Objective To investigate the effect of thymosin α1 on immun ologic function and cytokines in the abdominal sepsis patients.and naddiscuss the therapeutic function of thymoin α1 in sepsis.Methods Thirty-eight sepsis patients admitted between May 2006 and May 2007 in the Hospital of Weifang Medical University.Patients were divided into the treatment group(20 cases)and control group(18 cases)randomly.Thymosin α1 was used in the treatment group on the basis of infection controlled.The concentration of cytokines(TNF-α,IL-6,IL-10)and the percent age of CD3,CD4,NK cell were observed.Results The concentrations of TNF-α and IL-6 were increased significantly in bothgoups.But it was more prominently in the control group.The concentration of IL-10 and the percent age of CD3,CD4,NK cell increased more significantly in thymosinod treatment group than those in the control group.Conclusions Thymosincd canmodulate the release of TNF-α,IL-6,IL-10 and mitigate the inflammatory reaction,which may improve the immunologic function.

Objective To examine the correlation between the ultrasonic feature of tibial nerve and the scores of Michi?gan neuropathy screening instrument(MNSI)in type 2 diabetic mellitus (T2DM) and to provide information for early diagno?sis of diabetic peripheral neuropathy(DPN). Methods Based on scores of MNSI, 95 cases of T2DM patients were divided into three different groups:group B(0-2.4 scores), C(2.5-4.4 scores)and D(≥4.5 scores). Ultrasound parameters of group A (n=30) were compared with group B (n=32), group C (n=31) and group D (n=32). These parameters includes nerves′s an?teroposterior dimension, transverse diameter, cross-sectional area and fasciculus echo, thescreen clothstructure, epineuri?um and the demarcation with neighbourhood structures. Correlation of MNSI with ultrasound performance of tibia nerve was also tested. Results Compared with group A, transverse diameter in group B did not show a obvious change, but anteropos?teror dimension, transverse diameter, cross-sectional area in group C, group D all increase.(P < 0.05). Compared with group B,ultrasound alteration were more frequent in group C and group D(P<0.05), but there was no statistical difference on that between group C and group D(P>0.05). There was a positive correlation between the nerves′s anteroposterior di?mension, transverse diameter, cross-sectional area with MNSI, rs were 0.656、0.657 and 0.681 respectively (P<0.05 in all three cases). Conclusion Certain correlation was observed between MNSI and tibial never ultrasonic feature in T2DM pa?tients;the higher MNSI scores , the greater chance of presence of abnormal sonographic features of tibial nerve.

BACKGROUND:Rabbit bone marrow mesenchymal stem cels as a kind of adult stem cels with strong proliferation and multilineage differentiation potential exhibit a tremendous application potential in tissue engineering and biological therapy.
OBJECTIVE:To in vitro culture, proliferate and identify rabbit bone marrow mesenchymal stem cels and to observe cel biological characteristics.
MEHTODS:Bone marrow of rabbits was extracted under sterile conditions to separate bone marrow mesenchymal stem cels using the whole bone marrow adherence method and Percol density gradient centrifugation method. Afterwards, the cels were purified and proliferated using differential adherence method. Morphology and growth pattern of cels were observed under microscope, and expression of cel surface antigen markers was detected by flow cytometry.
RESULTS AND CONCLUSION:Rabbit bone marrow mesenchymal stem cels presented with short adherent time and fast growth. After passage and purification, impurities cel counts were decreased. Primary cels presented with triangular, fusiform and spindly shapes. Passage 5 cels with single shape showed the typical polar swirling growth, and could not express CD34 and CD45, but expressed CD29 and CD44. These findings indicate that the cels cultured using the whole bone marrow adherence method and Percol density gradient centrifugation method possess stem cel characteristics in morphology, surface markers and multilineage differentiation, which have been identified as bone marrow mesenchymal stem cels by flow cytometry.

Objective To investigate the characteristics of postoperative complications and related risk factors in neurosurgery patients. Methods A retrospective study was carried out in neurosurgery patients during anesthesia recovery period from March, 2009 to November, 2013. The recorded complications included respiratory and circulatory system complications, pain, shivering, nausea and vomiting, agitation and delaying recovery. Multivariate logistic regression analysis was performed to screen the risk factors for these complications. Results Da-ta of 13,495 patients were available for analysis. The general incidence was 48.8%. Post-operative complications included post-operative nausea and vomiting (PONV) (14.5%), agitation (13.5%), hypertension (13.4%), arrhythmia (9.3%), shivering (8.9%), pain (5.9%), hypox-emia (2.5%), delayed recovery (1.9%), airway obstruction (1.7%) and hypotension (0.3%). Regression analysis showed that the risk factors for hypoxemia included male,<59 years old and infratentorial tumor (P<0.05);the risk factors for PONV included male, supratentorial tu-mor, infratentorial tumor, cerebrovascular disease, inhalation anesthesia, the use of muscle relaxants antagonism and tramadol (P<0.05);and the risk factors for postoperative restlessness included male, infratentorial tumor and cerebrovascular disease, inhalation anesthesia, the use of muscle relaxants antagonism and no use of patient-controlled analgesia (PCA) pump (P<0.05). Conclusion Patients with different neuro-logical diseases showed different post-operative complications and exhibited different risk factors for these complications. Anesthesiologists should closely monitor patients receiving various neurosurgery and provide timely treatment.

Objective:To observe the inhibitory effect on ?-glucosidase of 10 kinds Chinese herbs and to screen the Chinese herbal medicines which have great inhibitory effect on ?-glycosidase.Methods:The ?-glucosidase was extracted from small intestine of rat.The amount of glucose was measured with produced from substrate of malt sugar.The inhibitory effect of 10 kinds of Chinese herbs on ?-glucosidase was observed by this enzyme reaction system.Then disposable gastric perfused malt sugar(2 g/kg) and the extraction screened at the same time,detected the levels of blood glucose after 60 min.The positive control group is acarbose(ACAR) group.Results:The three kinds Chinese herbs(Chishao,Shanzhuyu and Sangbaipi) showed very good inhibitory activities,and they showed obviously concentration-effect curve relationship.Among them,the inhibitary activity of Sangbaipi is stronger than Chishao and Shanzhuyu.While the dose of Sangbaipi reached 10mg/mL,the inhibition rate arrived 80%,which effect was equivalet to the dose of 1mg/ml acarbose.The results of postprandial blood glucose in vitro showed us:Sangbaipi,Chishao and Shanzhuyu can inhibit postprandial blood glucose levels in rats that have been disposable gastric perfused malt sugar after 60min(P0.05).Conclusion:The three kinds of Chinese herbs(Chishao,Shanzhuyu and Sangbaipi) can inhibit ?-glucosidase activity obviously in both vitro and vivo.

ABSTRACT:Objective To explore the role of HIF‐1αin the pathogenesis of hepatopulmonary syndrome (HPS) and its relationship with GRP78 .Methods The HPS model in rats was induced by multiple pathogenic factor .The samples were assessed by using Western blotting analysis for HIF‐lα, GRP78 and VEGF164 . The expressions of VEGFR‐2 and CD105 were observed by using immunohistochemical staining .Results The protein level of HIF‐1αwas significantly increased in HPS group at week 8 compared with that at week 4 and 6 groups and corresponding normal control groups .With the development of HPS ,protein level of GRP78 was gradually increased at each time point significantly and reached the highest level at week 8 ;protein level of VEGF164 showed a similar change with GRP78 ,but the peak was at week 6 .Immunohistochemical results showed that the protein expressions of VEGFR‐2 and CD105 were gradually increased in lung tissue as HPS progressed .The protein level of GRP78 was positively correlated with HIF‐1α,VEGF164 ,VEGFR‐2 and CD105 ,respectively (P<0 .05) .Conclusion HIF‐1αis most likely together with GRP78 to play a critical role in promoting pulmonary microvascular remodeling in the pathogenesis of HPS in rats .

Objective To summarize the clinical experience of surgical intervention for cardiac neoplasm in a fetus . Methods A 32-year-old pregnant woman was admitted to our hospital for complaint of fetal cardiac neoplasm .A separated het-erogenic cardiac occupying lesion was identigied at right atrium of the fetus by echocardiography , whose size is 2.85 cm ×2.25 cm, but the pathogenic origin still remained uncertain, maybe originate from ether pericardium or atrium.The annulus of tri-cuspid valve was compressed nearly 50% with the presence of amount of pericardial effusion.The fetal heart rate decreased at some fetal position resulting in the compression to the heart.So an Ex-utero Intrapartum Therapy(EXIT) procedure was per-formed under the supply of placenta at the 32 weeks of pregnancy.Cesarean section was performed with intact umbilicus and fe-tal circulation by obstetricians.Consequently, the median sternotomy of this fetus and pericardiotomy were performed , with 30 ml clear pericardial effusion drained .The tumor was confirmed to be giant right atrial neoplasm after the intraoperative explora-tion.Considering on the high risk of the cardiopulmonary bypass and limited time for EXIT , the giant atrial neoplasm was left alone with delayed sternum closure after the effectively decompression of the heart .The omphalotomy was successfully per-formed after the EXIT surgery.The neoplasm resection and the repair for its defect on right atrium were performed with cardiop-ulmonary bypass 2 days later.Results Convalesce of this mother was quite good after cesarean resetion .Hemodynamics of the premature baby was satisfatory after the resection of right atrial neoplasm which pathological report was benign hemangioma . Conclusion Via multiple disciplines collaboration , EXIT intervention for fetus is feasible and safe under adequate prepara-tion.

OBJECTIVETo explore the effect and mechanism of flavones of buckwheat flower and leaf (FBFL) on lowering blood glucose and improving insulin resistance in type 2 diabetic rats.

METHODSeventy healthy male Wistar rats were used in this trial. Ten of them were selected randomly as normal group; the others were given fat milk by intragastric administration daily, from the 14th day on, low dose tetraoxypyrimidine was added by intraperitoneal injection every other day for three times. Rats with fasting (72 hours after the last injection) blood sugar > or = 16.7 mmol x L(-1) and K(IPT) < 60% of normal group were selected as type 2 diabetic model with insulin resistance, which were randomly divided into 5 groups: model group. LGLT group; low, moderate and high dosage FBFL groups (L-FBFL; M-FBFL; H-FBFL). Every rat was treated accordingly for 4 weeks; then FBG, FFA, INS were detected and ISI was calculated to evaluate the degree of insulin resistance. Liver PTP1B expression was determined by immunohistochemistry method. staining were observed by light microscopy.

RESULTFBFL could dose-dependently inhibit the rising of FBG, FFA, INS, improve the state of insulin resistance and reduce the expression level of liver PTP1B.

CONCLUSIONFBFL could effectively improve insulin resistance in type 2 diabetic rats induced by tetraoxypyrimidine and fat milk and showed dose-dependence relationship.

Animals ; Diabetes Mellitus, Type 2 ; drug therapy ; genetics ; metabolism ; Disease Models, Animal ; Fagopyrum ; chemistry ; Flavones ; administration & dosage ; Flowers ; chemistry ; Gene Expression ; drug effects ; Humans ; Insulin Resistance ; Liver ; drug effects ; metabolism ; Male ; Plant Extracts ; administration & dosage ; Plant Leaves ; chemistry ; Protein Tyrosine Phosphatase, Non-Receptor Type 1 ; genetics ; metabolism ; Random Allocation ; Rats ; Rats, Wistar

Clustered regularly interspaced short palindromic repeats/CRISPR-associated nuclease 9 (CRISPR/Cas9),a cluster of regularly spaced short palindromic repeats,is a natural immune defense system for bacteria and archaea to identify themselves and exogenous invading DNA fragments,protecting them from viruses.In recent years,CRISPR/Cas9 has become a revolutionary gene editing tool.Its specific targeted spot-cutting ability also plays an important role in nucleic acid detection,bacterial typing,etc.,and has shown great application potential in the field of medical testing.Based on the latest researches,this paper reviews the progress of CRISPR/Cas9 application in the new techniques of nucleic acid detection,pathogen typing and bacterial evolution in laboratory medicine,and also summarizes the application prospect of CRISPR technology in the field of laboratory medicine.

Objectives: Two cases who underwent fetal pulmonary valvuloplasty (FPV) for pulmonary atresia with intact ventricular septum (PA-IVS) or critical pulmonary stenosis with intact ventricular septum (CPS-IVS) successfully were reported. The aim of the report was to explore the criteria for case selection, the technical essentials of FPV, and the postpartum outcome of the fetus. Methods: One case with PA-IVS and the other with CPS-IVS were enrolled in September 2016 and February 2017 in Guangdong General Hospital, and both cases were diagnosed with severe right ventricular dysplasia and tricuspid regurgitation by fetal echocardiogram. Parameters of right ventricle development and hemodynamics from echocardiography included tricuspid/mitral annulus (TV/MV), right ventricle/left ventricle long-axis (RV/LV), pulmonary/aortic annulus (PV/AV), tricuspid inflow duration/cardiac cycle, degree of tricuspid regurgitation (TR), blood flow direction of arterial duct and ductus venosus. Multidisciplinary team including the maternal-fetal cardiology, pediatric cardiology, cardiac surgery, obstetrics, neonatology and anesthesiology was summoned to discuss the indications and timing of PFV. Two cases underwent ultrasound-guiding trans-abdominal PFV at the 28 weeks of gestational age. Echocardiography was performed to observe the opening and closing of the pulmonary valve, and to evaluate the development of right ventricle and improvement in hemodynamics every 2-4 weeks until delivery. Results: From the technical perspective, pulmonary balloon valvuloplasty was successfully performed in these two cases. The opening of pulmonary valve improved in these two cases at 2-4 weeks after FPV. However, an obvious restenosis was detected in the first case at 5-8 weeks after FPV. In the first case, the echocardiography parameters including TV/MV, RV/LV, PV/AV and tricuspid inflow duration/cardiac cycle increased from 0.56, 0.42, 0.85,0.26 to 0.59, 0.51, 0.87, 0.32 at 5-8 weeks after FPV, respectively. However, the direction of blood flow through the arterial duct was still reverse. In the second case, TV/MV, RV/LV, PV/AV and tricuspid inflow duration/cardiac cycle ratio increased from 0.70, 0.63, 0.91,0.35 to 0.80, 0.80, 0.97, 0.42 at 5-8 weeks after FPV, respectively. The direction of blood flow through the arterial duct changed to bidirectional. Both fetuses were born alive. The first case underwent pulmonary valve commissurotomy and modified Blalock-Taussig shunt on the 8^th day after delivery and received follow-up for 6 months. The strategy for the next-step therapy was still pending. The second case underwent transcutaneous pulmonary balloon valvuloplasty on the 19^th day after delivery and received follow-up for 3 months. The opening of pulmonary valve improved obviously and the cardiac function was normal in the second case. Conclusions FPV is safe and effective for fetus during the second and third trimester of pregnancy, and FPV is beneficial for the development of fetal ventricle, valve and large artery. In addition, FPV may help to avoid the postnatal surgery for isolated single ventricle, improve fetal heart failure and prevent fetal death.