Kava Powder Extract |
|
Latin Name |
Piper Methysticum L. |
Active ingredients
|
Kavalactones |
synonyms |
Ava Pepper, Ava Root, Awa, Gea, Gi, Intoxicating Long
Pepper, Intoxicating Pepper, Kao, Kavain, Kavapipar, Kawa, Kawa Kawa, Kawa
Pepper, Kawapfeffer, Kew, Lawena, Long Pepper, Malohu, Maluk, Maori Kava,
Meruk, Milik, Piper methysticum, Poivre des Cannibales, Poivre des Papous,
Rauschpfeffer, Rhizome Di Kava-Kava, Sakau, Tonga, Waka, Wurzelstock, Yagona,
Yangona, Yaqona, Yaquon, Yongona. |
Appearance |
Light brown fine powder |
Part used |
Root |
Specification |
Kavalactones 5% -30% |
Dosage |
240-480mg daily |
Main benefits |
Antianxiety, Insomnia |
Applied industries |
Medicine, food additive, dietary supplement, sports nutrition |
What is Kava Powder Extract?
Kava is a tall shrub that grows in the islands of the Pacific Ocean. In Fiji, the plant is called "yaquona," in Hawaii, it's known as "awaj," and in Aboriginal tribes, it's referred to as "grog." This shrub produces large, green, heart shaped leaves that grow thickly on the branches. Long, slender flowers grow where the branches meet the stems. The roots look like bundles of woody, hairy branches. The root is the part of the plant used medicinally.
Kava is also known as Piper methysticum,
awa, kava-kava, kew, tonga, ava, ava pepper, intoxicating pepper, kawa, kava
pepper, kava root, rauschpfeffer, sakau, tonga, wurzelstock, and yangona.
Kava has been used to induce and improve sleep, and to decrease anxiety, nervousness, stress, and restlessness.
Chemical constituents of Kava Powder Extract
Kava's active principal ingredients are the kavalactones, of which at least 15 have been identified and are all considered psychoactive. Only six of them produce noticeable effects, and their concentrations in kava plants vary.
Kavalactones contained in the resin are
α-pyrones bearing a methoxyl group at C-4 and an aromatic styryl moiety at C-6.
They include kavain, 7,8-dihydrokavain, 5,6-dehydrokavain, yangonin,
5,6,7,8-tetrahydroyangonin, methysticin, dihydromethysticin, 5,6-dehydromethy
sticin, 5,6-dihydroyangonin, 7,8-dihydroyangonin, 10-methoxy-yangonin, 11-methoxy-yangonin,
11-hydroxy-yangonin, hydroxykavain, and 11-methoxy-l2-hydroxy-dehydrokavain,
and 11-methoxy-5,6-dihydroyangonin.
The rootstock also contains flavokavins
A–C; piperidine alkaloids pipermethystin, cepharadione A, and awaine; ketones
including cinnamalaketone and methylenedioxy-3,4-cinnamalaketone; an alcohol,
dihydrokavain-5-ol; minerals including potassium, calcium, magnesium, sodium,
aluminum, iron, and silica; sugars include saccharose, maltose, fructose, and
glucose; over 15 amino acids; and others.
Benefits of taking Kava Powder Extract
supplements:
Kava and anxiety
>Kava in the treatment of generalized anxiety disorder: a double-blind, randomized, placebo-controlled study.
(Source-Department of Psychiatry,
University of Melbourne, Melbourne, Victoria, Australia. )
Abstract
Kava (Piper methysticum) is a plant-based
medicine, which has been previously shown to reduce anxiety. To date, however,
no placebo-controlled trial assessing kava in the treatment of generalized
anxiety disorder (GAD) has been completed. A total of 75 participants with GAD
and no comorbid mood disorder were enrolled in a 6-week double-blind trial of
an aqueous extract of kava (120/240 mg of kavalactones per day depending on
response) versus placebo. γ-Aminobutyric acid (GABA) and noradrenaline
transporter polymorphisms were also analyzed as potential pharmacogenetic
markers of response. Reduction in anxiety was measured using the Hamilton
Anxiety Rating Scale (HAMA) as the primary outcome. Intention-to-treat analysis
was performed on 58 participants who met inclusion criteria after an initial 1
week placebo run-in phase. Results revealed a significant reduction in anxiety
for the kava group compared with the placebo group with a moderate effect size
(P = 0.046, Cohen d = 0.62). Among participants with moderate to severe
Diagnostic and Statistical Manual of Mental Disorders-diagnosed GAD, this
effect was larger (P = 0.02; d = 0.82). At conclusion of the controlled phase,
26% of the kava group were classified as remitted (HAMA ≤ 7) compared
with 6% of the placebo group (P = 0.04). Within the kava group, GABA
transporter polymorphisms rs2601126 (P = 0.021) and rs2697153 (P = 0.046) were
associated with HAMA reduction. Kava was well tolerated, and aside from more
headaches reported in the kava group (P = 0.05), no other significant
differences between groups occurred for any other adverse effects, nor for
liver function tests. Standardized kava may be a moderately effective
short-term option for the treatment of GAD. Furthermore, specific GABA
transporter polymorphisms appear to potentially modify anxiolytic response to
kava.
Kava and Cancer
Flavokawain B, a kava chalcone, inhibits
growth of human osteosarcoma cells through G2/M cell cycle arrest and
apoptosis.
(Source-Department of Orthopaedic Surgery,
UC Irvine Multidisciplinary Sarcoma Center, Chao Family Comprehensive Cancer
Center, University of California, Irvine, USA.)
Abstract
BACKGROUND:
Osteosarcoma (OS) is the most common
primary bone malignancy with a high propensity for local invasion and distant
metastasis. Limited by the severe toxicity of conventional agents, the
therapeutic bottleneck of osteosarcoma still remains unconquered. Flavokawain B
(FKB), a kava extract, has been reported to have significant anti-tumor effects
on several carcinoma cell lines both in vitro and in vivo. Its efficacy and low
toxicity profile make FKB a promising agent for use as a novel chemotherapeutic
agent.
RESULTS:
In the current study, we investigated the
anti-proliferative and apoptotic effects of FKB against human osteosarcomas.
Exposure of OS cells to FKB resulted in apoptosis, evidenced by loss of cell
viability, morphological changes and the externalization of phosphatidylserine.
Apoptosis induced by FKB resulted in activation of Caspase-3/7, -8 and -9 in OS
cell lines, 143B and Saos-2. FKB also down-regulated inhibitory apoptotic
markers, including Bcl-2 and Survivin and led to concomitant increases in apoptotic
proteins, Bax, Puma and Fas. Therefore, the induction of apoptosis by FKB
involved both extrinsic and intrinsic pathways. FKB also caused G2/M phase cell
cycle arrest, which was observed through reductions in the levels of cyclin B1,
cdc2 and cdc25c and increases in Myt1 levels. Furthermore, migration and
invasion ability was decreased by FKB in a dose-dependent manner. The
cytotoxicity profile showed FKB had significant lower side effects on bone
marrow cells and small intestinal epithelial cells compared with Adriamycin.
CONCLUSIONS:
Taken together, our evidence of apoptosis and cell cycle arrest by FKB treatment with less toxicity than the standard treatments provides an innovative argument for the use of FKB as a chemotherapeutic and chemopreventive compound. In vivo experiments utilizing FKB to reduce tumorigenesis and metastatic potential will be crucial to further justify clinical application.
Other
use
>Anxiety.
>Anxiety in women going through
menopause.
>Stress,
>insomnia
>psychosis
>depression
>headaches
>chronic bladder infections
Side effects and safety of Kava Powder Extract
Stop taking kava and seek emergency medical attention if you have liver symptoms such as nausea, stomach pain, loss of appetite, itching, dark urine, clay-colored stools, or jaundice (yellowing of the skin or eyes).
Dosage of Kava Powder Extract supplement:
Many Kava Powder Extract supplements recommend a dosage of around 240 mg to 480 mg.
Consult your physician if you have any questions about the proper use of Kava Powder Extract supplements.
Nutragreen Biotechnology Co., Ltd, a brand of Shanghai Lvshang Biotech Co., Ltd, is a GMP compliant and FDA registered manufacturer and supplier of raw materials of plant extracts, botanicals, herbs, especially Tradtional Chinese herbs. Kava Powder Extract is one of our most competitive ingredients with various specifications and stocks available all year round. You may leave a message below for more detailed information.