macrothelypteris/krabbamein

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In vitro and in vivo antitumor activity of Macrothelypteris torresiana and its acute/subacute oral toxicity.

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The aim of this study was to evaluate the antitumor potential of Macrothelypteris torresiana by studying in vitro antitumor activity of the protoapigenone, as well as in vivo antitumor activity and acute/subacute oral toxicity of the total flavonoid fraction from the roots of M. torresiana.

Anti-tumor and anti-angiogenic effects of Macrothelypteris viridifrons and its constituents by HPLC-DAD/MS analysis.

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BACKGROUND Macrothelypteris viridifrons is widely distributed in south of China and has been used as folk medicine to treat cancer, hydropsy, and traumatic bleeding. OBJECTIVE To investigate the chemical constituents and the anti-tumor and anti-angiogenic effects of Macrothelypteris

New cytotoxic flavonoids from Thelypteris torresiana.

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During our search for anti-tumor agents from pteridophytes, three new flavonoids, protoapigenone (1), 5',6'-dihydro-6'-methoxyprotoapigenone (2), and protoapigenin (3), along with four known compounds, protoapigenin 4'- O-beta- D-glucoside (4), apigenin 4'- O-beta- D-glucoside (5), kaempferol 3-

The antagonism between apigenin and protoapigenone to the PDK-1 target in Macrothelypteris torresiana.

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Apigenin and protoapigenone that both have the activities against various cancer cell lines co-exist in Macrothelypteris torresiana, while the extracts of M. torresiana couldn't achieve the fine anti-tumor effects for the existence of potent anti-tumor compounds. This study disclosed an antagonism

Preparation of magnetic molecularly imprinted polymers for selective isolation and determination of kaempferol and protoapigenone in Macrothelypteris torresiana.

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Novel uniform-sized magnetic molecularly imprinted polymers (MMIPs) were synthesized for selective recognition of active antitumor ingredients of kaempferol (KMF) and protoapigenone (PA) in Macrothelypteris torresiana (M. torresiana) by surface molecular imprinting technique in this study. Super

DICO, a novel nonaromatic B-ring flavonoid, induces G2/M cell cycle arrest and apoptosis in human hepatoma cells.

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DICO was a novel nonaromatic B-ring flavonoid obtained from Macrothelypteris torresiana. In the present work, we investigated the antitumor activity and the antineoplastic mechanism of DICO. Our study showed that DICO inhibited the growth of HepG2 cells in dose and time-dependent manners. As well as

Fern plant-derived protoapigenone leads to DNA damage, apoptosis, and G(2)/m arrest in lung cancer cell line H1299.

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Protoapigenone, isolated from the native fern plant Thelypteris torresiana, has anticancer activity against some cancer cells. However, the toxicological mechanism for protoapigenone is still unknown. Here, we investigated the anticancer effect of protoapigenone on human lung cancer cell lines. The

Protoapigenone derivatives: albumin binding properties and effects on HepG2 cells.

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Protoapigenone (Pa) is a flavone aglycone with a p-quinol structure in its B-ring. It was first discovered in Thelypteris torresiana, a native fern in Taiwan. Recent studies highlighted that protoapigenone and some of its derivatives show very potent anticancer activity against several types of

[Flavonoids with special B-ring from Macrothelypteris viridifrons and their anti-proliferative effects on tumor cell].

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OBJECTIVE To study the chemical constituents of Macrothelypteris viridifrons and their anti-proliferative effects on tumor cell. METHODS The compounds were isolated by column chromatography with silica gel, C18 reverse-phase silica gel, sephadex LH-20, and their structures were elucidated on the

HPLC analysis, optimization of extraction and purification conditions, biological evaluation of total protoflavones from Macrothelypteris viridifrons.

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The present study aims to evaluate phytochemical and pharmacological potential of total protoflavones from Macrothelypteris viridifrons. In the phytochemical study, an HPLC analysis method was established, and the optimal extraction and purification conditions were analyzed. The extractive condition

A novel non-aromatic B-ring flavonoid: isolation, structure elucidation and its induction of apoptosis in human colon HT-29 tumor cell via the reactive oxygen species-mitochondrial dysfunction and MAPK activation.

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The aim of the present study was to elucidate the chemical structure of a novel non-aromatic B-ring flavonoid (DHEC) isolated from Macrothelypteris viridifrons and to evaluate its putative molecular mechanism of action on induction of apoptosis in human colon HT-29 cancer cell. On the basis of MS,

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