20 results about "Anti tubercular" patented technology

FIELD: pharmacology.SUBSTANCE invention can be used to determine the concentration of an anti-tuberculosis drug in blood serum. The method for determining the concentration of bedaquiline in the blood serum in patients with tuberculosis or mycobacteriosis is that whole blood samples are centrifuged at 3000 rpm for 20 minutes, then the blood plasma is collected in sterile 1.5 mL Eppendorf tubes, then 900 mcL of acetonitrile are added to 300 mcL of plasma and centrifuged at 13500g for 15 minutes, then 1 mL of the supernatant is transferred to a chromatographic vial and make the assay by UHPLC MS / MS using an Athena UHPLC C18, 1.8 mcM, 120A, 2.1×100 mm chromatography column, when using an aqueous solution containing 5 g / L of ammonium acetate, 25 ml / L of concentrated acetic acid, 2 ml / L trifluoroacetic acid as mobile phase A and 100% acetonitrile as mobile phase B, the concentration of bedaquiline is determined using a pre-plotted calibration curve.EFFECT: determination of bedaquiline in human blood plasma in a time not exceeding 6 minutes.1 cl, 9 dwg, 6 tbl

The present application relates to a kind of mycobacterium tuberculosis protective antigen combination and its application, specifically, the antigen of the application is combination antigen, at least includes the following antigen: Ag85B, Rv2465c, Rv2029c, Rv3406;The application is the vaccine for resisting mycobacterium tuberculosis.

This invention belongs to the field of vaccine technology, specifically relating to a method for effectively activating the body's immune system against tuberculosis infection by identifying candidate antigen epitopes for mRNA vaccines. The method comprises the following steps: screening for population-specific tuberculosis protective antigens based on reverse prediction from a TCR immune repertoire; constructing an mRNA vaccine containing these population-specific tuberculosis protective antigens and identifying the optimal antigen; and evaluating the in vivo immunogenicity, immunogenicity, and immunoprotective effects of the mRNA vaccine. This technical solution combines population-specific common HLA allele profiles with existing tuberculosis-specific TCR databases to target and predict broad-spectrum protective antigens recognized by TCRs shared under the major HLA backgrounds in the population. LNP-mRNA vaccine technology has been established as an ideal platform for delivering these newly discovered advantageous antigens.

This invention discloses a rapid phenotypic drug susceptibility detection method for Mycobacterium tuberculosis infected samples. The method utilizes the incorporation of deuterium into biomolecules synthesized by metabolically active Mycobacterium tuberculosis in a heavy water (D2O) environment, thereby generating C-D characteristic peaks in single-cell Raman spectroscopy. The inhibition of metabolic activity by anti-tuberculosis drugs leads to a decrease in the C-D signal. By calculating the metabolic change rate between drug-treated and untreated samples, the bacterial drug response can be quantified, and susceptibility / resistance determination and MIC value can be established. This invention provides a rapid phenotypic drug susceptibility detection method for Mycobacterium tuberculosis based on single-cell Raman spectroscopy and heavy water labeling technology (Raman-DIP). This method detects the metabolic changes of individual bacteria under the action of anti-tuberculosis drugs to determine drug susceptibility and minimum inhibitory concentration (MIC), enabling a rapid detection process from sample to result.

The application discloses application of elvitegravir in preparation of an inhibitor of mycobacterium tuberculosis or non-tuberculous mycobacteria, and relates to the technical field of biological medicine.The application discloses, for the first time, that elvitegravir has the effect of inhibiting intracellular survival of mycobacterium tuberculosis or non-tuberculous mycobacteria at the level of macrophages, has the effect of anti-tuberculosis at the level of macrophages, and can be applied to preparation of an inhibitor of mycobacterium tuberculosis or non-tuberculous mycobacteria.The application also discloses that the anti-tuberculosis effect of elvitegravir at the level of macrophages is not the direct action of antibiotics on bacteria, but the inhibition of intracellular survival of tubercle bacillus by targeting and regulating host immune response, so that elvitegravir also has the potential of an immunomodulator, can realize the anti-tuberculosis effect by regulating the immune response of the body to tubercle bacillus infection, and is not affected by drug resistance of mycobacterium tuberculosis, and has a good treatment effect on multidrug-resistant tuberculosis.

This invention discloses an oral suspension of an anti-tuberculosis drug and its preparation method. The oral suspension contains an anti-tuberculosis drug, a suspending agent, a surfactant, an antibacterial agent, an antioxidant, a flavoring agent, and a pH adjuster. It has technical advantages such as stable physical and chemical properties, uniform content, and easy long-term storage.

The present invention relates to a protective antigen combination of Mycobacterium tuberculosis and the use thereof. Specifically, the antigen is a combined antigen and contains at least the following antigens: Ag85B, Rv2465c, Rv2029c and Rv3406. The use is for the preparation of a vaccine against Mycobacterium tuberculosis.

The present application relates to the technical field of pharmacy, in particular to application of compound Diaporterpene C in preparation of mycobacterium tuberculosis tyrosine phosphatase inhibitor. The present application provides application of compound Diaporterpene C in preparation of mycobacterium tuberculosis tyrosine phosphatase inhibitor, the compound can significantly inhibit the activity of key virulence factor tyrosine phosphatase MptpA and MptpB of mycobacterium tuberculosis, can be used as tyrosine phosphatase inhibitor with MptpA and / or MptpB as target, and can be further developed as anti-tuberculosis drug. The compound shows good anti-tuberculosis activity by inhibiting pathogenic signal pathway of pathogenic bacteria, and has important clinical application potential and development value in tuberculosis treatment.

The application provides an improved recombinant bacillus Calmette-Guerin (BCG) and application thereof, and belongs to the technical field of biotechnology. The BCG ManLAM mutant strain is obtained by knocking out the coding gene of a key glycosyltransferase MptC for synthesizing the terminal mannose of ManLAM in the BCG, and is used as the improved BCG. Compared with the wild-type BCG, the improved BCG constructed in the application can promote the functional maturation of dendritic cells and improve the anti-tuberculosis infection immune response, can be used as a new vaccine for preventing tuberculosis or as an active ingredient for preparing a medicine for preventing and treating tuberculosis, and has a wide prospect in the development and clinical application of the new vaccine. In addition, the application provides a new tool and idea for the prevention and treatment of tuberculosis.

This invention relates to the field of in vitro diagnostic technology and provides a highly specific Mycobacterium tuberculosis antigen detection kit and detection method. The kit includes: a thermosensitive antigen aggregate composed of two or more of ESAT-6, CFP-10, and MPT-64 coupled with PNIPAM-b-PLL block copolymer, which spontaneously forms nanoscale antigen clusters at 37°C; dual-mechanism anti-fouling magnetic beads, which are Fe3O4@SiO2@PEG-polysulfobetaine three-layer core-shell structures, with a reference fluorescent dye embedded in the SiO₂ layer via covalent bonding, and the surface covalently coupled to the thermosensitive antigen aggregate via carboxyl groups; an AIE fluorescent probe, composed of AIE fluorescent microspheres coupled with an anti-tuberculosis antigen detection antibody; and a sample diluent. This invention achieves local enrichment of antigen through temperature-controlled aggregation, minimizes background through dual-mechanism anti-fouling magnetic beads (PEG steric hindrance + zwitterionic super hydration), and amplifies the signal and performs internal reference calibration through AIE ratio fluorescence. The three components work synergistically to achieve high sensitivity, low background, strong anti-interference ability, and easy operation for tuberculosis antigen detection.

This invention discloses the use of a combination of nitroimidazole derivatives in the preparation of drugs for the prevention and treatment of drug-resistant tuberculosis, belonging to the field of biomedical technology. This invention fills the clinical research gap regarding the use of combination drugs of nitroimidazole derivatives in the prevention and treatment of drug-resistant tuberculosis, providing a method for its application in the preparation of drugs for this purpose. This invention demonstrates good therapeutic effects against drug-resistant tuberculosis by combining nitroimidazole derivatives with various other anti-tuberculosis drugs, and shows promise as a new drug for the prevention and treatment of drug-resistant tuberculosis.

To provide a compound having antibacterial activity. [Solution] The present invention relates to a novel oxazolidinone (formula I) having ring A characterized by a monocyclic, bicyclic, or spirocyclic substituent containing nitrogen. The present invention relates to TIFF2026092059000321.tif3764 or pharmaceutically acceptable salts thereof, their preparations, and their use alone or in combination with other anti-infective agents as drugs for treating Mycobacterium tuberculosis and other microbial infections. The present invention generally relates to compounds having antibacterial activity, more specifically, anti-tuberculosis properties. In particular, the present invention relates to substituted phenyloxazolidinone compounds useful for treating tuberculosis in patients requiring treatment for tuberculosis.

This invention discloses the application of erteiravir in the preparation of inhibitors for Mycobacterium tuberculosis or non-tuberculous mycobacteria, relating to the field of biomedical technology. This invention discloses for the first time that erteiravir has the effect of inhibiting the intracellular survival of Mycobacterium tuberculosis or non-tuberculous mycobacteria at the macrophage level, exhibiting anti-tuberculosis activity at the macrophage level, and can be applied to the preparation of inhibitors for Mycobacterium tuberculosis or non-tuberculous mycobacteria. This invention also discloses that the anti-tuberculosis effect of erteiravir at the macrophage level does not act directly on bacteria as an antibiotic, but rather inhibits the intracellular survival of Mycobacterium tuberculosis by targeting and regulating the host immune response. Therefore, erteiravir also has the potential as an immunomodulator, achieving anti-tuberculosis effects by regulating the body's immune response to Mycobacterium tuberculosis infection without being affected by drug resistance of Mycobacterium tuberculosis, and has a good therapeutic effect on multidrug-resistant tuberculosis.

The application belongs to the technical field of medicine, and discloses application of genistein in preparation of medicine for resisting Mycobacterium tuberculosis. The application discloses application of genistein or a pharmaceutically acceptable derivative thereof in inhibition of Mycobacterium tuberculosis or preparation of products for resisting Mycobacterium tuberculosis. Experiments show that the MIC of genistein to M. tb H37Rv ΔleuΔpan and M. tb M. tb M. tb M. tb M. tb H37Ra is 0.03 mg / mL, and under the action of 30 μg / mL genistein, the minimum inhibitory concentration of a rifampicin-resistant strain is reduced from 50 μg / mL to 6.25 μg / mL, which greatly improves the sensitivity of the drug-resistant strain to rifampicin. Therefore, genistein can be used in preparation of medicine for resisting Mycobacterium tuberculosis or resisting tuberculosis alone, and can also be used as an auxiliary medicine for other anti-tuberculosis medicines for combined use, that is, the types of anti-tuberculosis medicines are widened and the course of treatment of tuberculosis is expected to be shortened.

The present application relates to a novel anti-tuberculosis engineered protein, and more specifically, to an anti-tuberculosis use of an engineered protein based on human tryptophanyl-tRNA synthetase 1 containing one or more amino acid variations. The engineered protein of the present application not only has high thermal stability, but also has an effect of significantly inhibiting the growth of Mycobacterium tuberculosis. Furthermore, it is confirmed through experiments that the engineered protein of the present application promotes intragranuloma infiltration of immune cells. This indicates that the engineered protein of the present application has excellent anti-tuberculosis efficacy and immune-enhancing efficacy, and can be variously utilized in the field of tuberculosis treatment and the field of immune enhancement.

This invention relates to an anti-Mycobacterium tuberculosis (Mtb) protein polypeptide and its applications, belonging to the field of biomedicine. Specifically, it discloses a Mycobacterium tuberculosis protein polypeptide Mce3A-P6 and its applications. This invention proposes that the Mce3A-P6 polypeptide and antibodies prepared using the Mce3A-P6 polypeptide as an antigen can effectively block the interaction between Mce3A and the host cell receptor GPR108, thereby significantly preventing Mtb invasion of host cells and ultimately inhibiting the Mtb infection process. Therefore, it has clinical application value in the treatment or prevention of tuberculosis.

A composition comprising a hypoxia-inducible factor prolyl hydroxylase inhibitor and an antituberculosis drug, and a use thereof in the preparation of medicines or health care products for preventing and treating chronic inflammatory anemia and infections. The obtained medicines or health care products can alleviate chronic inflammatory anemia caused by interference from mycobacterium tuberculosis, and can be used for treating tuberculosis.

The application discloses a kind of drug combination and its application.The application provides a kind of drug combination or pharmaceutical composition, the active component of the drug combination or pharmaceutical composition includes material A, material B, material C and material D;Material A is compound I or its pharmaceutically acceptable salt;Material B is isoniazid (H) or its pharmaceutically acceptable salt;Material C is rifampicin (R) or its pharmaceutically acceptable salt;Material D is pyrazinamide (Z) or its pharmaceutically acceptable salt.The drug combination or pharmaceutical composition of the application can reduce alveolar inflammation, pulmonary tuberculosis inflammatory lung injury and pulmonary tuberculosis secondary fibrosis, while increasing the penetration of anti-tuberculosis drugs in the lesion site, to accelerate the treatment response, reduce the risk of recurrence.

This invention discloses a plant pta The study of gene-inactivated BCG mutant strains and their applications falls under the fields of biotechnology and infectious disease prevention and control. Mutant strain B494 (accession number CCTCC NO.M 20253064) was obtained through screening a random insertion mutant library of Mycobacterium bovis BCG. Identification revealed that the mutation occurred in... pta The gene (SEQ ID NO.1), inactivation of which leads to impaired bacterial energy metabolism, intracellular acidification, decreased tolerance to environmental stress, and reduced survival and proliferation capacity within macrophages. This invention discloses... pta Genes play a central role in regulating mycobacterial metabolism and virulence. The mutant strain B494 exhibits significant attenuated characteristics and can serve as a candidate strain for novel attenuated live tuberculosis vaccines or for screening anti-tuberculosis drugs that regulate metabolism.

The application relates to the field of traditional Chinese medicine against tuberculosis, in particular to a compound extracted from Magnolia officinalis, a preparation method and application of the compound, the compound is shown as formula I, the compound can effectively inhibit the growth of Mycobacterium smegmatis, and can prevent and treat Mycobacterium smegmatis infection, and the MIC of the compound on Mycobacterium smegmatis is 60 ug / mL.