Results 71 to 80 of about 477,767 (296)

Greater addition of neurons to the olfactory bulb than to the cerebral cortex of eulipotyphlans but not rodents, afrotherians or primates

Frontiers in Neuroanatomy, 2014
The olfactory bulb is an evolutionarily old structure that antedates the appearance of a six-layered mammalian cerebral cortex. As such, the neuronal scaling rules that apply to scaling the mass of the olfactory bulb as a function of its number of ...
Pedro Furtado De Mattos Ribeiro, Paul eManger, Kenneth C Catania, Jon H Kaas, Suzana eHerculano-Houzel   +4 more
doaj   +1 more source

A large-scale simulation of the piriform cortex by a cell automaton-based network model

, 2002
An event-driven framework is used to construct physiologically motivated large-scale model of the piriform cortex containing in the order of 105 neuron-like computing units.
Chad, JD, Brown, AD, Claverol, ET
core   +1 more source

Chromogranin A in the olfactory system of the rat [PDF]

, 1990
The olfactory bulb of the rat contains chromogranin A at a similar level as the adrenal gland or the hypophysis as revealed by immunoblots. Olfactory chromogranin A also displays the same size as chromogranin A of endocrine cells.
O'Conner, D. T., M. Gratzl, Heiss, C., A. Mayerhofer, Gratzl, Manfred, Mayerhofer, Artur, Parmer, R. J., Lahr, G., T R. J. Parmer, G. Lahr, K. Schilling, Schilling, K., C. Hmss   +12 more
core   +1 more source

Smart Nanotechnologies for Multimodal Neuromodulation and Brain Interfacing

Advanced Science, EarlyView.
Recent advances in smart nanotechnologies are expanding the toolbox for brain interfacing, from wireless neuromodulation and high‐resolution sensing to targeted delivery within the central nervous system. By combining responsive nanomaterials with bioinspired design, these platforms enable multimodal interactions with neurons and glia, while also ...
Tommaso Curiale, Marie Celine Lefevre, Alessio Carmignani, Maria Cristina Ceccarelli, Matteo Battaglini, Attilio Marino, Gianni Ciofani   +6 more
wiley   +1 more source

Ultrasound‐Responsive Piezoelectric Fibrous Membrane Promotes Neurological Recovery After TBI by Modulating Microglial Polarization via Restoring Mitochondrial Dynamic Homeostasis

Advanced Science, EarlyView.
We demonstrate a novel therapy for traumatic brain injury TBI using a LIPUS‐responsive Piezoelectric fibrous membrane. It targets microglial mitochondria via in situ electrical signals, restoring homeostasis and reducing oxidative stress to promote an anti‐inflammatory M2 phenotype.
Wei Li, Runzhe Huang, Qingyuan Wu, Pengbo Zhou, Dangli Ren, Jingjing Wang, Hanjie Niu, Zemeng Li, Hongtao Sun, Huiyu Liu   +9 more
wiley   +1 more source

Odor induced functional connectivity alteration of POC-anterior frontal cortex-medial temporal cortex in patients with mild cognitive impairment

Frontiers in Aging Neuroscience
BackgroundMild cognitive impairment (MCI) is associated with an increased risk of dementia in older adults. Olfactory impairment may indicate prodromal dementia, yet its underlying mechanisms are not fully understood.
Weiping Li, Jianan Zhou, Shuying Li, Min Wu, Yajing Zhu, Qian Chen, Futao Chen, Xuefeng Ma, Xin Zhang, Zhengge Wang, Jiaming Lu, Bing Zhang, Bing Zhang, Bing Zhang, Bing Zhang, Bing Zhang, Bing Zhang, Bing Zhang   +17 more
doaj   +1 more source

Hippocampus and Parahippocampus Volume Reduction Associated With Impaired Olfactory Abilities in Subjects Without Evidence of Cognitive Decline

Frontiers in Human Neuroscience, 2020
The aim of this study was to investigate the relationship between olfactory recognition and morphological changes in olfactory brain regions including the amygdala, hippocampus, rectus, parahippocampus, orbitofrontal cortex, and medial frontal cortex in ...
Satomi Kubota, Satomi Kubota, Yuri Masaoka, Haruko Sugiyama, Masaki Yoshida, Akira Yoshikawa, Nobuyoshi Koiwa, Motoyasu Honma, Ryuta Kinno, Keiko Watanabe, Natsuko Iizuka, Natsuko Iizuka, Masahiro Ida, Kenjiro Ono, Masahiko Izumizaki   +14 more
doaj   +1 more source

Remote Magnetomechanical Neuromodulation Uncovers Therapeutic Mechanisms for Alleviating Parkinsonian Symptoms in Freely Moving Mice

Advanced Science, EarlyView.
Magnetomechanical neuromodulation using magnetic nanodiscs enables remote activation of neurons. In a hemiparkinsonian mouse model, alternating magnetic fields actuate the nanodiscs to generate torque that opens mechanosensitive ion channels within the subthalamic nucleus, thereby modulating basal ganglia motor circuitry.
Anouk Wolters, Lorenzo Signorelli, Christian Herff, Sophia Gimple, Renzo Riemens, Gunter Kenis, Kim Rijkers, Hamed Shabani, Jyh‐Jang Sun, Yasin Temel, Hans Clusmann, Danijela Gregurec, Sarah‐Anna Hescham   +12 more
wiley   +1 more source

Input-specific excitation of olfactory cortex microcircuits [PDF]

Frontiers in Neural Circuits, 2012
Every higher-order association cortex receives a variety of synaptic signals from different regions of the brain. How these cortical networks are capable of differentially responding to these various extrinsic synaptic inputs remains unclear. To address this issue, we studied how the basolateral amygdala (BLA) and the anterior piriform cortex (aPC ...
Luna, Victor M., Morozov, Alexei
openaire   +3 more sources

Requirement for Slit-1 and Robo-2 in zonal segregation of olfactory sensory neuron axons in the main olfactory bulb [PDF]

, 2007
The formation of precise stereotypic connections in sensory systems is critical for the ability to detect and process signals from the environment. In the olfactory system, olfactory sensory neurons (OSNs) project axons to spatially defined glomeruli ...
Cloutier, J-F, Cho, JH, Parnavelas, J, Andrews, W, Lépine, M   +4 more
core