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https://www.readbyqxmd.com/read/28632177/the-intersection-of-ngf-trka-signaling-and-amyloid-precursor-protein-processing-in-alzheimer-s-disease-neuropathology
#1
REVIEW
Nadia Canu, Giuseppina Amadoro, Viviana Triaca, Valentina Latina, Valentina Sposato, Veronica Corsetti, Cinzia Severini, Maria Teresa Ciotti, Pietro Calissano
Dysfunction of nerve growth factor (NGF) and its high-affinity Tropomyosin receptor kinase A (TrkA) receptor has been suggested to contribute to the selective degeneration of basal forebrain cholinergic neurons (BFCN) associated with the progressive cognitive decline in Alzheimer's disease (AD). The aim of this review is to describe our progress in elucidating the molecular mechanisms underlying the dynamic interplay between NGF/TrkA signaling and amyloid precursor protein (APP) metabolism within the context of AD neuropathology...
June 20, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28629287/anti-acetylcholinesterase-activity-and-antioxidant-properties-of-extracts-and-fractions-of-carpolobia-lutea
#2
Lucky Legbosi Nwidu, Ekramy Elmorsy, Jack Thornton, Buddhika Wijamunige, Anusha Wijesekara, Rebecca Tarbox, Averil Warren, Wayne Grant Carter
CONTEXT: There is an unmet need to discover new treatments for Alzheimer's disease. This study determined the anti-acetylcholinesterase (AChE) activity, DPPH free radical scavenging and antioxidant properties of Carpolobia lutea G. Don (Polygalaceae). OBJECTIVE: The objective of this study is to quantify C. lutea anti-AChE, DPPH free radical scavenging, and antioxidant activities and cell cytotoxicity. MATERIALS AND METHODS: Plant stem, leaves and roots were subjected to sequential solvent extractions, and screened for anti-AChE activity across a concentration range of 0...
December 2017: Pharmaceutical Biology
https://www.readbyqxmd.com/read/28618650/anti-amnesic-effects-of-ganoderma-species-a-possible-cholinergic-and-antioxidant-mechanism
#3
Ravneet Kaur, Varinder Singh, Richa Shri
Mushrooms are valued for their nutritional as well as medicinal properties. Ganoderma species are used traditionally to treat neurological disorders but scientific evidence for this is insufficient. The present study was designed to systematically evaluate the anti-amnesic effect of selected Ganoderma species i.e. G. mediosinense and G. ramosissimum. Extracts of selected mushroom species were evaluated for their antioxidant activity and acetylcholinesterase (AChE) inhibition using in-vitro assays (DPPH and Ellman tests respectively)...
June 10, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28611658/neuroprotective-and-anti-aging-potentials-of-essential-oils-from-aromatic-and-medicinal-plants
#4
REVIEW
Muhammad Ayaz, Abdul Sadiq, Muhammad Junaid, Farhat Ullah, Fazal Subhan, Jawad Ahmed
The use of essential oils (EOs) and their components is known since long in traditional medicine and aromatherapy for the management of various diseases, and is further increased in the recent times. The neuroprotective and anti-aging potentials of EOs and their possible mechanism of actions were evaluated by numerous researchers around the globe. Several clinically important EOs and their components from Nigella sativa, Acorus gramineus, Lavandula angustifolia, Eucalyptus globulus, Mentha piperita, Rosmarinus officinalis, Jasminum sambac, Piper nigrum and so many other plants are reported for neuroprotective effects...
2017: Frontiers in Aging Neuroscience
https://www.readbyqxmd.com/read/28603119/effect-of-chongmyungtang-a-traditional-korean-polyherbal-formula-on-the-pharmacokinetic-profiles-of-donepezil-in-rats
#5
Kyung-Min Baek, Oh-Dae Kwon, Soo-Jin Park, Chang-Hyun Song, Sae-Kwang Ku
Chongmyungtang (CMT) is a famous Korean herbal medicine for improving learning and memory, which has been reported to have anti-cholinergic and neuroprotective effects. Therefore, drug-drug interactions were examined between CMT and donepezil as a first screening of combination therapy for cognitive deficits. Rats received oral co-administration of donepezil with distilled water as a control or donepezil with CMT as a combination. The distilled water or CMT was co-administered at intervals within 5min after donepezil or 1...
January 2017: Pakistan Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/28595190/nonpharmacological-biomechanical-approaches-to-control-inflammation-in-acute-kidney-injury
#6
Shinji Tanaka, Tsuyoshi Inoue, John A Hossack, Mark D Okusa
Inflammation is broadly recognized as an important factor in the pathogenesis of acute kidney injury (AKI), but pharmacological approaches to alleviate inflammation in AKI have been without success in clinical trials. Neuromodulation by nonpharmacological methods is emerging as a novel therapeutic strategy to treat inflammatory diseases. Recently, our group and others have demonstrated that vagus nerve stimulation and pulsed ultrasound ameliorated inflammation via the cholinergic anti-inflammatory pathway (CAP) in various animal models, including renal ischemia-reperfusion injury...
June 9, 2017: Nephron
https://www.readbyqxmd.com/read/28558964/unravelling-the-interaction-of-pirenzepine-a-gastrointestinal-disorder-drug-with-calf-thymus-dna-an-in%C3%A2-vitro-and-molecular-modelling-study
#7
Yusra Rahman, Shumaila Afrin, Mohammed Amir Husain, Tarique Sarwar, Abad Ali, Shamsuzzaman, Mohammad Tabish
Pirenzepine is an anti-ulcer agent which belongs to the anti-cholinergic group of gastrointestinal disorder drugs and functions as an M1 receptor selective antagonist. Drug-DNA interaction studies are of great significance as it helps in the development of new therapeutic drugs. It provides a deeper understanding into the mechanism through which therapeutic drugs control gene expression. Interaction of pirenzepine with calf-thymus DNA (Ct-DNA) was determined via a series of biophysical techniques. UV-visible absorption and fluorescence spectroscopy confirmed the formation of pirenzepine-Ct-DNA complex...
May 27, 2017: Archives of Biochemistry and Biophysics
https://www.readbyqxmd.com/read/28547815/balancing-the-autonomic-nervous-system-to-reduce-inflammation-in-rheumatoid-arthritis
#8
F A Koopman, M A van Maanen, M J Vervoordeldonk, P P Tak
Imbalance in the autonomic nervous system (ANS) has been observed in many established chronic autoimmune diseases, including rheumatoid arthritis (RA), which is a prototypic immune-mediated inflammatory disease (IMID). We recently discovered that autonomic dysfunction precedes and predicts arthritis development in subjects at risk of developing seropositive RA. In addition, RA patients with relatively high vagus nerve tone (higher parasympathetic parameters, measured by heart rate variability) respond better to antirheumatic therapies...
May 26, 2017: Journal of Internal Medicine
https://www.readbyqxmd.com/read/28539959/tardive-dystonia-related-with-aripiprazole
#9
Sunghwan Kim, Seung-Yup Lee, MinSeob Kim, Kyoung-Uk Lee
Tardive dystonia is characterized by sustained, generally slow involuntary twisting movements. It is estimated to occur at a frequency of 1% to 4% among patients who are taking an antipsychotic agent. Unlike the first generation antipsychotics, the second generation antipsychotics are less likely to cause neuroleptic-induced movement disorder. For aripiprazole, only a few cases have been reported for tardive dystonia. We present a young male, who developed a severe tardive dystonia after taking aripiprazole for 5 years...
May 2017: Psychiatry Investigation
https://www.readbyqxmd.com/read/28529069/cholinergic-modulation-of-the-immune-system-presents-new-approaches-for-treating-inflammation
#10
REVIEW
Donald B Hoover
The nervous system and immune system have broad and overlapping distributions in the body, and interactions of these ubiquitous systems are central to the field of neuroimmunology. Over the past two decades, there has been explosive growth in our understanding of neuroanatomical, cellular, and molecular mechanisms that mediate central modulation of immune functions through the autonomic nervous system. A major catalyst for growth in this field was the discovery that vagal nerve stimulation (VNS) caused a prominent attenuation of the systemic inflammatory response evoked by endotoxin in experimental animals...
May 18, 2017: Pharmacology & Therapeutics
https://www.readbyqxmd.com/read/28505155/oxidative-stress-and-expression-of-insulin-signaling-proteins-in-the-brain-of-diabetic-rats-role-of-nigella-sativa-oil-and-antidiabetic-drugs
#11
Mahmoud Balbaa, Shaymaa A Abdulmalek, Sofia Khalil
BACKGROUND AND OBJECTIVES: Insulin resistance of the brain is a specific form of type2-diabetes mellitus (T2DM) and the active insulin-signaling pathway plays a neuroprotective role against damaging conditions and Alzheimer's progression. The present study identifies the mediated emerging effects of the Nigella sativa oil (NSO) on the memory enhancing process, its anti-oxidative, acetylcholinestrase (AChE) inhibition, anti-brain insulin resistance and anti-amyloidogenic activities. In addition, the possible role of some anti-diabetic drugs in the neuro-protection processes and their effect in combination with NSO and/or the insulin receptor inhibitor IOMe-AG538 were investigated...
2017: PloS One
https://www.readbyqxmd.com/read/28501482/ciproxifan-improves-cholinergic-transmission-attenuates-neuroinflammation-and-oxidative-stress-but-does-not-reduce-amyloid-level-in-transgenic-mice
#12
Vasudevan Mani, Siti Murnirah Jaafar, Nur Syamimi Mohd Azahan, Kalavathy Ramasamy, Siong Meng Lim, Long Chiau Ming, Abu Bakar Abdul Majeed
AIM: The present study is aimed to investigate the ability of ciproxifan, a histamine H3 receptor antagonist to inhibit β-amyloid (Aβ)-induced neurotoxicity in SK-N-SH cells and APP transgenic mouse model. MATERIALS AND METHODS: In vitro studies was designed to evaluate the neuroprotective effects of ciproxifan in Aβ25-35 - induced SK-N-SH cells. For the in vivo study, ciproxifan (1 and 3mg/kg, i.p.) was administrated to transgenic mice for 15days and behaviour was assessed using the radial arm maze (RAM)...
July 1, 2017: Life Sciences
https://www.readbyqxmd.com/read/28497342/exploration-of-the-acetylcholinesterase-inhibitory-activity-of-some-alkaloids-from-amaryllidaceae-family-by-molecular-docking-in-silico
#13
Willian O Castillo-Ordóñez, Elvira R Tamarozzi, Gabriel M da Silva, Andrés F Aristizabal-Pachón, Elza T Sakamoto-Hojo, Catarina S Takahashi, Silvana Giuliatti
Alzheimer's disease (AD) is a progressive condition, where dementia symptoms gradually worsen. Biochemically the disease is characterized by the presence of neuritic plaques, neurofibrillary tangles, in addition to cholinergic dysfunction in the central nervous system. The role of the cholinergic neurotransmission in AD is the basis of the widely accepted cholinergic hypothesis. Some of the most relevant therapies for the treatment of the disease are based on the acetylcholinesterase (AChE) inhibitor activity; however, these therapies are not effective to stop the disease progression, but only can temporarily slow down the worsening of dementia symptoms, and improve quality of life of patients and their caregivers...
May 11, 2017: Neurochemical Research
https://www.readbyqxmd.com/read/28488113/fermented-citrus-reticulata-ponkan-fruit-squeezed-draff-that-contains-a-large-amount-of-4-demethylnobiletin-prevents-mk801-induced-memory-impairment
#14
Ichiro Kawahata, Tatsuya Suzuki, Evelyn Gutiérrez Rico, Shuichi Kusano, Hiroshi Tamura, Yoshihiro Mimaki, Tohru Yamakuni
A previous study reported biotransformation of a citrus peel polymethoxyflavone, nobiletin, by Aspergillus enabling production of 4'-demethylnobiletin, and the product's antimutagenic activity. However, the effects of fermented citrus peel on the basal forebrain-hippocampal system remain unidentified. Citrus reticulata (ponkan) fruit squeezed draffs are generated as mass waste in beverage factories. In this study using PC12D cells and cultured central nervous system neurons, we therefore examined whether Aspergillus kawachii-fermented citrus fruit squeezed draff could affect cAMP response element (CRE)- and choline acetyltransferase gene (ChAT) promoter region-mediated transcriptional activities relevant to memory formation and cholinergic function...
May 9, 2017: Journal of Natural Medicines
https://www.readbyqxmd.com/read/28487766/malathion-increases-apoptotic-cell-death-by-inducing-lysosomal-membrane-permeabilization-in-n2a-neuroblastoma-cells-a-model-for-neurodegeneration-in-alzheimer-s-disease
#15
Ramu Venkatesan, Yong Un Park, Eunhee Ji, Eui-Ju Yeo, Sun Yeou Kim
Malathion is an organophosphate with severe neurotoxic effects. Upon acute exposure, malathion initially enhances cholinergic activity by inhibition of acetylcholinesterase, which is its major pathological mechanism. Malathion also induces non-cholinergic neuronal cell death in neurodegenerative conditions; the associated molecular mechanism is not well-characterized. To investigate the molecular mechanism of malathion-induced cell death, N2a mouse neuroblastoma cells were exposed to malathion and cell death-related parameters were examined...
2017: Cell Death Discovery
https://www.readbyqxmd.com/read/28474543/neuroprotective-effects-of-citrus-fruit-derived-flavonoids-nobiletin-and-tangeretin-in-alzheimer-s-and-parkinson-s-disease
#16
Nady Braidy, Sahar Behzad, Solomon Habtemariam, Touqeer Ahmed, Maria Daglia, Seyed Mohammad Nabavi, Eduardo Sobarzo-Sanchez, Seyed Fazel Nabavi
Neurodegenerative diseases, namely Alzheimer`s disease and Parkinson's disease represent a deleterious impact worldwide. Despite extensive preclinical and clinical research in neurodegenerative disorders, therapeutic strategies aimed at the prevention and chronic treatment of neurodegenerative conditions have not been successfully translated to the clinic. Therefore, the identification of novel pharmacological intervention derived from natural products is warranted. Nobiletin and tangeretin are important citrus flavonoids derived from the peel and other parts of Citrus L...
March 27, 2017: CNS & Neurological Disorders Drug Targets
https://www.readbyqxmd.com/read/28463798/gladiolus-dalenii-lyophilisate-reverses-scopolamine-induced-amnesia-and-reduces-oxidative-stress-in-rat-brain
#17
Gwladys Temkou Ngoupaye, David Bougolla Pahaye, Judith Ngondi, Fleur Clarisse Okomolo Moto, Elisabeth Ngo Bum
Learning and memory are the most important executive functions performed by the human brain, the loss of which is a prominent feature in dementia. Gladiolus dalenii is traditionally used to treat a number of illnesses such as epilepsy and schizophrenia in Cameroon. This study aims to investigate the anti-amnesia effect of Gladiolus dalenii in scopolamine-induced amnesia in rats and its possible antioxidant properties in this model. Morris water maze, novel object location and recognition tasks were used to assess spatial and working memory...
July 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28447988/increased-recovery-time-and-decreased-lps-administration-to-study-the-vagus-nerve-stimulation-mechanisms-in-limited-inflammatory-responses
#18
Erwan Le Maître, Priya Revathikumar, Johanna Estelius, Jon Lampa
Inflammation is a local response to infection and tissue damage mediated by activated macrophages, monocytes, and other immune cells that release cytokines and other mediators of inflammation. For a long time, humoral and cellular mechanisms have been studied for their role in regulating the immune response, but recent advances in the field of immunology and neuroscience have also unraveled specific neural mechanisms with interesting therapeutic potential. The so-called cholinergic anti-inflammatory pathway (CAP) has been described to control innate immune responses and inflammation in a very potent manner...
March 29, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28442406/anti-amnesic-effect-of-extract-and-alkaloid-fraction-from-aerial-parts-of-peganum-harmala-on-scopolamine-induced-memory-deficits-in-mice
#19
Wei Liu, Yudan Zhu, Yongli Wang, Shenglan Qi, Yuwen Wang, Chao Ma, Shuping Li, Bo Jiang, Xuemei Cheng, Zhengtao Wang, Zhenyu Xuan, Changhong Wang
ETHNOPHARMACOLOGICAL RELEVANCE: Aerial parts of Peganum harmala Linn (APP) is used as traditional medical herb for treatment of forgetfulness in Uighur medicine in China. But, the active ingredients and underlying mechanisms are unclear. AIM OF THE STUDY: The present study was undertaken to investigate the improvement effects of extract and alkaloid fraction from APP on scopolamine-induced cognitive dysfunction and to elucidate their underlying mechanisms of action, and to support its folk use with scientific evidence, and lay a foundation for its further researches...
April 22, 2017: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/28441890/rosuvastatin-ameliorates-cognitive-impairment-in-rats-fed-with-high-salt-and-cholesterol-diet-via-inhibiting-acetylcholinesterase-activity-and-amyloid-beta-peptide-aggregation
#20
I Husain, M Akhtar, M Zainul Abdin, M Islamuddin, M Shaharyar, A K Najmi
Amyloid beta (Aβ) peptide aggregation and cholinergic neurodegeneration are involved in the development of cognitive impairment. Therefore, in this article, we examined rosuvastatin (RSV), an oral hypolipidemic drug, to determine its potential as a dual inhibitor of acetylcholinesterase (AChE) and Aβ peptide aggregation for the treatment of cognitive impairment. Molecular docking study was done to examine the affinity of RSV with Aβ1-42 and AChE in silico. We also employed neurobehavioral activity tests, biochemical estimation, and histopathology to study the anti-Aβ1-42 aggregation capability of RSV in vivo...
January 1, 2017: Human & Experimental Toxicology
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