The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Oct. 15, 2024

Filed:

Sep. 23, 2021
Applicant:

The Johns Hopkins University, Baltimore, MD (US);

Inventors:

Bert Vogelstein, Baltimore, MD (US);

Kenneth W. Kinzler, Baltimore, MD (US);

Nickolas Papadopoulos, Towson, MD (US);

Isaac A. Kinde, Beaumont, CA (US);

Assignee:

The Johns Hopkins University, Baltimore, MD (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C12Q 1/68 (2018.01); C12Q 1/6811 (2018.01); C12Q 1/6827 (2018.01); C12Q 1/6869 (2018.01); C12Q 1/6883 (2018.01);
U.S. Cl.
CPC ...
C12Q 1/6869 (2013.01); C12Q 1/6811 (2013.01); C12Q 1/6827 (2013.01); C12Q 1/6883 (2013.01); C12Q 2600/112 (2013.01); C12Q 2600/156 (2013.01); C12Q 2600/16 (2013.01);
Abstract

Massively parallel sequencing of cell-free, maternal plasma DNA was recently demonstrated to be a safe and effective screening method for fetal chromosomal aneuploidies. Here, we report an improved sequencing method achieving significantly increased throughput and decreased cost by replacing laborious sequencing library preparation steps with PCR employing a single primer pair. Using this approach, samples containing as little as 4% trisomy 21 DNA could be readily distinguished from euploid samples.


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