Role of the lysyl oxidase enzyme family in cardiac function and disease

AbstractHeart diseases are a major cause of morbidity and mortality world-wide. Lysyl oxidase (LOX) and related LOX-like (LOXL) isoforms play a vital role in remodelling the extracellular matrix (ECM). The LOX family controls ECM formation by cross-linking collagen and elastin chains. LOX/LOXL proteins are copper-dependent amine oxidases that catalyse the oxidation of lysine, causing cross-linking between the lysine moieties of lysine-rich proteins. Dynamic changes in LOX and LOXL protein-expression occur in a variety of cardiac pathologies; these changes are believed to be central to the associated tissue-fibrosis. An awareness of the potential pathophysiological importance of LOX has led to the evaluation of interventions that target LOX/LOXL proteins for heart-disease therapy. The purposes of this review article are: (i) to summarize the basic biochemistry and enzyme function of LOX and LOXL proteins; (ii) to consider their tissue and species distribution; and (iii) to review the results of experimental studies of the roles of LOX and LOXL proteins in heart disease, addressing involvement in the mechanisms, pathophysiology and therapeutic responses based on observations in patient samples and relevant animal models. Therapeutic targeting of LOX family enzymes has shown promising results in animal models, but small-molecule approaches have been limited by non-specificity and off-target effects. Biological approaches show potential promise but are in their infancy. While the...
Source: Cardiovascular Research - Category: Cardiology Source Type: research

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Resumo O aneurisma de art éria poplítea (AAP) é o mais frequente dos aneurismas periféricos, correspondendo a 85% do total de aneurismas. Normalmente, são assintomáticos, e o diagnóstico, em geral, é feito por meio do exame físico, tendo uma maior incidência no sexo masculino e em idosos. São bilaterais em 50% dos casos e, em 60% das vezes, estão associados a aneurisma de aorta abdominal. Apresentamos um paciente do sexo masculino com 72 anos de idade, com duas massas pulsáteis em ambas as regiões poplíteas, assintom&aac...
Source: Jornal Vascular Brasileiro - Category: Surgery Source Type: research
Publication date: Available online 9 December 2019Source: Canadian Journal of DiabetesAuthor(s): Lingning Huang, Yongze Zhang, Yunmin Wang, Ximei Shen, Sunjie YanAbstractAimsInvestigate association between diabetic peripheral neuropathy (DPN)and above normal blood pressure in non-hypertensive patients with type 2 diabetes mellitus(T2DM). Compare the achievement of clinical target for DPN and non-DPN withT2DM .MethodsA retrospective survey was administered to 3810 patients with type 2 diabetes. Cases were grouped according to the Toronto Clinical Scoring System (TCSS): Non-DPN, Mild DPN, Moderate DPN and Severe DPN. 1835 pa...
Source: Canadian Journal of Diabetes - Category: Endocrinology Source Type: research
Abstract The main constituents of the Euterpe oleracea Mart., Arecaceae, fruits (a çaí) are anthocyanins. This paper aimed to standardize the extraction process and characterize an anthocyanin-rich dry extract obtained from this fruit. A 23 full factorial design was used. The volumes of ethanol 92% and acetic acid and the extraction time were used as factors. Total solids and an thocyanins content were used as feedback. The dry extract was obtained by freeze-drying. The content of anthocyanins was determined spectrophotometrically. Fourier Transform Infrared Spectroscopy, Differential Scanning Calorimeter, Th...
Source: Revista Brasileira de Farmacognosia - Category: Drugs & Pharmacology Source Type: research
Conditions:   Liver Cirrhoses;   Portal Hypertension Interventions:   Diagnostic Test: Esophagogastroduodenoscopy;   Diagnostic Test: Endoscopic ultrasound Sponsor:   Instituto Ecuatoriano de Enfermedades Digestivas Recruiting
Source: ClinicalTrials.gov - Category: Research Source Type: clinical trials
Condition:   Fatty Liver Disease Intervention:   Other: A complete cardiovascular and liver characterization will be carried out Sponsors:   Instituto de Investigación Marqués de Valdecilla;   Hospital Universitario Puerta del Hierro Majadahonda.;   Hospital Universitario Ramón y Cajal;   Hospital General Universitario Gregorio Marañón Not yet recruiting
Source: ClinicalTrials.gov - Category: Research Source Type: clinical trials
Condition:   Lymphoma Interventions:   Drug: Carvedilol;   Drug: Lisinopril;   Drug: Pravastatin;   Drug: Spironolactone Sponsor:   Mayo Clinic Not yet recruiting
Source: ClinicalTrials.gov - Category: Research Source Type: clinical trials
Time limit: 0 Quiz-summary 0 of 20 questions completed Questions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Information This test series requires login for attempting. You can login easily with your Facebook account (Use the CONNECT WITH icon on the upper part of right sidebar displaying t...
Source: Cardiophile MD - Category: Cardiology Authors: Tags: General Cardiology Source Type: blogs
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Source: Cardiophile MD - Category: Cardiology Authors: Tags: Cardiology MCQ DM / DNB Cardiology Entrance Source Type: blogs
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Source: Cardiophile MD - Category: Cardiology Authors: Tags: Cardiology MCQ DM / DNB Cardiology Entrance Featured Source Type: blogs
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Source: Cardiophile MD - Category: Cardiology Authors: Tags: Cardiology MCQ DM / DNB Cardiology Entrance Featured Source Type: blogs
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