PIPERACEAE Piper methysticum  G.Forst.

 Synonym

  • PIPERACEAE Methysticum methysticum  (G.Forst.) A.Lyons.
 Thai / English name

  • Kava*

[1-1] of 1 article(s) found

 หน้า  1  

[1] EFFECTS OF KAVA ALKALOID, PIPERMETHYSTINE, AND KAVALACTONES ON OXIDATIVE STRESS AND CYTOCHROME P450 IN F-344 RATS.
LIM STS,DRAGULL K,TANG C-S,ET AL.
TOXICOL SCI 2007 Vol.97(1),214-21  $67701 [Full]

Part Used : ใบ
Activity : CYP2D6 INDUCTION
Solvent/Active Compound : Pipermethystine (PM)
Type of experiment : in vivo
Type of animal : rat
Type of study : -
N(Total) : -
N(Treatment) : -
Sex : -
Age : -
Route : Oral administration
Dose/Conc.(herb) : 10 mg/kg/day
Duration : 2 weeks
Type of interaction : Pharmacokinetics
Interaction with drug : -
Dose/Conc.(drug) : -
Result : Negative
Remark : While pipermethystine (PM) alone demonstrated a nonsignificant increase in CYP1A2, Kava rhizome extract (KRE) and PM + KRE significantly increased hepatic CYP1A2 protein levels by 98% (p < 0.05). CYP2E1 was also increased by 40 to 50% in the KRE and PM + KRE groups, while CYP2D6 protein levels were increased in only PM + KRE group by 50%. CYP3A4 protein levels remained unchanged in all groups.
Note : Type of experiment: The rats were randomly split into four treatment groups: (1) control (received corn oil, 3.33 ml/kg/day), (2) pipermethystine (PM) (10 mg/kg/day), (3) Kava rhizome extract (KRE) (100 mg/kg/day equivalent to 63 mg total kavalactones (KL),/kg/day), and (4) PM+ KRE.

Part Used : เหง้า
Activity : CYP2D6 INDUCTION
Solvent/Active Compound : acetone-water extract (KRE)
Type of experiment : in vivo
Type of animal : rat
Type of study : -
N(Total) : -
N(Treatment) : -
Sex : -
Age : -
Route : Oral administration
Dose/Conc.(herb) : 100 mg/kg/day
Duration : 2 weeks
Type of interaction : Pharmacokinetics
Interaction with drug : -
Dose/Conc.(drug) : -
Result : Negative
Remark : While pipermethystine (PM) alone demonstrated a nonsignificant increase in CYP1A2, Kava rhizome extract (KRE) and PM + KRE significantly increased hepatic CYP1A2 protein levels by 98% (p < 0.05). CYP2E1 was also increased by 40 to 50% in the KRE and PM + KRE groups, while CYP2D6 protein levels were increased in only PM + KRE group by 50%. CYP3A4 protein levels remained unchanged in all groups.
Note : Type of experiment: The rats were randomly split into four treatment groups: (1) control (received corn oil, 3.33 ml/kg/day), (2) pipermethystine (PM) (10 mg/kg/day), (3) Kava rhizome extract (KRE) (100 mg/kg/day equivalent to 63 mg total kavalactones (KL),/kg/day), and (4) PM+ KRE.

Part Used : เหง้า
Activity : CYP2D6 INDUCTION
Solvent/Active Compound : Pipermethystine (leaves), acetone-water extract (rhizome)
Type of experiment : in vivo
Type of animal : rat
Type of study : -
N(Total) : -
N(Treatment) : -
Sex : -
Age : -
Route : Oral administration
Dose/Conc.(herb) : PM 10 mg/kg/day + KRE 100 mg/kg/day
Duration : 2 weeks
Type of interaction : Pharmacokinetics
Interaction with drug : -
Dose/Conc.(drug) : -
Result : Positive
Remark : While pipermethystine (PM) alone demonstrated a nonsignificant increase in CYP1A2, Kava rhizome extract (KRE) and PM + KRE significantly increased hepatic CYP1A2 protein levels by 98% (p < 0.05). CYP2E1 was also increased by 40 to 50% in the KRE and PM + KRE groups, while CYP2D6 protein levels were increased in only PM + KRE group by 50%. CYP3A4 protein levels remained unchanged in all groups.
Note : Type of experiment: The rats were randomly split into four treatment groups: (1) control (received corn oil, 3.33 ml/kg/day), (2) pipermethystine (PM) (10 mg/kg/day), (3) Kava rhizome extract (KRE) (100 mg/kg/day equivalent to 63 mg total kavalactones (KL),/kg/day), and (4) PM+ KRE.

Part Used : ใบ
Activity : CYP2D6 INDUCTION
Solvent/Active Compound : Pipermethystine (leaves), acetone-water extract (rhizome)
Type of experiment : in vivo
Type of animal : rat
Type of study : -
N(Total) : -
N(Treatment) : -
Sex : -
Age : -
Route : Oral administration
Dose/Conc.(herb) : PM 10 mg/kg/day + KRE 100 mg/kg/day
Duration : 2 weeks
Type of interaction : Pharmacokinetics
Interaction with drug : -
Dose/Conc.(drug) : -
Result : Positive
Remark : While pipermethystine (PM) alone demonstrated a nonsignificant increase in CYP1A2, Kava rhizome extract (KRE) and PM + KRE significantly increased hepatic CYP1A2 protein levels by 98% (p < 0.05). CYP2E1 was also increased by 40 to 50% in the KRE and PM + KRE groups, while CYP2D6 protein levels were increased in only PM + KRE group by 50%. CYP3A4 protein levels remained unchanged in all groups.
Note : Type of experiment: The rats were randomly split into four treatment groups: (1) control (received corn oil, 3.33 ml/kg/day), (2) pipermethystine (PM) (10 mg/kg/day), (3) Kava rhizome extract (KRE) (100 mg/kg/day equivalent to 63 mg total kavalactones (KL),/kg/day), and (4) PM+ KRE.


 หน้า  1