Cigarette smoking's impact lingers after quitting

October 31, 2011, American College of Gastroenterology

Cigarette smoking appears to impair pancreatic duct cell function--even for those who quit--putting all smokers at risk of compromised digestive function regardless of age, gender and alcohol intake, according to the results of a study unveiled today at the American College of Gastroenterology's (ACG) 76th Annual Scientific meeting in Washington, DC.

In a separate smoking-related study also released today, " Cessation and the Risk for Advanced Neoplasia: Risk for Women Persists Longer than for Men," researchers from the University of Connecticut found that the risk of advanced pre-cancerous tissue changes (neoplasia) was significantly elevated for women —even if they stopped smoking—but not for men--suggesting that the impact of smoking in women has a longer effect than in men.

In the study, "Cigarette Smoking Impairs Pancreatic Duct Cell Function," researchers from Center for Pancreatic Disease at Brigham and Women's Hospital in Boston assessed pancreatic duct cell function in and non-smokers (current and past). A total of 131 subjects (74 smoked and 57 never smoked) underwent secretin-stimulated endoscopic pancreatic function testing (ePFT), for pancreatic fluid bicarbonate analysis. Cigarette smoking exposure was found to be associated with an abnormal ePFT result, and there was no statistical difference in peak bicarbonate concentration between current and former smokers, according to the results.

The risk of pancreatic duct cell dysfunction was 56.78 percent in former or current smokers and 26.32 percent in nonsmokers, according to Vivek Kadiyala, MD, who presented the findings. "Our data suggests the risk of duct cell dysfunction was doubled in patients who smoked compared to nonsmokers," said Dr. Kadiyala.

"These findings indicate that anyone with a history of smoking, either current or past is at greater risk of impaired pancreatic duct ," said Dr. Kadiyala.

"Additionally, the findings underscore the value that early may have for patients with chronic pancreatitis and as a result healthcare providers should advise patients to quit smoking as part of their overall treatment plan."

Elevated Colorectal Cancer Risk for Women, Even After Smoking Cessation

Even after women quit smoking they are still at an increased risk for colorectal cancer, according to researchers at the University of Connecticut who examined the risk of advanced neoplasia in 2428 male and female patients over age 45 who have quit smoking.

The recent ACG colorectal cancer screening guidelines include smoking as a risk factor that should be considered when screening for colorectal cancer. Although the risk for neoplasia increases after 10 pack years of exposure, there is little data regarding the risk for advanced neoplasia after quitting.

"The risk of advanced neoplasia was significantly elevated for women and men whether they were current smokers and/ or former smokers who quit within five years of screening colonoscopy," said Joseph C. Anderson, MD, FACG, also of the White River Junction VA Medical Center in Vermont, who presented the findings. "The risk was elevated for female smokers who quit six to ten years prior to screening but not for male smokers."

Dr. Anderson said the data suggests that the impact of smoking has a longer effect in women than in men, and that the data could have an impact on colorectal cancer screening in male versus female smokers. "If smoking is used as a factor for determining when to begin screening, for example, we might have different parameters for men and women."

Explore further: Smoking after menopause may increase sex hormone levels

Related Stories

Smoking after menopause may increase sex hormone levels

August 31, 2011
A recent study accepted for publication in The Endocrine Society's Journal of Clinical Endocrinology & Metabolism (JCEM) found that postmenopausal women who smoke have higher androgen and estrogen levels than non-smoking ...

Smoking may increase risk of prostate cancer recurrence, death

June 21, 2011
A new study from Harvard School of Public Health (HSPH) and University of California, San Francisco, researchers suggests that men with prostate cancer who smoke increase their risk of prostate cancer recurrence and of dying ...

Recommended for you

Gaming or gambling? Online transactions blur boundaries

June 28, 2018
In-game purchasing systems, such as 'loot boxes', in popular online games resemble gambling and may pose financial risks for vulnerable players, according to gambling psychology researchers at the University of Adelaide.

Exercise helps treat addiction by altering brain's dopamine system

May 28, 2018
New research by the University at Buffalo Research Institute on Addictions has identified a key mechanism in how aerobic exercise can help impact the brain in ways that may support treatment—and even prevention strategies—for ...

Warning labels on alcohol containers highly deficient, new research shows

May 21, 2018
Current health warning labels on alcohol beverage containers in New Zealand are highly deficient, new research from the University of Otago, Wellington shows.

Serving smaller alcoholic drinks could reduce the U.K.'s alcohol consumption

May 14, 2018
New research published in Addiction, conducted by researchers from the Universities of Liverpool and Sheffield, highlights the potential benefits of reducing the standard serving size of alcoholic beverages.

Anti-alcoholism drug shows promise in animal models

May 3, 2018
Scientists at The University of Texas at Austin have successfully tested in animals a drug that, they say, may one day help block the withdrawal symptoms and cravings that incessantly coax people with alcoholism to drink. ...

FDA-approved drugs to treat diabetes and obesity may reduce cocaine relapse and help addicted people break the habit

April 28, 2018
Cocaine and other drugs of abuse hijack the natural reward circuits in the brain. In part, that's why it's so hard to quit using these substances. Moreover, relapse rates hover between 40 and 60 percent, similar to rates ...


Please sign in to add a comment. Registration is free, and takes less than a minute. Read more

Click here to reset your password.
Sign in to get notified via email when new comments are made.