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https://www.readbyqxmd.com/read/28520456/development-and-validation-of-a-micellar-liquid-chromatographic-method-to-determine-three-antitumorals-in-plasma
#1
Josep Esteve Romero, Jaume Albiol Chiva, Juan Peris-Vicente, Enrique Ochoa-Aranda
AIM: A micellar liquid chromatographic method to determine several anticancer drugs (pazopanib, dabrafenib and regorafenib) in plasma was developed and validated by the guidelines of the EMA. EXPERIMENTAL: Plasma samples were directly injected, after a 1/5-dilution in a micellar solution. The drugs were resolved in <18 min using a C18 column. The mobile phase was an aqueous solution of 0.12 M SDS - 2% 1-pentanol, buffered at pH 7. The detection was performed by absorbance at 260 nm...
May 18, 2017: Bioanalysis
https://www.readbyqxmd.com/read/28489035/development-of-conductivity-sensors-for-multi-phase-flow-local-measurements-at-the-polytechnic-university-of-valencia-upv-and-university-jaume-i-of-castellon-uji
#2
REVIEW
José Luis Muñoz-Cobo, Sergio Chiva, Santos Méndez, Guillem Monrós, Alberto Escrivá, José Luis Cuadros
This paper describes all the procedures and methods currently used at UPV (Universitat Politécnica de Valencia) and UJI (University Jaume I) for the development and use of sensors for multi-phase flow analysis in vertical pipes. This paper also describes the methods that we use to obtain the values of the two-phase flow magnitudes from the sensor signals and the validation and cross-verification methods developed to check the consistency of the results obtained for these magnitudes with the sensors. First, we provide information about the procedures used to build the multi-sensor conductivity probes and some of the tests performed with different materials to avoid sensor degradation issues...
May 10, 2017: Sensors
https://www.readbyqxmd.com/read/28462707/diet-and-cardiovascular-disease-effects-of-foods-and-nutrients-in-classical-and-emerging-cardiovascular-risk-factors
#3
Lina Badimon, Patricia Chagas, Gemma Chiva-Blanch
Cardiovascular diseases (CVD) are the leading cause of mortality worldwide. Diet comprises a mixture of food compounds that has an influence on human health. The relationship between diet and health is extremely complex and strategies to delay or prevent chronic diseases such as CVD are of utmost interest because chronic diseases and more concretely CVD are still the leading cause of death and disability worldwide. In this mini-review, we aimed to summarize the current knowledge about the principal diet components that potentially influence CVD initiation and progression...
April 27, 2017: Current Medicinal Chemistry
https://www.readbyqxmd.com/read/28431588/chiva-a-prospective-study-of-a-vein-sparing-technique-for-the-management-of-varicose-vein-disease
#4
Marta Zmudzinski, Pierre Malo, Christine Hall, Allen Hayashi
BACKGROUND: Varicose vein disease (VVD) affects approximately one third of adults. Cure Conservatrice et Hémodynamique de l'Insuffisance Veineuse en Ambulatoire (CHIVA) is a minimally invasive, vein sparing technique that is emerging as an alternative to ablative techniques for treating VVD. METHODS: This prospective study assessed the rate of recurrence of venous reflux with CHIVA. We evaluated 150 primary procedures with clinical and duplex ultrasound examinations pre and post operatively...
April 4, 2017: American Journal of Surgery
https://www.readbyqxmd.com/read/28410284/european-surgical-education-and-training-in-gynecologic-oncology-the-impact-of-an-accredited-fellowship
#5
Luis M Chiva, Jose Mínguez, Denis Querleu, David Cibula, Andreas du Bois
OBJECTIVE: The aim of this study was to understand the current situation of surgical education and training in Europe among members of the European Society of Gynecological Oncology (ESGO) and its impact on the daily surgical practice of those that have completed an accredited fellowship in gynecologic oncology. METHODS: A questionnaire addressing topics of interest in surgical training was designed and sent to ESGO members with surgical experience in gynecologic oncology...
May 2017: International Journal of Gynecological Cancer
https://www.readbyqxmd.com/read/28372157/discrimination-of-whisky-brands-and-counterfeit-identification-by-uv-vis-spectroscopy-and-multivariate-data-analysis
#6
Angélica Rocha Martins, Márcio Talhavini, Maurício Leite Vieira, Jorge Jardim Zacca, Jez Willian Batista Braga
The discrimination of whisky brands and counterfeit identification were performed by UV-Vis spectroscopy combined with partial least squares for discriminant analysis (PLS-DA). In the proposed method all spectra were obtained with no sample preparation. The discrimination models were built with the employment of seven whisky brands: Red Label, Black Label, White Horse, Chivas Regal (12years), Ballantine's Finest, Old Parr and Natu Nobilis. The method was validated with an independent test set of authentic samples belonging to the seven selected brands and another eleven brands not included in the training samples...
August 15, 2017: Food Chemistry
https://www.readbyqxmd.com/read/28359822/computational-and-experimental-approaches-for-development-of-methotrexate-nanosuspensions-by-bottom-up-nanoprecipitation
#7
Aline Martins Dos Santos, Flávia Chiva Carvalho, Deiver Alessandro Teixeira, David Lima Azevedo, Wander Miguel de Barros, Maria Palmira Daflon Gremião
Development of nanosuspensions offers a promising tool for formulations involving poorly water-soluble drugs. In this study, methotrexate (MTX) nanosuspensions were prepared using a bottom-up process based on acid-base neutralization reactions. Computational studies were performed to determine structural and electronic properties for isolated molecules and molecular clusters in order to evaluate the mechanism of MTX nanoparticle formation. Computational results indicated that the clusters in zwitterionic and cationic states presented larger dimensions and higher energies of interaction between MTX molecules, which favored aggregation...
March 28, 2017: International Journal of Pharmaceutics
https://www.readbyqxmd.com/read/28266123/evaluation-of-different-peptide-fragmentation-types-and-mass-analyzers-in-data-dependent-methods-using-an-orbitrap-fusion-lumos-tribrid-mass-spectrometer
#8
Guadalupe Espadas, Eva Borràs, Cristina Chiva, Eduard Sabidó
One of the major additions in MS technology has been the irruption of the Orbitrap mass analyzer, which has boosted the proteomics analyses of biological complex samples since its introduction. Here, we took advantage of the capabilities of the new Orbitrap Fusion Lumos Tribrid mass spectrometer to assess the performance of different data-dependent acquisition methods for the identification and quantitation of peptides and phosphopeptides in single-shot analysis of human whole cell lysates. Our study explored the capabilities of tri-hibrid mass spectrometers for (phospho-) peptide identification and quantitation using different gradient lengths, sample amounts, and combinations of different peptide fragmentation types and mass analyzers...
May 2017: Proteomics
https://www.readbyqxmd.com/read/28236803/inhaled-nitric-oxide-in-adult-patients-with-acute-respiratory-distress-syndrome
#9
José Ángel Monsalve-Naharro, Esther Domingo-Chiva, Sergio García Castillo, Pablo Cuesta-Montero, José María Jiménez-Vizuete
In some patients, acute respiratory distress syndrome (ARDS) leads to life-threatening refractory hypoxemia developing. Physicians may consider hypoxemic rescue therapies in an attempt to improve oxygenation in these patients while on conventional mechanical ventilation support. Use of inhaled nitric oxide (iNO) in ARDS is one of the most widely-studied pharmacological interventions over the past two decades. Its efficacy was examined in several randomized clinical trials and has undergone meta-analyses...
March 1, 2017: Farmacia Hospitalaria
https://www.readbyqxmd.com/read/28215465/the-frailty-syndrome-is-associated-with-adverse-health-outcomes-in-very-old-patients-with-stable-heart-failure-a-prospective-study-in-six-spanish-hospitals
#10
Carlos Rodríguez-Pascual, Emilio Paredes-Galán, Ana-Isabel Ferrero-Martínez, Jose-Luis Gonzalez-Guerrero, Mercedes Hornillos-Calvo, Rocio Menendez-Colino, Ivett Torres-Torres, Arturo Vilches-Moraga, Maria-Concepcion Galán, Francisco Suarez-Garcia, Maria-Teresa Olcoz-Chiva, Fernando Rodríguez-Artalejo
BACKGROUND: Most studies on the association between the frailty syndrome and adverse health outcomes in patients with heart failure (HF) have used non-standard definitions of frailty. This study examined the association of frailty, diagnosed by well-accepted criteria, with mortality, readmission and functional decline in very old ambulatory patients with HF. METHODS: Prospective study with 497 patients in six Spanish hospitals and followed up during one year. Mean (SD) age was 85...
February 8, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28207887/platelet-monocyte-derived-and-tissue-factor-carrying-circulating-microparticles-are-related-to-acute-myocardial-infarction-severity
#11
Gemma Chiva-Blanch, Kristian Laake, Peder Myhre, Vibeke Bratseth, Harald Arnesen, Svein Solheim, Lina Badimon, Ingebjørg Seljeflot
OBJECTIVE: Circulating microparticles (cMPs) are phospholipid-rich vesicles released from cells when activated or injured, and contribute to the formation of intracoronary thrombi. Tissue factor (TF, CD142) is the main trigger of fibrin formation and TF-carrying cMPs are considered one of the most procoagulant cMPs. Similar types of atherosclerotic lesions may lead to different types of AMI, although the mechanisms behind are unresolved. Therefore, we aimed to investigate the phenotype of cMPs found in plasma of ACS patients and its relation to AMI severity and thrombotic burden...
2017: PloS One
https://www.readbyqxmd.com/read/28114231/brief-report-about-the-role-of-hyperthermic-intraperitoneal-chemotherapy-in-a-prospective-randomized-phase-3-study-in-recurrent-ovarian-cancer-from-spiliotis-et-al
#12
Philipp Harter, Alexander Reuss, Jalid Sehouli, Luis Chiva, Andreas du Bois
A published so-called phase 3 study regarding HIPEC in ovarian cancer raised multiple questions. This commentary focusses on the weakness of the publication and discusses this in detail.
February 2017: International Journal of Gynecological Cancer
https://www.readbyqxmd.com/read/28102078/peptide-selection-for-targeted-protein-quantitation
#13
Cristina Chiva, Eduard Sabidó
Targeted proteomics methods in their different flavors rely on the use of a few peptides as proxies for protein quantitation, which need to be specified either prior to or after data acquisition. However, in contrast with discovery methods that use all identified peptides for a given protein to estimate its abundance, targeted proteomics methods are limited in the number of peptides that are used for protein quantitation. Because only a few peptides per protein are acquired or extracted in targeted experiments, the selection of peptides that are used for targeted protein quantitation becomes crucial...
January 30, 2017: Journal of Proteome Research
https://www.readbyqxmd.com/read/28068186/bactericidal-efficacy-of-photodynamic-therapy-and-chitosan-in-root-canals-experimentally-infected-with-enterococcus-faecalis-an-in-vitro-study
#14
Fabio Camacho-Alonso, Encarnación Julián-Belmonte, Fernando Chiva-García, Yolanda Martínez-Beneyto
OBJECTIVE: To evaluate the antibacterial efficacy of photodynamic therapy (PDT) and chitosan against Enterococcus faecalis and assess the possible enhancive effect of chitosan on the photosensitizer methylene blue in experimentally infected root canals of extracted human teeth in vitro. BACKGROUND DATA: E. faecalis is frequently found in persistent endodontic infections. In this context, the antimicrobial PDT or newer antibacterial alternatives such as chitosan could become modern alternatives to existing antibacterial treatment approaches...
April 2017: Photomedicine and Laser Surgery
https://www.readbyqxmd.com/read/28068169/value-of-neoadjuvant-chemotherapy-for-newly-diagnosed-advanced-ovarian-cancer-a-european-perspective
#15
Christina Fotopoulou, Jalid Sehouli, Giovanni Aletti, Philipp Harter, Sven Mahner, Denis Querleu, Luis Chiva, Hani Gabra, Nicoletta Colombo, Andreas du Bois
No abstract text is available yet for this article.
February 20, 2017: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
https://www.readbyqxmd.com/read/27915085/monocyte-derived-circulating-microparticles-cd14-cd14-cd11b-and-cd14-cd142-are-related-to-long-term-prognosis-for-cardiovascular-mortality-in-stemi-patients
#16
Gemma Chiva-Blanch, Vibeke Bratseth, Vibeke Ritschel, Geir Ø Andersen, Sigrun Halvorsen, Jan Eritsland, Harald Arnesen, Lina Badimon, Ingebjørg Seljeflot
BACKGROUND: Circulating microparticles (cMPs) have been proposed as novel biomarkers of cardiovascular disease (CVD). We aimed to investigate the prognostic relevance of cMPs for future major adverse cardiovascular events (MACE) in STEMI patients. METHODS: We included 200 STEMI patients treated with percutaneous coronary intervention (PCI). One hundred patients with a primary composite end point (recurrent nonfatal acute MI, rehospitalization for heart failure, unscheduled PCI or death because of CV causes) were case-matched for sex, age, and CVD risk factors to 100 patients without a primary endpoint at the end of study follow-up (4...
January 15, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/27903962/targeted-proteomics-in-urinary-extracellular-vesicles-identifies-biomarkers-for-diagnosis-and-prognosis-of-prostate-cancer
#17
Tamara Sequeiros, Marina Rigau, Cristina Chiva, Melania Montes, Iolanda Garcia-Grau, Marta Garcia, Sherley Diaz, Ana Celma, Irene Bijnsdorp, Alex Campos, Primiano Di Mauro, Salvador Borrós, Jaume Reventós, Andreas Doll, Rosanna Paciucci, Michiel Pegtel, Inés de Torres, Eduard Sabidó, Juan Morote, Mireia Olivan
Rapid and reliable diagnosis of prostate cancer (PCa) is highly desirable as current used methods lack specificity. In addition, identification of PCa biomarkers that can classify patients into high- and low-risk groups for disease progression at early stage will improve treatment decision-making. Here, we describe a set of protein-combination panels in urinary extracellular vesicles (EVs), defined by targeted proteomics and immunoblotting techniques that improve early non-invasive detection and stratification of PCa patients...
January 17, 2017: Oncotarget
https://www.readbyqxmd.com/read/27761508/dataset-of-the-botrytis-cinerea-phosphoproteome-induced-by-different-plant-based-elicitors
#18
Eva Liñeiro, Cristina Chiva, Jesús M Cantoral, Eduard Sabido, Francisco Javier Fernández-Acero
Phosphorylation is one of the main post-translational modification (PTM) involved in signaling network in the ascomycete Botrytis cinerea, one of the most relevant phytopathogenic fungus. The data presented in this article provided a differential mass spectrometry-based analysis of the phosphoproteome of B. cinerea under two different phenotypical conditions induced by the use of two different elicitors: glucose and deproteinized Tomate Cell Walls (TCW). A total 1138 and 733 phosphoproteins were identified for glucose and TCW culture conditions respectively...
June 2016: Data in Brief
https://www.readbyqxmd.com/read/27648981/the-frailty-syndrome-and-mortality-among-very-old-patients-with-symptomatic-severe-aortic-stenosis-under-different-treatments
#19
Carlos Rodríguez-Pascual, Emilio Paredes-Galán, Ana Isabel Ferrero-Martínez, José Antonio Baz-Alonso, Darío Durán-Muñoz, Eva González-Babarro, Marcelo Sanmartín, Teresa Parajes, Ivett Torres-Torres, Miguel Piñón-Esteban, Francisco Calvo-Iglesias, Maria Teresa Olcoz-Chiva, Fernando Rodríguez-Artalejo
BACKGROUND: The role of frailty as a prognostic factor in non-selected patients with symptomatic severe aortic stenosis (SAS) is still uncertain. This study aims to examine the association between the frailty syndrome and mortality among very old patients with symptomatic SAS, and to assess whether the association varies with the type of SAS treatment. METHODS AND RESULTS: Prospective study of 606 patients aged ≥75years with symptomatic SAS, recruited from February 2010 to January 2015, who were followed up through June 2015...
December 1, 2016: International Journal of Cardiology
https://www.readbyqxmd.com/read/27648648/european-society-of-gynaecologic-oncology-quality-indicators-for-advanced-ovarian-cancer-surgery
#20
Denis Querleu, François Planchamp, Luis Chiva, Christina Fotopoulou, Desmond Barton, David Cibula, Giovanni Aletti, Silvestro Carinelli, Carien Creutzberg, Ben Davidson, Philip Harter, Lene Lundvall, Christian Marth, Philippe Morice, Arash Rafii, Isabelle Ray-Coquard, Andrea Rockall, Cristiana Sessa, Ate van der Zee, Ignace Vergote, Andreas du Bois
OBJECTIVES: The surgical management of advanced ovarian cancer involves complex surgery. Implementation of a quality management program has a major impact on survival. The goal of this work was to develop a list of quality indicators (QIs) for advanced ovarian cancer surgery that can be used to audit and improve the clinical practice. This task has been carried out under the auspices of the European Society of Gynaecologic Oncology (ESGO). METHODS: Quality indicators were based on scientific evidence and/or expert consensus...
September 2016: International Journal of Gynecological Cancer
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