Objective To investigate the effect of atorvastatin on vascular endothelial cell function and vasoactive substances in essential hypertensive patients without hyperlipemia. Methods Sixty-five essential hypertensive(EH) patients without hyperlipemia were enrolled and randomly divided into atorvastatin group and conventional treatment group(oral taken atorvastatin or placebo once every night in addition of routine antihypertensive drugs).Twenty five healthy subjects were also recruited as control.All cases were followed up for eight weeks.Serum cholesterol,nitric oxide(NO),emdothelin-1(ET-1),vonWillebrand-factor(vWF) levels were determined in each case.Flow-medizted dilation(FMD) was determined by high-resolution ultrasonography before and after eight weeks atorvastatin medication.Results (1)Before treatment,the FMD and NO levels of EH group were significantly lower than those of control group(P＜0.01),while the ET-1 and vWF levels of EH group were significantly higher than those of control group(P＜0.01);(2)In EH patients,the FMD and NO levels significantly increased after treatment and increased even more dramatically in atorvastatin group,when compared to conventional treatment group(Ps＜0.01);(3)In EH patients,the ET-1 and vWF levels significantly decreased after treatment and decreased even more dramatically in atorvastatin group,when compared to conventional treatment group(Ps＜0.01).Conclusion In patients of EH without hyperlipemia,atorvastatin can decrease plasma levels of ET-1,vWF,while increase plasma NO concentration and improve vascular endothelial function.

Objective To explore the clinical effect of neoadjuvant chemo-radiation combined with thoracoscopic and laparoscopic three-incision esophagectomy for esophageal cancer.Methods The retrospective cohort study was conducted.The clinicopathological data of 111 esophageal cancer patients who underwent neoadjuvant chemo-radiation combined with thoracoscopic and laparoscopic three-incision esophagectomy in the Cancer Hospital of Chinese Academy of Medical Sciences between January 2010 and December 2016 were collected.Among 111 patients,68 with interval time between neoadjuvant chemo-radiation and thoracoscopic and laparoscopic three-incision esophagectomy ＜ 8 weeks were allocated into the ＜ 8 weeks group and 43 with interval time between neoadjuvant chemo-radiation and thoracoscopic and laparoscopic three-incision esophagectomy ≥8 weeks were allocated into the ≥8 weeks group.Patients underwent preoperative radiotherapy and chemotherapy with TP regimen,and then underwent selective thoracoscopic and laparoscopic three-incision esophagectomy.Observation indicators:(1) neoadjuvant chemo-radiation situations;(2) surgical and postoperative situations;(3) follow-up.Follow-up using outpatient examination and telephone interview was performed to detect postoperative survival of patients and tumor recurrence or metastasis up to March 2017.Measurement data with normal distribution were represented as (x)±s and comparison between groups was analyzed using the t test.Count data were analyzed using the chi-square test or Fisher exact probability.Comparison of ranked data was done by the nonparametric test.Results (1) Neoadjuvant chemo-radiation situations:all the patients underwent neoadjuvant chemo-radiation,without severe adverse reaction.Number of patients with complete remission based on oncopathology were 34 in the ＜8 weeks group and 15 in the ≥ 8 weeks group,with no statistically significant difference between the 2 groups (x2=2.441,P＞0.05).(2) Surgical and postoperative situations:all the patients underwent successful thoracoscopic and laparoscopic three-incision esophagectomy,with negative surgical margins.Operation time,volume of intraoperative blood loss,number of lymph node dissected,time of postoperative intrathoracic drainagetube removal,time of postoperative neck drainage-tube removal,hoarseness,upper gastrointestinal hemorrhage,anastomotic fistula,respiratory complication,pleural effusion and empyema,cardiovascular complication,incision abnormal healing,death within postoperative 30 days and duration of hospital stay were (354±103)minutes,(400± 76)mL,19±4,(11±4)days,(4.9±1.6)days,5,1,12,3,6,5,8,0,(19± 17) days in the ＜ 8 weeks group and (343±92) minutes,(392±51)mL,19±3,(12±6)days,(4.5±1.0)days,2,0,7,5,3,4,3,2,(18± 11) days in the ≥ 8 weeks group,respectively,with no statistically significant difference between the 2 groups (t =1.080,0.569,0.326,1.223,1.286,x2=0.029,0.035,1.114,0.000,0.000,0.246,t=0.315,P＞ 0.05).(3) Follow-up:90 of 111 patients were followed up for 3-82 months,with a median time of 25 months,including 55 in the ＜8 weeks group and 35 in the ≥8 weeks group.During follow-up,death and tumor recurrence were detected in 9,11 patients in the ＜8 weeks group and 6,11 patients in the ≥ 8 weeks group,respectively.Conclusion Neoadjuvant chemo-radiation combined with thoracoscopic and laparoscopic three-incision esophagectomy is safe and effective,and it doesn't increase the perioperative risks based on preoperative 8-week interval time.

Objective To investigate the effects of ketamine on anoxia-reoxygenation(A/R)induced glutamate release from cerebral cortex neurons.Methods Primary cultured neurons obtained from cerebral cortex of fetal Wistar rats(16-18 d)were randomly divided into 3 groups:Ⅰcontrol group;ⅡA/R group andⅢketamine pretreatment+I/R group.The control group was not subjected to A/R while A/R group was exposed to anoxic air(95% N_2+5% CO_2)for 5 h followed by 24 h reoxygenation.In groupⅢdifferent doses of ketamine were added to the culture media before anoxia and the final ketamine concentrations were 1,20 and 100?mol?L~(-1) respectively.The extracellular glutamate concentration was detected at the end of 24 h reoxygenation.Results The extracellular glutamate concentration was significantly higher after 24 h reoxygenation in A/R group than in control group.Ketamine 20 and 100?mol?L~(-1) significantly inhibited glutamate release from the neurons induced by A/R in a dose-dependent manner.Conclusion Ketamine can inhibit glutamate release from neurons induced by A/R in a dose-dependent manner.

Objective To investigate the dependability between ultrasonic appearances of different degree of acute testicular hemodynamic disorder and contralateral testicular damage.Methods Thirty two white rabbits were randomly divided into 4 groups.Group A-C were subjected to testicular ischemia and color Doppler sonography were continuoully performed in each case.The testes were reperfused when the ultrasonic appearances were as follows:homogeneous appearance with reducing of blood perfusion(group A),increased echogenicity and heterogeneity with little blood perfusion(group B).inhomogeneous appearance with small pieces of low echogenic areas and no blood perfusion(group C).Group D was the control group.Histologic structure changes of contralateral testes were observed after reperfusion for a month.The contralateral testes in all the cases underwent contrast-enhanced ultrasonography(CEUS)before reperfusion of unilateral testes.Results CEUS time-intensity curve of contralateral testes showed no statistical significance between the four groups(P＞0.05).Focal and mild pathological and ultrastructural changes were observed in contralateral testes in group A-C.But Johnsen score showed no statistical significance between the control group and group A-C(P＞0.05).The total number of appotosis cells per 100 seminiferous tubules in group B(38.75±8.88)were significantly more than the control group(18.63±3.81)as well as group A(20.50±6.12)and group C(18.00±4.47)(P＜0.001),but there were no statistical significances between group A,group C and the control group(P＞0.05).Conclusions Ultrasonic appearances of acute testicular hemodynamic disorder are help for the prediction of contralateral testicular damage.As blood flow in contralateral testes were unaffected after acute testicular hemodynamic disorder,it seems to have no role in contralateral testicular damage.

Objective To develop a specific trans-splicing intron ribozyme type Ⅰ-mediated dual reporter gene system (Rib53-Fluc-tk) for targeting CEA.Methods The novel CEA-targeting trans-splicing ribozyme with the downstream reporter system (Rib53-Fluc-tk) was constructed by genetic engineering technology.The trans-splicing reaction product was evaluated using the 131I-5-iodo-2'-fluro-l-beta-D-arabinofuranosy-luracil (FIAU) cellular uptake rates and the bioluminescence.Two-sample t test,the analysis of variance and the least significant difference (LSD) t test was performed for data analysis.Results The sequence of Rib53-Fluc-tk was proved by gene-sequencing test.Human MCF-7 breast cancer cells showed a high ratio of firefly luciferase/renilla luciferase (0.64±0.10,n =4).A 520 bp band of product existed,which matched with the predicted size using RNA from cells transfected with Rib53-Fluc-tk in MCF-7.Signals were detected by bioluminescence in human embryonic kidney 293T cells co-transfected with Rib53-Fluc-tk and pCDNA3.1-CEA.The labelling rate of 131I-FIAU was (64.02±4.79)％ (n =3).The radiochemical purity was (95.96± 1.07)％ (n=3),and the stability of the radiocompound remained high in human serum at least for 24 h.The uptake of 131I-FIAU in 293T cells transfected with Rib53-Fluc-tk was (0.31±0.01)％ (n=4),while it increased with the incubation time in 293T cells co-transfected with pCDNA3.1-CEA and Rib53-Fluc-tk and reached (1.40±0.06)％ at 4.5 h (F=1 007.29,t=136.34,both P＜0.01).Conelusions A novel and specific reporter gene in the cellular level was established.Taking advantage of trans-splicing reaction of the ribozyme,it could improve the specificity of the reporter gene imaging.

Objective Tostudyrecentclinicalefficacyandadversereactionsofpemetrexedincombi-nationwithcisplatininthetreatmentofadvancedbreastcancer.Methods Usingenvelopesandrandomlythe patients were dividing into treatment group and control group.The treatment group with 1 8 cases of advanced breast cancer were treated with pemetrexed and cisplatin while in the control group ,23 cases advanced breast cancer patients were treated with gemcitabine and cisplatin with 21 days as a cycle.The efficacy and adverse re-actions were determined according to the WHO on Response Evaluation Criteria in Solid Tumors therapy and chemotherapytoxicityevaluationcriteria.Results Tumorcontrolrateinthetreatmentgroupwas83.3%(1 5/1 8),while in the control group was 78.3%(1 8/23 ),and the difference was not statistically significant (χ2 =0.000 94,P>0.05);while the adverse reactions differenced between the treatment group and the con-trol group were statistically significant(bone marrow suppression χ2 =9.23;fatigue χ2 =4.96;nausea and vomi-tingχ2=4.98;diarrheaχ2=4.45;skinrashχ2=5.03,P<0.05).Conclusion Pemetrexedcombinedwith cisplatin in patients with advanced breast cancer has a good effect,and the adverse reaction is low.

Objective To compare the efficacy of different target concentrations of sufentanil target-controlled infusion used to supplement topical anesthesia for fiber-optic bronchoscopy (FOB)-assisted awake nasotracheal intubation in patients with obstructive sleep apnea syndrome (OSAS).Methods Forty-five ASA physical status Ⅱ or Ⅲ patients with OSAS,aged 28-60 yr,with body mass index of 30-40 kg/m2,scheduled for elective surgery,were randomly assigned into 3 groups (n =15 each):control group (group C) and sufentanil with the target plasma concentration of 0.4 ng/ml (group S1) and 0.6 ng/ml groups (group S2).Naso-pharyngeal and laryngeal mucous membrane was sprayed with 2％ lidocaine mixed with 1％ ephedrine for topical anesthesia in both groups.In addition 1％ tetracaine 3 ml was injected into trachea through cricothyroid membrane.FOB-assisted awake nasotracheal intubation was performed after the target concentration was achieved.The degree of airway obstruction was scored during intubation.The highest values of MAP and HR,rate-pressure product ＞ 12 000,decreased respiratory rate and hyoxemia were recorded during the period between induction of anesthesia and 3 min after intubation was completed.The changes in MAP and HR as percent of baseline values were calculated.Before topical anesthesia (T0),when target concentrations were reached (T1),and at 1 and 3 min after intubation (T2,3),blood samples were taken to determine the plasma concentrations of epinephrine (E),norepinephrine (NE) and cortisol.Results Compared with group C,the airway obstruction score was significantly decreased in group S1,the incidence of changes in MAP and HR ＞ 30％ of baseline values and rate-pressure product ＞ 12 000 was decreased,the plasma concentrations of E,NE and cortisol were decreased in S1 and S2 groups,and the incidence of the respiratory rate was decreased and hypoxemia was increased in group S2 (P ＜ 0.05).Compared with group S1,the airway obstruction score were significantly decreased,and the incidence of respiratory rate was decreased and hypoxemia was increased in group S2 (P ＜ 0.05).Compared with the baseline value at T0,the plasma concentrations of E,NE and cortisol were significantly increased at T2,3 in group C,while decreased at T1 in S1 and S2 groups (P ＜ 0.05).Conclusion Compared with pure topical anesthesia,sufentanil with the target plasma concentration of 0.4 ng/ml does not induce respiratory depression,maintains hemodynamics stable,attenuates the stress responses and provides better intubation conditions when used to supplement topical anesthesia for FOB-assisted awake nasotracheal intubation in patients with OSAS.

To explore the cell adhesion molecules (CAMs) CD11a and CD49d in patients with chronic aplastic anemia (CAA) and its clinical implications, the expression of CD11a and CD49d in mononuclear cell (MNC) of bone marrow (BM) and peripheral blood (PB) were measured using APAAP techniques in 20 patients with CAA before and after SSL/C therapy. The results showed that the expression of CD11a and CD49d in MNC of BM and CD11a in MNC of PB increased significantly (P < 0.05) after SSL/C therapy, and there was no significant change of CD49d in MNC of PB in both groups. In conclusion, the decrease of CAMs of CD11a and CD49d participated in the pathogenesis of CAA. The expression of CAMs increases with effective treatment, so the restoration or improvement of altered CAMs of CAA might be beneficial to the proliferation and differentiation of hematopoietic stem cell, and improvement of hematopoiesis in CAA.
Adolescent ; Adult ; Aged ; Anemia, Aplastic ; blood ; Blood Cell Count ; CD11a Antigen ; analysis ; Child ; Chronic Disease ; Female ; Humans ; Integrin alpha4 ; analysis ; Leukocytes ; chemistry ; Male ; Middle Aged

In recent years, root rot diseases of Chinese herbal medicine have been posing grave threat to the development of the traditional Chinese medicine industry. This article presents a review on the occurring situation of the root rot disease, including the occurrence of the disease, the diversity of the pathogens, the regional difference in dominant pathogens,and the complexity of symptoms and a survey of the progress in bio-control of the disease using antagonistic microorganisms. The paper also discusses the existing problems and future prospects in the research.
Animals ; Antibiosis ; Bacteria ; growth & development ; Fungi ; physiology ; Nematoda ; growth & development ; Pest Control, Biological ; methods ; Plant Diseases ; microbiology ; parasitology ; prevention & control ; Plant Roots ; microbiology ; parasitology ; Plants, Medicinal ; microbiology ; parasitology

Cell Membrane Permeability ; Crystallization ; Dosage Forms ; Nephelometry and Turbidimetry ; Pharmaceutical Preparations ; chemistry ; Pharmacokinetics ; Quantitative Structure-Activity Relationship ; Solubility ; Technology, Pharmaceutical ; methods ; trends