OBJECTIVE:To establish a simple method for calculating the optimal pharmacokinetic-equation parameters in drugs by intravenous administration using Excel programming solution.METHODS:The pharmacokinetic parameters and compartment model parameters after intravenous injection drugs were computed by means of Excel programming solution,and the results were compared with those computed by DAS method or residual method.RESULTS:By means of Excel programming solution,the optimal pharmacokinetic parameters of one-and two-compartment models were obtained,which were completely in line with those computed by DAS program.CONCLUSION:Excel programming solution is applicable for the computation of the pharmacokinetic parameters of one-and two-compartment models following intravenous injection drugs.

OBJECTIVE:To establish a simple individualized dosage regimen of multiple oral dosing of Theophyllin. METHODS:Based on pharmacokinetic parameters,Excel function was used to design the dosage regimen of multiple oral dosing extravascular administration of one-compartment model with Theophylline as an example. RESULTS:The following parameters such as plasma drug concentration at any time (t) since administration of Theophylline,peak time,maximum steady plasma-drug concentration,minimum steady plasma-drug concentration,accumulation coefficient,fluctuation percentage,fluctuation amplitude,and dosage for children and the old could be obtained and the concentration-time curves were able to be drawn from the input data including physical and pathological parameters,dosage (X0) of Theophylline,interval ?,absorption rate constant (Ka),drug clearance rate (CL),absorption fraction (F) and apparent volume of distribution (Vd). CONCLUSION:The method adopted in our study is simple,reliable and intuitive,and it is applicable for the design of the individualized dosage regimen of Theophyllin.

OBJECTIVE: To verify the monitoring effects on irrational physicians'orders by MTP intervention in our hospital.METHODS: The irrational physicians' orders in our hospital between 2005 and 2007 were monitored by PASS using MTP(Monitoring-Training-Plan) intervention model.RESULTS: As compared with before intervention,the black-lamp-precaution-medication's revision rate increased significantly after intervention,which greatly reduced the incidence of potential adverse drug events.CONCLUSION: MTP intervention can arouse physicians' attention on the monitoring results with PASS,increase the black-lamp-precaution-medication revision rate and prevent the occurrence of medication errors.

To observe the relationship between positive rate of β1-adrenergic and AT1 receptors autoantibodies with serum concentration of cystatin C in 371 patients with diabetic nephropathy patients,107 patients with type 2 diabetes,and 47 subjects as healthy control.In patients with diabetic nephropathy,the positive rates of the β1 and AT1 receptors autoantibodies were significantly higher than those in patients with type 2 diabetes and normal controls.The titers of β1 and AT1 receptors autoantibodies in diabetic nephropathy patients with abnormal cystatin C were significantly higher than those with normal cystatin C concentration.These findings suggested that β1 and AT1 receptors autoantibodie may play important roles in the pathogenesis of diabetic nephropathy.

To research piezoelectric immunosensor array for rapid detecting HIV(1+2), piezoelectric immunosensor array matrix was designed. HIV(1+2)C1 antigen was immobilized onto the silver electrodes of quartz-crystal microbalance, which was modified with adsorption and cross-linked method. In the clean air flow and monitoring environment, standard quality control and clinical serum sample were detected. The linear range for the measurement of HIV(1+2) was 0.01-0.2 NCU/ml. The sensitivity, specificity and accuracy of HIV(1+2) piezoelectric protein sensor array were 91.7%, 93.3% and 92.7% respectively.
Biosensing Techniques ; instrumentation ; methods ; Electrodes ; HIV ; isolation & purification ; HIV Antibodies ; blood ; Humans ; Immunoassay ; methods ; Protein Array Analysis ; instrumentation ; methods ; Quartz ; Reproducibility of Results ; Sensitivity and Specificity