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https://www.readbyqxmd.com/read/28417056/therapeutic-effect-of-prostaglandin-e1-in-monocrotaline-induced-pulmonary-arterial-hypertension-rats
#1
Jae Chul Lee
Pulmonary arterial hypertension (PAH) is a severe pulmonary vascular disease characterized by sustained increase in pulmonary arterial pressure and excessive thickening and remodeling of distal small pulmonary arteries. During disease progression, PAH include increase in mean pulmonary arterial pressure, right ventricular (RV) enlargement, increased pulmonary vascular resistance, and smooth muscle hypertrophy in pulmonary arterioles. Several anti-PAH therapies targeting various pathways involved in PAH progression have been approved by the Food and Drug Adminstration...
March 2017: Anatomy & Cell Biology
https://www.readbyqxmd.com/read/28414997/successful-treatment-of-nonocclusive-mesenteric-ischemia-after-aortic-valve-replacement-with-continuous-arterial-alprostadil-infusion-a-case-report
#2
Kunio Ogi, Masamitsu Sanui, Yusuke Iizuka, Akinori Aomatsu, Ikue Nakashima, Kohei Hamamoto, Tomohisa Okochi, Alan K Lefor
INTRODUCTION: Nonocclusive mesenteric ischemia (NOMI) after surgery has an extremely poor prognosis with a mortality rate of 30-100%. We report a patient with NOMI following aortic valve replacement who failed to improve despite continuous intra-arterial infusion of papaverine, but was successfully treated with alprostadil (prostaglandin E1 [PGE1]) infusion. PRESENTATION OF CASE: The patient is a 77-year-old man who underwent aortic valve replacement. Due to elevated serum lactate levels five hours after intensive care unit admission, superior mesenteric arteriography was performed, establishing the diagnosis of NOMI...
March 30, 2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/28403095/effects-of-prostaglandin-e1-on-reperfusion-injury-patients-a-meta-analysis-of-randomized-controlled-trials
#3
Houyong Zhu, Xiaoqun Xu, Yu Ding, Liang Zhou, Jinyu Huang
BACKGROUND: Prostaglandin E1 (PGE1) is widely used as a pretreatment for myocardial reperfusion injury in animal experiments. However, the cardioprotective effects of PGE1 in patients have not been established. We performed a meta-analysis to investigate whether PGE1 is cardioprotective, based on the reduction of correlative reperfusion injury events (CRIE), major adverse cardiac events (MACE), and biomarker release in patients with ischemia reperfusion injury. METHODS: The Medline, EMBASE, and Cochrane databases were searched for randomized clinical trials confirming the effects of PGE1...
April 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28384938/misoprostol-induced-convulsion-a-rare-side-effect-of-misoprostol
#4
Nalini Sharma, Rituparna Das, Santa Singh Ahanthem, Kalyani Reddy
Misoprostol, a synthetic prostaglandin E1 has wider application in obstetrics gynaecology. It has been recommended in the prophylaxis and treatment of Post Partum Haemorrhage (PPH) by Federation of Obstetrics and Gynaecology (FIGO), World Health Organisation (WHO) and American College of Obstetrics and Gynaecology (ACOG). It is a very safe drug associated with transient side-effects like fever, chills, nausea, vomiting, diarrhoea and abdominal pain. In the present case report patient had an unusual side effect of hyperpyrexia and convulsion after use of misoprostol for prophylaxis against PPH...
February 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28381867/correlation-between-peak-systolic-velocity-and-diameter-of-cavernosal-arteries-in-flaccid-versus-dynamic-state-for-the-evaluation-of-erectile-dysfunction
#5
R Souper, J Hartmann, M Alvarez, I Fuentes, G Astroza, M Marconi
Previous studies have suggested that parameters measured in the flaccid state (FS) by penile duplex Doppler ultrasound (PDDU) may predict the outcome after intracavernosal injection (ICI). The aim of this study was to evaluate the association between peak systolic velocity (PSV) and cavernosal artery diameter (CAD) in the FS with PSV and clinical assessment of erection hardness (CAEH) after ICI. Fifty patients who underwent PDDU for erectile dysfunction were prospectively enrolled. PSV and CAD were measured in FS and then correlated with PSV and CAEH after ICI of 20 μg of e1 prostaglandin (PGe1)...
April 6, 2017: International Journal of Impotence Research
https://www.readbyqxmd.com/read/28372990/neurotoxic-mechanisms-by-which-the-usp14-inhibitor-iu1-depletes-ubiquitinated-proteins-and-tau-in-rat-cerebral-cortical-neurons-relevance-to-alzheimer-s-disease
#6
Magdalena J Kiprowska, Anna Stepanova, Dustin R Todaro, Alexander Galkin, Arthur Haas, Scott M Wilson, Maria E Figueiredo-Pereira
In Alzheimer's disease proteasome activity is reportedly downregulated, thus increasing it could be therapeutically beneficial. The proteasome-associated deubiquitinase USP14 disassembles polyubiquitin-chains, potentially delaying proteasome-dependent protein degradation. We assessed the protective efficacy of inhibiting or downregulating USP14 in rat and mouse (Usp14(axJ)) neuronal cultures treated with prostaglandin J2 (PGJ2). IU1 concentrations (HIU1>25μM) reported by others to inhibit USP14 and be protective in non-neuronal cells, reduced PGJ2-induced Ub-protein accumulation in neurons...
March 31, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28362714/iloprost-prostaglandin-e1-and-papaverine-relax-human-mesenteric-arteries-with-similar-potency
#7
Christoph Mahlke, Jens-Peter Kühn, Birger Mensel, André Schreiber, Annett Juretzko, Antje Steinbach, Olaf Grisk
OBJECTIVE: Non-occlusive mesenteric ischemia (NOMI) is accompanied by mesenteric artery spasms that are at least in part due to endothelin system activation. Acute treatment includes intra-arterial infusion of vasodilators such as iloprost, prostaglandin E1 (PGE1) and papaverine. Their effectiveness is not well characterized in human mesenteric arteries. We directly compared their potency to relax isolated human mesenteric arteries. To explore the potential of Rock inhibition to treat mesenteric artery spasms, we tested if endothelin-1 (ET-1)-induced mesenteric artery constrictions depend rho kinase (Rock)...
March 30, 2017: Shock
https://www.readbyqxmd.com/read/28259984/attenuation-of-prostaglandin-e1%C3%A2-induced-osteoprotegerin-synthesis-in-osteoblasts-by-normoxic-hif-inducers
#8
Gen Kuroyanagi, Haruhiko Tokuda, Naohiro Yamamoto, Shingo Kainuma, Kazuhiko Fujita, Reou Ohguchi, Rie Matsushima-Nishiwaki, Osamu Kozawa, Takanobu Otsuka
Mimosine, which is a natural plant amino acid present in the Leucaena genus, is able to induce hypoxia‑inducible factors (HIFs). Previous evidence has indicated that HIF regulates angiogenesis‑osteogenesis coupling in bone metabolism, and it has previously been reported that mimosine inhibits prostaglandin (PG)F2α‑induced osteoprotegerin (OPG) synthesis without affecting interleukin‑6 (IL‑6) production in osteoblast‑like MC3T3‑E1 cells. In addition, PGE1 has been demonstrated to induce OPG synthesis via activation of p38 mitogen‑activated protein (MAP) kinase and stress‑activated protein kinase/c‑Jun N‑terminal kinase (SAPK/JNK) in these cells, and PGE1 stimulates IL‑6 production via the activation of protein kinase A...
April 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28237700/prostaglandin-e1-reduces-the-keratinocyte-toxicity-of-sorafenib-by-maintaining-signal-transducer-and-activator-of-transcription-3-stat3-activity-and-enhancing-the-camp-response-element-binding-protein-creb-activity
#9
Hiroaki Shichiri, Kazuhiro Yamamoto, Maya Tokura, Takahiro Ishida, Atsushi Uda, Toshinori Bito, Chikako Nishigori, Tsutomu Nakagawa, Takeshi Hirano, Ikuko Yano, Midori Hirai
Hand-foot skin reaction (HFSR) is a common side effect of multiple tyrosine kinase inhibitors (mTKIs). HFSR can necessitate dose reductions or interruption of therapy owing to its negative effect on the quality of life. Therefore, effective use of mTKIs requires measures to prevent HFSR. We evaluated the effect of prostaglandin E1 (PGE1) on HFSR, because PGE1 is already used to treat bed sores and skin ulcers and has established angiogenic and antiproliferative effects in keratinocytes. We found that the pathogenesis of sorafenib-induced HFSR is characterized by a decrease in levels of a phosphorylated signal transducer and activator of transcription 3 (STAT3)...
April 1, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28237084/identification-and-profiling-of-specialized-pro-resolving-mediators-in-human-tears-by-lipid-mediator-metabolomics
#10
Justin T English, Paul C Norris, Robin R Hodges, Darlene A Dartt, Charles N Serhan
Specialized pro-resolving mediators (SPM), e.g. Resolvin D1, Protectin D1, Lipoxin A₄, and Resolvin E1 have each shown to be active in ocular models reducing inflammation. In general, SPMs have specific agonist functions that stimulate resolution of infection and inflammation in animal disease models. The presence and quantity of SPM in human emotional tears is of interest. Here, utilizing a targeted LC-MS-MS metabololipidomics based approach we document the identification of pro-inflammatory (Prostaglandins and Leukotriene B₄) and pro-resolving lipid mediators (D-series Resolvins, Protectin D1, and Lipoxin A₄) in human emotional tears from 12 healthy individuals...
February 2017: Prostaglandins, Leukotrienes, and Essential Fatty Acids
https://www.readbyqxmd.com/read/28203503/prostaglandin-e1-increases-microcirculation-in-random-pattern-flaps-on-rats-measured-with-laser-doppler-perfusion-imaging
#11
Kim Alexander Tønseth, Christian Sneistrup, Thomas Moe Berg
BACKGROUND: Reconstructive procedures with pedicled and free flaps are associated with a risk of ischemia. Prostaglandin E1 (PGE1) is a hormone-like substance with known antiischemic and tissue-protective effects. The aim of this study was to evaluate the effect of PGE1 on the microcirculation in random pattern skin flaps on rats. METHODS: Twenty-four rats were divided into 2 groups: an intervention group given PGE1 for 6 hours and a control group given saline. The flap (2 × 10 cm) was created on the back of the rats, and the microcirculation was monitored with laser Doppler perfusion imaging in 5 different zones (1, proximal; 5, distal) before surgery and after 60, 180, and 360 minutes postoperatively...
January 2017: Plastic and Reconstructive Surgery. Global Open
https://www.readbyqxmd.com/read/28190453/an-empirical-vs-risk-based-approach-algorithm-to-intracavernosal-injection-therapy-a-prospective-study
#12
Helen Levey Bernie, Robert Segal, Brian Le, Arthur Burnett, Trinity J Bivalacqua
INTRODUCTION: Intracavernosal injection (ICI) therapy is widely used for the treatment of erectile dysfunction (ED). Its use in practice is largely empirical and has not been validated with evidence-based approaches. AIM: To compare two strategies for ICI, specifically a risk-based approach and an empiric-based approach, and assess the efficacy, patient satisfaction, and complication rates of the two treatment approaches. METHODS: After obtaining approval from the institutional review board, a prospective database of patients enrolled in the ICI program at the Johns Hopkins Hospital (Baltimore, MD, USA) from May 2012 through May 2014 was amassed...
March 2017: Sexual Medicine
https://www.readbyqxmd.com/read/28178400/levels-of-l-arginine-and-l-citrulline-in-patients-with-erectile-dysfunction-of-different-etiology
#13
A Barassi, M M Corsi Romanelli, R Pezzilli, C A L Damele, L Vaccalluzzo, G Goi, N Papini, G M Colpi, L Massaccesi, G V Melzi d'Eril
Nitric oxide is a physiologic signal essential to penile erection. l-citrulline (l-Cit) is converted into l-arginine (l-Arg), the precursor from which nitric oxide is generated. The level of l-Arg and l-Cit in the field of male sexual function remains relatively underexplored. The aim of the study was to evaluate the level of serum l-Arg and of l-Cit in a group of patients with erectile dysfunction. Diagnosis and severity of erectile dysfunction was based on the IIEF-5 and its etiology was classified as arteriogenic (A-ED), borderline (BL-ED), and non-arteriogenic (NA-ED) with penile echo-color-Doppler in basal condition and after intracaversous injection of prostaglandin E1...
March 2017: Andrology
https://www.readbyqxmd.com/read/28163121/-epigallocatechin-gallate-synergistically-potentiates-prostaglandin-e2-stimulated-osteoprotegerin-synthesis-in-osteoblasts
#14
Gen Kuroyanagi, Haruhiko Tokuda, Naohiro Yamamoto, Shingo Kainuma, Kazuhiko Fujita, Reou Ohguchi, Tetsu Kawabata, Go Sakai, Rie Matsushima-Nishiwaki, Atsushi Harada, Osamu Kozawa, Takanobu Otsuka
(-)-Epigallocatechin gallate (EGCG), the most abundant flavonoid in green tea, and chlorogenic acid, the main polyphenol found in coffee, attract significant attention owing to health benefits. We have previously demonstrated that prostaglandin E2 (PGE2) stimulates osteoprotegerin synthesis through the activation of p38 mitogen-activated protein (MAP) kinase and stress-activated protein kinase/c-Jun N-terminal kinase (SAPK/JNK) in osteoblast-like MC3T3-E1 cells. In the present study, we investigated the effects of EGCG or chlorogenic acid on the PGE2-stimulated osteoprotegerin synthesis in MC3T3-E1 cells...
January 2017: Prostaglandins & Other Lipid Mediators
https://www.readbyqxmd.com/read/28124089/evening-primrose-oil-or-forskolin-ameliorates-celecoxib-enhanced-upregulation-of-tissue-factor-expression-in-mice-subjected-to-lipopolysaccharide-induced-endotoxemia
#15
Sarah M Mosaad, Sawsan A Zaitone, Amal A M Ahmed, Dina M Abo-Elmatty, Amani A El-Baz, Yasser M Moustafa
Celecoxib, a selective cyclooxygenase-2 inhibitor, produces thrombotic events in patients predisposed to cardiovascular risk factors. One theory reported an increase in endothelial expression of tissue factor (TF) as a predisposing factor. This work explored the effect of evening primrose oil (EPO), a source of prostaglandin E1, and forskolin (a cyclic adenosine monophosphate stimulator) against the prothrombotic effect of celecoxib in mice. Lipopolysaccharide mouse model of endotoxemia was used to induce an upregulation of TF activity...
January 26, 2017: Naunyn-Schmiedeberg's Archives of Pharmacology
https://www.readbyqxmd.com/read/28121679/effects-of-prostaglandin-e1-on-patients-undergoing-major-gastrointestinal-surgery
#16
Fabao Hao, Hongjie Guo, Jia Zhong, Qiankun Geng, Yang Yang, Bailin Chen, Chunbao Guo
OBJECTIVE: The aim of this study was to investigate the clinical effects of prostaglandin E1 (PGE1) in patients who underwent surgery for gastrointestinal (GI) trauma, perforation, or obstruction. BACKGROUND: PGE1 is thought to enhance intestinal blood supply and reduce GI complications during the postoperative period. METHODS: The medical records of 889 patients undergoing major GI surgery were reviewed retrospectively. Propensity score matching was performed to adjust for any baseline differences...
January 24, 2017: Annals of Surgery
https://www.readbyqxmd.com/read/28025009/peri-operative-care-for-patients-undergoing-lymphaticovenular-anastomosis-a-systematic-review
#17
REVIEW
Harm Winters, Hanneke J P Tielemans, Philippe N Sprangers, Dietmar J O Ulrich
BACKGROUND: Lymphaticovenular anastomosis (LVA) is a supermicrosurgical procedure that involves the anastomosis of a functional lymphatic channel to a venule. Although peri-operative care might be an important contributor to the success of this technique, evidence about optimal peri-operative care seems limited. This review aims to summarize the peri-operative methods used by authors reporting on LVA. METHODS: A systematic search of the literature was performed according to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines...
February 2017: Journal of Plastic, Reconstructive & Aesthetic Surgery: JPRAS
https://www.readbyqxmd.com/read/27932173/a-case-report-of-severe-hepatic-artery-vasospasm-induced-by-hepatic-arterial-buffer-response-after-liver-transplantation
#18
Y Hiraki, K Uchida, S Nishida, D M Levi, G Selvaggi, A Tekin, J Fan, T Froud, A G Tzakis
The management of severe hepatic artery vasospasm soon after liver transplantation (LT) is challenging because it can lead to hepatic artery thrombosis and subsequent graft failure. A 61-year-old man with hepatitis C cirrhosis and portal vein thrombosis received a deceased donor LT. On postoperative day 1, Doppler ultrasonography revealed a high-resistance waveform in the hepatic artery. Angiography showed severe vasospasm of the donor hepatic artery on postoperative day 3. Strong hepatic arterial buffer response (HABR) was considered for this etiology due to high portal vein velocity...
November 2016: Transplantation Proceedings
https://www.readbyqxmd.com/read/27930430/w1-a-novel-oral-antiplatelet-agent-with-less-resistance-than-clopidogrel
#19
Pengxin Ge, Li Du, Chunguang Han, Hui Li, Yanguo Feng, Jie Han, Zhen Wang, Liangzhong Xiong, Meiru Yuan, Yongxue Liu
Clopidogrel is a clinical antiplatelet agent, about which there are major concerns because its antiplatelet efficiency decreases with insufficient metabolic activation, leading to "clopidogrel resistance." We aimed to determine the antiplatelet effects of W1, a novel molecule composed of 2-O-clopidogrel and aspirin (1:1 ratio), on platelet aggregation ex vivo and thrombus formation in vivo, and its susceptibility to "clopidogrel resistance" in combination with other therapies in rats. Platelets were prepared, and an arteriovenous shunt thrombosis model was established using Wistar rats to measure platelet aggregation and thrombus formation, respectively...
November 24, 2016: Journal of Cardiovascular Pharmacology
https://www.readbyqxmd.com/read/27928427/alprostadil-cream-in-the-treatment-of-erectile-dysfunction-clinical-evidence-and-experience
#20
REVIEW
Béatrice Cuzin
Erectile dysfunction (ED) is a very common disorder with a deep impact on quality of life on both patients and partners. Several options are available for treating ED: oral pharmacotherapy with phosphodiesterase 5 (PDE5) inhibitors currently represents the first-line option for many patients with ED. Alprostadil, a prostaglandin, has been marketed for many years as a urethral stick and an intracavernous injection for the treatment of ED. It is now available in the form of a cream (Vitaros/Virirec), a noninvasive treatment which combines an active drug (alprostadil, a synthetic prostaglandin E1) with a skin enhancer improving its local absorption directly at the site of action...
August 2016: Therapeutic Advances in Urology
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