Saturday, September 11, 2010

Euphorbia Hirta ( tawa-tawa )

Euphorbia Hirta ( tawa-tawa ). Tawa-tawa has found new interest for (tawa-tawa) for its use in dengue, with increasing 'platelets' anecdotal reports of "cures."
Studies
• Anti-Diabetic / Lipid Effect: Study of ethanolic extracts of leaf, flower and stem on streptozotocin-induced diabetic mice showed significant reduction in blood glucose levels. Biochem effects showed significant decreases in serum cholesterol with elevation of HDL. Results showed EH has antidiabetic action and suggests further study for isolation of responsible compound.
• Antibacterial: (1) Antibacterial Activities And Toxicological Potentials Of Crude Ethanolic Extracts Of Euphorbia hirta: The study showed the ethanolic extract to inhibit the growth of test isolates except Salmonella typhi. The antibacterial effect was attributed to the presence of alkaloids, tannins and flavonoids which have been shown to have antibacterial properties. The results support its use in traditional medicine. (2) Study on the antibacterial effect of compounds extracted from C sinensis and the methanol extract of E hirta against dysentery causing Shigella spp showed the extracts to be non-cytotoxic and effective antibacterial agents.
• Diuretic: Euphorbia hirta leaf extracts increase urine output and electrolytes in rats: Studty suggests that the active components in the water extract of E. hirta leaf had similar diuretic effect as that of acetazolamide. The results validate its traditional use as a diuretic by the Swahilis and Sukumas.
• Anti-Allergic: Inhibition of early and late phase allergic reactions by Euphorbia hirta L: Study demonstrated that E. hirta possessed significant activity to prevent early and late phase allergic reactions.
• Anthelmintic: Anthelmintic efficacy of the aqueous crude extract of Euphorbia hirta Linn in Nigerian dogs: Extract of E. hirta Study reduced the fecal egg count of the helminths and suggests a potential as an anthelmintic agent.
• Antihypertensive / ACE Inhibition: Angiotensin converting enzyme inhibiting and anti-dipsogenic activities of Euphorbia hirta extracts: Study showed the extract from leaves and stems inhibited the activity of angiotensin-converting enzyme (ACE).
• Anxiolytic: Euphorbia hirta showed an activity profile different from that of benzodiazepines. Study showed a central depressant and sedating effect with no hypnotic or neuroleptic effects.
• Antidiarrheal: Study investigated the antidiarrhoeic activity of Euphorbia hirta extract. An active flavonoid constituent, quercitin, was isolated; it show anti-diarrheic activity
• Antibacterial / Antifungal: The ethanol extract was analyzed for antimicrobila activitity against S aureus, B cereus, S typhi, K pneumonia, P aeruginosa and fungus species A niger, A fumigatus, A flavus and R oryzae. Study of leaves isolated tannins, flavonoids, alklaloids, glycosides, proteins, sterols and saponins. Antimicrobial activity was attributed to one of these constituents. Leaves collected from August to December showed more significant antimicrobial activity.
• Galactogenic: E hirta study in female guinea pigs increased the development of mammary glands and induced secretion.
• Antifertility: E hirta has been shown to decrease sperm motility, density of cauda epididymal and testis sperm suspension with 100% infertility.
• Anti-Malarial / Flavonol Glycosides: Study of aerial parts isolated flavonol glycosides afzelin, quercitin and myricitrin. The three compounds showed inhibition of proliferation of Plasmodium falcifarum.
• Anti-Inflammatory: n-hexane extract of aerial parts and its main triterpene constituents showed significant and dose-dependent anti-inflammatory activity.
• Anticancer / Antiproliferative: (1) Studies of extracts of E hirta have shown selective cytotoxicity against several cancer line. (2) Extracts screened showed anti-proliferativce activities against normal mouse fibroblast cells.
• Antioxidant: Studies of methanol and water extracts showed antioxidant activities comparable to that of green and black teas.

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