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https://www.readbyqxmd.com/read/28691428/stat-proteins-as-intracellular-regulators-of-resistance-to-myocardial-injury-in-context-of-cardiac-remodeling-and-targeting-for-therapy
#1
REVIEW
Andrzej Wincewicz, Stanislaw Sulkowski
Roles of STAT (signal transducers and activators of transcription) proteins are widely discussed in relation to other agents like IFN-γ that are involved in cardiovascular diseases. STAT3 protects cardiomyocytes during endotoxic shock and ischemia and prolongs survival of these cells by activation of antiapoptotic genes like bcl-2 and c-fos. Moreover, IL-6 dependent expression of STAT3 probably is responsible for hypertrophy of cardiomyocytes. On the contrary STAT1 mediates cell death by induction of caspase-1...
June 27, 2017: Advances in Clinical and Experimental Medicine: Official Organ Wroclaw Medical University
https://www.readbyqxmd.com/read/28687422/resting-state-functional-magnetic-resonance-imaging-analysis-of-brain-functional-activity-in-rats-with-ischemic-stroke-treated-by-electro-acupuncture
#2
Shengxiang Liang, Yunjiao Lin, Bingbing Lin, Jianhong Li, Weilin Liu, Lidian Chen, Shujun Zhao, Jing Tao
OBJECTIVE: To evaluate whether electro-acupuncture (EA) treatment at acupoints of Zusanli (ST 36) and Quchi (LI 11) could reduce motor impairments and enhance brain functional recovery in rats with ischemic stroke. MATERIALS AND METHODS: A rat model of middle cerebral artery occlusion (MCAO) was established. EA at ST 36 and LI 11was started at 24 hours (MCAO + EA group) after ischemic stroke. The nontreatment (MCAO) and sham-operated control (SC) groups were included as controls...
July 4, 2017: Journal of Stroke and Cerebrovascular Diseases: the Official Journal of National Stroke Association
https://www.readbyqxmd.com/read/28678102/are-you-sure-you-want-to-do-that-fostering-the-responsible-conduct-of-medical-education-research
#3
Lauren A Maggio, Anthony R Artino, Katherine Picho, Erik W Driessen
Engaging in questionable research practices (QRPs) is a noted problem across many disciplines, including medical education. While QRPs are rarely discussed in the context of medical education, that does not mean that medical education researchers are immune. Therefore, the authors seek to raise medical educators' awareness of the responsible conduct of research (RCR) and call the community to action before QRPs negatively affect the field.The authors define QRPs and introduce examples that could easily happen in medical education research because of vulnerabilities particular to the field...
July 3, 2017: Academic Medicine: Journal of the Association of American Medical Colleges
https://www.readbyqxmd.com/read/28669594/potential-to-induce-dentinal-cracks-during-retreatment-procedures-of-teeth-treated-with-russian-red-an-ex-vivo-study
#4
Eglė Nedzinskienė, Vytautė Pečiulienė, Jolanta Aleksejūnienė, Rasmutė Manelienė, Saulius Drukteinis, Audronė Jakaitienė
OBJECTIVE: The aim of this study was to compare the impact of treatment procedures on roots previously treated with resorcinol-formaldehyde resin and analyze the effectiveness of dye and magnification for the detection of dentin cracks. MATERIALS AND METHODS: Distal roots of 80 permanent first mandibular molars with a single canal were sectioned at 3mm and 9mm from the anatomical apex. Two groups were formed according to the method used for root canal penetration: group 1 (K-file and Pro Taper instruments) and group 2 (Ultrasound with Pro Ultra and Pro Taper files)...
June 7, 2017: Medicina
https://www.readbyqxmd.com/read/28651239/cardiaprotective-effect-of-crocetin-by-attenuating-apoptosis-in-isoproterenol-induced-myocardial-infarction-rat-model
#5
Weili Zhang, Yuhui Li, Zhiming Ge
Given study evaluates the cardioprotective effect of crocetin in myocardial infracted (MI) rats. MI was produced by administering isoproterenol (90mg/kg/day, i.p.) in rats for two consecutive days. all the animals were divided in to four groups such as control group receives only saline; MI group which receives only isoproterenol and crocetin treated group which receives crocetin (50, 100 and 200mg/kg/day, p.o.) for the duration of 15 days. At the end of dosing left ventricular functions was assessed to estimate its effect on cardiac functions...
June 24, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28643448/post-conditioning-with-metformin-attenuates-apoptotic-events-in-cardiomyoblasts-associated-with-ischemic-reperfusion-injury
#6
Rajesh Ramachandran, Mini S
Ischemic post-conditioning is considered as a potent method to combat ischemic reperfusion injury than pre-conditioning since the latter is non predictive and risky. Rapid initiation of reperfusion with potent anti oxidant compound can be one of the most effective treatments to reduce the infract size and behavioural deficits as a result of ischemic insult. Apoptosis/Necrotic events undisputedly hold significant role in determining the fate of cardiomyocytes post ischemic injury but current studies are speculative regrading the role of post-conditioning in maintaining cellular homeostasis...
June 23, 2017: Cardiovascular Therapeutics
https://www.readbyqxmd.com/read/28638482/implantable-and-biodegradable-macroporous-iron-oxide-frameworks-for-efficient-regeneration-and-repair-of-infracted-heart
#7
Wenshuo Wang, Hongyue Tao, Yun Zhao, Xiaotian Sun, Jing Tang, Cordelia Selomulya, Jia Tang, Tianchan Chen, Yang Wang, Minglei Shu, Lei Wei, Guanyu Yi, Jixue Zhou, Lai Wei, Chunsheng Wang, Biao Kong
The construction, characterization and surgical application of a multilayered iron oxide-based macroporous composite framework were reported in this study. The framework consisted of a highly porous iron oxide core, a gelatin-based hydrogel intermediary layer and a matrigel outer cover, which conferred a multitude of desirable properties including excellent biocompatibility, improved mechanical strength and controlled biodegradability. The large pore sizes and high extent of pore interconnectivity of the framework stimulated robust neovascularization and resulted in substantially better cell viability and proliferation as a result of improved transport efficiency for oxygen and nutrients...
2017: Theranostics
https://www.readbyqxmd.com/read/28634116/succinate-induced-neuronal-mitochondrial-fission-and-hexokinase-ii-malfunction-in-ischemic-stroke-therapeutical-effects-of-kaempferol
#8
Bin Wu, Hong Luo, Xu Zhou, Cai-Yi Cheng, Lin Lin, Bao-Lin Liu, Kang Liu, Ping Li, Hua Yang
Mitochondrial dysfunction is known as one of causative factors in ischemic stroke, leading to neuronal cell death. The present work was undertaken to investigate whether succinate induces neuron apoptosis by regulating mitochondrial morphology and function. In neurons, oxygen-glucose deprivation induced succinate accumulation due to the reversal of succinate dehydrogenase (SDH) activation, leading to mitochondrial fission. Kaempferol inhibited mitochondrial fission and maintained mitochondrial HK-II through activation of Akt, and thereby protected neurons from succinate-mediated ischemi injury...
June 17, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28584085/language-from-police-body-camera-footage-shows-racial-disparities-in-officer-respect
#9
Rob Voigt, Nicholas P Camp, Vinodkumar Prabhakaran, William L Hamilton, Rebecca C Hetey, Camilla M Griffiths, David Jurgens, Dan Jurafsky, Jennifer L Eberhardt
Using footage from body-worn cameras, we analyze the respectfulness of police officer language toward white and black community members during routine traffic stops. We develop computational linguistic methods that extract levels of respect automatically from transcripts, informed by a thin-slicing study of participant ratings of officer utterances. We find that officers speak with consistently less respect toward black versus white community members, even after controlling for the race of the officer, the severity of the infraction, the location of the stop, and the outcome of the stop...
June 20, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28558086/acute-heart-failure-registry-risk-assessment-model-in-decompensated-heart-failure
#10
Anne Delgado, Bruno Rodrigues, Sara Nunes, Rui Baptista, Bruno Marmelo, Davide Moreira, Pedro Gama, Luís Nunes, Oliveira Santos, Costa Cabral
BACKGROUND: Heart failure (HF) is a highly prevalent syndrome. Although the long-term prognostic factors have been identified in chronic HF, this information is scarcer with respect to patients with acute HF. despite available data in the literature on long-term prognostic factors in chronic HF, data on acute HF patients are more scarce. OBJECTIVES: To develop a predictor of unfavorable prognostic events in patients hospitalized for acute HF syndromes, and to characterize a group at higher risk regarding their clinical characteristics, treatment and outcomes...
December 2016: Arquivos Brasileiros de Cardiologia
https://www.readbyqxmd.com/read/28539652/ano1-inhibits-cardiac-fibrosis-after-myocardial-infraction-via-tgf-%C3%AE-smad3-pathway
#11
Yao Gao, Yan Mei Zhang, Li Jun Qian, Ming Chu, Jian Hong, Di Xu
As a newly identified factor in calcium-activated chloride channel, ANO1 participates in various physiological processes like proliferation and differentiation, and expresses in human cardiac fibroblasts. In this experiment, we investigated the function of ANO1 in cardiac fibrosis after myocardial infraction (MI) with methods of Western blotting, Quantitative real-time PCR (qRT-PCR), metabolic reduction of 3-(4,5-dimethylthiozol-2-yl)-2, 5-diphenyltetrazo-lium bromide (MTT), immunofluorescence and confocal imaging, and Masson's trichrome staining...
May 24, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28529056/prevention-of-thromboembolic-complications-after-spine-surgery-by-the-use-of-low-molecular-weight-heparin
#12
Xiao-Jun Zeng, Hao Peng
AIM: The present study aimed to evaluate the effectiveness and safety of the use of LMWH in the prevention of thromboembolic complications after spine surgery. METHODS: We conducted a retrospective study on two groups of patients receiving spine surgery. A total of 947 patients admitted for surgery from July 2009 to June 2012 were administered therapeutic dose of LMWH daily after the surgery (therapeutic group). Another 814 patients enrolled from July 2006 to June 2009 were not given any heparin treatment (control group)...
May 18, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28528367/evaluating-the-role-of-autologous-mesenchymal-stem-cell-seeded-on-decellularized-pericardium-in-the-treatment-of-myocardial-infarction-an-animal-study
#13
Abdol-Mohammad Kajbafzadeh, Seyed Hossein Ahmadi Tafti, Reza Khorramirouz, Shabnam Sabetkish, Seyedeh Maryam Kameli, Saghar Orangian, Shahram Rabbani, Nasim Oveisi, Marziyeh Golmohammadi, Zeynab Kashani
Inappropriate left ventricular remodeling following myocardial infarction (MI) can result in subsequent severe dysfunction. In this study, we tested the hypothesis that decellularized pericardium (DP) or seeded pericardial patch with autologous adipose-derived mesenchymal stem cells (ADMSCs) could be safely used in a MI scar and could improve heart function. Twelve rabbits were randomly divided into three equal groups. Four weeks after MI induction by ligation of the left anterior descending artery in 12 rabbits, animals of G1 (n = 4) received DP patch with labeled ADMSCs...
May 20, 2017: Cell and Tissue Banking
https://www.readbyqxmd.com/read/28524025/-effect-of-esmolol-on-hemodynamics-and-clinical-outcomes-in-patients-with-septic-shock
#14
Shupeng Wang, Min Li, Jun Duan, Li Yi, Xu Huang, Desheng Chen, Gang Li
OBJECTIVE: To evaluate the effect of heart rate control with esmolol on hemodynamics, inflammatory cytokines and clinical outcomes in patients with septic shock. METHODS: A prospective randomized controlled trial was conducted. The patients with septic shock admitted to Department of Critical Care Medicine of China-Japan Friendship Hospital from August 2014 to October 2016 were enrolled. After 24 hours of resuscitation and other therapy, they were randomly divided into two groups by sealed envelope...
May 2017: Zhonghua Wei Zhong Bing Ji Jiu Yi Xue
https://www.readbyqxmd.com/read/28506000/therapeutic-effects-of-oral-dimethyl-fumarate-on-stroke-induced-by-middle-cerebral-artery-occlusion-an-animal-experimental-study
#15
Anahid Safari, Mehdi Fazeli, Mohammad Reza Namavar, Nader Tanideh, Peyman Jafari, Afshin Borhani-Haghighi
BACKGROUND: Dimethyl fumarate (DMF) has immune-modulatory and neuro-protective characteristics that can be used for treatment of acute ischemic stroke. OBJECTIVE: To investigate the therapeutic effects of DMF on histological and functional recovery of rats after transient middle cerebral artery (MCA) occlusion. METHODS: 22 Sprague-Dawley male rats weighing 275-300 g were randomized into three groups by block randomization. In the sham group (n = 7), the neck was opened, but neither MCA was occluded, nor any drug was administered...
2017: Restorative Neurology and Neuroscience
https://www.readbyqxmd.com/read/28498849/percutaneous-coronary-intervention-with-second-generation-drug-eluting-stent-versus-bare-metal-stent-systematic-review-and-cost-benefit-analysis
#16
Thomas G Poder, Jihane Erraji, Lucien P Coulibaly, Kouamé Koffi
BACKGROUND: Drug-eluting stents (DESs) were considered as ground-breaking technology promising to eradicate restenosis and the necessity to perform multiple revascularization procedures subsequent to percutaneous coronary intervention. Soon after DESs were released on the market, however, there were reports of a potential increase in mortality and of early or late thrombosis. In addition, DESs are far more expensive than bare-metal stents (BMSs), which has led to their limited use in many countries...
2017: PloS One
https://www.readbyqxmd.com/read/28494834/prediction-of-10-year-atherosclerotic-cardiovascular-disease-risk-among-adults-aged-40-79-years-in-china-a-nationally-representative-survey
#17
Mei Zhang, Yong Jiang, Li Min Wang, Yi Chong Li, Zheng Jing Huang, Jian Hong Li, Mai Geng Zhou, Wen Hua Zhao
OBJECTIVE: To establish the distribution of 10-year atherosclerotic cardiovascular disease (ASCVD) risk among Chinese adults. METHODS: We estimated the 10-year ASCVD risk by applying the 2013 American College of Cardiology/ American Heart Association pooled cohort equations (PCEs) to the data obtained from the 2010 China Chronic Disease and Risk Factor Surveillance that involved 61,541 participants (representing 520,158,652 Chinese adults) aged 40-79 years. We also compared the ASCVD risk with the 10-year ischemic cardiovascular disease (ICVD) risk, which was calculated using the simplified scoring tables recommended by the Chinese Guidelines for Prevention of Cardiovascular Diseases (Chinese model)...
April 2017: Biomedical and Environmental Sciences: BES
https://www.readbyqxmd.com/read/28458710/tissue-plasminogen-activator-identifying-major-barriers-related-to-intravenous-injection-in-ischemic-acute-cerebral-infraction
#18
Fariborz Khorvash, Fatemeh Heidary, Mohammad Saadatnia, Ahmad Chitsaz, Zahra Tolou-Ghamari
BACKGROUND: According to previous publications, in patients with acute ischemic cerebral infarction, thrombolytic therapy using intravenous tissue plasminogen activator (IV-tPA) necessitates precise documentation of symptoms' onset. The aim of this study was to identify major barriers related to the IV-tPA injection in such patients. MATERIALS AND METHODS: Between the year 2014-2015, patients with definitive diagnosis of acute cerebral infarction (n = 180) who attended the neurology ward located at the Isfahan Alzahra Hospital were studied...
2017: Journal of Research in Medical Sciences: the Official Journal of Isfahan University of Medical Sciences
https://www.readbyqxmd.com/read/28457660/ilk-regulates-mscs-survival-and-angiogenesis-partially-through-akt-and-mtor-signaling-pathways
#19
Bin Zeng, Lei Liu, Shaofeng Wang, Zhiguo Dai
Mesenchymal stem cells (MSCs) exert therapeutic effects on treating acute myocardial infarction (AMI). Angiogenesis in ischemic heart can promote the supply of oxygen and nutrients to both ischemic myocardium and transplanted stem cells. Focus is then given to the evolving strategies amied at angiogenesis. ILK has been reported to be an important factor regulating apoptosis and angiogenesis. This study examined the role and mechanism of ILK in MSCs survival and angiogenesis. In hypoxic condition, upregulation of ILK expression increased the phosphorylation of Akt and mTOR, resulting in markedly enchanced MSCs survival and VEGF expression; while significantly inhibited MSCs survival and VEGF expression was detected in MSCs with ILK kinase inactivation, which was associated with a reduction of phosphorylation of Akt and mTOR...
April 28, 2017: Acta Histochemica
https://www.readbyqxmd.com/read/28457560/three-year-follow-up-of-patients-with-acetylcholine-induced-coronary-artery-spasm-combined-with-insignificant-coronary-stenosis
#20
Byoung Geol Choi, Sung Hun Park, Seung-Woon Rha, Jihun Ahn, Se Yeon Choi, Jae Kyeong Byun, Hu Li, Ahmed Mashaly, Min Suk Shim, Jun Hyuk Kang, Woohyeun Kim, Jah Yeon Choi, Eun Jin Park, Sunki Lee, Jin Oh Na, Cheol Ung Choi, Hong Euy Lim, Eung Ju Kim, Chang Gyu Park, Hong Seog Seo, Dong Joo Oh
BACKGROUND: Coronary artery spasm (CAS) and significant coronary stenosis are known to be major causes of myocardial ischemia. However, their association and the impact of insignificant coronary stenosis (ICS) on long-term clinical outcomes of CAS patients are largely unknown. METHODS: A total of 2797 patients without significant coronary artery disease (CAD) who underwent the acetylcholine (ACH) provocation test between November 2004 and October 2010 were enrolled...
March 18, 2017: International Journal of Cardiology
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