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Biomarker TSPO Full name 18kDa Transporter Protein Molecular Type Protein
Molecular Formula / Molecular Weight / Core Functional Dimensions Diagnosis, Monitoring
Disease(or Constitution) Epilepsy Disease Subtypes Temporal Lobe Epilepsy (TLE)
Organ Brain Test Sample / Technology Platform Brain (PET Imaging)
Pathobiological Mechanisms A specific marker of activated microglia, reflecting the degree of neuroinflammation.
Clinical Availability Status Research validation stage
Notes and Dynamics TSPO PET uptake in the hippocampus of TLE patients is positively correlated with seizure frequency, which can assess disease activity.
Biomarker Abnormal Gut Microbiota (e.g., Decreased Bifidobacterium) Full name Abnormal Gut Microbiota Abundance (e.g., Decreased Bifidobacterium) Molecular Type Microbial Community
Molecular Formula / Molecular Weight / Core Functional Dimensions Risk Stratification, Monitoring
Disease(or Constitution) Epilepsy Disease Subtypes Gut Microbiota-Associated Epilepsy
Organ Brain Test Sample / Technology Platform Feces (16S rRNA Sequencing, Metagenomic Sequencing)
Pathobiological Mechanisms Imbalance of gut microbiota metabolites (e.g., short-chain fatty acids) regulates neuroinflammation and excitability through the gut-brain axis.
Clinical Availability Status Research stage
Notes and Dynamics Probiotic intervention can improve seizure frequency in some patients; Bifidobacterium preparations have entered clinical phase I.
Biomarker PEDs (EEG) Full name Electroencephalographic Periodic Discharges Molecular Type Electrophysiological Pattern
Molecular Formula / Molecular Weight / Core Functional Dimensions Diagnosis, Prognosis
Disease(or Constitution) Epilepsy Disease Subtypes Status Epilepticus (SE)
Organ Brain Test Sample / Technology Platform Scalp/Intracranial (Video EEG Monitoring)
Pathobiological Mechanisms Abnormal discharge pattern after extensive intracerebral neuronal injury, indicating severe brain dysfunction.
Clinical Availability Status Clinically available
Notes and Dynamics When the frequency of PEDs > 2Hz, the risk of poor prognosis in SE patients is increased by 3.5 times.
Biomarker AMPA R Ab Full name AMPA Receptor Antibody Molecular Type Autoantibody
Molecular Formula / Molecular Weight / Core Functional Dimensions Diagnosis, Etiology
Disease(or Constitution) Epilepsy Disease Subtypes Autoimmune Epilepsy
Organ Brain Test Sample / Technology Platform Serum/Cerebrospinal Fluid (ELISA, Cell-based Assay)
Pathobiological Mechanisms Binds to AMPA receptors, enhances excitatory neurotransmission, inducing refractory epilepsy and encephalitis.
Clinical Availability Status Research validation stage
Notes and Dynamics Often accompanied by acute encephalitis; immunotherapy (e.g., rituximab) can improve epilepsy control.
Biomarker Ki-67 Full name Ki-67 Protein Molecular Type Protein
Molecular Formula / Molecular Weight / Core Functional Dimensions Prognosis, Risk Stratification
Disease(or Constitution) Epilepsy Disease Subtypes Brain Tumor-Associated Epilepsy (BTRE)
Organ Brain Test Sample / Technology Platform Tumor Tissue (Immunohistochemistry)
Pathobiological Mechanisms Reflects tumor proliferation activity; higher expression indicates more significant intracerebral microenvironment disorder and increased epilepsy onset risk.
Clinical Availability Status Under clinical validation
Notes and Dynamics In WHO grade II glioma patients with Ki-67 index > 5%, the postoperative epilepsy recurrence risk is increased by 2 times.
Biomarker HFOs (80-500Hz, EEG) Full name Electroencephalographic High-Frequency Oscillations (80-500Hz) Molecular Type Electrophysiological Pattern
Molecular Formula / Molecular Weight / Core Functional Dimensions Diagnosis, Risk Stratification
Disease(or Constitution) Epilepsy Disease Subtypes Childhood Epilepsy
Organ Brain Test Sample / Technology Platform Intracranial/Scalp (Long-term EEG Monitoring)
Pathobiological Mechanisms Epileptogenic focus-specific electrical activity, reflecting abnormal neuronal synchronization, can localize the epileptogenic focus.
Clinical Availability Status Research stage
Notes and Dynamics Intraoperative monitoring of HFOs can improve the accuracy of epileptogenic focus resection and reduce postoperative recurrence rate.
Biomarker MGMT Promoter Meth Full name O6-Methylguanine-DNA Methyltransferase Promoter Methylation Molecular Type DNA Methylation
Molecular Formula / Molecular Weight / Core Functional Dimensions Prediction, Pharmacodynamics/Response
Disease(or Constitution) Epilepsy Disease Subtypes Drug-Refractory Epilepsy
Organ Brain Test Sample / Technology Platform Tumor Tissue (MSP, Pyrosequencing)
Pathobiological Mechanisms Methylation silences the MGMT gene, reduces DNA repair, and enhances the efficacy of temozolomide on epilepsy-related brain tumors.
Clinical Availability Status Research validation stage
Notes and Dynamics The epilepsy control rate of chemotherapy combined with ASM treatment is increased by 40% in methylation-positive patients.
Biomarker SLC7A11 (xCT) Full name Solute Carrier Family 7 Member 11 (xCT) Molecular Type Transporter
Molecular Formula / Molecular Weight / Core Functional Dimensions Diagnosis, Prediction
Disease(or Constitution) Epilepsy Disease Subtypes Brain Tumor-Associated Epilepsy (BTRE)
Organ Brain Test Sample / Technology Platform Tumor Tissue (Immunohistochemistry, qPCR)
Pathobiological Mechanisms Mediates cystine-glutamate exchange, excessively releases glutamate into the extracellular space, activates excitatory neurons, inducing epilepsy.
Clinical Availability Status Research validation stage
Notes and Dynamics The incidence of epilepsy in glioma patients with high SLC7A11 expression reaches 75%; the specific inhibitor sulfasalazine can reduce seizures.
Biomarker S100B Full name S100 Calcium-Binding Protein B Molecular Type Protein
Molecular Formula / Molecular Weight / Core Functional Dimensions Prognosis, Monitoring
Disease(or Constitution) Epilepsy Disease Subtypes Temporal Lobe Epilepsy (TLE)
Organ Brain Test Sample / Technology Platform Serum (ELISA)
Pathobiological Mechanisms Released after astrocyte activation, involved in neuroinflammation and blood-brain barrier disruption, reflecting the degree of brain injury.
Clinical Availability Status Under clinical validation
Notes and Dynamics Serum S100B peaks within 24 hours after TLE seizures, and levels are positively correlated with the degree of hippocampal sclerosis.
Biomarker 8-OHdG Full name 8-Hydroxy-2’-deoxyguanosine Molecular Type Metabolites (oxidative stress markers)
Molecular Formula C₁₀H₁₃N₅O₅ Molecular Weight 283.24 Core Functional Dimensions Monitoring and prognosis
Disease(or Constitution) Diabetes Mellitus Disease Subtypes Diabetes Mellitus
Organ Systemic/Cells Test Sample / Technology Platform Plasma/urine (mass spectrometry, ELISA)
Pathobiological Mechanisms Oxidative stress leads to DNA damage products, reflecting the degree of oxidative damage in diabetes
Clinical Availability Status As diabetes clinical auxiliary indicators of oxidative stress status and complications of risk assessment, lack of unified reference standard
Notes and Dynamics Positively related to the risk of diabetic microvascular complications
Biomarker P-gp Full name P-Glycoprotein Molecular Type Transporter
Molecular Formula / Molecular Weight / Core Functional Dimensions Prediction, Pharmacodynamics/Response
Disease(or Constitution) Epilepsy Disease Subtypes Drug-Refractory Epilepsy
Organ Brain Test Sample / Technology Platform Brain Microvessels/Plasma (Immunohistochemistry, Western Blot)
Pathobiological Mechanisms Overexpressed at the blood-brain barrier, actively pumps out ASMs, reducing intracerebral drug concentration, leading to treatment resistance.
Clinical Availability Status Under clinical validation
Notes and Dynamics COX-2 inhibitors (e.g., celecoxib) can downregulate P-gp expression, reversing multidrug resistance in some patients.
Biomarker SV2A Full name Synaptic Vesicle Protein 2A Molecular Type Protein
Molecular Formula / Molecular Weight / Core Functional Dimensions Prediction, Pharmacodynamics/Response
Disease(or Constitution) Epilepsy Disease Subtypes Brain Tumor-Associated Epilepsy (BTRE)
Organ Brain Test Sample / Technology Platform Tumor Tissue (Immunohistochemistry, PET Imaging)
Pathobiological Mechanisms A specific binding target of the anti-epileptic drug levetiracetam; expression levels directly affect drug sensitivity.
Clinical Availability Status Under clinical validation
Notes and Dynamics The response rate to levetiracetam is increased by 30% in patients with high SV2A expression; PET imaging can guide individualized medication.
Biomarker miR-29a/b Full name microRNA-29a / microRNA-29b Molecular Type Nucleic acid (miRNA)
Molecular Formula Macromolecule Molecular Weight / Core Functional Dimensions Diagnosis, risk assessment
Disease(or Constitution) Diabetes Mellitus Disease Subtypes Gestational diabetes mellitus (GDM)
Organ Placenta/Systemic Test Sample / Technology Platform Serum (qRT - PCR)
Pathobiological Mechanisms It regulates glucose metabolism and insulin sensitivity, and its expression is abnormal during pregnancy
Clinical Availability Status Validation phase in clinical research, diagnosis of GDM AUC 0.944 joint detection, the accuracy is better than that of single index, but has not yet been incorporated into the clinical guidelines
Notes and Dynamics The diagnostic accuracy of combined detection was better than that of single index (AUC 0.944).
Biomarker miR-146a Full name MicroRNA-146a Molecular Type MicroRNA
Molecular Formula / Molecular Weight / Core Functional Dimensions Prognosis, Monitoring
Disease(or Constitution) Epilepsy Disease Subtypes Temporal Lobe Epilepsy (TLE)
Organ Brain Test Sample / Technology Platform Plasma/Cerebrospinal Fluid (qRT-PCR)
Pathobiological Mechanisms Regulates the TLR4/NF-κB pathway, upregulated expression exacerbates neuroinflammation, promoting epilepsy progression.
Clinical Availability Status Research validation stage
Notes and Dynamics Meta-analysis shows that CSF miR-146a levels in TLE patients are elevated by 1.8 times, correlated with disease severity.
Biomarker miR-128 Full name MicroRNA-128 Molecular Type MicroRNA
Molecular Formula / Molecular Weight / Core Functional Dimensions Prognosis, Monitoring
Disease(or Constitution) Epilepsy Disease Subtypes Temporal Lobe Epilepsy (TLE)
Organ Brain Test Sample / Technology Platform Plasma/Cerebrospinal Fluid (qRT-PCR)
Pathobiological Mechanisms Targets and regulates neuron excitability-related genes (e.g., SOX9), downregulated expression is associated with hippocampal sclerosis and epilepsy recurrence.
Clinical Availability Status Research validation stage
Notes and Dynamics Positively correlated with postoperative recurrence risk in TLE patients; plasma levels can be used as a non-invasive recurrence monitoring indicator.
Biomarker P2X7R rs208294 Polym Full name P2X7R Gene rs208294 Polymorphism Molecular Type Gene Polymorphism
Molecular Formula / Molecular Weight / Core Functional Dimensions Risk Stratification
Disease(or Constitution) Epilepsy Disease Subtypes Childhood Febrile Convulsions
Organ Brain Test Sample / Technology Platform Peripheral Blood (Gene Sequencing, PCR-RFLP)
Pathobiological Mechanisms Gain-of-function mutation enhances P2X7R-mediated inflammatory response, reducing the epileptic seizure threshold.
Clinical Availability Status Research stage
Notes and Dynamics Children carrying this mutation have a 2.8-fold higher risk of developing epilepsy from febrile convulsions than wild-type.

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This study was supported by the Scientific Research Innovation Capability Support Project for Young Faculty (SRICSPYF-ZY2025112), the Fundamental and Interdisciplinary Disciplines Breakthrough Plan of the Ministry of Education of China (JYB2025XDXM612)

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