By using this site, you agree to the Privacy Policy and Terms of Use.
Accept
Health Works CollectiveHealth Works CollectiveHealth Works Collective
  • Health
    • Mental Health
    Health
    Healthcare organizations are operating on slimmer profit margins than ever. One report in August showed that they are even lower than the beginning of the…
    Show More
    Top News
    physical health
    5 Ways Playing Games Can Improve Neural and Physical Health
    September 9, 2022
    Reasons For Hair Loss and Its Treatment
    Reasons For Hair Loss and Its Treatment
    February 16, 2022
    healthcare organization
    5 Actionable Strategies For Healthcare Organizations
    August 15, 2022
    Latest News
    7 Most Common Healthcare Accreditation Programs: Which Should You Use?
    August 20, 2025
    Hospital Pest Control and the Fight Against Superbugs
    August 20, 2025
    Hygiene Beyond The Clinic: Attention To Overlooked Non-Clinical Spaces
    August 13, 2025
    5 Steps to a Promising Career as a Healthcare Administrator
    August 3, 2025
  • Policy and Law
    • Global Healthcare
    • Medical Ethics
    Policy and Law
    Get the latest updates about Insurance policies and Laws in the Healthcare industry for different geographical locations.
    Show More
    Top News
    4 Reasons Chris Cornell’s Death Raises Medical Ethics Questions
    December 19, 2018
    What If You Could Sell Your Vote?
    August 24, 2017
    The Sleepy American
    September 12, 2017
    Latest News
    How Social Security Disability Shapes Access to Care and Everyday Health
    August 22, 2025
    How a DUI Lawyer Can Help When Your Future Health Feels Uncertain
    August 22, 2025
    How One Fall Can Lead to a Long Road of Medical Complications
    August 22, 2025
    How IT and Marketing Teams Can Collaborate to Protect Patient Trust
    July 17, 2025
  • Medical Innovations
  • News
  • Wellness
  • Tech
Search
© 2023 HealthWorks Collective. All Rights Reserved.
Reading: Aspirin for Prevention: The Story
Share
Notification Show More
Font ResizerAa
Health Works CollectiveHealth Works Collective
Font ResizerAa
Search
Follow US
  • About
  • Contact
  • Privacy
© 2023 HealthWorks Collective. All Rights Reserved.
Health Works Collective > Wellness > Aspirin for Prevention: The Story
Wellness

Aspirin for Prevention: The Story

Dov Michaeli
Dov Michaeli
Share
7 Min Read
public health
SHARE

First question: prevention of what? The evidence for daily 81 mg of aspirin (baby aspirin) for prevention of cardiovascular disease is pretty solid. Furthermore, we know that increasing the dose does not confer additional cardiovascular benefits.

First question: prevention of what? The evidence for daily 81 mg of aspirin (baby aspirin) for prevention of cardiovascular disease is pretty solid. Furthermore, we know that increasing the dose does not confer additional cardiovascular benefits.

public healthBut aspirin has also been shown to prevent adenomatous polyps and colon cancer. Two pivotal studies form the basis of our knowledge on colon cancer prevention. The Nurses’ Health Study (NHS) looked at individuals who took 2 or more 325 mg tablets (adult aspirin) a day. The study showed a 23% reduction in subsequent colorectal cancer when 2 tablets a day were taken. These results gained even more credibility because there was an association between dose and response; individuals in the highest quartile, those who took more than 2 tablets a day, had a 42% relative risk reduction. Another study, the Health Professional follow-up study, showed similar  reduction in colorectal cancer risk. Together the 2 trials included almost 200,000 individuals over several decades. Pretty impressive, except that these trials were observational, uncontrolled, non-randomized, in short: susceptible to errors due to unaccounted confounding factors. This issue became moot when a randomized trial, the British Doctors Aspirin Trial, followed more than 7500 individuals for at least 20 years. The results were convincing: regular use of aspirin of at least 325 mg/d resulted in a 29% reduction in colorectal cancer risk.

So, should we start taking daily adult aspirin and, since a dose/response relationship was demonstrated, the more the merrier? Consider the adverse effects of aspirin: GI bleed, ulcer, reduced blood coagulation that can lead to hemorrhagic stroke. Does the benefit of reduced polyp and colorectal cancer risk outweigh these risks? The answer is most likely not. We need to know more before we embark on such a massive public health prevention program. For instance, is everybody  equally protected by taking aspirin? What if it works only in some people but not at all in others? We are going to expose these people to unnecessary risks, and no benefit.

More Read

VITAMIN GUMMIES – A HEALTHY TREAT FOR EVERYONE
Healthy Winter Skin
Bad News for Redheads: Lowering Sun Exposure Not Enough to Keep Melanoma Away
“Why Do I Feel Tired All The Time?” Here’s What To Know
Depression and Diabetes Linked

When in doubt, try science

How does aspirin work? By inhibiting the enzymes COX 1 and 2. This enzymes are pivotal in the metabolism of prostaglandins, chemicals that mediate inflammation. Studies have shown that local inflammation at the site of the polyp or tumor promotes the growth of the cancer. So it stands to reason that inhibition of the COX enzymes would reduce the growth of  the tumor. Indeed, large trials of COX- 2 inhibitors, like rofecoxib (Vioxx, no longer on the market) and celecoxib (Celebrex) demonstrated a 24%-45% reduction of recurrence after polypectomy. But these are overall results. The study did not tell us what differentiated the responders from the non-responders. So what we need are good markers to tell us who is likely to benefit, and who is not.

There is initial progress in finding those markers. For example, people with the UGT1A6 genetic variant have impaired aspirin metabolism. So when they take aspirin their blood levels of the drug are much higher than people who have the “wild type” of the gene. People with the variant had a 34% reduction in the risk of adenoma even without aspirin, and a 39% reduction if they took 1 or more aspirin tablets a day. What about the “wild type”, who make up the majority of the population? They showed no benefit in taking aspirin.

Doing genetic analysis on everybody as a screen for prevention is going to be prohibitively expensive. But another study showed that persons with the highest quartiles of circulating inflammatory factors had a 67% greater likelihood of developing colorectal cancer, and they showed a 60% reduction in colorectal cancer if they took aspirin. Those in the lower quartiles of circulating inflammatory factors derived no benefit from taking aspirin. These results are truly impressive; once the test is developed for commercial use it would be a more selective, and much smarter, approach to deciding who is a candidate for aspirin treatment.

The U.S. Preventive Services Task Force has recommended against the general use of NSAID for colorectal cancer prevention, because the potential for harm outweighs the potential for benefit in the general population. I agree. Colonoscopy has an excellent track record in detecting adenomatous polyps and colorectal cancer. The Preventive task force recommends having  colonoscopy done every  10 years, starting at age 50, until age 75. The latter age is a bit controversial, and some recommend continuing colonoscopy to age 80. If you are at a higher risk (such as having a first degree relative who had colorectal cancer) the recommendation is to start colonoscopy at age 40.

The odds are that for the majority of individuals aspirin can cause more harm than good. The wiser course is to do nothing, and wait until science defines with more precision who would benefit and who could be harmed.

image:pharma/shutterstock

 

The post The evolving story of aspirin for prevention appeared first on The Doctor Weighs In.

TAGGED:aspirin
Share This Article
Facebook Copy Link Print
Share

Stay Connected

1.5kFollowersLike
4.5kFollowersFollow
2.8kFollowersPin
136kSubscribersSubscribe

Latest News

travel nurse in north carolina
Balancing Speed and Scope: Choosing the Nursing Degree That Fits Your Goals
Nursing
September 1, 2025
intimacy
How to Keep Intimacy Comfortable as You Age
Relationship and Lifestyle Senior Care
September 1, 2025
engineer fitting prosthetic arm
How Social Security Disability Shapes Access to Care and Everyday Health
Health care
August 20, 2025
a woman explaining the document
How a DUI Lawyer Can Help When Your Future Health Feels Uncertain
Public Health
August 20, 2025

You Might also Like

Basketball courts at Aegis Living Seattle
DiagnosticsWellness

Different System, Same Challenges: Long-Term Care Perspective From Canada

June 6, 2016
caregivers
Home HealthSpecialties

Family Caregivers Live Longer Than Non-Caregivers: Mortality Rates 18% Lower

October 24, 2013
health benefits of yoga
Wellness

4 Tips to Get the Best Health Benefits from Practicing Yoga

March 21, 2022
you can minimize your risk of a tennis injury by taking the right precautions
Wellness

6 Proven Ways To Help Avoid Tennis Injuries

July 31, 2022
Subscribe
Subscribe to our newsletter to get our newest articles instantly!
Follow US
© 2008-2025 HealthWorks Collective. All Rights Reserved.
  • About
  • Contact
  • Privacy
Welcome Back!

Sign in to your account

Username or Email Address
Password

Lost your password?