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https://www.readbyqxmd.com/read/28081025/transdermal-scopolamine-withdrawal-syndrome-case-report-in-the-pediatric-cerebral-palsy-population
#1
Nasim A Chowdhury, Mary Laura Sewatsky, Heakyung Kim
Sialorrhea in children with cerebral palsy (CP) results in aspiration, decreased social integration, and poor quality of life. Management options include transdermal anticholinergics such as the scopolamine patch. A controlled clinical trial has proven botulinum toxin (BTX) injections into the salivary glands are an effective alternative to transdermal anticholinergics with a safer side effect profile. Multiple studies of the injections in diverse populations demonstrate reduction in saliva production with improvement in quality of life and decrease in hospitalization-associated costs...
January 9, 2017: American Journal of Physical Medicine & Rehabilitation
https://www.readbyqxmd.com/read/28070619/theory-of-visual-attention-tva-applied-to-mice-in-the-5-choice-serial-reaction-time-task
#2
C M Fitzpatrick, M Caballero-Puntiverio, U Gether, T Habekost, C Bundesen, S Vangkilde, D P D Woldbye, J T Andreasen, A Petersen
RATIONALE: The 5-choice serial reaction time task (5-CSRTT) is widely used to measure rodent attentional functions. In humans, many attention studies in healthy and clinical populations have used testing based on Bundesen's Theory of Visual Attention (TVA) to estimate visual processing speeds and other parameters of attentional capacity. OBJECTIVES: We aimed to bridge these research fields by modifying the 5-CSRTT's design and by mathematically modelling data to derive attentional parameters analogous to human TVA-based measures...
January 9, 2017: Psychopharmacology
https://www.readbyqxmd.com/read/28069463/extinction-and-recovery-of-an-avoidance-memory-impaired-by-scopolamine
#3
N M Navarro, M C Krawczyk, M M Boccia, M G Blake
Pre-training administration of scopolamine (SCP) resembles situations of cholinergic dysfunction, leading to memory impairment of mice trained in an inhibitory avoidance task. We suggest here that SCP does not impair memory formation, but acquisition is affected in a way that reduces the strength of the stored memory, thus making this memory less able to control behavior when tested. Hence, a memory trace is stored, but is poorly expressed during the test. Although weakly expressed, this memory shows extinction during successive tests, and can be strengthened by using a reminder...
January 6, 2017: Physiology & Behavior
https://www.readbyqxmd.com/read/28069458/loganin-enhances-long-term-potentiation-and-recovers-scopolamine-induced-learning-and-memory-impairments
#4
Eun-Sang Hwang, Hyun-Bum Kim, Seok Lee, Min-Ji Kim, Sung-Ok Lee, Seung-Moo Han, Sungho Maeng, Ji-Ho Park
Although the incidence rate of dementia is rapidly growing in the aged population, therapeutic and preventive reagents are still suboptimal. Various model systems are used for the development of such reagents in which scopolamine is one of the favorable pharmacological tools widely applied. Loganin is a major iridoid glycoside obtained from Corni fructus (Cornusofficinaliset Zucc) and demonstrated to have anti-inflammatory, anti-tumor and osteoporosis prevention effects. It has also been found to attenuate Aβ-induced inflammatory reactions and ameliorate memory deficits induced by scopolamine...
January 6, 2017: Physiology & Behavior
https://www.readbyqxmd.com/read/28066141/dehydroevodiamine%C3%A2-hcl-enhances-cognitive-function-in-memory-impaired-rat-models
#5
Ki Young Shin, Ka Young Kim, Yoo-Hun Suh
Progressive memory impairment such as that associated with depression, stroke, and Alzheimer's disease (AD) can interfere with daily life. In particular, AD, which is a progressive neurodegenerative disorder, prominently features a memory and learning impairment that is related to changes in acetylcholine and abnormal β-amyloid (Aβ) deposition in the brain. In the present study, we investigated the effects of dehydroevodiamine·HCl (DHED) on cognitive improvement and the related mechanism in memory-impaired rat models, namely, a scopolamine-induced amnesia model and a Aβ1-42-infused model...
January 2017: Korean Journal of Physiology & Pharmacology
https://www.readbyqxmd.com/read/28061915/prevalence-predictors-and-prevention-of-motion-sickness-in-zero-g-parabolic-flights
#6
John F Golding, Aurore C Paillard, Hervé Normand, Stéphane Besnard, Pierre Denise
INTRODUCTION: Zero-G parabolic flight reproduces the weightlessness of space for short periods. However, motion sickness may affect some fliers. The aim was to assess the extent of this problem and to find possible predictors and modifying factors. METHODS: Airbus zero-G flights consist of 31 parabolas performed in blocks. Each parabola consisted of 20 s of 0 g sandwiched by 20 s of hypergravity of 1.5-1.8 g. The survey covered N = 246 person-flights (193 men, 53 women), ages (M ± SD) 36...
January 1, 2017: Aerospace Medicine and Human Performance
https://www.readbyqxmd.com/read/28054012/localization-of-muscarinic-acetylcholine-receptor-2-to-the-intestinal-crypt-stem-cell-compartment
#7
Eleanor D Muise, Neeru Gandotra, John J Tackett, Michaela C Bamdad, Robert A Cowles
The data presented in this article are related to the research article entitled "Distribution of muscarinic acetylcholine receptor subtypes in the murine small intestine" (E.D. Muise, N. Gandotra, J.J. Tackett, M.C. Bamdad, R.A. Cowles, 2016) [1]. We recently demonstrated that neuronal serotonin stimulates intestinal crypt cell division, and induces villus growth and crypt depth (E.R. Gross, M.D. Gershon, K.G. Margolis, Z.V. Gertsberg, Z. Li, R.A. Cowles, 2012; M.D. Gershon, 2013) [2], [3]. Scopolamine, a nonspecific muscarinic receptor antagonist, inhibited serotonin-induced intestinal mucosal growth [2]...
February 2017: Data in Brief
https://www.readbyqxmd.com/read/28042145/hippocampal-expression-of-connexin36-and-connexin43-during-epileptogenesis-in-pilocarpine-model-of-epilepsy
#8
Sahel Motaghi, Mohammad Sayyah, Vahab Babapour, Reza Mahdian
BACKGROUND: Gap junctions (GJs) provide direct intercellular communications that are formed by hexameric protein subunits, called connexin (Cx). The role of Cxs in epileptogenesis has not received sufficient attention. Hippocampus with critical function in epileptogenesis has a wide network of GJs. We examined the protein expression levels of hippocampal Cx36 (the prominent Cx present between GABAergic interneurons) and Cx43 (the main Cx expressed by astrocytes) during epileptogenesis in the pilocarpine model of epilepsy...
January 2, 2017: Iranian Biomedical Journal
https://www.readbyqxmd.com/read/28035122/retraction-to-memory-enhancing-effects-of-silk-fibroin-derived-peptides-in-scopolamine-treated-mice
#9
Yong Koo Kang, Woojoo Lee, Byunghoon Kang, Hannah Kang
This article has been retracted from JMB for misconduct of the authors (data fabrication and falsification). JMB as the publisher regrets for any inconvenience caused by the retraction.
December 28, 2016: Journal of Microbiology and Biotechnology
https://www.readbyqxmd.com/read/28032295/antagonism-of-muscarinic-acetylcholine-receptors-alters-synaptic-erk-phosphorylation-in-the-rat-forebrain
#10
Li-Min Mao, Henry H Wang, John Q Wang
Acetylcholine (ACh) is a key transmitter in the mesocorticolimbic circuit. By interacting with muscarinic ACh receptors (mAChR) enriched in the circuit, ACh actively regulates various neuronal and synaptic activities. The extracellular signal-regulated kinase (ERK) is one of members of the mitogen-activated protein kinase family and is subject to the regulation by dopamine receptors, although the regulation of ERKs by limbic mAChRs is poorly understood. In this study, we investigated the role of mAChRs in the regulation of ERK phosphorylation (activation) in the mesocorticolimbic system of adult rat brains in vivo...
December 28, 2016: Neurochemical Research
https://www.readbyqxmd.com/read/28025162/antioxidant-and-acetylcholinesterase-inhibitory-activities-in-vitro-of-different-fraction-of-huperzia-squarrosa-forst-trevis-extract-and-attenuation-of-scopolamine-induced-cognitive-impairment-in-mice
#11
Bui Thanh Tung, Nguyen Thanh Hai, Dang Kim Thu
ETHNOPHARMACOLOGICAL RELEVANCE: Huperzia squarrosa (Forst.) Trevis is used in traditional medicine for improving memory deficits. Alkaloids, triterpenoids, flavonoids are main bioactive compounds of Huperzia squarrosa (Forst.) Trevis. AIM OF THE STUDY: This study aimed to investigate the antioxidant, AChE inhibitory activities in vitro of differents fraction of Huperzia squarrosa (Forst.) Trevis extract and neuroprotective effects of EtOAc fraction on scopolamine-induced cognitive impairment in mice...
December 23, 2016: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/28025040/acetylcholine-released-from-t-cells-regulates-intracellular-ca-2-il-2-secretion-and-t-cell-proliferation-through-nicotinic-acetylcholine-receptor
#12
Masato Mashimo, Yukari Iwasaki, Shoko Inoue, Shoko Saito, Koichiro Kawashima, Takeshi Fujii
AIMS: T lymphocytes synthesize acetylcholine (ACh) and express muscarinic and nicotinic ACh receptors (mAChR and nAChR, respectively) responsible for increases in the intracellular Ca(2+) concentration ([Ca(2+)]i). Our aim in the present study was to assess whether autocrine ACh released from T lymphocytes regulates their physiological functions. MAIN METHODS: MOLT-3 human leukemic cell line and murine splenocytes were loaded with fura-2 to monitor [Ca(2+)]i changes in the absence or presence of several AChR antagonists, including mecamylamine, methyllycaconitine and scopolamine...
December 23, 2016: Life Sciences
https://www.readbyqxmd.com/read/28009436/pharmacological-characterisation-of-n-2s-5-6-fluoro-3-pyridinyl-2-3-dihydro-1h-inden-2-yl-2-propanesulfonamide-a-novel-clinical-ampa-receptor-positive-allosteric-modulator
#13
Simon E Ward, Paul Beswick, Novella Calcinaghi, Lee A Dawson, Jane Gartlon, Francesca Graziani, Declan N C Jones, Laurent Lacroix, M H Selina Mok, Beatrice Oliosi, Joanne Pardoe, Kathryn Starr, Marie L Woolley, Mark H Harries
BACKGROUND AND PURPOSE: AMPA receptor positive allosteric modulators represent a potential therapeutic strategy to improve cognition in people with schizophrenia. These studies collectively constitute the pre-clinical pharmacology data package used to build confidence in the pharmacology of this molecule and enable a clinical trial application. EXPERIMENTAL APPROACH: [N-[(2S)-5-(6-fluoro-3-pyridinyl)-2,3-dihydro 1H-inden-2-yl]-2-propanesulfonamide] (UoS12258) was profiled in a number of in vitro and in vivo studies to highlight its suitability as a novel therapeutic agent...
December 23, 2016: British Journal of Pharmacology
https://www.readbyqxmd.com/read/28001065/prunella-vulgaris-l-an-edible-and-medicinal-plant-attenuates-scopolamine-induced-memory-impairment-in-rats
#14
Zhuo Qu, Jingze Zhang, Honggai Yang, Jing Gao, Hong Chen, Changxiao Liu, Wenyuan Gao
Prunella vulgaris L. is as a major plant in the Chinese traditional functional beverage Guangdong herbal tea for the treatment of fevers, diarrhea, and sore mouth. In this study, ethyl acetate parts of aqueous extracts from P. vulgaris L. (EtOAc-APV) were found to demonstrate potent acetylcholinesterase (AChE) inhibition in vitro. Therefore, this study was designed to further investigate the effects of EtOAc-APV on scopolamine (SCOP)-induced aging rats. Male Wistar rats were randomly divided into four groups (n = 12) and given orally by gavage EtOAc-APV (100 mg/kg) for 3 weeks...
January 18, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/27998753/effects-of-intra-hippocampal-microinjection-of-vitamin-b12-on-the-orofacial-pain-and-memory-impairments-induced-by-scopolamine-and-orofacial-pain-in-rats
#15
Amir Erfanparast, Esmaeal Tamaddonfard, Shaghayegh Nemati
In the present study, we investigated the effects of microinjection of vitamin B12 into the hippocampus on the orofacial pain and memory impairments induced by scopolamine and orofacial pain. In ketamine-xylazine anesthetized rats, the right and left sides of the dorsal hippocampus (CA1) were implanted with two guide cannulas. Orofacial pain was induced by subcutaneous injection of formalin (1.5%, 50μl) into the right vibrissa pad, and the durations of face rubbing were recorded at 3-min blocks for 45min. Morris water maze (MWM) was used for evaluation of learning and memory...
December 18, 2016: Physiology & Behavior
https://www.readbyqxmd.com/read/27996351/effect-of-pregabalin-on-fear-based-conditioned-avoidance-learning-and-spatial-learning-in-a-mouse-model-of-scopolamine-induced-amnesia
#16
Kinga Sałat, Adrian Podkowa, Natalia Malikowska, Jędrzej Trajer
OBJECTIVES: Cognitive deficits are one of the frequent symptoms accompanying epilepsy or its treatment. METHODS: In this study the effect on cognition of intraperitoneally administered antiepileptic drug, pregabalin (10 mg/kg), was investigated in scopolamine-induced memory-impaired mice in the passive avoidance task and Morris water maze task. The effect of scopolamine and pregabalin on animals' locomotor activity was also studied. RESULTS: In the retention phase of the passive avoidance task, pregabalin reversed memory deficits induced by scopolamine (P < 0...
December 20, 2016: Toxicology Mechanisms and Methods
https://www.readbyqxmd.com/read/27993648/contribution-of-the-basolateral-amygdala-nmda-and-muscarinic-receptors-in-rat-s-memory-retrieval
#17
Efat Nazarinia, Ameneh Rezayof, Maryam Sardari, Nima Yazdanbakhsh
The present study was designed to investigate the involvement of the muscarinic cholinergic receptors in the basolateral amygdala (BLA) in memory retrieval. Also, the possible relationship between the BLA muscarinic cholinergic and the NMDA receptor systems was evaluated in the inhibitory avoidance learning. Male Wistar rats were bilaterally cannulated into the BLAs and memory retrieval was measured in a step-through type inhibitory avoidance apparatus. Intra-BLA microinjection of different doses of a non-selective muscarinic receptor antagonist, scopolamine (0...
December 16, 2016: Neurobiology of Learning and Memory
https://www.readbyqxmd.com/read/27984078/anti-inflammatory-and-protective-effects-of-mt-031-a-novel-multitarget-mao-a-and-ache-buche-inhibitor-in-scopolamine-mouse-model-and-inflammatory-cells
#18
Wei Liu, Alon Rabinovich, Yuval Nash, Dan Frenkel, Yuqiang Wang, Moussa B H Youdim, Orly Weinreb
Previous study demonstrated that the novel multitarget compound, MT-031 preserved in one molecule entity the beneficial properties of its parent drugs, rasagiline and rivastigmine, and exerted high dual potencies of monoamine oxidase-A (MAO-A) and cholinesterase (ChE) inhibition in acute-treated mice and neuroprotective effects against H2O2-induced neurotoxicity in human neuroblastoma SH-SY5Y cells. The present study aimed to further investigate the anti-inflammatory and protective effects of MT-031 in scopolamine mouse model and inflammatory cell cultures...
October 28, 2016: Neuropharmacology
https://www.readbyqxmd.com/read/27979694/effect-of-rotation-preference-on-spontaneous-alternation-behavior-on-y-maze-and-introduction-of-a-new-analytical-method-entropy-of-spontaneous-alternation
#19
Jia Bak, Hae-In Pyeon, Jin-I Seok, Yun-Sik Choi
Y maze has been used to test spatial working memory in rodents. To this end, the percentage of spontaneous alternation has been employed. Alternation indicates sequential entries into all three arms; e.g., when an animal visits all three arms clockwise or counterclockwise sequentially, alternation is achieved. Interestingly, animals have a tendency to rotate or turn to a preferred side. Thus, when an animal has a high rotation preference, this may influence their alternation behavior. Here, we have generated a new analytical method, termed entropy of spontaneous alternation, to offset the effect of rotation preference on Y maze...
December 12, 2016: Behavioural Brain Research
https://www.readbyqxmd.com/read/27979237/densitometric-tlc-analysis-for-the-control-of-tropane-and-steroidal-alkaloids-in-lycium-barbarum
#20
A Kokotkiewicz, P Migas, J Stefanowicz, M Luczkiewicz, M Krauze-Baranowska
Thin layer chromatographic methods for quantitative determination of nightshade-specific tropane (l-hyoscyamine, scopolamine) and steroidal alkaloids (α-solanine, α-chaconine) in goji berries (L. barbarum L., Solanaceae) were developed. The analysis of tropane derivatives included separation on silica gel-coated HPTLC plates using mobile phase consisted of chloroform:methanol:acetone:25% ammonium hydroxide (75:15:10:1.6 v/v/v/v), derivatization with Dragendorff reagent and scanning densitometry at λ - 520nm in reflectance/absorption mode...
April 15, 2017: Food Chemistry
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