User profiles for C. Lena

Clément Léna

Ecole Normale Supérieure, Paris, France
Verified email at biologie.ens.fr
Cited by 9401

[HTML][HTML] Brain nicotinic receptors: structure and regulation, role in learning and reinforcement

…, PJ Corringer, S Dehaene, S Edelstein, C Léna… - Brain research …, 1998 - Elsevier
… Moreover, under the same conditions, the contribution of loops A and B from the `principal
component' of the α-subunits increases up to six-fold relative to loop C, a finding consistent …

Modern psychophysical tests to assess olfactory function

A Eibenstein, AB Fioretti, C Lena, N Rosati… - Neurological …, 2005 - Springer
The sense of smell significantly contributes to quality of life. In recent years much progress
has been made in understanding the biochemistry, physiology and pathology of the human …

Acetylcholine receptors containing the β2 subunit are involved in the reinforcing properties of nicotine

MR Picciotto, M Zoli, R Rimondini, C Léna, LM Marubio… - Nature, 1998 - nature.com
Release of the neurotransmitter dopamine in the mesolimbic system of the brain mediates the
reinforcing properties of several drugs of abuse, including nicotine 1 . Here we investigate …

Allosteric modulations of the nicotinic acetylcholine receptor

C Léna, JP Changeux - Trends in neurosciences, 1993 - cell.com
… : cAMPdependent kinase (PKA); protein kinase C (PKC), which also phosphorylates the …
(C) Ca 2+ increases singlechannel opening frequency in outside-out recordings (adapted …

Abnormal avoidance learning in mice lacking functional high-affinity nicotine receptor in the brain

MR Picciotto, M Zoli, C Léna, A Bessis, Y Lallemand… - Nature, 1995 - nature.com
… f2" heterozygotes were mated and offspring were evaluated by PCR analysis (b), b, PCR
was 35 cycles of 94 C for 1 min, 65 C for 2 min and 72 C for 1 min. c, Southern blotting was as …

Subunit composition of functional nicotinic receptors in dopaminergic neurons investigated with knock-out mice

…, DJ David, C Przybylski, C Léna… - Journal of …, 2003 - Soc Neuroscience
… Incubation was prolonged overnight at 4C. Nonspecific binding was measured in the
presence of 100 nm unlabeled Epi. For each ligand, data from three to six experiments were …

Reduced antinociception in mice lacking neuronal nicotinic receptor subunits

…, MM Arroyo-Jimenez, M Cordero-Erausquin, C Léna… - Nature, 1999 - nature.com
c, Western blot analysis of total brain extracts using a polyclonal antibody against α4 subunit
(MMA-J. et … cDNA was amplified for 35 cycles of one minute at each of 96 C, 60 C and 72 C. …

Transcriptional reprogramming of mature CD4+ helper T cells generates distinct MHC class II–restricted cytotoxic T lymphocytes

…, G Kim, CJ Lena, S Sakaguchi, C Miyamoto… - Nature …, 2013 - nature.com
… (c) Cell surface staining for CD8α and GFP on gated CD45 + TCRβ + CD8β − CD4 + IELs
as in b. Numbers in quadrants indicate percent cells in each throughout. (d) Cell surface …

Identification of four classes of brain nicotinic receptors using β2 mutant mice

M Zoli, C Lena, MR Picciotto… - Journal of …, 1998 - Soc Neuroscience
… , all performed at 4C. Nonspecific binding was defined … 4C. It was followed by two rinses of
2 min in 50 mm Tris-HCl, pH 7.4, followed by a brief rinse in distilled water, all performed at 4C

Coherent amygdalocortical theta promotes fear memory consolidation during paradoxical sleep

…, S Duvarci, AT Popescu, C Léna… - Proceedings of the …, 2010 - National Acad Sciences
Brain activity in sleep plays a crucial role in memory consolidation, an offline process that
determines the long-term strength of memory traces. Consolidation efficacy differs across …