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

Genetic Linkage

When a Disease is Genetic but not Inherited: Bea Rienhoff's Story

July 4, 2013

Tags: exome sequencing, mutation, textbook, human genetics

Hugh and Bea Rienhoff (credit: Leah Fasten)
Genetics is the study of genes, DNA, and variation; heredity is the passing of inherited traits from parents to offspring. Families with one member, typically a child, who has a collection of unusual symptoms that don’t fit any clinical diagnosis may in fact have a genetic disease – but one that arose spontaneously in the child, rather than having been inherited from carrier parents.

Exome sequencing is helping to solve these genetics-but-not-heredity mysteries. The story of one little girl and her father’s efforts to find her mutant gene, and how the tale wove in and out and now back into my human genetics textbook, illustrates the evolution of personalized genomic medicine.

THE BEA PROJECT
When Hugh Rienhoff first saw his daughter Bea, born in December 2003, he knew something was wrong. Her long feet, clenched fingers, poor muscle tone, widely-spaced hazel eyes, and a facial birthmark might have been just peculiarities to anyone who wasn’t also a physician and a geneticist. (more…)

DNA Day: 20 Years of Writing a Human Genetics Textbook

April 19, 2013

Tags: human genome, DNA, genetics, Gregor Mendel, cystic fibrosis, textbook

10 editions of my textbook chronicle the evolution of genomics
This month we celebrate the DNA anniversaries: unveiling of DNA’s structure in 1953, and the human genome sequence in 2003.

From now until DNA Day, April 25, bloggers will be worshipping the human genome. Nature will offer podcasts (“PastCasts”) and last week, Eric Green, director of the National Human Genome Research Institute, spoke to reporters, summarizing the “quantitative advances since the human genome project.”

It’s also the 20th anniversary of my non-science majors textbook, Human Genetics: Concepts and Applications. Writing the 10 editions has given me a panoramic view of the birth of genomics different from those of researchers, physicians, and journalists. Here are a few observations on the evolution of genetics to genomics, as I begin the next edition. (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 10th edition.
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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