Mayo Foundation for Medical Education and Research

Bayer Corporation

Chiron Diagnostics Corporation

Ciba Corning Diagnostics Corp.

Bruce C Kline

Gurpreet S Sandhu

Franklin R Cockerill, Iii

James R Uhl

Marcia E Lewis

Glenn D Roberts

Leslie Stockman

Nucleic acid probes and primers are described for detecting fungi that cause disease in humans and animals, as well as spoilage of food and beverages. These probes can detect rRNA, rDNA or polymerase chain reaction products from a majority of fungi in clinical, environmental or food samples. Nucleic acid hybridization assay probes specific for Acremonium sp.,,Beauveria sp., Bipolaris sp., Blastoschizomyces sp.,,Chrysosporium sp., Cladosporium sp.,,var gattii serotype B,,serotype A,,Curvularia sp., Fusarium sp.,,(Cryptococcus),var bacillispora serotype C,,(Cryptococcus),var neoformans serotype D,,Geotrichum sp.,,Malbranchea sp., Mucor sp., Paecilomyces sp.,,Penicillium species,,Rhizopus sp.,,and,are also described.

Nucleic acid probes for the detection and identification of fungi

Nucleic acid probes and primers are described for detecting fungi that cause disease in humans and animals, as well as spoilage of food and beverages. These probes can detect rRNA, rDNA or polymerase chain reaction products from a majority of fungi in clinical, environmental or food samples. Nucleic acid hybridization assay probes specific for Acremonium sp., Aspergillus clavatus, Aspergillus flavus, Aspergillus fumigatus, Aspergillus glaucus, Aspergillus nidulans, Aspergillus niger, Aspergillus ochraceus, Aspergillus terreus, Aspergillus unguis, Aspergillus ustus, Beauveria sp., Bipolaris sp., Blastoschizomyces sp., Blastomyces dermatitidis, Candida albicans, Candida glabrata, Candida guilliermondii, Candida kefyr, Candida krusei, Candida lusitaniae, Candida parapsilosis, Candida tropicalis, Chrysosporium sp., Cladosporium sp., Coccidioides immitis, Cryptococcus neoformans var gattii serotype B, Cryptococcus neoformans serotype A, Cryptococcus laurentii, Cryptococcus terreus, Curvularia sp., Fusarium sp., Filobasidium capsuligenum, Filobasidiella (Cryptococcus) neoformans var bacillispora serotype C, Filobasidiella (Cryptococcus) neoformans var neoformans serotype D, Filobasidium uniguttulatum, Geotrichum sp., Histoplasma capsulatum, Malbranchea sp., Mucor sp., Paecilomyces sp., Penicillium species, Pseudallescheria boydii, Rhizopus sp., Sporothrix schenkii, Scopulariopsis brevicaulis, Scopulariopsis brumpti, Saccharomyces cerevisiae, and Trichosporon beigelii are also described.

Extraction of DNA by boiling cells in an alkaline phenol/guanidine

A method for selectively detecting M. tuberculosis is provided employing restriction fragment length polymorphism analysis of an enzymatic digest of the M. tuberculosis katG gene.

Mutations in the katG gene useful for detection of M. tuberculosis

Nucleic acid probes and primers are described for detecting fungi that cause disease in humans and animals, as well as spoilage of food and beverages. These probes can detect rRNA, rDNA or polymerase chain reaction products from a majority of fungi in clinical, environmental or food samples. Nucleic acid hybridization assay probes specific for Aspergillus fumigatus, Blastomyces dermatitidis, Candida albicans, Coccidioides immitis, Cryptococcus neoformans, Histoplasma capsulatum, Aspergillus flavus, Aspergillus glaucus, Aspergillus niger, Aspergillus terreus, Candida glabrata, Candida guilliermondii, Candida kefyr, Candida krusei, Candida lusitaniae, Candida parapsilosis, Candida tropicalis, Pseudallescheria boydii, and Sporothrix schenckii are also described.

The detection of the IS6110 insertion element in a clinical specimen is a rapid way of diagnosing infection by Mycobacterium tuberculosis. A reliable diagnostic test for tuberculosis based on the IS6110 DNA is described in this disclosure. A 'Universal' specimen preparation protocol that eliminates live organisms and purifies nucleic acids from all types of clinical specimens is described. Two nucleic acid primers designed to amplify IS6110 DNA with high specificity in a polymerase chain reaction are also described. The amplified IS6110 DNA is identified by a restriction endonuclease and electrophoresis based assay. The identification process also renders the DNA unamplifiable in a subsequent PCR, thereby reducing the possibility of contaminating other specimens. Time, labor and cost is minimized, while user safety and test reliability are maximized. The complete DNA extraction, amplification and analysis is accomplished with ease within an 8 hour period, with a sensitivity of 92% and a specificity approaching 100%. Testing of serially obtained samples from the same patient increases the overall rate of detection to 100%.

IS6110 based molecular detection of mycobacterium tuberculosis

A method for determining the susceptibility of a strain of M. tuberculosis to isoniazid is provided comprising employing the techniques of restriction length polymorphism analysis to determine whether or not the DNA of said strain has an NciI-MspI restriction site at the codon corresponding to codon 463 of an M. tuberculosis katG gene consensus sequence.

Detection of isoniazid resistent strains of M. tuberculosis

A method for determining the susceptibility of a strain of M. tuberculosis to isoniazid is provided comprising employing the techniques of restriction fragment length polymorphism analysis to determine whether or not the DNA of said strain has an MspI restriction site at the codon corresponding to codons 315 or 463 of an M. tuberculosis katG gene consensus sequence.

Growing community of inventors

Rochester, MN, United States of America

Bruce C Kline