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miRNA critical illness

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https://www.readbyqxmd.com/read/29209617/mirroring-the-multiple-potentials-of-micrornas-in-acute-myocardial-infarction
#1
REVIEW
Solenne Paiva, Onnik Agbulut
At present, cardiovascular diseases are depicted to be the leading cause of death worldwide according to the World Health Organization. In the future, projections predict that ischemic heart disease will persist in the top main causes of illness. Within this alarming context, some tiny master regulators of gene expression programs, namely, microRNAs (miRNAs) carry three promising potentials. In fact, miRNAs can prove to be useful not only in terms of biomarkers allowing heart injury detection but also in terms of therapeutics to overcome limitations of past strategies and treat the lesions...
2017: Frontiers in Cardiovascular Medicine
https://www.readbyqxmd.com/read/28858140/mirna-214-protects-sepsis-induced-myocardial-injury
#2
Chen Ge, Junhang Liu, Shimin Dong
Sepsis can cause myocardial injury, which is one of the leading causes of death in critically ill patients. The underlying mechanisms associated with sepsis-induced myocardial injury (SIMI) includes impaired cardiac contractility, excessive cardiac inflammation, oxidative stress, cardiomyocyte apoptosis, and so on. SIMI is usually accompanied with dynamic changes of miRNAs expression. And previous studies have shown that miR-214 plays a vital role in the protection of cardiomyocyte subjected to oxidative stress...
August 29, 2017: Shock
https://www.readbyqxmd.com/read/28856588/whole-blood-microrna-markers-are-associated-with-acute-respiratory-distress-syndrome
#3
Zhaozhong Zhu, Liming Liang, Ruyang Zhang, Yongyue Wei, Li Su, Paula Tejera, Yichen Guo, Zhaoxi Wang, Quan Lu, Andrea A Baccarelli, Xi Zhu, Ednan K Bajwa, B Taylor Thompson, Guo-Ping Shi, David C Christiani
BACKGROUND: MicroRNAs (miRNAs) can play important roles in inflammation and infection, which are common manifestations of acute respiratory distress syndrome (ARDS). We assessed if whole blood miRNAs were potential diagnostic biomarkers for human ARDS. METHODS: This nested case-control study (N = 530) examined a cohort of ARDS patients and critically ill at-risk controls. Whole blood miRNA profiles and logistic regression analyses identified miRNAs correlated with ARDS...
August 30, 2017: Intensive Care Medicine Experimental
https://www.readbyqxmd.com/read/28809518/mir-542-promotes-mitochondrial-dysfunction-and-smad-activity-and-is-raised-in-icu-acquired-weakness
#4
Roser Farre Garros, Richard Paul, Martin Connolly, Amy Lewis, Benjamin E Garfield, S Amanda Natanek, Susannah Bloch, Vincent Mouly, Mark J Griffiths, Michael I Polkey, Paul R Kemp
RATIONALE: Loss of skeletal muscle mass and function is a common consequence of critical illness and a range of chronic diseases but the mechanisms by which this occurs are unclear. OBJECTIVES: We aimed to identify miRNAs that were increased in the quadriceps of patients with muscle wasting and to determine the molecular pathways by which they contributed to muscle dysfunction. METHODS: miR-542-3p/-5p were quantified in the quadriceps of patients with COPD and intensive care unit acquired weakness (ICUAW)...
August 15, 2017: American Journal of Respiratory and Critical Care Medicine
https://www.readbyqxmd.com/read/28535304/the-interplay-of-micrornas-in-the-inflammatory-mechanisms-following-ischemic-stroke
#5
REVIEW
Seyed Esmaeil Khoshnam, William Winlow, Maryam Farzaneh
Immunity and inflammation are important parameters of the pathophysiology of stroke, a destructive illness that is the second most common cause of death worldwide. Following ischemic stroke, neuroinflammation plays a critical role in neurodegeneration and brain injury. MicroRNAs (miRNAs) are a class of endogenously expressed, noncoding RNA molecules that function to inhibit mRNA translation. Recent studies demonstrate that miRNAs are key regulators of inflammatory processes contributing to ischemic stroke injuries...
July 1, 2017: Journal of Neuropathology and Experimental Neurology
https://www.readbyqxmd.com/read/28510638/%C3%AE-asarone-suppresses-the-proliferation-and-migration-of-asmcs-through-targeting-the-lncrna-pvt1-mir-203a-e2f3-signal-pathway-in-rsv-infected-rats
#6
Xiao Yu, Zhe Zhe, Binqing Tang, Shaobin Li, Ling Tang, Yingen Wu, Xiaorong Chen, Hong Fang
Asthma is a chronic inflammatory pulmonary disease and respiratory syncytial virus (RSV) infection is a common cause of lower respiratory tract illness in infants and young children. α-Asarone presents many pharmacological effects and has been demonstrated to be useful in treating asthma. However, the functional mechanism of α-asarone in RSV-infected asthma has not been investigated. Long non-coding RNAs (lncRNAs) have been reported to play critical roles in many biological processes. Although many lncRNAs have been characterized, few were reported in asthma, especially in RSV-induced asthma...
July 1, 2017: Acta Biochimica et Biophysica Sinica
https://www.readbyqxmd.com/read/28416774/microrna-100-suppresses-human-osteosarcoma-cell-proliferation-and-chemo-resistance-via-znrf2
#7
Qiang Xiao, Yu Yang, Qing An, Yong Qi
Osteosarcoma (OS) is a prevalent cancer worldwide. MicroRNAs (miRNAs) play critical roles in the growth, invasion and carcinogenesis of OS, whereas the underlying mechanisms remain ill-defined. Here, we addressed these questions. We detected significantly higher levels of ZNRF2, a ubiquitin ligase of the RING superfamily, and significantly lower levels of miR-100 in the OS specimens, compared to the paired normal bone tissues. The levels of ZNRF2 and miR-100 inversely correlated in the OS specimens. In addition, low miR-100 levels are associated with poor prognosis of the OS patients...
May 23, 2017: Oncotarget
https://www.readbyqxmd.com/read/28283561/alteration-of-neuronal-excitability-and-short-term-synaptic-plasticity-in-the-prefrontal-cortex-of-a-mouse-model-of-mental-illness
#8
Gregg W Crabtree, Ziyi Sun, Mirna Kvajo, Jantine A C Broek, Karine Fénelon, Heather McKellar, Lan Xiao, Bin Xu, Sabine Bahn, James M O'Donnell, Joseph A Gogos
Using a genetic mouse model that faithfully recapitulates a DISC1 genetic alteration strongly associated with schizophrenia and other psychiatric disorders, we examined the impact of this mutation within the prefrontal cortex. Although cortical layering, cytoarchitecture, and proteome were found to be largely unaffected, electrophysiological examination of the mPFC revealed both neuronal hyperexcitability and alterations in short-term synaptic plasticity consistent with enhanced neurotransmitter release. Increased excitability of layer II/III pyramidal neurons was accompanied by consistent reductions in voltage-activated potassium currents near the action potential threshold as well as by enhanced recruitment of inputs arising from superficial layers to layer V...
April 12, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/28164622/using-the-expression-of-mirnas-as-biomarkers-for-the-evaluation-acute-respiratory-distress-syndrome-in-the-critically-ill-polytrauma-patient
#9
REVIEW
Marius Papurica, Alexandru F Rogobete, Carmen A Cradigati, Mirela Sarandan, Raluca Dumache, Lavinia M Bratu, Sonia E Popovici, Dorel Sandesc, Corina Vernic, Ovidiu H Bedreag
BACKGROUND: A high percentage of critically ill polytrauma patients develop acute respiratory distress syndrome (ARDS), both because of the primary traumatic injuries and because of the secondary post-traumatic injuries. For adequate management of these patients, new complex evaluation and monitoring methods are needed, methods that could answer as many questions as possible regarding the pathophysiological changes associated with ARDS. Currently, a series of clinical and biochemical markers are being used which unfortunately do not respond to the needs of an intensive care clinician...
August 1, 2016: Clinical Laboratory
https://www.readbyqxmd.com/read/28164614/using-circulating-mirnas-as-biomarkers-for-the-evaluation-and-monitoring-of-the-mitochondrial-damage-in-the-critically-ill-polytrauma-patients
#10
REVIEW
Ovidiu H Bedreag, Marius Papurica, Alexandru F Rogobete, Dorel Sandesc, Raluca Dumache, Carmen A Cradigati, Mirela Sarandan, Lavinia M Bratu, Sonia E Popovici, Laurentiu V Sima
BACKGROUND: The multiple-traumatic critical patient presents a variety of pathophysiological, cellular, and molecular dysfunctions. One of the most important is represented by mitochondrial damage which afterwards is responsible for the augmentation and worsening of a series of pathologies that lead to the worsening of the clinical status of the patient. The severe inflammatory response, sepsis, and the redox imbalance are other pathologies that together with the multiple traumas are responsible for the mitochondrial dysfunctions...
August 1, 2016: Clinical Laboratory
https://www.readbyqxmd.com/read/28164531/literature-research-regarding-mirnas-expression-in-the-assessment-and-evaluation-of-the-critically-ill-polytrauma-patient-with-traumatic-brain-and-spinal-cord-injury
#11
Lavinia M Bratu, Alexandru F Rogobete, Marius Papurica, Dorel Sandesc, Carmen A Cradigati, Mirela Sarandan, Raluca Dumache, Sonia E Popovici, Dan C Crisan, Horia Stanca, Sonia Tanasescu, Ovidiu H Bedreag
BACKGROUND: One of the most severe conditions specific to the critically ill polytrauma patient is traumatic brain injury and traumatic spinal cord injury. The mortality rate is high in the case of these patients, both because of the direct traumatic lesions, and because of the pathophysiological imbalances associated with trauma. Amongst the most common pathologies associated with the critically ill polytrauma patients responsible for a lower survival rate, are redox imbalance, systemic inflammatory response, infections, and multiple organ dysfunction syndrome...
October 1, 2016: Clinical Laboratory
https://www.readbyqxmd.com/read/28164521/using-the-expression-of-damage-associated-molecular-pattern-damp-for-the-evaluation-and-monitoring-of-the-critically-ill-polytrauma-patient
#12
REVIEW
Marius Papurica, Alexandru F Rogobete, Dorel Sandesc, Carmen A Cradigati, Mirela Sarandan, Raluca Dumache, Florin G Horhat, Lavinia M Bratu, Razvan Nitu, Dan C Crisan, Delia I Horhat, Elena S Popovici, Sonia Tanasescu, Vlad Daliborca, Ovidiu Boruga, Ovidiu H Bedreag
BACKGROUND: The critically ill polytrauma patient continues to be one of the most complex cases in the intensive care unit (ICU). The molecular damage is closely connected with the severe, specific pathophysiological imbalances, such as severe inflammation, infections, hypermetabolism, oxidative stress, and ultimately multiple organ dysfunction syndrome (MODS). METHODS: The literature available on PubMed and Scopus was analysed for this study. The key words used in the search were "biomarkers in critically ill patients", "molecular damage", "sepsis biomarkers", "miRNAs biomarkers", and "oxidative stress"...
October 1, 2016: Clinical Laboratory
https://www.readbyqxmd.com/read/27897405/premorbid-obesity-but-not-nutrition-prevents-critical-illness-induced-muscle-wasting-and-weakness
#13
Chloë Goossens, Mirna Bastos Marques, Sarah Derde, Sarah Vander Perre, Thomas Dufour, Steven E Thiessen, Fabian Güiza, Thomas Janssens, Greet Hermans, Ilse Vanhorebeek, Katrien De Bock, Greet Van den Berghe, Lies Langouche
BACKGROUND: The 'obesity paradox' of critical illness refers to better survival with a higher body mass index. We hypothesized that fat mobilized from excess adipose tissue during critical illness provides energy more efficiently than exogenous macronutrients and could prevent lean tissue wasting. METHODS: In lean and premorbidly obese mice, the effect of 5 days of sepsis-induced critical illness on body weight and composition, muscle wasting, and weakness was assessed, each with fasting and parenteral feeding...
February 2017: Journal of Cachexia, Sarcopenia and Muscle
https://www.readbyqxmd.com/read/27855391/suppression-of-microrna-219-5p-activates-keratinocyte-growth-factor-to-mitigate-severity-of-experimental-cirrhosis
#14
Li Chen, Xiang Cui, Peng Li, Cong Feng, Lili Wang, Hao Wang, Xuan Zhou, Bo Yang, Faqin Lv, Tanshi Li
BACKGROUND/AIMS: Keratinocyte growth factor (KGF) plays a critical role in prevention of cirrhosis and enhancement of liver regeneration. However, the molecular regulation of KGF in liver is unknown. MicroRNAs (miRNAs) control the pathogenesis of cirrhosis, whereas the exact involved miRNAs and molecular signaling pathways remain ill-defined. Here we addressed these questions. METHODS: We examined the correlation of the levels of miR-219-5p and KGF in the liver biopsies from patients with liver diseases...
2016: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/27620842/mir-137-an-important-player-in-neural-development-and-neoplastic-transformation
#15
REVIEW
E Mahmoudi, M J Cairns
MicroRNAs (miRNAs) represent an important class of small regulatory RNAs that control gene expression posttranscriptionally by targeting mRNAs for degradation or translation inhibition. Early studies have revealed a complex role for miRNAs in major biological processes such as development, differentiation, growth and metabolism. MiR-137 in particular, has been of great interest due to its critical role in brain function and putative involvement in the etiology of both neuropsychiatric disorders and cancer. Several lines of evidence suggest that development, differentiation and maturation of the nervous system is strongly linked to the expression of miR-137 and its regulation of a large number of downstream target genes in various pathways...
January 2017: Molecular Psychiatry
https://www.readbyqxmd.com/read/27612681/the-use-of-exosomes-as-biomarkers-for-evaluating-and-monitoring-critically-ill-polytrauma-patients-with-sepsis
#16
REVIEW
Marian Ticlea, Lavinia Melania Bratu, Florian Bodog, Ovidiu Horea Bedreag, Alexandru Florin Rogobete, Zorin Petrisor Crainiceanu
Regarding genetic biomarkers for early assessment and monitoring the clinical course in polytrauma patients with sepsis, in recent years a remarkable evolution has been highlighted. One of the main representatives is the exosome miRNAs. In this paper, we would like to present in more details the various methods of using exosome miRNAs as a biomarker for monitoring polytrauma patients with sepsis, as well as establishing a belated outcome by aggregating the entire clinical aspects. The use of exosome miRNAs for late evaluating and monitoring the clinical evolution of polytrauma patients can bring significant improvements in current clinical practice through the optimization and modulation of intensive care according to the needs of each patient individually...
February 2017: Biochemical Genetics
https://www.readbyqxmd.com/read/27429052/plasma-biomarkers-to-study-mechanisms-of-liver-injury-in-patients-with-hypoxic-hepatitis
#17
James L Weemhoff, Benjamin L Woolbright, Rosalind E Jenkins, Mitchell R McGill, Matthew R Sharpe, Jody C Olson, Daniel J Antoine, Steven C Curry, Hartmut Jaeschke
BACKGROUND & AIMS: Hypoxic hepatitis is a clinical condition precipitated by prolonged periods of oxygen deprivation to the liver. It can have several underlying causes. Despite its prevalence in critically ill patients, which can reach upwards of 10%, very little is known about the mechanisms of injury. Thus, we set out to measure previously identified circulating biomarkers in an attempt to describe mechanisms of injury following hypoxic hepatitis. METHODS: Plasma from patients diagnosed with hypoxic hepatitis was collected for this study...
March 2017: Liver International: Official Journal of the International Association for the Study of the Liver
https://www.readbyqxmd.com/read/27320175/circulating-plasma-micrornas-can-differentiate-human-sepsis-and-systemic-inflammatory-response-syndrome-sirs
#18
Stefano Caserta, Florian Kern, Jonathan Cohen, Stephen Drage, Sarah F Newbury, Martin J Llewelyn
Systemic inflammation in humans may be triggered by infection, termed sepsis, or non-infective processes, termed non-infective systemic inflammatory response syndrome (SIRS). MicroRNAs regulate cellular processes including inflammation and may be detected in blood. We aimed to establish definitive proof-of-principle that circulating microRNAs are differentially affected during sepsis and non-infective SIRS. Critically ill patients with severe (n = 21) or non-severe (n = 8) intra-abdominal sepsis; severe (n = 23) or non-severe (n = 21) non-infective SIRS; or no SIRS (n = 16) were studied...
2016: Scientific Reports
https://www.readbyqxmd.com/read/27156313/the-use-of-circulating-mirnas-as-biomarkers-for-oxidative-stress-in-critically-ill-polytrauma-patients
#19
REVIEW
Ovidiu Horea Bedreag, Dorel Sandesc, Sorin Dan Chiriac, Alexandru Florin Rogobete, Alina Carmen Cradigati, Mirela Sarandan, Raluca Dumache, Radu Nartita, Marius Papurica
BACKGROUND: The diversity of primary and secondary traumatic injuries specific for the critically ill polytrauma patient is complicating the therapeutic management in the absence of a strict assessment of the biological changes. Inflammation, redox imbalance, and immunosuppression can be quantified by various biochemical parameters; however, they do not fully respond to the current requirements. Another phenomenon responsible for worsening the clinical status and for the development of complications in such patients is oxidative stress...
2016: Clinical Laboratory
https://www.readbyqxmd.com/read/27129188/down-regulation-of-mir-192-5p-protects-from-oxidative-stress-induced-acute-liver-injury
#20
Sanchari Roy, Fabian Benz, Jan Alder, Heike Bantel, Joern Janssen, Mihael Vucur, Jeremie Gautheron, Anne Schneider, Florian Schüller, Sven Loosen, Mark Luedde, Alexander Koch, Frank Tacke, Tom Luedde, Christian Trautwein, Christoph Roderburg
miR-192-5p has gained increasing relevance in various diseases, however, its function in acute liver injury is currently unknown. We analysed miR-192-5p serum levels and hepatic miR-192-5p expression in mice after hepatic ischaemia and reperfusion (I/R) as well as in toxic liver injury. On a functional level, miRNA levels were analysed in the different hepatic cell-compartments and in the context of tumour necrosis factor (TNF)-dependent liver cell death. We detected increased serum levels of miR-192-5p after hepatic I/R- and carbon tetrachloride (CCl4)-induced liver injury...
July 1, 2016: Clinical Science (1979-)
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