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Université de Fribourg

Combined with anti‐Nogo‐A antibody treatment, BDNF did not compensate the extra deleterious motor effect caused by large size cervical cord hemisection in adult macaques

Beaud, Marie‐Laure ; Rouiller, Eric M. ; Bloch, Jocelyne ; Mir, Anis ; Schwab, Martin E. ; Schmidlin, Eric

In: CNS Neuroscience & Therapeutics, 2019, p. cns.13213

In spinal cord injured adult mammals, neutralizing the neurite growth inhibitor Nogo‐A with antibodies promotes axonal regeneration and functional recovery, although axonal regeneration is limited in length. Neurotrophic factors such as BDNF stimulate neurite outgrowth and protect axotomized neurons. Can the effects obtained by neutralizing Nogo‐A, inducing an environment favorable for...

Université de Fribourg

Uninephrectomy-induced lipolysis and low-grade inflammation are mimicked by unilateral renal denervation

Arsenijevic, Denis ; Cajot, Jean-François ; Fellay, Benoit ; Dulloo, Abdul G. ; Vliet, Bruce N. Van ; Montani, Jean-Pierre

In: Integrative Physiology, 2016, p. 227

Uninephrectomy (UniNX) in rats on a fixed food intake leads to increased lipolysis and a low-grade inflammation with an increased subset of circulating cytokines. Because UniNX ablates renal nerves on the side of the removed kidney, we tested the contribution of unilateral renal denervation in the phenotype of UniNX. We compared Sham-operated controls, left nephrectomy (UniNX) and unilateral...

Université de Fribourg

Selective lentiviral-mediated suppression of microRNA124a in the hippocampus evokes antidepressants-like effects in rats

Bahi, Amine ; Chandrasekar, Vijay ; Dreyer, Jean-Luc

In: Psychoneuroendocrinology, 2014, vol. 46, p. 78–87

Several lines of evidences suggest that the brain-derived neutrophic factor (BDNF) is implicated in the pathophysiology of depression. However, the molecular mechanisms are not fully understood. In the current study we aimed to investigate how genetic modulation of BDNF in the hippocampus using microRNa124a (miR124a)-expressing lentiviral vectors (LV) might affect depression-like behavior in...

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

Short-term effects of unilateral lesion of the primary motor cortex (M1) on ipsilesional hand dexterity in adult macaque monkeys

Bashir, Shahid ; Kaeser, Mélanie ; Wyss, Alexander ; Hamadjida, Adjia ; Liu, Yu ; Bloch, Jocelyne ; Brunet, Jean-François ; Belhaj-Saif, Abderraouf ; Rouiller, Eric M.

In: Brain Structure and Function, 2011, vol. 217, no. 1, p. 63-79

Although the arrangement of the corticospinal projection in primates is consistent with a more prominent role of the ipsilateral motor cortex on proximal muscles, rather than on distal muscles involved in manual dexterity, the role played by the primary motor cortex on the control of manual dexterity for the ipsilateral hand remains a matter a debate, either in the normal function or after a...

Université de Fribourg

Neonatal stroke in mice causes long-term changes in neuronal notch-2 expression that may contribute to prolonged injury

Albéri, Lavinia ; Chi, Zhikai ; Kadam, Shilpa D. ; Mulholland, Justin D. ; Dawson, Valina L. ; Gaiano, Nicholas ; Comi, Anne M.

In: Stroke, 2010, vol. 41, no. Suppl. 1, p. S64-S71

Background and Purpose: Notch receptors (1–4) are membrane proteins that, on ligand stilumation, release their cytoplasmic domains to serve as transcription factors. Notch-2 promotes proliferation both during development and cancer, but its role in response to ischemic injury is less well understood. The purpose of this study was to understand whether Notch-2 is induced after neonatal stroke...

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

Cocaine-induced expression changes of axon guidance molecules in the adult rat brain

Bahi, Amine ; Dreyer, Jean-Luc

In: Molecular and Cellular Neuroscience, 2005, vol. 28(2), p. 275-291

Administration of drugs of abuse induces strong molecular adaptations and plasticity within the mesolimbic dopamine (DA) system, a pathway essential for reward-seeking behavior. Little is known about the specific targets involved in this neuroadaptation process, but there are indications that cocaine and other drugs of abuse share the ability to alter the morphology of neuronal dendrites and...