Citations

Mayo Clinic

Clear

15417 citation(s) found for "Völk, Michael".

Age and Procedural Timing for Asymptomatic Severe Aortic Stenosis: Analysis From the EARLY TAVR Trial
Goel, Kashish , Lindman, Brian R. , Schwartz, Allan, Cohen, DE, Giustino, Gennaro, Oldemeyer, J. Bradley , Strote, Justin, Babaliaros, Vasilis, Devireddy, Chandan , Fischbein, Michael P. , Fearon, W F, Daniels, David, Spies, Christian, Shah, Pinak , Dahle, Thom, Apostolou, Dimitrios , Makkar, R, Davidson, Charles J. , Sheth, Tej, Sorajja, Paul , DeVries, James T. , Southard, J.H., Depta, Jeremiah P. , Pop, Andrei, Rinaldi, Michael J., Badr, Salem , Russo, Mark J., Wang, Yizhuo , Leon, Martin B. , Généreux, Philippe , Cohen, David J. , Schwartz, Allan , Cohen, David Jonathan , Babaliaros, Vasilis , Devireddy, Chandan M , Fearon, William F , Chhatriwalla, Adnan K , Suradi, Hussam , Shah, Pinak , Szerlip, Molly , Dahle, Thom , Apostolou, Dimitrios , Makkar, Raj , Davidson, Charles J. , Sorajja, Paul , DeVries, James T , Southard, Jeffrey , Depta, Jeremiah P , Badr, Salem , Guerrero, Mayra E , McCabe, James M , Pibarot, Phillippe , Wang, Yizhuo , Leon, Martin B. , Généreux, Philippe , Lindman, Brian R , Giustino, Gennaro , Babaliaros, Vasilis , Fearon, William F. , Makkar, Raj , Sheth, Tej , Rinaldi, Michael , Williams, Mathew , Russo, Mark J., Guerrero, Mayra

Circulation: Cardiovascular Interventions | June 3, 2026 | Volume: 19 | Issue: 8 | Pages: No page available

10.1161/circinterventions.125.016370 | PMID 42233211 Get It

BACKGROUND: The EARLY TAVR trial (Evaluation of TAVR Compared to Surveillance for Patients with Asymptomatic Severe Aortic Stenosis) demonstrated that early transcatheter aortic valve replacement (TAVR) was superior to clinical surveillance (CS) in asymptomatic severe aortic stenosis. The relative impact of early TAVR versus CS strategy by age is unknown. METHODS: The study population of the EARLY TAVR trial was stratified into 4 age groups: 65 to 69 years (n=141), 70 to 74 years (n=263), 75 to 79 years (n=250), and ≥80 years (n=247). Associations between age and the trial primary end point of death, stroke, or unplanned cardiovascular hospitalization; the composite end point of death, stroke, or heart failure hospitalization; and its individual components were examined. Interaction tests evaluated whether the treatment effect of early TAVR versus CS differed by age. RESULTS: No interaction was detected between age and the treatment effect of early TAVR versus CS for the composites or individual outcomes. We observed lower stroke rates with early TAVR compared with CS in the youngest (65–69 years, absolute risk reduction, 13%; P =0.008) and oldest (≥80 years; absolute risk reduction, 12.3%; P =0.029) age groups. The absolute difference in heart failure hospitalization rates between the early TAVR and CS arms at 2 years was greatest in the oldest patients (≥80 years, 9.1%; 75–79 years, 5.9%; 70–74 years, 5.1%; 65–69 years, 4.4%). In the CS group, time to conversion to AVR was similar across all age groups (median, 11 months; P =0.73). Approximately one-third of younger patients (65–69 years) in the CS arm presented with acute valve syndrome at the time of conversion, the frequency of which tended to increase with age ( P =0.06). CONCLUSIONS: In the EARLY TAVR trial, the relative benefit of early TAVR over CS was consistent among all age groups. The greatest absolute reduction in stroke rate with early TAVR compared with CS appeared in the youngest and oldest groups, whereas reduction in heart failure hospitalization was most pronounced in the oldest patients. These data suggest that early TAVR should be considered in all age groups above 65 years. REGISTRATION: URL: https://www.clinicaltrials.gov ; Unique identifier: NCT03042104.
Virus-specific CD8 T cells rapidly populate and persist in skull bone marrow after brain infection
Johnson, Aaron , Hassani, Asma, Jin, Fang, Forston, Michael D. , Hadjimirzaei, Armeta, Lewis, Cody, Owens, Carley, Thelwell, Javonte, Maynes, Mark , Tian, Zichen, Hansen, Michael, Hassani, Asma , Hassani, Asma , Forston, Michael D , Lewis, Cody L, Thelwell, Javonte S. , Jin, Fang, Thelwell, Javonte , Seady, Marina , Maynes, Mark A , Ayasoufi, Katayoun

No container title available | June 3, 2026 | Volume: No volume available | Issue: No issue available | Pages: No page available

10.21203/rs.3.rs-9890268/v1 | PMID 42281991 Get It

Abstract Skull bone marrow (BM) is a recently identified site for immune activation responsive to CNS insults. The extent to which adaptive immunity is generated through skull BM is poorly understood. In this study, we evaluated how skull BM supports the early expansion of antiviral CD8 T cells during acute neurotropic virus infection. Virus antigen-specific CD8 T cells were rapidly identified in skull BM at a rate comparable to lymphoid compartments during acute Theiler’s murine encephalomyelitis viral (TMEV) infection. We therefore employed MHC class I conditional knockout mice and demonstrated the necessity of CD11c+ antigen-presenting cells (APCs) for the generation of various subsets of TMEV-specific CD8 T cells in skull BM. Importantly, the early expansion of skull BM-derived antiviral T cells was impeded by FTY720 treatment and restored upon shared circulation with a mouse exhibiting intact antigen presentation by CD11c+ APCs. Additionally, TMEV-specific CD8 T cells were retained in skull BM during both chronic CNS infection and long after infection has been resolved. Overall, we determined that skull BM responds to acute neurotropic viral infection through the rapid recruitment of virus-specific CD8 T cells primed in the periphery before serving as a reservoir for immunologic memory.
Menin Inhibition in Acute Myeloid Leukemia: Rewiring Leukemic Transcriptional Networks
Tarhini, Ali , Romanos, Michael, Al‐Kali, Aref , Saliba, Antoine N. , Saliba, Antoine N. , Al-Kali, Aref , Saliba, Antoine N , Saliba, Antoine N , Tarhini, Ali , Romanos, Michael

International Journal of Molecular Sciences | June 2, 2026 | Volume: 27 | Issue: 11 | Pages: 4886

10.3390/ijms27114886 | PMID 42278415 Get It

Among the transcriptional dependencies that sustain leukemic identity in acute myeloid leukemia (AML), the menin–KMT2A chromatin complex has emerged as a central regulatory node. The scaffold protein menin, encoded by MEN1, facilitates transcriptional activation of HOX and MEIS family genes during normal hematopoietic development. In AML, this physiologic and developmentally regulated role is co-opted to sustain constitutive HOX/MEIS-driven programs that block differentiation and maintain leukemic potential. Although dependency on menin is most clearly established in KMT2A-rearranged and NPM1-mutated AML, this vulnerability appears to arise from a shared transcriptional state characterized by persistent HOX activation rather than from any single genetic alteration. Pharmacologic disruption of the menin-KMT2A interaction collapses stemness-associated transcriptional networks, promotes myeloid differentiation, and attenuates leukemic self-renewal. Clinical activity observed with menin inhibitors provides translational validation of this dependency and establishes menin inhibition as a differentiation-based therapeutic strategy. In this review, we examine the molecular basis of menin-dependent transcriptional regulation in AML and its implications for therapeutic targeting with menin inhibitors and resistance to therapy.
High Versus Low Radiographic Burden Odontogenic Sinusitis: Culture, Histopathology, and Patient‐Reported Outcomes
Ebbert, Landon E. , Kumar, Nitish , Lal, Devyani , Miglani, Amar , Marino, Michael J. , Kumar, Nitish , Lal, Devyani

Laryngoscope Investigative Otolaryngology | June 2, 2026 | Volume: 11 | Issue: 3 | Pages: No page available

10.1002/lio2.70456 | PMID 42257217 Get It

ABSTRACT Objective Odontogenic sinusitis (ODS) ranges from isolated maxillary disease to pansinusitis. We compared patient characteristics, microbial and histopathological features, and symptom outcomes following endoscopic sinus surgery (ESS) between low and high radiographic burden ODS patients. Methods ODS patients undergoing ESS between 01/2013 and 08/2024 were reviewed. Preoperative CT scans were used to classify patients into high radiographic burden [with ostiomeatal complex (OMC) opacification] and low radiographic burden ODS [clear OMC]. Demographic, microbiological, and histopathological data were analyzed. Symptom improvement was assessed using pre‐ and post‐operative SNOT‐22 scores. Results Eighty‐seven patients were identified (high CT burden: 70; low CT burden: 17). High CT burden ODS was associated with older age ( p = 0.014), higher overall degree of inflammation ( p = 0.002), hyperplastic/papillary epithelial changes ( p = 0.034), and neutrophil infiltration ( p = 0.003). Culture of classic ODS bacteria ( Fusobacterium spp., Prevotella spp., mixed anaerobes, Streptococcus anginosus group) did not correlate with CT disease burden ( p = 0.110). No independent predictors of radiographic high‐burden disease were identified. Post‐ESS, significant reduction in total and rhinologic SNOT‐22 scores was only observed in the radiographic high‐burden ODS group ( n = 39; median reductions: 23 and 12 respectively; p < 0.001). Conclusion High radiographic burden was associated with older patients and with tissue inflammation level. Classic ODS bacterial profile did not associate with increased CT burden. While these findings remain exploratory, the observed differences in inflammatory and symptomatic profiles between groups suggest that radiographic burden warrants further study as a potential factor in ODS clinical decision‐making. Level of Evidence 3.
Spinal cord imaging for multiple sclerosis: Advances, priorities, and opportunities
Laule, Cornelia , Cohen-Adad, Julien, Witt, Atlee , Luca, Gabriele C. De, Granziera, Cristina , Keegan, B. Mark , Kerbrat, Anne , Klawiter, Eric C, Kolind, Shannon , O’Grady, Kristin P. , Oh, Jiwon, Sivakolundu, Dinesh K. , Smith, Seth A, Vavasour, Irene M, Mainero, Caterina , Alonso-Ortiz, Eva, Krieger, Stephen , Li, David , Shinohara, Russell T, Henry, Roland G, Cooperative, North American Imaging in Multiple Sclerosis (NAIMS), Witt, Atlee A , De Luca, Gabriele C , Bagnato, Francesca R. , Gauthier, Susan A , Bakshi, Rohit , Beck, Erin S , Krieger, Stephen , Keegan, B Mark , Kollind, Shannon H , Granziera, Cristina , O'Grady, Kristin P , Cohen-Adad, Julien , DeLuca, Gabriele C. , Kerbrat, Anne , Klawiter, Eric C. , Oh, Jiwon , Schilling, Kurt G. , Smith, Seth A. , Tozlu, Ceren , Vavasour, Irene M. , Alonso‐Ortiz, Eva , Brier, Matthew R. , Hemond, Christopher C , Li, David K.B. , Shinohara, Russell Taki , Henry, Roland G.

Multiple Sclerosis Journal | June 1, 2026 | Volume: No volume available | Issue: No issue available | Pages: No page available

10.1177/13524585261444600 | PMID 42224274 Get It

The spinal cord plays a central role in the pathophysiology and clinical manifestations of multiple sclerosis (MS), yet remains under-studied compared with the brain. This review summarizes key insights from the 2025 North American Imaging in MS Spinal Cord Imaging Workshop, highlighting recent advances, ongoing challenges, and future opportunities in MS spinal cord imaging. We review pathological studies and outline the clinical relevance of spinal cord lesions and atrophy for diagnosis, prognosis, and disease monitoring, highlighting emerging biomarkers of progression independent of relapse activity. Correlations between magnetic resonance imaging, histopathology, and clinical outcomes support the validation and translational potential of advanced spinal cord imaging techniques. Finally, we discuss spinal cord–specific processing pipelines and reproducibility challenges. Collectively, these insights underscore the need to integrate advanced and quantitative spinal cord imaging into clinical trials, research studies, and—when feasible—clinical care, to fully capture the extent of MS pathology, and ultimately improve patient outcomes.
Darier disease—A review highlighting new insights from the Darier Disease International Task Force
Labbouz, Sofia , Xiong, Grace , Murrell, Dedee Frances, Mueller, Simon M. , Mohandesi, Nessa Aghazadeh, Aldhaheri, Ahmed Salem, Asayag, Nissim, Baselga, Eulalia, Nadler, Chen , Chu, Chia‐Yu , Edminister, John R. , Guenova, Emmanuella, Gönülal, Melis , Gostynski, Antoni, Gupta, Lalit Kumar, Mazereeuw‐Hautier, Juliette, Hoetzenecker, Wolfram , Itin, Peter, Jankowski, Marek , Medvecz, Márta, Moosbrugger‐Martinz, Verena , Paller, Amy S., Plázár, Dóra , Queiróz, Amadeu José Rodrigues , Riera‐Monroig, Josep , Rosa, Ralph, Schmuth, Matthias, Freire, Maella Severino , Shabat, Itzhak, Shapiro, Jonathan , Soto‐García, Diego , Stratigos, Alexander J., Tadini, Gianluca Abel, Takeichi, Takuya , Verma, Kaushal K. , Wikström, Jakob D. , Ziv, Michael , Dodiuk‐Gad, Roni Pircha, Xiong, Grace , Mueller, Simon M , Ezzedine, Khaled , Choate, Keith , Gostynski, Antoni , Gupta, Ankan , Hoetzenecker, Wolfram , Jankowski, Marek , Kubo, Akiharu , Lee, Haur Yueh , Lehman, Julia Scott, Mellerio, Jemima E , Queiróz, Amadeu José Rodrigues , Freire, Maella Severino , Shapiro, Jonathan , Soto-García, Diego , Takeichi, Takuya , Wikström, Jakob D , Zink, Alexander , Navarini, Alexander , Hovnanian, Alain , Murrell, D F , Aghazadeh, Nessa , Aldhaheri, Ahmed S., Guenova, Emmanuella , Gönülal, Melis , Mazereeuw‐Hautier, J. , Lehman, Julia S. , Lepekhova, Anfisa A. , Medvecz, Márta, Paller, Amy S. , Schmuth, Matthias , Simpson, Cory L. , Tadini, Gianluca , Wikström, Jakob D. , Dodiuk‐Gad, Roni P.

Journal of the European Academy of Dermatology and Venereology | June 1, 2026 | Volume: No volume available | Issue: No issue available | Pages: No page available

10.1111/jdv.70483 | PMID 42223188 Get It

Abstract Darier disease (DD) is a rare autosomal dominant genodermatosis. This comprehensive review, developed by the Darier Disease International Task Force (DDITF), consolidates current knowledge on the genetic basis, molecular pathophysiology, clinical presentation, diagnosis and management of DD, offering a global perspective that unites shared expertise. The disease arises from pathogenic variants in the ATP2A2 gene, which encodes sarco/endoplasmic reticulum Ca 2+ ‐ATPase isoform 2 (SERCA2), leading to disrupted calcium homeostasis and impaired desmosomal integrity. Clinically, DD is classified based on lesion type (classic vs. non‐classic) and is often accompanied by significant extracutaneous manifestations. Management remains challenging and requires a multifaceted approach, including topical therapies, systemic retinoids and lifestyle modifications. Emerging treatments that target the underlying molecular mechanisms offer promise for improved outcomes. This review aims to provide an updated reference and practical guidance for clinicians involved in the care and study of DD.
Blood-based biomarkers and the current landscape of Alzheimer’s disease diagnosis: ethical considerations and practical guidance
Naini, Savana M. , Mantyh, William G., Waldron, Eric J. , Satin, David J. , Basso, Michael R. , Garland, McKenna, McManimen, Stephanie, Whiteside, Douglas M. , Mantyh, William G. , Whiteside, Douglas , Garland, McKenna M. , McManimen, Stephanie L.

Journal of Clinical and Experimental Neuropsychology | May 31, 2026 | Volume: No volume available | Issue: No issue available | Pages: 1-13

10.1080/13803395.2026.2681010 | PMID 42218590 Get It

Conflicts of Interest in Plastic Surgery Journals
Ruta, Michael R , Mahanti, Hannah , Jungbauer, W Nicholas, Bernard, Robert, Jungbauer, Walter N , Bernard, Robert W.

Annals of Plastic Surgery | May 29, 2026 | Volume: 97 | Issue: 3 | Pages: 349-354

10.1097/sap.0000000000004781 | PMID 42213534 Get It

Background: Conflicts of interest pose a risk to the integrity of clinical research. As part of the Sunshine Act, the Open Payments Program was established to provide transparency in financial relationships between commercial entities and physicians. Previous research indicates disparities between industry payments self-reported by plastic surgeon authors and those disclosed by commercial entities. This study sought to revisit the accuracy of conflict-of-interest disclosures, comparing current trends with previously published data, and introduce a novel automated search tool designed to facilitate future reviews of self-disclosures. Methods: Articles from the Aesthetic Surgery Journal and Plastic and Reconstructive Surgery published between 2017 and 2022 were reviewed. Self-reported disclosures for plastic surgeon authors were aggregated and compared against the Open Payments database using Python. Results: A total of 8040 articles were reviewed. After filtering and applying inclusion criteria, 961 unique authors and 4226 authorships were identified. A total of 5802 discrepancies were found, with 78.6% of eligible authors having at least 1 discrepancy. Four percent of the included publications were estimated to contain undisclosed relationships that qualified as conflicts of interest. The median total payments for authors with discrepancies were greater than for authors without discrepancies ($9600 vs. $2500; P <0.001). A discrepancy in self-reporting was more likely to be identified among senior authors ( P <0.001). Conclusions: Plastic surgeon authors continue to underreport their financial relationships. Automated screening may help identify disclosure discrepancies and support more complete author self-reporting.
Anti-diabetic medications to fight Parkinson's disease and dementia with Lewy bodies: a pilot study
Chmiela, Tomasz , HECKMAN, M, Fang, Zhihui J., Wszolek, Zbigniew K., Wilson, Jessica R. , Chmiela, Tomasz , Dulski, Jarosław , Heckman, Michael G. , Wszołek, Zbigniew K. , Wilson, Jessica R.

Frontiers in Neurology | May 29, 2026 | Volume: 17 | Issue: No issue available | Pages: No page available

10.3389/fneur.2026.1825229 | PMID 42318251 Get It

Introduction Parkinson's disease (PD) and Dementia with Lewy Bodies (DLB) are progressive neurodegenerative disorders characterized by alpha-synuclein pathology. As current therapies largely target symptoms, there is a clear need for disease-modifying treatments. Emerging evidence links these disorders to glucose metabolism dysregulation, suggesting antidiabetic agents may hold therapeutic potential. Methods This was a prospective, randomized, double-blind pilot study involving 12 subjects with PD or DLB to evaluate the tolerability and preliminary effects of a dipeptidyl peptidase 4 (DPP4) inhibitor (sitagliptin 100 mg) vs. sodium glucose like transporter 2 (SGLT2) inhibitor (dapagliflozin 10 mg) over a 4-week period, compared to a placebo. We assessed changes in Movement Disorder Society-Unified Parkinson's Disease Rating Scale (MDS-UPDRS) scores, cognitive function, and autonomic biomarkers. Both sitagliptin and dapagliflozin were well-tolerated, with no adverse events. While no significant changes were observed in cognitive scores, a significant difference was found in the change from baseline for MDS-UPDRS part 1 ( P = 0.008), part 2 ( P = 0.020), and total scores ( P = 0.047) when comparing the three groups. Discussion The dapagliflozin group showed more favorable trends in MDS-UPDRS scores. Limitations include small study size and duration as well as all participants had PD except one subject in the DPP4 inhibitor group with DLB. This pilot study suggests that these inhibitors are safe in PD and DLB patients. The preliminary findings, particularly the trends in the dapagliflozin group, provide a basis for larger-scale, long-term studies to confirm these potential symptomatic benefits and explore disease-modifying effects. Clinical trial registration https://clinicaltrials.gov/study/NCT06263673 , identifier: NCT06263673.
Comparison of Ustekinumab and Vedolizumab Effectiveness in Perianal Crohn’s Disease
Eldesouki, Mohamed H. , Rabea, Eslam, Aldemerdash, Mohamed A. , Seminerio, Jennifer, Farraye, Francis A., Hashash, Jana G., Eldesouki, Mohamed H. , Rabea, Eslam Mohammed , Tageldin, Omar , Seminerio, Jennifer L., Farraye, Francis A. , Hashash, Jana G.

Journal of Clinical Gastroenterology | May 29, 2026 | Volume: No volume available | Issue: No issue available | Pages: No page available

10.1097/mcg.0000000000002398 | PMID 42213056 Get It

Background: Perianal Crohn’s disease (PCD) is a severe and disabling phenotype of Crohn’s disease that often requires multidisciplinary medical and surgical management. Although ustekinumab (UST) and vedolizumab (VDZ) are widely used after antitumor necrosis factor (anti-TNF) failure, direct comparative data specifically in PCD remain limited. Methods: We conducted a multicenter, retrospective cohort study using the TriNetX US Collaborative Network to compare the effectiveness of UST versus VDZ in adults (18 y or older) with PCD between January 2017 and May 2023. Outcomes were perianal-specific clinical events, including definitive fistula surgery, incision and drainage, diversion procedures, and antibiotic use (metronidazole or ciprofloxacin), assessed at 1 and 2 years after biological initiation. Propensity score matching (PSM) (1:1) was performed to balance baseline variables. Time-to-event analyses were conducted in the matched population using Kaplan–Meier methods, and hazard ratios (HRs) were estimated using Cox proportional hazards models within the matched cohorts. Results: A total of 2936 patients were identified before PSM: 1997 patients in the UST group and 939 patients in the VDZ group. After PSM, 936 patients were included in each cohort. In the matched cohorts, UST was associated with significantly lower risk of definitive perianal fistula surgery (HR: 0.66, 95% CI: 0.50-0.89; P <0.01), and composite surgical events (HR: 0.70, 95% CI: 0.54-0.87; P <0.01) compared with VDZ at 1 year. Rates of antibiotic use, incision and drainage of perianal abscess, and diversion procedures were numerically lower but not statistically significant. At 2 years, these findings persisted, with significantly lower cumulative incidence of definitive perianal fistula surgery (HR: 0.78, 95% CI: 0.61-0.90; P =0.03), composite surgical events (HR: 0.81, 95% CI: 0.69-0.90; P <0.01), and antibiotic use (HR: 0.86, 95% CI: 0.75-0.93; P =0.04) in the UST cohort compared with VDZ. Rates of incision and drainage and diversion procedures remained similar between groups. Conclusion: In this large real-world cohort, UST was associated with lower risks of perianal surgical interventions at one and two years and reduced antibiotic utilization at two years compared with VDZ in patients with PCD. These findings highlight meaningful differences in real-world effectiveness between therapies and support the need for prospective studies to further evaluate comparative effectiveness in this population.