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Recreational drugs such as 3,4-methylenedioxymethamphetamine and cocaine induce hyperthermia, which is affected by ambient temperature. 2-(4-Bromo-2,5-dimethoxyphenyl)-N-(2-methoxybenzyl)ethanamine (25B-NBOMe), a selective agonist of 5-HT2A receptor used as a recreational drug, reportedly induces
The levels of serotonin (5-HT) were determined in platelet-free and platelet-rich plasma before and during the onset of halothane-induced malignant hyperthermia (MH) in genetically MH-susceptible pigs. During MH onset, the free (i.e. physiologically active) levels of 5-HT in plasma rose
Maintaining a body temperature within a narrow range is vital for the survival of all mammals, including humans. With the help of optogenetics, a better understanding of the thermoregulatory organs and pathways is achieved. Optogenetic activation of the GABAergic neurons in the ventral part of the
Serotonin (5-HT) syndrome is a potentially fatal condition associated with various combinations of serotonergic drugs. Hyperthermia is the most serious symptom of this syndrome. Hyperthermia in 5-HT syndrome is reportedly the result of activation of 5-HT(2A) receptors. Mirtazapine is a novel
BACKGROUND
Serotonin (5-HT) syndrome is the most serious side effect of antidepressants. Although several drugs have been used for the treatment of 5-HT syndrome, a universal pharmacotherapy has not been established. NMDA receptor antagonists have been reported to have neuroprotective effects. In
The serotonin (5-HT) syndrome is the most serious toxic interaction of antidepressants, but no pharmacotherapy has yet been established. In the present study, we created an animal model of the 5-HT syndrome by intraperitoneally injecting rats with clorgyline (2 mg/kg) and 5-hydroxy-L-tryptophan
In pigs, the serotonin-2 (5-HT2) receptor agonist 1-(2,5-dimethoxy-4-iodophenyl)-2-aminopropane (DOI), 0.8 mg/kg, induced "psychotic" behaviour (e.g., grimacing, backward locomotion, blank stare) and a muscular syndrome, which is known as malignant hyperthermia (MH) in pigs and humans. This syndrome
In pigs genetically susceptible to malignant hyperthermia (MH), it has been shown that serotonin (5-HT2) receptor agonists can induce MH and "psychotic" behaviour. Both can be prevented by 5-HT2 receptor antagonists. Furthermore, free levels of serotonin in plasma increased concomitantly with
Goats were infected with Trypanosoma vivax or inoculated with a low pyrogenic dose of lipopolysaccharide (LPS) obtained from Escherichia coli or Salmonella typhimurium in order to obtain evidence about the role of kinins and serotonin in the pathogenesis of trypanosomiasis and in endotoxin induced
BACKGROUND
Porcine malignant hyperthermia (MH) can be triggered by administration of certain serotonin2 receptor agonists. Pretreatment with dantrolene completely abolished serotonin-induced MH. The purpose of this study was to investigate the effects of the serotonin2 receptor agonist
Serotonin is believed as an important factor in brain function. The role of serotonin in cerebral psycho-patho-physiology has already been well established. However, the function of serotonin antagonist in anesthetized subjects under hyperthermia has not been studied properly.
Experiments were
The anterior midgut of the larval yellow fever mosquito Aedes aegypti generates a luminal pH in excess of 10 in vivo and similar values are attained by isolated and perfused anterior midgut segments after stimulation with submicromolar serotonin. In the present study we investigated the mechanisms
In order to explore possible involvement of histamine and serotonin in acute renal failure related to hemorrhagic fever with renal syndrome (HFRS), selected markers or renal lesions have been compared with biochemical findings in highly severe cases. Literature reports and the study results lead the
Physical hyperthermia caused distinct increase in content of serotonin in liquor and its decrease in hypothalamus of rabbits and rats, while histamine and PGE2 were unaltered in liquor of these animals. Considerable increase of PGE2 in liquor simultaneously with unaltered content of serotonin and
In experiments on male Wistar rats, the acute phase reaction was induced by a bolus intravenous injection of Escherichia coli lipopolysaccharide (10 microg/kg) through a silicon catheter pre-implanted into the jugular vein. The colonic and skin temperature was measured with thermocouples. Changes in