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https://www.readbyqxmd.com/read/27923233/efficacy-of-adipodren%C3%A2-in-reducing-interleukin-1-induced-lymphatic-endothelial-hyperpermeability
#1
Valerio Ciccone, Martina Monti, Giulia Antonini, Luisa Mattoli, Michela Burico, Francesca Marini, Anna Maidecchi, Lucia Morbidelli
Lymphatic leakage can be seen as a detrimental phenomenon associated with fluid retention and deposition as well as gain of weight. Moreover, lymphatic dysfunction is associated with an inflammatory environment and can be a substrate for other health conditions. A number of treatments can ameliorate lymphatic vasculature: natural substances have been used as treatment options particularly suitable for their consolidated effectiveness and safety profile. Here we report the protective effect of AdipoDren®, an association of a series of plant-derived natural complexes, on lymphatic endothelium permeability promoted by interleukin-1 beta (IL-1β) and the associated molecular mechanisms...
December 7, 2016: Journal of Vascular Research
https://www.readbyqxmd.com/read/27923220/differential-regulation-of-bmal1-clock-and-endothelial-signaling-in-the-aortic-arch-and-ligated-common-carotid-artery
#2
Xia Shang, Paramita Pati, Ciprian B Anea, David J R Fulton, R Daniel Rudic
The circadian clock is rhythmically expressed in blood vessels, but the interaction between the circadian clock and disturbed blood flow remains unclear. We examined the relationships between BMAL1 and CLOCK and 2 regulators of endothelial function, AKT1 and endothelial nitric oxide synthase (eNOS), in vascular regions of altered blood flow. We found that the aortic arch from WT mice exhibited reduced sensitivity to acetylcholine (Ach)-mediated relaxation relative to the thoracic aorta. In Clock-mutant (mut) mice the aorta exhibited a reduced sensitivity to Ach...
December 7, 2016: Journal of Vascular Research
https://www.readbyqxmd.com/read/27922176/dipeptidyl-peptidase-4-inhibitor-sitagliptin-reduces-inflammation-fibrosis-and-preserves-diastolic-function-in-a-rat-model-of-heart-failure-with-preserved-ejection-fraction
#3
Grazia Esposito, Donato Cappetta, Rosa Russo, Alessia Rivellino, Loreta Pia Ciuffreda, Fiorentina Roviezzo, Elena Piegari, L Liberato Berrino, Francesco Rossi, Antonella De Angelis, Konrad Urbanek
BACKGROUND AND PURPOSE: Heart failure with preserved ejection fraction (HFpEF) is a systemic syndrome driven by co-morbidities and its pathophysiology is poorly understood. Several studies suggesting that dipeptidyl peptidase 4 (DPP4) might be involved in the pathophysiology of heart failure prompted experimental and clinical investigations of DPP4 inhibitors on cardiovascular system. The aim of our study was to determine whether DPP4 inhibitor sitagliptin (SITA) affects the progression of HFpEF independently from the effects on glycaemia...
December 6, 2016: British Journal of Pharmacology
https://www.readbyqxmd.com/read/27922168/update-of-the-swiss-guidelines-on-post-treatment-lyme-disease-syndrome
#4
Johannes Nemeth, Enos Bernasconi, Ulrich Heininger, Mohamed Abbas, David Nadal, Carol Strahm, Stefan Erb, Stefan Zimmerli, Hansjakob Furrer, Julie Delaloye, Thierry Kuntzer, Ekkehard Altpeter, Mathias Sturzenegger, Rainer Weber, For The Swiss Society For Infectious Diseases And The Swiss Society For Neurology
Lyme borreliosis is caused by Borrelia burgdorferi sensu lato infection, which responds well to antibiotic therapy in the overwhelming majority of cases. However, despite adequate antibiotic treatment some patients report persisting symptoms which are commonly summarised as post-treatment Lyme disease syndrome (PTLDS). In 2005, the Swiss Society of Infectious Diseases published a case definition for PTLDS. We aimed to review the scientific literature with a special emphasis on the last 10 years, questioning whether the definitions from 2005 are still valid in the light of current knowledge...
2016: Swiss Medical Weekly
https://www.readbyqxmd.com/read/27922078/malat1-and-hotair-long-non-coding-rnas-play-opposite-role-in-estrogen-mediated-transcriptional-regulation-in-prostate-cancer-cells
#5
Aurora Aiello, Lorenza Bacci, Agnese Re, Cristian Ripoli, Francesco Pierconti, Francesco Pinto, Riccardo Masetti, Claudio Grassi, Carlo Gaetano, Pier Francesco Bassi, Alfredo Pontecorvi, Simona Nanni, Antonella Farsetti
In the complex network of nuclear hormone receptors, the long non-coding RNAs (lncRNAs) are emerging as critical determinants of hormone action. Here we investigated the involvement of selected cancer-associated lncRNAs in Estrogen Receptor (ER) signaling. Prior studies by Chromatin Immunoprecipitation (ChIP) Sequencing showed that in prostate cancer cells ERs form a complex with the endothelial nitric oxide synthase (eNOS) and that in turn these complexes associate with chromatin in an estrogen-dependent fashion...
December 6, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27920727/genetic-targeting-of-arginase-ii-in-mouse-prevents-renal-oxidative-stress-and-inflammation-in-diet-induced-obesity
#6
Ji Huang, Angana Rajapakse, Yuyan Xiong, Jean-Pierre Montani, François Verrey, Xiu-Fen Ming, Zhihong Yang
Obesity is associated with development and progression of chronic kidney disease (CKD). Recent evidence demonstrates that enhanced levels of the L-arginine:ureahydrolase, including the two isoenzymes arginase-I (Arg-I) and arginase-II (Arg-II) in vascular endothelial cells promote uncoupling of endothelial nitric oxide synthase (eNOS), leading to increased superoxide radical anion and decreased NO production thereby endothelial dysfunction. Arg-II but not Arg-I is abundantly expressed in kidney and the role of Arg-II in CKD is uncertain and controversial...
2016: Frontiers in Physiology
https://www.readbyqxmd.com/read/27920123/selective-enhancement-of-insulin-sensitivity-in-the-endothelium-in-vivo-reveals-a-novel-proatherosclerotic-signalling-loop
#7
Hema Viswambharan, Nadira Y Yuldasheva, Anshuman Sengupta, Helen Imrie, Matthew C Gage, Natalie J Haywood, Andrew M Walker, Anna Skromna, Natalia Makova, Stacey L Galloway, Pooja Shah, Piruthivi Sukumar, Karen E Porter, Peter J Grant, Ajay M Shah, Celio X Santos, Jing Li, David J Beech, Stephen Wheatcroft, Richard M Cubbon, Mark T Kearney
RATIONALE: In the endothelium, insulin stimulates endothelial nitric oxide synthase (eNOS) to generate the anti-atherosclerotic signalling radical NO. Insulin resistant type 2 diabetes is associated with reduced NO availability and accelerated atherosclerosis. The effect of enhancing endothelial insulin sensitivity on NO availability is unclear. OBJECTIVE: To answer this question we generated a mouse with endothelial cell (EC)-specific over-expression of the human insulin receptor (hIRECO) using the Tie2 promoter-enhancer...
December 5, 2016: Circulation Research
https://www.readbyqxmd.com/read/27918956/the-injury-of-fine-particulate-matter-from-cooking-oil-fumes-on-umbilical-cord-blood-vessels-in-vitro
#8
Lijuan Hou, Jian Zhang, Chao Zhang, Yachun Xu, Xiaoxia Zhu, Cijiang Yao, Ying Liu, Tao Li, Jiyu Cao
Cooking oil fumes (COFs) derived PM2.5 is the major source of indoor air pollution in Asia. For this, a pregnant rat model within different doses of cooking oil fumes (COFs) derived PM2.5 was established in pregnancy in our research. Our previous studies have showed that exposure to COFs-derived PM2.5 was related to adverse pregnancy outcomes. However, the mechanisms of signaling pathways remain unknown. Therefore, this study aimed to investigate the underlying mechanisms induced by COFs-derived PM2.5 injury on umbilical cord blood vessels (UCs) in vitro...
November 21, 2016: Environmental Toxicology and Pharmacology
https://www.readbyqxmd.com/read/27918936/promoting-angiogenesis-with-mesoporous-microcarriers-through-a-synergistic-action-of-delivered-silicon-ion-and-vegf
#9
Khandmaa Dashnyam, Guang-Zhen Jin, Joong-Hyun Kim, Roman Perez, Jun-Hyeog Jang, Hae-Won Kim
Angiogenic capacity of biomaterials is a key asset to drive vascular ingrowth during tissue repair and regeneration. Here we design a unique angiogenic microcarrier based on sol-gel derived mesoporous silica. The microspheres offer a potential angiogenic stimulator, Si ion, 'intrinsically' within the chemical structure. Furthermore, the highly mesoporous nature allows the loading and release of angiogenic growth factor 'extrinsically'. The Si ion is released from the microcarriers at therapeutic ranges (over a few ppm per day), which indeed up-regulates the expression of hypoxia inducing factor 1α (HIF1α) and stabilizes it by blocking HIF-prolyl hydroxylase 2 (PHD2) in HUVECs...
November 28, 2016: Biomaterials
https://www.readbyqxmd.com/read/27916690/acyl-homoserine-lactone-changes-the-abundance-of-proteins-and-the-levels-of-organic-acids-associated-with-stationary-phase-in-salmonella-enteritidis
#10
Felipe Alves de Almeida, Natan de Jesus Pimentel Filho, Lanna Clícia Carrijo, Cláudia Braga Pereira Bento, Maria Cristina Baracat-Pereira, Uelinton Manoel Pinto, Leandro Licursi de Oliveira, Maria Cristina Dantas Vanetti
Quorum sensing (QS) is cell-cell communication mechanism mediated by signaling molecules known as autoinducers (AIs) that lead to differential gene expression. Salmonella is unable to synthesize the AI-1 acyl homoserine lactone (AHL), but is able to recognize AHLs produced by other microorganisms through SdiA protein. Our study aimed to evaluate the influence of AI-1 on the abundance of proteins and the levels of organic acids of Salmonella Enteritidis. The presence of N-dodecyl-homoserine lactone (C12-HSL) did not interfere on the growth or the total amount of extracted proteins of Salmonella...
December 1, 2016: Microbial Pathogenesis
https://www.readbyqxmd.com/read/27916558/role-of-carvacrol-in-cardioprotection-against-myocardial-ischemia-reperfusion-injury-in-rats-through-activation-of-mapk-erk-and-akt-enos-signaling-pathways
#11
Yunping Chen, Lina Ba, Wei Huang, Yan Liu, Hao Pan, E Mingyao, Pilong Shi, Ye Wang, Shuzhi Li, Hanping Qi, Hongli Sun, Yonggang Cao
Carvacrol (CAR) is a compound isolated from some essential oils, many studies have demonstrated its therapeutic potential on different diseases. This study aims to evaluate the protective effect of CAR against myocardial ischemia/reperfusion (I/R) injury in rats. Male adult rats underwent ligation of the left anterior descending coronary artery (LAD) in I/R models. Rats were treated with CAR after LAD. The levels of I/R- induced infarct size, cardiomyocyte apoptosis and cardiac functional impairment were examined...
December 1, 2016: European Journal of Pharmacology
https://www.readbyqxmd.com/read/27915034/atheroprotective-role-of-caveolin-1-and-enos-in-an-innovative-transplantation-model-is-mainly-mediated-by-local-effects
#12
Johannes Mierke, Marian Christoph, Christian Pfluecke, Stefanie Jellinghaus, Carsten Wunderlich, Ruth H Strasser, Karim Ibrahim, David M Poitz
Endothelial dysfunction is crucial in the initiation of atherosclerosis, which is associated with a lack of nitric oxide. The endothelial NO synthase (eNOS) is responsible for constitutive synthesis of NO and inhibited by caveolin-1 (Cav1). In the current study, we examined the influence on intima formation through single and combined deletion of eNOS and Cav1 with a focus on differentiation of local and systemic effects. A sex-mismatch transplantation of denudated aortae from female C57BL/6n (WT), Cav1(-/-), eNOS(-/-) and Cav1(-/-)/eNOS(-/-) (C/e(--/--)) mice in common carotid artery of male WT mice was performed...
November 30, 2016: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/27914527/prophylactic-effects-of-alkaloids-from-ba-lotus-seeds-on-l-nna-induced-hypertension-in-mice
#13
Peng Sun, Kai Zhu, Cun Wang, Wei-Wei Liu, De-Guang Peng, Xin Zhao
Alkaloids from Ba lotus seeds (ABLS) are a kind of important functional compounds in lotus seeds. The present study was designed to determine its hypertension prophylactic effects in the L-NNA-induced mouse hypertension model. The mice were treated with ABLS, the serum and tissues levels of NO, MDA, ET-1, VEGF, and CGRP were determined using the experimental kits, the mRNA levels of various genes in the heart muscle and blood vessel tissues were further determined by RT-PCR assay. ABLS could reduce the systolic blood pressure (SBP), mean blood pressure (MBP), and diastolic blood pressure (DBP), compared to that of the model control group...
November 2016: Chinese Journal of Natural Medicines
https://www.readbyqxmd.com/read/27913896/mesenchymal-stem-cells-with-enos-over-expression-enhance-cardiac-repair-in-rats-with-myocardial-infarction
#14
Leilei Chen, Yuan Zhang, Liangliang Tao, Zhijian Yang, Liansheng Wang
PURPOSE: Transplantation of mesenchymal stem cells (MSCs) is a promising therapeutic option for patients with acute myocardial infarction. METHODS: We show here that the ectopic overexpression of endothelial nitric oxide synthases (eNOS), an endothelial form of NOS, could enhance the ability of MSCs in treating ischemic heart damage after the occlusion of the coronary artery. RESULTS: Adenoviral delivery of human eNOS gene into mouse bone marrow-derived MSCs (BM-MSCs) conferred resistance to oxygen glucose deprivation (OGD)-induced cell death in vitro, and elevated the bioavailability of nitric oxide when injected into the myocardium in vivo...
December 3, 2016: Cardiovascular Drugs and Therapy
https://www.readbyqxmd.com/read/27912206/irisin-lowers-blood-pressure-by-improvement-of-endothelial-dysfunction-via-ampk-akt-enos-no-pathway-in-the-spontaneously-hypertensive-rat
#15
Jinjuan Fu, Yu Han, Jialiang Wang, Yukai Liu, Shuo Zheng, Lin Zhou, Pedro A Jose, Chunyu Zeng
BACKGROUND: Exercise is a major nonpharmacological treatment for hypertension, but its underlying mechanisms are still not completely elucidated. Irisin, a polypeptide containing 112 amino acids, which is secreted mainly by skeletal muscle cells during exercise, exerts a protective role in metabolic diseases, such as diabetes mellitus and obesity. Because of the close relationship between irisin and metabolic diseases, we hypothesized that irisin may play a role in the regulation of blood pressure...
October 26, 2016: Journal of the American Heart Association
https://www.readbyqxmd.com/read/27912196/nox-isoforms-in-the-development-of-abdominal-aortic-aneurysm
#16
Kin Lung Siu, Qiang Li, Yixuan Zhang, Jun Guo, Ji Youn Youn, Jie Du, Hua Cai
Oxidative stress plays an important role in the formation of abdominal aortic aneurysm (AAA), and we have recently established a causal role of uncoupled eNOS in this severe human disease. We have also shown that activation of NADPH oxidase (NOX) lies upstream of uncoupled eNOS. Therefore, identification of the specific NOX isoforms that are required for eNOS uncoupling and AAA formation would ultimately lead to novel therapies for AAA. In the present study, we used the Ang II infused hph-1 mice to examine the roles of NOX isoforms in the development of AAA...
November 19, 2016: Redox Biology
https://www.readbyqxmd.com/read/27910955/pgc-1%C3%AE-dictates-endothelial-function-through-regulation-of-enos-expression
#17
Siobhan M Craige, Swenja Kröller-Schön, Chunying Li, Shashi Kant, Shenghe Cai, Kai Chen, Mayur M Contractor, Yongmei Pei, Eberhard Schulz, John F Keaney
Endothelial dysfunction is a characteristic of many vascular related diseases such as hypertension. Peroxisome proliferator activated receptor gamma, coactivator 1α (PGC-1α) is a unique stress sensor that largely acts to promote adaptive responses. Therefore, we sought to define the role of endothelial PGC-1α in vascular function using mice with endothelial specific loss of function (PGC-1α EC KO) and endothelial specific gain of function (PGC-1α EC TG). Here we report that endothelial PGC-1α is suppressed in angiotensin-II (ATII)-induced hypertension...
December 2, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27910123/congenital-infantile-fibrosarcoma-mimicking-a-cutaneous-vascular-lesion-a-case-report-and-review-of-the-literature
#18
Tyler Enos, Gregory A Hosler, Naseem Uddin, Adnan Mir
Congenital infantile fibrosarcoma (CIFS) is a rare neoplasm of infancy that occurs most frequently in the extremities, and when presenting in the skin, may sometimes resemble infantile hemangiomas or other vascular lesions. Clinically, these tumors differ from hemangiomas in the time of onset, morphology, and growth pattern and must be evaluated histologically for definitive diagnosis. We describe an infant with a neoplasm involving the distal left forearm initially presumed to be a vascular lesion after evaluation by two separate ultrasound studies...
November 7, 2016: Journal of Cutaneous Pathology
https://www.readbyqxmd.com/read/27909228/divergent-outcomes-of-fructose-consumption-on-exercise-capacity-of-rats-friend-or-foe
#19
Angela Sun, An Huang, Elizabeth Kertowidjojo, Su Song, Thomas H Hintze, Dong Sun
To test the hypothesis that high fructose (HF) consumption divergently affects exercise capability, as a function of feeding duration, rats were fed a normal (as control) or a normal caloric diet with HF for 3, 6, 10 and 30 days respectively, and run on a treadmill. Results show that running distance and work were significantly increased, associated with greater exercise oxygen consumption in rats fed HF for 3 (HF-3D) and 6 days, but were decreased in rats fed HF for 30 days (HF-30D) compared to their respective control rats...
December 1, 2016: Journal of Applied Physiology
https://www.readbyqxmd.com/read/27908688/increased-production-of-l-serine-in-escherichia-coli-through-adaptive-laboratory-evolution
#20
Hemanshu Mundhada, Jose S Miguel, Konstantin Schneider, Anna Koza, Hanne B Christensen, Tobias Klein, Patrick V Phaneuf, Markus Herrgard, Adam M Feist, Alex T Nielsen
L-serine is a promising building block biochemical with a high theoretical production yield from glucose. Toxicity of L-serine is however prohibitive for high-titer production in E. coli. Here, E. coli lacking L-serine degradation pathways was evolved for improved tolerance by gradually increasing L-serine concentration from 3 to 100g/L using adaptive laboratory evolution (ALE). Genome sequencing of isolated clones revealed multiplication of genetic regions, as well as mutations in thrA, thereby showing a potential mechanism of serine inhibition...
November 28, 2016: Metabolic Engineering
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