Search Results - "Pignatelli, B"

Peroxynitrite: an endogenous oxidizing and nitrating agent by Ducrocq, C, Blanchard, B, Pignatelli, B, Ohshima, H

“…Peroxynitrite, the reaction product between nitric oxide (.NO) and superoxide, has been presumed to be a mediator of cellular and tissue injury in various…”
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Authorship ignorance: views of researchers in French clinical settings by Pignatelli, B, Maisonneuve, H, Chapuis, F

“…Objectives: To assess the knowledge and behaviour of researchers regarding criteria for authorship, and the practices of ghost and gift authorship. Design:…”
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Peroxynitrite: an endogenous oxidizing and nitrating agent by Ducrocq, C., Blanchard, B., Pignatelli, B., Ohshima, H.

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Does increased endogenous formation of N-nitroso compounds in the human colon explain the association between red meat and colon cancer? by Bingham, S.A., Pignatelli, B., Pollock, J.R.A., Ellul, A., Malaveille, C., Gross, G., Runswick, S., Cummings, J.H., O'Neill, I.K.

“…High red meat diets have been linked with risk of sporadic colorectal cancer, but their effects on mutations which occur in this cancer are unknown. G→A…”
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Bacterial overgrowth during treatment with omeprazole compared with cimetidine: a prospective randomised double blind study by Thorens, J, Froehlich, F, Schwizer, W, Saraga, E, Bille, J, Gyr, K, Duroux, P, Nicolet, M, Pignatelli, B, Blum, A L, Gonvers, J J, Fried, M

“…BACKGROUND: Gastric and duodenal bacterial overgrowth frequently occurs in conditions where diminished acid secretion is present. Omeprazole inhibits acid…”
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Formation of 8-nitroguanine by the reaction of guanine with peroxynitrite in vitro by Yermilov, V, Rubio, J, Becchi, M, Friesen, M D, Pignatelli, B, Ohshima, H

“…Nitric oxide and superoxide anion, both formed in inflamed tissues, react rapidly to form the peroxynitrite anion (ONOO-), a strong oxidant which can initiate…”
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Increased oxidative and nitrative stress in human stomach associated with cagA+ Helicobacter pylori infection and inflammation by LI, Chun-Qi, PIGNATELLI, Brigitte, OHSHIMA, Hiroshi

“…In order to study the role of Helicobacter pylori infection in gastric carcinogenesis, we have measured oxidized (carbonyls) and nitrated…”
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Effect of omeprazole on intragastric bacterial counts, nitrates, nitrites, and N-nitroso compounds by Verdu, E, Viani, F, Armstrong, D, Fraser, R, Siegrist, H H, Pignatelli, B, Idström, J P, Cederberg, C, Blum, A L, Fried, M

“…Previous studies have suggested that profound inhibition of gastric acid secretion may increase exposure to potentially carcinogenic N-nitroso compounds. The…”
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Oxidative Stress in Gastric Mucosa of Asymptomatic Humans Infected with Helicobacter pylori: Effect of Bacterial Eradication by Felley, C. P., Pignatelli, B., Van Melle, G. D., Crabtree, J. E., Stolte, M., Diezi, J., Corthesy-Theulaz, I., Michetti, P., Bancel, B., Patricot, L. M., Ohshima, H., Felley-Bosco, E.

“…ABSTRACT Background. Inducible nitric oxide synthase (iNOS) and interleukin 8 (IL‐8) are positive in approximately 50% of Helicobacter pylori‐related diseases…”
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Inducible nitric oxide synthase, anti-oxidant enzymes and Helicobacter pylori infection in gastritis and gastric precancerous lesions in humans by Pignatelli, B, Bancel, B, Estève, J, Malaveille, C, Calmels, S, Correa, P, Patricot, L M, Laval, M, Lyandrat, N, Ohshima, H

“…Chronic inflammation induced by Helicobacter pylori infection has been associated with an increased risk of stomach cancer. We have analysed 167 stomach…”
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Levels of nitrite, nitrate, N-nitroso compounds, ascorbic acid and total bile acids in gastric juice of patients with and without precancerous conditions of the stomach by Sobala, G M, Pignatelli, B, Schorah, C J, Bartsch, H, Sanderson, M, Dixon, M F, Shires, S, King, R F, Axon, A T

“…To determine the relevance of gastric juice factors to gastric carcinogenesis, 56 patients with unoperated stomachs undergoing endoscopy for dyspepsia had…”
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Endogenous N-Nitroso Compounds, and Their Precursors, Present in Bacon, Do Not Initiate or Promote Aberrant Crypt Foci in the Colon of Rats by Parnaud, Geraldine, Pignatelli, Brigitte, Peiffer, Ginette, Taché, Sylviane, Corpet, Denis E.

“…Processed meat intake is associated with increased risk of colorectal cancer. This association may be explained by the endogenous formation of N-nitroso…”
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Geographic association between urinary excretion of N-nitroso compounds and oesophageal cancer mortality in China by Wu, Y, Chen, J, Ohshima, H, Pignatelli, B, Boreham, J, Li, J, Campbell, T C, Peto, R, Bartsch, H

“…Overnight urine samples were collected from approximately 60 male adults in each of 69 counties of China in 1989. Two specimens were collected from each…”
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Analysis of oxidized and nitrated proteins in plasma and tissues as biomarkers for exposure to reactive oxygen and nitrogen species by Ohshima, H, Pignatelli, B, Li, C Q, Baflast, S, Gilibert, I, Boffetta, P

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Human exposure to endogenous N-nitroso compounds: quantitative estimates in subjects at high risk for cancer of the oral cavity, oesophagus, stomach and urinary bladder by Bartsch, H, Ohshima, H, Pignatelli, B, Calmels, S

“…A sensitive procedure to quantitate human exposure to endogenous N-nitroso compounds (NOC) has been developed. It is based on the excretion of N-nitrosoproline…”
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Mutagens, N-nitroso compounds and their precursors in gastric juice from patients with and without precancerous lesions of the stomach by Pignatelli, B, Malaveille, C, Rogatko, A, Hautefeuille, A, Thuillier, P, Muñoz, N, Moulinier, B, Berger, F, De Montclos, H, Lambert, R

“…This study examined whether elevated risk of gastric cancer is associated with high levels of total N-nitroso compounds (NOC), their precursors and…”
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High gastric juice ascorbic acid concentrations in members of a gastric cancer family by Sobala, G M, Schorah, C J, Pignatelli, B, Crabtree, J E, Martin, I G, Scott, N, Quirke, P

“…Gastric juice ascorbic acid, total vitamin C, nitrite and N-nitroso-compound concentrations were determined in fasting gastric juice from four second…”
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In vivo nitrosoproline formation and other risk factors in Costa Rican children from high- and low-risk areas for gastric cancer by Sierra, R, Chinnock, A, Ohshima, H, Pignatelli, B, Malaveille, C, Gamboa, C, Teuchmann, S, Muñoz, N, Bartsch, H

“…The hypothesis that intragastric synthesis of N-nitroso compounds (NOC) in early life could play a role in gastric carcinogenesis was tested by applying the…”
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Studies in gastric carcinogenesis. V. The effects of ascorbic acid on N-nitroso compound formation in human gastric juice in vivo and in vitro by Kyrtopoulos, S A, Pignatelli, B, Karkanias, G, Golematis, B, Esteve, J

“…The concentrations of nitrite, thermo- and acetic acid-labile TEA-responsive compounds (TACs) and N-nitroso compounds (NOCs) as a group were measured in human…”
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Inhibition of nitrosation by Bartsch, H, Pignatelli, B, Calmels, S, Ohshima, H

“…Humans are exposed through ingestion or inhalation to preformed N-nitroso compounds (NOC) in the environment and through the endogenous nitrosation of amino…”
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