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Celecoxib

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https://www.readbyqxmd.com/read/28344594/articular-inflammation-induced-by-an-enzymatically-inactive-lys49-phospholipase-a2-activation-of-endogenous-phospholipases-contributes-to-the-pronociceptive-effect
#1
Renata Gonçalves Dias, Sandra Coccuzzo Sampaio, Morena Brazil Sant'Anna, Fernando Queiroz Cunha, José María Gutiérrez, Bruno Lomonte, Yara Cury, Gisele Picolo
BACKGROUND: Arthritis is a set of inflammatory conditions that induce aching, stiffness, swelling, pain and may cause functional disability with severe consequences to the patient's lives. These are multi-mediated pathologies that cannot be effectively protected and/or treated. Therefore, the aim of this study was to establish a new model of acute arthritis, using a Lys49-PLA2 (Bothrops asper myotoxin II; MT-II) to induce articular inflammation. METHODS: The articular inflammation was induced by MT-II (10 μg/joint) injection into the left tibio-tarsal or femoral-tibial-patellar joints...
2017: Journal of Venomous Animals and Toxins Including Tropical Diseases
https://www.readbyqxmd.com/read/28344559/cyclooxygenase-2-inhibition-limits-angiotensin-ii-induced-dna-oxidation-and-protein-nitration-in-humans
#2
Vincent Pialoux, Marc J Poulin, Brenda R Hemmelgarn, Daniel A Muruve, Erica N Chirico, Camille Faes, Darlene Y Sola, Sofia B Ahmed
Compared to other cyclooxygenase-2 inhibitors, celecoxib is associated with a lower cardiovascular risk, though the mechanism remains unclear. Angiotensin II is an important mediator of oxidative stress in the pathophysiology of vascular disease. Cyclooxygenase-2 may modify the effects of angiotensin II though this has never been studied in humans. The purpose of the study was to test the effects of selective cyclooxygenase-2 inhibition on plasma measures of oxidative stress, the vasoconstrictor endothelin-1, and nitric oxide metabolites, both at baseline and in respose to Angiotensin II challenge in healthy humans...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28342204/the-ep4-antagonist-l-161-982-induces-apoptosis-cell-cycle-arrest-and-inhibits-prostaglandin-e2-induced-proliferation-in-oral-squamous-carcinoma-tca8113-cells
#3
Xiaohui Li, Bo Yang, Guoxu Han, Weizhong Li
BACKGROUND: Recent studies suggest that cyclooxygenase 2 (COX-2) inhibitors may enhance the toxic effects of anticancer drugs on tumor cells, including oral squamous cell carcinoma(OSCC), but its long-term use can cause side effects such as stomach ulcers and myocardial infarction. Our aim was to investigate proliferative effects of a downstream product of COX-2, prostaglandin E2(PGE2), in human oral squamous carcinoma cell line Tca8113 and explore the effects of PGE2 receptors, especially EP4 receptor, on the growth of Tca8113 cells...
March 25, 2017: Journal of Oral Pathology & Medicine
https://www.readbyqxmd.com/read/28339999/bone-curvature-changes-can-predict-the-impact-of-treatment-on-cartilage-volume-loss-in-knee-osteoarthritis-data-from-a-2-year-clinical-trial
#4
Jean-Pierre Raynauld, Jean-Pierre Pelletier, Philippe Delorme, Pierre Dodin, François Abram, Johanne Martel-Pelletier
Objectives.: Knee bone curvature assessed by MRI was associated with OA cartilage loss. A recent knee OA trial demonstrated the superiority of chondroitin sulfate over celecoxib (comparator) at reducing cartilage volume loss (CVL) in the medial compartment (condyle). The main objectives were to identify which baseline bone curvature regions of interest (BCROI) best associated with CVL and investigate whether baseline BCROI and 2-year change are correlated with the protective effect of chondroitin sulphate on CVL...
March 1, 2017: Rheumatology
https://www.readbyqxmd.com/read/28333299/bilateral-breast-reduction-without-opioid-analgesics-a-comparative-study
#5
Fereydoun Don Parsa, Justin Cheng, Brad Stephan, Nikki Castel, Leslie Kim, Daniel Murariu, Alan A Parsa
Background: Breast reduction has traditionally been performed under general anesthesia with adjunct opioid use. However, opioids are associated with a wide variety of adverse effects, including nausea, vomiting, constipation, postoperative sedation, dizziness, and addiction. Objectives: This study compares bilateral breast reduction using a multimodal opioid-free pain management regimen vs traditional general anesthesia with adjunct opioids. Methods: A total of 83 female patients were enrolled in this study...
March 3, 2017: Aesthetic Surgery Journal
https://www.readbyqxmd.com/read/28331155/therapeutic-efficacy-of-nonsteroidal-anti-inflammatory-drug-therapy-versus-exercise-therapy-in-patients-with-chronic-nonspecific-low-back-pain-a-prospective-study
#6
Naoto Takahashi, Jun-Ichi Omata, Masumi Iwabuchi, Hironari Fukuda, Osamu Shirado
Therapy for chronic, nonspecific low back pain is mainly conservative: medication and/or exercise. Pharmacotherapy, however, has side effects, and the quantities of concomitant drugs in older persons require attention. Although exercise promises improved function, its use to alleviate pain is controversial. Thus, we compared the efficacy of pharmacotherapy versus exercise for treating chronic nonspecific low back pain. The pharmacotherapy group (n=18: 8 men, 10 women) were prescribed celecoxib monotherapy...
March 22, 2017: Fukushima Journal of Medical Science
https://www.readbyqxmd.com/read/28300506/adding-celecoxib-with-or-without-zoledronic-acid-for-hormone-na%C3%A3-ve-prostate-cancer-long-term-survival-results-from-an-adaptive-multiarm-multistage-platform-randomized-controlled-trial
#7
Malcolm D Mason, Noel W Clarke, Nicholas D James, David P Dearnaley, Melissa R Spears, Alastair W S Ritchie, Gerhardt Attard, William Cross, Rob J Jones, Christopher C Parker, J Martin Russell, George N Thalmann, Francesca Schiavone, Estelle Cassoly, David Matheson, Robin Millman, Cyrill A Rentsch, Jim Barber, Clare Gilson, Azman Ibrahim, John Logue, Anna Lydon, Ashok D Nikapota, Joe M O'Sullivan, Emilio Porfiri, Andrew Protheroe, Narayanan Nair Srihari, David Tsang, John Wagstaff, Jan Wallace, Catherine Walmsley, Mahesh K B Parmar, Matthew R Sydes
Purpose Systemic Therapy for Advanced or Metastatic Prostate Cancer: Evaluation of Drug Efficacy is a randomized controlled trial using a multiarm, multistage, platform design. It recruits men with high-risk, locally advanced or metastatic prostate cancer who were initiating long-term hormone therapy. We report survival data for two celecoxib (Cel)-containing comparisons, which stopped accrual early at interim analysis on the basis of failure-free survival. Patients and Methods Standard of care (SOC) was hormone therapy continuously (metastatic) or for ≥ 2 years (nonmetastatic); prostate (± pelvic node) radiotherapy was encouraged for men without metastases...
March 13, 2017: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
https://www.readbyqxmd.com/read/28300223/role-of-cyclooxygenase-2-on-intermittent-hypoxia-induced-lung-tumor-malignancy-in-a-mouse-model-of-sleep-apnea
#8
Noelia Campillo, Marta Torres, Antoni Vilaseca, Paula Naomi Nonaka, David Gozal, Jordi Roca-Ferrer, César Picado, Josep Maria Montserrat, Ramon Farré, Daniel Navajas, Isaac Almendros
An adverse role for obstructive sleep apnea (OSA) in cancer epidemiology and outcomes has recently emerged from clinical and animal studies. In animals, intermittent hypoxia (IH) mimicking OSA promotes tumor malignancy both directly and via host immune alterations. We hypothesized that IH could potentiate cancer aggressiveness through activation of the cyclooxygenase-2 (COX-2) pathway and the concomitant increases in prostaglandin E2 (PGE2). The contribution of the COX-2 in IH-induced enhanced tumor malignancy was assessed using celecoxib as a COX-2 specific inhibitor in a murine model of OSA bearing Lewis lung carcinoma (LLC1) tumors...
March 16, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28290947/widespread-use-of-prescription-nonsteroidal-anti-inflammatory-drugs-among-u-s-army-active-duty-soldiers
#9
Leila A Walker, Edward J Zambraski, Roger F Williams
INTRODUCTION: Nonsteroidal anti-inflammatory drugs (NSAIDs) are commonly used to treat pain and inflammation by inhibiting prostaglandin synthesis. There is a high incidence of musculoskeletal injuries in the military, which would validate the widespread use of NSAIDs. This study determined the amount and specific types of NSAIDs being prescribed to U.S. Army active duty soldiers. METHODS AND MATERIALS: This study was a quantitative study which utilized an existing database of de-identified data; therefore, institutional review board approval was not required...
March 2017: Military Medicine
https://www.readbyqxmd.com/read/28288823/cadmium-induced-il-6-and-il-8-expression-and-release-from-astrocytes-are-mediated-by-mapk-and-nf-%C3%AE%C2%BAb-pathways
#10
Suttinee Phuagkhaopong, Dusadee Ospondpant, Thitima Kasemsuk, Nathawut Sibmooh, Sunhapas Soodvilai, Christopher Power, Pornpun Vivithanaporn
Chronic exposure to cadmium has been linked to brain cancers, learning disabilities and memory deficits. Previous studies of cadmium toxicity in the central nervous system report cadmium induces oxidative stress in neurons and astrocytes. In the peripheral system, cadmium promotes interleukin-6 (IL-6) and IL-8 production and release. Elevation of IL-6 expression is linked to the pathogenesis of neurodegenerative diseases and astrogliosis. IL-8 plays a role in angiogenesis of gliomas and neurodegenerative diseases...
March 10, 2017: Neurotoxicology
https://www.readbyqxmd.com/read/28285845/a-stratified-randomized-double-blind-phase-ii-trial-of-celecoxib-for-treating-patients-with-cervical-intraepithelial-neoplasia-the-potential-predictive-value-of-vegf-serum-levels-an-nrg-oncology-gynecologic-oncology-group-study
#11
Janet S Rader, Michael W Sill, Jan H Beumer, Heather A Lankes, Doris Mangiaracina Benbrook, Francisco Garcia, Connie Trimble, J Tate Thigpen, Richard Lieberman, Rosemary E Zuna, Charles A Leath, Nick M Spirtos, John Byron, Premal H Thaker, Shashikant Lele, David Alberts
PURPOSE: To examine the effect of celecoxib on cervical intraepithelial neoplasia 3 (CIN 3). This is a NRG Oncology/Gynecologic Oncology Group study with translational biomarkers. PATIENTS AND METHODS: Patients with CIN 3 were randomized to celecoxib 400mg once daily (67 patients) or placebo (63 patients) for 14-18weeks. The primary outcome measure was histologic regression. A test of equal probabilities of success between two therapies was conducted, using Fisher's Exact Test at alpha=10% and 90% power when the treatment arm boosted the probability of success by 30%...
March 9, 2017: Gynecologic Oncology
https://www.readbyqxmd.com/read/28284805/novel-2-phenyl-4-5-6-7-tetrahydro-b-benzothiophene-analogues-as-selective-cox-2-inhibitors-design-synthesis-anti-inflammatory-evaluation-and-molecular-docking-studies
#12
Chetan K Khatri, Krishna S Indalkar, Chandragouda R Patil, Sameer N Goyal, Ganesh U Chaturbhuj
A series of 2-phenyl-4,5,6,7-tetrahydro[b]benzothiophene derivatives were synthesized and evaluated for in vitro COX inhibitory potential. Within the series, compounds 4a, 4j, 4k, and 4q were identified as potential and selective COX-2 inhibitors with COX-2 IC50 in 0.31-1.40µM range; COX-2 selectivity index (SI)=48.8-183.8 range and they showed percent PGE-2 inhibitory activity in the range of 25.4-46.9. Further, compounds 4a, 4j, 4k and 4q displayed potent anti-inflammatory activity with percentage rise in paw volume ranging from 21...
March 8, 2017: Bioorganic & Medicinal Chemistry Letters
https://www.readbyqxmd.com/read/28283800/blocking-cox-2-induces-apoptosis-and-inhibits-cell-proliferation-via-the-akt-survivin-and-akt-id3-pathway-in-low-grade-glioma
#13
Aya Sato, Yoshifumi Mizobuchi, Kohei Nakajima, Kenji Shono, Toshitaka Fujihara, Teruyoshi Kageji, Keiko Kitazato, Kazuhito Matsuzaki, Hideo Mure, Kazuyuki Kuwayama, Akiko Sumi, Hideyuki Saya, Oltea Sampetrean, Shinji Nagahirao
Approximately half of surgically-treated patients with low-grade-glioma (LGG) suffer recurrence or metastasis. Currently there is no effective drug treatment. While the selective COX-2 inhibitor celecoxib showed anti-neoplastic activity against several malignant tumors, its effects against LGG remain to be elucidated. Ours is the first report that the expression level of COX-2 in brain tissue samples from patients with LGG and in LGG cell lines is higher than in the non-neoplastic region and in normal brain cells...
March 10, 2017: Journal of Neuro-oncology
https://www.readbyqxmd.com/read/28282799/celecoxib-erlotinib-combination-treatment-enhances-radiosensitivity-in-a549-human-lung-cancer-cell
#14
Jian Sun, Ning-Bo Liu, Hong-Qing Zhuang, Lun-Jun Zhao, Zhi-Yong Yuan, Ping Wang
BACKGROUND: Radiosensitivity by blocking the epidermal growth factor receptor and cyclooxygenase-2 pathways with erlotinib and celecoxib in A549 human lung cancer cell was investigated. METHODS: MTT assays were used to detect the antitumor effects of erlotinib and celecoxib in A549 cells. Colony formation assays were used to evaluate the antitumor effects. Flow cytometry analysis was used to assess the cell cycle and cell apoptosis, and western blotting analysis was performed to evaluate the expression of AKT and phosphorylated AKT...
March 3, 2017: Cancer Biomarkers: Section A of Disease Markers
https://www.readbyqxmd.com/read/28279941/long-term-outcome-of-the-remagus-02-trial-a-multicenter-randomised-phase-ii-trial-in-locally-advanced-breast-cancer%C3%A2-patients-treated-with-neoadjuvant-chemotherapy-with-or-without-celecoxib-or-trastuzumab-according-to-her2-status
#15
Sylvie Giacchetti, Anne-Sophie Hamy, Suzette Delaloge, Etienne Brain, Frédérique Berger, Brigitte Sigal-Zafrani, Marie-Christine Mathieu, Philippe Bertheau, Jean Marc Guinebretière, Mahasti Saghatchian, Florence Lerebours, Chafouny Mazouni, Olivier Tembo, Marc Espié, Fabien Reyal, Michel Marty, Bernard Asselain, Jean-Yves Pierga
BACKGROUND: The REMAGUS-02 multicenter randomised phase II trial showed that the addition to neoadjuvant chemotherapy (NAC) of trastuzumab in patients with localised HER2-positive breast cancer (BC) increased the pathological complete response (pCR) rate and that the addition of celecoxib in HER2-negative cases did not increase the pCR rate. We report here the long-term follow-up results for disease-free survival (DFS) and overall survival (OS). PATIENTS AND METHODS: From 2004 to 2007, 340 stage II-III BC patients were randomly assigned to receive neoadjuvant EC-T (four cycles of epirubicin-cyclophosphamide followed by four cycles of docetaxel) +/- celecoxib in HER2-negative cases (n = 220) and ± trastuzumab in HER2-positive cases (n = 120)...
March 6, 2017: European Journal of Cancer
https://www.readbyqxmd.com/read/28274156/folic-acid-ameliorates-celecoxib-cardiotoxicity-in-a-doxorubicin-heart-failure-rat-model
#16
Shafique Ahmad, Bibhu Prasad Panda, Kanchan Kohli, Mohammad Fahim, Kiran Dubey
CONTEXT: The cardiotoxic effect of selective cyclo-oxygenase-2 inhibitors is well known. While rofecoxib and valdecoxib have been withdrawn, celecoxib remains on the market. Folic acid, a naturally occurring vitamin, has been shown to reduce myocardial ischemia and post-reperfusion injury in rats. OBJECTIVE: This study examined the cardiac effects of celecoxib and folic acid on doxorubicin-induced cardiomyopathy in rats. MATERIALS AND METHODS: Cardiomyopathy was induced in male Wistar rats with six intraperitoneal injections of 2...
December 2017: Pharmaceutical Biology
https://www.readbyqxmd.com/read/28272358/comparison-of-the-sulfonamide-inhibition-profiles-of-the-%C3%AE-and-%C3%AE-carbonic-anhydrases-from-the-pathogenic-bacterium-burkholderia-pseudomallei
#17
Daniela Vullo, Sonia Del Prete, Pietro Di Fonzo, Vincenzo Carginale, W Alexander Donald, Claudiu T Supuran, Clemente Capasso
We have cloned, purified, and characterized a β-carbonic anhydrase (CA, EC 4.2.1.1), BpsCAβ, from the pathogenic bacterium Burkholderia pseudomallei, responsible for the tropical disease melioidosis. The enzyme showed high catalytic activity for the physiologic CO₂ hydration reaction to bicarbonate and protons, with the following kinetic parameters: kcat of 1.6 × 10⁵ s(-1) and kcat/KM of 3.4 × 10⁷ M(-1) s(-1). An inhibition study with a panel of 38 sulfonamides and one sulfamate-including 15 compounds that are used clinically-revealed an interesting structure-activity relationship for the interaction of this enzyme with these inhibitors...
March 7, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28267684/in-vitro-modulation-of-the-behavior-of-adhering-macrophages-by-medications-is-biomaterial-dependent
#18
Lizette Utomo, Geesien S A Boersema, Yves Bayon, Johan F Lange, Gerjo J V M van Osch, Yvonne M Bastiaansen-Jenniskens
After implantation of a biomaterial, an inflammatory response involving macrophages is induced. The behavior of macrophages depends on their phenotype, and by directing macrophage polarization unwanted effects may be avoided. In this study, the possibility to modulate the behavior of macrophages activated by biomaterials was assessed in an in vitro model. Primary human monocytes were seeded on polyethylene terephthalate, polypropylene and polylactic acid yarns, and treated with medications frequently used by patients: rapamycin, dexamethasone, celecoxib or pravastatin...
March 7, 2017: Biomedical Materials
https://www.readbyqxmd.com/read/28263539/celecoxib-is-an-inhibitor-of-enzyme-acetylcholinesterase
#19
Miroslav Pohanka
OBJECTIVES: Celecoxib is a nonsteroidal anti-inflammatory drug inhibiting enzyme cyclooxygenase-2 (COX-2). The drug was introduced in 1990s. In the work presented here, affinity of celecoxib to enzyme acetylcholinesterase (AChE) is inferred. METHODS: Inhibition of human AChE by celecoxib was tested using standard spectrophotometric Ellman´s method and extrapolation of experimental data by Dixon plot. Interaction between AChE and celecoxib was also predicted by molecular docking using Swiss dock software...
December 18, 2016: Neuro Endocrinology Letters
https://www.readbyqxmd.com/read/28260944/a-famciclovir-celecoxib-combination-treatment-is-safe-and-efficacious-in-the-treatment-of-fibromyalgia
#20
William L Pridgen, Carol Duffy, Judy F Gendreau, R Michael Gendreau
OBJECTIVE: Infections and other stressors have been implicated in the development of fibromyalgia. We hypothesized that these stressors could result in recurrent reactivations of latent herpes virus infections, which could lead to the development of fibromyalgia. This study evaluated a famciclovir + celecoxib drug combination (IMC-1), active against suspected herpes virus reactivation and infection, for the treatment of fibromyalgia. METHODS: A total of 143 fibromyalgia patients were enrolled at 12 sites in a 16-week, double-blinded, placebo-controlled proof-of-concept trial...
2017: Journal of Pain Research
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