摘要:
The invention relates to a method for detecting the degree of methylation of a defined cytosine in the sequence context 5′-CpG-3′ of a genomic DNA sample. The first stage involves chemically treating the genomic DNA in such a way that the cytosine bases, but not the 5-methylcytosine bases, are converted into uracil. Parts of the genomic DNA containing the defined cytosine are then amplified. The amplified parts are given a detectable mark and the extent of the hybridisation of the amplified parts on the two classes of oligonucleotides is then determined by detecting the mark of the amplified parts. The degree of methylation of the defined cytosine in the genomic DNA sample can be deduced on the basis of the relationship between the marks detected on the two classes of oligonucleotides following the hybridisation.
摘要:
The invention relates to a method for determining the age of individuals using sperm samples. The inventive method is characterized in that age information is determined by analyzing DNA methylation patterns of the DNA contained in the sperm samples.
摘要:
The invention relates to a method for detecting the degree of methylation of a defined cytosine in the sequence context 5′-CpG-3′ of a genomic DNA sample. The first stage involves chemically treating the genomic DNA in such a way that the cytosine bases, but not the 5-methylcytosine bases, are converted into uracil. Parts of the genomic DNA containing the defined cytosine are then amplified. The amplified parts are given a detectable mark and the extent of the hybridisation of the amplified parts on the two classes of oligonucleotides is then determined by detecting the mark of the amplified parts. The degree of methylation of the defined cytosine in the genomic DNA sample can be deduced on the basis of the relationship between the marks detected on the two classes of oligonucleotides following the hybridisation.
摘要:
The present invention relates to chemically modified genomic sequences, to oligonucleotides and/or PNA-oligomers for detecting the cytosine methylation state of genomic DNA, as well as to a method for ascertaining genetic and/or epigenetic parameters of genes for use in the characterisation, classification, differentiation, grading, staging, treatment and/or diagnosis of astrocytomas, or the predisposition to astrocytomas.
摘要:
The invention relates to a method of identifying cytosine methylation patterns in genomic DNA samples. The inventive method comprises the following steps: a) chemically treating a genomic DNA sample in such a manner that the cytosine and the 5-methyl cytosine react differently and that the two products have a different base-pairing behavior in the duplex; b) enzymatically amplifying parts of the DNA sample treated in this manner; c) binding the amplified parts of the DNA sample treated in this manner to a surface; d) hybridizing a set of probes of different nucleic base sequences to the immobilized DNA samples, said respective base sequences containing at least once the dinucleotide sequence 5'-CpG-3'; e) removing the non-hybridized probes; f) analyzing the hybridized probes in a mass spectrometer, the position of the probes on the sample carrier allowing an allocation of the DNA sample to be hybridized; g) converting the peak-patterns obtained from the mass-specters to methylation patterns and matching the new data with a data library.
摘要:
The invention relates to the chemically modified genomic sequence of the CD24 gene, to oligonucleotides oriented against the sequence and/or PNA oligomers for detecting the cytosine methylation status of the CD24 gene and to a method for determining genetic and/or epigenetic parameters of the CD24 gene.
摘要:
The invention relates to chemically modified genomic sequences of genes associated with the immune system, an oligonucleotide directed against said sequence and/or PNA oligomers for the detection of the methylation state of cytosine of genes associated with the immune system. The invention also relates to a method for determining genetic and/or epigenetic parameters of genes associated with the immune system.
摘要:
The present invention relates to the chemically modified genomic sequences of genes associated with diseases associated with development, to oligonucleotides and/or PNA/oligomers for detecting the cytosine methylation state of genes associated with diseases associated with development which are directed against the sequence, as well as to a method for ascertaining genetic and/or epigenetic parameters of genes associated with diseases associated with development.
摘要:
The present invention relates to the chemically modified genomic sequences of genes associated with pharmacogenomics, to oligonucleotides and/or PNA-oligomers for detecting the cytosine methylation state of genes associated with pharmacogenomics which are directed against the sequence, as well as to a method for ascertaining genetic and/or epigenetic parameters of genes associated with pharmacogenomics.
摘要:
The present invention relates to the chemically modified genomic sequences of genes associated with DNA replication, to oligonucleotides and/or PNA-oligomers for detecting the cytosine methylation state of genes associated with DNA replication which are directed against the sequence, as well as to a method for ascertaining genetic and/or epigenetic parameters of genes associated with DNA replication.