DAVID LEE HOLDEN, MD

OKLAHOMA CITY, OK

Research Active
Orthopaedic Surgery NPI registered 21+ years 50 publications 2021 – 2026 NPI: 1801894159
COVID-19NeoplasmsBiomarkersBrainPilot ProjectsStentsPlatelet Aggregation InhibitorsMultiple SclerosisMacaca mulattaPositron-Emission TomographyRadiopharmaceuticalsTissue DistributionReceptors, N-Methyl-D-AspartateBurnsFluorine Radioisotopes

Practice Location

9600 BROADWAY EXT
OKLAHOMA CITY, OK 73114-7408

Phone: (405) 230-9000

What does DAVID HOLDEN research?

Dr. David Holden studies several medical fields, primarily exploring conditions such as Multiple Sclerosis and brain disorders. He investigates innovative methods for monitoring nerve damage in Multiple Sclerosis using remote sampling techniques, making it easier for patients to track their health from home. His research also delves into brain imaging techniques, examining compounds that help visualize brain receptors and their effectiveness in various brain disorders. Additionally, he seeks to improve treatments for burn patients and those with acute kidney injuries and evaluates new therapies such as CRISPR in livestock to combat viruses like African swine fever.

Key findings

  • In a study on Multiple Sclerosis, neurofilament light chain levels were highest in cerebrospinal fluid at 449.78 pg/ml, indicating effective monitoring using home-collected samples.
  • Cladribine treatment for relapsing-remitting Multiple Sclerosis led to a FLC index decrease from 164.5 to 64.4 over 96 weeks, demonstrating its effectiveness in reducing disease activity.
  • In burn patients, a new blood clot guideline reduced serious clot issues from 5 to 3 cases over two years, with 88% adherence to the recommended treatment.
  • Among 1,297 burn patients, 6.4% developed early acute kidney injury, which is linked to increased risks of mortality and mechanical ventilation.
  • Using a new imaging agent, better visualization of brain receptors was achieved, with uptake values for one compound ranging from 61.5 to 169.4 mL/cm.

Frequently asked questions

Does Dr. Holden study Multiple Sclerosis?
Yes, he researches methods to monitor and treat Multiple Sclerosis, focusing on neurofilament light chain levels as a marker for nerve damage.
What treatments has Dr. Holden researched for burn patients?
He has studied guidelines for preventing blood clots in burn patients, showing significant improvements in treatment adherence and outcomes.
Is Dr. Holden's work relevant to patients suffering from brain disorders?
Yes, his research on brain imaging and receptor visualization aims to improve diagnostic tools and treatments for various brain disorders.
What breakthroughs has Dr. Holden achieved in cancer care management?
He has evaluated the effectiveness of virtual meetings for cancer multidisciplinary teams, finding them to be as effective as in-person meetings.
Has Dr. Holden researched CRISPR technology?
Yes, he investigated the use of CRISPR as a therapeutic option against African swine fever, demonstrating its potential to significantly reduce the virus in infected pigs.

Publications in plain English

Burn-Specific Venous Thromboembolism Prophylaxis: A 2-Year Quality Improvement Project.

2026

Journal of burn care & research : official publication of the American Burn Association

Sheahan G, Singer Y, Xu S, Kay C, Walker H +4 more

Plain English
The study looked at how a new guideline for preventing blood clots in burn patients was put into practice over two years. Researchers compared treatment results of 138 burn patients, finding that after the new guideline was introduced, the number of serious blood clot issues dropped from 5 to 3, while most patients (88%) followed the recommended treatment. However, there was an increase in major bleeding events early on, which was later resolved with changes in treatment. Who this helps: This helps burn patients by reducing their risk of blood clots.

PubMed

Characterization of [F]PF-NB1 Enantiomers for Imaging NMDA GluN2B Receptors in Nonhuman Primates and Comparison with AnalogousF-labeled Radiotracers.

2026

ACS chemical neuroscience

Alluri SR, Zheng MQ, Holden D, Ahmed H, Felchner Z +4 more

Plain English
This study looked at two forms of a chemical compound called [F]PF-NB1 that can help visualize brain receptors important for signaling in the nervous system. Researchers tested these compounds in monkeys and found that one form, referred to as the (+)-enantiomer, showed significantly better brain uptake and distribution compared to the other form, with regional volume of distribution values ranging from 61.5 to 169.4 mL/cm, compared to 48.6 to 88.9 mL/cm for the (-)-enantiomer. These findings are important because they help identify a better option for imaging GluN2B receptors, which are linked to various brain disorders, paving the way for improved diagnostic tools in medicine. Who this helps: This helps researchers and doctors working on brain disorders.

PubMed

Lipidomic dataset of optic nerves from the silicone oil-induced ocular hypertension mouse model.

2026

Data in brief

Hao Z, Li W, Moceri I, Ma R, Holden D +4 more

Plain English
This study examined the composition of lipids in the optic nerves of mice with glaucoma caused by increased eye pressure. Researchers found significant changes in lipid levels between the eyes with high pressure and those with normal pressure, studying samples at two different time points post-treatment. This is important because understanding lipid changes can provide insights into how glaucoma damages the optic nerve, potentially leading to better treatments. Who this helps: This benefits researchers and eye care professionals working to improve glaucoma management and treatments.

PubMed

Evaluating the feasibility of a remote sampling method for neurofilament light chain measurements in Multiple Sclerosis.

2026

Multiple sclerosis and related disorders

Gklinos P, Vickaryous N, Huxford B, Rios F, Schalk L +3 more

Plain English
This study looked at a new way of measuring neurofilament light chain (NfL), a marker of nerve damage in people with Multiple Sclerosis (MS), using remote sampling methods like finger-prick tests. Researchers found that NfL levels were highest in cerebrospinal fluid (449.78 pg/ml) compared to blood plasma (71.48 pg/ml) and finger-prick samples (4.02 pg/ml), but there were strong correlations between the different sampling methods. This is important because it shows that patients can reliably collect their own samples at home, making monitoring easier and more accessible. Who this helps: Patients with Multiple Sclerosis who need regular monitoring of their condition.

PubMed

High-resolution in utero SV2A PET imaging of the nonhuman primate brain using the NeuroEXPLORER.

2026

Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism

Mehta S, Sun H, Micali N, Holden D, Fowles K +11 more

Plain English
This study focused on using a new brain imaging device, the NeuroEXPLORER, to look at the brains of pregnant monkeys and their unborn babies. Researchers found that this new scanner provided clearer images and better measurements of brain activity compared to older devices, with differences in brain regions showing up to 78.3% between mothers and their fetuses. This is important because it helps us understand brain development before birth, which can have implications for studying brain disorders. Who this helps: This helps researchers studying brain development and potential future treatments for neurological issues.

PubMed

Multicenter comparison of antiplatelet treatment strategies for urgent/emergent neuroendovascular stenting.

2025

Interventional neuroradiology : journal of peritherapeutic neuroradiology, surgical procedures and related neurosciences

Holden D, May CC, Robbins BT, Cook AM, +18 more

Plain English
This study looked at how different antiplatelet treatments are used during emergency neuroendovascular stenting, which is a procedure to treat issues like strokes or aneurysms. Researchers analyzed data from 167 patients and found that those who received antiplatelet drugs before or during their procedure had fewer blood clots than those who received them afterwards (9% vs. 29%). This highlights that the timing and method of administering these medications can impact patient outcomes in urgent situations. Who this helps: Patients undergoing emergency neuroendovascular procedures.

PubMed

Intrathecal Nicardipine After Aneurysmal Subarachnoid Hemorrhage: A Scoping Review.

2025

Neurocritical care

Sweeney JF, Chen J, Darwish B, Holden D, Barnes E +1 more

Plain English
This study looked at the use of intrathecal nicardipine, a medication given directly into the spinal fluid, to treat complications like cerebral vasospasm in patients who have had a bleeding in the brain (known as aneurysmal subarachnoid hemorrhage). Researchers found 20 relevant studies involving 976 patients, indicating that while intrathecal nicardipine shows promise, the current research methods are varied and more standardized studies are needed to fully understand its benefits and risks. This matters because these complications remain serious and common after brain bleeding, and improving treatment options can significantly impact patient outcomes. Who this helps: This helps patients recovering from brain bleeding and their doctors.

PubMed

PET Imaging of Sphingosine-1-Phosphate Receptor 1 with [F]TZ4877 in Nonhuman Primates.

2025

Molecular imaging and biology

Gu J, Zheng MQ, Holden D, Fowles K, Qiu L +8 more

Plain English
This study investigated a new imaging agent called [F]TZ4877, which targets a specific receptor involved in immune responses in the brain, using nonhuman primates. The researchers found that [F]TZ4877 moves quickly in the brain but has low levels that make it hard to measure consistently; its distribution in the brain varied widely from 233 to 866 mL/cm. This is important because it highlights the potential for S1PR-targeting imaging in medical studies, suggesting that other related imaging agents might be better suited for future research in humans. Who this helps: Patients and doctors seeking better diagnostic tools for neuroimmune conditions.

PubMed

Expanding Application of Optical Coherence Tomography Beyond the Clinic: A Narrative Review.

2025

Diagnostics (Basel, Switzerland)

Nurjanah T, Patel M, Mar J, Holden D, Barrett SC +1 more

Plain English
This paper looks at how optical coherence tomography (OCT), a scanning technology used in eye exams, has improved over time. The authors found that advancements like artificial intelligence have made OCT faster and produce clearer images, while also making the devices smaller. This is important because it opens up new ways to use OCT outside of regular doctor's offices, especially during surgeries. Who this helps: Patients undergoing eye surgery and their doctors.

PubMed

A novel approach for modelingenzyme turnover in the presence of a suicide inhibitor drug: A proof-of-concept brain PET study on MAG lipase.

2025

Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism

Volpi T, Holden D, Gallezot JD, Nabulsi N, Lim K +11 more

Plain English
This research studied how a specific enzyme called MAG lipase behaves in the presence of a drug designed to shut it down, using advanced brain imaging techniques. The team found that the average turnover times for this enzyme ranged from about 3.9 to 6.1 hours, depending on certain conditions. This is important because understanding this enzyme's activity can improve drug development, particularly for treatments that involve similar drugs that inhibit other enzymes. Who this helps: This helps doctors and researchers working on new therapies for conditions related to enzyme dysfunction.

PubMed

Toward Imaging of the GABA Transporter Type 1 In Vivo: Quantitative Evaluation of 4 Novel PET Radiotracers in Nonhuman Primates.

2025

Journal of nuclear medicine : official publication, Society of Nuclear Medicine

Gravel P, Gu J, Wang C, Volpi T, Gallezot JD +10 more

Plain English
This study examined four new chemical compounds, called PET radiotracers, designed to visualize a brain protein related to an important neurotransmitter called GABA, which is involved in various brain disorders. Researchers tested these radiotracers on four monkeys and found that two, F-GATT-31 and F-GATT-44, worked best, with F-GATT-44 showing the most promising results for future human testing. This research is important because it could lead to better imaging techniques for understanding brain disorders linked to GABA dysfunction. Who this helps: Patients with neuropsychiatric disorders.

PubMed

The First CRISPR-Based Therapeutic (SL_1.52) for African Swine Fever Is Effective in Swine.

2025

Viruses

Verma N, O'Mahony A, Mohammad R, Keiser D, Mosman CW +9 more

Plain English
Researchers studied a new therapy using CRISPR technology to fight African swine fever, a deadly virus that can kill nearly all infected pigs within two weeks. They found that this CRISPR method significantly reduced the virus in infected pigs, helping them recover even after being given a lethal dose. This is important because it provides a potential treatment option for a disease that has devastated pig farms and economies. Who this helps: This helps pig farmers and the pork industry by reducing losses from African swine fever outbreaks.

PubMed

Multicenter Comparison of the Safety and Efficacy of Clopidogrel Versus Ticagrelor for Neuroendovascular Stents.

2024

Neurocritical care

May CC, Holden D, Robbins BT, Cook AM, +18 more

Plain English
This study compared the safety and effectiveness of two types of blood-thinning treatments after patients received stents in their brain vessels: one treatment used clopidogrel and the other used ticagrelor. Researchers found that both treatments led to the same rate of stent blockages at 3-6 months, with 8% blockage in both groups, and there were no significant differences in bleeding or death rates. This is important because it shows that either medication can be safely used for patients with neuroendovascular stents, helping doctors make better treatment choices. Who this helps: Patients who need neuroendovascular stenting.

PubMed

The Relationship Between Manifestation of Diabetes Insipidus and Estimated Glomerular Filtration Rate in Brain Death.

2024

Critical care medicine

Varelas PN, Kananeh M, Brady P, Holden D, Mehta C +4 more

Plain English
This study looked at the connection between kidney function and the occurrence of diabetes insipidus (DI) in patients who have been declared brain dead. Researchers found that out of 192 patients, 63.5% had DI, but this number dropped significantly with worsening kidney function: only 32% of those with moderate kidney damage had DI, and none with severe kidney damage did. This is important because it shows that patients with serious kidney problems may not show signs of DI, which can affect their treatment and care decisions. Who this helps: This finding helps doctors understand the relationship between kidney health and diabetes insipidus in brain-dead patients.

PubMed

Evaluation of a First PET Tracer Suitable for Imaging the Sigma-2 Receptor in the Brain of Nonhuman Primates.

2024

Molecular pharmaceutics

Alluri SR, Zheng M, Holden D, Zhang Y, Zhang L +6 more

Plain English
This study looked at a new type of imaging agent that targets the sigma-2 receptor in the brains of nonhuman primates. Researchers found that this new tracer can effectively enter the brain, which is important for studying brain-related conditions like Alzheimer's disease. This matters because better imaging agents could lead to improved diagnosis and treatment options for neurological disorders. Who this helps: This helps patients with neurological disorders and their doctors.

PubMed

A phase 2a open-label clinical trial to determine the effect of famciclovir on EBV activity as measured by EBV shedding in the saliva of patients with multiple sclerosis.

2024

Multiple sclerosis (Houndmills, Basingstoke, England)

Dobson R, Holden D, Vickaryous N, Bestwick J, George K +5 more

Plain English
This study looked at whether the drug famciclovir could reduce the amount of Epstein-Barr virus (EBV) found in saliva of people with multiple sclerosis (MS). Out of 30 participants, only 7 showed any EBV in their saliva while taking famciclovir, and there was no significant change in the amount of virus detected. Understanding how to manage EBV in MS is important because it may play a role in the disease's development. Who this helps: This helps patients with multiple sclerosis and their doctors.

PubMed

PET Imaging of Sphingosine-1-Phosphate Receptor 1 with [18F]TZ4877 in Nonhuman Primates.

2024

Research square

Gu J, Zheng MQ, Holden D, Fowles K, Qiu L +8 more

Plain English
This study focused on a specific brain receptor called sphingosine-1-phosphate receptor-1 (S1PR) and tested a new imaging tool called [F]TZ4877 in nonhuman primates. The researchers found that while [F]TZ4877 works quickly, it showed low levels in the brain, which makes it difficult to measure accurately. This finding is important because it suggests the need for better imaging tools for S1PR, which could help in understanding brain responses to various stimuli. Who this helps: This helps researchers and doctors working on brain-related conditions.

PubMed

Neurofilaments in neurologic disease.

2024

Advances in clinical chemistry

Mousele C, Holden D, Gnanapavan S

Plain English
Researchers studied neurofilaments (NFs), which are important proteins found in nerve cells and can indicate when these cells are damaged. They found that levels of neurofilaments in the blood and cerebrospinal fluid rise when there is neuroaxonal damage, which is a common issue in various neurological diseases, and this can help monitor disease progression and the effectiveness of treatments. This matters because accurately tracking neurofilament levels could lead to better management of conditions that cause permanent disability. Who this helps: Patients with neurological diseases and their doctors.

PubMed

Thoracic Outlet Syndrome.

2024

Current sports medicine reports

Capodosal G, Holden D, Maloy W, Schroeder JD

Plain English
This study looked at thoracic outlet syndrome, a condition where nerves and blood vessels in the upper chest are compressed, leading to pain and other symptoms. Researchers found that while many cases can be treated without surgery, some patients still suffer severe symptoms and may need surgical help; treatments like injections of anesthetics or botulinum toxin show promise in both diagnosing and treating the condition. Understanding this syndrome better is important for improving diagnosis and treatment options. Who this helps: This benefits patients suffering from thoracic outlet syndrome, as well as their doctors.

PubMed

Early Acute Kidney Injury in Adult Patients With Burns in Australia & New Zealand.

2024

The Journal of surgical research

Sharp S, Tracy L, Singer Y, Schnekenburger M, Burrell A +3 more

Plain English
This study examined adult patients in Australia and New Zealand with significant burns (covering at least 10% of their body) to understand how many developed early acute kidney injury (AKI) within the first 72 hours after admission. Out of 1,297 patients, 83 (or 6.4%) developed early AKI, and those patients were generally older and had more severe burns. Importantly, early AKI was linked to a higher risk of dying in the hospital and a greater need for mechanical ventilation, underscoring the importance of early monitoring and treatment to prevent kidney problems after severe burn injuries. Who this helps: Patients with severe burns and their healthcare providers.

PubMed

Understanding the effectiveness and quality of virtual cancer multidisciplinary team meetings (MDTMs): a systematic scoping review.

2024

BMC health services research

Onifade A, Quaife SL, Holden D, Chung D, Birchall M +3 more

Plain English
This study looked at how well virtual meetings for cancer care teams work compared to traditional in-person meetings. Researchers reviewed 93 studies and found that virtual meetings were better or at least as good as face-to-face ones in most cases, with six studies showing clear advantages, such as improved treatment recommendations and attendance rates. The findings highlight the importance of reliable internet and proper training for team leaders to ensure these virtual meetings are effective and safe for patients. Who this helps: This benefits patients and healthcare teams involved in cancer treatment.

PubMed

Cladribine tablets in relapsing-remitting multiple sclerosis preferentially target B-cells.

2024

Clinical immunology (Orlando, Fla.)

Ammoscato F, Wafa M, Skonieczna J, Bestwick J, Monero R +11 more

Plain English
This study looked at how Cladribine tablets (CladT) affect immune cells in patients with relapsing-remitting multiple sclerosis (RRMS) over 96 weeks. It found that CladT significantly reduced the levels of certain immune cells, specifically memory B cells and some antibody markers; for example, the free light chain (FLC) index dropped from 164.5 to 64.4 and the IgG index from 1.1 to 0.8 at 96 weeks. These findings are important because they show that CladT effectively targets and reduces harmful B cells, which play a key role in the disease's activity, potentially leading to better management of MS symptoms. Who this helps: This helps patients with relapsing-remitting multiple sclerosis.

PubMed

The association between out of hours burn centre admission and in-hospital outcomes in patients with severe burns.

2023

Burns : journal of the International Society for Burn Injuries

Singer Y, Gabbe BJ, Cleland H, Holden D, Schnekenburger M +1 more

Plain English
This study looked at patients with severe burns who were admitted to burn centers in Australia and New Zealand, comparing those who came in during regular business hours to those who arrived at night or on weekends. Out of 623 patients studied, 69.2% came in out of hours, with a median burn size of 30% of their body and 32% having inhalation injuries. The results showed no significant differences in death rates or complications between the two groups, suggesting that current care practices are effective regardless of admission time. Who this helps: This benefits patients with severe burns and healthcare providers in burn centers.

PubMed

A TaqMan Assay for the Detection and Monitoring of Potentially Invasive Lasiocampids, With Particular Attention to the Siberian Silk Moth, Dendrolimus sibiricus (Lepidoptera: Lasiocampidae).

2023

Journal of insect science (Online)

Stewart D, Djoumad A, Holden D, Kimoto T, Capron A +5 more

Plain English
This research studied a new way to detect the Siberian silk moth and related pests, which could harm North America's forests. The researchers developed two tests that can identify these insects' DNA, specifically focusing on the Siberian silk moth and different related species, helping to pinpoint them accurately. These tests are important because they allow for quicker and more precise detection of potentially invasive pests, which can help prevent damage to trees and ecosystems. Who this helps: This helps forest managers and regulatory agencies monitor and control invasive species effectively.

PubMed

Preclinical evaluation of a brain penetrant PARP PET imaging probe in rat glioblastoma and nonhuman primates.

2023

European journal of nuclear medicine and molecular imaging

Chen B, Ojha DP, Toyonaga T, Tong J, Pracitto R +13 more

Plain English
This study focused on a new imaging probe, called [C]PyBic, designed to track a molecule called PARP in the brains of rats with glioblastoma and in nonhuman primates. Researchers found that [C]PyBic effectively targets PARP in glioblastoma tumors, with 74% of the tracer binding blocked by a substance that inhibits PARP, indicating its effectiveness. This imaging method could help doctors better understand tumor biology and customize treatments for patients with brain tumors, which is crucial for improving outcomes in cancer care. Who this helps: Patients with glioblastoma and their healthcare providers.

PubMed

Changing from face-to-face to virtual meetings due to the COVID-19 pandemic: protocol for a mixed-methods study exploring the impact on cancer multidisciplinary team (MDT) meetings.

2023

BMJ open

McInnerney D, Chung D, Mughal M, Onifade A, Holden D +4 more

Plain English
The study looked at how switching from in-person meetings to virtual meetings during the COVID-19 pandemic affected decision-making in cancer care teams in the UK. It involved interviews with 40 team members, a national survey, and observations of at least six virtual meetings, aiming to understand the challenges and successes of this transition. The findings will help improve the effectiveness of virtual meetings for cancer care, which is important as these teams handle increasingly complex cases. Who this helps: This helps cancer patients and healthcare teams involved in their care.

PubMed

In Vivo Imaging and Kinetic Modeling of Novel Glycogen Synthase Kinase-3 Radiotracers [C]OCM-44 and [F]OCM-50 in Non-Human Primates.

2023

Pharmaceuticals (Basel, Switzerland)

Smart K, Zheng MQ, Holden D, Felchner Z, Zhang L +5 more

Plain English
This research focused on two new imaging agents, [C]OCM-44 and [F]OCM-50, designed to visualize a protein called GSK-3 in the brains of primates. The study found that both agents were effective in reaching and spreading throughout the brain, with [C]OCM-44 showing a 1.4-2.9 mL/cm volume of distribution across various brain regions, while [F]OCM-50 had a volume value of 0.39-0.87 mL/cmin. These findings are important because they suggest that these imaging agents could be useful for studying brain disorders related to GSK-3, helping scientists understand diseases like Alzheimer's and depression better. Who this helps: This research benefits patients with neurodegenerative and psychiatric disorders.

PubMed

Long-term scarring outcomes and safety of patients treated with NovoSorbBiodegradable Temporizing Matrix (BTM): An observational cohort study.

2023

JPRAS open

Lo CH, Wagstaff MJD, Barker TM, Damkat-Thomas L, Salerno S +5 more

Plain English
This study looked at the long-term effects of a new medical device called NovoSorbBiodegradable Temporizing Matrix (BTM) used for skin repair in patients who had large skin areas treated. Out of 55 patients, 15 completed the study and reported their scars as looking good, with average quality scores of about 3.6 (on a scale where higher numbers mean better quality). The results showed that BTM is safe to use and does not cause any long-term problems. Who this helps: This helps patients who need skin reconstruction after injuries or surgeries.

PubMed

Surviving Sepsis After Burn Campaign.

2023

Burns : journal of the International Society for Burn Injuries

Greenhalgh DG, Hill DM, Burmeister DM, Gus EI, Cleland H +44 more

Plain English
The Surviving Sepsis After Burn Campaign was created to help improve the care of patients with sepsis who have also suffered burn injuries, as sepsis is a leading cause of death in these cases. An international group of burn experts reviewed existing research and developed 60 statements to guide the treatment of sepsis in burn patients, aiming for a strong agreement among professionals in the field. This is important because better treatment guidelines can lead to more lives saved and improved outcomes for a vulnerable patient group. Who this helps: This helps burn patients and healthcare providers treating them.

PubMed

Chronic GCPII (glutamate-carboxypeptidase-II) inhibition reduces pT217Tau levels in the entorhinal and dorsolateral prefrontal cortices of aged macaques.

2023

Alzheimer's & dementia (New York, N. Y.)

Bathla S, Datta D, Liang F, Barthelemy N, Wiseman R +13 more

Plain English
This study looked at how a specific drug, called 2-MPPA, affects levels of a harmful protein (pT217Tau) related to Alzheimer's disease in older macaques. The researchers found that after treatment with 2-MPPA, the monkeys had significantly lower levels of this protein in specific brain areas, which is a positive sign because high levels are linked to Alzheimer's. This is important because it shows a new way to potentially reduce early signs of Alzheimer’s by targeting inflammation in the brain. Who this helps: This research benefits patients at risk of Alzheimer's and the doctors treating them.

PubMed

Inappropriate dosing of direct oral anticoagulants: findings from a clinical vignette study and physician survey.

2023

Journal of market access & health policy

Fuat A, Ako E, Hargroves D, Holden D, Caleyachetty A +6 more

Plain English
This study looked at how often doctors prescribe lower-than-recommended doses of direct oral anticoagulants (DOACs) like apixaban and rivaroxaban for patients with atrial fibrillation, a heart condition that increases stroke risk. It found that 73% of the doctors surveyed incorrectly underdosed these medications at least once, often due to patient factors like having a history of major bleeding or severe frailty. This matters because appropriate dosing is crucial for preventing strokes while minimizing bleeding risks, emphasizing the need for better training for all prescribers on these medications. Who this helps: Patients with atrial fibrillation.

PubMed

A metabolically stable PET tracer for imaging synaptic vesicle protein 2A: synthesis and preclinical characterization of [F]SDM-16.

2022

European journal of nuclear medicine and molecular imaging

Zheng C, Holden D, Zheng MQ, Pracitto R, Wilcox KC +10 more

Plain English
Researchers developed a new imaging agent called [F]SDM-16 that can help visualize and measure a protein called SV2A in the brain. This new agent has a strong binding ability to the SV2A protein, achieving a binding strength of 0.9 nanomolar, and is more stable in the body compared to other agents, with 69% remaining unchanged in the bloodstream. This advancement allows for clearer brain scans and could lead to better understanding and monitoring of brain conditions. Who this helps: This benefits patients with neurological disorders by improving diagnosis and monitoring.

PubMed

Factors contributing to CSF NfL reduction over time in those starting treatment for multiple sclerosis: An observational study.

2022

Multiple sclerosis and related disorders

Smets I, Holden D, Bianchi L, Ammoscato F, Allen-Philbey K +8 more

Plain English
This study looked at how certain factors influence the reduction of a brain-related protein (NfL) in patients with multiple sclerosis (MS) after they start treatment. Researchers analyzed data from 61 patients, finding that younger age, lower levels of disability, and having relapsing MS were linked to greater decreases in NfL levels; for instance, a 30-year-old had an average NfL drop of 451 pg/mL compared to just 228 pg/mL for a 60-year-old after treatment. Understanding these factors is important because it helps identify which patients are likely to benefit the most from treatment, leading to better management of MS. Who this helps: This helps patients with multiple sclerosis and their doctors by providing insights into treatment effectiveness.

PubMed

The effects of dimethyl fumarate and fingolimod on T-cell lymphocyte proliferation in patients with multiple sclerosis.

2022

Irish journal of medical science

Reynolds A, Gaughan M, Holden D, Redenbaugh V, Dunne J +2 more

Plain English
This study looked at how two treatments for multiple sclerosis (MS)—dimethyl fumarate (DMF) and fingolimod (FTY)—affect the growth of certain immune cells called T-cells in patients. It found that patients taking fingolimod experienced a significant decrease in T-cell growth, with reductions of 51% and 40% compared to their levels before treatment, while those on dimethyl fumarate showed no major differences in T-cell growth. This is important because it helps us understand how these medications work and their potential effects on immune function, which could impact infection risk. Who this helps: This research benefits patients with multiple sclerosis and their doctors by providing insight into how these treatments affect their immune systems.

PubMed

Characterization in nonhuman primates of (R)-[F]OF-Me-NB1 and (S)-[F]OF-Me-NB1 for imaging the GluN2B subunits of the NMDA receptor.

2022

European journal of nuclear medicine and molecular imaging

Zheng M, Ahmed H, Smart K, Xu Y, Holden D +7 more

Plain English
This study looked at two compounds, (R)-[F]OF-Me-NB1 and (S)-[F]OF-Me-NB1, to see how well they can image a specific part of the brain involved in various neurological diseases. The researchers found that (R)-[F]OF-Me-NB1 was more effective and had faster uptake in the brain, with a binding potential averaging around 0.5 in most areas, indicating good specificity for imaging. This is important because it may help with early detection and treatment monitoring of conditions like Alzheimer's and Parkinson's disease. Who this helps: Patients with neurological disorders and their doctors.

PubMed

Imaging the effect of ketamine on synaptic density (SV2A) in the living brain.

2022

Molecular psychiatry

Holmes SE, Finnema SJ, Naganawa M, DellaGioia N, Holden D +14 more

Plain English
This study looked at how ketamine affects the density of nerve connections in the brain, particularly in people with severe depression or PTSD, using a special brain imaging technique. It found that while there was no overall change in synaptic density 24 hours after ketamine treatment, patients with lower connection density at the start saw an increase, which was linked to a greater improvement in their depression symptoms but also more dissociative feelings. This research is important because it hints that ketamine might help rebuild brain connections in specific patients, paving the way for new treatments. Who this helps: Patients with major depression and PTSD.

PubMed

Comparison of three novel radiotracers for GluN2B-containing NMDA receptors in non-human primates:-[C]NR2B-Me,-[F]of-Me-NB1, and-[F]of-NB1.

2022

Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism

Smart K, Zheng MQ, Ahmed H, Fang H, Xu Y +12 more

Plain English
This study looked at three new imaging agents, called radiotracers, that target a specific part of brain receptors linked to mental health disorders, using non-human primates. The researchers found that all three agents were effectively taken up by the brain, but one, [F]OF-NB1, showed the best potential for use in human imaging because of its favorable distribution properties. Understanding how these agents work is important for developing better ways to study and treat neuropsychiatric conditions. Who this helps: This helps patients with neuropsychiatric disorders by advancing the development of targeted imaging techniques.

PubMed

Severe COVID-19 is characterised by inflammation and immature myeloid cells early in disease progression.

2022

Heliyon

Townsend L, Dyer AH, Naughton A, Imangaliyev S, Dunne J +25 more

Plain English
The study looked at patients with COVID-19 to understand what signs indicate that someone might develop severe illness. Researchers found that four key markers—high CRP and IL-6 levels, and changes in cell expression—are strongly linked to severe cases, achieving a high prediction accuracy of 92.5%. These findings can help identify patients at risk of severe COVID-19 early on, which can lead to quicker treatment. Who this helps: This helps patients at risk of severe COVID-19 and their doctors.

PubMed

The relationship of cerebrospinal fluid neurofilament levels with magnetic resonance imaging lesion location and disease activity in multiple sclerosis.

2022

European journal of neurology

Adams A, Tilden W, Bestwick J, Holden D, Bianchi L +3 more

Plain English
This study looked at how levels of a protein called neurofilament light chain (NfL) in cerebrospinal fluid relate to brain lesion locations and disease activity in people with multiple sclerosis (MS). Researchers found that higher NfL levels were linked to specific types of lesions in MRI scans, especially in the infratentorial area (where the brain meets the spinal cord), showing a strong correlation of 0.71. This is important because it helps understand the disease's progression and could improve monitoring and treatment strategies for MS patients. Who this helps: This helps patients and doctors by providing clearer insights into MS activity and progression.

PubMed

Reversal of synapse loss in Alzheimer mouse models by targeting mGluR5 to prevent synaptic tagging by C1Q.

2022

Science translational medicine

Spurrier J, Nicholson L, Fang XT, Stoner AJ, Toyonaga T +17 more

Plain English
This study examined how a drug called BMS-984923 can prevent synapse loss in mouse models of Alzheimer's disease. The researchers found that this treatment fully restored synapse density and reduced harmful protein buildup in the brain, even after the drug was no longer in the system. This is important because it shows a potential way to protect brain connections that are damaged in Alzheimer's, which could lead to better cognitive function. Who this helps: This helps patients with Alzheimer's disease and their doctors by providing a potential new treatment approach.

PubMed

Differential Effects of Dietary versus Exercise Intervention on Intrahepatic MAIT Cells and Histological Features of NAFLD.

2022

Nutrients

Naimimohasses S, O'Gorman P, Wright C, Ni Fhloinn D, Holden D +11 more

Plain English
This study looked at how changing diet or exercise affects certain immune cells (MAIT cells) and liver health in patients with non-alcoholic fatty liver disease (NAFLD). After 12 weeks, those who changed their diet saw a drop in markers of cell activation and improvements in liver fat content, while those who exercised showed higher levels of a marker that indicates cell death and a decrease in the number of MAIT cells in the liver, along with better liver tissue health. These findings suggest that both diet and exercise can lead to important health improvements for people with NAFLD. Who this helps: Patients with non-alcoholic fatty liver disease.

PubMed

Fielding vaccines-challenges and opportunities in outbreaks, complex emergencies, and mass gatherings.

2022

Human vaccines & immunotherapeutics

Fischer LJ, Rains RC, Brett-Major SM, Senga M, Holden D +1 more

Plain English
This paper studied how to effectively distribute vaccines during emergencies like disease outbreaks and large gatherings, especially in light of the COVID-19 pandemic. It found that understanding vaccine processes and challenges unique to these situations is essential for increasing vaccine access and acceptance. This matters because improving vaccine distribution can protect communities and enhance public health, especially during critical times. Who this helps: This helps patients and healthcare providers in emergency situations.

PubMed

Effect of teriflunomide on Epstein-Barr virus shedding in relapsing-remitting multiple sclerosis patients: Outcomes from a real-world pilot cohort study.

2022

Multiple sclerosis and related disorders

Gold J, Holden D, Parratt J, Yiannikas C, Ahmad R +2 more

Plain English
This study looked at how the drug teriflunomide affects the presence of the Epstein-Barr virus (EBV) in the saliva of patients with relapsing-remitting multiple sclerosis (MS). Researchers found that fewer patients taking teriflunomide had detectable EBV in their saliva compared to other groups, with significant results showing a reduction in virus copies. These findings are important because they suggest that teriflunomide may help lower EBV shedding, which can be beneficial for managing MS. Who this helps: Patients with relapsing-remitting multiple sclerosis.

PubMed

Assessment of test-retest reproducibility of [F]SynVesT-1, a novel radiotracer for PET imaging of synaptic vesicle glycoprotein 2A.

2021

European journal of nuclear medicine and molecular imaging

Li S, Naganawa M, Pracitto R, Najafzadeh S, Holden D +8 more

Plain English
This study looked at a new imaging tool called [F]SynVesT-1, designed to help visualize brain functions related to synaptic health, which can be affected by various brain disorders. Researchers found that this tool showed strong performance in both monkeys and healthy humans, with the best imaging results indicating up to 10 times higher uptake in certain brain regions compared to previous tools, and it maintained excellent consistency across tests, with less than 9% variation in measurements. This is significant because it means [F]SynVesT-1 could provide reliable insights into brain health and help in diagnosing and managing brain disorders. Who this helps: Patients with brain disorders and their doctors.

PubMed

Opioid Overdose Risk in Patients Returning to the Emergency Department for Pain.

2021

Pain medicine (Malden, Mass.)

Sheikh S, Booth-Norse A, Holden D, Henson M, Dodd C +5 more

Plain English
This study looked at the risk of opioid overdose in patients who returned to the emergency department for pain within 30 days and were sent home with opioid prescriptions. Out of 389 patients, 17% received opioid prescriptions, and 25% of these patients were found to be at high risk for overdose. The findings indicate that the CIP-RIOSORD tool can help identify patients who are more likely to overdose, which is important for managing their treatment safely. Who this helps: This helps patients who are prescribed opioids, particularly those at greater risk of overdose.

PubMed

Use of intravenous cangrelor and stenting in acute ischemic stroke interventions: a new single center analysis and pooled-analysis of current studies.

2021

Interventional neuroradiology : journal of peritherapeutic neuroradiology, surgical procedures and related neurosciences

Paul AR, Entezami P, Holden D, Field N, Dalfino J +1 more

Plain English
This study looked at the use of a new medication called intravenous cangrelor during emergency procedures for treating strokes caused by blood clots. The researchers combined data from their own center with previous studies, finding that out of 129 patients treated, only 6.2% experienced serious bleeding in the brain, which is a low rate. This is important because it suggests that cangrelor can safely be used to help prevent complications during stroke interventions. Who this helps: This helps patients who suffer from acute ischemic strokes and the doctors treating them.

PubMed

Lipid and lipoprotein predictors of functional outcomes and long-term mortality after surgical sepsis.

2021

Annals of intensive care

Guirgis FW, Leeuwenburgh C, Moldawer L, Ghita G, Black LP +6 more

Plain English
This study looked at how certain cholesterol and fat-related markers in the blood could predict patients' physical recovery and survival after experiencing sepsis, a serious infection-related condition. The researchers analyzed 104 patients and found that those who struggled with their recovery had lower levels of a particular type of cholesterol (known as HDL-C) and higher levels of myeloperoxidase (MPO), while those who didn't survive after a year also showed similar trends. Ultimately, the study concluded that while cholesterol levels weren't good predictors of recovery, factors like the presence of other health issues, low levels of a protein called ApoA-I, and how long patients needed medications to support their blood pressure were important for predicting survival after sepsis. Who this helps: This research benefits doctors and healthcare providers by identifying key factors to monitor for better patient management after sepsis.

PubMed

Longitudinal Analysis of COVID-19 Patients Shows Age-Associated T Cell Changes Independent of Ongoing Ill-Health.

2021

Frontiers in immunology

Townsend L, Dyer AH, Naughton A, Kiersey R, Holden D +13 more

Plain English
This study looked at changes in immune cells in COVID-19 patients after they recovered from their initial infection. Researchers found that older patients (over 60) had certain immune cells that were significantly altered even 101 days after infection. Specifically, they noted an increase in some activated immune cells and a decrease in others, indicating ongoing immune system changes that are not directly linked to the patients' continuing symptoms like fatigue and poor exercise tolerance. Who this helps: This research benefits doctors treating COVID-19 patients, especially older adults, by providing insight into the long-term effects of the virus on the immune system.

PubMed

The aerodynamics of flying snake airfoils in tandem configuration.

2021

The Journal of experimental biology

Jafari F, Holden D, LaFoy R, Vlachos PP, Socha JJ

Plain English
Researchers studied how flying snakes glide by examining the shape of their bodies during flight. They used detailed models to simulate the snakes' body position and found that when two snakes glide closely together, they can produce more lift—up to 50% more in certain configurations—by influencing the air around them. This matters because understanding these dynamics can improve designs for aerial vehicles and enhance our knowledge of animal locomotion. Who this helps: This helps engineers and designers of flying drones and other aerial technology.

PubMed

Circulating Tumour Cell Numbers Correlate with Platelet Count and Circulating Lymphocyte Subsets in Men with Advanced Prostate Cancer: Data from the ExPeCT Clinical Trial (CTRIAL-IE 15-21).

2021

Cancers

Hayes B, Brady L, Sheill G, Baird AM, Guinan E +24 more

Plain English
This study investigated the relationship between circulating tumor cells (CTCs), platelet counts, and certain immune cells in men with advanced prostate cancer. Researchers found that higher numbers of CTCs were linked to higher platelet counts and increased levels of specific immune cells. For example, there was a strong correlation with natural killer (NK) cells and lymphocytes, showing that these elements interact as the cancer spreads. Who this helps: This helps patients with advanced prostate cancer by identifying potential treatment targets.

PubMed

Frequent Co-Authors

Richard E Carson Yiyun Huang Ming-Qiang Zheng Zachary Felchner Krista Fowles Li Zhang Jim Ropchan Sharmilee Gnanapavan Michael Kapinos Nabeel Nabulsi

Physician data sourced from the NPPES NPI Registry . Publication data from PubMed . Plain-English summaries generated by AI. Not medical advice.