
Amplifying Awareness: Understanding Autosomal Dominant Nonsyndromic Hearing Loss 56
Sound travels through the tectorial membrane, which a CEACAM16 missense variant disturbs in ADNSHL 56. Families with a history can be tested before symptoms.

MD · MBA
Physician specializing in genetic analysis and personalized preventive medicine, and author of Outsmart Your Genes.
Brandon Colby is a physician-expert in the fields of genetic analysis and Personalized Preventive Medicine. He holds an MD from the Mount Sinai School of Medicine, an MBA from Stanford University's Graduate School of Business, and a degree in Genetics from the University of Michigan.
Dr. Colby is the author of the book Outsmart Your Genes and has developed numerous technologies that improve the analysis, interpretation, and actionability of genome sequencing data. He is an Affiliate Specialist of the American College of Medical Genetics and Genomics (ACMG), an Associate of the American College of Preventive Medicine (ACPM), and a member of the National Society of Genetic Counselors (NSGC).
Articles by Brandon Colby, MD are reviewed for accuracy by Sequencing's medical and scientific team. This page is for informational purposes and does not constitute medical advice.

Sound travels through the tectorial membrane, which a CEACAM16 missense variant disturbs in ADNSHL 56. Families with a history can be tested before symptoms.

When a person inherits two mutated gene copies, one from each parent, autosomal recessive hearing loss with no other symptoms can result; PKHD1L1 is one cause.

Without genetic insight ARNSHL76 is hard to tell apart from other hearing loss; sequencing PKHD1L1 can confirm it, supported by work in mice and zebrafish.

Natural killer cells lose the ability to destroy infected and cancerous cells in this inherited disorder. Testing pinpoints the mutation and guides treatment.

Faults in ITPR1, the gene for a calcium-signaling receptor in neurons, produce the balance, coordination and speech problems that define SCAR15.

A case report of a middle-aged man with obsessive-compulsive symptoms shows why IBGC5 belongs in psychiatric evaluations, and where DNA testing fits alongside imaging.

NR2F1 guides brain development, and its mutations cause BBSOAS, with visual impairment and neurodevelopmental delays. Sequencing the gene can find the variant.

An autosomal dominant disorder, CF8 brings lasting Candida infections of the skin, nails and mucous membranes, and gene testing can confirm a clinical diagnosis.