DNA Today: A Genetics Podcast

Genetic testing can change the course of a patient’s care, but accessing the right test is not always straightforward.

Behind the scenes, insurance coverage decisions, documentation requirements, prior authorization, denials, appeals, and cost concerns can all influence whether a patient receives timely answers.

In this episode of DNA Today, we launch a new special series sponsored by Revvity in this episode exploring the health economics of genetic testing and the real-world systems that shape access to genomic medicine.

Host Kira Dineen is joined by Dr. Madhuri Hegde, Senior Vice President and Chief Scientific Officer at Revvity, and Mackenzie Mosera Derby, a pediatric genetic counselor at UW Health. Together, they examine genetic testing access from both the diagnostic laboratory and clinical perspectives exploring why insurance coverage remains so inconsistent, what goes into a prior authorization, why genetic tests are commonly denied, and how clinicians can approach appeals and peer-to-peer reviews.

In This Episode, We Discuss

Madhuri Hegde, PhD, FACMG, is the Senior Vice President and Chief Scientific Officer at Revvity, where she leads the company’s scientific strategy and oversees Revvity Omics’ global network of laboratories.

Dr. Hegde is a medical geneticist and an American Board of Medical Genetics and Genomics-certified diplomate in clinical molecular genetics. Her work focuses on advancing genomic technologies and expanding access to diagnostic testing for patients with rare and inherited conditions. Before joining industry, Dr. Hegde served as Executive Director of the Emory Genetics Laboratory and as a professor of human genetics and pediatrics at Emory University.

She has previously joined DNA Today to discuss whole-genome sequencing, Duchenne muscular dystrophy, and rapid genome sequencing in the neonatal intensive care unit.

Mackenzie Mosera Derby, MS, CGC, is a pediatric genetic counselor at UW Health and the University of Wisconsin–Madison Division of Genetics and Metabolism.

Her work includes pediatric and inpatient genetics, genetic testing utilization, clinical education, and improving the systems through which patients access genetic services.

Mackenzie also teaches genetic counseling students and brings experience examining how documentation, insurance authorization, utilization review, and multidisciplinary collaboration affect patient care.

Dr. Pradeep Bhide and Florida State Representative Adam Anderson discuss the Sunshine Genetics Act and a voluntary newborn genome-sequencing pilot program. The episode examines how earlier genomic testing could shorten the diagnostic odyssey and expand access to rare disease diagnoses for children and families.

Genetic counselor Stephanie Gandomi shares her experience working within health insurance and explores prior authorization, payer medical policies, laboratory market access, and the role genetic counselors can play in coverage decisions.

Dr. Hong Li and Dr. Madhuri Hegde discuss the use of rapid whole-genome sequencing for critically ill newborns, including how faster diagnoses may affect treatment, medical management, and healthcare utilization.

Genetic counselor Ann Martin and Dr. Madhuri Hegde explore the genetics of Duchenne muscular dystrophy, available genetic testing options, and emerging treatments.

Dr. Madhuri Hegde explains whole-genome sequencing, how it compares with other genetic testing approaches, and its growing role in diagnosing rare and inherited disorders.

This episode explores reproductive genetic testing, including insurance billing, prior authorization, self-pay options, and the financial considerations patients may encounter when pursuing testing.

You never have to wait long for a new episode of DNA Today, we release episodes every Friday! In the meantime, explore our library of over 400 episodes on Apple Podcasts, Spotify, DNAToday.com, or wherever you listen to podcasts. Just search “DNA Today.”

Prefer to watch? The video version of this episode is available on our YouTube channel and DNAToday.com. Select episodes are filmed in person, including some at the iconic NBCUniversal studios.

Discover more podcasts exploring genetics, genomics, medicine, and science from our network, Gene Pool Media: The Science Podcast Network.

DNA Today is hosted and executive produced by Kira Dineen, MS, LCGC, CG(ASCP)CM. Liv Davidson is our Social Media Lead and Eric Knaus is our Digital Marketing and Automation Lead. 

Follow us at @DNATodayPodcast on all platforms including Instagram, X, BluSky, Threads, LinkedIn, Facebook, YouTube and our website, DNAToday.com. 

Questions, partnership inquiries, and guest pitches can be sent to [email protected].

What happens when someone known for strength, stature, and intimidating roles faces a diagnosis most people do not associate with men?

Tyler Mane is known for playing Sabretooth in X-Men and Deadpool & Wolverine, Michael Myers in Halloween, and Ajax in Troy. Before his acting career, Tyler spent more than a decade wrestling professionally around the world, including appearances with WCW and UWF as Big Sky and Nitron. Recently, Tyler has taken on a very different role: raising awareness about male breast cancer.

Tyler joins host Kira Dineen to share his experience of discovering a breast lump, initially believing it was a lipoma, having his concerns dismissed, and ultimately receiving a breast cancer diagnosis. He opens up about his first instinct to keep the diagnosis private, the embarrassment he initially felt, and what motivated him to speak publicly.

You never have to wait long for a new episode of DNA Today, we release episodes every Friday! In the meantime, explore our library of over 400 episodes on Apple Podcasts, Spotify, DNAToday.com, or wherever you listen to podcasts. Just search “DNA Today.”

Prefer to watch? The video version of this episode is available on our YouTube channel and DNAToday.com. Select episodes are filmed in person, including some at the iconic NBCUniversal studios.

Discover more podcasts exploring genetics, genomics, medicine, and science from our network, Gene Pool Media: The Science Podcast Network.

DNA Today is hosted and executive produced by Kira Dineen, MS, LCGC, CG(ASCP)CM. Liv Davidson is our Social Media Lead and Eric Knaus is our Digital Marketing and Automation Lead. 

Follow us at @DNATodayPodcast on all platforms including Instagram, X, BluSky, Threads, LinkedIn, Facebook, YouTube and our website, DNAToday.com. 

Questions, partnership inquiries, and guest pitches can be sent to [email protected].

Preparing for the genetic counseling board exam can feel overwhelming. Between the extensive study materials, challenging practice questions, and uncertainty about what to expect on exam day, candidates often struggle to determine where to begin and how to use their preparation time effectively.

In this episode of DNA Today, host Kira Dineen is joined by Melanie Hardy and Amy Shikany to explore the new and updated resources available to candidates preparing for the American Board of Genetic Counseling (ABGC) Certification Examination.

Melanie Hardy is the 2026 President of ABGC, and Amy Shikany is ABGC President-Elect and a past Chair of the Certification and Education Committee.

Together, they discuss ABGC’s Certify webpage, the new CGC self-study guide, the approved references list, a new student webinar, and the updated practice examination that launched on June 15, 2026. They also take listeners behind the scenes of how the certification exam is developed, reviewed, and maintained.

One clarification from the conversation: candidates are provided access to a simple calculator during the certification exam.

Melanie Hardy, MS, CGC is the 2026 President of the American Board of Genetic Counseling. Through her leadership with ABGC, she supports the organization’s work to establish and maintain certification standards for the genetic counseling profession and provide resources for current and future certified genetic counselors.

Amy Shikany, MS, CGC is President-Elect of the American Board of Genetic Counseling and a past Chair of ABGC’s Certification and Education Committee. Her work with ABGC has included supporting the development, review, and ongoing maintenance of the genetic counseling certification examination.

Luckily you don’t have to wait long for a brand-new episode of DNA Today, we drop episodes every Friday! Until then, why not dive into our library of over 400 episodes? Binge them all on Apple Podcasts, Spotify, our website, or wherever you love to listen, just search “DNA Today.”

Prefer watching? We’ve got you covered! The video component of this episode is available on our YouTube channel and website. Some of these episodes were filmed at our home studio, the iconic NBC Universal Stamford Studios. 

DNA Today is hosted and produced by Kira Dineen, MS, LCGC, CG(ASCP)CM . Our Social Media Lead is Liv Davidson. Our Digital Marketing and Automation Lead is Eric Knaus. And the Graphic Designer of our logo is Ashlyn Enokian, MS, CGC. 

See what else we are up to on Instagram, X (Twitter), BluSky, Threads, LinkedIn, Facebook, YouTube and our website, DNAToday.com. Questions/inquiries can be sent to [email protected].

What happens when DNA from a decades-old crime scene meets a family tree created generations later?

That combination helped investigators identify the Golden State Killer and transformed how law enforcement approaches some of the country’s most difficult cold cases.

Content warning: This episode includes discussions of murder, sexual assault, suicide, and other sensitive topics.

In this episode of DNA Today, host Kira Dineen speaks with Paul Holes, a retired cold-case investigator, New York Times bestselling author, podcaster, and television host. During his 27-year career with the Contra Costa County Sheriff’s and District Attorney’s Offices, Paul worked on some of the most infamous cases in American criminal history, including the Zodiac murders, the kidnapping of Jaycee Dugard, and the investigation that ultimately identified Joseph DeAngelo as the Golden State Killer.

Paul is also the author of Unmasked: My Life Solving America’s Cold Cases, co-host of the podcast Small Town Dicks, and one of the investigators featured in the television special Celebrity Crime Scene: Marilyn Monroe, available on Hulu.

We explore the science, strategy, and ethical complexity behind cold-case investigations. Paul shares how investigators determine whether decades-old evidence still holds value, what kind of DNA evidence would be needed to scientifically resolve the Zodiac case, and why older biological samples create difficult decisions about whether to test now or preserve evidence for future technologies.

The episode also dives into the landmark investigation that identified the Golden State Killer. Paul walks through how traditional forensic DNA databases failed to produce a match, why investigative genetic genealogy changed the direction of the case, and how distant relatives’ DNA helped investigators build family trees that eventually led to Joseph DeAngelo.

Later in the episode, Paul discusses his latest project, Celebrity Crime Scene: Marilyn Monroe, and how modern virtual reconstruction can be used to reexamine a historic death scene more than six decades later.

Paul Holes is a retired cold-case investigator, New York Times bestselling author, podcaster, and television host. During his 27-year career with the Contra Costa County Sheriff’s and District Attorney’s Offices, he investigated some of the country’s most complex and high-profile cases, including the Zodiac murders, the kidnapping of Jaycee Dugard, and the Golden State Killer case.

Paul’s work helped bring national attention to the power of investigative genetic genealogy, particularly through the identification of Joseph DeAngelo as the Golden State Killer. He is the author of Unmasked: My Life Solving America’s Cold Cases, co-host of Small Town Dicks, and appears in Celebrity Crime Scene: Marilyn Monroe.

#326: How DNA Solves Crimes: The Forensic Science Behind True Crime

#131: DTC Series: Libby Copeland on Law Enforcement Use of Genetic Databases

#130 DTC Series: Anne Greb on 23andMe

Luckily you don’t have to wait long for a brand-new episode of DNA Today, we drop episodes every Friday! Until then, why not dive into our library of over 400 episodes? Binge them all on Apple Podcasts, Spotify, our website, or wherever you love to listen, just search “DNA Today.”

Prefer watching? We’ve got you covered! The video component of this episode is available on our YouTube channel and website. Some of these episodes were filmed at our home studio, the iconic NBC Universal Stamford Studios. 

DNA Today is hosted and produced by Kira Dineen, MS, LCGC, CG(ASCP)CM . Our Social Media Lead is Liv Davidson. Our Digital Marketing and Automation Lead is Eric Knaus. And the Graphic Designer of our logo is Ashlyn Enokian, MS, CGC. 

See what else we are up to on Instagram, X (Twitter), BluSky, Threads, LinkedIn, Facebook, YouTube and our website, DNAToday.com. Questions/inquiries can be sent to [email protected]. 

Just a few years ago, there were no pharmacological treatments for patients with achondroplasia. Today, with multiple therapies on the market, the conversation has shifted from if we can treat to how we treat safely, consistently, and thoughtfully. 

In this third and final installment of our achondroplasia series, sponsored by BioMarin, we explore the recently published international consensus guidelines for vosoritide. These guidelines provide a roadmap for the entire treatment lifecycle, from the initial diagnosis and counseling to initiation, monitoring, and eventually, the transition off therapy.  You can review the prescribing information for vosoritide here with additional safety information, including about the risk of low blood pressure.  

Joining us in-person all the way from Australia is the lead author of these guidelines, Dr. Ravi Savarirayan. Dr. Savarirayan is a global leader in skeletal dysplasia and has been a driving force in the clinical development of vosoritide from its earliest stages. 

The Journey of Vosoritide: Dr. Savarirayan shares his personal "why", from the early research phases to the clinical trials that changed the landscape of skeletal dysplasia care. 

Precision Medicine at the Molecular Level: How vosoritide acts as the first precision medicine approved for achondroplasia by targeting and counteracting overactive FGFR3 signaling, along with important safety information such as a risk for low blood pressure 

The International Guidelines: Why a global consensus was necessary and how it addresses gaps in real-world clinical practice. 

The Treatment Lifecycle: 

The Future of Care: How these guidelines will evolve as we gather more long-term, real-world data. 

Ravi Savarirayan is consultant clinical geneticist at Victorian Clinical Genetics Services, Professorial fellow at the University of Melbourne, and Group leader (Molecular Therapies at Murdoch Children’s Research Institute, Victoria, Australia. 

Professor Savarirayan received his MBBS from the University of Adelaide, Australia in 1990 and became a Fellow of the Royal Australasian College of Physicians in 1997. He was certified as a specialist in Clinical Genetics by the Human Genetics Society of Australasia in 1998 and was awarded his Doctor of Medicine from the University of Melbourne in 2004. He was awarded the Fulbright Professional Scholarship for Australia in 1998, and took this up at University of California, Los Angeles (UCLA). 

Professor Savarirayan’s primary research focus is on inherited disorders of the skeleton causing short stature, arthritis, and osteoporosis. He has published over 230 peer-reviewed articles and received over $35M in research funding, collaborating with researchers from 40 countries.  

His current clinical trial activities are pioneering disruptive new therapies for the treatment of genetic disorders. He was the global lead investigator of the clinical development program that identified vosoritide as the first precision therapy for children with achondroplasia. He was recently named one of the 30 “Brilliant minds” of the Murdoch Children’s Research Institute over the past 30 years, was awarded the Institute’s research excellence award in 2020, and is an NHMRC Leadership Fellow. 

We talk about the journey to vosoritide, Dr. Ravi’s personal history with achondroplasia research, published treatment guidelines and how vosoritide is approved under accelerated approval to increase linear growth in pediatric patients with achondroplasia with open epiphyses.  We also discuss the most serious side effect seen—transient decreases in blood pressure, which is why patients should have adequate food and fluid intake prior to administration.  We also cover that it is a daily injection and that injection site reactions are the most common side effect and some patients also experienced vomiting, injection site urticaria, arthralgia, decreased blood pressure, and gastroenteritis.  Those aren't all the side effects, so please refer to the prescribing information here for more information about vosoritide. 

Savarirayan, R., Hoover-Fong, J., Ozono, K. et al. International consensus guidelines on the implementation and monitoring of vosoritide therapy in individuals with achondroplasia. Nat Rev Endocrinol 21, 314–324 (2025). https://doi.org/10.1038/s41574-024-01074-9 

Here is a list of Dr. Ravi Savarirayan’s publications, there are far too many to list them all here.   

Dr. Ravi Savarirayan Video Explaining Vosoritide  

Luckily, you don’t have to wait long for a brand-new episode of DNA Today, we drop episodes every Friday! Until then, why not dive into our library of over 400 episodes? Binge them all on Apple Podcasts, Spotify, our website, or wherever you love to listen, just search “DNA Today.” 

Prefer watching? We’ve got you covered! For years, we’ve been recording episodes with video, including some filmed at the iconic NBC Universal Stamford Studios. Check them out on our YouTube channel!  

DNA Today is hosted and produced by Kira Dineen, MS, LCGC, CG(ASCP)CM . Our Social Media Lead is Liv Davidson. Our Digital Marketing and Automation Lead is Eric Knaus. Our makeup artist for recordings at NBC Universal is Sharon DeMasi. Our logo Graphic Designer is Ashlyn Enokian, MS, CGC.  

See what else we are up to on Instagram, X (Twitter), BluSky, Threads, LinkedIn, Facebook, YouTube and our website, DNAToday.com. Questions/inquiries can be sent to [email protected]. 

Four hundred episodes. Nearly fourteen years of conversations. One podcast that began with a high school student, a Rock Band microphone, and a deep curiosity about genetics.

For this milestone episode, DNA Today is turning the microphone around. Kira Dineen is joined by Jess Rizzo, a 2026 graduate of the Rutgers University Genetic Counseling Master’s Program, to look back at the evolution of DNA Today, from its earliest episodes in 2012 to becoming a multi-award-winning genetics podcast and the foundation for Gene Pool Media.

Kira shares how the original idea for DNA Today came together, where the name came from, and what she remembers about recording those first episodes. She also reflects on the major turning points that shaped the podcast, including its first sponsorship, conversations with prominent leaders in genetics, and interviews that changed how she thinks about both science and storytelling.

The conversation explores what makes someone an effective science communicator, what separates a good podcast guest from an unforgettable one, and how DNA Today expanded into Gene Pool Media. Kira also looks ahead to the future of the podcast and considers whether the version of herself who started the show in 2012 could ever have imagined reaching Episode 400.

The episode concludes with a rapid-fire round of “DNA Today Superlatives,” featuring Kira’s dream guests, proudest episode production, most surprising topics, most popular episode, and the conversations that have had the greatest personal impact on her.

An exciting announcement, since recording we learned we have been ranked number one on Million Podcast’s list of “Best DNA Podcasts in the US”.  

Thank you to our audience for sticking with us! Whether you have been listening since 2012, or last week. We appreciate your support in growing DNA Today over the last 14 years. 

Kira Dineen, MS, LCGC, CG(ASCP)CM (she/her) has 15 years of podcast experience fueled by a passion for science communication. She has hosted and/or produced a dozen podcasts, many of which are in her science podcast network: Gene Pool Media. Her flagship show, DNA Today, is in the top 1% of podcasts globally. Listeners Discover New Advances in the world of genetics through Kira’s interviews about genetic technology, disorders, and news. The show has won the Best Science and Medicine Podcast Award for three years, among others. Over the last 14 years, DNA Today has produced over 400 episodes with support from over 100 sponsors. She was accepted into The Podcast Academy and previously served on the National Society of Genetic Counselor’s Digital Ambassador program. Kira received her Diagnostic Genetic Bachelor’s of Science degree at the University of Connecticut and is a certified Cytogenetic Technologist. She received her Master’s of Science at Sarah Lawrence College and is a practicing licensed certified genetic counselor at a high risk pregnancy center in Connecticut. Kira serves as an adjunct faculty member at Bay Path University teaching Ethics and Reproductive Genetics. 

Luckily you don’t have to wait long for a brand-new episode of DNA Today, we drop episodes every Friday! Until then, why not dive into our library of over 400 episodes? Binge them all on Apple Podcasts, Spotify, our website, or wherever you love to listen, just search “DNA Today.”

Prefer watching? We’ve got you covered! The video component of this episode is available on our YouTube channel and website. Some of these episodes were filmed at our home studio, the iconic NBC Universal Stamford Studios. 

DNA Today is hosted and produced by Kira Dineen, MS, LCGC, CG(ASCP)CM . Our Social Media Lead is Liv Davidson. Our Digital Marketing and Automation Lead is Eric Knaus. And the Graphic Designer of our logo is Ashlyn Enokian, MS, CGC. 

See what else we are up to on Instagram, X (Twitter), BluSky, Threads, LinkedIn, Facebook, YouTube and our website, DNAToday.com. Questions/inquiries can be sent to [email protected]. 

What condition helped spark the creation of newborn screening in the United States? It was Phenylketonuria, or PKU, a rare inherited metabolic disorder that forever changed how we identify and treat genetic conditions from the very start of life.

In this in-person episode of DNA Today, we kick off a three-part series on phenylketonuria, better known as PKU, by looking at how one condition became central to a major public health shift. Host Kira Dineen is joined in person by Sarah Chamberlin and Ryan Miller to explore the scientific, clinical, historical, and deeply personal sides of PKU.

We explore the history of newborn screening itself, including the work of Dr. Robert Guthrie and the development of the Guthrie card. Sarah brings a remarkable piece of history to the recording: the original stamp used to create early Guthrie cards.

Ryan, Sarah, and Kira unpack why PKU remains both a newborn screening success story and an ongoing challenge. From treatment access and medical nutrition coverage to state-by-state differences in newborn screening panels and the promise and complexity of newborn sequencing, this episode shows why PKU is still shaping conversations about genetics, public health, and rare disease care.

Thank you to PTC Therapeutics for sponsoring this three-part series on PKU.

Our guests are participating in this podcast to share their experience and opinions only. They are not providing any medical advice. Always check with your healthcare provider for treatment and screening advice.

Sarah Chamberlin is a parent of a child with PKU and a founder and the Chief Program Officer of flok, a patient advocacy organization supporting individuals and families affected by inherited metabolic disorders.

Ryan Miller is Senior Director, Field Medical Lead at PTC Therapeutics on the U.S. Medical Affairs Metabolism team, where he supports PKU. He is trained as a genetic counselor.

Luckily you don’t have to wait long for a brand-new episode of DNA Today, we drop episodes every Friday! Until then, why not dive into our library of over 400 episodes? Binge them all on Apple Podcasts, Spotify, our website, or wherever you love to listen, just search “DNA Today.”

Prefer watching? We’ve got you covered! The video component of this episode is available on our YouTube channel and website. Some of these episodes were filmed at our home studio, the iconic NBC Universal Stamford Studios. 

DNA Today is hosted and produced by Kira Dineen, MS, LCGC, CG(ASCP)CM . Our Social Media Lead is Liv Davidson. Our Digital Marketing and Automation Lead is Eric Knaus. And the Graphic Designer of our logo is Ashlyn Enokian, MS, CGC. 

See what else we are up to on Instagram, X (Twitter), BluSky, Threads, LinkedIn, Facebook, YouTube and our website, DNAToday.com. Questions/inquiries can be sent to [email protected]. 

What if the future of human health doesn’t just begin in the clinic, but in the soil?

In this episode of DNA Today, we explore the new documentary Groundswell, the final chapter in the regenerative agriculture documentary trilogy that began with Kiss the Ground and continued with Common Ground. Narrated by Demi Moore and Woody Harrelson, Groundswell follows regenerative agriculture solutions across five continents, showing how restoring soil health can support biodiversity, food systems, local economies, climate resilience, and human health.

This episode takes DNA Today into a different but deeply relevant corner of genetics and genomics. While we often focus on human genetics, Groundswell broadens the lens to show how genetics is embedded in entire ecosystems.

Soil is alive with microbial diversity. Plants depend on complex relationships with bacteria, fungi, insects, and the environment around them. Crop diversity and seed diversity can influence resilience to drought, pests, disease, and changing climate conditions. Human health is also shaped not only by our DNA, but by the environments we live in, the food we eat, the water we drink, the chemicals we are exposed to, and the microbes we encounter.

Joining us are Nikki Reed, co-producer of Groundswell, and Rebecca Harrell Tickell, co-director of the film. 

Many listeners will know Nikki from her role as Rosalie Hale in The Twilight Saga, as well as her work in Thirteen, which she co-wrote and starred in, and her role in The O.C. Beyond acting, Nikki is also a filmmaker, farmer, entrepreneur, and environmental advocate.

Rebecca Harrell Tickell is an award-winning filmmaker, producer, and environmental activist whose work includes Kiss the Ground, Common Ground, and now Groundswell. Through this trilogy, Rebecca and her collaborators have helped bring regenerative agriculture into mainstream conversations about climate, food, health, and the future of farming.

This episode includes a passionate discussion about regenerative agriculture, pesticides, cancer, fertility, carbon, and soil health. As with many topics at the intersection of environment and health, the science is complex. Here are a few important clarifications and sources for our audience members who want to dig deeper.

The episode references concern about rising cancer rates, including pediatric cancer and cancers in younger adults. The most accurate summary is nuanced. For childhood and adolescent cancers in the U.S., a 2025 analysis found that age-standardized cancer incidence increased from 2001 to 2016, then decreased from 2016 to 2022. Cancer death rates among U.S. youth ages 0–19 also declined 24% from 2001 to 2021, according to CDC/NCHS data. Read the study in Cancer Discovery.

At the same time, early-onset colorectal cancer has clearly been increasing. The American Cancer Society reports that colorectal cancer death rates in adults under 50 have increased by about 1% per year since 2004, even as rates have declined among many older adults. Researchers are actively studying potential contributors, including diet, obesity, sedentary behavior, environmental exposures, microbiome changes, and other factors, but there is not one single proven cause. Read more from the American Cancer Society.

The episode discusses pesticides and their potential effects on human health. A careful way to frame this is that some pesticide exposures have been associated with biological effects, including possible epigenetic changes and reproductive health concerns, especially at higher or occupational exposure levels. 

Risk depends on the specific chemical, dose, route of exposure, timing, and individual susceptibility. For glyphosate specifically, there is disagreement among major scientific and regulatory bodies. The U.S. Environmental Protection Agency states that it does not agree with the International Agency for Research on Cancer’s conclusion that glyphosate is “probably carcinogenic to humans.” EPA’s position is that glyphosate is not likely to be carcinogenic to humans when used according to current labeling, while IARC classified glyphosate as “probably carcinogenic to humans” in 2015. Read EPA’s glyphosate overview.

There is also research connecting some pesticide exposures with male fertility markers. A 2022 review found epidemiological evidence supporting associations between pesticide exposure and male fertility outcomes, including semen quality, particularly among workers and exposed populations. Read the review in Toxics.

Regenerative agriculture and improved soil health can play an important role in carbon storage, water retention, and climate resilience. However, soil carbon sequestration should be understood as one climate tool, not a complete solution on its own. Fossil fuel emissions remain the dominant driver of human-caused carbon dioxide emissions.

The Global Carbon Project projected total anthropogenic CO₂ emissions from fossil fuels and land-use change at about 41.6 GtCO₂ in 2024, with fossil CO₂ emissions alone projected at 37.4 GtCO₂. This means land management matters, but reducing fossil fuel emissions remains essential. Read the Global Carbon Budget 2024.

The episode discusses major global soil loss and degradation. A commonly cited estimate from the Food and Agriculture Organization of the United Nations is that nearly one-third of the world’s soils are degraded, posing a serious threat to food security. Soil degradation can include erosion, loss of organic matter, nutrient depletion, contamination, salinization, compaction, and reduced biodiversity. Because estimates vary depending on definitions and measurement methods, overly specific claims about the exact amount of topsoil lost should be interpreted with caution unless tied to a specific source. Read more from FAO.

The film and episode discuss the idea that regenerative agriculture can support more nutrient-dense food. There is emerging research suggesting that soil health, microbial diversity, plant biodiversity, and farming practices may influence nutrient profiles in food. However, this is still an active area of research, and outcomes likely vary by crop, region, soil type, farming system, and measurement method.

A 2025 review in Frontiers in Nutrition describes regenerative agriculture as a promising pathway for producing nutrient-dense crops while also noting significant gaps in quantifiable research and policy needed for broader adoption. Read the review in Frontiers in Nutrition.

Luckily you don’t have to wait long for a brand-new episode of DNA Today, we drop episodes every Friday! Until then, why not dive into our library of over 390 episodes? Binge them all on Apple Podcasts, Spotify, our website, or wherever you love to listen, just search “DNA Today.”

Prefer watching? We’ve got you covered! The video component of this episode is available on our YouTube channel and website. Some of these episodes were filmed at our home studio, the iconic NBC Universal Stamford Studios. 

DNA Today is hosted and produced by Kira Dineen, MS, LCGC, CG(ASCP)CM . Our Social Media Lead is Liv Davidson. Our Digital Marketing and Automation Lead is Eric Knaus. And the Graphic Designer of our logo is Ashlyn Enokian, MS, CGC. 

See what else we are up to on Instagram, X (Twitter), BluSky, Threads, LinkedIn, Facebook, YouTube and our website, DNAToday.com. Questions/inquiries can be sent to [email protected].

Recertification is changing for genetic counselors. The American Board of Genetic Counseling (ABGC) now requires completion of new Continuing Competence Learning Scenarios as part of maintaining the CGC credential.

These are not traditional quizzes with one correct answer. Each scenario presents a complex genetic counseling situation, followed by reflective questions, peer rationales, and educational resources designed to support lifelong learning and continuing competence.

To help us understand why this change was made and what genetic counselors need to know, we are joined by three guests from ABGC: Monica Marvin and Dr. Claire Davis, co-chairs of ABGC’s Continuing Competence Committee, and Heather Rich, Executive Director at Smithbucklin, who manages ABGC operations.

We break down why these Learning Scenarios were created, how the requirement works, what counts toward recertification, and how ABGC is approaching competence in a field where many real-world situations are nuanced, reflective, and shaped by context.

Monica Marvin, MS, CGC, is the Program Director for the University of Michigan Genetic Counseling Graduate Program and Clinical Professor of Internal Medicine and Human Genetics at the University of Michigan. Monica was the inaugural President of the Michigan Association of Genetic Counselors, the 2011 Chair of the National Society of Genetic Counselors Access and Service Delivery Committee and the 2014 Chair of the National Society of Genetic Counselors Payor Subcommittee. She also served on the Board of Directors for the National Society of Genetic Counselors in 2016 and 2017 and is a current member of the Accreditation Council of Genetic Counselors Program Review Committee. In addition, Monica serves on the Advisory Board for multiple genetic counseling programs, and is the co-chair of the American Board of Genetic Counselors Continuing Competence Committee. She received the 2014 Strategic Leader award from the National Society of Genetic Counselors and was instrumental in the 2018 passage of legislation to license genetic counselors in the state of Michigan. She is passionate about the provision of high-quality genetic counseling services.

Claire Davis, EDD, MS, CGC has contributed to the learning, growth, and development of genetic counselors for 19 years. She received her Master of Science in Genetic Counseling from the Icahn School of Medicine at Mount Sinai in 2007. She earned a doctorate in Adult Learning and Leadership from Teachers College, Columbia University, completing a dissertation on how genetic counselors learn to incorporate innovations into their practice. A deep love of GC education prompted her to serve as a genetic counseling program director, course director, clinical supervisor, thesis advisor, simulation facilitator, committee volunteer, and author of articles and a book. She is currently Director of Curriculum for the Institute for Genomics at Sarah Lawrence College and Co-director of the Genome Health Analysis master’s program co-created with NYU Langone’s Grossman School of Medicine.

Heather Rich, MPA, ICE-CCP, is an Executive Director with Smithbucklin, bringing over 20 years of experience in certification, including oversight of more than 23 credentialing programs. She currently serves as Executive Director for the American Board of Genetic Counseling (ABGC). Ms. Rich possesses extensive expertise across all facets of certification, including governance, program development, and accreditation standards. She has successfully led multiple organizations through reaccreditation processes with both the American Board of Specialty Nursing Certification (ABSNC) and the National Commission for Certifying Agencies (NCCA). In addition to her professional responsibilities, Ms. Rich has been an active volunteer with the Institute for Credentialing Excellence since 2014 and currently serves as a Public Member on the Rehabilitation Nursing Certification Board.

Are you a genetic counselor looking to earn CEUs, but struggling to find the time to sit down and complete them? Gene Pool Media has you covered with Listen & Learn: A Rare Disease Podcast Course. 

This affordable CEU course allows you to earn credits by listening to a curated playlist of podcast episodes from Gene Pool Media shows, including DNA Today and All Access DNA, and completing a few short quizzes. The course features episodes focused on rare diseases and includes 10 hours of podcast content, meaning you can earn 1.0 CEU.

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Luckily you don’t have to wait long for a brand-new episode of DNA Today, we drop episodes every Friday! Until then, why not dive into our library of over 390 episodes? Binge them all on Apple Podcasts, Spotify, our website, or wherever you love to listen, just search “DNA Today.”

Prefer watching? We’ve got you covered! The video component of this episode is available on our YouTube channel and website. Some of these episodes were filmed at our home studio, the iconic NBC Universal Stamford Studios. 

DNA Today is hosted and produced by Kira Dineen, MS, LCGC, CG(ASCP)CM . Our Social Media Lead is Liv Davidson. Our Digital Marketing and Automation Lead is Eric Knaus. And the Graphic Designer of our logo is Ashlyn Enokian, MS, CGC. 

See what else we are up to on Instagram, X (Twitter), BluSky, Threads, LinkedIn, Facebook, YouTube and our website, DNAToday.com. Questions/inquiries can be sent to [email protected]. 

Anxiety is one of the most common mental health conditions, but for many people, it can also feel deeply isolating. Current treatments such as therapy, SSRIs, and benzodiazepines can be life-changing, but they do not work for everyone, and they often manage symptoms rather than addressing the underlying biology of anxiety.

In this episode of DNA Today, host Kira Dineen is joined by Dr. Troy Rohn, neuroscientist, professor at Boise State University, and Co-founder and Director of Preclinical Studies at Cognigenics. Dr. Rohn is also the author of Brain Medicine: Breakthroughs in Gene Therapy for Anxiety & Other Neuropsychiatric Disorders, a brand new book exploring how CRISPR, RNA interference, neurogenetics, and precision psychiatry could reshape the future of mental health treatment.

We take a deeply personal and scientific look at anxiety. Dr. Rohn shares how his own experiences with chronic anxiety and PTSD helped inspire his work, while also explaining the brain biology behind anxiety, including the roles of serotonin, GABA, the amygdala, hippocampus, insula, and thalamus.

A major focus of the episode is the 5-HT2A serotonin receptor, produced through the HTR2A gene, and why this receptor has become an important target in Dr. Rohn’s preclinical research. Kira and Dr. Rohn explore how today’s treatments broadly influence serotonin signaling, while emerging gene-based approaches may someday allow researchers to more precisely reduce or silence specific pathways involved in anxiety.

The episode also breaks down the difference between CRISPR gene editing and RNA interference, including why reversibility, safety, off-target effects, and long-term consequences matter so much when discussing potential therapies for the brain. Dr. Rohn also explains one of the biggest challenges in the field: getting therapies across the blood-brain barrier.

Because this science is still preclinical, the conversation also focuses on how to talk about hope responsibly. Could gene therapy someday help treat anxiety at its source? Possibly. But there are major scientific, regulatory, ethical, and access questions that need to be answered before these approaches could become part of clinical care.

Guest Bio

Dr. Troy Rohn is a neuroscientist, professor at Boise State University, and Co-founder and Director of Preclinical Studies at Cognigenics. His research has focused on neurological disorders, including Alzheimer’s disease, anxiety, and memory impairment. In his book Brain Medicine: Breakthroughs in Gene Therapy for Anxiety & Other Neuropsychiatric Disorders, Dr. Rohn explores how gene therapy, CRISPR, RNA interference, and precision psychiatry could open new possibilities for treating anxiety and other brain-based conditions.

About the Book

Brain Medicine: Breakthroughs in Gene Therapy for Anxiety & Other Neuropsychiatric Disorders explores the future of mental health treatment through the lens of gene therapy and neurogenetics. Blending personal story with neuroscience, Dr. Troy Rohn examines how technologies like CRISPR and RNA interference may one day allow researchers to target anxiety-related pathways with greater precision than current medications.

The book also addresses the scientific and ethical complexities of this field, including safety, access, regulatory approval, the blood-brain barrier, and the challenge of moving from promising preclinical research to human clinical trials.

5-HT2A receptor: A serotonin receptor involved in brain signaling, mood, perception, cognition, and emotional processing.

HTR2A gene: The gene that provides instructions for making the 5-HT2A serotonin receptor.

SSRI: Selective serotonin reuptake inhibitor, a class of medications commonly used to treat anxiety and depression by increasing serotonin availability in the brain. Examples are Lexapro, Zoloft, Prozac, Paxil, among others. 

CRISPR: A gene-editing technology that can be used to make targeted changes to DNA.

RNA interference: A process that can reduce or silence gene expression by targeting RNA before a protein is made.

Blood-brain barrier: A protective barrier that helps regulate what substances can enter the brain from the bloodstream, making delivery of brain-targeted therapies especially challenging. Blood-brain border might be a more accurate and helpful term as some molecules are allowed past. 

Precision psychiatry: An emerging approach that aims to tailor mental health treatment based on a person’s biology, genetics, symptoms, and lived experience.

Brain Medicine: Breakthroughs in Gene Therapy for Anxiety & Other Neuropsychiatric Disorders by Dr. Troy Rohn

Cognigenics

#198 CRISPR Ethics with Sam Sternberg

#288 CRISPR Cured Victoria Gray’s Sickle Cell: Part 1

#289 CRISPR Cured Victoria Gray’s Sickle Cell: Part 2

#304 HBO’s “Six Schizophrenic Brothers” Sister and Advocate Lindsay Mary Galvin Rauch

#343 The First Child to Receive CRISPR for Duchenne? A Father’s Fight for a Cure

#354 How Pharmacogenomics is Revolutionizing Drug Prescriptions

Luckily you don’t have to wait long for a brand-new episode of DNA Today, we drop episodes every Friday! Until then, why not dive into our library of over 395 episodes? Binge them all on Apple Podcasts, Spotify, our website, or wherever you love to listen, just search “DNA Today.”

Prefer watching? We’ve got you covered! The video component of this episode is available on our YouTube channel and website. Some of these episodes were filmed at our home studio, the iconic NBC Universal Stamford Studios. 

DNA Today is hosted and produced by Kira Dineen, MS, LCGC, CG(ASCP)CM . Our Social Media Lead is Liv Davidson. Our Digital Marketing and Automation Lead is Eric Knaus. And the Graphic Designer of our logo is Ashlyn Enokian, MS, CGC. 

See what else we are up to on Instagram, X (Twitter), BluSky, Threads, LinkedIn, Facebook, YouTube and our website, DNAToday.com. Questions/inquiries can be sent to [email protected].