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https://www.selleckchem.com/products/ots514.html The effect of TRPA1-ion channel on thermoregulatory responses depending on the level of its activity was studied in Wistar rats. To activate the TRPA1 ion channel localized in the skin, its agonist allyl isothiocyanate (AITC) was used in different concentrations (0.04, 0.4, 1, and 2.5%). Low concentration of AITC (0.04%) enhanced and high concentrations (1 and 2.5%), on the contrary, inhibited cold-defense responses (decreased their magnitude and led to their later initiation due to an increase in temperature thresholds). With an increase in TRPA1 activation, the increase in temperature thresholds (afferent link) was ahead of the decrease in the magnitude of responses (efferent link), which can attest to different sensitivity of these processes to TRPA1 activation.We studied pharmacokinetics of a new analgesic based on a hexaazaisowurtzitane derivative (thiowurtzine, TWZ). A method for measuring TWZ in organs and tissues by HPLC/MS/MS was developed and validated. The sensitivity of the method under conditions of intragastric administration of TWZ to rats in a dose of 100 mg/kg is 0.5 ng/ml (calibration curve 0.5-400 ng/ml). The concentrations of the substance (Cmax) in the plasma, organs, and tissues of animals were 20-100 ng/ml, the time to reach the maximum concentration after a single dose (Tmax) was 2 h. The mean retention time of the substance in the body ranged from 5.67 to 17.15 h after administration. The highest concentrations were found in excretory organs (liver and kidneys), the substance also actively penetrated into muscle tissue. The medium concentrations were found in the brain and adipose tissue. The tropism to the heart tissues was minimal.Wound-healing activity of the crystalline form of dihydroquercetin and its microtubular pseudopolymorphic modification obtained by crystal engineering was compared using the rat model of IIIA degree burn. The rate of wound healing in the group treated with microtub

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