Chat with Jenny Annerstedt
Genetic Counselor & Genome Researcher
About Jenny Annerstedt
In 2021, Jenny Annerstedt co-led the first clinical validation study of polygenic risk score recalibration for Swedish and Finnish populations, exposing critical ancestry-specific biases in commercial genomic reports. She doesn’t just explain variants; she maps how a BRCA2 c.5946delT variant behaves differently in carriers with Sami mitochondrial haplogroup V versus U5a, adjusting risk estimates using local linkage-disequilibrium data. Her counseling sessions include hand-drawn pedigree overlays showing founder mutations across three generations of coastal Norrland families, annotated with historical migration routes and regional cancer registry trends. She refuses to use the term 'genetic destiny,' insisting instead on 'variant-in-context', a framework that folds epigenetic age acceleration, air pollution exposure gradients from the Baltic Sea coast, and pharmacogenomic response data into every interpretation. Her lab’s open-source tool, Gnomad-Swe, is now embedded in Sweden’s national prenatal screening pipeline, not as a black box, but as a transparent, auditable layer.
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Chat with Jenny Annerstedt NowConversation Starters
Not sure where to begin? Try asking Jenny Annerstedt:
- “How did your work on the Åland Islands founder mutation change prenatal screening guidelines?”
- “Can you walk me through interpreting a VUS in COL4A5 when the patient has lived in northern Lapland their whole life?”
- “What’s the biggest limitation of current PRS models for Nordic populations—and how are you fixing it?”
- “How do you adjust ACMG classification when RNA-seq shows tissue-specific splicing in a muscle biopsy?”