Objective To explore the suitable type of macroporous adsorbent resin to purity swertiaman from Swertia pesudochinensis Hara., and determine the parameters and conditions for its purification procedures. Method Purification effect of 8 types of macroporous resins used to purify the Swertia pesudochinensis Hara. were inspected, with the content of swertiaman as index. Result HPD-100 type resin showed better effect than others, it had optimum adsorption and elution parameters with its dynamic saturated adsorption ratio was 70.48 mg/g. After eluted with 2 BV of distilled water, 4 BV 30% ethanol and collected, the content of swertiaman in the spray dried powder was 52.29%. Conclusion HPD-100 types macroporous resin showed a better comprehensive adsorption property and can be used to enrich and purify the swertiaman included active fraction of iridoid glycosides for industrialization.

Aim To explore the possible protective effect of ginsenoside Rg1 on oligomeric Aβ1-42 induced apoptosis and its possible mechanism. Methods The damage was induced by oligomeric Aβ1-42 in primary cortical neurons. Cells were incubated in the absence or presence of Aβ, or co-incubated in sp600125 with Aβ, or pre-incubated in ginsenoside Rg1 then co-incu-bated in Aβ. The p-JNK, JNK, caspase-3 activity and TUNEL-positive cells were detected. Results In Aβ1-42 treated group, the ratio of p-JNK/JNK level was increased more than that in non-treated group for 15 min. However, in neurons preincubated with (2. 5, 5, 10 μmol·L-1 ) ginsenoside Rg1 and then co-incuba-ted with 5 μmol·L-1 oligomeric Aβ1-42 , the p-JNK/JNK ratio, caspase-3 activity and TUNEL positive neu-rons were significantly decreased compared with those of Aβ1-42 treated group. Conclusion Ginsenoside Rg1 can attenuate the oligomeric Aβ1-42-induced apop-tosis by JNK pathway.

Objective To summarize the clinical characteristics and management of eosinophilic esophagitis (EoE) in China and improve the recognition of clinical doctor for this disease.Methods Electronic database was searched from 1993 to 2012 for case reports of EoE in Chinese patients.Data were enrolled according to the admission criterion,which included relatively complete medical records and cases confirmed by endoscopic biopsy and/or operation pathology.Results Data of 38 patients with EoE from 6 studies were included and analyzed.There were 24 males and 14 females.The age of onset was (47.2 ± 10.9)years.The process of the disease was (1.5 ± 1.8) years.The main symptoms included dysphagia (24/38,63％) and retrostemal pain (22/38,58％).Total 19 patients (83％,19/23) had allergy history and 20 patients (80％,20/25) had elevated blood eosinophil count.Lesions located at the mid-inferior esophagus mainly.Endoscopic manifestation included hyperaemia,erosion and fragile mucosa,and others such as mucosal nodular,ulcer,plaque and white exudates (18/38,47％).Eosinophil count in esophageal mucosa was (45.8 ± 34.1) numbers/HPF.Main treatment included corticosteroid and acid inhibitory medicine.Conclusions EoE is rare in Chinese people.EoE is more common in middle-aged males with chronic onset.Dysphagia and retrosternal pain is the common symptoms.Endoscopy and biopsy pathology are the methods for definition diagnosis.Corticosteroid and acid inhibitory medicine are the main treatment.

Objective To investigate the possible effect of ginsenoside Rg1 and oligo Aβ1-42 on PKA/CREB pathway.Methods The damage was induced by oligomeric Aβ1-42 in primary cortical neuron.Neurons were incubated with or without glutamate,or incubated in Aβ,or pre-incubated in Rg1 and then co-incubated in Aβ.The proteins of p-CREB,t-CREB,PKA Ⅱ α and BDNF were detected by Western blot.Results After the treatment with Oligo Aβ1-42 for 2 h,the p-CREB/t-CREB level induced by glutamate was obviously lower (P＜ 0.001).However,in neurons pre incubatedwith 2.5,5.0,10.0 μmol/L of ginsenoside Rg1 and then co-incubated with 5μmol/L of oligo Aβ1-42,the p-CREB/t-CREB induced by glutamate was significantly increased as compared with that of Aβ1-42 group (P＜0.05).Upon Aβ1-42 exposure for 2 h,cortical neurons showed a statistically significant increase in PKA Ⅱ α as compared to the control group (P ＜ 0.001).Pre-treatmentwith varying doses of ginsenoside Rg1 (2.5,5,10μmol/L) showed a decrease in PKA Ⅱ α as compared to neurons treated with Aβ1-42 alone for 2 h (P＜0.001).Furthermore,BDNF level significantly increased in Rgl-pretreated cells as compared to cells treated with Aβ1-42 alone for 24h (P＜0.05).Conclusions Ginsenoside Rg1 attenuates the oligo Aβ142 inhibition of PKA/CREB pathway.

A liquid chromatography-tandem mass spectrometry (LC-MS/MS) method was developed and validated for the determination of butoconazole in human plasma. Human plasma samples of 0.2 μL were pretreated by a single step protein precipitation procedure and analyzed using a high performance liquid chromatography (HPLC) electrospray tandem mass spectrometer system. The compounds were eluted isocratically on an Inertsil ODS-SP column (100 mm×2.1 mm, 3 μm), ionized using a positive ion atmospheric pressure electrospray ionization source and analyzed using multiple reaction monitoring (MRM) mode. The ion transitions monitored were m/z 412.8→165.1 for butoconazole and m/z 453.4→230.3 for the internal standard. The chromatographic run time was 3.5 min per injection, with retention time of 2.47 min and 2.15 min for butoconazole and repaglinide, respectively. The method was validated to be linear over the range of 20 to 8000 pg/mL (r>0.999) by using a weighted (1/x(2)) quadratic regression. The mean recovery rate was more than 86.7%, and the intra- and inter-day precision of the quality control samples (QCs) was less than 8.3% and the accuracy ranged from 96.0% to 110.2%, which indicated that the quantitative method was reliable and accurate. The method is simple, rapid, and has been applied successfully to a pharmacokinetics study of butoconazole nitrate suppositories in healthy Chinese females.

Objective To assess the value of contrast-enhanced ultrasonography(CEUS)in evaluating the therapeutic efficacy of uterine leiomyoma treated by radiofrequency ablation(RFA)and to discuss the value of its application.Methods Forty-four patients which were diagnosed as uterine leiomyomas by ultrasonic guidance needle puncture biopsy preoperation were examined by CEUS before and one week after RFA treatment respectively,and the patho-results were got again after the surgery.Routine ultrasonography was performed in 1,3,6,12 months after the treatment to compare the volume change of uterine leiomyomas with the change of the clinical symptoms.Results After the treatment,CEUS showed that the contrast agent didn't appear in thirty-five patients'uterine leiomyomas and the nonperfusion regions matched the size of the uterine leiomyomas completely.The contrast agent enhanced on the edge of the uterine leiomyomas in nine,the patho-results confirmed that the nonperfusion regions of the contrast agent were necrosis tissues and the marginal local enhancement regions were incomplete necrosis.Three month after RFA treatment,the uterine leiomyomas began to shrink,which showed obviously in 6 months after the treatment.There were significant differences in the parameters before and after the treatment(P＜0.05).Clinical symptoms improved obviously in thirty-five patients(90%)after the treatment.Conclusions RFA is an effective minimally invasive surgery of the uterine leiomyoma.CEUS can identify the treatment range and the remaining tissues.It has significant value in guiding the supplementary treatment.

Objective To explore the ultrasound performance and related factors on the role of normal living rabbit's liver by laser ablation. Methods The rabbit's liver tissue were ablated by Echolaser integrated laser interventional ultrasound system, and the necrosis of the lesion and performance of pathology and anatomy were observed. Results The outline of the lesion was ellipse like. The two-dimensional US showed regular hyperecho area in the center, mild strong echo in the peripheral and mild attenuation backward. Contrast enhanced ultrasound (CEUS) showed a filling defect of contrast media in the ablated area. After dissection, the center of the lesion was slag-like carbon, the peripheral was necrosis area; HE staining showed: the center of the lesion was cavity like and dye-free,peripheral area was irregular red staining, the surrounding area was infiltrative inflammatory cells. Different power and time leaded to differences of the ablative effect and lesion size:the more power and time,the bigger of the ablative size. The ablative effect and lesion size was stable in 3 W 10 min and 5 W 6 min groups and caused the complete necrosis of the zone, there existed statistical differences among the two groups. Conclusions Laser ablation can cause fast, precise, effective and safe necrosis of the liver tissue, and the more power and time, the bigger of the ablative size.

Objective To determine the incidence, clinical manifestation and part of lymphokines which represent the balance of Th1 and Th2 in the role of the immunologic mechanisms for IRIS(immune restoration inflammatory syndromes)in patients initiating HAART(Highly Active Antiretroviral Therapy).Methods A prospective study of all patients initiating HAART was performed. A period of six months tracking initiating HAART was performed. The incidence of IRIS, time of occurrence and clinical disease spectrum were recorded. The main T lymphokines including IL-2, INF-γ, IL-4, IL-10 which on behalf of the balance of Th1 and Th2 were detected. To explore the immunopathologic mechanisms for IRIS, the levels of T lymphokines at pre-HAART, initiating HAART for 1 month, 3months and 6 months were compared in IRIS group and non-IRIS group, healthy group. Results A total of 212 patients were enrolled in this study. 59 patients were diagnosed as IRIS at a median of 21 days after HAART initiation (QR 19 days).The main disease spectrum included tuberculosis, herpes virus infections, pneumocystis jirovecii pneumonia. No matter in the IRIS group or non-IRIS group, the main lymphokines baseline of IL-2, INF-γ reduced and IL-4, IL-10 increased before HAART compared to healthy group (P ＜ 0. 05), which had the tendency to restore balance relations initiating HAART. The lymphokines levels had significant difference between baseline and 6 months initiating HAART (P ＜ 0. 05). The changed levels of lymphokines between IRIS group and non-IRIS group before HAART had significant difference compared to healthy group. IL-2, INF-γ increased level[(11.68 ± 2. 89) pg/ml vs (8.52 ±2.26) pg/ml; (22. 19 ± 6. 22) pg/ml vs (18.34 ±5. 35) pg/ml] and IL-10 decreased level [(19. 21 ± 4. 03) pg/ml vs (23. 19 ± 5.92) pg/ml] had significant difference between IRIS group and non-IRIS group initiating HAART I month(P ＜0. 05). Conclusions The incidence of IRIS during 6 months initiating HAART in HIV/AIDS was 27. 8%, IRIS usually occurred in 1 month initiating HAART. The most common disease spectrum was infectious disease, including tuberculosis and herpes virus infection. Lymphokine of Th1 and Th2 existed unbalance in IRIS group and non-IRIS group before HAART. The unbalance tendency in IRIS group was more obvious. All lymphokines had the trend to recover balance. IL-2, INF-γ significantly increased and IL-10 significantly decreased, which might involve the occurrence of the IRIS.

ObjectiveTo investigate the treatment of Mirizzi syndrome (MS) by ERCP、laparoscopy and choledochoscopy. MethodsIn this study 12 cases were confirmed intraoperatively as with MS from July 2005 to June 2009. Patients were treated by ERCP,laparoscopy and choledochoscopy according to the Csendes Classification. ResultThere were 7 MS patients complicating common bile duct stones among all 12 MS cases.There were 8 cases of Type Ⅰ Csendes MS,3 cases of Type Ⅱ and 1case of Type Ⅲ.11cases were treated by the ERCP、laparoscopy and choledochoscope.4 cases was treated by primary closure of common bile duct in laparoscopy,all the patients were cured.The case of type Ⅲ with T tube placed for stone caused bile duct injury had no stricture of the common bile duct as demonstrated by postoperative follow-up cholangiography.ConclusionsERCP,laparoscopy and choledochoscopy are effective for the treatment of Mirizzi syndrome.

Objective To investigate the efficacy of combined application of laparoscope and multiple endoscopes for the treatment of extra-hepatic bile duct stones.Methods The clinical data of 3780 patients with extra-hepatic bile duct stones who were admitted to the First Hospital of Lanzhou University from March 1998 to June 2010 were retrospectively analyzed.According to the condition of bile duct stones,laparoscope,choledochoscope and duodenoscope were applied separately or combinately.All patients were divided into A,B and C groups.Patients in group A were treated by laparoseopy,choledochoscopy or duodenoscopy;patients in group B were treated by choledochoscopy+duodenoscopy.duodenoscopy+laparoscopy or laparoscopy+choledochoscopy;patients in group C were treated by laparoscopy+duodenoscopy+choledochoscopy.The efficacies of different treatment approaches were analyzed by comparing the results of imaging examination and follow-up.Results The curative rate and complication rate of the group A were 89.54%(1276/1425)and 6.73%(86/1276),respectively.Of the 149 patients in the group A who were failed in the treatment,83 patients were transferred to the group B,and 66 patients were transferred to the group C.The curative rate and complication rate of the group B(including 83 patients transferred from the group A)were 95.93%(1719/1792)and 4.07%(70/1719),respectively,and 73 patients who were failed in the treatment were transferred to the group C.The curative rate and complication rate of the group C(including 139 patients transferred from the group C)were 99.75%(783/785)and 0.26% (2/783),respectively,and 2 patients who were failed in the treatment received open surgery.Conclusion Combined application of laparoscope and endoscopes could raise the success rate of stone clearance and decrease the postoperative complications.