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38 results about "Mitochondrial respiratory chain" patented technology

In metabolic disease: Mitochondrial disorders The mitochondrial respiratory chain consists of five multi-subunit protein complexes that produce the majority of energy driving cellular reactions. Dysfunction of the respiratory chain leads to decreased energy production and to an increase in the production of toxic reactive oxygen species.

Enzyme activity detection method for mitochondrial respiratory chain compound I and reagents

The invention provides an enzyme activity analysis and detection method for mitochondrial respiratory chain compound I (NADH-Q reductase, EC1.6.5.3). The invention also provides reagents for detecting the enzyme activity of the mitochondrial respiratory chain compound I. The above method and the reagents can be used for analyzing and detecting the enzyme activity of the mitochondrial respiratory chain compound I in samples to be detected, and therefore the method and the reagents can be used for analysis, examination and diagnosis of clinic diseases. Based on the method, the reagents have advantages of convenience, rapidness and high sensitivity, and are convenient for popularization and application.
Owner:北京中科非凡生物技术有限公司

Sepsis diagnosis method and reagent

The invention provides a method for sepsis diagnosis, severity degree monitoring, and prognosis evaluation. The enzymatic activity level of mitochondrial respiratory chain supramolecular complex: NADH-cytosome coxidoreductase, NCR in the peripheral blood leucocyte namely mitochondrial NCR enzymatic activity level is closely related with the organ dysfunction and prognosis of sepsis. The invention also provides a detection method and detection reagent for detecting the peripheral blood leucocyte mitochondrial respiratory chain supramolecular complex NCR enzymatic activity. The provided method can rapidly, specifically, and sensitively measure the mitochondrial NCR enzymatic activity of a sample, and has an important meaning on the sepsis diagnosis, severity degree monitoring, and prognosis evaluation.
Owner:AFFILIATED CHILDRENS HOSPITAL OF CAPITAL INST OF PEDIATRICS +1

Quick extraction method of high-activity mitochondria in plant organs and special extracting solution thereof

The invention discloses a quick extraction method of high-activity mitochondria in plant organs and special extracting solution thereof. The quick extraction method comprises the following steps: mixing the plant organs, the extracting solution and grinding medium, homogenizing, collecting filtrate, carrying out differential centrifugal separation on the mitochondria in the plant organs, and thenadopting mitochondrial respiratory buffer solution for storage. The extracting solution is prepared from sucrose, sodium pyrophosphate, EDTA (Ethylene Diamine Tetraacetic Acid), potassium dihydrogen phosphate, BSA (Bovine Serum Albumin), cysteine, ascorbic acid and pvp-40. Proved by the experiment, the quick extraction method disclosed by the invention has the following advantages that the efficiency is high, i.e., the activity of the mitochondria is high; the applicability is wide, so that the quick extraction method can be applicable to extraction of the mitochondria of flower organs of multiple angiosperms; the storage time is long, and the activity can be maintained for 5 hours on an ice box, so that a great number of studies on the energy metabolism and the respiration of the mitochondria can be met; the operation is simple and the consumed time is short; the method provided by the invention lays a solid foundation for study on the respiratory chain and the energy metabolism of the mitochondria and has important practical application value.
Owner:BEIJING FORESTRY UNIVERSITY

Composite feed additive capable of improving liver mitochondria function of jewfish as well as preparation method and application of composite feed additive

The invention relates to a composite feed additive capable of improving liver mitochondria function of jewfish as well as a preparation method and application of the composite feed additive, and belongs to the field of feeds. Each 100 parts by weight of the composite feed additive comprises the following components in parts by weight of 6-10 parts of manganese chelate methionine, 2-6 parts of copper chelate methionine, 30-50 parts of berberine, 20-30 parts of creatine, 0.5-2 parts of red Fife yeast and the balance of a carrier. The raw materials of the composite feed additive are safe, harmless, and free from residues, and create condition for production of green feeds and aquatic products. According to the preparation method of the composite feed additive, the raw materials are mixed in compounding ratio. The preparation method is simple, good in condition controllability, and good in stability, and has favorable application prospects. The composite feed additive is applied to preparation of the feed for jewfish, so that the liver mitochondria antioxidant ability and the mitochondrial respiratory chain function of the jewfish can be improved, and the mitochondria oxidative damagecan be reduced.
Owner:JIMEI UNIV

Micro-nano hydrogel microsphere for targeted adjustment and control of mitochondrial respiratory chain as well as preparation and application of micro-nano hydrogel microsphere

The invention provides a micro-nano hydrogel microsphere for targeted adjustment of a mitochondrial respiratory chain as well as preparation and application of the micro-nano hydrogel microsphere. According to the invention, hyaluronic acid microspheres are prepared through a microfluidic technology, and SS-31 peptide and Wyrgrl peptide modified resveratrol-loaded long-circulating liposome are connected in a microsphere nano network through a non-covalent bond, so that a micro-nano hydrogel microsphere system with a targeted cell MRC adjustment function is constructed. The system has efficient cellular uptake efficiency and mitochondrial targeting, and can significantly improve the MRC function, reduce proton leakage, protect mitochondria, down-regulate ROS expression, and promote generation of cartilage extracellular matrix. Meanwhile, the system can effectively slow down the progress of osteoarthritis in a rat osteoarthritis model. The micro-nano hydrogel microsphere system for the targeted adjustment and control of the cell MRC function, provided by the invention, has great potential in treating various degenerative diseases related to MRC dysfunction.
Owner:川北医学院附属医院

Pro-oxidant Anti-cancer compounds

This invention relates to anti-cancer compounds and to methods for treating or preventing cancer. In particular, the invention concerns pro-oxidant anti-cancer compounds, such as pro-oxidant forms of vitamin E, that selectively interact with complex II of the mitochondrial respiratory chain of cancerous cells, generate reactive oxygen species and induce apoptosis of those cells.
Owner:CANCURE LTD

Application of d-usnic acid or combination of d-usnic acid and paclitaxel in preparing drug for treating and resisting lung squamous carcinoma

The invention discloses application of d-usnic acid in preparing drug for treating and resisting lung squamous carcinoma and application of a combination of d-usnic acid and paclitaxel in preparing drug for treating and resisting lung squamous carcinoma. Repeated experiments find that the d-usnic acid can reduce lung squamous carcinoma cell survival and can lead to explosive generation of reactiveoxygen species (ROS) by inhibiting mitochondrial respiratory chain and Nrf2 expression so as to remarkably induce lung squamous carcinoma cell apoptosis; combined application of the d-usnic acid andpaclitaxel can synergistically resist lung squamous carcinoma. Naked mouse tumor formation experiments prove effectiveness of the d-usnic acid in resisting lung squamous carcinoma in vivo and synergistic anticancer effect of the combination of the d-usnic acid and paclitaxel. An experiment basis is provided for selection of effective assistant drug for clinically resisting lung squamous carcinoma,and experimental data support to further develop the d-usnic acid which is a drug candidate for resisting lung squamous carcinoma and treatment schemes combining the d-usnic acid with paclitaxel.
Owner:GUANGDONG PHARMA UNIV

Rat long-chain non-coding lncRNA-lncMSTRG10078 and application of rat long-chain non-coding lncRNA-lncMSTRG10078 in resisting cell damage

The invention discloses a rat long-chain non-coding lncRNA-lncMSTRG10078 and an application of the rat long-chain non-coding lncRNA-lncMSTRG10078 in resisting cell damage. The sequence of the rat long-chain non-coding lncRNA-lncMSTRG10078 is shown as SEQ ID NO.1 or has homology with more than 190% of SEQ ID NO.1; according to the invention, objective existence of the sequence is proved through PCR; a full-length transcript of the sequence can be cloned; a pcDNA 3.0-lncMSTRG10078 overexpression vector is constructed, GH3 cells are transfected, and results show that overexpression of lncMSTRG10078 can significantly regulate mitochondrial respiratory chain subunits, inflammation, apoptosis and metabolic changes so as to resist cell damage; flow results can show that overexpression of lncMSTRG10078 can significantly inhibit the generation of reactive oxygen species (ROS) and apoptosis, and further prove that the sequence can enhance the effect of cells on resisting cell damage.
Owner:HUAZHONG AGRI UNIV

Immune cell treated by magnetic field and application thereof

The invention relates to an immune cell treated by a magnetic field and application thereof. According to the invention, a medium static magnetic field with the intensity of 0.3T can promote secretionof CD8<+> T cell granzyme and cell factors of a mouse, increase the level of ATP and mitochondrial respiration and up-regulate expression of related genes Uqcrb and / or Ndefs 6 of a mitochondrial respiratory chain. In addition, magnetic receptor candidate genes Isca1 and Cry1 / Cry2 participate in regulation and control of expression of Uqcrb and / or Ndefs 6. An in-vivo experiment shows that the static magnetic field can inhibit growth and development of tumors by promoting secretion of the CD8<+>T cell granzyme and the cell factors. A killing ability test shows that static magnetic field treatment can enhance the killing ability of CD8<+> T cells, and the CD8<+> T cells treated by the magnetic field have a remarkable anti-tumor effect when being transfused back into a tumor grafted mouse.The invention not only discloses that the medium-intensity static magnetic field can enhance the killing ability of the CD8<+> T cells by promoting mitochondrial respiration, but also provides a novel method for enhancing the anti-tumor function of the CD8<+> T cells by a physical method.
Owner:HEYE HEALTH TECH CO LTD +1

Eukaryotic genes involved in adult lifespan regulation

The present invention relates to regulation of adult lifespan in eukaryotes. More particularly, the present invention is directed to methods of assaying for genes, gene products, and genes in pathways controlled by such genes and gene products, using RNAi and microarray analysis, that regulate lifespan (e.g., extend or truncate adult lifespan) in eukaryotes such as invertebrates (e.g., C. elegans), plants, and mammals, e.g., humans. For example, the present invention is directed to genes encoding components of the mitochondrial respiratory chain and genes encoding glycolysis enzymes, which are involved in lifespan regulation, and genes and gene products in pathways controlled by such genes. Other genes and gene products identified as regulating aging and aging pathways include a gene encoding a GTPase; a transcriptional activator; novel genes: llw-1, llw-2, llw-3, and llw-4; genes encoding cytochrome P450 proteins (involved in steroid biosynthesis); a melatonin synthesis gene; genes encoding insulin and insulin-like peptides; genes encoding heat shock factors; genes encoding catalases; stress-response genes; and metabolic genes. The invention further relates to methods for identifying and using agents, including small molecule chemical compositions, antibodies, antisense nucleic acids, and ribozymes, that regulate, e.g., enhance, adult lifespan via modulation of aging associated proteins; as well as to the use of expression profiles, markers, and compositions in diagnosis and therapy related to lifespan extension, life expectancy, and aging. The present invention also relates to gene therapy involving lifespan associated genes.
Owner:RGT UNIV OF CALIFORNIA

Dysfunction of the mitochondrial respiratory chain, methods for diagnosis, treatment and follow-up

The invention relates to a method, of assessing whether a subject is affected with or at risk for developing a dysfunction of the mitochondrial respiratory chain, the method comprising determining the concentration of fibroblast growth factor 21 (FGF21) in a biological sample from the subject, and comparing it to the concentration of FGF21 in a biological sample from at least one normal control, wherein an increase in the concentration of FGF21 in the biological sample from the subject when compared to the concentration of FGF21 in the biological sample from at least one normal control is indicative of occurrence of the dysfunction of the mitochondrial respiratory chain in said subject, or of risk for developing said dysfunction. The invention also relates to a method for follow-up of a dysfunction of the mitochondrial respiratory chain in a subject diagnosed with but not being treated for said dysfunction, to a method for treating a subject having a dysfunction of the mitochondrial respiratory chain, to a method for determining whether a dysfunction of the mitochondrial respiratory chain in a subject diagnosed with and being treated for said dysfunction is responding to the treatment, and for selecting patients for clinical trials.
Owner:UNIVERSITY OF HELSINKI
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