ABSTRACT
ABSTRACT Purpose: To investigate whether renal modifications occur following treatment with dutasteride or finasteride. Methods: Twenty-four male rats were divided into three groups: control (that received distilled water), dutasteride (0.5 mg/kg/day), and finasteride (5 mg/kg/day) groups. All administrations were given by gavage for 40 consecutive days. After inducing euthanasia, blood was collected for urea and creatinine analyses, and both the kidneys were collected for stereological analyses of kidney morphology. Results: Serum urea and creatinine levels were increased in both the finasteride and the dutasteride groups compared with those in the control group. In addition, kidney weight, kidney volume, cortical volume, glomerular volumetric density, and mean glomerular volume were reduced in both treatment groups. Finally, the number of glomeruli per kidney was reduced by 26.8% in the finasteride group and by 51.6% in the dutasteride group compared with that in the control group. Conclusions: The 5-ARIs finasteride and dutasteride promoted morphological and functional damages in rat kidneys. In addition, rats in the dutasteride group showed more severe renal modifications than those in the finasteride group.
Subject(s)
Animals , Male , Rats , Finasteride , 5-alpha Reductase Inhibitors , Dutasteride , KidneyABSTRACT
Objetivos: Os autores relatam um caso de catatonia secundária à exposição a mefedrona, um derivado semissintético do alcalóide catinona, e fazem uma revisão da literatura sobre essa substância que vem sendo usada crescentemente como droga recreativa.Descrição do caso: Um adolescente de 14 anos foi levado ao serviço de emergência por apresentar quadro de agitação psicomotora grave com auto e heteroagressividade seguido de estupor, mutismo e acinesia. Ao exame na admissão apresentava-se sem resposta a estímulos. A investigação complementar não mostrou alterações relevantes. Durante a hospitalização apresentou dois episódios de agitação psicomotora grave e no restante do tempo manteve estado pseudocomatoso. Após ser conhecido o consumo de mefedrona previamente ao início do quadro, e perante a hipótese diagnóstica de catatonia, iniciou-se com lorazepam, com o que o paciente apresentou recuperação rápida ecompleta.Conclusões: Segundo a bibliografia consultada, este é o primeiro relato publicado de catatonia associada ao consumo de mefedrona. O caso ilustra uma manifestação psiquiátrica grave secundária à exposição a essa droga recreativa, facilmente adquirida pelos adolescentes apesar de já terem sido descritos casos fatais associados ao seu consumo.
Aims: The authors report a case of catatonia secondary to exposure to mephedrone, a semisynthetic derivativeof the alkaloid cathinone, and review the literature on this substance that has been increasingly used as a recreational drug.Case description: A 14 year old boy was taken to the emergency room presenting severe psychomotor agitation with self and heteroaggressiveness followed by stupor, mutism and akinesia. On the admission examination the patient was unresponsive to stimuli. Complementary examination showed no significant changes. During hospitalization he had two episodes of severe psychomotor agitation and in the rest of the time he kept a pseudo-comatose state. After knowledge on the consumption of mephedrone prior to the onset of symptoms and facing the diagnostic hypothesis of catatonia, lorazepam was started, after which the patient showed rapid and complete recovery.Conclusions: According to the reviewed literature, this is the first published report of catatonia associated with consumption of mephedrone. The case illustrates a severe psychiatric manifestation secondary to exposure to this recreational drug, easily acquired by adolescents despite fatalities associated with its consumption have already been described.