Thursday, February 11, 2016

New milestone for device that can ‘smell’ prostate cancer University of Liverpool – EurekAlert (press release)

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IMAGE: Professor Chris Probert is pictured. view a lot more

Credit: University of Liverpool

A research group from the University of Liverpool has actually reached an crucial milestone to making a urine diagnostic test for prostate cancer that could mean that invasive diagnostic procedures that men currently undergo eventually come to be a thing of the past.

‘The usage of a gas chromatography (GC)-sensor system combined along with advanced statistical means to the diagnosis of urological malignancies’, published today in the Journal of Breath Research, describes a diagnostic test using a special device to ‘smell’ the cancer in men’s urine.

Working in collaboration along with the University of the West of England’s (UWE Bristol) Urological Institute group at Southmead Hospital and Bristol Royal Infirmary, the pilot study included 155 men presenting to urology clinics. Of this group, 58 were diagnosed along with prostate cancer, 24 along with bladder cancer and 73 along with haematuria or unsatisfactory stream devoid of cancer. The outcomes of the pilot study using the GC sensor system indicate that it is able to successfully identify various patterns of volatile compounds that enable classification of urine samples from patients along with urological cancers.

Urgent necessity for earlier diagnosis

Professor Chris Probert from the University of Liverpool’s Institute of Translational Medicine began Job on this project along with UWE Bristol once he was Functioning in Bristol as a gastroenterologist along with clinical and research interest in inflammatory bowel disease.

The research group used a gas chromatography sensor system called Odoreader that was produced by a group led by Professor Probert and Professor Norman Ratcliffe at UWE Bristol. and by Professor Probert. The test includes inserting urine samples in to the Odoreader that are after that measured using algorithms produced by the research group at the University of Liverpool and UWE Bristol.

Professor Probert said: “There is an urgent have to identify these cancers at an earlier phase once they are a lot more treatable as the earlier a individual is diagnosed the better. After further sample testing the next step is to take this technology and place it in to a user friendly format. along with tips from industry partners we will certainly have the ability to further produce the Odoreader, which will certainly allow it to be used where it is required most; at a patient’s bedside, in a doctor’s surgery, in a clinic or Walk In Centre, providing fast, inexpensive, accurate results.”

Like an electronic nose

Professor Norman Ratcliffe said, “There is currently no accurate test for prostate cancer, the vagaries of the PSA test indicators can easily sometimes cause unnecessary biopsies, resulting in psychological toll, risk of infection from the procedure and also sometimes passing up cancer cases. Our make every effort is to produce a test that avoids this procedure at first diagnosis by detecting cancer in a non-invasive means by smelling the illness in men’s urine. A couple of years ago we did comparable Job to detect bladder cancer adhering to a discovery that dogs could sniff out cancer. We have actually been using the Odoreader, which resembles an electronic nose to sense the cancer.”

“The Odoreader has actually a 30 metre column that permits the compounds in the urine to travel through at various rates thus breaking the sample in to a readable format. This is after that translated in to an algorithm enabling detection of cancer by going through the patterns presented. The positioning of the prostate gland which is quite close to the bladder gives the urine profile a various algorithm if the man has actually cancer.”

Mr Raj Prasad, Consultant Urologist at Southmead Hospital, North Bristol NHS Trust, said: “If this test succeeds at complete medical trial it will certainly revolutionise diagnostics. also along with detailed template biopsies there is a risk that we could fall short to detect prostate cancer in some cases. Currently indicators such as diagnosed prostatomegaly (enlarged prostate) and unusually higher PSA levels can easily bring about suggestions for biopsy if there is a concern that cancer could be prevalent. An accurate urine test would certainly mean that numerous men that currently undergo prostate biopsy could not have to do so.”

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The pilot trial was funded by the Rotary Club in Bristol that held annual Run for the Future events in Bristol.

The research group is now looking to fund a complete clinical trial.

A video in which Professor Probert explains exactly how the machine functions can easily be discovered here

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