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Last Posted: Apr 11, 2024
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Reproductive Carrier Screening: Identifying Families at Risk for Familial Hypercholesterolemia in the United States.
Vivienne Souter et al. Circ Genom Precis Med 2024 3 e004457

From the abstract: "Familial hypercholesterolemia is a treatable genetic condition but remains underdiagnosed. We reviewed the frequency of pathogenic or likely pathogenic (P/LP) variants in the LDLR gene in female individuals receiving reproductive carrier screening. This retrospective observational study included samples from female patients (aged 18–55 years) receiving a 274-gene carrier screening panel. P/LP LDLR variants were identified in 283 samples (1 in 324). No patients were identified with >1 P/LP variant. LDLR carrier frequency was higher in Asian (1 in 191 [95% CI, 1 in 142–258]) compared with White (1 in 417 [95% CI, 1 in 326–533]; P<0.001) or Black groups (1 in 508 [95% CI, 1 in 284–910]; P=0.004). "

Lessons learned from the first national population-based genetic carrier-screening program for Duchenne Muscular Dystrophy.
A Singer et al, Genetics in Medicine, September 12, 2023

From the abstract: " Of overall 85,737 DMD tests, 82 clinically significant findings were noted (0.095%, or 1:1046 women). In addition, 80 findings with uncertain clinical significance were detected (0.093%, or 1:1072), as well as 373 cases (0.4%, or 1:230) of single exon deletions subsequently identified as false-positives due to underlying single nucleotide variant, mostly variants in exon 8 in North African Jewish population, and in exon 48 in Arab Muslim population."

Multilevel barriers and facilitators to widespread use of preconception carrier screening in the United States
LE Hull et al, Genetics in Medicine, July 30, 2023

Although preconception reproductive genetic carrier screening (RGCS) is preferred to screening during pregnancy, population-wide preconception screening is not routinely performed in the U.S. We explored the multilevel barriers to the widespread adoption of preconception RGCS in the U.S. via key informant interviews. Barriers to preconception RGCS were identified at the levels of test characteristics, patients and couples, clinicians and care teams, and the external healthcare and policy environments.

Updated recommendations for CFTR carrier screening: A position statement of the American College of Medical Genetics and Genomics (ACMG)
JL Deignan et al, Genetics in Medicine, June 13, 2023

The new CFTR variant set represents an updated minimum recommended variant set for CF carrier screening, and this new set now supersedes the previous set of 23 CFTR variants recommended by the ACMG. These revised recommendations apply only to carrier screening. They do not apply to CFTR variant testing for diagnosis or newborn screening. All other aspects of the updated 2020 ACMG CFTR technical standards still apply.

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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.