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https://www.readbyqxmd.com/read/29441990/the-autophagy-inhibitor-3-methyladenine-restores-sevoflurane-anesthesiainduced-cognitive-dysfunction-and-neurons-apoptosis
#1
Xiaoyu Xiao, Yingxian Zhu, Juyuan Bu, Guowei Li, Zibin Liang, Lukun Yang, Bingzong Hou
This study was designed to explore the effect of 3-methyladenine (3-MA) on sevoflurane anesthesia-induced cognitive dysfunction. A total of 60 C57BL/6 (5-8 months old) mice were randomly arranged into 3 groups: Control, sevoflurane (Sev) and Sev+3-MA group with 3-MA administration was performed during Sev administration. Morris water maze and Y-maze test were performed to examine the behavioral disorders. Moreover, hippocampal neuronal cell apoptosis and expression of autophagy related genes were detected. Sevoflurane induced cognitive dysfunction in mice showing significant longer escape latency, lower number of correct response, higher apoptotic neurons, and higher expression of autophagy related genes...
April 1, 2017: Die Pharmazie
https://www.readbyqxmd.com/read/29437010/neuronal-expression-of-junctional-adhesion-molecule-c-is-essential-for-retinal-thickness-and-photoreceptor-survival
#2
Y Li, F Zhang, W Lu, X Li
BACKGROUND: Photoreceptor cell death is a key pathology of retinal degeneration diseases. To date, the molecular mechanisms for this pathological process remain largely unclear. Junctional adhesion molecule-c (Jam-c) has been shown to play important roles in different biological events. However, its effect on retinal neuronal cells is unknown. OBJECTIVE: To determine the effect of Jam-c on adult mouse eyes, particularly, on retinal structure, vasculature and photoreceptor cells, in order to explore potential important target molecules for ocular diseases...
February 12, 2018: Current Molecular Medicine
https://www.readbyqxmd.com/read/29421245/effect-of-glucagon-like-peptide-1-analogue-exendin-4-on-cognitive-functions-in-type-2-diabetes-mellitus-possible-modulation-of-brain-derived-neurotrophic-factor-and-brain-visfatin
#3
O M Abdelwahed, O M Tork, M M Gamal El Din, L Rashed, M Zickri
BACKGROUND: Brain derived neurotrophic factor (BDNF) is one of the most essential neurotrophic factors in the brain. BDNF is involved in learning, memory and locomotion suggesting it as a target in type 2 diabetes mellitus (T2DM) associated cognitive changes. Visfatin; an adipokine discovered to be expressed in the brain; was found to have multiple effects including its participation in keeping energy supply to the cell and is consequentially involved in cell survival. Its role in cognitive functions in T2DM was not studied before...
February 5, 2018: Brain Research Bulletin
https://www.readbyqxmd.com/read/29392750/nasal-obstruction-during-adolescence-induces-memory-learning-impairments-associated-with-bdnf-trkb-signaling-pathway-hypofunction-and-high-corticosterone-levels
#4
Takuya Ogawa, Hidemasa Okihara, Satoshi Kokai, Yasunori Abe, Uchima Koecklin Karin Harumi, Mio Makiguchi, Chiho Kato, Tadachika Yabushita, Makoto Michikawa, Takashi Ono
The hippocampus is an important brain region involved in memory and learning. Brain-derived neurotrophic factor (BDNF), tyrosine kinase receptor B (TrkB), and phospho-p44/p42 mitogen-activated protein kinase (MAPK) are known to contribute to hippocampal memory/learning. The present study aimed to clarify the effects of nasal obstruction during the growth period on memory/learning in an animal model, using combined behavioral, biochemical, and histological approaches. Male BALB/C mice underwent unilateral nasal obstruction (UNO) by cauterization at 8 days of age and were subjected to Y-maze and passive avoidance tests at 15 weeks of age...
February 2, 2018: Journal of Neuroscience Research
https://www.readbyqxmd.com/read/29372644/quantitative-assessment-of-demyelination-in-ischemic-stroke-in%C3%A2-vivo-using-macromolecular-proton-fraction-mapping
#5
Marina Y Khodanovich, Alena A Kisel, Andrey E Akulov, Dmitriy N Atochin, Marina S Kudabaeva, Valentina Y Glazacheva, Michael V Svetlik, Yana A Medvednikova, Lilia R Mustafina, Vasily L Yarnykh
A recent MRI method, fast macromolecular proton fraction (MPF) mapping, was used to quantify demyelination in the transient middle cerebral artery occlusion (MCAO) rat stroke model. MPF and other quantitative MRI parameters (T1, T2, proton density, and apparent diffusion coefficient) were compared with histological and immunohistochemical markers of demyelination (Luxol Fast Blue stain, (LFB)), neuronal loss (NeuN immunofluorescence), axonal loss (Bielschowsky stain), and inflammation (Iba1 immunofluorescence) in three animal groups ( n = 5 per group) on the 1st, 3rd, and 10th day after MCAO...
January 1, 2018: Journal of Cerebral Blood Flow and Metabolism
https://www.readbyqxmd.com/read/29343040/-effect-of-picroside-%C3%A2-on-the-expression-of-mitochondrial-vdac1-after-cerebral-ischemia-reperfusion-in-rats
#6
S Li, T T Wang, L Zhai, W W Deng, Y L Guo, J X Jiang
Objective: To explore the effect of picroside Ⅱ on the expression of mitochondrial voltage-dependent anion channel 1 (VDAC1) in rats after cerebral ischemiareperfusion. Methods: A total of 70 Wistar rats models with middle cerebral artery occlusionreperfusion (MCAO/R) were randomly divided into the sham group, model group, picroside (Picr) group, ruthenium red (RuR) group, RuR+ Picr group, Spermine (Sper) group, Sper+ Picr group (n=10 per group). Modified neurological severity scale (mNSS) was used to evaluated the neurobehavioral function, the expression of reactive oxygen species (ROS) in brain tissues were measured by enzyme-linked immunosorbent assay (ELISA), the morphology of brain tissues was observed by hematoxylin-eosin (HE) staining, the apoptotic cells were counted by terminal deoxynucleotidyl transferase dUTP nick end labeling assay (TUNEL), and the expressions of VDAC1 and endonuclease G (EndoG) were determined by immunohistochemical assay and Western blot...
January 9, 2018: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/29343030/-expression-of-high-mobility-group-box-%C3%A2-and-n-methyl-d-aspartate-receptor-in-status-epilepticus
#7
D Wu, X Han, J Feng, Y J Song
Objective: To investigate the expression changes of high mobility group box-1 (HMGB1) and the 2B receptor of N- methyl -D- aspartate receptor (NR2B) in status epilepticus (SE). Methods: (1) Primary hippocampal neurons from SD rats with 16 to 18 days of fetal age were cultured in vitro for 7 days, and exposed to Mg(2+) free media for 3 hours. Those cultured neurons were randomly divided into control group and intermittent hypoxia group. (2) SD rats with similar weight were selected and randomly divided into control group and SE model group...
January 2, 2018: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/29334662/aqueous-extracts-of-two-tropical-ethnobotanicals-tetrapleura-tetraptera-and-quassia-undulata-improved-spatial-and-non-spatial-working-memories-in-scopolamine-induced-amnesic-rats-influence-of-neuronal-cholinergic-and-antioxidant-systems
#8
Veronica O Odubanjo, Emmanuel O Ibukun, Ganiyu Oboh, Stephen A Adefegha
BACKGROUND: Tetrapleura tetraptera (TT) and Quassia undulata (QU) are two predominant tropical ethnobotanicals with various medicinal values but are commonly used in folklore for the treatment of mental illness without justifiable mechanisms of action. AIM OF THE STUDY: To investigate the effects of aqueous extracts from TT fruits and QU leaves on the spatial and non-spatial working memory, antioxidant status and activities of neuronal marker enzymes of scopolamine-induced amnesic rats and thus, understand the possible mechanism of action of these plants...
January 11, 2018: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29326137/expression-changes-in-lactate-and-glucose-metabolism-and-associated-transporters-in-basal-ganglia-following-hypoxic-ischemic-reperfusion-injury-in-piglets
#9
Y Zheng, X-M Wang
BACKGROUND AND PURPOSE: The neonatal brain has active energy metabolism, and glucose oxidation is the major energy source of brain tissue. Lactate is produced by astrocytes and released to neurons. In the central nervous system, lactate is transported between neurons and astrocytes via the astrocyte-neuron lactate shuttle. The aim of this study was to investigate the regulatory mechanisms of energy metabolism in neurons and astrocytes in the basal ganglia of a neonatal hypoxic-ischemic brain injury piglet model...
January 11, 2018: AJNR. American Journal of Neuroradiology
https://www.readbyqxmd.com/read/29288503/neurodegenerative-processes-in-temporal-lobe-epilepsy-with-hippocampal-sclerosis-clinical-pathological-and-neuroimaging-evidence
#10
X Y Tai, B Bernhardt, M Thom, P Thompson, S Baxendale, M Koepp, N Bernasconi
Cognitive decline is increasingly described as a co-morbidity of temporal lobe epilepsy (TLE). Mechanisms underlying cognitive impairment are not fully understood despite examining clinical factors, such as seizure frequency, and cellular mechanisms of excitotoxicity. We review the neuropsychometry evidence for progressive cognitive decline and examine the pathology and neuroimaging evidence supporting a neurodegenerative process in hippocampal sclerosis (HS)-related TLE. Accelerated cognitive decline is described in groups of adult HS-related TLE patients...
December 30, 2017: Neuropathology and Applied Neurobiology
https://www.readbyqxmd.com/read/29284109/morin-hydrate-mitigates-rapid-eye-movement-sleep-deprivation-induced-neurobehavioural-impairments-and-loss-of-viable-neurons-in-the-hippocampus-of-mice
#11
Elizabeth T Olonode, Adegbuyi O Aderibigbe, Olusegun A Adeoluwa, Anthony T Eduviere, Benneth Ben-Azu
Rapid eye movement sleep deprivation distorts the body's homeostasis and results in oxidative breakdown which may be responsible for a variety of neurological disorders. Some naturally occurring compounds of plant origin with antioxidant and neuroprotective properties are known to attenuate the detrimental effects of REM sleep deprivation. Morin hydrate, a flavonoid from Mulberry has demonstrated antioxidant and neuroprotective activities but its effect in sleep disturbed mice is unknown. The study was designed to explore the neuroprotective effect of Morin hydrate on 48 hr...
December 25, 2017: Behavioural Brain Research
https://www.readbyqxmd.com/read/29280389/the-effects-of-black-garlic-on-the-working-memory-and-pyramidal-cell-number-of-medial-prefrontal-cortex-of-rats-exposed-to-monosodium-glutamate
#12
Titis Nurmasitoh, Dwi Cahyani Ratna Sari, Ginus Partadiredja
Monosodium glutamate-induced exitotoxicity causes oxidative stress in many brain areas, including the medial prefrontal cortex. The ethanolic garlic (Allium sativum) extract is considered as a neuroprotective substance. The present study aimed at investigating the effects of the ethanolic fermented garlic extract on the working memory and the pyramidal cell number of the medial prefrontal cortex of adolescent male Wistar rats exposed to monosodium glutamate (MSG). Twenty-five rats were randomly divided into five groups...
December 27, 2017: Drug and Chemical Toxicology
https://www.readbyqxmd.com/read/29275062/intravenous-infusion-of-bone-marrow-derived-mesenchymal-stem-cells-reduces-erectile-dysfunction-following-cavernous-nerve-injury-in-rats
#13
Yohei Matsuda, Masanori Sasaki, Yuko Kataoka-Sasaki, Akio Takayanagi, Ko Kobayashi, Shinichi Oka, Masahito Nakazaki, Naoya Masumori, Jeffery D Kocsis, Osamu Honmou
INTRODUCTION: Intravenous preload (delivered before cavernous nerve [CN] injury) of bone marrow-derived mesenchymal stem cells (MSCs) can prevent or decrease postoperative erectile dysfunction (J Sex Med 2015;12:1713-1721). In the present study, the potential therapeutic effects of intravenously administered MSCs on postoperative erectile dysfunction were evaluated in a rat model of CN injury. METHODS: Male Sprague-Dawley rats were randomized into 2 groups after electric CN injury...
December 20, 2017: Sexual Medicine
https://www.readbyqxmd.com/read/29273807/protein-altering-variants-associated-with-body-mass-index-implicate-pathways-that-control-energy-intake-and-expenditure-in-obesity
#14
Valérie Turcot, Yingchang Lu, Heather M Highland, Claudia Schurmann, Anne E Justice, Rebecca S Fine, Jonathan P Bradfield, Tõnu Esko, Ayush Giri, Mariaelisa Graff, Xiuqing Guo, Audrey E Hendricks, Tugce Karaderi, Adelheid Lempradl, Adam E Locke, Anubha Mahajan, Eirini Marouli, Suthesh Sivapalaratnam, Kristin L Young, Tamuno Alfred, Mary F Feitosa, Nicholas G D Masca, Alisa K Manning, Carolina Medina-Gomez, Poorva Mudgal, Maggie C Y Ng, Alex P Reiner, Sailaja Vedantam, Sara M Willems, Thomas W Winkler, Gonçalo Abecasis, Katja K Aben, Dewan S Alam, Sameer E Alharthi, Matthew Allison, Philippe Amouyel, Folkert W Asselbergs, Paul L Auer, Beverley Balkau, Lia E Bang, Inês Barroso, Lisa Bastarache, Marianne Benn, Sven Bergmann, Lawrence F Bielak, Matthias Blüher, Michael Boehnke, Heiner Boeing, Eric Boerwinkle, Carsten A Böger, Jette Bork-Jensen, Michiel L Bots, Erwin P Bottinger, Donald W Bowden, Ivan Brandslund, Gerome Breen, Murray H Brilliant, Linda Broer, Marco Brumat, Amber A Burt, Adam S Butterworth, Peter T Campbell, Stefania Cappellani, David J Carey, Eulalia Catamo, Mark J Caulfield, John C Chambers, Daniel I Chasman, Yii-Der I Chen, Rajiv Chowdhury, Cramer Christensen, Audrey Y Chu, Massimiliano Cocca, Francis S Collins, James P Cook, Janie Corley, Jordi Corominas Galbany, Amanda J Cox, David S Crosslin, Gabriel Cuellar-Partida, Angela D'Eustacchio, John Danesh, Gail Davies, Paul I W Bakker, Mark C H Groot, Renée Mutsert, Ian J Deary, George Dedoussis, Ellen W Demerath, Martin Heijer, Anneke I Hollander, Hester M Ruijter, Joe G Dennis, Josh C Denny, Emanuele Angelantonio, Fotios Drenos, Mengmeng Du, Marie-Pierre Dubé, Alison M Dunning, Douglas F Easton, Todd L Edwards, David Ellinghaus, Patrick T Ellinor, Paul Elliott, Evangelos Evangelou, Aliki-Eleni Farmaki, I Sadaf Farooqi, Jessica D Faul, Sascha Fauser, Shuang Feng, Ele Ferrannini, Jean Ferrieres, Jose C Florez, Ian Ford, Myriam Fornage, Oscar H Franco, Andre Franke, Paul W Franks, Nele Friedrich, Ruth Frikke-Schmidt, Tessel E Galesloot, Wei Gan, Ilaria Gandin, Paolo Gasparini, Jane Gibson, Vilmantas Giedraitis, Anette P Gjesing, Penny Gordon-Larsen, Mathias Gorski, Hans-Jörgen Grabe, Struan F A Grant, Niels Grarup, Helen L Griffiths, Megan L Grove, Vilmundur Gudnason, Stefan Gustafsson, Jeff Haessler, Hakon Hakonarson, Anke R Hammerschlag, Torben Hansen, Kathleen Mullan Harris, Tamara B Harris, Andrew T Hattersley, Christian T Have, Caroline Hayward, Liang He, Nancy L Heard-Costa, Andrew C Heath, Iris M Heid, Øyvind Helgeland, Jussi Hernesniemi, Alex W Hewitt, Oddgeir L Holmen, G Kees Hovingh, Joanna M M Howson, Yao Hu, Paul L Huang, Jennifer E Huffman, M Arfan Ikram, Erik Ingelsson, Anne U Jackson, Jan-Håkan Jansson, Gail P Jarvik, Gorm B Jensen, Yucheng Jia, Stefan Johansson, Marit E Jørgensen, Torben Jørgensen, J Wouter Jukema, Bratati Kahali, René S Kahn, Mika Kähönen, Pia R Kamstrup, Stavroula Kanoni, Jaakko Kaprio, Maria Karaleftheri, Sharon L R Kardia, Fredrik Karpe, Sekar Kathiresan, Frank Kee, Lambertus A Kiemeney, Eric Kim, Hidetoshi Kitajima, Pirjo Komulainen, Jaspal S Kooner, Charles Kooperberg, Tellervo Korhonen, Peter Kovacs, Helena Kuivaniemi, Zoltán Kutalik, Kari Kuulasmaa, Johanna Kuusisto, Markku Laakso, Timo A Lakka, David Lamparter, Ethan M Lange, Leslie A Lange, Claudia Langenberg, Eric B Larson, Nanette R Lee, Terho Lehtimäki, Cora E Lewis, Huaixing Li, Jin Li, Ruifang Li-Gao, Honghuang Lin, Keng-Hung Lin, Li-An Lin, Xu Lin, Lars Lind, Jaana Lindström, Allan Linneberg, Ching-Ti Liu, Dajiang J Liu, Yongmei Liu, Ken S Lo, Artitaya Lophatananon, Andrew J Lotery, Anu Loukola, Jian'an Luan, Steven A Lubitz, Leo-Pekka Lyytikäinen, Satu Männistö, Gaëlle Marenne, Angela L Mazul, Mark I McCarthy, Roberta McKean-Cowdin, Sarah E Medland, Karina Meidtner, Lili Milani, Vanisha Mistry, Paul Mitchell, Karen L Mohlke, Leena Moilanen, Marie Moitry, Grant W Montgomery, Dennis O Mook-Kanamori, Carmel Moore, Trevor A Mori, Andrew D Morris, Andrew P Morris, Martina Müller-Nurasyid, Patricia B Munroe, Mike A Nalls, Narisu Narisu, Christopher P Nelson, Matt Neville, Sune F Nielsen, Kjell Nikus, Pål R Njølstad, Børge G Nordestgaard, Dale R Nyholt, Jeffrey R O'Connel, Michelle L O'Donoghue, Loes M Olde Loohuis, Roel A Ophoff, Katharine R Owen, Chris J Packard, Sandosh Padmanabhan, Colin N A Palmer, Nicholette D Palmer, Gerard Pasterkamp, Aniruddh P Patel, Alison Pattie, Oluf Pedersen, Peggy L Peissig, Gina M Peloso, Craig E Pennell, Markus Perola, James A Perry, John R B Perry, Tune H Pers, Thomas N Person, Annette Peters, Eva R B Petersen, Patricia A Peyser, Ailith Pirie, Ozren Polasek, Tinca J Polderman, Hannu Puolijoki, Olli T Raitakari, Asif Rasheed, Rainer Rauramaa, Dermot F Reilly, Frida Renström, Myriam Rheinberger, Paul M Ridker, John D Rioux, Manuel A Rivas, David J Roberts, Neil R Robertson, Antonietta Robino, Olov Rolandsson, Igor Rudan, Katherine S Ruth, Danish Saleheen, Veikko Salomaa, Nilesh J Samani, Yadav Sapkota, Naveed Sattar, Robert E Schoen, Pamela J Schreiner, Matthias B Schulze, Robert A Scott, Marcelo P Segura-Lepe, Svati H Shah, Wayne H-H Sheu, Xueling Sim, Andrew J Slater, Kerrin S Small, Albert V Smith, Lorraine Southam, Timothy D Spector, Elizabeth K Speliotes, John M Starr, Kari Stefansson, Valgerdur Steinthorsdottir, Kathleen E Stirrups, Konstantin Strauch, Heather M Stringham, Michael Stumvoll, Liang Sun, Praveen Surendran, Amy J Swift, Hayato Tada, Katherine E Tansey, Jean-Claude Tardif, Kent D Taylor, Alexander Teumer, Deborah J Thompson, Gudmar Thorleifsson, Unnur Thorsteinsdottir, Betina H Thuesen, Anke Tönjes, Gerard Tromp, Stella Trompet, Emmanouil Tsafantakis, Jaakko Tuomilehto, Anne Tybjaerg-Hansen, Jonathan P Tyrer, Rudolf Uher, André G Uitterlinden, Matti Uusitupa, Sander W Laan, Cornelia M Duijn, Nienke Leeuwen, Jessica van Setten, Mauno Vanhala, Anette Varbo, Tibor V Varga, Rohit Varma, Digna R Velez Edwards, Sita H Vermeulen, Giovanni Veronesi, Henrik Vestergaard, Veronique Vitart, Thomas F Vogt, Uwe Völker, Dragana Vuckovic, Lynne E Wagenknecht, Mark Walker, Lars Wallentin, Feijie Wang, Carol A Wang, Shuai Wang, Yiqin Wang, Erin B Ware, Nicholas J Wareham, Helen R Warren, Dawn M Waterworth, Jennifer Wessel, Harvey D White, Cristen J Willer, James G Wilson, Daniel R Witte, Andrew R Wood, Ying Wu, Hanieh Yaghootkar, Jie Yao, Pang Yao, Laura M Yerges-Armstrong, Robin Young, Eleftheria Zeggini, Xiaowei Zhan, Weihua Zhang, Jing Hua Zhao, Wei Zhao, Wei Zhou, Krina T Zondervan, Jerome I Rotter, John A Pospisilik, Fernando Rivadeneira, Ingrid B Borecki, Panos Deloukas, Timothy M Frayling, Guillaume Lettre, Kari E North, Cecilia M Lindgren, Joel N Hirschhorn, Ruth J F Loos
Genome-wide association studies (GWAS) have identified >250 loci for body mass index (BMI), implicating pathways related to neuronal biology. Most GWAS loci represent clusters of common, noncoding variants from which pinpointing causal genes remains challenging. Here we combined data from 718,734 individuals to discover rare and low-frequency (minor allele frequency (MAF) < 5%) coding variants associated with BMI. We identified 14 coding variants in 13 genes, of which 8 variants were in genes (ZBTB7B, ACHE, RAPGEF3, RAB21, ZFHX3, ENTPD6, ZFR2 and ZNF169) newly implicated in human obesity, 2 variants were in genes (MC4R and KSR2) previously observed to be mutated in extreme obesity and 2 variants were in GIPR...
January 2018: Nature Genetics
https://www.readbyqxmd.com/read/29260547/cognitive-improving-effects-by-highbush-blueberry-vaccinium-crymbosum-l-vinegar-on-scopolamine-induced-amnesia-mice-model
#15
Seong Min Hong, Kyong Hee Soe, Taek Hwan Lee, In Sook Kim, Young Min Lee, Beong Ou Lim
The present study aimed to evaluate the preventive effects of highbush blueberry (Vaccinium corymbosum L.) vinegar (BV) on cognitive functions in a scopolamine (Sco)-induced amnesia model in mice. In this study, Sco (1 mg/kg, intraperitoneal injection) was used to induce amnesia. ICR mice were orally administered donepezil (5 mg/kg), blueberry extract (120 mg/kg), and BV (120 mg/kg) for 7 days. After inducing cognitive impairment by Sco, a behavioral assessment using behavior tests (i.e., Y-maze and passive avoidance tests) was performed...
December 20, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/29229708/neuronal-glutamate-transporters-control-dopaminergic-signaling-and-compulsive-behaviors
#16
Stefania Bellini, Kelsey E Fleming, Modhurika De, John P McCauley, Maurice A Petroccione, Lianna Y D'Brant, Artem Katchenko, SoYoung Kwon, Lindsey A Jones, Annalisa Scimemi
There is an ongoing debate on the contribution of the neuronal glutamate transporter EAAC1 to the onset of compulsive behaviors. Here we use behavioral, electrophysiological, molecular and viral approaches in male and female mice to identify the molecular and cellular mechanisms by which EAAC1 controls the execution of repeated motor behaviors. Our findings show that in the striatum, a brain region implicated with movement execution, EAAC1 limits group I metabotropic glutamate receptor (mGluRI) activation, facilitates D1 dopamine receptor (D1R) expression and ensures long-term synaptic plasticity...
December 11, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/29209218/nootropic-and-neuroprotective-effects-of-dichrocephala-integrifolia-on-scopolamine-mouse-model-of-alzheimer-s-disease
#17
Nadège E Kouémou, Germain S Taiwe, Fleur C O Moto, Simon Pale, Gwladys T Ngoupaye, Jacqueline S K Njapdounke, Gisèle C N Nkantchoua, David B Pahaye, Elisabeth Ngo Bum
Alzheimer's disease the most common form of dementia in the elderly is a neurodegenerative disease that affects 44 millions of people worldwide. The first treatments against Alzheimer's disease are acetylcholinesterase inhibitors; however, these medications are associated with many side effects. Dichrocephala integrifolia is a traditional herb widely used by indigenous population of Cameroon to treat and prevent Alzheimer's disease and for memory improvement. In this study, we evaluated the effect of the decoction prepared from leaves of D...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/29188513/optogenetic-retinal-gene-therapy-with-the-light-gated-gpcr-vertebrate-rhodopsin
#18
Benjamin M Gaub, Michael H Berry, Meike Visel, Amy Holt, Ehud Y Isacoff, John G Flannery
In retinal disease, despite the loss of light sensitivity as photoreceptors die, many retinal interneurons survive in a physiologically and metabolically functional state for long periods. This provides an opportunity for treatment by genetically adding a light sensitive function to these cells. Optogenetic therapies are in development, but, to date, they have suffered from low light sensitivity and narrow dynamic response range of microbial opsins. Expression of light-sensitive G protein coupled receptors (GPCRs), such as vertebrate rhodopsin , can increase sensitivity by signal amplification , as shown by several groups...
2018: Methods in Molecular Biology
https://www.readbyqxmd.com/read/29181488/preclinical-and-clinical-development-of-abbv-8e12-a-humanized-anti-tau-antibody-for-treatment-of-alzheimer-s-disease-and-other-tauopathies
#19
T West, Y Hu, P B Verghese, R J Bateman, J B Braunstein, I Fogelman, K Budur, H Florian, N Mendonca, D M Holtzman
Tau neurofibrillary tangles are found in the brains of patients suffering from Alzheimer's disease and other tauopathies. The progressive spreading of tau pathology from one brain region to the next is believed to be caused by extracellular transsynaptic transmission of misfolded tau between neurons. Preclinical studies have shown that antibodies against tau can prevent this transfer of misfolded tau between cells. Thus, antibodies against tau have the potential to stop or slow the progression of tau pathology observed in human tauopathies...
2017: Journal of Prevention of Alzheimer's Disease
https://www.readbyqxmd.com/read/29177493/calretinin-interneuron-density-in-the-caudate-nucleus-is-lower-in-autism-spectrum-disorder
#20
Istvan Adorjan, Bashir Ahmed, Virginia Feher, Mario Torso, Kristine Krug, Margaret Esiri, Steven A Chance, Francis G Szele
Autism spectrum disorder is a debilitating condition with possible neurodevelopmental origins but unknown neuroanatomical correlates. Whereas investigators have paid much attention to the cerebral cortex, few studies have detailed the basal ganglia in autism. The caudate nucleus may be involved in the repetitive movements and limbic changes of autism. We used immunohistochemistry for calretinin and neuropeptide Y in 24 age- and gender-matched patients with autism spectrum disorder and control subjects ranging in age from 13 to 69 years...
July 1, 2017: Brain: a Journal of Neurology
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