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306 citation(s) found for "Lü, Tong".

ACE: Anatomically Consistent Embeddings in Composition and Decomposition
Zhou, Ziyu , Luo, Haozhe , Taher, Mohammad Reza Hosseinzadeh , Pang, Jiaxuan , Ding, Xiaowei , Gotway, Michael B. , Liang, Jianming

Mayo Clinic

2025 IEEE/CVF Winter Conference on Applications of Computer Vision (WACV) | April 8, 2025 | Volume: No volume available | Issue: No issue available | Pages: 3823-3833

10.1109/wacv61041.2025.00376 Get It

Thrombocytopenia and autoimmune hemolytic anemia in antiphospholipid antibody-positive patients: Descriptive analysis of the AntiPhospholipid syndrome alliance for clinical trials and InternatiOnal networking (APS ACTION) clinical database and repository (
Erton, Zeynep Belce , Leaf, Rebecca Karp , Andrade, Danieli , Clarke, Ann E. , Tektonidou, Maria G. , Pengo, Vittorio , Sciascia, Savino , Kello, Nina , López-Pedrera, C. , Jesús, Guilherme Ramires de , Atsumi, Tatsuya , Zhang, Zhouli, Branch, D. Ware , Pazzola, Giulia, Rodríguez-Almaraz, Esther , Petri, Michelle , Artım-Esen, Bahar , Zuo, Yu , Willis, Rohan , Barber, Megan R W, Roubey, Robert, Erkan, Doruk, de Jesus, Guilherme , Branch, D Ware , Duarte-García, Alí , Rodriguez-Almaraz, Esther , Petri, Michelle , Cervera, Ricard , Artim-Esen, Bahar , Quintana, Rosana M , Zuo, Yu , Willis, Rohan , Radin, Massimo , Meroni, PierLuigi , Bertolaccini, Maria Laura , Cohen, Hannah , Tektonidou, Maria G , Sciascia, Savino , Gea, Josep Pardos , Paredes, D. , Belmont, H. Michael , Fortin, Paul R. , Zhang, Zhouli, Efthymiou, Maria , Andréoli, Laura , Duarte‐García, Alí , Shi, Hui , Barber, Megan R.W. , Skeith, Leslie , Cohen, Hannah , Erkan, Doruk

Mayo Clinic

Lupus | April 4, 2025 | Volume: 34 | Issue: 6 | Pages: 617-625

10.1177/09612033251332258 | PMID 40180601 Get It

Background/Purpose APS ACTION Registry was created to study the natural course of antiphospholipid syndrome (APS) over 10 years in persistently antiphospholipid antibody (aPL) positive patients with or without systemic autoimmune rheumatic diseases (SARDs). Our primary objective was to compare the characteristics of aPL-positive patients with or without thrombocytopenia (TP) and/or autoimmune hemolytic anemia (AIHA). Methods The registry inclusion criteria are positive aPL based on the Revised Sapporo APS Classification Criteria, tested at least twice within 1 year prior to enrollment. For the primary comparison of demographic, clinical, and serologic characteristics in this retrospective study, we divided patients into two groups: TP/AIHA ever and never. Thrombocytopenia was defined as a platelet count of <100,000 x 10 9 /L tested twice at least 12 weeks apart, and AIHA was defined as anemia with hemolysis and a positive direct antiglobulin test (DAT). For the secondary analysis, we compared patients with TP versus AIHA, and the immunosuppressive use stratified by systemic lupus erythematosus (SLE) classification. Results As of April 2022, of 1,039 patients (primary aPL/APS: 618 [59%]; SLE classification: 334 [31%]) included in the registry, 228 (22%) had baseline (historical or current) TP and/or AIHA (TP only: 176 [17%]; AIHA only: 35 [3%], and both: 17 [2%]). Thrombocytopenia and/or AIHA was significantly associated with Asian race, SLE classification, cardiac valve disease, catastrophic/microvascular APS, triple aPL (lupus anticoagulant, anticardiolipin antibody, and anti-β 2 -glycoprotein-I antibody) positivity, and SLE-related serologic and inflammatory markers. When 101/618 (16%) primary aPL/APS patients and 101/334 (34%) SLE patients with TP and/or AIHA were compared, azathioprine and mycophenolate mofetil were more commonly reported in lupus patients, however corticosteroid, intravenous immunoglobulin, and rituximab use were similar between groups. Conclusion In our large multi-center international cohort of persistently aPL-positive patients, approximately one-fifth had active or historical TP and/or AIHA at registry entry; half of these patients had additional SLE. Cardiac valve disease, catastrophic/microvascular APS, and triple aPL-positivity were aPL-related clinical and laboratory manifestations associated with TP and/or AIHA, suggesting a more severe APS clinical phenotype in aPL-patients with TP and/or AIHA.
Hypertension and Atrial Fibrillation: A Frontier Review From the AF-SCREEN International Collaboration
Schnabel, Renate B. , Schutte, Aletta E. , Buckley, Claire , Cameron, Alan C. , Damasceno, Albertino , Diederichsen, Søren Zöga , Doehner, Wolfram , Joung, Boyoung , Hankey, Graeme J. , Lobban, Trudie , Mairesse, Georges H. , Svendsen, Jesper Hastrup , Tieleman, Robert G , Wang, Ji‐Guang , Niiranen, Teemu J , Schnabel, Renate B , Schutte, Aletta E , Boriani, Giuseppe , Buckley, Claire , Cameron, Alan C , Damasceno, Albertino , Diederichsen, Søren Z , Doehner, Wolfram , Guo, Yutao , Hobbs, F D Richard , Joung, Boyoung , Hankey, Graeme J , Lip, Gregory Y H , Lobban, Trudie , Løchen, Maja-Lisa , Mairesse, Georges , Mbakwem, Amam , Noseworthy, Peter A , Steinhubl, Steven , Stergiou, George , Svendsen, Jesper Hastrup , Tieleman, Robert G , Wang, Ji-Guang , Poulter, Neil R , Healey, Jeffrey S , Freedman, Ben , Biton, Yitschak , Boriani, Giuseppe , Hobbs, Richard , Mbakwem, Amam , Noseworthy, Peter A. , Ntaios, George , Stergiou, George S. , Healey, Jeff S. , Freedman, Ben

Mayo Clinic

Circulation | March 24, 2025 | Volume: 151 | Issue: 12 | Pages: 863-877

10.1161/circulationaha.124.071047 | PMID 40127157 Get It

Hypertension is the leading modifiable risk factor for atrial fibrillation (AF) and is estimated to be present in >70% of AF patients. This Frontiers Review was prepared by 29 expert members of the AF-SCREEN International Collaboration to summarize existing evidence and knowledge gaps on links between hypertension, AF, and their cardiovascular sequelae; simultaneous screening for hypertension and AF; and the prevention of AF through antihypertensive therapy. Hypertension and AF are inextricably connected. Both are easily diagnosed, often silent, and frequently treated inadequately. Together, they additively increase the risk of ischemic stroke, heart failure, and many types of dementia, resulting in greater all-cause mortality, considerable disease burden, and increased health care expenditures. Automated upper arm cuff blood pressure devices with implemented technology can be used to simultaneously detect both hypertension and AF. However, positive screening for AF with an oscillometric blood pressure monitor still requires ECG confirmation. The current evidence suggests that high-risk individuals aged ≥65 years or with treatment-resistant hypertension could benefit from AF screening. Since antihypertensive therapy effectively lowers AF risk, particularly in individuals with left ventricular dysfunction, hypertension should be the key target for AF prediction and prevention rather than merely a comorbidity of AF. Nevertheless, several important gaps in knowledge need to be filled over the next years, including the ideal method and selection of patients for simultaneous screening of hypertension and AF and the optimal antihypertensive drug class and blood pressure targets for AF prevention.
Perioperative pembrolizumab in early-stage non-small cell lung cancer (NSCLC): safety, efficacy, and exploratory biomarker analysis
Wood, Cameron , Lyniv, Liliana, Isaacs, James M, Kaufman, Jacob M., Oduah, Eziafa , Clarke, Jeff, Crawford, Jeffrey, Stinchcombe, Thomas E. , Tong, Betty , Wigle, Dennis A. , Dragnev, Konstantin H. , Antonia, Scott , Ready, Neal , Wigle, Dennis, Ready, Neal , Wood, Cameron , Isaacs, James , Wang, Xiaofei , Gu, Lin, Weinhold, Kent J.

Mayo Clinic

Journal for ImmunoTherapy of Cancer | February 4, 2025 | Volume: 13 | Issue: 2 | Pages: e010395

10.1136/jitc-2024-010395 | PMID 39904561 Get It

Background Our study was designed to determine the safety, efficacy, and immunological effects of perioperative pembrolizumab in early-stage NSCLC. Methods This is a single-arm phase II study of perioperative pembrolizumab in patients with untreated, clinical stage IB to IIIA NSCLC. Patients received two doses of 200 mg pembrolizumab, surgery, standard adjuvant chemotherapy, followed by four doses adjuvant pembrolizumab. The primary objective of this study was to determine surgical feasibility rate, and secondary objectives are pathological response rate, treatment adverse events, efficacy data, and exploratory analysis of biomarkers. Results 30 patients initiated perioperative pembrolizumab, and 25 completed tumor resection. At median follow-up of 59 months after surgical resection, seven patients had disease progression, while six had died representing. A 5-year progression-free survival (PFS) from time of surgery was 72.0% (56.4%–91.9%) and overall survival (OS) from time of surgery was 75.8% (60.7%–94.7%). Major pathological response (MPR) was found in seven tumors (28%) including two complete responses (4%). Across all treated patients, four receiving neoadjuvant and four receiving adjuvant pembrolizumab experienced treatment-related adverse events of grade 3 or higher with no grade 5 events. Plasma proprotein convertase subtilisin/kexin type 9 (PCSK9) levels increased across our patient cohort over time from baseline until postsurgery and remained elevated at the end of treatment. There was a significant difference between mean plasma PCSK9 levels for patients with MPR versus all other patients on study when checked postoperatively. Conclusions Perioperative pembrolizumab was safe and effective with promising MPR rate, PFS, and OS.
Predictors of Mortality in Antiphospholipid Antibody–Positive Patients: Prospective Results From Antiphospholipid Syndrome Alliance for Clinical Trials and International Networking Clinical Database and Repository
Ahmadzadeh, Yasaman , Magder, Larry S., Paredes, D. , Tektonidou, Maria G. , Sciascia, Savino , Andréoli, Laura , Signorelli, Flávio , Fortin, Paul R. , Barilaro, Giuseppe , Clarke, Ann E. , Atsumi, Tatsuya , López-Pedrera, C. , Branch, D. Ware , Willis, Rohan , Kello, Nina , Zhang, Zhuoli , Rodríguez-Almaraz, Esther , Artım-Esen, Bahar , Pazzola, Giulia, Thaler, Jonathan , Barber, Megan R.W. , Roubey, Robert, Cohen, Hannah, Petri, Michelle , Erkan, Doruk , Tektonidou, Maria G , Sciascia, Savino , Andreoli, Laura , Fortin, Paul R , Clarke, Ann E , Zhang, Zhuoli , Duarte-García, Alí , Radin, Massimo , Petri, Michelle , Erkan, Doruk , Ahmadzadeh, Yasaman , Magder, Larry S., Andrade, Danieli , Pengo, Vittorio , Efthymiou, Maria , Belmont, H. Michael , Knight, Jason S , Gea, Josep Pardos , Pons‐Estel, Guillermo , Shi, Hui , Duarte‐García, Alí , Thaler, Jonathan, Skeith, Leslie , Meroni, PierLuigi , Bertolaccini, Maria Laura , Cohen, Hannah

Mayo Clinic

Arthritis Care & Research | February 3, 2025 | Volume: 77 | Issue: 6 | Pages: 760-766

10.1002/acr.25503 | PMID 39895040 Get It

ObjectiveThe objective was to determine the mortality rate as well as the causes and predictors of death in antiphospholipid antibody (aPL)–positive patients with and without antiphospholipid syndrome (APS) classification.MethodsThe inclusion criterion for the multicenter international Antiphospholipid Syndrome Alliance for Clinical Trials and International Networking (APS ACTION) registry is positive aPLs according to the Revised Sapporo Classification Criteria tested within one year before enrollment. Patients are observed every 12 ± 3 months with clinical data and blood collection. For this prospective analysis, we first analyzed the causes of death for patients reported as “deceased.” Secondly, we analyzed risk factors for death using the adjusted Cox proportional hazards model and calculated survival probability using the Kaplan‐Meier model based on different age groups.ResultsOf 967 patients, 43 (5%) were deceased after a median follow‐up of 5.3 years. Based on the univariate analysis, deceased patients, compared to living patients, were more likely to be older and have a history of arterial thrombosis, catastrophic APS, concomitant systemic autoimmune diseases (SAIDs), and baseline cardiovascular disease (CVD) risk factors. Based on the Cox proportional hazards model adjusted for age and for each of the strongest predictors of death, arterial thrombosis (hazard ratio [HR] 2.94, 95% confidence interval [CI] 1.50–5.76), concomitant SAIDs (HR 2.97, 95% 1.56–5.63), and baseline any CVD risk factor (HR 2.43, 95% CI 1.05–5.71) were significantly associated with mortality.ConclusionIn our cohort of persistently aPL‐positive patients, the mortality rate was 5% after a median follow‐up of five years and was highest for patients ≥60 years old at registry entry. History of arterial thrombosis, concomitant SAIDs, and baseline any CVD risk factor independently predicted future death.
NCCN Guidelines® Insights: Lung Cancer Screening, Version 1.2025
Wood, Douglas E. , Kazerooni, Ella A. , Argento, Christine, Baines, Jonathan, Boer, Brian, Donington, Jessica , Eapen, Georgie A. , Ferguson, J. Scott , Hou, Lifang , Klippenstein, Donald, Kolansky, Ana S., Leung, Ann N. , Mazzone, Peter J. , Merritt, Robert E. , Norris, Kim, Onaitis, Mark W. , Pipavath, Sudhakar, Puri, Varun , Raz, Dan J. , Reddy, Chakravarthy, Reid, Mary E. , Sandler, Kim L. , Sears, Catherine R. , Tanoue, Lynn, Thacker, Amber L., Tong, Betty C. , Wei, Benjamin , McCullough, Beth, Ramakrishnan, Swathi , Hou, Lifang , Leung, Ann , Aberle, Denise R. , Brown, Lisa Marie , Kumar, Rohit , Leard, Lorriana E. , Sands, Jacob , Schabath, Matthew B. , Studts, Jamie L. , Thacker, Amber L., Travis, William D. , Westover, Kenneth D.

Mayo Clinic

Journal of the National Comprehensive Cancer Network | January 15, 2025 | Volume: 23 | Issue: 1 | Pages: No page available

10.6004/jnccn.2025.0002 | PMID 39819601 Get It

The NCCN Clinical Practice Guidelines in Oncology (NCCN Guidelines) for Lung Cancer Screening provide criteria for selecting individuals for screening and offer recommendations for evaluating and managing lung nodules detected during initial and subsequent annual screening. These NCCN Guidelines Insights focus on recent updates to the NCCN Guidelines for Lung Cancer Screening.
TDP‐43 Cryptic RNAs in Perry Syndrome: Differences across Brain Regions and TDP‐43 Proteinopathies
Pickles, Sarah , Bejarano, Jesús González , Narayan, Anand, Daughrity, Lillian M. , Cidfuentes, Candela Maroto, Reeves, Madison M., Yue, Mei, Otero, Paula Castellanos, Ayuso, Virginia Estades, Dunmore, Judy H., Song, Yuping , Tong, Jimei, DeTure, Michael , Rawlinson, Bailey, Castanedes‐Casey, Monica , Dulski, Jarosław , Cerquera‐Cleves, Catalina , Zhang, Yong‐Jie , Josephs, Keith A. , Petrucelli, Leonard , Prudencio, Mercedes , Pickles, Sarah R , Bejarano, Jesus Gonzalez , Daughrity, Lillian, Maroto Cidfuentes, Candela, Castellanos Otero, Paula, Estades Ayuso, Virginia, Dunmore, Judy, Wszolek, Z.K. , Prudencio, Mercedes , Zhang, Yong-Jie , Dulski, Jaroslaw , Estades Ayuso, Virginia , Narayan, Anand, Reeves, Madison M., Dickson, Dennis W. , Wszołek, Zbigniew K.

Mayo Clinic

Movement Disorders | January 9, 2025 | Volume: 40 | Issue: 4 | Pages: 662-671

10.1002/mds.30104 | PMID 39788898 Get It

Abstract Background Perry syndrome (PS) is a rare and fatal hereditary autosomal dominant neurodegenerative disorder caused by mutations in dynactin ( DCTN1 ). PS brains accumulate inclusions positive for ubiquitin, transactive‐response DNA‐binding protein of 43 kDa (TDP‐43), and to a lesser extent dynactin. Objectives Little is known regarding the contributions of TDP‐43, an RNA binding protein that represses cryptic exon inclusion, in PS. Therefore, we sought to identify the degree of TDP‐43 dysfunction in two regions of PS brains. Methods We evaluated the levels of insoluble pTDP‐43 and TDP‐43‐regulated cryptic RNAs and protein in the caudate nucleus and substantia nigra of 7 PS cases, 12 cases of frontotemporal lobar degeneration (FTLD) with TDP‐43 pathology, and 11 cognitively healthy controls without TDP‐43 pathology. Results Insoluble pTDP‐43 protein levels were detected in PS brains to a similar extent in the caudate nucleus and substantia nigra but lower than those in FTLD brains. The caudate nucleus of PS showed accumulation of eight TDP‐43‐regulated cryptic RNAs ( ACTL6B , CAMK2B , STMN2 , UNC13A , KCNQ2 , ATG4B , GPSM2 , and HDGFL2 ) and cryptic protein (HDGFL2) characteristic of FTLD. Conversely, only one cryptic target, UNC13A , reached significance in the substantia nigra despite similar pTDP‐43 levels. Conclusion We detected TDP‐43 cryptic RNAs and protein in PS caudate nucleus. Given the importance of cryptic exon biology in the development of biomarkers, and the identification of novel targets for therapeutic intervention, it is imperative we understand the consequences of TDP‐43 dysfunction across different brain regions and determine the targets that are specific and common to TDP‐43 proteinopathies. © 2025 The Author(s). Movement Disorders published by Wiley Periodicals LLC on behalf of International Parkinson and Movement Disorder Society.
Frontline R-CHOP and BR Have Similar Outcomes By SUVmax in Follicular Lymphoma
Negaard, Brianna J, Chartier, Loïc , Guerra, Luca, Haddadi, Sara , Black, Harrison, Trevis, Thomas , Tong, Tsz Hung, Moalem, Kamilia , Johnston, Anna , Hampel, Paul J. , Johnson, Jeffrey S. , Elizabeth, Steinepreis, Yang, Pinguang, Kosciejew, Serena, Elizabeth, Gould, Manos, Kate , Nowakowski, Grzegorz S. , Hodges, Georgina, Flowers, Christopher R. , Lossos, Izidore S. , Ansell, Stephen M., Mondello, Patrizia , Gysbers, Brianna J. , Arcaini, Luca , Tobin, Joshua W.D. , Link, Brian K. , Feldman, Andrew L. , Chihara, Dai , Casulo, Carla , Cottereau, Anne-Ségolène , Olson, Joshua, Romancik, Jason T. , Black, Harrison, Mou, Eric , Cheah, Chan Y. , Salvaris, Ross , Habermann, Thomas M. , Martin, Peter, Kahl, Brad S. , Nastoupil, Loretta J. , Talaulikar, Dipti , Trotman, Judith , Cerhan, James R. , Burack, Richard , Luminari, Stefano , Morschhauser, Franck , Ansell, Stephen M. , Maurer, Matthew J.

Mayo Clinic

Blood | December 6, 2024 | Volume: 144 | Issue: Supplement 1 | Pages: 3007-3007

10.1182/blood-2024-202088 Get It

Background: Positron emission tomography (PET) scan is the imaging modality of choice for initial staging and response assessment of follicular lymphoma (FL). Quantitative parameters such as standardized uptake value (SUV) have been investigated as putative prognosticators in FL, with high baseline SUVmax predicting aggressive disease. To date, there is no data to guide treatment choices in patients (pts) with high SUVmax but with no documented evidence of histologic transformation (HT). Specifically, it remains unclear whether anthracycline-containing regimens, such as R-CHOP, are more beneficial than R-Bendamustine (BR) in these pts. Therefore, we aimed to compare the efficacy of frontline R-CHOP and BR in newly diagnosed FL pts based on the SUVmax at baseline PET (bPET). Patients and Methods: Pts with newly diagnosed, biopsy-proven FL1-2 and FL3A who had a bPET scan and who received either first-line R-CHOP or BR within 6 months of diagnosis between 2002 and 2022 were evaluated. Analysis was restricted to pts with age &lt; 70 years to reduce confounding of age with treatment selection. Cohorts included were the FOLL12 (n=562, Luminari et al JCO 2022) and the R-chemotherapy arm of the RELEVANCE (n=216, Morschhauser et al NEJM 2018) clinical trials, the prospectively enrolled Molecular Epidemiology Resource (MER) and the Lymphoma Epidemiology of Outcomes (LEO) cohorts (n=288) and a retrospective cohort from 13 Australian centers (n=219). Choice of chemotherapy regimen was per treating physician. Maintenance was per protocol (FOLL12/RELEVANCE) or per treating physician (MER/LEO/Australia). Event-free survival (EFS) and overall survival (OS) were defined as time from treatment initiation to progression, relapse, retreatment or death; both were censored at 72 months due to varying follow-up across cohorts. SUVmax was grouped by tertile within each cohort to account for potential differences in SUVmax distributions and patient populations across cohorts. Kaplan Meier curves and multivariable Cox models cohort-stratified and adjusted for clinical factors (FLIPI, ECOG PS, age, grade 3A) were used to evaluate outcomes. Results: The median age at diagnosis was 57 years (IQR 49-64). 651 (51%) pts were treated with R-CHOP and 634 (49%) with BR. Within the study cohorts, there was a prevalence of cases receiving BR compared to R-CHOP in the Australian (90% vs 10%) and MER/LEO (68% vs 32%) cohorts, while the opposite was observed in the RELEVANCE (16% vs 84%) and FOLL12 (37% vs 63; p&lt;0.001) trials. Pts receiving R-CHOP were slightly younger (median 56 vs 58 years, p=0.005), more frequently had grade 3A (17% vs 7%, p&lt;0.001), elevated LDH (27% vs 22%, p=0.029), bulky disease &gt; 7 cm (44% vs 37%, p=0.019), lower ECOG PS (PS &gt;1 7% vs 13%, p&lt;0.001), and higher rate of high risk FLIPI (37% vs 30%, p=0.005). Baseline SUVmax was slightly lower in R-CHOP (median 10.7, IQR 7.9-14.9) vs BR (median 11.0, IQR 8.2-14.2) treated pts (p=0.0045). At a median follow-up of 56 months (range, 1-72 months), 415 pts (32%) had an event and 103 (8%) died. Higher SUVmax was not associated with EFS (middle tertile HR=0.96, 95% CI 0.76-1.22; upper tertile HR=0.86, 95% CI 0.68-1.09; p=0.45) or OS (middle tertile HR=1.28, 95% CI 0.80-2.05; upper tertile HR=0.97, 95% CI 0.59-1.59; p=0.44) in multivariable models stratified on cohort and adjusted for treatment and clinical factors. We then compared outcomes by treatment within tertiles of SUVmax. In multivariable models, R-CHOP had modestly inferior EFS to BR in low (HR=1.27, 95% CI 0.84-1.93) and middle tertiles (HR=1.49, 95% CI 0.99-2.25), and modestly superior OS to BR in low (HR=0.59, 95% CI 0.23-1.47) and middle (HR=0.79, 95% CI 0.37-1.71) tertiles. Both EFS (HR=1.06, 95% CI 0.71-1.58) and OS (HR=1.02, 95% CI 0.45-2.30) for R-CHOP were similar to BR in the highest tertile. No comparisons identified a statistically significant benefit for either therapy in multivariable models when evaluating SUVmax tertile subsets. Conclusions: In this large multicenter study of newly diagnosed FL pts with bPET who received frontline immunochemotherapy, higher baseline SUVmax was not associated with inferior outcomes after adjusting for treatment and clinical factors. Within the caveats of retrospective studies and confounding of treatment selection, these data provide no clear insights for SUVmax-based therapy selection in first-line follicular lymphoma pts treated with immunochemotherapy.
Dynamic associations between adverse events after lung transplantation and allograft ischaemic time
Zhang, Wenxi , Qiu, Tong, Metelmann, Isabella , Rucker, A. Justin , Du, Wenxing , Sef, Davorin , Jiao, Wenjie , Fritz, Ashley V, Sef, Davorin , Fritz, Ashley Virginia

Mayo Clinic

European Journal of Cardio-Thoracic Surgery | December 3, 2024 | Volume: 66 | Issue: 6 | Pages: No page available

10.1093/ejcts/ezae425 | PMID 39626309 Get It

Abstract OBJECTIVES The effect of allograft ischaemic time (AIT) on postoperative events after lung transplantation remains unclear. This study aims to assess the feasibility of extending the duration of AIT. METHODS The United Network for Organ Sharing database was queried for adult lung transplantation from 4 May 2005 to 30 June 2020. Patients were divided as per AIT into standard ischaemic time (&lt;6 h) and prolonged ischaemic time (≥6 h) groups using propensity score matching and evaluated on a continuous scale using restricted cubic splines. The primary outcome was overall 1-year and 5-year survival. RESULTS Among 11 438 propensity-matched recipients, standard ischaemic time and prolonged ischaemic time showed no differences in overall 1-year (P = 0.29) or 5-year (P = 0.29) survival. Prolonged ischaemic time independently predicted early postoperative ventilator support for &gt;48 h (OR = 1.33, 95% CI 1.22–1.44), dialysis (OR = 1.55, 95% CI 1.30–1.84), primary graft dysfunction (PGD; OR = 1.28, 95% CI 1.09–1.50), acute rejection (OR = 1.42, 95% CI 1.24–1.62), and interestingly, decreased 5-year bronchiolitis obliterans syndrome (HR = 0.91, 95% CI 0.85–0.97). In relative risk curves, 1-year mortality, prolonged ventilation, dialysis and PGD steadily increased per hour as AIT extended. The risk of acute rejection and 5-year bronchiolitis obliterans syndrome also showed significant changes between 5 and 8 h of AIT. In contrast, 5-year mortality remained constant despite rising AIT. CONCLUSIONS Prolonged AIT worsened early outcomes such as PGD, but improved bronchiolitis obliterans syndrome freedom at later time points. Despite this, both short- and long-term survival were similar between prolonged ischaemic time and standard ischaemic time patients. Dynamic risk changes in post-transplant events should be noted for prolonged ischaemia lung use.
Abstract 4126333: TRPC6 A404V is a gain-of-function variant associated with doxorubicin-induced cardiotoxicity in patients
Wu, Ying , Sun, Xiaojing , Wang, Ruxing , Norton, Nadine , Lee, Hon-Chi , Norton, Nadine , Lü, Tong

Mayo Clinic

Circulation | November 13, 2024 | Volume: 150 | Issue: Suppl_1 | Pages: No page available

10.1161/circ.150.suppl_1.4126333 Get It

Background: Gain-of-function mutations in the canonical transient receptor potential 6 (TRPC6) channel contribute to heart failure (HF) and focal segmental glomerulosclerosis in humans. Our GWAS results indicated that the TRPC6 A404V variant, having a minor allele frequency of 12% in the population, is associated with doxorubicin-induced cardiotoxicity. However, the underlying ionic mechanisms of this variant have not been fully examined. Methods: Combining patch clamp recording, site-directed mutagenesis, and in-silico analysis, we evaluated the TRPC6 A404V variant function. Results: Whole-cell TRPC6 currents were elicited in HEK293 cells using a voltage ramp protocol from -100 mV to +100 mV with a holding potential of -60 mV, 48 hours after transfection with TRPC6 WT or A404V cDNAs. The inward-current densities at -100 mV and the outward-current densities at +100 mV for TRPC6 WT and A404V variant were similar at baseline. However, after exposure to 50 μM 1-oleoyl acetyl-sn-glycerol (OAG, a TRPC6 activator), these current densities were significantly increased by 2.6-fold and 4.5-fold respectively in the WT (n=20 cells), and by 8.4-fold and 8.9-fold respectively in the A404V variant (n=12 cells, p<0.05 vs. WT). The OAG effects were abolished by superfusion with 1 μM BI-749327 (a specific TRPC6 inhibitor). Moreover, a 24-hour treatment with 0.5 μM doxorubicin (DOX) further amplified the effects of OAG, increasing the total inward- and outward-current densities by 7.2-fold and 9.5-fold respectively in TRPC6 WT (n=11 cells), and by 13.9-fold and 14.7-fold respectively in the A404V variant (n=13 cells, p<0.05 vs. WT). In comparison, the OAG effects on TRPC6 WT and A404V channels were not potentiated by treatment with 0.5 μM doxorubicinol (DOXol, a metabolite of DOX) for 24 h (n=10-12 cells, p=N.S.). Molecular docking studies showed that OAG had a lower binding energy (-5.60 kcal/mol) and a smaller apparent equilibrium constant (Kd) of 0.079 mM with the A404V variant, compared to those of -4.49 kcal/mol and 0.511 mM respectively with TTRPC6 WT. Conclusion: TRPC6 A404V is a gain-of-function variant with a higher binding affinity to OAG. Treatment with DOX but not DOXol greatly enhances TRPC6 WT and A404V channel activation by OAG. Thus, cancer patients carrying the TRPC6 A404V variant may be more vulnerable to develop HF upon treatment with anthracycline.