In Silico Preliminary Association of Ammonia Metabolism Genes GLS , CPS1 , and GLUL with Risk of Alzheimer ’s Disease, Major Depressive Disorder, and Type 2 Diabetes

AbstractAmmonia is a toxic by-product of protein catabolism and is involved in changes in glutamate metabolism. Therefore, ammonia metabolism genes may link a range of diseases involving glutamate signaling such as Alzheimer ’s disease (AD), major depressive disorder (MDD), and type 2 diabetes (T2D). We analyzed data from a National Institute on Aging study with a family-based design to determine if 45 single nucleotide polymorphisms (SNPs) in glutaminase (GLS), carbamoyl phosphate synthetase 1 (CPS1), or glutamate-ammonia ligase (GLUL) genes were associated with AD, MDD, or T2D using PLINK software. HAPLOVIEW software was used to calculate linkage disequilibrium measures for the SNPs. Next, we analyzed the associated variations for potential effects on transcriptional control sites to identify possible functional effects of the SNPs. Of the SNPs that passed the quality control tests, four SNPs in theGLS gene were significantly associated with AD, two SNPs in theGLS gene were associated with T2D, and one SNP in theGLUL gene and three SNPs in theCPS1 gene were associated with MDD before Bonferroni correction. The in silico bioinformatic analysis suggested probable functional roles for six associated SNPs. Glutamate signaling pathways have been implicated in all these diseases, and other studies have detected similar brain pathologies such as cortical thinning in AD, MDD, and T2D. Taken together, these data potentially linkGLS with AD,GLS with T2D, andCPS1 andGLUL with MD...
Source: Journal of Molecular Neuroscience - Category: Neuroscience Source Type: research

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This study suggests that exocrine glands can be induced from pluripotent stem cells for organ replacement regenerative therapy. Replacement of Aged Microglia Partially Reverses Cognitive Decline in Mice https://www.fightaging.org/archives/2018/10/replacement-of-aged-microglia-partially-reverses-cognitive-decline-in-mice/ Researchers here report on a compelling demonstration that shows the degree to which dysfunctional microglia contribute to age-related neurodegeneration. The scientists use a pharmacological approach to greatly deplete the microglial population and then allow it to recover naturally. The...
Source: Fight Aging! - Category: Research Authors: Tags: Newsletters Source Type: blogs
In this study, we found that TXNIP deficiency induces accelerated senescent phenotypes of mouse embryonic fibroblast (MEF) cells under high glucose condition and that the induction of cellular ROS or AKT activation is critical for cellular senescence. Our results also revealed that TXNIP inhibits AKT activity by a direct interaction, which is upregulated by high glucose and H2O2 treatment. In addition, TXNIP knockout mice exhibited an increase in glucose uptake and aging-associated phenotypes including a decrease in energy metabolism and induction of cellular senescence and aging-associated gene expression. We propose that...
Source: Fight Aging! - Category: Research Authors: Tags: Newsletters Source Type: blogs
It ’s difficult to open a newspaper nowadays without seeing an article about artificial intelligence. These column-inches spark our imaginations with heady visions of possible futures and crease our brows with concern in equal measure. But one thing you cannot escape is that AI is here now and it’s only going to become more pervasive.While fear of an unknown technology is understandable, in many ways it does a disservice to the incredible impact that AI is already having on the world around us. In the healthcare space alone, it is offering ways to fundamentally rethink clinical practice, speeding up diagnosis, ...
Source: EyeForPharma - Category: Pharmaceuticals Authors: Source Type: news
In this study, senescent cell distribution and quantity in vastus lateralis muscle were examined in young human adults after a single bout of resistance exercise. To determine the effects of dietary protein availability around exercise on senescent cell quantity and macrophage infiltration of skeletal muscle, two isocaloric protein supplements (14% and 44% in calorie) were ingested before and immediately after an acute bout of resistance exercise, in a counter-balanced crossover fashion. An additional parallel trial was conducted to compare the outcome of muscle mass increment under the same dietary conditions after 12 wee...
Source: Fight Aging! - Category: Research Authors: Tags: Newsletters Source Type: blogs
Fight Aging! provides a weekly digest of news and commentary for thousands of subscribers interested in the latest longevity science: progress towards the medical control of aging in order to prevent age-related frailty, suffering, and disease, as well as improvements in the present understanding of what works and what doesn't work when it comes to extending healthy life. Expect to see summaries of recent advances in medical research, news from the scientific community, advocacy and fundraising initiatives to help speed work on the repair and reversal of aging, links to online resources, and much more. This content is...
Source: Fight Aging! - Category: Research Authors: Tags: Newsletters Source Type: blogs
Fight Aging! provides a weekly digest of news and commentary for thousands of subscribers interested in the latest longevity science: progress towards the medical control of aging in order to prevent age-related frailty, suffering, and disease, as well as improvements in the present understanding of what works and what doesn't work when it comes to extending healthy life. Expect to see summaries of recent advances in medical research, news from the scientific community, advocacy and fundraising initiatives to help speed work on the repair and reversal of aging, links to online resources, and much more. This content is...
Source: Fight Aging! - Category: Research Authors: Tags: Newsletters Source Type: blogs
Diagnoses of clinical depression — also known as major depression — have risen by 33% since 2013, according to a new report from health insurer Blue Cross Blue Shield. The report, which was based on insurance claims filed by 41 million privately insured Blue Cross Blue Shield members, calls depression the “second most impactful condition on overall health for commercially insured Americans,” behind only high blood pressure. That’s because people with depression also tend to have other health issues, such as chronic illnesses and substance abuse, and as a result may have more significant health...
Source: TIME: Health - Category: Consumer Health News Authors: Tags: Uncategorized healthytime Mental Health/Psychology onetime Source Type: news
I’m a little dumb-founded whenever I run across a prescribing trend that goes against all of the available empirical evidence for common sense use of a medication. Nowhere is this more evident than with the prescription of atypical antipsychotic medications. It wouldn’t be too far a stretch to suggest that such prescriptions have become like Prozac prescriptions in the 1990s, the latest medication fad. But atypical antipsychotics, like Seroquel (quetiapine fumarate), are far more complex with far more problematic side effects than drugs like Prozac, and should only be prescribed for on-label use. The Washingto...
Source: World of Psychology - Category: Psychiatry & Psychology Authors: Tags: Antipsychotic General Medications Policy and Advocacy Adverse Effects Atypical Antipsychotic Bipolar Disorder Insomnia movement disorder Seroquel side effects Weight Gain Source Type: blogs
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Source: Fight Aging! - Category: Research Authors: Tags: Newsletters Source Type: blogs
UCLAJonathan FieldingDr. Jonathan Fielding is a distinguished professor of public health and pediatrics at UCLA. This column appeared in U.S. News and World Report.Does behavior have a significant impact on your risk of developing dementia? That ’s what a wealth of new data is suggesting, and the evidence, gathered from different research teams around the globe, is pointing in the same intriguing direction.A suite of new studies came to a common finding — that our own behavior could partially stave off the effects of dementia, including dementia-related to Alzheimer’s, which accounts for up to 7...
Source: UCLA Newsroom: Health Sciences - Category: Universities & Medical Training Source Type: news
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