Philip G de Groot studies several areas of medical research, including the behavior of blood cells in clotting, innovative treatments for lung cancer, and the dynamics of yeast infections. He is particularly interested in how certain proteins and genetic factors influence blood clot risks, which is crucial for patients with disorders that affect blood clotting. Additionally, he investigates new strategies, such as exciting drug therapies for lung cancer that has changed its form and become more resistant to treatments. Furthermore, he delves into the biology of infections caused by yeasts, aiming to improve treatment options for patients suffering from these infections.
Key findings
Patients with congenital dysfibrinogenemia exhibit higher thrombin activity, increasing their risk for both excessive bleeding and blood clots.
A patient with histologic-transformed lung cancer showed significant improvement in brain lesions after being treated with tarlatamab.
Using a gaming app, researchers identified fine motor skills in psoriatic arthritis patients with 83% accuracy for low disease activity detection and 91% accuracy for distinguishing joint inflammation.
Transferring healthy gut bacteria to patients with metabolic syndrome resulted in a decrease in diastolic blood pressure, indicating a potential treatment avenue.
Patients with antiphospholipid syndrome can receive inaccurate INR measurements due to certain antibodies, highlighting the need for more reliable testing methods.
Frequently asked questions
Does Dr. de Groot study blood clotting disorders?
Yes, he researches how proteins in the blood affect clotting and the risks for patients with specific blood disorders.
What treatments has Dr. de Groot researched for cancer?
He has investigated the efficacy of tarlatamab for patients with transformed lung cancer, showing promising outcomes.
Is Dr. de Groot's work relevant to patients with infections?
Yes, his research on yeast infections, such as those caused by Candida albicans and other drug-resistant strains, aims to improve treatment options for affected patients.
How does Dr. de Groot's research help those with metabolic syndrome?
His studies focus on the effects of gut bacteria transfer on reducing blood pressure and understanding insulin resistance, which could lead to better treatment strategies.
What tools does Dr. de Groot use to assess conditions like psoriatic arthritis?
He utilizes innovative digital tools, including a serious game, to effectively measure fine motor skills in patients with psoriatic arthritis.
Publications in plain English
First Report of Response to Tarlatamab in a Patient With Histologic-Transformed SCLC From-Rearranged NSCLC: Case Report.
2026
JTO clinical and research reports
Wang K, Taslic CA, de Groot P, Parma MA, Paula AG +10 more
Plain English This study looked at a patient with a specific type of lung cancer that changed into a different form, which typically does not respond well to standard treatments. The patient was treated with a drug called tarlatamab and showed positive results, including improvement in brain lesions. This is important because it provides hope for patients with cancer that has transformed and become more difficult to treat, showing that tarlatamab might work where other therapies have failed.
Who this helps: This helps lung cancer patients, especially those whose cancer has changed and are running out of treatment options.
Fibrin-bound thrombin determines clot structure and blood thrombogenicity in normofibrinogenemia and dysfibrinogenemia.
2026
Haematologica
Sun S, Roest M, Urbanus RT, Campello E, Beck S +15 more
Plain English This study looked at how a protein called thrombin behaves when it is attached to fibrin, a main component of blood clots, in people with normal and abnormal fibrin levels. Researchers found that thrombin can stay active on fibrin longer than usual, which can lead to both excessive bleeding and increased risk of blood clots in patients with certain genetic disorders. Specifically, in patients with congenital dysfibrinogenemia, there was higher thrombin activity and reduced interaction with a natural inhibitor, which suggests they are at risk for complications.
Who this helps: This research benefits patients with congenital dysfibrinogenemia and their doctors by providing insight into their bleeding and clotting risks.
Novel Digital Biomarkers for Fine Motor Skills Assessment in Psoriatic Arthritis: The DaktylAct Touch-Based Serious Game Approach.
2025
IEEE journal of biomedical and health informatics
Vasileiou E, Dias SB, Hadjidimitriou S, Charisis V, Karagkiozidis N +8 more
Plain English This study looked at a new way to evaluate fine motor skills in patients with psoriatic arthritis (PsA) using a touchscreen game called DaktylAct. By measuring things like how long players take to pinch and the pressure they use while playing, researchers found that longer pinch times linked to higher disease activity, while less pressure during wrist movements associated with inflammation in the joints. The game correctly identified patients with low disease activity 83% of the time, and 91% of the time distinguished between patients with and without joint inflammation.
Who this helps: This helps patients with psoriatic arthritis by providing a fun and effective way to assess their hand function.
Citizen Science to Raise Antimicrobial Resistance Awareness in the Community: The MicroMundo Project in Spain and Portugal.
2025
Microbial biotechnology
Gil-Serna J, Antunes P, Campoy S, Cid Á, Cobo-Molinos A +37 more
Plain English The MicroMundo project studied how to increase awareness of antimicrobial resistance (AMR) by involving students in hands-on research. Over the past seven years, 32 research hubs at universities in Spain and Portugal engaged thousands of high school students to isolate bacteria from soil that could lead to new antibiotics. This effort not only educates young people about important health issues but also builds a community response to the growing threat of AMR.
Who this helps: This benefits patients by fostering new antibiotic discoveries and educating future healthcare professionals.
Automatic measurement of short-term variability of repolarization captures modulation by pacing on human electrograms.
2025
Heart rhythm O2
Chiu CSL, Loen V, Aranda Hernandez A, Smoczyńska A, Sprenkeler DJ +5 more
Plain English This study looked at a new automatic method for measuring short-term changes in the heart's electrical activity, which can indicate a risk of dangerous heart rhythms. The researchers tested this method on 14 patients and found that it accurately tracks changes during different heart pacing conditions. Specifically, the automatic measurements closely matched traditional methods, with a strong correlation score of 0.80, indicating reliability.
Who this helps: This benefits patients with heart conditions by enabling better monitoring and prevention of serious arrhythmias.
Wall incorporation of the β-1,3-glucan cross-linking protein Pir1 in the human pathogen Candida albicans is facilitated by the presence of two or more Pir repeat units.
2025
FEMS yeast research
Alvarado M, Moreno-Martínez AE, Micó M, Gómez-Navajas JA, Blázquez-Abellán A +5 more
Plain English Researchers studied a protein called Pir1 in the yeast Candida albicans, which is known to cause infections in humans. They found that while Pir1 plays a role in binding to certain components of the cell wall, removing the Pir1 gene did not impact the yeast's overall health or survival. Specifically, the presence of two specific parts of the Pir1 protein is crucial for its function in the cell wall.
Who this helps: This research benefits doctors and patients by improving the understanding of how Candida albicans maintains its structure and could lead to better treatment options for infections.
Loss ofinwild-type strains increases surface-exposed chitin and affects host-pathogen interaction.
2025
Frontiers in cellular and infection microbiology
Blázquez-Muñoz MT, Costa-Barbosa A, Alvarado M, Mendonça A, Benkhellat S +5 more
Plain English This research studied a protein called Cht3 in a type of yeast that causes infections, specifically looking at how it affects the yeast's growth and how it interacts with the immune system. The researchers found that when Cht3 was removed, the yeast had more chitin on its surface and was less able to cause disease. For example, the yeast's virulence decreased during infections, suggesting that Cht3 is important for both the yeast's growth and its ability to evade the immune system.
Who this helps: This helps patients at risk of yeast infections, as it could lead to new treatment options or vaccines.
Efficacy of the combination of amphotericin B and echinocandins againstand in thehost model.
2024
Microbiology spectrum
Hernando-Ortiz A, Eraso E, Jauregizar N, de Groot PW, Quindós G +1 more
Plain English This study looked at how well two antifungal medications, amphotericin B and echinocandins, work together against certain drug-resistant fungi that have become more common, especially during the COVID-19 pandemic. The research showed that this combination is effective against blood samples from these fungi, and it also performed well in a model that simulates human infections, highlighting its potential as a treatment option. This is important because it addresses the growing issue of drug resistance in fungal infections.
Who this helps: This helps patients with serious fungal infections, especially those who may be resistant to existing treatments.
A thrombin-driven neural net diagnoses the antiphospholipid syndrome without the need for interruption of anticoagulation.
2024
Blood advances
de Laat-Kremers RMW, Wahl D, Zuily S, Ninivaggi M, Regnault V +4 more
Plain English This study focused on developing a computer program (an artificial neural network) to diagnose antiphospholipid syndrome (APS) in patients who are on blood thinners called vitamin K antagonists. The researchers found that their program could accurately diagnose APS with an overall accuracy of 92%, and it maintained high accuracy even when patients did not have to stop their blood thinner treatment. This is important because it offers a way to identify this serious condition without disrupting necessary medication, which could lead to further complications.
Who this helps: This helps patients with APS who are on anticoagulation therapy and their doctors.
Altered whole blood thrombin generation and hyperresponsive platelets in patients with pancreatic cancer.
2024
Journal of thrombosis and haemostasis : JTH
Willems RAL, Konings J, Huskens D, Middelveld H, Pepels-Aarts N +7 more
Plain English This study looked at how blood clotting works in patients with pancreatic cancer compared to healthy people. It found that patients had higher levels of a substance called thrombin in their blood, which can lead to clots, and 22% of them experienced a blood clot event in six months. Understanding these changes can help doctors better assess the risk of blood clots in pancreatic cancer patients, leading to improved care.
Who this helps: This helps pancreatic cancer patients by providing better risk assessments for blood clots.
Viewpoint: The value of non-criteria antiphospholipid antibodies.
2024
Rheumatology (Oxford, England)
de Laat B, Gehlen R, de Groot PG
Plain English This study looked at whether certain autoantibodies, which were not included in the original criteria for diagnosing antiphospholipid syndrome (APS), should now be considered due to new research. After 17 years, the authors found that additional studies have shown these non-criteria antibodies could also play a role in causing complications like blood clots and pregnancy losses. This matters because including these antibodies in the APS diagnosis could help identify and treat more patients effectively.
Who this helps: This helps patients with APS and their doctors by potentially leading to better diagnosis and treatment options.
Linear systems characterization of the topographical spatial resolution of optical instruments.
2024
Applied optics
de Groot PJ, Daouda Z, Deck LL, Colonna de Lega X
Plain English This study focused on how well certain optical instruments can resolve details on surfaces, like texture or shape. Researchers improved a method for measuring this resolution, known as the instrument transfer function (ITF), and introduced new terms to better understand how these instruments work with different surface features. They found a way to directly measure the lateral resolving power of a specific type of microscope, showing that their new approach aligns well with theoretical predictions.
Who this helps: This benefits researchers and manufacturers of optical instruments, allowing them to enhance the accuracy of surface measurements.
TH open : companion journal to thrombosis and haemostasis
Zou J, Sun S, De Simone I, Ten Cate H, de Groot PG +4 more
Plain English This study looked at how certain signals in platelets control whether they are activated temporarily or permanently. Researchers found that using specific inhibitors resulted in less activation of a protein called integrin αIIbβ3, especially when they targeted different signaling pathways in the order of protein kinase C (PKC), glycogen synthase kinase 3, and β-arrestin. This matters because understanding these activation processes can help improve treatments that prevent blood clots, which is crucial for patients at risk of heart attacks or strokes.
Who this helps: Patients who need better blood clot prevention treatments.
Novel Proteome Targets Marking Insulin Resistance in Metabolic Syndrome.
2024
Nutrients
Warmbrunn MV, Bahrar H, de Clercq NC, Koopen AM, de Groot PF +16 more
Plain English This study examined how certain proteins in the body relate to insulin resistance in people with metabolic syndrome (MetSyn). Researchers found that specific proteins associated with inflammation can help distinguish between individuals who are insulin-resistant and those who are not. They measured these changes in 97 men with MetSyn and confirmed their findings in a larger group of 282 individuals. This research is important because it identifies potential new targets for treatment strategies in people suffering from metabolic syndrome.
Who this helps: This benefits patients with metabolic syndrome and their healthcare providers.
Interference of lupus anticoagulant causing antiprothrombin and anti-beta-2-glycoprotein I antibodies on international normalized ratio measurements: comparative analysis of international normalized ratio methods.
2024
Research and practice in thrombosis and haemostasis
Gehlen R, Moesbergen RG, Bai C, de Groot PG, Jansen AJG +3 more
Plain English This study looked at how certain antibodies in patients with antiphospholipid syndrome (APS) affect blood clotting tests that measure INR (International Normalized Ratio), which is important for patients on blood-thinning medication. The researchers found that antibodies known as antiprothrombin and anti-beta-2-glycoprotein I caused inaccurate higher INR readings when using some testing methods, especially point-of-care devices like CoaguChek Pro II. It’s crucial for APS patients to be tested with specific methods that are less affected by these antibodies to ensure they get the right treatment.
Who this helps: Patients with antiphospholipid syndrome and their doctors.
Disentangle beneficial effects of strain engraftment after fecal microbiota transplantation in subjects with MetSyn.
2024
Gut microbes
van der Vossen EWJ, Davids M, Voermans B, Wortelboer K, Hartstra AV +4 more
Plain English This study looked at how transferring healthy gut bacteria from donors to patients with metabolic syndrome (MetSyn) affects their health. Researchers found that when a higher percentage of the donor bacteria successfully settled in the patients, their diastolic blood pressure (the bottom number in a blood pressure reading) decreased. Specifically, higher engraftment correlated with reduced levels of a metabolite called 2-oxoarginine, which is linked to lower blood pressure. This is important because it shows that gut bacteria can play a role in improving health conditions related to metabolic syndrome.
Who this helps: Patients with metabolic syndrome.
Digital biomarkers for psoriatic arthritis: a qualitative focus group study on patient-perceived opportunities and barriers.
2024
RMD open
de Groot P, Wagenaar W, Foolen J, Tchetverikov I, Goekoop-Ruiterman YPM +4 more
Plain English This study looked at how patients with psoriatic arthritis (PsA) feel about using digital tools, like smartphone apps and wearables, to track their health and disease symptoms. Researchers conducted focus groups with 27 patients and found that while many are open to using these digital tools to manage their condition, they also see challenges, such as needing a variety of features to accurately reflect their symptoms and the importance of staying connected with their doctors. This matters because better monitoring can help patients manage their disease more effectively and possibly reduce the time spent figuring out how to cope with flare-ups.
Who this helps: Patients with psoriatic arthritis.
Functionally distinct anticoagulant mechanisms of endothelial cells.
2024
Thrombosis research
Schönichen C, Sun S, Middelveld H, Huskens D, de Groot PG +3 more
Plain English This study looked at how certain cells from blood vessels, called endothelial cells, help prevent blood clots. Researchers found that these cells delay the formation of a protein called thrombin, which is key in clotting, especially when various blood conditions were tested. Specifically, when certain compounds that normally help blood clotting were blocked, the ability of these endothelial cells to prevent clotting was significantly reduced, indicating they work through different mechanisms.
Who this helps: This research benefits patients at risk of blood clots, such as those with cardiovascular diseases.
The good, the bad, and the hazardous: comparative genomic analysis unveils cell wall features in the pathogen Candidozyma auris typical for both baker's yeast and Candida.
2024
FEMS yeast research
Alvarado M, Gómez-Navajas JA, Blázquez-Muñoz MT, Gómez-Molero E, Fernández-Sánchez S +5 more
Plain English This study looked at a drug-resistant yeast called Candidozyma auris, which is a serious health concern worldwide. Researchers found that while its cell wall structure is similar to other yeasts like Candida albicans and baker's yeast, there are specific differences in how it produces certain protective components. For instance, they identified 26 proteins in C. auris that aren't found in other Candida species, which could help explain its ability to cause infections.
Who this helps: This research benefits doctors and healthcare providers treating patients with infections caused by C. auris.
Antitachycardia pacing success in implantable cardioverter-defibrillators by patient, device, and programming characteristics.
2023
Heart rhythm
Sterns LD, Auricchio A, Schloss EJ, Lexcen D, Jacobsen L +3 more
Plain English This study looked at how well a treatment called antitachycardia pacing (ATP) works in patients with implantable devices that help control fast heartbeats. They found that ATP successfully stopped fast heartbeats more than 80% of the time, with slightly better rates for certain types of heart devices and situations. Specifically, when patients received 8 or more ATP sequences, the success rate rose to 87%, which also helped reduce the need for painful shocks from the devices.
Who this helps: This research benefits patients with implantable heart devices by potentially reducing their reliance on painful shocks and improving heart rhythm treatment.
Usefulness of Chromogenic Media with Fluconazole Supplementation for Presumptive Identification of.
2023
Diagnostics (Basel, Switzerland)
Ruiz-Gaitán A, Sigona-Giangreco I, Pérez-Royo JM, Garcia-Bustos V, García-Hita M +4 more
Plain English This study focused on improving the detection of a dangerous fungus called Candida auris, which poses a significant health risk. Researchers tested different types of special growth media to see how well they could identify C. auris compared to other fungi. They found that using a media called CHROMagarTM Candida Plus showed C. auris colonies in various shades of blue and pink, while adding fluconazole (an antifungal) helped clearly distinguish C. auris in mixed samples by selecting only the resistant strains, making it easier to identify.
Who this helps: Patients at risk of Candida auris infections and healthcare providers treating these infections.
Mother-to-infant microbiota transmission and infant microbiota development across multiple body sites.
2023
Cell host & microbe
Bogaert D, van Beveren GJ, de Koff EM, Lusarreta Parga P, Balcazar Lopez CE +9 more
Plain English This study looked at how mothers pass beneficial microbes to their infants in the first month after birth, comparing babies born by Cesarean section to those born vaginally. The researchers found that, on average, about 58.5% of the microbes in an infant come from their mother. For babies born via C-section, there was less transfer of microbes from the mother's stool but more from breast milk, showing that different methods of delivery influence which microbes infants receive.
Who this helps: This research benefits new parents and healthcare providers by highlighting the importance of microbial transmission for newborn health.
Integrated post-genomic cell wall analysis reveals floating biofilm formation associated with high expression of flocculins in the pathogen Pichia kudriavzevii.
2023
PLoS pathogens
Alvarado M, Gómez-Navajas JA, Blázquez-Muñoz MT, Gómez-Molero E, Berbegal C +3 more
Plain English Researchers studied the cell wall of a yeast called Pichia kudriavzevii, which can cause infections. They found that when grown in certain conditions, this yeast forms a floating biofilm instead of sticking to surfaces; specifically, they identified an increase in a protein called Flo110 which is linked to this floating behavior. Understanding this cell wall structure and biofilm formation is important because it could help develop better treatments for infections caused by this pathogen.
Who this helps: This helps patients at risk of infections from Pichia kudriavzevii.
Anti-β2-glycoprotein I and anti-phosphatidylserine/prothrombin antibodies interfere with cleavage of factor V(a) by activated protein C.
2023
Journal of thrombosis and haemostasis : JTH
Noordermeer T, Chemlal S, Jansma JJ, van der Vegte V, Schutgens REG +4 more
Plain English This study looked at how certain antibodies in patients with antiphospholipid syndrome affect blood clotting by interfering with a process called activated protein C (APC) resistance. Researchers found that two types of antibodies—anti-β2-glycoprotein I and anti-phosphatidylserine/prothrombin—blocked the normal action of APC, which is crucial for preventing excessive clotting, leading to changes in clotting patterns. Specifically, they observed that these antibodies hindered the cleavage of factor V at key points, which is necessary for regulating blood clotting activity.
Who this helps: This helps patients with antiphospholipid syndrome and their doctors in managing their thrombotic risk.
Crucial roles of red blood cells and platelets in whole blood thrombin generation.
2023
Blood advances
Sun S, Campello E, Zou J, Konings J, Huskens D +11 more
Plain English This study examined how red blood cells (RBCs) and platelets affect blood clot formation, using a new method that measures the entire clotting process. The researchers found that whole blood generates thrombin, a key protein in clotting, faster and in larger amounts than blood separated into plasma with varying platelet levels when exposed to certain triggers, with significant differences noted at low concentrations (specific details on these concentrations were not provided). These findings are important because they can help doctors better understand bleeding or clotting risks in patients, particularly those with conditions like anemia or polycythemia vera.
Who this helps: This study benefits patients with bleeding or clotting disorders, as well as their doctors.
Not Everything Is as It Seems: A Case Series and Overview of Diseases Mimicking Antineutrophil Cytoplasmic Antibody-Associated Vasculitis.
2023
Journal of clinical medicine
Houben E, de Groot PF, Vegting Y, Vos JMI, Nur E +3 more
Plain English This study focused on a rare disease called ANCA-associated vasculitis (AAV) and the challenges doctors face when diagnosing it. Researchers found that several other diseases can show similar signs to AAV, making it tricky to identify the correct condition; the study highlights the importance of careful diagnosis. Understanding these mimicking diseases is crucial because starting the right treatment early can prevent serious damage to organs and save lives.
Who this helps: This helps doctors and patients who are facing difficult diagnoses.
Case report: XMEN disease: a patient with recurrent Hodgkin lymphoma and immune thrombocytopenia.
2023
Frontiers in medicine
de Groot PF, Kwakernaak AJ, van Leeuwen EMM, van Spaendonk RML, Kooi EJ +4 more
Plain English This study focuses on a 28-year-old man with XMEN disease, a genetic condition that affects the immune system and makes him vulnerable to infections and certain cancers, like Hodgkin lymphoma. After undergoing stem cell treatment for his cancer, he developed a blood condition called immune thrombocytopenia. Testing revealed that his XMEN disease was caused by a mutation in the MAGT1 gene, which disrupts important functions of immune cells that help fight infections and tumors, emphasizing the need for early diagnosis and tailored treatment options.
Who this helps: This research benefits patients with XMEN disease and their healthcare providers by improving understanding and management of their condition.
Osteoprotegerin modulates platelet adhesion to von Willebrand factor during release from endothelial cells.
2022
Journal of thrombosis and haemostasis : JTH
Wohner N, Sebastian S, Muczynski V, Huskens D, de Laat B +2 more
Plain English This research studied how a protein called osteoprotegerin affects how well platelets (cells that help blood clot) stick to a substance called von Willebrand Factor (VWF) when it is released from blood vessel cells. The study found that osteoprotegerin reduces platelet adhesion to VWF by about 40%. Understanding this process is important because it could help clarify how blood clotting is regulated, especially during inflammation or in patients with bleeding disorders.
Who this helps: This helps patients with bleeding disorders and their doctors.
Imaging Primer on Chimeric Antigen Receptor T-Cell Therapy for Radiologists.
2022
Radiographics : a review publication of the Radiological Society of North America, Inc
de Groot PM, Arevalo O, Shah K, Strange CD, Shroff GS +4 more
Plain English Researchers studied CAR T-cell therapy, a promising treatment for certain blood cancers, including specific types of lymphomas and leukemia. They found that this therapy can lead to remission in over 80% of patients within 2-3 weeks, but it can also cause significant side effects like cytokine release syndrome and neurotoxicity. Understanding how to recognize these effects on medical imaging is important for improving patient care and avoiding misdiagnoses.
Who this helps: This helps patients undergoing CAR T-cell therapy and their doctors.
Genotyping-in-thousands by sequencing (GT-seq) of noninvasive faecal and degraded samples: A new panel to enable ongoing monitoring of Canadian polar bear populations.
2022
Molecular ecology resources
Hayward KM, Clemente-Carvalho RBG, Jensen EL, de Groot PVC, Branigan M +4 more
Plain English This study focused on developing a new genetic testing method called GT-seq to monitor polar bear populations using noninvasive samples like feces. Researchers found that they could successfully analyze DNA from 62.9% of the fecal samples collected, allowing them to identify individual bears, determine their sex, and understand their relationships within the population. This is important because it offers a cost-effective way to track polar bear populations without needing direct contact, which can aid in conservation efforts.
Who this helps: This benefits wildlife researchers and conservationists working to protect polar bears and other endangered species.
Early-life viral infections are associated with disadvantageous immune and microbiota profiles and recurrent respiratory infections.
2022
Nature microbiology
de Steenhuijsen Piters WAA, Watson RL, de Koff EM, Hasrat R, Arp K +5 more
Plain English This study looked at 114 healthy infants to understand how early viral infections affect their immune systems and gut bacteria, potentially leading to more respiratory infections. Researchers found that infants who had viral infections shortly after birth showed changes in their immune responses and gut bacteria, leading to a higher risk of respiratory infections in the following months; for instance, these infants had a greater variety of specific bacteria linked to respiratory infections. This research is important because it suggests that a baby's early interactions with viruses can shape their health and vulnerability to illnesses later on.
Who this helps: This helps infants and their caregivers by highlighting the importance of monitoring early viral infections to potentially prevent future health problems.
Differences in thrombin and plasmin generation potential between East African and Western European adults: The role of genetic and non-genetic factors.
2022
Journal of thrombosis and haemostasis : JTH
Temba GS, Vadaq N, Wan J, Kullaya V, Huskens D +20 more
Plain English This study looked at differences in blood clotting factors between healthy adults from Tanzania and the Netherlands, focusing on how genetics and inflammation affect these differences. Researchers found that Tanzanians had a stronger ability to produce thrombin (a key protein for blood clotting) and plasmin (involved in breaking down clots) compared to Dutch participants, with 50% of Tanzanians showing high thrombin levels and lower plasmin levels than most Dutch individuals. These findings suggest that the immune response, genetics, and diet play significant roles in how different populations manage blood coagulation, which is important for understanding health risks related to blood clotting.
Who this helps: This research benefits patients and healthcare providers by improving knowledge of blood clotting variations in different populations.
Comparing the human milk antibody response after vaccination with four COVID-19 vaccines: A prospective, longitudinal cohort study in the Netherlands.
2022
EClinicalMedicine
Juncker HG, Mulleners SJ, Ruhé EJM, Coenen ERM, Bakker S +11 more
Plain English This study looked at how breastfeeding mothers' bodies respond in terms of antibodies after getting vaccinated against COVID-19, specifically comparing four different vaccines: Pfizer-BioNTech, Moderna, Oxford/AstraZeneca, and Johnson & Johnson. Researchers found that mothers who received mRNA vaccines (like Pfizer and Moderna) had significantly higher levels of antibodies in their breast milk compared to those who received vector-based vaccines (such as AstraZeneca and Johnson & Johnson) — for example, the average antibody response 70 days after vaccination was about 50 for Moderna, while it was around 28 for Johnson & Johnson. This finding is important because it suggests that babies who are breastfed by mothers vaccinated with mRNA vaccines may have better immune protection against COVID-19.
Who this helps: This helps breastfeeding mothers and their infants.
The development of the extravascular defibrillator with substernal lead placement: A new Frontier for device-based treatment of sudden cardiac arrest.
2022
Journal of cardiovascular electrophysiology
Thompson AE, Atwater B, Boersma L, Crozier I, Engel G +8 more
Plain English This study introduces a new type of heart device called the extravascular implantable cardioverter-defibrillator (EV ICD), which is implanted under the chest without going through the blood vessels. Researchers found that this system can provide life-saving shocks and pacing with fewer complications than traditional devices, having been tested in over 140 patients so far. The EV ICD is significant because it reduces risks associated with older methods and can potentially prevent sudden cardiac death effectively while being smaller and requiring less power.
Who this helps: This benefits patients at risk of sudden cardiac events and their doctors involved in managing their treatment.
Platelet Activation via Glycoprotein VI Initiates Thrombin Generation: A Potential Role for Platelet-Derived Factor IX?
2022
Thrombosis and haemostasis
Li L, Roest M, Meijers JCM, de Laat B, Urbanus RT +2 more
Plain English This study looked at how collagen triggers the blood clotting process through platelets, which are small cells in our blood that help with healing. The researchers discovered that when platelets were activated in the presence of collagen, they could effectively start the clotting process, even when certain factors normally needed for clotting were missing; for instance, being 100% effective in blood lacking FVII and FXII. This is important because it reveals a new way platelets contribute to clotting, potentially influencing how we approach treatments for bleeding disorders.
Who this helps: This benefits patients with bleeding disorders as well as doctors involved in their care.
Functional changes in hemostasis during asexual and sexual parasitemia in a controlled human malaria infection.
2022
PloS one
Huang S, van der Heijden W, Reuling IJ, Wan J, Yan Q +10 more
Plain English This study examined how malaria affects blood platelets and clotting in 16 people intentionally infected with the parasite that causes malaria. It found that while the number of platelets dropped during the early infection, it returned to normal during the later stage when parasites are present in a different form. Notably, although the platelets were decreasing, they didn’t become overly reactive, and there were significant increases in a protein that helps with blood clotting.
Who this helps: This research is beneficial for doctors treating malaria patients, as it enhances understanding of how the infection affects blood clotting.
Long-Term Mild Heat Causes Post-Mitotic Pollen Abortion Through a Local Effect on Flowers.
2022
Frontiers in plant science
Xu J, Jansma SY, Wolters-Arts M, de Groot PFM, Jansen MJ +1 more
Plain English This study looked at how prolonged mild heat affects the development of pollen in tomato flowers. Researchers found that three days of mild heat exposure during a critical stage of pollen development significantly lowered pollen viability, meaning the flowers produced less viable pollen. Understanding this effect is important because it helps explain how rising temperatures can negatively impact crop reproduction and yield.
Who this helps: This benefits farmers and agricultural scientists focused on improving crop resilience to climate change.
Top-Down, Knowledge-Based Genetic Reduction of Yeast Central Carbon Metabolism.
2022
mBio
Postma ED, Couwenberg LGF, van Roosmalen RN, Geelhoed J, de Groot PA +1 more
Plain English This study looked at the genetic make-up of the yeast *Saccharomyces cerevisiae*, particularly focusing on its central carbon metabolism (CCM). Researchers deleted 35 genes related to CCM, which is about 32% of the proteins, and found that the yeast still performed almost the same in various environments, with minimal changes in its ability to grow. This matters because it shows that yeast can maintain its basic functions even with significant genetic simplifications, which could help in future research and engineering of yeast for industrial purposes.
Who this helps: This helps researchers and companies that work with yeast in fermentation and biotechnology.
Chromosome-level assemblies from diverse clades reveal limited structural and gene content variation in the genome of Candida glabrata.
2022
BMC biology
Marcet-Houben M, Alvarado M, Ksiezopolska E, Saus E, de Groot PWJ +1 more
Plain English Researchers studied the yeast Candida glabrata, which can cause infections, to understand the differences in its genetic makeup across various strains. They created detailed genomic maps of 21 strains and found that while most of the genetic structure is stable, there are some differences in genes related to how the yeast attaches to surfaces. Specifically, they discovered four new gene groups linked to adhesion and noted that these genes undergo changes over time, showing that some strains may have different abilities to attach.
Who this helps: This research benefits doctors and health professionals by providing better insights into the genetic diversity of Candida glabrata, aiding in the treatment of infections it causes.
Reversible Platelet Integrin αIIbβ3 Activation and Thrombus Instability.
2022
International journal of molecular sciences
Zou J, Swieringa F, de Laat B, de Groot PG, Roest M +1 more
Plain English This study looked at how a specific protein (integrin αIIbβ3) on platelets helps them stick together, which is crucial for stopping bleeding and forming blood clots. The researchers found that platelets can temporarily activate this protein and only stick together for limited periods, suggesting that some genetic defects can lead to unstable blood clots in mice. Understanding how this reversible activation works can help improve blood-thinning medications used to prevent harmful blood clots.
Who this helps: This research helps patients at risk of blood clots and doctors who treat them.
Habitat Imaging Biomarkers for Diagnosis and Prognosis in Cancer Patients Infected with COVID-19.
2022
Cancers
Aminu M, Yadav D, Hong L, Young E, Edelkamp P +23 more
Plain English This study looked at how well AI can diagnose and predict the severity of COVID-19 in cancer patients compared to the general population. Researchers analyzed 951 CT scans (420 from cancer patients and 531 from people without cancer) and found that the AI models were especially effective for cancer patients, showing nearly perfect results. This is important because it means that better tools can be developed to manage COVID-19 specifically for cancer patients, who are at greater risk.
Who this helps: Cancer patients facing COVID-19 risks and their healthcare providers.
Characterization of Awp14, A Novel Cluster III Adhesin Identified in a High Biofilm-FormingIsolate.
2021
Frontiers in cellular and infection microbiology
Fernández-Pereira J, Alvarado M, Gómez-Molero E, Dekker HL, Blázquez-Muñoz MT +3 more
Plain English This study focused on a particular strain of fungus that causes infections and produces a lot of biofilm, which helps it stick to surfaces like catheters. Researchers found that this strain had eight unique proteins that help it stick, including a new protein called Awp14. Although Awp14 doesn't directly cause high biofilm formation, it appears to play a role in how the fungus interacts with its surroundings.
Who this helps: This research benefits doctors and healthcare professionals in understanding fungal infections better, leading to improved treatments.
Platelet Activation Mechanisms and Consequences of Immune Thrombocytopenia.
2021
Cells
Sun S, Urbanus RT, Ten Cate H, de Groot PG, de Laat B +2 more
Plain English This study looked at how certain autoimmune disorders affect blood platelets, which are crucial for blood clotting. It found that in cases of immune-induced thrombocytopenia (low platelet count), increased platelet activity can lead to higher risks of blood clots, while also being suppressed by auto-antibodies. Understanding these mechanisms is important because they could help identify better treatments for those affected by autoimmune disorders and their complications.
Who this helps: Patients with autoimmune disorders, particularly those dealing with low platelet counts and associated risks.
Umbilical Cord Procalcitonin to Detect Early-Onset Sepsis in Newborns: A Promising Biomarker.
2021
Frontiers in pediatrics
Dongen ORE, van Leeuwen LM, de Groot PK, Vollebregt K, Schiering I +3 more
Plain English This study looked at a blood test called procalcitonin (PCT) in umbilical cord blood to see if it can help detect early-onset sepsis (EOS) in newborns. Researchers found that levels of PCT were higher in babies with confirmed or likely EOS compared to healthy babies, with a sensitivity of 83% and a specificity of 62%, meaning it could effectively identify some infected newborns. This matters because it could reduce unnecessary antibiotic use in healthy infants who don’t actually have an infection.
Who this helps: Newborns and their doctors.
A novel class of Candida glabrata cell wall proteins with β-helix fold mediates adhesion in clinical isolates.
2021
PLoS pathogens
Reithofer V, Fernández-Pereira J, Alvarado M, de Groot P, Essen LO
Plain English This study focused on a yeast called Candida glabrata, which can cause infections in people. Researchers discovered a new group of proteins on its surface that help the yeast stick to surfaces in the body, specifically highlighting that one protein called Awp2 is essential for its adhesion and ability to form biofilms. They found out that this yeast has 42 similar proteins that aid in adapting its surface to better cling to surfaces, which can make infections harder to treat.
Who this helps: This helps doctors and researchers understand how Candida glabrata causes infections, which could lead to better treatments for patients affected by this yeast.