RESUMEN
Capnocytophaga canimorsus is an Anaerobic Gram-Negative bacterium present in the oral microbiology of cats and dogs. It can produce infections in humans, being capable of causing severe complications with the development of septic shock. There are known cases where this bacterium developed medical complications like thrombotic microangiopathy and disseminated intravascular coagulation. We have the case of 79 years old male that developed thrombotic microangiopathy and splenic infarction linked to bacteraemia by Capnocytophaga canimorsus. Due to its severity, it was necessary to start renal replacement therapy and several sessions of plasmapheresis with good evolution. (AU)
Capnocytophaga canimorsus es una bacteria anaerobia gramnegativa presente en la microbiología oral de gatos y perros. Puede producir infecciones en humanos, siendo capaz de provocar un diagnóstico severo con desarrollo de shock séptico. Existen casos descritos con complicaciones médicas como Microangiopatía Trombótica y Coagulación Intravascular Diseminada. Presentamos el caso de un varón de 79 años que desarrolló microangiopatía trombótica e infarto esplénico asociado a bacteriemia por Capnocytophaga canimorsus. Por su gravedad, fue necesario iniciar terapia de reemplazo renal y varias sesiones de plasmaféresis con buena evolución. (AU)
Asunto(s)
Humanos , Masculino , Anciano , Microangiopatías Trombóticas/diagnóstico , Microangiopatías Trombóticas/cirugía , Microangiopatías Trombóticas/terapia , Trasplante de Riñón , Choque Séptico , Bacteriemia , CapnocytophagaRESUMEN
Many medicinal plant species are currently threatened in their natural habitats because of the growing demand for phytochemicals worldwide. A sustainable alternative for the production of bioactive plant compounds are plant biofactories based on cell cultures and organs. In addition, plant extracts from biofactories have significant advantages over those obtained from plants, since they are free of contamination by microorganisms, herbicides and pesticides, and they provide more stable levels of active ingredients. In this context, we report the establishment of Satureja khuzistanica cell cultures able to produce high amounts of rosmarinic acid (RA). The production of this phytopharmaceutical was increased when the cultures were elicited with coronatine and scaled up to a benchtop bioreactor. S. khuzistanica extracts enriched in RA were found to reduce the viability of cancer cell lines, increasing the sub-G0/G1 cell population and the activity of caspase-8 in MCF-7 cells, which suggest that S. khuzistanica extracts can induce apoptosis of MCF-7 cells through activation of the extrinsic pathway. In addition, our findings indicate that other compounds in S. khuzistanica extracts may act synergistically to potentiate the anticancer activity of RA.