scholarly journals Lead acetate induced toxicities and antitoxic effect of Vitamin E and selenium in mice

2021 ◽  
Vol 19 (1) ◽  
pp. 73-83
Author(s):  
M. S. Jahan ◽  
M. S. Islam ◽  
M. Gautam ◽  
M. E. R. Bhuiyan
Keyword(s):  
Vitamin E ◽  
Lead Acetate ◽  
Hematological Parameters ◽  
Lead Toxicity ◽  
Treated Group ◽  
The Body ◽  
Premature Delivery ◽  
Dependent Manner ◽  
Female Mice ◽  
Dose Dependent

Background: The experiment was conducted to evaluate the effect of different dosages of lead in the hematological parameters of mice and to observe the antitoxic role of Vitamin E and Selenium in induced lead toxicities. Moreover, the toxic effect of lead in the reproduction of female mice was also examined. Methods: A total of 72 (48 male and 24 female) Swiss albino mice were used in the experiment. After adaptation, 42 male mice were selected for hematological studies and divided into seven groups (n=6) where Group A represented healthy control mice and Group B, C, and D were treated with lead acetate at the rate of 0.5mg/kg, 1mg/kg and 2mg/kg respectively. Similarly, three other groups B+, C+, and D+ were treated with lead acetate plus Vitamin E and Selenium at the rate of 2ml per liter drinking water. A total of 24 female mice were divided into four groups (n=6), group E represented control mice and Group F, G, and H were treated with lead acetate at the rate of 0.5mg/kg, 1mg/kg, and 2mg/kg for three weeks followed by matting and treatment was continued for another one week of gestation. Blood sample was analyzed from the hematological study group. Result: The lead treatment caused a dose-dependent decrease in the value of Hb and PCV significantly whereas the value of TEC and TLC were significantly decreased in Group C and D in relation to Control. The value of ESR increased significantly in a dose-dependent manner in Group D in relation to Control whereas MCV and MCH values were significantly decreased than that of control. The value of TEC, Hb, PCV, ESR, and TLC improved in the Lead plus Vitamin E- Selenium treated group as compared to the Lead treated group but, only Group C+ showed significant improvement as compared to Group C. The value of neutrophil and monocyte were significantly decreased were as lymphocyte and eosinophil were significantly increased relative to control. There was a dose-dependent effect of lead in pregnancy of female mice with the highest effect (premature delivery and infant mortality) on high dose treated mice. Conclusion: It can be concluded that lead has a great impact on hematological parameters and has an effect on various systems of the body. Premature birth and abortion are major effects of lead toxicity. Our results suggest that hemolysis of RBC and or impairment of erythropoiesis may be caused by lead toxicity and the hematological values can be restored by the use of Vitamin E plus Selenium.

scholarly journals HEPATOPROTECTIVE ROLE OF CISSUS QUADRANGULARIS ON LEAD ACETATE-INDUCED LIVER INJURY IN FEMALE WISTAR RATS

2017 ◽  
Vol 10 (11) ◽  
pp. 182 ◽  
Author(s):  
Neethu Jayan ◽  
Susmita Das ◽  
Santhosh Kumar R ◽  
Sabina Evan Prince ◽  
Asha Devi
Keyword(s):  
Liver Injury ◽  
Lead Acetate ◽  
Lead Toxicity ◽  
Treated Group ◽  
The Body ◽  
Female Rats ◽  
Histopathological Study ◽  
Cissus Quadrangularis ◽  
Stem Extract

  Objectives: Several heavy metals like lead acetate can accumulate in the body due to exposure to the metal for a prolonged period. One of the possible mechanisms involved with lead toxicity is oxidative stress is for which liver is the target organ. The primary aim of this study was to examine the hepatoprotective role of methanolic stem extract from the herb Cissus quadrangularis on induced lead acetate liver injury in female Wistar rats.Methods: The course of the study was for 14 days. The animals were separated into 5 groups: two being control and negative and the other 3 groups based on the dosage of the methanolic extract of the plant was given. The dosage of the plant extract given was once daily for all days of course study. During the last 7 days, lead acetate was injected in the animals (25 mg/kg of body weight). The sacrifice was done 14 days later and the blood and liver samples were taken, which is then used for different antioxidant enzymatic assays.Results: Significant reduced (p < 0.05) antioxidant levels and increased lipid peroxidation levels were observed in lead acetate treated group which was ameliorated by the action of extract from Cissus quadrangularis fusiformis. Histopathological study also supported the finding.Conclusion: The results of the different antioxidant enzymatic assays supported the hepatoprotective role of methanolic stem extract of the plant Cissus quadrangularis over induced lead acetate injury in wistar female rats.

Amelioration of Carbon Tetrachloride-Induced Liver Injury by Citrus Leaf Extract

2019 ◽  
Vol 17 (4) ◽  
pp. 426-431
Author(s):  
Jin Xuezhu ◽  
Li Jitong ◽  
Nie Leigang ◽  
Xue Junlai
Keyword(s):  
Carbon Tetrachloride ◽  
Leaf Extract ◽  
Hepatic Injury ◽  
The Body ◽  
Dependent Manner ◽  
Weight Changes ◽  
Citrus Leaf ◽  
Dose Dependent ◽  
And Oxidative Stress

The main purpose of this study is to investigate the role of citrus leaf extract in carbon tetrachloride-induced hepatic injury and its potential molecular mechanism. Carbon tetrachloride was used to construct hepatic injury animal model. To this end, rats were randomly divided into 4 groups: control, carbon tetrachloride-treated, and two carbon tetrachloride + citrus leaf extract-treated groups. The results show that citrus leaf extract treatment significantly reversed the effects of carbon tetrachloride on the body weight changes and liver index. Besides, treatment with citrus leaf extract also reduced the levels of serum liver enzymes and oxidative stress in a dose-dependent manner. H&E staining and western blotting suggested that citrus leaf extract could repair liver histological damage by regulating AMPK and Nrf-2.

scholarly journals Cissus Quadrangularis enhances UCP1 mRNA, indicative of white adipocyte browning and decreases central obesity in humans in a randomized trial

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Saimai Chatree ◽  
Chantacha Sitticharoon ◽  
Pailin Maikaew ◽  
Kitchaya Pongwattanapakin ◽  
Issarawan Keadkraichaiwat ◽  
...  
Keyword(s):  
Treated Group ◽  
Dependent Manner ◽  
Hip Circumference ◽  
White Adipocyte ◽  
Ppar Γ ◽  
White Adipocytes ◽  
Cissus Quadrangularis ◽  
Baseline Values ◽  
Dose Dependent ◽  
Vehicle Treated Group

AbstractObesity is associated with the growth and expansion of adipocytes which could be decreased via several mechanisms. Cissus Quadrangularis (CQ) extract has been shown to reduce obesity in humans; however, its effect on human white adipocytes (hWA) has not been elucidated. This study aimed to investigate the effects of CQ on obesity, lipolysis, and browning of hWA. CQ treatment in obese humans significantly decreased waist circumference at week 4 and week 8 when compared with the baseline values (p < 0.05 all) and significantly decreased hip circumference at week 8 when compared with the baseline and week 4 values (p < 0.05 all). Serum leptin levels of the CQ-treated group were significantly higher at week 8 compared to baseline levels (p < 0.05). In hWA, glycerol release was reduced in the CQ-treated group when compared with the vehicle-treated group. In the browning experiment, pioglitazone, the PPAR-γ agonist, increased UCP1 mRNA when compared to vehicle (p < 0.01). Interestingly, 10, 100, and 1000 ng/ml CQ extract treatment on hWA significantly enhanced UCP1 expression in a dose-dependent manner when compared to pioglitazone treatment (p < 0.001 all). In conclusion, CQ decreased waist and hip circumferences in obese humans and enhanced UCP1 mRNA in hWA suggestive of its action via browning of hWA.

DOSE-DEPENDENT CHARACTER OF DISTURBANCE OF HEMATOPOIETIC AND IMMUNE SYSTEMS FUNCTION, PRODUCTION OF SOME HORMONES IN EXPERIMENTAL URANIUM ACETATE DIHYDRATE EXPOSURE

2021 ◽  
Vol 1 (1) ◽  
pp. 14-19
Author(s):  
Е. G. Trapeznikova ◽  
V. В. Popov ◽  
A. S. Radilov ◽  
V. V. Shilov
Keyword(s):  
Hematological Parameters ◽  
Chronic Administration ◽  
Absolute Number ◽  
Uranyl Acetate ◽  
The Body ◽  
Acetate Dihydrate ◽  
Functional Changes ◽  
Cd8 Cells ◽  
Tnf Α ◽  
Dose Dependent

The paper presents the results of an experimental study of the dose-dependent nature of functional changes in the body systems under chronic administration of uranyl acetate dihydrate in doses of 0.5 and 5.0 mg/kg per element for 18 weeks. The study was performed on 45 male outbred rats. It has been shown that uranyl acetate dihydrate in a dose of 0.5 mg/kg had no significant effect on hematological parameters. At the same time, activation of bactericidal activity of neutrophils, a decrease in the immunoregulatory index, and an increase in the blood concentration of tumor necrosis factor (TNF-α) have been revealed. The toxicant administered to rats in a dose of 5 mg/kg led to a decrease in the absolute number of erythrocytes, hemoglobin, hematocrit, platelets, the release of myelocytes into the blood, basophilia, monocytosis, the appearance of leukolysis cells and plasmatization of lymphocytes. On the part of the immune system, an increase in the biocidal capacity of neutrophilic granulocytes, TNF-α production, an increase in the number of CD8+ cells, and a reduction in the CD4+/CD8+ ratio have been found. Uranyl acetate dihydrate had a dose-dependent effect only on the number of cytotoxic T-lymphocytes, T-cells with the CD4+CD8+ phenotype, on the immunoregulatory index, and on the level of TNF-α. Hyperglycemia and glucosuria were also dose-dependent. An increase in glucose in the blood and urine indicated a violation of carbohydrate metabolism and kidney function. There was a decrease in the concentration of thyroxine, testosterone and an increase in the level of insulin. Uranyl acetate dihydrate led to the development of insulin resistance. The level of hormones did not depend on the dose of the toxicant administered to the animals.

scholarly journals The effect of Ricinus communis seeds extract on reproductive activity and blood values of male rabbits

2019 ◽  
Vol 12 (1) ◽  
pp. 97-106
Author(s):  
AL-Khafaji Nazar
Keyword(s):  
Estrogenic Activity ◽  
Ricinus Communis ◽  
Hematological Parameters ◽  
Abdominal Cavity ◽  
Hemoglobin Concentration ◽  
Reproductive Activity ◽  
Treated Group ◽  
Blood Parameters ◽  
The Body ◽  
Tropical Regions

Ricinus communis L. of Euphorbiaceae family is a widespread plant in tropical regions. It is used in traditional medicines as an anti- fertility agent in India and different parts of the world. The ether soluble portion of the methanol extract of R. communis var minor possesses anti-implantation, anti - conceptive and estrogenic activity in rats and mice when administered subcutaneously.The study was conducted on 10 local breed male rabbits, 1-2 years old, of 1-2 kg body weight. The animals were divided into two groups, control non – treated group and treated group in which animals were treated with single daily dose of 50 mg /kg b. wt. P.O. of decorticated and defatted castor seeds (DDCS) for 14 days. 28th day post treatment, animals were anesthetized by diethyl ether, sacrificed, abdominal cavity was open. The sexual organ (testes, epididymis, prostate and seminal vesical) weighed. In addition to take a biopsy from each one for histopathological changes. The study also included clinical and hematological parameters, in addition to sperm counts and the changes in sperm morphology.Body weight, body temperature increased significantly in treated males. While in non- treated group there were no significant changes. Respiratory rates and heart rate were none significantly changed in treated and non- treated males.Bleeding time none significantly increased in treated males, but increased significantly in none treated males. Clotting times decreased none significantly in treated and non- treated males. The blood parameters including, total erythrocytes count, hemoglobin concentration, PCV% , MCV, MCH, MCHC, total leucocyte and differential leucocyte counts were either increased or decreased none significantly in both groups. The results revealed that the effects of exposure to extract of ricin for 14 days on reproductive efficiency of rabbits, exhibited Significant decrease in weights of testes, epididymis, tails, heads of epididymis, seminal vesicles and prostate in treated males in comparison with those of non- treated males. While the body of epididymis did not show a significant changes.Significant decrease in live sperm numbers, number of sperms in epididymal head, in addition to deformities in high numbers of sperm, including enlarged or small sperms. breaks head, and its detachment, presence of two heads in one sperm, bifurcation of tail and its breaking, sperm coiling in samples from treated males in comparison with those from non-treated males.Histological changes were hyperplasia of lining epithelial cells and vacuolar degenerative changes, loss of spermatogenesis, and spermatocytes necrosis in those from treated males.

scholarly journals Evaluation of T-3811ME (BMS-284756), a New Des-F(6)-Quinolone, for Treatment of Meningitis Caused by Penicillin-Resistant Streptococcus pneumoniae in Rabbits

2002 ◽  
Vol 46 (6) ◽  
pp. 1760-1765 ◽  
Author(s):  
Masahiro Takahata ◽  
Hiroshi Yamada ◽  
Teiichi Morita ◽  
Shinichi Furubou ◽  
Shinzaburo Minami ◽  
...  
Keyword(s):  
Streptococcus Pneumoniae ◽  
Viable Cell ◽  
Treated Group ◽  
Dependent Manner ◽  
Free Base ◽  
Time Curve ◽  
Gram Positive Bacteria ◽  
Cell Counts ◽  
Concentration Time ◽  
Dose Dependent

ABSTRACT T-3811ME (BMS-284756) is a new des-F(6)-quinolone with high levels of activity against gram-positive bacteria, including penicillin-resistant Streptococcus pneumoniae (PRSP) strains. T-3811, the free base of T-3811ME, exhibited potent activity against 28 clinical strains of PRSP isolated clinically (MIC at which 90% of the isolates tested are inhibited, 0.0625 μg/ml). After the intravenous dosing of T-3811ME (20 mg/kg of body weight as T-3811) in rabbits with meningitis caused by PRSP, the area under the concentration-time curve (AUC) of T-3811 in cerebrospinal fluid (CSF) was 5.79 μg · h/ml and was 4.5-fold higher than that of T-3811in the CSF of rabbits without meningitis. In addition, the AUC/MIC for T-3811ME (20 mg/kg as T-3811) in CSF was 185, which was 4.3-fold higher than that for ceftriaxone (administered intravenously at 100 mg/kg). After the administration of any dose of T-3811ME (5, 10, and 20 mg/kg as T-3811), the viable cell counts in CSF decreased in a dose-dependent manner. In particular, after dosing of 20 mg/kg (as T-3811), the viable cell counts in CSF were significantly less than those in the nontreated group (P < 0.01). By histopathological evaluation, 6 h after the administration of T-3811ME (20 mg/kg as T-3811), the thickening of the cerebral meninx and the infiltration of neutrophils into the cerebral meninx were less severe in the treated group than in the nontreated group. T-3811ME (BMS-284756) may be expected to be evaluated for the management of meningitis caused by highly penicillin-resistant pneumococci.

scholarly journals The induction of guerin's carcinoma cytochrome P450 hydroxylase activity by retinoids

2012 ◽  
Vol 58 (5) ◽  
pp. 539-548
Author(s):  
I.A. Shmarakov ◽  
N.V. Katan
Keyword(s):  
Cytochrome P450 ◽  
Vitamin A ◽  
Tumor Growth ◽  
The Body ◽  
Dependent Manner ◽  
Liposomal Form ◽  
Cytochrome P450 Hydroxylase ◽  
All Trans Retinoic Acid ◽  
Guerin’S Carcinoma ◽  
Dose Dependent

The interconnection of tumor growth process and the provision of the body with vitamin A was studied. The replenishment of vitamin A stores of vitamin-deficient tumor bearing animals modulated Guerin's carcinoma growth rate in a dose dependent manner (r=0,83). The morphological parameters of tumor growth at different provision with vitamin A positively correlated with hydroxylase (r=0,81) and demethylase (r=0,49) activities of the Guerin's carcinoma cytochrome P450 system. The induction of hydroxylase and demethylase activities of cytochrome P450 in Guerin's carcinoma microsomal fraction, observed either under conditions of overdose supplementation, or selective liposomal form of all-trans-retinoic acid, suggests the stimulatory effect of retinoids on tumor growth.

scholarly journals Cellular Damage After Prolonged Low-Dose Exposure of Neonicotinoid in Rats

2021 ◽  
Author(s):  
Rahat Naseer ◽  
Affan Tariq ◽  
Munazza Raza Mirza ◽  
Muhammad Rashid ◽  
Syed Qasim Raza ◽  
...  
Keyword(s):  
Vitamin E ◽  
Low Dose ◽  
Prolonged Exposure ◽  
Cell Damage ◽  
Hematological Parameters ◽  
Treated Group ◽  
Alpha Tocopherol ◽  
Cellular Damage ◽  
Control Group ◽  
New Class

Abstract Background; Dinotefuran is a new class of neonicotinoids claimed to be harmless to mammals and humans. This claim was daunted by the documented effect of dinotefuran on honeybees and further studies were required. Aim: The study was designed to assess the capaciousness of damage caused by prolonged exposure of dinotefuran in mammals and probable strategy to neutralize its effect. Methodology: Ninety-day trial using Wistar rats (n=45) was conducted while dividing them into three groups: untreated control group, insecticide (dinotefuran) treated group, and dinotefuran treated and vitamin E supplemented group. Dinotefuran was administrated orally (LD25). Vitamin E (alpha-tocopherol) supplementation was given in water ad libitum. Blood sampling was done twice a month, and hematological and biochemical data were recorded. After expiry of trial period, the experimental rats were anesthetized and sacrificed. Organs (kidneys, liver, and heart) were isolated from each groups, weighed, and stored at approximately -20°C till further processing, analysis and histopathology were performed. Results: All the hematological parameters were affected significantly. Histopathology of tissues showed clear necrosis in all the tissues except kidneys. All the biomarkers of oxidative stress and comet assay demonstrated significant cell damage. All the parameters showed improvement after vitamin E supplementation but non-significantly. Significance: These findings were suggestive that even low dose persistent exposure can lead to mutagenicity and carcinogenicity in mammals and other non-target species hence revised policy guidelines and more intelligent use of these chemicals is required.

scholarly journals ASSESSMENT OF STRESS END POINTS IN VIGNA RADIATA SEEDLINGS EXPOSED TO PRE-ACTIVATED TIO2 AND TISIO4 NANOPARTICLES UNDER SOLAR RADIATION

2016 ◽  
Vol 8 (10) ◽  
pp. 198 ◽  
Author(s):  
Shweta Kaur ◽  
Anurag Maurya
Keyword(s):  
Vigna Radiata ◽  
Treated Group ◽  
Dependent Manner ◽  
End Points ◽  
Treatment Groups ◽  
Stress Biomarkers ◽  
Bulk Powder ◽  
Mechanism Of Toxicity ◽  
Dose Dependent ◽  
Assessment Of Stress

<p class="03-Address"><strong>Objective: </strong>The present study was aimed to evaluate the phototoxic effects of sunlight pre-irradiated/nonirradiated TiO<sub>2</sub>, TiSiO<sub>4</sub> nanoparticles and TiO<sub>2 </sub>bulk powder to Vigna radiata seedlings.</p><p class="03-Address"><strong>Methods</strong><strong>: </strong>Different concentrations (0.05, 0.2, 0.5 and 1.0 g/l) of nano/bulk particles were applied to the germinated seedlings for 24 h and various biochemical end points were assessed. The end points were superoxide dismutase activity, catalase activity, malondialdehyde (MDA) and proline content.</p><p class="03-Address"><strong>Results: </strong>The irradiated nano TiO<sub>2 </sub>was more phototoxic to the seedlings as compared to both the non-irradiated nano TiO<sub>2 </sub>as well as the irradiated/non-irradiated TiO<sub>2</sub> bulk powder, as revealed by the increased level of antioxidant enzymes activity in irradiated TiO<sub>2</sub> nanoparticles treated group. Toxicity in nano TiO<sub>2</sub> group was more confined to the lowest concentration (0.05 g/l). Proline, a well-recognized stress biomarker, was found to increase in all the irradiated as well as the non-irradiated groups in a dose dependent manner (0.20 to 1.0 g/l), offering a different mechanism of toxicity from that of antioxidative enzymes. TiSiO<sub>4</sub> nanoparticles were not found to be phototoxic significantly under either exposure conditions.</p><p class="03-Address"><strong>Conclusion: </strong>The seedlings of the three treatment groups responded variably to the stress biomarkers, indicating that the mode of action of the nanoparticles to the plant was different from that of the bulk particles in irradiated and non-irradiated conditions and was governed by more than a single factor.</p>

scholarly journals Antimalarial Activity of Kaempferol and Its Combination with Chloroquine in Plasmodium berghei Infection in Mice

2018 ◽  
Vol 2018 ◽  
pp. 1-7 ◽  
Author(s):  
Voravuth Somsak ◽  
Awatsada Damkaew ◽  
Pinanong Onrak
Keyword(s):  
Plasmodium Berghei ◽  
Chronic Toxicity ◽  
Antimalarial Activity ◽  
Chronic Administration ◽  
Treated Group ◽  
Effective Vaccine ◽  
Dependent Manner ◽  
Standard Procedures ◽  
Dose Dependent

The search for new antimalarial drugs has become an urgent requirement due to resistance to the available drugs and the lack of an effective vaccine. In this respect, the present study aimed to evaluate the antimalarial activity of kaempferol against Plasmodium berghei infection in mice as an in vivo model. Chronic toxicity and antimalarial activities of kaempferol alone and in combination with chloroquine were investigated in P. berghei ANKA infected ICR mice using standard procedures. The results showed that chronic administration of 2,000 mg/kg of kaempferol resulted in no overt signs of toxicity as well as no hepatotoxicity, nephrotoxicity, or hematotoxicity. Interestingly, kaempferol exerted significant (P < 0.05) chemosuppressive, chemoprophylactic, and curative activities in a dose-dependent manner. The highest antimalarial activity was found at a dose of 20 mg/kg which resulted in a significantly (P < 0.05) prolonged survival of infected mice. Moreover, combination treatment of chloroquine and kaempferol also presented significant (P < 0.05) antimalarial effects, although the effects were not significantly different from the chloroquine treated group. From the results of the present study, it can be concluded that kaempferol possesses acceptable antimalarial activities. However, further investigation should be undertaken on the mechanism responsible for the observed antimalarial activity.

Sign in / Sign up

Export Citation Format

Share Document