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https://www.readbyqxmd.com/read/28636684/balanced-work-function-as-a-driver-for-facile-hydrogen-evolution-reaction-comprehension-and-experimental-assessment-of-interfacial-catalytic-descriptor
#1
Aleksandar R Zeradjanin, Ashokanand Vimalanandan, George Polymeros, Angel A Topalov, Karl J J Mayrhofer, Michael Rohwerder
A major step in the development of (electro)catalysis would be the possibility to estimate accurately the energetics of adsorption processes related to reaction intermediates. Computational chemistry (e.g. using DFT) developed significantly in that direction and allowed the fast prediction of (electro)catalytic activity trends and improved the general understanding of adsorption at electrochemical interfaces. However, building a reliable and comprehensive picture of electrocatalytic reactions undoubtedly requires experimental assessment of adsorption energies...
June 21, 2017: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/28636655/changes-in-inflammatory-biomarkers-in-hcv-infected-patients-undergoing-direct-acting-antiviral-containing-regimens-with-or-without-interferon
#2
Claudia Mascia, Serena Vita, Paola Zuccalà, Raffaella Marocco, Tiziana Tieghi, Stefano Savinelli, Raffaella Rossi, Marco Iannetta, Irene Pozzetto, Caterina Furlan, Fabio Mengoni, Claudio Maria Mastroianni, Vincenzo Vullo, Miriam Lichtner
BACKGROUND AND AIMS: Increased levels of chemokine interferon-gamma (IFN-γ)-inducible protein-10 (CXCL10), soluble CD163 (sCD163) and soluble CD14 (sCD14) have been reported in HCV infection. The aim of this study was to compare, sCD163 and sCD14 levels in HCV-infected patients undergoing direct acting antiviral (DAA)-containing regimens with or without interferon (IFN). METHODS: sCD163, sCD14 and CXCL10 were longitudinally measured by ELISA in 159 plasma samples from 25 HCV-infected patients undergoing IFN-based treatment plus telaprevir or boceprevir and 28 HCV infected subjects treated with DAA IFN-free regimens...
2017: PloS One
https://www.readbyqxmd.com/read/28636648/cost-effectiveness-of-pazopanib-versus-sunitinib-for-metastatic-renal-cell-carcinoma-in-the-united-kingdom
#3
Jordan Amdahl, Jose Diaz, Arati Sharma, Jinhee Park, David Chandiwana, Thomas E Delea
BACKGROUND: Sunitinib and pazopanib are the only two targeted therapies for the first-line treatment of locally advanced or metastatic renal cell carcinoma (mRCC) recommended by the United Kingdom's National Institute for Health and Care Excellence. Pazopanib demonstrated non-inferior efficacy and a differentiated safety profile versus sunitinib in the phase III COMPARZ trial. The current analysis provides a direct comparison of the cost-effectiveness of pazopanib versus sunitinib from the perspective of the United Kingdom's National Health Service based on data from COMPARZ and other sources...
2017: PloS One
https://www.readbyqxmd.com/read/28636605/catalytic-allylic-oxidation-of-internal-alkenes-to-a-multifunctional-chiral-building-block
#4
Liela Bayeh, Phong Q Le, Uttam K Tambar
The stereoselective oxidation of hydrocarbons is one of the most notable advances in synthetic chemistry over the past fifty years. Inspired by nature, enantioselective dihydroxylations, epoxidations and other oxidations of unsaturated hydrocarbons have been developed. More recently, the catalytic enantioselective allylic carbon-hydrogen oxidation of alkenes has streamlined the production of pharmaceuticals, natural products, fine chemicals and other functional materials. Allylic functionalization provides a direct path to chiral building blocks with a newly formed stereocentre from petrochemical feedstocks while preserving the olefin functionality as a handle for further chemical elaboration...
June 21, 2017: Nature
https://www.readbyqxmd.com/read/28636489/evaluation-of-countermeasures-for-red-light-running-by-traffic-simulator-based-surrogate-safety-measures
#5
Changju Lee, Jaehyun Jason So, Jiaqi Ma
OBJECTIVE: The conflicts among motorists entering a signalized intersection with the red light indication have become a national safety issue. Because of its sensitivity, efforts have been made to investigate the possible causes and effectiveness of countermeasures by the comparison sites and/or before-and-after studies. Nevertheless, these approaches are ineffective when comparison sites cannot be found, or crash data sets are not readily available or not reliable for statistical analysis...
June 21, 2017: Traffic Injury Prevention
https://www.readbyqxmd.com/read/28636427/liver-directed-therapy-in-metastatic-colorectal-cancer
#6
Ciara M Kelly, Nancy E Kemeny
Colorectal cancer is a significant global health issue with over 1 million cases diagnosed annually throughout the world. 15% of patients diagnosed with colorectal cancer will have liver metastases and 60% will develop liver metastases if they have metastatic disease. Oligometastatic colorectal cancer confined to the liver represents an intermediate state in the evolution of metastatic capacity that opens the opportunity for local interventions. Area's covered: The literature supports long-term survival if patients undergo liver resection of colorectal metastases...
June 21, 2017: Expert Review of Anticancer Therapy
https://www.readbyqxmd.com/read/28636382/development-of-efficient-chemistry-to-generate-site-specific-disulfide-linked-protein-and-peptide-payload-conjugates-application-to-thiomab%C3%A2-antibody-drug-conjugates
#7
Jack David Sadowsky, Thomas H Pillow, Jinhua Chen, Fang Fan, Changrong He, Yanli Wang, Gang Yan, Hui Yao, Zijin Xu, Shanique Martin, Donglu Zhang, Phillip Chu, Josefa Dela Cruz-Chuh, Aimee O'Donohue, Guangmin Li, Geoffrey Del Rosario, Jintang He, Luna Liu, Carl K Ng, Dian Su, Gail D Lewis Phillips, Katherine Ruth Kozak, Shang-Fan Yu, Keyang Xu, Douglas Leipold, John S Wai
Conjugation of small molecule payloads to specific cysteine residues on proteins via a disulfide bond represents an attractive strategy to generate redox-sensitive bioconjugates, which have value as potential diagnostic reagents or therapeutics. Advancement of such "direct-disulfide" bioconjugates to the clinic necessitates chemical methods to form disulfide connections efficiently, without byproducts. The disulfide connection must also be resistant to premature cleavage by thiols prior to arrival at the targeted tissue...
June 21, 2017: Bioconjugate Chemistry
https://www.readbyqxmd.com/read/28636366/oxygenation-via-c-h-c-c-bond-activation-with-molecular-oxygen
#8
Yu-Feng Liang, Ning Jiao
The selective oxidation of organic molecules is a fundamentally important component of modern synthetic chemistry. In the past decades, direct oxidative C-H and C-C bond functionalization has proved to be one of the most efficient and straightforward methods to synthesize complex products from simple and readily available starting materials. Among these oxidative processes, the use of molecular oxygen as a green and sustainable oxidant has attracted considerable attention because of its highly atom-economical, abundant, and environmentally friendly characteristics...
June 21, 2017: Accounts of Chemical Research
https://www.readbyqxmd.com/read/28635986/optimism-symptom-distress-illness-appraisal-and-coping-in-patients-with-advanced-stage-cancer-diagnoses-undergoing-chemotherapy-treatment
#9
Catherine Sumpio, Sangchoon Jeon, Laurel L Northouse, M Tish Knobf
PURPOSE/OBJECTIVES: To explore the relationships between optimism, self-efficacy, symptom distress, treatment complexity, illness appraisal, coping, and mood disturbance in patients with advanced-stage cancer.
. DESIGN: Cross-sectional study.
. SETTING: Smilow Cancer Hospital at Yale New Haven in Connecticut, an outpatient comprehensive cancer center.
. SAMPLE: A convenience sample of 121 adult patients with stages III-IV cancer undergoing active chemotherapy...
May 1, 2017: Oncology Nursing Forum
https://www.readbyqxmd.com/read/28635614/advanced-treatment-planning-using-direct-4d-optimisation-for-pencil-beam-scanned-particle-therapy
#10
Kinga Bernatowicz, Ye Zhang, Rosalind Lucy Perrin, Damien Charles Weber, Antony John Lomax
We report on development of a new four-dimensional (4D) optimisation approach for scanned proton beams, which incorporates both irregular motion patterns and the delivery dynamics of the treatment machine into the plan optimiser. Furthermore, we assess the effectiveness of this technique to reduce dose to critical structures in proximity to moving targets, while maintaining effective target dose homogeneity and coverage. The proposed approach has been tested using both a simulated phantom and a clinical liver cancer case, and allows for realistic 4D calculations and optimisation using irregular breathing patterns extracted from e...
June 21, 2017: Physics in Medicine and Biology
https://www.readbyqxmd.com/read/28635506/an-individualised-acoustically-transparent-earpiece-for-hearing-devices
#11
Florian Denk, Marko Hiipakka, Birger Kollmeier, Stephan M A Ernst
OBJECTIVE: An important and often still unresolved problem of hearing devices such as assistive listening devices and hearing aids is limited user acceptance - a primary reason is poor conservation quality of the acoustic environment. Approaching a possible solution to this problem, an earpiece prototype is presented and evaluated. The prototype is individually and automatically calibrated in situ to provide acoustical transparency, i.e., achieving an audio perception alike to the open ear...
March 1, 2017: International Journal of Audiology
https://www.readbyqxmd.com/read/28635382/white-cell-and-platelet-content-affects-the-release-of-bioactive-factors-in-different-blood-derived-scaffolds
#12
S Cabaro, V D'Esposito, R Gasparro, F Borriello, F Granata, G Mosca, F Passaretti, J C Sammartino, F Riccitiello, F Beguinot, P Formisano, G Sammartino
Platelet-derived factors are biomaterials that might accelerate healing process in oral, maxillofacial, and several other applications. Release of specific factors by platelet concentrates is critical to achieving a successful outcome. Here, we have shown that platelet-rich fibrin (PRF) clots were beneficial sources of leukocytes, which may directly affect the release of chemokines and growth factors. When compared with the standard leukocyte-PRF (L-PRF), the experimental low-force modified procedure [defined as advanced-PRF (A-PRF)] entrapped the same content of viable leukocytes, released a similar amount of inflammatory cytokines, but secreted 3-, 1...
June 21, 2017: Platelets
https://www.readbyqxmd.com/read/28634519/prevalence-and-risk-factors-of-heart-failure-in-the-usa-nhanes-2013-2014-epidemiological-follow-up-study
#13
Saketram Komanduri, Yogesh Jadhao, Sai S Guduru, Pramil Cheriyath, Yijin Wert
Background: Heart Failure (HF) is a progressive epidemic associated with considerable morbidity and mortality. Self-reported data from the National Health and Nutrition Examination Survey (NHANES) provides a unique representation of individuals suffering from HF. The purpose of this study is to analyze updated NHANES 2013-2014 data to identify any changes in the prevalence and current risk factors of HF, especially given the novel lifestyles and increased medical awareness of current generations. Methods: NHANES uses a multistage probability sampling design under the Centers for Disease Control and Prevention (CDC)...
January 2017: Journal of Community Hospital Internal Medicine Perspectives
https://www.readbyqxmd.com/read/28634343/falling-direction-can-predict-the-mechanism-of-recurrent-falls-in-advanced-parkinson-s-disease
#14
Jinyoung Youn, Yasuyuki Okuma, Minho Hwang, Dongyeop Kim, Jin Whan Cho
Falls are a common and disabling symptom in patients with Parkinson's disease (PD). For prevention, it is important to understand the pathophysiology of falls in PD patients, but the predictors for the possible mechanisms underlying such falls have not been clearly elucidated. In this prospective observational study, we investigated the implications of falling direction to predict the mechanisms of recurrent falls in PD patients. We enrolled 62 recurrent fallers with PD and divided them into two groups according to the main falling directions: 45 PD fallers who fell forward (forward fallers), and 17 PD fallers who fell in the other directions (non-forward fallers)...
June 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28634267/30-years-of-the-mineralocorticoid-receptor-the-role-of-the-mineralocorticoid-receptor-in-the-vasculature
#15
REVIEW
Jennifer J DuPont, Iris Z Jaffe
Since the mineralocorticoid receptor (MR) was cloned 30 years ago, it has become clear that MR is expressed in extra-renal tissues, including the cardiovascular system, where it is expressed in all cells of the vasculature. Understanding the role of MR in the vasculature has been of particular interest as clinical trials show that MR antagonism improves cardiovascular outcomes out of proportion to changes in blood pressure. The last 30 years of research have demonstrated that MR is a functional hormone-activated transcription factor in vascular smooth muscle cells and endothelial cells...
July 2017: Journal of Endocrinology
https://www.readbyqxmd.com/read/28634044/mir-218-suppresses-gastric-cancer-cell-cycle-progression-through-the-cdk6-cyclin-d1-e2f1-axis-in-a-feedback-loop
#16
Min Deng, Chao Zeng, Xihong Lu, Xiusheng He, Ruixin Zhang, Qinwei Qiu, Guopei Zheng, Xiaoting Jia, Hao Liu, Zhimin He
Studies in several cancers have suggested that miR-218 has anti-tumor activities, but its function is yet to be elucidated. In this study, we investigated the regulation and function of miR-218 (miR-218-5p) in the cell cycle progression of gastric cancer (GC). We found that miR-218 could suppress proliferation of gastric cancer cells, induce cell cycle arrest at the G1 phase and inhibit tumor growth and metastasis in vivo. We also demonstrated that miR-218 specifically targeted the 3'-UTR regions of CDK6 and cyclin D1 and inhibited the expression of these molecules, which in turn repressesed the pRb/E2F1 signaling pathway...
June 17, 2017: Cancer Letters
https://www.readbyqxmd.com/read/28633655/inhibition-of-mmp-2-and-mmp-9-decreases-cellular-migration-and-angiogenesis-in-in-vitro-models-of-retinoblastoma
#17
Anderson H Webb, Bradley T Gao, Zachary K Goldsmith, Andrew S Irvine, Nabil Saleh, Ryan P Lee, Justin B Lendermon, Rajini Bheemreddy, Qiuhua Zhang, Rachel C Brennan, Dianna Johnson, Jena J Steinle, Matthew W Wilson, Vanessa M Morales-Tirado
BACKGROUND: Retinoblastoma (Rb) is the most common primary intraocular tumor in children. Local treatment of the intraocular disease is usually effective if diagnosed early; however advanced Rb can metastasize through routes that involve invasion of the choroid, sclera and optic nerve or more broadly via the ocular vasculature. Metastatic Rb patients have very high mortality rates. While current therapy for Rb is directed toward blocking tumor cell division and tumor growth, there are no specific treatments targeted to block Rb metastasis...
June 20, 2017: BMC Cancer
https://www.readbyqxmd.com/read/28633363/development-initial-testing-and-challenges-of-an-ecologically-valid-reward-prediction-error-fmri-task-for-alcoholism
#18
Anita Cservenka, Kelly E Courtney, Dara G Ghahremani, Kent E Hutchison, Lara A Ray
Aims: To advance translational studies of the role of reward prediction error (PE) in alcohol use disorder, the present study sought to develop and conduct an initial test of an alcohol-specific PE task paradigm using functional magnetic resonance imaging in humans. Methods: Alcohol dependent or social drinkers received small tastes of their preferred alcohol beverage or control beverage, with preceding visual cues indicating whether alcohol (or water) would be delivered...
June 14, 2017: Alcohol and Alcoholism: International Journal of the Medical Council on Alcoholism
https://www.readbyqxmd.com/read/28633121/biomaterials-based-strategies-for-rotator-cuff-repair
#19
REVIEW
Song Zhao, Wei Su, Vishva Shah, Divia Hobson, Lara Yildirimer, Kelvin W K Yeung, Jinzhong Zhao, Wenguo Cui, Xin Zhao
Tearing of the rotator cuff commonly occurs as among one of the most frequently experienced tendon disorders. While treatment typically involves surgical repair, failure rates to achieve or sustain healing range from 20 to 90%. The insufficient capacity to recover damaged tendon to heal to the bone, especially at the enthesis, is primarily responsible for the failure rates reported. Various types of biomaterials with special structures have been developed to improve tendon-bone healing and tendon regeneration, and have received considerable attention for replacement, reconstruction, or reinforcement of tendon defects...
June 6, 2017: Colloids and Surfaces. B, Biointerfaces
https://www.readbyqxmd.com/read/28632723/mir-646-inhibited-cell-proliferation-and-emt-induced-metastasis-by-targeting-foxk1-in-gastric-cancer
#20
P Zhang, W M Tang, H Zhang, Y Q Li, Y Peng, J Wang, G N Liu, X T Huang, J J Zhao, G Li, A M Li, Y Bai, Y Chen, Y X Ren, G X Li, Y D Wang, S D Liu, J D Wang
BACKGROUND: MiR-646 has been reported to be aberrantly expressed in human cancers. However, the underlying molecular mechanisms of action of miR-646 in gastric cancer (GC) have not yet been investigated. METHODS: In vitro function of miR-646 in GC was evaluated using EdU assay, plate colony formation assay, and matrigel invasion assay. Real-time PCR or western blotting was performed to detect miR-646 and FOXK1 expressions. In vivo tumour growth and metastasis were conducted in nude mice...
June 20, 2017: British Journal of Cancer
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