scholarly journals Antioxidant and haematological potentials of fruit wastes from Terminalia catappa and observable trophic effect on weight of wistar rats after exposure to monosodium glutamate

2020 ◽  
Vol 9 (6) ◽  
pp. 392-398
Author(s):  
Philemon C Anuforo ◽  
◽  
Anthony Cemaluk C Egbuonu ◽  
Elizabeth U Egu ◽  
Ejike Chukwunyere ◽  
...  
Keyword(s):  
Normal Control ◽  
Wistar Rats ◽  
Monosodium Glutamate ◽  
Economic Benefits ◽  
Dependent Manner ◽  
Sod Activity ◽  
Trophic Effect ◽  
Terminalia Catappa ◽  
Fruit Wastes ◽  
Dose Dependent

This study investigated the antioxidant and haematological potentials of a fruit wastes from Terminalia catappa and observable trophic effect on weight of Wistar rats after acute exposure to monosodium glutamate. Twenty-four male albino Wistar rats with mean weight of 120.61±15.15 g were divided into six groups (n=4). Group 1, the normal control (received distilled water), group II, the negative control (received 8mg MSG/g b.wt), group III, the extract control (received 300 mg extract/kg b.wt), group IV (received 8 mg MSG/g b.wt. + 100 mg extract/kg b.wt.), group V (received 8 mg MSG/g b.wt. + 300 mg kg-1 b.wt. extract) and group VI (received 8 mg MSG/g b.wt. + 500 mg extract/kg b.wt). Treatment was administered daily by oral gavage for 14 days. Data were subjected to one-way ANOVA followed by Duncan post-hoc test at p<0.05 and means were estimated and significant differences noted. DPPH antioxidant assay for the fruit wastes ethanol extract of Terminalia catappa endocarp revealed the extract produced 92.8% inhibition which is comparable to 96.07% inhibition produced by ascorbic acid at the same concentration, as well as, possessed FRAP activity in a concentration dependent manner. In vivo antioxidant assays carried out revealed that the superoxide dismutase (SOD) activity was significantly (p<0.05) lowered in the MSG-treated group but the catalase (CAT) activity showed a non-significant decrease as compared to the normal control, confirming there was oxidative stress. However, treatment with the extract increased the activities of SOD and CAT perhaps due to the presence of phenolic and flavonoids components. There was a significant (p<0.05) increase in WBC and RBC and could be attributed to the potential of the extract to stimulate the immune system. Haemoglobin (Hb) and packed cell volume (PCV) in MSG-extract co-administered rats showed a positive ameliorative effect of the extract in a dose dependent manner when compared to MSG group. Weight gain following extract administration was not dose dependent. The results showed that the fruit wastes had antioxidant potency and haematological potential. This bio-approach is promising as it solves the problem of environmental burden, as well as, serves economic benefits and hence, may become increasingly attractive.

scholarly journals Oxidative stress is reduced in Wistar rats exposed to smoke from tobacco and treated with specific broad-band pulse electromagnetic fields

2009 ◽  
Vol 61 (3) ◽  
pp. 353-366 ◽  
Author(s):  
V. Bajic ◽  
B. Bajic ◽  
Zorana Milicevic ◽  
Slavica Ristic ◽  
A. Nokolau
Keyword(s):  
Oxidative Stress ◽  
Wistar Rats ◽  
Broad Band ◽  
Control Group ◽  
Dependent Manner ◽  
Sod Activity ◽  
Rat Lungs ◽  
Pulse Electromagnetic Fields ◽  
Dose Dependent

There have been a number of attempts to reduce the oxidative radical burden of tobacco. A recently patented technology, pulse electromagnetic technology, has been shown to induce differential action of treated tobacco products versus untreated products on the production of reactive oxygen species (ROS) in vivo. In a 90-day respiratory toxicity study, Wistar rats were exposed to cigarette smoke from processed and unprocessed tobacco and biomarkers of oxidative stress were compared with pathohistological analysis of rat lungs. Superoxide dismutase (SOD) activity was decreased in a dose-dependent manner to 81% in rats exposed to smoke from normal cigarettes compared to rats exposed to treated smoke or the control group. These results correspond to pathohistological analysis of rat lungs, in which those rats exposed to untreated smoke developed initial signs of emphysema, while rats exposed to treated smoke showed no pathology, as in the control group. The promise of inducing an improved health status in humans exposed to smoke from treated cigarettes merits further investigation.

scholarly journals Antidiarrheal Activity of Dissotis multiflora (Sm) Triana (Melastomataceae) Leaf Extract in Wistar Rats and Subacute Toxicity Evaluation

2017 ◽  
Vol 2017 ◽  
pp. 1-9 ◽  
Author(s):  
Alian Désiré Afagnigni ◽  
Maximilienne Ascension Nyegue ◽  
Chantal Florentine Ndoye Foe ◽  
Youchahou Njankouo Ndam ◽  
Frédéric Nico Njayou ◽  
...  
Keyword(s):  
Wistar Rats ◽  
Leaf Extract ◽  
Shigella Flexneri ◽  
Female Rats ◽  
Male Rats ◽  
Dependent Manner ◽  
Subacute Toxicity ◽  
Antidiarrheal Activity ◽  
Dose Dependent ◽  
Ethanolic Leaf Extract

The present work was undertaken to evaluate antidiarrheal activity of ethanolic leaf extract of Dissotis multiflora (Sm) Triana (D. multiflora) on Shigella flexneri-induced diarrhea in Wistar rats and its subacute toxicity. Diarrhea was induced by oral administration of 1.2 × 109 cells/mL S. flexneri to rats. Antidiarrheal activity was investigated in rats with the doses of 111.42 mg/kg, 222.84 mg/kg, and 445.68 mg/kg. The level of biochemical parameters was assessed and organs histology examined by 14 days’ subacute toxicity. S. flexneri stool load decreased significantly in dose-dependent manner. The level of ALT increased (p<0.05) in male rats treated with the dose of 445.68 mg/kg while creatinine level increased in rats treated with both doses. In female rats, a significant decrease (p<0.05) of the level of AST and creatinine was noted in rats treated with the dose of 222.84 mg/kg of D. multiflora. Histological exams of kidney and liver of treated rats showed architectural modifications at the dose of 445.68 mg/kg. This finding suggests that D. multiflora leaf extract is efficient against diarrhea caused by S. flexneri but the treatment with doses lower than 222.84 mg/kg is recommended while further study is required to define the exact efficient nontoxic dose.

Nicotine Suppression of Gustatory Responses of Neurons in the Nucleus of the Solitary Tract

2006 ◽  
Vol 96 (4) ◽  
pp. 1877-1886 ◽  
Author(s):  
Christopher T. Simons ◽  
Yves Boucher ◽  
Mirela Iodi Carstens ◽  
E. Carstens
Keyword(s):  
Monosodium Glutamate ◽  
Plasma Extravasation ◽  
Dependent Manner ◽  
Evoked Responses ◽  
Solitary Tract ◽  
Depressant Effect ◽  
Tongue Surface ◽  
Single Unit Recordings ◽  
Gustatory Neurons ◽  
Dose Dependent

This study investigated effects of nicotine applied to the tongue surface on responses of gustatory neurons in the nucleus of the solitary tract (NTS) in rats. In pentobarbital-anesthetized rats, single-unit recordings were made from NTS units responsive to one or more tastants (sucrose, NaCl, citric acid, monosodium glutamate, quinine). Application of nicotine (0.87, 8.7, or 600 mM) excited gustatory NTS units and significantly attenuated NTS unit responses to their preferred tastant in a dose-dependent manner. The depressant effect of nicotine was equivalent regardless of which tastant best excited the NTS unit. Nicotinic excitation of NTS units and depression of their tastant-evoked responses were both significantly attenuated by the nicotinic antagonist mecamylamine, which itself did not excite NTS units. In rats with bilateral trigeminal ganglionectomy, nicotine still excited nearly all NTS units but no longer depressed tastant-evoked responses. Nicotine did not elicit plasma extravasation when applied to the tongue. The results indicate that nicotine directly excites NTS units by gustatory nerves and inhibits their tastant-evoked responses by a nicotinic acetylcholine receptor-mediated excitation of trigeminal afferents that inhibit NTS units centrally.

scholarly journals Effect of the oral administration of monosodium glutamate during pregnancy and breast-feeding in the offspring of pregnant Wistar rats

2010 ◽  
Vol 25 (1) ◽  
pp. 37-42 ◽  
Author(s):  
Vinicius von Diemen ◽  
Manoel Roberto Maciel Trindade
Keyword(s):  
Weight Gain ◽  
Oral Administration ◽  
Wistar Rats ◽  
Monosodium Glutamate ◽  
The Other ◽  
Control Group ◽  
Pregnant Rats ◽  
Dependent Relation ◽  
Dose Dependent

PURPOSE: Determine the effects of the MSG (monosodium glutamate) in the offspring of pregnant rats through the comparison of the weight, NAL (nasal-anal length) and IL (Index of Lee) at birth and with 21 days of life. METHODS: Pregnant Wistar rats and their offspring were divided into 3 groups: GC, G10 and G20. Each of the groups received 0%, 10% and 20% of MSG, respectively from coupling until the end of the weaning period. RESULTS: Neither weight nor NAL were different among the groups at birth. The group G20 at birth had an IL lower than the group GC (p<0,05) and with 21 days of life presented weight and NAL lower than the groups G10 and this lower than the GC (p<0,01). Otherwise the G20 at 21 days of life had the IL similar to the other two groups. The weight profit percentage from birth to the 21st day of life was lower in the G20 regarding the other two groups (p<0,01). The G20 had a NAL increase percentage from birth to the 21st day of life lower than the G10 and this lower than the GC (p<0,01). CONCLUSIONS: MSG presented a dose-dependent relation in the variables weight and NAL. It caused a decrease in the growth pattern as well as in the weight gain pattern until the 21st day of life. The IL of the group 20% had an increased in relation to the control group after 3 weeks of follow up.

scholarly journals Natural Antioxidant Betanin Protects Rats from Paraquat-Induced Acute Lung Injury Interstitial Pneumonia

2015 ◽  
Vol 2015 ◽  
pp. 1-9 ◽  
Author(s):  
Junyan Han ◽  
Deshun Ma ◽  
Miao Zhang ◽  
Xuelian Yang ◽  
Dehong Tan
Keyword(s):  
Body Weight ◽  
Acute Lung Injury ◽  
Lung Injury ◽  
Weight Ratio ◽  
Lavage Fluid ◽  
Dependent Manner ◽  
Sod Activity ◽  
Protein Levels ◽  
Injury Characteristic ◽  
Dose Dependent

The effect of betanin on a rat paraquat-induced acute lung injury (ALI) model was investigated. Paraquat was injected intraperitoneally at a single dose of 20 mg/kg body weight, and betanin (25 and 100 mg/kg/d) was orally administered 3 days before and 2 days after paraquat administration. Rats were sacrificed 24 hours after the last betanin dosage, and lung tissue and bronchoalveolar lavage fluid (BALF) were collected. In rats treated only with paraquat, extensive lung injury characteristic of ALI was observed, including histological changes, elevation of lung : body weight ratio, increased lung permeability, increased lung neutrophilia infiltration, increased malondialdehyde (MDA) and myeloperoxidase (MPO) activity, reduced superoxide dismutase (SOD) activity, reduced claudin-4 and zonula occluden-1 protein levels, increased BALF interleukin (IL-1) and tumor necrosis factor (TNF)-αlevels, reduced BALF IL-10 levels, and increased lung nuclear factor kappa (NF-κB) activity. In rats treated with betanin, paraquat-induced ALI was attenuated in a dose-dependent manner. In conclusion, our results indicate that betanin attenuates paraquat-induced ALI possibly via antioxidant and anti-inflammatory mechanisms. Thus, the potential for using betanin as an auxilliary therapy for ALI should be explored further.

scholarly journals ANTI-DIABETIC EFFECT OF A NOVEL NANO POLYMER OF THYMOL IN STREPTOZOTOCIN-INDUCED DIABETIC WISTAR RATS

2019 ◽  
pp. 81-89
Author(s):  
ELAHE KARIMI ◽  
SHAHRYAR ABBASI ◽  
ALI AIDY ◽  
HORI GHANEIALVAR ◽  
SHAHRAM MOHAMMADPOUR ◽  
...  
Keyword(s):  
Animal Model ◽  
Biochemical Parameters ◽  
Wistar Rats ◽  
Liver Enzymes ◽  
Serum Glucose ◽  
Diabetic Rats ◽  
Dependent Manner ◽  
Elisa Kit ◽  
Blood Biochemical ◽  
Dose Dependent

Objective: The aim of this study was to evaluate the effect of thymol and thymol nano polymer on the blood biochemical parameters and anti-diabetic activity in Streptozotocin (STZ)-induced diabetic rats. Methods: The synthesized nano polymer (NP) was characterized by using different spectroscopy methods, such as IR, HNMR and CNMR. Loading and releasing of thymol were investigated by HPLC. Eleven groups of the Streptozotocin-induced diabetic and normal rats (overall 110 males) were tested through various biochemical factors such as: serum glucose, insulin, liver function-related enzymes including ALT, AST, ALP and bilirubin by ELISA kit methods. Results: It has shown that thymol nano polymer is desirable for transferring drug. The amount of thymol loaded on NP estimated at 43±2.5 %. Then, 65% of the loaded drug was released. LD50 for thymol and thymol nano polymer were 435 and 583 mg/kg, respectively. thymol nano polymer at doses of 30, 60 and 90 mg/kg, in a dose-dependent manner, reduced blood glucose, increased insulin levels, and controlled liver enzymes ALT, AST, ALP and bilirubin in the STZ-induced diabetic rats. Conclusion: The use of thymol nano polymer appears to be a new aspect concerning to protect diabetes-induced damage in the animal model.

scholarly journals Role of Mas Receptor Antagonist A799 in Renal Blood Flow Response to Ang 1-7 after Bradykinin Administration in Ovariectomized Estradiol-Treated Rats

2015 ◽  
Vol 2015 ◽  
pp. 1-9 ◽  
Author(s):  
Aghdas Dehghani ◽  
Shadan Saberi ◽  
Mehdi Nematbakhsh
Keyword(s):  
Blood Flow ◽  
Renal Blood Flow ◽  
Wistar Rats ◽  
Group Versus ◽  
Dependent Manner ◽  
Mas Receptor ◽  
Flow Response ◽  
Renal Vascular ◽  
Dose Dependent

Background. The accompanied role of Mas receptor (MasR), bradykinin (BK), and female sex hormone on renal blood flow (RBF) response to angiotensin 1-7 is not well defined. We investigated the role of MasR antagonist (A779) and BK on RBF response to Ang 1-7 infusion in ovariectomized estradiol-treated rats.Methods. Ovariectomized Wistar rats received estradiol (OVE) or vehicle (OV) for two weeks. Catheterized animals were subjected to BK and A799 infusion and mean arterial pressure (MAP), RBF, and renal vascular resistance (RVR) responses to Ang 1-7 (0, 100, and 300 ng kg−1 min−1) were determined.Results. Percentage change of RBF (%RBF) in response to Ang1-7 infusion increased in a dose-dependent manner. In the presence of BK, when MasR was not blocked, %RBF response to Ang 1-7 in OVE group was greater than OV group significantly (P<0.05). Infusion of 300 ng kg−1 min−1Ang 1-7 increased RBF by6.9±1.9% in OVE group versus0.9±1.8% in OV group. However when MasR was blocked, %RBF response to Ang 1-7 in OV group was greater than OVE group insignificantly.Conclusion. Coadministration of BK and A779 compared to BK alone increased RBF response to Ang 1-7 in vehicle treated rats. Such observation was not seen in estradiol treated rats.

Mechanisms of Hepatoprotection ofTerminalia catappaL. Extract on D-Galactosamine-Induced Liver Damage

2004 ◽  
Vol 32 (04) ◽  
pp. 509-519 ◽  
Author(s):  
Xin-Hui Tang ◽  
Ling Gao ◽  
Jing Gao ◽  
Yi-Mei Fan ◽  
Li-Zhi Xu ◽  
...  
Keyword(s):  
Superoxide Radicals ◽  
Mitochondrial Swelling ◽  
Dependent Manner ◽  
Scavenging Activity ◽  
Protective Effects ◽  
Cultured Hepatocytes ◽  
Sod Activity ◽  
Primary Cultured Hepatocytes ◽  
Hepatoprotective Effects ◽  
Dose Dependent

The hepatoprotective effects of the extract of Terminalia catappa L. leaves (TCE) against D-Galactosamine (D-GalN)-induced liver injury and the mechanisms underlying its protection were studied. In acute hepatic injury test, it was found that serum ALT activity was remarkably increased (3.35-fold) after injection of D-GalN in mice. But with oral pretreatment of TCE (20, 50 and 100 mg/kg/d) for 7 days, change in serum ALT was notably reversed. In primary cultured hepatocytes from fetal mice, it was found that cell viability was decreased by 45.0% after addition of D-GalN, while incubation with TCE (0.1, 0.5 and 1.0 mg/ml) for 36 hours could prevent the decrease in a dose-dependent manner. Meanwhile, D-GalN-induced both the increase of AST level (1.9-fold) and the decrease of SOD activity (48.0%) in supernatant of primary cultured hepatocytes could also be inhibited by pretreatment with TCE. In order to study the possible mechanisms underlying its hepatoprotective effects, one effective component separated from TCE, 2α, 3β,23-trihydroxyursane-12-en-28-oic acid (DHUA), was used to determine anti-mitochondrial swelling activity and superoxide radicals scavenging activity in vitro. It was found that at the concentration range of 50–500 μmol/L DHUA, Ca2+-induced mitochondrial swelling was dose-dependently inhibited, and superoxide radicals scavenging activity was also shown in a dose-dependent manner. It was concluded that TCE has hepatoprotective activity and the mechanisms underlying its protective effects may be related to the direct mitochondrion protection and strong scavenging activity on reactive oxygen species (ROS).

scholarly journals Possible Antioxidant and Haematinic Properties of the Stem Bark of Theobroma cacao L. in Wistar Rats

2021 ◽  
pp. 18-26
Author(s):  
B. O. Oluwatayo ◽  
T. A. Kolawole ◽  
C. C. Wali ◽  
O. A. Olayanju ◽  
A. E. J. Okwori
Keyword(s):  
Aqueous Extract ◽  
Theobroma Cacao ◽  
Wistar Rats ◽  
Antioxidant Activities ◽  
Research Work ◽  
Stem Bark ◽  
Dependent Manner ◽  
Group 2 ◽  
Dose Dependent ◽  
Theobroma Cacao L

Background: This study investigated the potential antioxidant effects of aqueous extract of the stem bark of Theobroma cacao L. in Wistar rats. Methods: Twenty Wistar rats weighing between 126 g – 224 g were grouped randomly into 4groups of 5 rats each. Group 1 served as control and received water while groups 2, 3 and 4 rats were given 1000mg/kg, 3000mg/kg and 5000mg/kg b.wt of the extract respectively for 28days. On the 29th day, the rats were anaesthetized and blood samples were collected for analysis of some haematological parameters, enzymatic and non- enzymatic antioxidant activities. Results: The results obtained showed that there was significant increase (p<0.001) in SOD, Catalase activities and MDA levels in a dose dependent manner. The results also showed significant increase (p<0.001) in RBC Group 2, 3 and 4 rats when compared to the Group1. Significant increase was also observed in Hemoglobin (Hb) and Hematocrit (Hct) level in group 2 and 3 rats (p<0.001). Mean corpuscular volume was significantly increased in group 2 rats (p<0.001). Conclusion: The findings from this study showed the antioxidant and hematinic potentials of the stem bark of Theobroma cacao L.The aqueous extract of the stem bark of Theobroma cacao L. has a potential antioxidative and hematinic effects in Wistar rats. This is largely due to its rich phytochemical and nutritive contents. Further research work will be needed to see the possible application of these properties in humans.

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