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Last Posted: Apr 25, 2024
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Lynch Syndrome Ups Risk for Colorectal, Other Cancers
E Herlache, Cancer Care, March 2024

From the article: "It’s impossible to change our genes, but with knowledge comes power. In the case of Lynch syndrome, a genetic condition that ups people’s risks for developing colorectal and other types of cancer, that’s especially true. Colorectal Cancer Awareness Month offers a reminder for everyone to examine their risk for colorectal cancer and to explore options for screening as well as genetic testing, when warranted. Lynch syndrome puts a person at a higher risk of developing colorectal, uterine, and ovarian cancer. It’s also associated with other cancers, including kidney, stomach, bladder, brain, prostate, and pancreatic cancer. "

Cost-Effectiveness of Population-Based Multigene Testing for Breast and Ovarian Cancer Prevention.
Fangjian Guo et al. JAMA Netw Open 2024 2 (2) e2356078

From the abstract: "Is a population-wide genetic testing strategy more cost-effective than the current family history–based testing strategy for breast and ovarian cancer prevention? This economic evaluation found that population-based BRCA1, BRCA2, and PALB2 testing among unselected women was cost-effective for the prevention of breast and ovarian cancer and remained cost-effective in extensive 1-way sensitivity analyses. Population-wide genetic testing was 100% cost-effective for all the simulations in probabilistic sensitivity analyses; it became cost-inefficient only when the cost of the test exceeded a certain threshold ($825). The findings support the need for a shift toward more comprehensive genetic testing strategies to identify pathogenic variant carriers and enable informed decision-making for personalized risk management. "

Age-specific breast and ovarian cancer risks associated with germline BRCA1 or BRCA2 pathogenic variants – an Asian study of 572 families
WK Ho et al, Lancet Regional Health, February 2024

From the abstract: " Clinical management of Asian BRCA1 and BRCA2 pathogenic variants (PV) carriers remains challenging due to imprecise age-specific breast (BC) and ovarian cancer (OC) risks estimates. We aimed to refine these estimates using six multi-ethnic studies in Asia. We found that the absolute age-specific cancer risks of Asian carriers vary depending on the underlying population-specific cancer incidences, and hence should be customised to allow for more accurate cancer risk management."

Secondary (additional) findings from the 100,000 Genomes Project: disease manifestation, healthcare outcomes and costs of disclosure
J Nolan et al, Genetics in Medicine, December 19, 2023

From the abstract: "The UK 100,000 Genomes Project offered participants screening for additional findings (AFs) in genes associated with familial hypercholesterolemia (FH) or hereditary cancer syndromes including breast/ovarian cancer (HBOC), Lynch, familial adenomatous polyposis, MYH-associated polyposis, multiple endocrine neoplasia, von Hippel-Lindau. Here we report disclosure processes, manifestation of AF-related disease, outcomes and costs. "


Disclaimer: Articles listed in the Public Health Genomics and Precision Health Knowledge Base are selected by the CDC Office of Public Health Genomics to provide current awareness of the literature and news. Inclusion in the update does not necessarily represent the views of the Centers for Disease Control and Prevention nor does it imply endorsement of the article's methods or findings. CDC and DHHS assume no responsibility for the factual accuracy of the items presented. The selection, omission, or content of items does not imply any endorsement or other position taken by CDC or DHHS. Opinion, findings and conclusions expressed by the original authors of items included in the update, or persons quoted therein, are strictly their own and are in no way meant to represent the opinion or views of CDC or DHHS. References to publications, news sources, and non-CDC Websites are provided solely for informational purposes and do not imply endorsement by CDC or DHHS.

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