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https://www.readbyqxmd.com/read/29775224/circular-rnas-are-differentially-expressed-in-liver-ischemia-reperfusion-injury-model
#1
Zhiqiang Ye, Qinglei Kong, Jianhua Han, Jingyi Deng, Miaolue Wu, Hong Deng
Liver ischemia/reperfusion (I/R) injury has high mortality due to the intense inflammatory process occurs in the liver. However, the pathological mechanism underlying I/R injury is still not clear. Recent works showed that circular RNAs play critical roles in many human diseases. In this study, the occurrence of liver I/R injury was validated by an analysis of the blood samples and hematoxylin-eosin (HE) staining of liver tissues. Total RNA was purified and followed by RNA-seq in the purpose of screening the circRNAs in significant differentially expression, which were validated by quantitative PCR...
May 18, 2018: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/29774767/the-role-of-hepatic-antioxidant-capacity-and-hepatobiliary-transporter-in-liver-injury-induced-by-isopsoralen-in-zebrafish-larvae
#2
Y Zhang, Y Zhang, J Li, Y Chen, L Han, Q He, J Chu, K Liu
Isopsoralen is the main component of the Chinese medicine psoralen, which has antitumour activity and can be used for the treatment of osteoporosis. However, the mechanism behind its hepatotoxicity has not yet been elucidated. In this study, the hepatotoxicity of isopsoralen was investigated using zebrafish. Isopsoralen treatment groups of 25, 50 and 100 μM were established. The mortality, liver morphology changes, levels of alanine aminotransferase (ALT) and aspartate aminotransferase (AST), liver histopathology and mRNA levels of liver injury-related genes in zebrafish larvae were measured...
January 1, 2018: Human & Experimental Toxicology
https://www.readbyqxmd.com/read/29774638/loss-of-sirtuin-1-and-mitofusin-2-contributes-to-enhanced-ischemia-reperfusion-injury-in-aged-livers
#3
Sung Kook Chun, Sooyeon Lee, Joseph Flores-Toro, Rebecca Y U, Ming-Jim Yang, Kristina L Go, Thomas G Biel, Catherine E Miney, Schiley Pierre Louis, Brian K Law, Mary E Law, Elizabeth M Thomas, Kevin E Behrns, Christiaan Leeuwenburgh, Jae-Sung Kim
Ischemia/reperfusion (I/R) injury is a causative factor contributing to morbidity and mortality during liver resection and transplantation. Livers from elderly patients have a poorer recovery from these surgeries, indicating reduced reparative capacity with aging. Mechanisms underlying this age-mediated hypersensitivity to I/R injury remain poorly understood. Here, we investigated how sirtuin 1 (SIRT1) and mitofusin 2 (MFN2) are affected by I/R in aged livers. Young (3 months) and old (23-26 months) male C57/BL6 mice were subjected to hepatic I/R in vivo...
May 17, 2018: Aging Cell
https://www.readbyqxmd.com/read/29774601/the-impact-of-mitral-stenosis-on-outcomes-of-aortic-valve-stenosis-patient-undergoing-surgical-aortic-valve-replacement-or-transcatheter-aortic-valve-replacement
#4
Yasser Al-Khadra, Fahed Darmoch, Motaz Baibars, Amir Kaki, Zaher Fanari, M Chadi Alraies
BACKGROUND: The concomitant presence of mitral stenosis (MS) in the setting of symptomatic aortic stenosis represent a clinical challenge. Little is known regarding the outcome of mitral stenosis (MS) patients undergoing transcatheter aortic valve replacement (TAVR) or surgical aortic valve replacement (SAVR). Therefore, we sought to study the outcome of MS patients undergoing aortic valve replacement (AVR). METHOD: Using weighted data from the National Inpatient Sample (NIS) database between 2011 and 2014, we identified patients who were diagnosed with MS...
May 17, 2018: Journal of Interventional Cardiology
https://www.readbyqxmd.com/read/29773781/clinicopathological-characteristics-of-traumatic-head-injury-in-juvenile-middle-aged-and-elderly-individuals
#5
Jiawen Wang, Feng Han, Qian Zhao, Bin Xia, Jialin Dai, Qian Wang, Shimei Huang, Cuiyun Le, Zhu Li, Jiangjin Liu, Ming Yang, Changwu Wan, Jie Wang
BACKGROUND Traumatic head injury is a leading cause of death and disability worldwide. How clinicopathological features differ by age remains unclear. This epidemiological study analyzed the clinicopathological features of patients with head injury belonging to 3 age groups. MATERIAL AND METHODS Data of patients with traumatic head injury were obtained from the Department of Cerebral Surgery of the Affiliated Hospital of Guizhou Medical University and the Guizhou Provincial People's Hospital in 2011-2015. Their clinicopathological parameters were assessed...
May 18, 2018: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/29773712/acute-kidney-injury-and-risk-of-heart-failure-and-atherosclerotic-events
#6
Alan S Go, Chi-Yuan Hsu, Jingrong Yang, Thida C Tan, Sijie Zheng, Juan D Ordonez, Kathleen D Liu
BACKGROUND AND OBJECTIVES: AKI in the hospital is common and is associated with excess mortality. We examined whether AKI is also independently associated with a higher risk of different cardiovascular events in the first year after discharge. DESIGN, SETTING, PARTICIPANTS, & MEASUREMENTS: We conducted a retrospective analysis of a cohort between 2006 and 2013 with follow-up through 2014, within Kaiser Permanente Northern California. We identified all adults admitted to 21 hospitals who had one or more in-hospital serum creatinine test result and survived to discharge...
May 17, 2018: Clinical Journal of the American Society of Nephrology: CJASN
https://www.readbyqxmd.com/read/29773058/non-cardiomyocytes-in-heart-regeneration
#7
Jie Feng, Yandong Li, Yu Nie
Heart failure represents a challenging clinical and public health problem and is associated with significant morbidity and mortality. Mechanistically, loss of cardiomyocytes leads to decompensated ventricular remodeling, which eventually progressed to cardiac failure. Regenerative medicine aimed to supplement functional cardiomyocytes is supposedly a promising approach for the effective treatment of heart failure. Over the past decades, investigations on heart regeneration have revealed the regulating networks of cardiomyocyte proliferation...
May 17, 2018: Current Drug Targets
https://www.readbyqxmd.com/read/29771700/the-effect-of-iv-amino-acid-supplementation-on-mortality-in-icu-patients-may-be-dependent-on-kidney-function-post-hoc-subgroup-analyses-of-a-multicenter-randomized-trial
#8
Ran Zhu, Matilde J Allingstrup, Anders Perner, Gordon S Doig
OBJECTIVES: We investigated whether preexisting kidney function determines if ICU patients may benefit from increased (2.0 g/kg/d) protein intake. DESIGN: Post hoc, hypothesis-generating, subgroup analysis of a multicenter, phase 2, randomized clinical trial. All analyses were conducted by intention to treat and maintained group allocation. Ninety-day mortality was the primary outcome. SETTING: ICUs of 16 hospitals throughout Australia and New Zealand...
May 15, 2018: Critical Care Medicine
https://www.readbyqxmd.com/read/29771572/inhibition-of-ubiquitin-activating-enzyme-protects-against-organ-injury-after-intestinal-ischemia-reperfusion
#9
Shingo Matsuo, Andrew Chaung, Deanna Liou, Ping Wang, Weng-Lang Yang
Intestinal ischemia-reperfusion (I/R) occurs in various clinical settings, such as transplantation, acute mesenteric arterial occlusion, trauma and shock. I/R injury causes severe systemic inflammation, leading to multiple organ dysfunction associated with high mortality. The ubiquitin proteasome pathway has been indicated in the regulation of inflammation, particularly through NF-κB signaling pathway. PYR-41 is a small molecular compound that selectively inhibits ubiquitin-activating enzyme E1. A mouse model of intestinal I/R injury by clamping the superior mesenteric artery for 45 minutes was performed to evaluate the effect of PYR-41 treatment on organ injury and inflammation...
May 17, 2018: American Journal of Physiology. Gastrointestinal and Liver Physiology
https://www.readbyqxmd.com/read/29771484/management-of-multiply-injured-pediatric-trauma-patients-in-the-emergency-department
#10
Andria Tatem, Rupa Kapoor
Management of the child with multiple traumatic injuries can be challenging, and important injuries may not be readily recognized. Early recognition of serious injuries, initiation of appropriate diagnostic studies, and rapid stabilization of injuries are key to decreasing morbidity and mortality in the multiply injured pediatric trauma patient. The differential diagnosis for these patients is wide, and treatment is targeted to the specific injuries. In this issue, a systematic approach to the multiply injured pediatric patient will be reviewed, with specific attention to commonly missed injuries and those injuries that may cause significant morbidity or mortality...
June 2018: Pediatric Emergency Medicine Practice
https://www.readbyqxmd.com/read/29771155/cardiac-events-within-one-year-after-a-subarachnoid-haemorrhage-the-predictive-value-of-troponin-elevation-after-aneurysm-occlusion
#11
Annemarie Akkermans, Linda M Peelen, Judith A van Waes, Gabriël J Rinkel, Wilton A van Klei
Background Patients who survive after an aneurysmal subarachnoid haemorrhage (ASAH) have an increased incidence of cardiovascular events compared with the general population. We assessed whether troponin elevation after aneurysm occlusion, as marker of myocardial injury, can predict long-term cardiac events. Methods We analysed a prospectively collected cohort of 159 patients with ASAH and early aneurysm occlusion, in whom routine post-intervention troponin I (TnI) measurements were performed. With competing risk regression modelling we estimated the association between TnI elevation after aneurysm occlusion and major adverse cardiac events within one year...
January 1, 2018: European Journal of Preventive Cardiology
https://www.readbyqxmd.com/read/29770972/fractional-excretion-of-electrolytes-in-volume-responsive-and-intrinsic-acute-kidney-injury-in-dogs-diagnostic-and-prognostic-implications
#12
Roberta Troìa, Marta Gruarin, Chiara Grisetti, Federica Serafini, Luca Magna, Erika Monari, Massimo Giunti, Francesco Dondi
BACKGROUND: The value of fractional excretion (FE) of electrolytes to characterize and prognosticate acute kidney injury (AKI) is poorly documented in dogs. OBJECTIVES: To evaluate the diagnostic and prognostic roles of FE of electrolytes in dogs with AKI. ANIMALS: Dogs (n = 135) with AKI treated with standard care (February 2014-December 2016). METHODS: Prospective study. Clinical and laboratory variables including FE of electrolytes, were measured upon admission...
May 17, 2018: Journal of Veterinary Internal Medicine
https://www.readbyqxmd.com/read/29770166/free-radical-damage-in-ischemia-reperfusion-injury-an-obstacle-in-acute-ischemic-stroke-after-revascularization-therapy
#13
REVIEW
Ming-Shuo Sun, Hang Jin, Xin Sun, Shuo Huang, Fu-Liang Zhang, Zhen-Ni Guo, Yi Yang
Acute ischemic stroke is a common cause of morbidity and mortality worldwide. Thrombolysis with recombinant tissue plasminogen activator and endovascular thrombectomy are the main revascularization therapies for acute ischemic stroke. However, ischemia-reperfusion injury after revascularization therapy can result in worsening outcomes. Among all possible pathological mechanisms of ischemia-reperfusion injury, free radical damage (mainly oxidative/nitrosative stress injury) has been found to play a key role in the process...
2018: Oxidative Medicine and Cellular Longevity
https://www.readbyqxmd.com/read/29770118/neuroinflammation-as-a-target-for-intervention-in-subarachnoid-hemorrhage
#14
REVIEW
Airton Leonardo de Oliveira Manoel, R Loch Macdonald
Aneurysmal subarachnoid hemorrhage (SAH) is a sub-type of hemorrhagic stroke associated with the highest rates of mortality and long-term neurological disabilities. Despite the improvement in the management of SAH patients and the reduction in case fatality in the last decades, disability and mortality remain high in this population. Brain injury can occur immediately and in the first days after SAH. This early brain injury can be due to physical effects on the brain such as increased intracranial pressure, herniations, intracerebral, intraventricular hemorrhage, and hydrocephalus...
2018: Frontiers in Neurology
https://www.readbyqxmd.com/read/29769640/hypoxia-induced-microrna-191-contributes-to-hepatic-ischemia-reperfusion-injury-through-the-zonab-cyclin-d1-axis
#15
Wenming Pan, Lin Wang, Xiao-Fei Zhang, Hongji Zhang, Jinxiang Zhang, Guoliang Wang, Peng Xu, Yunwei Zhang, Ping Hu, Xiao-Dong Zhang, Run-Lei Du, Hui Wang
Hepatic ischemia/reperfusion injury (IRI) is a common cause of morbidity and mortality in liver transplantation settings and involves severe cell death and inflammatory responses. MicroRNA-191 has recently been reported to be abnormally expressed in hepatocellular carcinoma and other liver diseases in the regulation of important cellular processes. However, little is known about its function and molecular mechanism in IRI. Here, we demonstrate that miR-191 is significantly upregulated in a cultured cell line during hypoxia/reperfusion (H/R) and in liver tissue during IRI in mice...
May 16, 2018: Cell Death and Differentiation
https://www.readbyqxmd.com/read/29769541/modchimera-a-novel-murine-closed-head-model-of-moderate-traumatic-brain-injury
#16
A D Sauerbeck, C Fanizzi, J H Kim, M Gangolli, P V Bayly, C L Wellington, D L Brody, T T Kummer
Traumatic brain injury is a major source of global disability and mortality. Preclinical TBI models are a crucial component of therapeutic investigation. We report a tunable, monitored model of murine non-surgical, diffuse closed-head injury-modCHIMERA-characterized by impact as well as linear and rotational acceleration. modCHIMERA is based on the Closed-Head Impact Model of Engineered Rotational Acceleration (CHIMERA) platform. We tested this model at 2 energy levels: 1.7 and 2.1 Joules-substantially higher than previously reported for this system...
May 16, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29769030/in-silico-simulation-of-liver-crack-detection-using-ultrasonic-shear-wave-imaging
#17
Erwei Nie, Jiao Yu, Debaditya Dutta, Yanying Zhu
BACKGROUND: Liver trauma is an important source of morbidity and mortality worldwide. A timely detection and precise evaluation of traumatic liver injury and the bleeding site is necessary. There is a need to develop better imaging modalities of hepatic injuries to increase the sensitivity of ultrasonic imaging techniques for sites of hemorrhage caused by cracks. In this study, we conduct an in silico simulation of liver crack detection and delineation using an ultrasonic shear wave imaging (USWI) based method...
May 16, 2018: BMC Medical Imaging
https://www.readbyqxmd.com/read/29768578/-work-accidents-and-automatic-circuit-reclosers-in-the-electricity-sector-beyond-the-immediate-causes
#18
Alessandro Jose Nunes da Silva, Ildeberto Muniz de Almeida, Rodolfo Andrade de Gouveia Vilela, Renata Wey Berti Mendes, Sandra Lorena Beltran Hurtado
The Brazilian electricity sector has recorded high work-related mortality rates that have been associated with outsourcing, used to cut costs. In order to decrease the power outage time for consumers, the industry adopted the automatic circuit recloser as the technical solution. The device has hazardous implications for maintenance workers. The aim of this study was to analyze the origins and consequences of work accidents in power systems with automatic circuit recloser, using the Accident Analysis and Prevention (AAP) model...
May 10, 2018: Cadernos de Saúde Pública
https://www.readbyqxmd.com/read/29767392/a-novel-rabbit-model-for-benign-biliary-stricture-formation-and-the-effects-of-medication-infusions-on-stricture-formation
#19
Qin Yang, Junke Wang, Fei Liu, Wenjie Ma, Haijie Hu, Congdun Ran, Fuyu Li, Qiuwei Pan
BACKGROUND: Benign biliary stricture (BBS) is highly refractory. Currently, there is no effective strategy for prevention of BBS recurrence. The aim of this study is to establish a novel BBS rabbit model and to investigate the efficacy of biliary infusion with anti-proliferative medications for treating BBS. METHOD: A BBS model was established via surgical injury and biliary infection. The biliary infusion tube was inserted into the common bile duct via the stump of cystic duct after cholecystectomy...
May 16, 2018: Digestive Diseases and Sciences
https://www.readbyqxmd.com/read/29766570/melatonin-improves-endothelial-function-in-vitro-and-prolongs-pregnancy-in-women-with-early-onset-preeclampsia
#20
Sebastian R Hobson, Seshi Gurusinghe, Rebecca Lim, Nicole O Alers, Suzanne L Miller, John C Kingdom, Euan M Wallace
Preeclampsia remains a leading cause of maternal and perinatal morbidity and mortality. There have been no material advances in the treatment of preeclampsia for nearly 50 years. Combining in vitro studies and a clinical trial, we aimed to determine if melatonin could be a useful adjuvant therapy. In a xanthine/xanthine oxidase (X/XO) placental explant model, melatonin reduced oxidative stress (8-isoprostane) and enhanced antioxidant markers (Nrf2 translocation, HO-1), but did not affect explant production of anti-angiogenic factors (sFlt, sEng, activin A)...
May 16, 2018: Journal of Pineal Research
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