cell-free


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cell-free

Pertaining to fluids or tissues that contain no cells or in which all the cells have been disintegrated by laboratory treatment.
References in periodicals archive ?
Consequently, the American College of Obstetricians and Gynecologists and the Society for Maternal-Fetal Medicine updated that earlier committee opinion, stressing the limits of cell-free DNA testing for aneuploidy and the importance of conventional prenatal screening methods for most pregnant women.
Accessing longitudinal information about driver mutations in cell-free DNA has become a reality, and Trovagene's platform combines convenience and ease of use with potential best-in-class molecular monitoring performance.
The results of measurements in the baseline aliquots and in those containing increasing levels of cell-free hemoglobin were evaluated by Student's paired T test and direct comparison with the desirable specifications for total error, as recommended by Ricos et al (11).
All approaches sequence the total (maternal and fetal) cell-free DNA that is isolated from maternal plasma, which is fragmented.
With the use of either the targeted or whole-genome approach across the 141 serial samples in these 30 patients with mutations, cell-free DNA was detected in 29 (97%) of the women and 115 (82%) of the samples.
The D-Pop kit allows scientists to fractionate apoptotic bodies from cell-free fluids in minutes, and can be used to process high volumes of cell-free fluids.
and colleagues performed a systematic review and meta-analysis of previous research to examine the analytic validity of cell-free fetal DNA testing, which describes the test's ability to detect Y chromosome sequences within maternal samples, as well as the clinical validity of the test, as indicated by its ability to correctly identify fetal sex.
It seems that screening has to become more sophisticated, by additional biochemistry, adding ultrasound or developing cell-free DNA testing.
The scientists used ultrafiltration as an energy-efficient method to concentrate the cell-free xanthan broth to about 150 g per L before further purification occurred with alcohol precipitation.
In addition, cell-free hemolymph of certain bivalves has been shown to contain various biologically active substances involved in innate defense, including agglutinins (e.
Chapter 2 describes a cell-free conversion reaction system to study how pathogenic prions associated with different species interact with host cellular prion protein.
The successful transfusion of a cell-free blood product on a 14-year-old Jehovah's Witness may offer a solution for patients opposed to blood transfusions due to religious or personal beliefs.