Research Security Symposium on March 12
Meeting Announcement
Updates every hour. Last Updated: 3-Mar-2025 22:08 ET (4-Mar-2025 03:08 GMT/UTC)
How we take actions to balance between openness and security for scientific research appropriately. On March 12, JST holds the symposium aiming to create an opportunity to deepen discussion on efforts necessary to protect research freedom. The event is hybrid, allowing attendees to join on-site or online webinar.
Kyoto, Japan -- Having one traumatic experience is bad enough. If you've constantly experienced stress since before birth, you may be in for an especially tough time. Our emotions may be influenced by infections experienced in the mother’s womb. This can result from two-hit stress, where an infection during pregnancy is followed by social stress during postpartum development.
A team of researchers at Kyoto University recently set out to understand the mechanisms behind which two-hit stress contributes to brain dysfunction and mental disorders. They conducted a comprehensive investigation of the social and cognitive behaviors of mice that have been exposed to such stress, paying particular attention to anxiety-like behaviors.
Previously, this team demonstrated that acute inflammation in the cerebellum caused by a bacterial infection induces neural plasticity, which in turn may lead to hyper-excitability in the brain and the onset of depressive and autism-like symptoms. Yet exactly how two-hit stress contributes to changes in the brain had remained unclear.
Researchers from Osaka University found that TEX38 and ZDHHC19 co-localize on the plasma membrane of spermatids and mediate S-palmitoylation of ARRDC5, a crucial protein for spermatogenesis. Disrupting either TEX38 or ZDHHC19 inhibited cytoplasm removal from the sperm head, resulting in deformed sperm and infertility in a male mouse model.
Astronomers conducted molecular gas observations of two enigmatic interstellar objects, which harbor abundant ices of water and organic molecules. The observations with the ALMA telescope have revealed the physical and chemical properties of these objects, but their characteristics do not match those of any previously known interstellar objects where ices have been detected. They may represent a new class of interstellar icy objects that provide an environment conducive to the formation of ices and organic molecules.