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https://www.readbyqxmd.com/read/28214892/baicalin-attenuates-cardiac-dysfunction-and-myocardial-remodeling-in-a-chronic-pressure-overload-mice-model
#1
Yanqing Zhang, Pingping Liao, Meng'en Zhu, Wei Li, Dan Hu, Siming Guan, Long Chen
BACKGROUND/AIMS: Baicalin has been shown to be effective for various animal models of cardiovascular diseases, such as pulmonary hypertension, atherosclerosis and myocardial ischaemic injury. However, whether baicalin plays a role in cardiac hypertrophy remains unknown. Here we investigated the protective effects of baicalin on cardiac hypertrophy induced by pressure overload and explored the potential mechanisms involved. METHODS: C57BL/6J-mice were treated with baicalin or vehicle following transverse aortic constriction or Sham surgery for up to 8 weeks, and at different time points, cardiac function and heart size measurement and histological and biochemical examination were performed...
February 16, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28214846/circulating-mir-30d-predicts-survival-in-patients-with-acute-heart-failure
#2
Junjie Xiao, Rongrong Gao, Yihua Bei, Qiulian Zhou, Yanli Zhou, Haifeng Zhang, Mengchao Jin, Siqi Wei, Kai Wang, Xuejuan Xu, Wenming Yao, Dongjie Xu, Fang Zhou, Jingfa Jiang, Xinli Li, Saumya Das
BACKGROUND/AIMS: Identification of novel biomarkers to identify acute heart failure (AHF) patients at high risk of mortality is an area of unmet clinical need. Recently, we reported that the baseline level of circulating miR-30d was associated with left ventricular remodeling in response to cardiac resynchronization therapy in advanced chronic heart failure patients. However, the role of circulating miR-30d as a prognostic marker of survival in patients with AHF has not been explored...
February 16, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28214773/the-usefulness-of-bone-biomarkers-for-monitoring-treatment-disease-a-comparative-study-in-osteolytic-and-osteosclerotic-bone-metastasis-models
#3
Marta Martín-Fernández, Karmele Valencia, Carolina Zandueta, Cristina Ormazábal, Susana Martínez-Canarias, Fernando Lecanda, Concepción de la Piedra
BACKGROUND: The skeleton is the most common site of colonization by metastatic cancers. Zoledronic acid (ZA) has been shown to be effective for the treatment of bone metastases regardless of whether the bone lesions are osteolytic or osteoblastic. Biochemical markers of bone turnover may be useful tools to quantify the degree of bone remodeling in the presence of bone metastases. The aim of this work was to establish the correlation between tumor dispersion (bioluminescence) and biochemical markers of bone turnover in two osteolytic and osteoblastic metastasis models in mice...
February 16, 2017: Translational Oncology
https://www.readbyqxmd.com/read/28214564/downregulation-of-gna13-erk-network-in-prefrontal-cortex-of-schizophrenia-brain-identified-by-combined-focused-and-targeted-quantitative-proteomics
#4
Mio Hirayama-Kurogi, Yohei Takizawa, Yasuto Kunii, Junya Matsumoto, Akira Wada, Mizuki Hino, Hiroyasu Akatsu, Yoshio Hashizume, Sakon Yamamoto, Takeshi Kondo, Shingo Ito, Masanori Tachikawa, Shin-Ichi Niwa, Hirooki Yabe, Tetsuya Terasaki, Mitsutoshi Setou, Sumio Ohtsuki
: Schizophrenia is a disabling mental illness associated with dysfunction of the prefrontal cortex, which affects cognition and emotion. The purpose of the present study was to identify altered molecular networks in the prefrontal cortex of schizophrenia patients by comparing protein expression levels in autopsied brains of patients and controls, using a combination of targeted and focused quantitative proteomics. We selected 125 molecules possibly related to schizophrenia for quantification by knowledge-based targeted proteomics...
February 15, 2017: Journal of Proteomics
https://www.readbyqxmd.com/read/28214490/saphenous-vein-wall-thickness-in-age-and-venous-reflux-associated-remodeling-in-adults
#5
Nicos Labropoulos, Kelli Leilani Summers, Ignacio Escotto Sanchez, Joseph Raffetto
OBJECTIVE: This prospective study was designed to determine the great saphenous vein (GSV) wall thickness in age-related and venous reflux-associated remodeling. METHODS: GSV wall thickness was measured in the thigh and calf using a duplex ultrasound 17-MHz transducer. Interobserver and intraobserver variability studies were performed. Two healthy control groups, each with 10 individuals (20 limbs), were selected on the basis of age. Group 1 had a mean age of 21 years, and group 2 had a mean age of 64 years...
March 2017: Journal of Vascular Surgery. Venous and Lymphatic Disorders
https://www.readbyqxmd.com/read/28214266/anatomical-features-of-acute-mitral-valve-repair-dysfunction-additional-value-of-three-dimensional-echocardiography
#6
REVIEW
Salomé Derkx, Virginia Nguyen, Claire Cimadevilla, Constance Verdonk, Laurent Lepage, Richard Raffoul, Patrick Nataf, Alec Vahanian, David Messika-Zeitoun
Recurrence of mitral regurgitation after mitral valve repair is correlated with unfavourable left ventricular remodelling and poor outcome. This pictorial review describes the echocardiographic features of three types of acute mitral valve repair dysfunction, and the additional value of three-dimensional echocardiography.
February 14, 2017: Archives of Cardiovascular Diseases
https://www.readbyqxmd.com/read/28214139/accuracy-of-computed-tomography-angiography-to-identify-thin-cap-fibroatheroma-detected-by-optical-coherence-tomography
#7
Nobuo Tomizawa, Kodai Yamamoto, Shinichi Inoh, Takeshi Nojo, Sunao Nakamura
BACKGROUND: Thin-cap fibroatheroma (TCFA) is assumed to cause acute coronary syndromes. OBJECTIVE: To compare the accuracy of different models for diagnosing TCFA using parameters derived by CT, validated against optical coherence tomography (OCT). METHODS: One hundred twenty-nine plaques in 106 patients were analyzed using data acquired by 64-row CT with a reconstruction thickness of 0.67 mm and an increment of 0.33 mm. TCFA was defined by OCT as a plaque with lipid content in ≥2 quadrants and the thinnest part of the fibrous cap measuring ≤65 μm...
February 9, 2017: Journal of Cardiovascular Computed Tomography
https://www.readbyqxmd.com/read/28214099/lymph-node-stroma-dynamics-and-approaches-for-their-visualization
#8
REVIEW
Rebecca Gentek, Marc Bajénoff
Lymphoid stromal cells are best known as the architectural cells of lymphoid organs. For decades, they have been considered as inert elements of the immune system but this view has changed dramatically in recent years, when it was discovered that they are endowed with critical immunoregulatory functions. It is now accepted that without them, the adaptive immune response would be compromised, if not abrogated entirely. Here, we review the function of the major lymphoid stromal cell types; the way they remodel upon inflammation; discuss the available tools to track their behavior; and introduce several methodological approaches that we believe will help improving our knowledge of these pivotal cell types...
February 14, 2017: Trends in Immunology
https://www.readbyqxmd.com/read/28214080/clinical-outcome-and-correlates-of-coronary-microvascular-obstruction-in-latecomers-after-acute-myocardial-infarction
#9
Rocco A Montone, Giampaolo Niccoli, Silvia Minelli, Francesco Fracassi, Vincenzo Vetrugno, Cristina Aurigemma, Francesco Burzotta, Italo Porto, Carlo Trani, Filippo Crea
AIMS: Microvascular obstruction (MVO) is associated with a worse prognosis in patients with ST-elevation myocardial infarction (STEMI) treated by primary percutaneous coronary intervention (PCI). However, data about incidence, clinical outcome and correlates of MVO in latecomers after STEMI are still lacking. METHODS: We prospectively enrolled consecutive patients that were latecomers after STEMI (symptoms onset >12h) undergoing PCI. We performed an angiographic analysis to assess the occurrence of MVO [defined as TIMI flow grade ≤2 or 3 with a myocardial blush grade <2]...
February 12, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28214001/comparison-of-pulmonary-venous-and-left-atrial-remodeling-in-patients-with-atrial-fibrillation-with-hypertrophic-cardiomyopathy-versus-with-hypertensive-heart-disease
#10
Kentaro Yoshida, Hideyuki Hasebe, Yasuaki Tsumagari, Hidekazu Tsuneoka, Mari Ebine, Yoshiko Uehara, Yoshihiro Seo, Kazutaka Aonuma, Noriyuki Takeyasu
Left ventricular diastolic dysfunction in hypertrophic cardiomyopathy (HC) increases susceptibility to atrial fibrillation. Although phenotypical characteristics of the hypertrophied left ventricle are clear, left atrial (LA) and pulmonary venous (PV) remodeling has rarely been investigated. This study aimed to identify differences in LA and PV remodeling between HC and hypertensive heart disease (HHD) using 3-dimensional computed tomography. Included were 33 consecutive patients with HC, 25 with HHD, and 29 without any co-morbidities who were referred for catheter ablation of atrial fibrillation...
January 25, 2017: American Journal of Cardiology
https://www.readbyqxmd.com/read/28213979/mmp-2-and-mmp-14-silencing-inhibits-vegfr2-cleavage-and-induces-the-differentiation-of-porcine-adipose-derived-mesenchymal-stem-cells-to-endothelial-cells
#11
Sami G Almalki, Yovani Llamas Valle, Devendra K Agrawal
The molecular mechanisms that control the ability of adipose-derived mesenchymal stem cells (AMSCs) to remodel three-dimensional extracellular matrix barriers during differentiation are not clearly understood. Herein, we studied the expression of matrix metalloproteinases (MMPs) during the differentiation of AMSCs to endothelial cells (ECs) in vitro. MSCs were isolated from porcine abdominal adipose tissue, and characterized by immunopositivity to CD44, CD90, CD105, and immunonegativity to CD14 and CD45. Plasticity of AMSCs was confirmed by multilineage differentiation...
February 18, 2017: Stem Cells Translational Medicine
https://www.readbyqxmd.com/read/28213973/transforming-growth-factor-%C3%AE-induces-bone-marrow-mesenchymal-stem-cell-migration-via-noncanonical-signals-and-n-cadherin
#12
Maria Jose Dubon, Jinyeong Yu, Sanghyuk Choi, Ki-Sook Park
Transforming growth factor-beta (TGF-β) induces the migration and mobilization of bone marrow-derived mesenchymal stem cells (BM-MSCs) to maintain bone homeostasis during bone remodeling and facilitate the repair of peripheral tissues. Although many studies have reported the mechanisms through which TGF-β mediates the migration of various types of cells, including cancer cells, the intrinsic cellular mechanisms underlying cellular migration and mobilization of BM-MSCs mediated by TGF-β are unclear. In this study, we showed that TGF-β activated noncanonical signaling molecules, such as Akt, extracellular signal-regulated kinase 1/2 (ERK1/2), focal adhesion kinase (FAK), and p38, via TGF-β type I receptor in human BM-MSCs and murine BM-MSC-like ST2 cells...
February 18, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/28213949/peri-implant-bone-remodeling-at-the-interface-of-three-different-implant-types-a-histomorphometric-study-in-mini-pigs
#13
Wenjuan Zhou, Sonja Kuderer, Zhonghao Liu, Christian Ulm, Xiaohui Rausch-Fan, Stefan Tangl
OBJECTIVES: The aim of this study was to perform a histomorphometric evaluation of the healing characteristics and jawbone remodeling processes in the peri-implant bone tissue of three commonly used implant surfaces, during the early weeks of osseointegration. MATERIAL AND METHODS: Dental implants with three different surfaces (anodically modified, hydroxyapatite (HA)-coated and machined) were inserted into the mandibular side-tooth region of twelve adult mini-pigs...
February 18, 2017: Clinical Oral Implants Research
https://www.readbyqxmd.com/read/28213866/5-aminosalicylic-acid-attenuates-monocrotaline-induced-pulmonary-arterial-hypertension-in-rats-by-increasing-the-expression-of-nur77
#14
Ling-Yue Sun, Zong-Ye Cai, Jun Pu, Jian Li, Jie-Yan Shen, Cheng-de Yang, Ben He
The aim of this study is to investigate the effect of 5-aminosalicylic acid (5-ASA) on monocrotaline (MCT)-induced pulmonary arterial hypertension (PAH) in rats and its molecular mechanism. Sixty male Sprague-Dawley rats (250-300 g) were evenly randomized into six groups: control group; PAH group induced by MCT intraperitoneal injection (50 mg/kg) on day 1; and four PAH groups treated for 30 days from day 2 with 5-ASA at 50 (5-ASA-50 group), 100 (5-ASA-100 group), 150 (5-ASA-150 group), and 200 mg/kg/day (5-ASA-200 group), respectively...
February 17, 2017: Inflammation
https://www.readbyqxmd.com/read/28213819/conditional-knockout-of-activin-like-kinase-1-alk-1-leads-to-heart-failure-without-maladaptive-remodeling
#15
Kevin J Morine, Xiaoying Qiao, Vikram Paruchuri, Mark J Aronovitz, Emily E Mackey, Lyanne Buiten, Jonathan Levine, Keshan Ughreja, Prerna Nepali, Robert M Blanton, Richard H Karas, S Paul Oh, Navin K Kapur
Activin like kinase-1 (AlK-1) mediates signaling via the transforming growth factor beta (TGFβ) family of ligands. AlK-1 activity promotes endothelial proliferation and migration. Reduced AlK-1 activity is associated with arteriovenous malformations. No studies have examined the effect of global AlK-1 deletion on indices of cardiac remodeling. We hypothesized that reduced levels of AlK-1 promote maladaptive cardiac remodeling. To test this hypothesis, we employed AlK-1 conditional knockout mice (cKO) harboring the ROSA26-CreER knock-in allele, whereby a single dose of intraperitoneal tamoxifen triggered ubiquitous Cre recombinase-mediated excision of floxed AlK-1 alleles...
February 17, 2017: Heart and Vessels
https://www.readbyqxmd.com/read/28213686/the-iswi-remodeler-in-plants-protein-complexes-biochemical-functions-and-developmental-roles
#16
REVIEW
Dongjie Li, Jie Liu, Wu Liu, Guang Li, Zhongnan Yang, Peng Qin, Lin Xu
Imitation Switch (ISWI) is a member of the ATP-dependent chromatin remodeling factor family, whose members move or restructure nucleosomes using energy derived from ATP hydrolysis. ISWI proteins are conserved in eukaryotes and usually form complexes with DDT (DNA-binding homeobox and different transcription factors)-domain proteins. Here, we review recent research on ISWI in the model plant Arabidopsis thaliana (AtISWI). AtISWI forms complexes with AtDDT-domain proteins, many of which have domain structures that differ from those of DDT-domain proteins in yeast and animals...
February 17, 2017: Chromosoma
https://www.readbyqxmd.com/read/28213473/central-role-of-t-helper-17-cells-in-chronic-hypoxia-induced-pulmonary-hypertension
#17
Levi D Maston, David T Jones, Wieslawa Giermakowska, Tamara A Howard, Judy L Cannon, Wei Wang, Yongyi Wei, Weimin Xuan, Thomas C Resta, Laura V Gonzalez Bosc
RATIONALE: Inflammation is a prominent pathologic feature in pulmonary arterial hypertension as demonstrated by pulmonary vascular infiltration of inflammatory cells, including T and B lymphocytes. However, the contribution of the adaptive immune system is not well characterized in pulmonary hypertension caused by chronic hypoxia. CD4(+) T cells are required for initiating and maintaining inflammation, suggesting these cells could play an important role in the pathogenesis of hypoxic pulmonary hypertension...
February 17, 2017: American Journal of Physiology. Lung Cellular and Molecular Physiology
https://www.readbyqxmd.com/read/28213288/inhibition-of-estrogen-related-receptor-%C3%AE-attenuates-vascular-smooth-muscle-cell-proliferation-and-migration-by-regulating-rhoa-p27-kip1-and-%C3%AE-catenin-wnt4-signaling-pathway
#18
Qunyi Li, Lei Zhu, Liudi Zhang, Haifei Chen, Yingfeng Zhu, Yongli Du, Wanxian Zhong, Mingkang Zhong, Xiaojin Shi
RhoA/p27(Kip1) and β-Catenin/Wnt4 signaling processes play central roles in proliferation and migration in vascular smooth muscle cells (VSMCs). ERRα, a member of orphan nuclear receptors, is a potent prognostic factor in breast, ovarian, colon and other types of tumors. However, biological significance of ERRα in VSMCs as well as the molecular mechanisms remains largely unknown. Therefore, the present study was designed to investigate whether ERRα is involved in the proliferation and migration of VSMCs in vitro and neointimal formation in vivo...
February 14, 2017: European Journal of Pharmacology
https://www.readbyqxmd.com/read/28213270/myocardial-leptin-transcription-in-feline-hypertrophic-cardiomyopathy
#19
Sonja Fonfara, Sarah Kitz, Udo Hetzel, Anja Kipar
Leptin is an adipokine, which is in humans with cardiac disease suspected to be involved in myocardial remodeling and thrombus formation. In cats, however, it is not known whether leptin plays a role in cardiac disease, i.e. hypertrophic cardiomyopathy (HCM) and the presence of an atrial thrombus (AT). The objective of the study was therefore to establish whether leptin is transcribed in the feline myocardium and to compare myocardial leptin mRNA concentrations in cats with HCM with and without AT, and in cats without cardiac diseases...
February 13, 2017: Research in Veterinary Science
https://www.readbyqxmd.com/read/28213094/aspirin-triggered-resolvin-d1-modified-materials-promote-the-accumulation-of-pro-regenerative-immune-cell-subsets-and-enhance-vascular-remodeling
#20
Mary Caitlin P Sok, Maxianne C Tria, Claire E Olingy, Cheryl L San Emeterio, Edward A Botchwey
: Many goals in tissue engineering rely on modulating cellular localization and polarization of cell signaling, including the inhibition of inflammatory infiltrate, facilitation of inflammatory cell egress, and clearance of apoptotic cells. Omega-3 polyunsaturated fatty acid-derived resolvins are gaining increasing recognition for their essential roles in inhibition of neutrophil invasion into inflamed tissue and promotion of macrophage phagocytosis of cellular debris as well as their egress to the lymphatics...
February 14, 2017: Acta Biomaterialia
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