摘要:
Systems, methods, and apparatus for determining at least a portion of fetal genome are provided. DNA fragments from a maternal sample (maternal and fetal DNA) can be analyzed to identify alleles at certain loci. The amounts of DNA fragments of the respective alleles at these loci can be analyzed together to determine relative amounts of the haplotypes for these loci and determine which haplotypes have been inherited from the parental genomes. Loci where the parents are a specific combination of homozygous and heterozygous can be analyzed to determine regions of the fetal genome. Reference haplotypes common in the population can be used along with the analysis of the DNA fragments of the maternal sample to determine the maternal and paternal genomes. Determination of mutations, a fractional fetal DNA concentration in a maternal sample, and a proportion of coverage of a sequencing of the maternal sample can also be provided.
摘要:
Blood plasma of pregnant women contains fetal and (generally >90%) maternal circulatory extracellular DNA. Most of said fetal DNA contains ≦500 base pairs, said maternal DNA having a greater size. Separation of circulatory extracellular DNA of
摘要:
Provided in part herein are genetic variations (e.g., single nucleotide polymorphisms) associated with a vascular endothelial growth factor (VEGF) suppression response to an anti-VEGF agent for treatment of a macular degeneration disorder (e.g., age-related macular degeneration (AMD)). Also provided herein are methods for determining a genotype that includes such genetic variations, methods for predicting a VEGF suppression response for a subject according to a genotype, and methods for selecting a treatment suitable for treating a macular degeneration disorder (e.g., wet AMD) for a subject in need thereof according to a genotype.
摘要:
Provided herein are compositions, processes and kits for noninvasive, early determination of fetal sex from, and/or amount of fetal nucleic acid in, an extracellular nucleic acid sample from a pregnant female. Such compositions, processes and kits are useful for detection of low genomic copy numbers of male fetal nucleic acid in a high copy number background of female nucleic acid, thereby determining the sex of a fetus and/or amount of fetal nucleic acid in a sample.
摘要:
Provided herein are methods, compositions and kits to extract and relatively enrich by physical separation or amplification short base pair nucleic acid in the presence of a high background of genomic material (e.g., host or maternal nucleic acids).
摘要:
The technology relates in part to selection, quantification and use of particular nucleic acid markers. In some embodiments, such markers are particular epigenetic markers, and sometimes each marker is a particular methylation state of a nucleic acid locus.
摘要:
The technology relates in part to quantification of a minority nucleic acid species from a nucleic acid sample. In some embodiments, methods for determining the amount of fetal nucleic acid (e.g. absolute amount, relative amount) in a maternal sample are provided.
摘要:
The technology relates in part to quantification of a minority nucleic acid species from a nucleic acid sample. In some embodiments, methods for determining the amount of fetal nucleic acid (e.g. absolute amount, relative amount) in a maternal sample are provided.