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https://www.readbyqxmd.com/read/28333087/magnetically-bioprinted-human-myometrial-3d-cell-rings-as-a-model-for-uterine-contractility
#1
Glauco R Souza, Hubert Tseng, Jacob A Gage, Arunmani Mani, Pujan Desai, Fransisca Leonard, Angela Liao, Monica Longo, Jerrie S Refuerzo, Biana Godin
Deregulation in uterine contractility can cause common pathological disorders of the female reproductive system, including preterm labor, infertility, inappropriate implantation, and irregular menstrual cycle. A better understanding of human myometrium contractility is essential to designing and testing interventions for these important clinical problems. Robust studies on the physiology of human uterine contractions require in vitro models, utilizing a human source. Importantly, uterine contractility is a three-dimensionally (3D)-coordinated phenomenon and should be studied in a 3D environment...
March 23, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28332266/11-12-epoxyeicosatrienoic-acid-induces-vasodilator-response-in-the-rat-perfused-mesenteric-vasculature
#2
S M Bihzad, M H M Yousif
Epoxyeicosatrienoic acids (EETs) are endogenous ligands that undergo hydrolysis by soluble epoxide hydrolase (sEH). The responses of 11, 12-EET in comparison with other vasodilator agonists including carbachol and sodium nitroprusside (SNP) were investigated. The effect of 1-cyclohexyl-3-dodecyl urea (CDU), a sEH, was tested on the vasodilator effect induced by 11, 12-EET in the perfused mesenteric beds isolated from normo-glycaemic and type-1 STZ-diabetic rats. In the perfused mesenteric beds of control and diabetic animals, 11, 12-EET produced vasodilation in a dose-dependent manner...
January 2017: Autonomic & Autacoid Pharmacology
https://www.readbyqxmd.com/read/28327824/screening-of-wild-fruit-trees-with-gastroprotective-activity-in-different-experimental-models
#3
Luciane Angela Nottar Nesello, Adriana Campos, Roseane Leandra da Rosa, Sérgio Faloni de Andrade, Valdir Cechinel
BACKGROUND: Given the increase of people with gastrointestinal disorders, the search for alternative treatments with fewer side effects is vital, as well as the demand for food or plants that can help protect the stomach. OBJECTIVE: The aim of this study was to evaluate the gastroprotective action of the extracts of wild fruit trees of Myrcianthes pungens (guabiju); Inga vera Willd. (ingá-banana) and Marlierea tomentosa Cambess. (guarapuruna) in in vivo pharmacological models...
March 16, 2017: Arquivos de Gastroenterologia
https://www.readbyqxmd.com/read/28325558/l-citrulline-ameliorates-cerebral-blood-flow-during-cortical-spreading-depression-in-rats-involvement-of-nitric-oxide-and-prostanoids-mediated-pathway
#4
Yuki Kurauchi, Koichi Mokudai, Asami Mori, Kenji Sakamoto, Tsutomu Nakahara, Masahiko Morita, Ayako Kamimura, Kunio Ishii
l-Citrulline is a potent precursor of l-arginine, and exerts beneficial effect on cardiovascular system via nitric oxide (NO) production. Migraine is one of the most popular neurovascular disorder, and imbalance of cerebral blood flow (CBF) observed in cortical spreading depression (CSD) contributes to the mechanism of migraine aura. Here, we investigated the effect of l-citrulline on cardiovascular changes to KCl-induced CSD. in rats. Intravenous injection of l-citrulline prevented the decrease in CBF, monitored by laser Doppler flowmetry, without affecting mean arterial pressure and heart rate during CSD...
February 17, 2017: Journal of Pharmacological Sciences
https://www.readbyqxmd.com/read/28315470/the-nitric-oxide-synthase-2-pathway-is-targeted-by-both-pro-and-anti-inflammatory-treatments-in-the-immature-human-intestine
#5
Emanuela Ferretti, Eric Tremblay, Marie-Pier Thibault, David Grynspan, Karolina M Burghardt, Marcos Bettolli, Corentin Babakissa, Emile Levy, Jean-François Beaulieu
BACKGROUND AND AIM: NO synthase 2 (NOS2) was recently identified as one the most overexpressed genes in intestinal samples of premature infants with necrotizing enterocolitis (NEC). NOS2 is widely implicated in the processes of epithelial cell injury/apoptosis and host immune defense but its specific role in inflammation of the immature human intestinal mucosa remains unclear. Interestingly, factors that prevent NEC such as epidermal growth factor (EGF) attenuate the inflammatory response in the mid-gestation human small intestine using serum-free organ culture while drugs that are associated with NEC occurrence such as the non-steroidal anti-inflammatory drug, indomethacin (INDO), exert multiple detrimental effects on the immature human intestine...
March 14, 2017: Nitric Oxide: Biology and Chemistry
https://www.readbyqxmd.com/read/28298525/the-induction-of-pro-il-1%C3%AE-by-lipopolysaccharide-requires-endogenous-prostaglandin-e2-production
#6
Zbigniew Zasłona, Eva M Pålsson-McDermott, Deepthi Menon, Moritz Haneklaus, Ewelina Flis, Hannah Prendeville, Sarah E Corcoran, Marc Peters-Golden, Luke A J O'Neill
PGE2 has been shown to increase the transcription of pro-IL-1β. However, recently it has been demonstrated that PGE2 can block the maturation of IL-1β by inhibiting the NLRP3 inflammasome in macrophages. These apparently conflicting results have led us to reexamine the effect of PGE2 on IL-1β production. We have found that in murine bone marrow-derived macrophages, PGE2 via the cAMP/protein kinase A pathway is potently inducing IL-1β transcription, as well as boosting the ability of LPS to induce IL-1β mRNA and pro-IL-1β while inhibiting the production of TNF-α...
March 15, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/28298192/how-to-select-patients-and-timing-for-rectal-indomethacin-to-prevent-post-ercp-pancreatitis-a-systematic-review-and-meta-analysis
#7
REVIEW
Jianhua Wan, Yuping Ren, Zhenhua Zhu, Liang Xia, Nonghua Lu
BACKGROUND: Acute pancreatitis is a severe complication of endoscopic retrograde cholangiopancreatography (ERCP). Previous meta-analyses have shown that indomethacin effectively prevents this complication; however, the data are limited. We performed a systematic review and meta-analysis to clarify the applications for rectal indomethacin. METHODS: A systematic search was performed in June 2016. Human prospective, randomized, placebo-controlled trials that compared rectally administered indomethacin with a placebo for the prevention of post-ERCP pancreatitis (PEP) were included...
March 15, 2017: BMC Gastroenterology
https://www.readbyqxmd.com/read/28295549/uric-acid-ameliorates-indomethacin-induced-enteropathy-in-mice-through-its-antioxidant-activity
#8
Yuichi Yasutake, Kengo Tomita, Masaaki Higashiyama, Hirotaka Furuhashi, Kazuhiko Shirakabe, Takeshi Takajo, Koji Maruta, Hirokazu Sato, Kazuyuki Narimatsu, Kenichi Yoshikawa, Yoshikiyo Okada, Chie Kurihara, Chikako Watanabe, Shunsuke Komoto, Shigeaki Nagao, Hirotaka Matsuo, Soichiro Miura, Ryota Hokari
BACKGROUND AND AIM: Uric acid is excreted from blood into the intestinal lumen, yet the roles of uric acid in intestinal diseases remain to be elucidated. In this study, we aimed to determine whether uric acid could reduce endpoints associated with nonsteroidal anti-inflammatory drug (NSAID)-induced enteropathy. METHODS: A mouse model of NSAID-induced enteropathy was generated by administering indomethacin intraperitoneally to 8-week-old male C57BL/6 mice, and then vehicle or uric acid was administered orally...
March 14, 2017: Journal of Gastroenterology and Hepatology
https://www.readbyqxmd.com/read/28294366/antihyperalgesic-effects-of-indomethacin-ketorolac-and-metamizole-in-rats-effects-of-metformin
#9
Crystell Guadalupe Guzmán-Priego, Roberto Méndez-Mena, Manuel Alfonso Baños-González, Claudia Ivonne Araiza-Saldaña, Gabriela Castañeda-Corral, Jorge Elías Torres-López
Preclinical Research Metformin-dependent mechanisms have been implicated in the antinociceptive effect of some non-steroidal anti-inflammatory drugs (NSAIDs). In this study, the effect of local peripheral or systemic administration of metformin on the local peripheral or systemic antinociception induced by indomethacin, ketorolac and metamizole was assessed in the rat carrageenan-induced thermal hyperalgesia model. Rats were injected with carrageenan (1%, 50 µl) into the right hindpaw which reduced paw withdrawal latency, a measure of thermal hyperalgesia...
March 15, 2017: Drug Development Research
https://www.readbyqxmd.com/read/28292014/ameliorative-effect-of-chromium-d-phenylalanine-complex-on-indomethacin-induced-inflammatory-bowel-disease-in-rats
#10
S Nagarjun, Shivsharan B Dhadde, Veeresh P Veerapur, B S Thippeswamy, Baburao N Chandakavathe
Present study was designed to evaluate the effect of chromium-d-phenylalanine complex (Cr (d-phe)3) on indomethacin-induced inflammatory bowel disease (IBD) in rats. Adult Wistar rats were pretreated with vehicle/Cr (d-phe)3 (30, 60 and 90μg/kg, p.o.) for 11days. On day 8 and 9, after one h of the above mentioned treatment, indomethacin (7.5mg/kg/day,s.c.) was administered to induce IBD. On day 12, blood samples were collected from animals for lactate dehydrogenase (LDH) estimation and ileum was isolated for macroscopic scoring, biochemical estimation (lipid peroxidation, reduced glutathione and myeloperoxidase activity) and histopathological study...
March 10, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28287743/a-systematic-study-of-molecular-interactions-of-anionic-drugs-with-a-dimethylaminoethyl-methacrylate-copolymer-regarding-solubility-enhancement
#11
Wiebke Saal, Alfred Ross, Nicole Wyttenbach, Jochem Alsenz, Martin Kuentz
The methacrylate-copolymer Eudragit EPO (EPO) has raised interest in solubility enhancement of anionic drugs. Effects on aqueous drug solubility at rather low polymer concentrations are barely known despite their importance upon dissolution and dilution of oral dosage forms. We provide evidence for substantial enhancement (factor 4-230) of aqueous solubility of poorly water-soluble anionic drugs induced by low (0.1-5% (w/w)) concentration of EPO for a panel of seven acidic crystalline drugs. Diffusion data (determined by (1)H nuclear magnetic resonance spectroscopy) indicate that the solubility increasing effect monitored by quantitative ultraperformance liquid chromatography was caused primarily by molecular API polymer interactions in the bulk liquid phase...
March 21, 2017: Molecular Pharmaceutics
https://www.readbyqxmd.com/read/28285620/evidence-against-the-participation-of-a-pharmacokinetic-interaction-in-the-protective-effect-of-single-dose-curcumin-against-gastrointestinal-damage-induced-by-indomethacin-in-rats
#12
Liliana Zazueta-Beltrán, Lorena Medina-Aymerich, Nadia Estela Díaz-Triste, Aracely Evangelina Chávez-Piña, Gilberto Castañeda-Hernández, Leticia Cruz-Antonio
OBJECTIVE: To determine the role of a pharmacokinetic interaction in the protective effect of curcumin against the gastric damage induced by indomethacin administration as such or as its prodrug acemetacin. METHODS: Wistar rats orally received single dose of indomethacin (30 mg/kg) with and without curcumin (30 mg/kg); gastric injury was evaluated by determining the total damaged area. Additional groups of rats received an oral single dose of indomethacin (30 mg/kg) or its prodrug acemetacin (34...
March 2017: Journal of Integrative Medicine
https://www.readbyqxmd.com/read/28278165/indomethacin-counteracts-the-effects-of-chronic-social-defeat-stress-on-emotional-but-not-recognition-memory-in-mice
#13
Aránzazu Duque, Concepción Vinader-Caerols, Santiago Monleón
We have previously observed the impairing effects of chronic social defeat stress (CSDS) on emotional memory in mice. Given the relation between stress and inflammatory processes, we sought to study the effectiveness of the anti-inflammatory indomethacin in reversing the detrimental effects of CSDS on emotional memory in mice. The effects of CSDS and indomethacin on recognition memory were also evaluated. Male CD1 mice were randomly divided into four groups: non-stressed + saline (NS+SAL); non-stressed + indomethacin (NS+IND); stressed + saline (S+SAL); and stressed + indomethacin (S+IND)...
2017: PloS One
https://www.readbyqxmd.com/read/28272321/metabolite-profiling-of-eastern-teaberry-gaultheria-procumbens-l-lipophilic-leaf-extracts-with-hyaluronidase-and-lipoxygenase-inhibitory-activity
#14
Piotr Michel, Aleksandra Owczarek, Magdalena Matczak, Martyna Kosno, Paweł Szymański, Elżbieta Mikiciuk-Olasik, Anna Kilanowicz, Wiktor Wesołowski, Monika A Olszewska
The phytochemical profile and anti-inflammatory activity of Gaultheria procumbens dry lipophilic leaf extracts were evaluated. Forty compounds were identified by GC-MS, representing 86.36% and 81.97% of the petroleum ether (PE) and chloroform (CHE) extracts, respectively, with ursolic acid (28.82%), oleanolic acid (10.11%), methyl benzoate (10.03%), and methyl salicylate (6.88%) dominating in CHE, and methyl benzoate (21.59%), docosane (18.86%), and octacosane (11.72%) prevailing in PE. Three components of CHE were fully identified after flash chromatography isolation and spectroscopic studies as (6S,9R)-vomifoliol (4...
March 6, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28266106/nanomechanical-infrared-spectroscopy-with-vibrating-filters-for-pharmaceutical-analysis
#15
Maksymilian Kurek, Matthias Carnoy, Peter E Larsen, Line H Nielsen, Ole Hansen, Thomas Rades, Silvan Schmid, Anja Boisen
Standard infrared spectroscopy techniques are well-developed and widely used. However, they typically require milligrams of sample and can involve time-consuming sample preparation. A promising alternative is represented by nanomechanical infrared spectroscopy (NAM-IR) based on the photothermal response of a nanomechanical resonator, which enables the chemical analysis of picograms of analyte directly from a liquid solution in only a few minutes. Herein, we present NAM-IR using perforated membranes (filters)...
March 7, 2017: Angewandte Chemie
https://www.readbyqxmd.com/read/28265497/indomethacin-reproducibly-induces-metamorphosis-in-cassiopea-xamachana-scyphistomae
#16
Patricia Cabrales-Arellano, Tania Islas-Flores, Patricia E Thomé, Marco A Villanueva
Cassiopea xamachana jellyfish are an attractive model system to study metamorphosis and/or cnidarian-dinoflagellate symbiosis due to the ease of cultivation of their planula larvae and scyphistomae through their asexual cycle, in which the latter can bud new larvae and continue the cycle without differentiation into ephyrae. Then, a subsequent induction of metamorphosis and full differentiation into ephyrae is believed to occur when the symbionts are acquired by the scyphistomae. Although strobilation induction and differentiation into ephyrae can be accomplished in various ways, a controlled, reproducible metamorphosis induction has not been reported...
2017: PeerJ
https://www.readbyqxmd.com/read/28263803/prostaglandin-e2-regulates-renal-function-in-c57-bl6-mouse-with-5-6-nephrectomy
#17
J Jin, Q Tang, Z Li, Z Zhao, Z Zhang, L Lu, T Zhu, P M Vanhoutte, S W Leung, R Tu, Y Shi
AIMS: To investigate the roles of cyclooxygenases (COX) and their metabolites in C57/BL6 mice with 5/6 nephrectomy, an animal model of chronic renal failure. MAIN METHODS: C57/BL6 mice were grouped into sham-operated (2K), one kidney removal (1K) and 5/6 nephrectomy groups (5/6Nx). Renal resistive index was measured by ultrasonography. Blood, aortae, renal arteries and renal cortex were collected for measurement of kidney function, assessment of vascular responsiveness, Western blotting, immuohistochemistry and enzyme-linked immunosorbent assays...
March 2, 2017: Life Sciences
https://www.readbyqxmd.com/read/28261551/odd-couple-the-unexpected-partnership-of-glucocorticoid-hormones-and-cysteinyl-leukotrienes-in-the-extrinsic-regulation-of-murine-bone-marrow-eosinopoiesis
#18
REVIEW
Pedro Xavier-Elsas, Daniela Masid-de-Brito, Bruno Marques Vieira, Maria Ignez C Gaspar-Elsas
Granulopoiesis in murine bone-marrow is regulated by both intrinsic and extrinsic factors (including hormones, drugs, inflammatory mediators and cytokines). Eosinophils, a minor subpopulation of circulating leukocytes, which remains better understood in its contributions to tissue injury in allergic disease than in its presumably beneficial actions in host defense, provide a striking example of joint regulation of granulopoiesis within murine bone-marrow by all of these classes of extrinsic factors. We first described the upregulation of eosinopoiesis in bone-marrow of allergen-sensitized mice following airway allergen challenge...
February 20, 2017: World Journal of Experimental Medicine
https://www.readbyqxmd.com/read/28260552/indomethacin-induced-and-prostaglandin-relieved-coarctation-of-the-aorta-in-right-aortic-arch-with-left-arterial-duct-a-case-report
#19
Stevi Golden-Plotnik, Herschel C Rosenberg, Luis A Altamirano-Diaz
We describe the case of an infant with DiGeorge syndrome born with a right aortic arch and left arterial duct. Despite the remote location of the right aortic arch from the left arterial duct, he developed coarctation of the aorta during treatment with indomethacin. This was relieved by prostaglandin treatment. This case highlights the fact that, even in the absence of an arterial duct, ductal tissue can still be present in the aorta, and cause coarctation when exposed to indomethacin. We also demonstrate the utility of prostaglandin for relief of this type of obstruction...
March 6, 2017: Cardiology in the Young
https://www.readbyqxmd.com/read/28258737/association-between-use-of-prophylactic-indomethacin-and-the-risk-for-bronchopulmonary-dysplasia-in-extremely-preterm-infants
#20
Erik A Jensen, Kevin C Dysart, Marie G Gantz, Benjamin Carper, Rosemary D Higgins, Martin Keszler, Matthew M Laughon, Brenda B Poindexter, Barbara J Stoll, Michele C Walsh, Barbara Schmidt
OBJECTIVE: To assess the association between prophylactic indomethacin and bronchopulmonary dysplasia (BPD) in a recent, large cohort of extremely preterm infants. STUDY DESIGN: Retrospective cohort study using prospectively collected data for infants with gestational ages < 29 weeks or birth weights of 401-1000 g born between 2008 and 2012 at participating hospitals of the National Institute of Child Health and Human Development Neonatal Research Network...
February 28, 2017: Journal of Pediatrics
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