keyword
MENU ▼
Read by QxMD icon Read
search

Prostanoid

keyword
https://www.readbyqxmd.com/read/29332128/pharmacologic-characterization-of-omidenepag-isopropyl-a-novel-selective-ep2-receptor-agonist-as-an-ocular-hypotensive-agent
#1
Tomoko Kirihara, Takazumi Taniguchi, Kenzo Yamamura, Ryo Iwamura, Kenji Yoneda, Noriko Odani-Kawabata, Atsushi Shimazaki, Takeshi Matsugi, Naveed Shams, Jin-Zhong Zhang
Purpose: The objective of this study was to investigate the pharmacologic characteristics of omidenepag isopropyl (OMDI), a compound developed as a novel intraocular pressure (IOP)-lowering agent, with better IOP control and fewer side effects than other prostanoid receptor agonists such as prostaglandin F receptor (FP) agonists. Methods: Binding activities of OMDI and its hydrolyzed form, omidenepag (OMD), to human recombinant prostanoid receptors (DP1-2, EP1-4, FP, and IP) were evaluated...
January 1, 2018: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/29320841/the-role-of-klotho-in-systemic-sclerosis
#2
R Talotta, S Bongiovanni, T Letizia, F Rigamonti, F Atzeni, M Benucci, T Vago, P Sarzi-Puttini
The aim was to evaluate the role of klotho in the pathogenesis of systemic sclerosis (SSc), through the measurement of its serum concentration in SSc patients compared to healthy controls, and to assess the association with cutaneous and visceral involvement. Blood samples obtained from both SSc patients and healthy controls were analysed by an ELISA assay for the detection of human klotho. SSc patients were globally evaluated for disease activity and assessed through the modified Rodnan's Skin Score, Medsger's scale, pulmonary function tests, 2D-echocardiography, nailfold capillaroscopy and laboratory tests...
December 21, 2017: Reumatismo
https://www.readbyqxmd.com/read/29318581/prostanoids-for-critical-limb-ischaemia
#3
REVIEW
Valeria Vietto, Juan Va Franco, Victoria Saenz, Denise Cytryn, Jose Chas, Agustín Ciapponi
BACKGROUND: Peripheral arterial occlusive disease (PAOD) is a common cause of morbidity and mortality due to cardiovascular disease in the general population. Although numerous treatments have been adopted for patients at different disease stages, no option other than amputation is available for patients presenting with critical limb ischaemia (CLI) unsuitable for rescue or reconstructive intervention. In this regard, prostanoids have been proposed as a therapeutic alternative, with the aim of increasing blood supply to the limb with occluded arteries through their vasodilatory, antithrombotic, and anti-inflammatory effects...
January 10, 2018: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/29309904/regulator-of-calcineurin-1-modulates-vascular-contractility-and-stiffness-through-the-upregulation-of-cox-2-derived-prostanoids
#4
Ana B García-Redondo, Vanesa Esteban, Ana M Briones, Lucía S Díaz Del Campo, María González-Amor, Nerea Méndez-Barbero, Miguel R Campanero, Juan M Redondo, Mercedes Salaices A
Cyclooxygenase-2 (COX-2) derived-prostanoids participate in the altered vascular function and mechanical properties in cardiovascular diseases. We investigated whether regulator of calcineurin 1 (Rcan1) participates in vascular contractility and stiffness through the regulation of COX-2. For this, wild type (Rcan1+/+) and Rcan1-deficient (Rcan1-/-) mice untreated or treated with the COX-2 inhibitor rofecoxib were used. Vascular function and structure were analysed by myography. COX-2 and phospo-p65 expression were studied by western blotting and immunohistochemistry and TXA2 production by ELISA...
January 5, 2018: Pharmacological Research: the Official Journal of the Italian Pharmacological Society
https://www.readbyqxmd.com/read/29309237/express-central-line-replacement-following-infection-does-not-improve-reinfection-rates-in-pediatric-pulmonary-hypertension-patients-receiving-intravenous-prostanoid-therapy
#5
Elisa McCarthy, Michelle T Ogawa, Rachel K Hopper, Jeffrey A Feinstein, Hayley A Gans
No abstract text is available yet for this article.
January 1, 2018: Pulmonary Circulation
https://www.readbyqxmd.com/read/29306822/celecoxib-a-cyclooxygenase-2-inhibitor-offers-chemoprevention-against-reproductive-and-neurobehavioural-abnormalities-induced-by-atrazine-in-male-wistar-rats
#6
O E Kale, T O Oyesola, F S Raji
The cyclooxygenase-2/prostanoid pathway (COX-2) serves as a potential therapeutic target in various pathological conditions. Thus, the modulatory effect of celecoxib (CXB), a COX-2 inhibitor, in atrazine-induced toxicity was investigated. Five groups (n = 6 rats per group) of adult male Wistar rats received corn oil (2 ml/kg), atrazine (ATZ, 300 mg/kg) and CXB (5.7 mg/kg) respectively and their combinations via the oral route. Results obtained showed reduced (p < 0.05) sperm motility (25.8%) and counts (27...
December 30, 2017: Environmental Toxicology and Pharmacology
https://www.readbyqxmd.com/read/29289470/prostanoid-dependent-bladder-pain-caused-by-proteinase-activated-receptor-2-activation-in-mice-involvement-of-trpv1-and-t-type-ca2-channels
#7
Maho Tsubota, Tomoka Ozaki, Yuko Hayashi, Yasumasa Okawa, Ayaka Fujimura, Fumiko Sekiguchi, Hiroyuki Nishikawa, Atsufumi Kawabata
We studied the pronociceptive role of proteinase-activated receptor-2 (PAR2) in mouse bladder. In female mice, intravesical infusion of the PAR2-activating peptide, SLIGRL-amide (SL), caused delayed mechanical hypersensitivity in the lower abdomen, namely 'referred hyperalgesia', 6-24 h after the administration. The PAR2-triggered referred hyperalgesia was prevented by indomethacin or a selective TRPV1 blocker, and restored by a T-type Ca2+ channel blocker. In human urothelial T24 cells, SL caused delayed prostaglandin E2 production and COX-2 upregulation...
December 15, 2017: Journal of Pharmacological Sciences
https://www.readbyqxmd.com/read/29284502/reciprocal-interactions-between-prostaglandin-e2-and-estradiol-dependent-signaling-pathways-in-the-injured-zebra-finch-brain
#8
Alyssa L Pedersen, Colin J Saldanha
BACKGROUND: Astrocytic aromatization and consequent increases in estradiol are neuroprotective in the injured brain. In zebra finches, cyclooxygenase-activity is necessary for injury-induced aromatase expression, and increased central estradiol lowers neuroinflammation. The mechanisms underlying these influences are unknown. Here, we document injury-induced, cyclooxygenase-dependent increases in glial aromatase expression and replicate previous work in our lab showing increases in central prostaglandin E2 and estradiol following brain damage...
December 29, 2017: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/29284385/therapeutic-applications-of-prostaglandins-and-thromboxane-a2-inhibitors-in-abdominal-aortic-aneurysms
#9
Courtois Audrey, Makrygiannis Georgios, Cheramy-Bien Jean-Paul, Purnelle Audrey, Pirotte Bernard, Jean Michel Dogné, Julien Hanson, Defraigne Jean-Olivier, Drion Pierre, Natzi Sakalihasan
Abdominal aortic aneurysm (AAA) is one of the leading causes of death in western countries. Surgery is still, at the present time, the sole treatment that has however a significant mortality and cost rate. Many pharmacological agents are under investigation aiming to reduce growth and prevent AAA rupture. These drugs target different pathological pathways and, notably, the excessive production of prostanoids by cyclooxygenases (COX). Intra-aneurysmal thrombus plays an adverse key role in the progression of AAA, platelets being a primary source of prostanoids as thromboxane A2...
December 27, 2017: Current Drug Targets
https://www.readbyqxmd.com/read/29273789/widespread-coronary-dysfunction-in-the-absence-of-hdl-receptor-sr-b1-in-an-ischemic-cardiomyopathy-mouse-model
#10
James T Pearson, Misa Yoshimoto, Yi Ching Chen, Rohullah Sultani, Amanda J Edgley, Hajime Nakaoka, Makoto Nishida, Keiji Umetani, Mark T Waddingham, Hui-Ling Jin, Yuan Zhang, Darren J Kelly, Daryl O Schwenke, Tadakatsu Inagaki, Hirotsugu Tsuchimochi, Issei Komuro, Shizuya Yamashita, Mikiyasu Shirai
Reduced clearance of lipoproteins by HDL scavenger receptor class B1 (SR-B1) plays an important role in occlusive coronary artery disease. However, it is not clear how much microvascular dysfunction contributes to ischemic cardiomyopathy. Our aim was to determine the distribution of vascular dysfunction in vivo in the coronary circulation of male mice after brief exposure to Paigen high fat diet, and whether this vasomotor dysfunction involved nitric oxide (NO) and or endothelium derived hyperpolarization factors (EDHF)...
December 22, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29262264/pde8-is-expressed-in-human-airway-smooth-muscle-and-selectively-regulates-camp-signaling-by-%C3%AE-2ar-ac6
#11
Timothy B Johnstone, Kaitlyn H Smith, Cynthia J Koziol-White, Fengying Li, Austin G Kazarian, Maia L Corpuz, Maya Shumyatcher, Frederick J Ehlert, Blanca E Himes, Reynold A Panettieri, Rennolds S Ostrom
Two cAMP signaling compartments centering around adenylyl cyclase (AC) exist in human airway smooth muscle (HASM) cells, one containing ß2AR-AC6 and another containing E prostanoid receptors (EPR)-AC2. We hypothesized that different phosphodiesterase (PDE) isozymes selectively regulate cAMP signaling in each compartment. According to RNA-seq data, 18 of 24 PDE genes were expressed in primary HASM cells derived from age- and gender-matched donors with and without asthma. PDE8A was the third most abundant of the cAMP-degrading PDE genes, after PDE4A and PDE1A...
December 20, 2017: American Journal of Respiratory Cell and Molecular Biology
https://www.readbyqxmd.com/read/29249170/occult-catheter-rupture-causing-episodic-symptoms-in-a-patient-treated-with-epoprostenol
#12
Barbara L LeVarge, Anica C Law, Blanche Murphy
Infection, thrombosis, and catheter dislodgment are well-recognized potential complications of chronic intravenous prostanoid therapy for pulmonary arterial hypertension. As long-term outcomes of pulmonary hypertension patients improve, novel adverse events are likely to arise. We describe the sudden development of unexplained hypotension and lightheadedness in a patient receiving intravenous epoprostenol for several years, ultimately determined to be due to an unusual catheter complication, not previously described in this population...
January 2018: Pulmonary Circulation
https://www.readbyqxmd.com/read/29238967/potent-anti-inflammatory-and-pro-resolving-effects-of-anabasum-in-a-human-model-of-self-resolving-acute-inflammation
#13
Madhur P Motwani, Frances Bennett, Paul C Norris, Alexander A Maini, Marc J George, Justine Newson, Alice Henderson, Adrian J Hobbs, Mark Tepper, Barbara White, Charles N Serhan, Raymond MacAllister, Derek W Gilroy
Anabasum is a synthetic analogue of Δ8 - tetrahydrocannabinol (THC)-11-oic acid that in pre-clinical models of experimental inflammation exerts potent anti-inflammatory actions with minimal CNS cannabimimetic activity. Here we used a novel model of acute inflammation driven by i.d. UV-killed E. coli in healthy humans and found that Anabasum (5mg) exerted a potent anti-inflammatory effect equivalent to that of prednisolone in terms of inhibiting neutrophil infiltration, the hallmark of acute inflammation. These effects arose from the inhibition of the neutrophil chemoattractant LTB4 , while the inhibition of anti-phagocytic prostanoids (PGE2 , TxB2 and PGF2 α) resulted in enhanced clearance of inflammatory stimulus from the injected site...
December 14, 2017: Clinical Pharmacology and Therapeutics
https://www.readbyqxmd.com/read/29233198/clinical-efficacy-and-safety-of-switch-from-bosentan-to-macitentan-in-children-and-young-adults-with-pulmonary-arterial-hypertension
#14
Ebru Aypar, Dursun Alehan, Tevfik Karagöz, Hayrettin Hakan Aykan, İlker Ertugrul
BACKGROUND: Macitentan is an orally active, potent, dual endothelin receptor antagonist and is the only registered treatment for pulmonary arterial hypertension that significantly reduced morbidity and mortality in a long-term event-driven study. Aim Few studies compared the clinical efficacy and safety of switch from bosentan to macitentan only in adult patients with pulmonary arterial hypertension. We aimed to evaluate the clinical efficacy and safety of switch from bosentan to macitentan in children and young adults...
December 13, 2017: Cardiology in the Young
https://www.readbyqxmd.com/read/29226622/pde4-inhibitor-rolipram-inhibits-the-expression-of-microsomal-prostaglandin-e-synthase-1-by-a-mechanism-dependent-on-map-kinase-phosphatase-1
#15
Lauri Tuure, Mari Hämäläinen, Eeva Moilanen
Phosphodiesterase-4 (PDE4) inhibitors have recently been introduced to the treatment of COPD and psoriatic arthritis. Microsomal prostaglandin E synthase-1 (mPGES-1) is an inducible enzyme synthesizing PGE2 , the most abundant prostanoid related to inflammation and inflammatory pain. mPGES-1 is a potential drug target for novel anti-inflammatory treatments aiming at an improved safety profile as compared to NSAIDs. Here we investigated the effect of the PDE4 inhibitor rolipram on the expression of mPGES-1 in macrophages; and a potential mediator role in the process for MAP kinase phosphatase-1 (MKP-1) which is an endogenous factor limiting the activity of the proinflammatory MAP kinases p38 and JNK...
December 2017: Pharmacology Research & Perspectives
https://www.readbyqxmd.com/read/29226044/neuroanatomy-and-neuropsychology-of-pain
#16
REVIEW
Shehzad Khalid, R Shane Tubbs
We have reviewed here the neuroanatomical and neuropsychological literature of the human brain and have proposed the various pain mechanisms that we currently know of. Essentially when tissue is damaged, peripheral nociceptors are activated continuously and prostanoids are hence produced. Nonsteroidal anti-inflammatory drugs (NSAIDs) and medications aim to target these prostanoids to treat the inflammatory component of pain. Normal pain tends to have a protective response. It is important for the nervous system to learn and recognize this painful stimulus earlier and quicker with repeated exposure to avoid tissue damage...
October 6, 2017: Curēus
https://www.readbyqxmd.com/read/29225187/prostaglandin-d2-generation-from-human-lung-mast-cells-is-catalysed-exclusively-by-cyclooxygenase-1
#17
Bandar K Baothman, Jennifer Smith, Linda J Kay, S Kim Suvarna, Peter T Peachell
Mast cells are an exceptionally rich source of prostaglandin D2 (PGD2). PGD2 is pro-inflammatory and can cause bronchoconstriction. The enzyme cyclooxygenase (COX) is central to the generation of prostanoids such as PGD2. Non-steroidal anti-inflammatory drugs (NSAIDs) inhibit COX. COX exists as two isoforms, COX-1 and COX-2. The principal aim of this study was to establish whether COX-1 and/or COX-2 mediates PGD2 generation from human lung mast cells. Mast cells were isolated from human lung tissue and purified by flotation over Percoll and immunomagnetic bead separations...
December 7, 2017: European Journal of Pharmacology
https://www.readbyqxmd.com/read/29215546/initial-tadalafil-and-ambrisentan-combination-therapy-in-pulmonary-arterial-hypertension-clinical-and-haemodynamic-long-term-efficacy-italy-study
#18
Michele D'Alto, Emanuele Romeo, Paola Argiento, Giuseppe Paciocco, Renato Prediletto, Stefano Ghio, Michele Correale, Francesco Lo Giudice, Roberto Badagliacca, Alessandra Greco, Carmine Dario Vizza
AIMS: Initial combination therapy with ambrisentan and tadalafil (upfront therapy) offers clinical benefits in pulmonary arterial hypertension (PAH) and reduces the risk of clinical failure compared with monotherapy in naïve patients. The aim of study is to assess the efficacy of a 12-month upfront therapy with ambrisentan and tadalafil in improving haemodynamics in incident PAH patients. METHODS: This is a multicentre retrospective analysis of real-world Italian clinical data in 56 patients with newly diagnosed PAH...
January 2018: Journal of Cardiovascular Medicine
https://www.readbyqxmd.com/read/29204966/roles-of-organic-anion-transporting-polypeptide-2a1-oatp2a1-slco2a1-in-regulating-the-pathophysiological-actions-of-prostaglandins
#19
Takeo Nakanishi, Ikumi Tamai
Solute carrier organic anion transporter family member 2A1 (OATP2A1, encoded by the SLCO2A1 gene), which was initially identified as prostaglandin transporter (PGT), is expressed ubiquitously in tissues and mediates the distribution of prostanoids, such as PGE2, PGF2α, PGD2 and TxB2. It is well known to play a key role in the metabolic clearance of prostaglandins, which are taken up into the cell by OATP2A1 and then oxidatively inactivated by 15-ketoprostaglandin dehydrogenase (encoded by HPGD); indeed, OATP2A1-mediated uptake is the rate-limiting step of PGE2 catabolism...
December 4, 2017: AAPS Journal
https://www.readbyqxmd.com/read/29196500/reduced-prostaglandin-i2-signaling-in-arid5b-primary-skeletal-muscle-cells-attenuates-myogenesis
#20
Jennifer Murray, Robert H Whitson, Keiichi Itakura
The AT-rich interaction domain (ARID) family of proteins regulates gene expression, development, and differentiation. Although Arid5b has important functions in adipogenesis and chondrogenesis, the role of Arid5b in skeletal muscle myogenesis has not been investigated. Therefore, we isolated primary skeletal muscle cells from Arid5b+/+ and Arid5b-/- mice and characterized differentiation in these cells. We found that Arid5b-/- primary skeletal muscle cells showed differentiation defects and impaired sarcomeric assembly...
December 1, 2017: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
keyword
keyword
10486
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"