scholarly journals NEUROPROTECTIVE EFFECT OF ANACARDIUM OCCIDENTALE (CASHEW APPLE FRUIT) AGAINST ALUMINUM TOXICITY: AN EXPERIMENTAL STUDY ON COGNITIVE DYSFUNCTION AND BIOCHEMICAL ALTERATIONS IN RATS

Author(s):  
Gade Kalyani ◽  
Bhagyasree P

ABSTRACTObjective: To study the protective role of fruit extract of Anacardium occidentale (cashew apple) in aluminum-induced cognitive dysfunction andoxidative damage in albino rat, and to explore the neuroprotective effect of A. occidentale represented by behavior and memory tests.Methods: Male Wistar rats (30) were divided into 5 groups of 6 rats each. Group I received normal saline. Group II was administered orally withaluminum chloride (100 mg/kg). Group III received rivastigmine 0.3 mg/kg body orally. Groups IV and V were administered with A. occidentale200 and 400 mg/kg along with aluminum chloride of 100 mg/kg orally after 1 hr interval. The study was carried out for 42 days (6 weeks). Thebehavioral assessment was performed using Rota-rod apparatus and Elevated plus maze and Biochemical parameters from brain homogenate such asacetylcholinesterase activity, total protein, lipid peroxidation malondialdehyde, superoxide dismutase (SOD), catalase, and glutathione reductase (GR)were estimated. All the data were analyzed using one-way analysis of variance followed by Tukey’s multiple comparison test.Results: The % reduction of acetylcholinesterase, GR observed in A.O (400 mg/kg) dose as compared with that of standard drug was found to be87.5% and 89%, respectively, whereas % reduction of catalase and SOD observed in A.O (400 mg/kg) dose as compared with that of standard drugwas found to be 97% and 99%, respectively.Conclusion: This study demonstrates A. occidentale fruit has a neuroprotective effect against aluminum-induced behavioral changes.Keywords: Occidentale, Neuroprotective, Alzheimer’s disease, Aluminum.

2021 ◽  
pp. 1-9
Author(s):  
Guizhen Liu ◽  
Yuchuan Sun ◽  
Fei Liu

<b><i>Objective:</i></b> The purpose of this study was to explore the role of curcumin (Cur) in isoflurane (ISO)-induced learning and memory dysfunction in Sprague-Dawley rats and further elucidate the mechanism of the protective effect produced by Cur. <b><i>Methods:</i></b> Rat models of cognitive impairment were established by inhaling 3% ISO. The Morris water maze test was used to assess the cognitive function of rats. ELISA and qRT-PCR were used to analyze the protein levels of pro-inflammatory cytokines and expression levels of miR-181a-5p, respectively. <b><i>Results:</i></b> Cur significantly improved the ISO-induced cognitive dysfunction in rats and alleviated the ISO-induced neuroinflammation. miR-181a-5p was overexpressed in ISO-induced rats, while Cur treatment significantly reduced the expression of miR-181a-5p. Overexpression of miR-181a-5p promoted the cognitive impairment and the release of inflammatory cytokines and reversed the neuroprotective effect of Cur. <b><i>Conclusion:</i></b> Cur has a protective effect on ISO-induced cognitive dysfunction, which may be achieved by regulating the expression of miR-181a-5p.


QJM ◽  
2020 ◽  
Vol 113 (Supplement_1) ◽  
Author(s):  
H R Elareny ◽  
A I Ahmed ◽  
A F Alneklawy ◽  
M K Tawfik

Abstract Introduction Nowadays interest in aging has greatly increased, Aging is a complex natural process involving every molecule, cell, and organ in the body that is associated with tissue dysfunction in many organs. Aging of the cornea causes major eye effects and leads to substantial cost in medical and social terms. These effects include the highly prevalent dry eye disease (DED) that affects both visual function and quality of life in elderly. Symptoms of (DED) include, ocular pain, visual disturbances, and increase lacrimation. Functional foods such as Royal jelly (RJ) have a growing attention because of consumers increasing concerns about their health. Its importance not only for its nutritional properties but also for its functional and biological properties such as antioxidant, anti-inflammatory, antibacterial, antiviral, and anti-ulcerous activities. It is used as a cheap natural source in daily life and medicine. (RJ) is a complex substance composed of proteins, sugars, lipids, amino acids, vitamins, and minerals. Aim The present study aimed to investigate the histological effect of aging on the cornea of male albino rat and possible therapeutic role of (RJ) on senile group. Materials and Methods Twenty-four male albino rats were used in this study divided into Group I: consisted of 6 adult male rats aged 3- 6 months. Group II: consisted of 18 senile male rats aged 18-24 months, were further subdivided into three subgroups as follows: Group II A: (n = 6) negative control senile rats, not subjected to any procedure for 4 weeks. Group II B: (n = 6) control senile rats and were given distilled water by oral gavage once daily for 4 weeks. Group II C: (n = 6) senile rats were given (RJ) by oral gavage dissolved in distilled water once daily for 4 weeks. At the end of the experiment, rats were sacrificed after being deeply anesthetized with ether according to the protocol of the Committee of Animal Research Ethics (CARE). The cornea of each animal was carefully dissected out after death and immediately fixed in 10% formalin for preparation of paraffin blocks 5 micrometer thickness. Sections were stained with hematoxylin and eosin (I-I&E), Masson's trichrome and periodic acid-Schiff (PAS). Statistical analysis and quantitative morphometric study were done. Results Light microscopic examination of corneas of senile rats revealed different pathological changes included irregularity in the surface epithelium as well as surface erosions and cytoplasmic vacuolations. The stroma showed widely separated collagen fibers with decreased keratocyte density. It was concluded that (RJ) supplementation to senile rats obviously unproved all layers of the cornea histologically.


LWT ◽  
2017 ◽  
Vol 84 ◽  
pp. 457-463 ◽  
Author(s):  
Óscar Rodríguez ◽  
Wesley F. Gomes ◽  
Sueli Rodrigues ◽  
Fabiano A.N. Fernandes

2016 ◽  
Vol 2016 ◽  
pp. 1-7 ◽  
Author(s):  
Harikesh Maurya ◽  
Monika Semwal ◽  
Susheel Kumar Dubey

Objective. The study was designed to evaluate pharmacological potential of hydroalcoholic leaves extract of Chrozophora tinctoria intended for wound healing in diabetic rats’ model. Methods. The method used to evaluate the pharmacological potential of hydroalcoholic leave extract was physical incision rat model. In this model, cutting of the skin and/or other tissues with a sharp blade has been made and the rapid disruption of tissue integrity with minimal collateral damage was observed shortly. Animals used in the study were divided into four groups that consist of six animals in each group. Group I serves as normal control, Group II serves as disease control, Group III was used as standard treatment (Povidone iodine 50 mg/kg b.w.), and Group IV was used for test drug (C. tinctoria 50 mg/kg b.w.). Result. The hydroalcoholic leave extract of Chrozophora tinctoria has been significantly observed to heal the wound (98%) in diabetic rats within 21 days, while standard drug (Povidone iodine) healed the wound about 95% in the same condition. The oral dose (50 mg/kg b.w.) of Chrozophora tinctoria was also found to improve the elevated blood glucose level in comparison to disease control group, which increased after the oral administration of Streptozotocin. Conclusion. The Chrozophora tinctoria has significant wound healing potential in the animal having physically damaged tissue in diabetic condition.


Pharmacology ◽  
2018 ◽  
Vol 103 (3-4) ◽  
pp. 114-119 ◽  
Author(s):  
Mohammad Raziya Banu ◽  
Muhammed Ibrahim ◽  
K. Prabhu ◽  
Srinivasagam Rajasankar

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.


Author(s):  
Stalin Ramakrishnan ◽  
Karthick Dharmalingam ◽  
Sachidanandham T Panchanatham ◽  
Shanthi Palanivelu

<p><strong>Objective: </strong>To determine the effect of <em>Tridham</em> (TD) and 1,2,3,4,6-penta-O-galloyl-β-d-glucose(PGG) on lipid peroxidation levels and mitochondrial antioxidants status in experimental mammary carcinoma.</p><p><strong>Methods</strong>:<strong> </strong><em>Elaecoarpus ganitrus </em>(fruits), <em>Terminalia chebula </em>(seed coats), <em>Prosopis cineraria </em>(leaves)<em>, </em>adult female albino rats of Sprague-Dawley strain weighing 170–190 g and 7,12-dimethylbenzeneanthracene (DMBA) were used for this study. Group I control rats, Group II rats mammary carcinoma induced with DMBA (25 mg in 1 ml olive oil) by gastric intubation. Group III, IV and V DMBA induced rats were treated with TD (400 mg/kg. b. wt/day), PGG (30 mg/kg. b. wt/day) and standard drug, Cyclophosphamide (30 mg/kg. b. wt/day), respectively for 48 d by gastric intubation. Group VI and VII rats served as TD and PGG treated controls, respectively for 48 d by gastric intubation. At the end of the experimental period, the rats were anaesthetized and sacrificed. Mammary glands were isolated and used for biochemical assays and histopathological evaluation.</p><p><strong>Results: </strong>In rats with cancer, the lipid peroxide levels (LPO) were significantly increased and mitochondrial antioxidant levels were decreased. Treatment with TD and PGG decreased LPO levels and increased mitochondrial antioxidant status in mammary carcinoma bearing rats. Histopathological analysis also confirmed the therapeutic effect of TD and PGG. No significant adverse effect was observed in sole drug treated group of rats.</p><p><strong>Conclusion: </strong>TD and PGG have definite therapeutic effect in experimental mammary carcinoma and inhibit growth of cancer cells by restoring mitochondrial antioxidant status and energy metabolism to normal states.</p>


Author(s):  
Prasanna Kumari S. ◽  
Latha K. ◽  
Meeradevi A.

Background: Levofloxacin is a fluorinated quinolone antimicrobial used in the treatment of various bacterial infections and was active against both gram positive and gram negative bacteria. Levofloxacin is an optically active isomer of ofloxacin. Apart from its antibacterial action, it also exhibit antinociceptive properties. This study was conducted with the aim to evaluate the analgesic activity of Levofloxacin in albino rat in comparison with aspirin.Methods: Thirty adult albino rats weighing 150-250 gm were obtained from central animal house. The animals were divided into five groups of six animals each. Group I served as control received normal feed and water. Group II served as standard received tablet aspirin 100 mg/kg (oral) and Group III, IV, V served as test T1, T2, T3 and received tablet levofloxacin 10 mg/kg, 20 mg/kg and 40 mg/kg (oral), respectively. The analgesic effect of levofloxacin was evaluated using Eddy’s hot plate and tail flick methods and compared with standard analgesic aspirin. The values obtained were expressed as mean±SD. Statistical analysis of difference between groups were carried out using one-way analysis of variance (ANOVA). Probability p<0.05 was taken as the level of statistical significance.Results: Levofloxacin at 40 mg/kg showed statistically (p<0.05) elevation in pain threshold and a higher antinociceptive activity in comparison to control and standard groups.Conclusions: In the present study, levofloxacin has showed promising results as an analgesic when compared to the control and standard groups. It may be a lead compound for identifying newer adjuvant analgesic agents.


Author(s):  
Sumra Komal

Introduction: Hepatic diseases remain the leading cause of death worldwide. Despite overall advancements in health care, mortality due to hepatic diseases is constantly growing. More than 2 million people globally are estimated to die each year from liver diseases, and current treatment offers little for its management. Thus, it is essential to find more effective and less toxic pharmaceutical alternatives for the treatment of liver diseases. Aims & Objectives: Tamarix dioica, a shrub broadly used in herbal medicine for the treatment and prevention of various diseases. The current study was designed to analyze the hepatoprotective effect of T. dioica in BALB?cmice against CCl4-induced acute liver damage. Place and duration of study: The study was conducted in NIH, Islamabad, Pakistan, for six months in 2016-2017. Material & Methods: For in vivo evaluation, the animals (n= 42) were randomly divided into seven groups (n=6), three control (i.e. Group, I or normal control, group II or induction control received 0.9% normal saline orally, and Group III or positive control received silymarin 100 mg/kg per oral), and four treatment groups (i.e. IV, V,VI and VII were treated with oral T.dioica 200 mg/kg/day, 300mg/kg/day methanol extract, 200mg/kg/day and 300mg/kg/day of aqueous extracts respectively for six days, followed by intraperitoneal administration of CCl4 on the seventh day. The blood samples were collected for analysis of LFTs, and hepatic tissue was taken for histological analysis. Data was analyzed using SPSS version 16, one-way ANOVA with Duncan’s Multiple Range Test (DMRT). Results: CCl4 induction in Group 2 resulted in severe hepatic derangement manifested as highly elevated mean LFTs (ALT 7245.56, AST 3292.11, ALP 340.09 U/L, bilirubin 4.64 mg/dl) as compared to healthy controls (ALT 38.97, AST 50.20, ALP 57.17 U/L, bilirubin 1.25 mg/dl: (Group 1) levels p<0.001. Pretreatment with different extracts of T.dioica for 6 days before CCl4 administration produced varying degrees of hepatoprotection. 300mg/kg aqueous extract T.dioica (Group7) prevented damage with maximal hepatoprotection, reduced LFTs (ALT: 339.95 , AST: 242.90 , ALP: 116.86 U/L, bilirubin: 1.38 mg/dl) and normalized liver histology as compared to Group 2 and standard drug silymarin 100mg/kg, (ALT: 6483.23, AST: 2567.69, ALP: 272.19 U/L, bilirubin: 2.84 mg/dl: Group 3) p<0.001. Lesser hepatoprotection was provided by T.dioica aqueous extract 200mg/kg (ALT: 439.93, AST: 367.87, ALP: 180.62 U/L bilirubin: 1.53 mg/dl: Group VI) and least by 300mg/kg & 200mg/kg methanolic extracts Groups V & IV (ALT: 6338.06, 6443.91, AST: 2800.81, 3012.34, ALP: 242, 248 U/L & bilirubin: 2.82 & 3.62 mg/dl) respectively. Further, no drug-induced toxicity symptoms were observed 24 hours after administration of the high dose oral T. dioica 2000 mg/kg/body weight aqueous and methanolic extracts were administered. Conclusion: Pretreatment with T. dioica extracts especially 300mg/kg aqueous extract reduced acute CCl4-mediated liver damage, ameliorated histopathological as well as biochemical parameters and was free of toxicity in 2000mg/kg /body weight dose in the mice experimental model. T. dioica has potential in hepatoprotective drug research.


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