Ex-smokers who vape at higher risk of lung cancer

UC tobacco expert Ashley Merianos cited as expert in global media reporting on vape study

One of the few large population, long-term studies of vaping as an alternative to smoking is covered in the global publication Deutsche Welle, with UC’s tobacco researcher Ashley Merianos cited for her expert opinion. 

231020aMerianos044.CR2
Ashley L. Merianos, PhD, Assoc Professor, CECH-Human Services

Tobacco use expert Ashley Merianos, PhD. Photo/Andrew Higley/UC Marketing+ Brand.

The study, out of South Korea, found that former cigarette smokers who took up e-cigarettes were at a greater risk of a lung cancer diagnosis and cancer-related death than ex-smokers who had quit and avoided e-cigarettes as well.

"Dangerous chemicals found in vaping products that can damage lungs include acrolein, formaldehyde, diacetyl, and ultrafine particles that can be deeply inhaled. Vaping products can also include heavy metals such as lead," Merianos, an associate professor in UC’s School of Human Services, told DW.

According to the article, some studies show that vaping short-term, for less than two years, is not associated with a rise in cancer diagnoses. But this latest study, it says, is one of several more recent studies indicating that vapes may increase the risk of developing cancer later in life, at least for people who used to smoke conventional cigarettes.

Merianos said that for now: Researchers lack the overall evidence to make conclusions about the long-term health effects of vaping, including cancer outcomes.

Merianos is currently serving as a co-investigator on two U.S. National Institutes of Health research projects and is the co-author of the e-book, “Who Vapes?”, a look at E-cigarettes and the potential harm to users have become a prevalent public health problem in the United States especially among adolescents and young adults. Merianos is also an affiliate member of the Thirdhand Smoke Research Consortium.

Read the article.

Merianos is also cited in a prior Deutsche Welle article for opinion her on a study of vaping and pregnancy: Vaping while pregnant: What we know.  

Featured image at top of vape pen and cigarette: iStock Photo/Neydtstock.

Impact Lives Here

The University of Cincinnati is leading public urban universities into a new era of innovation and impact. Our faculty, staff and students are saving lives, changing outcomes and bending the future in our city's direction. Next Lives Here.

Related Stories

2

Is uACR the key to cardiovascular and kidney disease prevention?

March 8, 2026

As a precision biomarker, the urinary albumin-to-creatinine ratio (uACR) can guide physicians toward personalized, patient-centered prevention and treatment of both cardiovascular disease (CVD) and chronic kidney disease (CKD), according to new data published in the Journal of Internal Medicine.

3

Driven by her own pain

March 8, 2026

Endometriosis is a painful and often debilitating disease that affects an estimated 6.5 million women in the U.S. It occurs when tissue similar to the lining of the uterus grows outside of it, causing pain, inflammation and sometimes infertility. Now a University of Cincinnati College of Medicine researcher is developing what is believed to be the first at-home diagnostic test.