Blood Parameters In Rats Research Articles

Вплив L-глутамінової кислоти та L-цистеїну на показники гемопоезу та імунного статусу щурів за токсичної дії фосфорорганічних сполук

The rapidly increasing use of xenobiotics in our life stimulates to pay greater attention to the toxic effect of these compounds on human and animal organism. The purpose of our work was to study the changes in hematological and immunological parameters of rat blood under the action of chlorpyrifos (CPF) and additional administration of L-glutamic acid (L-Glu) and L-cysteine (L-Cys) both separately and in the complex. Material and methods. Studies were conducted on albino Wistar rats (males), weighing 200–220 g. They were housed in cages under standard laboratory conditions with a 12-h light/12-h dark cycle. All rats had free access to a standard rodent diet and water ad libitum. After 1 week of acclimatization, the rats were divided into five experimental groups. Animals from first (D1), second (D2), third (D3) and fourth (D4) experimental groups were intraperitoneally exposed to chlorpyrifos. After that rats from the second experimental group were treated with an aqueous solution of L-Glu rats of the third experimental group received L-Glu and L-Cys, rats of the fourth experimental group took L-Cys. Rats of the control group were administered to the appropriate amount of saline. Rats of the control group were administered to the appropriate amount of saline. After the end of exposure period, animals were euthanized. The total number of erythrocytes, leukocytes, white blood cell count, indicators of T- and B-cell immunity was determined in the blood. All procedures were conducted according to the European Convention for the Protection of Vertebrate Animals used for Experimental and Other Scientific Purposes (Strasbourg, 1986) and General Ethical Principles of Experiments using Animals (First National Congress of Bioethics, Kyiv, 2001), in accordance with current legislation on animal experimentation in Ukraine. Results and discussion. Our results showed that the chlorpyrifos group of animals reflected in decrease in the total number of erythrocytes, the number of lymphocytes on the background of neutrophil increasing, changes in the number of total T-lymphocytes with medium receptor density. Conclusion. Additional administration of amino acids had a positive effect on animals

Alpha-terpineol complexed with beta-cyclodextrin reduces damages caused by periodontitis in rats.

This study aimed to assess the effectiveness of the treatment with alpha-terpineol (αTPN) complexed with beta-cyclodextrin (βCD) on oral, blood, and hepatic parameters in ligature-induced periodontitis. Forty female rats were distributed among the following groups: control (vehicle solution), periodontitis (ligature+vehicle solution), 5mg/kg of αTPN-βCD (ligature), and 25mg/kg of αTPN-βCD (ligature). Compounds were administered daily via intraperitoneal injection over a 20-day period. Periodontitis was induced with the bilateral insertion of ligatures around the first lower molars of each rat. Oral parameters, as well as blood biomarkers, were measured: histopathological assessment of the hepatic tissue was carried out using light and transmission electron microscopy. The treatment with αTPN-βCD significantly improved several oral parameters and blood biomarkers in comparison with rats with periodontitis. In addition, the treatment with αTPN-βCD significantly ameliorated the steatosis score and reduced the number of lipid droplets and the amount of foamy cytoplasm in the hepatocytes of rats with periodontitis. The results obtained suggest that the treatment with αTPN-βCD improves several oral and blood parameters in rats with experimental periodontitis. In addition, hepatic alterations caused by periodontitis were ameliorated in the rats treated with αTPN-βCD.

Toxicological Profile of Nanostructured Bone Substitute Based on Hydroxyapatite and Poly(lactide-co-glycolide) after Subchronic Oral Exposure of Rats.

Novel three-dimensional (3D) nanohydroxyapatite-PLGA scaffolds with high porosity was developed to better mimic mineral component and microstructure of natural bone. To perform a final assessment of this nanomaterial as a potential bone substitute, its toxicological profile was particularly investigated. Therefore, we performed a comet assay on human monocytes for in vitro genotoxicity investigation, and the systemic subchronic toxicity investigation on rats being per oral feed with exactly administrated extract quantities of the nano calcium hydroxyapatite covered with tiny layers of PLGA (ALBO-OS) for 120 days. Histological and stereological parameters of the liver, kidney, and spleen tissue were analyzed. Comet assay revealed low genotoxic potential, while histological analysis and stereological investigation revealed no significant changes in exposed animals when compared to controls, although the volume density of blood sinusoids and connective tissue, as well as numerical density and number of mitosis were slightly increased. Additionally, despite the significantly increased average number of the Ki67 and slightly increased number of CD68 positive cells in the presence of ALBO-OS, immunoreactive cells proliferation was almost neglected. Blood analyses showed that all of the blood parameters in rats fed with extract nanomaterial are comparable with corresponding parameters of no feed rats, taken as blind probe. This study contributes to the toxicological profiling of ALBO-OS scaffold for potential future application in bone tissue engineering.

Effect of sodium selenite and feed additive “Metisevit plus” on morphological parameters of blood of rats at the intoxication of Cadmium and Lead

Heavy metals, Lead and Cadmium, are hazardous environmental pollutants. In the body of mammals, Cadmium and Lead have a toxic effect on a number of organs and systems. The mechanism of action of these poisons is to inhibit the activity of enzyme systems by blocking carboxyl, amine and SH groups of protein molecules. The aim of the study was to investigate the effect of sodium selenite and feed additive “Metisevit plus” on the morphological parameters of rat blood by Cadmium and Lead intoxication. The experiments were carried out on 200–220 g male Wistar rats, out of which 3 groups of animals were formed: a control and two experimental animals. Rats in the control and experimental groups were administered 16.6 % aqueous lead acetate at a dose of 100 mg/kg and 0.029 % aqueous cadmium chloride at a dose of 2.0 mg/kg. The rats of the first experimental group additionally used sodium selenite. The rats of the second experimental group additionally used the feed additive “Metisevit plus”. Lead-cadmium loading in rats was accompanied by erythrocytopenia and leukopenia. The lowest erythrocyte count was in the blood of diseased rats at 21 days, where it decreased by 41.3 %, respectively, compared to the initial values. It was found that hemoglobin level decreased to 90.3 ± 2.63 g/l during Cadmium and Lead intoxication in control rats. At the same time as the decrease in hemoglobin level and the number of erythrocytes in intoxicated rats, an increase in the average hemoglobin content in one erythrocyte of blood was observed up to 20.57 ± 1.20 pg As a result of the development of lead-cadmium intoxication in ill rats, leukopenia was noted, which, in our opinion, is associated with systemic lesions of cadmium and lead in the blood-forming organs of animals that suppress leukopoiesis. It was found that the number of leukocytes in patients of rats of group C decreased by 36.1 % compared with the initial data. The use of sodium selenite and the feed additive “Metisevit plus” in rats under lead-cadmium loading contributed to the increase in the number of red blood cells and hemoglobin level, as well as the decrease in the number of leukocytes in their blood. The improvement of normalizing effect on the morphological parameters of blood of rats under conditions of loading with heavy metals was shown by the feed additive “Metisevit plus” in comparison with sodium selenite.

Effects of Internal Exposure to 56MnO2 Powder on Blood Parameters in Rats.

The pathological effects of internal exposure to manganese dioxide-56 (56MnO2) radioisotope particles have been previously examined in rats. Here we further examine the effects of 56MnO2, focusing on changes in blood parameters. Ten-week-old male Wistar rats were exposed to 3 doses of neutron-activated 56MnO2 powder, nonradioactive MnO2 powder, or external 60Co γ-rays (1 Gy, whole body). On days 3 and 61 postexposure, the animals were necropsied to measure organ weights and clinical blood parameters, including red blood cell and white blood cell counts; concentrations of calcium, phosphorus, potassium, and sodium; and levels of alanine aminotransferase (ALT), aspartate aminotransferase, amylase, creatinine, urea, total protein, albumin, triglycerides, high density lipoprotein, total cholesterol, and glucose. In the 56MnO2-exposed animals, accumulated doses were found to be highest in the gastrointestinal tract, followed by the skin and lungs, with whole-body doses ranging from 41 to 100 mGy. There were no 56MnO2 exposure-related changes in body weights or relative organ weights. The ALT level decreased on day 3 and then significantly increased on day 61 in the 56MnO2-exposed groups. There were no exposure-related changes in any other blood parameters. Although the internal doses were less than 100 mGy, internal exposure of 56MnO2 powder showed significant biological impacts.

Biochemical parameters of rat blood in the models of chronic heart failure and chronic kidney disease at the administration of nitric oxide donor

In modern veterinary medicine, the simultaneous occurrence of chronic heart failure and chronic kidney disease is often found. However, the cause and effect often exchange places, which creates great difficulties in the animals’ treatment. Chlofusan acts on both systems. It improves cardiac and renal functions by means of providing cardioprotective and nephroprotective effects. Models of chronic heart failure and chronic kidney disease in rats provide important information on the pathophysiology of these diseases in other animal species, and the assessment of changes in the biochemical analysis of blood makes it possible to assess the state of the heart and kidneys in the study. In the course of research, the results of rat biochemical analysis were studied on models of chronic heart and kidney failure with the introduction of an exogenous nitric oxide donor. Chlofuzan contributes to a partial balance restoration of biochemical blood parameters in rats, which indicates the restoration of the mutual work of the heart and kidneys.

Изменение морфологических и биохимических показателей крови крыс при дополнительном введении в рацион аспарагината цинка

Изменение морфологических и биохимических показателей крови крыс при дополнительном введении в рацион аспарагината цинка

Preclinical examination of complex antimicrobial preparation for treating endometritis in cows

According to a statistical study an average of 40 % of infertile animals have obstetric and gynecological pathologies. Among obstetric and gynecological pathologies, the most common is an acute postpartum endometritis, which make up from 37.8 to 41 %. Therapy and Pharmacology department of the Kuban State Agrarian University has developed a drug for the cows postpartum endometritis treatment. Conducted preclinical tests prove its harmlessness, as a result of which it belongs to hazard class 4. It should be noted that the biochemical blood parameters of rats in the experiment do not go beyond the reference values. The drug has a pronounced antimicrobial effect. MBC is from 7.8 mg to 31.2 mg while MIC is from 31.2 to 62.5 mg for such strains as S. aureus, E. coli, St. xylosus, Ps. aeruginosa, P. vulgaris. The developed drug does not have an irritating and sensitizing effect and exhibits a regenerative effect. Conducted experiments on the wound healing effect of the drug prove that this drug has a high regenerative effect. The average wound healing area was 20.4 % per day.

Hepatic protein synthesis and morphological parameters in blood of rats under oxidative stress and action of feed additive Butaselmevit-plus

The intensive development of animal husbandry at the present stage requires new approaches to organizing the feeding of farm animals and the introduction of modern feed additives, which are not normally used purely as feed, but are deliberately added to feed or water to improve their quality, increase productivity and animal welfare. To prevent the development of oxidative stress in animals, we used the feed additive "Butaselmevit-plus", which in its composition contains the fruits of milk thistle, selenium, methionine and vitamins A, E and D3. The aim of the study was to investigate the effect of feed additive Butaselmevit-plus on blood morphological parameters and protein synthesis of rat liver under tetrachloromethane poisoning. For research, we used Wistar male rats, which were divided into three groups of 20 animals each. Control rats were intact. The first and second experimental group of rats were administered tetrachloromethane. Experimental intoxication in animals was performed by twice (after 48 h) intragastric administration of tetrachloromethane at a dose of 0.1 ml per 100 g of rat body weight in the form of a 50% oil solution. Experimental group R2 was fed a feed additive of Butaselmevit-plus for a dose of 0.1 g per 100 g of body weight together with the feed for experimental toxicosis for 30 days. On the basis of the conducted researches positive effect of feed additive "Butaselmevit-plus" on the organism of rats, which were intoxicated with tetrachloromethane, is shown, which is shown by normalization of hematological parameters and protein synthesis of liver function. Restoration of hematopoietic function of bone marrow of rats by intoxication with tetrachloromethane is due to the fact that the feed additive "Butaselmevit-plus" contains in its composition fruits thistle, which have a high level of vitamins A and K, and trace elements, namely: Ferum, Cuprum and Cobalt that are directly involved in hematopoiesis. When feeding Butaselmevit-plus as feed supplement, the number of red blood cells in the blood of the second experimental group of rats was higher than that of the first experimental group, but the control values reached only on the 30th day of the experiment. When using the feed additive Butaselmevit-plus in rats under conditions of oxidative stress development, the leukocyte count decreased to the optimum level.

High-Protein Diet in Combination with Resistance Training Improves Performance without Changing Blood Parameters in Rats

High-Protein Diet in Combination with Resistance Training Improves Performance without Changing Blood Parameters in Rats

The effects of quercetin on antioxidant system and some blood parameters in rats exposed to acute cadmium toxicity

The effects of quercetin on antioxidant system and some blood parameters in rats exposed to acute cadmium toxicity

Acute and Subacute Toxicity of Methanol Extract of Syzygium guineense Leaves on the Histology of the Liver and Kidney and Biochemical Compositions of Blood in Rats.

Plant medicine is the oldest form of health care known to mankind. Syzygium guineense is one of the many species of Ethiopian medicinal plants which has a long history of use as remedies for various ailments such as dysentery, diarrhea, and hypertension. In many countries, herbal medicines and related products are introduced into the market without safety or toxicological evaluation. The aim of this study was to investigate the histopathological effect of 80% methanol extract of S. guineense on liver and kidney and blood parameters of rats. For acute toxicity study, rats were randomly divided into three groups (n=4). The control group received distilled water, while the experimental groups received a single dose of 2000 mg/kg and 5000 mg/kg 80% methanolic extract of S. guineense leaves per oral. For subacute toxicity study, the rats were randomly divided into three groups (n=6). The control group received distilled water, while the experimental groups received 500 mg/kg and 1500 mg/kg 80% methanol extract of S. guineense leaves orally for 28 days. At the end of the experiment, blood samples were collected for hematology and clinical chemistry evaluations. Gross pathology and histopathology of liver and kidneys were assessed. In the acute toxicity study, rats treated with 2000 mg/kg and 5000 mg/kg showed no toxicological signs observed on behavior, gross pathology, and body weight of rats. In the subacute toxicity study rats have showed no significant changes on behavior, gross pathology, body weight, and hematological and biochemical parameters, whereas both experimental groups had a lower blood glucose level compared with the control group (p < 0.05). There were no significant differences in the gross and histopathology of the liver and kidneys of experimental animals in extract exposed groups and their counterpart control. The 80% methanol extract of S. guineense does not produce adverse effects in rats after acute and subacute treatment. Before marketing a S. guineense leaf based remedy, subchronic and chronic toxicity evaluations need to be done.

Wheat phenolics suppress doxorubicin-induced cardiotoxicity via inhibition of oxidative stress, MAP kinase activation, NF-κB pathway, PI3K/Akt/mTOR impairment, and cardiac apoptosis

The present investigation has been undertaken to reveal the protective mechanism of polyphenolics extract of whole wheat grains (WWGPE), ferulic acid and apigenin against doxorubicin (Dox)-induced cardio-toxicity. WWGPE, apigenin, and ferulic acid exhibited concentration dependent cyto-protective effect against Dox (1 μM) in rat cardiomyocytes. Dox treatment significantly (p < 0.01) induced oxidative stress in the myocardial cells via excessive ROS production, increase in iNOS expression, NADPH oxidase activation, Nrf-2/HO-1 impairment, and inactivation of cellular redox defense system. In addition, Dox significantly (p < 0.01) activated MAP kinases, NF-κB, and apoptosis in cardiac cells; while, significant (p < 0.01) impairment in PI3K/Akt/mTOR signaling was observed in Dox-treated myocardial cells. On the other hand, WWGPE, apigenin, and ferulic acid significantly (p < 0.05–0.01) attenuated Dox-induced redox stress and oxidative stress-mediated signal transduction in myocardial cells. WWGPE, apigenin, and ferulic acid treatment also could significantly (p < 0.05–0.01) reinstate Dox-mediated changes in blood parameters in rats. Histological assessments were in agreement with the biochemical findings. Results showed that, WWGPE exhibited better cardio-protective effect over ferulic acid and apigenin, which may be due to the synergy between the comprising compounds and better oral bioavailability of dietary antioxidant molecules from whole phenolic extract.

Vitamin B6 improves blood parameters in rats fed a protein-deficient diet and subjected to moderate, long-term exercise.

Vitamin B6 is necessary for many enzymatic pathways (glucose and lipid metabolism, DNA/RNA synthesis, or modulation of gene expression) and affects immune cell function and blood-forming processes. We hypothesised that supplementing a protein-deficient diet with vitamin B6 may reduce the negative impact of protein malnutrition. Here, we evaluated the effect of moderate, long-term exercise (ninety days) on selected blood parameters in rats fed a normal diet, a protein-deficient diet, or a protein-deficient diet supplemented with vitamin B6. Selected haematological, immunological, and biochemical parameters were examined. A protein-deficient diet lasting 90 days caused significant reduction in body mass, increased activity of aminotransferases (asparagine and alanine), an increased percentage of innate cells in the blood, and decreased haemoglobin concentration in the blood. Adding vitamin B6 significantly increased body and muscle mass, decreased liver parameters, and caused normalisation of haemoglobin concentration and the proportion of white blood cells in the blood. These results indicate that vitamin B6 supplementation significantly improves the health of protein-malnourished rats and paves the way for the development of novel anti-malnutrition therapies.

HEMATOLOGICAL PROFILE OF RATS ADMINISTERED WITH PROPOLIS FOLLOWING ANTITUBERCULOSIS DRUGS INDUCED TOXICITY

Antituberculosis drugs (ATD) used as standard drugs for the treatment of deadly disease tuberculosis, cause blood disorders. The present study was conducted to investigate the efficacy of propolis against ATD induced alteration in blood parameters in rats. Rats were administered with ATD for 8 weeks (3 days/week) followed by propolis at three different doses (100, 200 and 400 mg/kg) conjointly for 8 weeks (3 days/week) orally. Silymarin (50 mg/kg) was used as positive control in the study. After 8 weeks, animals were euthanized; blood was collected by retro-orbital sinus method for analysis of hematological parameters. The results of this study show a decrease in red blood cells, hemoglobin, hematocrit, mean corpuscular volume, red blood cell distribution width alongwith increase in the number of lymphocytes in ATD induced rats. Treatment with propolis extract encountered ATD induced blood parameter alteration which was evident by significant reversal in hematological indices towards control in a dose dependent manner. Thus, it can be concluded that propolis may be an agent of therapeutic choice in case of ATD induced hematological alterations.

Abstract 191: Effects of Anesthetic Agents on Blood Parameters in Rats With Acute Hemorrhagic Shock

Background: Recent studies in our laboratory indicate that isoflurane (ISO) has protective properties including improved survival in rats with hemorrhagic shock compared to ketamine and xylazine (K/X) anesthesia. The effects of these two anesthetic agents upon blood counts, gases and chemistries in the setting of hemorrhagic shock is unknown. The purpose of the present study was to examine the effects of these two commonly used anesthetic regimens on blood parameters in rats with acute hemorrhagic shock. Methods and Results: Sprague Dawley rats (both genders) were anesthetized with either intraperitoneal K/X (90mg/kg and 10mg/kg; n=12) or with isoflurane (5% isoflurane induction and 2% maintenance in room air; n=12). Rats were intubated and ventilated with room air. After heparinization, hemorrhagic shock was induced by withdrawing blood to a fixed mean blood pressure of 30 mmHg for one hour and then shed blood was reinfused. Arterial blood samples were collected at 1 hour after resuscitation with shed blood. We found that K/X was associated with lower PH and lower level of standard bicarbonate concentration (SBC) and oxygen saturation (SO 2 %) and more negative base excess; and had a significantly elevated anion gap, potassium, sodium and chloride levels compared to isoflurane (Table). Platelet counts were preserved and there was less elevation of white blood cell (WBC) in ISO (Table). There were no significant differences in PO 2 , PCO 2 , hematocrit, hemoglobin, glucose and lactate levels between the two types of anesthesia. Conclusions: The anesthesia influenced the levels of blood counts, gases and chemistries in rats with acute hemorrhagic shock, favoring ISO over K/X. Blood parameters remained essentially normal in ISO group, which may help explain the protective role of ISO in hemorrhagic shock.

Effect of Garden Cress (Lepidium sativum) Extracts on Aflatoxin B1 and Blood Parameters in Rats

The crude chloroform and methanol extracts of Lepidium sativum seeds belong to family Brassicaceae,were used in this work to study their efficiency to reduce Aflatoxin B1 in rats. The more effective of chloroformic extract which decreased Aflatoxin B1 level from 8.7 to 1.0 ppb at a dose of 300 mg/kg body weight comparing with ligalon (Silymarin) which reduced Aflatoxin B1 to 0.97 ppb in concentration of 100 mg/kg after 5 weeks, followed by methanolic extract at a dose of 300 mg/kg body weight which showed the mean value of 1.2 ppb.Also, the more effective treatments may be Silymarin in concentration of 100 mg/kg followed by chloroformic extract, while methanolic extract of Lepidium sativum seeds was represented middle effect for blood tests of rats injured with Aflatoxin B1 e.g. Serum marker enzyme parameters (MDA, SOD, ALP and Bilirubin), kidney functions (Creatinine and Urea), liver functions (ALT, AST, Total proteins, Albumin and Globulins), lipid profile (triglycerides, total cholesterol, HDL-c, LDL-c and vLDL-c ) and haematological parameters (HB, RBCs, Plt and WBCs), were determined in injured rats comparing with control rats. It is quite clear that Silymarin is considered synthetic product, so the natural extracts of garden cress are more suitable for usage due to, they considered more safety and economic products, so these extracts can be additive to foodstuffs and therapeutic drugs owing to their multi medicinal benefits.

The Influence of Enzymatic Removal of Chlorpyrifos from Feed Grain Mixes on Biochemical Parameters of Rat Blood

The Influence of Enzymatic Removal of Chlorpyrifos from Feed Grain Mixes on Biochemical Parameters of Rat Blood

Effects of Salaha-A (herbomineral drug) on blood parameters of rats and in silico inhibition of P-glycoprotein by it bioactive compounds

The drug under study is a herbomineral drug containing tortoise shell ash and ground seeds of Piper nigrum used in the treatment of cancer. Salaha-A was found to contain essential minerals that could have medicinal importance to human. Calcium was found to be the major element in the tortoise shell ash and piperine is the pioneer alkaloid found in Piper nigrum. This work evaluates the effects of Salaha-A at different doses on blood parameters and spleen tissues of rats which result in significant increase in erythrocytes, lymphocytes and granulocytes. P-glycoprotein (P-gp) over expression is found in many types and many stages of cancer cells which impaired the delivery of anticancer drug to target site of action thereby leading to ineffective treatment. Hence, an inhibition of P-gp function is an attractive strategy toward multidrug resistance. It was further postulated that the conjugation of piperine and calcium can inhibit the function of P-gp, thus, molecular docking studies were carried out to predict 3D structure of P-gp and piperine-Ca conjugate. The in silico analysis shows higher binding affinity of piperine-Ca conjugate to P-gp model (-9.54 kcal/mol) in comparison with piperine alone (-8.77 kcal/mol). Piperine-Ca conjugate has shown good pharmacokinetic properties and therefore may be co-administered with anticancer drugs as efflux modulator after undergoing further in-vitro and in-vivo studies. Key words: P-glycoprotein, herbomineral, calcium, Piper nigrum, piperine, pharmacokinetic.

The influence of enzymatic removal of chlorpyrifos from feed grain-mixture on the biochemical parameters of rat blood

Organophosphorus pesticides (OP) are used to protect crops from pests. Treatment of plants and animals with pesticides can be done during their growth or creation of conditions necessary for the long-shelf life of the agricultural products. Currently, there are many remedies for prevention and removal of intoxication consequences developed under the action of OP in living organisms. The development of biologics for the degradation of OP and biotechnologies for their application in agriculture is relevant. New biologics based on the stabilized forms of such enzyme as hexahistidine-tagged organophosphorus hydrolase (His6-OPH) in the form of nano-sized particles were tried for OP detoxification. These biologics (enzyme-polyelectrolyte complexes, EPC) were obtained in accordance to previously developed procedure by mixing solutions of His6-OPH and polyanion under certain conditions. The main purpose of this work was to evaluate the usage efficiency of EPC based on His6-OPH and polyglutamic acid for OP detoxification by analyzing biochemical blood parameters of rats consumed the grain-mixture containing chlorpyrifos. The experiment was conducted using female Sprague Dawley albino rats. Treatment of feeding grain-mixture initially containing chlopyrifos (48 mg/kg of the mixture) with EPC based on His6-OPH (1000 U/kg of the mixture) for 24 h was the most effective. The results showed that rats from the group consuming food after enzymatic removal of chlorpyrifos, had comparable acetyl cholinesterase activity in blood of rats consuming pure food (without any OP intoxication).