Saliva May Help Diagnose PTSD in Veterans

Saliva May Help Diagnose PTSD in Veterans

A recent study finds that former soldiers with post traumatic stress disorders have a certain set of bacteria in their saliva, a distinct signature that is believed to be the first biological marker for PTSD.

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As a bioinformatician and young veteran, Guy Shapira welcomed the opportunity to help with conducting a study to determine if saliva can reveal if war veterans have post-traumatic stress disorder, or PTSD.

The research team, which drew mostly from Tel Aviv University’s Sackler Faculty of Medicine and Sagol School of Neuroscience, collected saliva samples from approximately 200 veterans who suffered psychological trauma stemming from the years they spent fighting in the First Lebanon War in 1982. The researchers also characterized the participants’ psychological, social and medical conditions, including a detailed analysis of their microbiomes.

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Christopher Johnston
Christopher Johnston has published more than 3,500 articles in publications including American Theatre, Christian Science Monitor, History Magazine, and Scientific American. His book, Shattering Silences: Strategies to Prevent Sexual Assault, Heal Survivors, and Bring Assailants to Justice (Skyhorse) was published in May 2018. He is a member of the Board of the American Society of Journalists and Authors.
A robot cafe in Tokyo is making work possible for people with disabilities.

A robot server, controlled remotely by a disabled worker, delivers drinks to patrons at the DAWN cafe in Tokyo.

Photo courtesy of dawn2021.orylab.com.

A sleek, four-foot tall white robot glides across a cafe storefront in Tokyo’s Nihonbashi district, holding a two-tiered serving tray full of tea sandwiches and pastries. The cafe’s patrons smile and say thanks as they take the tray—but it’s not the robot they’re thanking. Instead, the patrons are talking to the person controlling the robot—a restaurant employee who operates the avatar from the comfort of their home.

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Sarah Watts

Sarah Watts is a health and science writer based in Chicago.

Breast cancer patients can now remove their tumors with ice instead of surgery

A woman receives a mammogram, which can detect the presence of tumors in a patient's breast.

When a patient is diagnosed with early-stage breast cancer, having surgery to remove the tumor is considered the standard of care. But what happens when a patient can’t have surgery?

Whether it’s due to high blood pressure, advanced age, heart issues, or other reasons, some breast cancer patients don’t qualify for a lumpectomy—one of the most common treatment options for early-stage breast cancer. A lumpectomy surgically removes the tumor while keeping the patient’s breast intact, while a mastectomy removes the entire breast and nearby lymph nodes.

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Sarah Watts

Sarah Watts is a health and science writer based in Chicago.