition, that is, the moments when the children move from one activity to the next one, and the methodology which is considered more appropriated to the empirical study is positioned in the action-research approach. The collecting information method is based on participant observation, field notes and document analysis, being complemented with questionnaire surveys presented to the Cooperating Educators. In a way of complementarity, the experiences lived in the contexts are articulated. This Investigation Project intends to reflect about the relationship between the Cooperating Educators concepts and their practices, it also intends to implement improvements in the rooms of the internship contexts, when it comes to the management of transition moments. From this investigation, it is possible to understand that transition moments are, in fact, valued in the Cooperative Educators conceptions as moments that require attention and planning, however, the intervention is not always consistent with what they defend

Molecular biology of cantharidin in cancer cells

Herbal medicine is one of the forms of traditional medical practice. Traditional Chinese medicine (TCM) and traditional Vietnamese medicine (TVM) are well-known for their long-standing tradition of herbal medicine. Secreted by many species of blister beetle, most notably by the 'Spanish fly' (Lytta vesicatoria), cantharidin inhibits protein phosphatases 1 and 2A (PP1, PP2A). Blister beetle has been used in Asian traditional medicine to treat Molluscum contagiosum virus (MCV) infections and associated warts, and is now also used for cancer treatment. A combination of both genomic and postgenomic techniques was used in our studies to identify candidate genes affecting sensitivity or resistance to cantharidin. Cantharidin was not found to be related to multidrug resistance phenotype, suggesting its potential usefulness for the treatment of refractory tumors. Oxidative stress response genes diminish the activity of cantharidin by inducing DNA strand breaks which may be subject to base excision repair and induce apoptosis in a p53- and Bcl2-dependent manner. Cantharidin is one of many natural products used in traditional Chinese medicine and traditional Vietnamese medicine for cancer treatment. Combined methods of pharmaceutical biology and molecular biology can help elucidate modes of action of these natural products

Detection of Foot-and-Mouth Disease Virus in Swine Meat Juice

Foot-and-mouth disease virus (FMDV) is a highly contagious agent that impacts livestock industries worldwide, leading to significant financial loss. Its impact can be avoided or minimized if the virus is detected early. FMDV detection relies on vesicular fluid, epithelial tags, swabs, serum, and other sample types from live animals. These samples might not always be available, necessitating the use of alternative sample types. Meat juice (MJ), collected after freeze-thaw cycles of skeletal muscle, is a potential sample type for FMDV detection, especially when meat is illegally imported. We have performed experiments to evaluate the suitability of MJ for FMDV detection. MJ was collected from pigs that were experimentally infected with FMDV. Ribonucleic acid (RNA) was extracted from MJ, sera, oral swabs, and lymph nodes from the same animals and tested for FMDV by real-time reverse transcription polymerase chain reaction (rRT-PCR). MJ was also tested for FMDV antigen by Lateral Flow Immunoassay (LFI). FMDV RNA was detected in MJ by rRT-PCR starting at one day post infection (DPI) and as late as 21 DPI. In contrast, FMDV RNA was detected in sera at 1–7 DPI. Antigen was also detected in MJ at 1–9 DPI by LFI. Live virus was not isolated directly from MJ, but was recovered from the viral genome by transfection into susceptible cells. The data show that MJ is a good sample type for FMDV detection