Objective To investigate the relationship between serum growth hormone, C-peptide, blood lipids levels, blood glu-cose, hypertension and type 2 diabetes nephropathy. Methods 82 type 2 diabetes (including 40 without nephropathy and 42 with nephropa-thy) and 39 healthy objects were enrolled. BG,GH,C-P,HbAlc,TC,TG,LDL-C and HDL-C were detected. Results The results showed that the values of blood glucose in each time-phase and HbAlc in both type 2 diabetes groups were significantly higher than that in healthy objects. In type 2 diabetes nephropathy group, the serum levels HbAlc, FGH, TC, TG, LDL-C, systolic blood pressure and diastolic blood pressure were significantly higher than that without nephropathy and those healthy objects(P<0.01). C-P (Oh)and C-P (2h)in type 2 di-abetes nephropathy group was significantly lower than that without nephropathy and those healthy objects(P<0.01). In groups patients of type 2 diabetes nephropathy, the disease duration had significantly longer than patients without nephropathy (P<0.01). The results of cor-related analysis with Pearson showed that HbAlc was significantly positive correlated with FGH(r=0.912, P<0.01), HbAlc was signifi-cantly negatively correlated with C-P(0h)(r=-0.803, P<0.01)and HbAlc was significantly negatively correlated with C-P(2h)(r=-0.771, P<0.01). FGH was significantly positive correlated with TC (r=0.413, P<0.05). Conclusion These results suggested that type 2 diabetes nephropathy has persistent elevated levels of blood glucose and disorder of lipid metabolism. The elevated levels of FGH, hy-pertension and islet B cell secretion function deficiency are important risk factors for type 2 diabetes nephropathy.

Objective: To analyse the antinociceptive effect of red nucleus (RN) and its role in the antinociceptive effect of muscle spindle afferents. Methods: The single units of RN or wide dynamic range (WDR) neuron in the spinal cord dorsal horn were extracelluarly recorded. The effects of RN stimulation on nociceptive responses (C-fibers-evoked responses, C-responses) of WDR neurons were observed. The influence of muscle spindle afferents elicited by intravenous administration of succinylcholine (Sch) on the spontaneous discharge of RN neurons and on C-responses of WDR neurons were observed. The effect of muscle spindle afferents on C-responses of WDR neurons after unilateral lesions of RN was also observed. Results: Electrical stimulation of the RN produced a significantly inhibitory effect on the nociceptive responses of WDR neurons. RN neurons were excited by muscle spindle afferents. Muscle spindle afferents significantly inhibited C-response of WDR neurons and this inhibitory effect was reduced by lesions of RN. Conclusion: RN neurons have a significant antinociceptive effect and might be involved in the antinociceptive effects elicited by muscle spindle afferents.

Guidelines as Topic ; Head and Neck Neoplasms ; Humans

OBJECTIVE:To establish the quality standard for Prostatitis capsules. METHODS:TLC method was performed to qualitatively identify Pseudostellaria heterophylla,Acortw tatarinowii,Sargentodoxa cuneata,Rubia cordifolia and Vaccaria segeta-lis in the preparation. HPLC method was adopted to determine the content of leonurine in the preparation. The determination was performed on Agilent Eclipse XDB-C18 column with mobile phase consisted of methanol-0.025 mol/L potassium dihydrogen phos-phate(pH adjusted to 2.5)(24 : 76,V/V)with phosphoric acidat the flow rate of 1.0 mL/min. The detection wavelength was set at 277 nm,and column temperature was 30 ℃. The sample size was 10 μL. RESULTS:The TLC spots of P. heterophylla,A. tatari-nowii,S. cuneate,R. cordifolia,and V. segetalis were clear and well-separated without interference from negative control. The lin-ear range of leonurine were 4.05-81.00 μg/mL(r=0.9999). RSDs of precision,stability and reproducibility tests were all lower than 2.0%. The recovery was 98.47%-103.83%(RSD=2.04%,n=9). CONCLUSIONS:Established standard can be used for quali-ty control of Prostatitis capsules.

OBJECTIVE:To establish a HPLC method for the determination of 5-fluorouracil in human plasma METHODS:The plasma samples were extracted with ethyl acetate-isopropanol(85∶15,V/V)following precipitation of plasma proteins with ammonium sulfate The solvent was evaporated to dryness under a stream of nitrogen The dry extract was dissolved in mobile phase and then injected into the Diamonsil C18 column(150mm?4 6mm,5?m)and 0 01mol/L KH2 PO4(pH5 5) was taken as mobile phase The flow rate was 1 5ml/min,UV detection wavelength was 267nm The internal standard was 5-bromouracil RESULTS:The minimal detectable drug concentration in plasma was 0 025?g/ml The calibration curve was linear over a range from 0 3?g/ml to 10?g/ml The intra-day RSD≤5 0%(n=5) and the inter-day RSD≤11 5%(n=5) CONCLUSION:The method can be used for studying the pharmacokinetics and bioavailability of 5-fluorouracil

Objective To study the level changes and correlation of homocysteine (Hcy) ,high-sensitivity C-reactive protein(hs-CRP) ,cystatin C(Cys-C) and plasma fibrinogen(Fib) in the patients with acute cerebral infarction (ACI) .Methods The fasting blood samples were collected from 178 cases of ACI(ACI group) and 93 healthy individuals blood samples (control group) .The lev-els of serum Hcy ,hs-CRP and Cys-C were detected by the BECKMAN AU-680 fully automatic biochemical analyzer and plasma Fib was determined by the RAC-100 fully automatic coagulometer .Results The levels of serum Hcy ,hs-CRP ,Cys-C and plasma Fib in the ACI group were significantly increased compared with the control group (P<0 .05) .There was significantly positive correlation between Hcy with hs-CRP and Cys-C in the ACI group(r=0 .326 ,0 .361 ,P<0 .05) ,but there was no significant correlation be-tween Hcy and Fib ;there was significantly positive correlation between hs-CRP with Cys-C and Fib(r=0 .365 ,0 .421 ,P<0 .05);the same significant positive correlation also existed between Cys-C and Fib (r=0 .447 ,P<0 .05) .The positive rate of the joint de-tection of Hcy ,hs-CRP ,Cys-C and Fib was 93 .8 % ,which was obviously higher than that of the single indicator detection (P<0 .05) .Conclusion Cys-C ,hs-CRP ,Fib and Hcy participate in the occurrence and development process of ACI ,their joint detection has the important clinical significance for the prevention ,early diagnosis and treatment of ACI .

We examined P53 mutation and invasion front grading (IFG) in 30 cases of oral squamous cell carcinomas (OSCCs). The association of P53 mutation and IFG scores with clinicopathological parameters was evaluated. P53 mutation existed in exon 5-8 in 15 out of the 30 OSCCs (50%). The incidence of P53 mutation was not associated with age, gender, N value and TNM stage. However, there was a significant correlation between P53 mutation and T value (P=0.046). There were no statistically significant correlations among the clinicopathological parameters and IFG. Interestingly, The IFG score in OSCCs with P53 mutation was significantly higher than that in OSCCs without P53 mutation (P<0.001). These results suggest that the high incidence of P53 mutation is a major mechanism of OSCC carcinogenesis. The presence of P53 mutation indicates the most anaplastic fields in the invasive areas of the tumors, which may predict poor prognosis for the patients.

OBJECTIVE To develop a new rapid method of real time fluorescence quantitative Polymerase chain reaction(PCR) to detect Polyoma virus BK(BKV) with high sensitivity,specificity,stability and lower price using the self-quenched probe.METHODS DNA segment of BKV was cloned into the vector pGEM-11Zf.The recombinant vector pGEM-11Zf-BK was used as standard template.The self quenched probe was designed according to the cloned gene sequence.The PCR reaction system was optimized and the method established was evaluated.RESULTS Restriction maps showed that the structure of recombinant plasmid pGEM-11Zf-BK was the same as expected.Methodology analysis suggested that self-quenched probe fluorescent quantitative PCR detective method of BKV be successfully established with high sensitivity,specificity and accuracy.CONCLUSIONS The self-quenched probe fluorescence quantitative PCR detective method for BKV has been developed successfully with high sensitivity,specificity and accuracy.

0.05). The operation time, blood loss, ambulation time, early complication, medical diseases and restored function after operation, death rate within 1year after operation in prosthetic replacement group were superior over the internal fixation group (P

【Objective】To determine the content and dissolution of two imported levothyroxine sodium tablets.【Method】The content of levothyroxine sodium was assayed on a Hypersil BDS C18 column with a mobile phase consisting of methanol-0.85% phosphoric acid (60∶40) at a flow rate of 1.5 mL/min and detected at 225 nm.The study on dissolution was conducted according to the method Ⅱ of dissolution apparatus in USP(23).【Results】The average content of two formulations was 107.74% and 99.72%,respectively.The value of T50,Td and m of two tablets differed significantly (P<0.01).【Conclusion】There was a significant dissolution difference between two levothyroxine sodium tablets.