Objective To explore the relationship between insluin resistance(IR)and plasma fibrinogen, blood lipids levels in patients with gestational diabetes mellitus (GMD).Methods Totally 127cases pregnant women in their 24 -28 gestational weeks were divided into GDM group(n =37),gestational impaired glucose tolerance test (GIGT)group(n =30)and normal glucose tolerance(NGT)group(n =60)based on the American Diabetes Associ-ation(ADA)2009 GDMdiagnostic standards.All selected cases's height,weight,fasting blood glucose (FBG),fasting insulin (FIN),blood lipids and fibrinogen(FIB)level were tested,and their body mass index(BMI)and IR index (HOMA -IR)were calculated.Results During the mid -trimester,the levels of BMI,FIB,HOMA -IR,FBG,FIN, triglyceride (TG),cholesterol(TC),low density lipoprotein -cholesterol (LDL -C)in the GDM group were signifi-cantly higher than the GIGT and NGT groups.However,high density lipoprotein -cholesterol (HDL -C)was signifi-cantly lower (F =69.29,98.15,70.32、141.43、61.92,106.06,157.06,90.59,25.25,all P <0.01).FIB was sig-nificantly positively correlated with BMI,FBG,FIN,HOMA -IR,TC,TG,LDL - C (r =0.441,0.682,0.506, 0.599,0.493,0.591,0.633,all P <0.01 ),and negatively correlated with HDL -C(r =-0.419,P <0.01 ).Multiple stepwise regression analysis indicated that BMI,LDL -C,FBG and TG were independent risk factors affect-ing FIB(t =7.683,2.678,3.184,3.844,all P <0.01);FIB,BMI,FBG,FIN and TC were independent risk factors influencing HOMA -IR(t =68.784,3.201,29.702,58.100,2.904,all P <0.01).Conclusion Pregnant women have IR and blood lipid disorders during the mid -trimester,the overexpression of FIB is closely related to it.

Objective To explore the relationship of serum ferritin with insluin resistance(IR)and inci-dence of fatty liver in adults with simple obesity.Methods According to body mass index (BMI),78 adults with simple obesity were divided into three groups,including 34 cases in Ⅰ degree obesity group,30 cases in Ⅱ degree obesity group and 14 cases in Ⅲ degree obesity group,and 35 adults with simple overweight and 67 healthy adults were also enrolled as control group.The height,weight,waistline,hip circumference,incidence of fatty liver,fasting blood glucose (FBG),fasting insulin (FIN),blood lipids and ferritin(SF)level were tested,and the body mass index (BMI),WHR and IR index (HOMA -IR)were calculated.Results When BMI increased,levels of SF,HOMA -IR, FBG,FIN,triglyceride (TG),cholesterol (TC),low density lipoprotein -cholesterol (LDL -C)were gradually increased(F =378.92,12.01,55.50,123.96,90.09,127.65,23.81,all P <0.01).However,high density lipopro-tein -cholesterol (HDL -C)was gradually degraded(F =114.56,P <0.01).The incidence of fatty liver had signifi-cant differences in Ⅰ,Ⅱ,Ⅲ degree obesity groups((t =24.872,7.885,all P <0.01),and with the degree of obesity increased,the rate of fatty liver increased significantly.SF range interquartile and level in fatty liver group was signifi-cantly greater than the non fatty liver group,the difference was statistically significant (t =22.99,P <0.01).SF was positively correlated with BMI,WRH,FBG,FIN,HOMA -IR,TC,TG,LDL -C (r =0.863,0.719,0.789,0.703, 0.617,0.785,0.717,0.771,all P <0.01),and negatively correlated with HDL -C(r =-0.530,P <0.01).Multi-ple stepwise regression analysis indicated that BMI,FIN,LDL -C,HOMA -IR were independent risk factors affecting SF(t =4.646,2.595,-5.073,6.666,all P <0.01).SF,BMI,FBG,FIN,LDL -C were independent risk factors influencing HOMA -IR(t =6.535,3.254,18.827,61.227,2.154,all P <0.05).Conclusion Simple obesity adults had obvious blood lipid disorders and IR,easy to complicated with fatty liver,the incidence of fatty liver associ-ated with severity of obesity,the overexpression of SF is closely related to it.

Objective:Characteristics of the retroperitoneal tumor blood supply arteries were analyzed to evaluate the safety and effec-tiveness of preoperative interventional embolization for benign and malignant retroperitoneal tumors. Methods:A total of 241 cases were divided into benign retroperitoneal tumor group and malignant retroperitoneal tumor group. Each group was divided into groups A, B, and C according to the long diameter of the tumor tissue. Group A>10.0 cm, 5.0 cm0.05). Significant differences in intraoperative bleeding and intraoperative blood transfusion were found between groups A and B (P<0.05). Main arteries of the abdominal retroperitoneal tumor are the lumbar, internal iliac, and adrenal arteries. The main artery of pelvic retroperitoneal tumor is the internal iliac artery. Conclusion:Preoperative interventional embolization can effec-tively reduce the risk of bleeding during malignant retroperitoneal tumor surgery and improve the perioperative safety of patients. No significant benefit of benign retroperitoneal tumors and no increased risk of bleeding during surgery were observed. Retroperitoneal tumor preoperative embolization should focus on investigating the lumbar, internal iliac, and adrenal arteries.

Objective To evaluate the feasibility and safety of hypothermic perfusion via renal artery balloon catheter before laparoscopic partial nephrectomy.Methods A total of 35 patients,who were arranged to receive laparoscopic partial nephrectomy during the period from March 2013 to December 2016 at the General Hospital of PLA,China,were enrolled in this study.The tumor was located in the left kidney in 22 patients and in the right kidney in 13 patients.The long diameter of the tumors was 2.3-7.0 cm,with a mean of (4.1±1.2) cm.Before laparoscopic partial nephrectomy,the implantation of renal artery balloon catheter was performed in all patients.The intraoperative renal cold-ischemia time,the time spent for operation and the amount of intraoperative blood loss were recorded.The creatinine clearance rate (Ccr) and estimated glomerular filtration rate (eGFR) were determined before operation as well as at one,3 and 7 days after operation.The intraoperative and postoperative complications were analyzed.Results Successful implantation of renal artery balloon catheter was accomplished in all 35 patients,with the technical success rate being 100％.Slipping of balloon catheter before laparoscopic partial nephrectomy occurred in one patient;in 2 patients incomplete occlusion of renal artery was found during operation and artery forceps had to be used to occlude the renal artery.In the other 32 patients,laparoscopic partial nephrectomy under the condition of hypothermic perfusion via renal artery balloon catheter was successfully carried out.No severe complications occurred during and after the operation.The average cold-ischemia time of the diseased kidney was 45 (20-125) min,the mean time for interventional procedure was 28 (20-40) min,the average surgery time was 147(95-235) min,the average amount of intraoperative blood loss was 180(50-1000) ml.The Ccr values determined before and at one,3,7 days after nephrectomy were (96.5±15.1),(75.2±10.5),(54.3±13.8) and (91.8±14.1) ml/min respectively.The eGFR values determined before and at one,3,7 days after nephrectomy were (99.5±15.3),(70.3±12.5),(65.5±11.7) and (96.8±12.3) ml·min-1·m-2 respectively.Statistical analysis indicated that in both groups the preoperative and 7-day postoperative Ccr values and eGFR values were significantly different from their one-day and 3-day postoperative values (P＜0.01),but no statistically significant differences existed between preoperative values and 7-day postoperative ones (P＞0.05).Conclusion Hypothermic perfusion via renal artery balloon catheter before laparoscopic partial nephrectomy is clinically safe and feasible,it can prolong the safe time of renal ischemia and protect renal function.

Objective To analyze the urine trace albumin(mALb)/creatinine(Cr) ratio and blood uric acid(UA),and other various metabolic index level in patients with diabetic nephropathy(DN),combined with clinical data such as patients' age,body mass index(BMI),course of diseases,to explore the related mechanism of occurrence and development of DN.Methods 76 DN patients were selected.The microalbuminuria group(urinary mALb/Cr<300μg/mg) had 46 cases,the clinical albuminuria group(urinary mALb/Cr≥300μg/mg) included 30 cases,another 49 diabetic patients without kidney damage were seleted as control group.The urinary mALb/Cr,blood UA,fasting blood glucose(FBG),triacylglycerol(TG),total cholesterol(TC),high-density lipoprotein(HDL),low density lipoprotein(LDL),glycosylated hemoglobin(HbA1c) levels were determined.The BMI and the length of the course of the disease calculate.Results The patients' age,course of the disease,urinary mALb/Cr,blood UA,FBG,TC,TG,LDL,HbA1c and BMI level in the clinical albuminuria group and microalbuminuria group were significantly higher than those in the control group,the differences were statistically significant (F=6.18,12.48,141.43,12.48,8.49,4.98,6.18,3.89,3.17,3.89,all P<0.05).The high uric acid hematic disease rates of the clinical albuminuria group and microalbuminuria group were 26.09% and 26.09%,which were significantly higher than 10.20% of the control group,the differences were statistically significant(x2=4.074,24.833,all P<0.05).Urinary mALb/Cr was positively correlated with age,duration,BMI,UA,TG,TC,LDL,FBG,HbA1c(r=0.120,0.299,0.148,0.340,0.157,0.149,0.103,0.487,0.103).Multiple linear stepwise regression analysis suggested that duration,blood UA,FBG were independent risk factors of urinary mALb/Cr;TG,BMI,urinary mALb/Cr were independent risk factors for blood UA.Conclusion Urinary mALb/Cr and blood UA are the independent risk factors,high uric acid hematic disease may participate in the development process of DN,and diabetes duration,UA,BMI,TG,TC,LDL,FBG,HbA1C associated with increased urinary mALb/Cr excretory DN patients,the effective monitoring can improve the symptoms of DN and quality of life.

For the treatment of liver tumors,interventional therapy is becoming more and more important.The development of interventional therapy relies on the development and application of new materials,new equipment and new drugs,and the preclinical animal testing of these applications is an important part of assessing the safety and effectiveness of interventional procedures.The animal HCC model plays an important leading role in exploring the new approach of interventional therapy.However,the animal HCC models which are suitable for experimental researches are limited,at present,the animal HCC models are mainly confined to rats and rabbits.Due to the limitation of animal body shape,routine interventional instruments and equipment are not suitable to perform interventional procedures for some small animals.Nowadays,there is still a shortage of devices for interventional hepatic artery surgery in mice,and interventional instruments for rats are also limited.This paper aims to make a summary about the types of HCC model in rats and rabbits which are often used in the experimental researches,the modeling methods,the interventional procedures,the anesthesia and imaging examinations,etc.

To investigate the transgenic expressing efficacy of helper-dependent adenoviral vector (HDAd) in vitro, we constructed a HDAd encoding enhanced green fluorescent protein (EGFP), denominated as HDAd/EGFP, performed large scale preparation and purification, and then identified the purified HDAd/EGFP under fluorescent microscope and electron microscope. After the concentration of HDAd/EGFP was determined by spectrophotometer, the transgenic expression efficiency of HDAd/EGFP was compared with first generation adenoviral vector encoding EGFP (FGAd/EGFP) in vitro. Therefore, we infected A549 cells with 2000 virus particles (vp) per cell by HDAd/EGFP and FGAd/EGFP respectively and analyzed EGFP expressing level by flow cytometry. Consequently, the fluorescent expression rate and fluorescent intensity of EGFP were higher in early infected A549 cells by HDAd/EGFP than by FGAd/EGFP. HDAd, capable of expressing transgene instantly and efficiently in vitro, is a potential vaccine vector.
Adenoviridae ; genetics ; metabolism ; Cell Line, Tumor ; Genetic Vectors ; genetics ; Green Fluorescent Proteins ; genetics ; Helper Viruses ; genetics ; metabolism ; Humans ; Transgenes ; Viral Fusion Proteins ; genetics ; metabolism

Objective:To explore the spatial clustering and trend of liver cancer mortality in different counties of Shandong province from 1970 to 2013, and provide scientific basis for the development of liver cancer prevention and control plan.Methods:Cancer mortality data were obtained from Shandong Death Registration System and three national death cause surveys in China. Mortality rate and age adjusted mortality rate were used to describe the trend of liver cancer in different years. Difference decomposing method was applied to estimate the contribution of demographic and non-demographic factors to the change of mortality. Software ArcGIS 10.2 was used for spatial analysis, and software SaTScan 9.4 was used for spatial clustering analysis on liver cancer mortality.Results:From 2011 to 2013, the crude mortality rate of liver cancer (29.89/100 000) in Shandong increased by 208.00 % and 35.37 % respectively compared with that during 1970-1974 (9.72/100 000) and 1990-1992 (22.08/100 000) and was similar to that during 2004-2005 (30.44/100 000). While age standardized mortality rate (ASMR) increased first and then decreased. The ASMR during 2011-2013 (12.62/100 000) increased by 60.97 % compared with that during 1970-1974 and decreased by 22.38 % and 21.81 % compared with that during 1990-1992 and 2004-2005, respectively. According to the difference decomposition analysis on liver cancer mortality in different years, the contribution of population factors to the liver cancer mortality rate increased from 3.38 % during 1990-1992 to 29.36 % during 2004-2005 and 46.16 % during 2011-2013. However, the contribution of non-population factors to the increase of liver cancer mortality decreased. According to the spatial distribution of liver cancer mortality, the crude mortality rate of liver cancer in different counties were quite different, ranging from 9.33/100 000 to 65.33/100 000. Using the spatial scanning statistical software to analyze the spatial clustering of liver cancer mortality, multi areas with high mortality rate of liver cancer were found, and they were mainly distributed in Jiaodong peninsula from 2011 to 2013, covering 20 counties (cities, districts) in Qingdao, Yantai and Weihai. The risk of liver cancer mortality in this area was 1.54 times higher than that in other areas. The spatial clustering distribution of liver cancer mortality during 1970-1974 was significantly different from that during 2011-2013, the areas with high mortality rate during 1970-1974 were mainly distributed in central and western Shandong. Conclusions:There were significant temporal and spatial distribution changes in the mortality rate of liver cancer in Shandong from 1970 to 2013. According to these trends and their geographical and spatial distribution, we should further explore the risk factors of liver cancer, and formulate feasible and area specific prevention and control measures for liver cancer.

Hepatocellular carcinoma is a commonly-seen malignant tumor with high morbidity and mortality all over the world.With the rapid development of molecular biology and scientific technology,in treating HCC the use of nano knife technology,which is developed on the principle of irreversible electroporation,has come into clinicians' consideration.The authors are hereby making a comprehensive review about nano knife,focusing on the principles of nano knife therapy for liver cancer,the advantages of nano knife,and the latest developments in clinical practice and researches,etc.

Objective:To describe the trend of mortality and death spectrum in Shandong Province from 1970 to 2021 and provide basis for the targeted disease prevention and control.Methods:The data were collected from the death registration reports of Shandong and 3 national retrospective surveys of death causes in Shandong. The change in levels of overall and specific deaths in Shandong in different years were analyzed based on mortality rate, age-standardized mortality rate and constituent ratio of cause of death, differential decomposition was used to quantify the contribution of demographic and non-demographic factors to changes of mortality.Results:The crude mortality rate in residents in Shandong was basically stable from 1970 to 2021, and the mortality rate during 2020-2021 (732.73/100 000) was slightly higher than that during 1970-1974 (671.98/100 000). While the standardized mortality rate decreased significantly, and the mortality during 2020-2021 (183.39/100 000) decreased by 67.71% compared with that during 1970-1974 (568.00/100 000). The negative increase of population factors and the positive decrease of non-population factors reacted each other, so the mortality was relatively stable. Cardiac-cerebrovascular disease was always the leading cause of death, but the constituent ratio of death increased rapidly from 19.70% during 1970-1974 to 54.72% during 2020-2021. The rank in the causes of death changed from the fourth (11.46%) to the second (25.70%) for malignant tumor, from the seventh (5.85%) to the third (5.59%) for injury, from the second (12.87%) to the fourth (4.99%) for chronic respiratory diseases, from the third (12.27%) to the tenth (0.42%) for infectious diseases. The standardized mortality rates of the main causes of death decreased at different degrees, the standardized mortality rates of obstetrical disease, infectious disease, gastrointestinal disease and chronic respiratory disease decreased by more than 50.00%. The age distribution of deaths and the death spectrum in different age groups and in urban-rural populations changed significantly. During 2020-2021, the proportion of deaths in young people aged 0-14 years was 0.54%, which was 97.05% lower than that during 1970-1974, while the proportion of deaths in the elderly aged ≥75 years was 55.14%, which was 55.75% higher than that during 1970-1974. The rank of infectious diseases in the causes of death descended significantly in all age groups, but the ranks of injury, neuropsychiatric disease and malignant tumor rose significantly in adolescents, and the ranks of endocrine nutrition and metabolic disease rose in middle-aged and elderly people. The difference of death spectrum between urban area and rural area became less obvious and the main death causes in urban and rural residents were basically the same during 2020-2021.Conclusions:The death spectrum of residents in Shandong changed significantly. Chronic and non-communicable diseases, especially cardiac-cerebrovascular disease and malignant tumor, should be the focus in disease control and prevention. The prevention and control of diseases in Shandong made remarkable achievement during 1970-2021. However, in the context of population ageing, it is suggested to strengthen the treatment, prevention of diseases and injuries related to the health of the elderly and elderly health care in the future.