Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Low-cost Parkinson's disease diagnostic test a world first

26.02.2007
Scientists at Melbourne 's Howard Florey Institute have developed a cost-effective diagnostic test for Parkinson's disease (PD), which will also assist researchers to understand the genetic basis of PD and to undertake large-scale studies to identify the genes that cause this debilitating condition.

Currently there is no specific PD diagnostic test and doctors rely on their observations to make a diagnosis, which means some patients may not be prescribed the most suitable medication and around 15% of those diagnosed may actually be suffering from something else.

Whilst conventional DNA sequencing of all six known Parkinson's disease genes is available, this test costs $4,000 and is not covered by Medicare.

Florey research leader, Dr Justin Rubio, has created a ‘ gene-sequencing chip’ that screens 17 genes in all, including the six known Parkinson's disease genes plus some other suspects in one simple test, at a cost of $500.

... more about:
»DNA »Florey »Genetic »Neuron »Parkinson »Rubio »gene-sequencing

Dr Rubio said the gene-sequencing chip would allow for routine testing of people suspected of having Parkinson's disease.

“Around 100,000 Australians have Parkinson's disease but few have had DNA testing for the known genes that cause the disease due to the prohibitive cost,” Dr Rubio said.

“We are now seeking funding to conduct a large-scale trial to examine the effectiveness of our $500 chip compared with the $4,000 DNA test and we are confident our chip will prove to be the better option.

“In addition to providing a genetic diagnosis it is hoped that our chip will eventually be able to pinpoint genetic changes that help to predict a person’s prognosis and even the treatment that best suits them.

“As the test is relatively cheap and only involves collecting a sample of blood or saliva, it could also be made available to the patient's relatives and those at risk of developing PD.

“In addition to being a diagnostic tool, this low-cost chip will allow researchers to undertake an Australia-wide gene-mapping study to identify further genes that are involved in PD.

“More genetic information will deepen our understanding of PD and enable researchers to work towards ways of preventing and treating the disease.

“The successful implementation of this technology could also lead to genetic testing for other diseases ,” Dr Rubio said.

Dr Rubio plans to test the chip on DNA samples from 400 people with PD who were recruited from Victoria and Tasmania, and this project involves collaborators from hospitals and research institutes in both states.

Using the gene-sequencing chip, Dr Rubio and his collaborators now hope to extend the ‘Gene Discovery’ project to all Australian states to determine the genetic basis of PD.

Gene-Sequencing Chip Trial and Australia-Wide Gene-Mapping Study

Although the gene-sequencing chip is not available for clinical use at this stage, people are being sought for both the large-scale gene-sequencing chip trial and the Australiawide gene-mapping study.

To be eligible for the trial and /or study you must have either:

Developed PD symptoms under the age of 40 AND/OR
At least three or more close relatives (grandparents, parents, brother/sister, offspring, first cousin).

If you fit the above criteria, the Florey would welcome your participation. To participate you must:

Ask your neurologist if it is OK to participate and if your neurologist will provide the Florey your clinical information (you will need to provide written consent to your neurologist to do this) AND
Fill out a questionnaire and provide us with a sputum sample AND
Be willing for the Florey to subsequently see you to perform a clinical assessment.

For more information about the trial and study phone (03) 8344 1888 or visit www.hfi.unimelb.edu.au

WHAT IS PARKINSON’S DISEASE?

Parkinson’s disease (PD) is a common neurological condition with 1% of people affected over the age of 60. In PD, there is a progressive loss of neurons located in an area of the brain called the substantia nigra. Under normal circumstances, these neurons communicate via an important chemical messenger called dopamine. The continual loss of dopamine neurons disrupts communication throughout the entire brain and prevents it from being able to prepare and coordinate the series of commands involved in physical movement.

WHAT ARE THE SYMPTOMS?

By the time PD symptoms show, an estimated 60 to 80% of the dopamine neurons have died. The four main symptoms associated with PD are:

Tremor
Muscular rigidity
Slowness in movement
Postural instability or stooped posture.
AUSTRALIAN STATISTICS
There are about 100,000 Australians with PD
In Victoria there are over 25,000 people with Parkinson’s
Around 19 people are diagnosed with PD each week in Victoria
1 in 7 Australians with PD are under the age of 50
FAST FACTS
Parkinson’s is a manageable condition
30% of people diagnosed with Parkinson’s are of working age
About 1 in 10 of those diagnosed are under 40
Several high-profile celebrities have been affected by Parkinson’s, such as Don Chipp, Michael J. Fox, Mohammad Ali, and Pope John Paul

The Howard Florey Institute is Australia’s leading brain research centre. Its scientists undertake clinical and applied research that can be developed into treatments to combat brain disorders, and new medical practices. Their discoveries will improve the lives of those directly, and indirectly, affected by brain and mind disorders in Australia, and around the world. The Florey’s research areas cover a variety of brain and mind disorders including Parkinson’s disease, stroke, motor neuron disease, addiction, epilepsy, multiple sclerosis, autism and dementia.

Merrin Rafferty | EurekAlert!
Further information:
http://www.hfi.unimelb.edu.au

Further reports about: DNA Florey Genetic Neuron Parkinson Rubio gene-sequencing

More articles from Life Sciences:

nachricht Climate Impact Research in Hannover: Small Plants against Large Waves
17.08.2018 | Leibniz Universität Hannover

nachricht First transcription atlas of all wheat genes expands prospects for research and cultivation
17.08.2018 | Leibniz-Institut für Pflanzengenetik und Kulturpflanzenforschung

All articles from Life Sciences >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Color effects from transparent 3D-printed nanostructures

New design tool automatically creates nanostructure 3D-print templates for user-given colors
Scientists present work at prestigious SIGGRAPH conference

Most of the objects we see are colored by pigments, but using pigments has disadvantages: such colors can fade, industrial pigments are often toxic, and...

Im Focus: Unraveling the nature of 'whistlers' from space in the lab

A new study sheds light on how ultralow frequency radio waves and plasmas interact

Scientists at the University of California, Los Angeles present new research on a curious cosmic phenomenon known as "whistlers" -- very low frequency packets...

Im Focus: New interactive machine learning tool makes car designs more aerodynamic

Scientists develop first tool to use machine learning methods to compute flow around interactively designable 3D objects. Tool will be presented at this year’s prestigious SIGGRAPH conference.

When engineers or designers want to test the aerodynamic properties of the newly designed shape of a car, airplane, or other object, they would normally model...

Im Focus: Robots as 'pump attendants': TU Graz develops robot-controlled rapid charging system for e-vehicles

Researchers from TU Graz and their industry partners have unveiled a world first: the prototype of a robot-controlled, high-speed combined charging system (CCS) for electric vehicles that enables series charging of cars in various parking positions.

Global demand for electric vehicles is forecast to rise sharply: by 2025, the number of new vehicle registrations is expected to reach 25 million per year....

Im Focus: The “TRiC” to folding actin

Proteins must be folded correctly to fulfill their molecular functions in cells. Molecular assistants called chaperones help proteins exploit their inbuilt folding potential and reach the correct three-dimensional structure. Researchers at the Max Planck Institute of Biochemistry (MPIB) have demonstrated that actin, the most abundant protein in higher developed cells, does not have the inbuilt potential to fold and instead requires special assistance to fold into its active state. The chaperone TRiC uses a previously undescribed mechanism to perform actin folding. The study was recently published in the journal Cell.

Actin is the most abundant protein in highly developed cells and has diverse functions in processes like cell stabilization, cell division and muscle...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

VideoLinks
Industry & Economy
Event News

LaserForum 2018 deals with 3D production of components

17.08.2018 | Event News

Within reach of the Universe

08.08.2018 | Event News

A journey through the history of microscopy – new exhibition opens at the MDC

27.07.2018 | Event News

 
Latest News

Smallest transistor worldwide switches current with a single atom in solid electrolyte

17.08.2018 | Physics and Astronomy

Robots as Tools and Partners in Rehabilitation

17.08.2018 | Information Technology

Climate Impact Research in Hannover: Small Plants against Large Waves

17.08.2018 | Life Sciences

VideoLinks
Science & Research
Overview of more VideoLinks >>>