70 results about "Clinical phenotype" patented technology

A method of identifying by spectrometry of unknown microorganisms from among a set of reference species, including a first step of supervised learning of a classification model of the reference species, a second step of predicting an unknown microorganism to be identified, including acquiring a spectrum of the unknown microorganism; and applying a prediction model according to said spectrum and to the classification model to infer at least one type of microorganism to which the unknown microorganism belong. The classification model is calculated by a structured multi-class SVM algorithm applied to the nodes of a tree-like hierarchical representation of the reference species in terms of evolution and/or of clinical phenotype and having margin constraints including so-called “loss” functions quantifying a proximity between the tree nodes.

Methods to determine the susceptibility of a subject to erythrocyte diseases are provided. The methods comprise determining the miRNA compositions of erythrocytes from the subject. The present invention has discovered that erythrocytes comprise microRNA (miRNA) populations and the populations can be profiled or analyzed and used to determine the susceptibility for disease. The miRNA compositions can also be used to determine the severity of erythrocyte disease, and the features and clinical phenotypes of the erythrocyte disorders. Also provided are pharmaceutical compositions comprising erythrocyte miRNAs and methods for the treatment of a subject with an erythrocyte disease. In other embodiments of the invention, the miRNAs can be used to increase the life-span of erythrocytes through the introduction of an erythrocyte miRNA.

The invention discloses a duplex-seq-based ultralow-frequency mutation site detection analysis method. The method comprises the following steps of 1) assessing original sequencing data quality, reducing data noises, and providing effective data for subsequent analysis; 2) extracting a random barcode to a title line of each sequence of a sequence file, thereby facilitating subsequent quick retrieval of the barcode and creation of a consistency sequence; 3) creating the consistency sequence according to a family barcode and a duplex barcode, and excluding mutations introduced in a library creation process or a PCR process; 4) constructing a double-strand consistency sequence according to duplex-tag, and further excluding non-symmetric mutation sites in the sequence; 5) performing local quality correction on compared data, and performing low-frequency mutation site detection; performing annotation of three levels including a gene structure, a function and a clinical phenotype on the mutation sites; and 6) performing statistics on SSCS and DCS sequence number, comparison result and mutation site information, and outputting a visual chart.

The invention discloses a data analysis method for genetic disease gene testing, a system thereof and a storage medium. The method comprises the steps of inputting sample information and sequencing information of a testee; performing bioinformatics analysis on the sequencing data and obtaining an annotation result and a statistics result; performing quality control auditing on a quality index in astatistics result; performing interpretation personnel and flow distribution on a result which passes quality control auditing; determining a variation condition factor pool and performing variationevidence scoring, wherein the variation evidence scoring is used for assisted analysis for a genetic disease variation factor of the testee. The method and the system thereof perform bioinformatics analysis and quality control auditing based on the sequencing data, and performs interpretation personnel and flow distribution based on clinical phenotype information. Furthermore through variation evidence scoring, semi-automatic interpolation is realized and working efficiency is improved. Furthermore, a one-generation verifying primer database can be introduced, thereby greatly saving a primer designing process and reducing resource consumption. The data analysis method, the system thereof and the storage medium can be widely used for genetic disease gene sequencing data analysis and interpretation.

The present invention relates to a method for detecting antibodies against a target antigen in a sample which comprises contacting the sample with labelled target antigen, subjecting the sample to immunoprecipitation to precipitate antibodies in the sample and detecting the presence of antibodies against the target antigen in the sample by means of the presence of labelled target antigen in the immunoprecipitate, wherein the labelled target antigen is a fusion protein comprising the target antigen and a fluorescent protein label and the presence of labelled target antigen in the immunoprecipitate is detected by means of the fluorescence of the fluorescent label. The method is particularly suitable for use where the target antigen is an autoantigen and can also be used to identify autoantigens implicated in a particular autoimmune disorder by screening serum samples from patients with a clinical phenotype indicative or suggestive of an autoimmune disorder and suitable controls. The target protein may be from the cys-loop acetyl choline receptor ion channel gene superfamily, the voltage-gated calcium, sodium or potassium ion channel gene superfamily, the glutamate receptor gene family, a receptor tyrosine kinase, or other membrane associated channels such as aquaporin gene family.

The invention is applicable to the technical field of disease diagnosis, and provides a disease diagnosis method and device and terminal equipment. The method comprises the steps of obtaining the clinical phenotype of a patient, and matching a disease list with the phenotype similar to the clinical phenotype in a database; analyzing and sifting disease-causing genes corresponding to all diseases in the disease list, and determining the disease-causing gene and the disease corresponding to the clinical phenotype. According to the method and device, the disease list with the phenotype similar tothe clinical phenotype is quickly obtained for analysis with the clinical phenotype as the core, the efficiency of making a definite diagnosis on the disease of the patient is improved, and the timeof a doctor and the patient is saved.

In one or more embodiments, the present invention provides a novel biomarker which provides a link between a distinct clinical phenotype and a biochemical effect of an autoantibody on an enzyme implicated in disease pathogenesis. In particular, the present invention provides an isolated or purified human autoantibody to PAD3 protein. Methods of diagnosis of subjects for rheumatoid arthritis (RA) using these antibodies as well as diagnosis of the severity of RA in the subject, and methods for monitoring treatment of a subject with RA are also provided. The biomarkers provided herein are also useful in the diagnosis of connective tissue-interstitial lung disease (CT-ILD) in patients having or suspected of having RA.

The expression map and the chromosome distribution characteristic of a DS (down syndrome) fetal genome-wide miRNAs are studied by an Illumina deep sequencing technology so as to obtain a down syndrome 21 chromosome-related miRNA differential expression map model, which consists of an up-regulated miRNA, four down-regulated miRNAs and 9 zero-expression miRNAs. miRNA molecules with significant difference and specific expression help to understand a molecular regulation mechanism for occurrence and development of a clinical phenotype of a DS disease and lay the foundation for further studying gene expression disorder of a DS patient genome-wide and a relationship between the gene expression disorder and relevant clinical symptoms.

High throughput sequencing has facilitated a precipitous drop in the cost of whole genome human DNA sequencing, prompting predictions of a revolution in medicine via personalization of diagnostic and therapeutic strategies to individual genetics. Disclosed is a comprehensive series of methods for identification of genetic variants and medical genotypes, phasing genetic data and using Mendelian inheritance for quality control, and providing predictive genetic information about risk for rare disease phenotypes and response to pharmacological therapy in single individuals and father-mother-child trios.

The invention relates to the field of gene detection and bioinformatics. The invention discloses an application of a complex disease state evaluation method constructed based on high-throughput sequencing data and clinical phenotypes in a colorectal tumor state evaluation model. The invention discloses a method for mining colorectal cancer markers based on transcriptome data, exon group/genome data and clinical phenotypes. The invention designs a set of calculation method for constructing a colorectal cancer state evaluation model by integrating high-throughput sequencing data and clinical phenotypes, biomarkers related to colorectal cancer are screened out, and a corresponding disease state evaluation model is formed. The markers considering both accuracy and mechanism interpretability are constructed through the method and can be used for colorectal cancer prognosis evaluation, treatment effect prediction, treatment scheme assistant decision making and the like.

The invention provides an esophageal squamous cell carcinoma risk prediction method based on clinical phenotype and logistic regression analysis. The method is used for realizing prognosis survival risk assessment of esophageal squamous cell carcinoma patients. The method comprises the following steps: firstly, screening out characteristic indexes according to clinical detection data of the esophageal squamous cell carcinoma patients, and constructing a decision tree classifier according to the characteristic indexes; secondly, dividing the esophageal squamous cell carcinoma patients into early-stage esophageal squamous cell carcinoma patients and middle-late-stage esophageal squamous cell carcinoma patients by utilizing the decision tree classifier; then, obtaining blood index informationof the esophageal squamous cell carcinoma patient one week before the operation, and screening out blood indexes with high correlation with the survival risk of the esophageal squamous cell carcinomapatient, and constructiung a logistic regression model; inputting the classified blood indexes of the esophageal squamous cell carcinoma patient into the logistic regression model to obtain a prognosis survival risk probability value of the esophageal squamous cell carcinoma patient; and judging the prognosis survival risk. According to the method, the postoperative survival state of the esophageal squamous cell carcinoma patient can be accurately judged, the risk prediction performance is improved, and the risk prediction cost is reduced.

The invention discloses a gene chip for screening a primary cilium-related disease causative gene. The gene chip comprises hundreds of probes. The probes are used for detecting a primary cilium-related disease related gene. The gene chip realizes purposeful gene screening on primary cilium-related disease clinical phenotype cases, can fast and effective identify causative genes, and provides basis for primary cilium-related disease early diagnosis and individual treatment.

The invention discloses a metagenome-based clinical important pathogenic bacterium virulence gene detection method and system. The method comprises the following steps: s10, establishing a clinical pathogenic bacterium virulence gene database; s20, acquiring clinical sample metagenome sequencing original data, and preprocessing the clinical sample metagenome sequencing original data to obtain target data; s30, analyzing the target data by using a preset metagenome sequencing data multiple comparison annotation system, and identifying virulence genes; s40, establishing an important virulence gene-virulence factor-characterization (function/clinical phenotype) associated database; s50, generating a virulence gene identification report based on the virulence gene identification result and the association database by using a preset clinical automatic report system. The system can perform virulence gene identification on metagenome sequencing data of clinical infection samples of different types (cerebrospinal fluid and the like), and multiple important virulence genes of multiple pathogenic bacteria in the samples are identified at a time. The system has good sensitivity and accuracy and helps doctors to perform diagnosis, treatment and prognosis in time.

The invention discloses an accurate prediction method for pathogenic genetic variation. Known pathogenic variations are classified into two types: database variation and training set positive variation; partial evidences in an ACMG guide are obtained through the database variation; training set positive genetic variation data and corresponding phenotypic data of a patient are simulated through a random extraction method; guide related features are calculated; phenotype related features are calculated by utilizing an ERIC-based calculation method; and in combination with existing pathogenicityjudgment related features, and by utilizing a machine learning algorithm, variation pathogenicity prediction performed by comprehensively considering genotype data and phenotype data is realized. Themethod solves the problem that accurate prediction of variation pathogenicity cannot be performed due to incomplete clinical phenotype data, noises and inaccurate description in an actual scene.

The invention relates to the field of gene detection and bioinformatics, and discloses a method for mining complex disease markers based on transcriptome data, exon group/genome data and clinical phenotypes. The invention designs a set of calculation method for constructing a complex disease state evaluation model by integrating high-throughput sequencing data and clinical phenotypes, the calculation method is applied to targeted medication of colorectal cancer, pancreatic ductal cancer and pancreas ductal cancer, biomarkers related to diseases are screened respectively, and the correspondingdisease state evaluation model is formed. The marker considering both accuracy and mechanism interpretability is constructed through the method and can be used for prognosis evaluation of complex diseases, treatment effect prediction, treatment scheme assistant decision making and the like.

The invention discloses a gene panel for detecting single-gene genetic hypertension and application of a gene panel. By means of the gene panel, potential pathogenic gene mutation of single-gene genetic hypertension can be screened out of massive genetic information by means of targeted high-throughput sequencing in combination of a bioinformatics analysis means, and the positive detection rate ofmutation sites of single-gene genetic hypertension and application can be remarkably increased. The detection result of the gene panel is combined with clinical phenotype of a patient, etiological diagnosis of single-gene genetic hypertension and application of gene panel can be effectively assisted, and therefore the clinical disease diagnosis rate is increased, a specific and effective intervention treatment scheme is implemented aiming to specific illness states, and the effects of early finding, early intervention and prognosis improvement on single-gene genetic hypertension are achieved.According to the technical scheme, the remarkable advantages of being high in gene detection speed, high in disease diagnosis accurate and the like are achieved.

The invention provides a Marfan syndrome detection kit based on FBN1 gene c.5688-5689 insertion mutation, and belongs to the technical field of molecular biological detection. Whole blood DNA of Marfan syndrome family members is subjected to base sequence analysis, c.5688-5689insG base insertion variation (p.Arg1897Glufs) of the FBN1 gene is detected in family diseased members, and the variation is not detected in non-diseased members in the family. By detecting whether a subject carries the FBN1 gene c.5688-5689 insertion mutation or not, a carrier of the variation can be detected, molecular diagnosis and family genetic analysis of the Marfan syndrome can be facilitated, meanwhile, the relationship between gene mutation and clinical phenotype can be researched, a basis is provided for antenatal diagnosis possibly needed in the future, and the application prospect is wide. Meanwhile, a new target spot is provided for research and development of medicines for treating Marfan syndrome.

The invention provides a natural language processing method and system for clinical phenotype information of infertility. A Chinese clinical phenotype original character string is converted into a Chinese and English clinical phenotype initial character string, an independent character string and a split character string through natural language preprocessing, punctuation mark splitting and field splitting methods; and based on a pre-established Chinese and English ontology dictionary, accurate matching and fuzzy matching are performed on the clinical phenotype initial character string, the independent character string and the split character string, and finally one or more ontologies matched with the Chinese and English ontology dictionary are output through a weighting rule. The fuzzy matching is intended to be calculated through semantic approximation. The invention further provides a natural language processing system and a medium. The natural language processing system comprises a reading module, a conversion module, a splitting module, a matching module and an output module. According to the method, the problem of quick matching of Chinese clinical phenotype information and the ontology dictionary is solved, and convenience is brought to all-exon sequencing analysis of diseases such as infertility and the like.

An assay quantifies the extent of methylation in a DNA sample. Kits and clinical diagnostic assays include assays to determine clinical phenotypes based on extent of methylation of a DNA target site.

The invention relates to the field of gene detection and bioinformatics and discloses application of a complex disease state evaluation method constructed based on high-throughput sequencing data andclinical phenotypes in a pancreatic ductal carcinoma state evaluation model. The invention also provides a method for mining pancreatic ductal cancer complex disease markers based on transcriptome data, exon group/genome data and clinical phenotypes, designs a calculation method for constructing a pancreatic ductal cancer state evaluation model by integrating high-throughput sequencing data and clinical phenotypes, screens out biomarkers related to pancreatic ductal cancer and creates the corresponding disease state evaluation model. The markers having both accuracy and mechanism interpretability are constructed through the method, and can be used for pancreatic ductal cancer prognosis evaluation, treatment effect prediction, assistant decision making of treatment schemes and the like.

The autosomal dominant spinocerebellar ataxias (SCAs) represent a growing and heterogeneous clinical phenotype with ongoing discovery of causative etiologies. Methods: The authors collected DNA and clinically characterized a three-generation Filipino family segregating a dominant ataxia. Following elimination of several known SCA loci, a genome-wide linkage study was undertaken with additional fine mapping of 19q13. Results: Clinical characterization of affected family members revealed cerebellar signs including gait ataxia, limb ataxia/dysmetria, titubation, hypotonia, dysarthria, and nystagmus. Linkage was found in a ˜4 cM region of 19q13 bounded by markers D19S867 and D19S553, with a maximum LOD score of 3.89 at markers D19S904, D19S246, and D19S907. This region overlaps with, though markedly reduces the previously described SCA13 locus. Conclusion: An autosomal dominant cerebellar ataxia clinically distinguishable from SCA13 overlaps with the SCA13 locus on chromosome 19q13.3.