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Alzheimers and alcohol

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https://www.readbyqxmd.com/read/29783682/heat-shock-gene-inactivation-and-protein-aggregation-with-links-to-chronic-diseases
#1
Ian James Martins
The heat shock response involved in protein misfolding is linked to the formation of toxic immunogenic proteins with heat shock proteins (HSP) as regulators of amyloid beta aggregation. The defective amyloid beta trafficking between different intracellular compartments is now relevant to HSPs and autoimmunity. Overnutrition, temperature dysregulation, and stress repress the heat shock gene Sirtuin 1 with the induction of HSP regulated amyloid beta aggregation involved in the autoimmune response. Defective circadian rhythm alterations are connected to inactivation of the peripheral sink amyloid beta clearance pathway and related to insulin resistance, protein aggregation, and autoimmune disease in non-alcoholic fatty liver disease (NAFLD) and various neurodegenerative diseases such as Alzheimer's disease...
May 18, 2018: Diseases (Basel)
https://www.readbyqxmd.com/read/29759078/transcriptome-analysis-of-alcohol-treated-microglia-reveals-downregulation-of-beta-amyloid-phagocytosis
#2
Sergey Kalinin, Marta González-Prieto, Hannah Scheiblich, Lucia Lisi, Handojo Kusumo, Michael T Heneka, Jose L M Madrigal, Subhash C Pandey, Douglas L Feinstein
BACKGROUND: Microglial activation contributes to the neuropathology associated with chronic alcohol exposure and withdrawal, including the expression of inflammatory and anti-inflammatory genes. In the current study, we examined the transcriptome of primary rat microglial cells following incubation with alcohol alone, or alcohol together with a robust inflammatory stimulus. METHODS: Primary microglia were prepared from mixed rat glial cultures. Cells were incubated with 75 mM ethanol alone or with proinflammatory cytokines ("TII": IL1β, IFNγ, and TNFα)...
May 14, 2018: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/29667758/synthesis-of-enantiomerically-enriched-drug-precursors-by-lactobacillus-paracasei-bd87e6-as-a-biocatalyst
#3
Selda Öksüz, Engin Şahin, Enes Dertli
Global sales of single enantiomeric drug products are growing at an alarming rate every year. A total of 7 bacterial strains were screened for their ability to reduce acetophenones to its corresponding alcohol. Among these strain Lactobacillus paracasei BD87E6 was found to be the most successful biocatalyst to reduce the ketones to the corresponding alcohols. The reaction conditions were systematically optimized for the reducing agent Lactobacillus paracasei BD87E6, which showed high enantioselectivity and conversion for the bioreduction...
April 18, 2018: Chemistry & Biodiversity
https://www.readbyqxmd.com/read/29625269/design-synthesis-and-evaluation-of-pterostilbene-%C3%AE-amino-alcohol-derivatives-as-multifunctional-agents-for-alzheimer-s-disease-treatment
#4
Yunxiaozhu Zheng, Xiaoming Qiang, Rui Xu, Qing Song, Chaoquan Tian, Hongyan Liu, Wei Li, Zhenghuai Tan, Yong Deng
A series of pterostilbene β-amino alcohol derivatives were designed, synthesized and evaluated as multifunctional agents for the treatment of Alzheimer's disease (AD). In vitro assays demonstrated that most of the derivatives were selective acetylacholinesterase (AChE) inhibitors with moderate multifunctional properties. Among them, compound 5f exhibited the best inhibitory activity for EeAChE (IC50  = 24.04 μM), that was better than pterostilbene under our experimental condition. In addition, compound 5f displayed reasonable antioxidant activity and could confer significant neuroprotective effect against H2 O2 -induced PC-12 cell injury...
March 28, 2018: Bioorganic Chemistry
https://www.readbyqxmd.com/read/29614682/non-genetic-risk-factors-for-degenerative-and-vascular-young-onset-dementia-results-from-the-inspired-and-kgow-studies
#5
Monica Cations, Brian Draper, Lee-Fay Low, Kylie Radford, Julian Trollor, Henry Brodaty, Perminder Sachdev, Peter Gonski, Gerald Anthony Broe, Adrienne Withall
BACKGROUND: Several brain reserve, vascular risk, and other modifiable factors have been associated with late-onset dementia, but their association with young onset dementia (YOD) has not been adequately explored. OBJECTIVE: To examine the association of cognitive reserve enhancing factors, cardiovascular risk factors (including smoking), depression, alcohol use, and traumatic brain injury (TBI) with non-autosomal dominant degenerative and/or vascular YOD. METHODS: Data for this matched case-control study were taken from two larger studies conducted in NSW, Australia...
2018: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/29600750/terpenes-phenylpropanoids-sulfur-and-other-essential-oil-constituents-as-inhibitors-of-cholinesterases
#6
Olivera Politeo, Franko Burcul, Ivica Blazevic, Mila Radan
Essential oils constituents are a diverse family of low molecular weight organic compounds with comprehensive biological activity. According to their chemical structure these active compounds can be divided into four major groups: terpenes, terpenoids, phenylpropenes, and "others". In addition, they may contain diverse functional groups according to which they can be classified as hydrocarbons (monoterpenes, sesquiterpenes, and aliphatic hydrocarbons); oxygenated compounds (monoterpene and sesquiterpene alcohols, aldehydes, ketones, esters, and other oxygenated compounds); and sulfur and/or nitrogen sulfur-containing compounds (thioesters, sulfides, isothiocyantes, nitriles, and others)...
March 29, 2018: Current Medicinal Chemistry
https://www.readbyqxmd.com/read/29564993/risk-of-dementia-associated-with-psychotic-disorders-in-later-life-the-health-in-men-study-hims
#7
Osvaldo P Almeida, Andrew H Ford, Graeme J Hankey, Bu B Yeap, Jonathan Golledge, Leon Flicker
BACKGROUND: Recent research has identified several potentially modifiable risk factors for dementia, including mental disorders. Psychotic disorders, such as schizophrenia and delusional disorder, have also been associated with increased risk of cognitive impairment and dementia, but currently available data difficult to generalise because of bias and confounding. We designed the present study to investigate if the presence of a psychotic disorder increased the risk of incident dementia in later life...
March 22, 2018: Psychological Medicine
https://www.readbyqxmd.com/read/29536773/1-benzo-d-thiazol-2-yl-3-phenylureas-as-dual-inhibitors-of-casein-kinase-1-and-abad-enzymes-for-treatment-of-neurodegenerative-disorders
#8
Ondrej Benek, Lukas Hroch, Laura Aitken, Frank Gunn-Moore, Lucie Vinklarova, Kamil Kuca, Daniel I Perez, Concepcion Perez, Ana Martinez, Zdenek Fisar, Kamil Musilek
Several neurodegenerative disorders including Alzheimer's disease (AD) have been connected with deregulation of casein kinase 1 (CK1) activity. Inhibition of CK1 therefore presents a potential therapeutic strategy against such pathologies. Recently, novel class of CK1-specific inhibitors with N-(benzo[d]thiazol-2-yl)-2-phenylacetamide structural scaffold has been discovered. 1-(benzo[d]thiazol-2-yl)-3-phenylureas, on the other hand, are known inhibitors amyloid-beta binding alcohol dehydrogenase (ABAD), an enzyme also involved in pathophysiology of AD...
December 2018: Journal of Enzyme Inhibition and Medicinal Chemistry
https://www.readbyqxmd.com/read/29509552/effects-of-essential-ad2-supplement-on-blood-acetaldehyde-levels-in-individuals-who-have-aldehyde-dehydrogenase-aldh2-deficiency
#9
Ken Fujioka, Spencer Gordon
BACKGROUND: It is estimated that 1 billion people in the world have a point mutation in the gene encoding the aldehyde dehydrogenase 2 (ALDH2) enzyme, the primary enzyme responsible for the metabolism of acetaldehyde. The presence of this mutation is called ALDH2 deficiency. Because of limited ability to metabolize acetaldehyde, individuals with ALDH2 deficiency experience elevated levels of blood acetaldehyde after exposure to various common sources such as recreational alcohol. Because of higher levels of acetaldehyde, individuals with ALDH2 deficiency are at higher risk for numerous diseases, including liver cirrhosis, esophageal and gastric cancer, osteoporosis, and Alzheimer disease...
February 21, 2018: American Journal of Therapeutics
https://www.readbyqxmd.com/read/29493153/-research-on-improving-memory-impairment-of-blue-lavender-volatile-oil
#10
Li-Yun Zhu, Yong-Sheng Gao, Lin-Zhen Song, Su-Fang Li, Jun-Qing Qian
In order to study the potential application value of lavender volatile oil (LVO), the chemical composition of the volatile oil of lavender was analyzed by GC-MS, and the mouse model of Alzheimer's disease (AD) was established. Additionally, the antioxidant enzymes activity of T-SOD, GSH-PX, CAT and MDA content were studied. Experimental results showed that 55 kinds of chemical constituents including terpene, terpene alcohol and ester compounds from LVO were identified, and the content of linalool and linalyl acetate was the highest, accounting for 49...
December 2017: Zhongguo Zhong Yao za Zhi, Zhongguo Zhongyao Zazhi, China Journal of Chinese Materia Medica
https://www.readbyqxmd.com/read/29484137/alzheimer-s-disease-is-associated-with-prostate-cancer-a-population-based-study
#11
Herng-Ching Lin, Li-Ting Kao, Shiu-Dong Chung, Chung-Chien Huang, Ben-Chang Shia, Chao-Yuan Huang
Alzheimer's disease and cancer are increasingly prevalent with advancing age. However, the association between Alzheimer's disease and prostate cancer remains unclear. The aim of this study was to examine the relationship between prior Alzheimer's disease and subsequent prostate cancer using a population-based dataset in Taiwan. Data for this study were sourced from the Taiwan Longitudinal Health Insurance Database 2005. This case-control study included 2101 prostate cancer patients as cases and 6303 matched controls...
January 26, 2018: Oncotarget
https://www.readbyqxmd.com/read/29480196/roles-of-mitochondrial-17%C3%AE-hydroxysteroid-dehydrogenase-type-10-in-alzheimer-s-disease
#12
Xue-Ying He, Charles Isaacs, Song-Yu Yang
17β-Hydroxysteroid dehydrogenase type 10 is a multifunctional, homotetrameric, mitochondrial protein encoded by the HSD17B10 gene at Xp 11.2. This protein, 17β-HSD10, is overexpressed in brain cells of Alzheimer's disease (AD) patients. It was reported to be involved in AD pathogenesis as the endoplasmic reticulum-associated amyloid-β binding protein (ERAB) and as amyloid-β binding alcohol dehydrogenase (ABAD). However, the exaggerated catalytic efficiencies for ERAB/ABAD in these reports necessitated the re-characterization of the catalytic functions of this brain enzyme...
2018: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/29475810/contribution-of-alcohol-use-disorders-to-the-burden-of-dementia-in-france-2008-13-a-nationwide-retrospective-cohort-study
#13
Michaël Schwarzinger, Bruce G Pollock, Omer S M Hasan, Carole Dufouil, Jürgen Rehm
BACKGROUND: Dementia is a prevalent condition, affecting 5-7% of people aged 60 years and older, and a leading cause of disability in people aged 60 years and older globally. We aimed to examine the association between alcohol use disorders and dementia risk, with an emphasis on early-onset dementia (<65 years). METHODS: We analysed a nationwide retrospective cohort of all adult (≥20 years) patients admitted to hospital in metropolitan France between 2008 and 2013...
March 2018: Lancet. Public Health
https://www.readbyqxmd.com/read/29442790/fabrication-of-electrochemical-biosensor-with-zno-pva-nanocomposite-interface-for-the-detection-of-hydrogen-peroxide
#14
Navin Kishore Sekar, Manju Bhargavi Gumpu, Bhat Lakshmishri Ramachandra, Noel Nesakumar, Prabakaran Sankar, K Jayanth Babu, Uma Maheswari Krishnan, John Bosco Balaguru Rayappan
Hydrogen peroxide (H2O2) is considered to be highly toxic and its increased concentration in human body may lead to diseases like alzheimer's, parkinson's, cardiovascular, tumor and cancer. Hence, there is an increasing demand for the detection of H2O2 in human blood serum. In this context, an electrochemical sensor was developed using zinc oxide-polyvinyl alcohol (ZnO-PVA) nanocomposite as a nano-interface. The fabricated Au/ZnO-PVA/CAT/Chitosan bio-electrode exhibited a well-defined redox peak with anodic and cathodic peak potential of -0...
June 1, 2018: Journal of Nanoscience and Nanotechnology
https://www.readbyqxmd.com/read/29435942/identification-and-isolation-of-novel-sugar-like-rna-protecting-materials-glycylglycerins-from-pluripotent-stem-cells
#15
Shi-Lung Lin
Pluripotent stem cells are a resourceful treasure box for regenerative medicine. They contain a large variety of novel materials useful for designing and developing new medicines and therapies directed against many aging-associated degenerative disorders, including Alzheimer's disease, Parkinson's disease, stroke, diabetes, osteoporosis, and cancers. Currently, identification of these novel stem cell-specific materials is one of major breakthroughs in the field of stem cell research. Particularly, since the discovery of induced pluripotent stem cells (iPSC) in year 2006, the methods of iPSC derivation further provide an unlimited resource for screening, isolating, and even producing theses novel stem cell-specific materials in vitro...
2018: Methods in Molecular Biology
https://www.readbyqxmd.com/read/29432500/large-animals-as-potential-models-of-human-mental-and-behavioral-disorders
#16
REVIEW
Michał Danek, Janusz Danek, Aleksander Araszkiewicz
Many animal models in different species have been developed for mental and behavioral disorders. This review presents large animals (dog, ovine, swine, horse) as potential models of this disorders. The article was based on the researches that were published in the peer-reviewed journals. Aliterature research was carried out using the PubMed database. The above issues were discussed in the several problem groups in accordance with the WHO International Statistical Classification of Diseases and Related Health Problems 10thRevision (ICD-10), in particular regarding: organic, including symptomatic, disorders; mental disorders (Alzheimer's disease and Huntington's disease, pernicious anemia and hepatic encephalopathy, epilepsy, Parkinson's disease, Creutzfeldt-Jakob disease); behavioral disorders due to psychoactive substance use (alcoholic intoxication, abuse of morphine); schizophrenia and other schizotypal disorders (puerperal psychosis); mood (affective) disorders (depressive episode); neurotic, stress-related and somatoform disorders (posttraumatic stress disorder, obsessive-compulsive disorder); behavioral syndromes associated with physiological disturbances and physical factors (anxiety disorders, anorexia nervosa, narcolepsy); mental retardation (Cohen syndrome, Down syndrome, Hunter syndrome); behavioral and emotional disorders (attention deficit hyperactivity disorder)...
December 30, 2017: Psychiatria Polska
https://www.readbyqxmd.com/read/29400641/diagnosis-makes-a-difference-perceptions-of-older-persons-with-dementia-symptoms
#17
Jed A Diekfuss, Jessica De Larwelle, Susan H McFadden
Background/Study Context: Employing the stereotype content model and terror management theory, we examined whether stereotypes and feelings about persons with dementia vary depending on the type of dementia diagnosis and purported causes of the dementia. METHODS: Participants were randomly assigned to read one of four vignettes that depicted a man who consulted his doctor because of memory problems. All vignettes described the same symptoms and diagnostic tests, but each of four groups read a different result: all tests normal (Normal); Alzheimer's disease (AD); Wernicke-Korsakoff Syndrome (WKS) associated with alcohol abuse; and chronic traumatic encephalopathy (CTE) associated with head injuries from playing football in high school and college...
March 2018: Experimental Aging Research
https://www.readbyqxmd.com/read/29399064/venom-based-neural-modulators
#18
Jiao Chen, Xiao-Ming Liu, Yuan Zhang
Different types of neuronal nicotinic acetylcholine receptors (nAChRs) are expected to occur in vivo , most structure-activity relationship studies have been carried out for just a few neuronal subtypes. The present review enlightens current aspects of venom modulators of nAChRs. Important electronic databases such as PubMed or Google scholar were explored for the collection of latest studies in the field. Clinical and basic research has shown that cholinergic receptors play a role in several disorders of the nervous system such as chronic pain, Alzheimers disease and addiction to nicotine, alcohol and drugs...
January 2018: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/29358714/identification-of-disulfiram-as-a-secretase-modulating-compound-with-beneficial-effects-on-alzheimer-s-disease-hallmarks
#19
Sven Reinhardt, Nicolai Stoye, Mathias Luderer, Falk Kiefer, Ulrich Schmitt, Klaus Lieb, Kristina Endres
ADAM10 is a metalloproteinase acting on the amyloid precursor protein (APP) as an alpha-secretase in neurons. Its enzymatic activity results in secretion of a neuroprotective APP cleavage product (sAPP-alpha) and prevents formation of the amyloidogenic A-beta peptides, major hallmarks of Alzheimer's disease (AD). Elevated ADAM10 levels appeared to contribute to attenuation of A-beta-plaque formation and learning and memory deficits in AD mouse models. Therefore, it has been assumed that ADAM10 might represent a valuable target in AD therapy...
January 22, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29349578/in-situ-tissue-labeling-of-cerebral-amyloid-using-hiv-related-tat-peptide
#20
E Maderna, L Colombo, A Cagnotto, G Di Fede, A Indaco, F Tagliavini, M Salmona, G Giaccone
Delivering peptide-based drugs to the brain is a major challenge because of the existence of the blood-brain barrier (BBB). To overcome this problem, cell-penetrating peptides derived from proteins that are able to cross biological membranes have been used as cell-permeable and brain-penetrant compounds. An example is the transactivator of transcription protein transduction domain (Tat) of the human immunodeficiency virus. The basic domain of Tat is formed of arginine and lysine amino acid residues. Tat has been used as brain-penetrant carrier also in therapies for Alzheimer disease (AD), the most common form of dementia characterized by extracellular cerebral deposits of amyloid made up of Aβ peptide...
January 19, 2018: Molecular Neurobiology
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