Posted by: Viktor Mar | 2011 October 19

Implanted chip could monitor cancer tumors

MUNICH, Germany (UPI) — Researchers in Germany say an implantable electronic chip may soon be able to monitor tumors that are difficult to operate on or growing slowly.
Medical engineers at Technische Universitaet Muenchen have developed an electronic sensor chip that can determine the oxygen content in a patient’s tissue fluid and wirelessly transmit that data to the patient’s doctor to monitor a course of therapy.
A drop in oxygen content in tissue surrounding a tumor can indicate the tumor might be growing faster and becoming aggressive.
This ongoing monitoring of the tumor means the patient does not have to visit the doctor or hospital as frequently for check-ups, a TUM release said Friday.
The thumbnail-sized sensor chip has already passed laboratory tests with cell and tissue cultures, the researchers said.

Copyright 2011 by United Press International


Low-cost cancer detector developed

EAST LANSING, Mich. (UPI) — Michigan State University scientists say they are working on a low-cost, hand-held device to help physicians in developing countries detect and diagnose cancer.
Cancer is emerging as a leading cause of death in underdeveloped and developing countries where resources for cancer screening are almost non-existent, Reza Nassiri, director of MSU’s Institute of International Health, said in a release Friday.
"Until now, little effort has been concentrated on moving cancer detection to global health settings in resource-poor countries," he said. "Early cancer detection in these countries may lead to affordable management of cancers with the aid of new screening and diagnostic technologies that can overcome global healthcare disparities."
Nassiri is working with Syed Hashsham, a professor of civil and environmental engineering, who is developing the Gene-Z device, which is operated using an iPod Touch or Android-based tablet to perform genetic analysis on microRNAs and other genetic markers.
MicroRNAs are single-stranded molecules that regulate genes, and changes in certain microRNAs have been linked to cancer and other health-related issues.
"Gene-Z has the capability to screen for established markers of cancer at extremely low costs in the field," Hashsham said. "Because it is a hand-held device operated by a battery and chargeable by solar energy, it is extremely useful in limited-resource settings."

Copyright 2011 by United Press International



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