1.3-Phosphoinositide-dependent protein kinase-1 in tumor genesis, development and treatment
Journal of International Oncology 2016;43(4):285-288
3-phosphoinositide dependent kinase-1 (PDK1) has been shown to be a critical regulator of the PI3K-Akt pathway.PDK1 can activate Akt and participates in the activation of PI3K-Akt signaling pathway to promote tumor development,invasion and metastasis.At present,it has been found that PDK1 is highly expressed in head and neck cancer,multiple myeloma,pancreatic cancer,esophageal cancer,colon cancer and other malignant tumors.Thereby inhibiting PDK1 overexpression may provide a new breakthrough for the treatment of malignant tumor.At present,many kinds of PDK1 inhibitors have been put into production,which plays an important role in tumor therapy.
2.Research progress of children with status epilepticus
Chinese Journal of Applied Clinical Pediatrics 2014;29(24):1897-1900
Status epilepticus (SE) is one of the common medical emergencies of the pediatric age group.It may lead to serious and even irreversible neurological abnormalities,even death,if not diagnosis and treatment properly.To recognise etiology,rise factors,seizure type,treatment,outcome and the correlation between each other of children with status epilepticus are significant for management.This paper aimed to review recent epidemiological studies on children with status epilepticus,in order to provide evidences for the current clinical practice and further research.
3.Effect of thyroid hormone on the expression of deiodinase and myelin basic protein in brain tissue of preterm rabbit with germinal matrix-intraventricular hemorrhage
Tiantian LIU ; Fang LIU ; Yingmei LI
Journal of Clinical Pediatrics 2015;(10):887-892
ObjectivesTo investigate the effect of thyroid hormone on the expression of deiodinase and myelin basic protein in brain tissue of neonatal rats with germinal matrix-intraventricular hemorrhage (GM-IVH), and its nerve protective effect.Methods Sixty premature rabbits of gestational age 29 days were randomly divided into control, model and intervention groups. The prema-ture rabbits in model and intervention groups were given intraperitoneal injection of 50% glycerol to establish GM-IVH animal model and the premature rabbits in control group were given the same dose of saline. The GM-IVH was screened by cranial ultrasound. The premature rabbits with GM-IVH in intervention group were given intraperitoneal injection of triiodothyronine and the other two groups were given the same dose of saline. At 3 days, 7 days and 14 days after birth, the premature rabbits were killed and the brain tissue were quickly separated. The expression of type 2 iodothyronine deiodinase (D2) and type 3 iodothyronine deiodinase (D3) of periventricular zone tissue were detected by western blot method. The expression of myelin basic protein (MBP) were detected by immunohistochem-ical method.ResultsThe expression of D2 in brain tissue increased gradually in three groups. At the same time point, the expression of D2 was the lowest in the model group, the highest in the control group, and the middle in the intervention group. The differences of D2 among three groups were statistically signiifcant (allP<0.001). The expression of D3 increased gradually in the control and model groups, while it was the highest in the intervention group at day 7. At the same time point, the expression of D3 in the control group was the lowest, it was higher in intervention group than that in the model group at 3 days, then it was higher in the model group than that in the intervention group. The differences of D3 among three groups were statistically signiifcant (allP<0.001). The expression of MBP increased gradually in the control and intervention groups, and it decreased gradually in the model group. At the same time point, the MBP was the lowest in the model group, it was the highest in the control group, and it was the middle in the intervention group. The differences of MBP among three groups were statistically signiifcant (P<0.001).ConclusionsThe expressions of D2 and MBP in the brain tissues of premature rabbit with the GM-IVH increased while the expression of D3 decreased in some extent after thyroxine intervention.
4.Association study on personality and plasma cortisol level in the patients with generalized anxiety disorder
Tiantian ZHOU ; Lingli KONG ; Chunwen LIU
Chinese Journal of Behavioral Medicine and Brain Science 2015;24(12):1113-1116
Objective To study the correlation of personality characteristics and plasma cortisol levels in the patients with generalized anxiety disorder.Methods According to Diagnostic and Statistical Manual of Mental Disorders (DSM-Ⅳ), 38 patients with generalized anxiety disorder and 39 normal controls were assessed with Hamilton anxiety scale (HAMA) , generalized anxiety disorder scale (GAD-7) , penn state worry questionnaire (PSWQ) , symptom checklist-90(SCL-90) and eysenck personality questionnaire (EPQ).Electrochemiluminescence was used to test plasma cortisol concentration.Results The EPQ-N score in the patients was significantly higher than that in normal controls(t=14.307, P<0.01).Furthermore,N score in the patients showed a significantly positive correlation with HAMA total score, SCL-90 total score, somatization score, interpersonal sensitivity score, depression score and anxiety score (r=0.492-0.977, P<0.01).Plasma cortisol levels in patients with generalized anxiety disorder((668.50±60.22) nmol/L) were significantly higher than those ((345.35±58.91) nmol/L) in normal controls (t=23.802, P<0.01).Plasma cortisol concentrations displayed a significantly positive correlation with N score, GAD-7, PSWQ, HAMA total score, SCL-90 total score, somatization score, interpersonal sensitivity score, depression score, and anxiety score (r =0.501-0.995, P< 0.01).Conclusion Plasma cortisol levels in the patients with generalized anxiety disorder are higher than those in normal controls.Plasma cortisol levels are related to the mental health.Patients with generalized anxiety disorder tend to be neuroticism.
5.Study on syntactic structure and English translation of three-character pathogenesis TCM terms
Tiantian FU ; Lilan DU ; Aijuan LIU
International Journal of Traditional Chinese Medicine 2015;(6):485-489
English translation of three-character pathogenesis TCM terms was investigated in this paper from the perspective of accuracy and systematization,two main principles of terminology translation. The terms were classified into five categories according to the three-character syntactic structure, i.e. attributive-modifier structure, adverbial-modifier structure, subject-predicate structure, subject-predicate-object structure and verb-object structure. Further study was conducted to investigate the English translation of attributive-modifier structure terms by comparing four prominent national and international standards of TCM terminologies.
6.Using random allocation book for random allocation concealment in a clinical trial
Weihua ZHONG ; Mengjie LU ; Yuxiu LIU ; Tiantian LIU ; Minlin ZHOU
Journal of Medical Postgraduates 2017;30(1):91-94
Objective Random allocation concealment is important in ensuring high-guality randomized controlled clinical trial.In this paper , we aimed to design a more convenient and effective two couplet random allocation method through improving the random allocation concealment technology which uses the envelope method . Methods According to the randomized sequence , a two-couplet random allocation should be prepared for every subject and bound into a book in order , which named random assignment book with cover and instructions .The first couplet is to collect the enroll information and the second couplet is to show the allocation informa -tion.The serial numbers of the two couplets which around sealant are the same , and leave blank at the same areas of the two couplets for signing the enter information .The content of the first couplet can be completely copied to the second couplet .In order to avoid expo-sing the allocation information in advance , the back of the second couplet should be black-printed. When the subjects are sure qualified, the researchers selected the corresponding two couplet in a sequential order .Exposing the allocation infromation in the second couplet, and the subjects will be allocated to the group designated on the second couplet .This random allocation book should be entrusted to professional printing mechanism ,printing according to the random assignment sequence table and in the strict quality control .For the multicenter clinical trials , it can be printed in parts . Results The method has been implemented in nearly ten randomized controlled trials and obtained the consistent high praise . Conclusion The random allocation book method is easy to produce , simple operation and convenient in monitoring , which can effectively achieve the random allocation concealment in a clinical trial as well as having a sig -nificantly practical value in ensuring the quality of randomization .
7.Changes of CD4~+ CD25~+ Regulatory T Cells in Peripheral Blood and Their Relation with Their Body Mass Index of Children with Acute Attack Asthma
Huarong HUANG ; Tiantian LIU ; Baojing WU ; Weiping TAN ; Xiandi MAI
Journal of Sun Yat-sen University(Medical Sciences) 2010;31(1):106-109
[Objective] To investigate the changes of CD4~+ CD25~+ regulatory T cells (Tr) in peripheral blood and their relation with their body mass index (BMI) of children with acute attack asthma. [Methods] Peripheral blood was obtained from 70 children with acute attack asthma, 30 remission children, and 50 normal control children. Then 70 children with acute attack asthma, were divided by normal weight group (40 cases) and overweight group (30 cases). The levels of CD4~+CD25~+Tr of the patients were tested by flow cytometry (FCM), and their BMI were calculated. [ Results] The levels of CD4~+ CD25~+ Tr [(6.17± 1.72)%] in acute attack group were lower than that in remission group [(7.56±1.48)%] or that in the control group [(7.13± 1.48)%] (P<0.05), but no difference between that in the remission and that in the control (P>0.05). The CD4~+CD25~+Tr of asthmatic children with normal weight [(6.34±1.71)%] was higher than that of asthmatic children with overweight [(4.74±1.20)%] (P<0.05). There was a remarkably negative correlation between the level of CD4~+ CD25~+ Tr of asthmatic children [(6.17±1.72)%] and the BMI (16.00±2.14) (r_p=-0.814, P<0.05). [Conclusion] The levels of CD4~+ CD25~+Tr are remarkable decrease in attack asthmatic children, and more decrease in overweight patients. There is remarkably negative correlation between the levels of CD4~+CD25~+ Tr in peripheral blood of attack asthmatic children and their BMI.
8.Body temperature and prognosis in patients with massive hemispheric infarction in acute phase
Jingwei ZHAO ; Yingying SU ; Tiantian LIU ; Weibi CHEN
International Journal of Cerebrovascular Diseases 2009;17(7):506-510
in order to maintain a normal temperature range.
9.The accuracy of neuron-specific enolase predicting malignant middle cerebral artery territory infarction
Xia LI ; Yingying SU ; Yunzhou ZHANG ; Lin WANG ; Tiantian LIU
International Journal of Cerebrovascular Diseases 2011;19(2):90-94
Objective To investigate the accuracy of serum neuron-specific enolase (NSE)predicting malignant middle cerebral artery infarction(mMCAI).Methods A total of 40 patients with acute massive cerebral infarction within 24 hours after symptom onset were recruited.Blood samples were collected at 24,36 and 48 hours after symptom onset.Serum NSE concentration was determined by automatic electrochemiluminescence analyzer.mMCAI was defined as hernia signs in clinical practice,and CT/ MRI showed mass effect.The receiver operating characteristic curve was used to analyze the accuracy of serum NSE concentration in predicting mMCAI at 3 time points.Results Sixteen patients(40%)developed mMCAI.The serum NSE concentration for predicting the accuracy of mMCAI was poor at 24 hours after symptom onset;the serum NSE concentration for predicting the specificity of mMCAI was high (96%)at 36 hours after symptom onset,but the sensitivity was lower(69%);the serum NSE concentration for predicting the specificity(92%)and sensitivity(88%)of mMCAI were high at 48 hours.Conclusions The serum NSE conoentration and its dynamic changes may predict the occurrence of mMCAI,and the predicting time points are appropriate from 36-48 hours after symptom onset.
10.Acoustic radiation force impulse imaging technique in differential diagnosis of renal tumors
Xuehui LIU ; Fang NIE ; Xiaofeng WANG ; Tiantian DONG ; Hong PAN
Chinese Journal of Medical Imaging Technology 2017;33(4):581-585
Objective To evaluate the value of acoustic radiation force impulse imaging (ARFI) technique in differential diagnosis of renal tumors.Methods Totally 86 patients with 86 renal tumors underwent conventional ultrasound and ultrasound with ARFI technique.The shear wave velocity (SWV),virtual touch tissue imaging (VTI) score between tumors and the surrounding renal parenchyma,benign and malignant tumors were compared.Results In 86 patients with renal tumors,32 cases were renal benign tumors and all them were angiomyolipomas (AML),54 cases were renal malignant tumors,inculding 26 cases of renal clear cell carcinoma (ccRCC),8 cases of renal color cell carcinoma (cRCC),5 cases of renal papillary carcinoma (pRCC),15 cases of invasive urothelial carcinoma (IUC).The difference of SWV and VTI scores between lesions and the surrounding renal parenchyma were statistically significant (both P<0.05).The SWV and VTI score renal benign tumors were lower than those of malignant tumors (both P<0.05).The area under the ROC curve with SWV>1.37 m/s or VTI score>3.83 to distinguish benign and malignant renal tumors were 0.898,0.847,sensitivity were 88.9%,83.3%,specificity were 84.4%,78.1%,respectively (P<0.05).Among renal malignant tumors,SWV and VTI score of ccRCC significantly higher than those of other malignant tumors,and the area under the ROC curve with SWV>2.06 m/s or VTI score>4.31 to distinguish ccRCC and other renal malignant renal tumors were 0.766,0.729,sensitivity were 65.4%,57.7%,specificity was 82.1%,78.6%,respectively (P<0.05).Conclusion ARFI has important value in differential diagnosis of renal tumors,and can help to distinguish ccRCC with other renal malignant tumors.