Study on Prostate Cancer Risk in Men Undergoing Assisted Reproduction
Overview of Assisted Reproduction
A recent Swedish study investigated the incidence of prostate cancer among men who required assisted reproduction techniques such as IVF (in vitro fertilization) or ICSI (intracytoplasmic sperm injection) to father children, compared to those who did not seek fertility treatments. Assisted reproduction refers to methods that aid couples in conceiving when faced with challenges like low sperm counts or difficulties with sperm fertilization.
Link Between Hormones and Fertility Treatments
One potential factor for men needing assisted reproduction is abnormal levels of male hormones known as androgens. Given the role of androgens in prostate cancer, previous studies have examined whether men undergoing fertility treatments have a heightened risk of developing prostate cancer later in life. However, findings have been inconsistent, prompting researchers from Sweden and Bulgaria to conduct a thorough analysis of data from Swedish men who became fathers through assisted reproductive methods.
Findings of the Study
The study compared the incidence of prostate cancer in men who used IVF or ICSI with those who did not require fertility treatments. The results indicated that men who became fathers through assisted reproduction were at a greater risk of developing prostate cancer at an earlier age, particularly in their fifties. It is important to note that ICSI was only introduced in the 1990s, leaving questions regarding the long-term prostate cancer risk for these men unanswered at this time.
Implications and Limitations
The researchers assert that their findings highlight a specific group of men at risk for prostate cancer, suggesting that healthcare policies can be established to provide better guidance on future prostate cancer screening during fertility treatment. However, the study has limitations, including the exclusion of men who did not have children but may also be at risk. Identifying this demographic can be complex, as low fertility can stem from various factors unrelated to the ability to conceive.
Reference
Al-Jebari Y, Elenkov A, Wirestrand E, Schutz I, Giwercman A, Lundberg Giwercman Y. Risk of prostate cancer for men fathering through assisted reproduction: nationwide population-based register study. BMJ 2019;366:l5214.
Image by Elena Έλενα Kontogianni Κοντογιάννη from Pixabay.