The Protective Efficacy of Ethanolic Leaves Extract of Citronella Gras (Cymbopogon nardus) on Glucose Metabolism Alteration Induced By Mercury in Rats

2017 ◽  
Vol 9 (03) ◽  
Author(s):  
Fransisca Diana Alexandra ◽  
Dian Mutiasari ◽  
Trilianty Lestarisa ◽  
Eko Suhartono
Keyword(s):  
Glucose Metabolism ◽  
Protective Effect ◽  
Plant Extract ◽  
Protective Efficacy ◽  
Liver Weight ◽  
Liver Glycogen ◽  
Liver Cells ◽  
Glycogen Level ◽  
Group I ◽  
Citronella Grass

The present study was undertaken to investigate the protective effect of ethanolic citronella grass (C. nardus) leaves extract against mercury (Hg) induced glucose metabolism alteration in rats. Four groups of rats were selected, with 6 rats for each group. Animals of group I was received a 1 ppm of Hg only. Animals of groups II, III, and IV received a combination of 1 ppm Hg and plant extract in different dose (1650, 2520, and 3360 mg/ml). The experiment lasted for 4 weeks. The various parameters studied included liver weight, liver glucose, glycogen, and malondialdehyde (MDA) level in all groups after treatment. The results of this present studies showed that the Hg-induced glucose metabolism alteration in rats which can be seen from the increase of liver glucose and the decreasing of liver glycogen levels. The results also showed that the Hginduced glucose metabolism alteration through its activities in the trigger the liver cells damage which can be seen from the decreasing of liver weight and the increase of liver MDA level. The ethanolic of C. nardus leaves extract shows a protective effect to maintain all parameters into a better a condition which can be seen from the significant increase in liver weight and liver glycogen level, and the significant decrease in liver glucose and MDA levels. The present study indicated that the ethanolic C. nardus leaves extract showed a potential protective effect on glucose metabolism alteration induced by Hg

In Vitro Diabetogenic Effect of Cadmium on Liver

2017 ◽  
Vol 8 (01) ◽  
Author(s):  
Agung Biworo ◽  
Dwi Rezki Amalia ◽  
Gratianus Billy Himawan ◽  
Lisda Rizky Amalia ◽  
Valentina Halim ◽  
...  
Keyword(s):  
Glucose Metabolism ◽  
Liver Homogenate ◽  
Liver Cells ◽  
Male Rats ◽  
Glycogen Level ◽  
Liver Sample ◽  
Km Value ◽  
Cd Exposure ◽  
Menten Constant

The objectives of this study were to determine the effect of cadmium (Cd) on glucose metabolism disruption in liver cells homogenate in vitro. The glucose metabolism disruption was analyzed by measuring the level of liver glucose, glycogen and methylglyoxal (MG), and the activity of glucokinase activity. In this experiment, a liver sample was taken from male rats (Rattus novergicus). Samples then homogenized and divided into four groups with; C served as control which contains liver homogenate only; T1 which contains liver homogenate + 0.03 mg/l of cadmium sulphate (CdSO4); T2 which contains liver homogenate + 0.3 mg/l of CdSO4; and T3 which contains liver homogenate + 3 mg/l of CdSO4. After treatment, liver glucose, glycogen, and MG levels, and glucokinase activity were estimated. The activity of liver glucokinase was estimated by measuring the Michaelis-Menten constant (Km) value. The results revealed that Cd exposure could significantly increase glucose and MG levels, the Km value of glucokinase, and decreased the glycogen level in liver cells (P>0.05). These results indicated that Cd exposure induced the disruption of glucose metabolism in the liver.

The Effect of FGF-21 on Glucose Metabolism in The Resistin-induced Insulin Resistance Liver Cells

2013 ◽  
Vol 40 (6) ◽  
pp. 524
Author(s):  
Miao LIU ◽  
Wen-Fei WANG ◽  
Ming-Yao LIU ◽  
Jing-Zhuang ZHAO ◽  
Yin BAI ◽  
...  
Keyword(s):  
Insulin Resistance ◽  
Glucose Metabolism ◽  
Liver Cells

Primary Human Liver Cells as Source for Modular Extracorporeal Liver Support - a Preliminary Report

2002 ◽  
Vol 25 (10) ◽  
pp. 1001-1005 ◽  
Author(s):  
I.M. Sauer ◽  
K. Zeilinger ◽  
N. Obermayer ◽  
G. Pless ◽  
A. Grünwald ◽  
...  
Keyword(s):  
Human Liver ◽  
Treatment Time ◽  
Liver Perfusion ◽  
Cell Mass ◽  
Liver Weight ◽  
Liver Cells ◽  
Liver Support ◽  
Overall Treatment Time ◽  
Human Liver Cells ◽  
Extracorporeal Liver Support

Cell-based extracorporeal liver support is an option to assist or replace the failing organ until regeneration or until transplantation can be performed. The use of porcine cells or tumor cell lines is controversial. Primary human liver cells, obtained from explanted organs found to be unsuitable for transplantation, are a desirable cell source as they perform human metabolism and regulation. The Modular Extracorporeal Liver Support (MELS) concept combines different extracorporeal therapy units, tailored to suit the individual and intra-individual clinical needs of the patient. A multi-compartment bioreactor (CellModule) is loaded with human liver cells obtained by 5-step collagenase liver perfusion. A cell mass of 400 g – 600 g enables the clinical application of a liver lobe equivalent hybrid organ. A detoxification module enables single pass albumin-dialysis via a standard high-flux dialysis filter, and continuous venovenuous hemodiafiltration may be included if required. Cells from 54 human livers have been isolated (donor age: 56 ± 13 years, liver weight: 1862 ± 556 g resulting in a viability of 55.0 ± 15.9%). These grafts were not suitable for LTx, due to steatosis (54%), cirrhosis (15%), fibrosis (9%), and other reasons (22%). Out of 36 prepared bioreactors, 10 were clinically used to treat 8 patients with liver failure. The overall treatment time was 7–144 hours. No adverse events were observed. Initial clinical applications of the bioreactor evidenced the technical feasibility and safety of the system.

scholarly journals Protective effect of dehydroepiandrosterone against lipid peroxidation in a human liver cell line

1999 ◽  
pp. 35-39 ◽  
Author(s):  
M Gallo ◽  
M Aragno ◽  
V Gatto ◽  
E Tamagno ◽  
E Brignardello ◽  
...  
Keyword(s):  
Lipid Peroxidation ◽  
Protective Effect ◽  
Human Liver ◽  
Antioxidant Properties ◽  
Liver Cells ◽  
Threshold Concentration ◽  
Blue Staining ◽  
Lag Phase ◽  
Human Liver Cell ◽  
Chang Liver

OBJECTIVE: Dehydroepiandrosterone (DHEA) is a widely studied steroid hormone with multi-functional properties. Reports suggest that some of the many activities of DHEA are due to its protective effect against lipid peroxidation. Nevertheless, the antioxidant properties of DHEA are still the subject of debate. The aim was to evaluate whether its two opposed effects on lipid peroxidation reported in the literature may be dependent on schedule and doses used. METHODS: Chang liver cells, a line derived from normal human liver, were grown in media containing either no steroids (control) or DHEA at concentrations ranging from 0.1 micromol/l to 50 micromol/l. At specific times, cultures were halted and cells received a pro-oxidant stimulus (cumene (CuOOH) 0.5 mmol/l), at which time cell viability (by trypan blue staining and lactate dehydrogenase (LDH) release) and thiobarbituric acid reactive substances (TBARS) concentration (spectrophotometrical assay) were evaluated. RESULTS: At concentrations ranging from 0.1 micromol/l to 1 micromol/l, DHEA protects Chang liver cells against lipid peroxidation and/or death induced by cumene. This effect disappears if the concentration is increased to 10 micromol/l; at higher concentrations (50 micromol/l) a pro-oxidant/cytotoxic effect of DHEA appears. CONCLUSIONS: DHEA exhibits two opposed effects on lipid peroxidation; depending on its concentration it acts either to limit or to induce oxidative stress. The threshold concentration at which the pro-oxidant activity of DHEA prevails is not far in excess of that having an antioxidant effect. Either effect of DHEA on lipid peroxidation is only evident after a 'lag-phase'.

Ameliorative Effect of Withaferin A on Ageing-Mediated Impairment in the Dopamine System and Its Associated Behavior of Wistar Albino Rat

Pharmacology ◽  
2018 ◽  
Vol 103 (3-4) ◽  
pp. 114-119 ◽  
Author(s):  
Mohammad Raziya Banu ◽  
Muhammed Ibrahim ◽  
K. Prabhu ◽  
Srinivasagam Rajasankar
Keyword(s):  
Protective Efficacy ◽  
Motor Impairment ◽  
Withaferin A ◽  
Albino Rats ◽  
Aged Rats ◽  
Albino Rat ◽  
Aged Rat ◽  
Group Iii ◽  
Group I ◽  
Ameliorative Effect

Withaferin A (WA) was evaluated for its neuro-protective efficacy on ageing induced striatal dopamine (DA) and behavioural changes in aged rats. Wistar albino rats were divided into group I – young (3 months), Group II – aged (24 months), Group III – aged rats supplemented with WA (50 mg/kg b.w once in a day for 30 days) and Group IV – young rats supplemented with WA (50 mg/kg b.w). The HPLC assay revealed significant decline in the levels of DA and homovanillic acid (HVA) in substantia nigra (SN) and striatum (ST) of aged rat. A marked decline in motor activity of aged rat was observed through open field, beam walking and grid walking motor experiments. These results indicate that ageing reduces nigro-striatal activity as well as nigro-striatal DA levels. Interestingly, the administration of WA (50 mg\kg b.w) resulted in a substantial resurge of DA and HVA in SN and ST and a significant reversal of motor impairment in aged rats. This study is the first report that evidently determines the neuro-protective efficacy of WA on dopaminergic system of SN and ST in aged rats.

scholarly journals Efficacy of a spatial repellent for control of malaria in Indonesia: a cluster-randomized controlled trial

2019 ◽  
Author(s):  
Din Syafruddin ◽  
Puji BS Asih ◽  
Ismail Ekoprayitno Rozi ◽  
Dendi Hadi Permana ◽  
Anggi Puspa Nur Hidayati ◽  
...  
Keyword(s):  
Protective Effect ◽  
Protective Efficacy ◽  
Controlled Trial ◽  
Effective Means ◽  
Placebo Control ◽  
Radical Cure ◽  
Significance Level ◽  
Spatial Repellent ◽  
Cluster Randomized ◽  
First Time

AbstractA cluster randomized, double-blinded, placebo-controlled trial was conducted to estimate protective efficacy of a spatial repellent against malaria infection at Sumba, Indonesia. Following radical cure in 1,341 children aged ≥ 6 months - ≤5 years in 24 clusters, households were given transfluthrin or placebo passive emanators (devices designed to release vaporized chemical). Monthly blood screening and biweekly human-landing mosquito catches were performed during 10-months baseline (June 2015 to March 2016) and a 24-month intervention period (April 2016 to April 2018). Screening detected 164 first-time infections and an accumulative total of 459 infections in 667 subjects in placebo-control households; and 134 first-time and 253 accumulative total infections among 665 subjects in active intervention households. The 24-cluster protective effect of 27.7% and 31.3%, for time to first-event and overall (total new) infections, respectively, was not statistically significant. Purportedly, this was due in part to zero to low incidence in some clusters, undermining the ability to detect a protective effect. Subgroup analysis of 19 clusters where at least one infection occurred during baseline showed 33.3% (p-value = 0.083) and 40.9% (p-value = 0.0236, statistically significant at the 1-sided 5% significance level) protective effect to first-infection and overall infections, respectively. Among 12 moderate-to high-risk clusters, a statistically significant decrease on infection by intervention was detected (60% protective efficacy). Primary entomological analysis of impact was inconclusive. While this study suggests spatial repellents prevent malaria, additional evidence is required to demonstrate the product class provides an operationally feasible and effective means of reducing malaria transmission.

Influence de la thiourée sur la charge en glycogéne du foie de l'embryon de poulet

Development ◽  
1971 ◽  
Vol 25 (3) ◽  
pp. 377-384
Author(s):  
Nicole Daugéras
Keyword(s):  
Chick Embryo ◽  
Glycogen Content ◽  
Antithyroid Drug ◽  
Liver Glycogen ◽  
Thyroid Activity ◽  
Glycogen Level ◽  
Glycogen Concentration ◽  
Liver Glycogen Content ◽  
Thyroid Glands ◽  
Embryo Liver

Influence of thiourea on the glycogen content of the liver of the chick embryo In the developing chick embryo, liver glycogen appears on the sixth day of incubation. The glycogen content increases from the sixth day, but decreases on the twelfth day before increasing again. This decrease on day 12 might be related to the onset of thyroid activity, which would be responsible for an increased rate of utilization of the substrates. An antithyroid drug, thiourea, has been injected on day 6·0. The liver glycogen concentration of the thiourea-treated chick embryos was determined from the tenth to the fifteenth days and compared with that of the control embryos. (i) On days 11 and 12 the liver glycogen concentration of the injected embryos is higher than that of the controls. (ii) On day 13 the liver glycogen level of treated embryos decreases; this decrease might be correlated with possible functional activity of the thyroid glands if their biosynthesis is no longer inhibited by the thiourea injection or with thyroid hormones possibly coming from the yolk. (iii) On days 14 and 15 no difference is observed between the liver glycogen content of the thiourea-treated embryos and that of the controls.

The Antioxidant Efficacy of Wheatgrass (Triticum Aestivum) on Mercuric Chloride (HgCl2) - Induced Oxidative Stress in Rat Model

2021 ◽  
Vol 9 (2) ◽  
pp. 450-464
Author(s):  
Renu Tripathi ◽  
Swati Agarwal ◽  
Syed Ibrahim Rizvi ◽  
Neetu * Mishra
Keyword(s):  
Oxidative Stress ◽  
Mercuric Chloride ◽  
Rat Model ◽  
Antioxidant Status ◽  
Protective Efficacy ◽  
Density Lipoprotein ◽  
Control Group ◽  
Albino Rats ◽  
Antioxidant Power ◽  
Group I

Mercury is a harmful toxic pollutant, which has hepato-nephrotoxic, hematotoxic, genotoxic and neurotoxic, effects. The aim of the study was to evaluate the protective efficacy of wheatgrass on mercuric chloride (HgCl2) induced oxidative stress and associated complications in rat model. Albino rats were divided into four groups (three rats per group). Group I normal control group. Group II oxidative stressed group received mercuric chloride (0.5 mg/kg/day). Group III only received wheatgrass extract (100 mg/kg/day), whereas Group IV received wheatgrass (100 mg/kg/day) after one hour, followed by mercuric chloride (0.5 mg/kg/day) for 30 days. The results of the study showed that wheatgrass supplementation significantly decreased the HgCl2 induced elevated oxidative stress parameters Plasma Malondialdehyde (MDA) content, Plasma membrane redox system (PMRS), Advanced oxidation protein products (AOPP), simultaneously elevated lipid profile (Total Cholesterol, Triglycerides, Low-density lipoprotein (LDL), liver enzymes as, Plasma Alkaline phosphatase (ALP), Aspartate aminotransferase (AST), and Alanine aminotransferase (ALT), Serum Urea, and Creatinine levels in rats. In addition, wheatgrass treatment improved the antioxidant status in terms of intracellular Reduced Glutathione (GSH), Ferric reducing antioxidant power (FRAP) and 2, 2- diphenyl -1- picrylhydrazyl (DPPH). Therefore it can be concluded that wheatgrass has great potential to diminish the stress-mediated complications and improve the antioxidant status.

The influence of pre-slaughter transport and lairage on meat quality in pigs of two genotypes

1990 ◽  
Vol 50 (1) ◽  
pp. 165-172 ◽  
Author(s):  
P. D. Warriss ◽  
S. N. Brown ◽  
E. A. Bevis ◽  
S. C. Kestin
Keyword(s):  
Meat Quality ◽  
Live Weight ◽  
Liver Weight ◽  
Liver Glycogen ◽  
Transport Time ◽  
White Line ◽  
Cross Sectional ◽  
Carcass Yield ◽  
Compliance With The Law ◽  
The Uk

ABSTRACTTwo hundred and thirty-nine pigs reared at the Meat and Livestock Commission's Stotfold Pig Development Unit and derived from the four major breeding companies in the UK were slaughtered at 63 kg live weight in an experiment which examined the effect of genotype (Meat-line or White-line), pre-slaughter transport time (1 or 4 h) and lairage time (2 or 21 h) on carcass and meat quality. The pre-slaughter handling was chosen to simulate good commercial procedures and cover the range of transport and lairage times probably experienced by a large proportion of British slaughter pigs. Meatline pigs had higher killing-out proportions and heavier carcasses, with increased cross-sectional area of the m. longissimus dorsi. Backfat thickness was similar in the two genotypes. White-line pigs had heavier livers and produced meat which potentially had a lower incidence of PSE. Longer transport time increased live-weight loss. It reduced carcass yield in the White-line but not in the Meat-line pigs. Transport had no major effects on meat quality. Longer lairage, during which the pigs were fed in compliance with the law, resulted in reduced carcass yield but increased liver weight and allowed some repletion of liver glycogen. It also reduced ultimate pH values in the m. semimembranosus and m. adductor. There were no important or consistent differences in the way pigs of the two genotypes responded to pre-slaughter handling.

Sign in / Sign up

Export Citation Format

Share Document