N,N-dimethyltryptamine compound found in the hallucinogenic #tea ayahuasca, regulates adult neurogenesis in vitro and in vivo

N,N-dimethyltryptamine (DMT) is a component of the ayahuasca brew traditionally used for ritual and therapeutic purposes across several South American countries. Here, we have examined, in vitro and vivo, the potential neurogenic effect of DMT. Our results demonstrate that DMT administration activates the main adult neurogenic niche, the subgranular zone of the dentate gyrus of …

Continue reading N,N-dimethyltryptamine compound found in the hallucinogenic #tea ayahuasca, regulates adult neurogenesis in vitro and in vivo

Evidence that #coronavirus superspreading is #fat-tailed

Superspreaders, infected individuals who result in an outsized number of secondary cases, are believed to underlie a significant fraction of total SARS-CoV-2 transmission. Here, we combine empirical observations of SARS-CoV and SARS-CoV-2 transmission and extreme value statistics to show that the distribution of secondary cases is consistent with being fat-tailed, implying that large superspreading events …

Continue reading Evidence that #coronavirus superspreading is #fat-tailed