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Indo-US experts developing solar-powered oral cancer detector for remote areas

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Kolkata: Researchers in India and the US are testing a handy solar-powered device for early detection of oral cancer which could be integrated with mobile technology, enabling faster and accurate diagnostics in rural areas.

Designed by the Beckman Laser Institute (BLI), University of California-Irvine (UCI) and the Mazumdar Shaw Cancer Centre (MSCC) in Bengaluru, the compact screening and diagnosing system – slightly larger than a shoe box – has been specially adapted for India, which has one of the highest rates of head and neck cancers in the world and accounts for the highest rate among women.

Its light-weight and user-friendly features mean even minimally educated healthcare workers in the field can apply it. The solar energy-driven device will capture images of the patient’s oral cavity and transmit them via a mobile phone to experts at the centre.

“India is the first country in which we are using the device – it was specifically designed to meet conditions and needs there. The final device will have a solar option,” Petra Wilder-Smith of BLI told a news agency in an email interaction.

Recognised as a pioneer in the application of optics and lasers in oral diagnosis, Wilder-Smith said the device is based on optical coherence tomography (OCT) – an imaging technology that is similar to ultrasound, except that it uses light (a laser). The screening will be in real-time and the patient will not be subjected to harmful radiation.

“The inexpensive, very small, robust portable diagnostic system for oral cancer based on OCT will be used to screen for oral cancer in the field by basic level healthcare workers in India, and a simple diagnostic algorithm will indicate further diagnostic and treatment needs for each individual,” said Wilder-Smith, director of dentistry at BLI.

Oral cancer is the most common cancer in India, accounting for 40 percent of all cancers overall and for over 50 percent of all cancers in some areas of the country.

It is also disturbing to note the spike in oral cancer in young adults.

“In the US, the oral cancer rate is also high, especially in African-Americans, older persons, and tobacco and alcohol users. It is particularly troubling that recently a trend has been observed worldwide towards an increased incidence of oral cancer among young adults,” informed Wilder-Smith, stressing on early detection.

Why the emphasis on the light-based technology?

Wilder-Smith said oral cancer and pre-cancer are currently diagnosed using a visual exam, which has a poor accuracy rate, and by surgical biopsy, which cannot be performed in the field by basic-level healthcare workers.

And since existing and emerging imaging-based diagnostic tools are too expensive, too fragile and difficult to operate in remote locations, head and neck oncologist M.A Kuriakose from MSCC, who is leading the venture in India, said the probe will be of immense value in low-resource settings in rural India, where visits to dentists are rare.

“It is being tested in MSCC Bengaluru. The validation phase is 12 months. We are also planning to incorporate the transmission of the laser image from remote location via a mobile phone. Once developed, one needs to get regulatory approvals before it can be made available for wider clinical use,” Kuriakose said.

With the fabrication cost goal estimated at lower than $5,000 (Rs.335,000), researchers say the subsequent models of the probe will be wireless and 3D scan-enabled.

“The experimental model costs about Rs.1.5 lakh (lower than that of existing commercial devices). However, the commercial product cost will be significantly lower,” Kuriakose told a news agency.

The project is funded by the National Institute of Health’s National Institute of Biomedical Imaging and Bioengineering, under the Indo-US collaborative programme. The Department of Biotechnology is also a funding partner, said Kuriakose.

The collaborators are also working in close consultation to thrash out a simple diagnostic algorithm which will indicate further diagnostic and treatment needs for each individual.

“Screening will identify whether a person needs to travel to a centre with higher levels of expertise in oral cancer for further tests and potential cancer therapy,” Wilder-Smith added.

(Sahana Ghosh, IANS)

(Picture credit:www.thehoopsnews.com)

 

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Nobel Prize for Physiology or Medicine Goes To Cancer Therapy Researchers From US, Japan

The prize comes with an award of $1.1 million.

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Nobel Committee of the Karolinska Institute announces 2018 Nobel Prize for Physiology or Medicine in Stockholm, Sweden. VOA

The 2018 Nobel Prize for Physiology or Medicine has been awarded to James Allison of the University of Texas and Tasuku Honjo of Japan’s Kyoto University for their discoveries in cancer therapy.

“Allison and Honjo showed how different strategies for inhibiting the brakes on the immune system can be used in the treatment of cancer,” the Nobel Assembly at Sweden’s Karolinska Institute said in a statement on awarding the prize.

The prize for physiology or medicine is first Nobel Prize awarded each year.

Nobel Prize
Nobel Peace Prize Bearing Likeness of Alfred Nobel

The prizes for physics, chemistry, and peace will also be announced this week. The literature prize will not be given this year because of a sexual misconduct scandal at the body that decides the award. The Nobel Memorial Prize for Economic Sciences will be announced on Monday, October 8.

The prize comes with an award of $1.1 million.

Nobel Prize
A combination photo shows Ph.D. James P. Allison of MD Anderson Cancer Center at The University of Texas in this picture obtained from MD Anderson Cancer Center (R) and Kyoto University Professor Tasuku Honjo in Kyoto, in this photo taken by Kyodo.. VOA

Who are they?

James P. Allison was born 1948 in Alice, Texas, USA. He received his PhD in 1973 at the University of Texas, Austin. From 1974-1977 he was a postdoctoral fellow at the Scripps Clinic and Research Foundation, La Jolla, California. From 1977-1984 he was a faculty member at University of Texas System Cancer Center, Smithville, Texas; from 1985-2004 at University of California, Berkeley and from 2004-2012 at Memorial Sloan-Kettering Cancer Center, New York. From 1997-2012 he was an investigator at the Howard Hughes Medical Institute. Since 2012 he has been professor at University of Texas MD Anderson Cancer Center, Houston, Texas and is affiliated with the Parker Institute for Cancer Immunotherapy.

Also Read: Ovarian Caner Risks Cut in Half With a New Birth Control Pill: Study

Tasuku Honjo was born in 1942 in Kyoto, Japan. In 1966 he became an MD, and from 1971-1974 he was a research fellow in the USA at Carnegie Institution of Washington, Baltimore and at the National Institutes of Health, Bethesda, Maryland. He received his PhD in 1975 at Kyoto University. From 1974-1979 he was a faculty member at Tokyo University and from 1979-1984 at Osaka University. Since 1984 he has been professor at Kyoto University. He was a faculty dean from 1996-2000 and from 2002-2004 at Kyoto University. (VOA)