Protein Information

Name sodium channel (protein family or complex)
Synonyms Sodium channel

Compound Information

Name allethrin
CAS 2-methyl-4-oxo-3-(2-propen-1-yl)-2-cyclopenten-1-yl 2,2-dimethyl-3-(2-methyl-1-propen-1-yl)cyclopropanecarboxylate

Reference List

PubMed Abstract RScore(About this table)
6286960 Narahashi T: Modulation of nerve membrane sodium channels by chemicals. J Physiol. 1981 May;77(9):1093-101.

The tail current associated with step repolarization during the slow current in grayanotoxins decays with a dual exponential time course. 5. (+)-trans tetramethrin and (+)-trans allethrin also modify a fraction of sodium channel population in generating a slow current, which attains a maximum slowly and decays very slowly during a maintained depolarizing step.
84(1,1,1,4) Details
6292640 Abbassy MA, Eldefrawi ME, Eldefrawi AT: Allethrin interactions with the nicotinic acetylcholine receptor channel. Life Sci. 1982 Oct 11;31(15):1547-52.

The high affinity binding of allethrin to the channel sites of the nicotinic ACh-receptor may be indicative of a postsynaptic site of action for pyrethroids, in addition to their known action on the sodium channel.
81(1,1,1,1) Details
8298967 Ginsburg KS, Narahashi T: Differential sensitivity of tetrodotoxin-sensitive and tetrodotoxin-resistant sodium channels to the insecticide allethrin in rat dorsal root ganglion neurons. Brain Res. 1993 Nov 12;627(2):239-48.

In the tetrodotoxin-sensitive sodium channel currents, these changes caused by allethrin were much smaller or negligible.
6(0,0,1,1) Details
1281937 Narahashi T, Frey JM, Ginsburg KS, Roy ML: Sodium and GABA-activated channels as the targets of pyrethroids and cyclodienes. Toxicol Lett. 1992 Dec;64-65 Spec No:429-36.

The type I pyrethroid allethrin and the type II pyrethroid deltamethrin were both effective in prolonging the sodium current in the TXX-resistant sodium channel but had only a small effect on the TTX-sensitive sodium channel.
6(0,0,1,1) Details
2433987 Narahashi T: Toxins that modulate the sodium channel gating mechanism. . Ann N Y Acad Sci. 1986;479:133-51.

In the presence of type I pyrethroids which lack a cyano group at the alpha position (e.g., allethrin and tetramethrin), a large steady-state sodium current appears during a step depolarization and a large slowly decaying sodium tail current appears upon repolarization.
5(0,0,0,5) Details
7854588 Narahashi T, Roy ML, Ginsburg KS: Recent advances in the study of mechanism of action of marine neurotoxins. Neurotoxicology. 1994 Fall;15(3):545-54.

The pyrethroid insecticide allethrin modifies tetrodotoxin-resistant sodium channels while affecting tetrodotoxin-sensitive sodium channels to a much lesser extent.
Tetrodotoxin and saxitoxin block the sodium channel selectively without any effect on other types of voltage-activated and transmitter-activated ion channels.
4(0,0,0,4) Details
1336116 Gusovsky F, Padgett WL, Creveling CR, Daly JW: Interaction of pumiliotoxin B with an "alkaloid-binding domain" on the voltage-dependent sodium channel. Mol Pharmacol. 1992 Dec;42(6):1104-8.

Both a type I pyrethroid (allethrin) and a type II pyrethroid (fenvalerate) inhibit PTX-B- and PTX-B/alpha-scorpion toxin-mediated 22Na+ influx.
3(0,0,0,3) Details
19766671 Breckenridge CB, Holden L, Sturgess N, Weiner M, Sheets L, Sargent D, Soderlund DM, Choi JS, Symington S, Clark JM, Burr S, Ray D: Evidence for a separate mechanism of toxicity for the Type I and the Type II pyrethroid insecticides. Neurotoxicology. 2009 Nov;30 Suppl 1:S17-31. Epub 2009 Sep 18.

Neurotoxicity and mechanistic data were collected for six alpha-cyano pyrethroids (beta-cyfluthrin, cypermethrin, deltamethrin, esfenvalerate, fenpropathrin and lambda-cyhalothrin) and up to six non-cyano containing pyrethroids (bifenthrin, S-bioallethrin [or allethrin], permethrin, pyrethrins, resmethrin [or its cis-isomer, cismethrin] and tefluthrin under standard conditions.
Factor analysis and multivariate dissimilarity analysis were employed to evaluate four independent data sets comprised of (1) fifty-six behavioral and physiological parameters from an acute neurotoxicity functional observatory battery (FOB), (2) eight electrophysiological parameters from voltage clamp experiments conducted on the Na (v) 1.8 sodium channel expressed in Xenopus oocytes, (3) indices of efficacy, potency and binding calculated for calcium ion influx across neuronal membranes, membrane depolarization and glutamate released from rat brain synaptosomes and (4) changes in chloride channel open state probability using a patch voltage clamp technique for membranes isolated from mouse neuroblastoma cells.
1(0,0,0,1) Details
6128164 Narahashi T: Modification of nerve membrane sodium channels by the insecticide pyrethroids. Comp Biochem Physiol C. 1982;72(2):411-4.

The synthetic pyrethroids exert potent and selective actions on nerve membrane sodium channels. (+)-trans tetramethrin and (+)-trans allethrin cause repetitive discharges to be produced in the isolated crayfish and squid giant axons in response to a single stimulus as a result of an increase in depolarizing after-potential. 2.
The latter effect is due to slowing of the sodium channel kinetics which causes a prolonged sodium current following the normal peak sodium current. 3.
2(0,0,0,2) Details
10989292 Martin RL, Pittendrigh B, Liu J, Reenan R, ffrench-Constant R, Hanck DA: Point mutations in domain III of a Drosophila neuronal Na channel confer resistance to allethrin. Insect Biochem Mol Biol. 2000 Nov;30(11):1051-9.

We screened several mutant sodium channel Drosophila lines for resistance to type I pyrethroids.
1(0,0,0,1) Details
7780863 Nozaki S, Takahashi M, Hashimoto K: Effect of pyrethroid (allethrin and fenvalerate) on excitability changes following nerve impulse. Sangyo Eiseigaku Zasshi. 1995 Jan;37(1):5-8.

The difference has been reported to depend on the effect on the sodium channel opening time.
1(0,0,0,1) Details
16180929 Bradberry SM, Cage SA, Proudfoot AT, Vale JA: Poisoning due to pyrethroids. Toxicol Rev. 2005;24(2):93-106.

Pyrethroids are some 2250 times more toxic to insects than mammals because insects have increased sodium channel sensitivity, smaller body size and lower body temperature.
The first pyrethroid pesticide, allethrin, was identified in 1949.
1(0,0,0,1) Details
16051293 Choi JS, Soderlund DM: Structure-activity relationships for the action of 11 pyrethroid insecticides on rat Na v 1.8 sodium channels expressed in Xenopus oocytes. Toxicol Appl Pharmacol. 2006 Mar 15;211(3):233-44. Epub 2005 Jul 26.

This paper describes the action of 11 structurally diverse commercial pyrethroid insecticides on the rat Na v 1.8 sodium channel isoform, the principal carrier of the tetrodotoxin-resistant, pyrethroid-sensitive sodium current of sensory neurons, expressed in Xenopus laevis oocytes.
All 11 compounds produced characteristic sodium tail currents following a depolarizing pulse that ranged from rapidly-decaying monoexponential currents (allethrin, cismethrin and permethrin) to persistent biexponential currents (cyfluthrin, cyhalothrin, cypermethrin and deltamethrin).
1(0,0,0,1) Details
2546657 Gusovsky F, Secunda SI, Daly JW: Pyrethroids: involvement of sodium channels in effects on inositol phosphate formation in guinea pig synaptoneurosomes. Brain Res. 1989 Jul 17;492(1-2):72-8.

Type II pyrethroids, like deltamethrin and fenvalerate, were more potent and, at least for deltamethrin, more efficacious than type I pyrethroids, like allethrin, resmethrin and permethrin.
The effects of type II pyrethroids could be partially inhibited by the sodium channel blocker tetrodotoxin.
1(0,0,0,1) Details
6276777 Vijverberg HP, van der Zalm JM, van der Bercken J: Similar mode of action of pyrethroids and DDT on sodium channel gating in myelinated nerves. Nature. 1982 Feb 18;295(5850):601-3.

1(0,0,0,1) Details
6302535 Narahashi T: Cellular and molecular mechanisms of action of insecticides: neurophysiological approach. Neurobehav Toxicol Teratol. 1982 Nov-Dec;4(6):753-8.

Type I pyrethroids as represented by allethrin and tetramethrin which lack a cyano group cause repetitive discharges in nerve fibers and nerve terminals leading to hyperexcitation of the animal.
Thus, it is concluded that the site of action of pyrethroids is the sodium channel, and that pyrethroids interact with the channel macromolecules that control the gating mechanism.
1(0,0,0,1) Details