جستجوی مقالات مرتبط با کلیدواژه « liver enzymes » در نشریات گروه « زیست شناسی »

This research aims to determine the effect of different amounts of dietary manganese on antioxidant activity, liver enzymes and, liver tissue of rearing young beluga (Huso huso) from October to December 2022 at the Dr. Beheshti Reproduction and Genetic Stock Restoration Center of Sturgeon in Rasht, Guilan province. For this study, 180 pieces of beluga with an average initial weight of 266 ± 3.05 grams underwent a two-week adaptation period in the breeding environment, in six treatment groups and each treatment with three repetitions, with concentrations of 5 (Mn1), 10 (Mn2), 15 (Mn3), 20 (Mn4) and 25 (Mn5) mg of manganese sulfate monohydrate (MnSO4H2O) per kilogram of food and control treatment (Mn0) without adding manganese sulfate supplement were carried out in two months. At the end of each month, three pieces of fish were selected from each repetition, blood was collected and their livers were sampled for histological studies. The results revealed a significant difference in catalase and glutathione peroxidase levels among the experimental treatments (p<0.05) and their maximum amount was the control treatment fish, while superoxide dismutase levels did not differ significantly (p<0.05). Among the liver enzymes, Alkaline-phosphatase and aspartate-aminotransferase had a significant difference between the control treatment and other experimental treatments (p<0.05), but the alanine-aminotransferase enzyme had no significant difference (p<0.05). Also, different forms of tissue damage were observed in the liver tissue of all treatments, even the control (atrophy, biliary stagnation, Fat degeneration and, cellular necrosis). Based on the results of this research, the levels of 10-15 mg of dietary manganese could improve antioxidant activities, liver enzymes and reduce liver tissue damage in breeding young beluga.

This research was conducted in order to study the effect of taurine amino acid addition on performance, carcass characteristics, blood factors and liver enzymes in broilers. The experiment was conducted in 45 days in the form of a completely random design with 300 pieces of one-day-old broilers of the Ras strain, including 4 treatments, 5 repetitions and 15 birds in each repetition with the same energy and protein diets with the same rearing conditions. The experimental treatments included: the first treatment (basic diet) and the second, third and fourth treatments respectively: the basic diet along with 1 g/kg taurine amino acid, 3 g/kg taurine amino acid and 6 g/kg taurine amino acid. The results showed that body weight gain, feed consumption and food conversion ratio were significant between the experimental treatments and the control treatment during the breeding period (P0.05). But numerically, a better performance was observed with the addition of taurine supplement to the diet in these enzymes. (P > 0.05). In general, the results of this experiment showed that adding 6 grams/kg of taurine amino acid leads to an improvement in the titer of blood parameters and liver enzymes without negatively affecting the performance and characteristics of the carcass.

Statement of the problem: 

The liver is the main organ responsible for metabolic control and metabolic detoxification, which significantly contributes to the clearance of beta-amyloid plaques. 

The present study aimed to investigate the effect of aerobic exercise with a supplement of vitamin C on liver enzymes and total antioxidant capacity (TAC) values in rats with Alzheimer's disease.

This was an experimental and fundamental research with a post-test and a control group conducted on 35 aged male Sprague-Dawley rats. The samples were randomly assigned to five groups (7 cases in each group), including 1) Alzheimer, 2) the healthy, 3) the exercise group, 4) the vitamin C, and 5) the exercise+vitamin C group. Aerobic exercise was continued for eight weeks, Total protein in liver tissue was measured to assess TAC, Malondialdehyde (MDA, alanine aminotransferase (AST), alkane phosphatase (AST), and aspartate aminotransferase (AST) levels.

The values of AST, ALT and ALP, MDA, and TAC in the control group with Alzheimer's disease were significantly higher than those in the healthy control group (P<0.05). After the intervention, AST, ALT, and ALP in the exercise and vitamin C supplement groups were significantly lower than in the non-exercise groups (P=0.001).

Aerobic exercise and vitamin C supplementation are effective in improving liver factors in rats with Alzheimer's disease; however, they have no therapeutic effect on MDA and TAC levels in rats with Alzheimer's.

Most of the various drugs that are used to treat various diseases are metabolized in the liver. The purpose of this study is to investigate the effect of melatonin and selective serotonin reuptake inhibitor drug citalopram on liver tissue ultrastructure and liver enzymes in adult female Trichogaster. For this purpose, 120 pieces of Trichogaster with an average weight of 4.23 ± 0.70 g divided into eight groups of 15, which included the control groups, solvent intact, three groups which received citalopram with a dose of 5, 10 and 20 mg/kg and three treatment groups receiving melatonin with doses of 10, 50, and 100 mg/kg. A dose of 0.02 ml of the drug was injected intramuscularly between the dorsal fin and the lateral line every other day for 10 times, over a period of 20 days. Then, the fish were euthanized and dissected. The results showed that melatonin and citalopram had a significant effect on the level of all liver enzymes compared to the control groups (P<0.05). The highest levels of ALT, AST and ALP were measured after the injection of 20 mg/kg citalopram (P<0.05). In fish treated with the highest concentration of melatonin and all concentrations of citalopram, dissociation between hepatocytes and expansion of sinusoids occurred. Fat vacuoles were formed in high concentrations of melatonin and citalopram. Therefore, melatonin at a concentration of 100 mg/kg and citalopram at a concentration higher than 5 mg/kg have a negative effect on the ultrastructure of liver tissue and liver enzymes.

During heat stress, the animal body requires more antioxidant compounds and activity of antioxidant enzymes. Zinc plays a role in the structure and activity of antioxidant enzymes. One of the ways to supply the zinc requirement, is to use organic zinc supplements, which zinc combined with methionine, and have more intestinal absorption

This study was done to evaluate the effects of different doses of zinc-methionine supplementation on the blood antioxidant status and the expression of interleukin 4 and 6 genes in rats exposed to heat stress.

In a completely random design, 20 female rats were divided into four treatment groups with five replicates. Rats were kept at a temperature of 31±2 °C for 20 hours and at a temperature of 38±2 °C for 4 hours per day (to create heat stress). The rats in the control group were fed standard pellets without additives, and the three experimental groups were fed standard pellets plus 15, 30 and 45 mg zinc-methionine supplement per kilogram of dry matter for 30 days. At the end of the experiment, a blood sample was collected from the inferior vena cava. Total antioxidant capacity, malondialdehyde concentration, antioxidant enzymes, liver enzymes in the serum and the expression of interleukin-4 and interleukin-6 genes were measured.

Serum zinc concentration increased linearly with increasing zinc dose in the diet (P<0.05). The serum activity of two enzymes, alanine aminotransferase and aspartate aminotransferase decreased linearly with increasing zinc-methionine dose in the diet (P<0.01). The highest activity of glutathione reductase and glutathione peroxidase was observed in the group receiving 30 mg/kg, and the lowest activity of these enzymes was observed in the control group. In general, the relative expression of the interleukin-4 gene was increased, and the relative expression of the interleukin-6 gene was decreased (P<0.05). The highest expression of interleukin-4 gene belonged to the group receiving 30 mg, and the highest relative expression of interleukin-6 gene belonged to the control group and the group receiving 15 mg/kg.

The results of this study showed that the dose of up to 30 mg of zinc-methionine per kg of diet used in this study increases the activity of superoxide dismutase enzyme and glutathione peroxidase enzyme activity, decreases the activity of liver enzymes in the serum, increases the expression of the anti-inflammatory gene (Interleukin-4) and decreases the expression of inflammatory gene (Interleukin-6), which indicates the reduction of oxidative stress and the reduction of the effects of heat stress in the body of the rat.

Effective anticonvulsant drugs each selectively suppress the abnormal activity of neurons to some degree. However, their mechanism of action and efficacy differ in different types of epilepsy disorders.

Investigation of histological effects of 4chloro-N (2-(4-methoxyphenil)-4-oxotiazolidin-3-yl)-2-phenoxybenzamid compared to Diazepam as a reference drug on Trichogaster trichopterus ‘s liver which has done at the fish lab of Islamic Azad University.

In this study, 150 fish specimens with an average weight of 2 ± 0.5 gr were bought from Khan-mahi fish farm. This study was performed on 4 treatment groups (1, 3, 5, 7 mg/kg b.w.) and three controls including, control 1 (intact), control 2 (solvent tween 80), reference control (Diazepam 3 mg/kg.b.w). Before dropping fishes into the aquariums, dechlorination of water was performed in 24 hours, and physicochemical factors were measured. Injections were performed every other day for 20 days and all the treatments were anatomized and their livers put into the fixative to check by optical and electron microscope later.

The results showed that the ALT, AST and ALP were changed in controls to treatments. These results showed a significant difference between the control and the treatment groups (P≤0.05) Microscopic images also showed membrane changes, rupture, gaps between sinusoids, and necrosis at a dose of 5 mg /kg body weight and was in a dose-dependent.

Currently, zinc and its compounds are used as a suitable material for the treatment of infection in burns, open wounds and chronic wounds. This investigation, was designed and carried out with the aim the local effect of green zinc nanoparticles on blood biochemical parameters and skin tissue repair during wound healing in laboratory rat.

In this experimental study, 42 male Wistar rats were divided into 7 groups of 6. Then, by creating a 2 cm burn on the back of the rats, treatment was immediately performed with zinc nanoparticles ointment (1%, 4%, 16%) and zinc oxide ointment and pure Vaseline for 21 days. After sampling from the percentage of wound repair in the skin of rats was calculated. Similarly, blood sampling was done from the hearts of rats and serum was used to check biochemical parameters.

The percentage of wound healing in the 4% ointment group and zinc oxide ointment was significantly higher than the control group. In addition, all the concentrations of ointment were safe in terms of their effect on liver enzymes.

Conclution: 

The results of investigation showed that the ointment of 4% zinc nanoparticles was the best treatment group, which accelerated the repair of skin wounds. Based on the results of the present experimental study, probably the ointment produced by the identified green nanoparticles could be suggested as a strong repair agent in skin lesions naturally.

Medicinal plants have a wide range of applications in various fields, especially in the control of microbial infections, but the discussion of their possible toxicity has caused great concern in the use of these substances in various fields of industry and medicine. This study was performed to clarify some of these ambiguities and to investigate the effect of intraperitoneal injection of flaxseed extract on biochemical, hematological, and hepatic factors in rats.

In this experimental study, 15 female spiral rats were randomly divided into 5 groups. The first group was the sham group, the second group was the control group, and the third to fifth groups as experimental groups with concentrations of 200, 400, and 600 mg/ml of flaxseed extract were treated, respectively. The mice were treated for 10 days, then on the eleventh day the mice were anesthetized with ether and blood samples were taken from their hearts. Then biochemical parameters, blood, and lactate dehydrogenase, and plasma levels of liver enzymes were evaluated.

The results of this study did not show much change in biochemical factors except cholesterol and triglycerides which showed a significant decrease in the extract-treated groups. Blood factors did not show significant changes but increased in high concentrations of liver enzymes.

Intraperitoneal injection of flaxseed extract has no effect on blood factors and many biochemical factors in mice, but high concentrations of the extract can affect liver enzymes.

Varicocele is one of the most important causes of infertility in men, which in addition to negatively affecting spermatogenesis, can also affect the endocrine system. The link between varicocele and testosterone production is unclear. The liver is one of the most effective organs in the metabolism of substances and hormones. This study aimed to evaluate serum testosterone levels and their association with liver enzymatic changes. Fifty male Wistar rats were divided into 5 groups, including sham control, varicocele induction, varicocele induction (50 mg/kg curcumin), and varicocele induction (100 mg / kg curcumin). After the treatment period, iron (Fe2 +), testosterone, direct bilirubin, total bilirubin and serum concentrations of ALT, and AST were assessed and liver tissue was isolated and examined. Varicocele caused a significant increase in iron levels (p ≤ 0.05) and a non-significant decrease in testosterone levels (p = 0.242) and total bilirubin (T) (p = 0.639). The treatment resulted in a significant decrease in the levels of iron (p = 0.056) and total bilirubin (p = 0.639), as well as a significant increase in testosterone levels (p < 0.05) compared to the varicocele. While the level of direct bilirubin (p ≥ 0.05) in the varicocele showed a significant increase compared to the sham and control. Using curcumin significantly reduced it compared to the varicocele (p = 0.03). Evaluation of ALT (p = 0.762) and AST (p = 0.367) levels did not show a significant difference among the groups. The levels of iron, testosterone, bilirubin, and liver enzymes are negatively affected by varicocele. Curcumin may lessen the harmful effects of varicocele on biochemical components linked with liver tissue in addition to preventing varicocele damage to testicular tissue. In varicocele rats, greater dosages of curcumin may lower the liver enzyme AST.

Vincristine is an anti-cancer drug which fights the growth and spread of cancer cells in the body. This study aimed to investigate the protective effects of hydroalcoholic extract of chicory plant (Cichorium intybus)on hepatotoxicity of vincristine sulfate in rats. Adult male Wistar rats were used in this study. 56 mice were divided into 7 groups of eight. Treatments were intraperitoneally performed for 15 days. The control group contained healthy mice. Experimental groups 1 and 2, each contains three subgroups with defined concentrations: Experimental group a1 received 15 mg/kg of chicory extract, 0.05 mg/kg of vincristine sulfate and again chicory extract. Experimental group b1 received 20 mg/kg of chicory extract, 0.1 mg/kg of vincristine and chicory extract again. Experimental group c1 received 25 mg/kg of chicory extract; then, vincristine at a dose of 0.2 mg/kg, and then chicory extract again. Experimental group a2: first 0.5 mg/kg vincristine then chicory extract at 15 mg/kg dose, and received Wayne Christian. Experimental b2: First, they received 0.1 mg/kg of vincristine; then, 15 mg/kg of chicory extract and again of vincristine. Experimental c2: first, they received 0.2 mg/kg vincristine, then 15 mg/kg chicory extract, and again vincristine. After performing the above steps by anesthetizing the animals, blood sampling from mice, serum isolation, liver isolation, the measurement of the level of biochemical parameters, and liver enzymes, and their liver tissue were tested. In this study, a significant increase in ALT and AST enzymes was observed in experimental groups 1 compared to the control group, and also a significant decrease was observed in experimental groups 2 compared to experimental groups 1. The results showed that the subcutaneous injection of vincristine had additive effects on the number of liver enzymes in experimental group 1, the chicory extract had high antioxidant properties and significantly reduced liver enzymes.

Diazinon is one of the most widely used organophosphorus insecticides, to control plant pests in agricultural fields and is known to be a harmful environmental pollutant in the world. Therefore, the study aimed to investigate the hepatoprotective effects of alcoholic extract of Althaea officinalis against Diazinon-induced liver damage in adult male hamsters. 42 male hamsters were divided into six groups: The positive control group received distilled water, The negative control group received Diazinon poison, The group receiving the Althaea officinalis extract (300 mg/kg) and the group receiving the Althaea officinalis extract (600 mg/kg) received alcoholic extract of Althaea officinalis at doses of 300 mg/kg and 600 mg/kg of body weight, The group receiving Diazinon and the Althaea officinalis extract (300 mg/kg) and the group receiving Diazinon and the Althaea officinalis extract (600 mg/kg) received Diazinon toxin first and then alcoholic extract of Althaea officinalis at doses of 300 mg/kg and 600 mg/kg of body weight. Daily the hamsters were treated orally for 15 days. At the end of the experiment, blood samples were taken and serum levels of Alanine aminotransferase, Aspartate aminotransferase, Alkaline phosphatase, the whole (total) Bilirubin, the whole (total) protein and serum Albumin were measured. Data were analyzed by one-way ANOVA and Tukey's test using SPSS software. In Diazinon group, there was a significant increase in serum levels of Alanine aminotransferase, Aspartate aminotransferase, Alkaline phosphatase, the whole (total) Bilirubin and a significant decrease in serum (total) protein and Albumin levels compared with the positive control group. Alcoholic extract of Althaea officinalis caused a significant and dose-dependent decrease in the levels of hepatic enzymes and the whole (total) Bilirubin and significant increase in the whole (total) protein and serum Albumin levels. The result of this study showed that Althaea officinalis has a protective and therapeutic effect against Diazinon-induced hepatotoxicity in hamster.

Fatty liver is a common metabolic disorder affecting millions of people all over the world. Due to the side effects of most of the chemical drugs used to treat this disease, this study has been performed aiming to investigate the effect of flaxseed and N. sativa oils on serum levels of liver enzymes and some of the inflammatory factors in in male rats affected by non-alcoholic fatty liver disease (NAFLD). In this experimental study, 40 mature male rats were randomly assigned to 5 groups (8 rats in each group) include the control group (receiving no treatment), fatty liver (treated by fat emulsion), and the experimenta groups under 6-weeks by fat emulsion, and 28-day treatments by 0.75 ml/kg of flaxseed oil, 5 ml/kg of N. sativa oil, and the combined treatmnet of 0.75+ 5 ml/kg of flaxseed and N. sativa oils, respectively. At the end, after blood sampling and separation of the surface serum of aspartate aminotransferase (AST), alanine aminotransferase (ALT), alkaline phosphatase (ALP), BUN (blood urea nitrogen), creatinine, total protein, and interleukin 6 were measured. Data analysis was done by ANOVA and Tukey tests. The results showed that iduction of fatty liver caused significant increase of interleukin-6, total protein, blood urea nitrogen, ALP, ALT, AST enzymes, and creatinine compared to the control group (P˂0.01); while the use of flaxseed and N. Sativa oils alone and their combination caused a significant decrease in the level of the above mentioend (P˂0.01). factors The results showed that N. sativa and flaxseed oils and their combination can decrease the inflammatory serum factors and liver damage caused by fatty liver disorder.

Inroduction & Objective: The use of natural-origin growth stimulants due to the lack of destructive
environmental impacts has been considered in the past years. Hence this study was conducted to evaluate the
effect of lemon verbena, Aloysia triphylla, extract on growth performance, proximate body compositions and
some liver enzymes of rainbow trout juveniles, Oncorhynchus mykiss. Rainbow trout (average weight 25.52 ± 1.31 g) were allocated into 4 groups and
were fed by different levels of plant extract (0, 2.5, 5 and 7 g per kg of diet) spread on commercial diet for 8
weeks. After cultivation, fish was weighted and proximate compositions include moisture, protein, lipid and
ash were analyzed. Also in order to measure liver enzyme like Aspartate aminotransferase (AST), alanine
aminotransferase (ALT) and alkaline phosphatase blood was taken. After feeding trial the data obtained was analyzed. Results showed that fish fed experimental
diets had significant deference (P<0.05) in weight gain, specific growth rates, feed efficiency and feed
conversion ratios compared to control. There was no significant difference among treatments in survival
(P>0.05). There were no significant difference (P>0.05) in moisture, crude protein, crude lipid and ash
content of rainbow trouts fed with diets containing various levels of plant extract. AST, ALT and alkaline
phosphatase did not have significant difference between treatments (P>0.05). Results clearly indicate that the addition of Aloysia triphylla extract up to 7 g per kg of diet is
advisable for rainbow trout because it improved the growth performance and did not have harmful effect on
liver enzymes.

nowadays, one of the problems of human societies is liver diseases and using chemical drugs with their side effects, causing the researchers change their approaches towards new sources of herbal drugs .The aim of this study was to investigate the effect of Satureja bachtiarica and Thymus daenesis Celak the liver damage is caused by injection thioacetamide. 54 male wistar rats were randomly selected and divided into 9 groups of 6 each groups the (first sahed, second of positive control, third of negative control, fourth, fifth, sixth extracts of Satureja bachtiarica with 5, 10 and 20 miligram per kilogram ,seven , eight and nine extract of Thymus daenensis Celak with 5, 10 and 20 mg/kg extract were given by gavage.Thioacetamide first for three week and twice weekly a rats of 1cc to all groups except the control group were injection then gavage for 14 days savory and thyme extract groups were treated with the extract and the positive drug control group treated with 8 mg/kg capsule sibilinin slap for 14 days.then the blood samples were taken and liver of rats. Histopathologic study suggests that liver lesions compared to the control group is related to the negative control group .Aspartate aminotransferase and alanine aminotransferase well as in the study were assessed and showed that extracts of thyme daenensis has a positive effect on liver fibrosis. By studying the findings, it seems that Flavonoid compounds and phenolic in Thymus daenesis Celak and Satureja bachtiarica can decrease the toxic effects induced By thioacetamide In liver tissue of Mice

According to the widespread use of nanoparticles in medicine, the pathological study seems to be necessary. Important properties of nanoparticles are their small size. Accumulation of fat and inflammation of the liver are the beginning stage of liver cirrhosis. We aimed to determine the effect of nano-curcumin on fatty liver disease. Sixty male mice were divided into 6 groups (n=10): control, gavaged with normal food. The second group were fed cholesterol, third group were fed cholesterol and curcumin. Other groups were fed different dose of nano-curcumin. Then, lipid profile and liver enzymes were measured and liver tissues were fixed in formalin buffer, staining with hematoxylin-eosin. Data were analyzed using SPSS. Evaluation of serum cholesterol showed that treatment with curcumin significantly decreased cholesterol, TG, and LDL of plasma level. Histopathological changes of the liver in the group received cholesterol showed vacuoles of fat, in groups which were fed low doses of the nano-curcumin did not show fat vacuoles of fat. Nano-curcumin may be used in the safe doses for treatment of nonalcoholic fatty liver disease.

In this study, the protective effect of Iranian Golpar on the acute hepatotoxicity due to acetaminophen over doses has evaluated. 80 Wistar male rats were randomly divided in to 4 groups (n=5). Control groups used tap water in 14 days following DMSO i.p injection at day 15th. Acetaminophen groups received tap water in 14 days following 500 mg/kg b.w. injection of acetaminophen (i.p) dissolved in DMSO. Treatment groups received Golpar essential oils (100 and 200 mg/kg b.w) in 14 days following acetaminophen injection at day 15th. Then, the concentration of glutathione (GSH), proxidasion lipids (MDA) and the total antioxidant capacity of plasma and the activity of glutathione s-transferase (GST) with biochemical methods were estimated. Indeed, the levels of liver enzymes; alanin Teransferase (ALT), aspartate Teransferase (AST), and alkaline phosphatase ALP of the serum were measured. Hence, the histopathology assessments were performed in the liver. The results of the study showed that the Golpar essential oil could significantly prevent from decreasing of GSH, GST and FRAP and increasing of the liver enzymes and prooxion lipids after severe acetaminophen toxicity. Also, the histopathological findings of the liver tissue was confirmed the above results. Therefore, the Golpar essential oil could remarkably protect the liver tissue against the stress oxidative induced by acetaminophen.

Diabetes mellitus is an interference metabolism syndrome of carbohydrates, fat and proteins which can create as a result of shortage or absence of insulin or decreasing of tissues sensitivity regard to insulin. In this investigation the effect of methanolic extract of hypericum scabrum on the diabet and diabetic inflammation has been studied.as sample of 30 male wistar rats (200±20gr) were divided in to 5 groups. (n=6 in each group). 3 groups of rats gavaged with dose of 50, 80 and 110 mg/kg of methanolic extract of hypericum scabrum and controls remained intact. Check input items include food and water intake, blood sugar, liver enzymes (SGPT, SGOT) and LDL. The streptoztosin-diabetic rats were used. Results were analysed by one way analysis of varianc (ANOVA). The results of this research indicate that using the methanolic extract could effectively prevent of diabetes mellitus in rats. The sample wich received extract with 80 mg/kg dosage of their weight significantly decrease the liver enzymes activity in their bloods, their food and water usage was reduced and their blood sugar was declined. In attention to this topic that herbal drugs, with more research on clinical effects. This plant can be used as an appropriate replace for chemical drugs.

Passiflora caerulea is one of medicinal plants and use in medicinal industry. Passiflora caerulea contain high anti oxidant combinations this combinations pain properties and are useful in curing have anti cancer and anti inflammatory and antiepilepsy, diarrhea, burn, hemorrhoid and in regulating liver enzymes. In this experiential study, 40 wistar male rats, use weighting about 195-200 g each were used in five groups eight including :control without received nothing, sham group received distilled water and 3 experimental groups receiving 150,300,600, mg/kg leaves of passiflora caerulea Hydro-alcohol extract respectively. According to obtained results, ALT, AST and Albumin in experimental group receiving the highest dose of the extract 600 mg/kg, pation in control group, meaningful in level. The Level of ALP, Total Protein, Creatinin and total body weight to comparison by control group not show significant changes and hydro alcoholic extract Passiflora cearulea Author decrease level BUN to experimental groups extraction of receiving. Hydro-alcohol extract of Passiflora caerulea leaves probably has a significant effect on hepatic activity. This effect by anti oxidant property active, mechanisms via like free radical control and peroxides neutralization and prevention of revive glutathione, evacuate and cell membrane stabilization and by stimulating DNA polymerase and increasing rRNA synthesis and finally relief liver cell.