Scientists participating in the modENCORE study have the goal of understanding the causes of hereditary genetic diseases in humans
New discoveries about the interaction of genes and transcription factors in creating different types of RNA will be of interest to pathologists and clinical chemists performing genetic tests and molecular diagnostic assays in their medical laboratories.
The goal of this research is to better understand hereditary genetic disease in humans. The new knowledge is based on studies of the common fruit fly, or Drosophila melanogaster (D. Melanogaster), and to a lesser extent a tiny worm Caenorhabditis elegans (C. elegans). Both have been used as research models to study the human condition.
Research Could Give Pathologists New Diagnostic Tools (more…)
Prenatal genome sequencing raises ethical issues for gene sequencing labs and clinical labs, since a baby’s genetic information may present lifelong consequences for that individual
Pathologists and clinical laboratory managers will be interested to learn that another milestone in genetic testing was reached earlier this year. A geneticist at the University of California at Davis, has sequenced the whole human genome of his unborn baby, the first time this feat has been accomplished.
Notably, it was geneticist and graduate student Razib Khan of the UC Davis School of Veterinary Medicine who sequenced his unborn son’s genome during the third trimester of pregnancy using a sample of the fetus’ placenta. This is the first healthy person born in the United States with his entire genetic makeup deciphered prior to birth, noted a recent story published by the MIT Technology Review. (more…)
The four exome test kits examined as part of this study failed to deliver quality results, particularly because they often missed some disease-causing mutations altogether
Human exome sequencing is gaining favor among medical laboratories wanting to use this information for clinical purposes. However, the accuracy of some exome-capture test kits available on the market today has come under question.
A team from the Thomas Jefferson University in Philadelphia surveyed the potential false-negative rate of mutations in 56 disease-causing genes produced by four different commercially available human exome-capture test kits. The researchers found that these test kits failed to deliver quality results, sometimes missing mutations altogether, noted a report published by Medical Daily. (more…)
More precise diagnoses will encourage pathologists and clinical laboratory professionals to consider using exome sequencing for clinical diagnostic purposes
Having sequenced the exomes of 150 patients to diagnose unknown disorders over the past year, physicians at Columbia University (CU) used that information to make decisive diagnoses in one-third of the cases. It is evidence from one of the nation’s pioneering gene-sequencing programs that such data can improve how physicians identify disease.
Findings from Exome Sequencing Program Noteworthy for Pathologists
Pathologists will find it noteworthy that some of the patients in the exome-sequencing program had been tracked for years at CU without a definitive diagnosis. This is why clinicians at the academic center in New York City see value in exome sequencing for selected patients.
For more than a year, doctors at Columbia University have tested the exome’s capability to provide a correct diagnosis for patients with suspected genetic disorders of unknown origins. The primary goal of the program is to prove that sequencing the exomes of these patients is both clinically useful and cost effective in guiding physicians to a correct diagnosis. (more…)
A new approach to genetic testing of critically ill children, developed by researchers at Children’s Mercy Hospital, can be a road map other medical laboratories can follow
In Kansas City, a medical team at Children’s Mercy Hospital has demonstrated that rapid whole human genome sequencing, when combined with interpretative software, can return clinically actionable answers quickly enough to be of value to physicians who are diagnosing patients showing symptoms of genetic conditions.
As many pathologists and clinical laboratory managers know, childrens’ hospitals across the nation are often at the vanguard of using molecular diagnostics and genetic tests to guide diagnosis and treatment of pediatric patients. Having the capability to make fast and accurate diagnoses of genetic conditions gives physicians at these institutions the ability to significantly improve the outcomes of their patients.
A report published by Medpagetoday.com reported the findings of researchers at Children’s Mercy Hospital. (more…)