Methods are provided for the epigenetic analysis of cell-free DNA using organic boranes to convert oxidized 5-methylcytosine residues in the cell-free DNA to dihydrouracil (DHU) residues. Cell-free DNA is contacted with an organic borane selected to successively bring about reduction, deamination, and decarboxylation of oxidized 5-methylcytosine residues such as 5-carboxylcytosine and 5-formylcytosine, resulting in DHU residues in place thereof. Following amplification, the treated cell-free DNA is sequenced, with the DHU residues read as thymine residues. Reaction mixtures, kits and additional methods are also provided, as are related methods for the epigenetic analysis of DNA, including cell-free DNA.

Methods are provided for the epigenetic analysis of cell-free DNA using organic boranes to convert oxidized 5-methylcytosine residues in the cell-free DNA to dihydrouracil (DHU) residues. Cell-free DNA is contacted with an organic borane selected to successively bring about reduction, deamination, and decarboxylation of oxidized 5-methylcytosine residues such as 5-carboxymethylcytosine and 5-formylcytosine, resulting in DHU residues in place thereof. Following amplification, the treated cell-free DNA is sequenced, with the DHU residues read as thymine residues. Reaction mixtures, kits and additional methods are also provided, as are related methods for the epigenetic analysis of DNA, including cell-free DNA.

A method of detecting target nucleic acids, including small non-coding RNAs (sncRNAs), microRNAs (miRNAs), small interfering RNAs (siRNAs), PIWI-interacting RNA (piRNA), or antisense oligonucleotides (ASO) molecules, in a cell, comprising a post-fixation step using an aldehyde-containing fixative after the initial fixation step prior to in situ hybridization.

A method of detecting target nucleic acids, including small non-coding RNAs (sncRNAs), microRNAs (miRNAs), small interfering RNAs (siRNAs), PIWI-interacting RNA (piRNA), or antisense oligonucleotides (ASO) molecules, in a cell, comprising a post-fixation step using an aldehyde-containing fixative after the initial fixation step prior to in situ hybridization.

Provided are compositions and methods for the conversion of thiolated nucleotides, and subsequent detection of the converted nucleotides in RNA or DNA. Also provided herein are compositions and methods for the metabolic labeling of RNA and DNA by incorporation of thiolated nucleotides, and their subsequent conversion and detection.

Provided are compositions and methods for the conversion of thiolated nucleotides, and subsequent detection of the converted nucleotides in RNA or DNA. Also provided herein are compositions and methods for the metabolic labeling of RNA and DNA by incorporation of thiolated nucleotides, and their subsequent conversion and detection.

This invention features systems and methods for the detection of analytes, and their use in the treatment and diagnosis of disease.

The present disclosure provides methods and systems for detecting nucleic acid sequences in a biological sample having a three-dimensional matrix. The present disclosure also provides methods and systems for processing a biological sample for use in nucleic acid sequence detection.

The present disclosure provides methods and systems for detecting nucleic acid sequences in a biological sample having a three-dimensional matrix. The present disclosure also provides methods and systems for processing a biological sample for use in nucleic acid sequence detection.

Provided herein is technology relating to amplification of nucleic acids and particularly, but not exclusively, to compositions and methods for doing improving the polymerase chain reaction and providing reagents for polymerase chain reaction with improved stability.