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Martin-Arjol Ignacio I Departament de Microbiologia i Parasitologia Sanitàries. Facultat de Farmàcia, Universitat de Barcelona, Av. Joan XXIII s/n, 08028, Barcelona, Spain, - - 2014
We modelled the production of hydroxy fatty acids from oleic acid by Pseudomonas aeruginosa 42A2 in a bioreactor with a non-dispersive aeration system. First, we designed an adapted wetted-wall gas-absorption column, offering a k La value of 39.9 h(-1), to enhance oxygen absorption in the culture media and prevent foam formation. ...
Pribytkova Tanya T Department of Microbiology, University of Manitoba, Winnipeg, - - 2014
The phenylacetic acid degradation pathway of Burkholderia cenocepacia is active during cystic fibrosis-like conditions and is necessary for full pathogenicity of B. cenocepacia in nematode and rat infection models; however, the reasons for such requirements are unknown. Here, we show that the attenuated virulence of a phenylacetic acid catabolism mutant ...
Manicardi Alex A Department of Chemistry, University of Parma, Parco Area delle Scienze 17/A, 43124, Parma, Italy. ; Tel: +39 0521 - - 2014
Pyrene derivatives can be incorporated into nucleic acid analogs in order to obtain switchable probes or supramolecular architectures. In this paper, peptide nucleic acids (PNAs) containing 1 to 3 1-pyreneacetic acid units (PNA1-6) with a sequence with prevalence of pyrimidine bases, complementary to cystic fibrosis W1282X point mutation were synthesized. ...
Seegmiller Adam C AC Department of Pathology, Microbiology and Immunology, Vanderbilt University School of Medicine, 4918B TVC, 1301 Medical Center Dr., Nashville, TN 37027, USA. - - 2014
Cystic fibrosis is an inherited multi-organ disorder caused by mutations in the CFTR gene. Patients with this disease exhibit characteristic abnormalities in the levels of unsaturated fatty acids in blood and tissue. Recent studies have uncovered an underlying biochemical mechanism for some of these changes, namely increased expression and activity ...
Alsayed Sherif - - 2013
In differential diagnosis of pleural effusions, cytology is the most sensitive method. Since cytology findings are positive in half of such fluids, combined use of reliable tumor marker and cytology is a logical approach. Sialic acid and other tumor markers can be reliable substances associated with neoplasia. The present study ...
Sironi Chiara - - 2013
Coefficient of kinetic friction (μ) of pleural mesothelium has been found to increase markedly after mesothelial blotting and rewetting. This increase disappeared after addition of a solution with hyaluronan or sialomucin, though previous morphological studies showed that only sialomucin occurs in mesothelial glycocalyx. In this research we investigated whether μ ...
Nishiyama So-ichiro - - 2012
The chemotaxis of Vibrio cholerae, the causative agent of cholera, has been implicated in pathogenicity. The bacterium has more than 40 genes for methyl-accepting chemotaxis protein (MCP)-like proteins (MLPs). In this study, we found that glycine and at least 18 L-amino acids, including serine, arginine, asparagine, and proline, serve as ...
Chowdhury Nityananda - - 2012
Sialic acids are nine carbon amino sugars that are present on all mucous membranes and are often used by bacteria as nutrients. In pathogenic Vibrio the genes for sialic acid catabolism are known to be important for host colonization, yet the route for sialic acid uptake is not proven. Vibrio ...
Koiso Hiromi - - 2011
Leukocytosis, splenomegaly, and an increased vitamin B(12) level are characteristic findings of chronic myelogenous leukemia in the chronic phase (CML-CP). Here, we report a patient with CML-CP accompanied by megaloblastic anemia. A 61-year-old man consulted our hospital because of anemia and thrombocytopenia. On physical examination, there were no remarkable findings; ...
Wehner Sven - - 2011
PURPOSE: Abdominal surgery results in an inflammation of the intestinal muscularis externa (ME), subsequently leading to postoperative ileus (POI). Polyunsaturated fatty acids (PUFA) are known to modulate inflammation. The aim of this study was to analyze the effect of preoperative parenteral administration of marine (n-3) or soybean (n-6) PUFA lipid ...
Chae Hee-Sung - - 2011
Lambertianic acid is a bioactive diterpene found in the leaves of Thuja orientalis. Its effect on the bone marrow-derived mast cell (BMMC) mediated allergy and inflammation mechanism remains unknown. In this study, lambertianic acid was evaluated for its effect on the allergic mediators, including prostaglandin D(2) (PGD(2)), leukotriene C(4) (LTC(4)), ...
Chakraborty Susmita - - 2011
Valproic acid, a conventional antiepileptic drug, is also used in the treatment of bipolar disorder, to provide rapid stabilization of the patient. Although thrombocytopenia is a potential threat, occurrence of suppression of the other cell lines in the bone marrow is also found rarely. Here in this study we report ...
Lewis Rohan M - - 2011
The developing fetus requires an adequate supply of fatty acids, in particular PUFA, for optimal growth and development. Little is known about the transfer of fatty acids by the placenta into the fetal circulation. However, the molecular form in which fatty acids are transferred into the fetal circulation may influence ...
Harper Kristin N KN Robert Wood Johnson Health & Society Scholars Program, Columbia University, 722 W. 168th St., Room 1611, New York, NY 10032, USA. - - 2011
It is believed that during mid-to-late gestation, docosahexaenoic acid (DHA), an n-3 fatty acid, plays an important role in fetal and infant brain development, including neurocognitive and neuromotor functions. Deficits in several such functions have been associated with schizophrenia. Though sufficient levels of DHA appear to be important in neurodevelopment, ...
Cleal J K JK Institute of Developmental Sciences, University of Southampton, Mail point 887, Southampton General Hospital, Tremona Road, Southampton SO16 6YD, UK. - - 2011
Fetal growth depends on placental transfer of amino acids from maternal to fetal blood. The mechanisms of net amino acid efflux across the basal membrane (BM) of the placental syncytiotrophoblast to the fetus, although vital for amino acid transport, are poorly understood. We examined the hypothesis that facilitated diffusion by ...
Nanjundaiah Siddaraju M - - 2011
Zinger officinale has been used as a traditional source against gastric disturbances from time immemorial. The ulcer-preventive properties of aqueous extract of ginger rhizome (GRAE) belonging to the family Zingiberaceae is reported in the present study. GRAE at 200 mg kg(-1) b.w. protected up to 86% and 77% for the swim stress-/ethanol stress-induced ...
Sjöblom M - - 2011
Sensing the luminal contents is a prerequisite to activate appropriate gastrointestinal functions. A major task of the duodenal epithelium is to resist the repeated challenges of hydrochloric acid expelled from the stomach. Although extensive research in this field, the complete mechanisms providing this defence remain to be revealed. The duodenal ...
Qiu Ling - - 2011
A series of novel zoledronic acid (ZL) derivatives 1-hydroxy-3-(2-methyl-1H-imidazol-1-yl)propane-1,1-diyldiphosphonic acid (MIPrDP), 1-hydroxy-4-(2-methyl-1H-imidazol-1-yl)butane-1,1-diyldiphosphonic acid (MIBDP), and 1-hydroxy-5-(2-methyl-1H-imidazol-1-yl)pentane-1,1-diyldiphosphonic acid (MIPeDP) were prepared and successfully labeled with 99mTc in high labeling yields. The in vitro stability and in vivo biodistribution of 99mTc-MIPrDP, 99mTc-MIBDP and 99mTc-MIPeDP were investigated and compared. The biodistribution studies indicate ...
Sachs George G Department of Physiology and Medicine, David Geffen School of Medicine, University of California at Los Angeles, VA Greater Los Angeles Healthcare System, Los Angeles, CA 90073, USA. - - 2010
The gastric H,K-adenosine triphosphatase (ATPase) is the primary target for treatment of acid-related diseases. Proton pump inhibitors (PPIs) are weak bases composed of two moieties, a substituted pyridine with a primary pK(a) of about 4.0 that allows selective accumulation in the secretory canaliculus of the parietal cell, and a benzimidazole ...
Lu Pei-Jung PJ Institute of Clinical Medicine, National Cheng Kung University, Tainan 701, Taiwan, - - 2010
To search the independent factors determining gastric juice acidity and to investigate the acidity of gastric juices in various benign and malignant upper gastrointestinal diseases. Fasting gastric juice acidity of 165 healthy subjects and 346 patients with esophageal ulcer (n = 21), gastric ulcer (n = 136), duodenal ulcer (n ...
Selvan Anitha - - 2010
Mammalian gastric lipases are stable and active under acidic conditions and also in the duodenal lumen. There has been considerable interest in acid stable lipases owing to their potential application in the treatment of pancreatic exocrine insufficiency. In order to gain insights into the domain movements of these enzymes, molecular ...
Zanotti Giuseppe - - 2010
Helicobacter pylori is a striking example of adaptation of a bacterium to a very peculiar niche, the human stomach. Despite being a neutralophile, a sophisticated control of gene expression allows it to live and to proliferate in an environment that cycles from nearly neutral to very acidic. Despite the numerous ...
Zanotti Giuseppe - - 2010
Schematic Representation of the Factors Involved in the Urease-Dependent Mechanism of Resistance of H. pylori to Acid Stress by Giuseppe Zanotti and Laura Cendron, pp. 715-723.
Hutton Emily A - - 2010
This article reports on a novel microsensor for amperometric measurement of ascorbic acid (AA) under acidic conditions (pH 2) based on a carbon fiber microelectrode (CFME) modified with nickel oxide and ruthenium hexacyanoferrate (NiO-RuHCF). This sensing layer was deposited electrochemically in a two-step procedure involving an initial galvanostatic NiO deposition ...
Abu-Sneineh A - - 2010
Acid reflux is often difficult to control medically. To assess the effect of 40 mg twice daily esomeprazole (high-dose) on gastric and oesophageal pH and symptoms, and biomarkers relevant to adenocarcinoma, in patients with Barrett's oesophagus (BO). Eighteen patients, treated with proton pump inhibitors as prescribed by their treating doctor, ...
Hori Yasunobu - - 2010
Proton pump inhibitors (PPIs) are widely used in the treatment of acid-related diseases. However, several unmet medical needs, such as suppression of night-time acid secretion and rapid symptom relief, remain. In this study, we investigated the pharmacological effects of 1-[5-(2-fluorophenyl)-1-(pyridin-3-ylsulfonyl)-1H-pyrrol-3-yl]-N-methylmethanamine monofumarate (TAK-438), a novel potassium-competitive acid blocker (P-CAB), on gastric ...
Srivastava Vivek - - 2010
To study the ulcer protective property of sodium cromoglycate in pylorusligated rats and the biochemical role in ulcer protection by various biochemical tests. The ulcer protective effect of sodium cromoglycate was studied using a Pyloric Ligation Model using Wistar albino rats. The antiulcer effect of sodium cromoglycate 40 mg/kg b.w., ...
Yesilada Erdem - - 2010
The aerial parts of Equisetum palustre L. are used to treat peptic ulcer disease in Turkey. In a previous study, a flavonol diglucoside i.e., kaempferol 3-O-1''-beta-D-glucopyranosyl-3-O-1'''-beta-D-glucopyranoside (KGG) was isolated as the major antiulcerogenic constituent from the plant. The present study was undertaken to evaluate the antiulcer activity profile of KGG ...
Howell Michael D - - 2010
BACKGROUND: The incidence and severity of Clostridium difficile infections are increasing. Acid-suppressive therapy has been suggested as a risk factor for C difficile, but this remains controversial. METHODS: We conducted a pharmacoepidemiologic cohort study, performing a secondary analysis of data collected prospectively on 101 796 discharges from a tertiary care ...
Potrich Francine Bittencourt - - 2010
Achillea millefolium L. is a member of the Asteraceae family that is commonly referred to as "yarrow" and has been used in folk medicine against several disturbances including skin inflammations, spasmodic and gastrointestinal disorders, as well as hepato-biliary complaints. AIM OF THE STUDY: In the present study, we evaluated the ...
Morgan D - - 2010
Hispanic-Americans are a rapidly growing population in the United States, yet gastro-oesophageal reflux disease (GERD) is not well studied in this population. To compare the efficacy of esomeprazole, lansoprazole and pantoprazole in suppressing gastric acid, including the area of the 'acid pocket,' in Hispanics with GERD. In this open-label, 3-way ...
Lodato Francesca - - 2010
Proton pump inhibitors (PPI) are very effective drugs used largely in acid related disorders. During the last years concern have been raised regarding their overutilisation in benign condition, such as gastroesophageal reflux disease. The debate focussed also on the risk of adverse events related to long term use of PPI. ...
Cheung Justin J Department of Medicine, Division of Gastroenterology, University of Alberta, University of Alberta Hospital, Edmonton, - - 2010
Practices relating to acute peptic ulcer bleeding (APUB) outside of guideline recommendations are unknown. To evaluate the practices of university-affiliated (UA) versus nonuniversity-affiliated (non-UA) gastroenterologists in controversial APUB issues. Gastroenterologists in Canada were mailed an anonymous questionnaire (January 2008) regarding APUB management. Responses were received for 281 of the 530 ...
van Boxel O S - - 2010
The response to chemical stimuli such as acid, nutrients, and capsaicin at the level of the duodenum is increasingly recognized as important in the etiology of dyspeptic symptoms. Increased duodenal acid exposure has been reported for patients with dyspeptic symptoms. Duodenal hypersensitivity to acid and the enhancing effect of duodenal ...
Schmeda-Hirschmann Guillermo - - 2010
Following our studies on the gastroprotective effect and cytotoxicity of terpene derivatives, new amides were prepared from the diterpene 8(17)-labden-15,19-dioic acid (junicedric acid) and its 8(9)-en isomer with C-protected amino acids (amino acid esters). The new compounds were evaluated for their gastroprotective effect in the ethanol/HCl-induced gastric lesions model in ...
Hirschowitz Basil I - - 2010
GOALS: To define both risks and costs of optimal care of patients with gastric acid hypersecretion. BACKGROUND: The management of Zollinger-Ellison syndrome and other gastric acid hypersecretory disorders remains challenging. The optimal strategy for follow-up including gastric acid analysis, laboratory studies, and endoscopy is unknown but important given the potential ...
Kim Su-Jin - - 2010
Vanillic acid, an oxidized form of vanillin, is a benzoic acid derivative used as a flavoring agent. The objective of this study was to determine whether vanillic acid has beneficial effects against dextran sulfate sodium (DSS)-induced ulcerative colitis. Our results showed that vanillic acid reduced the severity of the clinical ...
Nemzek Jean A - - 2010
The effects of individual ELR+ CXC chemokines have been documented in experimental models of acid aspiration. However, aspiration lung injury would be influenced by the combined effects of these chemokines and other factors related to their function. Therefore, the role of the chemokine receptor CXCR2 was examined in lung injury ...
Sachs George - - 2009
Helicobacter pylori infection causes chronic active gastritis, ulcer disease, and gastric cancer. Current eradication regimens use a proton pump inhibitor (PPI) and two antibiotics. Triple therapy now has a success rate less than 80%, below the cutoff for efficacious eradication. Antibiotic resistance, inconsistent acid control by PPIs, and poor patient ...
Osefo Nauramy - - 2009
Gastric acid hypersecretory states are characterized by basal hypersecretion of gastric acid and historically include disorders associated with hypergastrinemia, hyperhistaminemia, and those of unknown etiology. Although gastric acid secretion is infrequently measured, it is important to recognize the role of gastric hypersecretion in the symptoms of these disorders because they ...
Shaikh Jan Muhammad - - 2009
Pulmonary aspiration of gastric contents leading to acid aspiration syndrome (AAS) is a well recognized risk factor during general anaesthesia (GA) for Caesarean section (CS). The cross sectional observational study was conducted during July 2008 to October 2008 at Department of Anaesthesiology and Intensive Care, Liaquat University of Medical & ...
Saccar Consuelo L - - 2009
Esomeprazole (S-isomer of omeprazole) demonstrates a better pharmacokinetic/pharmacodynamic profile than the racemic product omeprazole. Esomeprazole's pharmacological activity of gastric acid secretion is through proton pump inhibition. The pharmacokinetic properties provide for an enhanced pharmacological effect. Esomeprazole is rapidly absorbed and the extent of absorption is higher resulting in higher systemic ...
DeVault Kenneth R - - 2009
The development of effective acid-suppression therapy (particularly PPIs) has revolutionized the treatment of acid-related diseases. Despite the overall effectiveness of these agents, they have some shortcomings, including a delayed onset of action, incomplete acid suppression in the majority of patients, and the need for ingestion before a meal to achieve ...
Nerandzic Michelle M - - 2009
Proton pump inhibitors (PPIs) have been associated with Clostridium difficile infection (CDI) in several recent studies. However, other studies have not shown this association, and the mechanism by which PPIs might promote CDI has not been elucidated. We hypothesized two possible mechanisms of causation: first, by raising pH, PPIs may ...
Lin Wen-Hsin - - 2009
We investigated the bactericidal activity and exclusion effect of 10 strains of lactic acid bacteria (LAB) isolated from different commercial food products and infant feces against Helicobacter pylori (H. pylori) in human gastric epithelial AGS cells. Antagonistic activity of spent culture supernatants (SCS) from LAB (LAB-SCS) was tested, and the ...
Safak Birol - - 2009
Eradication of Helicobacter pylori is an important objective in overcoming gastric diseases. Many regimens are currently available but none of them could achieve 100% success in eradication. Medicinal lichen is used in the treatment of gastric ulcer in local folk medicine in Anatolia (Turkey). The present study was performed to ...
Mohs Aaron M - - 2009
Semiconductor quantum dots (QDs) have shown great promise as fluorescent probes for molecular, cellular and in-vivo imaging. However, the fluorescence of traditional polymer-encapsulated QDs is often quenched by proton-induced etching in acidic environments. This is a major problem for QD applications in the gastrointestinal tract because the gastric (stomach) environment ...
Lee Je-Hyuk - - 2009
In this study we investigated the effects of Gardenia jasminoides Ellis (GJE) extract and its constituents, such as ursolic acid and genipin, on gastritis in rats and the growth of human gastric cancer cells. The GJE extract, ursolic acid and genipin showed the acid-neutralizing capacities, the antioxidant activities, and the ...
Mayer Bárbara - - 2009
The gastrointestinal activity of hydroalcoholic extract (HE) of Salvia officinalis was evaluated in a model of ethanol-induced gastric lesion. HE showed excellent activity, with ID(50) 84.0 (54.8-128.9) mg/kg. The acetic acid-induced ulcer and the total acidity of the gastric secretion were also reduced by HE, and, in vitro experiments, the ...
Bailey Nick - - 2009
Acid pump antagonists (APAs) such as the imidazo[1,2-a]pyridine AZD-0865 2 have proven efficacious at low oral doses in acid related gastric disorders. Herein we describe some of the broader SAR in this class of molecule and detail the discovery of an imidazo[1,2-a]pyridine 15 which has excellent efficacy in animal models ...
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