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1.
Microorganisms ; 8(11)2020 Nov 04.
Artículo en Inglés | MEDLINE | ID: mdl-33158078

RESUMEN

Gaining long-term graft function and patient life quality remain critical challenges following kidney transplantation. Advances in immunology, gnotobiotics, and culture-independent molecular techniques have provided growing insights into the complex relationship of the microbiome and the host. However, little is known about the over time-shift of the gut microbiota in the context of kidney transplantation and its impact on both graft and health stability. Here we aimed to characterize the structure of gut microbiota within stable kidney graft recipients. We enrolled forty kidney transplant patients after at least three months of transplantation and compared them to eighteen healthy controls. The overall microbial community structure of the kidney transplanted group was clearly different from control subjects. We found lower relative abundances of Actinobacteria, Bacteroidetes, and Verrucomicrobia within the patient group and a higher abundance of Proteobacteria compared to the control group. Both richness and Shannon diversity indexes were significantly lower in the kidney graft recipients than in healthy controls. Post-graft period was positively correlated with the relative abundance of the Proteobacteria phylum, especially Escherichia.Shigella genus. Interestingly, only Parabacteroides was found to significantly differentiate patients that were not suffering from lifestyle diseases and those who suffer from post-graft complications. Furthermore, network analysis showed that the occurrence of lifestyle diseases was significantly linked with a higher number of negative interactions of Sutterella and Succinivibrio genera within patients. This study characterizes gut microbiome fluctuation in stable kidney transplant patients after a long post-allograft period. Analysis of fecal microbiota could be useful for nephrologists as a new clinical tool that can improve kidney allograft monitoring and outcomes.

2.
Saudi J Kidney Dis Transpl ; 28(6): 1435-1439, 2017.
Artículo en Inglés | MEDLINE | ID: mdl-29265061

RESUMEN

Cryptococcus neoformans is an opportunistic fungal infection affects predominately the central nervous system in HIV patients and patients with other immunocompromised states. It has rarely been described in immunocompetent patients. It is a serious infection with a high of mortality rate. We describe a case of a 48-year-old patient diagnosed with lupus nephritis treated with corticosteroids and mycophenolate mofetil who developed central nervous cryptococcosis complicated by septicemia. She died despite the use of antifungals. Cryptococcal infection is an uncommon, but often a fatal complication of systemic lupus erythematosus. Timely diagnosis and effective antifungal therapy could improve its prognosis.


Asunto(s)
Corticoesteroides/efectos adversos , Cryptococcus neoformans/patogenicidad , Inmunosupresores/efectos adversos , Nefritis Lúpica/tratamiento farmacológico , Meningitis Criptocócica/microbiología , Ácido Micofenólico/efectos adversos , Infecciones Oportunistas/microbiología , Antifúngicos/uso terapéutico , Cryptococcus neoformans/efectos de los fármacos , Cryptococcus neoformans/inmunología , Resultado Fatal , Femenino , Humanos , Huésped Inmunocomprometido , Nefritis Lúpica/diagnóstico , Nefritis Lúpica/inmunología , Meningitis Criptocócica/diagnóstico , Meningitis Criptocócica/tratamiento farmacológico , Meningitis Criptocócica/inmunología , Persona de Mediana Edad , Infecciones Oportunistas/diagnóstico , Infecciones Oportunistas/tratamiento farmacológico , Infecciones Oportunistas/inmunología , Resultado del Tratamiento
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