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Astrocytic calcium waves:unveiling their roles in sleep and arousal modulation

Neural Regeneration Research 2024年第5期19卷 984-987页

作者： Erxi Wu Dan Qi damir nizamutdinov Jason H.Huang Department of Neurosurgery and Neuroscience Institute Baylor Scott&White HealthTempleTXUSA Texas A&M University School of Medicine TempleTXUSA Texas A&M University School of Pharmacy College StationTXUSA LIVESTRONG Cancer Institutes and Department of Oncology Dell Medical Schoolthe University of Texas at AustinAustinTXUSA Department of Neurosurgery Baylor College of MedicineTempleTXUSA

Neuron-astrocyte interactions are vital for the brain’s *** astrocyte activities is crucial for comprehending the complex neural network,particularly the population-level functions of neurons in different cortical states and associated behaviors in *** on animal sleep and wakefulness have revealed distinct cortical synchrony patterns between ***,outnumbering neurons by nearly fivefold,support and regulate neuronal and synaptic *** research on astrocyte activation during cortical state transitions has emphasized the influence of norepinephrine as a neurotransmitter and calcium waves as key components of ion channel *** summary focuses on a few recent studies investigating astrocyte-neuron interactions in mouse models during sleep,wakefulness,and arousal levels,exploring the involvement of noradrenaline signaling,ion channels,and glutamatergic signaling in different cortical *** findings highlight the significant impact of astrocytes on large-scale neuronal networks,influencing brain activity and *** astrocytic signaling pathways shows promise for treating sleep disorders and arousal *** research is needed to understand astrocytic calcium signaling in different brain regions and its implications for dysregulated brain states,requiring future human studies to comprehensively investigate neuron-astrocyte interactions and pave the way for therapeutic interventions in sleep-and arousal-related disorders.

关键词： arousal astrocyte calcium waves locus coeruleus neuron-astrocyte interaction norepinephrine sleep wakefulness

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Transcranial photobiomodulation with near-infrared light:a promising therapeutic modality for Alzheimer's disease

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Neural Regeneration Research 2023年第9期18卷 1944-1945页

作者： Hanli Liu damir nizamutdinov Jason H.Huang Bioengineering Department the University of Texas at ArlingtonArlingtonTXUSA Neurosurgery Neuroscience InstituteBaylor Scott and White HealthTempleTXUSA Neurosurgery College of MedicineTexas A&M UniversityTempleTXUSA

Transcranial photobiomodulation(tPBM) is a noninvasive neuromodulation technique that delivers near-infrared(NIR) light with low irradiance(i.e.,power density in mW/cm2) in the wavelength range of 800-1070 *** recently published books or collected literature(Hamblin,2019;GonzalezLima,2021) and papers(nizamutdinov et al. 2022)offer comprehensive reviews of the mechanism of action and potential clinical translations of tPBM for the treatment of a variety of diseases,including neurodegenerative diseases(Alzheimer’s disease(AD),and Parkinson’s disease),traumatic brain injury.

关键词： Alzheimer diseases

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Combination therapy of long-term tumor treating fields with temozolomide and bevacizumab prolongs survival in multifocal glioblastoma diagnosed patient: a case report

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Journal of Translational Neuroscience 2019年第1期4卷 50-54页

作者： damir nizamutdinov Kaiyang Feng Amanda Johnson Ekokobe Fonkem Department of Neurosurgery Baylor Scott & White Health Temple Texas 76504 USA Department of Surgery College of Medicine Texas A&M Health Science Center Temple Texas 76508 USA Department of Neuroscience and Experimental Therapeutics College of Medicine Texas A&M Health Science Center Bryan Texas 77807 USA Houston Baptist University Houston Texas 77074 USA

The multifocal glioblastomas (GBM) are tumors with multiple discrete areas of contrast enhancing tumors which have considerably poorer prognosis than solitary GBM. Median overall survival of diagnosed patients almost twice as less than solitary presentation. We present a case report of multifocal GBM. A 72-year old right-handed male was evaluated at the Neuro-Oncology Clinic of Baylor Scott and White Hospital (Central Division). Patient presented at this hospital because of persistent progressive headaches, confusion, and an incident of fall. Physical evaluation revealed neurological impairments. Brain magnetic resonance imaging (MRI) revealed heterogeneous contrast enhancing lesions with associated vasogenic oedema. Patient underwent a stereotactic biopsy analysis of the larger lesion and pathology evaluation concluded an isocitrate dehydrogenase 1 and 2 wild type GBM with unmethylated O-6-methylguanine- DNA methyltransferase. Treatment remedies: Patient received 4 weeks concurrent radiation therapy along with combination of temozolomide at dose of 75 mg/m^2 followed adjuvant temozolomide for 10 cycles with bevacizumab at 10 mg/kg every 2 weeks and Optune treatment. Post treatment evaluation: Repeat MRIs showed near complete resolution of the tumors at 26 months of treatment along with improvement of neurological status. Conclusion: Due to limitations of surgical manipulations in multifocal GBM diagnosed patients, combinational chemo and radiation therapy is the treatment of choice for most cases. Using additional novel treatment with non-invasive therapeutic device proven to be effective is another excellent approach to the established practice. Therefore, combination therapy of Optune plus temozolomide and bevacizumab might be a promising remedy for newly diagnosed multifocal glioblastomas.

关键词： multifocal glioblastoma tumor treating fields temozolomide bevacizumab

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