1.mTOR and its signaling pathway in gastric cancer
Journal of International Oncology 2010;37(12):930-933
Mammalian target of rapamycin (mTOR) and its signaling pathway regulate protein synthesis, cell growth and metabolism, and angiogenesis. This pathway is highly activated in gastric cancer and closely related to the progression and prognosis of the cancer. Blocking the mTOR signaling pathway by rapamycin and its derivatives can inhibit gastric cancer cell growth and promote tumor necrosis and such effects can be synergistically improved by combined use of other chemotherapeutic agents. Thus, rapamycin and its derivatives may be effective in the prevention and treatment of gastric cancer.
2.Application of intensive insulin therapy in critically ill patients.
Chinese Journal of Practical Internal Medicine 2001;0(03):-
Hyperglycemia is common in critically ill patients,even in patients without a history of diabetes mellitus.Stress plays an important role in the genesis of hyperglycemia.Many studies have demonstrated the association between hyperglycemia and adverse outcomes.Tight glycaemic control using intensive insulin therapy can reduce morbidity and mortality associated with critical illness.Application of the therapy shows a good prospect and is also facing some problems.
3.Epidemiological characteristics of measles in different immunization program periods in Jiaxing City
HU Jie ; WANG Yuanhang ; YU Pengfei
Journal of Preventive Medicine 2024;36(12):1013-1016
Objective:
To investigate the epidemiological characteristics of measles in Jiaxing City of Zhejiang Province in different immunization program periods, so as to provide the evidence for improving prevention and control strategies of measles.
Methods:
Data of measles cases in Jiaxing City from 2005 to 2023 was collected through the Chinese Disease Prevention and Control Information System. Population, temporal, and regional distribution of measles during the periods of pre-expanded immunization program (from 2005 to 2007), expanded immunization program (from 2008 to 2010), and enhanced immunization program (from 2011 to 2023) were descriptively analyzed.
Results:
There were 3 997 measles cases reported in Jiaxing City from 2005 to 2023, with an average annual reported incidence of 4.66/105, showing a decreasing trend (P<0.05). The average annual reported incidence of measles during the periods of pre-expanded immunization program, expanded immunization program, and enhanced immunization program were 22.88/105, 7.24/105 and 0.83/105, respectively. The incidence of measles during different stages of immunization strategies all peaked from March to May. The highest reported incidence was 5.94/105 in Pinghu City and the lowest was 3.92/105 in Tongxiang City. The districts with the highest average annual reported incidence in the periods of pre-expanded immunization program, expanded immunization program, and enhanced immunization program were Nanhu District (31.10/105), Pinghu City (11.10/105) and Jiashan County (1.55/105), respectively. There was spatial clustering of measles in Jiaxing City during the period of pre-expanded immunization program (Moran's I=0.787, P<0.05), with a high-high cluster in Nanhu District.
Conclusions
The reported incidence of measles in Jiaxing City showed a decreasing trend from 2005 to 2023. There was a spatial cluster of measles incidence during the period of pre-expanded immunization program, but no significant clusters during the periods of expanded immunization program and enhanced immunization program.
4.Expression of microRNA-210 in gastric cancer and its relationship with clinicopathological factors and prognosis
Pengfei YU ; Yian DU ; Litao YANG ; Gaiguo DAI ; Ling HUANG
China Oncology 2017;27(3):197-200
Background and purpose: miR-210 was closely related to the occurrence and development of gastric cancer, but its mechanism and clinical significance were still not clear. The purpose of this study was to explore the expression of miR-210 in gastric cancer tissues and its clinical significance. Methods: The expression of miR-210 was detected in gastric cancer tissues and the corresponding adjacent tissues. The relationship between the expression of miR-210 and clinical pathological factors and prognosis was analyzed. Results: Real-time fluorescent quantitative polymerase chain reaction (RTFQ-PCR) showed that the expression of miR-210 in gastric cancer was higher than that in adjacent tissues, and there was a significant difference between the two groups (P<0.05). The expression of miR-210 was closely related to tumor size, lymph node metastasis and TNM stage, but was not related to age, gender, tumor dif-ferentiation and depth of invasion. The 5-year survival rate of patients with low miR-210 expression was 48.2%, where-as the 5-year survival rate of patients with high miR-210 expression was 30.4% (χ2=4.216, P=0.040). Conclusion: The expression of miR-210 in gastric cancer was higher than that in adjacent tissues, and maybe related to the development and prognosis of gastric cancer. miR-210 is expected to be a new diagnostic marker and therapeutic target for gastric cancer.
5.Clinical features and ageing-related changes in patients with venous thromboembolism
Lijun KANG ; Jianwen FEI ; Pengfei YU ; Yan TANG
Chinese Journal of Geriatrics 2010;29(1):46-48
Objective To investigate the clinical and epidemiological characteristics of pulmonary thromboembolism (PTE) and deep venous thrombosis (DVT). Methods The clinical data of 114 200 inpatients from June 2002 to June 2008, including gender, age, smoking history, primary disease and risk factors, were reviewed. Results There were 1445(1.27%) cases with venous thromboembolism (VTE), while 1433(1. 25%) patients suffered from DVT and 153(0. 13%) patients suffered from PTE, 16(11. 11 %) patients were dead of PTE. Of all the DVT patients, there were 1348(94. 1%) cases with DVT of lower limbs with no significant difference between left or right lower limb (P>0. 05). There were 49(3.4%) cases with inferior vena cava, 23(1.6%) cases with cavitas pelvis veins and 13(0. 9%) cases with upper extremity veins. The peak ages of morbidity were between 51 to 60 years. Conclusions The incidence of VTE is increasing with ageing and there is no significant difference between males and females. The most common risk factors for thromboembolism include trauma, surgery, cardiac and pulmonary disease, age over 50 years, deep phlebitis, long-term smoking, cancer, pregnancy, childbirth, braking, history of VTE, etc. We may lower the incidence and mortality of VTE by strengthening prevention work according to the high risk factors.
6.The immunoprecipitation method for the determination of ?-glutamyltransferase complexed to two lipoproteins in serum and its application for the diagnosis of liver malignancies
Jiaping YU ; Aihua WANG ; Pengfei GU ; Jun CHEN
Chinese Journal of Laboratory Medicine 2000;0(06):-
Objective To establish the immunoprecipitation method to detect the activity of ?-glutamyltransferase (GGT) complexed to low-density-lipoprotein and very-low-density-lipoprotein in serum (LDL-LDL-GGT) and to observe the diagnostic efficiency in discriminating liver malignancies from other hepatopathy diseases.Methods Using apo B antibody as a precipitant to precipitate the parts of GGT which connected to LDL and VLDL. 65 cases of liver malignancies, 53 cases of cirrhosis, 32 of chronic hepatitis and 75 of health people were analysed. Results Apo B antibody can precipitate LDL and VLDL thoroughly with various serum samples. The withinrun CV are 3 6%~8 2% and the betweenrun CV are 5 5%~9 8%. The linearity range is 0~587 U/L. With the cut off value of 10 U/L, the sensitivity for liver malignancies is 86 2%, the specificities for discriminating liver malignancies from cirrhosis and chronic hepatitis is 67 9% and 81 3% respectively. Conclusion It has important significance for the diagnosis of liver malignancies with the immunoprecipitation method for determination of serum LDL-VLDL-GGT activity.
7.Soluble growth stimulating gene 2 protein and prealbumin correlates with prognosis in patients with chronic pulmonary heart disease with refractory heart failure
Pengfei LIU ; Bin XU ; Yu ZHANG ; Huijing ZHANG ; Qun ZHENG
Chinese Journal of Emergency Medicine 2021;30(5):607-611
Objective:To study the clinical significance of early detection of soluble growth stimulating gene 2 protein (sST2) and prealbumin (PAB) in patients with chronic pulmonary heart disease (CPHD) complicated with refractory heart failure.Methods:From September 2017 to June 2019, 112 CPHD patients complicated with refractory heart failure were admitted to Hengshui People's Hospital. The selected patients met the revised guidelines for the diagnosis and treatment of chronic obstructive pulmonary disease (2013 revision) and the cardiac function grade Ⅲ-Ⅳ according to the grading criteria of the New York Cardiology Society. Cardiogenic shock, severe liver and kidney dysfunction, malignant tumors, anemia, and autoimmune diseases were excluded. Patients were divided into the high PAB group (≥200 mg/L) and the low PAB group (<200 mg/L) according to the PAB level on admission. The pulmonary artery systolic blood pressure (PASP), pulmonary artery mean pressure (MPAP), and left ventricular ejection fraction (LVEF) were observed in the two groups before and after the treatment. PAB, total bilirubin (TBIL), hypersensitive C reactive protein (hs-CPR), N-terminal B type brain natriuretic peptide (NT-proBNP) and sST2 levels were detected. Measurement data were expressed in terms of mean ± standard deviation, the counting data were compared using χ 2 test. Correlation analysis was conducted using Spearman correlation test. Results:There were 40 cases in the high PAB group and 72 cases in the low PAB group. There were no statistically significant differences in general data between the high PAB and low PAB groups ( P>0.05). Hospitalization time was significantly different between the two groups ( P<0.05). Before the treatment, there were no significant differences in PASP, MPAP, NT-proBNP and LVEF between the two groups ( P>0.05). High sST2 was significantly different between the two groups ( P<0.05). After the treatment, PASP, MPAP, NT-proBNP and sST2 were decreased in both groups, and the improvement was more obvious in the high PAB group than in the low PAB group, with statistical significance ( P<0.05). Before the treatment, the levels of TBIL and hs-CPR were not statistically different between the high PAB and low PAB groups ( P>0.05). However, the levels of TBIL and hs-CPR were beyond the normal range. After the treatment, TBIL and hs-CPR were decreased in both groups, and there was statistically significant difference between the two groups ( P<0.05). Spearman correlation analysis showed that PAB was negatively correlated with sST2 ( r=-0.778, P=0.001). There was a positive correlation between cardiac function and sST2 ( r=0.569, P=0.034), hospitalization time ( r=0.572, P=0.033) in patients with refractory heart failure. The higher the sST2 of CPHD with refractory heart failure, the longer the patient hospitalization time, and the more serious the heart failure was. The area under the combined ROC curve of PAB and sST2 was 0.756. CPHD patients with refractory heart failure had the greatest predictive value. Conclusion:The combined test of sST2 and PAB can evaluate the condition and outcome of CPHD patients with refractory heart failure, and guide the clinic.
8.Determination of Cefotiam in Human Plasma Using Liquid Chromatography-Tandem Mass Spectrometry
Ping DU ; Pengfei LI ; Hongchuan LIU ; Weiyue YU ; Lihong LIU
Chinese Journal of Analytical Chemistry 2016;44(6):876-881
In order to evaluate the pharmacokinetic profile of cefotiam hexetil hydrochloride tablet in Chinese healthy volunteers, a sensitive, specific and rapidprotein precipitation-liquid chromatography-tandem mass spectrometry method was developed and validated in human plasma. Chromatographic separation was achieved on a Waters Symmtry-C18 column (50 mm × 4. 6 mm, 5 μm), using a gradient mobile phase consisting of methanol and 1 mmol/ L ammonium acetate in water at a flow rate of 1. 0 mL/ min. Cefotiam and diazepam (internal standard) were detected without interference in the multiple reaction monitoring (MRM) mode with positive electrospray ionization. The calibration curve was linear from 5. 0 ng / mL to 5000 ng / mL (r>0. 99) with limit of quantitation of 5. 0 ng / mL. The assay met the published acceptance criteria. This rapid, sensitive and reproducible method was successfully applied to the pharmacokinetic study of cefotiam hexetil hydrochloride tablet in healthy Chinese volunteers and therefore provided a considerable mirror for quantification of other cephalosporins in human matrix.
9.Change Rules of Quantity and Species of Diatoms in Hunhe River in Shenyang
Yu DU ; Zhe ZHOU ; Hongyang CAI ; Pengfei LI ; Junling XIA
Journal of Forensic Medicine 2013;(5):337-339,343
Objection To observe the change rules of quantity and species of diatom sin Hunhe River in Shenyang and to provide technology and scientific evidence for drow ning identification and the location of drow ning in forensic investigation. Methods In 2011, different locations for collecting water sam pleswere chosen in Hunhe River in Shenyang. Water sam pleswere collected and variation of quantity and species of diatom swere observed every month. And variation of dom inant species of diatom swas ob-served every week. Results The quantity, speciesand dom inant species of diatom sin Hunhe River in Shenyang varied with different tim eand locations. The quantity and species of diatom swere lowest from Decem ber to February and gradually increased, reaching peak in May and second peak in October, and then gradually decreased. The dom inant species of diatom s varied significantly adjacent two weeksat same location from April to N ovem ber, but had little changesat different locationsin same week from July to August. Conclusion The change rules of quantity and species of diatom sare com plicated and affected by various factors such as environm ent and hydrology. The change rules of speciesand quantity of diatom s should be considered in forensic investigation of drow ning identification and the lo-cation of drow ning.
10.Analysis and evaluation of the effect of the implementation plan of personnel training in medical institutions
Chengdong JI ; Yun MIN ; Chang XU ; Pengfei WANG ; Dehua YU
Chinese Journal of Medical Science Research Management 2015;28(2):183-187,封4
Objective To establish an evaluation system to assess the effect of personnel training program for health professionals in the hospital,in order to achieve the goal that improve the overall competitiveness of the hospital.Methods Comparing and analyzing the differences in research project,research achievements,personnel capacity building before and after implementation of the training program.Paired T-test was used to exam the differences.Results There are statistically significant differences for proposed analyses (p ≤ 0.05).Conclusions The outcome of this study indicates that the personnel training program is extremely important to further development of the hospital.