摘要:
The present invention relates to a method for identifying multi-modal associations between biomedical markers which allows for the determination of network nodes and/or high ranking network members or combinations thereof, indicative of having a diagnostic, prognostic or predictive value for a medical condition, in particular ovarian cancer. The present invention further relates to a biomedical marker or group of biomedical markers associated with a high likelihood of responsiveness of a subject to a cancer therapy, preferably a platinum based cancer therapy, wherein said bio-medical marker or group of biomedical markers comprises at least 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 8, 19, 20 or all markers selected from PKMYT1, SKIL, RAB8A, HIRIP3, CTNNB1, NGFR, ZCCHC11, LSP1, CD200, PAX8, CYBRD1, HOXC11, TCEAL1, FZD10,FZD1, BBS4, IRS2, TLX3, TSPAN2, TXN, and CFLAR. Furthermore, an assay for detecting, diagnosing, graduating, monitoring or prognosticating a medical condition, or for detecting, 1 diagnosing, monitoring or prognosticating the responsiveness of a subject to a therapy against said medical condition, in particular ovarian cancer, is provided, as well as a corresponding method for classifying a subject comprising and a medical decision support system.
摘要:
This invention relates to a method and an apparatus of controlling a release of a material carried by ultrasound sensitive particles, the release being caused by irradiating the ultrasound sensitive particles with an ultrasonic pulse having acoustic properties selected so as to interact with the ultrasound sensitive particles and thus causing the release of the material. The ultrasound sensitive particles comprise sub-groups of ultrasound sensitive particles, the ultrasound sensitive particles within the same sub-group having their respective acoustic property causing each respective sub-group to interact independently with the sound wave.
摘要:
A method of automatically identifying the microarray chip corners and probes, even if there are no probes at the corners, in a high density and high resolution microarray scanned image having an image space, wherein the method minimizes the error distortions in the image arising in the scanning process by applying to the image a multipass corner finding algorithm comprising: (a) applying a Radon transform to an input microarray image to project the image into an angle and distance space where it is possible to find the orientation of the straight lines; (b) applying a fast Fourier transform to the projected image of (a) to find the optimal tilting angle of the projected image; (c) determining the optimal first and last local maxima for the optimal tilting angle; (d) back projecting the determined first and last local maxima to the image space to find the first approximation of the first and last column lines of the image; (e) rotating the image and repeating steps (a) through (d) to find the first approximation of the top and bottom row lines of the image; (f) determining the first approximation of the four corners of the image from the intersection of the column and row lines; (g) applying a heuristic for determining if the first approximation of step (f) is sufficient; and (h) optionally trimming the scanned image around the first approximation of the four corners and repeating steps (a) through (f).
摘要:
The present invention relates to a method for the detection of a DNA methylation signature associated with the presence of or the predisposition to develop a disorder, the method comprising the identification of one or more candidate genes exhibiting differential DNA methylation in target and reference samples as well as the respective determination of the nucleic acid sites in said candidate genes that are differentially methylated and the recognition sites for DNA binding factors, said DNA binding factors each recognizing such a differentially methylated nucleic acid site, wherein the patterns of differentially methylated nucleic acid sites and of DNA binding factor recognition sites obtained together represent a DNA methylation signature that is indicative for the presence of or the predisposition to develop a disorder in a target sample.
摘要:
The present invention relates to a method of non-invasively monitoring the expression of a gene of interest in a cell when contacting said cell with a compound influencing the expression of said gene of interest. The present invention is also concerned with different isolated nucleic acid molecules comprising a coding sequence. Said coding sequence comprises a gene of interest-sequence encoding a gene of interest-polypeptide fused to a reporter sequence encoding a fluorescent reporter polypeptide and is operatively coupled to a promoter sequence. The present invention is also concerned with the use of a method and a nucleic acid molecule of the invention for delivering a compound influencing the expression of a gene of interest in a cell, monitoring the delivery of said compound as well as monitoring the influence on the expression of said gene fluorescence of interest induced by said compound at the same time.
摘要:
The invention features compositions and methods for in vivo expression analysis. The data presented herein demonstrates that ultrasound-enhanced delivery and/or expression of a composition for expression analysis comprising microbubbles vectors as well as a genetic payload, comprising a “always-on” promoter, a “reference” reporter gene, a “query” promoter and an “answer” reporter gene, enables in vivo analysis of gene expression both without requiring prior preparation (especially genetic modification) of the test subject (animal or patient) and without causing long term or systemic effects on the subject. Such an invention can be used, for example, to query the epigenotypic or phenotypic response of the individual subject to a foreign effector substance such as a pyrogen, pharmaceutical compound, pharmaceutical lead compound, an allergen, an autoimmunogene, a toxin, a polyclonal antibody, a monoclonal antibody, an antigen, a lipid, a carbohydrate, a peptide, a protein, a protein-complex, an amino acid, a fatty acid, a nucleotide, DNA, RNA, PNA, siRNA and micro RNA.
摘要:
Spectrogram extraction from DNA sequence has been known since 2001. A DNA spectrogram is generated by applying Fourier transform to convert a symbolic DNA sequence consisting of letters A, T, C, G into a visual representation that highlights periodicities of co-occurrence of DNA patterns. Given a DNA sequence or whole genomes, with this method it is easy to generate a large number of spectrogram images. However, the difficult part is to elucidate where are the repetitive patterns and to associate a biological and clinical meaning to them. The present disclosure provides systems and methods that facilitate the location and/or identification of repetitive DNA patterns, such as CpG islands, Alu repeats, tandem repeats and various types of satellite repeats. These repetitive elements can be found within a chromosome, within a genome or across genomes of various species. The disclosed systems and methods apply image processing operators to find prominent features in the vertical and horizontal direction of the DNA spectrograms. Systems and methods for fast, full scale analysis of the derived images using supervised machine learning methods are also disclosed. The disclosed systems and methods for detecting and/or classifying repetitive DNA patterns include: (a) comparative histogram method, (b) feature selection and classification using support vector machines and genetic algorithms, and (c) generation of spectrovideo from a plurality of spectral images.
摘要:
A content maintenance system uses a time-dependent precipitation function for iteratively augmenting or removing content over time, after an initial demonstration of user interest. A plurality of parallel precipitation processes can be launched simultaneously in response to different facets of a user expression of interest. Precipitation is dependent on highlighting or extracting segment descriptors from content of interest to the user. Then segments are filtered, rated, annotated and/or prioritized from that content. The remaining segments are matched against stored search structures. When the segments match, they are precipitated out for storage and can generate new search structures.
摘要:
A given video segment is configured to include links to one or more other video segments or information sources. The given video segment is processed in a video processing system to determine an association between an object, entity, characterization or other feature of the segment and at least one additional information source containing the same feature. The association is then utilized to access information from the additional information source, such that the accessed information can be displayed to a user in conjunction with or in place of the original video segment. A set of associations for the video segment can be stored in a database or other memory of the processing system, or incorporated into the video segment itself, e.g., in a transport stream of the video segment. The additional information source may be, e.g., an additional video segment which includes the designated feature, or a source of audio, text or other information containing the designated feature. The feature may be a video feature extracted from a frame of the video segment, e.g., an identification of a particular face, scene, event or object in the frame, an audio feature such as a music signature extraction, a speaker identification, or a transcript extraction, or a textual feature. The invention allows a user to access information by clicking on or otherwise selecting an object or other feature in a displayed video segment, thereby facilitating the retrieval of information related to that segment.
摘要:
A method for optimizing the performance of an algorithm for detecting predetermined content in a media information stream, and a program and apparatus that operate in accordance with the method. The algorithm is a function of a set of parameters. The method comprises the steps of performing the algorithm at least once to detect the predetermined content in the media information stream, while employing a respective set of parameters in the algorithm for each performance thereof, and automatically evolving at least one respective set of parameters employed in the algorithm to maximize the degree of accuracy at which the algorithm detects the predetermined content in the media information stream.