Behind the Genes cover art

Behind the Genes

Behind the Genes

By: Genomics England
Listen for free

At Genomics England, our vision is a world where everyone benefits from genomic healthcare.

From the latest research to the lived experiences of those affected by rare conditions and cancer, Behind the Genes brings you closer to the people behind the science.

Each month, we release a deep-dive episode, alongside our Genomics 101 series - short explainers designed to make complex terms in genetics and genomics easier to understand.

Copyright 2021 All rights reserved. Biological Sciences Science Social Sciences
Episodes
  • Could taking aspirin halve the risk of bowel cancer?

    Could taking aspirin halve the risk of bowel cancer?
    Jun 24 2026
    A daily low dose of aspirin could significantly reduce the risk of bowel cancer in people with Lynch syndrome, an inherited condition that increases the likelihood of developing certain cancers. In this episode, we explore the findings from the landmark CaPP3 trial, hear from a participant living with Lynch syndrome, and discuss how genomics could help shift healthcare from treatment to prevention. Our host, Sharon Jones is joined by: Dr Katie Snape, Principal Clinician for Population Health at Genomics England Professor Sir John Burn, Professor of Clinical Genetics at Newcastle University Drew Hyde, participant in the Cancer Prevention Programme (CaPP3) Links: Listen to: How can genomics help us understand cancer? "I think knowing is always a good thing. And obviously, I wish I'd known earlier, and then, I could have taken more measures earlier on. So I think knowledge is definitely a good thing. And it would be great if more people could be tested or could find out if they were carriers at an early age, I think." You can download the transcript or read it below. [00:00:00] Sharon: Welcome to Behind the Genes. In today's episode, we'll explore the research which shows how a low dose of aspirin can halve the risk of bowel cancer in people with Lynch syndrome. We'll hear about the real-life impact of living with the condition, and look at how genomics can help shape a more preventative approach to care in the future. [00:00:20] I'm Sharon Jones, and to help us unpack all of that, I'm joined by our guests, Dr. Katie Snape, principal clinician for population health at Genomics England; Sir John Burn, professor of clinical genetics at Newcastle University; and Drew Hyde, a participant in the Cancer Prevention Programme, which is also known as the CaPP3 trial. [00:00:42] So to start with the basics, Katie, can you walk us through what cancer is in simple terms? [00:00:50] Katie: Sure, Sharon. So, our body is made up of cells. Those are the building blocks that, that make us as humans and other creatures and plants. And our cells need to keep dividing throughout our lifetime as our bodies are growing and working normally. [00:01:06] And so we need to have processes in place in our body where our cells can divide, but then also stop dividing when we don't need them to carry on dividing. What happens in a cancer cell is basically that cell becomes abnormal, and it doesn't follow the normal checks and balances and rules of cell division. [00:01:23] So it starts to divide and grow uncontrollably, and it can start to invade other tissues and obviously, that can cause serious consequences. [00:01:33] Sharon: We'll hear a lot more from Dr. Katie Snape in this episode. But before we move on, I just wanted to flag that there was an episode of our Genomics 101 explainer series with Katie dedicated to helping us get to grips with how genomics can help us understand and diagnose cancer. [00:01:47] Do go and check that out. We'll put a link to that in the episode description. [00:01:54] So the World Health Organization estimates between 30 to 50% of all cancers are preventable. So, Katie, when we talk about cancer being preventable, what does that actually mean? And what's an example of cancer prevention that people might already know? [00:02:11] Katie: Yeah. So some cancers are due to chance or just mistakes happening as our cells copy. [00:02:19] Other cancers are because there has been damage to the genetic information within the cell that can be caused by certain things that can cause damage to DNA. So for example, a sort of obvious answer would be skin cancer. Skin cancers can be caused by sunlight, the, the UV light in the sun, and particularly if we burn our skin or, or get sun damage to our skin, increases the chance of us developing a skin cancer. [00:02:44] So you can think of lots of other examples such as cigarette smoking and lung cancer, and so we know that there are a number of different risk factors that increase the chance of our cells developing damage and becoming abnormal cells and growing uncontrollably. So when we talk about prevention, we might think, well, could we reduce some of those risk factors and therefore reduce the chance of those cells getting damaged and becoming cancer cells? [00:03:10] So I gave the example of skin cancer. We might put sun cream on if we're going out in the midday sun, for example. That reduces the damage of the UV light onto our skin cells. Or we might help people to go into a smoking prevention programme or, you know, other risk factors, such as we know that being very overweight can increase the chance of cancer. [00:03:31] We might help people get into more exercise regimes or improve people's diets. So those are the sorts of things that we might do sort of for environmental risk factors. But we also know, particularly in this context, that sometimes people are born, they carry genetic changes within their cells that they're born ...
    Show More Show Less
    36 mins
  • How can genomics help us understand rare conditions?

    How can genomics help us understand rare conditions?
    Jun 10 2026
    In this explainer episode, we’ve asked Jamie Ellingford, Lead Genomic Data Scientist for Rare Disease, to explain how genomics is helping us better understand rare conditions. You can also find a series of short videos explaining some of the common terms you might encounter about genomics on our YouTube channel. If you’ve got any questions, or have any other topics you’d like us to explain, let us know on podcast@genomicsengland.co.uk. You can download the transcript or read it below. [00:00:00] Florence: How can genomics help us better understand rare conditions? My name is Florence Cornish, and today I am joined by our Lead Genomic Data Scientist for Rare Disease, Jamie Ellingford, and he is going to be sharing lots more insights about the topic with us. So, I guess before we begin, Jamie, it might be useful if you could explain what we actually mean by the term 'rare condition'? [00:00:25] Jamie: Sure. Hi, Florence. So, a rare condition we define as something that impacts one in less than two thousand people, and so that's something that occurs really infrequently in the population. But we know that collectively there's lots of different rare diseases. And so, the estimates are that it's about one in seventeen people in the population that are impacted by some sort of rare disease, of which we think there's over seven thousand. But research that uses data that we have here at Genomics England as well as other sources is starting to uncover more and more of these individual rare disorders. So collectively, as I just said, one in seventeen individuals, we think, is impacted by a rare disease, and that equates to almost three and a half million people here in the UK. [00:01:15] Most of these rare conditions, we think, have a genetic basis, and perhaps we'll explain a little bit more about what that means. [00:01:22] Florence: Yeah, no, it would be great to talk a little bit more about that actually. So as you said, most rare conditions we think have a genetic cause, but I think it might be helpful if you could explain what we mean when we say that something 'has a genetic cause'. [00:01:35] Jamie: Of course. So maybe we go back to kind of the basics and kind of how a person is first formed. So, at that point of fertilisation, where the sex cells from mum and dad join, we inherit one copy of our genome from mum and one copy from dad, and it's the order and the composition of these letters in our genome which makes it unique to us. Most of that genome is absolutely identical to anyone else in the human population. And a small fraction of it is unique to us and is a combination of things that we've inherited from our mothers and our fathers. And when we think about genetic causes, largely, we look at those differences. And so, what is it that's different in individuals compared to the wider population that could be driving these rare conditions? [00:02:23] Florence: So could you maybe explain a little bit more about how people's genetic material, how people's genomes differ from one another? [00:02:30] Jamie: So there's lots of different ways that we can observe these genetic differences. So some of them impact individual letters, and we, we may swap a single letter for another. [00:02:41] We can also remove small sections, so it may be that a run of three or four of these letters is deleted from someone's genome. But on the opposite end of the scale, we can also see huge changes in how that genetic material looks. So perhaps a good way to think about this is as a story. And so if our, if our genome is like any kind of good fiction story that you would read, then we can have spelling mistakes that impact single words, [00:03:09] that impact whole paragraphs, or some which impact whole chapters. Lots of these different types of genetic causes can give rise to genetic conditions. And so even the smallest changes, the smallest spelling mistakes in words, can still give rise to rare genetic conditions. [00:03:26] Florence: We actually have a previous podcast episode that explores that topic in a lot more detail. So if listeners want to check that out, it's called "Are genetic conditions always inherited from parents?" So obviously, Jamie, we spoke quite a lot about DNA and genetic changes there, and this episode is all about how genomics specifically can help us better understand rare conditions. [00:03:47] Um, but what actually is genomics as a field of study? [00:03:53] Jamie: So simply put, genomics is the study of the whole genome, or at least as complete a picture of the genome as we can possibly represent. And so in the case of rare disorders, we use genomics to try and understand what the genome looks like from an affected child. [00:04:12] And, um, in some cases, we're also able to look at the whole genomes of their relatives, so ...
    Show More Show Less
    10 mins
  • How is research changing the role of midwives in maternity care?

    How is research changing the role of midwives in maternity care?
    May 27 2026
    When people think of midwives, they often think about pregnancy and birth, but the reality of modern midwifery is far broader. In this episode of Behind the Genes, our guests explore the many different roles midwives play across healthcare, from clinical care and safety improvement to research and genomics. The conversation looks at how midwives are helping shape the future of maternity care through research, supporting families to make informed decisions about genomic testing, and contributing to studies like the Generation Study. Our host, Sharon Jones is joined by: Katie Handley - maternal and child health clinical lead for the Generation Study, Fiona Smith - research midwife for the Generation Study at Rosie Hospital in Cambridgeshire Jess Fletcher - safety and quality midwife at the Rosie Hospital and a participant on the Generation Study You can find out more about the Generation Study via the study’s official website. “ The more brave we are as midwives, and the more that we're willing to be curious about what we can do to improve our care, the better we're going to be at our profession. All midwives want to do is to provide safe, effective care that is what is in the best interest of that woman. We are advocates for women and for their families.” You can download the transcript or read it below. [00:00:00] Sharon Jones: Welcome to Behind the Genes. How is genomics changing midwifery, and what role are midwives playing in shaping the future of genomic healthcare? Also, do midwives just deliver babies, or is their role much broader than many people realise? [00:00:16] My name is Sharon Jones, and in this podcast we cover everything from cutting-edge research to real life stories in genomic healthcare. [00:00:23] Joining me today are Katie Handley, Fiona Smith, and Jess Fletcher. Katie is Maternal and Child Health Clinical Lead for the Generation Study, Fiona is a research midwife for the Generation Study at Rosie Hospital in Cambridgeshire, and Jess is a safety and quality midwife at the Rosie Hospital, and a participant on the Generation Study. [00:00:42] Together, we'll be exploring how midwifery's evolving, where research fits into clinical practice, and what genomics mean for maternity care now and in the future. We kicked off this one by asking Katie what roles midwives play day to day. [00:00:56] Kate Handley: I think when people think of midwives, they think of helping a lady to have a baby. [00:01:01] We're there for the birth, we're there to catch the baby, but it is so, so much more than that. We're there from the moment a woman becomes pregnant or even before that. We can help with prenatal, uh, preconception care. We're there all the way through the pregnancy, for the birth, and then afterwards as well, we'll look after the lady, her family, until, until we hand the baby and, and her over to the health visitor or to whoever's next in her care pathway. [00:01:25] But that's just looking at clinical midwives for the... that are involved directly in that particular pregnancy. There's midwives doing all sorts of other roles. I think I'm a really good example of that. So I am a clinic- I was a clinical midwife. I am a registered midwife, but now I work as a clinical lead, so I'm using my midwifery background and my midwifery skills in a research environment, but to help people who don't know as much about midwifery to implement a research study, and how we can make a research study real in a clinical environment. [00:01:59] So that's one example, but there are so many other things, and we have midwives doing screening roles and lots and lots of midwives working in research as well. [00:02:08] Sharon Jones: That's interesting. I've got a couple of friends who are midwives, and I would never have known, like, the extent and scope of their role. [00:02:14] Kate Handley: Yeah, I think people might be surprised to hear that you can be a midwife but never actually even see a pregnant person. So we have midwives that are academics, for example, or midwives that are lecturing at universities, midwives that are working behind the scenes in risk and governance and looking after the safety aspect. [00:02:30] Sharon Jones: That's amazing. I would never have known that. So Fiona, how has your role as a midwife changed over the years? Because you've gone through quite a bit of a transition, haven't you? [00:02:39] Fiona Smith: I have. Before I even became a midwife, I was, I was nursing. That nursing pathway was not academic, as we now have to undertake academic training to become a midwife. [00:02:50] So we... the training was very different. It was very hospital-based, and this is what you do, this is what we do. You would do some observation. You'd have a go. You'd get signed off. That really was my nursing background, and then when I started to explore midwifery, and it was much more academic, and that I was going to do the university pathway, I doubted that that ...
    Show More Show Less
    34 mins
adbl_web_anon_alc_button_suppression_t1
No reviews yet
In the spirit of reconciliation, Audible acknowledges the Traditional Custodians of country throughout Australia and their connections to land, sea and community. We pay our respect to their elders past and present and extend that respect to all Aboriginal and Torres Strait Islander peoples today.