IHA Logo
UCL Institute of Healthy Ageing IHA News

Follow us:

find_us_on_facebook
twitter
A A A
Feed icon

IHA news

Lectureship for Alexandre Benedetto

Until recently an EU-funded postdoc in David Gems's lab, Alex Benedetto will shortly set up his own laboratory at the University of Lancaster, in the Department of Biomedical and Life Sciences. There he will continue his investigations of the biology of ageing in model organisms, particularly C. elegans. We wish Alex all the best in setting up his new lab! More...

Published: Jul 20, 2016 2:10:01 PM

Congratulations to Yila de la Guardia

New report on the origins of age-related disease in C. elegans More...

Published: Jul 20, 2016 2:04:41 PM

Congratulations to Dr Jorge Ivan Castillo Quan on his Cell Reports paper

Congratulations to Dr Jorge Ivan Castillo Quan whose paper in Cell Reports was published today. His research, which was carried out during his PhD studies at the Institute of Healthy Ageing, demonstrates that fruit flies live 16% longer than average when given low doses of the mood stabiliser lithium. More...

Published: Apr 7, 2016 5:01:10 PM

PLoS One paper for Dr Cathy Slack

25 October 2012

Congratulations to Dr Cathy Slack (Partridge Laboratory) on the publication of her paper 'Activation of AMPK by the Putative Dietary Restriction Mimetic Metformin is insufficient to Extend Lifespan in Drosophila' in PLoS One.

Abstract -
The biguanide drug, metformin, commonly used to treat type-2 diabetes, has been shown to extend lifespan and reduce fecundity in C. elegans through a dietary restriction-like mechanism via the AMP-activated protein kinase (AMPK) and the AMPK-activating kinase, LKB1. We have investigated whether the longevity-promoting effects of metformin are evolutionarily conserved using the fruit fly, Drosophila melanogaster. We show here that while feeding metformin to adult Drosophila resulted in a robust activation of AMPK and reduced lipid stores, it did not increase lifespan in either male or female flies. In fact, we found that when administered at high concentrations, metformin is toxic to flies. Furthermore, no decreases in female fecundity were observed except at the most toxic dose. Analysis of intestinal physiology after metformin treatment suggests that these deleterious effects may result from disruptions to intestinal fluid homeostasis. Thus, metformin appears to have evolutionarily conserved effects on metabolism but not on fecundity or lifespan.

Page last modified on 25 oct 12 15:26