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See detailAnatomically discrete sex differences and enhancement by testosterone of cell proliferation in the telencephalic ventricle zone of the adult canary brain.
Barker, Jennifer M.; Ball, Gregory F.; Balthazart, Jacques ULiege

in Journal of chemical neuroanatomy (2013)

Previous work in songbirds has suggested that testosterone increases neuronal recruitment and survival in HVC but does not affect neuronal proliferation in the ventricular zone and that males and females ... [more ▼]

Previous work in songbirds has suggested that testosterone increases neuronal recruitment and survival in HVC but does not affect neuronal proliferation in the ventricular zone and that males and females have similar rates of proliferation except at discrete locations. Many of these conclusions are however based on limited data or were inferred indirectly. Here we specifically tested the effects of testosterone on cellular proliferation in the ventricular zone of both male and female adult canaries. We implanted adult birds of both sexes with testosterone or empty implants for 1 week and injected them with BrdU. One day later, we collected their brains and quantified BrdU-positive cells in the ventricular zone (VZ) at different rostro-caudal levels of the brain, ranging from the level where the song nucleus Area X occurs through the caudal extent of HVC. Proliferation in the dorsal part of the VZ was low and unaffected by sex or testosterone treatment. In the ventral part of the VZ, females had more proliferating cells than males, but only at rostral levels, near Area X. Also in the ventral part of the VZ, testosterone increased proliferation in birds of both sexes, but only in the mid- to caudal-VZ, caudal to the level of Area X, around the septum and HVC. We thus demonstrate here that there is both an effect of testosterone and possibly a more subtle effect of sex on cellular proliferation in the adult songbird brain, and that these effects are specific to different levels of the brain. [less ▲]

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See detailAnatomically discrete sex differences in neuroplasticity in zebra finches as reflected by perineuronal nets.
Cornez, Gilles ULiege; Ter Haar, Sita M.; Cornil, Charlotte ULiege et al

in PloS one (2015), 10(4), 0123199

Large morphological sex differences in the vertebrate brain were initially identified in song control nuclei of oscines. Besides gross differences between volumes of nuclei in males and females, sex ... [more ▼]

Large morphological sex differences in the vertebrate brain were initially identified in song control nuclei of oscines. Besides gross differences between volumes of nuclei in males and females, sex differences also concern the size and dendritic arborization of neurons and various neurochemical markers, such as the calcium-binding protein parvalbumin (PV). Perineuronal nets (PNN) of the extracellular matrix are aggregates of different compounds, mainly chondroitin sulfate proteoglycans, that surround subsets of neurons, often expressing PV. PNN develop in zebra finches song control nuclei around the end of the sensitive period for song learning and tutor deprivation, known to delay the end of the song learning sensitive period, decreases the numbers of PNN in HVC. We demonstrate here the existence in zebra finches of a major sex difference (males > females) affecting the number of PNN (especially those surrounding PV-positive cells) in HVC and to a smaller extent the robust nucleus of the arcopallium, RA, the two main nuclei controlling song production. These differences were not present in Area X and LMAN, the lateral magnocellular nucleus of the anterior nidopallium. A dense expression of material immunoreactive for chondroitin sulfate was also detected in several nuclei of the auditory and visual pathways. This material was often organized in perineuronal rings but quantification of these PNN did not reveal any sex difference with the exception that the percentage of PNN surrounding PV-ir cells in the dorsal lateral mesencephalic nucleus, MLd, was larger in females than in males, a sex difference in the opposite direction compared to what is seen in HVC and RA. These data confirm and extend previous studies demonstrating the sex difference affecting PNN in HVC-RA by showing that this sex difference is anatomically specific and does not concern visual or auditory pathways. [less ▲]

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See detailAnatomically informed basis functions for EEG source localization : Combining functional and anatomical constraints
Phillips, Christophe ULiege; Rugg, Michael D; Friston, Karl J

in Neuroimage (2002), 16(3), 678-6951

Distributed linear solutions have frequently been used to solve the source localization problem in EEG. Here we introduce an approach based on the weighted minimum norm (WMN) method that imposes ... [more ▼]

Distributed linear solutions have frequently been used to solve the source localization problem in EEG. Here we introduce an approach based on the weighted minimum norm (WMN) method that imposes constraints using anatomical and physiological information derived from other imaging modalities. The anatomical constraints are used to reduce the solution space a priori by modeling the spatial source distribution with a set of basis functions. These spatial basis functions are chosen in a principled way using information theory. The reduced problem is then solved with a classical WMN method. Further (functional) constraints can be introduced in the weighting of the solution using fMRI brain responses to augment spatial priors. We used simulated data to explore the behavior of the approach over a range of the model's hyperparameters. To assess the construct validity of our method we compared it with two established approaches to the source localization problem, a simple weighted minimum norm and a maximum smoothness (Loreta-like) solution. This involved simulations, using single and multiple sources that were analyzed under different levels of confidence in the priors. (C) 2002 Elsevier Science (USA). [less ▲]

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See detailL'anatomie au secours des cliniciens face à une douleur répétitive abdominale: le syndrome de la pince aorto-mésentérique
Strul, Nathan; Vaessen, S.; Collard, Laure ULiege et al

in Revue Médicale de Liège (2007), 62(2), 73-76

Detailed reference viewed: 95 (16 ULiège)
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See detailAnatomie chirurgicale de la valvule aortique. Relations avec le corps fibreux central et le tissu de conduction
RADERMECKER, Marc ULiege; Limet, Raymond ULiege

in Revue Médicale de Liège (1995), 50(7), 286-8

L'anatomie intrinsèque de la valvule aortique est plus simple que celle des valvules auriculo-ventriculaires ; toutefois, de par sa situation anatomique centrale entre les valvules mitrale et tricuspide ... [more ▼]

L'anatomie intrinsèque de la valvule aortique est plus simple que celle des valvules auriculo-ventriculaires ; toutefois, de par sa situation anatomique centrale entre les valvules mitrale et tricuspide en arrière, les sigmoïdes pulmonaires en avant, la valvule aortique présente de multiples rapports qu'il convient de connaître. C'est l'ambition de cette revue que d'illustrer les relations de la valvule aortique avec les structures avoisinantes, de montrer la complexité de son attache à la jontion ventriculo-artérielle, et de rappeler comment sa géométrie très précise permet, en synergie avec les sinus de Valsalva, d'en optimaliser le fonctionnement hémodynamique. [less ▲]

Detailed reference viewed: 103 (0 ULiège)
See detailAnatomie chirurgicale du plancher pelvien chez la femme.
Bonnet, Pierre ULiege

Conference (2015, June 13)

Detailed reference viewed: 59 (3 ULiège)
See detailAnatomie chirurgicale du plancher Pelvien et du rétropéritoine chez la femme
Bonnet, Pierre ULiege

Conference (2016, June 22)

Leçon introductive reprenant les notions anatomiques essentielles à maîtriser lors de l'approche chirurgicale du pelvis et du rétropéritoine chez la femme. Approche constructive par la réalisation ... [more ▼]

Leçon introductive reprenant les notions anatomiques essentielles à maîtriser lors de l'approche chirurgicale du pelvis et du rétropéritoine chez la femme. Approche constructive par la réalisation extemporanée de schémas projetés. [less ▲]

Detailed reference viewed: 38 (3 ULiège)
See detailAnatomie chirurgicale du plancher pelvien et du rétropéritoine chez la femme
Bonnet, Pierre ULiege

Conference (2015, June 12)

Detailed reference viewed: 40 (0 ULiège)
See detailAnatomie Comparée (Web-site)
Noble, Prisca ULiege; Collin, Bernard ULiege

Learning material (2009)

Detailed reference viewed: 153 (19 ULiège)
See detailAnatomie de l'appareil génital femelle des petits camélidés sud-américains
Hanzen, Christian ULiege; Cucho Dolmos, Hernan; Amupero Casquino, Enrique et al

E-print/Working paper (2015)

Detailed reference viewed: 25 (0 ULiège)
See detailAnatomie de l’ennui
Desseilles, Martin ULiege

Scientific conference (2012, June)

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See detailAnatomie des monticules micritiques du Frasnien belge et contexte eustatique
Boulvain, Frédéric ULiege; Herbosch, A.

in Bulletin de la Société Géologique de France (1996), 167(3), 391-398

Detailed reference viewed: 27 (1 ULiège)
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See detailAnatomie des récifs de marbre rouge frasniens belges
Boulvain, Frédéric ULiege

in Toussaint, Jacques (Ed.) Les carrières de l'entité de Rochefort. Du marbre et des hommes (2014)

Detailed reference viewed: 41 (0 ULiège)
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See detailAnatomie descriptive de la cavité péritonéale par la péritonéographie scanographique : implications diagnostiques pratiques
OUHADI; MATERNE, R; GHEKIERE, O et al

Poster (2011)

Detailed reference viewed: 16 (2 ULiège)
See detailAnatomie Equine (CD-rom)
Noble, Prisca ULiege; Caron, Yannick ULiege

Book published by Derouaux-Ordina (2004)

The first objective of this anatomical presentation is to establish relation between systemic anatomy and topographic anatomy. The second objective is to teach a practical anatomy that must be adapted to ... [more ▼]

The first objective of this anatomical presentation is to establish relation between systemic anatomy and topographic anatomy. The second objective is to teach a practical anatomy that must be adapted to the clinician work. [less ▲]

Detailed reference viewed: 104 (19 ULiège)
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See detailAnatomie et identification des bois
Jourez, Benoît ULiege

Learning material (2010)

WOOD ANATOMY Anatomical structure of softwoods and hardwoods Structure of cell wall and submicroscopical structure Wood anatomy of tropical hardwood species Anatomical features leading to the ... [more ▼]

WOOD ANATOMY Anatomical structure of softwoods and hardwoods Structure of cell wall and submicroscopical structure Wood anatomy of tropical hardwood species Anatomical features leading to the identification of wooden species Heartwood and heartwood formation Abnormal structure (compression wood and tension wood) WOOD CHEMISTRY General composition Cellulose, hemicellulose, lignine and secondary components. [less ▲]

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See detailAnatomie et physiologie à l'effort
PIERARD, Luc ULiege

in Cardio & Sport (2014), 43

Detailed reference viewed: 38 (9 ULiège)
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See detailAnatomie et physiologie de la reproduction du mâle
Hanzen, Christian ULiege; Cucho Dolmos, Hernan; Ampuero Casquino, Enrique et al

in Hanzen, Christian; Cucho Dolmos, Hernan; Ampuero Casquino, Enrique (Eds.) et al Principes de reproduction des petits camélidés sud-américains (2014)

Detailed reference viewed: 75 (5 ULiège)
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See detailAnatomie et physiologie de la reproduction du male des petits camélidés sud-américains
Hanzen, Christian ULiege; Cucho Dolmos, Hernan; Ampuero Casquino, Enrique et al

E-print/Working paper (2014)

Detailed reference viewed: 35 (1 ULiège)
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See detailAnatomie et physiologie génitale bovine
Hanzen, Christian ULiege; Nguyen, Kien Cuong

Learning material (2014)

La présentation concerne les rappels physiologiques et anatomiques du tractus génital de la vache. Traduite en vietnamien par le Dr. Nguyen Kien Cuong, doctorant au service de Theriogenologie de la ... [more ▼]

La présentation concerne les rappels physiologiques et anatomiques du tractus génital de la vache. Traduite en vietnamien par le Dr. Nguyen Kien Cuong, doctorant au service de Theriogenologie de la Faculté de Médecine Vétérinaire, elle a été donnée en aout 2014 aux étudiants de la faculté agrovétérinaire de l'université Nong Lam de HCMville [less ▲]

Detailed reference viewed: 450 (15 ULiège)