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Gems Lab Summer Roundup

Congratulations to Jennifer Tullet (again!)

In September, Dr Jennifer Tullet will cease to be a postdoc, and take up
a Principle Investigator position running her own lab at the University
of Kent, where she will continue her investigations of ageing in C.
elegans. Jennifer also recently spoke at the American Aging Association
meeting in San Antonio, Texas, and recently published a paper entitled
“DAF-16 target identification in C. elegans: past, present and future”
in the journal Biogerontology.

Congratulations to Dr Yila de la Guardia!

Yila de la Guardia recently passed her Ph.D. viva (examiners, Prof Bart
Braeckman from the University of Ghent, and Dr Lazaros Foukas from the
IHA). Yila has now returned to Panama, and she is much missed.

New members of the lab

The lab welcomes three new members! Dr Yuan Zhao moved to the lab from
Cancer Research UK, London, where she worked on telomeres in fission
yeast with Dr Julie Cooper; and Dr Evgeniy Galimov from the National
Research Centre for Preventive Medicine, Moscow, where he worked on ROS
signalling and p66shc with Prof Viktor Skulachev. Both positions are
funded by the Wellcome Trust. Welcome also to Thanet Sornda who recently
started Ph.D. research in the lab. Thanet previously did a Master’s
degree at the Institute of Ageing and Health, Newcastle University, and
is funded by the state of Thailand.

News about David Gems

David gave various talks, e.g. at the Genetics of Aging and Longevity
meeting in Sochi (April), Russia, the British Society for Research on
Ageing meeting in Liverpool (July), and at Oxford and Cambridge
universities. He recently published two essays: 'What is an anti-aging
treatment?' Exp. Gerontol. (2014) 58: 14-18; and 'Evolution of sexually
dimorphic longevity in humans.' Aging (2014) 6: 84-91.
More...

Published: Sep 4, 2014 5:02:16 PM

Congratulations to Adam Dobson

Congratulations to Dr Adam Dobson who has been awarded a grant from the Cornell Center for Comparative and Population Genomics to study how the Drosophila gut changes in response to nutritional manipulations. This will establish a collaboration between the Piper lab and Dr Nicolas Buchon at Cornell University.
More...

Published: Sep 4, 2014 4:58:38 PM

Science Paper published

A recent Science article published by a team of UCL researchers including the IHA's Dr Teresa Niccoli sheds light into toxicity mechanisms. View the article here: http://goo.gl/2sgNCb More...

Published: Aug 19, 2014 10:24:04 AM

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.

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