Search PubMed⌕ Search

SEARCH · Search PubMed

Results for “Data integration”

Search indexed PubMed citations on genomics, clinical trials, systematic reviews and public health. Explore titles, authors and supplied subject terms, then open the PubMed record.

Quote a phrase for an exact phrase match. Source license links do not imply unrestricted reuse.

At least 127 records · Page 7Linked to original sources
PubMed2005

Secure analysis of distributed chemical databases without data integration.

We present a method for performing statistically valid linear regressions on the union of distributed chemical databases that preserves confidentiality of those databases. The method employs secure multi-party computation to share local sufficient statistics necessary to compute least squares estimators of regression coefficients, error variances and other quantities of interest. We illustrate our method with an example containing four companies' rather different databases.

Algorithms↗
PubMed1975

An integrated data system for the retail pharmaceutical service.

A machine has been designed for use in a retail pharmacy which counts tablets and records the count beside a machine-read bar code indicating the identity of the drug. Such data could be used for retail stock control and passed on for use by wholesaler, manufacturer and prescription pricing bureau for their routine processes. Thus present processes would be greatly simplified and some other advantages gained.

Drug and Narcotic Control↗
PubMed1991

Data integrity.

Explore the source record for details and available documents.

Clinical Trials as Topic↗
PubMed2002

What data integration means to the practicing dentist.

Practitioners all have been confronted with unscheduled, emergency care patients. Their immediate concern is usually pain relief, and they may not always provide accurate or complete information about their health history. They may be distracted by pain, lack the understanding of their health to answer appropriately, or by intention or oversight omit or provide faulty information. Faced with omissions and inconsistencies, practitioners make an extra effort to explore their health history and, if indicated, consult their physician. Although the information that is developed creates a more complete and more accurate picture of a patient's health, there is always a small risk of omission or misrepresentation of a significant item. Although chances are that this misrepresentation will have little impact on how the practitioner handles the case, there is that one case in a thousand that can ruin one's day and possibly one's practice.

Consensus↗
PubMed2005

Ethical issues, safety, and data integrity in clinical trials.

Published in 1974, the Belmont Report established the ethical principles for conducting clinical research in the United States. The essential concepts are respect for the research participant, beneficence for society at large, and justice (equal access to participation and equal treatment) toward subjects in a research study. These principles are applied through the use of informed consent, risk/benefit assessment, and the impartial selection of study subjects. Strict adherence to these criteria often results in conflicts of interest, which the investigator must anticipate and manage. Investigators must also be thoroughly acquainted with the principles of Good Clinical Practice and regulatory requirements. Recent implementation of the Privacy Rule now requires the investigator to protect not only the safety but the privacy of the research subject. While the regulatory obligations can appear onerous, strict compliance results in clinical research that is safe, scientifically sound, and ethical.

Clinical Trials as Topic↗
PubMed2006

Integrating data on DNA copy number with gene expression levels and drug sensitivities in the NCI-60 cell line panel.

Chromosome rearrangement, a hallmark of cancer, has profound effects on carcinogenesis and tumor phenotype. We used a panel of 60 human cancer cell lines (the NCI-60) as a model system to identify relationships among DNA copy number, mRNA expression level, and drug sensitivity. For each of 64 cancer-relevant genes, we calculated all 4,096 possible Pearson's correlation coefficients relating DNA copy number (assessed by comparative genomic hybridization using bacterial artificial chromosome microarrays) and mRNA expression level (determined using both cDNA and Affymetrix oligonucleotide microarrays). The analysis identified an association of ERBB2 overexpression with 3p copy number, a finding supported by data from human tumors and a mouse model of ERBB2-induced carcinogenesis. When we examined the correlation between DNA copy number for all 353 unique loci on the bacterial artificial chromosome microarray and drug sensitivity for 118 drugs with putatively known mechanisms of action, we found a striking negative correlation (-0.983; 95% bootstrap confidence interval, -0.999 to -0.899) between activity of the enzyme drug L-asparaginase and DNA copy number of genes near asparagine synthetase in the ovarian cancer cells. Previous analysis of drug sensitivity and mRNA expression had suggested an inverse relationship between mRNA levels of asparagine synthetase and L-asparaginase sensitivity in the NCI-60. The concordance of pharmacogenomic findings at the DNA and mRNA levels strongly suggests further study of L-asparaginase for possible treatment of a low-synthetase subset of clinical ovarian cancers. The DNA copy number database presented here will enable other investigators to explore DNA transcript-drug relationships in their own domains of research focus.

Antineoplastic Agents↗
PubMed2003

A new approach to integrating data from multiple informants in psychiatric assessment and research: mixing and matching contexts and perspectives.

OBJECTIVE: When there exists no single source of information (informant) to validly measure a characteristic, it is typically recommended that data from multiple informants be used. In psychiatric assessment and research, however, multiple informants often provide discordant data, which further confuse the measurement. Strategies such as arbitrarily choosing one informant or using the data from all informants separately generate further problems. This report proposes a theory to explain observed patterns of interinformant discordance and suggests a new approach to using data from multiple informants to measure characteristics of interest. METHOD: Using the example of assessment of developmental psychopathology in children, the authors propose a model in which the choice of informants is based on conceptualizing the contexts and perspectives that influence expression of the characteristic of interest and then identifying informants who represent those contexts and perspectives in such a way as to have the weaknesses of one informant canceled by the strengths of another. RESULTS: Applications of this approach to several datasets indicate that when these principles are followed, a more reliable and valid consensus measure is obtained, and failure to obtain a reliable, valid measure is indicative of some deviation from the principles. CONCLUSIONS: In obtaining a consensus measure, the issue is not determining how many informants are needed but choosing the right set of informants.

Adult↗