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https://www.readbyqxmd.com/read/28652542/therapeutic-potential-of-ghrelin-and-des-acyl-ghrelin-against-chemotherapy-induced-cardiotoxicity
#1
Miki Nonaka, Nagomi Kurebayashi, Takashi Murayama, Masami Sugihara, Kiyoshi Terawaki, Seiji Shiraishi, Kanako Miyano, Hiroshi Hosoda, Shosei Kishida, Kenji Kangawa, Takashi Sakurai, Yasuhito Uezono
Cancer was considered an incurable disease for many years; however, with the development of anticancer drugs and state-of-the art technologies, it has become curable. Cardiovascular diseases in patients with cancer or induced by cancer chemotherapy have recently become a great concern. Certain anticancer drugs and molecular targeted therapies cause cardiotoxicity, which limit the widespread implementation of cancer treatment and decrease the quality of life in cancer patients significantly. The anthracycline doxorubicin (DOX) causes cardiotoxicity...
2017: Endocrine Journal
https://www.readbyqxmd.com/read/28646013/doxorubicin-effect-on-myocardial-metabolism-as-a-pre-requisite-for-subsequent-development-of-cardiac-toxicity-a-translational-18-f-fdg-pet-ct-observation
#2
Matteo Bauckneht, Giulia Ferrarazzo, Francesco Fiz, Silvia Morbelli, Matteo Sarocchi, Fabio Pastorino, Alberto Ghidella, Elena Pomposelli, Maurizio Miglino, Pietro Ameri, Laura Emionite, Flavia Ticconi, Eleonora Arboscello, Ambra Buschiazzo, Elena Augusta Massimelli, Salvatore Fiordoro, Anna Borra, Vanessa Cossu, Annalisa Bozzano, Adalberto Ibatici, Mirco Ponzoni, Paolo Spallarossa, Andrea Gallamini, Paolo Bruzzi, Gianmario Sambuceti, Cecilia Marini
The present translational study aimed to verify whether serial (18)F-fluoro-deoxyglucose Positron Emission Tomography/Computed Tomography (FDG-PET/CT), predicts doxorubicin cardiotoxicity. Methods: Fifteen athymic mice were treated with intravenous administration of saline (n = 5), doxorubicin 5 mg/Kg (n = 5) or doxorubicin 7.5 mg/Kg (n = 5) and submitted to dynamic microPET scan to estimate left ventricular glucose consumption (LV-MRGlu) before and after chemotherapy. Thereafter, we retrospectively identified 69 patients successfully treated with Adriamycin, Bleomycin, Vinblastine, and Dacarbazine (ABVD) regimen for Hodgkin's Disease (HD) and submitted to four consecutive FDG-PET/CT scans...
June 23, 2017: Journal of Nuclear Medicine: Official Publication, Society of Nuclear Medicine
https://www.readbyqxmd.com/read/28645043/in-vitro-and-in-vivo-behavior-of-dna-tetrahedrons-as-tumor-targeting-nanocarriers-for-doxorubicin-delivery
#3
Ji Hee Kang, Kyoung-Ran Kim, Hyukjin Lee, Dae-Ro Ahn, Young Tag Ko
Deoxyribonucleic acid (DNA) is a versatile material with high applicability and inherent biocompatibility. L-DNA, the perfect mirror form of the naturally occurring D-DNA, has been used in DNA nanotechnology. It has thermodynamically identical properties to D-DNA, is capable of self-assembly and bio-orthogonal base-pairing, and is resistant to nuclease activity. We previously constructed an L-DNA tetrahedron (L-Td) and found that this nanostructure has remarkably higher capacity for cell penetration than its natural counterpart (D-Td)...
June 16, 2017: Colloids and Surfaces. B, Biointerfaces
https://www.readbyqxmd.com/read/28644052/a-little-dab-will-do-ya-in-a-case-report-of-neuro-and-cardiotoxicity-following-use-of-cannabis-concentrates
#4
Shannon S Rickner, Dazhe Cao, Kurt Kleinschmidt, Steven Fleming
CONTEXT: The use of marijuana and cannabis concentrates is increasing, especially following decriminalization in several states. Psychosis and cardiotoxicity have been reported following cannabis use; however, myocardial injury from "dabbing" has not yet been reported. We report a case of hyperthermia, tachycardia, hypertension, severe agitation, neuro-, and cardiotoxicity following the use of "dabs" where there is concomitant confirmatory biological and sample testing. CASE DETAILS: A 17-year-old athletic man developed agitation requiring sedation and intubation for safety, with peak systolic blood pressures in the 190s and hyperthermia (to 102 °F)...
June 23, 2017: Clinical Toxicology
https://www.readbyqxmd.com/read/28643731/cardiotoxic-effects-of-radiotherapy-and-strategies-to-reduce-them-in-patients-with-breast-cancer-an-overview
#5
REVIEW
Katarzyna Rygiel
Cardiotoxicity of various anticancer therapies, including radiotherapy (RT), can lead to cardiovascular (CV) complications, and their severity depends on many factors, including the site of action, the applied dose, the method of administration, the presence of pre-existing CV diseases, or CV risk factors, the individual patient characteristics, and the current or previous use of antineoplastic therapies. Cardiotoxicity can occur immediately upon administration of the anticancer therapy or it may have a delayed onset (months or years after the treatment)...
April 2017: Journal of Cancer Research and Therapeutics
https://www.readbyqxmd.com/read/28643438/knockdown-of-mtfp1-can-minimize-doxorubicin-cardiotoxicity-by-inhibiting-dnm1l-mediated-mitochondrial-fission
#6
Lynn H H Aung, Ruibei Li, Bellur S Prabhakar, Peifeng Li
The long-term usage of doxorubicin (DOX) is largely limited due to the development of severe cardiomyopathy. Many studies indicate that DOX-induced cardiac injury is related to reactive oxygen species generation and ultimate activation of apoptosis. The role of novel mitochondrial fission protein 1 (Mtfp1) in DOX-induced cardiotoxicity remains elusive. Here, we report the pro-mitochondrial fission and pro-apoptotic roles of Mtfp1 in DOX-induced cardiotoxicity. DOX up-regulates the Mtfp1 expression in HL-1 cardiac myocytes...
June 23, 2017: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/28643108/integrated-tk-td-modeling-for-drug-induced-concurrent-tachycardia-and-qt-changes-in-beagle-dogs
#7
Fan Wu, Tycho Heimbach, Panos Hatsis, Hai-Ming Tang, Raviprakash Dugyala, Qin Yue, Tao Wang, Handan He
Drug-induced cardiotoxicity, including tachycardia and QT prolongation, remains a major safety concern that needs to be identified and its risk mitigated in early stages of drug development. In the present study, an integrated toxicokinetic-toxicodynamic (TK-TD) modeling approach within a nonlinear mixed-effect modeling framework is applied to investigate concurrent abnormal heart rate and QT changes in three beagle dogs, using a Novartis internal compound (NVS001) as the case example. By accounting for saturable drug absorption, circadian rhythms, drug-effect tolerance, and nonlinear rate-dependency of QT interval, the dynamic TK-TD model captures the experimentally observed drug effects on heart rate and QT interval across a wide dosing range of NVS001 in beagle dogs...
June 22, 2017: Journal of Pharmacokinetics and Pharmacodynamics
https://www.readbyqxmd.com/read/28642833/creating-a-biomarker-panel-for-early-detection-of-chemotherapy-related-cardiac-dysfunction-in-breast-cancer-patients
#8
Krithika Srikanthan, Rebecca Klug, Maria Tirona, Ellen Thompson, Haresh Visweshwar, Nitin Puri, Joseph Shapiro, Komal Sodhi
Cardiotoxicity is an important issue for breast cancer patients receiving anthracycline-trastuzumab therapy in the adjuvant setting. Studies show that 3-36% of patients receiving anthracyclines and/or trastuzumab experience chemotherapy related cardiac dysfunction (CRCD) and approximately 17% of patients must stop chemotherapy due to the consequences of CRCD. There is currently no standardized, clinically verified way to detect CRCD early, but common practices include serial echocardiography and troponin measurements, which can be timely, costly, and not always available in areas where health care resources are scarce...
March 2017: Journal of Clinical & Experimental Cardiology
https://www.readbyqxmd.com/read/28640563/-smoking-vaping-and-cardiovascular-risk-an-update
#9
Sofia Dalkou, Carole Clair
It is well known that tobacco smoking increases cardiovascular (CV) mortality and morbidity, however, smoking cessation is often neglected compared to other CV risk factors. Behavioral counseling as well as smoking cessation treatments are efficient and do not increase the risk of CV events when used for a defined duration. Electronic nicotine delivery systems (ENDS) contain potentially cardiotoxic substances but in lower concentrations than in cigarettes. The CV effect of ENDS is to date difficult to assess and depends on the type of device used and its mode of consumption...
June 7, 2017: Revue Médicale Suisse
https://www.readbyqxmd.com/read/28640223/non-targeted-metabolomics-analysis-of-the-effects-of-tyrosine-kinase-inhibitors-sunitinib-and-erlotinib-on-heart-muscle-liver-and-serum-metabolism-in-vivo
#10
Brian C Jensen, Traci L Parry, Wei Huang, Amro Ilaiwy, James R Bain, Michael J Muehlbauer, Sara K O'Neal, Cam Patterson, Gary L Johnson, Monte S Willis
Background: More than 90 tyrosine kinases have been implicated in the pathogenesis of malignant transformation and tumor angiogenesis. Tyrosine kinase inhibitors (TKIs) have emerged as effective therapies in treating cancer by exploiting this kinase dependency. The TKI erlotinib targets the epidermal growth factor receptor (EGFR), whereas sunitinib targets primarily vascular endothelial growth factor receptor (VEGFR) and platelet-derived growth factor receptor (PDGFR).TKIs that impact the function of non-malignant cells and have on- and off-target toxicities, including cardiotoxicities...
June 22, 2017: Metabolites
https://www.readbyqxmd.com/read/28639275/statin-regulated-erk5-stimulates-tight-junction-formation-and-reduces-permeability-in-human-cardiac-endothelial-cells
#11
Emma L Wilkinson, James E Sidaway, Michael J Cross
The MEKK3/MEK5/ERK5 signalling axis is required for cardiovascular development in vivo. We analysed the physiological role of ERK5 in cardiac endothelial cells and the consequence of activation of this kinase by the statin class of HMG Co-A reductase inhibitor drugs. We utilised human microvascular endothelial cells (HCMECs) and altered ERK5 expression using siRNA mediated gene silencing or overexpression of constitutively active MEK5 and ERK5 to reveal a role for ERK5 in regulating endothelial tight junction formation and cell permeability...
June 21, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/28638579/non-st-elevation-myocardial-infarction-secondary-to-carbon-monoxide-intoxication
#12
Danuta Jankowska, Venkataraman Palabindala, Sohail Abdul Salim
Carbon monoxide poisoning has been documented in literature to cause severe neurological and tissue toxicity within the body. However, cardiotoxicity is often overlooked, but not uncommon. Previous research studies and case reports have revealed a significant relationship between carbon monoxide intoxication and myocardial ischemic events. We report a case of a 48-year-old male, who was exposed to severe smoke inhalation due to a house fire and subsequently developed a non-ST elevation myocardial infarction...
March 2017: Journal of Community Hospital Internal Medicine Perspectives
https://www.readbyqxmd.com/read/28636296/-follow-up-of-the-long-term-cancer-survivor
#13
Francesco Sciotto, Céline Py, Petros Tsantoulis
Improvements in diagnosis and treatments explain the notable increase in patients chronically affected or recovering from cancer. This is a fragile population, who is physically, psychologically and socially affected by the consequences of the disease and the associated treatments. In addition to detecting a possible relapse, oncologists and primary care physicians have to deal with a variety of issues like psychological distress, sexual dysfunction, cardiotoxicity, cognitive impairment, fatigue and, in some cases, a second primary cancer...
May 17, 2017: Revue Médicale Suisse
https://www.readbyqxmd.com/read/28636290/sulforaphane-protection-against-the-development-of-doxorubicin-induced-chronic-heart-failure-is-associated-with-nrf2-upregulation
#14
Yang Bai, Qiang Chen, Yun-Peng Sun, Xuan Wang, Li Lv, Li-Ping Zhang, Jin-Sha Liu, Song Zhao, Xiao-Lu Wang
Doxorubicin (DOX) is an anthracycline anti-tumor drug. However, its clinical use is limited by dose-dependent cardiotoxicity, and even progresses to chronic heart failure (CHF). OBJECTIVE: This study aims to investigate whether the Nrf2 activator, sulforaphane (SFN), can prevent DOX-induced CHF. METHODS: Male Sprague Dawley rats who received treatment for six weeks were divided into four groups (n=30 per group): control, SFN, DOX, and DOX plus SFN group. RESULTS: Results revealed that DOX induced progressive cardiac damage as indicated by increased cardiac injury markers, cardiac inflammation, fibrosis and oxidative stress...
June 21, 2017: Cardiovascular Therapeutics
https://www.readbyqxmd.com/read/28629532/hypaconitine-inhibits-tgf-%C3%AE-1-induced-epithelial-mesenchymal-transition-and-suppresses-adhesion-migration-and-invasion-of-lung-cancer-a549-cells
#15
Hai-Tao Feng, Wen-Wen Zhao, Jin-Jian Lu, Yi-Tao Wang, Xiu-Ping Chen
Epithelial-mesenchymal transition (EMT) has been implicated in tumor invasion and metastasis and provides novel strategies for cancer therapy. Hypaconitine (HpA), a diester-diterpenoid alkaloid isolated from the root of the Aconitum species, exhibits anti-inflammatory, analgesic, and especially, cardiotoxic activities. Here, we reported the anti-metastatic potentials of HpA in transforming growth factor-β1 (TGF-β1)-induced EMT in lung cancer A549 cells. The cytotoxic effect of HpA was determined by MTT assay...
June 2017: Chinese Journal of Natural Medicines
https://www.readbyqxmd.com/read/28629338/a-phase-2-randomized-trial-to-evaluate-the-impact-of-a-supervised-exercise-program-on-cardiotoxicity-at-3%C3%A2-months-in-patients-with-her2-overexpressing-breast-cancer-undergoing-adjuvant-treatment-by-trastuzumab-design-of-the-cardapac-study
#16
Quentin Jacquinot, Nathalie Meneveau, Marion Chatot, Franck Bonnetain, Bruno Degano, Malika Bouhaddi, Gilles Dumoulin, Dewi Vernerey, Xavier Pivot, Fabienne Mougin
BACKGROUND: The overexpression of human epidermal growth factor receptor-2 (HER2) in breast cancer is a poor prognosis. Trastuzumab improves overall survival but is associated with cardiotoxicity, especially a decline in left ventricular ejection fraction (LVEF). In addition, chemotherapy and radiotherapy increase fatigue and pain, decrease physical capacity and health-related quality of life. To date, no study has evaluated the benefits of physical activity on the side effects of treatment in patients with HER2 positive breast cancer...
June 19, 2017: BMC Cancer
https://www.readbyqxmd.com/read/28628163/-quantitative-structure-activity-relationship-model-for-prediction-of-cardiotoxicity-of-chemical-components-in-traditional-chinese-medicines
#17
(no author information available yet)
OBJECTIVE: Some quantitative structure-activity relationship (QSAR) models have been developed to predict cardiac toxicity of drugs, which have limited predictive power due to based on hERG channel inhibition. The objective of this study was try to develop a QSAR model based on all kinds of cardiac adverse effects, and to predict the potential cardiotoxicity of chemical components in traditional Chinese medicines (TCM). METHODS: In this study, the compounds data of all kinds of cardiac adverse reactions were selected as the training set...
June 18, 2017: Beijing da Xue Xue Bao. Yi Xue Ban, Journal of Peking University. Health Sciences
https://www.readbyqxmd.com/read/28624441/hsp90-inhibitor-geldanamycin-attenuates-the-cytotoxicity-of-sunitinib-in-cardiomyocytes-via-inhibition-of-the-autophagy-pathway
#18
Takayuki Kimura, Mai Uesugi, Kazuma Takase, Norimasa Miyamoto, Kohei Sawada
Sunitinib malate (sunitinib) is an orally available, multitargeted tyrosine kinase inhibitor with antitumor and antiangiogenic activities. Although sunitinib is effective for the treatment of patients with gastrointestinal stromal tumor, advanced renal cell carcinoma, or pancreatic neuroendocrine tumor, adverse cardiac events associated with sunitinib administration have been reported. Here, we examined the effect of geldanamycin, an inhibitor of heat shock protein (Hsp) 90, on sunitinib-induced cytotoxicity in cardiomyocytes...
June 15, 2017: Toxicology and Applied Pharmacology
https://www.readbyqxmd.com/read/28623750/lcz696-improves-cardiac-function-via-alleviating-drp1-mediated-mitochondrial-dysfunction-in-mice-with-doxorubicin-induced-dilated-cardiomyopathy
#19
Yan Xia, Zhangwei Chen, Ao Chen, Mingqiang Fu, Zhen Dong, Kai Hu, Xiangdong Yang, Yunzeng Zou, Aijun Sun, Juying Qian, Junbo Ge
AIMS: LCZ696, a novel angiotensin receptor neprilysin inhibitor, is effective in treating heart failure patients. Doxorubicin (DOX) is an effective antitumor medication but the cardiotoxicity limited its clinical use. In this study, we aimed to determine the effect of LCZ696 on DOX-induced cardiomyopathy in mice and in vitro and to explore related mechanisms focusing on fission protein dynamin-related protein 1 (Drp1). METHODS AND RESULTS: In human study, we found that myocardial fission protein Drp1 expression and its ser 616 phosphorylation were significantly increased in dilated cardiomyopathy (DCM) patients...
June 14, 2017: Journal of Molecular and Cellular Cardiology
https://www.readbyqxmd.com/read/28622605/flexible-nanofilms-coated-with-aligned-piezoelectric-microfibers-preserve-the-contractility-of-cardiomyocytes
#20
P José Gouveia, S Rosa, L Ricotti, B Abecasis, H V Almeida, L Monteiro, J Nunes, F Sofia Carvalho, M Serra, S Luchkin, A Leonidovitch Kholkin, P Marques Alves, P Jorge Oliveira, R Carvalho, A Menciassi, R Pires das Neves, L Silva Ferreira
The use of engineered cardiac tissue for high-throughput drug screening/toxicology assessment remains largely unexplored. Here we propose a scaffold that mimics aspects of cardiac extracellular matrix while preserving the contractility of cardiomyocytes. The scaffold is based on a poly(caprolactone) (PCL) nanofilm with magnetic properties (MNF, standing for magnetic nanofilm) coated with a layer of piezoelectric (PIEZO) microfibers of poly(vinylidene fluoride-trifluoroethylene) (MNF+PIEZO). The nanofilm creates a flexible support for cell contraction and the aligned PIEZO microfibers deposited on top of the nanofilm creates conditions for cell alignment and electrical stimulation of the seeded cells...
September 2017: Biomaterials
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