67 results about "Trypanosoma sp" patented technology

A novel crystalline form of (S)—N-(5-((R)-2-(2,5-difluorophenyl)pyrrolidin-1-yl)-pyrazolo[1,5-a]pyrimidin-3-yl)-3-hydroxypyrrolidine-1-carboxamide, pharmaceutical compositions containing said crystalline form and the use of said crystalline form in the treatment of pain, cancer, inflammation, neurodegenerative disease or Trypanosoma cruzi infection are disclosed. In some embodiments, the novel crystalline form comprises a stable polymorph of (S)—N-(5-((R)-2-(2,5-difluorophenyl)pyrrolidin-1-yl)-pyrazolo[1,5-a]pyrimidin-3-yl)-3-hydroxypyrrolidine-1-carboxamide hydrogen sulfate. The present invention is further directed to a process for the preparation of the novel crystalline form.

Herein disclosed are rapid real-time isothermal multiplex methods of detecting, identifying and quantifying bacterial, viral, and protozoan nucleic acids in a sample. These include contacting the sample with two or more sets of pathogen-specific reverse transcription loop-mediated isothermal amplification primers and novel oligofluorophores specific for the target bacterial, viral, and parasitic nucleic acids of interest such as human immunodeficiency virus, Ebola virus, Marburg virus, Yellow fever virus, hepatitis-B virus, Lassa fever virus, Plasmodium, hepatitis-C virus, hepatitis-E virus, dengue virus, Chikungunya virus, Japanese Encephalitis virus, Middle Eastern Respiratory Syndrome Corona virus, Mycobacterium, West Nile virus, Cytomegalovirus, Parvovirus, Leishmania, Trypanosoma, and Zika virus nucleic acids, under conditions sufficient to produce detectable real-time amplification signals in about 10 to 40 minutes. The amplification signals are produced by pathogen-specific fluorogenic labels included in one or more of the primers. Also, novel reaction and sample lysis buffers, primers, and kits for rapid multiplex detection, quantification, and identification of bacterial, viral, and protozoan nucleic acids by real-time isothermal amplification are herein disclosed.

Molecular targets are identified in T. cruzi suitable for use in diagnosis of Chagas disease, drug development, and vaccines, including live vaccines.

Transfusion of contaminated blood has become the major route of transmission for Chagas' disease. Current screening tests are insensitive and yield conflicting results, while confirmatory assays do not exist. The present invention relates to antigens and their use for serological diagnosis of Chagas' disease. More specifically, the present invention concerns assays which are able to reliably and accurately detect the presence of antibodies to various specific antigens of Trypanosoma cruzi in a highly sensitive and specific manner.

The use of alkyl quaternary ammonium compounds including certain choline analogs for treating or preventing fungal and trypanosomal (e.g., Leishmaniasis) infections is described. These compounds, characterized as mono- and bis-alkyl ammonium compounds, were demonstrated to be highly effective in inhibiting growth of Candida albicans, Saccharomyces cerevisiae and Leishmania major. Quaternary ammonium compounds were previously known as effective antimalarial compounds in vivo but not recognized as antifungals or as anti-trypanosomals (e.g., anti-Leishmanials).

This disclosure provides improved derivatives of artemisinin; pharamaceutical compositions containing these compounds; methods for preparing these compounds and compositions; methods of using these compounds and compositions for preventing, controlling or treating infectious diseases including but not limited to parasitic infectious diseases such as T. gondii infection, trypanosome parasite infection, plasmodia parasite infection, and cryptosporidium parasite infection; methods for preventing, controlling or treating toxoplasma infection; and methods for treating psychiatric disorders associated with toxoplasma infection including but not limited to schizophrenia using the disclosed compounds and compositions alone or in combination with one or more antipsychotic drugs.

A sensitive, multicomponent diagnostic test for infection with T. cruzi, the causative agent of Chagas disease, including methods of making and methods of use. Also provided is a method for screening T. cruzi polypeptides to identify antigenic polypeptides for inclusion as components of the diagnostic test, as well as compositions containing antigenic T. cruzi polypeptides.

It is intended to provide a method of diagnosing infection with Chagas disease by screening a trypanocidal drugs for Trypanosoma cruzi which is the pathogen of Chagas disease. Using a flavin protein TcOYE specific to Trypanosoma cruzi, a trypanocidal drugs effective against Trypanosoma cruzi is screened. Using the gene sequence of TcOYE and an antibody therefor, infection with Trypanosoma cruzi is diagnosed.

A vaccine against the Chagas disease, capable of stimulating the immune response against the trans-sialidase virulence factor of the Trypanosoma cruzi parasite, which is a multicomponent vaccine comprising: (a) an immunogenic portion formed by one or more recombinant or synthetic polypeptides or fractions of thereof and (b) one or more polynucleotides including the regions codifying one or more immunogenic polypeptides, or a monocomponent vaccine comprising at least one component selected among an immunogenic portion formed by one or more recombinant or synthetic polypeptides or fractions of them and a group of polynucleotides including the regions codifying one or more immunogenic polypeptides derived from Trypanosoma cruzi and pharmaceutical compositions containing said multicomponent and monocomponent vaccines, the procedures for obtaining the immunogen portion of said vaccines and the nucleic acid used in the procedure.

The present invention has as an object a novel genetic material coding for trans-sialidase-like proteins of African trypanosomes, and relates to the use of said genes and proteins in vaccines, therapeutics and diagnostics. The present invention also relates to the immunization of human and / or nonhuman animals against trypanosomosis.

The present invention relates to a process for heterologous expression and large-scale production of functionally active enzyme trypanothione reductase of Leishmania donovani in prokaryotic system.

The present invention is directed to a Trypanosome-resistant, non-human transgenic animal whose somatic and germ cells comprise a nucleic acid which encodes an apolipoprotein L-I polypeptide (apoL-I). The apoL-I protein has the amino acid sequence selected from the group consisting of SEQ ID NO: 1, SEQ ID NO: 3, SEQ ID NO: 4, and SEQ ID NO: 5. The first nucleic acid transgene is operatively associated with at least one expression regulatory sequence. Methods of producing and raising such transgenic animals as well as transgenic eggs and sperm are also disclosed.

A vaccine against the Chagas disease, capable of stimulating the immune response against the trans-sialidase virulence factor of the Trypanosoma Cruzi parasite, which is a multicomponent vaccine comprising: (a) an immunogenic portion formed by one or more recombinant or synthetic polypeptides or fractions of thereof and (b) one or more polynucleotides including the regions that codifying one or more immunogenic polypeptides, or a monocomponent comprising at least one component selected among an immunogenic portion formed by one or more recombinant or synthetic polypeptides or fractions of them and a group of polynucleotides including the regions codifying one or more immunogenic polypeptides derived from Trypanosoma Cruzi and pharmaceutical compositions containing said multicomponent and monocomponent vaccines, the procedures for obtaining the immunogen portion of said vaccines and the nucleic acid used in the procedure.

A sensitive, multicomponent diagnostic test for infection with T. cruzi, the causative agent of Chagas disease, including methods of making and methods of use. Also provided is a method for screening T. cruzi polypeptides to identify antigenic polypeptides for inclusion as components of the diagnostic test, as well as compositions containing antigenic T. cruzi polypeptides.

The invention discloses application of a reagent combination for detecting pathogens in preparation of a kit for detecting the quality of a blood product. The pathogens are selected from a pathogen group consisting of HAV, HBV, HCV, HEV, TP, HIV1, HIV2, HTLV1, HTLV2, HBOV, TTV, HCMV, B19, DENV, ZIKV, WNV, babesia, trypanosoma krusei and plasmodium, and belongs to the field of medical examination.The invention further discloses a corresponding kit and a method for detecting the quality of the blood product. By means of the kit, the lowest detection limit of pathogens is 1.0 * 10 < 3 > copies / mL, the kit has good specificity and repeatability, and an important technology is provided for screening and evaluating blood transfusion transmitted pathogens.

The present invention relates to the diagnosis of Trypanosoma cruzi infection.

The invention discloses a combination slow release preparation for prevention and cure of livestock helminth, acarid and protozoon diseases, and the process for preparation comprising the steps of, using closantel and beta-cyclodextrin as the principal raw materials, carrying out rationalized proportioning and certain technological conditions, dissolving the closantel in solvent, charging distilled water into the beta-cyclodextrin, grinding till pasty state, mixing the two, drying and disintegrating.

The present invention relates to pyrazolopyridine derivatives, which are useful as medicaments, pharmaceutical compositions comprising one or more of the pyrazolopyridine derivatives, and the use of one or more of the pyrazolopyridine derivatives in methods for treating and / or preventing a disease caused or mediated by a parasite of the family Trypanosomatidae.

The present invention relates inter alia to attenuated live parasites of the phylum Apicomplexa and the family of Trypanosomatdae and to the use of such attenuated live parasites in a vaccine and in the manufacturing of such a vaccine. Furthermore, the present invention relates to vaccines comprising such attenuated live parasites and to methods for the production of such vaccines. Finally, the invention relates to specific tet-repressor fusion proteins and to attenuated live parasites according to the invention comprising such tet-repressor fusion proteins.

The present invention relates to certain nitroimidazole compounds, which have interesting pharmaceutical properties. In particular, the compounds are useful in the treatment and / or prevention of infections such as those caused by Mycobacterium tuberculosis, Trypanosoma cruzi or Leishmania donovani. The invention also relates to pharmaceutical compositions containing the compounds, as well as processes for their preparation.

The invention discloses a combination slow release preparation for prevention and cure of livestock helminth, acarid and protozoon diseases, and the process for preparation comprising the steps of, using closantel and beta-cyclodextrin as the principal raw materials, carrying out rationalized proportioning and certain technological conditions, dissolving the closantel in solvent, charging distilled water into the beta-cyclodextrin, grinding till pasty state, mixing the two, drying and disintegrating.

Methods are disclosed herein for detecting a genetic predisposition to focal segmental glomerulosclerosis (FSGS) or hypertensive end-stage kidney disease (ESKD) or both in a human subject, e.g., by detecting the presence of at least one single nucleotide polymorphism (SNP) in an APOL1 gene, such as the C-terminal exon of an APOL1 gene. In a further embodiment, methods are disclosed for detecting resistance of a subject to a disease associated with Trypanosoma infection, e.g., by detecting at least one single nucleotide polymorphism (SNP) in an APOL1 gene, such as the C-terminal exon of an APOL1 gene. Also disclosed are methods for treating a subject infected with T. brucei. The methods include administering a therapeutically effective amount of an APOL1 protein including a S342G substitution, an I384M substitution, and / or a deletion of N388 and Y389 to the subject.

The compounds of the invention exhibit antiprotozoal, antimicrobial, and anticancer properties that are useful for the treatment or prevention of infections or cancer in a patient (e.g., a human). For example, the compounds and methods described herein can be used for the treatment or prevention of protozoal infections such as leishmaniasis, malaria, and trypanosoma infections, bacterial infections such as S. aureus and C. albicans, and cancers such as breast, colon, lung, or prostate cancer. The invention further provides methods of synthesizing such compounds as well as kits useful for administering the compounds.

Novel mechanism-based inhibitors of S-adenosyl-L-methionine decarboxylase are provided. These compounds of formula (1) inhibit the life cycle of trypanosomes, and are useful to treat subjects infected with African trypanosomes. The invention includes pharmaceutical compositions and methods of using the compounds of formula (1).

The invention provides specific primers for the detection of Trypanosoma cruzi with the sequences as shown in SEQ ID No.1 and SEQ ID No.2, provides specific primers for the detection of Trypanosoma brucei with the sequences as shown in SEQ ID No.3 and SEQ ID No.4, provides specific primers for the detection of Trypanosoma brucei rhodesiense with the sequences as shown in SEQ ID No.5 and SEQ ID No.6, provides specific primers for the detection of Trypanosoma brucei gambiense with the sequences as shown in SEQ ID No.7 and SEQ ID No.8, provides a probe for the detection of Trypanosoma with the sequences as shown in SEQ ID No.9 to 26, and also provides a kit and a chip for the detection of Trypanosoma. In the invention, differential diagnosis for Trypanosoma infection can be specifically carried out.

The nucleotide sequence of Tc100, a gene encoding PTc100, a new Trypanosoma antigen, and the amino acid sequence of PTc100 are described. Tc100 and PTc100, or fragments thereof, modified or otherwise, can be used directly or indirectly for the detection of Trypanosoma cruzi, or for the monitoring of the infection generated by Trypanosoma cruzi, in man or in animals.

The present invention relates to a novel genetic material coding for trans-sialidase-like proteins belonging to the African trypanosomes, and relates to the use of said genes and proteins for vaccinal, therapeutic and diagnostic purposes. The present invention also relates to the immunization of humans and / or non-human animals against trypanosomiasis.

Methods are provided to inhibit proliferation of Trypanosoma cruzi with imido-substituted 1,4-naphthoquinones, including novel compounds. Administering an imido-substituted 1,4-naphthoquinone can be used to provide prophylaxis or treatment to a patient in need of treatment against Chagas disease.

Use of synthetic peptides derived from Trypanosoma cruzi antigens and their use in vaccination against trypomastigote infection and Chagas disease. T. cruzi uses several surface proteins to invade the host. In their role of protection, the surface protients ensure the targeting and invasion of specific cells or tissues. A conserved region in the family of mucin-associated surface proteins (MASP) was used to analyze the expression of MASP at different points of invasion and proved to be important for host cell invasion, thus suggesting MASP as a candidate for vaccine development. A synthetic peptide, MASPsyn, was studied and showed efficacy in stimulating antibody and cytokine production necessary for resistance against the parasite.

Provided herein are Aminopurine compounds of Formula (I) or pharmaceutically acceptable salts, tautomers, isotopologues, or stereoisomers thereof, wherein R1, R2, and R3 are as defined herein, compositions comprising an effective amount of an Aminopurine Compound, and methods for treating or preventing animal and human protozoal infections.