scholarly journals EFFECTS OF FEEDING GENETICALLY MODIFIED (GM) MAIZE ON OXIDATIVE STRESS PARAMETERS IN NEW ZEALAND RABBIT

2018 ◽  
Vol 20 (1) ◽  
pp. 173-176 ◽  

In this study, we investigated the effects of Genetically Modified (GM) Maize on liver and kidney tissue weights, malondialdehyde (MDA) and glutathione (GSH) levels of liver and kidney tissues in New Zealand Rabbits. For this purpose, rabbits were divided into three groups: parental, first-generation and second-generation. Each group was divided into two sub-groups i.e. control group and the treatment group. Rabbits on the control group were fed with conventional maize (non-GM), whereas rabbits which are in the treatment groups were fed with GM maize. Six females and six male New Zealand rabbits were used per group. At the end of the experimental period, tissue samples were taken and tissue weights, MDA and GSH levels were determined. Overall, as the generations progressed, a statistically significant increase in liver weights and a decrease in kidney weights were observed. There was no statistically significant change as regards MDA and GSH levels of liver and kidney tissues of groups without GM maize inclusion in the diet. However in all three-generation of GM maize treated groups, there was a significant decrease in GSH levels and a significant increase in MDA levels were observed.

2017 ◽  
Vol 33 (12) ◽  
pp. 887-900 ◽  
Author(s):  
Jianshe Ma ◽  
Fa Sun ◽  
Bingbao Chen ◽  
Xiaoting Tu ◽  
Xiufa Peng ◽  
...  

We developed a metabolomic method to evaluate the effect of pirfenidone on rats with acute paraquat (PQ) poisoning, through the analysis of various tissues (lung, liver, kidney, and heart), by gas chromatography–mass spectrometry (GC-MS). Thirty-eight rats were randomly divided into a control group, an acute PQ (20 mg kg−1) poisoning group, a pirfenidone (20 mg kg−1) treatment group, and a pirfenidone (40 mg kg−1) treatment group. Partial least squares-discriminate analysis (PLS-DA) revealed metabolic alterations in rat tissue samples from the two pirfenidone treatment groups after acute PQ poisoning. The PLS-DA 3D score chart showed that the rats in the acute PQ poisoning group were clearly distinguished from the rats in the control group. Also, the two pirfenidone treatment groups were distinguished from the acute PQ poisoning group and control group. Additionally, the pirfenidone (40 mg kg−1) treatment group was separated farther than the pirfenidone (20 mg kg−1) treatment group from the acute PQ poisoning group. Evaluation of the pathological changes in the rat tissues revealed that treatment with pirfenidone appeared to decrease pulmonary fibrosis in the acute PQ poisoning rats. The results indicate that pirfenidone induced beneficial metabolic alterations in the tissues of rats with acute PQ poisoning. Rats with acute PQ poisoning exhibited a certain reduction in biochemical indicators after treatment with pirfenidone, indicating that pirfenidone could protect liver and kidney function. Accordingly, the developed metabolomic approach proved to be useful to elucidate the effect of pirfenidone in rats of acute PQ poisoning.


Molekul ◽  
2016 ◽  
Vol 11 (1) ◽  
pp. 80 ◽  
Author(s):  
Titik Taufikurohmah ◽  
I Gusti Made Sanjaya ◽  
Afaf Baktir ◽  
Achmad Syahrani

The background of this research is the circulation cosmetic with mercury that occur today in society. The problem of the research is that occur histochemical’s damage liver and kidney after exposure to mercury, and is that nanogold can recovery that damage. The pre-clinical study needed 24 mice (Mus muscullus) were divided into 6 groups, the control is A group, B group was exposed to mercury, Groups C, D, E and F after being exposed to mercury, than recovery by nanogold with concentration each of 5, 10, 15 and 20 ppm. Exposure was performed 1 week and 4 weeks of recovery. Necropsy of mice doing after treatment, liver and kidneys are processed into preparations by blocking with paraffin embedding method. Histochemical staining of liver and kidney tissue with Hematoxylin eosin (HE) to determine changes of cell constituent and staining Van Geyson to determine the structure of collagen constituent. Statistics Manova showed different results between treatment groups. Tissue damage, lysis cell and destruction of collagen can be observed from histochemical techniques for mercury-exposed group compared to the control group. Tissue and collagen recovery process can be observed from group C, D, E and F. The conclusion that the effects of mercury one week exposed through skin give effect to collagen tissue damage at liver and kidneys of mice. 20 ppm of Nanogold can recovery damaged cells and collagen tissue from the liver and kidneys of mice after four weeks of recovery.


2019 ◽  
Vol 20 (1) ◽  
pp. 12-18
Author(s):  
Sameh El-Nabtity

The present study aimed to investigate the prophylactic effect of Cymbopogon proximus and Alhagi maurorum on Sulfadimidine induced urolithiasis in rabbits . Thirty New Zealand male rabbits were allocated into six equal groups (each of five): Group (1) was used as a negative control. Group(2) were administered sulfadimidine (200mg/kg) by intramuscular injection.Groups(3) and (4) were administered sulfadimidine(200mg/kg) by intramuscular injection and 330mg/kg of Cymbopogon proximus alcoholic and aqueous extracts respectively orally.Groups(5) and (6) were administered sulfadimidine(200mg/kg) by intramuscular injection and 400mg/kg of Alhagi maurorum alcoholic and aqueous extracts respectively orally. The period of experiment was 10 days. Blood and urine samples were collected from rabbits on the 10th day. The results recorded a significant decrease in serum creatinine, urea, uric acid and crystalluria in Cymbopogon proximus and Alhagi maurorum groups compared to sulfadimidine treated group.We conclude that Cymbopogon proximus and Alhagi maurorum have a nephroprotective and antiurolithiatic effects against sulfadimidine induced crystalluria.


2020 ◽  
Vol 11 (1) ◽  
pp. 7580-7588

The purpose of this study was to investigate the effects of zinc and melatonin administration on lipid peroxidation in various tissues in DMBA-induced breast cancer in female rats. A total of 42 recently weaned Wistar rats were divided into 5 groups in the study: Group 1 (Control), Group 2 (DMBA Control), Group 3 (DMBA+Zinc), Group 4 (DMBA+Melatonin), Group 5 (DMBA+Melatonin, and Zinc). MDA (malondialdehyde) and GSH (glutathione) levels were determined via the spectrophotometric method in the lung, liver, spleen, pancreas, and kidney tissue samples taken from experimental animals. The highest lung, liver, spleen, pancreas, and kidney tissue MDA levels were obtained in the DMBA-induced breast cancer group control group (G2) (p<0.05). MDA levels in DMBA+Zinc (G3), DMBA+Melatonin (G4), and DMBA+Melatonin and Zinc (G5) were significantly lower than group 2 (p<0.05). Similarly, lung, liver, spleen, pancreas, and kidney tissue GSH levels of DMBA+Zinc (G3), DMBA+Melatonin (G4), and DMBA+Melatonin and Zinc (G5) were significantly higher than that of Group 2 (p<0.05). The findings of the study indicated that increased lung, liver, spleen, pancreas, and kidney damage in DMBA-induced breast cancer is suppressed with the supplementation of zinc, melatonin, and combined zinc and melatonin.


2021 ◽  
Author(s):  
Atta Mohammad Dost ◽  
Mehmet Gunata ◽  
Onural Ozhan ◽  
Azibe Yildiz ◽  
Nigar Vardi ◽  
...  

Abstract Amikacin (AK) is frequently used in the treatment of gram-negative and some gram-positive infections. However, its use is limited due to nephrotoxicity due to the increase in reactive oxygen radicals. The aim of this study was to investigate the role of carvacrol (CAR) against AK-induced nephrotoxicity in rats. Thirty-two Sprague Dawley rats were randomly divided into four groups as control (Vehicle), AK (400 mg/kg), CAR + AK (80 mg/kg CAR + 400 mg/kg AK), and AK + CAR (400 mg/kg AK + 80 mg/kg CAR) groups. AK and CAR were administered via intramuscular and per-oral for 7 days, respectively. Blood and kidney tissue samples were taken at the end of the experiment. Renal function and histopathological changes were compared, and the relevant parameters of oxidative stress and inflammation were detected. Histopathological findings (necrotic changes and dilatation and inflammatory cell infiltration) significantly increased in the AK group compared to the control group. Also, the rats in the AK group lost weight significantly. It was found that CAR treatment before and after AK significantly improved nephrotoxicity histopathologically (p < 0.05). However, this improvement was not detected biochemically. These results show that CAR treatment before and after AK improves nephrotoxicity in the histopathological level.


Author(s):  
Hamid Reza Jamshidi ◽  
Faezeh Taheri

Background and Aims: Mercuric chloride is highly toxic once absorbed into the bloodstream, especially the kidneys in which it is collected. Mercury chloride increases hydrogen peroxide and enhances the destruction of protective enzymes such as superoxide dismutase (SOD) and glutathione peroxidase (GPX), leading to oxidative stress. Besides, thymol has anti-oxidant effects and can increase the activity of SOD and GPX. This study aims to evaluate the efficacy of thymol on mercury chloride-induced toxicity. Materials and Methods: In this study, 30 rats, consisting of 6 groups of 5, were used. Control group receiving a single dose of 0.5 mg/kg mercuric chloride for 15 days, third, fourth, and fifth group received intraperitoneal injection of mercuric chloride at a dose of 0.5 mg/kg for 15 days plus thymol at a dose of 10, 30, 50 mg/kg. The sixth group received mercuric chloride at a dose of 0.5 mg/kg for 15 days plus thymol at 30 mg/kg per day for ten days. Results: Results showed a significant difference in the activity of catalase enzyme in kidney tissue samples test. According to the results of SOD, there is a significant difference between the group of corn oil and the group of mercury chloride and between the group of mercury chloride and the group that receives thymol at a dose of 10, 30, 50 mg/kg (p ≤ 0.05). Conclusions: It can be concluded that mercury chloride-induced kidney toxicity and thymol have anti-oxidant protective effects for SOD and GPX.


2018 ◽  
Vol 16 (1) ◽  
pp. 105-113 ◽  
Author(s):  
A Dey ◽  
K Ghosh ◽  
N Hazra

Growth and survival of Clarias batrachus juveniles (10-day old) fed probiotic Bacillus cereus (KR809412) encapsulated live feed (chironomid larvae) have been evaluated after differential exposure to the pathogenic Aeromonas hydrophila (MTCC 1739). Catfish juveniles were stocked at a density of 30 fish per tank in five experimental groups (T1-T5) along with a control group in triplicate and fed twice @ 5% of body weight day-1 for four weeks. Groups T1 and T2 were fed probiotic-encapsulated (PR) or pathogen-inoculated (PGN) live feed respectively, for initial three weeks. During this period groups T3 (PGN-PR-PR), T4 (PR-PGN-PR), and T5 (PR-PR-PGN) were differentially exposed to the pathogen. Live feed without probiotic and pathogen was offered to the control group throughout the experimental period and all other treatment groups (T1-T5) during the 4th week. Continuous exposure to probiotics in group T1 resulted in significantly higher (P<0.05) specific growth rate (SGR, % d-1) and survivability than other groups, whereas, pathogen exposed and probiotic deprived group (T2) noticed with the lowest SGR and the highest mortality. Among other treatment groups (T3, T4 and T5), group T4 resulted in improved SGR and survivability. The coefficient (r value) of 0.867 along with regression slope suggested a positive correlation (0.01 levels) between RNA: DNA and SGR. The study might suggest protective effects of probiotic B. cereus in pathogen exposed C. batrachus juveniles.SAARC J. Agri., 16(1): 105-113 (2018)


2011 ◽  
Vol 56 (No. 3) ◽  
pp. 123-130 ◽  
Author(s):  
M.R. Alam ◽  
H.B. Lee ◽  
M.S. Kim ◽  
N.S. Kim

This study was performed to make a surgical model of osteoarthritis (OA) in the dog. Experimental medial patellar luxation (MPL) was surgically produced in the left stifle (index) of 24 skeletally mature mixed small breed dogs (age two to six years and weight 2.8 to 9 kg). The animals were randomly allocated in 2 groups; sham group (n = 12), where the right stifle was sham operated and control group (n = 12) with intact right stifle. Physical and radiographic examinations of both stifles were performed at 1.5 months intervals over a one-year experimental period. One dog was euthanatized every three months, and both stifles were explored, gross examination was performed and tissue samples from the articular cartilage, cranial cruciate ligament (CCL) and synovium were collected for histomorphology. The clinical signs of OA were obvious in the experimental dogs by 12 weeks of surgical induction of MPL, which was also evidenced in the histopathology of the joint tissues and electron microscopy of the articular cartilage. The radiographic changes of OA were not obvious until remarkable degenerative changes became abvious six months postoperatively. Surgically induced MPL can be a successful tool for experimental induction of OA in dogs.


Author(s):  
Ramesh Kumar ◽  
Sanjay Kumar ◽  
Jyoti Palod ◽  
Himani Tewari ◽  
Balwan Singh

The aim of the present study was to determine the effect of chedu and mattha on growth performance of Murrah buffalo calves. To assess the effect of chedu and mattha on growth rate, 20 growing buffalo calves of around 1 year of age and approximately of same weights were selected and were divided into 4 treatment groups having 5 animals in each group. The animals had access to ad libitum berseem hay as the basal roughage T0 (Control), T1 (Administration of mattha @ 2% of body weight with salt @ 0.5% of mattha), T2 (Application of chedu on their body @ 150 g per animal), T3 (Administration of mattha and application of chedu). Body weight of all buffalo calves was recorded at 15 days interval during the experimental period. From 75th day of experiment, significant effect (P<0.05) was observed in body weight, heart girth and height at withers of treatment groups as compared to control group whereas, body length and paunch girth showed significant effect (P<0.05) on 90th day of experiment. The results further indicated that use of chedu and mattha improved the health status of the calves and helped to attain a comparatively higher body weight and an early puberty. It can be concluded on the basis of findings of present research work that the use of chedu and mattha may be recommended for supplementation of calves’ diet, as it improves the health status of the calves and helps in the attainment of higher body weight and an early onset of puberty in the calves.


1996 ◽  
Vol 47 (6) ◽  
pp. 877 ◽  
Author(s):  
J Lee ◽  
JR Rounce ◽  
AD Mackay ◽  
ND Grace

Cadmium (Cd) concentrations in various tissues of Romney sheep and rates of accumulation, as affected by Cd concentrations in pasture and soil, DM intake, and animal age, were determined in a 25-month study. After weaning, 6 groups of 10 wether lambs were grazed on a low Cd (0.l8 � 0.08 8g Cd/g DM) or high Cd (0.52 � 0.17 8g Cd/g DM) pasture in 3 replicates. The rate of accumulation of Cd (8g /day) into the liver and kidney was greatest in sheep aged about 6 months (for the low and high Cd pastures: kidney 0.27 and 0.56; liver 0.35 and 1 I), after which it declined with age (kidney 0.02 and 0.03: liver <0901 and 0.05; at 28 months of age). Total content of Cd in the organs continued to increase. In 6-month-old animals, 0.25% of total Cd ingested was retained by the kidney and liver, but this proportion decreased to about 0.05% of Cd intake with 28-month-old animals. Net retention of Cd in the fleece-free body as a percentage of daily Cd intake for both the control and treatment animals was estimated between 0- 35 and 0 5%. Except for muscle tissue from sheep in the treatment group, for which the mean Cd concentration was lower than that of the control group (2.0 � 0.24 and 3 9 � 0.63 r)g Cd/g fresh tissue, respectively), Cd concentrations in kidney, liver, thymus, muscle, and lung tissue increased over the first 3 months for both groups of animals. After 2 years, animals on the treatment pastures had approximately 3-fold greater Cd concentrations in liver, kidney, and duodenal tissue tissue than those grazing the control pastures (liver, 361 � 58 v. 97 � 11; kidney, l485 � 200 v. 352f48; duodenal tissue, 32f 4 v. 18f 2.5 t)g Cd/g FW, respectively). At higher Cd intakes, the adaptive effect of increased metallothionein synthesis enabled the animal to be more efficient in binding Cd, which restricted accumulation of Cd in muscle. The regression ([Cd] kidney = -205 + 0. 981Cdintake + 0 - 726Time; r = 0.82, P < 0.001) gave the best fit for the observed Cd concentration in the kidney tissue. Daily Cd intake was also a better predictor of the Cd concentration in liver tissue than the concentration of Cd in pasture by itself ([Cd]liver, = 24.7 + 0.353Cdintake; r = 0.81, P < 0.001). Accurate predictions of the potential for Cd accumulation in young grazing animals will enable more effective management strategies to be implemented to reduce Cd accumulation and therefore minimise the potential impact relating to both environment and market.


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