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European Journal of Microbiology and Immunology
Authors: Cosme Alvarado-Esquivel, Luis Francisco Sánchez-Anguiano, Jesús Hernández-Tinoco, Agar Ramos-Nevarez, Sergio Estrada-Martínez, Sandra Margarita Cerrillo-Soto, Miriam Alejandra Mijarez-Hernández, Carlos Alberto Guido-Arreola, Alma Rosa Pérez-Álamos, Isabel Beristain-Garcia and Elizabeth Rábago-Sánchez

We determined the association between having a history of surgery and the seroreactivity to T. gondii. An age- and gender-matched case-control study of 391 subjects with a history of surgery and 391 subjects without this history was performed. Sera of subjects were analyzed for detection of anti-T. gondii immunoglobulin G (IgG) and M (IgM) antibodies using enzyme-linked immunoassays. Anti-T. gondii IgG antibodies were found in 25 (6.4%) of the 391 cases and in 21 (5.4%) of the 391 controls (odds ratio [OR] = 1.29; 95% confidence interval [CI]: 0.66–2.18; P = 0.54). The frequency of cases with high IgG antibody levels (10/25: 40.0%) was equal to that found in controls (8/21: 38.1%) (OR = 1.08; 95% CI: 0.32–3.56; P = 0.89). Of the 25 anti-T. gondii IgG antibody seropositive cases, 5 (16.0%) were also positive for anti-T. gondii IgM antibodies. Meanwhile, of the 21 anti-T. gondii IgG antibody seropositive controls, 4 (19.0%) were also positive for anti-T. gondii IgM antibodies (OR = 0.81; 95% CI: 0.17–3.72; P = 0.80). Logistic regression showed that only the variable “hysterectomy” was associated with T. gondii seropositivity (OR = 4.6; 95% CI: 1.6–13.4; P = 0.005). Results suggest that having a history of surgery is not an important risk factor for infection with T. gondii. However, the link between T. gondii infection and hysterectomy should be further investigated.

Open access
European Journal of Microbiology and Immunology
Authors: Cosme Alvarado-Esquivel, Sandy Pacheco-Vega, Jesús Hernández-Tinoco, Diana Saldaña-Simental, Luis Sánchez-Anguiano, Misael Salcedo-Jáquez, Agar Ramos-Nevárez, Oliver Liesenfeld, José Márquez-Conde, Sandra Cerrillo-Soto, Lucio Martínez-Ramírez and Carlos Guido-Arreola

The association of infection with Toxoplasma gondii and occupational exposure to animals has been scantly determined. We performed a case-control study with 200 subjects from Durango Province, Mexico, occupationally exposed to animals and 200 age- and gender-matched subjects without this occupation. Sera from all participants were analyzed for anti-T. gondii IgG and IgM antibodies using enzyme-linked immunoassays. The association of seroprevalence with sociodemographic, work, clinical, and behavioral characteristics in cases was determined.Cases and controls had similar frequencies of anti-T. gondii IgG antibodies (12/200: 6.0% and 11/200: 5.5%, respectively) (OR = 3.0; 95% CI: 0.12–73.64; P = 1.0). The frequency of sera with high (>150 IU/ml) levels of anti-T. gondii IgG antibodies was comparable among cases and controls (P = 0.61). Seroprevalence of anti-T. gondii IgM antibodies was similar in cases (4, 2.0%) than in controls (4, 2.0%) (P = 1.0). Multivariate analysis showed that seropositivity was associated with eating while working (OR = 7.14; 95% CI: 1.91–26.72; P = 0.003) and consumption of duck meat (OR = 5.43; 95% CI: 1.43–20.54; P = 0.01).No association between seropositivity to T. gondii and occupational exposure to animals was found. However, risk factors for infection found should be taken into account to reduce the exposure to T. gondii.

Open access
European Journal of Microbiology and Immunology
Authors: Cosme Alvarado-Esquivel, Luis Francisco Sánchez-Anguiano, Jesús Hernández-Tinoco, Alma Rosa Pérez-Álamos, Yazmin del Rosario Rico-Almochantaf, Sergio Estrada-Martínez, Raquel Vaquera-Enriquez, Arturo Díaz-Herrera, Agar Ramos-Nevarez, Ada Agustina Sandoval-Carrillo, José Manuel Salas-Pacheco, Sandra Margarita Cerrillo-Soto, Elizabeth Irasema Antuna-Salcido, Oliver Liesenfeld and Carlos Alberto Guido-Arreola

Infection with Toxoplasma gondii in brain may cause some symptoms that resemble those in women with premenstrual syndrome. To determine the association of T. gondii infection with symptoms and signs of premenstrual syndrome, we examined 489 women aged 30–40 years old. Sera of participants were analyzed for the presence of anti-Toxoplasma IgG and IgM antibodies using enzyme-linked immunoassays (EIA) and T. gondii DNA by polymerase chain reaction (PCR).

Anti-T. gondii IgG antibodies were found in 38 (7.8%) of the women studied. Anti-T. gondii IgM antibodies were found in 13 (34.2%) of the 38 IgG seropositive women. Logistic regression showed two variables associated with seropositivity to T. gondii: presence of diarrhea (odds ratio [OR] = 6.10; 95% confidence interval [CI]: 1.37–27.85; P = 0.01) and weight gain (OR = 2.89; 95% CI: 1.37–6.07; P = 0.005), and two variables associated with high (>150 IU/ml) levels of IgG against T. gondii: presence of diarrhea (OR = 7.40; 95% CI: 1.79–30.46; P = 0.006) and abdominal inflammation (OR = 3.38; 95% CI: 1.13–10.10; P = 0.02). Positivity to EIA IgG and PCR was positively associated with obesity and negatively associated with joint pain by bivariate analysis.

Our study for the first time reveals a potential association of T. gondii infection with clinical manifestations of premenstrual syndrome.

Open access