Results 51 to 60 of about 26,814 (193)

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

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

in dorsoventral pattern formation

, 2000
International audienceABSTRACT A bone morphogenetic protein (BMP) signaling pathway acts in the establishment of the dorsoventral axis of the vertebrate embryo.
Stephanie A. Connors, Thisse, Bernard, Connors, Stephanie, Maximilian Fürthauer, Christine Thisse, Fürthauer, Maximilian, Schmid, Bettina, Bernard Thisse, Thisse, Christine, Bettina Schmid, Jamie Trout, Mary C. Mullins, Trout, Jamie, Mullins, Mary   +13 more
core   +1 more source

FIGURES 10–13. 10–11. Myrsidea sychrai. 10. Male dorsoventral metathorax and abdomen. 11. Female dorsoventral metathorax and abdomen. 12–13. M. pittendrighi. 12. Female dorsoventral metathorax and abdomen. 13 in Five new species of Myrsidea Waterston (Phthiraptera: Menoponidae) from saltators and grosbeaks (Passeriformes: Cardinalidae)

, 2008
FIGURES 10–13. 10–11. Myrsidea sychrai. 10. Male dorsoventral metathorax and abdomen. 11. Female dorsoventral metathorax and abdomen. 12–13. M. pittendrighi. 12. Female dorsoventral metathorax and abdomen. 13.
Dalgleish, Robert C., Price, Roger D., Johnson, Kevin P.   +2 more
core   +1 more source

Dorsoventral Differences in Intrinsic Properties in Developing CA1 Pyramidal Cells [PDF]

, 2012
The dorsoventral and developmental gradients of entorhinal layer II cell grid properties correlate with their resonance properties and with their hyperpolarization-activated cyclic nucleotide-gated (HCN) ion channel current characteristics.
Esclapez, Monique, Marcelin, Béatrice, McClelland, Shawn, Bernard, Christophe, Baram, Tallie Z, Lewis, Alan S, Chetkovich, Dane M, Migliore, Michele, Liu, Zhiqiang, Chen, Yuncai, Becker, Albert   +10 more
core   +1 more source

Microsurgical and laser ablation analysis of leaf positioning and dorsoventral patterning in tomato

, 2005
Leaves are arranged according to regular patterns, a phenomenon referred to as phyllotaxis. Important determinants of phyllotaxis are the divergence angle between successive leaves, and the size of the leaves relative to the shoot axis.
Martin Frenz, Mandel, Therese, Frenz, Martin, Therese Mandel, Reinhardt, Didier, Didier Reinhardt, Cris Kuhlemeier, Kuhlemeier, Cris   +7 more
core   +1 more source

Genetic control of organ shape and tissue polarity.

PLoS Biology, 2010
The mechanisms by which genes control organ shape are poorly understood. In principle, genes may control shape by modifying local rates and/or orientations of deformation.
Amelia A Green, J Richard Kennaway, Andrew I Hanna, J Andrew Bangham, Enrico Coen   +4 more
doaj   +1 more source

How entorhinal grid cells may learn multiple spatial scales from a dorsoventral gradient of cell response rates in a self-organizing map. [PDF]

PLoS Computational Biology, 2012
Place cells in the hippocampus of higher mammals are critical for spatial navigation. Recent modeling clarifies how this may be achieved by how grid cells in the medial entorhinal cortex (MEC) input to place cells.
Stephen Grossberg, Praveen K Pilly
doaj   +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