Health and Me

Ishita Roy

Regular Blood Donation May Influence Cancer Risk

Can blood donation reduce cancer risk?

A recent study suggests that people who donate blood regularly may have genetic changes in their blood that could in fact reduce the risk of developing <span><a href="https://www.healthandme.com/health/cancer">cancer</a></span>. It is conducted by the researchers at the Francis Crick Institute, and the study has now provided new insights into how and why blood cancers develop. The study is published in the journal Blood and was conducted by the scientists from Heidelberg and the German Red Cross <span>blood donation</span> center. There is yet a need for further research to confirm these findings. 

The researchers examined the blood of two groups of healthy male donors in their 60s:

<ul><li>One group had donated blood three times a year for 40 years.</li><li>The other group had donated only about five times in total.</li></ul>

The goal was to analyze genetic mutations in their blood and assess whether frequent donation had any impact on their genetic makeup.

<h4>How Can Blood Donation Affect Stem Cells?</h4>

As and when people age, their blood and other cells naturally develop mutations and some of them can also increase the risk of cancer. When anyone donates blood, his or her body compensates by producing new blood cells, which can influence the genetic diversity of stem cells in the bone marrow. The study also found that both groups had a similar number of mutations. For instance the frequent donors had 217 mutations, while the irregular donors had 212 mutations. 

However, the nature of these mutations differed. In the frequent donors, 50% of the mutations were of a type not associated with a high risk of blood cancers, compared to only 30% in the irregular donors.

Further laboratory analysis showed that these specific mutations behaved differently from those linked to leukemia, a type of blood cancer. When human blood stem cells with these mutations were injected into mice, they were found to be highly effective at producing red blood cells, which is considered a positive outcome.

Dr. Hector Huerga Encabo, one of the study authors, emphasized that these mutations do not indicate an increased risk of leukemia. The findings suggest that regular blood donation may influence how stem cells evolve, but whether this translates into a lower cancer risk remains uncertain.

Read More: <a href="https://www.healthandme.com/health-wellness/who-can-donate-blood-to-whom-article-151105034" data-type="tilCustomLink">Who Can Donate Blood To Whom?</a>

One notable disadvantage is the "healthy-donor effect"—because blood donors are often healthier than the general population, their lower cancer risk could be unrelated to blood donation.

Dominique Bonnet, senior researcher and head of a stem-cell laboratory at the Francis Crick Institute, stressed the need for larger studies with female volunteers to confirm the findings.

Despite ongoing research into potential health benefits for donors, the primary goal of blood donation remains saving lives. NHS Blood and Transplant emphasized that while the study is interesting, further research is required to draw firm conclusions. The organization also noted that blood supplies are currently critically low and encouraged eligible individuals to donate.

<strong>Also Read: <a href="https://www.healthandme.com/health-wellness/how-long-after-a-tattoo-or-piercing-can-i-donate-blood-article-151210770" data-type="tilCustomLink">How Long After a Tattoo or Piercing Can I Donate Blood?</a></strong>

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A recent study suggests that people who donate blood regularly may have genetic changes in their blood that could in fact reduce the risk of developing cancer. It is conducted by the researchers at the Francis Crick Institute, and the study has now provided new insights into how and why blood cancers develop. The study is published in the journal Blood and was conducted by the scientists from Heidelberg and the German Red Cross blood donation center. There is yet a need for further research to confirm these findings. What Did The Study Find?The researchers examined the blood of two groups of healthy male donors in their 60s:One group had donated blood three times a year for 40 years.The other group had donated only about five times in total.The goal was to analyze genetic mutations in their blood and assess whether frequent donation had any impact on their genetic makeup.How Can Blood Donation Affect Stem Cells?As and when people age, their blood and other cells naturally develop mutations and some of them can also increase the risk of cancer. When anyone donates blood, his or her body compensates by producing new blood cells, which can influence the genetic diversity of stem cells in the bone marrow. The study also found that both groups had a similar number of mutations. For instance the frequent donors had 217 mutations, while the irregular donors had 212 mutations. However, the nature of these mutations differed. In the frequent donors, 50% of the mutations were of a type not associated with a high risk of blood cancers, compared to only 30% in the irregular donors.Further laboratory analysis showed that these specific mutations behaved differently from those linked to leukemia, a type of blood cancer. When human blood stem cells with these mutations were injected into mice, they were found to be highly effective at producing red blood cells, which is considered a positive outcome.Dr. Hector Huerga Encabo, one of the study authors, emphasized that these mutations do not indicate an increased risk of leukemia. The findings suggest that regular blood donation may influence how stem cells evolve, but whether this translates into a lower cancer risk remains uncertain.Read More: Who Can Donate Blood To Whom?Limitations One notable disadvantage is the "healthy-donor effect"—because blood donors are often healthier than the general population, their lower cancer risk could be unrelated to blood donation.Dominique Bonnet, senior researcher and head of a stem-cell laboratory at the Francis Crick Institute, stressed the need for larger studies with female volunteers to confirm the findings.Despite ongoing research into potential health benefits for donors, the primary goal of blood donation remains saving lives. NHS Blood and Transplant emphasized that while the study is interesting, further research is required to draw firm conclusions. The organization also noted that blood supplies are currently critically low and encouraged eligible individuals to donate.Also Read: How Long After a Tattoo or Piercing Can I Donate Blood?