包装: | 100ug |
规格: | 98% |
市场价: | 5186元 |
分子量: | 897.1 |
Background:
Brevetoxin 3 is a neurotoxin produced by the dinoflagellateK. brevis.1,2It binds to site 5 of voltage-gated sodium channels (Navs), prolonging the mean open time and inhibiting inactivation of these channels.2Brevetoxin 3 induces the release of lactate dehydrogenase (LDH), L-glutamate, and L-aspartate from primary rat cerebellar granule neurons (CGNs; EC50s = 30.9, 45.3, and 50.2 nM, respectively).3It induces convulsions in, and is lethal to (LD50= 4 ng/egg), Japanese rice fish embryos.1Brevetoxin 3 has been found in water samples collected during red tide blooms.4
1.Colman, J.R., and Ramsdell, J.S.The type B brevetoxin (PbTx-3) adversely affects development, cardiovascular function, and survival in Medaka (Oryzias latipes) embryosEnviron. Health Perspect.111(16)1920-1925(2003) 2.Jeglitsch, G., Rein, K.S., Baden, D.G., et al.Brevetoxin-3 (PbTx-3) and its derivatives modulate single tetrodotoxin-sensitive sodium channels in rat sensory neuronsJ. Pharmacol. Exp. Ther.284(2)516-525(1997) 3.Berman, F.W., and Murray, T.F.Brevetoxins cause acute excitotoxicity in primary cultures of rat cerebellar granule neuronsJ. Pharmacol. Exp. Ther.290(1)439-444(1999) 4.Pierce, R.H., and Henry, M.S.Harmful algal toxins of the Florida red tide (Karenia brevis): Natural chemical stressors in South Florida coastal ecosystemsEcotoxicology17(7)623-631(2008)