Articles: PubMed:Purification of Cu/Zn Superoxide Dismutase from Piper betle Leaf and Its Characterization in the Oral Cavity. PubMed:Piper betle leaf extract enhances the cytotoxicity effect of 5-fluorouracil in inhibiting the growth of HT29 and HCT116 colon cancer cells. PubMed:Areca nut components affect COX-2, cyclin B1/cdc25C and keratin expression, PGE2 production in keratinocyte is related to reactive oxygen species, CYP1A1, Src, EGFR and Ras signaling. PubMed:Inhibitory effect of Piper betle Linn. leaf extract on protein glycation--quantification and characterization of the antiglycation components. PubMed:Piper betle leaves: profiling phenolic compounds by HPLC/DAD-ESI/MS(n) and anti-cholinesterase activity. PubMed:Ethanolic extract of Piper betle Linn. leaves reduces nociception via modulation of arachidonic acid pathway. PubMed:Piper betle shows antioxidant activities, inhibits MCF-7 cell proliferation and increases activities of catalase and superoxide dismutase. PubMed:Protective effect of Piper betle leaf extract against cadmium-induced oxidative stress and hepatic dysfunction in rats. PubMed:Hydroxychavicol, a Piper betle leaf component, induces apoptosis of CML cells through mitochondrial reactive oxygen species-dependent JNK and endothelial nitric oxide synthase activation and overrides imatinib resistance. PubMed:Insights into the mechanism of Piper betle leaf-induced contact leukomelanosis using C57BL/6 mice as the animal model and tyrosinase assays. PubMed:Antimalarial activity of methanolic leaf extract of Piper betle L. PubMed:Effect of Piper betle on cardiac function, marker enzymes, and oxidative stress in isoproterenol-induced cardiotoxicity in rats. PubMed:Modulation of ionizing radiation induced oxidative imbalance by semi-fractionated extract of Piper betle: an in vitro and in vivo assessment. PubMed:In vitro antifungal activity of hydroxychavicol isolated from Piper betle L. PubMed:The n-hexane and chloroform fractions of Piper betle L. trigger different arms of immune responses in BALB/c mice and exhibit antifilarial activity against human lymphatic filarid Brugia malayi. PubMed:Effect of Piper betle on plasma antioxidant status and lipid profile against D-galactosamine-induced hepatitis in rats. PubMed:Consumption of guava (Psidium guajava L) and noni (Morinda citrifolia L) may protect betel quid-chewing Papua New Guineans against diabetes. PubMed:Influence of Piper betle on hepatic marker enzymes and tissue antioxidant status in D-galactosamine-induced hepatotoxic rats. PubMed:Availability and characteristics of betel products in the U.S. PubMed:Anti-inflammatory effect of allylpyrocatechol in LPS-induced macrophages is mediated by suppression of iNOS and COX-2 via the NF-kappaB pathway. PubMed:Cytokine-mimetic properties of some Philippine food and medicinal plants. PubMed:Ingredients contribute to variation in production of reactive oxygen species by areca quid. PubMed:Protection effect of piper betel leaf extract against carbon tetrachloride-induced liver fibrosis in rats. PubMed:Increased sensitivity of Hep G2 cells toward the cytotoxicity of cisplatin by the treatment of piper betel leaf extract. PubMed:Radioprotective property of the ethanolic extract of Piper betel Leaf. PubMed:Effects of aqueous extracts of "Betel quid" and its constituents on testosterone production by dispersed mouse interstitial cells. PubMed:Effect of ethanol extract of Piper betle Linn leaf on healing of NSAID-induced experimental ulcer--a novel role of free radical scavenging action. PubMed:Effect of Piper betle leaf extract on alcoholic toxicity in the rat brain. PubMed:Antioxidative and antiplatelet effects of aqueous inflorescence Piper betle extract. PubMed:Larvicidal effects of mineral turpentine, low aromatic white spirits, aqueous extracts of Cassia alata, and aqueous extracts, ethanolic extracts and essential oil of betel leaf (Piper betle) on Chrysomya megacephala. PubMed:Antioxidant and non-toxic properties of Piper betle leaf extract: in vitro and in vivo studies. PubMed:Modulation of platelet aggregation by areca nut and betel leaf ingredients: roles of reactive oxygen species and cyclooxygenase. PubMed:Potent antiulcerogenic activity of ethanol extract of leaf ofPiper betle Linn by antioxidative mechanism. PubMed:Inhibitory effect of betel quid on the volatility of methyl mercaptan. PubMed:Pre-clinical toxicity evaluation of leaf-stalk extractive of Piper betle Linn. in rodents. PubMed:The reversible antifertility effect of Piper betle Linn. on Swiss albino male mice. PubMed:Inhibitory action of Piper betle on the initiation of 7,12-dimethylbenz[a]anthracene-induced mammary carcinogenesis in rats. PubMed:Effect of Piper betle L. and its extracts on the growth and aflatoxin production by Aspergillus parasiticus. PubMed:Antifertility effect of betal leaf stalk (Tambul patrabrint): a preliminary experimental study.