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toxoplasmosis diagnosis

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https://www.readbyqxmd.com/read/29203146/toward-detection-of-toxoplasmosis-from-urine-in-mice-using-hydro-gel-nanoparticles-concentration-and-parallel-reaction-monitoring-mass-spectrometry
#1
Hannah E Steinberg, Paul Russo, Noelia Angulo, Raúl Ynocente, Cristina Montoya, Andrea Diestra, Cusi Ferradas, Francesca Schiaffino, Edgar Florentini, Juan Jimenez, Maritza Calderón, Vern B Carruthers, Robert H Gilman, Lance Liotta, Alessandra Luchini
Diagnosis of clinical toxoplasmosis remains a challenge, thus limiting the availability of human clinical samples. Though murine models are an approximation of human response, their definitive infection status and tissue availability makes them critical to the diagnostic development process. Hydrogel mesh nanoparticles were used to concentrate antigen to detectable levels for mass spectrometry. Seven T. gondii isolates were used to develop a panel of potential peptide sequences for detection by parallel reaction monitoring (PRM) mass spectrometry...
December 1, 2017: Nanomedicine: Nanotechnology, Biology, and Medicine
https://www.readbyqxmd.com/read/29201121/assessment-of-toxoplasma-seropositivity-in-children-suffering-from-anxiety-disorders
#2
Shahla Afsharpaiman, Mohammad Hossein Khosravi, Mojtaba Mahmoodinejad, Shahnaz Shirbazoo, Susan Amirsalari, Mohammad Torkaman, Shokoofeh Radfar
Objective: This study aimed to assess the seroprevalence of Toxoplasma gondii in children with anxiety disorders. Materials & Methods: This cross-sectional study was conducted between Sep 2012 and May 2013 in Pediatrics Clinic of Baqiyatallah Hospital, Tehran, Iran. Children were assessed clinically. Diagnosis of patients with anxiety disorders was based on DSM-4 system, performed by child psychiatrist. Then their anti-Toxoplasma antibodies were measured. A questionnaire was verbally administered to all individuals' parents including demographic information and questions about life style, family history, medical history, economic situation, residence, nutritional patterns and contact with animals...
2017: Iranian Journal of Child Neurology
https://www.readbyqxmd.com/read/29184607/-unilateral-macular-coloboma-about-a-case
#3
Meriem El Bahloul, Fouad Chraïbi, Marrakchi Mohammed, Meriem Abdellaoui, Idriss Benatiya
Macular coloboma is a congenital condition characterized by failure of closure of the fetal intraocular fissure which may have a hereditary origin. Clinically, it is characterized by decreased visual acuity with macular excavated lesion characterized by missing or rudimentary retinal tissue and scleral ectasia. Macular OCT strongly supports the diagnosis and electrophysiology examination, if requested, is altered. Differential diagnosis includes pathologies causing atrophic and excavated macular lesion, in particular congenital toxoplasmosis...
2017: Pan African Medical Journal
https://www.readbyqxmd.com/read/29178248/no-indication-of-increased-infection-rates-using-low-dose-alemtuzumab-instead-of-anti-thymocyte-globulin-as-graft-versus-host-disease-prophylaxis-before-allogeneic-stem-cell-transplantation
#4
Thomas Neumann, Laila Schneidewind, Thomas Thiele, Daniel Pink, Meike Schulze, Christian Schmidt, William Krüger
BACKGROUND: Alemtuzumab as part of the conditioning protocol is effective in reducing graft-versus-host disease (GvHD), but may be associated with increased infection rates, especially when using high doses (ie, 100 mg). METHODS: We performed a retrospective, single-centre, case-control study analysing the rates of neutropenic fever, cytomegalovirus (CMV) reactivation, Epstein-Barr virus (EBV) reactivation, clinical manifest toxoplasmosis, and clinical manifest human herpesvirus-6 (HHV6) infection using low-dose alemtuzumab in comparison with anti-thymocyte globulin (ATG) as GvHD prophylaxis before allogeneic stem cell transplantation...
November 27, 2017: Transplant Infectious Disease: An Official Journal of the Transplantation Society
https://www.readbyqxmd.com/read/29177397/-not-everything-is-zika-congenital-toxoplasmosis-still-prevalent-in-colombia
#5
Jorge L Alvarado-Socarras, Keyla Meneses-Silvera, Andrea Carolina Zarate-Vergara, Carlos Guerrero-Gomez, Alfonso J Rodriguez-Morales
Congenital toxoplasmosis continues to be a public health threat. Even existing guidelines, publicly known, its implementation and lack of appropriate interpretation of serological tests in pregnancy is often observed. This leds to failure in opportunities for positive and known interventions to decrease the fetal risk due to Toxoplasma gondii infection. We reported herein a case series, with variable neurological and systemic compromise (respiratory distress, hepatosplenomegaly, enterocolitis, brain calcifications, thrombocytopenia, ascites, shock), even fatal, calling for awareness about the fact that despite the Zika epidemics in 2015-2016 in Brazil, Colombia and other countries, precisely toxoplasmosis, is a differential diagnosis still prevalent in these territories, that can leds to severe consequences, with neurological disability and risk of ocular damage, even lately...
April 2017: Revista Peruana de Medicina Experimental y Salud Pública
https://www.readbyqxmd.com/read/29162597/prevalence-and-clinical-profile-of-microcephaly-in-south-america-pre-zika-2005-14-prevalence-and-case-control-study
#6
Iêda M Orioli, Helen Dolk, Jorge S Lopez-Camelo, Daniel Mattos, Fernando A Poletta, Maria G Dutra, Flavia M Carvalho, Eduardo E Castilla
Objective To describe the prevalence and clinical spectrum of microcephaly in South America for the period 2005-14, before the start of the Zika epidemic in 2015, as a baseline for future surveillance as the Zika epidemic spreads and as other infectious causes may emerge in future.Design Prevalence and case-control study.Data sources ECLAMC (Latin American Collaborative Study of Congenital Malformations) database derived from 107 hospitals in 10 South American countries, 2005 to 2014. Data on microcephaly cases, four non-malformed controls per case, and all hospital births (all births for hospital based prevalence, resident within municipality for population based prevalence)...
November 21, 2017: BMJ: British Medical Journal
https://www.readbyqxmd.com/read/29156547/knowledge-and-practices-of-toxoplasmosis-among-clinical-laboratory-professionals-a-cross-sectional-study-in-durango-mexico
#7
Cosme Alvarado-Esquivel, Luis Francisco Sánchez-Anguiano, Luis Omar Berumen-Segovia, Jesús Hernández-Tinoco, Yazmin Del Rosario Rico-Almochantaf, Alfredo Cisneros-Camacho, Jorge Arturo Cisneros-Martínez
Background: The aim of this study was to determine the level of knowledge and practices about toxoplasmosis in a sample of clinical laboratory professionals in Mexico. Methods: 192 clinical laboratory professionals were surveyed. They were asked about (1) Toxoplasma gondii; (2) clinical manifestations, diagnosis, treatment, and epidemiology of toxoplasmosis; and (3) their practices with respect to toxoplasmosis. Results: The range of animals infected by T. gondii was known by 44.8% of participants. Clinical aspects of toxoplasmosis were known by up to 44...
November 18, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/29156082/an-unexpected-but-underestimated-case-of-disseminated-toxoplasmosis
#8
Tiffany Chan, Patrick T Shannon, Michael E Detsky
Toxoplasma gondii is a ubiquitous intracellular parasite that can cause disseminated infection following reactivation in immunocompromised hosts. We describe a 58-year-old man who died of refractory shock because of disseminated toxoplasmosis. The diagnosis was only made post-mortem on autopsy. We discuss the importance of considering toxoplasmosis on the differential diagnosis in high-risk patients, and review the role of screening and chemoprophylaxis in preventing infection. This article is protected by copyright...
November 20, 2017: Transplant Infectious Disease: An Official Journal of the Transplantation Society
https://www.readbyqxmd.com/read/29155634/how-does-imaging-of-congenital-zika-compare-with-imaging-of-other-torch-infections
#9
REVIEW
Deborah Levine, Jacques C Jani, Ilse Castro-Aragon, Mieke Cannie
The acronym TORCH is used to refer to congenital infections, such as toxoplasmosis, other infections (such as syphillis, varicella-zoster, and parvovirus B19), cytomegalovirus, and herpes simplex virus. The classic findings in patients with TORCH infections include rash in the mother during pregnancy and ocular findings in the newborn. Zika virus has emerged as an important worldwide congenital infection. It fits well with other congenital TORCH infections since there is a rash in the mother and there are commonly ocular abnormalities in the newborn...
December 2017: Radiology
https://www.readbyqxmd.com/read/29153066/-age-related-prevalence-of-toxoplasmosis-among-pregnant-women-in-hatay-estimation-depending-on-model
#10
Meryem Çetin, Şirin Çetin
Toxoplasmosis, caused by the obligate intracellular protozoan Toxoplasma gondii, is a common parasitic infection affecting approximately one-third of the world population. T.gondii infections are usually acquired by ingesting raw or insufficiently cooked meat and from unwashed fruits and vegetables contaminated with soil or water with cat feces. Primary infection acquired during pregnancy can cause severe congenital abnormalities in the fetus such as neurologic and ocular malformations, abortion, or stillbirth according to the degree of infection...
October 2017: Mikrobiyoloji Bülteni
https://www.readbyqxmd.com/read/29141790/cerebral-toxoplasmosis-in-an-ms-patient-receiving-fingolimod
#11
Alejandro Enriquez-Marulanda, Jaime Valderrama-Chaparro, Laura Parrado, Juan Diego Vélez, Ana Maria Granados, Jorge Luis Orozco, Jairo Quiñones
Multiple Sclerosis (MS) is an autoimmune disease in which lymphocytes target putative myelin antigens in the CNS, causing inflammation and neurodegeneration. Fingolimod (FTY720) is an immunosuppressive drug used as a second line therapy for relapsing forms of MS due to its safety profile and good response to treatment. Despite its safety, there are still concerns about the possibility of Fingolimod being linked to the development of opportunistic infections like disseminated varicella zoster infections and herpes simplex encephalitis...
November 2017: Multiple Sclerosis and related Disorders
https://www.readbyqxmd.com/read/29120678/patterns-of-uveitis-at-two-university-based-referral-centres-in-cape-town-south-africa
#12
Wilna Rautenbach, Jonel Steffen, Derrick Smit, Karin Lecuona, Tonya Esterhuizen
PURPOSE: To analyze the pattern of uveitis at two tertiary hospitals in South Africa which has a high prevalence of HIV, TB and syphilis. METHODS: Data of 198 patients were obtained retrospectively between August 2014 and August 2016, including patient demographics, clinical examination, special investigations and final diagnosis. RESULTS: Infectious uveitis was the most common aetiological category (47%), followed by idiopathic (34.8%) and non-infectious (18...
November 9, 2017: Ocular Immunology and Inflammation
https://www.readbyqxmd.com/read/29099497/tuberculosis-and-other-causes-of-uveitis-in-indonesia
#13
R La Distia Nora, R Sitompul, M Bakker, M Susiyanti, L Edwar, S Sjamsoe, G Singh, M P van Hagen, A Rothova
PurposeThe purpose of this study is to assess the causes of uveitis in Indonesia and determine the importance of tuberculosis (TB) as a cause of uveitis.Patients and methodsProspective cohort study examining 146 consecutive new human immunodeficiency virus-negative patients with active uveitis between June 2014 and May 2015. We assessed the anatomic locations and specific causes of uveitis, as well as associations with infectious and non-infectious systemic diseases. We determined the prevalence of positive QuantiFERON Tb Gold test (QFT) results in Indonesian patients with uveitis and calculated the number of patients with active systemic TB...
November 3, 2017: Eye
https://www.readbyqxmd.com/read/29083984/review-of-epidemiology-of-uveitis-in-asia-pattern-of-uveitis-in-a-tertiary-hospital-in-the-philippines
#14
Jessica Marie Abaño, Pia Regina Galvante, Paul Siopongco, Kunny Dans, Juan Lopez
PURPOSE: To describe the pattern of uveitis in patients seen at the uveitis clinic of the East Avenue Medical Center, Philippines. METHODS: Clinical records of patients seen from January 2010 to June 2015 were reviewed. Data collected included demographics, clinical presentation, associated systemic disease, work-up, and diagnosis. RESULTS: A total of 595 records were reviewed. The mean age at presentation was 38 ± 18.4 years. The majority of the cases were unilateral and chronic...
2017: Ocular Immunology and Inflammation
https://www.readbyqxmd.com/read/29077180/large-choroidal-excavation-in-a-patient-with-rubella-retinopathy
#15
Maurizio Battaglia Parodi, Francesco Romano, Marco Montagna, Francesco Bandello
PURPOSE: To describe a case of rubella retinopathy complicated by bilateral choroidal neovascularization (CNV) and late development of large choroidal excavation (LCE). METHODS: A 19-year-old woman with a diagnosis of rubella retinopathy underwent her annual ophthalmologic examination, including visual acuity testing and slit-lamp biomicroscopy with dilated fundus examination. Color fundus photography, spectral-domain optical coherence tomography (SD-OCT) scans, and optical coherence tomography angiography were acquired to complete the investigation of her ocular condition...
October 17, 2017: European Journal of Ophthalmology
https://www.readbyqxmd.com/read/28968510/molecular-diagnosis-of-symptomatic-toxoplasmosis-a-9-year-retrospective-and-prospective-study-in-a-referral-laboratory-in-s%C3%A3-o-paulo-brazil
#16
Lilian Muniz Camilo, Vera Lucia Pereira-Chioccola, Ricardo Gava, Cristina da Silva Meira-Strejevitch, Jose Ernesto Vidal, Cinara Cássia Brandão de Mattos, Fábio Batista Frederico, Luiz Carlos De Mattos, Lígia Cosentino Junqueira Franco Spegiorin
Symptomatic forms of toxoplasmosis are a serious public health problem and occur in around 10-20% of the infected people. Aiming to improve the molecular diagnosis of symptomatic toxoplasmosis in Brazilian patients, this study evaluated the performance of real time PCR testing two primer sets (B1 and REP-529) in detecting Toxoplasma gondii DNA. The methodology was assayed in 807 clinical samples with known clinical diagnosis, ELISA, and conventional PCR results in a 9-year period. All samples were from patients with clinical suspicion of several features of toxoplasmosis...
September 29, 2017: Brazilian Journal of Infectious Diseases
https://www.readbyqxmd.com/read/28964770/advantages-of-bioconjugated-silica-coated-nanoparticles-as-an-innovative-diagnosis-for-human-toxoplasmosis
#17
Ibrahim Aly, Eman E Taher, Gehan El Nain, Hoda El Sayed, Faten A Mohammed, Rabab S Hamad, Elsayed M Bayoumy
Nanotechnology is a promising arena for generating new applications in Medicine. To successfully functionalised nanoparticles for a given biomedical application, a wide range of chemical, physical and biological factors have to be taken into account. Silica-coated nanoparticles, (SiO2NP) exhibit substantial diagnostic activity owing to their large surface to volume ratios and crystallographic surface structure. This work aimed to evaluate the advantage of bioconjugation of SiO2NP with PAb against Toxoplasma lyzate antigen (TLA) as an innovative diagnostic method for human toxoplasmosis...
September 28, 2017: Acta Tropica
https://www.readbyqxmd.com/read/28920810/newly-described-toxoplasma-gondii-strain-causes-high-mortality-in-red-necked-wallabies-macropus-rufogriseus-in-a-zoo
#18
Amanda Guthrie, Leah Rooker, Rommel Tan, Richard Gerhold, Karen Trainor, Tiantian Jiang, Chunlei Su
This manuscript describes an outbreak of fatal toxoplasmosis in wallabies. Ten adult red necked wallabies (Macropus rufogriseus) were imported from New Zealand to the Virginia Zoo. Agglutination testing upon admission into quarantine showed all animals to be negative for antibodies to Toxoplasma gondii. Nine of these wallabies died from acute toxoplasmosis within 59-565 (average 224) days after being moved onto exhibit. Clinical signs included lethargy, diarrhea, tachypnea, and ataxia that progressed rapidly; death without premonitory signs occurred in one case...
September 2017: Journal of Zoo and Wildlife Medicine: Official Publication of the American Association of Zoo Veterinarians
https://www.readbyqxmd.com/read/28882612/proposed-panel-of-diagnostic-tools-for-accurate-temporal-classification-of-symptomatic-t-gondii-infection
#19
Geisa Baptista Barros, Elenice Moreira Lemos, Priscila Pinto E Silva-Dos-Santos, Reynaldo Dietze, Eliana Zandonade, José Roberto Mineo, Deise Aparecida de Oliveira Silva, Ana Cláudia Marquez Pajuaba, Matheus de Souza Gomes, Laurence Rodrigues do Amaral, Jordana Grazziela Coelho-Dos-Reis, Olindo Assis Martins-Filho, José Carlos Serufo
Serological tests available for the diagnosis of acute Toxoplasma gondii infection have limitations in establishing the temporal diagnosis of acute toxoplasmosis. The present analytical-descriptive investigation comprises of a prospective longitudinal cohort study to search for accurate biomarkers to distinguish acute, early and late convalescent T. gondii infection. Classic methods (immunofluorescence-IFA along with Enzyme-linked immunosorbent-ELISA and fluorescent-ELFA assays) for IgM, IgA, IgG and IgG avidity were employed in parallel with flow cytometry-based anti-fixed T...
September 4, 2017: Journal of Immunological Methods
https://www.readbyqxmd.com/read/28861733/patterns-of-uveitis-in-children-at-the-apex-institute-for-eye-care-in-india-analysis-and-review-of-literature
#20
Brijesh Takkar, Pradeep Venkatesh, Nripen Gaur, Sat Pal Garg, Rajpal Vohra, Supriyo Ghose
AIM: To study patterns of uveitis in Indian children and compare with data sets published earlier in the literature. METHODS: Consecutive patients below 16 years of age presenting to the uvea clinic of a tertiary eye care center were included prospectively through the period of July 2009-August 2013. Children with retinal vasculitis, exogenous endophthalmitis and masquerade syndromes were excluded from analysis. Uveitis was classified as per the nomenclature system adopted by the International Uveitis Study Group...
August 31, 2017: International Ophthalmology
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