205 results about "Bacillus anthracis" patented technology

The invention is for the combination and related methods of N-acetyl-cysteine oral, inhaled, or intravenous, or glutathione inhaled or intravenous, generally in combination with antibiotic and / or antiviral therapy to ameliorate the toxic effects of infection with materials used in Bioterror incidents such as Bacillus anthracis and smallpox virus, and alternatively, upon exposure to radiation, during testing, and vaccination, as treatment prior to treatment with antibiotic or antiviral therapy to ameliorate the toxic effects of infection and exposure with these organisms.

A method of detection is provided that permits differentiation of each of Bacillus cereus, Bacillus thuringiensis, and Bacillus anthracis from other microorganisms, using oligonucleotide primers for amplification of the target nucleotide sequences characteristic to Bacillus cereus, Bacillus thuringiensis, and Bacillus anthracis, consisting of the oligonucleotide (A) having a nucleotide sequence obtained from SEQ ID NO:1 and containing at least one site that can amplify a nucleotide sequence characteristic to Bacillus cereus, the oligonucleotide (B) having a nucleotide sequence obtained from SEQ ID NO:3 and containing at least one site that can amplify a nucleotide sequence characteristic to Bacillus thuringiensis, and the oligonucleotide (C) having a nucleotide sequence obtained from SEQ ID NO:5 and containing at least one site that can amplify a nucleotide sequence characteristic to Bacillus anthracis. Also provided are a method of detection of Bacillus cereus, Bacillus thuringiensis, and Bacillus anthracis by polymerase chain reaction (PCR) using a primer specific to the DNA gyrase sub-unit B (gyrB) gene and a method of detection of Bacillus cereus, Bacillus thuringiensis, and Bacillus anthracis in a sample by differentiation on the genetic level.

The invention comprises a substrate for detection of micro-organisms, wherein said substrate comprises a set of molecular markers linked, optionally with linker molecules or moeieties, to a di-, or tripeptide consisting of amino acids X1 and X2, or X1, X2 and X3, in which one of them, for example X1, is a D-amino acid and the others, for example X2 and X3, may be any D- or L-amino acid. Said substrate preferably is used for the detection of Bacillus anthracis. Alternatively, the invention is directed to a substrate for detection of micro-organisms, more specifically P. aeruginosa, wherein said substrate comprises a set of molecular markers linked, optionally with linker molecules or moeities to a tri- tetra or pentapeptide consisting of glycine amino acids. The invention further comprises methods for detection of micro-organisms, specifically Bacillus anthracis and Pseudomonas aeruginosa, with the substrates of the invention and use of the substrate(s) in such a method.

The present invention relates the use photosensitizers to inactivate bacterial spores of bacterial species including Bacillus anthracis. Methods of the present invention are useful in the decontamination and treatment of living animals and in the decontamination of inanimate objects and substances.

The invention provides a gene, recombinant plasmid and polypeptide for an anti-tumor binary polypeptide. The gene of the recombinant anti-tumor binary polypeptide is obtained by connecting in an operable way the gene of a coding antibody simulator with a recombinant bacillus anthraci protein antigen gene. The recombinant plasmid of the invention is formed by inserting the gene of the coding antibody simulator by double-chain oligomeric nucleotide directed mutagenesis method into the recombinant bacillus anthraci protein antigen gene. The obtained recombinant plasmid is infected into engineering bacillus coli BL-21 to get engineering bacillus coli cell of anti-tumor binary polypeptide; the anti-tumor binary polypeptide can be obtained by expanding the bacillus coli, settling in centrifugal way the bacillus coli body, crushing in altrasonic way, settling and crushing bacillus coli body by hi-speed centrifuging and treating the upper clean solution. The anti-tumor binary polypeptide is of special targeting characteristic, higher efficiency in killing special physical tumor than prior anti-tumor medicine, and will not attack normal cells, and has much lower toxicity and poor-reaction than prior anti-tumor medicine.

The invention relates to a gene chip for high-flux detection of pathogens and application thereof. The gene comprises (1) a combination of 174 oligonucleotide probes of pathogen variety specific genes, toxin genes and drug-resistant genes; and (2) a probe array, which is formed by curing the oligonucleotide probes on a carrier material by arm molecules. The gene chip comprises 174 gene probes, namely 32 pathogen variety specific gene probes of the following 8 pathogens of Burkholderia mallei, Burkholderia pseudomallei, Brucella, salmonella, Yersinia pestis, Bacillus anthracis, comma bacillus and the like, 25 toxin gene probe of the following 7 toxins of diphtheria toxin, Shiga toxin, staphylococcus enterotoxin, choleratoxin and the like, and 117 drug-resistant gene probes of 17 drug-resistant genes of extended-spectrum beta-lactamase, cephalosporinase, carbapenemase, integrase gene, common gene engineering carrier drug-resistant gene and the like. The gene chip can be used to detect multiple pathogen variety specific genes, toxin genes and drug-resistant genes.

The invention provides a heterogeneous immunoassay for detection of antibodies and antigens based on specific antigen-antibody immune complex formation with multiple antigen-bearing conjugate components. The invention further provides means for optimizing the assay format for the detection of both low and high-affinity antibodies, and provides means for quantitative detection of both antibody and the corresponding antigen present in a sample. In preferred embodiments, the invention can be practiced to detect presence in biological fluid samples of antibodies to Bacillus anthracis related antigens.

The invention discloses a rate-type rare-earth fluorescent probe Tb / DPA@SiO2-Eu / GMP, a preparation method of visual test paper and an application thereof in the aspect of detecting bacillus-anthracis biomarker, namely 2, 6 dipicolinic acid (DPA). After the fluorescent probe is synthesized by a reverse microemulsion method, the quantitative detection for the concentration of the DPA is realized by utilizing a time-resolved fluorescence analysis method. Further, the portable visual test paper is prepared by soaking filter paper in a fluorescent probe solution, and can be applied to mobile-phone software for recognizing colors to detect the concentration of the DPA. The invention has the advantages that the currently-common traditional detection mode is changed, the complex operation process is not needed and the cost is saved. The invention has the characteristics of high accuracy, sensitivity and selectivity. The prepared test paper has the advantages of being convenient in carry and use, low in price and the like and has wide application prospect.

The invention provides an anti-anthrax polypeptide gene, a recombinant plasmid, a polypeptide, the application and a process for preparation which comprises following steps: operationally connecting a gene of an encoding antibody simulacrum with the gene of an encoding recombinant mutation bacillus anthracis proteantigen to obtain the gene which expresses a recombinant anti-anthrax polypeptide, inserting the gene of the encoding antibody simulacrum into the gene of the recombinant mutation bacillus anthracis proteantigen through the technique of double chain oligonucleotide point mutation to form the recombinant plasmid of the invention, transfecting the recombinant plasmid which is obtained into coli bacteria BL-21 project engineering bacteria to obtain engineering bacteria cells of the anti-anthrax polypeptide, obtaining the anti-anthrax polypeptide through extracting supernate which contains polypeptide from a great amount of increasing bacteria, centrifugal precipitation cells and saccharose with an addex-magnesiumand method and purifying the supernate with florisil column. The anti-anthrax polypeptide specifically can damage the biological activity of bacillus anthracis toxin and does not attack normal human cells.

A weak organic acid is used to effect the release of CaDPA from Bacillus or Clostridium endospores, rapidly and at room temperature, to enable detection and measurement of DPA and thereby the assessment of risk associated with exposure to Bacillus anthracis, Clostridium botulinum, and like spores. The method can be applied to airborne, food-borne, and water-borne spores, as well as to spores collected from surfaces or contained in body fluids, and analysis is advantageously carried out using surface-enhanced Raman spectroscopy.

The invention describes novel organic nitric oxide donor salts of a antimicrobial compounds, and novel compositions and kits comprising at least one organic nitric oxide donor salt of an antimicrobial compound, and, optionally, at least one nitric oxide enhancing compound and / or at least one therapeutic agent. The invention also provides methods for (a) treating bacterial infections; (b) treating viral infections; (c) treating fungal infections; and (d) treating lesions. In one embodiment the antimicrobial compounds of the invention are aztreonam, ciprofloxacin, doripenam, duramycin and tobramycin. The organic nitric oxide donors that form salts are preferably organic nitrates, organic nitrites, nitrosothiols, thionitrites and heterocyclic nitric oxide donors. The heterocyclic nitric oxide donors are preferably furoxans, sydnonimines, oxatriazole-5-ones and / or oxatriazole-5-imines. The methods of the invention are preferably for the treatment of bacterial infections associated with pulmonary diseases such as cystic fibrosis and for treating Bacillus anthracis infections.

The present invention provides monoclonal antibodies which are highly specific for Bacillus spores. Also provided are peptides derived from those monoclonal antibodies. Both the antibodies and peptides are highly specific and can discriminate between spores of potentially lethal organisms such as Bacillus anthracis and other harmless but closely related bacilli and provide a very powerful tool in the construction of detection instruments as counter measures.

The invention describes compositions and kits comprising at least one nitric oxide enhancing group antimicrobial compound, or pharmaceutically acceptable salts thereof, and novel compositions comprising at least one nitric oxide enhancing antimicrobial compound, and, optionally, at least one nitric oxide enhancing compound and / or at least one therapeutic agent. The invention also provides methods for (a) treating bacterial infections; (b) treating viral infections; (c) treating fungal infections; and (d) treating lesions. The antimicrobial compounds of the invention are preferably tobramycin, aztreonam, ciprofloxacin and doripenam. The nitric oxide enhancing antimicrobial compounds are substituted with at least one heterocyclic nitric oxide donor group and / or at least one nitroxide group. The nitric oxide enhancing groups are nitroxides and / or heterocyclic nitric oxide donors. The heterocyclic nitric oxide donors are furoxans, sydnonimines, oxatriazole-5-ones and / or oxatriazole-5-imines. In one embodiment the methods of the invention are for the treatment of bacterial infections associated with pulmonary diseases such as cystic fibrosis and for treating Bacillus anthracis infections.

Chromogenic 3-Indoxyl choline phosphate compounds of formula (I):wherein R is selected from the group consisting of hydrogen and C1-4 alkyl, such as methyl, ethyl, propyl and butyl while R<1>, R<2>, R<3>, and R<4 >are independently selected from the group consisting of hydrogen, halogen, cyano, nitro, carboxy, amino, amino substituted with one or two C1-4 alkyl groups, aminomethyl, hydroxy, C1-4 alkoxy, carboxyalkyl, and sulphonyl. These compounds are capable of being cleaved by lecithinase C leading to products which are calorimetrically detectable. The invention provides safe and sensitive detection of potentially pathogenic bacterial activity of such microbes as Clostridium perfringens, Bacillus cereus, Bacillus anthracis, Pseudomonas aeruginosa, Listeria monocytogenes, Heliobacter pylori, Legionella pneumophila, and others in material which may contain such activity typically including physiological samples, goods for consumption, such as food and beverages, and any other potentially infected objects or articles.

The present invention relates to conjugates of oligosaccharides of formula 1, wherein R is a linker to a carrier protein and optionally comprises up to three further saccharides, 5 and which are useful for vaccination, methods of synthesis of such conjugates, antibodies against this antigen, hybridoma producing monoclonal antibodies against this antigen, assays using these antibodies for the detection of B. anthracis spores and kits comprising these antibodies, and a vaccine for the prevention of B. anthracis infection comprising the conjugates of oligosaccharides of formula 1. Monoclonal antibodies 10 according to the invention selectively bind to B. anthracis, but not to related bacteria such as B. subtilis, B. cereus and other bacteria of this group such as B. thuringiensis.

The present invention provides methods and compositions for the stimulation of immune responses. Specifically, the present invention provides methods of inducing an immune response against one or a plurality of pathogens (e.g., vaccinia virus, H5N1 influenza virus, Bacillus anthracis, C. botulinum, Y. pestis, Hepatits B, and / or HIV, etc.) in a subject (e.g., a human subject) and compositions useful in such methods (e.g., immunogenic composition comprising nanoemulsion and one or a plurality of pathogens (e.g., inactivated by the nanoemulsion) and / or pathogen products and / or pathogen components). Compositions and methods of the present invention find use in, among other things, clinical (e.g. therapeutic and preventative medicine (e.g., vaccination)) and research applications

The invention discloses a method for detecting pathogens of infectious diseases, which possibly exist in a biological sample. The pathogens of the infectious diseases comprise avian influenza virus H5 subtype, avian influenza virus H7 subtype, SARS coronavirus, hanta virus, plague yersinia pestis and bacillus anthracis. The method comprises amplifying a nucleic acid fragment of a biological sample and detection by a probe. The invention also provides a primer for amplification and a probe for detection. The invention also provides a kit including the primer. The method has the advantages of high flexibility, strong specificity, easy operation, wide sample range, the detection for the pathogens of various infectious diseases at the same time and the suitability for early diagnosis of respiratory infectious diseases.

The present application is to provide a composition and method for stabilizing and maintaining the viability of hardy microorganisms from sample collection to downstream analysis. In particular, there is a method for preserving viable hardy bacteria, such as Mycobacteria, Bacillus anthracis, or Clostridium difficile, in a biological sample, comprising contacting the biological sample with a stabilization composition, wherein the stabilization composition comprises a chelating agent, a denaturing, a salt and has a pH between about 6 and about 11.

The invention relates to a multiplex PCR-based synchronous and rapid method for detecting 13 pathogenic microorganisms in water, which comprises the steps of using multiplex PCR to simultaneously amplify gene-specific fragments of the 13 pathogenic microorganisms including escherichia coli, enterohaemorragic escherichia coli o157:h7, legionella pneumophila, salmonella enteritidis, shigella dysenteriae, staphyloccocus aureus, listeria monoeytogenes, helicobacter pylori, mycobacterium tuberculosis, klebsiella pneumonia, vibrio cholera, bacillus anthracis and yersinia pestis, and detecting PCR amplified products through agarose gel electrophoresis, thereby achieving synchronous and rapid detection for the 13 pathogenic microorganisms.

The invention discloses a COD (chemical oxygen demand) degradation microbial inoculant which comprises the following components in percentage by volume: 15-20% (preferably 20%) of Bacillus subtilis, 10-15% (preferably 15%) of Bacillus amyloliquefaciens, 10-20% (preferably 10%) of Bacillus anthracis, 10-15% (preferably 10%) of Staphylococcus pasteuri, 10-15% (preferably 10%) of Aerococcus viridans, 10-20% (preferably 10%) of Lactobacillus casei, 10-15% (preferably 10%) of Lysinibacillus fusiformis and 15-20% (preferably 15%) of Enterococcus. The COD degradation microbial inoculant effectively lowers the turbidity of the water body, and enhances the weight concentration of the water body on the premise of implementing environmental protection and saving water. The invention also discloses a preparation method and application of the COD degradation microbial inoculant.

The invention discloses a genetic liquid phase chip for rapid detection of five drastic pathogenic bacteria of bacillus anthracis, yersinia pestis, brucella bacteria, francisella tularensis and burkholderia pseudomallei. The liquid phase chip for detecting the five drastic pathogenic bacteria has the advantages of large flux, less required sample capacity, strong specificity, high sensitivity, accuracy, high efficiency, and the like.

The invention relates to recombinant standard plasmids for detecting anthrax bacillus. The plasmid comprises a PGEM-T easy carrier and cascaded PA genes, capA genes and rpoB genes and is recorded as PGEM-T-easy-PCR. The invention further relates to a kit containing the recombinant standard plasmids. The invention also relates to a construction method for the recombinant standard plasmids, and themethod comprises the steps of designing primer pairs, amplifying sequences, constructing first intermediate plasmids, constructing second intermediate plasmids and constructing the recombinant standard plasmids. The recombinant standard plasmid PGEM-T-easy-PCR provided in the invention can be used as a substitute of a positive standard sample of anthrax bacillus (ie. nucleic acid of a virulent strain of anthrax bacillus).

A process and a system using a disinfecting atmosphere for deactivating Bacillus bacteria and its spores, such as Bacillus anthracis (anthrax) and C Botulinum and its spores, commonly proposed as bioterrorism threats, are described. Said disinfecting atmosphere includes ozone at a concentration of 2-350 ppm by weight and hydrogen peroxide at an amount of 0.2-10 weight percent at a relative humidity of at least 60%.

The invention discloses an aromatic sulfur acetyl pyridine derivative and a preparation method and application thereof. The preparation method comprises the following steps of: completely dissolving 2-mercaptopyridine with a polar protic solvent; and then adding alkali metal hydroxide for activating; and then reacting with an aromatic acetyl chloride compound; pouring products into over-dose water, allowing to stand still, and filtering, recrystallizing, and drying to obtain the aromatic sulfur acetyl pyridine derivative used as pesticide bactericide. The invention has the advantages of simple preparation method and easily controlled conditions, and obtained aromatic sulfur acetyl pyridine derivative has good effects on the prevention and the control of Bacillus anthracis of cucumber and sclerotinia sclerotiorum of rape and wild cabbage.

A method of decontaminating a structure contaminated by pathogenic microorganisms such as bacillus anthracis and its spores, B. subtilis var niger and its spores, and B. stearothermophilus and its spores. The steps include sealing a contaminated structure sufficiently to enable retention of a gas, introducing methyl bromide gas into sealed contaminated structure to a concentration of methyl bromide in an amount sufficient to deactivate said pathogenic microorganisms and to disable germination of pathogenic bacteria spores, and maintaining said sealed contaminated structure with said concentration of methyl bromide at a sufficient temperature for a sufficient period of time, and deactivating said pathogenic microorganisms and disabling germination of said pathogenic bacteria spores associated with said contaminated structure. The method is performed approximately in the range of 20° C. to 40° C., and the concentration of methyl bromide is about 80 mg / l to 303 mg / l during the decontamination. Humidity is not a factor in the efficacy of this treatment process.

Method for hyper-spectral imaging and analysis of a sample of matter, for identifying and characterizing an object of interest therein. Preparing test solution or suspension of the sample, including adding thereto a spectral marker specific to object of interest, such that if object of interest is in test solution or suspension, object of interest becomes a hyper-spectrally active target which is hyper-spectrally detectable and identifiable; adding to test solution or suspension a background reducing chemical, for reducing background interfering effects caused by presence of objects of non-interest in test solution or suspension, thereby increasing hyper-spectral detectability of hyper-spectrally active target in test solution or suspension; generating and collecting hyper-spectral image data and information of test solution or suspension; and, processing and analyzing thereof. Exemplary objects of interest are biological agents—bacteria (Bacillus anthracis), viruses, fungi, toxins, or, chemical agents—nerve agents (sarin, tabun, soman), and chemical poisons.