Effect of Polystyrene/Fullerene Composites on the Lipid Peroxidation in Blood Serum

Author(s):  
Olga Alekseeva ◽  
Olga Sitnikova ◽  
Nadezhda Bagrovskaya ◽  
Andrew Noskov
Author(s):  
Raghavendra Mitta ◽  
Sushmitha Duddu ◽  
Raghuveer Yadav Pulala ◽  
Pradeepkumar Bhupalam ◽  
Venkatakirankumar Mandlem ◽  
...  

AbstractObjectivesThe main objective of the present study is to evaluate the mitigative effect of hydroalcoholic extract of Momordica cymbalaria fruits against sodium fluoride (NaF) induced hepatotoxicity.MethodsIn this study, Wistar male albino rats were randomly divided into five groups of six rats each. Group I and II served as normal and toxic controls. Group III as plant control received extract at a dose of 400 mg/kg b. wt, p.o and Groups IV and V as treatment groups received extract at a dose 200 and 400 mg/kg b. wt, p.o for 30 days. All groups except Groups I and III received 100 ppm of NaF through drinking water. After completion of the study, blood collected for the estimation of liver blood serum biomarkers such as aspartate aminotransferases (AST), alanine aminotransferases (ALT), alkaline Phosphatase (ALP), direct and total bilirubin, total protein and albumin. The liver tissue homogenate was for estimation of lipid peroxidation, catalase, and reduced glutathione levels.ResultsThe results showed that NaF intoxication caused elevation of liver blood serum levels and lipid peroxidation; decreased levels of serum total protein, albumin and liver reduced glutathione, and catalase observed. The treatment groups showed decreased elevated serum biomarkers (ALT, AST, and ALP), liver lipid peroxidation and increased serum total protein and albumin, liver reduced glutathione and catalase levels in a dose-dependent manner. Histopathological studies also further strongly supported for mitigative effects of the plant.ConclusionsIn conclusion, our findings of the study indicated that M. cymbalaria fruits were a potential drug candidate in the treatment of NaF induced hepatotoxicity.


Author(s):  
A. Ye. Demkovych

Introduction. Activation of lipid peroxidation is one of the trigger mechanisms of periodontium injury, which is primary caused by cellular damage. Reactive oxygen and nitrogen species (RONS) are able to cause damage to a cell as well as final products of lipid peroxidation, including unsaturated aldehydes and other metabolites. Objective. The aim of the research was to determine the role of RONS and accumulation of lipid peroxidation derivatives in initial development and formation of chronical inflammatory process in periodontium. Methods. Experimental periodontitis was modeled in animals by injection of complex mixtures of microorganisms diluted in egg protein into periodontal tissues. The results of biochemical studies of free radical processes activity in blood serum were evaluated by content of diene, triene conjugates, TBA-active products and total quantity of metabolites of nitric oxide (NO2–+NO3–), which were determined on the 7th, 14th and 30th days of the experiment. Results. Generation of active forms of oxygen is more influential, providing longevity of inflammatory process. This pays attention to typical dynamics of changes in active processes of lipid peroxidation in the development and course of experimental periodontitis. The study of inflammatory process with a bacterial-immune component in the rats’ periodontal complex proved accumulation of lipid peroxidation and nitric oxide metabolites in blood serum.Conclusions. The preservation of increased lipid peroxidation and nitric oxide metabolites in blood serum of the experimental animals with acute periodontitis conduce enhance of alteration and delayed healing that result in its sequel into chronical periodontitis.


2019 ◽  
Vol 10 (1) ◽  
pp. 87-91
Author(s):  
A. R. Shcherbatyy ◽  
L. G. Slivinska ◽  
B. V. Gutyj ◽  
V. L. Fedorovych ◽  
B. O. Lukashchuk

We observed the processes of lipid peroxidation, characterized by increased content of intermediate and its end products (diene conjugates, lipid hydroperoxides, malonic dialdehyde), in the blood of the pregnant mares. The changes of the data of indicators in the organism of the mares at the 9–11 months of pregnancy were established. The level of diene conjugates in the blood of animals was 3.6 ± 0.12 μmol/l, 33.3 and 44.0%, which was higher compared to non-pregnant mares and mares at 4th month of pregnancy. The concentration of lipid hydroperoxides in the blood of mares increased by 100% and by 42.9% in the blood of non-pregnant mares and mares at 4th month of pregnancy. The concentration of malondialdehyde in the blood of mares increased by 75.0%, 51.2% and 25.0% compared to non-pregnant mares and mares at 4th and 7th month of pregnancy, respectively. The results of our research showed that the mineral-vitamin premix Marmix had a positive influence on the state of lipid peroxidation products, contributed to their lowering in the blood of pregnant mares, which demonstrated antioxidant action and stimulated the function of the immune system. It was established that the bactericidal and lysozyme activity of the blood serum and the concentration of circulating immune complexes increases in the mares with lack of trace elements. It was shown that feeding mares during the 9–11 months of pregnancy with the mineral-vitamin premix Marmix had a positive influence on the state of humoral factors of nonspecific resistance. In particular, the concentration of bactericidal activity of serum increased by 31.0%, lysozyme activity of blood serum – 45.4% and contributed to the decrease of the concentration of circulating immune complexes in serum by 3.8 times. The use of mineral-vitamin premix Marmix during 60 days in feeding pregnant mares caused a restoration of the clinical status, a decrease in the content of lipid peroxidation products.


2021 ◽  
Vol 29 (4) ◽  
pp. 14-21
Author(s):  
Nataliya S. Averianova ◽  
Liliya A. Kara ◽  
Olga V. Egorova ◽  
Nataliya A. Ilyushina

Introduction. The study of the potential negative effects of combinations of several pesticide active ingredients is an important and understudied area of toxicological and hygienic research. The initial phase of the genotoxicant action on the genetic structures in cells is the primary DNA damage, the identification of which makes it possible to assess the early stages of the genotoxic effect of xenobiotics and their mixtures. The DNA comet assay is widely used for these purposes. The aim of the research is to assess the primary DNA damage under the combined action of pesticides. Materials and methods. To assess DNA damage the experiments on CD-1 mice of both sexes were performed using alkaline comet analysis. The concentration of active products reacting with thiobarbituric acid (TBA) in the blood serum of white outbred rats was assessed as a marker of lipid peroxidation. Results. It was found that mixtures of 2,4-D-acid + glyphosate and thiram + carbendazim did not cause the formation of breaks and alkali-labile sites in the DNA of mice bone marrow cells. Exposure to the combination of the technical grade active ingredients captan and fludioxonil induced the breaks and alkali-labile sites in the DNA of animal bone marrow cells. The comparison of the genotoxicity assessment results obtained by the comet assay and results of analysis of the TBA-active product concentrations in the rat blood serum suggests that the observed primary DNA damage upon exposure to the captan and fludioxonil combination can be mediated by the induction of lipid peroxidation and subsequent interaction of the resulting products with nucleic acids. Conclusion. The results indicate that some pesticides in combination can damage hereditary material in mammalian cells. Therefore, in order to ensure the safe use of pesticides for public health it is necessary to take into account the data on the genotoxicity not only of individual pesticide technical grade active ingredients but also their combinations.


2015 ◽  
Vol 17 (4) ◽  
Author(s):  
N. O. Hevkalyuk

<p>There was set the intensification of lipid peroxidation, as evidenced by the increasing content of DC and MDA<br />in serum of patients with ARV I children on the background discoordination functioning of the AOC , which manifests<br />itself in an increase in activity of ceruloplasmin and the decrease in saturation of transferrin and iron content of<br />catalase in blood serum, the growth of endogenous intoxication, the severity of which depends on the severity of<br />the pathological process.</p>


2015 ◽  
Vol 96 (5) ◽  
pp. 756-759 ◽  
Author(s):  
D V Plyukhin ◽  
V E Tseylikman ◽  
O B Tseylikman ◽  
A I Sinitskiy

Aim. Determine the most informative indicators of free radical peroxidation in blood plasma for predicting the complications of dental implantation. Methods. The study included 84 patients of both with dental implants, including 31 patients without any complications and 53 patients with peri-implantitis. The levels of lipid peroxidation products and protein carbonylation were measured in peripheral blood. Results. Moderate intensification of lipid peroxidation and protein carbonylation was discovered in blood serum of patients with dental implants. Increased free radical oxidation in the blood was not limited to lipid peroxidation and resulted in increased serum levels of carbonylated proteins. Facilitation of oxidative degradation of proteins in the blood was associated with decreased resistance to «carbonyl stress», manifested as increased level of Fe+2/H2O2-induced carbonylation. Development of peri-implantitis resulted in a greater enhancement of free radical oxidation of blood. Isopropanol-soluble and heptane-soluble Schiff bases level was increased in blood serum as well. Similar to patients with dental implants, increased levels of carbonylated proteins was observed in blood serum at peri-implantitis. However, free radical oxidation was more intense in patients with peri-implantitis compared to patients with dental implants. Indeed, the level of heptane-soluble Schiff bases at the group with peri-implantitis was 2 times higher as compared to dental implants group, and the level of isopropanol-soluble lipid peroxidation products in inflammatory complications after implantation has reached fourfold increase compared with patients who underwent operation without complications. Conclusion. Investigated indicators of free radical oxidation may be used as markers of peri-implantitis. Among them, the most informative indicators are Schiff bases and metal-catalyzed protein oxidation.


1990 ◽  
Vol 110 (3) ◽  
pp. 1247-1249
Author(s):  
N. A. Boldyrev ◽  
A. V. Kozlov ◽  
A. V. Zmyzgova ◽  
O. A. Azizova ◽  
I. M. Roslyi ◽  
...  

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.


2017 ◽  
Vol 8 (3) ◽  
pp. 438-443 ◽  
Author(s):  
B. Gutyj ◽  
Y. Grymak ◽  
M. Drach ◽  
O. Bilyk ◽  
O. Matsjuk ◽  
...  

The notion “endotoxin” is conditional, for any normal metabolit has a toxic impact of its excessive accumulation in organism. Endotoxins include products of breakdown of tissue proteins, peroxides and other products of free radical oxidation, low molecular weight toxins, toxins of microorganisms. Current knowledge on the mechanism of endotoxin action on the organism of pregnant cows is based on the key role of the immune system: it provides animals with protection against the infections, eliminates extraneous elements of endogenous and exogenous origin. It is defined that under endogenous intoxication, toxic metabolites suppress the activity of immune system of organism, decreases the resistability of an organism to negative effects of environmental factors. Animals under endogenous intoxication had the following clinical symptoms: swelling of mammal gland, edemas of external genitals, anemia of mucous membranes, functional disorders of proventriculuses and intestines, animals were stressed. It was defined that under endogenous intoxication in 8–9 months of pregnancy, blood of highly-productive cows had a tendency of decrease in the number of erythrocytes by 21.0%, in the level of hemoglobin – by 24.3%, increase in the number of leucocytes by 7.6% compared to the value for blood of cows with physiological pregnancy process. The development of endogenous intoxication among pregnant cows causes disorders in protein-synthesizing function of liver, which is indicated by decrease in the level of total protein and its fractions. It was defined that endogenous intoxication decreased the content of total protein in blood by 18.4%. Over the period of study, among pregnant cows under the development of endogenous intoxication, heightened activity of amino transferaces in the blood was observed. In the ninth month of pregnancy, the activity of amino transferaces in blood serum of cows from experimental group increased by 28.6%, and the activity of aspartate aminotransferace increased by 20.1% relatively. The activity of amino transferaces and decrease in the level of total protein and its fractions in blood serum is one of the first biochemical studies on the diagnosing endotoxin manifestations and indicates destructive processes in liver. It was defined that pregnant cows under the development of endogenous intoxication suffer disorders in detoxicating function of liver and disorders in filtrating function of kidneys. The developing endogenous intoxication of pregnant cows suppresses the activity of enzymes in their glutathione system of antioxidant protection, which is indicated by decrease in the activity of glutathione peroxidase by 27.5 %, glutathione reductase by 42.9%, glucose-6-phosphate dehydrogenase by 11.2% in blood serum. The lowest activity of enzymes of glutathione system in blood of highly-productive cows under endogenous intoxication was observed in their ninth month of pregnancy, which is related to increase in activation of processes of lipid peroxidation and misbalance between the activity of antioxidant system and intensity of lipid peroxidation. Reliable increase in the content of lipid hydroperoxides by 70.9% and in concentration of malondialdehide by 54.8% was observed. Misbalance towards generation of active forms of oxygen and their metabolites, exhaustion of antioxidant system and disorders in balance cause oxidative stress. 


Sign in / Sign up

Export Citation Format

Share Document