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Alzheimers and diabetes

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https://www.readbyqxmd.com/read/28936398/vitamin-d-is-associated-with-severity-and-mortality-of-non-alcoholic-fatty-liver-disease-a-us-population-based-study
#1
Hyun-Seok Kim, Laura Rotundo, Neil Kothari, Sung-Hoon Kim, Nikolaos Pyrsopoulos
Background and Aims: There has been increasing evidence that vitamin D deficiency may increase the risk of metabolic syndrome. Since metabolic syndrome is a major risk factor for non-alcoholic fatty liver disease (NAFLD), we aimed to investigate the association between vitamin D and the severity and mortality of NAFLD. Methods: Data was obtained from the United States Third National Health and Nutrition Examination Survey conducted in 1988-1994, with follow-up mortality data through 2011. NAFLD was defined by ultrasonographic detection of hepatic steatosis in the absence of other liver diseases and categorized as normal, mild, moderate or severe...
September 28, 2017: Journal of Clinical and Translational Hepatology
https://www.readbyqxmd.com/read/28934715/stercoral-perforation-of-the-rectosigmoid-colon-due-to-chronic-constipation-a-case-report
#2
Mustafa Fevzi Celayir, Hakan Mustafa Köksal, Mehmet Uludag
INTRODUCTION: Chronic constipation is very common in elderly patients. As a result of this situation fecaloma is also frequently seen at these ages. However, the stercoral perforation caused by fecaloma is a rare situation to occur. The rectosigmoid colon is the most affected colonic segment. It is seen in older patients with concomitant diseases and a low quality of life. PRESENTATION OF CASE: Here in this case, we have to report an 83 - year-old male patient who came to the emergency room with complaints of abdominal pain and constipation for two days...
September 14, 2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/28933063/diabesity-and-brain-energy-metabolism-the-case-of-alzheimer-s-disease
#3
Susana Cardoso, Raquel Seiça, Paula I Moreira
It is widely accepted that high calorie diets and a sedentary lifestyle sturdily influence the incidence and outcome of type 2 diabetes and obesity, which can occur simultaneously, a situation called diabesity. Tightly linked with metabolic and energy regulation, a close association between diabetes and Alzheimer's disease (AD) has been proposed. Among the common pathogenic mechanisms that underpin both conditions, insulin resistance, brain glucose hypometabolism, and metabolic dyshomeostasis appear to have a pivotal role...
2017: Advances in Neurobiology
https://www.readbyqxmd.com/read/28927401/oxidative-toxicity-in-diabetes-and-alzheimer-s-disease-mechanisms-behind-ros-rns-generation
#4
REVIEW
Waqar Ahmad, Bushra Ijaz, Khadija Shabbiri, Fayyaz Ahmed, Sidra Rehman
Reactive oxidative species (ROS) toxicity remains an undisputed cause and link between Alzheimer's disease (AD) and Type-2 Diabetes Mellitus (T2DM). Patients with both AD and T2DM have damaged, oxidized DNA, RNA, protein and lipid products that can be used as possible disease progression markers. Although the oxidative stress has been anticipated as a main cause in promoting both AD and T2DM, multiple pathways could be involved in ROS production. The focus of this review is to summarize the mechanisms involved in ROS production and their possible association with AD and T2DM pathogenesis and progression...
September 19, 2017: Journal of Biomedical Science
https://www.readbyqxmd.com/read/28926869/purification-and-characterization-of-the-soluble-form-of-the-receptor-for-advanced-glycation-end-products-srage-a-novel-fast-economical-and-convenient-method
#5
Varun Kumar, Alba Sulaj, Thomas Fleming, Peter P Nawroth
The receptor for advanced glycation end-products (RAGE) is a multi-ligand receptor which belongs to the pattern recognition receptor family and can bind to various ligands such as advanced glycation end-products (AGEs), members of the S100 protein family, glycosaminoglycans, amyloid β peptides, high-mobility group box-1 (HMGB1) and nucleic acids through its extracellular domain. The RAGE-ligand interaction leads to the activation of MAP kinase and NF-kB signaling pathways. Further ligand-induced up-regulation of RAGE is involved in various patho-physiological situations including late diabetic complications, Alzheimer disease and several other neurodegenerative diseases...
September 19, 2017: Experimental and Clinical Endocrinology & Diabetes
https://www.readbyqxmd.com/read/28922161/comorbidity-analysis-between-alzheimer-s-disease-and-type-2-diabetes-mellitus-t2dm-based-on-shared-pathways-and-the-role-of-t2dm-drugs
#6
Reagon Karki, Alpha Tom Kodamullil, Martin Hofmann-Apitius
BACKGROUND: Various studies suggest a comorbid association between Alzheimer's disease (AD) and type 2 diabetes mellitus (T2DM) indicating that there could be shared underlying pathophysiological mechanisms. OBJECTIVE: This study aims to systematically model relevant knowledge at the molecular level to find a mechanistic rationale explaining the existing comorbid association between AD and T2DM. METHOD: We have used a knowledge-based modeling approach to build two network models for AD and T2DM using Biological Expression Language (BEL), which is capable of capturing and representing causal and correlative relationships at both molecular and clinical levels from various knowledge resources...
September 8, 2017: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/28919117/global-regional-and-national-incidence-prevalence-and-years-lived-with-disability-for-328-diseases-and-injuries-for-195-countries-1990-2016-a-systematic-analysis-for-the-global-burden-of-disease-study-2016
#7
(no author information available yet)
BACKGROUND: As mortality rates decline, life expectancy increases, and populations age, non-fatal outcomes of diseases and injuries are becoming a larger component of the global burden of disease. The Global Burden of Diseases, Injuries, and Risk Factors Study 2016 (GBD 2016) provides a comprehensive assessment of prevalence, incidence, and years lived with disability (YLDs) for 328 causes in 195 countries and territories from 1990 to 2016. METHODS: We estimated prevalence and incidence for 328 diseases and injuries and 2982 sequelae, their non-fatal consequences...
September 16, 2017: Lancet
https://www.readbyqxmd.com/read/28918230/biosensing-methods-for-determination-of-triglycerides-a-review
#8
REVIEW
C S Pundir, Vinay Narwal
Triglycerides (TGs) are the major transporters of dietary fats throughout the bloodstream. Besides transporting fat, TGs also act as stored fat in adipose tissue, which is utilized during insufficient carbohydrates supply. TG level is below 150mg/dL in healthy persons. Elevated TGs level in blood over 500mg/dL is a biomarker for cardiovascular diseases, Alzheimer disease, pancreatitis and diabetes. Numerous methods are accessible for recognition of TGs, among them, most are cumbersome, time-consuming, require sample pre-treatment, high cost instrumental set-up and experienced personnel to operate...
September 9, 2017: Biosensors & Bioelectronics
https://www.readbyqxmd.com/read/28918172/melatonin-and-periodontal-tissues-molecular-and-clinical-perspectives
#9
REVIEW
Agata Rita Carpentieri, María Elena Peralta Lopez, Javier Aguilar, Verónica Mariana Solá
Periodontal disease is a frequent chronic inflammatory pathology that implies the destruction of the tissues supporting the teeth, which represents a high sanitary cost. It usually appears associated with other systemic conditions such as diabetes, metabolic syndrome, depression and Alzheimer disease among others. The presence of melatonin and its receptors in the oral cavity supports the hypothesis that this hormone could play a role in homeostasis of periodontal tissues. In the present review we will discuss the potential role of melatonin, a circadian synchronizing hormone, with proved antiinflammatory and antioxidant profile, in the pathogenesis and treatment of periodontitis...
September 13, 2017: Pharmacological Research: the Official Journal of the Italian Pharmacological Society
https://www.readbyqxmd.com/read/28916531/diabetes-prediabetes-and-brain-volumes-and-subclinical-cerebrovascular-disease-on-mri-the-atherosclerosis-risk-in-communities-neurocognitive-study-aric-ncs
#10
Andrea L C Schneider, Elizabeth Selvin, A Richey Sharrett, Michael Griswold, Josef Coresh, Clifford R Jack, David Knopman, Thomas Mosley, Rebecca F Gottesman
OBJECTIVE: To examine the associations of prediabetes, diabetes, and diabetes severity (as assessed by HbA1c and diabetes duration) with brain volumes and vascular pathology on brain MRI and to assess whether the associations of diabetes with brain volumes are mediated by brain vascular pathology. RESEARCH DESIGN AND METHODS: Cross-sectional study of 1,713 participants in the Atherosclerosis Risk in Communities Neurocognitive Study (mean age 75 years, 60% female, 27% black, 30% prediabetes, and 35% diabetes) who underwent 3T brain MRI scans in 2011-2013...
September 15, 2017: Diabetes Care
https://www.readbyqxmd.com/read/28911974/molecular-genetics-of-the-transcription-factor-glis3-identifies-its-dual-function-in-beta-cells-and-neurons
#11
Sophie Calderari, Massimiliano Ria, Christelle Gérard, Tatiane C Nogueira, Olatz Villate, Stephan C Collins, Helen Neil, Nicolas Gervasi, Christophe Hue, Nicolas Suarez-Zamorano, Cécilia Prado, Miriam Cnop, Marie-Thérèse Bihoreau, Pamela J Kaisaki, Jean-Baptiste Cazier, Cécile Julier, Mark Lathrop, Michel Werner, Decio L Eizirik, Dominique Gauguier
The GLIS family zinc finger 3 isoform (GLIS3) is a risk gene for Type 1 and Type 2 diabetes, glaucoma and Alzheimer's disease endophenotype. We identified GLIS3 binding sites in insulin secreting cells (INS1) (FDR q<0.05; enrichment range 1.40-9.11 fold) sharing the motif wrGTTCCCArTAGs, which were enriched in genes involved in neuronal function and autophagy and in risk genes for metabolic and neuro-behavioural diseases. We confirmed experimentally Glis3-mediated regulation of the expression of genes involved in autophagy and neuron function in INS1 and neuronal PC12 cells...
September 11, 2017: Genomics
https://www.readbyqxmd.com/read/28901253/bacterial-toxins-a-hope-towards-angiogenic-ailments
#12
Rekha Khandia, Ashok Kumar Munjal, Kuldeep Dhama, Yashpal Singh Malik
Angiogenesis is a vital physiological process essential for growth and maintenance of the body. It plays an important role during embryonic development and generally absent in adults with some exceptions like during wound repair and menstrual cycle in women. Excess as well as deficiency in angiogenesis, result in pathological conditions. It is a tightly regulated process; rely on cascade of several molecular signalling pathways involving many effectors like VEGF, FGF, PDGF, IGF etc. Excessive angiogenesis is associated with disorders like tumor, atherosclerosis, rheumatoid arthritis, diabetic retinopathy, endometriosis, psoriasis, adiposity...
September 11, 2017: Current Drug Metabolism
https://www.readbyqxmd.com/read/28899812/the-starving-brain-overfed-meets-undernourished-in-the-pathology-of-mild-cognitive-impairment-mci-and-alzheimer-s-disease-ad
#13
REVIEW
Kelly J Gibas
Type II Diabetes affects 400 million people worldwide (IDF, 2013). The pathology is paradoxical: internal starvation activated by overfeeding. Hyperinsulinemic impairments of glucose homeostasis are treated with anti-hyperglycemics exacerbating cell starvation, inducing hypoglycemia and raising respiratory quotient. Reductions in hyperglycemia are achieved at the expense of glucose dependency and metabolic inflexibility (Gibas & Gibas, 2017). The brain is not immune from these cycles of starvation. The bioenergetic model characterizes propagation of late-onset, sporadic Alzheimer's disease as loss of molecular fidelity and compromised energy originating in brain networks with highest metabolic demand...
September 9, 2017: Neurochemistry International
https://www.readbyqxmd.com/read/28894508/protein-posttranslational-modifications-roles-in-aging-and-age-related-disease
#14
REVIEW
Ana L Santos, Ariel B Lindner
Aging is characterized by the progressive decline of biochemical and physiological function in an individual. Consequently, aging is a major risk factor for diseases like cancer, obesity, and type 2 diabetes. The cellular and molecular mechanisms of aging are not well understood, nor is the relationship between aging and the onset of diseases. One of the hallmarks of aging is a decrease in cellular proteome homeostasis, allowing abnormal proteins to accumulate. This phenomenon is observed in both eukaryotes and prokaryotes, suggesting that the underlying molecular processes are evolutionarily conserved...
2017: Oxidative Medicine and Cellular Longevity
https://www.readbyqxmd.com/read/28890694/erythrocytes-as-potential-link-between-diabetes-and-alzheimer-s-disease
#15
REVIEW
Cristiana Carelli-Alinovi, Francesco Misiti
Many studies support the existence of an association between type 2 diabetes (T2DM) and Alzheimer's disease (AD). In AD, in addition to brain, a number of peripheral tissues and cells are affected, including red blood cell (RBC) and because there are currently no reliable diagnostic biomarkers of AD in the blood, a gradually increasing attention has been given to the study of RBC's alterations. Recently it has been evidenced in diabetes, RBC alterations superimposable to the ones occurring in AD RBC. Furthermore, growing evidence suggests that oxidative stress plays a pivotal role in the development of RBC's alterations and vice versa...
2017: Frontiers in Aging Neuroscience
https://www.readbyqxmd.com/read/28886871/daf-in-diabetic-patients-is-subject-to-glycation-inactivation-at-its-active-site-residues
#16
Rudolf Flückiger, Enzo Cocuzzi, Ram H Nagaraj, Menachem Shoham, Timothy S Kern, M Edward Medof
Decay accelerating factor (DAF or CD55) is a cell associated C3 and C5 convertase regulator originally described in terms of protection of self-cells from systemic complement but now known to modulate adaptive T cell responses. It is expressed on all cell types. We investigated whether nonenzymatic glycation could impair its function and potentially be relevant to complications of diabetes mellitus and other conditions that result in nonenzymatic glycation including cancer, Alzheimer's disease, and aging. Immunoblots of affinity-purified DAF from erythrocytes of patients with diabetes showed pentosidine, glyoxal-AGEs, carboxymethyllysine, and argpyrimidine...
September 5, 2017: Molecular Immunology
https://www.readbyqxmd.com/read/28884862/a-pathogenic-mechanism-potentially-operative-in-multiple-progressive-diseases-and-its-therapeutic-implications
#17
REVIEW
Richard N Re
A variety of peptide signaling moieties that we have termed intracrines can act in the interiors of their cells of synthesis or of target cells after internalization. These intracrine factors are known to be upregulated in such disorders as diabetic nephropathy, systolic heart failure, and age-related macular degeneration. Indeed, a similar set of intracrines is upregulated in each of these disorders, suggesting a commonality of mechanism. In addition, several chronic neurodegenerative disorders such as Alzheimer disease and Parkinson disease involve intercellular trafficking of intracellular disease-causing proteins...
September 8, 2017: Journal of Clinical Pharmacology
https://www.readbyqxmd.com/read/28871222/reproducibility-of-single-pulse-paired-pulse-and-intermittent-theta-burst-tms-measures-in-healthy-aging-type-2-diabetes-and-alzheimer-s-disease
#18
Peter J Fried, Ali Jannati, Paula Davila-Pérez, Alvaro Pascual-Leone
Background: Transcranial magnetic stimulation (TMS) can be used to assess neurophysiology and the mechanisms of cortical brain plasticity in humans in vivo. As the use of these measures in specific populations (e.g., Alzheimer's disease; AD) increases, it is critical to understand their reproducibility (i.e., test-retest reliability) in the populations of interest. Objective: Reproducibility of TMS measures was evaluated in older adults, including healthy, AD, and Type-2 diabetes mellitus (T2DM) groups. Methods: Participants received two identical neurophysiological assessments within a year including motor thresholds, baseline motor evoked potentials (MEPs), short- and long-interval intracortical inhibition (SICI, LICI) and intracortical facilitation (ICF), and MEP changes following intermittent theta-burst stimulation (iTBS)...
2017: Frontiers in Aging Neuroscience
https://www.readbyqxmd.com/read/28870582/linking-alzheimer-s-disease-and-type-2-diabetes-novel-shared-susceptibility-genes-detected-by-cfdr-approach
#19
Xia-Fang Wang, Xu Lin, Ding-You Li, Rou Zhou, Jonathan Greenbaum, Yuan-Cheng Chen, Chun-Ping Zeng, Lin-Ping Peng, Ke-Hao Wu, Zeng-Xin Ao, Jun-Min Lu, Yan-Fang Guo, Jie Shen, Hong-Wen Deng
BACKGROUND: Both type 2 diabetes (T2D) and Alzheimer's disease (AD) occur commonly in the aging populations and T2D has been considered as an important risk factor for AD. The heritability of both diseases is estimated to be over 50%. However, common pleiotropic single-nucleotide polymorphisms (SNPs)/loci have not been well-defined. The aim of this study is to analyze two large public accessible GWAS datasets to identify novel common genetic loci for T2D and/or AD. METHODS AND MATERIALS: The recently developed novel conditional false discovery rate (cFDR) approach was used to analyze the summary GWAS datasets from International Genomics of Alzheimer's Project (IGAP) and Diabetes Genetics Replication And Meta-analysis (DIAGRAM) to identify novel susceptibility genes for AD and T2D...
September 15, 2017: Journal of the Neurological Sciences
https://www.readbyqxmd.com/read/28854435/n-terminal-prosomatostatin-and-risk-of-vascular-dementia
#20
Hannes Holm, Katarina Nägga, Erik D Nilsson, Fabrizio Ricci, Eduardo Cinosi, Olle Melander, Oskar Hansson, Erasmus Bachus, Martin Magnusson, Artur Fedorowski
BACKGROUND: Increased somatostatin plasma concentration has been found in patients with vascular dementia. However, it is unknown whether or not somatostatin levels may predict dementia development in the general population. To this end, we sought to assess the association of circulating N-terminal prosomatostatin (NT-proSST) with incident dementia among community-dwelling older adults. METHODS: In the prospective population-based Malmö Preventive Project, 5,347 study participants (mean age: 69 ± 6years; 70% men) provided plasma for the determination of NT-proSST concentration...
August 31, 2017: Cerebrovascular Diseases
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