Treatment of inflammatory and degenerative damages of the smooth parodont tissue with tooth pastes in rats

2015 ◽  
Vol 6 (2) ◽  
pp. 66-70
Author(s):  
Evgeniy Vladimirovich Mokrenko ◽  
Petr Dmitrievich Shabanov

A rat model of inflammatory and degenerative damages of the smooth parodont tissue by means of administration of 2 % formal-dehyde water solution into the smooth parodont tissues was described. The oxidative status of rats including lipid peroxidation and antioxidant defense system indexes was assessed because of their high sensitivity to inflammation process. The lipid peroxidation indexes (malonic dialdehyde and dienic conjugates level) were 2-3-fold higher in the blood serum and parodont tissue in 7 days after inflammation beginning. The system of antioxidant defense (recovered glutatione level and activity of superoxide dismutase) was more sensitive in comparison with lipid peroxidation. The recovered glutation content in the blood serum was decreased from 2.02 ± 0.09 till 0.88 ± 0.21 µM/ml, and superoxide dismutase activity was reduced from 0.78 ± 0.10 till 0.28 ± 0.04 А/mg protein, that was these indexes were decreased in 2.5-3 times. The same regularity was observed in the smooth tissues of the parodont. The recovered glutation level was decreased in 2.1 times and superoxide dismutase activity was reduced in 7 times. Therefore, the curative and prevention action of tooth pastes and stomatologic drugs could be assessed with this model of inflammation. In particular, the tooth pastes lesmin-dent > clamin-dent > zhemchug (in order of descending activity) attenuate or abolish signs of inflammatory and degenerative damages of the smooth parodont tissue in rats assessed on lipid peroxidation and antioxidant defense system indexes.

2015 ◽  
Vol 13 (3) ◽  
pp. 24-28
Author(s):  
Eugeny Vladimirovich Mokrenko ◽  
Petr Dmitriyevich Shabanov

A rat model of inflammatory and degenerative damages of the smooth parodont tissue by means of administration of 2 % formaldehyde water solution into the smooth parodont tissues was described. The oxidative status of rats including lipid peroxidation and antioxidant defense system indexes was assessed because of their high sensitivity to inflammation process. The lipid peroxidation indexes (malonic dialdehyde and dienic conjugates level) were 2-3-fold higher in the blood serum and parodont tissue in 7 days after inflammation beginning. The system of antioxidant defense (recovered glutatione level and activity of superoxide dismutase) was more sensitive in comparison with lipid peroxidation. The recovered glutation content in the blood serum was decreased from 2.02 ± 0.09 till 0.88 ± 0.21 µM/ml, and superoxide dismutase activity was reduced from 0.78 ± 0.10 till 0.28 ± 0.04 А/mg protein, that was these indexes were decreased in 2.5-3 times. The same regularity was observed in the smooth tissues of the parodont. The recovered glutation level was decreased in 2.1 times and superoxide dismutase activity was reduced in 7 times. Therefore, the curative and prevention action of tooth pastes and stomatologic drugs could be assessed with this model of inflammation. In particular, the tooth pastes lesmin-dent > clamin-dent > zhemchug (in order of descending activity) attenuate or abolish signs of inflammatory and degenerative damages of the smooth parodont tissue in rats assessed on lipid peroxidation and antioxidant defense system indexes.


2022 ◽  
Vol 20 (4) ◽  
pp. 63-70
Author(s):  
O. V. Smirnova ◽  
V. V. Tsukanov ◽  
A. A. Sinyakov ◽  
O. L. Moskalenko ◽  
N. G. Elmanova ◽  
...  

Background. The problem of gastric cancer remains unresolved throughout the world, while chronic atrophic gastritis (CAG) increases the likelihood of its development by 15 times. In the Russian Federation, the incidence of gastric cancer (GC) is among the highest, with it prevailing among males. One of the leading mechanisms in molecular pathology of membranes is lipid peroxidation (LPO). The severity of oxidative membrane damage depends on concomitant diseases, contributing to emergence and progression of pathological processes and development of cancer. Currently, the problem of LPO is unsolved in biological systems.The aim of this study was to investigate the state of LPO and antioxidant defense system in CAG and GC. Materials and methods. The parameters were studied in 45 patients with CAG and 50 patients with GC. The control group included 50 practically healthy volunteers without gastrointestinal complaints, who did not have changes in the gastric mucosa according to the fibroesophagogastroduodenoscopy (FEGDS) findings.Results. In patients with CAG, an increase in malondialdehyde, superoxide dismutase, catalase, glutathione S-transferase, and glutathione peroxidase was found in the blood plasma compared with the control group. In patients with CAG, lipid peroxidation was activated, and the malondialdehyde level increased by 3.5 times relative to normal values. At the same time, the body fought against oxidative stress by increasing the activity of antioxidant enzymes, such as superoxide dismutase, catalase, glutathione S-transferase, and glutathione peroxidase. All patients with GC showed pronounced oxidative stress in the blood plasma in the form of a 45-fold increase in malondialdehyde. The activity of the main antioxidant enzyme superoxide dismutase was reduced in GC. Catalase was activated, which indicated pronounced oxidative stress, significant damage to blood vessels, and massive cell death. Glutathione-related enzymes (glutathione S-transferase and glutathione peroxidase) and the antioxidant protein ceruloplasmin were activated, which also indicated significant oxidative stress and severe intoxication in patients with GC.Conclusion. Depending on the stage and type of cancer, an in-depth study of lipid peroxidation and factors of the antioxidant defense system can be used to correct therapy and prevent cancer and can serve as markers of progression and prognosis in gastric cancer. 


Open Medicine ◽  
2009 ◽  
Vol 4 (3) ◽  
pp. 340-347 ◽  
Author(s):  
Geeta Shukla ◽  
Divya Singh ◽  
Lalita Sharma ◽  
Ashwani Koul ◽  
Praveen Rishi

AbstractThe present study was designed to evaluate the effect of Plasmodium and Salmonella co-infection in LACA mice. The parasitaemic level, bacterial load, histological alterations and levels of oxidants/antioxidant activity were measured. Co-infected mice had a high parasitaemic level, increased bacterial load, and died earlier than Plasmodium-infected mice. Histologically, co-infected mice had more architectural damage in the liver, spleen, kidney, and brain than the control groups. The level of lipid peroxidation was significantly increased and the activities of antioxidative enzymes (superoxide dismutase and catalase) were decreased in all organs of co-infected mice compared to the control groups, indicating depression of the antioxidant defense system. The present study demonstrates more severe histological and biochemical alterations in co-infected mice, highlighting the importance of early diagnosis for selection of appropriate treatments and reducing the likelihood of further complications.


Author(s):  
S. R. Pidruchna ◽  
H. M. Stepanova

Introduction. The last decades are characterized by significant growth of injuries, especially in young people, which have a variety of causes. One of the pathogenetic links of traumatic disease is a violation of prooxidant-antioxidant and kallikrein-kinin systems. Data on changes in the indicators of the system of lipid peroxidation –antioxidant defense –kallikrein-kinin system are disparate and contradictory in people of all ages and at different periods of traumatic disease.The aim of the study–to establish interdependence between pro- and antioxidant system and general and specific proteolysis parameters in rats of different ages in early and late display of polytrauma.Research methods. Simulation of polytrauma was performed under the thiopental sodium anesthetizing (60 mg per kilogram of weight). In aseptic conditions, the animals were caused bleeding from the femoral vein (about 20% of the volume of circulating blood), 1 ml of which was injected into a paranephrine cellulose to reproduce endogenous intoxication. Then from the operative access by the forceps of Luer, the left astragalus was broken, a wound on the thigh was sewn. The research was conducted after 1, 3, 24 hours and 14 days after the polytraumatic simulation. The activity of superoxide dismutase in blood serum was determined by Chiavari's method. The activity of catalase in the liver homogenate and blood plasma was determined by the method of M.A. Koroliuk and co-authors. The content of ceruloplasmin in blood serum was determined according to the method of V. H. Kolba, V.S. Kamyshnikov. The content of TBA-active products was determined according to the method of B.V. Havrylov, and indicators of kallikrein-kinin system– by K. M. Veremieienko. The analysis of the interdependency between the two features in the presence of a normal distribution was estimated following the results of the Pearson’s correlation analysis (r).Results and Discussion. Having analyzed the interdependency between the pro- and antioxidant system and the indicators of the general and specific proteolysis in the early stages of traumatic disease in animals 3 months of age, we established the presence of a statistically significant inverse correlation between the level of kallikrein and the activity of superoxide dismutase (r=-0.69; p<0.05) for one hour after the polytraumatic simulation. The activation of nonspecific proteolysis was confirmed by the presence of direct statistically significant correlation bonds between the level of proteolytic activity and the level of malondialdehyde (r=0.65; p<0.05) for 1 hour and between proteolytic activity and the level of lipids hydroperoxides for 3 hours of traumatic disease (r=0.67; p<0.05). The decrease in the protective mechanisms of the antioxidant defense system confirmed a significant inverse correlation between proteolytic activity and the catalase of blood in the early stages of polytrauma (r=-0.67;p<0.05) in animals 3 months of age. In the reproductive rats 6 months of age for 1 hour after polytraumatic simulation, fixed inverse statistically significant correlation relations between the level of kallikrein, blood catalase and ceruloplasmin of blood serum (r=0.89 and r=0.72, respectively; p<0.05). For 3rdhour of the experiment, the existence of inverse correlation relationships between the level of precalicine and the activity of the liver catalase (r=-0.80; p<0.05) was established, which proves the decrease of protective resources of antioxidant defense system with the activation of kallikrein-kinin system.Conclusion.Detected dependencies confirm that increase of the intensification of lipid peroxidation processes, the activation of general and specific kallikrein-kinin system proteolysis, and the reduction of adaptive resources of antioxidant defense system leads to an increase in lipid disequilibrium in animals of different age groups with polytrauma and vice versa, the increase of lipid status disorders leads to an increase in disequilibrium in the system of lipid peroxidation – antioxidant defense –kallikrein-kinin system.


1997 ◽  
Vol 43 (5) ◽  
pp. 16-19
Author(s):  
O. N. Nikiforov ◽  
O. V. Sazonova ◽  
L. Ya. Sukhanova ◽  
L. G. Knyazkova ◽  
V. A. Galenok

Lipid peroxidation and status of the antioxidant defense were followed up in 24 patients with insulin-dependent diabetes over the course of treatment. Serum malonic dialdehyde was reliably (2.7 times) increased during the decompensation stage. Accumulation of conjugated dienes was not seen in all the patients; it depended on the content of free fatty acids. Their level decreased 1.1-1.3 times with depletion of the oxidation substrate. Variously directed changes of catalase activity were observed during the decompensation stage in the presence of a reliable (1.6 times) depression of ceruloplasmin, this reflecting various stages of adaptation of the antioxidant defense system. The level of malonic di aldehyde decreased after normalization of carbohydrate metabolism, but failed to reach the control values; a trend to recovery of the antioxidant composition was observed. The findings indicate disorders in the relationships between lipid peroxidation and antioxidant defense. Approaches to development of individual treatments and methods of correction are discussed.


2016 ◽  
Vol 24 (1) ◽  
pp. 96-102 ◽  
Author(s):  
B. V. Gutyj ◽  
S. D. Mursjka ◽  
D. F. Hufrij ◽  
I. I. Hariv ◽  
N. D. Levkivska ◽  
...  

This article presents the results of research on the influence of cadmium loading on the state level of enzymatic and non-enzymatic antioxidant links of the antioxidant defense system of the organisms of young cattle, such as the activity of catalase, superoxide dismutase, glutathione peroxidase, glutathione levels, selenium, vitamins A and E. It was found that feeding bull calves with cadmium chloride at doses of 0.03 and 0.05 mg/kg of body weight helped to reduce both the enzymatic and non-enzymatic link of antioxidant protection (superoxide dismutase 31%, catalase 13%, glutathione peroxidase 23%, reduced glutathione 10%, vitamin A 28%, vitamin E 31%, selenium 20%). Toxic effects of cadmium promotes change in steady-state concentrations of radical metabolites О2–,ОН˙, НО2˙, which, in turn, trigger the process of lipid peroxidation. The lowest level of indicators of antioxidant defense system in the blood of young cattle was registered on the sixteenth and twenty-fourth days of the experiment, which is associated with increased activation of lipid peroxidation and the disturbaance of the balance between the antioxidant system and lipid peroxidation intensity. The activity of the antioxidant defense system in the blood was different for calves fed with cadmium chloride at doses of 0.03 and 0.05 mg/kg of animal mass. The more cadmium chloride in the feed, the lower the activity of the antioxidant defense system of the calves’ organisms was registered. Thus cadmium chloride depresses the antioxidant defense system, which specifically involves lowering the activity of enzymatic links (catalase, superoxide dismutase, glutathione peroxidase) and non-enzymatic links (reduced glutathione, selenium, vitamins A and E).


2020 ◽  
Vol 3 (2) ◽  
pp. 53-59
Author(s):  
K. Y. Leskiv ◽  
B. V. Gutyj ◽  
D. F. Gufriy ◽  
V. I. Khalak ◽  
O. G. Demchuk

The article presents the results of research on the state of the antioxidant defense system of piglets under nitrate-nitrite toxicosis and the action of corrective factors (methionine, phenarone and methyphene). Nitrate-nitrite load in piglets caused inhibition of the activity of enzymes of the antioxidant defense system, that indicates a decrease in the activity of superoxide dismutase, catalase and glutathione peroxidase in the serum of testing animals. The lowest activity of antioxidant enzymes under chronic nitrate-nitrite toxicosis was on the 60th day of the experiment in the serum of piglets of the control group, where accordingly the activity of superoxide dismutase decreased by 14 %, catalase activity – by 18 %, glutathione peroxidase activity – by 12 %. Lipid peroxidation processes are activated in the blood of animals, namely the level of lipid hydroperoxides and diene conjugates increases under the conditions of experimental nitrate-nitrite load. It should be noted that the highest level of lipid peroxidation products in the serum of piglets with chronic nitrate-nitrite toxicosis was on the 60 th day of the testing, and accordingly the content of lipid hydroperoxides increased by 67 % and diene conjugates – by 33 %. Administration of methionine, phenarone and methyphene under nitrate load contributed to the activation of the antioxidant defense system compared to animals in the control group. The use of antioxidant drugs in sick piglets also contributed to the inhibition of lipid peroxidation, as indicated by a decrease in the content of lipid hydroperoxides and diene conjugates in the serum of experimental group. More pronounced antioxidant effect was shown by administrating methyphene. The mechanism of action of phenarone and methyphene is associated with the direct effect of its components on the inhibition of the absorption of metabolites that have a toxic effect on cell membranes of animals. As a result of the adsorbing action of zeolite, which is part of the drugs, in the digestive tract there is a decrease in the concentration of substances that can be substrates for lipid peroxidation, as well as removal of toxic metabolites in the blood, which are prooxidants. This process occurs by osmosis and diffusion of these substances through the capillaries of the microvilli of the small intestine and their subsequent fixation on the sorbent granules.


1991 ◽  
Vol 42 (7) ◽  
pp. 1441-1445 ◽  
Author(s):  
Sabhiya Majid ◽  
Krishan L. Khanduja ◽  
Rajinder K. Gandhi ◽  
Sanjay Kapur ◽  
Rati R. Sharma

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