Publications by authors named "Anagnostopoulos I"

Background: Atrial fibrillation (AF) is the commonest supraventricular arrhythmia in adults. Timely AF diagnosis seems to ameliorate patients prognosis.

Purpose: To investigate the association between peak left atrial longitudinal strain (PALS) and new onset AF in the general population.

View Article and Find Full Text PDF
Article Synopsis
  • * In a study of 85 patients with paroxysmal AF, those categorized by BMI (normal, overweight, and obese) showed similar recurrence rates of AF, but obese patients reported better symptom improvement after CBA.
  • * Obese patients had longer procedure times and greater radiation exposure during CBA, while early AF recurrence and hypertension duration were identified as key predictors of later AF recurrence.
View Article and Find Full Text PDF
Article Synopsis
  • * Follow-up over approximately 29 months revealed that ILRs helped establish diagnoses in significant portions of these patients, particularly detecting issues like atrial fibrillation in those with a history of cryptogenic stroke.
  • * The findings suggest that ILRs not only aid in diagnosis but also lead to changes in treatment strategies for around one-fourth of the patients, making them a valuable tool in cardiac evaluations.
View Article and Find Full Text PDF

Background: Perceval-S has become a reliable and commonly used option in surgical aortic valve replacement (AVR) since its first implantation in humans 15 years ago. Despite the fact that this aortic valve has been proven efficient enough in the short and mid-term period, there is still lack of evidence for the long-term outcomes.

Materials And Methods: This is an observational retrospective study in a high-volume cardiovascular center.

View Article and Find Full Text PDF

Pluripotent stem cells can be differentiated into all three germ-layers including ecto-, endo-, and mesoderm in vitro. However, the early identification and rapid characterization of each germ-layer in response to chemical and physical induction of differentiation is limited. This is a long-standing issue for rapid and high-throughput screening to determine lineage specification efficiency.

View Article and Find Full Text PDF

Background: This study is a pioneer systematic review and meta-analysis aimed at comparing the influence of Class II and Class III skeletal malocclusions on pharyngeal airway dimensions. It stands as the inaugural comprehensive assessment to collate and analyze the disparate findings from previously published articles on this topic. The objective of this study was to identify published articles that compare the effects of class II and class III skeletal malocclusion on the pharyngeal airway dimensions.

View Article and Find Full Text PDF
Article Synopsis
  • The human microbiome is a key area of research for understanding health, but analyzing its complex data is challenging.
  • Machine learning (ML) algorithms are being developed to help process this data, uncover patterns, and create predictive models.
  • This review catalogs ML-based software tools for microbiome analysis, providing insights, usage examples, and highlighting areas that need improvement for both developers and users.
View Article and Find Full Text PDF

Purpose: Primary mediastinal large B-cell lymphoma (PMBCL) is a rare aggressive lymphoma predominantly affecting young female patients. Large-scale genomic investigations and genetic markers for risk stratification are lacking.

Patients And Methods: To elucidate the full spectrum of genomic alterations, samples from 340 patients with previously untreated PMBCL were investigated by whole-genome (n = 20), whole-exome (n = 78), and targeted (n = 308) sequencing.

View Article and Find Full Text PDF

Disease-causing mutations in genes encoding transcription factors (TFs) can affect TF interactions with their cognate DNA-binding motifs. Whether and how TF mutations impact upon the binding to TF composite elements (CE) and the interaction with other TFs is unclear. Here, we report a distinct mechanism of TF alteration in human lymphomas with perturbed B cell identity, in particular classic Hodgkin lymphoma.

View Article and Find Full Text PDF

(1)Introduction: Catheter ablation has become a cornerstone for the management of patients with atrial fibrillation (AF). Nevertheless, recurrence rates remain high. Epicardial adipose tissue (EAT) has been associated with AF pathogenesis and maintenance.

View Article and Find Full Text PDF

Diagnosing any of the more than 30 types of T-cell lymphomas is considered a challenging task for many pathologists and currently requires morphological expertise as well as the integration of clinical data, immunophenotype, flow cytometry and clonality analyses. Even considering all available information, some margin of doubt might remain using the current diagnostic procedures. In recent times, the genetic landscape of most T-cell lymphomas has been elucidated, showing a number of diagnostically relevant mutations.

View Article and Find Full Text PDF
Article Synopsis
  • Scientists found that a gene called ZNF217 often has mutations in a type of cancer called primary mediastinal B cell lymphoma (PMBCL).
  • In 33% of the patients studied, these mutations changed how certain genes worked, especially those related to inflammation and immune responses.
  • When they removed ZNF217 in experiments, it messed up how cells were supposed to behave and develop, showing that ZNF217 helps control gene activity and cell growth in B cells.
View Article and Find Full Text PDF

Patients with acute ischemic stroke (AIS) presenting mild symptoms with a low National Institutes of Health Stroke Scale (NIHSS) score ≤8 and also found to have an intracranial large vessel occlusion (LVO) undergo endovascular thrombolysis (ET) or medical management alone. The current study aimed to evaluate the safety and effectiveness of medical management vs. ET therapy among patients with mild AIS symptoms (NIHSS score ≤8) accompanied by LVO.

View Article and Find Full Text PDF

Machine Learning (ML), among other things, facilitates Text Classification, the task of assigning classes to textual items. Classification performance in ML has been significantly improved due to recent developments, including the rise of Recurrent Neural Networks (RNNs), Long Short-Term Memory (LSTM), Gated Recurrent Units (GRUs), and Transformer Models. Internal memory states with dynamic temporal behavior can be found in these kinds of cells.

View Article and Find Full Text PDF

Deep Neural Networks (DNNs) have achieved impressive performance in various image recognition tasks, but their large model sizes make them challenging to deploy on resource-constrained devices. In this paper, we propose a dynamic DNN pruning approach that takes into account the difficulty of the incoming images during inference. To evaluate the effectiveness of our method, we conducted experiments on the ImageNet dataset on several state-of-art DNNs.

View Article and Find Full Text PDF

Background: Cryptogenic stroke (CS) remains a significant cause of morbidity. Failure to identify the underlying pathology increases the rate of recurrence. Atrial fibrillation (AF) seems to be responsible for a substantial proportion of CS.

View Article and Find Full Text PDF

The 5th edition of the WHO classification (WHO-HAEM5) and the International Consensus Classification (ICC) have considerable overlap but also some distinct differences in categorizing indolent B‑cell lymphomas. Most differences with the expected impact on the daily diagnostic routine relate to follicular lymphoma (FL). Grading of FL remains mandatory only in the ICC; a diffuse growth pattern in an FL with > 15 blasts per high-power field (FL grade 3A) is not automatically classified as DLBCL according to WHO-HAEM5, and an FL subtype with unusual morphology (blastoid or large centrocyte) and biology is recognized as an entity only in the WHO-HAEM5.

View Article and Find Full Text PDF

Multiple myeloma (MM), a tumor of germinal center (GC)-experienced plasma cells, comprises distinct genetic subgroups, such as the t(11;14)/CCND1 and the t(4;14)/MMSET subtype. We have generated genetically defined, subgroup-specific MM models by the GC B cell-specific coactivation of mouse Ccnd1 or MMSET with a constitutively active Ikk2 mutant, mimicking the secondary NF-κB activation frequently seen in human MM. Ccnd1/Ikk2ca and MMSET/Ikk2ca mice developed a pronounced, clonally restricted plasma cell outgrowth with age, accompanied by serum M spikes, bone marrow insufficiency, and bone lesions.

View Article and Find Full Text PDF

Background: Heart failure with preserved ejection fraction (HFpEF) is a syndrome characterized by marked heterogeneity in comorbidities and etiopathology substrates, leading to a diverse range of clinical manifestations and courses. Treatment options have been extremely limited and up to this day, there are virtually no pharmaceutical agents proven to reduce mortality in these patients.

Objective: The primary objective of this narrative review is to critically summarize existing evidence regarding the use of Angiotensin Receptor-Neprilysin Inhibitor (ARNI), spironolactone, pirfenidone and empagliflozin in HFpEF.

View Article and Find Full Text PDF

Epstein-Barr virus (EBV) associated diffuse large B-cell lymphoma (DLBCL) represents a rare aggressive B-cell lymphoma subtype characterized by an adverse clinical outcome. EBV infection of lymphoma cells has been associated with different lymphoma subtypes while the precise role of EBV in lymphomagenesis and specific molecular characteristics of these lymphomas remain elusive. To further unravel the biology of EBV associated DLBCL, we present a comprehensive molecular analysis of overall 60 primary EBV positive (EBV+) DLBCLs using targeted sequencing of cancer candidate genes (CCGs) and genome-wide determination of recurrent somatic copy number alterations (SCNAs) in 46 cases, respectively.

View Article and Find Full Text PDF
Article Synopsis
  • A study explored the connection between physical activity (PA) levels and the risk of developing atrial fibrillation (AF) in females, addressing a gap in previous research.
  • Analyzing data from 15 studies with over 1.8 million participants, the results indicated an inverse nonlinear relationship between weekly PA and AF risk, with a notable incidence of 3.7%.
  • The findings suggest that engaging in moderate to vigorous PA up to 50 METs-h/week can help reduce AF risk in women, while even low levels of weekly activity provide health benefits.
View Article and Find Full Text PDF
Article Synopsis
  • PTLD (Post-transplant lymphoproliferative disorder) is a serious risk for organ transplant recipients and is linked to factors like EBV infection and weakened immune response due to immunosuppression.
  • Previous research revealed that EBV affects the microRNA expression in B cells, specifically suppressing miR-194 in EBV-positive PTLD, but studies on circulating miRs in PTLD patients were lacking.
  • The current study found significantly lower levels of several miRs (including miR-194, 17, 19, and 106a) in the plasma and extracellular vesicles of pediatric transplant recipients with EBV+ PTLD, indicating that these miRs
View Article and Find Full Text PDF
Article Synopsis
  • * The RNA-based Lymph2Cx assay accurately differentiates between GCB and ABC DLBCL using formalin-fixed samples and has shown a high success rate in routine diagnostic settings, with only a small failure rate due to quality issues.
  • * In a study of 147 aggressive B-cell lymphoma cases, Lymph2Cx results disagreed with the Hans algorithm in 18% of cases, predominantly indicating a shift from GCB to
View Article and Find Full Text PDF