Biological diagnosis of congenital toxoplasmosis: methods

2000 ◽  
pp. 83-94
Author(s):  
H. Pelloux ◽  
P. Ambroise-Thomas
Keyword(s):  
Congenital Toxoplasmosis

Timing and type of prenatal treatment for congenital toxoplasmosis

2003 ◽  
Author(s):  
R Thiébaut ◽  
RE Gilbert ◽  
L Gras ◽  
G Chêne
Keyword(s):  
Congenital Toxoplasmosis ◽  
Prenatal Treatment

scholarly journals A Novel Calcium-Dependent Protein Kinase 1 Inhibitor Potently Prevents Toxoplasma gondii Transmission to Foetuses in Mouse

Molecules ◽  
2021 ◽  
Vol 26 (14) ◽  
pp. 4203
Author(s):  
Héloïse Débare ◽  
Nathalie Moiré ◽  
Firmin Baron ◽  
Louis Lantier ◽  
Bruno Héraut ◽  
...  
Keyword(s):  
Protein Kinase ◽  
Toxoplasma Gondii ◽  
Intraperitoneal Administration ◽  
Congenital Toxoplasmosis ◽  
Parasite Burden ◽  
Oral Route ◽  
Dependent Protein Kinase ◽  
Calcium Dependent ◽  
Dependent Protein ◽  
Calcium Dependent Protein Kinase

Treatments currently used to prevent congenital toxoplasmosis are non-specific of Toxoplasma gondii and have grievous side effects. To develop a more specific and less toxic drug, we have designed SP230, an imidazo[1,2-b]pyridazine salt targeting the Toxoplasma gondii calcium-dependent protein kinase 1 (TgCDPK1) and active against acute toxoplasmosis in mice. Efficiency of SP230 to inhibit foetal transmission of the parasite was evaluated in a mouse model of congenital toxoplasmosis. Swiss mice were infected at mid-pregnancy with tachyzoites or cysts of the ME49 strain of T. gondii by intraperitoneal and oral route, respectively, and treated with SP230 at 50 mg/kg for 5 days by the same routes. Parasite burden in organs of dams and in foetuses was measured by quantitative PCR. Intraperitoneal administration of SP230 drastically reduced the number of parasites (more than 97% of reduction) in the brain and lungs of dams, and led to a reduction of 66% of parasite burden in foetuses. Oral administration of SP230 was particularly efficient with 97% of reduction of parasite burdens in foetuses. SP230 did not impact number and weight of offspring in our conditions. This inhibitor of TgCDPK1 is a promising candidate for the development of alternative therapeutics to treat infected pregnant women.

Congenital Toxoplasmosis: Missed Opportunities for Diagnosis and Prevention

2020 ◽  
Author(s):  
Raquel Aitken Soares Mueller ◽  
Ana Cristina Cisne Frota ◽  
Daniela Durão Menna Barreto ◽  
Daniela Pires Ferreira Vivacqua ◽  
Gabriela Bueno Loria ◽  
...  
Keyword(s):  
Antenatal Care ◽  
Congenital Toxoplasmosis ◽  
First Trimester ◽  
University Hospital ◽  
Serological Testing ◽  
Missed Opportunities ◽  
Clinic Appointment ◽  
History Of ◽  
Acute Toxoplasmosis ◽  
Made In

Abstract Objectives Identify missed opportunities for the prevention and early diagnosis of congenital toxoplasmosis (CT) in infants followed up in a reference center for pediatric infectious diseases (PID) in Rio de Janeiro between January 2007 and December 2016. Methods Descriptive study including infants with CT, diagnosis established based on Brazil’s Ministry of Health’s criteria. All data regarding the infants and their mother’s prenatal care were collected from the medical records of the Instituto de Puericultura e Pediatria Martagão Gesteira (IPPMG)—a tertiary public pediatric university hospital. The study enrolled infants aged between 0 and 12 months followed up in the PID department of IPPMG and with confirmed infection by Toxoplasma gondii in the period between January 2007 and December 2016. All patients with diagnosis of CT registered in the PID database of the IPPMG and admitted in the above-mentioned period were included in the study. Patients whose records were not available, or who went to just one clinic appointment were excluded. Results The obstetric history of all 44 women, whose infants (45) were diagnosed with CT, was analyzed. Their median age was 22 years. None had undergone preconception serological testing for toxoplasmosis. Only 20 (45%) of them started antenatal care during the first trimester of gestation, a total of 24 (55%) had more than six antenatal care visits, and 16% of those did not undergo serological testing for toxoplasmosis. None were adequately informed of preventive measures. The diagnosis of acute toxoplasmosis was made in 50% of these pregnancies but 32% of the women were not treated. Only 10 children of these mothers were adequately screened and treated at birth. Conclusion Despite the existence of national recommendations, several opportunities were missed to prevent CT during the antenatal period and to diagnose and treat this condition in the neonatal period.

scholarly journals Seroepidemiological study of toxoplasmosis in women referred to a pre-marriage counseling center in Alborz Province, Iran

2021 ◽  
Vol 14 (1) ◽  
Author(s):  
Melica Shahighi ◽  
Aliehsan Heidari ◽  
Hossein Keshavarz ◽  
Amir Bairami ◽  
Saeedeh Shojaee ◽  
...  
Keyword(s):  
Congenital Toxoplasmosis ◽  
Pcr Analysis ◽  
Women Of Childbearing Age ◽  
Childbearing Age ◽  
Serum Samples ◽  
Chi Square ◽  
Igg Avidity ◽  
Two Samples ◽  
Chi Square Test ◽  
Associated Risk Factors

Abstract Objectives The aim of the current study was to assess prevalence of Toxoplasma infection and its associated risk factors in women of childbearing-age in central Iran. Results Of 400 serum samples assessed for anti-T. gondii antibodies, 81 (20.25%) samples were positive for anti-T. gondii antibodies, including 74 positive samples (91.3%) for anti-T. gondii IgG and seven positive samples (8.7%) for IgG and IgM. Of seven IgG and IgM positive samples, five and two samples were high and low in IgG avidity, respectively. Based on PCR analysis, Toxoplasma infection was detected in one sample with anti-T. gondii IgM and low IgG avidity. The Chi-square test showed significant correlations of T. gondii seropositivity with history of undercooked meat consumption and contacts with cats (p < 0.05). In the present study, 79.75% of the participants were negative for IgG against T. gondii infection. Furthermore, recently acquired Toxoplasma infection was found using IgG avidity and PCR assays among women of childbearing-age in the study area, which would increase the risk of their fetus becoming infected. Educational program and antenatal screening of childbearing-age women for T. gondii infection may be important primary prevention strategies and help reduce the risk of congenital toxoplasmosis in this population.

scholarly journals A pilot study on screening for gestational/congenital toxoplasmosis of pregnant women at delivery in the Eastern Province of Saudi Arabia

2021 ◽  
Vol 29 (4) ◽  
pp. 343-350
Author(s):  
Fatimah Salim Al-Yami ◽  
Fazal Karim Dar ◽  
Abdulrahman Ismaeel Yousef ◽  
Bader Hamad Al-Qurouni ◽  
Lamiaa Hamad Al-Jamea ◽  
...  
Keyword(s):  
Saudi Arabia ◽  
Pilot Study ◽  
Pregnant Women ◽  
Congenital Toxoplasmosis ◽  
Eastern Province

scholarly journals Prevention of congenital toxoplasmosis in Szeged, Hungary

1997 ◽  
Vol 26 (2) ◽  
pp. 428-435 ◽  
Author(s):  
Z Szenasi ◽  
Z Ozsvar ◽  
E Nagy ◽  
M Jeszenszky ◽  
J Szabo ◽  
...  
Keyword(s):  
Congenital Toxoplasmosis
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