Psoriasis and IgE-mediated allergy: correlation or mutual inhibition? : A prospective cohort study in patients with mild or moderate to severe psoriasis.

Background: Psoriasis is an autoimmune disease caused by overactivation of T1 (Type 1 helper cells) and T17 (T helper 17) cells. Overactivation of T1 cells inhibits the activity of T2 cells involved in type 1 allergies, therefore, psoriasis patients might be less affected by type 1 allergies. This study tested if allergies were less frequent in patients with moderate to severe than with mild psoriasis.

Lessons of the month 3: Intravenous poppers abuse: case report, management and possible complications.

Background: Poppers are nitrite-containing liquids, which are inhaled for their aphrodisiac and hallucinogenic effects. Despite some cases of severe poisonings, poppers are often perceived as harmless by consumers. Inhalation and ingestion of poppers are well known, but, according to our literature review, intravenous abuse has not been reported before.