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prostaglandin e1

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https://www.readbyqxmd.com/read/29232862/effect-of-oxylipins-terpenoid-precursors-and-wounding-on-soft-corals-secondary-metabolism-as-analyzed-via-uplc-ms-and-chemometrics
#1
Mohamed A Farag, Hildegard Westphal, Tarek F Eissa, Ludger A Wessjohann, Achim Meyer
The effect of three oxylipin analogues, a terpenoid intermediate and wounding on the secondary metabolism of the soft corals Sarcophyton glaucum and Lobophyton pauciflorum was assessed. Examined oxylipins included prostaglandin (PG-E1), methyl jasmonate (MeJA), and arachidonic acid (AA) in addition to the diterpene precursor geranylgeranylpyrophosphate (GGP). Post-elicitation, metabolites were extracted from coral heads and analyzed via UPLC-MS followed by multivariate data analyses. Both supervised and unsupervised data analyses were used for sample classification...
December 10, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/29206731/enteral-feeding-practices-in-infants-with-congenital-heart-disease-across-european-picus-a-european-society-of-pediatric-and-neonatal-intensive-care-survey
#2
Lyvonne N Tume, Reinis Balmaks, Eduardo da Cruz, Lynne Latten, Sascha Verbruggen, Frédéric V Valla
OBJECTIVES: To describe enteral feeding practices in pre and postoperative infants with congenital heart disease in European PICUs. DESIGN: Cross-sectional electronic survey. SETTING: European PICUs that admit infants with congenital heart disease pre- and postoperatively. PARTICIPANTS: One senior PICU physician or designated person per unit. INTERVENTIONS: None. MEASUREMENTS AND MAIN RESULTS: Fifty-nine PICUs from 18 European countries responded to the survey...
December 4, 2017: Pediatric Critical Care Medicine
https://www.readbyqxmd.com/read/29185789/integrated-treatment-of-prostaglandin-e1-and-angiotensin-converting-enzyme-inhibitor-in-diabetic-kidney-disease-rats-possible-role-of-antiapoptosis-in-renal-tubular-epithelial-cells
#3
Yaru Mou, Yaqin Zhang, Congcong Guo, Junyu Zhao, Zhongwen Zhang, Xiaojun Zhou, Jianjun Dong, Lin Liao
To investigate the therapeutic mechanisms underlying prostaglandin E1 (PGE1) and angiotensin-converting enzyme inhibitor (ACEI) on reducing urinary protein in diabetic kidney disease (DKD). DKD rats were established and randomly divided into four groups: PGE1 (10 μg/kg/day) (P group), ACEI (10 mg/kg/day) (A group), combination of PGE1 with ACEI treatment (P + A group), and saline treatment group (DKD group). Untreated rats were used as normal control (N group). Urinary albumin, endothelin-1 (ET-1), angiotensin II (AngII), TUNEL assay, Masson's trichrome staining, and immunohistochemistry staining for CD68 were evaluated in all groups...
November 29, 2017: DNA and Cell Biology
https://www.readbyqxmd.com/read/29173181/misoprostol-induced-acute-coronary-syndrome-in-a-premenopausal-woman-a-case-report-with-literature-review
#4
Faizan Mazhar, Jabeen Sultana, Shahzad Akram
Misoprostol is a synthetic analog of prostaglandin-E1 and it is most widely used drug for the medical management of incomplete abortion. Acute coronary syndrome (ACS) rarely occurs in perimenopausal women, in addition, the presentation is atypical, so the disease is not always recognized. We describe a case of 39-year-old woman with no major underlying cardiovascular risk factors, who developed an episode of ACS following the administration of two doses of misoprostol. After the discontinuation of misoprostol treatment, there was a complete resolution of patient's symptoms...
November 21, 2017: Current Drug Safety
https://www.readbyqxmd.com/read/29162633/use-of-prostaglandins-in-duct-dependent-congenital-heart-conditions
#5
REVIEW
Yogen Singh, Paraskevi Mikrou
Congenital heart disease (CHD) remains a leading cause of infant mortality, which is even higher in infants with undiagnosed duct-dependent CHDs. Up to 39%-50% of infants with critical CHD are being discharged undiagnosed from the hospital. Infants with duct-dependent critical CHD remain well during the fetal period and may deteriorate when the ductus arteriosus (commonly called 'duct') closes after birth. It is critical to open or maintain ductus arteriosus patent in infants with duct-dependent CHDs. Prostaglandin E1 (alprostadil marketed as 'Prostin VR ') and prostaglandin E2 (dinoprostone) are used to maintain a patent ductus arteriosus and the dose of medication depends on the clinical presentation...
November 21, 2017: Archives of Disease in Childhood. Education and Practice Edition
https://www.readbyqxmd.com/read/29142472/prostaglandin-e1-protects-hepatocytes-against-endoplasmic-reticulum-stress-induced-apoptosis-via-protein-kinase-a-dependent-induction-of-glucose-regulated-protein-78-expression
#6
Fang-Wan Yang, Yu Fu, Ying Li, Yi-Huai He, Mao-Yuan Mu, Qi-Chuan Liu, Jun Long, Shi-De Lin
AIM: To investigate the protective effect of prostaglandin E1 (PGE1) against endoplasmic reticulum (ER) stress-induced hepatocyte apoptosis, and to explore its underlying mechanisms. METHODS: Thapsigargin (TG) was used to induce ER stress in the human hepatic cell line L02 and hepatocarcinoma-derived cell line HepG2. To evaluate the effects of PGE1 on TG-induced apoptosis, PGE1 was used an hour prior to TG treatment. Activation of unfolded protein response signaling pathways were detected by western blotting and quantitative real-time RT-PCR...
October 28, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/29122956/characterization-of-age-related-penile-microvascular-hemodynamic-impairment-using-laser-speckle-contrast-imaging-possible-role-of-increased-fibrogenesis
#7
Seung-Ryeol Lee, Ki-Ho Kim, Ho-Song You, Johnny Fu, Tung-Chin Mike Hsieh, Valmik Bhargava, M Raj Rajasekaran
Current technology for penile hemodynamic evaluations in small animals is invasive and has limitations. We evaluated a novel laser speckle contrast imaging (LSCI) technique to determine age-related changes in penile microvascular perfusion (PMP) and tested the role of cavernosal muscle (CC) fibrosis mediated by Wnt-TGF β1 signaling pathways in a mouse model. Ten young (2-3 months) and old (24-28 months) wild-type C57BL6 male mice were subjected to PMP measured using a LSCI system. Penile blood flow (PBF, peak systolic velocity, PSV) was also measured using a color Doppler ultrasound for comparison...
November 2017: Physiological Reports
https://www.readbyqxmd.com/read/29043105/retraction-notice-to-therapeutic-effect-of-prostaglandin-e1-in-monocrotaline-induced-pulmonary-arterial-hypertension-rats-by-lee-jc-anat-cell-biol-2017-50-60-8
#8
Jae Chul Lee
[This retracts the article on p. 60 in vol. 50, PMID: 28417056.].
September 2017: Anatomy & Cell Biology
https://www.readbyqxmd.com/read/29034249/misoprostol-inhibits-lipopolysaccharide-induced-pro-inflammatory-cytokine-production-by-equine-leukocytes
#9
Emily Medlin Martin, Kristen M Messenger, Mary Katherine Sheats, Samuel L Jones
Pro-inflammatory cytokines including tumor necrosis factor α (TNFα), IL-1β, IL-6, and IL-8 are potent immune mediators that exacerbate multiple equine diseases such as sepsis and laminitis. Unfortunately, safe and effective cytokine-targeting therapies are lacking in horses; therefore, novel mechanisms of inhibiting cytokine production are critically needed. One potential mechanism for inhibiting cytokine synthesis is elevation of intracellular cyclic AMP (cAMP). In human leukocytes, intracellular cAMP production is induced by activation of E-prostanoid (EP) receptors 2 and 4...
2017: Frontiers in Veterinary Science
https://www.readbyqxmd.com/read/29016438/ono-1301-enhances-in-vitro-osteoblast-differentiation-and-in-vivo-bone-formation-induced-by-bone-morphogenetic-protein
#10
Sadaaki Kanayama, Takashi Kaito, Kazuma Kitaguchi, Hiroyuki Ishiguro, Kunihiko Hashimoto, Ryota Chijimatsu, Satoru Otsuru, Shota Takenaka, Takahiro Makino, Yusuke Sakai, Akira Myoui, Hideki Yoshikawa
STUDY DESIGN: In vitro and in vivo assessment of osteogenic effect by prostacyclin agonist (ONO-1301) OBJECTIVE.: To investigate the effects of ONO-1301 on in vitro osteoblastic differentiation and in vivo bone formation induced by bone morphogenetic protein (BMP). SUMMARY OF BACKGROUND DATA: Among prostaglandins (PGs), PGE2 is the most abundant in bone tissue and its effects on bone formation have been well studied. PGI2 (prostacyclin) is the second most abundant PG in bone tissue and plays important roles in hemodynamics...
October 9, 2017: Spine
https://www.readbyqxmd.com/read/28954306/prostaglandin-e1-protects-the-peripheral-nerve-in-diabetics-through-preventing-vascular-permeability-changes
#11
Feifei Mo, Guotao Hu, Wei Liu, Li He, Hailan Wang
Objective The aims of this study were to investigate the effects of the vasodilator prostaglandin E1 on microvascular permeability, the expression of vascular endothelial growth factor (VEGF), as well as the structural and functional changes of the peripheral nerve in diabetic rats. Methods Streptozotocin-induced diabetes mellitus were randomly divided into two groups and intraperitoneally received, once daily, an injection of prostaglandin E1 at 1.6 μg/kg in normal saline or the same volume of normal saline (diabetic control), respectively...
September 27, 2017: Experimental and Clinical Endocrinology & Diabetes
https://www.readbyqxmd.com/read/28923309/altered-penile-caveolin-expression-in-diabetes-potential-role-in-erectile-dysfunction
#12
Jay Parikh, Alice Zemljic-Harpf, Johnny Fu, Dimosthenis Giamouridis, Tung-Chin Hsieh, Adam Kassan, Karnam S Murthy, Valmik Bhargava, Hemal H Patel, M Raj Rajasekaran
BACKGROUND: The pathophysiology of increased severity of erectile dysfunction in men with diabetes and their poor response to oral pharmacotherapy are unclear. Defective vascular endothelium and consequent impairment in the formation and action of nitric oxide (NO) are implicated as potential mechanisms. Endothelial NO synthase, critical for NO generation, is localized to caveolae, plasma membrane lipid rafts enriched in structural proteins, and caveolins. Type 2 diabetes mellitus (T2DM)-induced changes in caveolin expression are recognized to play a role in cardiovascular dysfunction...
October 2017: Journal of Sexual Medicine
https://www.readbyqxmd.com/read/28919798/comparative-effects-of-the-%C3%AF-3-polyunsaturated-fatty-acid-derivatives-resolvins-e1-and-d1-and-protectin-dx-in-models-of-inflammation-and-pain
#13
Flávia Cs Fonseca, Ricardo M Orlando, Regina Mm Turchetti-Maia, Janetti Nogueira de Francischi
PURPOSE: Specialized pro-resolving lipid mediators (SPMs), also known as lipoxins, resolvins (Rvs), protectins and maresins, have been implicated in the resolution of the inflammatory process. However, a systematic comparison of their activity in the relief of inflammation and pain models is still lacking. MATERIALS AND METHODS: The effects of Rvs E1 and D1 and protectin DX (PDX) were assessed in rat paws inflamed by the standard proinflammatory stimulus carrageenan or by histamine, 5-hydroxytryptamine, substance P or prostaglandin E2...
2017: Journal of Inflammation Research
https://www.readbyqxmd.com/read/28867757/visual-field-improvement-in-non-arteritic-posterior-ischemic-optic-neuropathy-in-a-patient-treated-with-intravenous-prostaglandin-e1-and-steroids
#14
Robert Davis Jr Steigerwalt, Paolo Giuseppe Limoli, Marcella Nebbioso
Non-arteritic posterior ischemic optic neuropathy (NA-PION) is a disorder of reduced blood flow to the retrobulbar optic nerve. There is usually an acute loss of visual acuity and field. Previous studies have noted an improvement in visual acuity and in ocular and retrobulbar blood flow with the use of a potent vasodilator of the microcirculation, prostaglandin E1 (PGE1), and steroids. The current report describes immediate improvement in the visual fields and visual acuity in a patient with NA-PION treated with intravenous PGE1 and steroids 66 hours after onset...
2017: Drug Discoveries & Therapeutics
https://www.readbyqxmd.com/read/28855544/prostaglandin-e1-attenuates-pulmonary-artery-remodeling-by-activating-phosphorylation-of-creb-and-the-pten-signaling-pathway
#15
Ying-Ju Lai, Hsao-Hsun Hsu, Gwo-Jyh Chang, Shu-Hui Lin, Wei-Jan Chen, Chung-Chi Huang, Jong-Hwei S Pang
The depletion of cyclic adenosine monophosphate (cAMP) response element binding protein (CREB) and phosphatase and tensin homolog (PTEN) is the critical mediator of pulmonary arterial hypertension (PAH). We hypothesized that the activation of phosphorylated CREB (pCREB) and PTEN could inhibit the AKT signaling pathway to attenuate pulmonary arterial remodeling in rats with monocrotaline-induced PAH. We observed decreased PTEN and pCREB in idiopathic PAH versus control tissue. We reduced PTEN using small interfering RNA in human control pulmonary arterial smooth muscle cells (PASMCs) and observed an increase in pAKT...
August 30, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28844837/prostaglandin-e1-and-its-analog-misoprostol-inhibit-human-cml-stem-cell-self-renewal-via-ep4-receptor-activation-and-repression-of-ap-1
#16
Fengyin Li, Bing He, Xiaoke Ma, Shuyang Yu, Rupali R Bhave, Steven R Lentz, Kai Tan, Monica L Guzman, Chen Zhao, Hai-Hui Xue
Effective treatment of chronic myelogenous leukemia (CML) largely depends on the eradication of CML leukemic stem cells (LSCs). We recently showed that CML LSCs depend on Tcf1 and Lef1 factors for self-renewal. Using a connectivity map, we identified prostaglandin E1 (PGE1) as a small molecule that partly elicited the gene expression changes in LSCs caused by Tcf1/Lef1 deficiency. Although it has little impact on normal hematopoiesis, we found that PGE1 treatment impaired the persistence and activity of LSCs in a pre-clinical murine CML model and a xenograft model of transplanted CML patient CD34(+) stem/progenitor cells...
September 7, 2017: Cell Stem Cell
https://www.readbyqxmd.com/read/28815657/celecoxib-inhibits-osteoblast-differentiation-independent-of-cyclooxygenase-activity
#17
Atsushi Matsuyama, Sen Higashi, Saori Tanizaki, Takahiko Morotomi, Ayako Washio, Tomoko Ohsumi, Chiaki Kitamura, Hiroshi Takeuchi
Non-steroidal anti-inflammatory drugs (NSAIDs) exert their effects primarily by inhibiting the activity of cyclooxygenase (COX), thus suppressing prostaglandin synthesis. Some NSAIDs are known to perform functions other than pain control, such as suppressing tumour cell growth, independent of their COX-inhibiting activity. To identify NSAIDs with COX-independent activity, we examined various NSAIDs for their ability to inhibit osteoblastic differentiation using the mouse pre-osteoblast cell line MC3T3-E1. Only celecoxib and valdecoxib strongly inhibited osteoblastic differentiation, and this effect was not correlated with COX-inhibiting activity...
August 16, 2017: Clinical and Experimental Pharmacology & Physiology
https://www.readbyqxmd.com/read/28770093/the-clinical-practice-guideline-for-the-management-of-ards-in-japan
#18
Satoru Hashimoto, Masamitsu Sanui, Moritoki Egi, Shinichiro Ohshimo, Junji Shiotsuka, Ryutaro Seo, Ryoma Tanaka, Yu Tanaka, Yasuhiro Norisue, Yoshiro Hayashi, Eishu Nango
BACKGROUND: The Japanese Society of Respiratory Care Medicine and the Japanese Society of Intensive Care Medicine provide here a clinical practice guideline for the management of adult patients with ARDS in the ICU. METHOD: The guideline was developed applying the GRADE system for performing robust systematic reviews with plausible recommendations. The guideline consists of 13 clinical questions mainly regarding ventilator settings and drug therapies (the last question includes 11 medications that are not approved for clinical use in Japan)...
2017: Journal of Intensive Care
https://www.readbyqxmd.com/read/28754351/the-alpha-7-nicotinic-acetylcholine-receptor-is-involved-in-a-direct-inhibitory-effect-of-nicotine-on-gnrh-release-in-vitro-studies
#19
Elio Messi, Federica Pimpinelli, Valentina Andrè, Chiara Rigobello, Cecilia Gotti, Roberto Maggi
The activation of nicotinic cholinergic receptors (nAChR) inhibits the reproductive axis; however, it is not clear whether nicotine may directly modulate the release of hypothalamic gonadotropin-releasing hormone (GnRH). Experiments carried out in GT1-1 immortalized GnRH neurons reveal the presence of a single class of high affinity α4β2 and α7 nAchR subtypes. The exposure of GT1-1 cells to nicotine does not modify the basal accumulation of GnRH. However, nicotine was found to modify GnRH pulsatility in perifusion experiments and inhibits, the release of GnRH induced by prostaglandin E1 or by K(+)-induced cell depolarization; these effects were reversed by D-tubocurarine and α-bungarotoxin...
July 25, 2017: Molecular and Cellular Endocrinology
https://www.readbyqxmd.com/read/28746468/ischemic-preconditioning-vs-adenosine-vs-prostaglandin-e1-for-protection-against-liver-ischemia-reperfusion-injury
#20
M Radojkovic, M Stojanovic, G Stanojevic, D Radojkovic, J Gligorijevic, I Ilic, N Stojanovic
Ischemia/reperfusion injury is still a major cause of morbidity and mortality during liver surgery and transplantation. A variety of surgical and pharmacological therapeutic strategies have been investigated to minimize the effects of ischemia/reperfusion. The aim of our study was to analyze and compare preventive influences of ischemic preconditioning, adenosine and prostaglandin E1 in the experimental model of hepatic ischemia/reperfusion injury. Adult chinchilla rabbits were divided into four groups: 10 rabbits subjected to liver ischemic preconditioning (3-min period of inflow occlusion followed by a 5-min period of reperfusion) followed by 45 min of Pringle maneuver; 10 rabbits subjected to pre-treatment with intraportal injection of adenosine followed by 45 min of Pringle maneuver; 10 rabbits subjected to pre-treatment with intraportal injection of prostaglandin E1 followed by 45 min of Pringle maneuver; and control group of 10 rabbits subjected to 45 min of inflow liver ischemia without any preconditioning...
July 20, 2017: Brazilian Journal of Medical and Biological Research, Revista Brasileira de Pesquisas Médicas e Biológicas
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