Publications by authors named "Marianne Treppendahl"

Article Synopsis
  • Obesity and type 2 diabetes are common in patients with heart failure with preserved ejection fraction, leading to significant symptoms, and there's a lack of approved treatments targeting this condition.
  • A study assigned 616 patients with heart failure, obesity, and type 2 diabetes to receive either once-weekly semaglutide or a placebo for one year, measuring improvements in symptoms and weight.
  • Results showed that those on semaglutide had significantly better improvements in symptom scores (KCCQ-CSS) and lost more body weight compared to the placebo group, along with other beneficial outcomes in physical activity and inflammation markers.
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Article Synopsis
  • Heart failure with preserved ejection fraction (HFpEF) is more common in individuals with obesity and currently lacks approved treatments targeting this specific condition.
  • A study involving 529 obese patients with HFpEF tested the weekly administration of semaglutide against a placebo over a 52-week period, measuring changes in symptoms, body weight, and physical activity.
  • Results showed that semaglutide significantly improved symptoms (KCCQ-CSS score increase of 16.6 vs. 8.7 for placebo), reduced body weight (-13.3% vs. -2.6%), and enhanced walking distance (21.5 m vs. 1.2 m), with additional benefits noted in inflammation levels. *
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Metabolic comorbidities are common in patients with cardiorenal disease; they can cause atherosclerotic cardiovascular disease (ASCVD), speed progression, and adversely affect prognosis. Common comorbidities are Type 2 diabetes mellitus (T2DM), obesity/overweight, chronic kidney disease (CKD), and chronic liver disease. The cardiovascular system, kidneys, and liver are linked to many of the same risk factors (e.

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Background: The majority of patients with heart failure with preserved ejection fraction (HFpEF) have the obesity phenotype, but no therapies specifically targeting obesity in HFpEF exist.

Objectives: The aim of this study was to describe the design and baseline characteristics of 2 trials of semaglutide, a glucagon-like peptide-1 receptor agonist, in patients with the obesity HFpEF phenotype: STEP-HFpEF (Semaglutide Treatment Effect in People with obesity and HFpEF; NCT04788511) and STEP-HFpEF DM (Semaglutide Treatment Effect in People with obesity and HFpEF and type 2 diabetes; NCT04916470).

Methods: Both STEP-HFpEF and STEP-HFpEF DM are international multicenter, double-blind, placebo-controlled trials that randomized adults with HFpEF and a body mass index ≥30 kg/m to once-weekly semaglutide at a dose of 2.

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Article Synopsis
  • Human endogenous retroviruses (HERV), which are mostly silent in the genome, can potentially be activated in myeloid malignancies, making them targets for immune response.
  • Researchers created a library of potential HERV-derived peptides and identified T cell recognition of 29 peptides from 18 HERV loci, with stronger responses in specific HERVs.
  • The study suggests that HERVs could be targeted in immunotherapy for cancer, as enhanced transcription of these elements is observed in patients compared to healthy individuals.
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Aim: To investigate the effects of semaglutide versus comparators on major adverse cardiovascular events (MACE: cardiovascular [CV] death, nonfatal myocardial infarction [MI] and nonfatal stroke) and hospitalization for heart failure (HF) in the SUSTAIN (subcutaneous semaglutide) and PIONEER (oral semaglutide) trials across subgroups of varying CV risk.

Methods: Post hoc analyses of individual patient-level data combined from SUSTAIN 6 and PIONEER 6 were performed to assess MACE and HF. MACE were analysed in subjects with and without: established CV disease and/or chronic kidney disease; prior MI or stroke; and prior HF.

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Objective: Efficacy and safety of the glucagon-like peptide 1 (GLP-1) analog oral semaglutide and the sodium-glucose cotransporter 2 inhibitor empagliflozin were compared in patients with type 2 diabetes uncontrolled on metformin.

Research Design And Methods: Patients were randomized to once-daily open-label treatment with oral semaglutide 14 mg ( = 412) or empagliflozin 25 mg ( = 410) in a 52-week trial. Key end points were change from baseline to week 26 in HbA (primary) and body weight (confirmatory secondary).

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Aims: Using a pragmatic approach, the LIRA-PRIME trial aims to address a knowledge gap by comparing efficacy in controlling glycaemia with glucagon-like peptide-1 analog liraglutide vs oral antidiabetic drugs (OADs) in patients with type 2 diabetes (T2D) uncontrolled with metformin monotherapy in primary care practice. We report the study design and patient baseline characteristics.

Materials And Methods: This 104-week, two-arm, open-label, active-controlled trial is active in 219 primary care practices across nine countries.

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Objective: Animal studies demonstrated that glucagon-like peptide-1 receptor agonists reduce myocardial necrosis following regional ischaemia induction. This effect may improve cardiovascular outcomes after myocardial infarction. Risk of cardiovascular death or hospitalisation for heart failure after myocardial infarction was evaluated in patients with type 2 diabetes at high cardiovascular risk in the LEADER trial.

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Diabetes mellitus (DM) is a known risk factor for myocardial infarction (MI); however, data regarding MI subtypes in people with diabetes are limited. In the Liraglutide Effect and Action in Diabetes: Evaluation of Cardiovascular Outcome Results (LEADER) trial (n = 9,340), liraglutide significantly reduced the risk of major adverse cardiovascular (CV) events (composite of CV death, nonfatal MI, or nonfatal stroke) versus placebo in patients with type 2 DM and high CV risk. Liraglutide also reduced risk of first MI (292 events with liraglutide vs 339 with placebo).

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Cytopenia is common in the elderly population and etiology may be difficult to assess. Here, we investigated the occurrence of mutations in patients with idiopathic cytopenia of undetermined significance and the usefulness in improving diagnostics. We included 60 patients with persistent cytopenia > 6 months without definite diagnosis of hematological neoplasm after routine assessment.

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Spliceosome mutations are frequently observed in patients with myelodysplastic syndromes (MDS). However, it is largely unknown how these mutations contribute to the disease. MicroRNAs (miRNAs) are small noncoding RNAs, which have been implicated in most human cancers due to their role in post transcriptional gene regulation.

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Myelodysplastic syndrome (MDS) is a heterogeneous group of clonal hematopoietic disorders. MDS is frequently associated with deletions on chromosome 5q as well as aberrant DNA methylation patterns including hypermethylation of key tumor suppressors. We have previously shown that hypermethylation and silencing of the non-coding RNA VTRNA2-1 are correlated with poor outcomes in acute myeloid leukemia patients.

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The hypomethylating agents (HMAs) are standard therapy for patients with higher-risk myelodysplastic syndrome (MDS); however, the majority of the patients will lose their response to HMAs over time due to unknown mechanisms. It has recently been shown that T cell expression of the immunoinhibitory receptor PD-1 is regulated by DNA methylation. In 12 of 27 patients (44%) PD-1 promoter demethylation was observed in sorted peripheral blood T cells isolated over consecutive cycles of treatment with 5-azacytidine (5-aza).

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MiR34A, B and C have been implicated in lymphomagenesis, but information on their role in normal CD19+ B-cells (PBL-B) and de novo diffuse large B-cell lymphoma (DLBCL) is limited. We show that in normal and activated B-cells miR34A-5p plays a dominant role compared to other miR34 family members. Only miR34A-5p is expressed in PBL-B, and significantly induced in activated B-cells and reactive lymph nodes.

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Drugs targeting the epigenome are new promising cancer treatment modalities; however, not all patients receive the same benefit from these drugs. In contrast to conventional chemotherapy, responses may take several months after the initiation of treatment to occur. Accordingly, identification of good pretreatment predictors of response is of great value.

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The tumor suppressor genes MGMT and DAPK1 become methylated in several cancers including diffuse large B-cell lymphoma (DLBCL). However, allelic methylation patterns have not been investigated in DLBCL. We developed a fast and cost-efficient method for the analysis of allelic methylation based on pyrosequencing of methylation specific PCR (MSP) products including a SNP.

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Epigenetics, the study of somatically heritable changes in gene expression not related to changes in the DNA sequence, is a rapidly expanding research field that plays important roles in healthy as well as in diseased cells. DNA methylation and hydroxymethylation are epigenetic modifications found in human cells, which are deeply implicated in normal cellular processes as well as in several major human diseases. Here, a range of different methods for the analyses of DNA methylation and hydroxymethylation at locus-specific and genome-wide scales is described.

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Article Synopsis
  • Deletions of chromosome 5q in acute myeloid leukemia (AML) indicate the potential presence of tumor suppressor genes, but identifying them has been debated.
  • A noncoding RNA called vault RNA2-1 (vtRNA2-1), previously misidentified, may influence AML outcomes, as its methylation status correlates with patient prognosis.
  • Patients lacking vtRNA2-1 methylation have better outcomes, suggesting that the methylation state of this RNA can serve as a predictor for AML prognosis and supports its role as a tumor suppressor.
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Background: Patients with chromosome 5 abnormalities and high-risk myelodysplastic syndromes or acute myeloid leukemia have a poor outcome. We hypothesized that increasing doses of lenalidomide may benefit this group of patients by inhibiting the tumor clone, as assessed by fluorescence in situ hybridization for del(5q31).

Design And Methods: Twenty-eight patients at diagnosis or with relapsed disease and not eligible for standard therapy (16 with acute myeloid leukemia, 12 with intermediate-risk 2 or high-risk myelodysplastic syndrome) were enrolled in this prospective phase II multicenter trial and treated with lenalidomide up to 30 mg daily for 16 weeks.

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Epigenetic silencing of gene transcription by methylation of DNA or modification of histones is a key event in neoplastic initiation and progression. Alterations of the epigenome have been identified in virtually all types of cancer and involve multiple genes and molecular pathways. Recent studies have suggested that epigenetic gene inactivation may represent the first step in tumorigenesis, possibly by affecting the normal differentiation of stem cells and by predisposing these cells to additional oncogenic insults.

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