The role of long non-coding RNA SNHG12 in neuroprotection following cerebral ischemic injury

As one of the major causes of mortality and disability worldwide, ischemic stroke has never been received enough attention. Following ischemia/reperfusion injury, long non-coding RNAs have been extensively found to be involved into inflammatory responses, microvascular endothelial cell death, and angiogenesis in the brain. The small nucleolar RNA host gene 12 was found to be significantly increased following transient middle cerebral artery occlusion. However, the effect and underlying mechanism of small nucleolar RNA host gene 12 in ischemic stroke remain to be explored. We established an oxygen-glucose deprivation/reoxygen in primary neurons model to mimic ischemic stroke. The 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl-2H-tetrazolium bromide assay and lactate dehydrogenase assay were used to prove that knockdown small nucleolar RNA host gene 12 reduced cell viability after oxygen-glucose deprivation/reoxygen treatment. And the western blot showed that knockdown small nucleolar RNA host gene 12 aggravated the oxygen-glucose deprivation/reoxygen-induced apoptosis. What’s more, the pro-inflammatory cytokine level was increased in small nucleolar RNA host gene 12 knockdown primary neurons. Mechanistically, the specific distribution of small nucleolar RNA host gene 12 in primary neurons was detected by fluorescence in situ hybridisation. Additionally, we demonstrate small nucleolar RNA host gene 12 attenuates oxygen-glucose deprivation/reoxygen injury through activating Akt...
Source: NeuroReport - Category: Neurology Tags: Degeneration and Repair Source Type: research

Related Links:

In conclusion, older adults exhibited decreased markers of UPR activation and reduced coordination with autophagy and SC-associated gene transcripts following a single bout of unaccustomed resistance exercise. In contrast, young adults demonstrated strong coordination between UPR genes and key regulatory gene transcripts associated with autophagy and SC differentiation in skeletal muscle post-exercise. Taken together, the present findings suggest a potential age-related impairment in the post-exercise transcriptional response that supports activation of the UPR and coordination with other exercise responsive pathways (i.e....
Source: Fight Aging! - Category: Research Authors: Tags: Newsletters Source Type: blogs
In this study, researchers studied 438,952 participants in the UK Biobank, who had a total of 24,980 major coronary events - defined as the first occurrence of non-fatal heart attack, ischaemic stroke, or death due to coronary heart disease. They used an approach called Mendelian randomisation, which uses naturally occurring genetic differences to randomly divide the participants into groups, mimicking the effects of running a clinical trial. People with genes associated with lower blood pressure, lower LDL cholesterol, and a combination of both were put into different groups, and compared against those without thes...
Source: Fight Aging! - Category: Research Authors: Tags: Newsletters Source Type: blogs
We examined 9293 individuals from the Copenhagen General Population Study using nuclear magnetic resonance spectroscopy measurements of total cholesterol, free- and esterified cholesterol, triglycerides, phospholipids, and particle concentration. Fourteen subclasses of decreasing size and their lipid constituents were analysed: six subclasses were very low-density lipoprotein (VLDL), one intermediate-density lipoprotein (IDL), three low-density lipoprotein (LDL), and four subclasses were high-density lipoprotein (HDL). Remnant lipoproteins were VLDL and IDL combined. Mean nonfasting cholesterol concentration was 72â...
Source: Fight Aging! - Category: Research Authors: Tags: Newsletters Source Type: blogs
Stroke is a leading cause of death and disability worldwide and an increasing number of ischemic stroke patients are undergoing pharmacological and mechanical reperfusion. Both human and experimental models of reperfused ischemic stroke have implicated the complement cascade in secondary tissue injury. Most data point to the lectin and alternative pathways as key to activation, and C3a and C5a binding of their receptors as critical effectors of injury. During periods of thrombolysis use to treat stroke, acute experimental complement cascade blockade has been found to rescue tissue and improves functional outcome. Blockade ...
Source: Frontiers in Immunology - Category: Allergy & Immunology Source Type: research
Stroke is a major cause of serious disability due to the brain’s limited capacity to regenerate damaged tissue and neuronal circuits. After ischemic injury, a multiphasic degenerative and inflammatory response is coupled with severely restricted vascular and neuronal repair, resulting in permanent functional deficits. Although clinical evidence indicates that revascularization...
Source: Proceedings of the National Academy of Sciences - Category: Science Authors: Tags: PNAS Plus Source Type: research
In this study, we identify a link between members of the genus Veillonella and exercise performance. We observed an increase in Veillonella relative abundance in marathon runners postmarathon and isolated a strain of Veillonella atypica from stool samples. Inoculation of this strain into mice significantly increased exhaustive treadmill run time. Veillonella utilize lactate as their sole carbon source, which prompted us to perform a shotgun metagenomic analysis in a cohort of elite athletes, finding that every gene in a major pathway metabolizing lactate to propionate is at higher relative abundance postexercise. Us...
Source: Fight Aging! - Category: Research Authors: Tags: Newsletters Source Type: blogs
ME Abstract Stroke patients have only limited therapeutic options and often remain with considerable disabilities. To promote neurological recovery, angiogenesis in the ischemic peri-infarct region has been recognized as an encouraging therapeutic target. Despite advances in mechanistic understanding of vascular growth and repair, effective and safe angiogenic treatments are currently missing. Besides the most intensively studied angiogenic growth factors, recent research has indicated that the process of vascular sprouting and migration also requires the participation of guidance molecules, many of which were in...
Source: Trends in Neurosciences - Category: Neuroscience Authors: Tags: Trends Neurosci Source Type: research
This study sought to investigate what could be learned from how these men have fared. The men were born in 1925-1928 and similar health-related data from questionnaires, physical examination, and blood samples are available for all surveys. Survival curves over various variable strata were applied to evaluate the impact of individual risk factors and combinations of risk factors on all-cause deaths. At the end of 2018, 118 (16.0%) of the men had reached 90 years of age. Smoking in 1974 was the strongest single risk factor associated with survival, with observed percentages of men reaching 90 years being 26.3, 25.7, ...
Source: Fight Aging! - Category: Research Authors: Tags: Newsletters Source Type: blogs
, Moro MÁ, Lizasoain I Abstract Ischemic stroke is one of the leading causes of death and disability with an urgent need for innovative therapies, especially targeting the chronic phase. New evidence has emerged showing that Toll-Like Receptor 4 (TLR4), a key mediator of brain damage after stroke, may be involved in brain repair by neurogenesis modulation. The aim of this study is to analyze the role of TLR4 in the different stages of neurogenesis initiated in the subventricular zone (SVZ) over time after stroke in mice. Wildtype and TLR4-deficient mice underwent experimental ischemia, and neural stem/proge...
Source: Brain, Behavior, and Immunity - Category: Neurology Authors: Tags: Brain Behav Immun Source Type: research
Hongfei Gu1†, Shuang Shao2†, Jie Liu3,4,5, Zhenqian Fan2, Yu Chen2, Jingxian Ni3,4,5, Conglin Wang6, Jun Tu3,4,5, Xianjia Ning3,4,5, Yongzhong Lou1*, Bin Li1* and Jinghua Wang3,4,5* 1Department of Neurology, Tianjin Haibin People's Hospital, Tianjin, China 2Department of Endocrinology and Metabolism, The Second Hospital of Tianjin Medical University, Tianjin, China 3Department of Neurology, Tianjin Medical University General Hospital, Tianjin, China 4Laboratory of Epidemiology, Tianjin Neurological Institute, Tianjin, China 5Key Laboratory of Post-Neuroinjury Neuro-Repair and Regeneration i...
Source: Frontiers in Neurology - Category: Neurology Source Type: research
More News: Brain | Disability | Gastroschisis Repair | Genetics | Ischemic Stroke | Neurology | Stroke