Fight Aging! Newsletter, April 10th 2017

This study shows that lifespan-extending conditions can slow molecular changes associated with an epigenetic clock in mice livers. Diverse interventions that extend mouse lifespan suppress shared age-associated epigenetic changes at critical gene regulatory regions Age-associated epigenetic changes are implicated in aging. Notably, age-associated DNA methylation changes comprise a so-called aging "clock", a robust biomarker of aging. However, while genetic, dietary and drug interventions can extend lifespan, their impact on the epigenome is uncharacterised. To fill this knowledge gap, we defined age-associated DNA methylation changes at the whole-genome, single-nucleotide level in mouse liver and tested the impact of longevity-promoting interventions, specifically the Ames dwarf Prop1 df/df mutation, calorie restriction, and rapamycin. In wild-type mice fed an unsupplemented ad libitum diet, age-associated hypomethylation was enriched at super-enhancers in highly expressed genes critical for liver function. Genes harbouring hypomethylated enhancers were enriched for genes that change expression with age. Hypermethylation was enriched at CpG islands marked with bivalent activating and repressing histone modifications and resembled hypermethylation in liver cancer. Age-associated methylation changes are suppressed in Ames dwarf and calorie restricted mice and more selectively and less specifically in rapamycin treated mice. Dietary re...
Source: Fight Aging! - Category: Research Authors: Tags: Newsletters Source Type: blogs

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CONCLUSION: Prediction models regressed on persons with and without SCI under-predicted REE of competitive wheelchair rugby athletes. This outcome may be explained by the higher REE/fat-free mass (FFM) ratio of current athletes compared to less active samples. Findings from the current study will help practitioners to determine nutrient intake needs on training days of varied intensity. PMID: 31017540 [PubMed - as supplied by publisher]
Source: Journal of Spinal Cord Medicine - Category: Orthopaedics Tags: J Spinal Cord Med Source Type: research
CONCLUSIONS: This study provides evidence of a dynamic process of white matter change occurring beyond the initial phases of recovery after moderate to severe TBI. The observed relationship between structural reorganization and changes in cognitive performance has implications for rehabilitation potential in more chronic phases of recovery. PMID: 31017479 [PubMed - as supplied by publisher]
Source: Brain Injury - Category: Neurology Tags: Brain Inj Source Type: research
In the fields of tissue engineering, drug delivery, and filtering material, electrospun ultrafine fibers with micropores have important applications. A scanning electron microscope (SEM) is typically used to observe the microstructure of ultrafine fibers, but SEM has disadvantages, such as small ...
Source: Applied Optics - Category: Physics Authors: Source Type: research
This study examined how two aesthetic features of infographics affect people's evaluation of information presented in infographic: colour and visual complexity. The findings suggested colour and visual complexity were both strong predictors of information evaluation in infographic and they should be chosen carefully in the design of infographics. PMID: 31014148 [PubMed - as supplied by publisher]
Source: Journal of Visual Communication in Medicine - Category: Information Technology Tags: J Vis Commun Med Source Type: research
Authors: Kim TJ, Song J, Kim YS, Huh J, Kang IS, Yang JH, Jun TG Abstract OBJECTIVES: We aimed to investigate the outcome of tricuspid valve repair (TVR) performed concomitantly with pulmonary valve replacement in repaired tetralogy of Fallot (TOF) patients. DESIGN: This retrospective study included all patients who underwent pulmonary vale replacement from 2000 to 2016 after TOF correction. TVR patient data were compared to those of patients who underwent pulmonary vale replacement alone. RESULTS: Thirty-eight patients were enrolled. The degree of tricuspid regurgitation was significantly decreased after o...
Source: Scandinavian Cardiovascular Journal - Category: Cardiology Tags: Scand Cardiovasc J Source Type: research
In conclusion, it was identified that silencing of miR‑193a‑3p through hypermethylation can promote HER2 positive breast cancer progress by targeting GRB7, ERK1/2 and FOXM1 signaling. The function of miR‑193a‑3p in HER2 positive breast cancer implicates its potential application in therapy. PMID: 31017268 [PubMed - in process]
Source: International Journal of Molecular Medicine - Category: Molecular Biology Authors: Tags: Int J Mol Med Source Type: research
Identification of key transcription factors associated with cerebral ischemia‑reperfusion injury based on gene‑set enrichment analysis. Int J Mol Med. 2019 Jun;43(6):2429-2439 Authors: Zhang YY, Wang K, Liu YE, Wang W, Liu AF, Zhou J, Li C, Zhang YQ, Zhang AP, Lv J, Jiang WJ Abstract Cerebral ischemia‑reperfusion injury (CIRI) usually causes detrimental complications following reperfusion therapy in stroke patients. The present study systematically investigated the regulatory mechanism involved in the pathogenesis of CIRI using gene set enrichment analysis of the transient middle cerebral artery...
Source: International Journal of Molecular Medicine - Category: Molecular Biology Authors: Tags: Int J Mol Med Source Type: research
MicroRNA‑576‑3p inhibits the migration and proangiogenic abilities of hypoxia‑treated glioma cells through hypoxia‑inducible factor‑1α. Int J Mol Med. 2019 Jun;43(6):2387-2397 Authors: Hu Q, Liu F, Yan T, Wu M, Ye M, Shi G, Lv S, Zhu X Abstract The most common and aggressive type of brain cancer in adults is glioblastoma multiforme (GBM), and hypoxia is a common feature of glioblastoma. As the histological features of glioma include capillary endothelial cell proliferation, they are highly prone to invading the surrounding normal brain tissue, which is often one of the reasons for the ...
Source: International Journal of Molecular Medicine - Category: Molecular Biology Authors: Tags: Int J Mol Med Source Type: research
Role of the thioredoxin interacting protein in diabetic nephropathy and the mechanism of regulating NOD‑like receptor protein 3 inflammatory corpuscle. Int J Mol Med. 2019 Jun;43(6):2440-2450 Authors: Gu C, Liu S, Wang H, Dou H Abstract Inflammatory response serves an important role in diabetic nephropathy (DN); however, the mechanism of inflammatory response results in renal damage is not yet clear. The aim of the present study was to investigate the role of the thioredoxin interacting protein (TXNIP)/NOD‑like receptor protein 3 (NLRP3) axis‑mediated activation of NLRP3 inflammasome in DN. A di...
Source: International Journal of Molecular Medicine - Category: Molecular Biology Authors: Tags: Int J Mol Med Source Type: research
Detection of N6‑methyladenosine modification residues (Review). Int J Mol Med. 2019 Jun;43(6):2267-2278 Authors: Zhu W, Wang JZ, Xu Z, Cao M, Hu Q, Pan C, Guo M, Wei JF, Yang H Abstract Among a number of mRNA modifications, N6‑methyladenosine (m6A) modification is the most common type in eukaryotes and nuclear‑replicating viruses. m6A has a significant role in numerous cancer types, including leukemia, brain tumors, liver cancer, breast cancer and lung cancer. Although m6A methyltransferases are essential during RNA modifications, the biological functions of m6A and the underlying mechanisms rem...
Source: International Journal of Molecular Medicine - Category: Molecular Biology Authors: Tags: Int J Mol Med Source Type: research
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