scholarly journals Effects of cadmium and monensin on renal and cardiac functions of mice subjected to subacute cadmium intoxication

2014 ◽  
Vol 7 (2) ◽  
pp. 111-115 ◽  
Author(s):  
Juliana Ivanova ◽  
Yordanka Gluhcheva ◽  
Sonja Arpadjan ◽  
Mariana Mitewa

ABSTRACT Cadmium (Cd) is a well-known nephrotoxic agent. Cd-induced renal dysfunction has been considered as one of the causes leading to the development of hypertension. The correlation between Cd concentration in blood and urine and cardiovascular diseases has been discussed in many epidemiological studies. A therapy with chelating agents is utilized for the treatment of toxic metal intoxication. Herein we present novel information indicating that monensin (applied as tetraethylammonium salt) is a promising chelating agent for the treatment of Cd-induced renal and cardiac dysfunction. The study was performed using the ICR mouse model. Adult ICR male mice were divided into three groups with six animals in each group: control (received distilled water and food ad libitum for 28 days); Cd-intoxicated (treated orally with 20 mg/kg b.w. Cd(II) acetate from day 1 to day 14 of the experimental protocol), and monensin treated group (intoxicated with Cd(II) acetate as described for the Cd-intoxicated group followed by oral treatment with 16 mg/kg b.w. tetraethylammonium salt of monensic acid for 2 weeks). Cd intoxication of the animals resulted in an increase of the organ weight/body weight indexes. Cd elevated significantly creatinine and glucose level in serum. Monensin treatment improved the organ weight/body weight ratios. The therapy of the Cd-intoxicated animals with monensin ameliorated the creatinine and glucose level in serum and decreased the concentration of the toxic metal ions in the heart and kidneys by 54 % and 64 %, respectively

2020 ◽  
Vol 11 (SPL4) ◽  
pp. 2704-2709
Author(s):  
Ranjana Kohli ◽  
Madan L Kaushik ◽  
Jai Parkash Kadian ◽  
Bhupendra Chauhan

The anti-diabetic effect of ethanolic and aqueous extracts of Imperata cylindrical  rhizomes was investigated in alloxan-induced diabeties in rats. Diabetes was induced by a single 150 mg/kg intraperitoneal dose of alloxan. Rats were divided into five groups with six rats in each group i.e. the normal control group, diabetic control group, standard group (glibenclamide, 10mg/kg, p.o.), Test-I group (200 mg/kg ethanolic extract) and Test-II group (200 mg/kg aqueous extract). The above concerned groups were inoculated on 21st day. On the last day of the experiment, fasted rats were killed by cervical dislocation. The body weight was measured at the initial day and final day. The blood samples were collected for estimation of glucose. The loss of body weight in control group, but recovery was observed in drug treated group. The serum glucose level was significant increased in diabetic rats. However, significant improvement was observed in treated group. The biochemical parameters such as HDL and proteins level were decreased in the control group but maintained in drug treated group. LDL, cholesterol, triglyceride creatinine and urea were significant increase in control group however, reduced level in drug treated group. The present study concluded that ethanolic and aqueous extracts of I. cylindrical  rhizome showed an appreciable effect in reducing the hyperglycemia and the complications associated with diabetes. However, aqueous extract is found more significant in decreasing blood glucose level in comparison to the ethanolic extract. The study results justify the traditional use of the plant as anti-diabetic.


2016 ◽  
Vol 2 (3) ◽  
pp. 402-408
Author(s):  
Ambiara ◽  
Fahima Binthe Aziz ◽  
Md Mahmudul Hasan ◽  
Md Shajedur Rahman ◽  
Misrat Masuma Parvez ◽  
...  

The present study was undertaken to investigate the antidiabetic effect of the Bitter melon and Garlic on Alloxan induced diabetes in experimental rabbits. At 2 to 3 months of age, rabbits were assigned into five groups (A, B, C, D and E) and each group was remained 4 rabbits. Group A was kept for control, Group B was treated with Alloxanintramuscullarly at a dose of 75mg /kg body weight, Group C was treated with bitter melon 250gm/kg body weight orally, Group D was treated with garlic 750mg/kg body weight orally, Group E treated with combined at previous dose. After acclimatization, diabetes was induced in four groups of rabbits (B, C, D and E) by administering Alloxan injection in a dose of 75mg/kg body weight (b.wt.) intramuscularlly. There was significant decreased in blood glucose level in all treated group C, D, E compared to the B group and lowest glucose was recorded in E group when treated with combined medicinal herbs and body weight was increased in all treated group C, D, E compared to the B group and highest was recorded in Dgroup while treated with those.% of PCV level and Hb gm/dl concentration was the highest in group E which was treated with both garlic and bitter melon compare to the A group. ESR was highest in group B treated with Alloxan and lowest in group E. The present study reveals that combined treatment increases body weight and decreases glucose level without affecting health of rabbits.Asian J. Med. Biol. Res. September 2016, 2(3): 402-408


Author(s):  
Piyasi Bhattacharjee ◽  

The present study conducted to investigate the haematological changes and changes of blood glucose level in male albino rat due to cold stress. In this experiment normal 12:12 light dark phases were maintained for all the groups. Control group was kept at normal room temperature (22 ± 1). A (4°C), B in (0°C), C (4°C and 0.30 mg alprazolam / kg body weight /animal), D (0°C and 0.30 mg alprazolam/ kg body weight/ animal. E2 group was treated with (4°C and 1000 mg/kg body weight methanolic extract of Withania somnifera root extract /animal). F2 group was treated with (0°C and 1000 mg/kg body weight methanolic root extract of Withania somnifera / animal). The blood glucose level was significantly increased in stressed rats compared to the control animals. The results were also consistent with the exposure to the stress and chronic restraint stress. Action of Alprazolam over cold stress treated group significantly reduced the blood glucose level. Whereas methanolic root extract of Withania somnifera in low and high doses also showed significant effects to the control anxiety like effects on blood glucose level. Alprazolam + different stress treated groups in different experiment at conditions show significant changes in its haematological parameters in comparison to the stress treated group. Whereas herbal medicine (i.e., methanolic root extract of Withania somnifera) when applied to different stress treated group showed more significant result, compared to the Alprazolam+ different stress treated groups. The positive safe anti stress effects of the herbal plant medicine prove that the tribal medicines have the potentiality to act effectively and can be used as safe medicine for antistress purposes.


Author(s):  
H.F. Gomaa ◽  
Fatimah A. JAl Homaid ◽  
Ali Ismaiel Ali Abdel Rhaim

Lead is a toxic metal that induces a wide range of physiological and histological changes inhuman and animals. Oxidative damage has been the possible mechanism involved in lead toxicity. The current study was carried out to evaluate the antioxidant activities of Accacia senegel extract against leadacetate-induced hepatic injury in rats. Four groups of rats were used in this study, Control, Lead acetate(8 mg/kg body weight intraperitoneally), Accacia senegel(7.5g/kg body weight /day orally) and Accacia senegel (7.5g/kg body weight /day orally)followed by lead acetate (8 mg/kg body weight intraperitoneally) respectively.All groups received the oral treatment by stomach tube once daily for 4 weeks. Lead intoxication resulted in a significant increase inserum alanine transase (ALT), aspartate transaminase (AST) ,alkaline phosphatase (ALP)activities,serum total cholesterol ,and triglycerides liver tumor necrosis factor-a (TNF-a), caspase-3, malondialdehyde (MDA), nitric oxide (NO) levels and a significantdecline of serum total proteins, liver reduced glutathione (GSH) level and catalase. The hepatocytes showed degeneration with vacuolated cytoplasm and fibrosis. The administration ofAccacia senegel extractshowed a slight improving in the activities of Catalase, a slight decreasein AST, ALP activities, NO, Triglycerides but resulted in more increase in the levels of Total proteins, MDA, TNF-a and activity of Caspase-3 while did not induce any protection against elevated levels of ALT and Total cholesterol and against damage in hepatocytes including fibrosis and apoptosis.


2017 ◽  
Vol 10 (3) ◽  
pp. 107-113 ◽  
Author(s):  
Juliana Ivanova ◽  
Emilia Petrova ◽  
Kalina Kamenova ◽  
Yordanka Gluhcheva

AbstractCadmium (Cd) is a risk factor for neurodegenerative diseases. The purpose of this study was to compare the effects ofmeso-2,3-dimercaptosuccinic acid (DMSA) and the polyether ionophorous antibiotics monensin and salinomycin on Cd-induced neurodegenerative alterations in mice. The results show that subacute intoxication of mice with Cd (II) acetate (20 mg/kg body weight (BW) for 14 days) caused a significant accumulation of cadmium (Cd) in the brain. Treatment of Cd-exposed mice with DMSA (20 mg/kg BW for 14 days) significantly increased the Cd concentration in the brains compared to those of the Cd-treated group. However, administration of monensin (20 mg/kg BW for 14 days) or salinomycin (20 mg/kg BW for 14 days) significantly reduced the Cd concentration in the brains of Cd-treated mice compared to the toxic control group. Histopathological analysis of brain tissues from the Cd-treated mice revealed that Cd induced neuronal necrosis, characterized by many shrunken, darkly stained pyknotic neurons with prominent perineuronal spaces. Whereas monensin and salinomycin significantly reduced the adverse effects of Cd on brain morphology of Cd-treated mice, DMSA did not. Monensin slightly increased the copper and iron endogenous levels in the brains of Cd-exposed mice compared to those of the untreated mice. Salinomycin did not affect the concentrations of biometal ions in the brain of Cd-exposed mice compared to untreated controls. The results demonstrated salinomycin to be a better potential chelating agent for treatment of Cd-induced brain injury compared to DMSA and monensin.


2006 ◽  
Vol 76 (1) ◽  
pp. 28-33 ◽  
Author(s):  
Yukari Egashira ◽  
Shin Nagaki ◽  
Hiroo Sanada

We investigated the change of tryptophan-niacin metabolism in rats with puromycin aminonucleoside PAN-induced nephrosis, the mechanisms responsible for their change of urinary excretion of nicotinamide and its metabolites, and the role of the kidney in tryptophan-niacin conversion. PAN-treated rats were intraperitoneally injected once with a 1.0% (w/v) solution of PAN at a dose of 100 mg/kg body weight. The collection of 24-hour urine was conducted 8 days after PAN injection. Daily urinary excretion of nicotinamide and its metabolites, liver and blood NAD, and key enzyme activities of tryptophan-niacin metabolism were determined. In PAN-treated rats, the sum of urinary excretion of nicotinamide and its metabolites was significantly lower compared with controls. The kidneyα-amino-β-carboxymuconate-ε-semialdehyde decarboxylase (ACMSD) activity in the PAN-treated group was significantly decreased by 50%, compared with the control group. Although kidney ACMSD activity was reduced, the conversion of tryptophan to niacin tended to be lower in the PAN-treated rats. A decrease in urinary excretion of niacin and the conversion of tryptophan to niacin in nephrotic rats may contribute to a low level of blood tryptophan. The role of kidney ACMSD activity may be minimal concerning tryptophan-niacin conversion under this experimental condition.


Molecules ◽  
2021 ◽  
Vol 26 (2) ◽  
pp. 331
Author(s):  
Jung-Yun Lee ◽  
Tae Yang Kim ◽  
Hanna Kang ◽  
Jungbae Oh ◽  
Joo Woong Park ◽  
...  

Excess body weight is a major risk factor for type 2 diabetes (T2D) and associated metabolic complications, and weight loss has been shown to improve glycemic control and decrease morbidity and mortality in T2D patients. Weight-loss strategies using dietary interventions produce a significant decrease in diabetes-related metabolic disturbance. We have previously reported that the supplementation of low molecular chitosan oligosaccharide (GO2KA1) significantly inhibited blood glucose levels in both animals and humans. However, the effect of GO2KA1 on obesity still remains unclear. The aim of the study was to evaluate the anti-obesity effect of GO2KA1 on lipid accumulation and adipogenic gene expression using 3T3-L1 adipocytes in vitro and plasma lipid profiles using a Sprague-Dawley (SD) rat model. Murine 3T3-L1 preadipocytes were stimulated to differentiate under the adipogenic stimulation in the presence and absence of varying concentrations of GO2KA1. Adipocyte differentiation was confirmed by Oil Red O staining of lipids and the expression of adipogenic gene expression. Compared to control group, the cells treated with GO2KA1 significantly decreased in intracellular lipid accumulation with concomitant decreases in the expression of key transcription factors, peroxisome proliferator-activated receptor gamma (PPARγ) and CCAAT/enhancer-binding protein alpha (CEBP/α). Consistently, the mRNA expression of downstream adipogenic target genes such as fatty acid binding protein 4 (FABP4), fatty acid synthase (FAS), were significantly lower in the GO2KA1-treated group than in the control group. In vivo, male SD rats were fed a high fat diet (HFD) for 6 weeks to induced obesity, followed by oral administration of GO2KA1 at 0.1 g/kg/body weight or vehicle control in HFD. We assessed body weight, food intake, plasma lipids, levels of alanine aminotransferase (ALT) and aspartate aminotransferase (AST) for liver function, and serum level of adiponectin, a marker for obesity-mediated metabolic syndrome. Compared to control group GO2KA1 significantly suppressed body weight gain (185.8 ± 8.8 g vs. 211.6 ± 20.1 g, p < 0.05) with no significant difference in food intake. The serum total cholesterol, triglyceride, and low-density lipoprotein (LDL) levels were significantly lower in the GO2KA1-treated group than in the control group, whereas the high-density lipoprotein (HDL) level was higher in the GO2KA1 group. The GO2KA1-treated group also showed a significant reduction in ALT and AST levels compared to the control. Moreover, serum adiponectin levels were significantly 1.5-folder higher than the control group. These in vivo and in vitro findings suggest that dietary supplementation of GO2KA1 may prevent diet-induced weight gain and the anti-obesity effect is mediated in part by inhibiting adipogenesis and increasing adiponectin level.


2021 ◽  
Author(s):  
Yongchun Li ◽  
Hui Zhang ◽  
Shanshan Chen ◽  
Liutao Zhao ◽  
Jie Wu ◽  
...  

Abstract Qing Hao Gan Cao (QHGC), a Chinese medicinal formula containing Artemisia annua and Glycyrrhizae Radix et Rhizoma, has been used to treat sunstroke and as an antiviral agent for more than 800 years. It has not previously been subject to a toxicological safety evaluation in acute and subacute (28 days) studies. Therefore, the acute and subacute toxicity of an aqueous extract of QHGC were evaluated in vivo. For the QHGC preparation, the botanical raw materials were crushed into pieces and mixed in the ratio of 10:1 in distilled water for 12 h, then boiling three times for 2 h each time. The three decoctions were mixed and filtered, then spray-dried with hot air at 160°C for 30 min, and stored at room temperature. For the acute toxicity test, 72.0 g/kg of QHGC extract was administered by gavage to male and female mice. Body weight, general observations, and autopsy results were recorded. No mortality or toxicity signs were observed during the studies. For the subacute toxicity test, 4.0, 8.0, or 16.0 g/kg/day of QHGC extract was administered to rats for 28 days. General observations and mortality, body weight, biochemical and hematological parameters, organ weight, and pathological morphology were analyzed. The acute and subacute toxicity studies did not show significant changes in body weight, general observations, hematology and biochemical parameters, organ weight, and liver, spleen, stomach, duodenum, testis, ovary, lung, heart, and kidney histopathological analyses. The consumption of QHGC aqueous extract can be considered safe within the conditions of this study.


2012 ◽  
Vol 2012 ◽  
pp. 1-6 ◽  
Author(s):  
Varsha Ghadyale ◽  
Shrihari Takalikar ◽  
Vivek Haldavnekar ◽  
Akalpita Arvindekar

Inhibition of intestinal alpha glucosidase plays a major role in preventing rise in postprandial glucose level in diabetics.Cymbopogon martinii(CM) (family Poaceae) is used in traditional Indian medicine in treatment of diabetes mellitus. The alpha glucosidase inhibitory action of the plant is studied. The active component was separated using hot water extraction of the whole plant powder, differential solvent extraction, and silica gel column chromatography. The 30 : 70 toluene : ethyl acetate fraction showed optimum activity. The silica gel chromatography fraction demonstrated 98, 98, and 68% inhibition for starch, maltose, and sucrose, respectively, at 5 mg/kg body weight of rats. Intestinal absorption studies using noneverted intestinal sacs, as well as in vivo studies in streptozotocin-induced diabetic rats using oral glucose tolerance with maltose and sucrose load, revealed better inhibition of alpha glucosidase as compared to acarbose. Kinetic studies using Lineweaver Burk plot showed mixed to noncompetitive type of inhibition by CM. In vivo studies with maltose load of 2 mg and 3 mg/gm body weight showed a noncompetitive pattern of inhibition at 5 mg/kg body weight of CM as against 60 mg/kg body weight of acarbose. Thus CM is more effective alpha glucosidase inhibitor and at lower concentration than acarbose.


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