Université de Fribourg

Invasion of lesion territory by regenerating fibers after spinal cord injury in adult macaque monkeys

Beaud, Marie-Laure ; Rouiller, Eric M. ; Bloch, Jocelyne ; Mir, Anis ; Schwab, M.E. ; Wannier, Thierry ; Schmidlin, Eric

In: Neuroscience, 2012, vol. 27, p. 271–282

In adult macaque monkeys subjected to an incomplete spinal cord injury (SCI), corticospinal (CS) fibers are rarely observed to grow in the lesion territory. This situation is little affected by the application of an anti-Nogo-A antibody which otherwise fosters the growth of CS fibers rostrally and caudally to the lesion. However, when using the Sternberger monoclonal-incorporated antibody 32...

Université de Fribourg

Representation of motor habit in a sequence of repetitive reach and grasp movements performed by macaque monkeys: Evidence for a contribution of the dorsolateral prefrontal cortex

Kaeser, Mélanie ; Wannier, Thierry ; Brunet, Jean-François ; Wyss, Alexander F. ; Bloch, Jocelyne ; Rouiller, Eric M.

In: Cortex, 2012, p. -

In the context of an autologous cell transplantation study, a unilateral biopsy of cortical tissue was surgically performed from the right dorsolateral prefrontal cortex (dlPFC) in two intact adult macaque monkeys (dlPFC lesioned group), together with the implantation of a chronic chamber providing access to the left motor cortex. Three other monkeys were subjected to the same chronic chamber...

Université de Fribourg

Anti-Nogo-A antibody treatment enhances functional recovery and sprouting of the corticospinal tract after spinal cord injury in adult primates

Freund, Patrick ; Wannier, Thierry (Dir.)

Thèse de doctorat : Université de Fribourg, 2008 ; Nr. 1592.

After injury to the adult central nervous system (CNS), permanent deficits remain to a large part due to limited cell renewal, axonal regeneration and reestablishment of functional connectivity. Evidence indicate that the lack of axonal regeneration is partly due to the myelin-associated inhibitory factor Nogo-A. A therapeutical strategy to overcome this inhibition is to prevent the neurite...

Université de Fribourg

A case of polymicrogyria in macaque monkey: impact on anatomy and function of the motor system

Schmidlin, Eric ; Jouffrais, Christophe ; Freund, Patrick ; Wannier-Morino, Patrizia ; Beaud, Marie-Laure ; Rouiller, Eric M. ; Wannier, Thierry

In: BMC Neuroscience, 2009, vol. 10, p. 155

Background Polymicrogyria is a malformation of the cerebral cortex often resulting in epilepsy or mental retardation. It remains unclear whether this pathology affects the structure and function of the corticospinal (CS) system. The anatomy and histology of the brain of one macaque monkey exhibiting a spontaneous polymicrogyria (PMG monkey) were examined and compared to the brain of normal...

Université de Fribourg

Anti-Nogo-A antibody treatment promotes recovery of manual dexterity after unilateral cervical lesion in adult primates – re-examination and extension of behavioral data

Freund, Patrick ; Schmidlin, Eric ; Wannier, Thierry ; Bloch, Jocelyne ; Mir, Anis ; Schwab, Martin E. ; Rouiller, Eric M.

In: European Journal of Neuroscience, 2009, vol. 29, no. 5, p. 983 - 996

In rodents and nonhuman primates subjected to spinal cord lesion, neutralizing the neurite growth inhibitor Nogo-A has been shown to promote regenerative axonal sprouting and functional recovery. The goal of the present report was to re-examine the data on the recovery of the primate manual dexterity using refined behavioral analyses and further statistical assessments, representing secondary...

Université de Fribourg

Fate of rubrospinal neurons after unilateral section of the cervical spinal cord in adult macaque monkeys: Effects of an antibody treatment neutralizing Nogo-A

Wannier-Morino, Patrizia ; Schmidlin, Eric ; Freund, Patrick ; Belhaj-Saif, Abderraouf ; Bloch, Jocelyne ; Mir, Anis ; Schwab, Martin E. ; Rouiller, Eric M. ; Wannier, Tierry

In: Brain Research, 2008, vol. 1217, p. 96-109

The present study describes in primates the effects of a spinal cord injury on the number and size of the neurons in the magnocellular part of the red nucleus (RNm), the origin of the rubrospinal tract, and evaluates whether a neutralization of Nogo-A reduces the lesioned-induced degenerative processes observed in RNm. Two groups of monkeys were subjected to unilateral section of the spinal cord...

Université de Fribourg

Anti-Nogo-A antibody treatment does not prevent cell body shrinkage in the motor cortex in adult monkeys subjected to unilateral cervical cord lesion

Beaud, Marie-Laure ; Schmidlin, Eric ; Wannier, Thierry ; Freund, Patrick ; Bloch, Jocelyne ; Mir, Anis ; Schwab, Martin E. ; Rouiller, Eric M.

In: BMC Neuroscience, 2008, vol. 9, no. 1, p. 5

Background: After unilateral cervical cord lesion at the C7/C8 border interrupting the dorsolateral funiculus in adult monkeys, neutralization of Nogo-A using a specific monoclonal antibody promoted sprouting of corticospinal (CS) axons rostral and caudal to the lesion and, in parallel, improved functional recovery. In monkeys lesioned but not treated with the anti-Nogo-A antibody, the CS neurons...

Université de Fribourg

Anti-Nogo-A antibody treatment enhances sprouting of corticospinal axons rostral to a unilateral cervical spinal cord lesion in adult macaque monkey

Freund, Patrick ; Wannier, Thierry ; Schmidlin, Eric ; Bloch, Jocelyne ; Mir, Anis ; Schwab, Martin E. ; Rouiller, Eric M.

In: The Journal of Comparative Neurology, 2007, vol. 502, no. 4, p. 644 - 659

After injury, regrowth of axons in mammalian adult central nervous system is highly limited. However, in monkeys subjected to unilateral cervical lesion (C7-C8 level), neutralization of an important neurite outgrowth inhibitor, Nogo-A, stimulated axonal sprouting caudal to the lesion, accompanied by enhanced functional recovery of manual dexterity, compared with lesioned monkeys treated with a...

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1 Wannier, Tierry