Article
Biochemistry & Molecular Biology
Hannah Warming, Katrin Deinhardt, Patrick Garland, John More, Diederik Bulters, Ian Galea, Mariana Vargas-Caballero
Summary: During subarachnoid haemorrhage, the release of extracellular haemoglobin (Hb) causes oxidative damage and cell death in surrounding tissues. This study shows that haptoglobin can protect surviving neurons by scavenging free Hb and preventing cellular damage and deficits in synaptic function. The findings support the potential use of haptoglobin as a therapy for subarachnoid haemorrhage.
JOURNAL OF NEUROCHEMISTRY
(2023)
Article
Multidisciplinary Sciences
Zeinab Jahed, Yang Yang, Ching-Ting Tsai, Ethan P. Foster, Allister F. McGuire, Huaxiao Yang, Aofei Liu, Csaba Forro, Zen Yan, Xin Jiang, Ming-Tao Zhao, Wei Zhang, Xiao Li, Thomas Li, Annalisa Pawlosky, Joseph C. Wu, Bianxiao Cui
Summary: This study develops mechanically robust nanocrown electrodes with high success rates achieved through electroporation, and validates their accurate recording of intracellular action potentials through simultaneous patch clamp recording. The study also demonstrates the ability of nanocrown electrodes to enable prolonged recording of the same cells after sequential addition of drugs. This technological advancement is significant for establishing a screening assay for preclinical evaluation of drug-induced arrhythmogenicity.
NATURE COMMUNICATIONS
(2022)
Article
Biochemistry & Molecular Biology
Sergei I. I. Boikov, Dmitry A. A. Sibarov, Yulia D. D. Stepanenko, Tatiana V. V. Karelina, Sergei M. M. Antonov
Summary: The facilitated activity of N-methyl-D-aspartate receptors promotes neuropathic pain, and the anti-NMDAR properties of amitriptyline and desipramine contribute to their analgetic effects. Intracellular lithium ions enhance NMDAR desensitization by suppressing the sodium-calcium exchanger, leading to analgesia. This study found that therapeutic concentrations of lithium ions enhance the inhibitory effects of amitriptyline and desipramine on NMDARs, likely through competition for the same molecular target.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Genetics & Heredity
Krishan Kumar, Aparna Banerjee Dixit, Manjari Tripathi, Vivek Dubey, Fouzia Siraj, Mehar Chand Sharma, Sanjeev Lalwani, P. Sarat Chandra, Jyotirmoy Banerjee
Summary: This study identified altered genes in nonneoplastic epileptogenic cortical tissues and revealed the potential involvement of pathways such as the glutamatergic synapse in the pathogenesis of drug-refractory epilepsy associated with low-grade dysembryoplastic neuroepithelial tumors (DNTs).
FUNCTIONAL & INTEGRATIVE GENOMICS
(2022)
Article
Geriatrics & Gerontology
Yang Li, Shanchu Su, Jiaqi Yu, Minjing Peng, Shengjun Wan, Changbin Ke
Summary: The NMDG-HCl solution allowed successful patch-clamp recordings on dorsal horn neurons in middle-aged rat slices. The success rate was 34.6%, with some neurons showing GABAergic signals.
FRONTIERS IN AGING NEUROSCIENCE
(2021)
Article
Neurosciences
Eleonore Hardy, Martine Cohen-Salmon, Nathalie Rouach, Armelle Rancillac
Summary: The study found that astrocytes, through connexin 30 (Cx30), differentially alter the electrophysiological and morphological properties of hippocampal cells, modulating both excitatory and inhibitory inputs.
Article
Neurosciences
Zhendong Feng, Lopamudra Saha, Clio Dritsa, Qi Wan, Oleg O. O. Glebov
Summary: The function of the central nervous system is strongly influenced by temperature. This study reveals that hypothermia and hyperthermia trigger bidirectional re-organization of presynaptic architecture in hippocampal neurons, resulting in synaptic strengthening and weakening respectively. Hypothermia also remodels inhibitory postsynaptic scaffold, leading to enlarged sparse synapses enriched with GABAA receptors.
FRONTIERS IN CELLULAR NEUROSCIENCE
(2022)
Article
Pharmacology & Pharmacy
Keke Ren, Haiying Liu, Baolin Guo, Rui Li, Honghui Mao, Qian Xue, Han Yao, Shengxi Wu, Zhantao Bai, Wenting Wang
Summary: The study reveals that quercetin modulates neuronal activity by inhibiting TREK-1 channels, leading to neuroprotective and anti-manic effects. This action is achieved by reducing membrane resistance to increase the excitability threshold of neuronal firing.
BRITISH JOURNAL OF PHARMACOLOGY
(2021)
Article
Biochemistry & Molecular Biology
Shinhui Lee, Sanung Eom, Khoa V. A. Nguyen, Jiwon Lee, Youngseo Park, Hye Duck Yeom, Junho H. Lee
Summary: The study found that ergotamine effectively inhibits the NR1a/NR2A subunit of NMDAR, preventing excessive Ca2+ influx and neuronal death.
Article
Biotechnology & Applied Microbiology
Yige Li, Yangnan Hu, Hao Wei, Wei Cao, Yanru Qi, Shan Zhou, Panpan Zhang, Huawei Li, Geng-Lin Li, Renjie Chai
Summary: In this study, the effects of Ti3C2Tx MXene on the morphological and electrophysiological properties of neural stem cell (NSC)-derived neurons were investigated. The results showed that Ti3C2Tx MXene promotes NSCs differentiation and neurite growth, enhances synaptic transmission between mature neurons.
JOURNAL OF NANOBIOTECHNOLOGY
(2022)
Article
Neurosciences
Fatemeh Farahani, Narges Pachenari, S. Mohammad Ahmadi-Soleimani, Hossein Azizi, Saeed Semnanian
Summary: Administration of morphine can lead to dependence and tolerance, even after a single dose. This study found that acute exposure to morphine significantly decreases the spontaneous firing rate of locus coeruleus (LC) neurons, as well as alters the action potential characteristics.
NEUROSCIENCE LETTERS
(2023)
Article
Neurosciences
Hua Shi, Yunjia Tu, Yuanai Li, Chunyan Ma, Adwoa Takyiwaa Gyabaah, Chenyi Yu, Zhijie Li, Jiayi Chen, Zhilin Li, Zhi-Li Huang, Xiaohong Cai
Summary: Caffeine, a widely used first-line drug for treating neonatal apnea, has been found to excite the neurons in the medial parabrachial nucleus (MPB) by blocking A1R receptors. This study suggests that A1Rs in MPB may be potential targets for caffeine in reducing apnea neonatorum.
Article
Neurosciences
Bo Xing, Nancy R. Mack, Yu-Xiang Zhang, Erin P. McEachern, Wen-Jun Gao
Summary: Neuronal activity in the prefrontal cortex (PFC) controls dominance hierarchies, and dopamine plays a key role through D1 and D2 receptors. D1R+ neurons determine dominance while D2R+ neurons determine subordination. The synaptic strengths of D1R+ neurons and neuronal excitability of D2R+ neurons are important factors in intermale social rank determination.
JOURNAL OF NEUROSCIENCE
(2022)
Article
Engineering, Biomedical
Audrey Franceschi Biagioni, Giada Cellot, Elisa Pati, Neus Lozano, Belen Ballesteros, Raffaele Casani, Norberto Cysne Coimbra, Kostas Kostarelos, Laura Ballerini
Summary: Engineered small graphene oxide (s-GO) sheets have been shown to reversibly down-regulate glutamatergic synapses in the hippocampus, indicating their potential to target specific synapses in vivo. Synapses, acting as functional interfaces among neurons in the Central Nervous System (CNS), play a crucial role in synaptic plasticity, which is essential for learning and memory. Dysfunctional synaptic plasticity has been implicated in various brain diseases, such as dementia and anxiety disorders, highlighting the importance of understanding these mechanisms for potential therapeutic interventions.
Article
Neurosciences
Aniello Lombardi, Qiang Wang, Maik C. Stuettgen, Thomas Mittmann, Heiko J. Luhmann, Werner Kilb
Summary: This study investigates the role of short-term synaptic plasticity (STP) in excitatory and inhibitory synapses in the cortical layer 2/3 of mice. The results show that burst stimulation leads to short-term depression (STD) in both excitatory and inhibitory synapses, with stronger depression observed in inhibitory synapses and longer decay time.
FRONTIERS IN CELLULAR NEUROSCIENCE
(2023)
Article
Physics, Condensed Matter
Jan Krusek, Ivan Dittert, Tereza Smejkalova, Miloslav Korinek, Kristyna Gottfriedova, Hana Freislebenova, Eva Neuhoferova, Ladislav Klimsa, Silvia Sedlakova, Andrew Taylor, Vincent Mortet, Vaclav Petrak, Veronika Benson, Vladimira Petrakova
PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS
(2019)
Article
Biochemistry & Molecular Biology
Jiri Cerny, Paulina Bozikova, Ales Balik, Sergio M. Marques, Ladislav Vyklicky
Article
Neurosciences
Barbora Hrcka Krausova, Bohdan Kysilov, Jiri Cerny, Vojtech Vyklicky, Tereza Smejkalova, Marek Ladislav, Ales Balik, Miloslav Korinek, Hana Chodounska, Eva Kudova, Ladislav Vyklicky
JOURNAL OF NEUROSCIENCE
(2020)
Article
Multidisciplinary Sciences
Miloslav Korinek, Inmaculada M. Gonzalez-Gonzalez, Tereza Smejkalova, Dragana Hajdukovic, Kristyna Skrenkova, Jan Krusek, Martin Horak, Ladislav Vyklicky
SCIENTIFIC REPORTS
(2020)
Article
Neurosciences
Pavl Hubalkova, Marek Ladislav, Vojtech Vyklicky, Tereza Smejkalova, Barbora Hrcka Krausova, Bohdan Kysilov, Jan Krusek, Zaneta Naimova, Miloslav Korinek, Hana Chodounska, Eva Kudova, Jiri Cerny, Ladislav Vyklicky
Summary: Changes in NMDAR sensitivity to steroids due to alterations in intracellular Ca2+ levels serve as an acute endogenous mechanism that controls NMDAR activity.
JOURNAL OF NEUROSCIENCE
(2021)
Article
Pharmacology & Pharmacy
Tereza Smejkalova, Miloslav Korinek, Jan Krusek, Barbora Hrcka Krausova, Miriam Candelas Serra, Dragana Hajdukovic, Eva Kudova, Hana Chodounska, Ladislav Vyklicky
Summary: This study demonstrates a novel presynaptic effect of neurosteroids pregnanolone and pregnanolone sulfate in potentiating glutamate release, with the mechanism of pregnanolone partially overlapping with that of PDBu.
BRITISH JOURNAL OF PHARMACOLOGY
(2021)
Article
Pharmacology & Pharmacy
Kristyna Stefkova-Mazochova, Hynek Danda, Wim Dehaen, Bronislav Jurasek, Klara Sichova, Nikola Pinterova-Leca, Vladimir Mazoch, Barbora Hrcka Krausova, Bohdan o Kysilov, Tereza Smejkalova, Ladislav Vyklicky, Michal Kohout, Katerina Hajkova, Daniel Svozil, Rachel R. Horsley, Martin Kuchar, Tomas Palenicek
Summary: The study found that DCK has similar behavioral and addictive profiles to ketamine, with S-DCK being more active and having a slightly slower pharmacokinetic profile, which may result in a longer duration of action.
BRITISH JOURNAL OF PHARMACOLOGY
(2022)
Article
Biochemistry & Molecular Biology
Kristina Holubova, Marketa Chvojkova, Barbora Hrcka Krausova, Vojtech Vyklicky, Eva Kudova, Hana Chodounska, Ladislav Vyklicky, Karel Vales
Summary: Different neuroactive steroids show varied antipsychotic effects in an animal model of schizophrenia, with positive and negative NMDAR modulators demonstrating different outcomes. Furthermore, rats exposed to higher stress levels performed worse in cognitive tests, suggesting that enhancement of NMDAR function can result in nonspecific behavioral responses.
Article
Health Care Sciences & Services
Katerina Hirschfeldova, Jiri Cerny, Paulina Bozikova, Viktor Kuchtiak, Tobias Rausch, Vladimir Benes, Filip Spaniel, David Gregus, Jiri Horacek, Ladislav Vyklicky, Ales Balik
Summary: This study investigated the genetic variability of 16 iGluR genes in schizophrenia patients, identifying significantly increased genetic variations in genes such as GRIN2A-B, GRIN3A-B, and GRIK4. Intronic haplotypes and SNPs within iGluR gene sequences were associated with schizophrenia, indicating that intronic regulatory regions play a role in genetic predisposition to schizophrenia.
JOURNAL OF PERSONALIZED MEDICINE
(2021)
Article
Pharmacology & Pharmacy
Bohdan Kysilov, Barbora Hrcka Krausova, Vojtech Vyklicky, Tereza Smejkalova, Miloslav Korinek, Martin Horak, Hana Chodounska, Eva Kudova, Jiri Cerny, Ladislav Vyklicky
Summary: The study identifies novel sites of action for pregnanolones at the NMDAR and suggests the potential development of new therapeutic neurosteroid-based ligands to treat diseases associated with glutamatergic system hypofunction.
BRITISH JOURNAL OF PHARMACOLOGY
(2022)
Article
Neurosciences
Yang He, Jun Tang, Meng Zhang, Junjie Ying, Dezhi Mu
Summary: This study investigated the protective effects and mechanisms of human placenta derived mesenchymal stem cells (hPMSCs) transplantation in a rat model of hypoxic-ischemic encephalopathy (HIE). The results showed that hPMSCs transplantation reduced apoptosis and improved long-term neurological prognosis. Furthermore, the downregulation of Sema 3A/NRP-1 expression and activation of the PI3K/Akt/mTOR signaling pathway played a key role in the protective effects of hPMSCs.
Article
Neurosciences
Emily L. Isenstein, Edward G. Freedman, Jiayi Xu, Ian A. DeAndrea-Lazarus, John J. Foxe
Summary: This study evaluated electrophysiological discrimination of parametric somatosensory stimuli in healthy young adults to understand how the brain processes the duration of tactile information. The results showed that participants did not electrophysiologically discriminate between 100 and 115 ms, but they exhibited distinct electrophysiological responses when the deviant stimuli were 130, 145, and 160 ms. These findings contribute to a better understanding of tactile sensitivity in different clinical conditions.
Article
Neurosciences
Juliana R. Souza, Ludmila Lima-Silveira, Daniela Accorsi-Mendonca, Benedito H. Machado
Summary: This study demonstrates that A2A receptors play a crucial role in modulating synaptic transmission in the NTS neurons and are required for the enhancement of glutamatergic transmission observed under short-term sustained hypoxia conditions.
Article
Neurosciences
Miki Hashizume, Rina Ito, Rie Suge, Yasushi Hojo, Gen Murakami, Takayuki Murakoshi
Summary: The basolateral amygdaloid complex (BLA) is closely involved in the formation of emotional memories, including both aversive memory and contextual fear memory. Acute sleep deprivation (SD) disrupts the acquisition of tone-associated fear memory in juvenile rats, but has no significant effect on contextual fear memory. Slow network oscillation in the amygdala contributes to the formation of amygdala-dependent fear memory in relation to sleep.
Article
Neurosciences
Qunxian Wang, Shipeng Guo, Dongjie Hu, Xiangjun Dong, Zijun Meng, Yanshuang Jiang, Zijuan Feng, Weihui Zhou, Weihong Song
Summary: GSDME plays a crucial role in the pathogenesis of Alzheimer's disease by regulating the switch from apoptosis to pyroptosis and participating in neuroinflammatory response. Knockdown of GSDME has been shown to improve cognitive impairments, indicating that GSDME could be a therapeutic target for Alzheimer's disease.