LIVIVO - The Search Portal for Life Sciences

zur deutschen Oberfläche wechseln
Advanced search

Search results

Result 1 - 10 of total 172

Search options

  1. Article ; Online: Detection of Immunoglobulin G Antibodies to

    Moss, Delynn M / Handali, Sukwan / Chard, Anna N / Trinies, Victoria / Bullard, Stevan / Wiegand, Ryan E / Doumbia, Seydou / Freeman, Matthew C / Lammie, Patrick J

    The American journal of tropical medicine and hygiene

    2018  Volume 98, Issue 5, Page(s) 1408–1412

    Abstract: ... Immunoglobulin (Ig) G responses to several antigens/pathogens were assessed by a multiplex bead assay (MBA), and ...

    Abstract Blood samples from 805 students attending 42 elementary schools in Mopti, Sikasso, and Koulikoro regions, and Bamako district in Mali participated in a school water, sanitation, and hygiene intervention. Immunoglobulin (Ig) G responses to several antigens/pathogens were assessed by a multiplex bead assay (MBA), and the recombinant
    MeSH term(s) Animals ; Antigens, Helminth/blood ; Biomarkers ; Child ; Cysticercosis/epidemiology ; Cysticercosis/parasitology ; Humans ; Immunoglobulin G/blood ; Immunomagnetic Separation/methods ; Mali/epidemiology ; Taenia solium/immunology
    Chemical Substances Antigens, Helminth ; Biomarkers ; Immunoglobulin G
    Language English
    Publishing date 2018-03-22
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2942-7
    ISSN 1476-1645 ; 0002-9637
    ISSN (online) 1476-1645
    ISSN 0002-9637
    DOI 10.4269/ajtmh.17-0310
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  2. Article ; Online: Evaluation of Immunoglobulin G Responses to

    Rogier, Eric / Moss, Delynn M / Chard, Anna N / Trinies, Victoria / Doumbia, Seydou / Freeman, Matthew C / Lammie, Patrick J

    The American journal of tropical medicine and hygiene

    2017  Volume 96, Issue 2, Page(s) 312–318

    Abstract: Malaria serology through assaying for IgG ... ...

    Abstract Malaria serology through assaying for IgG against
    MeSH term(s) Adolescent ; Antigens, Protozoan/immunology ; Child ; Child, Preschool ; Humans ; Immunoglobulin G/immunology ; Malaria, Falciparum/immunology ; Malaria, Vivax/immunology ; Mali ; Microspheres ; Plasmodium falciparum/immunology ; Plasmodium vivax/immunology
    Chemical Substances Antigens, Protozoan ; Immunoglobulin G
    Language English
    Publishing date 2017--08
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2942-7
    ISSN 1476-1645 ; 0002-9637
    ISSN (online) 1476-1645
    ISSN 0002-9637
    DOI 10.4269/ajtmh.16-0476
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  3. Article ; Online: Seroepidemiology of Toxoplasma in a coastal region of Haiti: multiplex bead assay detection of immunoglobulin G antibodies that recognize the SAG2A antigen.

    Priest, J W / Moss, D M / Arnold, B F / Hamlin, K / Jones, C C / Lammie, P J

    Epidemiology and infection

    2015  Volume 143, Issue 3, Page(s) 618–630

    Abstract: Toxoplasma gondii is a globally distributed parasitic protozoan that infects most warm-blooded animals. We incorporated a bead coupled with recombinant SAG2A protein into our Neglected Tropical Disease (NTD) multiplex bead assay (MBA) panel and used it ... ...

    Abstract Toxoplasma gondii is a globally distributed parasitic protozoan that infects most warm-blooded animals. We incorporated a bead coupled with recombinant SAG2A protein into our Neglected Tropical Disease (NTD) multiplex bead assay (MBA) panel and used it to determine Toxoplasma infection rates in two studies in Haiti. In a longitudinal cohort study of children aged 0-11 years, the infection rate varied with age reaching a maximum of 0·131 infections/year in children aged 3 years [95% confidence interval (CI) 0·065-0·204]. The median time to seroconversion was estimated to be 9·7 years (95% CI 7·6-∞). In a cross-sectional, community-wide survey of residents of all ages, we determined an overall seroprevalence of 28·2%. The seroprevalence age curve from the cross-sectional study also suggested that the force of infection varied with age and peaked at 0·057 infections/year (95% CI 0·033-0·080) at age 2·6 years. Integration of the Toxoplasma MBA into NTD surveys may allow for better estimates of the potential burden of congenital toxoplasmosis in underserved regions.
    MeSH term(s) Age Factors ; Animals ; Antibodies, Protozoan/blood ; Antigens, Protozoan ; Child ; Child, Preschool ; Cohort Studies ; Cross-Sectional Studies ; Female ; Haiti/epidemiology ; Humans ; Immunoassay/methods ; Immunoglobulin G/blood ; Infant ; Infant, Newborn ; Longitudinal Studies ; Male ; Microspheres ; Protozoan Proteins ; Seroepidemiologic Studies ; Toxoplasma/immunology ; Toxoplasmosis/epidemiology
    Chemical Substances Antibodies, Protozoan ; Antigens, Protozoan ; Immunoglobulin G ; Protozoan Proteins ; surface antigen P22, Toxoplasma (133134-61-9)
    Language English
    Publishing date 2015-02
    Publishing country England
    Document type Journal Article ; Research Support, N.I.H., Extramural ; Research Support, Non-U.S. Gov't ; Research Support, U.S. Gov't, P.H.S.
    ZDB-ID 632982-2
    ISSN 1469-4409 ; 0950-2688
    ISSN (online) 1469-4409
    ISSN 0950-2688
    DOI 10.1017/S0950268814001216
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  4. Article: Longitudinal analysis of cryptosporidium species-specific immunoglobulin G antibody responses in Peruvian children.

    Priest, Jeffrey W / Bern, Caryn / Xiao, Lihua / Roberts, Jacquelin M / Kwon, James P / Lescano, Andres G / Checkley, William / Cabrera, Lilia / Moss, Delynn M / Arrowood, Michael J / Sterling, Charles R / Gilman, Robert H / Lammie, Patrick J

    Clinical and vaccine immunology : CVI

    2006  Volume 13, Issue 1, Page(s) 123–131

    Abstract: ... to these parasites, we monitored immunoglobulin G (IgG) antibody levels in a cohort of children from Lima, Peru. Two ...

    Abstract Cryptosporidium species are ubiquitous in the environment and are frequently detected in the stools of children who live where sanitation conditions are poor. To better characterize the immune response to these parasites, we monitored immunoglobulin G (IgG) antibody levels in a cohort of children from Lima, Peru. Two new enzyme-linked immunosorbent assays based on the C. parvum (bovine, subtype IIa) Iowa strain 17-kDa and 27-kDa antigens were used to measure IgG antibody levels in longitudinal serum samples. Antibody responses were detected during infections with C. parvum, C. felis, and C. meleagridis and with four different subtypes of C. hominis. We also noted that the magnitude of the antibody response was related to the number of previous infections and that older children generally had higher levels of antibodies to the two C. parvum antigens. Antibody responses were not associated with infections with either Cyclospora sp. or Giardia sp. We believe the antibody assays will be important tools for monitoring the success of future public health interventions.
    MeSH term(s) Age Factors ; Animals ; Antibodies, Protozoan/blood ; Antigens, Protozoan/immunology ; Child ; Cryptosporidiosis/diagnosis ; Cryptosporidiosis/immunology ; Cryptosporidium parvum/classification ; Cryptosporidium parvum/immunology ; Humans ; Immunoglobulin G/blood ; Immunoglobulin G/immunology ; Infant, Newborn ; Longitudinal Studies ; Peru ; Polymerase Chain Reaction ; Species Specificity
    Chemical Substances Antibodies, Protozoan ; Antigens, Protozoan ; Immunoglobulin G
    Language English
    Publishing date 2006-01
    Publishing country United States
    Document type Journal Article ; Research Support, N.I.H., Extramural ; Research Support, Non-U.S. Gov't
    ZDB-ID 2221082-9
    ISSN 1556-679X ; 1556-6811
    ISSN (online) 1556-679X
    ISSN 1556-6811
    DOI 10.1128/CVI.13.1.123-131.2006
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  5. Article: Changes in serum immunoglobulin G levels as a marker for Cryptosporidium sp. infection in Peruvian children.

    Priest, Jeffrey W / Bern, Caryn / Roberts, Jacquelin M / Kwon, James P / Lescano, Andres G / Checkley, William / Cabrera, Lilia / Moss, Delynn M / Arrowood, Michael J / Sterling, Charles R / Gilman, Robert H / Lammie, Patrick J

    Journal of clinical microbiology

    2005  Volume 43, Issue 10, Page(s) 5298–5300

    Abstract: In a retrospective analysis, we assessed the usefulness of two serologic enzyme-linked immunosorbent assays as epidemiologic tools for the detection of cryptosporidiosis episodes in children from a Peruvian community. The incidence rate determined by the ...

    Abstract In a retrospective analysis, we assessed the usefulness of two serologic enzyme-linked immunosorbent assays as epidemiologic tools for the detection of cryptosporidiosis episodes in children from a Peruvian community. The incidence rate determined by the serologic assay was higher than the rate determined by stool microscopy (0.77 versus 0.41 infection/child-year of surveillance).
    MeSH term(s) Animals ; Antibodies, Protozoan/blood ; Biomarkers/blood ; Child ; Cryptosporidiosis/diagnosis ; Cryptosporidiosis/epidemiology ; Cryptosporidiosis/immunology ; Cryptosporidium/immunology ; Cryptosporidium/isolation & purification ; Enzyme-Linked Immunosorbent Assay ; Feces/parasitology ; Humans ; Immunoglobulin G/blood ; Incidence ; Peru ; Retrospective Studies
    Chemical Substances Antibodies, Protozoan ; Biomarkers ; Immunoglobulin G
    Language English
    Publishing date 2005-10
    Publishing country United States
    Document type Evaluation Studies ; Journal Article ; Research Support, N.I.H., Extramural ; Research Support, Non-U.S. Gov't ; Research Support, U.S. Gov't, P.H.S.
    ZDB-ID 390499-4
    ISSN 1098-660X ; 0095-1137
    ISSN (online) 1098-660X
    ISSN 0095-1137
    DOI 10.1128/JCM.43.10.5298-5300.2005
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  6. Article: Enzyme immunoassay of Cryptosporidium-specific immunoglobulin G antibodies to assess longitudinal infection trends in six communities in British Columbia, Canada.

    Ong, Corinne S / Li, Anna S / Priest, Jeffrey W / Copes, Ray / Khan, Mohamad / Fyfe, Murray W / Marion, Stephen A / Roberts, Jacquelin M / Lammie, Patrick J / Isaac-Renton, Judith L

    The American journal of tropical medicine and hygiene

    2005  Volume 73, Issue 2, Page(s) 288–295

    Abstract: A newly developed enzyme-linked immunosorbent assay (ELISA) that detects immunoglobulin G ...

    Abstract A newly developed enzyme-linked immunosorbent assay (ELISA) that detects immunoglobulin G antibodies to the 27-kDa Cryptosporidium parvum sporozoite surface antigen was used to test 4,097 sera collected from pregnant women in 6 communities in British Columbia, Canada, between January 1996, and December 1997. Waterborne outbreaks of cryptosporidiosis occurred in two of the study communities during the period of follow-up, and ELISA seropositivity was high in all six communities during the study period (77% positive to 92% positive). In the community with the largest outbreak, levels of antibody to the 27-kDa antigen increased rapidly and then decayed to background levels within 3-4 months of the peak of the epidemic curve. Trends in serologic reactivity were complex in all communities, and increased antibody levels not related temporally to known waterborne outbreaks were also observed. Serological assays may provide more accurate information regarding community levels of Cryptosporidium infection.
    MeSH term(s) Adolescent ; Adult ; Animals ; Antibodies, Protozoan/blood ; Antibody Specificity ; Antigens, Protozoan/immunology ; British Columbia/epidemiology ; Cryptosporidiosis/epidemiology ; Cryptosporidiosis/immunology ; Cryptosporidiosis/parasitology ; Cryptosporidium/immunology ; Cryptosporidium parvum/growth & development ; Cryptosporidium parvum/immunology ; Disease Outbreaks ; Female ; Humans ; Immunoenzyme Techniques ; Immunoglobulin G/blood ; Longitudinal Studies ; Middle Aged ; Population Surveillance ; Pregnancy ; Pregnancy Complications, Parasitic/epidemiology ; Pregnancy Complications, Parasitic/immunology ; Pregnancy Complications, Parasitic/parasitology ; Prevalence ; Sporozoites/immunology
    Chemical Substances Antibodies, Protozoan ; Antigens, Protozoan ; Immunoglobulin G
    Language English
    Publishing date 2005-08
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2942-7
    ISSN 1476-1645 ; 0002-9637
    ISSN (online) 1476-1645
    ISSN 0002-9637
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  7. Article ; Online: Meningioma with rhabdoid features combined with meningioangiomatosis in infancy: a novel combination.

    Galloway, Luke / Zilani, Gulam / Lammie, Alistair / Leach, Paul

    Child's nervous system : ChNS : official journal of the International Society for Pediatric Neurosurgery

    2020  Volume 36, Issue 6, Page(s) 1311–1314

    Abstract: Meningioangiomatosis is a rare histologically distinct abnormality that is occasionally associated with intracranial meningioma. The rhabdoid variant of meningioma is also uncommon and is classified as a World Health Organization Grade III tumour. We ... ...

    Abstract Meningioangiomatosis is a rare histologically distinct abnormality that is occasionally associated with intracranial meningioma. The rhabdoid variant of meningioma is also uncommon and is classified as a World Health Organization Grade III tumour. We report a case of meningioangiomatosis in conjunction with a meningioma with prominent rhabdoid features, in an infant male who underwent complete surgical resection of the lesion. The patient has been followed up for 6 years with no disease recurrence. To our knowledge, this is the first report in the literature describing meningioangiomatosis combined with a meningioma with rhabdoid features.
    MeSH term(s) Central Nervous System Vascular Malformations ; Humans ; Infant ; Male ; Meningeal Neoplasms/complications ; Meningeal Neoplasms/diagnostic imaging ; Meningeal Neoplasms/surgery ; Meningioma/complications ; Meningioma/diagnostic imaging ; Meningioma/surgery ; Neoplasm Recurrence, Local ; Rhabdoid Tumor/complications ; Rhabdoid Tumor/diagnostic imaging ; Rhabdoid Tumor/surgery
    Language English
    Publishing date 2020-01-02
    Publishing country Germany
    Document type Case Reports ; Journal Article
    ZDB-ID 605988-0
    ISSN 1433-0350 ; 0302-2803 ; 0256-7040
    ISSN (online) 1433-0350
    ISSN 0302-2803 ; 0256-7040
    DOI 10.1007/s00381-019-04486-5
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  8. Article: Enzyme immunoassay detection of antigen-specific immunoglobulin g antibodies in longitudinal serum samples from patients with cryptosporidiosis.

    Priest, J W / Li, A / Khan, M / Arrowood, M J / Lammie, P J / Ong, C S / Roberts, J M / Isaac-Renton, J

    Clinical and diagnostic laboratory immunology

    2001  Volume 8, Issue 2, Page(s) 415–423

    Abstract: ... of mammalian hosts, including humans. Characteristic serum immunoglobulin G (IgG) antibody responses ...

    Abstract Cryptosporidium parvum is a protozoan parasite that causes diarrheal illness in a wide range of mammalian hosts, including humans. Characteristic serum immunoglobulin G (IgG) antibody responses to antigens in the 27- and 17-kDa size ranges have been shown to develop after infection, and several enzyme-linked immunosorbent assay (ELISA) and Western blot assay formats have been used to measure these IgG levels in human serum. Using a collection of serial samples from laboratory-confirmed cryptosporidiosis patients, we compared the results obtained by using two new ELISAs with those obtained with two different Western blot assays. When assayed with the large-format Western blot, 97% of the 67 patients had a demonstrable antibody response on at least one occasion. The Cp23 ELISA correctly identified 93% of the samples that had a 27-kDa response by Western blot and 100% of the negative samples. The Triton antigen ELISA detected 77% of the samples that had a 17-kDa response by Western blot and 88% of the negative samples. The sensitivity of the Triton antigen assay was higher for samples collected between 16 and 92 days after the onset of symptoms (96%). The minigel-format Western blot did not compare favorably with the large-format blot for the detection of antibodies to the 27-kDa antigen (71% sensitivity). A half-life of about 12 weeks was estimated for antibodies to both the 27- and 17-kDa antigens. We believe the Cp23 and Triton antigen ELISAs will be useful in epidemiologic studies of the prevalence of Cryptosporidium infection in the population.
    MeSH term(s) Adult ; Animals ; Antigens, Protozoan/analysis ; Antigens, Protozoan/immunology ; Blotting, Western ; Cryptosporidiosis/diagnosis ; Cryptosporidiosis/epidemiology ; Cryptosporidium parvum/immunology ; Cryptosporidium parvum/isolation & purification ; Enzyme-Linked Immunosorbent Assay/methods ; Humans ; Immunoglobulin G/blood ; Longitudinal Studies ; Sensitivity and Specificity ; Seroepidemiologic Studies
    Chemical Substances Antigens, Protozoan ; Immunoglobulin G
    Language English
    Publishing date 2001-03
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 1193675-7
    ISSN 1098-6588 ; 1071-412X
    ISSN (online) 1098-6588
    ISSN 1071-412X
    DOI 10.1128/CDLI.8.2.415-423.2001
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  9. Article ; Online: Malignant vestibular schwannoma with intracerebral metastasis.

    Salehi-Reyhani, Sayedeh Ameneh / Zilani, Gulam / Lammie, Alistair / Hayhurst, Caroline

    British journal of neurosurgery

    2021  Volume 37, Issue 5, Page(s) 1354–1357

    Abstract: Background: Malignant change in vestibular schwannoma is rare and intracranial metastatic deposits have not been reported.: Clinical presentation: We report the case of a 64 year old woman with a benign vestibular schwannoma who underwent ... ...

    Abstract Background: Malignant change in vestibular schwannoma is rare and intracranial metastatic deposits have not been reported.
    Clinical presentation: We report the case of a 64 year old woman with a benign vestibular schwannoma who underwent translabyrinthine excision in 1996 and Gamma Knife
    Conclusion: We report a rare case of a vestibular schwannoma metastasizing with histological confirmation. It also reminds us of malignant conversion of a benign vestibular schwannoma following GKRS and subsequent aggressive behaviour, with poor prognosis.
    MeSH term(s) Female ; Humans ; Middle Aged ; Neuroma, Acoustic/surgery ; Neuroma, Acoustic/pathology ; Radiosurgery
    Language English
    Publishing date 2021-03-09
    Publishing country England
    Document type Case Reports ; Journal Article
    ZDB-ID 639029-8
    ISSN 1360-046X ; 0268-8697
    ISSN (online) 1360-046X
    ISSN 0268-8697
    DOI 10.1080/02688697.2021.1884650
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

  10. Article: Detection by enzyme immunoassay of serum immunoglobulin G antibodies that recognize specific Cryptosporidium parvum antigens.

    Priest, J W / Kwon, J P / Moss, D M / Roberts, J M / Arrowood, M J / Dworkin, M S / Juranek, D D / Lammie, P J

    Journal of clinical microbiology

    1999  Volume 37, Issue 5, Page(s) 1385–1392

    Abstract: Human infection with Cryptosporidium parvum usually elicits characteristic immunoglobulin G (IgG ...

    Abstract Human infection with Cryptosporidium parvum usually elicits characteristic immunoglobulin G (IgG), IgA, and IgM antibody responses against two sporozoite surface antigens with apparent molecular masses of approximately 27 and 17 kDa. We have determined that these two antigens are actually complex families of related antigens. We have developed two new enzyme-linked immunosorbent assays (ELISAs) for the detection and quantitation of serum IgG antibodies against both antigens. The assays utilize a recombinant form of the 27-kDa antigen and a partially purified native fraction isolated from sonicated whole oocysts that contains 17-kDa antigen. An immunoblot assay previously developed in our laboratory served as the reference, or "gold standard," seroassay for the assessment of the new ELISAs. Positive responses with the recombinant-27-kDa-antigen ELISA were correlated with the immunoblot results for the 27-kDa antigen, with a sensitivity and specificity of 90 and 92%, respectively. Similarly, positive responses with the partially purified native-17-kDa-antigen ELISA correlated with the immunoblot results for the 17-kDa antigen, with a sensitivity and specificity of 90 and 94%, respectively. For both ELISAs the median IgG antibody levels for serum sets collected during outbreaks of waterborne C. parvum infection were at least 2.5-fold higher than the levels determined for a nonoutbreak set. Using the immunoblot as the "gold standard," the new ELISAs were more specific and, in the case of the 27-kDa-antigen ELISA, more sensitive than the crude oocyst antigen ELISA currently in use. These assays will be useful in future epidemiologic studies.
    MeSH term(s) Animals ; Antibodies, Protozoan/blood ; Antigens, Protozoan/immunology ; Antigens, Protozoan/isolation & purification ; Blotting, Western ; Cryptosporidium parvum/immunology ; Enzyme-Linked Immunosorbent Assay ; Humans ; Immunoglobulin G/blood ; Molecular Weight ; Recombinant Proteins/immunology ; Sensitivity and Specificity
    Chemical Substances Antibodies, Protozoan ; Antigens, Protozoan ; Immunoglobulin G ; Recombinant Proteins
    Language English
    Publishing date 1999-05
    Publishing country United States
    Document type Journal Article
    ZDB-ID 390499-4
    ISSN 1098-660X ; 0095-1137
    ISSN (online) 1098-660X
    ISSN 0095-1137
    DOI 10.1128/JCM.37.5.1385-1392.1999
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

To top