keyword
MENU ▼
Read by QxMD icon Read
search

Cardiovascular tissue

keyword
https://www.readbyqxmd.com/read/28109788/microbial-hydroxylation-and-glycosylation-of-pentacyclic-triterpenes-as-inhibitors-on-tissue-factor-procoagulant-activity
#1
Wei-Wei Wang, Shao-Hua Xu, Ya-Zheng Zhao, Chao Zhang, Yuan-Yuan Zhang, Bo-Yang Yu, Jian Zhang
To discover new inhibitors on tissue factor procoagulant activity, 20 pentacyclic triterpenes were semi-synthetized through microbial transformation and assayed on the model of human THP-1 cells stimulated by lipopolysaccharide. In the biotransformation two types of reactions were observed, regio-selective hydroxylation and glycosylation. The bioassay results showed that most of tested compounds were significant effective on this model and two of the biotransformation products 23-hydroxy-28-O-β-d-glucopyranosyl betulinic acid (3d) and 28-O-β-d-glucopyranosyl oleanic acid (1a) exhibited most potential activities with the IC50 values of 0...
December 29, 2016: Bioorganic & Medicinal Chemistry Letters
https://www.readbyqxmd.com/read/28109368/minocycline-induced-hyperpigmentation-mimicking-aortic-dissection
#2
Tinera Buckley, Justin Lee, Keith E Gipson, Jonathan Earle
Minocycline-induced hyperpigmentation of tissues has been documented previously, but extensive cardiovascular involvement is rarely described in literature. We report a case of marked cardiovascular hyperpigmentation resulting from approximately 4 years of minocycline exposure. We will highlight how intraoperative differentiation of minocycline-induced hyperpigmentation from more sinister causes of discoloration led to the appropriate surgical management.
February 2017: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/28108330/pleiotropic-responses-to-methionine-restriction
#3
Gene Ables, Jay Johnson
Methionine restriction (MR) extends lifespan across different species. The main responses of rodent models to MR are well-documented in adipose tissue (AT) and liver, which have reduced mass and improved insulin sensitivity, respectively. Recently, molecular mechanisms that improve healthspan have been identified in both organs during MR. In fat, MR induced a futile lipid cycle concomitant with beige AT accumulation, producing elevated energy expenditure. In liver, MR upregulated fibroblast growth factor 21 and improved glucose metabolism in aged mice and in response to a high-fat diet...
January 17, 2017: Experimental Gerontology
https://www.readbyqxmd.com/read/28106465/evaluation-of-99m-tc-mibi-in-thyroid-gland-imaging-for-the-diagnosis-and-classification-of-amiodarone-induced-thyrotoxicosis
#4
Junqi Wang, Ruiguo Zhang
OBJECTIVE: Amiodarone-induced thyrotoxicosis (AIT) is caused by aminodaroneas a side effect of cardiovascular disease treatment. Based on the differences in their pathological and physiological mechanisms, many methods have been developed so far to differentiate AIT subtypes such as color flow Doppler sonography (CFDS)and 24 h radioiodine uptake (RAIU). However, these methods suffer from inadequate accuracy in distinguishing different types of AITs and sometimes lead to misdiagnosis and delayed treatments...
January 20, 2017: British Journal of Radiology
https://www.readbyqxmd.com/read/28104773/exosomes-generated-from-ipsc-derivatives-new-direction-for-stem-cell-therapy-in-human-heart-diseases
#5
REVIEW
Ji-Hye Jung, Xuebin Fu, Phillip C Yang
Cardiovascular disease (CVD) is the leading cause of death in modern society. The adult heart innately lacks the capacity to repair and regenerate the damaged myocardium from ischemic injury. Limited understanding of cardiac tissue repair process hampers the development of effective therapeutic solutions to treat CVD such as ischemic cardiomyopathy. In recent years, rapid emergence of induced pluripotent stem cells (iPSC) and iPSC-derived cardiomyocytes presents a valuable opportunity to replenish the functional cells to the heart...
January 20, 2017: Circulation Research
https://www.readbyqxmd.com/read/28104476/combined-effects-of-vitamin-e-and-omega-3-fatty-acids-on-protecting-ambient-pm2-5-induced-cardiovascular-injury-in-rats
#6
Xihao Du, Shuo Jiang, Liang Bo, Jie Liu, Xuejiao Zeng, Yuquan Xie, Qing He, Xingwang Ye, Weiming Song, Jinzhuo Zhao
OBJECTIVE: This study aims to observe whether the combined treatment with vitamin E (vit E) and omega-3 polyunsaturated fatty acids (Ω-3 FA) could prevent the fine particulate matter (PM2.5)-induced cardiovascular injury through alleviating inflammation and oxidative stress. At the same time, the appropriate combination dosage of vit E and Ω-3 FA was explored to find an optimized protective dose to protect the injury induced by PM2.5. METHODS: The SD rats were pretreated with different concentration of vit E and Ω-3 FA separately or jointly...
January 8, 2017: Chemosphere
https://www.readbyqxmd.com/read/28103890/the-association-between-diabetes-and-dermal-microvascular-dysfunction-non-invasively-assessed-by-laser-doppler-with-local-thermal-hyperemia-a-systematic-review-with-meta-analysis
#7
REVIEW
Dagmar Fuchs, Pepijn P Dupon, Laura A Schaap, Richard Draijer
BACKGROUND/INTRODUCTION: Diabetes and cardiovascular disease develop in concert with metabolic abnormalities mirroring and causing changes in the vasculature, particularly the microcirculation. The microcirculation can be affected in different parts of the body of which the skin is the most easily accessible tissue. PURPOSE: The association between diabetes and dermal microvascular dysfunction has been investigated in observational studies. However, the strength of the association is unknown...
January 19, 2017: Cardiovascular Diabetology
https://www.readbyqxmd.com/read/28102862/mutation-spectrum-in-the-abcc6-gene-and-genotype-phenotype-correlations-in-a-french-cohort-with-pseudoxanthoma-elasticum
#8
Anne Legrand, Laurence Cornez, Wafa Samkari, Jean-Michael Mazzella, Annabelle Venisse, Valérie Boccio, Karine Auribault, Boris Keren, Karelle Benistan, Dominique P Germain, Michael Frank, Xavier Jeunemaitre, Juliette Albuisson
PURPOSE: Pseudoxanthoma elasticum (PXE) is an autosomal recessive disorder caused by variants in the ABCC6 gene. Ectopic mineralization of connective tissues leads to skin, eye, and cardiovascular manifestations with considerable phenotypic variability of unknown cause. We aimed to identify genotype-phenotype correlations in PXE. METHODS: A molecular analysis was performed on 458 French PXE probands clinically evaluated using the Phenodex score (PS). Variant topographic analysis and genotype-phenotype correlation analysis were performed according to the number and type of identified variants...
January 19, 2017: Genetics in Medicine: Official Journal of the American College of Medical Genetics
https://www.readbyqxmd.com/read/28102596/delineation-of-ehlers-danlos-syndrome-phenotype-due-to-the-c-934c-t-p-arg312cys-mutation-in-col1a1-report-on-a-three-generation-family-without-cardiovascular-events-and-literature-review
#9
Marina Colombi, Chiara Dordoni, Marina Venturini, Arianna Zanca, Piergiacomo Calzavara-Pinton, Marco Ritelli
Classical Ehlers-Danlos syndrome (cEDS) is a rare connective tissue disorder primarily characterized by hyperextensible skin, defective wound healing, abnormal scars, easy bruising, and generalized joint hypermobility; arterial dissections are rarely observed. Mutations in COL5A1 and COL5A2 encoding type V collagen account for more than 90% of the patients so far characterized. In addition, cEDS phenotype was reported in a small number of patients carrying the c.934C>T mutation in COL1A1 that results in an uncommon substitution of a non-glycine residue in one Gly-Xaa-Yaa repeat of the pro-α1(I)-chain p...
February 2017: American Journal of Medical Genetics. Part A
https://www.readbyqxmd.com/read/28101187/severe-pneumonia-due-to-infection-with-candida-krusei-in-a-case-of-suspected-middle-east-respiratory-syndrome-a-case-report-and-literature-review
#10
Mingming Tan, Junwei Wang, Peiyang Hu, Bin Wang, Wanghua Xu, Jiao Chen
Candida krusei (C. krusei) pneumonia is a rare infection that is frequently associated with a poor outcome. The present study reports an unusual case of C. krusei pneumonia that was initially suspected to be a Middle East respiratory syndrome (MERS) case. A 64-year-old Saudi Arabian male patient was admitted to our hospital with complaints of cough and dyspnea that persisted for 6 days. The patient presented fever (oral temperature, 38.5°C) and slight tachypnea (25 respirations/min). A chest computerized tomography demonstrated unclear lung fields, diffuse pathological changes in the two lungs and multiple lymphadenectasis in the retrocaval and para-aortic arch area...
December 2016: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28100965/aspirin-resistance-predicts-adverse-cardiovascular-events-in-patients-with-symptomatic-peripheral-artery-disease
#11
Tilak Pasala, Jennifer Soo Hoo, Mary Kate Lockhart, Rehan Waheed, Prasanna Sengodan, Jeffrey Alexander, Sanjay Gandhi
Antiplatelet therapy reduces the risk of myocardial infarction, stroke, and vascular death in patients who have symptomatic peripheral artery disease. However, a subset of patients who take aspirin continues to have recurrent cardiovascular events. There are few data on cardiovascular outcomes in patients with peripheral artery disease who manifest aspirin resistance. Patients with peripheral artery disease on long-term aspirin therapy (≥4 wk) were tested for aspirin responsiveness by means of the VerifyNow Aspirin Assay...
December 2016: Texas Heart Institute Journal
https://www.readbyqxmd.com/read/28100847/genetic-background-of-aberrant-thermogenin-expression-ucp1-in-obesity-leading-to-metabolic-syndrome
#12
Małgorzata Stosio, Agata Witkowicz, Anna Kowalska, Lidia Karabon
Cardiovascular and metabolic disturbances individually and interdependently lead to chronic pathological conditions observed in cardio-metabolic diseases (CMDs). In Europe, the morbidity and mortality caused by cardiovascular disease are the highest among all diseases. Therefore, it seems important to search for new and alternative therapies for obesity, which is the main cause of type 2 diabetes (T2D) and cardiovascular disease (CD). Great attention has been paid to the role of brown adipose tissue in fat burning and the possibility of transformation of the white adipose tissue to cells with brown adipose tissue function as a potential form of treatment of obesity...
December 31, 2016: Postȩpy Higieny i Medycyny Doświadczalnej
https://www.readbyqxmd.com/read/28100216/antispasmodic-bronchodilator-vasorelaxant-and-cardiosuppressant-effects-of-buxus-papillosa
#13
Arif-Ullah Khan, Shamsher Ali, Anwarul-Hassan Gilani, Manzoor Ahmed, Muhammad Iqbal Choudhary
BACKGROUND: The present research was carried out to investigate pharmacological properties of Buxus papillosa C.K. Schneid. (Buxaceae). METHODS: Buxus papillosa extracts of leaves (BpL), stem (BpS), roots (BpR) and BpL fractions: hexane (BpL-H), aqueous (BpL-A) also plant constituent, cyclomicrobuxine effect were studied in jejunum, atria, aorta and tracheal preparations from rabbit and guine-peg. RESULTS: Ca(++) antagonistic effect of BpS, BpR, BpL-H, BpL-A and cyclomicrobuxine were conclusively suggested, when spontaneous contractions of rabbit jejunal preparation was relaxed along with subsequent relaxation of potassium chloride (80 mM) induced contractions...
January 18, 2017: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/28099163/adapting-smartphone-based-photoplethysmograpy-to-suboptimal-scenarios
#14
Augusto Garcia-Agundez, Tim Dutz, Stefan Goebel
Photoplethysmography (PPG) is an optical technique used to measure the heart rate (HR) and other cardiovascular variables by analyzing volume changes in the microvascular bed of tissue. At the moment, smartphone users can already measure their HR using PPG applications that use the smartphone's built-in camera. However, available applications are unreliable when artifacts are present, such as those caused by movement, finger pressure, or ambient light changes. This contribution aims to analyze the limitations of a smartphone-based PPG algorithm capable of measuring N-N intervals when such artifacts are present by comparing it to a 2-lead electrocardiography (ECG)...
January 18, 2017: Physiological Measurement
https://www.readbyqxmd.com/read/28098511/hemodynamic-effects-of-hpma-copolymer-based-doxorubicin-conjugate-a-randomized-controlled-and-comparative-spectral-study-in-conscious-rats
#15
Hoay Yan Cheah, Olivera Šarenac, Juan J Arroyo, Marko Vasić, Maja Lozić, Sofija Glumac, See Ziau Hoe, Charles Colin Thomas Hindmarch, David Murphy, Lik Voon Kiew, Hong Boon Lee, Marίa J Vicent, Lip Yong Chung, Nina Japundžić-Žigon
Conjugation of Doxorubicin (DOX) to N-(2-Hydroxypropyl) methylacrylamide copolymer (HPMA) has significantly reduced the DOX-associated cardiotoxicity. However, the reports on the impact of HPMA-DOX conjugates on the cardiovascular system such as blood pressure (BP) and heart rate (HR) were in restrained animals using tail cuff and/or other methods that lacked the resolution and sensitivity. Herein, we employed radiotelemetric-spectral-echocardiography approach to further understand the in vivo cardiovascular hemodynamics and variability post administration of free DOX and HPMA-DOX...
January 18, 2017: Nanotoxicology
https://www.readbyqxmd.com/read/28098115/a-novel-fibrillin-1-mutation-in-an-egyptian-marfan-family-a-proband-showing-nephrotic-syndrome-due-to-focal-segmental-glomerulosclerosis
#16
Mohammad Al-Haggar, Ashraf Bakr, Yahya Wahba, Paul J Coucke, Fatma El-Hussini, Mona Hafez, Riham Eid, Abdel-Rahman Eid, Amr Sarhan, Ali Shaltout, Ayman Hammad, Sohier Yahia, Ahmad El-Rifaie, Dina Abdel-Hadi
Marfan syndrome (MFS), the founding member of connective tissue disorder, is an autosomal dominant disease; it is caused by a deficiency of the microfibrillar protein fibrillin-1 (FBN1) and characterized by involvement of three main systems; skeletal, ocular, and cardiovascular. More than one thousand mutations in FBN1 gene on chromosome 15 were found to cause MFS. Nephrotic syndrome (NS) had been described in very few patients with MFS being attributed to membranoproliferative glomerulonephritis secondary to infective endocarditis...
January 2017: Saudi Journal of Kidney Diseases and Transplantation
https://www.readbyqxmd.com/read/28096141/the-role-of-the-novel-lipokine-palmitoleic-acid-in-health-and-disease
#17
REVIEW
María E Frigolet, Ruth Gutiérrez-Aguilar
The monounsaturated fatty acid palmitoleate (palmitoleic acid) is one of the most abundant fatty acids in serum and tissues, particularly adipose tissue and liver. Its endogenous production by stearoyl-CoA desaturase 1 gives rise to its cis isoform, cis-palmitoleate. Although trans-palmitoleate is also synthesized in humans, it is mainly found as an exogenous source in ruminant fat and dairy products. Recently, palmitoleate was considered to be a lipokine based on evidence demonstrating its release from adipose tissue and its metabolic effects on distant organs...
January 2017: Advances in Nutrition
https://www.readbyqxmd.com/read/28096099/high-saturated-fat-diet-increases-circulating-angiotensin-converting-enzyme-which-is-enhanced-by-the-rs4343-polymorphism-defining-persons-at-risk-of-nutrient-dependent-increases-of-blood-pressure
#18
Rita Schüler, Martin A Osterhoff, Turid Frahnow, Anne-Cathrin Seltmann, Andreas Busjahn, Stefan Kabisch, Li Xu, Alexander S Mosig, Joachim Spranger, Matthias Möhlig, Silke Hornemann, Michael Kruse, Andreas F H Pfeiffer
BACKGROUND: Angiotensin-converting enzyme (ACE) plays a major role in blood pressure regulation and cardiovascular homeostasis. Contrary to the assumption that ACE levels are stable, circulating ACE has been shown to be altered in obesity and weight loss. We sought to examine effects of a high-saturated-fat (HF) diet on ACE within the NUtriGenomic Analysis in Twins (NUGAT) study. METHODS AND RESULTS: Forty-six healthy and nonobese twin pairs initially consumed a carbohydrate-rich, low-fat diet over a period of 6 weeks to standardize for nutritional behavior prior to the study, followed by 6 weeks of HF diet under isocaloric conditions...
January 17, 2017: Journal of the American Heart Association
https://www.readbyqxmd.com/read/28096044/use-of-transesophageal-echocardiography-and-contrast-echocardiography-in-the-evaluation-of-cardiac-masses
#19
Hongmei Xia, Ling Gan, Yan Jiang, Qi Tang, Ping Zhang, Xuefeng Tang, Li Wen, Zheng Liu, Yunhua Gao
OBJECTIVES: To determine whether the combination of transesophageal echocardiography (TEE) and contrast echocardiography (CE) accurately diagnose suspected cardiac masses using large sample data. METHODS: Patients with cardiac masses undergoing surgical treatment were enrolled in this study. Routine transthoracic echocardiography (TTE) and TEE examinations were carried out, and CE examinations were carried out when needed. All patients' clinical data and imaging features were retrospectively reviewed...
January 9, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28094206/hepatocyte-growth-factor-in-physiology-and-infectious-diseases
#20
REVIEW
Ryu Imamura, Kunio Matsumoto
Hepatocyte growth factor (HGF) is a pleiotropic cytokine composed of an α-chain and a β-chain, and these chains contain four kringle domains and a serine protease-like structure, respectively. The receptor for HGF was identified as the c-met proto-oncogene product of transmembrane receptor tyrosine kinase. HGF-induced signaling through the receptor Met provokes dynamic biological responses that support morphogenesis, regeneration, and the survival of various cells and tissues, which includes hepatocytes, renal tubular cells, and neurons...
January 13, 2017: Cytokine
keyword
keyword
49031
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"