1.Image-guided radiotherapy for bladder cancer
Aijie YANG ; Jie LIU ; Mingchen WANG ; Ruizhong MA ; Furong HAO
Journal of International Oncology 2014;(8):605-608
Bladder cancer is a common malignant tumor in urinary system. The life quality of patients reduces obviously after radical resection of bladder. Comprehensive treatment including radiotherapy and chem-otherapy after bladder preservation surgery plays an important role for the prevention of postoperative recur-rence,preservation the function of bladder,and improving the life quality of patients. Image-guided radiothera-py can reduce the setup error and inner boundary caused by the movement of organs,and can alleviate the side reaction of radiation,and it also can provide basis of expanding boundary of planning target volume for the blad-der cancer patients.
2.Clinical and molecular genetic study of limb-girdle muscular dystrophy type 2A in a Chinese family
Aijie LIU ; Haipo YANG ; Lin CHEN ; Hui XIONG
Chinese Journal of Applied Clinical Pediatrics 2014;29(24):1854-1857
Objective To analyze the clinical,muscle pathological features and molecular mutations in the 2 Chinese Han siblings with limb-girdle muscular dystrophy(LGMD) and conclude the phenotype/genotype correlations.Methods Clinical and muscle pathological data were collected.Genomic DNA of the two siblings and their parents were extracted using standard procedures from the peripheral leukocytes.A custom of targeted gene panel including 61 neuromuscular genes were designed by using the Agilent Sureselect Target Enrichment Kit.Targeted next generation sequencing(NGS) was performed in the proband,and CAPN3 gene mutation was verified with Sanger sequencing in the two siblings and their parents.The dbSNP138 and http://www.dmd.nl were searched to determine the disease-causing mutations.Results The proband slowly showed muscle weakness profoundly with pelvic muscles,developed difficulty in squatting and standing and climbing stairs.She had a tight Achilles tendon,high CK level (1 908-9 241 IU/L),without winging scapula and hypertrophy calf.The affected brother was only diagnosed hyper CKemia.By using the targeted NGS,the two siblings possessed the same two compound heterozygous mutations(c.717delT and c.2243G > A) in CAPN3 gene.The two mutations both were verified by Sanger sequencing and had been reported before.Conclusions LGMD is clinically and genetically heterogeneous,and targeted NGS is powerful in defining the causal mutation of LGMD and helpful in investigating the exact genotype/phenotype analysis.
3.Comparison of the Effects of Propofol and Sevoflurane on the Plasma TXB2,ET-1 and D-D Levels of Patients Underwent Posterior Retroperitoneal Laparoscopic Surgery
Huatang ZHAO ; Xizeng ZHANG ; Aijie LIU ; Baofeng DING ; Yusheng JING
Progress in Modern Biomedicine 2017;17(24):4727-4730
Objective:To compare the effects ofpropofol and sevoflurane on the plasma thromboxane B2 (TXB2),endothelin-1 (ET-1) and D-dimer (D-D) levels of patients underwent posterior retroperitoneal laparoscopic surgery.Methods:84 cases of patients underwent post retroperitoneal laparoscopic surgery in our hospital from May 2015 to December 2016 were selected as research objectives and randomly divided into two groups with 42 cases in each group.The same anesthesia induction were provided for two groups,the observation group was given 2%~3% sevoflurane for continuous inhalation,while the control group was given 4~12 mg/(kg·h) of propofol for continuous injection by pump.Both groups received remifentanil 10 μg/ (kg ·h) target-controlled infusion simultaneously.The levels of plasma TXB2,ET-1 and D-D in the two groups were measured after anesthesia induction (T0),at 0.5 h (T1),1 h (T2),1.5 h (T3) after pneumoperitoneum.Meanwhile,the anesthetic effects and adverse reactions were compared between two groups.Results:The time of consciousness disappearence,time of tracheal intubation,spontaneous breathing recovery time,eye opening time,verbal response time,orientation recovery time and extubation time of observation group were significantly shorter than those of the control group (P<0.01).No significant difference was found in the occurrence of adverse reactions between two groups (P>0.05).The plasma TXB2,ET-1 and D-D levels of both groups were gradually increased at T1,T2 and T3,and all were significantly higher than that at T0 (P<0.01).The plsma TXB2,ET-1 and D-D levels at T1,T2 and T3 of observation group were significantly lower than those of the control group at same time (P<0.01).Conclusion:Posterior laparoscopic surgery could cause different degrees of hypercoagulability of blood.Compared with propofol,sevoflurane could effectively inhibit the release of TXB2,ET-1 and D-D in anesthesia after retroperitoneal laparoscopic anesthesia,and play a better role of anticoagulation.
4.Acute toxicity of intravenous isoflurane in Beagles
Aijie LIU ; Wensheng ZHANG ; Hanxiang MA ; Xiaolin YANG ; Zongbin YANG ; Yan RAO ; Nanfu LUO ; Jin LIU
Chinese Journal of Anesthesiology 2010;30(7):772-773
Objective To investigate the acute toxicity of intravenous isoflurane in Beagles.Methods Six healthy adult Beagles of both sexes aged 6-8 months weighing 6-8 kg were used in this study.Isoflurane injectio (120 mg/ml) in 30% hpid emulsion was injected intravenously. Femoral artery was cannulated for direct BP monitoring.ECG was continuously monitored.The maximal tolerance dose (MTD) and approximate lethal dose (ALD) were determined by up-and-down technique. The initial dose was 3.0 ml/kg. The dose was decreased/increased by 0.3 ml/kg if the previous animal died/survived.The survived dogs were observed for 2 weeks.Autopsy and histopathological examination were performed on all dead Beagles.Results The ALD and MTD of intravenous isoflurane were 252 and 216 mg/kg. Autopsy and histopathological examination did not show any abnormality.Conclusion Cardiopulmonary depression is the main manifestation of the acute toxicity of intravenous isoflurane in Beagles.
5.Effects of dexmedetomidine conmbined with small-dose of sulfentanil on hemodynamics during anesthesia induction in patients undergoing off-pump coronary artery bypass grafting
Yan JIANG ; Shiduan WANG ; Aijie LIU ; Ruxang TENG ; Jian SUN ; Wenyi LIU ; Chunqin CHU
Chinese Journal of Anesthesiology 2011;31(9):1093-1095
Objective To investgate the effects of dexmedetomidine combined with small-dose of sufentanil on the hemodynamics during anesthesia induction in patients undergoing off-pump coronary artery bypass grafting.Methods Seventy-five ASA Ⅱ or Ⅲ and NYHA Ⅱ or Ⅲ patients aged 46-72 yr,weighing 59-86 kg,ejection fraction ≥45%,undergoing off-pump coronary artery bypass grafting,were randomly divided into 3 groups ( n =25):dexmedetomidine combined with small-dose of sufentanil group (group DS),small-dose of sufentanil group (group S1 ) and large-dose of sufentanil group (group S2 ).In group DS,dexmedetomidine 0.8 μg/kg (diluted with normal saline to 15 ml) was injected for 15 min at a rate of60 ml/h,while the same volume of normal saline were given in groups S1 and S2.Anesthesia was induced with midasolam 0.08 mg/kg and pipecuronium 0.12 mg/kg.After administration of the total dose of 1/3 midazolam and 1/8 pipecuronium,sufentanil 0.5,0.5 and 0.8μg/kg (diluted with narmalsaline to 10 ml) were injected in groups DS,S1 and S2 respectively.Then the rest of midazolam was injected.When BIS value ≤ 75,the rest of pipecuronium was injected.When BIS value ≤ 55,the patients were tracheal intubated and mechanically ventilated.PETCO2 was maintained at 30-35 mm Hg.The adverse ardiovascular events (hypertension,hypotension,tachycardia and bradycardia) and drugs intervention were recorded during anesthesia induction.Results Compared with group S2,the incidence of hypertension and tachycardia was significantly increased in group S1,the incidence of hypotension decreased in groups S1 and DS,the incidence of drug intervention decreased in group DS (P < 0.05).Compared with group S1,the incidence of hypertension,hypotension and tachycardia was significantly decreased,the incidence of bradycardia increased,theincidence of drug intervention decreased in group DS (P < 0.05).Conclusion Dexmedetomidine (0.8 μg/kg) combined with small-dose of sufentanil (0.5 μg/kg) is beneficial for keep the stable of hemodynamics during anesthesia induction in patients undergoing off-pump coronary artery bypass grafting.
6.Expression of WNT5 B in breast cancer and its clinical significance
Hongtao LIU ; Fanhan ZHOU ; Yuanyuan SHEN ; Aijie ZHANG ; Yanmei LAI ; Hongyuan LI
Chinese Journal of Pathophysiology 2015;(6):1032-1035
[ ABSTRACT] AIM:To study the expression of WNT5B in the breast cancer and further to discuss the correlation between WNT5B and clinicopathologic characteristics of breast cancer.METHODS:The expression of WNT5B at mRNA and protein levels was measured by real-time PCR and Western blot in 67 cases of breast cancer and the tissue adjacent to carcinoma.In addition, the immunohistochemical method was used to detect the expression of WNT5B in the breast cancer and the tissue adjacent to carcinoma.The relationships between WNT5B expression and clinicopathologic indexes were also analyzed.RESULTS:The expression of WNT5B in the breast cancer was obviously lower than that in the tissue adjacent to carcinoma (P<0.05).The expression of WNT5B at mRNA and protein levels in 67 samples of breast cancer was in va-rious degrees.The expression of WNT5B in T≤20 mm group of human breast cancer was obviously higher than that in T>20 mm group (P<0.05).The expression of WNT5B had no obvious correlation with axillary lymph node metastasis, histo-logical grade and immunohistochemical indexes of ER, PR, c-ErBb-2, p53 and Ki67 ( P>0.05) in the breast cancer. CONCLUSION:The expression of WNT5B decreases obviously in breast cancer.The expression of WNT5B is related to primary tumor size, which provides new ideas for the diagnosis and treatment of breast cancer, suggesting that WNT5B may be a new molecular marker for prognosis of breast cancer.
7.Effects of dexmedetomidine on hemodynamics during induction of anesthesia in patients with atrial fibrillation with rapid ventricular rate undergoing noncardiac surgery
Zhimin XUE ; Shiduan WANG ; Aijie LIU ; Haihong LUAN ; Li YUAN ; Yan JIANG
Chinese Journal of Anesthesiology 2014;34(12):1452-1454
Objective To evaluate the effects of dexmedetomidine on hemodynamics during induction of anesthesia in the patients with atrial fibrillation with rapid ventricular rate undergoing noncardiac surgery.Methods Fifty patients with rheumatic valvular heart disease complicated with atrial fibrillation,aged 45-64 yr,weighing 50-75 kg,with ventricular rate ≥ 90 bpm,of ASA physical status Ⅱ or Ⅲll (NYHA Ⅱ or Ⅲ),scheduled for elective surgery,were randomly divided into 2 groups (n =25 each) using a random number table:control group (group C) and dexmedetomidine group (group D).Dexmedetomidine 0.6 μg/kg was infused intravenously at 10 min prior to induction of anesthesia in group D.Anesthesia was induced with iv midazolam 0.06 mg/kg,sufentanil 0.6 μg/kg,and vecuronium 0.12 mg/kg.Tracheal intubation was performed when the BIS value≤≤ 55After admission to operating room (T0,baseline),immediately after the end of dexmedetomidine infusion (T1),immediately before intubation (T2),and at 1,3 and 5 min after intubation (T3-5),SP,DP,MAP and HR were recorded.The adverse cardiovascular events were recorded starting from induction of anesthesia to 5 min after intubation.Results Compared with the baseline value at T0,HR was significantly decreased at T2,5,while increased at T3,4 in group C,and HR was decreased at T1-5 in group D; SP,DP and MAP were decreased at T2,5,while increased at T3 in group C,and no significant changes were found in the indices mentioned above in group D.Compared with group C,the incidence of hypotension,hypertension and tachycardia was significantly decreased,and no significant changes were found in theincidence of bradycardia in group D.Conclusion Dexmedetomidine 0.6 μg/kg infused intravously is helpful in maintaining the hemadynamics stable during induction of anesthesia in the patients with atrial fibrillation with rapid ventricular rate underging noncardiac surgery.
8.Progress of protocadherin 19(PCDH19)gene related epilepsy
Chinese Journal of Applied Clinical Pediatrics 2017;32(24):1908-1911
PCDH19 gene related epilepsy is an unusual X - linked disease that females and mosaic males are affected,while hemizygous males are not. Recently,the number of reports about PCDH19 gene related epilepsy is in-creasing,and PCDH19 gene has become one of the most important epilepsy genes. Now,the structure and function of PCDH19 gene and protein,the inheritance and pathogenesis,clinical features,treatment and genotype/ phenotype asso-ciated with PCDH19 gene related epilepsy,were reviewed.
9.Effects of autologous blood withdrawal-reinfusion on inflammatory responses of patients undergoing cardiac surgery with different time courses of cardiopulmonary bypass
Aijie LIU ; Guoqiang LIU ; Jing XIA ; Yan DONG ; Dezhang ZHU ; Shiduan WANG
Chinese Journal of Anesthesiology 2017;37(10):1171-1175
Objective To evaluate the effects of autologous blood withdrawal-reinfusion on inflam-matory responses of patients undergoing cardiac surgery with different time courses of cardiopulmonary by-pass(CPB). Methods A total of 120 patients, aged 18-70 yr, of American Society of Anesthesiologists physical status Ⅱ-Ⅳ, were divided into 2 groups(n=60 each)using a random number table: autologous blood withdrawal-reinfusion group(ABWR group)and non-autologous blood withdrawal-reinfusion group (NABWR group). Each group was further divided into 3 subgroups(n=20 each)according to the expected time of CPB: long time course(>120 min)subgroup(L subgroup), medium time course(>60 min-≤120 min)subgroup(M subgroup)and short time course(≤60 min)subgroup(S subgroup). In group ABWR, after the end of CPB and after heparin was reversed with protamine, blood shed from the surgical field and left in the autologous blood recycling machine pipeline after the end of CPB was collected, filtra-ted, washed, concentrated and reinfused. After the end of CPB, blood left in the autologous blood recy-cling machine pipeline was directly kept in the storage bag and partially or totally reinfused in group NAB-WR. Before operation and at 1, 6, 24 and 48 h after the end of CPB, blood samples were collected for de-termination of serum tumor necrosis factor-alpha(TNF-α), interleukin-6(IL-6)and IL-10 concentrations by enzyme-linked immunosorbent assay. Results Compared with ABWR-S subgroup, the serum TNF-α and IL-6 concentrations were significantly increased at each time point after the end of CPB(P<005), and no significant change was found in serum IL-10 concentrations in ABWR-L and ABWR-M subgroups (P>005). There were no significant differences in serum TNF-α, IL-6 and IL-10 concentrations between ABWR-L subgroup and ABWR-M subgroup(P>005). Compared with NABWR subgroup of the same time course, the serum TNF-α concentration was significantly decreased at each time point after the end of CPB, the serum IL-6 concentration was decreased at 6-48 h after the end of CPB(P<005), and no significant change was found in serum IL-10 concentrations in ABWR-L subgroup(P>005); the serum TNF-α con-centration was significantly decreased at 1 h after the end of CPB, and the serum IL-6 concentration was de-creased at 6 and 24 h after the end of CPB in ABWR-M subgroup(P<005); no significant difference was found in the serum concentrations of TNF-α, IL-6 or IL-10 at each time point after the end of CDB in AB-WR-S subgroup(P<005). Conclusion With prolongation of the time courses of CPB, the efficacy of autologous blood withdrawal-reinfusion in inhibiting inflammatory responses of patients undergoing cardiac surgery is more significant.
10. Spectrum of mutations in benign familial neonatal-infantile epilepsy
Qi ZENG ; Yuehua ZHANG ; Xiaoling YANG ; Lihua PU ; Jing ZHANG ; Aijie LIU ; Zhixian YANG ; Xiaoyan LIU ; Xiru WU
Chinese Journal of Pediatrics 2018;56(4):267-273
Objective:
To investigate the spectrum of mutations in families with benign familial neonatal-infantile epilepsy (BFNIE) .
Methods:
Clinical data and peripheral blood DNA samples of all BFNIE probands and their family members were collected from Peking University First Hospital between December 2012 and April 2016. Clinical phenotypes of affected members were analyzed. Genomic DNA was extracted from peripheral blood samples with standard protoco1. Mutations in PRRT2 were screened using Sanger sequencing. For families that PRRT2 mutations were not detected by Sanger sequencing, candidate gene mutations were further screened by next-generation sequencing for epilepsy.
Results:
A total of 7 families were collected. Of the 30 affected members, 15 were male and 15 were female. The age of epilepsy onset was from 2 days to 6 months. Genetic testing led to the identification of gene mutations in all families. One family had the PRRT2 hotspot mutation (c.649dupC). Three families had missense SCN2A mutations (c.2674G>A/p.V892I, c.2872A>G/p.M958V, and c.2627A>G/p.N876S) . Both c.2872A>G/p.M958V and c.2627A>G/p.N876S were novel SCN2A mutations. Three families had KCNQ2 mutations. Two of them had missense mutations (c.958G>A/p.V320I and c.998G>A/p.R333Q) . The KCNQ2 mutation c.958G>A/p.V320I was novel. One family had a gene deletion of KCNQ2, which also extended to the adjacent gene, CHRNA4; and the deletion involved all the exons of KCNQ2 and CHRNA4.
Conclusions
Mutations in KCNQ2, SCN2A, and PRRT2 are genetic causes of BFNIE in Chinese families. The detection rate for gene mutations is high in BFNIE families. KCNQ2 and SCN2A mutations are common in BFNIE families. SCN2A mutations (c.2872A>G/p.M958V and c.2627A>G/p.N876S) and KCNQ2 mutation (c.958G>A/p.V320I) are novel mutations.