Proceedings of the National Academy of Sciences, Volume 122, Issue 49, December 2025. SignificanceProspectively isolated HSCs regenerate long-term hematopoiesis via transplantation in irradiated hosts. Hoxb5 is expressed only in LT-HSCs. In this study, LT-HSCs are the first cells labeled by Hoxb5 lineage tracing and actively participate in …
Observations from the Little Bunker
Last updated: December 10, 2025 10:11 PM
Atmospheric COâ‚‚
427.2 ppm
+17.6
ppm/year
Atmospheric CHâ‚„
1930.95 ppb
+-3.5
ppb/year
Global Temperature
+1.48 °C
Peak: +1.73°C
World Population
8.1 billion
+67
million/year