8 results about "Hereditary deafness" patented technology

The invention relates to the field of molecular biology and medical genetics, and particularly discloses a method for regulating and controlling transport of a TMC1 plasma membrane through TRAPPC3 and application of the method in an auditory function. The TMC1 is a core protein of a hair cell mechanical electrotransduction (MET) channel, and abnormal positioning of the TMC1 is closely related to hereditary hearing loss. The research finds that the transport protein particle compound component TRAPPC3 can specifically interact with the TMC1 protein to promote the TMC1 to be correctly positioned to a cell membrane from cytoplasm, so that the auditory function of hair cells is maintained. According to the method for regulating and controlling the positioning of the TMC1 from the cytoplasm to the cell membrane through co-expression of the TRAPPC3, a functional TMC1 channel can be reconstructed in a heterologous system, and the method is suitable for deafness molecular mechanism research, drug screening and gene therapy strategy development. According to the invention, the TRAPPC3-TMC1 interaction mechanism is provided for the first time, and a new intervention target is provided for hereditary hearing loss treatment.

The invention relates to the field of quality testing, and discloses a reagent detection method for a hereditary hearing loss high-frequency mutation site, which is used for providing a reliable measurement technical means for quality detection of a hereditary hearing loss high-frequency mutation site detection reagent. Comprising the following steps: acquiring original fluorescence physical signals of a reagent solution under a plurality of optical detection channels by using an optical detection instrument; performing photoelectric conversion and standardization on the repeated physical detection signals, and generating a weighted synthesis signal in combination with an expected response weight so as to evaluate the overall optical luminescence physical stability of the reagent solution; a correlation network between physical response signals of different detection channels is constructed, the luminescence dynamics consistency in a reagent solution system is quantified by calculating the global efficiency of the correlation network, and the fluctuation amplitude of the physical luminescence state of the reagent solution is accurately measured. According to the invention, comprehensive, sensitive and anti-interference closed-loop testing of real physical properties of the reagent materials can be realized.

The present disclosure belongs to the field of hearing impairment, and particularly relates to a genetic deafness detection system, a marker or a probe, a drug and applications. It is disclosed that Taperin forms a ring structure at the tapered region of the hair cell stereocilia root; it is determined that Taperin-Clic5-Ptprq forms a ring complex structure at the stereocilia root; the Taperin-Clic5-Ptprq ring complex structure is crucial for maintaining hearing, and its destruction will cause severe hearing loss; the expression amount of Taperin is crucial for maintaining and stabilizing the ring structure; the hearing loss caused by the destruction of the ring structure can be treated by gene delivery.

The invention discloses a deafness gene detection kit based on a molecular beacon and a medium probe and application, and relates to the technical field of molecular biology. The kit is used for single-tube detection of 15 mutation sites on four hereditary deafness genes, the detection kit comprises freeze-dried microspheres serving as standardized solid-state reagent units, the freeze-dried microspheres comprise specific primers, specific molecular beacons and specific medium probes, nucleotide sequences of the specific primers are shown as SEQ ID NO.35-SEQ ID NO.50, and nucleotide sequences of the specific molecular beacons and the specific medium probes are shown as SEQ ID NO.35-SEQ ID NO.50. The nucleotide sequences of the specific molecular beacons are as shown in SEQ ID NO.1 to SEQ ID NO.4, and the nucleotide sequences of the specific medium probes are as shown in SEQ ID NO.5 to SEQ ID NO.34. Compared with a traditional PCR technology, a chip technology and the like, the detection method provided by the invention can realize single-tube detection of different deafness genes, is simpler to operate, short in detection period and low in cost, and remarkably improves the detection sensitivity and accuracy.

The application particularly relates to a primer probe, a kit and application for detecting the GJB2 gene copy number of a non-syndromic hearing loss patient by using microdroplet digital PCR. The primer probe combination provided by the application comprises a target gene detection primer pair, a target gene detection probe, an upstream primer of a reference gene, a downstream primer of the reference gene and a reference gene probe, and the sequence information is shown as SEQ ID NO. 6-11; and the application further provides a kit for detecting the GJB2 gene copy number of a non-syndromic hearing loss patient. The primer probe combination and the kit provided by the application are applied to the detection of the GJB2 gene copy number variation of a non-syndromic hearing loss patient, and the accuracy of the detection of genetic hearing loss is significantly improved; according to the determination result, it is determined whether the GJB2 gene expression is abnormal or not, the disease prognosis is evaluated, potential therapeutic drugs are screened, genetic counseling services are provided or individualized medical schemes are formulated, and the application has a wide application prospect.

The invention discloses a primer group, a kit and a method for detecting STRC gene variation and application. The primer group comprises one or more of primer groups 1-8. Targeted enrichment based on the primer group is combined with three-generation sequencing, so that single nucleotide variation, insertion / deletion, exon copy number variation and structural variation caused by non-allelic homologous recombination of the STRC gene can be comprehensively and accurately detected, the cis-trans relationship between the variations can be defined, and an efficient tool is provided for diagnosis of hereditary hearing loss.

The invention provides a spontaneous deafness disease rat model constructed based on a cytosine base editor. The rat model provided by the invention lays a foundation for screening a base editor human source treatment target spot for gene therapy of Gjb2V37X point mutation human hereditary deafness, delivery of AAV and other vectors to a human Gjb2 overexpression vector and a base editor, clinical drug screening and a pathogenic mechanism of point mutation deafness on a V37 site on a human Gjb2 gene.

The application relates to a primer group, a kit and a method for detecting a plurality of disease-related gene mutation types. The application can simultaneously detect genetic deafness, thalassemia and spinal muscular atrophy disease-related gene mutation types, only needs one tube, and can simultaneously detect clinically common known pathogenic SNPs, INDELs and copy number variations in one experiment, thereby significantly improving the detection efficiency of the three diseases and the standardization degree of clinical detection. The primer group comprises: 1) a primer for detecting genetic deafness gene mutation types, as shown in SEQ ID NO: 1-30; 2) a primer for detecting thalassemia gene mutation types, as shown in SEQ ID NO: 31-340; 3) a primer for detecting spinal muscular atrophy gene mutation types, as shown in SEQ ID NO: 341-350; and 4) a primer for detecting a beta-actin housekeeping gene, as shown in SEQ ID NO: 351-352.