Results 51 to 60 of about 23,101 (254)

Opposite serotonergic modulation of sharp waves in the dorsal and ventral hippocampus

Frontiers in Synaptic Neuroscience
Serotonin plays a crucial role in regulating hippocampal network dynamics, however, its effects on sharp wave–ripples (SPWs), a pattern fundamental for memory consolidation and emotional processing, remain incompletely understood, particularly along the ...
Charalampos L. Kandilakis, Costas Papatheodoropoulos   +1 more
doaj   +1 more source

Polydopamine Nanoparticle‐Mediated Precise Near‐Infrared Optical Stimulation for Cognitive Enhancement

Advanced Science, EarlyView.
Polydopamine nanoparticles enable a precise, non‐genetic, and transcranial neuromodulation strategy via near‐infrared photothermal stimulation. By activating TRPV1 channels, this approach specifically enhances hippocampal gamma oscillations, thereby rescuing spatial memory deficits in models of perioperative neurocognitive disorder.
Yan‐Bo Zhou, Qiong Xue, Su‐Xuan Hou, Ke‐Yao Zhang, Wei‐Tong Pan, Ting‐Ting Zeng, Yu‐Ge Wang, Daqing Ma, Chenguang Zhao, Pan‐Miao Liu, Jian‐Jun Yang   +10 more
wiley   +1 more source

Discrete and differentiated encoding of distinct components of spatial experience occurs within the proximodistal subfields of the dorsoventral axis of the hippocampus

Frontiers in Behavioral Neuroscience
A multitude of studies have confirmed the essential role of the hippocampus in the acquisition and updating of associative experience. In rodents, spatial memories are dependent on hippocampal information processing and encoding.
Muxin Lin, Muxin Lin, Thu-Huong Hoang, Denise Manahan-Vaughan, Denise Manahan-Vaughan   +4 more
doaj   +1 more source

Elaboration of bilateral symmetry across Knautia macedonica capitula related to changes in ventral petal expression of CYCLOIDEA-like genes

EvoDevo, 2016
Background Shifts in floral form across angiosperms, particularly from radially symmetrical to bilaterally symmetrical flowers, are often associated with shifts in speciation rates and changes in pollination syndrome.
Brent A. Berger, Veronica Thompson, Aedric Lim, Vincent Ricigliano, Dianella G. Howarth   +4 more
doaj   +1 more source

The stress-response gene redd1 regulates dorsoventral patterning by antagonizing Wnt/β-catenin activity in zebrafish. [PDF]

PLoS ONE, 2012
REDD1/redd1 is a stress-response gene that is induced under various stressful conditions such as hypoxia, DNA damage, and energy stress. The increased REDD1 inhibits mTOR signaling and cell growth. Here we report an unexpected role of Redd1 in regulating
Qiang Feng, Xia Zou, Ling Lu, Yun Li, Yunzhang Liu, Jianfeng Zhou, Cunming Duan   +6 more
doaj   +1 more source

Regional and Compartmental Changes Drive Progressive Patterns of Striatal Degeneration in X‐Linked Dystonia Parkinsonism

Annals of Neurology, EarlyView.
Objective Initially described in 1976, X‐linked dystonia parkinsonism (XDP) is a neurodegenerative disease that can be characterized by the presentation of dystonia and parkinsonism symptoms. Although this disease bears some resemblance to other neurodegenerative diseases in terms of symptomatology, the pathological signature of XDP is still unclear ...
Adelie Y.S. Tan, Nakhon. S.S.S. Thai, Christine J. Arasaratnam, Seung A. Han, Ellen B. Penney, Geraldine Acuña‐Sunshine, Cid Czarina E. Diesta, Mark C. Ang, Edwin Muñoz, Cara Fernandez‐Cerado, Victor Cleofas, G. Paul Legarda, Salvie Velasco, Michelle A. Sy, Clinton P. Turner, Mike Dragunow, Maurice A. Curtis, Ann. M. Graybiel, Richard L.M. Faull, Malvindar K. Singh‐Bains   +19 more
wiley   +1 more source

Ontogeny of murine bony semicircular canal form

The Anatomical Record, EarlyView.
Abstract The labyrinthine geometry and functional anatomy of the semicircular canals have intrigued scientists for decades, and there has been considerable interest in understanding how these complex structures grow and develop with evidence emerging from human studies that size maturation occurs exceptionally early by comparison with other systems ...
Marcela Cárdenas‐Serna, Nathan Jeffery   +1 more
wiley   +1 more source

Subcortical Rotation and Specification of the Dorsoventral Axis in Newt Eggs [PDF]

Development, Growth & Differentiation, 1991
The specification of the dorsoventral axis in naturally polyspermic eggs of the Japanese newt, Cynops pyrrhogaster, was first examined by studies on the spatial relationship between the dorsal midline of the future body plan and the sperm entrance points (SEPs1).
Megumi, Fujisue, Masao, Sakai, Kiyotaka, Yamanat   +2 more
openaire   +2 more sources

Osteological correlates of the respiratory and vascular systems in the neural canals of Mesozoic ornithurines Ichthyornis and Janavis

The Anatomical Record, EarlyView.
Abstract In birds, the neural canal houses a variety of anatomical structures including the spinal cord, meninges, spinal vasculature, and respiratory diverticula. Among these, paramedullary diverticula and the extradural dorsal spinal vein may leave behind osteological correlates in the form of pneumatic foramina and fossae, and a bilobed geometry of ...
Jessie Atterholt, M. Grace Burton, Mathew J. Wedel, Juan Benito, Ellen Fricano, Daniel J. Field   +5 more
wiley   +1 more source

Functional anatomy, jaw mechanisms, and feeding behavior of Dunkleosteus terrelli (Placodermi, Arthrodira)

The Anatomical Record, EarlyView.
A new musculoskeletal reconstruction and revision of the cranio‐mandibular anatomy of the Devonian arthrodire placoderm Dunkleosteus terrelli from a comparative and functional anatomical perspective. Dunkleosteus is a specialized arthrodire with many specializations for feeding on large vertebrates, and many of its features are part of broader ...
Russell K. Engelman, Robert K. Carr, Kate Trinajstic, Zerina Johanson, Oleg A. Lebedev   +4 more
wiley   +1 more source