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Glenn Nichols, surrounded by his hospice team. The author is in yellow.

Genetic Linkage

Genetic Modifiers: Healthy Mutants Fuel Drug Discovery

April 12, 2013

Tags: BRCA1, BRCA2, incomplete penetrance, 23andMe, exome, genome, genetic counseling, amyloidosis, Alzheimer, Parkinson

Disease-causing mutations in healthy people suggest new drug targets. (NHGRI)
I’m uneasy counseling a patient for mutations in the BRCA1 or BRCA2 cancer susceptibility genes. Typically, she’ll have a “first degree relative” – usually a mother or sister – with a related cancer, or might even have a test result in hand. This happened a week ago.

FUZZY GENETIC INFORMATION
My patient comes from a long line of female relatives who’d died young from breast or ovarian cancer. She’s already been tested and knows she has a BRCA1 mutation. Will she get the family’s cancer? Knowing would enable her to decide whether and when to undergo surgery to remove her breasts, ovaries, and uterus. (more…)

instruction
Project to engage students in helping families with rare genetic diseases
Book Club Reader's Guide
Many challenging questions to stimulate thought and discussion.
Instructor's Guide
38 discussion questions to get students thinking and talking about gene therapy, including the science, ethical issues, and the drug approval process.
Narrative science
The Forever Fix is the uplifting true story of 8-year-old Corey Haas, who was cured of hereditary blindness just 4 days after gene therapy.
College Textbooks
A spectacularly-illustrated, clearly written human anatomy and physiology textbook, used in pre-health profession programs throughout the U.S.
A highly engaging, clearly written, beautifully illustrated introduction to the science of human genetics for the non-scientist. Now in its 11th edition, 12th to be published in September 2018.
Nonfiction
An ideal starting point for anyone who wants to know more about genes, DNA, genomes, and the genetic ties that bind us all.

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