The third X-inactivation meeting 'Fifty years of X-inactivation research', which celebrated the fiftieth anniversary of Mary Lyon's formulation of the X-inactivation hypothesis, was an EMBO workshop held in Oxford, UK, in July 2011. This conference brought together the usual suspects from the field, as well as younger researchers, to discuss recent advances in X-inactivation research. Here, we ...

Background and Aims: Despite the screening of blood donors, blood transfusion represents an ideal port of entry for blood-borne infection. Blood-borne pathogen transmission has been a concern since the earliest days of transfusion. The blood product of platelet (PLT) concentrates is still faced with the risk of bacterial and viral contaminations. Pathogen inactivation technologies offer a proac...

An invitro study was conducted to investigate the antiviral properties of silver nanoparticles synthesized from fungal strain Aspergillus sps isolated from soil. The isolated and characterized silver nanoparticles exhibited as an excellent antiviral property on Bacteriophage viral strain. The viral inactivation process was increased with increasing the concentration of silver nanoparticles.

Background and Aims: Despite the screening of blood donors, blood transfusion represents an ideal port of entry for blood-borne infection. Blood-borne pathogen transmission has been a concern since the earliest days of transfusion. The blood product of platelet (PLT) concentrates is still faced with the risk of bacterial and viral contaminations. Pathogen inactivation technologies offer a proac...

BACKGROUND In 2016 the World Health Organization declared the mosquito-borne Zika virus (ZIKV) a "public health emergency of international concern." ZIKV is a blood-borne pathogen, which therefore causes concerns regarding the safety of human plasma-derived products due to potential contamination of the blood supply. This study investigated the effectiveness of viral inactivation steps used dur...

Ref: Retrospective Evaluation of Low-pH Viral Inactivation and Viral Filtration Data from a Multiple Company Collaboration John Mattila, Mike Clark, Shengjiang Liu, et al. PDA J Pharm Sci and Tech 2016, 70 293-299
Access the most recent version at doi:10.5731/pdajpst.2016.006478 Due to a mathematical error we would like to submit an erratum for figure 6 p298.

background and objective: there is a concern on safety of human fresh frozen plasma (ffp) as it is a source of some medicinal products. the possibility of transmission of blood-borne are reported often due to emerging viruses. there are some pathogen reduction technologies (prt) to inactivate viruses. methylene blue (mb) based method is one of them. the aim of this study was to examine new desi...

Virus inactivation and virus adsorption, resulting from interactions with minerals, constitute important aspects of an aquifers disinfection capacity. Investigations using a 20 cm column filled with medium-grained natural sands demonstrated that the sands can attenuate up to 62% of a pulse of viruses injected. Experiments using repeatedly washed sands had significantly lower attenuation capacit...

In Drosophila melanogaster, there is an excess of genes duplicated by retroposition from the X chromosome to the autosomes. Most of those retrogenes that originated on the X chromosome have testis expression pattern. These observations could be explained by natural selection favoring genes that avoided spermatogenesis X inactivation or by sexual antagonistic effects favoring the fixation of mal...

Treatment with solvent/detergent is a widely used method for ensuring the virus safety of plasma products. In the present study, virus inactivation by a novel solvent/detergent combination, i.e. TnBP (tri-n-butyl phosphate) and polysorbate 20 during the manufacture of the factor VIII/VWF concentrate Optivate has been investigated. The inactivation of most enveloped viruses was rapid, i.e. > 5 l...