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Precision medicine population

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https://www.readbyqxmd.com/read/28917221/determining-the-predictive-equation-for-height-from-ulnar-length-in-the-vietnamese-population
#1
Ana Bonell, Nguyen Nguyen Huyen, Vu Dinh Phu, Heiman Wertheim, Behzad Nadjm
BACKGROUND AND OBJECTIVES: Height is an essential measurement in clinical medicine. It allows the calculation of body mass index, ideal body weight, basic energy requirements and tidal volumes. In many patient groups, such as the critically ill, height cannot be measured easily and surrogate anthropometric measures are used. Regression equations estimating height are specific to ethnicity. We aimed to develop the regression equation for Vietnamese men and women to predict height from ulna length and so improve prescription of life-saving treatment in the intensive care units...
2017: Asia Pacific Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/28915942/development-of-a-validated-lc-ms-ms-method-for-the-quantification-of-19-endogenous-asthma-copd-potential-urinary-biomarkers
#2
Mona M Khamis, Darryl J Adamko, Anas El-Aneed
Obstructive airways inflammatory diseases sometimes show overlapping symptoms that hinder their early and correct diagnosis. Current clinical tests are tedious and are of inadequate specificity in special population such as the elderly and children. Therefore, we are developing tandem mass spectrometric (MS/MS) methods for targeted analysis of urine biomarkers. Recently, proton-nuclear magnetic resonance ((1)H-NMR) analysis proposed 50 urinary metabolites as potential diagnostic biomarkers among asthma and chronic obstructive pulmonary disease (COPD) patients...
October 9, 2017: Analytica Chimica Acta
https://www.readbyqxmd.com/read/28913985/asthma-biomarkers-do-they-bring-precision-medicine-closer-to-the-clinic
#3
REVIEW
Ioana Agache, Liliana Rogozea
Measurement of biomarkers has been incorporated within clinical research of asthma to characterize the population and to associate the disease with environmental and therapeutic effects. Regrettably, at present, there are no specific biomarkers, none is validated or qualified, and endotype-driven choices overlap. Biomarkers have not yet reached clinical practice and are not included in current asthma guidelines. Last but not least, the choice of the outcome upholding the value of the biomarkers is extremely difficult, since it has to reflect the mechanistic intervention while being relevant to both the disease and the particular person...
November 2017: Allergy, Asthma & Immunology Research
https://www.readbyqxmd.com/read/28902409/binswanger-s-disease-biomarkers-in-the-inflammatory-form-of-vascular-cognitive-impairment-and-dementia
#4
REVIEW
Gary A Rosenberg
Vascular cognitive impairment and dementia (VCID) is a major public health concern because of the increased incidence of vascular disease in the aging population and the impact of vascular disease on Alzheimer's disease. VCID is a heterogeneous group of diseases for which there are no proven treatments. Biomarkers can be used to select more homogeneous populations. Small vessel disease is the most prevalent form of VCID and is the optimal form for treatment trials because there is a progressive course with characteristic pathological changes...
September 13, 2017: Journal of Neurochemistry
https://www.readbyqxmd.com/read/28874244/the-interplay-between-fasting-glucose-echocardiography-and-biomarkers-pathophysiological-considerations-and-prognostic-implications
#5
Manan Pareek
BACKGROUND: Traditional cardiovascular risk stratification tools that employ clinical risk factors are limited by their modest discriminative abilities. As such, robust cardiovascular risk assessment, including our understanding of the complex interplay between risk factors, in the primary preventive setting, remains incomplete. Phenotypical heterogeneity may be even greater among subjects with hyperglycemic conditions, i.e., prediabetes and diabetes, which is worrisome, given the dramatic global rise in mean fasting glucose levels, and the strong association with adverse cardiovascular outcomes...
September 2017: Danish Medical Journal
https://www.readbyqxmd.com/read/28873029/cyp450-genotype-phenotype-concordance-in-mexican-amerindian-indigenous-populations-where-to-from-here-for-global-precision-medicine
#6
Fernando de Andrés, Martha Sosa Macías, Blanca Patricia Lazalde Ramos, María-Eugenia G Naranjo, Adrián LLerena
Global precision medicine demands characterization of drug metabolism and phenotype variation in diverse populations, including the indigenous societies. A related question is the extent to which CYP450 drug metabolizing enzyme genotype and phenotype data are concordant and whether they can be used interchangeably. These issues are increasingly debated as precision medicine continues to expand as a popular research topic worldwide. We report here the first study in clinically relevant CYP450 drug metabolism phenotypes and genotypes in Mexican Amerindian indigenous subjects...
September 5, 2017: Omics: a Journal of Integrative Biology
https://www.readbyqxmd.com/read/28873014/impact-of-preanalytical-variations-in-blood-derived-biospecimens-on-omics-studies-toward-precision-biobanking
#7
Jae-Eun Lee, Young-Youl Kim
Research data and outcomes do vary across populations and persons, but this is not always due to experimental or true biological variation. Preanalytical components of experiments, be they biospecimen acquisition, preparation, storage, or transportation to the laboratory, may all contribute to apparent variability in research data, outcomes, and interpretation. The present review article and biobanking innovation analysis offer new insights with a summary of such preanalytical variables, for example, the type of blood collection tube, centrifugation conditions, long-term sample storage temperature, and duration, on output of omics analyses of blood-derived biospecimens: whole blood, serum, plasma, buffy coat, and peripheral blood mononuclear cells...
September 5, 2017: Omics: a Journal of Integrative Biology
https://www.readbyqxmd.com/read/28870871/clinical-genomic-sequencing-as-a-routine-technology-for-case-finding-and-diagnosis-in-unselected-patient-populations-should-not-proceed-without-formal-comparative-evaluation-of-health-outcomes-and-system-impacts
#8
Brenda J Wilson, Fiona Alice Miller, François Rousseau
Next generation genomic sequencing (NGS) technologies - whole genome and whole exome sequencing - are now cheap enough to be within the grasp of many healthcare organizations. To many, NGS is symbolic of cutting edge healthcare, offering the promise of 'precision' and 'personalized' medicine. Historically, research and clinical application has been a two way street in clinical genetics: research often driven directly by the desire to understand and try to solve immediate clinical problems affecting real, identifiable patients and families, accompanied by a low threshold of willingness to apply research-driven interventions without resort to formal empirical evaluations...
September 1, 2017: Journal of Clinical Epidemiology
https://www.readbyqxmd.com/read/28863391/a-precision-medicine-approach-for-psychiatric-disease-based-on-repeated-symptom-scores
#9
Anthony T Fojo, Katherine L Musliner, Peter P Zandi, Scott L Zeger
For psychiatric diseases, rich information exists in the serial measurement of mental health symptom scores. We present a precision medicine framework for using the trajectories of multiple symptoms to make personalized predictions about future symptoms and related psychiatric events. Our approach fits a Bayesian hierarchical model that estimates a population-average trajectory for all symptoms and individual deviations from the average trajectory, then fits a second model that uses individual symptom trajectories to estimate the risk of experiencing an event...
August 11, 2017: Journal of Psychiatric Research
https://www.readbyqxmd.com/read/28862991/confidence-intervals-for-heritability-via-haseman-elston-regression
#10
Tamar Sofer
Heritability is the proportion of phenotypic variance in a population that is attributable to individual genotypes. Heritability is considered an important measure in both evolutionary biology and in medicine, and is routinely estimated and reported in genetic epidemiology studies. In population-based genome-wide association studies (GWAS), mixed models are used to estimate variance components, from which a heritability estimate is obtained. The estimated heritability is the proportion of the model's total variance that is due to the genetic relatedness matrix (kinship measured from genotypes)...
September 26, 2017: Statistical Applications in Genetics and Molecular Biology
https://www.readbyqxmd.com/read/28861770/economic-considerations-in-the-use-of-novel-targeted-therapies-for-lung-cancer-review-of-current-literature
#11
Hamzeh Albaba, Charles Lim, Natasha B Leighl
Lung cancer remains the leading cause of cancer-related death and economic burden worldwide. Despite the heavy toll of lung cancer, multiple new advances have improved patient outcomes, largely through precision medicine and targeted therapy. The associated rising economic burden however may impact the uptake of novel therapeutic agents in lung cancer, thereby limiting patient access. This article identifies and reviews economic evaluations of targeted agents in lung cancer in the era of precision medicine...
August 31, 2017: PharmacoEconomics
https://www.readbyqxmd.com/read/28861119/evaluation-of-a-multimodal-pain-therapy-concept-for-chronic-pain-after-total-knee-arthroplasty-a-pilot-study-in-21-patients
#12
Dirk Zajonz, Johannes K M Fakler, Anna-Judith Dahse, Fujiaoshou Junping Zhao, Melanie Edel, Christoph Josten, Andreas Roth
BACKGROUND: In spite of the improvement of many aspects around Total knee arthroplasty (TKA), there is still a group of 10% to 34% of patients who is not satisfied with the outcome. The therapy of chronic pain after TKA remains a medical challenge that requires an interdisciplinary therapy concept. The aim of this prospective pilot study was to evaluate the efficacy of a multimodal pain therapy in chronic complaints after TKA. METHODS: In a prospective cohort pilot study, we included patients with chronic pain after TKA who obtained in-patient care, especially multimodal pain therapy (MMPT), for at least 10 days...
2017: Patient Safety in Surgery
https://www.readbyqxmd.com/read/28852561/barred-from-better-medicine-reexamining-regulatory-barriers-to-the-inclusion-of-prisoners-in-research
#13
Elaine Huang, Jacqueline Cauley, Jennifer K Wagner
In 2015, President Obama announced plans for the Precision Medicine Initiative(®) (PMI), an ambitious longitudinal project aimed at revolutionizing medicine. Integral to this Initiative is the recruitment of over one million Americans into a volunteer research cohort, the All of Us(SM) Research Program. The announcement has generated much excitement but absent is a discussion of how the All of Us Research Program-to be implemented within the context of social realities of mass incarcerations and racial disparities in criminal justice and healthcare-might excaberate health disparities...
April 2017: Journal of Law and the Biosciences
https://www.readbyqxmd.com/read/28851658/benzodiazepines-use-and-breast-cancer-risk-a-population-based-study-and-gene-expression-profiling-evidence
#14
Usman Iqbal, Tzu-Hao Chang, Phung-Anh Nguyen, Shabbir Syed-Abdul, Hsuan-Chia Yang, Chih-Wei Huang, Suleman Atique, Wei-Chung Yang, Max Moldovan, Wen-Shan Jian, Min-Huei Hsu, Yun Yen, Yu-Chuan Jack Li
The aim of this study was to investigate whether long-term use of Benzodiazepines (BZDs) is associated with breast cancer risk through the combination of population-based observational and gene expression profiling evidence. We conducted a population-based case-control study by using 1998 to 2009 year Taiwan National Health Insurance Research Database and investigated the association between BZDs use and breast cancer risk. We selected subjects age of > 20 years old and six eligible controls matched for age, sex and the index date (i...
August 26, 2017: Journal of Biomedical Informatics
https://www.readbyqxmd.com/read/28834395/charting-the-genotype-phenotype-map-lessons-from-the-drosophila-melanogaster-genetic-reference-panel
#15
REVIEW
Trudy F C Mackay, Wen Huang
Understanding the genetic architecture (causal molecular variants, their effects, and frequencies) of quantitative traits is important for precision agriculture and medicine and predicting adaptive evolution, but is challenging in most species. The Drosophila melanogaster Genetic Reference Panel (DGRP) is a collection of 205 inbred strains with whole genome sequences derived from a single wild population in Raleigh, NC, USA. The large amount of quantitative genetic variation, lack of population structure, and rapid local decay of linkage disequilibrium in the DGRP and outbred populations derived from DGRP lines present a favorable scenario for performing genome-wide association (GWA) mapping analyses to identify candidate causal genes, polymorphisms, and pathways affecting quantitative traits...
August 22, 2017: Wiley Interdisciplinary Reviews. Developmental Biology
https://www.readbyqxmd.com/read/28818298/enhancing-the-pediatric-drug-development-framework-to-deliver-better-pediatric-therapies-tomorrow
#16
Christina Bucci-Rechtweg
Health care professionals involved in the clinical management of children have long appreciated the limited number of therapies suitably evaluated for their optimal use in the pediatric population. In the past century, advances in regulatory policy significantly evolved adult drug evaluation. The scarcity of available patient populations, practical complexities of drug development research, and minimal financial returns have hampered pharmaceutical investment in the study of therapies for children. More recently, pediatric policy and legislation in the United States and Europe have instituted a system of obligations and incentives to stimulate investment in pediatric drug development...
August 14, 2017: Clinical Therapeutics
https://www.readbyqxmd.com/read/28818163/evaluation-of-ckd-epi-pakistan-equation-for-estimated-glomerular-filtration-rate-egfr-acomparison-of-egfr-prediction-equations-in-pakistani-population
#17
Sibtain Ahmed, Lena Jafri, Aysha Habib Khan
OBJECTIVE: To evaluate the results of 24-hour urinary creatinine clearance (CrCl) with estimated glomerular filtration rate (eGFR) using the Chronic Kidney Disease Epidemiology Collaboration (CKD-EPI), CKD-EPI Pakistan (CKD-EPI Pak), Cockcroft Gault (CG) and 4-variable Modification of Diet in Renal Disease (MDRD) equations. STUDY DESIGN: Descriptive, cross-sectional study. PLACE AND DURATION OF STUDY: Section of Clinical Chemistry, Department of Pathology and Laboratory Medicine, The Aga Khan University, Karachi, from June to October 2013...
July 2017: Journal of the College of Physicians and Surgeons—Pakistan: JCPSP
https://www.readbyqxmd.com/read/28817531/bias-confounding-and-interaction-lions-and-tigers-and-bears-oh-my
#18
REVIEW
Thomas R Vetter, Edward J Mascha
Epidemiologists seek to make a valid inference about the causal effect between an exposure and a disease in a specific population, using representative sample data from a specific population. Clinical researchers likewise seek to make a valid inference about the association between an intervention and outcome(s) in a specific population, based upon their randomly collected, representative sample data. Both do so by using the available data about the sample variable to make a valid estimate about its corresponding or underlying, but unknown population parameter...
September 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/28815129/sdt-a-tree-method-for-detecting-patient-subgroups-with-personalized-risk-factors
#19
Xiangrui Li, Dongxiao Zhu, Ming Dong, Milad Zafar Nezhad, Alexander Janke, Phillip D Levy
Eradicating health disparity is a new focus for precision medicine research. Identifying patient subgroups is an effective approach to customized treatments for maximizing efficiency in precision medicine. Some features may be important risk factors for specific patient subgroups but not necessarily for others, resulting in a potential divergence in treatments designed for a given population. In this paper, we propose a tree-based method, called Subgroup Detection Tree (SDT), to detect patient subgroups with personalized risk factors...
2017: AMIA Summits on Translational Science Proceedings
https://www.readbyqxmd.com/read/28812535/associating-mutations-causing-cystinuria-with-disease-severity-with-the-aim-of-providing-precision-medicine
#20
Henry J Martell, Kathie A Wong, Juan F Martin, Ziyan Kassam, Kay Thomas, Mark N Wass
BACKGROUND: Cystinuria is an inherited disease that results in the formation of cystine stones in the kidney, which can have serious health complications. Two genes (SLC7A9 and SLC3A1) that form an amino acid transporter are known to be responsible for the disease. Variants that cause the disease disrupt amino acid transport across the cell membrane, leading to the build-up of relatively insoluble cystine, resulting in formation of stones. Assessing the effects of each mutation is critical in order to provide tailored treatment options for patients...
August 11, 2017: BMC Genomics
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