In Vitro IL-1, TNF and IL-6 Production of Peripheral Blood Mononuclear Cells Stimulated with Different Hemodiaysis Membranes / 대한내과학회지

OBJECTIVES: In order to evaluate the role of these cytokines in biological response induced by blood interaction with hemodialysis membranes. METHODS: We have investigated the IL-1, TNF and IL-6 concentrations in the supernatant of 24-hours cultured peripheral blood mononuclear cells (PBMC) without(spontaneous group) or with broken cuprophan or P1VMA membranes in 9 chronic hemodialyzed patients and 8 healthy controls. The blood samples were drawn before dialysis using following criteria: (a) in last dialytic treatment with PMMA membranes(HDEl), (b) after two weeks of dialytic treatment wih cuprophan membranes(HDE2). RESULTS: In the both of patient group(HDE1 and HDE2) and controls production of IL-l, TNF and IL-6 of PBMC stimulated with cuprophan or PMMA membrane particles was increased compared to those of spontaneous group. IL-1 production of HDE1 stimulated PMMA(99.31 +/- 30.15fmol/ml) was significantly higher compared to that of cuprophan(48.43 +/- 11.29fmol/ml), TNF production of HDE2 with cuprophan(114.86 +/- 38.5lfmoVml) was significantly high compared to that of spontaneous group(52.42 +/- 29.94fmol/ml). IL-6 production of HDE2(646.70 +/- 103.84fmol/ml) was significantly high compared to that of spontaneous group(385.88 +/- 87.03fmoVml). Comparing cytokine production of PBMC, there was a significant correlation between IL-1 and IL-6(r=0.78), IL-1 and TNF(r=0.78) and TNF and IL-6(r=0,76). CONCLUSION: Our results show that the interaction of cuprophan or PMMA membranes with blood increase the production of IL-1, TNF and IL-6. We suggest that in patients undergoing routine hemodialysis PBMC are primed by exposure to chronic stimulation.

A Case of Intrathoracic Kidney in an Adult / 대한신장학회잡지

Intrathoracic kidney is a very rare congenital anomaly in development of the kidney. It was firstly described by Mikulics in 1922. More than 130 cases were reported in the world. Most of the patients have no clinical problem and discovered incidentally in chest X-ray. We have experienced a case of intrathoracic kidney in a 48-year-old female who was admitted due to recurrent calculous cholecystitis. Intrathoracic mass lesion was noted in the plain chest film and confirmed as intrathoracic kidney by chest computed tomography and intravenous pyleography. We report a case of intrathorcic kidney with brief review of literature.