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EBV and HHV-6B but no CMV found in astrocytomas by digital droplet PCR

A group from the National Institute of Neurological Disorders and Stroke, NIH, has reported finding Epstein-Barr Virus (EBV) and HHV-6 but no cytomegalovirus (CMV) in astrocytomas, a brain tumor comprising approximately one quarter of all gliomas diagnosed. The group used digital droplet PCR (ddPCR), a technique that is highly precise but less sensitive than nested PCR and immunohistochemistry, techniques that have been used in previous studies.

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High prevalence of HHV-6B & HPV in invasive pituitary adenomas

A recent study from investigators at Chongqing University in China explored the involvement of three viruses in the progression of pituitary adenomas (PA). The authors suggest that the HPV-16 and HHV-6 viruses activate the TLR3/ NF-kB signaling pathway which in turn contributes to the progression and proliferation of invasive pituitary adenomas.