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https://www.readbyqxmd.com/read/27932994/comparative-mrna-and-microrna-profiling-during-acute-myocardial-infarction-induced-by-coronary-occlusion-and-ablation-radio-frequency-currents
#1
Eduardo T Santana, Regiane Dos Santos Feliciano, Andrey J Serra, Eduardo Brigidio, Ednei L Antonio, Paulo J F Tucci, Lubov Nathanson, Mariana Morris, José A Silva
The ligation of the left anterior descending coronary artery is the most commonly used experimental model to induce myocardial infarction (MI) in rodents. A high mortality in the acute phase and the heterogeneity of the size of the MI obtained are drawbacks recognized in this model. In an attempt to solve the problem, our group recently developed a new MI experimental model which is based on application of myocardial ablation radio-frequency currents (AB-RF) that yielded MI with homogeneous sizes and significantly reduce acute mortality...
2016: Frontiers in Physiology
https://www.readbyqxmd.com/read/27929093/plant-based-foods-containing-cell-wall-polysaccharides-rich-in-specific-active-monosaccharides-protect-against-myocardial-injury-in-rat-myocardial-infarction-models
#2
Sun Ha Lim, Yaesil Kim, Ki Na Yun, Jin Young Kim, Jung-Hee Jang, Mee-Jung Han, Jongwon Lee
Many cohort studies have shown that consumption of diets containing a higher composition of foods derived from plants reduces mortality from coronary heart disease (CHD). Here, we examined the active components of a plant-based diet and the underlying mechanisms that reduce the risk of CHD using three rat models and a quantitative proteomics approach. In a short-term myocardial infarction (MI) model, intake of wheat extract (WE), the representative cardioprotectant identified by screening approximately 4,000 samples, reduced myocardial injury by inhibiting apoptosis, enhancing ATP production, and maintaining protein homeostasis...
December 8, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27927700/cardiac-%C3%AE-v%C3%AE-3-integrin-expression-following-acute-myocardial-infarction-in-humans
#3
William S A Jenkins, Alex T Vesey, Colin Stirrat, Martin Connell, Christophe Lucatelli, Anoushka Neale, Catriona Moles, Anna Vickers, Alison Fletcher, Tania Pawade, Ian Wilson, James H F Rudd, Edwin J R van Beek, Saeed Mirsadraee, Marc R Dweck, David E Newby
OBJECTIVE: Maladaptive repair contributes towards the development of heart failure following myocardial infarction (MI). The αvβ3 integrin receptor is a key mediator and determinant of cardiac repair. We aimed to establish whether αvβ3 integrin expression determines myocardial recovery following MI. METHODS: (18)F-Fluciclatide (a novel αvβ3-selective radiotracer) positron emission tomography (PET) and CT imaging and gadolinium-enhanced MRI (CMR) were performed in 21 patients 2 weeks after ST-segment elevation MI (anterior, n=16; lateral, n=4; inferior, n=1)...
December 7, 2016: Heart: Official Journal of the British Cardiac Society
https://www.readbyqxmd.com/read/27923685/a-combined-cellular-and-surgical-ventricular-reconstruction-therapeutic-approach-produces-attenuation-of-remodeling-in-infarcted-rats
#4
Michael J Bonios, Maria Anastasiou-Nana, Despina N Perrea, Konstantinos Malliaras
BACKGROUND: Left ventricular reconstruction (LVR) has been shown to provide transient benefits in LV structure and function of infarcted hearts; however long-term results have been disappointing, as LVR-induced benefits are typically not sustained. We hypothesized that administration of cardiosphere-derived cells (CDCs), which promote myocardial repair and regeneration, may result in long-term preservation of the beneficial effects of LVR in ischemic cardiomyopathy. METHODS: Wistar Kyoto rats underwent myocardial infarction (MI) and two weeks later were randomized into 3 groups: in Group 1 (n=9) LVR was performed by plication of the infarcted apex and CDCs were injected in the infarct border zone (IBZ); group 2 animals (n=9) underwent LVR and received vehicle solution in the IBZ...
December 3, 2016: Hellenic Journal of Cardiology: HJC, Hellēnikē Kardiologikē Epitheōrēsē
https://www.readbyqxmd.com/read/27919929/interleukin-37-and-dendritic-cells-treated-with-interleukin-37-plus-troponin-i-ameliorate-cardiac-remodeling-after-myocardial-infarction
#5
Ruirui Zhu, Haitao Sun, Kunwu Yu, Yucheng Zhong, Huairui Shi, Yuzhen Wei, Xin Su, Wenbin Xu, Quan Luo, Fangyuan Zhang, Zhengfeng Zhu, Kai Meng, Xiaoqi Zhao, Yuzhou Liu, Yi Mao, Peng Cheng, Xiaobo Mao, Qiutang Zeng
BACKGROUND: Excessive immune-mediated inflammatory reactions play a deleterious role in postinfarction ventricular remodeling. Interleukin-37 (IL-37) emerges as an inhibitor of both innate and adaptive immunity. However, the exact role of IL-37 and IL-37 plus troponin I (TnI)-treated dendritic cells (DCs) in ventricular remodeling after myocardial infarction (MI) remains elusive. METHODS AND RESULTS: MI was induced by permanent ligation of the left anterior descending artery...
December 5, 2016: Journal of the American Heart Association
https://www.readbyqxmd.com/read/27917392/the-probability-of-inconstancy-in-assessment-of-cardiac-function-post-myocardial-infarction-in-mice
#6
Jiqiu Chen, Nadjib Hammoudi, Ludovic Benard, Delaine K Ceholski, Shihong Zhang, Djamel Lebeche, Roger J Hajjar
In the present study, we explore the inherent variability that leads to overlaps in cardiac functional parameters between control and post-myocardial infarction (MI) mice. Heart failure was induced by Left Coronary Artery (LCA) ligation in mice. Average Ejection Fraction (EF) measured by echocardiography was lower in MI mice compared to control, but exhibited higher Standard Deviation (SD) and Standard Error (SEM), notably in 2D mode. Fractional Shortening (FS) showed a higher degree of overlap between MI and control mice even though the mean values were significantly different...
2016: Cardiovascular Pharmacology: Open Access
https://www.readbyqxmd.com/read/27908351/pim1-kinase-overexpression-enhances-ckit-cardiac-stem-cell-cardiac-repair-following-myocardial-infarction-in-swine
#7
Shathiyah Kulandavelu, Vasileios Karantalis, Julia Fritsch, Konstantinos E Hatzistergos, Viky Y Loescher, Frederic McCall, Bo Wang, Luiza Bagno, Samuel Golpanian, Ariel Wolf, Justin Grenet, Adam Williams, Aaron Kupin, Aaron Rosenfeld, Sadia Mohsin, Mark A Sussman, Azorides Morales, Wayne Balkan, Joshua M Hare
BACKGROUND: Pim1 kinase plays an important role in cell division, survival, and commitment of precursor cells towards a myocardial lineage, and overexpression of Pim1 in ckit(+) cardiac stem cells (CSCs) enhances their cardioreparative properties. OBJECTIVES: The authors sought to validate the effect of Pim1-modified CSCs in a translationally relevant large animal preclinical model of myocardial infarction (MI). METHODS: Human cardiac stem cells (hCSCs, n = 10), hckit(+) CSCs overexpressing Pim1 (Pim1(+); n = 9), or placebo (n = 10) were delivered by intramyocardial injection to immunosuppressed Yorkshire swine (n = 29) 2 weeks after MI...
December 6, 2016: Journal of the American College of Cardiology
https://www.readbyqxmd.com/read/27906951/changes-in-neuroglial-activity-in-multiple-spinal-segments-after-caudal-epidural-pulsed-radiofrequency-in-a-rat-model-of-lumbar-disc-herniation
#8
Hee Kyung Cho, Jae Hoon Kang, So-Yeon Kim, Mi-Jung Choi, Se Jin Hwang, Yun-Woo Cho, Sang-Ho Ahn
BACKGROUND: Herniated lumbar discs can induce sciatica by mechanical compression and/or chemical irritation. It was recently reported that neuroglial cellular activity after pulsed radiofrequency (PRF) application to a single dorsal root ganglion (DRG) attenuated neuroglial activity at the corresponding spinal dorsal horn. Recently, caudal epidural PRF has been used to manage neuropathic pain, but evidence of molecular changes after the administration of caudal epidural PRF to attenuate neuropathic pain is lacking, and it has not been determined whether caudal epidural PRF affects neuroglial activity at different spinal levels...
November 2016: Pain Physician
https://www.readbyqxmd.com/read/27904666/ad-hgf-improves-the-cardiac-remodeling-of-rat-following-myocardial-infarction-by-upregulating-autophagy-and-necroptosis-and-inhibiting-apoptosis
#9
Jiabao Liu, Peng Wu, Yunle Wang, Yingqiang Du, Nan A, Shuiyuan Liu, Yiming Zhang, Ningtian Zhou, Zhihui Xu, Zhijian Yang
Cell death in MI is the most critical determinant of subsequent left ventricular remodeling and heart failure. Besides apoptosis, autophagy and necroptosis have been recently found to be another two regulated cell death styles. HGF has been reported to have a protective role in MI, but its impact on the three death styles remains unclear. Thus, our study was performed to investigate the distribution of autophagy, apoptosis and necroptosis in cardiac tissues after MI and explore the role and mechanism of Ad-HGF on cardiac remodeling by regulating the three death styles...
2016: American Journal of Translational Research
https://www.readbyqxmd.com/read/27903536/persistent-microvascular-obstruction-after-myocardial-infarction-culminates-in-the-confluence-of-ferric-iron-oxide-crystals-proinflammatory-burden-and-adverse-remodeling
#10
Avinash Kali, Ivan Cokic, Richard Tang, Alice Dohnalkova, Libor Kovarik, Hsin-Jung Yang, Andreas Kumar, Frank S Prato, John C Wood, David Underhill, Eduardo Marbán, Rohan Dharmakumar
BACKGROUND: Emerging evidence indicates that persistent microvascular obstruction (PMO) is more predictive of major adverse cardiovascular events than myocardial infarct (MI) size. But it remains unclear how PMO, a phenomenon limited to the acute/subacute period of MI, drives adverse remodeling in chronic MI setting. We hypothesized that PMO resolves into chronic iron crystals within MI territories, which in turn are proinflammatory and favor adverse remodeling post-MI. METHODS AND RESULTS: Canines (n=40) were studied with cardiac magnetic resonance imaging to characterize the spatiotemporal relationships among PMO, iron deposition, infarct resorption, and left ventricular remodeling between day 7 (acute) and week 8 (chronic) post-MI...
November 2016: Circulation. Cardiovascular Imaging
https://www.readbyqxmd.com/read/27900388/data-driven-modeling-for-precision-medicine-in-pediatric-acute-liver-failure
#11
Ruben Zamora, Yoram Vodovotz, Qi Mi, Derek Barclay, Jinling Yin, Simon Horslen, David Rudnick, Kathleen M Loomes, Robert H Squires
Absence of early outcome biomarkers for Pediatric Acute Liver Failure (PALF) hinders medical and liver transplant decisions. We sought to define dynamic interactions among circulating inflammatory mediators to gain insights into PALF outcome sub-groups. Serum samples from 101 participants in the PALF study, collected over the first 7 days following enrollment, were assayed for 27 inflammatory mediators. Outcomes (Spontaneous survivors [S, n=61], Non-survivors [NS, n=12], and liver transplant patients [LTx, n=28]) were assessed at 21 days post-enrollment...
November 23, 2016: Molecular Medicine
https://www.readbyqxmd.com/read/27894966/quantitative-proteomic-changes-during-post-myocardial-infarction-remodeling-reveals-altered-cardiac-metabolism-and-desmin-aggregation-in-the-infarct-region
#12
Kaberi Datta, Trayambak Basak, Swati Varshney, Shantanu Sengupta, Sagartirtha Sarkar
: Myocardial infarction is one of the leading causes of cardiac dysfunction, failure and sudden death. Post infarction cardiac remodeling presents a poor prognosis, with 30%-45% of patients developing heart failure, in a period of 5-25years. Oxidative stress has been labelled as the primary causative factor for cardiac damage during infarction, however, the impact it may have during the process of post infarction remodeling has not been well probed. In this study, we have implemented iTRAQ proteomics to catalogue proteins and functional processes, participating both temporally (early and late phases) and spatially (infarct and remote zones), during post myocardial infarction remodeling of the heart as functions of the differential oxidative stress manifest during the remodeling process...
November 25, 2016: Journal of Proteomics
https://www.readbyqxmd.com/read/27894310/monitoring-change-in-volume-of-calcifications-in-juvenile-idiopathic-inflammatory-myopathy-a-pilot-study-using-low-dose-computed-tomography
#13
Maria Ibarra, Cynthia Rigsby, Gabrielle A Morgan, Christina L Sammet, Chiang-Ching Huang, Dong Xu, Ira N Targoff, Lauren M Pachman
BACKGROUND: Dystrophic calcifications may occur in patients with J uvenile Idiopathic Inflammatory Myopathy (JIIM) as well as other connective tissue and metabolic diseases, but a reliable method of measuring the volume of these calcifications has not been established. The purpose of this study is to determine the feasibility of low dose, limited slice, Computed Tomography (CT) to measure objectively in-situ calcification volumes in patients with JIIM over time. METHODS: Ten JIIM patients (eight JDM, two Overlap) with calcifications were prospectively recruited over a 2-year period to undergo two limited, low dose, four-slice CT scans...
November 29, 2016: Pediatric Rheumatology Online Journal
https://www.readbyqxmd.com/read/27893811/the-inhibition-of-microrna-128-on-igf-1-activating-mtor-signaling-involves-in-temozolomide-induced-glioma-cell-apoptotic-death
#14
Peng-Hsu Chen, Chia-Hsiung Cheng, Chwen-Ming Shih, Kuo-Hao Ho, Cheng-Wei Lin, Chin-Cheng Lee, Ann-Jeng Liu, Cheng-Kuei Chang, Ku-Chung Chen
Temozolomide (TMZ), an alkylating agent of the imidazotetrazine series, is a first-line chemotherapeutic drug used in the clinical therapy of glioblastoma multiforme, the most common and high-grade primary glioma in adults. Micro (mi)RNAs, which are small noncoding RNAs, post-transcriptionally regulate gene expressions and are involved in gliomagenesis. However, no studies have reported relationships between TMZ and miRNA gene regulation. We investigated TMZ-mediated miRNA profiles and its molecular mechanisms underlying the induction of glioma cell death...
2016: PloS One
https://www.readbyqxmd.com/read/27891375/flow-mediated-dilatation-carotid-intima-media-thickness-ankle-brachial-pressure-index-and-pulse-pressure-in-young-male-post-myocardial-infarction-patients-in-india
#15
Nikhil Gupta, Subhash Giri, Vinita Rathi, Gajender Singh Ranga
INTRODUCTION: Due to increase in Coronary Artery Disease (CAD) at a younger age, we should try to diagnose atherosclerotic process and population at risk, at the earliest. Flow Mediated Dilatation (FMD), Carotid Intima-Media Thickness (CIMT) and Ankle-Brachial Pressure Index (ABI) are probable markers for early atherosclerosis and may be useful in coronary risk stratification. AIM: To compare and correlate the FMD, CIMT, ABI and Pulse Pressure (PP) in young male patients of Myocardial Infarction (MI) with age and sex matched healthy controls...
October 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/27888672/incidence-of-coronary-intervention-in-cardiac-arrest-survivors-with-non-shockable-initial-rhythms-and-no-evidence-of-st-elevation-mi-stemi
#16
Matthew Wilson, Anne V Grossestreuer, David F Gaieski, Benjamin S Abella, William Frohna, Munish Goyal
OBJECTIVE: With the demonstrated benefit of an early-invasive strategy for STEMI and VF/VT arrest patients, there is interest in assessing the potential benefit of early angiography for non-shockable (PEA/Asystole) arrest patients. We hypothesized that in cardiac arrest patients who obtain return of spontaneous circulation (ROSC) after a non-shockable initial rhythm and do not have STEMI the incidence of coronary intervention would be clinically insignificant (<5%). METHODS: Retrospective multicenter US clinical registry study of post-cardiac arrest patients at 18 hospitals between 1/00 and 5/14...
November 23, 2016: Resuscitation
https://www.readbyqxmd.com/read/27887689/usefulness-of-post-coronary-dilation-to-prevent-recurrent-myocardial-infarction-in-patients-treated-with-percutaneous-coronary-intervention-for-acute-coronary-syndrome-from-the-base-acs-trial
#17
Pasi P Karjalainen, Matti Niemelä, Mika Laine, Juhani K E Airaksinen, Antti Ylitalo, Wail Nammas
Stent underexpansion is associated with worse outcome after stent implantation. Whether post-dilation (PD) improves outcome in patients with acute coronary syndrome (ACS) remains unclear. We performed post hoc analysis of outcome in patients from the BASE ACS (A prospective randomized comparison of titanium-nitride-oxide-coated bioactive stents with everolimus-eluting stents in acute coronary syndrome) trial who underwent PD versus those who did not. The BASE ACS trial randomized 827 patients (1:1) with ACS to receive either titanium-nitride-oxide-coated bioactive stents or everolimus-eluting stents...
November 1, 2016: American Journal of Cardiology
https://www.readbyqxmd.com/read/27887662/the-effects-of-water-lubrication-of-tracheal-tubes-on-post-intubation-airway-complications-study-protocol-for-a-randomized-controlled-trial
#18
Eugene Kim, Seong Mi Yang, So Jeong Yoon, Jae-Hyon Bahk, Jeong-Hwa Seo
BACKGROUND: Water is known to have lubricating properties, thus it is used for lubrication of tracheal tubes to reduce airway injuries caused by intubation. However, there is no definite evidence to substantiate the beneficial effects of lubricating tracheal tubes using water for attenuating airway injuries. Moreover, the lubrication pretreatment may cause contamination of the tube, leading to respiratory infections. Therefore, this trial aims to assess whether no pretreatment of tracheal tubes does not increase post-intubation airway complications as compared with water lubrication of tubes...
November 25, 2016: Trials
https://www.readbyqxmd.com/read/27885461/prevention-and-treatment-effect-of-evogliptin-on-hepatic-steatosis-in-high-fat-fed-animal-models
#19
Mi-Kyung Kim, Yu Na Chae, Gook-Jun Ahn, Chang Yell Shin, Song-Hyen Choi, Eun Kyoung Yang, Yong Sung Sohn, Moon-Ho Son
Dipeptidyl peptidase 4 (DPP4) is an adipokine that interrupts insulin signaling. The resulting insulin resistance exacerbates hepatic steatosis. We previously reported that the novel DPP4 inhibitor evogliptin improves insulin resistance. This study aimed to verify the therapeutic potential of evogliptin for fatty liver. Evogliptin treatment was initiated simultaneously with a high-fat diet (HFD) feeding in normal mice and in a post-24 week HFD-fed rats. In a prevention study, insulin sensitivity was preserved in evogliptin-treated mice after a 16-week treatment...
November 24, 2016: Archives of Pharmacal Research
https://www.readbyqxmd.com/read/27884841/herbal-medicines-for-the-treatment-of-otitis-media-with-effusion-a-systematic-review-of-randomised-controlled-trials
#20
Mi Ju Son, Songie Choi, Young-Eun Kim, Yun Hee Kim
OBJECTIVES: This systematic review aimed to assess the clinical evidence supporting the use of herbal medicines (HMs) for the treatment of otitis media with effusion (OME). DESIGN: Systematic review and meta-analysis. DATA SOURCES: MEDLINE, EMBASE, Cochrane Library, AMED, CINAHL and three trial registries were searched up to January 2015. We also searched five Korean medical databases (KoreaMed, RISS, OASIS, DBPIA and KISS) and three Chinese databases (CNKI, Wanfang and VIP)...
November 24, 2016: BMJ Open
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