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https://www.readbyqxmd.com/read/29154940/ebulin-rp-a-novel-member-of-the-ebulin-gene-family-with-low-cytotoxicity-as-a-result-of-deficient-sugar-binding-domains
#1
Rosario Iglesias, J Miguel Ferreras, Antimo Di Maro, Lucía Citores
BACKGROUND: Sambucus ebulus is a rich source of ribosome-inactivating proteins (RIPs) and RIP-related lectins generated from multiple genes. These proteins differ in their structure, enzymatic activity and sugar binding specificity. METHODS: We have purified and characterized ebulin-RP from S. ebulus leaves and determined the amino acid sequence by cDNA cloning. Cytotoxicity was studied in a variety of cancer cells and a comparative study of the ability of ebulin-RP to bind sugars using "in vitro" and "in silico" approaches was performed...
November 15, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/29154905/incidence-of-extra-prostatic-extension-at-radical-prostatectomy-with-pure-gleason-score-3-3-6-grade-group-1-cancer-implications-for-whether-gleason-score-6-prostate-cancer-should-be-renamed-as-not-cancer-and-for-selection-criteria-for-active-surveillance
#2
Oudai Hassan, Misop Han, Amy Zhou, Adina Paulk, Yue Sun, Abdullah Al-Harbi, Ahmed Alrajjal, Filipa Baptista Dos Santos, Jonathan I Epstein
PURPOSE: To assess the risk of locally aggressive behavior in pure Gleason Score 6 (GS6) (Grade Group 1) prostate cancer, using contemporary grading criteria, which has only been studied in one prior cohort. MATERIALS AND METHODS: Consecutive radical prostatectomy (RP) specimens from an academic institution including 3291 men with GS6 and 4202 men with Gleason score 3+4=7 (GS347) (Grade Group 2) between 2005-2016. STATISTICAL ANALYSIS: For dichotomous variables, the Pearson's chi-square test...
November 15, 2017: Journal of Urology
https://www.readbyqxmd.com/read/29154904/risk-of-upgrading-from-prostate-biopsy-to-radical-prostatectomy-pathology-does-saturation-biopsy-of-index-lesion-during-mpmri-trus-fusion-biopsy-help
#3
Brian P Calio, Abhinav Sidana, Dordaneh Sugano, Sonia Gaur, Mahir Maruf, Amit L Jain, Maria J Merino, Peter L Choyke, Bradford J Wood, Peter A Pinto, Baris Turkbey
PURPOSE: To determine if 'saturation' of the index-lesion during MRI-TRUS fusion-guided (fusion) biopsy decreases rate of pathological upgrade from biopsy to radical-prostatectomy (RP). MATERIALS/METHODS: A prospectively maintained single institution database was analyzed for patients who underwent both fusion and systematic biopsy followed by RP (2010-16). Index-lesion was defined as lesion with largest diameter on T2W-MRI. Patients with saturation of the index-lesion (SIL) had transrectal fusion biopsy targets obtained at 6mm intervals along the long axis of index-lesion; patients with nonsaturation of the index-lesion (NSIL) had only one target obtained from the lesion...
November 15, 2017: Journal of Urology
https://www.readbyqxmd.com/read/29153942/metabolic-syndrome-and-low-high-density-lipoprotein-cholesterol-are-associated-with-adverse-pathological-features-in-patients-with-prostate-cancer-treated-by-radical-prostatectomy
#4
Souhil Lebdai, Romain Mathieu, Julie Leger, Olivier Haillot, Sébastien Vincendeau, Nathalie Rioux-Leclercq, Georges Fournier, Marie-Aimée Perrouin-Verbe, Laurent Doucet, Abdel Rahmene Azzouzi, Jérome Rigaud, Karine Renaudin, Thomas Charles, Franck Bruyere, Gaelle Fromont
BACKGROUND: Previous studies have suggested a link between metabolic syndrome (MetS) and prostate cancer (PCa). In the present study, we aimed to assess the association between MetS and markers of PCa aggressiveness on radical prostatectomy (RP). METHODS: All patients consecutively treated for PCa by RP in 6 academic institutions between August 2013 and July 2016 were included. MetS was defined as at least 3 of 5 components (obesity, elevated blood pressure, diabetes, low high-density lipoprotein (HDL)-cholesterol, and hypertriglyceridemia)...
November 16, 2017: Urologic Oncology
https://www.readbyqxmd.com/read/29153885/are-the-results-of-the-prostate-testing-for-cancer-and-treatment-trial-applicable-to-contemporary-prostate-cancer-patients-treated-with-radical-prostatectomy-results-from-two-high-volume-european-institutions
#5
Giorgio Gandaglia, Derya Tilki, Emanuele Zaffuto, Nicola Fossati, Raisa S Pompe, Paolo Dell'Oglio, Markus Graefen, Francesco Montorsi, Alberto Briganti
The Prostate Testing for Cancer and Treatment (ProtecT) trial reported excellent outcomes for patients with localized prostate cancer (PCa) managed with radical prostatectomy (RP), radiotherapy, or active monitoring. We aimed at assessing the generalizability of the ProtecT trial to contemporary patients undergoing RP at two high-volume institutions. Overall, 29147 PCa patients treated with RP between 1999 and 2016 were included. We evaluated changes in disease characteristics over time. Competing-risk analyses estimated the 10-yr cancer-specific mortality (CSM) and other-cause mortality (OCM) rates...
November 16, 2017: European Urology Focus
https://www.readbyqxmd.com/read/29150681/the-structure-function-relationship-measured-with-optical-coherence-tomography-and-a-microperimeter-with-auto-tracking-the-mp-3-in-patients-with-retinitis-pigmentosa
#6
Yuichi Asahina, Marie Kitano, Yohei Hashimoto, Mieko Yanagisawa, Hiroshi Murata, Tatsuya Inoue, Ryo Obata, Ryo Asaoka
The purpose of the current study was to investigate the structure-function relationship in patients with retinitis pigmentosa (RP) using optical coherence tomography and the MP-3 microperimeter. Visual field (VF) measurements were carried out using MP-3 microperimetry and the Humphrey Field Analyzer (HFA, Carl-Zeiss, CA), 22 eyes of 11 patients with a clinical diagnosis of RP, both with the 10-2 test grid pattern. Optical coherence tomography (OCT, Spectralis, Heidelberg, Germany) was also performed and the ellipsoid zone (EZ) was identified in the OCT image...
November 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29150403/the-cortisol-reactivity-threshold-model-direction-of-trait-rumination-and-cortisol-reactivity-association-varies-with-stressor-severity
#7
Suzanne Vrshek-Schallhorn, Bradley M Avery, Maria Ditcheva, Vaibhav R Sapuram
Various internalizing risk factors predict, in separate studies, both augmented and reduced cortisol responding to lab-induced stress. Stressor severity appears key: We tested whether heightened trait-like internalizing risk (here, trait rumination) predicts heightened cortisol reactivity under modest objective stress, but conversely predicts reduced reactivity under more robust objective stress. Thus, we hypothesized that trait rumination would interact with a curvilinear (quadratic) function of stress severity to predict cortisol reactivity...
November 8, 2017: Psychoneuroendocrinology
https://www.readbyqxmd.com/read/29149707/over-expression-of-cyclooxygenase-2-in-increased-reticulated-platelets-leads-to-aspirin-resistance-after-elective-off-pump-coronary-artery-bypass-surgery
#8
Xiaoxuan Gong, Xuezhong Wang, Zhuowen Xu, Tiantian Zhu, Qiu Zhang, Jinying Zhang, Xiaowei Wang, Chunjian Li
INTRODUCTION: Aspirin resistance (AR) has been reported to present after coronary artery bypass graft causing saphenous vein graft failure. We aimed to investigate the factors that affect the anti-platelet effect of aspirin after off-pump coronary artery bypass surgery (OPCAB). MATERIALS AND METHODS: Thirty OPCAB candidates were successively recruited. Platelet count, platelet aggregation, reticulated platelet (RP), platelets' cyclooxygenase (COX)-1 and COX-2 expressions were determined during the peri-operative period...
November 9, 2017: Thrombosis Research
https://www.readbyqxmd.com/read/29148976/small-molecule-photoregulin3-prevents-retinal-degeneration-in-the-rho-p23h-mouse-model-of-retinitis-pigmentosa
#9
Paul A Nakamura, Andy A Shimchuk, Shibing Tang, Zhizhi Wang, Kole DeGolier, Sheng Ding, Thomas A Reh
Regulation of rod gene expression has emerged as a potential therapeutic strategy to treat retinal degenerative diseases like retinitis pigmentosa (RP). We previously reported on a small molecule modulator of the rod transcription factor Nr2e3, Photoregulin1 (PR1), that regulates the expression of photoreceptor-specific genes. Although PR1 slows the progression of retinal degeneration in models of RP in vitro, in vivo analyses were not possible with PR1. We now report a structurally unrelated compound, Photoregulin3 (PR3) that also inhibits rod photoreceptor gene expression, potentially though Nr2e3 modulation...
November 17, 2017: ELife
https://www.readbyqxmd.com/read/29148290/single-centre-experience-with-the-impella-cp-5-0-and-rp-in-109-consecutive-patients-with-profound-cardiogenic-shock
#10
Peter Blom Jensen, Sigrun Høegholm Kann, Karsten Tange Veien, Ole Kristian Møller-Helgestad, Jordi Sanchez Dahl, Charlotte Svejstrup Rud, Marianne Kjær Jensen, Lisette Okkels Jensen, Henrik Schmidt, Jacob Eifer Møller
RATIONALE: Short-term mechanical circulatory support is increasingly used in the management of cardiogenic shock, but data from controlled studies are sparse. Thus, real-life data on complication rates and predictors of adverse outcome are important. OBJECTIVE: The objective of this study was to analyse the experience with Impella devices in the management of profound cardiogenic shock. METHODS AND RESULTS: A retrospective study of 109 consecutive patients with severe shock after myocardial infarction, acute heart failure, or cardiac surgery...
November 1, 2017: European Heart Journal. Acute Cardiovascular Care
https://www.readbyqxmd.com/read/29147852/enhanced-peptide-detection-toward-single-neuron-proteomics-by-reversed-phase-fractionation-capillary-electrophoresis-mass-spectrometry
#11
Sam B Choi, Camille Lombard-Banek, Pablo Muñoz-LLancao, M Chiara Manzini, Peter Nemes
The ability to detect peptides and proteins in single cells is vital for understanding cell heterogeneity in the nervous system. Capillary electrophoresis (CE) nanoelectrospray ionization (nanoESI) provides high-resolution mass spectrometry (HRMS) with trace-level sensitivity, but compressed separation during CE challenges protein identification by tandem HRMS with limited MS/MS duty cycle. Here, we supplemented ultrasensitive CE-nanoESI-HRMS with reversed-phase (RP) fractionation to enhance identifications from protein digest amounts that approximate to a few mammalian neurons...
November 16, 2017: Journal of the American Society for Mass Spectrometry
https://www.readbyqxmd.com/read/29146354/a-novel-calcium-binding-peptide-from-antarctic-krill-protein-hydrolysates-and-identification-of-binding-sites-of-calcium-peptide-complex
#12
Hu Hou, Shikai Wang, Xiao Zhu, Qiqi Li, Yan Fan, Dong Cheng, Bafang Li
Trypsin was used for preparing peptides with high calcium-binding capacity from Antarctic krill. Hydroxyapatite chromatography (HAC), size-exclusion chromatography (SEC), and reversed phase high performance liquid chromatography (RP-HPLC) were used to capture and purify calcium-binding peptides. The peptide sequence was determined to be VLGYIQIR (N- to C-terminal, MW = 960.58 Da), using LTQ Orbitrap XL. According to the results of FTIR and mass spectrometry, chelating site of calcium ions may possibly involve the carbonal or amino groups of Gln, Ile and Arg residues...
March 15, 2018: Food Chemistry
https://www.readbyqxmd.com/read/29145599/a-role-for-thiopurine-metabolites-in-the-synergism-between-thiopurines-and-infliximab-in-inflammatory-bowel-disease
#13
Ditte V Mogensen, Jørn Brynskov, Mark A Ainsworth, Jacob Nersting, Kjeld Schmiegelow, Casper Steenholdt
Background: Interactions between principal cytotoxic thiopurine metabolites, 6-thioguanine nucleotides (6-TGN), and infliximab (IFX) and anti-IFX antibodies (Abs) may contribute to higher effectiveness of IFX-thiopurine-combination therapy than monotherapies in inflammatory bowel disease. Methods: To examine if thiopurine metabolites influenced trough IFX and anti-IFX Abs, 89 patients previously assessed for anti-IFX Abs were included. To assess if IFX influenced thiopurine metabolites, 8 patients having responded to 12 weeks of intensified IFX at a constant thiopurine dosing were included...
November 14, 2017: Journal of Crohn's & Colitis
https://www.readbyqxmd.com/read/29145318/an-unusual-cause-of-fever-of-unknown-origin-with-enlarged-lymph-nodes-relapsing-polychondritis-a-case-report
#14
Wei Liu, Hongli Jiang, Han Jing, Bing Mao
INTRODUCTION: Fever of unknown origin (FUO) is a common initial presentation leading to a diagnostic challenge. PATIENT CONCERNS: A 3-month history of moderate-to-high fever was reported in an otherwise healthy 54-year-old man. Enhanced computed tomography (CT) scans of his chest showed a remarkable progressive enlargement of bilateral cervical, supraclavicular, hilar, and mediastinal lymph nodes within 2 weeks. Bronchofibroscopy manifested obvious luminal stenosis with swelling, thick pale mucosa, and disappearing of structures of trachea cricoid cartilage, followed by a 18F-fluorodeoxyglucose positron-emission tomography-computed tomography (18F-FDG PET/CT) with intense symmetric FDG uptake in larynx, tracheobronchial tree, and hilar, mediastinal, and axillary lymph nodes being demonstrated...
November 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29145208/curcumin-delays-retinal-degeneration-by-regulating-microglia-activation-in-the-retina-of-rd1-mice
#15
Yanhe Wang, Zhiyuan Yin, Lixiong Gao, Dayu Sun, Xisu Hu, Langyue Xue, Jiaman Dai, YuXiao Zeng, Siyu Chen, Boju Pan, Min Chen, Jing Xie, Haiwei Xu
BACKGROUND/AIMS: Retinitis pigmentosa (RP) is characterized by degeneration of photoreceptors, and there are currently no effective treatments for this disease. However, curcumin has shown neuroprotectant efficacy in a RP rat and swine model, and thus, may have neuroprotective effects in this disease. METHODS: Immunofluorescence staining, electroretinogram recordings, and behavioral tests were used to analyze the effects of curcumin and the underlying mechanism in retinal degeneration 1 (rd1) mice...
November 17, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/29145099/degradation-kinetics-study-of-1-palmitoyl-2-linoleoyl-3-acetyl-rac-glycerol-plag-by-a-validated-stability-indicating-rp-hplc-method
#16
Kyeong Soo Kim, Eun Su Yang, Dong Shik Kim, Dong Wuk Kim, Chul Soon Yong, Jong Oh Kim, Sung Giu Jin, Han-Gon Choi
The chemical stability of 1-palmitoyl-2-linoleoyl-3-acetyl-rac-glycerol (PLAG), a therapeutic agent for neutropenia, was investigated using a validated stability-indicating reversed phase high-performance liquid chromatographic (RP-HPLC) method. The forced degradation of PLAG was carried out under the stress conditions of hydrolysis (alkaline, acidic and various pH buffers), oxidation, photolysis and heat. A simple, sensitive, specific, robust, precise and accurate RP-HPLC method was developed and validated for evaluating the degradation kinetics of PLAG...
November 13, 2017: Journal of Pharmaceutical and Biomedical Analysis
https://www.readbyqxmd.com/read/29145025/coupling-of-on-column-trypsin-digestion-peptide-mapping-and-principal-component-analysis-for-stability-and-biosimilarity-assessment-of-recombinant-human-growth-hormone
#17
Sara M Shatat, Basma M Eltanany, Abeer A Mohamed, Medhat A Al-Ghobashy, Faten A Fathalla, Samah S Abbas
Peptide mapping (PM) is a vital technique in biopharmaceutical industry. The fingerprint obtained helps to qualitatively confirm host stability as well as verify primary structure, purity and integrity of the target protein. Yet, in-solution digestion followed by tandem mass spectrometry is not suitable as a routine quality control test. It is time consuming and requires sophisticated, expensive instruments and highly skilled operators. In an attempt to enhance the fuctionality of PM and extract multi-dimentional data about various critical quality attributes and comparability of biosimilars, coupling of PM generated using immobilized trypsin followed by HPLC-UV to principal component analysis (PCA) is proposed...
November 11, 2017: Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences
https://www.readbyqxmd.com/read/29142418/marantodes-pumilum-blume-kuntze-inhibited-secretion-of-lipopolysaccharide-and-monosodium-urate-crystal-stimulated-cytokines-and-plasma-prostaglandin-e2
#18
Eldiza Puji Rahmi, Jamia Azdina Jamal, Endang Kumolosasi, Juriyati Jalil, Nor-Ashila Aladdin
Background: Marantodes pumilum is traditionally used for dysentery, gonorrhea, and sickness in the bones. Previous studies revealed its antibacterial and xanthine oxidase inhibitory activities. Objective: To evaluate the inhibitory effects of three M. pumilum varieties on the secretion of lipopolysaccharide (LPS)- and monosodium urate crystal (MSU)-induced cytokines and plasma prostaglandin E2 (PGE2) in vitro. Materials and Methods: The leaves and roots of M...
October 2017: Pharmacognosy Magazine
https://www.readbyqxmd.com/read/29141908/two-distinct-regulatory-mechanisms-of-transcriptional-initiation-in-response-to-nutrient-signaling
#19
Jannatul Ferdoush, Rwik Sen, Amala Kaja, Priyanka Barman, Sukesh R Bhaumik
SAGA (Spt-Ada-Gcn5-Acetyltransferase) and TFIID (transcription factor IID) have been previously shown to facilitate the PIC (pre-initiation complex) formation at the promoters of two distinct sets of genes. Here, we demonstrate that TFIID and SAGA differentially participate in stimulation of the PIC formation (and hence transcriptional initiation) at the promoter of PHO84, a gene for high affinity inorganic phosphate (Pi) transporter for crucial cellular functions, in response to nutrient signaling. We show that transcriptional initiation of PHO84 occurs predominantly in the TFIID-dependent manner in the absence of Pi in the growth medium...
November 15, 2017: Genetics
https://www.readbyqxmd.com/read/29140474/identification-of-novel-systemic-sclerosis-biomarkers-employing-aptamer-proteomic-analysis
#20
Peter J Wermuth, Sonsoles Piera-Velazquez, Sergio A Jimenez
There is an important unmet need for clinically validated non-invasive biomarkers for SSc diagnosis, assessment of disease activity, extent of internal organ involvement, therapeutic response and prognosis. There is also an unmet need for biomarkers to accurately differentiate primary RP from recent onset RP evolving into SSc. The lack of sensitive and specific biomarkers for SSc and SSc-associated RP is a limitation for the optimal clinical management of these patients. The development of highly sensitive and specific proteomic analysis employing aptamers and the expansion in the number of proteins that can be specifically identified by aptamer proteomics have opened new horizons for biomarker discovery...
November 13, 2017: Rheumatology
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