Spatial and temporal dynamics of the colonization of Pinus radiata by Fusarium circinatum, of conidiophora development in the pith and of traumatic resin duct formation.

· Fusarium circinatum causes pitch canker disease in a wide range of pine trees, including Pinus radiata, with devastating economic consequences. · To assess the spatial and temporal dynamics of growth of this pathogen in radiata pine, we examined the process of infection using both real-time PCR to quantify fungal biomass inside the plant host, and confocal microscopy using a green fluorescent protein (GFP)-tagged strain of F. circinatum. · Pathogen growth exhibited three distinct phases: an initial exponential increase in fungal biomass, concomitant with pathogen colonization of the cortex and phloem; a slowdown in fungal growth coincident with sporulating hyphae deep within the host; and stabilization of the fungal biomass when the first wilting symptoms appeared. The number of resin ducts in the xylem was found to increase in response to infection and the fungus grew inside both constitutive and traumatic resin ducts. · These results indicate that conidiation may contribute to the spatial or temporal dissemination of the pathogen. Moreover, the present findings raise the intriguing possibility that the generation of traumatic resin ducts may be of more benefit to the fungus than to the plant.

Evaluation of the effect of pollution and fungal disease on Pinus radiata pollen allergenicity.

BACKGROUND: Pollutants and other stressing factors like mold infection might increase the production of pathogen-related proteins in plants. Since this is invoked as one of the causes for the high prevalence of allergic diseases in developed countries, we aimed to determine the potential effect of environmental pollution, with or without mold infection of the trees, on the allergenic potency of pine pollen (Pinus radiata). METHODS: Pine pollen samples were recovered from three selected areas: low polluted (A), highly polluted (B) and highly polluted and infected with fungi (Spheropsis sapinea) (C). The allergenic potency of pollen from areas A, B or C were compared in vivo in 35 pine pollen-allergic patients by skin prick test and specific IgE (sIgE) quantification. Pollen was also analyzed in vitro by SDS-PAGE immunoblotting, RAST inhibition and cDNA-AFLP (amplified fragment length polymorphism) to compare differences in proteins and mRNA expression. RESULTS: The allergenic potency measured by prick test, sIgE and RAST inhibition was greater in pollen A, which was exposed to smaller amounts of NO(x), PM(10) and SO(2) but greater amounts of O(3). No differences were found in IgE-binding bands in immunoblotting or densitometry of the bands. In cDNA-AFLP, three homologous transcript-derived fragments were expressed in samples B only, with an expressed sequence tag related with stress-regulated gene expression. CONCLUSIONS: A greater allergenic potency, in terms of skin tests and sIgE, is observed in pine pollen coming from unpolluted areas. We consider that this fact might be related to a higher exposure to ozone, resulting in a greater expression of allergenic proteins.

Acceptability and safety of the menstrual cup: A systematic review of the literature / Aceptabilidad y seguridad de la copa menstrual: revisión sistemática de la literatura

Objectives: To conduct a systematic review of the literature and assess the acceptability and safety of the menstrual cup as a feminine hygiene product. Materials and methods: A search was conducted in the PubMed, Cochrane Library, Scopus, PopLine and Google Scholar databases for publications be- tween 1966 and July 2019. The terms ("Menstrual" AND "Cup") OR ("Copa" AND "Menstrual") were used. Quantitative, qualitative and mixed studies were included, as well as case series and case reports published in English and Spanish assessing the menstrual cup in women in childbearing age. The studies were selected and the data extracted by two reviewers working independently. Acceptability and safety were assessed as the primary result. The summary of the information is presented in narrative form. Results: Overall, 737 titles were found for initial review and, in the end, 38 studies were included in this work. The acceptability of the menstrual cup ranges between 35 % and 90 %. Between 10 to 45 % of women found it difficult to use. It was described as more comfortable when compared to tampons and pads. Continued use of the cup ranges between 48 and 94 %. In terms of safety, there was one case of toxic shock syndrome, one case of mechanical entrapment, and another case of allergy; and a higher risk of expulsion was found among intrauterine device users. Conclusion: The menstrual cup appears to be a comfortable, safe and efficient option for menstrual hygiene. Further randomized controlled studies and long-term prospective cohort studies are needed in order to determine the risk of complications due to excess bacterial colonization or retrograde menstruation.

TITULO: ACEPTABILIDAD Y SEGURIDAD DE LA COPA MENSTRUAL: REVISIÓN SISTEMÁTICA DE LA LITERATURA. OBJETIVO: Realizar una búsqueda sistemática de la literatura para evaluar la aceptabilidad y seguridad de la copa menstrual como producto de higiene genital femenina. METODOS: Se realizó búsqueda en las bases de datos PubMed, Cochrane Library, Scopus, PopLine y Google Scholar, desde 1966 hasta julio de 2019. Se utilizaron los términos: "Menstrual" AND "Cup" OR "Copa" AND "Menstrual". Se incluyeron estudios cuantitativos, cualitativos y mixtos, series y reportes de caso publicados en inglés y español que hubieran evaluado la copa menstrual en mujeres en edad reproductiva. Los estudios fueron selecciona- dos y los datos fueron extraídos por dos evaluadores de manera independiente. Como resultado primario se evaluó la aceptabilidad y seguridad. La síntesis de información se presenta de manera narrativa. RESULTADOS: Se encontraron 737 títulos para revisión inicial. Finalmente, se incluyeron 38 estudios. La copa menstrual tiene una aceptabilidad que varía entre el 35 y el 90 %. Del 10 al 45 % la encontraron difícil de usar. Fue descrita como más cómoda comparada con el tampón y la toalla higiénica de fabricación industrial. La continuidad de su uso está entre el 48 y el 94 %. En cuanto a la seguridad se presentó un caso de síndrome de choque tóxico, uno de atrapamiento mecánico, uno de alergia al producto y mayor riesgo de expulsión en usuarias del dispositivo intrauterino. CONCLUSIONES: La copa menstrual es una alternativa cómoda, segura y eficiente para la higiene mens- trual. Se requieren más estudios controlados alea- torizados y cohortes prospectivas a largo plazo para determinar el riesgo de complicaciones por una exagerada colonización bacteriana o menstruación retrógrada.

Management of transvaginal bowel evisceration secondary to vaginal vault dehiscence following hysterectomy: Case report and review of the literature / Manejo de evisceración intestinal transvaginal secundaria a dehiscencia de la cúpula vaginal posterior a histerectomía: reporte de caso y revisión de la literatura

Objetives: To report a case of transvaginal bowel evisceration following total abdominal hysterec- tomy, and to conduct a review of the literature on its diagnosis and treatment. Materials and methods: A 48-year-old female patient who presented to a high complexity insti- tution with transvaginal bowel evisceration lasting 10 hours. Laparotomy was performed in order to reduce the evisceration and repair the vaginal vault defect. A search was conducted in Medline via PubMed, Embase, Elsevier, Medigraphic, Wolters Kluwer Health and UpToDate using the terms "vaginal vault dehiscence," "transvaginal bowel evisceration," "dehiscence following hysterectomy," "hysterectomy complications," and using a snowball search strategy based on the studies identified, both in English and Spanish. Results: Fourteen studies were included. The diagnosis of transvaginal evisceration is primarily clinical with the observed bulging of the abdominal content through the vagina. It may also be associated with signs of peritonitis or bowel obstruction. Initial management must be an attempt at vaginal packing and prophylactic antibiotics. Several surgical techniques have been described for vaginal vault correction and reinforcement of dehiscence closure. Conclusions: Transvaginal evisceration is considered a surgical emergency. Further studies assessing the safety and effectiveness of the various management interventions are required.

Objetivos: reportar un caso de evisceración intestinal transvaginal posterior a histerectomía abdominal total y realizar una revisión de la literatura sobre su diagnóstico y tratamiento. Materiales y métodos: se presenta el caso de una paciente de 48 años que consulta a una institución de alta complejidad por evisceración intestinal transvaginal de 10 horas de evolución, se realiza laparotomía para reducción de la evisceración y reparación del defecto de cúpula vaginal. Se hace una búsqueda en Medline vía PubMed, Embase, Elsevier, Medigraphic, Wolters Kluwer Health y UpToDate con los términos: "dehiscencia de cúpula vaginal", "evisceración intestinal transvaginal", "dehiscencia posterior a histerectomía", "complicaciones histerectomía", y en bola de nieve a partir de los estudios identificados, en idiomas inglés y español. Resultados: se incluyeron 14 estudios. El diagnóstico de la evisceración transvaginal es eminentemente clínico al observar salida de contenido abdominal por vagina, se puede asociar a signos de peritonitis u obstrucción intestinal. Su manejo inicial debe intentar el empaquetamiento vaginal y la profilaxis antibiótica Se han descrito varias técnicas quirúrgicas para corregir el defecto de la cúpula vaginal y reforzar el cierre de la dehiscencia de la cúpula. Conclusiones: la evisceración transvaginal se considera una urgencia quirúrgica. Se requieren más estudios que evalúen la seguridad y la efectividad de las diferentes intervenciones para el manejo.

Reporte de un caso fatal de encefalitis autoinmunitaria asociada a teratoma ovárico / Report of a fatal case of autoimmune encephalitis associated with an ovarian teratoma

INTRODUCCIÓN: El teratoma del ovario es el tumor de células germinales más frecuente. Entre sus complicaciones se describen algunos síndromes paraneoplásicos, como la encefalitis por anticuerpos contra el receptor N-metil-D-aspartato (NMDA). CASO CLÍNICO: Mujer de 22 años sin antecedentes de importancia que consulta por cuadro clínico de 4 días de evolución caracterizado por síntomas psiquiátricos y un episodio convulsivo. Se considera un cuadro de meningoencefalitis y se indica manejo antibiótico de amplio espectro y antiviral. Ante el deterioro se sospecha una encefalitis autoinmunitaria, se identifica un tumor anexial en los estudios imagenológicos compatible con teratoma y se confirma el diagnóstico con el hallazgo de anticuerpos NMDA en el líquido cefalorraquídeo. A pesar de su resección y manejo sistémico, fallece a los 5 meses. DISCUSIÓN: La encefalitis autoinmunitaria asociada a un teratoma es inusual, pero es una complicación que debe sospecharse como diagnóstico de exclusión. La mayoría tienen un pronóstico favorable, aunque hasta una cuarta parte de los casos puede asociarse a daño irreversible en la corteza del hipocampo e incluso la muerte, principalmente cuando el diagnóstico y el tratamiento son tardíos. CONCLUSIONES: Este caso es un reto clínico que representa un vacío en la evidencia actual, puesto que no existe un estándar de manejo de los teratomas. Se propone que, una vez diagnosticado un teratoma, se realice una cistectomía ovárica. Son necesarios más estudios para validar esta recomendación.

INTRODUCTION: The ovarian teratoma is the most common cell germ tumor. Some paraneoplastic syndromes have been described, including the anti-N-methyl-D-aspartate (NMDA) receptor encephalitis as part of its complications. CASE REPORT: A 22 years old female patient with no important medical history, consults due to an acute psychotic disorder and a convulsion. A meningoencephalitis was considered and broad-spectrum antibiotics and antivirals were started. Faced with deterioration, an autoimmune encephalitis is considered as well. Imaging studies revealed an ovarian teratoma and diagnosis was confirmed with antibodies against NMDA receptor in cerebrospinal fluid. Despite its resection and systemic management, the patient dies after 5 months. DISCUSSION: The autoimmune encephalitis associated with an ovarian teratoma is rare, its a complication that must be suspected as an exclusion diagnosis and most have a favorable prognosis, however up to a quarter of cases can be associated with irreversible damage to the hippocampal cortex and even death, mainly when late diagnosis and treatment are made. CONCLUSIONS: This case is a clinical challenge, no evidence is available since there is no standard for teratoma management. It is proposed that once a teratoma is diagnosed, an ovarian cystectomy is performed. Further studies are necessary to validate this recommendation.

Reporte de caso: metástasis gástrica de carcinoma endometrial, una localización inusual / Case report: gastric metastasis of endometrial carcinoma, an unusual localization

INTRODUCCIÓN: el carcinoma endometrial es la sexta entidad maligna más común a nivel mundial. En la mayoría de casos se diagnóstica de forma temprana. Recurre principalmente a cúpula vaginal y a nivel linfático, sin embargo, se han descrito metástasis a vagina, peritoneo y pulmones, entre otros. PRESENTACIÓN DEL CASO: paciente femenina adulta mayor con antecedente de carcinoma endometrial hace 7 años, tratado quirúrgicamente con estudio histopatológico que evidenciaba un miometrio infiltrado en un 95% sin invasión a otros órganos y linfadenectomía libre de lesión (estadio FIGO IB), quien consulta por dolor abdominal localizado en mesogastrio y deposiciones melénicas, evidenciándose una lesión gástrica, con resultado de biopsia que reporta carcinoma pobremente diferenciado con positividad focal para vimentina compatible con metástasis gástrica secundaria a carcinoma endometrial. Se indica manejo sistémico con quimioterapia, se documenta respuesta total de la lesión. DISCUSIÓN: las lesiones tumorales a nivel de estómago son primarios en su gran mayoría, una metástasis a este nivel es inusual. En el momento del diagnóstico de una metástasis gástrica, la mitad de las pacientes presentan concomitante compromiso de otros órganos. El carcinoma endometrial no está descrito dentro de los primarios que generan este compromiso. CONCLUSIÓN: el caso expuesto es un reto clínico, que representa un vacío en la evidencia actual; se comparte la experiencia de un manejo exitoso. Son necesarios más estudios para evaluar el pronóstico, opciones de tratamiento y definir la pertinencia de métodos de tamización para la detección temprana de estos casos.

INTRODUCTION: the endometrial carcinoma is the sixth cancer worldwide. Usually it is diagnosed in early stages. The sites of recurrence includes vaginal cuff and lymph nodes, however some metastasis have been described to vagina, peritoneum and lungs, among others. CASE REPORT: Elder female with history of an endometrial carcinoma 7 years ago, surgically treated. With histopathology that reported myometrial infiltration in a 95% without invasion to other organs and lymphadenectomy free of neoplasm (FIGO IB), who consult at the emergency room due to abdominal pain and black stool, with further studies that make evident a gastric lesion with biopsy reported as a poorly differentiated carcinoma, vimentin positive, compatible with gastric metastasis secondary to an endometrial carcinoma. Chemoterapy was indicated, documenting total posterior response of the lesion. DISCUSSION: Secondary lessions in stomach are rare. If they are present at the moment of diagnosis half of the patients concomitantly have metastasis in other organs. The endometrial carcinoma hasn't been described as a common localization that result in this compromise. CONCLUSION: the case exposed is a clinical challenge, a therapeutic success is shared. Limited evidence is available. Further studies are necessary to evaluate the prognosis, therapeutic options and to define the relevance of screening tests for early detection.

Acceptability and safety of the menstrual cup: A systematic review of the literature / Aceptabilidad y seguridad de la copa menstrual: revisión sistemática de la literatura

RESUMEN Objetivo: realizar una búsqueda sistemática de la literatura para evaluar la aceptabilidad y seguridad de la copa menstrual como producto de higiene genital femenina. Materiales y métodos: se realizó búsqueda en las bases de datos PubMed, Cochrane Library, Scopus, PopLine y Google Scholar, desde 1966 hasta julio de 2019. Se utilizaron los términos: "Menstrual" AND "Cup" OR "Copa" AND "Menstrual". Se incluyeron estudios cuantitativos, cualitativos y mixtos, series y reportes de caso publicados en inglés y español que hubieran evaluado la copa menstrual en mujeres en edad reproductiva. Los estudios fueron selecciona- dos y los datos fueron extraídos por dos evaluadores de manera independiente. Como resultado primario se evaluó la aceptabilidad y seguridad. La síntesis de información se presenta de manera narrativa. Resultados: se encontraron 737 títulos para revisión inicial. Finalmente, se incluyeron 38 estudios. La copa menstrual tiene una aceptabilidad que varía entre el 35 y el 90 %. Del 10 al 45 % la encontraron difícil de usar. Fue descrita como más cómoda comparada con el tampón y la toalla higiénica de fabricación industrial. La continuidad de su uso está entre el 48 y el 94 %. En cuanto a la seguridad se presentó un caso de síndrome de choque tóxico, uno de atrapamiento mecánico, uno de alergia al producto y mayor riesgo de expulsión en usuarias del dispositivo intrauterino. Conclusión: la copa menstrual es una alternativa cómoda, segura y eficiente para la higiene mens- trual. Se requieren más estudios controlados alea- torizados y cohortes prospectivas a largo plazo para determinar el riesgo de complicaciones por una exagerada colonización bacteriana o menstruación retrógrada.

ABSTRACT Objective: To conduct a systematic review of the literature and assess the acceptability and safety of the menstrual cup as a feminine hygiene product. Materials and methods: A search was conducted in the PubMed, Cochrane Library, Scopus, PopLine and Google Scholar databases for publications be- tween 1966 and July 2019. The terms ("Menstrual" AND "Cup") OR ("Copa" AND "Menstrual") were used. Quantitative, qualitative and mixed studies were included, as well as case series and case reports published in English and Spanish assessing the menstrual cup in women in childbearing age. The studies were selected and the data extracted by two reviewers working independently. Acceptability and safety were assessed as the primary result. The summary of the information is presented in narrative form. Results: Overall, 737 titles were found for initial review and, in the end, 38 studies were included in this work. The acceptability of the menstrual cup ranges between 35 % and 90 %. Between 10 to 45 % of women found it difficult to use. It was described as more comfortable when compared to tampons and pads. Continued use of the cup ranges between 48 and 94 %. In terms of safety, there was one case of toxic shock syndrome, one case of mechanical entrapment, and another case of allergy; and a higher risk of expulsion was found among intrauterine device users. Conclusion: The menstrual cup appears to be a comfortable, safe and efficient option for menstrual hygiene. Further randomized controlled studies and long-term prospective cohort studies are needed in order to determine the risk of complications due to excess bacterial colonization or retrograde menstruation.

Management of transvaginal bowel evisceration secondary to vaginal cuff dehiscence following hysterectomy: Case report and review of the literature / Manejo de evisceración intestinal transvaginal secundaria a dehiscencia de la cúpula vaginal posterior a histerectomía: reporte de caso y revisión de la literatura

ABSTRACT Objetives: To report a case of transvaginal bowel evisceration following total abdominal hysterectomy, and to conduct a review of the literature on its diagnosis and treatment. Materials and methods: A 48-year-old female patient who presented to a high complexity institution with transvaginal bowel evisceration lasting 10 hours. Laparotomy was performed in order to reduce the evisceration and repair the vaginal vault defect. A search was conducted in Medline via PubMed, Embase, Elsevier, Medigraphic, Wolters Kluwer Health and UpToDate using the terms "vaginal vault dehiscence," "transvaginal bowel evisceration," "dehiscence following hysterectomy," "hysterectomy complications," and using a snowball search strategy based on the studies identified, both in English and Spanish. Results: Fourteen studies were included. The diagnosis of transvaginal evisceration is primarily clinical with the observed bulging of the abdominal content through the vagina. It may also be associated with signs of peritonitis or bowel obstruction. Initial management must be an attempt at vaginal packing and prophylactic antibiotics. Several surgical techniques have been described for vaginal vault correction and reinforcement of dehiscence closure. Conclusions: Transvaginal evisceration is considered a surgical emergency. Further studies assessing the safety and effectiveness of the various management interventions are required.

RESUMEN Objetivos: reportar un caso de evisceración intestinal transvaginal posterior a histerectomía abdominal total y realizar una revisión de la literatura sobre su diagnóstico y tratamiento. Materiales y métodos: se presenta el caso de una paciente de 48 años que consulta a una institución de alta complejidad por evisceración intestinal transvaginal de 10 horas de evolución, se realiza laparotomía para reducción de la evisceración y reparación del defecto de cúpula vaginal. Se hace una búsqueda en Medline vía PubMed, Embase, Elsevier, Medigraphic, Wolters Kluwer Health y UpToDate con los términos: "dehiscencia de cúpula vaginal", "evisceración intestinal transvaginal", "dehiscencia posterior a histerectomía", "complicaciones histerectomía", y en bola de nieve a partir de los estudios identificados, en idiomas inglés y español. Resultados: se incluyeron 14 estudios. El diagnóstico de la evisceración transvaginal es eminentemente clínico al observar salida de contenido abdominal por vagina, se puede asociar a signos de peritonitis u obstrucción intestinal. Su manejo inicial debe intentar el empaquetamiento vaginal y la profilaxis antibiótica Se han descrito varias técnicas quirúrgicas para corregir el defecto de la cúpula vaginal y reforzar el cierre de la dehiscencia de la cúpula. Conclusiones: la evisceración transvaginal se considera una urgencia quirúrgica. Se requieren más estudios que evalúen la seguridad y la efectividad de las diferentes intervenciones para el manejo.