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Blood test predicts dementia 25 years before symptoms begin

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A blood test could predict dementia risk in women up to 25 years before symptoms appear, new research suggests.

Researchers from the University of California San Diego reported the findings on 10 March 2026, showing that higher levels of phosphorylated tau 217, or p-tau217, were strongly associated with future mild cognitive impairment, meaning early memory or thinking problems, and dementia.

The findings are based on data from 2,766 participants in the Women’s Health Initiative Memory Study, a large national study in the US.

The women were aged 65 to 79, cognitively healthy when they enrolled in the late 1990s and followed for up to 25 years.

Blood samples collected at baseline, meaning at the start of the study, were analysed years later to measure p-tau217, a form of tau protein linked to the brain changes seen in Alzheimer’s disease.

Over the follow-up period, women with higher levels of p-tau217 in their blood at the outset were much more likely to develop dementia later in life.

As levels of the biomarker increased, so did the risk, with women who had the highest levels facing the greatest likelihood of developing dementia over the long term.

Aladdin Shadyab, first author and associate professor of public health and medicine at UC San Diego, said: “Our study suggests we may be able to identify women at elevated risk for dementia decades before symptoms emerge.

“That kind of long lead time opens the door to earlier prevention strategies and more targeted monitoring, rather than waiting until memory problems are already affecting daily life.”

However, the researchers found the risk of cognitive impairment or dementia linked to higher p-tau217 levels was not the same for everyone.

Higher levels were more strongly associated with poorer cognitive outcomes in women over 70 than in those younger than 70 at the start of the study, and in those carrying the APOE ε4 gene, a genetic risk factor for Alzheimer’s disease.

The study also found that p-tau217 was more predictive of dementia among women who had been randomised to oestrogen plus progestin hormone therapy than among those given a placebo.

The strength of the association also differed between white and Black women, though combining p-tau217 with age improved dementia prediction similarly in both groups.

Linda McEvoy, senior author, senior investigator at Kaiser Permanente Washington Health Research Institute and professor emeritus at the Herbert Wertheim School of Public Health, said: “Blood-based biomarkers like p-tau217 are especially promising because they are far less invasive and potentially more accessible than brain imaging or spinal fluid tests.

“This is important for accelerating research into the factors that affect risk of dementia and for evaluating strategies that may reduce risk.”

Blood-based biomarkers are not currently recommended for clinical use in people without symptoms of cognitive impairment.

The authors noted that additional studies are needed to determine how p-tau217 testing might be used in routine clinical care and whether early identification can meaningfully change outcomes.

Future research will also explore how factors such as hormone therapy, genetics and age-related health conditions interact with plasma p-tau217 over the course of someone’s life to affect dementia risk.

Shadyab added: “Ultimately, the goal is not just prediction, but using that knowledge to delay or prevent dementia altogether.”

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From Hologic to Ark Surgical: Why Joseph LaBruzzo is betting on the future of women’s surgical innovation

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After more than two decades leading organisations at some of the world’s most respected medical device companies, including Hologic, SenoRx Breast Care, and BTL Industries, Joseph B. LaBruzzo is embarking on a new chapter as President & CEO of U.S. Operations and Board Member at Ark Surgical.

We sat down with Joseph to discuss what drew him to Ark Surgical, why he believes women’s surgical innovation is entering a transformative era, and what it takes to bring meaningful technologies from concept to standard of care.

You have held leadership positions at some of the biggest names in MedTech. What attracted you to Ark Surgical?

Throughout my career, I’ve been fortunate to work with organisations that developed technologies capable of changing the standard of care.

What attracted me to Ark Surgical is the opportunity to help address a meaningful unmet need in gynecologic surgery with an innovation that has the potential to improve patient outcomes while preserving the benefits of minimally invasive surgery.

Opportunities like that don’t come along very often.

FemTech World recently highlighted that many women remain unaware of gynecologic cancers and that unexpected diagnoses continue to have a profound impact on patients and families.

How has your own experience shaped the way you think about innovation in women’s health?

Earlier in my career, I witnessed many women receive life-changing cancer diagnoses.

Those experiences stayed with me and reinforced my belief that if there’s an opportunity to reduce risk through better innovation, it’s one worth pursuing.

That’s one of the reasons I was drawn to Ark Surgical.

The vast majority of minimally invasive gynecologic procedures are performed for conditions believed to be benign. Unfortunately, in rare cases, pathology later reveals an unexpected malignancy.

LapBox was designed with a proprietary dual-wall tissue containment system to help facilitate contained specimen retrieval and minimise the risk of tissue spillage during laparoscopic procedures.

I believe innovations like this can help surgeons manage the unexpected while preserving the many benefits of minimally invasive surgery for women.

Women’s health has gained significant momentum in recent years, yet surgical innovation often receives less attention than diagnostics or therapeutics. Why do you think that is?

Women’s health has historically been underfunded and underserved across many areas of medicine, and surgery is no exception.

While we’ve seen tremendous advances in diagnostics and pharmaceuticals, there are still important opportunities to improve the surgical experience for both physicians and patients.

Innovation that enhances safety, efficiency, and outcomes has the potential to make a lasting impact.

What excites you most about LapBox?

LapBox addresses a very real challenge that gynecologic surgeons face during minimally invasive procedures.

It was thoughtfully designed to integrate seamlessly into the surgical workflow while providing an added layer of confidence when tissue retrieval is required.

I believe technologies that solve real clinical challenges in a practical way have the greatest potential to become part of the standard of care.

What do you see as the biggest unmet needs in minimally invasive gynecologic surgery today?

The future of surgery isn’t simply about making procedures less invasive. It’s about making them smarter and safer.

Surgeons need technologies that integrate seamlessly into their workflow while helping them navigate increasingly complex clinical situations.

Every advancement that helps reduce risk while preserving the benefits of minimally invasive surgery has the potential to improve outcomes for both physicians and patients.

That’s where I believe the greatest opportunities for innovation exist.

As you take on this new role, what are your priorities over the next 12 months?

Our focus over the next 12 months is to build a strong foundation for growth. That means expanding physician partnerships, driving early clinical adoption, growing our team, and ensuring that more surgeons have access to technologies like LapBox.

At the same time, we’re focused on building strategic relationships with investors, healthcare systems, and industry partners that support our long-term vision.

What advice would you give entrepreneurs building the next generation of women’s health companies?

Start with a real clinical problem and never lose sight of the patient.

Great technology alone isn’t enough. You also need strong clinical evidence, physician advocates, and a clear market strategy. The companies that succeed are the ones that bring all of those pieces together while remaining focused on improving patient care.

About Joseph B. LaBruzzo

As President & CEO of U.S. Operations and Board Member, Joseph LaBruzzo is leading Ark Surgical’s U.S. growth strategy, physician partnerships, strategic investment initiatives, and organisational expansion, supporting the company’s mission to advance safer minimally invasive gynecologic surgery through innovative technologies.

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Cancer cells secretly hijacking fertility protein to survive chemo, research finds

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Cancer cells may hijack a fertility protein to repair damaged DNA and survive chemotherapy, research suggests.

The findings could point to a way of making existing cancer treatments more effective.

SYCP1 is a protein normally involved in producing sperm and eggs.

Researchers at the University of Liverpool found that the protein, previously thought to work only in reproduction, can be reactivated in cancer cells, where it helps tumours survive and grow.

SYCP1 usually helps chromosomes pair during meiosis, the form of cell division that produces reproductive cells.

In cancer cells, however, the protein appears to take on another role. It enters the nucleus, the cell’s control centre, binds directly to DNA and regulates genes involved in cell division and DNA repair.

DNA repair is how cells fix damage to their genetic code. In cancer, this process can help tumour cells survive treatment.

The researchers found that removing SYCP1 made cancer cells much more sensitive to chemotherapy drugs that damage DNA.

The findings suggest cancers may use SYCP1 to repair damage caused by treatment and continue growing.

Dr Urszula McClurg, lecturer in biochemistry, cell and systems biology at the University of Liverpool, said: “Our findings show that cancer cells can hijack proteins that normally exist only in reproductive tissues and give them completely new jobs.

“Understanding these unexpected functions opens up exciting opportunities to develop new treatments that make existing cancer therapies more effective.”

The work challenges the long-held belief that proteins active only in fertility have no biological relevance outside the reproductive system.

Researchers say these specialised proteins could provide new treatment targets across many types of cancer.

The study also offers a new view of how cancers evolve by repurposing developmental and reproductive processes.

The findings highlight SYCP1 as a candidate for future precision cancer therapies, which are treatments based on the specific biology of a patient’s cancer.

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What “women’s healthmaxxing” means for patient trust and the femtech industry

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Women’s health has become one of the most searched and shared topics online, from cycle syncing and cortisol management to menopause hacks, supplements, hormone testing and clinician-creator content.

That surge in attention, sometimes dubbed “healthmaxxing,” is changing how women find, evaluate and act on health information, and it is starting to reshape the relationship between patients, clinicians and the companies building products for this market.

For providers, the shift means patients are arriving better informed but also more exposed to unverified claims, putting pressure on clinicians to engage with online narratives rather than dismiss them.

For femtech and pharma companies, it opens a route to reach and educate consumers at scale, but also raises the stakes on credibility: products and messaging that ride the trend without clinical grounding risk eroding the trust the industry has spent years building.

Investors are watching the same dynamic from a different angle.

Attention-driven demand can be a signal of where the next wave of femtech growth will come from, but distinguishing genuine clinical need from viral momentum is increasingly part of due diligence.

The net effect is a widening gap between companies that treat cultural attention as a distribution channel for credible, evidence-based care, and those that risk being swept up in trends with little clinical substance behind them.

How that gap plays out will shape patient trust, clinical relationships and commercial opportunity across the women’s health industry for years to come.

These themes will be explored in more depth in an upcoming webinar, “Women’s Healthmaxxing: The Opportunity & Risks of Cultural Attention for the Women’s Health Industry,” hosted by the Women’s Health Innovation Summit (WHIS), featuring Ellen Wilcox (Listen Ventures), Jessica Bell van der Wal (Frame Fertility), Dr. Tosin Sotubo-Ajayi (NHS, BBC and more) and Nora Lansen (Elektra Health).

Register free for the webinar on 23 July 2026 at https://events.virtualpro.com/womens-health-series-webinar-july-2026/registration

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