The Brazilian Toxoplasma gondii strain BRI caused greater inflammation and impairment in anxiogenic behavior in mice, which was reverted by rosuvastatin treatment.

This study aimed to investigate the effect of rosuvastatin treatment on anxiety-related behavior and short- and long-term memory impairment in mice infected with acute RH and BRI strains of Toxoplasma gondii. Balb/C mice were infected intraperitoneally and after 2 h, oral treatment with rosuvastatin (40 mg/kg/day) was initiated for 4 days. Behaviors related to anxiety and locomotion were evaluated in the open field (OF), and short- and long-term memory through the novel object recognition test (NOR). At the end of the experiments, peritoneal fluid, brain, liver, and lung were collected for T. gondii DNA quantification and histopathological analysis. Infection with BRI strain reduced the dwell time and central locomotion in the OF (p < 0.05), indicating anxiogenic type behavior, while treatment with rosuvastatin reversed this response (p < 0.05). RH strain infection did not alter any behavior in the OF (p > 0.05) and both strains impaired short- and long-term memory (NOR test), but with no significant treatment effect (p > 0.05). The BRI strain was shown to be more damaging in relation to anxiogenic type behavior when compared to the RH strain (p < 0.05), whereas rosuvastatin reduced this damaging effect in BRI. The treatment reduced the parasite load in the peritoneal lavage, liver, and lung of animals infected with both acute strains; however, it significantly (p < 0.05) attenuated the inflammatory process only in BRI-infected and treated animals, showing that non-archetypal genotypes are more damaging in rodents. This suggests that rosuvastatin may be a drug with great therapeutic potential against T. gondii mainly to reduce damage from virulent strains.

Sífilis gestacional e congênita no estado do Paraná de 2017 a 2021: estudo transversal / Gestational and congenital syphilis in the state of Paraná from 2017 to 2021: cross-sectional study

Caracterizar e delimitar a prevalência e perfil epidemiológico da sífilis gestacional e congênita no estado do Paraná nos anos de 2017 a 2021. Estudo transversal e descritivo, com análise dos dados epidemiológicos da sífilis gestacional e congênita no estado do Paraná de 2017 a 2021. Foram utilizados os dados disponíveis no Departamento de Informática do Sistema Único de Saúde (DATASUS). No período de 2017-2021 foram notificados 12.258 casos de sífilis gestacional e 3.691 casos de sífilis congênita no Paraná. A regional de saúde com maior taxa de notificação de sífilis gestacional foi a 7ª, e a com maior taxa de casos congênitos foi a 9ª. O perfil epidemiológico das gestantes infectadas, destacou aquelas que residiam na zona urbana, com ensino médio completo, brancas, com idade entre 20 a 39 anos, sífilis terciária e diagnosticada no terceiro trimestre de gestação. A sífilis gestacional e congênita é um problema de saúde pública no Paraná, e é de suma importância o fortalecimento de políticas pública efetivas e estratégias de prevenção, detecção precoce e tratamento adequado além de aprimoramento dos programas de triagem e testagem.

To characterize and delimit the prevalence and epidemiological profile of gestational and congenital syphilis in the state of Paraná in the years 2017 to 2021. Cross-sectional and descriptive study, with analysis of the epidemiological data of gestational and congenital syphilis in the state of Paraná from 2017 to 2021. The data available in the Department of Informatics of the Unified Health System (DATASUS) were used. In the period 2017-2021, 12,258 cases of gestational syphilis and 3,691 cases of congenital syphilis were reported in Paraná. The health regional with the highest notification rate of gestational syphilis was the 7th, and the one with the highest rate of congenital cases was the 9th. The epidemiological profile of infected pregnant women highlighted those living in urban areas, with complete high school education, white, aged between 20 and 39 years, tertiary syphilis and diagnosed in the third trimester of pregnancy. Gestational and congenital syphilis is a public health problem in Paraná, and it is of utmost importance the strengthening of effective public policies and strategies for prevention, early detection and adequate treatment, besides the improvement of screening and testing programs.

Rosuvastatin enhances alterations caused by Toxoplasma gondii in the duodenum of mice.

Infection by Toxoplasma gondii may compromise the intestinal histoarchitecture through the tissue reaction triggered by the parasite. Thus, this study evaluated whether treatment with rosuvastatin modifies duodenal changes caused by the chronic infection induced by cysts of T. gondii. For this, female Swiss mice were distributed into infected and treated group (ITG), infected group (IG), group treated with 40 mg/kg rosuvastatin (TG) and control group (CG). After 72 days of infection, the animals were euthanized, the duodenum was collected and processed for histopathological analysis. We observed an increase in immune cell infiltration in the IG, TG and ITG groups, with injury to the Brunner glands. The infection led to a reduction in collagen fibers and mast cells. Infected and treated animals showed an increase in collagen fibers, acidic mucin-producing goblet cells, intraepithelial lymphocytes and mast cells, in addition to the reduction of muscle, neutral mucin-producing and Paneth cells. While treatment with rosuvastatin alone led to increased muscle layer, proportion of neutral mucin-producing goblet cells, Paneth cells, and reduction of collagen fibers. These findings indicate that the infection and treatment caused changes in the homeostasis of the intestinal wall and treatment with rosuvastatin potentiated most parameters indicative of inflammation.

Intoxicação exógena: análise epidemiológica dos casos notificados em crianças no Município de Maringá (PR) / Exogenous intoxication: epidemiological analysis of reported cases in children in the city of Maringá, Brazil

A intoxicação exógena entre crianças é um agravo que apresenta alta ocorrência e morbidade e constitui-se um importante problema de saúde pública. O objetivo desta pesquisa foi descrever o perfil epidemiológico dos casos de intoxicação exógena na população de 0 a 14 anos na cidade de Maringá (PR) entre os anos de 2017 a 2021. Trata-se de uma análise epidemiológica descritiva, retrospectiva e transversal realizada a partir dos dados das notificações compulsórias no Sistema de Informação de Agravos de Notificação. Neste recorte temporal foram notificados 1.223 casos de intoxicação exógena, a maioria ocorrida entre indivíduos de raça branca, com idade entre 1 e 4 anos, não havendo diferença entre os gêneros. Medicamentos foram os agentes tóxicos mais associados aos acidentes e 98,9% dos casos evoluíram para cura sem sequelas. Considerando a vulnerabilidade das crianças à intoxicação exógena, é de fundamental importância identificar as características epidemiológicas desse agravo nesta população.

Exogenous intoxication among children is a disease with high occurrence and morbidity and is an important public health problem. The objective of this research was to describe the epidemiological profile of exogenous poisoning cases in the population aged 0 to 14 years in the city of Maringá, Brazil between the years 2017 to 2021. This is a descriptive, retrospective and cross-sectional epidemiological analysis carried out from the data of compulsory notifications in the Notifiable Diseases Information System. In this time frame, 1,223 cases of exogenous intoxication were reported, most occurring among white individuals, aged between 1 and 4 years, with no difference between genders. Medicines were the toxic agents most associated with accidents and 98.9% of the cases progressed to cure without sequelae. Considering the vulnerability of children to exogenous intoxication, it is of fundamental importance to identify the epidemiological characteristics of this disease in this population.

Increased levels of IL-17A in serum and amniotic fluid of pregnant women with acute toxoplasmosis.

This study detected and compared the levels of Il-17A, IFN-gamma and IL-10 in the amniotic fluid (AF) and serum of pregnant women with acute toxoplasmosis in southern Brazil. It also compared the serum levels of these mediators in pregnant women with acute or chronic toxoplasmosis and with uninfected women. The serological investigations of anti-T. gondii IgM and IgG from the 60 pregnant women were determined by chemiluminescence microparticle immunoassay (CMIA). Twenty patients were uninfected, twenty were in the chronic phase and twenty were in the acute phase of toxoplasmosis. The 20 pregnant women in acute phase all agreed with amniocentesis. Serum and AF cytokines were evaluated by sandwich enzyme-linked immunosorbent assay. The analyzed cytokines showed no significant difference in blood versus amniotic fluid levels of pregnant women in the acute toxoplasmosis. Furthermore, we observed that serum IL-17A was significantly higher in pregnant women in the acute phase of infection compared to pregnant women with chronic toxoplasmosis and seronegative pregnant women. T. gondii DNA was not amplified in any of the samples of amniotic fluid by the nested-PCR reaction. Serum IL-10 levels were also higher in negative pregnant women than in infected pregnant women. Our findings indicate the activation of an inflammatory response to infection by T. gondii and suggest that increased production of IL-17A may be a protective factor against infection of the fetus.

Moringa oleifera extract promotes apoptosis-like death in Toxoplasma gondii tachyzoites in vitro.

Toxoplasma gondii is the causative agent of toxoplasmosis, and an important problem of public health. The current treatment for toxoplasmosis is the combination of pyrimethamine and sulphadiazine, which do not act in the chronic phase of toxoplasmosis and have several side-effects. This study evaluated the anti-T. gondii activity and potential mechanism of Moringa oleifera seeds' aqueous extract in vitro. The concentration of M. oleifera extract in HeLa cells was determined by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide cell viability assays. The presence of T. gondii was assessed by quantitative polymerase chain reaction and toluidine blue staining. Pyrimethamine and sulphadiazine were used as drug controls. Modifications in T. gondii morphology and ultrastructure were observed by electron microscopy. In vitro, the M. oleifera extract had no toxic effect on HeLa cells at concentrations below 50 µg mL−1. Moringa oleifera extract inhibits T. gondii invasion and intracellular proliferation with similar results for sulphadiazine + pyrimethamine, and also shows cellular nitric oxide production at a concentration of 30 µg mL−1. Electron microscopy analyses indicated structural and ultrastructural modifications in tachyzoites after treatment. We also observed an increase in reactive oxygen species production and a loss of mitochondrial membrane integrity. Nile Red staining assays demonstrated a lipid accumulation. Annexin V­fluorescein isothiocyanate and propidium iodide staining demonstrated that the main action of M. oleifera extract in T. gondii tachyzoites was compatible with late apoptosis. In conclusion, M. oleifera extract has anti-T. gondii activity in vitro and might be a promising substance for the development of a new anti-T. gondii drug.

Rosuvastatin revert memory impairment and anxiogenic-like effect in mice infected with the chronic ME-49 strain of Toxoplasma gondii.

The aim of this study was to investigate the effect of rosuvastatin treatment on memory impairment, and anxiogenic-like effects in mice chronically infected with Toxoplasma gondii. For this, Balb/c mice were infected orally with chronic ME-49 strain of Toxoplasma gondii. Oral treatment with rosuvastatin (40mg/kg/day) started on the 51st day post-infection and was performed daily for 21 days. After completion of treatment, anxiety-like effects and locomotion were investigated in the open field (OF) test, whereas novel object recognition (NOR) test was used for evaluation of short- and long-term memory. At the end of the experiments, the brain was collected for Toxoplasma gondii DNA quantification and histopathological analysis. Infection with ME-49 strain decreased the time spent in the center of OF, indicating an anxiogenic effect, without affecting total and peripheral locomotion. Rosuvastatin treatment inhibited the change in the center time. Besides, pharmacological treatment increased total and central locomotion in both non-infected and infected animals. Infection also impaired both short- and long-term memory in the NOR test, and these effects were reverted by rosuvastatin treatment. In addition to effects in behavioral changes, rosuvastatin also reduced parasite load in the brain and attenuated signs of brain inflammation such as perivascular cuffs, inflammatory cell infiltration and tissue damage. These findings indicate for the first time the efficacy of rosuvastatin in treatment of memory impairment and anxiogenic effect evoked by infection with Toxoplasma gondii. These effects might be mediated by reduced cyst load, which in turn decrease inflammation and damage in the brain.

Prospective evalution of pregnant women with suspected acute toxoplasmosis treated in a reference prenatal care clinic at a university teaching hospital in Southern Brazil.

Infection by the protozoan Toxoplasma gondii during pregnancy demands greater attention from the health authorities due to the risk of placental transmission, which can have devastating consequences to the foetus and newborn. This study was conducted in a high-risk prenatal care outpatient clinic of a university teaching hospital. Pregnant women screened for specific IgM and IgG anti -T. gondii, attended from January 2009 to August 2018 were included. From 530 suspected patients, 218 were followed up and they presented positive IgM and IgG anti- T. gondii. From these patients, 83 (38.0%) had low IgG avidity, 39 (18%) seroconverted in the second or third trimester of pregnancy, 19 (8.7%) had no avidity test, 69 (31.6%) had high IgG avidity after 16 weeks of gestation, five had recurrent chorioretinitis (2.2%) and three (1.3%) were seropositive to HIV. Complementary diagnoses were made in 30/48 (62.5%) of the patients revealing the presence of specific IgA antibodies raised to T. gondii; 3/63 (4.8%) peripheral blood samples and 1/57 (1.8%) amniotic fluid sample. There were eight foetal deaths, one case of neonatal hepatomegaly and one case of T. gondii DNA detected in a peripheral blood sample. Of the 139 newborn deliveries at the teaching hospital, there was a 38% loss of follow-up. The prevalence of congenital toxoplasmosis was 1.2 cases/1,000 live births in this study area, according to the retrospective survey of cases. Prenatal treatment may have helped to reduce the risk of vertical transmission.

Prevalência e fatores relacionados a sintomas depressivos em pessoas com Diabetes mellitus tipo 2 / Prevalence of and factors related to depressive symptoms in people with type 2 diabetes mellitus

O objetivo do estudo foi identificar a prevalência e os fatores relacionados a sintomas depressivos em pessoas com Diabetes mellitus tipo 2 (DM2). Estudo transversal realizado com 104 pessoas com DM2, utilizando questionário com características sociodemográficas e clínicas e o Inventário de Depressão de Beck. Realizou-se análise descritiva e de correlação entre sintomas depressivos e as variáveis de interesse, com uso dos testes Spearman e Kruskal-Wallis. Dentre os participantes, 25% (n=26) manifestavam sintomas depressivos, sendo estes mais frequentes entre idosos, com mais de cinco anos de diagnóstico e que estavam com sobrepeso. Conclui-se pela necessidade de rastreamento e identificação precoce de sintomas depressivos em indivíduos com DM2, em especial nos idosos, com maior tempo de diagnóstico e com alteração do estado nutricional. Nestes casos, são bem-vindas intervenções profissionais pautadas em ações de promoção da saúde, qualidade de vida e prevenção de complicações relacionadas à combinação destas condições crônicas.

The objective of the study was to identify the prevalence of and factors related to depressive symptoms in people with type 2 diabetes mellitus (T2DM). A cross-sectional study was conducted with 104 people with T2DM, using a questionnaire with sociodemographic and clinical characteristics and the Beck Depression Inventory. A descriptive and correlation analysis between depressive symptoms and the variables of interest was performed using the Spearman and Kruskal-Wallis tests. Among the participants, 25% (n=26) had depressive symptoms, which were more frequent among those who were elderly, had a time of diagnosis of over five years and were overweight. It was concluded that there is a need for screening and early identification of depressive symptoms in individuals with T2DM, especially in the elderly, individuals with longer diagnosis time and who are overweight. In these cases, professional interventions based on actions to promote health, quality of life and prevention of complications related to the combination of these chronic conditions are encouraged.

Análise do controle da toxoplasmose gestacional e ocular nos serviços de Atenção Primária da 15ª Regional de Saúde do Paraná / Control analysis of pregnancy and ocular toxoplasmosis in Primary Care centers of the 15th Health Division of the state of Parana

Introdução: A primo-infecção pelo Toxoplasma gondii na gestação causa um risco de transmissão fetal entre 10% e 100%. Em 2006, a 15ª Regional de Saúde do Paraná criou a Rede de Controle da Toxoplasmose Gestacional e Congênita com referência para o Hospital Universitário de Maringá. Objetivo: avaliar as medidas adotadas pelos profissionais da Atenção Primária, para o controle da toxoplasmose gestacional e ocular. Método: Foram sorteadas 20% das 39 Unidades Básicas de Saúde de quatro municípios pertencentes à 15ª Regional de Saúde. A abordagem aos profissionais que assistiam as gestantes foi mediada por um questionário estruturado. Os dados coletados foram sobre as medidas realizadas: com gestantes soro não reagentes, com suspeita aguda, e com toxoplasmose ocular. Resultados: A maioria dos profissionais desconhecia a rede de controle, maneiras de infecção e medidas profiláticas para toxoplasmose. Conclusão: Isto mostra a importância da atualização profissional e perseverança da educação continuada (AU)

INTRODUCTION The primary infection by Toxoplasma gondii in pregnancy leads to a 10%--100% risk of fetal transmission. In 2006, the15th Health Division of the state of Paraná created the Network for Gestational and Congenital Toxoplasmosis Control with reference to the University Hospital of the city of Maringá. OBJECTIVE to evaluate the measures taken by primary care professionals regarding the control of gestational and ocular toxoplasmosis. METHOD Twenty percent of the 39 Basic Health Units in four municipalities belonging to the 15th Health Division of Paraná. The professionals who attended the pregnant women were interviewed through structured questionnaires. Data were collected on the measures carried out with non-reactive pregnant women, with acute suspicion, and ocular toxoplasmosis. RESULTS Most professionals were unaware of this control network, of the mode of infection, and the toxoplasmosis prophylactic measures. CONCLUSION This shows the importance of professional updating, and perseverance in continuing education (AU)