2015
DOI: 10.1080/10286020.2015.1056521
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A new bioactive steroidal ketone from the South China Sea sponge Xestospongia testudinaria

Abstract: A new steroidal ketone (1), with an ergosta-22,25-diene side chain, was obtained from the South China Sea marine sponge Xestospongia testudinaria. The structure of 1 was determined on the basis of detailed spectroscopic analysis and by comparison with literature. Compound 1 exhibited significant inhibitory activity against protein tyrosine phosphatase 1B (PTP1B), a key target for the treatment of type II diabetes and obesity, with an IC50 value of 4.27 ± 0.55 μM, which is comparable with the positive control o… Show more

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Cited by 17 publications
(9 citation statements)
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“…465) from a Myrmekioderma sponge and four reports of sterols and sterol esters 985-1000 (ref. [466][467][468][469] were made from Xestospongia and Topsentia sponges in 2016; compounds 994 and 995 had been synthesised previously. 470,471 Only two triterpenoid structures were published in 2016, one 1001 from Jaspis stellifera, 472 and the other 1002 from a Lipastrotethya sp.…”
Section: Spongesmentioning
confidence: 99%
“…465) from a Myrmekioderma sponge and four reports of sterols and sterol esters 985-1000 (ref. [466][467][468][469] were made from Xestospongia and Topsentia sponges in 2016; compounds 994 and 995 had been synthesised previously. 470,471 Only two triterpenoid structures were published in 2016, one 1001 from Jaspis stellifera, 472 and the other 1002 from a Lipastrotethya sp.…”
Section: Spongesmentioning
confidence: 99%
“…Table 2 reports new drugs and drug derivatives obtained by different marine organisms proposed in anti-obesity treatment [62,63,64,65,66,67,68,69,70,71,72,73,74,75,76,77,78,79,80,81,82,83,84,85,86,87,88,89,90,91,92,93,94]. …”
Section: Treatment Of Obesitymentioning
confidence: 99%
“…In the first phase of selection, four studies were excluded because of having not full-text access [21,22,23,24]. It is also noteworthy that two randomized double-blind controlled trials that studied the effects of virgin olive oils enriched with bioactive compounds, such as phenolic compounds and different triterpenes on MetS and oxidative stress were found in the first phase of selection [25,26].…”
Section: Resultsmentioning
confidence: 99%