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Cardioprotection

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https://www.readbyqxmd.com/read/29684038/murine-embryos-exposed-to-human-endometrial-mscs-derived-extracellular-vesicles-exhibit-higher-vegf-pdgf-aa-release-increased-blastomere-count-and-hatching-rates
#1
Rebeca Blázquez, Francisco Miguel Sánchez-Margallo, Verónica Álvarez, Elvira Matilla, Nuria Hernández, Federica Marinaro, María Gómez-Serrano, Inmaculada Jorge, Javier G Casado, Beatriz Macías-García
Endometrial Mesenchymal Stromal Cells (endMSCs) are multipotent cells with immunomodulatory and pro-regenerative activity which is mainly mediated by a paracrine effect. The exosomes released by MSCs have become a promising therapeutic tool for the treatment of immune-mediated diseases. More specifically, extracellular vesicles derived from endMSCs (EV-endMSCs) have demonstrated a cardioprotective effect through the release of anti-apoptotic and pro-angiogenic factors. Here we hypothesize that EV-endMSCs may be used as a co-adjuvant to improve in vitro fertilization outcomes and embryo quality...
2018: PloS One
https://www.readbyqxmd.com/read/29679284/garlic-allium-sativum-exhibits-a-cardioprotective-effect-in-experimental-chronic-renal-failure-rat-model-by-reducing-oxidative-stress-and-controlling-cardiac-na-k-atpase-activity-and-ca-2-levels
#2
Asmaa M S Gomaa, Alaa T Abdelhafez, Hazem A Aamer
Gentamicin (GNT)-induced nephrotoxicity culminates into renal failure with a possible cardiovascular impact. Garlic extract (GE) is a cardiovascular protectant with limited mechanistic data. Therefore, we assessed the disturbance in specific cardiac parameters and the potential protective effect of GE supplementation against them in a rat model of GNT-induced chronic renal failure (CRF). Adult male rats (n = 24) were randomly assigned into four groups (n = 6 each): normal controls (CON), garlic extract controls (GE; 250 mg kg-1 , orally), GNT-induced CRF (GNT; 100 mg kg-1 , i...
April 21, 2018: Cell Stress & Chaperones
https://www.readbyqxmd.com/read/29676955/mitochondrial-genome-modulates-myocardial-akt-glut-hk-salvage-pathway-in-spontaneously-hypertensive-rats-adapted-to-chronic-hypoxia
#3
Iveta Nedvedova, David Kolar, Barbara Elsnicova, Daniela Hornikova, Jiri Novotny, Martin Kalous, Michal Pravenec, Jan Neckar, Frantisek Kolar, Jitka M Zurmanova
Recently we have shown that adaptation to continuous normobaric hypoxia (CNH) decreases myocardial ischemia/reperfusion injury in spontaneously hypertensive rats (SHR) and in conplastic strain (SHR-mtBN ). The protective effect was stronger in the latter group characterized by a selective replacement of SHR mitochondrial genome with that of a more ischemia-resistant Brown Norway strain. The aim of the present study was to examine the possible involvement of the hypoxia inducible factor (HIF)-dependent pathway of the protein kinase B/glucose transporters/hexokinase (Akt/GLUT/HK) in this mitochondrial genome-related difference of the cardioprotective phenotype...
April 20, 2018: Physiological Genomics
https://www.readbyqxmd.com/read/29675132/honokiol-ameliorates-myocardial-ischemia-reperfusion-injury-in-type-1-diabetic-rats-by-reducing-oxidative-stress-and-apoptosis-through-activating-the-sirt1-nrf2-signaling-pathway
#4
Bin Zhang, Mengen Zhai, Buying Li, Zhenhua Liu, Kaifeng Li, Liqing Jiang, Meng Zhang, Wei Yi, Jian Yang, Dinghua Yi, Hongliang Liang, Zhenxiao Jin, Weixun Duan, Shiqiang Yu
Reducing oxidative stress is a crucial therapeutic strategy for ameliorating diabetic myocardial ischemia/reperfusion (MI/R) injury. Honokiol (HKL) acts as an effective cardioprotective agent for its strong antioxidative activity. However, its roles and underlying mechanisms against MI/R injury in type 1 diabetes (T1D) remain unknown. Since SIRT1 and Nrf2 are pivotal regulators in diabetes mellitus patients suffering from MI/R injury, we hypothesized that HKL ameliorates diabetic MI/R injury via the SIRT1-Nrf2 signaling pathway...
2018: Oxidative Medicine and Cellular Longevity
https://www.readbyqxmd.com/read/29674965/development-of-matrix-metalloproteinase-2-inhibitors-for-cardioprotection
#5
Péter Bencsik, Krisztina Kupai, Anikó Görbe, Éva Kenyeres, Zoltán V Varga, János Pálóczi, Renáta Gáspár, László Kovács, Lutz Weber, Ferenc Takács, István Hajdú, Gabriella Fabó, Sándor Cseh, László Barna, Tamás Csont, Csaba Csonka, György Dormán, Péter Ferdinandy
The objective of our present study is to develop novel inhibitors for MMP-2 for acute cardioprotection. In a series of pilot studies, novel substituted carboxylic acid derivatives were synthesized based on imidazole and thiazole scaffolds and then tested in a screeening cascade for MMP inhibition. We found that the MMP-inhibiting effects of imidazole and thiazole carboxylic acid-based compounds are superior in efficacy in comparison to the conventional hydroxamic acid derivatives of the same molecules. Based on these results, a 568-membered focused library of imidazole and thiazole compounds was generated in silico and then the library members were docked to the 3D model of MMP-2 followed by an in vitro medium throughput screening (MTS) based on a fluorescent assay employing MMP-2 catalytic domain...
2018: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/29673152/beneficial-effect-of-ocimum-sanctum-linn-against-monocrotaline-induced-pulmonary-hypertension-in-rats
#6
Himanshu Meghwani, Pankaj Prabhakar, Soheb A Mohammed, Pamila Dua, Sandeep Seth, Milind P Hote, Sanjay K Banerjee, Sudheer Arava, Ruma Ray, Subir Kumar Maulik
BACKGROUND: The study was designed to explore any beneficial effect of Ocimum sanctum (Linn) (OS) in experimental pulmonary hypertension (PH) in rats. OS is commonly known as “holy basil” and “Tulsi” and is used in the Indian System of Medicine as antidiabetic, antioxidant, hepatoprotective, adaptogenic, and cardioprotective. METHODS: Monocrotaline (MCT) administration caused development of PH in rats after 28 days and rats were observed for 42 days...
April 17, 2018: Medicines (Basel, Switzerland)
https://www.readbyqxmd.com/read/29672298/intermittent-hypoxia-inhibits-na-h-exchange-mediated-acid-extrusion-via-intracellular-na-accumulation-in-cardiomyocytes
#7
Huai-Ren Chang, Chih-Feng Lien, Jing-Ren Jeng, Jen-Che Hsieh, Chen-Wei Chang, Jian-Hong Lin, Kun-Ta Yang
BACKGROUND/AIMS: Intermittent hypoxia (IH) has been shown to exert preconditioning-like cardioprotective effects. It also has been reported that IH preserves intracellular pH (pHi) during ischemia and protects cardiomyocytes against ischemic reperfusion injury. However, the exact mechanism is still unclear. METHODS: In this study, we used proton indicator BCECF-AM to analyze the rate of pHi recovery from acidosis in the IH model of rat neonatal cardiomyocytes. Neonatal cardiomyocytes were first treated with repetitive hypoxia-normoxia cycles for 1-4 days...
April 16, 2018: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/29671939/synthetic-cpg-oligonucleotides-induce-a-genetic-profile-ameliorating-murine-myocardial-i-r-injury
#8
Tobias Hilbert, Paul Markowski, Stilla Frede, Olaf Boehm, Pascal Knuefermann, Georg Baumgarten, Andreas Hoeft, Sven Klaschik
We previously demonstrated that pre-conditioning with CpG oligonucleotide (ODN) 1668 induces quick up-regulation of gene expression 3 hours post-murine myocardial ischaemia/reperfusion (I/R) injury, terminating inflammatory processes that sustain I/R injury. Now, performing comprehensive microarray and biocomputational analyses, we sought to further enlighten the "black box" beyond these first 3 hours. C57BL/6 mice were pretreated with either CpG 1668 or with control ODN 1612, respectively. Sixteen hours later, myocardial ischaemia was induced for 1 hour in a closed-chest model, followed by reperfusion for 24 hours...
April 19, 2018: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/29671907/a-comprehensive-review-of-phytochemical-profile-bioactives-for-pharmaceuticals-and-pharmacological-attributes-of-azadirachta-indica
#9
REVIEW
Sumaira Saleem, Gulzar Muhammad, Muhammad Ajaz Hussain, Syed Nasir Abbas Bukhari
Azadirachta indica L. is a multipurpose medicinal tree of family Meliaceae. It occurs in tropical and semitropical regions of the world. Different parts of this miraculous tree are used to treat pyrexia, headache, ulcer, respiratory disorders, cancer, diabetes, leprosy, malaria, dengue, chicken pox, and dermal complications. The tree is popular for its pharmacological attributes such as hypolipidemic, antifertility, microbicidal, antidiabetic, anti-inflammatory, hepatoprotective, antipyretic, hypoglycemic, insecticidal, nematicidal, antiulcer, antioxidant, neuroprotective, cardioprotective, and antileishmaniasis properties...
April 19, 2018: Phytotherapy Research: PTR
https://www.readbyqxmd.com/read/29671063/aerobic-exercise-and-cardiopulmonary-fitness-in-childhood-cancer-survivors-treated-with-a-cardiotoxic-agent-a-meta-analysis
#10
REVIEW
Alexander Bourdon, Scott A Grandy, Melanie R Keats
PURPOSE: The main purpose of this review was to synthesize evidence from existing childhood cancer survivor studies that report the effect of aerobic exercise on cardiopulmonary fitness (a marker of cardiovascular health), in survivors that were currently receiving or had been treated with a cardiotoxic agent. METHODS: Studies were identified for this review by searching both electronic databases of peer-reviewed articles, as well as various sources of gray literature...
April 18, 2018: Supportive Care in Cancer: Official Journal of the Multinational Association of Supportive Care in Cancer
https://www.readbyqxmd.com/read/29670529/adenosine-receptor-mediated-cardioprotection-current-limitations-and-future-directions
#11
Robert D Lasley
Since the seminal reports of adenosine receptor-mediated cardioprotection in the early 1990s, there have been a multitude of such reports in various species and preparations. Original observations of the beneficial effects of A1 receptor agonists have been followed up with numerous reports also implicating A2A , A3 , and most recently A2B , receptor agonists as cardioprotective agents. Although adenosine has been approved for clinical use in the United States for the treatment of supraventricular tachycardia and coronary artery imaging, and the selective A2A agonist, regadenoson, for the latter, clinical use of adenosine receptor agonists for protecting the ischemic heart has not advanced beyond early trials...
2018: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/29670333/upregulation-of-vascular-endothelial-growth-factor-receptor-1-contributes-to-sevoflurane-preconditioning-mediated-cardioprotection
#12
Bin Qian, Yang Yang, Yusheng Yao, Yanling Liao, Ying Lin
Purpose: Sevoflurane preconditioning (SPC) can provide myocardial protective effects similar to ischemic preconditioning. However, the exact mechanism of SPC remains unclear. Previous studies indicate that vascular endothelial growth factor receptor 1 (VEGFR-1) is involved in ischemic preconditioning-mediated cardioprotection. This study was designed to determine the significance of VEGFR-1 signaling in SPC-mediated cardioprotection. Materials and methods: Myocardial ischemia-reperfusion (I/R) rat model was established using the Langendorff isolated heart perfusion apparatus...
2018: Drug Design, Development and Therapy
https://www.readbyqxmd.com/read/29669783/vasoactive-intestinal-peptide-ameliorates-acute-myocarditis-and-atherosclerosis-by-regulating-inflammatory-and-autoimmune-responses
#13
Raquel Benitez, Virginia Delgado-Maroto, Marta Caro, Irene Forte-Lago, Mario Duran-Prado, Francisco O'Valle, Andrew H Lichtman, Elena Gonzalez-Rey, Mario Delgado
Vasoactive intestinal peptide (VIP) is a neuropeptide that exerts various vascular and cardioprotective functions and regulates immune function and inflammatory response at multiple levels. However, its role in inflammatory cardiovascular disorders is largely unknown. Myocarditis and atherosclerosis are two inflammatory and autoimmune cardiovascular diseases that cause important adverse circulatory events. In this study, we investigate the therapeutic effects of VIP in various well-established preclinical models of experimental autoimmune myocarditis and atherosclerosis...
April 18, 2018: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/29669712/er-chaperone-grp78-protects-heart-from-ischemia-reperfusion-injury-through-akt-activation
#14
Xukun Bi, Guangyu Zhang, Xiaoding Wang, Chau Yt Nguyen, Herman I May, Xiaoting Li, Ali Al-Hashimi, Richard C Austin, Thomas G Gillette, Guo Sheng Fu, Zhao V Wang, Joseph A Hill
<u>Rationale:</u> Restoration of coronary artery blood flow is the most effective means of ameliorating myocardial damage triggered by ischemic heart disease. However, coronary reperfusion elicits an increment of additional injury to the myocardium. Accumulating evidence indicates that the unfolded protein response (UPR) in cardiomyocytes is activated by ischemia/reperfusion (I/R) injury. Xbp1s, the most highly conserved branch of the UPR, is protective in response to cardiac I/R injury. GRP78, a master regulator of the UPR and an Xbp1s target, is up-regulated after I/R...
April 18, 2018: Circulation Research
https://www.readbyqxmd.com/read/29668847/adiponectin-determines-farnesoid-x-receptor-agonism-mediated-cardioprotection-against-post-infarction-remodeling-and-dysfunction
#15
Yunlong Xia, Fuyang Zhang, Shihao Zhao, Yueyang Li, Xiyao Chen, Erhe Gao, Xinyue Xu, Zhenyu Xiong, Xiaomeng Zhang, Jinglong Zhang, Huishou Zhao, Wei Wang, Helin Wang, Yanjie Guo, Yi Liu, Congye Li, Shan Wang, Ling Zhang, Wenjun Yan, Ling Tao
Aims: The farnesoid X receptor (FXR) is a member of the metabolic nuclear receptor superfamily that plays a critical regulatory role in cardiovascular physiology/pathology. However, the role of systemic FXR activation in the chronic phase in myocardial infarction (MI)-induced cardiac remodeling and dysfunction remains unclear. In this study, we aimed to elucidate the role of long-term FXR activation on post-MI cardiac remodeling and dysfunction. Methods and Results: Mice underwent either MI surgery or sham operation...
April 14, 2018: Cardiovascular Research
https://www.readbyqxmd.com/read/29666943/the-gtn-patch-a-simple-and-effective-new-approach-to-cardioprotection
#16
Derek M Yellon, Zhenhe He, Rayomand Khambata, Amrita Ahluwalia, Sean M Davidson
There remains a significant un-met need to reduce the extent of myocardial injury caused by ischaemia and reperfusion injury in patients experiencing an ST-elevation MI. Although nitric oxide is central to many cardioprotective strategies currently undergoing investigation, cardioprotection from the delivery of nitrates/nitrites has been inconsistently observed. The route of administration appears to be a critical variable. The glyceryl trinitrate (GTN) patch is commonly used as a simple and practical means of delivering nitric oxide to patients with ischaemic heart disease, but whether acute cardioprotection can be achieved by application of a GTN patch has not been investigated before...
April 17, 2018: Basic Research in Cardiology
https://www.readbyqxmd.com/read/29666587/cardioprotective-effects-of-qishenyiqi-dripping-pills-on-transverse-aortic-constriction-induced-heart-failure-in-mice
#17
Guoran Ruan, Haojin Ren, Chi Zhang, Xiaogang Zhu, Chao Xu, Liyue Wang
QiShenYiQi dripping pills (QSYQ), a traditional Chinese medicine, are commonly used to treat coronary heart disease, and QSYQ was recently approved as a complementary treatment for ischemic heart failure in China. However, only few studies reported on whether QSYQ exerts a protective effect on heart failure induced by pressure overload. In this study, we explored the role of QSYQ in a mouse model of heart failure induced by transverse aortic constriction (TAC). Twenty-eight C57BL/6J mice were divided into four groups: Sham + NS group, Sham + QSYQ group, TAC + NS group, and TAC + QSYQ group...
2018: Frontiers in Physiology
https://www.readbyqxmd.com/read/29665363/isoquercetin-ameliorates-hyperglycemia-and-regulates-key-enzymes-of-glucose-metabolism-via-insulin-signaling-pathway-in-streptozotocin-induced-diabetic-rats
#18
Muthukumaran Jayachandran, Tongze Zhang, Kumar Ganesan, Baojun Xu, Stephen Sum Man Chung
Among the foremost common flavonoids within the human diet, quercetin glycosides possess neuroprotective, cardioprotective, anti-oxidative, chemopreventive, and anti-allergic properties. Isoquercetin is one such promising candidate with anti-diabetic potential. However, complete studies of its molecular action on insulin signaling pathway and carbohydrate metabolizing enzymes remain unclear. Hence, we have designed this study to accumulate the experimental evidence in support of anti-diabetic effects of isoquercetin...
April 14, 2018: European Journal of Pharmacology
https://www.readbyqxmd.com/read/29665360/alpha7-nicotinic-acetylcholine-receptor-activation-protects-against-myocardial-reperfusion-injury-through-modulation-of-autophagy
#19
Zuoxu Hou, Yaguang Zhou, Hongyan Yang, Yan Liu, Xuechao Mao, Xinghua Qin, Xiaoliang Li, Xing Zhang, Yuanyuan Hu
Alpha7 nicotinic acetylcholine receptor (α7nAChR) activation alleviates myocardial ischemia/reperfusion (MI/R) injury. However, the underlying mechanisms remain unclear. Here, we investigated the role of autophagy in α7nAChR-mediated cardioprotection and the molecular mechanisms involved. Activating α7nAChR with PNU-282987 at the initiation of reperfusion reduced myocardial infarct size in MI/R rats. PNU-282987 treatment also significantly inhibited MI/R-induced myocardial autophagy dysfunction as evidenced by the reduction of LC3-II/LC3-I ratio, Beclin-1 and p62 abundance...
April 14, 2018: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/29664427/effect-of-statins-on-sirtuin-1-and-endothelial-nitric-oxide-synthase-expression-in-young-patients-with-a-history-of-premature-myocardial-infarction
#20
Aylin Hatice Yamaç, Ülkan Kılıç
OBJECTIVE: The present study was an investigation of the effect of statins on the expression of circulating sirtuin 1 (SIRT1) and endothelial nitric oxide synthase (eNOS) proteins, and on the distribution of single nucleotide polymorphisms (SNPs) of the SIRT1 gene in patients with a history of premature myocardial infarction (PMI). METHODS: A total of 108 patients who had suffered from a premature ST-elevation myocardial infarction (STEMI) under the age of 45 years were enrolled in this study...
April 2018: Türk Kardiyoloji Derneği Arşivi: Türk Kardiyoloji Derneğinin Yayın Organıdır
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