In short
Prostate Awareness Month Part 1 focuses on prostate cancer screening and how to interpret PSA, including controversies, false positives, and next-step testing to avoid unnecessary biopsies.
Guests
Dr. Wayne Brisbane, a urologic oncologist and surgeon-scientist specializing in prostate cancer across the disease spectrum (early detection, precision diagnosis, focal therapies, and research to identify clinically significant cancer). Jordan Runta is the co-host; Dr. Jesse Mills is the host.
Key claims
PSA is a “thermometer” (not cancer-specific) and elevated PSA often reflects prostatitis, benign enlargement, aging, or medication effects. Finasteride/dutasteride suppress PSA, making PSA a “broken thermometer” unless PSA is adjusted (double/quadruple after years). Testosterone/TRT doesn’t cause prostate cancer; prostate cancer risk is driven by genetic drivers, while testosterone is compared to a “gas tank” that’s already saturated in the prostate.
Notable examples
A hypothetical 55-year-old with PSA rising from 1.8 to 4.1 after TRT; advice to repeat PSA and use PSA velocity (e.g., repeat if rapid rise). Screening pathway: PSA then prostate MRI (preferred next step) rather than jumping straight to biopsy; DRE has limited screening utility. Alternatives for MRI-ineligible patients include urinary biomarkers and micro-ultrasound (29 MHz), with trials showing comparable cancer diagnosis to MRI.
Written by AI. May contain mistakes. Listen to the episode to check what was said.
Chapters
Tap a time to open that second in VOIntroduction to Prostate Cancer Series
0:45 to 1:17
Overview of the three-part series on prostate cancer with Dr. Brisbane.
“Drink plenty of fluids, urinate often, use contraception, and talk to your doctor about ways to reduce the risk of exposing others to radiation during and after treatment.”
Introduction to Prostate Cancer Series
1:20 to 3:14
Overview of the three-part series on prostate cancer with Dr. Brisbane.
“Let's talk about the mailroom Welcome to the mailroom Welcome back to the mailroom.”
Importance of Screening for Prostate Cancer
3:14 to 5:02
Discussion on the significance and controversies surrounding prostate cancer screening.
“is for guys to have good information as they go in.”
Understanding PSA and Its Role
5:02 to 6:28
Explanation of PSA as a biomarker and its implications for prostate cancer.
“And because it's not specific for cancer, the number of men that will have an elevated PSA that don't have prostate cancer is actually far greater.”
Patient Journey and Prostate Health
6:28 to 14:00
Exploration of a patient's journey through screening, diagnosis, and treatment options.
“It's more of a dig on the fact that we're incredibly passionate about what we do to help our guys that we're taking care of.”
Understanding PSA and Prostate Cancer Risk
14:00 to 21:26
Learn about the PSA test's role in assessing prostate cancer risk and its implications.
“pretty much who's at risk for prostate cancer based on that one blood test.”
Testosterone Therapy and PSA Levels
21:26 to 26:54
Explore the relationship between testosterone therapy and PSA levels in men.
“This is not a personal story, by the way.”
Advanced Screening Techniques for Prostate Health
26:54 to 28:00
Discover modern screening methods for prostate health beyond traditional biopsies.
“Well, I mean, and that's actually really interesting because the ticket for one of those 75 % of guys that had elevated PSA didn't have prostate cancer was a pretty invasive test.”
Prostate Cancer Screening: Understanding MRIs and Digital Rectal Exams
28:00 to 31:11
Learn about the role of MRIs and digital rectal exams in prostate cancer screening and diagnosis.
“and said, I'm going to take out your appendix.”
Biomarkers and Micro-Ultrasound in Prostate Diagnosis
31:11 to 36:38
Explore the use of urinary biomarkers and micro-ultrasound technology in diagnosing prostate cancer.
“Where do you line up on some of the urinary biomarkers, exosomes, some of these tests for screening?”
Show all 11 chapters
Lifestyle Factors and Prostate Cancer Prevention
36:38 to 42:05
Discuss the impact of diet, exercise, and lifestyle on prostate cancer risk and prevention.
“I still think MRI has some benefits as like a population test, but we're hoping that with some advances in AI that micro-ultrasound will prove to be a very low-cost, point-of-care cancer screening solution.”
Transcript
Automatic transcript. May contain errors.0:00This is an iHeart Podcast. Guaranteed Human.
0:31positive metastatic castration-resistant prostate cancer, or PSMA-positive MCRPC, who have already been treated with hormone therapy and are considered appropriate to delay chemotherapy. Blue Victo involves contact with radioactivity, which may increase the risk for cancer and cause fetal harm. Drink plenty of fluids, urinate often, use contraception, and talk to your doctor about ways to reduce the risk of exposing others to radiation during and after treatment. Blue Victo can cause low levels of blood cell counts, kidney problems, and infertility. Tell your doctor if you have weakness, pale skin, shortness of breath, bleeding or bruising more easily, and infection or changes in urination.
1:05Side effects include decreased blood cell counts, tiredness, dry mouth, nausea, appetite loss, joint or back pain, and constipation. Ask your doctor about Fluvicto because every day without cancer progression is a victory. Visit Fluvicto.com to learn more.
1:31Let's talk about the mailroom Welcome to the mailroom Welcome back to the mailroom. Dr. Jesse Mills here, as always, joined by Jordan Runta. It's been a beautiful, sunny Santa Monica winter so far. And, Jordan, you're probably suffering through the perils of winter in Brooklyn, but you holding up okay? Got several sweaters on my side right now, but I am surviving. Ah, yeah, well, speaking of sweaters, I'm about ready to change into my carton again and house slippers and do this podcast here with Dr. Brisbane. You know, when I thought about Mr. Rogers and if he did podcasting, do you think he would take off his tie for the podcast or do you think he would keep it on even though it was a radio bit?
2:16My guess is he would probably still keep on his tie even through that, which makes me feel incredibly underdressed here. You know, I have a theory about that. When the Beatles were just starting out, their manager, when they were on radio, would make them wear suits, even though they're on radio because he just wanted them to get into that mode so i'm gonna say yeah yeah no i get that's right that makes sense yes yes dress for the job you want which is exactly one of the greatest bands of all time awesome well we have something really special not only because of the guest i mean you know i get super pumped about all our guests and dr brisbane i'll introduce in a second but also because i want to do something a little different than we've done before which is have a story arc this will be a three-part series so we'll start today talking about the first third of this.
2:59And the overall theme is going to be prostate cancer, because it's a huge theme. Dr. Brisbane has dedicated pretty much his entire career to prostate cancer. He's a urologist, as am I. But it's more than that is a little bit of just talking about the role that prostate health plays in men's health writ large, and how important it is for guys to have good information as they go in. And so that's, that's what we're going to do. The first part of this story is going to be screening for prostate cancer because there's so much controversy out there. For good reason. It's a complicated subject, and we're going to have Dr.
3:33Brisbane unpack that for us. And then the next episode, we're going to talk about diagnosis because the world of diagnosis of prostate cancer is evolving as we speak. and he was recently on the news on TV talking about some of these new diagnostic modalities that we'll have him talk about because he's so involved in the world of things like micro ultrasound and super excited to pick his brain on that. And then lastly, we got to talk about treatment for the men that are diagnosed with prostate cancer. So it'll be bam, bam, bam. And we're going to do this as a story. So we're going to have a guy that's going to basically walk through Wayne's office and go through all three parts of this.
4:09And why is this important is that But prostate cancer, even in 2026, is still a, it's a curable disease that if it's caught early, it's one of the most curable diseases. And yet, even in 2026, more men die from prostate cancer than just about any cancer out there, solid organ tumors at least. So there's still a lot of men that are not getting the access to care or don't have the right information to do that. And a lot of this started with a blood test. one of the early cancer biomarkers we use called PSA or prostate specific antigen. And it's a very controversial test because it actually is not a prostate cancer specific antigen.
4:52And when we talk about biomarkers, they're just that there's some kind of biological test, whether it's from urine, blood, semen, tissue that indicate some sort of actionable item or a risk factor for a disease. And because it's not specific for cancer, the number of men that will have an elevated PSA that don't have prostate cancer is actually far greater. Wayne can correct me on that, but basically it's about a three to one negative cancer risk for a guy with a high PSA. In other words, they're four to one. So if you have a hundred guys walk into your office and their PSA is high, only about 25 of those guys are going to actually have prostate cancer.
5:28So that's where a lot of the throwing out the baby with the bathwater happened in our prostate cancer screening journey. And so that's what we're going to have to figure out is how do we accurately diagnose this condition and how do we go from there in terms of treatment? Because the treatment has also gotten so much more refined, but there's still a lot of risks associated with treatment. And there's still a lot of guys that are getting treatment that may not need it, that actually can do something called active surveillance, which we're also going to talk about. So that's why we have Dr. Wayne Brisbane here.
5:58He is a urologic oncologist and a surgeon scientist, which is actually a big title because the amount of work and training it takes to become a urologic surgeon, it's six to eight years of residency, post-residency fellowship. And all the time, if you're still trying to do science, either basic science, clinical outcomes, you'd only have so many hours in a day. And as we always say, you have protected research time at any major academic center, and it's usually called nights and weekends. So that's protected research time. And that's no dig on UCLA. It's more of a dig on the fact that we're incredibly passionate about what we do to help our guys that we're taking care of.
6:36So as a surgeon scientist, his clinical practice focuses on prostate cancer across the entire disease spectrum. That means early detection and precision diagnosis to advance surgical and focal therapies. That's the other really exciting thing we're going to talk about is focal therapy. He's deeply involved in research aimed at improving how we identify a clinically significant prostate cancer. Again, huge term, clinically significant prostate cancer. Let's remember that. And then how do we tailor treatment to the individual patient? So of those 25 guys, not all of them are going to get the same treatment.
7:08So again, prostate cancer is not like appendicitis. You have a ruptured appendix, you'd go to the OR, you take it out. This is so much more nuanced. And it's so important as patients and clinicians to be super involved, prepared and informed. And Wayne also looks the part of a men's health specialist. I know this his radio, but it looks like he can squat and farmer carry himself around Equinox. And that makes me even more excited to be his partner, his friend and clinic mate. Wayne, welcome, by the way. Thank you so much. We've been looking forward to this for months. I'm so excited. Yeah. So Wayne, you're kind of the guy when it comes to talking about all of these things.
7:45And so it was an easy call to make. And what I want to do is I want to look at a patient journey. So I'm going to be a 55 year old guy. And I'm referred to your office for an elevated PSA. And then basically, you're going to work me up, you're going to tell me what all that means. And as we go through this, we're going to spoiler alert, we're going to find prostate cancer, otherwise, it'd be a pretty short episode. So so that's one of the things, and you're going to go into this and then we're going to really go through screening diagnosis, treatment. So Dr. brisbane let's talk about it welcome to the mail room i'm looking forward to it thanks so much yeah yeah so you know one of the things i guess even before i get into screening is what can a guy do i mean a big part of our our show that jordan and i do is we try to empower men to do something outside of the doctor's office so are there things men should do other than screening for prostate cancer that are preventative how important is family history in the development of prostate cancer.
8:46We'll start with that. Yeah. So, you know, when I was thinking about this, you and I had talked before the podcast a little bit about kind of how this might go. And so I've been kind of racking my brain for a good analogy that we can use for guys who may not be, you know, scientists, but obviously your clientele here is very intelligent. So the analogy I'm going to come back to, which will break down at some point because I'm comparing a mechanical system to a biologic system. and eventually that will outrun its usefulness. But I'm going to keep coming back to an analogy of a car, and not a fancy car, just like a simple, mechanical, the way we use, you know, it can be a stick shift.
9:2683 Yugo, maybe? 85 Yugo? Yeah, yeah, that's it. My first car was a Mazda 323, like a 1980. That's not bad. I told Jordan the other day, I had a 62 MGA. It was probably still the best car I've ever had, And I, you know, a lot of people peak in high school. I automatically peaked in high school. So talk to us about the car. But I do think that just like a car, you know, with the development of prostate cancer, along with many cancers, has to do with uninhibited growth. And so the analogy we'll use is just saying, you know, either the gas pedal gets stuck down or the brake pedal stops functioning.
10:08And those are those are two genetic things that you can be linking to. either the genes that are supposed to turn off growth get broken, or the genes that are supposed to accelerate growth get stuck on. And those things basically is just your normal cells that get kind of growing out of control. That's your basic definition of cancer. And prostate cancer just happens to be one of the organs that's at a particularly high risk for that. That's why we hear about it quite a bit. And so you can, to some extent, prevent that by doing maintenance on your car. And what does that look like? Well, that looks like a whole foods kind of diet.
10:43There's a lot of debate about what that looks like perfectly. But just in generally, I think we can all agree that a good diet is important. Exercise, the amount of exercise is probably important. Intensity is important. And sleep. And so those are the things that you really can do to maintain your cells or your car. And there has been a lot of evidence that has accumulated that that's good for just about everything, prostate cancer included. Eat, Move, Sleep. Sounds like a book I wrote a couple of years ago. And that's true. You know, we had a couple of episodes ago, maybe it was just last episode, we had Josh Offman, who's the CMO of GRAIL.
11:20You know, it was one of these early multigenomic cancer screening tests. And so that was actually really helpful to remind listeners of that cancer metaphor that works pretty well. It's, you know, accelerated growth and decelerated slowing down of that cell division. But one of the tricky things about prostate cancer is it's not a particularly fast-growing cancer. So it smolders for a while. And so that's where I think the screening thing is going to get a little bit dodgy. But also, I guess it gives us a lot of warnings. So at mile 20 ,000, if you miss your checkup, can you get to 40 ,000 okay?
11:57And so you talk to me about that and the cell division of prostate now. It's a little bit tougher sometimes. to diagnose because it's not so, you know, there's no early symptoms of prostate cancer, if that's correct. So talk about that. I mean, if a guy says, hey, look, I feel great. And that's probably going to do. I mean, I'm in best shape of my life. And then this doctor told me I have cancer. What's up with that? I'm not losing weight. I'm getting night sweats. Yeah. Yeah, that's absolutely true. So a lot of the idea behind screening is you catch these tumors while they're small, they're feeble, and it allows you to treat them and cure them before you get to the point of symptoms.
12:35And so it's this idea of preventative medicine. We don't have good screening tests for all cancers, but we do for some. So colon for the, you know, the colonoscopies, prostate is one as well, that thankfully PSA is a good screening test. So let's talk a little bit about PSA. So PSA is, I think of it like a thermometer for the prostate, okay? It's a protein that Mother Nature wants to be there. And Jesse, you can talk about this probably better than I can, but it's a protein that helps with sperm's function, and it helps dissolve some of the proteins around the sperm that help them be released for swimming.
13:18It's a normal protein. they come in. Actually, we think of it as just one protein, but it's actually a family of proteins. And we can measure it in the blood very easily. And in the 1980s, this was really worked out by some very brilliant individuals. And that led to, initially, we were saying, oh my goodness, there's this, when we test this temperature, we can tend to find prostate cancer. What we hadn't done at that point is risk stratify the prostate cancers. Prostate cancer comes in five flavors, I'm going to say. And we can get into that in a second. But we were just saying, you know, whatever flavor it is, it's of cancer.
13:52And that was a mistake. But PSA still is a very, very good risk stratification tool, meaning I can take guys in their 40s, we can get a PSA, and I can tell you pretty much who's at risk for prostate cancer based on that one blood test. And this is some Swedish data that was very useful, showing that basically your early PSA can be a good risk predictor of how you help your cancer development later in life. And as a result, the National Cancer Care Network, this NCCN guidelines, actually suggests men start getting PSAs as early as 45. And that's reasonably early. And guys with a strong family history or at particular risk for prostate cancer, and that can be very simple things, just like men of African ancestry, they can get they recommend the PSA as early as 40 and if your PSA is less than one then that's really really protective you can go for several years before you need to check your PSA again but if it's greater than one you probably need to be checking at least once a year with your primary care doctor because that does put you at risk for prostate cancer development doesn't mean it's a fait accompli but it's it's something that's very important so you really want to think of PSA as a as a thermometer.
15:06Yeah. So brought up a couple of things there. You're right. I like how you said that PSA is a naturally occurring enzyme. It's in a family called serine proteases. And as a fertility specialist, that makes a big difference to us because you have to have PSA because that's what liquefies semen. So in other words, when a guy has an ejaculation, as we most of us probably know comes it up more like pudding. And in order for that sperm to get released, it sticks to the back of whatever you're trying to procreate with. And it in this in the mostly traditional reproductive ways, that would be the cervix and the sperm get released as that PSA liquefies over time.
15:47And so high levels of PSA are not diagnostic of prostate cancer, but they are at least meaning that you have a lot of cells that are starting to make this antigen or this enzyme that could put you at risk for prostate cancer. So it's a normally occurring enzyme and it's a very conserved enzyme as well. In other words, there are other organs that make PSA, which is why one of the things maybe we'll get to when we talk about definitive therapy is that I get this all the time. I say, why is my PSA, it always says less than dot, dot, dot, dot, dot. And it's because even the stomach secretes PSA because it's such a conserved enzyme.
16:25So there's, so you'll, your PSA will never be zero, but most of the time your urologists are like, great, you know, less than 0.01, that's pretty much zero. Your prostate is gone. So, so that's really, that's really an important diagnostic tool. And also I think one other thing I want you to talk about is, especially because right now in the world of longevity, men's health, direct to consumer ads, and the access of drugs that normally were prescribed in the clinic, there's one very common medicine that guys start taking when they're 18, 20, 30 for thinning hair. And tell me what that, now I'm making, I'm pimping you for your oral boards.
17:07Tell me what medicine I'm thinking about. And the reason this just came up is because I had dinner with somebody when we were at the CES in Vegas and she was telling a story about her brother who had a misdiagnosis of prostate cancer because he'd been taking this drug and his PSA was artificially low. So tell me what I'm thinking. It's the best way to play this game, Dr. Brissett. Sure, no, no, no. So you think about finasteride is the drug. There's also a sister drug called dutasteride. I wanna take one step back and then I'm gonna step into and answer that question quickly. So one step back is PSA is a protein that's very, We have these serine kinases all over the body, but the prostate really for this particular form of it is very important at the prostate.
17:56And so we can use that to diagnose prostate cancer. But as you have alluded to, there's other forms or there's other ways that the PSA can be elevated. And there's traditionally three. So prostate cancer, prostatitis, and then kind of prostate size, I'm going to say, just so, you know, as the as the prostate gets bigger, there's more cells, more PSA goes up. and then also as men age, you know, the PSA goes up. There's probably this PSA leak phenomenon where your PSA gets a little more leaky. It's not necessarily a problem, but it's very common as men age that their PSA goes up naturally, okay, so nothing to worry about.
18:31But in general, when we see the PSA goes up, you can, again, that's the idea of a thermometer. If you're exercising, your temperature would go up. Doesn't mean you're sick, okay, or if, you know, when I was a kid, at least we, you know, put it next to a light bulb and get it heated up before so I didn't have to go to school. So there's other things. I said you never, but it's a cute story. But there's reasons. You can get the temperature to go up even when you're not sick. But in combination with other things, like let's say you have a cough or a headache or something like that, then the temperature takes on this.
19:02You say, okay, this fits a picture of you have a sickness. Now, PSA is the same way. It goes up for lots of different reasons. But this particular drug, finasteride and dutasteride actually suppresses PSA production at the level of the prostate. It's a drug that blocks the transition from testosterone to dihydrotestosterone, and that's important at the level of the prostate because it allows the prostate to shrink a bit, but it also is important at the hair follicles, and so that can prevent male pattern balding. So very good drugs, very few side effects, especially at low doses. Initially, this was noticed there was two huge studies, one with finasteride, another with its sister drug, dutasteride.
19:40And the initial thought was that we were going to prevent prostate cancer by giving this drug because it was kind of starving the prostate cancer out. And it did help with preventing low-risk prostate cancer. But we noticed that guys with higher-risk prostate cancers were starting to pop up in the population who was taking the drug. Now, there's a lot of ink spilt on whether it was the drug or whether it was just easier to find. But the take home for guys today in 2026, if you're on finasteride or dutasteride, your PSA won't respond nearly as quickly to a cancer. And so if you just, it's not super hard, but you have to at least tell your urologist or your internal med doc, your PCP, that you're on that medication because you at least have to double the PSA value.
20:29And if you've been on it for a few years, you might have to quadruple the PSA value. And this has actually burned me in my practice. It's something you just have to, this is all I do every day. And I have been tricked by dutasteride and finasteride because they suppress the PSA just so much. So really, the PSA becomes a very, it's a broken thermometer if you're on those meds. And so they're not bad meds. I think they're great meds. But just make sure that you don't rely on PSA for its diagnostic properties if you're on those meds. That's great.
21:27All right, so let's do this. So I'm a 55-year-old guy. I actually am a 55-year-old guy. I'm incredibly healthy. You see this guy at the gym frequently. You're impressed with how robust he is. This is not a personal story, by the way. Very impressed. Yeah, it's because I don't want to get too personal because it's not, you know, it's not me, I promise. But his physician sends him to you because his PSA went up. It was 1.8 last year. All good, right? And it went up to 4.1 on this year's annual lab screening. So appropriate referral to Dr. Brisbane to see about this PSA bump. I'm going to add value to our listeners and also add educational purpose here.
22:01Let's just say also that he started on testosterone therapy last year. He had to keep up with you at the gym. He saw what you were squatting. He was like, I got to look like Brisbane. So I need TRT. My testosterone was low. It was actually 184 nanograms per deciliter, which is about 200 points lower than kind of minimum thresholds for screening, at least by European guidelines, maybe 120 or so by American guidelines. But the bottom line is the guy had low testosterone, PCP, appropriately put him on TRT, and his PSA now is 4.1. First of all, let me be the urologist, because I do a lot of testosterone therapy, as you know, in my clinic.
22:38And say I referred him to you, did I just give this guy prostate cancer by starting him on testosterone and having that PSA go from 1.8 to 4.1? Let's unpack what's happening. Talk to me about androgen receptors, saturation models, and then, you know, walk us through what this case is starting out to for you. What's on your mind? Sure. So to start off kind of saying, did you give this guy prostate cancer? I'm going to come back to that kind of mental model of that car. And the answer is I kind of squarely say no. You know, we don't think that testosterone causes prostate cancer. It would be like I'm going to use the gas tank as the analogy.
23:15So, you know, the gas tank, you can only fill it with so much gas and then it's full. It's ready to go. If you fill it with more, it just spills over the side. Gas is testosterone. Exactly. Gas is testosterone. Thanks for clarifying that. And we think that the prostate's kind of similar. You know, the cancer is from one of those genetic drivers, either something you were born with or something that developed from a spontaneous mutation. That's the gas pedal down, brake pedal's broken, and that's causing the growth. But the gas is the testosterone. And you can't give, the prostate's super sensitive to testosterone.
23:51So even if it's at a testosterone level of like 150 to 200, all the receptors in the prostate are saturated the gas tank is full okay so even at low levels those the gas tank's full for the prostate and so one of the things that's very useful when there's broken cars everywhere okay so we're talking about a different guy now this is guys who have had metastatic prostate cancer and their care there you know there's cancer cells everywhere so you think about all these little broken cars we can pull the gas tank on all those cars by giving a medication that pulls the testosterone out of the body.
24:24And so that can be an extremely effective cancer tool. But in the setting of localized prostate cancer, we think that it's probably the genetic driver and the gas tank is just the testosterone. So that helps you understand one of the common misconceptions. I'd also think that the primary care doctor did the right thing, right? So your PSA, NCCN guidelines would say, this guy, he's got a PSA between one and three, He should do annual screening. And so he is at 1.8. They checked it again a year later. It had had considerable acceleration. And so that would trigger a referral. Yeah, so you're kind of touching on what sometimes we refer to as a PSA velocity.
25:04And so even if I made this a little bit more nuanced and say his PSA was 0.9, and then it went to 2.9, he's still under 3. But is that velocity concerning you year over year? Is that still something that triggers a little more advanced screening just based on PSA alone? Totally. So the speed of ascent is very important. We call that PSA velocity. And the other thing, you know, that we'd probably do is just something super common sense. We'd probably check it again a month later. Just to say, you know, sometimes it's common. PSA, like we said, it's like a thermometer. You can get the thermometer to go up for certain reasons.
25:37So we say, hey, you know, just avoid sex. No, make sure you didn't have the flu at that same time. You know, it probably doesn't matter, but avoid riding your bike for three days and just kind of take it easy and we'll check again. Just make sure there was no false positives. Great. So bullet points here for people out there taking notes are that if your PSA has been on a good trend for a while, has not gone up that 0.75 or 1 a year and it spikes, repeat it. Don't have your doc just send you right to the biopsy suite to say, hey, can we take a look at this in a month or so and make sure it's real?
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26:14and two if your doctor reassures you that your PSA is still under four but it jumped greater than that 0.75 or one a year maybe just weekly or strongly advocate for yourself that you heard this podcast with a prostate cancer expert that said maybe you need a little bit more investigation yeah and and I would say that you know the NCCN guidelines now use a PSA of three even to initiate initiated an evaluation. So speed of rise, or if you, you crest three, I would say for my, for my particular practice that, that at least we should take a look at it. Doesn't mean we're going to a biopsy, but we should, we should take a look.
26:52So I'm sure that's what our next step will be. Yeah. Well, I mean, and that's actually really interesting because the ticket for one of those 75 % of guys that had elevated PSA didn't have prostate cancer was a pretty invasive test. Yeah. So before you are a guy that's in your office right now, before we even get to the diagnostics, I mean, if this were 2004, you would say, hey, I'm going to schedule a fever prostate biopsy, transruptor ultrasound. Yeah. Before we get to diagnostics, what other screening out there are there? And I guess I would ask you, is MRI a screening tool or is that a diagnostic tool or is it a little bit of both?
27:30is micro ultrasound that you've been pioneering, screening, diagnostic, both. Are there any other biomarkers that are better than PSA that maybe we can get this guy to not necessarily run off to the biopsy suite? Of course. Absolutely. So the answer is yes. And just like, you know, using our example, if you got a fever, let's say you're 102 and you went to the emergency room and you felt pretty good, maybe you were on a jog, you'd be pretty suspicious of a surgeon who came to you and said, I'm going to take out your appendix. And you'd be like, I feel okay. Like maybe we should do a couple more tests.
28:06And that's the same thing in prostate cancer, right? So the PSA being elevated straight to the biopsy, I think is a bit 20 years ago. And right now, very clearly, the next best step on almost every single guideline, and I'm only saying almost because I'm leaving a little wiggle room, every guideline that I know of is to go to a prostate MRI. MRI. And prostate MRI is basically your best delineating test to say, is this something to worry about or something not to worry about? And that's in NCCN, AUA, European guidelines, Canadian, UK. But the MRI is an extremely powerful way of looking for prostate size.
28:47So we can say, hey, is it just a big prostate? Looking for any spots that need to be biopsied. So maybe there is a spot. Maybe this is one of those guys who does have a spot and it's concerning for prostate cancer. And then also you can use that MRI data now, and we published one, there's others, but you can put it into a risk calculator. So you put age and your PSA and your prior digital rectal history, if you have it, and your MRI parameters, and it will spit out with multiple variables, not just the MRI, what your risk of prostate cancer is. And so that is a way to turn the MRI, not only from an imaging tool, but also into one of the better biomarkers.
29:23Yeah, I'm glad you brought up. I can't believe we almost left screening without talking about the digital rectal exam or the physical exam, the finger wave, whatever other things people have. You know, that actually is, as you know, it's a big barrier. There are a lot of men and I don't want to get in. It doesn't really matter whether we get into it. There's a lot of scare, fear, anxiety about getting the rectal exam. Where does that line up in 2026? Is it still necessary? is it still part of our guidelines? Talk to me through that. If a guy is like, there's no way you're ever going to do that exam on me, it's just too uncomfortable to whatever.
29:58Yeah. Talk to me about that. Yeah. So the digital rectal exam as a screening test doesn't have a lot of utility. It's very good if it's positive. If you do a digital rectal exam and there's a, there's a large concerning lump, that's an important finding, especially if the PSA is low. Let's say there's a guy on finasteride and you're saying the PSA doesn't seem to work as well. I'll do a digital rectal exam to figure that out, to kind of parse those pieces. Or it's very still important for staging. And staging, we'll get to later on another day. But staging is where is the cancer relative to the wall of the prostate?
30:34And your finger still is a really good way to kind of figure that out because it's sensitive. But our fingers, especially on mass, meaning when I try and I'm going to try and take care of a population of men. and I have to regulate the digital rectal exams for multiple physicians, it really breaks down as a test. And so the PSA to MRI, no digital rectal exam, is very acceptable, also guideline acceptable. And so if guys don't want a digital rectal exam, please don't let that be the barrier to your cancer screening because you don't need one. You can get one in certain situations if the clinician feels like it's helpful, but it doesn't need to be just a thing that you do.
31:10Yeah. Where do you line up on some of the urinary biomarkers, exosomes, some of these tests for screening? Do they help? Because MRIs are not perfect. Well, they're not$55, right? I mean, MRIs are, you're taking a blood test, which is$30, and then you're going to tack on an$1 ,800 plus exam with MRIs or any stutter step from health services or a public health expenditure that could save a few MRIs along the way. Absolutely. So if you're looking at this from a diagnostic accuracy standpoint, then MRI is still the best. It has the best specificity, meaning it can help you find cancers, has the best sensitivity, meaning you can exclude cancers, and it gives you anatomic information, meaning that if there's a spot, you can help design where you're going to put the needles a lot more accurately.
32:03But like you mentioned, it's expensive. It's not comfortable. Some guys have hip implants. Some guys are claustrophobic. There's contrast. It takes time. It's not comfortable. There's urinary tests that we can literally mail to your house, and you can pee in a cup and send it back. And those tests are very good for their negative predictive value, meaning if they come back negative, there's a very good chance that you do not have prostate cancer. And so we absolutely can use those if you're interested in as a population, trying to reduce the number of MRIs. And we can also use them in the setting of equivocal MRIs.
32:38And this comes back that MRI is not perfect. Sometimes guys who, and we can get into this, have a negative MRI, but there's some concern. The PSA is too high, family history is really strong, and especially in there's certain zones in the prostate where MRI doesn't perform so well. So we have this concern. we can use a biomarker in addition to that to help us as a tiebreaker between biopsy. And so they definitely have their place and they can be cost saving and they can be an adjuvant or adjunct test MRI. And they're very, very useful. But at this time, I would say if I could only pick one or if I could only have two things, I would pick PSA and I would pick MRI.
33:15Wow. OK. And I think you really you're going to segue into our next episode because it sounds like what you're saying is there is a way to turn MRI from screening to diagnosis. In other words, there's, I don't know, maybe a grading system or something out there that some smart people have figured out. Maybe some smart people at UCLA have been working on this that I really want to pick your brain on because I think that's really exciting that you now have a non-invasive way, as you said, for the right person that doesn't have an artificial hip. They get their off the diagnostic ability to look at these, we'll get into that grading system here in a little bit.
33:56But man, that's really cool. I mean, that's amazing that you can give guys either peace of mind or actually focus in on what's going on. And then are you going to walk me through micro ultrasound and where that, because I mean, again, that's where some of your research is amazing. And as you know, we've been talking about collaborating by using that technology, even in our infertility population and seeing if we can do better sperm localization in the testicle because of how powered it is. So I'm really excited about that. Let's go back. You know, you're a 55-year-old. He comes in. PSA is, you know, 4.1.
34:28We repeat it. Let's say it's 3.9. And I get this several times. It's like, am I safe now? It looks like it's going down. And the answer is PSA does have some variability and it's not perfect as a test. So it's important to remember that a repeat within one point is pretty stable. So that's an important kind of thing to I get a lot in clinic. So I would still if you went up to there, up to, you know, 4.1 and you're at 3.9 as a second draw, you're still elevated. And we would get that guy a prostate MRI if he had claustrophobia, if he had hip implants, especially bilateral hip implants. one hip implant we can get around, but bilateral hip implants, we would probably offer him a urinary biomarker.
35:12There's some other blood-based biomarkers. There's a whole slew of them. So I don't have a strong opinion, but it's important to say, you know, if your doc has one that he likes or she likes, I'm cool with that. But not going straight to biopsy is the key. And then we can also offer micro-ultrasound. So micro-ultrasound is an extremely high-resolution ultrasound. Usually ultrasound images about five megahertz, which is a hertz is one cycle per second and megahertz would be a thousand cycles per second. So we're now usually about 5000 cycles per second of the ultrasound pulses for a normal ultrasound that you'd visualize for like for a baby in a pregnant woman.
35:48This as you go up, your resolution goes up so you can see structures that are small better. It's the same kind of thing if you're looking at, for those who look at regular microscopes versus electron microscopes, it's the same kind of idea. As you look at a wavelength using light versus a wavelength that uses an electron, you get better resolution. And so this micro ultrasound uses a 29 megahertz transducer, so it's extremely high resolution. And so we can visualize, hopefully, directly the prostate cancer. And it's a newer technology. It doesn't have the same longevity as MRI, but it's great for guys who can't do an MRI.
36:28And we published a large multi-center trial comparing MRI to micro-ultrasound and found that they equivalently diagnosed prostate cancer. That was a good win. I still think MRI has some benefits as like a population test, but we're hoping that with some advances in AI that micro-ultrasound will prove to be a very low-cost, point-of-care cancer screening solution. That's what my research is hoping to provide. Amazing.
37:15Well, Jordan, I think we've made it through screening. Any thoughts come up that you want to talk about that hit your head when we were going through how do we work up a prostate cancer prior to diagnosis? I mean, I had a few written down. I mean, this is sort of more prior to that stage and it's a real rookie question, but that's kind of my specialty. Are there any – The perennial rookie. Exactly. Are there any dietary or even environmental factors that can meaningly raise or lower risk? Yeah, we do think so. There – you know, I'll say a caveat. There was a really, really well done study called the meal study.
37:50It was led out of the UC San Diego. And it specifically was looking at guys with low risk prostate cancer and randomizing them between a high vegetable diet versus kind of whatever they were eating, you know, just whatever you like. And they followed them for three years, I want to say, and then biopsied them again to see if there was any impact on this low risk prostate cancer. And there really wasn't. we've done some studies in fish oil that showed some changes and stuff like that so if there is something it's something that you have to apply over many many years it's not uh it's not a short term fix where you can say i'm going to you know become a vegan for a month and really change my prostate cancer drink some green tea and really change my prostate cancer this is this is a lifestyle over many many years but there's lots of kind of population level data over big groups of men and women, specifically men, because it's prostate cancer, where we're looking at those who tend to get cancer and those who don't, and specifically prostate cancer, and those who will be more vegetable-based diets.
38:51You don't necessarily vegan, but more vegetable-enriched diets, and those who are exercising definitely have lower incidences. And so that probably manifests as those are the things you can do, but it's a long-term lifestyle commitment. Yeah. So Jordan, you set me up for my segment on separating fact from fiction here, which is if Dr. Brisbane had it in him to make Dr. Brisbane's all-in-one prostate cancer prevention supplement, because there's a market for it. Obviously, the supplements are, you know, multi-billion dollar market, you know, without talking about whether you can sleep at night because, you know, the amount of coffee you drink, you probably don't sleep at night anyway.
39:30But, you know, is there anything you would pack into that supplement and with any good conscience sell to your patients and to the population writ large? Yeah, the good, that's a great question. I don't think so at this point. Yeah, there's, I would, I would give them chocolate because it's delicious. There you go. Yeah, it's got polyphenols and those are really good for you. Yeah, because you brought up the omega three versus omega six story, which sounds like there's not as much of a story as maybe we hope. And it sounds like it's such a long game that it's really tough. I mean, one of the things in general with supplement studies and population studies and looking at areas where people live longer, have lower incidences of cancers, prostate cancer, sort of like the soy story, right, is that you're looking at one thing that you want to extract out of an overall lifestyle, right?
40:20So maybe it's not the soy, but maybe it's living in Okinawa and enjoying sunrise and sunset on both sides of the island and not having to get run over by a bird scooter on your way to work and just having an overall lifestyle. And by the way, we also eat more soy than the average American diet. And is that sort of what you're alluding to as well, that there is not really anything you can pack into a supplement to prevent cancer? I think that's very nicely said. Other than exercise, which is a great supplement. Yeah, which always wins. One of the joys that we have in our clinic as urologists is we basically get a chance to watch men age.
40:59If you become 90, you're going to have something urologic in your life. And so we get to see men age well, and some men age poorly. And Jesse, you can let me know if you think this is the common factor. But I have never seen a 90 year old who's walking, healthy, vibrant, who is not in the gym at least three to four times a week. Yeah, no, for sure. Or in the garden or in the Santa Monica Bay swimming, you know, and that's also good for your immune system because if you can fight off E. coli and Klebsiella and Pseudomonas from the Santa Monica Bay, you can survive anything. So, yeah, well, this is great.
41:35I think it's time to just let you go for a little bit, get a cup of coffee, and maybe we'll see you in a little while to hit the diagnosis. Because I got to worry this, you know, one of the other things about these segments, we always ask if a guy's going to be okay with this. And so after the diagnosis, you're going to have to tell me how our guy does. So, Dr. Brisbane, thanks so much for covering the screening. I'll see you back here in a little bit to talk about diagnosis. us and Jordan let's roll them out with a little long transit guitar work and we'll see you back real soon thanks Wayne looking forward to it thank you
42:15let's talk about it let's talk about it
42:38The Mail Room with Dr. Jesse Mills was a production of iHeartRadio. It was executive produced by Jordan Runtog. If you liked what you heard, please subscribe and leave a review. For more podcasts from iHeartRadio, check out the iHeartRadio app, Apple Podcasts, or wherever you listen to your favorite shows. This program was independently created by iHeartRadio. Novartis Pharmaceuticals Corporation is the exclusive advertising partner. It is intended for educational and informational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Please consult your healthcare provider for any medical or related questions or concerns before making any treatment decisions.
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