NS3/4A protease of hepatitis C virus (HCV) plays an important role in viral RNA replication. A 1,4-diphenylbutanedicarboxylic acid derivative, namely, phyllanthin, extracted from the leaf of a herbal plant, Phyllanthus amarus, inhibits HCV NS3/4A protease and replication activities. However,
Tumor metastasis is the most important cause of cancer death and various treatment strategies have targeted at preventing the occurrence of metastasis. Phyllanthus urinaria L is a popular folk medicine and has several proven biological properties, including antioxidant, antihypertension, and
Phyllanthin and related lignans were found to be responsible, at least in part, for most of the activity of Phyllanthus species. This observation encouraged the authors to develop methods for the preparation of an extract rich in phyllanthin and related lignans from the aerial parts of P.
Hepatitis C virus (HCV) infection causes chronic liver disease, which often leads to hepatocellular carcinoma. Earlier, we have demonstrated anti-HCV property of the methanolic extract of Phyllanthus amarus, an age-old folk-medicine against viral hepatitis. Here, we report identification of a
Phyllanthus amarus derived preparations were previously shown to inhibit RT inhibitor-resistant HIV variants as efficiently as wild-type strains. The drugs target different steps of the HIV life cycle, thereby presenting multiple antiviral activities. Here we show that a water/alcohol extract blocks
Hepatitis C virus infection is a major health problem worldwide. Developing effective antiviral therapy for HCV is the need of the hour. The viral enzymes NS3 protease and NS5B RNA dependent RNA polymerase are essential enzymes for polyprotein processing and viral RNA replication and thus can be
A prolyl endopeptidase inhibitor was isolated from the ethyl acetate soluble fraction of Phyllanthus ussurensis. The active compound was identified as an ellagitannin, corilagin. It was shown to non-competitively inhibit prolyl endopeptidase (PEP) with the IC50 value of 1.17x10(-6) microM. The Ki
Phyllanthus urinaria is widely used as anti-inflammatory, antiviral, antibacterial, and anti-hepatotoxic medicines in almost every tropical country. However, scientific evidence supporting its use in cancer metastasis is limited, particularly osteosarcoma. We investigated the effect of P. urinaria
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