Chemsex. An emergent phenomenon.

Letter to the editor.

Severe Psychosis, Drug Dependence, and Hepatitis C Related to Slamming Mephedrone.

Background. Synthetic cathinones (SCs), also known as "bath salts," are β-ketone amphetamine compounds derived from cathinone, a psychoactive substance found in Catha edulis. Mephedrone is the most representative SC.

[Vegetables as new psychoactive drugs: a narrative review].

There is growing interest in plants with psychoactive effects among consumers with different levels of experience. This has generated a need for updated knowledge among medical professionals and other health workers. These plants, which may be used in shamanic healing ceremonies or rituals or just for traditional purposes, have emerged in the Western world as new psychoactive drugs; largely thanks to the ease of purchase, sale, cultivation and exchange of information that the Internet offers.

Platelet monoamine oxidase activity in obsessive-compulsive disorder.

Response to SSRIs suggests the implication of the serotonergic system in obsessive-compulsive disorder (OCD). However, biological studies on serotonergic function in OCD have yielded contradictory results. Platelet monoamine oxidase (MAO) activity has been proposed as an index of cerebral serotonin activity.

Association between obsessive-compulsive disorder and a variable number of tandem repeats polymorphism in intron 2 of the serotonin transporter gene.

Background: Pharmacological studies indicate a dysregulation of the serotonergic system in obsessive-compulsive disorder (OCD). A variable number tandem repeats (VNTR) polymorphism with three alleles (Stin2.9, Stin2.

Perceived quality of life in obsessive-compulsive disorder: related factors.

Background: Obsessive-compulsive disorder (OCD) affects young adults and has great impact on the social, emotional and work spheres.

Methods: We measured perceived quality of life (QOL) in OCD patients, in order to analyse socio-demographic and clinical factors that may be associated with QOL perception. 64 OCD outpatients were assessed with the Mini International Neuropsychiatric Interview for DSM-IV, the Yale-Brown Obsessions and Compulsions scale (Y-BOCS), Hamilton's depression scale and the SF-36 self-administered global QOL perception scale.

A pilot genetic study of the continuum between compulsivity and impulsivity in females: the serotonin transporter promoter polymorphism.

According to some authors the obsessive-compulsive (OC) spectrum includes on one extreme, the Obsessive-Compulsive Disorder (OCD) and on the other extreme the most impulsive behaviors. This is a controversial idea and other authors define the OC spectrum in different ways. The serotonin transporter (5-HTT) gene is one of the main genes that control serotonergic function.