Formalin is the fixative used most often for newly-obtained specimens as well as in archived paraffin blocks. Ever wonder how it works?
Each year millions of people are infected by bacteria that are resistant to antibiotics. Addressing this crisis is critical, and each discovery of new classes of antibiotics is an important step in overcoming the challenge of antibiotic resistance.
Immunohistochemistry (IHC) is an effective microscopy-based technique for visualizing cellular components in tissue samples, and although IHC images are fascinating and tremendously informative, the art of creating useful IHC images requires attention to several important factors and awareness of potential problems. Here are some troubleshooting tips to help with achieving crisp, clean IHC images free of background staining and non-specific antibody binding.
QED Bioscience, US distributor of MIKROGEN infectious disease research test kits, is pleased to present their latest products, recomLine Tropical Fever IgG and recomLine Tropical Fever IgM. These immunoblot assays make it possible to simultaneously detect and differentiate antibodies to Dengue, Chikungunya, and Zika virus with recombinant NS1 and E1 proteins on easy-to-use test strips.
Superantigens are a class of antigens that cause non-specific activation of T-cells and may have evolved as defense mechanisms of some pathogens against host immune responses. Responses to superantigens include polyclonal T-cell activation and massive release of cytokines, primarily interferon gamma. High levels of interferon gamma activate macrophages which produce proinflammatory cytokines such as IL-1, IL-6, and TNF-alpha that can result in shock and organ failure.
Data released by The World Health Organization (WHO) On July 7, 2017 revealed that cases of gonorrhoea are increasingly more difficult to treat due to widespread resistance to antibiotics that were traditionally used to treat those infections.