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Association Between Ferroptosis and Epilepsy

8. april 2022 opdateret af: Affiliated Hospital of Jiangnan University

Association Between GPX4 Dependent Ferroptosis Pathway and Epilepsy in School-aged Children

Epilepsy is one of the most common neurologic disorders seen in children, often characterized by recurring seizures. Nearly 10.5 million children worldwide are estimated to have active epilepsy. Children with epilepsy are more likely to have developmental health and developmental comorbidities such as depression, anxiety, attention deficit hyperactivity disorder, learning disabilities, and developmental delay compared to children without epilepsy. Status epilepticus (SE) is the most common life-threatening emergency neurological emergency in children and leads to hippocampal neuronal cell death. The animal model proved SE-induced neuronal cell death in hippocampal CA1 and CA3 regions. Classical drugs like carbamazepine or phenytoin often cause behavioral problems and side effects such as unsteady gait, depression, and irritability. In addition, classical medicine did not protect cognitive function and preferred to drive drug-resistant. Therefore, it is necessary to develop a novel therapy to treat epilepsy. Ferroptosis is a new type of cell death, usually accompanied by a large amount of iron accumulation and lipid peroxidation. It is widely accepted that glutamate-mediated neuronal hyperexcitation plays a causative role in eliciting seizures, and cystine/glutamate antiporter inhibition induces ferroptosis. Hence, investigators hypothesize GPX4 dependent ferroptosis pathway may play a key role in eliciting seizures.

Studieoversigt

Status

Afsluttet

Betingelser

Intervention / Behandling

Detaljeret beskrivelse

To investigate the possible association between GPX4 dependent ferroptosis pathway and epilepsy. Investigators first obtained gene expression of GSE25453 from GEO (https://www.ncbi.nlm.nih.gov/geo), which contained ten medial temporal lobe epilepsy and ten adjacent non-seizure region tissues. Then, investigators further the possible association between GPX4 dependent ferroptosis pathway and epilepsy in school-aged children. Investigators obtained peripheral blood from 20 newly diagnosed untreated school-aged children (6 -12 years) and 20 age-matched healthy controls. Three glutathione peroxidase 4 (GPX4)dependent ferroptosis pathway biomarkers were investigated: Solute Carrier Family 7 Member 11(SLC7A11), GPX4, tumor protein 53 (P53). Western blot and Rt-qPCR were used to investigate the possible changes in these three biomarkers.

Undersøgelsestype

Observationel

Tilmelding (Faktiske)

40

Kontakter og lokationer

Dette afsnit indeholder kontaktoplysninger for dem, der udfører undersøgelsen, og oplysninger om, hvor denne undersøgelse udføres.

Studiesteder

    • Jiangsu
      • Wuxi, Jiangsu, Kina, 226600
        • Affiliated Hospital of JiangNan University, Department of Pediatrics

Deltagelseskriterier

Forskere leder efter personer, der passer til en bestemt beskrivelse, kaldet berettigelseskriterier. Nogle eksempler på disse kriterier er en persons generelle helbredstilstand eller tidligere behandlinger.

Berettigelseskriterier

Aldre berettiget til at studere

6 år til 12 år (Barn)

Tager imod sunde frivillige

Ja

Køn, der er berettiget til at studere

Alle

Prøveudtagningsmetode

Ikke-sandsynlighedsprøve

Studiebefolkning

school-aged children who admitted to our hospital from Jan 20, 2021 to Jan 1, 2022

Beskrivelse

Seizure group

Inclusion Criteria:

  1. Aged between 6 and 12 years old
  2. Newly diagnosed untreated epilepsy

Exclusion Criteria:

  1. Treated with medicine or another therapy
  2. Had history of cancer diseases
  3. Had history of endocrine diseases

Healthy control group

Inclusion Criteria:

1. Aged between 6 and 12 years old

Exclusion Criteria:

  1. Had history of epilepsy
  2. Had history of cancer diseases
  3. Had history of endocrine diseases

Studieplan

Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.

Hvordan er undersøgelsen tilrettelagt?

Design detaljer

Kohorter og interventioner

Gruppe / kohorte
Intervention / Behandling
Seizures group
20 newly diagnosed untreated school-aged children from Jan 20, 2021 to Jan 1, 2022 in affiliated Hospital of Jiangnan University, department of pediatrics.
Obtained patients or healthy controls peripheral blood , used Western blot and Rt-qPCR to investigate the possible difference between two groups
Healthy control group
20 age-matched healthy school-aged children from Jan 20, 2021 to Jan 1, 2022 in affiliated Hospital of Jiangnan University, department of pediatrics.
Obtained patients or healthy controls peripheral blood , used Western blot and Rt-qPCR to investigate the possible difference between two groups

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Rt-qPCR
Tidsramme: Participants' blood samples were collected when enrolled in this study, and the results of different relative mRNA expression (GPX4, SLC7A11, P53) on two groups would be reported through study completion, an average of 1 year.

Rt-qPCR allows the investigation of gene expression changes; investigators used primers as follow:

GPX4 Forward: GAGGCAAGACCGAAGTAAACTAC GPX4 Reverse: CCGAACTGGTTACACGGGAA P53 Forward: AACTGCGGGACGAGACAGA P53 Reverse: AGCTTCAAGAGCGACAAGTTTT SLC7A11 Forward: TCTCCAAAGGAGGTTACCTGC SLC7A11 Reverse: AGACTCCCCTCAGTAAAGTGAC

Participants' blood samples were collected when enrolled in this study, and the results of different relative mRNA expression (GPX4, SLC7A11, P53) on two groups would be reported through study completion, an average of 1 year.

Sekundære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Western blot
Tidsramme: Participants' blood samples were collected when enrolled in this study, and the results of different relative protein expressions (GPX4, SLC7A11, TP53) on two groups would be reported through study completion, an average of 1 year.
Western blotting is an important technique used in cell and molecular biology. Using a western blot, investigators could investigate the possible protein differences of three GPX4 dependent ferroptosis pathway biomarkers: GPX4, SLC7A11, P53.
Participants' blood samples were collected when enrolled in this study, and the results of different relative protein expressions (GPX4, SLC7A11, TP53) on two groups would be reported through study completion, an average of 1 year.

Samarbejdspartnere og efterforskere

Det er her, du vil finde personer og organisationer, der er involveret i denne undersøgelse.

Efterforskere

  • Studieleder: YueYing Liu, Affiliated Hospital of JiangNan University, Department of Pediatrics

Datoer for undersøgelser

Disse datoer sporer fremskridtene for indsendelser af undersøgelsesrekord og resumeresultater til ClinicalTrials.gov. Studieregistreringer og rapporterede resultater gennemgås af National Library of Medicine (NLM) for at sikre, at de opfylder specifikke kvalitetskontrolstandarder, før de offentliggøres på den offentlige hjemmeside.

Studer store datoer

Studiestart (Faktiske)

20. januar 2021

Primær færdiggørelse (Faktiske)

15. november 2021

Studieafslutning (Faktiske)

1. januar 2022

Datoer for studieregistrering

Først indsendt

23. februar 2022

Først indsendt, der opfyldte QC-kriterier

4. marts 2022

Først opslået (Faktiske)

8. marts 2022

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Faktiske)

15. april 2022

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

8. april 2022

Sidst verificeret

1. februar 2022

Mere information

Begreber relateret til denne undersøgelse

Andre undersøgelses-id-numre

  • 2022/2/21

Plan for individuelle deltagerdata (IPD)

Planlægger du at dele individuelle deltagerdata (IPD)?

INGEN

IPD-planbeskrivelse

Ferroptosis is a new type of cell death, usually accompanied by a large amount of iron accumulation and lipid peroxidation. It is widely accepted that glutamate-mediated neuronal hyperexcitation plays a causative role in eliciting seizures, and cystine/glutamate antiporter inhibition induces ferroptosis. Hence, we hypothesis GPX4 dependent ferroptosis pathway may play a key role in eliciting seizures.

Lægemiddel- og udstyrsoplysninger, undersøgelsesdokumenter

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