RESUMEN
Chagas disease is mainly transmitted by vertical transmission (VT) in nonendemic areas and in endemic areas where vector control programs have been successful. For the present study, we isolated natural Trypanosoma cruzi strains vertically transmitted through three generations and proceeded to study their molecular mechanism of VT using mice. No parasitemia was detected in immunocompetent mice, but the parasites were able to induce an immune response and colonize different organs. VT experiments revealed that infection with different strains did not affect mating, pregnancy, or resorption, but despite low parasitemia, VT strains reached the placenta and resulted in higher vertical transmission rates than strains of either moderate or high virulence. While the virulent strain modulated more than 2,500 placental genes, VT strains modulated 150, and only 29 genes are shared between them. VT strains downregulated genes associated with cell division and replication and upregulated immunomodulatory genes, leading to anti-inflammatory responses and tolerance. The virulent strain stimulated a strong proinflammatory immune response, and this molecular footprint correlated with histopathological analyses. We describe a unique placental response regarding the passage of T. cruzi VT isolates across the maternal-fetal interphase, challenging the current knowledge derived mainly from studies of laboratory-adapted or highly virulent strains. IMPORTANCE The main findings of this study are that we determined that there are Trypanosoma cruzi strains adapted to transplacental transmission and completely different from the commonly used laboratory reference strains. This implies a specific strategy for the vertical transmission of Chagas disease. It is impressive that the strains specialized for vertical transmission modify the gene expression of the placenta in a totally different way than the reference strains. In addition, we describe isolates of T. cruzi that cannot be transmitted transplacentally. Taken together, these results open up new insights into the molecular mechanisms of this insect vector-independent transmission form.
RESUMEN
La aparición de una enfermedad crónica, como la diabetes mellitus (DM), pone a prueba la respuesta del universo físico y psíquico de un individuo. Como objetivo general, se propone evaluar el estado emocional de las personas con DM en la consulta ambulatoria. Como objetivo particular, detectar y monitorear las necesidades psicológicas que deben formar parte integral del cuidado de la DM mediante el uso de métodos validados. El cuestionario WHO-5 se incluye como índice de bienestar general, el PAID-5 revela la existencia de una posible angustia emocional vinculada a la enfermedad, y el PHQ- 9 como índice de depresión. Ante esta situación, el Comité de Aspectos Psicosociales recomienda explorar estos aspectos para optimizar el control y el tratamiento de la enfermedad, proponiendo estas herramientas para que el equipo de salud las emplee en la detección y el reconocimiento del estado emocional de las personas con DM
Occurrence of a chronic disease, such as diabetes, prove the response of the physical and psychic universe of individuals. As a general objective, is proposed to evaluate emotional state of people with diabetes in the outpatient clinic. As principal objective, detection and monitoring the psychological needs should be a main part of diabetes care, using validated tools to evaluate this aspect. WHO-5 questionnaire is included as an index of general well-being, PAID-5, reveals the existence of a possible emotional distress linked to disease, and PHQ-9 is used as an index of depression. At this situation, the Committee on Psycho-Social Aspects recommends explore these psychological aspects, as a way to optimize the control and treatment of disease, and propose the cited tools, to be used by the health team, in detection and recognition of emotional state in people with diabetes.
Asunto(s)
Diabetes Mellitus , Psicología , Depresión , Distrés PsicológicoRESUMEN
Resumen La aparición de una enfermedad crónica, como la diabetes mellitus (DM), pone a prueba la respuesta del universo físico y psíquico de un individuo. Como objetivo general, se propone evaluar el estado emocional de las personas con DM en la consulta ambulatoria. Como objetivo particular, detectar y monitorear las necesidades psicológicas que deben formar parte integral del cuidado de la DM mediante el uso de métodos validados. El cuestionario WHO-5 se incluye como índice de bienestar general, el PAID-5 revela la existencia de una posible angustia emocional vinculada a la enfermedad, y el PHQ-9 como índice de depresión. Ante esta situación, el Comité de Aspectos Psicosociales recomienda explorar estos aspectos para optimizar el control y el tratamiento de la enfermedad, proponiendo estas herramientas para que el equipo de salud las emplee en la detección y el reconocimiento del estado emocional de las personas con DM.
Abstract Occurrence of a chronic disease, such as diabetes, prove the response of the physical and psychic universe of individuals. As a general objective, is proposed to evaluate emotional state of people with diabetes in the outpatient clinic. As principal objective, detection and monitoring the psychological needs should be a main part of diabetes care, using validated tools to evaluate this aspect. WHO-5 questionnaire is included as an index of general well-being, PAID-5, reveals the existence of a possible emotional distress linked to disease, and PHQ-9 is used as an index of depression.
