Diagnosis and Monitoring Adrenal Gland Diseases With New Smartphone Technology and App

Diagnosis of diseases of adrenal gland have long been difficult, but a new technology of using saliva and smartphone is now affordable and easy way of diagnosis and monitoring the disease.

Researchers at Intermountain Medical Center in Murray, Utah, have developed new smartphone technology to help screen patients for a number of adrenal gland diseases, including Cushing's syndrome. The new tool also helps to identify adrenal insufficiency, monitor cortisol replacement and assess physiologic changes in adrenal function.

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Adrenal diseases are commonly overlooked because measuring cortisol, the so-called "stress hormone" that is released by the adrenal glands as part of the fight-or-flight mechanism, is costly and complicated, especially for those with limited resources, say researchers.

"When cortisol levels are overlooked too many people suffer and die because of excess or insufficient cortisol," said Joel Ehrenkranz, MD, director of diabetes and endocrinology at Intermountain Medical Center, and lead researcher of the project.

To help solve this problem, researchers developed a simple saliva test that uses a smartphone and an attached device that inexpensively feeds the results of a saliva test into the smart phone. An app then quantifies and interprets the results of a salivary cortisol assay and gives results in five minutes at the point of care.

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"The cortisol assay is similar in design to a home pregnancy test and urine sample drug tests," says Dr. Ehrenkranz. "It's like having an endocrine specialist in your phone."

Dr. Ehrenkranz and his team will present findings of this new smartphone technology at the 16th International Congress of Endocrinology on Tuesday, June 24, at 9:45 AM, CDT, in Chicago.

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The idea for creating an easy and inexpensive test for cortisol first came to Dr. Ehrenkranz in 2007, while he was visiting Mulago Hospital in Kampala, Uganda. He was shown a 60-year-old woman suffering from Addison's disease, which occurs when the adrenal glands produce too little cortisol.

In order to help in the diagnosis, Dr. Ehrenkranz suggested testing the woman's cortisol levels, but her physicians resisted. Due to their current procedures, they felt the test would take too long and be too costly ($50) for the patient to afford. After drawing her blood, physicians would need to send the blood sample to a lab in Nairobi, Kenya, and by the time they received the results, the patient would likely have died.

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"After my experience at Mulago, I knew I needed to develop a test and technology that would fix this problem of testing cortisol levels," said Dr. Ehrenkranz. "It needed to be inexpensive and easy to do."

The new technology will especially help diabetic patients.

For diabetics, controlling stress levels is key to controlling cortisol levels, which helps prevent and control the disease. Stress increases the levels of cortisol in their body, and elevations in cortisol impair the body's ability to metabolize glucose. This increases blood glucose levels. High cortisol levels also affect the body's ability to fight infections, lose weight and recovery from injury.

"What this means is when blood cortisol levels are too high, insulin will not lower blood sugar," said Dr. Ehrenkranz. "Elevations in cortisol decrease the effectiveness of insulin and other drugs used in the treatment of diabetes. Having the ability to easily and inexpensively measure cortisol levels is important in managing diabetes."

Source-Eurekalert