Female mice from strains with lower IGF1 levels reach sexual maturity at a significantly later age. Combined with previous research showing that mouse strains with lower circulating levels of IGF1 live longer, the findings suggest a genetically regulated tradeoff: delayed reproduction but longer life.
- Why females live longer than males: is it due to the father's sperm?Tue, 1 Dec 2009, 19:57:25 EST
- Competing for a mate can shorten lifespanMon, 9 Aug 2010, 12:23:43 EDT
- Inbreeding insects cast light on longer female lifespansFri, 6 Feb 2009, 8:16:59 EST
- Mouse study: When it comes to living longer, it's better to go hungry than go runningWed, 14 May 2008, 0:35:10 EDT
- Mouse study turns fat-loss/longevity link on its headTue, 3 May 2011, 16:02:14 EDT