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Class 435/258.1 - Protozoa, media therefor


Subclass of Class 435 - Chemistry: molecular biology and microbiology
Definition: Subject matter wherein the microorganism propagated or treated
No. of patents: 78
Last issue date: 07/08/2008


1    
NumberTitleIssue Date
7396672Method for the production of dinoflagellate cultures
A method for selectively enhancing the growth of the population of a dinoflagellate comprises incubating a medium containing at least one dinoflagellate cell in the presence of mimosine or a toxic degradative product thereof is provided as well as isolates and cultu...
07/08/2008
7338766Compositions and methods for treating malaria with cupredoxin and cytochrome
The present invention relates to cupredoxin and cytochrome and their use, separately or together, to inhibit the spread of parasitemia in mammalian red blood cells and other tissues infected by the malaria parasite, and in particular the parasitemia of human red blo...
03/04/2008
7250286Methods for the in vitro culture of sp. and uses thereof
The invention relates to a method of excysting and growing protozoal oocysts by in vitro tissue culture resulting in production of a continuous culture of merozoites. The invention also provides an economical and reliable supply of cultured Eimeria sp. for va...
07/31/2007
7229615Method for the purification, recovery, and sporulation of cysts and oocysts
A vaccine for in ovo vaccination against avian coccidiosis produced by a method including obtaining the coccidial oocysts from a fecal suspension, homogenizing the fecal suspension, separating the oocysts from the fecal debris by either salt flotation using sodium s...
06/12/2007
7217550Nucleotide-sugar-synthesizing enzymes from nonparasitic protists
The present invention relates to nucleotide-sugar-synthesizing enzymes (enzymes with nucleotidyltransferase or pyrophosphorylase activity) from nonparasitic protists, to a process for the preparation thereof and to the use thereof for preparing nucleotide-sugars. Th...
05/15/2007
7169398Equine protozoal myeloencephalitis vaccine
The present invention provides an immunogenically active component comprising inactivated Sarcocystis neurona cells and/or inactivated Neospora hughesi cells; antigens derived therefrom; DNA derived therefrom; or a mixture; or in combination with other...
01/30/2007
7166290Methods for producing oocysts
The present invention provides improved methods and compositions for producing oocysts. The oocysts produced according to the invention find use in the manufacture of vaccines. In preferred embodiments, the present invention provides methods and compositions for the...
01/23/2007
7141245Process for preparation of a microbial agent
A method of killing mosquito larvae and particularly the species comprising Culex tritaeniorhynchus, Cx. pseudovishnui, Cx. (Cx) sp., Cx. (Lutzia) sp. and Anopheles hyrcanus group which comprises in allowing Chilodonella uncinat...
11/28/2006
7087425Method of purifying oocysts using enzymatic digestion of fecal debris
The invention provides methods and compositions for purifying protozoan oocysts. In particular embodiments, the oocysts are Eimeria oocysts. The methods comprise contacting a composition comprising fecal material and protozoan oocysts with polysaccharidase un...
08/08/2006
7081356Method for producing γ-linolenic acids from a ciliate culture by adding suitable precursor molecules to said culture medium
The intention relates to a method for the fermentative production of lipids/fatty acids having high concentrations of omega-6 fatty acids (PUFA, polyunsaturated fatty acids), especially γ-linolenic acids (GLA) in ciliates. Said lipids/fatty acids can be used in hum...
07/25/2006
7067315Identification of anti-protozoal agents
The present invention provides novel assay systems and methods for monitoring cell invasion by protozoal parasites. The present invention further provides methods of using these assays systems to identify compounds that treat or prevent protozoal infection. The pres...
06/27/2006
7045332BGL4 β-glucosidase and nucleic acids encoding the same
The present invention provides a novel β-glucosidase nucleic acid sequence, designated bgl4, and the corresponding BGL4 amino acid sequence. The invention also provides expression vectors and host cells comprising a nucleic acid sequence encoding BGL4, recombinant ...
05/16/2006
7018640In ovo vaccination against coccidiosis
The invention relates to a method of vaccinating a domesticated bird against coccidiosis comprising administering in ovo an effective immnunizing dose of live Eimeria sporozoites or merozoites, or a mixture thereof. In a preferred embodiment, the domesticated...
03/28/2006
6994861Attenuated live vaccine
The present invention provides attenuated live cultures of the pathogenic protozoan parasite, Neospora, and live vaccines against neosporosis prepared therefrom which are useful in the prevention of clinical disease and abortion in mammals. ...
02/07/2006
6984378Method for the purification, recovery, and sporulation of cysts and oocysts
A vaccine for in ovo vaccination against avian coccidiosis produced by a method including obtaining the coccidial oocysts from a fecal suspension, homogenizing the fecal suspension, separating the oocysts from the fecal debris by either salt flotation using sodium s...
01/10/2006
6969602Production of an immunovariant strain of contributes to strain cross-protection with other
An immunovariant strain of Eimeria maxima was isolated. Vaccines incorporating the immunovariant strain are effective in eliciting immunological protection against coccidial infection. ...
11/29/2005
6955908Organism associated with nongonococcal urethritis
The invention features a biologically pure culture of a newly identified single-celled organism Spiky Rotating Cells (SPR), methods to diagnose an SPR infection in a human patient, an instrument for collecting and detecting an SPR infection, and methods for treating...
10/18/2005
6949375Method for excystation of sporocysts
A process to excystate protozoal sporocysts involves treatment of an infected tissue sample with a sodium hypochlorite solution to stimulate excystation of the sporocysts from the tissue. Thereafter, removal of the sodium hypochlorite solution and treatment of the s...
09/27/2005
6902926Toxoplasma gondii apical membrane antigen-1
The invention provides polypeptide fragments derived from TgAMA-1, nucleic acids that encode the polypeptide fragments, and TgAMA-binding polypeptides such as antibodies. Methods for using the polypeptide and nucleic acid molecules to produce vaccines are also provi...
06/07/2005
6777222Antibodies to cryptosporidium
A method of producing IgG1 subclass antibodies reactive to the surface of Crystosporidium oocysts, the method comprising: (a) separating at least a protion of the Cryptosporidium oocyst wall from the internal sporozoites to form an oocyst-wall preparation; (b...
08/17/2004
6716617Fermentation method with continuous mass cultivation of ciliates (protozoa) for producing biogenous valuable substances
In the fermentation process according to the invention with continuous mass cultivation of ciliates (protozoa), the ciliate cells are cultivated in a complex axenic medium—free from living feed or prey organisms—and the biomass containing the desired biogenous v...
04/06/2004
6669969Pesticidal use of a parasitic flagellate for eliminating or suppressing harmful algae blooms
The present invention related to Parvilucifera infectans, a new parasitic organism described by Noren and Moestrup (in prep. "Parvilucifera infectans, gen. et. spec.nov. A parasitic dinoflagellate infecting thecate dinoflagellates.") capable of infecting ...
12/30/2003
6656479Attenuated live neospora vaccine
The present invention provides attenuated live cultures of the pathogenic protozoan parasite, Neospora, and live vaccines against neosporosis prepared therefrom which are useful in the prevention of clinical disease and abortion in mammals....
12/02/2003
6652847Attenuated strains of leishmania and uses thereof
Attenuated strains of Leishmania are provided in which at least one gene contributing to virulence of the strain and expressed in both the promastigote and amastigote forms of the strain is functionally disabled, such as, by deleting at least a portion of...
11/25/2003
6645751Nucleic acid isolated from Tetrahymena which codes for a triterpenoid cyclase, its production, and use
The present invention relates to nucleic acids isolated from Tetrahymena which code for a ciliate-specific triterpenoid cyclase. The inventive nucleotide sequences and the polypeptide sequences derived therefrom demonstrate a surprisingly minimal sequence...
11/11/2003
6630619Toxin genes from the bacteria Xenorhabdus nematophilus and photorhabdus luminescens
The invention relates to the identification and isolation of polynucleotide molecules encoding a new class of protein insecticidal toxins which are produced by bacteria from the genera Xenorhabdus and Photorhabdus. The polynucleotide molecules may be inco...
10/07/2003
6593128Method for culturing ciliates
The invention relates to a method for culturing ciliates comprising the steps of placing ciliates and medium therefor in a culture flask; providing said culture flask with a stirrer having a magnetic core, wherein said stirrer is suspended in the top part...
07/15/2003
6458581Process for the in vitro culture of different stages of tissue parasites
The present invention provides a method for carrying out in vitro the complete developmental sequence culture of tissular parasites, which includes culturing the parasites in a totally defined culture medium which is an axenic monophasic liquid culture me...
10/01/2002
6455036Granulated formulation and method for stabilizing biocontrol agents
A stabilized, granular, biocontrol agent formulation for agricultural pests relies upon a combination of a water absorbent material, a membrane stabilization agent, and a granulating agent to achieve the desired stability and free-flowing properties. The ...
09/24/2002
6440713Methods and compositions for suppressing growth of pathogenic microbes
Compositions comprising a plurality of yeast cells, wherein said plurality of yeast cells have been cultured in the presence of an alternating electric field having a specific frequency and a specific field strength for a period of time sufficient to subs...
08/27/2002
6403345Obtainment of γ-linolenic acid from protozoa of the genus colpidium
The present invention relates to a process for the preparation of γ-linolenic acid (GLA) from Colpidium and its use in foodstuffs, cosmetics and pharmaceuticals. Colpidium can be fermentatively cultured up to a high absolute yield of GLA in an optimized ...
06/11/2002
6368827Kinetoplastid protein expression system and methods
The invention relates to the expression of proteins in nonpathogenic protozoans. In particular, the invention relates to the expression and subsequent isolation of proteins from the nonpathogenic protozoan Crithidia....
04/09/2002
6291217Glutathionylspermidine synthetase and processes for recovery and use thereof
The present invention describes an enzyme showing glutathionylspermidine synthetase-activity and being distinct from known enzymes with similar activities in several physicochemical parameters, a novel process to isolate said enzyme from Crithidia fascicu...
09/18/2001
6287774Assay methods and system
Methods, systems, kits for carrying out a wide variety of different assays that comprise providing a first reagent mixture which comprises a first reagent having a fluorescent label. A second reagent is introduced into the first reagent mixture to produce...
09/11/2001
6262235Leptospiral outer membranes protein, LipL46
An antigenic preparation is provided containing an outer membrane protein associated with pathogenic strains of Leptospira. The protein has been designated "LipL46" for "lipoprotein from Leptospira" and because the isolated polypeptide migrates to a posit...
07/17/2001
6255097Two-phase system for the production and presentation of foreign antigens in hybrid live vaccines
The present invention relates to a genetic engineering process for the optimal production and exposure to the immune system of additional antigen coded for by a live vaccine. The genetic engineering process is based on the use of spontaneous DNA reorganis...
07/03/2001
6221366Intestinal protozoal vaccines
The invention provides vaccines and methods for preventing or treating intestinal protozoal infections in an animal. In particular, vaccines and methods for prevention or treatment of giardiasis are provided. The invention also encompasses methods of prep...
04/24/2001
6214357Treatment of diabetes
The present invention provides methods for using a killed malaria parasite or an extract thereof in the treatment of non-insulin dependent diabetes mellitus (NIDDM)....
04/10/2001
6162638Attenuated strains of leishmania and uses thereof
Attenuated strains of Leishmania are provided in which at least one gene contributing to virulence of the strain and expressed in both the promastigote and amastigote forms of the strain is functionally disabled, such as, by deleting at least a portion of...
12/19/2000
6143539UDP-glucose pyro phosphorylase enzymes from nonparasitic protozoa
The present invention relates to nucleotide-sugar-synthesizing enzymes (enzymes with nucleotidyltransferase or pyrophosphorylase activity) from nonparasitic protists, to a process for the preparation thereof and to the use thereof for preparing nucleotide...
11/07/2000
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