Low-volume on-chip single sperm cell analysis
Poster May 16, 2011
Pickrahn I. E. ,Schmidt-Gann G., Kroneis T.
We performed low-volume on-chip DNA typing of single sperm cells isolated by means of laser microdissection. 16plex PCR was successful in 39 of 40 single cell samples yielding a mean PCR efficiency of 62.8%. In addition, we were able to identify a single-cell sample containing more than one cell enabling us to monitor the quality of the whole procedure, and hence, exclude “contaminated” samples from further analysis.
Despite the developments in conventional PCR, the complexity of multiplex Real Time PCR is still limited due to the lack of sufficient detection channels. To achieve high-end multiplexing capacity on standard Real Time PCR machines, Anapa Biotech has developed the MeltPlex® technology (see box on right).READ MORE
Genome-wide association studies (GWAS) have identified more than 100 genetic loci associated with type 2 diabetes. The majority of these are located in the intergenic or intragenic regions suggesting that the implicated variants may alter chromatin conformation. This, in turn, is likely to influence the expression of nearby or more remotely located genes to alter beta cell function. At present, however, detailed molecular and functional analyses are still lacking for most of these variants. We recently analysed one of these loci and mapped five causal variants in an islet-specific enhancer cluster within the STARD10 gene locus. Here, we aimed to understand how these causal variants influence b-cell function by alteration of the chromatin structure of enhancer clusterREAD MORE
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