Enzymes In Blood Plasma Research Articles

The effect of solarium light therapy on selected biological and biochemical parameters of peripheral blood in young and old horses.

The aim of the study was to assess the impact of solarium light therapy on selected biological and biochemical parameters of peripheral blood in recreational horses. The study involved 10 horses divided into two groups of young (aged 5 to 7 years) and old (aged 14 to 19 years) individuals. All animals participated in light therapy sessions every other day. Blood was sampled three times during the study: before the treatment, after five light sessions, and after ten light sessions. Morphological parameters, the activity of antioxidant enzymes, TAS values, and the levels of glutathione (GSH), vitamin D3, vitamin C, and malondialdehyde (MDA) were measured in the whole blood. Light therapy contributed to an increase in MCV, HDW, MCVr, CHr and MPV indices, and simultaneously a decrease in the basophil counts, MCHC, RDW and CHCMr indices in both groups of horses (p ≤ 0.05). At the same time reticulocytes fell in older whereas white blood cells and monocytes counts expanded in younger individuals. The treatment also increased the activity of glutathione reductase (GR) and glutathione peroxidase (GPx) in young but decreased the activity of mentioned enzymes in blood plasma of old horses. The total antioxidant status (TAS) of the blood plasma rose progressively, whereas GSH levels declined in all individuals. Moreover, vitamin D3 levels did not change, whereas vitamin C levels gradually decreased during the experiment. The therapy also helped to reduce levels of MDA in the blood plasma, especially of older horses (p ≤ 0.05). In turn, GPx and GR activities as well as MDA levels significantly declined, whereas GSH levels notably elevated in erythrocytes (p ≤ 0.05). Solarium light therapy appears to have a beneficial impact on the morphological parameters and antioxidant status of blood in recreational horses in the winter season. However, the observed results could in part be attributed to the natural physiological adaptation of each individual organism to the treatment.

Rationally Designed Functionalization of Single-Walled Carbon Nanotubes for Real-Time Monitoring of Cholinesterase Activity and Inhibition in Plasma.

Enzymes play a pivotal role in regulating numerous bodily functions. Thus, there is a growing need for developing sensors enabling real-time monitoring of enzymatic activity and inhibition. The activity and inhibition of cholinesterase (CHE) enzymes in blood plasma are fluorometrically monitored using near-infrared (NIR) fluorescent single-walled carbon nanotubes (SWCNTs) as probes, strategically functionalized with myristoylcholine (MC)- the substrate of CHE. A significant decrease in the fluorescence intensity of MC-suspended SWCNTs upon interaction with CHE is observed, attributed to the hydrolysis of the MC corona phase of the SWCNTs by CHE. Complementary measurements for quantifying choline, the product of MC hydrolysis, reveal a correlation between the fluorescence intensity decrease and the amount of released choline, rendering the SWCNTs optical sensors with real-time feedback in the NIR biologically transparent spectral range. Moreover, when synthetic and naturally abundant inhibitors inhibit the CHE enzymes present in blood plasma, no significant modulations of the MC-SWCNT fluorescence are observed, allowing effective detection of CHE inhibition. The rationally designed SWCNT sensors platform for monitoring of enzymatic activity and inhibition in clinically relevant samples is envisioned to not only advance the field of clinical diagnostics but also deepen further understanding of enzyme-related processes in complex biological fluids.

Effects of fabomatisol under lead intoxication in rat experiment

The conducted study indicates the priority use of the drug fabomatizole to protect living systems from the negative effects of lead acetate.Aim: To study the mechanisms of fabomatizole effect on the nature of changes in redox reactions, NO-forming function of the endothelium, cholesterol metabolism and functional parameters in rats with lead intoxication.Material and Methods. The study was carried out on 60 Wistar rats. Lead intoxication was induced by intramuscular administration of lead acetate at a dose of 5 mg/kg of animal weight for a month. At the end of the intoxication period, Fabomatizol was administered at a dose of 10 mg/kg for a month. Next, blood and tissue samples were taken from rats to determine the activity of oxidative, antioxidant, enzymatic systems, nitric oxide metabolism, and blood lipid spectrum.Results. The data obtained showed that intramuscular administration of fabomatisol in case of lead intoxication has an antioxidant effect and inhibits lipid peroxidation (LPO) activity. Under the influence of fabomatizol, nitric oxide metabolism andtotal nitric oxide metabolites (NOx) content significantly increased, and a negative correlation was found between the malondialdehyde level, superoxide dismutase activity and NOx. At the same time, the study found a decrease in the expression level of eNOS as the cause of a reduced concentration of NOx in the blood. L-arginine availability for eNOS was disturbed by atherogenic low density lipoprotein (LDL). Treatment with fabomatizol against the background of lead intoxication caused a decrease in total cholesterol, LDL cholesterol and an increase inhigh density lipoprotein cholesterol. By inhibiting lipid peroxidation in the cells of the renal and hepatic tissues, fabomatizol contributed to the restoration of lipid-protein interactions and the functional activity of Na and K-activated ATPase in the renal interstitium. Simultaneously, there is an activation of Na,K-ATP-ase in the hepatocyte and a decrease in the level of organ-specific enzymes in the blood plasma.Conclusion. The results obtained are evidence of the antioxidant properties of fabomatisol in lead intoxication, its ability to induce the activity of antioxidant system (AOS enzymes, stimulate the NO-forming function of the endothelium, NOx production and the activity of the membrane enzyme – Na,K-ATP-ase in the renal and hepatic tissues and reduce the level of organ-specific enzymes in blood plasma.

Analysis of Mechanisms Underlying the Development of Endothelial Dysfunction and Functional Disorders in Experimental Diabetes Mellitus and Their Pathogenetic Correction.

On the model of alloxan-induced diabetes mellitus in rats, the development of oxidative stress and violation of the NO-producing function of the endothelium and internal organs was established. Structural changes in the vascular endothelium due to increased level of atherogenic LDL preventing access of L-arginine to endothelial NO synthase (eNOS) contribute to the development of endothelial dysfunction, which is paralleled by oxidative modification of L-arginine and the formation of inhibitors of eNOS expression (asymmetric dimethylarginine, L-NAME). These findings are indicative of reduced eNOS expression in experimental diabetes mellitus. Administration of L-arginine and its combination with L-carnitine caused an increase in the production NO metabolites and eNOS expression levels by 2.13 and 3.8 times, respectively. In parallel, improvement in the electrolyte excretory function of the kidneys, an increase in the Na,K-ATPase activity in organ homogenates, and a decrease in organ-specific enzymes in blood plasma were observed, which indicates the effectiveness of the correction of the identified violations. A way to eliminate metabolic and functional disorders with combinations of L-arginine and L-carnitine is pathogenetically substantiated. This methodological approach can be recommended for the prevention of microvascular complications in patients with type 1 diabetes mellitus.

Prolonged Apnoea after Suxamethonium, Diagnosis & Treatment: A Case Report

Plasma Cholinesterase Deficiency is an autosomal recessive inherited blood plasma enzyme abnormality in which the Body’s production of butyrylcholinesterase is impaired resulting in prolonged apnoea following depolarising muscle relaxants like Succinyl Choline (Suxamethonium) or Mivacurium. This is associated with paralysis & little or no neurological response. Individuals with plasma cholinesterase (Pseudocholinesterase) deficiency are often diagnosed only after experiencing prolonged apnoea after standard intubating dose of Succinyl Choline. Plasma Cholinesterase is not produced artificially & can be supplied through Blood & fresh frozen plasma. Hence treatment includes mechanical ventilation & supplementation of either whole blood or fresh frozen plasma.

Influence of the Herbal Preparation "Licorice Oil" on the State of Hematopoiesis in Rats Under Ionizing Irradiation

The radioprotective effect of the herbal preparation "Licorice oil" on the hematopoietic system and oxidative stress was studied. The experiment was carried out on 30 male Wistar rats, divided into 3 groups. The first group is control group, the second is irradiation with 6Gy, third group - a week before irradiation and two weeks after, received "Licorice oil" intragastrically at a dose of 2.5 ml/kg of body weight. Gamma irradiation significantly reduced the number of erythrocytes, hemoglobin, hematocrit, leukocytes, thrombocytes in peripheral blood and bone marrow cellularity. The frequency of micronuclei in polychromatophilic erythrocytes of the bone marrow has significantly increased. The level of lipid peroxidation in the blood increased against the background of a significant decrease in the activity of antioxidant enzymes. The introduction of "Licorice oil" for 21 days provided a protective effect. In application of "Licorice oil", there was an increase in the number of cellular elements in the peripheral blood and against the background of a decrease in the frequency of micronuclei in the bone marrow. The activity of antioxidant enzymes in blood plasma increases against the background of a decrease in the amount of peroxidation products. The herbal preparation "Licorice oil" exhibits antioxidant activity, reduces genotoxicity and cytotoxicity under gamma irradiation. "Licorice oil" can be used to prevent radiation damage.

THE IMPACT OF POWDERS AND OIL ADDITIVES OF CINNAMON AND CLOVE IN QUAILS DIET AS ANTISTRESSOR AND ANTIOXIDANT DURING HOT MONTHS

The present investigation was carried out to compare the impact of cinnamon and clove powders and their oil additives as anti-stressors on quails under heat stress which is one of the riskiest environmental conditions that influence poultry all over the world in general and Iraq in particular. For this purpose, 420 quails (5 weeks old) were chosen and randomly grouped into seven treatments with different treatments (T0: control (standard diet), T1: 2 g clove powder/kg diet, T2: 1 ml clove oil/kg diet, T3: 2 g cinnamon powder, T4: 1 ml cinnamon oil/kg diet, T5: 1 g clove powder+1 g cinnamon powder/kg diet, T6: 0.5 ml clove oil+0.5 ml cinnamon oil/kg diet) added to standard diet. The quails were fed with these diets for 17 weeks. The results indicated that adding clove, cinnamon, and their oils to quail diet under heat stress led to significantly (p<0.05) lower relative density of heat shock protein HSP40, HSP70, HSP90, the concentrations of (corticosterone hormone, MDA and CK oxidative stimulator enzymes in blood plasma) and heterophil-to-lymphocyte (H/L) ratio, however, the concentrations of antioxidant enzymes AOA, GPx, SOD and CAT in blood plasma were significantly (p<0.05) higher in all additive treatments compared with the control group. It was also seen that treatment with the oil additives resulted in higher improvement than the powder additives.

МОРФОЛОГИЧЕСКИЕ ПОКАЗАТЕЛИ КРОВИ, РЕЗИСТЕНТНОСТЬ ОРГАНИЗМА И МЯСНАЯ ПРОДУКТИВНОСТЬ ПОРОСЯТ ПРИ ПРИМЕНЕНИИ 20-ГИДРОКСИЭКДИЗОНА

The effectiveness of using 20-hydroxyecdysone in the diet of piglets during the growing period and its effect on the formation of natural resistance, the antioxidant defense system of the body and their meat productivity were studied. The introduction of 20-hydroxyecdysone into the diet at the rate of 30 mg per kg of feed positively influenced on the bactericidal and lysozyme activity of blood serum, which in the experimental group were higher by 12,9 and 14,0%, respectively, compared with the control. The activity of superoxide dismutase and catalase enzymes in blood plasma in piglets of the experimental group was statistically significantly higher compared to the control. On the contrary, the content of malondialdehyde in blood plasma was statistically significantly lower in piglets of the experimental group compared with the control (17,1%, P≤0,01). In piglets of the experimental group, in comparison with the control, the output of muscle tissue (by 5,3%, P≤0,01), the area of the “muscle eye” (34,5%, P≤0,05) was statistically significantly higher, with less adipose tissue outlet.

The Importance of Live‐Well Transport in the Physiological Disturbance Experienced by Smallmouth Bass in Tournaments on Large Water Bodies

AbstractCompetitive fishing has become an important element of recreational fisheries for black bass Micropterus spp. in North America. The vast majority of competitive events involve a “live‐release” format, where fish are held in a boat's live well after being angled and are then released following the weigh‐in. We examined the frequency and importance of physical impacts between Smallmouth Bass Micropterus dolomieu and the walls of the live well when tournaments are held on large water bodies. Using an experimental live well that included a video recorder, we determined the number of collisions between Smallmouth Bass and the walls of the live well when a 5.6‐m boat was driven on Lake Ontario. During these experiments, 10 of 28 Smallmouth Bass lost equilibrium and became inverted. Live‐well transport also resulted in elevations of intracellular enzymes in blood plasma that were used as indicators of cell damage. The results of these experiments indicate that physical impacts with the walls of the live well may be an important factor contributing to the physiological disturbance experienced by Smallmouth Bass in tournaments on large water bodies. Our results also show that this disturbance can be reduced by simply padding the live well. These findings have important implications for fisheries managers, as well as the competitive angling community.

Glutathione peroxidase of blood of dogs and cats with mammary tumors

For timely diagnostics and successful treatment of mammary tumors in human and animals a necessary search of compounds that can be the biomarkers of this disease is needed. The aim of our work was to measure the activity of glutathione peroxidase (GPx) in blood plasma and erythrocytes of dogs and cats with mammary tumors and healthy animals for establishment of intercommunication between enzyme's activity and tumors. For researches took away blood at three groups of animals: 1) four healthy females of dogs (Canis familiaris) – the German Shepherd dogs by age 3, 6, 7 and 7; 2) four females of dogs with mammary tumors – the Russian Spaniel dog by age 8, Boxer dog by age 9 and the German Shepherd crossbred dogs by age 11 and 12; 3) four females of cats (Felis catus) with mammary tumors – crossbred cats by age 6, 8 and 10 and the Persian crossbred cat by age 13. Activity of GPx was determined by decrease of reduced glutathione in a presence of hydrogen peroxide for time unit with a count on the gramme of protein in blood plasma, or haemoglobin in erythrocytes. In the sick dogs’ erythrocytes the activity of GPx presents 30.45 ± 3.08 mmol GSH/min×g haemoglobin and it is more than for the healthy animals of 27.84 ± 5.24 mmol GSH/min×g haemoglobin, these differences aren't statistically reliable however. This index is the highest for the sick German Shepherd crossbred dog aged 11 and presents 38.5 mmol GSH/min×g haemoglobin. In sick dogs’ activity of GPx in blood plasma is 7.45 ± 1.60 mmol GSH/min×g protein and it is statistically reliable less than the healthy animals of 12.77 ± 1.18 mmol GSH/min×g protein. This index is the lowest for the the 12 years old sick German Shepherd crossbred dog and it is 3.41 mmol GSH/min×g protein. In sick cats activity of GPx in erythrocytes is 41.57 ± 4.10 mmol GSH/min×g haemoglobin, and the greatest it is in the sick crossbred cat age 10 – 52.52 mmol GSH/min×g haemoglobin. The activity of the enzyme in blood plasma of sick cats is 11.58 ± 1.99 mmol GSH/min×g protein and this index is similar to the healthy dogs. Activity of GPx of the erythrocytes of dogs and blood plasma of cats with mammary tumors did not differ from healthy dogs. The activity of GPx of sick dogs only in blood plasma is less than in healthy ones. It can be the consequence of this “exhaustion” of the enzyme and its involving in the process of neutralizing of active forms of reactive oxygen species in those tissues of organism where oxidizing stress develops. Next to the study of expression on the future it is necessary to pay attention to the study of polymorphism of GPx.

Evaluation of the Effectiveness of the Effects of Multi-vector Drugs on the State of the Antioxidant System in Experimental Acute Pyelonephritis in Conditions of Concomitant Diabetes

The objective: evaluation of activity of the activity of enzymes of the antioxidant system, superoxide dismutase and catalase in plasma and tissues of the kidneys of rats under the conditions of modeling acute pyelonephritis and concomitant streptozotocin type 1 diabetes mellitus.Materials and methods. Experimental studies were performed on rats of the Vistar line with a body mass of 200-300 g aged 8-9 months. Simulation of acute pyelonephritis in the blood and tissues of the kidneys in rats caused a significant decrease in the activity of superoxide dismutase and catalase enzymes in blood plasma and kidneys in relation to the norm, which is associated with the development of oxidative stress in the tissues of kidneys in laboratory animals.Results. The activity of superoxide dismutase and catalase in the blood plasma and kidneys of animals with acute pyelonephritis in type I diabetes was significantly different when compared with the corresponding parameters of the group with acute pyelonephritis. These changes in the activity of superoxide dismutase and catalase testify to the pathogenetic significance of the disruption of the activity of antioxidant enzymes in the development of acute pyelonephritis and concomitant type I diabetes mellitus under conditions of oxidative stress.Conclusion. The use of multi-vector drugs (аrmadin and ribonucleic acid) promoted an increase in the activity of antioxidant enzymes in animals under the conditions of modeling acute pyelonephritis with concomitant type I diabetes mellitus: the activity of superoxide dismutase increased significantly in blood plasma, and the activity of catalase in blood plasma and kidney tissue relation to a group with traditional medicamental effects. It should be noted that the use of multi-vector drugs with antioxidant properties promotes an increase in the activity of antioxidant enzymes in the blood plasma and in the kidneys of rats, which significantly reduces the pathogenic effect of oxidative stress.

Anti-diabetic Effect of Boerhavia diffusa L. Root Extract via Free Radical Scavenging and Antioxidant Mechanism

The present study was proposed to assess the in vitro free radical-scavenging activity of B. diffusa methanolic extract (BDME) and its modulatory effect against streptozotocin (STZ) induced diabetes in male Wistar rats. Experimental diabetes was induced in Wistar albino rats by administering single dose of STZ 40 mg/kg. One week later rats with blood glucose level >200 mg/dL were segregated as diabetes in three groups each containing 6 rats in number. Total phenolic content in B. diffusa methanol extract (BDME) was found to be 87 mg of gallic acid equivalents/g extract and total flavonoid content found to be 54.1 mg of quercetin equivalents/g extract. Its extract also exhibited DPPH (IC50, 163.1±6.7 μg/mL), nitric oxide (295 μg/mL) and H2O2 (159±5.25 μg/mL) radical scavenging activity. Pre-treatment with BDME (100 and 200 mg/kg b.w.) in streptozotocin-induced diabetic rats resulted in significant improvement in blood glucose, blood plasma enzymes SGOT, SGPT and ALP, weight loss, total protein, serum insulin and liver glycogen levels. Furthermore, it restores the activity of antioxidant enzymes viz. SOD, CAT and GPx. Thus, the result suggests that BDME employed significant anti-diabetic effect in Wistar rats which is associated with its free radical scavenging and antioxidant activity.

The activity of antioxidant enzymes in blood plasma and eggs of laying hens kept in various rearing systems during the summer heat period

The activity of antioxidant enzymes in blood plasma and eggs of laying hens kept in various rearing systems during the summer heat period

Evaluation of Antioxidant Activity of Dihydroquercetin Complexes with Biogenic Metal Ions

The antioxidant activity of dihydroquercetin (DHQ) complexes with zinc, copper(II) and calcium was studied in vitro in blood plasma of healthy donors. The state of lipid peroxidation (LPO) in blood plasma was assessed by the content of malondialdehyde (MDA), diene (DC) and triene (TC) conjugates. The effect of DHQ and the complexes on the activity of the catalase enzyme in blood plasma was determined. It was found that DHQ complex with zinc ion reduces the MDA content in blood plasma by 14.9% compared with the control, which is twice as high as for DHQ (7.5%). The corresponding parameters of DHQ complexes with copper(II) and calcium ions were 11.2 and 3.7%, respectively. The effect of the complexes on the decrease in the DC and TC content in blood plasma compared with the control is comparable with the corresponding parameters for DHQ. The DHQ complex with zinc ion increases the catalase activity by 1.5% compared with DHQ. The complexes containing copper(II) and calcium ions increase the catalase activity no more than DHQ.

Activity of blood plasma enzymes and the productive quality of animals depending on the level of protein and energy in the ration of lactating ewes

We studied the milk production, the condition of nutritional status, the intensity of growth and development of suckling lambs and the activity of individual enzymes in the blood plasma with optimization of the level of protein and energy in rations of lactating ewes of Ascanian meat and wool breed in the Foothills of the Carpathians. It is known, that the geochemical zone of the Carpathian region is characterized by specific protein composition and energy value of feeds. Therefore, studies aimed at adjusting the rations of pregnant and lactating ewes of the Askanian breed in this zone according to the level of protein and energy in the winter-stall period and their influence on the productive qualities and course of metabolism in animals, have an important scientific and practical significance. The study was carried out on 2 groups of lactating ewes-analogues (10 heads each) of Askanian meat and wool breed with crossbred wool in the «Hrusyatychi» Farm of the Institute of Agriculture of the Carpathian region of the National Academy of Sciences, during the stall period. The duration of the experiment is 90 days. The diet of the ewes of the control group consisted of 1.6 kg of hay meadow, 0.5 kg of whole grain of oats and 0.5 kg of compound feed according to the prescription K80-6-89, the research group's ewes received experimental mixed feeds, in which the part of the grain base was replaced with pea bran, sunflower and canola rapeseed meal and linseed meal. The diet of the control and experimental groups differed insignificantly. The diet of the control group of ewes contained 21.7 MJ of exchange energy, 187 g of digestible protein, 2.29 kg of dry matter, and in the diet of the experimental group, respectively, 22.1 MJ of exchange energy, 188 g of digestible protein and 2.26 kg of dry matter . In one kilogram of dry matter, the fodder of the sheep of the control group contained 9.5 MJ of exchange energy, and the experimental group animals – 9.8 MJ. It was found, that adjusting the level of protein and energy in the standard feed for lactating ewes in the zone of the Carpathians by introducing into it of local high-protein supplements provides maintaining the weights for the lactation period; increase the average daily milk yield after suckling lambs by 23.8%; increase the average daily growth of suckling lambs by 6.7–13.9%; physiological level of activity of alanineaminotransferase, aspartateaminotransferase and lactatedehydrogenase in blood plasma.

SYSTEM ANALYSIS OF METABOLIC PROFILE OF BLOOD IN PATIENTS WITH THERMAL TRAUMA

Aim: to make multiparametric analysis of blood metabolic profile in early period of burn disease. Materials and methods: we tested blood samples of 15 healthy adults (control group) and 60 patients with thermal trauma (main group — II–IIIA, B degree of burn, more then 15 bsp). Parameters of lipid metabolism, level of glucose, lactate, malonic dialdehyde and some enzymes in blood plasma and erythrocytes were estimated. Results: in early period of burn disease we fixed the clear metabolic disorders, including tissues hypoxia, activation of plasma transaminases and oxidoreductases, inhibition of detoxication system, induction of oxidative stress. Connection of metabolic changes, associated with burn disease, was registered. It supported by numerous correlations between studied parameters, formed from first day after trauma. Conclusions: our data expand the knowledge about mating metabolic changes of catalytic activity of blood enzymes, forming in early period of burn disease (system metabolic disadaptation), and diagnostic value of some blood biochemical parameters in estimation of burned patient metabolism.

Effect of vitamin E and zinc supplementation on liver enzymatic profile of pre- and post-partum Sahiwal cows

The study was conducted to elucidate the changes in circulatory plasma levels of hepatic enzymes in vitamin E and zinc supplemented periparturient Sahiwal cows. Sahiwal cows (18) were selected from the institute herd, apparently healthy and in advanced state of pregnancy. The cows were randomly divided into 3 groups 6 cows in each, viz. control, treatment 1 (T1) and treatment 2 (T2). Control group was fed a control diet as practiced for pregnant cows in NDRI dairy farm. The treatment 1 (T1) group was supplemented with zinc @ 60 ppm/day/cow and treatment 2 (T2) group was supplemented a mixture of vitamin E @ 1000 IU/day/animal and zinc @ 60 ppm/ day/cow with control diet during day 60 prepartum to day 90 postpartum. Plasma was analyzed for alkalline phosphatase (ALP), alanine aminotransferase (ALT) and aspartate aminotransferase (AST). ALP levels were differing significantly in all 3 groups. ALT level was significantly lower in treatment 2 as comparison to its level of both control and treatment 1 animals. AST level was also significantly lower in treatment 2 as comparison to its level of both control and treatment 1 animals. The study indicated that vitamin E and zinc supplementation lowers these hepatic enzymes in blood plasma, prevents oxidative damage of liver and improves the health condition of liver.

System analysis of metabolic profile of blood in patients with thermal trauma

To make multiparametric analysis of blood metabolic profile in early period of burn disease. We tested blood samples of 15 healthy adults (control group) and 60 patients with thermal trauma (main group--II-4IIIA, B degree of burn, more then 15 bsp). Parameters of lipid metabolism, level of glucose, lactate, malonic dialdehyde and some enzymes in blood plasma and erythrocytes were estimated. In early period of burn disease we fixed the clear metabolic disorders, including tissues hypoxia, activation of plasma transaminases and oxidoreductases, inhibition of detoxication system, induction of oxidative stress. Connection of metabolic changes, associated with burn disease, was registered. It supported by numerous correlations between studied parameters, formed from first day after trauma. Our data expand the knowledge about mating metabolic changes of catalytic activity of blood enzymes, forming in early period of burn disease (system metabolic disadaptation), and diagnostic value of some blood biochemical parameters in estimation of burned patient metabolism.

Supplementation with sodium selenite and selenium-enriched microalgae biomass show varying effects on blood enzymes activities, antioxidant response, and accumulation in common barbel (Barbus barbus).

Yearling common barbel (Barbus barbus L.) were fed four purified casein-based diets for 6 weeks in outdoor cages. Besides control diet, these were supplemented with 0.3 mg kg−1 dw selenium (Se) from sodium selenite, or 0.3 and 1.0 mg kg−1 from Se-enriched microalgae biomass (Chlorella), a previously untested Se source for fish. Fish mortality, growth, Se accumulation in muscle and liver, and activity of selected enzymes in blood plasma, muscle, liver, and intestine were evaluated. There was no mortality, and no differences in fish growth, among groups. Se concentrations in muscle and liver, activity of alanine aminotransferase and creatine kinase in blood plasma, glutathione reductase (GR) in muscle, and GR and catalase in muscle and liver suggested that selenium from Se-enriched Chlorella is more readily accumulated and biologically active while being less toxic than sodium selenite.

Activity of superoxide dismutase, catalase and glutathione peroxidase in plasma and lysates of chronic lymphocytic leukemia patients

Chronic lymphocytic leukemia is characterized by the progressive accumulation of immature lymphocytes due to inhibited apoptosis. Oxidative stress has a significant role in the pathogenesis of diseases as well as in cancerogenesis itself. The aim of this research was to determine the activity of antioxidative enzymes in blood plasma and in lymphocyte lysates of chronic lymphocytic leukemia patients. Fifty-one patients were divided into two groups according to Rai classification. Group A consisted of patients in stage 0 and stage I and group B consisted of stage II, III and IV patients. Group C consisted of 32 healthy individuals. Enzyme activities of catalase, superoxide dismutase and glutathione peroxidase in lymphocyte lysates of group B patients showed statistically significant decrease. Enzyme activity of catalase in group B patients' blood plasma showed statistically significant increase. Enzyme activities of superoxide dismutase and glutathione peroxidase of group B patients' blood plasma showed no statistically significant changes.