PMID- 37346877 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20231031 IS - 2008-126X (Print) IS - 2228-7442 (Electronic) IS - 2008-126X (Linking) VI - 14 IP - 1 DP - 2023 Jan-Feb TI - Datumetine Preferentially Upregulates N-methyl-D-aspartate Receptor Signalling Pathways in Different Brain Regions of Mice. PG - 103-116 LID - 10.32598/bcn.2021.3397.1 [doi] AB - INTRODUCTION: We previously reported that datumetine possesses binding affinity with N-methyl-D-aspartate receptor (NMDAR) and that 14-day exposure to datumetine altered NMDAR signaling by mimicking glutamate toxicity. Here, we investigated the potential neuroprotective effect of a single shot of a low dose of datumetine administration in BALB/c mice. METHODS: 30 male adult BALB/c mice were used for the study. The mice were randomly divided into three groups of ten mice each with an intraperitoneal injection of 0.1 mL of 10% DMSO for the Vehicle group, Datumetine group were administered 0.1 mg/kg body weight (bw) of datumetine and MK-801+Datumetine group were administered 0.5 mg/kg bw of MK-801 (to block NMDAR) followed by 0.1 mg/kg bw of datumetine after 30 minutes. 24 hours after administration, mice were euthanized in an isoflurane chamber followed by perfusion with 1X PBS. Brains were excised and stored at -20 degrees C till further processing. Mice designated for IHC were further perfused with 4% PFA and brain excised and stored in 4% PFA till further processing. NMDAR signalling molecules expression was evaluated in frozen brain samples and the fixed brain samples were stained for neuron, vGlut and NMDAR subtypes. RESULTS: Relative to vehicle (Veh), datumetine downregulate calcium calmodulin kinase II alpha (CamKIIalpha) expression in the hippocampus and prefrontal cortex (PFC) but not in the cerebellum, cyclic AMP response element binding protein (CREB) was also upregulated only in the PFC but phosphorylated CREB (pCREB) was also upregulated in three brain regions observed, while brain-derived neurotrophic factor (BDNF) was only upregulated in hippocampus and PFC of Datumetine relative to vehicle (Veh). On the other hand, dizocilpine (MK-801) reversed some of the effects of datumetine in the observed brain regions. No major histological alterations were observed in the different brain regions immunohistochemically. CONCLUSION: We conclude that a low dose of datumetine moderately enhances NMDAR activity. This showed the neuroprotective potentials of low datumetine exposure. CI - Copyright(c) 2023 Iranian Neuroscience Society. FAU - Ishola, Azeez Olakunle AU - Ishola AO AUID- ORCID: 0000-0001-9378-7858 AD - Department of Anatomy, College of Medicine and Health Sciences, Afe Babalola University Ado-Ekiti, Nigeria. FAU - Adetunji, Adedeji Enitan AU - Adetunji AE AUID- ORCID: 0000-0003-0532-252X AD - Department of Anatomy, College of Medicine and Health Sciences, Afe Babalola University Ado-Ekiti, Nigeria. FAU - Abanum, Isaac Chukwunwike AU - Abanum IC AD - Department of Anatomy, College of Medicine and Health Sciences, Afe Babalola University Ado-Ekiti, Nigeria. FAU - Adeyemi, Adesola Akorede AU - Adeyemi AA AD - Department of Anatomy, College of Medicine and Health Sciences, Afe Babalola University Ado-Ekiti, Nigeria. FAU - Faleye, Caleb Kenechukwu AU - Faleye CK AD - Department of Anatomy, College of Medicine and Health Sciences, Afe Babalola University Ado-Ekiti, Nigeria. FAU - Martins, Jane Babale AU - Martins JB AD - Department of Anatomy, College of Medicine and Health Sciences, Afe Babalola University Ado-Ekiti, Nigeria. FAU - Ogbe, Nnenna Chimdalu AU - Ogbe NC AD - Department of Anatomy, College of Medicine and Health Sciences, Afe Babalola University Ado-Ekiti, Nigeria. FAU - Ogundipe, Toluwalase Cherish AU - Ogundipe TC AD - Department of Anatomy, College of Medicine and Health Sciences, Afe Babalola University Ado-Ekiti, Nigeria. FAU - Okewulonu, Karen Ezichi AU - Okewulonu KE AD - Department of Anatomy, College of Medicine and Health Sciences, Afe Babalola University Ado-Ekiti, Nigeria. FAU - Okon, Umo Emmanuel AU - Okon UE AD - Department of Anatomy, College of Medicine and Health Sciences, Afe Babalola University Ado-Ekiti, Nigeria. FAU - Ovbude, Deborah Irenoise AU - Ovbude DI AD - Department of Anatomy, College of Medicine and Health Sciences, Afe Babalola University Ado-Ekiti, Nigeria. FAU - Akele, Richard Yomi AU - Akele RY AUID- ORCID: 0000-0003-2006-0820 AD - Department of Medical Laboratory Science, College of Medicine and Health Sciences, Afe Babalola University, Ado-Ekiti, Nigeria. FAU - Omotade, Naeemat Tolulope AU - Omotade NT AD - Department of Anatomy, College of Health Technology, Ijero-Ekiti, Nigeria. FAU - Ajao, Moyosore Salihu AU - Ajao MS AUID- ORCID: 0000-0002-9074-1405 AD - Department of Anatomy, University of Ilorin, Ilorin, Nigeria. LA - eng PT - Journal Article DEP - 20230101 PL - Iran TA - Basic Clin Neurosci JT - Basic and clinical neuroscience JID - 101575211 PMC - PMC10279986 OTO - NOTNLM OT - Cerebellum OT - Datumetine OT - Dizocilpine (MK-801) OT - Hippocampus OT - N-methyl-D-aspartate receptor (NMDAR) OT - Prefrontal cortex (PFC) COIS- Conflict of interest The authors declared no conflict of interest. EDAT- 2023/06/22 13:09 MHDA- 2023/06/22 13:10 PMCR- 2023/01/01 CRDT- 2023/06/22 09:56 PHST- 2021/05/13 00:00 [received] PHST- 2021/06/15 00:00 [revised] PHST- 2021/06/30 00:00 [accepted] PHST- 2023/06/22 13:10 [medline] PHST- 2023/06/22 13:09 [pubmed] PHST- 2023/06/22 09:56 [entrez] PHST- 2023/01/01 00:00 [pmc-release] AID - BCN-14-103 [pii] AID - 10.32598/bcn.2021.3397.1 [doi] PST - ppublish SO - Basic Clin Neurosci. 2023 Jan-Feb;14(1):103-116. doi: 10.32598/bcn.2021.3397.1. Epub 2023 Jan 1.