HOME >> BIOLOGY >> NEWS
Drunken worms reveal a genetic basis of alcohol response

Since one of the basic risk factors for alcoholism is a tolerance to alcohol, researchers have long sought to understand the genetic differences among people that affect their sensitivity to alcohol. So far, scientists have met with little success.

However, by exposing populations of the roundworm C. elegans to alcohol and pinpointing subtle genetic differences among strains that respond differently, researchers have identified one gene that affects alcohol sensitivity.

In an article in the June 10, 2004, issue of Neuron, Andrew Davies and his colleagues describe their findings that subtle differences between worm strains in the gene for a brain protein called NPR-1 explains differences in the worms' alcohol sensitivity.

The researchers chose the worm as their subject because there is evidence that alcohol has effects on worm behavior. Although the mechanisms that mediate alcohol response in humans or other animals are not well understood, most human neuronal proteins have worm versions and it seems likely that at least some of the mechanisms are shared. Additionally, the worm has been the subject of massive genetic study by scientists, and genetically distinct strains are available from around the world.

In their experiments, Davies and his colleagues exposed two wild strains of worms -- one from England and one from Hawaii to alcohol and compared how they showed "acute tolerance" when first exposed to ethanol. The researchers used alcohol concentrations comparable to those that cause intoxication in humans.

The researchers measured the worms' responses by how much slower their movement became after exposure. The Hawaiian worms showed a more dramatic recovery from initial intoxication than did the English worms.

Genetic analyses of the two strains led to a subtle difference between the strains in the gene for NPR-1. The genetic difference, their experiments showed, caused p
'"/>

Contact: Heidi Hardman
hhardman@cell.com
617-397-2879
Cell Press
9-Jun-2004


Page: 1 2

Related biology news :

1. Drunken Fruit Flies Reveal Molecular Pathway Regulating Sensitivity To Alcohol
2. Convulsions in worms mimic epileptic seizures
3. Heartless worms hold clues to cardiac arrhythmias, sudden death
4. Whale carcass yields bone-devouring worms
5. Oxygen sensing in worms may hold key to healthy blood pressure in humans
6. Researchers discover how worms noses sense oxygen
7. Study in worms shows how genes linked to complexity in animals
8. Two worms are better than one
9. Cows resistance to worms is genetically determined
10. Alien earthworms changing ecology of Northeast forests
11. Amorous worms reveal effects of Chernobyl

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:3/30/2017)... HONG KONG , March 30, 2017 ... developed a system for three-dimensional (3D) fingerprint identification by adopting ground ... technology into a new realm of speed and accuracy for use ... applications at an affordable cost. ... ...
(Date:3/28/2017)... 28, 2017 The report "Video ... Monitors, Servers, Storage Devices), Software (Video Analytics, VMS), and ... Global Forecast to 2022", published by MarketsandMarkets, the market ... is projected to reach USD 75.64 Billion by 2022, ... The base year considered for the study is 2016 ...
(Date:3/24/2017)... 24, 2017 Research and Markets has announced ... Analysis & Trends - Industry Forecast to 2025" report to ... The ... a CAGR of around 15.1% over the next decade to reach ... analyzes the market estimates and forecasts for all the given segments ...
Breaking Biology News(10 mins):
(Date:10/12/2017)... SARASOTA, FL (PRWEB) , ... ... ... Inc. (RPS®) today announces publication of a United States multicenter, prospective clinical ... single use, disposable, point-of-care diagnostic test capable of identifying clinically significant acute ...
(Date:10/11/2017)... ... October 11, 2017 , ... ... in its endogenous context, enabling overexpression experiments and avoiding the use of exogenous ... RNA guides is transformative for performing systematic gain-of-function studies. , This complement ...
(Date:10/11/2017)... ROTTERDAM, the Netherlands and LAGUNA HILLS, ... that The Institute of Cancer Research, London ... will use MMprofiler™ with SKY92, SkylineDx,s prognostic tool to risk-stratify ... high-risk trial known as MUK nine . The University ... this trial, which is partly funded by Myeloma UK, and ...
(Date:10/10/2017)... ... October 10, 2017 , ... ... company advancing targeted antibody-drug conjugate (ADC) therapeutics, today confirmed licensing rights that ... Polymerized Liposomal Nanoparticle), a technology developed in collaboration with Children’s Hospital Los ...
Breaking Biology Technology:
Cached News: