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Precision medicine

Jie Gao, Jun Li, Wen-Chao Geng, Fang-Yuan Chen, Xingchen Duan, Zhe Zheng, Dan Ding, Dong-Sheng Guo
Activatable phototheranostics is highly appealing to meet the demand of precision medicine. However, although displaying the efficacy in construction of activatable photosensitizers (PSs), direct covalent decoration still shows some inevitable issues, such as complex molecular design, tedious synthesis, possible photoactivity changes and potential toxicity. Herein, we propose a novel concept of biomarker displacement activation (BDA) using host-guest strategy. To exemplify BDA, we engineered a PS-loaded nanocarrier by utilizing a macrocyclic amphiphile, where the fluorescence and photoactivity of PS were completely annihilated by the complexation of macrocyclic receptor (OFF state)...
March 21, 2018: Journal of the American Chemical Society
Weijuan Du, Lisha Jin, Liping Li, Wei Wang, Su Zeng, Huidi Jiang, Hui Zhou
The tuber of Corydalis yanhusuo is a famous traditional Chinese medicine and found to have potent pharmacological effects, such as antinociceptive, antitumor, antibacterial, anti-inflammatory, and anti-depressive activities. Although there are several methods to be developed for the analysis and detection of the bioactive ingredients' alkaloids, so far, only few prominent alkaloids could be quantified, and in vitro and in vivo changes of comprehensive alkaloids after oral administration are still little known...
March 21, 2018: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
Susan M Tarlo, Piero Maestrelli
No abstract text is available yet for this article.
March 19, 2018: Current Opinion in Allergy and Clinical Immunology
Ioana Agache, Liliana Rogozea
PURPOSE OF REVIEW: The precision medicine concept is both appealing and challenging. We review here the recent findings in the endotype-driven approach for major allergic diseases. RECENT FINDINGS: Stratified medicine for different allergic diseases can identify patients who are more likely to benefit or experience an adverse reaction in response to a given therapy and anticipate their long-term outcome and vital risk. In addition, this approach potentially facilitates drug development and prevention strategies...
March 20, 2018: Current Opinion in Allergy and Clinical Immunology
Jane E Wilcox, Ray E Hershberger
PURPOSE OF REVIEW: To describe recent advancements in cardiovascular genetics made possible by leveraging next-generation sequencing (NGS), and to provide a framework for practical applications of genetic testing for hypertrophic (HCM), dilated (DCM), and arrhythmogenic right ventricular cardiomyopathies (ARVC). RECENT FINDINGS: The availability of NGS has made possible extensive reference databases. These, combined with recent initiatives to compile previously siloed commercial and research cardiomyopathy data sets, provide a more powerful and precise approach to cardiovascular genetic medicine...
March 19, 2018: Current Opinion in Cardiology
Marzia Dolcino, Andrea Pelosi, Piera Filomena Fiore, Giuseppe Patuzzo, Elisa Tinazzi, Claudio Lunardi, Antonio Puccetti
Systemic sclerosis (SSc) is a rare connective tissue disease characterized by three pathogenetic hallmarks: vasculopathy, dysregulation of the immune system, and fibrosis. A particular feature of SSc is the increased frequency of some types of malignancies, namely breast, lung, and hematological malignancies. Moreover, SSc may also be a paraneoplastic disease, again indicating a strong link between cancer and scleroderma. The reason of this association is still unknown; therefore, we aimed at investigating whether particular genetic or epigenetic factors may play a role in promoting cancer development in patients with SSc and whether some features are shared by the two conditions...
2018: Frontiers in Immunology
Daniel Moreno-De-Luca, Michael E Ross, David A Ross
No abstract text is available yet for this article.
April 15, 2018: Biological Psychiatry
Dominique De Clercq, Barbara Broux, Lisse Vera, Annelies Decloedt, Gunther van Loon
BACKGROUND: In human and veterinary medicine, monophasic action potential (MAP) analysis and determination of local refractory periods by contact electrode technique gives valuable information about local cardiac electrophysiological properties. It is used to investigate dysrhythmias and the impact of drugs on the myocardium. Precise measurement of total MAP duration is difficult, therefore the MAP duration is usually determined at a repolarization level of 90% (APD90). Until now, no studies are published about the feasibility of this technique in the standing non-sedated horse...
March 20, 2018: BMC Veterinary Research
Jose Luis Lopez-Campos, Stefano Centanni
The study of airway diseases continues to present several challenges for modern medicine. The different disease presentations with variables and overlapping features may result in a real challenge for the clinician. In this context, the concept of precision medicine has started to emerge in order to give answers to some of these challenges from a diagnostic and therapeutic point of view. The main reasons to target for precision medicine in chronic obstructive pulmonary disease (COPD) include that there is variability in the clinical presentation, there is no correlation between the different clinical variables at the patient level, there are a number of relevant clinical variables associated with outcomes, we do have specific therapies for specific patient types, and that there is variability in the clinical response to different therapies...
March 20, 2018: COPD
Peter J Turnbaugh
Although the importance of human genetic polymorphisms in therapeutic outcomes is well established, the role of specific genotypic or copy number variants in our "second genome" (the microbiome) has been largely overlooked. In this Perspective, I will discuss three major barriers to integrating metagenomics into pharmacology, highlighting ongoing research by us and others that has begun to shed light on the mechanisms that link the human microbiome to the efficacy and toxicity of small-molecule and biological therapies...
March 2018: MSystems
Lukas Perkhofer, Anett Illing, Johann Gout, Pierre-Olivier Frappart, Alexander Kleger
No abstract text is available yet for this article.
January 2018: Oncoscience
Xiangchun Li, Weiqi Xu, Wei Kang, Sunny H Wong, Mengyao Wang, Yong Zhou, Xiaodong Fang, Xiuqing Zhang, Huanming Yang, Chi H Wong, Ka F To, Stephen L Chan, Matthew T V Chan, Joseph J Y Sung, William K K Wu, Jun Yu
Objective: Hepatocellular carcinoma (HCC) is a highly heterogeneous disease with a dismal prognosis. However, driver genes and prognostic markers in HCC remain to be identified. It is hoped that in-depth analysis of HCC genomes in relation to available clinicopathological information will give rise to novel molecular prognostic markers. Methods: We collected genomic data of 1,061 HCC patients from previous studies, and performed integrative analysis to identify significantly mutated genes and molecular prognosticators...
2018: Theranostics
Xianhua Zhang, Linran Han, Jin Liu, Qiuyue Xu, Yuxin Guo, Wan Zheng, Jian Wang, Xi Huang, Ping Ren
In the present study, the pharmacokinetics of multi-components (naringenin, nobiletin, meranzin hydrate, narirutin, naringin, hesperidin, and neohesperidin) were investigated in acute depressive rats following oral administration of Fructus Aurantii (Zhi-Qiao, ZQ) extract (20 g/kg). A rapid and reliable liquid chromatography-tandem mass spectrometry (LC-MS/MS) method was established to quantitatively or qualitatively analyze the 7 absorbed ingredients in the plasma, hippocampus and cortex of acute depressive rats...
2018: Frontiers in Pharmacology
Guojun Yan, Wei Sun, Yanfang Pei, Zhaogang Yang, Xiaobing Wang, Yuan Sun, Shangtian Yang, Jinhuo Pan
Purpose : To establish a novel release kinetics evaluation method of Chinese compound medicine (Sedum Sarmentosum compound) with xCELLigence Real-Time Cell-based Assay (RTCA) system. Methods : Cell lines sensitive to Sedum Sarmentosum compound are screened, and cell index-time (CI-T) graphs and cell index release kinetics models are established based on the cell index (CI) monitored. The methodological studies of precision and repeatability were processed by the cell monitors system. The release profiles of the sustained-release Sedum Sarmentosum compound were determined...
March 2018: Saudi Pharmaceutical Journal: SPJ: the Official Publication of the Saudi Pharmaceutical Society
Bradley A Perkins, C Thomas Caskey, Pamila Brar, Eric Dec, David S Karow, Andrew M Kahn, Ying-Chen Claire Hou, Naisha Shah, Debbie Boeldt, Erin Coughlin, Gabby Hands, Victor Lavrenko, James Yu, Andrea Procko, Julia Appis, Anders M Dale, Lining Guo, Thomas J Jönsson, Bryan M Wittmann, Istvan Bartha, Smriti Ramakrishnan, Axel Bernal, James B Brewer, Suzanne Brewerton, William H Biggs, Yaron Turpaz, J Craig Venter
Reducing premature mortality associated with age-related chronic diseases, such as cancer and cardiovascular disease, is an urgent priority. We report early results using genomics in combination with advanced imaging and other clinical testing to proactively screen for age-related chronic disease risk among adults. We enrolled active, symptom-free adults in a study of screening for age-related chronic diseases associated with premature mortality. In addition to personal and family medical history and other clinical testing, we obtained whole-genome sequencing (WGS), noncontrast whole-body MRI, dual-energy X-ray absorptiometry (DXA), global metabolomics, a new blood test for prediabetes (Quantose IR), echocardiography (ECHO), ECG, and cardiac rhythm monitoring to identify age-related chronic disease risks...
March 19, 2018: Proceedings of the National Academy of Sciences of the United States of America
M Urpi-Sarda, E Almanza-Aguilera, R Llorach, R Vázquez-Fresno, R Estruch, D Corella, J V Sorli, F Carmona, A Sanchez-Pla, J Salas-Salvadó, C Andres-Lacueva
AIM: To characterize the urinary metabolomic fingerprint and multi-metabolite signature associated with type 2 diabetes (T2D), and to classify the population into metabotypes related to T2D. METHODS: A metabolomics analysis using the1 H-NMR-based, non-targeted metabolomic approach was conducted to determine the urinary metabolomic fingerprint of T2D compared with non-T2D participants in the PREDIMED trial. The discriminant metabolite fingerprint was subjected to logistic regression analysis and ROC analyses to establish and to assess the multi-metabolite signature of T2D prevalence, respectively...
February 20, 2018: Diabetes & Metabolism
Jin Qu, Xin Zhao, Peter X Ma, Baolin Guo
Injectable hydrogels with multistimuli responsiveness to electrical field and pH as a drug delivery system have been rarely reported. Herein, we developed a series of injectable conductive hydrogels as "smart" drug carrier with the properties of electro-responsiveness, pH-sensitivity, and inherent antibacterial activity. The hydrogels were prepared by mixing chitosan-graft-polyaniline (CP) copolymer and oxidized dextran (OD) as a cross-linker. The chemical structures, morphologies, electrochemical property, swelling ratio, conductivity, rheological property, in vitro and in vivo biodegradation, and gelation time of hydrogels were characterized...
March 16, 2018: Acta Biomaterialia
Julie A Lynch, Brygida Berse, Merry Rabb, Paul Mosquin, Rob Chew, Suzanne L West, Nicole Coomer, Daniel Becker, John Kautter
BACKGROUND: Tumor testing for mutations in the epidermal growth factor receptor (EGFR) gene is indicated for all newly diagnosed, metastatic lung cancer patients, who may be candidates for first-line treatment with an EGFR tyrosine kinase inhibitor. Few studies have analyzed population-level testing. METHODS: We identified clinical, demographic, and regional predictors of EGFR & KRAS testing among Medicare beneficiaries with a new diagnosis of lung cancer in 2011-2013 claims...
March 20, 2018: BMC Cancer
Zirui Song, Amol S Navathe, Ezekiel J Emanuel, Kevin G Volpp
The United States is simultaneously moving toward value-based payments for populations and precision medicine for individuals. During this evolution, innovations in payment and delivery that enhance tailoring of treatments to individuals while improving the value of care are needed. We propose one such innovation that would allow physician payment and patient cost sharing to better reflect the value of care by allowing the appropriateness of a service for a given patient in a given clinical situation to play a more meaningful role in the design of such incentives...
March 2018: American Journal of Managed Care
Yan-Ru Liu, Zhi-Shu Tang, Jin-Ao Duan, Xiao-Chun Sun, Zhong-Xing Song, Xin-Bo Shi, Yang Lv, Zhao Zhang, Da-Wei Qian
To explore the flavor and meridian tropism classification of Callianthemum taipaicum by principal components analysis(PCA) and partial least square analysis(PLS). Meanwhile,to establish a high performance liquid chromatography-tandem mass spectrometry(HPLC-ESI-MS) method for the simultaneous determination of 55 active components from 13 kinds of Ranunculaceae of Chinese traditional herbs. Samples were separated on HPLC system by Agilent 5 TC-C₁₈(2)(4.6 mm×250 mm,5 μm)column and eluted with acetonitrile and 0...
January 2018: Zhongguo Zhong Yao za Zhi, Zhongguo Zhongyao Zazhi, China Journal of Chinese Materia Medica
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