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Alzheimers and diabetes

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https://www.readbyqxmd.com/read/29351484/the-serum-metabolomics-signature-of-type-2-diabetes-is-obscured-in-alzheimer-s-disease
#1
Jill K Morris, Brian D Piccolo, Kartik Shankar, John P Thyfault, Sean H Adams
There is evidence for systemic metabolic impairment in Alzheimer's disease (AD), and Type 2 Diabetes (T2D) increases AD risk. Although studies analyzing blood metabolomics signatures have shown differences between cognitively healthy (CH) and AD subjects, these signatures have not been compared to individuals with T2D. We utilized untargeted analysis platforms (primary metabolism and complex lipids) to characterize the serum metabolome of 126 overnight fasted elderly subjects classified into 4 groups based upon AD status (CH or AD) and T2D status (Nondiabetic [ND] or T2D)...
December 26, 2017: American Journal of Physiology. Endocrinology and Metabolism
https://www.readbyqxmd.com/read/29350557/omega-3-polyunsaturated-fatty-acids-and-their-health-benefits
#2
Fereidoon Shahidi, Priyatharini Ambigaipalan
Omega-3 polyunsaturated fatty acids (PUFAs) include α-linolenic acid (ALA; 18:3 ω-3), stearidonic acid (SDA; 18:4 ω-3), eicosapentaenoic acid (EPA; 20:5 ω-3), docosapentaenoic acid (DPA; 22:5 ω-3), and docosahexaenoic acid (DHA; 22:6 ω-3). In the past few decades, many epidemiological studies have been conducted on the myriad health benefits of omega-3 PUFAs. In this review, we summarized the structural features, properties, dietary sources, metabolism, and bioavailability of omega-3 PUFAs and their effects on cardiovascular disease, diabetes, cancer, Alzheimer's disease, dementia, depression, visual, and neurological development, as well as maternal and child health...
January 18, 2018: Annual Review of Food Science and Technology
https://www.readbyqxmd.com/read/29349888/distal-amyloid-%C3%AE-protein-fragments-template-amyloid-assembly
#3
Thanh D Do, Smriti Sangwan, Natália E C de Almeida, Alexandre I Ilitchev, Maxwell Giammona, Michael R Sawaya, Steven K Buratto, David S Eisenberg, Michael T Bowers
Amyloid formation is associated with devastating diseases such as Alzheimer's, Parkinson's and Type-2 diabetes. The large amyloid deposits found in patients suffering from these diseases have remained difficult to probe by structural means. Recent NMR models also predict heterotypic interactions from distinct peptide fragments but limited evidence of heterotypic packed sheets is observed in solution. Here we characterize two segments of the protein amyloid β (Aβ) known to form fibrils in Alzheimer's disease patients...
January 19, 2018: Protein Science: a Publication of the Protein Society
https://www.readbyqxmd.com/read/29338921/faster-progression-from-mci-to-probable-ad-for-carriers-of-a-single-nucleotide-polymorphism-associated-with-type-2-diabetes
#4
Hugo Girard, Olivier Potvin, Scott Nugent, Caroline Dallaire-Théroux, Stephen Cunnane, Simon Duchesne
Sporadic Alzheimer's disease (AD), as opposed to its autosomal dominant form, is likely caused by a complex interaction of genetic, environmental, and health lifestyle factors. Twin studies indicate that sporadic AD heritability could be between 58% and 79%, around half of which is explained by the ε4 allele of the apolipoprotein E (APOE4). We hypothesized that genes associated with known risk factors for AD, namely hypertension, hypercholesterolemia, obesity, diabetes, and cardiovascular disease, would contribute significantly to the remaining heritability...
December 7, 2017: Neurobiology of Aging
https://www.readbyqxmd.com/read/29338817/correlation-of-stress-hyperglycemia-after-ischemic-stroke-with-early-vascular-cognitive-impairment
#5
Yi Dong Zhou, Huai Wu Yuan, Ren Jie Ji, Ben Yan Luo
Objective To investigate the influence and forecast value of stress hyperglycemia on the early vascular cognitive impairment (VCI) in stroke patients.Methods Totally 422 patients with acute non-diabetic stroke were divided into three groups according to the fasting plasma glucose level:the euglycemia group (<6.1 mmol/L),the mild stress hyperglycemia group (6.1-7.0 mmol/L),and the severe stress hyperglycemia group (≥7.0 mmol/L).Mini-mental state examination,Alzheimer's disease rating scale cognitive subscale,and clinical dementia rating scale were used to evaluate early cognition in post-stroke patients,and patients were divided into three groups accordingly:normal cognitive function group,mild VCI group,and vascular dementia group...
December 20, 2017: Zhongguo Yi Xue Ke Xue Yuan Xue Bao. Acta Academiae Medicinae Sinicae
https://www.readbyqxmd.com/read/29335400/causal-associations-between-risk-factors-and-common-diseases-inferred-from-gwas-summary-data
#6
Zhihong Zhu, Zhili Zheng, Futao Zhang, Yang Wu, Maciej Trzaskowski, Robert Maier, Matthew R Robinson, John J McGrath, Peter M Visscher, Naomi R Wray, Jian Yang
Health risk factors such as body mass index (BMI) and serum cholesterol are associated with many common diseases. It often remains unclear whether the risk factors are cause or consequence of disease, or whether the associations are the result of confounding. We develop and apply a method (called GSMR) that performs a multi-SNP Mendelian randomization analysis using summary-level data from genome-wide association studies to test the causal associations of BMI, waist-to-hip ratio, serum cholesterols, blood pressures, height, and years of schooling (EduYears) with common diseases (sample sizes of up to 405,072)...
January 15, 2018: Nature Communications
https://www.readbyqxmd.com/read/29333090/gene-and-protein-expression-profiles-in-a-mouse-model-of-collagen-induced-arthritis
#7
Sun-Yeong Gwon, Ki-Jong Rhee, Ho Joong Sung
The risk of rheumatoid arthritis (RA), an autoimmune disease, in the elderly population increases along with that of atherosclerosis, cardiovascular disease, type 2 diabetes, and Alzheimer's disease. Identifying specific biomarkers for RA can clarify the underlying molecular mechanisms and can aid diagnosis and patient care. To this end, the present study investigated the genes and proteins that are differentially expressed in RA using a mouse collagen-induced arthritis (CIA) model. We performed gene microarray and proteome array analyses using blood samples from the mice and found that 50 genes and 24 proteins were upregulated and 48 genes were downregulated by more than 2-fold in the CIA model relative to the control...
2018: International Journal of Medical Sciences
https://www.readbyqxmd.com/read/29332593/facile-synthesis-crystal-structure-dft-calculation-and-biological-activities-of-4-2-fluorophenyl-3-3-methoxybenzyl-1h-1-2-4-triazol-5-4h-one-5
#8
Muhammad Saleem, Muhammad Rafiq, Yeon Ki Jeong, Dae Won Cho, Chong-Hyeak Kim, Sung-Yum Seo, Chang-Shik Choi, Seong-Karp Hong, Ki-Hwan Lee
BACKGROUND: In the past few decades, the design, synthesis and characterization of novel heterocyclic compounds with auspicious biological profile received the considerable attention of scientific community. Among them, the small and simple organic molecular backbone like triazole moiety have broad spectrum of applications in the medicinal as well as diagnostic areas. OBJECTIVE: The objective of present study was the synthesis, characterization and exploration of biological profile of 4-(2-fluorophenyl)-3-(3-methoxybenzyl)-1H-1,2,4-triazol-5(4H)-one (5)...
January 12, 2018: Medicinal Chemistry
https://www.readbyqxmd.com/read/29332042/protective-effects-of-indian-spice-curcumin-against-amyloid-%C3%AE-in-alzheimer-s-disease
#9
P Hemachandra Reddy, Maria Manczak, Xiangling Yin, Mary Catherine Grady, Andrew Mitchell, Sahil Tonk, Chandra Sekhar Kuruva, Jasvinder Singh Bhatti, Ramesh Kandimalla, Murali Vijayan, Subodh Kumar, Rui Wang, Jangampalli Adi Pradeepkiran, Gilbert Ogunmokun, Kavya Thamarai, Kandi Quesada, Annette Boles, Arubala P Reddy
The purpose of our article is to assess the current understanding of Indian spice, curcumin, against amyloid-β (Aβ)-induced toxicity in Alzheimer's disease (AD) pathogenesis. Natural products, such as ginger, curcumin, and gingko biloba have been used as diets and dietary supplements to treat human diseases, including cancer, cardiovascular, respiratory, infectious, diabetes, obesity, metabolic syndromes, and neurological disorders. Products derived from plants are known to have protective effects, including anti-inflammatory, antioxidant, anti-arthritis, pro-healing, and boosting memory cognitive functions...
2018: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/29331080/design-synthesis-and-evaluation-of-novel-oxazaborine-inhibitors-of-the-nlrp3-inflammasome
#10
Alex George Baldwin, Victor S Tapia, Tessa Swanton, Claire S White, James A Beswick, David Brough, Sally Freeman
The NLRP3 inflammasome is an important regulator of the sterile inflammatory response and its activation by host-derived sterile molecules leads to the intracellular activation of caspase-1, processing of the pro-inflammatory cytokines interleukin-1β (IL 1β)/IL-18, and pyroptotic cell death. Inappropriate activation of NLRP3 drives a chronic inflammatory response and is implicated in several non-communicable diseases, including gout, atherosclerosis, type II diabetes and Alzheimer's disease. In this study, we report the design, synthesis and biological evaluation of novel boron compounds (NBCs) as NLRP3 inflammasome inhibitors...
January 13, 2018: ChemMedChem
https://www.readbyqxmd.com/read/29329976/therapeutic-potential-of-spinal-glp-1-receptor-signaling
#11
REVIEW
Dongao Zhang, Gang Lv
GLP-1 signaling pathway has been well studied for its role in regulating glucose homeostasis, as well as its beneficial effects in energy and nutrient metabolism. A number of drugs based on GLP-1 have been used to treat type 2 diabetes mellitus. GLP-1R is expressed in multiple organs and numerous experimental studies have demonstrated that GLP-1 signaling pathway exhibits pro-survival functions in various disorders. In the central nervous system, stimulation of GLP-1R produces neuroprotective effects in specific neurodegenerative disorders, such as Alzheimer's disease and Parkinson's disease...
January 9, 2018: Peptides
https://www.readbyqxmd.com/read/29322938/mdd-carb-a-combinatorial-model-for-the-identification-of-protein-carbonylation-sites-with-substrate-motifs
#12
Hui-Ju Kao, Shun-Long Weng, Kai-Yao Huang, Fergie Joanda Kaunang, Justin Bo-Kai Hsu, Chien-Hsun Huang, Tzong-Yi Lee
BACKGROUND: Carbonylation, which takes place through oxidation of reactive oxygen species (ROS) on specific residues, is an irreversibly oxidative modification of proteins. It has been reported that the carbonylation is related to a number of metabolic or aging diseases including diabetes, chronic lung disease, Parkinson's disease, and Alzheimer's disease. Due to the lack of computational methods dedicated to exploring motif signatures of protein carbonylation sites, we were motivated to exploit an iterative statistical method to characterize and identify carbonylated sites with motif signatures...
December 21, 2017: BMC Systems Biology
https://www.readbyqxmd.com/read/29315246/recent-advances-in-electrochemical-biosensors-based-on-enzyme-inhibition-for-clinical-and-pharmaceutical-applications
#13
REVIEW
Loubna El Harrad, Ilhame Bourais, Hasna Mohammadi, Aziz Amine
A large number of enzyme inhibitors are used as drugs to treat several diseases such as gout, diabetes, AIDS, depression, Parkinson's and Alzheimer's diseases. Electrochemical biosensors based on enzyme inhibition are useful devices for an easy, fast and environment friendly monitoring of inhibitors like drugs. In the last decades, electrochemical biosensors have shown great potentials in the detection of different drugs like neostigmine, ketoconazole, donepezil, allopurinol and many others. They attracted increasing attention due to the advantage of being high sensitive and accurate analytical tools, able to reach low detection limits and the possibility to be performed on real samples...
January 9, 2018: Sensors
https://www.readbyqxmd.com/read/29311632/bace1-dependent-amyloid-processing-regulates-hypothalamic-leptin-sensitivity-in-obese-mice
#14
Paul J Meakin, Susan M Jalicy, Gemma Montagut, David J P Allsop, Daniella L Cavellini, Stuart W Irvine, Christopher McGinley, Mary K Liddell, Alison D McNeilly, Karolina Parmionova, Yu-Ru Liu, Charlotte L S Bailey, J Kim Dale, Lora K Heisler, Rory J McCrimmon, Michael L J Ashford
Obesity places an enormous medical and economic burden on society. The principal driver appears to be central leptin resistance with hyperleptinemia. Accordingly, a compound that reverses or prevents leptin resistance should promote weight normalisation and improve glucose homeostasis. The protease Bace1 drives beta amyloid (Aβ) production with obesity elevating hypothalamic Bace1 activity and Aβ1-42 production. Pharmacological inhibition of Bace1 reduces body weight, improves glucose homeostasis and lowers plasma leptin in diet-induced obese (DIO) mice...
January 8, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29306837/glycogen-synthase-kinase-3-and-its-inhibitors-potential-target-for-various-therapeutic-conditions
#15
REVIEW
A Prasanth Saraswati, S M Ali Hussaini, Namballa Hari Krishna, Bathini Nagendra Babu, Ahmed Kamal
Glycogen Synthase Kinase-3 (GSK-3) is a serine/threonine kinase which is ubiquitously expressed and is regarded as a regulator for various cellular events and signalling pathways. It exists in two isoforms, GSK-3α and GSK-3β and can phosphorylate a wide range of substrates. Aberrancy in the GSK-3 activity can lead to various diseases like Alzheimer's, diabetes, cancer, neurodegeneration etc., rendering it an attractive target to develop potent and specific inhibitors. The present review focuses on the recent developments in the area of GSK-3 inhibitors and also enlightens its therapeutic applicability in various disease conditions...
December 9, 2017: European Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/29295509/endocrine-disrupting-chemicals-mediated-through-binding-androgen-receptor-are-associated-with-diabetes-mellitus
#16
REVIEW
Sugunadevi Sakkiah, Tony Wang, Wen Zou, Yuping Wang, Bohu Pan, Weida Tong, Huixiao Hong
Endocrine disrupting chemicals (EDCs) can mimic natural hormone to interact with receptors in the endocrine system and thus disrupt the functions of the endocrine system, raising concerns on the public health. In addition to disruption of the endocrine system, some EDCs have been found associated with many diseases such as breast cancer, prostate cancer, infertility, asthma, stroke, Alzheimer's disease, obesity, and diabetes mellitus. EDCs that binding androgen receptor have been reported associated with diabetes mellitus in in vitro, animal, and clinical studies...
December 23, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/29285942/-non-alcoholic-fatty-liver-disease-as-a-component-of-the-metabolic-syndrome-and-its-causal-correlations-with-other-extrahepatic-diseases
#17
Tamás Halmos, Ilona Suba
Non-alcoholic fatty liver disease is the most common non-infectious chronic liver-disease in our age, and is a spectrum of all the diseases associated with increased fat accumulation in the hepatocytes. Its development is promoted by sedentary life-style, over-feeding, and certain genetic predisposition. Prevalence in the adult population, even in Hungary is ~30%. In a part of cases, this disease may pass into non-alcoholic steatohepatitis, later into fibrosis, rarely into primary hepatocellular cancer. Fatty liver is closely and bidirectionally related to the metabolic syndrome and type 2 diabetes, and nowadays there is a general consensus that fatty liver is the hepatic manifestation of the metabolic sycndrome...
December 2017: Orvosi Hetilap
https://www.readbyqxmd.com/read/29282295/common-fibrillar-spines-of-amyloid-%C3%AE-and-human-islet-amyloid-polypeptide-revealed-by-micro-electron-diffraction-and-inhibitors-developed-using-structure-based-design
#18
Pascal Krotee, Sarah L Griner, Michael R Sawaya, Duilio Cascio, Jose A Rodriguez, Dan Shi, Stephan Philipp, Kevin Murray, Lorena Saelices, Ji Lee, Paul Seidler, Charles G Glabe, Lin Jiang, Tamir Gonen, David S Eisenberg
Amyloid-β (Aβ) and human islet amyloid polypeptide (hIAPP) aggregate to form amyloid fibrils that deposit in tissues, and are associated with Alzheimer's disease (AD) and Type-II Diabetes (T2D), respectively. Individuals with T2D have an increased risk of developing AD, and conversely, AD patients have an increased risk of developing T2D. Evidence suggests that this link between AD and T2D might originate from a structural similarity between aggregates of Aβ and hIAPP. Using the cryoEM method Micro-Electron Diffraction (MicroED) we determined the atomic structures of 11-residue segments from both Aβ and hIAPP, termed Aβ 24-34 WT and hIAPP 19-29 S20G, with 64% sequence similarity...
December 27, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/29281341/functional-foods-and-nutraceuticals-as-dietary-intervention-in-chronic-diseases-novel-perspectives-for-health-promotion-and-disease-prevention
#19
Stephen Adeniyi Adefegha
Functional foods describe the importance of foods in promoting health and preventing diseases aside their primary role of providing the body with the required amount of essential nutrients such as proteins, carbohydrates, vitamins, fats, and oils needed for its healthy survival. This review explains the interaction of functional food bioactive compounds including polyphenols (phenolic acids [hydroxybenzoic acids and hydroxycinnamic acids], flavonoids [flavonols, flavones, flavanols, flavanones, isoflavones, proanthocyanidins], stilbenes, and lignans), terpenoids, carotenoids, alkaloids, omega-3 and polyunsaturated fatty acids, among others with critical enzymes (α- amylase, α- glucosidase, angiotensin-I converting enzyme [ACE], acetylcholinesterase [AChE], and arginase) linked to some degenerative diseases (type-2 diabetes, cardiovascular diseases [hypertension], neurodegenerative diseases [Alzheimer's disease] and erectile dysfunction)...
December 27, 2017: Journal of Dietary Supplements
https://www.readbyqxmd.com/read/29279429/-developing-exercise-mimicking-drugs-toward-realization-of-preemptive-medicine-for-lifestyle-related-diseases
#20
Masato Iwabu, Toshimasa Yamauchi, Miki Okada-Iwabu, Takashi Kadowaki
Modern society is characterized by an explosion of lifestyle-related diseases that have, as their basis, obesity due to lack of exercise, which include the metabolic syndrome, diabetes, cardiovascular disease, cancer, and Alzheimer's disease. While exercise is known to be a definitive preventive or therapeutic measure against these diseases, it is clear that contemporary lifestyles tend to make exercise rather difficult to continue. Thus, there are mounting expectations worldwide for exercise-mimicking drugs that activate exercise-mediated signaling pathways...
2018: Clinical Calcium
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