## Abstract Cyclotides are disulfide rich macrocyclic plant peptides that are defined by their unique topology in which a headβtoβtail cyclized backbone is knotted by the interlocking arrangement of three disulfide bonds. This cyclic cystine knot motif gives the cyclotides exceptional resistance to
Evaluation of tea polyphenols as anti-HIV agents
β Scribed by Fumio Hashimoto; Yoshiki Kashiwada; Gen-ichiro Nonaka; Itsuo Nishioka; Toshihiro Nohara; L.Mark Cosentino; Kuo-Hsiung Lee
- Publisher
- Elsevier Science
- Year
- 1996
- Tongue
- English
- Weight
- 237 KB
- Volume
- 6
- Category
- Article
- ISSN
- 0960-894X
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β¦ Synopsis
Thirty-eight tea polyphenols were evaluated for their inhibitory effect against HIV replication in H9 lymphocyte cells. 8-C-Ascorbyl (-)-epigallocatechin (13) and theasinensin-D (32) demonstrated relatively potent anti-HIV activity with EC50 values of 4 and 8 tlg/mL and therapeutic indexes of 9.5 and 5, respectively.
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## Abstract Among the healthβpromoting effects of tea and tea polyphenols, the cancerβchemopreventive effects in various animal model systems have been intensively investigated; meanwhile, the hypolipidemic and antiobesity effects in animals and humans have also become a hot issue for molecular nut
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