Abstract: Provided are a composition, kit, and application for the detection of colorectal cancer. The provided composition contains reagents for detecting methylation status of ADHFE1 gene, PPP2R5C gene, and SDC2 gene. The composition can be used for detecting colorectal cancer with high sensitivity and specificity.

Abstract: Provided are an NLP-based method for constructing a variant literature interpretation knowledge base, an interpretation method, and an electronic device. The method for constructing the variant literature interpretation knowledge base includes: obtaining disease-related literature; constructing, based on the disease-related literature, a database of entities associated with genes and variants; constructing a literature evidence knowledge graph for interpretation of variant literature; and performing evidence extraction on the literature evidence knowledge graph to obtain evidence corresponding to an entity, and constructing, based on the evidence and the database, the variant literature interpretation knowledge base. In this way, the literature evidences can be more comprehensive and systematic.

Abstract: Provided is a method for determining a pregnancy status of a pregnant woman, including: (1) constructing a training set and a selective verification set, each of the training set and the selective verification set being composed of pregnant woman samples each having a known pregnancy status; (2) determining predetermined parameters of each pregnant woman sample in the training set, the predetermined parameters including a concentration of fetal cell-free nucleic acids in peripheral blood and a gestational age in week at which sampling for the peripheral blood is conducted; (3) constructing a prediction model based on the known pregnancy status and the predetermined parameters; (4) determining predetermined parameters of the pregnant woman; and (5) determining the pregnancy status of the pregnant woman based on the predetermined parameters and the constructed prediction model.

Abstract: Disclosed are a method and a system for determining genome copy number variation, which relates to the technical field of bioinformatics. The method and the system have clinical feasibility, and can precisely detect a micro-deletion/micro-duplication area of 0.5 M under the situation of using data of about 50 M.

Abstract: A method and a device for detecting chromosomal structural abnormalities are provided. The method includes acquiring a whole genome sequencing result of a target individual, that is, multiple pairs of Reads located at two ends of chromosome fragments are determined; aligning the sequencing result with a reference sequence to obtain an abnormal match set, which includes Read pairs that have two Read sequences matched respectively to different chromosomes of the reference sequence; clustering the Read sequences in the abnormal match set based on the positions matched thereto; and filtering the resultant clusters by using, for example, preset requirements associated with compactness and others, and obtaining the filtered result, clusters, for determining the occurrence of translocation-type chromosomal structural abnormity.

Abstract: The invention provides a PCR sequencing method, wherein the combination of primer indexes, DNA incomplete shearing strategy and the second generation sequencing technique (Paired-End sequencing technique) can make the length of PCR products that can be sequenced by a sequencer longer than the maximum sequencing length of the sequencer while making full use of the characteristics of the second generation sequencing technique such as high throughput and low cost, thereby greatly broadening its applicable scope. In addition, the present invention also provides primer indexes for the PCR sequencing method and the use of the method in genotyping, particularly in HLA analysis, and also provides the PCR primers used, particularly the PCR primers for HLA-A, B, HLA-C and HLA-DQB1 gene.

Abstract: The present invention relates to a method for detecting Human Papilloma Virus (HPV), in particular, to a method for detecting HPV based on Solexa sequencing method.