Effect of toxin-<FONT FACE=Symbol>g</font> from Tityus serrulatus scorpion venom on gastric emptying in rats
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منابع مشابه
Effect of toxin-g from Tityus serrulatus scorpion venom on gastric emptying in rats.
The effect of toxin-gamma from Tityus serrulatus scorpion venom on the gastric emptying of liquids was studied in 176 young adult male Wistar rats (2-3 months of age) divided into subgroups of 8 animals each. Toxin-gamma was injected i.v. at doses of 25, 37.5, 50 or 100 micrograms/kg and the effect on gastric emptying was assessed 30 min and 8 h later. A time-course study was also performed by ...
متن کاملInhibition of gastric emptying and intestinal transit in anesthetized rats by a Tityus serrulatus scorpion toxin.
The effects of a fraction (T1) of Tityus serrulatus scorpion venom prepared by gel filtration on gastric emptying and small intestinal transit were investigated in male Wistar rats. Fasted animals were anesthetized with urethane, submitted to tracheal intubation and right jugular vein cannulation. Scorpion toxin (250 microg/kg) or saline was injected iv and 1 h later a bolus of saline (1.0 ml/1...
متن کاملAge effects on the pharmacokinetics of tityustoxin from Tityus serrulatus scorpion venom in rats.
The pharmacokinetics of scorpion venom and its toxins has been investigated in experimental models using adult animals, although, severe scorpion accidents are associated more frequently with children. We compared the effect of age on the pharmacokinetics of tityustoxin, one of the most active principles of Tityus serrulatus venom, in young male/female rats (21-22 days old, N=5-8) and in adult ...
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Antimicrobial peptides (AMPs) are ubiquitous and multipotent components of the innate immune defense arsenal used by both prokaryotic and eukaryotic organisms. The search for new AMPs has increased in recent years, due to the growing development of microbial resistance to therapeutical drugs. In this work, we evaluate the effects of Tityus serrulatus venom (Tsv), its fractions and its major tox...
متن کاملModification of Na channel gating by an alpha scorpion toxin from Tityus serrulatus
The effects of TsIV-5, a toxin isolated from the Brazilian scorpion Tityus serrulatus, on whole-cell and single-channel Na currents were determined in N18 neuroblastoma cells. In whole-cell records at a test potential of -10 mV, external application of 500 nM TsIV-5 slowed inactivation 20-fold and increased peak current by about one-third without changing time-to-peak. Both the steady-state act...
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ژورنال
عنوان ژورنال: Brazilian Journal of Medical and Biological Research
سال: 1999
ISSN: 0100-879X
DOI: 10.1590/s0100-879x1999000400009