EVALUATION OF NEUROPHARMACOLOGICAL ACTIVITY OF PUNICA GRANATUM L. PEELS IN EXPERIMENTAL RATS

INDIAN DRUGS ◽  
2014 ◽  
Vol 51 (10) ◽  
pp. 16-22
Author(s):  
J Alvares ◽  
◽  
M. H. Godinho
Keyword(s):  
Morris Water Maze ◽  
Water Maze ◽  
Ethanolic Extract ◽  
Tween 80 ◽  
Punica Granatum ◽  
Oral Route ◽  
Morris Water Maze Test ◽  
Phytochemical Analysis ◽  
Hot Plate ◽  
Punica Granatum L

Extracts of peels of Punica granatum L. were screened for neuropharmacological activities viz. antianxiety, analgesic and learning and memory activities, using Elevated Plus Maze (EPM), Hot Plate Analgesiometer and Morris Water Maze, respectively. Aqueous extract of the peels (200mg/kg) and ethanolic extracts (200mg/kg and 400mg/kg) were administered by oral route for seven days. The control used was 1% Tween 80. Diazepam (4 mg/kg) and pentazocine (5 mg/kg) were used as standard drugs. Phytochemical analysis of the extracts was conducted. The rats receiving the ethanolic extract at a dose of 400mg/kg showed a significant increase in percentage open arm entries and percentage time spent in open arms in the EPM test thus indicating anti-anxiety activity. All the three extracts showed significant increase in reaction time on the hot plate analgesiometer and significant decrease in latency in the Morris Water Maze test, thus demonstrating analgesic activity and memory enhancement.

scholarly journals Effect of crude extract and its semi purified constituents from guaraná seeds [Paullinia cupana var. sorbilis (Mart.) lucke] on cognitive performance in Morris water maze in rats

2005 ◽  
Vol 48 (5) ◽  
pp. 723-728 ◽  
Author(s):  
Fernanda Jacques Otobone ◽  
Andréia Conegero Sanches ◽  
Rosangela Lika Nagae ◽  
Juliana Vanessa Colombo Martins ◽  
Simoni Obici ◽  
...  
Keyword(s):  
Morris Water Maze ◽  
Water Maze ◽  
Escape Latency ◽  
Tween 80 ◽  
Morris Water Maze Test ◽  
Stimulant Effect ◽  
Paullinia Cupana ◽  
Low Toxicity ◽  
Different Doses

The effect of crude lyophilized extract (EBPC) and the semi-purified constituents (EPA and EPB) of Paullinia cupana (guaraná) seeds long-term administered in rats by gavage at different doses was studied on cognitive behavior in rats. EBPC (30.0 mg/kg) and EPA (2.0 mg/kg), but not EPB (2.0 or 4.0 mg/kg) showed a smaller escape latency to find the emerged platform in Morris water maze test (MWMT), showing nootropic-like effect in normal rats, and in scopolamine induced amnesia rats compared to their controls (saline + 0.2% Tween 80) group. These extracts had no significant effect in open field test (OFT). Caffeine did alter escape latency in MWMT only in scopolamine induced amnesia rats and increased the crossings number in OFT, showing significant stimulant effect. Chronic treatment showed the same increase in body weight and average lifespan indicating a low toxicity for the extracts.

HPTLC Analysis with the Effect of Bacopa monnieri, Evolvulus alsinoides and Tinospora cordifolia against Scopolamine-Induced Amnesic Rats

2020 ◽  
Vol 10 (2) ◽  
pp. 159-168
Author(s):  
Avneet Gupta ◽  
Manish P. Singh ◽  
Siddhraj S. Sisodia
Keyword(s):  
Passive Avoidance ◽  
Morris Water Maze ◽  
Water Maze ◽  
Memory Function ◽  
Ethanolic Extract ◽  
Bacopa Monnieri ◽  
Tinospora Cordifolia ◽  
Morris Water Maze Test ◽  
Equal Proportion ◽  
Evolvulus Alsinoides

Background and Objective: Bacopa monnieri, Evolvulus alsinoides, and Tinospora cordifolia are well known herbal Ayurvedic medicinal plants with a memory enhancing property. The aim of this study was HPTLC analysis for evaluating the effect of ethanolic extract of Bacopa monnieri (BME), Evolvulus alsinoides (EAE) and Tinospora cordifolia (TCE) alone and in combination of equal proportion (CEPs) against scopolamine-induced amnesic rats. Methods: HPTLC analysis was done to evaluate the presence of phytoconstituents in these plants. Morris water maze and passive avoidance tests were also used to evaluate the effect on memory function. All pretreatment with BME, EAE, TCE, and CEPs was done at 200 mg/kg. The observation was done on the basis of the effect on mean latency time (in seconds) in the Morris water maze test and latency to reach shock free zone (SFZ), mistakes in 15 minutes on the Passive-avoidance test. Results: It was observed that after HPTLC analysis, Bacoside A (Rf value; 0.82) found in BME, flavonoid glycoside (Rf value; 0.31) found in EAE and unknown compounds (Rf value; 0.11, 0.39) observed in TCE. BME, EAE, TCE and their combinations of equal proportion [CEP-1 (BME+EAE), CEP-2 (BME+TCE), CEP-3 (EAE+TCE) and CEP-4 (BME+EAE+TCE)] produced significant effects against scopolamine-induced amnesia in rats. Conclusion: These findings suggested that the content of extracts of these compounds has an antioxidant property in the brain. Also, BME, EAE, and TCE in the CEPs provide a synergistic effect on behavioral assessment.

Zhuyu Annao decoction promotes angiogenesis in mice with cerebral hemorrhage by inhibiting the activity of PHD3

2021 ◽  
pp. 096032712110085
Author(s):  
L Wu ◽  
Y Hu ◽  
L Jiang ◽  
N Liang ◽  
P Liu ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Signaling Pathway ◽  
Morris Water Maze ◽  
Cerebral Hemorrhage ◽  
Water Maze ◽  
Luciferase Reporter ◽  
Morris Water Maze Test ◽  
Therapeutic Effects ◽  
Vascular Endothelial ◽  
Behavioral Experiments

Some traditional Chinese decoctions, such as Zhuyu Annao, exert favorable therapeutic effects on acute cerebral hemorrhage, hemorrhagic stroke, and other neurological diseases, but the underlying mechanism remains unclear. This study aimed to determine whether Zhuyu Annao decoction (ZYAND) protects the injured brain by promoting angiogenesis following intracerebral hemorrhage (ICH) and elucidate its specific mechanism. The effect of ZYAND on the nervous system of mice after ICH was explored through behavioral experiments, such as the Morris water maze and Rotarod tests, and its effects on oxidative stress were explored by detecting several oxidative stress markers, including malondialdehyde, nitric oxide, glutathione peroxidase, and superoxide dismutase. Real-time quantitative RT-PCR and WB were used to detect the effects of ZYAND on the levels of prolyl hydroxylase domain 3 (PHD3), hypoxia-inducible factor-1α (HIF-1α), and vascular endothelial growth factor (VEGF) in the brain tissues of mice. The effect of ZYAND on the NF-κB signaling pathway was detected using a luciferase reporter gene. A human umbilical cord vascular endothelial cell angiogenesis experiment was performed to determine whether ZYAND promotes angiogenesis. The Morris water maze test and other behavioral experiments verified that ZYAND improved the neurobehavior of mice after ICH. ZYAND activated the PHD3/HIF-1α signaling pathway, inhibiting the oxidative damage caused by ICH. In angiogenesis experiments, it was found that ZYAND promoted VEGF-induced angiogenesis by upregulating the expression of HIF-1α, and NF-κB signaling regulated the expression of HIF-1α by inhibiting PHD3. ZYAND exerts a reparative effect on brain tissue damaged after ICH through the NF-κB/ PHD3/HIF-1α/VEGF signaling axis.

scholarly journals Musical Electroacupuncture May Be a Better Choice than Electroacupuncture in a Mouse Model of Alzheimer’s Disease

2016 ◽  
Vol 2016 ◽  
pp. 1-9 ◽  
Author(s):  
Jing Jiang ◽  
Gang Liu ◽  
Suhua Shi ◽  
Zhigang Li
Keyword(s):  
Alzheimer’S Disease ◽  
Alzheimer's Disease ◽  
Mouse Model ◽  
Frontal Lobe ◽  
Morris Water Maze ◽  
Water Maze ◽  
Morris Water Maze Test ◽  
Maze Test ◽  
Model Of Alzheimer’S Disease ◽  
Samp8 Mice

Objectives. To compare musical electroacupuncture and electroacupuncture in a mouse model of Alzheimer’s disease.Methods. In this study, 7.5-month-old male senescence-accelerated mouse prone 8 (SAMP8) mice were used as an Alzheimer’s disease animal model. In the normal control paradigm, 7.5-month-old male SAMR1 mice were used as the blank control group (N group). After 15 days of treatment, using Morris water maze test, micro-PET, and immunohistochemistry, the differences among the musical electroacupuncture (MEA), electroacupuncture (EA), Alzheimer’s disease (AD), and normal (N) groups were assessed.Results. The Morris water maze test, micro-PET, and immunohistochemistry revealed that MEA and EA therapies could improve spatial learning and memory ability, glucose metabolism level in the brain, and Aβamyloid content in the frontal lobe, compared with the AD group (P<0.05). Moreover, MEA therapy performed better than EA treatment in decreasing amyloid-beta levels in the frontal lobe of mice with AD.Conclusion. MEA therapy may be superior to EA in treating Alzheimer’s disease as demonstrated in SAMP8 mice.

Protective Effects of Dendrobium nobile Lindl. Alkaloids on Alzheimer's Disease-like Symptoms Induced by High-methionine Diet

2021 ◽  
Vol 19 ◽  
Author(s):  
Tingting Pi ◽  
Guangping Lang ◽  
Bo Liu ◽  
Jingshan Shi
Keyword(s):  
Alzheimer’S Disease ◽  
Learning And Memory ◽  
Morris Water Maze ◽  
Water Maze ◽  
Cpg Island ◽  
Morris Water Maze Test ◽  
Dendrobium Nobile ◽  
Maze Test ◽  
Neuron Damage ◽  
Cpg Island Methylation

Background: High methionine-diet (HMD) causes Alzheimer's disease (AD)-like symptoms. Previous studies have shown that Dendrobium nobile Lindle. alkaloids (DNLA) had potential benefits for AD. Object: Whether DNLA can improve AD-like symptoms induced by HMD is to be explored. Method: Mice were fed with 2% HMD diet for 11 weeks, the DNLA20 control group (20 mg/kg), DNLA10 group (10 mg/kg), and DNLA20 group (20 mg/kg) were administrated with DNLA for 3 months. Morris water maze test was used to detect learning and memory ability. Neuron damage was evaluated by HE and Nissl stainings. Levels of homocysteine (Hcy), beta-amyloid 1-42 (Aβ1-42), S-adenosine methionine (SAM), and S-adenosine homocysteine (SAH) were detected by ELISA. Immunofluorescence and western blotting (WB) were used to determine the expression of proteins. CPG island methylation. Results: Morris water maze test revealed that DNLA improved learning and memory dysfunction. HE, Nissl, and immunofluorescence stainings showed that DNLA alleviated neuron damage and reduced the 5-methylcytosine (5-mC), Aβ1-40, and Aβ1-42 levels. DNLA also decreased the levels of Hcy and Aβ1-42 in the serum, along with decreased SAM/SAH levels in the liver tissue. WB results showed that DNLA down-regulated the expression of the amyloid-precursor protein (APP), presenilin-1 (PS1), beta-secretase-1 (BACE1), DNA methyltransferase1 (DNMT1), Aβ1-40, and Aβ1-42 proteins. DNLA also up-regulated the expression of the protein of insulin-degrading enzyme (IDE), neprilysin (NEP), DNMT3a, and DNMT3b. Meanwhile, DNLA increased CPG island methylation levels of APP and BACE1 genes. Conclusions: DNLA alleviated AD-like symptoms induced by HMD via the DNA methylation pathway.

scholarly journals PHYTOCHEMICAL EVALUATION OF PUNICA GRANATUM L. LEAF EXTRACT

2017 ◽  
Vol 9 (4) ◽  
pp. 14 ◽  
Author(s):  
P. Sreedevi ◽  
K. Vijayalakshmi ◽  
R. Venkateswari
Keyword(s):  
Metabolic Diseases ◽  
Ethanolic Extract ◽  
Punica Granatum ◽  
Leaf Extracts ◽  
Bioactive Substances ◽  
Pharmaceutical Ingredients ◽  
Wide Range ◽  
Leaf Powder ◽  
Potent Drug ◽  
Punica Granatum L

Objective: This study was conducted to assess the phytochemical constituents in Punica granatum L. Leaf extracts (PGLE) using standard methods.Methods: The leaf powder was extracted using solvents namely aqueous, hydroalcohol, ethanol, ethyl acetate and n-hexane. Qualitative and Quantitative phytochemical screenings of PGLE were assessed by standard methods.Results: All the leaf extracts were positive for a wide range of bio-active compounds except n-hexane. The result has showed that the maximum amount of total phenols (394.16 mg/g DW of extract), total tannins (210.5 mg/g DW of extract), flavanoids (147.4 mg/g DW of extract) and total triterpenoids (112 mg/g DW of extract) were noted in ethanolic extract of P. granatum leaf (EPGL). The biological assay revealed that relevant amount of carbohydrate, protein, lipid and alkaloid in EPGL.Conclusion: The findings of this study concluded that the EPGL had potential bioactive substances that may be used as pharmaceutical ingredients for formulation of new or prospective potent drug to cure wide range of metabolic diseases.

Soybean Isoflavones Influences Learning and Memory and Caspase-3 Levels in the Hippocampus of Rats after MWM Test

2013 ◽  
Vol 411-414 ◽  
pp. 3178-3180
Author(s):  
Li Hai Jin ◽  
Xing Yu Zhao ◽  
Wei Zhang ◽  
Wei Chen ◽  
Guo Qing Sun ◽  
...  
Keyword(s):  
Learning And Memory ◽  
Morris Water Maze ◽  
Water Maze ◽  
Memory Impairment ◽  
Caspase 3 ◽  
Morris Water Maze Test ◽  
Once Daily ◽  
Soybean Isoflavones ◽  
Maze Test ◽  
Intermediate Dose

We assessed the effectiveness and mechanism of action of Soybean Isoflavones on learning and memory and Caspase-3 levels in the hippocampus of rats after Morris water maze (MWM test). Soybean Isoflavones (200,400 or 800 mg/kg/d) were administered by intragavage once daily for 14 consecutive days. The Morris water maze test was used to evaluate the ability of Soybean Isoflavones to increase learning and memory impairment. The levels of Caspase-3 in hippocampus of rats were detected by Westernblot after MWM test. Compared to untreated controls (P<0.01), MWM could be prolonged after Soybean Isoflavones treatment (P<0.05 for="" low="" and="" intermediate="" dose="" groups="" westernblot="" analysis="" showed="" that="" the="" protein="" expression="" of="" caspase-3="" was="" decreased="" in="" different="" concentration="" soybean="" isoflavones="" i="">P<0.05 and="" i="">P<0.01, respectively). The results suggest that Soybean Isoflavones is effective in improving the learning and memory in rats , the mechanism of which may be related Caspase ways.

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