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https://www.readbyqxmd.com/read/29141041/effects-of-a-mixed-berry-beverage-on-cognitive-functions-and-cardiometabolic-risk-markers-a-randomized-cross-over-study-in-healthy-older-adults
#1
Anne Nilsson, Ilkka Salo, Merichel Plaza, Inger Björck
BACKGROUND: Berries and associated bioactive compounds, e.g. polyphenols and dietary fibre (DF), may have beneficial implications with respect to the metabolic syndrome, including also cognitive functions. The aim of this study was to evaluate effects on cognitive functions and cardiometabolic risk markers of 5 wk intervention with a mixture of berries, in healthy humans. METHODS: Forty healthy subjects between 50-70 years old were provided a berry beverage based on a mixture of berries (150g blueberries, 50g blackcurrant, 50g elderberry, 50g lingonberries, 50g strawberry, and 100g tomatoes) or a control beverage, daily during 5 weeks in a randomized crossover design...
2017: PloS One
https://www.readbyqxmd.com/read/29138799/lychee-seed-extract-protects-against-neuronal-injury-and-improves-cognitive-function-in-rats-with-type-ii-diabetes-mellitus-with-cognitive-impairment
#2
Yong Tang, Chonglin Yu, Jianming Wu, Haixia Chen, Yuan Zeng, Xiuling Wang, Le Yang, Qibing Mei, Shousong Cao, Dalian Qin
Lychee seed is a traditional Chinese medicine and has many beneficial effects such as modulation of blood sugar and lipids, antioxidation, antivirus and antitumor. Studies have indicated that type II diabetes mellitus (T2DM) and Alzheimer's disease (AD) share common biological mechanisms including insulin resistance, impaired glucose metabolism, β‑amyloid (Aβ) formation, oxidative stress and presence of advanced glycation end products (AGEs). The present study investigated the effects of lychee seed extract (LSE) on neuroprotection, cognitive function improvement and possible underlying mechanisms in a rat model of T2DM with cognitive impairment...
November 9, 2017: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/29136094/effects-of-multidomain-lifestyle-intervention-omega-3-supplementation-or-their-combination-on-physical-activity-levels-in-older-adults-secondary-analysis-of-the-multidomain-alzheimer-preventive-trial-mapt-randomised-controlled-trial
#3
Philipe de Souto Barreto, Yves Rolland, Matteo Cesari, Charlotte Dupuy, Sandrine Andrieu, Bruno Vellas
Background/objectives: to investigate the effects of a 3-year multidomain lifestyle intervention, omega-3 supplementation or both on physical activity (PA) in older adults with subjective memory complaints. Design/settings/subjects: the Multidomain Alzheimer Preventive Trial was a 3-year randomised controlled trial that enroled 1,680 community-dwelling adults aged 70 years or over, with subjective memory complaints. Participants were randomised to omega-3 supplementation (total daily dose of 800 mg docosahexanoic acid and up to 225 mg eicosapentanoic acid), multidomain intervention (nutritional and exercise counselling and cognitive training), omega-3 plus multidomain intervention or placebo with usual care...
November 10, 2017: Age and Ageing
https://www.readbyqxmd.com/read/29129774/crosstalk-between-endoplasmic-reticulum-stress-and-brain-inflammation-in-alzheimer-s-disease
#4
REVIEW
Luis E Santos, Sergio T Ferreira
While most often noted for its cognitive symptoms, Alzheimer's disease (AD) is, at its core, a disease of protein misfolding/aggregation, with an intriguing inflammatory component. Defective clearance and/or abnormal production of the amyloid-β peptide (Aβ), and its ensuing accumulation and aggregation, underlie two hallmark features of AD: brain accumulation of insoluble protein deposits known as amyloid or senile plaques, and buildup of soluble Aβ oligomers (AβOs), diffusible toxins linked to synapse dysfunction and memory impairment...
November 9, 2017: Neuropharmacology
https://www.readbyqxmd.com/read/29128902/overexpression-of-5-lipoxygenase-worsens-the-phenotype-of-a-mouse-model-of-tauopathy
#5
Phillip F Giannopoulos, Domenico Praticò
Brain accumulation of increasing amount of phosphorylated microtubule associated tau protein is one the major hallmark lesions of Alzheimer's disease (AD) and related tauopathies. Consistent evidence from clinical and animal studies has shown that neuroinflammation characterizes these diseases. The 5-lipoxygenase (5LO) is an enzyme protein whose metabolic products are lipids with potent inflammatory actions. Previously, we showed that blockade of 5LO activation ameliorates the phenotype of the htau transgenic mice...
November 11, 2017: Molecular Neurobiology
https://www.readbyqxmd.com/read/29125488/comparison-between-fcsrt-and-lassi-l-to-detect-early-stage-alzheimer-s-disease
#6
Jordi A Matias-Guiu, María Nieves Cabrera-Martín, Rosie E Curiel, María Valles-Salgado, Teresa Rognoni, Teresa Moreno-Ramos, José Luis Carreras, David A Loewenstein, Jorge Matías-Guiu
BACKGROUND: The Free and Cued Selective Reminding Test (FCSRT) is the most accurate test for the diagnosis of prodromal Alzheimer's disease (AD). Recently, a novel cognitive test, the Loewenstein-Acevedo Scale for Semantic Interference and Learning (LASSI-L), has been developed in order to provide an early diagnosis. OBJECTIVE: To compare the diagnostic accuracy of the FCSRT and the LASSI-L for the diagnosis of AD in its preclinical and prodromal stages using 18F-fluorodeoxyglucose positron emission tomography (FDG-PET) as a reference...
November 8, 2017: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/29124442/neuropsychological-profile-in-parents-of-adult-phenylketonuria-patients
#7
Gabriella Santangelo, Fausta Piscopo, Franco Santangelo, Luigi Trojano
Phenylketonuria (PKU) is a disorder caused by an inborn error of metabolism, causing cognitive and behavioral disorders when not treated. Heterozygotes (i.e., patients' parents) were described with low verbal intelligence quotient, but no study systematically investigated cognitive functions in PKU parents. To obtain a neuropsychological profile in heterozygotes, we compared cognitive performance of heterozygotes and healthy controls (HC) on cognitive battery. Twelve heterozygotes and 14 HCs underwent standardized neuropsychological tasks assessing frontal/executive functions, memory, and visuospatial abilities...
November 9, 2017: Neurological Sciences
https://www.readbyqxmd.com/read/29123402/transient-global-amnesia-current-perspectives
#8
REVIEW
David R Spiegel, Justin Smith, Ryan R Wade, Nithya Cherukuru, Aneel Ursani, Yuliya Dobruskina, Taylor Crist, Robert F Busch, Rahim M Dhanani, Nicholas Dreyer
Transient global amnesia (TGA) is a clinical syndrome characterized by the sudden onset of an extraordinarily large reduction of anterograde and a somewhat milder reduction of retrograde episodic long-term memory. Additionally, executive functions are described as diminished. Although it is suggested that various factors, such as migraine, focal ischemia, venous flow abnormalities, and epileptic phenomena, are involved in the pathophysiology and differential diagnosis of TGA, the factors triggering the emergence of these lesions are still elusive...
2017: Neuropsychiatric Disease and Treatment
https://www.readbyqxmd.com/read/29121965/chronic-cerebral-hypoperfusion-induces-post-stroke-dementia-following-acute-ischemic-stroke-in-rats
#9
Dong Bin Back, Kyoung Ja Kwon, Dong-Hee Choi, Chan Young Shin, Jongmin Lee, Seol-Heui Han, Hahn Young Kim
BACKGROUND: Post-stroke dementia (PSD) is one of the major consequences after stroke. Chronic cerebral hypoperfusion (CCH) can induce vascular cognitive impairment and potentiate amyloid pathology. We investigated how CCH contributes to the development of PSD after stroke in the context of neuroinflammation and amyloid pathology. METHODS: We designed a unique animal model for PSD. We performed middle cerebral artery occlusion (MCAO) surgery in rats mimicking acute territorial infarct, which was followed by bilateral common carotid artery occlusion (BCCAo) surgery mimicking CCH...
November 9, 2017: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/29121639/a-subset-of-sweet-sensing-neurons-identified-by-ir56d-are-necessary-and-sufficient-for-fatty-acid-taste
#10
John M Tauber, Elizabeth B Brown, Yuanyuan Li, Maria E Yurgel, Pavel Masek, Alex C Keene
Fat represents a calorically potent food source that yields approximately twice the amount of energy as carbohydrates or proteins per unit of mass. The highly palatable taste of free fatty acids (FAs), one of the building blocks of fat, promotes food consumption, activates reward circuitry, and is thought to contribute to hedonic feeding underlying many metabolism-related disorders. Despite a role in the etiology of metabolic diseases, little is known about how dietary fats are detected by the gustatory system to promote feeding...
November 9, 2017: PLoS Genetics
https://www.readbyqxmd.com/read/29121298/human-neural-correlates-of-sevoflurane-induced-unconsciousness
#11
B J A Palanca, M S Avidan, G A Mashour
Sevoflurane, a volatile anaesthetic agent well-tolerated for inhalation induction, provides a useful opportunity to elucidate the processes whereby halogenated ethers disrupt consciousness and cognition. Multiple molecular targets of sevoflurane have been identified, complementing imaging and electrophysiologic markers for the mechanistically obscure progression from wakefulness to unconsciousness. Recent investigations have more precisely detailed scalp EEG activity during this transition, with practical clinical implications...
October 1, 2017: British Journal of Anaesthesia
https://www.readbyqxmd.com/read/29121144/positron-emission-tomography-computed-tomography-based-assessments-of-androgen-receptor-expression-and-glycolytic-activity-as-a-prognostic-biomarker-for-metastatic-castration-resistant-prostate-cancer
#12
Josef J Fox, Somali C Gavane, Estelle Blanc-Autran, Sadek Nehmeh, Mithat Gönen, Brad Beattie, Hebert A Vargas, Heiko Schöder, John L Humm, Samson W Fine, Jason S Lewis, Stephen B Solomon, Joseph R Osborne, Darren Veach, Charles L Sawyers, Wolfgang A Weber, Howard I Scher, Michael J Morris, Steven M Larson
Importance: Androgen receptor-signaling inhibitor (ARSi) drugs prolong life in metastatic castration-resistant prostate cancer (mCRPC), but such tumors eventually become resistant and progress. Comprehensive positron emission tomography/computed tomography (PET/CT) imaging using fluoro-2-D-deoxyglucose F 18 ([18F]-FDG) for glycolysis (Glyc) and fluorodihydrotestosterone F 18 ([18F]-FDHT) for androgen receptor (AR) expression determine heterogeneity of imaging phenotypes, which may be useful in distinguishing patients who will benefit from ARSi drugs from those who need alternative treatments...
November 9, 2017: JAMA Oncology
https://www.readbyqxmd.com/read/29118710/cognitive-vulnerability-in-aging-may-be-modulated-by-education-and-reserve-in-healthy-people
#13
María D Roldán-Tapia, Rosa Cánovas, Irene León, Juan García-Garcia
Aging is related to a deterioration of cognitive performance and to multiple alterations in the brain. Even before the beginning of a noticeable cognitive decline, the framework which holds cognitive function experiences these alterations. From a system-vulnerability point of view of cognition, the deterioration associated with age would be the collection of repercussions during a life. Brain function and structure are modified in a multidimensional way, which could concern different aspects like structural integrity, functional activity, connectivity, or glucose metabolism...
2017: Frontiers in Aging Neuroscience
https://www.readbyqxmd.com/read/29110819/metabolism-and-memory-obesity-diabetes-and-dementia
#14
Daniel Shalev, Melissa R Arbuckle
No abstract text is available yet for this article.
December 1, 2017: Biological Psychiatry
https://www.readbyqxmd.com/read/29110598/sirt1-as-a-therapeutic-target-in-diabetic-complications
#15
Justyna Strycharz, Żaneta Rygielska, Ewa Świderska, Józef Drzewoski, Janusz Szemraj, Leszek Szmigiero, Agnieszka Śliwińska
Background SIRT1 is an epigenetic enzyme involved in histone and non-histone protein deacetylation. It acts primarily as a metabolic sensor, which responses to changing energy status by deacetylating crucial transcription factors and cofactors. In this way, SIRT1 regulates mitochondrial function and biogenesis, oxidative stress, inflammation, apoptosis and cellular senescence. Disturbance of all of these phenomena promotes the pathogenesis of diabetic complications. These disorders are inseparably connected with chronic hyperglycemia, which possesses a strong epigenetic determinant...
November 6, 2017: Current Medicinal Chemistry
https://www.readbyqxmd.com/read/29110344/current-technical-approaches-to-brain-energy-metabolism
#16
REVIEW
L Felipe Barros, Juan P Bolaños, Gilles Bonvento, Anne-Karine Bouzier-Sore, Angus Brown, Johannes Hirrlinger, Sergey Kasparov, Frank Kirchhoff, Anne N Murphy, Luc Pellerin, Michael B Robinson, Bruno Weber
Neuroscience is a technology-driven discipline and brain energy metabolism is no exception. Once satisfied with mapping metabolic pathways at organ level, we are now looking to learn what it is exactly that metabolic enzymes and transporters do and when, where do they reside, how are they regulated, and how do they relate to the specific functions of neurons, glial cells, and their subcellular domains and organelles, in different areas of the brain. Moreover, we aim to quantify the fluxes of metabolites within and between cells...
November 7, 2017: Glia
https://www.readbyqxmd.com/read/29108460/prior-irradiation-results-in-elevated-programmed-cell-death-protein-1-pd-1-in-t-cells
#17
Deguan Li, Renxiang Chen, Yi-Wen Wang, Albert J Fornace, Heng-Hong Li
PURPOSE: In this study we addressed the question whether radiation-induced adverse effects on T cell activation are associated with alterations of T cell checkpoint receptors. MATERIALS AND METHODS: Expression levels of checkpoint receptors on T cell subpopulations were analyzed at multiple post-radiation time points ranging from one to four weeks in mice receiving a single fraction of 1 or 4 Gy of γ-ray. T cell activation associated metabolic changes were assessed...
November 7, 2017: International Journal of Radiation Biology
https://www.readbyqxmd.com/read/29107872/inflammation-and-gut-brain-axis-link-obesity-to-cognitive-dysfunction-plausible-pharmacological-interventions
#18
REVIEW
Maite Solas, Fermin I Milagro, María J Ramírez, J Alfredo Martínez
Obesity prevalence is increasing steadily throughout the world's population in most countries and in parallel the prevalence of metabolic disorders including cardiovascular diseases and type 2 diabetes is also rising, but less is reported about excessive adiposity relationship with poorer cognitive performance, cognitive decline and dementia. Some human clinical studies have evidenced that obesity is related to the risk of the development of mild cognitive impairment, in the form of short-term memory and executive function deficits, as well as dementia and Alzheimer's disease...
November 3, 2017: Current Opinion in Pharmacology
https://www.readbyqxmd.com/read/29107091/the-hypothalamus-as-the-primary-brain-region-of-metabolic-abnormalities-in-app-ps1-transgenic-mouse-model-of-alzheimer-s-disease
#19
Hong Zheng, Qi Zhou, Yao Du, Chen Li, Pengtao Xu, Li Lin, Jian Xiao, Hongchang Gao
Alzheimer's disease (AD) is an amyloid-related neurodegenerative disorder and is also considered to be a metabolic disease. Thus, investigation of metabolic mechanisms of amyloid pathology progression is of substantial importance for the diagnosis, prevention and treatment of AD. In the present study, cognitive function and brain metabolism were explored in the transgenic APP/PS1 mouse model of amyloid pathology at different ages. Using an NMR-based metabolomic approach, we examined metabolic changes in six different brain regions of wild-type and APP/PS1 mice at 1, 5 and 10months of age...
October 26, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/29101600/normal-diet-vs-high-fat-diet-a-comparative-study-behavioral-and-neuroimmunological-changes-in-adolescent-male-mice
#20
Huali Wu, Qiongzhen Liu, Praveen Kumar Kalavagunta, Qiaoling Huang, Wenting Lv, Xiaohong An, Haijuan Chen, Tao Wang, Rakotomalala Manda Heriniaina, Tong Qiao, Jing Shang
Recent evidence has established that consumption of High-fat diet (HFD)-induced obesity is associated with deficits in hippocampus-dependent memory/learning and mood states. Nevertheless the link between obesity and emotional disorders still remains to be elucidated. This issue is of particular interest during adolescence, which is important period for shaping learning/memory and mood regulation that can be sensitive to the detrimental effects of HFD. Our present study is focused to investigate behavioral and metabolic influences of short-term HFD intake in adolescent C57BL/6 mice...
November 3, 2017: Metabolic Brain Disease
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