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Genomics yields biological and phenotypic insights into bipolar disorder.
Nature
January 2025
Division of Mental Health and Addiction, Oslo University Hospital, Oslo, Norway.
Bipolar disorder is a leading contributor to the global burden of disease. Despite high heritability (60-80%), the majority of the underlying genetic determinants remain unknown. We analysed data from participants of European, East Asian, African American and Latino ancestries (n = 158,036 cases with bipolar disorder, 2.
View Article and Find Full Text PDFThe neuroprotective effects of cholecystokinin in the brain: antioxidant, anti-inflammatory, cognition, and synaptic plasticity.
Rev Neurosci
January 2025
School of Medical Sciences, Henan University of Chinese Medicine, Zhengzhou 450046, Henan Province, China.
Cholecystokinin (CCK) is a major neuropeptide in the brain that functions as a neurotransmitter, hormone, and growth factor. The peptide and its receptors are widely expressed in the brain. CCK signaling modulates synaptic plasticity and can improve or impair memory formation, depending on the brain areas studies and the receptor subtype activated.
View Article and Find Full Text PDFPost-traumatic epilepsy: Insights from human cortical contused tissue.
Epilepsy Behav
January 2025
Centro de Estudios Cerebrales, Facultad de Salud, Universidad del Valle, Cali, Colombia. Electronic address:
Traumatic brain injury is a significant risk factor for the development of post-traumatic epilepsy (PTE), posing a major clinical challenge. This review discusses the critical role of GABAergic interneurons and reactive astrogliosis in the pathophysiology of post-traumatic epilepsy, integrating findings from our research group within the traumatic brain injury context with recent literature to highlight the impact of excitation-inhibition imbalance. We analyzed alterations in interneuron populations, specifically subtypes expressing the calcium-binding proteins parvalbumin, calretinin, and calbindin, and their association with an increased risk of epileptogenesis after TBI.
View Article and Find Full Text PDFSynaptic Vesicle glycoprotein 2A knockout in parvalbumin and somatostatin interneurons drives seizures in the postnatal mouse brain.
J Neurosci
January 2025
Nervous System Disorders and Therapy, GIGA Institute, University of Liège, 4000 Liège, Belgium
Synaptic vesicle glycoprotein 2A (SV2A) is a presynaptic protein targeted by the antiseizure drug levetiracetam. One or more of the three SV2 genes is expressed in all neurons and is essential to normal neurotransmission. Loss of SV2A results in a seizure phenotype in mice and mutations in humans are also linked to congential seizures.
View Article and Find Full Text PDFDevelopment of differential sublaminar feedforward inhibitory circuits in CA1 hippocampus requires .
J Neurosci
January 2025
Department of Neuroscience, The Ohio State University College of Medicine, Columbus, OH 43210
Pyramidal cells (PCs) in CA1 hippocampus can be classified by their radial position as deep or superficial and organize into subtype-specific circuits necessary for differential information processing. Specifically, superficial PCs receive fewer inhibitory synapses from parvalbumin (PV)-expressing interneurons than deep PCs, resulting in weaker feedforward inhibition of input from CA3 Schaffer collaterals. Using mice, we investigated mechanisms underlying CA1 PC differentiation and the development of this inhibitory circuit motif.
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