Sign in to use this feature.

Years

Between: -

Subjects

remove_circle_outline
remove_circle_outline
remove_circle_outline
remove_circle_outline
remove_circle_outline

Journals

Article Types

Countries / Regions

Search Results (29)

Search Parameters:
Keywords = sepsis-induced cardiomyopathy

Order results
Result details
Results per page
Select all
Export citation of selected articles as:
18 pages, 3196 KB  
Article
Genomic Structural Equation Modeling Reveals Shared Genetic Architecture and Pleiotropic Hub Genes of Sepsis-Induced Cardiomyopathy
by Min Fang, Bin Zhou, Peng Yu, Xiang Long and Min Shao
Genes 2026, 17(7), 751; https://doi.org/10.3390/genes17070751 - 30 Jun 2026
Viewed by 113
Abstract
Background: Sepsis-induced cardiomyopathy (SICM) is a life-threatening complication driven by inflammatory cascades. Current genetic studies are restricted to single-trait analyses that cannot capture the shared genetic architecture spanning from immune dysregulation to structural myocardial damage. Methods: We applied genomic structural equation modeling to [...] Read more.
Background: Sepsis-induced cardiomyopathy (SICM) is a life-threatening complication driven by inflammatory cascades. Current genetic studies are restricted to single-trait analyses that cannot capture the shared genetic architecture spanning from immune dysregulation to structural myocardial damage. Methods: We applied genomic structural equation modeling to integrate genome-wide association study (GWAS) summary statistics for six phenotypes—sepsis, cardiac troponin I, left ventricular ejection fraction (LVEF), left ventricular diastolic strain rate, right ventricular peak ejection rate, and heart failure—constructing a latent factor for the shared genetic basis of SICM-related phenotypes. Downstream analyses included multivariate GWAS, fine-mapping (SuSiE/FINEMAP), sparse canonical correlation analysis-based transcriptome-wide association study (sCCA-TWAS) with FOCUS prioritization, MAGMA gene-set enrichment, cell-type enrichment (CELLECT), spatial transcriptomic mapping (gsMap), and stratified LD score regression (S-LDSC). Results: The model showed adequate fit (CFI = 0.936), with left ventricular diastolic strain rate and LVEF anchoring the factor most strongly (λ = 0.811 and 0.636, respectively). Multivariate GWAS identified 4220 lead variants, of which 4197 did not reach genome-wide significance in any constituent single-trait GWAS. Cross-referencing sCCA-TWAS with FOCUS fine-mapping prioritized 39 genes spanning inflammatory transduction, gap junction remodeling, proteostatic defense, and energy sensing. AMPK signaling was recurrently captured across fine-mapping and transcriptome-wide analyses. CELLECT identified cardiac muscle cells as the sole significant cell type. Conclusions: This study provides the first integrative multi-trait genetic framework for the shared genetic basis of SICM-related phenotypes, identifying AMPK as a recurrently captured pleiotropic hub at the inflammation–metabolism intersection and providing a foundation for future biomarker and mechanistic investigations. Full article
(This article belongs to the Special Issue Feature Papers: Molecular Genetics and Genomics 2026)
Show Figures

Figure 1

14 pages, 2640 KB  
Article
Phenotypes and Outcomes of Heart Failure First Diagnosed During Sepsis: A Single-Center Retrospective Cohort Study Using ICD-10-Based Subtype Classification
by Arun Gajan Pradeep, Zaineb Zubair, Kaiyu Jia, Mohamad Bahij Moumneh, Mohammad Ennab, Omar Khayat, Ahmed A. Zayed and Martin Miguel I. Amor
J. Clin. Med. 2026, 15(11), 4252; https://doi.org/10.3390/jcm15114252 - 31 May 2026
Viewed by 450
Abstract
Background: Sepsis-associated cardiac dysfunction has historically been characterized as predominantly systolic, yet the burden of heart failure with the preserved ejection fraction (HFpEF) phenotype among patients with heart failure (HF) first documented during sepsis remains poorly defined. Methods: In a single-center retrospective cohort [...] Read more.
Background: Sepsis-associated cardiac dysfunction has historically been characterized as predominantly systolic, yet the burden of heart failure with the preserved ejection fraction (HFpEF) phenotype among patients with heart failure (HF) first documented during sepsis remains poorly defined. Methods: In a single-center retrospective cohort of adults (≥18 years) admitted to a tertiary-care hospital between 1 January 2022 and 31 December 2024, we identified patients whose first sepsis diagnosis (ICD-10) coincided with their first HF diagnosis (ICD-10 I50.x) during the same encounter, with no prior HF in the EHR. Patients were classified by ICD-10 subtype as HFpEF, HFrEF, combined, or unspecified; the unspecified group underwent echocardiographic reclassification when LVEF was documented. Demographics, selected comorbidities, peak inflammatory markers, and unadjusted in-hospital and subsequent-encounter outcomes were compared between HFpEF and HFrEF. Results: Of 924 patients with HF first documented during sepsis, 438 (47.4%) were ICD-10–coded HFpEF and 405 (43.8%) HFrEF. HFpEF patients were older (74.0 vs. 69.2 years; p < 0.001) and more often female (53.0% vs. 37.0%; p < 0.001), with higher prevalence of COPD exacerbation (21.5% vs. 13.1%; p = 0.004) and hypothyroidism (26.3% vs. 17.5%; p = 0.034). HFrEF patients exhibited higher peak lactate (2.88 vs. 2.48 mmol/L; p = 0.009) and procalcitonin (8.52 vs. 7.24 ng/mL; p = 0.011). Unadjusted in-hospital mortality (28.1% vs. 27.7%; p = 0.95), ICU admission (75.8% vs. 74.8%; p = 0.80), and length of stay did not differ. Subsequent encounters were descriptively more frequent after HFpEF (11.0% vs. 6.2%). Conclusions: ICD-10–coded HFpEF and HFrEF occurred at nearly equal frequency among adults with HF first documented during sepsis, challenging the systolic-centric paradigm. Despite distinct demographic and biochemical profiles, unadjusted in-hospital outcomes did not differ. These descriptive findings, limited by administrative-coding-based phenotype classification, the absence of multivariable adjustment, and unmeasured sepsis-severity and comorbidity variables, are hypothesis-generating and support phenotype-aware prospective study of HF arising during sepsis. Full article
(This article belongs to the Section Cardiology)
Show Figures

Figure 1

22 pages, 1985 KB  
Review
PPARα: Linking Cardiac Metabolism to Therapeutic Opportunities in Cardiovascular Diseases
by Maxime Roes, Claude Libert and Jolien Vandewalle
Cells 2026, 15(10), 940; https://doi.org/10.3390/cells15100940 - 20 May 2026
Viewed by 647
Abstract
Peroxisome proliferator-activated receptor alpha (PPARα) is a key transcriptional regulator of lipid metabolism, highly expressed in metabolically active organs such as the heart. In cardiomyocytes, where approximately 70% of energy is derived from fatty acid oxidation, PPARα plays a central role in maintaining [...] Read more.
Peroxisome proliferator-activated receptor alpha (PPARα) is a key transcriptional regulator of lipid metabolism, highly expressed in metabolically active organs such as the heart. In cardiomyocytes, where approximately 70% of energy is derived from fatty acid oxidation, PPARα plays a central role in maintaining metabolic homeostasis. Moreover, the transcription factor is implicated in postnatal maturation of the heart and immune modulation. Dysregulation of PPARα signaling has profound consequences for cardiac energy balance, particularly under stress conditions. Accordingly, its role has been extensively investigated in cardiovascular diseases, including ischemia/reperfusion, diabetic cardiomyopathy and sepsis-induced cardiomyopathy. Upon ischemia/reperfusion and sepsis, cardiac PPARα expression is typically downregulated, contributing to impaired fatty acid breakdown and reduced metabolic flexibility. In contrast, diabetic cardiomyopathy is characterized by sustained PPARα activation, promoting excessive fatty acid oxidation, lipid accumulation and lipotoxicity. These context-dependent effects highlight a complex role of PPARα in cardiac diseases. PPARα has emerged as a promising therapeutic target, as its modulation can alleviate cardiac injury in preclinical models. However, further research is required to validate its efficacy in human disease, improve cardiomyocyte-specific targeting strategies to minimize systemic side effects, and better define optimal timing of intervention, as inappropriate or prolonged modulation may lead to detrimental outcomes. Full article
(This article belongs to the Special Issue The Role of PPARs in Disease - Volume IV)
Show Figures

Graphical abstract

15 pages, 1468 KB  
Article
Septic Cardiac Remodeling: A New Concept in Cardiac Dysfunction Induced by Experimental Sepsis
by Nayane Maria Vieira, Letycia Netto de Paula Cunha, Carolina Rodrigues Tonon, Marina Gaiato Monte, Paola da Silva Ballin, Natália Fernanda Ferreira, Dijon Henrique Salomé de Campos, Camila Renata Correa, Gilson Masahiro Murata, Paulo Eduardo Martins Ribolla, Diego Peres Alonso, Taline Lazzarin, Paula Schmidt Azevedo, Bertha Furlan Polegato, Sergio Alberto Rupp de Paiva, Marina Politi Okoshi, Katashi Okoshi, Camila Molina Soares, Maria Cláudia Irigoyen, Marcos Ferreira Minicucci and Leonardo Zornoffadd Show full author list remove Hide full author list
Antioxidants 2026, 15(5), 630; https://doi.org/10.3390/antiox15050630 - 15 May 2026
Viewed by 392
Abstract
Septic cardiomyopathy is recognized as an acute, transient, and reversible condition. However, septic insult may induce latent changes characteristic of cardiac remodeling, with future consequences. Therefore, the present study aimed to evaluate the morphological and functional cardiac changes in the acute and subacute [...] Read more.
Septic cardiomyopathy is recognized as an acute, transient, and reversible condition. However, septic insult may induce latent changes characteristic of cardiac remodeling, with future consequences. Therefore, the present study aimed to evaluate the morphological and functional cardiac changes in the acute and subacute phases (with 7-day follow-up) in male Wistar rats subjected to experimental sepsis using a cecal ligation and puncture (CLP) model. In the acute phase, the animals underwent echocardiographic assessment at baseline and 48 h after the induction of sepsis. In the subacute 7 days follow-up, animals were allocated in control and sepsis groups. After this period, the animals underwent echocardiographic assessment, followed by euthanasia, papillary muscle testing, and subsequent morphometric and biochemical analyses. Fecal samples from six animals per group were collected at baseline and after 7 days for microbiota analysis. In the acute phase, echocardiographic assessment revealed that, following sepsis, animals exhibited reduced systolic function. In the subacute 7 days follow-up, both echocardiogram and papillary muscles revealed cardiac dysfunction in the sepsis group. Cardiomyocyte cross-sectional area and collagen content were significantly greater in the sepsis group compared with that in the control group. Analysis of maximal enzymatic activities involved in cardiac energy metabolism and oxidative stress biomarkers revealed no significant differences between groups. Considering microbiota assessment, beta diversity analysis revealed significant differences between septic animals and controls. In conclusion, sepsis was associated with persistent systolic/diastolic dysfunction, cardiomyocyte hypertrophy, and fibrosis after 7 days. These data suggest that septic cardiomyopathy should not be considered merely an acute, transient, and reversible condition in this experimental context. Full article
Show Figures

Figure 1

19 pages, 8815 KB  
Article
Uncovering the Targets of Pueraria Associated with Programmed Cell Death and the Construction of a Diagnostic Model in Septic Cardiomyopathy
by Fuwei Liu, Jun Luo, Peng Yu and Jianzhong Zhou
Biomedicines 2026, 14(5), 1114; https://doi.org/10.3390/biomedicines14051114 - 14 May 2026
Viewed by 452
Abstract
Background: Septic cardiomyopathy (SCM) is a fatal sepsis-induced dysfunction. While Pueraria (Pue) exhibits protective effects in sepsis, its regulatory role regarding programmed cell death (PCD) in SCM remains unclear. This study aimed to identify Pue’s PCD-related targets in SCM and construct a [...] Read more.
Background: Septic cardiomyopathy (SCM) is a fatal sepsis-induced dysfunction. While Pueraria (Pue) exhibits protective effects in sepsis, its regulatory role regarding programmed cell death (PCD) in SCM remains unclear. This study aimed to identify Pue’s PCD-related targets in SCM and construct a validated diagnostic model. Methods: We analyzed 14 PCD modalities across seven GEO transcriptomic datasets. A robust machine learning framework integrating 171 algorithm combinations built a diagnostic signature. The immune landscape was profiled using single-cell RNA sequencing and enrichment analyses. Experimental validation utilized SCM patient blood samples and heart tissues from an LPS-induced murine model. Results: Nine PCD patterns were significantly altered in SCM. Intersection analysis and machine learning identified five core Pue targets: STAT3, RIPK2, GM2A, ALOX5, and DPP4. A diagnostic model constructed with these genes achieved high AUCs across all datasets. Single-cell analysis revealed cell-type-specific expression within the myocardial immune landscape. Differential expression of these five genes was validated in both human and animal samples, correlating significantly with cardiac function indices. Conclusions: Our results demonstrate that Pueraria mitigates SCM and restores cardiac function by modulating the expression of core PCD-related targets. These targets are closely associated with the localized inflammatory response, providing potential therapeutic avenues for SCM. Full article
Show Figures

Figure 1

22 pages, 1119 KB  
Review
Septic Cardiomyopathy: Age-Dependent Physiology and Hemodynamic Aspects—A Narrative Review
by Marianna Miliaraki, George Briassoulis, Evangelia Dardamani, Panagiotis Briassoulis and Stavroula Ilia
Children 2026, 13(2), 239; https://doi.org/10.3390/children13020239 - 8 Feb 2026
Cited by 1 | Viewed by 2323
Abstract
Background: Septic cardiomyopathy (SCM) is a dynamic and heterogeneous complication of sepsis, driven by systemic inflammation, autonomic dysregulation, and microcirculatory alterations. Pediatric and adult patients share common pathophysiologic mechanisms, but age-dependent differences in cardiovascular physiology produce distinct hemodynamic responses. Methods: A structured narrative [...] Read more.
Background: Septic cardiomyopathy (SCM) is a dynamic and heterogeneous complication of sepsis, driven by systemic inflammation, autonomic dysregulation, and microcirculatory alterations. Pediatric and adult patients share common pathophysiologic mechanisms, but age-dependent differences in cardiovascular physiology produce distinct hemodynamic responses. Methods: A structured narrative review of clinical and experimental studies published between 2000 and 2025 was conducted via PubMed and major critical care literature. Studies were included if they addressed SCM pathophysiology, hemodynamic monitoring, and therapeutic strategies across age groups, while studies focusing on non-septic cardiac dysfunction were excluded. Results: Adult SCM often presents as hyperdynamic, vasoplegic states, whereas pediatric patients more frequently exhibit hypodynamic profiles, reflecting developmental differences in myocardial reserve and autonomic regulation. Evidence suggests that isolated conventional echocardiographic parameters may underestimate myocardial impairment, whereas advanced modalities, including myocardial strain echocardiography and multimodal hemodynamic monitoring, may serve as complementary tools to detect subtle or evolving myocardial dysfunction. Pediatric evidence remains limited, and therapeutic guidance is largely extrapolated from adult studies. Conclusions: SCM should be approached as a time-dependent, physiology-driven condition, requiring repeated, integrated multimodal cardiovascular assessment to guide individualized management. Age-specific hemodynamic profiles highlight the need for standardized diagnostics, prospective validation of monitoring tools, and phenotype-guided interventions to improve outcomes in both adult and pediatric sepsis. Full article
(This article belongs to the Special Issue Addressing Challenges in Pediatric Critical Care Medicine)
Show Figures

Figure 1

22 pages, 950 KB  
Review
Factor XII—A New Therapeutic Target? A Systematic Review
by Katarzyna Krajewska, Joanna Pawlus, Katarzyna Ptaszynska and Anna Lisowska
Int. J. Mol. Sci. 2026, 27(3), 1331; https://doi.org/10.3390/ijms27031331 - 29 Jan 2026
Cited by 1 | Viewed by 1325
Abstract
Factor XII is a molecule of unclear physiological function that has attracted increasing research interest across multiple medical disciplines. In recent years, a substantial body of evidence has emerged regarding the contribution of factor XII to the pathogenesis of inflammatory and prothrombotic conditions. [...] Read more.
Factor XII is a molecule of unclear physiological function that has attracted increasing research interest across multiple medical disciplines. In recent years, a substantial body of evidence has emerged regarding the contribution of factor XII to the pathogenesis of inflammatory and prothrombotic conditions. FXII has been shown to play a protective role in FXII-driven coagulation during host defence against infections and to protect against multi-organ failure in animal models of sepsis. In acute respiratory distress syndrome (ARDS), FXII activity contributes to the release of pro-inflammatory mediators and is associated with severe clinical outcomes; it also induces fibroblast migration in idiopathic pulmonary fibrosis. FXII deficiency has been associated with reduced neutrophil adhesion and migration in sterile skin wounds and immune complex-induced vasculitis. In neurological conditions, FXII deficiency significantly reduced the number and severity of multiple sclerosis relapses and decreased the volume of post-traumatic brain oedema. In heart failure pathogenesis, FXII deficiency and pharmacological inhibition of FXII activity blocked activation of the renin–angiotensin–aldosterone system (RAAS) in dilated cardiomyopathy, increased median survival, and delayed heart failure onset in murine models. Importantly, FXII inhibition prevented arterial thrombosis without affecting haemostasis. This review summarises the latest findings on the contribution of FXII to inflammatory and prothrombotic states across multiple medical fields, including cardiology. Pharmacological inhibition of FXII has generated considerable interest as a potential future therapeutic strategy; however, to date, human studies remain limited. Full article
(This article belongs to the Section Molecular Pathology, Diagnostics, and Therapeutics)
Show Figures

Figure 1

31 pages, 1993 KB  
Review
Sepsis-Induced Cardiomyopathy and Cardiac Arrhythmias: Pathophysiology and Implications for Novel Therapeutic Approaches
by Konstantinos Pamporis, Paschalis Karakasis, Antonia Pantelidaki, Panagiotis Antonios Goutis, Konstantinos Grigoriou, Panagiotis Theofilis, Athanasia Katsaouni, Michail Botis, Aikaterini-Eleftheria Karanikola, Nikias Milaras, Konstantinos Vlachos, Dimitrios Tsiachris, Constantinos Pantos and Iordanis Mourouzis
Biomedicines 2025, 13(11), 2643; https://doi.org/10.3390/biomedicines13112643 - 28 Oct 2025
Cited by 13 | Viewed by 7566
Abstract
In the context of multi-organ involvement in sepsis, cardiac toxicity is manifested as sepsis-induced cardiomyopathy (SICM). To date, no unified SICM definition exists, though a left ventricular ejection fraction ≤ 50% and/or an absolute drop ≥ 10% from baseline are the most widely [...] Read more.
In the context of multi-organ involvement in sepsis, cardiac toxicity is manifested as sepsis-induced cardiomyopathy (SICM). To date, no unified SICM definition exists, though a left ventricular ejection fraction ≤ 50% and/or an absolute drop ≥ 10% from baseline are the most widely accepted components. Several molecular pathways have been associated with SICM, including (i) pro-inflammatory mediator-induced cardiac depression; (ii) sarcolemmal membrane dysfunction; (iii) autonomic nervous system (ANS) imbalance; (iv) blunted cardiovascular response to catecholamines; (v) dysfunctional intracellular calcium handling; (vi) mitochondrial dysfunction; (vii) metabolic reprogramming; and (viii) disturbed endothelial and microcirculatory function. Atrial and ventricular arrhythmias—particularly atrial fibrillation—commonly complicate disease management and are associated with adverse outcomes. Key mechanisms outlining sepsis-induced arrhythmogenesis are (i) inflammation; (ii) electrolyte imbalances; (iii) myocardial ischemia; (iv) QT prolongation/dispersion; (v) adrenergic overactivation; (vi) calcium mishandling; and (vii) fever-induced arrhythmogenesis in Brugada. Established therapeutic approaches include prompt treatment with antibiotics, hemodynamic optimization, and/or selective use of beta-blockers. Furthermore, several molecules are currently being investigated targeting numerous pathways activated in sepsis. Vitamin C, ginsenoside Rc, Schistosoma Japonicum cystatin, and gasmerdin-D inhibitor Y2 exert anti-inflammatory actions, while melatonin and α-ketoglutarate regulate mitochondrial homeostasis. Triiodothyronine targets microcirculatory optimization and regulates protective pathways against stress-related cell death. Engineered exosomes may facilitate targeted drug delivery, inflammatory response modulation, and activation of pathways related to cell survival, while sodium octanoate exhibits anti-inflammatory actions coupled with improved energy metabolism. Finally, gene-regulating therapies aiming at inflammatory response optimization have also been proposed and are currently under development. Future research should aim to standardize the SICM definition, translate emerging therapeutics into clinical practice, identify novel molecular targets, and implement personalized treatment strategies for SICM. Full article
Show Figures

Figure 1

11 pages, 727 KB  
Article
Laboratory and Microbiological Considerations in Sepsis-Induced Cardiac Dysfunction
by Catalina Paraschiv, Denisa Oana Nicolaescu, Mihaela Roxana Popescu, Carmen Cristina Vasile, Emanuel Moisa, Silvius Ioan Negoita and Serban Mihai Balanescu
Medicina 2025, 61(10), 1765; https://doi.org/10.3390/medicina61101765 - 30 Sep 2025
Cited by 1 | Viewed by 1390
Abstract
Introduction: Sepsis-induced cardiac dysfunction (SICD) is a transient cardiac disfunction, with variable described prevalence and uncertain prognostic. This study aimed to characterize the laboratory and microbiological findings in critically ill patients with sepsis who developed left ventricular (LV) or biventricular systolic dysfunction. [...] Read more.
Introduction: Sepsis-induced cardiac dysfunction (SICD) is a transient cardiac disfunction, with variable described prevalence and uncertain prognostic. This study aimed to characterize the laboratory and microbiological findings in critically ill patients with sepsis who developed left ventricular (LV) or biventricular systolic dysfunction. Methods: Patients who required intensive care unit hospitalization for sepsis were screened retrospectively. Only patients with positive cultures and echocardiography performed within 24 h from admission were included. The exclusion criteria were infective endocarditis, acute coronary syndrome, history of cardiomyopathy, severe valve disease, end-stage organ or oncological disease. Cardiac function was appreciated on transthoracic echocardiography, using LV ejection fraction for the left ventricle and tricuspid annular plane systolic excursion (TAPSE) for the right ventricle. SICD was confirmed if the systolic dysfunction found upon admission was reversible within 7–10 days. Results: A total of 100 patients with positive cultures were included. The median age was 73 and 55% were male. SICD was diagnosed in 14% of patients. Patients with SICD were more likely to develop septic shock and had longer hospital and intensive care unit stay. In-hospital mortality was 44% with no significant difference between SICD and non-SICD patients. Laboratory markers upon hospital admission showed that SICD patients had significantly higher values of lactate and transaminases. Cardiac (troponin and NT-proBNP) and inflammation markers (leukocytes, neutrophils, NLR, C-reactive protein, procalcitonin) had higher values in patients with SICD but the difference did not reach statistical significance. Streptococcal infections and polymicrobial cultures were risk factors for developing SICD. Higher rates of infections with Enterobacterales were seen in the SICD group but the difference was not significant. Conclusions: SICD patients had higher lactate, inflammation, and cardiac biomarkers levels upon admission and significantly higher rates of streptococcal infections and polymicrobial cultures. Full article
Show Figures

Graphical abstract

20 pages, 38763 KB  
Article
Empagliflozin Preserves Cardiomyocyte Structural Homeostasis via the Stabilization of the Integrin α5–Desmocollin-2 Adhesion Axis in Sepsis-Induced Cardiomyopathy
by Gan Qiao, Yongxiang Lu, Jianping Wu, Chunyang Ren, Minghua Liu, Sicheng Liang and Chunxiang Zhang
Cells 2025, 14(18), 1452; https://doi.org/10.3390/cells14181452 - 16 Sep 2025
Cited by 2 | Viewed by 1807
Abstract
Sepsis-induced cardiomyopathy is a life-threatening complication lacking targeted therapies. While empagliflozin (Empa), a sodium-glucose cotransporter 2 (SGLT2) inhibitor, confers robust cardioprotection, its specific efficacy in treating sepsis-induced cardiomyopathy and the Empa mechanisms remain poorly defined, limiting its targeted therapeutic use. In this study, [...] Read more.
Sepsis-induced cardiomyopathy is a life-threatening complication lacking targeted therapies. While empagliflozin (Empa), a sodium-glucose cotransporter 2 (SGLT2) inhibitor, confers robust cardioprotection, its specific efficacy in treating sepsis-induced cardiomyopathy and the Empa mechanisms remain poorly defined, limiting its targeted therapeutic use. In this study, we investigated Empa’s effects and its novel mechanisms in a murine lipopolysaccharide (LPS)-induced model of septic cardiomyopathy. Empa pre-treatment effectively prevented LPS-induced cardiac dysfunction, preserving ejection fraction and mitigating myocardial injury (assessed by histology and ELISA) and fibrosis. Transcriptomic analysis revealed that Empa’s protective effects were profoundly linked to the preservation of cardiomyocyte cytoskeletal pathways, alongside its anti-inflammatory actions. The results indicate that LPS induced a pathological dissociation of the matrix protein Integrin α5 (ITGA5) from the cell–cell adhesion protein Desmocollin-2 (DSC2), a structural disruption completely abrogated by Empa in vivo. This ITGA5-DSC2 stabilization was further confirmed to be a cardiomyocyte-intrinsic effect, recapitulated in vitro in both neonatal mouse cardiomyocytes and human AC16 cells. Building on this mechanistic insight, a computational design was successfully employed to develop 13 novel helical protein binders specifically targeting the ITGA5, yielding candidates with favorable structural properties as potential therapeutic leads. These findings establish the cardiomyocyte structural homeostasis via the ITGA5-DSC2 adhesion axis as a novel, key SGLT2-independent mechanism for empagliflozin’s cardioprotection, revealing promising new therapeutic approaches for sepsis-induced cardiomyopathy. Full article
(This article belongs to the Special Issue Molecular Pathogenesis of Cardiovascular Diseases)
Show Figures

Graphical abstract

25 pages, 10636 KB  
Article
Qifu Decoction Alleviates Lipopolysaccharide-Induced Myocardial Dysfunction by Inhibiting TLR4/NF-κB/NLRP3 Inflammatory Pathway and Activating PPARα/CPT Pathway
by Lingxin Zhuo, Mingxuan Ma, Jiayi Zhang, Jiayu Zhou, Yuqi Zheng, Aiyin Liang, Qingqing Sun, Jia Liu and Wenting Liao
Pharmaceuticals 2025, 18(8), 1109; https://doi.org/10.3390/ph18081109 - 25 Jul 2025
Cited by 2 | Viewed by 2220
Abstract
Background/Objectives: Sepsis-induced cardiomyopathy (SIC) is a serious clinical disorder with a high death rate. Qifu decoction (QFD) is a renowned traditional Chinese medicine with documented pharmacological actions, such as anti-inflammatory, anti-oxidant and anti-apoptosis activities, and it has good therapeutic effects on cardiovascular [...] Read more.
Background/Objectives: Sepsis-induced cardiomyopathy (SIC) is a serious clinical disorder with a high death rate. Qifu decoction (QFD) is a renowned traditional Chinese medicine with documented pharmacological actions, such as anti-inflammatory, anti-oxidant and anti-apoptosis activities, and it has good therapeutic effects on cardiovascular diseases. This study aimed to reveal the cardioprotective effects and underlying mechanisms of QFD against SIC. Methods: Electrocardiography, histopathological examination, and biochemical indicator determination were carried out to investigate the cardioprotective effects of QFD in the treatment of LPS-induced SIC mice. Metabolomics and network pharmacology strategies were employed to preliminarily analyze and predict the mechanisms of QFD against SIC. Molecular docking and Western blot were further applied to validate the core targets and potential pathways for the treatment of SIC in in vitro and in vivo models. Results: It was found that QFD considerably enhanced cardiac function; attenuated myocardial injury; and reduced the serum levels of LDH, CK-MB, IL-1β, and TNF-α by 28.7%, 32.3%, 38.6%, and 36.7%, respectively. Metabolomic analysis showed that QFD could regulate seven metabolic pathways, namely, glutathione metabolism; alanine, aspartate, and glutamate metabolism; arachidonic acid metabolism; glycerophospholipid metabolism; purine metabolism; sphingolipid metabolism; and fatty acid metabolism. Network pharmacology suggested that the anti-SIC effect of QFD may be mediated through the TNF, toll-like receptor, NOD-like receptor, NF-κB, and PPAR signaling pathways. Additionally, 26 core targets were obtained. Molecular docking revealed that active ingredients such as formononetin, kaempferol, quercetin, and (R)-norcoclaurine in QFD had a high affinity for binding to PPARα and TLR4. Further Western blot validation indicated that QFD could regulate the protein levels of NLRP3, TLR4, NF-κB, IL-6, TNF-α, COX2, sPLA2, PPARα, CPT1B, and CPT2. Conclusions: This study demonstrates that QFD can alleviate SIC by suppressing the TLR4/NF-κB/NLRP3 inflammatory pathway and modulating impaired FAO through the activation of the PPARα/CPT pathway, highlighting QFD as a promising candidate drug for SIC treatment. Full article
(This article belongs to the Section Natural Products)
Show Figures

Graphical abstract

9 pages, 1563 KB  
Case Report
High Profile Transvalvular Pump Assisted Recovery for Takotsubo Cardiomyopathy: A Case Series
by Jordan Young, Patrick McGrade, Jaime Hernandez-Montfort and Jerry Fan
J. Clin. Med. 2025, 14(9), 3225; https://doi.org/10.3390/jcm14093225 - 6 May 2025
Viewed by 1358
Abstract
Background: Stress-induced cardiomyopathy (SI-CM) is a transient left ventricular dysfunction triggered by emotional or physical stress, often resolving with supportive care. However, severe cases may progress to cardiogenic shock (CS), requiring mechanical circulatory support (MCS). High-profile transvalvular pumps (HPTP), a form of percutaneous [...] Read more.
Background: Stress-induced cardiomyopathy (SI-CM) is a transient left ventricular dysfunction triggered by emotional or physical stress, often resolving with supportive care. However, severe cases may progress to cardiogenic shock (CS), requiring mechanical circulatory support (MCS). High-profile transvalvular pumps (HPTP), a form of percutaneous ventricular assist device, offer promising hemodynamic support in acute heart failure. This report explores HPTP use in SI-CM-related CS through two complex clinical cases. Case Summary: Two elderly female patients presented with severe CS secondary to apical-variant SI-CM. Case 1 involved a 67-year-old woman with sepsis, colonic perforation, and recurrent SI-CM, leading to profound low-output shock despite multiple vasopressors and inotropes. HPTP was implanted via the axillary artery, allowing for surgical management of intra-abdominal pathology and eventual cardiac recovery. Case 2 featured a 77-year-old woman with multifocal pneumonia, severe mitral regurgitation, and complete heart block. HPTP implantation stabilized her hemodynamics, facilitated extubation, and led to full recovery of ventricular function. Results: Both patients showed marked improvement in cardiac output and systemic perfusion following HPTP insertion. Echocardiograms post-device removal revealed normalization of left ventricular ejection fraction (55–64%). Hemodynamic data confirmed reduced pulmonary capillary wedge pressure and systemic vascular resistance. Conclusion: These cases highlight the potential of HPTP in managing SI-CM-related CS, especially when traditional therapies are inadequate or contraindicated. HPTP can rapidly restore hemodynamic stability and support myocardial recovery. While current data are limited, these observations underscore the need for broader investigation into the role of HPTP in this setting. Full article
Show Figures

Figure 1

26 pages, 1678 KB  
Review
Mitochondria at the Heart of Sepsis: Mechanisms, Metabolism, and Sex Differences
by John Q. Yap, Azadeh Nikouee, Jessie E. Lau, Gabriella Walsh and Qun Sophia Zang
Int. J. Mol. Sci. 2025, 26(9), 4211; https://doi.org/10.3390/ijms26094211 - 29 Apr 2025
Cited by 8 | Viewed by 4961
Abstract
Sepsis is a life-threatening condition that occurs when the body is unable to effectively combat infection, leading to systemic inflammation and multi-organ failure. Interestingly, females exhibit lower sepsis incidence and improved clinical outcomes compared to males. However, the mechanisms underlying these sex-specific differences [...] Read more.
Sepsis is a life-threatening condition that occurs when the body is unable to effectively combat infection, leading to systemic inflammation and multi-organ failure. Interestingly, females exhibit lower sepsis incidence and improved clinical outcomes compared to males. However, the mechanisms underlying these sex-specific differences remain poorly understood. While sex hormones have been a primary focus, emerging evidence suggests that non-hormonal factors also play contributory roles. Despite sex differences in sepsis, clinical management is the same for both males and females, with treatment focused on combating infection using antibiotics and hemodynamic support through fluid therapy. However, even with these interventions, mortality remains high, highlighting the need for more effective and targeted therapeutic strategies. Sepsis-induced cardiomyopathy (SIC) is a key contributor to multi-organ failure and is characterized by left ventricular dilation and impaired cardiac contractility. In this review, we explore sex-specific differences in sepsis and SIC, with a particular focus on mitochondrial metabolism. Mitochondria generate the ATP required for cardiac function through fatty acid and glucose oxidation, and recent studies have revealed distinct metabolic profiles between males and females, which can further differ in the context of sepsis and SIC. Targeting these metabolic pathways could provide new avenues for sepsis treatment. Full article
(This article belongs to the Special Issue Mitochondria as a Core of Cell Signals)
Show Figures

Figure 1

21 pages, 40337 KB  
Article
Integrated Omics Insights into Dapagliflozin Effects in Sepsis-Induced Cardiomyopathy
by Weiwei Lai, Li Liu, Shuhang Wang, Yancun Liu and Yanfen Chai
Biomolecules 2025, 15(2), 286; https://doi.org/10.3390/biom15020286 - 14 Feb 2025
Cited by 6 | Viewed by 3008
Abstract
Background: Sepsis-induced cardiomyopathy (SIC) is a life-threatening cardiac complication of sepsis with limited therapeutic options. Dapagliflozin, a sodium-glucose cotransporter 2 (SGLT2) inhibitor, has demonstrated cardioprotective effects in heart failure, but its role in mitigating sepsis-related cardiac dysfunction remains unclear. Methods: A retrospective cohort [...] Read more.
Background: Sepsis-induced cardiomyopathy (SIC) is a life-threatening cardiac complication of sepsis with limited therapeutic options. Dapagliflozin, a sodium-glucose cotransporter 2 (SGLT2) inhibitor, has demonstrated cardioprotective effects in heart failure, but its role in mitigating sepsis-related cardiac dysfunction remains unclear. Methods: A retrospective cohort analysis was conducted to assess the impact of pre-hospital dapagliflozin use on major adverse cardiovascular events (MACEs) and survival in patients with SIC. Additionally, a murine SIC model was established using cecal ligation and puncture (CLP) to evaluate the effects of dapagliflozin on cardiac function, histopathology, and biomarkers of myocardial injury. Transcriptomic and metabolomic profiling, combined with multi-omics integration, was employed to elucidate the molecular mechanisms underlying dapagliflozin’s cardioprotective effects. Results: In the clinical cohort, pre-hospital dapagliflozin use was associated with a significant reduction in the risk of MACE and improved survival outcomes. In the murine SIC model, dapagliflozin restored cardiac function, reduced biomarkers of myocardial injury, and alleviated histological damage. Multi-omics analysis revealed that dapagliflozin modulates inflammatory responses, enhances autophagy, and regulates metabolic pathways such as AMPK signaling and lipid metabolism. Key regulatory genes and metabolites were identified, providing mechanistic insights into the underlying actions of dapagliflozin. Conclusions: Dapagliflozin significantly improves cardiac outcomes in sepsis-induced cardiomyopathy through the multi-level regulation of inflammation, energy metabolism, and cellular survival pathways. These findings establish dapagliflozin as a promising therapeutic strategy for SIC, offering translational insights into the treatment of sepsis-induced cardiac dysfunction. Full article
(This article belongs to the Section Molecular Medicine)
Show Figures

Figure 1

37 pages, 2637 KB  
Review
Septic Cardiomyopathy: Difficult Definition, Challenging Diagnosis, Unclear Treatment
by George E. Zakynthinos, Grigorios Giamouzis, Andrew Xanthopoulos, Evangelos Oikonomou, Konstantinos Kalogeras, Nikitas Karavidas, Ilias E. Dimeas, Ioannis Gialamas, Maria Ioanna Gounaridi, Gerasimos Siasos, Manolis Vavuranakis, Epaminondas Zakynthinos and Vasiliki Tsolaki
J. Clin. Med. 2025, 14(3), 986; https://doi.org/10.3390/jcm14030986 - 4 Feb 2025
Cited by 22 | Viewed by 18161
Abstract
Sepsis is a systemic inflammatory response syndrome of suspected or confirmed infectious origin, which frequently culminates in multiorgan failure, including cardiac involvement. Septic cardiomyopathy (SCM) remains a poorly defined clinical entity, lacking a formal or consensus definition and representing a significant knowledge gap [...] Read more.
Sepsis is a systemic inflammatory response syndrome of suspected or confirmed infectious origin, which frequently culminates in multiorgan failure, including cardiac involvement. Septic cardiomyopathy (SCM) remains a poorly defined clinical entity, lacking a formal or consensus definition and representing a significant knowledge gap in critical care medicine. It is an often-underdiagnosed complication of sepsis. The only widely accepted aspect of its definition is that SCM is a transient myocardial dysfunction occurring in patients with sepsis, which cannot be attributed to ischemia or pre-existing cardiac disease. The pathogenesis of SCM appears to be multifactorial, involving inflammatory cytokines, overproduction of nitric oxide, mitochondrial dysfunction, calcium homeostasis dysregulation, autonomic imbalance, and myocardial edema. Diagnosis primarily relies on echocardiography, with advanced tools such as tissue Doppler imaging (TDI) and global longitudinal strain (GLS) providing greater sensitivity for detecting subclinical dysfunction and guiding therapeutic decisions. Traditional echocardiographic findings, such as left ventricular ejection fraction measured by 2D echocardiography, often reflect systemic vasoplegia rather than intrinsic myocardial dysfunction, complicating accurate diagnosis. Right ventricular (RV) dysfunction, identified as a critical component of SCM in many studies, has multifactorial pathophysiology. Factors including septic cardiomyopathy itself, mechanical ventilation, hypoxemia, and hypercapnia—particularly in cases complicated by acute respiratory distress syndrome (ARDS)—increase RV afterload and exacerbate RV dysfunction. The prognostic value of cardiac biomarkers, such as troponins and natriuretic peptides, remains uncertain, as these markers primarily reflect illness severity rather than being specific to SCM. Treatment focuses on the early recognition of sepsis, hemodynamic optimization, and etiological interventions, as no targeted therapies currently exist. Emerging therapies, such as levosimendan and VA-ECMO, show potential in severe SCM cases, though further validation is needed. The lack of standardized diagnostic criteria, combined with the heterogeneity of sepsis presentations, poses significant challenges to the effective management of SCM. Future research should focus on developing cluster-based classification systems for septic shock patients by integrating biomarkers, echocardiographic findings, and clinical parameters. These advancements could clarify the underlying pathophysiology and enable tailored therapeutic strategies to improve outcomes for SCM patients. Full article
(This article belongs to the Section Cardiology)
Show Figures

Figure 1

Back to TopTop