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Vascular pharmacology

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https://www.readbyqxmd.com/read/28330073/cladosporium-cladosporioides-from-the-perspectives-of-medical-and-biotechnological-approaches
#1
REVIEW
Manaf AlMatar, Essam A Makky
Fungi are important natural product sources that have enormous potential for the production of novel compounds for use in pharmacology, agricultural applications and industry. Compared with other natural sources such as plants, fungi are highly diverse but understudied. However, research on Cladosporium cladosporioides revealed the existence of bioactive products such as p-methylbenzoic acid, ergosterol peroxide (EP) and calphostin C as well as enzymes including pectin methylesterase (PME), polygalacturonase (PG) and chlorpyrifos hydrolase...
June 2016: 3 Biotech
https://www.readbyqxmd.com/read/28329261/effects-of-noise-on-vascular-function-oxidative-stress-and-inflammation-mechanistic-insight-from-studies-in-mice
#2
Thomas Münzel, Andreas Daiber, Sebastian Steven, Lan P Tran, Elisabeth Ullmann, Sabine Kossmann, Frank P Schmidt, Matthias Oelze, Ning Xia, Huige Li, Antonio Pinto, Philipp Wild, Kai Pies, Erwin R Schmidt, Steffen Rapp, Swenja Kröller-Schön
Aims: Epidemiological studies indicate that traffic noise increases the incidence of coronary artery disease, hypertension and stroke. The underlying mechanisms remain largely unknown. Field studies with nighttime noise exposure demonstrate that aircraft noise leads to vascular dysfunction, which is markedly improved by vitamin C, suggesting a key role of oxidative stress in causing this phenomenon. Methods and results: We developed a novel animal model to study the vascular consequences of aircraft noise exposure...
February 17, 2017: European Heart Journal
https://www.readbyqxmd.com/read/28328948/vascular-endothelial-overexpression-of-human-cyp2j2-tie2-cyp2j2-tr-modulates-cardiac-oxylipin-profiles-and-enhances-coronary-reactive-hyperemia-in-mice
#3
Ahmad Hanif, Matthew L Edin, Darryl C Zeldin, Christophe Morisseau, John R Falck, Mohammed A Nayeem
Arachidonic acid is metabolized to epoxyeicosatrienoic acids (EETs) by cytochrome (CYP) P450 epoxygenases, and to ω-terminal hydroxyeicosatetraenoic acids (HETEs) by ω-hydroxylases. EETs and HETEs often have opposite biologic effects; EETs are vasodilatory and protect against ischemia/reperfusion injury, while ω-terminal HETEs are vasoconstrictive and cause vascular dysfunction. Other oxylipins, such as epoxyoctadecaenoic acids (EpOMEs), hydroxyoctadecadienoic acids (HODEs), and prostanoids also have varied vascular effects...
2017: PloS One
https://www.readbyqxmd.com/read/28323904/pyrrolidine-dithiocarbamate-administered-during-ex-vivo-lung-perfusion-promotes-rehabilitation-of-injured-donor-rat-lungs-obtained-after-prolonged-warm-ischemia
#4
Cyril Francioli, Xingyu Wang, Roumen Parapanov, Etienne Abdelnour, Jérôme Lugrin, Fabrizio Gronchi, Jean Perentes, Philippe Eckert, Hans-Beat Ris, Lise Piquilloud, Thorsten Krueger, Lucas Liaudet
Damaged lung grafts obtained after circulatory death (DCD lungs) and warm ischemia may be at high risk of reperfusion injury after transplantation. Such lungs could be pharmacologically reconditioned using ex-vivo lung perfusion (EVLP). Since acute inflammation related to the activation of nuclear factor kappaB (NF-κB) is instrumental in lung reperfusion injury, we hypothesized that DCD lungs might be treated during EVLP by pyrrolidine dithiocarbamate (PDTC), an inhibitor of NF-κB. Rat lungs exposed to 1h warm ischemia and 2 h cold ischemia were subjected to EVLP during 4h, in absence (CTRL group, N = 6) or in presence of PDTC (2...
2017: PloS One
https://www.readbyqxmd.com/read/28323848/7%C3%AE-hydroxycholesterol-induces-monocyte-macrophage-cell-expression-of-interleukin-8-via-c5a-receptor
#5
Hyok-Rae Cho, Yonghae Son, Sun-Mi Kim, Bo-Young Kim, Seong-Kug Eo, Young Chul Park, Koanhoi Kim
We investigated effects of 7-oxygenated cholesterol derivatives present in atherosclerotic lesions, 7α-hydroxycholesterol (7αOHChol), 7β-hydroxycholesterol (7βOHChol), and 7-ketocholesterol (7K), on IL-8 expression. Transcript levels of IL-8 and secretion of its corresponding gene product by monocytes/macrophages were enhanced by treatment with 7αOHChol and, to a lesser extent, 7K, but not by 7βOHChol. The 7-oxygenated cholesterol derivatives, however, did not change transcription of the IL-8 gene in vascular smooth muscle cells...
2017: PloS One
https://www.readbyqxmd.com/read/28320710/myeloid-p53-regulates-macrophage-polarization-and-venous-thrombus-resolution-by-inflammatory-vascular-remodeling-in-mice
#6
Subhradip Mukhopadhyay, Toni M Antalis, Khanh P Nguyen, Mark H Hoofnagle, Rajabrata Sarkar
Deep venous thrombosis (DVT) remains a common and serious cardiovascular problem with both fatal and long-term consequences. The consequences of DVT include the development of post-thrombotic syndrome (PTS) in 25-60% of DVT patients. Despite the clinical importance of venous thrombus resolution, the cellular and molecular mediators involved are poorly understood, and currently there is no molecular therapy to accelerate this process. Several lines of evidence suggest that a complex and interrelated array of molecular signaling processes are involved in the inflammatory vascular remodeling associated with the resolution of DVT...
March 20, 2017: Blood
https://www.readbyqxmd.com/read/28319199/a-computational-analysis-of-in-vivo-vegfr-activation-by-multiple-co-expressed-ligands
#7
Lindsay E Clegg, Feilim Mac Gabhann
The splice isoforms of vascular endothelial growth A (VEGF) each have different affinities for the extracellular matrix (ECM) and the coreceptor NRP1, which leads to distinct vascular phenotypes in model systems expressing only a single VEGF isoform. ECM-immobilized VEGF can bind to and activate VEGF receptor 2 (VEGFR2) directly, with a different pattern of site-specific phosphorylation than diffusible VEGF. To date, the way in which ECM binding alters the distribution of isoforms of VEGF and of the related placental growth factor (PlGF) in the body and resulting angiogenic signaling is not well-understood...
March 20, 2017: PLoS Computational Biology
https://www.readbyqxmd.com/read/28302627/inhibition-of-smooth-muscle-%C3%AE-catenin-hinders-neointima-formation-after-vascular-injury
#8
Dario F Riascos-Bernal, Prameladevi Chinnasamy, Jordana N Gross, Vanessa Almonte, Lander Egaña-Gorroño, Dippal Parikh, Smitha Jayakumar, Liang Guo, Nicholas E S Sibinga
OBJECTIVE: Smooth muscle cells (SMCs) contribute to neointima formation after vascular injury. Although β-catenin expression is induced after injury, whether its function is essential in SMCs for neointimal growth is unknown. Moreover, although inhibitors of β-catenin have been developed, their effects on SMC growth have not been tested. We assessed the requirement for SMC β-catenin in short-term vascular homeostasis and in response to arterial injury and investigated the effects of β-catenin inhibitors on vascular SMC growth...
March 16, 2017: Arteriosclerosis, Thrombosis, and Vascular Biology
https://www.readbyqxmd.com/read/28300321/skeletal-colonization-by-breast-cancer-cells-is-stimulated-by-an-osteoblast-and-%C3%AE-2ar-dependent-neo-angiogenic-switch
#9
Patrick L Mulcrone, J Preston Campbell, Lise Clément-Demange, Ana Lia Anbinder, Alyssa R Merkel, Rolf A Brekken, Julie A Sterling, Florent Elefteriou
The skeleton is a common site for breast cancer metastasis. Although significant progress has been made to manage osteolytic bone lesions, the mechanisms driving the early steps of the bone metastatic process are still not sufficiently understood to design efficacious strategies needed to inhibit this process and offer preventative therapeutic options. Progression and recurrence of breast cancer, as well as reduced survival of patients with breast cancer, are associated with chronic stress, a condition known to stimulate sympathetic nerve outflow...
March 16, 2017: Journal of Bone and Mineral Research: the Official Journal of the American Society for Bone and Mineral Research
https://www.readbyqxmd.com/read/28299616/promise-of-sglt2-inhibitors-in-heart-failure-diabetes-and-beyond
#10
REVIEW
Pieter Martens, Chantal Mathieu, Frederik H Verbrugge
This review provides mechanistic insight in the pleiotropic effects of sodium-glucose transporter-2 (SGLT-2) inhibitors with particular interest to the pathophysiology of heart failure. The SGLT-2 inhibitor empagliflozin has recently demonstrated an unprecedented 38% reduction in cardiovascular mortality in patients with diabetes. Despite modest effects on long-term glycemic control, highly significant reductions in heart failure admissions and end-stage kidney disease were observed. SGLT-2 inhibitors are the latest approved class of glucose-lowering agents...
March 2017: Current Treatment Options in Cardiovascular Medicine
https://www.readbyqxmd.com/read/28296539/high-salt-induced-activation-and-expression-of-inflammatory-cytokines-in-cultured-astrocytes
#11
Zhezhi Deng, Yuge Wang, Li Zhou, Yilong Shan, Sha Tan, Wei Cai, Siyuan Liao, Lisheng Peng, Zhengqi Lu
Salt (sodium chloride, NaCl) accumulation in the brain is associated with various diseases of central nervous system (CNS). Activation of astrocytes is an important manifestation of pathophysiological processes in the CNS. However, the direct impact of high salt (HS) environment on astrocytes is unclear. In the current study, we found that high salt treatment can induce activation of astrocytes both in vivo and in vitro, manifested as morphological alteration coupled with increased expression of glial fibrillary acidic protein (GFAP)...
March 15, 2017: Cell Cycle
https://www.readbyqxmd.com/read/28295755/evidence-for-a-functional-vasoconstrictor-role-for-atp-in-the-human-cutaneous-microvasculature
#12
James A Lang, Alex C Krajek, Kevin A Smaller
Noradrenaline is responsible for eliciting ∼60% of the reflex cutaneous vasoconstriction (VC) response in young adults, whereas the remainder is due to one or more unidentified coreleased sympathetic adrenergic neurotransmitter(s). Inconsistent evidence has placed neuropeptide Y in this role; however, other putative cotransmitters have yet to be tested. We hypothesize that ATP contributes to the reflex cutaneous VC response. Two protocols were conducted in young adults (n = 10); both involved the placement of three microdialysis (MD) probes in forearm skin and whole-body cooling (Tsk  = 30...
March 10, 2017: Experimental Physiology
https://www.readbyqxmd.com/read/28290914/-nonplatelet-effects-of-ticagrelor
#13
V V Boiko, G N Soboleva
This review summarizes current knowledge concerning "nonplatelet effects of P2Y12 receptor antagonist ticagrelor. We show the experimental and clinical evidence that ticagrelor increases plasma concentration of adenosine as a potential mechanism of additive effects of ticagrelor. In addition, we sought to compare the clinical profile of ticagrelor with pharmacological effects of adenosine and discuss from this point of view the effects of ticagrelor on vascular tone, cardiac electrophysiology, ischemia/reperfusion injury, immunity and inflammatory reactions, peripheral nerves...
July 2016: Kardiologiia
https://www.readbyqxmd.com/read/28290186/phosphorus-and-other-aspects-of-ckd-mbd-in-the-conservative-management-of-chronic-kidney-disease
#14
Anuja Shah
As the prevalence of chronic kidney disease (CKD) increases and the population ages, there is an imperative to offer cost effective and patient specific therapeutic options for the management of advanced CKD. In cases where there is a desire to avoid or delay renal replacement therapy, conservative options need to be defined and strategies for delaying the need for renal replacement therapy should be offered. CKD-mineral bone disorders (MBD) refers to the constellation of disturbances in abnormal bone and soft tissue calcification along with abnormalities, in phosphorus, calcium, parathyroid hormone, vitamin D, and FGF-23...
June 2017: Panminerva Medica
https://www.readbyqxmd.com/read/28289780/multifaceted-interaction-of-bone-muscle-lifestyle-interventions-and-metabolic-and-cardiovascular-disease-role-of-osteocalcin
#15
REVIEW
I Levinger, T C Brennan-Speranza, A Zulli, L Parker, X Lin, J R Lewis, B B Yeap
Undercarboxylated osteocalcin (ucOC) may play a role in glucose homeostasis and cardiometabolic health. This review examines the epidemiological and interventional evidence associating osteocalcin (OC) and ucOC with metabolic risk and cardiovascular disease. The complexity in assessing such correlations, due to the observational nature of human studies, is discussed. Several studies have reported that higher levels of ucOC and OC are correlated with lower fat mass and HbA1c. In addition, improved measures of glycaemic control via pharmacological and non-pharmacological (e...
March 13, 2017: Osteoporosis International
https://www.readbyqxmd.com/read/28288349/perivascular-medical-devices-and-drug-delivery-systems-making-the-right-choices
#16
REVIEW
Ioanna Mylonaki, Éric Allémann, François Saucy, Jacques-Antoine Haefliger, Florence Delie, Olivier Jordan
Perivascular medical devices and perivascular drug delivery systems are conceived for local application around a blood vessel during open vascular surgery. These systems provide mechanical support and/or pharmacological activity for the prevention of intimal hyperplasia following vessel injury. Despite abundant reports in the literature and numerous clinical trials, no efficient perivascular treatment is available. In this review, the existing perivascular medical devices and perivascular drug delivery systems, such as polymeric gels, meshes, sheaths, wraps, matrices, and metal meshes, are jointly evaluated...
February 28, 2017: Biomaterials
https://www.readbyqxmd.com/read/28286751/new-delivery-systems-of-stem-cells-for-vascular-regeneration-in-ischemia
#17
REVIEW
Adegbenro Omotuyi John Fakoya
The finances of patients and countries are increasingly overwhelmed with the plague of cardiovascular diseases as a result of having to chronically manage the associated complications of ischemia such as heart failures, neurological deficits, chronic limb ulcers, gangrenes, and amputations. Hence, scientific research has sought for alternate therapies since pharmacological and surgical treatments have fallen below expectations in providing the desired quality of life. The advent of stem cells research has raised expectations with respect to vascular regeneration and tissue remodeling, hence assuring the patients of the possibility of an improved quality of life...
2017: Frontiers in Cardiovascular Medicine
https://www.readbyqxmd.com/read/28285016/gper-modulators-opportunity-nox-on-the-heels-of-a-class-akt
#18
Eric R Prossnitz
The (patho)physiology of estrogen and its receptors is complex. It is therefore not surprising that therapeutic approaches targeting this hormone include stimulation of its activity through supplementation with either the hormone itself or natural or synthetic agonists, inhibition of its activity through the use of antagonists or inhibitors of its synthesis, and tissue-selective modulation of its activity with biased ligands. The physiology of this hormone is further complicated by the existence of at least three receptors, the classical nuclear estrogen receptors α and β (ERα and ERβ), and the 7-transmembrane G protein-coupled estrogen receptor (GPER/GPR30), with overlapping but distinct pharmacologic profiles, particularly of anti-estrogenic ligands...
March 8, 2017: Journal of Steroid Biochemistry and Molecular Biology
https://www.readbyqxmd.com/read/28278524/management-of-thrombotic-antiphospholipid-syndrome
#19
Cecilia Beatrice Chighizola, Maria Gabriella Raimondo, Pier Luigi Meroni
Persistent serum positivity for antiphospholipid antibodies (aPL) is required to diagnose antiphospholipid syndrome (APS), an autoimmune disease characterized by recurrent vascular thrombosis and/or pregnancy morbidity. The current therapeutic management of patients with thrombotic APS aims at preventing recurrences and long-term complications by attenuating the procoagulant state. There is overall consensus to reserve moderate-intensity anticoagulation to aPL-positive patients with a previous venous thrombosis; the therapeutic options for those with a history of arterial event comprise antiplatelet agents and high-intensity anticoagulation...
March 9, 2017: Seminars in Thrombosis and Hemostasis
https://www.readbyqxmd.com/read/28276483/vascular-transcriptome-profiling-identifies-sphingosine-kinase-1-as-a-modulator-of-angiotensin-ii-induced-vascular-dysfunction
#20
Mateusz Siedlinski, Ryszard Nosalski, Piotr Szczepaniak, Agnieszka H Ludwig-Gałęzowska, Tomasz Mikołajczyk, Magdalena Filip, Grzegorz Osmenda, Grzegorz Wilk, Michał Nowak, Paweł Wołkow, Tomasz J Guzik
Vascular dysfunction is an important phenomenon in hypertension. We hypothesized that angiotensin II (AngII) affects transcriptome in the vasculature in a region-specific manner, which may help to identify genes related to vascular dysfunction in AngII-induced hypertension. Mesenteric artery and aortic transcriptome was profiled using Illumina WG-6v2.0 chip in control and AngII infused (490 ng/kg/min) hypertensive mice. Gene set enrichment and leading edge analyses identified Sphingosine kinase 1 (Sphk1) in the highest number of pathways affected by AngII...
March 9, 2017: Scientific Reports
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