STUDY OF TOXOPLASMA GONDII INFECTION IN EPILEPTIC CHILDREN

2014 ◽  
pp. 63-67
Author(s):  
Thi Hong Duc Nguyen ◽  
Nu Van Anh Ton
Keyword(s):  
Toxoplasma Gondii ◽  
Clinical Characteristics ◽  
Pediatric Patients ◽  
Igg Antibodies ◽  
Key Words Epilepsy ◽  
Epileptic Children ◽  
Center Hospital ◽  
Toxoplasma Gondii Infection ◽  
Acquired Epilepsy ◽  
Pediatric Center

Objective: Epilepsy is a chronic neurological disorder that affects many people of all ages. Some recent studies showed that cerebral toxoplasmosis is one of the causes’ acquired epilepsy in developing countries. In this study, we investigated the frequency of Toxoplasma gondii infection in epileptic children and some clinical characteristics difference with between seropositive and seronegative of T.gondii. Material and methods: We selected 62 pediatric patients with epilepsies that were treatment at Pediatric center (Hue Center Hospital) and tested them for evidence of T. gondii IgM, IgG antibodies by the enzyme-linked immunesorbent assay (ELISA). We studied some clinical characteristics differences between T.gondii seropositive and seronegative groups. Results: The seropositive proportion of antibodies to Toxoplasma gondii in epileptic children was 25.8% (25% IgM(+)IgG(-), 56,25% IgG(+)IgM(-) and 18.75% IgM(+)IgG(+)) and the over 10 age group accounted for the highest percentage of T.gondii positive (43.8%). The seropositive group had a significant different than seronegative group about ages, frequency of seizures and period of disease. There had no significant different between two groups about sex, residency and the type of seizures. Conclusion: Toxoplasma gondii had a high proportion in epileptic children. Key words: Epilepsy, Toxoplasma gondii

scholarly journals Toxoplasma gondii Infection and Clinical Characteristics of Patients With Schizophrenia: A Systematic Review and Meta-analysis

2020 ◽  
Vol 1 (1) ◽  
Author(s):  
Arjen L Sutterland ◽  
David A Mounir ◽  
Juul J Ribbens ◽  
Bouke Kuiper ◽  
Tom van Gool ◽  
...  
Keyword(s):  
Systematic Review ◽  
Toxoplasma Gondii ◽  
Publication Bias ◽  
Clinical Characteristics ◽  
Negative Symptoms ◽  
Age Of Onset ◽  
Meta Analysis ◽  
Random Effects Models ◽  
Duration Of Illness ◽  
Toxoplasma Gondii Infection

Abstract Schizophrenia is associated with an increased prevalence of IgG antibodies against Toxoplasma gondii (T. gondii seropositivity), whereby the infection seems to precede the disorder. However, it remains unclear whether a T. gondii infection affects clinical characteristics of schizophrenia. Therefore, a systematic review and meta-analysis was conducted following PRISMA guidelines examining the association between T. gondii seropositivity and severity of total, positive, or negative symptoms or age of onset in schizophrenia. PubMed, Embase, and PsycInfo were systematically searched up to June 23, 2019 (PROSPERO #CRD42018087766). Random-effects models were used for analysis. Furthermore, the influence of potential moderators was analyzed. Indications for publication bias were examined. From a total of 934 reports, 13 studies were included. No overall effect on severity of total, positive, or negative symptoms was found. However, in patients with a shorter duration of illness T. gondii seropositivity was associated with more severe positive symptoms (standardized mean difference [SMD] = 0.32; P < .001). Similar but smaller effects were seen for total symptoms, while it was absent for negative symptoms. Additionally, a significantly higher age of onset was found in those with T. gondii seropositivity (1.8 y, P = .015), although this last finding was probably influenced by publication bias and study quality. Taken together, these findings indicate that T. gondii infection has a modest effect on the severity of positive and total symptoms in schizophrenia among those in the early stages of the disorder. This supports the hypothesis that T. gondii infection is causally related to schizophrenia, although more research remains necessary.

scholarly journals First report on seroprevalence and risk factors of Toxoplasma gondii infection in sheep and goats in North Lebanon

2019 ◽  
Vol 13 (09) ◽  
pp. 831-836 ◽  
Author(s):  
Dima El Safadi ◽  
Dany Abi Chahine ◽  
Alissar Al Tarraf ◽  
Omar Raii ◽  
Karim Mesto ◽  
...  
Keyword(s):  
Risk Factors ◽  
Risk Factor ◽  
Toxoplasma Gondii ◽  
Immunoglobulin G ◽  
Agglutination Test ◽  
Economic Losses ◽  
Transplacental Transmission ◽  
Igg Antibodies ◽  
Modified Agglutination Test ◽  
Toxoplasma Gondii Infection

Introduction: Toxoplasmosis is of dual importance in both public and veterinary health due to the respective risk of transplacental transmission in primo-infected pregnant women and economic losses caused by abortions in mammals. One of the main routes of Toxoplasma gondii transmission to humans is the consumption of raw or undercooked meats containing parasitic cysts. Here, we performed the first epidemiological study to determine the seroprevalence and the risk factors of toxoplasmosis in livestock in Lebanon. Methodology: Using a modified agglutination test with a cut-off of 1:40, we tested the positivity rate of Immunoglobulin G antibodies in the sera of 100 sheep and 80 goats collected from 18 different livestock farms located in North Lebanon between March and June 2018. Results: Anti-Toxoplasma gondii IgG antibodies were detected in 42% of sheep and 34% of goats. Adults (> 1 year) were significantly more infected by T. gondii than the lambs (< 1 year) in both species (p < 0.05). Conclusions: These findings indicated that food animals are highly exposed to T. gondii in Lebanon and could be potentially a major risk factor of T. gondii infection to humans. Consequently, national prophylactic strategies should be implemented to control and to prevent T. gondii transmission between animals and humans.

scholarly journals Seroepidemiology of Toxoplasma gondii infection in people with alcohol consumption in Durango, Mexico

PLoS ONE ◽  
2021 ◽  
Vol 16 (1) ◽  
pp. e0245701
Author(s):  
Sergio Estrada-Martinez ◽  
Alma Rosa Pérez-Álamos ◽  
Melina Ibarra-Segovia ◽  
Isabel Beristaín-Garcia ◽  
Agar Ramos-Nevárez ◽  
...  
Keyword(s):  
Logistic Regression ◽  
Toxoplasma Gondii ◽  
Alcohol Consumption ◽  
Bivariate Analysis ◽  
History Of Surgery ◽  
Igg Antibodies ◽  
Serum Samples ◽  
Igm Antibodies ◽  
History Of ◽  
Toxoplasma Gondii Infection

The seroepidemiology of infection with Toxoplasma gondii (T. gondii) in alcohol consumers is largely undeveloped. In light of this, we sought to determine the seroprevalence of T. gondii infection in alcohol consumers in Durango, Mexico, and the association of T. gondii seroprevalence with characteristics of the population studied. Anti-T. gondii IgG and IgM antibodies were searched in sera of participants using commercially available enzyme immunoassays. Bivariate and logistic regression analyses were then used to determine the association between T. gondii infection and the characteristics of the population studied. Of the 1544 people studied (mean age: 39.4±14.0 years), 173 (11.2%) tested positive for anti-T. gondii IgG antibodies. We were able to test 167 of the 173 anti-T. gondii IgG positive sera for anti-T. gondii IgM antibodies. Fifty-five (32.9%) of these 167 serum samples were positive for anti-T. gondii IgM antibodies. Bivariate analysis showed that visual impairment, history of surgery, and hepatitis were negatively associated with T. gondii IgG seropositivity (P<0.05). In women, seropositivity to T. gondii was positively associated with a history of pregnancy (P<0.05). Logistic regression analysis showed that T. gondii seropositivity was associated with the variables consumption of armadillo meat (OR = 2.33; 95% CI: 1.04–5.22; P = 0.03), and the use of latrines for elimination of excretes (OR = 2.27; 95% CI: 1.07–4.80; P = 0.03); and high (>150 IU/ml) anti-T. gondii IgG antibodies were associated with consumption of both armadillo meat (OR = 2.25; 95% CI: 1.01–5.02; P = 0.04) and crowding at home (OR = 1.63; 95% CI: 1.02–2.61; P = 0.03). We found a distinct T. gondii seroprevalence in people with alcohol consumption from those previously found in population groups in the region. This is the first study that illustrates the association between high anti-T. gondii antibodies and crowding in Mexico, and the second study on the association between T. gondii infection and consumption of armadillo meat and the use of latrines in this country. We conclude that epidemiology of T. gondii infection in people with alcohol consumption deserves further investigation.

scholarly journals Anticorpos anti-toxoplasma gondii em gatos domiciliados no Município de Rio Branco, Acre, Brasil

2015 ◽  
Vol 36 (6) ◽  
pp. 3757 ◽  
Author(s):  
Soraia Figueiredo de Souza ◽  
Luciana Dos Santos Medeiros ◽  
Adriane De Souza Belfort ◽  
Andrey Luiz Lopes Cordeiro ◽  
Michelle Federle ◽  
...  
Keyword(s):  
Risk Factors ◽  
Toxoplasma Gondii ◽  
Significant Risk ◽  
Igg Antibodies ◽  
Domestic Cats ◽  
Chi Square ◽  
Significance Level ◽  
Chi Square Test ◽  
One Year ◽  
Toxoplasma Gondii Infection

Blood samples were collected from 89 cats to assess the prevalence of IgG antibodies against Toxoplasma gondii by indirect immunofluorescence (IIF) and the possible risk factors associated with feline Toxoplasma gondii infection. An epidemiological questionnaire was developed and implemented for owners of domestic cats domiciled in Rio Branco, Acre. The results were statistically evaluated with the odds ratio and chi-square tests, considering the significance level of 5%. Of 89 animals’ samples, 22 had antibodies against Toxoplasma gondii. Among the 22 reactive animals, 15 (68.19%) were female, 15 (68.19%) were less than one year old and 20 (90%) were cross breed. Concerning risk factors, there was no difference (p > 0.05) between the variables evaluated by the chi-square test. Moreover, 16 (72%) cats were fed a mixed diet, 20 (90%) of the cats had hunting habits, 18 (81%) had contact with animals of another species, 11 (50%) had access to the street, and 22 (95%) lived in homes that had areas of grass or dirt. In conclusion, the prevalence of anti-Toxoplasma gondii in domestic cats was 22.7%, and there were no significant risk factors for feline toxoplasmosis in the municipality of Rio Branco, Acre.

scholarly journals Toxoplasma gondii Infection and Suicidal Behavior in People with Alcohol Consumption

Pathogens ◽  
2021 ◽  
Vol 10 (6) ◽  
pp. 734
Author(s):  
Cosme Alvarado-Esquivel ◽  
Sergio Estrada-Martínez ◽  
Alma Rosa Pérez-Álamos ◽  
Isabel Beristain-García ◽  
Ángel Osvaldo Alvarado-Félix ◽  
...  
Keyword(s):  
Suicidal Ideation ◽  
Toxoplasma Gondii ◽  
Alcohol Consumption ◽  
Suicidal Behavior ◽  
Suicide Attempts ◽  
Igg Antibodies ◽  
Igm Antibodies ◽  
Immunosorbent Assays ◽  
Toxoplasma Gondii Infection

We determined the association between T. gondii infection and suicidal behavior in people with alcohol consumption. One-thousand four-hundred and twenty-three people with alcohol consumption were screened for suicidal behavior and tested for anti-T. gondii IgG and IgM antibodies using commercially available enzyme-linked immunosorbent assays. Anti-T. gondii IgG antibodies were found in 34 of 224 (15.2%) individuals with suicidal ideation and in 118 (9.8%) of 1199 individuals without suicidal ideation (OR: 1.63; 95% CI: 1.08–2.47; p = 0.01). Seropositivity to T. gondii was associated with suicidal ideation in women (OR: 2.24; 95% CI: 1.33–3.78; p = 0.001) and in individuals aged ≤30 years (OR: 2.68; 95% CI: 1.22–5.87; p = 0.01) and >50 years (OR: 2.85; 95% CI: 1.19–6.77; p = 0.01). Anti-T. gondii IgG antibodies were found in 17 of 136 (12.5%) individuals with suicide attempts and in 135 (10.5%) of 1287 individuals without suicide attempts (OR: 1.21; 95% CI: 0.71–2.08; p = 0.47). Seroprevalence of T. gondii infection was associated with suicide attempts in women (OR: 1.88; 95% CI: 0.99–3.55; p = 0.04). No association between anti-T. gondii IgM and suicidal ideation or suicide attempts was found. Results suggest that T. gondii infection is associated with suicidal behavior in people with alcohol consumption.

scholarly journals Toxoplasma gondii infection in two captive Patagonian maras

2019 ◽  
Vol 31 (6) ◽  
pp. 875-878
Author(s):  
Liv Østevik ◽  
Kristoffer R. Tysnes ◽  
Siv Klevar ◽  
John J. Debenham
Keyword(s):  
Toxoplasma Gondii ◽  
Adrenal Glands ◽  
Fungal Infections ◽  
Igg Antibodies ◽  
Diseased Animal ◽  
Fresh Tissue ◽  
Intracellular Parasites ◽  
Toxoplasma Gondii Infection ◽  
Inflammatory Infiltrates ◽  
Microscopic Findings

Toxoplasma gondii infection was diagnosed in 2 captive Patagonian maras ( Dolichotis patagonum). One animal developed fatal systemic toxoplasmosis and had concurrent localized bacterial and fungal infections; its daughter remained clinically healthy. Microscopic findings included acute, coagulative necrosis, lymphohistiocytic inflammatory infiltrates, and extra- and intracellular parasites in the liver, myocardium, urinary bladder, and adrenal glands of the diseased animal. PCR and subsequent genotyping of parasites from fresh tissue from both cases revealed infection with T. gondii genotype II. Direct agglutination testing of blood from the healthy individual revealed high levels of T. gondii IgG antibodies. T. gondii is a potential cause of disease and lethality in captive and wild Patagonian maras, and toxoplasmosis should be considered when managing and providing veterinary care for this species.

scholarly journals Prevalence of IgG antibodies specific to Toxoplasma gondii among blood donors in Recife, Northeast Brazil

2003 ◽  
Vol 45 (4) ◽  
pp. 229-231 ◽  
Author(s):  
Raquel A.L. Coêlho ◽  
Masashi Kobayashi ◽  
Luiz B. Carvalho Jr.
Keyword(s):  
Toxoplasma Gondii ◽  
Enzyme Immunoassay ◽  
Blood Donors ◽  
Northeast Brazil ◽  
Serological Survey ◽  
Igg Antibodies ◽  
Women Of Childbearing Age ◽  
Childbearing Age ◽  
Igg Antibody ◽  
Toxoplasma Gondii Infection

A serological survey of Toxoplasma gondii infection in blood donors was carried out in order to identify seroprevalence in Recife, Brazil. Sera from 160 individuals (119 male and 41 female) were evaluated by using a Toxoplasma IgG-antibody enzyme immunoassay (Denka Seiken Co., LTD., Tokyo, Japan). The seropositive percentual for males (79.0%) showed to be higher (p < 0.05) than for females (63.4%). This percentage increases with age, ranging from 18.2% to 92.6% for individuals aging under 20 and 40-50 years old, respectively. For women of childbearing age (18-40 years) it was found a prevalence of 51.6%.

Sero-molecular evaluation of Toxoplasma gondii infection among HIV-positive patients

2019 ◽  
Vol 113 (12) ◽  
pp. 771-775 ◽  
Author(s):  
Ehsan Ahmadpour ◽  
Reza Pishkarie-Asl ◽  
Adel Spotin ◽  
Hossein Samadi Kafil ◽  
Hasan Didarlu ◽  
...  
Keyword(s):  
Toxoplasma Gondii ◽  
Mortality Rate ◽  
Hiv Positive ◽  
Igg Antibodies ◽  
Rt Pcr ◽  
Igg Antibody ◽  
Cross Sectional ◽  
Igm Antibodies ◽  
Northwest Iran ◽  
Toxoplasma Gondii Infection

Abstract Background Toxoplasmosis is one of the most common comorbidities in HIV-positive patients with CD4+ T lymphocytes below 200 cells/μl. Early diagnosis and treatment of toxoplasmosis reduces the mortality rate in HIV-positive people. The aim of this study was to estimate the seroprevalence of Toxoplasma gondii infection in HIV-positive patients in northwest Iran using serological and molecular methods. Methods This prospective cross-sectional study included 124 HIV-positive outpatients and was conducted from January to May 2016. Anti-T. gondii IgM and IgG antibodies were detected from sera samples by chemiluminescence, while buffy coat samples were analyzed by RT-PCR for DNA detection. Patients’ socioepidemiological data were collected. Results Using chemiluminescence, 47/124 samples (37.9%) were positive for anti-Toxoplasma IgG antibodies, 2/124 samples (1.62%) were positive for IgM antibodies while 2/124 samples (1.62%) contained both IgM and IgG. There were no IgM-positive or IgG-negative patients. RT-PCR revealed four (3.22%) positive samples. On the basis of the results, a statistically significant relationship was found between anti-Toxoplasma IgG antibody seropositivity and residence (p=0.012). Conclusions The study showed a relatively low seroprevalence of anti-T. gondii IgG and IgM antibodies in HIV-positive patients in northwest Iran, while the prevalence was much higher in other regions of Iran. However, regular screening for T. gondii antibodies and early initiation of therapy are very important to decrease the mortality rate in HIV-positive patients.

scholarly journals Toxoplasma gondii infections in pigs from south Benin and assessment of breeders’ knowledge about toxoplasmosis

2020 ◽  
Vol 23 (2) ◽  
pp. 248-256
Author(s):  
A. B. N. Tonouhewa ◽  
Y. Akpo ◽  
P. Sessou ◽  
C. Salanon ◽  
G. L. Aplogan ◽  
...  
Keyword(s):  
Toxoplasma Gondii ◽  
Neonatal Mortality ◽  
Indirect Method ◽  
Apicomplexan Parasite ◽  
Parasite Transmission ◽  
Igg Antibodies ◽  
Serum Samples ◽  
Zoonotic Parasite ◽  
Toxoplasma Gondii Infection ◽  
Pig Serum

Toxoplasma gondii is a ubiquitous apicomplexan parasite that causes toxoplasmosis, a cosmopolitan zoonosis responsible for abortion and congenital malformation in animals and humans. Pigs can be a reservoir for T. gondii and act as one of the sources for parasite transmission to humans. Currently, there are no data about T. gondii infection in any animal in Benin. After the report of several cases of abortions and reproductive problems in pigs in several livestock farms in the southern region of Benin, this study was carried out to investigate the occurrence of this zoonotic parasite in pigs. A total of 184 pig serum samples have been collected in two municipalities and sent to the laboratory for the detection of anti-T. gondii IgG antibodies by ELISA indirect method. The results showed the presence of anti-Toxoplasma gondii IgG in 23% (IC95 = 22.56–23.44) of pigs (42/184). Age, sex, and race did not seem to affect the frequency of this infection. Moreover, reproductive failure has been reported on many farms. These were cases of stillbirths in 40% of farms followed by neonatal mortality (36%) and abortion cases which were frequently observed in 27% of farms. T. gondii is present in pigs from south Benin and could be responsible for reported abortions in the areas. In addition, the raw and undercook meat of pigs could be important source of Toxoplasma gondii infection in humans from south Benin

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