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The role of inflammatory cytokines in children with moderate to severe TBI (m-sTBI) is still incompletely understood. We aimed to investigate the associations between early plasma expression profiles of inflammatory cytokines and clinical outcomes in children with m-sTBI. We prospectively recruited children admitted to the intensive care unit (ICU) of a tertiary pediatric hospital due to m-sTBI from November 2022 to May 2023. Plasma interleukin (IL)-1ß, IL-2, IL-4, IL-5, IL-6, IL-8, IL-10, IL-12p70, IL-17A, interferon (IFN)-α, IFN-γ and tumor necrosis factor (TNF)-α concentrations were detected by flow cytometry on admission and on days 5 to 7. The primary outcome was in-hospital mortality. The secondary outcome was the 6-month functional outcome assessed by the Glasgow Outcome Scale Extended-Pediatrics (GOS-E Peds) score, dichotomized as favorable (1-4) or unfavorable (5-8). Fifty patients and 20 healthy controls were enrolled. Baseline IL-6, IL-8 and IL-10 levels were significantly higher in TBI patients than in healthy controls. Twelve patients died in the hospital. Compared with survivors, nonsurvivors had significantly increased baseline IL-6 and IL-8 levels. Baseline IL-5, IL-6 and IL-8 levels were also significantly greater in children with unfavorable versus favorable outcomes. The area under the receiver operating characteristic curve (AUC) of the IL-6 and IL-8 levels and motor Glasgow Coma Scale (GCS) score for predicting in-hospital mortality was 0.706, 0.754, and 0.776, respectively. Baseline IL-1ß, IL-2, IL-4, IL-10, IL-12p70, IL-17A, IFN-γ, IFN-α and TNF-α levels were not associated with in-hospital mortality or an unfavorable 6-month outcome. On days 5 to 7, the IL-6 and IL-8 levels were significantly decreased in survivors but increased in nonsurvivors compared to their respective baselines. CONCLUSION: After m-sTBI, the plasma profiles of inflammatory cytokines are markedly altered in children. The trends of IL-6 and IL-8 expression vary among m-sTBI children with different outcomes. Elevated plasma IL-6 and IL-8 levels are related to in-hospital mortality and unfavorable 6-month outcomes. TRIAL REGISTRATION: This trial was registered in the Chinese Clinical Trial Registry (Registration number: ChiCTR2200065505). Registered November 7, 2022. WHAT IS KNOWN: ⢠Inflammation is an important secondary physiological response to TBI. WHAT IS NEW: ⢠The plasma profiles of inflammatory cytokines are markedly altered in children with m-sTBI. Elevated IL-6 and IL-8 levels are related to mortality and unfavorable outcomes.
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Lesões Encefálicas Traumáticas , Citocinas , Humanos , Masculino , Feminino , Estudos Prospectivos , Criança , Citocinas/sangue , Lesões Encefálicas Traumáticas/sangue , Lesões Encefálicas Traumáticas/mortalidade , Pré-Escolar , Biomarcadores/sangue , Mortalidade Hospitalar , Estudos de Casos e Controles , Adolescente , Prognóstico , Lactente , Escala de Resultado de GlasgowRESUMO
The therapeutic efficacy of intravenous immuneglobulin (IVIG) on children with septic shock remains uncertain. Therefore, we endeavored to investigate the impact of administering intravenous immunoglobulin (IVIG) in the pediatric intensive care unit (PICU) on patient with septic shock. We retrospectively analyzed the data of children admitted to the PICU due to septic shock from January 2017 to December 2021 in a tertiary pediatric hospital. The main outcome was in-hospital mortality. Total 304 patients were enrolled. There were no significant differences in the PRISM-III score (11 vs. 12, P = 0.907), PIM-3 score (0.08 vs. 0.07, P = 0.544), pSOFA score (10 vs. 10, P = 0.852) between the No IVIG group and the IVIG group. Children who received IVIG required more continuous renal replacement therapy (CRRT) support (43% vs. 24%, P = 0.001) and longer duration of mechanical ventilation (MV) (6 vs. 3 days, P = 0.002), and longer length of stay (LOS) of PICU (7 vs. 4 days, P = 0.001) and LOS of hospital (18 vs. 11 days, P = 0.001) than children who did not receive. The 28-day survival analysis (P = 0.033) showed better survival rates in IVIG group, while the in-hospital mortality (43% vs. 52%, P = 0.136) was no significant difference. In the propensity score matched analysis, 71 pairs were established. The length of CRRT (2 vs. 3 days, P = 0.744), duration of mechanical ventilation (5 vs. 4 days, P = 0.402), LOS of PICU (7 vs. 5 days, P = 0.216), LOS of hospital (18 vs. 13 days, P = 0.290), in-hospital mortality (44% vs. 44%, P = 1.000) and 28-day survival analysis (P = 0.748) were not statistically different. After inverse probability weighted analysis, there was still no difference in mortality between the two groups (51% vs. 48%, P = 0.665). CONCLUSION: In children with septic shock, the use of intravenous immunoglobulin as an adjuvant therapy does not reduce in-hospital mortality. WHAT IS KNOWN: ⢠Guidelines suggest against the routine use of intravenous immuneglobulin in children with septic shock. Some small observational studies have reported conflicting result. WHAT IS NEW: ⢠The use of intravenous immunoglobulin as an adjuvant therapy does not reduce in-hospital mortality in children with septic shock.
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Choque Séptico , Humanos , Criança , Choque Séptico/tratamento farmacológico , Imunoglobulinas Intravenosas/uso terapêutico , Estudos Retrospectivos , Unidades de Terapia Intensiva Pediátrica , Pontuação de PropensãoRESUMO
OBJECTIVES: To determine the value of procalcitonin (PCT), high sensitivity C-reactive protein (hs-CRP) and pancreatic stone protein(PSP) in predicting the prognosis of children with sepsis. METHODS: A total of 106 hospitalized children [(4.4±1.6) year-old] with sepsis were enrolled in this study. The expressions of PTC, hs-CRP and PSP in the serum samples of the children were detected on the first day of admission to hospital. Pearson correlation analyses were performed to test the correlations between pediatric critical illness score (PCIS) and PTC, hs-CRP and PSP. Logistic regression models were established to determine factors predicting death of children. The value of PTC, hs-CRP and PSP in predicting the prognosis of children with sepsis was determined using ROC curves. RESULTS: About 32% children (34 cases) died. Higher expressions of PTC, hs-CRP and PSP were found in those who died (P<0.001). Serum PTC, hs-CRP and PSP were negatively correlated with PCIS (P<0.001). The multivariate logistic regression showed that PTC, hs-CRP and PSP were independent predictors of death in patients with sepsis (P<0.001). PTC, hs-CRP and PSP had an area under the curve (AUC) value of 0.86[ (95% confidence interval (CI), 0.78-0.92], 0.70 (95%CI, 0.61-0.79) and 0.69 (95%CI, 0.60-0.78) , respectively.The AUC value increased (P<0.001) to 0.92 (95%CI, 0.85-0.96) when the three indicators were combined (0.481×PCT+0.392×hs-CRP +0.314*PSP), with a value of less than 122.3 indicating good prognosis in 28 d. CONCLUSIONS: Serum PTC, hs-CRP and PSP can predict prognosis of children with sepsis.
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Proteína C-Reativa/análise , Litostatina/sangue , Pró-Calcitonina/sangue , Sepse/diagnóstico , Biomarcadores/sangue , Criança , Pré-Escolar , Humanos , Prognóstico , Curva ROCRESUMO
Objective: To investigate the clinical features, diagnosis and treatment methods and prognosis of retroperitoneal Kaposiform hemangioendothelioma (R-KHE) in children. Methods: The clinical data of an infant with R-KHE was retrospectively analyzed. Literature on R-KHE in pediatrics were retrieved in databases including Wanfang, CNKI and PubMed as of April 2022. Results: A 1 month and 6 days female infant with R-KHE was reported. After the diagnosis was confirmed by biopsy and pathological examination, the patient was treated by interventional embolization, and a combined therapy with glucocorticoid, vincristine, sirolimus and propranolol. The patient has been followed up for 1 year and 2 months, and is still alive with tumor. Through literature search, a total of 15 children, together with the case in our report, were included. The main manifestations were diversity among those patients. 14 cases have combined Kasabach-Merritt phenomenon (KMP). 6 cases accepted surgery plus drug therapy. 4 cases accepted only surgery, and 4 cases only accepted drug therapy. While drug therapy plus radiotherapy were employed to 1 case. Improvement was observed in 11 cases, with significantly reduced tumor and survival with tumor. Tumor disappeared completely in 2 cases. While 2 cases suffered death. Conclusion: R-KHE has diverse clinical presentations and non-specificity in symptoms and imaging examinations, and most cases accompanied with KMP. Methods for R-KHE treatment include surgical resection, interventional embolization and drug therapy. Close attention needs to be paid to the adverse reactions of the drug during the course of treatment.
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Objective: To report and review infantile orbital abscess caused by methicillin-resistant Staphylococcus aureus (MRSA). Methods: We report a case of MRSA-induced infantile orbital abscess accompanied by sepsis, pneumonia, and purulent meningitis. We systematically review cases of MRSA-induced infantile orbital abscess published in PubMed, Web of Science and ScienceDirect until April 2023. Results: We reviewed 14 patients [our patient + 13 patients (10 papers) identified via literature searches]. There were nine boys and five girls; nine neonates and five older infants; and 8 full-term births and 1 preterm birth. The gestational age at birth was unknown for five infants. The right and left orbits were affected in 10 and 4 patients, respectively. The clinical presentation included periorbital soft-tissue edema or redness (11 patients), fever (7 patients), exophthalmos (10 patients), limited eye movement (4 patients), purulent eye secretions (2 patients), and skin abscess and convulsion (1 patient each). The source of infection was sinusitis (8 patients), vertical transmission, gingivitis, dacryocystitis, upper respiratory tract infection (1 patient each), and unknown (2 patients). MRSA was detected in blood (6 patients) or pus culture (8 patients). Vancomycin or linezolid were used for 11 patients; corticosteroids were administered to only 1 patient. Surgical drainage was performed for 13 infants (external drainage, 11 patients; endoscopic drainage, 2 patients). Two patients initially had pulmonary and intracranial infections. Except for one patient with neurological dysfunction at discharge, all other infants had no sequelae or complications. Conclusion: Early aggressive anti-infective treatment and timely drainage are essential for managing MRSA-induced infantile orbital abscess.
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Mean platelet volume (MPV) and platelet distribution width (PDW) are correlated with platelet function and may be a more sensitive index than platelet number as a marker of clinical interest in various disorders. Therefore, this study was designed to answer the following questions: do MPV and PDW levels change in Kawasaki disease (KD), is there any relation between CAL in children with MPV and PDW and whether MPV and PDW might support a diagnosis of incomplete KD. A total of 309 KD patients and 160 sex-age matched healthy subjects were enrolled into the study. For all subjects following tests were performed: MPV, PDW, platelet count, white blood cells counts (WBC), C reactive protein (CRP) and erythrocyte sedimentation rate (ESR). Patients with CALs were assigned to three groups depending on the extent of CALs which were visualized by echocardiography: dilatation and/or ectasia, aneurysm and giant aneurysms. We compared patients with fever and four or five of the principal criteria (complete KD, cKD) to the other patients (iKD). Compared with healthy controls a significant decrease in MPV and PDW (p < 0.001 and p < 0.05, respectively) and increase in WBC, platelet count, CRP and ESR (p all < 0.001) was noted in children with KD. There were no statistically differences in MPV and PDW between KD with CALs and KD without CALs (p > 0.05). However, MPV and PDW were significantly lower in patients with iKD than in group with cKD (p = 0.003, p = 0.014, respectively). It was first shown that patients with KD have lower MPV and PDW than control subjects. The diagnosis of iKD is challenging but can be supported by the presence of lower MPV and PDW.
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Plaquetas/patologia , Vasos Coronários/diagnóstico por imagem , Síndrome de Linfonodos Mucocutâneos/sangue , Síndrome de Linfonodos Mucocutâneos/diagnóstico por imagem , Plaquetas/metabolismo , Sedimentação Sanguínea , Tamanho Celular , Pré-Escolar , Ecocardiografia/métodos , Feminino , Humanos , Lactente , Contagem de Leucócitos , Masculino , Contagem de Plaquetas , Estudos RetrospectivosRESUMO
Asparagine-linked glycosylation 13 (ALG13) is an X-linked gene that encodes a protein involved in the glycosylation of the N-terminus. ALG13 deficiency leads to ALG13-congenital disorders of glycosylation (ALG13-CDG), usually in females presenting with mental retardation and epilepsy. Cognitive function is an important function of the hippocampus, and forms the basis for learning, memory and social abilities. However, researchers have not yet investigated the effect of ALG13 on hippocampal cognitive function. In this study, the exploration, learning, memory and social abilities of ALG13 knockout (KO) female mice were decreased in behavioral experiments. Golgi staining demonstrated a decrease in the complexity of hippocampal neurons. Western blot and immunofluorescence staining of the synaptic plasticity factors postsynaptic density protein 95 (PSD95) and synaptophysin (SYP) displayed varying degrees of decline. In other words, the KO of ALG13 may have reduced the expression of PSD95 and SYP in the hippocampus of female mice. Moreover, it may have lowered the synaptic plasticity in various areas of the hippocampus, thus resulting in decreased dendrite length, complexity, and dendrite spine density, which affected the hippocampal function and reduced the cognitive function in female mice.
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Hipocampo , Neurônios , Animais , Feminino , Camundongos , Cognição/fisiologia , Espinhas Dendríticas , Proteína 4 Homóloga a Disks-Large/metabolismo , Hipocampo/metabolismo , Camundongos Knockout , Plasticidade Neuronal , Neurônios/metabolismoRESUMO
Mutations in the GABRG2 gene encoding the γ-aminobutyric acid (GABA) A receptor gamma 2 subunit are associated with genetic epilepsy with febrile seizures plus, febrile seizures plus, febrile seizures, and other symptoms of epilepsy. However, the mechanisms underlying Gabrg2-mediated febrile seizures are poorly understood. Here, we used the Cre/loxP system to generate conditional knockout (CKO) mice with deficient Gabrg2 in the hippocampus and neocortex. Heterozygous CKO mice (Gabrg2fl/wtCre+) exhibited temperature-dependent myoclonic jerks, generalised tonic-clonic seizures, increased anxiety-like symptoms, and a predisposition to induce seizures. Cortical electroencephalography showed the hyperexcitability in response to temperature elevation in Gabrg2fl/wtCre+ mice, but not in wild-type mice. Gabrg2fl/wtCre+ mice exhibited spontaneous seizures and susceptibility to temperature-induced seizures. Loss of neurons were observed in cortical layers V-VI and hippocampus of Gabrg2fl/wtCre+ mice. Furthermore, the latency of temperature- or pentylenetetrazol-induced seizures were significantly decreased in Gabrg2fl/wtCre+ mice compared with wild-type mice. In summary, Gabrg2fl/wtCre+ mice with Gabrg2 deletion in the neocortex and hippocampus reproduce many features of febrile seizures and therefore provide a novel model to further understand this syndrome at the cellular and molecular level.
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Receptores de GABA-A/metabolismo , Convulsões Febris/genética , Convulsões/genética , Animais , Humanos , Masculino , Camundongos , Mutação , Neocórtex , Convulsões/fisiopatologia , Convulsões Febris/fisiopatologia , TemperaturaRESUMO
ALG13 (asparagine-linked glycosylation 13) plays crucial roles in the process of N-linked glycosylation. Mutations of the ALG13 gene underlie congenital disorders of glycosylation type I (CDG-I), a rare human genetic disorder with defective glycosylation. Epilepsy is commonly observed in congenital disorders of glycosylation type I (CDG-I). In our study, we found that about 20% of adult ALG13KO knockout mice display spontaneous seizures, which were identified in a simultaneous video and intracranial EEG recording. However, the mechanisms of ALG13 by which deficiency leads to epilepsy are unknown. Whole-cell patch-clamp recordings demonstrated that ALG13KO mice show a marked decrease in gamma-aminobutyric acid A receptor (GABAAR)-mediated inhibitory synaptic transmission. Furthermore, treatment with low-dose diazepam (a positive allosteric modulator of GABAA receptors), which enhances GABAAR function, also markedly ameliorates severity of epileptic seizures in ALG13KO mice. Moreover, ALG13 may influenced the expression of GABAARα2 membrane and total protein by changing transcription level of GABAARα2. Furthermore, protein interactions between ALG13 and GABAARα2 were observed in the cortex of wild-type mice. Overall, these results reveal that ALG13 may be involved in the occurrence of epilepsy through the regulation of GABAAR function, and may provide new insight into epilepsy prevention and treatment.
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Dravet syndrome (DS) is a refractory epilepsy typically caused by heterozygous mutations of the Scn1a gene, which encodes the voltage-gated sodium channel Nav1.1. Glucagon-like peptide-1 (GLP-1) analogues, effective therapeutic agents for the treatment of diabetes, have recently become attractive treatment modalities for patients with nervous system disease; however, the impact of GLP-1 analogues on DS remains unknown. This study aimed to determine the neuroprotective role of liraglutide in mouse and cell models of Scn1a KO-induced epilepsy. Epileptic susceptibility, behavioral changes, and behavioral seizures were assessed using electroencephalography (EEG), IntelliCage (TSE Systems, Bad Homburg, Germany), and the open field task. Morphological changes in brain tissues were observed using hematoxylin and eosin (HE) and Nissl staining. Expression of apoptosis-related proteins and the mammalian target of rapamycin (mTOR) signaling pathway were determined using immunofluorescence and western blotting in Scn1a KO-induced epileptic mice in vitro. Scn1a KO model cell proliferation was evaluated using the Cell Counting Kit-8 assay, and the effect of liraglutide on cellular apoptosis levels was examined using Annexin V-FITC/PI flow cytometry. Apoptotic signal proteins and mTOR were assessed using reverse transcription - quantitative polymerase chain reaction (RT-qPCR) and western blotting. Our results showed that liraglutide significantly increased mRNA ((0.31 ± 0.04) *10-3 vs. (1.07 ± 0.08) * 10-3, P = 0.0004) and protein (0.10 ± 0.02 vs. 0.27 ± 0.02, P = 0.0006) expression of Scn1a in Scn1a KO-induced epileptic mice. In addition, liraglutide significantly alleviated electroencephalographic seizures, the severity of responses to epileptic seizures (96.53 ± 0.45 % vs. 85.98 ± 1.24 %, P = 0.0003), cognitive dysfunction, and epileptic-related necrotic neurons (9.76 ± 0.91 % vs. 19.65 ± 2.64 %, P = 0.0005) in Scn1a KO-induced epileptic mice. Moreover, liraglutide protected against Scn1a KO-induced apoptosis, which was manifested in the phosphorylation of mTOR (KO+NS: 1.99 ± 0.31 vs. KO+Lira: 0.97 ± 0.18, P = 0.0004), as well as the downregulation of cleaved caspase-3 (KO+NS: 0.49 ± 0.04 vs. KO+Lira: 0.30 ± 0.01, P = 0.0003) and restoration of the imbalance between BAX (KO+NS: 0.90 ± 0.02 vs. KO+Lira: 0.75 ± 0.04, P = 0.0005) and BCL-2 (KO+NS: 0.46 ± 0.02 vs. KO+Lira: 0.61 ± 0.02, P = 0.0006). Collectively, these results show that liraglutide reduces seizure susceptibility and cognitive dysfunction in the mouse model of Dravet syndrome, and exerts anti-apoptotic and neuroprotective effects in Scn1a KO mice and cells.
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IMPORTANCE: Ventilator-associated pneumonia (VAP) is one of the most common complications after cardiac surgery in children with congenital heart disease (CHD). Early prediction of the incidence of VAP is important for clinical prevention and treatment. OBJECTIVE: To determine the value of serum C-reactive protein (CRP) levels and the Pediatric Risk of Mortality III (PRISM III) score in predicting the risk of postoperative VAP in pediatric patients with CHD. METHODS: We performed a retrospective review of clinical data of 481 pediatric patients with CHD who were admitted to our pediatric intensive care unit. These patients received mechanical ventilation for 48 hours or longer after corrective surgery. On the basis of their clinical manifestations and laboratory results, patients were separated into two groups of those with VAP and those without VAP. CRP levels were measured and PRISM III scores were collected within 12 hours of admission to the pediatric intensive care unit. The Pearson correlation coefficient was used to evaluate the association of CRP levels and the PRISM score with the occurrence of postoperative VAP. A linear regression model was constructed to obtain a joint function and receiver operating curves were used to assess the predictive value. RESULTS: CRP levels and the PRISM III score in the VAP group were significantly higher than those in the non-VAP group (P < 0.05). Receiver operating curves suggested that using CRP + the PRISM III score to predict the incidence of VAP after congenial heart surgery was more accurate than using either of them alone (CRP + the PRISM III score: sensitivity: 53.2%, specificity: 85.7%). When CRP + the PRISM III score was greater than 45.460, patients were more likely to have VAP. INTERPRETATION: Although using CRP levels plus the PRISM III score to predict the incidence of VAP after congenial heart surgery is more accurate than using either of them alone, its predictive value is still limited.
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ALG13 (asparagine-linked glycosylation 13 homolog) encodes a crucial protein involved in the process of N-linked glycosylation, and abnormal N-linked glycosylation is considered an important risk factor that leads to neurological deficits and disorders. However, the causal relationship between ALG13 and epilepsy remains unknown. This study applied a kainic acid (KA)-induced epileptic mouse model to determine whether ALG13 deficiency resulted in increased susceptibility to and severity of epileptic seizures. This report found that the expression of ALG13 in the central nervous system (CNS) had histologically and cellular specificity, mainly in the neurons in the cortex and hippocampus, epilepsy commonly occurs. In addition, KA-induced seizures significantly affected the expression levels of ALG13 mRNA and protein in the forebrain of wild-type (WT) mice. KA-induced epileptic progressions were dramatically increased in Alg13 knockout (KO) mice, including prolonged electrographic seizures, strikingly increased mortality rates, and the severity of responses to epileptic seizures. Furthermore, KA-induced epilepsy-related pathological changes of the brain were predominantly exacerbated in Alg13 KO mice. This study also preliminarily explored the possible mechanisms of ALG13-involved epilepsy by showing hyperactive mTOR signaling pathways in the cortex and hippocampus of Alg13 KO mice. To the best of our knowledge, this report is the first evidence of the association between ALG13 and epilepsy in experimental animals.
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Epilepsia/diagnóstico , Hipocampo/metabolismo , N-Acetilglucosaminiltransferases/metabolismo , Neurônios/metabolismo , Convulsões/diagnóstico , Animais , Modelos Animais de Doenças , Epilepsia/induzido quimicamente , Epilepsia/genética , Epilepsia/metabolismo , Ácido Caínico , Camundongos , Camundongos Knockout , N-Acetilglucosaminiltransferases/genética , Convulsões/induzido quimicamente , Convulsões/genética , Convulsões/metabolismo , Índice de Gravidade de Doença , Transdução de Sinais/fisiologia , Serina-Treonina Quinases TOR/metabolismoRESUMO
Brain inflammation is one of the main causes of epileptogenesis, a chronic process triggered by various insults, including genetic or acquired factors that enhance susceptibility to seizures. Amentoflavone, a naturally occurring biflavonoid compound that has anti-inflammatory effects, exerts neuroprotective effects against nervous system diseases. In the present study, we aimed to investigate the effects of amentoflavone on epilepsy in vivo and in vitro and elucidate the underlying mechanism. The chronic epilepsy model and BV2 microglial cellular inflammation model were established by pentylenetetrazole (PTZ) kindling or lipopolysaccharide (LPS) stimulation. Cognitive dysfunction was tested by Morris water maze while hippocampal neuronal apoptosis was evaluated by immunofluorescence staining. The levels of nucleotide oligomerization domain-like receptor protein 3 (NLRP3) inflammasome complexes and inflammatory cytokines were determined using quantitative real-time polymerase chain reaction, Western blotting, immunofluorescence staining, and enzyme-linked immunosorbent assay. Amentoflavone reduced seizure susceptibility, minimized PTZ-induced cognitive dysfunction, and blocked the apoptosis of hippocampal neurons in PTZ-induced kindling mice. Amentoflavone also inhibited the activation of the NLRP3 inflammasome and decreased the levels of inflammatory cytokines in the hippocampus of PTZ-induced kindling mice. Additionally, amentoflavone could alleviate the LPS-induced inflammatory response by inhibiting the NLRP3 inflammasome in LPS-induced BV2 microglial cells. Our results indicated that amentoflavone affects epileptogenesis and exerts neuroprotective effects by inhibiting the NLRP3 inflammasome and, thus, mediating the inflammatory process in PTZ-induced kindling mice and LPS-induced BV2 microglial cells. Therefore, amentoflavone may be a potential treatment option for epilepsy.