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https://www.readbyqxmd.com/read/29133030/20-s-protopanaxadiol-ppd-alleviates-scopolamine-induced-memory-impairment-via-regulation-of-cholinergic-and-antioxidant-systems-and-expression-of-egr-1-c-fos-and-c-jun-in-mice
#1
Cong Lu, Liming Dong, Jingwei Lv, Yan Wang, Bei Fan, Fengzhong Wang, Xinmin Liu
20(S)-protopanaxadiol (PPD) possesses various biological properties, including anti-inflammatory, antitumor and anti-fatigue properties. Recent studies found that PPD functioned as a neurotrophic agent to ameliorate the sensory deficit caused by glutamate-induced excitotoxicity through its antioxidant effects and exhibited strong antidepressant-like effects in vivo. The objective of the present study was first to investigate the effect of PPD in scopolamine (SCOP)-induced memory deficit in mice and the potential mechanisms involved...
November 10, 2017: Chemico-biological Interactions
https://www.readbyqxmd.com/read/29132093/a-benzothiazole-piperazine-derivative-with-acetylcholinesterase-inhibitory-activity-improvement-in-streptozotocin-induced-cognitive-deficits-in-rats
#2
Ümide Demir Özkay, Özgür Devrim Can, Begüm Nurpelin Sağlık, Nazlı Turan
BACKGROUND: Acetylcholinesterase (AChE) inhibitors are frequently prescribed to mitigate the cognitive decline in Alzheimer's disease. Thus, we investigated the possible efficacy of the AChE inhibitor 2-[(6-Nitro-2-benzothiazolyl)amino]-2-oxoethyl4-[2-(N,N-dimethylamino)ethyl] piperazine-1 carbodithioate (BPCT) in a streptozotocin (STZ)-induced Alzheimer's disease model (SADM). METHODS: First, we analyzed the molecular interaction of BPCT with AChE via a docking study...
June 30, 2017: Pharmacological Reports: PR
https://www.readbyqxmd.com/read/29132092/berberine-attenuates-cognitive-impairment-and-ameliorates-tau-hyperphosphorylation-by-limiting-the-self-perpetuating-pathogenic-cycle-between-nf-%C3%AE%C2%BAb-signaling-oxidative-stress-and-neuroinflammation
#3
Wenbo He, Chuanling Wang, Yi Chen, Yongli He, Zhiyou Cai
BACKGROUND: Berberine (BBR) plays an important role in the prevention and treatment of Alzheimer's disease (AD). The present work was to explore whether BBR ameliorates cognitive deficits in AD and to investigate whether its underlying mechanism involves inhibiting hyperphosphorylated tau protein. METHODS: The cognitive function was measured by the Morris water maze (MWM) test. The levels of hyperphosphorylated tau proteins were determined by Western blot. The biomarkers of NF-κB signaling pathway and oxidative stress were detected by Western blot and biochemical assays...
June 15, 2017: Pharmacological Reports: PR
https://www.readbyqxmd.com/read/29131026/trpml1-participates-in-the-progression-of-alzheimer-s-disease-by-regulating-the-ppar%C3%AE-ampk-mtor-signalling-pathway
#4
Lu Zhang, Yu Fang, Xuan Cheng, Yajun Lian, Hongliang Xu, Zhaoshu Zeng, Hongcan Zhu
BACKGROUND: TRPML1 is reported to be involved in the pathogenesis of Alzheimer's disease (AD) by regulating autophagy; however, the underlying mechanism is not completely clear. METHODS: We developed an APP/PS1 transgenic animal model that presents with AD. TRPML1 was also overexpressed in these mice. Protein expression levels were determined by Western blot. Morris water maze (MWM) and recognition tasks were performed to characterize cognitive ability. TUNEL assays were analysed for the detection of neuronal apoptosis...
October 31, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/29130869/effects-of-a-museum-based-social-prescription-intervention-on-quantitative-measures-of-psychological-wellbeing-in-older-adults
#5
Linda J Thomson, Bridget Lockyer, Paul M Camic, Helen J Chatterjee
AIMS: To assess psychological wellbeing in a novel social prescription intervention for older adults called Museums on Prescription and to explore the extent of change over time in six self-rated emotions ('absorbed', 'active', 'cheerful', 'encouraged', 'enlightened' and 'inspired'). METHODS: Participants ( n = 115) aged 65-94 years were referred to museum-based programmes comprising 10 weekly sessions, by healthcare and third sector organisations using inclusion criteria (e...
November 1, 2017: Perspectives in Public Health
https://www.readbyqxmd.com/read/29113072/effects-of-1-8-ghz-radiofrequency-fields-on-the-emotional-behavior-and-spatial-memory-of-adolescent-mice
#6
Jun-Ping Zhang, Ke-Ying Zhang, Ling Guo, Qi-Liang Chen, Peng Gao, Tian Wang, Jing Li, Guo-Zhen Guo, Gui-Rong Ding
The increasing use of mobile phones by teenagers has raised concern about the cognitive effects of radiofrequency (RF) fields. In this study, we investigated the effects of 4-week exposure to a 1.8 GHz RF field on the emotional behavior and spatial memory of adolescent male mice. Anxiety-like behavior was evaluated by open field test (OFT) and elevated plus maze (EPM) test, while depression-like behavior was evaluated by sucrose preference test (SPT), tail suspension test (TST) and forced swim test (FST). The spatial learning and memory ability were evaluated by Morris water maze (MWM) experiments...
November 5, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/29105641/enhancement-of-memory-function-by-antioxidant-potential-of-nigella-sativa-l-oil-in-restrained-rats
#7
Sana Sadaf, Shaista Emad, Naveed Ali Siddiqui, Seemeen Ghafoor, Sarwat Yousuf, Bushra Jabeen, Saida Haider, Tahira Perveen
Stress is a vulnerable state to cellular homeostasis which leads to oxidative damage via free radical generation. The acute stress induces alteration in antioxidant enzyme activities to an extent which produce oxidative stress and causes certain pathological conditions. The use of Nigella sativa L. oil (NSO) in folk medicine has increased throughout the world for the prevention or treatment of various ailments because of potent antioxidant properties. In the present study, potential therapeutic effects of NSO on memory in both unrestrained and 2h restrained rats were observed...
September 2017: Pakistan Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/29099859/agomelatine-venlafaxine-and-running-exercise-effectively-prevent-anxiety-and-depression-like-behaviors-and-memory-impairment-in-restraint-stressed-rats
#8
Sarawut Lapmanee, Jantarima Charoenphandhu, Jarinthorn Teerapornpuntakit, Nateetip Krishnamra, Narattaphol Charoenphandhu
Several severe stressful situations, e.g., natural disaster, infectious disease out break, and mass casualty, are known to cause anxiety, depression and cognitive impairment, and preventive intervention for these stress complications is worth exploring. We have previously reported that the serotonin-norepinephrine-dopamine reuptake inhibitor, venlafaxine, as well as voluntary wheel running are effective in the treatment of anxiety- and depression-like behaviors in stressed rats. But whether they are able to prevent deleterious consequences of restraint stress in rats, such as anxiety/depression-like behaviors and memory impairment that occur afterward, was not known...
2017: PloS One
https://www.readbyqxmd.com/read/29099584/metal-nanowire-coated-metal-woven-mesh-for-high-performance-stretchable-transparent-electrodes
#9
Ji Hwan Cho, Dong Joo Kang, Nam-Su Jang, Kang-Hyun Kim, Phillip Won, Seung Hwan Ko, Jong-Man Kim
This work presents a new template-assisted fabrication method to obtain stretchable metal grids for high-performance stretchable transparent conducting electrodes (TCEs). Readily accessible metal woven mesh (MWM) is used as a template to make the fabrication process simple, cost-effective, reproducible, and potentially scalable by combining it with silver nanowire (AgNW) coating and elastomer filling processes. Stretchable TCEs are made with the AgNW-coated MWM and show remarkable optoelectronic performance with a sheet resistance of ∼3...
November 9, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/29091901/resistance-training-and-hawthorn-extract-ameliorate-cognitive-deficits-in-streptozotocin-induced-diabetic-rats
#10
Ebrahim Zarrinkalam, Kamal Ranjbar, Iraj Salehi, Nejat Kheiripour, Alireza Komaki
It has been shown that diabetic rats display cognitive impairment. The aim of this study was to investigate the effects of resistance training and natural antioxidants on learning and memory in type 1 diabetic rats. For this purpose, fifty male Wistar rats were randomly divided into five groups: (i) Control (Con, n=10), (ii) Diabetic (D, n=10), (iii) Diabetic+Resistance training (DRT, n=10), (iv) Diabetic+natural antioxidants (DHE, n=10), and (v) Diabetic+Resistance training+ natural antioxidants (DRH, n=10)...
October 28, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29080716/postnatal-proteasome-inhibition-promotes-amyloid-%C3%AE-aggregation-in-hippocampus-and-impairs-spatial-learning-in-adult-mice
#11
Aditya Sunkaria, Aarti Yadav, Supriya Bhardwaj, Rajat Sandhir
Ubiquitin-proteasome system (UPS) has emerged as major molecular mechanism which modulates synaptic plasticity. However, very little is known about what happens if this system fails during postnatal brain development. In the present study, MG132 was administered intracerebroventricularly in BALB/c mice pups at postnatal day one (P1), a very crucial period for synaptogenesis. Both 20S proteasome and calpain activities were found to be reduced in the mid brain of MG132-administered pups after 24 h. Mice (P40) which received MG132 on P1 were subjected to Morris water maze (MWM) training...
October 26, 2017: Neuroscience
https://www.readbyqxmd.com/read/29075638/citalopram-ameliorates-impairments-in-spatial-memory-and-synaptic-plasticity-in-female-3xtgad-mice
#12
Zhang Wei, Guo Junhong, Niu Xiaoyuan, Wang Jie, Wang Zhaojun, Wu Meina, Yang Wei, Zhang Jun, Qi Jinshun
Alzheimer's disease (AD) is the primary cause of dementia. There is no effective treatment. Amyloid-β peptide (Aβ) plays an important role in the pathogenesis and thus strategies suppressing Aβ production and accumulation seem promising. Citalopram is an antidepressant drug and can decrease Aβ production and amyloid plaques in transgenic mice of AD and humans. Whether citalopram can ameliorate memory deficit was not known yet. We tested the effects of citalopram on behavioral performance and synaptic plasticity in female 3xTgAD mice, a well-characterized model of AD...
2017: BioMed Research International
https://www.readbyqxmd.com/read/29073581/effective-strategies-for-anode-surface-modification-for-power-harvesting-and-industrial-wastewater-treatment-using-microbial-fuel-cells
#13
Hend Omar Mohamed, Enas Taha Sayed, Hyunjin Cho, Mira Park, M Obaid, Hak-Yong Kim, Nasser A M Barakat
This study investigates three different strategies for anode surface treatment by doping superficial nitrogen groups on the anode surfaces of carbon cloth (CC) and carbon paper (CP). The chosen anodes were hydrothermally treated in the presence of an ammonia solution (AST), a mixture of nitric acid and sulfuric acid (AHT), and solid urea (UT) at 180 °C for 3 h. The utilized characterization techniques confirmed doping of nitrogen on the anode surfaces and a decrease in the oxygen-bonded carbon content. Furthermore, the results showed that the power and current densities were significantly affected by the surface modification techniques...
October 23, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/29071234/effects-of-herbal-compound-imod-on-behavior-and-expression-of-alzheimer-s-disease-related-genes-in-streptozotocin-rat-model-of-sporadic-alzheimer-s-disease
#14
Niloofar Bazazzadegan, Marzieh Dehghan Shasaltaneh, Kioomars Saliminejad, Koorosh Kamali, Mehdi Banan, Hamid Reza Khorram Khorshid
Purpose: Sporadic Alzheimer's disease (AD) accounts for over 95% of cases. Possible mechanisms of AD such as inflammation and oxidative stresses in the brain motivate researchers to follow many therapies which would be effective, especially in the early stages of the disease. IMOD, the herbal extract of R. Canina, T. Vulgare and U. Dioica plant species enriched with selenium, has anti-inflammatory, immunoregulatory and protective effects against oxidative stress. Methods: In this study three AD-related genes, DAXX, NFκβ and VEGF, were chosen as candidate to investigate the neuroprotective effect of the extract by comparing their expression levels in the hippocampus of rat model of sporadic AD, using qPCR in the herbal-treated and control groups...
September 2017: Advanced Pharmaceutical Bulletin
https://www.readbyqxmd.com/read/29054803/comparison-of-short-term-effects-of-mobilization-with-movement-and-kinesiotaping-on-pain-function-and-balance-in-patellofemoral-pain
#15
Serdar Demirci, Gizem Irem Kinikli, Michael J Callaghan, Volga Bayrakci Tunay
OBJECTIVE: The aim of this study was to compare the short-term effects of Mobilization with movement (MWM) and Kinesiotaping (KT) on patients with patellofemoral pain (PFP) respect to pain, function and balance. METHODS: Thirty-five female patients diagnosed with unilateral PFP were assigned into 2 groups. The first group (n = 18) received two techniques of MWM intervention (Straight Leg-Raise with Traction and Tibial Gliding) while KT was applied to the other group (n = 17)...
October 17, 2017: Acta Orthopaedica et Traumatologica Turcica
https://www.readbyqxmd.com/read/29053241/temperature-dependent-thermal-boundary-conductance-of-monolayer-mos2-by-raman-thermometry
#16
Eilam Yalon, Özgür Burak Aslan, Kirby K H Smithe, Connor J McClellan, Saurabh V Suryavanshi, Feng Xiong, Aditya Sood, Christopher M Neumann, Xiaoqing Xu, Kenneth E Goodson, Tony F Heinz, Eric Pop
The electrical and thermal behavior of nanoscale devices based on two-dimensional (2D) materials is often limited by their contacts and interfaces. Here we report the temperature-dependent thermal boundary conductance (TBC) of monolayer MoS2 with AlN and SiO2, using Raman thermometry with laser-induced heating. The temperature-dependent optical absorption of the 2D material is crucial in such experiments, which we characterize here for the first time above room temperature. We obtain TBC ~ 15 MWm(-2)K(-1) near room temperature, increasing as ~ T(0...
October 20, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/29053203/preoperative-weight-loss-with-glp-1-receptor-agonist-treatment-predicts-greater-weight-loss-achieved-by-the-combination-of-medical-weight-management-and-bariatric-surgery-in-patients-with-type-2-diabetes-a-longitudinal-analysis
#17
Tien Tang, Sally Abbott, Carel W le Roux, Violet Wilson, Rishi Singhal, Srikanth Bellary, Abd Tahrani
We examined the relationship between weight changes following preoperative glucagon-like peptide-1 receptor agonist (GLP-1 RA) and weight changes from the start of medical weight management (MWM) till 12 months after bariatric surgery in patients with Type 2 diabetes in a retrospective cohort study. Forty-five patients (64.4% women, median age 49 (IQR 45-60) years) were included. The median weight loss from start of MWM until 12 months post-surgery was 17.9% (13.0%-29.3%). GLP-1 RA during MWM resulted in 5...
October 20, 2017: Diabetes, Obesity & Metabolism
https://www.readbyqxmd.com/read/29034441/the-oral-pretreatment-of-glycyrrhizin-prevents-surgery-induced-cognitive-impairment-in-aged-mice-by-reducing-neuroinflammation-and-alzheimer-s-related-pathology-via-hmgb1-inhibition
#18
Zhong-Hong Kong, Xin Chen, Hui-Po Hua, Liang Liang, Long-Juan Liu
Neuroinflammation and Alzheimer's-related pathology play essential roles in postoperative cognitive dysfunction (POCD). High-mobility group box 1 (HMGB1) is well known as a pivotal mediator in neuroinflammation, and its associations with Alzheimer's-related pathology and POCD have been also revealed. Glycyrrhizin is a nature inhibitor of HMGB1 and is reported with neuroprotective effects through oral administration. Therefore, the present study aims to test the hypothesis that the oral pretreatment of glycyrrhizin prevents POCD by inhibiting HMGB1-induced neuroinflammation and Alzheimer's-related pathology in aged mice...
October 16, 2017: Journal of Molecular Neuroscience: MN
https://www.readbyqxmd.com/read/29027091/walnut-supplementation-reverses-the-scopolamine-induced-memory-impairment-by-restoration-of-cholinergic-function-via-mitigating-oxidative-stress-in-rats-a-potential-therapeutic-intervention-for-age-related-neurodegenerative-disorders
#19
Saida Haider, Zehra Batool, Saara Ahmad, Rafat Ali Siddiqui, Darakhshan Jabeen Haleem
The brain is highly susceptible to the damaging effects of oxidative reactive species. The free radicals which are produced as a consequence of aerobic respiration can cause cumulative oxygen damage which may lead to age-related neurodegeneration. Scopolamine, the anti-muscarinic agent induces amnesia and oxidative stress similar to that observed in the older age. Studies suggest that antioxidants derived from plant products may provide protection against oxidative stress. Therefore, the present study was designed to investigate the attenuation of scopolamine-induced memory impairment and oxidative stress by walnut supplementation in rats...
October 12, 2017: Metabolic Brain Disease
https://www.readbyqxmd.com/read/28993949/poly-n-methylated-a%C3%AE-peptide-c-terminal-fragments-meptides-reverse-the-deleterious-effects-of-amyloid-%C3%AE-in-rats
#20
Siya G Sibiya, Musa V Mbandla, Thavi Govender, Adeola Shobo, William M U Daniels
Alzheimer's disease (AD) is characterized by extracellular deposition of amyloid-β (Aβ) plaques. These protein deposits impair synaptic plasticity thereby producing a progressive decline in cognitive function. Current therapies are merely palliative and only slow cognitive decline. Poly-N-methylated Aβ-Peptide C-Terminal Fragments (MEPTIDES) were recently shown to reduce Aβ toxicity in vitro and in Drosophila melanogaster, however whether these novel compounds are effective in inhibiting Aβ-induced toxicity in the mammalian brain remains unclear...
October 9, 2017: Metabolic Brain Disease
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