Tag Archives: histamine

Correction of the neurotransmitter pool as a new approach in the treatment of patients with multifocal atherosclerosis

T. Motsak1*, V. Lyzogub1, O. Kupchynska1,2, Y. Bielikova1

1Bogomolets National Medical University, Kyiv, Ukraine;
2SI “National Scientific Center “Institute of Cardiology, Clinical
and Regenerative Medicine named after Academician M.D. Strazhesko”
National Academy of Medical Sciences of Ukraine, Kyiv, Ukraine;
*e-mail: tetianamihalovna@gmail.com

Received: 12 February 2025; Revised: 08 April 2025;
Accepted: 11 June 2025; Available on-line: 07 July 2025

Multifocal atherosclerosis (MAS) is associated with the development of ischemia in many organs and a significant deterioration in the prognosis for patients. An important role in this disease is played by the imbalance of neurotransmitters and increased content of matrix metalloproteinases (MMP) caused by ischemia. The aim of the study was to develop approaches to drug optimization of blood levels of dopamine, histamine and MMP in patients with multifocal atherosclerosis. The study included: 66 men with MAS aged 67.2 ± 2.9 years, who were divided into two groups: group 1 – patients with ischemic stroke, group 2 – patients with myocardial infarction, common to patients in both groups were atherosclerotic encephalopathy, ischemic heart disease and intermittent claudication syndrome; the control group consisted of 18 practically healthy men aged 63.4 ± 5.1 years. In addition to the basic treatment, patients received cilostazol (50 mg twice a day), GABA – aminalon (250 mg twice a day), atenolol (25 mg once a day) and catechins – Green T-Max (1 capsule per day) for 16 weeks. The examination included: determination of volumetric blood flow (FV) in the coronary, cerebral and femoral vascular territories, walking distance, daily ECG monitoring, estimation of dopamine and histamine levels in serum and MMP-2,-9 level in blood plasma by ELISA. Cognitive function was determined using the Montreal scale. Significantly lower FV in the studied vascular areas and extremely high histamine and dopamine levels were found in both MAS groups compared with the control group. The levels of MMP-2 and MMP-9 in both groups notably exceeded the indices in control group. After additional treatment with the studied medications, the drop in excessively high levels of histamine, dopamine, MMP-2 and MMP-9l was observed, the clinical condition, FV, cognitive functions and walking distance in patients of both MAS groups were improved. Thus, the use of the combination of cilostazol, aminalon, atenolol and catechins, in addition to standard therapy, allowed us to optimize the levels of neurotransmitters dopamine and histamine, which may reduce the risk of recurrent cardiovascular events in patients with MAS.

Quercetin and histamine effects on free radical reactions in rat erythrocytes

N. P. Harasym*, M. Y. Booklyv, A. R. Zyn, S. M. Mandzynets,
A. O. Bezkorovainy, D. I. Sanahursky

Ivan Franko National University of Lviv, Faculty of Biology, Departments of Biophysics and Bioinformatics, Ukraine;
*e-mail: garasymnataly@gmail.com

Received: 12 June 2020; Accepted: 17 December 2020

The effects of quercetin and histamine separately or in combination on the free radical state of rat erythrocytes were estimated in vitro. Quercetin (0.1; 0.5; 3.0; 5.0 mM) or histamine (0.01; 10.0 μM) were added to whole blood separately or in combination. The content of hydroperoxides, TBA-active products and carbonyl groups of proteins in erythrocytes after hemolysis was determined. The greatest influence of quercetin and histamine on erythrocytes state indicators was revealed under their combined action, when the level of TBA-active products and the content of carbonyl groups of proteins were found to be increased substantially.

Antioxidant defense system state in blood plasma and heart muscle of rats under the influence of histamine and sodium hypoclorite

O. I. Bishko, N. P. Harasym, D. I. Sanahurs’kyj

Ivan Franko National University of Lviv, Ukraine;
e-mail: oliabishko@gmail.com

There is a wide spectrum of antihistamine drugs in the pharmaceutical market, however all these chemical preparations cause side effects. Therefore, new alternative ways for histamine detoxication are to be found. For this aim in our experiment sodium hypochlorite was used because its solution possesses strong oxidizing properties. The influence of histamine and sodium hypochlorite on the antioxidant defence system state of blood plasma and cardiac muscle in rats has been researched. It was shown, that the investigated factors result in the disruption of the antioxidant system. It was found that histamine injection in concentration of 1 and 8 μg/kg in plasma leads to the increase of superoxi­de dismutase activity during all the experiment. When studying enzymes, that catalyze hydroperoxides and Н2О2 decomposition it was shown that under the influence of histamine in a dose 1 μg/kg, the glutathione peroxidase activity increased on the 1st day of the experiment. However, on the 7th day of the experiment the increase of both glutathione peroxidase and catalase activity was fixed. The deviation in superoxide dismutase function in rats plasma under the action of sodium hypochlorite has been established. The activity of enzymes that decompose Н2О2 and hydroperoxides were inhibi­ted. Under the influence of histamine in the heart tissues we have stated the disturbance of superoxide dismutase work and increase of catalase activity and decrease of glutathione peroxidase activity. The influence of sodium hypochlorite on the myocardium of intact animals as well as joint influence of sodium hypochlorite and histamine result in the increase of superoxide dismutase and catalase activity and lead to the conside­rable decline of activity of glutathione peroxidase.