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Dongping Yu, Zhimou Guo, Aijin Shen, Jingyu Yan, Xuefang Dong, Gaowa Jin, Zhen Long, Lina Liang, Xinmiao Liang
Zwitterionic polymer stationary phases have attracted increasing attention in hydrophilic interaction chromatography (HILIC). In this work, a zwitterionic sulfobetaine functionalized polyacrylamide stationary phase (named TENS) based on porous silica particles was prepared via controlled surface initiated reversible addition-fragmentation transfer (RAFT) polymerization. Instead of traditional methacrylate type sulfobetaine monomer, acrylamide type sulfobetaine monomer, which has higher chemical stability and hydrophicility, was employed in this work...
December 1, 2016: Talanta
Huichao Li, Lu Wang, Kai Sheng, Lina Zou, Baoxian Ye
The nanocomposites of titanium dioxide nanoparticles decorated poly(diallyldimethylammonium chloride)-functionalized graphene (TiO2-PDDA-Gr) were successfully synthesized via a facile and green strategy. The prepared nanocomposites were characterized by X-ray diffraction (XRD), UV-visible spectrophotometry (UV-vis), Fourier Transform infrared spectroscopy (FT-IR) and transmission electron microscopy (TEM). By combining the merits of the PDDA-Gr and TiO2 NPs, a highly sensitive electrochemical sensor was erected to detect esculetin based on the TiO2-PDDA-Gr nanocomposites...
December 1, 2016: Talanta
Qinqin Wang, Lu Wang, Kai Sheng, Lina Zou, Gaiping Li, Baoxian Ye
In this paper, a simple, low cost, highly sensitive voltammetric method for determination of tetrahydropalmatine was described, which was based on a new electrochemical sensor, poly (L-glutamic acid) functionalized electrochemical reduction graphene oxide modified glassy carbon electrode. The electrochemical behavior of tetrahydropalmatine was investigated in detail and some dynamic parameters of electrode process were calculated for the first time. Due to large surface area and good conductivity of proposed sensor, a wider linear range (3...
December 1, 2016: Talanta
Edward Johnston, Hayley Pye, Elisenda Bonet-Carne, Eleftheria Panagiotaki, Dominic Patel, Myria Galazi, Susan Heavey, Lina Carmona, Alexander Freeman, Giorgia Trevisan, Clare Allen, Alexander Kirkham, Keith Burling, Nicola Stevens, David Hawkes, Mark Emberton, Caroline Moore, Hashim U Ahmed, David Atkinson, Manuel Rodriguez-Justo, Tony Ng, Daniel Alexander, Hayley Whitaker, Shonit Punwani
BACKGROUND: Whilst multi-parametric magnetic resonance imaging (mp-MRI) has been a significant advance in the diagnosis of prostate cancer, scanning all patients with elevated prostate specific antigen (PSA) levels is considered too costly for widespread National Health Service (NHS) use, as the predictive value of PSA levels for significant disease is poor. Despite the fact that novel blood and urine tests are available which may predict aggressive disease better than PSA, they are not routinely employed due to a lack of clinical validity studies...
October 21, 2016: BMC Cancer
Lina Jaurigue, Eckehard Schöll, Kathy Lüdge
Many physical systems involve time-delayed feedback or coupling. In such delay systems, noise can give rise to undesirable oscillations at frequencies resonant to the delay times. We investigate how an additional feedback term can suppress noise-induced modulations in delay systems with self-feedback that exhibit deterministic oscillatory dynamics. A simple characteristic equation is derived to predict optimal delay times for the prototypical example of a Stuart-Landau oscillator subject to two feedback terms...
October 7, 2016: Physical Review Letters
Malin Engfeldt, Lina Hagvall, Marléne Isaksson, Mihály Matura, Martin Mowitz, Kristina Ryberg, Berndt Stenberg, Cecilia Svedman, Magnus Bruze
BACKGROUND: In 2014, the fragrance hydroxyisohexyl 3-cyclohexene carboxaldehyde (HICC) was excluded from the Swedish baseline series. OBJECTIVES: To study (i) whether fragrance mix (FM) II with 5% HICC detects more positive reactions than FM II with 2.5% HICC, and (ii) the reproducibility of patch testing with HICC. METHODS: Two thousand one hundred and eighteen dermatitis patients at five Swedish dermatology departments were consecutively tested with FM II 14% pet...
October 21, 2016: Contact Dermatitis
Yu Liu, Jianjun Zhang, Lin Li, Guangliang Yin, Jianhua Zhang, Shan Zheng, Hannah Cheung, Ning Wu, Ning Lu, Xizeng Mao, Longhai Yang, Jiexin Zhang, Li Zhang, Sahil Seth, Huang Chen, Xingzhi Song, Kan Liu, Yongqiang Xie, Lina Zhou, Chuanduo Zhao, Naijun Han, Wenting Chen, Susu Zhang, Longyun Chen, Wenjun Cai, Lin Li, Miaozhong Shen, Ningzhi Xu, Shujun Cheng, Huanming Yang, J Jack Lee, Arlene Correa, Junya Fujimoto, Carmen Behrens, Chi-Wan Chow, William N William, John V Heymach, Waun Ki Hong, Stephen Swisher, Ignacio I Wistuba, Jun Wang, Dongmei Lin, Xiangyang Liu, P Andrew Futreal, Yanning Gao
Multiple synchronous lung cancers (MSLCs) present a clinical dilemma as to whether individual tumours represent intrapulmonary metastases or independent tumours. In this study we analyse genomic profiles of 15 lung adenocarcinomas and one regional lymph node metastasis from 6 patients with MSLC. All 15 lung tumours demonstrate distinct genomic profiles, suggesting all are independent primary tumours, which are consistent with comprehensive histopathological assessment in 5 of the 6 patients. Lung tumours of the same individuals are no more similar to each other than are lung adenocarcinomas of different patients from TCGA cohort matched for tumour size and smoking status...
October 21, 2016: Nature Communications
Thiago Strahler Rivero, Lina Maria Herrera Núñez, Emmy Uehara Pires, Orlando Francisco Amodeo Bueno
[This corrects the article on p. 151 in vol. 6, PMID: 26557098.].
2016: Frontiers in Psychiatry
Vânia Sammartino Mariano, Adriana Tarlá Lorenzi, Cristovam Scapulatempo-Neto, Maíra Degiovani Stein, Julio Cesar Possati Resende, Márcio Antoniazzi, Luisa Lina Villa, José Eduardo Levi, Adhemar Longatto-Filho, José Humberto Tavares Guerreiro Fregnani
OBJECTIVE: To evaluate the reproducibility and accuracy of the HPV16/18-E6 test. METHODS: The study population was comprised of 448 women with a previously abnormal Pap who were referred to the Barretos Cancer Hospital (Brazil) for diagnosis and treatment. Two cervical samples were collected immediately before colposcopy, one for the hr-HPV-DNA test and cytology and the other for the HPV16/18-E6 test using high-affinity monoclonal antibodies (mAb). Women with a histologic diagnosis of cervical intraepithelial neoplasia grade 2 or 3 were considered to be positive cases...
2016: PloS One
Lina Zeldovich
Improvements to RFID technology are making it an increasingly flexible tool for tracking genetically modified rodents, characterizing their natural behaviors, and improving data integrity.
October 20, 2016: Lab Animal
Lina Huang, Xiaofang Liu, Dan Chuai, Yaxin Chen, Ronghai Yu
Flaky FeSiAl alloy/multi-wall carbon nanotube (FeSiAl/MWCNT) composite was fabricated by facile and scalable ball milling method. The morphology and electromagnetic properties of the FeSiAl alloy can be well tuned by controlling the milling time. It is found that the magnetic loss of the FeSiAl alloy is improved by optimizing the milling time due to the increased anisotropy field. Meanwhile the addition of MWCNTs enhances the dielectric loss of the composite by increasing the interfacial polarizations, dipolar polarizations and conductive paths...
October 20, 2016: Scientific Reports
F L Nowrouzian, G Lina, E Hodille, E Lindberg, B Hesselmar, R Saalman, I Adlerberth, A E Wold
According to the hygiene hypothesis, insufficient immune activation by microbes increases the risk of allergy development. Staphylococcus aureus, which is part of the skin and gut microbiota of infants in Western countries, produces a variety of T-cell-activating enterotoxins, called superantigens. We investigated whether early (0-2 months of age) gut colonisation by S. aureus strains that carry specific superantigens and adhesins was related to subsequent development of atopic eczema in a Swedish birth-cohort...
October 19, 2016: British Journal of Dermatology
Kensuke Hori, Tomohiko Tsuruta, Chihiro Odani, Hitomi Ono, Rieko Ohkubo, Kanoko Shimoji, Junko Murakami, Mio Nakagawa, Lina Tashima, Kimihiko Ito
OBJECTIVES: Treatment for ovarian cancer with bevacizumab(Bmab)has been covered by public medical insurance in Japan since November 2013. It is recommended that the use of Bmab is limited to the first treatment for FIGO stage III or IV ovarian cancer. The OCEAN trial for platinum sensitivity in relapsed patients and the AURELIA trial for platinum-resistance in relapsed patients were performed, and both significantly improved progression-free survival. METHOD: We retrospectively studied patients receiving Bmab with an anticancer agent for recurrent ovarian cancer...
October 2016: Gan to Kagaku Ryoho. Cancer & Chemotherapy
Yimin Qiu, Dongmei Chen, Xiaojing Huang, Lina Huang, Liang Tang, Jihong Jiang, Lianhua Chen, Shitong Li
BACKGROUND: Limited surveys have assessed the performance of 5-hydroxytreptamine receptor 1A and its antagonist WAY-100635 in pharmacological manipulations targeting delirium therapies. The purpose of this paper was to assess the central pharmacological activity of WAY-100635 in a rat model of scopolamine-induced delirium and its underlying mechanism. RESULTS: A delirium rat model was established by intraperitoneal injection of scopolamine and behavioral changes evaluated through open field and elevated plus maze experiments...
October 19, 2016: BMC Neuroscience
Josseanne Maria Teixeira, Maria do Carmo De Carvalho Martins, Luanne Fortes Monte Soares, Ana Lina De Carvalho Cunha Sales, Daiane Cristina Ferreira Damasceno, Francisco Valmor Macedo Cunha, Regina Célia De Assis, José Carlos Santos Júnior, Nivea Maria Da Costa Sousa
INTRODUCTION: Food and dietetic components have received considerable attention as auxiliary feeding resources on controlling of chronic non-transmissible diseases, among them diabetes. This study evaluated the effect of supplementary diet with multimixture based on linseed, sesame, oats and sunflower seeds on the hepatic function and antioxidant activity of diabetic rats. METHODS: Male rats were distributed on groups of seven animals: diabetic control (DC), diabetics subject to multimixture diet (DM), diabetic with insulin (DI), and normal control (NC)...
September 20, 2016: Nutrición Hospitalaria: Organo Oficial de la Sociedad Española de Nutrición Parenteral y Enteral
Songjia Lu, Chunhui Cai, Gonghong Yan, Zhuan Zhou, Yong Wan, Vicky Chen, Lujia Chen, Gregory F Cooper, Lina M Obeid, Yusuf A Hannun, Adrian V Lee, Xinghua Lu
Defining processes that are synthetic lethal with p53 mutations in cancer cells may reveal possible therapeutic strategies. In this study, we report the development of a signal-oriented computational framework for cancer pathway discovery in this context. We applied our bipartite-graph-based functional module discovery algorithm to identify transcriptomic modules abnormally expressed in multiple tumors, such that the genes in a module were likely regulated by a common, perturbed signal. For each transcriptomic module, we applied our weighted k-path merge algorithm to search for a set of somatic genome alterations (SGA) that likely perturbed the signal, i...
October 10, 2016: Cancer Research
Darja Kušar, Karin Šrimpf, Petra Isaković, Lina Kalšek, Javid Hosseini, Irena Zdovc, Tina Kotnik, Modest Vengušt, Gabrijela Tavčar-Kalcher
BACKGROUND: Bacterial intercellular communication, called quorum sensing, takes place via the production and collective response to signal molecules. In Gram-negative bacteria, like Pseudomonas aeruginosa, these signaling molecules are N-acylhomoserine lactones (AHLs). P. aeruginosa is a common cause of inflammation of the ear canal (otitis externa) in dogs. It employs quorum sensing to coordinate the expression of host tissue-damaging factors, which are largely responsible for its virulence...
October 18, 2016: BMC Veterinary Research
Jie Qin, Yusuke Arakawa, Miwa Morita, John J Fung, Shiguang Qian, Lina Lu
BACKGROUND: Islet transplantation is a promising therapeutic approach for restore the physical response to blood glucose in type 1 diabetes. Current chronic use of immunosuppressive reagents for preventing islet allograft rejection is associated with severe complications. In addition, many of the immunosuppressive drugs are diabetogenic. The induction of transplant tolerance to eliminate the dependency on immunosuppression is ideal, but remains challenging. METHODS: Addition of hepatic stellate cells allowed generation of myeloid-derived suppressor cells (MDSC) from precursors in mouse bone marrow...
October 17, 2016: Transplantation
Gustavo Bergonzoli, Luis G Castellanos, Rodolfo Rodríguez, Lina María Garcia
Objectives To explore the relationships among social, economic, environmental, and health services determinants of tuberculosis (TB) morbidity and mortality, and to identify the mechanisms that mediate such associations in countries of Latin America and the Caribbean (LAC). Methods This was an ecological study of 26 LAC countries that had accurate data available on 38 selected variables for the year 2010. The countries represented 99% of the TB burden in LAC. Multivariate linear regression was used to identify associations among determinants of health and TB morbidity and mortality...
February 2016: Revista Panamericana de Salud Pública, Pan American Journal of Public Health
Jing Wang, Meizhu Zheng, Lina Chen, Zhiqiang Liu, Yuchi Zhang, Chun-Ming Liu, Shu Liu
Hydroxyl radicals are the most reactive free radical of human body, a strong contributor to tissue damage. In this study, liquid chromatography coupled to electrospray ionization mass spectrometry was applied to screen and identify hydroxyl radical scavengers from the total flavonoids of Ginkgo biloba leaves, and high-performance counter current chromatography was used to separate and isolate the active compounds. Furthermore, molecular devices was used to determine hydroxyl radical scavenging activities of the obtained hydroxyl radical scavengers and other flavonoids from Ginkgo biloba leaves...
October 18, 2016: Journal of Separation Science
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