title: [Advance in studies on chemical constituents and pharmacological activity of lichens in Usnea genus].
abstract: OBJECTIVE
  To summarize the studies on chemical constituents and pharmacological activities of lichens of Usnea genus.
  
  
  METHODS
  A systematic literature survey was conducted to classifiy and summarize chemical constituents of lichens of Usnea genus, and sum up current studies on main pharmacological activities of lichens of the genus.
  
  
  RESULTS
  Lichens of Usnea genus contained multiple chemical constituents, primarily including mono-substituted phenyl rings, depsides, anthraquinones, dibenzofurans, steroids, terpenes, fatty acids and polysaccharides, with such biological activities as antitumor, antibacterial, anti-inflammation, anti-oxidation and antithrombosis.
  
  
  CONCLUSIONS
  This essay provides reference for further studies and development of lichens of Usnea genus.
authors.affiliation: Engineering Research Center of Edible and Medicinal Fungi under Ministry of Education, Jilin Agricultural University, Changchun 130118, China. namujila@126.com
authors.lastname: Laxinamujila
authors.forename: Hai-Ying
authors.initials: HY
authors.lastname: Bao
authors.forename: Tolgor
authors.initials: T
authors.lastname: Bau
mesh_terms: D000818:Animals; D006801:Humans; D008516:Medicine, Chinese Traditional / Q000379:methods*; D009930:Organic Chemicals / Q000737:chemistry / Q000494:pharmacology; D020949:Usnea / Q000737:chemistry*
chemical_list: D009930:Organic Chemicals