Biologie aujourd'hui
2025
Amel Bouloufa, Sarah Delcourte, Nasser Haddjeri
Major depressive disorder (MDD) is a prevalent and disabling condition affecting over 350 million individuals worldwide. Although conventional antidepressants targeting serotonin, dopamine, and noradrenaline pathways provide benefit for many, a substantial proportion of patients experience inadequate response. Treatment-resistant depression (TRD), defined by failure to respond to at least two...
Biologie aujourd'hui
2023
Fahd Hilal, Jérôme Jeanblanc, Mickaël Naassïla
3 citations
Alcohol Use Disorder (AUD) is a psychiatric condition characterized by chronic and excessive drinking despite negative consequences on overall health and social or occupational functioning. There are currently limited treatment options available for AUD, and the effects size and the response rates to these treatments are often low to moderate. The World Health Organization has identified the...
Biologie aujourd'hui
2023
Philippe Fossati
Thirty percent of depressed patients are treatment resistant (TRD) suggesting the need of new therapeutic strategy. Recently, it has been shown that ketamine, an anesthetic agent with dissociative effects, has potent and rapid antidepressant properties. Ketamine is a ionotropic glutamatergic NMDA antagonist that inhibits gabaergic neurons. Its antidepressant effect peaks at 24 h post-treatment....
Biologie aujourd'hui
2023
Jean-Philippe Guilloux, Thi Mai Loan Nguyen, Alain M. Gardier
Ketamine, a non-competitive antagonist of the N-methyl-D-aspartate-glutamate receptor (R-NMDA), has a rapid (from 24 h post-dose) and prolonged (up to one week) antidepressant effect in treatment resistant depression and in rodent models of anxiety/depression. Arguments regarding its cellular and molecular mechanisms underlying its antidepressant activity mainly come from animal studies....
Biologie aujourd'hui
2023
Emilie Olié, Aiste Lengvenyte, Philippe Courtet
In France, suicidal behaviors remain a major public health issue. Depressed patients with suicidal ideation have more severe depressive symptoms, a more unfavorable disease course, and a greater number of suicide attempts than patients without suicidal ideation. Unfortunately, conventional antidepressants tend to be less effective in patients with suicidal tendencies than in those without....
Biologie aujourd'hui
2019
Rémi Corne, Raymond Mongeau
7 citations
Psychedelic drugs, often referred to as hallucinogens, are quite distinct from other classes of psychotropic drugs. Although the subjective and behavioral effects they induce are quite dramatic, they possess little addictive potential when compared to nicotine, alcohol or opiates. Since the discovery of ketamine antidepressant effects, there has been growing interest for these molecules....