keyword
MENU ▼
Read by QxMD icon Read
search

endothelial heterogeneity

keyword
https://www.readbyqxmd.com/read/29047094/endothelial-cell-reactive-oxygen-species-and-ca-2-signaling-in-pulmonary-hypertension
#1
Karthik Suresh, Larissa A Shimoda
Pulmonary hypertension (PH) refers to a disorder characterized by elevated pulmonary arterial pressure, leading to right ventricular overload and eventually right ventricular failure, which results in high morbidity and mortality. PH is associated with heterogeneous etiologies and distinct molecular mechanisms, including abnormal migration and proliferation of endothelial and smooth muscle cells. Although the exact details are not fully elucidated, reactive oxygen species (ROS) have been shown to play a key role in promoting abnormal function in pulmonary arterial smooth muscle and endothelial cells in PH...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/29044469/co-differentiation-of-human-pluripotent-stem-cells-derived-cardiomyocytes-and-endothelial-cells-from-cardiac-mesoderm-provides-a-three-dimensional-model-of-cardiac-microtissue
#2
Elisa Giacomelli, Milena Bellin, Valeria V Orlova, Christine L Mummery
The formation of cardiac mesodermal subtypes is highly regulated in time and space during heart development. In vitro models based on human pluripotent stem cells (hPS cells) provide opportunities to study mechanisms underlying fate choices governing lineage specification from common cardiovascular progenitors in human embryos. The generation of cardiac endothelial cells in particular allows the creation of complex models of cardiovascular disorders in which either cardiomyocytes or endothelial cells are affected...
October 18, 2017: Current Protocols in Human Genetics
https://www.readbyqxmd.com/read/29044056/association-of-polymorphisms-in-the-intron-of-tcf4-gene-to-late-onset-fuchs-endothelial-corneal-dystrophy-an-indian-cohort-study
#3
Bhavna S Rao, Arokiasamy Tharigopala, Sudhir R Rachapalli, Rama Rajagopal, Nagasamy Soumittra
PURPOSE: Fuchs endothelial corneal dystrophy (FECD) is a progressive degenerative disease of the corneal endothelium. It is genetically heterogeneous and follows either an autosomal dominant or sporadic pattern of inheritance. Here, we have explored the association of four previously reported intronic single nucleotide polymorphisms and intronic CTG repeat expansions in TCF4 gene to FECD in an Indian cohort. METHODS: The cohort consisting of 52 sporadic late-onset cases, 5 early-onset cases, and 148 controls was taken for the study...
October 2017: Indian Journal of Ophthalmology
https://www.readbyqxmd.com/read/29043853/microvascular-network-and-its-endothelial-cells-in-the-human-iris
#4
Hongfang Yang, Paula K Yu, Stephen J Cringle, Xinghuai Sun, Dao-Yi Yu
PURPOSE: The iris allows effective delivery of nutrients into the aqueous humor supplying the surrounded avascular tissues. However, possible underlying mechanisms of the iris vasculature have not been well established. This study aims to quantitatively assess the human iris vascular network, endothelial cell morphometries, and characterize endothelial junctions to better understand the properties of the iris vasculature. MATERIALS AND METHODS: The irises from human donor eyes were dissected and short fixed before float staining for VE-cadherin and claudin-5, f-actin and nuclei and flat-mounted for confocal imaging...
October 18, 2017: Current Eye Research
https://www.readbyqxmd.com/read/29025216/assisted-salvage-of-ischemic-fasciocutaneous-flap-using-adipose-derived-mesenchymal-stem-cells-in-situ-revascularization
#5
Michael H Carstens, Mauricio Mendieta, Cecilia Pérez, Esperanza Villareal, Rodolfo Garcia
Adipose-derived mesenchymal stem cells (ASCs) have been shown to produce vascular endothelial growth factor (VEGF) and can increase perfusion in patients with critical limb ischemia. We will show that this concept can be applied to augment blood flow in zones of flap ischemia. We presented a case study of a 26-year-old man with a complex hand injury covered by a reverse radial perforator fasciocutaneous flap, which developed ischemic necrosis and was treated by debridement, transplantation of ASCs to enhance vascular support, and saline dressings...
July 1, 2017: Aesthetic Surgery Journal
https://www.readbyqxmd.com/read/29021364/lymphatic-endothelial-cell-plasticity-in-development-and-disease
#6
REVIEW
Wanshu Ma, Guillermo Oliver
The lymphatic vasculature is crucial for maintaining tissue-fluid homeostasis, providing immune surveillance and mediating lipid absorption. The lymphatic vasculature is tightly associated with the blood vasculature, although it exhibits distinct morphological and functional features. Endothelial cells (ECs) lineage fate specification is determined during embryonic development; however, accumulating evidence suggests that differentiated ECs exhibit remarkable heterogeneity and plasticity. In this review, we provide an overview of the molecular mechanisms promoting lymphatic cell fate specification in the mammalian embryo...
November 2017: Physiology
https://www.readbyqxmd.com/read/29021323/pathologic-stimulus-determines-lineage-commitment-of-cardiac-c-kit-cells
#7
Zhongming Chen, Wuqiang Zhu, Ingrid Bender, Wuming Gong, Il-Youp Kwak, Amritha Yellamilli, Thomas J Hodges, Natsumi Nemoto, Jianyi Zhang, Daniel J Garry, Jop H van Berlo
Background -Although cardiac c-kit(+) cells are being tested in clinical trials, the circumstances that determine lineage differentiation of c-kit(+) cells in vivo are unknown. Recent findings suggest endogenous cardiac c-kit(+) cells rarely contribute cardiomyocytes to the adult heart. We assessed whether various pathological stimuli differentially affect the eventual cell fates of c-kit(+) cells. Methods -We employed single cell sequencing and genetic lineage tracing of c-kit(+) cells to determine whether various pathologic stimuli would result in different fates of c-kit(+) cells...
October 11, 2017: Circulation
https://www.readbyqxmd.com/read/28990043/%C3%AE-he-genetics-of-juvenile-idiopathic-arthritis-searching-for-new-susceptibility-loci
#8
Maria I Zervou, Despoina G Dimopoulou, Elias Eliopoulos, Maria Trachana, Polyxeni Pratsidou-Gkertsi, Athena Andreou, Prodromos Sidiropoulos, Demetrios A Spandidos, Alexandros Garyfallos, George N Goulielmos
Juvenile idiopathic arthritis (JIA) is an autoimmune disease that is characterized by persistent chronic arthritis and affected by genetic and environmental factors. Different genetic variations have been reported as risk factors for JIA. However, given that many results could not be replicated in individuals of different ancestral origin, it was assumed that heterogeneous genetic factors are involved in this disease. In the present study, we analyzed three single nucleotide polymorphisms (SNPs), namely PTPRC (rs10919563), TYK2 (rs34536443) and PRKCQ (rs4750316), which were found to be associated with JIA in previous studies...
October 5, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28987708/von-willebrand-disease-mutation-spectrum-and-associated-mutation-mechanisms
#9
REVIEW
Annika de Jong, Jeroen Eikenboom
Von Willebrand disease (VWD) is a bleeding disorder that is mainly caused by mutations in the multimeric protein von Willebrand factor (VWF). These mutations may lead to deficiencies in plasma VWF or dysfunctional VWF. VWF is a heterogeneous protein and over the past three decades, hundreds of VWF mutations have been identified. In this review we have organized all reported mutations, spanning a timeline from the late eighties until early 2017. This resulted in an overview of 750 unique mutations that are divided over the VWD types 1, 2A, 2B, 2M, 2N and 3...
September 23, 2017: Thrombosis Research
https://www.readbyqxmd.com/read/28984647/functional-genomics-of-stromal-cells-in-chronic-inflammatory-diseases
#10
Kamil Slowikowski, Kevin Wei, Michael B Brenner, Soumya Raychaudhuri
PURPOSE OF REVIEW: Stroma is a broad term referring to the connective tissue matrix in which other cells reside. It is composed of diverse cell types with functions such as extracellular matrix maintenance, blood and lymph vessel development, and effector cell recruitment. The tissue microenvironment is determined by the molecular characteristics and relative abundances of different stromal cells such as fibroblasts, endothelial cells, pericytes, and mesenchymal precursor cells. Stromal cell heterogeneity is explained by embryonic developmental lineage, stages of differentiation to other cell types, and activation states...
October 4, 2017: Current Opinion in Rheumatology
https://www.readbyqxmd.com/read/28984178/effects-of-donor-age-on-human-adipose-derived-adherent-stromal-cells-under-oxidative-stress-conditions
#11
Sang Woo Kim, Jung-Won Choi, Chang Youn Lee, Jiyun Lee, Sunhye Shin, Soyeon Lim, Seahyoung Lee, Il-Kwon Kim, Hoon-Bum Lee, Ki-Chul Hwang
Objective Adipose-derived stromal vascular fractions (SVFs) are heterogeneous complex populations of cells with therapeutic efficacy for tissue generation and vascular stabilization. SVFs have cardiomyogenic potential, and many researchers have examined the possibility of SVF transplantation for heart disease. In cell-based therapies, donor age affects the regenerative capability, cell yield, and differentiation potential of adult tissues; however, opposing or controversial results have been found in humans...
January 1, 2017: Journal of International Medical Research
https://www.readbyqxmd.com/read/28982599/muscle-derived-extracellular-superoxide-dismutase-inhibits-endothelial-activation-and-protects-against-multiple-organ-dysfunction-syndrome-in-mice
#12
Jarrod A Call, Jean Donet, Kyle S Martin, Ashish K Sharma, Xiaobin Chen, Jiuzhi Zhang, Jie Cai, Carolina A Galarreta, Mitsuharu Okutsu, Zhongmin Du, Vitor A Lira, Mei Zhang, Borna Mehrad, Brian H Annex, Alexander L Klibanov, Russell P Bowler, Victor E Laubach, Shayn M Peirce, Zhen Yan
Multiple organ dysfunction syndrome (MODS) is a detrimental clinical complication in critically ill patients with high mortality. Emerging evidence suggests that oxidative stress and endothelial activation (induced expression of adhesion molecules) of vital organ vasculatures are key, early steps in the pathogenesis. We aimed to ascertain the role and mechanism(s) of enhanced extracellular superoxide dismutase (EcSOD) expression in skeletal muscle in protection against MODS induced by endotoxemia. We showed that EcSOD overexpressed in skeletal muscle-specific transgenic mice (TG) redistributes to other peripheral organs through the circulation and enriches at the endothelium of the vasculatures...
October 2, 2017: Free Radical Biology & Medicine
https://www.readbyqxmd.com/read/28979041/endothelial-glycocalyx-and-cardiopulmonary-bypass
#13
REVIEW
Gerard J Myers, Julie Wegner
On the outer surface of a human cell there is a dense layer of complex carbohydrates called glycocalyx, also referred to as glycans or the sugar coating on the cell surface, which is composed of a complex array of oligosaccharide and polysaccharide glucose chains that are covalently bonded to proteoglycans and lipids bound to the cell membrane surface. Studies of an intact endothelial glycocalyx layer (EGL) have revealed a number of critical functions that relate the importance of this protective layer to vascular integrity and permeability...
September 2017: Journal of Extra-corporeal Technology
https://www.readbyqxmd.com/read/28978793/diverse-cellular-architecture-of-atherosclerotic-plaque-derives-from-clonal-expansion-of-a-few-medial-smcs
#14
Kevin Jacobsen, Marie Bek Lund, Jeong Shim, Stine Gunnersen, Ernst-Martin Füchtbauer, Mads Kjolby, Laura Carramolino, Jacob Fog Bentzon
Fibrous cap smooth muscle cells (SMCs) protect atherosclerotic lesions from rupturing and causing thrombosis, while other plaque SMCs may have detrimental roles in plaque development. To gain insight into recruitment of different plaque SMCs, we mapped their clonal architecture in aggregation chimeras of eGFP+Apoe-/- and Apoe-/- mouse embryos and in mice with a mosaic expression of fluorescent proteins in medial SMCs that were rendered atherosclerotic by PCSK9-induced hypercholesterolemia. Fibrous caps in aggregation chimeras were found constructed from large, endothelial-aligned layers of either eGFP+ or nonfluorescent SMCs, indicating substantial clonal expansion of a few cells...
October 5, 2017: JCI Insight
https://www.readbyqxmd.com/read/28969131/histomorphologic-spectrum-in-hyaline-vascular-variant-of-castleman-disease
#15
Chaithra Gowthuvalli Venkataramana, Hema Kini, Debarshi Saha, Sharada Rai, Deepa Sowkur Anandarama Adiga, Ranjitha Rao, Cheryl Sarah Philipose
INTRODUCTION: Castleman Disease (CD) is a rare lymphopro-liferative disorder with heterogenous clinical and pathological features. It is a rare disease with mention in the rare disease data of the orphanet. It can present as unicentric or multicentric disease. Hyaline vascular variant and plasma cell variant are the two pathological subtypes. Hyaline vascular variant accounts for nearly 80% to 90% of unicentric cases. Hyaline vascular subtype variant has follicular and stroma rich subtype...
August 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28944203/systematic-review-and-meta-analysis-comparing-modified-cross-linking-and-standard-cross-linking-for-progressive-keratoconus
#16
Yang Liu, Yi Liu, Ying-Nan Zhang, Ai-Peng Li, Jing Zhang, Qing-Feng Liang, Ying Jie, Zhi-Qiang Pan
AIM: To compare the effectiveness and safety between modified cross-linking (MC) and standard cross-linking (SC) in mild or moderate progressive keratoconus. METHODS: Eligible studies were retrieved from four electronic databases, including CENTRAL, Clinical Trials gov, PupMed and OVID MEDLINE. We set post-surgical maximum K value (Kmax) as the primary outcome. In addition, uncorrected and corrected distant visual acuity (UDVA and UDVA), spherical equivalent (SE), endothelial cell density (ECD), central cornea thickness (CCT) and depth of demarcation line (DDL) were Meta-analyzed as secondary outcomes...
2017: International Journal of Ophthalmology
https://www.readbyqxmd.com/read/28933297/circulating-stem-progenitor-cells-as-prognostic-biomarkers-in-macro-and-microvascular-disease-a-narrative-review-of-prospective-observational-studies
#17
Mauro Rigato, Gian Paolo Fadini
BACKGROUND: Circulating progenitor cells (CPCs) and endothelial progenitor cells (EPCs) are immature cells involved in vascular repair and related to many aspects of macro and microvascular disease. OBJECTIVE: We aimed to review studies reporting the prognostic role of CPCs/EPCs measurement on development of cardiovascular disease and microangiopathy. METHODS AND RESULTS: We reviewed the English language literature for prospective observational studies reporting the future development of cardiovascular disease or microangiopathy in patients having a baseline determination of CPCs/EPCs...
September 20, 2017: Current Medicinal Chemistry
https://www.readbyqxmd.com/read/28931624/the-first-wave-of-t-lymphopoiesis-in-zebrafish-arises-from-aorta-endothelium-independent-of-hematopoietic-stem-cells
#18
Ye Tian, Jin Xu, Shachuan Feng, Sicong He, Shizheng Zhao, Lu Zhu, Wan Jin, Yimei Dai, Lingfei Luo, Jianan Y Qu, Zilong Wen
T lymphocytes are key cellular components of the adaptive immune system and play a central role in cell-mediated immunity in vertebrates. Despite their heterogeneities, it is believed that all different types of T lymphocytes are generated exclusively via the differentiation of hematopoietic stem cells (HSCs). Using temporal-spatial resolved fate-mapping analysis and time-lapse imaging, here we show that the ventral endothelium in the zebrafish aorta-gonad-mesonephros and posterior blood island, the hematopoietic tissues previously known to generate HSCs and erythromyeloid progenitors, respectively, gives rise to a transient wave of T lymphopoiesis independent of HSCs...
September 20, 2017: Journal of Experimental Medicine
https://www.readbyqxmd.com/read/28906481/insights-into-the-diagnostic-potential-of-extracellular-vesicles-and-their-mirna-signature-from-liquid-biopsy-as-early-biomarkers-of-diabetic-micro-macrovascular-complications
#19
REVIEW
Valeria La Marca, Alessandra Fierabracci
Extracellular vesicles (EVs) represent a heterogeneous population of small vesicles, consisting of a phospholipidic bilayer surrounding a soluble interior cargo. Almost all cell types release EVs, thus they are naturally present in all body fluids. Among the several potential applications, EVs could be used as drug delivery vehicles in disease treatment, in immune therapy because of their immunomodulatory properties and in regenerative medicine. In addition to general markers, EVs are characterized by the presence of specific biomarkers (proteins and miRNAs) that allow the identification of their cell or tissue origin...
September 14, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28885470/poor-microcirculatory-flow-dynamics-are-associated-with-endothelial-cell-damage-and-glycocalyx-shedding-following-traumatic-hemorrhagic-shock
#20
David N Naumann, Jon Hazeldine, Mark J Midwinter, Sam D Hutchings, Paul Harrison
BACKGROUND: Endothelial cell damage and glycocalyx shedding following trauma can increase the risk of inflammation, coagulopathy, vascular permeability and death. Bedside sublingual video-microscopy may detect worse flow and perfusion associated with this endotheliopathy. We compared markers of endotheliopathy with physical flow dynamics following traumatic hemorrhagic shock (THS). METHODS: Sublingual incident dark field video-microscopy was performed at three time-points following injury (<10h; 10-30h; and 30-50h)...
September 5, 2017: Journal of Trauma and Acute Care Surgery
keyword
keyword
72602
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"