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https://www.readbyqxmd.com/read/28617580/progressive-stereo-locking-psl-a-residual-dipolar-coupling-based-force-field-method-for-determining-the-relative-configuration-of-natural-products-and-other-small-molecules
#1
Gabriel Cornilescu, René F Ramos Alvarenga, Thomas P Wyche, Tim S Bugni, Roberto R Gil, Claudia C Cornilescu, William M Westler, John L Markley, Charles D Schwieters
Establishing the relative configuration of a bioactive natural product represents the most challenging part in determining its structure. Residual dipolar couplings (RDCs) are sensitive probes of the relative spatial orientation of internuclear vectors. We adapted a force field structure calculation methodology to allow free sampling of both R and S configurations of the stereocenters of interest. The algorithm uses a floating alignment tensor in a simulated annealing protocol to identify the conformations and configurations that best fit experimental RDC and distance restraints (from NOE and J-coupling data)...
June 15, 2017: ACS Chemical Biology
https://www.readbyqxmd.com/read/28610637/the-effects-of-resistance-training-on-muscle-strength-joint-pain-and-hand-function-in-individuals-with-hand-osteoarthritis-a-systematic-review-and-meta-analysis
#2
Nicoló Edoardo Magni, Peter John McNair, David Andrew Rice
BACKGROUND: Hand osteoarthritis is a common condition characterised by joint pain and muscle weakness. These factors are thought to contribute to ongoing disability. Some evidence exists that resistance training decreases pain, improves muscle strength, and enhances function in people with knee and hip osteoarthritis. However, there is currently a lack of consensus regarding its effectiveness in people with hand osteoarthritis. Therefore, the aim of this systematic review and meta-analysis was to establish whether resistance training in people with hand osteoarthritis increases grip strength, decreases joint pain, and improves hand function...
June 13, 2017: Arthritis Research & Therapy
https://www.readbyqxmd.com/read/28597585/psychosocial-functioning-in-adolescents-with-and-without-borderline-personality-disorder
#3
Ueli Kramer, Christina M Temes, Laura R Magni, Garrett M Fitzmaurice, Blaise A Aguirre, Marianne Goodman, Mary C Zanarini
OBJECTIVE: Little is known about the psychosocial functioning of adolescents with borderline personality disorder (BPD). The main objective of this paper is to compare the psychosocial functioning of a group of adolescents with BPD to a group of psychiatrically healthy adolescents. METHODS: The present cross-sectional study included 104 adolescent inpatients with BPD, compared with 60 age-matched psychiatrically healthy comparison subjects. All participants were rigorously diagnosed using three semi-structured interviews: the Structured Clinical Interview for DSM-IV Childhood Diagnoses, the Revised Diagnostic Interview for Borderlines and the Childhood Interview for DSM-IV Borderline Personality...
June 8, 2017: Personality and Mental Health
https://www.readbyqxmd.com/read/28595492/current-mathematical-models-for-cancer-drug-discovery
#4
Letizia Carrara, Silvia Maria Lavezzi, Elisa Borella, Giuseppe De Nicolao, Paolo Magni, Italo Poggesi
Pharmacometric models represent the most comprehensive approache for extracting, summarizing and integrating information obtained in the often sparse, limited, and less-than-optimally designed experiments performed in the early phases of oncology drug discovery. Whilst empirical methodologies may be enough for screening and ranking candidate drugs, modeling approaches are needed for optimizing and making economically viable the learn-confirm cycles within an oncology research program and anticipating the dose regimens to be investigated in the subsequent clinical development...
June 8, 2017: Expert Opinion on Drug Discovery
https://www.readbyqxmd.com/read/28577554/fermentation-of-lactose-to-ethanol-in-cheese-whey-permeate-and-concentrated-permeate-by-engineered-escherichia-coli
#5
Lorenzo Pasotti, Susanna Zucca, Michela Casanova, Giuseppina Micoli, Maria Gabriella Cusella De Angelis, Paolo Magni
BACKGROUND: Whey permeate is a lactose-rich effluent remaining after protein extraction from milk-resulting cheese whey, an abundant dairy waste. The lactose to ethanol fermentation can complete whey valorization chain by decreasing dairy waste polluting potential, due to its nutritional load, and producing a biofuel from renewable source at the same time. Wild type and engineered microorganisms have been proposed as fermentation biocatalysts. However, they present different drawbacks (e...
June 2, 2017: BMC Biotechnology
https://www.readbyqxmd.com/read/28570452/comparison-of-v-y-advancement-flap-versus-lotus-petal-flap-for-plastic-reconstruction-after-surgery-in-case-of-vulvar-malignancies-a-retrospective-single-center-experience
#6
Pier Luigi Confalonieri, Roberta Gilardi, Luca Carlo Rovati, Anna Ceccherelli, Ji Hye Lee, Sonia Magni, Massimo Del Bene, Alessandro Buda
Vulvoperineal defects after demolitive surgery for preneoplastic or malignant vulvar lesions require a reconstruction to restore good sexual functions and to offer a satisfactory cosmetic result. Several techniques of reconstruction have been described in the past, leading to a more conservative and localized treatment. This study retrospectively reviewed patients with primary or recurrent vulvar malignancies that had undergone vulvoperineal reconstruction between 2010 and 2016 using the V-Y advancement flap and the 2 variant of the lotus petal flap (LPF) in terms of surgical outcome and postoperative complications...
May 31, 2017: Annals of Plastic Surgery
https://www.readbyqxmd.com/read/28557852/analysis-of-high-intensity-skating-in-top-class-ice-hockey-match-play-in-relation-to-training-status-and-muscle-damage
#7
Erik Lignell, Dan Fransson, Peter Krustrup, Magni Mohr
We examined high-intensity activities in a top-class ice-hockey game and the effect of training status. Male ice-hockey players (n=36) from the NHL participated. Match-analysis was performed during a game and physical capacity was assessed by a submaximal Yo-Yo Intermittent Recovery Ice-hockey test, level 1 (YYIR1-IHSUB). Venous blood samples were collected 24-h post-game to determine markers of muscle damage. Players performed 119±8 and 31±3 m·min of high-intensity and sprint-skating, respectively, during a game...
May 23, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28556522/prevalence-rates-of-childhood-protective-factors-in-adolescents-with-bpd-psychiatrically-healthy-adolescents-and-adults-with-bpd
#8
Dana B Borkum, Christina M Temes, Laura R Magni, Garrett M Fitzmaurice, Blaise A Aguirre, Marianne Goodman, Mary C Zanarini
OBJECTIVE: Existing literature on the aetiology of borderline personality disorder (BPD) has primarily focused on pathological childhood experiences, while little to no research has been conducted on protective factors that may serve to ameliorate these symptoms. The current study attempts to fill this gap in the literature by comparing the rates of childhood protective factors among adolescents with BPD, psychiatrically healthy adolescents and adults with BPD. METHODS: One hundred and four subjects were adolescent inpatients between the ages of 13 and 17 who met Revised Diagnostic Interview for Borderlines and Diagnostic and Statistical Manual of Mental Disorders Fourth Edition criteria for BPD...
May 28, 2017: Personality and Mental Health
https://www.readbyqxmd.com/read/28556496/prevalence-rates-of-borderline-symptoms-reported-by-adolescent-inpatients-with-bpd-psychiatrically-healthy-adolescents-and-adult-inpatients-with-bpd
#9
Mary C Zanarini, Christina M Temes, Laura R Magni, Garrett M Fitzmaurice, Blaise A Aguirre, Marianne Goodman
OBJECTIVE: The validity of borderline personality disorder (BPD) in children and adolescents has not been studied in a rigorous manner reflecting the criteria of Robins and Guze first detailed in 1970. This paper and the others in this series address some aspects of this multifaceted validation paradigm, which requires that a disorder has a known clinical presentation, can be delimited from other disorders, 'runs' in families, and something of its aetiology, treatment response and course is known...
May 28, 2017: Personality and Mental Health
https://www.readbyqxmd.com/read/28555129/identification-of-atypical-el-torv-cholerae-o1-ogawa-hosting-sxt-element-in-senegal-africa
#10
Bissoume Sambe-Ba, Mamadou H Diallo, Abdoulaye Seck, Abdoul A Wane, Guillaume Constantin de Magny, Cheikh S-B Boye, Ahmad I Sow, Amy Gassama-Sow
Vibrio cholerae O1 is the causative agent of cholera with classical and El Tor, two well-established biotypes. In last 20 years, hybrid strains of classical and El Tor and variant El Tor which carry classical ctxB have emerged worldwide. In 2004-2005, Senegal experienced major cholera epidemic with a number of cases totalling more than 31719 with approximately 458 fatal outcomes (CFR, 1.44%). In this retrospective study, fifty isolates out of a total of 403 V. cholerae biotype El Tor serovar Ogawa isolates from all areas in Senegal during the 2004-2005 cholera outbreak were randomly selected...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28552465/experimental-validation-of-the-complement-protein-c3a-down-expression-in-the-plasma-of-patients-with-squamous-cell-carcinoma-of-the-penis
#11
Paulo Ornellas, Marilza de M Ribeiro-Carvalho, Antonio Augusto Ornellas, Luciano Scherrer, Leandro Koifman, Fulvio Magni, Maria Helena Ornellas, Gilda Alves
OBJECTIVES: We have previously shown the importance of the complement system in differentiating between patients with squamous cell carcinoma of the penis (SCCP) and controls. These patients had low expression of C3a and C4 fragments. Therefore, in this study, we investigated the complement protein C3a as a potential circulating biomarker in these patients by a commercially available enzyme-linked immunosorbent assay (ELISA) test. PATIENTS AND METHODS: Plasma samples from 39 patients with SCCP, 15 patients with prostate cancer, and 50 healthy male subjects were evaluated using the ELISA-Bioscience OptEIA Kit human anti-C3a (BD)...
May 25, 2017: Urologic Oncology
https://www.readbyqxmd.com/read/28545127/improvement-of-alt-decay-kinetics-by-all-oral-hcv-treatment-role-of-ns5a-inhibitors-and-differences-with-ifn-based-regimens
#12
Valeria Cento, Thi Huyen Tram Nguyen, Domenico Di Carlo, Elisa Biliotti, Laura Gianserra, Ilaria Lenci, Daniele Di Paolo, Vincenza Calvaruso, Elisabetta Teti, Maddalena Cerrone, Dante Romagnoli, Michela Melis, Elena Danieli, Barbara Menzaghi, Ennio Polilli, Massimo Siciliano, Laura Ambra Nicolini, Antonio Di Biagio, Carlo Federico Magni, Matteo Bolis, Francesco Paolo Antonucci, Velia Chiara Di Maio, Roberta Alfieri, Loredana Sarmati, Paolo Casalino, Sergio Bernardini, Valeria Micheli, Giuliano Rizzardini, Giustino Parruti, Tiziana Quirino, Massimo Puoti, Sergio Babudieri, Antonella D'Arminio Monforte, Massimo Andreoni, Antonio Craxì, Mario Angelico, Caterina Pasquazzi, Gloria Taliani, Jeremie Guedj, Carlo Federico Perno, Francesca Ceccherini-Silberstein
BACKGROUND: Intracellular HCV-RNA reduction is a proposed mechanism of action of direct-acting antivirals (DAAs), alternative to hepatocytes elimination by pegylated-interferon plus ribavirin (PR). We modeled ALT and HCV-RNA kinetics in cirrhotic patients treated with currently-used all-DAA combinations to evaluate their mode of action and cytotoxicity compared with telaprevir (TVR)+PR. STUDY DESIGN: Mathematical modeling of ALT and HCV-RNA kinetics was performed in 111 HCV-1 cirrhotic patients, 81 treated with all-DAA regimens and 30 with TVR+PR...
2017: PloS One
https://www.readbyqxmd.com/read/28526811/proteomic-analysis-of-cerebrospinal-fluid-from-children-with-central-nervous-system-tumors-identifies-candidate-proteins-relating-to-tumor-metastatic-spread
#13
Filippo Spreafico, Italia Bongarzone, Sara Pizzamiglio, Ruben Magni, Elena Taverna, Maida De Bortoli, Chiara M Ciniselli, Elena Barzanò, Veronica Biassoni, Alessandra Luchini, Lance A Liotta, Weidong Zhou, Michele Signore, Paolo Verderio, Maura Massimino
Central nervous system (CNS) tumors are the most common solid tumors in childhood. Since the sensitivity of combined cerebrospinal fluid (CSF) cytology and radiological neuroimaging in detecting meningeal metastases remains relatively low, we sought to characterize the CSF proteome of patients with CSF tumors to identify biomarkers predictive of metastatic spread. CSF samples from 27 children with brain tumors and 13 controls (extra-CNS non-Hodgkin lymphoma) were processed using core-shell hydrogel nanoparticles, and analyzed with reverse-phase liquid chromatography/electrospray tandem mass spectrometry (LC-MS/MS)...
May 3, 2017: Oncotarget
https://www.readbyqxmd.com/read/28523502/maldi-ms-imaging-in-the-study-of-glomerulonephritis
#14
Andrew Smith, Manuel Galli, Vincenzo L'Imperio, Fabio Pagni, Fulvio Magni
Glomerulonephritis (GNs) are one of the most frequent causes of chronic kidney disease (CKD), a renal condition that often leads to end-stage renal failure, and a careful assessment of these diseases is essential for prognostic and therapeutic purposes. The application of MALDI-MSI directly on bioptic renal tissue represents a new stimulating perspective and facilitates the detection of specific proteomic indicators that are directly correlated with the pathological alterations that occur within the glomeruli during the development of glomerulonephritis...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28523498/maldi-msi-analysis-of-cytological-smears-the-study-of-thyroid-cancer
#15
Niccolò Mosele, Andrew Smith, Manuel Galli, Fabio Pagni, Fulvio Magni
Fine needle aspiration (FNA) biopsies are the current gold-standard for the preoperative evaluation of thyroid nodules. However, a significant number of them (15-30%) are unable to be affirmatively diagnosed and are given an "indeterminate for malignancy" final report, meaning that the malignant nature of the thyroid nodule remains unknown and the recommended therapeutic approach is total thyroidectomy. Furthermore, cytomorphological evaluation of biopsies taken post-surgery indicates that approximately 80% of nodules within this group of patients are in fact benign, and the total thyroidectomy unwarranted...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28506266/impact-of-preterm-birth-on-infant-mortality-for-newborns-with-congenital-heart-defects-the-epicard-population-based-cohort-study
#16
Enora Laas, Nathalie Lelong, Pierre-Yves Ancel, Damien Bonnet, Lucile Houyel, Jean-François Magny, Thibaut Andrieu, François Goffinet, Babak Khoshnood
BACKGROUND: Congenital heart defects (CHD) and preterm birth (PTB) are major causes of infant mortality. However, limited data exist on risk of mortality associated with PTB for newborns with CHD. Our objective was to assess impact of PTB on risk of infant mortality for newborns with CHD, while taking into account the role of associated anomalies and other potentially confounding factors. METHODS: We used data on 2172 live births from a prospective population-based cohort study of CHD (the EPICARD Study) and compared neonatal, post-neonatal and overall infant mortality for infants born at <32, 32-34 and 35-36 weeks vs...
May 15, 2017: BMC Pediatrics
https://www.readbyqxmd.com/read/28501996/application-of-hydrogel-nanoparticles-for-the-capture-concentration-and-preservation-of-low-abundance-biomarkers
#17
Ruben Magni, Alessandra Luchini
In the recent years, a lot of emphasis has been placed on the discovery and detection of clinically relevant biomarkers. Biomarkers are crucial for the early detection of several diseases, and they play an important role in the improvement of current treatments, thus reducing patient mortality rate. Because biofluids account to 60% of the body mass, they represent a goldmine of significant biomarkers. Unfortunately, because of their low concentration in body fluids, their lability, and the presence of high abundance proteins (i...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28468788/circulating-levels-of-proprotein-convertase-subtilisin-kexin-type-9-and-arterial-stiffness-in-a-large-population-sample-data-from-the-brisighella-heart-study
#18
Massimiliano Ruscica, Nicola Ferri, Federica Fogacci, Martina Rosticci, Margherita Botta, Silvia Marchiano, Paolo Magni, Sergio D'Addato, Marina Giovannini, Claudio Borghi, Arrigo F G Cicero
BACKGROUND: Proprotein convertase subtilisin/kexin type 9 (PCSK9) circulating levels are significantly associated with an increased risk of cardiovascular events. This study aimed to evaluate the relationship between circulating levels of PCSK9 and arterial stiffness, an early instrumental biomarker of cardiovascular disease risk, in a large sample of overall healthy participants. METHODS AND RESULTS: From the historical cohort of the Brisighella Heart Study, after exclusion of active smokers, participants in secondary prevention for cardiovascular disease, and patients in treatment with statins or vasodilating agents, we selected 227 premenopausal women and 193 age-matched men and 460 postmenopausal women and 416 age-matched men...
May 3, 2017: Journal of the American Heart Association
https://www.readbyqxmd.com/read/28467880/teprotumumab-for-thyroid-associated-ophthalmopathy
#19
RANDOMIZED CONTROLLED TRIAL
Terry J Smith, George J Kahaly, Daniel G Ezra, James C Fleming, Roger A Dailey, Rosa A Tang, Gerald J Harris, Alessandro Antonelli, Mario Salvi, Robert A Goldberg, James W Gigantelli, Steven M Couch, Erin M Shriver, Brent R Hayek, Eric M Hink, Richard M Woodward, Kathleen Gabriel, Guido Magni, Raymond S Douglas
BACKGROUND: Thyroid-associated ophthalmopathy, a condition commonly associated with Graves' disease, remains inadequately treated. Current medical therapies, which primarily consist of glucocorticoids, have limited efficacy and present safety concerns. Inhibition of the insulin-like growth factor I receptor (IGF-IR) is a new therapeutic strategy to attenuate the underlying autoimmune pathogenesis of ophthalmopathy. METHODS: We conducted a multicenter, double-masked, randomized, placebo-controlled trial to determine the efficacy and safety of teprotumumab, a human monoclonal antibody inhibitor of IGF-IR, in patients with active, moderate-to-severe ophthalmopathy...
May 4, 2017: New England Journal of Medicine
https://www.readbyqxmd.com/read/28455338/the-enzymes-required-for-maltodextrin-catabolism-in-enterococcus-faecalis-exhibit-several-novel-activities
#20
Philippe Joyet, Abdelhamid Mokhtari, Eliette Riboulet-Bisson, Víctor S Blancato, Martin Espariz, Christian Magni, Axel Hartke, Josef Deutscher, Nicolas Sauvageot
Maltose and maltodextrins are formed during the degradation of starch or glycogen. Maltodextrins are composed of a mixture of maltooligosaccharides formed by α-1,4, but also some α-1,6-linked glucosyl residues. The latter are derived from branching points in the polysaccharides. In Enterococcus faecalis, maltotriose is mainly transported and phosphorylated by a phosphoenolpyruvate:carbohydrate phosphotransferase system. The formed maltotriose-6″-P is intracellularly dephosphorylated by a specific phosphatase, MapP...
April 28, 2017: Applied and Environmental Microbiology
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