RESUMO
La enfermedad diverticular corresponde a una condición habitual en el territorio occidental, siendo el hallazgo más frecuente en población de zonas urbanizadas. Respecto a su origen, se ha planteado la influencia de factores ambientales y genéticos, incluyendo en su etiología una inadecuada ingesta de fibra dietética, disbiosis de la microbiota intestinal y niveles alterados de vitamina D. A su vez, la enfermedad diverticular sintomática no complicada (EDNC) corresponde a un tipo de diverticulosis crónica cuyas características asemejan al síndrome de intestino irritable, lo que resalta la importancia en la comprensión de esta condición. Recientemente, se ha discutido la forma en que se aborda la enfermedad diverticular y en el siguiente escrito se expondrá evidencia sobre la patogénesis y su actual manejo.
Diverticular disease corresponds to a habitual condition in the western territory, being frequently found among the population of urban areas. Regarding its origin, the influence of environmental and genetic factors, including the etiology of dietary fiber intake, intestinal microbiota dysbiosis and altered levels of vitamin D have been recognized. Symptomatic uncomplicated diverticular disease corresponds to a type of chronic diverticulosis whose characteristics resemble irritable bowel syndrome, highlighting the importance of understanding this condition. Recently, the treatment of the disease has been discussed and the following review presents evidence on pathogenesis and its management.
Assuntos
Humanos , Fibras na Dieta/uso terapêutico , Doenças Diverticulares/dietoterapia , Diverticulite/dietoterapia , Doenças Diverticulares/classificação , Doenças Diverticulares/etiologia , Doenças Diverticulares/fisiopatologia , InflamaçãoRESUMO
The effect of UV radiation on habitat use of two species of intertidal fishes that inhabit the same pools but exhibit different activity levels and diets was measured: the highly active omnivorous Girella laevifrons and the cryptic carnivorous Graus nigra. Individuals of each species were acclimated to a tank divided in three sections with different illumination; no light (NL), ultraviolet light (UV) and white light (WL), and the time spent and number of visits to each section were recorded. Although both species preferred the NL section, G. laevifrons spent more time in UV and less time in WL compared with G. nigra; G. laevifrons also displayed higher number of visits to UV, suggesting a different tendency in space use in response to UV exposure in intertidal fishes.
RESUMO
BACKGROUND: Pyoderma gangrenosum is an ulcerative disease of the skin of unknown cause and generally associated to systemic illnesses. It requires an aggressive systemic therapy and there is little information about its long term evolution. AIM: To report the clinical features of patients with pyoderma gangrenosum. PATIENTS AND METHODS: Eleven patients (10 female) aged 27 to 81 years old with pyoderma gangrenosum are reported. All had a pathological study. Patients were followed up for a mean of 60 months. RESULTS: The lesions were located in the lower limbs in 8 patients. Pathological study showed neutrophyl infiltrates in nine patients. Three patients had inflammatory bowel disease [corrected]. During the follow up, the disease recurred in multiple occasions, in six patients, after treatment with steroids or sulphones, and one patient has had permanently active lesions. CONCLUSIONS: Pyoderma gangrenosum appears mostly in the lower limbs and has a high recurrence rate.
Assuntos
Dermatoses da Perna/patologia , Pioderma Gangrenoso/patologia , Corticosteroides/uso terapêutico , Adulto , Idoso , Idoso de 80 Anos ou mais , Dapsona/uso terapêutico , Feminino , Seguimentos , Humanos , Dermatoses da Perna/tratamento farmacológico , Masculino , Pessoa de Meia-Idade , Pioderma Gangrenoso/tratamento farmacológico , Sulfassalazina/uso terapêuticoRESUMO
We report a 29 years old female presenting with fever and painful infiltrated erythematous and violaceous plates with pseudo vesicles in the surface, located in both arms, four days after having suffered a tonsillitis. She was admitted with the diagnosis of Sweet syndrome and the lesions disappeared spontaneously. Two months later, she presented with a similar condition, again after an upper respiratory infection. Five months later, she was admitted with arthralgias with positive rheumatoid factor and antinuclear antibodies. Three years after the first admission, she was admitted with an acute glomerulonephritis and renal failure after another upper respiratory infection. Sweet syndrome was described in 1964 and, although initially considered benign, its association with inflammatory diseases or cancer has been reported.
Assuntos
Artrite Reumatoide/etiologia , Falência Renal Crônica/etiologia , Síndrome de Sweet/complicações , Adulto , Artrite Reumatoide/diagnóstico , Diagnóstico Diferencial , Feminino , Humanos , Falência Renal Crônica/diagnóstico , Síndrome de Sweet/diagnóstico , Síndrome de Sweet/patologiaRESUMO
Cutaneous polyarteritis nodosa is a benign form of the disease with cutaneous involvement and occasional systemic manifestations. We report a 51 years old man presenting with malaise, arthralgia, myalgia and nodular, erythematous and painful skin lesions in both legs. The pathological study of these lesions showed a polyarteritis. During hospital stay there was a mild remission of the disease without treatment, but its reappearance during follow lead to the use of prednisone.