[The effects of twenty-one traditional Chinese medicines on tyrosinase].
OBJECTIVE
To study the effects of 21 kinds of traditional Chinese medicines on tyrosinase.


METHODS
The catalytic reactive velocity of tyrosinase was determined by vision spectrophotometry so as to evaluate the upregulation of traditional Chinese medicines extracts.


RESULTS
21 time-curves of catalytic reaction of tyrosinase were obtained.


CONCLUSIONS
13 kinds of traditional Chinese medicines extracts in vitro showed a upregulation to tyrosinase activity (P < 0.01). Scutellaria baicalensis and Cremastra appendiculata showed a better upregulation to tyrosinase activity.
Yan
Jun
J
Jinan City Hospital for Skin Diseases Prevention, Jinan 250001, China.
Li
Changsheng
C
Chen
Shengli
S
Zhang
Junren
J
Zhao
Tianen
T
D002384:Catalysis; D004365:Drugs, Chinese Herbal / Q000145:classification / Q000302:isolation & purification / Q000494:pharmacology*; D004789:Enzyme Activation; D007700:Kinetics; D007980:Levodopa / Q000737:chemistry / Q000378:metabolism; D014442:Monophenol Monooxygenase / Q000737:chemistry / Q000378:metabolism*; D010946:Plants, Medicinal / Q000737:chemistry*; D013053:Spectrophotometry / Q000379:methods; D013997:Time Factors
D004365:Drugs, Chinese Herbal; D007980:Levodopa; D014442:Monophenol Monooxygenase