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Toxoplasmosis congenital

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https://www.readbyqxmd.com/read/28042412/molecular-detection-and-genotypic-characterization-of-toxoplasma-gondii-in-paraffin-embedded-fetoplacental-tissues-of-women-with-recurrent-spontaneous-abortion
#1
Amir Abdoli, Abdolhossein Dalimi, Haleh Soltanghoraee, Fatemeh Ghaffarifar
BACKGROUND: Congenital toxoplasmosis is an important cause of spontaneous abortion worldwide. However, there is limited information on detection and genotypic characterization of Toxoplasma gondii (T. gondii) in women with recurrent spontaneous abortion (RSA). The aim of this study is the molecular detection and genotypic characterization of T. gondii in formalin-fixed, paraffin-embedded fetoplacental tissues (FFPTs) of women with RSA that have referred to the Avicenna Research Institute in Tehran, Iran...
January 2017: International Journal of Fertility & Sterility
https://www.readbyqxmd.com/read/28030925/comparison-of-the-efficiency-of-two-commercial-kits-elfa-and-western-blot-in-estimating-the-phase-of-toxoplasma-gondii-infection-in-pregnant-women
#2
COMPARATIVE STUDY
Jacek Sroka, Angelina Wójcik-Fatla, Violetta Zając, Anna Sawczyn, Ewa Cisak, Jacek Karamon, Jacek Dutkiewicz, Iwona Bojar
Sera of 89 pregnant women were selected according to the results of ELFA IgM, IgG and avidity IgG, and tested with commercial tests IgM, IgG and avidity IgG Western Blot (WB) to compare the efficacy of both techniques in determining the phase of T. gondii infection. In total, 81 of 89 tested sera (91.0%) were classified as positive, both in the ELFA and WB tests for the presence of anti-Toxoplasma antibodies of class IgG, indicating a past infection, while the prevalence of anti-Toxoplasma positive reactions associated with the antibodies of class IgM indicating a recent infection was much lower - 31...
23, 2016: Annals of Agricultural and Environmental Medicine: AAEM
https://www.readbyqxmd.com/read/28028000/phylogeography-of-toxoplasma-gondii-points-to-a-south-american-origin
#3
Emilie Bertranpetit, Thibaut Jombart, Emmanuel Paradis, Hilda Pena, Jitender Dubey, Chunlei Su, Aurélien Mercier, Sébastien Devillard, Daniel Ajzenberg
Toxoplasma gondii, a protozoan found ubiquitously in mammals and birds, is the etiologic agent of toxoplasmosis, a disease causing substantial public health burden worldwide, including about 200,000 new cases of congenital toxoplasmosis each year. Clinical severity has been shown to vary across geographical regions, with South America exhibiting the highest burden. Unfortunately, the drivers of these heterogeneities are still poorly understood, and the geographical origin and historical spread of the pathogen worldwide are currently uncertain...
December 24, 2016: Infection, Genetics and Evolution
https://www.readbyqxmd.com/read/27988201/early-detection-of-toxoplasma-gondii-infection-by-using-a-interferon-gamma-release-assay-a-review
#4
REVIEW
Shima Mahmoudi, Setareh Mamishi, Xun Suo, Hossein Keshavarz
Antibody-based serological tests are currently the most common diagnostic methods for detection of Toxoplasma gondii; however, these tests bear several limitations. Recently, Interferon-gamma release assay (IGRA), a T-cell-based test, was introduced as an in vitro test for detection of T. gondii infection. Few studies have investigated the potential role of cell immunity in diagnosis of toxoplasmosis. IGRA accurately distinguished infected from uninfected individuals, showing strong lymphocyte activation after in vitro stimulation with T...
December 14, 2016: Experimental Parasitology
https://www.readbyqxmd.com/read/27956093/late-diagnosis-of-congenital-toxoplasmosis-based-on-serological-follow-up-a-case-report
#5
Céline Dard, Cathy Chemla, Hélène Fricker-Hidalgo, Marie-Pierre Brenier-Pinchart, Marie Baret, Alexandre Mzabi, Isabelle Villena, Hervé Pelloux
Toxoplasma gondii is a protozoan parasite infecting up to one third of the world's population. T. gondii infection is usually benign in immunocompetent patients but can be life-threatening when congenitally transmitted. Congenital toxoplasmosis presentation ranges from severe central nervous system and ocular features, to a well appearing newborn with onset of complications late in childhood. The diagnosis of subclinical form remains important since early treatment reduces later complications such as chorioretinitis...
December 9, 2016: Parasitology International
https://www.readbyqxmd.com/read/27907933/evaluation-of-pregnant-and-postpartum-women-s-knowledge-about-toxoplasmosis-in-rio-grande-rs-brazil
#6
Lis Maurente Lehmann, Paula Costa Santos, Carlos James Scaini
Introduction Toxoplasmosis a parasitic zoonosis of global distribution, responsible for disorders during gestation can cause fetal death or congenital anomalies. Objective To evaluate the knowledge of toxoplasmosis among pregnant and postpartum women treated at the University Hospital of the city of Rio Grande, Rio Grande do Sul, Brazil. Methods This was a cross-sectional study of 100 pregnant and postpartum women at the University Hospital. Participants answered a self-administered questionnaire and gave consent for data relating to serological examinations to be abstracted from their medical records...
November 2016: Revista Brasileira de Ginecologia e Obstetrícia
https://www.readbyqxmd.com/read/27876900/the-common-zoonotic-protozoal-diseases-causing-abortion
#7
REVIEW
Raafat Mohamed Shaapan
Toxoplasmosis, neosporosis, sarcosporidiosis (sarcocystosis) and trypanosomiasis are the common zoonotic protozoal diseases causing abortion which caused by single-celled protozoan parasites; Toxoplasma gondii, Neospora caninum, Sarcocystis spp and Trypanosoma evansi, respectively. Toxoplasmosis is generally considered the most important disease that causing abortion of both pregnant women and different female animals throughout the world, about third of human being population had antibodies against T. gondii...
December 2016: Journal of Parasitic Diseases: Official Organ of the Indian Society for Parasitology
https://www.readbyqxmd.com/read/27861692/-gestational-and-congenital-toxoplasmosis-a-practical-approach-to-disease-notification
#8
Jaqueline Dario Capobiango, Regina Mitsuka Breganó, Fabiana Maria Ruiz Lopes Mori, Italmar Teodorico Navarro, Josemari Sawczuk de Arruda Campos, Linda Tsuiko Tatakihara, Thalita Bento Talizin, Monica Dos Santos, Tayná Rolim Galvão Pereira, Simone Garani Narciso, Edna Maria Vissoci Reiche
OBJECTIVE: to demonstrate the experience of implanting toxoplasmosis notification during pregnancy and congenital toxoplasmosis in a Sentinel Unit (SU) and describe reported cases. METHODS: this was a descriptive study of the implantation of a notification protocol using a specific notification form for suspected cases of toxoplasmosis in pregnant women and congenital toxoplasmosis in a reference center in Paraná State, Brazil, from August 2013 to August 2014. RESULTS: all 64 suspected cases were notified and case investigation was completed by the SU Epidemiology Sector; 63 received prenatal care and 51 received treatment during pregnancy; 7 of the children being clinically monitored had confirmed diagnosis of congenital toxoplasmosis...
January 2016: Epidemiologia e Servicos de Saude: Revista do Sistema Unico de Saude do Brasil
https://www.readbyqxmd.com/read/27794096/high-frequency-detection-of-toxoplasma-gondii-dna-in-human-neonatal-tissue-from-libya
#9
Sameena Z H Haq, Muftah S Abushahama, Omar Gerwash, Jacqueline M Hughes, Elizabeth A Wright, Mohamed S Elmahaishi, Zhao-Rong Lun, Denise Thomasson, Geoff Hide
BACKGROUND: Toxoplasma gondii is a parasite that causes significant disease in humans. Toxoplasmosis is normally asymptomatic, unless associated with congenital transmission, or in immunocompromised people. Congenital transmission generally occurs at low frequencies. In this study, we use PCR to investigate possible congenital transmission of T. gondii during pregnancy in a cohort of mothers from Libya. METHODS: Two hundred and seventy two pregnant women (producing 276 neonates) were recruited to obtain umbilical cord tissue from their neonates at birth; DNA was extracted from that tissue and tested for T...
September 2016: Transactions of the Royal Society of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/27788185/congenital-toxoplasmosis-in-chronically-infected-and-subsequently-challenged-ewes
#10
Thaís Rabelo Dos Santos, Gabriela da Silva Magalhães Faria, Bruna Martins Guerreiro, Nathalia Helena Pereira da Silva Dal Pietro, Welber Daniel Zanetti Lopes, Helenara Machado da Silva, João Luis Garcia, Maria Cecília Rui Luvizotto, Katia Denise Saraiva Bresciani, Alvimar José da Costa
This experiment studied congenital transmission in sheep experimentally infected with oocysts of Toxoplasma gondii and reinfected at one of three stages of pregnancy. Twenty ewes were experimentally infected with T. gondii strain ME49 (day 0). After the T. gondii infection became chronic (IFAT≤512), the ewes were allocated with rams for coverage. After the diagnosis of pregnancy, these ewes were allocated into four experimental groups (n = 5): I-reinfected with T. gondii on the 40th day of gestation (DG); II-reinfected on DG 80; III-reinfected on DG 120; and IV-saline solution on DG 120 (not reinfected)...
2016: PloS One
https://www.readbyqxmd.com/read/27766799/seroprevalence-of-toxoplasma-gondii-among-pregnant-women-in-northeast-india
#11
Biswajyoti Borkakoty, Dipankar Biswas, Aniruddha Jakharia, Jagadish Mahanta
OBJECTIVE: Toxoplasma gondii infection is primarily asymptomatic and one third of world's population is estimated to be infected by this protozoan parasite. This study was carried out to determine the seroprevalence of T. gondii infection among pregnant women from north east India, where data on this important parasitic infection is scanty. METHODS: A total of 1141 serum archival samples collected from antenatal clinic attendees in 2007-09, were screened for T. gondii IgG by ELISA and analyzed with their socio demographic information...
October 2016: Journal of the Association of Physicians of India
https://www.readbyqxmd.com/read/27741078/the-utility-of-head-computed-tomography-in-the-evaluation-of-apparent-life-threatening-event
#12
Wayne Stark, Annie Rominger, Fred Warkentine, Kerry Caperell
OBJECTIVE: This study aimed to evaluate the diagnostic utility of empiric head computed tomography (CT) in apparent life threatening event (ALTE). METHODS: This was a retrospective chart review of children younger than 12 months presenting to an urban pediatric hospital and its suburban satellite for an ALTE from October 2009 to December 2012. The ALTE cases were identified as having had a diagnosis of ALTE (International Classification of Diseases, 9th Revision 799...
October 6, 2016: Pediatric Emergency Care
https://www.readbyqxmd.com/read/27733631/help-in-the-choice-of-automated-or-semiautomated-immunoassays-for-serological-diagnosis-of-toxoplasmosis-evaluation-of-nine-immunoassays-by-the-french-national-reference-center-for-toxoplasmosis
#13
O Villard, B Cimon, C L'Ollivier, H Fricker-Hidalgo, N Godineau, S Houze, L Paris, H Pelloux, I Villena, E Candolfi
Toxoplasmosis, a benign infection, is asymptomatic or paucisymptomatic in over 80% of cases, except in immunocompetent patients suffering from ocular toxoplasmosis or in immunocompromised patients with opportunistic or congenital toxoplasmosis. Diagnosis is based mainly on serology testing. Thus, we compared the performance of the nine most commonly used commercial automated or semiautomated immunoassays for IgG and IgM Toxoplasma gondii antibody detection, that is, the Advia Centaur, Architect, AxSYM, Elecsys, Enzygnost, Liaison, Platelia, VIDAS, and VIDIA assays...
December 2016: Journal of Clinical Microbiology
https://www.readbyqxmd.com/read/27722099/congenital-toxoplasmosis-clinical-features-outcomes-treatment-and-prevention
#14
Sarman Singh
Toxoplasmosis is caused by a coccidian parasite, Toxoplasma gondii. The parasite is highly prevalent both in humans and in warm-blooded animals. Cat family animals are definitive host, and these animals excrete the infective oocysts in their feces. Humans, though not definitive host, get infection by consuming water or food contaminated with cat feces. Rarely, infection can also take place through transfusing the infected blood, through transplantation of infected organs, or transplacentally from infected mother to fetus...
July 2016: Tropical Parasitology
https://www.readbyqxmd.com/read/27718221/auditory-toxicity-in-late-preterm-and-term-neonates-with-severe-jaundice
#15
Sanjiv B Amin, Satish Saluja, Arvind Saili, Nirupama Laroia, Mark Orlando, Hongyue Wang, Asha Agarwal
AIM: Jaundice may cause auditory toxicity (auditory neuropathy and hearing loss). However, total serum bilirubin (TSB) does not discriminate neonates at risk for auditory toxicity. We compared TSB, bilirubin:albumin molar ratio (BAMR), and unbound bilirubin for their association with auditory toxicity in neonates with severe jaundice (TSB ≥342μmol/L, or that met exchange transfusion). METHOD: Neonates greater or equal to 34 weeks gestational age with severe jaundice during the first 2 postnatal weeks were eligible for prospective cohort study, unless they had craniofacial malformations, chromosomal disorders, toxoplasmosis, other infections, rubella, cytomegalovirus, herpes simplex infections, surgery, or family history of congenital deafness...
October 8, 2016: Developmental Medicine and Child Neurology
https://www.readbyqxmd.com/read/27707823/toxoplasma-gondii-seroprevalence-in-the-portuguese-population-comparison-of-three-cross-sectional-studies-spanning-three-decades
#16
Maria João Gargaté, Idalina Ferreira, Anabela Vilares, Susana Martins, Carlos Cardoso, Susana Silva, Baltazar Nunes, João Paulo Gomes
BACKGROUND: Toxoplasma gondii is an obligate intracellular protozoan infecting up to one-third of the world's population, constituting a life threat if transmitted from mother to child during pregnancy. In Portugal, there is a lack of knowledge of the current epidemiological situation, as the unique toxoplasmosis National Serological Survey was performed in 1979/1980. METHODS: We studied the seroprevalence trends in the Portuguese general population over the past 3 decades, by assessing chronological spread cross-sectional studies, with special focus on women of childbearing age, by age group, region and gender...
October 5, 2016: BMJ Open
https://www.readbyqxmd.com/read/27644020/progressive-lesions-of-central-nervous-system-in-microcephalic-fetuses-with-suspected-congenital-zika-virus-syndrome
#17
Manoel Sarno, Marcelo Aquino, Kleber Pimentel, Renata Cabral, Gisela Costa, Fernanda Bastos, Carlos Brites
OBJECTIVE: Our aim was to describe the pattern and progression of Central Nervous System (CNS) lesions of microcephalic fetuses with suspected Zika Virus (ZIKV) infection. METHODS: We analyzed fetuses diagnosed with microcephaly after a routine primary care ultrasound scan suspect a fetal microcephaly in Salvador, Brazil, from July/2015 to February/2016 and these pregnancies were followed until delivery. Microcephaly was diagnosed when the head circumference was below two or more standard deviation for gestational age and its relationship with ZIKV infection was defined according to World Health Organization criteria...
September 19, 2016: Ultrasound in Obstetrics & Gynecology
https://www.readbyqxmd.com/read/27605750/sero-epidemiology-and-risk-factors-for-toxoplasma-gondii-among-pregnant-women-in-arab-and-african-countries
#18
Mohamed Alkhatim Alsammani
The epidemiology of toxoplasmosis in pregnancy is a major issue for public health. Primary infection in pregnant women can lead to serious sequelae. This review examined current sero-epidemiology and risks factor data for Toxoplasma gondii in pregnant women in Arab and African countries. A systematic electronic search of published literature was conducted. Data were extracted from relevant studies. Seropositivity is high in both regions. African countries have higher seropositivity than Arab countries due to differences in risk factors...
September 2016: Journal of Parasitic Diseases: Official Organ of the Indian Society for Parasitology
https://www.readbyqxmd.com/read/27562876/prevalence-and-incidence-of-toxoplasmosis-a-retrospective-analysis-of-mother-child-examinations-styria-austria-1995-to-2012
#19
Christian Berghold, Sereina Annik Herzog, Heidelinde Jakse, Andrea Berghold
In Austria, mandatory screening for the prevention of congenital toxoplasmosis stipulates a serological test for antibodies against Toxoplasma gondii as early as possible in pregnancy. In the case of a seronegative result, subsequent tests at intervals of 8 weeks are requested. We analysed serological data from Styria, an Austrian federal state, to determine the seroprevalence and incidence of Toxoplasma infections. The study included 353,599 tests from 103,316 women during 158,571 pregnancies from 1995 to 2012...
August 18, 2016: Euro Surveillance: Bulletin Européen sur les Maladies Transmissibles, European Communicable Disease Bulletin
https://www.readbyqxmd.com/read/27528009/seroprevalence-of-toxoplasma-gondii-igg-and-igm-antibodies-and-associated-risk-factors-in-women-of-child-bearing-age-in-njinikom-nw-cameroon
#20
Elvis Chongsi Wam, Leonard Fonkeng Sama, Innocent Mbulli Ali, Walter Akoh Ebile, Lucy Agyingi Aghangu, Christopher Bonglavnyuy Tume
BACKGROUND: Toxoplasmosis is a widely distributed zoonotic disease, caused by the protozoan parasite Toxoplasma gondii. T. Infections can result in stillbirths, abortions or congenital defects during pregnancy, as well as toxoplasmic encephalitis in HIV/AIDS patients. This study aimed to determine the seroprevalence and risk factors for T. gondii infection in women seeking antenatal and medical care in the locality of Njinikom, North West of Cameroon. METHODS: We conducted a cross-sectional study from August to December 2014 consecutively enrolling 178 consenting women aged 15 to 49 years attending antenatal care or medical check-ups at the hospital...
August 15, 2016: BMC Research Notes
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