Objective: To investigate the clinical features of chronic renal failure (CRF) complicated by primary hypothyroidism.Methods: Thyroid function, thyroid microsome antibody ( TM), and thyroid globulin antibody (TG) were determined withradioimmunoassay in 23 CRF complicated by primary hypothyroidism patients, and the serum calcium, phosphorus, potassi-um, cholesterol, glucose, urea nitrogen, hemoglobulin, and endogenous creatinine clearance rate were also assayed. Thirty-onepatients with only CRF were in control group. Results:The level of thyroid-stimulating hormone (TSH), Ch, and Ca in pa-tients with CRF complicated by primary hypothyroidism were higher than that in control group,and serum free T4 (FT4),K,and P were lower than that in control group. The others had no difference between two groups. TG and TM increased in2 cases. Conclusion:The most important criteria in diagnosing CRF complicated by primary hypothyroidism is TSH twotimes higher than normal upper limit. The others include decreased FT4, normal level of Ca, P, and K, and increased Ch,TG,and TM. The diagnosis should be performed combined with clinical manifestations.

Objective To investigate principle and clinic pathologic characteristics of autoimmune thyroid disease(AITD) associated nephrosis. Methods By introducing 5 cases and related reference to review clinic pathologic characteristics of AITD associated nephrosis. Results AITD associated nephrosis regard proteinuria as principal, and a handful of performance is nephritic syndrome and nephritis syndrome. Pathologic characteristics are diversity. It is usually membranous nephrology, mesangial proliferative glomerulonephritis and focal and sclerosing glomerulonephritis. Conclusion Treatment of AITD associated nephrosis itself and immunosuppressive agent therapy might be useful to get remission of it.

Objective To investigate the influence of renal function on serum BNP in the diagnosis of CRF with heart failure by observing the relationship between eGFR and BNP in serum and comparing cut-off values of BNP in different eGFR levels. Methods The elderly participants were enrolled in the study, including 52 patients with heart failure, and 29 patients without heart failure and 30 healthy controls. Serum BNP level was measured by ELISA.Results The level of serum BNP increased significantly in subjects with heart failure compared with those with renal dysfunction for no-heart failure patients (P ＜ 0.05) and healthy controls. BNP level was significantly higher in CRF no-heart failure patients than in control subjects. eGFR showed negative correlation with BNP in ESRD no-heart failure patients (γ= -0. 581, P ＜ 0.01). There was no correlation between eGFR and ESRD with heart failure patients (γ= - 0.081, P ＞ 0.05). The AUC of BNP in patients (eGFR 30 ～ 60 ml) was 0. 951, when cut-off value was 1 500 ng/L,the sensitivity and specificity of BNP were 96.4% and 86. 7% respectively. The AUC of BNP in patients(eGFR ＜30 ml)was 0. 860, when cut-off value was 1 850 ng/L,the sensitivity and specificity of B NP were 66.7% and 92.9%respectively. Conclusions Heart failure was major factor result in higher levels of BNP in chronic renal failure with heart failure patients. BNP could be used as a diagnostic marker for CRF with heart failure patients.