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https://www.readbyqxmd.com/read/29332737/effect-of-a-lateral-glide-mobilisation-with-movement-of-the-hip-on-vibration-threshold-in-healthy-volunteers
#1
Darren A Smith, Jacob Saranga, Andrew Pritchard, Nikolaos A Kommatas, Shinu Kovelal Punnoose, Supriya Tukaram Kale
BACKGROUND: Mulligan's mobilisation-with-movement (MWM) techniques are proposed to achieve their clinical benefit via neurophysiological mechanisms. However, previous research has focussed on responses in the sympathetic nervous system only, and is not conclusive. An alternative measure of neurophysiological response to MWM is required to support or refute this mechanism of action. Recently, vibration threshold (VT) has been used to quantify changes in the sensory nervous system in patients experiencing musculoskeletal pain...
January 2018: Journal of Bodywork and Movement Therapies
https://www.readbyqxmd.com/read/29329678/apelin-13-ameliorates-cognitive-impairments-in-6-hydroxydopamine-induced-substantia-nigra-lesion-in-rats
#2
Elham Haghparast, Saeed Esmaeili-Mahani, Mehdi Abbasnejad, Vahid Sheibani
Although Parkinson's disease (PD) is well known with its motor deficits, the patients often suffer from cognitive dysfunction. Apelin, as the endogenous ligand of the APJ receptor, is found in several brain regions such as substantia nigra and mesolimbic pathway. However, the role of apelin in cognition and cognitive disorders has not been fully clarified. In this study the effects of apelin-13 were investigated on cognitive disorders in rat Parkinsonism experimental model. 6-hydroxydopamine (6-OHDA) was administrated into the substantia nigra...
January 5, 2018: Neuropeptides
https://www.readbyqxmd.com/read/29327228/postoperative-intermittent-fasting-prevents-hippocampal-oxidative-stress-and-memory-deficits-in-a-rat-model-of-chronic-cerebral-hypoperfusion
#3
Yuan Hu, Miao Zhang, Yunyun Chen, Ying Yang, Jun-Jian Zhang
PURPOSE: Whether intermittent fasting (IF) treatment after stroke can prevent its long-term detrimental effects remains unknown. Here, we investigate the effects of postoperative IF on cognitive deficits and its underlying mechanisms in a permanent two-vessel occlusion (2VO) vascular dementia rat model. METHODS: Rats were subjected to either IF or ad libitum feeding 1 week after 2VO surgery. The cognition of rats was assessed using the novel object recognition (NOR) task and Morris water maze (MWM) 8 weeks after surgery...
January 11, 2018: European Journal of Nutrition
https://www.readbyqxmd.com/read/29327125/icariin-improves-cognitive-impairment-after-traumatic-brain-injury-by-enhancing-hippocampal-acetylation
#4
Zi-Gang Zhang, Xin Wang, Jin-Hai Zai, Cai-Hua Sun, Bing-Chun Yan
OBJECTIVE: To examine the effect of icariin (ICA) on the cognitive impairment induced by traumatic brain injury (TBI) in mice and the underlying mechanisms related to changes in hippocampal acetylation level. METHODS: The modifified free-fall method was used to establish the TBI mouse model. Mice with post-TBI cognitive impairment were randomly divided into 3 groups using the randomised block method (n=7): TBI (vehicle-treated), low-dose (75 mg/kg) and high-dose (150 mg/kg) of ICA groups...
January 9, 2018: Chinese Journal of Integrative Medicine
https://www.readbyqxmd.com/read/29325995/acetylshikonin-from-zicao-attenuates-cognitive-impairment-and-hippocampus-senescence-in-d-galactose-induced-aging-mouse-model-via-upregulating-the-expression-of-sirt1
#5
Qisen Li, Jiacheng Zeng, Meiling Su, Yu He, Banghao Zhu
Zicao acts as a pleiotropic medicine in various diseases due to its particular pharmacological properties, including anti-inflammatory, anti-tumor, anti-oxidative, and wound healing effects. However, few studies have focused on the function in neurodegenerative diseases of Zicao. In this study, we investigated the neuroprotective effect of Acetylshikonin (AS) from Zicao on the hippocampus of the D-galactose (D-gal)-induced sub-acute aging mouse model of Alzheimer's disease (AD). The aging model was established in male Kunming mice by subcutaneous injection of D-gal (150 mg/kg/d) for 60 days, and the mice were given AS (270, 540 and 1080 mg/kg/d) or distilled water intragastrically for 30 days after 30 days of D-gal injection...
January 8, 2018: Brain Research Bulletin
https://www.readbyqxmd.com/read/29322009/improvement-of-spatial-learning-and-memory-cortical-gyrification-patterns-and-brain-oxidative-stress-markers-in-diabetic-rats-treated-with-ficus-deltoidea-leaf-extract-and-vitexin
#6
S Nurdiana, Y M Goh, A Hafandi, S M Dom, A Nur Syimal'ain, N M Noor Syaffinaz, M Ebrahimi
Despite the fact that Ficus deltoidea and vitexin played important roles in controlling hyperglycemia, an effective mitigation strategy dealing with cognitive deficit observed in diabetes, little is known about its neuroprotective effects. The study is aimed to determine changes in behavioral, gyrification patterns and brain oxidative stress markers in streptozotocin (STZ)-induced diabetic rats following F. deltoidea and vitexin treatments. Diabetic rats were treated orally with metformin, methanolic extract of F...
January 2018: Journal of Traditional and Complementary Medicine
https://www.readbyqxmd.com/read/29290948/puerarin-attenuates-locomotor-and-cognitive-deficits-as-well-as-hippocampal-neuronal-injury-through-the-pi3k-akt1-gsk-3%C3%AE-signaling-pathway-in-an-in-vivo-model-of-cerebral-ischemia
#7
Jinhao Tao, Yuehua Cui, Yu Duan, Nan Zhang, Congmin Wang, Fayong Zhang
Ischemic stroke causes irreversible damage to the brain. The hippocampus is a vulnerable region and plays an important role in cognition and locomotor activity. Puerarin is a phytoestrogen that has beneficial effects in treating neurological disorders. How puerarin protects against hippocampal injury and its molecular mechanisms remain to be elucidated. Transient global brain ischemia was induced by 4-vessel occlusion in adult male Sprague-Dawley rats. The rats were pretreated with puerarin alone or together with LY294002 (an PI3K inhibitor) before ischemia/reperfusion (I/R)...
December 5, 2017: Oncotarget
https://www.readbyqxmd.com/read/29290043/the-effects-of-vitamin-e-on-brain-derived-neurotrophic-factor-tissues-oxidative-damage-and-learning-and-memory-of-juvenile-hypothyroid-rats
#8
Yousef Baghcheghi, Farimah Beheshti, Mohammad Naser Shafei, Hossein Salmani, Hamid Reza Sadeghnia, Mohammad Soukhtanloo, Akbar Anaeigoudari, Mahmoud Hosseini
The effects of vitamin E (Vit E) on brain derived neurotrophic factor (BDNF) and brain tissues oxidative damage as well as on learning and memory impairments in juvenile hypothyroid rats were examined. The rats were grouped as: (1) Control; (2) Propylthiouracil (PTU); (3) PTU-Vit E and (4) Vit E. PTU was added to their drinking water (0.05%) during 6 weeks. Vit E (20 mg/kg) was daily injected (IP). Morris water maze (MWM) and passive avoidance (PA) were carried out. The animals were deeply anesthetized and the brain tissues were removed for biochemical measurements...
December 30, 2017: Metabolic Brain Disease
https://www.readbyqxmd.com/read/29289300/novel-near-infrared-spectrum-analysis-tool-synergy-adaptive-moving-window-model-based-on-immune-clone-algorithm
#9
Shenghao Wang, Yuyan Zhang, Fuyi Cao, Zhenying Pei, Xuewei Gao, Xu Zhang, Yong Zhao
This paper presents a novel spectrum analysis tool named synergy adaptive moving window modeling based on immune clone algorithm (SA-MWM-ICA) considering the tedious and inconvenient labor involved in the selection of pre-processing methods and spectral variables by prior experience. In this work, immune clone algorithm is first introduced into the spectrum analysis field as a new optimization strategy, covering the shortage of the relative traditional methods. Based on the working principle of the human immune system, the performance of the quantitative model is regarded as antigen, and a special vector corresponding to the above mentioned antigen is regarded as antibody...
February 13, 2018: Analytica Chimica Acta
https://www.readbyqxmd.com/read/29288735/myelin-changes-at-the-early-stage-of-5xfad-mice
#10
Lihua Gu, Di Wu, Xiang Tang, Xinyang Qi, Xiaoli Li, Feng Bai, Xiaochun Chen, Qingguo Ren, Zhijun Zhang
Previous studies have demonstrated myelin deficits in Alzheimer's disease (AD). However, it is still unclear whether myelin deficits occur at early stage of AD. Our study aimed to investigate myelin deficits in 5XFAD mice dynamically in different cognition-associated brain regions at early stage of AD. Transmission electron microscopy (TEM) was applied to detect myelin changes in late-myelinating regions such as prelimbic area (PrL), retrosplenial granular cortex (Rsg), field CA1 of hippocampus (CA1) and entorhinal cortex (ERC) respectively at different stages (1, 2, 3 and 5 months of age) in 5XFAD mouse model...
December 27, 2017: Brain Research Bulletin
https://www.readbyqxmd.com/read/29287782/naringenin-induced-enhanced-antioxidant-defence-system-meliorates-cholinergic-neurotransmission-and-consolidates-memory-in-male-rats
#11
Laraib Liaquat, Zehra Batool, Sadia Sadir, Sahar Rafiq, SidrahShahzad, Tahira Perveen, Saida Haider
AIMS: Free radical mediated neurotoxicity is a leading cause of neurodegenerative disorders. Neurodegeneration due to oxidative stress can produce cognitive dysfunctions. Flavonoids and curcuminoids are naturally occurring polyphenolic compounds that display a variety of therapeutic importance against oxidative stress. MAIN METHODS: This study was designed to assess potential role of polyphenolic compounds in neurocognitive functions and prevention against oxidative stress...
December 26, 2017: Life Sciences
https://www.readbyqxmd.com/read/29277879/trigonelline-insulates-against-oxidative-stress-proinflammatory-cytokines-and-restores-bdnf-levels-in-lipopolysaccharide-induced-cognitive-impairment-in-adult-mice
#12
Amrita A Chowdhury, Nitin B Gawali, Renuka Munshi, Archana R Juvekar
Neuroinflammation is said to play a pivotal role in the pathogenesis of neurodegenerative disorders such as Alzheimer's disease (AD). Trigonelline (TRG) is a naturally occurring alkaloid, commonly isolated from fenugreek and coffee beans. In the present study, we investigated whether TRG exerts neuroprotective action against LPS mediated cognitive impairment. Mice pretreated with TRG (50 and 100 mg/kg po) were administered with LPS (250 μg/kg ip) for 7 days. Memory was assessed in the Morris water maze (MWM) and Y maze...
December 26, 2017: Metabolic Brain Disease
https://www.readbyqxmd.com/read/29276216/malva-sylvestris-attenuates-cognitive-deficits-in-a-repetitive-mild-traumatic-brain-injury-rat-model-by-reducing-neuronal-degeneration-and-astrocytosis-in-the-hippocampus
#13
Hailin Qin, Jie Qin, Junmin Hu, He Huang, Lianting Ma
BACKGROUND The aim of our study was to evaluate the effect of Malva sylvestris (MS) on cognitive dysfunction in a repetitive mild traumatic brain injury (MTBI). MATERIAL AND METHODS MTBI was induced in all the study animals by hitting a metallic pendulum near the parietal-occipital area of the skull three times a day for ten days. Animals were treated with MS (250 mg/kg and 500 mg/kg) intragastrically per day for seven consecutive days. Cognitive function was estimated by the Morris water maze (MWM) method...
December 25, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/29274871/glucocorticoid-receptor-activation-selectively-influence-performance-of-wistar-rats-in-y-maze
#14
Amin Abdulbasit, Fii Stephen Michael, Amusa Shukurat Onaopemipo, Alli-Oluwafuyi Abdulmusawwir, Imam Aminu, Asogwa Nnaemeka Tobechukwu, Abdulmajeed Wahab Imam, Adeyanju Oluwaseun Aremu, Olaseinde Folajimi, Abolarinwa Bilikis Aderonke, Ibrahim Ridwan Babatunde, Owoyele Victor Bamidele
Glucocorticoid receptors (GR) are ubiquitously expressed in metazoans. Different and contrasting phenotypes have been reported upon their activation. This study investigated the behavioral phenotypes characteristic of GR stimulation in male Wistar rats. Rats in each of the four groups of rats received one of the following treatments: distilled water (control) or one of three doses of dexamethasone (treatment) injected intraperitoneally for 7 days. The Rats were afterwards subjected to the Y maze, the elevated plus maze (EPM), the Morris water maze (MWM), and the novel object recognition (NOR) test...
December 9, 2017: Pathophysiology: the Official Journal of the International Society for Pathophysiology
https://www.readbyqxmd.com/read/29259353/effects-of-extremely-low-frequency-electromagnetic-fields-on-neurogenesis-and-cognitive-behavior-in-an-experimental-model-of-hippocampal-injury
#15
Mohammad Hassan Sakhaie, Mansoureh Soleimani, Bagher Pourheydar, Zahra Majd, Pezhman Atefimanesh, Sara Soleimani Asl, Mehdi Mehdizadeh
Exposure to extremely low-frequency electromagnetic fields may induce constant modulation in neuronal plasticity. In recent years, tremendous efforts have been made to design a suitable strategy for enhancing adult neurogenesis, which seems to be deterred due to brain senescence and several neurodegenerative diseases. In this study, we evaluated the effects of ELF-EMF on neurogenesis and memory, following treatment with trimethyltin chloride (TMT) as a neurotoxicant. The mice in all groups (n = 56) were injected with BrdU during the experiment for seven consecutive days to label newborn cells...
2017: Behavioural Neurology
https://www.readbyqxmd.com/read/29251803/light-modulates-hippocampal-function-and-spatial-learning-in-a-diurnal-rodent-species-a-study-using-male-nile-grass-rat-arvicanthis-niloticus
#16
Joel E Soler, Alfred J Robison, Antonio A Núñez, Lily Yan
The effects of light on cognitive function have been well-documented in human studies, with brighter illumination improving cognitive performance in school children, healthy adults and patients in early stages of dementia. However, the underlying neural mechanisms are not well understood. The present study examined how ambient light affects hippocampal function using the diurnal Nile grass rats (Arvicanthis niloticus) as the animal model. Grass rats were housed in either a 12:12hr bright light-dark (brLD, 1000 lux) or dim light-dark (dimLD, 50 lux) cycle...
December 18, 2017: Hippocampus
https://www.readbyqxmd.com/read/29249964/blood-brain-barrier-dysfunction-precedes-cognitive-decline-and-neurodegeneration-in-diabetic-insulin-resistant-mouse-model-an-implication-for-causal-link
#17
Ryusuke Takechi, Virginie Lam, Emily Brook, Corey Giles, Nicholas Fimognari, Armin Mooranian, Hani Al-Salami, Stephanie H Coulson, Michael Nesbit, John C L Mamo
Diabetic insulin resistance and pro-diabetic diet are reported to increase dementia risk through unknown mechanisms. Emerging evidence suggests that the integrity of blood-brain barrier (BBB) is central to the onset and progression of neurodegeneration and cognitive impairment. Therefore, the current study investigated the effect of pro-diabetic diets on cognitive dysfunction in association to BBB integrity and its putative mechanisms. In C57BL/6J mice chronically ingested with a diet enriched in fat and fructose (HFF), Morris Water Maze (MWM) test indicated no significant cognitive decline after 4 weeks of HFF feeding compared to low-fat (LF) fed control...
2017: Frontiers in Aging Neuroscience
https://www.readbyqxmd.com/read/29248482/targeted-inhibition-of-rage-reduces-amyloid-%C3%AE-influx-across-the-blood-brain-barrier-and-improves-cognitive-deficits-in-db-db-mice
#18
Hao Wang, Fang Chen, Yi-Feng Du, Yan Long, Miranda N Reed, Mei Hu, Vishnu Suppiramaniam, Hao Hong, Su-Su Tang
AIMS: To investigate restorative effects of the receptor for advanced glycation end products (RAGE)-specific inhibitor FPS-ZM1 on abnormal amyloid (Aβ) influx across the blood brain-barrier (BBB) and cognitive deficits in db/db mice. METHODS: Aβ influx across the BBB was determined by intra-arterial infusion of 125I-Aβ1-40. Receptor for advanced glycation end products (RAGE), Aβ, NF-κB p65, caspase-3, Bax, Bcl-2, PSD-95 and synaptophysin were assayed by Western blot, immunohistochemistry or RT-PCR...
December 14, 2017: Neuropharmacology
https://www.readbyqxmd.com/read/29245987/hydrogen-sulfide-attenuates-chronic-restrain-stress-induced-cognitive-impairment-by-upreglulation-of-sirt1-in-hippocampus
#19
Xiao-Na Li, Lei Chen, Bang Luo, Xiang Li, Chun-Yan Wang, Wei Zou, Ping Zhang, Yong You, Xiao-Qing Tang
Chronic restraint stress (CRS) has detrimental effects on cognitive function. Hydrogen sulfide (H2S), as a neuromodulator, regulates learning and memory. Hippocampus is a key structure in learning and memory. Sirt1 (silence signal regulating factor 1) plays an important role in modulating cognitive function. Therefore, our present work was to investigate whether H2S meliorates CRS-induced damage in hippocampus and impairment in cognition, and further to explore whether the underlying mechanism is via upreglulating Sirt1...
November 21, 2017: Oncotarget
https://www.readbyqxmd.com/read/29241126/the-chronic-exposure-to-abamectin-causes-spatial-memory-deficit-and-depressive-behavior-in-mice
#20
Wellington Alves Mizael da Silva, Abraão Tiago Batista Guimarães, Mateus Flores Montalvão, Bruna de Oliveira Mendes, Aline Sueli de Lima Rodrigues, Guilherme Malafaia
It is known that abamectin (ABA), which is a component belonging to the group of avermectins, has been broadly used as biopesticide. Although its effect on non-target aquatic organisms is known, knowledge about its impacts on terrestrial animals such as mammals remains incipient. Thus, we aim at investigating the effects (phycical and neural-behavioral) from the chronic exposure (90 days) to ABA (1/10 of LD50) on Swiss and C57Bl/6J mice from both sexes. Accordingly, at the end of the experimental period the animals were subjected to the following tests: Novel Object Recognition Test (NORT), Morris Water Maze (MWM), Tail Suspension Test (TST), and Forced Swimming Test (FST)...
December 7, 2017: Chemosphere
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