OBJECTIVE:To determine the concentration of ozagrel in human plasma by RP-HPLC.METHODS:The sample separation was performed on a SinoChrom OPS-AP column.The mobile phase consisted of 0.025 mol?L-1 potassium dihydrogen phosphate buffer solution-acetonitrile(85∶15) with a flow rate of 0.8 mL?min-1 and a detection wavelength of 274 nm.The internal standard was levodropropizine.RESULTS:The linear range of ozagrel was 0.7～21.3 ?g?mL-1,(r=0.999 6).The extraction recovery of ozagrel was 83.78%～89.14% and the methodological recovery of it was 101.95%～106.68%.The intra-day RSD and inter-day RSD were 1.33%～3.27% and 2.72%～5.97%,respectively.CONCLUSION:This method is simple,rapid,accurate and reproducible,and it is applicable for the pharmacokinetic study of ozagrel in human plasma.

neoplasia.

OBJECTIVETo verify the clinical efficacy on post-stroke dysphagia treated with acupuncture at Lianquan (CV 23).

METHODSOne hundred and eighty patients were randomized into an acupuncture A group, an acupuncture B group and a rehabilitation group, 60 cases in each one. On the basis of the conventional medication, in the acupuncture A group, acupuncture was applied at Lianquan (CV 23); in the acupuncture B group, acupuncture was applied at Hegu (LI 4) and Neiguan (PC 6) and in the rehabilitation group, the swallowing rehabilitation training was adopted. The treatment was given once a day, 5 times a week, and the 4 weeks of treatment was required in all of the groups. The national institute of health stroke scale (NIHSS) and TV X-ray fluoroscope swallowing scale (VFSS) were used to evaluate neurologic deficit and swallowing function before and after treatment in the patients of each group. The morbidity of pneumonia and clinical efficacy were compared among the groups.

RESULTSThe scores of NIHSS and VFSS were improved apparently after treatment in the patients of the three groups (all P < 0.05) and the results in the acupuncture A group were superior to those in the other two groups (all P < 0.05). The morbidity of pneumonia in the acupuncture A group was lower than that in the acupuncture B group and the rehabilitation group [3.3% (2/60) vs 6.7% (4/60), 8.3% (5/60), both P < 0.05]. The effective rate in the acupuncture A group was better than that in either of the other two groups [95.0% (57/60) vs 81.7% (49/ 60), 75.0% (45/60), both P < 0.05].

CONCLUSIONOn the basis of the conventional medication, acupuncture at Lianquan (CV 23) effectively improves the swallowing function, relieves neurological deficit and reduces the morbidity of pneumonia in the patients of post-stroke dysphagia.

Acupuncture Therapy ; Aged ; Deglutition ; Deglutition Disorders ; etiology ; physiopathology ; therapy ; Female ; Humans ; Male ; Middle Aged ; Quality of Life ; Stroke ; complications ; Treatment Outcome

Dental Implantation ; Humans

Astragalus Plant ; Cell Differentiation ; drug effects ; Cell Division ; drug effects ; Codonopsis ; Drugs, Chinese Herbal ; pharmacology ; Hematopoietic Stem Cells ; cytology ; drug effects

Objective To establish the method to determine the content of berberine in Double Yellow Antiinflammatory Tablets. Methods Using HPLC, with Diamonnsil C18 (4.6 mm?250 mm, 5 ?m) as column, acetonitrile-0.05 mol/L potassium dihydrogen phosphate (35∶65, phosphate regulation pH value to 3.0) as mobile phase, detection wavelength was at 345 nm, flow rate was 0.8 mL/min, and column temperature was 30 ℃. Results In berberine range of 0.040 7～0.447 9 ?g, the scope and content of the sample peak area had a good linear relationship, reproducibility of RSD=0.59% (n=5), and the average recovery rate was 96.71% and RSD=0.37% (n=5). Conclusion This method is stable, reliable, with high sensitivity and good reproducibility, and easy to put into practice, so it can be used for quality control of Double Yellow Antiinflammatory Tablets.

Objective To establish the method to detect the expression of apolipoprotein E gene in human adipose cells. Methods Apolipoprotein E gene expression was determined by competitive reverse transcription-PCR in adipose cells of healthy children. Results Apolipoprotein E gene expressed in the adipose cells of healthy children. The mean expression quantity of apolipoprotein E mRNA in adipose cells was (0.41?0.12 ) in healthy children. Conclusions Competitive reverse transcription-PCR is a rapid, simple, sensitive and accurate method to analyze expression of apolipoprotein E gene.

MBP was isolated and purified from bovin spinal cord as described by Deibler. A sensitive and specific RIA was used for quantitatiag the lavel of MBP in tie CSF samples which was collected from 106, patients with various neurological diseases. In the funetional headache group, the mean level of MBP in CSF was 3.0 ? 2.24ng/ml, so the upper control level of CSF MBP was 7.48 ng/ml (X+2SD). The mean level of MBP in CSF of 33 patients with MS was 21.98?11.82 ng/ml. Thirty-one cases had elevated level of CSF MBP (93.94%). The CSF MBP level of MS patients was significantly higher than the level of patients with sporadic encephalitis, other neurological diseases, and headache (p

Objective To design a system of conductivity tomography using focused magnetic fields for data acquisition. Method A frequency modulation detection circuit with array of sources was employed to implement multi-frequency measurement. In the circuit, a specially designed coil with good focusing property was used to improve spatial resolution of the image. Acquired data of frequency changes from the detector was stored in the memory operated by a ping-pang pattern, then the data was transmitted into computer by serial communication interface whose transmitting rate reached 115. 2 KHz. Result Frequency stability of the signal source in the system reached 0. 2%; the total harmonic distortion of the signal was less than -43 dB; the signal noise ratio of the source was from 58 dB to 62 dB. The storage capacity of memory was 131 072-word by 16- bit. The system has good frequency resolution, and is easy to be analyzed and processed by the software after data acquisition. The conductivity of the computed results agreed with that in the given model. Conclusion The system is effective to detect and reconstruct the conductivity of stratified biological tissue for its high sensitivity.