1.Research progress of Brachyury gene and protein in tumors
Cancer Research and Clinic 2015;27(2):132-135
The Brachyury gene (T-gene) and its coded product Brachyury potein which belong to T-box transcription factor family,are critical in the development of mesoderm and formation of notochord.Recent researches show accumulating evidences of its important role in tumorigenesis and cancer progression.The mechanisms involved may include epithelial-mesenchymal transition,cancer stem cells,cell cycles,senescence and resistance of conventional radiotherapy or chemotherapy.
2.Preparation and characterization of diclofenac sodium layered double hydroxide nanohybrids
Yanjun WANG ; Feng CAO ; Qineng PING
Journal of China Pharmaceutical University 2009;40(4):321-326
Aim: To prepare diclofenac sodium-layered double hydroxide nanohybrids(DS-LDH) and investigate its properties. Methods: The diclofenac sodium anions were hybridized with LDH by co-precipitation. The synthetic nanohybrids were characterized by various methods, such as laser particle sizer, XRD, IR, and TEM. Paddle method according to the Chinese Pharmacopoeia was used to determine the dissolution. The anti-inflammation of nanohybrids and diclofenac sodium were compared by the effect on auricular tumescence induced by xylene in mice. Results: The acidic negative ion of layered double hydroxides were replaced by the diclofenac anion to form DS-LDH. Release studies showed that the nanohybrids could serve as controlled release systems for DS. Zn-Al-NO3-LDH was proved to have character of neutral pH which is more suitable for orphthalmic preparation. The DS-LDH nanohybrids could keep the effect of anti-inflammation. Conclusion: Layered double hydroxide nanohybrids can be used as sustained-release carrier of anionic drugs. A novel type of drug-inorganic nanohybrids was prepared successfully which has a potential value of clinical application.
3.Clinical and pathological features of esophageal and gastric junction adenocarcinoma and current status of postoperative adjuvant chemoradiotherapy
Yanjun ZHANG ; Jun WANG ; Feng CAO
Chinese Journal of Radiation Oncology 2017;26(3):352-357
The incidence of adenocarcinoma of the esophagogastric junction ( AEG) is rising rapidly in recent years. AEG as an independent disease different from squamous cell carcinoma of the esophagus and gastric adenocarcinoma is getting acknowledged for most of scholars, with the distinctive anatomy location and involute recurrence and metastasis style. A higher rate of relapse and poor prognosis after resection become conscious since most of patients have been diagnosed with advanced disease, and adjuvant chemoradiotherapy needs to be valued further. But so far, there is no clinical data and subgroup analysis aimed at the value of postoperative treatment for AEG specially, leading to controversy is remaining in patients could get benefit from postoperative treatment, and delineation of the radiation target, etc. The design of the irradiation target should in terms of the clinical?pathological characteristics of the AEG, Siewert'''' s subtypes, the lymph node metastasis mapping and recurrence characteristics after surgery.
4.Empirical study on the interests claims of employees in public hospitals based on stakeholders
Rui HUANG ; Yanjun ZHONG ; Xi CHEN ; Guangming TAN ; Zhanchun FENG
Chinese Journal of Hospital Administration 2011;27(8):573-576
Objective To give an empirical study on the interests claims of employees in public hospitals. Methods By questionnaire investigation, to sum up data using factor analysis and pairedsamples T test, and to compare difference between different kinds of patients using ANOVA. Results The interests claims of employees can be summed up to seven factors and there is some significant difference between different kinds of employees. Conclusion At current stage, public hospitals need pay more attention to material interests claims of employees.
5.Thyroid functional changes of normal human fetus and newborns
Yun ZHAO ; Lijiang ZHANG ; Yanqiu WEI ; Yanjun FENG ;
Chinese Journal of Obstetrics and Gynecology 2000;0(09):-
Objective To study the changes of the thyroid hormones leval of human fetus and newborans Methods More than 71 cases of medically indicated cordocentesis have been done in 16 36 gestational weeks in our hospital during last three years. Among them, 71 fetus who were free of diseases and their maternal thyroid function were normal were included into the study group. The blood samples were sent to analysis of thyroxine (T 4), triiodothyroxine (T 3), free thyroxine (FT 4), free triiodothyroxine (FT 3) and thyrotropin (TSH). 140 umbilical cord blood samples taken at the time of term delivery were sent to analysis of FT 4,FT 3 and TSH as a control. Normal range of different gestational weeks was calculated. Statistical analysis was done for the changes of all these thyroid hormones before 28 weeks and after Results All the thyroid hormones can be detected in 16 weeks of pregnancy,FT 4 already reaches the top level of adults (5.8?2.6) pmol/L and will continually increase with the increase of gestational age. There was a parallel increment of all the fetal thyroid hormone concentrations with the gestational age. The concentrations of T 4,T 3 and FT 4 have a rapidly increase after 28 weeks and have a statistically significant difference from (2.8 ?1.8) nmol/L, (37.2?27.2) nmol/L and (10.6?3.1) pmol/L,respectively to (5.8?2.6) nmol/L, (55.9?33.3) nmol/L,( 13.0?4.5) pmol/L, respectively. TSH level of fetus was increased gradually along the gestation, reaching the up level of the adults at the 20 weeks and peaking at the birth time. While the T 3 and FT 3 keep in a lower level in gestation Conclusions Fetal thyroid hormones increase with the gestational age.The diagnosis of congenital fetal thyroid hormone malfunction in the second half of the pregnancy should be monitored mainly by the T 4, FT 4 and TSH levels in different gestational age. For this consideration, to set up a reliable data for normal human fetus thyroid hormone concentrations is a very important and essential step to provide a practical guide for doctors to do intra uterine diagnosis and treatment of associated high risk groups. The peaking level of TSH at the birth time will surely company the changing of other thyroid hormones, so it might not be the best time to screening the congenital thyroid malfunction at the 72 hours after birth.
6.Observation on anricular-point plaster on children with simple obesity
Shuhua CUI ; Guangyao LI ; Yanjun XING ; Feng WANG
International Journal of Traditional Chinese Medicine 2010;32(1):66-67
Objective To observe effects of auricular-point plaster therapy on children simple obesity.Methods A total of 97 children of simple obesity were treated with auricular-point plaster.Body mass index was measured before and after the treatment.Therapeutic effects and positive changes of auricle were also observed.ResultsBody mass index decreased significantly(P<0.01)after the treatment as compared to the pre-treatment(t=3.142,P<0.01).Positive changes of auricle reduced.Auricular-point plaster showed therapeutic effects on obesity in different extents.Conclusion Auricular-point plaster was effective in treating children with simple obesity.
7.Observation and nursing of patients after minimally invasive ventriculo-atrial shunt
Yanjun LIU ; Qingliang FENG ; Shuhong MA ; Xiyun ZENG
Chinese Journal of Practical Nursing 2009;25(17):21-23
Objective To summarize the observation points and nursing experience after minimally invasive ventriculo-atrial shunt. Methods 45 patients after minimally invasive ventficulo-atrial shunt were given preoperative psychological care and preparations, postoperative observation of vital signs, con-sciousness, pupil, with or without intracranial hypertension, inadequate shunt or transitional symptoms, in-fectious symptoms, specific and basic care, awareness of postoperative complications and detailed guidance for discharge and follow-up jobs. Results Half month after shunt 28 cases regained consciousness, 9 cases with alleviated consciousness dysfunction, 8 cases with unchanged consciousness dysfunction, 5 cases with shunt blockage; 3 cases with over-shunt; 5 cases with inadequate shunt, 1 case with blood-borne in-fection, 1 case with shunt exposed, no intracranial infection, air embolism, complications such as endocardi-tis took place. Conclusions Adequate preoperative preparation and close postoperative observation, ef-fective specific care and basic care can increase success rate of ventriculo-atrial shunt and improve the quality of life of patients.
8.Proliferation of antigen specific T cells in vitro and analysis of phenotype and function
Yanjun WANG ; Daojie LIU ; Fang LIU ; Feng REN ; Bin SUN
Chinese Journal of Microbiology and Immunology 2008;28(7):621-623
Objective To explore a new peptide-based approach independent of HLA to generate antigen-specific CD+ CD8+T cells. Methods Peripheral blood mononuclear cells(PBMC) were stimula- ted for 6 h with IE-1 peptide pool. Then the activated IFN-γsecreting ceils were tested by immunomagnetic selection. And the selected cells were cultured with radio-inactivated PBMC in medium with 100 IU/ml IL-2 for 4 weeks. Results The generated T cell lines consisted of IE-1 specific CD4+ T (6.88%) and CD8+ T cells 92.99%, which demonstrated antigen-specific killing and cytokine secretion. Conclusion T ceils can be proliferated with this new procedure, and maintain its phenotype and antigen-specific function.
9.Diagnosis,treatment,and prognostic analysis of thirty-one cases with primary bronchopulmonary carcinoid
Wenjuan ZHONG ; Feng QIU ; Lili HU ; Yanjun YIN ; Zhanmin ZHANG
Chinese Journal of Clinical Oncology 2014;45(11):724-728
Objective:We aimed to explore the clinical features, computed tomography (CT) findings, treatment, and prognosis of bronchopulmonary carcinoid. Methods:Clinical data of 31 patients with primary carcinoid tumor of the lung were retrospectively re-viewed. The prognostic factors were analyzed via Cox univariate and multivariate analyses. Results: Clinical symptoms included coughing or expectoration in 17 of the 31 cases, hemoptysis or blood-stained sputum in 7 cases, and chest pains or shortness of breath in 8 cases. Six cases were asymptomatic. The CT scans showed round or oval nodules with clear boundaries, and enhancement CT scans indicated mild, homogeneous enhancement. Immunohistochemistry results revealed the positive expression rates of synaptophy-sin (Syn), chromogranin A (CgA), and neuron-specific enolase (NSE) were 90.3%(28/31), 87.1%(27/31), and 90.3%(28/31), respec-tively. Therapy and prognosis results were as follows:28 of the total number of patients underwent surgery, among which 3 underwent postoperative adjuvant therapy, 2 received chemotherapy; and only 1 refused treatment. The 1-year overall survival rates were 100%(18/18) and 92.3%(12/13), whereas the 3-year survival rates were 94.4%(17/18) and 69.2%(9/13) in the typical and atypical carcinoid cases, respectively. Cox univariate analysis results revealed that lymphatic metastasis (P=0.02), tissue types (P=0.017), TNM stage (P=0.005), and therapies (P=0.01) were the prognostic factors. Cox multivariate analysis results showed that lymphatic metastasis (P=0.032) and tissue types (P=0.002) were the independent prognostic factors. Conclusion:Compared with other lung cancers, the bron-chopulmonary lung carcinoid has no special clinical manifestation in clinical and radiographic images. The diagnosis was mainly based on histopathology results. Surgery was the main and effective treatment, whereas chemotherapy and radiotherapy showed unsatisfactory results. The overall prognosis was satisfactory. However, the atypical carcinoid was inferior to the typical carcinoid in terms of progno-sis. Pathological typing and lymph node metastasis were significant prognostic factors.
10.Study on repacking of HITACHI SX-YB2 X-ray photography system
Yanjun LU ; Lishan KUANG ; Ming LI ; Ling MOU ; Bingxiao FENG
Chinese Medical Equipment Journal 1993;0(06):-
The new general photography system is composed of overhang of SX-YB2 departed from the mainframe of HITACHI Digital Fluoroscpic(model 110XF),topmanagement system of FSK302-1 and FSB302-1 and leveled adiogaphy system of F78-III.The filament heater circuit,rotating anode startup and running circui and X-ray produce circuit are mainly changed,and some circuits in power and filament heat are added.