title: Case report: purple urine bag syndrome.
abstract: Purple urine bag syndrome (PUBS) was first reported in 1978. PUBS is rare, occurs predominantly in constipated women, chronically catheterized and associated with some bacterial urinary infections that produce sulphatase/phosphatase. The etiology is due to indigo (blue) and indirubin (red) or to their mixture that becomes purple. A chain reaction begins in the gastrointestinal tract with tryptophan as described in the article.
authors.affiliation: Intensive Care Unit, Curry Cabral Hospital, Lisbon, Portugal. vanessaribeiro@vizzavi.pt
authors.forename: Joaquim Palmeiro
authors.initials: JP
authors.lastname: Ribeiro
authors.forename: Paulo
authors.initials: P
authors.lastname: Marcelino
authors.forename: Susan
authors.initials: S
authors.lastname: Marum
authors.forename: Ana Paula
authors.initials: AP
authors.lastname: Fernandes
authors.forename: Ana
authors.initials: A
authors.lastname: Grilo
mesh_terms: D002408:Catheters, Indwelling / Q000009:adverse effects*; D005260:Female; D006801:Humans; D007200:Indican / Q000652:urine; D007203:Indigo Carmine; D007211:Indoles / Q000652:urine*; D008875:Middle Aged; D013577:Syndrome; D014364:Tryptophan / Q000378:metabolism; D014546:Urinary Catheterization / Q000009:adverse effects*; D014552:Urinary Tract Infections / Q000209:etiology / Q000382:microbiology* / Q000652:urine; D014556:Urine / Q000737:chemistry / Q000382:microbiology*
chemical_list: D007211:Indoles; D014364:Tryptophan; D007203:Indigo Carmine; D007200:Indican; C027185:indirubin