Astrocytes play many important roles in the nervous system.In recent years,researchers are paying attention to the roles of astrocytes in the process of stroke.This article mainly reviews the biological functions of astrocytes and the gene expression changes of astrocytes after ischemic stroke,thereby providing new potential therapeutic targets for the treatment of ischemic stroke.

Objective To estabilish a HPLC method for the determination of Geniposide in Jigucao Capsule. Methods The column was Lichrospher-C18(5 ?m,4.6 mm?250 mm). The determination was carried out with acetonitrile-0.1% phosphoric acid(10∶90) as the mobile phase,a flow rate of 1.0 mL/min and detected at 238 nm,and temperature of the column was 35 ℃. Results The calibration curve showed good linearity in the range of 0.14～1.68 ?g,Y =1 552.15X-6.42,r=0.999 9. The mean recovery was 97.53%(RSD=1.24%,n =6). Conclusion The method is accurate,reliable,and can be used for quality control of the preparation.

ObjectiveTo summarize and investigate the occurrence,clinical features and treatment of cesarean scar pregnancy.Methods33 cases of cesarean scar pregnancy were retrospectively analyzed.Results10 cases of vaginal massive hemorrhage after uterine curettage,9 cases of subtotal hysterectomy,1 case was cured by MTX treatment,13 cases were cured by conservative treatment of uterine curettage after chemotherapy treatment,10 cases of successful uterus-saving by excision of lesion and uterine repair.ConclusionTransvaginal sonography was an important method in diagnosis of cesarean scar pregnancy and,the key to success was to select the appropriate individual treatment according to classification by transvaginal sonography.

Objective To investigate the association between renin-like activity (RA) and angiotensin Ⅱ (AⅡ) and the ovarian hyperstimulation syndrome (OHSS). Methods Blood samples were taken from 42 patients undergoing in vitro fertilization (IVF). According to the ovarian stimulating response, the patients were divided into 4 groups: group Ⅰ, low responders, 7 cases; group Ⅱ, moderate responders, 8 cases; group Ⅲa high responders without using albumin, 7 cases, group Ⅲb, high responders with albumin, 10 cases; group Ⅳ, severe and moderate OHSS, 10 cases. 5 patients for intrauterin insemination with natural cycle as control. Follicular fluid (FF) was collected at oocyte retrieval from 28 IVF patients (including 7 OHSS patients). Fluid from ascites and hydrothorax was obtained from 3 OHSS patients, and peritoneal fluid obtained from 5 infertility patients by laparoscopy and ascitic fluid obtained from 6 ovarian carcinoma patients served as control. RA and AⅡ levels were measured by radioimmunoassay. Results plasma RA and AⅡ levels at mid-luteal phase from OHSS patients [(19.9?19.0)?g?L -1 ?h -1 and (397.0?378.2) ng/L] were significantly higher than those from the other patients ( P

Osteogenic differentiation of mesenchymal stem cells (MSCs) is an important link of bone metabolism and bone repair, the mechanism of which is usually complicated. Recent studies have found that BMP, FGF, Wnt, Hedgehog, NELL1, IGF, Notch and othersignaling molecules are involved in the regulation of osteogenic differentiation of MSCs. These signaling molecules themselves have been shown to have a strong ability to promote osteogenic differentiation. They can activate the corresponding receptors by specific ligands, thus initiating the specific signal transduction pathways in the cell, and finally promote the transcription and translation of the genes related to bone formation. Furthermore, all the signaling pathways form a complex network which regulates and influences the osteogenic differentiation ofMSCs. Further researches on the mechanism of the interaction of these signaling pathways is of great significance in promoting the development of bone tissue engineering and the treatment of bone metabolic diseases.

TrkB was designated as the functional receptor of br ain derived neurotrophic factor． In these study, we investigated the distributi on of trkB-like immunoreactivity(trkB-IR) in spinal cord of adult cats using spe cific antiserum for trkB by immunohistochemistry ABC method． The results were a s following: trkB-IR was mainly distributed in neurons of spinal cord including ventrolateral horn, intermedius are and dorsal horn． 　　 The subcellular localization of positiveproduct was mainly in cytoplasm． Our results provided morphological evidence on the distribution of trkB in spinal cord of adult cats． It indicated the role o f trkB involve in physiological function of spinal cord of adult cat．

Objective To survey the status quo of cervical cancer and cervical precancerous lesion among married women age 35 to 55 in Taishan City,Province and to investigate precautions against cervical cancer.Methods By the request of the government,free cervical cancer screening was carried out from 2010 to 2011,26 879 women in 2010 and 23 197 women in 2011 completed the questionnaire and were checked by gynecological examination and thinprep cytologic test(TCT) voluntarily,and women screened positive by TCT accepted the colposcopy-guided biopsy.Results In 2010,2491 cases of screening positive by TCT,accoanted for 9.47％ ;665 cases of cervical intraepithelial neoplasia ( CIN ),incidence rate was 2.47％,35 cases of invasive cervical cancer ( ICC ),incidence rate was 0.13 ％.In 2011,2038 cases of screening positive by TCT,accounted for 8.78 ％ ;314 cases of cervical intraepithelial neoplasia( CIN ),incidence rate was 1.35％,16 cases of ICC,incidence rate was 0.07％.Conclusion Carrying out cervical cancer screening,could detect CIN in time,give treatment of precancerous lesions as soon as possible and prevent cervical cancer.

Objective To explore the application value of high frequency probes in ultrasonic diagnosis of acute appendicitis.Methods Using high frequency probe to detect 356 patients with right lower quadrant abdominal ultrasound,and the results were analyzed.281 cases were confirmed by operation and pathology.Results 240 cases of 356 patients were detected low frequency transducer,and the detection rate was 67.4％.Application of high frequency probe were detected in 322 cases,and the detection rate was 90.4％.Pathological progress of appendicitis with appendicitis,display rates have increased,there was a significant correlation between the two.Conclusion The use of high frequency color ultrasound imaging for suspected acute appendicitis in patients has definite diagnosis and differential diagnosis.

Objective To explore the clinical efficacy of intranasal endoscopic turbinate fracture relocation press in treatment of chronic hypertrophic rhinitis.Methods According to digital table,66 patients with chronic hypertrophic rhinitis were randomly divided into two groups.33 cases in the observation group were treated with endoscopic sinus lateral fracture crush,33 patients in the control group received inferior turbinate submucosal injection of sclerosing treatment.The clinical effect was compared between the two groups.Results The total effective rate of the observation group was 93.9％,which was significantly higher than 72.7％ of the control group (x2 =6.23,P ＜0.05).The average nasal recovery time was (35 ± 12)d in the observation group,which was significantly shorter than (64 ± 21) d in the control group (t =1.74,P ＜ 0.05).The SCT test results had statistically significant differences between the two groups before treatment and 3 months after treatment (t =3.21,2.85,all P ＜0.05).After treatment,the difference was statistically significant between the two groups (t =2.13,P ＜ 0.05).Conclusion Endoscopic turbinate fracture relocation squeezing surgery in the treatment of chronic hypertrophic rhinitis was satisfied.

OBJECTIVE:To provide reference for curriculum setting for postgraduates majoring in Science of Chinese materia medica. METHODS:The curriculum setting for postgraduates majoring in Science of Chinese materia medica was comprehensively analyzed from the aspects of the regional differences and unique differences of curriculum setting and correlation of curriculum set-ting combined with professional interest of students,actual needs of the professional field and relevant circumstances of industry de-velopment. RESULTS & CONCLUSIONS:The curriculum setting exists regional differences and unique differences. It should show positive correlation with professional interest of students,actual needs of the professional field and relevant circumstances of industry development. It needs further exploration and improvement in the construction of curriculum to make it more scientific and systematic,and the curriculum contents should be able to match the training mechanism and pattern for the cultivation of postgradu-ates .